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source: palm/trunk/SOURCE/radiation_model.f90 @ 1586

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

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