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source: palm/trunk/SOURCE/init_masks.f90 @ 3770

Last change on this file since 3770 was 3766, checked in by raasch, 6 years ago
unused_variables removed, bugfix in im_define_netcdf_grid argument list, trim added to avoid truncation compiler warnings, save attribute added to local targets to avoid outlive pointer target warning, first argument removed from module_interface_rrd_*, file module_interface reformatted with respect to coding standards, bugfix in surface_data_output_rrd_local (variable k removed)
Property svn:keywords set to `Id`
File size: 34.2 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 1997-2019 Leibniz Universitaet Hannover
18	!------------------------------------------------------------------------------!
19	!
20	! Current revisions:
21	! -----------------
22	!
23	!
24	! Former revisions:
25	! -----------------
26	! $Id: init_masks.f90 3766 2019-02-26 16:23:41Z moh.hefny $
27	! unused variables removed
28	!
29	! 3687 2019-01-22 10:42:06Z knoop
30	! unused variables removed
31	!
32	! 3655 2019-01-07 16:51:22Z knoop
33	! Move the control parameter "salsa" from salsa_mod to control_parameters
34	! (M. Kurppa)
35	!
36	! 3582 2018-11-29 19:16:36Z suehring
37	! add variable description
38	!
39	! 3512 2018-11-09 18:09:51Z gronemeier
40	! Bugfix: do not output ghost points if mask_x/y_loop is not specified
41	!
42	! 3467 2018-10-30 19:05:21Z suehring
43	! Implementation of a new aerosol module salsa.
44	!
45	! 3435 2018-10-26 18:25:44Z gronemeier
46	! Add checks for chemistry and radiation model
47	! Set indices for terrain-following masked output
48	!
49	! 3421 2018-10-24 18:39:32Z gronemeier
50	! Renamed output variables
51	!
52	! 3419 2018-10-24 17:27:31Z gronemeier
53	! ocean renamed ocean_mode
54	!
55	! 3274 2018-09-24 15:42:55Z knoop
56	! Modularization of all bulk cloud physics code components
57	!
58	! 3065 2018-06-12 07:03:02Z Giersch
59	! dz_stretch_level was replaced by dz_stretch_level_start
60	!
61	! 3049 2018-05-29 13:52:36Z Giersch
62	! Error messages revised
63	!
64	! 3045 2018-05-28 07:55:41Z Giersch
65	! Error messages revised
66	!
67	! 2718 2018-01-02 08:49:38Z maronga
68	! Corrected "Former revisions" section
69	!
70	! 2696 2017-12-14 17:12:51Z kanani
71	! Change in file header (GPL part)
72	!
73	! 2344 2017-08-09 11:00:34Z raasch
74	! explicit setting of initial values for array domask required due to a bug
75	! in the Cray compiler (appears only if option -eD is used)
76	!
77	! 2301 2017-06-29 16:41:21Z gronemeier
78	! Bugfix: set variable name length to global value
79	!
80	!
81	! Implementation of new microphysic scheme: cloud_scheme = 'morrison'
82	! includes two more prognostic equations for cloud drop concentration (nc)
83	! and cloud water content (qc).
84	!
85	! 2271 2017-06-09 12:34:55Z sward
86	! Changed error message
87	!
88	! 2101 2017-01-05 16:42:31Z suehring
89	!
90	! 2031 2016-10-21 15:11:58Z knoop
91	! renamed variable rho to rho_ocean
92	!
93	! 2000 2016-08-20 18:09:15Z knoop
94	! Forced header and separation lines into 80 columns
95	!
96	! 1822 2016-04-07 07:49:42Z hoffmann
97	! icloud_scheme replaced by microphysics_*
98	!
99	! 1804 2016-04-05 16:30:18Z maronga
100	! Removed code for parameter file check (__check)
101	!
102	! 1783 2016-03-06 18:36:17Z raasch
103	! netcdf module name changed + related changes
104	!
105	! 1682 2015-10-07 23:56:08Z knoop
106	! Code annotations made doxygen readable
107	!
108	! 1438 2014-07-22 14:14:06Z heinze
109	! +nr, qc, qr
110	!
111	! 1414 2014-05-31 11:19:48Z gronemeier
112	! Bugfix: first and last grid points as they appear in 3D volume data can now
113	! be included to masked data output
114	!
115	! 1353 2014-04-08 15:21:23Z heinze
116	! REAL constants provided with KIND-attribute
117	!
118	! 1324 2014-03-21 09:13:16Z suehring
119	! Bugfix: ONLY statement for module netcdf_control removed
120	!
121	! 1320 2014-03-20 08:40:49Z raasch
122	! ONLY-attribute added to USE-statements,
123	! kind-parameters added to all INTEGER and REAL declaration statements,
124	! kinds are defined in new module kinds,
125	! revision history before 2012 removed,
126	! comment fields (!:) to be used for variable explanations added to
127	! all variable declaration statements
128	!
129	! 1186 2013-06-18 06:22:52Z raasch
130	! bugfix: 0.0 replaced by zu(nzb) as the lowest default height level for masks,
131	! because a zero value does not work in case of ocean runs
132	!
133	! 1036 2012-10-22 13:43:42Z raasch
134	! code put under GPL (PALM 3.9)
135	!
136	! 1032 2012-10-21 13:03:21Z letzel
137	! mask locations determined based on scalar positions
138	!
139	! 1031 2012-10-19 14:35:30Z raasch
140	! netCDF4 without parallel file support implemented
141	!
142	! 996 2012-09-07 10:41:47Z raasch
143	! little reformatting
144	!
145	! 978 2012-08-09 08:28:32Z fricke
146	! +z0h*
147	!
148	! 809 2012-01-30 13:32:58Z maronga
149	! Bugfix: replaced .AND. and .NOT. with && and ! in the preprocessor directives
150	!
151	! 807 2012-01-25 11:53:51Z maronga
152	! New cpp directive "__check" implemented which is used by check_namelist_files
153	!
154	! 410 2009-12-04 17:05:40Z letzel
155	! Initial revision
156	!
157	!
158	! Description:
159	! ------------
160	!> Initialize masked data output
161	!------------------------------------------------------------------------------!
162	SUBROUTINE init_masks
163
164	USE arrays_3d, &
165	ONLY: zu, zw
166
167	USE bulk_cloud_model_mod, &
168	ONLY: bulk_cloud_model, microphysics_morrison, microphysics_seifert
169
170	USE control_parameters, &
171	ONLY: constant_diffusion, cloud_droplets, &
172	data_output_masks, data_output_masks_user, &
173	doav, doav_n, domask, domask_no, dz, dz_stretch_level_start, &
174	humidity, mask, masks, mask_scale, mask_i, &
175	mask_i_global, mask_j, mask_j_global, mask_k, mask_k_global, &
176	mask_k_over_surface, &
177	mask_loop, mask_size, mask_size_l, mask_start_l, &
178	mask_surface, mask_x, &
179	mask_x_loop, mask_xyz_dimension, mask_y, mask_y_loop, mask_z, &
180	mask_z_loop, max_masks, message_string, mid, &
181	passive_scalar, ocean_mode, varnamelength
182
183	USE grid_variables, &
184	ONLY: dx, dy
185
186	USE indices, &
187	ONLY: nx, nxl, nxr, ny, nyn, nys, nz, nzb, nzt
188
189	USE kinds
190
191	USE module_interface, &
192	ONLY: module_interface_init_masks
193
194	USE netcdf_interface, &
195	ONLY: domask_unit, netcdf_data_format
196
197	USE particle_attributes, &
198	ONLY: particle_advection
199
200	USE pegrid
201
202	IMPLICIT NONE
203
204	CHARACTER (LEN=varnamelength) :: var !< contains variable name
205	CHARACTER (LEN=7) :: unit !< contains unit of variable
206
207	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask !< list of output variables
208	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask_user !< list of user-specified output variables
209
210	INTEGER(iwp) :: count !< counting masking indices along a dimension
211	INTEGER(iwp) :: i !< loop index
212	INTEGER(iwp) :: ilen !< length of string saved in 'do_mask'
213	INTEGER(iwp) :: ind(6) !< index limits (lower/upper bounds) of output array
214	INTEGER(iwp) :: ind_array(1) !< array index
215	INTEGER(iwp) :: j !< loop index
216	INTEGER(iwp) :: k !< loop index
217	INTEGER(iwp) :: m !< mask index
218	INTEGER(iwp) :: n !< loop index
219	INTEGER(iwp) :: sender !< PE id of sending PE
220
221	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: tmp_array !< temporary 1D array
222
223	LOGICAL :: found !< true if variable is found
224
225	!
226	!-- Initial values are explicitly set here due to a bug in the Cray compiler
227	!-- in case of assignments of initial values in declaration statements for
228	!-- arrays with more than 9999 elements (appears with -eD only)
229	domask = ' '
230
231	!
232	!-- Allocation and initialization
233	ALLOCATE( tmp_array( MAX(nx,ny,nz)+2 ) )
234
235	ALLOCATE( mask_i(max_masks,nxr-nxl+2), &
236	mask_j(max_masks,nyn-nys+2), &
237	mask_k(max_masks,nzt-nzb+2) )
238	!
239	!-- internal mask arrays ("mask,dimension,selection")
240	ALLOCATE( mask(max_masks,3,mask_xyz_dimension), &
241	mask_loop(max_masks,3,3) )
242
243	!
244	!-- Parallel mask output not yet supported. In check_parameters data format
245	!-- is restricted and is switched back to non-parallel output. Therefore the
246	!-- following error can not occur at the moment.
247	IF ( netcdf_data_format > 4 ) THEN
248	message_string = 'netCDF file formats '// &
249	'5 and 6 (with parallel I/O support)'// &
250	' are currently not supported.'
251	CALL message( 'init_masks', 'PA0328', 1, 2, 0, 6, 0 )
252	ENDIF
253
254	!
255	!-- Store data output parameters for masked data output in few shared arrays
256	DO mid = 1, masks
257
258	do_mask (mid,:) = data_output_masks(mid,:)
259	do_mask_user(mid,:) = data_output_masks_user(mid,:)
260	mask (mid,1,:) = mask_x(mid,:)
261	mask (mid,2,:) = mask_y(mid,:)
262	mask (mid,3,:) = mask_z(mid,:)
263	!
264	!-- Flag a mask as terrain following
265	IF ( mask_k_over_surface(mid,1) /= -1_iwp ) THEN
266	mask_surface(mid) = .TRUE.
267	ENDIF
268
269	IF ( mask_x_loop(mid,1) == -1.0_wp .AND. mask_x_loop(mid,2) == -1.0_wp&
270	.AND. mask_x_loop(mid,3) == -1.0_wp ) THEN
271	mask_loop(mid,1,1:2) = -1.0_wp
272	mask_loop(mid,1,3) = 0.0_wp
273	ELSE
274	mask_loop(mid,1,:) = mask_x_loop(mid,:)
275	ENDIF
276	IF ( mask_y_loop(mid,1) == -1.0_wp .AND. mask_y_loop(mid,2) == -1.0_wp&
277	.AND. mask_y_loop(mid,3) == -1.0_wp ) THEN
278	mask_loop(mid,2,1:2) = -1.0_wp
279	mask_loop(mid,2,3) = 0.0_wp
280	ELSE
281	mask_loop(mid,2,:) = mask_y_loop(mid,:)
282	ENDIF
283	IF ( mask_z_loop(mid,1) == -1.0_wp .AND. mask_z_loop(mid,2) == -1.0_wp&
284	.AND. mask_z_loop(mid,3) == -1.0_wp ) THEN
285	mask_loop(mid,3,1:2) = -1.0_wp
286	mask_loop(mid,3,3) = 0.0_wp
287	ELSE
288	mask_loop(mid,3,:) = mask_z_loop(mid,:)
289	ENDIF
290
291	ENDDO
292
293	mask_i = -1; mask_j = -1; mask_k = -1
294
295	!
296	!-- Global arrays are required by define_netcdf_header.
297	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
298	ALLOCATE( mask_i_global(max_masks,nx+2), &
299	mask_j_global(max_masks,ny+2), &
300	mask_k_global(max_masks,nz+2) )
301	mask_i_global = -1; mask_j_global = -1; mask_k_global = -1
302	ENDIF
303
304	!
305	!-- Determine variable names for each mask
306	DO mid = 1, masks
307	!
308	!-- Append user-defined data output variables to the standard data output
309	IF ( do_mask_user(mid,1) /= ' ' ) THEN
310	i = 1
311	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
312	i = i + 1
313	ENDDO
314	j = 1
315	DO WHILE ( do_mask_user(mid,j) /= ' ' .AND. j <= 100 )
316	IF ( i > 100 ) THEN
317	WRITE ( message_string, * ) 'number of output quantitities ', &
318	'given by data_output_mask and data_output_mask_user ', &
319	'exceeds the limit of 100'
320	CALL message( 'init_masks', 'PA0329', 1, 2, 0, 6, 0 )
321	ENDIF
322	do_mask(mid,i) = do_mask_user(mid,j)
323	i = i + 1
324	j = j + 1
325	ENDDO
326	ENDIF
327
328	!
329	!-- Check and set steering parameters for mask data output and averaging
330	i = 1
331	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
332	!
333	!-- Check for data averaging
334	ilen = LEN_TRIM( do_mask(mid,i) )
335	j = 0 ! no data averaging
336	IF ( ilen > 3 ) THEN
337	IF ( do_mask(mid,i)(ilen-2:ilen) == '_av' ) THEN
338	j = 1 ! data averaging
339	do_mask(mid,i) = do_mask(mid,i)(1:ilen-3)
340	ENDIF
341	ENDIF
342	var = TRIM( do_mask(mid,i) )
343	!
344	!-- Check for allowed value and set units
345	SELECT CASE ( TRIM( var ) )
346
347	CASE ( 'e' )
348	IF ( constant_diffusion ) THEN
349	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
350	'" requires constant_diffusion = .FALSE.'
351	CALL message( 'init_masks', 'PA0103', 1, 2, 0, 6, 0 )
352	ENDIF
353	unit = 'm2/s2'
354
355	CASE ( 'thetal' )
356	IF ( .NOT. bulk_cloud_model ) THEN
357	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
358	'" requires bulk_cloud_model = .TRUE.'
359	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
360	ENDIF
361	unit = 'K'
362
363	CASE ( 'nc' )
364	IF ( .NOT. bulk_cloud_model ) THEN
365	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
366	'" requires bulk_cloud_model = .TRUE.'
367	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
368	ELSEIF ( .NOT. microphysics_morrison ) THEN
369	message_string = 'output of "' // TRIM( var ) // '" ' // &
370	'requires = morrison'
371	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
372	ENDIF
373	unit = '1/m3'
374
375	CASE ( 'nr' )
376	IF ( .NOT. bulk_cloud_model ) THEN
377	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
378	'" requires bulk_cloud_model = .TRUE.'
379	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
380	ELSEIF ( .NOT. microphysics_seifert ) THEN
381	message_string = 'output of "' // TRIM( var ) // '"' // &
382	'requires cloud_scheme = seifert_beheng'
383	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
384	ENDIF
385	unit = '1/m3'
386
387	CASE ( 'pc', 'pr' )
388	IF ( .NOT. particle_advection ) THEN
389	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
390	'" requires a "particles_par"-NAMELIST in the ', &
391	'parameter file (PARIN)'
392	CALL message( 'init_masks', 'PA0104', 1, 2, 0, 6, 0 )
393	ENDIF
394	IF ( TRIM( var ) == 'pc' ) unit = 'number'
395	IF ( TRIM( var ) == 'pr' ) unit = 'm'
396
397	CASE ( 'q', 'thetav' )
398	IF ( .NOT. humidity ) THEN
399	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
400	'" requires humidity = .TRUE.'
401	CALL message( 'init_masks', 'PA0105', 1, 2, 0, 6, 0 )
402	ENDIF
403	IF ( TRIM( var ) == 'q' ) unit = 'kg/kg'
404	IF ( TRIM( var ) == 'thetav' ) unit = 'K'
405
406	CASE ( 'qc' )
407	IF ( .NOT. bulk_cloud_model ) THEN
408	message_string = 'output of "' // TRIM( var ) // '"' // &
409	'requires bulk_cloud_model = .TRUE.'
410	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
411	ENDIF
412	unit = 'kg/kg'
413
414	CASE ( 'ql' )
415	IF ( .NOT. ( bulk_cloud_model .OR. cloud_droplets ) ) THEN
416	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
417	'" requires bulk_cloud_model = .TRUE. or ', &
418	'cloud_droplets = .TRUE.'
419	CALL message( 'init_masks', 'PA0106', 1, 2, 0, 6, 0 )
420	ENDIF
421	unit = 'kg/kg'
422
423	CASE ( 'ql_c', 'ql_v', 'ql_vp' )
424	IF ( .NOT. cloud_droplets ) THEN
425	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
426	'" requires cloud_droplets = .TRUE.'
427	CALL message( 'init_masks', 'PA0107', 1, 2, 0, 6, 0 )
428	ENDIF
429	IF ( TRIM( var ) == 'ql_c' ) unit = 'kg/kg'
430	IF ( TRIM( var ) == 'ql_v' ) unit = 'm3'
431	IF ( TRIM( var ) == 'ql_vp' ) unit = 'none'
432
433	CASE ( 'qv' )
434	IF ( .NOT. bulk_cloud_model ) THEN
435	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
436	'" requires bulk_cloud_model = .TRUE.'
437	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
438	ENDIF
439	unit = 'kg/kg'
440
441	CASE ( 'qr' )
442	IF ( .NOT. bulk_cloud_model ) THEN
443	message_string = 'output of "' // TRIM( var ) // '" ' // &
444	'requires bulk_cloud_model = .TRUE.'
445	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
446	ELSEIF ( .NOT. microphysics_seifert ) THEN
447	message_string = 'output of "' // TRIM( var ) // '" ' // &
448	'requires cloud_scheme = seifert_beheng'
449	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
450	ENDIF
451	unit = 'kg/kg'
452
453	CASE ( 'rho_sea_water' )
454	IF ( .NOT. ocean_mode ) THEN
455	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
456	'" requires ocean mode'
457	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
458	ENDIF
459	unit = 'kg/m3'
460
461	CASE ( 's' )
462	IF ( .NOT. passive_scalar ) THEN
463	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
464	'" requires passive_scalar = .TRUE.'
465	CALL message( 'init_masks', 'PA0110', 1, 2, 0, 6, 0 )
466	ENDIF
467	unit = 'conc'
468
469	CASE ( 'sa' )
470	IF ( .NOT. ocean_mode ) THEN
471	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
472	'" requires ocean mode'
473	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
474	ENDIF
475	unit = 'psu'
476
477	CASE ( 'us', 't', 'lwp', 'pra', 'prr', 'z0', 'z0h*' )
478	WRITE ( message_string, * ) 'illegal value for data_', &
479	'output: "', TRIM( var ), '" is only allowed', &
480	'for horizontal cross section'
481	CALL message( 'init_masks', 'PA0111', 1, 2, 0, 6, 0 )
482
483	CASE ( 'p', 'theta', 'u', 'v', 'w' )
484	IF ( TRIM( var ) == 'p' ) unit = 'Pa'
485	IF ( TRIM( var ) == 'theta' ) unit = 'K'
486	IF ( TRIM( var ) == 'u' ) unit = 'm/s'
487	IF ( TRIM( var ) == 'v' ) unit = 'm/s'
488	IF ( TRIM( var ) == 'w' ) unit = 'm/s'
489	CONTINUE
490
491	CASE DEFAULT
492	!
493	!-- Allocate arrays for other modules
494	CALL module_interface_init_masks( var, unit )
495
496	IF ( unit == 'illegal' ) THEN
497	IF ( do_mask_user(mid,1) /= ' ' ) THEN
498	WRITE ( message_string, * ) 'illegal value for data_', &
499	'output_masks or data_output_masks_user: "', &
500	TRIM( do_mask(mid,i) ), '"'
501	CALL message( 'init_masks', 'PA0018', 1, 2, 0, 6, 0 )
502	ELSE
503	WRITE ( message_string, * ) 'illegal value for data_', &
504	' output_masks : "', TRIM( do_mask(mid,i) ), '"'
505	CALL message( 'init_masks', 'PA0330', 1, 2, 0, 6, 0 )
506	ENDIF
507	ENDIF
508
509	END SELECT
510	!
511	!-- Set the internal steering parameters appropriately
512	domask_no(mid,j) = domask_no(mid,j) + 1
513	domask(mid,j,domask_no(mid,j)) = do_mask(mid,i)
514	domask_unit(mid,j,domask_no(mid,j)) = unit
515
516	IF ( j == 1 ) THEN
517	!
518	!-- Check, if variable is already subject to averaging
519	found = .FALSE.
520	DO k = 1, doav_n
521	IF ( TRIM( doav(k) ) == TRIM( var ) ) found = .TRUE.
522	ENDDO
523
524	IF ( .NOT. found ) THEN
525	doav_n = doav_n + 1
526	doav(doav_n) = var
527	ENDIF
528	ENDIF
529
530	i = i + 1
531
532	ENDDO ! do_mask(mid,i)
533	ENDDO ! mid
534
535
536	!
537	!-- Determine mask locations for each mask
538	DO mid = 1, masks
539	!
540	!-- Set local masks for each subdomain along all three dimensions
541	CALL set_mask_locations( 1, dx, 'dx', nx, 'nx', nxl, nxr )
542	CALL set_mask_locations( 2, dy, 'dy', ny, 'ny', nys, nyn )
543	IF ( .NOT. mask_surface(mid) ) THEN
544	CALL set_mask_locations( 3, dz(1), 'dz', nz, 'nz', nzb, nzt )
545	ELSE
546	!
547	!-- Set vertical mask locations and size in case of terrain-following
548	!-- output
549	count = 0
550	DO WHILE ( mask_k_over_surface(mid, count+1) >= 0 )
551	m = mask_k_over_surface(mid, count+1)
552	IF ( m > nz+1 ) THEN
553	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
554	m,' in mask ',mid,' along dimension ', 3, &
555	' exceeds (nz+1) = ',nz+1
556	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
557	ENDIF
558	count = count + 1
559	mask_k(mid,count) = mask_k_over_surface(mid, count)
560	IF ( count == mask_xyz_dimension ) EXIT
561	ENDDO
562	mask_start_l(mid,3) = 1
563	mask_size(mid,3) = count
564	mask_size_l(mid,3) = count
565	ENDIF
566	!
567	!-- Set global masks along all three dimensions (required by
568	!-- define_netcdf_header).
569	#if defined( __parallel )
570	!
571	!-- PE0 receives partial arrays from all processors of the respective mask
572	!-- and outputs them. Here a barrier has to be set, because otherwise
573	!-- "-MPI- FATAL: Remote protocol queue full" may occur.
574
575	CALL MPI_BARRIER( comm2d, ierr )
576
577	IF ( myid == 0 ) THEN
578	!
579	!-- Local arrays can be relocated directly.
580	mask_i_global(mid,mask_start_l(mid,1): &
581	mask_start_l(mid,1)+mask_size_l(mid,1)-1) = &
582	mask_i(mid,:mask_size_l(mid,1))
583	mask_j_global(mid,mask_start_l(mid,2): &
584	mask_start_l(mid,2)+mask_size_l(mid,2)-1) = &
585	mask_j(mid,:mask_size_l(mid,2))
586	mask_k_global(mid,mask_start_l(mid,3): &
587	mask_start_l(mid,3)+mask_size_l(mid,3)-1) = &
588	mask_k(mid,:mask_size_l(mid,3))
589	!
590	!-- Receive data from all other PEs.
591	DO n = 1, numprocs-1
592	!
593	!-- Receive index limits first, then arrays.
594	!-- Index limits are received in arbitrary order from the PEs.
595	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, &
596	comm2d, status, ierr )
597	!
598	!-- Not all PEs have data for the mask.
599	IF ( ind(1) /= -9999 ) THEN
600	sender = status(MPI_SOURCE)
601	CALL MPI_RECV( tmp_array(ind(1)), ind(2)-ind(1)+1, &
602	MPI_INTEGER, sender, 1, comm2d, status, ierr )
603	mask_i_global(mid,ind(1):ind(2)) = tmp_array(ind(1):ind(2))
604	CALL MPI_RECV( tmp_array(ind(3)), ind(4)-ind(3)+1, &
605	MPI_INTEGER, sender, 2, comm2d, status, ierr )
606	mask_j_global(mid,ind(3):ind(4)) = tmp_array(ind(3):ind(4))
607	CALL MPI_RECV( tmp_array(ind(5)), ind(6)-ind(5)+1, &
608	MPI_INTEGER, sender, 3, comm2d, status, ierr )
609	mask_k_global(mid,ind(5):ind(6)) = tmp_array(ind(5):ind(6))
610	ENDIF
611	ENDDO
612
613	ELSE
614	!
615	!-- If at least part of the mask resides on the PE, send the index limits
616	!-- for the target array, otherwise send -9999 to PE0.
617	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
618	mask_size_l(mid,3) > 0 ) THEN
619	ind(1) = mask_start_l(mid,1)
620	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
621	ind(3) = mask_start_l(mid,2)
622	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
623	ind(5) = mask_start_l(mid,3)
624	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
625	ELSE
626	ind(1) = -9999; ind(2) = -9999
627	ind(3) = -9999; ind(4) = -9999
628	ind(5) = -9999; ind(6) = -9999
629	ENDIF
630	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
631	!
632	!-- If applicable, send data to PE0.
633	IF ( ind(1) /= -9999 ) THEN
634	tmp_array(:mask_size_l(mid,1)) = mask_i(mid,:mask_size_l(mid,1))
635	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,1), &
636	MPI_INTEGER, 0, 1, comm2d, ierr )
637	tmp_array(:mask_size_l(mid,2)) = mask_j(mid,:mask_size_l(mid,2))
638	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,2), &
639	MPI_INTEGER, 0, 2, comm2d, ierr )
640	tmp_array(:mask_size_l(mid,3)) = mask_k(mid,:mask_size_l(mid,3))
641	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,3), &
642	MPI_INTEGER, 0, 3, comm2d, ierr )
643	ENDIF
644	ENDIF
645	!
646	!-- A barrier has to be set, because otherwise some PEs may proceed too fast
647	!-- so that PE0 may receive wrong data on tag 0.
648	CALL MPI_BARRIER( comm2d, ierr )
649
650	IF ( netcdf_data_format > 4 ) THEN
651
652	CALL MPI_BCAST( mask_i_global(mid,:), nx+2, MPI_INTEGER, 0, comm2d, &
653	ierr )
654	CALL MPI_BCAST( mask_j_global(mid,:), ny+2, MPI_INTEGER, 0, comm2d, &
655	ierr )
656	CALL MPI_BCAST( mask_k_global(mid,:), nz+2, MPI_INTEGER, 0, comm2d, &
657	ierr )
658
659	ENDIF
660
661	#else
662	!
663	!-- Local arrays can be relocated directly.
664	mask_i_global(mid,:) = mask_i(mid,:)
665	mask_j_global(mid,:) = mask_j(mid,:)
666	mask_k_global(mid,:) = mask_k(mid,:)
667	#endif
668	ENDDO ! mid
669
670	DEALLOCATE( tmp_array )
671	!
672	!-- Internal mask arrays cannot be deallocated on PE 0 because they are
673	!-- required for header output on PE 0.
674	IF ( myid /= 0 ) DEALLOCATE( mask, mask_loop )
675
676	CONTAINS
677
678	!------------------------------------------------------------------------------!
679	! Description:
680	! ------------
681	!> Set local mask for each subdomain along 'dim' direction.
682	!------------------------------------------------------------------------------!
683	SUBROUTINE set_mask_locations( dim, dxyz, dxyz_string, nxyz, nxyz_string, &
684	lb, ub )
685
686	IMPLICIT NONE
687
688	CHARACTER (LEN=2) :: dxyz_string !<
689	CHARACTER (LEN=2) :: nxyz_string !<
690
691	INTEGER(iwp) :: count !<
692	INTEGER(iwp) :: count_l !<
693	INTEGER(iwp) :: dim !<
694	INTEGER(iwp) :: m !<
695	INTEGER(iwp) :: loop_begin !<
696	INTEGER(iwp) :: loop_end !<
697	INTEGER(iwp) :: loop_stride !<
698	INTEGER(iwp) :: lb !<
699	INTEGER(iwp) :: nxyz !<
700	INTEGER(iwp) :: ub !<
701
702	REAL(wp) :: dxyz !<
703	REAL(wp) :: ddxyz !<
704	REAL(wp) :: tmp1 !<
705	REAL(wp) :: tmp2 !<
706
707	count = 0; count_l = 0
708	ddxyz = 1.0_wp / dxyz
709	tmp1 = 0.0_wp
710	tmp2 = 0.0_wp
711
712	IF ( mask(mid,dim,1) >= 0.0_wp ) THEN
713	!
714	!-- use predefined mask_* array
715	DO WHILE ( mask(mid,dim,count+1) >= 0.0_wp )
716	count = count + 1
717	IF ( dim == 1 .OR. dim == 2 ) THEN
718	m = NINT( mask(mid,dim,count) * mask_scale(dim) * ddxyz - 0.5_wp )
719	IF ( m < 0 ) m = 0 ! avoid negative values
720	ELSEIF ( dim == 3 ) THEN
721	ind_array = &
722	MINLOC( ABS( mask(mid,dim,count) * mask_scale(dim) - zu ) )
723	m = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
724	ENDIF
725	IF ( m > (nxyz+1) ) THEN
726	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
727	m,' in mask ',mid,' along dimension ',dim, &
728	' exceeds (',nxyz_string,'+1) = ',nxyz+1
729	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
730	ENDIF
731	IF ( ( m >= lb .AND. m <= ub ) .OR. &
732	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
733	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
734	count_l = count_l + 1
735	IF ( dim == 1 ) THEN
736	mask_i(mid,count_l) = m
737	ELSEIF ( dim == 2 ) THEN
738	mask_j(mid,count_l) = m
739	ELSEIF ( dim == 3 ) THEN
740	mask_k(mid,count_l) = m
741	ENDIF
742	ENDIF
743	IF ( count == mask_xyz_dimension ) EXIT
744	ENDDO
745	mask_size(mid,dim) = count
746	mask_size_l(mid,dim) = count_l
747
748	ELSE
749	!
750	!-- use predefined mask_loop_* array, or use the default (all grid points
751	!-- along this direction)
752	IF ( mask_loop(mid,dim,1) < 0.0_wp ) THEN
753	tmp1 = mask_loop(mid,dim,1)
754	mask_loop(mid,dim,1) = zw(nzb) ! lowest level (default)
755	ENDIF
756	IF ( dim == 1 .OR. dim == 2 ) THEN
757	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
758	tmp2 = mask_loop(mid,dim,2)
759	mask_loop(mid,dim,2) = nxyz*dxyz / mask_scale(dim) ! (default)
760	ENDIF
761	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
762	> (nxyz+1) * dxyz / mask_scale(dim) ) THEN
763	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),5A,I1,A,F9.3)' ) &
764	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
765	' and/or mask_loop(',mid,',',dim,',2)=', &
766	mask_loop(mid,dim,2),' exceed (', &
767	nxyz_string,'+1)*',dxyz_string,'/mask_scale(',dim,')=', &
768	(nxyz+1)*dxyz/mask_scale(dim)
769	CALL message( 'init_masks', 'PA0332', 1, 2, 0, 6, 0 )
770	ENDIF
771	loop_begin = NINT( mask_loop(mid,dim,1) * mask_scale(dim) &
772	* ddxyz - 0.5_wp )
773	loop_end = NINT( mask_loop(mid,dim,2) * mask_scale(dim) &
774	* ddxyz - 0.5_wp )
775	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) &
776	* ddxyz )
777	IF ( loop_begin == -1 ) loop_begin = 0 ! avoid negative values
778	ELSEIF ( dim == 3 ) THEN
779	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
780	tmp2 = mask_loop(mid,dim,2)
781	mask_loop(mid,dim,2) = zu(nz+1) / mask_scale(dim) ! (default)
782	ENDIF
783	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
784	> zu(nz+1) / mask_scale(dim) ) THEN
785	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),A,I1,A,F9.3)' ) &
786	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
787	' and/or mask_loop(',mid,',',dim,',2)=', &
788	mask_loop(mid,dim,2),' exceed zu(nz+1)/mask_scale(',dim, &
789	')=',zu(nz+1)/mask_scale(dim)
790	CALL message( 'init_masks', 'PA0333', 1, 2, 0, 6, 0 )
791	ENDIF
792	ind_array = &
793	MINLOC( ABS( mask_loop(mid,dim,1) * mask_scale(dim) - zu ) )
794	loop_begin = &
795	ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
796	ind_array = &
797	MINLOC( ABS( mask_loop(mid,dim,2) * mask_scale(dim) - zu ) )
798	loop_end = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
799	!
800	!-- The following line assumes a constant vertical grid spacing within
801	!-- the vertical mask range; it fails for vertical grid stretching.
802	!-- Maybe revise later. Issue warning but continue execution. ABS(...)
803	!-- within the IF statement is necessary because the default value of
804	!-- dz_stretch_level_start is -9999999.9_wp.
805	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) * ddxyz )
806
807	IF ( mask_loop(mid,dim,2) * mask_scale(dim) > &
808	ABS( dz_stretch_level_start(1) ) ) THEN
809	WRITE ( message_string, '(A,I3,A,I1,A,F9.3,A,F8.2,3A)' ) &
810	'mask_loop(',mid,',',dim,',2)=', mask_loop(mid,dim,2), &
811	' exceeds dz_stretch_level=',dz_stretch_level_start(1), &
812	'.&Vertical mask locations will not ', &
813	'match the desired heights within the stretching ', &
814	'region.'
815	CALL message( 'init_masks', 'PA0334', 0, 1, 0, 6, 0 )
816	ENDIF
817
818	ENDIF
819	!
820	!-- If necessary, reset mask_loop(mid,dim,1) and mask_loop(mid,dim,2).
821	IF ( tmp1 < 0.0_wp ) mask_loop(mid,dim,1) = tmp1
822	IF ( tmp2 < 0.0_wp ) mask_loop(mid,dim,2) = tmp2
823	!
824	!-- The default stride +/-1 (every grid point) applies if
825	!-- mask_loop(mid,dim,3) is not specified (its default is zero).
826	IF ( loop_stride == 0 ) THEN
827	IF ( loop_end >= loop_begin ) THEN
828	loop_stride = 1
829	ELSE
830	loop_stride = -1
831	ENDIF
832	ENDIF
833	DO m = loop_begin, loop_end, loop_stride
834	count = count + 1
835	IF ( ( m >= lb .AND. m <= ub ) .OR. &
836	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
837	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
838	count_l = count_l + 1
839	IF ( dim == 1 ) THEN
840	mask_i(mid,count_l) = m
841	ELSEIF ( dim == 2 ) THEN
842	mask_j(mid,count_l) = m
843	ELSEIF ( dim == 3 ) THEN
844	mask_k(mid,count_l) = m
845	ENDIF
846	ENDIF
847	ENDDO
848	mask_size(mid,dim) = count
849	mask_size_l(mid,dim) = count_l
850
851	ENDIF
852
853	END SUBROUTINE set_mask_locations
854
855	END SUBROUTINE init_masks

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