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source: palm/trunk/SOURCE/prognostic_equations.f90 @ 3930

Last change on this file since 3930 was 3929, checked in by banzhafs, 6 years ago
Correct/complete module_interface introduction for chemistry model and bug fix in chem_depo subroutine
Property svn:keywords set to `Id`
File size: 69.3 KB

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1	!> @file prognostic_equations.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 1997-2019 Leibniz Universitaet Hannover
18	!------------------------------------------------------------------------------!
19	!
20	! Current revisions:
21	! ------------------
22	!
23	!
24	! Former revisions:
25	! -----------------
26	! $Id: prognostic_equations.f90 3929 2019-04-24 12:52:08Z forkel $
27	! Correct/complete module_interface introduction for chemistry model
28	!
29	! 3899 2019-04-16 14:05:27Z monakurppa
30	! Corrections in the OpenMP version of salsa
31	!
32	! 3887 2019 -04-12 08:47:41Z schwenkel
33	! Implicit Bugfix for chemistry model, loop for non_transport_physics over
34	! ghost points is avoided. Instead introducing module_interface_exchange_horiz.
35	!
36	! 3885 2019-04-11 11:29:34Z kanani
37	! Changes related to global restructuring of location messages and introduction
38	! of additional debug messages
39	!
40	! 3881 2019-04-10 09:31:22Z suehring
41	! Bugfix in OpenMP directive
42	!
43	! 3880 2019-04-08 21:43:02Z knoop
44	! Moved wtm_tendencies to module_interface_actions
45	!
46	! 3874 2019-04-08 16:53:48Z knoop
47	! Added non_transport_physics module interfaces and moved bcm code into it
48	!
49	! 3872 2019-04-08 15:03:06Z knoop
50	! Moving prognostic equations of bcm into bulk_cloud_model_mod
51	!
52	! 3864 2019-04-05 09:01:56Z monakurppa
53	! Modifications made for salsa:
54	! - salsa_prognostic_equations moved to salsa_mod (and the call to
55	! module_interface_mod)
56	! - Renamed nbins --> nbins_aerosol, ncc_tot --> ncomponents_mass and
57	! ngast --> ngases_salsa and loop indices b, c and sg to ib, ic and ig
58	!
59	! 3840 2019-03-29 10:35:52Z knoop
60	! added USE chem_gasphase_mod for nspec, nspec and spc_names
61	!
62	! 3820 2019-03-27 11:53:41Z forkel
63	! renamed do_depo to deposition_dry (ecc)
64	!
65	! 3797 2019-03-15 11:15:38Z forkel
66	! Call chem_integegrate in OpenMP loop (ketelsen)
67	!
68	!
69	! 3771 2019-02-28 12:19:33Z raasch
70	! preprocessor directivs fro rrtmg added
71	!
72	! 3761 2019-02-25 15:31:42Z raasch
73	! unused variable removed
74	!
75	! 3719 2019-02-06 13:10:18Z kanani
76	! Cleaned up chemistry cpu measurements
77	!
78	! 3684 2019-01-20 20:20:58Z knoop
79	! OpenACC port for SPEC
80	!
81	! 3589 2018-11-30 15:09:51Z suehring
82	! Move the control parameter "salsa" from salsa_mod to control_parameters
83	! (M. Kurppa)
84	!
85	! 3582 2018-11-29 19:16:36Z suehring
86	! Implementation of a new aerosol module salsa.
87	! Remove cpu-logs from i,j loop in cache version.
88	!
89	! 3458 2018-10-30 14:51:23Z kanani
90	! remove duplicate USE chem_modules
91	! from chemistry branch r3443, banzhafs, basit:
92	! chem_depo call introduced
93	! code added for decycling chemistry
94	!
95	! 3386 2018-10-19 16:28:22Z gronemeier
96	! Renamed tcm_prognostic to tcm_prognostic_equations
97	!
98	! 3355 2018-10-16 14:03:34Z knoop
99	! (from branch resler)
100	! Fix for chemistry call
101	!
102	! 3302 2018-10-03 02:39:40Z raasch
103	! Stokes drift + wave breaking term added
104	!
105	! 3298 2018-10-02 12:21:11Z kanani
106	! Code added for decycling chemistry (basit)
107	!
108	! 3294 2018-10-01 02:37:10Z raasch
109	! changes concerning modularization of ocean option
110	!
111	! 3274 2018-09-24 15:42:55Z knoop
112	! Modularization of all bulk cloud physics code components
113	!
114	! 3241 2018-09-12 15:02:00Z raasch
115	! omp_get_thread_num now declared in omp directive
116	!
117	! 3183 2018-07-27 14:25:55Z suehring
118	! Remove unused variables from USE statements
119	!
120	! 3182 2018-07-27 13:36:03Z suehring
121	! Revise recent bugfix for nesting
122	!
123	! 3021 2018-05-16 08:14:20Z maronga
124	! Bugfix in IF clause for nesting
125	!
126	! 3014 2018-05-09 08:42:38Z maronga
127	! Fixed a bug in the IF condition to call pcm_tendency in case of
128	! potential temperature
129	!
130	! 2815 2018-02-19 11:29:57Z kanani
131	! Rename chem_tendency to chem_prognostic_equations,
132	! implement vector version for air chemistry
133	!
134	! 2766 2018-01-22 17:17:47Z kanani
135	! Removed preprocessor directive __chem
136	!
137	! 2746 2018-01-15 12:06:04Z suehring
138	! Move flag plant canopy to modules
139	!
140	! 2719 2018-01-02 09:02:06Z maronga
141	! Bugfix for last change.
142	!
143	! 2718 2018-01-02 08:49:38Z maronga
144	! Corrected "Former revisions" section
145	!
146	! 2696 2017-12-14 17:12:51Z kanani
147	! - Change in file header (GPL part)
148	! - Moved TKE equation to tcm_prognostic (TG)
149	! - Added switch for chemical reactions (RF, FK)
150	! - Implementation of chemistry module (RF, BK, FK)
151	!
152	! 2563 2017-10-19 15:36:10Z Giersch
153	! Variable wind_turbine moved to module control_parameters
154	!
155	! 2320 2017-07-21 12:47:43Z suehring
156	! Modularize large-scale forcing and nudging
157	!
158	! 2292 2017-06-20 09:51:42Z schwenkel
159	! Implementation of new microphysic scheme: cloud_scheme = 'morrison'
160	! includes two more prognostic equations for cloud drop concentration (nc)
161	! and cloud water content (qc).
162	!
163	! 2261 2017-06-08 14:25:57Z raasch
164	! bugfix for r2232: openmp directives removed
165	!
166	! 2233 2017-05-30 18:08:54Z suehring
167	!
168	! 2232 2017-05-30 17:47:52Z suehring
169	! Adjutst to new surface-type structure. Remove call for usm_wall_heat_flux,
170	! which is realized directly in diffusion_s now.
171	!
172	! 2192 2017-03-22 04:14:10Z raasch
173	! Bugfix for misplaced and missing openMP directives from r2155
174	!
175	! 2155 2017-02-21 09:57:40Z hoffmann
176	! Bugfix in the calculation of microphysical quantities on ghost points.
177	!
178	! 2118 2017-01-17 16:38:49Z raasch
179	! OpenACC version of subroutine removed
180	!
181	! 2031 2016-10-21 15:11:58Z knoop
182	! renamed variable rho to rho_ocean
183	!
184	! 2011 2016-09-19 17:29:57Z kanani
185	! Flag urban_surface is now defined in module control_parameters.
186	!
187	! 2007 2016-08-24 15:47:17Z kanani
188	! Added pt tendency calculation based on energy balance at urban surfaces
189	! (new urban surface model)
190	!
191	! 2000 2016-08-20 18:09:15Z knoop
192	! Forced header and separation lines into 80 columns
193	!
194	! 1976 2016-07-27 13:28:04Z maronga
195	! Simplied calls to radiation model
196	!
197	! 1960 2016-07-12 16:34:24Z suehring
198	! Separate humidity and passive scalar
199	!
200	! 1914 2016-05-26 14:44:07Z witha
201	! Added calls for wind turbine model
202	!
203	! 1873 2016-04-18 14:50:06Z maronga
204	! Module renamed (removed _mod)
205	!
206	! 1850 2016-04-08 13:29:27Z maronga
207	! Module renamed
208	!
209	! 1826 2016-04-07 12:01:39Z maronga
210	! Renamed canopy model calls.
211	!
212	! 1822 2016-04-07 07:49:42Z hoffmann
213	! Kessler microphysics scheme moved to microphysics.
214	!
215	! 1757 2016-02-22 15:49:32Z maronga
216	!
217	! 1691 2015-10-26 16:17:44Z maronga
218	! Added optional model spin-up without radiation / land surface model calls.
219	! Formatting corrections.
220	!
221	! 1682 2015-10-07 23:56:08Z knoop
222	! Code annotations made doxygen readable
223	!
224	! 1585 2015-04-30 07:05:52Z maronga
225	! Added call for temperature tendency calculation due to radiative flux divergence
226	!
227	! 1517 2015-01-07 19:12:25Z hoffmann
228	! advec_s_bc_mod addded, since advec_s_bc is now a module
229	!
230	! 1484 2014-10-21 10:53:05Z kanani
231	! Changes due to new module structure of the plant canopy model:
232	! parameters cthf and plant_canopy moved to module plant_canopy_model_mod.
233	! Removed double-listing of use_upstream_for_tke in ONLY-list of module
234	! control_parameters
235	!
236	! 1409 2014-05-23 12:11:32Z suehring
237	! Bugfix: i_omp_start changed for advec_u_ws at left inflow and outflow boundary.
238	! This ensures that left-hand side fluxes are also calculated for nxl in that
239	! case, even though the solution at nxl is overwritten in boundary_conds()
240	!
241	! 1398 2014-05-07 11:15:00Z heinze
242	! Rayleigh-damping for horizontal velocity components changed: instead of damping
243	! against ug and vg, damping against u_init and v_init is used to allow for a
244	! homogenized treatment in case of nudging
245	!
246	! 1380 2014-04-28 12:40:45Z heinze
247	! Change order of calls for scalar prognostic quantities:
248	! ls_advec -> nudging -> subsidence since initial profiles
249	!
250	! 1374 2014-04-25 12:55:07Z raasch
251	! missing variables added to ONLY lists
252	!
253	! 1365 2014-04-22 15:03:56Z boeske
254	! Calls of ls_advec for large scale advection added,
255	! subroutine subsidence is only called if use_subsidence_tendencies = .F.,
256	! new argument ls_index added to the calls of subsidence
257	! +ls_index
258	!
259	! 1361 2014-04-16 15:17:48Z hoffmann
260	! Two-moment microphysics moved to the start of prognostic equations. This makes
261	! the 3d arrays for tend_q, tend_qr, tend_pt and tend_pt redundant.
262	! Additionally, it is allowed to call the microphysics just once during the time
263	! step (not at each sub-time step).
264	!
265	! Two-moment cloud physics added for vector and accelerator optimization.
266	!
267	! 1353 2014-04-08 15:21:23Z heinze
268	! REAL constants provided with KIND-attribute
269	!
270	! 1337 2014-03-25 15:11:48Z heinze
271	! Bugfix: REAL constants provided with KIND-attribute
272	!
273	! 1332 2014-03-25 11:59:43Z suehring
274	! Bugfix: call advec_ws or advec_pw for TKE only if NOT use_upstream_for_tke
275	!
276	! 1330 2014-03-24 17:29:32Z suehring
277	! In case of SGS-particle velocity advection of TKE is also allowed with
278	! dissipative 5th-order scheme.
279	!
280	! 1320 2014-03-20 08:40:49Z raasch
281	! ONLY-attribute added to USE-statements,
282	! kind-parameters added to all INTEGER and REAL declaration statements,
283	! kinds are defined in new module kinds,
284	! old module precision_kind is removed,
285	! revision history before 2012 removed,
286	! comment fields (!:) to be used for variable explanations added to
287	! all variable declaration statements
288	!
289	! 1318 2014-03-17 13:35:16Z raasch
290	! module interfaces removed
291	!
292	! 1257 2013-11-08 15:18:40Z raasch
293	! openacc loop vector clauses removed, independent clauses added
294	!
295	! 1246 2013-11-01 08:59:45Z heinze
296	! enable nudging also for accelerator version
297	!
298	! 1241 2013-10-30 11:36:58Z heinze
299	! usage of nudging enabled (so far not implemented for accelerator version)
300	!
301	! 1179 2013-06-14 05:57:58Z raasch
302	! two arguments removed from routine buoyancy, ref_state updated on device
303	!
304	! 1128 2013-04-12 06:19:32Z raasch
305	! those parts requiring global communication moved to time_integration,
306	! loop index bounds in accelerator version replaced by i_left, i_right, j_south,
307	! j_north
308	!
309	! 1115 2013-03-26 18:16:16Z hoffmann
310	! optimized cloud physics: calculation of microphysical tendencies transfered
311	! to microphysics.f90; qr and nr are only calculated if precipitation is required
312	!
313	! 1111 2013-03-08 23:54:10Z raasch
314	! update directives for prognostic quantities removed
315	!
316	! 1106 2013-03-04 05:31:38Z raasch
317	! small changes in code formatting
318	!
319	! 1092 2013-02-02 11:24:22Z raasch
320	! unused variables removed
321	!
322	! 1053 2012-11-13 17:11:03Z hoffmann
323	! implementation of two new prognostic equations for rain drop concentration (nr)
324	! and rain water content (qr)
325	!
326	! currently, only available for cache loop optimization
327	!
328	! 1036 2012-10-22 13:43:42Z raasch
329	! code put under GPL (PALM 3.9)
330	!
331	! 1019 2012-09-28 06:46:45Z raasch
332	! non-optimized version of prognostic_equations removed
333	!
334	! 1015 2012-09-27 09:23:24Z raasch
335	! new branch prognostic_equations_acc
336	! OpenACC statements added + code changes required for GPU optimization
337	!
338	! 1001 2012-09-13 14:08:46Z raasch
339	! all actions concerning leapfrog- and upstream-spline-scheme removed
340	!
341	! 978 2012-08-09 08:28:32Z fricke
342	! km_damp_x and km_damp_y removed in calls of diffusion_u and diffusion_v
343	! add ptdf_x, ptdf_y for damping the potential temperature at the inflow
344	! boundary in case of non-cyclic lateral boundaries
345	! Bugfix: first thread index changes for WS-scheme at the inflow
346	!
347	! 940 2012-07-09 14:31:00Z raasch
348	! temperature equation can be switched off
349	!
350	! Revision 1.1 2000/04/13 14:56:27 schroeter
351	! Initial revision
352	!
353	!
354	! Description:
355	! ------------
356	!> Solving the prognostic equations.
357	!------------------------------------------------------------------------------!
358	MODULE prognostic_equations_mod
359
360	USE advec_s_bc_mod, &
361	ONLY: advec_s_bc
362
363	USE advec_s_pw_mod, &
364	ONLY: advec_s_pw
365
366	USE advec_s_up_mod, &
367	ONLY: advec_s_up
368
369	USE advec_u_pw_mod, &
370	ONLY: advec_u_pw
371
372	USE advec_u_up_mod, &
373	ONLY: advec_u_up
374
375	USE advec_v_pw_mod, &
376	ONLY: advec_v_pw
377
378	USE advec_v_up_mod, &
379	ONLY: advec_v_up
380
381	USE advec_w_pw_mod, &
382	ONLY: advec_w_pw
383
384	USE advec_w_up_mod, &
385	ONLY: advec_w_up
386
387	USE advec_ws, &
388	ONLY: advec_s_ws, advec_u_ws, advec_v_ws, advec_w_ws
389
390	USE arrays_3d, &
391	ONLY: diss_l_e, diss_l_pt, diss_l_q, &
392	diss_l_s, diss_l_sa, diss_s_e, &
393	diss_s_pt, diss_s_q, diss_s_s, diss_s_sa, &
394	e, e_p, flux_s_e, flux_s_pt, flux_s_q, &
395	flux_s_s, flux_s_sa, flux_l_e, &
396	flux_l_pt, flux_l_q, flux_l_s, &
397	flux_l_sa, pt, ptdf_x, ptdf_y, pt_init, &
398	pt_p, prho, q, q_init, q_p, rdf, rdf_sc, &
399	ref_state, rho_ocean, s, s_init, s_p, tend, te_m, &
400	tpt_m, tq_m, ts_m, tu_m, tv_m, tw_m, u, &
401	ug, u_init, u_p, v, vg, vpt, v_init, v_p, w, w_p
402
403	USE buoyancy_mod, &
404	ONLY: buoyancy
405
406	USE control_parameters, &
407	ONLY: constant_diffusion, &
408	debug_output, debug_string, &
409	dp_external, dp_level_ind_b, dp_smooth_factor, dpdxy, dt_3d, &
410	humidity, intermediate_timestep_count, &
411	intermediate_timestep_count_max, large_scale_forcing, &
412	large_scale_subsidence, neutral, nudging, &
413	ocean_mode, passive_scalar, plant_canopy, pt_reference, &
414	scalar_advec, scalar_advec, simulated_time, sloping_surface, &
415	timestep_scheme, tsc, use_subsidence_tendencies, &
416	use_upstream_for_tke, wind_turbine, ws_scheme_mom, &
417	ws_scheme_sca, urban_surface, land_surface, &
418	time_since_reference_point, salsa
419
420	USE coriolis_mod, &
421	ONLY: coriolis
422
423	USE cpulog, &
424	ONLY: cpu_log, log_point, log_point_s
425
426	USE diffusion_s_mod, &
427	ONLY: diffusion_s
428
429	USE diffusion_u_mod, &
430	ONLY: diffusion_u
431
432	USE diffusion_v_mod, &
433	ONLY: diffusion_v
434
435	USE diffusion_w_mod, &
436	ONLY: diffusion_w
437
438	USE indices, &
439	ONLY: nbgp, nxl, nxlg, nxlu, nxr, nxrg, nyn, nyng, nys, nysg, nysv, &
440	nzb, nzt, wall_flags_0
441
442	USE kinds
443
444	USE lsf_nudging_mod, &
445	ONLY: ls_advec, nudge
446
447	USE module_interface, &
448	ONLY: module_interface_actions, &
449	module_interface_non_transport_physics, &
450	module_interface_exchange_horiz, &
451	module_interface_prognostic_equations
452
453	USE ocean_mod, &
454	ONLY: stokes_drift_terms, stokes_force, &
455	wave_breaking, wave_breaking_term
456
457	USE plant_canopy_model_mod, &
458	ONLY: cthf, pcm_tendency
459
460	#if defined( __rrtmg )
461	USE radiation_model_mod, &
462	ONLY: radiation, radiation_tendency, &
463	skip_time_do_radiation
464	#endif
465
466	USE salsa_mod, &
467	ONLY: aerosol_mass, aerosol_number, dt_salsa, last_salsa_time, &
468	nbins_aerosol, ncomponents_mass, ngases_salsa, &
469	salsa_boundary_conds, salsa_diagnostics, salsa_driver, &
470	salsa_gas, salsa_gases_from_chem, skip_time_do_salsa
471
472	USE statistics, &
473	ONLY: hom
474
475	USE subsidence_mod, &
476	ONLY: subsidence
477
478	USE surface_mod, &
479	ONLY : surf_def_h, surf_def_v, surf_lsm_h, surf_lsm_v, surf_usm_h, &
480	surf_usm_v
481
482	USE turbulence_closure_mod, &
483	ONLY: tcm_prognostic_equations
484
485	IMPLICIT NONE
486
487	PRIVATE
488	PUBLIC prognostic_equations_cache, prognostic_equations_vector
489
490	INTERFACE prognostic_equations_cache
491	MODULE PROCEDURE prognostic_equations_cache
492	END INTERFACE prognostic_equations_cache
493
494	INTERFACE prognostic_equations_vector
495	MODULE PROCEDURE prognostic_equations_vector
496	END INTERFACE prognostic_equations_vector
497
498
499	CONTAINS
500
501
502	!------------------------------------------------------------------------------!
503	! Description:
504	! ------------
505	!> Version with one optimized loop over all equations. It is only allowed to
506	!> be called for the Wicker and Skamarock or Piascek-Williams advection scheme.
507	!>
508	!> Here the calls of most subroutines are embedded in two DO loops over i and j,
509	!> so communication between CPUs is not allowed (does not make sense) within
510	!> these loops.
511	!>
512	!> (Optimized to avoid cache missings, i.e. for Power4/5-architectures.)
513	!------------------------------------------------------------------------------!
514
515	SUBROUTINE prognostic_equations_cache
516
517
518	INTEGER(iwp) :: i !<
519	INTEGER(iwp) :: i_omp_start !<
520	INTEGER(iwp) :: ib !< index for aerosol size bins (salsa)
521	INTEGER(iwp) :: ic !< index for chemical compounds (salsa)
522	INTEGER(iwp) :: icc !< additional index for chemical compounds (salsa)
523	INTEGER(iwp) :: ig !< index for gaseous compounds (salsa)
524	INTEGER(iwp) :: j !<
525	INTEGER(iwp) :: k !<
526	!$ INTEGER(iwp) :: omp_get_thread_num !<
527	INTEGER(iwp) :: tn = 0 !<
528
529	LOGICAL :: loop_start !<
530
531
532
533	IF ( debug_output ) THEN
534	WRITE( debug_string, * ) 'prognostic_equations_cache'
535	CALL debug_message( debug_string, 'start' )
536	ENDIF
537	!
538	!-- Time measurement can only be performed for the whole set of equations
539	CALL cpu_log( log_point(32), 'all progn.equations', 'start' )
540
541	!$OMP PARALLEL PRIVATE (i,j)
542	!$OMP DO
543	DO i = nxl, nxr
544	DO j = nys, nyn
545	!
546	!-- Calculate non transport physics for all other modules
547	CALL module_interface_non_transport_physics( i, j )
548	ENDDO
549	ENDDO
550	!
551	!-- Module Inferface for exchange horiz after non_transport_physics but before
552	!-- advection. Therefore, non_transport_physics must not run for ghost points.
553	CALL module_interface_exchange_horiz()
554	!$OMP END PARALLEL
555
556	!
557	!-- Run SALSA and aerosol dynamic processes. SALSA is run with a longer time
558	!-- step. The exchange of ghost points is required after this update of the
559	!-- concentrations of aerosol number and mass
560	IF ( salsa ) THEN
561
562	IF ( time_since_reference_point >= skip_time_do_salsa ) THEN
563	IF ( ( time_since_reference_point - last_salsa_time ) >= dt_salsa ) &
564	THEN
565	CALL cpu_log( log_point_s(90), 'salsa processes ', 'start' )
566	!$OMP PARALLEL PRIVATE (i,j)
567	!
568	!-- Call salsa processes
569	!$OMP DO
570	DO i = nxl, nxr
571	DO j = nys, nyn
572	CALL salsa_diagnostics( i, j )
573	CALL salsa_driver( i, j, 3 )
574	CALL salsa_diagnostics( i, j )
575	ENDDO
576	ENDDO
577	!$OMP END PARALLEL
578
579	CALL cpu_log( log_point_s(90), 'salsa processes ', 'stop' )
580
581	CALL cpu_log( log_point_s(91), 'salsa exch-horiz ', 'start' )
582	!
583	!-- Exchange ghost points and decycle if needed.
584	DO ib = 1, nbins_aerosol
585	CALL exchange_horiz( aerosol_number(ib)%conc, nbgp )
586	CALL salsa_boundary_conds( aerosol_number(ib)%conc, &
587	aerosol_number(ib)%init )
588	DO ic = 1, ncomponents_mass
589	icc = ( ic - 1 ) * nbins_aerosol + ib
590	CALL exchange_horiz( aerosol_mass(icc)%conc, nbgp )
591	CALL salsa_boundary_conds( aerosol_mass(icc)%conc, &
592	aerosol_mass(icc)%init )
593	ENDDO
594	ENDDO
595
596	IF ( .NOT. salsa_gases_from_chem ) THEN
597	DO ig = 1, ngases_salsa
598	CALL exchange_horiz( salsa_gas(ig)%conc, nbgp )
599	CALL salsa_boundary_conds( salsa_gas(ig)%conc, &
600	salsa_gas(ig)%init )
601	ENDDO
602	ENDIF
603	CALL cpu_log( log_point_s(91), 'salsa exch-horiz ', 'stop' )
604	last_salsa_time = time_since_reference_point
605
606	ENDIF
607
608	ENDIF
609
610	ENDIF
611
612	!
613	!-- Loop over all prognostic equations
614	!$OMP PARALLEL PRIVATE (i,i_omp_start,j,k,loop_start,tn)
615
616	!$ tn = omp_get_thread_num()
617	loop_start = .TRUE.
618
619	!$OMP DO
620	DO i = nxl, nxr
621
622	!
623	!-- Store the first loop index. It differs for each thread and is required
624	!-- later in advec_ws
625	IF ( loop_start ) THEN
626	loop_start = .FALSE.
627	i_omp_start = i
628	ENDIF
629
630	DO j = nys, nyn
631	!
632	!-- Tendency terms for u-velocity component. Please note, in case of
633	!-- non-cyclic boundary conditions the grid point i=0 is excluded from
634	!-- the prognostic equations for the u-component.
635	IF ( i >= nxlu ) THEN
636
637	tend(:,j,i) = 0.0_wp
638	IF ( timestep_scheme(1:5) == 'runge' ) THEN
639	IF ( ws_scheme_mom ) THEN
640	CALL advec_u_ws( i, j, i_omp_start, tn )
641	ELSE
642	CALL advec_u_pw( i, j )
643	ENDIF
644	ELSE
645	CALL advec_u_up( i, j )
646	ENDIF
647	CALL diffusion_u( i, j )
648	CALL coriolis( i, j, 1 )
649	IF ( sloping_surface .AND. .NOT. neutral ) THEN
650	CALL buoyancy( i, j, pt, 1 )
651	ENDIF
652
653	!
654	!-- Drag by plant canopy
655	IF ( plant_canopy ) CALL pcm_tendency( i, j, 1 )
656
657	!
658	!-- External pressure gradient
659	IF ( dp_external ) THEN
660	DO k = dp_level_ind_b+1, nzt
661	tend(k,j,i) = tend(k,j,i) - dpdxy(1) * dp_smooth_factor(k)
662	ENDDO
663	ENDIF
664
665	!
666	!-- Nudging
667	IF ( nudging ) CALL nudge( i, j, simulated_time, 'u' )
668
669	!
670	!-- Effect of Stokes drift (in ocean mode only)
671	IF ( stokes_force ) CALL stokes_drift_terms( i, j, 1 )
672
673	CALL module_interface_actions( i, j, 'u-tendency' )
674	!
675	!-- Prognostic equation for u-velocity component
676	DO k = nzb+1, nzt
677
678	u_p(k,j,i) = u(k,j,i) + ( dt_3d * &
679	( tsc(2) * tend(k,j,i) + &
680	tsc(3) * tu_m(k,j,i) ) &
681	- tsc(5) * rdf(k) &
682	* ( u(k,j,i) - u_init(k) ) &
683	) * MERGE( 1.0_wp, 0.0_wp, &
684	BTEST( wall_flags_0(k,j,i), 1 )&
685	)
686	ENDDO
687
688	!
689	!-- Add turbulence generated by wave breaking (in ocean mode only)
690	IF ( wave_breaking .AND. &
691	intermediate_timestep_count == intermediate_timestep_count_max )&
692	THEN
693	CALL wave_breaking_term( i, j, 1 )
694	ENDIF
695
696	!
697	!-- Calculate tendencies for the next Runge-Kutta step
698	IF ( timestep_scheme(1:5) == 'runge' ) THEN
699	IF ( intermediate_timestep_count == 1 ) THEN
700	DO k = nzb+1, nzt
701	tu_m(k,j,i) = tend(k,j,i)
702	ENDDO
703	ELSEIF ( intermediate_timestep_count < &
704	intermediate_timestep_count_max ) THEN
705	DO k = nzb+1, nzt
706	tu_m(k,j,i) = -9.5625_wp * tend(k,j,i) &
707	+ 5.3125_wp * tu_m(k,j,i)
708	ENDDO
709	ENDIF
710	ENDIF
711
712	ENDIF
713	!
714	!-- Tendency terms for v-velocity component. Please note, in case of
715	!-- non-cyclic boundary conditions the grid point j=0 is excluded from
716	!-- the prognostic equations for the v-component. !--
717	IF ( j >= nysv ) THEN
718
719	tend(:,j,i) = 0.0_wp
720	IF ( timestep_scheme(1:5) == 'runge' ) THEN
721	IF ( ws_scheme_mom ) THEN
722	CALL advec_v_ws( i, j, i_omp_start, tn )
723	ELSE
724	CALL advec_v_pw( i, j )
725	ENDIF
726	ELSE
727	CALL advec_v_up( i, j )
728	ENDIF
729	CALL diffusion_v( i, j )
730	CALL coriolis( i, j, 2 )
731
732	!
733	!-- Drag by plant canopy
734	IF ( plant_canopy ) CALL pcm_tendency( i, j, 2 )
735
736	!
737	!-- External pressure gradient
738	IF ( dp_external ) THEN
739	DO k = dp_level_ind_b+1, nzt
740	tend(k,j,i) = tend(k,j,i) - dpdxy(2) * dp_smooth_factor(k)
741	ENDDO
742	ENDIF
743
744	!
745	!-- Nudging
746	IF ( nudging ) CALL nudge( i, j, simulated_time, 'v' )
747
748	!
749	!-- Effect of Stokes drift (in ocean mode only)
750	IF ( stokes_force ) CALL stokes_drift_terms( i, j, 2 )
751
752	CALL module_interface_actions( i, j, 'v-tendency' )
753	!
754	!-- Prognostic equation for v-velocity component
755	DO k = nzb+1, nzt
756	v_p(k,j,i) = v(k,j,i) + ( dt_3d * &
757	( tsc(2) * tend(k,j,i) + &
758	tsc(3) * tv_m(k,j,i) ) &
759	- tsc(5) * rdf(k) &
760	* ( v(k,j,i) - v_init(k) )&
761	) * MERGE( 1.0_wp, 0.0_wp, &
762	BTEST( wall_flags_0(k,j,i), 2 )&
763	)
764	ENDDO
765
766	!
767	!-- Add turbulence generated by wave breaking (in ocean mode only)
768	IF ( wave_breaking .AND. &
769	intermediate_timestep_count == intermediate_timestep_count_max )&
770	THEN
771	CALL wave_breaking_term( i, j, 2 )
772	ENDIF
773
774	!
775	!-- Calculate tendencies for the next Runge-Kutta step
776	IF ( timestep_scheme(1:5) == 'runge' ) THEN
777	IF ( intermediate_timestep_count == 1 ) THEN
778	DO k = nzb+1, nzt
779	tv_m(k,j,i) = tend(k,j,i)
780	ENDDO
781	ELSEIF ( intermediate_timestep_count < &
782	intermediate_timestep_count_max ) THEN
783	DO k = nzb+1, nzt
784	tv_m(k,j,i) = -9.5625_wp * tend(k,j,i) &
785	+ 5.3125_wp * tv_m(k,j,i)
786	ENDDO
787	ENDIF
788	ENDIF
789
790	ENDIF
791
792	!
793	!-- Tendency terms for w-velocity component
794	tend(:,j,i) = 0.0_wp
795	IF ( timestep_scheme(1:5) == 'runge' ) THEN
796	IF ( ws_scheme_mom ) THEN
797	CALL advec_w_ws( i, j, i_omp_start, tn )
798	ELSE
799	CALL advec_w_pw( i, j )
800	END IF
801	ELSE
802	CALL advec_w_up( i, j )
803	ENDIF
804	CALL diffusion_w( i, j )
805	CALL coriolis( i, j, 3 )
806
807	IF ( .NOT. neutral ) THEN
808	IF ( ocean_mode ) THEN
809	CALL buoyancy( i, j, rho_ocean, 3 )
810	ELSE
811	IF ( .NOT. humidity ) THEN
812	CALL buoyancy( i, j, pt, 3 )
813	ELSE
814	CALL buoyancy( i, j, vpt, 3 )
815	ENDIF
816	ENDIF
817	ENDIF
818
819	!
820	!-- Drag by plant canopy
821	IF ( plant_canopy ) CALL pcm_tendency( i, j, 3 )
822
823	!
824	!-- Effect of Stokes drift (in ocean mode only)
825	IF ( stokes_force ) CALL stokes_drift_terms( i, j, 3 )
826
827	CALL module_interface_actions( i, j, 'w-tendency' )
828	!
829	!-- Prognostic equation for w-velocity component
830	DO k = nzb+1, nzt-1
831	w_p(k,j,i) = w(k,j,i) + ( dt_3d * &
832	( tsc(2) * tend(k,j,i) + &
833	tsc(3) * tw_m(k,j,i) ) &
834	- tsc(5) * rdf(k) * w(k,j,i) &
835	) * MERGE( 1.0_wp, 0.0_wp, &
836	BTEST( wall_flags_0(k,j,i), 3 )&
837	)
838	ENDDO
839
840	!
841	!-- Calculate tendencies for the next Runge-Kutta step
842	IF ( timestep_scheme(1:5) == 'runge' ) THEN
843	IF ( intermediate_timestep_count == 1 ) THEN
844	DO k = nzb+1, nzt-1
845	tw_m(k,j,i) = tend(k,j,i)
846	ENDDO
847	ELSEIF ( intermediate_timestep_count < &
848	intermediate_timestep_count_max ) THEN
849	DO k = nzb+1, nzt-1
850	tw_m(k,j,i) = -9.5625_wp * tend(k,j,i) &
851	+ 5.3125_wp * tw_m(k,j,i)
852	ENDDO
853	ENDIF
854	ENDIF
855
856	!
857	!-- If required, compute prognostic equation for potential temperature
858	IF ( .NOT. neutral ) THEN
859	!
860	!-- Tendency terms for potential temperature
861	tend(:,j,i) = 0.0_wp
862	IF ( timestep_scheme(1:5) == 'runge' ) THEN
863	IF ( ws_scheme_sca ) THEN
864	CALL advec_s_ws( i, j, pt, 'pt', flux_s_pt, diss_s_pt, &
865	flux_l_pt, diss_l_pt, i_omp_start, tn )
866	ELSE
867	CALL advec_s_pw( i, j, pt )
868	ENDIF
869	ELSE
870	CALL advec_s_up( i, j, pt )
871	ENDIF
872	CALL diffusion_s( i, j, pt, &
873	surf_def_h(0)%shf, surf_def_h(1)%shf, &
874	surf_def_h(2)%shf, &
875	surf_lsm_h%shf, surf_usm_h%shf, &
876	surf_def_v(0)%shf, surf_def_v(1)%shf, &
877	surf_def_v(2)%shf, surf_def_v(3)%shf, &
878	surf_lsm_v(0)%shf, surf_lsm_v(1)%shf, &
879	surf_lsm_v(2)%shf, surf_lsm_v(3)%shf, &
880	surf_usm_v(0)%shf, surf_usm_v(1)%shf, &
881	surf_usm_v(2)%shf, surf_usm_v(3)%shf )
882
883	!
884	!-- Consideration of heat sources within the plant canopy
885	IF ( plant_canopy .AND. &
886	(cthf /= 0.0_wp .OR. urban_surface .OR. land_surface) ) THEN
887	CALL pcm_tendency( i, j, 4 )
888	ENDIF
889
890	!
891	!-- Large scale advection
892	IF ( large_scale_forcing ) THEN
893	CALL ls_advec( i, j, simulated_time, 'pt' )
894	ENDIF
895
896	!
897	!-- Nudging
898	IF ( nudging ) CALL nudge( i, j, simulated_time, 'pt' )
899
900	!
901	!-- If required, compute effect of large-scale subsidence/ascent
902	IF ( large_scale_subsidence .AND. &
903	.NOT. use_subsidence_tendencies ) THEN
904	CALL subsidence( i, j, tend, pt, pt_init, 2 )
905	ENDIF
906
907	#if defined( __rrtmg )
908	!
909	!-- If required, add tendency due to radiative heating/cooling
910	IF ( radiation .AND. &
911	simulated_time > skip_time_do_radiation ) THEN
912	CALL radiation_tendency ( i, j, tend )
913	ENDIF
914	#endif
915
916	CALL module_interface_actions( i, j, 'pt-tendency' )
917	!
918	!-- Prognostic equation for potential temperature
919	DO k = nzb+1, nzt
920	pt_p(k,j,i) = pt(k,j,i) + ( dt_3d * &
921	( tsc(2) * tend(k,j,i) + &
922	tsc(3) * tpt_m(k,j,i) ) &
923	- tsc(5) &
924	* ( pt(k,j,i) - pt_init(k) ) &
925	* ( rdf_sc(k) + ptdf_x(i) &
926	+ ptdf_y(j) ) &
927	) &
928	* MERGE( 1.0_wp, 0.0_wp, &
929	BTEST( wall_flags_0(k,j,i), 0 )&
930	)
931	ENDDO
932
933	!
934	!-- Calculate tendencies for the next Runge-Kutta step
935	IF ( timestep_scheme(1:5) == 'runge' ) THEN
936	IF ( intermediate_timestep_count == 1 ) THEN
937	DO k = nzb+1, nzt
938	tpt_m(k,j,i) = tend(k,j,i)
939	ENDDO
940	ELSEIF ( intermediate_timestep_count < &
941	intermediate_timestep_count_max ) THEN
942	DO k = nzb+1, nzt
943	tpt_m(k,j,i) = -9.5625_wp * tend(k,j,i) + &
944	5.3125_wp * tpt_m(k,j,i)
945	ENDDO
946	ENDIF
947	ENDIF
948
949	ENDIF
950
951	!
952	!-- If required, compute prognostic equation for total water content
953	IF ( humidity ) THEN
954
955	!
956	!-- Tendency-terms for total water content / scalar
957	tend(:,j,i) = 0.0_wp
958	IF ( timestep_scheme(1:5) == 'runge' ) &
959	THEN
960	IF ( ws_scheme_sca ) THEN
961	CALL advec_s_ws( i, j, q, 'q', flux_s_q, &
962	diss_s_q, flux_l_q, diss_l_q, i_omp_start, tn )
963	ELSE
964	CALL advec_s_pw( i, j, q )
965	ENDIF
966	ELSE
967	CALL advec_s_up( i, j, q )
968	ENDIF
969	CALL diffusion_s( i, j, q, &
970	surf_def_h(0)%qsws, surf_def_h(1)%qsws, &
971	surf_def_h(2)%qsws, &
972	surf_lsm_h%qsws, surf_usm_h%qsws, &
973	surf_def_v(0)%qsws, surf_def_v(1)%qsws, &
974	surf_def_v(2)%qsws, surf_def_v(3)%qsws, &
975	surf_lsm_v(0)%qsws, surf_lsm_v(1)%qsws, &
976	surf_lsm_v(2)%qsws, surf_lsm_v(3)%qsws, &
977	surf_usm_v(0)%qsws, surf_usm_v(1)%qsws, &
978	surf_usm_v(2)%qsws, surf_usm_v(3)%qsws )
979
980	!
981	!-- Sink or source of humidity due to canopy elements
982	IF ( plant_canopy ) CALL pcm_tendency( i, j, 5 )
983
984	!
985	!-- Large scale advection
986	IF ( large_scale_forcing ) THEN
987	CALL ls_advec( i, j, simulated_time, 'q' )
988	ENDIF
989
990	!
991	!-- Nudging
992	IF ( nudging ) CALL nudge( i, j, simulated_time, 'q' )
993
994	!
995	!-- If required compute influence of large-scale subsidence/ascent
996	IF ( large_scale_subsidence .AND. &
997	.NOT. use_subsidence_tendencies ) THEN
998	CALL subsidence( i, j, tend, q, q_init, 3 )
999	ENDIF
1000
1001	CALL module_interface_actions( i, j, 'q-tendency' )
1002
1003	!
1004	!-- Prognostic equation for total water content / scalar
1005	DO k = nzb+1, nzt
1006	q_p(k,j,i) = q(k,j,i) + ( dt_3d * &
1007	( tsc(2) * tend(k,j,i) + &
1008	tsc(3) * tq_m(k,j,i) ) &
1009	- tsc(5) * rdf_sc(k) * &
1010	( q(k,j,i) - q_init(k) ) &
1011	) &
1012	* MERGE( 1.0_wp, 0.0_wp, &
1013	BTEST( wall_flags_0(k,j,i), 0 )&
1014	)
1015	IF ( q_p(k,j,i) < 0.0_wp ) q_p(k,j,i) = 0.1_wp * q(k,j,i)
1016	ENDDO
1017
1018	!
1019	!-- Calculate tendencies for the next Runge-Kutta step
1020	IF ( timestep_scheme(1:5) == 'runge' ) THEN
1021	IF ( intermediate_timestep_count == 1 ) THEN
1022	DO k = nzb+1, nzt
1023	tq_m(k,j,i) = tend(k,j,i)
1024	ENDDO
1025	ELSEIF ( intermediate_timestep_count < &
1026	intermediate_timestep_count_max ) THEN
1027	DO k = nzb+1, nzt
1028	tq_m(k,j,i) = -9.5625_wp * tend(k,j,i) + &
1029	5.3125_wp * tq_m(k,j,i)
1030	ENDDO
1031	ENDIF
1032	ENDIF
1033
1034	ENDIF
1035
1036	!
1037	!-- If required, compute prognostic equation for scalar
1038	IF ( passive_scalar ) THEN
1039	!
1040	!-- Tendency-terms for total water content / scalar
1041	tend(:,j,i) = 0.0_wp
1042	IF ( timestep_scheme(1:5) == 'runge' ) &
1043	THEN
1044	IF ( ws_scheme_sca ) THEN
1045	CALL advec_s_ws( i, j, s, 's', flux_s_s, &
1046	diss_s_s, flux_l_s, diss_l_s, i_omp_start, tn )
1047	ELSE
1048	CALL advec_s_pw( i, j, s )
1049	ENDIF
1050	ELSE
1051	CALL advec_s_up( i, j, s )
1052	ENDIF
1053	CALL diffusion_s( i, j, s, &
1054	surf_def_h(0)%ssws, surf_def_h(1)%ssws, &
1055	surf_def_h(2)%ssws, &
1056	surf_lsm_h%ssws, surf_usm_h%ssws, &
1057	surf_def_v(0)%ssws, surf_def_v(1)%ssws, &
1058	surf_def_v(2)%ssws, surf_def_v(3)%ssws, &
1059	surf_lsm_v(0)%ssws, surf_lsm_v(1)%ssws, &
1060	surf_lsm_v(2)%ssws, surf_lsm_v(3)%ssws, &
1061	surf_usm_v(0)%ssws, surf_usm_v(1)%ssws, &
1062	surf_usm_v(2)%ssws, surf_usm_v(3)%ssws )
1063
1064	!
1065	!-- Sink or source of scalar concentration due to canopy elements
1066	IF ( plant_canopy ) CALL pcm_tendency( i, j, 7 )
1067
1068	!
1069	!-- Large scale advection, still need to be extended for scalars
1070	! IF ( large_scale_forcing ) THEN
1071	! CALL ls_advec( i, j, simulated_time, 's' )
1072	! ENDIF
1073
1074	!
1075	!-- Nudging, still need to be extended for scalars
1076	! IF ( nudging ) CALL nudge( i, j, simulated_time, 's' )
1077
1078	!
1079	!-- If required compute influence of large-scale subsidence/ascent.
1080	!-- Note, the last argument is of no meaning in this case, as it is
1081	!-- only used in conjunction with large_scale_forcing, which is to
1082	!-- date not implemented for scalars.
1083	IF ( large_scale_subsidence .AND. &
1084	.NOT. use_subsidence_tendencies .AND. &
1085	.NOT. large_scale_forcing ) THEN
1086	CALL subsidence( i, j, tend, s, s_init, 3 )
1087	ENDIF
1088
1089	CALL module_interface_actions( i, j, 's-tendency' )
1090
1091	!
1092	!-- Prognostic equation for scalar
1093	DO k = nzb+1, nzt
1094	s_p(k,j,i) = s(k,j,i) + ( dt_3d * &
1095	( tsc(2) * tend(k,j,i) + &
1096	tsc(3) * ts_m(k,j,i) ) &
1097	- tsc(5) * rdf_sc(k) &
1098	* ( s(k,j,i) - s_init(k) )&
1099	) &
1100	* MERGE( 1.0_wp, 0.0_wp, &
1101	BTEST( wall_flags_0(k,j,i), 0 )&
1102	)
1103	IF ( s_p(k,j,i) < 0.0_wp ) s_p(k,j,i) = 0.1_wp * s(k,j,i)
1104	ENDDO
1105
1106	!
1107	!-- Calculate tendencies for the next Runge-Kutta step
1108	IF ( timestep_scheme(1:5) == 'runge' ) THEN
1109	IF ( intermediate_timestep_count == 1 ) THEN
1110	DO k = nzb+1, nzt
1111	ts_m(k,j,i) = tend(k,j,i)
1112	ENDDO
1113	ELSEIF ( intermediate_timestep_count < &
1114	intermediate_timestep_count_max ) THEN
1115	DO k = nzb+1, nzt
1116	ts_m(k,j,i) = -9.5625_wp * tend(k,j,i) + &
1117	5.3125_wp * ts_m(k,j,i)
1118	ENDDO
1119	ENDIF
1120	ENDIF
1121
1122	ENDIF
1123	!
1124	!-- Calculate prognostic equations for turbulence closure
1125	CALL tcm_prognostic_equations( i, j, i_omp_start, tn )
1126	!
1127	!-- Calculate prognostic equations for all other modules
1128	CALL module_interface_prognostic_equations( i, j, i_omp_start, tn )
1129
1130	ENDDO ! loop over j
1131	ENDDO ! loop over i
1132	!$OMP END PARALLEL
1133
1134
1135	CALL cpu_log( log_point(32), 'all progn.equations', 'stop' )
1136
1137	IF ( debug_output ) THEN
1138	WRITE( debug_string, * ) 'prognostic_equations_cache'
1139	CALL debug_message( debug_string, 'end' )
1140	ENDIF
1141
1142	END SUBROUTINE prognostic_equations_cache
1143
1144
1145	!------------------------------------------------------------------------------!
1146	! Description:
1147	! ------------
1148	!> Version for vector machines
1149	!------------------------------------------------------------------------------!
1150
1151	SUBROUTINE prognostic_equations_vector
1152
1153
1154	INTEGER(iwp) :: i !<
1155	INTEGER(iwp) :: ib !< index for aerosol size bins (salsa)
1156	INTEGER(iwp) :: ic !< index for chemical compounds (salsa)
1157	INTEGER(iwp) :: icc !< additional index for chemical compounds (salsa)
1158	INTEGER(iwp) :: ig !< index for gaseous compounds (salsa)
1159	INTEGER(iwp) :: j !<
1160	INTEGER(iwp) :: k !<
1161
1162	REAL(wp) :: sbt !<
1163
1164
1165	IF ( debug_output ) THEN
1166	WRITE( debug_string, * ) 'prognostic_equations_vector'
1167	CALL debug_message( debug_string, 'start' )
1168	ENDIF
1169	!
1170	!-- Run SALSA and aerosol dynamic processes. SALSA is run with a longer time
1171	!-- step. The exchange of ghost points is required after this update of the
1172	!-- concentrations of aerosol number and mass
1173	IF ( salsa ) THEN
1174	IF ( time_since_reference_point >= skip_time_do_salsa ) THEN
1175	IF ( ( time_since_reference_point - last_salsa_time ) >= dt_salsa ) &
1176	THEN
1177	CALL cpu_log( log_point_s(90), 'salsa processes ', 'start' )
1178	!$OMP PARALLEL PRIVATE (i,j)
1179	!$OMP DO
1180	!
1181	!-- Call salsa processes
1182	DO i = nxl, nxr
1183	DO j = nys, nyn
1184	CALL salsa_diagnostics( i, j )
1185	CALL salsa_driver( i, j, 3 )
1186	CALL salsa_diagnostics( i, j )
1187	ENDDO
1188	ENDDO
1189	!$OMP END PARALLEL
1190
1191	CALL cpu_log( log_point_s(90), 'salsa processes ', 'stop' )
1192	CALL cpu_log( log_point_s(91), 'salsa exch-horiz ', 'start' )
1193	!
1194	!-- Exchange ghost points and decycle if needed.
1195	DO ib = 1, nbins_aerosol
1196	CALL exchange_horiz( aerosol_number(ib)%conc, nbgp )
1197	CALL salsa_boundary_conds( aerosol_number(ib)%conc, &
1198	aerosol_number(ib)%init )
1199	DO ic = 1, ncomponents_mass
1200	icc = ( ic - 1 ) * nbins_aerosol + ib
1201	CALL exchange_horiz( aerosol_mass(icc)%conc, nbgp )
1202	CALL salsa_boundary_conds( aerosol_mass(icc)%conc, &
1203	aerosol_mass(icc)%init )
1204	ENDDO
1205	ENDDO
1206	IF ( .NOT. salsa_gases_from_chem ) THEN
1207	DO ig = 1, ngases_salsa
1208	CALL exchange_horiz( salsa_gas(ig)%conc, nbgp )
1209	CALL salsa_boundary_conds( salsa_gas(ig)%conc, &
1210	salsa_gas(ig)%init )
1211	ENDDO
1212	ENDIF
1213	CALL cpu_log( log_point_s(91), 'salsa exch-horiz ', 'stop' )
1214	last_salsa_time = time_since_reference_point
1215	ENDIF
1216	ENDIF
1217	ENDIF
1218
1219	!
1220	!-- Calculate non transport physics for all other modules
1221	CALL module_interface_non_transport_physics
1222	!
1223	!-- Module Inferface for exchange horiz after non_transport_physics but before
1224	!-- advection. Therefore, non_transport_physics must not run for ghost points.
1225	CALL module_interface_exchange_horiz()
1226
1227	!
1228	!-- u-velocity component
1229	CALL cpu_log( log_point(5), 'u-equation', 'start' )
1230
1231	!$ACC KERNELS PRESENT(tend)
1232	tend = 0.0_wp
1233	!$ACC END KERNELS
1234	IF ( timestep_scheme(1:5) == 'runge' ) THEN
1235	IF ( ws_scheme_mom ) THEN
1236	CALL advec_u_ws
1237	ELSE
1238	CALL advec_u_pw
1239	ENDIF
1240	ELSE
1241	CALL advec_u_up
1242	ENDIF
1243	CALL diffusion_u
1244	CALL coriolis( 1 )
1245	IF ( sloping_surface .AND. .NOT. neutral ) THEN
1246	CALL buoyancy( pt, 1 )
1247	ENDIF
1248
1249	!
1250	!-- Drag by plant canopy
1251	IF ( plant_canopy ) CALL pcm_tendency( 1 )
1252
1253	!
1254	!-- External pressure gradient
1255	IF ( dp_external ) THEN
1256	DO i = nxlu, nxr
1257	DO j = nys, nyn
1258	DO k = dp_level_ind_b+1, nzt
1259	tend(k,j,i) = tend(k,j,i) - dpdxy(1) * dp_smooth_factor(k)
1260	ENDDO
1261	ENDDO
1262	ENDDO
1263	ENDIF
1264
1265	!
1266	!-- Nudging
1267	IF ( nudging ) CALL nudge( simulated_time, 'u' )
1268
1269	!
1270	!-- Effect of Stokes drift (in ocean mode only)
1271	IF ( stokes_force ) CALL stokes_drift_terms( 1 )
1272
1273	CALL module_interface_actions( 'u-tendency' )
1274
1275	!
1276	!-- Prognostic equation for u-velocity component
1277	!$ACC PARALLEL LOOP COLLAPSE(3) PRIVATE(i, j, k) &
1278	!$ACC PRESENT(u, tend, tu_m, u_init, rdf, wall_flags_0) &
1279	!$ACC PRESENT(tsc(2:5)) &
1280	!$ACC PRESENT(u_p)
1281	DO i = nxlu, nxr
1282	DO j = nys, nyn
1283	DO k = nzb+1, nzt
1284	u_p(k,j,i) = u(k,j,i) + ( dt_3d * ( tsc(2) * tend(k,j,i) + &
1285	tsc(3) * tu_m(k,j,i) ) &
1286	- tsc(5) * rdf(k) * &
1287	( u(k,j,i) - u_init(k) ) &
1288	) * MERGE( 1.0_wp, 0.0_wp, &
1289	BTEST( wall_flags_0(k,j,i), 1 ) &
1290	)
1291	ENDDO
1292	ENDDO
1293	ENDDO
1294
1295	!
1296	!-- Add turbulence generated by wave breaking (in ocean mode only)
1297	IF ( wave_breaking .AND. &
1298	intermediate_timestep_count == intermediate_timestep_count_max ) &
1299	THEN
1300	CALL wave_breaking_term( 1 )
1301	ENDIF
1302
1303	!
1304	!-- Calculate tendencies for the next Runge-Kutta step
1305	IF ( timestep_scheme(1:5) == 'runge' ) THEN
1306	IF ( intermediate_timestep_count == 1 ) THEN
1307	!$ACC PARALLEL LOOP COLLAPSE(3) PRIVATE(i, j, k) &
1308	!$ACC PRESENT(tend, tu_m)
1309	DO i = nxlu, nxr
1310	DO j = nys, nyn
1311	DO k = nzb+1, nzt
1312	tu_m(k,j,i) = tend(k,j,i)
1313	ENDDO
1314	ENDDO
1315	ENDDO
1316	ELSEIF ( intermediate_timestep_count < &
1317	intermediate_timestep_count_max ) THEN
1318	!$ACC PARALLEL LOOP COLLAPSE(3) PRIVATE(i, j, k) &
1319	!$ACC PRESENT(tend, tu_m)
1320	DO i = nxlu, nxr
1321	DO j = nys, nyn
1322	DO k = nzb+1, nzt
1323	tu_m(k,j,i) = -9.5625_wp * tend(k,j,i) &
1324	+ 5.3125_wp * tu_m(k,j,i)
1325	ENDDO
1326	ENDDO
1327	ENDDO
1328	ENDIF
1329	ENDIF
1330
1331	CALL cpu_log( log_point(5), 'u-equation', 'stop' )
1332
1333	!
1334	!-- v-velocity component
1335	CALL cpu_log( log_point(6), 'v-equation', 'start' )
1336
1337	!$ACC KERNELS PRESENT(tend)
1338	tend = 0.0_wp
1339	!$ACC END KERNELS
1340	IF ( timestep_scheme(1:5) == 'runge' ) THEN
1341	IF ( ws_scheme_mom ) THEN
1342	CALL advec_v_ws
1343	ELSE
1344	CALL advec_v_pw
1345	END IF
1346	ELSE
1347	CALL advec_v_up
1348	ENDIF
1349	CALL diffusion_v
1350	CALL coriolis( 2 )
1351
1352	!
1353	!-- Drag by plant canopy
1354	IF ( plant_canopy ) CALL pcm_tendency( 2 )
1355
1356	!
1357	!-- External pressure gradient
1358	IF ( dp_external ) THEN
1359	DO i = nxl, nxr
1360	DO j = nysv, nyn
1361	DO k = dp_level_ind_b+1, nzt
1362	tend(k,j,i) = tend(k,j,i) - dpdxy(2) * dp_smooth_factor(k)
1363	ENDDO
1364	ENDDO
1365	ENDDO
1366	ENDIF
1367
1368	!
1369	!-- Nudging
1370	IF ( nudging ) CALL nudge( simulated_time, 'v' )
1371
1372	!
1373	!-- Effect of Stokes drift (in ocean mode only)
1374	IF ( stokes_force ) CALL stokes_drift_terms( 2 )
1375
1376	CALL module_interface_actions( 'v-tendency' )
1377
1378	!
1379	!-- Prognostic equation for v-velocity component
1380	!$ACC PARALLEL LOOP COLLAPSE(3) PRIVATE(i, j, k) &
1381	!$ACC PRESENT(v, tend, tv_m, v_init, rdf, wall_flags_0) &
1382	!$ACC PRESENT(tsc(2:5)) &
1383	!$ACC PRESENT(v_p)
1384	DO i = nxl, nxr
1385	DO j = nysv, nyn
1386	DO k = nzb+1, nzt
1387	v_p(k,j,i) = v(k,j,i) + ( dt_3d * ( tsc(2) * tend(k,j,i) + &
1388	tsc(3) * tv_m(k,j,i) ) &
1389	- tsc(5) * rdf(k) * &
1390	( v(k,j,i) - v_init(k) ) &
1391	) * MERGE( 1.0_wp, 0.0_wp, &
1392	BTEST( wall_flags_0(k,j,i), 2 )&
1393	)
1394	ENDDO
1395	ENDDO
1396	ENDDO
1397
1398	!
1399	!-- Add turbulence generated by wave breaking (in ocean mode only)
1400	IF ( wave_breaking .AND. &
1401	intermediate_timestep_count == intermediate_timestep_count_max ) &
1402	THEN
1403	CALL wave_breaking_term( 2 )
1404	ENDIF
1405
1406	!
1407	!-- Calculate tendencies for the next Runge-Kutta step
1408	IF ( timestep_scheme(1:5) == 'runge' ) THEN
1409	IF ( intermediate_timestep_count == 1 ) THEN
1410	!$ACC PARALLEL LOOP COLLAPSE(3) PRIVATE(i, j, k) &
1411	!$ACC PRESENT(tend, tv_m)
1412	DO i = nxl, nxr
1413	DO j = nysv, nyn
1414	DO k = nzb+1, nzt
1415	tv_m(k,j,i) = tend(k,j,i)
1416	ENDDO
1417	ENDDO
1418	ENDDO
1419	ELSEIF ( intermediate_timestep_count < &
1420	intermediate_timestep_count_max ) THEN
1421	!$ACC PARALLEL LOOP COLLAPSE(3) PRIVATE(i, j, k) &
1422	!$ACC PRESENT(tend, tv_m)
1423	DO i = nxl, nxr
1424	DO j = nysv, nyn
1425	DO k = nzb+1, nzt
1426	tv_m(k,j,i) = -9.5625_wp * tend(k,j,i) &
1427	+ 5.3125_wp * tv_m(k,j,i)
1428	ENDDO
1429	ENDDO
1430	ENDDO
1431	ENDIF
1432	ENDIF
1433
1434	CALL cpu_log( log_point(6), 'v-equation', 'stop' )
1435
1436	!
1437	!-- w-velocity component
1438	CALL cpu_log( log_point(7), 'w-equation', 'start' )
1439
1440	!$ACC KERNELS PRESENT(tend)
1441	tend = 0.0_wp
1442	!$ACC END KERNELS
1443	IF ( timestep_scheme(1:5) == 'runge' ) THEN
1444	IF ( ws_scheme_mom ) THEN
1445	CALL advec_w_ws
1446	ELSE
1447	CALL advec_w_pw
1448	ENDIF
1449	ELSE
1450	CALL advec_w_up
1451	ENDIF
1452	CALL diffusion_w
1453	CALL coriolis( 3 )
1454
1455	IF ( .NOT. neutral ) THEN
1456	IF ( ocean_mode ) THEN
1457	CALL buoyancy( rho_ocean, 3 )
1458	ELSE
1459	IF ( .NOT. humidity ) THEN
1460	CALL buoyancy( pt, 3 )
1461	ELSE
1462	CALL buoyancy( vpt, 3 )
1463	ENDIF
1464	ENDIF
1465	ENDIF
1466
1467	!
1468	!-- Drag by plant canopy
1469	IF ( plant_canopy ) CALL pcm_tendency( 3 )
1470
1471	!
1472	!-- Effect of Stokes drift (in ocean mode only)
1473	IF ( stokes_force ) CALL stokes_drift_terms( 3 )
1474
1475	CALL module_interface_actions( 'w-tendency' )
1476
1477	!
1478	!-- Prognostic equation for w-velocity component
1479	!$ACC PARALLEL LOOP COLLAPSE(3) PRIVATE(i, j, k) &
1480	!$ACC PRESENT(w, tend, tw_m, v_init, rdf, wall_flags_0) &
1481	!$ACC PRESENT(tsc(2:5)) &
1482	!$ACC PRESENT(w_p)
1483	DO i = nxl, nxr
1484	DO j = nys, nyn
1485	DO k = nzb+1, nzt-1
1486	w_p(k,j,i) = w(k,j,i) + ( dt_3d * ( tsc(2) * tend(k,j,i) + &
1487	tsc(3) * tw_m(k,j,i) ) &
1488	- tsc(5) * rdf(k) * w(k,j,i) &
1489	) * MERGE( 1.0_wp, 0.0_wp, &
1490	BTEST( wall_flags_0(k,j,i), 3 )&
1491	)
1492	ENDDO
1493	ENDDO
1494	ENDDO
1495
1496	!
1497	!-- Calculate tendencies for the next Runge-Kutta step
1498	IF ( timestep_scheme(1:5) == 'runge' ) THEN
1499	IF ( intermediate_timestep_count == 1 ) THEN
1500	!$ACC PARALLEL LOOP COLLAPSE(3) PRIVATE(i, j, k) &
1501	!$ACC PRESENT(tend, tw_m)
1502	DO i = nxl, nxr
1503	DO j = nys, nyn
1504	DO k = nzb+1, nzt-1
1505	tw_m(k,j,i) = tend(k,j,i)
1506	ENDDO
1507	ENDDO
1508	ENDDO
1509	ELSEIF ( intermediate_timestep_count < &
1510	intermediate_timestep_count_max ) THEN
1511	!$ACC PARALLEL LOOP COLLAPSE(3) PRIVATE(i, j, k) &
1512	!$ACC PRESENT(tend, tw_m)
1513	DO i = nxl, nxr
1514	DO j = nys, nyn
1515	DO k = nzb+1, nzt-1
1516	tw_m(k,j,i) = -9.5625_wp * tend(k,j,i) &
1517	+ 5.3125_wp * tw_m(k,j,i)
1518	ENDDO
1519	ENDDO
1520	ENDDO
1521	ENDIF
1522	ENDIF
1523
1524	CALL cpu_log( log_point(7), 'w-equation', 'stop' )
1525
1526
1527	!
1528	!-- If required, compute prognostic equation for potential temperature
1529	IF ( .NOT. neutral ) THEN
1530
1531	CALL cpu_log( log_point(13), 'pt-equation', 'start' )
1532
1533	!
1534	!-- pt-tendency terms with communication
1535	sbt = tsc(2)
1536	IF ( scalar_advec == 'bc-scheme' ) THEN
1537
1538	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
1539	!
1540	!-- Bott-Chlond scheme always uses Euler time step. Thus:
1541	sbt = 1.0_wp
1542	ENDIF
1543	tend = 0.0_wp
1544	CALL advec_s_bc( pt, 'pt' )
1545
1546	ENDIF
1547
1548	!
1549	!-- pt-tendency terms with no communication
1550	IF ( scalar_advec /= 'bc-scheme' ) THEN
1551	!$ACC KERNELS PRESENT(tend)
1552	tend = 0.0_wp
1553	!$ACC END KERNELS
1554	IF ( timestep_scheme(1:5) == 'runge' ) THEN
1555	IF ( ws_scheme_sca ) THEN
1556	CALL advec_s_ws( pt, 'pt' )
1557	ELSE
1558	CALL advec_s_pw( pt )
1559	ENDIF
1560	ELSE
1561	CALL advec_s_up( pt )
1562	ENDIF
1563	ENDIF
1564
1565	CALL diffusion_s( pt, &
1566	surf_def_h(0)%shf, surf_def_h(1)%shf, &
1567	surf_def_h(2)%shf, &
1568	surf_lsm_h%shf, surf_usm_h%shf, &
1569	surf_def_v(0)%shf, surf_def_v(1)%shf, &
1570	surf_def_v(2)%shf, surf_def_v(3)%shf, &
1571	surf_lsm_v(0)%shf, surf_lsm_v(1)%shf, &
1572	surf_lsm_v(2)%shf, surf_lsm_v(3)%shf, &
1573	surf_usm_v(0)%shf, surf_usm_v(1)%shf, &
1574	surf_usm_v(2)%shf, surf_usm_v(3)%shf )
1575
1576	!
1577	!-- Consideration of heat sources within the plant canopy
1578	IF ( plant_canopy .AND. &
1579	(cthf /= 0.0_wp .OR. urban_surface .OR. land_surface) ) THEN
1580	CALL pcm_tendency( 4 )
1581	ENDIF
1582
1583	!
1584	!-- Large scale advection
1585	IF ( large_scale_forcing ) THEN
1586	CALL ls_advec( simulated_time, 'pt' )
1587	ENDIF
1588
1589	!
1590	!-- Nudging
1591	IF ( nudging ) CALL nudge( simulated_time, 'pt' )
1592
1593	!
1594	!-- If required compute influence of large-scale subsidence/ascent
1595	IF ( large_scale_subsidence .AND. &
1596	.NOT. use_subsidence_tendencies ) THEN
1597	CALL subsidence( tend, pt, pt_init, 2 )
1598	ENDIF
1599
1600	#if defined( __rrtmg )
1601	!
1602	!-- If required, add tendency due to radiative heating/cooling
1603	IF ( radiation .AND. &
1604	simulated_time > skip_time_do_radiation ) THEN
1605	CALL radiation_tendency ( tend )
1606	ENDIF
1607	#endif
1608
1609	CALL module_interface_actions( 'pt-tendency' )
1610
1611	!
1612	!-- Prognostic equation for potential temperature
1613	!$ACC PARALLEL LOOP COLLAPSE(3) PRIVATE(i, j, k) &
1614	!$ACC PRESENT(pt, tend, tpt_m, wall_flags_0) &
1615	!$ACC PRESENT(pt_init, rdf_sc, ptdf_x, ptdf_y) &
1616	!$ACC PRESENT(tsc(3:5)) &
1617	!$ACC PRESENT(pt_p)
1618	DO i = nxl, nxr
1619	DO j = nys, nyn
1620	DO k = nzb+1, nzt
1621	pt_p(k,j,i) = pt(k,j,i) + ( dt_3d * ( sbt * tend(k,j,i) + &
1622	tsc(3) * tpt_m(k,j,i) ) &
1623	- tsc(5) * &
1624	( pt(k,j,i) - pt_init(k) ) *&
1625	( rdf_sc(k) + ptdf_x(i) + ptdf_y(j) )&
1626	) &
1627	* MERGE( 1.0_wp, 0.0_wp, &
1628	BTEST( wall_flags_0(k,j,i), 0 ) &
1629	)
1630	ENDDO
1631	ENDDO
1632	ENDDO
1633	!
1634	!-- Calculate tendencies for the next Runge-Kutta step
1635	IF ( timestep_scheme(1:5) == 'runge' ) THEN
1636	IF ( intermediate_timestep_count == 1 ) THEN
1637	!$ACC PARALLEL LOOP COLLAPSE(3) PRIVATE(i, j, k) &
1638	!$ACC PRESENT(tend, tpt_m)
1639	DO i = nxl, nxr
1640	DO j = nys, nyn
1641	DO k = nzb+1, nzt
1642	tpt_m(k,j,i) = tend(k,j,i)
1643	ENDDO
1644	ENDDO
1645	ENDDO
1646	ELSEIF ( intermediate_timestep_count < &
1647	intermediate_timestep_count_max ) THEN
1648	!$ACC PARALLEL LOOP COLLAPSE(3) PRIVATE(i, j, k) &
1649	!$ACC PRESENT(tend, tpt_m)
1650	DO i = nxl, nxr
1651	DO j = nys, nyn
1652	DO k = nzb+1, nzt
1653	tpt_m(k,j,i) = -9.5625_wp * tend(k,j,i) + &
1654	5.3125_wp * tpt_m(k,j,i)
1655	ENDDO
1656	ENDDO
1657	ENDDO
1658	ENDIF
1659	ENDIF
1660
1661	CALL cpu_log( log_point(13), 'pt-equation', 'stop' )
1662
1663	ENDIF
1664
1665	!
1666	!-- If required, compute prognostic equation for total water content
1667	IF ( humidity ) THEN
1668
1669	CALL cpu_log( log_point(29), 'q-equation', 'start' )
1670
1671	!
1672	!-- Scalar/q-tendency terms with communication
1673	sbt = tsc(2)
1674	IF ( scalar_advec == 'bc-scheme' ) THEN
1675
1676	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
1677	!
1678	!-- Bott-Chlond scheme always uses Euler time step. Thus:
1679	sbt = 1.0_wp
1680	ENDIF
1681	tend = 0.0_wp
1682	CALL advec_s_bc( q, 'q' )
1683
1684	ENDIF
1685
1686	!
1687	!-- Scalar/q-tendency terms with no communication
1688	IF ( scalar_advec /= 'bc-scheme' ) THEN
1689	tend = 0.0_wp
1690	IF ( timestep_scheme(1:5) == 'runge' ) THEN
1691	IF ( ws_scheme_sca ) THEN
1692	CALL advec_s_ws( q, 'q' )
1693	ELSE
1694	CALL advec_s_pw( q )
1695	ENDIF
1696	ELSE
1697	CALL advec_s_up( q )
1698	ENDIF
1699	ENDIF
1700
1701	CALL diffusion_s( q, &
1702	surf_def_h(0)%qsws, surf_def_h(1)%qsws, &
1703	surf_def_h(2)%qsws, &
1704	surf_lsm_h%qsws, surf_usm_h%qsws, &
1705	surf_def_v(0)%qsws, surf_def_v(1)%qsws, &
1706	surf_def_v(2)%qsws, surf_def_v(3)%qsws, &
1707	surf_lsm_v(0)%qsws, surf_lsm_v(1)%qsws, &
1708	surf_lsm_v(2)%qsws, surf_lsm_v(3)%qsws, &
1709	surf_usm_v(0)%qsws, surf_usm_v(1)%qsws, &
1710	surf_usm_v(2)%qsws, surf_usm_v(3)%qsws )
1711
1712	!
1713	!-- Sink or source of humidity due to canopy elements
1714	IF ( plant_canopy ) CALL pcm_tendency( 5 )
1715
1716	!
1717	!-- Large scale advection
1718	IF ( large_scale_forcing ) THEN
1719	CALL ls_advec( simulated_time, 'q' )
1720	ENDIF
1721
1722	!
1723	!-- Nudging
1724	IF ( nudging ) CALL nudge( simulated_time, 'q' )
1725
1726	!
1727	!-- If required compute influence of large-scale subsidence/ascent
1728	IF ( large_scale_subsidence .AND. &
1729	.NOT. use_subsidence_tendencies ) THEN
1730	CALL subsidence( tend, q, q_init, 3 )
1731	ENDIF
1732
1733	CALL module_interface_actions( 'q-tendency' )
1734
1735	!
1736	!-- Prognostic equation for total water content
1737	DO i = nxl, nxr
1738	DO j = nys, nyn
1739	DO k = nzb+1, nzt
1740	q_p(k,j,i) = q(k,j,i) + ( dt_3d * ( sbt * tend(k,j,i) + &
1741	tsc(3) * tq_m(k,j,i) ) &
1742	- tsc(5) * rdf_sc(k) * &
1743	( q(k,j,i) - q_init(k) ) &
1744	) * MERGE( 1.0_wp, 0.0_wp, &
1745	BTEST( wall_flags_0(k,j,i), 0 ) &
1746	)
1747	IF ( q_p(k,j,i) < 0.0_wp ) q_p(k,j,i) = 0.1_wp * q(k,j,i)
1748	ENDDO
1749	ENDDO
1750	ENDDO
1751
1752	!
1753	!-- Calculate tendencies for the next Runge-Kutta step
1754	IF ( timestep_scheme(1:5) == 'runge' ) THEN
1755	IF ( intermediate_timestep_count == 1 ) THEN
1756	DO i = nxl, nxr
1757	DO j = nys, nyn
1758	DO k = nzb+1, nzt
1759	tq_m(k,j,i) = tend(k,j,i)
1760	ENDDO
1761	ENDDO
1762	ENDDO
1763	ELSEIF ( intermediate_timestep_count < &
1764	intermediate_timestep_count_max ) THEN
1765	DO i = nxl, nxr
1766	DO j = nys, nyn
1767	DO k = nzb+1, nzt
1768	tq_m(k,j,i) = -9.5625_wp * tend(k,j,i) &
1769	+ 5.3125_wp * tq_m(k,j,i)
1770	ENDDO
1771	ENDDO
1772	ENDDO
1773	ENDIF
1774	ENDIF
1775
1776	CALL cpu_log( log_point(29), 'q-equation', 'stop' )
1777
1778	ENDIF
1779	!
1780	!-- If required, compute prognostic equation for scalar
1781	IF ( passive_scalar ) THEN
1782
1783	CALL cpu_log( log_point(66), 's-equation', 'start' )
1784
1785	!
1786	!-- Scalar/q-tendency terms with communication
1787	sbt = tsc(2)
1788	IF ( scalar_advec == 'bc-scheme' ) THEN
1789
1790	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
1791	!
1792	!-- Bott-Chlond scheme always uses Euler time step. Thus:
1793	sbt = 1.0_wp
1794	ENDIF
1795	tend = 0.0_wp
1796	CALL advec_s_bc( s, 's' )
1797
1798	ENDIF
1799
1800	!
1801	!-- Scalar/q-tendency terms with no communication
1802	IF ( scalar_advec /= 'bc-scheme' ) THEN
1803	tend = 0.0_wp
1804	IF ( timestep_scheme(1:5) == 'runge' ) THEN
1805	IF ( ws_scheme_sca ) THEN
1806	CALL advec_s_ws( s, 's' )
1807	ELSE
1808	CALL advec_s_pw( s )
1809	ENDIF
1810	ELSE
1811	CALL advec_s_up( s )
1812	ENDIF
1813	ENDIF
1814
1815	CALL diffusion_s( s, &
1816	surf_def_h(0)%ssws, surf_def_h(1)%ssws, &
1817	surf_def_h(2)%ssws, &
1818	surf_lsm_h%ssws, surf_usm_h%ssws, &
1819	surf_def_v(0)%ssws, surf_def_v(1)%ssws, &
1820	surf_def_v(2)%ssws, surf_def_v(3)%ssws, &
1821	surf_lsm_v(0)%ssws, surf_lsm_v(1)%ssws, &
1822	surf_lsm_v(2)%ssws, surf_lsm_v(3)%ssws, &
1823	surf_usm_v(0)%ssws, surf_usm_v(1)%ssws, &
1824	surf_usm_v(2)%ssws, surf_usm_v(3)%ssws )
1825
1826	!
1827	!-- Sink or source of humidity due to canopy elements
1828	IF ( plant_canopy ) CALL pcm_tendency( 7 )
1829
1830	!
1831	!-- Large scale advection. Not implemented for scalars so far.
1832	! IF ( large_scale_forcing ) THEN
1833	! CALL ls_advec( simulated_time, 'q' )
1834	! ENDIF
1835
1836	!
1837	!-- Nudging. Not implemented for scalars so far.
1838	! IF ( nudging ) CALL nudge( simulated_time, 'q' )
1839
1840	!
1841	!-- If required compute influence of large-scale subsidence/ascent.
1842	!-- Not implemented for scalars so far.
1843	IF ( large_scale_subsidence .AND. &
1844	.NOT. use_subsidence_tendencies .AND. &
1845	.NOT. large_scale_forcing ) THEN
1846	CALL subsidence( tend, s, s_init, 3 )
1847	ENDIF
1848
1849	CALL module_interface_actions( 's-tendency' )
1850
1851	!
1852	!-- Prognostic equation for total water content
1853	DO i = nxl, nxr
1854	DO j = nys, nyn
1855	DO k = nzb+1, nzt
1856	s_p(k,j,i) = s(k,j,i) + ( dt_3d * ( sbt * tend(k,j,i) + &
1857	tsc(3) * ts_m(k,j,i) ) &
1858	- tsc(5) * rdf_sc(k) * &
1859	( s(k,j,i) - s_init(k) ) &
1860	) &
1861	* MERGE( 1.0_wp, 0.0_wp, &
1862	BTEST( wall_flags_0(k,j,i), 0 ) &
1863	)
1864	IF ( s_p(k,j,i) < 0.0_wp ) s_p(k,j,i) = 0.1_wp * s(k,j,i)
1865	ENDDO
1866	ENDDO
1867	ENDDO
1868
1869	!
1870	!-- Calculate tendencies for the next Runge-Kutta step
1871	IF ( timestep_scheme(1:5) == 'runge' ) THEN
1872	IF ( intermediate_timestep_count == 1 ) THEN
1873	DO i = nxl, nxr
1874	DO j = nys, nyn
1875	DO k = nzb+1, nzt
1876	ts_m(k,j,i) = tend(k,j,i)
1877	ENDDO
1878	ENDDO
1879	ENDDO
1880	ELSEIF ( intermediate_timestep_count < &
1881	intermediate_timestep_count_max ) THEN
1882	DO i = nxl, nxr
1883	DO j = nys, nyn
1884	DO k = nzb+1, nzt
1885	ts_m(k,j,i) = -9.5625_wp * tend(k,j,i) &
1886	+ 5.3125_wp * ts_m(k,j,i)
1887	ENDDO
1888	ENDDO
1889	ENDDO
1890	ENDIF
1891	ENDIF
1892
1893	CALL cpu_log( log_point(66), 's-equation', 'stop' )
1894
1895	ENDIF
1896
1897	!
1898	!-- Calculate prognostic equations for turbulence closure
1899	CALL tcm_prognostic_equations()
1900	!
1901	!-- Calculate prognostic equations for all other modules
1902	CALL module_interface_prognostic_equations()
1903
1904	IF ( debug_output ) THEN
1905	WRITE( debug_string, * ) 'prognostic_equations_vector'
1906	CALL debug_message( debug_string, 'end' )
1907	ENDIF
1908
1909	END SUBROUTINE prognostic_equations_vector
1910
1911
1912	END MODULE prognostic_equations_mod

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