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source: palm/trunk/SOURCE/radiation_model.f90 @ 1758

Last change on this file since 1758 was 1758, 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	!
[1758]	22	!
[1496]	23	! Former revisions:
	24	! -----------------
	25	! $Id: radiation_model.f90 1758 2016-02-22 15:53:28Z maronga $
	26	!
[1758]	27	! 1757 2016-02-22 15:49:32Z maronga
	28	! Added parameter unscheduled_radiation_calls. Bugfix: interpolation of sounding
	29	! profiles for pressure and temperature above the LES domain.
	30	!
[1710]	31	! 1709 2015-11-04 14:47:01Z maronga
	32	! Bugfix: set initial value for rrtm_lwuflx_dt to zero, small formatting
	33	! corrections
	34	!
[1702]	35	! 1701 2015-11-02 07:43:04Z maronga
	36	! Bugfixes: wrong index for output of timeseries, setting of nz_snd_end
	37	!
[1692]	38	! 1691 2015-10-26 16:17:44Z maronga
	39	! Added option for spin-up runs without radiation (skip_time_do_radiation). Bugfix
	40	! in calculation of pressure profiles. Bugfix in calculation of trace gas profiles.
	41	! Added output of radiative heating rates.
	42	!
[1683]	43	! 1682 2015-10-07 23:56:08Z knoop
	44	! Code annotations made doxygen readable
	45	!
[1607]	46	! 1606 2015-06-29 10:43:37Z maronga
	47	! Added preprocessor directive __netcdf to allow for compiling without netCDF.
	48	! Note, however, that RRTMG cannot be used without netCDF.
	49	!
[1591]	50	! 1590 2015-05-08 13:56:27Z maronga
	51	! Bugfix: definition of character strings requires same length for all elements
	52	!
[1588]	53	! 1587 2015-05-04 14:19:01Z maronga
	54	! Added albedo class for snow
	55	!
[1586]	56	! 1585 2015-04-30 07:05:52Z maronga
	57	! Added support for RRTMG
	58	!
[1572]	59	! 1571 2015-03-12 16:12:49Z maronga
	60	! Added missing KIND attribute. Removed upper-case variable names
	61	!
[1552]	62	! 1551 2015-03-03 14:18:16Z maronga
	63	! Added support for data output. Various variables have been renamed. Added
	64	! interface for different radiation schemes (currently: clear-sky, constant, and
	65	! RRTM (not yet implemented).
	66	!
[1497]	67	! 1496 2014-12-02 17:25:50Z maronga
	68	! Initial revision
	69	!
[1496]	70	!
	71	! Description:
	72	! ------------
[1682]	73	!> Radiation models and interfaces
	74	!> @todo move variable definitions used in init_radiation only to the subroutine
	75	!> as they are no longer required after initialization.
	76	!> @todo Output of full column vertical profiles used in RRTMG
	77	!> @todo Output of other rrtm arrays (such as volume mixing ratios)
	78	!> @todo Adapt for use with topography
	79	!>
	80	!> @note Many variables have a leading dummy dimension (0:0) in order to
	81	!> match the assume-size shape expected by the RRTMG model.
[1496]	82	!------------------------------------------------------------------------------!
[1682]	83	MODULE radiation_model_mod
	84
[1496]	85
	86	USE arrays_3d, &
[1691]	87	ONLY: dzw, hyp, pt, q, ql, zw
[1496]	88
[1585]	89	USE cloud_parameters, &
[1691]	90	ONLY: cp, l_d_cp, nc_const, rho_l, sigma_gc
[1585]	91
	92	USE constants, &
	93	ONLY: pi
	94
[1496]	95	USE control_parameters, &
[1585]	96	ONLY: cloud_droplets, cloud_physics, g, initializing_actions, &
[1691]	97	large_scale_forcing, lsf_surf, phi, pt_surface, rho_surface, &
[1585]	98	surface_pressure, time_since_reference_point
[1496]	99
	100	USE indices, &
[1585]	101	ONLY: nxl, nxlg, nxr, nxrg, nyn, nyng, nys, nysg, nzb_s_inner, nzb, nzt
[1496]	102
	103	USE kinds
	104
[1606]	105	#if defined ( __netcdf )
[1585]	106	USE netcdf
[1606]	107	#endif
[1585]	108
[1551]	109	USE netcdf_control, &
	110	ONLY: dots_label, dots_num, dots_unit
[1496]	111
[1585]	112	#if defined ( __rrtmg )
	113	USE parrrsw, &
	114	ONLY: naerec, nbndsw
[1551]	115
[1585]	116	USE parrrtm, &
	117	ONLY: nbndlw
	118
	119	USE rrtmg_lw_init, &
	120	ONLY: rrtmg_lw_ini
	121
	122	USE rrtmg_sw_init, &
	123	ONLY: rrtmg_sw_ini
	124
	125	USE rrtmg_lw_rad, &
	126	ONLY: rrtmg_lw
	127
	128	USE rrtmg_sw_rad, &
	129	ONLY: rrtmg_sw
	130	#endif
	131
	132
	133
[1496]	134	IMPLICIT NONE
	135
[1585]	136	CHARACTER(10) :: radiation_scheme = 'clear-sky' ! 'constant', 'clear-sky', or 'rrtmg'
[1551]	137
[1585]	138	!
	139	!-- Predefined Land surface classes (albedo_type) after Briegleb (1992)
[1590]	140	CHARACTER(37), DIMENSION(0:16), PARAMETER :: albedo_type_name = (/ &
	141	'user defined ', & ! 0
	142	'ocean ', & ! 1
	143	'mixed farming, tall grassland ', & ! 2
	144	'tall/medium grassland ', & ! 3
	145	'evergreen shrubland ', & ! 4
	146	'short grassland/meadow/shrubland ', & ! 5
	147	'evergreen needleleaf forest ', & ! 6
	148	'mixed deciduous evergreen forest ', & ! 7
	149	'deciduous forest ', & ! 8
	150	'tropical evergreen broadleaved forest', & ! 9
	151	'medium/tall grassland/woodland ', & ! 10
	152	'desert, sandy ', & ! 11
	153	'desert, rocky ', & ! 12
	154	'tundra ', & ! 13
	155	'land ice ', & ! 14
	156	'sea ice ', & ! 15
	157	'snow ' & ! 16
[1585]	158	/)
[1496]	159
[1682]	160	INTEGER(iwp) :: albedo_type = 5, & !< Albedo surface type (default: short grassland)
	161	day, & !< current day of the year
	162	day_init = 172, & !< day of the year at model start (21/06)
	163	dots_rad = 0 !< starting index for timeseries output
[1496]	164
	165
	166
[1585]	167
	168
	169
[1757]	170	LOGICAL :: unscheduled_radiation_calls = .TRUE., & !< flag parameter indicating whether additional calls of the radiation code are allowed
	171	constant_albedo = .FALSE., & !< flag parameter indicating whether the albedo may change depending on zenith
	172	force_radiation_call = .FALSE., & !< flag parameter for unscheduled radiation calls
	173	lw_radiation = .TRUE., & !< flag parameter indicating whether longwave radiation shall be calculated
	174	radiation = .FALSE., & !< flag parameter indicating whether the radiation model is used
	175	sun_up = .TRUE., & !< flag parameter indicating whether the sun is up or down
	176	sw_radiation = .TRUE. !< flag parameter indicing whether shortwave radiation shall be calculated
[1585]	177
[1496]	178
[1691]	179	REAL(wp), PARAMETER :: d_seconds_hour = 0.000277777777778_wp, & !< inverse of seconds per hour (1/3600)
	180	d_hours_day = 0.0416666666667_wp, & !< inverse of hours per day (1/24)
	181	sigma_sb = 5.67037321E-8_wp, & !< Stefan-Boltzmann constant
	182	solar_constant = 1368.0_wp !< solar constant at top of atmosphere
[1585]	183
[1691]	184	REAL(wp) :: albedo = 9999999.9_wp, & !< NAMELIST alpha
	185	albedo_lw_dif = 9999999.9_wp, & !< NAMELIST aldif
	186	albedo_lw_dir = 9999999.9_wp, & !< NAMELIST aldir
	187	albedo_sw_dif = 9999999.9_wp, & !< NAMELIST asdif
	188	albedo_sw_dir = 9999999.9_wp, & !< NAMELIST asdir
	189	decl_1, & !< declination coef. 1
	190	decl_2, & !< declination coef. 2
	191	decl_3, & !< declination coef. 3
	192	dt_radiation = 0.0_wp, & !< radiation model timestep
	193	emissivity = 0.98_wp, & !< NAMELIST surface emissivity
	194	lambda = 0.0_wp, & !< longitude in degrees
	195	lon = 0.0_wp, & !< longitude in radians
	196	lat = 0.0_wp, & !< latitude in radians
	197	net_radiation = 0.0_wp, & !< net radiation at surface
	198	skip_time_do_radiation = 0.0_wp, & !< Radiation model is not called before this time
	199	sky_trans, & !< sky transmissivity
	200	time_radiation = 0.0_wp, & !< time since last call of radiation code
	201	time_utc, & !< current time in UTC
	202	time_utc_init = 43200.0_wp !< UTC time at model start (noon)
	203
[1682]	204	REAL(wp), DIMENSION(0:0) :: zenith !< solar zenith angle
[1585]	205
[1496]	206	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: &
[1682]	207	alpha, & !< surface broadband albedo (used for clear-sky scheme)
[1709]	208	rad_lw_out_change_0, & !< change in LW out due to change in surface temperature
[1682]	209	rad_net, & !< net radiation at the surface
	210	rad_net_av !< average of rad_net
[1496]	211
[1585]	212	!
	213	!-- Land surface albedos for solar zenith angle of 60Â° after Briegleb (1992)
	214	!-- (shortwave, longwave, broadband): sw, lw, bb,
[1587]	215	REAL(wp), DIMENSION(0:2,1:16), PARAMETER :: albedo_pars = RESHAPE( (/&
[1585]	216	0.06_wp, 0.06_wp, 0.06_wp, & ! 1
	217	0.09_wp, 0.28_wp, 0.19_wp, & ! 2
	218	0.11_wp, 0.33_wp, 0.23_wp, & ! 3
	219	0.11_wp, 0.33_wp, 0.23_wp, & ! 4
	220	0.14_wp, 0.34_wp, 0.25_wp, & ! 5
	221	0.06_wp, 0.22_wp, 0.14_wp, & ! 6
	222	0.06_wp, 0.27_wp, 0.17_wp, & ! 7
	223	0.06_wp, 0.31_wp, 0.19_wp, & ! 8
	224	0.06_wp, 0.22_wp, 0.14_wp, & ! 9
	225	0.06_wp, 0.28_wp, 0.18_wp, & ! 10
	226	0.35_wp, 0.51_wp, 0.43_wp, & ! 11
	227	0.24_wp, 0.40_wp, 0.32_wp, & ! 12
	228	0.10_wp, 0.27_wp, 0.19_wp, & ! 13
	229	0.90_wp, 0.65_wp, 0.77_wp, & ! 14
[1587]	230	0.90_wp, 0.65_wp, 0.77_wp, & ! 15
	231	0.95_wp, 0.70_wp, 0.82_wp & ! 16
	232	/), (/ 3, 16 /) )
[1496]	233
[1585]	234	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE, TARGET :: &
[1691]	235	rad_lw_cs_hr, & !< longwave clear sky radiation heating rate (K/s)
	236	rad_lw_cs_hr_av, & !< average of rad_lw_cs_hr
	237	rad_lw_hr, & !< longwave radiation heating rate (K/s)
	238	rad_lw_hr_av, & !< average of rad_sw_hr
	239	rad_lw_in, & !< incoming longwave radiation (W/m2)
	240	rad_lw_in_av, & !< average of rad_lw_in
	241	rad_lw_out, & !< outgoing longwave radiation (W/m2)
	242	rad_lw_out_av, & !< average of rad_lw_out
	243	rad_sw_cs_hr, & !< shortwave clear sky radiation heating rate (K/s)
	244	rad_sw_cs_hr_av, & !< average of rad_sw_cs_hr
	245	rad_sw_hr, & !< shortwave radiation heating rate (K/s)
	246	rad_sw_hr_av, & !< average of rad_sw_hr
[1682]	247	rad_sw_in, & !< incoming shortwave radiation (W/m2)
	248	rad_sw_in_av, & !< average of rad_sw_in
	249	rad_sw_out, & !< outgoing shortwave radiation (W/m2)
[1691]	250	rad_sw_out_av !< average of rad_sw_out
[1585]	251
[1691]	252
[1585]	253	!
	254	!-- Variables and parameters used in RRTMG only
	255	#if defined ( __rrtmg )
[1682]	256	CHARACTER(LEN=12) :: rrtm_input_file = "RAD_SND_DATA" !< name of the NetCDF input file (sounding data)
[1585]	257
	258
	259	!
	260	!-- Flag parameters for RRTMGS (should not be changed)
[1682]	261	INTEGER(iwp), PARAMETER :: rrtm_inflglw = 2, & !< flag for lw cloud optical properties (0,1,2)
	262	rrtm_iceflglw = 0, & !< flag for lw ice particle specifications (0,1,2,3)
	263	rrtm_liqflglw = 1, & !< flag for lw liquid droplet specifications
	264	rrtm_inflgsw = 2, & !< flag for sw cloud optical properties (0,1,2)
	265	rrtm_iceflgsw = 0, & !< flag for sw ice particle specifications (0,1,2,3)
	266	rrtm_liqflgsw = 1 !< flag for sw liquid droplet specifications
[1585]	267
	268	!
	269	!-- The following variables should be only changed with care, as this will
	270	!-- require further setting of some variables, which is currently not
	271	!-- implemented (aerosols, ice phase).
[1682]	272	INTEGER(iwp) :: nzt_rad, & !< upper vertical limit for radiation calculations
	273	rrtm_icld = 0, & !< cloud flag (0: clear sky column, 1: cloudy column)
	274	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]	275	rrtm_idrv = 1 !< longwave upward flux calculation option (0,1)
[1585]	276
[1682]	277	LOGICAL :: snd_exists = .FALSE. !< flag parameter to check whether a user-defined input files exists
[1585]	278
[1691]	279	REAL(wp), PARAMETER :: mol_mass_air_d_wv = 1.607793_wp !< molecular weight dry air / water vapor
[1585]	280
[1682]	281	REAL(wp), DIMENSION(:), ALLOCATABLE :: hyp_snd, & !< hypostatic pressure from sounding data (hPa)
	282	q_snd, & !< specific humidity from sounding data (kg/kg) - dummy at the moment
	283	rrtm_tsfc, & !< dummy array for storing surface temperature
	284	t_snd !< actual temperature from sounding data (hPa)
[1585]	285
[1691]	286	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: aldif, & !< longwave diffuse albedo solar angle of 60Â°
	287	aldir, & !< longwave direct albedo solar angle of 60Â°
	288	asdif, & !< shortwave diffuse albedo solar angle of 60Â°
	289	asdir, & !< shortwave direct albedo solar angle of 60Â°
	290	rrtm_ccl4vmr, & !< CCL4 volume mixing ratio (g/mol)
	291	rrtm_cfc11vmr, & !< CFC11 volume mixing ratio (g/mol)
	292	rrtm_cfc12vmr, & !< CFC12 volume mixing ratio (g/mol)
	293	rrtm_cfc22vmr, & !< CFC22 volume mixing ratio (g/mol)
	294	rrtm_ch4vmr, & !< CH4 volume mixing ratio
	295	rrtm_cicewp, & !< in-cloud ice water path (g/mÂ²)
	296	rrtm_cldfr, & !< cloud fraction (0,1)
	297	rrtm_cliqwp, & !< in-cloud liquid water path (g/mÂ²)
	298	rrtm_co2vmr, & !< CO2 volume mixing ratio (g/mol)
	299	rrtm_emis, & !< surface emissivity (0-1)
	300	rrtm_h2ovmr, & !< H2O volume mixing ratio
	301	rrtm_n2ovmr, & !< N2O volume mixing ratio
	302	rrtm_o2vmr, & !< O2 volume mixing ratio
	303	rrtm_o3vmr, & !< O3 volume mixing ratio
	304	rrtm_play, & !< pressure layers (hPa, zu-grid)
	305	rrtm_plev, & !< pressure layers (hPa, zw-grid)
	306	rrtm_reice, & !< cloud ice effective radius (microns)
	307	rrtm_reliq, & !< cloud water drop effective radius (microns)
	308	rrtm_tlay, & !< actual temperature (K, zu-grid)
	309	rrtm_tlev, & !< actual temperature (K, zw-grid)
	310	rrtm_lwdflx, & !< RRTM output of incoming longwave radiation flux (W/m2)
	311	rrtm_lwdflxc, & !< RRTM output of outgoing clear sky longwave radiation flux (W/m2)
	312	rrtm_lwuflx, & !< RRTM output of outgoing longwave radiation flux (W/m2)
	313	rrtm_lwuflxc, & !< RRTM output of incoming clear sky longwave radiation flux (W/m2)
	314	rrtm_lwuflx_dt, & !< RRTM output of incoming clear sky longwave radiation flux (W/m2)
	315	rrtm_lwuflxc_dt,& !< RRTM output of outgoing clear sky longwave radiation flux (W/m2)
	316	rrtm_lwhr, & !< RRTM output of longwave radiation heating rate (K/d)
	317	rrtm_lwhrc, & !< RRTM output of incoming longwave clear sky radiation heating rate (K/d)
	318	rrtm_swdflx, & !< RRTM output of incoming shortwave radiation flux (W/m2)
	319	rrtm_swdflxc, & !< RRTM output of outgoing clear sky shortwave radiation flux (W/m2)
	320	rrtm_swuflx, & !< RRTM output of outgoing shortwave radiation flux (W/m2)
	321	rrtm_swuflxc, & !< RRTM output of incoming clear sky shortwave radiation flux (W/m2)
	322	rrtm_swhr, & !< RRTM output of shortwave radiation heating rate (K/d)
	323	rrtm_swhrc !< RRTM output of incoming shortwave clear sky radiation heating rate (K/d)
[1585]	324
	325	!
	326	!-- Definition of arrays that are currently not used for calling RRTMG (due to setting of flag parameters)
[1682]	327	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: rad_lw_cs_in, & !< incoming clear sky longwave radiation (W/m2) (not used)
	328	rad_lw_cs_out, & !< outgoing clear sky longwave radiation (W/m2) (not used)
	329	rad_sw_cs_in, & !< incoming clear sky shortwave radiation (W/m2) (not used)
	330	rad_sw_cs_out, & !< outgoing clear sky shortwave radiation (W/m2) (not used)
	331	rrtm_aldif, & !< surface albedo for longwave diffuse radiation
	332	rrtm_aldir, & !< surface albedo for longwave direct radiation
	333	rrtm_asdif, & !< surface albedo for shortwave diffuse radiation
	334	rrtm_asdir, & !< surface albedo for shortwave direct radiation
	335	rrtm_lw_tauaer, & !< lw aerosol optical depth
	336	rrtm_lw_taucld, & !< lw in-cloud optical depth
	337	rrtm_sw_taucld, & !< sw in-cloud optical depth
	338	rrtm_sw_ssacld, & !< sw in-cloud single scattering albedo
	339	rrtm_sw_asmcld, & !< sw in-cloud asymmetry parameter
	340	rrtm_sw_fsfcld, & !< sw in-cloud forward scattering fraction
	341	rrtm_sw_tauaer, & !< sw aerosol optical depth
	342	rrtm_sw_ssaaer, & !< sw aerosol single scattering albedo
	343	rrtm_sw_asmaer, & !< sw aerosol asymmetry parameter
	344	rrtm_sw_ecaer !< sw aerosol optical detph at 0.55 microns (rrtm_iaer = 6 only)
[1691]	345
[1585]	346	#endif
	347
[1496]	348	INTERFACE init_radiation
	349	MODULE PROCEDURE init_radiation
	350	END INTERFACE init_radiation
	351
[1551]	352	INTERFACE radiation_clearsky
	353	MODULE PROCEDURE radiation_clearsky
	354	END INTERFACE radiation_clearsky
[1496]	355
[1585]	356	INTERFACE radiation_rrtmg
	357	MODULE PROCEDURE radiation_rrtmg
	358	END INTERFACE radiation_rrtmg
[1551]	359
[1585]	360	INTERFACE radiation_tendency
	361	MODULE PROCEDURE radiation_tendency
	362	MODULE PROCEDURE radiation_tendency_ij
	363	END INTERFACE radiation_tendency
[1551]	364
[1496]	365	SAVE
	366
	367	PRIVATE
	368
[1585]	369	PUBLIC albedo, albedo_type, albedo_type_name, albedo_lw_dif, albedo_lw_dir,&
	370	albedo_sw_dif, albedo_sw_dir, constant_albedo, day_init, dots_rad, &
[1691]	371	dt_radiation, emissivity, force_radiation_call, init_radiation, &
	372	lambda, lw_radiation, net_radiation, rad_net, rad_net_av, radiation,&
	373	radiation_clearsky, radiation_rrtmg, radiation_scheme, &
	374	radiation_tendency, rad_lw_in, rad_lw_in_av, rad_lw_out, &
[1709]	375	rad_lw_out_av, rad_lw_out_change_0, rad_lw_cs_hr, rad_lw_cs_hr_av, &
	376	rad_lw_hr, rad_lw_hr_av, rad_sw_in, rad_sw_in_av, rad_sw_out, &
	377	rad_sw_out_av, rad_sw_cs_hr, rad_sw_cs_hr_av, rad_sw_hr, &
	378	rad_sw_hr_av, sigma_sb, skip_time_do_radiation, sw_radiation, &
[1757]	379	time_radiation, time_utc_init, unscheduled_radiation_calls
[1496]	380
[1691]	381
[1585]	382	#if defined ( __rrtmg )
[1709]	383	PUBLIC rrtm_aldif, rrtm_aldir, rrtm_asdif, rrtm_asdir, rrtm_idrv
[1585]	384	#endif
[1496]	385
	386	CONTAINS
	387
	388	!------------------------------------------------------------------------------!
	389	! Description:
	390	! ------------
[1682]	391	!> Initialization of the radiation model
[1496]	392	!------------------------------------------------------------------------------!
	393	SUBROUTINE init_radiation
	394
	395	IMPLICIT NONE
	396
[1585]	397	!
	398	!-- Allocate array for storing the surface net radiation
	399	IF ( .NOT. ALLOCATED ( rad_net ) ) THEN
	400	ALLOCATE ( rad_net(nysg:nyng,nxlg:nxrg) )
	401	rad_net = 0.0_wp
	402	ENDIF
[1496]	403
	404	!
[1709]	405	!-- Allocate array for storing the surface net radiation
	406	IF ( .NOT. ALLOCATED ( rad_lw_out_change_0 ) ) THEN
	407	ALLOCATE ( rad_lw_out_change_0(nysg:nyng,nxlg:nxrg) )
	408	rad_lw_out_change_0 = 0.0_wp
	409	ENDIF
	410
	411	!
[1551]	412	!-- Fix net radiation in case of radiation_scheme = 'constant'
[1585]	413	IF ( radiation_scheme == 'constant' ) THEN
[1551]	414	rad_net = net_radiation
[1585]	415	radiation = .FALSE.
[1551]	416	!
[1585]	417	!-- Calculate orbital constants
	418	ELSE
[1551]	419	decl_1 = SIN(23.45_wp * pi / 180.0_wp)
	420	decl_2 = 2.0_wp * pi / 365.0_wp
	421	decl_3 = decl_2 * 81.0_wp
[1585]	422	lat = phi * pi / 180.0_wp
	423	lon = lambda * pi / 180.0_wp
	424	ENDIF
	425
	426
	427	IF ( radiation_scheme == 'clear-sky' ) THEN
	428
	429	ALLOCATE ( alpha(nysg:nyng,nxlg:nxrg) )
	430
	431	IF ( .NOT. ALLOCATED ( rad_sw_in ) ) THEN
	432	ALLOCATE ( rad_sw_in(0:0,nysg:nyng,nxlg:nxrg) )
	433	ENDIF
	434	IF ( .NOT. ALLOCATED ( rad_sw_out ) ) THEN
	435	ALLOCATE ( rad_sw_out(0:0,nysg:nyng,nxlg:nxrg) )
	436	ENDIF
	437
	438	IF ( .NOT. ALLOCATED ( rad_sw_in_av ) ) THEN
	439	ALLOCATE ( rad_sw_in_av(0:0,nysg:nyng,nxlg:nxrg) )
	440	ENDIF
	441	IF ( .NOT. ALLOCATED ( rad_sw_out_av ) ) THEN
	442	ALLOCATE ( rad_sw_out_av(0:0,nysg:nyng,nxlg:nxrg) )
	443	ENDIF
	444
	445	IF ( .NOT. ALLOCATED ( rad_lw_in ) ) THEN
	446	ALLOCATE ( rad_lw_in(0:0,nysg:nyng,nxlg:nxrg) )
	447	ENDIF
	448	IF ( .NOT. ALLOCATED ( rad_lw_out ) ) THEN
	449	ALLOCATE ( rad_lw_out(0:0,nysg:nyng,nxlg:nxrg) )
	450	ENDIF
	451
	452	IF ( .NOT. ALLOCATED ( rad_lw_in_av ) ) THEN
	453	ALLOCATE ( rad_lw_in_av(0:0,nysg:nyng,nxlg:nxrg) )
	454	ENDIF
	455	IF ( .NOT. ALLOCATED ( rad_lw_out_av ) ) THEN
	456	ALLOCATE ( rad_lw_out_av(0:0,nysg:nyng,nxlg:nxrg) )
	457	ENDIF
	458
	459	rad_sw_in = 0.0_wp
	460	rad_sw_out = 0.0_wp
	461	rad_lw_in = 0.0_wp
	462	rad_lw_out = 0.0_wp
	463
[1496]	464	!
[1585]	465	!-- Overwrite albedo if manually set in parameter file
	466	IF ( albedo_type /= 0 .AND. albedo == 9999999.9_wp ) THEN
	467	albedo = albedo_pars(2,albedo_type)
	468	ENDIF
	469
	470	alpha = albedo
	471
	472	!
	473	!-- Initialization actions for RRTMG
	474	ELSEIF ( radiation_scheme == 'rrtmg' ) THEN
	475	#if defined ( __rrtmg )
	476	!
	477	!-- Allocate albedos
	478	ALLOCATE ( rrtm_aldif(0:0,nysg:nyng,nxlg:nxrg) )
	479	ALLOCATE ( rrtm_aldir(0:0,nysg:nyng,nxlg:nxrg) )
	480	ALLOCATE ( rrtm_asdif(0:0,nysg:nyng,nxlg:nxrg) )
	481	ALLOCATE ( rrtm_asdir(0:0,nysg:nyng,nxlg:nxrg) )
	482	ALLOCATE ( aldif(nysg:nyng,nxlg:nxrg) )
	483	ALLOCATE ( aldir(nysg:nyng,nxlg:nxrg) )
	484	ALLOCATE ( asdif(nysg:nyng,nxlg:nxrg) )
	485	ALLOCATE ( asdir(nysg:nyng,nxlg:nxrg) )
	486
	487	IF ( albedo_type /= 0 ) THEN
	488	IF ( albedo_lw_dif == 9999999.9_wp ) THEN
	489	albedo_lw_dif = albedo_pars(0,albedo_type)
	490	albedo_lw_dir = albedo_lw_dif
	491	ENDIF
	492	IF ( albedo_sw_dif == 9999999.9_wp ) THEN
	493	albedo_sw_dif = albedo_pars(1,albedo_type)
	494	albedo_sw_dir = albedo_sw_dif
	495	ENDIF
	496	ENDIF
	497
	498	aldif(:,:) = albedo_lw_dif
	499	aldir(:,:) = albedo_lw_dir
	500	asdif(:,:) = albedo_sw_dif
	501	asdir(:,:) = albedo_sw_dir
	502	!
	503	!-- Calculate initial values of current (cosine of) the zenith angle and
	504	!-- whether the sun is up
	505	CALL calc_zenith
	506	!
	507	!-- Calculate initial surface albedo
	508	IF ( .NOT. constant_albedo ) THEN
	509	CALL calc_albedo
	510	ELSE
	511	rrtm_aldif(0,:,:) = aldif(:,:)
	512	rrtm_aldir(0,:,:) = aldir(:,:)
	513	rrtm_asdif(0,:,:) = asdif(:,:)
	514	rrtm_asdir(0,:,:) = asdir(:,:)
	515	ENDIF
	516
	517	!
	518	!-- Allocate surface emissivity
	519	ALLOCATE ( rrtm_emis(0:0,1:nbndlw+1) )
	520	rrtm_emis = emissivity
	521
	522	!
	523	!-- Allocate 3d arrays of radiative fluxes and heating rates
	524	IF ( .NOT. ALLOCATED ( rad_sw_in ) ) THEN
	525	ALLOCATE ( rad_sw_in(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	526	rad_sw_in = 0.0_wp
	527	ENDIF
	528
	529	IF ( .NOT. ALLOCATED ( rad_sw_in_av ) ) THEN
	530	ALLOCATE ( rad_sw_in_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	531	ENDIF
	532
	533	IF ( .NOT. ALLOCATED ( rad_sw_out ) ) THEN
	534	ALLOCATE ( rad_sw_out(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1691]	535	rad_sw_out = 0.0_wp
[1585]	536	ENDIF
	537
	538	IF ( .NOT. ALLOCATED ( rad_sw_out_av ) ) THEN
	539	ALLOCATE ( rad_sw_out_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	540	ENDIF
	541
[1691]	542	IF ( .NOT. ALLOCATED ( rad_sw_hr ) ) THEN
	543	ALLOCATE ( rad_sw_hr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	544	rad_sw_hr = 0.0_wp
	545	ENDIF
[1585]	546
[1691]	547	IF ( .NOT. ALLOCATED ( rad_sw_hr_av ) ) THEN
	548	ALLOCATE ( rad_sw_hr_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	549	rad_sw_hr_av = 0.0_wp
	550	ENDIF
	551
	552	IF ( .NOT. ALLOCATED ( rad_sw_cs_hr ) ) THEN
	553	ALLOCATE ( rad_sw_cs_hr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	554	rad_sw_cs_hr = 0.0_wp
	555	ENDIF
	556
	557	IF ( .NOT. ALLOCATED ( rad_sw_cs_hr_av ) ) THEN
	558	ALLOCATE ( rad_sw_cs_hr_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	559	rad_sw_cs_hr_av = 0.0_wp
	560	ENDIF
	561
[1585]	562	IF ( .NOT. ALLOCATED ( rad_lw_in ) ) THEN
	563	ALLOCATE ( rad_lw_in(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	564	rad_lw_in = 0.0_wp
	565	ENDIF
	566
	567	IF ( .NOT. ALLOCATED ( rad_lw_in_av ) ) THEN
	568	ALLOCATE ( rad_lw_in_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	569	ENDIF
	570
	571	IF ( .NOT. ALLOCATED ( rad_lw_out ) ) THEN
	572	ALLOCATE ( rad_lw_out(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	573	rad_lw_out = 0.0_wp
	574	ENDIF
	575
	576	IF ( .NOT. ALLOCATED ( rad_lw_out_av ) ) THEN
	577	ALLOCATE ( rad_lw_out_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	578	ENDIF
	579
[1691]	580	IF ( .NOT. ALLOCATED ( rad_lw_hr ) ) THEN
	581	ALLOCATE ( rad_lw_hr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	582	rad_lw_hr = 0.0_wp
	583	ENDIF
	584
	585	IF ( .NOT. ALLOCATED ( rad_lw_hr_av ) ) THEN
	586	ALLOCATE ( rad_lw_hr_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	587	rad_lw_hr_av = 0.0_wp
	588	ENDIF
	589
	590	IF ( .NOT. ALLOCATED ( rad_lw_cs_hr ) ) THEN
	591	ALLOCATE ( rad_lw_cs_hr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	592	rad_lw_cs_hr = 0.0_wp
	593	ENDIF
	594
	595	IF ( .NOT. ALLOCATED ( rad_lw_cs_hr_av ) ) THEN
	596	ALLOCATE ( rad_lw_cs_hr_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	597	rad_lw_cs_hr_av = 0.0_wp
	598	ENDIF
	599
	600	ALLOCATE ( rad_sw_cs_in(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	601	ALLOCATE ( rad_sw_cs_out(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1585]	602	rad_sw_cs_in = 0.0_wp
	603	rad_sw_cs_out = 0.0_wp
	604
[1691]	605	ALLOCATE ( rad_lw_cs_in(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	606	ALLOCATE ( rad_lw_cs_out(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1585]	607	rad_lw_cs_in = 0.0_wp
	608	rad_lw_cs_out = 0.0_wp
	609
	610	!
	611	!-- Allocate dummy array for storing surface temperature
	612	ALLOCATE ( rrtm_tsfc(1) )
	613
	614	!
	615	!-- Initialize RRTMG
	616	IF ( lw_radiation ) CALL rrtmg_lw_ini ( cp )
	617	IF ( sw_radiation ) CALL rrtmg_sw_ini ( cp )
	618
	619	!
	620	!-- Set input files for RRTMG
	621	INQUIRE(FILE="RAD_SND_DATA", EXIST=snd_exists)
	622	IF ( .NOT. snd_exists ) THEN
	623	rrtm_input_file = "rrtmg_lw.nc"
	624	ENDIF
	625
	626	!
	627	!-- Read vertical layers for RRTMG from sounding data
	628	!-- The routine provides nzt_rad, hyp_snd(1:nzt_rad),
	629	!-- t_snd(nzt+2:nzt_rad), rrtm_play(1:nzt_rad), rrtm_plev(1_nzt_rad+1),
	630	!-- rrtm_tlay(nzt+2:nzt_rad), rrtm_tlev(nzt+2:nzt_rad+1)
	631	CALL read_sounding_data
	632
	633	!
	634	!-- Read trace gas profiles from file. This routine provides
	635	!-- the rrtm_ arrays (1:nzt_rad+1)
	636	CALL read_trace_gas_data
	637	#endif
[1551]	638	ENDIF
[1585]	639
[1551]	640	!
[1585]	641	!-- Perform user actions if required
	642	CALL user_init_radiation
	643
	644
	645	!
[1551]	646	!-- Add timeseries for radiation model
[1585]	647	dots_rad = dots_num + 1
[1691]	648	dots_num = dots_num + 5
[1496]	649
[1701]	650	dots_label(dots_rad) = "rad_net"
	651	dots_label(dots_rad+1) = "rad_lw_in"
	652	dots_label(dots_rad+2) = "rad_lw_out"
	653	dots_label(dots_rad+3) = "rad_sw_in"
	654	dots_label(dots_rad+4) = "rad_sw_out"
[1691]	655	dots_unit(dots_rad:dots_rad+4) = "W/m2"
	656
[1585]	657	!
	658	!-- Output of albedos is only required for RRTMG
	659	IF ( radiation_scheme == 'rrtmg' ) THEN
	660	dots_num = dots_num + 4
[1691]	661	dots_label(dots_rad+5) = "rrtm_aldif"
	662	dots_label(dots_rad+6) = "rrtm_aldir"
	663	dots_label(dots_rad+7) = "rrtm_asdif"
	664	dots_label(dots_rad+8) = "rrtm_asdir"
	665	dots_unit(dots_num+5:dots_num+8) = ""
	666
[1585]	667	ENDIF
[1551]	668
[1585]	669	!
	670	!-- Calculate radiative fluxes at model start
	671	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	672	IF ( radiation_scheme == 'clear-sky' ) THEN
[1709]	673	CALL radiation_clearsky
[1585]	674	ELSEIF ( radiation_scheme == 'rrtmg' ) THEN
	675	CALL radiation_rrtmg
	676	ENDIF
	677	ENDIF
	678
[1496]	679	RETURN
	680
	681	END SUBROUTINE init_radiation
	682
	683
	684	!------------------------------------------------------------------------------!
	685	! Description:
	686	! ------------
[1682]	687	!> A simple clear sky radiation model
[1496]	688	!------------------------------------------------------------------------------!
[1551]	689	SUBROUTINE radiation_clearsky
[1496]	690
[1585]	691	USE indices, &
	692	ONLY: nbgp
	693
[1496]	694	IMPLICIT NONE
	695
[1691]	696	INTEGER(iwp) :: i, j, k !< loop indices
	697	REAL(wp) :: exn, & !< Exner functions at surface
[1709]	698	exn1, & !< Exner functions at first grid level
	699	pt1 !< potential temperature at first grid level
[1585]	700
[1496]	701	!
[1585]	702	!-- Calculate current zenith angle
	703	CALL calc_zenith
	704
	705	!
	706	!-- Calculate sky transmissivity
	707	sky_trans = 0.6_wp + 0.2_wp * zenith(0)
	708
	709	!
	710	!-- Calculate value of the Exner function
	711	exn = (surface_pressure / 1000.0_wp )**0.286_wp
	712	!
	713	!-- Calculate radiation fluxes and net radiation (rad_net) for each grid
	714	!-- point
[1709]	715	DO i = nxlg, nxrg
	716	DO j = nysg, nyng
[1585]	717	k = nzb_s_inner(j,i)
[1691]	718
[1709]	719	exn1 = (hyp(k+1) / 100000.0_wp )**0.286_wp
[1691]	720
[1585]	721	rad_sw_in(0,j,i) = solar_constant * sky_trans * zenith(0)
	722	rad_sw_out(0,j,i) = alpha(j,i) * rad_sw_in(0,j,i)
[1691]	723	rad_lw_out(0,j,i) = emissivity * sigma_sb * (pt(k,j,i) * exn)**4
[1585]	724
[1691]	725	IF ( cloud_physics ) THEN
[1709]	726	pt1 = pt(k+1,j,i) + l_d_cp / exn1 * ql(k+1,j,i)
	727	rad_lw_in(0,j,i) = 0.8_wp * sigma_sb * (pt1 * exn1)**4
[1691]	728	ELSE
[1709]	729	rad_lw_in(0,j,i) = 0.8_wp * sigma_sb * (pt(k+1,j,i) * exn1)**4
[1691]	730	ENDIF
	731
	732	rad_net(j,i) = rad_sw_in(0,j,i) - rad_sw_out(0,j,i) &
	733	+ rad_lw_in(0,j,i) - rad_lw_out(0,j,i)
	734
[1585]	735	ENDDO
	736	ENDDO
	737
	738	END SUBROUTINE radiation_clearsky
	739
	740
	741	!------------------------------------------------------------------------------!
	742	! Description:
	743	! ------------
[1682]	744	!> Implementation of the RRTMG radiation_scheme
[1585]	745	!------------------------------------------------------------------------------!
	746	SUBROUTINE radiation_rrtmg
	747
	748	USE indices, &
	749	ONLY: nbgp
	750
	751	USE particle_attributes, &
	752	ONLY: grid_particles, number_of_particles, particles, &
	753	particle_advection_start, prt_count
	754
	755	IMPLICIT NONE
	756
	757	#if defined ( __rrtmg )
	758
[1691]	759	INTEGER(iwp) :: i, j, k, n !< loop indices
[1585]	760
[1691]	761	REAL(wp) :: s_r2, & !< weighted sum over all droplets with r^2
	762	s_r3 !< weighted sum over all droplets with r^3
[1585]	763
	764	!
	765	!-- Calculate current (cosine of) zenith angle and whether the sun is up
	766	CALL calc_zenith
	767	!
	768	!-- Calculate surface albedo
	769	IF ( .NOT. constant_albedo ) THEN
	770	CALL calc_albedo
	771	ENDIF
	772
	773	!
	774	!-- Prepare input data for RRTMG
	775
	776	!
	777	!-- In case of large scale forcing with surface data, calculate new pressure
	778	!-- profile. nzt_rad might be modified by these calls and all required arrays
	779	!-- will then be re-allocated
[1691]	780	IF ( large_scale_forcing .AND. lsf_surf ) THEN
[1585]	781	CALL read_sounding_data
	782	CALL read_trace_gas_data
	783	ENDIF
	784	!
	785	!-- Loop over all grid points
	786	DO i = nxl, nxr
	787	DO j = nys, nyn
	788
	789	!
	790	!-- Prepare profiles of temperature and H2O volume mixing ratio
[1691]	791	rrtm_tlev(0,nzb+1) = pt(nzb,j,i) * ( surface_pressure &
	792	/ 1000.0_wp )**0.286_wp
[1585]	793
	794	DO k = nzb+1, nzt+1
	795	rrtm_tlay(0,k) = pt(k,j,i) * ( (hyp(k) ) / 100000.0_wp &
[1691]	796	)*0.286_wp + l_d_cp ql(k,j,i)
	797	rrtm_h2ovmr(0,k) = mol_mass_air_d_wv * (q(k,j,i) - ql(k,j,i))
[1585]	798
	799	ENDDO
	800
	801	!
	802	!-- Avoid temperature/humidity jumps at the top of the LES domain by
	803	!-- linear interpolation from nzt+2 to nzt+7
	804	DO k = nzt+2, nzt+7
	805	rrtm_tlay(0,k) = rrtm_tlay(0,nzt+1) &
	806	+ ( rrtm_tlay(0,nzt+8) - rrtm_tlay(0,nzt+1) ) &
	807	/ ( rrtm_play(0,nzt+8) - rrtm_play(0,nzt+1) ) &
	808	* ( rrtm_play(0,k) - rrtm_play(0,nzt+1) )
	809
	810	rrtm_h2ovmr(0,k) = rrtm_h2ovmr(0,nzt+1) &
	811	+ ( rrtm_h2ovmr(0,nzt+8) - rrtm_h2ovmr(0,nzt+1) )&
	812	/ ( rrtm_play(0,nzt+8) - rrtm_play(0,nzt+1) )&
	813	* ( rrtm_play(0,k) - rrtm_play(0,nzt+1) )
	814
	815	ENDDO
	816
	817	!-- Linear interpolate to zw grid
	818	DO k = nzb+2, nzt+8
	819	rrtm_tlev(0,k) = rrtm_tlay(0,k-1) + (rrtm_tlay(0,k) - &
	820	rrtm_tlay(0,k-1)) &
	821	/ ( rrtm_play(0,k) - rrtm_play(0,k-1) ) &
	822	* ( rrtm_plev(0,k) - rrtm_play(0,k-1) )
	823	ENDDO
	824
	825
	826	!
	827	!-- Calculate liquid water path and cloud fraction for each column.
	828	!-- Note that LWP is required in g/mÂ² instead of kg/kg m.
	829	rrtm_cldfr = 0.0_wp
	830	rrtm_reliq = 0.0_wp
	831	rrtm_cliqwp = 0.0_wp
[1691]	832	rrtm_icld = 0
[1585]	833
	834	DO k = nzb+1, nzt+1
[1691]	835	rrtm_cliqwp(0,k) = ql(k,j,i) * 1000.0_wp * &
	836	(rrtm_plev(0,k) - rrtm_plev(0,k+1)) &
	837	* 100.0_wp / g
[1585]	838
[1691]	839	IF ( rrtm_cliqwp(0,k) > 0.0_wp ) THEN
[1585]	840	rrtm_cldfr(0,k) = 1.0_wp
[1691]	841	IF ( rrtm_icld == 0 ) rrtm_icld = 1
[1585]	842
	843	!
	844	!-- Calculate cloud droplet effective radius
	845	IF ( cloud_physics ) THEN
[1691]	846	rrtm_reliq(0,k) = 1.0E6_wp * ( 3.0_wp * ql(k,j,i) &
	847	* rho_surface &
	848	/ ( 4.0_wp * pi * nc_const * rho_l ) &
	849	)**0.33333333333333_wp &
	850	* EXP( LOG( sigma_gc )**2 )
[1585]	851
	852	ELSEIF ( cloud_droplets ) THEN
	853	number_of_particles = prt_count(k,j,i)
	854
	855	IF (number_of_particles <= 0) CYCLE
	856	particles => grid_particles(k,j,i)%particles(1:number_of_particles)
	857	s_r2 = 0.0_wp
	858	s_r3 = 0.0_wp
	859
	860	DO n = 1, number_of_particles
	861	IF ( particles(n)%particle_mask ) THEN
	862	s_r2 = s_r2 + particles(n)%radius*2 &
	863	particles(n)%weight_factor
	864	s_r3 = s_r3 + particles(n)%radius*3 &
	865	particles(n)%weight_factor
	866	ENDIF
	867	ENDDO
	868
	869	IF ( s_r2 > 0.0_wp ) rrtm_reliq(0,k) = s_r3 / s_r2
	870
	871	ENDIF
	872
	873	!
	874	!-- Limit effective radius
[1691]	875	IF ( rrtm_reliq(0,k) > 0.0_wp ) THEN
[1585]	876	rrtm_reliq(0,k) = MAX(rrtm_reliq(0,k),2.5_wp)
	877	rrtm_reliq(0,k) = MIN(rrtm_reliq(0,k),60.0_wp)
	878	ENDIF
	879	ENDIF
	880	ENDDO
	881
	882	!
	883	!-- Set surface temperature
	884	rrtm_tsfc = pt(nzb,j,i) * (surface_pressure / 1000.0_wp )**0.286_wp
	885
	886	IF ( lw_radiation ) THEN
	887	CALL rrtmg_lw( 1, nzt_rad , rrtm_icld , rrtm_idrv ,&
	888	rrtm_play , rrtm_plev , rrtm_tlay , rrtm_tlev ,&
	889	rrtm_tsfc , rrtm_h2ovmr , rrtm_o3vmr , rrtm_co2vmr ,&
	890	rrtm_ch4vmr , rrtm_n2ovmr , rrtm_o2vmr , rrtm_cfc11vmr ,&
	891	rrtm_cfc12vmr , rrtm_cfc22vmr, rrtm_ccl4vmr , rrtm_emis ,&
	892	rrtm_inflglw , rrtm_iceflglw, rrtm_liqflglw, rrtm_cldfr ,&
	893	rrtm_lw_taucld , rrtm_cicewp , rrtm_cliqwp , rrtm_reice ,&
	894	rrtm_reliq , rrtm_lw_tauaer, &
	895	rrtm_lwuflx , rrtm_lwdflx , rrtm_lwhr , &
[1691]	896	rrtm_lwuflxc , rrtm_lwdflxc , rrtm_lwhrc , &
	897	rrtm_lwuflx_dt , rrtm_lwuflxc_dt )
[1585]	898
[1691]	899	!
	900	!-- Save fluxes
[1585]	901	DO k = nzb, nzt+1
	902	rad_lw_in(k,j,i) = rrtm_lwdflx(0,k)
	903	rad_lw_out(k,j,i) = rrtm_lwuflx(0,k)
	904	ENDDO
	905
[1691]	906	!
	907	!-- Save heating rates (convert from K/d to K/h)
	908	DO k = nzb+1, nzt+1
	909	rad_lw_hr(k,j,i) = rrtm_lwhr(0,k) * d_hours_day
	910	rad_lw_cs_hr(k,j,i) = rrtm_lwhrc(0,k) * d_hours_day
	911	ENDDO
[1585]	912
[1709]	913	!
	914	!-- Save change in LW heating rate
	915	rad_lw_out_change_0(j,i) = rrtm_lwuflx_dt(0,nzb)
	916
[1585]	917	ENDIF
	918
	919	IF ( sw_radiation .AND. sun_up ) THEN
	920	CALL rrtmg_sw( 1, nzt_rad , rrtm_icld , rrtm_iaer ,&
	921	rrtm_play , rrtm_plev , rrtm_tlay , rrtm_tlev ,&
	922	rrtm_tsfc , rrtm_h2ovmr , rrtm_o3vmr , rrtm_co2vmr ,&
	923	rrtm_ch4vmr , rrtm_n2ovmr , rrtm_o2vmr , rrtm_asdir(:,j,i),&
	924	rrtm_asdif(:,j,i), rrtm_aldir(:,j,i), rrtm_aldif(:,j,i), zenith,&
	925	0.0_wp , day , solar_constant, rrtm_inflgsw,&
	926	rrtm_iceflgsw , rrtm_liqflgsw, rrtm_cldfr , rrtm_sw_taucld ,&
	927	rrtm_sw_ssacld , rrtm_sw_asmcld, rrtm_sw_fsfcld, rrtm_cicewp ,&
	928	rrtm_cliqwp , rrtm_reice , rrtm_reliq , rrtm_sw_tauaer ,&
	929	rrtm_sw_ssaaer , rrtm_sw_asmaer , rrtm_sw_ecaer , &
	930	rrtm_swuflx , rrtm_swdflx , rrtm_swhr , &
	931	rrtm_swuflxc , rrtm_swdflxc , rrtm_swhrc )
	932
[1691]	933	!
	934	!-- Save fluxes
[1585]	935	DO k = nzb, nzt+1
	936	rad_sw_in(k,j,i) = rrtm_swdflx(0,k)
	937	rad_sw_out(k,j,i) = rrtm_swuflx(0,k)
	938	ENDDO
[1691]	939
	940	!
	941	!-- Save heating rates (convert from K/d to K/s)
	942	DO k = nzb+1, nzt+1
	943	rad_sw_hr(k,j,i) = rrtm_swhr(0,k) * d_hours_day
	944	rad_sw_cs_hr(k,j,i) = rrtm_swhrc(0,k) * d_hours_day
	945	ENDDO
	946
[1585]	947	ENDIF
	948
	949	!
	950	!-- Calculate surface net radiation
	951	rad_net(j,i) = rad_sw_in(nzb,j,i) - rad_sw_out(nzb,j,i) &
	952	+ rad_lw_in(nzb,j,i) - rad_lw_out(nzb,j,i)
	953
	954	ENDDO
	955	ENDDO
	956
	957	CALL exchange_horiz( rad_lw_in, nbgp )
	958	CALL exchange_horiz( rad_lw_out, nbgp )
[1691]	959	CALL exchange_horiz( rad_lw_hr, nbgp )
	960	CALL exchange_horiz( rad_lw_cs_hr, nbgp )
	961
[1585]	962	CALL exchange_horiz( rad_sw_in, nbgp )
	963	CALL exchange_horiz( rad_sw_out, nbgp )
[1691]	964	CALL exchange_horiz( rad_sw_hr, nbgp )
	965	CALL exchange_horiz( rad_sw_cs_hr, nbgp )
	966
[1585]	967	CALL exchange_horiz_2d( rad_net, nbgp )
[1709]	968	CALL exchange_horiz_2d( rad_lw_out_change_0, nbgp )
[1585]	969	#endif
	970
	971	END SUBROUTINE radiation_rrtmg
	972
	973
	974	!------------------------------------------------------------------------------!
	975	! Description:
	976	! ------------
[1682]	977	!> Calculate the cosine of the zenith angle (variable is called zenith)
[1585]	978	!------------------------------------------------------------------------------!
	979	SUBROUTINE calc_zenith
	980
	981	IMPLICIT NONE
	982
[1682]	983	REAL(wp) :: declination, & !< solar declination angle
	984	hour_angle !< solar hour angle
[1585]	985	!
[1496]	986	!-- Calculate current day and time based on the initial values and simulation
	987	!-- time
[1585]	988	day = day_init + INT(FLOOR( (time_utc_init + time_since_reference_point) &
	989	/ 86400.0_wp ), KIND=iwp)
[1496]	990	time_utc = MOD((time_utc_init + time_since_reference_point), 86400.0_wp)
	991
	992
	993	!
	994	!-- Calculate solar declination and hour angle
[1585]	995	declination = ASIN( decl_1 * SIN(decl_2 * REAL(day, KIND=wp) - decl_3) )
[1496]	996	hour_angle = 2.0_wp * pi * (time_utc / 86400.0_wp) + lon - pi
	997
	998	!
	999	!-- Calculate zenith angle
[1585]	1000	zenith(0) = SIN(lat) * SIN(declination) + COS(lat) * COS(declination) &
[1496]	1001	* COS(hour_angle)
[1585]	1002	zenith(0) = MAX(0.0_wp,zenith(0))
[1496]	1003
	1004	!
[1585]	1005	!-- Check if the sun is up (otheriwse shortwave calculations can be skipped)
[1691]	1006	IF ( zenith(0) > 0.0_wp ) THEN
[1585]	1007	sun_up = .TRUE.
	1008	ELSE
	1009	sun_up = .FALSE.
	1010	END IF
[1496]	1011
[1585]	1012	END SUBROUTINE calc_zenith
	1013
[1606]	1014	#if defined ( __rrtmg ) && defined ( __netcdf )
[1585]	1015	!------------------------------------------------------------------------------!
	1016	! Description:
	1017	! ------------
[1682]	1018	!> Calculates surface albedo components based on Briegleb (1992) and
	1019	!> Briegleb et al. (1986)
[1585]	1020	!------------------------------------------------------------------------------!
	1021	SUBROUTINE calc_albedo
	1022
	1023	IMPLICIT NONE
	1024
	1025	IF ( sun_up ) THEN
[1496]	1026	!
[1585]	1027	!-- Ocean
	1028	IF ( albedo_type == 1 ) THEN
	1029	rrtm_aldir(0,:,:) = 0.026_wp / ( zenith(0)**1.7_wp + 0.065_wp ) &
	1030	+ 0.15_wp * ( zenith(0) - 0.1_wp ) &
	1031	* ( zenith(0) - 0.5_wp ) &
	1032	* ( zenith(0) - 1.0_wp )
	1033	rrtm_asdir(0,:,:) = rrtm_aldir(0,:,:)
	1034	!
	1035	!-- Snow
	1036	ELSEIF ( albedo_type == 16 ) THEN
	1037	IF ( zenith(0) < 0.5_wp ) THEN
	1038	rrtm_aldir(0,:,:) = 0.5_wp * (1.0_wp - aldif) &
	1039	* ( 3.0_wp / (1.0_wp + 4.0_wp &
	1040	* zenith(0))) - 1.0_wp
	1041	rrtm_asdir(0,:,:) = 0.5_wp * (1.0_wp - asdif) &
	1042	* ( 3.0_wp / (1.0_wp + 4.0_wp &
	1043	* zenith(0))) - 1.0_wp
[1496]	1044
[1585]	1045	rrtm_aldir(0,:,:) = MIN(0.98_wp, rrtm_aldir(0,:,:))
	1046	rrtm_asdir(0,:,:) = MIN(0.98_wp, rrtm_asdir(0,:,:))
	1047	ELSE
	1048	rrtm_aldir(0,:,:) = aldif
	1049	rrtm_asdir(0,:,:) = asdif
	1050	ENDIF
[1496]	1051	!
[1585]	1052	!-- Sea ice
	1053	ELSEIF ( albedo_type == 15 ) THEN
	1054	rrtm_aldir(0,:,:) = aldif
	1055	rrtm_asdir(0,:,:) = asdif
	1056	!
	1057	!-- Land surfaces
	1058	ELSE
	1059	SELECT CASE ( albedo_type )
[1496]	1060
[1585]	1061	!
	1062	!-- Surface types with strong zenith dependence
	1063	CASE ( 1, 2, 3, 4, 11, 12, 13 )
	1064	rrtm_aldir(0,:,:) = aldif * 1.4_wp / &
	1065	(1.0_wp + 0.8_wp * zenith(0))
	1066	rrtm_asdir(0,:,:) = asdif * 1.4_wp / &
	1067	(1.0_wp + 0.8_wp * zenith(0))
	1068	!
	1069	!-- Surface types with weak zenith dependence
	1070	CASE ( 5, 6, 7, 8, 9, 10, 14 )
	1071	rrtm_aldir(0,:,:) = aldif * 1.1_wp / &
	1072	(1.0_wp + 0.2_wp * zenith(0))
	1073	rrtm_asdir(0,:,:) = asdif * 1.1_wp / &
	1074	(1.0_wp + 0.2_wp * zenith(0))
[1496]	1075
[1585]	1076	CASE DEFAULT
	1077
	1078	END SELECT
	1079	ENDIF
	1080	!
	1081	!-- Diffusive albedo is taken from Table 2
	1082	rrtm_aldif(0,:,:) = aldif
	1083	rrtm_asdif(0,:,:) = asdif
	1084
	1085	ELSE
	1086
	1087	rrtm_aldir(0,:,:) = 0.0_wp
	1088	rrtm_asdir(0,:,:) = 0.0_wp
	1089	rrtm_aldif(0,:,:) = 0.0_wp
	1090	rrtm_asdif(0,:,:) = 0.0_wp
	1091	ENDIF
	1092	END SUBROUTINE calc_albedo
	1093
	1094	!------------------------------------------------------------------------------!
	1095	! Description:
	1096	! ------------
[1682]	1097	!> Read sounding data (pressure and temperature) from RADIATION_DATA.
[1585]	1098	!------------------------------------------------------------------------------!
	1099	SUBROUTINE read_sounding_data
	1100
	1101	USE netcdf_control
	1102
	1103	IMPLICIT NONE
	1104
[1691]	1105	INTEGER(iwp) :: id, & !< NetCDF id of input file
	1106	id_dim_zrad, & !< pressure level id in the NetCDF file
	1107	id_var, & !< NetCDF variable id
	1108	k, & !< loop index
	1109	nz_snd, & !< number of vertical levels in the sounding data
	1110	nz_snd_start, & !< start vertical index for sounding data to be used
	1111	nz_snd_end !< end vertical index for souding data to be used
[1585]	1112
[1691]	1113	REAL(wp) :: t_surface !< actual surface temperature
[1585]	1114
[1691]	1115	REAL(wp), DIMENSION(:), ALLOCATABLE :: hyp_snd_tmp, & !< temporary hydrostatic pressure profile (sounding)
	1116	t_snd_tmp !< temporary temperature profile (sounding)
[1585]	1117
	1118	!
	1119	!-- In case of updates, deallocate arrays first (sufficient to check one
	1120	!-- array as the others are automatically allocated). This is required
	1121	!-- because nzt_rad might change during the update
	1122	IF ( ALLOCATED ( hyp_snd ) ) THEN
	1123	DEALLOCATE( hyp_snd )
	1124	DEALLOCATE( t_snd )
	1125	DEALLOCATE( q_snd )
	1126	DEALLOCATE ( rrtm_play )
	1127	DEALLOCATE ( rrtm_plev )
	1128	DEALLOCATE ( rrtm_tlay )
	1129	DEALLOCATE ( rrtm_tlev )
[1691]	1130
[1585]	1131	DEALLOCATE ( rrtm_h2ovmr )
	1132	DEALLOCATE ( rrtm_cicewp )
	1133	DEALLOCATE ( rrtm_cldfr )
	1134	DEALLOCATE ( rrtm_cliqwp )
	1135	DEALLOCATE ( rrtm_reice )
	1136	DEALLOCATE ( rrtm_reliq )
	1137	DEALLOCATE ( rrtm_lw_taucld )
	1138	DEALLOCATE ( rrtm_lw_tauaer )
[1691]	1139
[1585]	1140	DEALLOCATE ( rrtm_lwdflx )
[1691]	1141	DEALLOCATE ( rrtm_lwdflxc )
[1585]	1142	DEALLOCATE ( rrtm_lwuflx )
[1691]	1143	DEALLOCATE ( rrtm_lwuflxc )
	1144	DEALLOCATE ( rrtm_lwuflx_dt )
	1145	DEALLOCATE ( rrtm_lwuflxc_dt )
[1585]	1146	DEALLOCATE ( rrtm_lwhr )
	1147	DEALLOCATE ( rrtm_lwhrc )
[1691]	1148
[1585]	1149	DEALLOCATE ( rrtm_sw_taucld )
	1150	DEALLOCATE ( rrtm_sw_ssacld )
	1151	DEALLOCATE ( rrtm_sw_asmcld )
	1152	DEALLOCATE ( rrtm_sw_fsfcld )
	1153	DEALLOCATE ( rrtm_sw_tauaer )
	1154	DEALLOCATE ( rrtm_sw_ssaaer )
	1155	DEALLOCATE ( rrtm_sw_asmaer )
[1691]	1156	DEALLOCATE ( rrtm_sw_ecaer )
	1157
[1585]	1158	DEALLOCATE ( rrtm_swdflx )
[1691]	1159	DEALLOCATE ( rrtm_swdflxc )
[1585]	1160	DEALLOCATE ( rrtm_swuflx )
[1691]	1161	DEALLOCATE ( rrtm_swuflxc )
[1585]	1162	DEALLOCATE ( rrtm_swhr )
	1163	DEALLOCATE ( rrtm_swhrc )
[1691]	1164
[1585]	1165	ENDIF
	1166
	1167	!
	1168	!-- Open file for reading
	1169	nc_stat = NF90_OPEN( rrtm_input_file, NF90_NOWRITE, id )
	1170	CALL handle_netcdf_error( 'netcdf', 549 )
	1171
	1172	!
	1173	!-- Inquire dimension of z axis and save in nz_snd
	1174	nc_stat = NF90_INQ_DIMID( id, "Pressure", id_dim_zrad )
	1175	nc_stat = NF90_INQUIRE_DIMENSION( id, id_dim_zrad, len = nz_snd )
	1176	CALL handle_netcdf_error( 'netcdf', 551 )
	1177
	1178	!
	1179	! !-- Allocate temporary array for storing pressure data
[1701]	1180	ALLOCATE( hyp_snd_tmp(1:nz_snd) )
[1585]	1181	hyp_snd_tmp = 0.0_wp
	1182
	1183
	1184	!-- Read pressure from file
	1185	nc_stat = NF90_INQ_VARID( id, "Pressure", id_var )
[1691]	1186	nc_stat = NF90_GET_VAR( id, id_var, hyp_snd_tmp(:), start = (/1/), &
[1585]	1187	count = (/nz_snd/) )
	1188	CALL handle_netcdf_error( 'netcdf', 552 )
	1189
	1190	!
	1191	!-- Allocate temporary array for storing temperature data
[1701]	1192	ALLOCATE( t_snd_tmp(1:nz_snd) )
[1585]	1193	t_snd_tmp = 0.0_wp
	1194
	1195	!
	1196	!-- Read temperature from file
	1197	nc_stat = NF90_INQ_VARID( id, "ReferenceTemperature", id_var )
[1691]	1198	nc_stat = NF90_GET_VAR( id, id_var, t_snd_tmp(:), start = (/1/), &
[1585]	1199	count = (/nz_snd/) )
	1200	CALL handle_netcdf_error( 'netcdf', 553 )
	1201
	1202	!
	1203	!-- Calculate start of sounding data
	1204	nz_snd_start = nz_snd + 1
[1701]	1205	nz_snd_end = nz_snd + 1
[1585]	1206
	1207	!
	1208	!-- Start filling vertical dimension at 10hPa above the model domain (hyp is
	1209	!-- in Pa, hyp_snd in hPa).
	1210	DO k = 1, nz_snd
[1691]	1211	IF ( hyp_snd_tmp(k) < ( hyp(nzt+1) - 1000.0_wp) * 0.01_wp ) THEN
[1585]	1212	nz_snd_start = k
	1213	EXIT
	1214	END IF
	1215	END DO
	1216
[1691]	1217	IF ( nz_snd_start <= nz_snd ) THEN
[1701]	1218	nz_snd_end = nz_snd
[1585]	1219	END IF
	1220
	1221
	1222	!
	1223	!-- Calculate of total grid points for RRTMG calculations
[1701]	1224	nzt_rad = nzt + nz_snd_end - nz_snd_start + 1
[1585]	1225
	1226	!
	1227	!-- Save data above LES domain in hyp_snd, t_snd and q_snd
	1228	!-- Note: q_snd_tmp is not calculated at the moment (dry residual atmosphere)
	1229	ALLOCATE( hyp_snd(nzb+1:nzt_rad) )
	1230	ALLOCATE( t_snd(nzb+1:nzt_rad) )
	1231	ALLOCATE( q_snd(nzb+1:nzt_rad) )
	1232	hyp_snd = 0.0_wp
	1233	t_snd = 0.0_wp
	1234	q_snd = 0.0_wp
	1235
[1757]	1236	hyp_snd(nzt+2:nzt_rad) = hyp_snd_tmp(nz_snd_start+1:nz_snd_end)
	1237	t_snd(nzt+2:nzt_rad) = t_snd_tmp(nz_snd_start+1:nz_snd_end)
[1585]	1238
	1239	nc_stat = NF90_CLOSE( id )
	1240
	1241	!
	1242	!-- Calculate pressure levels on zu and zw grid. Sounding data is added at
	1243	!-- top of the LES domain. This routine does not consider horizontal or
	1244	!-- vertical variability of pressure and temperature
	1245	ALLOCATE ( rrtm_play(0:0,nzb+1:nzt_rad+1) )
	1246	ALLOCATE ( rrtm_plev(0:0,nzb+1:nzt_rad+2) )
	1247
[1691]	1248	t_surface = pt_surface * ( surface_pressure / 1000.0_wp )**0.286_wp
[1585]	1249	DO k = nzb+1, nzt+1
	1250	rrtm_play(0,k) = hyp(k) * 0.01_wp
	1251	rrtm_plev(0,k) = surface_pressure * ( (t_surface - g/cp * zw(k-1)) / &
	1252	t_surface )**(1.0_wp/0.286_wp)
	1253	ENDDO
	1254
	1255	DO k = nzt+2, nzt_rad
	1256	rrtm_play(0,k) = hyp_snd(k)
	1257	rrtm_plev(0,k) = 0.5_wp * ( rrtm_play(0,k) + rrtm_play(0,k-1) )
	1258	ENDDO
	1259	rrtm_plev(0,nzt_rad+1) = MAX( 0.5 * hyp_snd(nzt_rad), &
	1260	1.5 * hyp_snd(nzt_rad) &
	1261	- 0.5 * hyp_snd(nzt_rad-1) )
	1262	rrtm_plev(0,nzt_rad+2) = MIN( 1.0E-4_wp, &
	1263	0.25_wp * rrtm_plev(0,nzt_rad+1) )
	1264
	1265	rrtm_play(0,nzt_rad+1) = 0.5 * rrtm_plev(0,nzt_rad+1)
	1266
	1267	!
	1268	!-- Calculate temperature/humidity levels at top of the LES domain.
	1269	!-- Currently, the temperature is taken from sounding data (might lead to a
	1270	!-- temperature jump at interface. To do: Humidity is currently not
	1271	!-- calculated above the LES domain.
	1272	ALLOCATE ( rrtm_tlay(0:0,nzb+1:nzt_rad+1) )
	1273	ALLOCATE ( rrtm_tlev(0:0,nzb+1:nzt_rad+2) )
	1274	ALLOCATE ( rrtm_h2ovmr(0:0,nzb+1:nzt_rad+1) )
	1275
	1276	DO k = nzt+8, nzt_rad
	1277	rrtm_tlay(0,k) = t_snd(k)
	1278	rrtm_h2ovmr(0,k) = q_snd(k)
	1279	ENDDO
[1691]	1280	rrtm_tlay(0,nzt_rad+1) = 2.0_wp * rrtm_tlay(0,nzt_rad) &
	1281	- rrtm_tlay(0,nzt_rad-1)
[1585]	1282	DO k = nzt+9, nzt_rad+1
	1283	rrtm_tlev(0,k) = rrtm_tlay(0,k-1) + (rrtm_tlay(0,k) &
	1284	- rrtm_tlay(0,k-1)) &
	1285	/ ( rrtm_play(0,k) - rrtm_play(0,k-1) ) &
	1286	* ( rrtm_plev(0,k) - rrtm_play(0,k-1) )
	1287	ENDDO
	1288	rrtm_h2ovmr(0,nzt_rad+1) = rrtm_h2ovmr(0,nzt_rad)
	1289
	1290	rrtm_tlev(0,nzt_rad+2) = 2.0_wp * rrtm_tlay(0,nzt_rad+1) &
	1291	- rrtm_tlev(0,nzt_rad)
	1292	!
	1293	!-- Allocate remaining RRTMG arrays
	1294	ALLOCATE ( rrtm_cicewp(0:0,nzb+1:nzt_rad+1) )
	1295	ALLOCATE ( rrtm_cldfr(0:0,nzb+1:nzt_rad+1) )
	1296	ALLOCATE ( rrtm_cliqwp(0:0,nzb+1:nzt_rad+1) )
	1297	ALLOCATE ( rrtm_reice(0:0,nzb+1:nzt_rad+1) )
	1298	ALLOCATE ( rrtm_reliq(0:0,nzb+1:nzt_rad+1) )
	1299	ALLOCATE ( rrtm_lw_taucld(1:nbndlw+1,0:0,nzb+1:nzt_rad+1) )
	1300	ALLOCATE ( rrtm_lw_tauaer(0:0,nzb+1:nzt_rad+1,1:nbndlw+1) )
	1301	ALLOCATE ( rrtm_sw_taucld(1:nbndsw+1,0:0,nzb+1:nzt_rad+1) )
	1302	ALLOCATE ( rrtm_sw_ssacld(1:nbndsw+1,0:0,nzb+1:nzt_rad+1) )
	1303	ALLOCATE ( rrtm_sw_asmcld(1:nbndsw+1,0:0,nzb+1:nzt_rad+1) )
	1304	ALLOCATE ( rrtm_sw_fsfcld(1:nbndsw+1,0:0,nzb+1:nzt_rad+1) )
	1305	ALLOCATE ( rrtm_sw_tauaer(0:0,nzb+1:nzt_rad+1,1:nbndsw+1) )
	1306	ALLOCATE ( rrtm_sw_ssaaer(0:0,nzb+1:nzt_rad+1,1:nbndsw+1) )
	1307	ALLOCATE ( rrtm_sw_asmaer(0:0,nzb+1:nzt_rad+1,1:nbndsw+1) )
	1308	ALLOCATE ( rrtm_sw_ecaer(0:0,nzb+1:nzt_rad+1,1:naerec+1) )
	1309
	1310	!
	1311	!-- The ice phase is currently not considered in PALM
	1312	rrtm_cicewp = 0.0_wp
	1313	rrtm_reice = 0.0_wp
	1314
	1315	!
	1316	!-- Set other parameters (move to NAMELIST parameters in the future)
	1317	rrtm_lw_tauaer = 0.0_wp
	1318	rrtm_lw_taucld = 0.0_wp
	1319	rrtm_sw_taucld = 0.0_wp
	1320	rrtm_sw_ssacld = 0.0_wp
	1321	rrtm_sw_asmcld = 0.0_wp
	1322	rrtm_sw_fsfcld = 0.0_wp
	1323	rrtm_sw_tauaer = 0.0_wp
	1324	rrtm_sw_ssaaer = 0.0_wp
	1325	rrtm_sw_asmaer = 0.0_wp
	1326	rrtm_sw_ecaer = 0.0_wp
	1327
	1328
	1329	ALLOCATE ( rrtm_swdflx(0:0,nzb:nzt_rad+1) )
	1330	ALLOCATE ( rrtm_swuflx(0:0,nzb:nzt_rad+1) )
	1331	ALLOCATE ( rrtm_swhr(0:0,nzb+1:nzt_rad+1) )
	1332	ALLOCATE ( rrtm_swuflxc(0:0,nzb:nzt_rad+1) )
	1333	ALLOCATE ( rrtm_swdflxc(0:0,nzb:nzt_rad+1) )
	1334	ALLOCATE ( rrtm_swhrc(0:0,nzb+1:nzt_rad+1) )
	1335
	1336	rrtm_swdflx = 0.0_wp
	1337	rrtm_swuflx = 0.0_wp
	1338	rrtm_swhr = 0.0_wp
	1339	rrtm_swuflxc = 0.0_wp
	1340	rrtm_swdflxc = 0.0_wp
	1341	rrtm_swhrc = 0.0_wp
	1342
	1343	ALLOCATE ( rrtm_lwdflx(0:0,nzb:nzt_rad+1) )
	1344	ALLOCATE ( rrtm_lwuflx(0:0,nzb:nzt_rad+1) )
	1345	ALLOCATE ( rrtm_lwhr(0:0,nzb+1:nzt_rad+1) )
	1346	ALLOCATE ( rrtm_lwuflxc(0:0,nzb:nzt_rad+1) )
	1347	ALLOCATE ( rrtm_lwdflxc(0:0,nzb:nzt_rad+1) )
	1348	ALLOCATE ( rrtm_lwhrc(0:0,nzb+1:nzt_rad+1) )
	1349
	1350	rrtm_lwdflx = 0.0_wp
	1351	rrtm_lwuflx = 0.0_wp
	1352	rrtm_lwhr = 0.0_wp
	1353	rrtm_lwuflxc = 0.0_wp
	1354	rrtm_lwdflxc = 0.0_wp
	1355	rrtm_lwhrc = 0.0_wp
	1356
[1691]	1357	ALLOCATE ( rrtm_lwuflx_dt(0:0,nzb:nzt_rad+1) )
	1358	ALLOCATE ( rrtm_lwuflxc_dt(0:0,nzb:nzt_rad+1) )
[1585]	1359
[1709]	1360	rrtm_lwuflx_dt = 0.0_wp
[1691]	1361	rrtm_lwuflxc_dt = 0.0_wp
	1362
[1585]	1363	END SUBROUTINE read_sounding_data
	1364
	1365
	1366	!------------------------------------------------------------------------------!
	1367	! Description:
	1368	! ------------
[1682]	1369	!> Read trace gas data from file
[1585]	1370	!------------------------------------------------------------------------------!
	1371	SUBROUTINE read_trace_gas_data
	1372
	1373	USE netcdf_control
	1374	USE rrsw_ncpar
	1375
	1376	IMPLICIT NONE
	1377
[1691]	1378	INTEGER(iwp), PARAMETER :: num_trace_gases = 9 !< number of trace gases (absorbers)
[1585]	1379
[1691]	1380	CHARACTER(LEN=5), DIMENSION(num_trace_gases), PARAMETER :: & !< trace gas names
[1585]	1381	trace_names = (/'O3 ', 'CO2 ', 'CH4 ', 'N2O ', 'O2 ', &
	1382	'CFC11', 'CFC12', 'CFC22', 'CCL4 '/)
	1383
[1691]	1384	INTEGER(iwp) :: id, & !< NetCDF id
	1385	k, & !< loop index
	1386	m, & !< loop index
	1387	n, & !< loop index
	1388	nabs, & !< number of absorbers
	1389	np, & !< number of pressure levels
	1390	id_abs, & !< NetCDF id of the respective absorber
	1391	id_dim, & !< NetCDF id of asborber's dimension
	1392	id_var !< NetCDf id ot the absorber
[1585]	1393
	1394	REAL(wp) :: p_mls_l, p_mls_u, p_wgt_l, p_wgt_u, p_mls_m
	1395
	1396
[1682]	1397	REAL(wp), DIMENSION(:), ALLOCATABLE :: p_mls, & !< pressure levels for the absorbers
	1398	rrtm_play_tmp, & !< temporary array for pressure zu-levels
	1399	rrtm_plev_tmp, & !< temporary array for pressure zw-levels
	1400	trace_path_tmp !< temporary array for storing trace gas path data
[1585]	1401
[1682]	1402	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: trace_mls, & !< array for storing the absorber amounts
	1403	trace_mls_path, & !< array for storing trace gas path data
	1404	trace_mls_tmp !< temporary array for storing trace gas data
[1585]	1405
	1406
	1407	!
	1408	!-- In case of updates, deallocate arrays first (sufficient to check one
	1409	!-- array as the others are automatically allocated)
	1410	IF ( ALLOCATED ( rrtm_o3vmr ) ) THEN
	1411	DEALLOCATE ( rrtm_o3vmr )
	1412	DEALLOCATE ( rrtm_co2vmr )
	1413	DEALLOCATE ( rrtm_ch4vmr )
	1414	DEALLOCATE ( rrtm_n2ovmr )
	1415	DEALLOCATE ( rrtm_o2vmr )
	1416	DEALLOCATE ( rrtm_cfc11vmr )
	1417	DEALLOCATE ( rrtm_cfc12vmr )
	1418	DEALLOCATE ( rrtm_cfc22vmr )
	1419	DEALLOCATE ( rrtm_ccl4vmr )
	1420	ENDIF
	1421
	1422	!
	1423	!-- Allocate trace gas profiles
	1424	ALLOCATE ( rrtm_o3vmr(0:0,1:nzt_rad+1) )
	1425	ALLOCATE ( rrtm_co2vmr(0:0,1:nzt_rad+1) )
	1426	ALLOCATE ( rrtm_ch4vmr(0:0,1:nzt_rad+1) )
	1427	ALLOCATE ( rrtm_n2ovmr(0:0,1:nzt_rad+1) )
	1428	ALLOCATE ( rrtm_o2vmr(0:0,1:nzt_rad+1) )
	1429	ALLOCATE ( rrtm_cfc11vmr(0:0,1:nzt_rad+1) )
	1430	ALLOCATE ( rrtm_cfc12vmr(0:0,1:nzt_rad+1) )
	1431	ALLOCATE ( rrtm_cfc22vmr(0:0,1:nzt_rad+1) )
	1432	ALLOCATE ( rrtm_ccl4vmr(0:0,1:nzt_rad+1) )
	1433
	1434	!
	1435	!-- Open file for reading
	1436	nc_stat = NF90_OPEN( rrtm_input_file, NF90_NOWRITE, id )
	1437	CALL handle_netcdf_error( 'netcdf', 549 )
	1438	!
	1439	!-- Inquire dimension ids and dimensions
	1440	nc_stat = NF90_INQ_DIMID( id, "Pressure", id_dim )
	1441	CALL handle_netcdf_error( 'netcdf', 550 )
	1442	nc_stat = NF90_INQUIRE_DIMENSION( id, id_dim, len = np)
	1443	CALL handle_netcdf_error( 'netcdf', 550 )
	1444
	1445	nc_stat = NF90_INQ_DIMID( id, "Absorber", id_dim )
	1446	CALL handle_netcdf_error( 'netcdf', 550 )
	1447	nc_stat = NF90_INQUIRE_DIMENSION( id, id_dim, len = nabs )
	1448	CALL handle_netcdf_error( 'netcdf', 550 )
	1449
	1450
	1451	!
	1452	!-- Allocate pressure, and trace gas arrays
	1453	ALLOCATE( p_mls(1:np) )
	1454	ALLOCATE( trace_mls(1:num_trace_gases,1:np) )
	1455	ALLOCATE( trace_mls_tmp(1:nabs,1:np) )
	1456
	1457
	1458	nc_stat = NF90_INQ_VARID( id, "Pressure", id_var )
	1459	CALL handle_netcdf_error( 'netcdf', 550 )
	1460	nc_stat = NF90_GET_VAR( id, id_var, p_mls )
	1461	CALL handle_netcdf_error( 'netcdf', 550 )
	1462
	1463	nc_stat = NF90_INQ_VARID( id, "AbsorberAmountMLS", id_var )
	1464	CALL handle_netcdf_error( 'netcdf', 550 )
	1465	nc_stat = NF90_GET_VAR( id, id_var, trace_mls_tmp )
	1466	CALL handle_netcdf_error( 'netcdf', 550 )
	1467
	1468
	1469	!
	1470	!-- Write absorber amounts (mls) to trace_mls
	1471	DO n = 1, num_trace_gases
	1472	CALL getAbsorberIndex( TRIM( trace_names(n) ), id_abs )
	1473
	1474	trace_mls(n,1:np) = trace_mls_tmp(id_abs,1:np)
	1475
	1476	!
	1477	!-- Replace missing values by zero
	1478	WHERE ( trace_mls(n,:) > 2.0_wp )
	1479	trace_mls(n,:) = 0.0_wp
	1480	END WHERE
	1481	END DO
	1482
	1483	DEALLOCATE ( trace_mls_tmp )
	1484
	1485	nc_stat = NF90_CLOSE( id )
	1486	CALL handle_netcdf_error( 'netcdf', 551 )
	1487
	1488	!
	1489	!-- Add extra pressure level for calculations of the trace gas paths
	1490	ALLOCATE ( rrtm_play_tmp(1:nzt_rad+1) )
	1491	ALLOCATE ( rrtm_plev_tmp(1:nzt_rad+2) )
	1492
	1493	rrtm_play_tmp(1:nzt_rad) = rrtm_play(0,1:nzt_rad)
	1494	rrtm_plev_tmp(1:nzt_rad+1) = rrtm_plev(0,1:nzt_rad+1)
	1495	rrtm_play_tmp(nzt_rad+1) = rrtm_plev(0,nzt_rad+1) * 0.5_wp
	1496	rrtm_plev_tmp(nzt_rad+2) = MIN( 1.0E-4_wp, 0.25_wp &
	1497	* rrtm_plev(0,nzt_rad+1) )
	1498
	1499	!
	1500	!-- Calculate trace gas path (zero at surface) with interpolation to the
	1501	!-- sounding levels
	1502	ALLOCATE ( trace_mls_path(1:nzt_rad+2,1:num_trace_gases) )
	1503
	1504	trace_mls_path(nzb+1,:) = 0.0_wp
	1505
	1506	DO k = nzb+2, nzt_rad+2
	1507	DO m = 1, num_trace_gases
	1508	trace_mls_path(k,m) = trace_mls_path(k-1,m)
	1509
	1510	!
	1511	!-- When the pressure level is higher than the trace gas pressure
	1512	!-- level, assume that
[1691]	1513	IF ( rrtm_plev_tmp(k-1) > p_mls(1) ) THEN
[1585]	1514
	1515	trace_mls_path(k,m) = trace_mls_path(k,m) + trace_mls(m,1) &
	1516	* ( rrtm_plev_tmp(k-1) &
	1517	- MAX( p_mls(1), rrtm_plev_tmp(k) ) &
	1518	) / g
	1519	ENDIF
	1520
	1521	!
	1522	!-- Integrate for each sounding level from the contributing p_mls
	1523	!-- levels
	1524	DO n = 2, np
	1525	!
	1526	!-- Limit p_mls so that it is within the model level
	1527	p_mls_u = MIN( rrtm_plev_tmp(k-1), &
	1528	MAX( rrtm_plev_tmp(k), p_mls(n) ) )
	1529	p_mls_l = MIN( rrtm_plev_tmp(k-1), &
	1530	MAX( rrtm_plev_tmp(k), p_mls(n-1) ) )
	1531
[1691]	1532	IF ( p_mls_l > p_mls_u ) THEN
[1585]	1533
	1534	!
	1535	!-- Calculate weights for interpolation
	1536	p_mls_m = 0.5_wp * (p_mls_l + p_mls_u)
	1537	p_wgt_u = (p_mls(n-1) - p_mls_m) / (p_mls(n-1) - p_mls(n))
	1538	p_wgt_l = (p_mls_m - p_mls(n)) / (p_mls(n-1) - p_mls(n))
	1539
	1540	!
	1541	!-- Add level to trace gas path
	1542	trace_mls_path(k,m) = trace_mls_path(k,m) &
	1543	+ ( p_wgt_u * trace_mls(m,n) &
	1544	+ p_wgt_l * trace_mls(m,n-1) ) &
[1691]	1545	* (p_mls_l - p_mls_u) / g
[1585]	1546	ENDIF
	1547	ENDDO
	1548
[1691]	1549	IF ( rrtm_plev_tmp(k) < p_mls(np) ) THEN
[1585]	1550	trace_mls_path(k,m) = trace_mls_path(k,m) + trace_mls(m,np) &
	1551	* ( MIN( rrtm_plev_tmp(k-1), p_mls(np) ) &
	1552	- rrtm_plev_tmp(k) &
	1553	) / g
	1554	ENDIF
[1496]	1555	ENDDO
	1556	ENDDO
	1557
	1558
[1585]	1559	!
	1560	!-- Prepare trace gas path profiles
	1561	ALLOCATE ( trace_path_tmp(1:nzt_rad+1) )
[1496]	1562
[1585]	1563	DO m = 1, num_trace_gases
	1564
	1565	trace_path_tmp(1:nzt_rad+1) = ( trace_mls_path(2:nzt_rad+2,m) &
	1566	- trace_mls_path(1:nzt_rad+1,m) ) * g &
	1567	/ ( rrtm_plev_tmp(1:nzt_rad+1) &
	1568	- rrtm_plev_tmp(2:nzt_rad+2) )
	1569
	1570	!
	1571	!-- Save trace gas paths to the respective arrays
	1572	SELECT CASE ( TRIM( trace_names(m) ) )
	1573
	1574	CASE ( 'O3' )
	1575
	1576	rrtm_o3vmr(0,:) = trace_path_tmp(:)
	1577
	1578	CASE ( 'CO2' )
	1579
	1580	rrtm_co2vmr(0,:) = trace_path_tmp(:)
	1581
	1582	CASE ( 'CH4' )
	1583
	1584	rrtm_ch4vmr(0,:) = trace_path_tmp(:)
	1585
	1586	CASE ( 'N2O' )
	1587
	1588	rrtm_n2ovmr(0,:) = trace_path_tmp(:)
	1589
	1590	CASE ( 'O2' )
	1591
	1592	rrtm_o2vmr(0,:) = trace_path_tmp(:)
	1593
	1594	CASE ( 'CFC11' )
	1595
	1596	rrtm_cfc11vmr(0,:) = trace_path_tmp(:)
	1597
	1598	CASE ( 'CFC12' )
	1599
	1600	rrtm_cfc12vmr(0,:) = trace_path_tmp(:)
	1601
	1602	CASE ( 'CFC22' )
	1603
	1604	rrtm_cfc22vmr(0,:) = trace_path_tmp(:)
	1605
	1606	CASE ( 'CCL4' )
	1607
	1608	rrtm_ccl4vmr(0,:) = trace_path_tmp(:)
	1609
	1610	CASE DEFAULT
	1611
	1612	END SELECT
	1613
	1614	ENDDO
	1615
	1616	DEALLOCATE ( trace_path_tmp )
	1617	DEALLOCATE ( trace_mls_path )
	1618	DEALLOCATE ( rrtm_play_tmp )
	1619	DEALLOCATE ( rrtm_plev_tmp )
	1620	DEALLOCATE ( trace_mls )
	1621	DEALLOCATE ( p_mls )
	1622
	1623	END SUBROUTINE read_trace_gas_data
	1624
	1625	#endif
	1626
	1627
[1551]	1628	!------------------------------------------------------------------------------!
	1629	! Description:
	1630	! ------------
[1682]	1631	!> Calculate temperature tendency due to radiative cooling/heating.
	1632	!> Cache-optimized version.
[1551]	1633	!------------------------------------------------------------------------------!
[1585]	1634	SUBROUTINE radiation_tendency_ij ( i, j, tend )
[1496]	1635
[1585]	1636	USE cloud_parameters, &
[1691]	1637	ONLY: pt_d_t
[1551]	1638
[1585]	1639	IMPLICIT NONE
	1640
[1691]	1641	INTEGER(iwp) :: i, j, k !< loop indices
[1585]	1642
[1691]	1643	REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: tend !< pt tendency term
[1585]	1644
	1645	#if defined ( __rrtmg )
	1646	!
[1691]	1647	!-- Calculate tendency based on heating rate
[1585]	1648	DO k = nzb+1, nzt+1
[1691]	1649	tend(k,j,i) = tend(k,j,i) + (rad_lw_hr(k,j,i) + rad_sw_hr(k,j,i)) &
	1650	* pt_d_t(k) * d_seconds_hour
[1585]	1651	ENDDO
	1652
	1653	#endif
	1654
	1655	END SUBROUTINE radiation_tendency_ij
	1656
	1657
[1551]	1658	!------------------------------------------------------------------------------!
	1659	! Description:
	1660	! ------------
[1682]	1661	!> Calculate temperature tendency due to radiative cooling/heating.
	1662	!> Vector-optimized version
[1551]	1663	!------------------------------------------------------------------------------!
[1585]	1664	SUBROUTINE radiation_tendency ( tend )
[1551]	1665
[1585]	1666	USE cloud_parameters, &
[1691]	1667	ONLY: pt_d_t
[1551]	1668
[1585]	1669	USE indices, &
	1670	ONLY: nxl, nxr, nyn, nys
	1671
	1672	IMPLICIT NONE
	1673
[1691]	1674	INTEGER(iwp) :: i, j, k !< loop indices
[1585]	1675
[1691]	1676	REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: tend !< pt tendency term
[1585]	1677
	1678	#if defined ( __rrtmg )
[1691]	1679	!
	1680	!-- Calculate tendency based on heating rate
[1585]	1681	DO i = nxl, nxr
	1682	DO j = nys, nyn
	1683	DO k = nzb+1, nzt+1
[1691]	1684	tend(k,j,i) = tend(k,j,i) + ( rad_lw_hr(k,j,i) &
	1685	+ rad_sw_hr(k,j,i) ) * pt_d_t(k) &
	1686	* d_seconds_hour
[1585]	1687	ENDDO
	1688	ENDDO
	1689	ENDDO
	1690	#endif
	1691
	1692	END SUBROUTINE radiation_tendency
	1693
[1496]	1694	END MODULE radiation_model_mod

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