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source: palm/trunk/SOURCE/init_masks.f90 @ 3372

Last change on this file since 3372 was 3294, checked in by raasch, 6 years ago
modularization of the ocean code
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File size: 31.6 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 1997-2018 Leibniz Universitaet Hannover
18	!------------------------------------------------------------------------------!
19	!
20	! Current revisions:
21	! -----------------
22	!
23	!
24	! Former revisions:
25	! -----------------
26	! $Id: init_masks.f90 3294 2018-10-01 02:37:10Z raasch $
27	! ocean renamed ocean_mode
28	!
29	! 3274 2018-09-24 15:42:55Z knoop
30	! Modularization of all bulk cloud physics code components
31	!
32	! 3065 2018-06-12 07:03:02Z Giersch
33	! dz_stretch_level was replaced by dz_stretch_level_start
34	!
35	! 3049 2018-05-29 13:52:36Z Giersch
36	! Error messages revised
37	!
38	! 3045 2018-05-28 07:55:41Z Giersch
39	! Error messages revised
40	!
41	! 2718 2018-01-02 08:49:38Z maronga
42	! Corrected "Former revisions" section
43	!
44	! 2696 2017-12-14 17:12:51Z kanani
45	! Change in file header (GPL part)
46	!
47	! 2344 2017-08-09 11:00:34Z raasch
48	! explicit setting of initial values for array domask required due to a bug
49	! in the Cray compiler (appears only if option -eD is used)
50	!
51	! 2301 2017-06-29 16:41:21Z gronemeier
52	! Bugfix: set variable name length to global value
53	!
54	!
55	! Implementation of new microphysic scheme: cloud_scheme = 'morrison'
56	! includes two more prognostic equations for cloud drop concentration (nc)
57	! and cloud water content (qc).
58	!
59	! 2271 2017-06-09 12:34:55Z sward
60	! Changed error message
61	!
62	! 2101 2017-01-05 16:42:31Z suehring
63	!
64	! 2031 2016-10-21 15:11:58Z knoop
65	! renamed variable rho to rho_ocean
66	!
67	! 2000 2016-08-20 18:09:15Z knoop
68	! Forced header and separation lines into 80 columns
69	!
70	! 1822 2016-04-07 07:49:42Z hoffmann
71	! icloud_scheme replaced by microphysics_*
72	!
73	! 1804 2016-04-05 16:30:18Z maronga
74	! Removed code for parameter file check (__check)
75	!
76	! 1783 2016-03-06 18:36:17Z raasch
77	! netcdf module name changed + related changes
78	!
79	! 1682 2015-10-07 23:56:08Z knoop
80	! Code annotations made doxygen readable
81	!
82	! 1438 2014-07-22 14:14:06Z heinze
83	! +nr, qc, qr
84	!
85	! 1414 2014-05-31 11:19:48Z gronemeier
86	! Bugfix: first and last grid points as they appear in 3D volume data can now
87	! be included to masked data output
88	!
89	! 1353 2014-04-08 15:21:23Z heinze
90	! REAL constants provided with KIND-attribute
91	!
92	! 1324 2014-03-21 09:13:16Z suehring
93	! Bugfix: ONLY statement for module netcdf_control removed
94	!
95	! 1320 2014-03-20 08:40:49Z raasch
96	! ONLY-attribute added to USE-statements,
97	! kind-parameters added to all INTEGER and REAL declaration statements,
98	! kinds are defined in new module kinds,
99	! revision history before 2012 removed,
100	! comment fields (!:) to be used for variable explanations added to
101	! all variable declaration statements
102	!
103	! 1186 2013-06-18 06:22:52Z raasch
104	! bugfix: 0.0 replaced by zu(nzb) as the lowest default height level for masks,
105	! because a zero value does not work in case of ocean runs
106	!
107	! 1036 2012-10-22 13:43:42Z raasch
108	! code put under GPL (PALM 3.9)
109	!
110	! 1032 2012-10-21 13:03:21Z letzel
111	! mask locations determined based on scalar positions
112	!
113	! 1031 2012-10-19 14:35:30Z raasch
114	! netCDF4 without parallel file support implemented
115	!
116	! 996 2012-09-07 10:41:47Z raasch
117	! little reformatting
118	!
119	! 978 2012-08-09 08:28:32Z fricke
120	! +z0h*
121	!
122	! 809 2012-01-30 13:32:58Z maronga
123	! Bugfix: replaced .AND. and .NOT. with && and ! in the preprocessor directives
124	!
125	! 807 2012-01-25 11:53:51Z maronga
126	! New cpp directive "__check" implemented which is used by check_namelist_files
127	!
128	! 410 2009-12-04 17:05:40Z letzel
129	! Initial revision
130	!
131	!
132	! Description:
133	! ------------
134	!> Initialize masked data output
135	!------------------------------------------------------------------------------!
136	SUBROUTINE init_masks
137
138	USE arrays_3d, &
139	ONLY: zu, zw
140
141	USE control_parameters, &
142	ONLY: constant_diffusion, cloud_droplets, &
143	data_output_masks, data_output_masks_user, &
144	doav, doav_n, domask, domask_no, dz, dz_stretch_level_start, &
145	humidity, mask, masks, mask_scale, mask_i, &
146	mask_i_global, mask_j, mask_j_global, mask_k, mask_k_global, &
147	mask_loop, mask_size, mask_size_l, mask_start_l, mask_x, &
148	mask_x_loop, mask_xyz_dimension, mask_y, mask_y_loop, mask_z, &
149	mask_z_loop, max_masks, message_string, mid, &
150	passive_scalar, ocean_mode, varnamelength
151
152
153	USE grid_variables, &
154	ONLY: dx, dy
155
156	USE indices, &
157	ONLY: nx, nxl, nxr, ny, nyn, nys, nz, nzb, nzt
158
159	USE kinds
160
161	USE bulk_cloud_model_mod, &
162	ONLY: bulk_cloud_model, microphysics_morrison, microphysics_seifert
163
164	USE netcdf_interface, &
165	ONLY: domask_unit, netcdf_data_format
166
167	USE particle_attributes, &
168	ONLY: particle_advection
169
170	USE pegrid
171
172	IMPLICIT NONE
173
174	CHARACTER (LEN=varnamelength) :: var !<
175	CHARACTER (LEN=7) :: unit !<
176
177	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask !<
178	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask_user !<
179
180	INTEGER(iwp) :: i !<
181	INTEGER(iwp) :: ilen !<
182	INTEGER(iwp) :: ind(6) !<
183	INTEGER(iwp) :: ind_array(1) !<
184	INTEGER(iwp) :: j !<
185	INTEGER(iwp) :: k !<
186	INTEGER(iwp) :: n !<
187	INTEGER(iwp) :: sender !<
188
189	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: tmp_array !<
190
191	LOGICAL :: found !<
192
193	!
194	!-- Initial values are explicitly set here due to a bug in the Cray compiler
195	!-- in case of assignments of initial values in declaration statements for
196	!-- arrays with more than 9999 elements (appears with -eD only)
197	domask = ' '
198
199	!
200	!-- Allocation and initialization
201	ALLOCATE( tmp_array( MAX(nx,ny,nz)+2 ) )
202
203	ALLOCATE( mask_i(max_masks,nxr-nxl+2), &
204	mask_j(max_masks,nyn-nys+2), &
205	mask_k(max_masks,nzt-nzb+2) )
206	!
207	!-- internal mask arrays ("mask,dimension,selection")
208	ALLOCATE( mask(max_masks,3,mask_xyz_dimension), &
209	mask_loop(max_masks,3,3) )
210
211	!
212	!-- Parallel mask output not yet supported. In check_parameters data format
213	!-- is restricted and is switched back to non-parallel output. Therefore the
214	!-- following error can not occur at the moment.
215	IF ( netcdf_data_format > 4 ) THEN
216	message_string = 'netCDF file formats '// &
217	'5 and 6 (with parallel I/O support)'// &
218	' are currently not supported.'
219	CALL message( 'init_masks', 'PA0328', 1, 2, 0, 6, 0 )
220	ENDIF
221
222	!
223	!-- Store data output parameters for masked data output in few shared arrays
224	DO mid = 1, masks
225
226	do_mask (mid,:) = data_output_masks(mid,:)
227	do_mask_user(mid,:) = data_output_masks_user(mid,:)
228	mask (mid,1,:) = mask_x(mid,:)
229	mask (mid,2,:) = mask_y(mid,:)
230	mask (mid,3,:) = mask_z(mid,:)
231
232	IF ( mask_x_loop(mid,1) == -1.0_wp .AND. mask_x_loop(mid,2) == -1.0_wp&
233	.AND. mask_x_loop(mid,3) == -1.0_wp ) THEN
234	mask_loop(mid,1,1:2) = -1.0_wp
235	mask_loop(mid,1,3) = 0.0_wp
236	ELSE
237	mask_loop(mid,1,:) = mask_x_loop(mid,:)
238	ENDIF
239	IF ( mask_y_loop(mid,1) == -1.0_wp .AND. mask_y_loop(mid,2) == -1.0_wp&
240	.AND. mask_y_loop(mid,3) == -1.0_wp ) THEN
241	mask_loop(mid,2,1:2) = -1.0_wp
242	mask_loop(mid,2,3) = 0.0_wp
243	ELSE
244	mask_loop(mid,2,:) = mask_y_loop(mid,:)
245	ENDIF
246	IF ( mask_z_loop(mid,1) == -1.0_wp .AND. mask_z_loop(mid,2) == -1.0_wp&
247	.AND. mask_z_loop(mid,3) == -1.0_wp ) THEN
248	mask_loop(mid,3,1:2) = -1.0_wp
249	mask_loop(mid,3,3) = 0.0_wp
250	ELSE
251	mask_loop(mid,3,:) = mask_z_loop(mid,:)
252	ENDIF
253
254	ENDDO
255
256	mask_i = -1; mask_j = -1; mask_k = -1
257
258	!
259	!-- Global arrays are required by define_netcdf_header.
260	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
261	ALLOCATE( mask_i_global(max_masks,nx+2), &
262	mask_j_global(max_masks,ny+2), &
263	mask_k_global(max_masks,nz+2) )
264	mask_i_global = -1; mask_j_global = -1; mask_k_global = -1
265	ENDIF
266
267	!
268	!-- Determine variable names for each mask
269	DO mid = 1, masks
270	!
271	!-- Append user-defined data output variables to the standard data output
272	IF ( do_mask_user(mid,1) /= ' ' ) THEN
273	i = 1
274	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
275	i = i + 1
276	ENDDO
277	j = 1
278	DO WHILE ( do_mask_user(mid,j) /= ' ' .AND. j <= 100 )
279	IF ( i > 100 ) THEN
280	WRITE ( message_string, * ) 'number of output quantitities ', &
281	'given by data_output_mask and data_output_mask_user ', &
282	'exceeds the limit of 100'
283	CALL message( 'init_masks', 'PA0329', 1, 2, 0, 6, 0 )
284	ENDIF
285	do_mask(mid,i) = do_mask_user(mid,j)
286	i = i + 1
287	j = j + 1
288	ENDDO
289	ENDIF
290
291	!
292	!-- Check and set steering parameters for mask data output and averaging
293	i = 1
294	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
295	!
296	!-- Check for data averaging
297	ilen = LEN_TRIM( do_mask(mid,i) )
298	j = 0 ! no data averaging
299	IF ( ilen > 3 ) THEN
300	IF ( do_mask(mid,i)(ilen-2:ilen) == '_av' ) THEN
301	j = 1 ! data averaging
302	do_mask(mid,i) = do_mask(mid,i)(1:ilen-3)
303	ENDIF
304	ENDIF
305	var = TRIM( do_mask(mid,i) )
306	!
307	!-- Check for allowed value and set units
308	SELECT CASE ( TRIM( var ) )
309
310	CASE ( 'e' )
311	IF ( constant_diffusion ) THEN
312	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
313	'" requires constant_diffusion = .FALSE.'
314	CALL message( 'init_masks', 'PA0103', 1, 2, 0, 6, 0 )
315	ENDIF
316	unit = 'm2/s2'
317
318	CASE ( 'lpt' )
319	IF ( .NOT. bulk_cloud_model ) THEN
320	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
321	'" requires bulk_cloud_model = .TRUE.'
322	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
323	ENDIF
324	unit = 'K'
325
326	CASE ( 'nc' )
327	IF ( .NOT. bulk_cloud_model ) THEN
328	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
329	'" requires bulk_cloud_model = .TRUE.'
330	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
331	ELSEIF ( .NOT. microphysics_morrison ) THEN
332	message_string = 'output of "' // TRIM( var ) // '" ' // &
333	'requires = morrison'
334	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
335	ENDIF
336	unit = '1/m3'
337
338	CASE ( 'nr' )
339	IF ( .NOT. bulk_cloud_model ) THEN
340	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
341	'" requires bulk_cloud_model = .TRUE.'
342	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
343	ELSEIF ( .NOT. microphysics_seifert ) THEN
344	message_string = 'output of "' // TRIM( var ) // '"' // &
345	'requires cloud_scheme = seifert_beheng'
346	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
347	ENDIF
348	unit = '1/m3'
349
350	CASE ( 'pc', 'pr' )
351	IF ( .NOT. particle_advection ) THEN
352	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
353	'" requires a "particles_par"-NAMELIST in the ', &
354	'parameter file (PARIN)'
355	CALL message( 'init_masks', 'PA0104', 1, 2, 0, 6, 0 )
356	ENDIF
357	IF ( TRIM( var ) == 'pc' ) unit = 'number'
358	IF ( TRIM( var ) == 'pr' ) unit = 'm'
359
360	CASE ( 'q', 'vpt' )
361	IF ( .NOT. humidity ) THEN
362	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
363	'" requires humidity = .TRUE.'
364	CALL message( 'init_masks', 'PA0105', 1, 2, 0, 6, 0 )
365	ENDIF
366	IF ( TRIM( var ) == 'q' ) unit = 'kg/kg'
367	IF ( TRIM( var ) == 'vpt' ) unit = 'K'
368
369	CASE ( 'qc' )
370	IF ( .NOT. bulk_cloud_model ) THEN
371	message_string = 'output of "' // TRIM( var ) // '"' // &
372	'requires bulk_cloud_model = .TRUE.'
373	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
374	ENDIF
375	unit = 'kg/kg'
376
377	CASE ( 'ql' )
378	IF ( .NOT. ( bulk_cloud_model .OR. cloud_droplets ) ) THEN
379	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
380	'" requires bulk_cloud_model = .TRUE. or ', &
381	'cloud_droplets = .TRUE.'
382	CALL message( 'init_masks', 'PA0106', 1, 2, 0, 6, 0 )
383	ENDIF
384	unit = 'kg/kg'
385
386	CASE ( 'ql_c', 'ql_v', 'ql_vp' )
387	IF ( .NOT. cloud_droplets ) THEN
388	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
389	'" requires cloud_droplets = .TRUE.'
390	CALL message( 'init_masks', 'PA0107', 1, 2, 0, 6, 0 )
391	ENDIF
392	IF ( TRIM( var ) == 'ql_c' ) unit = 'kg/kg'
393	IF ( TRIM( var ) == 'ql_v' ) unit = 'm3'
394	IF ( TRIM( var ) == 'ql_vp' ) unit = 'none'
395
396	CASE ( 'qv' )
397	IF ( .NOT. bulk_cloud_model ) THEN
398	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
399	'" requires bulk_cloud_model = .TRUE.'
400	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
401	ENDIF
402	unit = 'kg/kg'
403
404	CASE ( 'qr' )
405	IF ( .NOT. bulk_cloud_model ) THEN
406	message_string = 'output of "' // TRIM( var ) // '" ' // &
407	'requires bulk_cloud_model = .TRUE.'
408	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
409	ELSEIF ( .NOT. microphysics_seifert ) THEN
410	message_string = 'output of "' // TRIM( var ) // '" ' // &
411	'requires cloud_scheme = seifert_beheng'
412	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
413	ENDIF
414	unit = 'kg/kg'
415
416	CASE ( 'rho_ocean' )
417	IF ( .NOT. ocean_mode ) THEN
418	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
419	'" requires ocean mode'
420	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
421	ENDIF
422	unit = 'kg/m3'
423
424	CASE ( 's' )
425	IF ( .NOT. passive_scalar ) THEN
426	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
427	'" requires passive_scalar = .TRUE.'
428	CALL message( 'init_masks', 'PA0110', 1, 2, 0, 6, 0 )
429	ENDIF
430	unit = 'conc'
431
432	CASE ( 'sa' )
433	IF ( .NOT. ocean_mode ) THEN
434	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
435	'" requires ocean mode'
436	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
437	ENDIF
438	unit = 'psu'
439
440	CASE ( 'u', 't', 'lwp', 'pra', 'prr', 'z0', 'z0h*' )
441	WRITE ( message_string, * ) 'illegal value for data_', &
442	'output: "', TRIM( var ), '" is only allowed', &
443	'for horizontal cross section'
444	CALL message( 'init_masks', 'PA0111', 1, 2, 0, 6, 0 )
445
446	CASE ( 'p', 'pt', 'u', 'v', 'w' )
447	IF ( TRIM( var ) == 'p' ) unit = 'Pa'
448	IF ( TRIM( var ) == 'pt' ) unit = 'K'
449	IF ( TRIM( var ) == 'u' ) unit = 'm/s'
450	IF ( TRIM( var ) == 'v' ) unit = 'm/s'
451	IF ( TRIM( var ) == 'w' ) unit = 'm/s'
452	CONTINUE
453
454	CASE DEFAULT
455	CALL user_check_data_output( var, unit )
456
457	IF ( unit == 'illegal' ) THEN
458	IF ( do_mask_user(mid,1) /= ' ' ) THEN
459	WRITE ( message_string, * ) 'illegal value for data_', &
460	'output_masks or data_output_masks_user: "', &
461	TRIM( do_mask(mid,i) ), '"'
462	CALL message( 'init_masks', 'PA0018', 1, 2, 0, 6, 0 )
463	ELSE
464	WRITE ( message_string, * ) 'illegal value for data_', &
465	' output_masks : "', TRIM( do_mask(mid,i) ), '"'
466	CALL message( 'init_masks', 'PA0330', 1, 2, 0, 6, 0 )
467	ENDIF
468	ENDIF
469
470	END SELECT
471	!
472	!-- Set the internal steering parameters appropriately
473	domask_no(mid,j) = domask_no(mid,j) + 1
474	domask(mid,j,domask_no(mid,j)) = do_mask(mid,i)
475	domask_unit(mid,j,domask_no(mid,j)) = unit
476
477	IF ( j == 1 ) THEN
478	!
479	!-- Check, if variable is already subject to averaging
480	found = .FALSE.
481	DO k = 1, doav_n
482	IF ( TRIM( doav(k) ) == TRIM( var ) ) found = .TRUE.
483	ENDDO
484
485	IF ( .NOT. found ) THEN
486	doav_n = doav_n + 1
487	doav(doav_n) = var
488	ENDIF
489	ENDIF
490
491	i = i + 1
492
493	ENDDO ! do_mask(mid,i)
494	ENDDO ! mid
495
496
497	!
498	!-- Determine mask locations for each mask
499	DO mid = 1, masks
500	!
501	!-- Set local masks for each subdomain along all three dimensions
502	CALL set_mask_locations( 1, dx, 'dx', nx, 'nx', nxl, nxr )
503	CALL set_mask_locations( 2, dy, 'dy', ny, 'ny', nys, nyn )
504	CALL set_mask_locations( 3, dz(1), 'dz', nz, 'nz', nzb, nzt )
505	!
506	!-- Set global masks along all three dimensions (required by
507	!-- define_netcdf_header).
508	#if defined( __parallel )
509	!
510	!-- PE0 receives partial arrays from all processors of the respective mask
511	!-- and outputs them. Here a barrier has to be set, because otherwise
512	!-- "-MPI- FATAL: Remote protocol queue full" may occur.
513
514	CALL MPI_BARRIER( comm2d, ierr )
515
516	IF ( myid == 0 ) THEN
517	!
518	!-- Local arrays can be relocated directly.
519	mask_i_global(mid,mask_start_l(mid,1): &
520	mask_start_l(mid,1)+mask_size_l(mid,1)-1) = &
521	mask_i(mid,:mask_size_l(mid,1))
522	mask_j_global(mid,mask_start_l(mid,2): &
523	mask_start_l(mid,2)+mask_size_l(mid,2)-1) = &
524	mask_j(mid,:mask_size_l(mid,2))
525	mask_k_global(mid,mask_start_l(mid,3): &
526	mask_start_l(mid,3)+mask_size_l(mid,3)-1) = &
527	mask_k(mid,:mask_size_l(mid,3))
528	!
529	!-- Receive data from all other PEs.
530	DO n = 1, numprocs-1
531	!
532	!-- Receive index limits first, then arrays.
533	!-- Index limits are received in arbitrary order from the PEs.
534	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, &
535	comm2d, status, ierr )
536	!
537	!-- Not all PEs have data for the mask.
538	IF ( ind(1) /= -9999 ) THEN
539	sender = status(MPI_SOURCE)
540	CALL MPI_RECV( tmp_array(ind(1)), ind(2)-ind(1)+1, &
541	MPI_INTEGER, sender, 1, comm2d, status, ierr )
542	mask_i_global(mid,ind(1):ind(2)) = tmp_array(ind(1):ind(2))
543	CALL MPI_RECV( tmp_array(ind(3)), ind(4)-ind(3)+1, &
544	MPI_INTEGER, sender, 2, comm2d, status, ierr )
545	mask_j_global(mid,ind(3):ind(4)) = tmp_array(ind(3):ind(4))
546	CALL MPI_RECV( tmp_array(ind(5)), ind(6)-ind(5)+1, &
547	MPI_INTEGER, sender, 3, comm2d, status, ierr )
548	mask_k_global(mid,ind(5):ind(6)) = tmp_array(ind(5):ind(6))
549	ENDIF
550	ENDDO
551
552	ELSE
553	!
554	!-- If at least part of the mask resides on the PE, send the index limits
555	!-- for the target array, otherwise send -9999 to PE0.
556	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
557	mask_size_l(mid,3) > 0 ) THEN
558	ind(1) = mask_start_l(mid,1)
559	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
560	ind(3) = mask_start_l(mid,2)
561	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
562	ind(5) = mask_start_l(mid,3)
563	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
564	ELSE
565	ind(1) = -9999; ind(2) = -9999
566	ind(3) = -9999; ind(4) = -9999
567	ind(5) = -9999; ind(6) = -9999
568	ENDIF
569	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
570	!
571	!-- If applicable, send data to PE0.
572	IF ( ind(1) /= -9999 ) THEN
573	tmp_array(:mask_size_l(mid,1)) = mask_i(mid,:mask_size_l(mid,1))
574	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,1), &
575	MPI_INTEGER, 0, 1, comm2d, ierr )
576	tmp_array(:mask_size_l(mid,2)) = mask_j(mid,:mask_size_l(mid,2))
577	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,2), &
578	MPI_INTEGER, 0, 2, comm2d, ierr )
579	tmp_array(:mask_size_l(mid,3)) = mask_k(mid,:mask_size_l(mid,3))
580	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,3), &
581	MPI_INTEGER, 0, 3, comm2d, ierr )
582	ENDIF
583	ENDIF
584	!
585	!-- A barrier has to be set, because otherwise some PEs may proceed too fast
586	!-- so that PE0 may receive wrong data on tag 0.
587	CALL MPI_BARRIER( comm2d, ierr )
588
589	IF ( netcdf_data_format > 4 ) THEN
590
591	CALL MPI_BCAST( mask_i_global(mid,:), nx+2, MPI_INTEGER, 0, comm2d, &
592	ierr )
593	CALL MPI_BCAST( mask_j_global(mid,:), ny+2, MPI_INTEGER, 0, comm2d, &
594	ierr )
595	CALL MPI_BCAST( mask_k_global(mid,:), nz+2, MPI_INTEGER, 0, comm2d, &
596	ierr )
597
598	ENDIF
599
600	#else
601	!
602	!-- Local arrays can be relocated directly.
603	mask_i_global(mid,:) = mask_i(mid,:)
604	mask_j_global(mid,:) = mask_j(mid,:)
605	mask_k_global(mid,:) = mask_k(mid,:)
606	#endif
607	ENDDO ! mid
608
609	DEALLOCATE( tmp_array )
610	!
611	!-- Internal mask arrays cannot be deallocated on PE 0 because they are
612	!-- required for header output on PE 0.
613	IF ( myid /= 0 ) DEALLOCATE( mask, mask_loop )
614
615	CONTAINS
616
617	!------------------------------------------------------------------------------!
618	! Description:
619	! ------------
620	!> Set local mask for each subdomain along 'dim' direction.
621	!------------------------------------------------------------------------------!
622	SUBROUTINE set_mask_locations( dim, dxyz, dxyz_string, nxyz, nxyz_string, &
623	lb, ub )
624
625	IMPLICIT NONE
626
627	CHARACTER (LEN=2) :: dxyz_string !<
628	CHARACTER (LEN=2) :: nxyz_string !<
629
630	INTEGER(iwp) :: count !<
631	INTEGER(iwp) :: count_l !<
632	INTEGER(iwp) :: dim !<
633	INTEGER(iwp) :: m !<
634	INTEGER(iwp) :: loop_begin !<
635	INTEGER(iwp) :: loop_end !<
636	INTEGER(iwp) :: loop_stride !<
637	INTEGER(iwp) :: lb !<
638	INTEGER(iwp) :: nxyz !<
639	INTEGER(iwp) :: ub !<
640
641	REAL(wp) :: dxyz !<
642	REAL(wp) :: ddxyz !<
643	REAL(wp) :: tmp1 !<
644	REAL(wp) :: tmp2 !<
645
646	count = 0; count_l = 0
647	ddxyz = 1.0_wp / dxyz
648	tmp1 = 0.0_wp
649	tmp2 = 0.0_wp
650
651	IF ( mask(mid,dim,1) >= 0.0_wp ) THEN
652	!
653	!-- use predefined mask_* array
654	DO WHILE ( mask(mid,dim,count+1) >= 0.0_wp )
655	count = count + 1
656	IF ( dim == 1 .OR. dim == 2 ) THEN
657	m = NINT( mask(mid,dim,count) * mask_scale(dim) * ddxyz - 0.5_wp )
658	IF ( m < 0 ) m = 0 ! avoid negative values
659	ELSEIF ( dim == 3 ) THEN
660	ind_array = &
661	MINLOC( ABS( mask(mid,dim,count) * mask_scale(dim) - zu ) )
662	m = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
663	ENDIF
664	IF ( m > (nxyz+1) ) THEN
665	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
666	m,' in mask ',mid,' along dimension ',dim, &
667	' exceeds (',nxyz_string,'+1) = ',nxyz+1
668	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
669	ENDIF
670	IF ( ( m >= lb .AND. m <= ub ) .OR. &
671	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
672	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
673	count_l = count_l + 1
674	IF ( dim == 1 ) THEN
675	mask_i(mid,count_l) = m
676	ELSEIF ( dim == 2 ) THEN
677	mask_j(mid,count_l) = m
678	ELSEIF ( dim == 3 ) THEN
679	mask_k(mid,count_l) = m
680	ENDIF
681	ENDIF
682	IF ( count == mask_xyz_dimension ) EXIT
683	ENDDO
684	mask_size(mid,dim) = count
685	mask_size_l(mid,dim) = count_l
686
687	ELSE
688	!
689	!-- use predefined mask_loop_* array, or use the default (all grid points
690	!-- along this direction)
691	IF ( mask_loop(mid,dim,1) < 0.0_wp ) THEN
692	tmp1 = mask_loop(mid,dim,1)
693	mask_loop(mid,dim,1) = zw(nzb) ! lowest level (default)
694	ENDIF
695	IF ( dim == 1 .OR. dim == 2 ) THEN
696	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
697	tmp2 = mask_loop(mid,dim,2)
698	mask_loop(mid,dim,2) = (nxyz+1)*dxyz / mask_scale(dim) ! (default)
699	ENDIF
700	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
701	> (nxyz+1) * dxyz / mask_scale(dim) ) THEN
702	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),5A,I1,A,F9.3)' ) &
703	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
704	' and/or mask_loop(',mid,',',dim,',2)=', &
705	mask_loop(mid,dim,2),' exceed (', &
706	nxyz_string,'+1)*',dxyz_string,'/mask_scale(',dim,')=', &
707	(nxyz+1)*dxyz/mask_scale(dim)
708	CALL message( 'init_masks', 'PA0332', 1, 2, 0, 6, 0 )
709	ENDIF
710	loop_begin = NINT( mask_loop(mid,dim,1) * mask_scale(dim) &
711	* ddxyz - 0.5_wp )
712	loop_end = NINT( mask_loop(mid,dim,2) * mask_scale(dim) &
713	* ddxyz - 0.5_wp )
714	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) &
715	* ddxyz )
716	IF ( loop_begin == -1 ) loop_begin = 0 ! avoid negative values
717	ELSEIF ( dim == 3 ) THEN
718	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
719	tmp2 = mask_loop(mid,dim,2)
720	mask_loop(mid,dim,2) = zu(nz+1) / mask_scale(dim) ! (default)
721	ENDIF
722	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
723	> zu(nz+1) / mask_scale(dim) ) THEN
724	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),A,I1,A,F9.3)' ) &
725	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
726	' and/or mask_loop(',mid,',',dim,',2)=', &
727	mask_loop(mid,dim,2),' exceed zu(nz+1)/mask_scale(',dim, &
728	')=',zu(nz+1)/mask_scale(dim)
729	CALL message( 'init_masks', 'PA0333', 1, 2, 0, 6, 0 )
730	ENDIF
731	ind_array = &
732	MINLOC( ABS( mask_loop(mid,dim,1) * mask_scale(dim) - zu ) )
733	loop_begin = &
734	ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
735	ind_array = &
736	MINLOC( ABS( mask_loop(mid,dim,2) * mask_scale(dim) - zu ) )
737	loop_end = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
738	!
739	!-- The following line assumes a constant vertical grid spacing within
740	!-- the vertical mask range; it fails for vertical grid stretching.
741	!-- Maybe revise later. Issue warning but continue execution. ABS(...)
742	!-- within the IF statement is necessary because the default value of
743	!-- dz_stretch_level_start is -9999999.9_wp.
744	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) * ddxyz )
745
746	IF ( mask_loop(mid,dim,2) * mask_scale(dim) > &
747	ABS( dz_stretch_level_start(1) ) ) THEN
748	WRITE ( message_string, '(A,I3,A,I1,A,F9.3,A,F8.2,3A)' ) &
749	'mask_loop(',mid,',',dim,',2)=', mask_loop(mid,dim,2), &
750	' exceeds dz_stretch_level=',dz_stretch_level_start(1), &
751	'.&Vertical mask locations will not ', &
752	'match the desired heights within the stretching ', &
753	'region.'
754	CALL message( 'init_masks', 'PA0334', 0, 1, 0, 6, 0 )
755	ENDIF
756
757	ENDIF
758	!
759	!-- If necessary, reset mask_loop(mid,dim,1) and mask_loop(mid,dim,2).
760	IF ( tmp1 < 0.0_wp ) mask_loop(mid,dim,1) = tmp1
761	IF ( tmp2 < 0.0_wp ) mask_loop(mid,dim,2) = tmp2
762	!
763	!-- The default stride +/-1 (every grid point) applies if
764	!-- mask_loop(mid,dim,3) is not specified (its default is zero).
765	IF ( loop_stride == 0 ) THEN
766	IF ( loop_end >= loop_begin ) THEN
767	loop_stride = 1
768	ELSE
769	loop_stride = -1
770	ENDIF
771	ENDIF
772	DO m = loop_begin, loop_end, loop_stride
773	count = count + 1
774	IF ( ( m >= lb .AND. m <= ub ) .OR. &
775	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
776	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
777	count_l = count_l + 1
778	IF ( dim == 1 ) THEN
779	mask_i(mid,count_l) = m
780	ELSEIF ( dim == 2 ) THEN
781	mask_j(mid,count_l) = m
782	ELSEIF ( dim == 3 ) THEN
783	mask_k(mid,count_l) = m
784	ENDIF
785	ENDIF
786	ENDDO
787	mask_size(mid,dim) = count
788	mask_size_l(mid,dim) = count_l
789
790	ENDIF
791
792	END SUBROUTINE set_mask_locations
793
794	END SUBROUTINE init_masks

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