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source: palm/trunk/SOURCE/init_masks.f90 @ 1982

Last change on this file since 1982 was 1823, checked in by hoffmann, 9 years ago
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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 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	!
16	! Copyright 1997-2016 Leibniz Universitaet Hannover
17	!--------------------------------------------------------------------------------!
18	!
19	! Current revisions:
20	! -----------------
21	!
22	!
23	! Former revisions:
24	! -----------------
25	! $Id: init_masks.f90 1823 2016-04-07 08:57:52Z suehring $
26	!
27	! 1822 2016-04-07 07:49:42Z hoffmann
28	! icloud_scheme replaced by microphysics_*
29	!
30	! 1804 2016-04-05 16:30:18Z maronga
31	! Removed code for parameter file check (__check)
32	!
33	! 1783 2016-03-06 18:36:17Z raasch
34	! netcdf module name changed + related changes
35	!
36	! 1682 2015-10-07 23:56:08Z knoop
37	! Code annotations made doxygen readable
38	!
39	! 1438 2014-07-22 14:14:06Z heinze
40	! +nr, qc, qr
41	!
42	! 1414 2014-05-31 11:19:48Z gronemeier
43	! Bugfix: first and last grid points as they appear in 3D volume data can now
44	! be included to masked data output
45	!
46	! 1353 2014-04-08 15:21:23Z heinze
47	! REAL constants provided with KIND-attribute
48	!
49	! 1324 2014-03-21 09:13:16Z suehring
50	! Bugfix: ONLY statement for module netcdf_control removed
51	!
52	! 1320 2014-03-20 08:40:49Z raasch
53	! ONLY-attribute added to USE-statements,
54	! kind-parameters added to all INTEGER and REAL declaration statements,
55	! kinds are defined in new module kinds,
56	! revision history before 2012 removed,
57	! comment fields (!:) to be used for variable explanations added to
58	! all variable declaration statements
59	!
60	! 1186 2013-06-18 06:22:52Z raasch
61	! bugfix: 0.0 replaced by zu(nzb) as the lowest default height level for masks,
62	! because a zero value does not work in case of ocean runs
63	!
64	! 1036 2012-10-22 13:43:42Z raasch
65	! code put under GPL (PALM 3.9)
66	!
67	! 1032 2012-10-21 13:03:21Z letzel
68	! mask locations determined based on scalar positions
69	!
70	! 1031 2012-10-19 14:35:30Z raasch
71	! netCDF4 without parallel file support implemented
72	!
73	! 996 2012-09-07 10:41:47Z raasch
74	! little reformatting
75	!
76	! 978 2012-08-09 08:28:32Z fricke
77	! +z0h*
78	!
79	! 809 2012-01-30 13:32:58Z maronga
80	! Bugfix: replaced .AND. and .NOT. with && and ! in the preprocessor directives
81	!
82	! 807 2012-01-25 11:53:51Z maronga
83	! New cpp directive "__check" implemented which is used by check_namelist_files
84	!
85	! 410 2009-12-04 17:05:40Z letzel
86	! Initial revision
87	!
88	!
89	! Description:
90	! ------------
91	!> Initialize masked data output
92	!------------------------------------------------------------------------------!
93	SUBROUTINE init_masks
94
95	USE arrays_3d, &
96	ONLY: zu, zw
97
98	USE control_parameters, &
99	ONLY: constant_diffusion, cloud_droplets, cloud_physics, &
100	data_output_masks, data_output_masks_user, &
101	doav, doav_n, domask, domask_no, dz, dz_stretch_level, humidity,&
102	mask, masks, mask_scale, mask_i, &
103	mask_i_global, mask_j, mask_j_global, mask_k, mask_k_global, &
104	mask_loop, mask_size, mask_size_l, mask_start_l, mask_x, &
105	mask_x_loop, mask_xyz_dimension, mask_y, mask_y_loop, mask_z, &
106	mask_z_loop, max_masks, message_string, mid, &
107	microphysics_seifert, passive_scalar, ocean
108
109	USE grid_variables, &
110	ONLY: dx, dy
111
112	USE indices, &
113	ONLY: nx, nxl, nxr, ny, nyn, nys, nz, nzb, nzt
114
115	USE kinds
116
117	USE netcdf_interface, &
118	ONLY: domask_unit, netcdf_data_format
119
120	USE particle_attributes, &
121	ONLY: particle_advection
122
123	USE pegrid
124
125	IMPLICIT NONE
126
127	CHARACTER (LEN=6) :: var !<
128	CHARACTER (LEN=7) :: unit !<
129
130	CHARACTER (LEN=10), DIMENSION(max_masks,100) :: do_mask !<
131	CHARACTER (LEN=10), DIMENSION(max_masks,100) :: do_mask_user !<
132
133	INTEGER(iwp) :: i !<
134	INTEGER(iwp) :: ilen !<
135	INTEGER(iwp) :: ind(6) !<
136	INTEGER(iwp) :: ind_array(1) !<
137	INTEGER(iwp) :: j !<
138	INTEGER(iwp) :: k !<
139	INTEGER(iwp) :: n !<
140	INTEGER(iwp) :: sender !<
141
142	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: tmp_array !<
143
144	LOGICAL :: found !<
145	!
146	!-- Allocation and initialization
147	ALLOCATE( tmp_array( MAX(nx,ny,nz)+2 ) )
148
149	ALLOCATE( mask_i(max_masks,nxr-nxl+2), &
150	mask_j(max_masks,nyn-nys+2), &
151	mask_k(max_masks,nzt-nzb+2) )
152	!
153	!-- internal mask arrays ("mask,dimension,selection")
154	ALLOCATE( mask(max_masks,3,mask_xyz_dimension), &
155	mask_loop(max_masks,3,3) )
156
157	!
158	!-- Parallel mask output not yet tested
159	IF ( netcdf_data_format > 4 ) THEN
160	message_string = 'netCDF file formats '// &
161	'3 (netCDF 4) and 4 (netCDF 4 Classic model)'// &
162	'&are currently not supported (not yet tested).'
163	CALL message( 'init_masks', 'PA0328', 1, 2, 0, 6, 0 )
164	ENDIF
165
166	!
167	!-- Store data output parameters for masked data output in few shared arrays
168	DO mid = 1, masks
169
170	do_mask (mid,:) = data_output_masks(mid,:)
171	do_mask_user(mid,:) = data_output_masks_user(mid,:)
172	mask (mid,1,:) = mask_x(mid,:)
173	mask (mid,2,:) = mask_y(mid,:)
174	mask (mid,3,:) = mask_z(mid,:)
175
176	IF ( mask_x_loop(mid,1) == -1.0_wp .AND. mask_x_loop(mid,2) == -1.0_wp&
177	.AND. mask_x_loop(mid,3) == -1.0_wp ) THEN
178	mask_loop(mid,1,1:2) = -1.0_wp
179	mask_loop(mid,1,3) = 0.0_wp
180	ELSE
181	mask_loop(mid,1,:) = mask_x_loop(mid,:)
182	ENDIF
183	IF ( mask_y_loop(mid,1) == -1.0_wp .AND. mask_y_loop(mid,2) == -1.0_wp&
184	.AND. mask_y_loop(mid,3) == -1.0_wp ) THEN
185	mask_loop(mid,2,1:2) = -1.0_wp
186	mask_loop(mid,2,3) = 0.0_wp
187	ELSE
188	mask_loop(mid,2,:) = mask_y_loop(mid,:)
189	ENDIF
190	IF ( mask_z_loop(mid,1) == -1.0_wp .AND. mask_z_loop(mid,2) == -1.0_wp&
191	.AND. mask_z_loop(mid,3) == -1.0_wp ) THEN
192	mask_loop(mid,3,1:2) = -1.0_wp
193	mask_loop(mid,3,3) = 0.0_wp
194	ELSE
195	mask_loop(mid,3,:) = mask_z_loop(mid,:)
196	ENDIF
197
198	ENDDO
199
200	mask_i = -1; mask_j = -1; mask_k = -1
201
202	!
203	!-- Global arrays are required by define_netcdf_header.
204	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
205	ALLOCATE( mask_i_global(max_masks,nx+2), &
206	mask_j_global(max_masks,ny+2), &
207	mask_k_global(max_masks,nz+2) )
208	mask_i_global = -1; mask_j_global = -1; mask_k_global = -1
209	ENDIF
210
211	!
212	!-- Determine variable names for each mask
213	DO mid = 1, masks
214	!
215	!-- Append user-defined data output variables to the standard data output
216	IF ( do_mask_user(mid,1) /= ' ' ) THEN
217	i = 1
218	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
219	i = i + 1
220	ENDDO
221	j = 1
222	DO WHILE ( do_mask_user(mid,j) /= ' ' .AND. j <= 100 )
223	IF ( i > 100 ) THEN
224	WRITE ( message_string, * ) 'number of output quantitities ', &
225	'given by data_output_mask and data_output_mask_user ', &
226	'exceeds the limit of 100'
227	CALL message( 'init_masks', 'PA0329', 1, 2, 0, 6, 0 )
228	ENDIF
229	do_mask(mid,i) = do_mask_user(mid,j)
230	i = i + 1
231	j = j + 1
232	ENDDO
233	ENDIF
234
235	!
236	!-- Check and set steering parameters for mask data output and averaging
237	i = 1
238	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
239	!
240	!-- Check for data averaging
241	ilen = LEN_TRIM( do_mask(mid,i) )
242	j = 0 ! no data averaging
243	IF ( ilen > 3 ) THEN
244	IF ( do_mask(mid,i)(ilen-2:ilen) == '_av' ) THEN
245	j = 1 ! data averaging
246	do_mask(mid,i) = do_mask(mid,i)(1:ilen-3)
247	ENDIF
248	ENDIF
249	var = TRIM( do_mask(mid,i) )
250	!
251	!-- Check for allowed value and set units
252	SELECT CASE ( TRIM( var ) )
253
254	CASE ( 'e' )
255	IF ( constant_diffusion ) THEN
256	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
257	'" requires constant_diffusion = .FALSE.'
258	CALL message( 'init_masks', 'PA0103', 1, 2, 0, 6, 0 )
259	ENDIF
260	unit = 'm2/s2'
261
262	CASE ( 'lpt' )
263	IF ( .NOT. cloud_physics ) THEN
264	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
265	'" requires cloud_physics = .TRUE.'
266	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
267	ENDIF
268	unit = 'K'
269
270	CASE ( 'nr' )
271	IF ( .NOT. cloud_physics ) THEN
272	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
273	'" requires cloud_physics = .TRUE.'
274	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
275	ELSEIF ( .NOT. microphysics_seifert ) THEN
276	message_string = 'output of "' // TRIM( var ) // '" requi' // &
277	'res cloud_scheme = seifert_beheng'
278	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
279	ENDIF
280	unit = '1/m3'
281
282	CASE ( 'pc', 'pr' )
283	IF ( .NOT. particle_advection ) THEN
284	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
285	'" requires a "particles_par"-NAMELIST in the ', &
286	'parameter file (PARIN)'
287	CALL message( 'init_masks', 'PA0104', 1, 2, 0, 6, 0 )
288	ENDIF
289	IF ( TRIM( var ) == 'pc' ) unit = 'number'
290	IF ( TRIM( var ) == 'pr' ) unit = 'm'
291
292	CASE ( 'q', 'vpt' )
293	IF ( .NOT. humidity ) THEN
294	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
295	'" requires humidity = .TRUE.'
296	CALL message( 'init_masks', 'PA0105', 1, 2, 0, 6, 0 )
297	ENDIF
298	IF ( TRIM( var ) == 'q' ) unit = 'kg/kg'
299	IF ( TRIM( var ) == 'vpt' ) unit = 'K'
300
301	CASE ( 'qc' )
302	IF ( .NOT. cloud_physics ) THEN
303	message_string = 'output of "' // TRIM( var ) // '" requi' // &
304	'res cloud_physics = .TRUE.'
305	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
306	ENDIF
307	unit = 'kg/kg'
308
309	CASE ( 'ql' )
310	IF ( .NOT. ( cloud_physics .OR. cloud_droplets ) ) THEN
311	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
312	'" requires cloud_physics = .TRUE. or cloud_droplets', &
313	' = .TRUE.'
314	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
315	ENDIF
316	unit = 'kg/kg'
317
318	CASE ( 'ql_c', 'ql_v', 'ql_vp' )
319	IF ( .NOT. cloud_droplets ) THEN
320	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
321	'" requires cloud_droplets = .TRUE.'
322	CALL message( 'init_masks', 'PA0107', 1, 2, 0, 6, 0 )
323	ENDIF
324	IF ( TRIM( var ) == 'ql_c' ) unit = 'kg/kg'
325	IF ( TRIM( var ) == 'ql_v' ) unit = 'm3'
326	IF ( TRIM( var ) == 'ql_vp' ) unit = 'none'
327
328	CASE ( 'qv' )
329	IF ( .NOT. cloud_physics ) THEN
330	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
331	'" requires cloud_physics = .TRUE.'
332	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
333	ENDIF
334	unit = 'kg/kg'
335
336	CASE ( 'qr' )
337	IF ( .NOT. cloud_physics ) THEN
338	message_string = 'output of "' // TRIM( var ) // '" requi' // &
339	'res cloud_physics = .TRUE.'
340	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
341	ELSEIF ( .NOT. microphysics_seifert ) THEN
342	message_string = 'output of "' // TRIM( var ) // '" requi' // &
343	'res cloud_scheme = seifert_beheng'
344	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
345	ENDIF
346	unit = 'kg/kg'
347
348	CASE ( 'rho' )
349	IF ( .NOT. ocean ) THEN
350	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
351	'" requires ocean = .TRUE.'
352	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
353	ENDIF
354	unit = 'kg/m3'
355
356	CASE ( 's' )
357	IF ( .NOT. passive_scalar ) THEN
358	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
359	'" requires passive_scalar = .TRUE.'
360	CALL message( 'init_masks', 'PA0110', 1, 2, 0, 6, 0 )
361	ENDIF
362	unit = 'conc'
363
364	CASE ( 'sa' )
365	IF ( .NOT. ocean ) THEN
366	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
367	'" requires ocean = .TRUE.'
368	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
369	ENDIF
370	unit = 'psu'
371
372	CASE ( 'u', 't', 'lwp', 'pra', 'prr', 'z0', 'z0h*' )
373	WRITE ( message_string, * ) 'illegal value for data_',&
374	'output: "', TRIM( var ), '" is only allowed', &
375	'for horizontal cross section'
376	CALL message( 'init_masks', 'PA0111', 1, 2, 0, 6, 0 )
377
378	CASE ( 'p', 'pt', 'u', 'v', 'w' )
379	IF ( TRIM( var ) == 'p' ) unit = 'Pa'
380	IF ( TRIM( var ) == 'pt' ) unit = 'K'
381	IF ( TRIM( var ) == 'u' ) unit = 'm/s'
382	IF ( TRIM( var ) == 'v' ) unit = 'm/s'
383	IF ( TRIM( var ) == 'w' ) unit = 'm/s'
384	CONTINUE
385
386	CASE DEFAULT
387	CALL user_check_data_output( var, unit )
388
389	IF ( unit == 'illegal' ) THEN
390	IF ( do_mask_user(mid,1) /= ' ' ) THEN
391	WRITE ( message_string, * ) 'illegal value for data_',&
392	'output or data_output_user: "', &
393	TRIM( do_mask(mid,i) ), '"'
394	CALL message( 'init_masks', 'PA0114', 1, 2, 0, 6, 0 )
395	ELSE
396	WRITE ( message_string, * ) 'illegal value for data_',&
397	'output: "', TRIM( do_mask(mid,i) ), '"'
398	CALL message( 'init_masks', 'PA0330', 1, 2, 0, 6, 0 )
399	ENDIF
400	ENDIF
401
402	END SELECT
403	!
404	!-- Set the internal steering parameters appropriately
405	domask_no(mid,j) = domask_no(mid,j) + 1
406	domask(mid,j,domask_no(mid,j)) = do_mask(mid,i)
407	domask_unit(mid,j,domask_no(mid,j)) = unit
408
409	IF ( j == 1 ) THEN
410	!
411	!-- Check, if variable is already subject to averaging
412	found = .FALSE.
413	DO k = 1, doav_n
414	IF ( TRIM( doav(k) ) == TRIM( var ) ) found = .TRUE.
415	ENDDO
416
417	IF ( .NOT. found ) THEN
418	doav_n = doav_n + 1
419	doav(doav_n) = var
420	ENDIF
421	ENDIF
422
423	i = i + 1
424
425	ENDDO ! do_mask(mid,i)
426	ENDDO ! mid
427
428
429	!
430	!-- Determine mask locations for each mask
431	DO mid = 1, masks
432	!
433	!-- Set local masks for each subdomain along all three dimensions
434	CALL set_mask_locations( 1, dx, 'dx', nx, 'nx', nxl, nxr )
435	CALL set_mask_locations( 2, dy, 'dy', ny, 'ny', nys, nyn )
436	CALL set_mask_locations( 3, dz, 'dz', nz, 'nz', nzb, nzt )
437	!
438	!-- Set global masks along all three dimensions (required by
439	!-- define_netcdf_header).
440	#if defined( __parallel )
441	!
442	!-- PE0 receives partial arrays from all processors of the respective mask
443	!-- and outputs them. Here a barrier has to be set, because otherwise
444	!-- "-MPI- FATAL: Remote protocol queue full" may occur.
445
446	CALL MPI_BARRIER( comm2d, ierr )
447
448	IF ( myid == 0 ) THEN
449	!
450	!-- Local arrays can be relocated directly.
451	mask_i_global(mid,mask_start_l(mid,1): &
452	mask_start_l(mid,1)+mask_size_l(mid,1)-1) = &
453	mask_i(mid,:mask_size_l(mid,1))
454	mask_j_global(mid,mask_start_l(mid,2): &
455	mask_start_l(mid,2)+mask_size_l(mid,2)-1) = &
456	mask_j(mid,:mask_size_l(mid,2))
457	mask_k_global(mid,mask_start_l(mid,3): &
458	mask_start_l(mid,3)+mask_size_l(mid,3)-1) = &
459	mask_k(mid,:mask_size_l(mid,3))
460	!
461	!-- Receive data from all other PEs.
462	DO n = 1, numprocs-1
463	!
464	!-- Receive index limits first, then arrays.
465	!-- Index limits are received in arbitrary order from the PEs.
466	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, &
467	comm2d, status, ierr )
468	!
469	!-- Not all PEs have data for the mask.
470	IF ( ind(1) /= -9999 ) THEN
471	sender = status(MPI_SOURCE)
472	CALL MPI_RECV( tmp_array(ind(1)), ind(2)-ind(1)+1, &
473	MPI_INTEGER, sender, 1, comm2d, status, ierr )
474	mask_i_global(mid,ind(1):ind(2)) = tmp_array(ind(1):ind(2))
475	CALL MPI_RECV( tmp_array(ind(3)), ind(4)-ind(3)+1, &
476	MPI_INTEGER, sender, 2, comm2d, status, ierr )
477	mask_j_global(mid,ind(3):ind(4)) = tmp_array(ind(3):ind(4))
478	CALL MPI_RECV( tmp_array(ind(5)), ind(6)-ind(5)+1, &
479	MPI_INTEGER, sender, 3, comm2d, status, ierr )
480	mask_k_global(mid,ind(5):ind(6)) = tmp_array(ind(5):ind(6))
481	ENDIF
482	ENDDO
483
484	ELSE
485	!
486	!-- If at least part of the mask resides on the PE, send the index limits
487	!-- for the target array, otherwise send -9999 to PE0.
488	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
489	mask_size_l(mid,3) > 0 ) THEN
490	ind(1) = mask_start_l(mid,1)
491	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
492	ind(3) = mask_start_l(mid,2)
493	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
494	ind(5) = mask_start_l(mid,3)
495	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
496	ELSE
497	ind(1) = -9999; ind(2) = -9999
498	ind(3) = -9999; ind(4) = -9999
499	ind(5) = -9999; ind(6) = -9999
500	ENDIF
501	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
502	!
503	!-- If applicable, send data to PE0.
504	IF ( ind(1) /= -9999 ) THEN
505	tmp_array(:mask_size_l(mid,1)) = mask_i(mid,:mask_size_l(mid,1))
506	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,1), &
507	MPI_INTEGER, 0, 1, comm2d, ierr )
508	tmp_array(:mask_size_l(mid,2)) = mask_j(mid,:mask_size_l(mid,2))
509	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,2), &
510	MPI_INTEGER, 0, 2, comm2d, ierr )
511	tmp_array(:mask_size_l(mid,3)) = mask_k(mid,:mask_size_l(mid,3))
512	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,3), &
513	MPI_INTEGER, 0, 3, comm2d, ierr )
514	ENDIF
515	ENDIF
516	!
517	!-- A barrier has to be set, because otherwise some PEs may proceed too fast
518	!-- so that PE0 may receive wrong data on tag 0.
519	CALL MPI_BARRIER( comm2d, ierr )
520
521	IF ( netcdf_data_format > 4 ) THEN
522
523	CALL MPI_BCAST( mask_i_global(mid,:), nx+2, MPI_INTEGER, 0, comm2d, &
524	ierr )
525	CALL MPI_BCAST( mask_j_global(mid,:), ny+2, MPI_INTEGER, 0, comm2d, &
526	ierr )
527	CALL MPI_BCAST( mask_k_global(mid,:), nz+2, MPI_INTEGER, 0, comm2d, &
528	ierr )
529
530	ENDIF
531
532	#else
533	!
534	!-- Local arrays can be relocated directly.
535	mask_i_global(mid,:) = mask_i(mid,:)
536	mask_j_global(mid,:) = mask_j(mid,:)
537	mask_k_global(mid,:) = mask_k(mid,:)
538	#endif
539	ENDDO ! mid
540
541	DEALLOCATE( tmp_array )
542	!
543	!-- Internal mask arrays cannot be deallocated on PE 0 because they are
544	!-- required for header output on PE 0.
545	IF ( myid /= 0 ) DEALLOCATE( mask, mask_loop )
546
547	CONTAINS
548
549	!------------------------------------------------------------------------------!
550	! Description:
551	! ------------
552	!> Set local mask for each subdomain along 'dim' direction.
553	!------------------------------------------------------------------------------!
554	SUBROUTINE set_mask_locations( dim, dxyz, dxyz_string, nxyz, nxyz_string, &
555	lb, ub )
556
557	IMPLICIT NONE
558
559	CHARACTER (LEN=2) :: dxyz_string !<
560	CHARACTER (LEN=2) :: nxyz_string !<
561
562	INTEGER(iwp) :: count !<
563	INTEGER(iwp) :: count_l !<
564	INTEGER(iwp) :: dim !<
565	INTEGER(iwp) :: m !<
566	INTEGER(iwp) :: loop_begin !<
567	INTEGER(iwp) :: loop_end !<
568	INTEGER(iwp) :: loop_stride !<
569	INTEGER(iwp) :: lb !<
570	INTEGER(iwp) :: nxyz !<
571	INTEGER(iwp) :: ub !<
572
573	REAL(wp) :: dxyz !<
574	REAL(wp) :: ddxyz !<
575	REAL(wp) :: tmp1 !<
576	REAL(wp) :: tmp2 !<
577
578	count = 0; count_l = 0
579	ddxyz = 1.0_wp / dxyz
580	tmp1 = 0.0_wp
581	tmp2 = 0.0_wp
582
583	IF ( mask(mid,dim,1) >= 0.0_wp ) THEN
584	!
585	!-- use predefined mask_* array
586	DO WHILE ( mask(mid,dim,count+1) >= 0.0_wp )
587	count = count + 1
588	IF ( dim == 1 .OR. dim == 2 ) THEN
589	m = NINT( mask(mid,dim,count) * mask_scale(dim) * ddxyz - 0.5_wp )
590	IF ( m < 0 ) m = 0 ! avoid negative values
591	ELSEIF ( dim == 3 ) THEN
592	ind_array = &
593	MINLOC( ABS( mask(mid,dim,count) * mask_scale(dim) - zu ) )
594	m = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
595	ENDIF
596	IF ( m > (nxyz+1) ) THEN
597	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
598	m,' in mask ',mid,' along dimension ',dim, &
599	' exceeds (',nxyz_string,'+1) = ',nxyz+1
600	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
601	ENDIF
602	IF ( ( m >= lb .AND. m <= ub ) .OR. &
603	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
604	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
605	count_l = count_l + 1
606	IF ( dim == 1 ) THEN
607	mask_i(mid,count_l) = m
608	ELSEIF ( dim == 2 ) THEN
609	mask_j(mid,count_l) = m
610	ELSEIF ( dim == 3 ) THEN
611	mask_k(mid,count_l) = m
612	ENDIF
613	ENDIF
614	IF ( count == mask_xyz_dimension ) EXIT
615	ENDDO
616	mask_size(mid,dim) = count
617	mask_size_l(mid,dim) = count_l
618
619	ELSE
620	!
621	!-- use predefined mask_loop_* array, or use the default (all grid points
622	!-- along this direction)
623	IF ( mask_loop(mid,dim,1) < 0.0_wp ) THEN
624	tmp1 = mask_loop(mid,dim,1)
625	mask_loop(mid,dim,1) = zw(nzb) ! lowest level (default)
626	ENDIF
627	IF ( dim == 1 .OR. dim == 2 ) THEN
628	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
629	tmp2 = mask_loop(mid,dim,2)
630	mask_loop(mid,dim,2) = (nxyz+1)*dxyz / mask_scale(dim) ! (default)
631	ENDIF
632	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
633	> (nxyz+1) * dxyz / mask_scale(dim) ) THEN
634	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),5A,I1,A,F9.3)' ) &
635	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
636	' and/or mask_loop(',mid,',',dim,',2)=', &
637	mask_loop(mid,dim,2),'&exceed (', &
638	nxyz_string,'+1)*',dxyz_string,'/mask_scale(',dim,')=', &
639	(nxyz+1)*dxyz/mask_scale(dim)
640	CALL message( 'init_masks', 'PA0332', 1, 2, 0, 6, 0 )
641	ENDIF
642	loop_begin = NINT( mask_loop(mid,dim,1) * mask_scale(dim) &
643	* ddxyz - 0.5_wp )
644	loop_end = NINT( mask_loop(mid,dim,2) * mask_scale(dim) &
645	* ddxyz - 0.5_wp )
646	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) &
647	* ddxyz )
648	IF ( loop_begin == -1 ) loop_begin = 0 ! avoid negative values
649	ELSEIF ( dim == 3 ) THEN
650	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
651	tmp2 = mask_loop(mid,dim,2)
652	mask_loop(mid,dim,2) = zu(nz+1) / mask_scale(dim) ! (default)
653	ENDIF
654	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
655	> zu(nz+1) / mask_scale(dim) ) THEN
656	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),A,I1,A,F9.3)' ) &
657	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
658	' and/or mask_loop(',mid,',',dim,',2)=', &
659	mask_loop(mid,dim,2),'&exceed zu(nz+1)/mask_scale(',dim, &
660	')=',zu(nz+1)/mask_scale(dim)
661	CALL message( 'init_masks', 'PA0333', 1, 2, 0, 6, 0 )
662	ENDIF
663	ind_array = &
664	MINLOC( ABS( mask_loop(mid,dim,1) * mask_scale(dim) - zu ) )
665	loop_begin = &
666	ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
667	ind_array = &
668	MINLOC( ABS( mask_loop(mid,dim,2) * mask_scale(dim) - zu ) )
669	loop_end = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
670	!
671	!-- The following line assumes a constant vertical grid spacing within
672	!-- the vertical mask range; it fails for vertical grid stretching.
673	!-- Maybe revise later. Issue warning but continue execution.
674	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) * ddxyz )
675
676	IF ( mask_loop(mid,dim,2) * mask_scale(dim) > dz_stretch_level ) &
677	THEN
678	WRITE ( message_string, '(A,I3,A,I1,A,F9.3,A,F8.2,3A)' ) &
679	'mask_loop(',mid,',',dim,',2)=', mask_loop(mid,dim,2),&
680	' exceeds dz_stretch_level=',dz_stretch_level, &
681	'.&Vertical mask locations will not ', &
682	'match the desired heights&within the stretching ', &
683	'region. Recommendation: use mask instead of mask_loop.'
684	CALL message( 'init_masks', 'PA0334', 0, 1, 0, 6, 0 )
685	ENDIF
686
687	ENDIF
688	!
689	!-- If necessary, reset mask_loop(mid,dim,1) and mask_loop(mid,dim,2).
690	IF ( tmp1 < 0.0_wp ) mask_loop(mid,dim,1) = tmp1
691	IF ( tmp2 < 0.0_wp ) mask_loop(mid,dim,2) = tmp2
692	!
693	!-- The default stride +/-1 (every grid point) applies if
694	!-- mask_loop(mid,dim,3) is not specified (its default is zero).
695	IF ( loop_stride == 0 ) THEN
696	IF ( loop_end >= loop_begin ) THEN
697	loop_stride = 1
698	ELSE
699	loop_stride = -1
700	ENDIF
701	ENDIF
702	DO m = loop_begin, loop_end, loop_stride
703	count = count + 1
704	IF ( ( m >= lb .AND. m <= ub ) .OR. &
705	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
706	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
707	count_l = count_l + 1
708	IF ( dim == 1 ) THEN
709	mask_i(mid,count_l) = m
710	ELSEIF ( dim == 2 ) THEN
711	mask_j(mid,count_l) = m
712	ELSEIF ( dim == 3 ) THEN
713	mask_k(mid,count_l) = m
714	ENDIF
715	ENDIF
716	ENDDO
717	mask_size(mid,dim) = count
718	mask_size_l(mid,dim) = count_l
719
720	ENDIF
721
722	END SUBROUTINE set_mask_locations
723
724	END SUBROUTINE init_masks

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