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source: palm/trunk/SOURCE/init_masks.f90 @ 4879

Last change on this file since 4879 was 4828, checked in by Giersch, 4 years ago
Copyright updated to year 2021, interface pmc_sort removed to accelarate the nesting code
Property svn:keywords set to `Id`
File size: 36.4 KB

Rev	Line
[1682]	1	!> @file init_masks.f90
[4648]	2	!--------------------------------------------------------------------------------------------------!
[2696]	3	! This file is part of the PALM model system.
[1036]	4	!
[4648]	5	! PALM is free software: you can redistribute it and/or modify it under the terms of the GNU General
	6	! Public License as published by the Free Software Foundation, either version 3 of the License, or
	7	! (at your option) any later version.
[1036]	8	!
[4648]	9	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
	10	! implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
	11	! Public License for more details.
[1036]	12	!
[4648]	13	! You should have received a copy of the GNU General Public License along with PALM. If not, see
	14	! <http://www.gnu.org/licenses/>.
[1036]	15	!
[4828]	16	! Copyright 1997-2021 Leibniz Universitaet Hannover
[4648]	17	!--------------------------------------------------------------------------------------------------!
[1036]	18	!
[484]	19	! Current revisions:
[298]	20	! -----------------
[4648]	21	!
	22	!
[1321]	23	! Former revisions:
	24	! -----------------
	25	! $Id: init_masks.f90 4828 2021-01-05 11:21:41Z gronemeier $
[4742]	26	! Implement snow and graupel (bulk microphysics)
	27	!
	28	! 4648 2020-08-25 07:52:08Z raasch
[4648]	29	! file re-formatted to follow the PALM coding standard
	30	!
	31	! 4521 2020-05-06 11:39:49Z schwenkel
[4521]	32	! Rename variable
[4648]	33	!
[4521]	34	! 4502 2020-04-17 16:14:16Z schwenkel
[4502]	35	! Implementation of ice microphysics
[4648]	36	!
[4502]	37	! 4444 2020-03-05 15:59:50Z raasch
[4444]	38	! bugfix: cpp-directives for serial mode added
[4648]	39	!
[4444]	40	! 4360 2020-01-07 11:25:50Z suehring
[4182]	41	! Corrected "Former revisions" section
[4648]	42	!
[4182]	43	! 4069 2019-07-01 14:05:51Z Giersch
[4648]	44	! Masked output running index mid has been introduced as a local variable to avoid runtime error
	45	! (Loop variable has been modified) in time_integration
	46	!
[4069]	47	! 3766 2019-02-26 16:23:41Z raasch
[3665]	48	! unused variables removed
[4648]	49	!
[3766]	50	! 3687 2019-01-22 10:42:06Z knoop
	51	! unused variables removed
[4648]	52	!
[3665]	53	! 3655 2019-01-07 16:51:22Z knoop
[4648]	54	! Move the control parameter "salsa" from salsa_mod to control_parameters (M. Kurppa)
[2716]	55	!
[4182]	56	! 410 2009-12-04 17:05:40Z letzel
	57	! Initial revision
	58	!
	59	!
[298]	60	! Description:
	61	! ------------
[1682]	62	!> Initialize masked data output
[4648]	63	!--------------------------------------------------------------------------------------------------!
[1682]	64	SUBROUTINE init_masks
[298]	65
[4648]	66	USE arrays_3d, &
[1320]	67	ONLY: zu, zw
	68
[4648]	69	USE bulk_cloud_model_mod, &
	70	ONLY: bulk_cloud_model, microphysics_ice_phase, microphysics_morrison, &
[4742]	71	microphysics_seifert, snow, graupel
[3435]	72
[1320]	73
[4648]	74	USE control_parameters, &
	75	ONLY: constant_diffusion, cloud_droplets, data_output_masks, data_output_masks_user, doav,&
	76	doav_n, domask, domask_no, dz, dz_stretch_level_start, humidity, mask, masks, &
	77	mask_scale, mask_i, mask_i_global, mask_j, mask_j_global, mask_k, mask_k_global, &
	78	mask_k_over_surface, mask_loop, mask_size, mask_size_l, mask_start_l, mask_surface, &
	79	mask_x, mask_x_loop, mask_xyz_dimension, mask_y, mask_y_loop, mask_z, mask_z_loop, &
	80	max_masks, message_string, passive_scalar, ocean_mode, varnamelength
	81
	82	USE grid_variables, &
[1320]	83	ONLY: dx, dy
	84
[4648]	85	USE indices, &
[1320]	86	ONLY: nx, nxl, nxr, ny, nyn, nys, nz, nzb, nzt
	87
	88	USE kinds
	89
[4648]	90	USE module_interface, &
[3687]	91	ONLY: module_interface_init_masks
	92
[4648]	93	USE netcdf_interface, &
[1783]	94	ONLY: domask_unit, netcdf_data_format
[1320]	95
[4648]	96	USE particle_attributes, &
[1320]	97	ONLY: particle_advection
	98
[3687]	99	USE pegrid
[3435]	100
[298]	101	IMPLICIT NONE
	102
[3554]	103	CHARACTER (LEN=varnamelength) :: var !< contains variable name
	104	CHARACTER (LEN=7) :: unit !< contains unit of variable
[4648]	105
[3554]	106	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask !< list of output variables
	107	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask_user !< list of user-specified output variables
[298]	108
[3435]	109	INTEGER(iwp) :: count !< counting masking indices along a dimension
[3554]	110	INTEGER(iwp) :: i !< loop index
	111	INTEGER(iwp) :: ilen !< length of string saved in 'do_mask'
	112	INTEGER(iwp) :: ind_array(1) !< array index
	113	INTEGER(iwp) :: j !< loop index
	114	INTEGER(iwp) :: k !< loop index
[3435]	115	INTEGER(iwp) :: m !< mask index
[4069]	116	INTEGER(iwp) :: mid !< masked output running index
[4444]	117	#if defined( __parallel )
	118	INTEGER(iwp) :: ind(6) !< index limits (lower/upper bounds) of output array
[3554]	119	INTEGER(iwp) :: n !< loop index
	120	INTEGER(iwp) :: sender !< PE id of sending PE
[4444]	121	#endif
[4648]	122
[3554]	123	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: tmp_array !< temporary 1D array
[298]	124
[3554]	125	LOGICAL :: found !< true if variable is found
[2344]	126
[298]	127	!
[4648]	128	!-- Initial values are explicitly set here due to a bug in the Cray compiler in case of assignments
	129	!-- of initial values in declaration statements for arrays with more than 9999 elements
	130	!-- (appears with -eD only)
[2344]	131	domask = ' '
	132
	133	!
[298]	134	!-- Allocation and initialization
[1414]	135	ALLOCATE( tmp_array( MAX(nx,ny,nz)+2 ) )
[298]	136
[4648]	137	ALLOCATE( mask_i(max_masks,nxr-nxl+2), &
	138	mask_j(max_masks,nyn-nys+2), &
[1414]	139	mask_k(max_masks,nzt-nzb+2) )
[298]	140	!
	141	!-- internal mask arrays ("mask,dimension,selection")
[4648]	142	ALLOCATE( mask(max_masks,3,mask_xyz_dimension), mask_loop(max_masks,3,3) )
	143
[298]	144	!
[4648]	145	!-- Parallel mask output not yet supported. In check_parameters data format is restricted and is
	146	!-- switched back to non-parallel output. Therefore the following error can not occur at the moment.
[1031]	147	IF ( netcdf_data_format > 4 ) THEN
[4648]	148	message_string = 'netCDF file formats '// &
	149	'5 and 6 (with parallel I/O support)'// &
[3045]	150	' are currently not supported.'
[564]	151	CALL message( 'init_masks', 'PA0328', 1, 2, 0, 6, 0 )
[298]	152	ENDIF
[553]	153
[298]	154	!
	155	!-- Store data output parameters for masked data output in few shared arrays
[996]	156	DO mid = 1, masks
[4648]	157
[553]	158	do_mask (mid,:) = data_output_masks(mid,:)
	159	do_mask_user(mid,:) = data_output_masks_user(mid,:)
[4648]	160	mask (mid,1,:) = mask_x(mid,:)
[553]	161	mask (mid,2,:) = mask_y(mid,:)
[4648]	162	mask (mid,3,:) = mask_z(mid,:)
[3435]	163	!
	164	!-- Flag a mask as terrain following
	165	IF ( mask_k_over_surface(mid,1) /= -1_iwp ) THEN
	166	mask_surface(mid) = .TRUE.
	167	ENDIF
	168
[4648]	169	IF ( mask_x_loop(mid,1) == -1.0_wp .AND. mask_x_loop(mid,2) == -1.0_wp .AND. &
	170	mask_x_loop(mid,3) == -1.0_wp ) THEN
[1353]	171	mask_loop(mid,1,1:2) = -1.0_wp
	172	mask_loop(mid,1,3) = 0.0_wp
[564]	173	ELSE
	174	mask_loop(mid,1,:) = mask_x_loop(mid,:)
	175	ENDIF
[4648]	176	IF ( mask_y_loop(mid,1) == -1.0_wp .AND. mask_y_loop(mid,2) == -1.0_wp .AND. &
	177	mask_y_loop(mid,3) == -1.0_wp ) THEN
[1353]	178	mask_loop(mid,2,1:2) = -1.0_wp
	179	mask_loop(mid,2,3) = 0.0_wp
[564]	180	ELSE
	181	mask_loop(mid,2,:) = mask_y_loop(mid,:)
	182	ENDIF
[4648]	183	IF ( mask_z_loop(mid,1) == -1.0_wp .AND. mask_z_loop(mid,2) == -1.0_wp .AND. &
	184	mask_z_loop(mid,3) == -1.0_wp ) THEN
[1353]	185	mask_loop(mid,3,1:2) = -1.0_wp
	186	mask_loop(mid,3,3) = 0.0_wp
[564]	187	ELSE
	188	mask_loop(mid,3,:) = mask_z_loop(mid,:)
	189	ENDIF
[4648]	190
[553]	191	ENDDO
[4648]	192
[298]	193	mask_i = -1; mask_j = -1; mask_k = -1
[4648]	194
[298]	195	!
	196	!-- Global arrays are required by define_netcdf_header.
[1031]	197	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
[4648]	198	ALLOCATE( mask_i_global(max_masks,nx+2), &
	199	mask_j_global(max_masks,ny+2), &
[1414]	200	mask_k_global(max_masks,nz+2) )
[298]	201	mask_i_global = -1; mask_j_global = -1; mask_k_global = -1
	202	ENDIF
	203
	204	!
	205	!-- Determine variable names for each mask
	206	DO mid = 1, masks
	207	!
	208	!-- Append user-defined data output variables to the standard data output
	209	IF ( do_mask_user(mid,1) /= ' ' ) THEN
	210	i = 1
	211	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
	212	i = i + 1
	213	ENDDO
	214	j = 1
	215	DO WHILE ( do_mask_user(mid,j) /= ' ' .AND. j <= 100 )
	216	IF ( i > 100 ) THEN
[4648]	217	WRITE ( message_string, * ) 'number of output quantitities ', &
	218	'given by data_output_mask and data_output_mask_user ',&
	219	'exceeds the limit of 100'
[564]	220	CALL message( 'init_masks', 'PA0329', 1, 2, 0, 6, 0 )
[298]	221	ENDIF
	222	do_mask(mid,i) = do_mask_user(mid,j)
	223	i = i + 1
	224	j = j + 1
	225	ENDDO
	226	ENDIF
	227
	228	!
	229	!-- Check and set steering parameters for mask data output and averaging
	230	i = 1
[996]	231	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
[298]	232	!
	233	!-- Check for data averaging
	234	ilen = LEN_TRIM( do_mask(mid,i) )
	235	j = 0 ! no data averaging
	236	IF ( ilen > 3 ) THEN
	237	IF ( do_mask(mid,i)(ilen-2:ilen) == '_av' ) THEN
	238	j = 1 ! data averaging
	239	do_mask(mid,i) = do_mask(mid,i)(1:ilen-3)
	240	ENDIF
	241	ENDIF
	242	var = TRIM( do_mask(mid,i) )
	243	!
	244	!-- Check for allowed value and set units
	245	SELECT CASE ( TRIM( var ) )
	246
	247	CASE ( 'e' )
	248	IF ( constant_diffusion ) THEN
[4648]	249	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	250	'" requires constant_diffusion = .FALSE.'
[564]	251	CALL message( 'init_masks', 'PA0103', 1, 2, 0, 6, 0 )
[298]	252	ENDIF
	253	unit = 'm2/s2'
	254
[3421]	255	CASE ( 'thetal' )
[3274]	256	IF ( .NOT. bulk_cloud_model ) THEN
[4648]	257	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	258	'" requires bulk_cloud_model = .TRUE.'
[773]	259	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
[771]	260	ENDIF
	261	unit = 'K'
	262
[2292]	263	CASE ( 'nc' )
[3274]	264	IF ( .NOT. bulk_cloud_model ) THEN
[4648]	265	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	266	'" requires bulk_cloud_model = .TRUE.'
[2292]	267	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
[4648]	268	ELSEIF ( .NOT. microphysics_morrison ) THEN
	269	message_string = 'output of "' // TRIM( var ) // '" ' // 'requires = morrison'
[2292]	270	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
	271	ENDIF
	272	unit = '1/m3'
	273
[4502]	274	CASE ( 'ni' )
	275	IF ( .NOT. bulk_cloud_model ) THEN
[4648]	276	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	277	'" requires bulk_cloud_model = .TRUE.'
[4502]	278	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
[4648]	279	ELSEIF ( .NOT. microphysics_ice_phase ) THEN
	280	message_string = 'output of "' // TRIM( var ) // '" ' // &
	281	'requires microphysics_ice_phase = .TRUE.'
[4502]	282	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
	283	ENDIF
	284	unit = '1/m3'
	285
[4742]	286	CASE ( 'ng' )
	287	IF ( .NOT. bulk_cloud_model ) THEN
	288	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	289	'" requires bulk_cloud_model = .TRUE.'
	290	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
	291	ELSEIF ( .NOT. microphysics_ice_phase .OR. .NOT. graupel ) THEN
	292	message_string = 'output of "' // TRIM( var ) // '" ' // &
	293	'requires microphysics_ice_phase = .TRUE.'
	294	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
	295	ENDIF
	296	unit = '1/m3'
	297
	298
[1438]	299	CASE ( 'nr' )
[3274]	300	IF ( .NOT. bulk_cloud_model ) THEN
[4648]	301	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	302	'" requires bulk_cloud_model = .TRUE.'
[1438]	303	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
[4648]	304	ELSEIF ( .NOT. microphysics_seifert ) THEN
	305	message_string = 'output of "' // TRIM( var ) // '"' // &
	306	'requires cloud_scheme = seifert_beheng'
[1438]	307	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
	308	ENDIF
	309	unit = '1/m3'
	310
[4742]	311	CASE ( 'ns' )
	312	IF ( .NOT. bulk_cloud_model ) THEN
	313	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	314	'" requires bulk_cloud_model = .TRUE.'
	315	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
	316	ELSEIF ( .NOT. microphysics_seifert .OR. .NOT. snow) THEN
	317	message_string = 'output of "' // TRIM( var ) // '"' // &
	318	'requires cloud_scheme = seifert_beheng'
	319	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
	320	ENDIF
	321	unit = '1/m3'
	322
	323
[298]	324	CASE ( 'pc', 'pr' )
	325	IF ( .NOT. particle_advection ) THEN
[4648]	326	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	327	'" requires a "particles_par"-NAMELIST in the ', &
	328	'parameter file (PARIN)'
[564]	329	CALL message( 'init_masks', 'PA0104', 1, 2, 0, 6, 0 )
[298]	330	ENDIF
	331	IF ( TRIM( var ) == 'pc' ) unit = 'number'
	332	IF ( TRIM( var ) == 'pr' ) unit = 'm'
	333
[3421]	334	CASE ( 'q', 'thetav' )
[298]	335	IF ( .NOT. humidity ) THEN
[4648]	336	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	337	'" requires humidity = .TRUE.'
[564]	338	CALL message( 'init_masks', 'PA0105', 1, 2, 0, 6, 0 )
[298]	339	ENDIF
	340	IF ( TRIM( var ) == 'q' ) unit = 'kg/kg'
[3421]	341	IF ( TRIM( var ) == 'thetav' ) unit = 'K'
[298]	342
[1438]	343	CASE ( 'qc' )
[3274]	344	IF ( .NOT. bulk_cloud_model ) THEN
[4648]	345	message_string = 'output of "' // TRIM( var ) // '"' // &
	346	'requires bulk_cloud_model = .TRUE.'
[1438]	347	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
	348	ENDIF
	349	unit = 'kg/kg'
	350
[298]	351	CASE ( 'ql' )
[3274]	352	IF ( .NOT. ( bulk_cloud_model .OR. cloud_droplets ) ) THEN
[4648]	353	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	354	'" requires bulk_cloud_model = .TRUE. or ', &
	355	'cloud_droplets = .TRUE.'
[3045]	356	CALL message( 'init_masks', 'PA0106', 1, 2, 0, 6, 0 )
[298]	357	ENDIF
	358	unit = 'kg/kg'
	359
	360	CASE ( 'ql_c', 'ql_v', 'ql_vp' )
	361	IF ( .NOT. cloud_droplets ) THEN
[4648]	362	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	363	'" requires cloud_droplets = .TRUE.'
[564]	364	CALL message( 'init_masks', 'PA0107', 1, 2, 0, 6, 0 )
[298]	365	ENDIF
	366	IF ( TRIM( var ) == 'ql_c' ) unit = 'kg/kg'
	367	IF ( TRIM( var ) == 'ql_v' ) unit = 'm3'
	368	IF ( TRIM( var ) == 'ql_vp' ) unit = 'none'
	369
	370	CASE ( 'qv' )
[3274]	371	IF ( .NOT. bulk_cloud_model ) THEN
[4648]	372	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	373	' " requires bulk_cloud_model = .TRUE.'
[564]	374	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
[298]	375	ENDIF
	376	unit = 'kg/kg'
	377
[4742]	378	CASE ( 'qg' )
	379	IF ( .NOT. bulk_cloud_model ) THEN
	380	message_string = 'output of "' // TRIM( var ) // '" ' // &
	381	'requires bulk_cloud_model = .TRUE.'
	382	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
	383	ELSEIF ( .NOT. microphysics_ice_phase .OR. .NOT. graupel ) THEN
	384	message_string = 'output of "' // TRIM( var ) // '" ' // &
	385	'requires microphysics_ice_phase = .TRUE.'
	386	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
	387	ENDIF
	388	unit = 'kg/kg'
	389
[4502]	390	CASE ( 'qi' )
	391	IF ( .NOT. bulk_cloud_model ) THEN
[4648]	392	message_string = 'output of "' // TRIM( var ) // '" ' // &
	393	'requires bulk_cloud_model = .TRUE.'
[4502]	394	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
[4521]	395	ELSEIF ( .NOT. microphysics_ice_phase ) THEN
[4648]	396	message_string = 'output of "' // TRIM( var ) // '" ' // &
	397	'requires microphysics_ice_phase = .TRUE.'
[4502]	398	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
	399	ENDIF
	400	unit = 'kg/kg'
	401
[1438]	402	CASE ( 'qr' )
[3274]	403	IF ( .NOT. bulk_cloud_model ) THEN
[4648]	404	message_string = 'output of "' // TRIM( var ) // '" ' // &
	405	'requires bulk_cloud_model = .TRUE.'
[1438]	406	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
[1822]	407	ELSEIF ( .NOT. microphysics_seifert ) THEN
[4648]	408	message_string = 'output of "' // TRIM( var ) // '" ' // &
	409	'requires cloud_scheme = seifert_beheng'
[1438]	410	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
	411	ENDIF
	412	unit = 'kg/kg'
	413
[4742]	414	CASE ( 'qs' )
	415	IF ( .NOT. bulk_cloud_model ) THEN
	416	message_string = 'output of "' // TRIM( var ) // '" ' // &
	417	'requires bulk_cloud_model = .TRUE.'
	418	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
	419	ELSEIF ( .NOT. microphysics_seifert .OR. snow ) THEN
	420	message_string = 'output of "' // TRIM( var ) // '" ' // &
	421	'requires cloud_scheme = seifert_beheng'
	422	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
	423	ENDIF
	424	unit = 'kg/kg'
	425
	426
[3421]	427	CASE ( 'rho_sea_water' )
[3294]	428	IF ( .NOT. ocean_mode ) THEN
[4648]	429	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	430	'" requires ocean mode'
[564]	431	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
[298]	432	ENDIF
	433	unit = 'kg/m3'
	434
	435	CASE ( 's' )
	436	IF ( .NOT. passive_scalar ) THEN
[4648]	437	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	438	'" requires passive_scalar = .TRUE.'
[564]	439	CALL message( 'init_masks', 'PA0110', 1, 2, 0, 6, 0 )
[298]	440	ENDIF
	441	unit = 'conc'
	442
	443	CASE ( 'sa' )
[3294]	444	IF ( .NOT. ocean_mode ) THEN
[4648]	445	WRITE ( message_string, * ) 'output of "', TRIM( var ), '" requires ocean mode'
[564]	446	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
[298]	447	ENDIF
	448	unit = 'psu'
	449
[3421]	450	CASE ( 'us', 't', 'lwp', 'pra', 'prr', 'z0', 'z0h*' )
[4648]	451	WRITE ( message_string, * ) 'illegal value for data_', 'output: "', TRIM( var ), &
	452	'" is only allowed', 'for horizontal cross section'
[564]	453	CALL message( 'init_masks', 'PA0111', 1, 2, 0, 6, 0 )
[298]	454
[3421]	455	CASE ( 'p', 'theta', 'u', 'v', 'w' )
[298]	456	IF ( TRIM( var ) == 'p' ) unit = 'Pa'
[3421]	457	IF ( TRIM( var ) == 'theta' ) unit = 'K'
[298]	458	IF ( TRIM( var ) == 'u' ) unit = 'm/s'
	459	IF ( TRIM( var ) == 'v' ) unit = 'm/s'
	460	IF ( TRIM( var ) == 'w' ) unit = 'm/s'
	461	CONTINUE
	462
	463	CASE DEFAULT
[3687]	464	!
	465	!-- Allocate arrays for other modules
	466	CALL module_interface_init_masks( var, unit )
[298]	467
	468	IF ( unit == 'illegal' ) THEN
	469	IF ( do_mask_user(mid,1) /= ' ' ) THEN
[4648]	470	WRITE ( message_string, * ) 'illegal value for data_', &
	471	'output_masks or data_output_masks_user: "', &
	472	TRIM( do_mask(mid,i) ), '"'
[3045]	473	CALL message( 'init_masks', 'PA0018', 1, 2, 0, 6, 0 )
[298]	474	ELSE
[4648]	475	WRITE ( message_string, * ) 'illegal value for data_', &
	476	' output_masks : "', TRIM( do_mask(mid,i) ), '"'
[564]	477	CALL message( 'init_masks', 'PA0330', 1, 2, 0, 6, 0 )
[298]	478	ENDIF
	479	ENDIF
	480
	481	END SELECT
	482	!
	483	!-- Set the internal steering parameters appropriately
	484	domask_no(mid,j) = domask_no(mid,j) + 1
	485	domask(mid,j,domask_no(mid,j)) = do_mask(mid,i)
	486	domask_unit(mid,j,domask_no(mid,j)) = unit
	487
	488	IF ( j == 1 ) THEN
	489	!
	490	!-- Check, if variable is already subject to averaging
	491	found = .FALSE.
	492	DO k = 1, doav_n
	493	IF ( TRIM( doav(k) ) == TRIM( var ) ) found = .TRUE.
	494	ENDDO
	495
	496	IF ( .NOT. found ) THEN
	497	doav_n = doav_n + 1
	498	doav(doav_n) = var
	499	ENDIF
	500	ENDIF
	501
	502	i = i + 1
	503
	504	ENDDO ! do_mask(mid,i)
	505	ENDDO ! mid
	506
	507
	508	!
	509	!-- Determine mask locations for each mask
	510	DO mid = 1, masks
	511	!
	512	!-- Set local masks for each subdomain along all three dimensions
	513	CALL set_mask_locations( 1, dx, 'dx', nx, 'nx', nxl, nxr )
	514	CALL set_mask_locations( 2, dy, 'dy', ny, 'ny', nys, nyn )
[3435]	515	IF ( .NOT. mask_surface(mid) ) THEN
	516	CALL set_mask_locations( 3, dz(1), 'dz', nz, 'nz', nzb, nzt )
	517	ELSE
[298]	518	!
[4648]	519	!-- Set vertical mask locations and size in case of terrain-following output
[3435]	520	count = 0
	521	DO WHILE ( mask_k_over_surface(mid, count+1) >= 0 )
	522	m = mask_k_over_surface(mid, count+1)
	523	IF ( m > nz+1 ) THEN
[4648]	524	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) m, ' in mask ', mid, &
	525	' along dimension ', 3, &
	526	' exceeds (nz+1) = ', nz+1
[3435]	527	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
	528	ENDIF
	529	count = count + 1
	530	mask_k(mid,count) = mask_k_over_surface(mid, count)
	531	IF ( count == mask_xyz_dimension ) EXIT
	532	ENDDO
	533	mask_start_l(mid,3) = 1
	534	mask_size(mid,3) = count
	535	mask_size_l(mid,3) = count
	536	ENDIF
	537	!
[4648]	538	!-- Set global masks along all three dimensions (required by define_netcdf_header).
[1804]	539	#if defined( __parallel )
[298]	540	!
[4648]	541	!-- PE0 receives partial arrays from all processors of the respective mask and outputs them. Here
	542	!-- a barrier has to be set, because otherwise "-MPI- FATAL: Remote protocol queue full" may
	543	!-- occur.
[807]	544
[298]	545	CALL MPI_BARRIER( comm2d, ierr )
	546
	547	IF ( myid == 0 ) THEN
	548	!
	549	!-- Local arrays can be relocated directly.
	550	mask_i_global(mid,mask_start_l(mid,1): &
	551	mask_start_l(mid,1)+mask_size_l(mid,1)-1) = &
	552	mask_i(mid,:mask_size_l(mid,1))
	553	mask_j_global(mid,mask_start_l(mid,2): &
	554	mask_start_l(mid,2)+mask_size_l(mid,2)-1) = &
	555	mask_j(mid,:mask_size_l(mid,2))
	556	mask_k_global(mid,mask_start_l(mid,3): &
	557	mask_start_l(mid,3)+mask_size_l(mid,3)-1) = &
	558	mask_k(mid,:mask_size_l(mid,3))
	559	!
	560	!-- Receive data from all other PEs.
	561	DO n = 1, numprocs-1
	562	!
	563	!-- Receive index limits first, then arrays.
	564	!-- Index limits are received in arbitrary order from the PEs.
[4648]	565	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, comm2d, status, ierr )
[298]	566	!
	567	!-- Not all PEs have data for the mask.
	568	IF ( ind(1) /= -9999 ) THEN
	569	sender = status(MPI_SOURCE)
[4648]	570	CALL MPI_RECV( tmp_array(ind(1)), ind(2)-ind(1)+1, MPI_INTEGER, sender, 1, comm2d, &
	571	status, ierr )
[298]	572	mask_i_global(mid,ind(1):ind(2)) = tmp_array(ind(1):ind(2))
[4648]	573	CALL MPI_RECV( tmp_array(ind(3)), ind(4)-ind(3)+1, MPI_INTEGER, sender, 2, comm2d, &
	574	status, ierr )
[298]	575	mask_j_global(mid,ind(3):ind(4)) = tmp_array(ind(3):ind(4))
[4648]	576	CALL MPI_RECV( tmp_array(ind(5)), ind(6)-ind(5)+1, MPI_INTEGER, sender, 3, comm2d, &
	577	status, ierr )
[298]	578	mask_k_global(mid,ind(5):ind(6)) = tmp_array(ind(5):ind(6))
	579	ENDIF
	580	ENDDO
	581
	582	ELSE
	583	!
[4648]	584	!-- If at least part of the mask resides on the PE, send the index limits for the target
	585	!-- array, otherwise send -9999 to PE0.
	586	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
[996]	587	mask_size_l(mid,3) > 0 ) THEN
[298]	588	ind(1) = mask_start_l(mid,1)
	589	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
	590	ind(3) = mask_start_l(mid,2)
	591	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
	592	ind(5) = mask_start_l(mid,3)
	593	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
	594	ELSE
	595	ind(1) = -9999; ind(2) = -9999
	596	ind(3) = -9999; ind(4) = -9999
	597	ind(5) = -9999; ind(6) = -9999
	598	ENDIF
	599	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
	600	!
	601	!-- If applicable, send data to PE0.
	602	IF ( ind(1) /= -9999 ) THEN
	603	tmp_array(:mask_size_l(mid,1)) = mask_i(mid,:mask_size_l(mid,1))
[4648]	604	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,1), MPI_INTEGER, 0, 1, comm2d, ierr )
[298]	605	tmp_array(:mask_size_l(mid,2)) = mask_j(mid,:mask_size_l(mid,2))
[4648]	606	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,2), MPI_INTEGER, 0, 2, comm2d, ierr )
[298]	607	tmp_array(:mask_size_l(mid,3)) = mask_k(mid,:mask_size_l(mid,3))
[4648]	608	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,3), MPI_INTEGER, 0, 3, comm2d, ierr )
[298]	609	ENDIF
	610	ENDIF
	611	!
[4648]	612	!-- A barrier has to be set, because otherwise some PEs may proceed too fast so that PE0 may
	613	!-- receive wrong data on tag 0.
[298]	614	CALL MPI_BARRIER( comm2d, ierr )
[4648]	615
[1031]	616	IF ( netcdf_data_format > 4 ) THEN
[4648]	617
	618	CALL MPI_BCAST( mask_i_global(mid,:), nx+2, MPI_INTEGER, 0, comm2d, ierr )
	619	CALL MPI_BCAST( mask_j_global(mid,:), ny+2, MPI_INTEGER, 0, comm2d, ierr )
	620	CALL MPI_BCAST( mask_k_global(mid,:), nz+2, MPI_INTEGER, 0, comm2d, ierr )
	621
[409]	622	ENDIF
[298]	623
[1804]	624	#else
[298]	625	!
	626	!-- Local arrays can be relocated directly.
	627	mask_i_global(mid,:) = mask_i(mid,:)
	628	mask_j_global(mid,:) = mask_j(mid,:)
	629	mask_k_global(mid,:) = mask_k(mid,:)
	630	#endif
	631	ENDDO ! mid
	632
	633	DEALLOCATE( tmp_array )
	634	!
[4648]	635	!-- Internal mask arrays cannot be deallocated on PE 0 because they are required for header output
	636	!-- on PE 0.
[298]	637	IF ( myid /= 0 ) DEALLOCATE( mask, mask_loop )
	638
	639	CONTAINS
[493]	640
[4648]	641	!--------------------------------------------------------------------------------------------------!
[298]	642	! Description:
	643	! ------------
[1682]	644	!> Set local mask for each subdomain along 'dim' direction.
[4648]	645	!--------------------------------------------------------------------------------------------------!
	646	SUBROUTINE set_mask_locations( dim, dxyz, dxyz_string, nxyz, nxyz_string, lb, ub )
[298]	647
	648	IMPLICIT NONE
	649
[1682]	650	CHARACTER (LEN=2) :: dxyz_string !<
	651	CHARACTER (LEN=2) :: nxyz_string !<
[4648]	652
[1682]	653	INTEGER(iwp) :: count !<
	654	INTEGER(iwp) :: count_l !<
	655	INTEGER(iwp) :: dim !<
	656	INTEGER(iwp) :: m !<
	657	INTEGER(iwp) :: loop_begin !<
	658	INTEGER(iwp) :: loop_end !<
	659	INTEGER(iwp) :: loop_stride !<
	660	INTEGER(iwp) :: lb !<
	661	INTEGER(iwp) :: nxyz !<
	662	INTEGER(iwp) :: ub !<
[4648]	663
[1682]	664	REAL(wp) :: dxyz !<
	665	REAL(wp) :: ddxyz !<
	666	REAL(wp) :: tmp1 !<
	667	REAL(wp) :: tmp2 !<
[298]	668
[4648]	669	count = 0; count_l = 0
	670	ddxyz = 1.0_wp / dxyz
[1353]	671	tmp1 = 0.0_wp
	672	tmp2 = 0.0_wp
[298]	673
[1353]	674	IF ( mask(mid,dim,1) >= 0.0_wp ) THEN
[298]	675	!
[4648]	676	!-- Use predefined mask_* array
[1353]	677	DO WHILE ( mask(mid,dim,count+1) >= 0.0_wp )
[298]	678	count = count + 1
[4648]	679	IF ( dim == 1 .OR. dim == 2 ) THEN
[1353]	680	m = NINT( mask(mid,dim,count) * mask_scale(dim) * ddxyz - 0.5_wp )
[1414]	681	IF ( m < 0 ) m = 0 ! avoid negative values
[298]	682	ELSEIF ( dim == 3 ) THEN
	683	ind_array = &
[595]	684	MINLOC( ABS( mask(mid,dim,count) * mask_scale(dim) - zu ) )
[298]	685	m = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
	686	ENDIF
[1414]	687	IF ( m > (nxyz+1) ) THEN
[4648]	688	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) m, ' in mask ', mid, &
	689	' along dimension ' ,dim, &
	690	' exceeds (' ,nxyz_string, &
	691	'+1) = ', nxyz+1
[564]	692	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
[298]	693	ENDIF
[4648]	694	IF ( ( m >= lb .AND. m <= ub ) .OR. ( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
[298]	695	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
	696	count_l = count_l + 1
	697	IF ( dim == 1 ) THEN
	698	mask_i(mid,count_l) = m
	699	ELSEIF ( dim == 2 ) THEN
	700	mask_j(mid,count_l) = m
	701	ELSEIF ( dim == 3 ) THEN
	702	mask_k(mid,count_l) = m
	703	ENDIF
	704	ENDIF
	705	IF ( count == mask_xyz_dimension ) EXIT
	706	ENDDO
	707	mask_size(mid,dim) = count
	708	mask_size_l(mid,dim) = count_l
	709
	710	ELSE
	711	!
[4648]	712	!-- Use predefined mask_loop_* array, or use the default (all grid points along this
	713	!-- direction)
[1353]	714	IF ( mask_loop(mid,dim,1) < 0.0_wp ) THEN
[298]	715	tmp1 = mask_loop(mid,dim,1)
[1186]	716	mask_loop(mid,dim,1) = zw(nzb) ! lowest level (default)
[298]	717	ENDIF
	718	IF ( dim == 1 .OR. dim == 2 ) THEN
[1353]	719	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
[298]	720	tmp2 = mask_loop(mid,dim,2)
[3512]	721	mask_loop(mid,dim,2) = nxyz*dxyz / mask_scale(dim) ! (default)
[298]	722	ENDIF
	723	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
[1414]	724	> (nxyz+1) * dxyz / mask_scale(dim) ) THEN
[4648]	725	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),5A,I1,A,F9.3)' ) &
	726	'mask_loop(', mid, ',', dim, ',1)=', mask_loop(mid,dim,1), &
	727	' and/or mask_loop(', mid, ',', dim, ',2)=', mask_loop(mid,dim,2), &
	728	' exceed (', nxyz_string,'+1)*',dxyz_string,'/mask_scale(',dim,')=', &
[1414]	729	(nxyz+1)*dxyz/mask_scale(dim)
[564]	730	CALL message( 'init_masks', 'PA0332', 1, 2, 0, 6, 0 )
[298]	731	ENDIF
[4648]	732	loop_begin = NINT( mask_loop(mid,dim,1) * mask_scale(dim) * ddxyz - 0.5_wp )
	733	loop_end = NINT( mask_loop(mid,dim,2) * mask_scale(dim) * ddxyz - 0.5_wp )
	734	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) * ddxyz )
[1414]	735	IF ( loop_begin == -1 ) loop_begin = 0 ! avoid negative values
[298]	736	ELSEIF ( dim == 3 ) THEN
[1353]	737	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
[298]	738	tmp2 = mask_loop(mid,dim,2)
[1414]	739	mask_loop(mid,dim,2) = zu(nz+1) / mask_scale(dim) ! (default)
[298]	740	ENDIF
[4648]	741	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) > zu(nz+1) / mask_scale(dim) ) THEN
	742	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),A,I1,A,F9.3)' ) &
	743	'mask_loop(', mid, ',', dim, ',1)=', mask_loop(mid,dim,1), &
	744	' and/or mask_loop(', mid, ',', dim, ',2)=', mask_loop(mid,dim,2), &
	745	' exceed zu(nz+1)/mask_scale(', dim, ')=',zu(nz+1)/mask_scale(dim)
[564]	746	CALL message( 'init_masks', 'PA0333', 1, 2, 0, 6, 0 )
[298]	747	ENDIF
[4648]	748	ind_array = MINLOC( ABS( mask_loop(mid,dim,1) * mask_scale(dim) - zu ) )
	749	loop_begin = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
	750	ind_array = MINLOC( ABS( mask_loop(mid,dim,2) * mask_scale(dim) - zu ) )
	751	loop_end = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
[298]	752	!
[4648]	753	!-- The following line assumes a constant vertical grid spacing within the vertical mask
	754	!-- range; it fails for vertical grid stretching.
	755	!-- Maybe revise later. Issue warning but continue execution. ABS(...) within the IF
	756	!-- statement is necessary because the default value of dz_stretch_level_start is
	757	!-- -9999999.9_wp.
[303]	758	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) * ddxyz )
	759
[4648]	760	IF ( mask_loop(mid,dim,2) * mask_scale(dim) > ABS( dz_stretch_level_start(1) ) ) THEN
	761	WRITE ( message_string, '(A,I3,A,I1,A,F9.3,A,F8.2,3A)' ) &
	762	'mask_loop(', mid, ',', dim, ',2)=', mask_loop(mid,dim,2), &
	763	' exceeds dz_stretch_level=', dz_stretch_level_start(1), &
	764	'.&Vertical mask locations will not ', &
	765	'match the desired heights within the stretching ', 'region.'
[564]	766	CALL message( 'init_masks', 'PA0334', 0, 1, 0, 6, 0 )
[303]	767	ENDIF
	768
[298]	769	ENDIF
	770	!
	771	!-- If necessary, reset mask_loop(mid,dim,1) and mask_loop(mid,dim,2).
[1353]	772	IF ( tmp1 < 0.0_wp ) mask_loop(mid,dim,1) = tmp1
	773	IF ( tmp2 < 0.0_wp ) mask_loop(mid,dim,2) = tmp2
[298]	774	!
[4648]	775	!-- The default stride +/-1 (every grid point) applies if mask_loop(mid,dim,3) is not
	776	!-- specified (its default is zero).
[298]	777	IF ( loop_stride == 0 ) THEN
	778	IF ( loop_end >= loop_begin ) THEN
	779	loop_stride = 1
	780	ELSE
	781	loop_stride = -1
	782	ENDIF
	783	ENDIF
	784	DO m = loop_begin, loop_end, loop_stride
	785	count = count + 1
[4648]	786	IF ( ( m >= lb .AND. m <= ub ) .OR. ( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
[298]	787	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
	788	count_l = count_l + 1
	789	IF ( dim == 1 ) THEN
	790	mask_i(mid,count_l) = m
	791	ELSEIF ( dim == 2 ) THEN
	792	mask_j(mid,count_l) = m
	793	ELSEIF ( dim == 3 ) THEN
	794	mask_k(mid,count_l) = m
	795	ENDIF
	796	ENDIF
	797	ENDDO
	798	mask_size(mid,dim) = count
	799	mask_size_l(mid,dim) = count_l
[1414]	800
[298]	801	ENDIF
	802
	803	END SUBROUTINE set_mask_locations
	804
	805	END SUBROUTINE init_masks

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