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source: palm/trunk/SOURCE/init_masks.f90 @ 3585

Last change on this file since 3585 was 3582, checked in by suehring, 6 years ago
Merge branch salsa with trunk
Property svn:keywords set to `Id`
File size: 34.9 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	! Move the control parameter "salsa" from salsa_mod to control_parameters
23	! (M. Kurppa)
24	!
25	! Former revisions:
26	! -----------------
27	! $Id: init_masks.f90 3582 2018-11-29 19:16:36Z forkel $
28	! add variable description
29	!
30	! 3512 2018-11-09 18:09:51Z gronemeier
31	! Bugfix: do not output ghost points if mask_x/y_loop is not specified
32	!
33	! 3467 2018-10-30 19:05:21Z suehring
34	! Implementation of a new aerosol module salsa.
35	!
36	! 3435 2018-10-26 18:25:44Z gronemeier
37	! Add checks for chemistry and radiation model
38	! Set indices for terrain-following masked output
39	!
40	! 3421 2018-10-24 18:39:32Z gronemeier
41	! Renamed output variables
42	!
43	! 3419 2018-10-24 17:27:31Z gronemeier
44	! ocean renamed ocean_mode
45	!
46	! 3274 2018-09-24 15:42:55Z knoop
47	! Modularization of all bulk cloud physics code components
48	!
49	! 3065 2018-06-12 07:03:02Z Giersch
50	! dz_stretch_level was replaced by dz_stretch_level_start
51	!
52	! 3049 2018-05-29 13:52:36Z Giersch
53	! Error messages revised
54	!
55	! 3045 2018-05-28 07:55:41Z Giersch
56	! Error messages revised
57	!
58	! 2718 2018-01-02 08:49:38Z maronga
59	! Corrected "Former revisions" section
60	!
61	! 2696 2017-12-14 17:12:51Z kanani
62	! Change in file header (GPL part)
63	!
64	! 2344 2017-08-09 11:00:34Z raasch
65	! explicit setting of initial values for array domask required due to a bug
66	! in the Cray compiler (appears only if option -eD is used)
67	!
68	! 2301 2017-06-29 16:41:21Z gronemeier
69	! Bugfix: set variable name length to global value
70	!
71	!
72	! Implementation of new microphysic scheme: cloud_scheme = 'morrison'
73	! includes two more prognostic equations for cloud drop concentration (nc)
74	! and cloud water content (qc).
75	!
76	! 2271 2017-06-09 12:34:55Z sward
77	! Changed error message
78	!
79	! 2101 2017-01-05 16:42:31Z suehring
80	!
81	! 2031 2016-10-21 15:11:58Z knoop
82	! renamed variable rho to rho_ocean
83	!
84	! 2000 2016-08-20 18:09:15Z knoop
85	! Forced header and separation lines into 80 columns
86	!
87	! 1822 2016-04-07 07:49:42Z hoffmann
88	! icloud_scheme replaced by microphysics_*
89	!
90	! 1804 2016-04-05 16:30:18Z maronga
91	! Removed code for parameter file check (__check)
92	!
93	! 1783 2016-03-06 18:36:17Z raasch
94	! netcdf module name changed + related changes
95	!
96	! 1682 2015-10-07 23:56:08Z knoop
97	! Code annotations made doxygen readable
98	!
99	! 1438 2014-07-22 14:14:06Z heinze
100	! +nr, qc, qr
101	!
102	! 1414 2014-05-31 11:19:48Z gronemeier
103	! Bugfix: first and last grid points as they appear in 3D volume data can now
104	! be included to masked data output
105	!
106	! 1353 2014-04-08 15:21:23Z heinze
107	! REAL constants provided with KIND-attribute
108	!
109	! 1324 2014-03-21 09:13:16Z suehring
110	! Bugfix: ONLY statement for module netcdf_control removed
111	!
112	! 1320 2014-03-20 08:40:49Z raasch
113	! ONLY-attribute added to USE-statements,
114	! kind-parameters added to all INTEGER and REAL declaration statements,
115	! kinds are defined in new module kinds,
116	! revision history before 2012 removed,
117	! comment fields (!:) to be used for variable explanations added to
118	! all variable declaration statements
119	!
120	! 1186 2013-06-18 06:22:52Z raasch
121	! bugfix: 0.0 replaced by zu(nzb) as the lowest default height level for masks,
122	! because a zero value does not work in case of ocean runs
123	!
124	! 1036 2012-10-22 13:43:42Z raasch
125	! code put under GPL (PALM 3.9)
126	!
127	! 1032 2012-10-21 13:03:21Z letzel
128	! mask locations determined based on scalar positions
129	!
130	! 1031 2012-10-19 14:35:30Z raasch
131	! netCDF4 without parallel file support implemented
132	!
133	! 996 2012-09-07 10:41:47Z raasch
134	! little reformatting
135	!
136	! 978 2012-08-09 08:28:32Z fricke
137	! +z0h*
138	!
139	! 809 2012-01-30 13:32:58Z maronga
140	! Bugfix: replaced .AND. and .NOT. with && and ! in the preprocessor directives
141	!
142	! 807 2012-01-25 11:53:51Z maronga
143	! New cpp directive "__check" implemented which is used by check_namelist_files
144	!
145	! 410 2009-12-04 17:05:40Z letzel
146	! Initial revision
147	!
148	!
149	! Description:
150	! ------------
151	!> Initialize masked data output
152	!------------------------------------------------------------------------------!
153	SUBROUTINE init_masks
154
155	USE arrays_3d, &
156	ONLY: zu, zw
157
158	USE bulk_cloud_model_mod, &
159	ONLY: bulk_cloud_model, microphysics_morrison, microphysics_seifert
160
161	USE chemistry_model_mod, &
162	ONLY: chem_check_data_output
163
164	USE control_parameters, &
165	ONLY: air_chemistry, &
166	constant_diffusion, cloud_droplets, &
167	data_output_masks, data_output_masks_user, &
168	doav, doav_n, domask, domask_no, dz, dz_stretch_level_start, &
169	humidity, mask, masks, mask_scale, mask_i, &
170	mask_i_global, mask_j, mask_j_global, mask_k, mask_k_global, &
171	mask_k_over_surface, &
172	mask_loop, mask_size, mask_size_l, mask_start_l, &
173	mask_surface, mask_x, &
174	mask_x_loop, mask_xyz_dimension, mask_y, mask_y_loop, mask_z, &
175	mask_z_loop, max_masks, message_string, mid, &
176	passive_scalar, ocean_mode, salsa, varnamelength
177
178	USE grid_variables, &
179	ONLY: dx, dy
180
181	USE indices, &
182	ONLY: nx, nxl, nxr, ny, nyn, nys, nz, nzb, nzt
183
184	USE kinds
185
186	USE netcdf_interface, &
187	ONLY: domask_unit, netcdf_data_format
188
189	USE particle_attributes, &
190	ONLY: particle_advection
191
192	USE pegrid
193
194	USE radiation_model_mod, &
195	ONLY: radiation, radiation_check_data_output
196
197	USE salsa_mod, &
198	ONLY: salsa_check_data_output
199
200	IMPLICIT NONE
201
202	CHARACTER (LEN=varnamelength) :: var !< contains variable name
203	CHARACTER (LEN=7) :: unit !< contains unit of variable
204
205	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask !< list of output variables
206	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask_user !< list of user-specified output variables
207
208	INTEGER(iwp) :: count !< counting masking indices along a dimension
209	INTEGER(iwp) :: i !< loop index
210	INTEGER(iwp) :: ilen !< length of string saved in 'do_mask'
211	INTEGER(iwp) :: ind(6) !< index limits (lower/upper bounds) of output array
212	INTEGER(iwp) :: ind_array(1) !< array index
213	INTEGER(iwp) :: j !< loop index
214	INTEGER(iwp) :: k !< loop index
215	INTEGER(iwp) :: m !< mask index
216	INTEGER(iwp) :: n !< loop index
217	INTEGER(iwp) :: sender !< PE id of sending PE
218
219	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: tmp_array !< temporary 1D array
220
221	LOGICAL :: found !< true if variable is found
222
223	!
224	!-- Initial values are explicitly set here due to a bug in the Cray compiler
225	!-- in case of assignments of initial values in declaration statements for
226	!-- arrays with more than 9999 elements (appears with -eD only)
227	domask = ' '
228
229	!
230	!-- Allocation and initialization
231	ALLOCATE( tmp_array( MAX(nx,ny,nz)+2 ) )
232
233	ALLOCATE( mask_i(max_masks,nxr-nxl+2), &
234	mask_j(max_masks,nyn-nys+2), &
235	mask_k(max_masks,nzt-nzb+2) )
236	!
237	!-- internal mask arrays ("mask,dimension,selection")
238	ALLOCATE( mask(max_masks,3,mask_xyz_dimension), &
239	mask_loop(max_masks,3,3) )
240
241	!
242	!-- Parallel mask output not yet supported. In check_parameters data format
243	!-- is restricted and is switched back to non-parallel output. Therefore the
244	!-- following error can not occur at the moment.
245	IF ( netcdf_data_format > 4 ) THEN
246	message_string = 'netCDF file formats '// &
247	'5 and 6 (with parallel I/O support)'// &
248	' are currently not supported.'
249	CALL message( 'init_masks', 'PA0328', 1, 2, 0, 6, 0 )
250	ENDIF
251
252	!
253	!-- Store data output parameters for masked data output in few shared arrays
254	DO mid = 1, masks
255
256	do_mask (mid,:) = data_output_masks(mid,:)
257	do_mask_user(mid,:) = data_output_masks_user(mid,:)
258	mask (mid,1,:) = mask_x(mid,:)
259	mask (mid,2,:) = mask_y(mid,:)
260	mask (mid,3,:) = mask_z(mid,:)
261	!
262	!-- Flag a mask as terrain following
263	IF ( mask_k_over_surface(mid,1) /= -1_iwp ) THEN
264	mask_surface(mid) = .TRUE.
265	ENDIF
266
267	IF ( mask_x_loop(mid,1) == -1.0_wp .AND. mask_x_loop(mid,2) == -1.0_wp&
268	.AND. mask_x_loop(mid,3) == -1.0_wp ) THEN
269	mask_loop(mid,1,1:2) = -1.0_wp
270	mask_loop(mid,1,3) = 0.0_wp
271	ELSE
272	mask_loop(mid,1,:) = mask_x_loop(mid,:)
273	ENDIF
274	IF ( mask_y_loop(mid,1) == -1.0_wp .AND. mask_y_loop(mid,2) == -1.0_wp&
275	.AND. mask_y_loop(mid,3) == -1.0_wp ) THEN
276	mask_loop(mid,2,1:2) = -1.0_wp
277	mask_loop(mid,2,3) = 0.0_wp
278	ELSE
279	mask_loop(mid,2,:) = mask_y_loop(mid,:)
280	ENDIF
281	IF ( mask_z_loop(mid,1) == -1.0_wp .AND. mask_z_loop(mid,2) == -1.0_wp&
282	.AND. mask_z_loop(mid,3) == -1.0_wp ) THEN
283	mask_loop(mid,3,1:2) = -1.0_wp
284	mask_loop(mid,3,3) = 0.0_wp
285	ELSE
286	mask_loop(mid,3,:) = mask_z_loop(mid,:)
287	ENDIF
288
289	ENDDO
290
291	mask_i = -1; mask_j = -1; mask_k = -1
292
293	!
294	!-- Global arrays are required by define_netcdf_header.
295	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
296	ALLOCATE( mask_i_global(max_masks,nx+2), &
297	mask_j_global(max_masks,ny+2), &
298	mask_k_global(max_masks,nz+2) )
299	mask_i_global = -1; mask_j_global = -1; mask_k_global = -1
300	ENDIF
301
302	!
303	!-- Determine variable names for each mask
304	DO mid = 1, masks
305	!
306	!-- Append user-defined data output variables to the standard data output
307	IF ( do_mask_user(mid,1) /= ' ' ) THEN
308	i = 1
309	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
310	i = i + 1
311	ENDDO
312	j = 1
313	DO WHILE ( do_mask_user(mid,j) /= ' ' .AND. j <= 100 )
314	IF ( i > 100 ) THEN
315	WRITE ( message_string, * ) 'number of output quantitities ', &
316	'given by data_output_mask and data_output_mask_user ', &
317	'exceeds the limit of 100'
318	CALL message( 'init_masks', 'PA0329', 1, 2, 0, 6, 0 )
319	ENDIF
320	do_mask(mid,i) = do_mask_user(mid,j)
321	i = i + 1
322	j = j + 1
323	ENDDO
324	ENDIF
325
326	!
327	!-- Check and set steering parameters for mask data output and averaging
328	i = 1
329	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
330	!
331	!-- Check for data averaging
332	ilen = LEN_TRIM( do_mask(mid,i) )
333	j = 0 ! no data averaging
334	IF ( ilen > 3 ) THEN
335	IF ( do_mask(mid,i)(ilen-2:ilen) == '_av' ) THEN
336	j = 1 ! data averaging
337	do_mask(mid,i) = do_mask(mid,i)(1:ilen-3)
338	ENDIF
339	ENDIF
340	var = TRIM( do_mask(mid,i) )
341	!
342	!-- Check for allowed value and set units
343	SELECT CASE ( TRIM( var ) )
344
345	CASE ( 'e' )
346	IF ( constant_diffusion ) THEN
347	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
348	'" requires constant_diffusion = .FALSE.'
349	CALL message( 'init_masks', 'PA0103', 1, 2, 0, 6, 0 )
350	ENDIF
351	unit = 'm2/s2'
352
353	CASE ( 'thetal' )
354	IF ( .NOT. bulk_cloud_model ) THEN
355	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
356	'" requires bulk_cloud_model = .TRUE.'
357	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
358	ENDIF
359	unit = 'K'
360
361	CASE ( 'nc' )
362	IF ( .NOT. bulk_cloud_model ) THEN
363	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
364	'" requires bulk_cloud_model = .TRUE.'
365	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
366	ELSEIF ( .NOT. microphysics_morrison ) THEN
367	message_string = 'output of "' // TRIM( var ) // '" ' // &
368	'requires = morrison'
369	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
370	ENDIF
371	unit = '1/m3'
372
373	CASE ( 'nr' )
374	IF ( .NOT. bulk_cloud_model ) THEN
375	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
376	'" requires bulk_cloud_model = .TRUE.'
377	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
378	ELSEIF ( .NOT. microphysics_seifert ) THEN
379	message_string = 'output of "' // TRIM( var ) // '"' // &
380	'requires cloud_scheme = seifert_beheng'
381	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
382	ENDIF
383	unit = '1/m3'
384
385	CASE ( 'pc', 'pr' )
386	IF ( .NOT. particle_advection ) THEN
387	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
388	'" requires a "particles_par"-NAMELIST in the ', &
389	'parameter file (PARIN)'
390	CALL message( 'init_masks', 'PA0104', 1, 2, 0, 6, 0 )
391	ENDIF
392	IF ( TRIM( var ) == 'pc' ) unit = 'number'
393	IF ( TRIM( var ) == 'pr' ) unit = 'm'
394
395	CASE ( 'q', 'thetav' )
396	IF ( .NOT. humidity ) THEN
397	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
398	'" requires humidity = .TRUE.'
399	CALL message( 'init_masks', 'PA0105', 1, 2, 0, 6, 0 )
400	ENDIF
401	IF ( TRIM( var ) == 'q' ) unit = 'kg/kg'
402	IF ( TRIM( var ) == 'thetav' ) unit = 'K'
403
404	CASE ( 'qc' )
405	IF ( .NOT. bulk_cloud_model ) THEN
406	message_string = 'output of "' // TRIM( var ) // '"' // &
407	'requires bulk_cloud_model = .TRUE.'
408	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
409	ENDIF
410	unit = 'kg/kg'
411
412	CASE ( 'ql' )
413	IF ( .NOT. ( bulk_cloud_model .OR. cloud_droplets ) ) THEN
414	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
415	'" requires bulk_cloud_model = .TRUE. or ', &
416	'cloud_droplets = .TRUE.'
417	CALL message( 'init_masks', 'PA0106', 1, 2, 0, 6, 0 )
418	ENDIF
419	unit = 'kg/kg'
420
421	CASE ( 'ql_c', 'ql_v', 'ql_vp' )
422	IF ( .NOT. cloud_droplets ) THEN
423	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
424	'" requires cloud_droplets = .TRUE.'
425	CALL message( 'init_masks', 'PA0107', 1, 2, 0, 6, 0 )
426	ENDIF
427	IF ( TRIM( var ) == 'ql_c' ) unit = 'kg/kg'
428	IF ( TRIM( var ) == 'ql_v' ) unit = 'm3'
429	IF ( TRIM( var ) == 'ql_vp' ) unit = 'none'
430
431	CASE ( 'qv' )
432	IF ( .NOT. bulk_cloud_model ) THEN
433	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
434	'" requires bulk_cloud_model = .TRUE.'
435	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
436	ENDIF
437	unit = 'kg/kg'
438
439	CASE ( 'qr' )
440	IF ( .NOT. bulk_cloud_model ) THEN
441	message_string = 'output of "' // TRIM( var ) // '" ' // &
442	'requires bulk_cloud_model = .TRUE.'
443	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
444	ELSEIF ( .NOT. microphysics_seifert ) THEN
445	message_string = 'output of "' // TRIM( var ) // '" ' // &
446	'requires cloud_scheme = seifert_beheng'
447	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
448	ENDIF
449	unit = 'kg/kg'
450
451	CASE ( 'rho_sea_water' )
452	IF ( .NOT. ocean_mode ) THEN
453	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
454	'" requires ocean mode'
455	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
456	ENDIF
457	unit = 'kg/m3'
458
459	CASE ( 's' )
460	IF ( .NOT. passive_scalar ) THEN
461	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
462	'" requires passive_scalar = .TRUE.'
463	CALL message( 'init_masks', 'PA0110', 1, 2, 0, 6, 0 )
464	ENDIF
465	unit = 'conc'
466
467	CASE ( 'sa' )
468	IF ( .NOT. ocean_mode ) THEN
469	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
470	'" requires ocean mode'
471	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
472	ENDIF
473	unit = 'psu'
474
475	CASE ( 'us', 't', 'lwp', 'pra', 'prr', 'z0', 'z0h*' )
476	WRITE ( message_string, * ) 'illegal value for data_', &
477	'output: "', TRIM( var ), '" is only allowed', &
478	'for horizontal cross section'
479	CALL message( 'init_masks', 'PA0111', 1, 2, 0, 6, 0 )
480
481	CASE ( 'p', 'theta', 'u', 'v', 'w' )
482	IF ( TRIM( var ) == 'p' ) unit = 'Pa'
483	IF ( TRIM( var ) == 'theta' ) unit = 'K'
484	IF ( TRIM( var ) == 'u' ) unit = 'm/s'
485	IF ( TRIM( var ) == 'v' ) unit = 'm/s'
486	IF ( TRIM( var ) == 'w' ) unit = 'm/s'
487	CONTINUE
488
489	CASE DEFAULT
490
491	CALL user_check_data_output( var, unit )
492
493	IF ( salsa ) THEN
494	CALL salsa_check_data_output( var, unit )
495	ENDIF
496
497	IF ( unit == 'illegal' .AND. air_chemistry &
498	.AND. (var(1:3) == 'kc_' .OR. var(1:3) == 'em_') ) THEN
499	CALL chem_check_data_output( var, unit, 0, 0, 0 )
500	ENDIF
501
502	IF ( unit == 'illegal' ) THEN
503	CALL radiation_check_data_output( var, unit, 0, 0, 0 )
504	ENDIF
505
506	IF ( unit == 'illegal' ) THEN
507	IF ( do_mask_user(mid,1) /= ' ' ) THEN
508	WRITE ( message_string, * ) 'illegal value for data_', &
509	'output_masks or data_output_masks_user: "', &
510	TRIM( do_mask(mid,i) ), '"'
511	CALL message( 'init_masks', 'PA0018', 1, 2, 0, 6, 0 )
512	ELSE
513	WRITE ( message_string, * ) 'illegal value for data_', &
514	' output_masks : "', TRIM( do_mask(mid,i) ), '"'
515	CALL message( 'init_masks', 'PA0330', 1, 2, 0, 6, 0 )
516	ENDIF
517	ENDIF
518
519	END SELECT
520	!
521	!-- Set the internal steering parameters appropriately
522	domask_no(mid,j) = domask_no(mid,j) + 1
523	domask(mid,j,domask_no(mid,j)) = do_mask(mid,i)
524	domask_unit(mid,j,domask_no(mid,j)) = unit
525
526	IF ( j == 1 ) THEN
527	!
528	!-- Check, if variable is already subject to averaging
529	found = .FALSE.
530	DO k = 1, doav_n
531	IF ( TRIM( doav(k) ) == TRIM( var ) ) found = .TRUE.
532	ENDDO
533
534	IF ( .NOT. found ) THEN
535	doav_n = doav_n + 1
536	doav(doav_n) = var
537	ENDIF
538	ENDIF
539
540	i = i + 1
541
542	ENDDO ! do_mask(mid,i)
543	ENDDO ! mid
544
545
546	!
547	!-- Determine mask locations for each mask
548	DO mid = 1, masks
549	!
550	!-- Set local masks for each subdomain along all three dimensions
551	CALL set_mask_locations( 1, dx, 'dx', nx, 'nx', nxl, nxr )
552	CALL set_mask_locations( 2, dy, 'dy', ny, 'ny', nys, nyn )
553	IF ( .NOT. mask_surface(mid) ) THEN
554	CALL set_mask_locations( 3, dz(1), 'dz', nz, 'nz', nzb, nzt )
555	ELSE
556	!
557	!-- Set vertical mask locations and size in case of terrain-following
558	!-- output
559	count = 0
560	DO WHILE ( mask_k_over_surface(mid, count+1) >= 0 )
561	m = mask_k_over_surface(mid, count+1)
562	IF ( m > nz+1 ) THEN
563	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
564	m,' in mask ',mid,' along dimension ', 3, &
565	' exceeds (nz+1) = ',nz+1
566	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
567	ENDIF
568	count = count + 1
569	mask_k(mid,count) = mask_k_over_surface(mid, count)
570	IF ( count == mask_xyz_dimension ) EXIT
571	ENDDO
572	mask_start_l(mid,3) = 1
573	mask_size(mid,3) = count
574	mask_size_l(mid,3) = count
575	ENDIF
576	!
577	!-- Set global masks along all three dimensions (required by
578	!-- define_netcdf_header).
579	#if defined( __parallel )
580	!
581	!-- PE0 receives partial arrays from all processors of the respective mask
582	!-- and outputs them. Here a barrier has to be set, because otherwise
583	!-- "-MPI- FATAL: Remote protocol queue full" may occur.
584
585	CALL MPI_BARRIER( comm2d, ierr )
586
587	IF ( myid == 0 ) THEN
588	!
589	!-- Local arrays can be relocated directly.
590	mask_i_global(mid,mask_start_l(mid,1): &
591	mask_start_l(mid,1)+mask_size_l(mid,1)-1) = &
592	mask_i(mid,:mask_size_l(mid,1))
593	mask_j_global(mid,mask_start_l(mid,2): &
594	mask_start_l(mid,2)+mask_size_l(mid,2)-1) = &
595	mask_j(mid,:mask_size_l(mid,2))
596	mask_k_global(mid,mask_start_l(mid,3): &
597	mask_start_l(mid,3)+mask_size_l(mid,3)-1) = &
598	mask_k(mid,:mask_size_l(mid,3))
599	!
600	!-- Receive data from all other PEs.
601	DO n = 1, numprocs-1
602	!
603	!-- Receive index limits first, then arrays.
604	!-- Index limits are received in arbitrary order from the PEs.
605	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, &
606	comm2d, status, ierr )
607	!
608	!-- Not all PEs have data for the mask.
609	IF ( ind(1) /= -9999 ) THEN
610	sender = status(MPI_SOURCE)
611	CALL MPI_RECV( tmp_array(ind(1)), ind(2)-ind(1)+1, &
612	MPI_INTEGER, sender, 1, comm2d, status, ierr )
613	mask_i_global(mid,ind(1):ind(2)) = tmp_array(ind(1):ind(2))
614	CALL MPI_RECV( tmp_array(ind(3)), ind(4)-ind(3)+1, &
615	MPI_INTEGER, sender, 2, comm2d, status, ierr )
616	mask_j_global(mid,ind(3):ind(4)) = tmp_array(ind(3):ind(4))
617	CALL MPI_RECV( tmp_array(ind(5)), ind(6)-ind(5)+1, &
618	MPI_INTEGER, sender, 3, comm2d, status, ierr )
619	mask_k_global(mid,ind(5):ind(6)) = tmp_array(ind(5):ind(6))
620	ENDIF
621	ENDDO
622
623	ELSE
624	!
625	!-- If at least part of the mask resides on the PE, send the index limits
626	!-- for the target array, otherwise send -9999 to PE0.
627	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
628	mask_size_l(mid,3) > 0 ) THEN
629	ind(1) = mask_start_l(mid,1)
630	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
631	ind(3) = mask_start_l(mid,2)
632	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
633	ind(5) = mask_start_l(mid,3)
634	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
635	ELSE
636	ind(1) = -9999; ind(2) = -9999
637	ind(3) = -9999; ind(4) = -9999
638	ind(5) = -9999; ind(6) = -9999
639	ENDIF
640	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
641	!
642	!-- If applicable, send data to PE0.
643	IF ( ind(1) /= -9999 ) THEN
644	tmp_array(:mask_size_l(mid,1)) = mask_i(mid,:mask_size_l(mid,1))
645	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,1), &
646	MPI_INTEGER, 0, 1, comm2d, ierr )
647	tmp_array(:mask_size_l(mid,2)) = mask_j(mid,:mask_size_l(mid,2))
648	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,2), &
649	MPI_INTEGER, 0, 2, comm2d, ierr )
650	tmp_array(:mask_size_l(mid,3)) = mask_k(mid,:mask_size_l(mid,3))
651	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,3), &
652	MPI_INTEGER, 0, 3, comm2d, ierr )
653	ENDIF
654	ENDIF
655	!
656	!-- A barrier has to be set, because otherwise some PEs may proceed too fast
657	!-- so that PE0 may receive wrong data on tag 0.
658	CALL MPI_BARRIER( comm2d, ierr )
659
660	IF ( netcdf_data_format > 4 ) THEN
661
662	CALL MPI_BCAST( mask_i_global(mid,:), nx+2, MPI_INTEGER, 0, comm2d, &
663	ierr )
664	CALL MPI_BCAST( mask_j_global(mid,:), ny+2, MPI_INTEGER, 0, comm2d, &
665	ierr )
666	CALL MPI_BCAST( mask_k_global(mid,:), nz+2, MPI_INTEGER, 0, comm2d, &
667	ierr )
668
669	ENDIF
670
671	#else
672	!
673	!-- Local arrays can be relocated directly.
674	mask_i_global(mid,:) = mask_i(mid,:)
675	mask_j_global(mid,:) = mask_j(mid,:)
676	mask_k_global(mid,:) = mask_k(mid,:)
677	#endif
678	ENDDO ! mid
679
680	DEALLOCATE( tmp_array )
681	!
682	!-- Internal mask arrays cannot be deallocated on PE 0 because they are
683	!-- required for header output on PE 0.
684	IF ( myid /= 0 ) DEALLOCATE( mask, mask_loop )
685
686	CONTAINS
687
688	!------------------------------------------------------------------------------!
689	! Description:
690	! ------------
691	!> Set local mask for each subdomain along 'dim' direction.
692	!------------------------------------------------------------------------------!
693	SUBROUTINE set_mask_locations( dim, dxyz, dxyz_string, nxyz, nxyz_string, &
694	lb, ub )
695
696	IMPLICIT NONE
697
698	CHARACTER (LEN=2) :: dxyz_string !<
699	CHARACTER (LEN=2) :: nxyz_string !<
700
701	INTEGER(iwp) :: count !<
702	INTEGER(iwp) :: count_l !<
703	INTEGER(iwp) :: dim !<
704	INTEGER(iwp) :: m !<
705	INTEGER(iwp) :: loop_begin !<
706	INTEGER(iwp) :: loop_end !<
707	INTEGER(iwp) :: loop_stride !<
708	INTEGER(iwp) :: lb !<
709	INTEGER(iwp) :: nxyz !<
710	INTEGER(iwp) :: ub !<
711
712	REAL(wp) :: dxyz !<
713	REAL(wp) :: ddxyz !<
714	REAL(wp) :: tmp1 !<
715	REAL(wp) :: tmp2 !<
716
717	count = 0; count_l = 0
718	ddxyz = 1.0_wp / dxyz
719	tmp1 = 0.0_wp
720	tmp2 = 0.0_wp
721
722	IF ( mask(mid,dim,1) >= 0.0_wp ) THEN
723	!
724	!-- use predefined mask_* array
725	DO WHILE ( mask(mid,dim,count+1) >= 0.0_wp )
726	count = count + 1
727	IF ( dim == 1 .OR. dim == 2 ) THEN
728	m = NINT( mask(mid,dim,count) * mask_scale(dim) * ddxyz - 0.5_wp )
729	IF ( m < 0 ) m = 0 ! avoid negative values
730	ELSEIF ( dim == 3 ) THEN
731	ind_array = &
732	MINLOC( ABS( mask(mid,dim,count) * mask_scale(dim) - zu ) )
733	m = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
734	ENDIF
735	IF ( m > (nxyz+1) ) THEN
736	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
737	m,' in mask ',mid,' along dimension ',dim, &
738	' exceeds (',nxyz_string,'+1) = ',nxyz+1
739	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
740	ENDIF
741	IF ( ( m >= lb .AND. m <= ub ) .OR. &
742	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
743	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
744	count_l = count_l + 1
745	IF ( dim == 1 ) THEN
746	mask_i(mid,count_l) = m
747	ELSEIF ( dim == 2 ) THEN
748	mask_j(mid,count_l) = m
749	ELSEIF ( dim == 3 ) THEN
750	mask_k(mid,count_l) = m
751	ENDIF
752	ENDIF
753	IF ( count == mask_xyz_dimension ) EXIT
754	ENDDO
755	mask_size(mid,dim) = count
756	mask_size_l(mid,dim) = count_l
757
758	ELSE
759	!
760	!-- use predefined mask_loop_* array, or use the default (all grid points
761	!-- along this direction)
762	IF ( mask_loop(mid,dim,1) < 0.0_wp ) THEN
763	tmp1 = mask_loop(mid,dim,1)
764	mask_loop(mid,dim,1) = zw(nzb) ! lowest level (default)
765	ENDIF
766	IF ( dim == 1 .OR. dim == 2 ) THEN
767	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
768	tmp2 = mask_loop(mid,dim,2)
769	mask_loop(mid,dim,2) = nxyz*dxyz / mask_scale(dim) ! (default)
770	ENDIF
771	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
772	> (nxyz+1) * dxyz / mask_scale(dim) ) THEN
773	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),5A,I1,A,F9.3)' ) &
774	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
775	' and/or mask_loop(',mid,',',dim,',2)=', &
776	mask_loop(mid,dim,2),' exceed (', &
777	nxyz_string,'+1)*',dxyz_string,'/mask_scale(',dim,')=', &
778	(nxyz+1)*dxyz/mask_scale(dim)
779	CALL message( 'init_masks', 'PA0332', 1, 2, 0, 6, 0 )
780	ENDIF
781	loop_begin = NINT( mask_loop(mid,dim,1) * mask_scale(dim) &
782	* ddxyz - 0.5_wp )
783	loop_end = NINT( mask_loop(mid,dim,2) * mask_scale(dim) &
784	* ddxyz - 0.5_wp )
785	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) &
786	* ddxyz )
787	IF ( loop_begin == -1 ) loop_begin = 0 ! avoid negative values
788	ELSEIF ( dim == 3 ) THEN
789	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
790	tmp2 = mask_loop(mid,dim,2)
791	mask_loop(mid,dim,2) = zu(nz+1) / mask_scale(dim) ! (default)
792	ENDIF
793	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
794	> zu(nz+1) / mask_scale(dim) ) THEN
795	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),A,I1,A,F9.3)' ) &
796	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
797	' and/or mask_loop(',mid,',',dim,',2)=', &
798	mask_loop(mid,dim,2),' exceed zu(nz+1)/mask_scale(',dim, &
799	')=',zu(nz+1)/mask_scale(dim)
800	CALL message( 'init_masks', 'PA0333', 1, 2, 0, 6, 0 )
801	ENDIF
802	ind_array = &
803	MINLOC( ABS( mask_loop(mid,dim,1) * mask_scale(dim) - zu ) )
804	loop_begin = &
805	ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
806	ind_array = &
807	MINLOC( ABS( mask_loop(mid,dim,2) * mask_scale(dim) - zu ) )
808	loop_end = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
809	!
810	!-- The following line assumes a constant vertical grid spacing within
811	!-- the vertical mask range; it fails for vertical grid stretching.
812	!-- Maybe revise later. Issue warning but continue execution. ABS(...)
813	!-- within the IF statement is necessary because the default value of
814	!-- dz_stretch_level_start is -9999999.9_wp.
815	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) * ddxyz )
816
817	IF ( mask_loop(mid,dim,2) * mask_scale(dim) > &
818	ABS( dz_stretch_level_start(1) ) ) THEN
819	WRITE ( message_string, '(A,I3,A,I1,A,F9.3,A,F8.2,3A)' ) &
820	'mask_loop(',mid,',',dim,',2)=', mask_loop(mid,dim,2), &
821	' exceeds dz_stretch_level=',dz_stretch_level_start(1), &
822	'.&Vertical mask locations will not ', &
823	'match the desired heights within the stretching ', &
824	'region.'
825	CALL message( 'init_masks', 'PA0334', 0, 1, 0, 6, 0 )
826	ENDIF
827
828	ENDIF
829	!
830	!-- If necessary, reset mask_loop(mid,dim,1) and mask_loop(mid,dim,2).
831	IF ( tmp1 < 0.0_wp ) mask_loop(mid,dim,1) = tmp1
832	IF ( tmp2 < 0.0_wp ) mask_loop(mid,dim,2) = tmp2
833	!
834	!-- The default stride +/-1 (every grid point) applies if
835	!-- mask_loop(mid,dim,3) is not specified (its default is zero).
836	IF ( loop_stride == 0 ) THEN
837	IF ( loop_end >= loop_begin ) THEN
838	loop_stride = 1
839	ELSE
840	loop_stride = -1
841	ENDIF
842	ENDIF
843	DO m = loop_begin, loop_end, loop_stride
844	count = count + 1
845	IF ( ( m >= lb .AND. m <= ub ) .OR. &
846	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
847	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
848	count_l = count_l + 1
849	IF ( dim == 1 ) THEN
850	mask_i(mid,count_l) = m
851	ELSEIF ( dim == 2 ) THEN
852	mask_j(mid,count_l) = m
853	ELSEIF ( dim == 3 ) THEN
854	mask_k(mid,count_l) = m
855	ENDIF
856	ENDIF
857	ENDDO
858	mask_size(mid,dim) = count
859	mask_size_l(mid,dim) = count_l
860
861	ENDIF
862
863	END SUBROUTINE set_mask_locations
864
865	END SUBROUTINE init_masks

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