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source: palm/trunk/SOURCE/data_output_mask.f90 @ 3424

Last change on this file since 3424 was 3421, checked in by gronemeier, 6 years ago
new surface-data output; renamed output variables (pt to theta, rho_air to rho, rho_ocean to rho_sea_water)
Property svn:keywords set to `Id`
File size: 24.7 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 3421 2018-10-24 18:39:32Z gronemeier $
27	! Renamed output variables
28	!
29	! 3419 2018-10-24 17:27:31Z gronemeier
30	! Minor formatting (kanani)
31	! Call for chem_data_output_mask added (basit)
32	!
33	! 3274 2018-09-24 15:42:55Z knoop
34	! Modularization of all bulk cloud physics code components
35	!
36	! 3241 2018-09-12 15:02:00Z raasch
37	! unused variable removed
38	!
39	! 3083 2018-06-19 14:03:12Z gronemeier
40	!
41	!
42	! 3045 2018-05-28 07:55:41Z Giersch
43	! Error messages revised
44	!
45	! 3030 2018-05-23 14:37:00Z raasch
46	! variable if renamed ivar
47	!
48	! 2718 2018-01-02 08:49:38Z maronga
49	! Corrected "Former revisions" section
50	!
51	! 2696 2017-12-14 17:12:51Z kanani
52	! Change in file header (GPL part)
53	!
54	! 2292 2017-06-20 09:51:42Z schwenkel
55	! Implementation of new microphysic scheme: cloud_scheme = 'morrison'
56	! includes two more prognostic equations for cloud drop concentration (nc)
57	! and cloud water content (qc).
58	!
59	! 2101 2017-01-05 16:42:31Z suehring
60	!
61	! 2031 2016-10-21 15:11:58Z knoop
62	! renamed variable rho to rho_ocean and rho_av to rho_ocean_av
63	!
64	! 2000 2016-08-20 18:09:15Z knoop
65	! Forced header and separation lines into 80 columns
66	!
67	! 1980 2016-07-29 15:51:57Z suehring
68	! Bugfix, in order to steer user-defined output, setting flag found explicitly
69	! to .F.
70	!
71	! 1976 2016-07-27 13:28:04Z maronga
72	! Output of radiation quantities is now done directly in the respective module
73	!
74	! 1960 2016-07-12 16:34:24Z suehring
75	! Separate humidity and passive scalar
76	!
77	! 2016-03-06 18:36:17Z raasch
78	! name change of netcdf routines and module + related changes,
79	! switch back of netcdf data format moved from time integration routine to here
80	!
81	! 1691 2015-10-26 16:17:44Z maronga
82	! Added output of radiative heating rates for RRTMG
83	!
84	! 1682 2015-10-07 23:56:08Z knoop
85	! Code annotations made doxygen readable
86	!
87	! 1585 2015-04-30 07:05:52Z maronga
88	! Added support for RRTMG
89	!
90	! 1438 2014-07-22 14:14:06Z heinze
91	! +nr, qc, qr
92	!
93	! 1359 2014-04-11 17:15:14Z hoffmann
94	! New particle structure integrated.
95	!
96	! 1353 2014-04-08 15:21:23Z heinze
97	! REAL constants provided with KIND-attribute
98	!
99	! 1327 2014-03-21 11:00:16Z raasch
100	!
101	!
102	! 1320 2014-03-20 08:40:49Z raasch
103	! ONLY-attribute added to USE-statements,
104	! kind-parameters added to all INTEGER and REAL declaration statements,
105	! kinds are defined in new module kinds,
106	! revision history before 2012 removed,
107	! comment fields (!:) to be used for variable explanations added to
108	! all variable declaration statements
109	!
110	! 1318 2014-03-17 13:35:16Z raasch
111	! barrier argument removed from cpu_log,
112	! module interfaces removed
113	!
114	! 1092 2013-02-02 11:24:22Z raasch
115	! unused variables removed
116	!
117	! 1036 2012-10-22 13:43:42Z raasch
118	! code put under GPL (PALM 3.9)
119	!
120	! 1031 2012-10-19 14:35:30Z raasch
121	! netCDF4 without parallel file support implemented
122	!
123	! 1007 2012-09-19 14:30:36Z franke
124	! Bugfix: calculation of pr must depend on the particle weighting factor,
125	! missing calculation of ql_vp added
126	!
127	! 410 2009-12-04 17:05:40Z letzel
128	! Initial version
129	!
130	! Description:
131	! ------------
132	!> Masked data output in netCDF format for current mask (current value of mid).
133	!------------------------------------------------------------------------------!
134	SUBROUTINE data_output_mask( av )
135
136
137
138	#if defined( __netcdf )
139	USE arrays_3d, &
140	ONLY: e, nc, nr, p, pt, q, qc, ql, ql_c, ql_v, qr, rho_ocean, s, sa, &
141	tend, u, v, vpt, w, d_exner
142
143	USE averaging, &
144	ONLY: e_av, lpt_av, nc_av, nr_av, p_av, pc_av, pr_av, pt_av, q_av, &
145	qc_av, ql_av, ql_c_av, ql_v_av, ql_vp_av, qv_av, qr_av, &
146	rho_ocean_av, s_av, sa_av, u_av, v_av, vpt_av, w_av
147
148	USE basic_constants_and_equations_mod, &
149	ONLY: lv_d_cp
150
151	USE chemistry_model_mod, &
152	ONLY: chem_data_output_mask
153
154	USE control_parameters, &
155	ONLY: air_chemistry, domask, domask_no, domask_time_count, mask_i, &
156	mask_j, mask_k, mask_size, mask_size_l, mask_start_l, &
157	max_masks, message_string, mid, nz_do3d, simulated_time
158	USE cpulog, &
159	ONLY: cpu_log, log_point
160
161	USE indices, &
162	ONLY: nbgp, nxl, nxr, nyn, nys, nzb
163
164	USE kinds
165
166	USE bulk_cloud_model_mod, &
167	ONLY: bulk_cloud_model
168
169	USE NETCDF
170
171	USE netcdf_interface, &
172	ONLY: id_set_mask, id_var_domask, id_var_time_mask, nc_stat, &
173	netcdf_data_format, netcdf_handle_error
174
175	USE particle_attributes, &
176	ONLY: grid_particles, number_of_particles, particles, &
177	particle_advection_start, prt_count
178
179	USE pegrid
180
181	USE radiation_model_mod, &
182	ONLY: radiation, radiation_data_output_mask
183
184	IMPLICIT NONE
185
186	INTEGER(iwp) :: av !<
187	INTEGER(iwp) :: ngp !<
188	INTEGER(iwp) :: i !<
189	INTEGER(iwp) :: ivar !<
190	INTEGER(iwp) :: j !<
191	INTEGER(iwp) :: k !<
192	INTEGER(iwp) :: n !<
193	INTEGER(iwp) :: netcdf_data_format_save !<
194	INTEGER(iwp) :: sender !<
195	INTEGER(iwp) :: ind(6) !<
196
197	LOGICAL :: found !<
198	LOGICAL :: resorted !<
199
200	REAL(wp) :: mean_r !<
201	REAL(wp) :: s_r2 !<
202	REAL(wp) :: s_r3 !<
203
204	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: local_pf !<
205	#if defined( __parallel )
206	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: total_pf !<
207	#endif
208	REAL(wp), DIMENSION(:,:,:), POINTER :: to_be_resorted !<
209
210	!
211	!-- Return, if nothing to output
212	IF ( domask_no(mid,av) == 0 ) RETURN
213
214	CALL cpu_log (log_point(49),'data_output_mask','start')
215
216	!
217	!-- Parallel netcdf output is not tested so far for masked data, hence
218	!-- netcdf_data_format is switched back to non-paralell output.
219	netcdf_data_format_save = netcdf_data_format
220	IF ( netcdf_data_format == 5 ) netcdf_data_format = 3
221	IF ( netcdf_data_format == 6 ) netcdf_data_format = 4
222
223	!
224	!-- Open output file.
225	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
226	CALL check_open( 200+mid+av*max_masks )
227	ENDIF
228
229	!
230	!-- Allocate total and local output arrays.
231	#if defined( __parallel )
232	IF ( myid == 0 ) THEN
233	ALLOCATE( total_pf(mask_size(mid,1),mask_size(mid,2),mask_size(mid,3)) )
234	ENDIF
235	#endif
236	ALLOCATE( local_pf(mask_size_l(mid,1),mask_size_l(mid,2), &
237	mask_size_l(mid,3)) )
238
239	!
240	!-- Update the netCDF time axis.
241	domask_time_count(mid,av) = domask_time_count(mid,av) + 1
242	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
243	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), id_var_time_mask(mid,av), &
244	(/ simulated_time /), &
245	start = (/ domask_time_count(mid,av) /), &
246	count = (/ 1 /) )
247	CALL netcdf_handle_error( 'data_output_mask', 460 )
248	ENDIF
249
250	!
251	!-- Loop over all variables to be written.
252	ivar = 1
253
254	DO WHILE ( domask(mid,av,ivar)(1:1) /= ' ' )
255	!
256	!-- Reallocate local_pf on PE 0 since its shape changes during MPI exchange
257	IF ( netcdf_data_format < 5 .AND. myid == 0 .AND. ivar > 1 ) THEN
258	DEALLOCATE( local_pf )
259	ALLOCATE( local_pf(mask_size_l(mid,1),mask_size_l(mid,2), &
260	mask_size_l(mid,3)) )
261	ENDIF
262	!
263	!-- Set flag to steer output of radiation, land-surface, or user-defined
264	!-- quantities
265	found = .FALSE.
266	!
267	!-- Store the variable chosen.
268	resorted = .FALSE.
269	SELECT CASE ( TRIM( domask(mid,av,ivar) ) )
270
271	CASE ( 'e' )
272	IF ( av == 0 ) THEN
273	to_be_resorted => e
274	ELSE
275	to_be_resorted => e_av
276	ENDIF
277
278	CASE ( 'thetal' )
279	IF ( av == 0 ) THEN
280	to_be_resorted => pt
281	ELSE
282	to_be_resorted => lpt_av
283	ENDIF
284
285	CASE ( 'nc' )
286	IF ( av == 0 ) THEN
287	to_be_resorted => nc
288	ELSE
289	to_be_resorted => nc_av
290	ENDIF
291
292	CASE ( 'nr' )
293	IF ( av == 0 ) THEN
294	to_be_resorted => nr
295	ELSE
296	to_be_resorted => nr_av
297	ENDIF
298
299	CASE ( 'p' )
300	IF ( av == 0 ) THEN
301	to_be_resorted => p
302	ELSE
303	to_be_resorted => p_av
304	ENDIF
305
306	CASE ( 'pc' ) ! particle concentration (requires ghostpoint exchange)
307	IF ( av == 0 ) THEN
308	tend = prt_count
309	CALL exchange_horiz( tend, nbgp )
310	DO i = 1, mask_size_l(mid,1)
311	DO j = 1, mask_size_l(mid,2)
312	DO k = 1, mask_size_l(mid,3)
313	local_pf(i,j,k) = tend(mask_k(mid,k), &
314	mask_j(mid,j),mask_i(mid,i))
315	ENDDO
316	ENDDO
317	ENDDO
318	resorted = .TRUE.
319	ELSE
320	CALL exchange_horiz( pc_av, nbgp )
321	to_be_resorted => pc_av
322	ENDIF
323
324	CASE ( 'pr' ) ! mean particle radius (effective radius)
325	IF ( av == 0 ) THEN
326	IF ( simulated_time >= particle_advection_start ) THEN
327	DO i = nxl, nxr
328	DO j = nys, nyn
329	DO k = nzb, nz_do3d
330	number_of_particles = prt_count(k,j,i)
331	IF (number_of_particles <= 0) CYCLE
332	particles => grid_particles(k,j,i)%particles(1:number_of_particles)
333	s_r2 = 0.0_wp
334	s_r3 = 0.0_wp
335	DO n = 1, number_of_particles
336	IF ( particles(n)%particle_mask ) THEN
337	s_r2 = s_r2 + grid_particles(k,j,i)%particles(n)%radius*2 &
338	grid_particles(k,j,i)%particles(n)%weight_factor
339	s_r3 = s_r3 + grid_particles(k,j,i)%particles(n)%radius*3 &
340	grid_particles(k,j,i)%particles(n)%weight_factor
341	ENDIF
342	ENDDO
343	IF ( s_r2 > 0.0_wp ) THEN
344	mean_r = s_r3 / s_r2
345	ELSE
346	mean_r = 0.0_wp
347	ENDIF
348	tend(k,j,i) = mean_r
349	ENDDO
350	ENDDO
351	ENDDO
352	CALL exchange_horiz( tend, nbgp )
353	ELSE
354	tend = 0.0_wp
355	ENDIF
356	DO i = 1, mask_size_l(mid,1)
357	DO j = 1, mask_size_l(mid,2)
358	DO k = 1, mask_size_l(mid,3)
359	local_pf(i,j,k) = tend(mask_k(mid,k), &
360	mask_j(mid,j),mask_i(mid,i))
361	ENDDO
362	ENDDO
363	ENDDO
364	resorted = .TRUE.
365	ELSE
366	CALL exchange_horiz( pr_av, nbgp )
367	to_be_resorted => pr_av
368	ENDIF
369
370	CASE ( 'theta' )
371	IF ( av == 0 ) THEN
372	IF ( .NOT. bulk_cloud_model ) THEN
373	to_be_resorted => pt
374	ELSE
375	DO i = 1, mask_size_l(mid,1)
376	DO j = 1, mask_size_l(mid,2)
377	DO k = 1, mask_size_l(mid,3)
378	local_pf(i,j,k) = &
379	pt(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i)) &
380	+ lv_d_cp * d_exner(mask_k(mid,k)) * &
381	ql(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i))
382	ENDDO
383	ENDDO
384	ENDDO
385	resorted = .TRUE.
386	ENDIF
387	ELSE
388	to_be_resorted => pt_av
389	ENDIF
390
391	CASE ( 'q' )
392	IF ( av == 0 ) THEN
393	to_be_resorted => q
394	ELSE
395	to_be_resorted => q_av
396	ENDIF
397
398	CASE ( 'qc' )
399	IF ( av == 0 ) THEN
400	to_be_resorted => qc
401	ELSE
402	to_be_resorted => qc_av
403	ENDIF
404
405	CASE ( 'ql' )
406	IF ( av == 0 ) THEN
407	to_be_resorted => ql
408	ELSE
409	to_be_resorted => ql_av
410	ENDIF
411
412	CASE ( 'ql_c' )
413	IF ( av == 0 ) THEN
414	to_be_resorted => ql_c
415	ELSE
416	to_be_resorted => ql_c_av
417	ENDIF
418
419	CASE ( 'ql_v' )
420	IF ( av == 0 ) THEN
421	to_be_resorted => ql_v
422	ELSE
423	to_be_resorted => ql_v_av
424	ENDIF
425
426	CASE ( 'ql_vp' )
427	IF ( av == 0 ) THEN
428	IF ( simulated_time >= particle_advection_start ) THEN
429	DO i = nxl, nxr
430	DO j = nys, nyn
431	DO k = nzb, nz_do3d
432	number_of_particles = prt_count(k,j,i)
433	IF (number_of_particles <= 0) CYCLE
434	particles => grid_particles(k,j,i)%particles(1:number_of_particles)
435	DO n = 1, number_of_particles
436	IF ( particles(n)%particle_mask ) THEN
437	tend(k,j,i) = tend(k,j,i) + &
438	particles(n)%weight_factor / &
439	prt_count(k,j,i)
440	ENDIF
441	ENDDO
442	ENDDO
443	ENDDO
444	ENDDO
445	CALL exchange_horiz( tend, nbgp )
446	ELSE
447	tend = 0.0_wp
448	ENDIF
449	DO i = 1, mask_size_l(mid,1)
450	DO j = 1, mask_size_l(mid,2)
451	DO k = 1, mask_size_l(mid,3)
452	local_pf(i,j,k) = tend(mask_k(mid,k), &
453	mask_j(mid,j),mask_i(mid,i))
454	ENDDO
455	ENDDO
456	ENDDO
457	resorted = .TRUE.
458	ELSE
459	CALL exchange_horiz( ql_vp_av, nbgp )
460	to_be_resorted => ql_vp_av
461	ENDIF
462
463	CASE ( 'qv' )
464	IF ( av == 0 ) THEN
465	DO i = 1, mask_size_l(mid,1)
466	DO j = 1, mask_size_l(mid,2)
467	DO k = 1, mask_size_l(mid,3)
468	local_pf(i,j,k) = &
469	q(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i)) - &
470	ql(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i))
471	ENDDO
472	ENDDO
473	ENDDO
474	resorted = .TRUE.
475	ELSE
476	to_be_resorted => qv_av
477	ENDIF
478
479	CASE ( 'qr' )
480	IF ( av == 0 ) THEN
481	to_be_resorted => qr
482	ELSE
483	to_be_resorted => qr_av
484	ENDIF
485
486	CASE ( 'rho_sea_water' )
487	IF ( av == 0 ) THEN
488	to_be_resorted => rho_ocean
489	ELSE
490	to_be_resorted => rho_ocean_av
491	ENDIF
492
493	CASE ( 's' )
494	IF ( av == 0 ) THEN
495	to_be_resorted => s
496	ELSE
497	to_be_resorted => s_av
498	ENDIF
499
500	CASE ( 'sa' )
501	IF ( av == 0 ) THEN
502	to_be_resorted => sa
503	ELSE
504	to_be_resorted => sa_av
505	ENDIF
506
507	CASE ( 'u' )
508	IF ( av == 0 ) THEN
509	to_be_resorted => u
510	ELSE
511	to_be_resorted => u_av
512	ENDIF
513
514	CASE ( 'v' )
515	IF ( av == 0 ) THEN
516	to_be_resorted => v
517	ELSE
518	to_be_resorted => v_av
519	ENDIF
520
521	CASE ( 'thetav' )
522	IF ( av == 0 ) THEN
523	to_be_resorted => vpt
524	ELSE
525	to_be_resorted => vpt_av
526	ENDIF
527
528	CASE ( 'w' )
529	IF ( av == 0 ) THEN
530	to_be_resorted => w
531	ELSE
532	to_be_resorted => w_av
533	ENDIF
534
535	CASE DEFAULT
536
537	!
538	!-- Radiation quantity
539	IF ( radiation ) THEN
540	CALL radiation_data_output_mask(av, domask(mid,av,ivar), found,&
541	local_pf )
542	ENDIF
543
544	IF ( air_chemistry ) THEN
545	CALL chem_data_output_mask(av, domask(mid,av,ivar), found, &
546	local_pf )
547	ENDIF
548	!
549	!-- User defined quantity
550	IF ( .NOT. found ) THEN
551	CALL user_data_output_mask(av, domask(mid,av,ivar), found, &
552	local_pf )
553	ENDIF
554
555	resorted = .TRUE.
556
557	IF ( .NOT. found ) THEN
558	WRITE ( message_string, * ) 'no masked output available for: ',&
559	TRIM( domask(mid,av,ivar) )
560	CALL message( 'data_output_mask', 'PA0327', 0, 0, 0, 6, 0 )
561	ENDIF
562
563	END SELECT
564
565	!
566	!-- Resort the array to be output, if not done above
567	IF ( .NOT. resorted ) THEN
568	DO i = 1, mask_size_l(mid,1)
569	DO j = 1, mask_size_l(mid,2)
570	DO k = 1, mask_size_l(mid,3)
571	local_pf(i,j,k) = to_be_resorted(mask_k(mid,k), &
572	mask_j(mid,j),mask_i(mid,i))
573	ENDDO
574	ENDDO
575	ENDDO
576	ENDIF
577
578	!
579	!-- I/O block. I/O methods are implemented
580	!-- (1) for parallel execution
581	!-- a. with netCDF 4 parallel I/O-enabled library
582	!-- b. with netCDF 3 library
583	!-- (2) for serial execution.
584	!-- The choice of method depends on the correct setting of preprocessor
585	!-- directives __parallel and __netcdf4_parallel as well as on the parameter
586	!-- netcdf_data_format.
587	#if defined( __parallel )
588	#if defined( __netcdf4_parallel )
589	IF ( netcdf_data_format > 4 ) THEN
590	!
591	!-- (1) a. Parallel I/O using netCDF 4 (not yet tested)
592	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), &
593	id_var_domask(mid,av,ivar), local_pf, &
594	start = (/ mask_start_l(mid,1), mask_start_l(mid,2), &
595	mask_start_l(mid,3), domask_time_count(mid,av) /), &
596	count = (/ mask_size_l(mid,1), mask_size_l(mid,2), &
597	mask_size_l(mid,3), 1 /) )
598	CALL netcdf_handle_error( 'data_output_mask', 461 )
599	ELSE
600	#endif
601	!
602	!-- (1) b. Conventional I/O only through PE0
603	!-- PE0 receives partial arrays from all processors of the respective mask
604	!-- and outputs them. Here a barrier has to be set, because otherwise
605	!-- "-MPI- FATAL: Remote protocol queue full" may occur.
606	CALL MPI_BARRIER( comm2d, ierr )
607
608	ngp = mask_size_l(mid,1) * mask_size_l(mid,2) * mask_size_l(mid,3)
609	IF ( myid == 0 ) THEN
610	!
611	!-- Local array can be relocated directly.
612	total_pf( &
613	mask_start_l(mid,1):mask_start_l(mid,1)+mask_size_l(mid,1)-1, &
614	mask_start_l(mid,2):mask_start_l(mid,2)+mask_size_l(mid,2)-1, &
615	mask_start_l(mid,3):mask_start_l(mid,3)+mask_size_l(mid,3)-1 ) &
616	= local_pf
617	!
618	!-- Receive data from all other PEs.
619	DO n = 1, numprocs-1
620	!
621	!-- Receive index limits first, then array.
622	!-- Index limits are received in arbitrary order from the PEs.
623	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, &
624	comm2d, status, ierr )
625	!
626	!-- Not all PEs have data for the mask
627	IF ( ind(1) /= -9999 ) THEN
628	ngp = ( ind(2)-ind(1)+1 ) * (ind(4)-ind(3)+1 ) * &
629	( ind(6)-ind(5)+1 )
630	sender = status(MPI_SOURCE)
631	DEALLOCATE( local_pf )
632	ALLOCATE(local_pf(ind(1):ind(2),ind(3):ind(4),ind(5):ind(6)))
633	CALL MPI_RECV( local_pf(ind(1),ind(3),ind(5)), ngp, &
634	MPI_REAL, sender, 1, comm2d, status, ierr )
635	total_pf(ind(1):ind(2),ind(3):ind(4),ind(5):ind(6)) &
636	= local_pf
637	ENDIF
638	ENDDO
639
640	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), &
641	id_var_domask(mid,av,ivar), total_pf, &
642	start = (/ 1, 1, 1, domask_time_count(mid,av) /), &
643	count = (/ mask_size(mid,1), mask_size(mid,2), &
644	mask_size(mid,3), 1 /) )
645	CALL netcdf_handle_error( 'data_output_mask', 462 )
646
647	ELSE
648	!
649	!-- If at least part of the mask resides on the PE, send the index
650	!-- limits for the target array, otherwise send -9999 to PE0.
651	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
652	mask_size_l(mid,3) > 0 ) &
653	THEN
654	ind(1) = mask_start_l(mid,1)
655	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
656	ind(3) = mask_start_l(mid,2)
657	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
658	ind(5) = mask_start_l(mid,3)
659	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
660	ELSE
661	ind(1) = -9999; ind(2) = -9999
662	ind(3) = -9999; ind(4) = -9999
663	ind(5) = -9999; ind(6) = -9999
664	ENDIF
665	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
666	!
667	!-- If applicable, send data to PE0.
668	IF ( ind(1) /= -9999 ) THEN
669	CALL MPI_SEND( local_pf(1,1,1), ngp, MPI_REAL, 0, 1, comm2d, &
670	ierr )
671	ENDIF
672	ENDIF
673	!
674	!-- A barrier has to be set, because otherwise some PEs may proceed too
675	!-- fast so that PE0 may receive wrong data on tag 0.
676	CALL MPI_BARRIER( comm2d, ierr )
677	#if defined( __netcdf4_parallel )
678	ENDIF
679	#endif
680	#else
681	!
682	!-- (2) For serial execution of PALM, the single processor (PE0) holds all
683	!-- data and writes them directly to file.
684	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), &
685	id_var_domask(mid,av,ivar), local_pf, &
686	start = (/ 1, 1, 1, domask_time_count(mid,av) /), &
687	count = (/ mask_size_l(mid,1), mask_size_l(mid,2),&
688	mask_size_l(mid,3), 1 /) )
689	CALL netcdf_handle_error( 'data_output_mask', 463 )
690	#endif
691
692	ivar = ivar + 1
693
694	ENDDO
695
696	!
697	!-- Deallocate temporary arrays.
698	DEALLOCATE( local_pf )
699	#if defined( __parallel )
700	IF ( myid == 0 ) THEN
701	DEALLOCATE( total_pf )
702	ENDIF
703	#endif
704
705	!
706	!-- Switch back to original format given by user (see beginning of this routine)
707	netcdf_data_format = netcdf_data_format_save
708
709	CALL cpu_log( log_point(49), 'data_output_mask', 'stop' )
710	#endif
711
712	END SUBROUTINE data_output_mask

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