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source: palm/trunk/SOURCE/init_masks.f90 @ 4545

Last change on this file since 4545 was 4521, checked in by schwenkel, 5 years ago
add error number
Property svn:keywords set to `Id`
File size: 32.6 KB

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[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	!
[4360]	17	! Copyright 1997-2020 Leibniz Universitaet Hannover
[2000]	18	!------------------------------------------------------------------------------!
[1036]	19	!
[484]	20	! Current revisions:
[298]	21	! -----------------
[1805]	22	!
[3589]	23	!
[1321]	24	! Former revisions:
	25	! -----------------
	26	! $Id: init_masks.f90 4521 2020-05-06 11:39:49Z schwenkel $
[4521]	27	! Rename variable
	28	!
	29	! 4502 2020-04-17 16:14:16Z schwenkel
[4502]	30	! Implementation of ice microphysics
	31	!
	32	! 4444 2020-03-05 15:59:50Z raasch
[4444]	33	! bugfix: cpp-directives for serial mode added
	34	!
	35	! 4360 2020-01-07 11:25:50Z suehring
[4182]	36	! Corrected "Former revisions" section
	37	!
	38	! 4069 2019-07-01 14:05:51Z Giersch
[4069]	39	! Masked output running index mid has been introduced as a local variable to
	40	! avoid runtime error (Loop variable has been modified) in time_integration
	41	!
	42	! 3766 2019-02-26 16:23:41Z raasch
[3665]	43	! unused variables removed
	44	!
[3766]	45	! 3687 2019-01-22 10:42:06Z knoop
	46	! unused variables removed
	47	!
[3665]	48	! 3655 2019-01-07 16:51:22Z knoop
[3589]	49	! Move the control parameter "salsa" from salsa_mod to control_parameters
	50	! (M. Kurppa)
[2716]	51	!
[4182]	52	! 410 2009-12-04 17:05:40Z letzel
	53	! Initial revision
	54	!
	55	!
[298]	56	! Description:
	57	! ------------
[1682]	58	!> Initialize masked data output
[298]	59	!------------------------------------------------------------------------------!
[1682]	60	SUBROUTINE init_masks
[298]	61
[1320]	62	USE arrays_3d, &
	63	ONLY: zu, zw
	64
[3435]	65	USE bulk_cloud_model_mod, &
[4502]	66	ONLY: bulk_cloud_model, microphysics_morrison, microphysics_seifert, &
[4521]	67	microphysics_ice_phase
[3435]	68
[1320]	69	USE control_parameters, &
[3766]	70	ONLY: constant_diffusion, cloud_droplets, &
[1320]	71	data_output_masks, data_output_masks_user, &
[3065]	72	doav, doav_n, domask, domask_no, dz, dz_stretch_level_start, &
	73	humidity, mask, masks, mask_scale, mask_i, &
[1320]	74	mask_i_global, mask_j, mask_j_global, mask_k, mask_k_global, &
[3435]	75	mask_k_over_surface, &
	76	mask_loop, mask_size, mask_size_l, mask_start_l, &
	77	mask_surface, mask_x, &
[1320]	78	mask_x_loop, mask_xyz_dimension, mask_y, mask_y_loop, mask_z, &
[4069]	79	mask_z_loop, max_masks, message_string, &
[3766]	80	passive_scalar, ocean_mode, varnamelength
[1320]	81
	82	USE grid_variables, &
	83	ONLY: dx, dy
	84
	85	USE indices, &
	86	ONLY: nx, nxl, nxr, ny, nyn, nys, nz, nzb, nzt
	87
	88	USE kinds
	89
[3687]	90	USE module_interface, &
	91	ONLY: module_interface_init_masks
	92
[1783]	93	USE netcdf_interface, &
	94	ONLY: domask_unit, netcdf_data_format
[1320]	95
	96	USE particle_attributes, &
	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
[1320]	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
[1320]	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	!
[2344]	128	!-- Initial values are explicitly set here due to a bug in the Cray compiler
	129	!-- in case of assignments of initial values in declaration statements for
	130	!-- arrays with more than 9999 elements (appears with -eD only)
	131	domask = ' '
	132
	133	!
[298]	134	!-- Allocation and initialization
[1414]	135	ALLOCATE( tmp_array( MAX(nx,ny,nz)+2 ) )
[298]	136
[1414]	137	ALLOCATE( mask_i(max_masks,nxr-nxl+2), &
	138	mask_j(max_masks,nyn-nys+2), &
	139	mask_k(max_masks,nzt-nzb+2) )
[298]	140	!
	141	!-- internal mask arrays ("mask,dimension,selection")
	142	ALLOCATE( mask(max_masks,3,mask_xyz_dimension), &
	143	mask_loop(max_masks,3,3) )
[493]	144
[298]	145	!
[3045]	146	!-- Parallel mask output not yet supported. In check_parameters data format
	147	!-- is restricted and is switched back to non-parallel output. Therefore the
	148	!-- following error can not occur at the moment.
[1031]	149	IF ( netcdf_data_format > 4 ) THEN
[3045]	150	message_string = 'netCDF file formats '// &
	151	'5 and 6 (with parallel I/O support)'// &
	152	' are currently not supported.'
[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,:)
[3435]	165	!
	166	!-- Flag a mask as terrain following
	167	IF ( mask_k_over_surface(mid,1) /= -1_iwp ) THEN
	168	mask_surface(mid) = .TRUE.
	169	ENDIF
	170
[1353]	171	IF ( mask_x_loop(mid,1) == -1.0_wp .AND. mask_x_loop(mid,2) == -1.0_wp&
	172	.AND. mask_x_loop(mid,3) == -1.0_wp ) THEN
	173	mask_loop(mid,1,1:2) = -1.0_wp
	174	mask_loop(mid,1,3) = 0.0_wp
[564]	175	ELSE
	176	mask_loop(mid,1,:) = mask_x_loop(mid,:)
	177	ENDIF
[1353]	178	IF ( mask_y_loop(mid,1) == -1.0_wp .AND. mask_y_loop(mid,2) == -1.0_wp&
	179	.AND. mask_y_loop(mid,3) == -1.0_wp ) THEN
	180	mask_loop(mid,2,1:2) = -1.0_wp
	181	mask_loop(mid,2,3) = 0.0_wp
[564]	182	ELSE
	183	mask_loop(mid,2,:) = mask_y_loop(mid,:)
	184	ENDIF
[1353]	185	IF ( mask_z_loop(mid,1) == -1.0_wp .AND. mask_z_loop(mid,2) == -1.0_wp&
	186	.AND. mask_z_loop(mid,3) == -1.0_wp ) THEN
	187	mask_loop(mid,3,1:2) = -1.0_wp
	188	mask_loop(mid,3,3) = 0.0_wp
[564]	189	ELSE
	190	mask_loop(mid,3,:) = mask_z_loop(mid,:)
	191	ENDIF
	192
[553]	193	ENDDO
	194
[298]	195	mask_i = -1; mask_j = -1; mask_k = -1
[553]	196
[298]	197	!
	198	!-- Global arrays are required by define_netcdf_header.
[1031]	199	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
[1414]	200	ALLOCATE( mask_i_global(max_masks,nx+2), &
	201	mask_j_global(max_masks,ny+2), &
	202	mask_k_global(max_masks,nz+2) )
[298]	203	mask_i_global = -1; mask_j_global = -1; mask_k_global = -1
	204	ENDIF
	205
	206	!
	207	!-- Determine variable names for each mask
	208	DO mid = 1, masks
	209	!
	210	!-- Append user-defined data output variables to the standard data output
	211	IF ( do_mask_user(mid,1) /= ' ' ) THEN
	212	i = 1
	213	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
	214	i = i + 1
	215	ENDDO
	216	j = 1
	217	DO WHILE ( do_mask_user(mid,j) /= ' ' .AND. j <= 100 )
	218	IF ( i > 100 ) THEN
[3045]	219	WRITE ( message_string, * ) 'number of output quantitities ', &
	220	'given by data_output_mask and data_output_mask_user ', &
[298]	221	'exceeds the limit of 100'
[564]	222	CALL message( 'init_masks', 'PA0329', 1, 2, 0, 6, 0 )
[298]	223	ENDIF
	224	do_mask(mid,i) = do_mask_user(mid,j)
	225	i = i + 1
	226	j = j + 1
	227	ENDDO
	228	ENDIF
	229
	230	!
	231	!-- Check and set steering parameters for mask data output and averaging
	232	i = 1
[996]	233	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
[298]	234	!
	235	!-- Check for data averaging
	236	ilen = LEN_TRIM( do_mask(mid,i) )
	237	j = 0 ! no data averaging
	238	IF ( ilen > 3 ) THEN
	239	IF ( do_mask(mid,i)(ilen-2:ilen) == '_av' ) THEN
	240	j = 1 ! data averaging
	241	do_mask(mid,i) = do_mask(mid,i)(1:ilen-3)
	242	ENDIF
	243	ENDIF
	244	var = TRIM( do_mask(mid,i) )
	245	!
	246	!-- Check for allowed value and set units
	247	SELECT CASE ( TRIM( var ) )
	248
	249	CASE ( 'e' )
	250	IF ( constant_diffusion ) THEN
[3045]	251	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[298]	252	'" requires constant_diffusion = .FALSE.'
[564]	253	CALL message( 'init_masks', 'PA0103', 1, 2, 0, 6, 0 )
[298]	254	ENDIF
	255	unit = 'm2/s2'
	256
[3421]	257	CASE ( 'thetal' )
[3274]	258	IF ( .NOT. bulk_cloud_model ) THEN
[3045]	259	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[3274]	260	'" requires bulk_cloud_model = .TRUE.'
[773]	261	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
[771]	262	ENDIF
	263	unit = 'K'
	264
[2292]	265	CASE ( 'nc' )
[3274]	266	IF ( .NOT. bulk_cloud_model ) THEN
[3045]	267	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[3274]	268	'" requires bulk_cloud_model = .TRUE.'
[2292]	269	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
	270	ELSEIF ( .NOT. microphysics_morrison ) THEN
[3045]	271	message_string = 'output of "' // TRIM( var ) // '" ' // &
	272	'requires = morrison'
[2292]	273	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
	274	ENDIF
	275	unit = '1/m3'
	276
[4502]	277	CASE ( 'ni' )
	278	IF ( .NOT. bulk_cloud_model ) THEN
	279	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	280	'" requires bulk_cloud_model = .TRUE.'
	281	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
[4521]	282	ELSEIF ( .NOT. microphysics_ice_phase ) THEN
[4502]	283	message_string = 'output of "' // TRIM( var ) // '" ' // &
[4521]	284	'requires microphysics_ice_phase = .TRUE.'
[4502]	285	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
	286	ENDIF
	287	unit = '1/m3'
	288
[1438]	289	CASE ( 'nr' )
[3274]	290	IF ( .NOT. bulk_cloud_model ) THEN
[3045]	291	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[3274]	292	'" requires bulk_cloud_model = .TRUE.'
[1438]	293	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
[1822]	294	ELSEIF ( .NOT. microphysics_seifert ) THEN
[3045]	295	message_string = 'output of "' // TRIM( var ) // '"' // &
	296	'requires cloud_scheme = seifert_beheng'
[1438]	297	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
	298	ENDIF
	299	unit = '1/m3'
	300
[298]	301	CASE ( 'pc', 'pr' )
	302	IF ( .NOT. particle_advection ) THEN
[3045]	303	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
	304	'" requires a "particles_par"-NAMELIST in the ', &
[298]	305	'parameter file (PARIN)'
[564]	306	CALL message( 'init_masks', 'PA0104', 1, 2, 0, 6, 0 )
[298]	307	ENDIF
	308	IF ( TRIM( var ) == 'pc' ) unit = 'number'
	309	IF ( TRIM( var ) == 'pr' ) unit = 'm'
	310
[3421]	311	CASE ( 'q', 'thetav' )
[298]	312	IF ( .NOT. humidity ) THEN
[3045]	313	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[298]	314	'" requires humidity = .TRUE.'
[564]	315	CALL message( 'init_masks', 'PA0105', 1, 2, 0, 6, 0 )
[298]	316	ENDIF
	317	IF ( TRIM( var ) == 'q' ) unit = 'kg/kg'
[3421]	318	IF ( TRIM( var ) == 'thetav' ) unit = 'K'
[298]	319
[1438]	320	CASE ( 'qc' )
[3274]	321	IF ( .NOT. bulk_cloud_model ) THEN
[3045]	322	message_string = 'output of "' // TRIM( var ) // '"' // &
[3274]	323	'requires bulk_cloud_model = .TRUE.'
[1438]	324	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
	325	ENDIF
	326	unit = 'kg/kg'
	327
[298]	328	CASE ( 'ql' )
[3274]	329	IF ( .NOT. ( bulk_cloud_model .OR. cloud_droplets ) ) THEN
[3045]	330	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[3274]	331	'" requires bulk_cloud_model = .TRUE. or ', &
	332	'cloud_droplets = .TRUE.'
[3045]	333	CALL message( 'init_masks', 'PA0106', 1, 2, 0, 6, 0 )
[298]	334	ENDIF
	335	unit = 'kg/kg'
	336
	337	CASE ( 'ql_c', 'ql_v', 'ql_vp' )
	338	IF ( .NOT. cloud_droplets ) THEN
[3045]	339	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[298]	340	'" requires cloud_droplets = .TRUE.'
[564]	341	CALL message( 'init_masks', 'PA0107', 1, 2, 0, 6, 0 )
[298]	342	ENDIF
	343	IF ( TRIM( var ) == 'ql_c' ) unit = 'kg/kg'
	344	IF ( TRIM( var ) == 'ql_v' ) unit = 'm3'
	345	IF ( TRIM( var ) == 'ql_vp' ) unit = 'none'
	346
	347	CASE ( 'qv' )
[3274]	348	IF ( .NOT. bulk_cloud_model ) THEN
[3045]	349	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[3274]	350	'" requires bulk_cloud_model = .TRUE.'
[564]	351	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
[298]	352	ENDIF
	353	unit = 'kg/kg'
	354
[4502]	355	CASE ( 'qi' )
	356	IF ( .NOT. bulk_cloud_model ) THEN
	357	message_string = 'output of "' // TRIM( var ) // '" ' // &
	358	'requires bulk_cloud_model = .TRUE.'
	359	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
[4521]	360	ELSEIF ( .NOT. microphysics_ice_phase ) THEN
[4502]	361	message_string = 'output of "' // TRIM( var ) // '" ' // &
[4521]	362	'requires microphysics_ice_phase = .TRUE.'
[4502]	363	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
	364	ENDIF
	365	unit = 'kg/kg'
	366
[1438]	367	CASE ( 'qr' )
[3274]	368	IF ( .NOT. bulk_cloud_model ) THEN
[3045]	369	message_string = 'output of "' // TRIM( var ) // '" ' // &
[3274]	370	'requires bulk_cloud_model = .TRUE.'
[1438]	371	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
[1822]	372	ELSEIF ( .NOT. microphysics_seifert ) THEN
[3045]	373	message_string = 'output of "' // TRIM( var ) // '" ' // &
	374	'requires cloud_scheme = seifert_beheng'
[1438]	375	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
	376	ENDIF
	377	unit = 'kg/kg'
	378
[3421]	379	CASE ( 'rho_sea_water' )
[3294]	380	IF ( .NOT. ocean_mode ) THEN
[3045]	381	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[3294]	382	'" requires ocean mode'
[564]	383	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
[298]	384	ENDIF
	385	unit = 'kg/m3'
	386
	387	CASE ( 's' )
	388	IF ( .NOT. passive_scalar ) THEN
[3045]	389	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[298]	390	'" requires passive_scalar = .TRUE.'
[564]	391	CALL message( 'init_masks', 'PA0110', 1, 2, 0, 6, 0 )
[298]	392	ENDIF
	393	unit = 'conc'
	394
	395	CASE ( 'sa' )
[3294]	396	IF ( .NOT. ocean_mode ) THEN
[3045]	397	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
[3294]	398	'" requires ocean mode'
[564]	399	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
[298]	400	ENDIF
	401	unit = 'psu'
	402
[3421]	403	CASE ( 'us', 't', 'lwp', 'pra', 'prr', 'z0', 'z0h*' )
[3045]	404	WRITE ( message_string, * ) 'illegal value for data_', &
	405	'output: "', TRIM( var ), '" is only allowed', &
[298]	406	'for horizontal cross section'
[564]	407	CALL message( 'init_masks', 'PA0111', 1, 2, 0, 6, 0 )
[298]	408
[3421]	409	CASE ( 'p', 'theta', 'u', 'v', 'w' )
[298]	410	IF ( TRIM( var ) == 'p' ) unit = 'Pa'
[3421]	411	IF ( TRIM( var ) == 'theta' ) unit = 'K'
[298]	412	IF ( TRIM( var ) == 'u' ) unit = 'm/s'
	413	IF ( TRIM( var ) == 'v' ) unit = 'm/s'
	414	IF ( TRIM( var ) == 'w' ) unit = 'm/s'
	415	CONTINUE
	416
	417	CASE DEFAULT
[3687]	418	!
	419	!-- Allocate arrays for other modules
	420	CALL module_interface_init_masks( var, unit )
[298]	421
	422	IF ( unit == 'illegal' ) THEN
	423	IF ( do_mask_user(mid,1) /= ' ' ) THEN
[3045]	424	WRITE ( message_string, * ) 'illegal value for data_', &
	425	'output_masks or data_output_masks_user: "', &
[298]	426	TRIM( do_mask(mid,i) ), '"'
[3045]	427	CALL message( 'init_masks', 'PA0018', 1, 2, 0, 6, 0 )
[298]	428	ELSE
[3045]	429	WRITE ( message_string, * ) 'illegal value for data_', &
	430	' output_masks : "', TRIM( do_mask(mid,i) ), '"'
[564]	431	CALL message( 'init_masks', 'PA0330', 1, 2, 0, 6, 0 )
[298]	432	ENDIF
	433	ENDIF
	434
	435	END SELECT
	436	!
	437	!-- Set the internal steering parameters appropriately
	438	domask_no(mid,j) = domask_no(mid,j) + 1
	439	domask(mid,j,domask_no(mid,j)) = do_mask(mid,i)
	440	domask_unit(mid,j,domask_no(mid,j)) = unit
	441
	442	IF ( j == 1 ) THEN
	443	!
	444	!-- Check, if variable is already subject to averaging
	445	found = .FALSE.
	446	DO k = 1, doav_n
	447	IF ( TRIM( doav(k) ) == TRIM( var ) ) found = .TRUE.
	448	ENDDO
	449
	450	IF ( .NOT. found ) THEN
	451	doav_n = doav_n + 1
	452	doav(doav_n) = var
	453	ENDIF
	454	ENDIF
	455
	456	i = i + 1
	457
	458	ENDDO ! do_mask(mid,i)
	459	ENDDO ! mid
	460
	461
	462	!
	463	!-- Determine mask locations for each mask
	464	DO mid = 1, masks
	465	!
	466	!-- Set local masks for each subdomain along all three dimensions
	467	CALL set_mask_locations( 1, dx, 'dx', nx, 'nx', nxl, nxr )
	468	CALL set_mask_locations( 2, dy, 'dy', ny, 'ny', nys, nyn )
[3435]	469	IF ( .NOT. mask_surface(mid) ) THEN
	470	CALL set_mask_locations( 3, dz(1), 'dz', nz, 'nz', nzb, nzt )
	471	ELSE
[298]	472	!
[3435]	473	!-- Set vertical mask locations and size in case of terrain-following
	474	!-- output
	475	count = 0
	476	DO WHILE ( mask_k_over_surface(mid, count+1) >= 0 )
	477	m = mask_k_over_surface(mid, count+1)
	478	IF ( m > nz+1 ) THEN
	479	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
	480	m,' in mask ',mid,' along dimension ', 3, &
	481	' exceeds (nz+1) = ',nz+1
	482	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
	483	ENDIF
	484	count = count + 1
	485	mask_k(mid,count) = mask_k_over_surface(mid, count)
	486	IF ( count == mask_xyz_dimension ) EXIT
	487	ENDDO
	488	mask_start_l(mid,3) = 1
	489	mask_size(mid,3) = count
	490	mask_size_l(mid,3) = count
	491	ENDIF
	492	!
[298]	493	!-- Set global masks along all three dimensions (required by
	494	!-- define_netcdf_header).
[1804]	495	#if defined( __parallel )
[298]	496	!
	497	!-- PE0 receives partial arrays from all processors of the respective mask
	498	!-- and outputs them. Here a barrier has to be set, because otherwise
	499	!-- "-MPI- FATAL: Remote protocol queue full" may occur.
[807]	500
[298]	501	CALL MPI_BARRIER( comm2d, ierr )
	502
	503	IF ( myid == 0 ) THEN
	504	!
	505	!-- Local arrays can be relocated directly.
	506	mask_i_global(mid,mask_start_l(mid,1): &
	507	mask_start_l(mid,1)+mask_size_l(mid,1)-1) = &
	508	mask_i(mid,:mask_size_l(mid,1))
	509	mask_j_global(mid,mask_start_l(mid,2): &
	510	mask_start_l(mid,2)+mask_size_l(mid,2)-1) = &
	511	mask_j(mid,:mask_size_l(mid,2))
	512	mask_k_global(mid,mask_start_l(mid,3): &
	513	mask_start_l(mid,3)+mask_size_l(mid,3)-1) = &
	514	mask_k(mid,:mask_size_l(mid,3))
	515	!
	516	!-- Receive data from all other PEs.
	517	DO n = 1, numprocs-1
	518	!
	519	!-- Receive index limits first, then arrays.
	520	!-- Index limits are received in arbitrary order from the PEs.
	521	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, &
	522	comm2d, status, ierr )
	523	!
	524	!-- Not all PEs have data for the mask.
	525	IF ( ind(1) /= -9999 ) THEN
	526	sender = status(MPI_SOURCE)
	527	CALL MPI_RECV( tmp_array(ind(1)), ind(2)-ind(1)+1, &
[363]	528	MPI_INTEGER, sender, 1, comm2d, status, ierr )
[298]	529	mask_i_global(mid,ind(1):ind(2)) = tmp_array(ind(1):ind(2))
	530	CALL MPI_RECV( tmp_array(ind(3)), ind(4)-ind(3)+1, &
[363]	531	MPI_INTEGER, sender, 2, comm2d, status, ierr )
[298]	532	mask_j_global(mid,ind(3):ind(4)) = tmp_array(ind(3):ind(4))
	533	CALL MPI_RECV( tmp_array(ind(5)), ind(6)-ind(5)+1, &
[363]	534	MPI_INTEGER, sender, 3, comm2d, status, ierr )
[298]	535	mask_k_global(mid,ind(5):ind(6)) = tmp_array(ind(5):ind(6))
	536	ENDIF
	537	ENDDO
	538
	539	ELSE
	540	!
	541	!-- If at least part of the mask resides on the PE, send the index limits
	542	!-- for the target array, otherwise send -9999 to PE0.
[996]	543	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
	544	mask_size_l(mid,3) > 0 ) THEN
[298]	545	ind(1) = mask_start_l(mid,1)
	546	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
	547	ind(3) = mask_start_l(mid,2)
	548	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
	549	ind(5) = mask_start_l(mid,3)
	550	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
	551	ELSE
	552	ind(1) = -9999; ind(2) = -9999
	553	ind(3) = -9999; ind(4) = -9999
	554	ind(5) = -9999; ind(6) = -9999
	555	ENDIF
	556	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
	557	!
	558	!-- If applicable, send data to PE0.
	559	IF ( ind(1) /= -9999 ) THEN
	560	tmp_array(:mask_size_l(mid,1)) = mask_i(mid,:mask_size_l(mid,1))
	561	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,1), &
[363]	562	MPI_INTEGER, 0, 1, comm2d, ierr )
[298]	563	tmp_array(:mask_size_l(mid,2)) = mask_j(mid,:mask_size_l(mid,2))
	564	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,2), &
[363]	565	MPI_INTEGER, 0, 2, comm2d, ierr )
[298]	566	tmp_array(:mask_size_l(mid,3)) = mask_k(mid,:mask_size_l(mid,3))
	567	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,3), &
[363]	568	MPI_INTEGER, 0, 3, comm2d, ierr )
[298]	569	ENDIF
	570	ENDIF
	571	!
	572	!-- A barrier has to be set, because otherwise some PEs may proceed too fast
	573	!-- so that PE0 may receive wrong data on tag 0.
	574	CALL MPI_BARRIER( comm2d, ierr )
[409]	575
[1031]	576	IF ( netcdf_data_format > 4 ) THEN
[409]	577
[1414]	578	CALL MPI_BCAST( mask_i_global(mid,:), nx+2, MPI_INTEGER, 0, comm2d, &
[493]	579	ierr )
[1414]	580	CALL MPI_BCAST( mask_j_global(mid,:), ny+2, MPI_INTEGER, 0, comm2d, &
[493]	581	ierr )
[1414]	582	CALL MPI_BCAST( mask_k_global(mid,:), nz+2, MPI_INTEGER, 0, comm2d, &
[493]	583	ierr )
[1682]	584
[409]	585	ENDIF
[298]	586
[1804]	587	#else
[298]	588	!
	589	!-- Local arrays can be relocated directly.
	590	mask_i_global(mid,:) = mask_i(mid,:)
	591	mask_j_global(mid,:) = mask_j(mid,:)
	592	mask_k_global(mid,:) = mask_k(mid,:)
	593	#endif
	594	ENDDO ! mid
	595
	596	DEALLOCATE( tmp_array )
	597	!
	598	!-- Internal mask arrays cannot be deallocated on PE 0 because they are
	599	!-- required for header output on PE 0.
	600	IF ( myid /= 0 ) DEALLOCATE( mask, mask_loop )
	601
	602	CONTAINS
[493]	603
[298]	604	!------------------------------------------------------------------------------!
	605	! Description:
	606	! ------------
[1682]	607	!> Set local mask for each subdomain along 'dim' direction.
[298]	608	!------------------------------------------------------------------------------!
[1682]	609	SUBROUTINE set_mask_locations( dim, dxyz, dxyz_string, nxyz, nxyz_string, &
	610	lb, ub )
[298]	611
	612	IMPLICIT NONE
	613
[1682]	614	CHARACTER (LEN=2) :: dxyz_string !<
	615	CHARACTER (LEN=2) :: nxyz_string !<
[1320]	616
[1682]	617	INTEGER(iwp) :: count !<
	618	INTEGER(iwp) :: count_l !<
	619	INTEGER(iwp) :: dim !<
	620	INTEGER(iwp) :: m !<
	621	INTEGER(iwp) :: loop_begin !<
	622	INTEGER(iwp) :: loop_end !<
	623	INTEGER(iwp) :: loop_stride !<
	624	INTEGER(iwp) :: lb !<
	625	INTEGER(iwp) :: nxyz !<
	626	INTEGER(iwp) :: ub !<
[1320]	627
[1682]	628	REAL(wp) :: dxyz !<
	629	REAL(wp) :: ddxyz !<
	630	REAL(wp) :: tmp1 !<
	631	REAL(wp) :: tmp2 !<
[298]	632
[1353]	633	count = 0; count_l = 0
	634	ddxyz = 1.0_wp / dxyz
	635	tmp1 = 0.0_wp
	636	tmp2 = 0.0_wp
[298]	637
[1353]	638	IF ( mask(mid,dim,1) >= 0.0_wp ) THEN
[298]	639	!
	640	!-- use predefined mask_* array
[1353]	641	DO WHILE ( mask(mid,dim,count+1) >= 0.0_wp )
[298]	642	count = count + 1
	643	IF ( dim == 1 .OR. dim == 2 ) THEN
[1353]	644	m = NINT( mask(mid,dim,count) * mask_scale(dim) * ddxyz - 0.5_wp )
[1414]	645	IF ( m < 0 ) m = 0 ! avoid negative values
[298]	646	ELSEIF ( dim == 3 ) THEN
	647	ind_array = &
[595]	648	MINLOC( ABS( mask(mid,dim,count) * mask_scale(dim) - zu ) )
[298]	649	m = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
	650	ENDIF
[1414]	651	IF ( m > (nxyz+1) ) THEN
[3045]	652	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
	653	m,' in mask ',mid,' along dimension ',dim, &
[1414]	654	' exceeds (',nxyz_string,'+1) = ',nxyz+1
[564]	655	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
[298]	656	ENDIF
[1414]	657	IF ( ( m >= lb .AND. m <= ub ) .OR. &
	658	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
[298]	659	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
	660	count_l = count_l + 1
	661	IF ( dim == 1 ) THEN
	662	mask_i(mid,count_l) = m
	663	ELSEIF ( dim == 2 ) THEN
	664	mask_j(mid,count_l) = m
	665	ELSEIF ( dim == 3 ) THEN
	666	mask_k(mid,count_l) = m
	667	ENDIF
	668	ENDIF
	669	IF ( count == mask_xyz_dimension ) EXIT
	670	ENDDO
	671	mask_size(mid,dim) = count
	672	mask_size_l(mid,dim) = count_l
	673
	674	ELSE
	675	!
	676	!-- use predefined mask_loop_* array, or use the default (all grid points
	677	!-- along this direction)
[1353]	678	IF ( mask_loop(mid,dim,1) < 0.0_wp ) THEN
[298]	679	tmp1 = mask_loop(mid,dim,1)
[1186]	680	mask_loop(mid,dim,1) = zw(nzb) ! lowest level (default)
[298]	681	ENDIF
	682	IF ( dim == 1 .OR. dim == 2 ) THEN
[1353]	683	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
[298]	684	tmp2 = mask_loop(mid,dim,2)
[3512]	685	mask_loop(mid,dim,2) = nxyz*dxyz / mask_scale(dim) ! (default)
[298]	686	ENDIF
	687	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
[1414]	688	> (nxyz+1) * dxyz / mask_scale(dim) ) THEN
[303]	689	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),5A,I1,A,F9.3)' ) &
[3045]	690	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
[303]	691	' and/or mask_loop(',mid,',',dim,',2)=', &
[3045]	692	mask_loop(mid,dim,2),' exceed (', &
	693	nxyz_string,'+1)*',dxyz_string,'/mask_scale(',dim,')=', &
[1414]	694	(nxyz+1)*dxyz/mask_scale(dim)
[564]	695	CALL message( 'init_masks', 'PA0332', 1, 2, 0, 6, 0 )
[298]	696	ENDIF
[3045]	697	loop_begin = NINT( mask_loop(mid,dim,1) * mask_scale(dim) &
[1353]	698	* ddxyz - 0.5_wp )
[3045]	699	loop_end = NINT( mask_loop(mid,dim,2) * mask_scale(dim) &
[1353]	700	* ddxyz - 0.5_wp )
[3045]	701	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) &
[1032]	702	* ddxyz )
[1414]	703	IF ( loop_begin == -1 ) loop_begin = 0 ! avoid negative values
[298]	704	ELSEIF ( dim == 3 ) THEN
[1353]	705	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
[298]	706	tmp2 = mask_loop(mid,dim,2)
[1414]	707	mask_loop(mid,dim,2) = zu(nz+1) / mask_scale(dim) ! (default)
[298]	708	ENDIF
	709	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
[1414]	710	> zu(nz+1) / mask_scale(dim) ) THEN
[3045]	711	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),A,I1,A,F9.3)' ) &
	712	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
[303]	713	' and/or mask_loop(',mid,',',dim,',2)=', &
[3045]	714	mask_loop(mid,dim,2),' exceed zu(nz+1)/mask_scale(',dim, &
[1414]	715	')=',zu(nz+1)/mask_scale(dim)
[564]	716	CALL message( 'init_masks', 'PA0333', 1, 2, 0, 6, 0 )
[298]	717	ENDIF
[303]	718	ind_array = &
[595]	719	MINLOC( ABS( mask_loop(mid,dim,1) * mask_scale(dim) - zu ) )
[298]	720	loop_begin = &
[303]	721	ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
	722	ind_array = &
[595]	723	MINLOC( ABS( mask_loop(mid,dim,2) * mask_scale(dim) - zu ) )
[298]	724	loop_end = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
	725	!
[303]	726	!-- The following line assumes a constant vertical grid spacing within
	727	!-- the vertical mask range; it fails for vertical grid stretching.
[3065]	728	!-- Maybe revise later. Issue warning but continue execution. ABS(...)
	729	!-- within the IF statement is necessary because the default value of
	730	!-- dz_stretch_level_start is -9999999.9_wp.
[303]	731	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) * ddxyz )
	732
[3065]	733	IF ( mask_loop(mid,dim,2) * mask_scale(dim) > &
	734	ABS( dz_stretch_level_start(1) ) ) THEN
[3045]	735	WRITE ( message_string, '(A,I3,A,I1,A,F9.3,A,F8.2,3A)' ) &
	736	'mask_loop(',mid,',',dim,',2)=', mask_loop(mid,dim,2), &
[3065]	737	' exceeds dz_stretch_level=',dz_stretch_level_start(1), &
[3046]	738	'.&Vertical mask locations will not ', &
[3045]	739	'match the desired heights within the stretching ', &
[2271]	740	'region.'
[564]	741	CALL message( 'init_masks', 'PA0334', 0, 1, 0, 6, 0 )
[303]	742	ENDIF
	743
[298]	744	ENDIF
	745	!
	746	!-- If necessary, reset mask_loop(mid,dim,1) and mask_loop(mid,dim,2).
[1353]	747	IF ( tmp1 < 0.0_wp ) mask_loop(mid,dim,1) = tmp1
	748	IF ( tmp2 < 0.0_wp ) mask_loop(mid,dim,2) = tmp2
[298]	749	!
	750	!-- The default stride +/-1 (every grid point) applies if
	751	!-- mask_loop(mid,dim,3) is not specified (its default is zero).
	752	IF ( loop_stride == 0 ) THEN
	753	IF ( loop_end >= loop_begin ) THEN
	754	loop_stride = 1
	755	ELSE
	756	loop_stride = -1
	757	ENDIF
	758	ENDIF
	759	DO m = loop_begin, loop_end, loop_stride
	760	count = count + 1
[1414]	761	IF ( ( m >= lb .AND. m <= ub ) .OR. &
	762	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
[298]	763	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
	764	count_l = count_l + 1
	765	IF ( dim == 1 ) THEN
	766	mask_i(mid,count_l) = m
	767	ELSEIF ( dim == 2 ) THEN
	768	mask_j(mid,count_l) = m
	769	ELSEIF ( dim == 3 ) THEN
	770	mask_k(mid,count_l) = m
	771	ENDIF
	772	ENDIF
	773	ENDDO
	774	mask_size(mid,dim) = count
	775	mask_size_l(mid,dim) = count_l
[1414]	776
[298]	777	ENDIF
	778
	779	END SUBROUTINE set_mask_locations
	780
	781	END SUBROUTINE init_masks

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