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source: palm/trunk/SOURCE/init_masks.f90 @ 3499

Last change on this file since 3499 was 3467, checked in by suehring, 6 years ago
Branch salsa @3446 re-integrated into trunk
Property svn:keywords set to `Id`
File size: 34.3 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 3467 2018-10-30 19:05:21Z suehring $
27	! Implementation of a new aerosol module salsa.
28	!
29	! 3435 2018-10-26 18:25:44Z gronemeier
30	! Add checks for chemistry and radiation model
31	! Set indices for terrain-following masked output
32	!
33	! 3421 2018-10-24 18:39:32Z gronemeier
34	! Renamed output variables
35	!
36	! 3419 2018-10-24 17:27:31Z gronemeier
37	! ocean renamed ocean_mode
38	!
39	! 3274 2018-09-24 15:42:55Z knoop
40	! Modularization of all bulk cloud physics code components
41	!
42	! 3065 2018-06-12 07:03:02Z Giersch
43	! dz_stretch_level was replaced by dz_stretch_level_start
44	!
45	! 3049 2018-05-29 13:52:36Z Giersch
46	! Error messages revised
47	!
48	! 3045 2018-05-28 07:55:41Z Giersch
49	! Error messages revised
50	!
51	! 2718 2018-01-02 08:49:38Z maronga
52	! Corrected "Former revisions" section
53	!
54	! 2696 2017-12-14 17:12:51Z kanani
55	! Change in file header (GPL part)
56	!
57	! 2344 2017-08-09 11:00:34Z raasch
58	! explicit setting of initial values for array domask required due to a bug
59	! in the Cray compiler (appears only if option -eD is used)
60	!
61	! 2301 2017-06-29 16:41:21Z gronemeier
62	! Bugfix: set variable name length to global value
63	!
64	!
65	! Implementation of new microphysic scheme: cloud_scheme = 'morrison'
66	! includes two more prognostic equations for cloud drop concentration (nc)
67	! and cloud water content (qc).
68	!
69	! 2271 2017-06-09 12:34:55Z sward
70	! Changed error message
71	!
72	! 2101 2017-01-05 16:42:31Z suehring
73	!
74	! 2031 2016-10-21 15:11:58Z knoop
75	! renamed variable rho to rho_ocean
76	!
77	! 2000 2016-08-20 18:09:15Z knoop
78	! Forced header and separation lines into 80 columns
79	!
80	! 1822 2016-04-07 07:49:42Z hoffmann
81	! icloud_scheme replaced by microphysics_*
82	!
83	! 1804 2016-04-05 16:30:18Z maronga
84	! Removed code for parameter file check (__check)
85	!
86	! 1783 2016-03-06 18:36:17Z raasch
87	! netcdf module name changed + related changes
88	!
89	! 1682 2015-10-07 23:56:08Z knoop
90	! Code annotations made doxygen readable
91	!
92	! 1438 2014-07-22 14:14:06Z heinze
93	! +nr, qc, qr
94	!
95	! 1414 2014-05-31 11:19:48Z gronemeier
96	! Bugfix: first and last grid points as they appear in 3D volume data can now
97	! be included to masked data output
98	!
99	! 1353 2014-04-08 15:21:23Z heinze
100	! REAL constants provided with KIND-attribute
101	!
102	! 1324 2014-03-21 09:13:16Z suehring
103	! Bugfix: ONLY statement for module netcdf_control removed
104	!
105	! 1320 2014-03-20 08:40:49Z raasch
106	! ONLY-attribute added to USE-statements,
107	! kind-parameters added to all INTEGER and REAL declaration statements,
108	! kinds are defined in new module kinds,
109	! revision history before 2012 removed,
110	! comment fields (!:) to be used for variable explanations added to
111	! all variable declaration statements
112	!
113	! 1186 2013-06-18 06:22:52Z raasch
114	! bugfix: 0.0 replaced by zu(nzb) as the lowest default height level for masks,
115	! because a zero value does not work in case of ocean runs
116	!
117	! 1036 2012-10-22 13:43:42Z raasch
118	! code put under GPL (PALM 3.9)
119	!
120	! 1032 2012-10-21 13:03:21Z letzel
121	! mask locations determined based on scalar positions
122	!
123	! 1031 2012-10-19 14:35:30Z raasch
124	! netCDF4 without parallel file support implemented
125	!
126	! 996 2012-09-07 10:41:47Z raasch
127	! little reformatting
128	!
129	! 978 2012-08-09 08:28:32Z fricke
130	! +z0h*
131	!
132	! 809 2012-01-30 13:32:58Z maronga
133	! Bugfix: replaced .AND. and .NOT. with && and ! in the preprocessor directives
134	!
135	! 807 2012-01-25 11:53:51Z maronga
136	! New cpp directive "__check" implemented which is used by check_namelist_files
137	!
138	! 410 2009-12-04 17:05:40Z letzel
139	! Initial revision
140	!
141	!
142	! Description:
143	! ------------
144	!> Initialize masked data output
145	!------------------------------------------------------------------------------!
146	SUBROUTINE init_masks
147
148	USE arrays_3d, &
149	ONLY: zu, zw
150
151	USE bulk_cloud_model_mod, &
152	ONLY: bulk_cloud_model, microphysics_morrison, microphysics_seifert
153
154	USE chemistry_model_mod, &
155	ONLY: chem_check_data_output
156
157	USE control_parameters, &
158	ONLY: air_chemistry, &
159	constant_diffusion, cloud_droplets, &
160	data_output_masks, data_output_masks_user, &
161	doav, doav_n, domask, domask_no, dz, dz_stretch_level_start, &
162	humidity, mask, masks, mask_scale, mask_i, &
163	mask_i_global, mask_j, mask_j_global, mask_k, mask_k_global, &
164	mask_k_over_surface, &
165	mask_loop, mask_size, mask_size_l, mask_start_l, &
166	mask_surface, mask_x, &
167	mask_x_loop, mask_xyz_dimension, mask_y, mask_y_loop, mask_z, &
168	mask_z_loop, max_masks, message_string, mid, &
169	passive_scalar, ocean_mode, varnamelength
170
171	USE grid_variables, &
172	ONLY: dx, dy
173
174	USE indices, &
175	ONLY: nx, nxl, nxr, ny, nyn, nys, nz, nzb, nzt
176
177	USE kinds
178
179	USE netcdf_interface, &
180	ONLY: domask_unit, netcdf_data_format
181
182	USE particle_attributes, &
183	ONLY: particle_advection
184
185	USE pegrid
186
187	USE radiation_model_mod, &
188	ONLY: radiation, radiation_check_data_output
189
190	USE salsa_mod, &
191	ONLY: salsa, salsa_check_data_output
192
193	IMPLICIT NONE
194
195	CHARACTER (LEN=varnamelength) :: var !<
196	CHARACTER (LEN=7) :: unit !<
197
198	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask !<
199	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask_user !<
200
201	INTEGER(iwp) :: count !< counting masking indices along a dimension
202	INTEGER(iwp) :: i !<
203	INTEGER(iwp) :: ilen !<
204	INTEGER(iwp) :: ind(6) !<
205	INTEGER(iwp) :: ind_array(1) !<
206	INTEGER(iwp) :: j !<
207	INTEGER(iwp) :: k !<
208	INTEGER(iwp) :: m !< mask index
209	INTEGER(iwp) :: n !<
210	INTEGER(iwp) :: sender !<
211
212	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: tmp_array !<
213
214	LOGICAL :: found !<
215
216	!
217	!-- Initial values are explicitly set here due to a bug in the Cray compiler
218	!-- in case of assignments of initial values in declaration statements for
219	!-- arrays with more than 9999 elements (appears with -eD only)
220	domask = ' '
221
222	!
223	!-- Allocation and initialization
224	ALLOCATE( tmp_array( MAX(nx,ny,nz)+2 ) )
225
226	ALLOCATE( mask_i(max_masks,nxr-nxl+2), &
227	mask_j(max_masks,nyn-nys+2), &
228	mask_k(max_masks,nzt-nzb+2) )
229	!
230	!-- internal mask arrays ("mask,dimension,selection")
231	ALLOCATE( mask(max_masks,3,mask_xyz_dimension), &
232	mask_loop(max_masks,3,3) )
233
234	!
235	!-- Parallel mask output not yet supported. In check_parameters data format
236	!-- is restricted and is switched back to non-parallel output. Therefore the
237	!-- following error can not occur at the moment.
238	IF ( netcdf_data_format > 4 ) THEN
239	message_string = 'netCDF file formats '// &
240	'5 and 6 (with parallel I/O support)'// &
241	' are currently not supported.'
242	CALL message( 'init_masks', 'PA0328', 1, 2, 0, 6, 0 )
243	ENDIF
244
245	!
246	!-- Store data output parameters for masked data output in few shared arrays
247	DO mid = 1, masks
248
249	do_mask (mid,:) = data_output_masks(mid,:)
250	do_mask_user(mid,:) = data_output_masks_user(mid,:)
251	mask (mid,1,:) = mask_x(mid,:)
252	mask (mid,2,:) = mask_y(mid,:)
253	mask (mid,3,:) = mask_z(mid,:)
254	!
255	!-- Flag a mask as terrain following
256	IF ( mask_k_over_surface(mid,1) /= -1_iwp ) THEN
257	mask_surface(mid) = .TRUE.
258	ENDIF
259
260	IF ( mask_x_loop(mid,1) == -1.0_wp .AND. mask_x_loop(mid,2) == -1.0_wp&
261	.AND. mask_x_loop(mid,3) == -1.0_wp ) THEN
262	mask_loop(mid,1,1:2) = -1.0_wp
263	mask_loop(mid,1,3) = 0.0_wp
264	ELSE
265	mask_loop(mid,1,:) = mask_x_loop(mid,:)
266	ENDIF
267	IF ( mask_y_loop(mid,1) == -1.0_wp .AND. mask_y_loop(mid,2) == -1.0_wp&
268	.AND. mask_y_loop(mid,3) == -1.0_wp ) THEN
269	mask_loop(mid,2,1:2) = -1.0_wp
270	mask_loop(mid,2,3) = 0.0_wp
271	ELSE
272	mask_loop(mid,2,:) = mask_y_loop(mid,:)
273	ENDIF
274	IF ( mask_z_loop(mid,1) == -1.0_wp .AND. mask_z_loop(mid,2) == -1.0_wp&
275	.AND. mask_z_loop(mid,3) == -1.0_wp ) THEN
276	mask_loop(mid,3,1:2) = -1.0_wp
277	mask_loop(mid,3,3) = 0.0_wp
278	ELSE
279	mask_loop(mid,3,:) = mask_z_loop(mid,:)
280	ENDIF
281
282	ENDDO
283
284	mask_i = -1; mask_j = -1; mask_k = -1
285
286	!
287	!-- Global arrays are required by define_netcdf_header.
288	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
289	ALLOCATE( mask_i_global(max_masks,nx+2), &
290	mask_j_global(max_masks,ny+2), &
291	mask_k_global(max_masks,nz+2) )
292	mask_i_global = -1; mask_j_global = -1; mask_k_global = -1
293	ENDIF
294
295	!
296	!-- Determine variable names for each mask
297	DO mid = 1, masks
298	!
299	!-- Append user-defined data output variables to the standard data output
300	IF ( do_mask_user(mid,1) /= ' ' ) THEN
301	i = 1
302	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
303	i = i + 1
304	ENDDO
305	j = 1
306	DO WHILE ( do_mask_user(mid,j) /= ' ' .AND. j <= 100 )
307	IF ( i > 100 ) THEN
308	WRITE ( message_string, * ) 'number of output quantitities ', &
309	'given by data_output_mask and data_output_mask_user ', &
310	'exceeds the limit of 100'
311	CALL message( 'init_masks', 'PA0329', 1, 2, 0, 6, 0 )
312	ENDIF
313	do_mask(mid,i) = do_mask_user(mid,j)
314	i = i + 1
315	j = j + 1
316	ENDDO
317	ENDIF
318
319	!
320	!-- Check and set steering parameters for mask data output and averaging
321	i = 1
322	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
323	!
324	!-- Check for data averaging
325	ilen = LEN_TRIM( do_mask(mid,i) )
326	j = 0 ! no data averaging
327	IF ( ilen > 3 ) THEN
328	IF ( do_mask(mid,i)(ilen-2:ilen) == '_av' ) THEN
329	j = 1 ! data averaging
330	do_mask(mid,i) = do_mask(mid,i)(1:ilen-3)
331	ENDIF
332	ENDIF
333	var = TRIM( do_mask(mid,i) )
334	!
335	!-- Check for allowed value and set units
336	SELECT CASE ( TRIM( var ) )
337
338	CASE ( 'e' )
339	IF ( constant_diffusion ) THEN
340	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
341	'" requires constant_diffusion = .FALSE.'
342	CALL message( 'init_masks', 'PA0103', 1, 2, 0, 6, 0 )
343	ENDIF
344	unit = 'm2/s2'
345
346	CASE ( 'thetal' )
347	IF ( .NOT. bulk_cloud_model ) THEN
348	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
349	'" requires bulk_cloud_model = .TRUE.'
350	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
351	ENDIF
352	unit = 'K'
353
354	CASE ( 'nc' )
355	IF ( .NOT. bulk_cloud_model ) THEN
356	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
357	'" requires bulk_cloud_model = .TRUE.'
358	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
359	ELSEIF ( .NOT. microphysics_morrison ) THEN
360	message_string = 'output of "' // TRIM( var ) // '" ' // &
361	'requires = morrison'
362	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
363	ENDIF
364	unit = '1/m3'
365
366	CASE ( 'nr' )
367	IF ( .NOT. bulk_cloud_model ) THEN
368	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
369	'" requires bulk_cloud_model = .TRUE.'
370	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
371	ELSEIF ( .NOT. microphysics_seifert ) THEN
372	message_string = 'output of "' // TRIM( var ) // '"' // &
373	'requires cloud_scheme = seifert_beheng'
374	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
375	ENDIF
376	unit = '1/m3'
377
378	CASE ( 'pc', 'pr' )
379	IF ( .NOT. particle_advection ) THEN
380	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
381	'" requires a "particles_par"-NAMELIST in the ', &
382	'parameter file (PARIN)'
383	CALL message( 'init_masks', 'PA0104', 1, 2, 0, 6, 0 )
384	ENDIF
385	IF ( TRIM( var ) == 'pc' ) unit = 'number'
386	IF ( TRIM( var ) == 'pr' ) unit = 'm'
387
388	CASE ( 'q', 'thetav' )
389	IF ( .NOT. humidity ) THEN
390	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
391	'" requires humidity = .TRUE.'
392	CALL message( 'init_masks', 'PA0105', 1, 2, 0, 6, 0 )
393	ENDIF
394	IF ( TRIM( var ) == 'q' ) unit = 'kg/kg'
395	IF ( TRIM( var ) == 'thetav' ) unit = 'K'
396
397	CASE ( 'qc' )
398	IF ( .NOT. bulk_cloud_model ) THEN
399	message_string = 'output of "' // TRIM( var ) // '"' // &
400	'requires bulk_cloud_model = .TRUE.'
401	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
402	ENDIF
403	unit = 'kg/kg'
404
405	CASE ( 'ql' )
406	IF ( .NOT. ( bulk_cloud_model .OR. cloud_droplets ) ) THEN
407	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
408	'" requires bulk_cloud_model = .TRUE. or ', &
409	'cloud_droplets = .TRUE.'
410	CALL message( 'init_masks', 'PA0106', 1, 2, 0, 6, 0 )
411	ENDIF
412	unit = 'kg/kg'
413
414	CASE ( 'ql_c', 'ql_v', 'ql_vp' )
415	IF ( .NOT. cloud_droplets ) THEN
416	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
417	'" requires cloud_droplets = .TRUE.'
418	CALL message( 'init_masks', 'PA0107', 1, 2, 0, 6, 0 )
419	ENDIF
420	IF ( TRIM( var ) == 'ql_c' ) unit = 'kg/kg'
421	IF ( TRIM( var ) == 'ql_v' ) unit = 'm3'
422	IF ( TRIM( var ) == 'ql_vp' ) unit = 'none'
423
424	CASE ( 'qv' )
425	IF ( .NOT. bulk_cloud_model ) THEN
426	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
427	'" requires bulk_cloud_model = .TRUE.'
428	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
429	ENDIF
430	unit = 'kg/kg'
431
432	CASE ( 'qr' )
433	IF ( .NOT. bulk_cloud_model ) THEN
434	message_string = 'output of "' // TRIM( var ) // '" ' // &
435	'requires bulk_cloud_model = .TRUE.'
436	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
437	ELSEIF ( .NOT. microphysics_seifert ) THEN
438	message_string = 'output of "' // TRIM( var ) // '" ' // &
439	'requires cloud_scheme = seifert_beheng'
440	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
441	ENDIF
442	unit = 'kg/kg'
443
444	CASE ( 'rho_sea_water' )
445	IF ( .NOT. ocean_mode ) THEN
446	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
447	'" requires ocean mode'
448	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
449	ENDIF
450	unit = 'kg/m3'
451
452	CASE ( 's' )
453	IF ( .NOT. passive_scalar ) THEN
454	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
455	'" requires passive_scalar = .TRUE.'
456	CALL message( 'init_masks', 'PA0110', 1, 2, 0, 6, 0 )
457	ENDIF
458	unit = 'conc'
459
460	CASE ( 'sa' )
461	IF ( .NOT. ocean_mode ) THEN
462	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
463	'" requires ocean mode'
464	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
465	ENDIF
466	unit = 'psu'
467
468	CASE ( 'us', 't', 'lwp', 'pra', 'prr', 'z0', 'z0h*' )
469	WRITE ( message_string, * ) 'illegal value for data_', &
470	'output: "', TRIM( var ), '" is only allowed', &
471	'for horizontal cross section'
472	CALL message( 'init_masks', 'PA0111', 1, 2, 0, 6, 0 )
473
474	CASE ( 'p', 'theta', 'u', 'v', 'w' )
475	IF ( TRIM( var ) == 'p' ) unit = 'Pa'
476	IF ( TRIM( var ) == 'theta' ) unit = 'K'
477	IF ( TRIM( var ) == 'u' ) unit = 'm/s'
478	IF ( TRIM( var ) == 'v' ) unit = 'm/s'
479	IF ( TRIM( var ) == 'w' ) unit = 'm/s'
480	CONTINUE
481
482	CASE DEFAULT
483
484	CALL user_check_data_output( var, unit )
485
486	IF ( salsa ) THEN
487	CALL salsa_check_data_output( var, unit )
488	ENDIF
489
490	IF ( unit == 'illegal' .AND. air_chemistry &
491	.AND. (var(1:3) == 'kc_' .OR. var(1:3) == 'em_') ) THEN
492	CALL chem_check_data_output( var, unit, 0, 0, 0 )
493	ENDIF
494
495	IF ( unit == 'illegal' ) THEN
496	CALL radiation_check_data_output( var, unit, 0, 0, 0 )
497	ENDIF
498
499	IF ( unit == 'illegal' ) THEN
500	IF ( do_mask_user(mid,1) /= ' ' ) THEN
501	WRITE ( message_string, * ) 'illegal value for data_', &
502	'output_masks or data_output_masks_user: "', &
503	TRIM( do_mask(mid,i) ), '"'
504	CALL message( 'init_masks', 'PA0018', 1, 2, 0, 6, 0 )
505	ELSE
506	WRITE ( message_string, * ) 'illegal value for data_', &
507	' output_masks : "', TRIM( do_mask(mid,i) ), '"'
508	CALL message( 'init_masks', 'PA0330', 1, 2, 0, 6, 0 )
509	ENDIF
510	ENDIF
511
512	END SELECT
513	!
514	!-- Set the internal steering parameters appropriately
515	domask_no(mid,j) = domask_no(mid,j) + 1
516	domask(mid,j,domask_no(mid,j)) = do_mask(mid,i)
517	domask_unit(mid,j,domask_no(mid,j)) = unit
518
519	IF ( j == 1 ) THEN
520	!
521	!-- Check, if variable is already subject to averaging
522	found = .FALSE.
523	DO k = 1, doav_n
524	IF ( TRIM( doav(k) ) == TRIM( var ) ) found = .TRUE.
525	ENDDO
526
527	IF ( .NOT. found ) THEN
528	doav_n = doav_n + 1
529	doav(doav_n) = var
530	ENDIF
531	ENDIF
532
533	i = i + 1
534
535	ENDDO ! do_mask(mid,i)
536	ENDDO ! mid
537
538
539	!
540	!-- Determine mask locations for each mask
541	DO mid = 1, masks
542	!
543	!-- Set local masks for each subdomain along all three dimensions
544	CALL set_mask_locations( 1, dx, 'dx', nx, 'nx', nxl, nxr )
545	CALL set_mask_locations( 2, dy, 'dy', ny, 'ny', nys, nyn )
546	IF ( .NOT. mask_surface(mid) ) THEN
547	CALL set_mask_locations( 3, dz(1), 'dz', nz, 'nz', nzb, nzt )
548	ELSE
549	!
550	!-- Set vertical mask locations and size in case of terrain-following
551	!-- output
552	count = 0
553	DO WHILE ( mask_k_over_surface(mid, count+1) >= 0 )
554	m = mask_k_over_surface(mid, count+1)
555	IF ( m > nz+1 ) THEN
556	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
557	m,' in mask ',mid,' along dimension ', 3, &
558	' exceeds (nz+1) = ',nz+1
559	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
560	ENDIF
561	count = count + 1
562	mask_k(mid,count) = mask_k_over_surface(mid, count)
563	IF ( count == mask_xyz_dimension ) EXIT
564	ENDDO
565	mask_start_l(mid,3) = 1
566	mask_size(mid,3) = count
567	mask_size_l(mid,3) = count
568	ENDIF
569	!
570	!-- Set global masks along all three dimensions (required by
571	!-- define_netcdf_header).
572	#if defined( __parallel )
573	!
574	!-- PE0 receives partial arrays from all processors of the respective mask
575	!-- and outputs them. Here a barrier has to be set, because otherwise
576	!-- "-MPI- FATAL: Remote protocol queue full" may occur.
577
578	CALL MPI_BARRIER( comm2d, ierr )
579
580	IF ( myid == 0 ) THEN
581	!
582	!-- Local arrays can be relocated directly.
583	mask_i_global(mid,mask_start_l(mid,1): &
584	mask_start_l(mid,1)+mask_size_l(mid,1)-1) = &
585	mask_i(mid,:mask_size_l(mid,1))
586	mask_j_global(mid,mask_start_l(mid,2): &
587	mask_start_l(mid,2)+mask_size_l(mid,2)-1) = &
588	mask_j(mid,:mask_size_l(mid,2))
589	mask_k_global(mid,mask_start_l(mid,3): &
590	mask_start_l(mid,3)+mask_size_l(mid,3)-1) = &
591	mask_k(mid,:mask_size_l(mid,3))
592	!
593	!-- Receive data from all other PEs.
594	DO n = 1, numprocs-1
595	!
596	!-- Receive index limits first, then arrays.
597	!-- Index limits are received in arbitrary order from the PEs.
598	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, &
599	comm2d, status, ierr )
600	!
601	!-- Not all PEs have data for the mask.
602	IF ( ind(1) /= -9999 ) THEN
603	sender = status(MPI_SOURCE)
604	CALL MPI_RECV( tmp_array(ind(1)), ind(2)-ind(1)+1, &
605	MPI_INTEGER, sender, 1, comm2d, status, ierr )
606	mask_i_global(mid,ind(1):ind(2)) = tmp_array(ind(1):ind(2))
607	CALL MPI_RECV( tmp_array(ind(3)), ind(4)-ind(3)+1, &
608	MPI_INTEGER, sender, 2, comm2d, status, ierr )
609	mask_j_global(mid,ind(3):ind(4)) = tmp_array(ind(3):ind(4))
610	CALL MPI_RECV( tmp_array(ind(5)), ind(6)-ind(5)+1, &
611	MPI_INTEGER, sender, 3, comm2d, status, ierr )
612	mask_k_global(mid,ind(5):ind(6)) = tmp_array(ind(5):ind(6))
613	ENDIF
614	ENDDO
615
616	ELSE
617	!
618	!-- If at least part of the mask resides on the PE, send the index limits
619	!-- for the target array, otherwise send -9999 to PE0.
620	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
621	mask_size_l(mid,3) > 0 ) THEN
622	ind(1) = mask_start_l(mid,1)
623	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
624	ind(3) = mask_start_l(mid,2)
625	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
626	ind(5) = mask_start_l(mid,3)
627	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
628	ELSE
629	ind(1) = -9999; ind(2) = -9999
630	ind(3) = -9999; ind(4) = -9999
631	ind(5) = -9999; ind(6) = -9999
632	ENDIF
633	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
634	!
635	!-- If applicable, send data to PE0.
636	IF ( ind(1) /= -9999 ) THEN
637	tmp_array(:mask_size_l(mid,1)) = mask_i(mid,:mask_size_l(mid,1))
638	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,1), &
639	MPI_INTEGER, 0, 1, comm2d, ierr )
640	tmp_array(:mask_size_l(mid,2)) = mask_j(mid,:mask_size_l(mid,2))
641	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,2), &
642	MPI_INTEGER, 0, 2, comm2d, ierr )
643	tmp_array(:mask_size_l(mid,3)) = mask_k(mid,:mask_size_l(mid,3))
644	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,3), &
645	MPI_INTEGER, 0, 3, comm2d, ierr )
646	ENDIF
647	ENDIF
648	!
649	!-- A barrier has to be set, because otherwise some PEs may proceed too fast
650	!-- so that PE0 may receive wrong data on tag 0.
651	CALL MPI_BARRIER( comm2d, ierr )
652
653	IF ( netcdf_data_format > 4 ) THEN
654
655	CALL MPI_BCAST( mask_i_global(mid,:), nx+2, MPI_INTEGER, 0, comm2d, &
656	ierr )
657	CALL MPI_BCAST( mask_j_global(mid,:), ny+2, MPI_INTEGER, 0, comm2d, &
658	ierr )
659	CALL MPI_BCAST( mask_k_global(mid,:), nz+2, MPI_INTEGER, 0, comm2d, &
660	ierr )
661
662	ENDIF
663
664	#else
665	!
666	!-- Local arrays can be relocated directly.
667	mask_i_global(mid,:) = mask_i(mid,:)
668	mask_j_global(mid,:) = mask_j(mid,:)
669	mask_k_global(mid,:) = mask_k(mid,:)
670	#endif
671	ENDDO ! mid
672
673	DEALLOCATE( tmp_array )
674	!
675	!-- Internal mask arrays cannot be deallocated on PE 0 because they are
676	!-- required for header output on PE 0.
677	IF ( myid /= 0 ) DEALLOCATE( mask, mask_loop )
678
679	CONTAINS
680
681	!------------------------------------------------------------------------------!
682	! Description:
683	! ------------
684	!> Set local mask for each subdomain along 'dim' direction.
685	!------------------------------------------------------------------------------!
686	SUBROUTINE set_mask_locations( dim, dxyz, dxyz_string, nxyz, nxyz_string, &
687	lb, ub )
688
689	IMPLICIT NONE
690
691	CHARACTER (LEN=2) :: dxyz_string !<
692	CHARACTER (LEN=2) :: nxyz_string !<
693
694	INTEGER(iwp) :: count !<
695	INTEGER(iwp) :: count_l !<
696	INTEGER(iwp) :: dim !<
697	INTEGER(iwp) :: m !<
698	INTEGER(iwp) :: loop_begin !<
699	INTEGER(iwp) :: loop_end !<
700	INTEGER(iwp) :: loop_stride !<
701	INTEGER(iwp) :: lb !<
702	INTEGER(iwp) :: nxyz !<
703	INTEGER(iwp) :: ub !<
704
705	REAL(wp) :: dxyz !<
706	REAL(wp) :: ddxyz !<
707	REAL(wp) :: tmp1 !<
708	REAL(wp) :: tmp2 !<
709
710	count = 0; count_l = 0
711	ddxyz = 1.0_wp / dxyz
712	tmp1 = 0.0_wp
713	tmp2 = 0.0_wp
714
715	IF ( mask(mid,dim,1) >= 0.0_wp ) THEN
716	!
717	!-- use predefined mask_* array
718	DO WHILE ( mask(mid,dim,count+1) >= 0.0_wp )
719	count = count + 1
720	IF ( dim == 1 .OR. dim == 2 ) THEN
721	m = NINT( mask(mid,dim,count) * mask_scale(dim) * ddxyz - 0.5_wp )
722	IF ( m < 0 ) m = 0 ! avoid negative values
723	ELSEIF ( dim == 3 ) THEN
724	ind_array = &
725	MINLOC( ABS( mask(mid,dim,count) * mask_scale(dim) - zu ) )
726	m = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
727	ENDIF
728	IF ( m > (nxyz+1) ) THEN
729	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
730	m,' in mask ',mid,' along dimension ',dim, &
731	' exceeds (',nxyz_string,'+1) = ',nxyz+1
732	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
733	ENDIF
734	IF ( ( m >= lb .AND. m <= ub ) .OR. &
735	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
736	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
737	count_l = count_l + 1
738	IF ( dim == 1 ) THEN
739	mask_i(mid,count_l) = m
740	ELSEIF ( dim == 2 ) THEN
741	mask_j(mid,count_l) = m
742	ELSEIF ( dim == 3 ) THEN
743	mask_k(mid,count_l) = m
744	ENDIF
745	ENDIF
746	IF ( count == mask_xyz_dimension ) EXIT
747	ENDDO
748	mask_size(mid,dim) = count
749	mask_size_l(mid,dim) = count_l
750
751	ELSE
752	!
753	!-- use predefined mask_loop_* array, or use the default (all grid points
754	!-- along this direction)
755	IF ( mask_loop(mid,dim,1) < 0.0_wp ) THEN
756	tmp1 = mask_loop(mid,dim,1)
757	mask_loop(mid,dim,1) = zw(nzb) ! lowest level (default)
758	ENDIF
759	IF ( dim == 1 .OR. dim == 2 ) THEN
760	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
761	tmp2 = mask_loop(mid,dim,2)
762	mask_loop(mid,dim,2) = (nxyz+1)*dxyz / mask_scale(dim) ! (default)
763	ENDIF
764	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
765	> (nxyz+1) * dxyz / mask_scale(dim) ) THEN
766	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),5A,I1,A,F9.3)' ) &
767	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
768	' and/or mask_loop(',mid,',',dim,',2)=', &
769	mask_loop(mid,dim,2),' exceed (', &
770	nxyz_string,'+1)*',dxyz_string,'/mask_scale(',dim,')=', &
771	(nxyz+1)*dxyz/mask_scale(dim)
772	CALL message( 'init_masks', 'PA0332', 1, 2, 0, 6, 0 )
773	ENDIF
774	loop_begin = NINT( mask_loop(mid,dim,1) * mask_scale(dim) &
775	* ddxyz - 0.5_wp )
776	loop_end = NINT( mask_loop(mid,dim,2) * mask_scale(dim) &
777	* ddxyz - 0.5_wp )
778	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) &
779	* ddxyz )
780	IF ( loop_begin == -1 ) loop_begin = 0 ! avoid negative values
781	ELSEIF ( dim == 3 ) THEN
782	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
783	tmp2 = mask_loop(mid,dim,2)
784	mask_loop(mid,dim,2) = zu(nz+1) / mask_scale(dim) ! (default)
785	ENDIF
786	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
787	> zu(nz+1) / mask_scale(dim) ) THEN
788	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),A,I1,A,F9.3)' ) &
789	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
790	' and/or mask_loop(',mid,',',dim,',2)=', &
791	mask_loop(mid,dim,2),' exceed zu(nz+1)/mask_scale(',dim, &
792	')=',zu(nz+1)/mask_scale(dim)
793	CALL message( 'init_masks', 'PA0333', 1, 2, 0, 6, 0 )
794	ENDIF
795	ind_array = &
796	MINLOC( ABS( mask_loop(mid,dim,1) * mask_scale(dim) - zu ) )
797	loop_begin = &
798	ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
799	ind_array = &
800	MINLOC( ABS( mask_loop(mid,dim,2) * mask_scale(dim) - zu ) )
801	loop_end = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
802	!
803	!-- The following line assumes a constant vertical grid spacing within
804	!-- the vertical mask range; it fails for vertical grid stretching.
805	!-- Maybe revise later. Issue warning but continue execution. ABS(...)
806	!-- within the IF statement is necessary because the default value of
807	!-- dz_stretch_level_start is -9999999.9_wp.
808	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) * ddxyz )
809
810	IF ( mask_loop(mid,dim,2) * mask_scale(dim) > &
811	ABS( dz_stretch_level_start(1) ) ) THEN
812	WRITE ( message_string, '(A,I3,A,I1,A,F9.3,A,F8.2,3A)' ) &
813	'mask_loop(',mid,',',dim,',2)=', mask_loop(mid,dim,2), &
814	' exceeds dz_stretch_level=',dz_stretch_level_start(1), &
815	'.&Vertical mask locations will not ', &
816	'match the desired heights within the stretching ', &
817	'region.'
818	CALL message( 'init_masks', 'PA0334', 0, 1, 0, 6, 0 )
819	ENDIF
820
821	ENDIF
822	!
823	!-- If necessary, reset mask_loop(mid,dim,1) and mask_loop(mid,dim,2).
824	IF ( tmp1 < 0.0_wp ) mask_loop(mid,dim,1) = tmp1
825	IF ( tmp2 < 0.0_wp ) mask_loop(mid,dim,2) = tmp2
826	!
827	!-- The default stride +/-1 (every grid point) applies if
828	!-- mask_loop(mid,dim,3) is not specified (its default is zero).
829	IF ( loop_stride == 0 ) THEN
830	IF ( loop_end >= loop_begin ) THEN
831	loop_stride = 1
832	ELSE
833	loop_stride = -1
834	ENDIF
835	ENDIF
836	DO m = loop_begin, loop_end, loop_stride
837	count = count + 1
838	IF ( ( m >= lb .AND. m <= ub ) .OR. &
839	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
840	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
841	count_l = count_l + 1
842	IF ( dim == 1 ) THEN
843	mask_i(mid,count_l) = m
844	ELSEIF ( dim == 2 ) THEN
845	mask_j(mid,count_l) = m
846	ELSEIF ( dim == 3 ) THEN
847	mask_k(mid,count_l) = m
848	ENDIF
849	ENDIF
850	ENDDO
851	mask_size(mid,dim) = count
852	mask_size_l(mid,dim) = count_l
853
854	ENDIF
855
856	END SUBROUTINE set_mask_locations
857
858	END SUBROUTINE init_masks

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