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source: palm/trunk/SOURCE/init_masks.f90 @ 4869

Last change on this file since 4869 was 4828, checked in by Giersch, 4 years ago
Copyright updated to year 2021, interface pmc_sort removed to accelarate the nesting code
Property svn:keywords set to `Id`
File size: 36.4 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 terms of the GNU General
6	! Public License as published by the Free Software Foundation, either version 3 of the License, or
7	! (at your option) any later version.
8	!
9	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
10	! implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
11	! Public License for more details.
12	!
13	! You should have received a copy of the GNU General Public License along with PALM. If not, see
14	! <http://www.gnu.org/licenses/>.
15	!
16	! Copyright 1997-2021 Leibniz Universitaet Hannover
17	!--------------------------------------------------------------------------------------------------!
18	!
19	! Current revisions:
20	! -----------------
21	!
22	!
23	! Former revisions:
24	! -----------------
25	! $Id: init_masks.f90 4828 2021-01-05 11:21:41Z schwenkel $
26	! Implement snow and graupel (bulk microphysics)
27	!
28	! 4648 2020-08-25 07:52:08Z raasch
29	! file re-formatted to follow the PALM coding standard
30	!
31	! 4521 2020-05-06 11:39:49Z schwenkel
32	! Rename variable
33	!
34	! 4502 2020-04-17 16:14:16Z schwenkel
35	! Implementation of ice microphysics
36	!
37	! 4444 2020-03-05 15:59:50Z raasch
38	! bugfix: cpp-directives for serial mode added
39	!
40	! 4360 2020-01-07 11:25:50Z suehring
41	! Corrected "Former revisions" section
42	!
43	! 4069 2019-07-01 14:05:51Z Giersch
44	! Masked output running index mid has been introduced as a local variable to avoid runtime error
45	! (Loop variable has been modified) in time_integration
46	!
47	! 3766 2019-02-26 16:23:41Z raasch
48	! unused variables removed
49	!
50	! 3687 2019-01-22 10:42:06Z knoop
51	! unused variables removed
52	!
53	! 3655 2019-01-07 16:51:22Z knoop
54	! Move the control parameter "salsa" from salsa_mod to control_parameters (M. Kurppa)
55	!
56	! 410 2009-12-04 17:05:40Z letzel
57	! Initial revision
58	!
59	!
60	! Description:
61	! ------------
62	!> Initialize masked data output
63	!--------------------------------------------------------------------------------------------------!
64	SUBROUTINE init_masks
65
66	USE arrays_3d, &
67	ONLY: zu, zw
68
69	USE bulk_cloud_model_mod, &
70	ONLY: bulk_cloud_model, microphysics_ice_phase, microphysics_morrison, &
71	microphysics_seifert, snow, graupel
72
73
74	USE control_parameters, &
75	ONLY: constant_diffusion, cloud_droplets, data_output_masks, data_output_masks_user, doav,&
76	doav_n, domask, domask_no, dz, dz_stretch_level_start, humidity, mask, masks, &
77	mask_scale, mask_i, mask_i_global, mask_j, mask_j_global, mask_k, mask_k_global, &
78	mask_k_over_surface, mask_loop, mask_size, mask_size_l, mask_start_l, mask_surface, &
79	mask_x, mask_x_loop, mask_xyz_dimension, mask_y, mask_y_loop, mask_z, mask_z_loop, &
80	max_masks, message_string, passive_scalar, ocean_mode, varnamelength
81
82	USE grid_variables, &
83	ONLY: dx, dy
84
85	USE indices, &
86	ONLY: nx, nxl, nxr, ny, nyn, nys, nz, nzb, nzt
87
88	USE kinds
89
90	USE module_interface, &
91	ONLY: module_interface_init_masks
92
93	USE netcdf_interface, &
94	ONLY: domask_unit, netcdf_data_format
95
96	USE particle_attributes, &
97	ONLY: particle_advection
98
99	USE pegrid
100
101	IMPLICIT NONE
102
103	CHARACTER (LEN=varnamelength) :: var !< contains variable name
104	CHARACTER (LEN=7) :: unit !< contains unit of variable
105
106	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask !< list of output variables
107	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask_user !< list of user-specified output variables
108
109	INTEGER(iwp) :: count !< counting masking indices along a dimension
110	INTEGER(iwp) :: i !< loop index
111	INTEGER(iwp) :: ilen !< length of string saved in 'do_mask'
112	INTEGER(iwp) :: ind_array(1) !< array index
113	INTEGER(iwp) :: j !< loop index
114	INTEGER(iwp) :: k !< loop index
115	INTEGER(iwp) :: m !< mask index
116	INTEGER(iwp) :: mid !< masked output running index
117	#if defined( __parallel )
118	INTEGER(iwp) :: ind(6) !< index limits (lower/upper bounds) of output array
119	INTEGER(iwp) :: n !< loop index
120	INTEGER(iwp) :: sender !< PE id of sending PE
121	#endif
122
123	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: tmp_array !< temporary 1D array
124
125	LOGICAL :: found !< true if variable is found
126
127	!
128	!-- Initial values are explicitly set here due to a bug in the Cray compiler in case of assignments
129	!-- of initial values in declaration statements for arrays with more than 9999 elements
130	!-- (appears with -eD only)
131	domask = ' '
132
133	!
134	!-- Allocation and initialization
135	ALLOCATE( tmp_array( MAX(nx,ny,nz)+2 ) )
136
137	ALLOCATE( mask_i(max_masks,nxr-nxl+2), &
138	mask_j(max_masks,nyn-nys+2), &
139	mask_k(max_masks,nzt-nzb+2) )
140	!
141	!-- internal mask arrays ("mask,dimension,selection")
142	ALLOCATE( mask(max_masks,3,mask_xyz_dimension), mask_loop(max_masks,3,3) )
143
144	!
145	!-- Parallel mask output not yet supported. In check_parameters data format is restricted and is
146	!-- switched back to non-parallel output. Therefore the following error can not occur at the moment.
147	IF ( netcdf_data_format > 4 ) THEN
148	message_string = 'netCDF file formats '// &
149	'5 and 6 (with parallel I/O support)'// &
150	' are currently not supported.'
151	CALL message( 'init_masks', 'PA0328', 1, 2, 0, 6, 0 )
152	ENDIF
153
154	!
155	!-- Store data output parameters for masked data output in few shared arrays
156	DO mid = 1, masks
157
158	do_mask (mid,:) = data_output_masks(mid,:)
159	do_mask_user(mid,:) = data_output_masks_user(mid,:)
160	mask (mid,1,:) = mask_x(mid,:)
161	mask (mid,2,:) = mask_y(mid,:)
162	mask (mid,3,:) = mask_z(mid,:)
163	!
164	!-- Flag a mask as terrain following
165	IF ( mask_k_over_surface(mid,1) /= -1_iwp ) THEN
166	mask_surface(mid) = .TRUE.
167	ENDIF
168
169	IF ( mask_x_loop(mid,1) == -1.0_wp .AND. mask_x_loop(mid,2) == -1.0_wp .AND. &
170	mask_x_loop(mid,3) == -1.0_wp ) THEN
171	mask_loop(mid,1,1:2) = -1.0_wp
172	mask_loop(mid,1,3) = 0.0_wp
173	ELSE
174	mask_loop(mid,1,:) = mask_x_loop(mid,:)
175	ENDIF
176	IF ( mask_y_loop(mid,1) == -1.0_wp .AND. mask_y_loop(mid,2) == -1.0_wp .AND. &
177	mask_y_loop(mid,3) == -1.0_wp ) THEN
178	mask_loop(mid,2,1:2) = -1.0_wp
179	mask_loop(mid,2,3) = 0.0_wp
180	ELSE
181	mask_loop(mid,2,:) = mask_y_loop(mid,:)
182	ENDIF
183	IF ( mask_z_loop(mid,1) == -1.0_wp .AND. mask_z_loop(mid,2) == -1.0_wp .AND. &
184	mask_z_loop(mid,3) == -1.0_wp ) THEN
185	mask_loop(mid,3,1:2) = -1.0_wp
186	mask_loop(mid,3,3) = 0.0_wp
187	ELSE
188	mask_loop(mid,3,:) = mask_z_loop(mid,:)
189	ENDIF
190
191	ENDDO
192
193	mask_i = -1; mask_j = -1; mask_k = -1
194
195	!
196	!-- Global arrays are required by define_netcdf_header.
197	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
198	ALLOCATE( mask_i_global(max_masks,nx+2), &
199	mask_j_global(max_masks,ny+2), &
200	mask_k_global(max_masks,nz+2) )
201	mask_i_global = -1; mask_j_global = -1; mask_k_global = -1
202	ENDIF
203
204	!
205	!-- Determine variable names for each mask
206	DO mid = 1, masks
207	!
208	!-- Append user-defined data output variables to the standard data output
209	IF ( do_mask_user(mid,1) /= ' ' ) THEN
210	i = 1
211	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
212	i = i + 1
213	ENDDO
214	j = 1
215	DO WHILE ( do_mask_user(mid,j) /= ' ' .AND. j <= 100 )
216	IF ( i > 100 ) THEN
217	WRITE ( message_string, * ) 'number of output quantitities ', &
218	'given by data_output_mask and data_output_mask_user ',&
219	'exceeds the limit of 100'
220	CALL message( 'init_masks', 'PA0329', 1, 2, 0, 6, 0 )
221	ENDIF
222	do_mask(mid,i) = do_mask_user(mid,j)
223	i = i + 1
224	j = j + 1
225	ENDDO
226	ENDIF
227
228	!
229	!-- Check and set steering parameters for mask data output and averaging
230	i = 1
231	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
232	!
233	!-- Check for data averaging
234	ilen = LEN_TRIM( do_mask(mid,i) )
235	j = 0 ! no data averaging
236	IF ( ilen > 3 ) THEN
237	IF ( do_mask(mid,i)(ilen-2:ilen) == '_av' ) THEN
238	j = 1 ! data averaging
239	do_mask(mid,i) = do_mask(mid,i)(1:ilen-3)
240	ENDIF
241	ENDIF
242	var = TRIM( do_mask(mid,i) )
243	!
244	!-- Check for allowed value and set units
245	SELECT CASE ( TRIM( var ) )
246
247	CASE ( 'e' )
248	IF ( constant_diffusion ) THEN
249	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
250	'" requires constant_diffusion = .FALSE.'
251	CALL message( 'init_masks', 'PA0103', 1, 2, 0, 6, 0 )
252	ENDIF
253	unit = 'm2/s2'
254
255	CASE ( 'thetal' )
256	IF ( .NOT. bulk_cloud_model ) THEN
257	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
258	'" requires bulk_cloud_model = .TRUE.'
259	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
260	ENDIF
261	unit = 'K'
262
263	CASE ( 'nc' )
264	IF ( .NOT. bulk_cloud_model ) THEN
265	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
266	'" requires bulk_cloud_model = .TRUE.'
267	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
268	ELSEIF ( .NOT. microphysics_morrison ) THEN
269	message_string = 'output of "' // TRIM( var ) // '" ' // 'requires = morrison'
270	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
271	ENDIF
272	unit = '1/m3'
273
274	CASE ( 'ni' )
275	IF ( .NOT. bulk_cloud_model ) THEN
276	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
277	'" requires bulk_cloud_model = .TRUE.'
278	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
279	ELSEIF ( .NOT. microphysics_ice_phase ) THEN
280	message_string = 'output of "' // TRIM( var ) // '" ' // &
281	'requires microphysics_ice_phase = .TRUE.'
282	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
283	ENDIF
284	unit = '1/m3'
285
286	CASE ( 'ng' )
287	IF ( .NOT. bulk_cloud_model ) THEN
288	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
289	'" requires bulk_cloud_model = .TRUE.'
290	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
291	ELSEIF ( .NOT. microphysics_ice_phase .OR. .NOT. graupel ) THEN
292	message_string = 'output of "' // TRIM( var ) // '" ' // &
293	'requires microphysics_ice_phase = .TRUE.'
294	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
295	ENDIF
296	unit = '1/m3'
297
298
299	CASE ( 'nr' )
300	IF ( .NOT. bulk_cloud_model ) THEN
301	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
302	'" requires bulk_cloud_model = .TRUE.'
303	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
304	ELSEIF ( .NOT. microphysics_seifert ) THEN
305	message_string = 'output of "' // TRIM( var ) // '"' // &
306	'requires cloud_scheme = seifert_beheng'
307	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
308	ENDIF
309	unit = '1/m3'
310
311	CASE ( 'ns' )
312	IF ( .NOT. bulk_cloud_model ) THEN
313	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
314	'" requires bulk_cloud_model = .TRUE.'
315	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
316	ELSEIF ( .NOT. microphysics_seifert .OR. .NOT. snow) THEN
317	message_string = 'output of "' // TRIM( var ) // '"' // &
318	'requires cloud_scheme = seifert_beheng'
319	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
320	ENDIF
321	unit = '1/m3'
322
323
324	CASE ( 'pc', 'pr' )
325	IF ( .NOT. particle_advection ) THEN
326	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
327	'" requires a "particles_par"-NAMELIST in the ', &
328	'parameter file (PARIN)'
329	CALL message( 'init_masks', 'PA0104', 1, 2, 0, 6, 0 )
330	ENDIF
331	IF ( TRIM( var ) == 'pc' ) unit = 'number'
332	IF ( TRIM( var ) == 'pr' ) unit = 'm'
333
334	CASE ( 'q', 'thetav' )
335	IF ( .NOT. humidity ) THEN
336	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
337	'" requires humidity = .TRUE.'
338	CALL message( 'init_masks', 'PA0105', 1, 2, 0, 6, 0 )
339	ENDIF
340	IF ( TRIM( var ) == 'q' ) unit = 'kg/kg'
341	IF ( TRIM( var ) == 'thetav' ) unit = 'K'
342
343	CASE ( 'qc' )
344	IF ( .NOT. bulk_cloud_model ) THEN
345	message_string = 'output of "' // TRIM( var ) // '"' // &
346	'requires bulk_cloud_model = .TRUE.'
347	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
348	ENDIF
349	unit = 'kg/kg'
350
351	CASE ( 'ql' )
352	IF ( .NOT. ( bulk_cloud_model .OR. cloud_droplets ) ) THEN
353	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
354	'" requires bulk_cloud_model = .TRUE. or ', &
355	'cloud_droplets = .TRUE.'
356	CALL message( 'init_masks', 'PA0106', 1, 2, 0, 6, 0 )
357	ENDIF
358	unit = 'kg/kg'
359
360	CASE ( 'ql_c', 'ql_v', 'ql_vp' )
361	IF ( .NOT. cloud_droplets ) THEN
362	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
363	'" requires cloud_droplets = .TRUE.'
364	CALL message( 'init_masks', 'PA0107', 1, 2, 0, 6, 0 )
365	ENDIF
366	IF ( TRIM( var ) == 'ql_c' ) unit = 'kg/kg'
367	IF ( TRIM( var ) == 'ql_v' ) unit = 'm3'
368	IF ( TRIM( var ) == 'ql_vp' ) unit = 'none'
369
370	CASE ( 'qv' )
371	IF ( .NOT. bulk_cloud_model ) THEN
372	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
373	' " requires bulk_cloud_model = .TRUE.'
374	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
375	ENDIF
376	unit = 'kg/kg'
377
378	CASE ( 'qg' )
379	IF ( .NOT. bulk_cloud_model ) THEN
380	message_string = 'output of "' // TRIM( var ) // '" ' // &
381	'requires bulk_cloud_model = .TRUE.'
382	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
383	ELSEIF ( .NOT. microphysics_ice_phase .OR. .NOT. graupel ) THEN
384	message_string = 'output of "' // TRIM( var ) // '" ' // &
385	'requires microphysics_ice_phase = .TRUE.'
386	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
387	ENDIF
388	unit = 'kg/kg'
389
390	CASE ( 'qi' )
391	IF ( .NOT. bulk_cloud_model ) THEN
392	message_string = 'output of "' // TRIM( var ) // '" ' // &
393	'requires bulk_cloud_model = .TRUE.'
394	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
395	ELSEIF ( .NOT. microphysics_ice_phase ) THEN
396	message_string = 'output of "' // TRIM( var ) // '" ' // &
397	'requires microphysics_ice_phase = .TRUE.'
398	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
399	ENDIF
400	unit = 'kg/kg'
401
402	CASE ( 'qr' )
403	IF ( .NOT. bulk_cloud_model ) THEN
404	message_string = 'output of "' // TRIM( var ) // '" ' // &
405	'requires bulk_cloud_model = .TRUE.'
406	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
407	ELSEIF ( .NOT. microphysics_seifert ) THEN
408	message_string = 'output of "' // TRIM( var ) // '" ' // &
409	'requires cloud_scheme = seifert_beheng'
410	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
411	ENDIF
412	unit = 'kg/kg'
413
414	CASE ( 'qs' )
415	IF ( .NOT. bulk_cloud_model ) THEN
416	message_string = 'output of "' // TRIM( var ) // '" ' // &
417	'requires bulk_cloud_model = .TRUE.'
418	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
419	ELSEIF ( .NOT. microphysics_seifert .OR. snow ) THEN
420	message_string = 'output of "' // TRIM( var ) // '" ' // &
421	'requires cloud_scheme = seifert_beheng'
422	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
423	ENDIF
424	unit = 'kg/kg'
425
426
427	CASE ( 'rho_sea_water' )
428	IF ( .NOT. ocean_mode ) THEN
429	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
430	'" requires ocean mode'
431	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
432	ENDIF
433	unit = 'kg/m3'
434
435	CASE ( 's' )
436	IF ( .NOT. passive_scalar ) THEN
437	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
438	'" requires passive_scalar = .TRUE.'
439	CALL message( 'init_masks', 'PA0110', 1, 2, 0, 6, 0 )
440	ENDIF
441	unit = 'conc'
442
443	CASE ( 'sa' )
444	IF ( .NOT. ocean_mode ) THEN
445	WRITE ( message_string, * ) 'output of "', TRIM( var ), '" requires ocean mode'
446	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
447	ENDIF
448	unit = 'psu'
449
450	CASE ( 'us', 't', 'lwp', 'pra', 'prr', 'z0', 'z0h*' )
451	WRITE ( message_string, * ) 'illegal value for data_', 'output: "', TRIM( var ), &
452	'" is only allowed', 'for horizontal cross section'
453	CALL message( 'init_masks', 'PA0111', 1, 2, 0, 6, 0 )
454
455	CASE ( 'p', 'theta', 'u', 'v', 'w' )
456	IF ( TRIM( var ) == 'p' ) unit = 'Pa'
457	IF ( TRIM( var ) == 'theta' ) unit = 'K'
458	IF ( TRIM( var ) == 'u' ) unit = 'm/s'
459	IF ( TRIM( var ) == 'v' ) unit = 'm/s'
460	IF ( TRIM( var ) == 'w' ) unit = 'm/s'
461	CONTINUE
462
463	CASE DEFAULT
464	!
465	!-- Allocate arrays for other modules
466	CALL module_interface_init_masks( var, unit )
467
468	IF ( unit == 'illegal' ) THEN
469	IF ( do_mask_user(mid,1) /= ' ' ) THEN
470	WRITE ( message_string, * ) 'illegal value for data_', &
471	'output_masks or data_output_masks_user: "', &
472	TRIM( do_mask(mid,i) ), '"'
473	CALL message( 'init_masks', 'PA0018', 1, 2, 0, 6, 0 )
474	ELSE
475	WRITE ( message_string, * ) 'illegal value for data_', &
476	' output_masks : "', TRIM( do_mask(mid,i) ), '"'
477	CALL message( 'init_masks', 'PA0330', 1, 2, 0, 6, 0 )
478	ENDIF
479	ENDIF
480
481	END SELECT
482	!
483	!-- Set the internal steering parameters appropriately
484	domask_no(mid,j) = domask_no(mid,j) + 1
485	domask(mid,j,domask_no(mid,j)) = do_mask(mid,i)
486	domask_unit(mid,j,domask_no(mid,j)) = unit
487
488	IF ( j == 1 ) THEN
489	!
490	!-- Check, if variable is already subject to averaging
491	found = .FALSE.
492	DO k = 1, doav_n
493	IF ( TRIM( doav(k) ) == TRIM( var ) ) found = .TRUE.
494	ENDDO
495
496	IF ( .NOT. found ) THEN
497	doav_n = doav_n + 1
498	doav(doav_n) = var
499	ENDIF
500	ENDIF
501
502	i = i + 1
503
504	ENDDO ! do_mask(mid,i)
505	ENDDO ! mid
506
507
508	!
509	!-- Determine mask locations for each mask
510	DO mid = 1, masks
511	!
512	!-- Set local masks for each subdomain along all three dimensions
513	CALL set_mask_locations( 1, dx, 'dx', nx, 'nx', nxl, nxr )
514	CALL set_mask_locations( 2, dy, 'dy', ny, 'ny', nys, nyn )
515	IF ( .NOT. mask_surface(mid) ) THEN
516	CALL set_mask_locations( 3, dz(1), 'dz', nz, 'nz', nzb, nzt )
517	ELSE
518	!
519	!-- Set vertical mask locations and size in case of terrain-following output
520	count = 0
521	DO WHILE ( mask_k_over_surface(mid, count+1) >= 0 )
522	m = mask_k_over_surface(mid, count+1)
523	IF ( m > nz+1 ) THEN
524	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) m, ' in mask ', mid, &
525	' along dimension ', 3, &
526	' exceeds (nz+1) = ', nz+1
527	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
528	ENDIF
529	count = count + 1
530	mask_k(mid,count) = mask_k_over_surface(mid, count)
531	IF ( count == mask_xyz_dimension ) EXIT
532	ENDDO
533	mask_start_l(mid,3) = 1
534	mask_size(mid,3) = count
535	mask_size_l(mid,3) = count
536	ENDIF
537	!
538	!-- Set global masks along all three dimensions (required by define_netcdf_header).
539	#if defined( __parallel )
540	!
541	!-- PE0 receives partial arrays from all processors of the respective mask and outputs them. Here
542	!-- a barrier has to be set, because otherwise "-MPI- FATAL: Remote protocol queue full" may
543	!-- occur.
544
545	CALL MPI_BARRIER( comm2d, ierr )
546
547	IF ( myid == 0 ) THEN
548	!
549	!-- Local arrays can be relocated directly.
550	mask_i_global(mid,mask_start_l(mid,1): &
551	mask_start_l(mid,1)+mask_size_l(mid,1)-1) = &
552	mask_i(mid,:mask_size_l(mid,1))
553	mask_j_global(mid,mask_start_l(mid,2): &
554	mask_start_l(mid,2)+mask_size_l(mid,2)-1) = &
555	mask_j(mid,:mask_size_l(mid,2))
556	mask_k_global(mid,mask_start_l(mid,3): &
557	mask_start_l(mid,3)+mask_size_l(mid,3)-1) = &
558	mask_k(mid,:mask_size_l(mid,3))
559	!
560	!-- Receive data from all other PEs.
561	DO n = 1, numprocs-1
562	!
563	!-- Receive index limits first, then arrays.
564	!-- Index limits are received in arbitrary order from the PEs.
565	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, comm2d, status, ierr )
566	!
567	!-- Not all PEs have data for the mask.
568	IF ( ind(1) /= -9999 ) THEN
569	sender = status(MPI_SOURCE)
570	CALL MPI_RECV( tmp_array(ind(1)), ind(2)-ind(1)+1, MPI_INTEGER, sender, 1, comm2d, &
571	status, ierr )
572	mask_i_global(mid,ind(1):ind(2)) = tmp_array(ind(1):ind(2))
573	CALL MPI_RECV( tmp_array(ind(3)), ind(4)-ind(3)+1, MPI_INTEGER, sender, 2, comm2d, &
574	status, ierr )
575	mask_j_global(mid,ind(3):ind(4)) = tmp_array(ind(3):ind(4))
576	CALL MPI_RECV( tmp_array(ind(5)), ind(6)-ind(5)+1, MPI_INTEGER, sender, 3, comm2d, &
577	status, ierr )
578	mask_k_global(mid,ind(5):ind(6)) = tmp_array(ind(5):ind(6))
579	ENDIF
580	ENDDO
581
582	ELSE
583	!
584	!-- If at least part of the mask resides on the PE, send the index limits for the target
585	!-- array, otherwise send -9999 to PE0.
586	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
587	mask_size_l(mid,3) > 0 ) THEN
588	ind(1) = mask_start_l(mid,1)
589	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
590	ind(3) = mask_start_l(mid,2)
591	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
592	ind(5) = mask_start_l(mid,3)
593	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
594	ELSE
595	ind(1) = -9999; ind(2) = -9999
596	ind(3) = -9999; ind(4) = -9999
597	ind(5) = -9999; ind(6) = -9999
598	ENDIF
599	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
600	!
601	!-- If applicable, send data to PE0.
602	IF ( ind(1) /= -9999 ) THEN
603	tmp_array(:mask_size_l(mid,1)) = mask_i(mid,:mask_size_l(mid,1))
604	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,1), MPI_INTEGER, 0, 1, comm2d, ierr )
605	tmp_array(:mask_size_l(mid,2)) = mask_j(mid,:mask_size_l(mid,2))
606	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,2), MPI_INTEGER, 0, 2, comm2d, ierr )
607	tmp_array(:mask_size_l(mid,3)) = mask_k(mid,:mask_size_l(mid,3))
608	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,3), MPI_INTEGER, 0, 3, comm2d, ierr )
609	ENDIF
610	ENDIF
611	!
612	!-- A barrier has to be set, because otherwise some PEs may proceed too fast so that PE0 may
613	!-- receive wrong data on tag 0.
614	CALL MPI_BARRIER( comm2d, ierr )
615
616	IF ( netcdf_data_format > 4 ) THEN
617
618	CALL MPI_BCAST( mask_i_global(mid,:), nx+2, MPI_INTEGER, 0, comm2d, ierr )
619	CALL MPI_BCAST( mask_j_global(mid,:), ny+2, MPI_INTEGER, 0, comm2d, ierr )
620	CALL MPI_BCAST( mask_k_global(mid,:), nz+2, MPI_INTEGER, 0, comm2d, ierr )
621
622	ENDIF
623
624	#else
625	!
626	!-- Local arrays can be relocated directly.
627	mask_i_global(mid,:) = mask_i(mid,:)
628	mask_j_global(mid,:) = mask_j(mid,:)
629	mask_k_global(mid,:) = mask_k(mid,:)
630	#endif
631	ENDDO ! mid
632
633	DEALLOCATE( tmp_array )
634	!
635	!-- Internal mask arrays cannot be deallocated on PE 0 because they are required for header output
636	!-- on PE 0.
637	IF ( myid /= 0 ) DEALLOCATE( mask, mask_loop )
638
639	CONTAINS
640
641	!--------------------------------------------------------------------------------------------------!
642	! Description:
643	! ------------
644	!> Set local mask for each subdomain along 'dim' direction.
645	!--------------------------------------------------------------------------------------------------!
646	SUBROUTINE set_mask_locations( dim, dxyz, dxyz_string, nxyz, nxyz_string, lb, ub )
647
648	IMPLICIT NONE
649
650	CHARACTER (LEN=2) :: dxyz_string !<
651	CHARACTER (LEN=2) :: nxyz_string !<
652
653	INTEGER(iwp) :: count !<
654	INTEGER(iwp) :: count_l !<
655	INTEGER(iwp) :: dim !<
656	INTEGER(iwp) :: m !<
657	INTEGER(iwp) :: loop_begin !<
658	INTEGER(iwp) :: loop_end !<
659	INTEGER(iwp) :: loop_stride !<
660	INTEGER(iwp) :: lb !<
661	INTEGER(iwp) :: nxyz !<
662	INTEGER(iwp) :: ub !<
663
664	REAL(wp) :: dxyz !<
665	REAL(wp) :: ddxyz !<
666	REAL(wp) :: tmp1 !<
667	REAL(wp) :: tmp2 !<
668
669	count = 0; count_l = 0
670	ddxyz = 1.0_wp / dxyz
671	tmp1 = 0.0_wp
672	tmp2 = 0.0_wp
673
674	IF ( mask(mid,dim,1) >= 0.0_wp ) THEN
675	!
676	!-- Use predefined mask_* array
677	DO WHILE ( mask(mid,dim,count+1) >= 0.0_wp )
678	count = count + 1
679	IF ( dim == 1 .OR. dim == 2 ) THEN
680	m = NINT( mask(mid,dim,count) * mask_scale(dim) * ddxyz - 0.5_wp )
681	IF ( m < 0 ) m = 0 ! avoid negative values
682	ELSEIF ( dim == 3 ) THEN
683	ind_array = &
684	MINLOC( ABS( mask(mid,dim,count) * mask_scale(dim) - zu ) )
685	m = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
686	ENDIF
687	IF ( m > (nxyz+1) ) THEN
688	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) m, ' in mask ', mid, &
689	' along dimension ' ,dim, &
690	' exceeds (' ,nxyz_string, &
691	'+1) = ', nxyz+1
692	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
693	ENDIF
694	IF ( ( m >= lb .AND. m <= ub ) .OR. ( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
695	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
696	count_l = count_l + 1
697	IF ( dim == 1 ) THEN
698	mask_i(mid,count_l) = m
699	ELSEIF ( dim == 2 ) THEN
700	mask_j(mid,count_l) = m
701	ELSEIF ( dim == 3 ) THEN
702	mask_k(mid,count_l) = m
703	ENDIF
704	ENDIF
705	IF ( count == mask_xyz_dimension ) EXIT
706	ENDDO
707	mask_size(mid,dim) = count
708	mask_size_l(mid,dim) = count_l
709
710	ELSE
711	!
712	!-- Use predefined mask_loop_* array, or use the default (all grid points along this
713	!-- direction)
714	IF ( mask_loop(mid,dim,1) < 0.0_wp ) THEN
715	tmp1 = mask_loop(mid,dim,1)
716	mask_loop(mid,dim,1) = zw(nzb) ! lowest level (default)
717	ENDIF
718	IF ( dim == 1 .OR. dim == 2 ) THEN
719	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
720	tmp2 = mask_loop(mid,dim,2)
721	mask_loop(mid,dim,2) = nxyz*dxyz / mask_scale(dim) ! (default)
722	ENDIF
723	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
724	> (nxyz+1) * dxyz / mask_scale(dim) ) THEN
725	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),5A,I1,A,F9.3)' ) &
726	'mask_loop(', mid, ',', dim, ',1)=', mask_loop(mid,dim,1), &
727	' and/or mask_loop(', mid, ',', dim, ',2)=', mask_loop(mid,dim,2), &
728	' exceed (', nxyz_string,'+1)*',dxyz_string,'/mask_scale(',dim,')=', &
729	(nxyz+1)*dxyz/mask_scale(dim)
730	CALL message( 'init_masks', 'PA0332', 1, 2, 0, 6, 0 )
731	ENDIF
732	loop_begin = NINT( mask_loop(mid,dim,1) * mask_scale(dim) * ddxyz - 0.5_wp )
733	loop_end = NINT( mask_loop(mid,dim,2) * mask_scale(dim) * ddxyz - 0.5_wp )
734	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) * ddxyz )
735	IF ( loop_begin == -1 ) loop_begin = 0 ! avoid negative values
736	ELSEIF ( dim == 3 ) THEN
737	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
738	tmp2 = mask_loop(mid,dim,2)
739	mask_loop(mid,dim,2) = zu(nz+1) / mask_scale(dim) ! (default)
740	ENDIF
741	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) > zu(nz+1) / mask_scale(dim) ) THEN
742	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),A,I1,A,F9.3)' ) &
743	'mask_loop(', mid, ',', dim, ',1)=', mask_loop(mid,dim,1), &
744	' and/or mask_loop(', mid, ',', dim, ',2)=', mask_loop(mid,dim,2), &
745	' exceed zu(nz+1)/mask_scale(', dim, ')=',zu(nz+1)/mask_scale(dim)
746	CALL message( 'init_masks', 'PA0333', 1, 2, 0, 6, 0 )
747	ENDIF
748	ind_array = MINLOC( ABS( mask_loop(mid,dim,1) * mask_scale(dim) - zu ) )
749	loop_begin = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
750	ind_array = MINLOC( ABS( mask_loop(mid,dim,2) * mask_scale(dim) - zu ) )
751	loop_end = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
752	!
753	!-- The following line assumes a constant vertical grid spacing within the vertical mask
754	!-- range; it fails for vertical grid stretching.
755	!-- Maybe revise later. Issue warning but continue execution. ABS(...) within the IF
756	!-- statement is necessary because the default value of dz_stretch_level_start is
757	!-- -9999999.9_wp.
758	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) * ddxyz )
759
760	IF ( mask_loop(mid,dim,2) * mask_scale(dim) > ABS( dz_stretch_level_start(1) ) ) THEN
761	WRITE ( message_string, '(A,I3,A,I1,A,F9.3,A,F8.2,3A)' ) &
762	'mask_loop(', mid, ',', dim, ',2)=', mask_loop(mid,dim,2), &
763	' exceeds dz_stretch_level=', dz_stretch_level_start(1), &
764	'.&Vertical mask locations will not ', &
765	'match the desired heights within the stretching ', 'region.'
766	CALL message( 'init_masks', 'PA0334', 0, 1, 0, 6, 0 )
767	ENDIF
768
769	ENDIF
770	!
771	!-- If necessary, reset mask_loop(mid,dim,1) and mask_loop(mid,dim,2).
772	IF ( tmp1 < 0.0_wp ) mask_loop(mid,dim,1) = tmp1
773	IF ( tmp2 < 0.0_wp ) mask_loop(mid,dim,2) = tmp2
774	!
775	!-- The default stride +/-1 (every grid point) applies if mask_loop(mid,dim,3) is not
776	!-- specified (its default is zero).
777	IF ( loop_stride == 0 ) THEN
778	IF ( loop_end >= loop_begin ) THEN
779	loop_stride = 1
780	ELSE
781	loop_stride = -1
782	ENDIF
783	ENDIF
784	DO m = loop_begin, loop_end, loop_stride
785	count = count + 1
786	IF ( ( m >= lb .AND. m <= ub ) .OR. ( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
787	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
788	count_l = count_l + 1
789	IF ( dim == 1 ) THEN
790	mask_i(mid,count_l) = m
791	ELSEIF ( dim == 2 ) THEN
792	mask_j(mid,count_l) = m
793	ELSEIF ( dim == 3 ) THEN
794	mask_k(mid,count_l) = m
795	ENDIF
796	ENDIF
797	ENDDO
798	mask_size(mid,dim) = count
799	mask_size_l(mid,dim) = count_l
800
801	ENDIF
802
803	END SUBROUTINE set_mask_locations
804
805	END SUBROUTINE init_masks

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