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source: palm/trunk/SOURCE/time_integration.f90 @ 4278

Last change on this file since 4278 was 4276, checked in by schwenkel, 4 years ago
modularize lpm code components of time integration
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File size: 67.8 KB

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1	!> @file time_integration.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: time_integration.f90 4276 2019-10-28 16:03:29Z scharf $
27	! Further modularization of lpm code components
28	!
29	! 4275 2019-10-28 15:34:55Z schwenkel
30	! Move call oft lpm to the end of intermediate timestep loop
31	!
32	! 4268 2019-10-17 11:29:38Z schwenkel
33	! Removing module specific boundary conditions an put them into their modules
34	!
35	! 4227 2019-09-10 18:04:34Z gronemeier
36	! implement new palm_date_time_mod
37	!
38	! 4226 2019-09-10 17:03:24Z suehring
39	! Changes in interface for the offline nesting
40	!
41	! 4182 2019-08-22 15:20:23Z scharf
42	! Corrected "Former revisions" section
43	!
44	! 4170 2019-08-19 17:12:31Z gronemeier
45	! copy diss, diss_p, tdiss_m to GPU
46	!
47	! 4144 2019-08-06 09:11:47Z raasch
48	! relational operators .EQ., .NE., etc. replaced by ==, /=, etc.
49	!
50	! 4126 2019-07-30 11:09:11Z gronemeier
51	! renamed routine to calculate uv exposure
52	!
53	! 4111 2019-07-22 18:16:57Z suehring
54	! advc_flags_1 / advc_flags_2 renamed to advc_flags_m / advc_flags_s
55	!
56	! 4069 2019-07-01 14:05:51Z Giersch
57	! Masked output running index mid has been introduced as a local variable to
58	! avoid runtime error (Loop variable has been modified) in time_integration
59	!
60	! 4064 2019-07-01 05:33:33Z gronemeier
61	! Moved call to radiation module out of intermediate time loop
62	!
63	! 4048 2019-06-21 21:00:21Z knoop
64	! Moved production_e_init call into turbulence_closure_mod
65	!
66	! 4047 2019-06-21 18:58:09Z knoop
67	! Added remainings of swap_timelevel upon its dissolution
68	!
69	! 4043 2019-06-18 16:59:00Z schwenkel
70	! Further LPM modularization
71	!
72	! 4039 2019-06-18 10:32:41Z suehring
73	! Rename subroutines in module for diagnostic quantities
74	!
75	! 4029 2019-06-14 14:04:35Z raasch
76	! exchange of ghost points and boundary conditions separated for chemical species and SALSA module,
77	! bugfix: decycling of chemistry species after nesting data transfer
78	!
79	! 4022 2019-06-12 11:52:39Z suehring
80	! Call synthetic turbulence generator at last RK3 substep right after boundary
81	! conditions are updated in offline nesting in order to assure that
82	! perturbations are always imposed
83	!
84	! 4017 2019-06-06 12:16:46Z schwenkel
85	! Mass (volume) flux correction included to ensure global mass conservation for child domains.
86	!
87	! 3994 2019-05-22 18:08:09Z suehring
88	! output of turbulence intensity added
89	!
90	! 3988 2019-05-22 11:32:37Z kanani
91	! Implement steerable output interval for virtual measurements
92	!
93	! 3968 2019-05-13 11:04:01Z suehring
94	! replace nspec_out with n_matched_vars
95	!
96	! 3929 2019-04-24 12:52:08Z banzhafs
97	! Reverse changes back from revision 3878: use chem_boundary_conds instead of
98	! chem_boundary_conds_decycle
99	!
100	!
101	! 3885 2019-04-11 11:29:34Z kanani
102	! Changes related to global restructuring of location messages and introduction
103	! of additional debug messages
104	!
105	! 3879 2019-04-08 20:25:23Z knoop
106	! Moved wtm_forces to module_interface_actions
107	!
108	! 3872 2019-04-08 15:03:06Z knoop
109	! Modifications made for salsa:
110	! - Call salsa_emission_update at each time step but do the checks within
111	! salsa_emission_update (i.e. skip_time_do_salsa >= time_since_reference_point
112	! and next_aero_emission_update <= time_since_reference_point ).
113	! - Renamed nbins --> nbins_aerosol, ncc_tot --> ncomponents_mass and
114	! ngast --> ngases_salsa and loop indices b, c and sg to ib, ic and ig
115	! - Apply nesting for salsa variables
116	! - Removed cpu_log calls speciffic for salsa.
117	!
118	! 3833 2019-03-28 15:04:04Z forkel
119	! added USE chem_gasphase_mod, replaced nspec by nspec since fixed compounds are not integrated
120	!
121	! 3820 2019-03-27 11:53:41Z forkel
122	! renamed do_emiss to emissions_anthropogenic (ecc)
123	!
124	!
125	! 3774 2019-03-04 10:52:49Z moh.hefny
126	! rephrase if statement to avoid unallocated array in case of
127	! nesting_offline is false (crashing during debug mode)
128	!
129	! 3761 2019-02-25 15:31:42Z raasch $
130	! module section re-formatted and openacc required variables moved to separate section,
131	! re-formatting to 100 char line width
132	!
133	! 3745 2019-02-15 18:57:56Z suehring
134	! Call indoor model after first timestep
135	!
136	! 3744 2019-02-15 18:38:58Z suehring
137	! - Moved call of bio_calculate_thermal_index_maps from biometeorology module to
138	! time_integration to make sure averaged input is updated before calculating.
139	!
140	! 3739 2019-02-13 08:05:17Z dom_dwd_user
141	! Removed everything related to "time_bio_results" as this is never used.
142	!
143	! 3724 2019-02-06 16:28:23Z kanani
144	! Correct double-used log_point_s unit
145	!
146	! 3719 2019-02-06 13:10:18Z kanani
147	! - removed wind_turbine cpu measurement, since same time is measured inside
148	! wtm_forces subroutine as special measures
149	! - moved the numerous vnest cpulog to special measures
150	! - extended radiation cpulog over entire radiation part,
151	! moved radiation_interactions cpulog to special measures
152	! - moved some cpu_log calls to this routine for better overview
153	!
154	! 3705 2019-01-29 19:56:39Z suehring
155	! Data output for virtual measurements added
156	!
157	! 3704 2019-01-29 19:51:41Z suehring
158	! Rename subroutines for surface-data output
159	!
160	! 3647 2019-01-02 14:10:44Z kanani
161	! Bugfix: add time_since_reference_point to IF clause for data_output calls
162	! (otherwise skip_time_* values don't come into affect with dt_do* = 0.0).
163	! Clean up indoor_model and biometeorology model call.
164	!
165	! Revision 1.1 1997/08/11 06:19:04 raasch
166	! Initial revision
167	!
168	!
169	! Description:
170	! ------------
171	!> Integration in time of the model equations, statistical analysis and graphic
172	!> output
173	!------------------------------------------------------------------------------!
174	SUBROUTINE time_integration
175
176
177	USE advec_ws, &
178	ONLY: ws_statistics
179
180	USE arrays_3d, &
181	ONLY: diss, diss_p, dzu, e, e_p, nc, nc_p, nr, nr_p, prho, pt, pt_p, pt_init, q_init, q, &
182	qc, qc_p, qr, qr_p, q_p, ref_state, rho_ocean, s, s_p, sa_p, &
183	tend, u, u_p, v, vpt, v_p, w, w_p
184
185	USE biometeorology_mod, &
186	ONLY: bio_calculate_thermal_index_maps, thermal_comfort, bio_calculate_uv_exposure, &
187	uv_exposure
188
189	USE bulk_cloud_model_mod, &
190	ONLY: bulk_cloud_model, calc_liquid_water_content, collision_turbulence, &
191	microphysics_morrison, microphysics_seifert
192
193	USE calc_mean_profile_mod, &
194	ONLY: calc_mean_profile
195
196	USE chem_emissions_mod, &
197	ONLY: chem_emissions_setup
198
199	USE chem_gasphase_mod, &
200	ONLY: nvar
201
202	USE chem_modules, &
203	ONLY: bc_cs_t_val, chem_species, cs_name, emissions_anthropogenic, n_matched_vars
204
205	USE chemistry_model_mod, &
206	ONLY: chem_boundary_conds
207
208	USE control_parameters, &
209	ONLY: advected_distance_x, advected_distance_y, air_chemistry, average_count_3d, &
210	averaging_interval, averaging_interval_pr, bc_lr_cyc, bc_ns_cyc, bc_pt_t_val, &
211	bc_q_t_val, biometeorology, call_psolver_at_all_substeps, child_domain, &
212	constant_flux_layer, constant_heatflux, create_disturbances, &
213	dopr_n, constant_diffusion, coupling_mode, coupling_start_time, &
214	current_timestep_number, disturbance_created, disturbance_energy_limit, dist_range, &
215	do_sum, dt_3d, dt_averaging_input, dt_averaging_input_pr, dt_coupling, &
216	dt_data_output_av, dt_disturb, dt_do2d_xy, dt_do2d_xz, dt_do2d_yz, dt_do3d, &
217	dt_domask,dt_dopts, dt_dopr, dt_dopr_listing, dt_dots, dt_run_control, &
218	end_time, first_call_lpm, first_call_mas, galilei_transformation, humidity, &
219	indoor_model, intermediate_timestep_count, intermediate_timestep_count_max, &
220	land_surface, large_scale_forcing, loop_optimization, lsf_surf, lsf_vert, masks, &
221	multi_agent_system_end, multi_agent_system_start, nesting_offline, neutral, &
222	nr_timesteps_this_run, nudging, ocean_mode, passive_scalar, pt_reference, &
223	pt_slope_offset, random_heatflux, rans_mode, rans_tke_e, run_coupled, salsa, &
224	simulated_time, simulated_time_chr, skip_time_do2d_xy, skip_time_do2d_xz, &
225	skip_time_do2d_yz, skip_time_do3d, skip_time_domask, skip_time_dopr, &
226	skip_time_data_output_av, sloping_surface, stop_dt, surface_output, &
227	terminate_coupled, terminate_run, timestep_scheme, time_coupling, time_do2d_xy, &
228	time_do2d_xz, time_do2d_yz, time_do3d, time_domask, time_dopr, time_dopr_av, &
229	time_dopr_listing, time_dopts, time_dosp, time_dosp_av, time_dots, time_do_av, &
230	time_do_sla, time_disturb, time_run_control, time_since_reference_point, &
231	turbulent_inflow, turbulent_outflow, urban_surface, &
232	use_initial_profile_as_reference, use_single_reference_value, u_gtrans, v_gtrans, &
233	virtual_flight, virtual_measurement, ws_scheme_mom, ws_scheme_sca, timestep_count
234
235	USE cpulog, &
236	ONLY: cpu_log, log_point, log_point_s
237
238	USE diagnostic_output_quantities_mod, &
239	ONLY: doq_calculate, &
240	timestep_number_at_prev_calc
241
242	USE flight_mod, &
243	ONLY: flight_measurement
244
245	USE indices, &
246	ONLY: nbgp, nx, nxl, nxlg, nxr, nxrg, nzb, nzt
247
248	USE indoor_model_mod, &
249	ONLY: dt_indoor, im_main_heatcool, time_indoor
250
251	USE interfaces
252
253	USE kinds
254
255	USE land_surface_model_mod, &
256	ONLY: lsm_boundary_condition, lsm_energy_balance, lsm_soil_model, skip_time_do_lsm
257
258	USE lagrangian_particle_model_mod, &
259	ONLY: lpm_data_output_ptseries
260
261	USE lsf_nudging_mod, &
262	ONLY: calc_tnudge, ls_forcing_surf, ls_forcing_vert, nudge_ref
263
264	USE module_interface, &
265	ONLY: module_interface_actions, module_interface_swap_timelevel, &
266	module_interface_boundary_conditions
267
268	USE multi_agent_system_mod, &
269	ONLY: agents_active, multi_agent_system
270
271	USE nesting_offl_mod, &
272	ONLY: nesting_offl_bc, &
273	nesting_offl_geostrophic_wind, &
274	nesting_offl_input, &
275	nesting_offl_interpolation_factor, &
276	nesting_offl_mass_conservation
277
278	USE netcdf_data_input_mod, &
279	ONLY: chem_emis, chem_emis_att
280
281	USE ocean_mod, &
282	ONLY: prho_reference
283
284	USE palm_date_time_mod, &
285	ONLY: get_date_time
286
287	USE particle_attributes, &
288	ONLY: particle_advection, particle_advection_start, use_sgs_for_particles, wang_kernel
289
290	USE pegrid
291
292	USE pmc_interface, &
293	ONLY: nested_run, nesting_mode, pmci_boundary_conds, pmci_datatrans, pmci_synchronize, &
294	pmci_ensure_nest_mass_conservation, pmci_ensure_nest_mass_conservation_vertical, &
295	pmci_set_swaplevel
296
297	USE progress_bar, &
298	ONLY: finish_progress_bar, output_progress_bar
299
300	USE prognostic_equations_mod, &
301	ONLY: prognostic_equations_cache, prognostic_equations_vector
302
303	USE radiation_model_mod, &
304	ONLY: dt_radiation, force_radiation_call, radiation, radiation_control, &
305	radiation_interaction, radiation_interactions, skip_time_do_radiation, time_radiation
306
307	USE salsa_mod, &
308	ONLY: aerosol_number, aerosol_mass, bc_am_t_val, bc_an_t_val, bc_gt_t_val, &
309	nbins_aerosol, ncomponents_mass, ngases_salsa, salsa_boundary_conds, &
310	salsa_emission_update, salsa_gas, salsa_gases_from_chem, skip_time_do_salsa
311
312	USE spectra_mod, &
313	ONLY: average_count_sp, averaging_interval_sp, calc_spectra, dt_dosp, skip_time_dosp
314
315	USE statistics, &
316	ONLY: flow_statistics_called, hom, pr_palm, sums_ls_l
317
318
319	USE surface_layer_fluxes_mod, &
320	ONLY: surface_layer_fluxes
321
322	USE surface_data_output_mod, &
323	ONLY: average_count_surf, averaging_interval_surf, dt_dosurf, dt_dosurf_av, &
324	surface_data_output, surface_data_output_averaging, skip_time_dosurf, &
325	skip_time_dosurf_av, time_dosurf, time_dosurf_av
326
327	USE surface_mod, &
328	ONLY: surf_def_h, surf_lsm_h, surf_usm_h
329
330	USE synthetic_turbulence_generator_mod, &
331	ONLY: dt_stg_call, dt_stg_adjust, parametrize_inflow_turbulence, stg_adjust, stg_main, &
332	time_stg_adjust, time_stg_call, use_syn_turb_gen
333
334	USE turbulence_closure_mod, &
335	ONLY: tcm_diffusivities
336
337	USE urban_surface_mod, &
338	ONLY: usm_boundary_condition, usm_material_heat_model, usm_material_model, &
339	usm_surface_energy_balance, usm_green_heat_model
340
341	USE vertical_nesting_mod, &
342	ONLY: vnested, vnest_anterpolate, vnest_anterpolate_e, vnest_boundary_conds, &
343	vnest_boundary_conds_khkm, vnest_deallocate, vnest_init, vnest_init_fine, &
344	vnest_start_time
345
346	USE virtual_measurement_mod, &
347	ONLY: dt_virtual_measurement, &
348	time_virtual_measurement, &
349	vm_data_output, &
350	vm_sampling, &
351	vm_time_start
352
353
354	#if defined( _OPENACC )
355	USE arrays_3d, &
356	ONLY: d, dd2zu, ddzu, ddzw, drho_air, drho_air_zw, dzw, heatflux_output_conversion, kh, &
357	km, momentumflux_output_conversion, p, ptdf_x, ptdf_y, rdf, rdf_sc, rho_air, &
358	rho_air_zw, tdiss_m, te_m, tpt_m, tu_m, tv_m, tw_m, ug, u_init, u_stokes_zu, vg, &
359	v_init, v_stokes_zu, zu
360
361	USE control_parameters, &
362	ONLY: tsc
363
364	USE indices, &
365	ONLY: advc_flags_m, advc_flags_s, nyn, nyng, nys, nysg, nz, nzb_max, wall_flags_0
366
367	USE statistics, &
368	ONLY: rmask, statistic_regions, sums_l, sums_l_l, sums_us2_ws_l, &
369	sums_wsus_ws_l, sums_vs2_ws_l, sums_wsvs_ws_l, sums_ws2_ws_l, sums_wspts_ws_l, &
370	sums_wsqs_ws_l, sums_wssas_ws_l, sums_wsqcs_ws_l, sums_wsqrs_ws_l, sums_wsncs_ws_l, &
371	sums_wsnrs_ws_l, sums_wsss_ws_l, weight_substep, sums_salsa_ws_l
372
373	USE surface_mod, &
374	ONLY: bc_h, enter_surface_arrays, exit_surface_arrays
375	#endif
376
377
378	IMPLICIT NONE
379
380	CHARACTER (LEN=9) :: time_to_string !<
381
382	INTEGER(iwp) :: hour !< hour of current time
383	INTEGER(iwp) :: hour_call_emis !< last hour where emission was called
384	INTEGER(iwp) :: ib !< index for aerosol size bins
385	INTEGER(iwp) :: ic !< index for aerosol mass bins
386	INTEGER(iwp) :: icc !< additional index for aerosol mass bins
387	INTEGER(iwp) :: ig !< index for salsa gases
388	INTEGER(iwp) :: lsp !<
389	INTEGER(iwp) :: lsp_usr !<
390	INTEGER(iwp) :: mid !< masked output running index
391	INTEGER(iwp) :: n !< loop counter for chemistry species
392
393	REAL(wp) :: dt_3d_old !< temporary storage of timestep to be used for
394	!< steering of run control output interval
395	REAL(wp) :: time_since_reference_point_save !< original value of
396	!< time_since_reference_point
397
398
399	!
400	!-- Copy data from arrays_3d
401	!$ACC DATA &
402	!$ACC COPY(d(nzb+1:nzt,nys:nyn,nxl:nxr)) &
403	!$ACC COPY(diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
404	!$ACC COPY(e(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
405	!$ACC COPY(u(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
406	!$ACC COPY(v(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
407	!$ACC COPY(w(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
408	!$ACC COPY(kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
409	!$ACC COPY(km(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
410	!$ACC COPY(p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
411	!$ACC COPY(pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
412
413	!$ACC DATA &
414	!$ACC COPY(diss_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
415	!$ACC COPY(e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
416	!$ACC COPY(u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
417	!$ACC COPY(v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
418	!$ACC COPY(w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
419	!$ACC COPY(pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
420	!$ACC COPY(tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
421	!$ACC COPY(tdiss_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
422	!$ACC COPY(te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
423	!$ACC COPY(tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
424	!$ACC COPY(tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
425	!$ACC COPY(tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
426	!$ACC COPY(tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
427
428	!$ACC DATA &
429	!$ACC COPYIN(rho_air(nzb:nzt+1), drho_air(nzb:nzt+1)) &
430	!$ACC COPYIN(rho_air_zw(nzb:nzt+1), drho_air_zw(nzb:nzt+1)) &
431	!$ACC COPYIN(zu(nzb:nzt+1)) &
432	!$ACC COPYIN(dzu(1:nzt+1), dzw(1:nzt+1)) &
433	!$ACC COPYIN(ddzu(1:nzt+1), dd2zu(1:nzt)) &
434	!$ACC COPYIN(ddzw(1:nzt+1)) &
435	!$ACC COPYIN(heatflux_output_conversion(nzb:nzt+1)) &
436	!$ACC COPYIN(momentumflux_output_conversion(nzb:nzt+1)) &
437	!$ACC COPYIN(rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt)) &
438	!$ACC COPYIN(ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng)) &
439	!$ACC COPYIN(ref_state(0:nz+1)) &
440	!$ACC COPYIN(u_init(0:nz+1), v_init(0:nz+1)) &
441	!$ACC COPYIN(u_stokes_zu(nzb:nzt+1), v_stokes_zu(nzb:nzt+1)) &
442	!$ACC COPYIN(pt_init(0:nz+1)) &
443	!$ACC COPYIN(ug(0:nz+1), vg(0:nz+1))
444
445	!
446	!-- Copy data from control_parameters
447	!$ACC DATA &
448	!$ACC COPYIN(tsc(1:5))
449
450	!
451	!-- Copy data from indices
452	!$ACC DATA &
453	!$ACC COPYIN(advc_flags_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
454	!$ACC COPYIN(advc_flags_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
455	!$ACC COPYIN(wall_flags_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
456
457	!
458	!-- Copy data from surface_mod
459	!$ACC DATA &
460	!$ACC COPYIN(bc_h(0:1)) &
461	!$ACC COPYIN(bc_h(0)%i(1:bc_h(0)%ns)) &
462	!$ACC COPYIN(bc_h(0)%j(1:bc_h(0)%ns)) &
463	!$ACC COPYIN(bc_h(0)%k(1:bc_h(0)%ns)) &
464	!$ACC COPYIN(bc_h(1)%i(1:bc_h(1)%ns)) &
465	!$ACC COPYIN(bc_h(1)%j(1:bc_h(1)%ns)) &
466	!$ACC COPYIN(bc_h(1)%k(1:bc_h(1)%ns))
467
468	!
469	!-- Copy data from statistics
470	!$ACC DATA &
471	!$ACC COPYIN(hom(0:nz+1,1:2,1:4,0)) &
472	!$ACC COPYIN(rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions)) &
473	!$ACC COPYIN(weight_substep(1:intermediate_timestep_count_max)) &
474	!$ACC COPY(sums_l(nzb:nzt+1,1:pr_palm,0)) &
475	!$ACC COPY(sums_l_l(nzb:nzt+1,0:statistic_regions,0)) &
476	!$ACC COPY(sums_us2_ws_l(nzb:nzt+1,0)) &
477	!$ACC COPY(sums_wsus_ws_l(nzb:nzt+1,0)) &
478	!$ACC COPY(sums_vs2_ws_l(nzb:nzt+1,0)) &
479	!$ACC COPY(sums_wsvs_ws_l(nzb:nzt+1,0)) &
480	!$ACC COPY(sums_ws2_ws_l(nzb:nzt+1,0)) &
481	!$ACC COPY(sums_wspts_ws_l(nzb:nzt+1,0)) &
482	!$ACC COPY(sums_wssas_ws_l(nzb:nzt+1,0)) &
483	!$ACC COPY(sums_wsqs_ws_l(nzb:nzt+1,0)) &
484	!$ACC COPY(sums_wsqcs_ws_l(nzb:nzt+1,0)) &
485	!$ACC COPY(sums_wsqrs_ws_l(nzb:nzt+1,0)) &
486	!$ACC COPY(sums_wsncs_ws_l(nzb:nzt+1,0)) &
487	!$ACC COPY(sums_wsnrs_ws_l(nzb:nzt+1,0)) &
488	!$ACC COPY(sums_wsss_ws_l(nzb:nzt+1,0)) &
489	!$ACC COPY(sums_salsa_ws_l(nzb:nzt+1,0))
490
491	#if defined( _OPENACC )
492	CALL enter_surface_arrays
493	#endif
494
495	!
496	!-- At beginning determine the first time step
497	CALL timestep
498	!
499	!-- Synchronize the timestep in case of nested run.
500	IF ( nested_run ) THEN
501	!
502	!-- Synchronization by unifying the time step.
503	!-- Global minimum of all time-steps is used for all.
504	CALL pmci_synchronize
505	ENDIF
506
507	!
508	!-- Determine and print out the run control quantities before the first time
509	!-- step of this run. For the initial run, some statistics (e.g. divergence)
510	!-- need to be determined first --> CALL flow_statistics at the beginning of
511	!-- run_control
512	CALL run_control
513	!
514	!-- Data exchange between coupled models in case that a call has been omitted
515	!-- at the end of the previous run of a job chain.
516	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled .AND. .NOT. vnested ) THEN
517	!
518	!-- In case of model termination initiated by the local model the coupler
519	!-- must not be called because this would again cause an MPI hang.
520	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
521	CALL surface_coupler
522	time_coupling = time_coupling - dt_coupling
523	ENDDO
524	IF (time_coupling == 0.0_wp .AND. time_since_reference_point < dt_coupling ) THEN
525	time_coupling = time_since_reference_point
526	ENDIF
527	ENDIF
528
529	CALL location_message( 'atmosphere (and/or ocean) time-stepping', 'start' )
530
531	!
532	!-- Start of the time loop
533	DO WHILE ( simulated_time < end_time .AND. .NOT. stop_dt .AND. .NOT. terminate_run )
534
535	CALL cpu_log( log_point_s(10), 'timesteps', 'start' )
536	!
537	!-- Vertical nesting: initialize fine grid
538	IF ( vnested ) THEN
539	IF ( .NOT. vnest_init .AND. simulated_time >= vnest_start_time ) THEN
540	CALL cpu_log( log_point_s(22), 'vnest_init', 'start' )
541	CALL vnest_init_fine
542	vnest_init = .TRUE.
543	CALL cpu_log( log_point_s(22), 'vnest_init', 'stop' )
544	ENDIF
545	ENDIF
546	!
547	!-- Determine ug, vg and w_subs in dependence on data from external file
548	!-- LSF_DATA
549	IF ( large_scale_forcing .AND. lsf_vert ) THEN
550	CALL ls_forcing_vert ( simulated_time )
551	sums_ls_l = 0.0_wp
552	ENDIF
553
554	!
555	!-- Set pt_init and q_init to the current profiles taken from
556	!-- NUDGING_DATA
557	IF ( nudging ) THEN
558	CALL nudge_ref ( simulated_time )
559	!
560	!-- Store temperature gradient at the top boundary for possible Neumann
561	!-- boundary condition
562	bc_pt_t_val = ( pt_init(nzt+1) - pt_init(nzt) ) / dzu(nzt+1)
563	bc_q_t_val = ( q_init(nzt+1) - q_init(nzt) ) / dzu(nzt+1)
564	IF ( air_chemistry ) THEN
565	DO lsp = 1, nvar
566	bc_cs_t_val = ( chem_species(lsp)%conc_pr_init(nzt+1) &
567	- chem_species(lsp)%conc_pr_init(nzt) ) &
568	/ dzu(nzt+1)
569	ENDDO
570	ENDIF
571	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
572	DO ib = 1, nbins_aerosol
573	bc_an_t_val = ( aerosol_number(ib)%init(nzt+1) - aerosol_number(ib)%init(nzt) ) / &
574	dzu(nzt+1)
575	DO ic = 1, ncomponents_mass
576	icc = ( ic - 1 ) * nbins_aerosol + ib
577	bc_am_t_val = ( aerosol_mass(icc)%init(nzt+1) - aerosol_mass(icc)%init(nzt) ) /&
578	dzu(nzt+1)
579	ENDDO
580	ENDDO
581	IF ( .NOT. salsa_gases_from_chem ) THEN
582	DO ig = 1, ngases_salsa
583	bc_gt_t_val = ( salsa_gas(ig)%init(nzt+1) - salsa_gas(ig)%init(nzt) ) / &
584	dzu(nzt+1)
585	ENDDO
586	ENDIF
587	ENDIF
588	ENDIF
589	!
590	!-- Input of boundary data.
591	IF ( nesting_offline ) CALL nesting_offl_input
592	!
593	!-- Execute all other module actions routines
594	CALL module_interface_actions( 'before_timestep' )
595
596	!
597	!-- Start of intermediate step loop
598	intermediate_timestep_count = 0
599	DO WHILE ( intermediate_timestep_count < intermediate_timestep_count_max )
600
601	intermediate_timestep_count = intermediate_timestep_count + 1
602
603	!
604	!-- Set the steering factors for the prognostic equations which depend
605	!-- on the timestep scheme
606	CALL timestep_scheme_steering
607
608	!
609	!-- Calculate those variables needed in the tendency terms which need
610	!-- global communication
611	IF ( .NOT. use_single_reference_value .AND. .NOT. use_initial_profile_as_reference ) &
612	THEN
613	!
614	!-- Horizontally averaged profiles to be used as reference state in
615	!-- buoyancy terms (WARNING: only the respective last call of
616	!-- calc_mean_profile defines the reference state!)
617	IF ( .NOT. neutral ) THEN
618	CALL calc_mean_profile( pt, 4 )
619	ref_state(:) = hom(:,1,4,0) ! this is used in the buoyancy term
620	ENDIF
621	IF ( ocean_mode ) THEN
622	CALL calc_mean_profile( rho_ocean, 64 )
623	ref_state(:) = hom(:,1,64,0)
624	ENDIF
625	IF ( humidity ) THEN
626	CALL calc_mean_profile( vpt, 44 )
627	ref_state(:) = hom(:,1,44,0)
628	ENDIF
629	!
630	!-- Assure that ref_state does not become zero at any level
631	!-- ( might be the case if a vertical level is completely occupied
632	!-- with topography ).
633	ref_state = MERGE( MAXVAL(ref_state), ref_state, ref_state == 0.0_wp )
634	ENDIF
635
636	IF ( ( ws_scheme_mom .OR. ws_scheme_sca ) .AND. intermediate_timestep_count == 1 ) &
637	THEN
638	CALL ws_statistics
639	ENDIF
640	!
641	!-- In case of nudging calculate current nudging time scale and horizontal
642	!-- means of u, v, pt and q
643	IF ( nudging ) THEN
644	CALL calc_tnudge( simulated_time )
645	CALL calc_mean_profile( u, 1 )
646	CALL calc_mean_profile( v, 2 )
647	CALL calc_mean_profile( pt, 4 )
648	CALL calc_mean_profile( q, 41 )
649	ENDIF
650	!
651	!-- Execute all other module actions routunes
652	CALL module_interface_actions( 'before_prognostic_equations' )
653	!
654	!-- Solve the prognostic equations. A fast cache optimized version with
655	!-- only one single loop is used in case of Piascek-Williams advection
656	!-- scheme. NEC vector machines use a different version, because
657	!-- in the other versions a good vectorization is prohibited due to
658	!-- inlining problems.
659	IF ( loop_optimization == 'cache' ) THEN
660	CALL prognostic_equations_cache
661	ELSEIF ( loop_optimization == 'vector' ) THEN
662	CALL prognostic_equations_vector
663	ENDIF
664	!
665	!-- Movement of agents in multi agent system
666	IF ( agents_active .AND. time_since_reference_point >= multi_agent_system_start .AND. &
667	time_since_reference_point <= multi_agent_system_end .AND. &
668	intermediate_timestep_count == 1 ) &
669	THEN
670	CALL multi_agent_system
671	first_call_mas = .FALSE.
672	ENDIF
673
674	!
675	!-- Exchange of ghost points (lateral boundary conditions)
676	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'start' )
677
678	CALL exchange_horiz( u_p, nbgp )
679	CALL exchange_horiz( v_p, nbgp )
680	CALL exchange_horiz( w_p, nbgp )
681	CALL exchange_horiz( pt_p, nbgp )
682	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
683	IF ( rans_tke_e .OR. wang_kernel .OR. collision_turbulence &
684	.OR. use_sgs_for_particles ) THEN
685	IF ( rans_tke_e ) THEN
686	CALL exchange_horiz( diss_p, nbgp )
687	ELSE
688	CALL exchange_horiz( diss, nbgp )
689	ENDIF
690	ENDIF
691	IF ( ocean_mode ) THEN
692	CALL exchange_horiz( sa_p, nbgp )
693	CALL exchange_horiz( rho_ocean, nbgp )
694	CALL exchange_horiz( prho, nbgp )
695	ENDIF
696	IF ( humidity ) THEN
697	CALL exchange_horiz( q_p, nbgp )
698	IF ( bulk_cloud_model .AND. microphysics_morrison ) THEN
699	CALL exchange_horiz( qc_p, nbgp )
700	CALL exchange_horiz( nc_p, nbgp )
701	ENDIF
702	IF ( bulk_cloud_model .AND. microphysics_seifert ) THEN
703	CALL exchange_horiz( qr_p, nbgp )
704	CALL exchange_horiz( nr_p, nbgp )
705	ENDIF
706	ENDIF
707	IF ( passive_scalar ) CALL exchange_horiz( s_p, nbgp )
708	IF ( air_chemistry ) THEN
709	DO lsp = 1, nvar
710	CALL exchange_horiz( chem_species(lsp)%conc_p, nbgp )
711	ENDDO
712	ENDIF
713
714	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
715	DO ib = 1, nbins_aerosol
716	CALL exchange_horiz( aerosol_number(ib)%conc_p, nbgp )
717	DO ic = 1, ncomponents_mass
718	icc = ( ic - 1 ) * nbins_aerosol + ib
719	CALL exchange_horiz( aerosol_mass(icc)%conc_p, nbgp )
720	ENDDO
721	ENDDO
722	IF ( .NOT. salsa_gases_from_chem ) THEN
723	DO ig = 1, ngases_salsa
724	CALL exchange_horiz( salsa_gas(ig)%conc_p, nbgp )
725	ENDDO
726	ENDIF
727	ENDIF
728	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'stop' )
729
730	!
731	!-- Boundary conditions for the prognostic quantities (except of the
732	!-- velocities at the outflow in case of a non-cyclic lateral wall)
733	CALL boundary_conds
734	!
735	!-- Boundary conditions for module-specific variables
736	CALL module_interface_boundary_conditions
737	!
738	!-- Incrementing timestep counter
739	timestep_count = timestep_count + 1
740
741	CALL cpu_log( log_point(28), 'swap_timelevel', 'start' )
742	!
743	!-- Set the swap level for all modules
744	CALL module_interface_swap_timelevel( MOD( timestep_count, 2) )
745	!
746	!-- Set the swap level for steering the pmc data transfer
747	IF ( nested_run ) CALL pmci_set_swaplevel( MOD( timestep_count, 2) + 1 ) !> @todo: why the +1 ?
748
749	CALL cpu_log( log_point(28), 'swap_timelevel', 'stop' )
750
751	!
752	!-- Vertical nesting: Interpolate fine grid data to the coarse grid
753	IF ( vnest_init ) THEN
754	CALL cpu_log( log_point_s(37), 'vnest_anterpolate', 'start' )
755	CALL vnest_anterpolate
756	CALL cpu_log( log_point_s(37), 'vnest_anterpolate', 'stop' )
757	ENDIF
758
759	IF ( nested_run ) THEN
760
761	CALL cpu_log( log_point(60), 'nesting', 'start' )
762	!
763	!-- Domain nesting. The data transfer subroutines pmci_parent_datatrans
764	!-- and pmci_child_datatrans are called inside the wrapper
765	!-- subroutine pmci_datatrans according to the control parameters
766	!-- nesting_mode and nesting_datatransfer_mode.
767	!-- TO_DO: why is nesting_mode given as a parameter here?
768	CALL pmci_datatrans( nesting_mode )
769
770	IF ( TRIM( nesting_mode ) == 'two-way' .OR. nesting_mode == 'vertical' ) THEN
771
772	CALL cpu_log( log_point_s(92), 'exchange-horiz-nest', 'start' )
773	!
774	!-- Exchange_horiz is needed for all parent-domains after the
775	!-- anterpolation
776	CALL exchange_horiz( u, nbgp )
777	CALL exchange_horiz( v, nbgp )
778	CALL exchange_horiz( w, nbgp )
779	IF ( .NOT. neutral ) CALL exchange_horiz( pt, nbgp )
780
781	IF ( humidity ) THEN
782
783	CALL exchange_horiz( q, nbgp )
784
785	IF ( bulk_cloud_model .AND. microphysics_morrison ) THEN
786	CALL exchange_horiz( qc, nbgp )
787	CALL exchange_horiz( nc, nbgp )
788	ENDIF
789	IF ( bulk_cloud_model .AND. microphysics_seifert ) THEN
790	CALL exchange_horiz( qr, nbgp )
791	CALL exchange_horiz( nr, nbgp )
792	ENDIF
793
794	ENDIF
795
796	IF ( passive_scalar ) CALL exchange_horiz( s, nbgp )
797
798	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e, nbgp )
799
800	IF ( .NOT. constant_diffusion .AND. rans_mode .AND. rans_tke_e ) THEN
801	CALL exchange_horiz( diss, nbgp )
802	ENDIF
803
804	IF ( air_chemistry ) THEN
805	DO n = 1, nvar
806	CALL exchange_horiz( chem_species(n)%conc, nbgp )
807	ENDDO
808	ENDIF
809
810	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
811	DO ib = 1, nbins_aerosol
812	CALL exchange_horiz( aerosol_number(ib)%conc, nbgp )
813	DO ic = 1, ncomponents_mass
814	icc = ( ic - 1 ) * nbins_aerosol + ib
815	CALL exchange_horiz( aerosol_mass(icc)%conc, nbgp )
816	ENDDO
817	ENDDO
818	IF ( .NOT. salsa_gases_from_chem ) THEN
819	DO ig = 1, ngases_salsa
820	CALL exchange_horiz( salsa_gas(ig)%conc, nbgp )
821	ENDDO
822	ENDIF
823	ENDIF
824	CALL cpu_log( log_point_s(92), 'exchange-horiz-nest', 'stop' )
825
826	ENDIF
827
828	!
829	!-- Set boundary conditions again after interpolation and anterpolation.
830	CALL pmci_boundary_conds
831
832	!
833	!-- Set chemistry boundary conditions (decycling)
834	IF ( air_chemistry ) THEN
835	DO lsp = 1, nvar
836	lsp_usr = 1
837	DO WHILE ( TRIM( cs_name( lsp_usr ) ) /= 'novalue' )
838	IF ( TRIM( chem_species(lsp)%name ) == TRIM( cs_name(lsp_usr) ) ) THEN
839	CALL chem_boundary_conds( chem_species(lsp)%conc, &
840	chem_species(lsp)%conc_pr_init )
841	ENDIF
842	lsp_usr = lsp_usr + 1
843	ENDDO
844	ENDDO
845	ENDIF
846
847	!
848	!-- Set SALSA boundary conditions (decycling)
849	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
850	DO ib = 1, nbins_aerosol
851	CALL salsa_boundary_conds( aerosol_number(ib)%conc, aerosol_number(ib)%init )
852	DO ic = 1, ncomponents_mass
853	icc = ( ic - 1 ) * nbins_aerosol + ib
854	CALL salsa_boundary_conds( aerosol_mass(icc)%conc, aerosol_mass(icc)%init )
855	ENDDO
856	ENDDO
857	IF ( .NOT. salsa_gases_from_chem ) THEN
858	DO ig = 1, ngases_salsa
859	CALL salsa_boundary_conds( salsa_gas(ig)%conc, salsa_gas(ig)%init )
860	ENDDO
861	ENDIF
862	ENDIF
863
864	CALL cpu_log( log_point(60), 'nesting', 'stop' )
865
866	ENDIF
867
868	!
869	!-- Temperature offset must be imposed at cyclic boundaries in x-direction
870	!-- when a sloping surface is used
871	IF ( sloping_surface ) THEN
872	IF ( nxl == 0 ) pt(:,:,nxlg:nxl-1) = pt(:,:,nxlg:nxl-1) - pt_slope_offset
873	IF ( nxr == nx ) pt(:,:,nxr+1:nxrg) = pt(:,:,nxr+1:nxrg) + pt_slope_offset
874	ENDIF
875
876	!
877	!-- Impose a turbulent inflow using the recycling method
878	IF ( turbulent_inflow ) CALL inflow_turbulence
879
880	!
881	!-- Set values at outflow boundary using the special outflow condition
882	IF ( turbulent_outflow ) CALL outflow_turbulence
883
884	!
885	!-- Impose a random perturbation on the horizontal velocity field
886	IF ( create_disturbances .AND. ( call_psolver_at_all_substeps .AND. &
887	intermediate_timestep_count == intermediate_timestep_count_max ) &
888	.OR. ( .NOT. call_psolver_at_all_substeps .AND. intermediate_timestep_count == 1 ) ) &
889	THEN
890	time_disturb = time_disturb + dt_3d
891	IF ( time_disturb >= dt_disturb ) THEN
892	IF ( disturbance_energy_limit /= 0.0_wp .AND. &
893	hom(nzb+5,1,pr_palm,0) < disturbance_energy_limit ) THEN
894	CALL disturb_field( 'u', tend, u )
895	CALL disturb_field( 'v', tend, v )
896	ELSEIF ( ( .NOT. bc_lr_cyc .OR. .NOT. bc_ns_cyc ) &
897	.AND. .NOT. child_domain .AND. .NOT. nesting_offline ) &
898	THEN
899	!
900	!-- Runs with a non-cyclic lateral wall need perturbations
901	!-- near the inflow throughout the whole simulation
902	dist_range = 1
903	CALL disturb_field( 'u', tend, u )
904	CALL disturb_field( 'v', tend, v )
905	dist_range = 0
906	ENDIF
907	time_disturb = time_disturb - dt_disturb
908	ENDIF
909	ENDIF
910
911	!
912	!-- Map forcing data derived from larger scale model onto domain
913	!-- boundaries. Further, update geostrophic wind components.
914	IF ( nesting_offline .AND. intermediate_timestep_count == &
915	intermediate_timestep_count_max ) THEN
916	!-- Determine interpolation factor before boundary conditions and geostrophic wind
917	!-- is updated.
918	CALL nesting_offl_interpolation_factor
919	CALL nesting_offl_bc
920	CALL nesting_offl_geostrophic_wind
921	ENDIF
922	!
923	!-- Impose a turbulent inflow using synthetic generated turbulence.
924	IF ( use_syn_turb_gen .AND. &
925	intermediate_timestep_count == intermediate_timestep_count_max ) THEN
926	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'start' )
927	CALL stg_main
928	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'stop' )
929	ENDIF
930	!
931	!-- Ensure mass conservation. This need to be done after imposing
932	!-- synthetic turbulence and top boundary condition for pressure is set to
933	!-- Neumann conditions.
934	!-- Is this also required in case of Dirichlet?
935	IF ( nesting_offline ) CALL nesting_offl_mass_conservation
936	!
937	!-- Reduce the velocity divergence via the equation for perturbation
938	!-- pressure.
939	IF ( intermediate_timestep_count == 1 .OR. &
940	call_psolver_at_all_substeps ) THEN
941
942	IF ( vnest_init ) THEN
943	!
944	!-- Compute pressure in the CG, interpolate top boundary conditions
945	!-- to the FG and then compute pressure in the FG
946	IF ( coupling_mode == 'vnested_crse' ) CALL pres
947
948	CALL cpu_log( log_point_s(30), 'vnest_bc', 'start' )
949	CALL vnest_boundary_conds
950	CALL cpu_log( log_point_s(30), 'vnest_bc', 'stop' )
951
952	IF ( coupling_mode == 'vnested_fine' ) CALL pres
953
954	!-- Anterpolate TKE, satisfy Germano Identity
955	CALL cpu_log( log_point_s(28), 'vnest_anter_e', 'start' )
956	CALL vnest_anterpolate_e
957	CALL cpu_log( log_point_s(28), 'vnest_anter_e', 'stop' )
958
959	ELSE
960	!
961	!-- Mass (volume) flux correction to ensure global mass conservation for child domains.
962	IF ( child_domain ) THEN
963	IF ( nesting_mode == 'vertical' ) THEN
964	CALL pmci_ensure_nest_mass_conservation_vertical
965	ELSE
966	CALL pmci_ensure_nest_mass_conservation
967	ENDIF
968	ENDIF
969
970	CALL pres
971
972	ENDIF
973
974	ENDIF
975	!
976	!-- Particle transport/physics with the Lagrangian particle model
977	!-- (only once during intermediate steps, because it uses an Euler-step)
978	!-- ### particle model should be moved before prognostic_equations, in order
979	!-- to regard droplet interactions directly
980
981	CALL module_interface_actions( 'after_pressure_solver' )
982	!
983	!-- Interaction of droplets with temperature and mixing ratio.
984	!-- Droplet condensation and evaporation is calculated within
985	!-- advec_particles.
986	!
987	!-- If required, compute liquid water content
988	IF ( bulk_cloud_model ) THEN
989	CALL calc_liquid_water_content
990	ENDIF
991	!
992	!-- If required, compute virtual potential temperature
993	IF ( humidity ) THEN
994	CALL compute_vpt
995	ENDIF
996
997	!
998	!-- Compute the diffusion quantities
999	IF ( .NOT. constant_diffusion ) THEN
1000
1001	!
1002	!-- Determine surface fluxes shf and qsws and surface values
1003	!-- pt_surface and q_surface in dependence on data from external
1004	!-- file LSF_DATA respectively
1005	IF ( ( large_scale_forcing .AND. lsf_surf ) .AND. &
1006	intermediate_timestep_count == intermediate_timestep_count_max ) &
1007	THEN
1008	CALL ls_forcing_surf( simulated_time )
1009	ENDIF
1010
1011	!
1012	!-- First the vertical (and horizontal) fluxes in the surface
1013	!-- (constant flux) layer are computed
1014	IF ( constant_flux_layer ) THEN
1015	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'start' )
1016	CALL surface_layer_fluxes
1017	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'stop' )
1018	ENDIF
1019	!
1020	!-- If required, solve the energy balance for the surface and run soil
1021	!-- model. Call for horizontal as well as vertical surfaces
1022	IF ( land_surface .AND. time_since_reference_point >= skip_time_do_lsm) THEN
1023
1024	CALL cpu_log( log_point(54), 'land_surface', 'start' )
1025	!
1026	!-- Call for horizontal upward-facing surfaces
1027	CALL lsm_energy_balance( .TRUE., -1 )
1028	CALL lsm_soil_model( .TRUE., -1, .TRUE. )
1029	!
1030	!-- Call for northward-facing surfaces
1031	CALL lsm_energy_balance( .FALSE., 0 )
1032	CALL lsm_soil_model( .FALSE., 0, .TRUE. )
1033	!
1034	!-- Call for southward-facing surfaces
1035	CALL lsm_energy_balance( .FALSE., 1 )
1036	CALL lsm_soil_model( .FALSE., 1, .TRUE. )
1037	!
1038	!-- Call for eastward-facing surfaces
1039	CALL lsm_energy_balance( .FALSE., 2 )
1040	CALL lsm_soil_model( .FALSE., 2, .TRUE. )
1041	!
1042	!-- Call for westward-facing surfaces
1043	CALL lsm_energy_balance( .FALSE., 3 )
1044	CALL lsm_soil_model( .FALSE., 3, .TRUE. )
1045
1046	!
1047	!-- At the end, set boundary conditons for potential temperature
1048	!-- and humidity after running the land-surface model. This
1049	!-- might be important for the nesting, where arrays are transfered.
1050	CALL lsm_boundary_condition
1051
1052
1053	CALL cpu_log( log_point(54), 'land_surface', 'stop' )
1054	ENDIF
1055	!
1056	!-- If required, solve the energy balance for urban surfaces and run
1057	!-- the material heat model
1058	IF (urban_surface) THEN
1059	CALL cpu_log( log_point(74), 'urban_surface', 'start' )
1060
1061	CALL usm_surface_energy_balance( .FALSE. )
1062	IF ( usm_material_model ) THEN
1063	CALL usm_green_heat_model
1064	CALL usm_material_heat_model ( .FALSE. )
1065	ENDIF
1066
1067	!
1068	!-- At the end, set boundary conditons for potential temperature
1069	!-- and humidity after running the urban-surface model. This
1070	!-- might be important for the nesting, where arrays are transfered.
1071	CALL usm_boundary_condition
1072
1073	CALL cpu_log( log_point(74), 'urban_surface', 'stop' )
1074	ENDIF
1075	!
1076	!-- Compute the diffusion coefficients
1077	CALL cpu_log( log_point(17), 'diffusivities', 'start' )
1078	IF ( .NOT. humidity ) THEN
1079	IF ( ocean_mode ) THEN
1080	CALL tcm_diffusivities( prho, prho_reference )
1081	ELSE
1082	CALL tcm_diffusivities( pt, pt_reference )
1083	ENDIF
1084	ELSE
1085	CALL tcm_diffusivities( vpt, pt_reference )
1086	ENDIF
1087	CALL cpu_log( log_point(17), 'diffusivities', 'stop' )
1088	!
1089	!-- Vertical nesting: set fine grid eddy viscosity top boundary condition
1090	IF ( vnest_init ) CALL vnest_boundary_conds_khkm
1091
1092	ENDIF
1093
1094	ENDDO ! Intermediate step loop
1095
1096	!
1097	!-- Will be used at some point by flow_statistics.
1098	!$ACC UPDATE &
1099	!$ACC HOST(sums_l_l(nzb:nzt+1,0:statistic_regions,0)) &
1100	!$ACC HOST(sums_us2_ws_l(nzb:nzt+1,0)) &
1101	!$ACC HOST(sums_wsus_ws_l(nzb:nzt+1,0)) &
1102	!$ACC HOST(sums_vs2_ws_l(nzb:nzt+1,0)) &
1103	!$ACC HOST(sums_wsvs_ws_l(nzb:nzt+1,0)) &
1104	!$ACC HOST(sums_ws2_ws_l(nzb:nzt+1,0)) &
1105	!$ACC HOST(sums_wspts_ws_l(nzb:nzt+1,0)) &
1106	!$ACC HOST(sums_wssas_ws_l(nzb:nzt+1,0)) &
1107	!$ACC HOST(sums_wsqs_ws_l(nzb:nzt+1,0)) &
1108	!$ACC HOST(sums_wsqcs_ws_l(nzb:nzt+1,0)) &
1109	!$ACC HOST(sums_wsqrs_ws_l(nzb:nzt+1,0)) &
1110	!$ACC HOST(sums_wsncs_ws_l(nzb:nzt+1,0)) &
1111	!$ACC HOST(sums_wsnrs_ws_l(nzb:nzt+1,0)) &
1112	!$ACC HOST(sums_wsss_ws_l(nzb:nzt+1,0)) &
1113	!$ACC HOST(sums_salsa_ws_l(nzb:nzt+1,0))
1114
1115	!
1116	!-- If required, calculate radiative fluxes and heating rates
1117	IF ( radiation .AND. time_since_reference_point > skip_time_do_radiation ) THEN
1118
1119	time_radiation = time_radiation + dt_3d
1120
1121	IF ( time_radiation >= dt_radiation .OR. force_radiation_call ) THEN
1122
1123	CALL cpu_log( log_point(50), 'radiation', 'start' )
1124
1125	IF ( .NOT. force_radiation_call ) THEN
1126	time_radiation = time_radiation - dt_radiation
1127	ENDIF
1128
1129	!
1130	!-- Adjust the current time to the time step of the radiation model.
1131	!-- Needed since radiation is pre-calculated and stored only on apparent
1132	!-- solar positions
1133	time_since_reference_point_save = time_since_reference_point
1134	time_since_reference_point = REAL( FLOOR( time_since_reference_point / &
1135	dt_radiation ), wp ) * dt_radiation
1136
1137	CALL radiation_control
1138
1139	IF ( ( urban_surface .OR. land_surface ) .AND. radiation_interactions ) THEN
1140	CALL cpu_log( log_point_s(46), 'radiation_interaction', 'start' )
1141	CALL radiation_interaction
1142	CALL cpu_log( log_point_s(46), 'radiation_interaction', 'stop' )
1143	ENDIF
1144
1145	!
1146	!-- Return the current time to its original value
1147	time_since_reference_point = time_since_reference_point_save
1148
1149	CALL cpu_log( log_point(50), 'radiation', 'stop' )
1150
1151	ENDIF
1152	ENDIF
1153
1154	!
1155	!-- If required, consider chemical emissions
1156	IF ( air_chemistry .AND. emissions_anthropogenic ) THEN
1157	!
1158	!-- Call emission routine only once an hour
1159	!> @todo Move check of hour_call_emis into chem_emissions_setup
1160	CALL get_date_time( time_since_reference_point, hour=hour )
1161	IF ( hour_call_emis /= hour ) THEN
1162	!> @question Which of these two if-statements is correct?
1163	! IF ( hour_of_year > hour_call_emis ) THEN
1164	CALL chem_emissions_setup( chem_emis_att, chem_emis, n_matched_vars )
1165	hour_call_emis = hour
1166	ENDIF
1167	ENDIF
1168	!
1169	!-- If required, consider aerosol emissions for the salsa model
1170	IF ( salsa ) THEN
1171	!
1172	!-- Call emission routine to update emissions if needed
1173	CALL salsa_emission_update
1174
1175	ENDIF
1176	!
1177	!-- If required, calculate indoor temperature, waste heat, heat flux
1178	!-- through wall, etc.
1179	!-- dt_indoor steers the frequency of the indoor model calculations.
1180	!-- Note, at first timestep indoor model is called, in order to provide
1181	!-- a waste heat flux.
1182	IF ( indoor_model ) THEN
1183
1184	time_indoor = time_indoor + dt_3d
1185
1186	IF ( time_indoor >= dt_indoor .OR. current_timestep_number == 0 ) THEN
1187
1188	time_indoor = time_indoor - dt_indoor
1189
1190	CALL cpu_log( log_point(76), 'indoor_model', 'start' )
1191	CALL im_main_heatcool
1192	CALL cpu_log( log_point(76), 'indoor_model', 'stop' )
1193
1194	ENDIF
1195	ENDIF
1196	!
1197	!-- Increase simulation time and output times
1198	nr_timesteps_this_run = nr_timesteps_this_run + 1
1199	current_timestep_number = current_timestep_number + 1
1200	simulated_time = simulated_time + dt_3d
1201	time_since_reference_point = simulated_time - coupling_start_time
1202	simulated_time_chr = time_to_string( time_since_reference_point )
1203
1204
1205	IF ( time_since_reference_point >= skip_time_data_output_av ) THEN
1206	time_do_av = time_do_av + dt_3d
1207	ENDIF
1208	IF ( time_since_reference_point >= skip_time_do2d_xy ) THEN
1209	time_do2d_xy = time_do2d_xy + dt_3d
1210	ENDIF
1211	IF ( time_since_reference_point >= skip_time_do2d_xz ) THEN
1212	time_do2d_xz = time_do2d_xz + dt_3d
1213	ENDIF
1214	IF ( time_since_reference_point >= skip_time_do2d_yz ) THEN
1215	time_do2d_yz = time_do2d_yz + dt_3d
1216	ENDIF
1217	IF ( time_since_reference_point >= skip_time_do3d ) THEN
1218	time_do3d = time_do3d + dt_3d
1219	ENDIF
1220	DO mid = 1, masks
1221	IF ( time_since_reference_point >= skip_time_domask(mid) ) THEN
1222	time_domask(mid)= time_domask(mid) + dt_3d
1223	ENDIF
1224	ENDDO
1225	IF ( time_since_reference_point >= skip_time_dosp ) THEN
1226	time_dosp = time_dosp + dt_3d
1227	ENDIF
1228	time_dots = time_dots + dt_3d
1229	IF ( .NOT. first_call_lpm ) THEN
1230	time_dopts = time_dopts + dt_3d
1231	ENDIF
1232	IF ( time_since_reference_point >= skip_time_dopr ) THEN
1233	time_dopr = time_dopr + dt_3d
1234	ENDIF
1235	time_dopr_listing = time_dopr_listing + dt_3d
1236	time_run_control = time_run_control + dt_3d
1237	!
1238	!-- Increment time-counter for surface output
1239	IF ( surface_output ) THEN
1240	IF ( time_since_reference_point >= skip_time_dosurf ) THEN
1241	time_dosurf = time_dosurf + dt_3d
1242	ENDIF
1243	IF ( time_since_reference_point >= skip_time_dosurf_av ) THEN
1244	time_dosurf_av = time_dosurf_av + dt_3d
1245	ENDIF
1246	ENDIF
1247	!
1248	!-- Increment time-counter for virtual measurements
1249	IF ( virtual_measurement .AND. vm_time_start <= time_since_reference_point ) THEN
1250	time_virtual_measurement = time_virtual_measurement + dt_3d
1251	ENDIF
1252	!
1253	!-- In case of synthetic turbulence generation and parametrized turbulence
1254	!-- information, update the time counter and if required, adjust the
1255	!-- STG to new atmospheric conditions.
1256	IF ( use_syn_turb_gen ) THEN
1257	IF ( parametrize_inflow_turbulence ) THEN
1258	time_stg_adjust = time_stg_adjust + dt_3d
1259	IF ( time_stg_adjust >= dt_stg_adjust ) THEN
1260	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'start' )
1261	CALL stg_adjust
1262	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'stop' )
1263	ENDIF
1264	ENDIF
1265	time_stg_call = time_stg_call + dt_3d
1266	ENDIF
1267
1268	!
1269	!-- Data exchange between coupled models
1270	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled .AND. .NOT. vnested ) THEN
1271	time_coupling = time_coupling + dt_3d
1272
1273	!
1274	!-- In case of model termination initiated by the local model
1275	!-- (terminate_coupled > 0), the coupler must be skipped because it would
1276	!-- cause an MPI intercomminucation hang.
1277	!-- If necessary, the coupler will be called at the beginning of the
1278	!-- next restart run.
1279	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
1280	CALL surface_coupler
1281	time_coupling = time_coupling - dt_coupling
1282	ENDDO
1283	ENDIF
1284
1285	!
1286	!-- Biometeorology calculation of stationary thermal indices
1287	!-- Todo (kanani): biometeorology needs own time_... treatment.
1288	!-- It might be that time_do2d_xy differs from time_do3d,
1289	!-- and then we might get trouble with the biomet output,
1290	!-- because we can have 2d and/or 3d biomet output!!
1291	IF ( biometeorology &
1292	.AND. ( ( time_do3d >= dt_do3d .AND. time_since_reference_point >= skip_time_do3d ) &
1293	.OR. &
1294	( time_do2d_xy >= dt_do2d_xy .AND. time_since_reference_point >= skip_time_do2d_xy ) &
1295	) ) THEN
1296	!
1297	!-- If required, do thermal comfort calculations
1298	IF ( thermal_comfort ) THEN
1299	CALL bio_calculate_thermal_index_maps ( .FALSE. )
1300	ENDIF
1301	!
1302	!-- If required, do UV exposure calculations
1303	IF ( uv_exposure ) THEN
1304	CALL bio_calculate_uv_exposure
1305	ENDIF
1306	ENDIF
1307
1308	!
1309	!-- Execute alle other module actions routunes
1310	CALL module_interface_actions( 'after_integration' )
1311
1312	!
1313	!-- If Galilei transformation is used, determine the distance that the
1314	!-- model has moved so far
1315	IF ( galilei_transformation ) THEN
1316	advected_distance_x = advected_distance_x + u_gtrans * dt_3d
1317	advected_distance_y = advected_distance_y + v_gtrans * dt_3d
1318	ENDIF
1319
1320	!
1321	!-- Check, if restart is necessary (because cpu-time is expiring or
1322	!-- because it is forced by user) and set stop flag
1323	!-- This call is skipped if the remote model has already initiated a restart.
1324	IF ( .NOT. terminate_run ) CALL check_for_restart
1325
1326	!
1327	!-- Carry out statistical analysis and output at the requested output times.
1328	!-- The MOD function is used for calculating the output time counters (like
1329	!-- time_dopr) in order to regard a possible decrease of the output time
1330	!-- interval in case of restart runs
1331
1332	!
1333	!-- Set a flag indicating that so far no statistics have been created
1334	!-- for this time step
1335	flow_statistics_called = .FALSE.
1336
1337	!
1338	!-- If required, call flow_statistics for averaging in time
1339	IF ( averaging_interval_pr /= 0.0_wp .AND. &
1340	( dt_dopr - time_dopr ) <= averaging_interval_pr .AND. &
1341	time_since_reference_point >= skip_time_dopr ) THEN
1342	time_dopr_av = time_dopr_av + dt_3d
1343	IF ( time_dopr_av >= dt_averaging_input_pr ) THEN
1344	do_sum = .TRUE.
1345	time_dopr_av = MOD( time_dopr_av, MAX( dt_averaging_input_pr, dt_3d ) )
1346	ENDIF
1347	ENDIF
1348	IF ( do_sum ) CALL flow_statistics
1349
1350	!
1351	!-- Sum-up 3d-arrays for later output of time-averaged 2d/3d/masked data
1352	IF ( averaging_interval /= 0.0_wp .AND. &
1353	( dt_data_output_av - time_do_av ) <= averaging_interval .AND. &
1354	time_since_reference_point >= skip_time_data_output_av ) &
1355	THEN
1356	time_do_sla = time_do_sla + dt_3d
1357	IF ( time_do_sla >= dt_averaging_input ) THEN
1358	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1359	CALL doq_calculate
1360
1361	CALL sum_up_3d_data
1362	average_count_3d = average_count_3d + 1
1363	time_do_sla = MOD( time_do_sla, MAX( dt_averaging_input, dt_3d ) )
1364	ENDIF
1365	ENDIF
1366	!
1367	!-- Average surface data
1368	IF ( surface_output ) THEN
1369	IF ( averaging_interval_surf /= 0.0_wp &
1370	.AND. ( dt_dosurf_av - time_dosurf_av ) <= averaging_interval_surf &
1371	.AND. time_since_reference_point >= skip_time_dosurf_av ) THEN
1372	IF ( time_dosurf_av >= dt_averaging_input ) THEN
1373	CALL surface_data_output_averaging
1374	average_count_surf = average_count_surf + 1
1375	ENDIF
1376	ENDIF
1377	ENDIF
1378
1379	!
1380	!-- Calculate spectra for time averaging
1381	IF ( averaging_interval_sp /= 0.0_wp .AND. ( dt_dosp - time_dosp ) <= averaging_interval_sp&
1382	.AND. time_since_reference_point >= skip_time_dosp ) THEN
1383	time_dosp_av = time_dosp_av + dt_3d
1384	IF ( time_dosp_av >= dt_averaging_input_pr ) THEN
1385	CALL calc_spectra
1386	time_dosp_av = MOD( time_dosp_av, MAX( dt_averaging_input_pr, dt_3d ) )
1387	ENDIF
1388	ENDIF
1389
1390	!
1391	!-- Call flight module and output data
1392	IF ( virtual_flight ) THEN
1393	CALL flight_measurement
1394	CALL data_output_flight
1395	ENDIF
1396	!
1397	!-- Take virtual measurements
1398	IF ( virtual_measurement .AND. time_virtual_measurement >= dt_virtual_measurement &
1399	.AND. vm_time_start <= time_since_reference_point ) THEN
1400	CALL vm_sampling
1401	CALL vm_data_output
1402	time_virtual_measurement = MOD( time_virtual_measurement, &
1403	MAX( dt_virtual_measurement, dt_3d ) )
1404	ENDIF
1405	!
1406	!-- Profile output (ASCII) on file
1407	IF ( time_dopr_listing >= dt_dopr_listing ) THEN
1408	CALL print_1d
1409	time_dopr_listing = MOD( time_dopr_listing, MAX( dt_dopr_listing, dt_3d ) )
1410	ENDIF
1411
1412	!
1413	!-- Graphic output for PROFIL
1414	IF ( time_dopr >= dt_dopr .AND. time_since_reference_point >= skip_time_dopr ) THEN
1415	IF ( dopr_n /= 0 ) CALL data_output_profiles
1416	time_dopr = MOD( time_dopr, MAX( dt_dopr, dt_3d ) )
1417	time_dopr_av = 0.0_wp ! due to averaging (see above)
1418	ENDIF
1419
1420	!
1421	!-- Graphic output for time series
1422	IF ( time_dots >= dt_dots ) THEN
1423	CALL data_output_tseries
1424	time_dots = MOD( time_dots, MAX( dt_dots, dt_3d ) )
1425	ENDIF
1426
1427	!
1428	!-- Output of spectra (formatted for use with PROFIL), in case of no
1429	!-- time averaging, spectra has to be calculated before
1430	IF ( time_dosp >= dt_dosp .AND. time_since_reference_point >= skip_time_dosp ) THEN
1431	IF ( average_count_sp == 0 ) CALL calc_spectra
1432	CALL data_output_spectra
1433	time_dosp = MOD( time_dosp, MAX( dt_dosp, dt_3d ) )
1434	ENDIF
1435
1436	!
1437	!-- 2d-data output (cross-sections)
1438	IF ( time_do2d_xy >= dt_do2d_xy .AND. time_since_reference_point >= skip_time_do2d_xy ) THEN
1439	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1440	CALL doq_calculate
1441
1442	CALL data_output_2d( 'xy', 0 )
1443	time_do2d_xy = MOD( time_do2d_xy, MAX( dt_do2d_xy, dt_3d ) )
1444	ENDIF
1445	IF ( time_do2d_xz >= dt_do2d_xz .AND. time_since_reference_point >= skip_time_do2d_xz ) THEN
1446	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1447
1448	CALL doq_calculate
1449	CALL data_output_2d( 'xz', 0 )
1450	time_do2d_xz = MOD( time_do2d_xz, MAX( dt_do2d_xz, dt_3d ) )
1451	ENDIF
1452	IF ( time_do2d_yz >= dt_do2d_yz .AND. time_since_reference_point >= skip_time_do2d_yz ) THEN
1453	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1454	CALL doq_calculate
1455
1456	CALL data_output_2d( 'yz', 0 )
1457	time_do2d_yz = MOD( time_do2d_yz, MAX( dt_do2d_yz, dt_3d ) )
1458	ENDIF
1459
1460	!
1461	!-- 3d-data output (volume data)
1462	IF ( time_do3d >= dt_do3d .AND. time_since_reference_point >= skip_time_do3d ) THEN
1463	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1464	CALL doq_calculate
1465
1466	CALL data_output_3d( 0 )
1467	time_do3d = MOD( time_do3d, MAX( dt_do3d, dt_3d ) )
1468	ENDIF
1469
1470	!
1471	!-- Masked data output
1472	DO mid = 1, masks
1473	IF ( time_domask(mid) >= dt_domask(mid) &
1474	.AND. time_since_reference_point >= skip_time_domask(mid) ) THEN
1475	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1476	CALL doq_calculate
1477
1478	CALL data_output_mask( 0, mid )
1479	time_domask(mid) = MOD( time_domask(mid), MAX( dt_domask(mid), dt_3d ) )
1480	ENDIF
1481	ENDDO
1482
1483	!
1484	!-- Output of time-averaged 2d/3d/masked data
1485	IF ( time_do_av >= dt_data_output_av &
1486	.AND. time_since_reference_point >= skip_time_data_output_av ) THEN
1487	CALL average_3d_data
1488	!
1489	!-- Udate thermal comfort indices based on updated averaged input
1490	IF ( biometeorology .AND. thermal_comfort ) THEN
1491	CALL bio_calculate_thermal_index_maps ( .TRUE. )
1492	ENDIF
1493	CALL data_output_2d( 'xy', 1 )
1494	CALL data_output_2d( 'xz', 1 )
1495	CALL data_output_2d( 'yz', 1 )
1496	CALL data_output_3d( 1 )
1497	DO mid = 1, masks
1498	CALL data_output_mask( 1, mid )
1499	ENDDO
1500	time_do_av = MOD( time_do_av, MAX( dt_data_output_av, dt_3d ) )
1501	ENDIF
1502	!
1503	!-- Output of surface data, instantaneous and averaged data
1504	IF ( surface_output ) THEN
1505	IF ( time_dosurf >= dt_dosurf .AND. time_since_reference_point >= skip_time_dosurf ) THEN
1506	CALL surface_data_output( 0 )
1507	time_dosurf = MOD( time_dosurf, MAX( dt_dosurf, dt_3d ) )
1508	ENDIF
1509	IF ( time_dosurf_av >= dt_dosurf_av .AND. time_since_reference_point >= skip_time_dosurf_av ) THEN
1510	CALL surface_data_output( 1 )
1511	time_dosurf_av = MOD( time_dosurf_av, MAX( dt_dosurf_av, dt_3d ) )
1512	ENDIF
1513	ENDIF
1514
1515	!
1516	!-- Output of particle time series
1517	IF ( particle_advection ) THEN
1518	IF ( time_dopts >= dt_dopts .OR. &
1519	( time_since_reference_point >= particle_advection_start .AND. &
1520	first_call_lpm ) ) THEN
1521	CALL lpm_data_output_ptseries
1522	time_dopts = MOD( time_dopts, MAX( dt_dopts, dt_3d ) )
1523	ENDIF
1524	ENDIF
1525
1526	!
1527	!-- If required, set the heat flux for the next time step to a random value
1528	IF ( constant_heatflux .AND. random_heatflux ) THEN
1529	IF ( surf_def_h(0)%ns >= 1 ) THEN
1530	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1531	CALL disturb_heatflux( surf_def_h(0) )
1532	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1533	ENDIF
1534	IF ( surf_lsm_h%ns >= 1 ) THEN
1535	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1536	CALL disturb_heatflux( surf_lsm_h )
1537	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1538	ENDIF
1539	IF ( surf_usm_h%ns >= 1 ) THEN
1540	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1541	CALL disturb_heatflux( surf_usm_h )
1542	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1543	ENDIF
1544	ENDIF
1545
1546	!
1547	!-- Execute alle other module actions routunes
1548	CALL module_interface_actions( 'after_timestep' )
1549
1550	!
1551	!-- Determine size of next time step. Save timestep dt_3d because it is
1552	!-- newly calculated in routine timestep, but required further below for
1553	!-- steering the run control output interval
1554	dt_3d_old = dt_3d
1555	CALL timestep
1556
1557	!
1558	!-- Synchronize the timestep in case of nested run.
1559	IF ( nested_run ) THEN
1560	!
1561	!-- Synchronize by unifying the time step.
1562	!-- Global minimum of all time-steps is used for all.
1563	CALL pmci_synchronize
1564	ENDIF
1565
1566	!
1567	!-- Computation and output of run control parameters.
1568	!-- This is also done whenever perturbations have been imposed
1569	IF ( time_run_control >= dt_run_control .OR. &
1570	timestep_scheme(1:5) /= 'runge' .OR. disturbance_created ) &
1571	THEN
1572	CALL run_control
1573	IF ( time_run_control >= dt_run_control ) THEN
1574	time_run_control = MOD( time_run_control, MAX( dt_run_control, dt_3d_old ) )
1575	ENDIF
1576	ENDIF
1577
1578	!
1579	!-- Output elapsed simulated time in form of a progress bar on stdout
1580	IF ( myid == 0 ) CALL output_progress_bar
1581
1582	CALL cpu_log( log_point_s(10), 'timesteps', 'stop' )
1583
1584
1585	ENDDO ! time loop
1586
1587	#if defined( _OPENACC )
1588	CALL exit_surface_arrays
1589	#endif
1590	!$ACC END DATA
1591	!$ACC END DATA
1592	!$ACC END DATA
1593	!$ACC END DATA
1594	!$ACC END DATA
1595	!$ACC END DATA
1596	!$ACC END DATA
1597
1598	!
1599	!-- Vertical nesting: Deallocate variables initialized for vertical nesting
1600	IF ( vnest_init ) CALL vnest_deallocate
1601
1602	IF ( myid == 0 ) CALL finish_progress_bar
1603
1604	CALL location_message( 'atmosphere (and/or ocean) time-stepping', 'finished' )
1605
1606	END SUBROUTINE time_integration

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