Home

Context Navigation

source: palm/trunk/SOURCE/radiation_model_mod.f90 @ 1854

Last change on this file since 1854 was 1854, checked in by maronga, 9 years ago
last commit documented
Property svn:keywords set to `Id`
File size: 88.9 KB

Rev	Line
[1826]	1	!> @file radiation_model_mod.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	!
[1818]	16	! Copyright 1997-2016 Leibniz Universitaet Hannover
[1496]	17	!--------------------------------------------------------------------------------!
	18	!
	19	! Current revisions:
	20	! -----------------
[1854]	21	!
	22	!
[1496]	23	! Former revisions:
	24	! -----------------
	25	! $Id: radiation_model_mod.f90 1854 2016-04-11 09:03:15Z maronga $
	26	!
[1854]	27	! 1853 2016-04-11 09:00:35Z maronga
	28	! Added routine for radiation_scheme = constant.
	29	!
[1852]	30	! 1849 2016-04-08 11:33:18Z hoffmann
[1851]	31	! Adapted for modularization of microphysics
[1852]	32	!
[1827]	33	! 1826 2016-04-07 12:01:39Z maronga
	34	! Further modularization.
	35	!
[1789]	36	! 1788 2016-03-10 11:01:04Z maronga
	37	! Added new albedo class for pavements / roads.
	38	!
[1784]	39	! 1783 2016-03-06 18:36:17Z raasch
	40	! palm-netcdf-module removed in order to avoid a circular module dependency,
	41	! netcdf-variables moved to netcdf-module, new routine netcdf_handle_error_rad
	42	! added
	43	!
[1758]	44	! 1757 2016-02-22 15:49:32Z maronga
	45	! Added parameter unscheduled_radiation_calls. Bugfix: interpolation of sounding
	46	! profiles for pressure and temperature above the LES domain.
	47	!
[1710]	48	! 1709 2015-11-04 14:47:01Z maronga
	49	! Bugfix: set initial value for rrtm_lwuflx_dt to zero, small formatting
	50	! corrections
	51	!
[1702]	52	! 1701 2015-11-02 07:43:04Z maronga
	53	! Bugfixes: wrong index for output of timeseries, setting of nz_snd_end
	54	!
[1692]	55	! 1691 2015-10-26 16:17:44Z maronga
	56	! Added option for spin-up runs without radiation (skip_time_do_radiation). Bugfix
	57	! in calculation of pressure profiles. Bugfix in calculation of trace gas profiles.
	58	! Added output of radiative heating rates.
	59	!
[1683]	60	! 1682 2015-10-07 23:56:08Z knoop
	61	! Code annotations made doxygen readable
	62	!
[1607]	63	! 1606 2015-06-29 10:43:37Z maronga
	64	! Added preprocessor directive __netcdf to allow for compiling without netCDF.
	65	! Note, however, that RRTMG cannot be used without netCDF.
	66	!
[1591]	67	! 1590 2015-05-08 13:56:27Z maronga
	68	! Bugfix: definition of character strings requires same length for all elements
	69	!
[1588]	70	! 1587 2015-05-04 14:19:01Z maronga
	71	! Added albedo class for snow
	72	!
[1586]	73	! 1585 2015-04-30 07:05:52Z maronga
	74	! Added support for RRTMG
	75	!
[1572]	76	! 1571 2015-03-12 16:12:49Z maronga
	77	! Added missing KIND attribute. Removed upper-case variable names
	78	!
[1552]	79	! 1551 2015-03-03 14:18:16Z maronga
	80	! Added support for data output. Various variables have been renamed. Added
	81	! interface for different radiation schemes (currently: clear-sky, constant, and
	82	! RRTM (not yet implemented).
	83	!
[1497]	84	! 1496 2014-12-02 17:25:50Z maronga
	85	! Initial revision
	86	!
[1496]	87	!
	88	! Description:
	89	! ------------
[1682]	90	!> Radiation models and interfaces
[1826]	91	!> @todo move variable definitions used in radiation_init only to the subroutine
[1682]	92	!> as they are no longer required after initialization.
	93	!> @todo Output of full column vertical profiles used in RRTMG
	94	!> @todo Output of other rrtm arrays (such as volume mixing ratios)
	95	!> @todo Adapt for use with topography
	96	!>
	97	!> @note Many variables have a leading dummy dimension (0:0) in order to
	98	!> match the assume-size shape expected by the RRTMG model.
[1496]	99	!------------------------------------------------------------------------------!
[1682]	100	MODULE radiation_model_mod
	101
[1496]	102	USE arrays_3d, &
[1691]	103	ONLY: dzw, hyp, pt, q, ql, zw
[1496]	104
[1585]	105	USE cloud_parameters, &
[1849]	106	ONLY: cp, l_d_cp, rho_l
[1585]	107
	108	USE constants, &
	109	ONLY: pi
	110
[1496]	111	USE control_parameters, &
[1585]	112	ONLY: cloud_droplets, cloud_physics, g, initializing_actions, &
[1691]	113	large_scale_forcing, lsf_surf, phi, pt_surface, rho_surface, &
[1585]	114	surface_pressure, time_since_reference_point
[1496]	115
	116	USE indices, &
[1585]	117	ONLY: nxl, nxlg, nxr, nxrg, nyn, nyng, nys, nysg, nzb_s_inner, nzb, nzt
[1496]	118
	119	USE kinds
	120
[1849]	121	USE microphysics_mod, &
	122	ONLY: nc_const, sigma_gc
	123
[1606]	124	#if defined ( __netcdf )
[1783]	125	USE NETCDF
[1606]	126	#endif
[1585]	127
	128	#if defined ( __rrtmg )
[1788]	129
[1585]	130	USE parrrsw, &
	131	ONLY: naerec, nbndsw
[1551]	132
[1585]	133	USE parrrtm, &
	134	ONLY: nbndlw
	135
	136	USE rrtmg_lw_init, &
	137	ONLY: rrtmg_lw_ini
	138
	139	USE rrtmg_sw_init, &
	140	ONLY: rrtmg_sw_ini
	141
	142	USE rrtmg_lw_rad, &
	143	ONLY: rrtmg_lw
	144
	145	USE rrtmg_sw_rad, &
	146	ONLY: rrtmg_sw
	147	#endif
	148
	149
	150
[1496]	151	IMPLICIT NONE
	152
[1585]	153	CHARACTER(10) :: radiation_scheme = 'clear-sky' ! 'constant', 'clear-sky', or 'rrtmg'
[1551]	154
[1585]	155	!
	156	!-- Predefined Land surface classes (albedo_type) after Briegleb (1992)
[1788]	157	CHARACTER(37), DIMENSION(0:17), PARAMETER :: albedo_type_name = (/ &
[1590]	158	'user defined ', & ! 0
	159	'ocean ', & ! 1
	160	'mixed farming, tall grassland ', & ! 2
	161	'tall/medium grassland ', & ! 3
	162	'evergreen shrubland ', & ! 4
	163	'short grassland/meadow/shrubland ', & ! 5
	164	'evergreen needleleaf forest ', & ! 6
	165	'mixed deciduous evergreen forest ', & ! 7
	166	'deciduous forest ', & ! 8
	167	'tropical evergreen broadleaved forest', & ! 9
	168	'medium/tall grassland/woodland ', & ! 10
	169	'desert, sandy ', & ! 11
	170	'desert, rocky ', & ! 12
	171	'tundra ', & ! 13
	172	'land ice ', & ! 14
	173	'sea ice ', & ! 15
[1788]	174	'snow ', & ! 16
	175	'pavement/roads ' & ! 17
[1585]	176	/)
[1496]	177
[1682]	178	INTEGER(iwp) :: albedo_type = 5, & !< Albedo surface type (default: short grassland)
	179	day, & !< current day of the year
	180	day_init = 172, & !< day of the year at model start (21/06)
	181	dots_rad = 0 !< starting index for timeseries output
[1496]	182
[1757]	183	LOGICAL :: unscheduled_radiation_calls = .TRUE., & !< flag parameter indicating whether additional calls of the radiation code are allowed
	184	constant_albedo = .FALSE., & !< flag parameter indicating whether the albedo may change depending on zenith
	185	force_radiation_call = .FALSE., & !< flag parameter for unscheduled radiation calls
	186	lw_radiation = .TRUE., & !< flag parameter indicating whether longwave radiation shall be calculated
	187	radiation = .FALSE., & !< flag parameter indicating whether the radiation model is used
	188	sun_up = .TRUE., & !< flag parameter indicating whether the sun is up or down
	189	sw_radiation = .TRUE. !< flag parameter indicing whether shortwave radiation shall be calculated
[1585]	190
[1496]	191
[1691]	192	REAL(wp), PARAMETER :: d_seconds_hour = 0.000277777777778_wp, & !< inverse of seconds per hour (1/3600)
	193	d_hours_day = 0.0416666666667_wp, & !< inverse of hours per day (1/24)
	194	sigma_sb = 5.67037321E-8_wp, & !< Stefan-Boltzmann constant
	195	solar_constant = 1368.0_wp !< solar constant at top of atmosphere
[1585]	196
[1691]	197	REAL(wp) :: albedo = 9999999.9_wp, & !< NAMELIST alpha
	198	albedo_lw_dif = 9999999.9_wp, & !< NAMELIST aldif
	199	albedo_lw_dir = 9999999.9_wp, & !< NAMELIST aldir
	200	albedo_sw_dif = 9999999.9_wp, & !< NAMELIST asdif
	201	albedo_sw_dir = 9999999.9_wp, & !< NAMELIST asdir
	202	decl_1, & !< declination coef. 1
	203	decl_2, & !< declination coef. 2
	204	decl_3, & !< declination coef. 3
	205	dt_radiation = 0.0_wp, & !< radiation model timestep
	206	emissivity = 0.98_wp, & !< NAMELIST surface emissivity
	207	lambda = 0.0_wp, & !< longitude in degrees
	208	lon = 0.0_wp, & !< longitude in radians
	209	lat = 0.0_wp, & !< latitude in radians
	210	net_radiation = 0.0_wp, & !< net radiation at surface
	211	skip_time_do_radiation = 0.0_wp, & !< Radiation model is not called before this time
	212	sky_trans, & !< sky transmissivity
	213	time_radiation = 0.0_wp, & !< time since last call of radiation code
	214	time_utc, & !< current time in UTC
	215	time_utc_init = 43200.0_wp !< UTC time at model start (noon)
	216
[1682]	217	REAL(wp), DIMENSION(0:0) :: zenith !< solar zenith angle
[1585]	218
[1496]	219	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: &
[1682]	220	alpha, & !< surface broadband albedo (used for clear-sky scheme)
[1709]	221	rad_lw_out_change_0, & !< change in LW out due to change in surface temperature
[1682]	222	rad_net, & !< net radiation at the surface
	223	rad_net_av !< average of rad_net
[1496]	224
[1585]	225	!
	226	!-- Land surface albedos for solar zenith angle of 60Â° after Briegleb (1992)
	227	!-- (shortwave, longwave, broadband): sw, lw, bb,
[1788]	228	REAL(wp), DIMENSION(0:2,1:17), PARAMETER :: albedo_pars = RESHAPE( (/&
[1585]	229	0.06_wp, 0.06_wp, 0.06_wp, & ! 1
	230	0.09_wp, 0.28_wp, 0.19_wp, & ! 2
	231	0.11_wp, 0.33_wp, 0.23_wp, & ! 3
	232	0.11_wp, 0.33_wp, 0.23_wp, & ! 4
	233	0.14_wp, 0.34_wp, 0.25_wp, & ! 5
	234	0.06_wp, 0.22_wp, 0.14_wp, & ! 6
	235	0.06_wp, 0.27_wp, 0.17_wp, & ! 7
	236	0.06_wp, 0.31_wp, 0.19_wp, & ! 8
	237	0.06_wp, 0.22_wp, 0.14_wp, & ! 9
	238	0.06_wp, 0.28_wp, 0.18_wp, & ! 10
	239	0.35_wp, 0.51_wp, 0.43_wp, & ! 11
	240	0.24_wp, 0.40_wp, 0.32_wp, & ! 12
	241	0.10_wp, 0.27_wp, 0.19_wp, & ! 13
	242	0.90_wp, 0.65_wp, 0.77_wp, & ! 14
[1587]	243	0.90_wp, 0.65_wp, 0.77_wp, & ! 15
[1788]	244	0.95_wp, 0.70_wp, 0.82_wp, & ! 16
	245	0.08_wp, 0.08_wp, 0.08_wp & ! 17
	246	/), (/ 3, 17 /) )
[1496]	247
[1585]	248	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE, TARGET :: &
[1691]	249	rad_lw_cs_hr, & !< longwave clear sky radiation heating rate (K/s)
	250	rad_lw_cs_hr_av, & !< average of rad_lw_cs_hr
	251	rad_lw_hr, & !< longwave radiation heating rate (K/s)
	252	rad_lw_hr_av, & !< average of rad_sw_hr
	253	rad_lw_in, & !< incoming longwave radiation (W/m2)
	254	rad_lw_in_av, & !< average of rad_lw_in
	255	rad_lw_out, & !< outgoing longwave radiation (W/m2)
	256	rad_lw_out_av, & !< average of rad_lw_out
	257	rad_sw_cs_hr, & !< shortwave clear sky radiation heating rate (K/s)
	258	rad_sw_cs_hr_av, & !< average of rad_sw_cs_hr
	259	rad_sw_hr, & !< shortwave radiation heating rate (K/s)
	260	rad_sw_hr_av, & !< average of rad_sw_hr
[1682]	261	rad_sw_in, & !< incoming shortwave radiation (W/m2)
	262	rad_sw_in_av, & !< average of rad_sw_in
	263	rad_sw_out, & !< outgoing shortwave radiation (W/m2)
[1691]	264	rad_sw_out_av !< average of rad_sw_out
[1585]	265
[1691]	266
[1585]	267	!
	268	!-- Variables and parameters used in RRTMG only
	269	#if defined ( __rrtmg )
[1682]	270	CHARACTER(LEN=12) :: rrtm_input_file = "RAD_SND_DATA" !< name of the NetCDF input file (sounding data)
[1585]	271
	272
	273	!
	274	!-- Flag parameters for RRTMGS (should not be changed)
[1682]	275	INTEGER(iwp), PARAMETER :: rrtm_inflglw = 2, & !< flag for lw cloud optical properties (0,1,2)
	276	rrtm_iceflglw = 0, & !< flag for lw ice particle specifications (0,1,2,3)
	277	rrtm_liqflglw = 1, & !< flag for lw liquid droplet specifications
	278	rrtm_inflgsw = 2, & !< flag for sw cloud optical properties (0,1,2)
	279	rrtm_iceflgsw = 0, & !< flag for sw ice particle specifications (0,1,2,3)
	280	rrtm_liqflgsw = 1 !< flag for sw liquid droplet specifications
[1585]	281
	282	!
	283	!-- The following variables should be only changed with care, as this will
	284	!-- require further setting of some variables, which is currently not
	285	!-- implemented (aerosols, ice phase).
[1682]	286	INTEGER(iwp) :: nzt_rad, & !< upper vertical limit for radiation calculations
	287	rrtm_icld = 0, & !< cloud flag (0: clear sky column, 1: cloudy column)
	288	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]	289	rrtm_idrv = 1 !< longwave upward flux calculation option (0,1)
[1585]	290
[1788]	291	INTEGER(iwp) :: nc_stat !< local variable for storin the result of netCDF calls for error message handling
	292
[1682]	293	LOGICAL :: snd_exists = .FALSE. !< flag parameter to check whether a user-defined input files exists
[1585]	294
[1691]	295	REAL(wp), PARAMETER :: mol_mass_air_d_wv = 1.607793_wp !< molecular weight dry air / water vapor
[1585]	296
[1682]	297	REAL(wp), DIMENSION(:), ALLOCATABLE :: hyp_snd, & !< hypostatic pressure from sounding data (hPa)
	298	q_snd, & !< specific humidity from sounding data (kg/kg) - dummy at the moment
	299	rrtm_tsfc, & !< dummy array for storing surface temperature
	300	t_snd !< actual temperature from sounding data (hPa)
[1585]	301
[1691]	302	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: aldif, & !< longwave diffuse albedo solar angle of 60Â°
	303	aldir, & !< longwave direct albedo solar angle of 60Â°
	304	asdif, & !< shortwave diffuse albedo solar angle of 60Â°
	305	asdir, & !< shortwave direct albedo solar angle of 60Â°
	306	rrtm_ccl4vmr, & !< CCL4 volume mixing ratio (g/mol)
	307	rrtm_cfc11vmr, & !< CFC11 volume mixing ratio (g/mol)
	308	rrtm_cfc12vmr, & !< CFC12 volume mixing ratio (g/mol)
	309	rrtm_cfc22vmr, & !< CFC22 volume mixing ratio (g/mol)
	310	rrtm_ch4vmr, & !< CH4 volume mixing ratio
	311	rrtm_cicewp, & !< in-cloud ice water path (g/mÂ²)
	312	rrtm_cldfr, & !< cloud fraction (0,1)
	313	rrtm_cliqwp, & !< in-cloud liquid water path (g/mÂ²)
	314	rrtm_co2vmr, & !< CO2 volume mixing ratio (g/mol)
	315	rrtm_emis, & !< surface emissivity (0-1)
	316	rrtm_h2ovmr, & !< H2O volume mixing ratio
	317	rrtm_n2ovmr, & !< N2O volume mixing ratio
	318	rrtm_o2vmr, & !< O2 volume mixing ratio
	319	rrtm_o3vmr, & !< O3 volume mixing ratio
	320	rrtm_play, & !< pressure layers (hPa, zu-grid)
	321	rrtm_plev, & !< pressure layers (hPa, zw-grid)
	322	rrtm_reice, & !< cloud ice effective radius (microns)
	323	rrtm_reliq, & !< cloud water drop effective radius (microns)
	324	rrtm_tlay, & !< actual temperature (K, zu-grid)
	325	rrtm_tlev, & !< actual temperature (K, zw-grid)
	326	rrtm_lwdflx, & !< RRTM output of incoming longwave radiation flux (W/m2)
	327	rrtm_lwdflxc, & !< RRTM output of outgoing clear sky longwave radiation flux (W/m2)
	328	rrtm_lwuflx, & !< RRTM output of outgoing longwave radiation flux (W/m2)
	329	rrtm_lwuflxc, & !< RRTM output of incoming clear sky longwave radiation flux (W/m2)
	330	rrtm_lwuflx_dt, & !< RRTM output of incoming clear sky longwave radiation flux (W/m2)
	331	rrtm_lwuflxc_dt,& !< RRTM output of outgoing clear sky longwave radiation flux (W/m2)
	332	rrtm_lwhr, & !< RRTM output of longwave radiation heating rate (K/d)
	333	rrtm_lwhrc, & !< RRTM output of incoming longwave clear sky radiation heating rate (K/d)
	334	rrtm_swdflx, & !< RRTM output of incoming shortwave radiation flux (W/m2)
	335	rrtm_swdflxc, & !< RRTM output of outgoing clear sky shortwave radiation flux (W/m2)
	336	rrtm_swuflx, & !< RRTM output of outgoing shortwave radiation flux (W/m2)
	337	rrtm_swuflxc, & !< RRTM output of incoming clear sky shortwave radiation flux (W/m2)
	338	rrtm_swhr, & !< RRTM output of shortwave radiation heating rate (K/d)
	339	rrtm_swhrc !< RRTM output of incoming shortwave clear sky radiation heating rate (K/d)
[1585]	340
	341	!
	342	!-- Definition of arrays that are currently not used for calling RRTMG (due to setting of flag parameters)
[1682]	343	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: rad_lw_cs_in, & !< incoming clear sky longwave radiation (W/m2) (not used)
	344	rad_lw_cs_out, & !< outgoing clear sky longwave radiation (W/m2) (not used)
	345	rad_sw_cs_in, & !< incoming clear sky shortwave radiation (W/m2) (not used)
	346	rad_sw_cs_out, & !< outgoing clear sky shortwave radiation (W/m2) (not used)
	347	rrtm_aldif, & !< surface albedo for longwave diffuse radiation
	348	rrtm_aldir, & !< surface albedo for longwave direct radiation
	349	rrtm_asdif, & !< surface albedo for shortwave diffuse radiation
	350	rrtm_asdir, & !< surface albedo for shortwave direct radiation
	351	rrtm_lw_tauaer, & !< lw aerosol optical depth
	352	rrtm_lw_taucld, & !< lw in-cloud optical depth
	353	rrtm_sw_taucld, & !< sw in-cloud optical depth
	354	rrtm_sw_ssacld, & !< sw in-cloud single scattering albedo
	355	rrtm_sw_asmcld, & !< sw in-cloud asymmetry parameter
	356	rrtm_sw_fsfcld, & !< sw in-cloud forward scattering fraction
	357	rrtm_sw_tauaer, & !< sw aerosol optical depth
	358	rrtm_sw_ssaaer, & !< sw aerosol single scattering albedo
	359	rrtm_sw_asmaer, & !< sw aerosol asymmetry parameter
	360	rrtm_sw_ecaer !< sw aerosol optical detph at 0.55 microns (rrtm_iaer = 6 only)
[1691]	361
[1585]	362	#endif
	363
[1826]	364	INTERFACE radiation_check_data_output
	365	MODULE PROCEDURE radiation_check_data_output
	366	END INTERFACE radiation_check_data_output
[1496]	367
[1826]	368	INTERFACE radiation_check_data_output_pr
	369	MODULE PROCEDURE radiation_check_data_output_pr
	370	END INTERFACE radiation_check_data_output_pr
	371
	372	INTERFACE radiation_check_parameters
	373	MODULE PROCEDURE radiation_check_parameters
	374	END INTERFACE radiation_check_parameters
	375
[1551]	376	INTERFACE radiation_clearsky
	377	MODULE PROCEDURE radiation_clearsky
	378	END INTERFACE radiation_clearsky
[1853]	379
	380	INTERFACE radiation_constant
	381	MODULE PROCEDURE radiation_constant
	382	END INTERFACE radiation_constant
	383
[1826]	384	INTERFACE radiation_header
	385	MODULE PROCEDURE radiation_header
	386	END INTERFACE radiation_header
	387
	388	INTERFACE radiation_init
	389	MODULE PROCEDURE radiation_init
	390	END INTERFACE radiation_init
[1496]	391
[1826]	392	INTERFACE radiation_parin
	393	MODULE PROCEDURE radiation_parin
	394	END INTERFACE radiation_parin
	395
[1585]	396	INTERFACE radiation_rrtmg
	397	MODULE PROCEDURE radiation_rrtmg
	398	END INTERFACE radiation_rrtmg
[1551]	399
[1585]	400	INTERFACE radiation_tendency
	401	MODULE PROCEDURE radiation_tendency
	402	MODULE PROCEDURE radiation_tendency_ij
	403	END INTERFACE radiation_tendency
[1551]	404
[1496]	405	SAVE
	406
	407	PRIVATE
	408
[1826]	409	!
	410	!-- Public functions
	411	PUBLIC radiation_check_data_output, radiation_check_data_output_pr, &
[1853]	412	radiation_check_parameters, radiation_clearsky, radiation_constant, &
	413	radiation_header, radiation_init, radiation_parin, radiation_rrtmg, &
	414	radiation_tendency
[1826]	415
	416	!
	417	!-- Public variables and constants
	418	PUBLIC dots_rad, dt_radiation, force_radiation_call, &
	419	rad_net, rad_net_av, radiation, radiation_scheme, rad_lw_in, &
	420	rad_lw_in_av, rad_lw_out, rad_lw_out_av, rad_lw_out_change_0, &
	421	rad_lw_cs_hr, rad_lw_cs_hr_av, rad_lw_hr, rad_lw_hr_av, rad_sw_in, &
	422	rad_sw_in_av, rad_sw_out, rad_sw_out_av, rad_sw_cs_hr, &
	423	rad_sw_cs_hr_av, rad_sw_hr, rad_sw_hr_av, sigma_sb, &
	424	skip_time_do_radiation, time_radiation, unscheduled_radiation_calls
[1496]	425
[1691]	426
[1585]	427	#if defined ( __rrtmg )
[1709]	428	PUBLIC rrtm_aldif, rrtm_aldir, rrtm_asdif, rrtm_asdir, rrtm_idrv
[1585]	429	#endif
[1496]	430
	431	CONTAINS
	432
	433	!------------------------------------------------------------------------------!
	434	! Description:
	435	! ------------
[1826]	436	!> Check data output for radiation model
	437	!------------------------------------------------------------------------------!
	438	SUBROUTINE radiation_check_data_output( var, unit, i, ilen, k )
	439
	440
	441	USE control_parameters, &
	442	ONLY: data_output, message_string
	443
	444	IMPLICIT NONE
	445
	446	CHARACTER (LEN=*) :: unit !<
	447	CHARACTER (LEN=*) :: var !<
	448
	449	INTEGER(iwp) :: i
	450	INTEGER(iwp) :: ilen
	451	INTEGER(iwp) :: k
	452
	453	SELECT CASE ( TRIM( var ) )
	454
	455	CASE ( 'rad_lw_in', 'rad_lw_out', 'rad_lw_cs_hr', 'rad_lw_hr', &
	456	'rad_sw_in', 'rad_sw_out', 'rad_sw_cs_hr', 'rad_sw_hr' )
	457	IF ( .NOT. radiation .OR. radiation_scheme /= 'rrtmg' ) THEN
	458	message_string = '"output of "' // TRIM( var ) // '" requi' // &
	459	'res radiation = .TRUE. and ' // &
	460	'radiation_scheme = "rrtmg"'
	461	CALL message( 'check_parameters', 'PA0406', 1, 2, 0, 6, 0 )
	462	ENDIF
	463	unit = 'W/m2'
	464
	465	CASE ( 'rad_net', 'rrtm_aldif', 'rrtm_aldir', 'rrtm_asdif', &
	466	'rrtm_asdir*' )
	467	IF ( k == 0 .OR. data_output(i)(ilen-2:ilen) /= '_xy' ) THEN
	468	message_string = 'illegal value for data_output: "' // &
	469	TRIM( var ) // '" & only 2d-horizontal ' // &
	470	'cross sections are allowed for this value'
	471	CALL message( 'check_parameters', 'PA0111', 1, 2, 0, 6, 0 )
	472	ENDIF
	473	IF ( .NOT. radiation .OR. radiation_scheme /= "rrtmg" ) THEN
	474	IF ( TRIM( var ) == 'rrtm_aldif*' .OR. &
	475	TRIM( var ) == 'rrtm_aldir*' .OR. &
	476	TRIM( var ) == 'rrtm_asdif*' .OR. &
	477	TRIM( var ) == 'rrtm_asdir*' ) &
	478	THEN
	479	message_string = 'output of "' // TRIM( var ) // '" require'&
	480	// 's radiation = .TRUE. and radiation_sch'&
	481	// 'eme = "rrtmg"'
	482	CALL message( 'check_parameters', 'PA0409', 1, 2, 0, 6, 0 )
	483	ENDIF
	484	ENDIF
	485
	486	IF ( TRIM( var ) == 'rad_net*' ) unit = 'W/m2'
	487	IF ( TRIM( var ) == 'rrtm_aldif*' ) unit = ''
	488	IF ( TRIM( var ) == 'rrtm_aldir*' ) unit = ''
	489	IF ( TRIM( var ) == 'rrtm_asdif*' ) unit = ''
	490	IF ( TRIM( var ) == 'rrtm_asdir*' ) unit = ''
	491
	492	CASE DEFAULT
	493	unit = 'illegal'
	494
	495	END SELECT
	496
	497
	498	END SUBROUTINE radiation_check_data_output
	499
	500	!------------------------------------------------------------------------------!
	501	! Description:
	502	! ------------
	503	!> Check data output of profiles for radiation model
	504	!------------------------------------------------------------------------------!
	505	SUBROUTINE radiation_check_data_output_pr( variable, var_count, unit, dopr_unit )
	506
	507	USE arrays_3d, &
	508	ONLY: zu
	509
	510	USE control_parameters, &
	511	ONLY: data_output_pr, message_string
	512
	513	USE indices
	514
	515	USE profil_parameter
	516
	517	USE statistics
	518
	519	IMPLICIT NONE
	520
	521	CHARACTER (LEN=*) :: unit !<
	522	CHARACTER (LEN=*) :: variable !<
	523	CHARACTER (LEN=*) :: dopr_unit !< local value of dopr_unit
	524
	525	INTEGER(iwp) :: user_pr_index !<
	526	INTEGER(iwp) :: var_count !<
	527
	528	SELECT CASE ( TRIM( variable ) )
	529
	530	CASE ( 'rad_net' )
	531	IF ( ( .NOT. radiation ) .OR. radiation_scheme == 'constant' )&
	532	THEN
	533	message_string = 'data_output_pr = ' // &
	534	TRIM( data_output_pr(var_count) ) // ' is' // &
	535	'not available for radiation = .FALSE. or ' //&
	536	'radiation_scheme = "constant"'
	537	CALL message( 'check_parameters', 'PA0408', 1, 2, 0, 6, 0 )
	538	ELSE
	539	dopr_index(var_count) = 101
	540	dopr_unit = 'W/m2'
	541	hom(:,2,101,:) = SPREAD( zw, 2, statistic_regions+1 )
	542	unit = dopr_unit
	543	ENDIF
	544
	545	CASE ( 'rad_lw_in' )
	546	IF ( ( .NOT. radiation) .OR. radiation_scheme == 'constant' ) &
	547	THEN
	548	message_string = 'data_output_pr = ' // &
	549	TRIM( data_output_pr(var_count) ) // ' is' // &
	550	'not available for radiation = .FALSE. or ' //&
	551	'radiation_scheme = "constant"'
	552	CALL message( 'check_parameters', 'PA0408', 1, 2, 0, 6, 0 )
	553	ELSE
	554	dopr_index(var_count) = 102
	555	dopr_unit = 'W/m2'
	556	hom(:,2,102,:) = SPREAD( zw, 2, statistic_regions+1 )
	557	unit = dopr_unit
	558	ENDIF
	559
	560	CASE ( 'rad_lw_out' )
	561	IF ( ( .NOT. radiation ) .OR. radiation_scheme == 'constant' ) &
	562	THEN
	563	message_string = 'data_output_pr = ' // &
	564	TRIM( data_output_pr(var_count) ) // ' is' // &
	565	'not available for radiation = .FALSE. or ' //&
	566	'radiation_scheme = "constant"'
	567	CALL message( 'check_parameters', 'PA0408', 1, 2, 0, 6, 0 )
	568	ELSE
	569	dopr_index(var_count) = 103
	570	dopr_unit = 'W/m2'
	571	hom(:,2,103,:) = SPREAD( zw, 2, statistic_regions+1 )
	572	unit = dopr_unit
	573	ENDIF
	574
	575	CASE ( 'rad_sw_in' )
	576	IF ( ( .NOT. radiation ) .OR. radiation_scheme == 'constant' ) &
	577	THEN
	578	message_string = 'data_output_pr = ' // &
	579	TRIM( data_output_pr(var_count) ) // ' is' // &
	580	'not available for radiation = .FALSE. or ' //&
	581	'radiation_scheme = "constant"'
	582	CALL message( 'check_parameters', 'PA0408', 1, 2, 0, 6, 0 )
	583	ELSE
	584	dopr_index(var_count) = 104
	585	dopr_unit = 'W/m2'
	586	hom(:,2,104,:) = SPREAD( zw, 2, statistic_regions+1 )
	587	unit = dopr_unit
	588	ENDIF
	589
	590	CASE ( 'rad_sw_out')
	591	IF ( ( .NOT. radiation ) .OR. radiation_scheme == 'constant' )&
	592	THEN
	593	message_string = 'data_output_pr = ' // &
	594	TRIM( data_output_pr(var_count) ) // ' is' // &
	595	'not available for radiation = .FALSE. or ' //&
	596	'radiation_scheme = "constant"'
	597	CALL message( 'check_parameters', 'PA0408', 1, 2, 0, 6, 0 )
	598	ELSE
	599	dopr_index(var_count) = 105
	600	dopr_unit = 'W/m2'
	601	hom(:,2,105,:) = SPREAD( zw, 2, statistic_regions+1 )
	602	unit = dopr_unit
	603	ENDIF
	604
	605	CASE ( 'rad_lw_cs_hr' )
	606	IF ( ( .NOT. radiation ) .OR. radiation_scheme /= 'rrtmg' ) &
	607	THEN
	608	message_string = 'data_output_pr = ' // &
	609	TRIM( data_output_pr(var_count) ) // ' is' // &
	610	'not available for radiation = .FALSE. or ' //&
	611	'radiation_scheme /= "rrtmg"'
	612	CALL message( 'check_parameters', 'PA0413', 1, 2, 0, 6, 0 )
	613	ELSE
	614	dopr_index(var_count) = 106
	615	dopr_unit = 'K/h'
	616	hom(:,2,106,:) = SPREAD( zu, 2, statistic_regions+1 )
	617	unit = dopr_unit
	618	ENDIF
	619
	620	CASE ( 'rad_lw_hr' )
	621	IF ( ( .NOT. radiation ) .OR. radiation_scheme /= 'rrtmg' ) &
	622	THEN
	623	message_string = 'data_output_pr = ' // &
	624	TRIM( data_output_pr(var_count) ) // ' is' // &
	625	'not available for radiation = .FALSE. or ' //&
	626	'radiation_scheme /= "rrtmg"'
	627	CALL message( 'check_parameters', 'PA0413', 1, 2, 0, 6, 0 )
	628	ELSE
	629	dopr_index(var_count) = 107
	630	dopr_unit = 'K/h'
	631	hom(:,2,107,:) = SPREAD( zu, 2, statistic_regions+1 )
	632	unit = dopr_unit
	633	ENDIF
	634
	635	CASE ( 'rad_sw_cs_hr' )
	636	IF ( ( .NOT. radiation ) .OR. radiation_scheme /= 'rrtmg' ) &
	637	THEN
	638	message_string = 'data_output_pr = ' // &
	639	TRIM( data_output_pr(var_count) ) // ' is' // &
	640	'not available for radiation = .FALSE. or ' //&
	641	'radiation_scheme /= "rrtmg"'
	642	CALL message( 'check_parameters', 'PA0413', 1, 2, 0, 6, 0 )
	643	ELSE
	644	dopr_index(var_count) = 108
	645	dopr_unit = 'K/h'
	646	hom(:,2,108,:) = SPREAD( zu, 2, statistic_regions+1 )
	647	unit = dopr_unit
	648	ENDIF
	649
	650	CASE ( 'rad_sw_hr' )
	651	IF ( ( .NOT. radiation ) .OR. radiation_scheme /= 'rrtmg' ) &
	652	THEN
	653	message_string = 'data_output_pr = ' // &
	654	TRIM( data_output_pr(var_count) ) // ' is' // &
	655	'not available for radiation = .FALSE. or ' //&
	656	'radiation_scheme /= "rrtmg"'
	657	CALL message( 'check_parameters', 'PA0413', 1, 2, 0, 6, 0 )
	658	ELSE
	659	dopr_index(var_count) = 109
	660	dopr_unit = 'K/h'
	661	hom(:,2,109,:) = SPREAD( zu, 2, statistic_regions+1 )
	662	unit = dopr_unit
	663	ENDIF
	664
	665
	666	CASE DEFAULT
	667	unit = 'illegal'
	668
	669	END SELECT
	670
	671
	672	END SUBROUTINE radiation_check_data_output_pr
	673
	674
	675	!------------------------------------------------------------------------------!
	676	! Description:
	677	! ------------
	678	!> Check parameters routine for radiation model
	679	!------------------------------------------------------------------------------!
	680	SUBROUTINE radiation_check_parameters
	681
	682	USE control_parameters, &
	683	ONLY: message_string, topography
	684
	685
	686	IMPLICIT NONE
	687
	688	IF ( radiation_scheme /= 'constant' .AND. &
	689	radiation_scheme /= 'clear-sky' .AND. &
	690	radiation_scheme /= 'rrtmg' ) THEN
	691	message_string = 'unknown radiation_scheme = '// &
	692	TRIM( radiation_scheme )
	693	CALL message( 'check_parameters', 'PA0405', 1, 2, 0, 6, 0 )
	694	ELSEIF ( radiation_scheme == 'rrtmg' ) THEN
	695	#if ! defined ( __rrtmg )
	696	message_string = 'radiation_scheme = "rrtmg" requires ' // &
	697	'compilation of PALM with pre-processor ' // &
	698	'directive -D__rrtmg'
	699	CALL message( 'check_parameters', 'PA0407', 1, 2, 0, 6, 0 )
	700	#endif
	701	#if defined ( __rrtmg ) && ! defined( __netcdf )
	702	message_string = 'radiation_scheme = "rrtmg" requires ' // &
	703	'the use of NetCDF (preprocessor directive ' // &
	704	'-D__netcdf'
	705	CALL message( 'check_parameters', 'PA0412', 1, 2, 0, 6, 0 )
	706	#endif
	707
	708	ENDIF
	709
	710	IF ( albedo_type == 0 .AND. albedo == 9999999.9_wp .AND. &
	711	radiation_scheme == 'clear-sky') THEN
	712	message_string = 'radiation_scheme = "clear-sky" in combination' // &
	713	'with albedo_type = 0 requires setting of albedo'// &
	714	' /= 9999999.9'
	715	CALL message( 'check_parameters', 'PA0410', 1, 2, 0, 6, 0 )
	716	ENDIF
	717
	718	IF ( albedo_type == 0 .AND. radiation_scheme == 'rrtmg' .AND. &
	719	( albedo_lw_dif == 9999999.9_wp .OR. albedo_lw_dir == 9999999.9_wp&
	720	.OR. albedo_sw_dif == 9999999.9_wp .OR. albedo_sw_dir == 9999999.9_wp&
	721	) ) THEN
	722	message_string = 'radiation_scheme = "rrtmg" in combination' // &
	723	'with albedo_type = 0 requires setting of ' // &
	724	'albedo_lw_dif /= 9999999.9' // &
	725	'albedo_lw_dir /= 9999999.9' // &
	726	'albedo_sw_dif /= 9999999.9 and' // &
	727	'albedo_sw_dir /= 9999999.9'
	728	CALL message( 'check_parameters', 'PA0411', 1, 2, 0, 6, 0 )
	729	ENDIF
	730
	731	IF ( topography /= 'flat' ) THEN
	732	message_string = 'radiation scheme cannot be used ' // &
	733	'in combination with topography /= "flat"'
	734	CALL message( 'check_parameters', 'PA0414', 1, 2, 0, 6, 0 )
	735	ENDIF
	736
	737	END SUBROUTINE radiation_check_parameters
	738
	739
	740	!------------------------------------------------------------------------------!
	741	! Description:
	742	! ------------
[1682]	743	!> Initialization of the radiation model
[1496]	744	!------------------------------------------------------------------------------!
[1826]	745	SUBROUTINE radiation_init
[1496]	746
	747	IMPLICIT NONE
	748
[1585]	749	!
	750	!-- Allocate array for storing the surface net radiation
	751	IF ( .NOT. ALLOCATED ( rad_net ) ) THEN
	752	ALLOCATE ( rad_net(nysg:nyng,nxlg:nxrg) )
	753	rad_net = 0.0_wp
	754	ENDIF
[1496]	755
	756	!
[1709]	757	!-- Allocate array for storing the surface net radiation
	758	IF ( .NOT. ALLOCATED ( rad_lw_out_change_0 ) ) THEN
	759	ALLOCATE ( rad_lw_out_change_0(nysg:nyng,nxlg:nxrg) )
	760	rad_lw_out_change_0 = 0.0_wp
	761	ENDIF
	762
	763	!
[1551]	764	!-- Fix net radiation in case of radiation_scheme = 'constant'
[1585]	765	IF ( radiation_scheme == 'constant' ) THEN
[1551]	766	rad_net = net_radiation
[1853]	767	! radiation = .FALSE.
[1551]	768	!
[1585]	769	!-- Calculate orbital constants
	770	ELSE
[1551]	771	decl_1 = SIN(23.45_wp * pi / 180.0_wp)
	772	decl_2 = 2.0_wp * pi / 365.0_wp
	773	decl_3 = decl_2 * 81.0_wp
[1585]	774	lat = phi * pi / 180.0_wp
	775	lon = lambda * pi / 180.0_wp
	776	ENDIF
	777
	778
[1853]	779	IF ( radiation_scheme == 'constant' ) THEN
	780
	781	IF ( .NOT. ALLOCATED ( rad_lw_out ) ) THEN
	782	ALLOCATE ( rad_lw_out(0:0,nysg:nyng,nxlg:nxrg) )
	783	ENDIF
	784
	785	ENDIF
	786
[1585]	787	IF ( radiation_scheme == 'clear-sky' ) THEN
	788
	789	ALLOCATE ( alpha(nysg:nyng,nxlg:nxrg) )
	790
	791	IF ( .NOT. ALLOCATED ( rad_sw_in ) ) THEN
	792	ALLOCATE ( rad_sw_in(0:0,nysg:nyng,nxlg:nxrg) )
	793	ENDIF
	794	IF ( .NOT. ALLOCATED ( rad_sw_out ) ) THEN
	795	ALLOCATE ( rad_sw_out(0:0,nysg:nyng,nxlg:nxrg) )
	796	ENDIF
	797
	798	IF ( .NOT. ALLOCATED ( rad_sw_in_av ) ) THEN
	799	ALLOCATE ( rad_sw_in_av(0:0,nysg:nyng,nxlg:nxrg) )
	800	ENDIF
	801	IF ( .NOT. ALLOCATED ( rad_sw_out_av ) ) THEN
	802	ALLOCATE ( rad_sw_out_av(0:0,nysg:nyng,nxlg:nxrg) )
	803	ENDIF
	804
	805	IF ( .NOT. ALLOCATED ( rad_lw_in ) ) THEN
	806	ALLOCATE ( rad_lw_in(0:0,nysg:nyng,nxlg:nxrg) )
	807	ENDIF
	808
	809	IF ( .NOT. ALLOCATED ( rad_lw_in_av ) ) THEN
	810	ALLOCATE ( rad_lw_in_av(0:0,nysg:nyng,nxlg:nxrg) )
	811	ENDIF
	812	IF ( .NOT. ALLOCATED ( rad_lw_out_av ) ) THEN
	813	ALLOCATE ( rad_lw_out_av(0:0,nysg:nyng,nxlg:nxrg) )
	814	ENDIF
	815
	816	rad_sw_in = 0.0_wp
	817	rad_sw_out = 0.0_wp
	818	rad_lw_in = 0.0_wp
	819	rad_lw_out = 0.0_wp
	820
[1496]	821	!
[1585]	822	!-- Overwrite albedo if manually set in parameter file
	823	IF ( albedo_type /= 0 .AND. albedo == 9999999.9_wp ) THEN
	824	albedo = albedo_pars(2,albedo_type)
	825	ENDIF
	826
	827	alpha = albedo
	828
	829	!
	830	!-- Initialization actions for RRTMG
	831	ELSEIF ( radiation_scheme == 'rrtmg' ) THEN
	832	#if defined ( __rrtmg )
	833	!
	834	!-- Allocate albedos
	835	ALLOCATE ( rrtm_aldif(0:0,nysg:nyng,nxlg:nxrg) )
	836	ALLOCATE ( rrtm_aldir(0:0,nysg:nyng,nxlg:nxrg) )
	837	ALLOCATE ( rrtm_asdif(0:0,nysg:nyng,nxlg:nxrg) )
	838	ALLOCATE ( rrtm_asdir(0:0,nysg:nyng,nxlg:nxrg) )
	839	ALLOCATE ( aldif(nysg:nyng,nxlg:nxrg) )
	840	ALLOCATE ( aldir(nysg:nyng,nxlg:nxrg) )
	841	ALLOCATE ( asdif(nysg:nyng,nxlg:nxrg) )
	842	ALLOCATE ( asdir(nysg:nyng,nxlg:nxrg) )
	843
	844	IF ( albedo_type /= 0 ) THEN
	845	IF ( albedo_lw_dif == 9999999.9_wp ) THEN
	846	albedo_lw_dif = albedo_pars(0,albedo_type)
	847	albedo_lw_dir = albedo_lw_dif
	848	ENDIF
	849	IF ( albedo_sw_dif == 9999999.9_wp ) THEN
	850	albedo_sw_dif = albedo_pars(1,albedo_type)
	851	albedo_sw_dir = albedo_sw_dif
	852	ENDIF
	853	ENDIF
	854
	855	aldif(:,:) = albedo_lw_dif
	856	aldir(:,:) = albedo_lw_dir
	857	asdif(:,:) = albedo_sw_dif
	858	asdir(:,:) = albedo_sw_dir
	859	!
	860	!-- Calculate initial values of current (cosine of) the zenith angle and
	861	!-- whether the sun is up
	862	CALL calc_zenith
	863	!
	864	!-- Calculate initial surface albedo
	865	IF ( .NOT. constant_albedo ) THEN
	866	CALL calc_albedo
	867	ELSE
	868	rrtm_aldif(0,:,:) = aldif(:,:)
	869	rrtm_aldir(0,:,:) = aldir(:,:)
	870	rrtm_asdif(0,:,:) = asdif(:,:)
	871	rrtm_asdir(0,:,:) = asdir(:,:)
	872	ENDIF
	873
	874	!
	875	!-- Allocate surface emissivity
	876	ALLOCATE ( rrtm_emis(0:0,1:nbndlw+1) )
	877	rrtm_emis = emissivity
	878
	879	!
	880	!-- Allocate 3d arrays of radiative fluxes and heating rates
	881	IF ( .NOT. ALLOCATED ( rad_sw_in ) ) THEN
	882	ALLOCATE ( rad_sw_in(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	883	rad_sw_in = 0.0_wp
	884	ENDIF
	885
	886	IF ( .NOT. ALLOCATED ( rad_sw_in_av ) ) THEN
	887	ALLOCATE ( rad_sw_in_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	888	ENDIF
	889
	890	IF ( .NOT. ALLOCATED ( rad_sw_out ) ) THEN
	891	ALLOCATE ( rad_sw_out(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1691]	892	rad_sw_out = 0.0_wp
[1585]	893	ENDIF
	894
	895	IF ( .NOT. ALLOCATED ( rad_sw_out_av ) ) THEN
	896	ALLOCATE ( rad_sw_out_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	897	ENDIF
	898
[1691]	899	IF ( .NOT. ALLOCATED ( rad_sw_hr ) ) THEN
	900	ALLOCATE ( rad_sw_hr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	901	rad_sw_hr = 0.0_wp
	902	ENDIF
[1585]	903
[1691]	904	IF ( .NOT. ALLOCATED ( rad_sw_hr_av ) ) THEN
	905	ALLOCATE ( rad_sw_hr_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	906	rad_sw_hr_av = 0.0_wp
	907	ENDIF
	908
	909	IF ( .NOT. ALLOCATED ( rad_sw_cs_hr ) ) THEN
	910	ALLOCATE ( rad_sw_cs_hr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	911	rad_sw_cs_hr = 0.0_wp
	912	ENDIF
	913
	914	IF ( .NOT. ALLOCATED ( rad_sw_cs_hr_av ) ) THEN
	915	ALLOCATE ( rad_sw_cs_hr_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	916	rad_sw_cs_hr_av = 0.0_wp
	917	ENDIF
	918
[1585]	919	IF ( .NOT. ALLOCATED ( rad_lw_in ) ) THEN
	920	ALLOCATE ( rad_lw_in(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	921	rad_lw_in = 0.0_wp
	922	ENDIF
	923
	924	IF ( .NOT. ALLOCATED ( rad_lw_in_av ) ) THEN
	925	ALLOCATE ( rad_lw_in_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	926	ENDIF
	927
	928	IF ( .NOT. ALLOCATED ( rad_lw_out ) ) THEN
	929	ALLOCATE ( rad_lw_out(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	930	rad_lw_out = 0.0_wp
	931	ENDIF
	932
	933	IF ( .NOT. ALLOCATED ( rad_lw_out_av ) ) THEN
	934	ALLOCATE ( rad_lw_out_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	935	ENDIF
	936
[1691]	937	IF ( .NOT. ALLOCATED ( rad_lw_hr ) ) THEN
	938	ALLOCATE ( rad_lw_hr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	939	rad_lw_hr = 0.0_wp
	940	ENDIF
	941
	942	IF ( .NOT. ALLOCATED ( rad_lw_hr_av ) ) THEN
	943	ALLOCATE ( rad_lw_hr_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	944	rad_lw_hr_av = 0.0_wp
	945	ENDIF
	946
	947	IF ( .NOT. ALLOCATED ( rad_lw_cs_hr ) ) THEN
	948	ALLOCATE ( rad_lw_cs_hr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	949	rad_lw_cs_hr = 0.0_wp
	950	ENDIF
	951
	952	IF ( .NOT. ALLOCATED ( rad_lw_cs_hr_av ) ) THEN
	953	ALLOCATE ( rad_lw_cs_hr_av(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	954	rad_lw_cs_hr_av = 0.0_wp
	955	ENDIF
	956
	957	ALLOCATE ( rad_sw_cs_in(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	958	ALLOCATE ( rad_sw_cs_out(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1585]	959	rad_sw_cs_in = 0.0_wp
	960	rad_sw_cs_out = 0.0_wp
	961
[1691]	962	ALLOCATE ( rad_lw_cs_in(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	963	ALLOCATE ( rad_lw_cs_out(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1585]	964	rad_lw_cs_in = 0.0_wp
	965	rad_lw_cs_out = 0.0_wp
	966
	967	!
	968	!-- Allocate dummy array for storing surface temperature
	969	ALLOCATE ( rrtm_tsfc(1) )
	970
	971	!
	972	!-- Initialize RRTMG
	973	IF ( lw_radiation ) CALL rrtmg_lw_ini ( cp )
	974	IF ( sw_radiation ) CALL rrtmg_sw_ini ( cp )
	975
	976	!
	977	!-- Set input files for RRTMG
	978	INQUIRE(FILE="RAD_SND_DATA", EXIST=snd_exists)
	979	IF ( .NOT. snd_exists ) THEN
	980	rrtm_input_file = "rrtmg_lw.nc"
	981	ENDIF
	982
	983	!
	984	!-- Read vertical layers for RRTMG from sounding data
	985	!-- The routine provides nzt_rad, hyp_snd(1:nzt_rad),
	986	!-- t_snd(nzt+2:nzt_rad), rrtm_play(1:nzt_rad), rrtm_plev(1_nzt_rad+1),
	987	!-- rrtm_tlay(nzt+2:nzt_rad), rrtm_tlev(nzt+2:nzt_rad+1)
	988	CALL read_sounding_data
	989
	990	!
	991	!-- Read trace gas profiles from file. This routine provides
	992	!-- the rrtm_ arrays (1:nzt_rad+1)
	993	CALL read_trace_gas_data
	994	#endif
[1551]	995	ENDIF
[1585]	996
[1551]	997	!
[1585]	998	!-- Perform user actions if required
	999	CALL user_init_radiation
	1000
	1001	!
	1002	!-- Calculate radiative fluxes at model start
	1003	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
[1853]	1004
	1005	SELECT CASE ( radiation_scheme )
	1006	CASE ( 'rrtmg' )
	1007	CALL radiation_rrtmg
	1008	CASE ( 'clear-sky' )
	1009	CALL radiation_clearsky
	1010	CASE ( 'constant' )
	1011	CALL radiation_constant
	1012	CASE DEFAULT
	1013	END SELECT
	1014
[1585]	1015	ENDIF
	1016
[1496]	1017	RETURN
	1018
[1826]	1019	END SUBROUTINE radiation_init
[1496]	1020
	1021
	1022	!------------------------------------------------------------------------------!
	1023	! Description:
	1024	! ------------
[1682]	1025	!> A simple clear sky radiation model
[1496]	1026	!------------------------------------------------------------------------------!
[1551]	1027	SUBROUTINE radiation_clearsky
[1496]	1028
[1585]	1029
[1496]	1030	IMPLICIT NONE
	1031
[1691]	1032	INTEGER(iwp) :: i, j, k !< loop indices
	1033	REAL(wp) :: exn, & !< Exner functions at surface
[1709]	1034	exn1, & !< Exner functions at first grid level
	1035	pt1 !< potential temperature at first grid level
[1585]	1036
[1496]	1037	!
[1585]	1038	!-- Calculate current zenith angle
	1039	CALL calc_zenith
	1040
	1041	!
	1042	!-- Calculate sky transmissivity
	1043	sky_trans = 0.6_wp + 0.2_wp * zenith(0)
	1044
	1045	!
	1046	!-- Calculate value of the Exner function
	1047	exn = (surface_pressure / 1000.0_wp )**0.286_wp
	1048	!
	1049	!-- Calculate radiation fluxes and net radiation (rad_net) for each grid
	1050	!-- point
[1709]	1051	DO i = nxlg, nxrg
	1052	DO j = nysg, nyng
[1585]	1053	k = nzb_s_inner(j,i)
[1691]	1054
[1709]	1055	exn1 = (hyp(k+1) / 100000.0_wp )**0.286_wp
[1691]	1056
[1585]	1057	rad_sw_in(0,j,i) = solar_constant * sky_trans * zenith(0)
	1058	rad_sw_out(0,j,i) = alpha(j,i) * rad_sw_in(0,j,i)
[1691]	1059	rad_lw_out(0,j,i) = emissivity * sigma_sb * (pt(k,j,i) * exn)**4
[1585]	1060
[1691]	1061	IF ( cloud_physics ) THEN
[1709]	1062	pt1 = pt(k+1,j,i) + l_d_cp / exn1 * ql(k+1,j,i)
	1063	rad_lw_in(0,j,i) = 0.8_wp * sigma_sb * (pt1 * exn1)**4
[1691]	1064	ELSE
[1709]	1065	rad_lw_in(0,j,i) = 0.8_wp * sigma_sb * (pt(k+1,j,i) * exn1)**4
[1691]	1066	ENDIF
	1067
	1068	rad_net(j,i) = rad_sw_in(0,j,i) - rad_sw_out(0,j,i) &
	1069	+ rad_lw_in(0,j,i) - rad_lw_out(0,j,i)
	1070
[1585]	1071	ENDDO
	1072	ENDDO
	1073
	1074	END SUBROUTINE radiation_clearsky
	1075
	1076
	1077	!------------------------------------------------------------------------------!
	1078	! Description:
	1079	! ------------
[1853]	1080	!> This scheme keeps the prescribed net radiation constant during the run
	1081	!------------------------------------------------------------------------------!
	1082	SUBROUTINE radiation_constant
	1083
	1084
	1085	IMPLICIT NONE
	1086
	1087	INTEGER(iwp) :: i, j, k !< loop indices
	1088	REAL(wp) :: exn, & !< Exner functions at surface
	1089	pt1 !< potential temperature at first grid level
	1090
	1091	!
	1092	!-- Calculate value of the Exner function
	1093	exn = (surface_pressure / 1000.0_wp )**0.286_wp
	1094	!
	1095	!-- Prescribe net radiation and estimate a longwave outgoing radiative
	1096	!-- flux (needed in land surface model)
	1097	DO i = nxlg, nxrg
	1098	DO j = nysg, nyng
	1099	k = nzb_s_inner(j,i)
	1100
	1101	rad_net(j,i) = net_radiation
	1102	rad_lw_out(0,j,i) = emissivity * sigma_sb * (pt(k,j,i) * exn)**4
	1103
	1104	ENDDO
	1105	ENDDO
	1106
	1107	END SUBROUTINE radiation_constant
	1108
	1109	!------------------------------------------------------------------------------!
	1110	! Description:
	1111	! ------------
[1826]	1112	!> Header output for radiation model
	1113	!------------------------------------------------------------------------------!
	1114	SUBROUTINE radiation_header ( io )
	1115
	1116
	1117	IMPLICIT NONE
	1118
	1119	INTEGER(iwp), INTENT(IN) :: io !< Unit of the output file
	1120
	1121
	1122
	1123	!
	1124	!-- Write radiation model header
	1125	WRITE( io, 3 )
	1126
	1127	IF ( radiation_scheme == "constant" ) THEN
	1128	WRITE( io, 4 ) net_radiation
	1129	ELSEIF ( radiation_scheme == "clear-sky" ) THEN
	1130	WRITE( io, 5 )
	1131	ELSEIF ( radiation_scheme == "rrtmg" ) THEN
	1132	WRITE( io, 6 )
	1133	IF ( .NOT. lw_radiation ) WRITE( io, 10 )
	1134	IF ( .NOT. sw_radiation ) WRITE( io, 11 )
	1135	ENDIF
	1136
	1137	IF ( albedo_type == 0 ) THEN
	1138	WRITE( io, 7 ) albedo
	1139	ELSE
	1140	WRITE( io, 8 ) TRIM( albedo_type_name(albedo_type) )
	1141	ENDIF
	1142	IF ( constant_albedo ) THEN
	1143	WRITE( io, 9 )
	1144	ENDIF
	1145
	1146	IF ( radiation .AND. radiation_scheme /= 'constant' ) THEN
	1147	WRITE ( io, 1 ) lambda
	1148	WRITE ( io, 2 ) day_init, time_utc_init
	1149	ENDIF
	1150
	1151	WRITE( io, 12 ) dt_radiation
	1152
	1153
	1154	1 FORMAT (' Geograph. longitude : lambda = ',F4.1,' degr')
	1155	2 FORMAT (' Day of the year at model start : day_init = ',I3 &
	1156	/' UTC time at model start : time_utc_init = ',F7.1' s')
	1157	3 FORMAT (//' Radiation model information:'/ &
	1158	' ----------------------------'/)
	1159	4 FORMAT (' --> Using constant net radiation: net_radiation = ', F6.2, &
	1160	// 'W/m**2')
	1161	5 FORMAT (' --> Simple radiation scheme for clear sky is used (no clouds,', &
	1162	' default)')
	1163	6 FORMAT (' --> RRTMG scheme is used')
	1164	7 FORMAT (/' User-specific surface albedo: albedo =', F6.3)
	1165	8 FORMAT (/' Albedo is set for land surface type: ', A)
	1166	9 FORMAT (/' --> Albedo is fixed during the run')
	1167	10 FORMAT (/' --> Longwave radiation is disabled')
	1168	11 FORMAT (/' --> Shortwave radiation is disabled.')
	1169	12 FORMAT (' Timestep: dt_radiation = ', F6.2, ' s')
	1170
	1171
	1172	END SUBROUTINE radiation_header
	1173
	1174
	1175	!------------------------------------------------------------------------------!
	1176	! Description:
	1177	! ------------
	1178	!> Parin for &radiation_par for radiation model
	1179	!------------------------------------------------------------------------------!
	1180	SUBROUTINE radiation_parin
	1181
	1182
	1183	IMPLICIT NONE
	1184
	1185	CHARACTER (LEN=80) :: line !< dummy string that contains the current line of the parameter file
	1186
	1187	NAMELIST /radiation_par/ albedo, albedo_type, albedo_lw_dir, &
	1188	albedo_lw_dif, albedo_sw_dir, albedo_sw_dif, &
	1189	constant_albedo, day_init, dt_radiation, &
	1190	lambda, lw_radiation, net_radiation, &
	1191	radiation_scheme, skip_time_do_radiation, &
	1192	sw_radiation, time_utc_init, &
	1193	unscheduled_radiation_calls
	1194
	1195	line = ' '
	1196
	1197	!
	1198	!-- Try to find radiation model package
	1199	REWIND ( 11 )
	1200	line = ' '
	1201	DO WHILE ( INDEX( line, '&radiation_par' ) == 0 )
	1202	READ ( 11, '(A)', END=10 ) line
	1203	ENDDO
	1204	BACKSPACE ( 11 )
	1205
	1206	!
	1207	!-- Read user-defined namelist
	1208	READ ( 11, radiation_par )
	1209
	1210	!
	1211	!-- Set flag that indicates that the radiation model is switched on
	1212	radiation = .TRUE.
	1213
	1214	10 CONTINUE
	1215
	1216
	1217	END SUBROUTINE radiation_parin
	1218
	1219
	1220	!------------------------------------------------------------------------------!
	1221	! Description:
	1222	! ------------
[1682]	1223	!> Implementation of the RRTMG radiation_scheme
[1585]	1224	!------------------------------------------------------------------------------!
	1225	SUBROUTINE radiation_rrtmg
	1226
	1227	USE indices, &
	1228	ONLY: nbgp
	1229
	1230	USE particle_attributes, &
	1231	ONLY: grid_particles, number_of_particles, particles, &
	1232	particle_advection_start, prt_count
	1233
	1234	IMPLICIT NONE
	1235
	1236	#if defined ( __rrtmg )
	1237
[1691]	1238	INTEGER(iwp) :: i, j, k, n !< loop indices
[1585]	1239
[1691]	1240	REAL(wp) :: s_r2, & !< weighted sum over all droplets with r^2
	1241	s_r3 !< weighted sum over all droplets with r^3
[1585]	1242
	1243	!
	1244	!-- Calculate current (cosine of) zenith angle and whether the sun is up
	1245	CALL calc_zenith
	1246	!
	1247	!-- Calculate surface albedo
	1248	IF ( .NOT. constant_albedo ) THEN
	1249	CALL calc_albedo
	1250	ENDIF
	1251
	1252	!
	1253	!-- Prepare input data for RRTMG
	1254
	1255	!
	1256	!-- In case of large scale forcing with surface data, calculate new pressure
	1257	!-- profile. nzt_rad might be modified by these calls and all required arrays
	1258	!-- will then be re-allocated
[1691]	1259	IF ( large_scale_forcing .AND. lsf_surf ) THEN
[1585]	1260	CALL read_sounding_data
	1261	CALL read_trace_gas_data
	1262	ENDIF
	1263	!
	1264	!-- Loop over all grid points
	1265	DO i = nxl, nxr
	1266	DO j = nys, nyn
	1267
	1268	!
	1269	!-- Prepare profiles of temperature and H2O volume mixing ratio
[1691]	1270	rrtm_tlev(0,nzb+1) = pt(nzb,j,i) * ( surface_pressure &
	1271	/ 1000.0_wp )**0.286_wp
[1585]	1272
	1273	DO k = nzb+1, nzt+1
	1274	rrtm_tlay(0,k) = pt(k,j,i) * ( (hyp(k) ) / 100000.0_wp &
[1691]	1275	)*0.286_wp + l_d_cp ql(k,j,i)
	1276	rrtm_h2ovmr(0,k) = mol_mass_air_d_wv * (q(k,j,i) - ql(k,j,i))
[1585]	1277
	1278	ENDDO
	1279
	1280	!
	1281	!-- Avoid temperature/humidity jumps at the top of the LES domain by
	1282	!-- linear interpolation from nzt+2 to nzt+7
	1283	DO k = nzt+2, nzt+7
	1284	rrtm_tlay(0,k) = rrtm_tlay(0,nzt+1) &
	1285	+ ( rrtm_tlay(0,nzt+8) - rrtm_tlay(0,nzt+1) ) &
	1286	/ ( rrtm_play(0,nzt+8) - rrtm_play(0,nzt+1) ) &
	1287	* ( rrtm_play(0,k) - rrtm_play(0,nzt+1) )
	1288
	1289	rrtm_h2ovmr(0,k) = rrtm_h2ovmr(0,nzt+1) &
	1290	+ ( rrtm_h2ovmr(0,nzt+8) - rrtm_h2ovmr(0,nzt+1) )&
	1291	/ ( rrtm_play(0,nzt+8) - rrtm_play(0,nzt+1) )&
	1292	* ( rrtm_play(0,k) - rrtm_play(0,nzt+1) )
	1293
	1294	ENDDO
	1295
	1296	!-- Linear interpolate to zw grid
	1297	DO k = nzb+2, nzt+8
	1298	rrtm_tlev(0,k) = rrtm_tlay(0,k-1) + (rrtm_tlay(0,k) - &
	1299	rrtm_tlay(0,k-1)) &
	1300	/ ( rrtm_play(0,k) - rrtm_play(0,k-1) ) &
	1301	* ( rrtm_plev(0,k) - rrtm_play(0,k-1) )
	1302	ENDDO
	1303
	1304
	1305	!
	1306	!-- Calculate liquid water path and cloud fraction for each column.
	1307	!-- Note that LWP is required in g/mÂ² instead of kg/kg m.
	1308	rrtm_cldfr = 0.0_wp
	1309	rrtm_reliq = 0.0_wp
	1310	rrtm_cliqwp = 0.0_wp
[1691]	1311	rrtm_icld = 0
[1585]	1312
	1313	DO k = nzb+1, nzt+1
[1691]	1314	rrtm_cliqwp(0,k) = ql(k,j,i) * 1000.0_wp * &
	1315	(rrtm_plev(0,k) - rrtm_plev(0,k+1)) &
	1316	* 100.0_wp / g
[1585]	1317
[1691]	1318	IF ( rrtm_cliqwp(0,k) > 0.0_wp ) THEN
[1585]	1319	rrtm_cldfr(0,k) = 1.0_wp
[1691]	1320	IF ( rrtm_icld == 0 ) rrtm_icld = 1
[1585]	1321
	1322	!
	1323	!-- Calculate cloud droplet effective radius
	1324	IF ( cloud_physics ) THEN
[1691]	1325	rrtm_reliq(0,k) = 1.0E6_wp * ( 3.0_wp * ql(k,j,i) &
	1326	* rho_surface &
	1327	/ ( 4.0_wp * pi * nc_const * rho_l ) &
	1328	)**0.33333333333333_wp &
	1329	* EXP( LOG( sigma_gc )**2 )
[1585]	1330
	1331	ELSEIF ( cloud_droplets ) THEN
	1332	number_of_particles = prt_count(k,j,i)
	1333
	1334	IF (number_of_particles <= 0) CYCLE
	1335	particles => grid_particles(k,j,i)%particles(1:number_of_particles)
	1336	s_r2 = 0.0_wp
	1337	s_r3 = 0.0_wp
	1338
	1339	DO n = 1, number_of_particles
	1340	IF ( particles(n)%particle_mask ) THEN
	1341	s_r2 = s_r2 + particles(n)%radius*2 &
	1342	particles(n)%weight_factor
	1343	s_r3 = s_r3 + particles(n)%radius*3 &
	1344	particles(n)%weight_factor
	1345	ENDIF
	1346	ENDDO
	1347
	1348	IF ( s_r2 > 0.0_wp ) rrtm_reliq(0,k) = s_r3 / s_r2
	1349
	1350	ENDIF
	1351
	1352	!
	1353	!-- Limit effective radius
[1691]	1354	IF ( rrtm_reliq(0,k) > 0.0_wp ) THEN
[1585]	1355	rrtm_reliq(0,k) = MAX(rrtm_reliq(0,k),2.5_wp)
	1356	rrtm_reliq(0,k) = MIN(rrtm_reliq(0,k),60.0_wp)
	1357	ENDIF
	1358	ENDIF
	1359	ENDDO
	1360
	1361	!
	1362	!-- Set surface temperature
	1363	rrtm_tsfc = pt(nzb,j,i) * (surface_pressure / 1000.0_wp )**0.286_wp
	1364
	1365	IF ( lw_radiation ) THEN
	1366	CALL rrtmg_lw( 1, nzt_rad , rrtm_icld , rrtm_idrv ,&
	1367	rrtm_play , rrtm_plev , rrtm_tlay , rrtm_tlev ,&
	1368	rrtm_tsfc , rrtm_h2ovmr , rrtm_o3vmr , rrtm_co2vmr ,&
	1369	rrtm_ch4vmr , rrtm_n2ovmr , rrtm_o2vmr , rrtm_cfc11vmr ,&
	1370	rrtm_cfc12vmr , rrtm_cfc22vmr, rrtm_ccl4vmr , rrtm_emis ,&
	1371	rrtm_inflglw , rrtm_iceflglw, rrtm_liqflglw, rrtm_cldfr ,&
	1372	rrtm_lw_taucld , rrtm_cicewp , rrtm_cliqwp , rrtm_reice ,&
	1373	rrtm_reliq , rrtm_lw_tauaer, &
	1374	rrtm_lwuflx , rrtm_lwdflx , rrtm_lwhr , &
[1691]	1375	rrtm_lwuflxc , rrtm_lwdflxc , rrtm_lwhrc , &
	1376	rrtm_lwuflx_dt , rrtm_lwuflxc_dt )
[1585]	1377
[1691]	1378	!
	1379	!-- Save fluxes
[1585]	1380	DO k = nzb, nzt+1
	1381	rad_lw_in(k,j,i) = rrtm_lwdflx(0,k)
	1382	rad_lw_out(k,j,i) = rrtm_lwuflx(0,k)
	1383	ENDDO
	1384
[1691]	1385	!
	1386	!-- Save heating rates (convert from K/d to K/h)
	1387	DO k = nzb+1, nzt+1
	1388	rad_lw_hr(k,j,i) = rrtm_lwhr(0,k) * d_hours_day
	1389	rad_lw_cs_hr(k,j,i) = rrtm_lwhrc(0,k) * d_hours_day
	1390	ENDDO
[1585]	1391
[1709]	1392	!
	1393	!-- Save change in LW heating rate
	1394	rad_lw_out_change_0(j,i) = rrtm_lwuflx_dt(0,nzb)
	1395
[1585]	1396	ENDIF
	1397
	1398	IF ( sw_radiation .AND. sun_up ) THEN
	1399	CALL rrtmg_sw( 1, nzt_rad , rrtm_icld , rrtm_iaer ,&
	1400	rrtm_play , rrtm_plev , rrtm_tlay , rrtm_tlev ,&
	1401	rrtm_tsfc , rrtm_h2ovmr , rrtm_o3vmr , rrtm_co2vmr ,&
	1402	rrtm_ch4vmr , rrtm_n2ovmr , rrtm_o2vmr , rrtm_asdir(:,j,i),&
	1403	rrtm_asdif(:,j,i), rrtm_aldir(:,j,i), rrtm_aldif(:,j,i), zenith,&
	1404	0.0_wp , day , solar_constant, rrtm_inflgsw,&
	1405	rrtm_iceflgsw , rrtm_liqflgsw, rrtm_cldfr , rrtm_sw_taucld ,&
	1406	rrtm_sw_ssacld , rrtm_sw_asmcld, rrtm_sw_fsfcld, rrtm_cicewp ,&
	1407	rrtm_cliqwp , rrtm_reice , rrtm_reliq , rrtm_sw_tauaer ,&
	1408	rrtm_sw_ssaaer , rrtm_sw_asmaer , rrtm_sw_ecaer , &
	1409	rrtm_swuflx , rrtm_swdflx , rrtm_swhr , &
	1410	rrtm_swuflxc , rrtm_swdflxc , rrtm_swhrc )
	1411
[1691]	1412	!
	1413	!-- Save fluxes
[1585]	1414	DO k = nzb, nzt+1
	1415	rad_sw_in(k,j,i) = rrtm_swdflx(0,k)
	1416	rad_sw_out(k,j,i) = rrtm_swuflx(0,k)
	1417	ENDDO
[1691]	1418
	1419	!
	1420	!-- Save heating rates (convert from K/d to K/s)
	1421	DO k = nzb+1, nzt+1
	1422	rad_sw_hr(k,j,i) = rrtm_swhr(0,k) * d_hours_day
	1423	rad_sw_cs_hr(k,j,i) = rrtm_swhrc(0,k) * d_hours_day
	1424	ENDDO
	1425
[1585]	1426	ENDIF
	1427
	1428	!
	1429	!-- Calculate surface net radiation
	1430	rad_net(j,i) = rad_sw_in(nzb,j,i) - rad_sw_out(nzb,j,i) &
	1431	+ rad_lw_in(nzb,j,i) - rad_lw_out(nzb,j,i)
	1432
	1433	ENDDO
	1434	ENDDO
	1435
	1436	CALL exchange_horiz( rad_lw_in, nbgp )
	1437	CALL exchange_horiz( rad_lw_out, nbgp )
[1691]	1438	CALL exchange_horiz( rad_lw_hr, nbgp )
	1439	CALL exchange_horiz( rad_lw_cs_hr, nbgp )
	1440
[1585]	1441	CALL exchange_horiz( rad_sw_in, nbgp )
	1442	CALL exchange_horiz( rad_sw_out, nbgp )
[1691]	1443	CALL exchange_horiz( rad_sw_hr, nbgp )
	1444	CALL exchange_horiz( rad_sw_cs_hr, nbgp )
	1445
[1585]	1446	CALL exchange_horiz_2d( rad_net, nbgp )
[1709]	1447	CALL exchange_horiz_2d( rad_lw_out_change_0, nbgp )
[1585]	1448	#endif
	1449
	1450	END SUBROUTINE radiation_rrtmg
	1451
	1452
	1453	!------------------------------------------------------------------------------!
	1454	! Description:
	1455	! ------------
[1682]	1456	!> Calculate the cosine of the zenith angle (variable is called zenith)
[1585]	1457	!------------------------------------------------------------------------------!
	1458	SUBROUTINE calc_zenith
	1459
	1460	IMPLICIT NONE
	1461
[1682]	1462	REAL(wp) :: declination, & !< solar declination angle
	1463	hour_angle !< solar hour angle
[1585]	1464	!
[1496]	1465	!-- Calculate current day and time based on the initial values and simulation
	1466	!-- time
[1585]	1467	day = day_init + INT(FLOOR( (time_utc_init + time_since_reference_point) &
	1468	/ 86400.0_wp ), KIND=iwp)
[1496]	1469	time_utc = MOD((time_utc_init + time_since_reference_point), 86400.0_wp)
	1470
	1471
	1472	!
	1473	!-- Calculate solar declination and hour angle
[1585]	1474	declination = ASIN( decl_1 * SIN(decl_2 * REAL(day, KIND=wp) - decl_3) )
[1496]	1475	hour_angle = 2.0_wp * pi * (time_utc / 86400.0_wp) + lon - pi
	1476
	1477	!
	1478	!-- Calculate zenith angle
[1585]	1479	zenith(0) = SIN(lat) * SIN(declination) + COS(lat) * COS(declination) &
[1496]	1480	* COS(hour_angle)
[1585]	1481	zenith(0) = MAX(0.0_wp,zenith(0))
[1496]	1482
	1483	!
[1585]	1484	!-- Check if the sun is up (otheriwse shortwave calculations can be skipped)
[1691]	1485	IF ( zenith(0) > 0.0_wp ) THEN
[1585]	1486	sun_up = .TRUE.
	1487	ELSE
	1488	sun_up = .FALSE.
	1489	END IF
[1496]	1490
[1585]	1491	END SUBROUTINE calc_zenith
	1492
[1606]	1493	#if defined ( __rrtmg ) && defined ( __netcdf )
[1585]	1494	!------------------------------------------------------------------------------!
	1495	! Description:
	1496	! ------------
[1682]	1497	!> Calculates surface albedo components based on Briegleb (1992) and
	1498	!> Briegleb et al. (1986)
[1585]	1499	!------------------------------------------------------------------------------!
	1500	SUBROUTINE calc_albedo
	1501
	1502	IMPLICIT NONE
	1503
	1504	IF ( sun_up ) THEN
[1496]	1505	!
[1585]	1506	!-- Ocean
	1507	IF ( albedo_type == 1 ) THEN
	1508	rrtm_aldir(0,:,:) = 0.026_wp / ( zenith(0)**1.7_wp + 0.065_wp ) &
	1509	+ 0.15_wp * ( zenith(0) - 0.1_wp ) &
	1510	* ( zenith(0) - 0.5_wp ) &
	1511	* ( zenith(0) - 1.0_wp )
	1512	rrtm_asdir(0,:,:) = rrtm_aldir(0,:,:)
	1513	!
	1514	!-- Snow
	1515	ELSEIF ( albedo_type == 16 ) THEN
	1516	IF ( zenith(0) < 0.5_wp ) THEN
	1517	rrtm_aldir(0,:,:) = 0.5_wp * (1.0_wp - aldif) &
	1518	* ( 3.0_wp / (1.0_wp + 4.0_wp &
	1519	* zenith(0))) - 1.0_wp
	1520	rrtm_asdir(0,:,:) = 0.5_wp * (1.0_wp - asdif) &
	1521	* ( 3.0_wp / (1.0_wp + 4.0_wp &
	1522	* zenith(0))) - 1.0_wp
[1496]	1523
[1585]	1524	rrtm_aldir(0,:,:) = MIN(0.98_wp, rrtm_aldir(0,:,:))
	1525	rrtm_asdir(0,:,:) = MIN(0.98_wp, rrtm_asdir(0,:,:))
	1526	ELSE
	1527	rrtm_aldir(0,:,:) = aldif
	1528	rrtm_asdir(0,:,:) = asdif
	1529	ENDIF
[1496]	1530	!
[1585]	1531	!-- Sea ice
	1532	ELSEIF ( albedo_type == 15 ) THEN
	1533	rrtm_aldir(0,:,:) = aldif
	1534	rrtm_asdir(0,:,:) = asdif
[1788]	1535
[1585]	1536	!
[1788]	1537	!-- Asphalt
	1538	ELSEIF ( albedo_type == 17 ) THEN
	1539	rrtm_aldir(0,:,:) = aldif
	1540	rrtm_asdir(0,:,:) = asdif
	1541	!
[1585]	1542	!-- Land surfaces
	1543	ELSE
	1544	SELECT CASE ( albedo_type )
[1496]	1545
[1585]	1546	!
	1547	!-- Surface types with strong zenith dependence
	1548	CASE ( 1, 2, 3, 4, 11, 12, 13 )
	1549	rrtm_aldir(0,:,:) = aldif * 1.4_wp / &
	1550	(1.0_wp + 0.8_wp * zenith(0))
	1551	rrtm_asdir(0,:,:) = asdif * 1.4_wp / &
	1552	(1.0_wp + 0.8_wp * zenith(0))
	1553	!
	1554	!-- Surface types with weak zenith dependence
	1555	CASE ( 5, 6, 7, 8, 9, 10, 14 )
	1556	rrtm_aldir(0,:,:) = aldif * 1.1_wp / &
	1557	(1.0_wp + 0.2_wp * zenith(0))
	1558	rrtm_asdir(0,:,:) = asdif * 1.1_wp / &
	1559	(1.0_wp + 0.2_wp * zenith(0))
[1496]	1560
[1585]	1561	CASE DEFAULT
	1562
	1563	END SELECT
	1564	ENDIF
	1565	!
	1566	!-- Diffusive albedo is taken from Table 2
	1567	rrtm_aldif(0,:,:) = aldif
	1568	rrtm_asdif(0,:,:) = asdif
	1569
	1570	ELSE
	1571
	1572	rrtm_aldir(0,:,:) = 0.0_wp
	1573	rrtm_asdir(0,:,:) = 0.0_wp
	1574	rrtm_aldif(0,:,:) = 0.0_wp
	1575	rrtm_asdif(0,:,:) = 0.0_wp
	1576	ENDIF
	1577	END SUBROUTINE calc_albedo
	1578
	1579	!------------------------------------------------------------------------------!
	1580	! Description:
	1581	! ------------
[1682]	1582	!> Read sounding data (pressure and temperature) from RADIATION_DATA.
[1585]	1583	!------------------------------------------------------------------------------!
	1584	SUBROUTINE read_sounding_data
	1585
	1586	IMPLICIT NONE
	1587
[1691]	1588	INTEGER(iwp) :: id, & !< NetCDF id of input file
	1589	id_dim_zrad, & !< pressure level id in the NetCDF file
	1590	id_var, & !< NetCDF variable id
	1591	k, & !< loop index
	1592	nz_snd, & !< number of vertical levels in the sounding data
	1593	nz_snd_start, & !< start vertical index for sounding data to be used
	1594	nz_snd_end !< end vertical index for souding data to be used
[1585]	1595
[1691]	1596	REAL(wp) :: t_surface !< actual surface temperature
[1585]	1597
[1691]	1598	REAL(wp), DIMENSION(:), ALLOCATABLE :: hyp_snd_tmp, & !< temporary hydrostatic pressure profile (sounding)
	1599	t_snd_tmp !< temporary temperature profile (sounding)
[1585]	1600
	1601	!
	1602	!-- In case of updates, deallocate arrays first (sufficient to check one
	1603	!-- array as the others are automatically allocated). This is required
	1604	!-- because nzt_rad might change during the update
	1605	IF ( ALLOCATED ( hyp_snd ) ) THEN
	1606	DEALLOCATE( hyp_snd )
	1607	DEALLOCATE( t_snd )
	1608	DEALLOCATE( q_snd )
	1609	DEALLOCATE ( rrtm_play )
	1610	DEALLOCATE ( rrtm_plev )
	1611	DEALLOCATE ( rrtm_tlay )
	1612	DEALLOCATE ( rrtm_tlev )
[1691]	1613
[1585]	1614	DEALLOCATE ( rrtm_h2ovmr )
	1615	DEALLOCATE ( rrtm_cicewp )
	1616	DEALLOCATE ( rrtm_cldfr )
	1617	DEALLOCATE ( rrtm_cliqwp )
	1618	DEALLOCATE ( rrtm_reice )
	1619	DEALLOCATE ( rrtm_reliq )
	1620	DEALLOCATE ( rrtm_lw_taucld )
	1621	DEALLOCATE ( rrtm_lw_tauaer )
[1691]	1622
[1585]	1623	DEALLOCATE ( rrtm_lwdflx )
[1691]	1624	DEALLOCATE ( rrtm_lwdflxc )
[1585]	1625	DEALLOCATE ( rrtm_lwuflx )
[1691]	1626	DEALLOCATE ( rrtm_lwuflxc )
	1627	DEALLOCATE ( rrtm_lwuflx_dt )
	1628	DEALLOCATE ( rrtm_lwuflxc_dt )
[1585]	1629	DEALLOCATE ( rrtm_lwhr )
	1630	DEALLOCATE ( rrtm_lwhrc )
[1691]	1631
[1585]	1632	DEALLOCATE ( rrtm_sw_taucld )
	1633	DEALLOCATE ( rrtm_sw_ssacld )
	1634	DEALLOCATE ( rrtm_sw_asmcld )
	1635	DEALLOCATE ( rrtm_sw_fsfcld )
	1636	DEALLOCATE ( rrtm_sw_tauaer )
	1637	DEALLOCATE ( rrtm_sw_ssaaer )
	1638	DEALLOCATE ( rrtm_sw_asmaer )
[1691]	1639	DEALLOCATE ( rrtm_sw_ecaer )
	1640
[1585]	1641	DEALLOCATE ( rrtm_swdflx )
[1691]	1642	DEALLOCATE ( rrtm_swdflxc )
[1585]	1643	DEALLOCATE ( rrtm_swuflx )
[1691]	1644	DEALLOCATE ( rrtm_swuflxc )
[1585]	1645	DEALLOCATE ( rrtm_swhr )
	1646	DEALLOCATE ( rrtm_swhrc )
[1691]	1647
[1585]	1648	ENDIF
	1649
	1650	!
	1651	!-- Open file for reading
	1652	nc_stat = NF90_OPEN( rrtm_input_file, NF90_NOWRITE, id )
[1783]	1653	CALL netcdf_handle_error_rad( 'read_sounding_data', 549 )
[1585]	1654
	1655	!
	1656	!-- Inquire dimension of z axis and save in nz_snd
	1657	nc_stat = NF90_INQ_DIMID( id, "Pressure", id_dim_zrad )
	1658	nc_stat = NF90_INQUIRE_DIMENSION( id, id_dim_zrad, len = nz_snd )
[1783]	1659	CALL netcdf_handle_error_rad( 'read_sounding_data', 551 )
[1585]	1660
	1661	!
	1662	! !-- Allocate temporary array for storing pressure data
[1701]	1663	ALLOCATE( hyp_snd_tmp(1:nz_snd) )
[1585]	1664	hyp_snd_tmp = 0.0_wp
	1665
	1666
	1667	!-- Read pressure from file
	1668	nc_stat = NF90_INQ_VARID( id, "Pressure", id_var )
[1691]	1669	nc_stat = NF90_GET_VAR( id, id_var, hyp_snd_tmp(:), start = (/1/), &
[1585]	1670	count = (/nz_snd/) )
[1783]	1671	CALL netcdf_handle_error_rad( 'read_sounding_data', 552 )
[1585]	1672
	1673	!
	1674	!-- Allocate temporary array for storing temperature data
[1701]	1675	ALLOCATE( t_snd_tmp(1:nz_snd) )
[1585]	1676	t_snd_tmp = 0.0_wp
	1677
	1678	!
	1679	!-- Read temperature from file
	1680	nc_stat = NF90_INQ_VARID( id, "ReferenceTemperature", id_var )
[1691]	1681	nc_stat = NF90_GET_VAR( id, id_var, t_snd_tmp(:), start = (/1/), &
[1585]	1682	count = (/nz_snd/) )
[1783]	1683	CALL netcdf_handle_error_rad( 'read_sounding_data', 553 )
[1585]	1684
	1685	!
	1686	!-- Calculate start of sounding data
	1687	nz_snd_start = nz_snd + 1
[1701]	1688	nz_snd_end = nz_snd + 1
[1585]	1689
	1690	!
	1691	!-- Start filling vertical dimension at 10hPa above the model domain (hyp is
	1692	!-- in Pa, hyp_snd in hPa).
	1693	DO k = 1, nz_snd
[1691]	1694	IF ( hyp_snd_tmp(k) < ( hyp(nzt+1) - 1000.0_wp) * 0.01_wp ) THEN
[1585]	1695	nz_snd_start = k
	1696	EXIT
	1697	END IF
	1698	END DO
	1699
[1691]	1700	IF ( nz_snd_start <= nz_snd ) THEN
[1701]	1701	nz_snd_end = nz_snd
[1585]	1702	END IF
	1703
	1704
	1705	!
	1706	!-- Calculate of total grid points for RRTMG calculations
[1701]	1707	nzt_rad = nzt + nz_snd_end - nz_snd_start + 1
[1585]	1708
	1709	!
	1710	!-- Save data above LES domain in hyp_snd, t_snd and q_snd
	1711	!-- Note: q_snd_tmp is not calculated at the moment (dry residual atmosphere)
	1712	ALLOCATE( hyp_snd(nzb+1:nzt_rad) )
	1713	ALLOCATE( t_snd(nzb+1:nzt_rad) )
	1714	ALLOCATE( q_snd(nzb+1:nzt_rad) )
	1715	hyp_snd = 0.0_wp
	1716	t_snd = 0.0_wp
	1717	q_snd = 0.0_wp
	1718
[1757]	1719	hyp_snd(nzt+2:nzt_rad) = hyp_snd_tmp(nz_snd_start+1:nz_snd_end)
	1720	t_snd(nzt+2:nzt_rad) = t_snd_tmp(nz_snd_start+1:nz_snd_end)
[1585]	1721
	1722	nc_stat = NF90_CLOSE( id )
	1723
	1724	!
	1725	!-- Calculate pressure levels on zu and zw grid. Sounding data is added at
	1726	!-- top of the LES domain. This routine does not consider horizontal or
	1727	!-- vertical variability of pressure and temperature
	1728	ALLOCATE ( rrtm_play(0:0,nzb+1:nzt_rad+1) )
	1729	ALLOCATE ( rrtm_plev(0:0,nzb+1:nzt_rad+2) )
	1730
[1691]	1731	t_surface = pt_surface * ( surface_pressure / 1000.0_wp )**0.286_wp
[1585]	1732	DO k = nzb+1, nzt+1
	1733	rrtm_play(0,k) = hyp(k) * 0.01_wp
	1734	rrtm_plev(0,k) = surface_pressure * ( (t_surface - g/cp * zw(k-1)) / &
	1735	t_surface )**(1.0_wp/0.286_wp)
	1736	ENDDO
	1737
	1738	DO k = nzt+2, nzt_rad
	1739	rrtm_play(0,k) = hyp_snd(k)
	1740	rrtm_plev(0,k) = 0.5_wp * ( rrtm_play(0,k) + rrtm_play(0,k-1) )
	1741	ENDDO
	1742	rrtm_plev(0,nzt_rad+1) = MAX( 0.5 * hyp_snd(nzt_rad), &
	1743	1.5 * hyp_snd(nzt_rad) &
	1744	- 0.5 * hyp_snd(nzt_rad-1) )
	1745	rrtm_plev(0,nzt_rad+2) = MIN( 1.0E-4_wp, &
	1746	0.25_wp * rrtm_plev(0,nzt_rad+1) )
	1747
	1748	rrtm_play(0,nzt_rad+1) = 0.5 * rrtm_plev(0,nzt_rad+1)
	1749
	1750	!
	1751	!-- Calculate temperature/humidity levels at top of the LES domain.
	1752	!-- Currently, the temperature is taken from sounding data (might lead to a
	1753	!-- temperature jump at interface. To do: Humidity is currently not
	1754	!-- calculated above the LES domain.
	1755	ALLOCATE ( rrtm_tlay(0:0,nzb+1:nzt_rad+1) )
	1756	ALLOCATE ( rrtm_tlev(0:0,nzb+1:nzt_rad+2) )
	1757	ALLOCATE ( rrtm_h2ovmr(0:0,nzb+1:nzt_rad+1) )
	1758
	1759	DO k = nzt+8, nzt_rad
	1760	rrtm_tlay(0,k) = t_snd(k)
	1761	rrtm_h2ovmr(0,k) = q_snd(k)
	1762	ENDDO
[1691]	1763	rrtm_tlay(0,nzt_rad+1) = 2.0_wp * rrtm_tlay(0,nzt_rad) &
	1764	- rrtm_tlay(0,nzt_rad-1)
[1585]	1765	DO k = nzt+9, nzt_rad+1
	1766	rrtm_tlev(0,k) = rrtm_tlay(0,k-1) + (rrtm_tlay(0,k) &
	1767	- rrtm_tlay(0,k-1)) &
	1768	/ ( rrtm_play(0,k) - rrtm_play(0,k-1) ) &
	1769	* ( rrtm_plev(0,k) - rrtm_play(0,k-1) )
	1770	ENDDO
	1771	rrtm_h2ovmr(0,nzt_rad+1) = rrtm_h2ovmr(0,nzt_rad)
	1772
	1773	rrtm_tlev(0,nzt_rad+2) = 2.0_wp * rrtm_tlay(0,nzt_rad+1) &
	1774	- rrtm_tlev(0,nzt_rad)
	1775	!
	1776	!-- Allocate remaining RRTMG arrays
	1777	ALLOCATE ( rrtm_cicewp(0:0,nzb+1:nzt_rad+1) )
	1778	ALLOCATE ( rrtm_cldfr(0:0,nzb+1:nzt_rad+1) )
	1779	ALLOCATE ( rrtm_cliqwp(0:0,nzb+1:nzt_rad+1) )
	1780	ALLOCATE ( rrtm_reice(0:0,nzb+1:nzt_rad+1) )
	1781	ALLOCATE ( rrtm_reliq(0:0,nzb+1:nzt_rad+1) )
	1782	ALLOCATE ( rrtm_lw_taucld(1:nbndlw+1,0:0,nzb+1:nzt_rad+1) )
	1783	ALLOCATE ( rrtm_lw_tauaer(0:0,nzb+1:nzt_rad+1,1:nbndlw+1) )
	1784	ALLOCATE ( rrtm_sw_taucld(1:nbndsw+1,0:0,nzb+1:nzt_rad+1) )
	1785	ALLOCATE ( rrtm_sw_ssacld(1:nbndsw+1,0:0,nzb+1:nzt_rad+1) )
	1786	ALLOCATE ( rrtm_sw_asmcld(1:nbndsw+1,0:0,nzb+1:nzt_rad+1) )
	1787	ALLOCATE ( rrtm_sw_fsfcld(1:nbndsw+1,0:0,nzb+1:nzt_rad+1) )
	1788	ALLOCATE ( rrtm_sw_tauaer(0:0,nzb+1:nzt_rad+1,1:nbndsw+1) )
	1789	ALLOCATE ( rrtm_sw_ssaaer(0:0,nzb+1:nzt_rad+1,1:nbndsw+1) )
	1790	ALLOCATE ( rrtm_sw_asmaer(0:0,nzb+1:nzt_rad+1,1:nbndsw+1) )
	1791	ALLOCATE ( rrtm_sw_ecaer(0:0,nzb+1:nzt_rad+1,1:naerec+1) )
	1792
	1793	!
	1794	!-- The ice phase is currently not considered in PALM
	1795	rrtm_cicewp = 0.0_wp
	1796	rrtm_reice = 0.0_wp
	1797
	1798	!
	1799	!-- Set other parameters (move to NAMELIST parameters in the future)
	1800	rrtm_lw_tauaer = 0.0_wp
	1801	rrtm_lw_taucld = 0.0_wp
	1802	rrtm_sw_taucld = 0.0_wp
	1803	rrtm_sw_ssacld = 0.0_wp
	1804	rrtm_sw_asmcld = 0.0_wp
	1805	rrtm_sw_fsfcld = 0.0_wp
	1806	rrtm_sw_tauaer = 0.0_wp
	1807	rrtm_sw_ssaaer = 0.0_wp
	1808	rrtm_sw_asmaer = 0.0_wp
	1809	rrtm_sw_ecaer = 0.0_wp
	1810
	1811
	1812	ALLOCATE ( rrtm_swdflx(0:0,nzb:nzt_rad+1) )
	1813	ALLOCATE ( rrtm_swuflx(0:0,nzb:nzt_rad+1) )
	1814	ALLOCATE ( rrtm_swhr(0:0,nzb+1:nzt_rad+1) )
	1815	ALLOCATE ( rrtm_swuflxc(0:0,nzb:nzt_rad+1) )
	1816	ALLOCATE ( rrtm_swdflxc(0:0,nzb:nzt_rad+1) )
	1817	ALLOCATE ( rrtm_swhrc(0:0,nzb+1:nzt_rad+1) )
	1818
	1819	rrtm_swdflx = 0.0_wp
	1820	rrtm_swuflx = 0.0_wp
	1821	rrtm_swhr = 0.0_wp
	1822	rrtm_swuflxc = 0.0_wp
	1823	rrtm_swdflxc = 0.0_wp
	1824	rrtm_swhrc = 0.0_wp
	1825
	1826	ALLOCATE ( rrtm_lwdflx(0:0,nzb:nzt_rad+1) )
	1827	ALLOCATE ( rrtm_lwuflx(0:0,nzb:nzt_rad+1) )
	1828	ALLOCATE ( rrtm_lwhr(0:0,nzb+1:nzt_rad+1) )
	1829	ALLOCATE ( rrtm_lwuflxc(0:0,nzb:nzt_rad+1) )
	1830	ALLOCATE ( rrtm_lwdflxc(0:0,nzb:nzt_rad+1) )
	1831	ALLOCATE ( rrtm_lwhrc(0:0,nzb+1:nzt_rad+1) )
	1832
	1833	rrtm_lwdflx = 0.0_wp
	1834	rrtm_lwuflx = 0.0_wp
	1835	rrtm_lwhr = 0.0_wp
	1836	rrtm_lwuflxc = 0.0_wp
	1837	rrtm_lwdflxc = 0.0_wp
	1838	rrtm_lwhrc = 0.0_wp
	1839
[1691]	1840	ALLOCATE ( rrtm_lwuflx_dt(0:0,nzb:nzt_rad+1) )
	1841	ALLOCATE ( rrtm_lwuflxc_dt(0:0,nzb:nzt_rad+1) )
[1585]	1842
[1709]	1843	rrtm_lwuflx_dt = 0.0_wp
[1691]	1844	rrtm_lwuflxc_dt = 0.0_wp
	1845
[1585]	1846	END SUBROUTINE read_sounding_data
	1847
	1848
	1849	!------------------------------------------------------------------------------!
	1850	! Description:
	1851	! ------------
[1682]	1852	!> Read trace gas data from file
[1585]	1853	!------------------------------------------------------------------------------!
	1854	SUBROUTINE read_trace_gas_data
	1855
	1856	USE rrsw_ncpar
	1857
	1858	IMPLICIT NONE
	1859
[1691]	1860	INTEGER(iwp), PARAMETER :: num_trace_gases = 9 !< number of trace gases (absorbers)
[1585]	1861
[1691]	1862	CHARACTER(LEN=5), DIMENSION(num_trace_gases), PARAMETER :: & !< trace gas names
[1585]	1863	trace_names = (/'O3 ', 'CO2 ', 'CH4 ', 'N2O ', 'O2 ', &
	1864	'CFC11', 'CFC12', 'CFC22', 'CCL4 '/)
	1865
[1691]	1866	INTEGER(iwp) :: id, & !< NetCDF id
	1867	k, & !< loop index
	1868	m, & !< loop index
	1869	n, & !< loop index
	1870	nabs, & !< number of absorbers
	1871	np, & !< number of pressure levels
	1872	id_abs, & !< NetCDF id of the respective absorber
	1873	id_dim, & !< NetCDF id of asborber's dimension
	1874	id_var !< NetCDf id ot the absorber
[1585]	1875
	1876	REAL(wp) :: p_mls_l, p_mls_u, p_wgt_l, p_wgt_u, p_mls_m
	1877
	1878
[1682]	1879	REAL(wp), DIMENSION(:), ALLOCATABLE :: p_mls, & !< pressure levels for the absorbers
	1880	rrtm_play_tmp, & !< temporary array for pressure zu-levels
	1881	rrtm_plev_tmp, & !< temporary array for pressure zw-levels
	1882	trace_path_tmp !< temporary array for storing trace gas path data
[1585]	1883
[1682]	1884	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: trace_mls, & !< array for storing the absorber amounts
	1885	trace_mls_path, & !< array for storing trace gas path data
	1886	trace_mls_tmp !< temporary array for storing trace gas data
[1585]	1887
	1888
	1889	!
	1890	!-- In case of updates, deallocate arrays first (sufficient to check one
	1891	!-- array as the others are automatically allocated)
	1892	IF ( ALLOCATED ( rrtm_o3vmr ) ) THEN
	1893	DEALLOCATE ( rrtm_o3vmr )
	1894	DEALLOCATE ( rrtm_co2vmr )
	1895	DEALLOCATE ( rrtm_ch4vmr )
	1896	DEALLOCATE ( rrtm_n2ovmr )
	1897	DEALLOCATE ( rrtm_o2vmr )
	1898	DEALLOCATE ( rrtm_cfc11vmr )
	1899	DEALLOCATE ( rrtm_cfc12vmr )
	1900	DEALLOCATE ( rrtm_cfc22vmr )
	1901	DEALLOCATE ( rrtm_ccl4vmr )
	1902	ENDIF
	1903
	1904	!
	1905	!-- Allocate trace gas profiles
	1906	ALLOCATE ( rrtm_o3vmr(0:0,1:nzt_rad+1) )
	1907	ALLOCATE ( rrtm_co2vmr(0:0,1:nzt_rad+1) )
	1908	ALLOCATE ( rrtm_ch4vmr(0:0,1:nzt_rad+1) )
	1909	ALLOCATE ( rrtm_n2ovmr(0:0,1:nzt_rad+1) )
	1910	ALLOCATE ( rrtm_o2vmr(0:0,1:nzt_rad+1) )
	1911	ALLOCATE ( rrtm_cfc11vmr(0:0,1:nzt_rad+1) )
	1912	ALLOCATE ( rrtm_cfc12vmr(0:0,1:nzt_rad+1) )
	1913	ALLOCATE ( rrtm_cfc22vmr(0:0,1:nzt_rad+1) )
	1914	ALLOCATE ( rrtm_ccl4vmr(0:0,1:nzt_rad+1) )
	1915
	1916	!
	1917	!-- Open file for reading
	1918	nc_stat = NF90_OPEN( rrtm_input_file, NF90_NOWRITE, id )
[1783]	1919	CALL netcdf_handle_error_rad( 'read_trace_gas_data', 549 )
[1585]	1920	!
	1921	!-- Inquire dimension ids and dimensions
	1922	nc_stat = NF90_INQ_DIMID( id, "Pressure", id_dim )
[1783]	1923	CALL netcdf_handle_error_rad( 'read_trace_gas_data', 550 )
[1585]	1924	nc_stat = NF90_INQUIRE_DIMENSION( id, id_dim, len = np)
[1783]	1925	CALL netcdf_handle_error_rad( 'read_trace_gas_data', 550 )
[1585]	1926
	1927	nc_stat = NF90_INQ_DIMID( id, "Absorber", id_dim )
[1783]	1928	CALL netcdf_handle_error_rad( 'read_trace_gas_data', 550 )
[1585]	1929	nc_stat = NF90_INQUIRE_DIMENSION( id, id_dim, len = nabs )
[1783]	1930	CALL netcdf_handle_error_rad( 'read_trace_gas_data', 550 )
[1585]	1931
	1932
	1933	!
	1934	!-- Allocate pressure, and trace gas arrays
	1935	ALLOCATE( p_mls(1:np) )
	1936	ALLOCATE( trace_mls(1:num_trace_gases,1:np) )
	1937	ALLOCATE( trace_mls_tmp(1:nabs,1:np) )
	1938
	1939
	1940	nc_stat = NF90_INQ_VARID( id, "Pressure", id_var )
[1783]	1941	CALL netcdf_handle_error_rad( 'read_trace_gas_data', 550 )
[1585]	1942	nc_stat = NF90_GET_VAR( id, id_var, p_mls )
[1783]	1943	CALL netcdf_handle_error_rad( 'read_trace_gas_data', 550 )
[1585]	1944
	1945	nc_stat = NF90_INQ_VARID( id, "AbsorberAmountMLS", id_var )
[1783]	1946	CALL netcdf_handle_error_rad( 'read_trace_gas_data', 550 )
[1585]	1947	nc_stat = NF90_GET_VAR( id, id_var, trace_mls_tmp )
[1783]	1948	CALL netcdf_handle_error_rad( 'read_trace_gas_data', 550 )
[1585]	1949
	1950
	1951	!
	1952	!-- Write absorber amounts (mls) to trace_mls
	1953	DO n = 1, num_trace_gases
	1954	CALL getAbsorberIndex( TRIM( trace_names(n) ), id_abs )
	1955
	1956	trace_mls(n,1:np) = trace_mls_tmp(id_abs,1:np)
	1957
	1958	!
	1959	!-- Replace missing values by zero
	1960	WHERE ( trace_mls(n,:) > 2.0_wp )
	1961	trace_mls(n,:) = 0.0_wp
	1962	END WHERE
	1963	END DO
	1964
	1965	DEALLOCATE ( trace_mls_tmp )
	1966
	1967	nc_stat = NF90_CLOSE( id )
[1783]	1968	CALL netcdf_handle_error_rad( 'read_trace_gas_data', 551 )
[1585]	1969
	1970	!
	1971	!-- Add extra pressure level for calculations of the trace gas paths
	1972	ALLOCATE ( rrtm_play_tmp(1:nzt_rad+1) )
	1973	ALLOCATE ( rrtm_plev_tmp(1:nzt_rad+2) )
	1974
	1975	rrtm_play_tmp(1:nzt_rad) = rrtm_play(0,1:nzt_rad)
	1976	rrtm_plev_tmp(1:nzt_rad+1) = rrtm_plev(0,1:nzt_rad+1)
	1977	rrtm_play_tmp(nzt_rad+1) = rrtm_plev(0,nzt_rad+1) * 0.5_wp
	1978	rrtm_plev_tmp(nzt_rad+2) = MIN( 1.0E-4_wp, 0.25_wp &
	1979	* rrtm_plev(0,nzt_rad+1) )
	1980
	1981	!
	1982	!-- Calculate trace gas path (zero at surface) with interpolation to the
	1983	!-- sounding levels
	1984	ALLOCATE ( trace_mls_path(1:nzt_rad+2,1:num_trace_gases) )
	1985
	1986	trace_mls_path(nzb+1,:) = 0.0_wp
	1987
	1988	DO k = nzb+2, nzt_rad+2
	1989	DO m = 1, num_trace_gases
	1990	trace_mls_path(k,m) = trace_mls_path(k-1,m)
	1991
	1992	!
	1993	!-- When the pressure level is higher than the trace gas pressure
	1994	!-- level, assume that
[1691]	1995	IF ( rrtm_plev_tmp(k-1) > p_mls(1) ) THEN
[1585]	1996
	1997	trace_mls_path(k,m) = trace_mls_path(k,m) + trace_mls(m,1) &
	1998	* ( rrtm_plev_tmp(k-1) &
	1999	- MAX( p_mls(1), rrtm_plev_tmp(k) ) &
	2000	) / g
	2001	ENDIF
	2002
	2003	!
	2004	!-- Integrate for each sounding level from the contributing p_mls
	2005	!-- levels
	2006	DO n = 2, np
	2007	!
	2008	!-- Limit p_mls so that it is within the model level
	2009	p_mls_u = MIN( rrtm_plev_tmp(k-1), &
	2010	MAX( rrtm_plev_tmp(k), p_mls(n) ) )
	2011	p_mls_l = MIN( rrtm_plev_tmp(k-1), &
	2012	MAX( rrtm_plev_tmp(k), p_mls(n-1) ) )
	2013
[1691]	2014	IF ( p_mls_l > p_mls_u ) THEN
[1585]	2015
	2016	!
	2017	!-- Calculate weights for interpolation
	2018	p_mls_m = 0.5_wp * (p_mls_l + p_mls_u)
	2019	p_wgt_u = (p_mls(n-1) - p_mls_m) / (p_mls(n-1) - p_mls(n))
	2020	p_wgt_l = (p_mls_m - p_mls(n)) / (p_mls(n-1) - p_mls(n))
	2021
	2022	!
	2023	!-- Add level to trace gas path
	2024	trace_mls_path(k,m) = trace_mls_path(k,m) &
	2025	+ ( p_wgt_u * trace_mls(m,n) &
	2026	+ p_wgt_l * trace_mls(m,n-1) ) &
[1691]	2027	* (p_mls_l - p_mls_u) / g
[1585]	2028	ENDIF
	2029	ENDDO
	2030
[1691]	2031	IF ( rrtm_plev_tmp(k) < p_mls(np) ) THEN
[1585]	2032	trace_mls_path(k,m) = trace_mls_path(k,m) + trace_mls(m,np) &
	2033	* ( MIN( rrtm_plev_tmp(k-1), p_mls(np) ) &
	2034	- rrtm_plev_tmp(k) &
	2035	) / g
	2036	ENDIF
[1496]	2037	ENDDO
	2038	ENDDO
	2039
	2040
[1585]	2041	!
	2042	!-- Prepare trace gas path profiles
	2043	ALLOCATE ( trace_path_tmp(1:nzt_rad+1) )
[1496]	2044
[1585]	2045	DO m = 1, num_trace_gases
	2046
	2047	trace_path_tmp(1:nzt_rad+1) = ( trace_mls_path(2:nzt_rad+2,m) &
	2048	- trace_mls_path(1:nzt_rad+1,m) ) * g &
	2049	/ ( rrtm_plev_tmp(1:nzt_rad+1) &
	2050	- rrtm_plev_tmp(2:nzt_rad+2) )
	2051
	2052	!
	2053	!-- Save trace gas paths to the respective arrays
	2054	SELECT CASE ( TRIM( trace_names(m) ) )
	2055
	2056	CASE ( 'O3' )
	2057
	2058	rrtm_o3vmr(0,:) = trace_path_tmp(:)
	2059
	2060	CASE ( 'CO2' )
	2061
	2062	rrtm_co2vmr(0,:) = trace_path_tmp(:)
	2063
	2064	CASE ( 'CH4' )
	2065
	2066	rrtm_ch4vmr(0,:) = trace_path_tmp(:)
	2067
	2068	CASE ( 'N2O' )
	2069
	2070	rrtm_n2ovmr(0,:) = trace_path_tmp(:)
	2071
	2072	CASE ( 'O2' )
	2073
	2074	rrtm_o2vmr(0,:) = trace_path_tmp(:)
	2075
	2076	CASE ( 'CFC11' )
	2077
	2078	rrtm_cfc11vmr(0,:) = trace_path_tmp(:)
	2079
	2080	CASE ( 'CFC12' )
	2081
	2082	rrtm_cfc12vmr(0,:) = trace_path_tmp(:)
	2083
	2084	CASE ( 'CFC22' )
	2085
	2086	rrtm_cfc22vmr(0,:) = trace_path_tmp(:)
	2087
	2088	CASE ( 'CCL4' )
	2089
	2090	rrtm_ccl4vmr(0,:) = trace_path_tmp(:)
	2091
	2092	CASE DEFAULT
	2093
	2094	END SELECT
	2095
	2096	ENDDO
	2097
	2098	DEALLOCATE ( trace_path_tmp )
	2099	DEALLOCATE ( trace_mls_path )
	2100	DEALLOCATE ( rrtm_play_tmp )
	2101	DEALLOCATE ( rrtm_plev_tmp )
	2102	DEALLOCATE ( trace_mls )
	2103	DEALLOCATE ( p_mls )
	2104
	2105	END SUBROUTINE read_trace_gas_data
	2106
[1826]	2107
[1783]	2108	SUBROUTINE netcdf_handle_error_rad( routine_name, errno )
	2109
	2110	USE control_parameters, &
	2111	ONLY: message_string
	2112
	2113	USE NETCDF
	2114
	2115	USE pegrid
	2116
	2117	IMPLICIT NONE
	2118
	2119	CHARACTER(LEN=6) :: message_identifier
	2120	CHARACTER(LEN=*) :: routine_name
	2121
	2122	INTEGER(iwp) :: errno
	2123
	2124	IF ( nc_stat /= NF90_NOERR ) THEN
	2125
	2126	WRITE( message_identifier, '(''NC'',I4.4)' ) errno
	2127	message_string = TRIM( NF90_STRERROR( nc_stat ) )
	2128
	2129	CALL message( routine_name, message_identifier, 2, 2, 0, 6, 1 )
	2130
	2131	ENDIF
	2132
	2133	END SUBROUTINE netcdf_handle_error_rad
[1585]	2134	#endif
	2135
	2136
[1551]	2137	!------------------------------------------------------------------------------!
	2138	! Description:
	2139	! ------------
[1682]	2140	!> Calculate temperature tendency due to radiative cooling/heating.
	2141	!> Cache-optimized version.
[1551]	2142	!------------------------------------------------------------------------------!
[1585]	2143	SUBROUTINE radiation_tendency_ij ( i, j, tend )
[1496]	2144
[1585]	2145	USE cloud_parameters, &
[1691]	2146	ONLY: pt_d_t
[1551]	2147
[1585]	2148	IMPLICIT NONE
	2149
[1691]	2150	INTEGER(iwp) :: i, j, k !< loop indices
[1585]	2151
[1691]	2152	REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: tend !< pt tendency term
[1585]	2153
	2154	#if defined ( __rrtmg )
	2155	!
[1691]	2156	!-- Calculate tendency based on heating rate
[1585]	2157	DO k = nzb+1, nzt+1
[1691]	2158	tend(k,j,i) = tend(k,j,i) + (rad_lw_hr(k,j,i) + rad_sw_hr(k,j,i)) &
	2159	* pt_d_t(k) * d_seconds_hour
[1585]	2160	ENDDO
	2161
	2162	#endif
	2163
	2164	END SUBROUTINE radiation_tendency_ij
	2165
	2166
[1551]	2167	!------------------------------------------------------------------------------!
	2168	! Description:
	2169	! ------------
[1682]	2170	!> Calculate temperature tendency due to radiative cooling/heating.
	2171	!> Vector-optimized version
[1551]	2172	!------------------------------------------------------------------------------!
[1585]	2173	SUBROUTINE radiation_tendency ( tend )
[1551]	2174
[1585]	2175	USE cloud_parameters, &
[1691]	2176	ONLY: pt_d_t
[1551]	2177
[1585]	2178	USE indices, &
	2179	ONLY: nxl, nxr, nyn, nys
	2180
	2181	IMPLICIT NONE
	2182
[1691]	2183	INTEGER(iwp) :: i, j, k !< loop indices
[1585]	2184
[1691]	2185	REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: tend !< pt tendency term
[1585]	2186
	2187	#if defined ( __rrtmg )
[1691]	2188	!
	2189	!-- Calculate tendency based on heating rate
[1585]	2190	DO i = nxl, nxr
	2191	DO j = nys, nyn
	2192	DO k = nzb+1, nzt+1
[1691]	2193	tend(k,j,i) = tend(k,j,i) + ( rad_lw_hr(k,j,i) &
	2194	+ rad_sw_hr(k,j,i) ) * pt_d_t(k) &
	2195	* d_seconds_hour
[1585]	2196	ENDDO
	2197	ENDDO
	2198	ENDDO
	2199	#endif
	2200
	2201	END SUBROUTINE radiation_tendency
	2202
[1496]	2203	END MODULE radiation_model_mod

Note: See TracBrowser for help on using the repository browser.

Download in other formats:

| Impressum | ©Leibniz Universität Hannover |