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source: palm/trunk/SOURCE/init_masks.f90 @ 3581

Last change on this file since 3581 was 3554, checked in by gronemeier, 6 years ago
renamed variable if to ivar; add variable description
Property svn:keywords set to `Id`
File size: 34.8 KB

Rev	Line
[1682]	1	!> @file init_masks.f90
[2000]	2	!------------------------------------------------------------------------------!
[2696]	3	! This file is part of the PALM model system.
[1036]	4	!
[2000]	5	! PALM is free software: you can redistribute it and/or modify it under the
	6	! terms of the GNU General Public License as published by the Free Software
	7	! Foundation, either version 3 of the License, or (at your option) any later
	8	! version.
[1036]	9	!
	10	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
	11	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
	12	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
	13	!
	14	! You should have received a copy of the GNU General Public License along with
	15	! PALM. If not, see <http://www.gnu.org/licenses/>.
	16	!
[2718]	17	! Copyright 1997-2018 Leibniz Universitaet Hannover
[2000]	18	!------------------------------------------------------------------------------!
[1036]	19	!
[484]	20	! Current revisions:
[298]	21	! -----------------
[1805]	22	!
[3049]	23	!
[1321]	24	! Former revisions:
	25	! -----------------
	26	! $Id: init_masks.f90 3554 2018-11-22 11:24:52Z schwenkel $
[3554]	27	! add variable description
	28	!
	29	! 3512 2018-11-09 18:09:51Z gronemeier
[3512]	30	! Bugfix: do not output ghost points if mask_x/y_loop is not specified
	31	!
	32	! 3467 2018-10-30 19:05:21Z suehring
[3467]	33	! Implementation of a new aerosol module salsa.
	34	!
	35	! 3435 2018-10-26 18:25:44Z gronemeier
[3435]	36	! Add checks for chemistry and radiation model
	37	! Set indices for terrain-following masked output
	38	!
	39	! 3421 2018-10-24 18:39:32Z gronemeier
[3421]	40	! Renamed output variables
	41	!
	42	! 3419 2018-10-24 17:27:31Z gronemeier
[3294]	43	! ocean renamed ocean_mode
	44	!
	45	! 3274 2018-09-24 15:42:55Z knoop
[3274]	46	! Modularization of all bulk cloud physics code components
	47	!
	48	! 3065 2018-06-12 07:03:02Z Giersch
[3065]	49	! dz_stretch_level was replaced by dz_stretch_level_start
	50	!
	51	! 3049 2018-05-29 13:52:36Z Giersch
[3045]	52	! Error messages revised
	53	!
[3049]	54	! 3045 2018-05-28 07:55:41Z Giersch
	55	! Error messages revised
	56	!
[3045]	57	! 2718 2018-01-02 08:49:38Z maronga
[2716]	58	! Corrected "Former revisions" section
	59	!
	60	! 2696 2017-12-14 17:12:51Z kanani
	61	! Change in file header (GPL part)
	62	!
	63	! 2344 2017-08-09 11:00:34Z raasch
[2344]	64	! explicit setting of initial values for array domask required due to a bug
	65	! in the Cray compiler (appears only if option -eD is used)
	66	!
	67	! 2301 2017-06-29 16:41:21Z gronemeier
[2301]	68	! Bugfix: set variable name length to global value
	69	!
	70	!
[2292]	71	! Implementation of new microphysic scheme: cloud_scheme = 'morrison'
	72	! includes two more prognostic equations for cloud drop concentration (nc)
	73	! and cloud water content (qc).
	74	!
	75	! 2271 2017-06-09 12:34:55Z sward
[2271]	76	! Changed error message
	77	!
	78	! 2101 2017-01-05 16:42:31Z suehring
[1321]	79	!
[2032]	80	! 2031 2016-10-21 15:11:58Z knoop
	81	! renamed variable rho to rho_ocean
	82	!
[2001]	83	! 2000 2016-08-20 18:09:15Z knoop
	84	! Forced header and separation lines into 80 columns
	85	!
[1823]	86	! 1822 2016-04-07 07:49:42Z hoffmann
	87	! icloud_scheme replaced by microphysics_*
	88	!
[1805]	89	! 1804 2016-04-05 16:30:18Z maronga
	90	! Removed code for parameter file check (__check)
	91	!
[1784]	92	! 1783 2016-03-06 18:36:17Z raasch
	93	! netcdf module name changed + related changes
	94	!
[1683]	95	! 1682 2015-10-07 23:56:08Z knoop
	96	! Code annotations made doxygen readable
	97	!
[1439]	98	! 1438 2014-07-22 14:14:06Z heinze
	99	! +nr, qc, qr
	100	!
[1415]	101	! 1414 2014-05-31 11:19:48Z gronemeier
	102	! Bugfix: first and last grid points as they appear in 3D volume data can now
	103	! be included to masked data output
	104	!
[1354]	105	! 1353 2014-04-08 15:21:23Z heinze
	106	! REAL constants provided with KIND-attribute
	107	!
[1325]	108	! 1324 2014-03-21 09:13:16Z suehring
	109	! Bugfix: ONLY statement for module netcdf_control removed
	110	!
[1321]	111	! 1320 2014-03-20 08:40:49Z raasch
[1320]	112	! ONLY-attribute added to USE-statements,
	113	! kind-parameters added to all INTEGER and REAL declaration statements,
	114	! kinds are defined in new module kinds,
	115	! revision history before 2012 removed,
	116	! comment fields (!:) to be used for variable explanations added to
	117	! all variable declaration statements
[298]	118	!
[1187]	119	! 1186 2013-06-18 06:22:52Z raasch
	120	! bugfix: 0.0 replaced by zu(nzb) as the lowest default height level for masks,
	121	! because a zero value does not work in case of ocean runs
	122	!
[1037]	123	! 1036 2012-10-22 13:43:42Z raasch
	124	! code put under GPL (PALM 3.9)
	125	!
[1033]	126	! 1032 2012-10-21 13:03:21Z letzel
	127	! mask locations determined based on scalar positions
	128	!
[1035]	129	! 1031 2012-10-19 14:35:30Z raasch
	130	! netCDF4 without parallel file support implemented
	131	!
[997]	132	! 996 2012-09-07 10:41:47Z raasch
	133	! little reformatting
	134	!
[979]	135	! 978 2012-08-09 08:28:32Z fricke
	136	! +z0h*
	137	!
[810]	138	! 809 2012-01-30 13:32:58Z maronga
	139	! Bugfix: replaced .AND. and .NOT. with && and ! in the preprocessor directives
	140	!
[808]	141	! 807 2012-01-25 11:53:51Z maronga
	142	! New cpp directive "__check" implemented which is used by check_namelist_files
	143	!
[449]	144	! 410 2009-12-04 17:05:40Z letzel
	145	! Initial revision
[298]	146	!
[449]	147	!
[298]	148	! Description:
	149	! ------------
[1682]	150	!> Initialize masked data output
[298]	151	!------------------------------------------------------------------------------!
[1682]	152	SUBROUTINE init_masks
[298]	153
[1320]	154	USE arrays_3d, &
	155	ONLY: zu, zw
	156
[3435]	157	USE bulk_cloud_model_mod, &
	158	ONLY: bulk_cloud_model, microphysics_morrison, microphysics_seifert
	159
	160	USE chemistry_model_mod, &
	161	ONLY: chem_check_data_output
	162
[1320]	163	USE control_parameters, &
[3435]	164	ONLY: air_chemistry, &
	165	constant_diffusion, cloud_droplets, &
[1320]	166	data_output_masks, data_output_masks_user, &
[3065]	167	doav, doav_n, domask, domask_no, dz, dz_stretch_level_start, &
	168	humidity, mask, masks, mask_scale, mask_i, &
[1320]	169	mask_i_global, mask_j, mask_j_global, mask_k, mask_k_global, &
[3435]	170	mask_k_over_surface, &
	171	mask_loop, mask_size, mask_size_l, mask_start_l, &
	172	mask_surface, mask_x, &
[1320]	173	mask_x_loop, mask_xyz_dimension, mask_y, mask_y_loop, mask_z, &
	174	mask_z_loop, max_masks, message_string, mid, &
[3294]	175	passive_scalar, ocean_mode, varnamelength
[1320]	176
	177	USE grid_variables, &
	178	ONLY: dx, dy
	179
	180	USE indices, &
	181	ONLY: nx, nxl, nxr, ny, nyn, nys, nz, nzb, nzt
	182
	183	USE kinds
	184
[1783]	185	USE netcdf_interface, &
	186	ONLY: domask_unit, netcdf_data_format
[1320]	187
	188	USE particle_attributes, &
	189	ONLY: particle_advection
	190
[3467]	191	USE pegrid
[298]	192
[3435]	193	USE radiation_model_mod, &
	194	ONLY: radiation, radiation_check_data_output
[3467]	195
	196	USE salsa_mod, &
	197	ONLY: salsa, salsa_check_data_output
[3435]	198
[298]	199	IMPLICIT NONE
	200
[3554]	201	CHARACTER (LEN=varnamelength) :: var !< contains variable name
	202	CHARACTER (LEN=7) :: unit !< contains unit of variable
[1320]	203
[3554]	204	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask !< list of output variables
	205	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask_user !< list of user-specified output variables
[298]	206
[3435]	207	INTEGER(iwp) :: count !< counting masking indices along a dimension
[3554]	208	INTEGER(iwp) :: i !< loop index
	209	INTEGER(iwp) :: ilen !< length of string saved in 'do_mask'
	210	INTEGER(iwp) :: ind(6) !< index limits (lower/upper bounds) of output array
	211	INTEGER(iwp) :: ind_array(1) !< array index
	212	INTEGER(iwp) :: j !< loop index
	213	INTEGER(iwp) :: k !< loop index
[3435]	214	INTEGER(iwp) :: m !< mask index
[3554]	215	INTEGER(iwp) :: n !< loop index
	216	INTEGER(iwp) :: sender !< PE id of sending PE
[1320]	217
[3554]	218	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: tmp_array !< temporary 1D array
[298]	219
[3554]	220	LOGICAL :: found !< true if variable is found
[2344]	221
[298]	222	!
[2344]	223	!-- Initial values are explicitly set here due to a bug in the Cray compiler
	224	!-- in case of assignments of initial values in declaration statements for
	225	!-- arrays with more than 9999 elements (appears with -eD only)
	226	domask = ' '
	227
	228	!
[298]	229	!-- Allocation and initialization
[1414]	230	ALLOCATE( tmp_array( MAX(nx,ny,nz)+2 ) )
[298]	231
[1414]	232	ALLOCATE( mask_i(max_masks,nxr-nxl+2), &
	233	mask_j(max_masks,nyn-nys+2), &
	234	mask_k(max_masks,nzt-nzb+2) )
[298]	235	!
	236	!-- internal mask arrays ("mask,dimension,selection")
	237	ALLOCATE( mask(max_masks,3,mask_xyz_dimension), &
	238	mask_loop(max_masks,3,3) )
[493]	239
[298]	240	!
[3045]	241	!-- Parallel mask output not yet supported. In check_parameters data format
	242	!-- is restricted and is switched back to non-parallel output. Therefore the
	243	!-- following error can not occur at the moment.
[1031]	244	IF ( netcdf_data_format > 4 ) THEN
[3045]	245	message_string = 'netCDF file formats '// &
	246	'5 and 6 (with parallel I/O support)'// &
	247	' are currently not supported.'
[564]	248	CALL message( 'init_masks', 'PA0328', 1, 2, 0, 6, 0 )
[298]	249	ENDIF
[553]	250
[298]	251	!
	252	!-- Store data output parameters for masked data output in few shared arrays
[996]	253	DO mid = 1, masks
[564]	254
[553]	255	do_mask (mid,:) = data_output_masks(mid,:)
	256	do_mask_user(mid,:) = data_output_masks_user(mid,:)
	257	mask (mid,1,:) = mask_x(mid,:)
	258	mask (mid,2,:) = mask_y(mid,:)
	259	mask (mid,3,:) = mask_z(mid,:)
[3435]	260	!
	261	!-- Flag a mask as terrain following
	262	IF ( mask_k_over_surface(mid,1) /= -1_iwp ) THEN
	263	mask_surface(mid) = .TRUE.
	264	ENDIF
	265
[1353]	266	IF ( mask_x_loop(mid,1) == -1.0_wp .AND. mask_x_loop(mid,2) == -1.0_wp&
	267	.AND. mask_x_loop(mid,3) == -1.0_wp ) THEN
	268	mask_loop(mid,1,1:2) = -1.0_wp
	269	mask_loop(mid,1,3) = 0.0_wp
[564]	270	ELSE
	271	mask_loop(mid,1,:) = mask_x_loop(mid,:)
	272	ENDIF
[1353]	273	IF ( mask_y_loop(mid,1) == -1.0_wp .AND. mask_y_loop(mid,2) == -1.0_wp&
	274	.AND. mask_y_loop(mid,3) == -1.0_wp ) THEN
	275	mask_loop(mid,2,1:2) = -1.0_wp
	276	mask_loop(mid,2,3) = 0.0_wp
[564]	277	ELSE
	278	mask_loop(mid,2,:) = mask_y_loop(mid,:)
	279	ENDIF
[1353]	280	IF ( mask_z_loop(mid,1) == -1.0_wp .AND. mask_z_loop(mid,2) == -1.0_wp&
	281	.AND. mask_z_loop(mid,3) == -1.0_wp ) THEN
	282	mask_loop(mid,3,1:2) = -1.0_wp
	283	mask_loop(mid,3,3) = 0.0_wp
[564]	284	ELSE
	285	mask_loop(mid,3,:) = mask_z_loop(mid,:)
	286	ENDIF
	287
[553]	288	ENDDO
	289
[298]	290	mask_i = -1; mask_j = -1; mask_k = -1
[553]	291
[298]	292	!
	293	!-- Global arrays are required by define_netcdf_header.
[1031]	294	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
[1414]	295	ALLOCATE( mask_i_global(max_masks,nx+2), &
	296	mask_j_global(max_masks,ny+2), &
	297	mask_k_global(max_masks,nz+2) )
[298]	298	mask_i_global = -1; mask_j_global = -1; mask_k_global = -1
	299	ENDIF
	300
	301	!
	302	!-- Determine variable names for each mask
	303	DO mid = 1, masks
	304	!
	305	!-- Append user-defined data output variables to the standard data output
	306	IF ( do_mask_user(mid,1) /= ' ' ) THEN
	307	i = 1
	308	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
	309	i = i + 1
	310	ENDDO
	311	j = 1
	312	DO WHILE ( do_mask_user(mid,j) /= ' ' .AND. j <= 100 )
	313	IF ( i > 100 ) THEN
[3045]	314	WRITE ( message_string, * ) 'number of output quantitities ', &
	315	'given by data_output_mask and data_output_mask_user ', &
[298]	316	'exceeds the limit of 100'
[564]	317	CALL message( 'init_masks', 'PA0329', 1, 2, 0, 6, 0 )
[298]	318	ENDIF
	319	do_mask(mid,i) = do_mask_user(mid,j)
	320	i = i + 1
	321	j = j + 1
	322	ENDDO
	323	ENDIF
	324
	325	!
	326	!-- Check and set steering parameters for mask data output and averaging
	327	i = 1
[996]	328	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
[298]	329	!
	330	!-- Check for data averaging
	331	ilen = LEN_TRIM( do_mask(mid,i) )
	332	j = 0 ! no data averaging
	333	IF ( ilen > 3 ) THEN
	334	IF ( do_mask(mid,i)(ilen-2:ilen) == '_av' ) THEN
	335	j = 1 ! data averaging
	336	do_mask(mid,i) = do_mask(mid,i)(1:ilen-3)
	337	ENDIF
	338	ENDIF
	339	var = TRIM( do_mask(mid,i) )
	340	!
	341	!-- Check for allowed value and set units
	342	SELECT CASE ( TRIM( var ) )
	343
	344	CASE ( 'e' )
	345	IF ( constant_diffusion ) THEN
[3045]	346	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[298]	347	'" requires constant_diffusion = .FALSE.'
[564]	348	CALL message( 'init_masks', 'PA0103', 1, 2, 0, 6, 0 )
[298]	349	ENDIF
	350	unit = 'm2/s2'
	351
[3421]	352	CASE ( 'thetal' )
[3274]	353	IF ( .NOT. bulk_cloud_model ) THEN
[3045]	354	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[3274]	355	'" requires bulk_cloud_model = .TRUE.'
[773]	356	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
[771]	357	ENDIF
	358	unit = 'K'
	359
[2292]	360	CASE ( 'nc' )
[3274]	361	IF ( .NOT. bulk_cloud_model ) THEN
[3045]	362	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[3274]	363	'" requires bulk_cloud_model = .TRUE.'
[2292]	364	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
	365	ELSEIF ( .NOT. microphysics_morrison ) THEN
[3045]	366	message_string = 'output of "' // TRIM( var ) // '" ' // &
	367	'requires = morrison'
[2292]	368	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
	369	ENDIF
	370	unit = '1/m3'
	371
[1438]	372	CASE ( 'nr' )
[3274]	373	IF ( .NOT. bulk_cloud_model ) THEN
[3045]	374	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[3274]	375	'" requires bulk_cloud_model = .TRUE.'
[1438]	376	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
[1822]	377	ELSEIF ( .NOT. microphysics_seifert ) THEN
[3045]	378	message_string = 'output of "' // TRIM( var ) // '"' // &
	379	'requires cloud_scheme = seifert_beheng'
[1438]	380	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
	381	ENDIF
	382	unit = '1/m3'
	383
[298]	384	CASE ( 'pc', 'pr' )
	385	IF ( .NOT. particle_advection ) THEN
[3045]	386	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	387	'" requires a "particles_par"-NAMELIST in the ', &
[298]	388	'parameter file (PARIN)'
[564]	389	CALL message( 'init_masks', 'PA0104', 1, 2, 0, 6, 0 )
[298]	390	ENDIF
	391	IF ( TRIM( var ) == 'pc' ) unit = 'number'
	392	IF ( TRIM( var ) == 'pr' ) unit = 'm'
	393
[3421]	394	CASE ( 'q', 'thetav' )
[298]	395	IF ( .NOT. humidity ) THEN
[3045]	396	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[298]	397	'" requires humidity = .TRUE.'
[564]	398	CALL message( 'init_masks', 'PA0105', 1, 2, 0, 6, 0 )
[298]	399	ENDIF
	400	IF ( TRIM( var ) == 'q' ) unit = 'kg/kg'
[3421]	401	IF ( TRIM( var ) == 'thetav' ) unit = 'K'
[298]	402
[1438]	403	CASE ( 'qc' )
[3274]	404	IF ( .NOT. bulk_cloud_model ) THEN
[3045]	405	message_string = 'output of "' // TRIM( var ) // '"' // &
[3274]	406	'requires bulk_cloud_model = .TRUE.'
[1438]	407	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
	408	ENDIF
	409	unit = 'kg/kg'
	410
[298]	411	CASE ( 'ql' )
[3274]	412	IF ( .NOT. ( bulk_cloud_model .OR. cloud_droplets ) ) THEN
[3045]	413	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[3274]	414	'" requires bulk_cloud_model = .TRUE. or ', &
	415	'cloud_droplets = .TRUE.'
[3045]	416	CALL message( 'init_masks', 'PA0106', 1, 2, 0, 6, 0 )
[298]	417	ENDIF
	418	unit = 'kg/kg'
	419
	420	CASE ( 'ql_c', 'ql_v', 'ql_vp' )
	421	IF ( .NOT. cloud_droplets ) THEN
[3045]	422	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[298]	423	'" requires cloud_droplets = .TRUE.'
[564]	424	CALL message( 'init_masks', 'PA0107', 1, 2, 0, 6, 0 )
[298]	425	ENDIF
	426	IF ( TRIM( var ) == 'ql_c' ) unit = 'kg/kg'
	427	IF ( TRIM( var ) == 'ql_v' ) unit = 'm3'
	428	IF ( TRIM( var ) == 'ql_vp' ) unit = 'none'
	429
	430	CASE ( 'qv' )
[3274]	431	IF ( .NOT. bulk_cloud_model ) THEN
[3045]	432	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[3274]	433	'" requires bulk_cloud_model = .TRUE.'
[564]	434	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
[298]	435	ENDIF
	436	unit = 'kg/kg'
	437
[1438]	438	CASE ( 'qr' )
[3274]	439	IF ( .NOT. bulk_cloud_model ) THEN
[3045]	440	message_string = 'output of "' // TRIM( var ) // '" ' // &
[3274]	441	'requires bulk_cloud_model = .TRUE.'
[1438]	442	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
[1822]	443	ELSEIF ( .NOT. microphysics_seifert ) THEN
[3045]	444	message_string = 'output of "' // TRIM( var ) // '" ' // &
	445	'requires cloud_scheme = seifert_beheng'
[1438]	446	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
	447	ENDIF
	448	unit = 'kg/kg'
	449
[3421]	450	CASE ( 'rho_sea_water' )
[3294]	451	IF ( .NOT. ocean_mode ) THEN
[3045]	452	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[3294]	453	'" requires ocean mode'
[564]	454	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
[298]	455	ENDIF
	456	unit = 'kg/m3'
	457
	458	CASE ( 's' )
	459	IF ( .NOT. passive_scalar ) THEN
[3045]	460	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[298]	461	'" requires passive_scalar = .TRUE.'
[564]	462	CALL message( 'init_masks', 'PA0110', 1, 2, 0, 6, 0 )
[298]	463	ENDIF
	464	unit = 'conc'
	465
	466	CASE ( 'sa' )
[3294]	467	IF ( .NOT. ocean_mode ) THEN
[3045]	468	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[3294]	469	'" requires ocean mode'
[564]	470	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
[298]	471	ENDIF
	472	unit = 'psu'
	473
[3421]	474	CASE ( 'us', 't', 'lwp', 'pra', 'prr', 'z0', 'z0h*' )
[3045]	475	WRITE ( message_string, * ) 'illegal value for data_', &
	476	'output: "', TRIM( var ), '" is only allowed', &
[298]	477	'for horizontal cross section'
[564]	478	CALL message( 'init_masks', 'PA0111', 1, 2, 0, 6, 0 )
[298]	479
[3421]	480	CASE ( 'p', 'theta', 'u', 'v', 'w' )
[298]	481	IF ( TRIM( var ) == 'p' ) unit = 'Pa'
[3421]	482	IF ( TRIM( var ) == 'theta' ) unit = 'K'
[298]	483	IF ( TRIM( var ) == 'u' ) unit = 'm/s'
	484	IF ( TRIM( var ) == 'v' ) unit = 'm/s'
	485	IF ( TRIM( var ) == 'w' ) unit = 'm/s'
	486	CONTINUE
	487
	488	CASE DEFAULT
[3435]	489
[298]	490	CALL user_check_data_output( var, unit )
[3467]	491
	492	IF ( salsa ) THEN
	493	CALL salsa_check_data_output( var, unit )
	494	ENDIF
[298]	495
[3435]	496	IF ( unit == 'illegal' .AND. air_chemistry &
	497	.AND. (var(1:3) == 'kc_' .OR. var(1:3) == 'em_') ) THEN
	498	CALL chem_check_data_output( var, unit, 0, 0, 0 )
	499	ENDIF
	500
[298]	501	IF ( unit == 'illegal' ) THEN
[3435]	502	CALL radiation_check_data_output( var, unit, 0, 0, 0 )
	503	ENDIF
	504
	505	IF ( unit == 'illegal' ) THEN
[298]	506	IF ( do_mask_user(mid,1) /= ' ' ) THEN
[3045]	507	WRITE ( message_string, * ) 'illegal value for data_', &
	508	'output_masks or data_output_masks_user: "', &
[298]	509	TRIM( do_mask(mid,i) ), '"'
[3045]	510	CALL message( 'init_masks', 'PA0018', 1, 2, 0, 6, 0 )
[298]	511	ELSE
[3045]	512	WRITE ( message_string, * ) 'illegal value for data_', &
	513	' output_masks : "', TRIM( do_mask(mid,i) ), '"'
[564]	514	CALL message( 'init_masks', 'PA0330', 1, 2, 0, 6, 0 )
[298]	515	ENDIF
	516	ENDIF
	517
	518	END SELECT
	519	!
	520	!-- Set the internal steering parameters appropriately
	521	domask_no(mid,j) = domask_no(mid,j) + 1
	522	domask(mid,j,domask_no(mid,j)) = do_mask(mid,i)
	523	domask_unit(mid,j,domask_no(mid,j)) = unit
	524
	525	IF ( j == 1 ) THEN
	526	!
	527	!-- Check, if variable is already subject to averaging
	528	found = .FALSE.
	529	DO k = 1, doav_n
	530	IF ( TRIM( doav(k) ) == TRIM( var ) ) found = .TRUE.
	531	ENDDO
	532
	533	IF ( .NOT. found ) THEN
	534	doav_n = doav_n + 1
	535	doav(doav_n) = var
	536	ENDIF
	537	ENDIF
	538
	539	i = i + 1
	540
	541	ENDDO ! do_mask(mid,i)
	542	ENDDO ! mid
	543
	544
	545	!
	546	!-- Determine mask locations for each mask
	547	DO mid = 1, masks
	548	!
	549	!-- Set local masks for each subdomain along all three dimensions
	550	CALL set_mask_locations( 1, dx, 'dx', nx, 'nx', nxl, nxr )
	551	CALL set_mask_locations( 2, dy, 'dy', ny, 'ny', nys, nyn )
[3435]	552	IF ( .NOT. mask_surface(mid) ) THEN
	553	CALL set_mask_locations( 3, dz(1), 'dz', nz, 'nz', nzb, nzt )
	554	ELSE
[298]	555	!
[3435]	556	!-- Set vertical mask locations and size in case of terrain-following
	557	!-- output
	558	count = 0
	559	DO WHILE ( mask_k_over_surface(mid, count+1) >= 0 )
	560	m = mask_k_over_surface(mid, count+1)
	561	IF ( m > nz+1 ) THEN
	562	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
	563	m,' in mask ',mid,' along dimension ', 3, &
	564	' exceeds (nz+1) = ',nz+1
	565	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
	566	ENDIF
	567	count = count + 1
	568	mask_k(mid,count) = mask_k_over_surface(mid, count)
	569	IF ( count == mask_xyz_dimension ) EXIT
	570	ENDDO
	571	mask_start_l(mid,3) = 1
	572	mask_size(mid,3) = count
	573	mask_size_l(mid,3) = count
	574	ENDIF
	575	!
[298]	576	!-- Set global masks along all three dimensions (required by
	577	!-- define_netcdf_header).
[1804]	578	#if defined( __parallel )
[298]	579	!
	580	!-- PE0 receives partial arrays from all processors of the respective mask
	581	!-- and outputs them. Here a barrier has to be set, because otherwise
	582	!-- "-MPI- FATAL: Remote protocol queue full" may occur.
[807]	583
[298]	584	CALL MPI_BARRIER( comm2d, ierr )
	585
	586	IF ( myid == 0 ) THEN
	587	!
	588	!-- Local arrays can be relocated directly.
	589	mask_i_global(mid,mask_start_l(mid,1): &
	590	mask_start_l(mid,1)+mask_size_l(mid,1)-1) = &
	591	mask_i(mid,:mask_size_l(mid,1))
	592	mask_j_global(mid,mask_start_l(mid,2): &
	593	mask_start_l(mid,2)+mask_size_l(mid,2)-1) = &
	594	mask_j(mid,:mask_size_l(mid,2))
	595	mask_k_global(mid,mask_start_l(mid,3): &
	596	mask_start_l(mid,3)+mask_size_l(mid,3)-1) = &
	597	mask_k(mid,:mask_size_l(mid,3))
	598	!
	599	!-- Receive data from all other PEs.
	600	DO n = 1, numprocs-1
	601	!
	602	!-- Receive index limits first, then arrays.
	603	!-- Index limits are received in arbitrary order from the PEs.
	604	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, &
	605	comm2d, status, ierr )
	606	!
	607	!-- Not all PEs have data for the mask.
	608	IF ( ind(1) /= -9999 ) THEN
	609	sender = status(MPI_SOURCE)
	610	CALL MPI_RECV( tmp_array(ind(1)), ind(2)-ind(1)+1, &
[363]	611	MPI_INTEGER, sender, 1, comm2d, status, ierr )
[298]	612	mask_i_global(mid,ind(1):ind(2)) = tmp_array(ind(1):ind(2))
	613	CALL MPI_RECV( tmp_array(ind(3)), ind(4)-ind(3)+1, &
[363]	614	MPI_INTEGER, sender, 2, comm2d, status, ierr )
[298]	615	mask_j_global(mid,ind(3):ind(4)) = tmp_array(ind(3):ind(4))
	616	CALL MPI_RECV( tmp_array(ind(5)), ind(6)-ind(5)+1, &
[363]	617	MPI_INTEGER, sender, 3, comm2d, status, ierr )
[298]	618	mask_k_global(mid,ind(5):ind(6)) = tmp_array(ind(5):ind(6))
	619	ENDIF
	620	ENDDO
	621
	622	ELSE
	623	!
	624	!-- If at least part of the mask resides on the PE, send the index limits
	625	!-- for the target array, otherwise send -9999 to PE0.
[996]	626	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
	627	mask_size_l(mid,3) > 0 ) THEN
[298]	628	ind(1) = mask_start_l(mid,1)
	629	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
	630	ind(3) = mask_start_l(mid,2)
	631	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
	632	ind(5) = mask_start_l(mid,3)
	633	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
	634	ELSE
	635	ind(1) = -9999; ind(2) = -9999
	636	ind(3) = -9999; ind(4) = -9999
	637	ind(5) = -9999; ind(6) = -9999
	638	ENDIF
	639	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
	640	!
	641	!-- If applicable, send data to PE0.
	642	IF ( ind(1) /= -9999 ) THEN
	643	tmp_array(:mask_size_l(mid,1)) = mask_i(mid,:mask_size_l(mid,1))
	644	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,1), &
[363]	645	MPI_INTEGER, 0, 1, comm2d, ierr )
[298]	646	tmp_array(:mask_size_l(mid,2)) = mask_j(mid,:mask_size_l(mid,2))
	647	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,2), &
[363]	648	MPI_INTEGER, 0, 2, comm2d, ierr )
[298]	649	tmp_array(:mask_size_l(mid,3)) = mask_k(mid,:mask_size_l(mid,3))
	650	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,3), &
[363]	651	MPI_INTEGER, 0, 3, comm2d, ierr )
[298]	652	ENDIF
	653	ENDIF
	654	!
	655	!-- A barrier has to be set, because otherwise some PEs may proceed too fast
	656	!-- so that PE0 may receive wrong data on tag 0.
	657	CALL MPI_BARRIER( comm2d, ierr )
[409]	658
[1031]	659	IF ( netcdf_data_format > 4 ) THEN
[409]	660
[1414]	661	CALL MPI_BCAST( mask_i_global(mid,:), nx+2, MPI_INTEGER, 0, comm2d, &
[493]	662	ierr )
[1414]	663	CALL MPI_BCAST( mask_j_global(mid,:), ny+2, MPI_INTEGER, 0, comm2d, &
[493]	664	ierr )
[1414]	665	CALL MPI_BCAST( mask_k_global(mid,:), nz+2, MPI_INTEGER, 0, comm2d, &
[493]	666	ierr )
[1682]	667
[409]	668	ENDIF
[298]	669
[1804]	670	#else
[298]	671	!
	672	!-- Local arrays can be relocated directly.
	673	mask_i_global(mid,:) = mask_i(mid,:)
	674	mask_j_global(mid,:) = mask_j(mid,:)
	675	mask_k_global(mid,:) = mask_k(mid,:)
	676	#endif
	677	ENDDO ! mid
	678
	679	DEALLOCATE( tmp_array )
	680	!
	681	!-- Internal mask arrays cannot be deallocated on PE 0 because they are
	682	!-- required for header output on PE 0.
	683	IF ( myid /= 0 ) DEALLOCATE( mask, mask_loop )
	684
	685	CONTAINS
[493]	686
[298]	687	!------------------------------------------------------------------------------!
	688	! Description:
	689	! ------------
[1682]	690	!> Set local mask for each subdomain along 'dim' direction.
[298]	691	!------------------------------------------------------------------------------!
[1682]	692	SUBROUTINE set_mask_locations( dim, dxyz, dxyz_string, nxyz, nxyz_string, &
	693	lb, ub )
[298]	694
	695	IMPLICIT NONE
	696
[1682]	697	CHARACTER (LEN=2) :: dxyz_string !<
	698	CHARACTER (LEN=2) :: nxyz_string !<
[1320]	699
[1682]	700	INTEGER(iwp) :: count !<
	701	INTEGER(iwp) :: count_l !<
	702	INTEGER(iwp) :: dim !<
	703	INTEGER(iwp) :: m !<
	704	INTEGER(iwp) :: loop_begin !<
	705	INTEGER(iwp) :: loop_end !<
	706	INTEGER(iwp) :: loop_stride !<
	707	INTEGER(iwp) :: lb !<
	708	INTEGER(iwp) :: nxyz !<
	709	INTEGER(iwp) :: ub !<
[1320]	710
[1682]	711	REAL(wp) :: dxyz !<
	712	REAL(wp) :: ddxyz !<
	713	REAL(wp) :: tmp1 !<
	714	REAL(wp) :: tmp2 !<
[298]	715
[1353]	716	count = 0; count_l = 0
	717	ddxyz = 1.0_wp / dxyz
	718	tmp1 = 0.0_wp
	719	tmp2 = 0.0_wp
[298]	720
[1353]	721	IF ( mask(mid,dim,1) >= 0.0_wp ) THEN
[298]	722	!
	723	!-- use predefined mask_* array
[1353]	724	DO WHILE ( mask(mid,dim,count+1) >= 0.0_wp )
[298]	725	count = count + 1
	726	IF ( dim == 1 .OR. dim == 2 ) THEN
[1353]	727	m = NINT( mask(mid,dim,count) * mask_scale(dim) * ddxyz - 0.5_wp )
[1414]	728	IF ( m < 0 ) m = 0 ! avoid negative values
[298]	729	ELSEIF ( dim == 3 ) THEN
	730	ind_array = &
[595]	731	MINLOC( ABS( mask(mid,dim,count) * mask_scale(dim) - zu ) )
[298]	732	m = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
	733	ENDIF
[1414]	734	IF ( m > (nxyz+1) ) THEN
[3045]	735	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
	736	m,' in mask ',mid,' along dimension ',dim, &
[1414]	737	' exceeds (',nxyz_string,'+1) = ',nxyz+1
[564]	738	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
[298]	739	ENDIF
[1414]	740	IF ( ( m >= lb .AND. m <= ub ) .OR. &
	741	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
[298]	742	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
	743	count_l = count_l + 1
	744	IF ( dim == 1 ) THEN
	745	mask_i(mid,count_l) = m
	746	ELSEIF ( dim == 2 ) THEN
	747	mask_j(mid,count_l) = m
	748	ELSEIF ( dim == 3 ) THEN
	749	mask_k(mid,count_l) = m
	750	ENDIF
	751	ENDIF
	752	IF ( count == mask_xyz_dimension ) EXIT
	753	ENDDO
	754	mask_size(mid,dim) = count
	755	mask_size_l(mid,dim) = count_l
	756
	757	ELSE
	758	!
	759	!-- use predefined mask_loop_* array, or use the default (all grid points
	760	!-- along this direction)
[1353]	761	IF ( mask_loop(mid,dim,1) < 0.0_wp ) THEN
[298]	762	tmp1 = mask_loop(mid,dim,1)
[1186]	763	mask_loop(mid,dim,1) = zw(nzb) ! lowest level (default)
[298]	764	ENDIF
	765	IF ( dim == 1 .OR. dim == 2 ) THEN
[1353]	766	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
[298]	767	tmp2 = mask_loop(mid,dim,2)
[3512]	768	mask_loop(mid,dim,2) = nxyz*dxyz / mask_scale(dim) ! (default)
[298]	769	ENDIF
	770	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
[1414]	771	> (nxyz+1) * dxyz / mask_scale(dim) ) THEN
[303]	772	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),5A,I1,A,F9.3)' ) &
[3045]	773	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
[303]	774	' and/or mask_loop(',mid,',',dim,',2)=', &
[3045]	775	mask_loop(mid,dim,2),' exceed (', &
	776	nxyz_string,'+1)*',dxyz_string,'/mask_scale(',dim,')=', &
[1414]	777	(nxyz+1)*dxyz/mask_scale(dim)
[564]	778	CALL message( 'init_masks', 'PA0332', 1, 2, 0, 6, 0 )
[298]	779	ENDIF
[3045]	780	loop_begin = NINT( mask_loop(mid,dim,1) * mask_scale(dim) &
[1353]	781	* ddxyz - 0.5_wp )
[3045]	782	loop_end = NINT( mask_loop(mid,dim,2) * mask_scale(dim) &
[1353]	783	* ddxyz - 0.5_wp )
[3045]	784	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) &
[1032]	785	* ddxyz )
[1414]	786	IF ( loop_begin == -1 ) loop_begin = 0 ! avoid negative values
[298]	787	ELSEIF ( dim == 3 ) THEN
[1353]	788	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
[298]	789	tmp2 = mask_loop(mid,dim,2)
[1414]	790	mask_loop(mid,dim,2) = zu(nz+1) / mask_scale(dim) ! (default)
[298]	791	ENDIF
	792	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
[1414]	793	> zu(nz+1) / mask_scale(dim) ) THEN
[3045]	794	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),A,I1,A,F9.3)' ) &
	795	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
[303]	796	' and/or mask_loop(',mid,',',dim,',2)=', &
[3045]	797	mask_loop(mid,dim,2),' exceed zu(nz+1)/mask_scale(',dim, &
[1414]	798	')=',zu(nz+1)/mask_scale(dim)
[564]	799	CALL message( 'init_masks', 'PA0333', 1, 2, 0, 6, 0 )
[298]	800	ENDIF
[303]	801	ind_array = &
[595]	802	MINLOC( ABS( mask_loop(mid,dim,1) * mask_scale(dim) - zu ) )
[298]	803	loop_begin = &
[303]	804	ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
	805	ind_array = &
[595]	806	MINLOC( ABS( mask_loop(mid,dim,2) * mask_scale(dim) - zu ) )
[298]	807	loop_end = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
	808	!
[303]	809	!-- The following line assumes a constant vertical grid spacing within
	810	!-- the vertical mask range; it fails for vertical grid stretching.
[3065]	811	!-- Maybe revise later. Issue warning but continue execution. ABS(...)
	812	!-- within the IF statement is necessary because the default value of
	813	!-- dz_stretch_level_start is -9999999.9_wp.
[303]	814	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) * ddxyz )
	815
[3065]	816	IF ( mask_loop(mid,dim,2) * mask_scale(dim) > &
	817	ABS( dz_stretch_level_start(1) ) ) THEN
[3045]	818	WRITE ( message_string, '(A,I3,A,I1,A,F9.3,A,F8.2,3A)' ) &
	819	'mask_loop(',mid,',',dim,',2)=', mask_loop(mid,dim,2), &
[3065]	820	' exceeds dz_stretch_level=',dz_stretch_level_start(1), &
[3046]	821	'.&Vertical mask locations will not ', &
[3045]	822	'match the desired heights within the stretching ', &
[2271]	823	'region.'
[564]	824	CALL message( 'init_masks', 'PA0334', 0, 1, 0, 6, 0 )
[303]	825	ENDIF
	826
[298]	827	ENDIF
	828	!
	829	!-- If necessary, reset mask_loop(mid,dim,1) and mask_loop(mid,dim,2).
[1353]	830	IF ( tmp1 < 0.0_wp ) mask_loop(mid,dim,1) = tmp1
	831	IF ( tmp2 < 0.0_wp ) mask_loop(mid,dim,2) = tmp2
[298]	832	!
	833	!-- The default stride +/-1 (every grid point) applies if
	834	!-- mask_loop(mid,dim,3) is not specified (its default is zero).
	835	IF ( loop_stride == 0 ) THEN
	836	IF ( loop_end >= loop_begin ) THEN
	837	loop_stride = 1
	838	ELSE
	839	loop_stride = -1
	840	ENDIF
	841	ENDIF
	842	DO m = loop_begin, loop_end, loop_stride
	843	count = count + 1
[1414]	844	IF ( ( m >= lb .AND. m <= ub ) .OR. &
	845	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
[298]	846	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
	847	count_l = count_l + 1
	848	IF ( dim == 1 ) THEN
	849	mask_i(mid,count_l) = m
	850	ELSEIF ( dim == 2 ) THEN
	851	mask_j(mid,count_l) = m
	852	ELSEIF ( dim == 3 ) THEN
	853	mask_k(mid,count_l) = m
	854	ENDIF
	855	ENDIF
	856	ENDDO
	857	mask_size(mid,dim) = count
	858	mask_size_l(mid,dim) = count_l
[1414]	859
[298]	860	ENDIF
	861
	862	END SUBROUTINE set_mask_locations
	863
	864	END SUBROUTINE init_masks

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