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source: palm/trunk/SOURCE/radiation_model.f90 @ 1704

Last change on this file since 1704 was 1702, checked in by maronga, 9 years ago
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[1682]	1	!> @file radiation_model.f90
[1496]	2	!--------------------------------------------------------------------------------!
	3	! This file is part of PALM.
	4	!
	5	! PALM is free software: you can redistribute it and/or modify it under the terms
	6	! of the GNU General Public License as published by the Free Software Foundation,
	7	! either version 3 of the License, or (at your option) any later version.
	8	!
	9	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
	10	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
	11	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
	12	!
	13	! You should have received a copy of the GNU General Public License along with
	14	! PALM. If not, see <http://www.gnu.org/licenses/>.
	15	!
[1585]	16	! Copyright 1997-2015 Leibniz Universitaet Hannover
[1496]	17	!--------------------------------------------------------------------------------!
	18	!
	19	! Current revisions:
	20	! -----------------
	21	!
[1702]	22	!
[1496]	23	! Former revisions:
	24	! -----------------
	25	! $Id: radiation_model.f90 1702 2015-11-02 07:44:12Z raasch $
	26	!
[1702]	27	! 1701 2015-11-02 07:43:04Z maronga
	28	! Bugfixes: wrong index for output of timeseries, setting of nz_snd_end
	29	!
[1692]	30	! 1691 2015-10-26 16:17:44Z maronga
	31	! Added option for spin-up runs without radiation (skip_time_do_radiation). Bugfix
	32	! in calculation of pressure profiles. Bugfix in calculation of trace gas profiles.
	33	! Added output of radiative heating rates.
	34	!
[1683]	35	! 1682 2015-10-07 23:56:08Z knoop
	36	! Code annotations made doxygen readable
	37	!
[1607]	38	! 1606 2015-06-29 10:43:37Z maronga
	39	! Added preprocessor directive __netcdf to allow for compiling without netCDF.
	40	! Note, however, that RRTMG cannot be used without netCDF.
	41	!
[1591]	42	! 1590 2015-05-08 13:56:27Z maronga
	43	! Bugfix: definition of character strings requires same length for all elements
	44	!
[1588]	45	! 1587 2015-05-04 14:19:01Z maronga
	46	! Added albedo class for snow
	47	!
[1586]	48	! 1585 2015-04-30 07:05:52Z maronga
	49	! Added support for RRTMG
	50	!
[1572]	51	! 1571 2015-03-12 16:12:49Z maronga
	52	! Added missing KIND attribute. Removed upper-case variable names
	53	!
[1552]	54	! 1551 2015-03-03 14:18:16Z maronga
	55	! Added support for data output. Various variables have been renamed. Added
	56	! interface for different radiation schemes (currently: clear-sky, constant, and
	57	! RRTM (not yet implemented).
	58	!
[1497]	59	! 1496 2014-12-02 17:25:50Z maronga
	60	! Initial revision
	61	!
[1496]	62	!
	63	! Description:
	64	! ------------
[1682]	65	!> Radiation models and interfaces
	66	!> @todo move variable definitions used in init_radiation only to the subroutine
	67	!> as they are no longer required after initialization.
	68	!> @todo Output of full column vertical profiles used in RRTMG
	69	!> @todo Output of other rrtm arrays (such as volume mixing ratios)
	70	!> @todo Adapt for use with topography
	71	!>
	72	!> @note Many variables have a leading dummy dimension (0:0) in order to
	73	!> match the assume-size shape expected by the RRTMG model.
[1496]	74	!------------------------------------------------------------------------------!
[1682]	75	MODULE radiation_model_mod
	76
[1496]	77
	78	USE arrays_3d, &
[1691]	79	ONLY: dzw, hyp, pt, q, ql, zw
[1496]	80
[1585]	81	USE cloud_parameters, &
[1691]	82	ONLY: cp, l_d_cp, nc_const, rho_l, sigma_gc
[1585]	83
	84	USE constants, &
	85	ONLY: pi
	86
[1496]	87	USE control_parameters, &
[1585]	88	ONLY: cloud_droplets, cloud_physics, g, initializing_actions, &
[1691]	89	large_scale_forcing, lsf_surf, phi, pt_surface, rho_surface, &
[1585]	90	surface_pressure, time_since_reference_point
[1496]	91
	92	USE indices, &
[1585]	93	ONLY: nxl, nxlg, nxr, nxrg, nyn, nyng, nys, nysg, nzb_s_inner, nzb, nzt
[1496]	94
	95	USE kinds
	96
[1606]	97	#if defined ( __netcdf )
[1585]	98	USE netcdf
[1606]	99	#endif
[1585]	100
[1551]	101	USE netcdf_control, &
	102	ONLY: dots_label, dots_num, dots_unit
[1496]	103
[1585]	104	#if defined ( __rrtmg )
	105	USE parrrsw, &
	106	ONLY: naerec, nbndsw
[1551]	107
[1585]	108	USE parrrtm, &
	109	ONLY: nbndlw
	110
	111	USE rrtmg_lw_init, &
	112	ONLY: rrtmg_lw_ini
	113
	114	USE rrtmg_sw_init, &
	115	ONLY: rrtmg_sw_ini
	116
	117	USE rrtmg_lw_rad, &
	118	ONLY: rrtmg_lw
	119
	120	USE rrtmg_sw_rad, &
	121	ONLY: rrtmg_sw
	122	#endif
	123
	124
	125
[1496]	126	IMPLICIT NONE
	127
[1585]	128	CHARACTER(10) :: radiation_scheme = 'clear-sky' ! 'constant', 'clear-sky', or 'rrtmg'
[1551]	129
[1585]	130	!
	131	!-- Predefined Land surface classes (albedo_type) after Briegleb (1992)
[1590]	132	CHARACTER(37), DIMENSION(0:16), PARAMETER :: albedo_type_name = (/ &
	133	'user defined ', & ! 0
	134	'ocean ', & ! 1
	135	'mixed farming, tall grassland ', & ! 2
	136	'tall/medium grassland ', & ! 3
	137	'evergreen shrubland ', & ! 4
	138	'short grassland/meadow/shrubland ', & ! 5
	139	'evergreen needleleaf forest ', & ! 6
	140	'mixed deciduous evergreen forest ', & ! 7
	141	'deciduous forest ', & ! 8
	142	'tropical evergreen broadleaved forest', & ! 9
	143	'medium/tall grassland/woodland ', & ! 10
	144	'desert, sandy ', & ! 11
	145	'desert, rocky ', & ! 12
	146	'tundra ', & ! 13
	147	'land ice ', & ! 14
	148	'sea ice ', & ! 15
	149	'snow ' & ! 16
[1585]	150	/)
[1496]	151
[1682]	152	INTEGER(iwp) :: albedo_type = 5, & !< Albedo surface type (default: short grassland)
	153	day, & !< current day of the year
	154	day_init = 172, & !< day of the year at model start (21/06)
	155	dots_rad = 0 !< starting index for timeseries output
[1496]	156
	157
	158
[1585]	159
	160
	161
[1691]	162	LOGICAL :: constant_albedo = .FALSE., & !< flag parameter indicating whether the albedo may change depending on zenith
	163	force_radiation_call = .FALSE., & !< flag parameter for unscheduled radiation calls
	164	lw_radiation = .TRUE., & !< flag parameter indicing whether longwave radiation shall be calculated
	165	radiation = .FALSE., & !< flag parameter indicating whether the radiation model is used
	166	sun_up = .TRUE., & !< flag parameter indicating whether the sun is up or down
	167	sw_radiation = .TRUE. !< flag parameter indicing whether shortwave radiation shall be calculated
[1585]	168
[1496]	169
[1691]	170	REAL(wp), PARAMETER :: d_seconds_hour = 0.000277777777778_wp, & !< inverse of seconds per hour (1/3600)
	171	d_hours_day = 0.0416666666667_wp, & !< inverse of hours per day (1/24)
	172	sigma_sb = 5.67037321E-8_wp, & !< Stefan-Boltzmann constant
	173	solar_constant = 1368.0_wp !< solar constant at top of atmosphere
[1585]	174
[1691]	175	REAL(wp) :: albedo = 9999999.9_wp, & !< NAMELIST alpha
	176	albedo_lw_dif = 9999999.9_wp, & !< NAMELIST aldif
	177	albedo_lw_dir = 9999999.9_wp, & !< NAMELIST aldir
	178	albedo_sw_dif = 9999999.9_wp, & !< NAMELIST asdif
	179	albedo_sw_dir = 9999999.9_wp, & !< NAMELIST asdir
	180	decl_1, & !< declination coef. 1
	181	decl_2, & !< declination coef. 2
	182	decl_3, & !< declination coef. 3
	183	dt_radiation = 0.0_wp, & !< radiation model timestep
	184	emissivity = 0.98_wp, & !< NAMELIST surface emissivity
	185	lambda = 0.0_wp, & !< longitude in degrees
	186	lon = 0.0_wp, & !< longitude in radians
	187	lat = 0.0_wp, & !< latitude in radians
	188	net_radiation = 0.0_wp, & !< net radiation at surface
	189	skip_time_do_radiation = 0.0_wp, & !< Radiation model is not called before this time
	190	sky_trans, & !< sky transmissivity
	191	time_radiation = 0.0_wp, & !< time since last call of radiation code
	192	time_utc, & !< current time in UTC
	193	time_utc_init = 43200.0_wp !< UTC time at model start (noon)
	194
[1682]	195	REAL(wp), DIMENSION(0:0) :: zenith !< solar zenith angle
[1585]	196
[1496]	197	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: &
[1682]	198	alpha, & !< surface broadband albedo (used for clear-sky scheme)
	199	rad_net, & !< net radiation at the surface
	200	rad_net_av !< average of rad_net
[1496]	201
[1585]	202	!
	203	!-- Land surface albedos for solar zenith angle of 60Â° after Briegleb (1992)
	204	!-- (shortwave, longwave, broadband): sw, lw, bb,
[1587]	205	REAL(wp), DIMENSION(0:2,1:16), PARAMETER :: albedo_pars = RESHAPE( (/&
[1585]	206	0.06_wp, 0.06_wp, 0.06_wp, & ! 1
	207	0.09_wp, 0.28_wp, 0.19_wp, & ! 2
	208	0.11_wp, 0.33_wp, 0.23_wp, & ! 3
	209	0.11_wp, 0.33_wp, 0.23_wp, & ! 4
	210	0.14_wp, 0.34_wp, 0.25_wp, & ! 5
	211	0.06_wp, 0.22_wp, 0.14_wp, & ! 6
	212	0.06_wp, 0.27_wp, 0.17_wp, & ! 7
	213	0.06_wp, 0.31_wp, 0.19_wp, & ! 8
	214	0.06_wp, 0.22_wp, 0.14_wp, & ! 9
	215	0.06_wp, 0.28_wp, 0.18_wp, & ! 10
	216	0.35_wp, 0.51_wp, 0.43_wp, & ! 11
	217	0.24_wp, 0.40_wp, 0.32_wp, & ! 12
	218	0.10_wp, 0.27_wp, 0.19_wp, & ! 13
	219	0.90_wp, 0.65_wp, 0.77_wp, & ! 14
[1587]	220	0.90_wp, 0.65_wp, 0.77_wp, & ! 15
	221	0.95_wp, 0.70_wp, 0.82_wp & ! 16
	222	/), (/ 3, 16 /) )
[1496]	223
[1585]	224	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE, TARGET :: &
[1691]	225	rad_lw_cs_hr, & !< longwave clear sky radiation heating rate (K/s)
	226	rad_lw_cs_hr_av, & !< average of rad_lw_cs_hr
	227	rad_lw_hr, & !< longwave radiation heating rate (K/s)
	228	rad_lw_hr_av, & !< average of rad_sw_hr
	229	rad_lw_in, & !< incoming longwave radiation (W/m2)
	230	rad_lw_in_av, & !< average of rad_lw_in
	231	rad_lw_out, & !< outgoing longwave radiation (W/m2)
	232	rad_lw_out_av, & !< average of rad_lw_out
	233	rad_sw_cs_hr, & !< shortwave clear sky radiation heating rate (K/s)
	234	rad_sw_cs_hr_av, & !< average of rad_sw_cs_hr
	235	rad_sw_hr, & !< shortwave radiation heating rate (K/s)
	236	rad_sw_hr_av, & !< average of rad_sw_hr
[1682]	237	rad_sw_in, & !< incoming shortwave radiation (W/m2)
	238	rad_sw_in_av, & !< average of rad_sw_in
	239	rad_sw_out, & !< outgoing shortwave radiation (W/m2)
[1691]	240	rad_sw_out_av !< average of rad_sw_out
[1585]	241
[1691]	242
[1585]	243	!
	244	!-- Variables and parameters used in RRTMG only
	245	#if defined ( __rrtmg )
[1682]	246	CHARACTER(LEN=12) :: rrtm_input_file = "RAD_SND_DATA" !< name of the NetCDF input file (sounding data)
[1585]	247
	248
	249	!
	250	!-- Flag parameters for RRTMGS (should not be changed)
[1682]	251	INTEGER(iwp), PARAMETER :: rrtm_inflglw = 2, & !< flag for lw cloud optical properties (0,1,2)
	252	rrtm_iceflglw = 0, & !< flag for lw ice particle specifications (0,1,2,3)
	253	rrtm_liqflglw = 1, & !< flag for lw liquid droplet specifications
	254	rrtm_inflgsw = 2, & !< flag for sw cloud optical properties (0,1,2)
	255	rrtm_iceflgsw = 0, & !< flag for sw ice particle specifications (0,1,2,3)
	256	rrtm_liqflgsw = 1 !< flag for sw liquid droplet specifications
[1585]	257
	258	!
	259	!-- The following variables should be only changed with care, as this will
	260	!-- require further setting of some variables, which is currently not
	261	!-- implemented (aerosols, ice phase).
[1682]	262	INTEGER(iwp) :: nzt_rad, & !< upper vertical limit for radiation calculations
	263	rrtm_icld = 0, & !< cloud flag (0: clear sky column, 1: cloudy column)
	264	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)
[1691]	265	rrtm_idrv = 1 !< longwave upward flux calculation option (0,1)
[1585]	266
[1682]	267	LOGICAL :: snd_exists = .FALSE. !< flag parameter to check whether a user-defined input files exists
[1585]	268
[1691]	269	REAL(wp), PARAMETER :: mol_mass_air_d_wv = 1.607793_wp !< molecular weight dry air / water vapor
[1585]	270
[1682]	271	REAL(wp), DIMENSION(:), ALLOCATABLE :: hyp_snd, & !< hypostatic pressure from sounding data (hPa)
	272	q_snd, & !< specific humidity from sounding data (kg/kg) - dummy at the moment
	273	rrtm_tsfc, & !< dummy array for storing surface temperature
	274	t_snd !< actual temperature from sounding data (hPa)
[1585]	275
[1691]	276	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: aldif, & !< longwave diffuse albedo solar angle of 60Â°
	277	aldir, & !< longwave direct albedo solar angle of 60Â°
	278	asdif, & !< shortwave diffuse albedo solar angle of 60Â°
	279	asdir, & !< shortwave direct albedo solar angle of 60Â°
	280	rrtm_ccl4vmr, & !< CCL4 volume mixing ratio (g/mol)
	281	rrtm_cfc11vmr, & !< CFC11 volume mixing ratio (g/mol)
	282	rrtm_cfc12vmr, & !< CFC12 volume mixing ratio (g/mol)
	283	rrtm_cfc22vmr, & !< CFC22 volume mixing ratio (g/mol)
	284	rrtm_ch4vmr, & !< CH4 volume mixing ratio
	285	rrtm_cicewp, & !< in-cloud ice water path (g/mÂ²)
	286	rrtm_cldfr, & !< cloud fraction (0,1)
	287	rrtm_cliqwp, & !< in-cloud liquid water path (g/mÂ²)
	288	rrtm_co2vmr, & !< CO2 volume mixing ratio (g/mol)
	289	rrtm_emis, & !< surface emissivity (0-1)
	290	rrtm_h2ovmr, & !< H2O volume mixing ratio
	291	rrtm_n2ovmr, & !< N2O volume mixing ratio
	292	rrtm_o2vmr, & !< O2 volume mixing ratio
	293	rrtm_o3vmr, & !< O3 volume mixing ratio
	294	rrtm_play, & !< pressure layers (hPa, zu-grid)
	295	rrtm_plev, & !< pressure layers (hPa, zw-grid)
	296	rrtm_reice, & !< cloud ice effective radius (microns)
	297	rrtm_reliq, & !< cloud water drop effective radius (microns)
	298	rrtm_tlay, & !< actual temperature (K, zu-grid)
	299	rrtm_tlev, & !< actual temperature (K, zw-grid)
	300	rrtm_lwdflx, & !< RRTM output of incoming longwave radiation flux (W/m2)
	301	rrtm_lwdflxc, & !< RRTM output of outgoing clear sky longwave radiation flux (W/m2)
	302	rrtm_lwuflx, & !< RRTM output of outgoing longwave radiation flux (W/m2)
	303	rrtm_lwuflxc, & !< RRTM output of incoming clear sky longwave radiation flux (W/m2)
	304	rrtm_lwuflx_dt, & !< RRTM output of incoming clear sky longwave radiation flux (W/m2)
	305	rrtm_lwuflxc_dt,& !< RRTM output of outgoing clear sky longwave radiation flux (W/m2)
	306	rrtm_lwhr, & !< RRTM output of longwave radiation heating rate (K/d)
	307	rrtm_lwhrc, & !< RRTM output of incoming longwave clear sky radiation heating rate (K/d)
	308	rrtm_swdflx, & !< RRTM output of incoming shortwave radiation flux (W/m2)
	309	rrtm_swdflxc, & !< RRTM output of outgoing clear sky shortwave radiation flux (W/m2)
	310	rrtm_swuflx, & !< RRTM output of outgoing shortwave radiation flux (W/m2)
	311	rrtm_swuflxc, & !< RRTM output of incoming clear sky shortwave radiation flux (W/m2)
	312	rrtm_swhr, & !< RRTM output of shortwave radiation heating rate (K/d)
	313	rrtm_swhrc !< RRTM output of incoming shortwave clear sky radiation heating rate (K/d)
[1585]	314
	315	!
	316	!-- Definition of arrays that are currently not used for calling RRTMG (due to setting of flag parameters)
[1682]	317	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: rad_lw_cs_in, & !< incoming clear sky longwave radiation (W/m2) (not used)
	318	rad_lw_cs_out, & !< outgoing clear sky longwave radiation (W/m2) (not used)
	319	rad_sw_cs_in, & !< incoming clear sky shortwave radiation (W/m2) (not used)
	320	rad_sw_cs_out, & !< outgoing clear sky shortwave radiation (W/m2) (not used)
	321	rrtm_aldif, & !< surface albedo for longwave diffuse radiation
	322	rrtm_aldir, & !< surface albedo for longwave direct radiation
	323	rrtm_asdif, & !< surface albedo for shortwave diffuse radiation
	324	rrtm_asdir, & !< surface albedo for shortwave direct radiation
	325	rrtm_lw_tauaer, & !< lw aerosol optical depth
	326	rrtm_lw_taucld, & !< lw in-cloud optical depth
	327	rrtm_sw_taucld, & !< sw in-cloud optical depth
	328	rrtm_sw_ssacld, & !< sw in-cloud single scattering albedo
	329	rrtm_sw_asmcld, & !< sw in-cloud asymmetry parameter
	330	rrtm_sw_fsfcld, & !< sw in-cloud forward scattering fraction
	331	rrtm_sw_tauaer, & !< sw aerosol optical depth
	332	rrtm_sw_ssaaer, & !< sw aerosol single scattering albedo
	333	rrtm_sw_asmaer, & !< sw aerosol asymmetry parameter
	334	rrtm_sw_ecaer !< sw aerosol optical detph at 0.55 microns (rrtm_iaer = 6 only)
[1691]	335
[1585]	336	#endif
	337
[1496]	338	INTERFACE init_radiation
	339	MODULE PROCEDURE init_radiation
	340	END INTERFACE init_radiation
	341
[1551]	342	INTERFACE radiation_clearsky
	343	MODULE PROCEDURE radiation_clearsky
	344	END INTERFACE radiation_clearsky
[1496]	345
[1585]	346	INTERFACE radiation_rrtmg
	347	MODULE PROCEDURE radiation_rrtmg
	348	END INTERFACE radiation_rrtmg
[1551]	349
[1585]	350	INTERFACE radiation_tendency
	351	MODULE PROCEDURE radiation_tendency
	352	MODULE PROCEDURE radiation_tendency_ij
	353	END INTERFACE radiation_tendency
[1551]	354
[1496]	355	SAVE
	356
	357	PRIVATE
	358
[1585]	359	PUBLIC albedo, albedo_type, albedo_type_name, albedo_lw_dif, albedo_lw_dir,&
	360	albedo_sw_dif, albedo_sw_dir, constant_albedo, day_init, dots_rad, &
[1691]	361	dt_radiation, emissivity, force_radiation_call, init_radiation, &
	362	lambda, lw_radiation, net_radiation, rad_net, rad_net_av, radiation,&
	363	radiation_clearsky, radiation_rrtmg, radiation_scheme, &
	364	radiation_tendency, rad_lw_in, rad_lw_in_av, rad_lw_out, &
	365	rad_lw_out_av, rad_lw_cs_hr, rad_lw_cs_hr_av, rad_lw_hr, &
	366	rad_lw_hr_av, rad_sw_in, rad_sw_in_av, rad_sw_out, rad_sw_out_av, &
	367	rad_sw_cs_hr, rad_sw_cs_hr_av, rad_sw_hr, rad_sw_hr_av, sigma_sb, &
	368	skip_time_do_radiation, sw_radiation, time_radiation, time_utc_init
[1496]	369
[1691]	370
[1585]	371	#if defined ( __rrtmg )
[1691]	372	PUBLIC rrtm_aldif, rrtm_aldir, rrtm_asdif, rrtm_asdir, rrtm_idrv, &
	373	rrtm_lwuflx_dt
[1585]	374	#endif
[1496]	375
	376	CONTAINS
	377
	378	!------------------------------------------------------------------------------!
	379	! Description:
	380	! ------------
[1682]	381	!> Initialization of the radiation model
[1496]	382	!------------------------------------------------------------------------------!
	383	SUBROUTINE init_radiation
	384
	385	IMPLICIT NONE
	386
[1585]	387	!
	388	!-- Allocate array for storing the surface net radiation
	389	IF ( .NOT. ALLOCATED ( rad_net ) ) THEN
	390	ALLOCATE ( rad_net(nysg:nyng,nxlg:nxrg) )
	391	rad_net = 0.0_wp
	392	ENDIF
[1496]	393
	394	!
[1551]	395	!-- Fix net radiation in case of radiation_scheme = 'constant'
[1585]	396	IF ( radiation_scheme == 'constant' ) THEN
[1551]	397	rad_net = net_radiation
[1585]	398	radiation = .FALSE.
[1551]	399	!
[1585]	400	!-- Calculate orbital constants
	401	ELSE
[1551]	402	decl_1 = SIN(23.45_wp * pi / 180.0_wp)
	403	decl_2 = 2.0_wp * pi / 365.0_wp
	404	decl_3 = decl_2 * 81.0_wp
[1585]	405	lat = phi * pi / 180.0_wp
	406	lon = lambda * pi / 180.0_wp
	407	ENDIF
	408
	409
	410	IF ( radiation_scheme == 'clear-sky' ) THEN
	411
	412	ALLOCATE ( alpha(nysg:nyng,nxlg:nxrg) )
	413
	414	IF ( .NOT. ALLOCATED ( rad_sw_in ) ) THEN
	415	ALLOCATE ( rad_sw_in(0:0,nysg:nyng,nxlg:nxrg) )
	416	ENDIF
	417	IF ( .NOT. ALLOCATED ( rad_sw_out ) ) THEN
	418	ALLOCATE ( rad_sw_out(0:0,nysg:nyng,nxlg:nxrg) )
	419	ENDIF
	420
	421	IF ( .NOT. ALLOCATED ( rad_sw_in_av ) ) THEN
	422	ALLOCATE ( rad_sw_in_av(0:0,nysg:nyng,nxlg:nxrg) )
	423	ENDIF
	424	IF ( .NOT. ALLOCATED ( rad_sw_out_av ) ) THEN
	425	ALLOCATE ( rad_sw_out_av(0:0,nysg:nyng,nxlg:nxrg) )
	426	ENDIF
	427
	428	IF ( .NOT. ALLOCATED ( rad_lw_in ) ) THEN
	429	ALLOCATE ( rad_lw_in(0:0,nysg:nyng,nxlg:nxrg) )
	430	ENDIF
	431	IF ( .NOT. ALLOCATED ( rad_lw_out ) ) THEN
	432	ALLOCATE ( rad_lw_out(0:0,nysg:nyng,nxlg:nxrg) )
	433	ENDIF
	434
	435	IF ( .NOT. ALLOCATED ( rad_lw_in_av ) ) THEN
	436	ALLOCATE ( rad_lw_in_av(0:0,nysg:nyng,nxlg:nxrg) )
	437	ENDIF
	438	IF ( .NOT. ALLOCATED ( rad_lw_out_av ) ) THEN
	439	ALLOCATE ( rad_lw_out_av(0:0,nysg:nyng,nxlg:nxrg) )
	440	ENDIF
	441
	442	rad_sw_in = 0.0_wp
	443	rad_sw_out = 0.0_wp
	444	rad_lw_in = 0.0_wp
	445	rad_lw_out = 0.0_wp
	446
[1496]	447	!
[1585]	448	!-- Overwrite albedo if manually set in parameter file
	449	IF ( albedo_type /= 0 .AND. albedo == 9999999.9_wp ) THEN
	450	albedo = albedo_pars(2,albedo_type)
	451	ENDIF
	452
	453	alpha = albedo
	454
	455	!
	456	!-- Initialization actions for RRTMG
	457	ELSEIF ( radiation_scheme == 'rrtmg' ) THEN
	458	#if defined ( __rrtmg )
	459	!
	460	!-- Allocate albedos
	461	ALLOCATE ( rrtm_aldif(0:0,nysg:nyng,nxlg:nxrg) )
	462	ALLOCATE ( rrtm_aldir(0:0,nysg:nyng,nxlg:nxrg) )
	463	ALLOCATE ( rrtm_asdif(0:0,nysg:nyng,nxlg:nxrg) )
	464	ALLOCATE ( rrtm_asdir(0:0,nysg:nyng,nxlg:nxrg) )
	465	ALLOCATE ( aldif(nysg:nyng,nxlg:nxrg) )
	466	ALLOCATE ( aldir(nysg:nyng,nxlg:nxrg) )
	467	ALLOCATE ( asdif(nysg:nyng,nxlg:nxrg) )
	468	ALLOCATE ( asdir(nysg:nyng,nxlg:nxrg) )
	469
	470	IF ( albedo_type /= 0 ) THEN
	471	IF ( albedo_lw_dif == 9999999.9_wp ) THEN
	472	albedo_lw_dif = albedo_pars(0,albedo_type)
	473	albedo_lw_dir = albedo_lw_dif
	474	ENDIF
	475	IF ( albedo_sw_dif == 9999999.9_wp ) THEN
	476	albedo_sw_dif = albedo_pars(1,albedo_type)
	477	albedo_sw_dir = albedo_sw_dif
	478	ENDIF
	479	ENDIF
	480
	481	aldif(:,:) = albedo_lw_dif
	482	aldir(:,:) = albedo_lw_dir
	483	asdif(:,:) = albedo_sw_dif
	484	asdir(:,:) = albedo_sw_dir
	485	!
	486	!-- Calculate initial values of current (cosine of) the zenith angle and
	487	!-- whether the sun is up
	488	CALL calc_zenith
	489	!
	490	!-- Calculate initial surface albedo
	491	IF ( .NOT. constant_albedo ) THEN
	492	CALL calc_albedo
	493	ELSE
	494	rrtm_aldif(0,:,:) = aldif(:,:)
	495	rrtm_aldir(0,:,:) = aldir(:,:)
	496	rrtm_asdif(0,:,:) = asdif(:,:)
	497	rrtm_asdir(0,:,:) = asdir(:,:)
	498	ENDIF
	499
	500	!
	501	!-- Allocate surface emissivity
	502	ALLOCATE ( rrtm_emis(0:0,1:nbndlw+1) )
	503	rrtm_emis = emissivity
	504
	505	!
	506	!-- Allocate 3d arrays of radiative fluxes and heating rates
	507	IF ( .NOT. ALLOCATED ( rad_sw_in ) ) THEN
	508	ALLOCATE ( rad_sw_in(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	509	rad_sw_in = 0.0_wp
	510	ENDIF
	511
	512	IF ( .NOT. ALLOCATED ( rad_sw_in_av ) ) THEN
	513	ALLOCATE ( rad_sw_in_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	514	ENDIF
	515
	516	IF ( .NOT. ALLOCATED ( rad_sw_out ) ) THEN
	517	ALLOCATE ( rad_sw_out(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1691]	518	rad_sw_out = 0.0_wp
[1585]	519	ENDIF
	520
	521	IF ( .NOT. ALLOCATED ( rad_sw_out_av ) ) THEN
	522	ALLOCATE ( rad_sw_out_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	523	ENDIF
	524
[1691]	525	IF ( .NOT. ALLOCATED ( rad_sw_hr ) ) THEN
	526	ALLOCATE ( rad_sw_hr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	527	rad_sw_hr = 0.0_wp
	528	ENDIF
[1585]	529
[1691]	530	IF ( .NOT. ALLOCATED ( rad_sw_hr_av ) ) THEN
	531	ALLOCATE ( rad_sw_hr_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	532	rad_sw_hr_av = 0.0_wp
	533	ENDIF
	534
	535	IF ( .NOT. ALLOCATED ( rad_sw_cs_hr ) ) THEN
	536	ALLOCATE ( rad_sw_cs_hr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	537	rad_sw_cs_hr = 0.0_wp
	538	ENDIF
	539
	540	IF ( .NOT. ALLOCATED ( rad_sw_cs_hr_av ) ) THEN
	541	ALLOCATE ( rad_sw_cs_hr_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	542	rad_sw_cs_hr_av = 0.0_wp
	543	ENDIF
	544
[1585]	545	IF ( .NOT. ALLOCATED ( rad_lw_in ) ) THEN
	546	ALLOCATE ( rad_lw_in(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	547	rad_lw_in = 0.0_wp
	548	ENDIF
	549
	550	IF ( .NOT. ALLOCATED ( rad_lw_in_av ) ) THEN
	551	ALLOCATE ( rad_lw_in_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	552	ENDIF
	553
	554	IF ( .NOT. ALLOCATED ( rad_lw_out ) ) THEN
	555	ALLOCATE ( rad_lw_out(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	556	rad_lw_out = 0.0_wp
	557	ENDIF
	558
	559	IF ( .NOT. ALLOCATED ( rad_lw_out_av ) ) THEN
	560	ALLOCATE ( rad_lw_out_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	561	ENDIF
	562
[1691]	563	IF ( .NOT. ALLOCATED ( rad_lw_hr ) ) THEN
	564	ALLOCATE ( rad_lw_hr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	565	rad_lw_hr = 0.0_wp
	566	ENDIF
	567
	568	IF ( .NOT. ALLOCATED ( rad_lw_hr_av ) ) THEN
	569	ALLOCATE ( rad_lw_hr_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	570	rad_lw_hr_av = 0.0_wp
	571	ENDIF
	572
	573	IF ( .NOT. ALLOCATED ( rad_lw_cs_hr ) ) THEN
	574	ALLOCATE ( rad_lw_cs_hr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	575	rad_lw_cs_hr = 0.0_wp
	576	ENDIF
	577
	578	IF ( .NOT. ALLOCATED ( rad_lw_cs_hr_av ) ) THEN
	579	ALLOCATE ( rad_lw_cs_hr_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	580	rad_lw_cs_hr_av = 0.0_wp
	581	ENDIF
	582
	583	ALLOCATE ( rad_sw_cs_in(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	584	ALLOCATE ( rad_sw_cs_out(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1585]	585	rad_sw_cs_in = 0.0_wp
	586	rad_sw_cs_out = 0.0_wp
	587
[1691]	588	ALLOCATE ( rad_lw_cs_in(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	589	ALLOCATE ( rad_lw_cs_out(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1585]	590	rad_lw_cs_in = 0.0_wp
	591	rad_lw_cs_out = 0.0_wp
	592
	593	!
	594	!-- Allocate dummy array for storing surface temperature
	595	ALLOCATE ( rrtm_tsfc(1) )
	596
	597	!
	598	!-- Initialize RRTMG
	599	IF ( lw_radiation ) CALL rrtmg_lw_ini ( cp )
	600	IF ( sw_radiation ) CALL rrtmg_sw_ini ( cp )
	601
	602	!
	603	!-- Set input files for RRTMG
	604	INQUIRE(FILE="RAD_SND_DATA", EXIST=snd_exists)
	605	IF ( .NOT. snd_exists ) THEN
	606	rrtm_input_file = "rrtmg_lw.nc"
	607	ENDIF
	608
	609	!
	610	!-- Read vertical layers for RRTMG from sounding data
	611	!-- The routine provides nzt_rad, hyp_snd(1:nzt_rad),
	612	!-- t_snd(nzt+2:nzt_rad), rrtm_play(1:nzt_rad), rrtm_plev(1_nzt_rad+1),
	613	!-- rrtm_tlay(nzt+2:nzt_rad), rrtm_tlev(nzt+2:nzt_rad+1)
	614	CALL read_sounding_data
	615
	616	!
	617	!-- Read trace gas profiles from file. This routine provides
	618	!-- the rrtm_ arrays (1:nzt_rad+1)
	619	CALL read_trace_gas_data
	620	#endif
[1551]	621	ENDIF
[1585]	622
[1551]	623	!
[1585]	624	!-- Perform user actions if required
	625	CALL user_init_radiation
	626
	627
	628	!
[1551]	629	!-- Add timeseries for radiation model
[1585]	630	dots_rad = dots_num + 1
[1691]	631	dots_num = dots_num + 5
[1496]	632
[1701]	633	dots_label(dots_rad) = "rad_net"
	634	dots_label(dots_rad+1) = "rad_lw_in"
	635	dots_label(dots_rad+2) = "rad_lw_out"
	636	dots_label(dots_rad+3) = "rad_sw_in"
	637	dots_label(dots_rad+4) = "rad_sw_out"
[1691]	638	dots_unit(dots_rad:dots_rad+4) = "W/m2"
	639
[1585]	640	!
	641	!-- Output of albedos is only required for RRTMG
	642	IF ( radiation_scheme == 'rrtmg' ) THEN
	643	dots_num = dots_num + 4
[1691]	644	dots_label(dots_rad+5) = "rrtm_aldif"
	645	dots_label(dots_rad+6) = "rrtm_aldir"
	646	dots_label(dots_rad+7) = "rrtm_asdif"
	647	dots_label(dots_rad+8) = "rrtm_asdir"
	648	dots_unit(dots_num+5:dots_num+8) = ""
	649
[1585]	650	ENDIF
[1551]	651
[1585]	652	!
	653	!-- Calculate radiative fluxes at model start
	654	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	655	IF ( radiation_scheme == 'clear-sky' ) THEN
	656	CALL radiation_clearsky
	657	ELSEIF ( radiation_scheme == 'rrtmg' ) THEN
	658	CALL radiation_rrtmg
	659	ENDIF
	660	ENDIF
	661
[1496]	662	RETURN
	663
	664	END SUBROUTINE init_radiation
	665
	666
	667	!------------------------------------------------------------------------------!
	668	! Description:
	669	! ------------
[1682]	670	!> A simple clear sky radiation model
[1496]	671	!------------------------------------------------------------------------------!
[1551]	672	SUBROUTINE radiation_clearsky
[1496]	673
[1585]	674	USE indices, &
	675	ONLY: nbgp
	676
[1496]	677	IMPLICIT NONE
	678
[1691]	679	INTEGER(iwp) :: i, j, k !< loop indices
	680	REAL(wp) :: exn, & !< Exner functions at surface
	681	exn_1, & !< Exner functions at first grid level
	682	pt_1 !< potential temperature at first grid level
[1585]	683
[1496]	684	!
[1585]	685	!-- Calculate current zenith angle
	686	CALL calc_zenith
	687
	688	!
	689	!-- Calculate sky transmissivity
	690	sky_trans = 0.6_wp + 0.2_wp * zenith(0)
	691
	692	!
	693	!-- Calculate value of the Exner function
	694	exn = (surface_pressure / 1000.0_wp )**0.286_wp
	695	!
	696	!-- Calculate radiation fluxes and net radiation (rad_net) for each grid
	697	!-- point
	698	DO i = nxl, nxr
	699	DO j = nys, nyn
	700	k = nzb_s_inner(j,i)
[1691]	701
	702	exn_1 = (hyp(k+1) / 100000.0_wp )**0.286_wp
	703
[1585]	704	rad_sw_in(0,j,i) = solar_constant * sky_trans * zenith(0)
	705	rad_sw_out(0,j,i) = alpha(j,i) * rad_sw_in(0,j,i)
[1691]	706	rad_lw_out(0,j,i) = emissivity * sigma_sb * (pt(k,j,i) * exn)**4
[1585]	707
[1691]	708	IF ( cloud_physics ) THEN
	709	pt_1 = pt(k+1,j,i) + l_d_cp / exn_1 * ql(k+1,j,i)
	710	rad_lw_in(0,j,i) = 0.8_wp * sigma_sb * (pt_1 * exn_1)**4
	711	ELSE
	712	rad_lw_in(0,j,i) = 0.8_wp * sigma_sb * (pt(k+1,j,i) * exn_1)**4
	713	ENDIF
	714
	715	rad_net(j,i) = rad_sw_in(0,j,i) - rad_sw_out(0,j,i) &
	716	+ rad_lw_in(0,j,i) - rad_lw_out(0,j,i)
	717
[1585]	718	ENDDO
	719	ENDDO
	720
	721	CALL exchange_horiz_2d( rad_lw_in, nbgp )
	722	CALL exchange_horiz_2d( rad_lw_out, nbgp )
	723	CALL exchange_horiz_2d( rad_sw_in, nbgp )
	724	CALL exchange_horiz_2d( rad_sw_out, nbgp )
	725	CALL exchange_horiz_2d( rad_net, nbgp )
	726
	727	RETURN
	728
	729	END SUBROUTINE radiation_clearsky
	730
	731
	732	!------------------------------------------------------------------------------!
	733	! Description:
	734	! ------------
[1682]	735	!> Implementation of the RRTMG radiation_scheme
[1585]	736	!------------------------------------------------------------------------------!
	737	SUBROUTINE radiation_rrtmg
	738
	739	USE indices, &
	740	ONLY: nbgp
	741
	742	USE particle_attributes, &
	743	ONLY: grid_particles, number_of_particles, particles, &
	744	particle_advection_start, prt_count
	745
	746	IMPLICIT NONE
	747
	748	#if defined ( __rrtmg )
	749
[1691]	750	INTEGER(iwp) :: i, j, k, n !< loop indices
[1585]	751
[1691]	752	REAL(wp) :: s_r2, & !< weighted sum over all droplets with r^2
	753	s_r3 !< weighted sum over all droplets with r^3
[1585]	754
	755	!
	756	!-- Calculate current (cosine of) zenith angle and whether the sun is up
	757	CALL calc_zenith
	758	!
	759	!-- Calculate surface albedo
	760	IF ( .NOT. constant_albedo ) THEN
	761	CALL calc_albedo
	762	ENDIF
	763
	764	!
	765	!-- Prepare input data for RRTMG
	766
	767	!
	768	!-- In case of large scale forcing with surface data, calculate new pressure
	769	!-- profile. nzt_rad might be modified by these calls and all required arrays
	770	!-- will then be re-allocated
[1691]	771	IF ( large_scale_forcing .AND. lsf_surf ) THEN
[1585]	772	CALL read_sounding_data
	773	CALL read_trace_gas_data
	774	ENDIF
	775	!
	776	!-- Loop over all grid points
	777	DO i = nxl, nxr
	778	DO j = nys, nyn
	779
	780	!
	781	!-- Prepare profiles of temperature and H2O volume mixing ratio
[1691]	782	rrtm_tlev(0,nzb+1) = pt(nzb,j,i) * ( surface_pressure &
	783	/ 1000.0_wp )**0.286_wp
[1585]	784
	785	DO k = nzb+1, nzt+1
	786	rrtm_tlay(0,k) = pt(k,j,i) * ( (hyp(k) ) / 100000.0_wp &
[1691]	787	)*0.286_wp + l_d_cp ql(k,j,i)
	788	rrtm_h2ovmr(0,k) = mol_mass_air_d_wv * (q(k,j,i) - ql(k,j,i))
[1585]	789
	790	ENDDO
	791
	792	!
	793	!-- Avoid temperature/humidity jumps at the top of the LES domain by
	794	!-- linear interpolation from nzt+2 to nzt+7
	795	DO k = nzt+2, nzt+7
	796	rrtm_tlay(0,k) = rrtm_tlay(0,nzt+1) &
	797	+ ( rrtm_tlay(0,nzt+8) - rrtm_tlay(0,nzt+1) ) &
	798	/ ( rrtm_play(0,nzt+8) - rrtm_play(0,nzt+1) ) &
	799	* ( rrtm_play(0,k) - rrtm_play(0,nzt+1) )
	800
	801	rrtm_h2ovmr(0,k) = rrtm_h2ovmr(0,nzt+1) &
	802	+ ( rrtm_h2ovmr(0,nzt+8) - rrtm_h2ovmr(0,nzt+1) )&
	803	/ ( rrtm_play(0,nzt+8) - rrtm_play(0,nzt+1) )&
	804	* ( rrtm_play(0,k) - rrtm_play(0,nzt+1) )
	805
	806	ENDDO
	807
	808	!-- Linear interpolate to zw grid
	809	DO k = nzb+2, nzt+8
	810	rrtm_tlev(0,k) = rrtm_tlay(0,k-1) + (rrtm_tlay(0,k) - &
	811	rrtm_tlay(0,k-1)) &
	812	/ ( rrtm_play(0,k) - rrtm_play(0,k-1) ) &
	813	* ( rrtm_plev(0,k) - rrtm_play(0,k-1) )
	814	ENDDO
	815
	816
	817	!
	818	!-- Calculate liquid water path and cloud fraction for each column.
	819	!-- Note that LWP is required in g/mÂ² instead of kg/kg m.
	820	rrtm_cldfr = 0.0_wp
	821	rrtm_reliq = 0.0_wp
	822	rrtm_cliqwp = 0.0_wp
[1691]	823	rrtm_icld = 0
[1585]	824
	825	DO k = nzb+1, nzt+1
[1691]	826	rrtm_cliqwp(0,k) = ql(k,j,i) * 1000.0_wp * &
	827	(rrtm_plev(0,k) - rrtm_plev(0,k+1)) &
	828	* 100.0_wp / g
[1585]	829
[1691]	830	IF ( rrtm_cliqwp(0,k) > 0.0_wp ) THEN
[1585]	831	rrtm_cldfr(0,k) = 1.0_wp
[1691]	832	IF ( rrtm_icld == 0 ) rrtm_icld = 1
[1585]	833
	834	!
	835	!-- Calculate cloud droplet effective radius
	836	IF ( cloud_physics ) THEN
[1691]	837	rrtm_reliq(0,k) = 1.0E6_wp * ( 3.0_wp * ql(k,j,i) &
	838	* rho_surface &
	839	/ ( 4.0_wp * pi * nc_const * rho_l ) &
	840	)**0.33333333333333_wp &
	841	* EXP( LOG( sigma_gc )**2 )
[1585]	842
	843	ELSEIF ( cloud_droplets ) THEN
	844	number_of_particles = prt_count(k,j,i)
	845
	846	IF (number_of_particles <= 0) CYCLE
	847	particles => grid_particles(k,j,i)%particles(1:number_of_particles)
	848	s_r2 = 0.0_wp
	849	s_r3 = 0.0_wp
	850
	851	DO n = 1, number_of_particles
	852	IF ( particles(n)%particle_mask ) THEN
	853	s_r2 = s_r2 + particles(n)%radius*2 &
	854	particles(n)%weight_factor
	855	s_r3 = s_r3 + particles(n)%radius*3 &
	856	particles(n)%weight_factor
	857	ENDIF
	858	ENDDO
	859
	860	IF ( s_r2 > 0.0_wp ) rrtm_reliq(0,k) = s_r3 / s_r2
	861
	862	ENDIF
	863
	864	!
	865	!-- Limit effective radius
[1691]	866	IF ( rrtm_reliq(0,k) > 0.0_wp ) THEN
[1585]	867	rrtm_reliq(0,k) = MAX(rrtm_reliq(0,k),2.5_wp)
	868	rrtm_reliq(0,k) = MIN(rrtm_reliq(0,k),60.0_wp)
	869	ENDIF
	870	ENDIF
	871	ENDDO
	872
	873	!
	874	!-- Set surface temperature
	875	rrtm_tsfc = pt(nzb,j,i) * (surface_pressure / 1000.0_wp )**0.286_wp
	876
	877	IF ( lw_radiation ) THEN
	878	CALL rrtmg_lw( 1, nzt_rad , rrtm_icld , rrtm_idrv ,&
	879	rrtm_play , rrtm_plev , rrtm_tlay , rrtm_tlev ,&
	880	rrtm_tsfc , rrtm_h2ovmr , rrtm_o3vmr , rrtm_co2vmr ,&
	881	rrtm_ch4vmr , rrtm_n2ovmr , rrtm_o2vmr , rrtm_cfc11vmr ,&
	882	rrtm_cfc12vmr , rrtm_cfc22vmr, rrtm_ccl4vmr , rrtm_emis ,&
	883	rrtm_inflglw , rrtm_iceflglw, rrtm_liqflglw, rrtm_cldfr ,&
	884	rrtm_lw_taucld , rrtm_cicewp , rrtm_cliqwp , rrtm_reice ,&
	885	rrtm_reliq , rrtm_lw_tauaer, &
	886	rrtm_lwuflx , rrtm_lwdflx , rrtm_lwhr , &
[1691]	887	rrtm_lwuflxc , rrtm_lwdflxc , rrtm_lwhrc , &
	888	rrtm_lwuflx_dt , rrtm_lwuflxc_dt )
[1585]	889
[1691]	890	!
	891	!-- Save fluxes
[1585]	892	DO k = nzb, nzt+1
	893	rad_lw_in(k,j,i) = rrtm_lwdflx(0,k)
	894	rad_lw_out(k,j,i) = rrtm_lwuflx(0,k)
	895	ENDDO
	896
[1691]	897	!
	898	!-- Save heating rates (convert from K/d to K/h)
	899	DO k = nzb+1, nzt+1
	900	rad_lw_hr(k,j,i) = rrtm_lwhr(0,k) * d_hours_day
	901	rad_lw_cs_hr(k,j,i) = rrtm_lwhrc(0,k) * d_hours_day
	902	ENDDO
[1585]	903
	904	ENDIF
	905
	906	IF ( sw_radiation .AND. sun_up ) THEN
	907	CALL rrtmg_sw( 1, nzt_rad , rrtm_icld , rrtm_iaer ,&
	908	rrtm_play , rrtm_plev , rrtm_tlay , rrtm_tlev ,&
	909	rrtm_tsfc , rrtm_h2ovmr , rrtm_o3vmr , rrtm_co2vmr ,&
	910	rrtm_ch4vmr , rrtm_n2ovmr , rrtm_o2vmr , rrtm_asdir(:,j,i),&
	911	rrtm_asdif(:,j,i), rrtm_aldir(:,j,i), rrtm_aldif(:,j,i), zenith,&
	912	0.0_wp , day , solar_constant, rrtm_inflgsw,&
	913	rrtm_iceflgsw , rrtm_liqflgsw, rrtm_cldfr , rrtm_sw_taucld ,&
	914	rrtm_sw_ssacld , rrtm_sw_asmcld, rrtm_sw_fsfcld, rrtm_cicewp ,&
	915	rrtm_cliqwp , rrtm_reice , rrtm_reliq , rrtm_sw_tauaer ,&
	916	rrtm_sw_ssaaer , rrtm_sw_asmaer , rrtm_sw_ecaer , &
	917	rrtm_swuflx , rrtm_swdflx , rrtm_swhr , &
	918	rrtm_swuflxc , rrtm_swdflxc , rrtm_swhrc )
	919
[1691]	920	!
	921	!-- Save fluxes
[1585]	922	DO k = nzb, nzt+1
	923	rad_sw_in(k,j,i) = rrtm_swdflx(0,k)
	924	rad_sw_out(k,j,i) = rrtm_swuflx(0,k)
	925	ENDDO
[1691]	926
	927	!
	928	!-- Save heating rates (convert from K/d to K/s)
	929	DO k = nzb+1, nzt+1
	930	rad_sw_hr(k,j,i) = rrtm_swhr(0,k) * d_hours_day
	931	rad_sw_cs_hr(k,j,i) = rrtm_swhrc(0,k) * d_hours_day
	932	ENDDO
	933
[1585]	934	ENDIF
	935
	936	!
	937	!-- Calculate surface net radiation
	938	rad_net(j,i) = rad_sw_in(nzb,j,i) - rad_sw_out(nzb,j,i) &
	939	+ rad_lw_in(nzb,j,i) - rad_lw_out(nzb,j,i)
	940
	941	ENDDO
	942	ENDDO
	943
	944	CALL exchange_horiz( rad_lw_in, nbgp )
	945	CALL exchange_horiz( rad_lw_out, nbgp )
[1691]	946	CALL exchange_horiz( rad_lw_hr, nbgp )
	947	CALL exchange_horiz( rad_lw_cs_hr, nbgp )
	948
[1585]	949	CALL exchange_horiz( rad_sw_in, nbgp )
	950	CALL exchange_horiz( rad_sw_out, nbgp )
[1691]	951	CALL exchange_horiz( rad_sw_hr, nbgp )
	952	CALL exchange_horiz( rad_sw_cs_hr, nbgp )
	953
[1585]	954	CALL exchange_horiz_2d( rad_net, nbgp )
	955	#endif
	956
	957	END SUBROUTINE radiation_rrtmg
	958
	959
	960	!------------------------------------------------------------------------------!
	961	! Description:
	962	! ------------
[1682]	963	!> Calculate the cosine of the zenith angle (variable is called zenith)
[1585]	964	!------------------------------------------------------------------------------!
	965	SUBROUTINE calc_zenith
	966
	967	IMPLICIT NONE
	968
[1682]	969	REAL(wp) :: declination, & !< solar declination angle
	970	hour_angle !< solar hour angle
[1585]	971	!
[1496]	972	!-- Calculate current day and time based on the initial values and simulation
	973	!-- time
[1585]	974	day = day_init + INT(FLOOR( (time_utc_init + time_since_reference_point) &
	975	/ 86400.0_wp ), KIND=iwp)
[1496]	976	time_utc = MOD((time_utc_init + time_since_reference_point), 86400.0_wp)
	977
	978
	979	!
	980	!-- Calculate solar declination and hour angle
[1585]	981	declination = ASIN( decl_1 * SIN(decl_2 * REAL(day, KIND=wp) - decl_3) )
[1496]	982	hour_angle = 2.0_wp * pi * (time_utc / 86400.0_wp) + lon - pi
	983
	984	!
	985	!-- Calculate zenith angle
[1585]	986	zenith(0) = SIN(lat) * SIN(declination) + COS(lat) * COS(declination) &
[1496]	987	* COS(hour_angle)
[1585]	988	zenith(0) = MAX(0.0_wp,zenith(0))
[1496]	989
	990	!
[1585]	991	!-- Check if the sun is up (otheriwse shortwave calculations can be skipped)
[1691]	992	IF ( zenith(0) > 0.0_wp ) THEN
[1585]	993	sun_up = .TRUE.
	994	ELSE
	995	sun_up = .FALSE.
	996	END IF
[1496]	997
[1585]	998	END SUBROUTINE calc_zenith
	999
[1606]	1000	#if defined ( __rrtmg ) && defined ( __netcdf )
[1585]	1001	!------------------------------------------------------------------------------!
	1002	! Description:
	1003	! ------------
[1682]	1004	!> Calculates surface albedo components based on Briegleb (1992) and
	1005	!> Briegleb et al. (1986)
[1585]	1006	!------------------------------------------------------------------------------!
	1007	SUBROUTINE calc_albedo
	1008
	1009	IMPLICIT NONE
	1010
	1011	IF ( sun_up ) THEN
[1496]	1012	!
[1585]	1013	!-- Ocean
	1014	IF ( albedo_type == 1 ) THEN
	1015	rrtm_aldir(0,:,:) = 0.026_wp / ( zenith(0)**1.7_wp + 0.065_wp ) &
	1016	+ 0.15_wp * ( zenith(0) - 0.1_wp ) &
	1017	* ( zenith(0) - 0.5_wp ) &
	1018	* ( zenith(0) - 1.0_wp )
	1019	rrtm_asdir(0,:,:) = rrtm_aldir(0,:,:)
	1020	!
	1021	!-- Snow
	1022	ELSEIF ( albedo_type == 16 ) THEN
	1023	IF ( zenith(0) < 0.5_wp ) THEN
	1024	rrtm_aldir(0,:,:) = 0.5_wp * (1.0_wp - aldif) &
	1025	* ( 3.0_wp / (1.0_wp + 4.0_wp &
	1026	* zenith(0))) - 1.0_wp
	1027	rrtm_asdir(0,:,:) = 0.5_wp * (1.0_wp - asdif) &
	1028	* ( 3.0_wp / (1.0_wp + 4.0_wp &
	1029	* zenith(0))) - 1.0_wp
[1496]	1030
[1585]	1031	rrtm_aldir(0,:,:) = MIN(0.98_wp, rrtm_aldir(0,:,:))
	1032	rrtm_asdir(0,:,:) = MIN(0.98_wp, rrtm_asdir(0,:,:))
	1033	ELSE
	1034	rrtm_aldir(0,:,:) = aldif
	1035	rrtm_asdir(0,:,:) = asdif
	1036	ENDIF
[1496]	1037	!
[1585]	1038	!-- Sea ice
	1039	ELSEIF ( albedo_type == 15 ) THEN
	1040	rrtm_aldir(0,:,:) = aldif
	1041	rrtm_asdir(0,:,:) = asdif
	1042	!
	1043	!-- Land surfaces
	1044	ELSE
	1045	SELECT CASE ( albedo_type )
[1496]	1046
[1585]	1047	!
	1048	!-- Surface types with strong zenith dependence
	1049	CASE ( 1, 2, 3, 4, 11, 12, 13 )
	1050	rrtm_aldir(0,:,:) = aldif * 1.4_wp / &
	1051	(1.0_wp + 0.8_wp * zenith(0))
	1052	rrtm_asdir(0,:,:) = asdif * 1.4_wp / &
	1053	(1.0_wp + 0.8_wp * zenith(0))
	1054	!
	1055	!-- Surface types with weak zenith dependence
	1056	CASE ( 5, 6, 7, 8, 9, 10, 14 )
	1057	rrtm_aldir(0,:,:) = aldif * 1.1_wp / &
	1058	(1.0_wp + 0.2_wp * zenith(0))
	1059	rrtm_asdir(0,:,:) = asdif * 1.1_wp / &
	1060	(1.0_wp + 0.2_wp * zenith(0))
[1496]	1061
[1585]	1062	CASE DEFAULT
	1063
	1064	END SELECT
	1065	ENDIF
	1066	!
	1067	!-- Diffusive albedo is taken from Table 2
	1068	rrtm_aldif(0,:,:) = aldif
	1069	rrtm_asdif(0,:,:) = asdif
	1070
	1071	ELSE
	1072
	1073	rrtm_aldir(0,:,:) = 0.0_wp
	1074	rrtm_asdir(0,:,:) = 0.0_wp
	1075	rrtm_aldif(0,:,:) = 0.0_wp
	1076	rrtm_asdif(0,:,:) = 0.0_wp
	1077	ENDIF
	1078	END SUBROUTINE calc_albedo
	1079
	1080	!------------------------------------------------------------------------------!
	1081	! Description:
	1082	! ------------
[1682]	1083	!> Read sounding data (pressure and temperature) from RADIATION_DATA.
[1585]	1084	!------------------------------------------------------------------------------!
	1085	SUBROUTINE read_sounding_data
	1086
	1087	USE netcdf_control
	1088
	1089	IMPLICIT NONE
	1090
[1691]	1091	INTEGER(iwp) :: id, & !< NetCDF id of input file
	1092	id_dim_zrad, & !< pressure level id in the NetCDF file
	1093	id_var, & !< NetCDF variable id
	1094	k, & !< loop index
	1095	nz_snd, & !< number of vertical levels in the sounding data
	1096	nz_snd_start, & !< start vertical index for sounding data to be used
	1097	nz_snd_end !< end vertical index for souding data to be used
[1585]	1098
[1691]	1099	REAL(wp) :: t_surface !< actual surface temperature
[1585]	1100
[1691]	1101	REAL(wp), DIMENSION(:), ALLOCATABLE :: hyp_snd_tmp, & !< temporary hydrostatic pressure profile (sounding)
	1102	t_snd_tmp !< temporary temperature profile (sounding)
[1585]	1103
	1104	!
	1105	!-- In case of updates, deallocate arrays first (sufficient to check one
	1106	!-- array as the others are automatically allocated). This is required
	1107	!-- because nzt_rad might change during the update
	1108	IF ( ALLOCATED ( hyp_snd ) ) THEN
	1109	DEALLOCATE( hyp_snd )
	1110	DEALLOCATE( t_snd )
	1111	DEALLOCATE( q_snd )
	1112	DEALLOCATE ( rrtm_play )
	1113	DEALLOCATE ( rrtm_plev )
	1114	DEALLOCATE ( rrtm_tlay )
	1115	DEALLOCATE ( rrtm_tlev )
[1691]	1116
[1585]	1117	DEALLOCATE ( rrtm_h2ovmr )
	1118	DEALLOCATE ( rrtm_cicewp )
	1119	DEALLOCATE ( rrtm_cldfr )
	1120	DEALLOCATE ( rrtm_cliqwp )
	1121	DEALLOCATE ( rrtm_reice )
	1122	DEALLOCATE ( rrtm_reliq )
	1123	DEALLOCATE ( rrtm_lw_taucld )
	1124	DEALLOCATE ( rrtm_lw_tauaer )
[1691]	1125
[1585]	1126	DEALLOCATE ( rrtm_lwdflx )
[1691]	1127	DEALLOCATE ( rrtm_lwdflxc )
[1585]	1128	DEALLOCATE ( rrtm_lwuflx )
[1691]	1129	DEALLOCATE ( rrtm_lwuflxc )
	1130	DEALLOCATE ( rrtm_lwuflx_dt )
	1131	DEALLOCATE ( rrtm_lwuflxc_dt )
[1585]	1132	DEALLOCATE ( rrtm_lwhr )
	1133	DEALLOCATE ( rrtm_lwhrc )
[1691]	1134
[1585]	1135	DEALLOCATE ( rrtm_sw_taucld )
	1136	DEALLOCATE ( rrtm_sw_ssacld )
	1137	DEALLOCATE ( rrtm_sw_asmcld )
	1138	DEALLOCATE ( rrtm_sw_fsfcld )
	1139	DEALLOCATE ( rrtm_sw_tauaer )
	1140	DEALLOCATE ( rrtm_sw_ssaaer )
	1141	DEALLOCATE ( rrtm_sw_asmaer )
[1691]	1142	DEALLOCATE ( rrtm_sw_ecaer )
	1143
[1585]	1144	DEALLOCATE ( rrtm_swdflx )
[1691]	1145	DEALLOCATE ( rrtm_swdflxc )
[1585]	1146	DEALLOCATE ( rrtm_swuflx )
[1691]	1147	DEALLOCATE ( rrtm_swuflxc )
[1585]	1148	DEALLOCATE ( rrtm_swhr )
	1149	DEALLOCATE ( rrtm_swhrc )
[1691]	1150
[1585]	1151	ENDIF
	1152
	1153	!
	1154	!-- Open file for reading
	1155	nc_stat = NF90_OPEN( rrtm_input_file, NF90_NOWRITE, id )
	1156	CALL handle_netcdf_error( 'netcdf', 549 )
	1157
	1158	!
	1159	!-- Inquire dimension of z axis and save in nz_snd
	1160	nc_stat = NF90_INQ_DIMID( id, "Pressure", id_dim_zrad )
	1161	nc_stat = NF90_INQUIRE_DIMENSION( id, id_dim_zrad, len = nz_snd )
	1162	CALL handle_netcdf_error( 'netcdf', 551 )
	1163
	1164	!
	1165	! !-- Allocate temporary array for storing pressure data
[1701]	1166	ALLOCATE( hyp_snd_tmp(1:nz_snd) )
[1585]	1167	hyp_snd_tmp = 0.0_wp
	1168
	1169
	1170	!-- Read pressure from file
	1171	nc_stat = NF90_INQ_VARID( id, "Pressure", id_var )
[1691]	1172	nc_stat = NF90_GET_VAR( id, id_var, hyp_snd_tmp(:), start = (/1/), &
[1585]	1173	count = (/nz_snd/) )
	1174	CALL handle_netcdf_error( 'netcdf', 552 )
	1175
	1176	!
	1177	!-- Allocate temporary array for storing temperature data
[1701]	1178	ALLOCATE( t_snd_tmp(1:nz_snd) )
[1585]	1179	t_snd_tmp = 0.0_wp
	1180
	1181	!
	1182	!-- Read temperature from file
	1183	nc_stat = NF90_INQ_VARID( id, "ReferenceTemperature", id_var )
[1691]	1184	nc_stat = NF90_GET_VAR( id, id_var, t_snd_tmp(:), start = (/1/), &
[1585]	1185	count = (/nz_snd/) )
	1186	CALL handle_netcdf_error( 'netcdf', 553 )
	1187
	1188	!
	1189	!-- Calculate start of sounding data
	1190	nz_snd_start = nz_snd + 1
[1701]	1191	nz_snd_end = nz_snd + 1
[1585]	1192
	1193	!
	1194	!-- Start filling vertical dimension at 10hPa above the model domain (hyp is
	1195	!-- in Pa, hyp_snd in hPa).
	1196	DO k = 1, nz_snd
[1691]	1197	IF ( hyp_snd_tmp(k) < ( hyp(nzt+1) - 1000.0_wp) * 0.01_wp ) THEN
[1585]	1198	nz_snd_start = k
	1199	EXIT
	1200	END IF
	1201	END DO
	1202
[1691]	1203	IF ( nz_snd_start <= nz_snd ) THEN
[1701]	1204	nz_snd_end = nz_snd
[1585]	1205	END IF
	1206
	1207
	1208	!
	1209	!-- Calculate of total grid points for RRTMG calculations
[1701]	1210	nzt_rad = nzt + nz_snd_end - nz_snd_start + 1
[1585]	1211
	1212	!
	1213	!-- Save data above LES domain in hyp_snd, t_snd and q_snd
	1214	!-- Note: q_snd_tmp is not calculated at the moment (dry residual atmosphere)
	1215	ALLOCATE( hyp_snd(nzb+1:nzt_rad) )
	1216	ALLOCATE( t_snd(nzb+1:nzt_rad) )
	1217	ALLOCATE( q_snd(nzb+1:nzt_rad) )
	1218	hyp_snd = 0.0_wp
	1219	t_snd = 0.0_wp
	1220	q_snd = 0.0_wp
	1221
	1222	hyp_snd(nzt+2:nzt_rad) = hyp_snd_tmp(nz_snd_start:nz_snd_end)
	1223	t_snd(nzt+2:nzt_rad) = t_snd_tmp(nz_snd_start:nz_snd_end)
	1224
	1225	DEALLOCATE ( hyp_snd_tmp )
	1226	DEALLOCATE ( t_snd_tmp )
	1227
	1228	nc_stat = NF90_CLOSE( id )
	1229
	1230	!
	1231	!-- Calculate pressure levels on zu and zw grid. Sounding data is added at
	1232	!-- top of the LES domain. This routine does not consider horizontal or
	1233	!-- vertical variability of pressure and temperature
	1234	ALLOCATE ( rrtm_play(0:0,nzb+1:nzt_rad+1) )
	1235	ALLOCATE ( rrtm_plev(0:0,nzb+1:nzt_rad+2) )
	1236
[1691]	1237	t_surface = pt_surface * ( surface_pressure / 1000.0_wp )**0.286_wp
[1585]	1238	DO k = nzb+1, nzt+1
	1239	rrtm_play(0,k) = hyp(k) * 0.01_wp
	1240	rrtm_plev(0,k) = surface_pressure * ( (t_surface - g/cp * zw(k-1)) / &
	1241	t_surface )**(1.0_wp/0.286_wp)
	1242	ENDDO
	1243
	1244	DO k = nzt+2, nzt_rad
	1245	rrtm_play(0,k) = hyp_snd(k)
	1246	rrtm_plev(0,k) = 0.5_wp * ( rrtm_play(0,k) + rrtm_play(0,k-1) )
	1247	ENDDO
	1248	rrtm_plev(0,nzt_rad+1) = MAX( 0.5 * hyp_snd(nzt_rad), &
	1249	1.5 * hyp_snd(nzt_rad) &
	1250	- 0.5 * hyp_snd(nzt_rad-1) )
	1251	rrtm_plev(0,nzt_rad+2) = MIN( 1.0E-4_wp, &
	1252	0.25_wp * rrtm_plev(0,nzt_rad+1) )
	1253
	1254	rrtm_play(0,nzt_rad+1) = 0.5 * rrtm_plev(0,nzt_rad+1)
	1255
	1256	!
	1257	!-- Calculate temperature/humidity levels at top of the LES domain.
	1258	!-- Currently, the temperature is taken from sounding data (might lead to a
	1259	!-- temperature jump at interface. To do: Humidity is currently not
	1260	!-- calculated above the LES domain.
	1261	ALLOCATE ( rrtm_tlay(0:0,nzb+1:nzt_rad+1) )
	1262	ALLOCATE ( rrtm_tlev(0:0,nzb+1:nzt_rad+2) )
	1263	ALLOCATE ( rrtm_h2ovmr(0:0,nzb+1:nzt_rad+1) )
	1264
	1265	DO k = nzt+8, nzt_rad
	1266	rrtm_tlay(0,k) = t_snd(k)
	1267	rrtm_h2ovmr(0,k) = q_snd(k)
	1268	ENDDO
[1691]	1269	rrtm_tlay(0,nzt_rad+1) = 2.0_wp * rrtm_tlay(0,nzt_rad) &
	1270	- rrtm_tlay(0,nzt_rad-1)
[1585]	1271	DO k = nzt+9, nzt_rad+1
	1272	rrtm_tlev(0,k) = rrtm_tlay(0,k-1) + (rrtm_tlay(0,k) &
	1273	- rrtm_tlay(0,k-1)) &
	1274	/ ( rrtm_play(0,k) - rrtm_play(0,k-1) ) &
	1275	* ( rrtm_plev(0,k) - rrtm_play(0,k-1) )
	1276	ENDDO
	1277	rrtm_h2ovmr(0,nzt_rad+1) = rrtm_h2ovmr(0,nzt_rad)
	1278
	1279	rrtm_tlev(0,nzt_rad+2) = 2.0_wp * rrtm_tlay(0,nzt_rad+1) &
	1280	- rrtm_tlev(0,nzt_rad)
	1281	!
	1282	!-- Allocate remaining RRTMG arrays
	1283	ALLOCATE ( rrtm_cicewp(0:0,nzb+1:nzt_rad+1) )
	1284	ALLOCATE ( rrtm_cldfr(0:0,nzb+1:nzt_rad+1) )
	1285	ALLOCATE ( rrtm_cliqwp(0:0,nzb+1:nzt_rad+1) )
	1286	ALLOCATE ( rrtm_reice(0:0,nzb+1:nzt_rad+1) )
	1287	ALLOCATE ( rrtm_reliq(0:0,nzb+1:nzt_rad+1) )
	1288	ALLOCATE ( rrtm_lw_taucld(1:nbndlw+1,0:0,nzb+1:nzt_rad+1) )
	1289	ALLOCATE ( rrtm_lw_tauaer(0:0,nzb+1:nzt_rad+1,1:nbndlw+1) )
	1290	ALLOCATE ( rrtm_sw_taucld(1:nbndsw+1,0:0,nzb+1:nzt_rad+1) )
	1291	ALLOCATE ( rrtm_sw_ssacld(1:nbndsw+1,0:0,nzb+1:nzt_rad+1) )
	1292	ALLOCATE ( rrtm_sw_asmcld(1:nbndsw+1,0:0,nzb+1:nzt_rad+1) )
	1293	ALLOCATE ( rrtm_sw_fsfcld(1:nbndsw+1,0:0,nzb+1:nzt_rad+1) )
	1294	ALLOCATE ( rrtm_sw_tauaer(0:0,nzb+1:nzt_rad+1,1:nbndsw+1) )
	1295	ALLOCATE ( rrtm_sw_ssaaer(0:0,nzb+1:nzt_rad+1,1:nbndsw+1) )
	1296	ALLOCATE ( rrtm_sw_asmaer(0:0,nzb+1:nzt_rad+1,1:nbndsw+1) )
	1297	ALLOCATE ( rrtm_sw_ecaer(0:0,nzb+1:nzt_rad+1,1:naerec+1) )
	1298
	1299	!
	1300	!-- The ice phase is currently not considered in PALM
	1301	rrtm_cicewp = 0.0_wp
	1302	rrtm_reice = 0.0_wp
	1303
	1304	!
	1305	!-- Set other parameters (move to NAMELIST parameters in the future)
	1306	rrtm_lw_tauaer = 0.0_wp
	1307	rrtm_lw_taucld = 0.0_wp
	1308	rrtm_sw_taucld = 0.0_wp
	1309	rrtm_sw_ssacld = 0.0_wp
	1310	rrtm_sw_asmcld = 0.0_wp
	1311	rrtm_sw_fsfcld = 0.0_wp
	1312	rrtm_sw_tauaer = 0.0_wp
	1313	rrtm_sw_ssaaer = 0.0_wp
	1314	rrtm_sw_asmaer = 0.0_wp
	1315	rrtm_sw_ecaer = 0.0_wp
	1316
	1317
	1318	ALLOCATE ( rrtm_swdflx(0:0,nzb:nzt_rad+1) )
	1319	ALLOCATE ( rrtm_swuflx(0:0,nzb:nzt_rad+1) )
	1320	ALLOCATE ( rrtm_swhr(0:0,nzb+1:nzt_rad+1) )
	1321	ALLOCATE ( rrtm_swuflxc(0:0,nzb:nzt_rad+1) )
	1322	ALLOCATE ( rrtm_swdflxc(0:0,nzb:nzt_rad+1) )
	1323	ALLOCATE ( rrtm_swhrc(0:0,nzb+1:nzt_rad+1) )
	1324
	1325	rrtm_swdflx = 0.0_wp
	1326	rrtm_swuflx = 0.0_wp
	1327	rrtm_swhr = 0.0_wp
	1328	rrtm_swuflxc = 0.0_wp
	1329	rrtm_swdflxc = 0.0_wp
	1330	rrtm_swhrc = 0.0_wp
	1331
	1332	ALLOCATE ( rrtm_lwdflx(0:0,nzb:nzt_rad+1) )
	1333	ALLOCATE ( rrtm_lwuflx(0:0,nzb:nzt_rad+1) )
	1334	ALLOCATE ( rrtm_lwhr(0:0,nzb+1:nzt_rad+1) )
	1335	ALLOCATE ( rrtm_lwuflxc(0:0,nzb:nzt_rad+1) )
	1336	ALLOCATE ( rrtm_lwdflxc(0:0,nzb:nzt_rad+1) )
	1337	ALLOCATE ( rrtm_lwhrc(0:0,nzb+1:nzt_rad+1) )
	1338
	1339	rrtm_lwdflx = 0.0_wp
	1340	rrtm_lwuflx = 0.0_wp
	1341	rrtm_lwhr = 0.0_wp
	1342	rrtm_lwuflxc = 0.0_wp
	1343	rrtm_lwdflxc = 0.0_wp
	1344	rrtm_lwhrc = 0.0_wp
	1345
[1691]	1346	ALLOCATE ( rrtm_lwuflx_dt(0:0,nzb:nzt_rad+1) )
	1347	ALLOCATE ( rrtm_lwuflxc_dt(0:0,nzb:nzt_rad+1) )
[1585]	1348
[1691]	1349	rrtm_lwuflxc_dt = 0.0_wp
	1350	rrtm_lwuflxc_dt = 0.0_wp
	1351
[1585]	1352	END SUBROUTINE read_sounding_data
	1353
	1354
	1355	!------------------------------------------------------------------------------!
	1356	! Description:
	1357	! ------------
[1682]	1358	!> Read trace gas data from file
[1585]	1359	!------------------------------------------------------------------------------!
	1360	SUBROUTINE read_trace_gas_data
	1361
	1362	USE netcdf_control
	1363	USE rrsw_ncpar
	1364
	1365	IMPLICIT NONE
	1366
[1691]	1367	INTEGER(iwp), PARAMETER :: num_trace_gases = 9 !< number of trace gases (absorbers)
[1585]	1368
[1691]	1369	CHARACTER(LEN=5), DIMENSION(num_trace_gases), PARAMETER :: & !< trace gas names
[1585]	1370	trace_names = (/'O3 ', 'CO2 ', 'CH4 ', 'N2O ', 'O2 ', &
	1371	'CFC11', 'CFC12', 'CFC22', 'CCL4 '/)
	1372
[1691]	1373	INTEGER(iwp) :: id, & !< NetCDF id
	1374	k, & !< loop index
	1375	m, & !< loop index
	1376	n, & !< loop index
	1377	nabs, & !< number of absorbers
	1378	np, & !< number of pressure levels
	1379	id_abs, & !< NetCDF id of the respective absorber
	1380	id_dim, & !< NetCDF id of asborber's dimension
	1381	id_var !< NetCDf id ot the absorber
[1585]	1382
	1383	REAL(wp) :: p_mls_l, p_mls_u, p_wgt_l, p_wgt_u, p_mls_m
	1384
	1385
[1682]	1386	REAL(wp), DIMENSION(:), ALLOCATABLE :: p_mls, & !< pressure levels for the absorbers
	1387	rrtm_play_tmp, & !< temporary array for pressure zu-levels
	1388	rrtm_plev_tmp, & !< temporary array for pressure zw-levels
	1389	trace_path_tmp !< temporary array for storing trace gas path data
[1585]	1390
[1682]	1391	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: trace_mls, & !< array for storing the absorber amounts
	1392	trace_mls_path, & !< array for storing trace gas path data
	1393	trace_mls_tmp !< temporary array for storing trace gas data
[1585]	1394
	1395
	1396	!
	1397	!-- In case of updates, deallocate arrays first (sufficient to check one
	1398	!-- array as the others are automatically allocated)
	1399	IF ( ALLOCATED ( rrtm_o3vmr ) ) THEN
	1400	DEALLOCATE ( rrtm_o3vmr )
	1401	DEALLOCATE ( rrtm_co2vmr )
	1402	DEALLOCATE ( rrtm_ch4vmr )
	1403	DEALLOCATE ( rrtm_n2ovmr )
	1404	DEALLOCATE ( rrtm_o2vmr )
	1405	DEALLOCATE ( rrtm_cfc11vmr )
	1406	DEALLOCATE ( rrtm_cfc12vmr )
	1407	DEALLOCATE ( rrtm_cfc22vmr )
	1408	DEALLOCATE ( rrtm_ccl4vmr )
	1409	ENDIF
	1410
	1411	!
	1412	!-- Allocate trace gas profiles
	1413	ALLOCATE ( rrtm_o3vmr(0:0,1:nzt_rad+1) )
	1414	ALLOCATE ( rrtm_co2vmr(0:0,1:nzt_rad+1) )
	1415	ALLOCATE ( rrtm_ch4vmr(0:0,1:nzt_rad+1) )
	1416	ALLOCATE ( rrtm_n2ovmr(0:0,1:nzt_rad+1) )
	1417	ALLOCATE ( rrtm_o2vmr(0:0,1:nzt_rad+1) )
	1418	ALLOCATE ( rrtm_cfc11vmr(0:0,1:nzt_rad+1) )
	1419	ALLOCATE ( rrtm_cfc12vmr(0:0,1:nzt_rad+1) )
	1420	ALLOCATE ( rrtm_cfc22vmr(0:0,1:nzt_rad+1) )
	1421	ALLOCATE ( rrtm_ccl4vmr(0:0,1:nzt_rad+1) )
	1422
	1423	!
	1424	!-- Open file for reading
	1425	nc_stat = NF90_OPEN( rrtm_input_file, NF90_NOWRITE, id )
	1426	CALL handle_netcdf_error( 'netcdf', 549 )
	1427	!
	1428	!-- Inquire dimension ids and dimensions
	1429	nc_stat = NF90_INQ_DIMID( id, "Pressure", id_dim )
	1430	CALL handle_netcdf_error( 'netcdf', 550 )
	1431	nc_stat = NF90_INQUIRE_DIMENSION( id, id_dim, len = np)
	1432	CALL handle_netcdf_error( 'netcdf', 550 )
	1433
	1434	nc_stat = NF90_INQ_DIMID( id, "Absorber", id_dim )
	1435	CALL handle_netcdf_error( 'netcdf', 550 )
	1436	nc_stat = NF90_INQUIRE_DIMENSION( id, id_dim, len = nabs )
	1437	CALL handle_netcdf_error( 'netcdf', 550 )
	1438
	1439
	1440	!
	1441	!-- Allocate pressure, and trace gas arrays
	1442	ALLOCATE( p_mls(1:np) )
	1443	ALLOCATE( trace_mls(1:num_trace_gases,1:np) )
	1444	ALLOCATE( trace_mls_tmp(1:nabs,1:np) )
	1445
	1446
	1447	nc_stat = NF90_INQ_VARID( id, "Pressure", id_var )
	1448	CALL handle_netcdf_error( 'netcdf', 550 )
	1449	nc_stat = NF90_GET_VAR( id, id_var, p_mls )
	1450	CALL handle_netcdf_error( 'netcdf', 550 )
	1451
	1452	nc_stat = NF90_INQ_VARID( id, "AbsorberAmountMLS", id_var )
	1453	CALL handle_netcdf_error( 'netcdf', 550 )
	1454	nc_stat = NF90_GET_VAR( id, id_var, trace_mls_tmp )
	1455	CALL handle_netcdf_error( 'netcdf', 550 )
	1456
	1457
	1458	!
	1459	!-- Write absorber amounts (mls) to trace_mls
	1460	DO n = 1, num_trace_gases
	1461	CALL getAbsorberIndex( TRIM( trace_names(n) ), id_abs )
	1462
	1463	trace_mls(n,1:np) = trace_mls_tmp(id_abs,1:np)
	1464
	1465	!
	1466	!-- Replace missing values by zero
	1467	WHERE ( trace_mls(n,:) > 2.0_wp )
	1468	trace_mls(n,:) = 0.0_wp
	1469	END WHERE
	1470	END DO
	1471
	1472	DEALLOCATE ( trace_mls_tmp )
	1473
	1474	nc_stat = NF90_CLOSE( id )
	1475	CALL handle_netcdf_error( 'netcdf', 551 )
	1476
	1477	!
	1478	!-- Add extra pressure level for calculations of the trace gas paths
	1479	ALLOCATE ( rrtm_play_tmp(1:nzt_rad+1) )
	1480	ALLOCATE ( rrtm_plev_tmp(1:nzt_rad+2) )
	1481
	1482	rrtm_play_tmp(1:nzt_rad) = rrtm_play(0,1:nzt_rad)
	1483	rrtm_plev_tmp(1:nzt_rad+1) = rrtm_plev(0,1:nzt_rad+1)
	1484	rrtm_play_tmp(nzt_rad+1) = rrtm_plev(0,nzt_rad+1) * 0.5_wp
	1485	rrtm_plev_tmp(nzt_rad+2) = MIN( 1.0E-4_wp, 0.25_wp &
	1486	* rrtm_plev(0,nzt_rad+1) )
	1487
	1488	!
	1489	!-- Calculate trace gas path (zero at surface) with interpolation to the
	1490	!-- sounding levels
	1491	ALLOCATE ( trace_mls_path(1:nzt_rad+2,1:num_trace_gases) )
	1492
	1493	trace_mls_path(nzb+1,:) = 0.0_wp
	1494
	1495	DO k = nzb+2, nzt_rad+2
	1496	DO m = 1, num_trace_gases
	1497	trace_mls_path(k,m) = trace_mls_path(k-1,m)
	1498
	1499	!
	1500	!-- When the pressure level is higher than the trace gas pressure
	1501	!-- level, assume that
[1691]	1502	IF ( rrtm_plev_tmp(k-1) > p_mls(1) ) THEN
[1585]	1503
	1504	trace_mls_path(k,m) = trace_mls_path(k,m) + trace_mls(m,1) &
	1505	* ( rrtm_plev_tmp(k-1) &
	1506	- MAX( p_mls(1), rrtm_plev_tmp(k) ) &
	1507	) / g
	1508	ENDIF
	1509
	1510	!
	1511	!-- Integrate for each sounding level from the contributing p_mls
	1512	!-- levels
	1513	DO n = 2, np
	1514	!
	1515	!-- Limit p_mls so that it is within the model level
	1516	p_mls_u = MIN( rrtm_plev_tmp(k-1), &
	1517	MAX( rrtm_plev_tmp(k), p_mls(n) ) )
	1518	p_mls_l = MIN( rrtm_plev_tmp(k-1), &
	1519	MAX( rrtm_plev_tmp(k), p_mls(n-1) ) )
	1520
[1691]	1521	IF ( p_mls_l > p_mls_u ) THEN
[1585]	1522
	1523	!
	1524	!-- Calculate weights for interpolation
	1525	p_mls_m = 0.5_wp * (p_mls_l + p_mls_u)
	1526	p_wgt_u = (p_mls(n-1) - p_mls_m) / (p_mls(n-1) - p_mls(n))
	1527	p_wgt_l = (p_mls_m - p_mls(n)) / (p_mls(n-1) - p_mls(n))
	1528
	1529	!
	1530	!-- Add level to trace gas path
	1531	trace_mls_path(k,m) = trace_mls_path(k,m) &
	1532	+ ( p_wgt_u * trace_mls(m,n) &
	1533	+ p_wgt_l * trace_mls(m,n-1) ) &
[1691]	1534	* (p_mls_l - p_mls_u) / g
[1585]	1535	ENDIF
	1536	ENDDO
	1537
[1691]	1538	IF ( rrtm_plev_tmp(k) < p_mls(np) ) THEN
[1585]	1539	trace_mls_path(k,m) = trace_mls_path(k,m) + trace_mls(m,np) &
	1540	* ( MIN( rrtm_plev_tmp(k-1), p_mls(np) ) &
	1541	- rrtm_plev_tmp(k) &
	1542	) / g
	1543	ENDIF
[1496]	1544	ENDDO
	1545	ENDDO
	1546
	1547
[1585]	1548	!
	1549	!-- Prepare trace gas path profiles
	1550	ALLOCATE ( trace_path_tmp(1:nzt_rad+1) )
[1496]	1551
[1585]	1552	DO m = 1, num_trace_gases
	1553
	1554	trace_path_tmp(1:nzt_rad+1) = ( trace_mls_path(2:nzt_rad+2,m) &
	1555	- trace_mls_path(1:nzt_rad+1,m) ) * g &
	1556	/ ( rrtm_plev_tmp(1:nzt_rad+1) &
	1557	- rrtm_plev_tmp(2:nzt_rad+2) )
	1558
	1559	!
	1560	!-- Save trace gas paths to the respective arrays
	1561	SELECT CASE ( TRIM( trace_names(m) ) )
	1562
	1563	CASE ( 'O3' )
	1564
	1565	rrtm_o3vmr(0,:) = trace_path_tmp(:)
	1566
	1567	CASE ( 'CO2' )
	1568
	1569	rrtm_co2vmr(0,:) = trace_path_tmp(:)
	1570
	1571	CASE ( 'CH4' )
	1572
	1573	rrtm_ch4vmr(0,:) = trace_path_tmp(:)
	1574
	1575	CASE ( 'N2O' )
	1576
	1577	rrtm_n2ovmr(0,:) = trace_path_tmp(:)
	1578
	1579	CASE ( 'O2' )
	1580
	1581	rrtm_o2vmr(0,:) = trace_path_tmp(:)
	1582
	1583	CASE ( 'CFC11' )
	1584
	1585	rrtm_cfc11vmr(0,:) = trace_path_tmp(:)
	1586
	1587	CASE ( 'CFC12' )
	1588
	1589	rrtm_cfc12vmr(0,:) = trace_path_tmp(:)
	1590
	1591	CASE ( 'CFC22' )
	1592
	1593	rrtm_cfc22vmr(0,:) = trace_path_tmp(:)
	1594
	1595	CASE ( 'CCL4' )
	1596
	1597	rrtm_ccl4vmr(0,:) = trace_path_tmp(:)
	1598
	1599	CASE DEFAULT
	1600
	1601	END SELECT
	1602
	1603	ENDDO
	1604
	1605	DEALLOCATE ( trace_path_tmp )
	1606	DEALLOCATE ( trace_mls_path )
	1607	DEALLOCATE ( rrtm_play_tmp )
	1608	DEALLOCATE ( rrtm_plev_tmp )
	1609	DEALLOCATE ( trace_mls )
	1610	DEALLOCATE ( p_mls )
	1611
	1612	END SUBROUTINE read_trace_gas_data
	1613
	1614	#endif
	1615
	1616
[1551]	1617	!------------------------------------------------------------------------------!
	1618	! Description:
	1619	! ------------
[1682]	1620	!> Calculate temperature tendency due to radiative cooling/heating.
	1621	!> Cache-optimized version.
[1551]	1622	!------------------------------------------------------------------------------!
[1585]	1623	SUBROUTINE radiation_tendency_ij ( i, j, tend )
[1496]	1624
[1585]	1625	USE cloud_parameters, &
[1691]	1626	ONLY: pt_d_t
[1551]	1627
[1585]	1628	IMPLICIT NONE
	1629
[1691]	1630	INTEGER(iwp) :: i, j, k !< loop indices
[1585]	1631
[1691]	1632	REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: tend !< pt tendency term
[1585]	1633
	1634	#if defined ( __rrtmg )
	1635	!
[1691]	1636	!-- Calculate tendency based on heating rate
[1585]	1637	DO k = nzb+1, nzt+1
[1691]	1638	tend(k,j,i) = tend(k,j,i) + (rad_lw_hr(k,j,i) + rad_sw_hr(k,j,i)) &
	1639	* pt_d_t(k) * d_seconds_hour
[1585]	1640	ENDDO
	1641
	1642	#endif
	1643
	1644	END SUBROUTINE radiation_tendency_ij
	1645
	1646
[1551]	1647	!------------------------------------------------------------------------------!
	1648	! Description:
	1649	! ------------
[1682]	1650	!> Calculate temperature tendency due to radiative cooling/heating.
	1651	!> Vector-optimized version
[1551]	1652	!------------------------------------------------------------------------------!
[1585]	1653	SUBROUTINE radiation_tendency ( tend )
[1551]	1654
[1585]	1655	USE cloud_parameters, &
[1691]	1656	ONLY: pt_d_t
[1551]	1657
[1585]	1658	USE indices, &
	1659	ONLY: nxl, nxr, nyn, nys
	1660
	1661	IMPLICIT NONE
	1662
[1691]	1663	INTEGER(iwp) :: i, j, k !< loop indices
[1585]	1664
[1691]	1665	REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: tend !< pt tendency term
[1585]	1666
	1667	#if defined ( __rrtmg )
[1691]	1668	!
	1669	!-- Calculate tendency based on heating rate
[1585]	1670	DO i = nxl, nxr
	1671	DO j = nys, nyn
	1672	DO k = nzb+1, nzt+1
[1691]	1673	tend(k,j,i) = tend(k,j,i) + ( rad_lw_hr(k,j,i) &
	1674	+ rad_sw_hr(k,j,i) ) * pt_d_t(k) &
	1675	* d_seconds_hour
[1585]	1676	ENDDO
	1677	ENDDO
	1678	ENDDO
	1679	#endif
	1680
	1681	END SUBROUTINE radiation_tendency
	1682
[1496]	1683	END MODULE radiation_model_mod

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