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source: palm/trunk/UTIL/inifor/src/inifor_io.f90 @ 3790

Last change on this file since 3790 was 3785, checked in by eckhard, 6 years ago
inifor: Removed unused variables, improved coding style
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File size: 50.4 KB

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1	!> @file src/inifor_io.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 2017-2019 Leibniz Universitaet Hannover
18	! Copyright 2017-2019 Deutscher Wetterdienst Offenbach
19	!------------------------------------------------------------------------------!
20	!
21	! Current revisions:
22	! -----------------
23	!
24	!
25	! Former revisions:
26	! -----------------
27	! $Id: inifor_io.f90 3785 2019-03-06 10:41:14Z raasch $
28	! Temporariliy disabled height-based geostrophic wind averaging
29	! Improved variable naming
30	!
31	!
32	! 3764 2019-02-26 13:42:09Z eckhard
33	! Removed dependency on radiation input files
34	!
35	!
36	! 3716 2019-02-05 17:02:38Z eckhard
37	! Removed dependency on soilmoisture input files
38	!
39	!
40	! 3680 2019-01-18 14:54:12Z knoop
41	! Moved get_input_file_list() here from grid module, added check for presence of
42	! input files
43	!
44	!
45	!
46	!
47	! 3618 2018-12-10 13:25:22Z eckhard
48	! Prefixed all INIFOR modules with inifor_
49	!
50	!
51	! 3615 2018-12-10 07:21:03Z raasch
52	! bugfix: abort replaced by inifor_abort
53	!
54	! 3557 2018-11-22 16:01:22Z eckhard
55	! Updated documentation, removed unused subroutine write_netcdf_variable_2d()
56	!
57	!
58	! 3537 2018-11-20 10:53:14Z eckhard
59	! New routine get_netcdf_dim_vector()
60	!
61	!
62	! 3534 2018-11-19 15:35:16Z raasch
63	! bugfix: INTENT attribute changed
64	!
65	! 3456 2018-10-30 14:29:54Z eckhard
66	! NetCDf output of internal arrays only with --debug option
67	!
68	!
69	! 3447 2018-10-29 15:52:54Z eckhard
70	! Removed INCLUDE statement for get_netcdf_variable()
71	! Renamed source files for compatibilty with PALM build system
72	!
73	!
74	! 3395 2018-10-22 17:32:49Z eckhard
75	! Added command-line options for configuring the computation of geostrophic
76	! winds (--averagin-mode, --averaging-angle)
77	! Added command-line option --input-prefix for setting input file prefixes all
78	! at once
79	! Added --debug option for more verbose terminal output
80	! Added option-specific *_is_set LOGICALs to indicate invocation from the
81	! command-line
82	! Improved error messages in case of empty file-name strings
83	! Improved routine naming
84	!
85	! 3183 2018-07-27 14:25:55Z suehring
86	! Introduced new PALM grid stretching
87	! Updated variable names and metadata for PIDS v1.9 compatibility
88	! Improved handling of the start date string
89	! Better compatibility with older Intel compilers:
90	! - avoiding implicit array allocation with new get_netcdf_variable()
91	! subroutine instead of function
92	! Improved command line interface:
93	! - Added configuration validation
94	! - New options to configure input file prefixes
95	! - GNU-style short and long option names
96	! - Added version and copyright output
97	!
98	!
99	! 3182 2018-07-27 13:36:03Z suehring
100	! Initial revision
101	!
102	!
103	!
104	! Authors:
105	! --------
106	!> @author Eckhard Kadasch (Deutscher Wetterdienst, Offenbach)
107	!
108	! Description:
109	! ------------
110	!> The io module contains the functions needed to read and write netCDF data in
111	!> INIFOR.
112	!------------------------------------------------------------------------------!
113	#if defined ( __netcdf )
114	MODULE inifor_io
115
116	USE inifor_control
117	USE inifor_defs, &
118	ONLY: DATE, SNAME, PATH, PI, dp, hp, TO_RADIANS, TO_DEGREES, VERSION
119	USE inifor_types
120	USE inifor_util, &
121	ONLY: add_hours_to, reverse, str, real_to_str
122	USE netcdf
123
124	IMPLICIT NONE
125
126	!------------------------------------------------------------------------------!
127	! Description:
128	! ------------
129	!> get_netcdf_variable() reads the netCDF data and metadate for the netCDF
130	!> variable 'in_var % name' from the file 'in_file'. The netCDF data array is
131	!> stored in the 'buffer' array and metadata added to the respective members of
132	!> the given 'in_var'.
133	!------------------------------------------------------------------------------!
134	INTERFACE get_netcdf_variable
135	MODULE PROCEDURE get_netcdf_variable_int
136	MODULE PROCEDURE get_netcdf_variable_real
137	END INTERFACE get_netcdf_variable
138
139	PRIVATE :: get_netcdf_variable_int, get_netcdf_variable_real
140
141	CONTAINS
142
143	!------------------------------------------------------------------------------!
144	! Description:
145	! ------------
146	!> get_netcdf_variable_int() implements the integer variant for the
147	!> get_netcdf_variable interface.
148	!------------------------------------------------------------------------------!
149	SUBROUTINE get_netcdf_variable_int(in_file, in_var, buffer)
150
151	CHARACTER(LEN=PATH), INTENT(IN) :: in_file
152	TYPE(nc_var), INTENT(INOUT) :: in_var
153	INTEGER(hp), ALLOCATABLE, INTENT(INOUT) :: buffer(:,:,:)
154
155	INTEGER :: ncid
156	INTEGER, DIMENSION(3) :: start, count
157
158	IF ( nf90_open( TRIM(in_file), NF90_NOWRITE, ncid ) .EQ. NF90_NOERR .AND. &
159	nf90_inq_varid( ncid, in_var % name, in_var % varid ) .EQ. NF90_NOERR ) THEN
160
161	CALL get_input_dimensions(in_var, ncid)
162
163	CALL get_netcdf_start_and_count(in_var, start, count)
164	CALL run_control('time', 'read')
165
166	ALLOCATE( buffer( count(1), count(2), count(3) ) )
167	CALL run_control('time', 'alloc')
168
169	CALL check(nf90_get_var( ncid, in_var % varid, buffer, &
170	start = start, &
171	count = count ))
172
173	ELSE
174
175	message = "Failed to read '" // TRIM(in_var % name) // &
176	"' from file '" // TRIM(in_file) // "'."
177	CALL inifor_abort('get_netcdf_variable', message)
178
179	ENDIF
180
181	CALL check(nf90_close(ncid))
182	CALL run_control('time', 'read')
183
184	END SUBROUTINE get_netcdf_variable_int
185
186
187	!------------------------------------------------------------------------------!
188	! Description:
189	! ------------
190	!> get_netcdf_variable_real() implements the real variant for the
191	!> get_netcdf_variable interface.
192	!------------------------------------------------------------------------------!
193	SUBROUTINE get_netcdf_variable_real(in_file, in_var, buffer)
194
195	CHARACTER(LEN=PATH), INTENT(IN) :: in_file
196	TYPE(nc_var), INTENT(INOUT) :: in_var
197	REAL(dp), ALLOCATABLE, INTENT(INOUT) :: buffer(:,:,:)
198
199	INTEGER :: ncid
200	INTEGER, DIMENSION(3) :: start, count
201
202	IF ( nf90_open( TRIM(in_file), NF90_NOWRITE, ncid ) .EQ. NF90_NOERR .AND. &
203	nf90_inq_varid( ncid, in_var % name, in_var % varid ) .EQ. NF90_NOERR ) THEN
204
205	CALL get_input_dimensions(in_var, ncid)
206
207	CALL get_netcdf_start_and_count(in_var, start, count)
208	CALL run_control('time', 'read')
209
210	ALLOCATE( buffer( count(1), count(2), count(3) ) )
211	CALL run_control('time', 'alloc')
212
213	CALL check(nf90_get_var( ncid, in_var % varid, buffer, &
214	start = start, &
215	count = count ))
216
217	ELSE
218
219	message = "Failed to read '" // TRIM(in_var % name) // &
220	"' from file '" // TRIM(in_file) // "'."
221	CALL inifor_abort('get_netcdf_variable', message)
222
223	ENDIF
224
225	CALL check(nf90_close(ncid))
226	CALL run_control('time', 'read')
227
228	END SUBROUTINE get_netcdf_variable_real
229
230
231	!------------------------------------------------------------------------------!
232	! Description:
233	! ------------
234	!> get_netcdf_dim_vector() reads the coordinate array 'coordname' from the
235	!> netCDF file 'filename'.
236	!------------------------------------------------------------------------------!
237	SUBROUTINE get_netcdf_dim_vector(filename, coordname, coords)
238
239	CHARACTER(LEN=*), INTENT(IN) :: filename
240	CHARACTER(LEN=*), INTENT(IN) :: coordname
241	REAL(dp), ALLOCATABLE, INTENT(INOUT) :: coords(:)
242
243	INTEGER :: ncid, varid, dimlen
244	INTEGER :: dimids(NF90_MAX_VAR_DIMS)
245
246	IF ( nf90_open( TRIM(filename), NF90_NOWRITE, ncid ) .EQ. NF90_NOERR .AND. &
247	nf90_inq_varid( ncid, coordname, varid ) .EQ. NF90_NOERR ) THEN
248
249	CALL check(nf90_inquire_variable( ncid, varid, dimids = dimids ))
250	CALL check(nf90_inquire_dimension( ncid, dimids(1), len = dimlen ))
251
252	ALLOCATE(coords(dimlen))
253	CALL check(nf90_get_var( ncid, varid, coords))
254
255	ELSE
256
257	message = "Failed to read '" // TRIM(coordname) // &
258	"' from file '" // TRIM(filename) // "'."
259	CALL inifor_abort('get_netcdf_dim_vector', message)
260
261	ENDIF
262
263	END SUBROUTINE get_netcdf_dim_vector
264
265
266	!------------------------------------------------------------------------------!
267	! Description:
268	! ------------
269	!> get_input_dimensions() reads dimensions metadata of the netCDF variable given
270	!> by 'in_var % name' into 'in_var' data structure.
271	!------------------------------------------------------------------------------!
272	SUBROUTINE get_input_dimensions(in_var, ncid)
273
274	TYPE(nc_var), INTENT(INOUT) :: in_var
275	INTEGER, INTENT(IN) :: ncid
276
277	INTEGER :: i
278
279	CALL check(nf90_get_att( ncid, in_var % varid, "long_name", &
280	in_var % long_name))
281
282	CALL check(nf90_get_att( ncid, in_var % varid, "units", &
283	in_var % units ))
284
285	CALL check(nf90_inquire_variable( ncid, in_var % varid, &
286	ndims = in_var % ndim, &
287	dimids = in_var % dimids ))
288
289	DO i = 1, in_var % ndim
290	CALL check(nf90_inquire_dimension( ncid, in_var % dimids(i), &
291	name = in_var % dimname(i), &
292	len = in_var % dimlen(i) ))
293	ENDDO
294
295	END SUBROUTINE get_input_dimensions
296
297
298	!------------------------------------------------------------------------------!
299	! Description:
300	! ------------
301	!> get_netcdf_start_and_count() gets the start position and element counts for
302	!> the given netCDF file. This information is used in get_netcdf_variable_int()
303	!> and _real() for reading input variables..
304	!------------------------------------------------------------------------------!
305	SUBROUTINE get_netcdf_start_and_count(in_var, start, count)
306
307	TYPE(nc_var), INTENT(INOUT) :: in_var
308	INTEGER, DIMENSION(3), INTENT(OUT) :: start, count
309
310	INTEGER :: ndim
311
312	IF ( in_var % ndim .LT. 2 .OR. in_var % ndim .GT. 4 ) THEN
313
314	message = "Failed reading NetCDF variable " // &
315	TRIM(in_var % name) // " with " // TRIM(str(in_var % ndim)) // &
316	" dimensions because only two- and and three-dimensional" // &
317	" variables are supported."
318	CALL inifor_abort('get_netcdf_start_and_count', message)
319
320	ENDIF
321
322	start = (/ 1, 1, 1 /)
323	IF ( TRIM(in_var % name) .EQ. 'T_SO' ) THEN
324	!
325	!-- Skip depth = 0.0 for T_SO and reduce number of depths from 9 to 8
326	in_var % dimlen(3) = in_var % dimlen(3) - 1
327
328	!
329	!-- Start reading from second level, e.g. depth = 0.005 instead of 0.0
330	start(3) = 2
331	ENDIF
332
333	IF (in_var % ndim .EQ. 2) THEN
334	in_var % dimlen(3) = 1
335	ENDIF
336
337	ndim = MIN(in_var % ndim, 3)
338	count = (/ 1, 1, 1 /)
339	count(1:ndim) = in_var % dimlen(1:ndim)
340
341	END SUBROUTINE get_netcdf_start_and_count
342
343
344	!------------------------------------------------------------------------------!
345	! Description:
346	! ------------
347	!> Routine for defining netCDF variables in the dynamic driver, INIFOR's netCDF
348	!> output.
349	!------------------------------------------------------------------------------!
350	SUBROUTINE netcdf_define_variable(var, ncid)
351
352	TYPE(nc_var), INTENT(INOUT) :: var
353	INTEGER, INTENT(IN) :: ncid
354
355	CALL check(nf90_def_var(ncid, var % name, NF90_FLOAT, var % dimids(1:var % ndim), var % varid))
356	CALL check(nf90_put_att(ncid, var % varid, "long_name", var % long_name))
357	CALL check(nf90_put_att(ncid, var % varid, "units", var % units))
358	IF ( var % lod .GE. 0 ) THEN
359	CALL check(nf90_put_att(ncid, var % varid, "lod", var % lod))
360	ENDIF
361	CALL check(nf90_put_att(ncid, var % varid, "source", var % source))
362	CALL check(nf90_put_att(ncid, var % varid, "_FillValue", NF90_FILL_REAL))
363
364	END SUBROUTINE netcdf_define_variable
365
366
367	!------------------------------------------------------------------------------!
368	! Description:
369	! ------------
370	!> netcdf_get_dimensions() reads in all dimensions and their lengths and stores
371	!> them in the given the 'var' data structure. This information is used later
372	!> for writing output variables in update_output().
373	!------------------------------------------------------------------------------!
374	SUBROUTINE netcdf_get_dimensions(var, ncid)
375
376	TYPE(nc_var), INTENT(INOUT) :: var
377	INTEGER, INTENT(IN) :: ncid
378	INTEGER :: i
379	CHARACTER(SNAME) :: null
380
381	DO i = 1, var % ndim
382	CALL check(nf90_inquire_dimension(ncid, var % dimids(i), &
383	name = null, &
384	len = var % dimlen(i) ) )
385	ENDDO
386
387	END SUBROUTINE netcdf_get_dimensions
388
389
390	!------------------------------------------------------------------------------!
391	! Description:
392	! ------------
393	!> This routine parses and interpretes the command-line options and stores the
394	!> resulting settings in the 'cfg' data structure.
395	!------------------------------------------------------------------------------!
396	SUBROUTINE parse_command_line_arguments( cfg )
397
398	TYPE(inifor_config), INTENT(INOUT) :: cfg
399
400	CHARACTER(LEN=PATH) :: option, arg
401	INTEGER :: arg_count, i
402
403	cfg % p0_is_set = .FALSE.
404	cfg % ug_defined_by_user = .FALSE.
405	cfg % vg_defined_by_user = .FALSE.
406	cfg % flow_prefix_is_set = .FALSE.
407	cfg % input_prefix_is_set = .FALSE.
408	cfg % radiation_prefix_is_set = .FALSE.
409	cfg % soil_prefix_is_set = .FALSE.
410	cfg % soilmoisture_prefix_is_set = .FALSE.
411
412	arg_count = COMMAND_ARGUMENT_COUNT()
413	IF (arg_count .GT. 0) THEN
414
415	message = "The -clon and -clat command line options are depricated. " // &
416	"Please remove them form your inifor command and specify the " // &
417	"location of the PALM-4U origin either" // NEW_LINE(' ') // &
418	" - by setting the namelist parameters 'longitude' and 'latitude', or" // NEW_LINE(' ') // &
419	" - by providing a static driver netCDF file via the -static command-line option."
420
421	i = 1
422	DO WHILE (i .LE. arg_count)
423
424	CALL GET_COMMAND_ARGUMENT( i, option )
425
426	SELECT CASE( TRIM(option) )
427
428	CASE( '--averaging-mode' )
429	CALL get_option_argument( i, arg )
430	cfg % averaging_mode = TRIM(arg)
431
432	CASE( '-date', '-d', '--date' )
433	CALL get_option_argument( i, arg )
434	cfg % start_date = TRIM(arg)
435
436	CASE( '--debug' )
437	cfg % debug = .TRUE.
438
439	CASE( '-z0', '-z', '--elevation' )
440	CALL get_option_argument( i, arg )
441	READ(arg, *) cfg % z0
442
443	CASE( '-p0', '-r', '--surface-pressure' )
444	cfg % p0_is_set = .TRUE.
445	CALL get_option_argument( i, arg )
446	READ(arg, *) cfg % p0
447
448	CASE( '-ug', '-u', '--geostrophic-u' )
449	cfg % ug_defined_by_user = .TRUE.
450	CALL get_option_argument( i, arg )
451	READ(arg, *) cfg % ug
452
453	CASE( '-vg', '-v', '--geostrophic-v' )
454	cfg % vg_defined_by_user = .TRUE.
455	CALL get_option_argument( i, arg )
456	READ(arg, *) cfg % vg
457
458	CASE( '-clon', '-clat' )
459	CALL inifor_abort('parse_command_line_arguments', message)
460
461	CASE( '-path', '-p', '--path' )
462	CALL get_option_argument( i, arg )
463	cfg % input_path = TRIM(arg)
464
465	CASE( '-hhl', '-l', '--hhl-file' )
466	CALL get_option_argument( i, arg )
467	cfg % hhl_file = TRIM(arg)
468
469	CASE( '--input-prefix')
470	CALL get_option_argument( i, arg )
471	cfg % input_prefix = TRIM(arg)
472	cfg % input_prefix_is_set = .TRUE.
473
474	CASE( '-a', '--averaging-angle' )
475	CALL get_option_argument( i, arg )
476	READ(arg, *) cfg % averaging_angle
477
478	CASE( '-static', '-t', '--static-driver' )
479	CALL get_option_argument( i, arg )
480	cfg % static_driver_file = TRIM(arg)
481
482	CASE( '-soil', '-s', '--soil-file')
483	CALL get_option_argument( i, arg )
484	cfg % soiltyp_file = TRIM(arg)
485
486	CASE( '--flow-prefix')
487	CALL get_option_argument( i, arg )
488	cfg % flow_prefix = TRIM(arg)
489	cfg % flow_prefix_is_set = .TRUE.
490
491	CASE( '--radiation-prefix')
492	CALL get_option_argument( i, arg )
493	cfg % radiation_prefix = TRIM(arg)
494	cfg % radiation_prefix_is_set = .TRUE.
495
496	CASE( '--soil-prefix')
497	CALL get_option_argument( i, arg )
498	cfg % soil_prefix = TRIM(arg)
499	cfg % soil_prefix_is_set = .TRUE.
500
501	CASE( '--soilmoisture-prefix')
502	CALL get_option_argument( i, arg )
503	cfg % soilmoisture_prefix = TRIM(arg)
504	cfg % soilmoisture_prefix_is_set = .TRUE.
505
506	CASE( '-o', '--output' )
507	CALL get_option_argument( i, arg )
508	cfg % output_file = TRIM(arg)
509
510	CASE( '-n', '--namelist' )
511	CALL get_option_argument( i, arg )
512	cfg % namelist_file = TRIM(arg)
513
514	CASE( '-mode', '-i', '--init-mode' )
515	CALL get_option_argument( i, arg )
516	cfg % ic_mode = TRIM(arg)
517
518	CASE( '-f', '--forcing-mode' )
519	CALL get_option_argument( i, arg )
520	cfg % bc_mode = TRIM(arg)
521
522	CASE( '--version' )
523	CALL print_version()
524	STOP
525
526	CASE( '--help' )
527	CALL print_version()
528	PRINT *, ""
529	PRINT *, "For a list of command-line options have a look at the README file."
530	STOP
531
532	CASE DEFAULT
533	message = "unknown option '" // TRIM(option) // "'."
534	CALL inifor_abort('parse_command_line_arguments', message)
535
536	END SELECT
537
538	i = i + 1
539
540	ENDDO
541
542	ELSE
543
544	message = "No arguments present, using default input and output files"
545	CALL report('parse_command_line_arguments', message)
546
547	ENDIF
548
549	END SUBROUTINE parse_command_line_arguments
550
551
552
553	SUBROUTINE get_datetime_file_list( start_date_string, start_hour, end_hour, &
554	step_hour, input_path, prefix, suffix, &
555	file_list )
556
557	CHARACTER (LEN=DATE), INTENT(IN) :: start_date_string
558	CHARACTER (LEN=*), INTENT(IN) :: prefix, suffix, input_path
559	INTEGER, INTENT(IN) :: start_hour, end_hour, step_hour
560	CHARACTER(LEN=*), ALLOCATABLE, INTENT(INOUT) :: file_list(:)
561
562	INTEGER :: number_of_intervals, hour, i
563	CHARACTER(LEN=DATE) :: date_string
564
565	number_of_intervals = CEILING( REAL(end_hour - start_hour) / step_hour )
566	ALLOCATE( file_list(number_of_intervals + 1) )
567
568	DO i = 0, number_of_intervals
569
570	hour = start_hour + i * step_hour
571	date_string = add_hours_to(start_date_string, hour)
572
573	file_list(i+1) = TRIM(input_path) // TRIM(prefix) // &
574	TRIM(date_string) // TRIM(suffix) // '.nc'
575
576	ENDDO
577
578	END SUBROUTINE get_datetime_file_list
579
580	!------------------------------------------------------------------------------!
581	! Description:
582	! ------------
583	!> Establish a list of files based on the given start and end times and file
584	!> prefixes and suffixes.
585	!------------------------------------------------------------------------------!
586	SUBROUTINE get_input_file_list( start_date_string, start_hour, end_hour, &
587	step_hour, input_path, prefix, suffix, &
588	file_list, nocheck )
589
590	CHARACTER (LEN=DATE), INTENT(IN) :: start_date_string
591	CHARACTER (LEN=*), INTENT(IN) :: prefix, suffix, input_path
592	INTEGER, INTENT(IN) :: start_hour, end_hour, step_hour
593	CHARACTER(LEN=*), ALLOCATABLE, INTENT(INOUT) :: file_list(:)
594	LOGICAL, OPTIONAL, INTENT(IN) :: nocheck
595
596	INTEGER :: i
597	LOGICAL :: check_files
598
599	CALL get_datetime_file_list( start_date_string, start_hour, end_hour, &
600	step_hour, input_path, prefix, suffix, &
601	file_list )
602
603	check_files = .TRUE.
604	IF ( PRESENT ( nocheck ) ) THEN
605	IF ( nocheck ) check_files = .FALSE.
606	ENDIF
607
608	IF ( check_files ) THEN
609
610	tip = "Please check if you specified the correct file prefix " // &
611	"using the options --input-prefix, --flow-prefix, etc."
612
613	DO i = 1, SIZE(file_list)
614	CALL verify_file(file_list(i), 'input', tip)
615	ENDDO
616
617	ENDIF
618
619	END SUBROUTINE get_input_file_list
620
621
622	!------------------------------------------------------------------------------!
623	! Description:
624	! ------------
625	!> Abort INIFOR if the given file is not present.
626	!------------------------------------------------------------------------------!
627	SUBROUTINE verify_file(file_name, file_kind, tip)
628
629	CHARACTER(LEN=*), INTENT(IN) :: file_name, file_kind
630	CHARACTER(LEN=*), INTENT(IN), OPTIONAL :: tip
631
632	IF (.NOT. file_present(file_name)) THEN
633
634	IF (LEN(TRIM(file_name)) == 0) THEN
635
636	message = "No name was given for the " // TRIM(file_kind) // " file."
637
638	ELSE
639
640	message = "The " // TRIM(file_kind) // " file '" // &
641	TRIM(file_name) // "' was not found."
642
643	IF (PRESENT(tip)) THEN
644	message = TRIM(message) // " " // TRIM(tip)
645	ENDIF
646
647	ENDIF
648
649	CALL inifor_abort('verify_file', message)
650
651	ENDIF
652
653	message = "Set up input file name '" // TRIM(file_name) // "'"
654	CALL report('verify_file', message)
655
656	END SUBROUTINE verify_file
657
658
659	!------------------------------------------------------------------------------!
660	! Description:
661	! ------------
662	!> Get the argument of the i'th command line option, which is at the location
663	!> i+1 of the argument list.
664	!------------------------------------------------------------------------------!
665	SUBROUTINE get_option_argument(i, arg)
666	CHARACTER(LEN=PATH), INTENT(INOUT) :: arg
667	INTEGER, INTENT(INOUT) :: i
668
669	i = i + 1
670	CALL GET_COMMAND_ARGUMENT(i, arg)
671
672	END SUBROUTINE
673
674
675	!------------------------------------------------------------------------------!
676	! Description:
677	! ------------
678	!> Checks the INIFOR configuration 'cfg' for plausibility.
679	!------------------------------------------------------------------------------!
680	SUBROUTINE validate_config(cfg)
681	TYPE(inifor_config), INTENT(IN) :: cfg
682
683	CALL verify_file(cfg % hhl_file, 'HHL')
684	CALL verify_file(cfg % namelist_file, 'NAMELIST')
685	CALL verify_file(cfg % soiltyp_file, 'SOILTYP')
686
687	!
688	!-- Only check optional static driver file name, if it has been given.
689	IF (TRIM(cfg % static_driver_file) .NE. '') THEN
690	CALL verify_file(cfg % static_driver_file, 'static driver')
691	ENDIF
692
693	SELECT CASE( TRIM(cfg % ic_mode) )
694	CASE( 'profile', 'volume')
695	CASE DEFAULT
696	message = "Initialization mode '" // TRIM(cfg % ic_mode) //&
697	"' is not supported. " //&
698	"Please select either 'profile' or 'volume', " //&
699	"or omit the -i/--init-mode/-mode option entirely, which corresponds "//&
700	"to the latter."
701	CALL inifor_abort( 'validate_config', message )
702	END SELECT
703
704
705	SELECT CASE( TRIM(cfg % bc_mode) )
706	CASE( 'real', 'ideal')
707	CASE DEFAULT
708	message = "Forcing mode '" // TRIM(cfg % bc_mode) //&
709	"' is not supported. " //&
710	"Please select either 'real' or 'ideal', " //&
711	"or omit the -f/--forcing-mode option entirely, which corresponds "//&
712	"to the latter."
713	CALL inifor_abort( 'validate_config', message )
714	END SELECT
715
716	SELECT CASE( TRIM(cfg % averaging_mode) )
717	CASE( 'level' )
718	CASE( 'height' )
719	message = "Averaging mode '" // TRIM(cfg % averaging_mode) //&
720	"' is currently not supported. " //&
721	"Please use level-based averaging by selecting 'level', " //&
722	"or by omitting the --averaging-mode option entirely."
723	CALL inifor_abort( 'validate_config', message )
724	CASE DEFAULT
725	message = "Averaging mode '" // TRIM(cfg % averaging_mode) //&
726	"' is not supported. " //&
727	! "Please select either 'height' or 'level', " //&
728	! "or omit the --averaging-mode option entirely, which corresponds "//&
729	! "to the latter."
730	"Please use level-based averaging by selecting 'level', " //&
731	"or by omitting the --averaging-mode option entirely."
732	CALL inifor_abort( 'validate_config', message )
733	END SELECT
734
735	IF ( cfg % ug_defined_by_user .NEQV. cfg % vg_defined_by_user ) THEN
736	message = "You specified only one component of the geostrophic " // &
737	"wind. Please specify either both or none."
738	CALL inifor_abort( 'validate_config', message )
739	ENDIF
740
741	END SUBROUTINE validate_config
742
743
744	!------------------------------------------------------------------------------!
745	! Description:
746	! ------------
747	!> Check whether the given file is present on the filesystem.
748	!------------------------------------------------------------------------------!
749	LOGICAL FUNCTION file_present(filename)
750	CHARACTER(LEN=PATH), INTENT(IN) :: filename
751
752	INQUIRE(FILE=filename, EXIST=file_present)
753
754	END FUNCTION file_present
755
756
757	!------------------------------------------------------------------------------!
758	! Description:
759	! ------------
760	!> This routine initializes the dynamic driver file, i.e. INIFOR's netCDF output
761	!> file.
762	!>
763	!> Besides writing metadata, such as global attributes, coordinates, variables,
764	!> in the netCDF file, various netCDF IDs are saved for later, when INIFOR
765	!> writes the actual data.
766	!------------------------------------------------------------------------------!
767	SUBROUTINE setup_netcdf_dimensions(output_file, palm_grid, &
768	start_date_string, origin_lon, origin_lat)
769
770	TYPE(nc_file), INTENT(INOUT) :: output_file
771	TYPE(grid_definition), INTENT(IN) :: palm_grid
772	CHARACTER (LEN=DATE), INTENT(IN) :: start_date_string
773	REAL(dp), INTENT(IN) :: origin_lon, origin_lat
774
775	CHARACTER (LEN=8) :: date_string
776	CHARACTER (LEN=10) :: time_string
777	CHARACTER (LEN=5) :: zone_string
778	CHARACTER (LEN=SNAME) :: history_string
779	INTEGER :: ncid, nx, ny, nz, nt, dimids(3), dimvarids(3)
780	REAL(dp) :: z0
781
782	message = "Initializing PALM-4U dynamic driver file '" // &
783	TRIM(output_file % name) // "' and setting up dimensions."
784	CALL report('setup_netcdf_dimensions', message)
785
786	!
787	!-- Create the netCDF file as in netCDF-4/HDF5 format if __netcdf4 preprocessor flag is given
788	#if defined( __netcdf4 )
789	CALL check(nf90_create(TRIM(output_file % name), OR(NF90_CLOBBER, NF90_HDF5), ncid))
790	#else
791	CALL check(nf90_create(TRIM(output_file % name), NF90_CLOBBER, ncid))
792	#endif
793
794	!------------------------------------------------------------------------------
795	!- Section 1: Define NetCDF dimensions and coordinates
796	!------------------------------------------------------------------------------
797	nt = SIZE(output_file % time)
798	nx = palm_grid % nx
799	ny = palm_grid % ny
800	nz = palm_grid % nz
801	z0 = palm_grid % z0
802
803
804	!
805	!------------------------------------------------------------------------------
806	!- Section 2: Write global NetCDF attributes
807	!------------------------------------------------------------------------------
808	CALL date_and_time(DATE=date_string, TIME=time_string, ZONE=zone_string)
809	history_string = &
810	'Created on '// date_string // &
811	' at ' // time_string(1:2) // ':' // time_string(3:4) // &
812	' (UTC' // zone_string // ')'
813
814	CALL check(nf90_put_att(ncid, NF90_GLOBAL, 'title', 'PALM input file for scenario ...'))
815	CALL check(nf90_put_att(ncid, NF90_GLOBAL, 'institution', 'Deutscher Wetterdienst, Offenbach'))
816	CALL check(nf90_put_att(ncid, NF90_GLOBAL, 'author', 'Eckhard Kadasch, eckhard.kadasch@dwd.de'))
817	CALL check(nf90_put_att(ncid, NF90_GLOBAL, 'history', TRIM(history_string)))
818	CALL check(nf90_put_att(ncid, NF90_GLOBAL, 'references', '--'))
819	CALL check(nf90_put_att(ncid, NF90_GLOBAL, 'comment', '--'))
820	CALL check(nf90_put_att(ncid, NF90_GLOBAL, 'origin_lat', TRIM(real_to_str(origin_lat*TO_DEGREES, '(F18.13)'))))
821	CALL check(nf90_put_att(ncid, NF90_GLOBAL, 'origin_lon', TRIM(real_to_str(origin_lon*TO_DEGREES, '(F18.13)'))))
822	!
823	!-- FIXME: This is the elevation relative to COSMO-DE/D2 sea level and does
824	!-- FIXME: not necessarily comply with DHHN2016 (c.f. PALM Input Data
825	!-- FIXME: Standard v1.9., origin_z)
826	CALL check(nf90_put_att(ncid, NF90_GLOBAL, 'origin_z', TRIM(real_to_str(z0, '(F18.13)'))))
827	CALL check(nf90_put_att(ncid, NF90_GLOBAL, 'inifor_version', TRIM(VERSION)))
828	CALL check(nf90_put_att(ncid, NF90_GLOBAL, 'palm_version', '--'))
829
830	!
831	!
832	!------------------------------------------------------------------------------
833	!- Section 2a: Define dimensions for cell centers (scalars in soil and atmosph.)
834	!------------------------------------------------------------------------------
835	!
836	!-- reset dimids first
837	dimids = (/0, 0, 0/)
838	CALL check( nf90_def_dim(ncid, "x", nx+1, dimids(1)) )
839	CALL check( nf90_def_dim(ncid, "y", ny+1, dimids(2)) )
840	CALL check( nf90_def_dim(ncid, "z", nz, dimids(3)) )
841	!
842	!-- save dimids for later
843	output_file % dimids_scl = dimids
844
845	!
846	!-- reset dimvarids first
847	dimvarids = (/0, 0, 0/)
848	CALL check(nf90_def_var(ncid, "x", NF90_FLOAT, dimids(1), dimvarids(1)))
849	CALL check(nf90_put_att(ncid, dimvarids(1), "standard_name", "x coordinate of cell centers"))
850	CALL check(nf90_put_att(ncid, dimvarids(1), "units", "m"))
851
852	CALL check(nf90_def_var(ncid, "y", NF90_FLOAT, dimids(2), dimvarids(2)))
853	CALL check(nf90_put_att(ncid, dimvarids(2), "standard_name", "y coordinate of cell centers"))
854	CALL check(nf90_put_att(ncid, dimvarids(2), "units", "m"))
855
856	CALL check(nf90_def_var(ncid, "z", NF90_FLOAT, dimids(3), dimvarids(3)))
857	CALL check(nf90_put_att(ncid, dimvarids(3), "standard_name", "z coordinate of cell centers"))
858	CALL check(nf90_put_att(ncid, dimvarids(3), "units", "m"))
859	!
860	!-- save dimvarids for later
861	output_file % dimvarids_scl = dimvarids
862
863	!
864	!-- overwrite third dimid with the one of depth
865	CALL check(nf90_def_dim(ncid, "zsoil", SIZE(palm_grid % depths), dimids(3)) )
866	!
867	!-- save dimids for later
868	output_file % dimids_soil = dimids
869
870	!
871	!-- overwrite third dimvarid with the one of depth
872	CALL check(nf90_def_var(ncid, "zsoil", NF90_FLOAT, output_file % dimids_soil(3), dimvarids(3)))
873	CALL check(nf90_put_att(ncid, dimvarids(3), "standard_name", "depth_below_land"))
874	CALL check(nf90_put_att(ncid, dimvarids(3), "positive", "down"))
875	CALL check(nf90_put_att(ncid, dimvarids(3), "units", "m"))
876	!
877	!-- save dimvarids for later
878	output_file % dimvarids_soil = dimvarids
879	!
880	!------------------------------------------------------------------------------
881	!- Section 2b: Define dimensions for cell faces/velocities
882	!------------------------------------------------------------------------------
883	!
884	!-- reset dimids first
885	dimids = (/0, 0, 0/)
886	CALL check(nf90_def_dim(ncid, "xu", nx, dimids(1)) )
887	CALL check(nf90_def_dim(ncid, "yv", ny, dimids(2)) )
888	CALL check(nf90_def_dim(ncid, "zw", nz-1, dimids(3)) )
889	!
890	!-- save dimids for later
891	output_file % dimids_vel = dimids
892
893	!
894	!-- reset dimvarids first
895	dimvarids = (/0, 0, 0/)
896	CALL check(nf90_def_var(ncid, "xu", NF90_FLOAT, dimids(1), dimvarids(1)))
897	CALL check(nf90_put_att(ncid, dimvarids(1), "standard_name", "x coordinate of cell faces"))
898	CALL check(nf90_put_att(ncid, dimvarids(1), "units", "m"))
899
900	CALL check(nf90_def_var(ncid, "yv", NF90_FLOAT, dimids(2), dimvarids(2)))
901	CALL check(nf90_put_att(ncid, dimvarids(2), "standard_name", "y coordinate of cell faces"))
902	CALL check(nf90_put_att(ncid, dimvarids(2), "units", "m"))
903
904	CALL check(nf90_def_var(ncid, "zw", NF90_FLOAT, dimids(3), dimvarids(3)))
905	CALL check(nf90_put_att(ncid, dimvarids(3), "standard_name", "z coordinate of cell faces"))
906	CALL check(nf90_put_att(ncid, dimvarids(3), "units", "m"))
907	!
908	!-- save dimvarids for later
909	output_file % dimvarids_vel = dimvarids
910
911	!
912	!------------------------------------------------------------------------------
913	!- Section 2c: Define time dimension
914	!------------------------------------------------------------------------------
915	CALL check(nf90_def_dim(ncid, "time", nt, output_file % dimid_time) )
916	CALL check(nf90_def_var(ncid, "time", NF90_FLOAT, &
917	output_file % dimid_time, &
918	output_file % dimvarid_time))
919	CALL check(nf90_put_att(ncid, output_file % dimvarid_time, "standard_name", "time"))
920	CALL check(nf90_put_att(ncid, output_file % dimvarid_time, "long_name", "time"))
921	CALL check(nf90_put_att(ncid, output_file % dimvarid_time, "units", &
922	"seconds since " // start_date_string // " UTC"))
923
924	CALL check(nf90_enddef(ncid))
925
926	!
927	!------------------------------------------------------------------------------
928	!- Section 3: Write grid coordinates
929	!------------------------------------------------------------------------------
930	CALL check(nf90_put_var(ncid, output_file % dimvarids_scl(1), palm_grid%x))
931	CALL check(nf90_put_var(ncid, output_file % dimvarids_scl(2), palm_grid%y))
932	CALL check(nf90_put_var(ncid, output_file % dimvarids_scl(3), palm_grid%z))
933
934	CALL check(nf90_put_var(ncid, output_file % dimvarids_vel(1), palm_grid%xu))
935	CALL check(nf90_put_var(ncid, output_file % dimvarids_vel(2), palm_grid%yv))
936	CALL check(nf90_put_var(ncid, output_file % dimvarids_vel(3), palm_grid%zw))
937
938	!
939	!-- TODO Read in soil depths from input file before this.
940	CALL check(nf90_put_var(ncid, output_file % dimvarids_soil(3), palm_grid%depths))
941
942	!
943	!-- Write time vector
944	CALL check(nf90_put_var(ncid, output_file % dimvarid_time, output_file % time))
945
946	!
947	!-- Close the file
948	CALL check(nf90_close(ncid))
949
950	END SUBROUTINE setup_netcdf_dimensions
951
952
953	!------------------------------------------------------------------------------!
954	! Description:
955	! ------------
956	!> Defines the netCDF variables to be written to the dynamic driver file
957	!------------------------------------------------------------------------------!
958	SUBROUTINE setup_netcdf_variables(filename, output_variable_table)
959
960	CHARACTER (LEN=*), INTENT(IN) :: filename
961	TYPE(nc_var), INTENT(INOUT), TARGET :: output_variable_table(:)
962
963	TYPE(nc_var), POINTER :: var
964	INTEGER :: i, ncid
965	LOGICAL :: to_be_written
966
967	message = "Defining variables in dynamic driver '" // TRIM(filename) // "'."
968	CALL report('setup_netcdf_variables', message)
969
970	CALL check(nf90_open(TRIM(filename), NF90_WRITE, ncid))
971	CALL check(nf90_redef(ncid))
972
973	DO i = 1, SIZE(output_variable_table)
974
975	var => output_variable_table(i)
976
977	!to_be_written = ( var % to_be_processed .AND. .NOT. var % is_internal) .OR. &
978	! ( var % is_internal .AND. debug )
979	to_be_written = ( var % to_be_processed .AND. .NOT. var % is_internal)
980
981	IF ( to_be_written ) THEN
982	message = " variable #" // TRIM(str(i)) // " '" // TRIM(var%name) // "'."
983	CALL report('setup_netcdf_variables', message)
984
985	CALL netcdf_define_variable(var, ncid)
986	CALL netcdf_get_dimensions(var, ncid)
987	ENDIF
988
989	ENDDO
990
991	CALL check(nf90_enddef(ncid))
992	CALL check(nf90_close(ncid))
993
994	message = "Dynamic driver '" // TRIM(filename) // "' initialized successfully."
995	CALL report('setup_netcdf_variables', message)
996
997	END SUBROUTINE setup_netcdf_variables
998
999
1000	!------------------------------------------------------------------------------!
1001	! Description:
1002	! ------------
1003	!> This routine reads and returns all input variables of the given IO group
1004	!> It accomodates the data by allocating a container variable that represents a
1005	!> list of arrays of the same length as the groups variable list. (This list
1006	!> will typically contain one or two items.) After the container, its members
1007	!> are allocated one by one with the appropriate, possibly different,
1008	!> dimensions.
1009	!>
1010	!> The 'group' is an INTENT(INOUT) variable so that 'get_netcdf_variable()' can
1011	!> record netCDF IDs in the 'in_var_list()' member variable.
1012	!------------------------------------------------------------------------------!
1013	SUBROUTINE read_input_variables(group, iter, buffer)
1014	TYPE(io_group), INTENT(INOUT), TARGET :: group
1015	INTEGER, INTENT(IN) :: iter
1016	TYPE(container), ALLOCATABLE, INTENT(INOUT) :: buffer(:)
1017	INTEGER :: hour, buf_id
1018	TYPE(nc_var), POINTER :: input_var
1019	CHARACTER(LEN=PATH), POINTER :: input_file
1020	INTEGER :: ivar, nbuffers
1021
1022	message = "Reading data for I/O group '" // TRIM(group % in_var_list(1) % name) // "'."
1023	CALL report('read_input_variables', message)
1024
1025	input_file => group % in_files(iter)
1026
1027	!
1028	!------------------------------------------------------------------------------
1029	!- Section 1: Load input buffers for accumulated variables
1030	!------------------------------------------------------------------------------
1031	!
1032	!-- radiation budgets, precipitation
1033	IF (group % kind == 'running average' .OR. &
1034	group % kind == 'accumulated') THEN
1035
1036	IF (SIZE(group % in_var_list) .GT. 1 ) THEN
1037	message = "I/O groups may not contain more than one " // &
1038	"accumulated variable. Group '" // TRIM(group % kind) //&
1039	"' contains " // &
1040	TRIM( str(SIZE(group % in_var_list)) ) // "."
1041	CALL inifor_abort('read_input_variables \| accumulation', message)
1042	ENDIF
1043
1044	!
1045	!-- use two buffer arrays
1046	nbuffers = 2
1047	IF ( .NOT. ALLOCATED( buffer ) ) ALLOCATE( buffer(nbuffers) )
1048
1049	!
1050	!-- hour of the day
1051	hour = iter - 1
1052	!
1053	!-- chose correct buffer array
1054	buf_id = select_buffer(hour)
1055
1056	CALL run_control('time', 'read')
1057	IF ( ALLOCATED(buffer(buf_id) % array) ) DEALLOCATE(buffer(buf_id) % array)
1058	CALL run_control('time', 'alloc')
1059
1060	input_var => group % in_var_list(1)
1061	CALL get_netcdf_variable(input_file, input_var, buffer(buf_id) % array)
1062	CALL report('read_input_variables', "Read accumulated " // TRIM(group % in_var_list(1) % name))
1063
1064	IF ( input_var % is_upside_down ) CALL reverse(buffer(buf_id) % array)
1065	CALL run_control('time', 'comp')
1066
1067	!------------------------------------------------------------------------------
1068	!- Section 2: Load input buffers for normal I/O groups
1069	!------------------------------------------------------------------------------
1070	ELSE
1071
1072	!
1073	!-- Allocate one input buffer per input_variable. If more quantities
1074	!-- have to be computed than input variables exist in this group,
1075	!-- allocate more buffers. For instance, in the thermodynamics group,
1076	!-- there are three input variabels (PP, T, Qv) and four quantities
1077	!-- necessart (P, Theta, Rho, qv) for the corresponding output fields
1078	!-- (p0, Theta, qv, ug, and vg)
1079	nbuffers = MAX( group % n_inputs, group % n_output_quantities )
1080	ALLOCATE( buffer(nbuffers) )
1081	CALL run_control('time', 'alloc')
1082
1083	!
1084	!-- Read in all input variables, leave extra buffers-if any-untouched.
1085	DO ivar = 1, group % n_inputs
1086
1087	input_var => group % in_var_list(ivar)
1088
1089	!
1090	! Check wheather P or PP is present in input file
1091	IF (input_var % name == 'P') THEN
1092	input_var % name = TRIM( get_pressure_varname(input_file) )
1093	CALL run_control('time', 'read')
1094	ENDIF
1095
1096	CALL get_netcdf_variable(input_file, input_var, buffer(ivar) % array)
1097
1098	IF ( input_var % is_upside_down ) CALL reverse(buffer(ivar) % array)
1099	CALL run_control('time', 'comp')
1100
1101	ENDDO
1102	ENDIF
1103
1104	END SUBROUTINE read_input_variables
1105
1106
1107	!------------------------------------------------------------------------------!
1108	! Description:
1109	! ------------
1110	!> Select the appropriate buffer ID for accumulated COSMO input variables
1111	!> depending on the current hour.
1112	!------------------------------------------------------------------------------!
1113	INTEGER FUNCTION select_buffer(hour)
1114	INTEGER, INTENT(IN) :: hour
1115	INTEGER :: step
1116
1117	select_buffer = 0
1118	step = MODULO(hour, 3) + 1
1119
1120	SELECT CASE(step)
1121	CASE(1, 3)
1122	select_buffer = 1
1123	CASE(2)
1124	select_buffer = 2
1125	CASE DEFAULT
1126	message = "Invalid step '" // TRIM(str(step))
1127	CALL inifor_abort('select_buffer', message)
1128	END SELECT
1129	END FUNCTION select_buffer
1130
1131
1132	!------------------------------------------------------------------------------!
1133	! Description:
1134	! ------------
1135	!> Checks if the input_file contains the absolute pressure, 'P', or the pressure
1136	!> perturbation, 'PP', and returns the appropriate string.
1137	!------------------------------------------------------------------------------!
1138	CHARACTER(LEN=2) FUNCTION get_pressure_varname(input_file) RESULT(var)
1139	CHARACTER(LEN=*) :: input_file
1140	INTEGER :: ncid, varid
1141
1142	CALL check(nf90_open( TRIM(input_file), NF90_NOWRITE, ncid ))
1143	IF ( nf90_inq_varid( ncid, 'P', varid ) .EQ. NF90_NOERR ) THEN
1144
1145	var = 'P'
1146
1147	ELSE IF ( nf90_inq_varid( ncid, 'PP', varid ) .EQ. NF90_NOERR ) THEN
1148
1149	var = 'PP'
1150	CALL report('get_pressure_var', 'Using PP instead of P')
1151
1152	ELSE
1153
1154	message = "Failed to read '" // TRIM(var) // &
1155	"' from file '" // TRIM(input_file) // "'."
1156	CALL inifor_abort('get_pressure_var', message)
1157
1158	ENDIF
1159
1160	CALL check(nf90_close(ncid))
1161
1162	END FUNCTION get_pressure_varname
1163
1164
1165	!------------------------------------------------------------------------------!
1166	! Description:
1167	! ------------
1168	!> Read the given global attribute form the given netCDF file.
1169	!------------------------------------------------------------------------------!
1170	FUNCTION get_netcdf_attribute(filename, attribute) RESULT(attribute_value)
1171
1172	CHARACTER(LEN=*), INTENT(IN) :: filename, attribute
1173	REAL(dp) :: attribute_value
1174
1175	INTEGER :: ncid
1176
1177	IF ( nf90_open( TRIM(filename), NF90_NOWRITE, ncid ) == NF90_NOERR ) THEN
1178
1179	CALL check(nf90_get_att(ncid, NF90_GLOBAL, TRIM(attribute), attribute_value))
1180	CALL check(nf90_close(ncid))
1181
1182	ELSE
1183
1184	message = "Failed to read '" // TRIM(attribute) // &
1185	"' from file '" // TRIM(filename) // "'."
1186	CALL inifor_abort('get_netcdf_attribute', message)
1187
1188	ENDIF
1189
1190	END FUNCTION get_netcdf_attribute
1191
1192
1193
1194	!------------------------------------------------------------------------------!
1195	! Description:
1196	! ------------
1197	!> Updates the dynamic driver with the interpolated field of the current
1198	!> variable at the current time step.
1199	!------------------------------------------------------------------------------!
1200	SUBROUTINE update_output(var, array, iter, output_file, cfg)
1201	TYPE(nc_var), INTENT(IN) :: var
1202	REAL(dp), INTENT(IN) :: array(:,:,:)
1203	INTEGER, INTENT(IN) :: iter
1204	TYPE(nc_file), INTENT(IN) :: output_file
1205	TYPE(inifor_config) :: cfg
1206
1207	INTEGER :: ncid, ndim, start(4), count(4)
1208	LOGICAL :: var_is_time_dependent
1209
1210	var_is_time_dependent = ( &
1211	var % dimids( var % ndim ) == output_file % dimid_time &
1212	)
1213
1214	!
1215	!-- Skip time dimension for output
1216	ndim = var % ndim
1217	IF ( var_is_time_dependent ) ndim = var % ndim - 1
1218
1219	start(:) = (/1,1,1,1/)
1220	start(ndim+1) = iter
1221	count(1:ndim) = var%dimlen(1:ndim)
1222
1223	CALL check(nf90_open(output_file % name, NF90_WRITE, ncid))
1224
1225	!
1226	!-- Reduce dimension of output array according to variable kind
1227	SELECT CASE (TRIM(var % kind))
1228
1229	CASE ( 'init scalar profile', 'init u profile', 'init v profile', &
1230	'init w profile' )
1231
1232	CALL check(nf90_put_var( ncid, var%varid, array(1,1,:) ) )
1233
1234	CASE ( 'init soil', 'init scalar', 'init u', 'init v', 'init w' )
1235
1236	CALL check(nf90_put_var( ncid, var%varid, array(:,:,:) ) )
1237
1238	CASE( 'left scalar', 'right scalar', 'left w', 'right w' )
1239
1240	CALL check(nf90_put_var( ncid, var%varid, array(1,:,:), &
1241	start=start(1:ndim+1), &
1242	count=count(1:ndim) ) )
1243
1244
1245	IF (.NOT. SIZE(array, 2) .EQ. var % dimlen(1)) THEN
1246	PRINT *, "inifor: update_output: Dimension ", 1, " of variable ", &
1247	TRIM(var % name), " (", var % dimlen(1), &
1248	") does not match the dimension of the output array (", &
1249	SIZE(array, 2), ")."
1250	STOP
1251	ENDIF
1252
1253
1254	CASE( 'north scalar', 'south scalar', 'north w', 'south w' )
1255
1256	CALL check(nf90_put_var( ncid, var%varid, array(:,1,:), &
1257	start=start(1:ndim+1), &
1258	count=count(1:ndim) ) )
1259
1260
1261	CASE( 'surface forcing', 'top scalar', 'top w' )
1262
1263	CALL check(nf90_put_var( ncid, var%varid, array(:,:,1), &
1264	start=start(1:ndim+1), &
1265	count=count(1:ndim) ) )
1266
1267	CASE ( 'left u', 'right u', 'left v', 'right v' )
1268
1269	CALL check(nf90_put_var( ncid, var%varid, array(1,:,:), &
1270	start=start(1:ndim+1), &
1271	count=count(1:ndim) ) )
1272
1273	CASE ( 'north u', 'south u', 'north v', 'south v' )
1274
1275	CALL check(nf90_put_var( ncid, var%varid, array(:,1,:), &
1276	start=start(1:ndim+1), &
1277	count=count(1:ndim) ) )
1278
1279	CASE ( 'top u', 'top v' )
1280
1281	CALL check(nf90_put_var( ncid, var%varid, array(:,:,1), &
1282	start=start(1:ndim+1), &
1283	count=count(1:ndim) ) )
1284
1285	CASE ( 'time series' )
1286
1287	CALL check(nf90_put_var( ncid, var%varid, array(1,1,1), &
1288	start=start(1:ndim+1) ) )
1289
1290	CASE ( 'constant scalar profile', 'geostrophic' )
1291
1292	CALL check(nf90_put_var( ncid, var%varid, array(1,1,:), &
1293	start=start(1:ndim+1), &
1294	count=count(1:ndim) ) )
1295
1296	CASE ( 'internal profile' )
1297
1298	IF ( cfg % debug ) THEN
1299	CALL check(nf90_put_var( ncid, var%varid, array(1,1,:), &
1300	start=start(1:ndim+1), &
1301	count=count(1:ndim) ) )
1302	ENDIF
1303
1304	CASE ( 'large-scale scalar forcing', 'large-scale w forcing' )
1305
1306	message = "Doing nothing in terms of writing large-scale forings."
1307	CALL report('update_output', message)
1308
1309	CASE DEFAULT
1310
1311	message = "Variable kind '" // TRIM(var % kind) // &
1312	"' not recognized."
1313	CALL inifor_abort('update_output', message)
1314
1315	END SELECT
1316
1317	CALL check(nf90_close(ncid))
1318
1319	END SUBROUTINE update_output
1320
1321
1322	!------------------------------------------------------------------------------!
1323	! Description:
1324	! ------------
1325	!> Checks the status of a netCDF API call and aborts if an error occured
1326	!------------------------------------------------------------------------------!
1327	SUBROUTINE check(status)
1328
1329	INTEGER, INTENT(IN) :: status
1330
1331	IF (status /= nf90_noerr) THEN
1332	message = "NetCDF API call failed with error: " // &
1333	TRIM( nf90_strerror(status) )
1334	CALL inifor_abort('io.check', message)
1335	ENDIF
1336
1337	END SUBROUTINE check
1338
1339	END MODULE inifor_io
1340	#endif

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