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Last change on this file since 4540 was 4540, checked in by raasch, 4 years ago

files re-formatted to follow the PALM coding standard

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/palm/branches/chemistry/SOURCE/biometeorology_mod.f90	2047-3190,3218-3297
/palm/branches/resler/SOURCE/biometeorology_mod.f90	2023-4492
/palm/branches/salsa/SOURCE/biometeorology_mod.f90	2503-3581
/palm/trunk/SOURCE/biometeorology_mod.f90	merged	eligible
/palm/branches/forwind/SOURCE/biometeorology_mod.f90	1564-1913
/palm/branches/fricke/SOURCE/biometeorology_mod.f90	942-977
/palm/branches/hoffmann/SOURCE/biometeorology_mod.f90	989-1052
/palm/branches/letzel/masked_output/SOURCE/biometeorology_mod.f90	296-409
/palm/branches/palm4u/SOURCE/biometeorology_mod.f90	2540-2692
/palm/branches/rans/SOURCE/biometeorology_mod.f90	2078-3128
/palm/branches/suehring/biometeorology_mod.f90	423-666

File size: 192.2 KB

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1	!> @file biometeorology_mod.f90
2	!--------------------------------------------------------------------------------------------------!
3	! This file is part of PALM-4U.
4	!
5	! PALM-4U is free software: You can redistribute it and/or modify it under the terms of the GNU
6	! General Public License as published by the Free Software Foundation, either version 3 of the
7	! License, or (at your option) any later version.
8	!
9	! PALM-4U is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
10	! the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
11	! Public License for more details.
12	!
13	! You should have received a copy of the GNU General Public License along with PALM. If not, see
14	! <http://www.gnu.org/licenses/>.
15	!
16	! Copyright 2018-2020 Deutscher Wetterdienst (DWD)
17	! Copyright 2018-2020 Institute of Computer Science, Academy of Sciences, Prague
18	! Copyright 2018-2020 Leibniz Universitaet Hannover
19	!--------------------------------------------------------------------------------------------------!
20	!
21	! Current revisions:
22	! ------------------
23	!
24	!
25	! Former revisions:
26	! -----------------
27	! $Id: biometeorology_mod.f90 4540 2020-05-18 15:23:29Z raasch $
28	! file re-formatted to follow the PALM coding standard
29	!
30	! 4535 2020-05-15 12:07:23Z raasch
31	! bugfix for restart data format query
32	!
33	! 4517 2020-05-03 14:29:30Z raasch
34	! added restart with MPI-IO for reading local arrays
35	!
36	! 4495 2020-04-13 20:11:20Z raasch
37	! restart data handling with MPI-IO added
38	!
39	! 4493 2020-04-10 09:49:43Z pavelkrc
40	! Revise bad formatting
41	!
42	! 4286 2019-10-30 16:01:14Z resler
43	! implement new palm_date_time_mod
44	!
45	! 4223 2019-09-10 09:20:47Z gronemeier
46	! Corrected "Former revisions" section
47	!
48	! 4168 2019-08-16 13:50:17Z suehring
49	! Replace function get_topography_top_index by topo_top_ind
50	!
51	! 4144 2019-08-06 09:11:47Z raasch
52	! relational operators .EQ., .NE., etc. replaced by ==, /=, etc.
53	!
54	! 4127 2019-07-30 14:47:10Z suehring
55	! Output for bio_mrt added (merge from branch resler)
56	!
57	! 4126 2019-07-30 11:09:11Z gronemeier
58	! renamed vitd3_exposure_av into vitd3_dose,
59	! renamed uvem_calc_exposure into bio_calculate_uv_exposure
60	!
61	! 3885 2019-04-11 11:29:34Z kanani
62	! Changes related to global restructuring of location messages and introduction of additional debug
63	! messages
64	!
65	! 3753 2019-02-19 14:48:54Z dom_dwd_user
66	! - Added automatic setting of mrt_nlevels in case it was not part of radiation_parameters namelist
67	! (or set to 0 accidentially).
68	! - Minor speed improvoemnts in perceived temperature calculations.
69	! - Perceived temperature regression arrays now declared as PARAMETERs.
70	!
71	! 3750 2019-02-19 07:29:39Z dom_dwd_user
72	! - Added addittional safety meassures to bio_calculate_thermal_index_maps.
73	! - Replaced several REAL (un-)equality comparisons.
74	!
75	! 3742 2019-02-14 11:25:22Z dom_dwd_user
76	! - Allocation of the input _av grids was moved to the "sum" section of bio_3d_data_averaging to
77	! make sure averaging is only done once!
78	! - Moved call of bio_calculate_thermal_index_maps from biometeorology module to time_integration to
79	! make sure averaged input is updated before calculating.
80	!
81	! 3740 2019-02-13 12:35:12Z dom_dwd_user
82	! - Added safety-meassure to catch the case that 'bio_mrt_av' is stated after 'bio_<index>' in the
83	! output section of the p3d file.
84	!
85	! 3739 2019-02-13 08:05:17Z dom_dwd_user
86	! - Auto-adjusting thermal_comfort flag if not set by user, but thermal_indices set as output
87	! quantities.
88	! - Renamed flags "bio_<index>" to "do_calculate_<index>" for better readability
89	! - Removed everything related to "time_bio_results" as this is never used.
90	! - Moved humidity warning to check_data_output.
91	! - Fixed bug in mrt calculation introduced with my commit yesterday.
92	!
93	! 3735 2019-02-12 09:52:40Z dom_dwd_user
94	! - Fixed auto-setting of thermal index calculation flags by output as originally proposed by
95	! resler.
96	! - removed bio_pet and outher configuration variables.
97	! - Updated namelist.
98	!
99	! 3711 2019-01-31 13:44:26Z knoop
100	! Introduced interface routine bio_init_checks + small error message changes
101	!
102	! 3693 2019-01-23 15:20:53Z dom_dwd_user
103	! Added usage of time_averaged mean radiant temperature, together with calculation, grid and restart
104	! routines. General cleanup and commenting.
105	!
106	! 3685 2019-01-21 01:02:11Z knoop
107	! Some interface calls moved to module_interface + cleanup
108	!
109	! 3650 2019-01-04 13:01:33Z kanani
110	! Bugfixes and additions for enabling restarts with biometeorology
111	!
112	! 3448 2018-10-29 18:14:31Z kanani
113	! Initial revision
114	!
115	!
116	!
117	! Authors:
118	! --------
119	! @author Dominik Froehlich <dominik.froehlich@dwd.de>, thermal indices
120	! @author Jaroslav Resler <resler@cs.cas.cz>, mean radiant temperature
121	! @author Michael Schrempf <schrempf@muk.uni-hannover.de>, uv exposure
122	!
123	!
124	! Description:
125	! ------------
126	!> Biometeorology module consisting of two parts:
127	!> 1.: Human thermal comfort module calculating thermal perception of a sample human being under the
128	!> current meteorological conditions.
129	!> 2.: Calculation of vitamin-D weighted UV exposure
130	!>
131	!> @todo Alphabetical sorting of "USE ..." lists, "ONLY" list, variable declarations
132	!> (per subroutine: first all CHARACTERs, then INTEGERs, LOGICALs, REALs, )
133	!> @todo Comments start with capital letter --> "!-- Include..."
134	!> @todo uv_vitd3dose-->new output type necessary (cumulative)
135	!> @todo consider upwelling radiation in UV
136	!>
137	!> @note nothing now
138	!>
139	!> @bug no known bugs by now
140	!--------------------------------------------------------------------------------------------------!
141	MODULE biometeorology_mod
142
143	USE arrays_3d, &
144	ONLY: pt, p, u, v, w, q
145
146	USE averaging, &
147	ONLY: pt_av, q_av, u_av, v_av, w_av
148
149	USE basic_constants_and_equations_mod, &
150	ONLY: degc_to_k, c_p, l_v, magnus, pi, sigma_sb
151
152	USE control_parameters, &
153	ONLY: average_count_3d, biometeorology, &
154	debug_output, &
155	dz, dz_stretch_factor, &
156	dz_stretch_level, humidity, initializing_actions, nz_do3d, &
157	restart_data_format_output, surface_pressure
158
159	USE grid_variables, &
160	ONLY: ddx, dx, ddy, dy
161
162	USE indices, &
163	ONLY: nxl, nxr, nys, nyn, nzb, nzt, nys, nyn, nxl, nxr, nxlg, nxrg, nysg, nyng, &
164	topo_top_ind
165
166	USE kinds !< Set precision of INTEGER and REAL arrays according to PALM
167
168	USE netcdf_data_input_mod, &
169	ONLY: building_obstruction_f, netcdf_data_input_uvem, uvem_integration_f, &
170	uvem_irradiance_f, uvem_projarea_f, uvem_radiance_f
171
172	USE palm_date_time_mod, &
173	ONLY: get_date_time
174	!
175	!-- Import radiation model to obtain input for mean radiant temperature
176	USE radiation_model_mod, &
177	ONLY: id, ix, iy, iz, mrt_include_sw, mrt_nlevels, &
178	mrtbl, mrtinlw, mrtinsw, nmrtbl, radiation, &
179	rad_lw_in, rad_lw_out, rad_sw_in, rad_sw_out, radiation_interactions
180
181	USE restart_data_mpi_io_mod, &
182	ONLY: rrd_mpi_io, wrd_mpi_io
183
184
185	IMPLICIT NONE
186
187	!
188	!-- Declare all global variables within the module (alphabetical order)
189	INTEGER(iwp) :: bio_cell_level !< cell level biom calculates for
190
191	LOGICAL :: thermal_comfort = .FALSE. !< Enables or disables the entire thermal comfort part
192	LOGICAL :: do_average_theta = .FALSE. !< switch: do theta averaging in this module? (if .FALSE. this is done globally)
193	LOGICAL :: do_average_q = .FALSE. !< switch: do e averaging in this module?
194	LOGICAL :: do_average_u = .FALSE. !< switch: do u averaging in this module?
195	LOGICAL :: do_average_v = .FALSE. !< switch: do v averaging in this module?
196	LOGICAL :: do_average_w = .FALSE. !< switch: do w averaging in this module?
197	LOGICAL :: do_average_mrt = .FALSE. !< switch: do mrt averaging in this module?
198	LOGICAL :: average_trigger_perct = .FALSE. !< update averaged input on call to bio_perct?
199	LOGICAL :: average_trigger_utci = .FALSE. !< update averaged input on call to bio_utci?
200	LOGICAL :: average_trigger_pet = .FALSE. !< update averaged input on call to bio_pet?
201	LOGICAL :: average_trigger_mrt = .FALSE. !< update averaged input on call to bio_pet?
202	LOGICAL :: do_calculate_perct = .FALSE. !< Turn index PT (instant. input) on or off
203	LOGICAL :: do_calculate_perct_av = .FALSE. !< Turn index PT (averaged input) on or off
204	LOGICAL :: do_calculate_pet = .FALSE. !< Turn index PET (instant. input) on or off
205	LOGICAL :: do_calculate_pet_av = .FALSE. !< Turn index PET (averaged input) on or off
206	LOGICAL :: do_calculate_utci = .FALSE. !< Turn index UTCI (instant. input) on or off
207	LOGICAL :: do_calculate_utci_av = .FALSE. !< Turn index UTCI (averaged input) on or off
208	LOGICAL :: do_calculate_mrt2d = .FALSE. !< Turn index MRT 2D (averaged or inst) on or off
209
210	REAL(wp) :: bio_output_height !< height output is calculated in m
211
212	REAL(wp), PARAMETER :: bio_fill_value = -9999.0_wp !< set module fill value, replace by global fill value as soon as available
213	REAL(wp), PARAMETER :: human_absorb = 0.7_wp !< SW absorbtivity of a human body (Fanger 1972)
214	REAL(wp), PARAMETER :: human_emiss = 0.97_wp !< LW emissivity of a human body after (Fanger 1972)
215
216	REAL(wp), DIMENSION(:), ALLOCATABLE :: mrt_av_grid !< time average mean
217
218	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: perct !< PT results (degree_C)
219	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: pet !< PET results (degree_C)
220	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: tmrt_grid !< tmrt results (degree_C)
221	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: utci !< UTCI results (degree_C)
222	!
223	!-- Grids for averaged thermal indices
224	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: perct_av !< PT results (aver. input) (degree_C)
225	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: pet_av !< PET results (aver. input) (degree_C)
226	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: tmrt_av_grid !< tmrt results (degree_C)
227	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: utci_av !< UTCI results (aver. input) (degree_C)
228
229	!
230	!-- UVEM parameters from here
231	INTEGER(iwp) :: ai = 0 !< loop index in azimuth direction
232	INTEGER(iwp) :: bi = 0 !< loop index of bit location within an 8bit-integer (one Byte)
233	INTEGER(iwp) :: bio_nmrtbl
234	INTEGER(iwp) :: clothing = 1 !< clothing (0=unclothed, 1=Arms,Hands,Face free, 3=Hand,Face free)
235	INTEGER(iwp) :: iq = 0 !< loop index of irradiance quantity
236	INTEGER(iwp) :: pobi = 0 !< loop index of the position of corresponding byte within ibset byte vektor
237	INTEGER(iwp) :: obstruction_direct_beam = 0 !< Obstruction information for direct beam
238	INTEGER(iwp) :: zi = 0 !< loop index in zenith direction
239
240	INTEGER(KIND=1), DIMENSION(0:44) :: obstruction_temp1 = 0 !< temporary obstruction information stored with ibset
241	INTEGER(iwp), DIMENSION(0:359) :: obstruction_temp2 = 0 !< restored temporary obstruction information from ibset file
242
243	INTEGER(iwp), DIMENSION(0:35,0:9) :: obstruction = 1 !< final 2D obstruction information array
244
245	LOGICAL :: consider_obstructions = .TRUE. !< namelist parameter (see documentation)
246	LOGICAL :: sun_in_south = .FALSE. !< namelist parameter (see documentation)
247	LOGICAL :: turn_to_sun = .TRUE. !< namelist parameter (see documentation)
248	LOGICAL :: uv_exposure = .FALSE. !< namelist parameter (see documentation)
249
250	REAL(wp) :: diffuse_exposure = 0.0_wp !< calculated exposure by diffuse radiation
251	REAL(wp) :: direct_exposure = 0.0_wp !< calculated exposure by direct solar beam
252	REAL(wp) :: orientation_angle = 0.0_wp !< orientation of front/face of the human model
253	REAL(wp) :: projection_area_direct_beam = 0.0_wp !< projection area for direct solar beam
254	REAL(wp) :: saa = 180.0_wp !< solar azimuth angle
255	REAL(wp) :: startpos_human = 0.0_wp !< start value for azimuth interpolation of human geometry array
256	REAL(wp) :: startpos_saa_float = 0.0_wp !< start value for azimuth interpolation of radiance array
257	REAL(wp) :: sza = 20.0_wp !< solar zenith angle
258	REAL(wp) :: xfactor = 0.0_wp !< relative x-position used for interpolation
259	REAL(wp) :: yfactor = 0.0_wp !< relative y-position used for interpolation
260
261	REAL(wp), DIMENSION(0:2) :: irradiance = 0.0_wp !< iradiance values extracted from irradiance lookup table
262
263	REAL(wp), DIMENSION(0:2,0:90) :: irradiance_lookup_table = 0.0_wp !< irradiance lookup table
264	REAL(wp), DIMENSION(0:35,0:9) :: integration_array = 0.0_wp !< solid angle factors for hemispherical integration
265	REAL(wp), DIMENSION(0:35,0:9) :: projection_area = 0.0_wp !< projection areas of a human (all directions)
266	REAL(wp), DIMENSION(0:35,0:9) :: projection_area_lookup_table = 0.0_wp !< human geometry lookup table (projection areas)
267	REAL(wp), DIMENSION(0:71,0:9) :: projection_area_direct_temp = 0.0_wp !< temporary projection area for direct solar beam
268	REAL(wp), DIMENSION(0:71,0:9) :: projection_area_temp = 0.0_wp !< temporary projection area for all directions
269	REAL(wp), DIMENSION(0:35,0:9) :: radiance_array = 0.0_wp !< radiance extracted from radiance_lookup_table
270	REAL(wp), DIMENSION(0:71,0:9) :: radiance_array_temp = 0.0_wp !< temporary radiance data
271
272	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: vitd3_exposure !< result variable for instantaneous vitamin-D weighted exposures
273	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: vitd3_dose !< result variable for summation of vitamin-D weighted exposures
274
275	REAL(wp), DIMENSION(0:35,0:9,0:90) :: radiance_lookup_table = 0.0_wp !< radiance lookup table
276
277
278	PRIVATE
279
280	!
281	!-- INTERFACES that must be available to other modules (alphabetical order)
282	PUBLIC bio_3d_data_averaging, bio_calculate_mrt_grid, bio_calculate_thermal_index_maps, &
283	bio_calc_ipt, bio_check_data_output, bio_check_parameters, &
284	bio_data_output_2d, bio_data_output_3d, bio_define_netcdf_grid, &
285	bio_get_thermal_index_input_ij, bio_header, bio_init, bio_init_checks, bio_nmrtbl, &
286	bio_parin, bio_rrd_global, bio_rrd_local, bio_wrd_global, bio_wrd_local, thermal_comfort
287	!
288	!-- UVEM PUBLIC variables and methods
289	PUBLIC bio_calculate_uv_exposure, uv_exposure
290
291	!
292	!-- PALM interfaces:
293	!
294	!-- 3D averaging for HTCM _INPUT_ variables
295	INTERFACE bio_3d_data_averaging
296	MODULE PROCEDURE bio_3d_data_averaging
297	END INTERFACE bio_3d_data_averaging
298	!
299	!-- Calculate mtr from rtm fluxes and assign into 2D grid
300	INTERFACE bio_calculate_mrt_grid
301	MODULE PROCEDURE bio_calculate_mrt_grid
302	END INTERFACE bio_calculate_mrt_grid
303	!
304	!-- Calculate static thermal indices PT, UTCI and/or PET
305	INTERFACE bio_calculate_thermal_index_maps
306	MODULE PROCEDURE bio_calculate_thermal_index_maps
307	END INTERFACE bio_calculate_thermal_index_maps
308	!
309	!-- Calculate the dynamic index iPT (to be caled by the agent model)
310	INTERFACE bio_calc_ipt
311	MODULE PROCEDURE bio_calc_ipt
312	END INTERFACE bio_calc_ipt
313	!
314	!-- Data output checks for 2D/3D data to be done in check_parameters
315	INTERFACE bio_check_data_output
316	MODULE PROCEDURE bio_check_data_output
317	END INTERFACE bio_check_data_output
318	!
319	!-- Input parameter checks to be done in check_parameters
320	INTERFACE bio_check_parameters
321	MODULE PROCEDURE bio_check_parameters
322	END INTERFACE bio_check_parameters
323	!
324	!-- Data output of 2D quantities
325	INTERFACE bio_data_output_2d
326	MODULE PROCEDURE bio_data_output_2d
327	END INTERFACE bio_data_output_2d
328	!
329	!-- no 3D data, thus, no averaging of 3D data, removed
330	INTERFACE bio_data_output_3d
331	MODULE PROCEDURE bio_data_output_3d
332	END INTERFACE bio_data_output_3d
333	!
334	!-- Definition of data output quantities
335	INTERFACE bio_define_netcdf_grid
336	MODULE PROCEDURE bio_define_netcdf_grid
337	END INTERFACE bio_define_netcdf_grid
338	!
339	!-- Obtains all relevant input values to estimate local thermal comfort/stress
340	INTERFACE bio_get_thermal_index_input_ij
341	MODULE PROCEDURE bio_get_thermal_index_input_ij
342	END INTERFACE bio_get_thermal_index_input_ij
343	!
344	!-- Output of information to the header file
345	INTERFACE bio_header
346	MODULE PROCEDURE bio_header
347	END INTERFACE bio_header
348	!
349	!-- Initialization actions
350	INTERFACE bio_init
351	MODULE PROCEDURE bio_init
352	END INTERFACE bio_init
353	!
354	!-- Initialization checks
355	INTERFACE bio_init_checks
356	MODULE PROCEDURE bio_init_checks
357	END INTERFACE bio_init_checks
358	!
359	!-- Reading of NAMELIST parameters
360	INTERFACE bio_parin
361	MODULE PROCEDURE bio_parin
362	END INTERFACE bio_parin
363	!
364	!-- Read global restart parameters
365	INTERFACE bio_rrd_global
366	MODULE PROCEDURE bio_rrd_global_ftn
367	MODULE PROCEDURE bio_rrd_global_mpi
368	END INTERFACE bio_rrd_global
369	!
370	!-- Read local restart parameters
371	INTERFACE bio_rrd_local
372	MODULE PROCEDURE bio_rrd_local_ftn
373	MODULE PROCEDURE bio_rrd_local_mpi
374	END INTERFACE bio_rrd_local
375	!
376	!-- Write global restart parameters
377	INTERFACE bio_wrd_global
378	MODULE PROCEDURE bio_wrd_global
379	END INTERFACE bio_wrd_global
380	!
381	!-- Write local restart parameters
382	INTERFACE bio_wrd_local
383	MODULE PROCEDURE bio_wrd_local
384	END INTERFACE bio_wrd_local
385	!
386	!-- Calculate UV exposure grid
387	INTERFACE bio_calculate_uv_exposure
388	MODULE PROCEDURE bio_calculate_uv_exposure
389	END INTERFACE bio_calculate_uv_exposure
390
391	CONTAINS
392
393
394	!--------------------------------------------------------------------------------------------------!
395	! Description:
396	! ------------
397	!> Sum up and time-average biom input quantities as well as allocate the array necessary for storing
398	!> the average.
399	!> There is a considerable difference to the 3d_data_averaging subroutines used by other modules:
400	!> For the thermal indices, the module needs to average the input conditions, not the result!
401	!--------------------------------------------------------------------------------------------------!
402	SUBROUTINE bio_3d_data_averaging( mode, variable )
403
404	IMPLICIT NONE
405
406	CHARACTER (LEN=*) :: mode !< Averaging mode: allocate, sum, or average
407	CHARACTER (LEN=*) :: variable !< The variable in question
408
409	INTEGER(iwp) :: i !< Running index, x-dir
410	INTEGER(iwp) :: j !< Running index, y-dir
411	INTEGER(iwp) :: k !< Running index, z-dir
412
413
414	IF ( mode == 'allocate' ) THEN
415
416	SELECT CASE ( TRIM( variable ) )
417
418	CASE ( 'bio_mrt' )
419
420	IF ( .NOT. ALLOCATED( mrt_av_grid ) ) THEN
421	ALLOCATE( mrt_av_grid(nmrtbl) )
422	ENDIF
423	mrt_av_grid = 0.0_wp
424	do_average_mrt = .FALSE. !< Overwrite if that was enabled somehow
425
426
427	CASE ( 'bio_perct', 'bio_utci', 'bio_pet', 'bio_mrt' )
428
429	!
430	!-- Averaging, as well as the allocation of the required grids must be done only once,
431	!-- independent of for how many thermal indices averaged output is desired.
432	!-- Therefore we need to memorize which index is the one that controls the averaging
433	!-- (what must be the first thermal index called).
434	!-- Indices are in unknown order as depending on the input file, determine first index to
435	!-- average und update only once.
436	!
437	!-- Only proceed here if this was not done for any index before. This is done only once
438	!-- during the whole model run.
439	IF ( .NOT. average_trigger_perct .AND. &
440	.NOT. average_trigger_utci .AND. &
441	.NOT. average_trigger_pet .AND. &
442	.NOT. average_trigger_mrt ) THEN
443	!
444	!-- Memorize the first index called to control averaging
445	IF ( TRIM( variable ) == 'bio_perct*' ) THEN
446	average_trigger_perct = .TRUE.
447	ENDIF
448	IF ( TRIM( variable ) == 'bio_utci*' ) THEN
449	average_trigger_utci = .TRUE.
450	ENDIF
451	IF ( TRIM( variable ) == 'bio_pet*' ) THEN
452	average_trigger_pet = .TRUE.
453	ENDIF
454	IF ( TRIM( variable ) == 'bio_mrt*' ) THEN
455	average_trigger_mrt = .TRUE.
456	ENDIF
457	ENDIF
458	!
459	!-- Allocation of the input _av grids was moved to the "sum" section to make sure averaging
460	!-- is only done once!
461
462	CASE ( 'uvem_vitd3dose*' )
463
464	IF ( .NOT. ALLOCATED( vitd3_dose ) ) THEN
465	ALLOCATE( vitd3_dose(nysg:nyng,nxlg:nxrg) )
466	ENDIF
467	vitd3_dose = 0.0_wp
468
469	CASE DEFAULT
470	CONTINUE
471
472	END SELECT
473
474	ELSEIF ( mode == 'sum' ) THEN
475
476	SELECT CASE ( TRIM( variable ) )
477
478	CASE ( 'bio_mrt' )
479	!
480	!-- Consider the case 'bio_mrt' is called after some thermal index. In that case
481	! do_average_mrt will be .TRUE. leading to a double-averaging.
482	IF ( .NOT. do_average_mrt .AND. ALLOCATED( mrt_av_grid ) ) THEN
483
484	IF ( mrt_include_sw ) THEN
485	mrt_av_grid(:) = mrt_av_grid(:) + &
486	( ( human_absorb * mrtinsw(:) + &
487	mrtinlw(:) ) / ( human_emiss * sigma_sb ) )**.25_wp - degc_to_k
488	ELSE
489	mrt_av_grid(:) = mrt_av_grid(:) + &
490	( mrtinlw(:) / ( human_emiss * sigma_sb ) )**.25_wp - degc_to_k
491	ENDIF
492	ENDIF
493
494	CASE ( 'bio_perct', 'bio_utci', 'bio_pet', 'bio_mrt' )
495	!
496	!-- Only continue if the current index is the one to trigger the input averaging, see
497	!-- above.
498	IF ( average_trigger_perct .AND. TRIM( variable ) /= 'bio_perct*') RETURN
499	IF ( average_trigger_utci .AND. TRIM( variable ) /= 'bio_utci*' ) RETURN
500	IF ( average_trigger_pet .AND. TRIM( variable ) /= 'bio_pet*' ) RETURN
501	IF ( average_trigger_mrt .AND. TRIM( variable ) /= 'bio_mrt*' ) RETURN
502	!
503	!-- Now memorize which of the input grids are not averaged by other modules. Set averaging
504	!-- switch to .TRUE. and allocate the respective grid in that case.
505	IF ( .NOT. ALLOCATED( pt_av ) ) THEN !< if not averaged by other module
506	ALLOCATE( pt_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
507	do_average_theta = .TRUE. !< memorize, that bio is responsible
508	pt_av = 0.0_wp
509	ENDIF
510	IF ( ALLOCATED( pt_av ) .AND. do_average_theta ) THEN
511	DO i = nxl, nxr
512	DO j = nys, nyn
513	DO k = nzb, nzt+1
514	pt_av(k,j,i) = pt_av(k,j,i) + pt(k,j,i)
515	ENDDO
516	ENDDO
517	ENDDO
518	ENDIF
519
520	IF ( .NOT. ALLOCATED( q_av ) ) THEN
521	ALLOCATE( q_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
522	do_average_q = .TRUE.
523	q_av = 0.0_wp
524	ENDIF
525	IF ( ALLOCATED( q_av ) .AND. do_average_q ) THEN
526	DO i = nxl, nxr
527	DO j = nys, nyn
528	DO k = nzb, nzt+1
529	q_av(k,j,i) = q_av(k,j,i) + q(k,j,i)
530	ENDDO
531	ENDDO
532	ENDDO
533	ENDIF
534
535	!
536	!-- u_av, v_av and w_av are always allocated
537	IF ( .NOT. ALLOCATED( u_av ) ) THEN
538	ALLOCATE( u_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
539	do_average_u = .TRUE.
540	u_av = 0.0_wp
541	ENDIF
542	IF ( ALLOCATED( u_av ) .AND. do_average_u ) THEN
543	DO i = nxlg, nxrg !< yes, ghost points are required here!
544	DO j = nysg, nyng
545	DO k = nzb, nzt+1
546	u_av(k,j,i) = u_av(k,j,i) + u(k,j,i)
547	ENDDO
548	ENDDO
549	ENDDO
550	ENDIF
551
552	IF ( .NOT. ALLOCATED( v_av ) ) THEN
553	ALLOCATE( v_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
554	do_average_v = .TRUE.
555	v_av = 0.0_wp
556	ENDIF
557	IF ( ALLOCATED( v_av ) .AND. do_average_v ) THEN
558	DO i = nxlg, nxrg !< yes, ghost points are required here!
559	DO j = nysg, nyng
560	DO k = nzb, nzt+1
561	v_av(k,j,i) = v_av(k,j,i) + v(k,j,i)
562	ENDDO
563	ENDDO
564	ENDDO
565	ENDIF
566
567	IF ( .NOT. ALLOCATED( w_av ) ) THEN
568	ALLOCATE( w_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
569	do_average_w = .TRUE.
570	w_av = 0.0_wp
571	ENDIF
572	IF ( ALLOCATED( w_av ) .AND. do_average_w ) THEN
573	DO i = nxlg, nxrg !< yes, ghost points are required here!
574	DO j = nysg, nyng
575	DO k = nzb, nzt+1
576	w_av(k,j,i) = w_av(k,j,i) + w(k,j,i)
577	ENDDO
578	ENDDO
579	ENDDO
580	ENDIF
581
582	IF ( .NOT. ALLOCATED( mrt_av_grid ) ) THEN
583	ALLOCATE( mrt_av_grid(nmrtbl) )
584	do_average_mrt = .TRUE.
585	mrt_av_grid = 0.0_wp
586	ENDIF
587	IF ( ALLOCATED( mrt_av_grid ) .AND. do_average_mrt ) THEN
588
589	IF ( mrt_include_sw ) THEN
590	mrt_av_grid(:) = mrt_av_grid(:) + &
591	( ( human_absorb * mrtinsw(:) + &
592	mrtinlw(:) ) / &
593	( human_emiss * sigma_sb ) )**0.25_wp - degc_to_k
594	ELSE
595	mrt_av_grid(:) = mrt_av_grid(:) + &
596	( mrtinlw(:) / &
597	( human_emiss * sigma_sb ) )**0.25_wp - degc_to_k
598	ENDIF
599	ENDIF
600	!
601	!-- This is a cumulated dose. No mode == 'average' for this quantity.
602	CASE ( 'uvem_vitd3dose*' )
603	IF ( ALLOCATED( vitd3_dose ) ) THEN
604	DO i = nxlg, nxrg
605	DO j = nysg, nyng
606	vitd3_dose(j,i) = vitd3_dose(j,i) + vitd3_exposure(j,i)
607	ENDDO
608	ENDDO
609	ENDIF
610
611	CASE DEFAULT
612	CONTINUE
613
614	END SELECT
615
616	ELSEIF ( mode == 'average' ) THEN
617
618	SELECT CASE ( TRIM( variable ) )
619
620	CASE ( 'bio_mrt' )
621	!
622	!-- Consider the case 'bio_mrt' is called after some thermal index. In that case
623	!-- do_average_mrt will be .TRUE. leading to a double-averaging.
624	IF ( .NOT. do_average_mrt .AND. ALLOCATED( mrt_av_grid ) ) THEN
625	mrt_av_grid(:) = mrt_av_grid(:) / REAL( average_count_3d, KIND=wp )
626	ENDIF
627
628	CASE ( 'bio_perct', 'bio_utci', 'bio_pet', 'bio_mrt' )
629	!
630	!-- Only continue if update index, see above
631	IF ( average_trigger_perct .AND. &
632	TRIM( variable ) /= 'bio_perct*' ) RETURN
633	IF ( average_trigger_utci .AND. &
634	TRIM( variable ) /= 'bio_utci*' ) RETURN
635	IF ( average_trigger_pet .AND. &
636	TRIM( variable ) /= 'bio_pet*' ) RETURN
637	IF ( average_trigger_mrt .AND. &
638	TRIM( variable ) /= 'bio_mrt*' ) RETURN
639
640	IF ( ALLOCATED( pt_av ) .AND. do_average_theta ) THEN
641	DO i = nxl, nxr
642	DO j = nys, nyn
643	DO k = nzb, nzt+1
644	pt_av(k,j,i) = pt_av(k,j,i) / REAL( average_count_3d, KIND = wp )
645	ENDDO
646	ENDDO
647	ENDDO
648	ENDIF
649
650	IF ( ALLOCATED( q_av ) .AND. do_average_q ) THEN
651	DO i = nxl, nxr
652	DO j = nys, nyn
653	DO k = nzb, nzt+1
654	q_av(k,j,i) = q_av(k,j,i) / REAL( average_count_3d, KIND = wp )
655	ENDDO
656	ENDDO
657	ENDDO
658	ENDIF
659
660	IF ( ALLOCATED( u_av ) .AND. do_average_u ) THEN
661	DO i = nxlg, nxrg !< yes, ghost points are required here!
662	DO j = nysg, nyng
663	DO k = nzb, nzt+1
664	u_av(k,j,i) = u_av(k,j,i) / REAL( average_count_3d, KIND = wp )
665	ENDDO
666	ENDDO
667	ENDDO
668	ENDIF
669
670	IF ( ALLOCATED( v_av ) .AND. do_average_v ) THEN
671	DO i = nxlg, nxrg
672	DO j = nysg, nyng
673	DO k = nzb, nzt+1
674	v_av(k,j,i) = v_av(k,j,i) / REAL( average_count_3d, KIND = wp )
675	ENDDO
676	ENDDO
677	ENDDO
678	ENDIF
679
680	IF ( ALLOCATED( w_av ) .AND. do_average_w ) THEN
681	DO i = nxlg, nxrg
682	DO j = nysg, nyng
683	DO k = nzb, nzt+1
684	w_av(k,j,i) = w_av(k,j,i) / REAL( average_count_3d, KIND = wp )
685	ENDDO
686	ENDDO
687	ENDDO
688	ENDIF
689
690	IF ( ALLOCATED( mrt_av_grid ) .AND. do_average_mrt ) THEN
691	mrt_av_grid(:) = mrt_av_grid(:) / REAL( average_count_3d, KIND = wp )
692	ENDIF
693
694	!
695	!-- No averaging for UVEM SINce we are calculating a dose (only sum is calculated and saved to
696	!-- av.nc file)
697	END SELECT
698
699	ENDIF
700
701
702	END SUBROUTINE bio_3d_data_averaging
703
704
705
706	!--------------------------------------------------------------------------------------------------!
707	! Description:
708	! ------------
709	!> Check data output for biometeorology model
710	!--------------------------------------------------------------------------------------------------!
711	SUBROUTINE bio_check_data_output( var, unit, i, j, ilen, k )
712
713	USE control_parameters, &
714	ONLY: data_output, message_string
715
716	IMPLICIT NONE
717
718	CHARACTER (LEN=*) :: unit !< The unit for the variable var
719	CHARACTER (LEN=*) :: var !< The variable in question
720
721	INTEGER(iwp), INTENT(IN) :: i !< Current element of data_output
722	INTEGER(iwp), INTENT(IN) :: j !< Average quantity? 0 = no, 1 = yes
723	INTEGER(iwp), INTENT(IN) :: ilen !< Length of current entry in data_output
724	INTEGER(iwp), INTENT(IN) :: k !< Output is xy mode? 0 = no, 1 = yes
725
726	SELECT CASE ( TRIM( var ) )
727	!
728	!-- Allocate a temporary array with the desired output dimensions.
729	!-- Arrays for time-averaged thermal indices are also allocated here because they are not running
730	!-- through the standard averaging procedure in bio_3d_data_averaging as the values of the
731	!-- averaged thermal indices are derived in a SINgle step based on priorly averaged arrays (see
732	!-- bio_calculate_thermal_index_maps).
733	CASE ( 'bio_mrt', 'bio_mrt*' )
734	unit = 'degree_C'
735	thermal_comfort = .TRUE. !< enable thermal_comfort if user forgot to do so
736	IF ( .NOT. ALLOCATED( tmrt_grid ) ) THEN
737	ALLOCATE( tmrt_grid (nys:nyn,nxl:nxr) )
738	tmrt_grid = REAL( bio_fill_value, KIND = wp )
739	ENDIF
740	IF ( TRIM( var ) == 'bio_mrt*' ) THEN
741	do_calculate_mrt2d = .TRUE.
742	END IF
743
744	CASE ( 'bio_perct*' )
745	unit = 'degree_C'
746	thermal_comfort = .TRUE.
747	IF ( j == 0 ) THEN !< if instantaneous input
748	do_calculate_perct = .TRUE.
749	IF ( .NOT. ALLOCATED( perct ) ) THEN
750	ALLOCATE( perct (nys:nyn,nxl:nxr) )
751	perct = REAL( bio_fill_value, KIND = wp )
752	ENDIF
753	ELSE !< if averaged input
754	do_calculate_perct_av = .TRUE.
755	IF ( .NOT. ALLOCATED( perct_av ) ) THEN
756	ALLOCATE( perct_av (nys:nyn,nxl:nxr) )
757	perct_av = REAL( bio_fill_value, KIND = wp )
758	ENDIF
759	ENDIF
760
761	CASE ( 'bio_utci*' )
762	unit = 'degree_C'
763	thermal_comfort = .TRUE.
764	IF ( j == 0 ) THEN
765	do_calculate_utci = .TRUE.
766	IF ( .NOT. ALLOCATED( utci ) ) THEN
767	ALLOCATE( utci (nys:nyn,nxl:nxr) )
768	utci = REAL( bio_fill_value, KIND = wp )
769	ENDIF
770	ELSE
771	do_calculate_utci_av = .TRUE.
772	IF ( .NOT. ALLOCATED( utci_av ) ) THEN
773	ALLOCATE( utci_av (nys:nyn,nxl:nxr) )
774	utci_av = REAL( bio_fill_value, KIND = wp )
775	ENDIF
776	ENDIF
777
778	CASE ( 'bio_pet*' )
779	unit = 'degree_C'
780	thermal_comfort = .TRUE.
781	IF ( j == 0 ) THEN
782	do_calculate_pet = .TRUE.
783	IF ( .NOT. ALLOCATED( pet ) ) THEN
784	ALLOCATE( pet (nys:nyn,nxl:nxr) )
785	pet = REAL( bio_fill_value, KIND = wp )
786	ENDIF
787	ELSE
788	do_calculate_pet_av = .TRUE.
789	IF ( .NOT. ALLOCATED( pet_av ) ) THEN
790	ALLOCATE( pet_av (nys:nyn,nxl:nxr) )
791	pet_av = REAL( bio_fill_value, KIND = wp )
792	ENDIF
793	ENDIF
794
795
796	CASE ( 'uvem_vitd3*' )
797	! IF ( .NOT. uv_exposure ) THEN
798	! message_string = 'output of "' // TRIM( var ) // '" requi' // &
799	! 'res a namelist &uvexposure_par'
800	! CALL message( 'uvem_check_data_output', 'UV0001', 1, 2, 0, 6, 0 )
801	! ENDIF
802	IF ( k == 0 .OR. data_output(i)(ilen-2:ilen) /= '_xy' ) THEN
803	message_string = 'illegal value for data_output: "' // &
804	TRIM( var ) // '" & only 2d-horizontal ' // &
805	'cross sections are allowed for this value'
806	CALL message( 'check_parameters', 'PA0111', 1, 2, 0, 6, 0 )
807	ENDIF
808	unit = 'IU/s'
809	IF ( .NOT. ALLOCATED( vitd3_exposure ) ) THEN
810	ALLOCATE( vitd3_exposure(nysg:nyng,nxlg:nxrg) )
811	ENDIF
812	vitd3_exposure = 0.0_wp
813
814	CASE ( 'uvem_vitd3dose*' )
815	! IF ( .NOT. uv_exposure ) THEN
816	! message_string = 'output of "' // TRIM( var ) // '" requi' // &
817	! 'res a namelist &uvexposure_par'
818	! CALL message( 'uvem_check_data_output', 'UV0001', 1, 2, 0, 6, 0 )
819	! ENDIF
820	IF ( k == 0 .OR. data_output(i)(ilen-2:ilen) /= '_xy' ) THEN
821	message_string = 'illegal value for data_output: "' // &
822	TRIM( var ) // '" & only 2d-horizontal ' // &
823	'cross sections are allowed for this value'
824	CALL message( 'check_parameters', 'PA0111', 1, 2, 0, 6, 0 )
825	ENDIF
826	unit = 'IU/av-h'
827	IF ( .NOT. ALLOCATED( vitd3_dose ) ) THEN
828	ALLOCATE( vitd3_dose(nysg:nyng,nxlg:nxrg) )
829	ENDIF
830	vitd3_dose = 0.0_wp
831
832	CASE DEFAULT
833	unit = 'illegal'
834
835	END SELECT
836
837	!
838	!-- Further checks if thermal comfort output is desired.
839	IF ( thermal_comfort .AND. unit == 'degree_C' ) THEN
840	!
841	!-- Break if required modules "radiation" is not available.
842	IF ( .NOT. radiation ) THEN
843	message_string = 'output of "' // TRIM( var ) // '" require' // 's radiation = .TRUE.'
844	CALL message( 'check_parameters', 'PA0509', 1, 2, 0, 6, 0 )
845	unit = 'illegal'
846	ENDIF
847	!
848	!-- All "thermal_comfort" outputs except from 'bio_mrt' will also need humidity input. Check
849	!-- also for that.
850	IF ( TRIM( var ) /= 'bio_mrt' ) THEN
851	IF ( .NOT. humidity ) THEN
852	message_string = 'The estimation of thermal comfort ' // &
853	'requires air humidity information, but ' // &
854	'humidity module is disabled!'
855	CALL message( 'check_parameters', 'PA0561', 1, 2, 0, 6, 0 )
856	unit = 'illegal'
857	ENDIF
858	ENDIF
859
860
861	ENDIF
862
863	END SUBROUTINE bio_check_data_output
864
865	!--------------------------------------------------------------------------------------------------!
866	! Description:
867	! ------------
868	!> Check parameters routine for biom module
869	!> Currently unused but might come in handy for future checks?
870	!--------------------------------------------------------------------------------------------------!
871	SUBROUTINE bio_check_parameters
872
873
874	IMPLICIT NONE
875
876
877	END SUBROUTINE bio_check_parameters
878
879
880	!--------------------------------------------------------------------------------------------------!
881	! Description:
882	! ------------
883	!> Subroutine defining 2D output variables
884	!> data_output_2d 1188ff
885	!--------------------------------------------------------------------------------------------------!
886	SUBROUTINE bio_data_output_2d( av, variable, found, grid, local_pf, two_d, nzb_do, nzt_do)
887
888
889	USE kinds
890
891
892	IMPLICIT NONE
893	!
894	!-- Input variables
895	CHARACTER (LEN=*), INTENT(IN) :: variable !< Char identifier to select var for output
896	INTEGER(iwp), INTENT(IN) :: av !< Use averaged data? 0 = no, 1 = yes?
897	INTEGER(iwp), INTENT(IN) :: nzb_do !< Unused. 2D. nz bottom to nz top
898	INTEGER(iwp), INTENT(IN) :: nzt_do !< Unused.
899	!
900	!-- Output variables
901	CHARACTER (LEN=*), INTENT(OUT) :: grid !< Grid type (always "zu1" for biom)
902
903	LOGICAL, INTENT(OUT) :: found !< Output found?
904	LOGICAL, INTENT(OUT) :: two_d !< Flag parameter that indicates 2D variables,
905	!< horizontal cross sections, must be .TRUE. for thermal indices and uv
906	REAL(wp), DIMENSION(nxl:nxr,nys:nyn,nzb_do:nzt_do) :: local_pf !< Temp. result grid to return
907	!
908	!-- Internal variables
909	INTEGER(iwp) :: i !< Running index, x-dir
910	INTEGER(iwp) :: j !< Running index, y-dir
911	INTEGER(iwp) :: k !< Running index, z-dir
912	INTEGER(iwp) :: l !< Running index, radiation grid
913
914
915	found = .TRUE.
916	local_pf = bio_fill_value
917
918	SELECT CASE ( TRIM( variable ) )
919
920
921	CASE ( 'bio_mrt_xy' )
922	grid = 'zu1'
923	two_d = .FALSE. !< can be calculated for several levels
924	local_pf = REAL( bio_fill_value, KIND = wp )
925	DO l = 1, nmrtbl
926	i = mrtbl(ix,l)
927	j = mrtbl(iy,l)
928	k = mrtbl(iz,l)
929	IF ( k < nzb_do .OR. k > nzt_do .OR. j < nys .OR. &
930	j > nyn .OR. i < nxl .OR. i > nxr ) CYCLE
931	IF ( av == 0 ) THEN
932	IF ( mrt_include_sw ) THEN
933	local_pf(i,j,k) = ( ( human_absorb * mrtinsw(l) + &
934	mrtinlw(l) ) / &
935	( human_emiss * sigma_sb ) )**0.25_wp - degc_to_k
936	ELSE
937	local_pf(i,j,k) = ( mrtinlw(l) / &
938	( human_emiss * sigma_sb ) )**0.25_wp - degc_to_k
939	ENDIF
940	ELSE
941	local_pf(i,j,k) = mrt_av_grid(l)
942	ENDIF
943	ENDDO
944
945	CASE ( 'bio_mrt*_xy' ) ! 2d-array
946	grid = 'zu1'
947	two_d = .TRUE.
948	IF ( av == 0 ) THEN
949	DO i = nxl, nxr
950	DO j = nys, nyn
951	local_pf(i,j,nzb+1) = tmrt_grid(j,i)
952	ENDDO
953	ENDDO
954	ELSE
955	DO i = nxl, nxr
956	DO j = nys, nyn
957	local_pf(i,j,nzb+1) = tmrt_av_grid(j,i)
958	ENDDO
959	ENDDO
960	ENDIF
961
962
963	CASE ( 'bio_perct*_xy' ) ! 2d-array
964	grid = 'zu1'
965	two_d = .TRUE.
966	IF ( av == 0 ) THEN
967	DO i = nxl, nxr
968	DO j = nys, nyn
969	local_pf(i,j,nzb+1) = perct(j,i)
970	ENDDO
971	ENDDO
972	ELSE
973	DO i = nxl, nxr
974	DO j = nys, nyn
975	local_pf(i,j,nzb+1) = perct_av(j,i)
976	ENDDO
977	ENDDO
978	ENDIF
979
980
981	CASE ( 'bio_utci*_xy' ) ! 2d-array
982	grid = 'zu1'
983	two_d = .TRUE.
984	IF ( av == 0 ) THEN
985	DO i = nxl, nxr
986	DO j = nys, nyn
987	local_pf(i,j,nzb+1) = utci(j,i)
988	ENDDO
989	ENDDO
990	ELSE
991	DO i = nxl, nxr
992	DO j = nys, nyn
993	local_pf(i,j,nzb+1) = utci_av(j,i)
994	ENDDO
995	ENDDO
996	ENDIF
997
998
999	CASE ( 'bio_pet*_xy' ) ! 2d-array
1000	grid = 'zu1'
1001	two_d = .TRUE.
1002	IF ( av == 0 ) THEN
1003	DO i = nxl, nxr
1004	DO j = nys, nyn
1005	local_pf(i,j,nzb+1) = pet(j,i)
1006	ENDDO
1007	ENDDO
1008	ELSE
1009	DO i = nxl, nxr
1010	DO j = nys, nyn
1011	local_pf(i,j,nzb+1) = pet_av(j,i)
1012	ENDDO
1013	ENDDO
1014	ENDIF
1015
1016	!
1017	!-- Before data is transfered to local_pf, transfer is in 2D dummy variable and exchange ghost
1018	!-- points therein. However, at this point this is only required for instantaneous arrays,
1019	!-- time-averaged quantities are already exchanged.
1020	CASE ( 'uvem_vitd3*_xy' ) ! 2d-array
1021	IF ( av == 0 ) THEN
1022	DO i = nxl, nxr
1023	DO j = nys, nyn
1024	local_pf(i,j,nzb+1) = vitd3_exposure(j,i)
1025	ENDDO
1026	ENDDO
1027	ENDIF
1028
1029	two_d = .TRUE.
1030	grid = 'zu1'
1031
1032	CASE ( 'uvem_vitd3dose*_xy' ) ! 2d-array
1033	IF ( av == 1 ) THEN
1034	DO i = nxl, nxr
1035	DO j = nys, nyn
1036	local_pf(i,j,nzb+1) = vitd3_dose(j,i)
1037	ENDDO
1038	ENDDO
1039	ENDIF
1040
1041	two_d = .TRUE.
1042	grid = 'zu1'
1043
1044
1045	CASE DEFAULT
1046	found = .FALSE.
1047	grid = 'none'
1048
1049	END SELECT
1050
1051
1052	END SUBROUTINE bio_data_output_2d
1053
1054
1055	!--------------------------------------------------------------------------------------------------!
1056	! Description:
1057	! ------------
1058	!> Subroutine defining 3D output variables (dummy, always 2d!)
1059	!> data_output_3d 709ff
1060	!--------------------------------------------------------------------------------------------------!
1061	SUBROUTINE bio_data_output_3d( av, variable, found, local_pf, nzb_do, nzt_do )
1062
1063	USE indices
1064
1065	USE kinds
1066
1067
1068	IMPLICIT NONE
1069	!
1070	!-- Input variables
1071	CHARACTER (LEN=*), INTENT(IN) :: variable !< Char identifier to select var for output
1072
1073	INTEGER(iwp), INTENT(IN) :: av !< Use averaged data? 0 = no, 1 = yes?
1074	INTEGER(iwp), INTENT(IN) :: nzb_do !< Unused. 2D. nz bottom to nz top
1075	INTEGER(iwp), INTENT(IN) :: nzt_do !< Unused.
1076	!
1077	!-- Output variables
1078	LOGICAL, INTENT(OUT) :: found !< Output found?
1079
1080	REAL(sp), DIMENSION(nxl:nxr,nys:nyn,nzb_do:nzt_do) :: local_pf !< Temp. result grid to return
1081	!
1082	!-- Internal variables
1083	INTEGER(iwp) :: l !< Running index, radiation grid
1084	INTEGER(iwp) :: i !< Running index, x-dir
1085	INTEGER(iwp) :: j !< Running index, y-dir
1086	INTEGER(iwp) :: k !< Running index, z-dir
1087
1088	! REAL(wp) :: mrt !< Buffer for mean radiant temperature
1089
1090	found = .TRUE.
1091
1092	SELECT CASE ( TRIM( variable ) )
1093
1094	CASE ( 'bio_mrt' )
1095	local_pf = REAL( bio_fill_value, KIND = sp )
1096	DO l = 1, nmrtbl
1097	i = mrtbl(ix,l)
1098	j = mrtbl(iy,l)
1099	k = mrtbl(iz,l)
1100	IF ( k < nzb_do .OR. k > nzt_do .OR. j < nys .OR. &
1101	j > nyn .OR. i < nxl .OR. i > nxr ) CYCLE
1102	IF ( av == 0 ) THEN
1103	IF ( mrt_include_sw ) THEN
1104	local_pf(i,j,k) = REAL( ( ( human_absorb * mrtinsw(l) + &
1105	mrtinlw(l) ) / &
1106	( human_emiss * sigma_sb ) )**0.25_wp - degc_to_k, &
1107	KIND = sp )
1108	ELSE
1109	local_pf(i,j,k) = REAL( ( mrtinlw(l) / &
1110	( human_emiss * sigma_sb ) )**0.25_wp - degc_to_k, &
1111	KIND = sp )
1112	ENDIF
1113	ELSE
1114	local_pf(i,j,k) = REAL( mrt_av_grid(l), KIND = sp )
1115	ENDIF
1116	ENDDO
1117
1118	CASE DEFAULT
1119	found = .FALSE.
1120
1121	END SELECT
1122
1123	END SUBROUTINE bio_data_output_3d
1124
1125	!--------------------------------------------------------------------------------------------------!
1126	! Description:
1127	! ------------
1128	!> Subroutine defining appropriate grid for netcdf variables.
1129	!> It is called out from subroutine netcdf_interface_mod.
1130	!> netcdf_interface_mod 918ff
1131	!--------------------------------------------------------------------------------------------------!
1132	SUBROUTINE bio_define_netcdf_grid( var, found, grid_x, grid_y, grid_z )
1133
1134	IMPLICIT NONE
1135	!
1136	!-- Input variables
1137	CHARACTER (LEN=*), INTENT(IN) :: var !< Name of output variable
1138	!
1139	!-- Output variables
1140	CHARACTER (LEN=*), INTENT(OUT) :: grid_x !< x grid of output variable
1141	CHARACTER (LEN=*), INTENT(OUT) :: grid_y !< y grid of output variable
1142	CHARACTER (LEN=*), INTENT(OUT) :: grid_z !< z grid of output variable
1143
1144	LOGICAL, INTENT(OUT) :: found !< Flag if output var is found
1145	!
1146	!-- Local variables
1147	INTEGER(iwp) :: l !< Length of the var array
1148
1149	LOGICAL :: is2d !< Var is 2d?
1150
1151	found = .FALSE.
1152	grid_x = 'none'
1153	grid_y = 'none'
1154	grid_z = 'none'
1155
1156	l = MAX( 2, LEN_TRIM( var ) )
1157	is2d = ( var(l-1:l) == 'xy' )
1158
1159	IF ( var(1:4) == 'bio_' ) THEN
1160	found = .TRUE.
1161	grid_x = 'x'
1162	grid_y = 'y'
1163	grid_z = 'zu'
1164	IF ( is2d .AND. var(1:7) /= 'bio_mrt' ) grid_z = 'zu1'
1165	ENDIF
1166
1167	IF ( is2d .AND. var(1:4) == 'uvem' ) THEN
1168	grid_x = 'x'
1169	grid_y = 'y'
1170	grid_z = 'zu1'
1171	ENDIF
1172
1173	END SUBROUTINE bio_define_netcdf_grid
1174
1175	!--------------------------------------------------------------------------------------------------!
1176	! Description:
1177	! ------------
1178	!> Header output for biom module
1179	!> header 982
1180	!--------------------------------------------------------------------------------------------------!
1181	SUBROUTINE bio_header( io )
1182
1183	IMPLICIT NONE
1184	!
1185	!-- Input variables
1186	INTEGER(iwp), INTENT(IN) :: io !< Unit of the output file
1187	!
1188	!-- Internal variables
1189	CHARACTER (LEN=86) :: output_height_chr !< String for output height
1190
1191	WRITE( output_height_chr, '(F8.1,7X)' ) bio_output_height
1192	!
1193	!-- Write biom header
1194	WRITE( io, 1 )
1195	WRITE( io, 2 ) TRIM( output_height_chr )
1196	WRITE( io, 3 ) TRIM( ACHAR( bio_cell_level ) )
1197
1198	1 FORMAT (//' Human thermal comfort module information:'/ &
1199	' ------------------------------'/)
1200	2 FORMAT (' --> All indices calculated for a height of (m): ', A )
1201	3 FORMAT (' --> This corresponds to cell level : ', A )
1202
1203	END SUBROUTINE bio_header
1204
1205
1206	!--------------------------------------------------------------------------------------------------!
1207	! Description:
1208	! ------------
1209	!> Initialization of the HTCM
1210	!> init_3d_model 1987ff
1211	!--------------------------------------------------------------------------------------------------!
1212	SUBROUTINE bio_init
1213
1214	USE netcdf_data_input_mod, &
1215	ONLY: netcdf_data_input_uvem
1216
1217	IMPLICIT NONE
1218	!
1219	!-- Internal vriables
1220	REAL ( wp ) :: height !< current height in meters
1221
1222	IF ( debug_output ) CALL debug_message( 'bio_init', 'start' )
1223	!
1224	!-- Determine cell level corresponding to 1.1 m above ground level (gravimetric center of sample
1225	!-- human)
1226
1227	bio_cell_level = 0_iwp
1228	bio_output_height = 0.5_wp * dz(1)
1229	height = 0.0_wp
1230
1231	bio_cell_level = INT( 1.099_wp / dz(1) )
1232	bio_output_height = bio_output_height + bio_cell_level * dz(1)
1233	!
1234	!-- Set radiation level if not done by user
1235	IF ( mrt_nlevels == 0 ) THEN
1236	mrt_nlevels = bio_cell_level + 1_iwp
1237	ENDIF
1238	!
1239	!-- Init UVEM and load lookup tables
1240	IF ( uv_exposure ) CALL netcdf_data_input_uvem
1241
1242	IF ( debug_output ) CALL debug_message( 'bio_init', 'end' )
1243
1244	END SUBROUTINE bio_init
1245
1246
1247	!--------------------------------------------------------------------------------------------------!
1248	! Description:
1249	! ------------
1250	!> Checks done after the Initialization
1251	!--------------------------------------------------------------------------------------------------!
1252	SUBROUTINE bio_init_checks
1253
1254	USE control_parameters, &
1255	ONLY: message_string
1256
1257	IF ( (.NOT. radiation_interactions) .AND. ( thermal_comfort ) ) THEN
1258	message_string = 'The mrt calculation requires ' // &
1259	'enabled radiation_interactions but it ' // &
1260	'is disabled!'
1261	CALL message( 'bio_init_checks', 'PAHU03', 1, 2, 0, 6, 0 )
1262	ENDIF
1263
1264
1265	END SUBROUTINE bio_init_checks
1266
1267
1268	!--------------------------------------------------------------------------------------------------!
1269	! Description:
1270	! ------------
1271	!> Parin for &biometeorology_parameters for reading biomet parameters
1272	!--------------------------------------------------------------------------------------------------!
1273	SUBROUTINE bio_parin
1274
1275	IMPLICIT NONE
1276
1277	!
1278	!-- Internal variables
1279	CHARACTER (LEN=80) :: line !< Dummy string for current line in parameter file
1280
1281	NAMELIST /biometeorology_parameters/ clothing, &
1282	consider_obstructions, &
1283	orientation_angle, &
1284	sun_in_south, &
1285	thermal_comfort, &
1286	turn_to_sun, &
1287	uv_exposure
1288
1289
1290	!-- Try to find biometeorology_parameters namelist
1291	REWIND ( 11 )
1292	line = ' '
1293	DO WHILE ( INDEX( line, '&biometeorology_parameters' ) == 0 )
1294	READ ( 11, '(A)', END = 20 ) line
1295	ENDDO
1296	BACKSPACE ( 11 )
1297
1298	!
1299	!-- Read biometeorology_parameters namelist
1300	READ ( 11, biometeorology_parameters, ERR = 10, END = 20 )
1301
1302	!
1303	!-- Set flag that indicates that the biomet_module is switched on
1304	biometeorology = .TRUE.
1305
1306	GOTO 20
1307
1308	!
1309	!-- In case of error
1310	10 BACKSPACE( 11 )
1311	READ( 11 , '(A)') line
1312	CALL parin_fail_message( 'biometeorology_parameters', line )
1313
1314	!
1315	!-- Complete
1316	20 CONTINUE
1317
1318
1319	END SUBROUTINE bio_parin
1320
1321	!--------------------------------------------------------------------------------------------------!
1322	! Description:
1323	! ------------
1324	!> Read module-specific global restart data (Fortran binary format).
1325	!--------------------------------------------------------------------------------------------------!
1326	SUBROUTINE bio_rrd_global_ftn( found )
1327
1328	USE control_parameters, &
1329	ONLY: length, restart_string
1330
1331
1332	IMPLICIT NONE
1333
1334	LOGICAL, INTENT(OUT) :: found !< variable found? yes = .T., no = .F.
1335
1336	found = .TRUE.
1337
1338
1339	SELECT CASE ( restart_string(1:length) )
1340
1341	!
1342	!-- Read control flags to determine if input grids need to be averaged.
1343	CASE ( 'do_average_theta' )
1344	READ ( 13 ) do_average_theta
1345
1346	CASE ( 'do_average_q' )
1347	READ ( 13 ) do_average_q
1348
1349	CASE ( 'do_average_u' )
1350	READ ( 13 ) do_average_u
1351
1352	CASE ( 'do_average_v' )
1353	READ ( 13 ) do_average_v
1354
1355	CASE ( 'do_average_w' )
1356	READ ( 13 ) do_average_w
1357
1358	CASE ( 'do_average_mrt' )
1359	READ ( 13 ) do_average_mrt
1360
1361	!
1362	!-- Read control flags to determine which thermal index needs to trigger averaging.
1363	CASE ( 'average_trigger_perct' )
1364	READ ( 13 ) average_trigger_perct
1365
1366	CASE ( 'average_trigger_utci' )
1367	READ ( 13 ) average_trigger_utci
1368
1369	CASE ( 'average_trigger_pet' )
1370	READ ( 13 ) average_trigger_pet
1371
1372	CASE ( 'average_trigger_mrt' )
1373	READ ( 13 ) average_trigger_mrt
1374
1375
1376	CASE DEFAULT
1377
1378	found = .FALSE.
1379
1380	END SELECT
1381
1382
1383	END SUBROUTINE bio_rrd_global_ftn
1384
1385
1386	!--------------------------------------------------------------------------------------------------!
1387	! Description:
1388	! ------------
1389	!> Read module-specific global restart data (MPI-IO).
1390	!--------------------------------------------------------------------------------------------------!
1391	SUBROUTINE bio_rrd_global_mpi
1392
1393
1394	!
1395	!-- Read control flags to determine if input grids need to be averaged
1396	CALL rrd_mpi_io( 'do_average_theta', do_average_theta )
1397	CALL rrd_mpi_io( 'do_average_q', do_average_q )
1398	CALL rrd_mpi_io( 'do_average_u', do_average_u )
1399	CALL rrd_mpi_io( 'do_average_v', do_average_v )
1400	CALL rrd_mpi_io( 'do_average_w', do_average_w )
1401	CALL rrd_mpi_io( 'do_average_mrt', do_average_mrt )
1402	!
1403	!-- Rad control flags to determine which thermal index needs to trigger averaging
1404	CALL rrd_mpi_io( 'average_trigger_perct', average_trigger_perct )
1405	CALL rrd_mpi_io( 'average_trigger_utci', average_trigger_utci )
1406	CALL rrd_mpi_io( 'average_trigger_pet', average_trigger_pet )
1407	CALL rrd_mpi_io( 'average_trigger_mrt', average_trigger_mrt )
1408
1409	END SUBROUTINE bio_rrd_global_mpi
1410
1411
1412	!--------------------------------------------------------------------------------------------------!
1413	! Description:
1414	! ------------
1415	!> Read module-specific local restart data arrays (Fortran binary format).
1416	!--------------------------------------------------------------------------------------------------!
1417	SUBROUTINE bio_rrd_local_ftn( found )
1418
1419
1420	USE control_parameters, &
1421	ONLY: length, restart_string
1422
1423
1424	IMPLICIT NONE
1425
1426
1427	LOGICAL, INTENT(OUT) :: found !< variable found? yes = .TRUE., no = .FALSE.
1428
1429	found = .TRUE.
1430
1431
1432	SELECT CASE ( restart_string(1:length) )
1433
1434	CASE ( 'nmrtbl' )
1435	READ ( 13 ) bio_nmrtbl
1436
1437	CASE ( 'mrt_av_grid' )
1438	IF ( .NOT. ALLOCATED( mrt_av_grid ) ) THEN
1439	ALLOCATE( mrt_av_grid(bio_nmrtbl) )
1440	ENDIF
1441	READ ( 13 ) mrt_av_grid
1442
1443
1444	CASE DEFAULT
1445
1446	found = .FALSE.
1447
1448	END SELECT
1449
1450
1451	END SUBROUTINE bio_rrd_local_ftn
1452
1453
1454	!------------------------------------------------------------------------------!
1455	! Description:
1456	! ------------
1457	!> Read module-specific local restart data arrays (Fortran binary format).
1458	!------------------------------------------------------------------------------!
1459	SUBROUTINE bio_rrd_local_mpi
1460
1461	STOP '+++ reading restart data with MPI-IO not implemented for bio_rrd_local_mpi'
1462
1463	END SUBROUTINE bio_rrd_local_mpi
1464
1465
1466	!--------------------------------------------------------------------------------------------------!
1467	! Description:
1468	! ------------
1469	!> Write global restart data for the biometeorology module.
1470	!--------------------------------------------------------------------------------------------------!
1471	SUBROUTINE bio_wrd_global
1472
1473	IMPLICIT NONE
1474
1475	IF ( TRIM( restart_data_format_output ) == 'fortran_binary' ) THEN
1476
1477	CALL wrd_write_string( 'do_average_theta' )
1478	WRITE ( 14 ) do_average_theta
1479	CALL wrd_write_string( 'do_average_q' )
1480	WRITE ( 14 ) do_average_q
1481	CALL wrd_write_string( 'do_average_u' )
1482	WRITE ( 14 ) do_average_u
1483	CALL wrd_write_string( 'do_average_v' )
1484	WRITE ( 14 ) do_average_v
1485	CALL wrd_write_string( 'do_average_w' )
1486	WRITE ( 14 ) do_average_w
1487	CALL wrd_write_string( 'do_average_mrt' )
1488	WRITE ( 14 ) do_average_mrt
1489	CALL wrd_write_string( 'average_trigger_perct' )
1490	WRITE ( 14 ) average_trigger_perct
1491	CALL wrd_write_string( 'average_trigger_utci' )
1492	WRITE ( 14 ) average_trigger_utci
1493	CALL wrd_write_string( 'average_trigger_pet' )
1494	WRITE ( 14 ) average_trigger_pet
1495	CALL wrd_write_string( 'average_trigger_mrt' )
1496	WRITE ( 14 ) average_trigger_mrt
1497
1498	ELSEIF ( TRIM( restart_data_format_output(1:3) ) == 'mpi' ) THEN
1499
1500	CALL wrd_mpi_io( 'do_average_theta', do_average_theta )
1501	CALL wrd_mpi_io( 'do_average_q', do_average_q )
1502	CALL wrd_mpi_io( 'do_average_u', do_average_u )
1503	CALL wrd_mpi_io( 'do_average_v', do_average_v )
1504	CALL wrd_mpi_io( 'do_average_w', do_average_w )
1505	CALL wrd_mpi_io( 'do_average_mrt', do_average_mrt )
1506	CALL wrd_mpi_io( 'average_trigger_perct', average_trigger_perct )
1507	CALL wrd_mpi_io( 'average_trigger_utci', average_trigger_utci )
1508	CALL wrd_mpi_io( 'average_trigger_pet', average_trigger_pet )
1509	CALL wrd_mpi_io( 'average_trigger_mrt', average_trigger_mrt )
1510
1511	ENDIF
1512
1513	END SUBROUTINE bio_wrd_global
1514
1515
1516	!--------------------------------------------------------------------------------------------------!
1517	! Description:
1518	! ------------
1519	!> Write local restart data for the biometeorology module.
1520	!--------------------------------------------------------------------------------------------------!
1521	SUBROUTINE bio_wrd_local
1522
1523	IMPLICIT NONE
1524
1525
1526	IF ( TRIM( restart_data_format_output ) == 'fortran_binary' ) THEN
1527
1528	!
1529	!-- First nmrtbl has to be written/read, because it is the dimension of mrt_av_grid
1530	CALL wrd_write_string( 'nmrtbl' )
1531	WRITE ( 14 ) nmrtbl
1532
1533	IF ( ALLOCATED( mrt_av_grid ) ) THEN
1534	CALL wrd_write_string( 'mrt_av_grid' )
1535	WRITE ( 14 ) mrt_av_grid
1536	ENDIF
1537
1538	ELSEIF ( TRIM( restart_data_format_output(1:3) ) == 'mpi' ) THEN
1539
1540	!
1541	!-- TODO: the mrt_av_grid is a 1-d array and its size depends on subdomain features. This does
1542	!-- not work with the MPI-IO concept (nor with the restart I/O concept in general.
1543	!-- I am not sure, if this data needs to be written to the restart file at all (Siggi, 13.4.20)
1544	! CALL wrd_mpi_io( 'nmrtbl', nmrtbl )
1545	! CALL wrd_mpi_io_..... 'mrt_av_grid'
1546	WRITE (6,*) '+++ biometeorology module does not work with MPI-IO for restart_data'
1547	STOP
1548
1549	ENDIF
1550
1551	END SUBROUTINE bio_wrd_local
1552
1553	!--------------------------------------------------------------------------------------------------!
1554	! Description:
1555	! ------------
1556	!> Calculate biometeorology MRT for all 2D grid
1557	!--------------------------------------------------------------------------------------------------!
1558	SUBROUTINE bio_calculate_mrt_grid ( av )
1559
1560	IMPLICIT NONE
1561
1562	LOGICAL, INTENT(IN) :: av !< use averaged input?
1563	!
1564	!-- Internal variables
1565	INTEGER(iwp) :: i !< Running index, x-dir, radiation coordinates
1566	INTEGER(iwp) :: j !< Running index, y-dir, radiation coordinates
1567	INTEGER(iwp) :: k !< Running index, y-dir, radiation coordinates
1568	INTEGER(iwp) :: l !< Running index, radiation coordinates
1569
1570
1571	!
1572	!-- We need to differentiate if averaged input is desired (av == .TRUE.) or not.
1573	IF ( av ) THEN
1574	!
1575	!-- Make sure tmrt_av_grid is present and initialize with the fill value
1576	IF ( .NOT. ALLOCATED( tmrt_av_grid ) ) THEN
1577	ALLOCATE( tmrt_av_grid (nys:nyn,nxl:nxr) )
1578	ENDIF
1579	tmrt_av_grid = REAL( bio_fill_value, KIND = wp )
1580
1581	!
1582	!-- mrt_av_grid should always be allcoated here, but better make sure ist actually is.
1583	IF ( ALLOCATED( mrt_av_grid ) ) THEN
1584	!
1585	!-- Iterate over the radiation grid (radiation coordinates) and fill the tmrt_av_grid
1586	!-- (x, y coordinates) where appropriate: tmrt_av_grid is written for all i / j if level (k)
1587	!-- matches output height.
1588	DO l = 1, nmrtbl
1589	i = mrtbl(ix,l)
1590	j = mrtbl(iy,l)
1591	k = mrtbl(iz,l)
1592	IF ( k - topo_top_ind(j,i,0) == bio_cell_level + 1_iwp) THEN
1593	!
1594	!-- Averaging was done before, so we can just copy the result here.
1595	tmrt_av_grid(j,i) = mrt_av_grid(l)
1596
1597	ENDIF
1598	ENDDO
1599	ENDIF
1600
1601	!
1602	!-- In case instantaneous input is desired, mrt values will be re-calculated.
1603	ELSE
1604	!
1605	!-- Calculate biometeorology MRT from local radiation fluxes calculated by RTM and assign into 2D
1606	!-- grid. Depending on selected output quantities, tmrt_grid might not have been allocated in
1607	!-- bio_check_data_output yet.
1608	IF ( .NOT. ALLOCATED( tmrt_grid ) ) THEN
1609	ALLOCATE( tmrt_grid (nys:nyn,nxl:nxr) )
1610	ENDIF
1611	tmrt_grid = REAL( bio_fill_value, KIND = wp )
1612
1613	DO l = 1, nmrtbl
1614	i = mrtbl(ix,l)
1615	j = mrtbl(iy,l)
1616	k = mrtbl(iz,l)
1617	IF ( k - topo_top_ind(j,i,0) == bio_cell_level + 1_iwp) THEN
1618	IF ( mrt_include_sw ) THEN
1619	tmrt_grid(j,i) = ( ( human_absorb * mrtinsw(l) + &
1620	mrtinlw(l) ) / &
1621	( human_emiss * sigma_sb ) )**0.25_wp - &
1622	degc_to_k
1623	ELSE
1624	tmrt_grid(j,i) = ( mrtinlw(l) / &
1625	( human_emiss * sigma_sb ) )**0.25_wp - &
1626	degc_to_k
1627	ENDIF
1628	ENDIF
1629	ENDDO
1630	ENDIF
1631
1632	END SUBROUTINE bio_calculate_mrt_grid
1633
1634
1635	!--------------------------------------------------------------------------------------------------!
1636	! Description:
1637	! ------------
1638	!> Calculate static thermal indices for 2D grid point i, j
1639	!--------------------------------------------------------------------------------------------------!
1640	SUBROUTINE bio_get_thermal_index_input_ij( average_input, i, j, ta, vp, ws, pair, tmrt )
1641
1642	IMPLICIT NONE
1643	!
1644	!-- Input variables
1645	LOGICAL, INTENT ( IN ) :: average_input !< Determine averaged input conditions?
1646	INTEGER(iwp), INTENT ( IN ) :: i !< Running index, x-dir
1647	INTEGER(iwp), INTENT ( IN ) :: j !< Running index, y-dir
1648	!
1649	!-- Output parameters
1650	REAL(wp), INTENT ( OUT ) :: pair !< Air pressure (hPa)
1651	REAL(wp), INTENT ( OUT ) :: ta !< Air temperature (degree_C)
1652	REAL(wp), INTENT ( OUT ) :: tmrt !< Mean radiant temperature (degree_C)
1653	REAL(wp), INTENT ( OUT ) :: vp !< Vapour pressure (hPa)
1654	REAL(wp), INTENT ( OUT ) :: ws !< Wind speed (local level) (m/s)
1655	!
1656	!-- Internal variables
1657	INTEGER(iwp) :: k !< Running index, z-dir
1658	INTEGER(iwp) :: k_wind !< Running index, z-dir, wind speed only
1659
1660	REAL(wp) :: vp_sat !< Saturation vapor pressure (hPa)
1661
1662	!
1663	!-- Determine cell level closest to 1.1m above ground by making use of truncation due to int cast.
1664	k = INT( topo_top_ind(j,i,0) + bio_cell_level ) !< Vertical cell center closest to 1.1m
1665
1666	!
1667	!-- Avoid non-representative horizontal u and v of 0.0 m/s too close to ground
1668	k_wind = k
1669	IF ( bio_cell_level < 1_iwp ) THEN
1670	k_wind = k + 1_iwp
1671	ENDIF
1672	!
1673	!-- Determine local values:
1674	IF ( average_input ) THEN
1675	!
1676	!-- Calculate ta from Tp assuming dry adiabatic laps rate
1677	ta = bio_fill_value
1678	IF ( ALLOCATED( pt_av ) ) THEN
1679	ta = pt_av(k,j,i) - ( 0.0098_wp * dz(1) * ( k + 0.5_wp ) ) - degc_to_k
1680	ENDIF
1681
1682	vp = bio_fill_value
1683	IF ( humidity .AND. ALLOCATED( q_av ) ) THEN
1684	vp = q_av(k,j,i)
1685	ENDIF
1686
1687	ws = bio_fill_value
1688	IF ( ALLOCATED( u_av ) .AND. ALLOCATED( v_av ) .AND. &
1689	ALLOCATED( w_av ) ) THEN
1690	ws = ( 0.5_wp * ABS( u_av(k_wind,j,i) + u_av(k_wind,j,i+1) ) + &
1691	0.5_wp * ABS( v_av(k_wind,j,i) + v_av(k_wind,j+1,i) ) + &
1692	0.5_wp * ABS( w_av(k_wind,j,i) + w_av(k_wind+1,j,i) ) )
1693	ENDIF
1694	ELSE
1695	!
1696	!-- Calculate ta from Tp assuming dry adiabatic laps rate
1697	ta = pt(k,j,i) - ( 0.0098_wp * dz(1) * ( k + 0.5_wp ) ) - degc_to_k
1698
1699	vp = bio_fill_value
1700	IF ( humidity ) THEN
1701	vp = q(k,j,i)
1702	ENDIF
1703
1704	ws = ( 0.5_wp * ABS( u(k_wind,j,i) + u(k_wind,j,i+1) ) + &
1705	0.5_wp * ABS( v(k_wind,j,i) + v(k_wind,j+1,i) ) + &
1706	0.5_wp * ABS( w(k_wind,j,i) + w(k_wind+1,j,i) ) )
1707
1708	ENDIF
1709	!
1710	!-- Local air pressure
1711	pair = surface_pressure
1712	!
1713	!-- Calculate water vapour pressure at saturation and convert to hPa.
1714	!-- The magnus formula is limited to temperatures up to 333.15 K to avoid negative values of vp_sat.
1715	IF ( vp > -998.0_wp ) THEN
1716	vp_sat = 0.01_wp * magnus( MIN( ta + degc_to_k, 333.15_wp ) )
1717	vp = vp * pair / ( vp + 0.622_wp )
1718	IF ( vp > vp_sat ) vp = vp_sat
1719	ENDIF
1720	!
1721	!-- Local mtr value at [i,j]
1722	tmrt = bio_fill_value !< this can be a valid result (e.g. for inside some ostacle)
1723	IF ( .NOT. average_input ) THEN
1724	!
1725	!-- Use MRT from RTM precalculated in tmrt_grid
1726	tmrt = tmrt_grid(j,i)
1727	ELSE
1728	tmrt = tmrt_av_grid(j,i)
1729	ENDIF
1730
1731	END SUBROUTINE bio_get_thermal_index_input_ij
1732
1733
1734	!--------------------------------------------------------------------------------------------------!
1735	! Description:
1736	! ------------
1737	!> Calculate static thermal indices for any point within a 2D grid time_integration.f90: 1065ff
1738	!--------------------------------------------------------------------------------------------------!
1739	SUBROUTINE bio_calculate_thermal_index_maps( av )
1740
1741	IMPLICIT NONE
1742	!
1743	!-- Input attributes
1744	LOGICAL, INTENT ( IN ) :: av !< Calculate based on averaged input conditions?
1745	!
1746	!-- Internal variables
1747	INTEGER(iwp) :: i, j !< Running index
1748
1749	REAL(wp) :: clo !< Clothing index (no dimension)
1750	REAL(wp) :: pair !< Air pressure (hPa)
1751	REAL(wp) :: perct_ij !< Perceived temperature (degree_C)
1752	REAL(wp) :: pet_ij !< Physiologically equivalent temperature (degree_C)
1753	REAL(wp) :: ta !< Air temperature (degree_C)
1754	REAL(wp) :: tmrt_ij !< Mean radiant temperature (degree_C)
1755	REAL(wp) :: utci_ij !< Universal thermal climate index (degree_C)
1756	REAL(wp) :: vp !< Vapour pressure (hPa)
1757	REAL(wp) :: ws !< Wind speed (local level) (m/s)
1758
1759	!
1760	!-- Check if some thermal index is desired. Don't do anything if, e.g. only bio_mrt is desired.
1761	IF ( do_calculate_perct .OR. do_calculate_perct_av .OR. do_calculate_utci .OR. &
1762	do_calculate_utci_av .OR. do_calculate_pet .OR. do_calculate_pet_av .OR. &
1763	do_calculate_mrt2d ) THEN
1764
1765	!
1766	!-- fill out the MRT 2D grid from appropriate source (RTM, RRTMG,...)
1767	CALL bio_calculate_mrt_grid ( av )
1768
1769	DO i = nxl, nxr
1770	DO j = nys, nyn
1771	!
1772	!-- Determine local input conditions
1773	tmrt_ij = bio_fill_value
1774	vp = bio_fill_value
1775	!
1776	!-- Determine local meteorological conditions
1777	CALL bio_get_thermal_index_input_ij ( av, i, j, ta, vp, ws, pair, tmrt_ij )
1778	!
1779	!-- Only proceed if input is available
1780	pet_ij = bio_fill_value !< set fail value, e.g. valid for
1781	perct_ij = bio_fill_value !< within some obstacle
1782	utci_ij = bio_fill_value
1783	IF ( .NOT. ( tmrt_ij <= -998.0_wp .OR. vp <= -998.0_wp .OR. ws <= -998.0_wp .OR.&
1784	ta <= -998.0_wp ) ) THEN
1785	!
1786	!-- Calculate static thermal indices based on local tmrt
1787	clo = bio_fill_value
1788
1789	IF ( do_calculate_perct .OR. do_calculate_perct_av ) THEN
1790	!
1791	!-- Estimate local perceived temperature
1792	CALL calculate_perct_static( ta, vp, ws, tmrt_ij, pair, clo, perct_ij )
1793	ENDIF
1794
1795	IF ( do_calculate_utci .OR. do_calculate_utci_av ) THEN
1796	!
1797	!-- Estimate local universal thermal climate index
1798	CALL calculate_utci_static( ta, vp, ws, tmrt_ij, bio_output_height, utci_ij )
1799	ENDIF
1800
1801	IF ( do_calculate_pet .OR. do_calculate_pet_av ) THEN
1802	!
1803	!-- Estimate local physiologically equivalent temperature
1804	CALL calculate_pet_static( ta, vp, ws, tmrt_ij, pair, pet_ij )
1805	ENDIF
1806	ENDIF
1807
1808
1809	IF ( av ) THEN
1810	!
1811	!-- Write results for selected averaged indices
1812	IF ( do_calculate_perct_av ) THEN
1813	perct_av(j, i) = perct_ij
1814	ENDIF
1815	IF ( do_calculate_utci_av ) THEN
1816	utci_av(j, i) = utci_ij
1817	ENDIF
1818	IF ( do_calculate_pet_av ) THEN
1819	pet_av(j, i) = pet_ij
1820	ENDIF
1821	ELSE
1822	!
1823	!-- Write result for selected indices
1824	IF ( do_calculate_perct ) THEN
1825	perct(j, i) = perct_ij
1826	ENDIF
1827	IF ( do_calculate_utci ) THEN
1828	utci(j, i) = utci_ij
1829	ENDIF
1830	IF ( do_calculate_pet ) THEN
1831	pet(j, i) = pet_ij
1832	ENDIF
1833	ENDIF
1834
1835	ENDDO
1836	ENDDO
1837	ENDIF
1838
1839	END SUBROUTINE bio_calculate_thermal_index_maps
1840
1841	!--------------------------------------------------------------------------------------------------!
1842	! Description:
1843	! ------------
1844	!> Calculate dynamic thermal indices (currently only iPT, but expandable)
1845	!--------------------------------------------------------------------------------------------------!
1846	SUBROUTINE bio_calc_ipt( ta, vp, ws, pair, tmrt, dt, energy_storage, t_clo, clo, actlev, age, &
1847	weight, height, work, sex, ipt )
1848
1849	IMPLICIT NONE
1850	!
1851	!-- Input parameters
1852	INTEGER(iwp), INTENT ( IN ) :: sex !< Sex of agent (1 = male, 2 = female)
1853
1854	REAL(wp), INTENT ( IN ) :: age !< Age of agent (y)
1855	REAL(wp), INTENT ( IN ) :: dt !< Time past SINce last calculation (s)
1856	REAL(wp), INTENT ( IN ) :: height !< Height of agent (m)
1857	REAL(wp), INTENT ( IN ) :: pair !< Air pressure (hPa)
1858	REAL(wp), INTENT ( IN ) :: ta !< Air temperature (degree_C)
1859	REAL(wp), INTENT ( IN ) :: tmrt !< Mean radiant temperature (degree_C)
1860	REAL(wp), INTENT ( IN ) :: vp !< Vapour pressure (hPa)
1861	REAL(wp), INTENT ( IN ) :: weight !< Weight of agent (Kg)
1862	REAL(wp), INTENT ( IN ) :: work !< Mechanical workload of agent (without metabolism!) (W)
1863	REAL(wp), INTENT ( IN ) :: ws !< Wind speed (local level) (m/s)
1864
1865	!
1866	!-- Both, input and output parameters
1867	Real(wp), INTENT ( INOUT ) :: actlev !< Individuals activity level
1868	!< per unit surface area (W/mÂ²)
1869	Real(wp), INTENT ( INOUT ) :: clo !< Current clothing in sulation
1870	Real(wp), INTENT ( INOUT ) :: energy_storage !< Energy storage (W/mÂ²)
1871	Real(wp), INTENT ( INOUT ) :: t_clo !< Clothing temperature (degree_C)
1872	!
1873	!-- Output parameters
1874	REAL(wp), INTENT ( OUT ) :: ipt !< Instationary perceived temp. (degree_C)
1875	!
1876	!-- Return immediatelly if nothing to do!
1877	IF ( .NOT. thermal_comfort ) THEN
1878	RETURN
1879	ENDIF
1880	!
1881	!-- If clo equals the initial value, this is the initial call
1882	IF ( clo <= -998.0_wp ) THEN
1883	!
1884	!-- Initialize instationary perceived temperature with personalized PT as an initial guess, set
1885	!-- actlev and clo
1886	CALL ipt_init( age, weight, height, sex, work, actlev, clo, ta, vp, ws, tmrt, pair, dt, &
1887	energy_storage, t_clo, ipt )
1888	ELSE
1889	!
1890	!-- Estimate local instatinoary perceived temperature
1891	CALL ipt_cycle ( ta, vp, ws, tmrt, pair, dt, energy_storage, t_clo, clo, actlev, work, ipt )
1892	ENDIF
1893
1894	END SUBROUTINE bio_calc_ipt
1895
1896
1897
1898	!--------------------------------------------------------------------------------------------------!
1899	! Description:
1900	! ------------
1901	!> SUBROUTINE for calculating UTCI Temperature (UTCI)
1902	!> computed by a 6th order approximation
1903	!>
1904	!> UTCI regression equation according to
1905	!> BrÃ¶de P, Fiala D, Blazejczyk K, HolmÃ©r I, Jendritzky G, Kampmann B, Tinz B, Havenith G (2012)
1906	!> Deriving the operational procedure for the Universal Thermal Climate Index (UTCI). International
1907	!> Journal of Biometeorology 56 (3):481-494. doi:10.1007/s00484-011-0454-1
1908	!>
1909	!> original source available at:
1910	!> www.utci.org
1911	!--------------------------------------------------------------------------------------------------!
1912	SUBROUTINE calculate_utci_static( ta_in, vp, ws_hag, tmrt, hag, utci_ij )
1913
1914	IMPLICIT NONE
1915	!
1916	!-- Type of input of the argument list
1917	REAL(WP), INTENT ( IN ) :: hag !< Height of wind speed input (m)
1918	REAL(WP), INTENT ( IN ) :: ta_in !< Local air temperature (degree_C)
1919	REAL(WP), INTENT ( IN ) :: tmrt !< Local mean radiant temperature (degree_C)
1920	REAL(WP), INTENT ( IN ) :: vp !< Loacl vapour pressure (hPa)
1921	REAL(WP), INTENT ( IN ) :: ws_hag !< Incident wind speed (m/s)
1922	!
1923	!-- Type of output of the argument list
1924	REAL(WP) :: d_tmrt !< delta-tmrt (degree_C)
1925	REAL(WP) :: d_tmrt2 !< 2 times d_tmrt
1926	REAL(WP) :: d_tmrt3 !< 3 times d_tmrt
1927	REAL(WP) :: d_tmrt4 !< 4 times d_tmrt
1928	REAL(WP) :: d_tmrt5 !< 5 times d_tmrt
1929	REAL(WP) :: d_tmrt6 !< 6 times d_tmrt
1930	REAL(WP) :: offset !< utci deviation by ta cond. exceeded (degree_C)
1931	REAL(WP) :: pa !< air pressure in kPa (kPa)
1932	REAL(WP) :: pa2 !< 2 times pa
1933	REAL(WP) :: pa3 !< 3 times pa
1934	REAL(WP) :: pa4 !< 4 times pa
1935	REAL(WP) :: pa5 !< 5 times pa
1936	REAL(WP) :: pa6 !< 6 times pa
1937	REAL(WP) :: part_d_tmrt !< Mean radiant temp. related part of the reg.
1938	REAL(WP) :: part_pa !< Air pressure related part of the regression
1939	REAL(WP) :: part_pa2 !< Air pressure^2 related part of the regression
1940	REAL(WP) :: part_pa3 !< Air pressure^3 related part of the regression
1941	REAL(WP) :: part_pa46 !< Air pressure^4-6 related part of the regression
1942	REAL(WP) :: part_ta !< Air temperature related part of the regression
1943	REAL(WP) :: part_va !< Vapour pressure related part of the regression
1944	REAL(WP) :: ta !< air temperature modified by offset (degree_C)
1945	REAL(WP) :: ta2 !< 2 times ta
1946	REAL(WP) :: ta3 !< 3 times ta
1947	REAL(WP) :: ta4 !< 4 times ta
1948	REAL(WP) :: ta5 !< 5 times ta
1949	REAL(WP) :: ta6 !< 6 times ta
1950	REAL(WP) :: va !< wind speed at 10 m above ground level (m/s)
1951	REAL(WP) :: va2 !< 2 times va
1952	REAL(WP) :: va3 !< 3 times va
1953	REAL(WP) :: va4 !< 4 times va
1954	REAL(WP) :: va5 !< 5 times va
1955	REAL(WP) :: va6 !< 6 times va
1956
1957
1958	REAL(wp), INTENT ( OUT ) :: utci_ij !< Universal Thermal Climate Index (degree_C)
1959
1960	!
1961	!-- Initialize
1962	offset = 0.0_wp
1963	ta = ta_in
1964	d_tmrt = tmrt - ta_in
1965	!
1966	!-- Use vapour pressure in kpa
1967	pa = vp / 10.0_wp
1968	!
1969	!-- Wind altitude correction from hag to 10m after Broede et al. (2012), eq.3
1970	!-- z(0) is set to 0.01 according to UTCI profile definition
1971	va = ws_hag * log ( 10.0_wp / 0.01_wp ) / log ( hag / 0.01_wp )
1972	!
1973	!-- Check if input values in range after Broede et al. (2012)
1974	IF ( ( d_tmrt > 70.0_wp ) .OR. ( d_tmrt < -30.0_wp ) .OR. ( vp >= 50.0_wp ) ) THEN
1975	utci_ij = bio_fill_value
1976	RETURN
1977	ENDIF
1978	!
1979	!-- Apply eq. 2 in Broede et al. (2012) for ta out of bounds
1980	IF ( ta > 50.0_wp ) THEN
1981	offset = ta - 50.0_wp
1982	ta = 50.0_wp
1983	ENDIF
1984	IF ( ta < -50.0_wp ) THEN
1985	offset = ta + 50.0_wp
1986	ta = -50.0_wp
1987	ENDIF
1988	!
1989	!-- For routine application. For wind speeds and relative humidity values below 0.5 m/s or 5%,
1990	!-- respectively, the user is advised to use the lower bounds for the calculations.
1991	IF ( va < 0.5_wp ) va = 0.5_wp
1992	IF ( va > 17.0_wp ) va = 17.0_wp
1993
1994	!
1995	!-- Pre-calculate multiples of input parameters to save time later
1996	ta2 = ta * ta
1997	ta3 = ta2 * ta
1998	ta4 = ta3 * ta
1999	ta5 = ta4 * ta
2000	ta6 = ta5 * ta
2001
2002	va2 = va * va
2003	va3 = va2 * va
2004	va4 = va3 * va
2005	va5 = va4 * va
2006	va6 = va5 * va
2007
2008	d_tmrt2 = d_tmrt * d_tmrt
2009	d_tmrt3 = d_tmrt2 * d_tmrt
2010	d_tmrt4 = d_tmrt3 * d_tmrt
2011	d_tmrt5 = d_tmrt4 * d_tmrt
2012	d_tmrt6 = d_tmrt5 * d_tmrt
2013
2014	pa2 = pa * pa
2015	pa3 = pa2 * pa
2016	pa4 = pa3 * pa
2017	pa5 = pa4 * pa
2018	pa6 = pa5 * pa
2019
2020	!
2021	!-- Pre-calculate parts of the regression equation
2022	part_ta = ( 6.07562052e-01_wp ) + &
2023	( -2.27712343e-02_wp ) * ta + &
2024	( 8.06470249e-04_wp ) * ta2 + &
2025	( -1.54271372e-04_wp ) * ta3 + &
2026	( -3.24651735e-06_wp ) * ta4 + &
2027	( 7.32602852e-08_wp ) * ta5 + &
2028	( 1.35959073e-09_wp ) * ta6
2029
2030	part_va = ( -2.25836520e+00_wp ) * va + &
2031	( 8.80326035e-02_wp ) * ta * va + &
2032	( 2.16844454e-03_wp ) * ta2 * va + &
2033	( -1.53347087e-05_wp ) * ta3 * va + &
2034	( -5.72983704e-07_wp ) * ta4 * va + &
2035	( -2.55090145e-09_wp ) * ta5 * va + &
2036	( -7.51269505e-01_wp ) * va2 + &
2037	( -4.08350271e-03_wp ) * ta * va2 + &
2038	( -5.21670675e-05_wp ) * ta2 * va2 + &
2039	( 1.94544667e-06_wp ) * ta3 * va2 + &
2040	( 1.14099531e-08_wp ) * ta4 * va2 + &
2041	( 1.58137256e-01_wp ) * va3 + &
2042	( -6.57263143e-05_wp ) * ta * va3 + &
2043	( 2.22697524e-07_wp ) * ta2 * va3 + &
2044	( -4.16117031e-08_wp ) * ta3 * va3 + &
2045	( -1.27762753e-02_wp ) * va4 + &
2046	( 9.66891875e-06_wp ) * ta * va4 + &
2047	( 2.52785852e-09_wp ) * ta2 * va4 + &
2048	( 4.56306672e-04_wp ) * va5 + &
2049	( -1.74202546e-07_wp ) * ta * va5 + &
2050	( -5.91491269e-06_wp ) * va6
2051
2052	part_d_tmrt = ( 3.98374029e-01_wp ) * d_tmrt + &
2053	( 1.83945314e-04_wp ) * ta * d_tmrt + &
2054	( -1.73754510e-04_wp ) * ta2 * d_tmrt + &
2055	( -7.60781159e-07_wp ) * ta3 * d_tmrt + &
2056	( 3.77830287e-08_wp ) * ta4 * d_tmrt + &
2057	( 5.43079673e-10_wp ) * ta5 * d_tmrt + &
2058	( -2.00518269e-02_wp ) * va * d_tmrt + &
2059	( 8.92859837e-04_wp ) * ta * va * d_tmrt + &
2060	( 3.45433048e-06_wp ) * ta2 * va * d_tmrt + &
2061	( -3.77925774e-07_wp ) * ta3 * va * d_tmrt + &
2062	( -1.69699377e-09_wp ) * ta4 * va * d_tmrt + &
2063	( 1.69992415e-04_wp ) * va2 * d_tmrt + &
2064	( -4.99204314e-05_wp ) * ta * va2 * d_tmrt + &
2065	( 2.47417178e-07_wp ) * ta2 * va2 * d_tmrt + &
2066	( 1.07596466e-08_wp ) * ta3 * va2 * d_tmrt + &
2067	( 8.49242932e-05_wp ) * va3 * d_tmrt + &
2068	( 1.35191328e-06_wp ) * ta * va3 * d_tmrt + &
2069	( -6.21531254e-09_wp ) * ta2 * va3 * d_tmrt + &
2070	( -4.99410301e-06_wp ) * va4 * d_tmrt + &
2071	( -1.89489258e-08_wp ) * ta * va4 * d_tmrt + &
2072	( 8.15300114e-08_wp ) * va5 * d_tmrt + &
2073	( 7.55043090e-04_wp ) * d_tmrt2 + &
2074	( -5.65095215e-05_wp ) * ta * d_tmrt2 + &
2075	( -4.52166564e-07_wp ) * ta2 * d_tmrt2 + &
2076	( 2.46688878e-08_wp ) * ta3 * d_tmrt2 + &
2077	( 2.42674348e-10_wp ) * ta4 * d_tmrt2 + &
2078	( 1.54547250e-04_wp ) * va * d_tmrt2 + &
2079	( 5.24110970e-06_wp ) * ta * va * d_tmrt2 + &
2080	( -8.75874982e-08_wp ) * ta2 * va * d_tmrt2 + &
2081	( -1.50743064e-09_wp ) * ta3 * va * d_tmrt2 + &
2082	( -1.56236307e-05_wp ) * va2 * d_tmrt2 + &
2083	( -1.33895614e-07_wp ) * ta * va2 * d_tmrt2 + &
2084	( 2.49709824e-09_wp ) * ta2 * va2 * d_tmrt2 + &
2085	( 6.51711721e-07_wp ) * va3 * d_tmrt2 + &
2086	( 1.94960053e-09_wp ) * ta * va3 * d_tmrt2 + &
2087	( -1.00361113e-08_wp ) * va4 * d_tmrt2 + &
2088	( -1.21206673e-05_wp ) * d_tmrt3 + &
2089	( -2.18203660e-07_wp ) * ta * d_tmrt3 + &
2090	( 7.51269482e-09_wp ) * ta2 * d_tmrt3 + &
2091	( 9.79063848e-11_wp ) * ta3 * d_tmrt3 + &
2092	( 1.25006734e-06_wp ) * va * d_tmrt3 + &
2093	( -1.81584736e-09_wp ) * ta * va * d_tmrt3 + &
2094	( -3.52197671e-10_wp ) * ta2 * va * d_tmrt3 + &
2095	( -3.36514630e-08_wp ) * va2 * d_tmrt3 + &
2096	( 1.35908359e-10_wp ) * ta * va2 * d_tmrt3 + &
2097	( 4.17032620e-10_wp ) * va3 * d_tmrt3 + &
2098	( -1.30369025e-09_wp ) * d_tmrt4 + &
2099	( 4.13908461e-10_wp ) * ta * d_tmrt4 + &
2100	( 9.22652254e-12_wp ) * ta2 * d_tmrt4 + &
2101	( -5.08220384e-09_wp ) * va * d_tmrt4 + &
2102	( -2.24730961e-11_wp ) * ta * va * d_tmrt4 + &
2103	( 1.17139133e-10_wp ) * va2 * d_tmrt4 + &
2104	( 6.62154879e-10_wp ) * d_tmrt5 + &
2105	( 4.03863260e-13_wp ) * ta * d_tmrt5 + &
2106	( 1.95087203e-12_wp ) * va * d_tmrt5 + &
2107	( -4.73602469e-12_wp ) * d_tmrt6
2108
2109	part_pa = ( 5.12733497e+00_wp ) * pa + &
2110	( -3.12788561e-01_wp ) * ta * pa + &
2111	( -1.96701861e-02_wp ) * ta2 * pa + &
2112	( 9.99690870e-04_wp ) * ta3 * pa + &
2113	( 9.51738512e-06_wp ) * ta4 * pa + &
2114	( -4.66426341e-07_wp ) * ta5 * pa + &
2115	( 5.48050612e-01_wp ) * va * pa + &
2116	( -3.30552823e-03_wp ) * ta * va * pa + &
2117	( -1.64119440e-03_wp ) * ta2 * va * pa + &
2118	( -5.16670694e-06_wp ) * ta3 * va * pa + &
2119	( 9.52692432e-07_wp ) * ta4 * va * pa + &
2120	( -4.29223622e-02_wp ) * va2 * pa + &
2121	( 5.00845667e-03_wp ) * ta * va2 * pa + &
2122	( 1.00601257e-06_wp ) * ta2 * va2 * pa + &
2123	( -1.81748644e-06_wp ) * ta3 * va2 * pa + &
2124	( -1.25813502e-03_wp ) * va3 * pa + &
2125	( -1.79330391e-04_wp ) * ta * va3 * pa + &
2126	( 2.34994441e-06_wp ) * ta2 * va3 * pa + &
2127	( 1.29735808e-04_wp ) * va4 * pa + &
2128	( 1.29064870e-06_wp ) * ta * va4 * pa + &
2129	( -2.28558686e-06_wp ) * va5 * pa + &
2130	( -3.69476348e-02_wp ) * d_tmrt * pa + &
2131	( 1.62325322e-03_wp ) * ta * d_tmrt * pa + &
2132	( -3.14279680e-05_wp ) * ta2 * d_tmrt * pa + &
2133	( 2.59835559e-06_wp ) * ta3 * d_tmrt * pa + &
2134	( -4.77136523e-08_wp ) * ta4 * d_tmrt * pa + &
2135	( 8.64203390e-03_wp ) * va * d_tmrt * pa + &
2136	( -6.87405181e-04_wp ) * ta * va * d_tmrt * pa + &
2137	( -9.13863872e-06_wp ) * ta2 * va * d_tmrt * pa + &
2138	( 5.15916806e-07_wp ) * ta3 * va * d_tmrt * pa + &
2139	( -3.59217476e-05_wp ) * va2 * d_tmrt * pa + &
2140	( 3.28696511e-05_wp ) * ta * va2 * d_tmrt * pa + &
2141	( -7.10542454e-07_wp ) * ta2 * va2 * d_tmrt * pa + &
2142	( -1.24382300e-05_wp ) * va3 * d_tmrt * pa + &
2143	( -7.38584400e-09_wp ) * ta * va3 * d_tmrt * pa + &
2144	( 2.20609296e-07_wp ) * va4 * d_tmrt * pa + &
2145	( -7.32469180e-04_wp ) * d_tmrt2 * pa + &
2146	( -1.87381964e-05_wp ) * ta * d_tmrt2 * pa + &
2147	( 4.80925239e-06_wp ) * ta2 * d_tmrt2 * pa + &
2148	( -8.75492040e-08_wp ) * ta3 * d_tmrt2 * pa + &
2149	( 2.77862930e-05_wp ) * va * d_tmrt2 * pa + &
2150	( -5.06004592e-06_wp ) * ta * va * d_tmrt2 * pa + &
2151	( 1.14325367e-07_wp ) * ta2 * va * d_tmrt2 * pa + &
2152	( 2.53016723e-06_wp ) * va2 * d_tmrt2 * pa + &
2153	( -1.72857035e-08_wp ) * ta * va2 * d_tmrt2 * pa + &
2154	( -3.95079398e-08_wp ) * va3 * d_tmrt2 * pa + &
2155	( -3.59413173e-07_wp ) * d_tmrt3 * pa + &
2156	( 7.04388046e-07_wp ) * ta * d_tmrt3 * pa + &
2157	( -1.89309167e-08_wp ) * ta2 * d_tmrt3 * pa + &
2158	( -4.79768731e-07_wp ) * va * d_tmrt3 * pa + &
2159	( 7.96079978e-09_wp ) * ta * va * d_tmrt3 * pa + &
2160	( 1.62897058e-09_wp ) * va2 * d_tmrt3 * pa + &
2161	( 3.94367674e-08_wp ) * d_tmrt4 * pa + &
2162	( -1.18566247e-09_wp ) * ta * d_tmrt4 * pa + &
2163	( 3.34678041e-10_wp ) * va * d_tmrt4 * pa + &
2164	( -1.15606447e-10_wp ) * d_tmrt5 * pa
2165
2166	part_pa2 = ( -2.80626406e+00_wp ) * pa2 + &
2167	( 5.48712484e-01_wp ) * ta * pa2 + &
2168	( -3.99428410e-03_wp ) * ta2 * pa2 + &
2169	( -9.54009191e-04_wp ) * ta3 * pa2 + &
2170	( 1.93090978e-05_wp ) * ta4 * pa2 + &
2171	( -3.08806365e-01_wp ) * va * pa2 + &
2172	( 1.16952364e-02_wp ) * ta * va * pa2 + &
2173	( 4.95271903e-04_wp ) * ta2 * va * pa2 + &
2174	( -1.90710882e-05_wp ) * ta3 * va * pa2 + &
2175	( 2.10787756e-03_wp ) * va2 * pa2 + &
2176	( -6.98445738e-04_wp ) * ta * va2 * pa2 + &
2177	( 2.30109073e-05_wp ) * ta2 * va2 * pa2 + &
2178	( 4.17856590e-04_wp ) * va3 * pa2 + &
2179	( -1.27043871e-05_wp ) * ta * va3 * pa2 + &
2180	( -3.04620472e-06_wp ) * va4 * pa2 + &
2181	( 5.14507424e-02_wp ) * d_tmrt * pa2 + &
2182	( -4.32510997e-03_wp ) * ta * d_tmrt * pa2 + &
2183	( 8.99281156e-05_wp ) * ta2 * d_tmrt * pa2 + &
2184	( -7.14663943e-07_wp ) * ta3 * d_tmrt * pa2 + &
2185	( -2.66016305e-04_wp ) * va * d_tmrt * pa2 + &
2186	( 2.63789586e-04_wp ) * ta * va * d_tmrt * pa2 + &
2187	( -7.01199003e-06_wp ) * ta2 * va * d_tmrt * pa2 + &
2188	( -1.06823306e-04_wp ) * va2 * d_tmrt * pa2 + &
2189	( 3.61341136e-06_wp ) * ta * va2 * d_tmrt * pa2 + &
2190	( 2.29748967e-07_wp ) * va3 * d_tmrt * pa2 + &
2191	( 3.04788893e-04_wp ) * d_tmrt2 * pa2 + &
2192	( -6.42070836e-05_wp ) * ta * d_tmrt2 * pa2 + &
2193	( 1.16257971e-06_wp ) * ta2 * d_tmrt2 * pa2 + &
2194	( 7.68023384e-06_wp ) * va * d_tmrt2 * pa2 + &
2195	( -5.47446896e-07_wp ) * ta * va * d_tmrt2 * pa2 + &
2196	( -3.59937910e-08_wp ) * va2 * d_tmrt2 * pa2 + &
2197	( -4.36497725e-06_wp ) * d_tmrt3 * pa2 + &
2198	( 1.68737969e-07_wp ) * ta * d_tmrt3 * pa2 + &
2199	( 2.67489271e-08_wp ) * va * d_tmrt3 * pa2 + &
2200	( 3.23926897e-09_wp ) * d_tmrt4 * pa2
2201
2202	part_pa3 = ( -3.53874123e-02_wp ) * pa3 + &
2203	( -2.21201190e-01_wp ) * ta * pa3 + &
2204	( 1.55126038e-02_wp ) * ta2 * pa3 + &
2205	( -2.63917279e-04_wp ) * ta3 * pa3 + &
2206	( 4.53433455e-02_wp ) * va * pa3 + &
2207	( -4.32943862e-03_wp ) * ta * va * pa3 + &
2208	( 1.45389826e-04_wp ) * ta2 * va * pa3 + &
2209	( 2.17508610e-04_wp ) * va2 * pa3 + &
2210	( -6.66724702e-05_wp ) * ta * va2 * pa3 + &
2211	( 3.33217140e-05_wp ) * va3 * pa3 + &
2212	( -2.26921615e-03_wp ) * d_tmrt * pa3 + &
2213	( 3.80261982e-04_wp ) * ta * d_tmrt * pa3 + &
2214	( -5.45314314e-09_wp ) * ta2 * d_tmrt * pa3 + &
2215	( -7.96355448e-04_wp ) * va * d_tmrt * pa3 + &
2216	( 2.53458034e-05_wp ) * ta * va * d_tmrt * pa3 + &
2217	( -6.31223658e-06_wp ) * va2 * d_tmrt * pa3 + &
2218	( 3.02122035e-04_wp ) * d_tmrt2 * pa3 + &
2219	( -4.77403547e-06_wp ) * ta * d_tmrt2 * pa3 + &
2220	( 1.73825715e-06_wp ) * va * d_tmrt2 * pa3 + &
2221	( -4.09087898e-07_wp ) * d_tmrt3 * pa3
2222
2223	part_pa46 = ( 6.14155345e-01_wp ) * pa4 + &
2224	( -6.16755931e-02_wp ) * ta * pa4 + &
2225	( 1.33374846e-03_wp ) * ta2 * pa4 + &
2226	( 3.55375387e-03_wp ) * va * pa4 + &
2227	( -5.13027851e-04_wp ) * ta * va * pa4 + &
2228	( 1.02449757e-04_wp ) * va2 * pa4 + &
2229	( -1.48526421e-03_wp ) * d_tmrt * pa4 + &
2230	( -4.11469183e-05_wp ) * ta * d_tmrt * pa4 + &
2231	( -6.80434415e-06_wp ) * va * d_tmrt * pa4 + &
2232	( -9.77675906e-06_wp ) * d_tmrt2 * pa4 + &
2233	( 8.82773108e-02_wp ) * pa5 + &
2234	( -3.01859306e-03_wp ) * ta * pa5 + &
2235	( 1.04452989e-03_wp ) * va * pa5 + &
2236	( 2.47090539e-04_wp ) * d_tmrt * pa5 + &
2237	( 1.48348065e-03_wp ) * pa6
2238	!
2239	!-- Calculate 6th order polynomial as approximation
2240	utci_ij = ta + part_ta + part_va + part_d_tmrt + part_pa + part_pa2 + part_pa3 + part_pa46
2241	!
2242	!-- Consider offset in result
2243	utci_ij = utci_ij + offset
2244
2245	END SUBROUTINE calculate_utci_static
2246
2247
2248
2249
2250	!--------------------------------------------------------------------------------------------------!
2251	! Description:
2252	! ------------
2253	!> Calculate_perct_static: Estimation of perceived temperature (PT, degree_C)
2254	!> Value of perct is the Perceived Temperature, degree centigrade
2255	!--------------------------------------------------------------------------------------------------!
2256	SUBROUTINE calculate_perct_static( ta, vp, ws, tmrt, pair, clo, perct_ij )
2257
2258	IMPLICIT NONE
2259	!
2260	!-- Type of input of the argument list
2261	REAL(wp), INTENT ( IN ) :: pair !< Local barometric air pressure (hPa)
2262	REAL(wp), INTENT ( IN ) :: ta !< Local air temperature (degC)
2263	REAL(wp), INTENT ( IN ) :: tmrt !< Local mean radiant temperature (degC)
2264	REAL(wp), INTENT ( IN ) :: vp !< Local vapour pressure (hPa)
2265	REAL(wp), INTENT ( IN ) :: ws !< Local wind velocitry (m/s)
2266	!
2267	!-- Type of output of the argument list
2268	REAL(wp), INTENT ( OUT ) :: clo !< Clothing index (dimensionless)
2269	REAL(wp), INTENT ( OUT ) :: perct_ij !< Perceived temperature (degC)
2270	!
2271	!-- Parameters for standard "Klima-Michel"
2272	REAL(wp), PARAMETER :: actlev = 134.6862_wp !< Workload by activity per standardized surface
2273	!< (A_Du)
2274	REAL(wp), PARAMETER :: eta = 0.0_wp !< Mechanical work efficiency for walking on flat
2275	!< ground (compare to Fanger (1972) pp 24f)
2276	!
2277	!-- Type of program variables
2278	INTEGER(iwp) :: ncount !< running index
2279	INTEGER(iwp) :: nerr_cold !< error number (cold conditions)
2280	INTEGER(iwp) :: nerr !< error number
2281
2282	LOGICAL :: sultrieness
2283
2284	REAL(wp), PARAMETER :: eps = 0.0005 !< Accuracy in clothing insulation (clo) for evaluation the
2285	!< root of Fanger's PMV (pmva=0)
2286
2287	REAL(wp) :: clon !< clo for neutral conditions (clo)
2288	REAL(wp) :: d_pmv !< PMV deviation (dimensionless --> PMV)
2289	REAL(wp) :: dgtcm !< Mean deviation dependent on perct
2290	REAL(wp) :: dgtcstd !< Mean deviation plus its standard deviation
2291	REAL(wp) :: d_std !< factor to threshold for sultriness
2292	REAL(wp) :: ireq_minimal !< Minimal required clothing insulation (clo)
2293	REAL(wp) :: pmv_s !< Fangers predicted mean vote for summer clothing
2294	REAL(wp) :: pmv_w !< Fangers predicted mean vote for winter clothing
2295	REAL(wp) :: pmva !< adjusted predicted mean vote
2296	REAL(wp) :: pmvs !< pred. mean vote considering sultrieness
2297	REAL(wp) :: ptc !< perceived temp. for cold conditions (degree_C)
2298	REAL(wp) :: sclo !< summer clothing insulation
2299	REAL(wp) :: svp_ta !< saturation vapor pressure (hPa)
2300	REAL(wp) :: sult_lim !< threshold for sultrieness (hPa)
2301	REAL(wp) :: wclo !< winter clothing insulation
2302
2303	!
2304	!-- Initialise
2305	perct_ij = bio_fill_value
2306
2307	nerr = 0_iwp
2308	ncount = 0_iwp
2309	sultrieness = .FALSE.
2310	!
2311	!-- Tresholds: clothing insulation (account for model inaccuracies)
2312	!-- Summer clothing
2313	sclo = 0.44453_wp
2314	!
2315	!-- Winter clothing
2316	wclo = 1.76267_wp
2317	!
2318	!-- Eecision: first calculate for winter or summer clothing
2319	IF ( ta <= 10.0_wp ) THEN
2320	!
2321	!-- First guess: winter clothing insulation: cold stress
2322	clo = wclo
2323	CALL fanger ( ta, tmrt, vp, ws, pair, clo, actlev, eta, pmva )
2324	pmv_w = pmva
2325
2326	IF ( pmva > 0.0_wp ) THEN
2327	!
2328	!-- Case summer clothing insulation: heat load ?
2329	clo = sclo
2330	CALL fanger ( ta, tmrt, vp, ws, pair, clo, actlev, eta, pmva )
2331	pmv_s = pmva
2332	IF ( pmva <= 0.0_wp ) THEN
2333	!
2334	!-- Case: comfort achievable by varying clothing insulation between winter and summer set
2335	!-- values
2336	CALL iso_ridder ( ta, tmrt, vp, ws, pair, actlev, eta, sclo, pmv_s, wclo, pmv_w, eps, &
2337	pmva, ncount, clo )
2338	IF ( ncount < 0_iwp ) THEN
2339	nerr = -1_iwp
2340	RETURN
2341	ENDIF
2342	ELSE IF ( pmva > 0.06_wp ) THEN
2343	clo = 0.5_wp
2344	CALL fanger ( ta, tmrt, vp, ws, pair, clo, actlev, eta, pmva )
2345	ENDIF
2346	ELSE IF ( pmva < - 0.11_wp ) THEN
2347	clo = 1.75_wp
2348	CALL fanger ( ta, tmrt, vp, ws, pair, clo, actlev, eta, pmva )
2349	ENDIF
2350	ELSE
2351	!
2352	!-- First guess: summer clothing insulation: heat load
2353	clo = sclo
2354	CALL fanger ( ta, tmrt, vp, ws, pair, clo, actlev, eta, pmva )
2355	pmv_s = pmva
2356
2357	IF ( pmva < 0.0_wp ) THEN
2358	!
2359	!-- Case winter clothing insulation: cold stress ?
2360	clo = wclo
2361	CALL fanger ( ta, tmrt, vp, ws, pair, clo, actlev, eta, pmva )
2362	pmv_w = pmva
2363
2364	IF ( pmva >= 0.0_wp ) THEN
2365	!
2366	!-- Case: comfort achievable by varying clothing insulation between winter and summer set
2367	!-- values
2368	CALL iso_ridder ( ta, tmrt, vp, ws, pair, actlev, eta, sclo, pmv_s, wclo, pmv_w, eps, &
2369	pmva, ncount, clo )
2370	IF ( ncount < 0_iwp ) THEN
2371	nerr = -1_iwp
2372	RETURN
2373	ENDIF
2374	ELSE IF ( pmva < - 0.11_wp ) THEN
2375	clo = 1.75_wp
2376	CALL fanger ( ta, tmrt, vp, ws, pair, clo, actlev, eta, pmva )
2377	ENDIF
2378	ELSE IF ( pmva > 0.06_wp ) THEN
2379	clo = 0.5_wp
2380	CALL fanger ( ta, tmrt, vp, ws, pair, clo, actlev, eta, pmva )
2381	ENDIF
2382
2383	ENDIF
2384	!
2385	!-- Determine perceived temperature by regression equation + adjustments
2386	pmvs = pmva
2387	CALL perct_regression( pmva, clo, perct_ij )
2388	ptc = perct_ij
2389	IF ( clo >= 1.75_wp .AND. pmva <= - 0.11_wp ) THEN
2390	!
2391	!-- Adjust for cold conditions according to Gagge 1986
2392	CALL dpmv_cold ( pmva, ta, ws, tmrt, nerr_cold, d_pmv )
2393	IF ( nerr_cold > 0_iwp ) nerr = -5_iwp
2394	pmvs = pmva - d_pmv
2395	IF ( pmvs > - 0.11_wp ) THEN
2396	d_pmv = 0.0_wp
2397	pmvs = - 0.11_wp
2398	ENDIF
2399	CALL perct_regression( pmvs, clo, perct_ij )
2400	ENDIF
2401	! clo_fanger = clo
2402	clon = clo
2403	IF ( clo > 0.5_wp .AND. perct_ij <= 8.73_wp ) THEN
2404	!
2405	!-- Required clothing insulation (ireq) is exclusively defined for perceived temperatures (perct)
2406	!-- less 10 (C) for a reference wind of 0.2 m/s according to 8.73 (C) for 0.1 m/s.
2407	clon = ireq_neutral ( perct_ij, ireq_minimal, nerr )
2408	clo = clon
2409	ENDIF
2410	CALL calc_sultr( ptc, dgtcm, dgtcstd, sult_lim )
2411	sultrieness = .FALSE.
2412	d_std = -99.0_wp
2413	IF ( pmva > 0.06_wp .AND. clo <= 0.5_wp ) THEN
2414	!
2415	!-- Adjust for warm/humid conditions according to Gagge 1986
2416	CALL saturation_vapor_pressure ( ta, svp_ta )
2417	d_pmv = deltapmv ( pmva, ta, vp, svp_ta, tmrt, ws, nerr )
2418	pmvs = pmva + d_pmv
2419	CALL perct_regression( pmvs, clo, perct_ij )
2420	IF ( sult_lim < 99.0_wp ) THEN
2421	IF ( (perct_ij - ptc) > sult_lim ) sultrieness = .TRUE.
2422	!
2423	!-- Set factor to threshold for sultriness
2424	IF ( ABS( dgtcstd ) > 0.00001_wp ) THEN
2425	d_std = ( ( perct_ij - ptc ) - dgtcm ) / dgtcstd
2426	ENDIF
2427	ENDIF
2428	ENDIF
2429
2430	END SUBROUTINE calculate_perct_static
2431
2432	!--------------------------------------------------------------------------------------------------!
2433	! Description:
2434	! ------------
2435	!> The SUBROUTINE calculates the (saturation) water vapour pressure (hPa = hecto Pascal) for a given
2436	!> temperature ta (degC).
2437	!>'ta' can be the air temperature or the dew point temperature. The first will result in the current
2438	!> vapor pressure (hPa), the latter will calulate the saturation vapor pressure (hPa).
2439	!--------------------------------------------------------------------------------------------------!
2440	SUBROUTINE saturation_vapor_pressure( ta, svp_ta )
2441
2442	IMPLICIT NONE
2443
2444	REAL(wp), INTENT ( IN ) :: ta !< ambient air temperature (degC)
2445	REAL(wp), INTENT ( OUT ) :: svp_ta !< water vapour pressure (hPa)
2446
2447	REAL(wp) :: b
2448	REAL(wp) :: c
2449
2450
2451	IF ( ta < 0.0_wp ) THEN
2452	!
2453	!-- ta < 0 (degC): water vapour pressure over ice
2454	b = 17.84362_wp
2455	c = 245.425_wp
2456	ELSE
2457	!
2458	!-- ta >= 0 (degC): water vapour pressure over water
2459	b = 17.08085_wp
2460	c = 234.175_wp
2461	ENDIF
2462	!
2463	!-- Saturation water vapour pressure
2464	svp_ta = 6.1078_wp * EXP( b * ta / ( c + ta ) )
2465
2466	END SUBROUTINE saturation_vapor_pressure
2467
2468	!--------------------------------------------------------------------------------------------------!
2469	! Description:
2470	! ------------
2471	!> Find the clothing insulation value clo_res (clo) to make Fanger's Predicted Mean Vote (PMV) equal
2472	!> comfort (pmva=0) for actual meteorological conditions (ta,tmrt, vp, ws, pair) and values of
2473	!> individual's activity level.
2474	!--------------------------------------------------------------------------------------------------!
2475	SUBROUTINE iso_ridder( ta, tmrt, vp, ws, pair, actlev, eta, sclo, pmv_s, wclo, pmv_w, eps, pmva, &
2476	nerr, clo_res )
2477
2478	IMPLICIT NONE
2479	!
2480	!-- Input variables of argument list:
2481	REAL(wp), INTENT ( IN ) :: actlev !< Individuals activity level per unit surface area (W/m2)
2482	REAL(wp), INTENT ( IN ) :: eps !< (0.05) accuracy in clothing insulation (clo) for evaluation the root of Fanger's PMV (pmva=0)
2483	REAL(wp), INTENT ( IN ) :: eta !< Individuals work efficiency (dimensionless)
2484	REAL(wp), INTENT ( IN ) :: pair !< Barometric air pressure (hPa)
2485	REAL(wp), INTENT ( IN ) :: pmv_s !< Fanger's PMV corresponding to sclo
2486	REAL(wp), INTENT ( IN ) :: pmv_w !< Fanger's PMV corresponding to wclo
2487	REAL(wp), INTENT ( IN ) :: sclo !< Lower threshold of bracketing clothing insulation (clo)
2488	REAL(wp), INTENT ( IN ) :: ta !< Ambient temperature (degC)
2489	REAL(wp), INTENT ( IN ) :: tmrt !< Mean radiant temperature (degC)
2490	REAL(wp), INTENT ( IN ) :: vp !< Water vapour pressure (hPa)
2491	REAL(wp), INTENT ( IN ) :: wclo !< Upper threshold of bracketing clothing insulation (clo)
2492	REAL(wp), INTENT ( IN ) :: ws !< Wind speed (m/s) 1 m above ground
2493	!
2494	!-- Output variables of argument list:
2495	INTEGER(iwp), INTENT ( OUT ) :: nerr !< Error status / quality flag
2496	!< nerr >= 0, o.k., and nerr is the number of iterations for convergence
2497	!< nerr = -1: error = malfunction of Ridder's convergence method
2498	!< nerr = -2: error = maximum iterations (max_iteration) exceeded
2499	!< nerr = -3: error = root not bracketed between sclo and wclo
2500
2501	REAL(wp), INTENT ( OUT ) :: clo_res !< Resulting clothing insulation value (clo)
2502	REAL(wp), INTENT ( OUT ) :: pmva !< 0 (set to zero, because clo is evaluated for comfort)
2503	!
2504	!-- Type of program variables
2505	INTEGER(iwp), PARAMETER :: max_iteration = 15_iwp !< max number of iterations
2506	INTEGER(iwp) :: j !< running index
2507
2508	REAL(wp), PARAMETER :: guess_0 = -1.11e30_wp !< initial guess
2509
2510	REAL(wp) :: clo_lower !< lower limit of clothing insulation (clo)
2511	REAL(wp) :: clo_upper !< upper limit of clothing insulation (clo)
2512	REAL(wp) :: sroot !< sqrt of PMV-guess
2513	REAL(wp) :: x_average !< average of x_lower and x_upper (clo)
2514	REAL(wp) :: x_lower !< lower guess for clothing insulation (clo)
2515	REAL(wp) :: x_new !< preliminary result for clothing insulation (clo)
2516	REAL(wp) :: x_ridder !< current guess for clothing insulation (clo)
2517	REAL(wp) :: x_upper !< upper guess for clothing insulation (clo)
2518	REAL(wp) :: y_average !< average of y_lower and y_upper
2519	REAL(wp) :: y_new !< preliminary result for pred. mean vote
2520	REAL(wp) :: y_lower !< predicted mean vote for summer clothing
2521	REAL(wp) :: y_upper !< predicted mean vote for winter clothing
2522	!
2523	!-- Initialise
2524	nerr = 0_iwp
2525	!
2526	!-- Set pmva = 0 (comfort): Root of PMV depending on clothing insulation
2527	x_ridder = bio_fill_value
2528	pmva = 0.0_wp
2529	clo_lower = sclo
2530	y_lower = pmv_s
2531	clo_upper = wclo
2532	y_upper = pmv_w
2533	IF ( ( y_lower > 0.0_wp .AND. y_upper < 0.0_wp ) .OR. &
2534	( y_lower < 0.0_wp .AND. y_upper > 0.0_wp ) ) THEN
2535	x_lower = clo_lower
2536	x_upper = clo_upper
2537	x_ridder = guess_0
2538
2539	DO j = 1_iwp, max_iteration
2540	x_average = 0.5_wp * ( x_lower + x_upper )
2541	CALL fanger ( ta, tmrt, vp, ws, pair, x_average, actlev, eta, y_average )
2542	sroot = SQRT( y_average*2 - y_lower y_upper )
2543	IF ( ABS( sroot ) < 0.00001_wp ) THEN
2544	clo_res = x_average
2545	nerr = j
2546	RETURN
2547	ENDIF
2548	x_new = x_average + ( x_average - x_lower ) * &
2549	( SIGN ( 1.0_wp, y_lower - y_upper ) * y_average / sroot )
2550	IF ( ABS( x_new - x_ridder ) <= eps ) THEN
2551	clo_res = x_ridder
2552	nerr = j
2553	RETURN
2554	ENDIF
2555	x_ridder = x_new
2556	CALL fanger ( ta, tmrt, vp, ws, pair, x_ridder, actlev, eta, y_new )
2557	IF ( ABS( y_new ) < 0.00001_wp ) THEN
2558	clo_res = x_ridder
2559	nerr = j
2560	RETURN
2561	ENDIF
2562	IF ( ABS( SIGN( y_average, y_new ) - y_average ) > 0.00001_wp ) THEN
2563	x_lower = x_average
2564	y_lower = y_average
2565	x_upper = x_ridder
2566	y_upper = y_new
2567	ELSE IF ( ABS( SIGN( y_lower, y_new ) - y_lower ) > 0.00001_wp ) THEN
2568	x_upper = x_ridder
2569	y_upper = y_new
2570	ELSE IF ( ABS( SIGN( y_upper, y_new ) - y_upper ) > 0.00001_wp ) THEN
2571	x_lower = x_ridder
2572	y_lower = y_new
2573	ELSE
2574	!
2575	!-- Never get here in x_ridder: SINgularity in y
2576	nerr = -1_iwp
2577	clo_res = x_ridder
2578	RETURN
2579	ENDIF
2580	IF ( ABS( x_upper - x_lower ) <= eps ) THEN
2581	clo_res = x_ridder
2582	nerr = j
2583	RETURN
2584	ENDIF
2585	ENDDO
2586	!
2587	!-- x_ridder exceed maximum iterations
2588	nerr = -2_iwp
2589	clo_res = y_new
2590	RETURN
2591	ELSE IF ( ABS( y_lower ) < 0.00001_wp ) THEN
2592	x_ridder = clo_lower
2593	ELSE IF ( ABS( y_upper ) < 0.00001_wp ) THEN
2594	x_ridder = clo_upper
2595	ELSE
2596	!
2597	!-- x_ridder not bracketed by u_clo and o_clo
2598	nerr = -3_iwp
2599	clo_res = x_ridder
2600	RETURN
2601	ENDIF
2602
2603	END SUBROUTINE iso_ridder
2604
2605	!--------------------------------------------------------------------------------------------------!
2606	! Description:
2607	! ------------
2608	!> Regression relations between perceived temperature (perct) and (adjusted) PMV. The regression
2609	!> presumes the Klima-Michel settings for reference individual and reference environment.
2610	!--------------------------------------------------------------------------------------------------!
2611	SUBROUTINE perct_regression( pmv, clo, perct_ij )
2612
2613	IMPLICIT NONE
2614
2615	REAL(wp), INTENT ( IN ) :: clo !< clothing insulation index (clo)
2616	REAL(wp), INTENT ( IN ) :: pmv !< Fangers predicted mean vote (dimensionless)
2617
2618	REAL(wp), INTENT ( OUT ) :: perct_ij !< perct (degC) corresponding to given PMV / clo
2619
2620	IF ( pmv <= - 0.11_wp ) THEN
2621	perct_ij = 5.805_wp + 12.6784_wp * pmv
2622	ELSE
2623	IF ( pmv >= + 0.01_wp ) THEN
2624	perct_ij = 16.826_wp + 6.163_wp * pmv
2625	ELSE
2626	perct_ij = 21.258_wp - 9.558_wp * clo
2627	ENDIF
2628	ENDIF
2629
2630	END SUBROUTINE perct_regression
2631
2632	!--------------------------------------------------------------------------------------------------!
2633	! Description:
2634	! ------------
2635	!> FANGER.F90
2636	!>
2637	!> SI-VERSION: ACTLEV W m-2, VAPOUR PRESSURE hPa
2638	!> Calculates the current Predicted Mean Vote according to Fanger.
2639	!> The case of free convection (ws < 0.1 m/s) is dealt with ws = 0.1 m/s
2640	!--------------------------------------------------------------------------------------------------!
2641	SUBROUTINE fanger( ta, tmrt, pa, in_ws, pair, in_clo, actlev, eta, pmva )
2642
2643	IMPLICIT NONE
2644	!
2645	!-- Input variables of argument list:
2646	REAL(wp), INTENT ( IN ) :: actlev !< Individuals activity level per unit surface area (W/m2)
2647	REAL(wp), INTENT ( IN ) :: eta !< Individuals mechanical work efficiency (dimensionless)
2648	REAL(wp), INTENT ( IN ) :: in_clo !< Clothing insulation (clo)
2649	REAL(wp), INTENT ( IN ) :: in_ws !< Wind speed (m/s) 1 m above ground
2650	REAL(wp), INTENT ( IN ) :: pa !< Water vapour pressure (hPa)
2651	REAL(wp), INTENT ( IN ) :: pair !< Barometric pressure (hPa) at site
2652	REAL(wp), INTENT ( IN ) :: ta !< Ambient air temperature (degC)
2653	REAL(wp), INTENT ( IN ) :: tmrt !< Mean radiant temperature (degC)
2654
2655	!
2656	!-- Output variables of argument list:
2657	REAL(wp), INTENT ( OUT ) :: pmva !< Actual Predicted Mean Vote (PMV,
2658	!< dimensionless) according to Fanger corresponding to meteorological
2659	!< (ta,tmrt,pa,ws,pair) and individual variables (clo, actlev, eta)
2660	!
2661	!-- Internal variables
2662	INTEGER(iwp) :: i !< running index
2663
2664	REAL(wp) :: activity !< persons activity (must stay == actlev, W)
2665	REAL(wp) :: bc !< preliminary result storage
2666	REAL(wp) :: cc !< preliminary result storage
2667	REAL(wp) :: clo !< clothing insulation index (clo)
2668	REAL(wp) :: dc !< preliminary result storage
2669	REAL(wp) :: ec !< preliminary result storage
2670	REAL(wp) :: f_cl !< Increase in surface due to clothing (factor)
2671	REAL(wp) :: gc !< preliminary result storage
2672	REAL(wp) :: heat_convection !< energy loss by autocnvection (W)
2673	REAL(wp) :: hr !< radiational heat resistence
2674	REAL(wp) :: t_clothing !< clothing temperature (degree_C)
2675	REAL(wp) :: t_skin_aver !< average skin temperature (degree_C)
2676	REAL(wp) :: ws !< wind speed (m/s)
2677	REAL(wp) :: z1 !< Empiric factor for the adaption of the heat
2678	!< ballance equation to the psycho-physical scale (Equ. 40 in FANGER)
2679	REAL(wp) :: z2 !< Water vapour diffution through the skin
2680	REAL(wp) :: z3 !< Sweat evaporation from the skin surface
2681	REAL(wp) :: z4 !< Loss of latent heat through respiration
2682	REAL(wp) :: z5 !< Loss of radiational heat
2683	REAL(wp) :: z6 !< Heat loss through forced convection
2684
2685	!
2686	!-- Clo must be > 0. to avoid div. by 0!
2687	clo = in_clo
2688	IF ( clo <= 0.0_wp ) clo = .001_wp
2689	!
2690	!-- f_cl = increase in surface due to clothing
2691	f_cl = 1.0_wp + 0.15_wp * clo
2692	!
2693	!-- Case of free convection (ws < 0.1 m/s ) not considered
2694	ws = in_ws
2695	IF ( ws < 0.1_wp ) THEN
2696	ws = 0.1_wp
2697	ENDIF
2698	!
2699	!-- Heat_convection = forced convection
2700	heat_convection = 12.1_wp * SQRT( ws * pair / 1013.25_wp )
2701	!
2702	!-- Activity = inner heat production per standardized surface
2703	activity = actlev * ( 1.0_wp - eta )
2704	!
2705	!-- t_skin_aver = average skin temperature
2706	t_skin_aver = 35.7_wp - 0.0275_wp * activity
2707	!
2708	!-- Calculation of constants for evaluation below
2709	bc = 0.155_wp * clo * 3.96_wp * 10.0_wp*( -8 ) f_cl
2710	cc = f_cl * heat_convection
2711	ec = 0.155_wp * clo
2712	dc = ( 1.0_wp + ec * cc ) / bc
2713	gc = ( t_skin_aver + bc * ( tmrt + degc_to_k )*4 + ec cc * ta ) / bc
2714	!
2715	!-- Calculation of clothing surface temperature (t_clothing) based on Newton-approximation with air
2716	!-- temperature as initial guess.
2717	t_clothing = ta
2718	DO i = 1, 3
2719	t_clothing = t_clothing - ( ( t_clothing + degc_to_k )*4 + t_clothing dc - gc ) / &
2720	( 4.0_wp * ( t_clothing + degc_to_k )**3 + dc )
2721	ENDDO
2722	!
2723	!-- Empiric factor for the adaption of the heat ballance equation to the psycho-physical scale (Equ.
2724	!-- 40 in FANGER)
2725	z1 = ( 0.303_wp * EXP( - 0.036_wp * actlev ) + 0.0275_wp )
2726	!
2727	!-- Water vapour diffution through the skin
2728	z2 = 0.31_wp * ( 57.3_wp - 0.07_wp * activity-pa )
2729	!
2730	!-- Sweat evaporation from the skin surface
2731	z3 = 0.42_wp * ( activity - 58.0_wp )
2732	!
2733	!-- Loss of latent heat through respiration
2734	z4 = 0.0017_wp * actlev * ( 58.7_wp - pa ) + 0.0014_wp * actlev * &
2735	( 34.0_wp - ta )
2736	!
2737	!-- Loss of radiational heat
2738	z5 = 3.96e-8_wp * f_cl * ( ( t_clothing + degc_to_k )4 - ( tmrt + degc_to_k )4 )
2739	IF ( ABS( t_clothing - tmrt ) > 0.0_wp ) THEN
2740	hr = z5 / f_cl / ( t_clothing - tmrt )
2741	ELSE
2742	hr = 0.0_wp
2743	ENDIF
2744	!
2745	!-- Heat loss through forced convection cc*(t_clothing-TT)
2746	z6 = cc * ( t_clothing - ta )
2747	!
2748	!-- Predicted Mean Vote
2749	pmva = z1 * ( activity - z2 - z3 - z4 - z5 - z6 )
2750
2751	END SUBROUTINE fanger
2752
2753	!--------------------------------------------------------------------------------------------------!
2754	! Description:
2755	! ------------
2756	!> For pmva > 0 and clo =0.5 the increment (deltapmv) is calculated that converts pmva into Gagge's
2757	!> et al. (1986) PMV*.
2758	!--------------------------------------------------------------------------------------------------!
2759	REAL(wp) FUNCTION deltapmv( pmva, ta, vp, svp_ta, tmrt, ws, nerr )
2760
2761	IMPLICIT NONE
2762
2763	!
2764	!-- Input variables of argument list:
2765	REAL(wp), INTENT ( IN ) :: pmva !< Actual Predicted Mean Vote (PMV) according to Fanger
2766	REAL(wp), INTENT ( IN ) :: svp_ta !< Saturation water vapour pressure (hPa) at ta
2767	REAL(wp), INTENT ( IN ) :: ta !< Ambient temperature (degC) at screen level
2768	REAL(wp), INTENT ( IN ) :: tmrt !< Mean radiant temperature (degC) at screen level
2769	REAL(wp), INTENT ( IN ) :: vp !< Water vapour pressure (hPa) at screen level
2770	REAL(wp), INTENT ( IN ) :: ws !< Wind speed (m/s) 1 m above ground
2771
2772	!
2773	!-- Output variables of argument list:
2774	INTEGER(iwp), INTENT ( OUT ) :: nerr !< Error status / quality flag
2775	!< 0 = o.k.
2776	!< -2 = pmva outside valid regression range
2777	!< -3 = rel. humidity set to 5 % or 95 %, respectively
2778	!< -4 = deltapmv set to avoid pmvs < 0
2779
2780	!
2781	!-- Internal variables:
2782	INTEGER(iwp) :: nreg !<
2783
2784	REAL(wp) :: apa !< natural logarithm of pa (with hard lower border)
2785	REAL(wp) :: dapa !< difference of apa and pa_p50
2786	REAL(wp) :: dpmv_1 !<
2787	REAL(wp) :: dpmv_2 !<
2788	REAL(wp) :: dtmrt !< difference mean radiation to air temperature
2789	REAL(wp) :: pa !< vapor pressure (hPa) with hard bounds
2790	REAL(wp) :: pa_p50 !< ratio actual water vapour pressure to that of relative humidity of
2791	!< 50 %
2792	REAL(wp) :: pmv !< temp storage og predicted mean vote
2793	REAL(wp) :: pmvs !<
2794	REAL(wp) :: p10 !< lower bound for pa
2795	REAL(wp) :: p95 !< upper bound for pa
2796	REAL(wp) :: sqvel !< square root of local wind velocity
2797	REAL(wp) :: weight !<
2798	REAL(wp) :: weight2 !<
2799
2800	!
2801	!-- Regression coefficients:
2802	REAL(wp), DIMENSION(0:7), PARAMETER :: bpmv = (/ &
2803	- 0.0556602_wp, - 0.1528680_wp, - 0.2336104_wp, - 0.2789387_wp, &
2804	- 0.3551048_wp, - 0.4304076_wp, - 0.4884961_wp, - 0.4897495_wp /)
2805
2806	REAL(wp), DIMENSION(0:7), PARAMETER :: bpa_p50 = (/ &
2807	- 0.1607154_wp, - 0.4177296_wp, - 0.4120541_wp, - 0.0886564_wp, &
2808	0.4285938_wp, 0.6281256_wp, 0.5067361_wp, 0.3965169_wp /)
2809
2810	REAL(wp), DIMENSION(0:7), PARAMETER :: bpa = (/ &
2811	0.0580284_wp, 0.0836264_wp, 0.1009919_wp, 0.1020777_wp, &
2812	0.0898681_wp, 0.0839116_wp, 0.0853258_wp, 0.0866589_wp /)
2813
2814	REAL(wp), DIMENSION(0:7), PARAMETER :: bapa = (/ &
2815	- 1.7838788_wp, - 2.9306231_wp, - 1.6350334_wp, 0.6211547_wp, &
2816	3.3918083_wp, 5.5521025_wp, 8.4897418_wp, 16.6265851_wp /)
2817
2818	REAL(wp), DIMENSION(0:7), PARAMETER :: bdapa = (/ &
2819	1.6752720_wp, 2.7379504_wp, 1.2940526_wp, - 1.0985759_wp, &
2820	- 3.9054732_wp, - 6.0403012_wp, - 8.9437119_wp, - 17.0671201_wp /)
2821
2822	REAL(wp), DIMENSION(0:7), PARAMETER :: bsqvel = (/ &
2823	- 0.0315598_wp, - 0.0286272_wp, - 0.0009228_wp, 0.0483344_wp, &
2824	0.0992366_wp, 0.1491379_wp, 0.1951452_wp, 0.2133949_wp /)
2825
2826	REAL(wp), DIMENSION(0:7), PARAMETER :: bta = (/ &
2827	0.0953986_wp, 0.1524760_wp, 0.0564241_wp, - 0.0893253_wp, &
2828	- 0.2398868_wp, - 0.3515237_wp, - 0.5095144_wp, - 0.9469258_wp /)
2829
2830	REAL(wp), DIMENSION(0:7), PARAMETER :: bdtmrt = (/ &
2831	- 0.0004672_wp, - 0.0000514_wp, - 0.0018037_wp, - 0.0049440_wp, &
2832	- 0.0069036_wp, - 0.0075844_wp, - 0.0079602_wp, - 0.0089439_wp /)
2833
2834	REAL(wp), DIMENSION(0:7), PARAMETER :: aconst = (/ &
2835	1.8686215_wp, 3.4260713_wp, 2.0116185_wp, - 0.7777552_wp, &
2836	- 4.6715853_wp, - 7.7314281_wp, - 11.7602578_wp, - 23.5934198_wp /)
2837
2838
2839	!
2840	!-- Test for compliance with regression range
2841	IF ( pmva < -1.0_wp .OR. pmva > 7.0_wp ) THEN
2842	nerr = -2_iwp
2843	ELSE
2844	nerr = 0_iwp
2845	ENDIF
2846	!
2847	!-- Initialise classic PMV
2848	pmv = pmva
2849	!
2850	!-- Water vapour pressure of air
2851	p10 = 0.05_wp * svp_ta
2852	p95 = 1.00_wp * svp_ta
2853	IF ( vp >= p10 .AND. vp <= p95 ) THEN
2854	pa = vp
2855	ELSE
2856	nerr = -3_iwp
2857	IF ( vp < p10 ) THEN
2858	!
2859	!-- Due to conditions of regression: r.H. >= 5 %
2860	pa = p10
2861	ELSE
2862	!
2863	!-- Due to conditions of regression: r.H. <= 95 %
2864	pa = p95
2865	ENDIF
2866	ENDIF
2867	IF ( pa > 0.0_wp ) THEN
2868	!
2869	!-- Natural logarithm of pa
2870	apa = LOG( pa )
2871	ELSE
2872	apa = -5.0_wp
2873	ENDIF
2874	!
2875	!-- Ratio actual water vapour pressure to that of a r.H. of 50 %
2876	pa_p50 = 0.5_wp * svp_ta
2877	IF ( pa_p50 > 0.0_wp .AND. pa > 0.0_wp ) THEN
2878	dapa = apa - LOG( pa_p50 )
2879	pa_p50 = pa / pa_p50
2880	ELSE
2881	dapa = -5.0_wp
2882	pa_p50 = 0.0_wp
2883	ENDIF
2884	!
2885	!-- Square root of wind velocity
2886	IF ( ws >= 0.0_wp ) THEN
2887	sqvel = SQRT( ws )
2888	ELSE
2889	sqvel = 0.0_wp
2890	ENDIF
2891	!
2892	!-- Difference mean radiation to air temperature
2893	dtmrt = tmrt - ta
2894	!
2895	!-- Select the valid regression coefficients
2896	nreg = INT( pmv )
2897	IF ( nreg < 0_iwp ) THEN
2898	!
2899	!-- Value of the FUNCTION in the case pmv <= -1
2900	deltapmv = 0.0_wp
2901	RETURN
2902	ENDIF
2903	weight = MOD ( pmv, 1.0_wp )
2904	IF ( weight < 0.0_wp ) weight = 0.0_wp
2905	IF ( nreg > 5_iwp ) THEN
2906	nreg = 5_iwp
2907	weight = pmv - 5.0_wp
2908	weight2 = pmv - 6.0_wp
2909	IF ( weight2 > 0_iwp ) THEN
2910	weight = ( weight - weight2 ) / weight
2911	ENDIF
2912	ENDIF
2913	!
2914	!-- Regression valid for 0. <= pmv <= 6., bounds are checked above
2915	dpmv_1 = &
2916	+ bpa(nreg) * pa &
2917	+ bpmv(nreg) * pmv &
2918	+ bapa(nreg) * apa &
2919	+ bta(nreg) * ta &
2920	+ bdtmrt(nreg) * dtmrt &
2921	+ bdapa(nreg) * dapa &
2922	+ bsqvel(nreg) * sqvel &
2923	+ bpa_p50(nreg) * pa_p50 &
2924	+ aconst(nreg)
2925
2926	! dpmv_2 = 0.0_wp
2927	! IF ( nreg < 6_iwp ) THEN !< nreg is always <= 5, see above
2928	dpmv_2 = &
2929	+ bpa(nreg+1_iwp) * pa &
2930	+ bpmv(nreg+1_iwp) * pmv &
2931	+ bapa(nreg+1_iwp) * apa &
2932	+ bta(nreg+1_iwp) * ta &
2933	+ bdtmrt(nreg+1_iwp) * dtmrt &
2934	+ bdapa(nreg+1_iwp) * dapa &
2935	+ bsqvel(nreg+1_iwp) * sqvel &
2936	+ bpa_p50(nreg+1_iwp) * pa_p50 &
2937	+ aconst(nreg+1_iwp)
2938	! ENDIF
2939	!
2940	!-- Calculate pmv modification
2941	deltapmv = ( 1.0_wp - weight ) * dpmv_1 + weight * dpmv_2
2942	pmvs = pmva + deltapmv
2943	IF ( ( pmvs ) < 0.0_wp ) THEN
2944	!
2945	!-- Prevent negative pmv* due to problems with clothing insulation
2946	nerr = -4_iwp
2947	IF ( pmvs > -0.11_wp ) THEN
2948	!
2949	!-- Threshold from perct_regression for winter clothing insulation
2950	deltapmv = deltapmv + 0.11_wp
2951	ELSE
2952	!
2953	!-- Set pmvs to "0" for compliance with summer clothing insulation
2954	deltapmv = -1.0_wp * pmva
2955	ENDIF
2956	ENDIF
2957
2958	END FUNCTION deltapmv
2959
2960	!--------------------------------------------------------------------------------------------------!
2961	! Description:
2962	! ------------
2963	!> The subroutine "calc_sultr" returns a threshold value to perceived temperature allowing to decide
2964	!> whether the actual perceived temperature is linked to perecption of sultriness. The threshold
2965	!> values depends on the Fanger's classical PMV, expressed here as perceived temperature perct.
2966	!--------------------------------------------------------------------------------------------------!
2967	SUBROUTINE calc_sultr( perct_ij, dperctm, dperctstd, sultr_res )
2968
2969	IMPLICIT NONE
2970	!
2971	!-- Input of the argument list:
2972	REAL(wp), INTENT ( IN ) :: perct_ij !< Classical perceived temperature: Base is Fanger's PMV
2973	!
2974	!-- Additional output variables of argument list:
2975	REAL(wp), INTENT ( OUT ) :: dperctm !< Mean deviation perct (classical gt) to gt* (rational
2976	!< gt calculated based on Gagge's rational PMV*)
2977	REAL(wp), INTENT ( OUT ) :: dperctstd !< dperctm plus its standard deviation times a factor
2978	!< determining the significance to perceive sultriness
2979	REAL(wp), INTENT ( OUT ) :: sultr_res
2980	!
2981	!-- Types of coefficients mean deviation: third order polynomial
2982	REAL(wp), PARAMETER :: dperctka = 7.5776086_wp
2983	REAL(wp), PARAMETER :: dperctkb = - 0.740603_wp
2984	REAL(wp), PARAMETER :: dperctkc = 0.0213324_wp
2985	REAL(wp), PARAMETER :: dperctkd = - 0.00027797237_wp
2986	!
2987	!-- Types of coefficients mean deviation plus standard deviation
2988	!-- regression coefficients: third order polynomial
2989	REAL(wp), PARAMETER :: dperctsa = 0.0268918_wp
2990	REAL(wp), PARAMETER :: dperctsb = 0.0465957_wp
2991	REAL(wp), PARAMETER :: dperctsc = - 0.00054709752_wp
2992	REAL(wp), PARAMETER :: dperctsd = 0.0000063714823_wp
2993	!
2994	!-- Factor to mean standard deviation defining SIGNificance for
2995	!-- sultriness
2996	REAL(wp), PARAMETER :: faktor = 1.0_wp
2997	!
2998	!-- Initialise
2999	sultr_res = 99.0_wp
3000	dperctm = 0.0_wp
3001	dperctstd = 999999.0_wp
3002
3003	IF ( perct_ij < 16.826_wp .OR. perct_ij > 56.0_wp ) THEN
3004	!
3005	!-- Unallowed value of classical perct!
3006	RETURN
3007	ENDIF
3008	!
3009	!-- Mean deviation dependent on perct
3010	dperctm = dperctka + dperctkb * perct_ij + dperctkc * perct_ij*2.0_wp + dperctkd &
3011	perct_ij**3.0_wp
3012	!
3013	!-- Mean deviation plus its standard deviation
3014	dperctstd = dperctsa + dperctsb * perct_ij + dperctsc * perct_ij*2.0_wp + dperctsd &
3015	perct_ij**3.0_wp
3016	!
3017	!-- Value of the FUNCTION
3018	sultr_res = dperctm + faktor * dperctstd
3019	IF ( ABS( sultr_res ) > 99.0_wp ) sultr_res = +99.0_wp
3020
3021	END SUBROUTINE calc_sultr
3022
3023	!--------------------------------------------------------------------------------------------------!
3024	! Description:
3025	! ------------
3026	!> Multiple linear regression to calculate an increment delta_cold, to adjust Fanger's classical PMV
3027	!> (pmva) by Gagge's 2 node model, applying Fanger's convective heat transfer coefficient, hcf.
3028	!> Wind velocitiy of the reference environment is 0.10 m/s
3029	!--------------------------------------------------------------------------------------------------!
3030	SUBROUTINE dpmv_cold( pmva, ta, ws, tmrt, nerr, dpmv_cold_res )
3031
3032	IMPLICIT NONE
3033	!
3034	!-- Type of input arguments
3035	REAL(wp), INTENT ( IN ) :: pmva !< Fanger's classical predicted mean vote
3036	REAL(wp), INTENT ( IN ) :: ta !< Air temperature 2 m above ground (degC)
3037	REAL(wp), INTENT ( IN ) :: tmrt !< Mean radiant temperature (degC)
3038	REAL(wp), INTENT ( IN ) :: ws !< Relative wind velocity 1 m above ground (m/s)
3039	!
3040	!-- Type of output argument
3041	INTEGER(iwp), INTENT ( OUT ) :: nerr !< Error indicator: 0 = o.k., +1 = denominator for
3042	!< intersection = 0
3043
3044	REAL(wp), INTENT ( OUT ) :: dpmv_cold_res !< Increment to adjust pmva according to the
3045	!< results of Gagge's 2 node model depending on the input
3046	!
3047	!-- Type of program variables
3048	INTEGER(iwp) :: i !< running index
3049	INTEGER(iwp) :: i_bin !< result row number
3050
3051	REAL(wp) :: delta_cold(3)
3052	REAL(wp) :: dtmrt !< delta mean radiant temperature
3053	REAL(wp) :: pmv_cross(2)
3054	REAL(wp) :: reg_a(3)
3055	REAL(wp) :: r_denominator !< the regression equations denominator
3056	REAL(wp) :: sqrt_ws !< sqare root of wind speed
3057
3058	! REAL(wp) :: coeff(3,5) !< unsafe! array is (re-)writable!
3059	! coeff(1,1:5) = &
3060	! (/ +0.161_wp, +0.130_wp, -1.125E-03_wp, +1.106E-03_wp, -4.570E-04_wp /)
3061	! coeff(2,1:5) = &
3062	! (/ 0.795_wp, 0.713_wp, -8.880E-03_wp, -1.803E-03_wp, -2.816E-03_wp /)
3063	! coeff(3,1:5) = &
3064	! (/ +0.05761_wp, +0.458_wp, -1.829E-02_wp, -5.577E-03_wp, -1.970E-03_wp /)
3065
3066	!
3067	!-- Coefficient of the 3 regression lines:
3068	! 1:const 2:pmva 3:ta 4:sqrt_ws 5:dtmrt
3069	REAL(wp), DIMENSION(1:3,1:5), PARAMETER :: coeff = RESHAPE( (/ &
3070	0.161_wp, 0.130_wp, -1.125E-03_wp, 1.106E-03_wp, -4.570E-04_wp, &
3071	0.795_wp, 0.713_wp, -8.880E-03_wp, -1.803E-03_wp, -2.816E-03_wp, &
3072	0.05761_wp, 0.458_wp, -1.829E-02_wp, -5.577E-03_wp, -1.970E-03_wp &
3073	/), SHAPE( coeff ), order=(/ 2, 1 /) )
3074	!
3075	!-- Initialise
3076	nerr = 0_iwp
3077	dpmv_cold_res = 0.0_wp
3078	dtmrt = tmrt - ta
3079	sqrt_ws = ws
3080	IF ( sqrt_ws < 0.1_wp ) THEN
3081	sqrt_ws = 0.1_wp
3082	ELSE
3083	sqrt_ws = SQRT( sqrt_ws )
3084	ENDIF
3085
3086	delta_cold = 0.0_wp
3087	pmv_cross = pmva
3088
3089	!
3090	!-- Determine regression constant for given meteorological conditions
3091	DO i = 1, 3
3092	reg_a(i) = coeff(i,1) + coeff(i,3) * ta + coeff(i,4) * sqrt_ws + coeff(i,5)*dtmrt
3093	delta_cold(i) = reg_a(i) + coeff(i,2) * pmva
3094	ENDDO
3095	!
3096	!-- Intersection points of regression lines in terms of Fanger's PMV
3097	DO i = 1, 2
3098	r_denominator = coeff(i,2) - coeff(i+1,2)
3099	IF ( ABS( r_denominator ) > 0.00001_wp ) THEN
3100	pmv_cross(i) = ( reg_a(i+1) - reg_a(i) ) / r_denominator
3101	ELSE
3102	nerr = 1_iwp
3103	RETURN
3104	ENDIF
3105	ENDDO
3106	!
3107	!-- Select result row number
3108	i_bin = 3
3109	DO i = 1, 2
3110	IF ( pmva > pmv_cross(i) ) THEN
3111	i_bin = i
3112	EXIT
3113	ENDIF
3114	ENDDO
3115	!
3116	!-- Adjust to operative temperature scaled according to classical PMV (Fanger)
3117	dpmv_cold_res = delta_cold(i_bin) - dpmv_cold_adj(pmva)
3118
3119	END SUBROUTINE dpmv_cold
3120
3121	!--------------------------------------------------------------------------------------------------!
3122	! Description:
3123	! ------------
3124	!> Calculates the summand dpmv_cold_adj adjusting to the operative temperature scaled according to
3125	!> classical PMV (Fanger) for cold conditions. Valid for reference environment: v (1m) = 0.10 m/s,
3126	!> dTMRT = 0 K, r.h. = 50 %
3127	!--------------------------------------------------------------------------------------------------!
3128	REAL(wp) FUNCTION dpmv_cold_adj( pmva )
3129
3130	IMPLICIT NONE
3131
3132	INTEGER(iwp) :: i !< running index
3133	INTEGER(iwp) :: thr !< thermal range
3134
3135	REAL(wp), INTENT ( IN ) :: pmva !< (adjusted) Predicted Mean Vote
3136
3137	REAL(wp) :: pmv !< pmv-part of the regression
3138
3139	!
3140	!-- Provide regression coefficients for three thermal ranges:
3141	!-- slightly cold cold very cold
3142	REAL(wp), DIMENSION(1:3,0:3), PARAMETER :: coef = RESHAPE( (/ &
3143	0.0941540_wp, -0.1506620_wp, -0.0871439_wp, &
3144	0.0783162_wp, -1.0612651_wp, 0.1695040_wp, &
3145	0.1350144_wp, -1.0049144_wp, -0.0167627_wp, &
3146	0.1104037_wp, -0.2005277_wp, -0.0003230_wp &
3147	/), SHAPE(coef), order=(/ 1, 2 /) )
3148	!
3149	!-- Select thermal range
3150	IF ( pmva <= -2.1226_wp ) THEN !< very cold
3151	thr = 3_iwp
3152	ELSE IF ( pmva <= -1.28_wp ) THEN !< cold
3153	thr = 2_iwp
3154	ELSE !< slightly cold
3155	thr = 1_iwp
3156	ENDIF
3157	!
3158	!-- Initialize
3159	dpmv_cold_adj = coef(thr,0)
3160	pmv = 1.0_wp
3161	!
3162	!-- Calculate pmv adjustment (dpmv_cold_adj)
3163	DO i = 1, 3
3164	pmv = pmv * pmva
3165	dpmv_cold_adj = dpmv_cold_adj + coef(thr,i) * pmv
3166	ENDDO
3167
3168	RETURN
3169	END FUNCTION dpmv_cold_adj
3170
3171	!--------------------------------------------------------------------------------------------------!
3172	! Description:
3173	! ------------
3174	!> Based on perceived temperature (perct) as input, ireq_neutral determines the required clothing
3175	!> insulation (clo) for thermally neutral conditions (neither body cooling nor body heating). It is
3176	!> related to the Klima-Michel activity level (134.682 W/m2). IREQ_neutral is only defined for perct
3177	!> < 10 (degC)
3178	!--------------------------------------------------------------------------------------------------!
3179	REAL(wp) FUNCTION ireq_neutral( perct_ij, ireq_minimal, nerr )
3180
3181	IMPLICIT NONE
3182	!
3183	!-- Type declaration of arguments
3184	INTEGER(iwp), INTENT ( OUT ) :: nerr
3185
3186	REAL(wp), INTENT ( IN ) :: perct_ij
3187	REAL(wp), INTENT ( OUT ) :: ireq_minimal
3188	!
3189	!-- Type declaration for internal varables
3190	REAL(wp) :: perct02
3191	!
3192	!-- Initialise
3193	nerr = 0_iwp
3194	!
3195	!-- Convert perceived temperature from basis 0.1 m/s to basis 0.2 m/s
3196	perct02 = 1.8788_wp + 0.9296_wp * perct_ij
3197	!
3198	!-- IREQ neutral conditions (thermal comfort)
3199	ireq_neutral = 1.62_wp - 0.0564_wp * perct02
3200	!
3201	!-- Regression only defined for perct <= 10 (degC)
3202	IF ( ireq_neutral < 0.5_wp ) THEN
3203	IF ( ireq_neutral < 0.48_wp ) THEN
3204	nerr = 1_iwp
3205	ENDIF
3206	ireq_neutral = 0.5_wp
3207	ENDIF
3208	!
3209	!-- Minimal required clothing insulation: maximal acceptable body cooling
3210	ireq_minimal = 1.26_wp - 0.0588_wp * perct02
3211	IF ( nerr > 0_iwp ) THEN
3212	ireq_minimal = ireq_neutral
3213	ENDIF
3214
3215	RETURN
3216	END FUNCTION ireq_neutral
3217
3218
3219	!--------------------------------------------------------------------------------------------------!
3220	! Description:
3221	! ------------
3222	!> The SUBROUTINE surface area calculates the surface area of the individual according to its height
3223	!> (m), weight (kg), and age (y)
3224	!--------------------------------------------------------------------------------------------------!
3225	SUBROUTINE surface_area( height_cm, weight, age, surf )
3226
3227	IMPLICIT NONE
3228
3229	INTEGER(iwp), INTENT(in) :: age
3230
3231	REAL(wp) , INTENT(in) :: height_cm
3232	REAL(wp) , INTENT(in) :: weight
3233
3234	REAL(wp) , INTENT(out) :: surf
3235
3236	REAL(wp) :: height
3237
3238	height = height_cm * 100.0_wp
3239	!
3240	!-- According to Gehan-George, for children
3241	IF ( age < 19_iwp ) THEN
3242	IF ( age < 5_iwp ) THEN
3243	surf = 0.02667_wp * height*0.42246_wp weight**0.51456_wp
3244	RETURN
3245	ENDIF
3246	surf = 0.03050_wp * height*0.35129_wp weight**0.54375_wp
3247	RETURN
3248	ENDIF
3249	!
3250	!-- DuBois D, DuBois EF: A formula to estimate the approximate surface area if height and weight be
3251	!> known. In: Arch. Int. Med.. 17, 1916, pp. 863:871.
3252	surf = 0.007184_wp * height*0.725_wp weight**0.425_wp
3253	RETURN
3254
3255	END SUBROUTINE surface_area
3256
3257	!--------------------------------------------------------------------------------------------------!
3258	! Description:
3259	! ------------
3260	!> The SUBROUTINE persdat calculates
3261	!> - the total internal energy production = metabolic + workload,
3262	!> - the total internal energy production for a standardized surface (actlev)
3263	!> - the DuBois - area (a_surf [m2])
3264	!> from
3265	!> - the persons age (years),
3266	!> - weight (kg),
3267	!> - height (m),
3268	!> - sex (1 = male, 2 = female),
3269	!> - work load (W)
3270	!> for a sample human.
3271	!--------------------------------------------------------------------------------------------------!
3272	SUBROUTINE persdat( age, weight, height, sex, work, a_surf, actlev )
3273
3274	IMPLICIT NONE
3275
3276	INTEGER(iwp), INTENT(in) :: sex
3277
3278
3279	REAL(wp), INTENT(in) :: age
3280	REAL(wp), INTENT(in) :: height
3281	REAL(wp), INTENT(in) :: weight
3282	REAL(wp), INTENT(in) :: work
3283
3284	REAL(wp), INTENT(out) :: actlev
3285
3286	REAL(wp) :: a_surf
3287	REAL(wp) :: basic_heat_prod
3288	REAL(wp) :: energy_prod
3289	REAL(wp) :: factor
3290	REAL(wp) :: s
3291
3292
3293	CALL surface_area( height, weight, INT( age ), a_surf )
3294	s = height * 100.0_wp / ( weight**( 1.0_wp / 3.0_wp ) )
3295	factor = 1.0_wp + .004_wp * ( 30.0_wp - age )
3296	basic_heat_prod = 0.0_wp
3297	IF ( sex == 1_iwp ) THEN
3298	basic_heat_prod = 3.45_wp * weight*( 3.0_wp / 4.0_wp ) ( factor + 0.01_wp &
3299	* ( s - 43.4_wp ) )
3300	ELSE IF ( sex == 2_iwp ) THEN
3301	basic_heat_prod = 3.19_wp * weight*( 3.0_wp / 4.0_wp ) ( factor + 0.018_wp &
3302	* ( s - 42.1_wp ) )
3303	ENDIF
3304
3305	energy_prod = work + basic_heat_prod
3306	actlev = energy_prod / a_surf
3307
3308	END SUBROUTINE persdat
3309
3310
3311	!--------------------------------------------------------------------------------------------------!
3312	! Description:
3313	! ------------
3314	!> SUBROUTINE ipt_init
3315	!> initializes the instationary perceived temperature
3316	!--------------------------------------------------------------------------------------------------!
3317
3318	SUBROUTINE ipt_init( age, weight, height, sex, work, actlev, clo, ta, vp, ws, tmrt, pair, dt, &
3319	storage, t_clothing, ipt )
3320
3321	IMPLICIT NONE
3322	!
3323	!-- Input parameters
3324
3325	INTEGER(iwp), INTENT(in) :: sex !< Persons sex (1 = male, 2 = female)
3326
3327	REAL(wp), INTENT(in) :: age !< Persons age (years)
3328	REAL(wp), INTENT(in) :: dt !< Timestep (s)
3329	REAL(wp), INTENT(in) :: height !< Persons height (m)7
3330	REAL(wp), INTENT(in) :: pair !< Air pressure (hPa)
3331	REAL(wp), INTENT(in) :: ta !< Air Temperature (degree_C)
3332	REAL(wp), INTENT(in) :: tmrt !< Mean radiant temperature (degree_C)
3333	REAL(wp), INTENT(in) :: vp !< Vapor pressure (hPa)
3334	REAL(wp), INTENT(in) :: weight !< Persons weight (kg)
3335	REAL(wp), INTENT(in) :: work !< Current workload (W)
3336	REAL(wp), INTENT(in) :: ws !< Wind speed in approx. 1.1m (m/s)
3337	!
3338	!-- Output parameters
3339	REAL(wp), INTENT(out) :: actlev
3340	REAL(wp), INTENT(out) :: clo
3341	REAL(wp), INTENT(out) :: ipt
3342	REAL(wp), INTENT(out) :: storage
3343	REAL(wp), INTENT(out) :: t_clothing
3344	!
3345	!-- Internal variables
3346	INTEGER(iwp) :: ncount
3347	INTEGER(iwp) :: nerr_cold
3348	INTEGER(iwp) :: nerr
3349
3350	LOGICAL :: sultrieness
3351
3352	REAL(wp), PARAMETER :: eps = 0.0005_wp
3353	REAL(wp), PARAMETER :: eta = 0.0_wp
3354
3355	! REAL(wp) :: acti
3356	REAL(wp) :: a_surf
3357	! REAL(wp) :: clo_fanger
3358	REAL(wp) :: clon
3359	REAL(wp) :: d_pmv
3360	REAL(wp) :: d_std
3361	REAL(wp) :: dgtcm
3362	REAL(wp) :: dgtcstd
3363	REAL(wp) :: ireq_minimal
3364	REAL(wp) :: pmv_s
3365	REAL(wp) :: pmv_w
3366	REAL(wp) :: pmva
3367	REAL(wp) :: pmvs
3368	REAL(wp) :: ptc
3369	REAL(wp) :: sclo
3370	REAL(wp) :: sult_lim
3371	REAL(wp) :: svp_ta
3372	REAL(wp) :: wclo
3373
3374
3375	storage = 0.0_wp
3376	CALL persdat( age, weight, height, sex, work, a_surf, actlev )
3377	!
3378	!-- Initialise
3379	t_clothing = bio_fill_value
3380	ipt = bio_fill_value
3381	nerr = 0_wp
3382	ncount = 0_wp
3383	sultrieness = .FALSE.
3384	!
3385	!-- Tresholds: clothing insulation (account for model inaccuracies)
3386	!-- Summer clothing
3387	sclo = 0.44453_wp
3388	!-- Winter clothing
3389	wclo = 1.76267_wp
3390	!
3391	!-- Decision: firstly calculate for winter or summer clothing
3392	IF ( ta <= 10.0_wp ) THEN
3393	!
3394	!-- First guess: winter clothing insulation: cold stress
3395	clo = wclo
3396	t_clothing = bio_fill_value ! force initial run
3397	CALL fanger_s_acti ( ta, tmrt, vp, ws, pair, clo, actlev, work, t_clothing, storage, dt, &
3398	pmva )
3399	pmv_w = pmva
3400
3401	IF ( pmva > 0.0_wp ) THEN
3402	!
3403	!-- Case summer clothing insulation: heat load ?
3404	clo = sclo
3405	t_clothing = bio_fill_value ! force initial run
3406	CALL fanger_s_acti ( ta, tmrt, vp, ws, pair, clo, actlev, work, t_clothing, storage, dt, &
3407	pmva )
3408	pmv_s = pmva
3409	IF ( pmva <= 0.0_wp ) THEN
3410	!
3411	!-- Case: comfort achievable by varying clothing insulation between winter and summer set
3412	!-- values
3413	CALL iso_ridder ( ta, tmrt, vp, ws, pair, actlev, eta , sclo, pmv_s, wclo, pmv_w, eps,&
3414	pmva, ncount, clo )
3415	IF ( ncount < 0_iwp ) THEN
3416	nerr = -1_iwp
3417	RETURN
3418	ENDIF
3419	ELSE IF ( pmva > 0.06_wp ) THEN
3420	clo = 0.5_wp
3421	t_clothing = bio_fill_value
3422	CALL fanger_s_acti ( ta, tmrt, vp, ws, pair, clo, actlev, work, t_clothing, storage, &
3423	dt, pmva )
3424	ENDIF
3425	ELSE IF ( pmva < - 0.11_wp ) THEN
3426	clo = 1.75_wp
3427	t_clothing = bio_fill_value
3428	CALL fanger_s_acti ( ta, tmrt, vp, ws, pair, clo, actlev, work, t_clothing, storage, dt, &
3429	pmva )
3430	ENDIF
3431
3432	ELSE
3433	!
3434	!-- First guess: summer clothing insulation: heat load
3435	clo = sclo
3436	t_clothing = bio_fill_value
3437	CALL fanger_s_acti ( ta, tmrt, vp, ws, pair, clo, actlev, work, t_clothing, storage, dt, &
3438	pmva )
3439	pmv_s = pmva
3440
3441	IF ( pmva < 0.0_wp ) THEN
3442	!
3443	!-- Case winter clothing insulation: cold stress ?
3444	clo = wclo
3445	t_clothing = bio_fill_value
3446	CALL fanger_s_acti ( ta, tmrt, vp, ws, pair, clo, actlev, work, t_clothing, storage, dt, &
3447	pmva )
3448	pmv_w = pmva
3449
3450	IF ( pmva >= 0.0_wp ) THEN
3451	!
3452	!-- Case: comfort achievable by varying clothing insulation between winter and summer set
3453	!-- values
3454	CALL iso_ridder ( ta, tmrt, vp, ws, pair, actlev, eta, sclo, pmv_s, wclo, pmv_w, eps, &
3455	pmva, ncount, clo )
3456	IF ( ncount < 0_wp ) THEN
3457	nerr = -1_iwp
3458	RETURN
3459	ENDIF
3460	ELSE IF ( pmva < - 0.11_wp ) THEN
3461	clo = 1.75_wp
3462	t_clothing = bio_fill_value
3463	CALL fanger_s_acti ( ta, tmrt, vp, ws, pair, clo, actlev, work, t_clothing, storage, &
3464	dt, pmva )
3465	ENDIF
3466	ELSE IF ( pmva > 0.06_wp ) THEN
3467	clo = 0.5_wp
3468	t_clothing = bio_fill_value
3469	CALL fanger_s_acti ( ta, tmrt, vp, ws, pair, clo, actlev, work, t_clothing, storage, dt, &
3470	pmva )
3471	ENDIF
3472
3473	ENDIF
3474	!
3475	!-- Determine perceived temperature by regression equation + adjustments
3476	pmvs = pmva
3477	CALL perct_regression( pmva, clo, ipt )
3478	ptc = ipt
3479	IF ( clo >= 1.75_wp .AND. pmva <= - 0.11_wp ) THEN
3480	!
3481	!-- Adjust for cold conditions according to Gagge 1986
3482	CALL dpmv_cold ( pmva, ta, ws, tmrt, nerr_cold, d_pmv )
3483	IF ( nerr_cold > 0_iwp ) nerr = -5_iwp
3484	pmvs = pmva - d_pmv
3485	IF ( pmvs > - 0.11_wp ) THEN
3486	d_pmv = 0.0_wp
3487	pmvs = - 0.11_wp
3488	ENDIF
3489	CALL perct_regression( pmvs, clo, ipt )
3490	ENDIF
3491	! clo_fanger = clo
3492	clon = clo
3493	IF ( clo > 0.5_wp .AND. ipt <= 8.73_wp ) THEN
3494	!
3495	!-- Required clothing insulation (ireq) is exclusively defined for perceived temperatures (ipt)
3496	!-- less 10 (C) for a reference wind of 0.2 m/s according to 8.73 (C) for 0.1 m/s
3497	clon = ireq_neutral ( ipt, ireq_minimal, nerr )
3498	clo = clon
3499	ENDIF
3500	CALL calc_sultr( ptc, dgtcm, dgtcstd, sult_lim )
3501	sultrieness = .FALSE.
3502	d_std = - 99.0_wp
3503	IF ( pmva > 0.06_wp .AND. clo <= 0.5_wp ) THEN
3504	!
3505	!-- Adjust for warm/humid conditions according to Gagge 1986
3506	CALL saturation_vapor_pressure ( ta, svp_ta )
3507	d_pmv = deltapmv ( pmva, ta, vp, svp_ta, tmrt, ws, nerr )
3508	pmvs = pmva + d_pmv
3509	CALL perct_regression( pmvs, clo, ipt )
3510	IF ( sult_lim < 99.0_wp ) THEN
3511	IF ( (ipt - ptc) > sult_lim ) sultrieness = .TRUE.
3512	ENDIF
3513	ENDIF
3514
3515
3516	END SUBROUTINE ipt_init
3517
3518	!--------------------------------------------------------------------------------------------------!
3519	! Description:
3520	! ------------
3521	!> SUBROUTINE ipt_cycle
3522	!> Calculates one timestep for the instationary version of perceived temperature (iPT, degree_C) for
3523	!> - standard measured/predicted meteorological values and TMRT as input;
3524	!> - regressions for determination of PT;
3525	!> - adjustment to Gagge's PMV* (2-node-model, 1986) as base of PT under warm/humid conditions
3526	!> (Icl= 0.50 clo) and under cold conditions (Icl= 1.75 clo)
3527	!--------------------------------------------------------------------------------------------------!
3528	SUBROUTINE ipt_cycle( ta, vp, ws, tmrt, pair, dt, storage, t_clothing, clo, actlev, work, ipt )
3529
3530	IMPLICIT NONE
3531	!
3532	!-- Type of input of the argument list
3533	REAL(wp), INTENT ( IN ) :: actlev !< Internal heat production (W)
3534	REAL(wp), INTENT ( IN ) :: clo !< Clothing index (no dim)
3535	REAL(wp), INTENT ( IN ) :: dt !< Timestep (s)
3536	REAL(wp), INTENT ( IN ) :: pair !< Air pressure (hPa)
3537	REAL(wp), INTENT ( IN ) :: ta !< Air temperature (degree_C)
3538	REAL(wp), INTENT ( IN ) :: tmrt !< Mean radiant temperature (degree_C)
3539	REAL(wp), INTENT ( IN ) :: vp !< Vapor pressure (hPa)
3540	REAL(wp), INTENT ( IN ) :: work !< Mechanical work load (W)
3541	REAL(wp), INTENT ( IN ) :: ws !< Wind speed (m/s)
3542	!
3543	!-- In and output parameters
3544	REAL(wp), INTENT (INOUT) :: storage !< Heat storage (W)
3545	REAL(wp), INTENT (INOUT) :: t_clothing !< Clothig temperature (degree_C)
3546	!
3547	!-- Type of output of the argument list
3548	REAL(wp), INTENT ( OUT ) :: ipt !< Instationary perceived temperature (degree_C)
3549	!
3550	!-- Type of internal variables
3551	INTEGER(iwp) :: nerr
3552	INTEGER(iwp) :: nerr_cold
3553
3554	LOGICAL :: sultrieness
3555
3556	REAL(wp) :: d_pmv
3557	REAL(wp) :: d_std
3558	REAL(wp) :: dgtcm
3559	REAL(wp) :: dgtcstd
3560	REAL(wp) :: pmva
3561	REAL(wp) :: pmvs
3562	REAL(wp) :: ptc
3563	REAL(wp) :: sult_lim
3564	REAL(wp) :: svp_ta
3565	!
3566	!-- Initialise
3567	ipt = bio_fill_value
3568
3569	nerr = 0_iwp
3570	sultrieness = .FALSE.
3571	!
3572	!-- Determine pmv_adjusted for current conditions
3573	CALL fanger_s_acti ( ta, tmrt, vp, ws, pair, clo, actlev, work, t_clothing, storage, dt, pmva )
3574	!
3575	!-- Determine perceived temperature by regression equation + adjustments
3576	CALL perct_regression( pmva, clo, ipt )
3577	!
3578	!-- Consider cold conditions
3579	IF ( clo >= 1.75_wp .AND. pmva <= -0.11_wp ) THEN
3580	!
3581	!-- Adjust for cold conditions according to Gagge 1986
3582	CALL dpmv_cold ( pmva, ta, ws, tmrt, nerr_cold, d_pmv )
3583	IF ( nerr_cold > 0_iwp ) nerr = -5_iwp
3584	pmvs = pmva - d_pmv
3585	IF ( pmvs > - 0.11_wp ) THEN
3586	d_pmv = 0.0_wp
3587	pmvs = - 0.11_wp
3588	ENDIF
3589	CALL perct_regression( pmvs, clo, ipt )
3590	ENDIF
3591	!
3592	!-- Consider sultriness if appropriate
3593	ptc = ipt
3594	CALL calc_sultr( ptc, dgtcm, dgtcstd, sult_lim )
3595	sultrieness = .FALSE.
3596	d_std = - 99.0_wp
3597	IF ( pmva > 0.06_wp .AND. clo <= 0.5_wp ) THEN
3598	!
3599	!-- Adjust for warm/humid conditions according to Gagge 1986
3600	CALL saturation_vapor_pressure ( ta, svp_ta )
3601	d_pmv = deltapmv ( pmva, ta, vp, svp_ta, tmrt, ws, nerr )
3602	pmvs = pmva + d_pmv
3603	CALL perct_regression( pmvs, clo, ipt )
3604	IF ( sult_lim < 99.0_wp ) THEN
3605	IF ( (ipt - ptc) > sult_lim ) sultrieness = .TRUE.
3606	ENDIF
3607	ENDIF
3608
3609	END SUBROUTINE ipt_cycle
3610
3611	!--------------------------------------------------------------------------------------------------!
3612	! Description:
3613	! ------------
3614	!> SUBROUTINE fanger_s calculates the actual Predicted Mean Vote (dimensionless) according to Fanger
3615	!> corresponding to meteorological (ta,tmrt,pa,ws,pair) and individual variables (clo, actlev, eta)
3616	!> considering a storage and clothing temperature for a given timestep.
3617	!--------------------------------------------------------------------------------------------------!
3618	SUBROUTINE fanger_s_acti( ta, tmrt, pa, in_ws, pair, in_clo, actlev, activity, t_cloth, s, dt, &
3619	pmva )
3620
3621	IMPLICIT NONE
3622	!
3623	!-- Input argument types
3624	REAL(wp), INTENT ( IN ) :: activity !< Work load (W/mÂ²)
3625	REAL(wp), INTENT ( IN ) :: actlev !< Metabolic + work energy (W/mÂ²)
3626	REAL(wp), INTENT ( IN ) :: dt !< Timestep (s)
3627	REAL(wp), INTENT ( IN ) :: in_clo !< Clothing index (clo) (no dim)
3628	REAL(wp), INTENT ( IN ) :: in_ws !< Wind speed (m/s)
3629	REAL(wp), INTENT ( IN ) :: pa !< Vapour pressure (hPa)
3630	REAL(wp), INTENT ( IN ) :: pair !< Air pressure (hPa)
3631	REAL(wp), INTENT ( IN ) :: ta !< Air temperature (degree_C)
3632	REAL(wp), INTENT ( IN ) :: tmrt !< Mean radiant temperature (degree_C)
3633	!
3634	!-- Output argument types
3635	REAL(wp), INTENT ( OUT ) :: pmva !< actual Predicted Mean Vote (no dim)
3636
3637	REAL(wp), INTENT (INOUT) :: s !< storage var. of energy balance (W/m2)
3638	REAL(wp), INTENT (INOUT) :: t_cloth !< clothing temperature (degree_C)
3639	!
3640	!-- Internal variables
3641	INTEGER(iwp) :: i !< running index
3642	INTEGER(iwp) :: niter !< Running index
3643
3644	REAL(wp), PARAMETER :: time_equil = 7200.0_wp
3645
3646	REAL(wp) :: adjustrate !< Max storage adjustment rate
3647	REAL(wp) :: adjustrate_cloth !< max clothing temp. adjustment rate
3648	REAL(wp) :: bc !< preliminary result storage
3649	REAL(wp) :: cc !< preliminary result storage
3650	REAL(wp) :: clo !< clothing insulation index (clo)
3651	REAL(wp) :: d_s !< Storage delta (W)
3652	REAL(wp) :: dc !< preliminary result storage
3653	REAL(wp) :: en !< Energy ballance (W)
3654	REAL(wp) :: ec !< preliminary result storage
3655	REAL(wp) :: f_cl !< Increase in surface due to clothing (factor)
3656	REAL(wp) :: gc !< preliminary result storage
3657	REAL(wp) :: heat_convection !< energy loss by autocnvection (W)
3658	! REAL(wp) :: hr !< radiational heat resistence
3659	REAL(wp) :: t_clothing !< clothing temperature (degree_C)
3660	REAL(wp) :: t_skin_aver !< average skin temperature (degree_C)
3661	REAL(wp) :: ws !< wind speed (m/s)
3662	REAL(wp) :: z1 !< Empiric factor for the adaption of the heat
3663	!< ballance equation to the psycho-physical scale
3664	!< (Equ. 40 in FANGER)
3665	REAL(wp) :: z2 !< Water vapour diffution through the skin
3666	REAL(wp) :: z3 !< Sweat evaporation from the skin surface
3667	REAL(wp) :: z4 !< Loss of latent heat through respiration
3668	REAL(wp) :: z5 !< Loss of radiational heat
3669	REAL(wp) :: z6 !< Heat loss through forced convection
3670
3671
3672
3673
3674	!
3675	!-- Clo must be > 0. to avoid div. by 0!
3676	clo = in_clo
3677	IF ( clo < 001.0_wp ) clo = 0.001_wp
3678	!
3679	!-- Increase in surface due to clothing
3680	f_cl = 1.0_wp + 0.15_wp * clo
3681	!
3682	!-- Case of free convection (ws < 0.1 m/s ) not considered
3683	ws = in_ws
3684	IF ( ws < 0.1_wp ) THEN
3685	ws = 0.1_wp
3686	ENDIF
3687	!
3688	!-- Heat_convection = forced convection
3689	heat_convection = 12.1_wp * SQRT( ws * pair / 1013.25_wp )
3690	!
3691	!-- Average skin temperature
3692	t_skin_aver = 35.7_wp - 0.0275_wp * activity
3693	!
3694	!-- Calculation of constants for evaluation below
3695	bc = 0.155_wp * clo * 3.96_wp * 10.0_wp*( -8.0_wp ) f_cl
3696	cc = f_cl * heat_convection
3697	ec = 0.155_wp * clo
3698	dc = ( 1.0_wp + ec * cc ) / bc
3699	gc = ( t_skin_aver + bc * ( tmrt + 273.2_wp )*4.0_wp + ec cc * ta ) / bc
3700	!
3701	!-- Calculation of clothing surface temperature (t_clothing) based on Newton-approximation with air
3702	!-- temperature as initial guess
3703	niter = INT( dt * 10.0_wp, KIND=iwp )
3704	IF ( niter < 1 ) niter = 1_iwp
3705	adjustrate = 1.0_wp - EXP( -1.0_wp * ( 10.0_wp / time_equil ) * dt )
3706	IF ( adjustrate >= 1.0_wp ) adjustrate = 1.0_wp
3707	adjustrate_cloth = adjustrate * 30.0_wp
3708	t_clothing = t_cloth
3709	!
3710	!-- Set initial values for niter, adjustrates and t_clothing if this is the first call
3711	IF ( t_cloth <= -998.0_wp ) THEN ! If initial run
3712	niter = 3_iwp
3713	adjustrate = 1.0_wp
3714	adjustrate_cloth = 1.0_wp
3715	t_clothing = ta
3716	ENDIF
3717	!
3718	!-- Update clothing temperature
3719	DO i = 1, niter
3720	t_clothing = t_clothing - adjustrate_cloth * ( ( t_clothing + 273.2_wp )**4.0_wp + &
3721	t_clothing * dc - gc ) / ( 4.0_wp * ( t_clothing + 273.2_wp )**3.0_wp + dc )
3722	ENDDO
3723	!
3724	!-- Empiric factor for the adaption of the heat ballance equation to the psycho-physical scale
3725	!-- (Equ. 40 in FANGER)
3726	z1 = ( 0.303_wp * EXP( - 0.036_wp * actlev ) + 0.0275_wp )
3727	!
3728	!-- Water vapour diffution through the skin
3729	z2 = 0.31_wp * ( 57.3_wp - 0.07_wp * activity-pa )
3730	!
3731	!-- Sweat evaporation from the skin surface
3732	z3 = 0.42_wp * ( activity - 58.0_wp )
3733	!
3734	!-- Loss of latent heat through respiration
3735	z4 = 0.0017_wp * actlev * ( 58.7_wp - pa ) + 0.0014_wp * actlev * ( 34.0_wp - ta )
3736	!
3737	!-- Loss of radiational heat
3738	z5 = 3.96e-8_wp * f_cl * ( ( t_clothing + 273.2_wp )4 - ( tmrt + 273.2_wp )4 )
3739	!
3740	!-- Heat loss through forced convection
3741	z6 = cc * ( t_clothing - ta )
3742	!
3743	!-- Write together as energy ballance
3744	en = activity - z2 - z3 - z4 - z5 - z6
3745	!
3746	!-- Manage storage
3747	d_s = adjustrate * en + ( 1.0_wp - adjustrate ) * s
3748	!
3749	!-- Predicted Mean Vote
3750	pmva = z1 * d_s
3751	!
3752	!-- Update storage
3753	s = d_s
3754	t_cloth = t_clothing
3755
3756	END SUBROUTINE fanger_s_acti
3757
3758
3759
3760	!--------------------------------------------------------------------------------------------------!
3761	!
3762	! Description:
3763	! ------------
3764	!> Physiologically Equivalent Temperature (PET),
3765	!> stationary (calculated based on MEMI),
3766	!> Subroutine based on PETBER vers. 1.5.1996 by P. Hoeppe
3767	!--------------------------------------------------------------------------------------------------!
3768
3769	SUBROUTINE calculate_pet_static( ta, vpa, v, tmrt, pair, pet_ij )
3770
3771	IMPLICIT NONE
3772	!
3773	!-- Input arguments:
3774	REAL(wp), INTENT( IN ) :: pair !< Air pressure (hPa)
3775	REAL(wp), INTENT( IN ) :: ta !< Air temperature (degree_C)
3776	REAL(wp), INTENT( IN ) :: tmrt !< Mean radiant temperature (degree_C)
3777	REAL(wp), INTENT( IN ) :: v !< Wind speed (m/s)
3778	REAL(wp), INTENT( IN ) :: vpa !< Vapor pressure (hPa)
3779	!
3780	!-- Output arguments:
3781	REAL(wp), INTENT ( OUT ) :: pet_ij !< PET (degree_C)
3782	!
3783	!-- Internal variables:
3784	REAL(wp) :: acl !< clothing area (mÂ²)
3785	REAL(wp) :: adu !< Du Bois area (mÂ²)
3786	REAL(wp) :: aeff !< effective area (mÂ²)
3787	REAL(wp) :: ere !< energy ballance (W)
3788	REAL(wp) :: erel !< latent energy ballance (W)
3789	REAL(wp) :: esw !< Energy-loss through sweat evap. (W)
3790	REAL(wp) :: facl !< Surface area extension through clothing (factor)
3791	REAL(wp) :: feff !< Surface modification by posture (factor)
3792	REAL(wp) :: rdcl !< Diffusion resistence of clothing (factor)
3793	REAL(wp) :: rdsk !< Diffusion resistence of skin (factor)
3794	REAL(wp) :: rtv
3795	REAL(wp) :: vpts !< Sat. vapor pressure over skin (hPa)
3796	REAL(wp) :: tcl !< Clothing temperature (degree_C)
3797	REAL(wp) :: tsk !< Skin temperature (degree_C)
3798	REAL(wp) :: wetsk !< Fraction of wet skin (factor)
3799	!
3800	!-- Variables:
3801	REAL(wp) :: int_heat !< Internal heat (W)
3802	!
3803	!-- MEMI configuration
3804	REAL(wp) :: age !< Persons age (a)
3805	REAL(wp) :: clo !< Clothing insulation index (clo)
3806	REAL(wp) :: eta !< Work efficiency (dimensionless)
3807	REAL(wp) :: fcl !< Surface area modification by clothing (factor)
3808	REAL(wp) :: ht !< Persons height (m)
3809	REAL(wp) :: mbody !< Persons body mass (kg)
3810	REAL(wp) :: work !< Work load (W)
3811	! INTEGER(iwp) :: pos !< Posture: 1 = standing, 2 = sitting
3812	! INTEGER(iwp) :: sex !< Sex: 1 = male, 2 = female
3813	!
3814	!-- Configuration, keep standard parameters!
3815	age = 35.0_wp
3816	mbody = 75.0_wp
3817	ht = 1.75_wp
3818	work = 80.0_wp
3819	eta = 0.0_wp
3820	clo = 0.9_wp
3821	fcl = 1.15_wp
3822	!
3823	!-- Call subfunctions
3824	CALL in_body( age, eta, ere, erel, ht, int_heat, mbody, pair, rtv, ta, vpa, work )
3825
3826	CALL heat_exch( acl, adu, aeff, clo, ere, erel, esw, facl, fcl, feff, ht, int_heat, mbody, &
3827	pair, rdcl, rdsk, ta, tcl, tmrt, tsk, v, vpa, vpts, wetsk )
3828
3829	CALL pet_iteration( acl, adu, aeff, esw, facl, feff, int_heat, pair, rdcl, rdsk, rtv, ta, tcl, &
3830	tsk, pet_ij, vpts, wetsk )
3831
3832
3833	END SUBROUTINE calculate_pet_static
3834
3835
3836	!--------------------------------------------------------------------------------------------------!
3837	! Description:
3838	! ------------
3839	!> Calculate internal energy ballance
3840	!--------------------------------------------------------------------------------------------------!
3841	SUBROUTINE in_body( age, eta, ere, erel, ht, int_heat, mbody, pair, rtv, ta, vpa, work )
3842	!
3843	!-- Input arguments:
3844	REAL(wp), INTENT( IN ) :: age !< Persons age (a)
3845	REAL(wp), INTENT( IN ) :: eta !< Work efficiency (dimensionless)
3846	REAL(wp), INTENT( IN ) :: ht !< Persons height (m)
3847	REAL(wp), INTENT( IN ) :: mbody !< Persons body mass (kg)
3848	REAL(wp), INTENT( IN ) :: pair !< air pressure (hPa)
3849	REAL(wp), INTENT( IN ) :: ta !< air temperature (degree_C)
3850	REAL(wp), INTENT( IN ) :: vpa !< vapor pressure (hPa)
3851	REAL(wp), INTENT( IN ) :: work !< Work load (W)
3852	!
3853	!-- Output arguments:
3854	REAL(wp), INTENT( OUT ) :: ere !< energy ballance (W)
3855	REAL(wp), INTENT( OUT ) :: erel !< latent energy ballance (W)
3856	REAL(wp), INTENT( OUT ) :: int_heat !< internal heat production (W)
3857	REAL(wp), INTENT( OUT ) :: rtv !< respiratory volume
3858	!
3859	!-- Internal variables:
3860	REAL(wp) :: eres !< Sensible respiratory heat flux (W)
3861	REAL(wp) :: met
3862	REAL(wp) :: tex
3863	REAL(wp) :: vpex
3864
3865	!
3866	!-- Metabolic heat production
3867	met = 3.45_wp * mbody*( 3.0_wp / 4.0_wp ) (1.0_wp + 0.004_wp * &
3868	( 30.0_wp - age) + 0.010_wp * ( ( ht * 100.0_wp / &
3869	( mbody**( 1.0_wp / 3.0_wp ) ) ) - 43.4_wp ) )
3870	met = work + met
3871	int_heat = met * (1.0_wp - eta)
3872	!
3873	!-- Sensible respiration energy
3874	tex = 0.47_wp * ta + 21.0_wp
3875	rtv = 1.44_wp * 10.0_wp*(-6.0_wp) met
3876	eres = c_p * (ta - tex) * rtv
3877	!
3878	!-- Latent respiration energy
3879	vpex = 6.11_wp * 10.0_wp*( 7.45_wp tex / ( 235.0_wp + tex ) )
3880	erel = 0.623_wp * l_v / pair * ( vpa - vpex ) * rtv
3881	!
3882	!-- Sum of the results
3883	ere = eres + erel
3884
3885	END SUBROUTINE in_body
3886
3887
3888	!--------------------------------------------------------------------------------------------------!
3889	! Description:
3890	! ------------
3891	!> Calculate heat gain or loss
3892	!--------------------------------------------------------------------------------------------------!
3893	SUBROUTINE heat_exch( acl, adu, aeff, clo, ere, erel, esw, facl, fcl, feff, ht, int_heat, mbody, &
3894	pair, rdcl, rdsk, ta, tcl, tmrt, tsk, v, vpa, vpts, wetsk )
3895
3896	!
3897	!-- Input arguments:
3898	REAL(wp), INTENT( IN ) :: clo !< clothing insulation (clo)
3899	REAL(wp), INTENT( IN ) :: fcl !< factor for surface area increase by clothing
3900	REAL(wp), INTENT( IN ) :: ere !< Energy ballance (W)
3901	REAL(wp), INTENT( IN ) :: erel !< Latent energy ballance (W)
3902	REAL(wp), INTENT( IN ) :: ht !< height (m)
3903	REAL(wp), INTENT( IN ) :: int_heat !< internal heat production (W)
3904	REAL(wp), INTENT( IN ) :: mbody !< body mass (kg)
3905	REAL(wp), INTENT( IN ) :: pair !< Air pressure (hPa)
3906	REAL(wp), INTENT( IN ) :: ta !< Air temperature (degree_C)
3907	REAL(wp), INTENT( IN ) :: tmrt !< Mean radiant temperature (degree_C)
3908	REAL(wp), INTENT( IN ) :: v !< Wind speed (m/s)
3909	REAL(wp), INTENT( IN ) :: vpa !< Vapor pressure (hPa)
3910	!
3911	!-- Output arguments:
3912	REAL(wp), INTENT( OUT ) :: acl !< Clothing surface area (mÂ²)
3913	REAL(wp), INTENT( OUT ) :: adu !< Du-Bois area (mÂ²)
3914	REAL(wp), INTENT( OUT ) :: aeff !< Effective surface area (mÂ²)
3915	REAL(wp), INTENT( OUT ) :: esw !< Energy-loss through sweat evap. (W)
3916	REAL(wp), INTENT( OUT ) :: facl !< Surface area extension through clothing (factor)
3917	REAL(wp), INTENT( OUT ) :: feff !< Surface modification by posture (factor)
3918	REAL(wp), INTENT( OUT ) :: rdcl !< Diffusion resistence of clothing (factor)
3919	REAL(wp), INTENT( OUT ) :: rdsk !< Diffusion resistence of skin (factor)
3920	REAL(wp), INTENT( OUT ) :: tcl !< Clothing temperature (degree_C)
3921	REAL(wp), INTENT( OUT ) :: tsk !< Skin temperature (degree_C)
3922	REAL(wp), INTENT( OUT ) :: vpts !< Sat. vapor pressure over skin (hPa)
3923	REAL(wp), INTENT( OUT ) :: wetsk !< Fraction of wet skin (dimensionless)
3924	!
3925	!-- Cconstants:
3926	! REAL(wp), PARAMETER :: cair = 1010.0_wp !< replaced by c_p
3927	REAL(wp), PARAMETER :: cb = 3640.0_wp !<
3928	REAL(wp), PARAMETER :: emcl = 0.95_wp !< Longwave emission coef. of cloth
3929	REAL(wp), PARAMETER :: emsk = 0.99_wp !< Longwave emission coef. of skin
3930	! REAL(wp), PARAMETER :: evap = 2.42_wp * 10.0_wp **6.0_wp !< replaced by l_v
3931	REAL(wp), PARAMETER :: food = 0.0_wp !< Heat gain by food (W)
3932	REAL(wp), PARAMETER :: po = 1013.25_wp !< Air pressure at sea level (hPa)
3933	REAL(wp), PARAMETER :: rob = 1.06_wp !<
3934	!
3935	!-- Internal variables
3936	INTEGER(iwp) :: count1 !< running index
3937	INTEGER(iwp) :: count3 !< running index
3938	INTEGER(iwp) :: j !< running index
3939	INTEGER(iwp) :: i !< running index
3940
3941	LOGICAL :: skipincreasecount !< iteration control flag
3942
3943	REAL(wp) :: cbare !< Convection through bare skin
3944	REAL(wp) :: cclo !< Convection through clothing
3945	REAL(wp) :: csum !< Convection in total
3946	REAL(wp) :: di !< difference between r1 and r2
3947	REAL(wp) :: ed !< energy transfer by diffusion (W)
3948	REAL(wp) :: enbal !< energy ballance (W)
3949	REAL(wp) :: enbal2 !< energy ballance (storage, last cycle)
3950	REAL(wp) :: eswdif !< difference between sweat production and evaporation potential
3951	REAL(wp) :: eswphy !< sweat created by physiology
3952	REAL(wp) :: eswpot !< potential sweat evaporation
3953	REAL(wp) :: fec !<
3954	REAL(wp) :: hc !<
3955	REAL(wp) :: he !<
3956	REAL(wp) :: htcl !<
3957	REAL(wp) :: r1 !<
3958	REAL(wp) :: r2 !<
3959	REAL(wp) :: rbare !< Radiational loss of bare skin (W/mÂ²)
3960	REAL(wp) :: rcl !<
3961	REAL(wp) :: rclo !< Radiational loss of clothing (W/mÂ²)
3962	REAL(wp) :: rclo2 !< Longwave radiation gain or loss (W/mÂ²)
3963	REAL(wp) :: rsum !< Radiational loss or gain (W/mÂ²)
3964	REAL(wp) :: sw !<
3965	! REAL(wp) :: swf !< female factor, currently unused
3966	REAL(wp) :: swm !<
3967	REAL(wp) :: tbody !<
3968	REAL(wp) :: vb !<
3969	REAL(wp) :: vb1 !<
3970	REAL(wp) :: vb2 !<
3971	REAL(wp) :: wd !<
3972	REAL(wp) :: wr !<
3973	REAL(wp) :: ws !<
3974	REAL(wp) :: wsum !<
3975	REAL(wp) :: xx !< modification step (K)
3976	REAL(wp) :: y !< fraction of bare skin
3977
3978	REAL(wp) :: c(0:10) !< Core temperature array (degree_C)
3979	REAL(wp) :: tcore(1:7) !<
3980
3981	!
3982	!-- Initialize
3983	wetsk = 0.0_wp !< skin is dry everywhere on init (no non-evaporated sweat)
3984	!
3985	!-- Set Du Bois Area for the sample person
3986	adu = 0.203_wp * mbody*0.425_wp ht**0.725_wp
3987	!
3988	!-- Initialize convective heat considering local air preassure
3989	hc = 2.67_wp + ( 6.5_wp * v**0.67_wp )
3990	hc = hc * ( pair / po )**0.55_wp
3991	!
3992	!-- Set surface modification by posture (the person will always stand)
3993	feff = 0.725_wp !< Posture: 0.725 for stading
3994	!
3995	!-- Set surface modification by clothing
3996	facl = ( - 2.36_wp + 173.51_wp * clo - 100.76_wp * clo * clo + 19.28_wp * ( clo**3.0_wp ) ) &
3997	/ 100.0_wp
3998	IF ( facl > 1.0_wp ) facl = 1.0_wp
3999	!
4000	!-- Initialize heat resistences
4001	rcl = ( clo / 6.45_wp ) / facl
4002	IF ( clo >= 2.0_wp ) y = 1.0_wp
4003	IF ( ( clo > 0.6_wp ) .AND. ( clo < 2.0_wp ) ) y = ( ht - 0.2_wp ) / ht
4004	IF ( ( clo <= 0.6_wp ) .AND. ( clo > 0.3_wp ) ) y = 0.5_wp
4005	IF ( ( clo <= 0.3_wp ) .AND. ( clo > 0.0_wp ) ) y = 0.1_wp
4006	r2 = adu * ( fcl - 1.0_wp + facl ) / ( 2.0_wp * 3.14_wp * ht * y )
4007	r1 = facl * adu / ( 2.0_wp * 3.14_wp * ht * y )
4008	di = r2 - r1
4009
4010	!
4011	!-- Estimate skin temperatur
4012	DO j = 1, 7
4013
4014	tsk = 34.0_wp
4015	count1 = 0_iwp
4016	tcl = ( ta + tmrt + tsk ) / 3.0_wp
4017	count3 = 1_iwp
4018	enbal2 = 0.0_wp
4019
4020	DO i = 1, 100 ! allow for 100 iterations max
4021	acl = adu * facl + adu * ( fcl - 1.0_wp )
4022	rclo2 = emcl * sigma_sb * ( ( tcl + degc_to_k )**4.0_wp - &
4023	( tmrt + degc_to_k )*4.0_wp ) feff
4024	htcl = 6.28_wp * ht * y * di / ( rcl * LOG( r2 / r1 ) * acl )
4025	tsk = 1.0_wp / htcl * ( hc * ( tcl - ta ) + rclo2 ) + tcl
4026	!
4027	!-- Radiation saldo
4028	aeff = adu * feff
4029	rbare = aeff * ( 1.0_wp - facl ) * emsk * sigma_sb * &
4030	( ( tmrt + degc_to_k )4.0_wp - ( tsk + degc_to_k )4.0_wp )
4031	rclo = feff * acl * emcl * sigma_sb * &
4032	( ( tmrt + degc_to_k )4.0_wp - ( tcl + degc_to_k )4.0_wp )
4033	rsum = rbare + rclo
4034	!
4035	!-- Convection
4036	cbare = hc * ( ta - tsk ) * adu * ( 1.0_wp - facl )
4037	cclo = hc * ( ta - tcl ) * acl
4038	csum = cbare + cclo
4039	!
4040	!-- Core temperature
4041	c(0) = int_heat + ere
4042	c(1) = adu * rob * cb
4043	c(2) = 18.0_wp - 0.5_wp * tsk
4044	c(3) = 5.28_wp * adu * c(2)
4045	c(4) = 0.0208_wp * c(1)
4046	c(5) = 0.76075_wp * c(1)
4047	c(6) = c(3) - c(5) - tsk * c(4)
4048	c(7) = - c(0) * c(2) - tsk * c(3) + tsk * c(5)
4049	c(8) = c(6) * c(6) - 4.0_wp * c(4) * c(7)
4050	c(9) = 5.28_wp * adu - c(5) - c(4) * tsk
4051	c(10) = c(9) * c(9) - 4.0_wp * c(4) * ( c(5) * tsk - c(0) - 5.28_wp * adu * tsk )
4052
4053	IF ( ABS( tsk - 36.0_wp ) < 0.00001_wp ) tsk = 36.01_wp
4054	tcore(7) = c(0) / ( 5.28_wp * adu + c(1) * 6.3_wp / 3600.0_wp ) + tsk
4055	tcore(3) = c(0) / ( 5.28_wp * adu + ( c(1) * 6.3_wp / 3600.0_wp ) / &
4056	( 1.0_wp + 0.5_wp * ( 34.0_wp - tsk ) ) ) + tsk
4057	IF ( c(10) >= 0.0_wp ) THEN
4058	tcore(6) = ( - c(9) - c(10)*0.5_wp ) / ( 2.0_wp c(4) )
4059	tcore(1) = ( - c(9) + c(10)*0.5_wp ) / ( 2.0_wp c(4) )
4060	ENDIF
4061
4062	IF ( c(8) >= 0.0_wp ) THEN
4063	tcore(2) = ( - c(6) + ABS( c(8) )*0.5_wp ) / ( 2.0_wp c(4) )
4064	tcore(5) = ( - c(6) - ABS( c(8) )*0.5_wp ) / ( 2.0_wp c(4) )
4065	tcore(4) = c(0) / ( 5.28_wp * adu + c(1) * 1.0_wp / 40.0_wp ) + tsk
4066	ENDIF
4067	!
4068	!-- Transpiration
4069	tbody = 0.1_wp * tsk + 0.9_wp * tcore(j)
4070	swm = 304.94_wp * ( tbody - 36.6_wp ) * adu / 3600000.0_wp
4071	vpts = 6.11_wp * 10.0_wp*( 7.45_wp tsk / ( 235.0_wp + tsk ) )
4072
4073	IF ( tbody <= 36.6_wp ) swm = 0.0_wp !< no need for sweating
4074
4075	sw = swm
4076	eswphy = - sw * l_v
4077	he = 0.633_wp * hc / ( pair * c_p )
4078	fec = 1.0_wp / ( 1.0_wp + 0.92_wp * hc * rcl )
4079	eswpot = he * ( vpa - vpts ) * adu * l_v * fec
4080	wetsk = eswphy / eswpot
4081
4082	IF ( wetsk > 1.0_wp ) wetsk = 1.0_wp
4083	!
4084	!-- Sweat production > evaporation?
4085	eswdif = eswphy - eswpot
4086
4087	IF ( eswdif <= 0.0_wp ) esw = eswpot !< Limit is evaporation
4088	IF ( eswdif > 0.0_wp ) esw = eswphy !< Limit is sweat production
4089	IF ( esw > 0.0_wp ) esw = 0.0_wp !< Sweat can't be evaporated, no more cooling
4090	!< effect
4091	!
4092	!-- Diffusion
4093	rdsk = 0.79_wp * 10.0_wp**7.0_wp
4094	rdcl = 0.0_wp
4095	ed = l_v / ( rdsk + rdcl ) * adu * ( 1.0_wp - wetsk ) * ( vpa - vpts )
4096	!
4097	!-- Max vb
4098	vb1 = 34.0_wp - tsk
4099	vb2 = tcore(j) - 36.6_wp
4100
4101	IF ( vb2 < 0.0_wp ) vb2 = 0.0_wp
4102	IF ( vb1 < 0.0_wp ) vb1 = 0.0_wp
4103	vb = ( 6.3_wp + 75.0_wp * vb2 ) / ( 1.0_wp + 0.5_wp * vb1 )
4104	!
4105	!-- Energy ballence
4106	enbal = int_heat + ed + ere + esw + csum + rsum + food
4107	!
4108	!-- Clothing temperature
4109	xx = 0.001_wp
4110	IF ( count1 == 0_iwp ) xx = 1.0_wp
4111	IF ( count1 == 1_iwp ) xx = 0.1_wp
4112	IF ( count1 == 2_iwp ) xx = 0.01_wp
4113	IF ( count1 == 3_iwp ) xx = 0.001_wp
4114
4115	IF ( enbal > 0.0_wp ) tcl = tcl + xx
4116	IF ( enbal < 0.0_wp ) tcl = tcl - xx
4117
4118	skipincreasecount = .FALSE.
4119	IF ( ( (enbal <= 0.0_wp ) .AND. (enbal2 > 0.0_wp ) ) .OR. &
4120	( ( enbal >= 0.0_wp ) .AND. ( enbal2 < 0.0_wp ) ) ) THEN
4121	skipincreasecount = .TRUE.
4122	ELSE
4123	enbal2 = enbal
4124	count3 = count3 + 1_iwp
4125	ENDIF
4126
4127	IF ( ( count3 > 200_iwp ) .OR. skipincreasecount ) THEN
4128	IF ( count1 < 3_iwp ) THEN
4129	count1 = count1 + 1_iwp
4130	enbal2 = 0.0_wp
4131	ELSE
4132	EXIT
4133	ENDIF
4134	ENDIF
4135	ENDDO
4136
4137	IF ( count1 == 3_iwp ) THEN
4138	SELECT CASE ( j )
4139	CASE ( 2, 5)
4140	IF ( .NOT. ( ( tcore(j) >= 36.6_wp ) .AND. ( tsk <= 34.050_wp ) ) ) CYCLE
4141	CASE ( 6, 1 )
4142	IF ( c(10) < 0.0_wp ) CYCLE
4143	IF ( .NOT. ( ( tcore(j) >= 36.6_wp ) .AND. ( tsk > 33.850_wp ) ) ) CYCLE
4144	CASE ( 3 )
4145	IF ( .NOT. ( ( tcore(j) < 36.6_wp ) .AND. ( tsk <= 34.000_wp ) ) ) CYCLE
4146	CASE ( 7 )
4147	IF ( .NOT. ( ( tcore(j) < 36.6_wp ) .AND. ( tsk > 34.000_wp ) ) ) CYCLE
4148	CASE default
4149	END SELECT
4150	ENDIF
4151
4152	IF ( ( j /= 4_iwp ) .AND. ( vb >= 91.0_wp ) ) CYCLE
4153	IF ( ( j == 4_iwp ) .AND. ( vb < 89.0_wp ) ) CYCLE
4154	IF ( vb > 90.0_wp ) vb = 90.0_wp
4155	!
4156	!-- Loses by water
4157	ws = sw * 3600.0_wp * 1000.0_wp
4158	IF ( ws > 2000.0_wp ) ws = 2000.0_wp
4159	wd = ed / l_v * 3600.0_wp * ( -1000.0_wp )
4160	wr = erel / l_v * 3600.0_wp * ( -1000.0_wp )
4161
4162	wsum = ws + wr + wd
4163
4164	RETURN
4165	ENDDO
4166	END SUBROUTINE heat_exch
4167
4168	!--------------------------------------------------------------------------------------------------!
4169	! Description:
4170	! ------------
4171	!> Calculate PET
4172	!--------------------------------------------------------------------------------------------------!
4173	SUBROUTINE pet_iteration( acl, adu, aeff, esw, facl, feff, int_heat, pair, rdcl, rdsk, rtv, ta, &
4174	tcl, tsk, pet_ij, vpts, wetsk )
4175	!
4176	!-- Input arguments:
4177	REAL(wp), INTENT( IN ) :: acl !< clothing surface area (mÂ²)
4178	REAL(wp), INTENT( IN ) :: adu !< Du-Bois area (mÂ²)
4179	REAL(wp), INTENT( IN ) :: esw !< energy-loss through sweat evap. (W)
4180	REAL(wp), INTENT( IN ) :: facl !< surface area extension through clothing (factor)
4181	REAL(wp), INTENT( IN ) :: feff !< surface modification by posture (factor)
4182	REAL(wp), INTENT( IN ) :: int_heat !< internal heat production (W)
4183	REAL(wp), INTENT( IN ) :: pair !< air pressure (hPa)
4184	REAL(wp), INTENT( IN ) :: rdcl !< diffusion resistence of clothing (factor)
4185	REAL(wp), INTENT( IN ) :: rdsk !< diffusion resistence of skin (factor)
4186	REAL(wp), INTENT( IN ) :: rtv !< respiratory volume
4187	REAL(wp), INTENT( IN ) :: ta !< air temperature (degree_C)
4188	REAL(wp), INTENT( IN ) :: tcl !< clothing temperature (degree_C)
4189	REAL(wp), INTENT( IN ) :: tsk !< skin temperature (degree_C)
4190	REAL(wp), INTENT( IN ) :: vpts !< sat. vapor pressure over skin (hPa)
4191	REAL(wp), INTENT( IN ) :: wetsk !< fraction of wet skin (dimensionless)
4192	!
4193	!-- Output arguments:
4194	REAL(wp), INTENT( OUT ) :: aeff !< effective surface area (mÂ²)
4195	REAL(wp), INTENT( OUT ) :: pet_ij !< PET (degree_C)
4196	!
4197	!-- Cconstants:
4198	REAL(wp), PARAMETER :: emcl = 0.95_wp !< Longwave emission coef. of cloth
4199	REAL(wp), PARAMETER :: emsk = 0.99_wp !< Longwave emission coef. of skin
4200	REAL(wp), PARAMETER :: po = 1013.25_wp !< Air pressure at sea level (hPa)
4201	!
4202	!-- Internal variables
4203	INTEGER ( iwp ) :: count1 !< running index
4204	INTEGER ( iwp ) :: i !< running index
4205
4206	REAL ( wp ) :: cbare !< Convection through bare skin
4207	REAL ( wp ) :: cclo !< Convection through clothing
4208	REAL ( wp ) :: csum !< Convection in total
4209	REAL ( wp ) :: ed !< Diffusion (W)
4210	REAL ( wp ) :: enbal !< Energy ballance (W)
4211	REAL ( wp ) :: enbal2 !< Energy ballance (last iteration cycle)
4212	REAL ( wp ) :: ere !< Energy ballance result (W)
4213	REAL ( wp ) :: erel !< Latent energy ballance (W)
4214	REAL ( wp ) :: eres !< Sensible respiratory heat flux (W)
4215	REAL ( wp ) :: hc !<
4216	REAL ( wp ) :: rbare !< Radiational loss of bare skin (W/mÂ²)
4217	REAL ( wp ) :: rclo !< Radiational loss of clothing (W/mÂ²)
4218	REAL ( wp ) :: rsum !< Radiational loss or gain (W/mÂ²)
4219	REAL ( wp ) :: tex !< Temperat. of exhaled air (degree_C)
4220	REAL ( wp ) :: vpex !< Vapor pressure of exhaled air (hPa)
4221	REAL ( wp ) :: xx !< Delta PET per iteration (K)
4222
4223
4224	pet_ij = ta
4225	enbal2 = 0.0_wp
4226
4227	DO count1 = 0, 3
4228	DO i = 1, 125 ! 500 / 4
4229	hc = 2.67_wp + 6.5_wp * 0.1_wp**0.67_wp
4230	hc = hc * ( pair / po )**0.55_wp
4231	!
4232	!-- Radiation
4233	aeff = adu * feff
4234	rbare = aeff * ( 1.0_wp - facl ) * emsk * sigma_sb * &
4235	( ( pet_ij + degc_to_k )4.0_wp - ( tsk + degc_to_k )4.0_wp )
4236	rclo = feff * acl * emcl * sigma_sb * &
4237	( ( pet_ij + degc_to_k )4.0_wp - ( tcl + degc_to_k )4.0_wp )
4238	rsum = rbare + rclo
4239	!
4240	!-- Covection
4241	cbare = hc * ( pet_ij - tsk ) * adu * ( 1.0_wp - facl )
4242	cclo = hc * ( pet_ij - tcl ) * acl
4243	csum = cbare + cclo
4244	!
4245	!-- Diffusion
4246	ed = l_v / ( rdsk + rdcl ) * adu * ( 1.0_wp - wetsk ) * ( 12.0_wp - vpts )
4247	!
4248	!-- Respiration
4249	tex = 0.47_wp * pet_ij + 21.0_wp
4250	eres = c_p * ( pet_ij - tex ) * rtv
4251	vpex = 6.11_wp * 10.0_wp*( 7.45_wp tex / ( 235.0_wp + tex ) )
4252	erel = 0.623_wp * l_v / pair * ( 12.0_wp - vpex ) * rtv
4253	ere = eres + erel
4254	!
4255	!-- Energy ballance
4256	enbal = int_heat + ed + ere + esw + csum + rsum
4257	!
4258	!-- Iteration concerning ta
4259	xx = 0.001_wp
4260	IF ( count1 == 0_iwp ) xx = 1.0_wp
4261	IF ( count1 == 1_iwp ) xx = 0.1_wp
4262	IF ( count1 == 2_iwp ) xx = 0.01_wp
4263	! IF ( count1 == 3_iwp ) xx = 0.001_wp
4264	IF ( enbal > 0.0_wp ) pet_ij = pet_ij - xx
4265	IF ( enbal < 0.0_wp ) pet_ij = pet_ij + xx
4266	IF ( ( enbal <= 0.0_wp ) .AND. ( enbal2 > 0.0_wp ) ) EXIT
4267	IF ( ( enbal >= 0.0_wp ) .AND. ( enbal2 < 0.0_wp ) ) EXIT
4268
4269	enbal2 = enbal
4270	ENDDO
4271	ENDDO
4272	END SUBROUTINE pet_iteration
4273
4274	!
4275	!-- UVEM specific subroutines
4276
4277	!--------------------------------------------------------------------------------------------------!
4278	! Description:
4279	! ------------
4280	!> Module-specific routine for new module
4281	!--------------------------------------------------------------------------------------------------!
4282	SUBROUTINE uvem_solar_position
4283
4284	USE control_parameters, &
4285	ONLY: latitude, longitude, time_SINce_reference_point
4286
4287	IMPLICIT NONE
4288
4289	INTEGER(iwp) :: day_of_year = 0 !< day of year
4290
4291	REAL(wp) :: alpha = 0.0_wp !< solar azimuth angle in radiant
4292	REAL(wp) :: declination = 0.0_wp !< declination
4293	REAL(wp) :: dtor = 0.0_wp !< factor to convert degree to radiant
4294	REAL(wp) :: js = 0.0_wp !< parameter for solar position calculation
4295	REAL(wp) :: lat = 52.39_wp !< latitude
4296	REAL(wp) :: lon = 9.7_wp !< longitude
4297	REAL(wp) :: second_of_day = 0.0_wp !< current second of the day
4298	REAL(wp) :: thetar = 0.0_wp !< angle for solar zenith angle calculation
4299	REAL(wp) :: thetasr = 0.0_wp !< angle for solar azimuth angle calculation
4300	REAL(wp) :: zgl = 0.0_wp !< calculated exposure by direct beam
4301	REAL(wp) :: woz = 0.0_wp !< calculated exposure by diffuse radiation
4302	REAL(wp) :: wsp = 0.0_wp !< calculated exposure by direct beam
4303
4304
4305	CALL get_date_time( time_SINce_reference_point, day_of_year = day_of_year, &
4306	second_of_day = second_of_day )
4307	dtor = pi / 180.0_wp
4308	lat = latitude
4309	lon = longitude
4310	!
4311	!-- Calculation of js, necessary for calculation of equation of time (zgl) :
4312	js= 72.0_wp * ( REAL( day_of_year, KIND = wp ) + ( second_of_day / 86400.0_wp ) ) / 73.0_wp
4313	!
4314	!-- Calculation of equation of time (zgl):
4315	zgl = 0.0066_wp + 7.3525_wp * COS( ( js + 85.9_wp ) * dtor ) + 9.9359_wp * &
4316	COS( ( 2.0_wp * js + 108.9_wp ) * dtor ) + 0.3387_wp * COS( ( 3 * js + 105.2_wp ) * dtor )
4317	!
4318	!-- Calculation of apparent solar time woz:
4319	woz = ( ( second_of_day / 3600.0_wp ) - ( 4.0_wp * ( 15.0_wp - lon ) ) / 60.0_wp ) + &
4320	( zgl / 60.0_wp )
4321	!
4322	!-- Calculation of hour angle (wsp):
4323	wsp = ( woz - 12.0_wp ) * 15.0_wp
4324	!
4325	!-- Calculation of declination:
4326	declination = 0.3948_wp - 23.2559_wp * COS( ( js + 9.1_wp ) * dtor ) - &
4327	0.3915_wp * COS( ( 2.0_wp * js + 5.4_wp ) * dtor ) - 0.1764_wp * &
4328	COS( ( 3.0_wp * js + 26.0_wp ) * dtor )
4329	!
4330	!-- Calculation of solar zenith angle
4331	thetar = ACOS( SIN( lat * dtor) * SIN( declination * dtor ) + COS( wsp * dtor ) * &
4332	COS( lat * dtor ) * COS( declination * dtor ) )
4333	thetasr = ASIN( SIN( lat * dtor) * SIN( declination * dtor ) + COS( wsp * dtor ) * &
4334	COS( lat * dtor ) * COS( declination * dtor ) )
4335	sza = thetar / dtor
4336	!
4337	!-- calculation of solar azimuth angle
4338	IF (woz <= 12.0_wp) alpha = pi - ACOS( ( SIN(thetasr) * SIN( lat * dtor ) - &
4339	SIN( declination * dtor ) ) / ( COS(thetasr) * COS( lat * dtor ) ) )
4340	IF (woz > 12.0_wp) alpha = pi + ACOS( ( SIN(thetasr) * SIN( lat * dtor ) - &
4341	SIN( declination * dtor ) ) / ( COS(thetasr) * COS( lat * dtor ) ) )
4342	saa = alpha / dtor
4343
4344	END SUBROUTINE uvem_solar_position
4345
4346
4347	!--------------------------------------------------------------------------------------------------!
4348	! Description:
4349	! ------------
4350	!> Module-specific routine for new module
4351	!--------------------------------------------------------------------------------------------------!
4352	SUBROUTINE bio_calculate_uv_exposure
4353
4354	USE indices, &
4355	ONLY: nxl, nxr, nyn, nys
4356
4357
4358	IMPLICIT NONE
4359
4360	INTEGER(iwp) :: i !< loop index in x direction
4361	INTEGER(iwp) :: j !< loop index in y direction
4362	INTEGER(iwp) :: szai !< loop index for different sza values
4363
4364	CALL uvem_solar_position
4365
4366	IF (sza >= 90) THEN
4367	vitd3_exposure(:,:) = 0.0_wp
4368	ELSE
4369
4370	DO ai = 0, 35
4371	DO zi = 0, 9
4372	projection_area_lookup_table(ai,zi) = uvem_projarea_f%var(clothing,zi,ai)
4373	ENDDO
4374	ENDDO
4375	DO ai = 0, 35
4376	DO zi = 0, 9
4377	integration_array(ai,zi) = uvem_integration_f%var(zi,ai)
4378	ENDDO
4379	ENDDO
4380	DO ai = 0, 2
4381	DO zi = 0, 90
4382	irradiance_lookup_table(ai,zi) = uvem_irradiance_f%var(zi,ai)
4383	ENDDO
4384	ENDDO
4385	DO ai = 0, 35
4386	DO zi = 0, 9
4387	DO szai = 0, 90
4388	radiance_lookup_table(ai,zi,szai) = uvem_radiance_f%var(szai,zi,ai)
4389	ENDDO
4390	ENDDO
4391	ENDDO
4392
4393
4394	!-- Rotate 3D-Model human to desired direction
4395	projection_area_temp( 0:35,:) = projection_area_lookup_table
4396	projection_area_temp(36:71,:) = projection_area_lookup_table
4397	IF ( .NOT. turn_to_sun ) startpos_human = orientation_angle / 10.0_wp
4398	IF ( turn_to_sun ) startpos_human = saa / 10.0_wp
4399	DO ai = 0, 35
4400	xfactor = ( startpos_human ) - INT( startpos_human )
4401	DO zi = 0, 9
4402	projection_area(ai,zi) = ( projection_area_temp( 36 - &
4403	INT( startpos_human ) - 1 + ai , zi)&
4404	* ( xfactor ) ) &
4405	+ ( projection_area_temp( 36 - &
4406	INT( startpos_human ) + ai , zi) &
4407	* ( 1.0_wp - xfactor ) )
4408	ENDDO
4409	ENDDO
4410	!
4411	!
4412	!-- Interpolate to accurate Solar Zenith Angle
4413	DO ai = 0, 35
4414	xfactor = ( sza )-INT( sza )
4415	DO zi = 0, 9
4416	radiance_array(ai,zi) = ( radiance_lookup_table(ai, zi, INT( sza ) ) * &
4417	( 1.0_wp - xfactor) ) + &
4418	( radiance_lookup_table(ai,zi,INT( sza ) + 1) * xfactor )
4419	ENDDO
4420	ENDDO
4421	DO iq = 0, 2
4422	irradiance(iq) = ( irradiance_lookup_table(iq, INT( sza ) ) * ( 1.0_wp - xfactor)) + &
4423	( irradiance_lookup_table(iq, INT( sza ) + 1) * xfactor )
4424	ENDDO
4425	!
4426	!-- Interpolate to accurate Solar Azimuth Angle
4427	IF ( sun_in_south ) THEN
4428	startpos_saa_float = 180.0_wp / 10.0_wp
4429	ELSE
4430	startpos_saa_float = saa / 10.0_wp
4431	ENDIF
4432	radiance_array_temp( 0:35,:) = radiance_array
4433	radiance_array_temp(36:71,:) = radiance_array
4434	xfactor = (startpos_saa_float) - INT( startpos_saa_float )
4435	DO ai = 0, 35
4436	DO zi = 0, 9
4437	radiance_array(ai,zi) = ( radiance_array_temp(36 - &
4438	INT( startpos_saa_float ) - 1 + ai, zi) &
4439	* ( xfactor ) ) &
4440	+ ( radiance_array_temp(36 - &
4441	INT( startpos_saa_float ) + ai, zi) &
4442	* ( 1.0_wp - xfactor ) )
4443	ENDDO
4444	ENDDO
4445
4446	!
4447	!-- Calculate Projectionarea for direct beam
4448	projection_area_direct_temp( 0:35,:) = projection_area
4449	projection_area_direct_temp(36:71,:) = projection_area
4450	yfactor = ( sza / 10.0_wp ) - INT( sza / 10.0_wp )
4451	xfactor = ( startpos_saa_float ) - INT( startpos_saa_float )
4452	projection_area_direct_beam = ( projection_area_direct_temp( INT(startpos_saa_float) ,INT(sza/10.0_wp) ) * &
4453	( 1.0_wp - xfactor ) * ( 1.0_wp - yfactor ) ) + &
4454	( projection_area_direct_temp( INT(startpos_saa_float) + 1,INT(sza/10.0_wp) ) * &
4455	( xfactor ) * ( 1.0_wp - yfactor ) ) + &
4456	( projection_area_direct_temp( INT(startpos_saa_float) ,INT(sza/10.0_wp)+1) * &
4457	( 1.0_wp - xfactor ) * ( yfactor ) ) + &
4458	( projection_area_direct_temp( INT(startpos_saa_float) + 1,INT(sza/10.0_wp)+1) * &
4459	( xfactor ) * ( yfactor ) )
4460
4461
4462	DO i = nxl, nxr
4463	DO j = nys, nyn
4464	!
4465	!-- Extract obstruction from IBSET-Integer_Array
4466	IF (consider_obstructions ) THEN
4467	obstruction_temp1 = building_obstruction_f%var_3d(:,j,i)
4468	IF ( obstruction_temp1(0) /= 9 ) THEN
4469	DO pobi = 0, 44
4470	DO bi = 0, 7
4471	IF ( BTEST( obstruction_temp1(pobi), bi ) .EQV. .TRUE.) THEN
4472	obstruction_temp2( ( pobi * 8 ) + bi ) = 1
4473	ELSE
4474	obstruction_temp2( ( pobi * 8 ) + bi ) = 0
4475	ENDIF
4476	ENDDO
4477	ENDDO
4478	DO zi = 0, 9
4479	obstruction(:,zi) = obstruction_temp2( zi * 36 :( zi * 36) + 35 )
4480	ENDDO
4481	ELSE
4482	obstruction(:,:) = 0
4483	ENDIF
4484	ENDIF
4485	!
4486	!-- Calculated human exposure
4487	diffuse_exposure = SUM( radiance_array * projection_area * integration_array * &
4488	obstruction )
4489
4490	obstruction_direct_beam = obstruction( NINT( startpos_saa_float), &
4491	NINT( sza / 10.0_wp ) )
4492	IF (sza >= 89.99_wp) THEN
4493	sza = 89.99999_wp
4494	ENDIF
4495	!
4496	!-- Calculate direct normal irradiance (direct beam)
4497	direct_exposure = ( irradiance(1) / COS( pi * sza / 180.0_wp ) ) * &
4498	projection_area_direct_beam * obstruction_direct_beam
4499
4500	vitd3_exposure(j,i) = ( diffuse_exposure + direct_exposure ) / 1000.0_wp * 70.97_wp
4501	! unit = international units vitamin D per second
4502	ENDDO
4503	ENDDO
4504	ENDIF
4505
4506	END SUBROUTINE bio_calculate_uv_exposure
4507
4508	END MODULE biometeorology_mod

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source: palm/trunk/SOURCE/biometeorology_mod.f90 @ 4540

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