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source: palm/trunk/SOURCE/init_masks.f90 @ 2284

Last change on this file since 2284 was 2271, checked in by sward, 8 years ago
error messages and numbers updated
Property svn:keywords set to `Id`
File size: 29.0 KB

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1	!> @file init_masks.f90
2	!------------------------------------------------------------------------------!
3	! This file is part of PALM.
4	!
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.
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	!
17	! Copyright 1997-2017 Leibniz Universitaet Hannover
18	!------------------------------------------------------------------------------!
19	!
20	! Current revisions:
21	! -----------------
22	!
23	!
24	! Former revisions:
25	! -----------------
26	! $Id: init_masks.f90 2271 2017-06-09 12:34:55Z witha $
27	! Changed error message
28	!
29	! 2101 2017-01-05 16:42:31Z suehring
30	!
31	! 2031 2016-10-21 15:11:58Z knoop
32	! renamed variable rho to rho_ocean
33	!
34	! 2000 2016-08-20 18:09:15Z knoop
35	! Forced header and separation lines into 80 columns
36	!
37	! 1822 2016-04-07 07:49:42Z hoffmann
38	! icloud_scheme replaced by microphysics_*
39	!
40	! 1804 2016-04-05 16:30:18Z maronga
41	! Removed code for parameter file check (__check)
42	!
43	! 1783 2016-03-06 18:36:17Z raasch
44	! netcdf module name changed + related changes
45	!
46	! 1682 2015-10-07 23:56:08Z knoop
47	! Code annotations made doxygen readable
48	!
49	! 1438 2014-07-22 14:14:06Z heinze
50	! +nr, qc, qr
51	!
52	! 1414 2014-05-31 11:19:48Z gronemeier
53	! Bugfix: first and last grid points as they appear in 3D volume data can now
54	! be included to masked data output
55	!
56	! 1353 2014-04-08 15:21:23Z heinze
57	! REAL constants provided with KIND-attribute
58	!
59	! 1324 2014-03-21 09:13:16Z suehring
60	! Bugfix: ONLY statement for module netcdf_control removed
61	!
62	! 1320 2014-03-20 08:40:49Z raasch
63	! ONLY-attribute added to USE-statements,
64	! kind-parameters added to all INTEGER and REAL declaration statements,
65	! kinds are defined in new module kinds,
66	! revision history before 2012 removed,
67	! comment fields (!:) to be used for variable explanations added to
68	! all variable declaration statements
69	!
70	! 1186 2013-06-18 06:22:52Z raasch
71	! bugfix: 0.0 replaced by zu(nzb) as the lowest default height level for masks,
72	! because a zero value does not work in case of ocean runs
73	!
74	! 1036 2012-10-22 13:43:42Z raasch
75	! code put under GPL (PALM 3.9)
76	!
77	! 1032 2012-10-21 13:03:21Z letzel
78	! mask locations determined based on scalar positions
79	!
80	! 1031 2012-10-19 14:35:30Z raasch
81	! netCDF4 without parallel file support implemented
82	!
83	! 996 2012-09-07 10:41:47Z raasch
84	! little reformatting
85	!
86	! 978 2012-08-09 08:28:32Z fricke
87	! +z0h*
88	!
89	! 809 2012-01-30 13:32:58Z maronga
90	! Bugfix: replaced .AND. and .NOT. with && and ! in the preprocessor directives
91	!
92	! 807 2012-01-25 11:53:51Z maronga
93	! New cpp directive "__check" implemented which is used by check_namelist_files
94	!
95	! 410 2009-12-04 17:05:40Z letzel
96	! Initial revision
97	!
98	!
99	! Description:
100	! ------------
101	!> Initialize masked data output
102	!------------------------------------------------------------------------------!
103	SUBROUTINE init_masks
104
105	USE arrays_3d, &
106	ONLY: zu, zw
107
108	USE control_parameters, &
109	ONLY: constant_diffusion, cloud_droplets, cloud_physics, &
110	data_output_masks, data_output_masks_user, &
111	doav, doav_n, domask, domask_no, dz, dz_stretch_level, humidity,&
112	mask, masks, mask_scale, mask_i, &
113	mask_i_global, mask_j, mask_j_global, mask_k, mask_k_global, &
114	mask_loop, mask_size, mask_size_l, mask_start_l, mask_x, &
115	mask_x_loop, mask_xyz_dimension, mask_y, mask_y_loop, mask_z, &
116	mask_z_loop, max_masks, message_string, mid, &
117	microphysics_seifert, passive_scalar, ocean
118
119	USE grid_variables, &
120	ONLY: dx, dy
121
122	USE indices, &
123	ONLY: nx, nxl, nxr, ny, nyn, nys, nz, nzb, nzt
124
125	USE kinds
126
127	USE netcdf_interface, &
128	ONLY: domask_unit, netcdf_data_format
129
130	USE particle_attributes, &
131	ONLY: particle_advection
132
133	USE pegrid
134
135	IMPLICIT NONE
136
137	CHARACTER (LEN=6) :: var !<
138	CHARACTER (LEN=7) :: unit !<
139
140	CHARACTER (LEN=10), DIMENSION(max_masks,100) :: do_mask !<
141	CHARACTER (LEN=10), DIMENSION(max_masks,100) :: do_mask_user !<
142
143	INTEGER(iwp) :: i !<
144	INTEGER(iwp) :: ilen !<
145	INTEGER(iwp) :: ind(6) !<
146	INTEGER(iwp) :: ind_array(1) !<
147	INTEGER(iwp) :: j !<
148	INTEGER(iwp) :: k !<
149	INTEGER(iwp) :: n !<
150	INTEGER(iwp) :: sender !<
151
152	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: tmp_array !<
153
154	LOGICAL :: found !<
155	!
156	!-- Allocation and initialization
157	ALLOCATE( tmp_array( MAX(nx,ny,nz)+2 ) )
158
159	ALLOCATE( mask_i(max_masks,nxr-nxl+2), &
160	mask_j(max_masks,nyn-nys+2), &
161	mask_k(max_masks,nzt-nzb+2) )
162	!
163	!-- internal mask arrays ("mask,dimension,selection")
164	ALLOCATE( mask(max_masks,3,mask_xyz_dimension), &
165	mask_loop(max_masks,3,3) )
166
167	!
168	!-- Parallel mask output not yet tested
169	IF ( netcdf_data_format > 4 ) THEN
170	message_string = 'netCDF file formats '// &
171	'3 (netCDF 4) and 4 (netCDF 4 Classic model)'// &
172	'&are currently not supported (not yet tested).'
173	CALL message( 'init_masks', 'PA0328', 1, 2, 0, 6, 0 )
174	ENDIF
175
176	!
177	!-- Store data output parameters for masked data output in few shared arrays
178	DO mid = 1, masks
179
180	do_mask (mid,:) = data_output_masks(mid,:)
181	do_mask_user(mid,:) = data_output_masks_user(mid,:)
182	mask (mid,1,:) = mask_x(mid,:)
183	mask (mid,2,:) = mask_y(mid,:)
184	mask (mid,3,:) = mask_z(mid,:)
185
186	IF ( mask_x_loop(mid,1) == -1.0_wp .AND. mask_x_loop(mid,2) == -1.0_wp&
187	.AND. mask_x_loop(mid,3) == -1.0_wp ) THEN
188	mask_loop(mid,1,1:2) = -1.0_wp
189	mask_loop(mid,1,3) = 0.0_wp
190	ELSE
191	mask_loop(mid,1,:) = mask_x_loop(mid,:)
192	ENDIF
193	IF ( mask_y_loop(mid,1) == -1.0_wp .AND. mask_y_loop(mid,2) == -1.0_wp&
194	.AND. mask_y_loop(mid,3) == -1.0_wp ) THEN
195	mask_loop(mid,2,1:2) = -1.0_wp
196	mask_loop(mid,2,3) = 0.0_wp
197	ELSE
198	mask_loop(mid,2,:) = mask_y_loop(mid,:)
199	ENDIF
200	IF ( mask_z_loop(mid,1) == -1.0_wp .AND. mask_z_loop(mid,2) == -1.0_wp&
201	.AND. mask_z_loop(mid,3) == -1.0_wp ) THEN
202	mask_loop(mid,3,1:2) = -1.0_wp
203	mask_loop(mid,3,3) = 0.0_wp
204	ELSE
205	mask_loop(mid,3,:) = mask_z_loop(mid,:)
206	ENDIF
207
208	ENDDO
209
210	mask_i = -1; mask_j = -1; mask_k = -1
211
212	!
213	!-- Global arrays are required by define_netcdf_header.
214	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
215	ALLOCATE( mask_i_global(max_masks,nx+2), &
216	mask_j_global(max_masks,ny+2), &
217	mask_k_global(max_masks,nz+2) )
218	mask_i_global = -1; mask_j_global = -1; mask_k_global = -1
219	ENDIF
220
221	!
222	!-- Determine variable names for each mask
223	DO mid = 1, masks
224	!
225	!-- Append user-defined data output variables to the standard data output
226	IF ( do_mask_user(mid,1) /= ' ' ) THEN
227	i = 1
228	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
229	i = i + 1
230	ENDDO
231	j = 1
232	DO WHILE ( do_mask_user(mid,j) /= ' ' .AND. j <= 100 )
233	IF ( i > 100 ) THEN
234	WRITE ( message_string, * ) 'number of output quantitities ', &
235	'given by data_output_mask and data_output_mask_user ', &
236	'exceeds the limit of 100'
237	CALL message( 'init_masks', 'PA0329', 1, 2, 0, 6, 0 )
238	ENDIF
239	do_mask(mid,i) = do_mask_user(mid,j)
240	i = i + 1
241	j = j + 1
242	ENDDO
243	ENDIF
244
245	!
246	!-- Check and set steering parameters for mask data output and averaging
247	i = 1
248	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
249	!
250	!-- Check for data averaging
251	ilen = LEN_TRIM( do_mask(mid,i) )
252	j = 0 ! no data averaging
253	IF ( ilen > 3 ) THEN
254	IF ( do_mask(mid,i)(ilen-2:ilen) == '_av' ) THEN
255	j = 1 ! data averaging
256	do_mask(mid,i) = do_mask(mid,i)(1:ilen-3)
257	ENDIF
258	ENDIF
259	var = TRIM( do_mask(mid,i) )
260	!
261	!-- Check for allowed value and set units
262	SELECT CASE ( TRIM( var ) )
263
264	CASE ( 'e' )
265	IF ( constant_diffusion ) THEN
266	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
267	'" requires constant_diffusion = .FALSE.'
268	CALL message( 'init_masks', 'PA0103', 1, 2, 0, 6, 0 )
269	ENDIF
270	unit = 'm2/s2'
271
272	CASE ( 'lpt' )
273	IF ( .NOT. cloud_physics ) THEN
274	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
275	'" requires cloud_physics = .TRUE.'
276	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
277	ENDIF
278	unit = 'K'
279
280	CASE ( 'nr' )
281	IF ( .NOT. cloud_physics ) THEN
282	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
283	'" requires cloud_physics = .TRUE.'
284	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
285	ELSEIF ( .NOT. microphysics_seifert ) THEN
286	message_string = 'output of "' // TRIM( var ) // '" requi' // &
287	'res cloud_scheme = seifert_beheng'
288	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
289	ENDIF
290	unit = '1/m3'
291
292	CASE ( 'pc', 'pr' )
293	IF ( .NOT. particle_advection ) THEN
294	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
295	'" requires a "particles_par"-NAMELIST in the ', &
296	'parameter file (PARIN)'
297	CALL message( 'init_masks', 'PA0104', 1, 2, 0, 6, 0 )
298	ENDIF
299	IF ( TRIM( var ) == 'pc' ) unit = 'number'
300	IF ( TRIM( var ) == 'pr' ) unit = 'm'
301
302	CASE ( 'q', 'vpt' )
303	IF ( .NOT. humidity ) THEN
304	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
305	'" requires humidity = .TRUE.'
306	CALL message( 'init_masks', 'PA0105', 1, 2, 0, 6, 0 )
307	ENDIF
308	IF ( TRIM( var ) == 'q' ) unit = 'kg/kg'
309	IF ( TRIM( var ) == 'vpt' ) unit = 'K'
310
311	CASE ( 'qc' )
312	IF ( .NOT. cloud_physics ) THEN
313	message_string = 'output of "' // TRIM( var ) // '" requi' // &
314	'res cloud_physics = .TRUE.'
315	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
316	ENDIF
317	unit = 'kg/kg'
318
319	CASE ( 'ql' )
320	IF ( .NOT. ( cloud_physics .OR. cloud_droplets ) ) THEN
321	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
322	'" requires cloud_physics = .TRUE. or cloud_droplets', &
323	' = .TRUE.'
324	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
325	ENDIF
326	unit = 'kg/kg'
327
328	CASE ( 'ql_c', 'ql_v', 'ql_vp' )
329	IF ( .NOT. cloud_droplets ) THEN
330	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
331	'" requires cloud_droplets = .TRUE.'
332	CALL message( 'init_masks', 'PA0107', 1, 2, 0, 6, 0 )
333	ENDIF
334	IF ( TRIM( var ) == 'ql_c' ) unit = 'kg/kg'
335	IF ( TRIM( var ) == 'ql_v' ) unit = 'm3'
336	IF ( TRIM( var ) == 'ql_vp' ) unit = 'none'
337
338	CASE ( 'qv' )
339	IF ( .NOT. cloud_physics ) THEN
340	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
341	'" requires cloud_physics = .TRUE.'
342	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
343	ENDIF
344	unit = 'kg/kg'
345
346	CASE ( 'qr' )
347	IF ( .NOT. cloud_physics ) THEN
348	message_string = 'output of "' // TRIM( var ) // '" requi' // &
349	'res cloud_physics = .TRUE.'
350	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
351	ELSEIF ( .NOT. microphysics_seifert ) THEN
352	message_string = 'output of "' // TRIM( var ) // '" requi' // &
353	'res cloud_scheme = seifert_beheng'
354	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
355	ENDIF
356	unit = 'kg/kg'
357
358	CASE ( 'rho_ocean' )
359	IF ( .NOT. ocean ) THEN
360	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
361	'" requires ocean = .TRUE.'
362	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
363	ENDIF
364	unit = 'kg/m3'
365
366	CASE ( 's' )
367	IF ( .NOT. passive_scalar ) THEN
368	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
369	'" requires passive_scalar = .TRUE.'
370	CALL message( 'init_masks', 'PA0110', 1, 2, 0, 6, 0 )
371	ENDIF
372	unit = 'conc'
373
374	CASE ( 'sa' )
375	IF ( .NOT. ocean ) THEN
376	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
377	'" requires ocean = .TRUE.'
378	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
379	ENDIF
380	unit = 'psu'
381
382	CASE ( 'u', 't', 'lwp', 'pra', 'prr', 'z0', 'z0h*' )
383	WRITE ( message_string, * ) 'illegal value for data_',&
384	'output: "', TRIM( var ), '" is only allowed', &
385	'for horizontal cross section'
386	CALL message( 'init_masks', 'PA0111', 1, 2, 0, 6, 0 )
387
388	CASE ( 'p', 'pt', 'u', 'v', 'w' )
389	IF ( TRIM( var ) == 'p' ) unit = 'Pa'
390	IF ( TRIM( var ) == 'pt' ) unit = 'K'
391	IF ( TRIM( var ) == 'u' ) unit = 'm/s'
392	IF ( TRIM( var ) == 'v' ) unit = 'm/s'
393	IF ( TRIM( var ) == 'w' ) unit = 'm/s'
394	CONTINUE
395
396	CASE DEFAULT
397	CALL user_check_data_output( var, unit )
398
399	IF ( unit == 'illegal' ) THEN
400	IF ( do_mask_user(mid,1) /= ' ' ) THEN
401	WRITE ( message_string, * ) 'illegal value for data_',&
402	'output or data_output_user: "', &
403	TRIM( do_mask(mid,i) ), '"'
404	CALL message( 'init_masks', 'PA0114', 1, 2, 0, 6, 0 )
405	ELSE
406	WRITE ( message_string, * ) 'illegal value for data_',&
407	'output: "', TRIM( do_mask(mid,i) ), '"'
408	CALL message( 'init_masks', 'PA0330', 1, 2, 0, 6, 0 )
409	ENDIF
410	ENDIF
411
412	END SELECT
413	!
414	!-- Set the internal steering parameters appropriately
415	domask_no(mid,j) = domask_no(mid,j) + 1
416	domask(mid,j,domask_no(mid,j)) = do_mask(mid,i)
417	domask_unit(mid,j,domask_no(mid,j)) = unit
418
419	IF ( j == 1 ) THEN
420	!
421	!-- Check, if variable is already subject to averaging
422	found = .FALSE.
423	DO k = 1, doav_n
424	IF ( TRIM( doav(k) ) == TRIM( var ) ) found = .TRUE.
425	ENDDO
426
427	IF ( .NOT. found ) THEN
428	doav_n = doav_n + 1
429	doav(doav_n) = var
430	ENDIF
431	ENDIF
432
433	i = i + 1
434
435	ENDDO ! do_mask(mid,i)
436	ENDDO ! mid
437
438
439	!
440	!-- Determine mask locations for each mask
441	DO mid = 1, masks
442	!
443	!-- Set local masks for each subdomain along all three dimensions
444	CALL set_mask_locations( 1, dx, 'dx', nx, 'nx', nxl, nxr )
445	CALL set_mask_locations( 2, dy, 'dy', ny, 'ny', nys, nyn )
446	CALL set_mask_locations( 3, dz, 'dz', nz, 'nz', nzb, nzt )
447	!
448	!-- Set global masks along all three dimensions (required by
449	!-- define_netcdf_header).
450	#if defined( __parallel )
451	!
452	!-- PE0 receives partial arrays from all processors of the respective mask
453	!-- and outputs them. Here a barrier has to be set, because otherwise
454	!-- "-MPI- FATAL: Remote protocol queue full" may occur.
455
456	CALL MPI_BARRIER( comm2d, ierr )
457
458	IF ( myid == 0 ) THEN
459	!
460	!-- Local arrays can be relocated directly.
461	mask_i_global(mid,mask_start_l(mid,1): &
462	mask_start_l(mid,1)+mask_size_l(mid,1)-1) = &
463	mask_i(mid,:mask_size_l(mid,1))
464	mask_j_global(mid,mask_start_l(mid,2): &
465	mask_start_l(mid,2)+mask_size_l(mid,2)-1) = &
466	mask_j(mid,:mask_size_l(mid,2))
467	mask_k_global(mid,mask_start_l(mid,3): &
468	mask_start_l(mid,3)+mask_size_l(mid,3)-1) = &
469	mask_k(mid,:mask_size_l(mid,3))
470	!
471	!-- Receive data from all other PEs.
472	DO n = 1, numprocs-1
473	!
474	!-- Receive index limits first, then arrays.
475	!-- Index limits are received in arbitrary order from the PEs.
476	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, &
477	comm2d, status, ierr )
478	!
479	!-- Not all PEs have data for the mask.
480	IF ( ind(1) /= -9999 ) THEN
481	sender = status(MPI_SOURCE)
482	CALL MPI_RECV( tmp_array(ind(1)), ind(2)-ind(1)+1, &
483	MPI_INTEGER, sender, 1, comm2d, status, ierr )
484	mask_i_global(mid,ind(1):ind(2)) = tmp_array(ind(1):ind(2))
485	CALL MPI_RECV( tmp_array(ind(3)), ind(4)-ind(3)+1, &
486	MPI_INTEGER, sender, 2, comm2d, status, ierr )
487	mask_j_global(mid,ind(3):ind(4)) = tmp_array(ind(3):ind(4))
488	CALL MPI_RECV( tmp_array(ind(5)), ind(6)-ind(5)+1, &
489	MPI_INTEGER, sender, 3, comm2d, status, ierr )
490	mask_k_global(mid,ind(5):ind(6)) = tmp_array(ind(5):ind(6))
491	ENDIF
492	ENDDO
493
494	ELSE
495	!
496	!-- If at least part of the mask resides on the PE, send the index limits
497	!-- for the target array, otherwise send -9999 to PE0.
498	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
499	mask_size_l(mid,3) > 0 ) THEN
500	ind(1) = mask_start_l(mid,1)
501	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
502	ind(3) = mask_start_l(mid,2)
503	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
504	ind(5) = mask_start_l(mid,3)
505	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
506	ELSE
507	ind(1) = -9999; ind(2) = -9999
508	ind(3) = -9999; ind(4) = -9999
509	ind(5) = -9999; ind(6) = -9999
510	ENDIF
511	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
512	!
513	!-- If applicable, send data to PE0.
514	IF ( ind(1) /= -9999 ) THEN
515	tmp_array(:mask_size_l(mid,1)) = mask_i(mid,:mask_size_l(mid,1))
516	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,1), &
517	MPI_INTEGER, 0, 1, comm2d, ierr )
518	tmp_array(:mask_size_l(mid,2)) = mask_j(mid,:mask_size_l(mid,2))
519	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,2), &
520	MPI_INTEGER, 0, 2, comm2d, ierr )
521	tmp_array(:mask_size_l(mid,3)) = mask_k(mid,:mask_size_l(mid,3))
522	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,3), &
523	MPI_INTEGER, 0, 3, comm2d, ierr )
524	ENDIF
525	ENDIF
526	!
527	!-- A barrier has to be set, because otherwise some PEs may proceed too fast
528	!-- so that PE0 may receive wrong data on tag 0.
529	CALL MPI_BARRIER( comm2d, ierr )
530
531	IF ( netcdf_data_format > 4 ) THEN
532
533	CALL MPI_BCAST( mask_i_global(mid,:), nx+2, MPI_INTEGER, 0, comm2d, &
534	ierr )
535	CALL MPI_BCAST( mask_j_global(mid,:), ny+2, MPI_INTEGER, 0, comm2d, &
536	ierr )
537	CALL MPI_BCAST( mask_k_global(mid,:), nz+2, MPI_INTEGER, 0, comm2d, &
538	ierr )
539
540	ENDIF
541
542	#else
543	!
544	!-- Local arrays can be relocated directly.
545	mask_i_global(mid,:) = mask_i(mid,:)
546	mask_j_global(mid,:) = mask_j(mid,:)
547	mask_k_global(mid,:) = mask_k(mid,:)
548	#endif
549	ENDDO ! mid
550
551	DEALLOCATE( tmp_array )
552	!
553	!-- Internal mask arrays cannot be deallocated on PE 0 because they are
554	!-- required for header output on PE 0.
555	IF ( myid /= 0 ) DEALLOCATE( mask, mask_loop )
556
557	CONTAINS
558
559	!------------------------------------------------------------------------------!
560	! Description:
561	! ------------
562	!> Set local mask for each subdomain along 'dim' direction.
563	!------------------------------------------------------------------------------!
564	SUBROUTINE set_mask_locations( dim, dxyz, dxyz_string, nxyz, nxyz_string, &
565	lb, ub )
566
567	IMPLICIT NONE
568
569	CHARACTER (LEN=2) :: dxyz_string !<
570	CHARACTER (LEN=2) :: nxyz_string !<
571
572	INTEGER(iwp) :: count !<
573	INTEGER(iwp) :: count_l !<
574	INTEGER(iwp) :: dim !<
575	INTEGER(iwp) :: m !<
576	INTEGER(iwp) :: loop_begin !<
577	INTEGER(iwp) :: loop_end !<
578	INTEGER(iwp) :: loop_stride !<
579	INTEGER(iwp) :: lb !<
580	INTEGER(iwp) :: nxyz !<
581	INTEGER(iwp) :: ub !<
582
583	REAL(wp) :: dxyz !<
584	REAL(wp) :: ddxyz !<
585	REAL(wp) :: tmp1 !<
586	REAL(wp) :: tmp2 !<
587
588	count = 0; count_l = 0
589	ddxyz = 1.0_wp / dxyz
590	tmp1 = 0.0_wp
591	tmp2 = 0.0_wp
592
593	IF ( mask(mid,dim,1) >= 0.0_wp ) THEN
594	!
595	!-- use predefined mask_* array
596	DO WHILE ( mask(mid,dim,count+1) >= 0.0_wp )
597	count = count + 1
598	IF ( dim == 1 .OR. dim == 2 ) THEN
599	m = NINT( mask(mid,dim,count) * mask_scale(dim) * ddxyz - 0.5_wp )
600	IF ( m < 0 ) m = 0 ! avoid negative values
601	ELSEIF ( dim == 3 ) THEN
602	ind_array = &
603	MINLOC( ABS( mask(mid,dim,count) * mask_scale(dim) - zu ) )
604	m = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
605	ENDIF
606	IF ( m > (nxyz+1) ) THEN
607	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
608	m,' in mask ',mid,' along dimension ',dim, &
609	' exceeds (',nxyz_string,'+1) = ',nxyz+1
610	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
611	ENDIF
612	IF ( ( m >= lb .AND. m <= ub ) .OR. &
613	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
614	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
615	count_l = count_l + 1
616	IF ( dim == 1 ) THEN
617	mask_i(mid,count_l) = m
618	ELSEIF ( dim == 2 ) THEN
619	mask_j(mid,count_l) = m
620	ELSEIF ( dim == 3 ) THEN
621	mask_k(mid,count_l) = m
622	ENDIF
623	ENDIF
624	IF ( count == mask_xyz_dimension ) EXIT
625	ENDDO
626	mask_size(mid,dim) = count
627	mask_size_l(mid,dim) = count_l
628
629	ELSE
630	!
631	!-- use predefined mask_loop_* array, or use the default (all grid points
632	!-- along this direction)
633	IF ( mask_loop(mid,dim,1) < 0.0_wp ) THEN
634	tmp1 = mask_loop(mid,dim,1)
635	mask_loop(mid,dim,1) = zw(nzb) ! lowest level (default)
636	ENDIF
637	IF ( dim == 1 .OR. dim == 2 ) THEN
638	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
639	tmp2 = mask_loop(mid,dim,2)
640	mask_loop(mid,dim,2) = (nxyz+1)*dxyz / mask_scale(dim) ! (default)
641	ENDIF
642	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
643	> (nxyz+1) * dxyz / mask_scale(dim) ) THEN
644	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),5A,I1,A,F9.3)' ) &
645	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
646	' and/or mask_loop(',mid,',',dim,',2)=', &
647	mask_loop(mid,dim,2),'&exceed (', &
648	nxyz_string,'+1)*',dxyz_string,'/mask_scale(',dim,')=', &
649	(nxyz+1)*dxyz/mask_scale(dim)
650	CALL message( 'init_masks', 'PA0332', 1, 2, 0, 6, 0 )
651	ENDIF
652	loop_begin = NINT( mask_loop(mid,dim,1) * mask_scale(dim) &
653	* ddxyz - 0.5_wp )
654	loop_end = NINT( mask_loop(mid,dim,2) * mask_scale(dim) &
655	* ddxyz - 0.5_wp )
656	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) &
657	* ddxyz )
658	IF ( loop_begin == -1 ) loop_begin = 0 ! avoid negative values
659	ELSEIF ( dim == 3 ) THEN
660	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
661	tmp2 = mask_loop(mid,dim,2)
662	mask_loop(mid,dim,2) = zu(nz+1) / mask_scale(dim) ! (default)
663	ENDIF
664	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
665	> zu(nz+1) / mask_scale(dim) ) THEN
666	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),A,I1,A,F9.3)' ) &
667	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
668	' and/or mask_loop(',mid,',',dim,',2)=', &
669	mask_loop(mid,dim,2),'&exceed zu(nz+1)/mask_scale(',dim, &
670	')=',zu(nz+1)/mask_scale(dim)
671	CALL message( 'init_masks', 'PA0333', 1, 2, 0, 6, 0 )
672	ENDIF
673	ind_array = &
674	MINLOC( ABS( mask_loop(mid,dim,1) * mask_scale(dim) - zu ) )
675	loop_begin = &
676	ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
677	ind_array = &
678	MINLOC( ABS( mask_loop(mid,dim,2) * mask_scale(dim) - zu ) )
679	loop_end = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
680	!
681	!-- The following line assumes a constant vertical grid spacing within
682	!-- the vertical mask range; it fails for vertical grid stretching.
683	!-- Maybe revise later. Issue warning but continue execution.
684	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) * ddxyz )
685
686	IF ( mask_loop(mid,dim,2) * mask_scale(dim) > dz_stretch_level ) &
687	THEN
688	WRITE ( message_string, '(A,I3,A,I1,A,F9.3,A,F8.2,3A)' ) &
689	'mask_loop(',mid,',',dim,',2)=', mask_loop(mid,dim,2),&
690	' exceeds dz_stretch_level=',dz_stretch_level, &
691	'.&Vertical mask locations will not ', &
692	'match the desired heights&within the stretching ', &
693	'region.'
694	CALL message( 'init_masks', 'PA0334', 0, 1, 0, 6, 0 )
695	ENDIF
696
697	ENDIF
698	!
699	!-- If necessary, reset mask_loop(mid,dim,1) and mask_loop(mid,dim,2).
700	IF ( tmp1 < 0.0_wp ) mask_loop(mid,dim,1) = tmp1
701	IF ( tmp2 < 0.0_wp ) mask_loop(mid,dim,2) = tmp2
702	!
703	!-- The default stride +/-1 (every grid point) applies if
704	!-- mask_loop(mid,dim,3) is not specified (its default is zero).
705	IF ( loop_stride == 0 ) THEN
706	IF ( loop_end >= loop_begin ) THEN
707	loop_stride = 1
708	ELSE
709	loop_stride = -1
710	ENDIF
711	ENDIF
712	DO m = loop_begin, loop_end, loop_stride
713	count = count + 1
714	IF ( ( m >= lb .AND. m <= ub ) .OR. &
715	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
716	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
717	count_l = count_l + 1
718	IF ( dim == 1 ) THEN
719	mask_i(mid,count_l) = m
720	ELSEIF ( dim == 2 ) THEN
721	mask_j(mid,count_l) = m
722	ELSEIF ( dim == 3 ) THEN
723	mask_k(mid,count_l) = m
724	ENDIF
725	ENDIF
726	ENDDO
727	mask_size(mid,dim) = count
728	mask_size_l(mid,dim) = count_l
729
730	ENDIF
731
732	END SUBROUTINE set_mask_locations
733
734	END SUBROUTINE init_masks

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