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source: palm/trunk/SOURCE/init_masks.f90 @ 2715

Last change on this file since 2715 was 2696, checked in by kanani, 7 years ago
Merge of branch palm4u into trunk
Property svn:keywords set to `Id`
File size: 30.4 KB

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1	!> @file init_masks.f90
2	!------------------------------------------------------------------------------!
3	! This file is part of the PALM model system.
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 2696 2017-12-14 17:12:51Z raasch $
27	! explicit setting of initial values for array domask required due to a bug
28	! in the Cray compiler (appears only if option -eD is used)
29	!
30	! 2301 2017-06-29 16:41:21Z gronemeier
31	! Bugfix: set variable name length to global value
32	!
33	!
34	! Implementation of new microphysic scheme: cloud_scheme = 'morrison'
35	! includes two more prognostic equations for cloud drop concentration (nc)
36	! and cloud water content (qc).
37	!
38	! 2271 2017-06-09 12:34:55Z sward
39	! Changed error message
40	!
41	! 2101 2017-01-05 16:42:31Z suehring
42	!
43	! 2031 2016-10-21 15:11:58Z knoop
44	! renamed variable rho to rho_ocean
45	!
46	! 2000 2016-08-20 18:09:15Z knoop
47	! Forced header and separation lines into 80 columns
48	!
49	! 1822 2016-04-07 07:49:42Z hoffmann
50	! icloud_scheme replaced by microphysics_*
51	!
52	! 1804 2016-04-05 16:30:18Z maronga
53	! Removed code for parameter file check (__check)
54	!
55	! 1783 2016-03-06 18:36:17Z raasch
56	! netcdf module name changed + related changes
57	!
58	! 1682 2015-10-07 23:56:08Z knoop
59	! Code annotations made doxygen readable
60	!
61	! 1438 2014-07-22 14:14:06Z heinze
62	! +nr, qc, qr
63	!
64	! 1414 2014-05-31 11:19:48Z gronemeier
65	! Bugfix: first and last grid points as they appear in 3D volume data can now
66	! be included to masked data output
67	!
68	! 1353 2014-04-08 15:21:23Z heinze
69	! REAL constants provided with KIND-attribute
70	!
71	! 1324 2014-03-21 09:13:16Z suehring
72	! Bugfix: ONLY statement for module netcdf_control removed
73	!
74	! 1320 2014-03-20 08:40:49Z raasch
75	! ONLY-attribute added to USE-statements,
76	! kind-parameters added to all INTEGER and REAL declaration statements,
77	! kinds are defined in new module kinds,
78	! revision history before 2012 removed,
79	! comment fields (!:) to be used for variable explanations added to
80	! all variable declaration statements
81	!
82	! 1186 2013-06-18 06:22:52Z raasch
83	! bugfix: 0.0 replaced by zu(nzb) as the lowest default height level for masks,
84	! because a zero value does not work in case of ocean runs
85	!
86	! 1036 2012-10-22 13:43:42Z raasch
87	! code put under GPL (PALM 3.9)
88	!
89	! 1032 2012-10-21 13:03:21Z letzel
90	! mask locations determined based on scalar positions
91	!
92	! 1031 2012-10-19 14:35:30Z raasch
93	! netCDF4 without parallel file support implemented
94	!
95	! 996 2012-09-07 10:41:47Z raasch
96	! little reformatting
97	!
98	! 978 2012-08-09 08:28:32Z fricke
99	! +z0h*
100	!
101	! 809 2012-01-30 13:32:58Z maronga
102	! Bugfix: replaced .AND. and .NOT. with && and ! in the preprocessor directives
103	!
104	! 807 2012-01-25 11:53:51Z maronga
105	! New cpp directive "__check" implemented which is used by check_namelist_files
106	!
107	! 410 2009-12-04 17:05:40Z letzel
108	! Initial revision
109	!
110	!
111	! Description:
112	! ------------
113	!> Initialize masked data output
114	!------------------------------------------------------------------------------!
115	SUBROUTINE init_masks
116
117	USE arrays_3d, &
118	ONLY: zu, zw
119
120	USE control_parameters, &
121	ONLY: constant_diffusion, cloud_droplets, cloud_physics, &
122	data_output_masks, data_output_masks_user, &
123	doav, doav_n, domask, domask_no, dz, dz_stretch_level, humidity,&
124	mask, masks, mask_scale, mask_i, &
125	mask_i_global, mask_j, mask_j_global, mask_k, mask_k_global, &
126	mask_loop, mask_size, mask_size_l, mask_start_l, mask_x, &
127	mask_x_loop, mask_xyz_dimension, mask_y, mask_y_loop, mask_z, &
128	mask_z_loop, max_masks, message_string, mid, &
129	microphysics_morrison, microphysics_seifert, passive_scalar, &
130	ocean, varnamelength
131
132	USE grid_variables, &
133	ONLY: dx, dy
134
135	USE indices, &
136	ONLY: nx, nxl, nxr, ny, nyn, nys, nz, nzb, nzt
137
138	USE kinds
139
140	USE netcdf_interface, &
141	ONLY: domask_unit, netcdf_data_format
142
143	USE particle_attributes, &
144	ONLY: particle_advection
145
146	USE pegrid
147
148	IMPLICIT NONE
149
150	CHARACTER (LEN=varnamelength) :: var !<
151	CHARACTER (LEN=7) :: unit !<
152
153	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask !<
154	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask_user !<
155
156	INTEGER(iwp) :: i !<
157	INTEGER(iwp) :: ilen !<
158	INTEGER(iwp) :: ind(6) !<
159	INTEGER(iwp) :: ind_array(1) !<
160	INTEGER(iwp) :: j !<
161	INTEGER(iwp) :: k !<
162	INTEGER(iwp) :: n !<
163	INTEGER(iwp) :: sender !<
164
165	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: tmp_array !<
166
167	LOGICAL :: found !<
168
169	!
170	!-- Initial values are explicitly set here due to a bug in the Cray compiler
171	!-- in case of assignments of initial values in declaration statements for
172	!-- arrays with more than 9999 elements (appears with -eD only)
173	domask = ' '
174
175	!
176	!-- Allocation and initialization
177	ALLOCATE( tmp_array( MAX(nx,ny,nz)+2 ) )
178
179	ALLOCATE( mask_i(max_masks,nxr-nxl+2), &
180	mask_j(max_masks,nyn-nys+2), &
181	mask_k(max_masks,nzt-nzb+2) )
182	!
183	!-- internal mask arrays ("mask,dimension,selection")
184	ALLOCATE( mask(max_masks,3,mask_xyz_dimension), &
185	mask_loop(max_masks,3,3) )
186
187	!
188	!-- Parallel mask output not yet tested
189	IF ( netcdf_data_format > 4 ) THEN
190	message_string = 'netCDF file formats '// &
191	'3 (netCDF 4) and 4 (netCDF 4 Classic model)'// &
192	'&are currently not supported (not yet tested).'
193	CALL message( 'init_masks', 'PA0328', 1, 2, 0, 6, 0 )
194	ENDIF
195
196	!
197	!-- Store data output parameters for masked data output in few shared arrays
198	DO mid = 1, masks
199
200	do_mask (mid,:) = data_output_masks(mid,:)
201	do_mask_user(mid,:) = data_output_masks_user(mid,:)
202	mask (mid,1,:) = mask_x(mid,:)
203	mask (mid,2,:) = mask_y(mid,:)
204	mask (mid,3,:) = mask_z(mid,:)
205
206	IF ( mask_x_loop(mid,1) == -1.0_wp .AND. mask_x_loop(mid,2) == -1.0_wp&
207	.AND. mask_x_loop(mid,3) == -1.0_wp ) THEN
208	mask_loop(mid,1,1:2) = -1.0_wp
209	mask_loop(mid,1,3) = 0.0_wp
210	ELSE
211	mask_loop(mid,1,:) = mask_x_loop(mid,:)
212	ENDIF
213	IF ( mask_y_loop(mid,1) == -1.0_wp .AND. mask_y_loop(mid,2) == -1.0_wp&
214	.AND. mask_y_loop(mid,3) == -1.0_wp ) THEN
215	mask_loop(mid,2,1:2) = -1.0_wp
216	mask_loop(mid,2,3) = 0.0_wp
217	ELSE
218	mask_loop(mid,2,:) = mask_y_loop(mid,:)
219	ENDIF
220	IF ( mask_z_loop(mid,1) == -1.0_wp .AND. mask_z_loop(mid,2) == -1.0_wp&
221	.AND. mask_z_loop(mid,3) == -1.0_wp ) THEN
222	mask_loop(mid,3,1:2) = -1.0_wp
223	mask_loop(mid,3,3) = 0.0_wp
224	ELSE
225	mask_loop(mid,3,:) = mask_z_loop(mid,:)
226	ENDIF
227
228	ENDDO
229
230	mask_i = -1; mask_j = -1; mask_k = -1
231
232	!
233	!-- Global arrays are required by define_netcdf_header.
234	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
235	ALLOCATE( mask_i_global(max_masks,nx+2), &
236	mask_j_global(max_masks,ny+2), &
237	mask_k_global(max_masks,nz+2) )
238	mask_i_global = -1; mask_j_global = -1; mask_k_global = -1
239	ENDIF
240
241	!
242	!-- Determine variable names for each mask
243	DO mid = 1, masks
244	!
245	!-- Append user-defined data output variables to the standard data output
246	IF ( do_mask_user(mid,1) /= ' ' ) THEN
247	i = 1
248	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
249	i = i + 1
250	ENDDO
251	j = 1
252	DO WHILE ( do_mask_user(mid,j) /= ' ' .AND. j <= 100 )
253	IF ( i > 100 ) THEN
254	WRITE ( message_string, * ) 'number of output quantitities ', &
255	'given by data_output_mask and data_output_mask_user ', &
256	'exceeds the limit of 100'
257	CALL message( 'init_masks', 'PA0329', 1, 2, 0, 6, 0 )
258	ENDIF
259	do_mask(mid,i) = do_mask_user(mid,j)
260	i = i + 1
261	j = j + 1
262	ENDDO
263	ENDIF
264
265	!
266	!-- Check and set steering parameters for mask data output and averaging
267	i = 1
268	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
269	!
270	!-- Check for data averaging
271	ilen = LEN_TRIM( do_mask(mid,i) )
272	j = 0 ! no data averaging
273	IF ( ilen > 3 ) THEN
274	IF ( do_mask(mid,i)(ilen-2:ilen) == '_av' ) THEN
275	j = 1 ! data averaging
276	do_mask(mid,i) = do_mask(mid,i)(1:ilen-3)
277	ENDIF
278	ENDIF
279	var = TRIM( do_mask(mid,i) )
280	!
281	!-- Check for allowed value and set units
282	SELECT CASE ( TRIM( var ) )
283
284	CASE ( 'e' )
285	IF ( constant_diffusion ) THEN
286	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
287	'" requires constant_diffusion = .FALSE.'
288	CALL message( 'init_masks', 'PA0103', 1, 2, 0, 6, 0 )
289	ENDIF
290	unit = 'm2/s2'
291
292	CASE ( 'lpt' )
293	IF ( .NOT. cloud_physics ) THEN
294	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
295	'" requires cloud_physics = .TRUE.'
296	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
297	ENDIF
298	unit = 'K'
299
300	CASE ( 'nc' )
301	IF ( .NOT. cloud_physics ) THEN
302	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
303	'" requires cloud_physics = .TRUE.'
304	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
305	ELSEIF ( .NOT. microphysics_morrison ) THEN
306	message_string = 'output of "' // TRIM( var ) // '" requi' // &
307	'res = morrison'
308	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
309	ENDIF
310	unit = '1/m3'
311
312	CASE ( 'nr' )
313	IF ( .NOT. cloud_physics ) THEN
314	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
315	'" requires cloud_physics = .TRUE.'
316	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
317	ELSEIF ( .NOT. microphysics_seifert ) THEN
318	message_string = 'output of "' // TRIM( var ) // '" requi' // &
319	'res cloud_scheme = seifert_beheng'
320	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
321	ENDIF
322	unit = '1/m3'
323
324	CASE ( 'pc', 'pr' )
325	IF ( .NOT. particle_advection ) THEN
326	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
327	'" requires a "particles_par"-NAMELIST in the ', &
328	'parameter file (PARIN)'
329	CALL message( 'init_masks', 'PA0104', 1, 2, 0, 6, 0 )
330	ENDIF
331	IF ( TRIM( var ) == 'pc' ) unit = 'number'
332	IF ( TRIM( var ) == 'pr' ) unit = 'm'
333
334	CASE ( 'q', 'vpt' )
335	IF ( .NOT. humidity ) THEN
336	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
337	'" requires humidity = .TRUE.'
338	CALL message( 'init_masks', 'PA0105', 1, 2, 0, 6, 0 )
339	ENDIF
340	IF ( TRIM( var ) == 'q' ) unit = 'kg/kg'
341	IF ( TRIM( var ) == 'vpt' ) unit = 'K'
342
343	CASE ( 'qc' )
344	IF ( .NOT. cloud_physics ) THEN
345	message_string = 'output of "' // TRIM( var ) // '" requi' // &
346	'res cloud_physics = .TRUE.'
347	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
348	ENDIF
349	unit = 'kg/kg'
350
351	CASE ( 'ql' )
352	IF ( .NOT. ( cloud_physics .OR. cloud_droplets ) ) THEN
353	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
354	'" requires cloud_physics = .TRUE. or cloud_droplets', &
355	' = .TRUE.'
356	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
357	ENDIF
358	unit = 'kg/kg'
359
360	CASE ( 'ql_c', 'ql_v', 'ql_vp' )
361	IF ( .NOT. cloud_droplets ) THEN
362	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
363	'" requires cloud_droplets = .TRUE.'
364	CALL message( 'init_masks', 'PA0107', 1, 2, 0, 6, 0 )
365	ENDIF
366	IF ( TRIM( var ) == 'ql_c' ) unit = 'kg/kg'
367	IF ( TRIM( var ) == 'ql_v' ) unit = 'm3'
368	IF ( TRIM( var ) == 'ql_vp' ) unit = 'none'
369
370	CASE ( 'qv' )
371	IF ( .NOT. cloud_physics ) THEN
372	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
373	'" requires cloud_physics = .TRUE.'
374	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
375	ENDIF
376	unit = 'kg/kg'
377
378	CASE ( 'qr' )
379	IF ( .NOT. cloud_physics ) THEN
380	message_string = 'output of "' // TRIM( var ) // '" requi' // &
381	'res cloud_physics = .TRUE.'
382	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
383	ELSEIF ( .NOT. microphysics_seifert ) THEN
384	message_string = 'output of "' // TRIM( var ) // '" requi' // &
385	'res cloud_scheme = seifert_beheng'
386	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
387	ENDIF
388	unit = 'kg/kg'
389
390	CASE ( 'rho_ocean' )
391	IF ( .NOT. ocean ) THEN
392	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
393	'" requires ocean = .TRUE.'
394	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
395	ENDIF
396	unit = 'kg/m3'
397
398	CASE ( 's' )
399	IF ( .NOT. passive_scalar ) THEN
400	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
401	'" requires passive_scalar = .TRUE.'
402	CALL message( 'init_masks', 'PA0110', 1, 2, 0, 6, 0 )
403	ENDIF
404	unit = 'conc'
405
406	CASE ( 'sa' )
407	IF ( .NOT. ocean ) THEN
408	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
409	'" requires ocean = .TRUE.'
410	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
411	ENDIF
412	unit = 'psu'
413
414	CASE ( 'u', 't', 'lwp', 'pra', 'prr', 'z0', 'z0h*' )
415	WRITE ( message_string, * ) 'illegal value for data_',&
416	'output: "', TRIM( var ), '" is only allowed', &
417	'for horizontal cross section'
418	CALL message( 'init_masks', 'PA0111', 1, 2, 0, 6, 0 )
419
420	CASE ( 'p', 'pt', 'u', 'v', 'w' )
421	IF ( TRIM( var ) == 'p' ) unit = 'Pa'
422	IF ( TRIM( var ) == 'pt' ) unit = 'K'
423	IF ( TRIM( var ) == 'u' ) unit = 'm/s'
424	IF ( TRIM( var ) == 'v' ) unit = 'm/s'
425	IF ( TRIM( var ) == 'w' ) unit = 'm/s'
426	CONTINUE
427
428	CASE DEFAULT
429	CALL user_check_data_output( var, unit )
430
431	IF ( unit == 'illegal' ) THEN
432	IF ( do_mask_user(mid,1) /= ' ' ) THEN
433	WRITE ( message_string, * ) 'illegal value for data_',&
434	'output or data_output_user: "', &
435	TRIM( do_mask(mid,i) ), '"'
436	CALL message( 'init_masks', 'PA0114', 1, 2, 0, 6, 0 )
437	ELSE
438	WRITE ( message_string, * ) 'illegal value for data_',&
439	'output: "', TRIM( do_mask(mid,i) ), '"'
440	CALL message( 'init_masks', 'PA0330', 1, 2, 0, 6, 0 )
441	ENDIF
442	ENDIF
443
444	END SELECT
445	!
446	!-- Set the internal steering parameters appropriately
447	domask_no(mid,j) = domask_no(mid,j) + 1
448	domask(mid,j,domask_no(mid,j)) = do_mask(mid,i)
449	domask_unit(mid,j,domask_no(mid,j)) = unit
450
451	IF ( j == 1 ) THEN
452	!
453	!-- Check, if variable is already subject to averaging
454	found = .FALSE.
455	DO k = 1, doav_n
456	IF ( TRIM( doav(k) ) == TRIM( var ) ) found = .TRUE.
457	ENDDO
458
459	IF ( .NOT. found ) THEN
460	doav_n = doav_n + 1
461	doav(doav_n) = var
462	ENDIF
463	ENDIF
464
465	i = i + 1
466
467	ENDDO ! do_mask(mid,i)
468	ENDDO ! mid
469
470
471	!
472	!-- Determine mask locations for each mask
473	DO mid = 1, masks
474	!
475	!-- Set local masks for each subdomain along all three dimensions
476	CALL set_mask_locations( 1, dx, 'dx', nx, 'nx', nxl, nxr )
477	CALL set_mask_locations( 2, dy, 'dy', ny, 'ny', nys, nyn )
478	CALL set_mask_locations( 3, dz, 'dz', nz, 'nz', nzb, nzt )
479	!
480	!-- Set global masks along all three dimensions (required by
481	!-- define_netcdf_header).
482	#if defined( __parallel )
483	!
484	!-- PE0 receives partial arrays from all processors of the respective mask
485	!-- and outputs them. Here a barrier has to be set, because otherwise
486	!-- "-MPI- FATAL: Remote protocol queue full" may occur.
487
488	CALL MPI_BARRIER( comm2d, ierr )
489
490	IF ( myid == 0 ) THEN
491	!
492	!-- Local arrays can be relocated directly.
493	mask_i_global(mid,mask_start_l(mid,1): &
494	mask_start_l(mid,1)+mask_size_l(mid,1)-1) = &
495	mask_i(mid,:mask_size_l(mid,1))
496	mask_j_global(mid,mask_start_l(mid,2): &
497	mask_start_l(mid,2)+mask_size_l(mid,2)-1) = &
498	mask_j(mid,:mask_size_l(mid,2))
499	mask_k_global(mid,mask_start_l(mid,3): &
500	mask_start_l(mid,3)+mask_size_l(mid,3)-1) = &
501	mask_k(mid,:mask_size_l(mid,3))
502	!
503	!-- Receive data from all other PEs.
504	DO n = 1, numprocs-1
505	!
506	!-- Receive index limits first, then arrays.
507	!-- Index limits are received in arbitrary order from the PEs.
508	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, &
509	comm2d, status, ierr )
510	!
511	!-- Not all PEs have data for the mask.
512	IF ( ind(1) /= -9999 ) THEN
513	sender = status(MPI_SOURCE)
514	CALL MPI_RECV( tmp_array(ind(1)), ind(2)-ind(1)+1, &
515	MPI_INTEGER, sender, 1, comm2d, status, ierr )
516	mask_i_global(mid,ind(1):ind(2)) = tmp_array(ind(1):ind(2))
517	CALL MPI_RECV( tmp_array(ind(3)), ind(4)-ind(3)+1, &
518	MPI_INTEGER, sender, 2, comm2d, status, ierr )
519	mask_j_global(mid,ind(3):ind(4)) = tmp_array(ind(3):ind(4))
520	CALL MPI_RECV( tmp_array(ind(5)), ind(6)-ind(5)+1, &
521	MPI_INTEGER, sender, 3, comm2d, status, ierr )
522	mask_k_global(mid,ind(5):ind(6)) = tmp_array(ind(5):ind(6))
523	ENDIF
524	ENDDO
525
526	ELSE
527	!
528	!-- If at least part of the mask resides on the PE, send the index limits
529	!-- for the target array, otherwise send -9999 to PE0.
530	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
531	mask_size_l(mid,3) > 0 ) THEN
532	ind(1) = mask_start_l(mid,1)
533	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
534	ind(3) = mask_start_l(mid,2)
535	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
536	ind(5) = mask_start_l(mid,3)
537	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
538	ELSE
539	ind(1) = -9999; ind(2) = -9999
540	ind(3) = -9999; ind(4) = -9999
541	ind(5) = -9999; ind(6) = -9999
542	ENDIF
543	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
544	!
545	!-- If applicable, send data to PE0.
546	IF ( ind(1) /= -9999 ) THEN
547	tmp_array(:mask_size_l(mid,1)) = mask_i(mid,:mask_size_l(mid,1))
548	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,1), &
549	MPI_INTEGER, 0, 1, comm2d, ierr )
550	tmp_array(:mask_size_l(mid,2)) = mask_j(mid,:mask_size_l(mid,2))
551	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,2), &
552	MPI_INTEGER, 0, 2, comm2d, ierr )
553	tmp_array(:mask_size_l(mid,3)) = mask_k(mid,:mask_size_l(mid,3))
554	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,3), &
555	MPI_INTEGER, 0, 3, comm2d, ierr )
556	ENDIF
557	ENDIF
558	!
559	!-- A barrier has to be set, because otherwise some PEs may proceed too fast
560	!-- so that PE0 may receive wrong data on tag 0.
561	CALL MPI_BARRIER( comm2d, ierr )
562
563	IF ( netcdf_data_format > 4 ) THEN
564
565	CALL MPI_BCAST( mask_i_global(mid,:), nx+2, MPI_INTEGER, 0, comm2d, &
566	ierr )
567	CALL MPI_BCAST( mask_j_global(mid,:), ny+2, MPI_INTEGER, 0, comm2d, &
568	ierr )
569	CALL MPI_BCAST( mask_k_global(mid,:), nz+2, MPI_INTEGER, 0, comm2d, &
570	ierr )
571
572	ENDIF
573
574	#else
575	!
576	!-- Local arrays can be relocated directly.
577	mask_i_global(mid,:) = mask_i(mid,:)
578	mask_j_global(mid,:) = mask_j(mid,:)
579	mask_k_global(mid,:) = mask_k(mid,:)
580	#endif
581	ENDDO ! mid
582
583	DEALLOCATE( tmp_array )
584	!
585	!-- Internal mask arrays cannot be deallocated on PE 0 because they are
586	!-- required for header output on PE 0.
587	IF ( myid /= 0 ) DEALLOCATE( mask, mask_loop )
588
589	CONTAINS
590
591	!------------------------------------------------------------------------------!
592	! Description:
593	! ------------
594	!> Set local mask for each subdomain along 'dim' direction.
595	!------------------------------------------------------------------------------!
596	SUBROUTINE set_mask_locations( dim, dxyz, dxyz_string, nxyz, nxyz_string, &
597	lb, ub )
598
599	IMPLICIT NONE
600
601	CHARACTER (LEN=2) :: dxyz_string !<
602	CHARACTER (LEN=2) :: nxyz_string !<
603
604	INTEGER(iwp) :: count !<
605	INTEGER(iwp) :: count_l !<
606	INTEGER(iwp) :: dim !<
607	INTEGER(iwp) :: m !<
608	INTEGER(iwp) :: loop_begin !<
609	INTEGER(iwp) :: loop_end !<
610	INTEGER(iwp) :: loop_stride !<
611	INTEGER(iwp) :: lb !<
612	INTEGER(iwp) :: nxyz !<
613	INTEGER(iwp) :: ub !<
614
615	REAL(wp) :: dxyz !<
616	REAL(wp) :: ddxyz !<
617	REAL(wp) :: tmp1 !<
618	REAL(wp) :: tmp2 !<
619
620	count = 0; count_l = 0
621	ddxyz = 1.0_wp / dxyz
622	tmp1 = 0.0_wp
623	tmp2 = 0.0_wp
624
625	IF ( mask(mid,dim,1) >= 0.0_wp ) THEN
626	!
627	!-- use predefined mask_* array
628	DO WHILE ( mask(mid,dim,count+1) >= 0.0_wp )
629	count = count + 1
630	IF ( dim == 1 .OR. dim == 2 ) THEN
631	m = NINT( mask(mid,dim,count) * mask_scale(dim) * ddxyz - 0.5_wp )
632	IF ( m < 0 ) m = 0 ! avoid negative values
633	ELSEIF ( dim == 3 ) THEN
634	ind_array = &
635	MINLOC( ABS( mask(mid,dim,count) * mask_scale(dim) - zu ) )
636	m = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
637	ENDIF
638	IF ( m > (nxyz+1) ) THEN
639	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
640	m,' in mask ',mid,' along dimension ',dim, &
641	' exceeds (',nxyz_string,'+1) = ',nxyz+1
642	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
643	ENDIF
644	IF ( ( m >= lb .AND. m <= ub ) .OR. &
645	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
646	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
647	count_l = count_l + 1
648	IF ( dim == 1 ) THEN
649	mask_i(mid,count_l) = m
650	ELSEIF ( dim == 2 ) THEN
651	mask_j(mid,count_l) = m
652	ELSEIF ( dim == 3 ) THEN
653	mask_k(mid,count_l) = m
654	ENDIF
655	ENDIF
656	IF ( count == mask_xyz_dimension ) EXIT
657	ENDDO
658	mask_size(mid,dim) = count
659	mask_size_l(mid,dim) = count_l
660
661	ELSE
662	!
663	!-- use predefined mask_loop_* array, or use the default (all grid points
664	!-- along this direction)
665	IF ( mask_loop(mid,dim,1) < 0.0_wp ) THEN
666	tmp1 = mask_loop(mid,dim,1)
667	mask_loop(mid,dim,1) = zw(nzb) ! lowest level (default)
668	ENDIF
669	IF ( dim == 1 .OR. dim == 2 ) THEN
670	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
671	tmp2 = mask_loop(mid,dim,2)
672	mask_loop(mid,dim,2) = (nxyz+1)*dxyz / mask_scale(dim) ! (default)
673	ENDIF
674	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
675	> (nxyz+1) * dxyz / mask_scale(dim) ) THEN
676	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),5A,I1,A,F9.3)' ) &
677	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
678	' and/or mask_loop(',mid,',',dim,',2)=', &
679	mask_loop(mid,dim,2),'&exceed (', &
680	nxyz_string,'+1)*',dxyz_string,'/mask_scale(',dim,')=', &
681	(nxyz+1)*dxyz/mask_scale(dim)
682	CALL message( 'init_masks', 'PA0332', 1, 2, 0, 6, 0 )
683	ENDIF
684	loop_begin = NINT( mask_loop(mid,dim,1) * mask_scale(dim) &
685	* ddxyz - 0.5_wp )
686	loop_end = NINT( mask_loop(mid,dim,2) * mask_scale(dim) &
687	* ddxyz - 0.5_wp )
688	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) &
689	* ddxyz )
690	IF ( loop_begin == -1 ) loop_begin = 0 ! avoid negative values
691	ELSEIF ( dim == 3 ) THEN
692	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
693	tmp2 = mask_loop(mid,dim,2)
694	mask_loop(mid,dim,2) = zu(nz+1) / mask_scale(dim) ! (default)
695	ENDIF
696	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
697	> zu(nz+1) / mask_scale(dim) ) THEN
698	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),A,I1,A,F9.3)' ) &
699	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
700	' and/or mask_loop(',mid,',',dim,',2)=', &
701	mask_loop(mid,dim,2),'&exceed zu(nz+1)/mask_scale(',dim, &
702	')=',zu(nz+1)/mask_scale(dim)
703	CALL message( 'init_masks', 'PA0333', 1, 2, 0, 6, 0 )
704	ENDIF
705	ind_array = &
706	MINLOC( ABS( mask_loop(mid,dim,1) * mask_scale(dim) - zu ) )
707	loop_begin = &
708	ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
709	ind_array = &
710	MINLOC( ABS( mask_loop(mid,dim,2) * mask_scale(dim) - zu ) )
711	loop_end = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
712	!
713	!-- The following line assumes a constant vertical grid spacing within
714	!-- the vertical mask range; it fails for vertical grid stretching.
715	!-- Maybe revise later. Issue warning but continue execution.
716	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) * ddxyz )
717
718	IF ( mask_loop(mid,dim,2) * mask_scale(dim) > dz_stretch_level ) &
719	THEN
720	WRITE ( message_string, '(A,I3,A,I1,A,F9.3,A,F8.2,3A)' ) &
721	'mask_loop(',mid,',',dim,',2)=', mask_loop(mid,dim,2),&
722	' exceeds dz_stretch_level=',dz_stretch_level, &
723	'.&Vertical mask locations will not ', &
724	'match the desired heights&within the stretching ', &
725	'region.'
726	CALL message( 'init_masks', 'PA0334', 0, 1, 0, 6, 0 )
727	ENDIF
728
729	ENDIF
730	!
731	!-- If necessary, reset mask_loop(mid,dim,1) and mask_loop(mid,dim,2).
732	IF ( tmp1 < 0.0_wp ) mask_loop(mid,dim,1) = tmp1
733	IF ( tmp2 < 0.0_wp ) mask_loop(mid,dim,2) = tmp2
734	!
735	!-- The default stride +/-1 (every grid point) applies if
736	!-- mask_loop(mid,dim,3) is not specified (its default is zero).
737	IF ( loop_stride == 0 ) THEN
738	IF ( loop_end >= loop_begin ) THEN
739	loop_stride = 1
740	ELSE
741	loop_stride = -1
742	ENDIF
743	ENDIF
744	DO m = loop_begin, loop_end, loop_stride
745	count = count + 1
746	IF ( ( m >= lb .AND. m <= ub ) .OR. &
747	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
748	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
749	count_l = count_l + 1
750	IF ( dim == 1 ) THEN
751	mask_i(mid,count_l) = m
752	ELSEIF ( dim == 2 ) THEN
753	mask_j(mid,count_l) = m
754	ELSEIF ( dim == 3 ) THEN
755	mask_k(mid,count_l) = m
756	ENDIF
757	ENDIF
758	ENDDO
759	mask_size(mid,dim) = count
760	mask_size_l(mid,dim) = count_l
761
762	ENDIF
763
764	END SUBROUTINE set_mask_locations
765
766	END SUBROUTINE init_masks

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