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source: palm/trunk/SOURCE/data_output_mask.f90 @ 3275

Last change on this file since 3275 was 3274, checked in by knoop, 6 years ago
Modularization of all bulk cloud physics code components
Property svn:keywords set to `Id`
File size: 24.9 KB

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1	!> @file data_output_mask.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: data_output_mask.f90 3274 2018-09-24 15:42:55Z knoop $
27	! Modularization of all bulk cloud physics code components
28	!
29	! 3241 2018-09-12 15:02:00Z raasch
30	! unused variable removed
31	!
32	! 3083 2018-06-19 14:03:12Z gronemeier
33	!
34	!
35	! 3045 2018-05-28 07:55:41Z Giersch
36	! Error messages revised
37	!
38	! 3030 2018-05-23 14:37:00Z raasch
39	! variable if renamed ivar
40	!
41	! 2718 2018-01-02 08:49:38Z maronga
42	! Corrected "Former revisions" section
43	!
44	! 2696 2017-12-14 17:12:51Z kanani
45	! Change in file header (GPL part)
46	!
47	! 2292 2017-06-20 09:51:42Z schwenkel
48	! Implementation of new microphysic scheme: cloud_scheme = 'morrison'
49	! includes two more prognostic equations for cloud drop concentration (nc)
50	! and cloud water content (qc).
51	!
52	! 2101 2017-01-05 16:42:31Z suehring
53	!
54	! 2031 2016-10-21 15:11:58Z knoop
55	! renamed variable rho to rho_ocean and rho_av to rho_ocean_av
56	!
57	! 2000 2016-08-20 18:09:15Z knoop
58	! Forced header and separation lines into 80 columns
59	!
60	! 1980 2016-07-29 15:51:57Z suehring
61	! Bugfix, in order to steer user-defined output, setting flag found explicitly
62	! to .F.
63	!
64	! 1976 2016-07-27 13:28:04Z maronga
65	! Output of radiation quantities is now done directly in the respective module
66	!
67	! 1960 2016-07-12 16:34:24Z suehring
68	! Separate humidity and passive scalar
69	!
70	! 2016-03-06 18:36:17Z raasch
71	! name change of netcdf routines and module + related changes,
72	! switch back of netcdf data format moved from time integration routine to here
73	!
74	! 1691 2015-10-26 16:17:44Z maronga
75	! Added output of radiative heating rates for RRTMG
76	!
77	! 1682 2015-10-07 23:56:08Z knoop
78	! Code annotations made doxygen readable
79	!
80	! 1585 2015-04-30 07:05:52Z maronga
81	! Added support for RRTMG
82	!
83	! 1438 2014-07-22 14:14:06Z heinze
84	! +nr, qc, qr
85	!
86	! 1359 2014-04-11 17:15:14Z hoffmann
87	! New particle structure integrated.
88	!
89	! 1353 2014-04-08 15:21:23Z heinze
90	! REAL constants provided with KIND-attribute
91	!
92	! 1327 2014-03-21 11:00:16Z raasch
93	!
94	!
95	! 1320 2014-03-20 08:40:49Z raasch
96	! ONLY-attribute added to USE-statements,
97	! kind-parameters added to all INTEGER and REAL declaration statements,
98	! kinds are defined in new module kinds,
99	! revision history before 2012 removed,
100	! comment fields (!:) to be used for variable explanations added to
101	! all variable declaration statements
102	!
103	! 1318 2014-03-17 13:35:16Z raasch
104	! barrier argument removed from cpu_log,
105	! module interfaces removed
106	!
107	! 1092 2013-02-02 11:24:22Z raasch
108	! unused variables removed
109	!
110	! 1036 2012-10-22 13:43:42Z raasch
111	! code put under GPL (PALM 3.9)
112	!
113	! 1031 2012-10-19 14:35:30Z raasch
114	! netCDF4 without parallel file support implemented
115	!
116	! 1007 2012-09-19 14:30:36Z franke
117	! Bugfix: calculation of pr must depend on the particle weighting factor,
118	! missing calculation of ql_vp added
119	!
120	! 410 2009-12-04 17:05:40Z letzel
121	! Initial version
122	!
123	! Description:
124	! ------------
125	!> Masked data output in netCDF format for current mask (current value of mid).
126	!------------------------------------------------------------------------------!
127	SUBROUTINE data_output_mask( av )
128
129
130
131	#if defined( __netcdf )
132	USE arrays_3d, &
133	ONLY: e, nc, nr, p, pt, q, qc, ql, ql_c, ql_v, qr, rho_ocean, s, sa, &
134	tend, u, v, vpt, w, d_exner
135
136	USE averaging, &
137	ONLY: e_av, lpt_av, nc_av, nr_av, p_av, pc_av, pr_av, pt_av, q_av, &
138	qc_av, ql_av, ql_c_av, ql_v_av, ql_vp_av, qv_av, qr_av, &
139	rho_ocean_av, s_av, sa_av, u_av, v_av, vpt_av, w_av
140
141	USE basic_constants_and_equations_mod, &
142	ONLY: lv_d_cp
143
144	USE control_parameters, &
145	ONLY: domask, domask_no, domask_time_count, mask_i, &
146	mask_j, mask_k, mask_size, mask_size_l, mask_start_l, &
147	max_masks, message_string, mid, nz_do3d, simulated_time
148	USE cpulog, &
149	ONLY: cpu_log, log_point
150
151	USE indices, &
152	ONLY: nbgp, nxl, nxr, nyn, nys, nzb
153
154	USE kinds
155
156	USE bulk_cloud_model_mod, &
157	ONLY: bulk_cloud_model
158
159	USE NETCDF
160
161	USE netcdf_interface, &
162	ONLY: id_set_mask, id_var_domask, id_var_time_mask, nc_stat, &
163	netcdf_data_format, netcdf_handle_error
164
165	USE particle_attributes, &
166	ONLY: grid_particles, number_of_particles, particles, &
167	particle_advection_start, prt_count
168
169	USE pegrid
170
171	USE radiation_model_mod, &
172	ONLY: radiation, radiation_data_output_mask
173
174	IMPLICIT NONE
175
176	INTEGER(iwp) :: av !<
177	INTEGER(iwp) :: ngp !<
178	INTEGER(iwp) :: i !<
179	INTEGER(iwp) :: ivar !<
180	INTEGER(iwp) :: j !<
181	INTEGER(iwp) :: k !<
182	INTEGER(iwp) :: n !<
183	INTEGER(iwp) :: netcdf_data_format_save !<
184	INTEGER(iwp) :: sender !<
185	INTEGER(iwp) :: ind(6) !<
186
187	LOGICAL :: found !<
188	LOGICAL :: resorted !<
189
190	REAL(wp) :: mean_r !<
191	REAL(wp) :: s_r2 !<
192	REAL(wp) :: s_r3 !<
193
194	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: local_pf !<
195	#if defined( __parallel )
196	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: total_pf !<
197	#endif
198	REAL(wp), DIMENSION(:,:,:), POINTER :: to_be_resorted !<
199
200	!
201	!-- Return, if nothing to output
202	IF ( domask_no(mid,av) == 0 ) RETURN
203
204	CALL cpu_log (log_point(49),'data_output_mask','start')
205
206	!
207	!-- Parallel netcdf output is not tested so far for masked data, hence
208	!-- netcdf_data_format is switched back to non-paralell output.
209	netcdf_data_format_save = netcdf_data_format
210	IF ( netcdf_data_format == 5 ) netcdf_data_format = 3
211	IF ( netcdf_data_format == 6 ) netcdf_data_format = 4
212
213	!
214	!-- Open output file.
215	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
216	CALL check_open( 200+mid+av*max_masks )
217	ENDIF
218
219	!
220	!-- Allocate total and local output arrays.
221	#if defined( __parallel )
222	IF ( myid == 0 ) THEN
223	ALLOCATE( total_pf(mask_size(mid,1),mask_size(mid,2),mask_size(mid,3)) )
224	ENDIF
225	#endif
226	ALLOCATE( local_pf(mask_size_l(mid,1),mask_size_l(mid,2), &
227	mask_size_l(mid,3)) )
228
229	!
230	!-- Update the netCDF time axis.
231	domask_time_count(mid,av) = domask_time_count(mid,av) + 1
232	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
233	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), id_var_time_mask(mid,av), &
234	(/ simulated_time /), &
235	start = (/ domask_time_count(mid,av) /), &
236	count = (/ 1 /) )
237	CALL netcdf_handle_error( 'data_output_mask', 460 )
238	ENDIF
239
240	!
241	!-- Loop over all variables to be written.
242	ivar = 1
243
244	DO WHILE ( domask(mid,av,ivar)(1:1) /= ' ' )
245	!
246	!-- Reallocate local_pf on PE 0 since its shape changes during MPI exchange
247	IF ( netcdf_data_format < 5 .AND. myid == 0 .AND. ivar > 1 ) THEN
248	DEALLOCATE( local_pf )
249	ALLOCATE( local_pf(mask_size_l(mid,1),mask_size_l(mid,2), &
250	mask_size_l(mid,3)) )
251	ENDIF
252	!
253	!-- Set flag to steer output of radiation, land-surface, or user-defined
254	!-- quantities
255	found = .FALSE.
256	!
257	!-- Store the variable chosen.
258	resorted = .FALSE.
259	SELECT CASE ( TRIM( domask(mid,av,ivar) ) )
260
261	CASE ( 'e' )
262	IF ( av == 0 ) THEN
263	to_be_resorted => e
264	ELSE
265	to_be_resorted => e_av
266	ENDIF
267
268	CASE ( 'lpt' )
269	IF ( av == 0 ) THEN
270	to_be_resorted => pt
271	ELSE
272	to_be_resorted => lpt_av
273	ENDIF
274
275	CASE ( 'nc' )
276	IF ( av == 0 ) THEN
277	to_be_resorted => nc
278	ELSE
279	to_be_resorted => nc_av
280	ENDIF
281
282	CASE ( 'nr' )
283	IF ( av == 0 ) THEN
284	to_be_resorted => nr
285	ELSE
286	to_be_resorted => nr_av
287	ENDIF
288
289	CASE ( 'p' )
290	IF ( av == 0 ) THEN
291	to_be_resorted => p
292	ELSE
293	to_be_resorted => p_av
294	ENDIF
295
296	CASE ( 'pc' ) ! particle concentration (requires ghostpoint exchange)
297	IF ( av == 0 ) THEN
298	tend = prt_count
299	CALL exchange_horiz( tend, nbgp )
300	DO i = 1, mask_size_l(mid,1)
301	DO j = 1, mask_size_l(mid,2)
302	DO k = 1, mask_size_l(mid,3)
303	local_pf(i,j,k) = tend(mask_k(mid,k), &
304	mask_j(mid,j),mask_i(mid,i))
305	ENDDO
306	ENDDO
307	ENDDO
308	resorted = .TRUE.
309	ELSE
310	CALL exchange_horiz( pc_av, nbgp )
311	to_be_resorted => pc_av
312	ENDIF
313
314	CASE ( 'pr' ) ! mean particle radius (effective radius)
315	IF ( av == 0 ) THEN
316	IF ( simulated_time >= particle_advection_start ) THEN
317	DO i = nxl, nxr
318	DO j = nys, nyn
319	DO k = nzb, nz_do3d
320	number_of_particles = prt_count(k,j,i)
321	IF (number_of_particles <= 0) CYCLE
322	particles => grid_particles(k,j,i)%particles(1:number_of_particles)
323	s_r2 = 0.0_wp
324	s_r3 = 0.0_wp
325	DO n = 1, number_of_particles
326	IF ( particles(n)%particle_mask ) THEN
327	s_r2 = s_r2 + grid_particles(k,j,i)%particles(n)%radius*2 &
328	grid_particles(k,j,i)%particles(n)%weight_factor
329	s_r3 = s_r3 + grid_particles(k,j,i)%particles(n)%radius*3 &
330	grid_particles(k,j,i)%particles(n)%weight_factor
331	ENDIF
332	ENDDO
333	IF ( s_r2 > 0.0_wp ) THEN
334	mean_r = s_r3 / s_r2
335	ELSE
336	mean_r = 0.0_wp
337	ENDIF
338	tend(k,j,i) = mean_r
339	ENDDO
340	ENDDO
341	ENDDO
342	CALL exchange_horiz( tend, nbgp )
343	ELSE
344	tend = 0.0_wp
345	ENDIF
346	DO i = 1, mask_size_l(mid,1)
347	DO j = 1, mask_size_l(mid,2)
348	DO k = 1, mask_size_l(mid,3)
349	local_pf(i,j,k) = tend(mask_k(mid,k), &
350	mask_j(mid,j),mask_i(mid,i))
351	ENDDO
352	ENDDO
353	ENDDO
354	resorted = .TRUE.
355	ELSE
356	CALL exchange_horiz( pr_av, nbgp )
357	to_be_resorted => pr_av
358	ENDIF
359
360	CASE ( 'pt' )
361	IF ( av == 0 ) THEN
362	IF ( .NOT. bulk_cloud_model ) THEN
363	to_be_resorted => pt
364	ELSE
365	DO i = 1, mask_size_l(mid,1)
366	DO j = 1, mask_size_l(mid,2)
367	DO k = 1, mask_size_l(mid,3)
368	local_pf(i,j,k) = &
369	pt(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i)) &
370	+ lv_d_cp * d_exner(mask_k(mid,k)) * &
371	ql(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i))
372	ENDDO
373	ENDDO
374	ENDDO
375	resorted = .TRUE.
376	ENDIF
377	ELSE
378	to_be_resorted => pt_av
379	ENDIF
380
381	CASE ( 'q' )
382	IF ( av == 0 ) THEN
383	to_be_resorted => q
384	ELSE
385	to_be_resorted => q_av
386	ENDIF
387
388	CASE ( 'qc' )
389	IF ( av == 0 ) THEN
390	to_be_resorted => qc
391	ELSE
392	to_be_resorted => qc_av
393	ENDIF
394
395	CASE ( 'ql' )
396	IF ( av == 0 ) THEN
397	to_be_resorted => ql
398	ELSE
399	to_be_resorted => ql_av
400	ENDIF
401
402	CASE ( 'ql_c' )
403	IF ( av == 0 ) THEN
404	to_be_resorted => ql_c
405	ELSE
406	to_be_resorted => ql_c_av
407	ENDIF
408
409	CASE ( 'ql_v' )
410	IF ( av == 0 ) THEN
411	to_be_resorted => ql_v
412	ELSE
413	to_be_resorted => ql_v_av
414	ENDIF
415
416	CASE ( 'ql_vp' )
417	IF ( av == 0 ) THEN
418	IF ( simulated_time >= particle_advection_start ) THEN
419	DO i = nxl, nxr
420	DO j = nys, nyn
421	DO k = nzb, nz_do3d
422	number_of_particles = prt_count(k,j,i)
423	IF (number_of_particles <= 0) CYCLE
424	particles => grid_particles(k,j,i)%particles(1:number_of_particles)
425	DO n = 1, number_of_particles
426	IF ( particles(n)%particle_mask ) THEN
427	tend(k,j,i) = tend(k,j,i) + &
428	particles(n)%weight_factor / &
429	prt_count(k,j,i)
430	ENDIF
431	ENDDO
432	ENDDO
433	ENDDO
434	ENDDO
435	CALL exchange_horiz( tend, nbgp )
436	ELSE
437	tend = 0.0_wp
438	ENDIF
439	DO i = 1, mask_size_l(mid,1)
440	DO j = 1, mask_size_l(mid,2)
441	DO k = 1, mask_size_l(mid,3)
442	local_pf(i,j,k) = tend(mask_k(mid,k), &
443	mask_j(mid,j),mask_i(mid,i))
444	ENDDO
445	ENDDO
446	ENDDO
447	resorted = .TRUE.
448	ELSE
449	CALL exchange_horiz( ql_vp_av, nbgp )
450	to_be_resorted => ql_vp_av
451	ENDIF
452
453	CASE ( 'qv' )
454	IF ( av == 0 ) THEN
455	DO i = 1, mask_size_l(mid,1)
456	DO j = 1, mask_size_l(mid,2)
457	DO k = 1, mask_size_l(mid,3)
458	local_pf(i,j,k) = &
459	q(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i)) - &
460	ql(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i))
461	ENDDO
462	ENDDO
463	ENDDO
464	resorted = .TRUE.
465	ELSE
466	to_be_resorted => qv_av
467	ENDIF
468
469	CASE ( 'qr' )
470	IF ( av == 0 ) THEN
471	to_be_resorted => qr
472	ELSE
473	to_be_resorted => qr_av
474	ENDIF
475
476	CASE ( 'rho_ocean' )
477	IF ( av == 0 ) THEN
478	to_be_resorted => rho_ocean
479	ELSE
480	to_be_resorted => rho_ocean_av
481	ENDIF
482
483	CASE ( 's' )
484	IF ( av == 0 ) THEN
485	to_be_resorted => s
486	ELSE
487	to_be_resorted => s_av
488	ENDIF
489
490	CASE ( 'sa' )
491	IF ( av == 0 ) THEN
492	to_be_resorted => sa
493	ELSE
494	to_be_resorted => sa_av
495	ENDIF
496
497	CASE ( 'u' )
498	IF ( av == 0 ) THEN
499	to_be_resorted => u
500	ELSE
501	to_be_resorted => u_av
502	ENDIF
503
504	CASE ( 'v' )
505	IF ( av == 0 ) THEN
506	to_be_resorted => v
507	ELSE
508	to_be_resorted => v_av
509	ENDIF
510
511	CASE ( 'vpt' )
512	IF ( av == 0 ) THEN
513	to_be_resorted => vpt
514	ELSE
515	to_be_resorted => vpt_av
516	ENDIF
517
518	CASE ( 'w' )
519	IF ( av == 0 ) THEN
520	to_be_resorted => w
521	ELSE
522	to_be_resorted => w_av
523	ENDIF
524
525	CASE DEFAULT
526
527	!
528	!-- Radiation quantity
529	IF ( radiation ) THEN
530	CALL radiation_data_output_mask(av, domask(mid,av,ivar), found,&
531	local_pf )
532	ENDIF
533
534	!
535	!-- User defined quantity
536	IF ( .NOT. found ) THEN
537	CALL user_data_output_mask(av, domask(mid,av,ivar), found, &
538	local_pf )
539	ENDIF
540
541	resorted = .TRUE.
542
543	IF ( .NOT. found ) THEN
544	WRITE ( message_string, * ) 'no masked output available for: ',&
545	TRIM( domask(mid,av,ivar) )
546	CALL message( 'data_output_mask', 'PA0327', 0, 0, 0, 6, 0 )
547	ENDIF
548
549	END SELECT
550
551	!
552	!-- Resort the array to be output, if not done above
553	IF ( .NOT. resorted ) THEN
554	DO i = 1, mask_size_l(mid,1)
555	DO j = 1, mask_size_l(mid,2)
556	DO k = 1, mask_size_l(mid,3)
557	local_pf(i,j,k) = to_be_resorted(mask_k(mid,k), &
558	mask_j(mid,j),mask_i(mid,i))
559	ENDDO
560	ENDDO
561	ENDDO
562	ENDIF
563
564	!
565	!-- I/O block. I/O methods are implemented
566	!-- (1) for parallel execution
567	!-- a. with netCDF 4 parallel I/O-enabled library
568	!-- b. with netCDF 3 library
569	!-- (2) for serial execution.
570	!-- The choice of method depends on the correct setting of preprocessor
571	!-- directives __parallel and __netcdf4_parallel as well as on the parameter
572	!-- netcdf_data_format.
573	#if defined( __parallel )
574	#if defined( __netcdf4_parallel )
575	IF ( netcdf_data_format > 4 ) THEN
576	!
577	!-- (1) a. Parallel I/O using netCDF 4 (not yet tested)
578	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), &
579	id_var_domask(mid,av,ivar), local_pf, &
580	start = (/ mask_start_l(mid,1), mask_start_l(mid,2), &
581	mask_start_l(mid,3), domask_time_count(mid,av) /), &
582	count = (/ mask_size_l(mid,1), mask_size_l(mid,2), &
583	mask_size_l(mid,3), 1 /) )
584	CALL netcdf_handle_error( 'data_output_mask', 461 )
585	ELSE
586	#endif
587	!
588	!-- (1) b. Conventional I/O only through PE0
589	!-- PE0 receives partial arrays from all processors of the respective mask
590	!-- and outputs them. Here a barrier has to be set, because otherwise
591	!-- "-MPI- FATAL: Remote protocol queue full" may occur.
592	CALL MPI_BARRIER( comm2d, ierr )
593
594	ngp = mask_size_l(mid,1) * mask_size_l(mid,2) * mask_size_l(mid,3)
595	IF ( myid == 0 ) THEN
596	!
597	!-- Local array can be relocated directly.
598	total_pf( &
599	mask_start_l(mid,1):mask_start_l(mid,1)+mask_size_l(mid,1)-1, &
600	mask_start_l(mid,2):mask_start_l(mid,2)+mask_size_l(mid,2)-1, &
601	mask_start_l(mid,3):mask_start_l(mid,3)+mask_size_l(mid,3)-1 ) &
602	= local_pf
603	!
604	!-- Receive data from all other PEs.
605	DO n = 1, numprocs-1
606	!
607	!-- Receive index limits first, then array.
608	!-- Index limits are received in arbitrary order from the PEs.
609	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, &
610	comm2d, status, ierr )
611	!
612	!-- Not all PEs have data for the mask
613	IF ( ind(1) /= -9999 ) THEN
614	ngp = ( ind(2)-ind(1)+1 ) * (ind(4)-ind(3)+1 ) * &
615	( ind(6)-ind(5)+1 )
616	sender = status(MPI_SOURCE)
617	DEALLOCATE( local_pf )
618	ALLOCATE(local_pf(ind(1):ind(2),ind(3):ind(4),ind(5):ind(6)))
619	CALL MPI_RECV( local_pf(ind(1),ind(3),ind(5)), ngp, &
620	MPI_REAL, sender, 1, comm2d, status, ierr )
621	total_pf(ind(1):ind(2),ind(3):ind(4),ind(5):ind(6)) &
622	= local_pf
623	ENDIF
624	ENDDO
625
626	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), &
627	id_var_domask(mid,av,ivar), total_pf, &
628	start = (/ 1, 1, 1, domask_time_count(mid,av) /), &
629	count = (/ mask_size(mid,1), mask_size(mid,2), &
630	mask_size(mid,3), 1 /) )
631	CALL netcdf_handle_error( 'data_output_mask', 462 )
632
633	ELSE
634	!
635	!-- If at least part of the mask resides on the PE, send the index
636	!-- limits for the target array, otherwise send -9999 to PE0.
637	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
638	mask_size_l(mid,3) > 0 ) &
639	THEN
640	ind(1) = mask_start_l(mid,1)
641	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
642	ind(3) = mask_start_l(mid,2)
643	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
644	ind(5) = mask_start_l(mid,3)
645	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
646	ELSE
647	ind(1) = -9999; ind(2) = -9999
648	ind(3) = -9999; ind(4) = -9999
649	ind(5) = -9999; ind(6) = -9999
650	ENDIF
651	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
652	!
653	!-- If applicable, send data to PE0.
654	IF ( ind(1) /= -9999 ) THEN
655	CALL MPI_SEND( local_pf(1,1,1), ngp, MPI_REAL, 0, 1, comm2d, &
656	ierr )
657	ENDIF
658	ENDIF
659	!
660	!-- A barrier has to be set, because otherwise some PEs may proceed too
661	!-- fast so that PE0 may receive wrong data on tag 0.
662	CALL MPI_BARRIER( comm2d, ierr )
663	#if defined( __netcdf4_parallel )
664	ENDIF
665	#endif
666	#else
667	!
668	!-- (2) For serial execution of PALM, the single processor (PE0) holds all
669	!-- data and writes them directly to file.
670	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), &
671	id_var_domask(mid,av,ivar), local_pf, &
672	start = (/ 1, 1, 1, domask_time_count(mid,av) /), &
673	count = (/ mask_size_l(mid,1), mask_size_l(mid,2),&
674	mask_size_l(mid,3), 1 /) )
675	CALL netcdf_handle_error( 'data_output_mask', 463 )
676	#endif
677
678	ivar = ivar + 1
679
680	ENDDO
681
682	!
683	!-- Deallocate temporary arrays.
684	DEALLOCATE( local_pf )
685	#if defined( __parallel )
686	IF ( myid == 0 ) THEN
687	DEALLOCATE( total_pf )
688	ENDIF
689	#endif
690
691	!
692	!-- Switch back to original format given by user (see beginning of this routine)
693	netcdf_data_format = netcdf_data_format_save
694
695	CALL cpu_log( log_point(49), 'data_output_mask', 'stop' )
696	#endif
697
698	END SUBROUTINE data_output_mask

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