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source: palm/trunk/SOURCE/radiation_model.f90 @ 1634

Last change on this file since 1634 was 1607, checked in by maronga, 9 years ago
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1	MODULE radiation_model_mod
2
3	!--------------------------------------------------------------------------------!
4	! This file is part of PALM.
5	!
6	! PALM is free software: you can redistribute it and/or modify it under the terms
7	! of the GNU General Public License as published by the Free Software Foundation,
8	! either version 3 of the License, or (at your option) any later version.
9	!
10	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
11	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
12	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
13	!
14	! You should have received a copy of the GNU General Public License along with
15	! PALM. If not, see <http://www.gnu.org/licenses/>.
16	!
17	! Copyright 1997-2015 Leibniz Universitaet Hannover
18	!--------------------------------------------------------------------------------!
19	!
20	! Current revisions:
21	! -----------------
22	!
23	!
24	! Former revisions:
25	! -----------------
26	! $Id: radiation_model.f90 1607 2015-06-29 10:44:15Z hoffmann $
27	!
28	! 1606 2015-06-29 10:43:37Z maronga
29	! Added preprocessor directive __netcdf to allow for compiling without netCDF.
30	! Note, however, that RRTMG cannot be used without netCDF.
31	!
32	! 1590 2015-05-08 13:56:27Z maronga
33	! Bugfix: definition of character strings requires same length for all elements
34	!
35	! 1587 2015-05-04 14:19:01Z maronga
36	! Added albedo class for snow
37	!
38	! 1585 2015-04-30 07:05:52Z maronga
39	! Added support for RRTMG
40	!
41	! 1571 2015-03-12 16:12:49Z maronga
42	! Added missing KIND attribute. Removed upper-case variable names
43	!
44	! 1551 2015-03-03 14:18:16Z maronga
45	! Added support for data output. Various variables have been renamed. Added
46	! interface for different radiation schemes (currently: clear-sky, constant, and
47	! RRTM (not yet implemented).
48	!
49	! 1496 2014-12-02 17:25:50Z maronga
50	! Initial revision
51	!
52	!
53	! Description:
54	! ------------
55	! Radiation models and interfaces
56	! To do: move variable definitions used in init_radiation only to the subroutine
57	! as they are no longer required after initialization.
58	! Note that many variables have a leading dummy dimension (0:0) in order to
59	! match the assume-size shape expected by the RRTMG model
60	!
61	! To do:
62	! - Output of full column vertical profiles used in RRTMG
63	! - Output of other rrtm arrays (such as volume mixing ratios)
64	! - Adapt for use with topography
65	! - Remove 3D dummy arrays (such as clear-sky output)
66	!------------------------------------------------------------------------------!
67
68	USE arrays_3d, &
69	ONLY: hyp, pt, q, ql, zw
70
71	USE cloud_parameters, &
72	ONLY: cp, l_v, nc_const, rho_l, sigma_gc
73
74	USE constants, &
75	ONLY: pi
76
77	USE control_parameters, &
78	ONLY: cloud_droplets, cloud_physics, g, initializing_actions, &
79	large_scale_forcing, lsf_surf, phi, pt_surface, &
80	surface_pressure, time_since_reference_point
81
82	USE indices, &
83	ONLY: nxl, nxlg, nxr, nxrg, nyn, nyng, nys, nysg, nzb_s_inner, nzb, nzt
84
85	USE kinds
86
87	#if defined ( __netcdf )
88	USE netcdf
89	#endif
90
91	USE netcdf_control, &
92	ONLY: dots_label, dots_num, dots_unit
93
94	#if defined ( __rrtmg )
95	USE parrrsw, &
96	ONLY: naerec, nbndsw
97
98	USE parrrtm, &
99	ONLY: nbndlw
100
101	USE rrtmg_lw_init, &
102	ONLY: rrtmg_lw_ini
103
104	USE rrtmg_sw_init, &
105	ONLY: rrtmg_sw_ini
106
107	USE rrtmg_lw_rad, &
108	ONLY: rrtmg_lw
109
110	USE rrtmg_sw_rad, &
111	ONLY: rrtmg_sw
112	#endif
113
114
115
116	IMPLICIT NONE
117
118	CHARACTER(10) :: radiation_scheme = 'clear-sky' ! 'constant', 'clear-sky', or 'rrtmg'
119
120	!
121	!-- Predefined Land surface classes (albedo_type) after Briegleb (1992)
122	CHARACTER(37), DIMENSION(0:16), PARAMETER :: albedo_type_name = (/ &
123	'user defined ', & ! 0
124	'ocean ', & ! 1
125	'mixed farming, tall grassland ', & ! 2
126	'tall/medium grassland ', & ! 3
127	'evergreen shrubland ', & ! 4
128	'short grassland/meadow/shrubland ', & ! 5
129	'evergreen needleleaf forest ', & ! 6
130	'mixed deciduous evergreen forest ', & ! 7
131	'deciduous forest ', & ! 8
132	'tropical evergreen broadleaved forest', & ! 9
133	'medium/tall grassland/woodland ', & ! 10
134	'desert, sandy ', & ! 11
135	'desert, rocky ', & ! 12
136	'tundra ', & ! 13
137	'land ice ', & ! 14
138	'sea ice ', & ! 15
139	'snow ' & ! 16
140	/)
141
142	INTEGER(iwp) :: albedo_type = 5, & !: Albedo surface type (default: short grassland)
143	day, & !: current day of the year
144	day_init = 172, & !: day of the year at model start (21/06)
145	dots_rad = 0 !: starting index for timeseries output
146
147
148
149
150
151
152	LOGICAL :: constant_albedo = .FALSE., & !: flag parameter indicating whether the albedo may change depending on zenith
153	lw_radiation = .TRUE., & !: flag parameter indicing whether longwave radiation shall be calculated
154	radiation = .FALSE., & !: flag parameter indicating whether the radiation model is used
155	sun_up = .TRUE., & !: flag parameter indicating whether the sun is up or down
156	sw_radiation = .TRUE. !: flag parameter indicing whether shortwave radiation shall be calculated
157
158	REAL(wp), PARAMETER :: sigma_sb = 5.67E-8_wp, & !: Stefan-Boltzmann constant
159	solar_constant = 1368.0_wp !: solar constant at top of atmosphere
160
161	REAL(wp) :: albedo = 9999999.9_wp, & !: NAMELIST alpha
162	albedo_lw_dif = 9999999.9_wp, & !: NAMELIST aldif
163	albedo_lw_dir = 9999999.9_wp, & !: NAMELIST aldir
164	albedo_sw_dif = 9999999.9_wp, & !: NAMELIST asdif
165	albedo_sw_dir = 9999999.9_wp, & !: NAMELIST asdir
166	dt_radiation = 0.0_wp, & !: radiation model timestep
167	emissivity = 0.95_wp, & !: NAMELIST surface emissivity
168	exn, & !: Exner function
169	lon = 0.0_wp, & !: longitude in radians
170	lat = 0.0_wp, & !: latitude in radians
171	decl_1, & !: declination coef. 1
172	decl_2, & !: declination coef. 2
173	decl_3, & !: declination coef. 3
174	time_utc, & !: current time in UTC
175	time_utc_init = 43200.0_wp, & !: UTC time at model start (noon)
176	lambda = 0.0_wp, & !: longitude in degrees
177	net_radiation = 0.0_wp, & !: net radiation at surface
178	time_radiation = 0.0_wp, & !: time since last call of radiation code
179	sky_trans !: sky transmissivity
180
181
182	REAL(wp), DIMENSION(0:0) :: zenith !: solar zenith angle
183
184	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: &
185	alpha, & !: surface broadband albedo (used for clear-sky scheme)
186	rad_net, & !: net radiation at the surface
187	rad_net_av !: average of rad_net
188
189	!
190	!-- Land surface albedos for solar zenith angle of 60Â° after Briegleb (1992)
191	!-- (shortwave, longwave, broadband): sw, lw, bb,
192	REAL(wp), DIMENSION(0:2,1:16), PARAMETER :: albedo_pars = RESHAPE( (/&
193	0.06_wp, 0.06_wp, 0.06_wp, & ! 1
194	0.09_wp, 0.28_wp, 0.19_wp, & ! 2
195	0.11_wp, 0.33_wp, 0.23_wp, & ! 3
196	0.11_wp, 0.33_wp, 0.23_wp, & ! 4
197	0.14_wp, 0.34_wp, 0.25_wp, & ! 5
198	0.06_wp, 0.22_wp, 0.14_wp, & ! 6
199	0.06_wp, 0.27_wp, 0.17_wp, & ! 7
200	0.06_wp, 0.31_wp, 0.19_wp, & ! 8
201	0.06_wp, 0.22_wp, 0.14_wp, & ! 9
202	0.06_wp, 0.28_wp, 0.18_wp, & ! 10
203	0.35_wp, 0.51_wp, 0.43_wp, & ! 11
204	0.24_wp, 0.40_wp, 0.32_wp, & ! 12
205	0.10_wp, 0.27_wp, 0.19_wp, & ! 13
206	0.90_wp, 0.65_wp, 0.77_wp, & ! 14
207	0.90_wp, 0.65_wp, 0.77_wp, & ! 15
208	0.95_wp, 0.70_wp, 0.82_wp & ! 16
209	/), (/ 3, 16 /) )
210
211	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE, TARGET :: &
212	rad_sw_in, & !: incoming shortwave radiation (W/m2)
213	rad_sw_in_av, & !: average of rad_sw_in
214	rad_sw_out, & !: outgoing shortwave radiation (W/m2)
215	rad_sw_out_av, & !: average of rad_sw_out
216	rad_lw_in, & !: incoming longwave radiation (W/m2)
217	rad_lw_in_av, & !: average of rad_lw_in
218	rad_lw_out, & !: outgoing longwave radiation (W/m2)
219	rad_lw_out_av !: average of rad_lw_out
220
221	!
222	!-- Variables and parameters used in RRTMG only
223	#if defined ( __rrtmg )
224	CHARACTER(LEN=12) :: rrtm_input_file = "RAD_SND_DATA" !: name of the NetCDF input file (sounding data)
225
226
227	!
228	!-- Flag parameters for RRTMGS (should not be changed)
229	INTEGER(iwp), PARAMETER :: rrtm_inflglw = 2, & !: flag for lw cloud optical properties (0,1,2)
230	rrtm_iceflglw = 0, & !: flag for lw ice particle specifications (0,1,2,3)
231	rrtm_liqflglw = 1, & !: flag for lw liquid droplet specifications
232	rrtm_inflgsw = 2, & !: flag for sw cloud optical properties (0,1,2)
233	rrtm_iceflgsw = 0, & !: flag for sw ice particle specifications (0,1,2,3)
234	rrtm_liqflgsw = 1 !: flag for sw liquid droplet specifications
235
236	!
237	!-- The following variables should be only changed with care, as this will
238	!-- require further setting of some variables, which is currently not
239	!-- implemented (aerosols, ice phase).
240	INTEGER(iwp) :: nzt_rad, & !: upper vertical limit for radiation calculations
241	rrtm_icld = 0, & !: cloud flag (0: clear sky column, 1: cloudy column)
242	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)
243	rrtm_idrv = 0 !: longwave upward flux calculation option (0,1)
244
245	LOGICAL :: snd_exists = .FALSE. !: flag parameter to check whether a user-defined input files exists
246
247	REAL(wp), PARAMETER :: mol_weight_air_d_wv = 1.607793_wp !: molecular weight dry air / water vapor
248
249	REAL(wp), DIMENSION(:), ALLOCATABLE :: hyp_snd, & !: hypostatic pressure from sounding data (hPa)
250	q_snd, & !: specific humidity from sounding data (kg/kg) - dummy at the moment
251	rrtm_tsfc, & !: dummy array for storing surface temperature
252	t_snd !: actual temperature from sounding data (hPa)
253
254	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: aldif, & !: longwave diffuse albedo solar angle of 60Â°
255	aldir, & !: longwave direct albedo solar angle of 60Â°
256	asdif, & !: shortwave diffuse albedo solar angle of 60Â°
257	asdir, & !: shortwave direct albedo solar angle of 60Â°
258	rrtm_ccl4vmr, & !: CCL4 volume mixing ratio (g/mol)
259	rrtm_cfc11vmr, & !: CFC11 volume mixing ratio (g/mol)
260	rrtm_cfc12vmr, & !: CFC12 volume mixing ratio (g/mol)
261	rrtm_cfc22vmr, & !: CFC22 volume mixing ratio (g/mol)
262	rrtm_ch4vmr, & !: CH4 volume mixing ratio
263	rrtm_cicewp, & !: in-cloud ice water path (g/mÂ²)
264	rrtm_cldfr, & !: cloud fraction (0,1)
265	rrtm_cliqwp, & !: in-cloud liquid water path (g/mÂ²)
266	rrtm_co2vmr, & !: CO2 volume mixing ratio (g/mol)
267	rrtm_emis, & !: surface emissivity (0-1)
268	rrtm_h2ovmr, & !: H2O volume mixing ratio
269	rrtm_n2ovmr, & !: N2O volume mixing ratio
270	rrtm_o2vmr, & !: O2 volume mixing ratio
271	rrtm_o3vmr, & !: O3 volume mixing ratio
272	rrtm_play, & !: pressure layers (hPa, zu-grid)
273	rrtm_plev, & !: pressure layers (hPa, zw-grid)
274	rrtm_reice, & !: cloud ice effective radius (microns)
275	rrtm_reliq, & !: cloud water drop effective radius (microns)
276	rrtm_tlay, & !: actual temperature (K, zu-grid)
277	rrtm_tlev, & !: actual temperature (K, zw-grid)
278	rrtm_lwdflx, & !: RRTM output of incoming longwave radiation flux (W/m2)
279	rrtm_lwuflx, & !: RRTM output of outgoing longwave radiation flux (W/m2)
280	rrtm_lwhr, & !: RRTM output of longwave radiation heating rate (K/d)
281	rrtm_lwuflxc, & !: RRTM output of incoming clear sky longwave radiation flux (W/m2)
282	rrtm_lwdflxc, & !: RRTM output of outgoing clear sky longwave radiation flux (W/m2)
283	rrtm_lwhrc, & !: RRTM output of incoming longwave clear sky radiation heating rate (K/d)
284	rrtm_swdflx, & !: RRTM output of incoming shortwave radiation flux (W/m2)
285	rrtm_swuflx, & !: RRTM output of outgoing shortwave radiation flux (W/m2)
286	rrtm_swhr, & !: RRTM output of shortwave radiation heating rate (K/d)
287	rrtm_swuflxc, & !: RRTM output of incoming clear sky shortwave radiation flux (W/m2)
288	rrtm_swdflxc, & !: RRTM output of outgoing clear sky shortwave radiation flux (W/m2)
289	rrtm_swhrc !: RRTM output of incoming shortwave clear sky radiation heating rate (K/d)
290
291	!
292	!-- Definition of arrays that are currently not used for calling RRTMG (due to setting of flag parameters)
293	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: rad_lw_cs_in, & !: incoming clear sky longwave radiation (W/m2) (not used)
294	rad_lw_cs_out, & !: outgoing clear sky longwave radiation (W/m2) (not used)
295	rad_lw_cs_hr, & !: longwave clear sky radiation heating rate (K/d) (not used)
296	rad_lw_hr, & !: longwave radiation heating rate (K/d)
297	rad_sw_cs_in, & !: incoming clear sky shortwave radiation (W/m2) (not used)
298	rad_sw_cs_out, & !: outgoing clear sky shortwave radiation (W/m2) (not used)
299	rad_sw_cs_hr, & !: shortwave clear sky radiation heating rate (K/d) (not used)
300	rad_sw_hr, & !: shortwave radiation heating rate (K/d)
301	rrtm_aldif, & !: surface albedo for longwave diffuse radiation
302	rrtm_aldir, & !: surface albedo for longwave direct radiation
303	rrtm_asdif, & !: surface albedo for shortwave diffuse radiation
304	rrtm_asdir, & !: surface albedo for shortwave direct radiation
305	rrtm_lw_tauaer, & !: lw aerosol optical depth
306	rrtm_lw_taucld, & !: lw in-cloud optical depth
307	rrtm_sw_taucld, & !: sw in-cloud optical depth
308	rrtm_sw_ssacld, & !: sw in-cloud single scattering albedo
309	rrtm_sw_asmcld, & !: sw in-cloud asymmetry parameter
310	rrtm_sw_fsfcld, & !: sw in-cloud forward scattering fraction
311	rrtm_sw_tauaer, & !: sw aerosol optical depth
312	rrtm_sw_ssaaer, & !: sw aerosol single scattering albedo
313	rrtm_sw_asmaer, & !: sw aerosol asymmetry parameter
314	rrtm_sw_ecaer !: sw aerosol optical detph at 0.55 microns (rrtm_iaer = 6 only)
315	#endif
316
317	INTERFACE init_radiation
318	MODULE PROCEDURE init_radiation
319	END INTERFACE init_radiation
320
321	INTERFACE radiation_clearsky
322	MODULE PROCEDURE radiation_clearsky
323	END INTERFACE radiation_clearsky
324
325	INTERFACE radiation_rrtmg
326	MODULE PROCEDURE radiation_rrtmg
327	END INTERFACE radiation_rrtmg
328
329	INTERFACE radiation_tendency
330	MODULE PROCEDURE radiation_tendency
331	MODULE PROCEDURE radiation_tendency_ij
332	END INTERFACE radiation_tendency
333
334	SAVE
335
336	PRIVATE
337
338	PUBLIC albedo, albedo_type, albedo_type_name, albedo_lw_dif, albedo_lw_dir,&
339	albedo_sw_dif, albedo_sw_dir, constant_albedo, day_init, dots_rad, &
340	dt_radiation, init_radiation, lambda, lw_radiation, net_radiation, &
341	rad_net, rad_net_av, radiation, radiation_clearsky, &
342	radiation_rrtmg, radiation_scheme, radiation_tendency, rad_lw_in, &
343	rad_lw_in_av, rad_lw_out, rad_lw_out_av, rad_sw_in, rad_sw_in_av, &
344	rad_sw_out, rad_sw_out_av, sigma_sb, sw_radiation, time_radiation, &
345	time_utc_init
346
347	#if defined ( __rrtmg )
348	PUBLIC rrtm_aldif, rrtm_aldir, rrtm_asdif, rrtm_asdir
349	#endif
350
351	CONTAINS
352
353	!------------------------------------------------------------------------------!
354	! Description:
355	! ------------
356	!-- Initialization of the radiation model
357	!------------------------------------------------------------------------------!
358	SUBROUTINE init_radiation
359
360	IMPLICIT NONE
361
362	!
363	!-- Allocate array for storing the surface net radiation
364	IF ( .NOT. ALLOCATED ( rad_net ) ) THEN
365	ALLOCATE ( rad_net(nysg:nyng,nxlg:nxrg) )
366	rad_net = 0.0_wp
367	ENDIF
368
369	!
370	!-- Fix net radiation in case of radiation_scheme = 'constant'
371	IF ( radiation_scheme == 'constant' ) THEN
372	rad_net = net_radiation
373	radiation = .FALSE.
374	!
375	!-- Calculate orbital constants
376	ELSE
377	decl_1 = SIN(23.45_wp * pi / 180.0_wp)
378	decl_2 = 2.0_wp * pi / 365.0_wp
379	decl_3 = decl_2 * 81.0_wp
380	lat = phi * pi / 180.0_wp
381	lon = lambda * pi / 180.0_wp
382	ENDIF
383
384
385	IF ( radiation_scheme == 'clear-sky' ) THEN
386
387	ALLOCATE ( alpha(nysg:nyng,nxlg:nxrg) )
388
389	IF ( .NOT. ALLOCATED ( rad_sw_in ) ) THEN
390	ALLOCATE ( rad_sw_in(0:0,nysg:nyng,nxlg:nxrg) )
391	ENDIF
392	IF ( .NOT. ALLOCATED ( rad_sw_out ) ) THEN
393	ALLOCATE ( rad_sw_out(0:0,nysg:nyng,nxlg:nxrg) )
394	ENDIF
395
396	IF ( .NOT. ALLOCATED ( rad_sw_in_av ) ) THEN
397	ALLOCATE ( rad_sw_in_av(0:0,nysg:nyng,nxlg:nxrg) )
398	ENDIF
399	IF ( .NOT. ALLOCATED ( rad_sw_out_av ) ) THEN
400	ALLOCATE ( rad_sw_out_av(0:0,nysg:nyng,nxlg:nxrg) )
401	ENDIF
402
403	IF ( .NOT. ALLOCATED ( rad_lw_in ) ) THEN
404	ALLOCATE ( rad_lw_in(0:0,nysg:nyng,nxlg:nxrg) )
405	ENDIF
406	IF ( .NOT. ALLOCATED ( rad_lw_out ) ) THEN
407	ALLOCATE ( rad_lw_out(0:0,nysg:nyng,nxlg:nxrg) )
408	ENDIF
409
410	IF ( .NOT. ALLOCATED ( rad_lw_in_av ) ) THEN
411	ALLOCATE ( rad_lw_in_av(0:0,nysg:nyng,nxlg:nxrg) )
412	ENDIF
413	IF ( .NOT. ALLOCATED ( rad_lw_out_av ) ) THEN
414	ALLOCATE ( rad_lw_out_av(0:0,nysg:nyng,nxlg:nxrg) )
415	ENDIF
416
417	rad_sw_in = 0.0_wp
418	rad_sw_out = 0.0_wp
419	rad_lw_in = 0.0_wp
420	rad_lw_out = 0.0_wp
421
422	!
423	!-- Overwrite albedo if manually set in parameter file
424	IF ( albedo_type /= 0 .AND. albedo == 9999999.9_wp ) THEN
425	albedo = albedo_pars(2,albedo_type)
426	ENDIF
427
428	alpha = albedo
429
430	!
431	!-- Initialization actions for RRTMG
432	ELSEIF ( radiation_scheme == 'rrtmg' ) THEN
433	#if defined ( __rrtmg )
434	!
435	!-- Allocate albedos
436	ALLOCATE ( rrtm_aldif(0:0,nysg:nyng,nxlg:nxrg) )
437	ALLOCATE ( rrtm_aldir(0:0,nysg:nyng,nxlg:nxrg) )
438	ALLOCATE ( rrtm_asdif(0:0,nysg:nyng,nxlg:nxrg) )
439	ALLOCATE ( rrtm_asdir(0:0,nysg:nyng,nxlg:nxrg) )
440	ALLOCATE ( aldif(nysg:nyng,nxlg:nxrg) )
441	ALLOCATE ( aldir(nysg:nyng,nxlg:nxrg) )
442	ALLOCATE ( asdif(nysg:nyng,nxlg:nxrg) )
443	ALLOCATE ( asdir(nysg:nyng,nxlg:nxrg) )
444
445	IF ( albedo_type /= 0 ) THEN
446	IF ( albedo_lw_dif == 9999999.9_wp ) THEN
447	albedo_lw_dif = albedo_pars(0,albedo_type)
448	albedo_lw_dir = albedo_lw_dif
449	ENDIF
450	IF ( albedo_sw_dif == 9999999.9_wp ) THEN
451	albedo_sw_dif = albedo_pars(1,albedo_type)
452	albedo_sw_dir = albedo_sw_dif
453	ENDIF
454	ENDIF
455
456	aldif(:,:) = albedo_lw_dif
457	aldir(:,:) = albedo_lw_dir
458	asdif(:,:) = albedo_sw_dif
459	asdir(:,:) = albedo_sw_dir
460	!
461	!-- Calculate initial values of current (cosine of) the zenith angle and
462	!-- whether the sun is up
463	CALL calc_zenith
464	!
465	!-- Calculate initial surface albedo
466	IF ( .NOT. constant_albedo ) THEN
467	CALL calc_albedo
468	ELSE
469	rrtm_aldif(0,:,:) = aldif(:,:)
470	rrtm_aldir(0,:,:) = aldir(:,:)
471	rrtm_asdif(0,:,:) = asdif(:,:)
472	rrtm_asdir(0,:,:) = asdir(:,:)
473	ENDIF
474
475	!
476	!-- Allocate surface emissivity
477	ALLOCATE ( rrtm_emis(0:0,1:nbndlw+1) )
478	rrtm_emis = emissivity
479
480	!
481	!-- Allocate 3d arrays of radiative fluxes and heating rates
482	ALLOCATE ( rad_sw_hr(nzb+1:nzt+1,nysg:nyng,nxlg:nxrg) )
483	ALLOCATE ( rad_sw_cs_in(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
484	ALLOCATE ( rad_sw_cs_out(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
485	ALLOCATE ( rad_sw_cs_hr(nzb+1:nzt+1,nysg:nyng,nxlg:nxrg) )
486
487	IF ( .NOT. ALLOCATED ( rad_sw_in ) ) THEN
488	ALLOCATE ( rad_sw_in(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
489	rad_sw_in = 0.0_wp
490
491	ENDIF
492
493	IF ( .NOT. ALLOCATED ( rad_sw_in_av ) ) THEN
494	ALLOCATE ( rad_sw_in_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
495	rad_sw_out = 0.0_wp
496	ENDIF
497
498	IF ( .NOT. ALLOCATED ( rad_sw_out ) ) THEN
499	ALLOCATE ( rad_sw_out(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
500	ENDIF
501
502	IF ( .NOT. ALLOCATED ( rad_sw_out_av ) ) THEN
503	ALLOCATE ( rad_sw_out_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
504	ENDIF
505
506	ALLOCATE ( rad_lw_hr(nzb+1:nzt+1,nysg:nyng,nxlg:nxrg) )
507	ALLOCATE ( rad_lw_cs_in(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
508	ALLOCATE ( rad_lw_cs_out(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
509	ALLOCATE ( rad_lw_cs_hr(nzb+1:nzt+1,nysg:nyng,nxlg:nxrg) )
510
511	IF ( .NOT. ALLOCATED ( rad_lw_in ) ) THEN
512	ALLOCATE ( rad_lw_in(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
513	rad_lw_in = 0.0_wp
514	ENDIF
515
516	IF ( .NOT. ALLOCATED ( rad_lw_in_av ) ) THEN
517	ALLOCATE ( rad_lw_in_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
518	ENDIF
519
520	IF ( .NOT. ALLOCATED ( rad_lw_out ) ) THEN
521	ALLOCATE ( rad_lw_out(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
522	rad_lw_out = 0.0_wp
523	ENDIF
524
525	IF ( .NOT. ALLOCATED ( rad_lw_out_av ) ) THEN
526	ALLOCATE ( rad_lw_out_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
527	ENDIF
528
529	rad_sw_hr = 0.0_wp
530	rad_sw_cs_in = 0.0_wp
531	rad_sw_cs_out = 0.0_wp
532	rad_sw_cs_hr = 0.0_wp
533
534	rad_lw_hr = 0.0_wp
535	rad_lw_cs_in = 0.0_wp
536	rad_lw_cs_out = 0.0_wp
537	rad_lw_cs_hr = 0.0_wp
538
539	!
540	!-- Allocate dummy array for storing surface temperature
541	ALLOCATE ( rrtm_tsfc(1) )
542
543	!
544	!-- Initialize RRTMG
545	IF ( lw_radiation ) CALL rrtmg_lw_ini ( cp )
546	IF ( sw_radiation ) CALL rrtmg_sw_ini ( cp )
547
548	!
549	!-- Set input files for RRTMG
550	INQUIRE(FILE="RAD_SND_DATA", EXIST=snd_exists)
551	IF ( .NOT. snd_exists ) THEN
552	rrtm_input_file = "rrtmg_lw.nc"
553	ENDIF
554
555	!
556	!-- Read vertical layers for RRTMG from sounding data
557	!-- The routine provides nzt_rad, hyp_snd(1:nzt_rad),
558	!-- t_snd(nzt+2:nzt_rad), rrtm_play(1:nzt_rad), rrtm_plev(1_nzt_rad+1),
559	!-- rrtm_tlay(nzt+2:nzt_rad), rrtm_tlev(nzt+2:nzt_rad+1)
560	CALL read_sounding_data
561
562	!
563	!-- Read trace gas profiles from file. This routine provides
564	!-- the rrtm_ arrays (1:nzt_rad+1)
565	CALL read_trace_gas_data
566	#endif
567	ENDIF
568
569	!
570	!-- Perform user actions if required
571	CALL user_init_radiation
572
573
574	!
575	!-- Add timeseries for radiation model
576	dots_rad = dots_num + 1
577	dots_label(dots_num+1) = "rad_net"
578	dots_label(dots_num+2) = "rad_lw_in"
579	dots_label(dots_num+3) = "rad_lw_out"
580	dots_label(dots_num+4) = "rad_sw_in"
581	dots_label(dots_num+5) = "rad_sw_out"
582	dots_unit(dots_num+1:dots_num+5) = "W/m2"
583	dots_num = dots_num + 5
584
585	!
586	!-- Output of albedos is only required for RRTMG
587	IF ( radiation_scheme == 'rrtmg' ) THEN
588	dots_label(dots_num+1) = "rrtm_aldif"
589	dots_label(dots_num+2) = "rrtm_aldir"
590	dots_label(dots_num+3) = "rrtm_asdif"
591	dots_label(dots_num+4) = "rrtm_asdir"
592	dots_unit(dots_num+1:dots_num+4) = ""
593	dots_num = dots_num + 4
594	ENDIF
595
596	!
597	!-- Calculate radiative fluxes at model start
598	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
599	IF ( radiation_scheme == 'clear-sky' ) THEN
600	CALL radiation_clearsky
601	ELSEIF ( radiation_scheme == 'rrtmg' ) THEN
602	CALL radiation_rrtmg
603	ENDIF
604	ENDIF
605
606	RETURN
607
608	END SUBROUTINE init_radiation
609
610
611	!------------------------------------------------------------------------------!
612	! Description:
613	! ------------
614	!-- A simple clear sky radiation model
615	!------------------------------------------------------------------------------!
616	SUBROUTINE radiation_clearsky
617
618	USE indices, &
619	ONLY: nbgp
620
621	IMPLICIT NONE
622
623	INTEGER(iwp) :: i, j, k
624
625	!
626	!-- Calculate current zenith angle
627	CALL calc_zenith
628
629	!
630	!-- Calculate sky transmissivity
631	sky_trans = 0.6_wp + 0.2_wp * zenith(0)
632
633	!
634	!-- Calculate value of the Exner function
635	exn = (surface_pressure / 1000.0_wp )**0.286_wp
636	!
637	!-- Calculate radiation fluxes and net radiation (rad_net) for each grid
638	!-- point
639	DO i = nxl, nxr
640	DO j = nys, nyn
641	k = nzb_s_inner(j,i)
642	rad_sw_in(0,j,i) = solar_constant * sky_trans * zenith(0)
643	rad_sw_out(0,j,i) = alpha(j,i) * rad_sw_in(0,j,i)
644	rad_lw_out(0,j,i) = sigma_sb * (pt(k,j,i) * exn)**4
645	rad_lw_in(0,j,i) = 0.8_wp * sigma_sb * (pt(k+1,j,i) * exn)**4
646	rad_net(j,i) = rad_sw_in(0,j,i) - rad_sw_out(0,j,i) &
647	+ rad_lw_in(0,j,i) - rad_lw_out(0,j,i)
648
649	ENDDO
650	ENDDO
651
652	CALL exchange_horiz_2d( rad_lw_in, nbgp )
653	CALL exchange_horiz_2d( rad_lw_out, nbgp )
654	CALL exchange_horiz_2d( rad_sw_in, nbgp )
655	CALL exchange_horiz_2d( rad_sw_out, nbgp )
656	CALL exchange_horiz_2d( rad_net, nbgp )
657
658	RETURN
659
660	END SUBROUTINE radiation_clearsky
661
662
663	!------------------------------------------------------------------------------!
664	! Description:
665	! ------------
666	!-- Implementation of the RRTMG radiation_scheme
667	!------------------------------------------------------------------------------!
668	SUBROUTINE radiation_rrtmg
669
670	USE indices, &
671	ONLY: nbgp
672
673	USE particle_attributes, &
674	ONLY: grid_particles, number_of_particles, particles, &
675	particle_advection_start, prt_count
676
677	IMPLICIT NONE
678
679	#if defined ( __rrtmg )
680
681	INTEGER(iwp) :: i, j, k, n !:
682
683	REAL(wp) :: s_r2 !: weighted sum over all droplets with r^2
684	REAL(wp) :: s_r3 !: weighted sum over all droplets with r^3
685
686	!
687	!-- Calculate current (cosine of) zenith angle and whether the sun is up
688	CALL calc_zenith
689	!
690	!-- Calculate surface albedo
691	IF ( .NOT. constant_albedo ) THEN
692	CALL calc_albedo
693	ENDIF
694
695	!
696	!-- Prepare input data for RRTMG
697
698	!
699	!-- In case of large scale forcing with surface data, calculate new pressure
700	!-- profile. nzt_rad might be modified by these calls and all required arrays
701	!-- will then be re-allocated
702	IF ( large_scale_forcing .AND. lsf_surf ) THEN
703	CALL read_sounding_data
704	CALL read_trace_gas_data
705	ENDIF
706	!
707	!-- Loop over all grid points
708	DO i = nxl, nxr
709	DO j = nys, nyn
710
711	!
712	!-- Prepare profiles of temperature and H2O volume mixing ratio
713	rrtm_tlev(0,nzb+1) = pt(nzb,j,i)
714
715	DO k = nzb+1, nzt+1
716	rrtm_tlay(0,k) = pt(k,j,i) * ( (hyp(k) ) / 100000.0_wp &
717	)*0.286_wp + ( l_v / cp ) ql(k,j,i)
718	rrtm_h2ovmr(0,k) = mol_weight_air_d_wv * (q(k,j,i) - ql(k,j,i))
719
720	ENDDO
721
722	!
723	!-- Avoid temperature/humidity jumps at the top of the LES domain by
724	!-- linear interpolation from nzt+2 to nzt+7
725	DO k = nzt+2, nzt+7
726	rrtm_tlay(0,k) = rrtm_tlay(0,nzt+1) &
727	+ ( rrtm_tlay(0,nzt+8) - rrtm_tlay(0,nzt+1) ) &
728	/ ( rrtm_play(0,nzt+8) - rrtm_play(0,nzt+1) ) &
729	* ( rrtm_play(0,k) - rrtm_play(0,nzt+1) )
730
731	rrtm_h2ovmr(0,k) = rrtm_h2ovmr(0,nzt+1) &
732	+ ( rrtm_h2ovmr(0,nzt+8) - rrtm_h2ovmr(0,nzt+1) )&
733	/ ( rrtm_play(0,nzt+8) - rrtm_play(0,nzt+1) )&
734	* ( rrtm_play(0,k) - rrtm_play(0,nzt+1) )
735
736	ENDDO
737
738	!-- Linear interpolate to zw grid
739	DO k = nzb+2, nzt+8
740	rrtm_tlev(0,k) = rrtm_tlay(0,k-1) + (rrtm_tlay(0,k) - &
741	rrtm_tlay(0,k-1)) &
742	/ ( rrtm_play(0,k) - rrtm_play(0,k-1) ) &
743	* ( rrtm_plev(0,k) - rrtm_play(0,k-1) )
744	ENDDO
745
746
747	!
748	!-- Calculate liquid water path and cloud fraction for each column.
749	!-- Note that LWP is required in g/mÂ² instead of kg/kg m.
750	rrtm_cldfr = 0.0_wp
751	rrtm_reliq = 0.0_wp
752	rrtm_cliqwp = 0.0_wp
753
754	DO k = nzb+1, nzt+1
755	rrtm_cliqwp(0,k) = ql(k,j,i) * 1000.0_wp * &
756	(rrtm_plev(0,k) - rrtm_plev(0,k+1)) * 100.0_wp / g
757
758	IF ( rrtm_cliqwp(0,k) .GT. 0 ) THEN
759	rrtm_cldfr(0,k) = 1.0_wp
760	rrtm_icld = 1
761
762	!
763	!-- Calculate cloud droplet effective radius
764	IF ( cloud_physics ) THEN
765	rrtm_reliq(0,k) = 1.0E6_wp * ( 3.0_wp * ql(k,j,i) &
766	/ ( 4.0_wp * pi * nc_const * rho_l ) &
767	)**0.33333333333333_wp &
768	* EXP( LOG( sigma_gc )**2 )
769
770	ELSEIF ( cloud_droplets ) THEN
771	number_of_particles = prt_count(k,j,i)
772
773	IF (number_of_particles <= 0) CYCLE
774	particles => grid_particles(k,j,i)%particles(1:number_of_particles)
775	s_r2 = 0.0_wp
776	s_r3 = 0.0_wp
777
778	DO n = 1, number_of_particles
779	IF ( particles(n)%particle_mask ) THEN
780	s_r2 = s_r2 + particles(n)%radius*2 &
781	particles(n)%weight_factor
782	s_r3 = s_r3 + particles(n)%radius*3 &
783	particles(n)%weight_factor
784	ENDIF
785	ENDDO
786
787	IF ( s_r2 > 0.0_wp ) rrtm_reliq(0,k) = s_r3 / s_r2
788
789	ENDIF
790
791	!
792	!-- Limit effective radius
793	IF ( rrtm_reliq(0,k) .GT. 0.0_wp ) THEN
794	rrtm_reliq(0,k) = MAX(rrtm_reliq(0,k),2.5_wp)
795	rrtm_reliq(0,k) = MIN(rrtm_reliq(0,k),60.0_wp)
796	ENDIF
797	ELSE
798	rrtm_icld = 0
799	ENDIF
800	ENDDO
801
802	!
803	!-- Set surface temperature
804	rrtm_tsfc = pt(nzb,j,i) * (surface_pressure / 1000.0_wp )**0.286_wp
805
806	IF ( lw_radiation ) THEN
807	CALL rrtmg_lw( 1, nzt_rad , rrtm_icld , rrtm_idrv ,&
808	rrtm_play , rrtm_plev , rrtm_tlay , rrtm_tlev ,&
809	rrtm_tsfc , rrtm_h2ovmr , rrtm_o3vmr , rrtm_co2vmr ,&
810	rrtm_ch4vmr , rrtm_n2ovmr , rrtm_o2vmr , rrtm_cfc11vmr ,&
811	rrtm_cfc12vmr , rrtm_cfc22vmr, rrtm_ccl4vmr , rrtm_emis ,&
812	rrtm_inflglw , rrtm_iceflglw, rrtm_liqflglw, rrtm_cldfr ,&
813	rrtm_lw_taucld , rrtm_cicewp , rrtm_cliqwp , rrtm_reice ,&
814	rrtm_reliq , rrtm_lw_tauaer, &
815	rrtm_lwuflx , rrtm_lwdflx , rrtm_lwhr , &
816	rrtm_lwuflxc , rrtm_lwdflxc , rrtm_lwhrc )
817
818	DO k = nzb, nzt+1
819	rad_lw_in(k,j,i) = rrtm_lwdflx(0,k)
820	rad_lw_out(k,j,i) = rrtm_lwuflx(0,k)
821	ENDDO
822
823
824	ENDIF
825
826	IF ( sw_radiation .AND. sun_up ) THEN
827	CALL rrtmg_sw( 1, nzt_rad , rrtm_icld , rrtm_iaer ,&
828	rrtm_play , rrtm_plev , rrtm_tlay , rrtm_tlev ,&
829	rrtm_tsfc , rrtm_h2ovmr , rrtm_o3vmr , rrtm_co2vmr ,&
830	rrtm_ch4vmr , rrtm_n2ovmr , rrtm_o2vmr , rrtm_asdir(:,j,i),&
831	rrtm_asdif(:,j,i), rrtm_aldir(:,j,i), rrtm_aldif(:,j,i), zenith,&
832	0.0_wp , day , solar_constant, rrtm_inflgsw,&
833	rrtm_iceflgsw , rrtm_liqflgsw, rrtm_cldfr , rrtm_sw_taucld ,&
834	rrtm_sw_ssacld , rrtm_sw_asmcld, rrtm_sw_fsfcld, rrtm_cicewp ,&
835	rrtm_cliqwp , rrtm_reice , rrtm_reliq , rrtm_sw_tauaer ,&
836	rrtm_sw_ssaaer , rrtm_sw_asmaer , rrtm_sw_ecaer , &
837	rrtm_swuflx , rrtm_swdflx , rrtm_swhr , &
838	rrtm_swuflxc , rrtm_swdflxc , rrtm_swhrc )
839
840	DO k = nzb, nzt+1
841	rad_sw_in(k,j,i) = rrtm_swdflx(0,k)
842	rad_sw_out(k,j,i) = rrtm_swuflx(0,k)
843	ENDDO
844	ENDIF
845
846	!
847	!-- Calculate surface net radiation
848	rad_net(j,i) = rad_sw_in(nzb,j,i) - rad_sw_out(nzb,j,i) &
849	+ rad_lw_in(nzb,j,i) - rad_lw_out(nzb,j,i)
850
851	ENDDO
852	ENDDO
853
854	CALL exchange_horiz( rad_lw_in, nbgp )
855	CALL exchange_horiz( rad_lw_out, nbgp )
856	CALL exchange_horiz( rad_sw_in, nbgp )
857	CALL exchange_horiz( rad_sw_out, nbgp )
858	CALL exchange_horiz_2d( rad_net, nbgp )
859	#endif
860
861	END SUBROUTINE radiation_rrtmg
862
863
864	!------------------------------------------------------------------------------!
865	! Description:
866	! ------------
867	!-- Calculate the cosine of the zenith angle (variable is called zenith)
868	!------------------------------------------------------------------------------!
869	SUBROUTINE calc_zenith
870
871	IMPLICIT NONE
872
873	REAL(wp) :: declination, & !: solar declination angle
874	hour_angle !: solar hour angle
875	!
876	!-- Calculate current day and time based on the initial values and simulation
877	!-- time
878	day = day_init + INT(FLOOR( (time_utc_init + time_since_reference_point) &
879	/ 86400.0_wp ), KIND=iwp)
880	time_utc = MOD((time_utc_init + time_since_reference_point), 86400.0_wp)
881
882
883	!
884	!-- Calculate solar declination and hour angle
885	declination = ASIN( decl_1 * SIN(decl_2 * REAL(day, KIND=wp) - decl_3) )
886	hour_angle = 2.0_wp * pi * (time_utc / 86400.0_wp) + lon - pi
887
888	!
889	!-- Calculate zenith angle
890	zenith(0) = SIN(lat) * SIN(declination) + COS(lat) * COS(declination) &
891	* COS(hour_angle)
892	zenith(0) = MAX(0.0_wp,zenith(0))
893
894	!
895	!-- Check if the sun is up (otheriwse shortwave calculations can be skipped)
896	IF ( zenith(0) .GT. 0.0_wp ) THEN
897	sun_up = .TRUE.
898	ELSE
899	sun_up = .FALSE.
900	END IF
901
902	END SUBROUTINE calc_zenith
903
904	#if defined ( __rrtmg ) && defined ( __netcdf )
905	!------------------------------------------------------------------------------!
906	! Description:
907	! ------------
908	!-- Calculates surface albedo components based on Briegleb (1992) and
909	!-- Briegleb et al. (1986)
910	!------------------------------------------------------------------------------!
911	SUBROUTINE calc_albedo
912
913	IMPLICIT NONE
914
915	IF ( sun_up ) THEN
916	!
917	!-- Ocean
918	IF ( albedo_type == 1 ) THEN
919	rrtm_aldir(0,:,:) = 0.026_wp / ( zenith(0)**1.7_wp + 0.065_wp ) &
920	+ 0.15_wp * ( zenith(0) - 0.1_wp ) &
921	* ( zenith(0) - 0.5_wp ) &
922	* ( zenith(0) - 1.0_wp )
923	rrtm_asdir(0,:,:) = rrtm_aldir(0,:,:)
924	!
925	!-- Snow
926	ELSEIF ( albedo_type == 16 ) THEN
927	IF ( zenith(0) < 0.5_wp ) THEN
928	rrtm_aldir(0,:,:) = 0.5_wp * (1.0_wp - aldif) &
929	* ( 3.0_wp / (1.0_wp + 4.0_wp &
930	* zenith(0))) - 1.0_wp
931	rrtm_asdir(0,:,:) = 0.5_wp * (1.0_wp - asdif) &
932	* ( 3.0_wp / (1.0_wp + 4.0_wp &
933	* zenith(0))) - 1.0_wp
934
935	rrtm_aldir(0,:,:) = MIN(0.98_wp, rrtm_aldir(0,:,:))
936	rrtm_asdir(0,:,:) = MIN(0.98_wp, rrtm_asdir(0,:,:))
937	ELSE
938	rrtm_aldir(0,:,:) = aldif
939	rrtm_asdir(0,:,:) = asdif
940	ENDIF
941	!
942	!-- Sea ice
943	ELSEIF ( albedo_type == 15 ) THEN
944	rrtm_aldir(0,:,:) = aldif
945	rrtm_asdir(0,:,:) = asdif
946	!
947	!-- Land surfaces
948	ELSE
949	SELECT CASE ( albedo_type )
950
951	!
952	!-- Surface types with strong zenith dependence
953	CASE ( 1, 2, 3, 4, 11, 12, 13 )
954	rrtm_aldir(0,:,:) = aldif * 1.4_wp / &
955	(1.0_wp + 0.8_wp * zenith(0))
956	rrtm_asdir(0,:,:) = asdif * 1.4_wp / &
957	(1.0_wp + 0.8_wp * zenith(0))
958	!
959	!-- Surface types with weak zenith dependence
960	CASE ( 5, 6, 7, 8, 9, 10, 14 )
961	rrtm_aldir(0,:,:) = aldif * 1.1_wp / &
962	(1.0_wp + 0.2_wp * zenith(0))
963	rrtm_asdir(0,:,:) = asdif * 1.1_wp / &
964	(1.0_wp + 0.2_wp * zenith(0))
965
966	CASE DEFAULT
967
968	END SELECT
969	ENDIF
970	!
971	!-- Diffusive albedo is taken from Table 2
972	rrtm_aldif(0,:,:) = aldif
973	rrtm_asdif(0,:,:) = asdif
974
975	ELSE
976
977	rrtm_aldir(0,:,:) = 0.0_wp
978	rrtm_asdir(0,:,:) = 0.0_wp
979	rrtm_aldif(0,:,:) = 0.0_wp
980	rrtm_asdif(0,:,:) = 0.0_wp
981	ENDIF
982	END SUBROUTINE calc_albedo
983
984	!------------------------------------------------------------------------------!
985	! Description:
986	! ------------
987	!-- Read sounding data (pressure and temperature) from RADIATION_DATA.
988	!------------------------------------------------------------------------------!
989	SUBROUTINE read_sounding_data
990
991	USE netcdf_control
992
993	IMPLICIT NONE
994
995	INTEGER(iwp) :: id, id_dim_zrad, id_var, k, nz_snd, nz_snd_start, nz_snd_end
996
997	REAL(wp) :: t_surface
998
999	REAL(wp), DIMENSION(:), ALLOCATABLE :: hyp_snd_tmp, t_snd_tmp
1000
1001	!
1002	!-- In case of updates, deallocate arrays first (sufficient to check one
1003	!-- array as the others are automatically allocated). This is required
1004	!-- because nzt_rad might change during the update
1005	IF ( ALLOCATED ( hyp_snd ) ) THEN
1006	DEALLOCATE( hyp_snd )
1007	DEALLOCATE( t_snd )
1008	DEALLOCATE( q_snd )
1009	DEALLOCATE ( rrtm_play )
1010	DEALLOCATE ( rrtm_plev )
1011	DEALLOCATE ( rrtm_tlay )
1012	DEALLOCATE ( rrtm_tlev )
1013	DEALLOCATE ( rrtm_h2ovmr )
1014	DEALLOCATE ( rrtm_cicewp )
1015	DEALLOCATE ( rrtm_cldfr )
1016	DEALLOCATE ( rrtm_cliqwp )
1017	DEALLOCATE ( rrtm_reice )
1018	DEALLOCATE ( rrtm_reliq )
1019	DEALLOCATE ( rrtm_lw_taucld )
1020	DEALLOCATE ( rrtm_lw_tauaer )
1021	DEALLOCATE ( rrtm_lwdflx )
1022	DEALLOCATE ( rrtm_lwuflx )
1023	DEALLOCATE ( rrtm_lwhr )
1024	DEALLOCATE ( rrtm_lwuflxc )
1025	DEALLOCATE ( rrtm_lwdflxc )
1026	DEALLOCATE ( rrtm_lwhrc )
1027	DEALLOCATE ( rrtm_sw_taucld )
1028	DEALLOCATE ( rrtm_sw_ssacld )
1029	DEALLOCATE ( rrtm_sw_asmcld )
1030	DEALLOCATE ( rrtm_sw_fsfcld )
1031	DEALLOCATE ( rrtm_sw_tauaer )
1032	DEALLOCATE ( rrtm_sw_ssaaer )
1033	DEALLOCATE ( rrtm_sw_asmaer )
1034	DEALLOCATE ( rrtm_sw_ecaer )
1035	DEALLOCATE ( rrtm_swdflx )
1036	DEALLOCATE ( rrtm_swuflx )
1037	DEALLOCATE ( rrtm_swhr )
1038	DEALLOCATE ( rrtm_swuflxc )
1039	DEALLOCATE ( rrtm_swdflxc )
1040	DEALLOCATE ( rrtm_swhrc )
1041	ENDIF
1042
1043	!
1044	!-- Open file for reading
1045	nc_stat = NF90_OPEN( rrtm_input_file, NF90_NOWRITE, id )
1046	CALL handle_netcdf_error( 'netcdf', 549 )
1047
1048	!
1049	!-- Inquire dimension of z axis and save in nz_snd
1050	nc_stat = NF90_INQ_DIMID( id, "Pressure", id_dim_zrad )
1051	nc_stat = NF90_INQUIRE_DIMENSION( id, id_dim_zrad, len = nz_snd )
1052	CALL handle_netcdf_error( 'netcdf', 551 )
1053
1054	!
1055	! !-- Allocate temporary array for storing pressure data
1056	ALLOCATE( hyp_snd_tmp(nzb+1:nz_snd) )
1057	hyp_snd_tmp = 0.0_wp
1058
1059
1060	!-- Read pressure from file
1061	nc_stat = NF90_INQ_VARID( id, "Pressure", id_var )
1062	nc_stat = NF90_GET_VAR( id, id_var, hyp_snd_tmp(:), start = (/1/), &
1063	count = (/nz_snd/) )
1064	CALL handle_netcdf_error( 'netcdf', 552 )
1065
1066	!
1067	!-- Allocate temporary array for storing temperature data
1068	ALLOCATE( t_snd_tmp(nzb+1:nz_snd) )
1069	t_snd_tmp = 0.0_wp
1070
1071	!
1072	!-- Read temperature from file
1073	nc_stat = NF90_INQ_VARID( id, "ReferenceTemperature", id_var )
1074	nc_stat = NF90_GET_VAR( id, id_var, t_snd_tmp(:), start = (/1/), &
1075	count = (/nz_snd/) )
1076	CALL handle_netcdf_error( 'netcdf', 553 )
1077
1078	!
1079	!-- Calculate start of sounding data
1080	nz_snd_start = nz_snd + 1
1081	nz_snd_end = nz_snd_end
1082
1083	!
1084	!-- Start filling vertical dimension at 10hPa above the model domain (hyp is
1085	!-- in Pa, hyp_snd in hPa).
1086	DO k = 1, nz_snd
1087	IF ( hyp_snd_tmp(k) .LT. (hyp(nzt+1) - 1000.0_wp) * 0.01_wp ) THEN
1088	nz_snd_start = k
1089	EXIT
1090	END IF
1091	END DO
1092
1093	IF ( nz_snd_start .LE. nz_snd ) THEN
1094	nz_snd_end = nz_snd - 1
1095	END IF
1096
1097
1098	!
1099	!-- Calculate of total grid points for RRTMG calculations
1100	nzt_rad = nzt + nz_snd_end - nz_snd_start + 2
1101
1102	!
1103	!-- Save data above LES domain in hyp_snd, t_snd and q_snd
1104	!-- Note: q_snd_tmp is not calculated at the moment (dry residual atmosphere)
1105	ALLOCATE( hyp_snd(nzb+1:nzt_rad) )
1106	ALLOCATE( t_snd(nzb+1:nzt_rad) )
1107	ALLOCATE( q_snd(nzb+1:nzt_rad) )
1108	hyp_snd = 0.0_wp
1109	t_snd = 0.0_wp
1110	q_snd = 0.0_wp
1111
1112	hyp_snd(nzt+2:nzt_rad) = hyp_snd_tmp(nz_snd_start:nz_snd_end)
1113	t_snd(nzt+2:nzt_rad) = t_snd_tmp(nz_snd_start:nz_snd_end)
1114
1115	DEALLOCATE ( hyp_snd_tmp )
1116	DEALLOCATE ( t_snd_tmp )
1117
1118	nc_stat = NF90_CLOSE( id )
1119
1120	!
1121	!-- Calculate pressure levels on zu and zw grid. Sounding data is added at
1122	!-- top of the LES domain. This routine does not consider horizontal or
1123	!-- vertical variability of pressure and temperature
1124	ALLOCATE ( rrtm_play(0:0,nzb+1:nzt_rad+1) )
1125	ALLOCATE ( rrtm_plev(0:0,nzb+1:nzt_rad+2) )
1126
1127	t_surface = pt_surface * (surface_pressure / 1000.0_wp )**0.286_wp
1128	DO k = nzb+1, nzt+1
1129	rrtm_play(0,k) = hyp(k) * 0.01_wp
1130	rrtm_plev(0,k) = surface_pressure * ( (t_surface - g/cp * zw(k-1)) / &
1131	t_surface )**(1.0_wp/0.286_wp)
1132	ENDDO
1133
1134	DO k = nzt+2, nzt_rad
1135	rrtm_play(0,k) = hyp_snd(k)
1136	rrtm_plev(0,k) = 0.5_wp * ( rrtm_play(0,k) + rrtm_play(0,k-1) )
1137	ENDDO
1138	rrtm_plev(0,nzt_rad+1) = MAX( 0.5 * hyp_snd(nzt_rad), &
1139	1.5 * hyp_snd(nzt_rad) &
1140	- 0.5 * hyp_snd(nzt_rad-1) )
1141	rrtm_plev(0,nzt_rad+2) = MIN( 1.0E-4_wp, &
1142	0.25_wp * rrtm_plev(0,nzt_rad+1) )
1143
1144	rrtm_play(0,nzt_rad+1) = 0.5 * rrtm_plev(0,nzt_rad+1)
1145
1146	!
1147	!-- Calculate temperature/humidity levels at top of the LES domain.
1148	!-- Currently, the temperature is taken from sounding data (might lead to a
1149	!-- temperature jump at interface. To do: Humidity is currently not
1150	!-- calculated above the LES domain.
1151	ALLOCATE ( rrtm_tlay(0:0,nzb+1:nzt_rad+1) )
1152	ALLOCATE ( rrtm_tlev(0:0,nzb+1:nzt_rad+2) )
1153	ALLOCATE ( rrtm_h2ovmr(0:0,nzb+1:nzt_rad+1) )
1154
1155	DO k = nzt+8, nzt_rad
1156	rrtm_tlay(0,k) = t_snd(k)
1157	rrtm_h2ovmr(0,k) = q_snd(k)
1158	ENDDO
1159	rrtm_tlay(0,nzt_rad+1) = 2.0_wp * rrtm_tlay(0,nzt_rad) &
1160	- rrtm_tlay(0,nzt_rad-1)
1161	DO k = nzt+9, nzt_rad+1
1162	rrtm_tlev(0,k) = rrtm_tlay(0,k-1) + (rrtm_tlay(0,k) &
1163	- rrtm_tlay(0,k-1)) &
1164	/ ( rrtm_play(0,k) - rrtm_play(0,k-1) ) &
1165	* ( rrtm_plev(0,k) - rrtm_play(0,k-1) )
1166	ENDDO
1167	rrtm_h2ovmr(0,nzt_rad+1) = rrtm_h2ovmr(0,nzt_rad)
1168
1169	rrtm_tlev(0,nzt_rad+2) = 2.0_wp * rrtm_tlay(0,nzt_rad+1) &
1170	- rrtm_tlev(0,nzt_rad)
1171	!
1172	!-- Allocate remaining RRTMG arrays
1173	ALLOCATE ( rrtm_cicewp(0:0,nzb+1:nzt_rad+1) )
1174	ALLOCATE ( rrtm_cldfr(0:0,nzb+1:nzt_rad+1) )
1175	ALLOCATE ( rrtm_cliqwp(0:0,nzb+1:nzt_rad+1) )
1176	ALLOCATE ( rrtm_reice(0:0,nzb+1:nzt_rad+1) )
1177	ALLOCATE ( rrtm_reliq(0:0,nzb+1:nzt_rad+1) )
1178	ALLOCATE ( rrtm_lw_taucld(1:nbndlw+1,0:0,nzb+1:nzt_rad+1) )
1179	ALLOCATE ( rrtm_lw_tauaer(0:0,nzb+1:nzt_rad+1,1:nbndlw+1) )
1180	ALLOCATE ( rrtm_sw_taucld(1:nbndsw+1,0:0,nzb+1:nzt_rad+1) )
1181	ALLOCATE ( rrtm_sw_ssacld(1:nbndsw+1,0:0,nzb+1:nzt_rad+1) )
1182	ALLOCATE ( rrtm_sw_asmcld(1:nbndsw+1,0:0,nzb+1:nzt_rad+1) )
1183	ALLOCATE ( rrtm_sw_fsfcld(1:nbndsw+1,0:0,nzb+1:nzt_rad+1) )
1184	ALLOCATE ( rrtm_sw_tauaer(0:0,nzb+1:nzt_rad+1,1:nbndsw+1) )
1185	ALLOCATE ( rrtm_sw_ssaaer(0:0,nzb+1:nzt_rad+1,1:nbndsw+1) )
1186	ALLOCATE ( rrtm_sw_asmaer(0:0,nzb+1:nzt_rad+1,1:nbndsw+1) )
1187	ALLOCATE ( rrtm_sw_ecaer(0:0,nzb+1:nzt_rad+1,1:naerec+1) )
1188
1189	!
1190	!-- The ice phase is currently not considered in PALM
1191	rrtm_cicewp = 0.0_wp
1192	rrtm_reice = 0.0_wp
1193
1194	!
1195	!-- Set other parameters (move to NAMELIST parameters in the future)
1196	rrtm_lw_tauaer = 0.0_wp
1197	rrtm_lw_taucld = 0.0_wp
1198	rrtm_sw_taucld = 0.0_wp
1199	rrtm_sw_ssacld = 0.0_wp
1200	rrtm_sw_asmcld = 0.0_wp
1201	rrtm_sw_fsfcld = 0.0_wp
1202	rrtm_sw_tauaer = 0.0_wp
1203	rrtm_sw_ssaaer = 0.0_wp
1204	rrtm_sw_asmaer = 0.0_wp
1205	rrtm_sw_ecaer = 0.0_wp
1206
1207
1208	ALLOCATE ( rrtm_swdflx(0:0,nzb:nzt_rad+1) )
1209	ALLOCATE ( rrtm_swuflx(0:0,nzb:nzt_rad+1) )
1210	ALLOCATE ( rrtm_swhr(0:0,nzb+1:nzt_rad+1) )
1211	ALLOCATE ( rrtm_swuflxc(0:0,nzb:nzt_rad+1) )
1212	ALLOCATE ( rrtm_swdflxc(0:0,nzb:nzt_rad+1) )
1213	ALLOCATE ( rrtm_swhrc(0:0,nzb+1:nzt_rad+1) )
1214
1215	rrtm_swdflx = 0.0_wp
1216	rrtm_swuflx = 0.0_wp
1217	rrtm_swhr = 0.0_wp
1218	rrtm_swuflxc = 0.0_wp
1219	rrtm_swdflxc = 0.0_wp
1220	rrtm_swhrc = 0.0_wp
1221
1222	ALLOCATE ( rrtm_lwdflx(0:0,nzb:nzt_rad+1) )
1223	ALLOCATE ( rrtm_lwuflx(0:0,nzb:nzt_rad+1) )
1224	ALLOCATE ( rrtm_lwhr(0:0,nzb+1:nzt_rad+1) )
1225	ALLOCATE ( rrtm_lwuflxc(0:0,nzb:nzt_rad+1) )
1226	ALLOCATE ( rrtm_lwdflxc(0:0,nzb:nzt_rad+1) )
1227	ALLOCATE ( rrtm_lwhrc(0:0,nzb+1:nzt_rad+1) )
1228
1229	rrtm_lwdflx = 0.0_wp
1230	rrtm_lwuflx = 0.0_wp
1231	rrtm_lwhr = 0.0_wp
1232	rrtm_lwuflxc = 0.0_wp
1233	rrtm_lwdflxc = 0.0_wp
1234	rrtm_lwhrc = 0.0_wp
1235
1236
1237	END SUBROUTINE read_sounding_data
1238
1239
1240	!------------------------------------------------------------------------------!
1241	! Description:
1242	! ------------
1243	!-- Read trace gas data from file
1244	!------------------------------------------------------------------------------!
1245	SUBROUTINE read_trace_gas_data
1246
1247	USE netcdf_control
1248	USE rrsw_ncpar
1249
1250	IMPLICIT NONE
1251
1252	INTEGER(iwp), PARAMETER :: num_trace_gases = 9 !: number of trace gases
1253
1254	CHARACTER(LEN=5), DIMENSION(num_trace_gases), PARAMETER :: &
1255	trace_names = (/'O3 ', 'CO2 ', 'CH4 ', 'N2O ', 'O2 ', &
1256	'CFC11', 'CFC12', 'CFC22', 'CCL4 '/)
1257
1258	INTEGER(iwp) :: id, k, m, n, nabs, np, id_abs, id_dim, id_var
1259
1260	REAL(wp) :: p_mls_l, p_mls_u, p_wgt_l, p_wgt_u, p_mls_m
1261
1262
1263	REAL(wp), DIMENSION(:), ALLOCATABLE :: p_mls, & !: pressure levels for the absorbers
1264	rrtm_play_tmp, & !: temporary array for pressure zu-levels
1265	rrtm_plev_tmp, & !: temporary array for pressure zw-levels
1266	trace_path_tmp !: temporary array for storing trace gas path data
1267
1268	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: trace_mls, & !: array for storing the absorber amounts
1269	trace_mls_path, & !: array for storing trace gas path data
1270	trace_mls_tmp !: temporary array for storing trace gas data
1271
1272
1273	!
1274	!-- In case of updates, deallocate arrays first (sufficient to check one
1275	!-- array as the others are automatically allocated)
1276	IF ( ALLOCATED ( rrtm_o3vmr ) ) THEN
1277	DEALLOCATE ( rrtm_o3vmr )
1278	DEALLOCATE ( rrtm_co2vmr )
1279	DEALLOCATE ( rrtm_ch4vmr )
1280	DEALLOCATE ( rrtm_n2ovmr )
1281	DEALLOCATE ( rrtm_o2vmr )
1282	DEALLOCATE ( rrtm_cfc11vmr )
1283	DEALLOCATE ( rrtm_cfc12vmr )
1284	DEALLOCATE ( rrtm_cfc22vmr )
1285	DEALLOCATE ( rrtm_ccl4vmr )
1286	ENDIF
1287
1288	!
1289	!-- Allocate trace gas profiles
1290	ALLOCATE ( rrtm_o3vmr(0:0,1:nzt_rad+1) )
1291	ALLOCATE ( rrtm_co2vmr(0:0,1:nzt_rad+1) )
1292	ALLOCATE ( rrtm_ch4vmr(0:0,1:nzt_rad+1) )
1293	ALLOCATE ( rrtm_n2ovmr(0:0,1:nzt_rad+1) )
1294	ALLOCATE ( rrtm_o2vmr(0:0,1:nzt_rad+1) )
1295	ALLOCATE ( rrtm_cfc11vmr(0:0,1:nzt_rad+1) )
1296	ALLOCATE ( rrtm_cfc12vmr(0:0,1:nzt_rad+1) )
1297	ALLOCATE ( rrtm_cfc22vmr(0:0,1:nzt_rad+1) )
1298	ALLOCATE ( rrtm_ccl4vmr(0:0,1:nzt_rad+1) )
1299
1300	!
1301	!-- Open file for reading
1302	nc_stat = NF90_OPEN( rrtm_input_file, NF90_NOWRITE, id )
1303	CALL handle_netcdf_error( 'netcdf', 549 )
1304	!
1305	!-- Inquire dimension ids and dimensions
1306	nc_stat = NF90_INQ_DIMID( id, "Pressure", id_dim )
1307	CALL handle_netcdf_error( 'netcdf', 550 )
1308	nc_stat = NF90_INQUIRE_DIMENSION( id, id_dim, len = np)
1309	CALL handle_netcdf_error( 'netcdf', 550 )
1310
1311	nc_stat = NF90_INQ_DIMID( id, "Absorber", id_dim )
1312	CALL handle_netcdf_error( 'netcdf', 550 )
1313	nc_stat = NF90_INQUIRE_DIMENSION( id, id_dim, len = nabs )
1314	CALL handle_netcdf_error( 'netcdf', 550 )
1315
1316
1317	!
1318	!-- Allocate pressure, and trace gas arrays
1319	ALLOCATE( p_mls(1:np) )
1320	ALLOCATE( trace_mls(1:num_trace_gases,1:np) )
1321	ALLOCATE( trace_mls_tmp(1:nabs,1:np) )
1322
1323
1324	nc_stat = NF90_INQ_VARID( id, "Pressure", id_var )
1325	CALL handle_netcdf_error( 'netcdf', 550 )
1326	nc_stat = NF90_GET_VAR( id, id_var, p_mls )
1327	CALL handle_netcdf_error( 'netcdf', 550 )
1328
1329	nc_stat = NF90_INQ_VARID( id, "AbsorberAmountMLS", id_var )
1330	CALL handle_netcdf_error( 'netcdf', 550 )
1331	nc_stat = NF90_GET_VAR( id, id_var, trace_mls_tmp )
1332	CALL handle_netcdf_error( 'netcdf', 550 )
1333
1334
1335	!
1336	!-- Write absorber amounts (mls) to trace_mls
1337	DO n = 1, num_trace_gases
1338	CALL getAbsorberIndex( TRIM( trace_names(n) ), id_abs )
1339
1340	trace_mls(n,1:np) = trace_mls_tmp(id_abs,1:np)
1341
1342	!
1343	!-- Replace missing values by zero
1344	WHERE ( trace_mls(n,:) > 2.0_wp )
1345	trace_mls(n,:) = 0.0_wp
1346	END WHERE
1347	END DO
1348
1349	DEALLOCATE ( trace_mls_tmp )
1350
1351	nc_stat = NF90_CLOSE( id )
1352	CALL handle_netcdf_error( 'netcdf', 551 )
1353
1354	!
1355	!-- Add extra pressure level for calculations of the trace gas paths
1356	ALLOCATE ( rrtm_play_tmp(1:nzt_rad+1) )
1357	ALLOCATE ( rrtm_plev_tmp(1:nzt_rad+2) )
1358
1359	rrtm_play_tmp(1:nzt_rad) = rrtm_play(0,1:nzt_rad)
1360	rrtm_plev_tmp(1:nzt_rad+1) = rrtm_plev(0,1:nzt_rad+1)
1361	rrtm_play_tmp(nzt_rad+1) = rrtm_plev(0,nzt_rad+1) * 0.5_wp
1362	rrtm_plev_tmp(nzt_rad+2) = MIN( 1.0E-4_wp, 0.25_wp &
1363	* rrtm_plev(0,nzt_rad+1) )
1364
1365	!
1366	!-- Calculate trace gas path (zero at surface) with interpolation to the
1367	!-- sounding levels
1368	ALLOCATE ( trace_mls_path(1:nzt_rad+2,1:num_trace_gases) )
1369
1370	trace_mls_path(nzb+1,:) = 0.0_wp
1371
1372	DO k = nzb+2, nzt_rad+2
1373	DO m = 1, num_trace_gases
1374	trace_mls_path(k,m) = trace_mls_path(k-1,m)
1375
1376	!
1377	!-- When the pressure level is higher than the trace gas pressure
1378	!-- level, assume that
1379	IF ( rrtm_plev_tmp(k-1) .GT. p_mls(1) ) THEN
1380
1381	trace_mls_path(k,m) = trace_mls_path(k,m) + trace_mls(m,1) &
1382	* ( rrtm_plev_tmp(k-1) &
1383	- MAX( p_mls(1), rrtm_plev_tmp(k) ) &
1384	) / g
1385	ENDIF
1386
1387	!
1388	!-- Integrate for each sounding level from the contributing p_mls
1389	!-- levels
1390	DO n = 2, np
1391	!
1392	!-- Limit p_mls so that it is within the model level
1393	p_mls_u = MIN( rrtm_plev_tmp(k-1), &
1394	MAX( rrtm_plev_tmp(k), p_mls(n) ) )
1395	p_mls_l = MIN( rrtm_plev_tmp(k-1), &
1396	MAX( rrtm_plev_tmp(k), p_mls(n-1) ) )
1397
1398	IF ( p_mls_l .GT. p_mls_u ) THEN
1399
1400	!
1401	!-- Calculate weights for interpolation
1402	p_mls_m = 0.5_wp * (p_mls_l + p_mls_u)
1403	p_wgt_u = (p_mls(n-1) - p_mls_m) / (p_mls(n-1) - p_mls(n))
1404	p_wgt_l = (p_mls_m - p_mls(n)) / (p_mls(n-1) - p_mls(n))
1405
1406	!
1407	!-- Add level to trace gas path
1408	trace_mls_path(k,m) = trace_mls_path(k,m) &
1409	+ ( p_wgt_u * trace_mls(m,n) &
1410	+ p_wgt_l * trace_mls(m,n-1) ) &
1411	* (p_mls_l + p_mls_u) / g
1412	ENDIF
1413	ENDDO
1414
1415	IF ( rrtm_plev_tmp(k) .LT. p_mls(np) ) THEN
1416	trace_mls_path(k,m) = trace_mls_path(k,m) + trace_mls(m,np) &
1417	* ( MIN( rrtm_plev_tmp(k-1), p_mls(np) ) &
1418	- rrtm_plev_tmp(k) &
1419	) / g
1420	ENDIF
1421	ENDDO
1422	ENDDO
1423
1424
1425	!
1426	!-- Prepare trace gas path profiles
1427	ALLOCATE ( trace_path_tmp(1:nzt_rad+1) )
1428
1429	DO m = 1, num_trace_gases
1430
1431	trace_path_tmp(1:nzt_rad+1) = ( trace_mls_path(2:nzt_rad+2,m) &
1432	- trace_mls_path(1:nzt_rad+1,m) ) * g &
1433	/ ( rrtm_plev_tmp(1:nzt_rad+1) &
1434	- rrtm_plev_tmp(2:nzt_rad+2) )
1435
1436	!
1437	!-- Save trace gas paths to the respective arrays
1438	SELECT CASE ( TRIM( trace_names(m) ) )
1439
1440	CASE ( 'O3' )
1441
1442	rrtm_o3vmr(0,:) = trace_path_tmp(:)
1443
1444	CASE ( 'CO2' )
1445
1446	rrtm_co2vmr(0,:) = trace_path_tmp(:)
1447
1448	CASE ( 'CH4' )
1449
1450	rrtm_ch4vmr(0,:) = trace_path_tmp(:)
1451
1452	CASE ( 'N2O' )
1453
1454	rrtm_n2ovmr(0,:) = trace_path_tmp(:)
1455
1456	CASE ( 'O2' )
1457
1458	rrtm_o2vmr(0,:) = trace_path_tmp(:)
1459
1460	CASE ( 'CFC11' )
1461
1462	rrtm_cfc11vmr(0,:) = trace_path_tmp(:)
1463
1464	CASE ( 'CFC12' )
1465
1466	rrtm_cfc12vmr(0,:) = trace_path_tmp(:)
1467
1468	CASE ( 'CFC22' )
1469
1470	rrtm_cfc22vmr(0,:) = trace_path_tmp(:)
1471
1472	CASE ( 'CCL4' )
1473
1474	rrtm_ccl4vmr(0,:) = trace_path_tmp(:)
1475
1476	CASE DEFAULT
1477
1478	END SELECT
1479
1480	ENDDO
1481
1482	DEALLOCATE ( trace_path_tmp )
1483	DEALLOCATE ( trace_mls_path )
1484	DEALLOCATE ( rrtm_play_tmp )
1485	DEALLOCATE ( rrtm_plev_tmp )
1486	DEALLOCATE ( trace_mls )
1487	DEALLOCATE ( p_mls )
1488
1489	END SUBROUTINE read_trace_gas_data
1490
1491	#endif
1492
1493
1494	!------------------------------------------------------------------------------!
1495	! Description:
1496	! ------------
1497	!-- Calculate temperature tendency due to radiative cooling/heating.
1498	!-- Cache-optimized version.
1499	!------------------------------------------------------------------------------!
1500	SUBROUTINE radiation_tendency_ij ( i, j, tend )
1501
1502	USE arrays_3d, &
1503	ONLY: dzw
1504
1505	USE cloud_parameters, &
1506	ONLY: pt_d_t, cp
1507
1508	USE control_parameters, &
1509	ONLY: rho_surface
1510
1511	IMPLICIT NONE
1512
1513	INTEGER(iwp) :: i, j, k
1514
1515	REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: tend
1516
1517	#if defined ( __rrtmg )
1518
1519	REAL(wp) :: rad_sw_net_l, rad_sw_net_u, rad_lw_net_l, rad_lw_net_u
1520
1521	rad_sw_net_l = 0.0_wp
1522	rad_sw_net_u = 0.0_wp
1523	rad_lw_net_l = 0.0_wp
1524	rad_lw_net_u = 0.0_wp
1525
1526	!
1527	!-- Calculate radiative flux divergence
1528	DO k = nzb+1, nzt+1
1529
1530	rad_sw_net_l = rad_sw_in(k-1,j,i) - rad_sw_out(k-1,j,i)
1531	rad_sw_net_u = rad_sw_in(k,j,i) - rad_sw_out(k,j,i)
1532	rad_lw_net_l = rad_lw_in(k-1,j,i) - rad_lw_out(k-1,j,i)
1533	rad_lw_net_u = rad_lw_in(k,j,i) - rad_lw_out(k,j,i)
1534
1535	tend(k,j,i) = tend(k,j,i) + ( rad_sw_net_u - rad_sw_net_l &
1536	+ rad_lw_net_u - rad_lw_net_l ) / &
1537	( dzw(k) * cp * rho_surface ) * pt_d_t(k)
1538	ENDDO
1539
1540	#endif
1541
1542	END SUBROUTINE radiation_tendency_ij
1543
1544
1545	!------------------------------------------------------------------------------!
1546	! Description:
1547	! ------------
1548	!-- Calculate temperature tendency due to radiative cooling/heating.
1549	!-- Vector-optimized version
1550	!------------------------------------------------------------------------------!
1551	SUBROUTINE radiation_tendency ( tend )
1552
1553	USE arrays_3d, &
1554	ONLY: dzw
1555
1556	USE cloud_parameters, &
1557	ONLY: pt_d_t, cp
1558
1559	USE indices, &
1560	ONLY: nxl, nxr, nyn, nys
1561
1562	USE control_parameters, &
1563	ONLY: rho_surface
1564
1565	IMPLICIT NONE
1566
1567	INTEGER(iwp) :: i, j, k
1568
1569	REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: tend
1570
1571	#if defined ( __rrtmg )
1572
1573	REAL(wp) :: rad_sw_net_l, rad_sw_net_u, rad_lw_net_l, rad_lw_net_u
1574
1575	rad_sw_net_l = 0.0_wp
1576	rad_sw_net_u = 0.0_wp
1577	rad_lw_net_l = 0.0_wp
1578	rad_lw_net_u = 0.0_wp
1579
1580	DO i = nxl, nxr
1581	DO j = nys, nyn
1582
1583	!
1584	!-- Calculate radiative flux divergence
1585	DO k = nzb+1, nzt+1
1586
1587	rad_sw_net_l = rad_sw_in(k-1,j,i) - rad_sw_out(k-1,j,i)
1588	rad_sw_net_u = rad_sw_in(k ,j,i) - rad_sw_out(k ,j,i)
1589	rad_lw_net_l = rad_lw_in(k-1,j,i) - rad_lw_out(k-1,j,i)
1590	rad_lw_net_u = rad_lw_in(k ,j,i) - rad_lw_out(k ,j,i)
1591
1592	tend(k,j,i) = tend(k,j,i) + ( rad_sw_net_u - rad_sw_net_l &
1593	+ rad_lw_net_u - rad_lw_net_l ) / &
1594	( dzw(k) * cp * rho_surface ) * pt_d_t(k)
1595	ENDDO
1596	ENDDO
1597	ENDDO
1598	#endif
1599
1600	END SUBROUTINE radiation_tendency
1601
1602	END MODULE radiation_model_mod

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