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source: palm/trunk/SOURCE/data_output_mask.f90 @ 3042

Last change on this file since 3042 was 3030, checked in by raasch, 7 years ago
variable if renamed ivar
Property svn:keywords set to `Id`
File size: 24.6 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 3030 2018-05-23 14:37:00Z schwenkel $
27	! variable if renamed ivar
28	!
29	! 2718 2018-01-02 08:49:38Z maronga
30	! Corrected "Former revisions" section
31	!
32	! 2696 2017-12-14 17:12:51Z kanani
33	! Change in file header (GPL part)
34	!
35	! 2292 2017-06-20 09:51:42Z schwenkel
36	! Implementation of new microphysic scheme: cloud_scheme = 'morrison'
37	! includes two more prognostic equations for cloud drop concentration (nc)
38	! and cloud water content (qc).
39	!
40	! 2101 2017-01-05 16:42:31Z suehring
41	!
42	! 2031 2016-10-21 15:11:58Z knoop
43	! renamed variable rho to rho_ocean and rho_av to rho_ocean_av
44	!
45	! 2000 2016-08-20 18:09:15Z knoop
46	! Forced header and separation lines into 80 columns
47	!
48	! 1980 2016-07-29 15:51:57Z suehring
49	! Bugfix, in order to steer user-defined output, setting flag found explicitly
50	! to .F.
51	!
52	! 1976 2016-07-27 13:28:04Z maronga
53	! Output of radiation quantities is now done directly in the respective module
54	!
55	! 1960 2016-07-12 16:34:24Z suehring
56	! Separate humidity and passive scalar
57	!
58	! 2016-03-06 18:36:17Z raasch
59	! name change of netcdf routines and module + related changes,
60	! switch back of netcdf data format moved from time integration routine to here
61	!
62	! 1691 2015-10-26 16:17:44Z maronga
63	! Added output of radiative heating rates for RRTMG
64	!
65	! 1682 2015-10-07 23:56:08Z knoop
66	! Code annotations made doxygen readable
67	!
68	! 1585 2015-04-30 07:05:52Z maronga
69	! Added support for RRTMG
70	!
71	! 1438 2014-07-22 14:14:06Z heinze
72	! +nr, qc, qr
73	!
74	! 1359 2014-04-11 17:15:14Z hoffmann
75	! New particle structure integrated.
76	!
77	! 1353 2014-04-08 15:21:23Z heinze
78	! REAL constants provided with KIND-attribute
79	!
80	! 1327 2014-03-21 11:00:16Z raasch
81	!
82	!
83	! 1320 2014-03-20 08:40:49Z raasch
84	! ONLY-attribute added to USE-statements,
85	! kind-parameters added to all INTEGER and REAL declaration statements,
86	! kinds are defined in new module kinds,
87	! revision history before 2012 removed,
88	! comment fields (!:) to be used for variable explanations added to
89	! all variable declaration statements
90	!
91	! 1318 2014-03-17 13:35:16Z raasch
92	! barrier argument removed from cpu_log,
93	! module interfaces removed
94	!
95	! 1092 2013-02-02 11:24:22Z raasch
96	! unused variables removed
97	!
98	! 1036 2012-10-22 13:43:42Z raasch
99	! code put under GPL (PALM 3.9)
100	!
101	! 1031 2012-10-19 14:35:30Z raasch
102	! netCDF4 without parallel file support implemented
103	!
104	! 1007 2012-09-19 14:30:36Z franke
105	! Bugfix: calculation of pr must depend on the particle weighting factor,
106	! missing calculation of ql_vp added
107	!
108	! 410 2009-12-04 17:05:40Z letzel
109	! Initial version
110	!
111	! Description:
112	! ------------
113	!> Masked data output in netCDF format for current mask (current value of mid).
114	!------------------------------------------------------------------------------!
115	SUBROUTINE data_output_mask( av )
116
117
118
119	#if defined( __netcdf )
120	USE arrays_3d, &
121	ONLY: e, nc, nr, p, pt, q, qc, ql, ql_c, ql_v, qr, rho_ocean, s, sa, &
122	tend, u, v, vpt, w
123
124	USE averaging, &
125	ONLY: e_av, lpt_av, nc_av, nr_av, p_av, pc_av, pr_av, pt_av, q_av, &
126	qc_av, ql_av, ql_c_av, ql_v_av, ql_vp_av, qv_av, qr_av, &
127	rho_ocean_av, s_av, sa_av, u_av, v_av, vpt_av, w_av
128
129	USE cloud_parameters, &
130	ONLY: l_d_cp, pt_d_t
131
132	USE control_parameters, &
133	ONLY: cloud_physics, domask, domask_no, domask_time_count, mask_i, &
134	mask_j, mask_k, mask_size, mask_size_l, mask_start_l, &
135	max_masks, message_string, mid, nz_do3d, simulated_time
136	USE cpulog, &
137	ONLY: cpu_log, log_point
138
139	USE indices, &
140	ONLY: nbgp, nxl, nxr, nyn, nys, nzb, nzt
141
142	USE kinds
143
144	USE NETCDF
145
146	USE netcdf_interface, &
147	ONLY: id_set_mask, id_var_domask, id_var_time_mask, nc_stat, &
148	netcdf_data_format, netcdf_handle_error
149
150	USE particle_attributes, &
151	ONLY: grid_particles, number_of_particles, particles, &
152	particle_advection_start, prt_count
153
154	USE pegrid
155
156	USE radiation_model_mod, &
157	ONLY: radiation, radiation_data_output_mask
158
159	IMPLICIT NONE
160
161	INTEGER(iwp) :: av !<
162	INTEGER(iwp) :: ngp !<
163	INTEGER(iwp) :: i !<
164	INTEGER(iwp) :: ivar !<
165	INTEGER(iwp) :: j !<
166	INTEGER(iwp) :: k !<
167	INTEGER(iwp) :: n !<
168	INTEGER(iwp) :: netcdf_data_format_save !<
169	INTEGER(iwp) :: psi !<
170	INTEGER(iwp) :: sender !<
171	INTEGER(iwp) :: ind(6) !<
172
173	LOGICAL :: found !<
174	LOGICAL :: resorted !<
175
176	REAL(wp) :: mean_r !<
177	REAL(wp) :: s_r2 !<
178	REAL(wp) :: s_r3 !<
179
180	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: local_pf !<
181	#if defined( __parallel )
182	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: total_pf !<
183	#endif
184	REAL(wp), DIMENSION(:,:,:), POINTER :: to_be_resorted !<
185
186	!
187	!-- Return, if nothing to output
188	IF ( domask_no(mid,av) == 0 ) RETURN
189
190	CALL cpu_log (log_point(49),'data_output_mask','start')
191
192	!
193	!-- Parallel netcdf output is not tested so far for masked data, hence
194	!-- netcdf_data_format is switched back to non-paralell output.
195	netcdf_data_format_save = netcdf_data_format
196	IF ( netcdf_data_format == 5 ) netcdf_data_format = 3
197	IF ( netcdf_data_format == 6 ) netcdf_data_format = 4
198
199	!
200	!-- Open output file.
201	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
202	CALL check_open( 200+mid+av*max_masks )
203	ENDIF
204
205	!
206	!-- Allocate total and local output arrays.
207	#if defined( __parallel )
208	IF ( myid == 0 ) THEN
209	ALLOCATE( total_pf(mask_size(mid,1),mask_size(mid,2),mask_size(mid,3)) )
210	ENDIF
211	#endif
212	ALLOCATE( local_pf(mask_size_l(mid,1),mask_size_l(mid,2), &
213	mask_size_l(mid,3)) )
214
215	!
216	!-- Update the netCDF time axis.
217	domask_time_count(mid,av) = domask_time_count(mid,av) + 1
218	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
219	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), id_var_time_mask(mid,av), &
220	(/ simulated_time /), &
221	start = (/ domask_time_count(mid,av) /), &
222	count = (/ 1 /) )
223	CALL netcdf_handle_error( 'data_output_mask', 460 )
224	ENDIF
225
226	!
227	!-- Loop over all variables to be written.
228	ivar = 1
229
230	DO WHILE ( domask(mid,av,ivar)(1:1) /= ' ' )
231	!
232	!-- Reallocate local_pf on PE 0 since its shape changes during MPI exchange
233	IF ( netcdf_data_format < 5 .AND. myid == 0 .AND. ivar > 1 ) THEN
234	DEALLOCATE( local_pf )
235	ALLOCATE( local_pf(mask_size_l(mid,1),mask_size_l(mid,2), &
236	mask_size_l(mid,3)) )
237	ENDIF
238	!
239	!-- Set flag to steer output of radiation, land-surface, or user-defined
240	!-- quantities
241	found = .FALSE.
242	!
243	!-- Store the variable chosen.
244	resorted = .FALSE.
245	SELECT CASE ( TRIM( domask(mid,av,ivar) ) )
246
247	CASE ( 'e' )
248	IF ( av == 0 ) THEN
249	to_be_resorted => e
250	ELSE
251	to_be_resorted => e_av
252	ENDIF
253
254	CASE ( 'lpt' )
255	IF ( av == 0 ) THEN
256	to_be_resorted => pt
257	ELSE
258	to_be_resorted => lpt_av
259	ENDIF
260
261	CASE ( 'nc' )
262	IF ( av == 0 ) THEN
263	to_be_resorted => nc
264	ELSE
265	to_be_resorted => nc_av
266	ENDIF
267
268	CASE ( 'nr' )
269	IF ( av == 0 ) THEN
270	to_be_resorted => nr
271	ELSE
272	to_be_resorted => nr_av
273	ENDIF
274
275	CASE ( 'p' )
276	IF ( av == 0 ) THEN
277	to_be_resorted => p
278	ELSE
279	to_be_resorted => p_av
280	ENDIF
281
282	CASE ( 'pc' ) ! particle concentration (requires ghostpoint exchange)
283	IF ( av == 0 ) THEN
284	tend = prt_count
285	CALL exchange_horiz( tend, nbgp )
286	DO i = 1, mask_size_l(mid,1)
287	DO j = 1, mask_size_l(mid,2)
288	DO k = 1, mask_size_l(mid,3)
289	local_pf(i,j,k) = tend(mask_k(mid,k), &
290	mask_j(mid,j),mask_i(mid,i))
291	ENDDO
292	ENDDO
293	ENDDO
294	resorted = .TRUE.
295	ELSE
296	CALL exchange_horiz( pc_av, nbgp )
297	to_be_resorted => pc_av
298	ENDIF
299
300	CASE ( 'pr' ) ! mean particle radius (effective radius)
301	IF ( av == 0 ) THEN
302	IF ( simulated_time >= particle_advection_start ) THEN
303	DO i = nxl, nxr
304	DO j = nys, nyn
305	DO k = nzb, nz_do3d
306	number_of_particles = prt_count(k,j,i)
307	IF (number_of_particles <= 0) CYCLE
308	particles => grid_particles(k,j,i)%particles(1:number_of_particles)
309	s_r2 = 0.0_wp
310	s_r3 = 0.0_wp
311	DO n = 1, number_of_particles
312	IF ( particles(n)%particle_mask ) THEN
313	s_r2 = s_r2 + grid_particles(k,j,i)%particles(n)%radius*2 &
314	grid_particles(k,j,i)%particles(n)%weight_factor
315	s_r3 = s_r3 + grid_particles(k,j,i)%particles(n)%radius*3 &
316	grid_particles(k,j,i)%particles(n)%weight_factor
317	ENDIF
318	ENDDO
319	IF ( s_r2 > 0.0_wp ) THEN
320	mean_r = s_r3 / s_r2
321	ELSE
322	mean_r = 0.0_wp
323	ENDIF
324	tend(k,j,i) = mean_r
325	ENDDO
326	ENDDO
327	ENDDO
328	CALL exchange_horiz( tend, nbgp )
329	ELSE
330	tend = 0.0_wp
331	ENDIF
332	DO i = 1, mask_size_l(mid,1)
333	DO j = 1, mask_size_l(mid,2)
334	DO k = 1, mask_size_l(mid,3)
335	local_pf(i,j,k) = tend(mask_k(mid,k), &
336	mask_j(mid,j),mask_i(mid,i))
337	ENDDO
338	ENDDO
339	ENDDO
340	resorted = .TRUE.
341	ELSE
342	CALL exchange_horiz( pr_av, nbgp )
343	to_be_resorted => pr_av
344	ENDIF
345
346	CASE ( 'pt' )
347	IF ( av == 0 ) THEN
348	IF ( .NOT. cloud_physics ) THEN
349	to_be_resorted => pt
350	ELSE
351	DO i = 1, mask_size_l(mid,1)
352	DO j = 1, mask_size_l(mid,2)
353	DO k = 1, mask_size_l(mid,3)
354	local_pf(i,j,k) = &
355	pt(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i)) &
356	+ l_d_cp * pt_d_t(mask_k(mid,k)) * &
357	ql(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i))
358	ENDDO
359	ENDDO
360	ENDDO
361	resorted = .TRUE.
362	ENDIF
363	ELSE
364	to_be_resorted => pt_av
365	ENDIF
366
367	CASE ( 'q' )
368	IF ( av == 0 ) THEN
369	to_be_resorted => q
370	ELSE
371	to_be_resorted => q_av
372	ENDIF
373
374	CASE ( 'qc' )
375	IF ( av == 0 ) THEN
376	to_be_resorted => qc
377	ELSE
378	to_be_resorted => qc_av
379	ENDIF
380
381	CASE ( 'ql' )
382	IF ( av == 0 ) THEN
383	to_be_resorted => ql
384	ELSE
385	to_be_resorted => ql_av
386	ENDIF
387
388	CASE ( 'ql_c' )
389	IF ( av == 0 ) THEN
390	to_be_resorted => ql_c
391	ELSE
392	to_be_resorted => ql_c_av
393	ENDIF
394
395	CASE ( 'ql_v' )
396	IF ( av == 0 ) THEN
397	to_be_resorted => ql_v
398	ELSE
399	to_be_resorted => ql_v_av
400	ENDIF
401
402	CASE ( 'ql_vp' )
403	IF ( av == 0 ) THEN
404	IF ( simulated_time >= particle_advection_start ) THEN
405	DO i = nxl, nxr
406	DO j = nys, nyn
407	DO k = nzb, nz_do3d
408	number_of_particles = prt_count(k,j,i)
409	IF (number_of_particles <= 0) CYCLE
410	particles => grid_particles(k,j,i)%particles(1:number_of_particles)
411	DO n = 1, number_of_particles
412	IF ( particles(n)%particle_mask ) THEN
413	tend(k,j,i) = tend(k,j,i) + &
414	particles(n)%weight_factor / &
415	prt_count(k,j,i)
416	ENDIF
417	ENDDO
418	ENDDO
419	ENDDO
420	ENDDO
421	CALL exchange_horiz( tend, nbgp )
422	ELSE
423	tend = 0.0_wp
424	ENDIF
425	DO i = 1, mask_size_l(mid,1)
426	DO j = 1, mask_size_l(mid,2)
427	DO k = 1, mask_size_l(mid,3)
428	local_pf(i,j,k) = tend(mask_k(mid,k), &
429	mask_j(mid,j),mask_i(mid,i))
430	ENDDO
431	ENDDO
432	ENDDO
433	resorted = .TRUE.
434	ELSE
435	CALL exchange_horiz( ql_vp_av, nbgp )
436	to_be_resorted => ql_vp_av
437	ENDIF
438
439	CASE ( 'qv' )
440	IF ( av == 0 ) THEN
441	DO i = 1, mask_size_l(mid,1)
442	DO j = 1, mask_size_l(mid,2)
443	DO k = 1, mask_size_l(mid,3)
444	local_pf(i,j,k) = &
445	q(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i)) - &
446	ql(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i))
447	ENDDO
448	ENDDO
449	ENDDO
450	resorted = .TRUE.
451	ELSE
452	to_be_resorted => qv_av
453	ENDIF
454
455	CASE ( 'qr' )
456	IF ( av == 0 ) THEN
457	to_be_resorted => qr
458	ELSE
459	to_be_resorted => qr_av
460	ENDIF
461
462	CASE ( 'rho_ocean' )
463	IF ( av == 0 ) THEN
464	to_be_resorted => rho_ocean
465	ELSE
466	to_be_resorted => rho_ocean_av
467	ENDIF
468
469	CASE ( 's' )
470	IF ( av == 0 ) THEN
471	to_be_resorted => s
472	ELSE
473	to_be_resorted => s_av
474	ENDIF
475
476	CASE ( 'sa' )
477	IF ( av == 0 ) THEN
478	to_be_resorted => sa
479	ELSE
480	to_be_resorted => sa_av
481	ENDIF
482
483	CASE ( 'u' )
484	IF ( av == 0 ) THEN
485	to_be_resorted => u
486	ELSE
487	to_be_resorted => u_av
488	ENDIF
489
490	CASE ( 'v' )
491	IF ( av == 0 ) THEN
492	to_be_resorted => v
493	ELSE
494	to_be_resorted => v_av
495	ENDIF
496
497	CASE ( 'vpt' )
498	IF ( av == 0 ) THEN
499	to_be_resorted => vpt
500	ELSE
501	to_be_resorted => vpt_av
502	ENDIF
503
504	CASE ( 'w' )
505	IF ( av == 0 ) THEN
506	to_be_resorted => w
507	ELSE
508	to_be_resorted => w_av
509	ENDIF
510
511	CASE DEFAULT
512
513	!
514	!-- Radiation quantity
515	IF ( radiation ) THEN
516	CALL radiation_data_output_mask(av, domask(mid,av,ivar), found,&
517	local_pf )
518	ENDIF
519
520	!
521	!-- User defined quantity
522	IF ( .NOT. found ) THEN
523	CALL user_data_output_mask(av, domask(mid,av,ivar), found, &
524	local_pf )
525	ENDIF
526
527	resorted = .TRUE.
528
529	IF ( .NOT. found ) THEN
530	WRITE ( message_string, * ) 'no output available for: ', &
531	TRIM( domask(mid,av,ivar) )
532	CALL message( 'data_output_mask', 'PA0327', 0, 0, 0, 6, 0 )
533	ENDIF
534
535	END SELECT
536
537	!
538	!-- Resort the array to be output, if not done above
539	IF ( .NOT. resorted ) THEN
540	DO i = 1, mask_size_l(mid,1)
541	DO j = 1, mask_size_l(mid,2)
542	DO k = 1, mask_size_l(mid,3)
543	local_pf(i,j,k) = to_be_resorted(mask_k(mid,k), &
544	mask_j(mid,j),mask_i(mid,i))
545	ENDDO
546	ENDDO
547	ENDDO
548	ENDIF
549
550	!
551	!-- I/O block. I/O methods are implemented
552	!-- (1) for parallel execution
553	!-- a. with netCDF 4 parallel I/O-enabled library
554	!-- b. with netCDF 3 library
555	!-- (2) for serial execution.
556	!-- The choice of method depends on the correct setting of preprocessor
557	!-- directives __parallel and __netcdf4_parallel as well as on the parameter
558	!-- netcdf_data_format.
559	#if defined( __parallel )
560	#if defined( __netcdf4_parallel )
561	IF ( netcdf_data_format > 4 ) THEN
562	!
563	!-- (1) a. Parallel I/O using netCDF 4 (not yet tested)
564	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), &
565	id_var_domask(mid,av,ivar), local_pf, &
566	start = (/ mask_start_l(mid,1), mask_start_l(mid,2), &
567	mask_start_l(mid,3), domask_time_count(mid,av) /), &
568	count = (/ mask_size_l(mid,1), mask_size_l(mid,2), &
569	mask_size_l(mid,3), 1 /) )
570	CALL netcdf_handle_error( 'data_output_mask', 461 )
571	ELSE
572	#endif
573	!
574	!-- (1) b. Conventional I/O only through PE0
575	!-- PE0 receives partial arrays from all processors of the respective mask
576	!-- and outputs them. Here a barrier has to be set, because otherwise
577	!-- "-MPI- FATAL: Remote protocol queue full" may occur.
578	CALL MPI_BARRIER( comm2d, ierr )
579
580	ngp = mask_size_l(mid,1) * mask_size_l(mid,2) * mask_size_l(mid,3)
581	IF ( myid == 0 ) THEN
582	!
583	!-- Local array can be relocated directly.
584	total_pf( &
585	mask_start_l(mid,1):mask_start_l(mid,1)+mask_size_l(mid,1)-1, &
586	mask_start_l(mid,2):mask_start_l(mid,2)+mask_size_l(mid,2)-1, &
587	mask_start_l(mid,3):mask_start_l(mid,3)+mask_size_l(mid,3)-1 ) &
588	= local_pf
589	!
590	!-- Receive data from all other PEs.
591	DO n = 1, numprocs-1
592	!
593	!-- Receive index limits first, then array.
594	!-- Index limits are received in arbitrary order from the PEs.
595	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, &
596	comm2d, status, ierr )
597	!
598	!-- Not all PEs have data for the mask
599	IF ( ind(1) /= -9999 ) THEN
600	ngp = ( ind(2)-ind(1)+1 ) * (ind(4)-ind(3)+1 ) * &
601	( ind(6)-ind(5)+1 )
602	sender = status(MPI_SOURCE)
603	DEALLOCATE( local_pf )
604	ALLOCATE(local_pf(ind(1):ind(2),ind(3):ind(4),ind(5):ind(6)))
605	CALL MPI_RECV( local_pf(ind(1),ind(3),ind(5)), ngp, &
606	MPI_REAL, sender, 1, comm2d, status, ierr )
607	total_pf(ind(1):ind(2),ind(3):ind(4),ind(5):ind(6)) &
608	= local_pf
609	ENDIF
610	ENDDO
611
612	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), &
613	id_var_domask(mid,av,ivar), total_pf, &
614	start = (/ 1, 1, 1, domask_time_count(mid,av) /), &
615	count = (/ mask_size(mid,1), mask_size(mid,2), &
616	mask_size(mid,3), 1 /) )
617	CALL netcdf_handle_error( 'data_output_mask', 462 )
618
619	ELSE
620	!
621	!-- If at least part of the mask resides on the PE, send the index
622	!-- limits for the target array, otherwise send -9999 to PE0.
623	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
624	mask_size_l(mid,3) > 0 ) &
625	THEN
626	ind(1) = mask_start_l(mid,1)
627	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
628	ind(3) = mask_start_l(mid,2)
629	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
630	ind(5) = mask_start_l(mid,3)
631	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
632	ELSE
633	ind(1) = -9999; ind(2) = -9999
634	ind(3) = -9999; ind(4) = -9999
635	ind(5) = -9999; ind(6) = -9999
636	ENDIF
637	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
638	!
639	!-- If applicable, send data to PE0.
640	IF ( ind(1) /= -9999 ) THEN
641	CALL MPI_SEND( local_pf(1,1,1), ngp, MPI_REAL, 0, 1, comm2d, &
642	ierr )
643	ENDIF
644	ENDIF
645	!
646	!-- A barrier has to be set, because otherwise some PEs may proceed too
647	!-- fast so that PE0 may receive wrong data on tag 0.
648	CALL MPI_BARRIER( comm2d, ierr )
649	#if defined( __netcdf4_parallel )
650	ENDIF
651	#endif
652	#else
653	!
654	!-- (2) For serial execution of PALM, the single processor (PE0) holds all
655	!-- data and writes them directly to file.
656	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), &
657	id_var_domask(mid,av,ivar), local_pf, &
658	start = (/ 1, 1, 1, domask_time_count(mid,av) /), &
659	count = (/ mask_size_l(mid,1), mask_size_l(mid,2),&
660	mask_size_l(mid,3), 1 /) )
661	CALL netcdf_handle_error( 'data_output_mask', 463 )
662	#endif
663
664	ivar = ivar + 1
665
666	ENDDO
667
668	!
669	!-- Deallocate temporary arrays.
670	DEALLOCATE( local_pf )
671	#if defined( __parallel )
672	IF ( myid == 0 ) THEN
673	DEALLOCATE( total_pf )
674	ENDIF
675	#endif
676
677	!
678	!-- Switch back to original format given by user (see beginning of this routine)
679	netcdf_data_format = netcdf_data_format_save
680
681	CALL cpu_log( log_point(49), 'data_output_mask', 'stop' )
682	#endif
683
684	END SUBROUTINE data_output_mask

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