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source: palm/trunk/SOURCE/init_masks.f90 @ 3422

Last change on this file since 3422 was 3421, checked in by gronemeier, 6 years ago
new surface-data output; renamed output variables (pt to theta, rho_air to rho, rho_ocean to rho_sea_water)
Property svn:keywords set to `Id`
File size: 31.7 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 3421 2018-10-24 18:39:32Z gronemeier $
27	! Renamed output variables
28	!
29	! 3419 2018-10-24 17:27:31Z gronemeier
30	! ocean renamed ocean_mode
31	!
32	! 3274 2018-09-24 15:42:55Z knoop
33	! Modularization of all bulk cloud physics code components
34	!
35	! 3065 2018-06-12 07:03:02Z Giersch
36	! dz_stretch_level was replaced by dz_stretch_level_start
37	!
38	! 3049 2018-05-29 13:52:36Z Giersch
39	! Error messages revised
40	!
41	! 3045 2018-05-28 07:55:41Z Giersch
42	! Error messages revised
43	!
44	! 2718 2018-01-02 08:49:38Z maronga
45	! Corrected "Former revisions" section
46	!
47	! 2696 2017-12-14 17:12:51Z kanani
48	! Change in file header (GPL part)
49	!
50	! 2344 2017-08-09 11:00:34Z raasch
51	! explicit setting of initial values for array domask required due to a bug
52	! in the Cray compiler (appears only if option -eD is used)
53	!
54	! 2301 2017-06-29 16:41:21Z gronemeier
55	! Bugfix: set variable name length to global value
56	!
57	!
58	! Implementation of new microphysic scheme: cloud_scheme = 'morrison'
59	! includes two more prognostic equations for cloud drop concentration (nc)
60	! and cloud water content (qc).
61	!
62	! 2271 2017-06-09 12:34:55Z sward
63	! Changed error message
64	!
65	! 2101 2017-01-05 16:42:31Z suehring
66	!
67	! 2031 2016-10-21 15:11:58Z knoop
68	! renamed variable rho to rho_ocean
69	!
70	! 2000 2016-08-20 18:09:15Z knoop
71	! Forced header and separation lines into 80 columns
72	!
73	! 1822 2016-04-07 07:49:42Z hoffmann
74	! icloud_scheme replaced by microphysics_*
75	!
76	! 1804 2016-04-05 16:30:18Z maronga
77	! Removed code for parameter file check (__check)
78	!
79	! 1783 2016-03-06 18:36:17Z raasch
80	! netcdf module name changed + related changes
81	!
82	! 1682 2015-10-07 23:56:08Z knoop
83	! Code annotations made doxygen readable
84	!
85	! 1438 2014-07-22 14:14:06Z heinze
86	! +nr, qc, qr
87	!
88	! 1414 2014-05-31 11:19:48Z gronemeier
89	! Bugfix: first and last grid points as they appear in 3D volume data can now
90	! be included to masked data output
91	!
92	! 1353 2014-04-08 15:21:23Z heinze
93	! REAL constants provided with KIND-attribute
94	!
95	! 1324 2014-03-21 09:13:16Z suehring
96	! Bugfix: ONLY statement for module netcdf_control removed
97	!
98	! 1320 2014-03-20 08:40:49Z raasch
99	! ONLY-attribute added to USE-statements,
100	! kind-parameters added to all INTEGER and REAL declaration statements,
101	! kinds are defined in new module kinds,
102	! revision history before 2012 removed,
103	! comment fields (!:) to be used for variable explanations added to
104	! all variable declaration statements
105	!
106	! 1186 2013-06-18 06:22:52Z raasch
107	! bugfix: 0.0 replaced by zu(nzb) as the lowest default height level for masks,
108	! because a zero value does not work in case of ocean runs
109	!
110	! 1036 2012-10-22 13:43:42Z raasch
111	! code put under GPL (PALM 3.9)
112	!
113	! 1032 2012-10-21 13:03:21Z letzel
114	! mask locations determined based on scalar positions
115	!
116	! 1031 2012-10-19 14:35:30Z raasch
117	! netCDF4 without parallel file support implemented
118	!
119	! 996 2012-09-07 10:41:47Z raasch
120	! little reformatting
121	!
122	! 978 2012-08-09 08:28:32Z fricke
123	! +z0h*
124	!
125	! 809 2012-01-30 13:32:58Z maronga
126	! Bugfix: replaced .AND. and .NOT. with && and ! in the preprocessor directives
127	!
128	! 807 2012-01-25 11:53:51Z maronga
129	! New cpp directive "__check" implemented which is used by check_namelist_files
130	!
131	! 410 2009-12-04 17:05:40Z letzel
132	! Initial revision
133	!
134	!
135	! Description:
136	! ------------
137	!> Initialize masked data output
138	!------------------------------------------------------------------------------!
139	SUBROUTINE init_masks
140
141	USE arrays_3d, &
142	ONLY: zu, zw
143
144	USE control_parameters, &
145	ONLY: constant_diffusion, cloud_droplets, &
146	data_output_masks, data_output_masks_user, &
147	doav, doav_n, domask, domask_no, dz, dz_stretch_level_start, &
148	humidity, mask, masks, mask_scale, mask_i, &
149	mask_i_global, mask_j, mask_j_global, mask_k, mask_k_global, &
150	mask_loop, mask_size, mask_size_l, mask_start_l, mask_x, &
151	mask_x_loop, mask_xyz_dimension, mask_y, mask_y_loop, mask_z, &
152	mask_z_loop, max_masks, message_string, mid, &
153	passive_scalar, ocean_mode, varnamelength
154
155
156	USE grid_variables, &
157	ONLY: dx, dy
158
159	USE indices, &
160	ONLY: nx, nxl, nxr, ny, nyn, nys, nz, nzb, nzt
161
162	USE kinds
163
164	USE bulk_cloud_model_mod, &
165	ONLY: bulk_cloud_model, microphysics_morrison, microphysics_seifert
166
167	USE netcdf_interface, &
168	ONLY: domask_unit, netcdf_data_format
169
170	USE particle_attributes, &
171	ONLY: particle_advection
172
173	USE pegrid
174
175	IMPLICIT NONE
176
177	CHARACTER (LEN=varnamelength) :: var !<
178	CHARACTER (LEN=7) :: unit !<
179
180	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask !<
181	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask_user !<
182
183	INTEGER(iwp) :: i !<
184	INTEGER(iwp) :: ilen !<
185	INTEGER(iwp) :: ind(6) !<
186	INTEGER(iwp) :: ind_array(1) !<
187	INTEGER(iwp) :: j !<
188	INTEGER(iwp) :: k !<
189	INTEGER(iwp) :: n !<
190	INTEGER(iwp) :: sender !<
191
192	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: tmp_array !<
193
194	LOGICAL :: found !<
195
196	!
197	!-- Initial values are explicitly set here due to a bug in the Cray compiler
198	!-- in case of assignments of initial values in declaration statements for
199	!-- arrays with more than 9999 elements (appears with -eD only)
200	domask = ' '
201
202	!
203	!-- Allocation and initialization
204	ALLOCATE( tmp_array( MAX(nx,ny,nz)+2 ) )
205
206	ALLOCATE( mask_i(max_masks,nxr-nxl+2), &
207	mask_j(max_masks,nyn-nys+2), &
208	mask_k(max_masks,nzt-nzb+2) )
209	!
210	!-- internal mask arrays ("mask,dimension,selection")
211	ALLOCATE( mask(max_masks,3,mask_xyz_dimension), &
212	mask_loop(max_masks,3,3) )
213
214	!
215	!-- Parallel mask output not yet supported. In check_parameters data format
216	!-- is restricted and is switched back to non-parallel output. Therefore the
217	!-- following error can not occur at the moment.
218	IF ( netcdf_data_format > 4 ) THEN
219	message_string = 'netCDF file formats '// &
220	'5 and 6 (with parallel I/O support)'// &
221	' are currently not supported.'
222	CALL message( 'init_masks', 'PA0328', 1, 2, 0, 6, 0 )
223	ENDIF
224
225	!
226	!-- Store data output parameters for masked data output in few shared arrays
227	DO mid = 1, masks
228
229	do_mask (mid,:) = data_output_masks(mid,:)
230	do_mask_user(mid,:) = data_output_masks_user(mid,:)
231	mask (mid,1,:) = mask_x(mid,:)
232	mask (mid,2,:) = mask_y(mid,:)
233	mask (mid,3,:) = mask_z(mid,:)
234
235	IF ( mask_x_loop(mid,1) == -1.0_wp .AND. mask_x_loop(mid,2) == -1.0_wp&
236	.AND. mask_x_loop(mid,3) == -1.0_wp ) THEN
237	mask_loop(mid,1,1:2) = -1.0_wp
238	mask_loop(mid,1,3) = 0.0_wp
239	ELSE
240	mask_loop(mid,1,:) = mask_x_loop(mid,:)
241	ENDIF
242	IF ( mask_y_loop(mid,1) == -1.0_wp .AND. mask_y_loop(mid,2) == -1.0_wp&
243	.AND. mask_y_loop(mid,3) == -1.0_wp ) THEN
244	mask_loop(mid,2,1:2) = -1.0_wp
245	mask_loop(mid,2,3) = 0.0_wp
246	ELSE
247	mask_loop(mid,2,:) = mask_y_loop(mid,:)
248	ENDIF
249	IF ( mask_z_loop(mid,1) == -1.0_wp .AND. mask_z_loop(mid,2) == -1.0_wp&
250	.AND. mask_z_loop(mid,3) == -1.0_wp ) THEN
251	mask_loop(mid,3,1:2) = -1.0_wp
252	mask_loop(mid,3,3) = 0.0_wp
253	ELSE
254	mask_loop(mid,3,:) = mask_z_loop(mid,:)
255	ENDIF
256
257	ENDDO
258
259	mask_i = -1; mask_j = -1; mask_k = -1
260
261	!
262	!-- Global arrays are required by define_netcdf_header.
263	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
264	ALLOCATE( mask_i_global(max_masks,nx+2), &
265	mask_j_global(max_masks,ny+2), &
266	mask_k_global(max_masks,nz+2) )
267	mask_i_global = -1; mask_j_global = -1; mask_k_global = -1
268	ENDIF
269
270	!
271	!-- Determine variable names for each mask
272	DO mid = 1, masks
273	!
274	!-- Append user-defined data output variables to the standard data output
275	IF ( do_mask_user(mid,1) /= ' ' ) THEN
276	i = 1
277	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
278	i = i + 1
279	ENDDO
280	j = 1
281	DO WHILE ( do_mask_user(mid,j) /= ' ' .AND. j <= 100 )
282	IF ( i > 100 ) THEN
283	WRITE ( message_string, * ) 'number of output quantitities ', &
284	'given by data_output_mask and data_output_mask_user ', &
285	'exceeds the limit of 100'
286	CALL message( 'init_masks', 'PA0329', 1, 2, 0, 6, 0 )
287	ENDIF
288	do_mask(mid,i) = do_mask_user(mid,j)
289	i = i + 1
290	j = j + 1
291	ENDDO
292	ENDIF
293
294	!
295	!-- Check and set steering parameters for mask data output and averaging
296	i = 1
297	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
298	!
299	!-- Check for data averaging
300	ilen = LEN_TRIM( do_mask(mid,i) )
301	j = 0 ! no data averaging
302	IF ( ilen > 3 ) THEN
303	IF ( do_mask(mid,i)(ilen-2:ilen) == '_av' ) THEN
304	j = 1 ! data averaging
305	do_mask(mid,i) = do_mask(mid,i)(1:ilen-3)
306	ENDIF
307	ENDIF
308	var = TRIM( do_mask(mid,i) )
309	!
310	!-- Check for allowed value and set units
311	SELECT CASE ( TRIM( var ) )
312
313	CASE ( 'e' )
314	IF ( constant_diffusion ) THEN
315	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
316	'" requires constant_diffusion = .FALSE.'
317	CALL message( 'init_masks', 'PA0103', 1, 2, 0, 6, 0 )
318	ENDIF
319	unit = 'm2/s2'
320
321	CASE ( 'thetal' )
322	IF ( .NOT. bulk_cloud_model ) THEN
323	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
324	'" requires bulk_cloud_model = .TRUE.'
325	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
326	ENDIF
327	unit = 'K'
328
329	CASE ( 'nc' )
330	IF ( .NOT. bulk_cloud_model ) THEN
331	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
332	'" requires bulk_cloud_model = .TRUE.'
333	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
334	ELSEIF ( .NOT. microphysics_morrison ) THEN
335	message_string = 'output of "' // TRIM( var ) // '" ' // &
336	'requires = morrison'
337	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
338	ENDIF
339	unit = '1/m3'
340
341	CASE ( 'nr' )
342	IF ( .NOT. bulk_cloud_model ) THEN
343	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
344	'" requires bulk_cloud_model = .TRUE.'
345	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
346	ELSEIF ( .NOT. microphysics_seifert ) THEN
347	message_string = 'output of "' // TRIM( var ) // '"' // &
348	'requires cloud_scheme = seifert_beheng'
349	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
350	ENDIF
351	unit = '1/m3'
352
353	CASE ( 'pc', 'pr' )
354	IF ( .NOT. particle_advection ) THEN
355	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
356	'" requires a "particles_par"-NAMELIST in the ', &
357	'parameter file (PARIN)'
358	CALL message( 'init_masks', 'PA0104', 1, 2, 0, 6, 0 )
359	ENDIF
360	IF ( TRIM( var ) == 'pc' ) unit = 'number'
361	IF ( TRIM( var ) == 'pr' ) unit = 'm'
362
363	CASE ( 'q', 'thetav' )
364	IF ( .NOT. humidity ) THEN
365	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
366	'" requires humidity = .TRUE.'
367	CALL message( 'init_masks', 'PA0105', 1, 2, 0, 6, 0 )
368	ENDIF
369	IF ( TRIM( var ) == 'q' ) unit = 'kg/kg'
370	IF ( TRIM( var ) == 'thetav' ) unit = 'K'
371
372	CASE ( 'qc' )
373	IF ( .NOT. bulk_cloud_model ) THEN
374	message_string = 'output of "' // TRIM( var ) // '"' // &
375	'requires bulk_cloud_model = .TRUE.'
376	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
377	ENDIF
378	unit = 'kg/kg'
379
380	CASE ( 'ql' )
381	IF ( .NOT. ( bulk_cloud_model .OR. cloud_droplets ) ) THEN
382	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
383	'" requires bulk_cloud_model = .TRUE. or ', &
384	'cloud_droplets = .TRUE.'
385	CALL message( 'init_masks', 'PA0106', 1, 2, 0, 6, 0 )
386	ENDIF
387	unit = 'kg/kg'
388
389	CASE ( 'ql_c', 'ql_v', 'ql_vp' )
390	IF ( .NOT. cloud_droplets ) THEN
391	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
392	'" requires cloud_droplets = .TRUE.'
393	CALL message( 'init_masks', 'PA0107', 1, 2, 0, 6, 0 )
394	ENDIF
395	IF ( TRIM( var ) == 'ql_c' ) unit = 'kg/kg'
396	IF ( TRIM( var ) == 'ql_v' ) unit = 'm3'
397	IF ( TRIM( var ) == 'ql_vp' ) unit = 'none'
398
399	CASE ( 'qv' )
400	IF ( .NOT. bulk_cloud_model ) THEN
401	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
402	'" requires bulk_cloud_model = .TRUE.'
403	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
404	ENDIF
405	unit = 'kg/kg'
406
407	CASE ( 'qr' )
408	IF ( .NOT. bulk_cloud_model ) THEN
409	message_string = 'output of "' // TRIM( var ) // '" ' // &
410	'requires bulk_cloud_model = .TRUE.'
411	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
412	ELSEIF ( .NOT. microphysics_seifert ) THEN
413	message_string = 'output of "' // TRIM( var ) // '" ' // &
414	'requires cloud_scheme = seifert_beheng'
415	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
416	ENDIF
417	unit = 'kg/kg'
418
419	CASE ( 'rho_sea_water' )
420	IF ( .NOT. ocean_mode ) THEN
421	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
422	'" requires ocean mode'
423	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
424	ENDIF
425	unit = 'kg/m3'
426
427	CASE ( 's' )
428	IF ( .NOT. passive_scalar ) THEN
429	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
430	'" requires passive_scalar = .TRUE.'
431	CALL message( 'init_masks', 'PA0110', 1, 2, 0, 6, 0 )
432	ENDIF
433	unit = 'conc'
434
435	CASE ( 'sa' )
436	IF ( .NOT. ocean_mode ) THEN
437	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
438	'" requires ocean mode'
439	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
440	ENDIF
441	unit = 'psu'
442
443	CASE ( 'us', 't', 'lwp', 'pra', 'prr', 'z0', 'z0h*' )
444	WRITE ( message_string, * ) 'illegal value for data_', &
445	'output: "', TRIM( var ), '" is only allowed', &
446	'for horizontal cross section'
447	CALL message( 'init_masks', 'PA0111', 1, 2, 0, 6, 0 )
448
449	CASE ( 'p', 'theta', 'u', 'v', 'w' )
450	IF ( TRIM( var ) == 'p' ) unit = 'Pa'
451	IF ( TRIM( var ) == 'theta' ) unit = 'K'
452	IF ( TRIM( var ) == 'u' ) unit = 'm/s'
453	IF ( TRIM( var ) == 'v' ) unit = 'm/s'
454	IF ( TRIM( var ) == 'w' ) unit = 'm/s'
455	CONTINUE
456
457	CASE DEFAULT
458	CALL user_check_data_output( var, unit )
459
460	IF ( unit == 'illegal' ) THEN
461	IF ( do_mask_user(mid,1) /= ' ' ) THEN
462	WRITE ( message_string, * ) 'illegal value for data_', &
463	'output_masks or data_output_masks_user: "', &
464	TRIM( do_mask(mid,i) ), '"'
465	CALL message( 'init_masks', 'PA0018', 1, 2, 0, 6, 0 )
466	ELSE
467	WRITE ( message_string, * ) 'illegal value for data_', &
468	' output_masks : "', TRIM( do_mask(mid,i) ), '"'
469	CALL message( 'init_masks', 'PA0330', 1, 2, 0, 6, 0 )
470	ENDIF
471	ENDIF
472
473	END SELECT
474	!
475	!-- Set the internal steering parameters appropriately
476	domask_no(mid,j) = domask_no(mid,j) + 1
477	domask(mid,j,domask_no(mid,j)) = do_mask(mid,i)
478	domask_unit(mid,j,domask_no(mid,j)) = unit
479
480	IF ( j == 1 ) THEN
481	!
482	!-- Check, if variable is already subject to averaging
483	found = .FALSE.
484	DO k = 1, doav_n
485	IF ( TRIM( doav(k) ) == TRIM( var ) ) found = .TRUE.
486	ENDDO
487
488	IF ( .NOT. found ) THEN
489	doav_n = doav_n + 1
490	doav(doav_n) = var
491	ENDIF
492	ENDIF
493
494	i = i + 1
495
496	ENDDO ! do_mask(mid,i)
497	ENDDO ! mid
498
499
500	!
501	!-- Determine mask locations for each mask
502	DO mid = 1, masks
503	!
504	!-- Set local masks for each subdomain along all three dimensions
505	CALL set_mask_locations( 1, dx, 'dx', nx, 'nx', nxl, nxr )
506	CALL set_mask_locations( 2, dy, 'dy', ny, 'ny', nys, nyn )
507	CALL set_mask_locations( 3, dz(1), 'dz', nz, 'nz', nzb, nzt )
508	!
509	!-- Set global masks along all three dimensions (required by
510	!-- define_netcdf_header).
511	#if defined( __parallel )
512	!
513	!-- PE0 receives partial arrays from all processors of the respective mask
514	!-- and outputs them. Here a barrier has to be set, because otherwise
515	!-- "-MPI- FATAL: Remote protocol queue full" may occur.
516
517	CALL MPI_BARRIER( comm2d, ierr )
518
519	IF ( myid == 0 ) THEN
520	!
521	!-- Local arrays can be relocated directly.
522	mask_i_global(mid,mask_start_l(mid,1): &
523	mask_start_l(mid,1)+mask_size_l(mid,1)-1) = &
524	mask_i(mid,:mask_size_l(mid,1))
525	mask_j_global(mid,mask_start_l(mid,2): &
526	mask_start_l(mid,2)+mask_size_l(mid,2)-1) = &
527	mask_j(mid,:mask_size_l(mid,2))
528	mask_k_global(mid,mask_start_l(mid,3): &
529	mask_start_l(mid,3)+mask_size_l(mid,3)-1) = &
530	mask_k(mid,:mask_size_l(mid,3))
531	!
532	!-- Receive data from all other PEs.
533	DO n = 1, numprocs-1
534	!
535	!-- Receive index limits first, then arrays.
536	!-- Index limits are received in arbitrary order from the PEs.
537	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, &
538	comm2d, status, ierr )
539	!
540	!-- Not all PEs have data for the mask.
541	IF ( ind(1) /= -9999 ) THEN
542	sender = status(MPI_SOURCE)
543	CALL MPI_RECV( tmp_array(ind(1)), ind(2)-ind(1)+1, &
544	MPI_INTEGER, sender, 1, comm2d, status, ierr )
545	mask_i_global(mid,ind(1):ind(2)) = tmp_array(ind(1):ind(2))
546	CALL MPI_RECV( tmp_array(ind(3)), ind(4)-ind(3)+1, &
547	MPI_INTEGER, sender, 2, comm2d, status, ierr )
548	mask_j_global(mid,ind(3):ind(4)) = tmp_array(ind(3):ind(4))
549	CALL MPI_RECV( tmp_array(ind(5)), ind(6)-ind(5)+1, &
550	MPI_INTEGER, sender, 3, comm2d, status, ierr )
551	mask_k_global(mid,ind(5):ind(6)) = tmp_array(ind(5):ind(6))
552	ENDIF
553	ENDDO
554
555	ELSE
556	!
557	!-- If at least part of the mask resides on the PE, send the index limits
558	!-- for the target array, otherwise send -9999 to PE0.
559	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
560	mask_size_l(mid,3) > 0 ) THEN
561	ind(1) = mask_start_l(mid,1)
562	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
563	ind(3) = mask_start_l(mid,2)
564	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
565	ind(5) = mask_start_l(mid,3)
566	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
567	ELSE
568	ind(1) = -9999; ind(2) = -9999
569	ind(3) = -9999; ind(4) = -9999
570	ind(5) = -9999; ind(6) = -9999
571	ENDIF
572	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
573	!
574	!-- If applicable, send data to PE0.
575	IF ( ind(1) /= -9999 ) THEN
576	tmp_array(:mask_size_l(mid,1)) = mask_i(mid,:mask_size_l(mid,1))
577	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,1), &
578	MPI_INTEGER, 0, 1, comm2d, ierr )
579	tmp_array(:mask_size_l(mid,2)) = mask_j(mid,:mask_size_l(mid,2))
580	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,2), &
581	MPI_INTEGER, 0, 2, comm2d, ierr )
582	tmp_array(:mask_size_l(mid,3)) = mask_k(mid,:mask_size_l(mid,3))
583	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,3), &
584	MPI_INTEGER, 0, 3, comm2d, ierr )
585	ENDIF
586	ENDIF
587	!
588	!-- A barrier has to be set, because otherwise some PEs may proceed too fast
589	!-- so that PE0 may receive wrong data on tag 0.
590	CALL MPI_BARRIER( comm2d, ierr )
591
592	IF ( netcdf_data_format > 4 ) THEN
593
594	CALL MPI_BCAST( mask_i_global(mid,:), nx+2, MPI_INTEGER, 0, comm2d, &
595	ierr )
596	CALL MPI_BCAST( mask_j_global(mid,:), ny+2, MPI_INTEGER, 0, comm2d, &
597	ierr )
598	CALL MPI_BCAST( mask_k_global(mid,:), nz+2, MPI_INTEGER, 0, comm2d, &
599	ierr )
600
601	ENDIF
602
603	#else
604	!
605	!-- Local arrays can be relocated directly.
606	mask_i_global(mid,:) = mask_i(mid,:)
607	mask_j_global(mid,:) = mask_j(mid,:)
608	mask_k_global(mid,:) = mask_k(mid,:)
609	#endif
610	ENDDO ! mid
611
612	DEALLOCATE( tmp_array )
613	!
614	!-- Internal mask arrays cannot be deallocated on PE 0 because they are
615	!-- required for header output on PE 0.
616	IF ( myid /= 0 ) DEALLOCATE( mask, mask_loop )
617
618	CONTAINS
619
620	!------------------------------------------------------------------------------!
621	! Description:
622	! ------------
623	!> Set local mask for each subdomain along 'dim' direction.
624	!------------------------------------------------------------------------------!
625	SUBROUTINE set_mask_locations( dim, dxyz, dxyz_string, nxyz, nxyz_string, &
626	lb, ub )
627
628	IMPLICIT NONE
629
630	CHARACTER (LEN=2) :: dxyz_string !<
631	CHARACTER (LEN=2) :: nxyz_string !<
632
633	INTEGER(iwp) :: count !<
634	INTEGER(iwp) :: count_l !<
635	INTEGER(iwp) :: dim !<
636	INTEGER(iwp) :: m !<
637	INTEGER(iwp) :: loop_begin !<
638	INTEGER(iwp) :: loop_end !<
639	INTEGER(iwp) :: loop_stride !<
640	INTEGER(iwp) :: lb !<
641	INTEGER(iwp) :: nxyz !<
642	INTEGER(iwp) :: ub !<
643
644	REAL(wp) :: dxyz !<
645	REAL(wp) :: ddxyz !<
646	REAL(wp) :: tmp1 !<
647	REAL(wp) :: tmp2 !<
648
649	count = 0; count_l = 0
650	ddxyz = 1.0_wp / dxyz
651	tmp1 = 0.0_wp
652	tmp2 = 0.0_wp
653
654	IF ( mask(mid,dim,1) >= 0.0_wp ) THEN
655	!
656	!-- use predefined mask_* array
657	DO WHILE ( mask(mid,dim,count+1) >= 0.0_wp )
658	count = count + 1
659	IF ( dim == 1 .OR. dim == 2 ) THEN
660	m = NINT( mask(mid,dim,count) * mask_scale(dim) * ddxyz - 0.5_wp )
661	IF ( m < 0 ) m = 0 ! avoid negative values
662	ELSEIF ( dim == 3 ) THEN
663	ind_array = &
664	MINLOC( ABS( mask(mid,dim,count) * mask_scale(dim) - zu ) )
665	m = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
666	ENDIF
667	IF ( m > (nxyz+1) ) THEN
668	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
669	m,' in mask ',mid,' along dimension ',dim, &
670	' exceeds (',nxyz_string,'+1) = ',nxyz+1
671	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
672	ENDIF
673	IF ( ( m >= lb .AND. m <= ub ) .OR. &
674	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
675	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
676	count_l = count_l + 1
677	IF ( dim == 1 ) THEN
678	mask_i(mid,count_l) = m
679	ELSEIF ( dim == 2 ) THEN
680	mask_j(mid,count_l) = m
681	ELSEIF ( dim == 3 ) THEN
682	mask_k(mid,count_l) = m
683	ENDIF
684	ENDIF
685	IF ( count == mask_xyz_dimension ) EXIT
686	ENDDO
687	mask_size(mid,dim) = count
688	mask_size_l(mid,dim) = count_l
689
690	ELSE
691	!
692	!-- use predefined mask_loop_* array, or use the default (all grid points
693	!-- along this direction)
694	IF ( mask_loop(mid,dim,1) < 0.0_wp ) THEN
695	tmp1 = mask_loop(mid,dim,1)
696	mask_loop(mid,dim,1) = zw(nzb) ! lowest level (default)
697	ENDIF
698	IF ( dim == 1 .OR. dim == 2 ) THEN
699	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
700	tmp2 = mask_loop(mid,dim,2)
701	mask_loop(mid,dim,2) = (nxyz+1)*dxyz / mask_scale(dim) ! (default)
702	ENDIF
703	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
704	> (nxyz+1) * dxyz / mask_scale(dim) ) THEN
705	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),5A,I1,A,F9.3)' ) &
706	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
707	' and/or mask_loop(',mid,',',dim,',2)=', &
708	mask_loop(mid,dim,2),' exceed (', &
709	nxyz_string,'+1)*',dxyz_string,'/mask_scale(',dim,')=', &
710	(nxyz+1)*dxyz/mask_scale(dim)
711	CALL message( 'init_masks', 'PA0332', 1, 2, 0, 6, 0 )
712	ENDIF
713	loop_begin = NINT( mask_loop(mid,dim,1) * mask_scale(dim) &
714	* ddxyz - 0.5_wp )
715	loop_end = NINT( mask_loop(mid,dim,2) * mask_scale(dim) &
716	* ddxyz - 0.5_wp )
717	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) &
718	* ddxyz )
719	IF ( loop_begin == -1 ) loop_begin = 0 ! avoid negative values
720	ELSEIF ( dim == 3 ) THEN
721	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
722	tmp2 = mask_loop(mid,dim,2)
723	mask_loop(mid,dim,2) = zu(nz+1) / mask_scale(dim) ! (default)
724	ENDIF
725	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
726	> zu(nz+1) / mask_scale(dim) ) THEN
727	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),A,I1,A,F9.3)' ) &
728	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
729	' and/or mask_loop(',mid,',',dim,',2)=', &
730	mask_loop(mid,dim,2),' exceed zu(nz+1)/mask_scale(',dim, &
731	')=',zu(nz+1)/mask_scale(dim)
732	CALL message( 'init_masks', 'PA0333', 1, 2, 0, 6, 0 )
733	ENDIF
734	ind_array = &
735	MINLOC( ABS( mask_loop(mid,dim,1) * mask_scale(dim) - zu ) )
736	loop_begin = &
737	ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
738	ind_array = &
739	MINLOC( ABS( mask_loop(mid,dim,2) * mask_scale(dim) - zu ) )
740	loop_end = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
741	!
742	!-- The following line assumes a constant vertical grid spacing within
743	!-- the vertical mask range; it fails for vertical grid stretching.
744	!-- Maybe revise later. Issue warning but continue execution. ABS(...)
745	!-- within the IF statement is necessary because the default value of
746	!-- dz_stretch_level_start is -9999999.9_wp.
747	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) * ddxyz )
748
749	IF ( mask_loop(mid,dim,2) * mask_scale(dim) > &
750	ABS( dz_stretch_level_start(1) ) ) THEN
751	WRITE ( message_string, '(A,I3,A,I1,A,F9.3,A,F8.2,3A)' ) &
752	'mask_loop(',mid,',',dim,',2)=', mask_loop(mid,dim,2), &
753	' exceeds dz_stretch_level=',dz_stretch_level_start(1), &
754	'.&Vertical mask locations will not ', &
755	'match the desired heights within the stretching ', &
756	'region.'
757	CALL message( 'init_masks', 'PA0334', 0, 1, 0, 6, 0 )
758	ENDIF
759
760	ENDIF
761	!
762	!-- If necessary, reset mask_loop(mid,dim,1) and mask_loop(mid,dim,2).
763	IF ( tmp1 < 0.0_wp ) mask_loop(mid,dim,1) = tmp1
764	IF ( tmp2 < 0.0_wp ) mask_loop(mid,dim,2) = tmp2
765	!
766	!-- The default stride +/-1 (every grid point) applies if
767	!-- mask_loop(mid,dim,3) is not specified (its default is zero).
768	IF ( loop_stride == 0 ) THEN
769	IF ( loop_end >= loop_begin ) THEN
770	loop_stride = 1
771	ELSE
772	loop_stride = -1
773	ENDIF
774	ENDIF
775	DO m = loop_begin, loop_end, loop_stride
776	count = count + 1
777	IF ( ( m >= lb .AND. m <= ub ) .OR. &
778	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
779	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
780	count_l = count_l + 1
781	IF ( dim == 1 ) THEN
782	mask_i(mid,count_l) = m
783	ELSEIF ( dim == 2 ) THEN
784	mask_j(mid,count_l) = m
785	ELSEIF ( dim == 3 ) THEN
786	mask_k(mid,count_l) = m
787	ENDIF
788	ENDIF
789	ENDDO
790	mask_size(mid,dim) = count
791	mask_size_l(mid,dim) = count_l
792
793	ENDIF
794
795	END SUBROUTINE set_mask_locations
796
797	END SUBROUTINE init_masks

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