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source: palm/trunk/SOURCE/radiation_model.f90 @ 1683

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1	!> @file radiation_model.f90
2	!--------------------------------------------------------------------------------!
3	! This file is part of PALM.
4	!
5	! PALM is free software: you can redistribute it and/or modify it under the terms
6	! of the GNU General Public License as published by the Free Software Foundation,
7	! either version 3 of the License, or (at your option) any later version.
8	!
9	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
10	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
11	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
12	!
13	! You should have received a copy of the GNU General Public License along with
14	! PALM. If not, see <http://www.gnu.org/licenses/>.
15	!
16	! Copyright 1997-2015 Leibniz Universitaet Hannover
17	!--------------------------------------------------------------------------------!
18	!
19	! Current revisions:
20	! -----------------
21	!
22	!
23	! Former revisions:
24	! -----------------
25	! $Id: radiation_model.f90 1683 2015-10-07 23:57:51Z knoop $
26	!
27	! 1682 2015-10-07 23:56:08Z knoop
28	! Code annotations made doxygen readable
29	!
30	! 1606 2015-06-29 10:43:37Z maronga
31	! Added preprocessor directive __netcdf to allow for compiling without netCDF.
32	! Note, however, that RRTMG cannot be used without netCDF.
33	!
34	! 1590 2015-05-08 13:56:27Z maronga
35	! Bugfix: definition of character strings requires same length for all elements
36	!
37	! 1587 2015-05-04 14:19:01Z maronga
38	! Added albedo class for snow
39	!
40	! 1585 2015-04-30 07:05:52Z maronga
41	! Added support for RRTMG
42	!
43	! 1571 2015-03-12 16:12:49Z maronga
44	! Added missing KIND attribute. Removed upper-case variable names
45	!
46	! 1551 2015-03-03 14:18:16Z maronga
47	! Added support for data output. Various variables have been renamed. Added
48	! interface for different radiation schemes (currently: clear-sky, constant, and
49	! RRTM (not yet implemented).
50	!
51	! 1496 2014-12-02 17:25:50Z maronga
52	! Initial revision
53	!
54	!
55	! Description:
56	! ------------
57	!> Radiation models and interfaces
58	!> @todo move variable definitions used in init_radiation only to the subroutine
59	!> as they are no longer required after initialization.
60	!> @todo Output of full column vertical profiles used in RRTMG
61	!> @todo Output of other rrtm arrays (such as volume mixing ratios)
62	!> @todo Adapt for use with topography
63	!> @todo Remove 3D dummy arrays (such as clear-sky output)
64	!>
65	!> @note Many variables have a leading dummy dimension (0:0) in order to
66	!> match the assume-size shape expected by the RRTMG model.
67	!------------------------------------------------------------------------------!
68	MODULE radiation_model_mod
69
70
71	USE arrays_3d, &
72	ONLY: hyp, pt, q, ql, zw
73
74	USE cloud_parameters, &
75	ONLY: cp, l_v, nc_const, rho_l, sigma_gc
76
77	USE constants, &
78	ONLY: pi
79
80	USE control_parameters, &
81	ONLY: cloud_droplets, cloud_physics, g, initializing_actions, &
82	large_scale_forcing, lsf_surf, phi, pt_surface, &
83	surface_pressure, time_since_reference_point
84
85	USE indices, &
86	ONLY: nxl, nxlg, nxr, nxrg, nyn, nyng, nys, nysg, nzb_s_inner, nzb, nzt
87
88	USE kinds
89
90	#if defined ( __netcdf )
91	USE netcdf
92	#endif
93
94	USE netcdf_control, &
95	ONLY: dots_label, dots_num, dots_unit
96
97	#if defined ( __rrtmg )
98	USE parrrsw, &
99	ONLY: naerec, nbndsw
100
101	USE parrrtm, &
102	ONLY: nbndlw
103
104	USE rrtmg_lw_init, &
105	ONLY: rrtmg_lw_ini
106
107	USE rrtmg_sw_init, &
108	ONLY: rrtmg_sw_ini
109
110	USE rrtmg_lw_rad, &
111	ONLY: rrtmg_lw
112
113	USE rrtmg_sw_rad, &
114	ONLY: rrtmg_sw
115	#endif
116
117
118
119	IMPLICIT NONE
120
121	CHARACTER(10) :: radiation_scheme = 'clear-sky' ! 'constant', 'clear-sky', or 'rrtmg'
122
123	!
124	!-- Predefined Land surface classes (albedo_type) after Briegleb (1992)
125	CHARACTER(37), DIMENSION(0:16), PARAMETER :: albedo_type_name = (/ &
126	'user defined ', & ! 0
127	'ocean ', & ! 1
128	'mixed farming, tall grassland ', & ! 2
129	'tall/medium grassland ', & ! 3
130	'evergreen shrubland ', & ! 4
131	'short grassland/meadow/shrubland ', & ! 5
132	'evergreen needleleaf forest ', & ! 6
133	'mixed deciduous evergreen forest ', & ! 7
134	'deciduous forest ', & ! 8
135	'tropical evergreen broadleaved forest', & ! 9
136	'medium/tall grassland/woodland ', & ! 10
137	'desert, sandy ', & ! 11
138	'desert, rocky ', & ! 12
139	'tundra ', & ! 13
140	'land ice ', & ! 14
141	'sea ice ', & ! 15
142	'snow ' & ! 16
143	/)
144
145	INTEGER(iwp) :: albedo_type = 5, & !< Albedo surface type (default: short grassland)
146	day, & !< current day of the year
147	day_init = 172, & !< day of the year at model start (21/06)
148	dots_rad = 0 !< starting index for timeseries output
149
150
151
152
153
154
155	LOGICAL :: constant_albedo = .FALSE., & !< flag parameter indicating whether the albedo may change depending on zenith
156	lw_radiation = .TRUE., & !< flag parameter indicing whether longwave radiation shall be calculated
157	radiation = .FALSE., & !< flag parameter indicating whether the radiation model is used
158	sun_up = .TRUE., & !< flag parameter indicating whether the sun is up or down
159	sw_radiation = .TRUE. !< flag parameter indicing whether shortwave radiation shall be calculated
160
161	REAL(wp), PARAMETER :: sigma_sb = 5.67E-8_wp, & !< Stefan-Boltzmann constant
162	solar_constant = 1368.0_wp !< solar constant at top of atmosphere
163
164	REAL(wp) :: albedo = 9999999.9_wp, & !< NAMELIST alpha
165	albedo_lw_dif = 9999999.9_wp, & !< NAMELIST aldif
166	albedo_lw_dir = 9999999.9_wp, & !< NAMELIST aldir
167	albedo_sw_dif = 9999999.9_wp, & !< NAMELIST asdif
168	albedo_sw_dir = 9999999.9_wp, & !< NAMELIST asdir
169	dt_radiation = 0.0_wp, & !< radiation model timestep
170	emissivity = 0.95_wp, & !< NAMELIST surface emissivity
171	exn, & !< Exner function
172	lon = 0.0_wp, & !< longitude in radians
173	lat = 0.0_wp, & !< latitude in radians
174	decl_1, & !< declination coef. 1
175	decl_2, & !< declination coef. 2
176	decl_3, & !< declination coef. 3
177	time_utc, & !< current time in UTC
178	time_utc_init = 43200.0_wp, & !< UTC time at model start (noon)
179	lambda = 0.0_wp, & !< longitude in degrees
180	net_radiation = 0.0_wp, & !< net radiation at surface
181	time_radiation = 0.0_wp, & !< time since last call of radiation code
182	sky_trans !< sky transmissivity
183
184
185	REAL(wp), DIMENSION(0:0) :: zenith !< solar zenith angle
186
187	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: &
188	alpha, & !< surface broadband albedo (used for clear-sky scheme)
189	rad_net, & !< net radiation at the surface
190	rad_net_av !< average of rad_net
191
192	!
193	!-- Land surface albedos for solar zenith angle of 60Â° after Briegleb (1992)
194	!-- (shortwave, longwave, broadband): sw, lw, bb,
195	REAL(wp), DIMENSION(0:2,1:16), PARAMETER :: albedo_pars = RESHAPE( (/&
196	0.06_wp, 0.06_wp, 0.06_wp, & ! 1
197	0.09_wp, 0.28_wp, 0.19_wp, & ! 2
198	0.11_wp, 0.33_wp, 0.23_wp, & ! 3
199	0.11_wp, 0.33_wp, 0.23_wp, & ! 4
200	0.14_wp, 0.34_wp, 0.25_wp, & ! 5
201	0.06_wp, 0.22_wp, 0.14_wp, & ! 6
202	0.06_wp, 0.27_wp, 0.17_wp, & ! 7
203	0.06_wp, 0.31_wp, 0.19_wp, & ! 8
204	0.06_wp, 0.22_wp, 0.14_wp, & ! 9
205	0.06_wp, 0.28_wp, 0.18_wp, & ! 10
206	0.35_wp, 0.51_wp, 0.43_wp, & ! 11
207	0.24_wp, 0.40_wp, 0.32_wp, & ! 12
208	0.10_wp, 0.27_wp, 0.19_wp, & ! 13
209	0.90_wp, 0.65_wp, 0.77_wp, & ! 14
210	0.90_wp, 0.65_wp, 0.77_wp, & ! 15
211	0.95_wp, 0.70_wp, 0.82_wp & ! 16
212	/), (/ 3, 16 /) )
213
214	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE, TARGET :: &
215	rad_sw_in, & !< incoming shortwave radiation (W/m2)
216	rad_sw_in_av, & !< average of rad_sw_in
217	rad_sw_out, & !< outgoing shortwave radiation (W/m2)
218	rad_sw_out_av, & !< average of rad_sw_out
219	rad_lw_in, & !< incoming longwave radiation (W/m2)
220	rad_lw_in_av, & !< average of rad_lw_in
221	rad_lw_out, & !< outgoing longwave radiation (W/m2)
222	rad_lw_out_av !< average of rad_lw_out
223
224	!
225	!-- Variables and parameters used in RRTMG only
226	#if defined ( __rrtmg )
227	CHARACTER(LEN=12) :: rrtm_input_file = "RAD_SND_DATA" !< name of the NetCDF input file (sounding data)
228
229
230	!
231	!-- Flag parameters for RRTMGS (should not be changed)
232	INTEGER(iwp), PARAMETER :: rrtm_inflglw = 2, & !< flag for lw cloud optical properties (0,1,2)
233	rrtm_iceflglw = 0, & !< flag for lw ice particle specifications (0,1,2,3)
234	rrtm_liqflglw = 1, & !< flag for lw liquid droplet specifications
235	rrtm_inflgsw = 2, & !< flag for sw cloud optical properties (0,1,2)
236	rrtm_iceflgsw = 0, & !< flag for sw ice particle specifications (0,1,2,3)
237	rrtm_liqflgsw = 1 !< flag for sw liquid droplet specifications
238
239	!
240	!-- The following variables should be only changed with care, as this will
241	!-- require further setting of some variables, which is currently not
242	!-- implemented (aerosols, ice phase).
243	INTEGER(iwp) :: nzt_rad, & !< upper vertical limit for radiation calculations
244	rrtm_icld = 0, & !< cloud flag (0: clear sky column, 1: cloudy column)
245	rrtm_iaer = 0, & !< aerosol option flag (0: no aerosol layers, for lw only: 6 (requires setting of rrtm_sw_ecaer), 10: one or more aerosol layers (not implemented)
246	rrtm_idrv = 0 !< longwave upward flux calculation option (0,1)
247
248	LOGICAL :: snd_exists = .FALSE. !< flag parameter to check whether a user-defined input files exists
249
250	REAL(wp), PARAMETER :: mol_weight_air_d_wv = 1.607793_wp !< molecular weight dry air / water vapor
251
252	REAL(wp), DIMENSION(:), ALLOCATABLE :: hyp_snd, & !< hypostatic pressure from sounding data (hPa)
253	q_snd, & !< specific humidity from sounding data (kg/kg) - dummy at the moment
254	rrtm_tsfc, & !< dummy array for storing surface temperature
255	t_snd !< actual temperature from sounding data (hPa)
256
257	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: aldif, & !< longwave diffuse albedo solar angle of 60Â°
258	aldir, & !< longwave direct albedo solar angle of 60Â°
259	asdif, & !< shortwave diffuse albedo solar angle of 60Â°
260	asdir, & !< shortwave direct albedo solar angle of 60Â°
261	rrtm_ccl4vmr, & !< CCL4 volume mixing ratio (g/mol)
262	rrtm_cfc11vmr, & !< CFC11 volume mixing ratio (g/mol)
263	rrtm_cfc12vmr, & !< CFC12 volume mixing ratio (g/mol)
264	rrtm_cfc22vmr, & !< CFC22 volume mixing ratio (g/mol)
265	rrtm_ch4vmr, & !< CH4 volume mixing ratio
266	rrtm_cicewp, & !< in-cloud ice water path (g/mÂ²)
267	rrtm_cldfr, & !< cloud fraction (0,1)
268	rrtm_cliqwp, & !< in-cloud liquid water path (g/mÂ²)
269	rrtm_co2vmr, & !< CO2 volume mixing ratio (g/mol)
270	rrtm_emis, & !< surface emissivity (0-1)
271	rrtm_h2ovmr, & !< H2O volume mixing ratio
272	rrtm_n2ovmr, & !< N2O volume mixing ratio
273	rrtm_o2vmr, & !< O2 volume mixing ratio
274	rrtm_o3vmr, & !< O3 volume mixing ratio
275	rrtm_play, & !< pressure layers (hPa, zu-grid)
276	rrtm_plev, & !< pressure layers (hPa, zw-grid)
277	rrtm_reice, & !< cloud ice effective radius (microns)
278	rrtm_reliq, & !< cloud water drop effective radius (microns)
279	rrtm_tlay, & !< actual temperature (K, zu-grid)
280	rrtm_tlev, & !< actual temperature (K, zw-grid)
281	rrtm_lwdflx, & !< RRTM output of incoming longwave radiation flux (W/m2)
282	rrtm_lwuflx, & !< RRTM output of outgoing longwave radiation flux (W/m2)
283	rrtm_lwhr, & !< RRTM output of longwave radiation heating rate (K/d)
284	rrtm_lwuflxc, & !< RRTM output of incoming clear sky longwave radiation flux (W/m2)
285	rrtm_lwdflxc, & !< RRTM output of outgoing clear sky longwave radiation flux (W/m2)
286	rrtm_lwhrc, & !< RRTM output of incoming longwave clear sky radiation heating rate (K/d)
287	rrtm_swdflx, & !< RRTM output of incoming shortwave radiation flux (W/m2)
288	rrtm_swuflx, & !< RRTM output of outgoing shortwave radiation flux (W/m2)
289	rrtm_swhr, & !< RRTM output of shortwave radiation heating rate (K/d)
290	rrtm_swuflxc, & !< RRTM output of incoming clear sky shortwave radiation flux (W/m2)
291	rrtm_swdflxc, & !< RRTM output of outgoing clear sky shortwave radiation flux (W/m2)
292	rrtm_swhrc !< RRTM output of incoming shortwave clear sky radiation heating rate (K/d)
293
294	!
295	!-- Definition of arrays that are currently not used for calling RRTMG (due to setting of flag parameters)
296	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: rad_lw_cs_in, & !< incoming clear sky longwave radiation (W/m2) (not used)
297	rad_lw_cs_out, & !< outgoing clear sky longwave radiation (W/m2) (not used)
298	rad_lw_cs_hr, & !< longwave clear sky radiation heating rate (K/d) (not used)
299	rad_lw_hr, & !< longwave radiation heating rate (K/d)
300	rad_sw_cs_in, & !< incoming clear sky shortwave radiation (W/m2) (not used)
301	rad_sw_cs_out, & !< outgoing clear sky shortwave radiation (W/m2) (not used)
302	rad_sw_cs_hr, & !< shortwave clear sky radiation heating rate (K/d) (not used)
303	rad_sw_hr, & !< shortwave radiation heating rate (K/d)
304	rrtm_aldif, & !< surface albedo for longwave diffuse radiation
305	rrtm_aldir, & !< surface albedo for longwave direct radiation
306	rrtm_asdif, & !< surface albedo for shortwave diffuse radiation
307	rrtm_asdir, & !< surface albedo for shortwave direct radiation
308	rrtm_lw_tauaer, & !< lw aerosol optical depth
309	rrtm_lw_taucld, & !< lw in-cloud optical depth
310	rrtm_sw_taucld, & !< sw in-cloud optical depth
311	rrtm_sw_ssacld, & !< sw in-cloud single scattering albedo
312	rrtm_sw_asmcld, & !< sw in-cloud asymmetry parameter
313	rrtm_sw_fsfcld, & !< sw in-cloud forward scattering fraction
314	rrtm_sw_tauaer, & !< sw aerosol optical depth
315	rrtm_sw_ssaaer, & !< sw aerosol single scattering albedo
316	rrtm_sw_asmaer, & !< sw aerosol asymmetry parameter
317	rrtm_sw_ecaer !< sw aerosol optical detph at 0.55 microns (rrtm_iaer = 6 only)
318	#endif
319
320	INTERFACE init_radiation
321	MODULE PROCEDURE init_radiation
322	END INTERFACE init_radiation
323
324	INTERFACE radiation_clearsky
325	MODULE PROCEDURE radiation_clearsky
326	END INTERFACE radiation_clearsky
327
328	INTERFACE radiation_rrtmg
329	MODULE PROCEDURE radiation_rrtmg
330	END INTERFACE radiation_rrtmg
331
332	INTERFACE radiation_tendency
333	MODULE PROCEDURE radiation_tendency
334	MODULE PROCEDURE radiation_tendency_ij
335	END INTERFACE radiation_tendency
336
337	SAVE
338
339	PRIVATE
340
341	PUBLIC albedo, albedo_type, albedo_type_name, albedo_lw_dif, albedo_lw_dir,&
342	albedo_sw_dif, albedo_sw_dir, constant_albedo, day_init, dots_rad, &
343	dt_radiation, init_radiation, lambda, lw_radiation, net_radiation, &
344	rad_net, rad_net_av, radiation, radiation_clearsky, &
345	radiation_rrtmg, radiation_scheme, radiation_tendency, rad_lw_in, &
346	rad_lw_in_av, rad_lw_out, rad_lw_out_av, rad_sw_in, rad_sw_in_av, &
347	rad_sw_out, rad_sw_out_av, sigma_sb, sw_radiation, time_radiation, &
348	time_utc_init
349
350	#if defined ( __rrtmg )
351	PUBLIC rrtm_aldif, rrtm_aldir, rrtm_asdif, rrtm_asdir
352	#endif
353
354	CONTAINS
355
356	!------------------------------------------------------------------------------!
357	! Description:
358	! ------------
359	!> Initialization of the radiation model
360	!------------------------------------------------------------------------------!
361	SUBROUTINE init_radiation
362
363	IMPLICIT NONE
364
365	!
366	!-- Allocate array for storing the surface net radiation
367	IF ( .NOT. ALLOCATED ( rad_net ) ) THEN
368	ALLOCATE ( rad_net(nysg:nyng,nxlg:nxrg) )
369	rad_net = 0.0_wp
370	ENDIF
371
372	!
373	!-- Fix net radiation in case of radiation_scheme = 'constant'
374	IF ( radiation_scheme == 'constant' ) THEN
375	rad_net = net_radiation
376	radiation = .FALSE.
377	!
378	!-- Calculate orbital constants
379	ELSE
380	decl_1 = SIN(23.45_wp * pi / 180.0_wp)
381	decl_2 = 2.0_wp * pi / 365.0_wp
382	decl_3 = decl_2 * 81.0_wp
383	lat = phi * pi / 180.0_wp
384	lon = lambda * pi / 180.0_wp
385	ENDIF
386
387
388	IF ( radiation_scheme == 'clear-sky' ) THEN
389
390	ALLOCATE ( alpha(nysg:nyng,nxlg:nxrg) )
391
392	IF ( .NOT. ALLOCATED ( rad_sw_in ) ) THEN
393	ALLOCATE ( rad_sw_in(0:0,nysg:nyng,nxlg:nxrg) )
394	ENDIF
395	IF ( .NOT. ALLOCATED ( rad_sw_out ) ) THEN
396	ALLOCATE ( rad_sw_out(0:0,nysg:nyng,nxlg:nxrg) )
397	ENDIF
398
399	IF ( .NOT. ALLOCATED ( rad_sw_in_av ) ) THEN
400	ALLOCATE ( rad_sw_in_av(0:0,nysg:nyng,nxlg:nxrg) )
401	ENDIF
402	IF ( .NOT. ALLOCATED ( rad_sw_out_av ) ) THEN
403	ALLOCATE ( rad_sw_out_av(0:0,nysg:nyng,nxlg:nxrg) )
404	ENDIF
405
406	IF ( .NOT. ALLOCATED ( rad_lw_in ) ) THEN
407	ALLOCATE ( rad_lw_in(0:0,nysg:nyng,nxlg:nxrg) )
408	ENDIF
409	IF ( .NOT. ALLOCATED ( rad_lw_out ) ) THEN
410	ALLOCATE ( rad_lw_out(0:0,nysg:nyng,nxlg:nxrg) )
411	ENDIF
412
413	IF ( .NOT. ALLOCATED ( rad_lw_in_av ) ) THEN
414	ALLOCATE ( rad_lw_in_av(0:0,nysg:nyng,nxlg:nxrg) )
415	ENDIF
416	IF ( .NOT. ALLOCATED ( rad_lw_out_av ) ) THEN
417	ALLOCATE ( rad_lw_out_av(0:0,nysg:nyng,nxlg:nxrg) )
418	ENDIF
419
420	rad_sw_in = 0.0_wp
421	rad_sw_out = 0.0_wp
422	rad_lw_in = 0.0_wp
423	rad_lw_out = 0.0_wp
424
425	!
426	!-- Overwrite albedo if manually set in parameter file
427	IF ( albedo_type /= 0 .AND. albedo == 9999999.9_wp ) THEN
428	albedo = albedo_pars(2,albedo_type)
429	ENDIF
430
431	alpha = albedo
432
433	!
434	!-- Initialization actions for RRTMG
435	ELSEIF ( radiation_scheme == 'rrtmg' ) THEN
436	#if defined ( __rrtmg )
437	!
438	!-- Allocate albedos
439	ALLOCATE ( rrtm_aldif(0:0,nysg:nyng,nxlg:nxrg) )
440	ALLOCATE ( rrtm_aldir(0:0,nysg:nyng,nxlg:nxrg) )
441	ALLOCATE ( rrtm_asdif(0:0,nysg:nyng,nxlg:nxrg) )
442	ALLOCATE ( rrtm_asdir(0:0,nysg:nyng,nxlg:nxrg) )
443	ALLOCATE ( aldif(nysg:nyng,nxlg:nxrg) )
444	ALLOCATE ( aldir(nysg:nyng,nxlg:nxrg) )
445	ALLOCATE ( asdif(nysg:nyng,nxlg:nxrg) )
446	ALLOCATE ( asdir(nysg:nyng,nxlg:nxrg) )
447
448	IF ( albedo_type /= 0 ) THEN
449	IF ( albedo_lw_dif == 9999999.9_wp ) THEN
450	albedo_lw_dif = albedo_pars(0,albedo_type)
451	albedo_lw_dir = albedo_lw_dif
452	ENDIF
453	IF ( albedo_sw_dif == 9999999.9_wp ) THEN
454	albedo_sw_dif = albedo_pars(1,albedo_type)
455	albedo_sw_dir = albedo_sw_dif
456	ENDIF
457	ENDIF
458
459	aldif(:,:) = albedo_lw_dif
460	aldir(:,:) = albedo_lw_dir
461	asdif(:,:) = albedo_sw_dif
462	asdir(:,:) = albedo_sw_dir
463	!
464	!-- Calculate initial values of current (cosine of) the zenith angle and
465	!-- whether the sun is up
466	CALL calc_zenith
467	!
468	!-- Calculate initial surface albedo
469	IF ( .NOT. constant_albedo ) THEN
470	CALL calc_albedo
471	ELSE
472	rrtm_aldif(0,:,:) = aldif(:,:)
473	rrtm_aldir(0,:,:) = aldir(:,:)
474	rrtm_asdif(0,:,:) = asdif(:,:)
475	rrtm_asdir(0,:,:) = asdir(:,:)
476	ENDIF
477
478	!
479	!-- Allocate surface emissivity
480	ALLOCATE ( rrtm_emis(0:0,1:nbndlw+1) )
481	rrtm_emis = emissivity
482
483	!
484	!-- Allocate 3d arrays of radiative fluxes and heating rates
485	ALLOCATE ( rad_sw_hr(nzb+1:nzt+1,nysg:nyng,nxlg:nxrg) )
486	ALLOCATE ( rad_sw_cs_in(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
487	ALLOCATE ( rad_sw_cs_out(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
488	ALLOCATE ( rad_sw_cs_hr(nzb+1:nzt+1,nysg:nyng,nxlg:nxrg) )
489
490	IF ( .NOT. ALLOCATED ( rad_sw_in ) ) THEN
491	ALLOCATE ( rad_sw_in(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
492	rad_sw_in = 0.0_wp
493
494	ENDIF
495
496	IF ( .NOT. ALLOCATED ( rad_sw_in_av ) ) THEN
497	ALLOCATE ( rad_sw_in_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
498	rad_sw_out = 0.0_wp
499	ENDIF
500
501	IF ( .NOT. ALLOCATED ( rad_sw_out ) ) THEN
502	ALLOCATE ( rad_sw_out(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
503	ENDIF
504
505	IF ( .NOT. ALLOCATED ( rad_sw_out_av ) ) THEN
506	ALLOCATE ( rad_sw_out_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
507	ENDIF
508
509	ALLOCATE ( rad_lw_hr(nzb+1:nzt+1,nysg:nyng,nxlg:nxrg) )
510	ALLOCATE ( rad_lw_cs_in(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
511	ALLOCATE ( rad_lw_cs_out(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
512	ALLOCATE ( rad_lw_cs_hr(nzb+1:nzt+1,nysg:nyng,nxlg:nxrg) )
513
514	IF ( .NOT. ALLOCATED ( rad_lw_in ) ) THEN
515	ALLOCATE ( rad_lw_in(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
516	rad_lw_in = 0.0_wp
517	ENDIF
518
519	IF ( .NOT. ALLOCATED ( rad_lw_in_av ) ) THEN
520	ALLOCATE ( rad_lw_in_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
521	ENDIF
522
523	IF ( .NOT. ALLOCATED ( rad_lw_out ) ) THEN
524	ALLOCATE ( rad_lw_out(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
525	rad_lw_out = 0.0_wp
526	ENDIF
527
528	IF ( .NOT. ALLOCATED ( rad_lw_out_av ) ) THEN
529	ALLOCATE ( rad_lw_out_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
530	ENDIF
531
532	rad_sw_hr = 0.0_wp
533	rad_sw_cs_in = 0.0_wp
534	rad_sw_cs_out = 0.0_wp
535	rad_sw_cs_hr = 0.0_wp
536
537	rad_lw_hr = 0.0_wp
538	rad_lw_cs_in = 0.0_wp
539	rad_lw_cs_out = 0.0_wp
540	rad_lw_cs_hr = 0.0_wp
541
542	!
543	!-- Allocate dummy array for storing surface temperature
544	ALLOCATE ( rrtm_tsfc(1) )
545
546	!
547	!-- Initialize RRTMG
548	IF ( lw_radiation ) CALL rrtmg_lw_ini ( cp )
549	IF ( sw_radiation ) CALL rrtmg_sw_ini ( cp )
550
551	!
552	!-- Set input files for RRTMG
553	INQUIRE(FILE="RAD_SND_DATA", EXIST=snd_exists)
554	IF ( .NOT. snd_exists ) THEN
555	rrtm_input_file = "rrtmg_lw.nc"
556	ENDIF
557
558	!
559	!-- Read vertical layers for RRTMG from sounding data
560	!-- The routine provides nzt_rad, hyp_snd(1:nzt_rad),
561	!-- t_snd(nzt+2:nzt_rad), rrtm_play(1:nzt_rad), rrtm_plev(1_nzt_rad+1),
562	!-- rrtm_tlay(nzt+2:nzt_rad), rrtm_tlev(nzt+2:nzt_rad+1)
563	CALL read_sounding_data
564
565	!
566	!-- Read trace gas profiles from file. This routine provides
567	!-- the rrtm_ arrays (1:nzt_rad+1)
568	CALL read_trace_gas_data
569	#endif
570	ENDIF
571
572	!
573	!-- Perform user actions if required
574	CALL user_init_radiation
575
576
577	!
578	!-- Add timeseries for radiation model
579	dots_rad = dots_num + 1
580	dots_label(dots_num+1) = "rad_net"
581	dots_label(dots_num+2) = "rad_lw_in"
582	dots_label(dots_num+3) = "rad_lw_out"
583	dots_label(dots_num+4) = "rad_sw_in"
584	dots_label(dots_num+5) = "rad_sw_out"
585	dots_unit(dots_num+1:dots_num+5) = "W/m2"
586	dots_num = dots_num + 5
587
588	!
589	!-- Output of albedos is only required for RRTMG
590	IF ( radiation_scheme == 'rrtmg' ) THEN
591	dots_label(dots_num+1) = "rrtm_aldif"
592	dots_label(dots_num+2) = "rrtm_aldir"
593	dots_label(dots_num+3) = "rrtm_asdif"
594	dots_label(dots_num+4) = "rrtm_asdir"
595	dots_unit(dots_num+1:dots_num+4) = ""
596	dots_num = dots_num + 4
597	ENDIF
598
599	!
600	!-- Calculate radiative fluxes at model start
601	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
602	IF ( radiation_scheme == 'clear-sky' ) THEN
603	CALL radiation_clearsky
604	ELSEIF ( radiation_scheme == 'rrtmg' ) THEN
605	CALL radiation_rrtmg
606	ENDIF
607	ENDIF
608
609	RETURN
610
611	END SUBROUTINE init_radiation
612
613
614	!------------------------------------------------------------------------------!
615	! Description:
616	! ------------
617	!> A simple clear sky radiation model
618	!------------------------------------------------------------------------------!
619	SUBROUTINE radiation_clearsky
620
621	USE indices, &
622	ONLY: nbgp
623
624	IMPLICIT NONE
625
626	INTEGER(iwp) :: i, j, k
627
628	!
629	!-- Calculate current zenith angle
630	CALL calc_zenith
631
632	!
633	!-- Calculate sky transmissivity
634	sky_trans = 0.6_wp + 0.2_wp * zenith(0)
635
636	!
637	!-- Calculate value of the Exner function
638	exn = (surface_pressure / 1000.0_wp )**0.286_wp
639	!
640	!-- Calculate radiation fluxes and net radiation (rad_net) for each grid
641	!-- point
642	DO i = nxl, nxr
643	DO j = nys, nyn
644	k = nzb_s_inner(j,i)
645	rad_sw_in(0,j,i) = solar_constant * sky_trans * zenith(0)
646	rad_sw_out(0,j,i) = alpha(j,i) * rad_sw_in(0,j,i)
647	rad_lw_out(0,j,i) = sigma_sb * (pt(k,j,i) * exn)**4
648	rad_lw_in(0,j,i) = 0.8_wp * sigma_sb * (pt(k+1,j,i) * exn)**4
649	rad_net(j,i) = rad_sw_in(0,j,i) - rad_sw_out(0,j,i) &
650	+ rad_lw_in(0,j,i) - rad_lw_out(0,j,i)
651
652	ENDDO
653	ENDDO
654
655	CALL exchange_horiz_2d( rad_lw_in, nbgp )
656	CALL exchange_horiz_2d( rad_lw_out, nbgp )
657	CALL exchange_horiz_2d( rad_sw_in, nbgp )
658	CALL exchange_horiz_2d( rad_sw_out, nbgp )
659	CALL exchange_horiz_2d( rad_net, nbgp )
660
661	RETURN
662
663	END SUBROUTINE radiation_clearsky
664
665
666	!------------------------------------------------------------------------------!
667	! Description:
668	! ------------
669	!> Implementation of the RRTMG radiation_scheme
670	!------------------------------------------------------------------------------!
671	SUBROUTINE radiation_rrtmg
672
673	USE indices, &
674	ONLY: nbgp
675
676	USE particle_attributes, &
677	ONLY: grid_particles, number_of_particles, particles, &
678	particle_advection_start, prt_count
679
680	IMPLICIT NONE
681
682	#if defined ( __rrtmg )
683
684	INTEGER(iwp) :: i, j, k, n !<
685
686	REAL(wp) :: s_r2 !< weighted sum over all droplets with r^2
687	REAL(wp) :: s_r3 !< weighted sum over all droplets with r^3
688
689	!
690	!-- Calculate current (cosine of) zenith angle and whether the sun is up
691	CALL calc_zenith
692	!
693	!-- Calculate surface albedo
694	IF ( .NOT. constant_albedo ) THEN
695	CALL calc_albedo
696	ENDIF
697
698	!
699	!-- Prepare input data for RRTMG
700
701	!
702	!-- In case of large scale forcing with surface data, calculate new pressure
703	!-- profile. nzt_rad might be modified by these calls and all required arrays
704	!-- will then be re-allocated
705	IF ( large_scale_forcing .AND. lsf_surf ) THEN
706	CALL read_sounding_data
707	CALL read_trace_gas_data
708	ENDIF
709	!
710	!-- Loop over all grid points
711	DO i = nxl, nxr
712	DO j = nys, nyn
713
714	!
715	!-- Prepare profiles of temperature and H2O volume mixing ratio
716	rrtm_tlev(0,nzb+1) = pt(nzb,j,i)
717
718	DO k = nzb+1, nzt+1
719	rrtm_tlay(0,k) = pt(k,j,i) * ( (hyp(k) ) / 100000.0_wp &
720	)*0.286_wp + ( l_v / cp ) ql(k,j,i)
721	rrtm_h2ovmr(0,k) = mol_weight_air_d_wv * (q(k,j,i) - ql(k,j,i))
722
723	ENDDO
724
725	!
726	!-- Avoid temperature/humidity jumps at the top of the LES domain by
727	!-- linear interpolation from nzt+2 to nzt+7
728	DO k = nzt+2, nzt+7
729	rrtm_tlay(0,k) = rrtm_tlay(0,nzt+1) &
730	+ ( rrtm_tlay(0,nzt+8) - rrtm_tlay(0,nzt+1) ) &
731	/ ( rrtm_play(0,nzt+8) - rrtm_play(0,nzt+1) ) &
732	* ( rrtm_play(0,k) - rrtm_play(0,nzt+1) )
733
734	rrtm_h2ovmr(0,k) = rrtm_h2ovmr(0,nzt+1) &
735	+ ( rrtm_h2ovmr(0,nzt+8) - rrtm_h2ovmr(0,nzt+1) )&
736	/ ( rrtm_play(0,nzt+8) - rrtm_play(0,nzt+1) )&
737	* ( rrtm_play(0,k) - rrtm_play(0,nzt+1) )
738
739	ENDDO
740
741	!-- Linear interpolate to zw grid
742	DO k = nzb+2, nzt+8
743	rrtm_tlev(0,k) = rrtm_tlay(0,k-1) + (rrtm_tlay(0,k) - &
744	rrtm_tlay(0,k-1)) &
745	/ ( rrtm_play(0,k) - rrtm_play(0,k-1) ) &
746	* ( rrtm_plev(0,k) - rrtm_play(0,k-1) )
747	ENDDO
748
749
750	!
751	!-- Calculate liquid water path and cloud fraction for each column.
752	!-- Note that LWP is required in g/mÂ² instead of kg/kg m.
753	rrtm_cldfr = 0.0_wp
754	rrtm_reliq = 0.0_wp
755	rrtm_cliqwp = 0.0_wp
756
757	DO k = nzb+1, nzt+1
758	rrtm_cliqwp(0,k) = ql(k,j,i) * 1000.0_wp * &
759	(rrtm_plev(0,k) - rrtm_plev(0,k+1)) * 100.0_wp / g
760
761	IF ( rrtm_cliqwp(0,k) .GT. 0 ) THEN
762	rrtm_cldfr(0,k) = 1.0_wp
763	rrtm_icld = 1
764
765	!
766	!-- Calculate cloud droplet effective radius
767	IF ( cloud_physics ) THEN
768	rrtm_reliq(0,k) = 1.0E6_wp * ( 3.0_wp * ql(k,j,i) &
769	/ ( 4.0_wp * pi * nc_const * rho_l ) &
770	)**0.33333333333333_wp &
771	* EXP( LOG( sigma_gc )**2 )
772
773	ELSEIF ( cloud_droplets ) THEN
774	number_of_particles = prt_count(k,j,i)
775
776	IF (number_of_particles <= 0) CYCLE
777	particles => grid_particles(k,j,i)%particles(1:number_of_particles)
778	s_r2 = 0.0_wp
779	s_r3 = 0.0_wp
780
781	DO n = 1, number_of_particles
782	IF ( particles(n)%particle_mask ) THEN
783	s_r2 = s_r2 + particles(n)%radius*2 &
784	particles(n)%weight_factor
785	s_r3 = s_r3 + particles(n)%radius*3 &
786	particles(n)%weight_factor
787	ENDIF
788	ENDDO
789
790	IF ( s_r2 > 0.0_wp ) rrtm_reliq(0,k) = s_r3 / s_r2
791
792	ENDIF
793
794	!
795	!-- Limit effective radius
796	IF ( rrtm_reliq(0,k) .GT. 0.0_wp ) THEN
797	rrtm_reliq(0,k) = MAX(rrtm_reliq(0,k),2.5_wp)
798	rrtm_reliq(0,k) = MIN(rrtm_reliq(0,k),60.0_wp)
799	ENDIF
800	ELSE
801	rrtm_icld = 0
802	ENDIF
803	ENDDO
804
805	!
806	!-- Set surface temperature
807	rrtm_tsfc = pt(nzb,j,i) * (surface_pressure / 1000.0_wp )**0.286_wp
808
809	IF ( lw_radiation ) THEN
810	CALL rrtmg_lw( 1, nzt_rad , rrtm_icld , rrtm_idrv ,&
811	rrtm_play , rrtm_plev , rrtm_tlay , rrtm_tlev ,&
812	rrtm_tsfc , rrtm_h2ovmr , rrtm_o3vmr , rrtm_co2vmr ,&
813	rrtm_ch4vmr , rrtm_n2ovmr , rrtm_o2vmr , rrtm_cfc11vmr ,&
814	rrtm_cfc12vmr , rrtm_cfc22vmr, rrtm_ccl4vmr , rrtm_emis ,&
815	rrtm_inflglw , rrtm_iceflglw, rrtm_liqflglw, rrtm_cldfr ,&
816	rrtm_lw_taucld , rrtm_cicewp , rrtm_cliqwp , rrtm_reice ,&
817	rrtm_reliq , rrtm_lw_tauaer, &
818	rrtm_lwuflx , rrtm_lwdflx , rrtm_lwhr , &
819	rrtm_lwuflxc , rrtm_lwdflxc , rrtm_lwhrc )
820
821	DO k = nzb, nzt+1
822	rad_lw_in(k,j,i) = rrtm_lwdflx(0,k)
823	rad_lw_out(k,j,i) = rrtm_lwuflx(0,k)
824	ENDDO
825
826
827	ENDIF
828
829	IF ( sw_radiation .AND. sun_up ) THEN
830	CALL rrtmg_sw( 1, nzt_rad , rrtm_icld , rrtm_iaer ,&
831	rrtm_play , rrtm_plev , rrtm_tlay , rrtm_tlev ,&
832	rrtm_tsfc , rrtm_h2ovmr , rrtm_o3vmr , rrtm_co2vmr ,&
833	rrtm_ch4vmr , rrtm_n2ovmr , rrtm_o2vmr , rrtm_asdir(:,j,i),&
834	rrtm_asdif(:,j,i), rrtm_aldir(:,j,i), rrtm_aldif(:,j,i), zenith,&
835	0.0_wp , day , solar_constant, rrtm_inflgsw,&
836	rrtm_iceflgsw , rrtm_liqflgsw, rrtm_cldfr , rrtm_sw_taucld ,&
837	rrtm_sw_ssacld , rrtm_sw_asmcld, rrtm_sw_fsfcld, rrtm_cicewp ,&
838	rrtm_cliqwp , rrtm_reice , rrtm_reliq , rrtm_sw_tauaer ,&
839	rrtm_sw_ssaaer , rrtm_sw_asmaer , rrtm_sw_ecaer , &
840	rrtm_swuflx , rrtm_swdflx , rrtm_swhr , &
841	rrtm_swuflxc , rrtm_swdflxc , rrtm_swhrc )
842
843	DO k = nzb, nzt+1
844	rad_sw_in(k,j,i) = rrtm_swdflx(0,k)
845	rad_sw_out(k,j,i) = rrtm_swuflx(0,k)
846	ENDDO
847	ENDIF
848
849	!
850	!-- Calculate surface net radiation
851	rad_net(j,i) = rad_sw_in(nzb,j,i) - rad_sw_out(nzb,j,i) &
852	+ rad_lw_in(nzb,j,i) - rad_lw_out(nzb,j,i)
853
854	ENDDO
855	ENDDO
856
857	CALL exchange_horiz( rad_lw_in, nbgp )
858	CALL exchange_horiz( rad_lw_out, nbgp )
859	CALL exchange_horiz( rad_sw_in, nbgp )
860	CALL exchange_horiz( rad_sw_out, nbgp )
861	CALL exchange_horiz_2d( rad_net, nbgp )
862	#endif
863
864	END SUBROUTINE radiation_rrtmg
865
866
867	!------------------------------------------------------------------------------!
868	! Description:
869	! ------------
870	!> Calculate the cosine of the zenith angle (variable is called zenith)
871	!------------------------------------------------------------------------------!
872	SUBROUTINE calc_zenith
873
874	IMPLICIT NONE
875
876	REAL(wp) :: declination, & !< solar declination angle
877	hour_angle !< solar hour angle
878	!
879	!-- Calculate current day and time based on the initial values and simulation
880	!-- time
881	day = day_init + INT(FLOOR( (time_utc_init + time_since_reference_point) &
882	/ 86400.0_wp ), KIND=iwp)
883	time_utc = MOD((time_utc_init + time_since_reference_point), 86400.0_wp)
884
885
886	!
887	!-- Calculate solar declination and hour angle
888	declination = ASIN( decl_1 * SIN(decl_2 * REAL(day, KIND=wp) - decl_3) )
889	hour_angle = 2.0_wp * pi * (time_utc / 86400.0_wp) + lon - pi
890
891	!
892	!-- Calculate zenith angle
893	zenith(0) = SIN(lat) * SIN(declination) + COS(lat) * COS(declination) &
894	* COS(hour_angle)
895	zenith(0) = MAX(0.0_wp,zenith(0))
896
897	!
898	!-- Check if the sun is up (otheriwse shortwave calculations can be skipped)
899	IF ( zenith(0) .GT. 0.0_wp ) THEN
900	sun_up = .TRUE.
901	ELSE
902	sun_up = .FALSE.
903	END IF
904
905	END SUBROUTINE calc_zenith
906
907	#if defined ( __rrtmg ) && defined ( __netcdf )
908	!------------------------------------------------------------------------------!
909	! Description:
910	! ------------
911	!> Calculates surface albedo components based on Briegleb (1992) and
912	!> Briegleb et al. (1986)
913	!------------------------------------------------------------------------------!
914	SUBROUTINE calc_albedo
915
916	IMPLICIT NONE
917
918	IF ( sun_up ) THEN
919	!
920	!-- Ocean
921	IF ( albedo_type == 1 ) THEN
922	rrtm_aldir(0,:,:) = 0.026_wp / ( zenith(0)**1.7_wp + 0.065_wp ) &
923	+ 0.15_wp * ( zenith(0) - 0.1_wp ) &
924	* ( zenith(0) - 0.5_wp ) &
925	* ( zenith(0) - 1.0_wp )
926	rrtm_asdir(0,:,:) = rrtm_aldir(0,:,:)
927	!
928	!-- Snow
929	ELSEIF ( albedo_type == 16 ) THEN
930	IF ( zenith(0) < 0.5_wp ) THEN
931	rrtm_aldir(0,:,:) = 0.5_wp * (1.0_wp - aldif) &
932	* ( 3.0_wp / (1.0_wp + 4.0_wp &
933	* zenith(0))) - 1.0_wp
934	rrtm_asdir(0,:,:) = 0.5_wp * (1.0_wp - asdif) &
935	* ( 3.0_wp / (1.0_wp + 4.0_wp &
936	* zenith(0))) - 1.0_wp
937
938	rrtm_aldir(0,:,:) = MIN(0.98_wp, rrtm_aldir(0,:,:))
939	rrtm_asdir(0,:,:) = MIN(0.98_wp, rrtm_asdir(0,:,:))
940	ELSE
941	rrtm_aldir(0,:,:) = aldif
942	rrtm_asdir(0,:,:) = asdif
943	ENDIF
944	!
945	!-- Sea ice
946	ELSEIF ( albedo_type == 15 ) THEN
947	rrtm_aldir(0,:,:) = aldif
948	rrtm_asdir(0,:,:) = asdif
949	!
950	!-- Land surfaces
951	ELSE
952	SELECT CASE ( albedo_type )
953
954	!
955	!-- Surface types with strong zenith dependence
956	CASE ( 1, 2, 3, 4, 11, 12, 13 )
957	rrtm_aldir(0,:,:) = aldif * 1.4_wp / &
958	(1.0_wp + 0.8_wp * zenith(0))
959	rrtm_asdir(0,:,:) = asdif * 1.4_wp / &
960	(1.0_wp + 0.8_wp * zenith(0))
961	!
962	!-- Surface types with weak zenith dependence
963	CASE ( 5, 6, 7, 8, 9, 10, 14 )
964	rrtm_aldir(0,:,:) = aldif * 1.1_wp / &
965	(1.0_wp + 0.2_wp * zenith(0))
966	rrtm_asdir(0,:,:) = asdif * 1.1_wp / &
967	(1.0_wp + 0.2_wp * zenith(0))
968
969	CASE DEFAULT
970
971	END SELECT
972	ENDIF
973	!
974	!-- Diffusive albedo is taken from Table 2
975	rrtm_aldif(0,:,:) = aldif
976	rrtm_asdif(0,:,:) = asdif
977
978	ELSE
979
980	rrtm_aldir(0,:,:) = 0.0_wp
981	rrtm_asdir(0,:,:) = 0.0_wp
982	rrtm_aldif(0,:,:) = 0.0_wp
983	rrtm_asdif(0,:,:) = 0.0_wp
984	ENDIF
985	END SUBROUTINE calc_albedo
986
987	!------------------------------------------------------------------------------!
988	! Description:
989	! ------------
990	!> Read sounding data (pressure and temperature) from RADIATION_DATA.
991	!------------------------------------------------------------------------------!
992	SUBROUTINE read_sounding_data
993
994	USE netcdf_control
995
996	IMPLICIT NONE
997
998	INTEGER(iwp) :: id, id_dim_zrad, id_var, k, nz_snd, nz_snd_start, nz_snd_end
999
1000	REAL(wp) :: t_surface
1001
1002	REAL(wp), DIMENSION(:), ALLOCATABLE :: hyp_snd_tmp, t_snd_tmp
1003
1004	!
1005	!-- In case of updates, deallocate arrays first (sufficient to check one
1006	!-- array as the others are automatically allocated). This is required
1007	!-- because nzt_rad might change during the update
1008	IF ( ALLOCATED ( hyp_snd ) ) THEN
1009	DEALLOCATE( hyp_snd )
1010	DEALLOCATE( t_snd )
1011	DEALLOCATE( q_snd )
1012	DEALLOCATE ( rrtm_play )
1013	DEALLOCATE ( rrtm_plev )
1014	DEALLOCATE ( rrtm_tlay )
1015	DEALLOCATE ( rrtm_tlev )
1016	DEALLOCATE ( rrtm_h2ovmr )
1017	DEALLOCATE ( rrtm_cicewp )
1018	DEALLOCATE ( rrtm_cldfr )
1019	DEALLOCATE ( rrtm_cliqwp )
1020	DEALLOCATE ( rrtm_reice )
1021	DEALLOCATE ( rrtm_reliq )
1022	DEALLOCATE ( rrtm_lw_taucld )
1023	DEALLOCATE ( rrtm_lw_tauaer )
1024	DEALLOCATE ( rrtm_lwdflx )
1025	DEALLOCATE ( rrtm_lwuflx )
1026	DEALLOCATE ( rrtm_lwhr )
1027	DEALLOCATE ( rrtm_lwuflxc )
1028	DEALLOCATE ( rrtm_lwdflxc )
1029	DEALLOCATE ( rrtm_lwhrc )
1030	DEALLOCATE ( rrtm_sw_taucld )
1031	DEALLOCATE ( rrtm_sw_ssacld )
1032	DEALLOCATE ( rrtm_sw_asmcld )
1033	DEALLOCATE ( rrtm_sw_fsfcld )
1034	DEALLOCATE ( rrtm_sw_tauaer )
1035	DEALLOCATE ( rrtm_sw_ssaaer )
1036	DEALLOCATE ( rrtm_sw_asmaer )
1037	DEALLOCATE ( rrtm_sw_ecaer )
1038	DEALLOCATE ( rrtm_swdflx )
1039	DEALLOCATE ( rrtm_swuflx )
1040	DEALLOCATE ( rrtm_swhr )
1041	DEALLOCATE ( rrtm_swuflxc )
1042	DEALLOCATE ( rrtm_swdflxc )
1043	DEALLOCATE ( rrtm_swhrc )
1044	ENDIF
1045
1046	!
1047	!-- Open file for reading
1048	nc_stat = NF90_OPEN( rrtm_input_file, NF90_NOWRITE, id )
1049	CALL handle_netcdf_error( 'netcdf', 549 )
1050
1051	!
1052	!-- Inquire dimension of z axis and save in nz_snd
1053	nc_stat = NF90_INQ_DIMID( id, "Pressure", id_dim_zrad )
1054	nc_stat = NF90_INQUIRE_DIMENSION( id, id_dim_zrad, len = nz_snd )
1055	CALL handle_netcdf_error( 'netcdf', 551 )
1056
1057	!
1058	! !-- Allocate temporary array for storing pressure data
1059	ALLOCATE( hyp_snd_tmp(nzb+1:nz_snd) )
1060	hyp_snd_tmp = 0.0_wp
1061
1062
1063	!-- Read pressure from file
1064	nc_stat = NF90_INQ_VARID( id, "Pressure", id_var )
1065	nc_stat = NF90_GET_VAR( id, id_var, hyp_snd_tmp(:), start = (/1/), &
1066	count = (/nz_snd/) )
1067	CALL handle_netcdf_error( 'netcdf', 552 )
1068
1069	!
1070	!-- Allocate temporary array for storing temperature data
1071	ALLOCATE( t_snd_tmp(nzb+1:nz_snd) )
1072	t_snd_tmp = 0.0_wp
1073
1074	!
1075	!-- Read temperature from file
1076	nc_stat = NF90_INQ_VARID( id, "ReferenceTemperature", id_var )
1077	nc_stat = NF90_GET_VAR( id, id_var, t_snd_tmp(:), start = (/1/), &
1078	count = (/nz_snd/) )
1079	CALL handle_netcdf_error( 'netcdf', 553 )
1080
1081	!
1082	!-- Calculate start of sounding data
1083	nz_snd_start = nz_snd + 1
1084	nz_snd_end = nz_snd_end
1085
1086	!
1087	!-- Start filling vertical dimension at 10hPa above the model domain (hyp is
1088	!-- in Pa, hyp_snd in hPa).
1089	DO k = 1, nz_snd
1090	IF ( hyp_snd_tmp(k) .LT. (hyp(nzt+1) - 1000.0_wp) * 0.01_wp ) THEN
1091	nz_snd_start = k
1092	EXIT
1093	END IF
1094	END DO
1095
1096	IF ( nz_snd_start .LE. nz_snd ) THEN
1097	nz_snd_end = nz_snd - 1
1098	END IF
1099
1100
1101	!
1102	!-- Calculate of total grid points for RRTMG calculations
1103	nzt_rad = nzt + nz_snd_end - nz_snd_start + 2
1104
1105	!
1106	!-- Save data above LES domain in hyp_snd, t_snd and q_snd
1107	!-- Note: q_snd_tmp is not calculated at the moment (dry residual atmosphere)
1108	ALLOCATE( hyp_snd(nzb+1:nzt_rad) )
1109	ALLOCATE( t_snd(nzb+1:nzt_rad) )
1110	ALLOCATE( q_snd(nzb+1:nzt_rad) )
1111	hyp_snd = 0.0_wp
1112	t_snd = 0.0_wp
1113	q_snd = 0.0_wp
1114
1115	hyp_snd(nzt+2:nzt_rad) = hyp_snd_tmp(nz_snd_start:nz_snd_end)
1116	t_snd(nzt+2:nzt_rad) = t_snd_tmp(nz_snd_start:nz_snd_end)
1117
1118	DEALLOCATE ( hyp_snd_tmp )
1119	DEALLOCATE ( t_snd_tmp )
1120
1121	nc_stat = NF90_CLOSE( id )
1122
1123	!
1124	!-- Calculate pressure levels on zu and zw grid. Sounding data is added at
1125	!-- top of the LES domain. This routine does not consider horizontal or
1126	!-- vertical variability of pressure and temperature
1127	ALLOCATE ( rrtm_play(0:0,nzb+1:nzt_rad+1) )
1128	ALLOCATE ( rrtm_plev(0:0,nzb+1:nzt_rad+2) )
1129
1130	t_surface = pt_surface * (surface_pressure / 1000.0_wp )**0.286_wp
1131	DO k = nzb+1, nzt+1
1132	rrtm_play(0,k) = hyp(k) * 0.01_wp
1133	rrtm_plev(0,k) = surface_pressure * ( (t_surface - g/cp * zw(k-1)) / &
1134	t_surface )**(1.0_wp/0.286_wp)
1135	ENDDO
1136
1137	DO k = nzt+2, nzt_rad
1138	rrtm_play(0,k) = hyp_snd(k)
1139	rrtm_plev(0,k) = 0.5_wp * ( rrtm_play(0,k) + rrtm_play(0,k-1) )
1140	ENDDO
1141	rrtm_plev(0,nzt_rad+1) = MAX( 0.5 * hyp_snd(nzt_rad), &
1142	1.5 * hyp_snd(nzt_rad) &
1143	- 0.5 * hyp_snd(nzt_rad-1) )
1144	rrtm_plev(0,nzt_rad+2) = MIN( 1.0E-4_wp, &
1145	0.25_wp * rrtm_plev(0,nzt_rad+1) )
1146
1147	rrtm_play(0,nzt_rad+1) = 0.5 * rrtm_plev(0,nzt_rad+1)
1148
1149	!
1150	!-- Calculate temperature/humidity levels at top of the LES domain.
1151	!-- Currently, the temperature is taken from sounding data (might lead to a
1152	!-- temperature jump at interface. To do: Humidity is currently not
1153	!-- calculated above the LES domain.
1154	ALLOCATE ( rrtm_tlay(0:0,nzb+1:nzt_rad+1) )
1155	ALLOCATE ( rrtm_tlev(0:0,nzb+1:nzt_rad+2) )
1156	ALLOCATE ( rrtm_h2ovmr(0:0,nzb+1:nzt_rad+1) )
1157
1158	DO k = nzt+8, nzt_rad
1159	rrtm_tlay(0,k) = t_snd(k)
1160	rrtm_h2ovmr(0,k) = q_snd(k)
1161	ENDDO
1162	rrtm_tlay(0,nzt_rad+1) = 2.0_wp * rrtm_tlay(0,nzt_rad) &
1163	- rrtm_tlay(0,nzt_rad-1)
1164	DO k = nzt+9, nzt_rad+1
1165	rrtm_tlev(0,k) = rrtm_tlay(0,k-1) + (rrtm_tlay(0,k) &
1166	- rrtm_tlay(0,k-1)) &
1167	/ ( rrtm_play(0,k) - rrtm_play(0,k-1) ) &
1168	* ( rrtm_plev(0,k) - rrtm_play(0,k-1) )
1169	ENDDO
1170	rrtm_h2ovmr(0,nzt_rad+1) = rrtm_h2ovmr(0,nzt_rad)
1171
1172	rrtm_tlev(0,nzt_rad+2) = 2.0_wp * rrtm_tlay(0,nzt_rad+1) &
1173	- rrtm_tlev(0,nzt_rad)
1174	!
1175	!-- Allocate remaining RRTMG arrays
1176	ALLOCATE ( rrtm_cicewp(0:0,nzb+1:nzt_rad+1) )
1177	ALLOCATE ( rrtm_cldfr(0:0,nzb+1:nzt_rad+1) )
1178	ALLOCATE ( rrtm_cliqwp(0:0,nzb+1:nzt_rad+1) )
1179	ALLOCATE ( rrtm_reice(0:0,nzb+1:nzt_rad+1) )
1180	ALLOCATE ( rrtm_reliq(0:0,nzb+1:nzt_rad+1) )
1181	ALLOCATE ( rrtm_lw_taucld(1:nbndlw+1,0:0,nzb+1:nzt_rad+1) )
1182	ALLOCATE ( rrtm_lw_tauaer(0:0,nzb+1:nzt_rad+1,1:nbndlw+1) )
1183	ALLOCATE ( rrtm_sw_taucld(1:nbndsw+1,0:0,nzb+1:nzt_rad+1) )
1184	ALLOCATE ( rrtm_sw_ssacld(1:nbndsw+1,0:0,nzb+1:nzt_rad+1) )
1185	ALLOCATE ( rrtm_sw_asmcld(1:nbndsw+1,0:0,nzb+1:nzt_rad+1) )
1186	ALLOCATE ( rrtm_sw_fsfcld(1:nbndsw+1,0:0,nzb+1:nzt_rad+1) )
1187	ALLOCATE ( rrtm_sw_tauaer(0:0,nzb+1:nzt_rad+1,1:nbndsw+1) )
1188	ALLOCATE ( rrtm_sw_ssaaer(0:0,nzb+1:nzt_rad+1,1:nbndsw+1) )
1189	ALLOCATE ( rrtm_sw_asmaer(0:0,nzb+1:nzt_rad+1,1:nbndsw+1) )
1190	ALLOCATE ( rrtm_sw_ecaer(0:0,nzb+1:nzt_rad+1,1:naerec+1) )
1191
1192	!
1193	!-- The ice phase is currently not considered in PALM
1194	rrtm_cicewp = 0.0_wp
1195	rrtm_reice = 0.0_wp
1196
1197	!
1198	!-- Set other parameters (move to NAMELIST parameters in the future)
1199	rrtm_lw_tauaer = 0.0_wp
1200	rrtm_lw_taucld = 0.0_wp
1201	rrtm_sw_taucld = 0.0_wp
1202	rrtm_sw_ssacld = 0.0_wp
1203	rrtm_sw_asmcld = 0.0_wp
1204	rrtm_sw_fsfcld = 0.0_wp
1205	rrtm_sw_tauaer = 0.0_wp
1206	rrtm_sw_ssaaer = 0.0_wp
1207	rrtm_sw_asmaer = 0.0_wp
1208	rrtm_sw_ecaer = 0.0_wp
1209
1210
1211	ALLOCATE ( rrtm_swdflx(0:0,nzb:nzt_rad+1) )
1212	ALLOCATE ( rrtm_swuflx(0:0,nzb:nzt_rad+1) )
1213	ALLOCATE ( rrtm_swhr(0:0,nzb+1:nzt_rad+1) )
1214	ALLOCATE ( rrtm_swuflxc(0:0,nzb:nzt_rad+1) )
1215	ALLOCATE ( rrtm_swdflxc(0:0,nzb:nzt_rad+1) )
1216	ALLOCATE ( rrtm_swhrc(0:0,nzb+1:nzt_rad+1) )
1217
1218	rrtm_swdflx = 0.0_wp
1219	rrtm_swuflx = 0.0_wp
1220	rrtm_swhr = 0.0_wp
1221	rrtm_swuflxc = 0.0_wp
1222	rrtm_swdflxc = 0.0_wp
1223	rrtm_swhrc = 0.0_wp
1224
1225	ALLOCATE ( rrtm_lwdflx(0:0,nzb:nzt_rad+1) )
1226	ALLOCATE ( rrtm_lwuflx(0:0,nzb:nzt_rad+1) )
1227	ALLOCATE ( rrtm_lwhr(0:0,nzb+1:nzt_rad+1) )
1228	ALLOCATE ( rrtm_lwuflxc(0:0,nzb:nzt_rad+1) )
1229	ALLOCATE ( rrtm_lwdflxc(0:0,nzb:nzt_rad+1) )
1230	ALLOCATE ( rrtm_lwhrc(0:0,nzb+1:nzt_rad+1) )
1231
1232	rrtm_lwdflx = 0.0_wp
1233	rrtm_lwuflx = 0.0_wp
1234	rrtm_lwhr = 0.0_wp
1235	rrtm_lwuflxc = 0.0_wp
1236	rrtm_lwdflxc = 0.0_wp
1237	rrtm_lwhrc = 0.0_wp
1238
1239
1240	END SUBROUTINE read_sounding_data
1241
1242
1243	!------------------------------------------------------------------------------!
1244	! Description:
1245	! ------------
1246	!> Read trace gas data from file
1247	!------------------------------------------------------------------------------!
1248	SUBROUTINE read_trace_gas_data
1249
1250	USE netcdf_control
1251	USE rrsw_ncpar
1252
1253	IMPLICIT NONE
1254
1255	INTEGER(iwp), PARAMETER :: num_trace_gases = 9 !< number of trace gases
1256
1257	CHARACTER(LEN=5), DIMENSION(num_trace_gases), PARAMETER :: &
1258	trace_names = (/'O3 ', 'CO2 ', 'CH4 ', 'N2O ', 'O2 ', &
1259	'CFC11', 'CFC12', 'CFC22', 'CCL4 '/)
1260
1261	INTEGER(iwp) :: id, k, m, n, nabs, np, id_abs, id_dim, id_var
1262
1263	REAL(wp) :: p_mls_l, p_mls_u, p_wgt_l, p_wgt_u, p_mls_m
1264
1265
1266	REAL(wp), DIMENSION(:), ALLOCATABLE :: p_mls, & !< pressure levels for the absorbers
1267	rrtm_play_tmp, & !< temporary array for pressure zu-levels
1268	rrtm_plev_tmp, & !< temporary array for pressure zw-levels
1269	trace_path_tmp !< temporary array for storing trace gas path data
1270
1271	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: trace_mls, & !< array for storing the absorber amounts
1272	trace_mls_path, & !< array for storing trace gas path data
1273	trace_mls_tmp !< temporary array for storing trace gas data
1274
1275
1276	!
1277	!-- In case of updates, deallocate arrays first (sufficient to check one
1278	!-- array as the others are automatically allocated)
1279	IF ( ALLOCATED ( rrtm_o3vmr ) ) THEN
1280	DEALLOCATE ( rrtm_o3vmr )
1281	DEALLOCATE ( rrtm_co2vmr )
1282	DEALLOCATE ( rrtm_ch4vmr )
1283	DEALLOCATE ( rrtm_n2ovmr )
1284	DEALLOCATE ( rrtm_o2vmr )
1285	DEALLOCATE ( rrtm_cfc11vmr )
1286	DEALLOCATE ( rrtm_cfc12vmr )
1287	DEALLOCATE ( rrtm_cfc22vmr )
1288	DEALLOCATE ( rrtm_ccl4vmr )
1289	ENDIF
1290
1291	!
1292	!-- Allocate trace gas profiles
1293	ALLOCATE ( rrtm_o3vmr(0:0,1:nzt_rad+1) )
1294	ALLOCATE ( rrtm_co2vmr(0:0,1:nzt_rad+1) )
1295	ALLOCATE ( rrtm_ch4vmr(0:0,1:nzt_rad+1) )
1296	ALLOCATE ( rrtm_n2ovmr(0:0,1:nzt_rad+1) )
1297	ALLOCATE ( rrtm_o2vmr(0:0,1:nzt_rad+1) )
1298	ALLOCATE ( rrtm_cfc11vmr(0:0,1:nzt_rad+1) )
1299	ALLOCATE ( rrtm_cfc12vmr(0:0,1:nzt_rad+1) )
1300	ALLOCATE ( rrtm_cfc22vmr(0:0,1:nzt_rad+1) )
1301	ALLOCATE ( rrtm_ccl4vmr(0:0,1:nzt_rad+1) )
1302
1303	!
1304	!-- Open file for reading
1305	nc_stat = NF90_OPEN( rrtm_input_file, NF90_NOWRITE, id )
1306	CALL handle_netcdf_error( 'netcdf', 549 )
1307	!
1308	!-- Inquire dimension ids and dimensions
1309	nc_stat = NF90_INQ_DIMID( id, "Pressure", id_dim )
1310	CALL handle_netcdf_error( 'netcdf', 550 )
1311	nc_stat = NF90_INQUIRE_DIMENSION( id, id_dim, len = np)
1312	CALL handle_netcdf_error( 'netcdf', 550 )
1313
1314	nc_stat = NF90_INQ_DIMID( id, "Absorber", id_dim )
1315	CALL handle_netcdf_error( 'netcdf', 550 )
1316	nc_stat = NF90_INQUIRE_DIMENSION( id, id_dim, len = nabs )
1317	CALL handle_netcdf_error( 'netcdf', 550 )
1318
1319
1320	!
1321	!-- Allocate pressure, and trace gas arrays
1322	ALLOCATE( p_mls(1:np) )
1323	ALLOCATE( trace_mls(1:num_trace_gases,1:np) )
1324	ALLOCATE( trace_mls_tmp(1:nabs,1:np) )
1325
1326
1327	nc_stat = NF90_INQ_VARID( id, "Pressure", id_var )
1328	CALL handle_netcdf_error( 'netcdf', 550 )
1329	nc_stat = NF90_GET_VAR( id, id_var, p_mls )
1330	CALL handle_netcdf_error( 'netcdf', 550 )
1331
1332	nc_stat = NF90_INQ_VARID( id, "AbsorberAmountMLS", id_var )
1333	CALL handle_netcdf_error( 'netcdf', 550 )
1334	nc_stat = NF90_GET_VAR( id, id_var, trace_mls_tmp )
1335	CALL handle_netcdf_error( 'netcdf', 550 )
1336
1337
1338	!
1339	!-- Write absorber amounts (mls) to trace_mls
1340	DO n = 1, num_trace_gases
1341	CALL getAbsorberIndex( TRIM( trace_names(n) ), id_abs )
1342
1343	trace_mls(n,1:np) = trace_mls_tmp(id_abs,1:np)
1344
1345	!
1346	!-- Replace missing values by zero
1347	WHERE ( trace_mls(n,:) > 2.0_wp )
1348	trace_mls(n,:) = 0.0_wp
1349	END WHERE
1350	END DO
1351
1352	DEALLOCATE ( trace_mls_tmp )
1353
1354	nc_stat = NF90_CLOSE( id )
1355	CALL handle_netcdf_error( 'netcdf', 551 )
1356
1357	!
1358	!-- Add extra pressure level for calculations of the trace gas paths
1359	ALLOCATE ( rrtm_play_tmp(1:nzt_rad+1) )
1360	ALLOCATE ( rrtm_plev_tmp(1:nzt_rad+2) )
1361
1362	rrtm_play_tmp(1:nzt_rad) = rrtm_play(0,1:nzt_rad)
1363	rrtm_plev_tmp(1:nzt_rad+1) = rrtm_plev(0,1:nzt_rad+1)
1364	rrtm_play_tmp(nzt_rad+1) = rrtm_plev(0,nzt_rad+1) * 0.5_wp
1365	rrtm_plev_tmp(nzt_rad+2) = MIN( 1.0E-4_wp, 0.25_wp &
1366	* rrtm_plev(0,nzt_rad+1) )
1367
1368	!
1369	!-- Calculate trace gas path (zero at surface) with interpolation to the
1370	!-- sounding levels
1371	ALLOCATE ( trace_mls_path(1:nzt_rad+2,1:num_trace_gases) )
1372
1373	trace_mls_path(nzb+1,:) = 0.0_wp
1374
1375	DO k = nzb+2, nzt_rad+2
1376	DO m = 1, num_trace_gases
1377	trace_mls_path(k,m) = trace_mls_path(k-1,m)
1378
1379	!
1380	!-- When the pressure level is higher than the trace gas pressure
1381	!-- level, assume that
1382	IF ( rrtm_plev_tmp(k-1) .GT. p_mls(1) ) THEN
1383
1384	trace_mls_path(k,m) = trace_mls_path(k,m) + trace_mls(m,1) &
1385	* ( rrtm_plev_tmp(k-1) &
1386	- MAX( p_mls(1), rrtm_plev_tmp(k) ) &
1387	) / g
1388	ENDIF
1389
1390	!
1391	!-- Integrate for each sounding level from the contributing p_mls
1392	!-- levels
1393	DO n = 2, np
1394	!
1395	!-- Limit p_mls so that it is within the model level
1396	p_mls_u = MIN( rrtm_plev_tmp(k-1), &
1397	MAX( rrtm_plev_tmp(k), p_mls(n) ) )
1398	p_mls_l = MIN( rrtm_plev_tmp(k-1), &
1399	MAX( rrtm_plev_tmp(k), p_mls(n-1) ) )
1400
1401	IF ( p_mls_l .GT. p_mls_u ) THEN
1402
1403	!
1404	!-- Calculate weights for interpolation
1405	p_mls_m = 0.5_wp * (p_mls_l + p_mls_u)
1406	p_wgt_u = (p_mls(n-1) - p_mls_m) / (p_mls(n-1) - p_mls(n))
1407	p_wgt_l = (p_mls_m - p_mls(n)) / (p_mls(n-1) - p_mls(n))
1408
1409	!
1410	!-- Add level to trace gas path
1411	trace_mls_path(k,m) = trace_mls_path(k,m) &
1412	+ ( p_wgt_u * trace_mls(m,n) &
1413	+ p_wgt_l * trace_mls(m,n-1) ) &
1414	* (p_mls_l + p_mls_u) / g
1415	ENDIF
1416	ENDDO
1417
1418	IF ( rrtm_plev_tmp(k) .LT. p_mls(np) ) THEN
1419	trace_mls_path(k,m) = trace_mls_path(k,m) + trace_mls(m,np) &
1420	* ( MIN( rrtm_plev_tmp(k-1), p_mls(np) ) &
1421	- rrtm_plev_tmp(k) &
1422	) / g
1423	ENDIF
1424	ENDDO
1425	ENDDO
1426
1427
1428	!
1429	!-- Prepare trace gas path profiles
1430	ALLOCATE ( trace_path_tmp(1:nzt_rad+1) )
1431
1432	DO m = 1, num_trace_gases
1433
1434	trace_path_tmp(1:nzt_rad+1) = ( trace_mls_path(2:nzt_rad+2,m) &
1435	- trace_mls_path(1:nzt_rad+1,m) ) * g &
1436	/ ( rrtm_plev_tmp(1:nzt_rad+1) &
1437	- rrtm_plev_tmp(2:nzt_rad+2) )
1438
1439	!
1440	!-- Save trace gas paths to the respective arrays
1441	SELECT CASE ( TRIM( trace_names(m) ) )
1442
1443	CASE ( 'O3' )
1444
1445	rrtm_o3vmr(0,:) = trace_path_tmp(:)
1446
1447	CASE ( 'CO2' )
1448
1449	rrtm_co2vmr(0,:) = trace_path_tmp(:)
1450
1451	CASE ( 'CH4' )
1452
1453	rrtm_ch4vmr(0,:) = trace_path_tmp(:)
1454
1455	CASE ( 'N2O' )
1456
1457	rrtm_n2ovmr(0,:) = trace_path_tmp(:)
1458
1459	CASE ( 'O2' )
1460
1461	rrtm_o2vmr(0,:) = trace_path_tmp(:)
1462
1463	CASE ( 'CFC11' )
1464
1465	rrtm_cfc11vmr(0,:) = trace_path_tmp(:)
1466
1467	CASE ( 'CFC12' )
1468
1469	rrtm_cfc12vmr(0,:) = trace_path_tmp(:)
1470
1471	CASE ( 'CFC22' )
1472
1473	rrtm_cfc22vmr(0,:) = trace_path_tmp(:)
1474
1475	CASE ( 'CCL4' )
1476
1477	rrtm_ccl4vmr(0,:) = trace_path_tmp(:)
1478
1479	CASE DEFAULT
1480
1481	END SELECT
1482
1483	ENDDO
1484
1485	DEALLOCATE ( trace_path_tmp )
1486	DEALLOCATE ( trace_mls_path )
1487	DEALLOCATE ( rrtm_play_tmp )
1488	DEALLOCATE ( rrtm_plev_tmp )
1489	DEALLOCATE ( trace_mls )
1490	DEALLOCATE ( p_mls )
1491
1492	END SUBROUTINE read_trace_gas_data
1493
1494	#endif
1495
1496
1497	!------------------------------------------------------------------------------!
1498	! Description:
1499	! ------------
1500	!> Calculate temperature tendency due to radiative cooling/heating.
1501	!> Cache-optimized version.
1502	!------------------------------------------------------------------------------!
1503	SUBROUTINE radiation_tendency_ij ( i, j, tend )
1504
1505	USE arrays_3d, &
1506	ONLY: dzw
1507
1508	USE cloud_parameters, &
1509	ONLY: pt_d_t, cp
1510
1511	USE control_parameters, &
1512	ONLY: rho_surface
1513
1514	IMPLICIT NONE
1515
1516	INTEGER(iwp) :: i, j, k
1517
1518	REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: tend
1519
1520	#if defined ( __rrtmg )
1521
1522	REAL(wp) :: rad_sw_net_l, rad_sw_net_u, rad_lw_net_l, rad_lw_net_u
1523
1524	rad_sw_net_l = 0.0_wp
1525	rad_sw_net_u = 0.0_wp
1526	rad_lw_net_l = 0.0_wp
1527	rad_lw_net_u = 0.0_wp
1528
1529	!
1530	!-- Calculate radiative flux divergence
1531	DO k = nzb+1, nzt+1
1532
1533	rad_sw_net_l = rad_sw_in(k-1,j,i) - rad_sw_out(k-1,j,i)
1534	rad_sw_net_u = rad_sw_in(k,j,i) - rad_sw_out(k,j,i)
1535	rad_lw_net_l = rad_lw_in(k-1,j,i) - rad_lw_out(k-1,j,i)
1536	rad_lw_net_u = rad_lw_in(k,j,i) - rad_lw_out(k,j,i)
1537
1538	tend(k,j,i) = tend(k,j,i) + ( rad_sw_net_u - rad_sw_net_l &
1539	+ rad_lw_net_u - rad_lw_net_l ) / &
1540	( dzw(k) * cp * rho_surface ) * pt_d_t(k)
1541	ENDDO
1542
1543	#endif
1544
1545	END SUBROUTINE radiation_tendency_ij
1546
1547
1548	!------------------------------------------------------------------------------!
1549	! Description:
1550	! ------------
1551	!> Calculate temperature tendency due to radiative cooling/heating.
1552	!> Vector-optimized version
1553	!------------------------------------------------------------------------------!
1554	SUBROUTINE radiation_tendency ( tend )
1555
1556	USE arrays_3d, &
1557	ONLY: dzw
1558
1559	USE cloud_parameters, &
1560	ONLY: pt_d_t, cp
1561
1562	USE indices, &
1563	ONLY: nxl, nxr, nyn, nys
1564
1565	USE control_parameters, &
1566	ONLY: rho_surface
1567
1568	IMPLICIT NONE
1569
1570	INTEGER(iwp) :: i, j, k
1571
1572	REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: tend
1573
1574	#if defined ( __rrtmg )
1575
1576	REAL(wp) :: rad_sw_net_l, rad_sw_net_u, rad_lw_net_l, rad_lw_net_u
1577
1578	rad_sw_net_l = 0.0_wp
1579	rad_sw_net_u = 0.0_wp
1580	rad_lw_net_l = 0.0_wp
1581	rad_lw_net_u = 0.0_wp
1582
1583	DO i = nxl, nxr
1584	DO j = nys, nyn
1585
1586	!
1587	!-- Calculate radiative flux divergence
1588	DO k = nzb+1, nzt+1
1589
1590	rad_sw_net_l = rad_sw_in(k-1,j,i) - rad_sw_out(k-1,j,i)
1591	rad_sw_net_u = rad_sw_in(k ,j,i) - rad_sw_out(k ,j,i)
1592	rad_lw_net_l = rad_lw_in(k-1,j,i) - rad_lw_out(k-1,j,i)
1593	rad_lw_net_u = rad_lw_in(k ,j,i) - rad_lw_out(k ,j,i)
1594
1595	tend(k,j,i) = tend(k,j,i) + ( rad_sw_net_u - rad_sw_net_l &
1596	+ rad_lw_net_u - rad_lw_net_l ) / &
1597	( dzw(k) * cp * rho_surface ) * pt_d_t(k)
1598	ENDDO
1599	ENDDO
1600	ENDDO
1601	#endif
1602
1603	END SUBROUTINE radiation_tendency
1604
1605	END MODULE radiation_model_mod

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