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source: palm/trunk/SOURCE/init_masks.f90 @ 4083

Last change on this file since 4083 was 4069, checked in by Giersch, 5 years ago
Bugfix for masked output, compiler warning removed, test case for wind turbine model revised
Property svn:keywords set to `Id`
File size: 34.4 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 1997-2019 Leibniz Universitaet Hannover
18	!------------------------------------------------------------------------------!
19	!
20	! Current revisions:
21	! -----------------
22	!
23	!
24	! Former revisions:
25	! -----------------
26	! $Id: init_masks.f90 4069 2019-07-01 14:05:51Z gronemeier $
27	! Masked output running index mid has been introduced as a local variable to
28	! avoid runtime error (Loop variable has been modified) in time_integration
29	!
30	! 3766 2019-02-26 16:23:41Z raasch
31	! unused variables removed
32	!
33	! 3687 2019-01-22 10:42:06Z knoop
34	! unused variables removed
35	!
36	! 3655 2019-01-07 16:51:22Z knoop
37	! Move the control parameter "salsa" from salsa_mod to control_parameters
38	! (M. Kurppa)
39	!
40	! 3582 2018-11-29 19:16:36Z suehring
41	! add variable description
42	!
43	! 3512 2018-11-09 18:09:51Z gronemeier
44	! Bugfix: do not output ghost points if mask_x/y_loop is not specified
45	!
46	! 3467 2018-10-30 19:05:21Z suehring
47	! Implementation of a new aerosol module salsa.
48	!
49	! 3435 2018-10-26 18:25:44Z gronemeier
50	! Add checks for chemistry and radiation model
51	! Set indices for terrain-following masked output
52	!
53	! 3421 2018-10-24 18:39:32Z gronemeier
54	! Renamed output variables
55	!
56	! 3419 2018-10-24 17:27:31Z gronemeier
57	! ocean renamed ocean_mode
58	!
59	! 3274 2018-09-24 15:42:55Z knoop
60	! Modularization of all bulk cloud physics code components
61	!
62	! 3065 2018-06-12 07:03:02Z Giersch
63	! dz_stretch_level was replaced by dz_stretch_level_start
64	!
65	! 3049 2018-05-29 13:52:36Z Giersch
66	! Error messages revised
67	!
68	! 3045 2018-05-28 07:55:41Z Giersch
69	! Error messages revised
70	!
71	! 2718 2018-01-02 08:49:38Z maronga
72	! Corrected "Former revisions" section
73	!
74	! 2696 2017-12-14 17:12:51Z kanani
75	! Change in file header (GPL part)
76	!
77	! 2344 2017-08-09 11:00:34Z raasch
78	! explicit setting of initial values for array domask required due to a bug
79	! in the Cray compiler (appears only if option -eD is used)
80	!
81	! 2301 2017-06-29 16:41:21Z gronemeier
82	! Bugfix: set variable name length to global value
83	!
84	!
85	! Implementation of new microphysic scheme: cloud_scheme = 'morrison'
86	! includes two more prognostic equations for cloud drop concentration (nc)
87	! and cloud water content (qc).
88	!
89	! 2271 2017-06-09 12:34:55Z sward
90	! Changed error message
91	!
92	! 2101 2017-01-05 16:42:31Z suehring
93	!
94	! 2031 2016-10-21 15:11:58Z knoop
95	! renamed variable rho to rho_ocean
96	!
97	! 2000 2016-08-20 18:09:15Z knoop
98	! Forced header and separation lines into 80 columns
99	!
100	! 1822 2016-04-07 07:49:42Z hoffmann
101	! icloud_scheme replaced by microphysics_*
102	!
103	! 1804 2016-04-05 16:30:18Z maronga
104	! Removed code for parameter file check (__check)
105	!
106	! 1783 2016-03-06 18:36:17Z raasch
107	! netcdf module name changed + related changes
108	!
109	! 1682 2015-10-07 23:56:08Z knoop
110	! Code annotations made doxygen readable
111	!
112	! 1438 2014-07-22 14:14:06Z heinze
113	! +nr, qc, qr
114	!
115	! 1414 2014-05-31 11:19:48Z gronemeier
116	! Bugfix: first and last grid points as they appear in 3D volume data can now
117	! be included to masked data output
118	!
119	! 1353 2014-04-08 15:21:23Z heinze
120	! REAL constants provided with KIND-attribute
121	!
122	! 1324 2014-03-21 09:13:16Z suehring
123	! Bugfix: ONLY statement for module netcdf_control removed
124	!
125	! 1320 2014-03-20 08:40:49Z raasch
126	! ONLY-attribute added to USE-statements,
127	! kind-parameters added to all INTEGER and REAL declaration statements,
128	! kinds are defined in new module kinds,
129	! revision history before 2012 removed,
130	! comment fields (!:) to be used for variable explanations added to
131	! all variable declaration statements
132	!
133	! 1186 2013-06-18 06:22:52Z raasch
134	! bugfix: 0.0 replaced by zu(nzb) as the lowest default height level for masks,
135	! because a zero value does not work in case of ocean runs
136	!
137	! 1036 2012-10-22 13:43:42Z raasch
138	! code put under GPL (PALM 3.9)
139	!
140	! 1032 2012-10-21 13:03:21Z letzel
141	! mask locations determined based on scalar positions
142	!
143	! 1031 2012-10-19 14:35:30Z raasch
144	! netCDF4 without parallel file support implemented
145	!
146	! 996 2012-09-07 10:41:47Z raasch
147	! little reformatting
148	!
149	! 978 2012-08-09 08:28:32Z fricke
150	! +z0h*
151	!
152	! 809 2012-01-30 13:32:58Z maronga
153	! Bugfix: replaced .AND. and .NOT. with && and ! in the preprocessor directives
154	!
155	! 807 2012-01-25 11:53:51Z maronga
156	! New cpp directive "__check" implemented which is used by check_namelist_files
157	!
158	! 410 2009-12-04 17:05:40Z letzel
159	! Initial revision
160	!
161	!
162	! Description:
163	! ------------
164	!> Initialize masked data output
165	!------------------------------------------------------------------------------!
166	SUBROUTINE init_masks
167
168	USE arrays_3d, &
169	ONLY: zu, zw
170
171	USE bulk_cloud_model_mod, &
172	ONLY: bulk_cloud_model, microphysics_morrison, microphysics_seifert
173
174	USE control_parameters, &
175	ONLY: constant_diffusion, cloud_droplets, &
176	data_output_masks, data_output_masks_user, &
177	doav, doav_n, domask, domask_no, dz, dz_stretch_level_start, &
178	humidity, mask, masks, mask_scale, mask_i, &
179	mask_i_global, mask_j, mask_j_global, mask_k, mask_k_global, &
180	mask_k_over_surface, &
181	mask_loop, mask_size, mask_size_l, mask_start_l, &
182	mask_surface, mask_x, &
183	mask_x_loop, mask_xyz_dimension, mask_y, mask_y_loop, mask_z, &
184	mask_z_loop, max_masks, message_string, &
185	passive_scalar, ocean_mode, varnamelength
186
187	USE grid_variables, &
188	ONLY: dx, dy
189
190	USE indices, &
191	ONLY: nx, nxl, nxr, ny, nyn, nys, nz, nzb, nzt
192
193	USE kinds
194
195	USE module_interface, &
196	ONLY: module_interface_init_masks
197
198	USE netcdf_interface, &
199	ONLY: domask_unit, netcdf_data_format
200
201	USE particle_attributes, &
202	ONLY: particle_advection
203
204	USE pegrid
205
206	IMPLICIT NONE
207
208	CHARACTER (LEN=varnamelength) :: var !< contains variable name
209	CHARACTER (LEN=7) :: unit !< contains unit of variable
210
211	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask !< list of output variables
212	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask_user !< list of user-specified output variables
213
214	INTEGER(iwp) :: count !< counting masking indices along a dimension
215	INTEGER(iwp) :: i !< loop index
216	INTEGER(iwp) :: ilen !< length of string saved in 'do_mask'
217	INTEGER(iwp) :: ind(6) !< index limits (lower/upper bounds) of output array
218	INTEGER(iwp) :: ind_array(1) !< array index
219	INTEGER(iwp) :: j !< loop index
220	INTEGER(iwp) :: k !< loop index
221	INTEGER(iwp) :: m !< mask index
222	INTEGER(iwp) :: mid !< masked output running index
223	INTEGER(iwp) :: n !< loop index
224	INTEGER(iwp) :: sender !< PE id of sending PE
225
226	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: tmp_array !< temporary 1D array
227
228	LOGICAL :: found !< true if variable is found
229
230	!
231	!-- Initial values are explicitly set here due to a bug in the Cray compiler
232	!-- in case of assignments of initial values in declaration statements for
233	!-- arrays with more than 9999 elements (appears with -eD only)
234	domask = ' '
235
236	!
237	!-- Allocation and initialization
238	ALLOCATE( tmp_array( MAX(nx,ny,nz)+2 ) )
239
240	ALLOCATE( mask_i(max_masks,nxr-nxl+2), &
241	mask_j(max_masks,nyn-nys+2), &
242	mask_k(max_masks,nzt-nzb+2) )
243	!
244	!-- internal mask arrays ("mask,dimension,selection")
245	ALLOCATE( mask(max_masks,3,mask_xyz_dimension), &
246	mask_loop(max_masks,3,3) )
247
248	!
249	!-- Parallel mask output not yet supported. In check_parameters data format
250	!-- is restricted and is switched back to non-parallel output. Therefore the
251	!-- following error can not occur at the moment.
252	IF ( netcdf_data_format > 4 ) THEN
253	message_string = 'netCDF file formats '// &
254	'5 and 6 (with parallel I/O support)'// &
255	' are currently not supported.'
256	CALL message( 'init_masks', 'PA0328', 1, 2, 0, 6, 0 )
257	ENDIF
258
259	!
260	!-- Store data output parameters for masked data output in few shared arrays
261	DO mid = 1, masks
262
263	do_mask (mid,:) = data_output_masks(mid,:)
264	do_mask_user(mid,:) = data_output_masks_user(mid,:)
265	mask (mid,1,:) = mask_x(mid,:)
266	mask (mid,2,:) = mask_y(mid,:)
267	mask (mid,3,:) = mask_z(mid,:)
268	!
269	!-- Flag a mask as terrain following
270	IF ( mask_k_over_surface(mid,1) /= -1_iwp ) THEN
271	mask_surface(mid) = .TRUE.
272	ENDIF
273
274	IF ( mask_x_loop(mid,1) == -1.0_wp .AND. mask_x_loop(mid,2) == -1.0_wp&
275	.AND. mask_x_loop(mid,3) == -1.0_wp ) THEN
276	mask_loop(mid,1,1:2) = -1.0_wp
277	mask_loop(mid,1,3) = 0.0_wp
278	ELSE
279	mask_loop(mid,1,:) = mask_x_loop(mid,:)
280	ENDIF
281	IF ( mask_y_loop(mid,1) == -1.0_wp .AND. mask_y_loop(mid,2) == -1.0_wp&
282	.AND. mask_y_loop(mid,3) == -1.0_wp ) THEN
283	mask_loop(mid,2,1:2) = -1.0_wp
284	mask_loop(mid,2,3) = 0.0_wp
285	ELSE
286	mask_loop(mid,2,:) = mask_y_loop(mid,:)
287	ENDIF
288	IF ( mask_z_loop(mid,1) == -1.0_wp .AND. mask_z_loop(mid,2) == -1.0_wp&
289	.AND. mask_z_loop(mid,3) == -1.0_wp ) THEN
290	mask_loop(mid,3,1:2) = -1.0_wp
291	mask_loop(mid,3,3) = 0.0_wp
292	ELSE
293	mask_loop(mid,3,:) = mask_z_loop(mid,:)
294	ENDIF
295
296	ENDDO
297
298	mask_i = -1; mask_j = -1; mask_k = -1
299
300	!
301	!-- Global arrays are required by define_netcdf_header.
302	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
303	ALLOCATE( mask_i_global(max_masks,nx+2), &
304	mask_j_global(max_masks,ny+2), &
305	mask_k_global(max_masks,nz+2) )
306	mask_i_global = -1; mask_j_global = -1; mask_k_global = -1
307	ENDIF
308
309	!
310	!-- Determine variable names for each mask
311	DO mid = 1, masks
312	!
313	!-- Append user-defined data output variables to the standard data output
314	IF ( do_mask_user(mid,1) /= ' ' ) THEN
315	i = 1
316	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
317	i = i + 1
318	ENDDO
319	j = 1
320	DO WHILE ( do_mask_user(mid,j) /= ' ' .AND. j <= 100 )
321	IF ( i > 100 ) THEN
322	WRITE ( message_string, * ) 'number of output quantitities ', &
323	'given by data_output_mask and data_output_mask_user ', &
324	'exceeds the limit of 100'
325	CALL message( 'init_masks', 'PA0329', 1, 2, 0, 6, 0 )
326	ENDIF
327	do_mask(mid,i) = do_mask_user(mid,j)
328	i = i + 1
329	j = j + 1
330	ENDDO
331	ENDIF
332
333	!
334	!-- Check and set steering parameters for mask data output and averaging
335	i = 1
336	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
337	!
338	!-- Check for data averaging
339	ilen = LEN_TRIM( do_mask(mid,i) )
340	j = 0 ! no data averaging
341	IF ( ilen > 3 ) THEN
342	IF ( do_mask(mid,i)(ilen-2:ilen) == '_av' ) THEN
343	j = 1 ! data averaging
344	do_mask(mid,i) = do_mask(mid,i)(1:ilen-3)
345	ENDIF
346	ENDIF
347	var = TRIM( do_mask(mid,i) )
348	!
349	!-- Check for allowed value and set units
350	SELECT CASE ( TRIM( var ) )
351
352	CASE ( 'e' )
353	IF ( constant_diffusion ) THEN
354	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
355	'" requires constant_diffusion = .FALSE.'
356	CALL message( 'init_masks', 'PA0103', 1, 2, 0, 6, 0 )
357	ENDIF
358	unit = 'm2/s2'
359
360	CASE ( 'thetal' )
361	IF ( .NOT. bulk_cloud_model ) THEN
362	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
363	'" requires bulk_cloud_model = .TRUE.'
364	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
365	ENDIF
366	unit = 'K'
367
368	CASE ( 'nc' )
369	IF ( .NOT. bulk_cloud_model ) THEN
370	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
371	'" requires bulk_cloud_model = .TRUE.'
372	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
373	ELSEIF ( .NOT. microphysics_morrison ) THEN
374	message_string = 'output of "' // TRIM( var ) // '" ' // &
375	'requires = morrison'
376	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
377	ENDIF
378	unit = '1/m3'
379
380	CASE ( 'nr' )
381	IF ( .NOT. bulk_cloud_model ) THEN
382	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
383	'" requires bulk_cloud_model = .TRUE.'
384	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
385	ELSEIF ( .NOT. microphysics_seifert ) THEN
386	message_string = 'output of "' // TRIM( var ) // '"' // &
387	'requires cloud_scheme = seifert_beheng'
388	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
389	ENDIF
390	unit = '1/m3'
391
392	CASE ( 'pc', 'pr' )
393	IF ( .NOT. particle_advection ) THEN
394	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
395	'" requires a "particles_par"-NAMELIST in the ', &
396	'parameter file (PARIN)'
397	CALL message( 'init_masks', 'PA0104', 1, 2, 0, 6, 0 )
398	ENDIF
399	IF ( TRIM( var ) == 'pc' ) unit = 'number'
400	IF ( TRIM( var ) == 'pr' ) unit = 'm'
401
402	CASE ( 'q', 'thetav' )
403	IF ( .NOT. humidity ) THEN
404	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
405	'" requires humidity = .TRUE.'
406	CALL message( 'init_masks', 'PA0105', 1, 2, 0, 6, 0 )
407	ENDIF
408	IF ( TRIM( var ) == 'q' ) unit = 'kg/kg'
409	IF ( TRIM( var ) == 'thetav' ) unit = 'K'
410
411	CASE ( 'qc' )
412	IF ( .NOT. bulk_cloud_model ) THEN
413	message_string = 'output of "' // TRIM( var ) // '"' // &
414	'requires bulk_cloud_model = .TRUE.'
415	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
416	ENDIF
417	unit = 'kg/kg'
418
419	CASE ( 'ql' )
420	IF ( .NOT. ( bulk_cloud_model .OR. cloud_droplets ) ) THEN
421	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
422	'" requires bulk_cloud_model = .TRUE. or ', &
423	'cloud_droplets = .TRUE.'
424	CALL message( 'init_masks', 'PA0106', 1, 2, 0, 6, 0 )
425	ENDIF
426	unit = 'kg/kg'
427
428	CASE ( 'ql_c', 'ql_v', 'ql_vp' )
429	IF ( .NOT. cloud_droplets ) THEN
430	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
431	'" requires cloud_droplets = .TRUE.'
432	CALL message( 'init_masks', 'PA0107', 1, 2, 0, 6, 0 )
433	ENDIF
434	IF ( TRIM( var ) == 'ql_c' ) unit = 'kg/kg'
435	IF ( TRIM( var ) == 'ql_v' ) unit = 'm3'
436	IF ( TRIM( var ) == 'ql_vp' ) unit = 'none'
437
438	CASE ( 'qv' )
439	IF ( .NOT. bulk_cloud_model ) THEN
440	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
441	'" requires bulk_cloud_model = .TRUE.'
442	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
443	ENDIF
444	unit = 'kg/kg'
445
446	CASE ( 'qr' )
447	IF ( .NOT. bulk_cloud_model ) THEN
448	message_string = 'output of "' // TRIM( var ) // '" ' // &
449	'requires bulk_cloud_model = .TRUE.'
450	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
451	ELSEIF ( .NOT. microphysics_seifert ) THEN
452	message_string = 'output of "' // TRIM( var ) // '" ' // &
453	'requires cloud_scheme = seifert_beheng'
454	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
455	ENDIF
456	unit = 'kg/kg'
457
458	CASE ( 'rho_sea_water' )
459	IF ( .NOT. ocean_mode ) THEN
460	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
461	'" requires ocean mode'
462	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
463	ENDIF
464	unit = 'kg/m3'
465
466	CASE ( 's' )
467	IF ( .NOT. passive_scalar ) THEN
468	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
469	'" requires passive_scalar = .TRUE.'
470	CALL message( 'init_masks', 'PA0110', 1, 2, 0, 6, 0 )
471	ENDIF
472	unit = 'conc'
473
474	CASE ( 'sa' )
475	IF ( .NOT. ocean_mode ) THEN
476	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
477	'" requires ocean mode'
478	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
479	ENDIF
480	unit = 'psu'
481
482	CASE ( 'us', 't', 'lwp', 'pra', 'prr', 'z0', 'z0h*' )
483	WRITE ( message_string, * ) 'illegal value for data_', &
484	'output: "', TRIM( var ), '" is only allowed', &
485	'for horizontal cross section'
486	CALL message( 'init_masks', 'PA0111', 1, 2, 0, 6, 0 )
487
488	CASE ( 'p', 'theta', 'u', 'v', 'w' )
489	IF ( TRIM( var ) == 'p' ) unit = 'Pa'
490	IF ( TRIM( var ) == 'theta' ) unit = 'K'
491	IF ( TRIM( var ) == 'u' ) unit = 'm/s'
492	IF ( TRIM( var ) == 'v' ) unit = 'm/s'
493	IF ( TRIM( var ) == 'w' ) unit = 'm/s'
494	CONTINUE
495
496	CASE DEFAULT
497	!
498	!-- Allocate arrays for other modules
499	CALL module_interface_init_masks( var, unit )
500
501	IF ( unit == 'illegal' ) THEN
502	IF ( do_mask_user(mid,1) /= ' ' ) THEN
503	WRITE ( message_string, * ) 'illegal value for data_', &
504	'output_masks or data_output_masks_user: "', &
505	TRIM( do_mask(mid,i) ), '"'
506	CALL message( 'init_masks', 'PA0018', 1, 2, 0, 6, 0 )
507	ELSE
508	WRITE ( message_string, * ) 'illegal value for data_', &
509	' output_masks : "', TRIM( do_mask(mid,i) ), '"'
510	CALL message( 'init_masks', 'PA0330', 1, 2, 0, 6, 0 )
511	ENDIF
512	ENDIF
513
514	END SELECT
515	!
516	!-- Set the internal steering parameters appropriately
517	domask_no(mid,j) = domask_no(mid,j) + 1
518	domask(mid,j,domask_no(mid,j)) = do_mask(mid,i)
519	domask_unit(mid,j,domask_no(mid,j)) = unit
520
521	IF ( j == 1 ) THEN
522	!
523	!-- Check, if variable is already subject to averaging
524	found = .FALSE.
525	DO k = 1, doav_n
526	IF ( TRIM( doav(k) ) == TRIM( var ) ) found = .TRUE.
527	ENDDO
528
529	IF ( .NOT. found ) THEN
530	doav_n = doav_n + 1
531	doav(doav_n) = var
532	ENDIF
533	ENDIF
534
535	i = i + 1
536
537	ENDDO ! do_mask(mid,i)
538	ENDDO ! mid
539
540
541	!
542	!-- Determine mask locations for each mask
543	DO mid = 1, masks
544	!
545	!-- Set local masks for each subdomain along all three dimensions
546	CALL set_mask_locations( 1, dx, 'dx', nx, 'nx', nxl, nxr )
547	CALL set_mask_locations( 2, dy, 'dy', ny, 'ny', nys, nyn )
548	IF ( .NOT. mask_surface(mid) ) THEN
549	CALL set_mask_locations( 3, dz(1), 'dz', nz, 'nz', nzb, nzt )
550	ELSE
551	!
552	!-- Set vertical mask locations and size in case of terrain-following
553	!-- output
554	count = 0
555	DO WHILE ( mask_k_over_surface(mid, count+1) >= 0 )
556	m = mask_k_over_surface(mid, count+1)
557	IF ( m > nz+1 ) THEN
558	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
559	m,' in mask ',mid,' along dimension ', 3, &
560	' exceeds (nz+1) = ',nz+1
561	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
562	ENDIF
563	count = count + 1
564	mask_k(mid,count) = mask_k_over_surface(mid, count)
565	IF ( count == mask_xyz_dimension ) EXIT
566	ENDDO
567	mask_start_l(mid,3) = 1
568	mask_size(mid,3) = count
569	mask_size_l(mid,3) = count
570	ENDIF
571	!
572	!-- Set global masks along all three dimensions (required by
573	!-- define_netcdf_header).
574	#if defined( __parallel )
575	!
576	!-- PE0 receives partial arrays from all processors of the respective mask
577	!-- and outputs them. Here a barrier has to be set, because otherwise
578	!-- "-MPI- FATAL: Remote protocol queue full" may occur.
579
580	CALL MPI_BARRIER( comm2d, ierr )
581
582	IF ( myid == 0 ) THEN
583	!
584	!-- Local arrays can be relocated directly.
585	mask_i_global(mid,mask_start_l(mid,1): &
586	mask_start_l(mid,1)+mask_size_l(mid,1)-1) = &
587	mask_i(mid,:mask_size_l(mid,1))
588	mask_j_global(mid,mask_start_l(mid,2): &
589	mask_start_l(mid,2)+mask_size_l(mid,2)-1) = &
590	mask_j(mid,:mask_size_l(mid,2))
591	mask_k_global(mid,mask_start_l(mid,3): &
592	mask_start_l(mid,3)+mask_size_l(mid,3)-1) = &
593	mask_k(mid,:mask_size_l(mid,3))
594	!
595	!-- Receive data from all other PEs.
596	DO n = 1, numprocs-1
597	!
598	!-- Receive index limits first, then arrays.
599	!-- Index limits are received in arbitrary order from the PEs.
600	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, &
601	comm2d, status, ierr )
602	!
603	!-- Not all PEs have data for the mask.
604	IF ( ind(1) /= -9999 ) THEN
605	sender = status(MPI_SOURCE)
606	CALL MPI_RECV( tmp_array(ind(1)), ind(2)-ind(1)+1, &
607	MPI_INTEGER, sender, 1, comm2d, status, ierr )
608	mask_i_global(mid,ind(1):ind(2)) = tmp_array(ind(1):ind(2))
609	CALL MPI_RECV( tmp_array(ind(3)), ind(4)-ind(3)+1, &
610	MPI_INTEGER, sender, 2, comm2d, status, ierr )
611	mask_j_global(mid,ind(3):ind(4)) = tmp_array(ind(3):ind(4))
612	CALL MPI_RECV( tmp_array(ind(5)), ind(6)-ind(5)+1, &
613	MPI_INTEGER, sender, 3, comm2d, status, ierr )
614	mask_k_global(mid,ind(5):ind(6)) = tmp_array(ind(5):ind(6))
615	ENDIF
616	ENDDO
617
618	ELSE
619	!
620	!-- If at least part of the mask resides on the PE, send the index limits
621	!-- for the target array, otherwise send -9999 to PE0.
622	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
623	mask_size_l(mid,3) > 0 ) THEN
624	ind(1) = mask_start_l(mid,1)
625	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
626	ind(3) = mask_start_l(mid,2)
627	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
628	ind(5) = mask_start_l(mid,3)
629	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
630	ELSE
631	ind(1) = -9999; ind(2) = -9999
632	ind(3) = -9999; ind(4) = -9999
633	ind(5) = -9999; ind(6) = -9999
634	ENDIF
635	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
636	!
637	!-- If applicable, send data to PE0.
638	IF ( ind(1) /= -9999 ) THEN
639	tmp_array(:mask_size_l(mid,1)) = mask_i(mid,:mask_size_l(mid,1))
640	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,1), &
641	MPI_INTEGER, 0, 1, comm2d, ierr )
642	tmp_array(:mask_size_l(mid,2)) = mask_j(mid,:mask_size_l(mid,2))
643	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,2), &
644	MPI_INTEGER, 0, 2, comm2d, ierr )
645	tmp_array(:mask_size_l(mid,3)) = mask_k(mid,:mask_size_l(mid,3))
646	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,3), &
647	MPI_INTEGER, 0, 3, comm2d, ierr )
648	ENDIF
649	ENDIF
650	!
651	!-- A barrier has to be set, because otherwise some PEs may proceed too fast
652	!-- so that PE0 may receive wrong data on tag 0.
653	CALL MPI_BARRIER( comm2d, ierr )
654
655	IF ( netcdf_data_format > 4 ) THEN
656
657	CALL MPI_BCAST( mask_i_global(mid,:), nx+2, MPI_INTEGER, 0, comm2d, &
658	ierr )
659	CALL MPI_BCAST( mask_j_global(mid,:), ny+2, MPI_INTEGER, 0, comm2d, &
660	ierr )
661	CALL MPI_BCAST( mask_k_global(mid,:), nz+2, MPI_INTEGER, 0, comm2d, &
662	ierr )
663
664	ENDIF
665
666	#else
667	!
668	!-- Local arrays can be relocated directly.
669	mask_i_global(mid,:) = mask_i(mid,:)
670	mask_j_global(mid,:) = mask_j(mid,:)
671	mask_k_global(mid,:) = mask_k(mid,:)
672	#endif
673	ENDDO ! mid
674
675	DEALLOCATE( tmp_array )
676	!
677	!-- Internal mask arrays cannot be deallocated on PE 0 because they are
678	!-- required for header output on PE 0.
679	IF ( myid /= 0 ) DEALLOCATE( mask, mask_loop )
680
681	CONTAINS
682
683	!------------------------------------------------------------------------------!
684	! Description:
685	! ------------
686	!> Set local mask for each subdomain along 'dim' direction.
687	!------------------------------------------------------------------------------!
688	SUBROUTINE set_mask_locations( dim, dxyz, dxyz_string, nxyz, nxyz_string, &
689	lb, ub )
690
691	IMPLICIT NONE
692
693	CHARACTER (LEN=2) :: dxyz_string !<
694	CHARACTER (LEN=2) :: nxyz_string !<
695
696	INTEGER(iwp) :: count !<
697	INTEGER(iwp) :: count_l !<
698	INTEGER(iwp) :: dim !<
699	INTEGER(iwp) :: m !<
700	INTEGER(iwp) :: loop_begin !<
701	INTEGER(iwp) :: loop_end !<
702	INTEGER(iwp) :: loop_stride !<
703	INTEGER(iwp) :: lb !<
704	INTEGER(iwp) :: nxyz !<
705	INTEGER(iwp) :: ub !<
706
707	REAL(wp) :: dxyz !<
708	REAL(wp) :: ddxyz !<
709	REAL(wp) :: tmp1 !<
710	REAL(wp) :: tmp2 !<
711
712	count = 0; count_l = 0
713	ddxyz = 1.0_wp / dxyz
714	tmp1 = 0.0_wp
715	tmp2 = 0.0_wp
716
717	IF ( mask(mid,dim,1) >= 0.0_wp ) THEN
718	!
719	!-- use predefined mask_* array
720	DO WHILE ( mask(mid,dim,count+1) >= 0.0_wp )
721	count = count + 1
722	IF ( dim == 1 .OR. dim == 2 ) THEN
723	m = NINT( mask(mid,dim,count) * mask_scale(dim) * ddxyz - 0.5_wp )
724	IF ( m < 0 ) m = 0 ! avoid negative values
725	ELSEIF ( dim == 3 ) THEN
726	ind_array = &
727	MINLOC( ABS( mask(mid,dim,count) * mask_scale(dim) - zu ) )
728	m = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
729	ENDIF
730	IF ( m > (nxyz+1) ) THEN
731	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
732	m,' in mask ',mid,' along dimension ',dim, &
733	' exceeds (',nxyz_string,'+1) = ',nxyz+1
734	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
735	ENDIF
736	IF ( ( m >= lb .AND. m <= ub ) .OR. &
737	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
738	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
739	count_l = count_l + 1
740	IF ( dim == 1 ) THEN
741	mask_i(mid,count_l) = m
742	ELSEIF ( dim == 2 ) THEN
743	mask_j(mid,count_l) = m
744	ELSEIF ( dim == 3 ) THEN
745	mask_k(mid,count_l) = m
746	ENDIF
747	ENDIF
748	IF ( count == mask_xyz_dimension ) EXIT
749	ENDDO
750	mask_size(mid,dim) = count
751	mask_size_l(mid,dim) = count_l
752
753	ELSE
754	!
755	!-- use predefined mask_loop_* array, or use the default (all grid points
756	!-- along this direction)
757	IF ( mask_loop(mid,dim,1) < 0.0_wp ) THEN
758	tmp1 = mask_loop(mid,dim,1)
759	mask_loop(mid,dim,1) = zw(nzb) ! lowest level (default)
760	ENDIF
761	IF ( dim == 1 .OR. dim == 2 ) THEN
762	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
763	tmp2 = mask_loop(mid,dim,2)
764	mask_loop(mid,dim,2) = nxyz*dxyz / mask_scale(dim) ! (default)
765	ENDIF
766	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
767	> (nxyz+1) * dxyz / mask_scale(dim) ) THEN
768	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),5A,I1,A,F9.3)' ) &
769	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
770	' and/or mask_loop(',mid,',',dim,',2)=', &
771	mask_loop(mid,dim,2),' exceed (', &
772	nxyz_string,'+1)*',dxyz_string,'/mask_scale(',dim,')=', &
773	(nxyz+1)*dxyz/mask_scale(dim)
774	CALL message( 'init_masks', 'PA0332', 1, 2, 0, 6, 0 )
775	ENDIF
776	loop_begin = NINT( mask_loop(mid,dim,1) * mask_scale(dim) &
777	* ddxyz - 0.5_wp )
778	loop_end = NINT( mask_loop(mid,dim,2) * mask_scale(dim) &
779	* ddxyz - 0.5_wp )
780	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) &
781	* ddxyz )
782	IF ( loop_begin == -1 ) loop_begin = 0 ! avoid negative values
783	ELSEIF ( dim == 3 ) THEN
784	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
785	tmp2 = mask_loop(mid,dim,2)
786	mask_loop(mid,dim,2) = zu(nz+1) / mask_scale(dim) ! (default)
787	ENDIF
788	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
789	> zu(nz+1) / mask_scale(dim) ) THEN
790	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),A,I1,A,F9.3)' ) &
791	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
792	' and/or mask_loop(',mid,',',dim,',2)=', &
793	mask_loop(mid,dim,2),' exceed zu(nz+1)/mask_scale(',dim, &
794	')=',zu(nz+1)/mask_scale(dim)
795	CALL message( 'init_masks', 'PA0333', 1, 2, 0, 6, 0 )
796	ENDIF
797	ind_array = &
798	MINLOC( ABS( mask_loop(mid,dim,1) * mask_scale(dim) - zu ) )
799	loop_begin = &
800	ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
801	ind_array = &
802	MINLOC( ABS( mask_loop(mid,dim,2) * mask_scale(dim) - zu ) )
803	loop_end = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
804	!
805	!-- The following line assumes a constant vertical grid spacing within
806	!-- the vertical mask range; it fails for vertical grid stretching.
807	!-- Maybe revise later. Issue warning but continue execution. ABS(...)
808	!-- within the IF statement is necessary because the default value of
809	!-- dz_stretch_level_start is -9999999.9_wp.
810	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) * ddxyz )
811
812	IF ( mask_loop(mid,dim,2) * mask_scale(dim) > &
813	ABS( dz_stretch_level_start(1) ) ) THEN
814	WRITE ( message_string, '(A,I3,A,I1,A,F9.3,A,F8.2,3A)' ) &
815	'mask_loop(',mid,',',dim,',2)=', mask_loop(mid,dim,2), &
816	' exceeds dz_stretch_level=',dz_stretch_level_start(1), &
817	'.&Vertical mask locations will not ', &
818	'match the desired heights within the stretching ', &
819	'region.'
820	CALL message( 'init_masks', 'PA0334', 0, 1, 0, 6, 0 )
821	ENDIF
822
823	ENDIF
824	!
825	!-- If necessary, reset mask_loop(mid,dim,1) and mask_loop(mid,dim,2).
826	IF ( tmp1 < 0.0_wp ) mask_loop(mid,dim,1) = tmp1
827	IF ( tmp2 < 0.0_wp ) mask_loop(mid,dim,2) = tmp2
828	!
829	!-- The default stride +/-1 (every grid point) applies if
830	!-- mask_loop(mid,dim,3) is not specified (its default is zero).
831	IF ( loop_stride == 0 ) THEN
832	IF ( loop_end >= loop_begin ) THEN
833	loop_stride = 1
834	ELSE
835	loop_stride = -1
836	ENDIF
837	ENDIF
838	DO m = loop_begin, loop_end, loop_stride
839	count = count + 1
840	IF ( ( m >= lb .AND. m <= ub ) .OR. &
841	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
842	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
843	count_l = count_l + 1
844	IF ( dim == 1 ) THEN
845	mask_i(mid,count_l) = m
846	ELSEIF ( dim == 2 ) THEN
847	mask_j(mid,count_l) = m
848	ELSEIF ( dim == 3 ) THEN
849	mask_k(mid,count_l) = m
850	ENDIF
851	ENDIF
852	ENDDO
853	mask_size(mid,dim) = count
854	mask_size_l(mid,dim) = count_l
855
856	ENDIF
857
858	END SUBROUTINE set_mask_locations
859
860	END SUBROUTINE init_masks

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