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source: palm/trunk/SOURCE/init_masks.f90 @ 3559

Last change on this file since 3559 was 3554, checked in by gronemeier, 6 years ago
renamed variable if to ivar; add variable description
Property svn:keywords set to `Id`
File size: 34.8 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 3554 2018-11-22 11:24:52Z knoop $
27	! add variable description
28	!
29	! 3512 2018-11-09 18:09:51Z gronemeier
30	! Bugfix: do not output ghost points if mask_x/y_loop is not specified
31	!
32	! 3467 2018-10-30 19:05:21Z suehring
33	! Implementation of a new aerosol module salsa.
34	!
35	! 3435 2018-10-26 18:25:44Z gronemeier
36	! Add checks for chemistry and radiation model
37	! Set indices for terrain-following masked output
38	!
39	! 3421 2018-10-24 18:39:32Z gronemeier
40	! Renamed output variables
41	!
42	! 3419 2018-10-24 17:27:31Z gronemeier
43	! ocean renamed ocean_mode
44	!
45	! 3274 2018-09-24 15:42:55Z knoop
46	! Modularization of all bulk cloud physics code components
47	!
48	! 3065 2018-06-12 07:03:02Z Giersch
49	! dz_stretch_level was replaced by dz_stretch_level_start
50	!
51	! 3049 2018-05-29 13:52:36Z Giersch
52	! Error messages revised
53	!
54	! 3045 2018-05-28 07:55:41Z Giersch
55	! Error messages revised
56	!
57	! 2718 2018-01-02 08:49:38Z maronga
58	! Corrected "Former revisions" section
59	!
60	! 2696 2017-12-14 17:12:51Z kanani
61	! Change in file header (GPL part)
62	!
63	! 2344 2017-08-09 11:00:34Z raasch
64	! explicit setting of initial values for array domask required due to a bug
65	! in the Cray compiler (appears only if option -eD is used)
66	!
67	! 2301 2017-06-29 16:41:21Z gronemeier
68	! Bugfix: set variable name length to global value
69	!
70	!
71	! Implementation of new microphysic scheme: cloud_scheme = 'morrison'
72	! includes two more prognostic equations for cloud drop concentration (nc)
73	! and cloud water content (qc).
74	!
75	! 2271 2017-06-09 12:34:55Z sward
76	! Changed error message
77	!
78	! 2101 2017-01-05 16:42:31Z suehring
79	!
80	! 2031 2016-10-21 15:11:58Z knoop
81	! renamed variable rho to rho_ocean
82	!
83	! 2000 2016-08-20 18:09:15Z knoop
84	! Forced header and separation lines into 80 columns
85	!
86	! 1822 2016-04-07 07:49:42Z hoffmann
87	! icloud_scheme replaced by microphysics_*
88	!
89	! 1804 2016-04-05 16:30:18Z maronga
90	! Removed code for parameter file check (__check)
91	!
92	! 1783 2016-03-06 18:36:17Z raasch
93	! netcdf module name changed + related changes
94	!
95	! 1682 2015-10-07 23:56:08Z knoop
96	! Code annotations made doxygen readable
97	!
98	! 1438 2014-07-22 14:14:06Z heinze
99	! +nr, qc, qr
100	!
101	! 1414 2014-05-31 11:19:48Z gronemeier
102	! Bugfix: first and last grid points as they appear in 3D volume data can now
103	! be included to masked data output
104	!
105	! 1353 2014-04-08 15:21:23Z heinze
106	! REAL constants provided with KIND-attribute
107	!
108	! 1324 2014-03-21 09:13:16Z suehring
109	! Bugfix: ONLY statement for module netcdf_control removed
110	!
111	! 1320 2014-03-20 08:40:49Z raasch
112	! ONLY-attribute added to USE-statements,
113	! kind-parameters added to all INTEGER and REAL declaration statements,
114	! kinds are defined in new module kinds,
115	! revision history before 2012 removed,
116	! comment fields (!:) to be used for variable explanations added to
117	! all variable declaration statements
118	!
119	! 1186 2013-06-18 06:22:52Z raasch
120	! bugfix: 0.0 replaced by zu(nzb) as the lowest default height level for masks,
121	! because a zero value does not work in case of ocean runs
122	!
123	! 1036 2012-10-22 13:43:42Z raasch
124	! code put under GPL (PALM 3.9)
125	!
126	! 1032 2012-10-21 13:03:21Z letzel
127	! mask locations determined based on scalar positions
128	!
129	! 1031 2012-10-19 14:35:30Z raasch
130	! netCDF4 without parallel file support implemented
131	!
132	! 996 2012-09-07 10:41:47Z raasch
133	! little reformatting
134	!
135	! 978 2012-08-09 08:28:32Z fricke
136	! +z0h*
137	!
138	! 809 2012-01-30 13:32:58Z maronga
139	! Bugfix: replaced .AND. and .NOT. with && and ! in the preprocessor directives
140	!
141	! 807 2012-01-25 11:53:51Z maronga
142	! New cpp directive "__check" implemented which is used by check_namelist_files
143	!
144	! 410 2009-12-04 17:05:40Z letzel
145	! Initial revision
146	!
147	!
148	! Description:
149	! ------------
150	!> Initialize masked data output
151	!------------------------------------------------------------------------------!
152	SUBROUTINE init_masks
153
154	USE arrays_3d, &
155	ONLY: zu, zw
156
157	USE bulk_cloud_model_mod, &
158	ONLY: bulk_cloud_model, microphysics_morrison, microphysics_seifert
159
160	USE chemistry_model_mod, &
161	ONLY: chem_check_data_output
162
163	USE control_parameters, &
164	ONLY: air_chemistry, &
165	constant_diffusion, cloud_droplets, &
166	data_output_masks, data_output_masks_user, &
167	doav, doav_n, domask, domask_no, dz, dz_stretch_level_start, &
168	humidity, mask, masks, mask_scale, mask_i, &
169	mask_i_global, mask_j, mask_j_global, mask_k, mask_k_global, &
170	mask_k_over_surface, &
171	mask_loop, mask_size, mask_size_l, mask_start_l, &
172	mask_surface, mask_x, &
173	mask_x_loop, mask_xyz_dimension, mask_y, mask_y_loop, mask_z, &
174	mask_z_loop, max_masks, message_string, mid, &
175	passive_scalar, ocean_mode, varnamelength
176
177	USE grid_variables, &
178	ONLY: dx, dy
179
180	USE indices, &
181	ONLY: nx, nxl, nxr, ny, nyn, nys, nz, nzb, nzt
182
183	USE kinds
184
185	USE netcdf_interface, &
186	ONLY: domask_unit, netcdf_data_format
187
188	USE particle_attributes, &
189	ONLY: particle_advection
190
191	USE pegrid
192
193	USE radiation_model_mod, &
194	ONLY: radiation, radiation_check_data_output
195
196	USE salsa_mod, &
197	ONLY: salsa, salsa_check_data_output
198
199	IMPLICIT NONE
200
201	CHARACTER (LEN=varnamelength) :: var !< contains variable name
202	CHARACTER (LEN=7) :: unit !< contains unit of variable
203
204	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask !< list of output variables
205	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask_user !< list of user-specified output variables
206
207	INTEGER(iwp) :: count !< counting masking indices along a dimension
208	INTEGER(iwp) :: i !< loop index
209	INTEGER(iwp) :: ilen !< length of string saved in 'do_mask'
210	INTEGER(iwp) :: ind(6) !< index limits (lower/upper bounds) of output array
211	INTEGER(iwp) :: ind_array(1) !< array index
212	INTEGER(iwp) :: j !< loop index
213	INTEGER(iwp) :: k !< loop index
214	INTEGER(iwp) :: m !< mask index
215	INTEGER(iwp) :: n !< loop index
216	INTEGER(iwp) :: sender !< PE id of sending PE
217
218	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: tmp_array !< temporary 1D array
219
220	LOGICAL :: found !< true if variable is found
221
222	!
223	!-- Initial values are explicitly set here due to a bug in the Cray compiler
224	!-- in case of assignments of initial values in declaration statements for
225	!-- arrays with more than 9999 elements (appears with -eD only)
226	domask = ' '
227
228	!
229	!-- Allocation and initialization
230	ALLOCATE( tmp_array( MAX(nx,ny,nz)+2 ) )
231
232	ALLOCATE( mask_i(max_masks,nxr-nxl+2), &
233	mask_j(max_masks,nyn-nys+2), &
234	mask_k(max_masks,nzt-nzb+2) )
235	!
236	!-- internal mask arrays ("mask,dimension,selection")
237	ALLOCATE( mask(max_masks,3,mask_xyz_dimension), &
238	mask_loop(max_masks,3,3) )
239
240	!
241	!-- Parallel mask output not yet supported. In check_parameters data format
242	!-- is restricted and is switched back to non-parallel output. Therefore the
243	!-- following error can not occur at the moment.
244	IF ( netcdf_data_format > 4 ) THEN
245	message_string = 'netCDF file formats '// &
246	'5 and 6 (with parallel I/O support)'// &
247	' are currently not supported.'
248	CALL message( 'init_masks', 'PA0328', 1, 2, 0, 6, 0 )
249	ENDIF
250
251	!
252	!-- Store data output parameters for masked data output in few shared arrays
253	DO mid = 1, masks
254
255	do_mask (mid,:) = data_output_masks(mid,:)
256	do_mask_user(mid,:) = data_output_masks_user(mid,:)
257	mask (mid,1,:) = mask_x(mid,:)
258	mask (mid,2,:) = mask_y(mid,:)
259	mask (mid,3,:) = mask_z(mid,:)
260	!
261	!-- Flag a mask as terrain following
262	IF ( mask_k_over_surface(mid,1) /= -1_iwp ) THEN
263	mask_surface(mid) = .TRUE.
264	ENDIF
265
266	IF ( mask_x_loop(mid,1) == -1.0_wp .AND. mask_x_loop(mid,2) == -1.0_wp&
267	.AND. mask_x_loop(mid,3) == -1.0_wp ) THEN
268	mask_loop(mid,1,1:2) = -1.0_wp
269	mask_loop(mid,1,3) = 0.0_wp
270	ELSE
271	mask_loop(mid,1,:) = mask_x_loop(mid,:)
272	ENDIF
273	IF ( mask_y_loop(mid,1) == -1.0_wp .AND. mask_y_loop(mid,2) == -1.0_wp&
274	.AND. mask_y_loop(mid,3) == -1.0_wp ) THEN
275	mask_loop(mid,2,1:2) = -1.0_wp
276	mask_loop(mid,2,3) = 0.0_wp
277	ELSE
278	mask_loop(mid,2,:) = mask_y_loop(mid,:)
279	ENDIF
280	IF ( mask_z_loop(mid,1) == -1.0_wp .AND. mask_z_loop(mid,2) == -1.0_wp&
281	.AND. mask_z_loop(mid,3) == -1.0_wp ) THEN
282	mask_loop(mid,3,1:2) = -1.0_wp
283	mask_loop(mid,3,3) = 0.0_wp
284	ELSE
285	mask_loop(mid,3,:) = mask_z_loop(mid,:)
286	ENDIF
287
288	ENDDO
289
290	mask_i = -1; mask_j = -1; mask_k = -1
291
292	!
293	!-- Global arrays are required by define_netcdf_header.
294	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
295	ALLOCATE( mask_i_global(max_masks,nx+2), &
296	mask_j_global(max_masks,ny+2), &
297	mask_k_global(max_masks,nz+2) )
298	mask_i_global = -1; mask_j_global = -1; mask_k_global = -1
299	ENDIF
300
301	!
302	!-- Determine variable names for each mask
303	DO mid = 1, masks
304	!
305	!-- Append user-defined data output variables to the standard data output
306	IF ( do_mask_user(mid,1) /= ' ' ) THEN
307	i = 1
308	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
309	i = i + 1
310	ENDDO
311	j = 1
312	DO WHILE ( do_mask_user(mid,j) /= ' ' .AND. j <= 100 )
313	IF ( i > 100 ) THEN
314	WRITE ( message_string, * ) 'number of output quantitities ', &
315	'given by data_output_mask and data_output_mask_user ', &
316	'exceeds the limit of 100'
317	CALL message( 'init_masks', 'PA0329', 1, 2, 0, 6, 0 )
318	ENDIF
319	do_mask(mid,i) = do_mask_user(mid,j)
320	i = i + 1
321	j = j + 1
322	ENDDO
323	ENDIF
324
325	!
326	!-- Check and set steering parameters for mask data output and averaging
327	i = 1
328	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
329	!
330	!-- Check for data averaging
331	ilen = LEN_TRIM( do_mask(mid,i) )
332	j = 0 ! no data averaging
333	IF ( ilen > 3 ) THEN
334	IF ( do_mask(mid,i)(ilen-2:ilen) == '_av' ) THEN
335	j = 1 ! data averaging
336	do_mask(mid,i) = do_mask(mid,i)(1:ilen-3)
337	ENDIF
338	ENDIF
339	var = TRIM( do_mask(mid,i) )
340	!
341	!-- Check for allowed value and set units
342	SELECT CASE ( TRIM( var ) )
343
344	CASE ( 'e' )
345	IF ( constant_diffusion ) THEN
346	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
347	'" requires constant_diffusion = .FALSE.'
348	CALL message( 'init_masks', 'PA0103', 1, 2, 0, 6, 0 )
349	ENDIF
350	unit = 'm2/s2'
351
352	CASE ( 'thetal' )
353	IF ( .NOT. bulk_cloud_model ) THEN
354	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
355	'" requires bulk_cloud_model = .TRUE.'
356	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
357	ENDIF
358	unit = 'K'
359
360	CASE ( 'nc' )
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	ELSEIF ( .NOT. microphysics_morrison ) THEN
366	message_string = 'output of "' // TRIM( var ) // '" ' // &
367	'requires = morrison'
368	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
369	ENDIF
370	unit = '1/m3'
371
372	CASE ( 'nr' )
373	IF ( .NOT. bulk_cloud_model ) THEN
374	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
375	'" requires bulk_cloud_model = .TRUE.'
376	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
377	ELSEIF ( .NOT. microphysics_seifert ) THEN
378	message_string = 'output of "' // TRIM( var ) // '"' // &
379	'requires cloud_scheme = seifert_beheng'
380	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
381	ENDIF
382	unit = '1/m3'
383
384	CASE ( 'pc', 'pr' )
385	IF ( .NOT. particle_advection ) THEN
386	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
387	'" requires a "particles_par"-NAMELIST in the ', &
388	'parameter file (PARIN)'
389	CALL message( 'init_masks', 'PA0104', 1, 2, 0, 6, 0 )
390	ENDIF
391	IF ( TRIM( var ) == 'pc' ) unit = 'number'
392	IF ( TRIM( var ) == 'pr' ) unit = 'm'
393
394	CASE ( 'q', 'thetav' )
395	IF ( .NOT. humidity ) THEN
396	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
397	'" requires humidity = .TRUE.'
398	CALL message( 'init_masks', 'PA0105', 1, 2, 0, 6, 0 )
399	ENDIF
400	IF ( TRIM( var ) == 'q' ) unit = 'kg/kg'
401	IF ( TRIM( var ) == 'thetav' ) unit = 'K'
402
403	CASE ( 'qc' )
404	IF ( .NOT. bulk_cloud_model ) THEN
405	message_string = 'output of "' // TRIM( var ) // '"' // &
406	'requires bulk_cloud_model = .TRUE.'
407	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
408	ENDIF
409	unit = 'kg/kg'
410
411	CASE ( 'ql' )
412	IF ( .NOT. ( bulk_cloud_model .OR. cloud_droplets ) ) THEN
413	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
414	'" requires bulk_cloud_model = .TRUE. or ', &
415	'cloud_droplets = .TRUE.'
416	CALL message( 'init_masks', 'PA0106', 1, 2, 0, 6, 0 )
417	ENDIF
418	unit = 'kg/kg'
419
420	CASE ( 'ql_c', 'ql_v', 'ql_vp' )
421	IF ( .NOT. cloud_droplets ) THEN
422	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
423	'" requires cloud_droplets = .TRUE.'
424	CALL message( 'init_masks', 'PA0107', 1, 2, 0, 6, 0 )
425	ENDIF
426	IF ( TRIM( var ) == 'ql_c' ) unit = 'kg/kg'
427	IF ( TRIM( var ) == 'ql_v' ) unit = 'm3'
428	IF ( TRIM( var ) == 'ql_vp' ) unit = 'none'
429
430	CASE ( 'qv' )
431	IF ( .NOT. bulk_cloud_model ) THEN
432	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
433	'" requires bulk_cloud_model = .TRUE.'
434	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
435	ENDIF
436	unit = 'kg/kg'
437
438	CASE ( 'qr' )
439	IF ( .NOT. bulk_cloud_model ) THEN
440	message_string = 'output of "' // TRIM( var ) // '" ' // &
441	'requires bulk_cloud_model = .TRUE.'
442	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
443	ELSEIF ( .NOT. microphysics_seifert ) THEN
444	message_string = 'output of "' // TRIM( var ) // '" ' // &
445	'requires cloud_scheme = seifert_beheng'
446	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
447	ENDIF
448	unit = 'kg/kg'
449
450	CASE ( 'rho_sea_water' )
451	IF ( .NOT. ocean_mode ) THEN
452	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
453	'" requires ocean mode'
454	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
455	ENDIF
456	unit = 'kg/m3'
457
458	CASE ( 's' )
459	IF ( .NOT. passive_scalar ) THEN
460	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
461	'" requires passive_scalar = .TRUE.'
462	CALL message( 'init_masks', 'PA0110', 1, 2, 0, 6, 0 )
463	ENDIF
464	unit = 'conc'
465
466	CASE ( 'sa' )
467	IF ( .NOT. ocean_mode ) THEN
468	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
469	'" requires ocean mode'
470	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
471	ENDIF
472	unit = 'psu'
473
474	CASE ( 'us', 't', 'lwp', 'pra', 'prr', 'z0', 'z0h*' )
475	WRITE ( message_string, * ) 'illegal value for data_', &
476	'output: "', TRIM( var ), '" is only allowed', &
477	'for horizontal cross section'
478	CALL message( 'init_masks', 'PA0111', 1, 2, 0, 6, 0 )
479
480	CASE ( 'p', 'theta', 'u', 'v', 'w' )
481	IF ( TRIM( var ) == 'p' ) unit = 'Pa'
482	IF ( TRIM( var ) == 'theta' ) unit = 'K'
483	IF ( TRIM( var ) == 'u' ) unit = 'm/s'
484	IF ( TRIM( var ) == 'v' ) unit = 'm/s'
485	IF ( TRIM( var ) == 'w' ) unit = 'm/s'
486	CONTINUE
487
488	CASE DEFAULT
489
490	CALL user_check_data_output( var, unit )
491
492	IF ( salsa ) THEN
493	CALL salsa_check_data_output( var, unit )
494	ENDIF
495
496	IF ( unit == 'illegal' .AND. air_chemistry &
497	.AND. (var(1:3) == 'kc_' .OR. var(1:3) == 'em_') ) THEN
498	CALL chem_check_data_output( var, unit, 0, 0, 0 )
499	ENDIF
500
501	IF ( unit == 'illegal' ) THEN
502	CALL radiation_check_data_output( var, unit, 0, 0, 0 )
503	ENDIF
504
505	IF ( unit == 'illegal' ) THEN
506	IF ( do_mask_user(mid,1) /= ' ' ) THEN
507	WRITE ( message_string, * ) 'illegal value for data_', &
508	'output_masks or data_output_masks_user: "', &
509	TRIM( do_mask(mid,i) ), '"'
510	CALL message( 'init_masks', 'PA0018', 1, 2, 0, 6, 0 )
511	ELSE
512	WRITE ( message_string, * ) 'illegal value for data_', &
513	' output_masks : "', TRIM( do_mask(mid,i) ), '"'
514	CALL message( 'init_masks', 'PA0330', 1, 2, 0, 6, 0 )
515	ENDIF
516	ENDIF
517
518	END SELECT
519	!
520	!-- Set the internal steering parameters appropriately
521	domask_no(mid,j) = domask_no(mid,j) + 1
522	domask(mid,j,domask_no(mid,j)) = do_mask(mid,i)
523	domask_unit(mid,j,domask_no(mid,j)) = unit
524
525	IF ( j == 1 ) THEN
526	!
527	!-- Check, if variable is already subject to averaging
528	found = .FALSE.
529	DO k = 1, doav_n
530	IF ( TRIM( doav(k) ) == TRIM( var ) ) found = .TRUE.
531	ENDDO
532
533	IF ( .NOT. found ) THEN
534	doav_n = doav_n + 1
535	doav(doav_n) = var
536	ENDIF
537	ENDIF
538
539	i = i + 1
540
541	ENDDO ! do_mask(mid,i)
542	ENDDO ! mid
543
544
545	!
546	!-- Determine mask locations for each mask
547	DO mid = 1, masks
548	!
549	!-- Set local masks for each subdomain along all three dimensions
550	CALL set_mask_locations( 1, dx, 'dx', nx, 'nx', nxl, nxr )
551	CALL set_mask_locations( 2, dy, 'dy', ny, 'ny', nys, nyn )
552	IF ( .NOT. mask_surface(mid) ) THEN
553	CALL set_mask_locations( 3, dz(1), 'dz', nz, 'nz', nzb, nzt )
554	ELSE
555	!
556	!-- Set vertical mask locations and size in case of terrain-following
557	!-- output
558	count = 0
559	DO WHILE ( mask_k_over_surface(mid, count+1) >= 0 )
560	m = mask_k_over_surface(mid, count+1)
561	IF ( m > nz+1 ) THEN
562	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
563	m,' in mask ',mid,' along dimension ', 3, &
564	' exceeds (nz+1) = ',nz+1
565	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
566	ENDIF
567	count = count + 1
568	mask_k(mid,count) = mask_k_over_surface(mid, count)
569	IF ( count == mask_xyz_dimension ) EXIT
570	ENDDO
571	mask_start_l(mid,3) = 1
572	mask_size(mid,3) = count
573	mask_size_l(mid,3) = count
574	ENDIF
575	!
576	!-- Set global masks along all three dimensions (required by
577	!-- define_netcdf_header).
578	#if defined( __parallel )
579	!
580	!-- PE0 receives partial arrays from all processors of the respective mask
581	!-- and outputs them. Here a barrier has to be set, because otherwise
582	!-- "-MPI- FATAL: Remote protocol queue full" may occur.
583
584	CALL MPI_BARRIER( comm2d, ierr )
585
586	IF ( myid == 0 ) THEN
587	!
588	!-- Local arrays can be relocated directly.
589	mask_i_global(mid,mask_start_l(mid,1): &
590	mask_start_l(mid,1)+mask_size_l(mid,1)-1) = &
591	mask_i(mid,:mask_size_l(mid,1))
592	mask_j_global(mid,mask_start_l(mid,2): &
593	mask_start_l(mid,2)+mask_size_l(mid,2)-1) = &
594	mask_j(mid,:mask_size_l(mid,2))
595	mask_k_global(mid,mask_start_l(mid,3): &
596	mask_start_l(mid,3)+mask_size_l(mid,3)-1) = &
597	mask_k(mid,:mask_size_l(mid,3))
598	!
599	!-- Receive data from all other PEs.
600	DO n = 1, numprocs-1
601	!
602	!-- Receive index limits first, then arrays.
603	!-- Index limits are received in arbitrary order from the PEs.
604	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, &
605	comm2d, status, ierr )
606	!
607	!-- Not all PEs have data for the mask.
608	IF ( ind(1) /= -9999 ) THEN
609	sender = status(MPI_SOURCE)
610	CALL MPI_RECV( tmp_array(ind(1)), ind(2)-ind(1)+1, &
611	MPI_INTEGER, sender, 1, comm2d, status, ierr )
612	mask_i_global(mid,ind(1):ind(2)) = tmp_array(ind(1):ind(2))
613	CALL MPI_RECV( tmp_array(ind(3)), ind(4)-ind(3)+1, &
614	MPI_INTEGER, sender, 2, comm2d, status, ierr )
615	mask_j_global(mid,ind(3):ind(4)) = tmp_array(ind(3):ind(4))
616	CALL MPI_RECV( tmp_array(ind(5)), ind(6)-ind(5)+1, &
617	MPI_INTEGER, sender, 3, comm2d, status, ierr )
618	mask_k_global(mid,ind(5):ind(6)) = tmp_array(ind(5):ind(6))
619	ENDIF
620	ENDDO
621
622	ELSE
623	!
624	!-- If at least part of the mask resides on the PE, send the index limits
625	!-- for the target array, otherwise send -9999 to PE0.
626	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
627	mask_size_l(mid,3) > 0 ) THEN
628	ind(1) = mask_start_l(mid,1)
629	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
630	ind(3) = mask_start_l(mid,2)
631	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
632	ind(5) = mask_start_l(mid,3)
633	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
634	ELSE
635	ind(1) = -9999; ind(2) = -9999
636	ind(3) = -9999; ind(4) = -9999
637	ind(5) = -9999; ind(6) = -9999
638	ENDIF
639	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
640	!
641	!-- If applicable, send data to PE0.
642	IF ( ind(1) /= -9999 ) THEN
643	tmp_array(:mask_size_l(mid,1)) = mask_i(mid,:mask_size_l(mid,1))
644	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,1), &
645	MPI_INTEGER, 0, 1, comm2d, ierr )
646	tmp_array(:mask_size_l(mid,2)) = mask_j(mid,:mask_size_l(mid,2))
647	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,2), &
648	MPI_INTEGER, 0, 2, comm2d, ierr )
649	tmp_array(:mask_size_l(mid,3)) = mask_k(mid,:mask_size_l(mid,3))
650	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,3), &
651	MPI_INTEGER, 0, 3, comm2d, ierr )
652	ENDIF
653	ENDIF
654	!
655	!-- A barrier has to be set, because otherwise some PEs may proceed too fast
656	!-- so that PE0 may receive wrong data on tag 0.
657	CALL MPI_BARRIER( comm2d, ierr )
658
659	IF ( netcdf_data_format > 4 ) THEN
660
661	CALL MPI_BCAST( mask_i_global(mid,:), nx+2, MPI_INTEGER, 0, comm2d, &
662	ierr )
663	CALL MPI_BCAST( mask_j_global(mid,:), ny+2, MPI_INTEGER, 0, comm2d, &
664	ierr )
665	CALL MPI_BCAST( mask_k_global(mid,:), nz+2, MPI_INTEGER, 0, comm2d, &
666	ierr )
667
668	ENDIF
669
670	#else
671	!
672	!-- Local arrays can be relocated directly.
673	mask_i_global(mid,:) = mask_i(mid,:)
674	mask_j_global(mid,:) = mask_j(mid,:)
675	mask_k_global(mid,:) = mask_k(mid,:)
676	#endif
677	ENDDO ! mid
678
679	DEALLOCATE( tmp_array )
680	!
681	!-- Internal mask arrays cannot be deallocated on PE 0 because they are
682	!-- required for header output on PE 0.
683	IF ( myid /= 0 ) DEALLOCATE( mask, mask_loop )
684
685	CONTAINS
686
687	!------------------------------------------------------------------------------!
688	! Description:
689	! ------------
690	!> Set local mask for each subdomain along 'dim' direction.
691	!------------------------------------------------------------------------------!
692	SUBROUTINE set_mask_locations( dim, dxyz, dxyz_string, nxyz, nxyz_string, &
693	lb, ub )
694
695	IMPLICIT NONE
696
697	CHARACTER (LEN=2) :: dxyz_string !<
698	CHARACTER (LEN=2) :: nxyz_string !<
699
700	INTEGER(iwp) :: count !<
701	INTEGER(iwp) :: count_l !<
702	INTEGER(iwp) :: dim !<
703	INTEGER(iwp) :: m !<
704	INTEGER(iwp) :: loop_begin !<
705	INTEGER(iwp) :: loop_end !<
706	INTEGER(iwp) :: loop_stride !<
707	INTEGER(iwp) :: lb !<
708	INTEGER(iwp) :: nxyz !<
709	INTEGER(iwp) :: ub !<
710
711	REAL(wp) :: dxyz !<
712	REAL(wp) :: ddxyz !<
713	REAL(wp) :: tmp1 !<
714	REAL(wp) :: tmp2 !<
715
716	count = 0; count_l = 0
717	ddxyz = 1.0_wp / dxyz
718	tmp1 = 0.0_wp
719	tmp2 = 0.0_wp
720
721	IF ( mask(mid,dim,1) >= 0.0_wp ) THEN
722	!
723	!-- use predefined mask_* array
724	DO WHILE ( mask(mid,dim,count+1) >= 0.0_wp )
725	count = count + 1
726	IF ( dim == 1 .OR. dim == 2 ) THEN
727	m = NINT( mask(mid,dim,count) * mask_scale(dim) * ddxyz - 0.5_wp )
728	IF ( m < 0 ) m = 0 ! avoid negative values
729	ELSEIF ( dim == 3 ) THEN
730	ind_array = &
731	MINLOC( ABS( mask(mid,dim,count) * mask_scale(dim) - zu ) )
732	m = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
733	ENDIF
734	IF ( m > (nxyz+1) ) THEN
735	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
736	m,' in mask ',mid,' along dimension ',dim, &
737	' exceeds (',nxyz_string,'+1) = ',nxyz+1
738	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
739	ENDIF
740	IF ( ( m >= lb .AND. m <= ub ) .OR. &
741	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
742	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
743	count_l = count_l + 1
744	IF ( dim == 1 ) THEN
745	mask_i(mid,count_l) = m
746	ELSEIF ( dim == 2 ) THEN
747	mask_j(mid,count_l) = m
748	ELSEIF ( dim == 3 ) THEN
749	mask_k(mid,count_l) = m
750	ENDIF
751	ENDIF
752	IF ( count == mask_xyz_dimension ) EXIT
753	ENDDO
754	mask_size(mid,dim) = count
755	mask_size_l(mid,dim) = count_l
756
757	ELSE
758	!
759	!-- use predefined mask_loop_* array, or use the default (all grid points
760	!-- along this direction)
761	IF ( mask_loop(mid,dim,1) < 0.0_wp ) THEN
762	tmp1 = mask_loop(mid,dim,1)
763	mask_loop(mid,dim,1) = zw(nzb) ! lowest level (default)
764	ENDIF
765	IF ( dim == 1 .OR. dim == 2 ) THEN
766	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
767	tmp2 = mask_loop(mid,dim,2)
768	mask_loop(mid,dim,2) = nxyz*dxyz / mask_scale(dim) ! (default)
769	ENDIF
770	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
771	> (nxyz+1) * dxyz / mask_scale(dim) ) THEN
772	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),5A,I1,A,F9.3)' ) &
773	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
774	' and/or mask_loop(',mid,',',dim,',2)=', &
775	mask_loop(mid,dim,2),' exceed (', &
776	nxyz_string,'+1)*',dxyz_string,'/mask_scale(',dim,')=', &
777	(nxyz+1)*dxyz/mask_scale(dim)
778	CALL message( 'init_masks', 'PA0332', 1, 2, 0, 6, 0 )
779	ENDIF
780	loop_begin = NINT( mask_loop(mid,dim,1) * mask_scale(dim) &
781	* ddxyz - 0.5_wp )
782	loop_end = NINT( mask_loop(mid,dim,2) * mask_scale(dim) &
783	* ddxyz - 0.5_wp )
784	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) &
785	* ddxyz )
786	IF ( loop_begin == -1 ) loop_begin = 0 ! avoid negative values
787	ELSEIF ( dim == 3 ) THEN
788	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
789	tmp2 = mask_loop(mid,dim,2)
790	mask_loop(mid,dim,2) = zu(nz+1) / mask_scale(dim) ! (default)
791	ENDIF
792	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
793	> zu(nz+1) / mask_scale(dim) ) THEN
794	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),A,I1,A,F9.3)' ) &
795	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
796	' and/or mask_loop(',mid,',',dim,',2)=', &
797	mask_loop(mid,dim,2),' exceed zu(nz+1)/mask_scale(',dim, &
798	')=',zu(nz+1)/mask_scale(dim)
799	CALL message( 'init_masks', 'PA0333', 1, 2, 0, 6, 0 )
800	ENDIF
801	ind_array = &
802	MINLOC( ABS( mask_loop(mid,dim,1) * mask_scale(dim) - zu ) )
803	loop_begin = &
804	ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
805	ind_array = &
806	MINLOC( ABS( mask_loop(mid,dim,2) * mask_scale(dim) - zu ) )
807	loop_end = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
808	!
809	!-- The following line assumes a constant vertical grid spacing within
810	!-- the vertical mask range; it fails for vertical grid stretching.
811	!-- Maybe revise later. Issue warning but continue execution. ABS(...)
812	!-- within the IF statement is necessary because the default value of
813	!-- dz_stretch_level_start is -9999999.9_wp.
814	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) * ddxyz )
815
816	IF ( mask_loop(mid,dim,2) * mask_scale(dim) > &
817	ABS( dz_stretch_level_start(1) ) ) THEN
818	WRITE ( message_string, '(A,I3,A,I1,A,F9.3,A,F8.2,3A)' ) &
819	'mask_loop(',mid,',',dim,',2)=', mask_loop(mid,dim,2), &
820	' exceeds dz_stretch_level=',dz_stretch_level_start(1), &
821	'.&Vertical mask locations will not ', &
822	'match the desired heights within the stretching ', &
823	'region.'
824	CALL message( 'init_masks', 'PA0334', 0, 1, 0, 6, 0 )
825	ENDIF
826
827	ENDIF
828	!
829	!-- If necessary, reset mask_loop(mid,dim,1) and mask_loop(mid,dim,2).
830	IF ( tmp1 < 0.0_wp ) mask_loop(mid,dim,1) = tmp1
831	IF ( tmp2 < 0.0_wp ) mask_loop(mid,dim,2) = tmp2
832	!
833	!-- The default stride +/-1 (every grid point) applies if
834	!-- mask_loop(mid,dim,3) is not specified (its default is zero).
835	IF ( loop_stride == 0 ) THEN
836	IF ( loop_end >= loop_begin ) THEN
837	loop_stride = 1
838	ELSE
839	loop_stride = -1
840	ENDIF
841	ENDIF
842	DO m = loop_begin, loop_end, loop_stride
843	count = count + 1
844	IF ( ( m >= lb .AND. m <= ub ) .OR. &
845	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
846	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
847	count_l = count_l + 1
848	IF ( dim == 1 ) THEN
849	mask_i(mid,count_l) = m
850	ELSEIF ( dim == 2 ) THEN
851	mask_j(mid,count_l) = m
852	ELSEIF ( dim == 3 ) THEN
853	mask_k(mid,count_l) = m
854	ENDIF
855	ENDIF
856	ENDDO
857	mask_size(mid,dim) = count
858	mask_size_l(mid,dim) = count_l
859
860	ENDIF
861
862	END SUBROUTINE set_mask_locations
863
864	END SUBROUTINE init_masks

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