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source: palm/trunk/SOURCE/time_integration.f90 @ 4339

Last change on this file since 4339 was 4329, checked in by motisi, 5 years ago
Renamed wall_flags_0 to wall_flags_static_0
Property svn:keywords set to `Id`
File size: 67.9 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 4329 2019-12-10 15:46:36Z suehring $
27	! Renamed wall_flags_0 to wall_flags_static_0
28	!
29	! 4281 2019-10-29 15:15:39Z schwenkel
30	! Moved boundary conditions to module interface
31	!
32	! 4276 2019-10-28 16:03:29Z schwenkel
33	! Further modularization of lpm code components
34	!
35	! 4275 2019-10-28 15:34:55Z schwenkel
36	! Move call oft lpm to the end of intermediate timestep loop
37	!
38	! 4268 2019-10-17 11:29:38Z schwenkel
39	! Removing module specific boundary conditions an put them into their modules
40	!
41	! 4227 2019-09-10 18:04:34Z gronemeier
42	! implement new palm_date_time_mod
43	!
44	! 4226 2019-09-10 17:03:24Z suehring
45	! Changes in interface for the offline nesting
46	!
47	! 4182 2019-08-22 15:20:23Z scharf
48	! Corrected "Former revisions" section
49	!
50	! 4170 2019-08-19 17:12:31Z gronemeier
51	! copy diss, diss_p, tdiss_m to GPU
52	!
53	! 4144 2019-08-06 09:11:47Z raasch
54	! relational operators .EQ., .NE., etc. replaced by ==, /=, etc.
55	!
56	! 4126 2019-07-30 11:09:11Z gronemeier
57	! renamed routine to calculate uv exposure
58	!
59	! 4111 2019-07-22 18:16:57Z suehring
60	! advc_flags_1 / advc_flags_2 renamed to advc_flags_m / advc_flags_s
61	!
62	! 4069 2019-07-01 14:05:51Z Giersch
63	! Masked output running index mid has been introduced as a local variable to
64	! avoid runtime error (Loop variable has been modified) in time_integration
65	!
66	! 4064 2019-07-01 05:33:33Z gronemeier
67	! Moved call to radiation module out of intermediate time loop
68	!
69	! 4048 2019-06-21 21:00:21Z knoop
70	! Moved production_e_init call into turbulence_closure_mod
71	!
72	! 4047 2019-06-21 18:58:09Z knoop
73	! Added remainings of swap_timelevel upon its dissolution
74	!
75	! 4043 2019-06-18 16:59:00Z schwenkel
76	! Further LPM modularization
77	!
78	! 4039 2019-06-18 10:32:41Z suehring
79	! Rename subroutines in module for diagnostic quantities
80	!
81	! 4029 2019-06-14 14:04:35Z raasch
82	! exchange of ghost points and boundary conditions separated for chemical species and SALSA module,
83	! bugfix: decycling of chemistry species after nesting data transfer
84	!
85	! 4022 2019-06-12 11:52:39Z suehring
86	! Call synthetic turbulence generator at last RK3 substep right after boundary
87	! conditions are updated in offline nesting in order to assure that
88	! perturbations are always imposed
89	!
90	! 4017 2019-06-06 12:16:46Z schwenkel
91	! Mass (volume) flux correction included to ensure global mass conservation for child domains.
92	!
93	! 3994 2019-05-22 18:08:09Z suehring
94	! output of turbulence intensity added
95	!
96	! 3988 2019-05-22 11:32:37Z kanani
97	! Implement steerable output interval for virtual measurements
98	!
99	! 3968 2019-05-13 11:04:01Z suehring
100	! replace nspec_out with n_matched_vars
101	!
102	! 3929 2019-04-24 12:52:08Z banzhafs
103	! Reverse changes back from revision 3878: use chem_boundary_conds instead of
104	! chem_boundary_conds_decycle
105	!
106	!
107	! 3885 2019-04-11 11:29:34Z kanani
108	! Changes related to global restructuring of location messages and introduction
109	! of additional debug messages
110	!
111	! 3879 2019-04-08 20:25:23Z knoop
112	! Moved wtm_forces to module_interface_actions
113	!
114	! 3872 2019-04-08 15:03:06Z knoop
115	! Modifications made for salsa:
116	! - Call salsa_emission_update at each time step but do the checks within
117	! salsa_emission_update (i.e. skip_time_do_salsa >= time_since_reference_point
118	! and next_aero_emission_update <= time_since_reference_point ).
119	! - Renamed nbins --> nbins_aerosol, ncc_tot --> ncomponents_mass and
120	! ngast --> ngases_salsa and loop indices b, c and sg to ib, ic and ig
121	! - Apply nesting for salsa variables
122	! - Removed cpu_log calls speciffic for salsa.
123	!
124	! 3833 2019-03-28 15:04:04Z forkel
125	! added USE chem_gasphase_mod, replaced nspec by nspec since fixed compounds are not integrated
126	!
127	! 3820 2019-03-27 11:53:41Z forkel
128	! renamed do_emiss to emissions_anthropogenic (ecc)
129	!
130	!
131	! 3774 2019-03-04 10:52:49Z moh.hefny
132	! rephrase if statement to avoid unallocated array in case of
133	! nesting_offline is false (crashing during debug mode)
134	!
135	! 3761 2019-02-25 15:31:42Z raasch $
136	! module section re-formatted and openacc required variables moved to separate section,
137	! re-formatting to 100 char line width
138	!
139	! 3745 2019-02-15 18:57:56Z suehring
140	! Call indoor model after first timestep
141	!
142	! 3744 2019-02-15 18:38:58Z suehring
143	! - Moved call of bio_calculate_thermal_index_maps from biometeorology module to
144	! time_integration to make sure averaged input is updated before calculating.
145	!
146	! 3739 2019-02-13 08:05:17Z dom_dwd_user
147	! Removed everything related to "time_bio_results" as this is never used.
148	!
149	! 3724 2019-02-06 16:28:23Z kanani
150	! Correct double-used log_point_s unit
151	!
152	! 3719 2019-02-06 13:10:18Z kanani
153	! - removed wind_turbine cpu measurement, since same time is measured inside
154	! wtm_forces subroutine as special measures
155	! - moved the numerous vnest cpulog to special measures
156	! - extended radiation cpulog over entire radiation part,
157	! moved radiation_interactions cpulog to special measures
158	! - moved some cpu_log calls to this routine for better overview
159	!
160	! 3705 2019-01-29 19:56:39Z suehring
161	! Data output for virtual measurements added
162	!
163	! 3704 2019-01-29 19:51:41Z suehring
164	! Rename subroutines for surface-data output
165	!
166	! 3647 2019-01-02 14:10:44Z kanani
167	! Bugfix: add time_since_reference_point to IF clause for data_output calls
168	! (otherwise skip_time_* values don't come into affect with dt_do* = 0.0).
169	! Clean up indoor_model and biometeorology model call.
170	!
171	! Revision 1.1 1997/08/11 06:19:04 raasch
172	! Initial revision
173	!
174	!
175	! Description:
176	! ------------
177	!> Integration in time of the model equations, statistical analysis and graphic
178	!> output
179	!------------------------------------------------------------------------------!
180	SUBROUTINE time_integration
181
182
183	USE advec_ws, &
184	ONLY: ws_statistics
185
186	USE arrays_3d, &
187	ONLY: diss, diss_p, dzu, e, e_p, nc, nc_p, nr, nr_p, prho, pt, pt_p, pt_init, q_init, q, &
188	qc, qc_p, qr, qr_p, q_p, ref_state, rho_ocean, s, s_p, sa_p, &
189	tend, u, u_p, v, vpt, v_p, w, w_p
190
191	USE biometeorology_mod, &
192	ONLY: bio_calculate_thermal_index_maps, thermal_comfort, bio_calculate_uv_exposure, &
193	uv_exposure
194
195	USE bulk_cloud_model_mod, &
196	ONLY: bulk_cloud_model, calc_liquid_water_content, collision_turbulence, &
197	microphysics_morrison, microphysics_seifert
198
199	USE calc_mean_profile_mod, &
200	ONLY: calc_mean_profile
201
202	USE chem_emissions_mod, &
203	ONLY: chem_emissions_setup
204
205	USE chem_gasphase_mod, &
206	ONLY: nvar
207
208	USE chem_modules, &
209	ONLY: bc_cs_t_val, chem_species, cs_name, emissions_anthropogenic, n_matched_vars
210
211	USE chemistry_model_mod, &
212	ONLY: chem_boundary_conds
213
214	USE control_parameters, &
215	ONLY: advected_distance_x, advected_distance_y, air_chemistry, average_count_3d, &
216	averaging_interval, averaging_interval_pr, bc_lr_cyc, bc_ns_cyc, bc_pt_t_val, &
217	bc_q_t_val, biometeorology, call_psolver_at_all_substeps, child_domain, &
218	constant_flux_layer, constant_heatflux, create_disturbances, &
219	dopr_n, constant_diffusion, coupling_mode, coupling_start_time, &
220	current_timestep_number, disturbance_created, disturbance_energy_limit, dist_range, &
221	do_sum, dt_3d, dt_averaging_input, dt_averaging_input_pr, dt_coupling, &
222	dt_data_output_av, dt_disturb, dt_do2d_xy, dt_do2d_xz, dt_do2d_yz, dt_do3d, &
223	dt_domask,dt_dopts, dt_dopr, dt_dopr_listing, dt_dots, dt_run_control, &
224	end_time, first_call_lpm, first_call_mas, galilei_transformation, humidity, &
225	indoor_model, intermediate_timestep_count, intermediate_timestep_count_max, &
226	land_surface, large_scale_forcing, loop_optimization, lsf_surf, lsf_vert, masks, &
227	multi_agent_system_end, multi_agent_system_start, nesting_offline, neutral, &
228	nr_timesteps_this_run, nudging, ocean_mode, passive_scalar, pt_reference, &
229	pt_slope_offset, random_heatflux, rans_mode, rans_tke_e, run_coupled, salsa, &
230	simulated_time, simulated_time_chr, skip_time_do2d_xy, skip_time_do2d_xz, &
231	skip_time_do2d_yz, skip_time_do3d, skip_time_domask, skip_time_dopr, &
232	skip_time_data_output_av, sloping_surface, stop_dt, surface_output, &
233	terminate_coupled, terminate_run, timestep_scheme, time_coupling, time_do2d_xy, &
234	time_do2d_xz, time_do2d_yz, time_do3d, time_domask, time_dopr, time_dopr_av, &
235	time_dopr_listing, time_dopts, time_dosp, time_dosp_av, time_dots, time_do_av, &
236	time_do_sla, time_disturb, time_run_control, time_since_reference_point, &
237	turbulent_inflow, turbulent_outflow, urban_surface, &
238	use_initial_profile_as_reference, use_single_reference_value, u_gtrans, v_gtrans, &
239	virtual_flight, virtual_measurement, ws_scheme_mom, ws_scheme_sca, timestep_count
240
241	USE cpulog, &
242	ONLY: cpu_log, log_point, log_point_s
243
244	USE diagnostic_output_quantities_mod, &
245	ONLY: doq_calculate, &
246	timestep_number_at_prev_calc
247
248	USE flight_mod, &
249	ONLY: flight_measurement
250
251	USE indices, &
252	ONLY: nbgp, nx, nxl, nxlg, nxr, nxrg, nzb, nzt
253
254	USE indoor_model_mod, &
255	ONLY: dt_indoor, im_main_heatcool, time_indoor
256
257	USE interfaces
258
259	USE kinds
260
261	USE land_surface_model_mod, &
262	ONLY: lsm_boundary_condition, lsm_energy_balance, lsm_soil_model, skip_time_do_lsm
263
264	USE lagrangian_particle_model_mod, &
265	ONLY: lpm_data_output_ptseries
266
267	USE lsf_nudging_mod, &
268	ONLY: calc_tnudge, ls_forcing_surf, ls_forcing_vert, nudge_ref
269
270	USE module_interface, &
271	ONLY: module_interface_actions, module_interface_swap_timelevel, &
272	module_interface_boundary_conditions
273
274	USE multi_agent_system_mod, &
275	ONLY: agents_active, multi_agent_system
276
277	USE nesting_offl_mod, &
278	ONLY: nesting_offl_bc, &
279	nesting_offl_geostrophic_wind, &
280	nesting_offl_input, &
281	nesting_offl_interpolation_factor, &
282	nesting_offl_mass_conservation
283
284	USE netcdf_data_input_mod, &
285	ONLY: chem_emis, chem_emis_att
286
287	USE ocean_mod, &
288	ONLY: prho_reference
289
290	USE palm_date_time_mod, &
291	ONLY: get_date_time
292
293	USE particle_attributes, &
294	ONLY: particle_advection, particle_advection_start, use_sgs_for_particles, wang_kernel
295
296	USE pegrid
297
298	USE pmc_interface, &
299	ONLY: nested_run, nesting_mode, pmci_boundary_conds, pmci_datatrans, pmci_synchronize, &
300	pmci_ensure_nest_mass_conservation, pmci_ensure_nest_mass_conservation_vertical, &
301	pmci_set_swaplevel
302
303	USE progress_bar, &
304	ONLY: finish_progress_bar, output_progress_bar
305
306	USE prognostic_equations_mod, &
307	ONLY: prognostic_equations_cache, prognostic_equations_vector
308
309	USE radiation_model_mod, &
310	ONLY: dt_radiation, force_radiation_call, radiation, radiation_control, &
311	radiation_interaction, radiation_interactions, skip_time_do_radiation, time_radiation
312
313	USE salsa_mod, &
314	ONLY: aerosol_number, aerosol_mass, bc_am_t_val, bc_an_t_val, bc_gt_t_val, &
315	nbins_aerosol, ncomponents_mass, ngases_salsa, salsa_boundary_conds, &
316	salsa_emission_update, salsa_gas, salsa_gases_from_chem, skip_time_do_salsa
317
318	USE spectra_mod, &
319	ONLY: average_count_sp, averaging_interval_sp, calc_spectra, dt_dosp, skip_time_dosp
320
321	USE statistics, &
322	ONLY: flow_statistics_called, hom, pr_palm, sums_ls_l
323
324
325	USE surface_layer_fluxes_mod, &
326	ONLY: surface_layer_fluxes
327
328	USE surface_data_output_mod, &
329	ONLY: average_count_surf, averaging_interval_surf, dt_dosurf, dt_dosurf_av, &
330	surface_data_output, surface_data_output_averaging, skip_time_dosurf, &
331	skip_time_dosurf_av, time_dosurf, time_dosurf_av
332
333	USE surface_mod, &
334	ONLY: surf_def_h, surf_lsm_h, surf_usm_h
335
336	USE synthetic_turbulence_generator_mod, &
337	ONLY: dt_stg_call, dt_stg_adjust, parametrize_inflow_turbulence, stg_adjust, stg_main, &
338	time_stg_adjust, time_stg_call, use_syn_turb_gen
339
340	USE turbulence_closure_mod, &
341	ONLY: tcm_diffusivities
342
343	USE urban_surface_mod, &
344	ONLY: usm_boundary_condition, usm_material_heat_model, usm_material_model, &
345	usm_surface_energy_balance, usm_green_heat_model
346
347	USE vertical_nesting_mod, &
348	ONLY: vnested, vnest_anterpolate, vnest_anterpolate_e, vnest_boundary_conds, &
349	vnest_boundary_conds_khkm, vnest_deallocate, vnest_init, vnest_init_fine, &
350	vnest_start_time
351
352	USE virtual_measurement_mod, &
353	ONLY: dt_virtual_measurement, &
354	time_virtual_measurement, &
355	vm_data_output, &
356	vm_sampling, &
357	vm_time_start
358
359
360	#if defined( _OPENACC )
361	USE arrays_3d, &
362	ONLY: d, dd2zu, ddzu, ddzw, drho_air, drho_air_zw, dzw, heatflux_output_conversion, kh, &
363	km, momentumflux_output_conversion, p, ptdf_x, ptdf_y, rdf, rdf_sc, rho_air, &
364	rho_air_zw, tdiss_m, te_m, tpt_m, tu_m, tv_m, tw_m, ug, u_init, u_stokes_zu, vg, &
365	v_init, v_stokes_zu, zu
366
367	USE control_parameters, &
368	ONLY: tsc
369
370	USE indices, &
371	ONLY: advc_flags_m, advc_flags_s, nyn, nyng, nys, nysg, nz, nzb_max, wall_flags_static_0
372
373	USE statistics, &
374	ONLY: rmask, statistic_regions, sums_l, sums_l_l, sums_us2_ws_l, &
375	sums_wsus_ws_l, sums_vs2_ws_l, sums_wsvs_ws_l, sums_ws2_ws_l, sums_wspts_ws_l, &
376	sums_wsqs_ws_l, sums_wssas_ws_l, sums_wsqcs_ws_l, sums_wsqrs_ws_l, sums_wsncs_ws_l, &
377	sums_wsnrs_ws_l, sums_wsss_ws_l, weight_substep, sums_salsa_ws_l
378
379	USE surface_mod, &
380	ONLY: bc_h, enter_surface_arrays, exit_surface_arrays
381	#endif
382
383
384	IMPLICIT NONE
385
386	CHARACTER (LEN=9) :: time_to_string !<
387
388	INTEGER(iwp) :: hour !< hour of current time
389	INTEGER(iwp) :: hour_call_emis !< last hour where emission was called
390	INTEGER(iwp) :: ib !< index for aerosol size bins
391	INTEGER(iwp) :: ic !< index for aerosol mass bins
392	INTEGER(iwp) :: icc !< additional index for aerosol mass bins
393	INTEGER(iwp) :: ig !< index for salsa gases
394	INTEGER(iwp) :: lsp !<
395	INTEGER(iwp) :: lsp_usr !<
396	INTEGER(iwp) :: mid !< masked output running index
397	INTEGER(iwp) :: n !< loop counter for chemistry species
398
399	REAL(wp) :: dt_3d_old !< temporary storage of timestep to be used for
400	!< steering of run control output interval
401	REAL(wp) :: time_since_reference_point_save !< original value of
402	!< time_since_reference_point
403
404
405	!
406	!-- Copy data from arrays_3d
407	!$ACC DATA &
408	!$ACC COPY(d(nzb+1:nzt,nys:nyn,nxl:nxr)) &
409	!$ACC COPY(diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
410	!$ACC COPY(e(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
411	!$ACC COPY(u(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
412	!$ACC COPY(v(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
413	!$ACC COPY(w(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
414	!$ACC COPY(kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
415	!$ACC COPY(km(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
416	!$ACC COPY(p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
417	!$ACC COPY(pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
418
419	!$ACC DATA &
420	!$ACC COPY(diss_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
421	!$ACC COPY(e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
422	!$ACC COPY(u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
423	!$ACC COPY(v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
424	!$ACC COPY(w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
425	!$ACC COPY(pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
426	!$ACC COPY(tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
427	!$ACC COPY(tdiss_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
428	!$ACC COPY(te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
429	!$ACC COPY(tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
430	!$ACC COPY(tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
431	!$ACC COPY(tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
432	!$ACC COPY(tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
433
434	!$ACC DATA &
435	!$ACC COPYIN(rho_air(nzb:nzt+1), drho_air(nzb:nzt+1)) &
436	!$ACC COPYIN(rho_air_zw(nzb:nzt+1), drho_air_zw(nzb:nzt+1)) &
437	!$ACC COPYIN(zu(nzb:nzt+1)) &
438	!$ACC COPYIN(dzu(1:nzt+1), dzw(1:nzt+1)) &
439	!$ACC COPYIN(ddzu(1:nzt+1), dd2zu(1:nzt)) &
440	!$ACC COPYIN(ddzw(1:nzt+1)) &
441	!$ACC COPYIN(heatflux_output_conversion(nzb:nzt+1)) &
442	!$ACC COPYIN(momentumflux_output_conversion(nzb:nzt+1)) &
443	!$ACC COPYIN(rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt)) &
444	!$ACC COPYIN(ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng)) &
445	!$ACC COPYIN(ref_state(0:nz+1)) &
446	!$ACC COPYIN(u_init(0:nz+1), v_init(0:nz+1)) &
447	!$ACC COPYIN(u_stokes_zu(nzb:nzt+1), v_stokes_zu(nzb:nzt+1)) &
448	!$ACC COPYIN(pt_init(0:nz+1)) &
449	!$ACC COPYIN(ug(0:nz+1), vg(0:nz+1))
450
451	!
452	!-- Copy data from control_parameters
453	!$ACC DATA &
454	!$ACC COPYIN(tsc(1:5))
455
456	!
457	!-- Copy data from indices
458	!$ACC DATA &
459	!$ACC COPYIN(advc_flags_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
460	!$ACC COPYIN(advc_flags_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
461	!$ACC COPYIN(wall_flags_static_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
462
463	!
464	!-- Copy data from surface_mod
465	!$ACC DATA &
466	!$ACC COPYIN(bc_h(0:1)) &
467	!$ACC COPYIN(bc_h(0)%i(1:bc_h(0)%ns)) &
468	!$ACC COPYIN(bc_h(0)%j(1:bc_h(0)%ns)) &
469	!$ACC COPYIN(bc_h(0)%k(1:bc_h(0)%ns)) &
470	!$ACC COPYIN(bc_h(1)%i(1:bc_h(1)%ns)) &
471	!$ACC COPYIN(bc_h(1)%j(1:bc_h(1)%ns)) &
472	!$ACC COPYIN(bc_h(1)%k(1:bc_h(1)%ns))
473
474	!
475	!-- Copy data from statistics
476	!$ACC DATA &
477	!$ACC COPYIN(hom(0:nz+1,1:2,1:4,0)) &
478	!$ACC COPYIN(rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions)) &
479	!$ACC COPYIN(weight_substep(1:intermediate_timestep_count_max)) &
480	!$ACC COPY(sums_l(nzb:nzt+1,1:pr_palm,0)) &
481	!$ACC COPY(sums_l_l(nzb:nzt+1,0:statistic_regions,0)) &
482	!$ACC COPY(sums_us2_ws_l(nzb:nzt+1,0)) &
483	!$ACC COPY(sums_wsus_ws_l(nzb:nzt+1,0)) &
484	!$ACC COPY(sums_vs2_ws_l(nzb:nzt+1,0)) &
485	!$ACC COPY(sums_wsvs_ws_l(nzb:nzt+1,0)) &
486	!$ACC COPY(sums_ws2_ws_l(nzb:nzt+1,0)) &
487	!$ACC COPY(sums_wspts_ws_l(nzb:nzt+1,0)) &
488	!$ACC COPY(sums_wssas_ws_l(nzb:nzt+1,0)) &
489	!$ACC COPY(sums_wsqs_ws_l(nzb:nzt+1,0)) &
490	!$ACC COPY(sums_wsqcs_ws_l(nzb:nzt+1,0)) &
491	!$ACC COPY(sums_wsqrs_ws_l(nzb:nzt+1,0)) &
492	!$ACC COPY(sums_wsncs_ws_l(nzb:nzt+1,0)) &
493	!$ACC COPY(sums_wsnrs_ws_l(nzb:nzt+1,0)) &
494	!$ACC COPY(sums_wsss_ws_l(nzb:nzt+1,0)) &
495	!$ACC COPY(sums_salsa_ws_l(nzb:nzt+1,0))
496
497	#if defined( _OPENACC )
498	CALL enter_surface_arrays
499	#endif
500
501	!
502	!-- At beginning determine the first time step
503	CALL timestep
504	!
505	!-- Synchronize the timestep in case of nested run.
506	IF ( nested_run ) THEN
507	!
508	!-- Synchronization by unifying the time step.
509	!-- Global minimum of all time-steps is used for all.
510	CALL pmci_synchronize
511	ENDIF
512
513	!
514	!-- Determine and print out the run control quantities before the first time
515	!-- step of this run. For the initial run, some statistics (e.g. divergence)
516	!-- need to be determined first --> CALL flow_statistics at the beginning of
517	!-- run_control
518	CALL run_control
519	!
520	!-- Data exchange between coupled models in case that a call has been omitted
521	!-- at the end of the previous run of a job chain.
522	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled .AND. .NOT. vnested ) THEN
523	!
524	!-- In case of model termination initiated by the local model the coupler
525	!-- must not be called because this would again cause an MPI hang.
526	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
527	CALL surface_coupler
528	time_coupling = time_coupling - dt_coupling
529	ENDDO
530	IF (time_coupling == 0.0_wp .AND. time_since_reference_point < dt_coupling ) THEN
531	time_coupling = time_since_reference_point
532	ENDIF
533	ENDIF
534
535	CALL location_message( 'atmosphere (and/or ocean) time-stepping', 'start' )
536
537	!
538	!-- Start of the time loop
539	DO WHILE ( simulated_time < end_time .AND. .NOT. stop_dt .AND. .NOT. terminate_run )
540
541	CALL cpu_log( log_point_s(10), 'timesteps', 'start' )
542	!
543	!-- Vertical nesting: initialize fine grid
544	IF ( vnested ) THEN
545	IF ( .NOT. vnest_init .AND. simulated_time >= vnest_start_time ) THEN
546	CALL cpu_log( log_point_s(22), 'vnest_init', 'start' )
547	CALL vnest_init_fine
548	vnest_init = .TRUE.
549	CALL cpu_log( log_point_s(22), 'vnest_init', 'stop' )
550	ENDIF
551	ENDIF
552	!
553	!-- Determine ug, vg and w_subs in dependence on data from external file
554	!-- LSF_DATA
555	IF ( large_scale_forcing .AND. lsf_vert ) THEN
556	CALL ls_forcing_vert ( simulated_time )
557	sums_ls_l = 0.0_wp
558	ENDIF
559
560	!
561	!-- Set pt_init and q_init to the current profiles taken from
562	!-- NUDGING_DATA
563	IF ( nudging ) THEN
564	CALL nudge_ref ( simulated_time )
565	!
566	!-- Store temperature gradient at the top boundary for possible Neumann
567	!-- boundary condition
568	bc_pt_t_val = ( pt_init(nzt+1) - pt_init(nzt) ) / dzu(nzt+1)
569	bc_q_t_val = ( q_init(nzt+1) - q_init(nzt) ) / dzu(nzt+1)
570	IF ( air_chemistry ) THEN
571	DO lsp = 1, nvar
572	bc_cs_t_val = ( chem_species(lsp)%conc_pr_init(nzt+1) &
573	- chem_species(lsp)%conc_pr_init(nzt) ) &
574	/ dzu(nzt+1)
575	ENDDO
576	ENDIF
577	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
578	DO ib = 1, nbins_aerosol
579	bc_an_t_val = ( aerosol_number(ib)%init(nzt+1) - aerosol_number(ib)%init(nzt) ) / &
580	dzu(nzt+1)
581	DO ic = 1, ncomponents_mass
582	icc = ( ic - 1 ) * nbins_aerosol + ib
583	bc_am_t_val = ( aerosol_mass(icc)%init(nzt+1) - aerosol_mass(icc)%init(nzt) ) /&
584	dzu(nzt+1)
585	ENDDO
586	ENDDO
587	IF ( .NOT. salsa_gases_from_chem ) THEN
588	DO ig = 1, ngases_salsa
589	bc_gt_t_val = ( salsa_gas(ig)%init(nzt+1) - salsa_gas(ig)%init(nzt) ) / &
590	dzu(nzt+1)
591	ENDDO
592	ENDIF
593	ENDIF
594	ENDIF
595	!
596	!-- Input of boundary data.
597	IF ( nesting_offline ) CALL nesting_offl_input
598	!
599	!-- Execute all other module actions routines
600	CALL module_interface_actions( 'before_timestep' )
601
602	!
603	!-- Start of intermediate step loop
604	intermediate_timestep_count = 0
605	DO WHILE ( intermediate_timestep_count < intermediate_timestep_count_max )
606
607	intermediate_timestep_count = intermediate_timestep_count + 1
608
609	!
610	!-- Set the steering factors for the prognostic equations which depend
611	!-- on the timestep scheme
612	CALL timestep_scheme_steering
613
614	!
615	!-- Calculate those variables needed in the tendency terms which need
616	!-- global communication
617	IF ( .NOT. use_single_reference_value .AND. .NOT. use_initial_profile_as_reference ) &
618	THEN
619	!
620	!-- Horizontally averaged profiles to be used as reference state in
621	!-- buoyancy terms (WARNING: only the respective last call of
622	!-- calc_mean_profile defines the reference state!)
623	IF ( .NOT. neutral ) THEN
624	CALL calc_mean_profile( pt, 4 )
625	ref_state(:) = hom(:,1,4,0) ! this is used in the buoyancy term
626	ENDIF
627	IF ( ocean_mode ) THEN
628	CALL calc_mean_profile( rho_ocean, 64 )
629	ref_state(:) = hom(:,1,64,0)
630	ENDIF
631	IF ( humidity ) THEN
632	CALL calc_mean_profile( vpt, 44 )
633	ref_state(:) = hom(:,1,44,0)
634	ENDIF
635	!
636	!-- Assure that ref_state does not become zero at any level
637	!-- ( might be the case if a vertical level is completely occupied
638	!-- with topography ).
639	ref_state = MERGE( MAXVAL(ref_state), ref_state, ref_state == 0.0_wp )
640	ENDIF
641
642	IF ( ( ws_scheme_mom .OR. ws_scheme_sca ) .AND. intermediate_timestep_count == 1 ) &
643	THEN
644	CALL ws_statistics
645	ENDIF
646	!
647	!-- In case of nudging calculate current nudging time scale and horizontal
648	!-- means of u, v, pt and q
649	IF ( nudging ) THEN
650	CALL calc_tnudge( simulated_time )
651	CALL calc_mean_profile( u, 1 )
652	CALL calc_mean_profile( v, 2 )
653	CALL calc_mean_profile( pt, 4 )
654	CALL calc_mean_profile( q, 41 )
655	ENDIF
656	!
657	!-- Execute all other module actions routunes
658	CALL module_interface_actions( 'before_prognostic_equations' )
659	!
660	!-- Solve the prognostic equations. A fast cache optimized version with
661	!-- only one single loop is used in case of Piascek-Williams advection
662	!-- scheme. NEC vector machines use a different version, because
663	!-- in the other versions a good vectorization is prohibited due to
664	!-- inlining problems.
665	IF ( loop_optimization == 'cache' ) THEN
666	CALL prognostic_equations_cache
667	ELSEIF ( loop_optimization == 'vector' ) THEN
668	CALL prognostic_equations_vector
669	ENDIF
670	!
671	!-- Movement of agents in multi agent system
672	IF ( agents_active .AND. time_since_reference_point >= multi_agent_system_start .AND. &
673	time_since_reference_point <= multi_agent_system_end .AND. &
674	intermediate_timestep_count == 1 ) &
675	THEN
676	CALL multi_agent_system
677	first_call_mas = .FALSE.
678	ENDIF
679
680	!
681	!-- Exchange of ghost points (lateral boundary conditions)
682	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'start' )
683
684	CALL exchange_horiz( u_p, nbgp )
685	CALL exchange_horiz( v_p, nbgp )
686	CALL exchange_horiz( w_p, nbgp )
687	CALL exchange_horiz( pt_p, nbgp )
688	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
689	IF ( rans_tke_e .OR. wang_kernel .OR. collision_turbulence &
690	.OR. use_sgs_for_particles ) THEN
691	IF ( rans_tke_e ) THEN
692	CALL exchange_horiz( diss_p, nbgp )
693	ELSE
694	CALL exchange_horiz( diss, nbgp )
695	ENDIF
696	ENDIF
697	IF ( ocean_mode ) THEN
698	CALL exchange_horiz( sa_p, nbgp )
699	CALL exchange_horiz( rho_ocean, nbgp )
700	CALL exchange_horiz( prho, nbgp )
701	ENDIF
702	IF ( humidity ) THEN
703	CALL exchange_horiz( q_p, nbgp )
704	IF ( bulk_cloud_model .AND. microphysics_morrison ) THEN
705	CALL exchange_horiz( qc_p, nbgp )
706	CALL exchange_horiz( nc_p, nbgp )
707	ENDIF
708	IF ( bulk_cloud_model .AND. microphysics_seifert ) THEN
709	CALL exchange_horiz( qr_p, nbgp )
710	CALL exchange_horiz( nr_p, nbgp )
711	ENDIF
712	ENDIF
713	IF ( passive_scalar ) CALL exchange_horiz( s_p, nbgp )
714	IF ( air_chemistry ) THEN
715	DO lsp = 1, nvar
716	CALL exchange_horiz( chem_species(lsp)%conc_p, nbgp )
717	ENDDO
718	ENDIF
719
720	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
721	DO ib = 1, nbins_aerosol
722	CALL exchange_horiz( aerosol_number(ib)%conc_p, nbgp )
723	DO ic = 1, ncomponents_mass
724	icc = ( ic - 1 ) * nbins_aerosol + ib
725	CALL exchange_horiz( aerosol_mass(icc)%conc_p, nbgp )
726	ENDDO
727	ENDDO
728	IF ( .NOT. salsa_gases_from_chem ) THEN
729	DO ig = 1, ngases_salsa
730	CALL exchange_horiz( salsa_gas(ig)%conc_p, nbgp )
731	ENDDO
732	ENDIF
733	ENDIF
734	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'stop' )
735
736	!
737	!-- Boundary conditions for the prognostic quantities (except of the
738	!-- velocities at the outflow in case of a non-cyclic lateral wall) and
739	!-- boundary conditions for module-specific variables
740	CALL module_interface_boundary_conditions
741	!
742	!-- Incrementing timestep counter
743	timestep_count = timestep_count + 1
744
745	CALL cpu_log( log_point(28), 'swap_timelevel', 'start' )
746	!
747	!-- Set the swap level for all modules
748	CALL module_interface_swap_timelevel( MOD( timestep_count, 2) )
749	!
750	!-- Set the swap level for steering the pmc data transfer
751	IF ( nested_run ) CALL pmci_set_swaplevel( MOD( timestep_count, 2) + 1 ) !> @todo: why the +1 ?
752
753	CALL cpu_log( log_point(28), 'swap_timelevel', 'stop' )
754
755	!
756	!-- Vertical nesting: Interpolate fine grid data to the coarse grid
757	IF ( vnest_init ) THEN
758	CALL cpu_log( log_point_s(37), 'vnest_anterpolate', 'start' )
759	CALL vnest_anterpolate
760	CALL cpu_log( log_point_s(37), 'vnest_anterpolate', 'stop' )
761	ENDIF
762
763	IF ( nested_run ) THEN
764
765	CALL cpu_log( log_point(60), 'nesting', 'start' )
766	!
767	!-- Domain nesting. The data transfer subroutines pmci_parent_datatrans
768	!-- and pmci_child_datatrans are called inside the wrapper
769	!-- subroutine pmci_datatrans according to the control parameters
770	!-- nesting_mode and nesting_datatransfer_mode.
771	!-- TO_DO: why is nesting_mode given as a parameter here?
772	CALL pmci_datatrans( nesting_mode )
773
774	IF ( TRIM( nesting_mode ) == 'two-way' .OR. nesting_mode == 'vertical' ) THEN
775
776	CALL cpu_log( log_point_s(92), 'exchange-horiz-nest', 'start' )
777	!
778	!-- Exchange_horiz is needed for all parent-domains after the
779	!-- anterpolation
780	CALL exchange_horiz( u, nbgp )
781	CALL exchange_horiz( v, nbgp )
782	CALL exchange_horiz( w, nbgp )
783	IF ( .NOT. neutral ) CALL exchange_horiz( pt, nbgp )
784
785	IF ( humidity ) THEN
786
787	CALL exchange_horiz( q, nbgp )
788
789	IF ( bulk_cloud_model .AND. microphysics_morrison ) THEN
790	CALL exchange_horiz( qc, nbgp )
791	CALL exchange_horiz( nc, nbgp )
792	ENDIF
793	IF ( bulk_cloud_model .AND. microphysics_seifert ) THEN
794	CALL exchange_horiz( qr, nbgp )
795	CALL exchange_horiz( nr, nbgp )
796	ENDIF
797
798	ENDIF
799
800	IF ( passive_scalar ) CALL exchange_horiz( s, nbgp )
801
802	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e, nbgp )
803
804	IF ( .NOT. constant_diffusion .AND. rans_mode .AND. rans_tke_e ) THEN
805	CALL exchange_horiz( diss, nbgp )
806	ENDIF
807
808	IF ( air_chemistry ) THEN
809	DO n = 1, nvar
810	CALL exchange_horiz( chem_species(n)%conc, nbgp )
811	ENDDO
812	ENDIF
813
814	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
815	DO ib = 1, nbins_aerosol
816	CALL exchange_horiz( aerosol_number(ib)%conc, nbgp )
817	DO ic = 1, ncomponents_mass
818	icc = ( ic - 1 ) * nbins_aerosol + ib
819	CALL exchange_horiz( aerosol_mass(icc)%conc, nbgp )
820	ENDDO
821	ENDDO
822	IF ( .NOT. salsa_gases_from_chem ) THEN
823	DO ig = 1, ngases_salsa
824	CALL exchange_horiz( salsa_gas(ig)%conc, nbgp )
825	ENDDO
826	ENDIF
827	ENDIF
828	CALL cpu_log( log_point_s(92), 'exchange-horiz-nest', 'stop' )
829
830	ENDIF
831
832	!
833	!-- Set boundary conditions again after interpolation and anterpolation.
834	CALL pmci_boundary_conds
835
836	!
837	!-- Set chemistry boundary conditions (decycling)
838	IF ( air_chemistry ) THEN
839	DO lsp = 1, nvar
840	lsp_usr = 1
841	DO WHILE ( TRIM( cs_name( lsp_usr ) ) /= 'novalue' )
842	IF ( TRIM( chem_species(lsp)%name ) == TRIM( cs_name(lsp_usr) ) ) THEN
843	CALL chem_boundary_conds( chem_species(lsp)%conc, &
844	chem_species(lsp)%conc_pr_init )
845	ENDIF
846	lsp_usr = lsp_usr + 1
847	ENDDO
848	ENDDO
849	ENDIF
850
851	!
852	!-- Set SALSA boundary conditions (decycling)
853	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
854	DO ib = 1, nbins_aerosol
855	CALL salsa_boundary_conds( aerosol_number(ib)%conc, aerosol_number(ib)%init )
856	DO ic = 1, ncomponents_mass
857	icc = ( ic - 1 ) * nbins_aerosol + ib
858	CALL salsa_boundary_conds( aerosol_mass(icc)%conc, aerosol_mass(icc)%init )
859	ENDDO
860	ENDDO
861	IF ( .NOT. salsa_gases_from_chem ) THEN
862	DO ig = 1, ngases_salsa
863	CALL salsa_boundary_conds( salsa_gas(ig)%conc, salsa_gas(ig)%init )
864	ENDDO
865	ENDIF
866	ENDIF
867
868	CALL cpu_log( log_point(60), 'nesting', 'stop' )
869
870	ENDIF
871
872	!
873	!-- Temperature offset must be imposed at cyclic boundaries in x-direction
874	!-- when a sloping surface is used
875	IF ( sloping_surface ) THEN
876	IF ( nxl == 0 ) pt(:,:,nxlg:nxl-1) = pt(:,:,nxlg:nxl-1) - pt_slope_offset
877	IF ( nxr == nx ) pt(:,:,nxr+1:nxrg) = pt(:,:,nxr+1:nxrg) + pt_slope_offset
878	ENDIF
879
880	!
881	!-- Impose a turbulent inflow using the recycling method
882	IF ( turbulent_inflow ) CALL inflow_turbulence
883
884	!
885	!-- Set values at outflow boundary using the special outflow condition
886	IF ( turbulent_outflow ) CALL outflow_turbulence
887
888	!
889	!-- Impose a random perturbation on the horizontal velocity field
890	IF ( create_disturbances .AND. ( call_psolver_at_all_substeps .AND. &
891	intermediate_timestep_count == intermediate_timestep_count_max ) &
892	.OR. ( .NOT. call_psolver_at_all_substeps .AND. intermediate_timestep_count == 1 ) ) &
893	THEN
894	time_disturb = time_disturb + dt_3d
895	IF ( time_disturb >= dt_disturb ) THEN
896	IF ( disturbance_energy_limit /= 0.0_wp .AND. &
897	hom(nzb+5,1,pr_palm,0) < disturbance_energy_limit ) THEN
898	CALL disturb_field( 'u', tend, u )
899	CALL disturb_field( 'v', tend, v )
900	ELSEIF ( ( .NOT. bc_lr_cyc .OR. .NOT. bc_ns_cyc ) &
901	.AND. .NOT. child_domain .AND. .NOT. nesting_offline ) &
902	THEN
903	!
904	!-- Runs with a non-cyclic lateral wall need perturbations
905	!-- near the inflow throughout the whole simulation
906	dist_range = 1
907	CALL disturb_field( 'u', tend, u )
908	CALL disturb_field( 'v', tend, v )
909	dist_range = 0
910	ENDIF
911	time_disturb = time_disturb - dt_disturb
912	ENDIF
913	ENDIF
914
915	!
916	!-- Map forcing data derived from larger scale model onto domain
917	!-- boundaries. Further, update geostrophic wind components.
918	IF ( nesting_offline .AND. intermediate_timestep_count == &
919	intermediate_timestep_count_max ) THEN
920	!-- Determine interpolation factor before boundary conditions and geostrophic wind
921	!-- is updated.
922	CALL nesting_offl_interpolation_factor
923	CALL nesting_offl_bc
924	CALL nesting_offl_geostrophic_wind
925	ENDIF
926	!
927	!-- Impose a turbulent inflow using synthetic generated turbulence.
928	IF ( use_syn_turb_gen .AND. &
929	intermediate_timestep_count == intermediate_timestep_count_max ) THEN
930	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'start' )
931	CALL stg_main
932	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'stop' )
933	ENDIF
934	!
935	!-- Ensure mass conservation. This need to be done after imposing
936	!-- synthetic turbulence and top boundary condition for pressure is set to
937	!-- Neumann conditions.
938	!-- Is this also required in case of Dirichlet?
939	IF ( nesting_offline ) CALL nesting_offl_mass_conservation
940	!
941	!-- Reduce the velocity divergence via the equation for perturbation
942	!-- pressure.
943	IF ( intermediate_timestep_count == 1 .OR. &
944	call_psolver_at_all_substeps ) THEN
945
946	IF ( vnest_init ) THEN
947	!
948	!-- Compute pressure in the CG, interpolate top boundary conditions
949	!-- to the FG and then compute pressure in the FG
950	IF ( coupling_mode == 'vnested_crse' ) CALL pres
951
952	CALL cpu_log( log_point_s(30), 'vnest_bc', 'start' )
953	CALL vnest_boundary_conds
954	CALL cpu_log( log_point_s(30), 'vnest_bc', 'stop' )
955
956	IF ( coupling_mode == 'vnested_fine' ) CALL pres
957
958	!-- Anterpolate TKE, satisfy Germano Identity
959	CALL cpu_log( log_point_s(28), 'vnest_anter_e', 'start' )
960	CALL vnest_anterpolate_e
961	CALL cpu_log( log_point_s(28), 'vnest_anter_e', 'stop' )
962
963	ELSE
964	!
965	!-- Mass (volume) flux correction to ensure global mass conservation for child domains.
966	IF ( child_domain ) THEN
967	IF ( nesting_mode == 'vertical' ) THEN
968	CALL pmci_ensure_nest_mass_conservation_vertical
969	ELSE
970	CALL pmci_ensure_nest_mass_conservation
971	ENDIF
972	ENDIF
973
974	CALL pres
975
976	ENDIF
977
978	ENDIF
979	!
980	!-- Particle transport/physics with the Lagrangian particle model
981	!-- (only once during intermediate steps, because it uses an Euler-step)
982	!-- ### particle model should be moved before prognostic_equations, in order
983	!-- to regard droplet interactions directly
984
985	CALL module_interface_actions( 'after_pressure_solver' )
986	!
987	!-- Interaction of droplets with temperature and mixing ratio.
988	!-- Droplet condensation and evaporation is calculated within
989	!-- advec_particles.
990	!
991	!-- If required, compute liquid water content
992	IF ( bulk_cloud_model ) THEN
993	CALL calc_liquid_water_content
994	ENDIF
995	!
996	!-- If required, compute virtual potential temperature
997	IF ( humidity ) THEN
998	CALL compute_vpt
999	ENDIF
1000
1001	!
1002	!-- Compute the diffusion quantities
1003	IF ( .NOT. constant_diffusion ) THEN
1004
1005	!
1006	!-- Determine surface fluxes shf and qsws and surface values
1007	!-- pt_surface and q_surface in dependence on data from external
1008	!-- file LSF_DATA respectively
1009	IF ( ( large_scale_forcing .AND. lsf_surf ) .AND. &
1010	intermediate_timestep_count == intermediate_timestep_count_max ) &
1011	THEN
1012	CALL ls_forcing_surf( simulated_time )
1013	ENDIF
1014
1015	!
1016	!-- First the vertical (and horizontal) fluxes in the surface
1017	!-- (constant flux) layer are computed
1018	IF ( constant_flux_layer ) THEN
1019	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'start' )
1020	CALL surface_layer_fluxes
1021	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'stop' )
1022	ENDIF
1023	!
1024	!-- If required, solve the energy balance for the surface and run soil
1025	!-- model. Call for horizontal as well as vertical surfaces
1026	IF ( land_surface .AND. time_since_reference_point >= skip_time_do_lsm) THEN
1027
1028	CALL cpu_log( log_point(54), 'land_surface', 'start' )
1029	!
1030	!-- Call for horizontal upward-facing surfaces
1031	CALL lsm_energy_balance( .TRUE., -1 )
1032	CALL lsm_soil_model( .TRUE., -1, .TRUE. )
1033	!
1034	!-- Call for northward-facing surfaces
1035	CALL lsm_energy_balance( .FALSE., 0 )
1036	CALL lsm_soil_model( .FALSE., 0, .TRUE. )
1037	!
1038	!-- Call for southward-facing surfaces
1039	CALL lsm_energy_balance( .FALSE., 1 )
1040	CALL lsm_soil_model( .FALSE., 1, .TRUE. )
1041	!
1042	!-- Call for eastward-facing surfaces
1043	CALL lsm_energy_balance( .FALSE., 2 )
1044	CALL lsm_soil_model( .FALSE., 2, .TRUE. )
1045	!
1046	!-- Call for westward-facing surfaces
1047	CALL lsm_energy_balance( .FALSE., 3 )
1048	CALL lsm_soil_model( .FALSE., 3, .TRUE. )
1049
1050	!
1051	!-- At the end, set boundary conditons for potential temperature
1052	!-- and humidity after running the land-surface model. This
1053	!-- might be important for the nesting, where arrays are transfered.
1054	CALL lsm_boundary_condition
1055
1056
1057	CALL cpu_log( log_point(54), 'land_surface', 'stop' )
1058	ENDIF
1059	!
1060	!-- If required, solve the energy balance for urban surfaces and run
1061	!-- the material heat model
1062	IF (urban_surface) THEN
1063	CALL cpu_log( log_point(74), 'urban_surface', 'start' )
1064
1065	CALL usm_surface_energy_balance( .FALSE. )
1066	IF ( usm_material_model ) THEN
1067	CALL usm_green_heat_model
1068	CALL usm_material_heat_model ( .FALSE. )
1069	ENDIF
1070
1071	!
1072	!-- At the end, set boundary conditons for potential temperature
1073	!-- and humidity after running the urban-surface model. This
1074	!-- might be important for the nesting, where arrays are transfered.
1075	CALL usm_boundary_condition
1076
1077	CALL cpu_log( log_point(74), 'urban_surface', 'stop' )
1078	ENDIF
1079	!
1080	!-- Compute the diffusion coefficients
1081	CALL cpu_log( log_point(17), 'diffusivities', 'start' )
1082	IF ( .NOT. humidity ) THEN
1083	IF ( ocean_mode ) THEN
1084	CALL tcm_diffusivities( prho, prho_reference )
1085	ELSE
1086	CALL tcm_diffusivities( pt, pt_reference )
1087	ENDIF
1088	ELSE
1089	CALL tcm_diffusivities( vpt, pt_reference )
1090	ENDIF
1091	CALL cpu_log( log_point(17), 'diffusivities', 'stop' )
1092	!
1093	!-- Vertical nesting: set fine grid eddy viscosity top boundary condition
1094	IF ( vnest_init ) CALL vnest_boundary_conds_khkm
1095
1096	ENDIF
1097
1098	ENDDO ! Intermediate step loop
1099
1100	!
1101	!-- Will be used at some point by flow_statistics.
1102	!$ACC UPDATE &
1103	!$ACC HOST(sums_l_l(nzb:nzt+1,0:statistic_regions,0)) &
1104	!$ACC HOST(sums_us2_ws_l(nzb:nzt+1,0)) &
1105	!$ACC HOST(sums_wsus_ws_l(nzb:nzt+1,0)) &
1106	!$ACC HOST(sums_vs2_ws_l(nzb:nzt+1,0)) &
1107	!$ACC HOST(sums_wsvs_ws_l(nzb:nzt+1,0)) &
1108	!$ACC HOST(sums_ws2_ws_l(nzb:nzt+1,0)) &
1109	!$ACC HOST(sums_wspts_ws_l(nzb:nzt+1,0)) &
1110	!$ACC HOST(sums_wssas_ws_l(nzb:nzt+1,0)) &
1111	!$ACC HOST(sums_wsqs_ws_l(nzb:nzt+1,0)) &
1112	!$ACC HOST(sums_wsqcs_ws_l(nzb:nzt+1,0)) &
1113	!$ACC HOST(sums_wsqrs_ws_l(nzb:nzt+1,0)) &
1114	!$ACC HOST(sums_wsncs_ws_l(nzb:nzt+1,0)) &
1115	!$ACC HOST(sums_wsnrs_ws_l(nzb:nzt+1,0)) &
1116	!$ACC HOST(sums_wsss_ws_l(nzb:nzt+1,0)) &
1117	!$ACC HOST(sums_salsa_ws_l(nzb:nzt+1,0))
1118
1119	!
1120	!-- If required, calculate radiative fluxes and heating rates
1121	IF ( radiation .AND. time_since_reference_point > skip_time_do_radiation ) THEN
1122
1123	time_radiation = time_radiation + dt_3d
1124
1125	IF ( time_radiation >= dt_radiation .OR. force_radiation_call ) THEN
1126
1127	CALL cpu_log( log_point(50), 'radiation', 'start' )
1128
1129	IF ( .NOT. force_radiation_call ) THEN
1130	time_radiation = time_radiation - dt_radiation
1131	ENDIF
1132
1133	!
1134	!-- Adjust the current time to the time step of the radiation model.
1135	!-- Needed since radiation is pre-calculated and stored only on apparent
1136	!-- solar positions
1137	time_since_reference_point_save = time_since_reference_point
1138	time_since_reference_point = REAL( FLOOR( time_since_reference_point / &
1139	dt_radiation ), wp ) * dt_radiation
1140
1141	CALL radiation_control
1142
1143	IF ( ( urban_surface .OR. land_surface ) .AND. radiation_interactions ) THEN
1144	CALL cpu_log( log_point_s(46), 'radiation_interaction', 'start' )
1145	CALL radiation_interaction
1146	CALL cpu_log( log_point_s(46), 'radiation_interaction', 'stop' )
1147	ENDIF
1148
1149	!
1150	!-- Return the current time to its original value
1151	time_since_reference_point = time_since_reference_point_save
1152
1153	CALL cpu_log( log_point(50), 'radiation', 'stop' )
1154
1155	ENDIF
1156	ENDIF
1157
1158	!
1159	!-- If required, consider chemical emissions
1160	IF ( air_chemistry .AND. emissions_anthropogenic ) THEN
1161	!
1162	!-- Call emission routine only once an hour
1163	!> @todo Move check of hour_call_emis into chem_emissions_setup
1164	CALL get_date_time( time_since_reference_point, hour=hour )
1165	IF ( hour_call_emis /= hour ) THEN
1166	!> @question Which of these two if-statements is correct?
1167	! IF ( hour_of_year > hour_call_emis ) THEN
1168	CALL chem_emissions_setup( chem_emis_att, chem_emis, n_matched_vars )
1169	hour_call_emis = hour
1170	ENDIF
1171	ENDIF
1172	!
1173	!-- If required, consider aerosol emissions for the salsa model
1174	IF ( salsa ) THEN
1175	!
1176	!-- Call emission routine to update emissions if needed
1177	CALL salsa_emission_update
1178
1179	ENDIF
1180	!
1181	!-- If required, calculate indoor temperature, waste heat, heat flux
1182	!-- through wall, etc.
1183	!-- dt_indoor steers the frequency of the indoor model calculations.
1184	!-- Note, at first timestep indoor model is called, in order to provide
1185	!-- a waste heat flux.
1186	IF ( indoor_model ) THEN
1187
1188	time_indoor = time_indoor + dt_3d
1189
1190	IF ( time_indoor >= dt_indoor .OR. current_timestep_number == 0 ) THEN
1191
1192	time_indoor = time_indoor - dt_indoor
1193
1194	CALL cpu_log( log_point(76), 'indoor_model', 'start' )
1195	CALL im_main_heatcool
1196	CALL cpu_log( log_point(76), 'indoor_model', 'stop' )
1197
1198	ENDIF
1199	ENDIF
1200	!
1201	!-- Increase simulation time and output times
1202	nr_timesteps_this_run = nr_timesteps_this_run + 1
1203	current_timestep_number = current_timestep_number + 1
1204	simulated_time = simulated_time + dt_3d
1205	time_since_reference_point = simulated_time - coupling_start_time
1206	simulated_time_chr = time_to_string( time_since_reference_point )
1207
1208
1209	IF ( time_since_reference_point >= skip_time_data_output_av ) THEN
1210	time_do_av = time_do_av + dt_3d
1211	ENDIF
1212	IF ( time_since_reference_point >= skip_time_do2d_xy ) THEN
1213	time_do2d_xy = time_do2d_xy + dt_3d
1214	ENDIF
1215	IF ( time_since_reference_point >= skip_time_do2d_xz ) THEN
1216	time_do2d_xz = time_do2d_xz + dt_3d
1217	ENDIF
1218	IF ( time_since_reference_point >= skip_time_do2d_yz ) THEN
1219	time_do2d_yz = time_do2d_yz + dt_3d
1220	ENDIF
1221	IF ( time_since_reference_point >= skip_time_do3d ) THEN
1222	time_do3d = time_do3d + dt_3d
1223	ENDIF
1224	DO mid = 1, masks
1225	IF ( time_since_reference_point >= skip_time_domask(mid) ) THEN
1226	time_domask(mid)= time_domask(mid) + dt_3d
1227	ENDIF
1228	ENDDO
1229	IF ( time_since_reference_point >= skip_time_dosp ) THEN
1230	time_dosp = time_dosp + dt_3d
1231	ENDIF
1232	time_dots = time_dots + dt_3d
1233	IF ( .NOT. first_call_lpm ) THEN
1234	time_dopts = time_dopts + dt_3d
1235	ENDIF
1236	IF ( time_since_reference_point >= skip_time_dopr ) THEN
1237	time_dopr = time_dopr + dt_3d
1238	ENDIF
1239	time_dopr_listing = time_dopr_listing + dt_3d
1240	time_run_control = time_run_control + dt_3d
1241	!
1242	!-- Increment time-counter for surface output
1243	IF ( surface_output ) THEN
1244	IF ( time_since_reference_point >= skip_time_dosurf ) THEN
1245	time_dosurf = time_dosurf + dt_3d
1246	ENDIF
1247	IF ( time_since_reference_point >= skip_time_dosurf_av ) THEN
1248	time_dosurf_av = time_dosurf_av + dt_3d
1249	ENDIF
1250	ENDIF
1251	!
1252	!-- Increment time-counter for virtual measurements
1253	IF ( virtual_measurement .AND. vm_time_start <= time_since_reference_point ) THEN
1254	time_virtual_measurement = time_virtual_measurement + dt_3d
1255	ENDIF
1256	!
1257	!-- In case of synthetic turbulence generation and parametrized turbulence
1258	!-- information, update the time counter and if required, adjust the
1259	!-- STG to new atmospheric conditions.
1260	IF ( use_syn_turb_gen ) THEN
1261	IF ( parametrize_inflow_turbulence ) THEN
1262	time_stg_adjust = time_stg_adjust + dt_3d
1263	IF ( time_stg_adjust >= dt_stg_adjust ) THEN
1264	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'start' )
1265	CALL stg_adjust
1266	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'stop' )
1267	ENDIF
1268	ENDIF
1269	time_stg_call = time_stg_call + dt_3d
1270	ENDIF
1271
1272	!
1273	!-- Data exchange between coupled models
1274	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled .AND. .NOT. vnested ) THEN
1275	time_coupling = time_coupling + dt_3d
1276
1277	!
1278	!-- In case of model termination initiated by the local model
1279	!-- (terminate_coupled > 0), the coupler must be skipped because it would
1280	!-- cause an MPI intercomminucation hang.
1281	!-- If necessary, the coupler will be called at the beginning of the
1282	!-- next restart run.
1283	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
1284	CALL surface_coupler
1285	time_coupling = time_coupling - dt_coupling
1286	ENDDO
1287	ENDIF
1288
1289	!
1290	!-- Biometeorology calculation of stationary thermal indices
1291	!-- Todo (kanani): biometeorology needs own time_... treatment.
1292	!-- It might be that time_do2d_xy differs from time_do3d,
1293	!-- and then we might get trouble with the biomet output,
1294	!-- because we can have 2d and/or 3d biomet output!!
1295	IF ( biometeorology &
1296	.AND. ( ( time_do3d >= dt_do3d .AND. time_since_reference_point >= skip_time_do3d ) &
1297	.OR. &
1298	( time_do2d_xy >= dt_do2d_xy .AND. time_since_reference_point >= skip_time_do2d_xy ) &
1299	) ) THEN
1300	!
1301	!-- If required, do thermal comfort calculations
1302	IF ( thermal_comfort ) THEN
1303	CALL bio_calculate_thermal_index_maps ( .FALSE. )
1304	ENDIF
1305	!
1306	!-- If required, do UV exposure calculations
1307	IF ( uv_exposure ) THEN
1308	CALL bio_calculate_uv_exposure
1309	ENDIF
1310	ENDIF
1311
1312	!
1313	!-- Execute alle other module actions routunes
1314	CALL module_interface_actions( 'after_integration' )
1315
1316	!
1317	!-- If Galilei transformation is used, determine the distance that the
1318	!-- model has moved so far
1319	IF ( galilei_transformation ) THEN
1320	advected_distance_x = advected_distance_x + u_gtrans * dt_3d
1321	advected_distance_y = advected_distance_y + v_gtrans * dt_3d
1322	ENDIF
1323
1324	!
1325	!-- Check, if restart is necessary (because cpu-time is expiring or
1326	!-- because it is forced by user) and set stop flag
1327	!-- This call is skipped if the remote model has already initiated a restart.
1328	IF ( .NOT. terminate_run ) CALL check_for_restart
1329
1330	!
1331	!-- Carry out statistical analysis and output at the requested output times.
1332	!-- The MOD function is used for calculating the output time counters (like
1333	!-- time_dopr) in order to regard a possible decrease of the output time
1334	!-- interval in case of restart runs
1335
1336	!
1337	!-- Set a flag indicating that so far no statistics have been created
1338	!-- for this time step
1339	flow_statistics_called = .FALSE.
1340
1341	!
1342	!-- If required, call flow_statistics for averaging in time
1343	IF ( averaging_interval_pr /= 0.0_wp .AND. &
1344	( dt_dopr - time_dopr ) <= averaging_interval_pr .AND. &
1345	time_since_reference_point >= skip_time_dopr ) THEN
1346	time_dopr_av = time_dopr_av + dt_3d
1347	IF ( time_dopr_av >= dt_averaging_input_pr ) THEN
1348	do_sum = .TRUE.
1349	time_dopr_av = MOD( time_dopr_av, MAX( dt_averaging_input_pr, dt_3d ) )
1350	ENDIF
1351	ENDIF
1352	IF ( do_sum ) CALL flow_statistics
1353
1354	!
1355	!-- Sum-up 3d-arrays for later output of time-averaged 2d/3d/masked data
1356	IF ( averaging_interval /= 0.0_wp .AND. &
1357	( dt_data_output_av - time_do_av ) <= averaging_interval .AND. &
1358	time_since_reference_point >= skip_time_data_output_av ) &
1359	THEN
1360	time_do_sla = time_do_sla + dt_3d
1361	IF ( time_do_sla >= dt_averaging_input ) THEN
1362	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1363	CALL doq_calculate
1364
1365	CALL sum_up_3d_data
1366	average_count_3d = average_count_3d + 1
1367	time_do_sla = MOD( time_do_sla, MAX( dt_averaging_input, dt_3d ) )
1368	ENDIF
1369	ENDIF
1370	!
1371	!-- Average surface data
1372	IF ( surface_output ) THEN
1373	IF ( averaging_interval_surf /= 0.0_wp &
1374	.AND. ( dt_dosurf_av - time_dosurf_av ) <= averaging_interval_surf &
1375	.AND. time_since_reference_point >= skip_time_dosurf_av ) THEN
1376	IF ( time_dosurf_av >= dt_averaging_input ) THEN
1377	CALL surface_data_output_averaging
1378	average_count_surf = average_count_surf + 1
1379	ENDIF
1380	ENDIF
1381	ENDIF
1382
1383	!
1384	!-- Calculate spectra for time averaging
1385	IF ( averaging_interval_sp /= 0.0_wp .AND. ( dt_dosp - time_dosp ) <= averaging_interval_sp&
1386	.AND. time_since_reference_point >= skip_time_dosp ) THEN
1387	time_dosp_av = time_dosp_av + dt_3d
1388	IF ( time_dosp_av >= dt_averaging_input_pr ) THEN
1389	CALL calc_spectra
1390	time_dosp_av = MOD( time_dosp_av, MAX( dt_averaging_input_pr, dt_3d ) )
1391	ENDIF
1392	ENDIF
1393
1394	!
1395	!-- Call flight module and output data
1396	IF ( virtual_flight ) THEN
1397	CALL flight_measurement
1398	CALL data_output_flight
1399	ENDIF
1400	!
1401	!-- Take virtual measurements
1402	IF ( virtual_measurement .AND. time_virtual_measurement >= dt_virtual_measurement &
1403	.AND. vm_time_start <= time_since_reference_point ) THEN
1404	CALL vm_sampling
1405	CALL vm_data_output
1406	time_virtual_measurement = MOD( time_virtual_measurement, &
1407	MAX( dt_virtual_measurement, dt_3d ) )
1408	ENDIF
1409	!
1410	!-- Profile output (ASCII) on file
1411	IF ( time_dopr_listing >= dt_dopr_listing ) THEN
1412	CALL print_1d
1413	time_dopr_listing = MOD( time_dopr_listing, MAX( dt_dopr_listing, dt_3d ) )
1414	ENDIF
1415
1416	!
1417	!-- Graphic output for PROFIL
1418	IF ( time_dopr >= dt_dopr .AND. time_since_reference_point >= skip_time_dopr ) THEN
1419	IF ( dopr_n /= 0 ) CALL data_output_profiles
1420	time_dopr = MOD( time_dopr, MAX( dt_dopr, dt_3d ) )
1421	time_dopr_av = 0.0_wp ! due to averaging (see above)
1422	ENDIF
1423
1424	!
1425	!-- Graphic output for time series
1426	IF ( time_dots >= dt_dots ) THEN
1427	CALL data_output_tseries
1428	time_dots = MOD( time_dots, MAX( dt_dots, dt_3d ) )
1429	ENDIF
1430
1431	!
1432	!-- Output of spectra (formatted for use with PROFIL), in case of no
1433	!-- time averaging, spectra has to be calculated before
1434	IF ( time_dosp >= dt_dosp .AND. time_since_reference_point >= skip_time_dosp ) THEN
1435	IF ( average_count_sp == 0 ) CALL calc_spectra
1436	CALL data_output_spectra
1437	time_dosp = MOD( time_dosp, MAX( dt_dosp, dt_3d ) )
1438	ENDIF
1439
1440	!
1441	!-- 2d-data output (cross-sections)
1442	IF ( time_do2d_xy >= dt_do2d_xy .AND. time_since_reference_point >= skip_time_do2d_xy ) THEN
1443	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1444	CALL doq_calculate
1445
1446	CALL data_output_2d( 'xy', 0 )
1447	time_do2d_xy = MOD( time_do2d_xy, MAX( dt_do2d_xy, dt_3d ) )
1448	ENDIF
1449	IF ( time_do2d_xz >= dt_do2d_xz .AND. time_since_reference_point >= skip_time_do2d_xz ) THEN
1450	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1451
1452	CALL doq_calculate
1453	CALL data_output_2d( 'xz', 0 )
1454	time_do2d_xz = MOD( time_do2d_xz, MAX( dt_do2d_xz, dt_3d ) )
1455	ENDIF
1456	IF ( time_do2d_yz >= dt_do2d_yz .AND. time_since_reference_point >= skip_time_do2d_yz ) THEN
1457	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1458	CALL doq_calculate
1459
1460	CALL data_output_2d( 'yz', 0 )
1461	time_do2d_yz = MOD( time_do2d_yz, MAX( dt_do2d_yz, dt_3d ) )
1462	ENDIF
1463
1464	!
1465	!-- 3d-data output (volume data)
1466	IF ( time_do3d >= dt_do3d .AND. time_since_reference_point >= skip_time_do3d ) THEN
1467	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1468	CALL doq_calculate
1469
1470	CALL data_output_3d( 0 )
1471	time_do3d = MOD( time_do3d, MAX( dt_do3d, dt_3d ) )
1472	ENDIF
1473
1474	!
1475	!-- Masked data output
1476	DO mid = 1, masks
1477	IF ( time_domask(mid) >= dt_domask(mid) &
1478	.AND. time_since_reference_point >= skip_time_domask(mid) ) THEN
1479	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1480	CALL doq_calculate
1481
1482	CALL data_output_mask( 0, mid )
1483	time_domask(mid) = MOD( time_domask(mid), MAX( dt_domask(mid), dt_3d ) )
1484	ENDIF
1485	ENDDO
1486
1487	!
1488	!-- Output of time-averaged 2d/3d/masked data
1489	IF ( time_do_av >= dt_data_output_av &
1490	.AND. time_since_reference_point >= skip_time_data_output_av ) THEN
1491	CALL average_3d_data
1492	!
1493	!-- Udate thermal comfort indices based on updated averaged input
1494	IF ( biometeorology .AND. thermal_comfort ) THEN
1495	CALL bio_calculate_thermal_index_maps ( .TRUE. )
1496	ENDIF
1497	CALL data_output_2d( 'xy', 1 )
1498	CALL data_output_2d( 'xz', 1 )
1499	CALL data_output_2d( 'yz', 1 )
1500	CALL data_output_3d( 1 )
1501	DO mid = 1, masks
1502	CALL data_output_mask( 1, mid )
1503	ENDDO
1504	time_do_av = MOD( time_do_av, MAX( dt_data_output_av, dt_3d ) )
1505	ENDIF
1506	!
1507	!-- Output of surface data, instantaneous and averaged data
1508	IF ( surface_output ) THEN
1509	IF ( time_dosurf >= dt_dosurf .AND. time_since_reference_point >= skip_time_dosurf ) THEN
1510	CALL surface_data_output( 0 )
1511	time_dosurf = MOD( time_dosurf, MAX( dt_dosurf, dt_3d ) )
1512	ENDIF
1513	IF ( time_dosurf_av >= dt_dosurf_av .AND. time_since_reference_point >= skip_time_dosurf_av ) THEN
1514	CALL surface_data_output( 1 )
1515	time_dosurf_av = MOD( time_dosurf_av, MAX( dt_dosurf_av, dt_3d ) )
1516	ENDIF
1517	ENDIF
1518
1519	!
1520	!-- Output of particle time series
1521	IF ( particle_advection ) THEN
1522	IF ( time_dopts >= dt_dopts .OR. &
1523	( time_since_reference_point >= particle_advection_start .AND. &
1524	first_call_lpm ) ) THEN
1525	CALL lpm_data_output_ptseries
1526	time_dopts = MOD( time_dopts, MAX( dt_dopts, dt_3d ) )
1527	ENDIF
1528	ENDIF
1529
1530	!
1531	!-- If required, set the heat flux for the next time step to a random value
1532	IF ( constant_heatflux .AND. random_heatflux ) THEN
1533	IF ( surf_def_h(0)%ns >= 1 ) THEN
1534	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1535	CALL disturb_heatflux( surf_def_h(0) )
1536	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1537	ENDIF
1538	IF ( surf_lsm_h%ns >= 1 ) THEN
1539	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1540	CALL disturb_heatflux( surf_lsm_h )
1541	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1542	ENDIF
1543	IF ( surf_usm_h%ns >= 1 ) THEN
1544	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1545	CALL disturb_heatflux( surf_usm_h )
1546	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1547	ENDIF
1548	ENDIF
1549
1550	!
1551	!-- Execute alle other module actions routunes
1552	CALL module_interface_actions( 'after_timestep' )
1553
1554	!
1555	!-- Determine size of next time step. Save timestep dt_3d because it is
1556	!-- newly calculated in routine timestep, but required further below for
1557	!-- steering the run control output interval
1558	dt_3d_old = dt_3d
1559	CALL timestep
1560
1561	!
1562	!-- Synchronize the timestep in case of nested run.
1563	IF ( nested_run ) THEN
1564	!
1565	!-- Synchronize by unifying the time step.
1566	!-- Global minimum of all time-steps is used for all.
1567	CALL pmci_synchronize
1568	ENDIF
1569
1570	!
1571	!-- Computation and output of run control parameters.
1572	!-- This is also done whenever perturbations have been imposed
1573	IF ( time_run_control >= dt_run_control .OR. &
1574	timestep_scheme(1:5) /= 'runge' .OR. disturbance_created ) &
1575	THEN
1576	CALL run_control
1577	IF ( time_run_control >= dt_run_control ) THEN
1578	time_run_control = MOD( time_run_control, MAX( dt_run_control, dt_3d_old ) )
1579	ENDIF
1580	ENDIF
1581
1582	!
1583	!-- Output elapsed simulated time in form of a progress bar on stdout
1584	IF ( myid == 0 ) CALL output_progress_bar
1585
1586	CALL cpu_log( log_point_s(10), 'timesteps', 'stop' )
1587
1588
1589	ENDDO ! time loop
1590
1591	#if defined( _OPENACC )
1592	CALL exit_surface_arrays
1593	#endif
1594	!$ACC END DATA
1595	!$ACC END DATA
1596	!$ACC END DATA
1597	!$ACC END DATA
1598	!$ACC END DATA
1599	!$ACC END DATA
1600	!$ACC END DATA
1601
1602	!
1603	!-- Vertical nesting: Deallocate variables initialized for vertical nesting
1604	IF ( vnest_init ) CALL vnest_deallocate
1605
1606	IF ( myid == 0 ) CALL finish_progress_bar
1607
1608	CALL location_message( 'atmosphere (and/or ocean) time-stepping', 'finished' )
1609
1610	END SUBROUTINE time_integration

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