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radiation_setup.F90 @ 4202

Last change on this file since 4202 was 4115, checked in by idelkadi, 3 years ago

Implementation of Ecrad in LMDZ (continued) :

Switch to the first call only in the configuration and initializations part of Ecrad
Added instructions for parallelization
Initializations

File size: 16.8 KB

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1	MODULE RADIATION_SETUP
2
3	! RADIATION_SETUP - Setting up modular radiation scheme
4	!
5	! (C) Copyright 2015- ECMWF.
6	!
7	! This software is licensed under the terms of the Apache Licence Version 2.0
8	! which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
9	!
10	! In applying this licence, ECMWF does not waive the privileges and immunities
11	! granted to it by virtue of its status as an intergovernmental organisation
12	! nor does it submit to any jurisdiction.
13	!
14	! PURPOSE
15	! -------
16	! The modular radiation scheme is contained in a separate
17	! library. SETUP_RADIATION_SCHEME in this module sets up a small
18	! number of global variables needed to store the information for it.
19	!
20	! Lower case is used for variables and types taken from the
21	! radiation library
22	!
23	! INTERFACE
24	! ---------
25	! SETUP_RADIATION_SCHEME is called from SUECRAD. The radiation
26	! scheme is actually run using the RADIATION_SCHEME routine (not in
27	! this module).
28	!
29	! AUTHOR
30	! ------
31	! Robin Hogan, ECMWF
32	! Original: 2015-09-16
33	!
34	! MODIFICATIONS
35	! -------------
36	!
37	!-----------------------------------------------------------------------
38
39	USE PARKIND1, ONLY : JPRB
40	USE radiation_config, ONLY : config_type, &
41	& ISolverMcICA, ISolverSpartacus, &
42	& ILiquidModelSlingo, ILiquidModelSOCRATES, &
43	& IIceModelFu, IIceModelBaran, &
44	& IOverlapExponentialRandom
45
46	IMPLICIT NONE
47
48	! Store configuration information for the radiation scheme in a
49	! global variable
50	type(config_type) :: rad_config
51
52	! Ultraviolet weightings
53	INTEGER :: NWEIGHT_UV
54	INTEGER :: IBAND_UV(100)
55	REAL(KIND=JPRB) :: WEIGHT_UV(100)
56	! Photosynthetically active radiation weightings
57	INTEGER :: NWEIGHT_PAR
58	INTEGER :: IBAND_PAR(100)
59	REAL(KIND=JPRB) :: WEIGHT_PAR(100)
60
61	! Background aerosol is specified in an ugly way: using the old
62	! Tegen fields that are in terms of optical depth, and converted to
63	! mass mixing ratio via the relevant mass-extinction coefficient
64	INTEGER, PARAMETER :: ITYPE_TROP_BG_AER = 8 ! hydrophobic organic
65	INTEGER, PARAMETER :: ITYPE_STRAT_BG_AER=12 ! non-absorbing sulphate
66	REAL(KIND=JPRB) :: TROP_BG_AER_MASS_EXT
67	REAL(KIND=JPRB) :: STRAT_BG_AER_MASS_EXT
68
69	CONTAINS
70
71	! This routine copies information between the IFS radiation
72	! configuration (stored in global variables) and the radiation
73	! configuration of the modular radiation scheme (stored in
74	! rad_config). The optional input logical LOUTPUT controls whether
75	! to print lots of information during the setup stage (default is
76	! no).
77	SUBROUTINE SETUP_RADIATION_SCHEME(LOUTPUT)
78
79	USE YOMHOOK, ONLY : LHOOK, DR_HOOK
80	! USE YOMLUN, ONLY : NULNAM, NULOUT, NULERR
81	USE YOMLUN, ONLY : NULOUT, NULERR
82	USE YOESRTWN, ONLY : NMPSRTM
83	! AI ATTENTION
84	! USE YOERAD, ONLY : YRERAD
85
86	USE radiation_interface, ONLY : setup_radiation
87	USE radiation_aerosol_optics, ONLY : dry_aerosol_sw_mass_extinction
88
89	!#include "posname.intfb.h"
90
91	! Whether or not to provide information on the radiation scheme
92	! configuration
93	LOGICAL, INTENT(IN), OPTIONAL :: LOUTPUT
94
95	! Verbosity of configuration information 0=none, 1=warning,
96	! 2=info, 3=progress, 4=detailed, 5=debug
97	INTEGER :: IVERBOSESETUP
98	INTEGER :: ISTAT
99
100	REAL(KIND=JPRB) :: ZHOOK_HANDLE
101
102	character(len=512) :: file_name
103
104	logical :: lprint_setp=.TRUE.
105
106	IF (LHOOK) CALL DR_HOOK('RADIATION_SETUP:SETUP_RADIATION_SCHEME',0,ZHOOK_HANDLE)
107
108	! * GENERAL SETUP *
109
110	! Configure verbosity of setup of radiation scheme
111
112	print,'******* Dans radiation_setup ***************'
113
114	IVERBOSESETUP = 4 ! Provide plenty of information
115	IF (PRESENT(LOUTPUT)) THEN
116	IF (.NOT. LOUTPUT) THEN
117	IVERBOSESETUP = 1 ! Warnings and errors only
118	ENDIF
119	ENDIF
120	rad_config%iverbosesetup = IVERBOSESETUP
121	if (lprint_setp) then
122	print*,'Dans radiation_setup '
123	print*,'rad_config%iverbosesetup =', rad_config%iverbosesetup
124	endif
125
126	IF (IVERBOSESETUP > 1) THEN
127	WRITE(NULOUT,'(a)') '-------------------------------------------------------------------------------'
128	WRITE(NULOUT,'(a)') 'RADIATION_SETUP'
129	ENDIF
130
131	! Normal operation of the radiation scheme displays only errors
132	! and warnings
133	rad_config%iverbose = 5
134	if (lprint_setp) then
135	print*,'rad_config%iverbose =', rad_config%iverbose
136	endif
137	! For the time being, ensure a valid default directory name
138	rad_config%directory_name = 'data'
139	if (lprint_setp) then
140	print*,'rad_config%directory_name =', rad_config%directory_name
141	endif
142
143	! Do we do Hogan and Bozzo (2014) approximate longwave updates?
144	! AI ATTENTION (ifs : )
145	! rad_config%do_lw_derivatives = YRERAD%LAPPROXLWUPDATE
146	rad_config%do_lw_derivatives = .false.
147	if (lprint_setp) then
148	print*,'rad_config%do_lw_derivatives =', rad_config%do_lw_derivatives
149	endif
150
151	! Surface spectral fluxes are needed for spectral shortwave albedo
152	! calculation
153	! AI ATTENTION test (ifs : T)
154	! rad_config%do_save_spectral_flux = .FALSE.
155	rad_config%do_surface_sw_spectral_flux = .TRUE.
156	if (lprint_setp) then
157	print*,'rad_config%do_surface_sw_spectral_flux =', &
158	rad_config%do_surface_sw_spectral_flux
159	endif
160
161	! * SETUP GAS OPTICS *
162
163	! Assume IFS has already set-up RRTM, so the setup_radiation
164	! routine below does not have to (ifs : F)
165	print*,'i_gas_model =',rad_config%i_gas_model
166	rad_config%do_setup_ifsrrtm = .TRUE.
167	if (lprint_setp) then
168	print*,'rad_config%do_setup_ifsrrtm =', rad_config%do_setup_ifsrrtm
169	endif
170
171	! * SETUP CLOUD OPTICS *
172
173	! Setup liquid optics
174	! AI ATTENTION
175	! Choix offline : liquid_model_name = "SOCRATES"
176	! IF (YRERAD%NLIQOPT == 2) THEN
177	! rad_config%i_liq_model = ILiquidModelSlingo
178	! ELSEIF (YRERAD%NLIQOPT == 3) THEN
179	rad_config%i_liq_model = ILiquidModelSOCRATES
180	if (lprint_setp) then
181	print*,'rad_config%i_liq_model =',rad_config%i_liq_model
182	endif
183
184	! ELSE
185	! WRITE(NULERR,'(a,i0)') 'Unavailable liquid optics model in modular radiation scheme: NLIQOPT=', &
186	! & YRERAD%NLIQOPT
187	! CALL ABOR1('RADIATION_SETUP: error interpreting NLIQOPT')
188	! ENDIF
189
190	! Setup ice optics
191	! Choix offline : ice_model_name = "Fu-IFS"
192	! IF (YRERAD%NICEOPT == 3) THEN
193	rad_config%i_ice_model = IIceModelFu
194	if (lprint_setp) then
195	print*,'rad_config%i_ice_model =', rad_config%i_ice_model
196	endif
197	! ELSEIF (YRERAD%NICEOPT == 4) THEN
198	! rad_config%i_ice_model = IIceModelBaran
199	! ELSE
200	! WRITE(NULERR,'(a,i0)') 'Unavailable ice optics model in modular radiation scheme: NICEOPT=', &
201	! & YRERAD%NICEOPT
202	! CALL ABOR1('RADIATION_SETUP: error interpreting NICEOPT')
203	! ENDIF
204
205	! For consistency with earlier versions of the IFS radiation
206	! scheme, we perform shortwave delta-Eddington scaling after the
207	! merge of the cloud, aerosol and gas optical properties. Set
208	! this to "false" to do the scaling on the cloud and aerosol
209	! properties separately before merging with gases. Note that this
210	! is not compatible with the SPARTACUS solver.
211	rad_config%do_sw_delta_scaling_with_gases = .FALSE.
212	if (lprint_setp) then
213	print*,'rad_config%do_sw_delta_scaling_with_gases =', &
214	rad_config%do_sw_delta_scaling_with_gases
215	endif
216
217	! Use Exponential-Exponential cloud overlap to match original IFS
218	! implementation of Raisanen cloud generator
219	rad_config%i_overlap_scheme = IOverlapExponentialRandom
220	if (lprint_setp) then
221	print*,'rad_config%i_overlap_scheme =', rad_config%i_overlap_scheme
222	endif
223
224	! * SETUP AEROSOLS *
225	! AI ATTENTION
226	! rad_config%use_aerosols = .TRUE. !(ifs)
227	rad_config%use_aerosols = .FALSE.
228	if (lprint_setp) then
229	print*,'rad_config%use_aerosols =', rad_config%use_aerosols
230	endif
231
232	! IF (YRERAD%NAERMACC > 0) THEN
233	! Using MACC climatology - in this case the aerosol optics file
234	! will be chosen automatically
235
236	! 12 IFS aerosol classes: 1-3 Sea salt, 4-6 Boucher desert dust,
237	! 7 hydrophilic organics, 8 hydrophobic organics, 9&10
238	! hydrophobic black carbon, 11 ammonium sulphate, 12 inactive
239	! SO2
240	rad_config%n_aerosol_types = 12
241	if (lprint_setp) then
242	print*,'rad_config%n_aerosol_types =', rad_config%n_aerosol_types
243	endif
244
245	! Indices to the aerosol optical properties in
246	! aerosol_ifs_rrtm_*.nc, for each class, where negative numbers
247	! index hydrophilic aerosol types and positive numbers index
248	! hydrophobic aerosol types
249	rad_config%i_aerosol_type_map = 0 ! There can be up to 256 types
250	! if (lprint_setp) then
251	! print*,'rad_config%i_aerosol_type_map =', rad_config%i_aerosol_type_map
252	! endif
253
254	rad_config%i_aerosol_type_map(1:12) = (/ &
255	& -1, & ! Sea salt, size bin 1 (OPAC)
256	& -2, & ! Sea salt, size bin 2 (OPAC)
257	& -3, & ! Sea salt, size bin 3 (OPAC)
258	& 7, & ! Desert dust, size bin 1 (Woodward 2001)
259	& 8, & ! Desert dust, size bin 2 (Woodward 2001)
260	& 9, & ! Desert dust, size bin 3 (Woodward 2001)
261	& -4, & ! Hydrophilic organic matter (OPAC)
262	& 10, & ! Hydrophobic organic matter (OPAC)
263	& 11, & ! Black carbon (Boucher)
264	& 11, & ! Black carbon (Boucher)
265	& -5, & ! Ammonium sulphate (OPAC)
266	& 14 /) ! Stratospheric sulphate (hand edited from OPAC)
267	! if (lprint_setp) then
268	! print*,'rad_config%i_aerosol_type_map =', rad_config%i_aerosol_type_map
269	! endif
270
271	! Background aerosol mass-extinction coefficients are obtained
272	! after the configuration files have been read - see later in
273	! this routine.
274
275	! ELSE
276	! Using Tegen climatology
277	! rad_config%n_aerosol_types = 6
278	! rad_config%i_aerosol_type_map = 0 ! There can be up to 256 types
279	! rad_config%i_aerosol_type_map(1:6) = (/ &
280	! & 1, & ! Continental background
281	! & 2, & ! Maritime
282	! & 3, & ! Desert
283	! & 4, & ! Urban
284	! & 5, & ! Volcanic active
285	! & 6 /) ! Stratospheric background
286
287	! Manually set the aerosol optics file name (the directory will
288	! be added automatically)
289	! rad_config%aerosol_optics_override_file_name = 'aerosol_ifs_rrtm_tegen.nc'
290	! ENDIF
291
292	! * SETUP SOLVER *
293
294	! 3D effects are off by default (ifs)
295	rad_config%do_3d_effects = .TRUE.
296	if (lprint_setp) then
297	print*,'rad_config%do_3d_effects=', rad_config%do_3d_effects
298	endif
299
300	! Select longwave solver
301	! AI ATTENTION
302	! SELECT CASE (YRERAD%NLWSOLVER)
303	! CASE(0)
304	! rad_config%i_solver_lw = ISolverMcICA
305	! CASE(1)
306	rad_config%i_solver_lw = ISolverSpartacus
307	if (lprint_setp) then
308	print*,'rad_config%i_solver_lw =', rad_config%i_solver_lw
309	endif
310
311	! CASE(2)
312	! rad_config%i_solver_lw = ISolverSpartacus
313	! rad_config%do_3d_effects = .TRUE.
314	! CASE DEFAULT
315	! WRITE(NULERR,'(a,i0)') 'Unknown value for NLWSOLVER: ', YRERAD%NLWSOLVER
316	! CALL ABOR1('RADIATION_SETUP: error interpreting NLWSOLVER')
317	! END SELECT
318
319	! Select shortwave solver
320	! SELECT CASE (YRERAD%NSWSOLVER)
321	! CASE(0)
322	! rad_config%i_solver_sw = ISolverMcICA
323	! CASE(1)
324	rad_config%i_solver_sw = ISolverSpartacus
325	if (lprint_setp) then
326	print*,'rad_config%i_solver_sw =', rad_config%i_solver_sw
327	endif
328
329	! rad_config%do_3d_effects = .FALSE.
330	! IF (YRERAD%NLWSOLVER == 2) THEN
331	! CALL ABOR1('RADIATION_SETUP: cannot represent 3D effects in LW but not SW')
332	! ENDIF
333	! CASE(2)
334	! rad_config%i_solver_sw = ISolverSpartacus
335	! rad_config%do_3d_effects = .TRUE.
336	! IF (YRERAD%NLWSOLVER == 1) THEN
337	! CALL ABOR1('RADIATION_SETUP: cannot represent 3D effects in SW but not LW')
338	! ENDIF
339	! CASE DEFAULT
340	! WRITE(NULERR,'(a,i0)') 'Unknown value for NSWSOLVER: ', YRERAD%NSWSOLVER
341	! CALL ABOR1('RADIATION_SETUP: error interpreting NSWSOLVER')
342	! END SELECT
343
344	! SPARTACUS solver requires delta scaling to be done separately
345	! for clouds & aerosols
346	IF (rad_config%i_solver_sw == ISolverSpartacus) THEN
347	rad_config%do_sw_delta_scaling_with_gases = .FALSE.
348	ENDIF
349
350	! Do we represent longwave scattering?
351	rad_config%do_lw_cloud_scattering = .TRUE.
352	rad_config%do_lw_aerosol_scattering = .TRUE.
353	if (lprint_setp) then
354	print*,'rad_config%do_lw_cloud_scattering =', &
355	rad_config%do_lw_cloud_scattering
356	print*,'rad_config%do_lw_aerosol_scattering =', &
357	rad_config%do_lw_aerosol_scattering
358	endif
359
360	! SELECT CASE (YRERAD%NLWSCATTERING)
361	! CASE(1)
362	! rad_config%do_lw_cloud_scattering = .TRUE.
363	! CASE(2)
364	! rad_config%do_lw_cloud_scattering = .TRUE.
365	! IF (YRERAD%NAERMACC > 0) THEN
366	! Tegen climatology omits data required to do longwave
367	! scattering by aerosols, so only turn this on with a more
368	! recent scattering database
369	! ENDIF
370	! END SELECT
371
372
373	! * IMPLEMENT SETTINGS *
374
375	! For advanced configuration, the configuration data for the
376	! "radiation" project can specified directly in the namelist.
377	! However, the variable naming convention is not consistent with
378	! the rest of the IFS. For basic configuration there are specific
379	! variables in the NAERAD namelist available in the YRERAD
380	! structure.
381	! CALL POSNAME(NULNAM, 'RADIATION', ISTAT)
382	! SELECT CASE (ISTAT)
383	! CASE(0)
384	! CALL rad_config%read(unit=NULNAM)
385	! CASE(1)
386	! WRITE(NULOUT,'(a)') 'Namelist RADIATION not found, using settings from NAERAD only'
387	! CASE DEFAULT
388	! CALL ABOR1('RADIATION_SETUP: error reading RADIATION section of namelist file')
389	! END SELECT
390
391	! AI ATTENTION test
392	file_name="namelist_ecrad"
393	call rad_config%read(file_name=file_name)
394
395	! Print configuration
396	! IF (IVERBOSESETUP > 1) THEN
397	! WRITE(NULOUT,'(a)') 'Radiation scheme settings:'
398	! CALL rad_config%print(IVERBOSE=IVERBOSESETUP)
399	! ENDIF
400
401	! Use configuration data to set-up radiation scheme, including
402	! reading scattering datafiles
403	CALL setup_radiation(rad_config)
404
405	! Populate the mapping between the 14 RRTM shortwave bands and the
406	! 6 albedo inputs. The mapping according to the stated wavelength
407	! ranges of the 6-band model does not match the hard-wired mapping
408	! in NMPSRTM, but only the hard-wired values produce sensible
409	! results...
410	! Note that NMPSRTM(:)=(/ 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 1, 6 /)
411	! AI
412	!! NMPSRTM(:)=(/ 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 1, 6 /)
413	!! rad_config%i_albedo_from_band_sw = NMPSRTM
414	! call rad_config%define_sw_albedo_intervals(6, &
415	! & (/ 0.25e-6_jprb, 0.44e-6_jprb, 1.19e-6_jprb, &
416	! & 2.38e-6_jprb, 4.00e-6_jprb /), (/ 1,2,3,4,5,6 /))
417	call rad_config%define_sw_albedo_intervals(6, &
418	& [0.25e-6_jprb, 0.44e-6_jprb, 0.69e-6_jprb, &
419	& 1.19e-6_jprb, 2.38e-6_jprb], [1,2,3,4,5,6])
420	! Likewise between the 16 RRTM longwave bands and the 2 emissivity
421	! inputs (info taken from rrtm_ecrt_140gp_mcica.F90) representing
422	! outside and inside the window region of the spectrum
423	! rad_config%i_emiss_from_band_lw = (/ 1,1,1,1,1,2,2,2,1,1,1,1,1,1,1,1 /)
424	! AI
425	!! call rad_config%define_lw_emiss_intervals(3, &
426	!! & (/ 8.0e-6_jprb,13.0e-6_jprb /), (/ 1,2,1 /))
427
428	! ! Get spectral weightings for UV and PAR
429	call rad_config%get_sw_weights(0.2e-6_jprb, 0.4415e-6_jprb, &
430	& NWEIGHT_UV, IBAND_UV, WEIGHT_UV, 'ultraviolet')
431	call rad_config%get_sw_weights(0.4e-6_jprb, 0.7e-6_jprb, &
432	& NWEIGHT_PAR, IBAND_PAR, WEIGHT_PAR, &
433	& 'photosynthetically active radiation, PAR')
434
435	! IF (YRERAD%NAERMACC > 0) THEN
436	! With the MACC aerosol climatology we need to add in the
437	! background aerosol afterwards using the Tegen arrays. In this
438	! case we first configure the background aerosol mass-extinction
439	! coefficient at 550 nm, which corresponds to the 10th RRTMG
440	! shortwave band.
441	! TROP_BG_AER_MASS_EXT = dry_aerosol_sw_mass_extinction(rad_config, &
442	! & ITYPE_TROP_BG_AER, 10)
443	! STRAT_BG_AER_MASS_EXT = dry_aerosol_sw_mass_extinction(rad_config, &
444	! & ITYPE_STRAT_BG_AER, 10)
445
446	! WRITE(NULOUT,'(a,i0)') 'Tropospheric bacground uses aerosol type ', &
447	! & ITYPE_TROP_BG_AER
448	! WRITE(NULOUT,'(a,i0)') 'Stratospheric bacground uses aerosol type ', &
449	! & ITYPE_STRAT_BG_AER
450	! ENDIF
451
452	IF (IVERBOSESETUP > 1) THEN
453	WRITE(NULOUT,'(a)') '-------------------------------------------------------------------------------'
454	ENDIF
455
456	IF (LHOOK) CALL DR_HOOK('RADIATION_SETUP:SETUP_RADIATION_SCHEME',1,ZHOOK_HANDLE)
457
458	END SUBROUTINE SETUP_RADIATION_SCHEME
459
460	END MODULE RADIATION_SETUP

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