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source: palm/trunk/SOURCE/init_masks.f90 @ 1734

Last change on this file since 1734 was 1683, checked in by knoop, 9 years ago
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[1682]	1	!> @file init_masks.f90
[1036]	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	!
[1310]	16	! Copyright 1997-2014 Leibniz Universitaet Hannover
[1036]	17	!--------------------------------------------------------------------------------!
	18	!
[484]	19	! Current revisions:
[298]	20	! -----------------
[1354]	21	!
[1683]	22	!
[1321]	23	! Former revisions:
	24	! -----------------
	25	! $Id: init_masks.f90 1683 2015-10-07 23:57:51Z raasch $
	26	!
[1683]	27	! 1682 2015-10-07 23:56:08Z knoop
	28	! Code annotations made doxygen readable
	29	!
[1439]	30	! 1438 2014-07-22 14:14:06Z heinze
	31	! +nr, qc, qr
	32	!
[1415]	33	! 1414 2014-05-31 11:19:48Z gronemeier
	34	! Bugfix: first and last grid points as they appear in 3D volume data can now
	35	! be included to masked data output
	36	!
[1354]	37	! 1353 2014-04-08 15:21:23Z heinze
	38	! REAL constants provided with KIND-attribute
	39	!
[1325]	40	! 1324 2014-03-21 09:13:16Z suehring
	41	! Bugfix: ONLY statement for module netcdf_control removed
	42	!
[1321]	43	! 1320 2014-03-20 08:40:49Z raasch
[1320]	44	! ONLY-attribute added to USE-statements,
	45	! kind-parameters added to all INTEGER and REAL declaration statements,
	46	! kinds are defined in new module kinds,
	47	! revision history before 2012 removed,
	48	! comment fields (!:) to be used for variable explanations added to
	49	! all variable declaration statements
[298]	50	!
[1187]	51	! 1186 2013-06-18 06:22:52Z raasch
	52	! bugfix: 0.0 replaced by zu(nzb) as the lowest default height level for masks,
	53	! because a zero value does not work in case of ocean runs
	54	!
[1037]	55	! 1036 2012-10-22 13:43:42Z raasch
	56	! code put under GPL (PALM 3.9)
	57	!
[1033]	58	! 1032 2012-10-21 13:03:21Z letzel
	59	! mask locations determined based on scalar positions
	60	!
[1035]	61	! 1031 2012-10-19 14:35:30Z raasch
	62	! netCDF4 without parallel file support implemented
	63	!
[997]	64	! 996 2012-09-07 10:41:47Z raasch
	65	! little reformatting
	66	!
[979]	67	! 978 2012-08-09 08:28:32Z fricke
	68	! +z0h*
	69	!
[810]	70	! 809 2012-01-30 13:32:58Z maronga
	71	! Bugfix: replaced .AND. and .NOT. with && and ! in the preprocessor directives
	72	!
[808]	73	! 807 2012-01-25 11:53:51Z maronga
	74	! New cpp directive "__check" implemented which is used by check_namelist_files
	75	!
[449]	76	! 410 2009-12-04 17:05:40Z letzel
	77	! Initial revision
[298]	78	!
[449]	79	!
[298]	80	! Description:
	81	! ------------
[1682]	82	!> Initialize masked data output
[298]	83	!------------------------------------------------------------------------------!
[1682]	84	SUBROUTINE init_masks
[298]	85
[1320]	86	USE arrays_3d, &
	87	ONLY: zu, zw
	88
	89	USE control_parameters, &
	90	ONLY: constant_diffusion, cloud_droplets, cloud_physics, &
	91	data_output_masks, data_output_masks_user, &
	92	doav, doav_n, domask, domask_no, dz, dz_stretch_level, humidity,&
[1438]	93	icloud_scheme, mask, masks, mask_scale, mask_i, &
[1320]	94	mask_i_global, mask_j, mask_j_global, mask_k, mask_k_global, &
	95	mask_loop, mask_size, mask_size_l, mask_start_l, mask_x, &
	96	mask_x_loop, mask_xyz_dimension, mask_y, mask_y_loop, mask_z, &
	97	mask_z_loop, max_masks, message_string, mid, &
[1438]	98	netcdf_data_format, passive_scalar, precipitation, ocean
[1320]	99
	100	USE grid_variables, &
	101	ONLY: dx, dy
	102
	103	USE indices, &
	104	ONLY: nx, nxl, nxr, ny, nyn, nys, nz, nzb, nzt
	105
	106	USE kinds
	107
[1324]	108	USE netcdf_control
[1320]	109
	110	USE particle_attributes, &
	111	ONLY: particle_advection
	112
[298]	113	USE pegrid
	114
	115	IMPLICIT NONE
	116
[1682]	117	CHARACTER (LEN=6) :: var !<
	118	CHARACTER (LEN=7) :: unit !<
[1320]	119
[1682]	120	CHARACTER (LEN=10), DIMENSION(max_masks,100) :: do_mask !<
	121	CHARACTER (LEN=10), DIMENSION(max_masks,100) :: do_mask_user !<
[298]	122
[1682]	123	INTEGER(iwp) :: i !<
	124	INTEGER(iwp) :: ilen !<
	125	INTEGER(iwp) :: ind(6) !<
	126	INTEGER(iwp) :: ind_array(1) !<
	127	INTEGER(iwp) :: j !<
	128	INTEGER(iwp) :: k !<
	129	INTEGER(iwp) :: n !<
	130	INTEGER(iwp) :: sender !<
[1320]	131
[1682]	132	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: tmp_array !<
[298]	133
[1682]	134	LOGICAL :: found !<
[298]	135	!
	136	!-- Allocation and initialization
[1414]	137	ALLOCATE( tmp_array( MAX(nx,ny,nz)+2 ) )
[298]	138
[1414]	139	ALLOCATE( mask_i(max_masks,nxr-nxl+2), &
	140	mask_j(max_masks,nyn-nys+2), &
	141	mask_k(max_masks,nzt-nzb+2) )
[298]	142	!
	143	!-- internal mask arrays ("mask,dimension,selection")
	144	ALLOCATE( mask(max_masks,3,mask_xyz_dimension), &
	145	mask_loop(max_masks,3,3) )
[493]	146
[298]	147	!
[493]	148	!-- Parallel mask output not yet tested
[1031]	149	IF ( netcdf_data_format > 4 ) THEN
[996]	150	message_string = 'netCDF file formats '// &
	151	'3 (netCDF 4) and 4 (netCDF 4 Classic model)'// &
[493]	152	'&are currently not supported (not yet tested).'
[564]	153	CALL message( 'init_masks', 'PA0328', 1, 2, 0, 6, 0 )
[298]	154	ENDIF
[553]	155
[298]	156	!
	157	!-- Store data output parameters for masked data output in few shared arrays
[996]	158	DO mid = 1, masks
[564]	159
[553]	160	do_mask (mid,:) = data_output_masks(mid,:)
	161	do_mask_user(mid,:) = data_output_masks_user(mid,:)
	162	mask (mid,1,:) = mask_x(mid,:)
	163	mask (mid,2,:) = mask_y(mid,:)
	164	mask (mid,3,:) = mask_z(mid,:)
[564]	165
[1353]	166	IF ( mask_x_loop(mid,1) == -1.0_wp .AND. mask_x_loop(mid,2) == -1.0_wp&
	167	.AND. mask_x_loop(mid,3) == -1.0_wp ) THEN
	168	mask_loop(mid,1,1:2) = -1.0_wp
	169	mask_loop(mid,1,3) = 0.0_wp
[564]	170	ELSE
	171	mask_loop(mid,1,:) = mask_x_loop(mid,:)
	172	ENDIF
[1353]	173	IF ( mask_y_loop(mid,1) == -1.0_wp .AND. mask_y_loop(mid,2) == -1.0_wp&
	174	.AND. mask_y_loop(mid,3) == -1.0_wp ) THEN
	175	mask_loop(mid,2,1:2) = -1.0_wp
	176	mask_loop(mid,2,3) = 0.0_wp
[564]	177	ELSE
	178	mask_loop(mid,2,:) = mask_y_loop(mid,:)
	179	ENDIF
[1353]	180	IF ( mask_z_loop(mid,1) == -1.0_wp .AND. mask_z_loop(mid,2) == -1.0_wp&
	181	.AND. mask_z_loop(mid,3) == -1.0_wp ) THEN
	182	mask_loop(mid,3,1:2) = -1.0_wp
	183	mask_loop(mid,3,3) = 0.0_wp
[564]	184	ELSE
	185	mask_loop(mid,3,:) = mask_z_loop(mid,:)
	186	ENDIF
	187
[553]	188	ENDDO
	189
[298]	190	mask_i = -1; mask_j = -1; mask_k = -1
[553]	191
[298]	192	!
	193	!-- Global arrays are required by define_netcdf_header.
[1031]	194	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
[1414]	195	ALLOCATE( mask_i_global(max_masks,nx+2), &
	196	mask_j_global(max_masks,ny+2), &
	197	mask_k_global(max_masks,nz+2) )
[298]	198	mask_i_global = -1; mask_j_global = -1; mask_k_global = -1
	199	ENDIF
	200
	201	!
	202	!-- Determine variable names for each mask
	203	DO mid = 1, masks
	204	!
	205	!-- Append user-defined data output variables to the standard data output
	206	IF ( do_mask_user(mid,1) /= ' ' ) THEN
	207	i = 1
	208	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
	209	i = i + 1
	210	ENDDO
	211	j = 1
	212	DO WHILE ( do_mask_user(mid,j) /= ' ' .AND. j <= 100 )
	213	IF ( i > 100 ) THEN
	214	WRITE ( message_string, * ) 'number of output quantitities ', &
	215	'given by data_output_mask and data_output_mask_user ', &
	216	'exceeds the limit of 100'
[564]	217	CALL message( 'init_masks', 'PA0329', 1, 2, 0, 6, 0 )
[298]	218	ENDIF
	219	do_mask(mid,i) = do_mask_user(mid,j)
	220	i = i + 1
	221	j = j + 1
	222	ENDDO
	223	ENDIF
	224
	225	!
	226	!-- Check and set steering parameters for mask data output and averaging
	227	i = 1
[996]	228	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
[298]	229	!
	230	!-- Check for data averaging
	231	ilen = LEN_TRIM( do_mask(mid,i) )
	232	j = 0 ! no data averaging
	233	IF ( ilen > 3 ) THEN
	234	IF ( do_mask(mid,i)(ilen-2:ilen) == '_av' ) THEN
	235	j = 1 ! data averaging
	236	do_mask(mid,i) = do_mask(mid,i)(1:ilen-3)
	237	ENDIF
	238	ENDIF
	239	var = TRIM( do_mask(mid,i) )
	240	!
	241	!-- Check for allowed value and set units
	242	SELECT CASE ( TRIM( var ) )
	243
	244	CASE ( 'e' )
	245	IF ( constant_diffusion ) THEN
	246	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	247	'" requires constant_diffusion = .FALSE.'
[564]	248	CALL message( 'init_masks', 'PA0103', 1, 2, 0, 6, 0 )
[298]	249	ENDIF
	250	unit = 'm2/s2'
	251
[771]	252	CASE ( 'lpt' )
	253	IF ( .NOT. cloud_physics ) THEN
	254	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	255	'" requires cloud_physics = .TRUE.'
[773]	256	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
[771]	257	ENDIF
	258	unit = 'K'
	259
[1438]	260	CASE ( 'nr' )
	261	IF ( .NOT. cloud_physics ) THEN
	262	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	263	'" requires cloud_physics = .TRUE.'
	264	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
	265	ELSEIF ( icloud_scheme /= 0 ) THEN
	266	message_string = 'output of "' // TRIM( var ) // '" requi' // &
	267	'res cloud_scheme = seifert_beheng'
	268	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
	269	ELSEIF ( .NOT. precipitation ) THEN
	270	message_string = 'output of "' // TRIM( var ) // '" requi' // &
	271	'res precipitation = .TRUE.'
	272	CALL message( 'check_parameters', 'PA0112', 1, 2, 0, 6, 0 )
	273	ENDIF
	274	unit = '1/m3'
	275
[298]	276	CASE ( 'pc', 'pr' )
	277	IF ( .NOT. particle_advection ) THEN
	278	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	279	'" requires a "particles_par"-NAMELIST in the ', &
	280	'parameter file (PARIN)'
[564]	281	CALL message( 'init_masks', 'PA0104', 1, 2, 0, 6, 0 )
[298]	282	ENDIF
	283	IF ( TRIM( var ) == 'pc' ) unit = 'number'
	284	IF ( TRIM( var ) == 'pr' ) unit = 'm'
	285
	286	CASE ( 'q', 'vpt' )
	287	IF ( .NOT. humidity ) THEN
	288	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	289	'" requires humidity = .TRUE.'
[564]	290	CALL message( 'init_masks', 'PA0105', 1, 2, 0, 6, 0 )
[298]	291	ENDIF
	292	IF ( TRIM( var ) == 'q' ) unit = 'kg/kg'
	293	IF ( TRIM( var ) == 'vpt' ) unit = 'K'
	294
[1438]	295	CASE ( 'qc' )
	296	IF ( .NOT. cloud_physics ) THEN
	297	message_string = 'output of "' // TRIM( var ) // '" requi' // &
	298	'res cloud_physics = .TRUE.'
	299	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
	300	ELSEIF ( icloud_scheme /= 0 ) THEN
	301	message_string = 'output of "' // TRIM( var ) // '" requi' // &
	302	'res cloud_scheme = seifert_beheng'
	303	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
	304	ENDIF
	305	unit = 'kg/kg'
	306
[298]	307	CASE ( 'ql' )
	308	IF ( .NOT. ( cloud_physics .OR. cloud_droplets ) ) THEN
	309	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	310	'" requires cloud_physics = .TRUE. or cloud_droplets', &
	311	' = .TRUE.'
[564]	312	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
[298]	313	ENDIF
	314	unit = 'kg/kg'
	315
	316	CASE ( 'ql_c', 'ql_v', 'ql_vp' )
	317	IF ( .NOT. cloud_droplets ) THEN
	318	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	319	'" requires cloud_droplets = .TRUE.'
[564]	320	CALL message( 'init_masks', 'PA0107', 1, 2, 0, 6, 0 )
[298]	321	ENDIF
	322	IF ( TRIM( var ) == 'ql_c' ) unit = 'kg/kg'
	323	IF ( TRIM( var ) == 'ql_v' ) unit = 'm3'
	324	IF ( TRIM( var ) == 'ql_vp' ) unit = 'none'
	325
	326	CASE ( 'qv' )
	327	IF ( .NOT. cloud_physics ) THEN
	328	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	329	'" requires cloud_physics = .TRUE.'
[564]	330	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
[298]	331	ENDIF
	332	unit = 'kg/kg'
	333
[1438]	334	CASE ( 'qr' )
	335	IF ( .NOT. cloud_physics ) THEN
	336	message_string = 'output of "' // TRIM( var ) // '" requi' // &
	337	'res cloud_physics = .TRUE.'
	338	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
	339	ELSEIF ( icloud_scheme /= 0 ) THEN
	340	message_string = 'output of "' // TRIM( var ) // '" requi' // &
	341	'res cloud_scheme = seifert_beheng'
	342	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
	343	ELSEIF ( .NOT. precipitation ) THEN
	344	message_string = 'output of "' // TRIM( var ) // '" requi' // &
	345	'res precipitation = .TRUE.'
	346	CALL message( 'check_parameters', 'PA0112', 1, 2, 0, 6, 0 )
	347	ENDIF
	348	unit = 'kg/kg'
	349
[298]	350	CASE ( 'rho' )
	351	IF ( .NOT. ocean ) THEN
	352	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	353	'" requires ocean = .TRUE.'
[564]	354	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
[298]	355	ENDIF
	356	unit = 'kg/m3'
	357
	358	CASE ( 's' )
	359	IF ( .NOT. passive_scalar ) THEN
	360	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	361	'" requires passive_scalar = .TRUE.'
[564]	362	CALL message( 'init_masks', 'PA0110', 1, 2, 0, 6, 0 )
[298]	363	ENDIF
	364	unit = 'conc'
	365
	366	CASE ( 'sa' )
	367	IF ( .NOT. ocean ) THEN
	368	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	369	'" requires ocean = .TRUE.'
[564]	370	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
[298]	371	ENDIF
	372	unit = 'psu'
	373
[978]	374	CASE ( 'u', 't', 'lwp', 'pra', 'prr', 'z0', 'z0h*' )
[298]	375	WRITE ( message_string, * ) 'illegal value for data_',&
	376	'output: "', TRIM( var ), '" is only allowed', &
	377	'for horizontal cross section'
[564]	378	CALL message( 'init_masks', 'PA0111', 1, 2, 0, 6, 0 )
[298]	379
	380	CASE ( 'p', 'pt', 'u', 'v', 'w' )
	381	IF ( TRIM( var ) == 'p' ) unit = 'Pa'
	382	IF ( TRIM( var ) == 'pt' ) unit = 'K'
	383	IF ( TRIM( var ) == 'u' ) unit = 'm/s'
	384	IF ( TRIM( var ) == 'v' ) unit = 'm/s'
	385	IF ( TRIM( var ) == 'w' ) unit = 'm/s'
	386	CONTINUE
	387
	388	CASE DEFAULT
	389	CALL user_check_data_output( var, unit )
	390
	391	IF ( unit == 'illegal' ) THEN
	392	IF ( do_mask_user(mid,1) /= ' ' ) THEN
	393	WRITE ( message_string, * ) 'illegal value for data_',&
	394	'output or data_output_user: "', &
	395	TRIM( do_mask(mid,i) ), '"'
[564]	396	CALL message( 'init_masks', 'PA0114', 1, 2, 0, 6, 0 )
[298]	397	ELSE
	398	WRITE ( message_string, * ) 'illegal value for data_',&
	399	'output: "', TRIM( do_mask(mid,i) ), '"'
[564]	400	CALL message( 'init_masks', 'PA0330', 1, 2, 0, 6, 0 )
[298]	401	ENDIF
	402	ENDIF
	403
	404	END SELECT
	405	!
	406	!-- Set the internal steering parameters appropriately
	407	domask_no(mid,j) = domask_no(mid,j) + 1
	408	domask(mid,j,domask_no(mid,j)) = do_mask(mid,i)
	409	domask_unit(mid,j,domask_no(mid,j)) = unit
	410
	411	IF ( j == 1 ) THEN
	412	!
	413	!-- Check, if variable is already subject to averaging
	414	found = .FALSE.
	415	DO k = 1, doav_n
	416	IF ( TRIM( doav(k) ) == TRIM( var ) ) found = .TRUE.
	417	ENDDO
	418
	419	IF ( .NOT. found ) THEN
	420	doav_n = doav_n + 1
	421	doav(doav_n) = var
	422	ENDIF
	423	ENDIF
	424
	425	i = i + 1
	426
	427	ENDDO ! do_mask(mid,i)
	428	ENDDO ! mid
	429
	430
	431	!
	432	!-- Determine mask locations for each mask
	433	DO mid = 1, masks
	434	!
	435	!-- Set local masks for each subdomain along all three dimensions
	436	CALL set_mask_locations( 1, dx, 'dx', nx, 'nx', nxl, nxr )
	437	CALL set_mask_locations( 2, dy, 'dy', ny, 'ny', nys, nyn )
	438	CALL set_mask_locations( 3, dz, 'dz', nz, 'nz', nzb, nzt )
	439	!
	440	!-- Set global masks along all three dimensions (required by
	441	!-- define_netcdf_header).
[809]	442	#if defined( __parallel ) && ! defined ( __check )
[298]	443	!
	444	!-- PE0 receives partial arrays from all processors of the respective mask
	445	!-- and outputs them. Here a barrier has to be set, because otherwise
	446	!-- "-MPI- FATAL: Remote protocol queue full" may occur.
[807]	447
[298]	448	CALL MPI_BARRIER( comm2d, ierr )
	449
	450	IF ( myid == 0 ) THEN
	451	!
	452	!-- Local arrays can be relocated directly.
	453	mask_i_global(mid,mask_start_l(mid,1): &
	454	mask_start_l(mid,1)+mask_size_l(mid,1)-1) = &
	455	mask_i(mid,:mask_size_l(mid,1))
	456	mask_j_global(mid,mask_start_l(mid,2): &
	457	mask_start_l(mid,2)+mask_size_l(mid,2)-1) = &
	458	mask_j(mid,:mask_size_l(mid,2))
	459	mask_k_global(mid,mask_start_l(mid,3): &
	460	mask_start_l(mid,3)+mask_size_l(mid,3)-1) = &
	461	mask_k(mid,:mask_size_l(mid,3))
	462	!
	463	!-- Receive data from all other PEs.
	464	DO n = 1, numprocs-1
	465	!
	466	!-- Receive index limits first, then arrays.
	467	!-- Index limits are received in arbitrary order from the PEs.
	468	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, &
	469	comm2d, status, ierr )
	470	!
	471	!-- Not all PEs have data for the mask.
	472	IF ( ind(1) /= -9999 ) THEN
	473	sender = status(MPI_SOURCE)
	474	CALL MPI_RECV( tmp_array(ind(1)), ind(2)-ind(1)+1, &
[363]	475	MPI_INTEGER, sender, 1, comm2d, status, ierr )
[298]	476	mask_i_global(mid,ind(1):ind(2)) = tmp_array(ind(1):ind(2))
	477	CALL MPI_RECV( tmp_array(ind(3)), ind(4)-ind(3)+1, &
[363]	478	MPI_INTEGER, sender, 2, comm2d, status, ierr )
[298]	479	mask_j_global(mid,ind(3):ind(4)) = tmp_array(ind(3):ind(4))
	480	CALL MPI_RECV( tmp_array(ind(5)), ind(6)-ind(5)+1, &
[363]	481	MPI_INTEGER, sender, 3, comm2d, status, ierr )
[298]	482	mask_k_global(mid,ind(5):ind(6)) = tmp_array(ind(5):ind(6))
	483	ENDIF
	484	ENDDO
	485
	486	ELSE
	487	!
	488	!-- If at least part of the mask resides on the PE, send the index limits
	489	!-- for the target array, otherwise send -9999 to PE0.
[996]	490	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
	491	mask_size_l(mid,3) > 0 ) THEN
[298]	492	ind(1) = mask_start_l(mid,1)
	493	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
	494	ind(3) = mask_start_l(mid,2)
	495	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
	496	ind(5) = mask_start_l(mid,3)
	497	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
	498	ELSE
	499	ind(1) = -9999; ind(2) = -9999
	500	ind(3) = -9999; ind(4) = -9999
	501	ind(5) = -9999; ind(6) = -9999
	502	ENDIF
	503	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
	504	!
	505	!-- If applicable, send data to PE0.
	506	IF ( ind(1) /= -9999 ) THEN
	507	tmp_array(:mask_size_l(mid,1)) = mask_i(mid,:mask_size_l(mid,1))
	508	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,1), &
[363]	509	MPI_INTEGER, 0, 1, comm2d, ierr )
[298]	510	tmp_array(:mask_size_l(mid,2)) = mask_j(mid,:mask_size_l(mid,2))
	511	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,2), &
[363]	512	MPI_INTEGER, 0, 2, comm2d, ierr )
[298]	513	tmp_array(:mask_size_l(mid,3)) = mask_k(mid,:mask_size_l(mid,3))
	514	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,3), &
[363]	515	MPI_INTEGER, 0, 3, comm2d, ierr )
[298]	516	ENDIF
	517	ENDIF
	518	!
	519	!-- A barrier has to be set, because otherwise some PEs may proceed too fast
	520	!-- so that PE0 may receive wrong data on tag 0.
	521	CALL MPI_BARRIER( comm2d, ierr )
[409]	522
[1031]	523	IF ( netcdf_data_format > 4 ) THEN
[409]	524
[1414]	525	CALL MPI_BCAST( mask_i_global(mid,:), nx+2, MPI_INTEGER, 0, comm2d, &
[493]	526	ierr )
[1414]	527	CALL MPI_BCAST( mask_j_global(mid,:), ny+2, MPI_INTEGER, 0, comm2d, &
[493]	528	ierr )
[1414]	529	CALL MPI_BCAST( mask_k_global(mid,:), nz+2, MPI_INTEGER, 0, comm2d, &
[493]	530	ierr )
[1682]	531
[409]	532	ENDIF
[298]	533
[809]	534	#elif ! defined ( __parallel )
[298]	535	!
	536	!-- Local arrays can be relocated directly.
	537	mask_i_global(mid,:) = mask_i(mid,:)
	538	mask_j_global(mid,:) = mask_j(mid,:)
	539	mask_k_global(mid,:) = mask_k(mid,:)
	540	#endif
	541	ENDDO ! mid
	542
	543	DEALLOCATE( tmp_array )
	544	!
	545	!-- Internal mask arrays cannot be deallocated on PE 0 because they are
	546	!-- required for header output on PE 0.
	547	IF ( myid /= 0 ) DEALLOCATE( mask, mask_loop )
	548
	549	CONTAINS
[493]	550
[298]	551	!------------------------------------------------------------------------------!
	552	! Description:
	553	! ------------
[1682]	554	!> Set local mask for each subdomain along 'dim' direction.
[298]	555	!------------------------------------------------------------------------------!
[1682]	556	SUBROUTINE set_mask_locations( dim, dxyz, dxyz_string, nxyz, nxyz_string, &
	557	lb, ub )
[298]	558
	559	IMPLICIT NONE
	560
[1682]	561	CHARACTER (LEN=2) :: dxyz_string !<
	562	CHARACTER (LEN=2) :: nxyz_string !<
[1320]	563
[1682]	564	INTEGER(iwp) :: count !<
	565	INTEGER(iwp) :: count_l !<
	566	INTEGER(iwp) :: dim !<
	567	INTEGER(iwp) :: m !<
	568	INTEGER(iwp) :: loop_begin !<
	569	INTEGER(iwp) :: loop_end !<
	570	INTEGER(iwp) :: loop_stride !<
	571	INTEGER(iwp) :: lb !<
	572	INTEGER(iwp) :: nxyz !<
	573	INTEGER(iwp) :: ub !<
[1320]	574
[1682]	575	REAL(wp) :: dxyz !<
	576	REAL(wp) :: ddxyz !<
	577	REAL(wp) :: tmp1 !<
	578	REAL(wp) :: tmp2 !<
[298]	579
[1353]	580	count = 0; count_l = 0
	581	ddxyz = 1.0_wp / dxyz
	582	tmp1 = 0.0_wp
	583	tmp2 = 0.0_wp
[298]	584
[1353]	585	IF ( mask(mid,dim,1) >= 0.0_wp ) THEN
[298]	586	!
	587	!-- use predefined mask_* array
[1353]	588	DO WHILE ( mask(mid,dim,count+1) >= 0.0_wp )
[298]	589	count = count + 1
	590	IF ( dim == 1 .OR. dim == 2 ) THEN
[1353]	591	m = NINT( mask(mid,dim,count) * mask_scale(dim) * ddxyz - 0.5_wp )
[1414]	592	IF ( m < 0 ) m = 0 ! avoid negative values
[298]	593	ELSEIF ( dim == 3 ) THEN
	594	ind_array = &
[595]	595	MINLOC( ABS( mask(mid,dim,count) * mask_scale(dim) - zu ) )
[298]	596	m = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
	597	ENDIF
[1414]	598	IF ( m > (nxyz+1) ) THEN
[303]	599	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
	600	m,' in mask ',mid,' along dimension ',dim, &
[1414]	601	' exceeds (',nxyz_string,'+1) = ',nxyz+1
[564]	602	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
[298]	603	ENDIF
[1414]	604	IF ( ( m >= lb .AND. m <= ub ) .OR. &
	605	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
[298]	606	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
	607	count_l = count_l + 1
	608	IF ( dim == 1 ) THEN
	609	mask_i(mid,count_l) = m
	610	ELSEIF ( dim == 2 ) THEN
	611	mask_j(mid,count_l) = m
	612	ELSEIF ( dim == 3 ) THEN
	613	mask_k(mid,count_l) = m
	614	ENDIF
	615	ENDIF
	616	IF ( count == mask_xyz_dimension ) EXIT
	617	ENDDO
	618	mask_size(mid,dim) = count
	619	mask_size_l(mid,dim) = count_l
	620
	621	ELSE
	622	!
	623	!-- use predefined mask_loop_* array, or use the default (all grid points
	624	!-- along this direction)
[1353]	625	IF ( mask_loop(mid,dim,1) < 0.0_wp ) THEN
[298]	626	tmp1 = mask_loop(mid,dim,1)
[1186]	627	mask_loop(mid,dim,1) = zw(nzb) ! lowest level (default)
[298]	628	ENDIF
	629	IF ( dim == 1 .OR. dim == 2 ) THEN
[1353]	630	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
[298]	631	tmp2 = mask_loop(mid,dim,2)
[1414]	632	mask_loop(mid,dim,2) = (nxyz+1)*dxyz / mask_scale(dim) ! (default)
[298]	633	ENDIF
	634	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
[1414]	635	> (nxyz+1) * dxyz / mask_scale(dim) ) THEN
[303]	636	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),5A,I1,A,F9.3)' ) &
	637	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
	638	' and/or mask_loop(',mid,',',dim,',2)=', &
[1414]	639	mask_loop(mid,dim,2),'&exceed (', &
	640	nxyz_string,'+1)*',dxyz_string,'/mask_scale(',dim,')=', &
	641	(nxyz+1)*dxyz/mask_scale(dim)
[564]	642	CALL message( 'init_masks', 'PA0332', 1, 2, 0, 6, 0 )
[298]	643	ENDIF
[1032]	644	loop_begin = NINT( mask_loop(mid,dim,1) * mask_scale(dim) &
[1353]	645	* ddxyz - 0.5_wp )
[1032]	646	loop_end = NINT( mask_loop(mid,dim,2) * mask_scale(dim) &
[1353]	647	* ddxyz - 0.5_wp )
[1032]	648	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) &
	649	* ddxyz )
[1414]	650	IF ( loop_begin == -1 ) loop_begin = 0 ! avoid negative values
[298]	651	ELSEIF ( dim == 3 ) THEN
[1353]	652	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
[298]	653	tmp2 = mask_loop(mid,dim,2)
[1414]	654	mask_loop(mid,dim,2) = zu(nz+1) / mask_scale(dim) ! (default)
[298]	655	ENDIF
	656	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
[1414]	657	> zu(nz+1) / mask_scale(dim) ) THEN
[303]	658	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),A,I1,A,F9.3)' ) &
	659	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
	660	' and/or mask_loop(',mid,',',dim,',2)=', &
[1414]	661	mask_loop(mid,dim,2),'&exceed zu(nz+1)/mask_scale(',dim, &
	662	')=',zu(nz+1)/mask_scale(dim)
[564]	663	CALL message( 'init_masks', 'PA0333', 1, 2, 0, 6, 0 )
[298]	664	ENDIF
[303]	665	ind_array = &
[595]	666	MINLOC( ABS( mask_loop(mid,dim,1) * mask_scale(dim) - zu ) )
[298]	667	loop_begin = &
[303]	668	ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
	669	ind_array = &
[595]	670	MINLOC( ABS( mask_loop(mid,dim,2) * mask_scale(dim) - zu ) )
[298]	671	loop_end = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
	672	!
[303]	673	!-- The following line assumes a constant vertical grid spacing within
	674	!-- the vertical mask range; it fails for vertical grid stretching.
	675	!-- Maybe revise later. Issue warning but continue execution.
	676	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) * ddxyz )
	677
	678	IF ( mask_loop(mid,dim,2) * mask_scale(dim) > dz_stretch_level ) &
	679	THEN
[557]	680	WRITE ( message_string, '(A,I3,A,I1,A,F9.3,A,F8.2,3A)' ) &
	681	'mask_loop(',mid,',',dim,',2)=', mask_loop(mid,dim,2),&
[303]	682	' exceeds dz_stretch_level=',dz_stretch_level, &
	683	'.&Vertical mask locations will not ', &
	684	'match the desired heights&within the stretching ', &
	685	'region. Recommendation: use mask instead of mask_loop.'
[564]	686	CALL message( 'init_masks', 'PA0334', 0, 1, 0, 6, 0 )
[303]	687	ENDIF
	688
[298]	689	ENDIF
	690	!
	691	!-- If necessary, reset mask_loop(mid,dim,1) and mask_loop(mid,dim,2).
[1353]	692	IF ( tmp1 < 0.0_wp ) mask_loop(mid,dim,1) = tmp1
	693	IF ( tmp2 < 0.0_wp ) mask_loop(mid,dim,2) = tmp2
[298]	694	!
	695	!-- The default stride +/-1 (every grid point) applies if
	696	!-- mask_loop(mid,dim,3) is not specified (its default is zero).
	697	IF ( loop_stride == 0 ) THEN
	698	IF ( loop_end >= loop_begin ) THEN
	699	loop_stride = 1
	700	ELSE
	701	loop_stride = -1
	702	ENDIF
	703	ENDIF
	704	DO m = loop_begin, loop_end, loop_stride
	705	count = count + 1
[1414]	706	IF ( ( m >= lb .AND. m <= ub ) .OR. &
	707	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
[298]	708	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
	709	count_l = count_l + 1
	710	IF ( dim == 1 ) THEN
	711	mask_i(mid,count_l) = m
	712	ELSEIF ( dim == 2 ) THEN
	713	mask_j(mid,count_l) = m
	714	ELSEIF ( dim == 3 ) THEN
	715	mask_k(mid,count_l) = m
	716	ENDIF
	717	ENDIF
	718	ENDDO
	719	mask_size(mid,dim) = count
	720	mask_size_l(mid,dim) = count_l
[1414]	721
[298]	722	ENDIF
	723
	724	END SUBROUTINE set_mask_locations
	725
	726	END SUBROUTINE init_masks

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