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source: palm/trunk/SOURCE/ls_forcing_mod.f90 @ 2287

Last change on this file since 2287 was 2271, checked in by sward, 7 years ago
error messages and numbers updated
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File size: 25.0 KB

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1	!> @file ls_forcing_mod.f90
2	!------------------------------------------------------------------------------!
3	! This file is part of PALM.
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 1997-2017 Leibniz Universitaet Hannover
18	!------------------------------------------------------------------------------!
19	!
20	! Current revisions:
21	! ------------------
22	!
23	!
24	! Former revisions:
25	! -----------------
26	! $Id: ls_forcing_mod.f90 2271 2017-06-09 12:34:55Z suehring $
27	! Error messages changed
28	!
29	! 2233 2017-05-30 18:08:54Z suehring
30	!
31	! 2232 2017-05-30 17:47:52Z suehring
32	! Adopt to new topography structure, even though no well-conceived topography
33	! concept concerning nudging and large-scale for exist so far.
34	!
35	! Also adopt to new surface-structure, i.e. fluxes are obtained from data-types
36	!
37	! 2104 2017-01-06 16:01:15Z knoop
38	! Bugfix for approximation related flux input conversion
39	!
40	! 2071 2016-11-17 11:22:14Z maronga
41	! Small bugfix (Resler)
42	!
43	! 2037 2016-10-26 11:15:40Z knoop
44	! Anelastic approximation implemented
45	!
46	! 2000 2016-08-20 18:09:15Z knoop
47	! Forced header and separation lines into 80 columns
48	!
49	! 1850 2016-04-08 13:29:27Z maronga
50	! Module renamed
51	!
52	!
53	! 1682 2015-10-07 23:56:08Z knoop
54	! Code annotations made doxygen readable
55	!
56	! 1602 2015-06-22 07:50:56Z heinze
57	! PA0370 changed to PA0363
58	!
59	! 1382 2014-04-30 12:15:41Z boeske
60	! Renamed variables which store large scale forcing tendencies
61	! pt_lsa -> td_lsa_lpt, pt_subs -> td_sub_lpt,
62	! q_lsa -> td_lsa_q, q_subs -> td_sub_q,
63	! high\|lowpt_lsa -> high\|low_td_lsa_lpt, ...
64	!
65	! 1365 2014-04-22 15:03:56Z boeske
66	! Usage of large scale forcing for pt and q enabled:
67	! Added new subroutine ls_advec for horizontal large scale advection and large
68	! scale subsidence,
69	! error message in init_ls_forcing specified,
70	! variable t renamed nt
71	!
72	! 1353 2014-04-08 15:21:23Z heinze
73	! REAL constants provided with KIND-attribute
74	!
75	! 1320 2014-03-20 08:40:49Z raasch
76	! ONLY-attribute added to USE-statements,
77	! kind-parameters added to all INTEGER and REAL declaration statements,
78	! kinds are defined in new module kinds,
79	! comment fields (!:) to be used for variable explanations added to
80	! all variable declaration statements
81	!
82	! 1318 2014-03-17 13:35:16Z raasch
83	! module interfaces removed
84	!
85	! 1299 2014-03-06 13:15:21Z heinze
86	! Ensure a zero large scale vertical velocity at the surface
87	! Bugfix: typo in case of boundary condition in if-clause
88	!
89	! 1276 2014-01-15 13:40:41Z heinze
90	! Use LSF_DATA also in case of Dirichlet bottom boundary condition for scalars
91	!
92	! 1249 2013-11-06 10:45:47Z heinze
93	! remove call of user module
94	! reformatting
95	!
96	! 1241 2013-10-30 11:36:58Z heinze
97	! Initial revision
98	!
99	! Description:
100	! ------------
101	!> Calculates large scale forcings (geostrophic wind and subsidence velocity) as
102	!> well as surfaces fluxes dependent on time given in an external file (LSF_DATA).
103	!> Code is based in parts on DALES and UCLA-LES.
104	!--------------------------------------------------------------------------------!
105	MODULE ls_forcing_mod
106
107
108	PRIVATE
109	PUBLIC init_ls_forcing, ls_forcing_surf, ls_forcing_vert, ls_advec
110	SAVE
111
112	INTERFACE ls_advec
113	MODULE PROCEDURE ls_advec
114	MODULE PROCEDURE ls_advec_ij
115	END INTERFACE ls_advec
116
117	CONTAINS
118
119	!------------------------------------------------------------------------------!
120	! Description:
121	! ------------
122	!> @todo Missing subroutine description.
123	!------------------------------------------------------------------------------!
124	SUBROUTINE init_ls_forcing
125
126	USE arrays_3d, &
127	ONLY: p_surf, pt_surf, q_surf, qsws_surf, shf_surf, td_lsa_lpt, &
128	td_lsa_q, td_sub_lpt, td_sub_q, time_surf, time_vert, &
129	ug_vert, vg_vert, wsubs_vert, zu
130
131	USE control_parameters, &
132	ONLY: end_time, lsf_surf, lsf_vert, message_string, nlsf
133
134	USE indices, &
135	ONLY: ngp_sums_ls, nzb, nz, nzt
136
137	USE kinds
138
139	USE statistics, &
140	ONLY: sums_ls_l
141
142
143	IMPLICIT NONE
144
145	CHARACTER(100) :: chmess !<
146	CHARACTER(1) :: hash !<
147
148	INTEGER(iwp) :: ierrn !<
149	INTEGER(iwp) :: finput = 90 !<
150	INTEGER(iwp) :: k !<
151	INTEGER(iwp) :: nt !<
152
153	REAL(wp) :: fac !<
154	REAL(wp) :: highheight !<
155	REAL(wp) :: highug_vert !<
156	REAL(wp) :: highvg_vert !<
157	REAL(wp) :: highwsubs_vert !<
158	REAL(wp) :: lowheight !<
159	REAL(wp) :: lowug_vert !<
160	REAL(wp) :: lowvg_vert !<
161	REAL(wp) :: lowwsubs_vert !<
162	REAL(wp) :: high_td_lsa_lpt !<
163	REAL(wp) :: low_td_lsa_lpt !<
164	REAL(wp) :: high_td_lsa_q !<
165	REAL(wp) :: low_td_lsa_q !<
166	REAL(wp) :: high_td_sub_lpt !<
167	REAL(wp) :: low_td_sub_lpt !<
168	REAL(wp) :: high_td_sub_q !<
169	REAL(wp) :: low_td_sub_q !<
170	REAL(wp) :: r_dummy !<
171
172	ALLOCATE( p_surf(0:nlsf), pt_surf(0:nlsf), q_surf(0:nlsf), &
173	qsws_surf(0:nlsf), shf_surf(0:nlsf), &
174	td_lsa_lpt(nzb:nzt+1,0:nlsf), td_lsa_q(nzb:nzt+1,0:nlsf), &
175	td_sub_lpt(nzb:nzt+1,0:nlsf), td_sub_q(nzb:nzt+1,0:nlsf), &
176	time_vert(0:nlsf), time_surf(0:nlsf), &
177	ug_vert(nzb:nzt+1,0:nlsf), vg_vert(nzb:nzt+1,0:nlsf), &
178	wsubs_vert(nzb:nzt+1,0:nlsf) )
179
180	p_surf = 0.0_wp; pt_surf = 0.0_wp; q_surf = 0.0_wp; qsws_surf = 0.0_wp
181	shf_surf = 0.0_wp; time_vert = 0.0_wp; td_lsa_lpt = 0.0_wp
182	td_lsa_q = 0.0_wp; td_sub_lpt = 0.0_wp; td_sub_q = 0.0_wp
183	time_surf = 0.0_wp; ug_vert = 0.0_wp; vg_vert = 0.0_wp
184	wsubs_vert = 0.0_wp
185
186	!
187	!-- Array for storing large scale forcing and nudging tendencies at each
188	!-- timestep for data output
189	ALLOCATE( sums_ls_l(nzb:nzt+1,0:7) )
190	sums_ls_l = 0.0_wp
191
192	ngp_sums_ls = (nz+2)*6
193
194	OPEN ( finput, FILE='LSF_DATA', STATUS='OLD', &
195	FORM='FORMATTED', IOSTAT=ierrn )
196
197	IF ( ierrn /= 0 ) THEN
198	message_string = 'file LSF_DATA does not exist'
199	CALL message( 'ls_forcing', 'PA0368', 1, 2, 0, 6, 0 )
200	ENDIF
201
202	ierrn = 0
203	!
204	!-- First three lines of LSF_DATA contain header
205	READ ( finput, FMT='(a100)', IOSTAT=ierrn ) chmess
206	READ ( finput, FMT='(a100)', IOSTAT=ierrn ) chmess
207	READ ( finput, FMT='(a100)', IOSTAT=ierrn ) chmess
208
209	IF ( ierrn /= 0 ) THEN
210	message_string = 'errors in file LSF_DATA'
211	CALL message( 'ls_forcing', 'PA0369', 1, 2, 0, 6, 0 )
212	ENDIF
213
214	!
215	!-- Surface values are read in
216	nt = 0
217	ierrn = 0
218
219	DO WHILE ( time_surf(nt) < end_time )
220	nt = nt + 1
221	READ ( finput, *, IOSTAT = ierrn ) time_surf(nt), shf_surf(nt), &
222	qsws_surf(nt), pt_surf(nt), &
223	q_surf(nt), p_surf(nt)
224
225	IF ( ierrn < 0 ) THEN
226	WRITE ( message_string, * ) 'No time dependent surface variables ',&
227	'in&LSF_DATA for end of run found'
228
229	CALL message( 'ls_forcing', 'PA0363', 1, 2, 0, 6, 0 )
230	ENDIF
231	ENDDO
232
233	IF ( time_surf(1) > end_time ) THEN
234	WRITE ( message_string, * ) 'Time dependent surface variables in ', &
235	'&LSF_DATA set in after end of ' , &
236	'simulation - lsf_surf is set to FALSE'
237	CALL message( 'ls_forcing', 'PA0371', 0, 0, 0, 6, 0 )
238	lsf_surf = .FALSE.
239	ENDIF
240
241	!
242	!-- Go to the end of the list with surface variables
243	DO WHILE ( ierrn == 0 )
244	READ ( finput, *, IOSTAT = ierrn ) r_dummy
245	ENDDO
246
247	!
248	!-- Profiles of ug, vg and w_subs are read in (large scale forcing)
249
250	nt = 0
251	DO WHILE ( time_vert(nt) < end_time )
252	nt = nt + 1
253	hash = "#"
254	ierrn = 1 ! not zero
255	!
256	!-- Search for the next line consisting of "# time",
257	!-- from there onwards the profiles will be read
258	DO WHILE ( .NOT. ( hash == "#" .AND. ierrn == 0 ) )
259	READ ( finput, *, IOSTAT=ierrn ) hash, time_vert(nt)
260	IF ( ierrn < 0 ) THEN
261	WRITE( message_string, * ) 'No time dependent vertical profiles',&
262	' in&LSF_DATA for end of run found'
263	CALL message( 'ls_forcing', 'PA0372', 1, 2, 0, 6, 0 )
264	ENDIF
265	ENDDO
266
267	IF ( nt == 1 .AND. time_vert(nt) > end_time ) EXIT
268
269	READ ( finput, *, IOSTAT=ierrn ) lowheight, lowug_vert, lowvg_vert, &
270	lowwsubs_vert, low_td_lsa_lpt, &
271	low_td_lsa_q, low_td_sub_lpt, &
272	low_td_sub_q
273	IF ( ierrn /= 0 ) THEN
274	message_string = 'errors in file LSF_DATA'
275	CALL message( 'ls_forcing', 'PA0369', 1, 2, 0, 6, 0 )
276	ENDIF
277
278	READ ( finput, *, IOSTAT=ierrn ) highheight, highug_vert, &
279	highvg_vert, highwsubs_vert, &
280	high_td_lsa_lpt, high_td_lsa_q, &
281	high_td_sub_lpt, high_td_sub_q
282
283	IF ( ierrn /= 0 ) THEN
284	message_string = 'errors in file LSF_DATA'
285	CALL message( 'ls_forcing', 'PA0369', 1, 2, 0, 6, 0 )
286	ENDIF
287
288
289	DO k = nzb, nzt+1
290	IF ( highheight < zu(k) ) THEN
291	lowheight = highheight
292	lowug_vert = highug_vert
293	lowvg_vert = highvg_vert
294	lowwsubs_vert = highwsubs_vert
295	low_td_lsa_lpt = high_td_lsa_lpt
296	low_td_lsa_q = high_td_lsa_q
297	low_td_sub_lpt = high_td_sub_lpt
298	low_td_sub_q = high_td_sub_q
299
300	ierrn = 0
301	READ ( finput, *, IOSTAT=ierrn ) highheight, highug_vert, &
302	highvg_vert, highwsubs_vert, &
303	high_td_lsa_lpt, &
304	high_td_lsa_q, &
305	high_td_sub_lpt, high_td_sub_q
306
307	IF ( ierrn /= 0 ) THEN
308	WRITE( message_string, * ) 'zu(',k,') = ', zu(k), 'm ', &
309	'is higher than the maximum height in LSF_DATA which ',&
310	'is ', lowheight, 'm. Interpolation on PALM ', &
311	'grid is not possible.'
312	CALL message( 'ls_forcing', 'PA0395', 1, 2, 0, 6, 0 )
313	ENDIF
314
315	ENDIF
316
317	!
318	!-- Interpolation of prescribed profiles in space
319	fac = (highheight-zu(k))/(highheight - lowheight)
320
321	ug_vert(k,nt) = fac * lowug_vert &
322	+ ( 1.0_wp - fac ) * highug_vert
323	vg_vert(k,nt) = fac * lowvg_vert &
324	+ ( 1.0_wp - fac ) * highvg_vert
325	wsubs_vert(k,nt) = fac * lowwsubs_vert &
326	+ ( 1.0_wp - fac ) * highwsubs_vert
327
328	td_lsa_lpt(k,nt) = fac * low_td_lsa_lpt &
329	+ ( 1.0_wp - fac ) * high_td_lsa_lpt
330	td_lsa_q(k,nt) = fac * low_td_lsa_q &
331	+ ( 1.0_wp - fac ) * high_td_lsa_q
332	td_sub_lpt(k,nt) = fac * low_td_sub_lpt &
333	+ ( 1.0_wp - fac ) * high_td_sub_lpt
334	td_sub_q(k,nt) = fac * low_td_sub_q &
335	+ ( 1.0_wp - fac ) * high_td_sub_q
336
337	ENDDO
338
339	ENDDO
340
341	!
342	!-- Large scale vertical velocity has to be zero at the surface
343	wsubs_vert(nzb,:) = 0.0_wp
344
345	IF ( time_vert(1) > end_time ) THEN
346	WRITE ( message_string, * ) 'Time dependent large scale profile ', &
347	'forcing from&LSF_DATA sets in after end of ' , &
348	'simulation - lsf_vert is set to FALSE'
349	CALL message( 'ls_forcing', 'PA0373', 0, 0, 0, 6, 0 )
350	lsf_vert = .FALSE.
351	ENDIF
352
353	CLOSE( finput )
354
355
356	END SUBROUTINE init_ls_forcing
357
358
359	!------------------------------------------------------------------------------!
360	! Description:
361	! ------------
362	!> @todo Missing subroutine description.
363	!------------------------------------------------------------------------------!
364	SUBROUTINE ls_forcing_surf ( time )
365
366	USE arrays_3d, &
367	ONLY: p_surf, pt_surf, q_surf, qsws_surf, shf_surf, &
368	heatflux_input_conversion, waterflux_input_conversion, &
369	time_surf, time_vert, ug, ug_vert, vg, vg_vert
370
371	USE control_parameters, &
372	ONLY: bc_q_b, ibc_pt_b, ibc_q_b, pt_surface, q_surface, &
373	surface_pressure
374
375	USE indices, &
376	ONLY: nzb
377
378	USE kinds
379
380	USE surface_mod, &
381	ONLY: surf_def_h, surf_lsm_h, surf_usm_h
382
383	IMPLICIT NONE
384
385	INTEGER(iwp) :: nt !<
386
387	REAL(wp) :: dum_surf_flux !<
388	REAL(wp) :: fac !<
389	REAL(wp), INTENT(in) :: time !<
390
391	!
392	!-- Interpolation in time of LSF_DATA at the surface
393	nt = 1
394	DO WHILE ( time > time_surf(nt) )
395	nt = nt + 1
396	ENDDO
397	IF ( time /= time_surf(nt) ) THEN
398	nt = nt - 1
399	ENDIF
400
401	fac = ( time -time_surf(nt) ) / ( time_surf(nt+1) - time_surf(nt) )
402
403	IF ( ibc_pt_b == 0 ) THEN
404	!
405	!-- In case of Dirichlet boundary condition shf must not
406	!-- be set - it is calculated via MOST in prandtl_fluxes
407	pt_surface = pt_surf(nt) + fac * ( pt_surf(nt+1) - pt_surf(nt) )
408
409	ELSEIF ( ibc_pt_b == 1 ) THEN
410	!
411	!-- In case of Neumann boundary condition pt_surface is needed for
412	!-- calculation of reference density
413	dum_surf_flux = ( shf_surf(nt) + fac * &
414	( shf_surf(nt+1) - shf_surf(nt) ) &
415	) * heatflux_input_conversion(nzb)
416	!
417	!-- Save surface sensible heat flux on default, natural and urban surface
418	!-- type, if required
419	IF ( surf_def_h(0)%ns >= 1 ) surf_def_h(0)%shf(:) = dum_surf_flux
420	IF ( surf_lsm_h%ns >= 1 ) surf_lsm_h%shf(:) = dum_surf_flux
421	IF ( surf_usm_h%ns >= 1 ) surf_usm_h%shf(:) = dum_surf_flux
422
423	pt_surface = pt_surf(nt) + fac * ( pt_surf(nt+1) - pt_surf(nt) )
424
425	ENDIF
426
427	IF ( ibc_q_b == 0 ) THEN
428	!
429	!-- In case of Dirichlet boundary condition qsws must not
430	!-- be set - it is calculated via MOST in prandtl_fluxes
431	q_surface = q_surf(nt) + fac * ( q_surf(nt+1) - q_surf(nt) )
432
433	ELSEIF ( ibc_q_b == 1 ) THEN
434	dum_surf_flux = ( qsws_surf(nt) + fac * &
435	( qsws_surf(nt+1) - qsws_surf(nt) ) &
436	) * waterflux_input_conversion(nzb)
437	!
438	!-- Save surface sensible heat flux on default, natural and urban surface
439	!-- type, if required
440	IF ( surf_def_h(0)%ns >= 1 ) surf_def_h(0)%qsws(:) = dum_surf_flux
441	IF ( surf_lsm_h%ns >= 1 ) surf_lsm_h%qsws(:) = dum_surf_flux
442	IF ( surf_usm_h%ns >= 1 ) surf_usm_h%qsws(:) = dum_surf_flux
443
444	ENDIF
445
446	surface_pressure = p_surf(nt) + fac * ( p_surf(nt+1) - p_surf(nt) )
447
448	END SUBROUTINE ls_forcing_surf
449
450
451	!------------------------------------------------------------------------------!
452	! Description:
453	! ------------
454	!> @todo Missing subroutine description.
455	!------------------------------------------------------------------------------!
456	SUBROUTINE ls_forcing_vert ( time )
457
458	USE arrays_3d, &
459	ONLY: time_vert, ug, ug_vert, vg, vg_vert, w_subs, wsubs_vert
460
461	USE control_parameters, &
462	ONLY: large_scale_subsidence
463
464	USE kinds
465
466	IMPLICIT NONE
467
468	INTEGER(iwp) :: nt !<
469
470	REAL(wp) :: fac !<
471	REAL(wp), INTENT(in) :: time !<
472
473	!
474	!-- Interpolation in time of LSF_DATA for ug, vg and w_subs
475	nt = 1
476	DO WHILE ( time > time_vert(nt) )
477	nt = nt + 1
478	ENDDO
479	IF ( time /= time_vert(nt) ) THEN
480	nt = nt - 1
481	ENDIF
482
483	fac = ( time-time_vert(nt) ) / ( time_vert(nt+1)-time_vert(nt) )
484
485	ug = ug_vert(:,nt) + fac * ( ug_vert(:,nt+1) - ug_vert(:,nt) )
486	vg = vg_vert(:,nt) + fac * ( vg_vert(:,nt+1) - vg_vert(:,nt) )
487
488	IF ( large_scale_subsidence ) THEN
489	w_subs = wsubs_vert(:,nt) &
490	+ fac * ( wsubs_vert(:,nt+1) - wsubs_vert(:,nt) )
491	ENDIF
492
493	END SUBROUTINE ls_forcing_vert
494
495
496	!------------------------------------------------------------------------------!
497	! Description:
498	! ------------
499	!> Call for all grid points
500	!------------------------------------------------------------------------------!
501	SUBROUTINE ls_advec ( time, prog_var )
502
503	USE arrays_3d, &
504	ONLY: td_lsa_lpt, td_lsa_q, td_sub_lpt, td_sub_q, tend, time_vert
505
506	USE control_parameters, &
507	ONLY: large_scale_subsidence, use_subsidence_tendencies
508
509	USE indices
510
511	USE kinds
512
513	IMPLICIT NONE
514
515	CHARACTER (LEN=*) :: prog_var !<
516
517	REAL(wp), INTENT(in) :: time !<
518	REAL(wp) :: fac !<
519
520	INTEGER(iwp) :: i !<
521	INTEGER(iwp) :: j !<
522	INTEGER(iwp) :: k !<
523	INTEGER(iwp) :: nt !<
524
525	!
526	!-- Interpolation in time of LSF_DATA
527	nt = 1
528	DO WHILE ( time > time_vert(nt) )
529	nt = nt + 1
530	ENDDO
531	IF ( time /= time_vert(nt) ) THEN
532	nt = nt - 1
533	ENDIF
534
535	fac = ( time-time_vert(nt) ) / ( time_vert(nt+1)-time_vert(nt) )
536
537	!
538	!-- Add horizontal large scale advection tendencies of pt and q
539	SELECT CASE ( prog_var )
540
541	CASE ( 'pt' )
542
543	DO i = nxl, nxr
544	DO j = nys, nyn
545	DO k = nzb+1, nzt
546	tend(k,j,i) = tend(k,j,i) + td_lsa_lpt(k,nt) + fac * &
547	( td_lsa_lpt(k,nt+1) - td_lsa_lpt(k,nt) ) *&
548	MERGE( 1.0_wp, 0.0_wp, &
549	BTEST( wall_flags_0(k,j,i), 0 ) )
550	ENDDO
551	ENDDO
552	ENDDO
553
554	CASE ( 'q' )
555
556	DO i = nxl, nxr
557	DO j = nys, nyn
558	DO k = nzb+1, nzt
559	tend(k,j,i) = tend(k,j,i) + td_lsa_q(k,nt) + fac * &
560	( td_lsa_q(k,nt+1) - td_lsa_q(k,nt) ) * &
561	MERGE( 1.0_wp, 0.0_wp, &
562	BTEST( wall_flags_0(k,j,i), 0 ) )
563	ENDDO
564	ENDDO
565	ENDDO
566
567	END SELECT
568
569	!
570	!-- Subsidence of pt and q with prescribed subsidence tendencies
571	IF ( large_scale_subsidence .AND. use_subsidence_tendencies ) THEN
572
573	SELECT CASE ( prog_var )
574
575	CASE ( 'pt' )
576
577	DO i = nxl, nxr
578	DO j = nys, nyn
579	DO k = nzb+1, nzt
580	tend(k,j,i) = tend(k,j,i) + td_sub_lpt(k,nt) + fac * &
581	( td_sub_lpt(k,nt+1) - td_sub_lpt(k,nt) )*&
582	MERGE( 1.0_wp, 0.0_wp, &
583	BTEST( wall_flags_0(k,j,i), 0 ) )
584	ENDDO
585	ENDDO
586	ENDDO
587
588	CASE ( 'q' )
589
590	DO i = nxl, nxr
591	DO j = nys, nyn
592	DO k = nzb+1, nzt
593	tend(k,j,i) = tend(k,j,i) + td_sub_q(k,nt) + fac * &
594	( td_sub_q(k,nt+1) - td_sub_q(k,nt) ) * &
595	MERGE( 1.0_wp, 0.0_wp, &
596	BTEST( wall_flags_0(k,j,i), 0 ) )
597	ENDDO
598	ENDDO
599	ENDDO
600
601	END SELECT
602
603	ENDIF
604
605	END SUBROUTINE ls_advec
606
607
608	!------------------------------------------------------------------------------!
609	! Description:
610	! ------------
611	!> Call for grid point i,j
612	!------------------------------------------------------------------------------!
613	SUBROUTINE ls_advec_ij ( i, j, time, prog_var )
614
615	USE arrays_3d, &
616	ONLY: td_lsa_lpt, td_lsa_q, td_sub_lpt, td_sub_q, tend, time_vert
617
618	USE control_parameters, &
619	ONLY: large_scale_subsidence, use_subsidence_tendencies
620
621	USE indices
622
623	USE kinds
624
625	IMPLICIT NONE
626
627	CHARACTER (LEN=*) :: prog_var !<
628
629	REAL(wp), INTENT(in) :: time !<
630	REAL(wp) :: fac !<
631
632	INTEGER(iwp) :: i !<
633	INTEGER(iwp) :: j !<
634	INTEGER(iwp) :: k !<
635	INTEGER(iwp) :: nt !<
636
637	!
638	!-- Interpolation in time of LSF_DATA
639	nt = 1
640	DO WHILE ( time > time_vert(nt) )
641	nt = nt + 1
642	ENDDO
643	IF ( time /= time_vert(nt) ) THEN
644	nt = nt - 1
645	ENDIF
646
647	fac = ( time-time_vert(nt) ) / ( time_vert(nt+1)-time_vert(nt) )
648
649	!
650	!-- Add horizontal large scale advection tendencies of pt and q
651	SELECT CASE ( prog_var )
652
653	CASE ( 'pt' )
654
655	DO k = nzb+1, nzt
656	tend(k,j,i) = tend(k,j,i) + td_lsa_lpt(k,nt) &
657	+ fac * ( td_lsa_lpt(k,nt+1) - td_lsa_lpt(k,nt) )*&
658	MERGE( 1.0_wp, 0.0_wp, &
659	BTEST( wall_flags_0(k,j,i), 0 ) )
660	ENDDO
661
662	CASE ( 'q' )
663
664	DO k = nzb+1, nzt
665	tend(k,j,i) = tend(k,j,i) + td_lsa_q(k,nt) &
666	+ fac * ( td_lsa_q(k,nt+1) - td_lsa_q(k,nt) ) * &
667	MERGE( 1.0_wp, 0.0_wp, &
668	BTEST( wall_flags_0(k,j,i), 0 ) )
669	ENDDO
670
671	END SELECT
672
673	!
674	!-- Subsidence of pt and q with prescribed profiles
675	IF ( large_scale_subsidence .AND. use_subsidence_tendencies ) THEN
676
677	SELECT CASE ( prog_var )
678
679	CASE ( 'pt' )
680
681	DO k = nzb+1, nzt
682	tend(k,j,i) = tend(k,j,i) + td_sub_lpt(k,nt) + fac * &
683	( td_sub_lpt(k,nt+1) - td_sub_lpt(k,nt) ) * &
684	MERGE( 1.0_wp, 0.0_wp, &
685	BTEST( wall_flags_0(k,j,i), 0 ) )
686	ENDDO
687
688	CASE ( 'q' )
689
690	DO k = nzb+1, nzt
691	tend(k,j,i) = tend(k,j,i) + td_sub_q(k,nt) + fac * &
692	( td_sub_q(k,nt+1) - td_sub_q(k,nt) ) * &
693	MERGE( 1.0_wp, 0.0_wp, &
694	BTEST( wall_flags_0(k,j,i), 0 ) )
695	ENDDO
696
697	END SELECT
698
699	ENDIF
700
701	END SUBROUTINE ls_advec_ij
702
703
704	END MODULE ls_forcing_mod

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