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source: palm/trunk/SOURCE/time_integration.f90 @ 4180

Last change on this file since 4180 was 4180, checked in by scharf, 5 years ago
removed comments in 'Former revisions' section that are older than 01.01.2019
Property svn:keywords set to `Id`
File size: 68.5 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 4180 2019-08-21 14:37:54Z scharf $
27	! copy diss, diss_p, tdiss_m to GPU
28	!
29	! 4144 2019-08-06 09:11:47Z raasch
30	! relational operators .EQ., .NE., etc. replaced by ==, /=, etc.
31	!
32	! 4126 2019-07-30 11:09:11Z gronemeier
33	! renamed routine to calculate uv exposure
34	!
35	! 4111 2019-07-22 18:16:57Z suehring
36	! advc_flags_1 / advc_flags_2 renamed to advc_flags_m / advc_flags_s
37	!
38	! 4069 2019-07-01 14:05:51Z Giersch
39	! Masked output running index mid has been introduced as a local variable to
40	! avoid runtime error (Loop variable has been modified) in time_integration
41	!
42	! 4064 2019-07-01 05:33:33Z gronemeier
43	! Moved call to radiation module out of intermediate time loop
44	!
45	! 4048 2019-06-21 21:00:21Z knoop
46	! Moved production_e_init call into turbulence_closure_mod
47	!
48	! 4047 2019-06-21 18:58:09Z knoop
49	! Added remainings of swap_timelevel upon its dissolution
50	!
51	! 4043 2019-06-18 16:59:00Z schwenkel
52	! Further LPM modularization
53	!
54	! 4039 2019-06-18 10:32:41Z suehring
55	! Rename subroutines in module for diagnostic quantities
56	!
57	! 4029 2019-06-14 14:04:35Z raasch
58	! exchange of ghost points and boundary conditions separated for chemical species and SALSA module,
59	! bugfix: decycling of chemistry species after nesting data transfer
60	!
61	! 4022 2019-06-12 11:52:39Z suehring
62	! Call synthetic turbulence generator at last RK3 substep right after boundary
63	! conditions are updated in offline nesting in order to assure that
64	! perturbations are always imposed
65	!
66	! 4017 2019-06-06 12:16:46Z schwenkel
67	! Mass (volume) flux correction included to ensure global mass conservation for child domains.
68	!
69	! 3994 2019-05-22 18:08:09Z suehring
70	! output of turbulence intensity added
71	!
72	! 3988 2019-05-22 11:32:37Z kanani
73	! Implement steerable output interval for virtual measurements
74	!
75	! 3968 2019-05-13 11:04:01Z suehring
76	! replace nspec_out with n_matched_vars
77	!
78	! 3929 2019-04-24 12:52:08Z banzhafs
79	! Reverse changes back from revision 3878: use chem_boundary_conds instead of
80	! chem_boundary_conds_decycle
81	!
82	!
83	! 3885 2019-04-11 11:29:34Z kanani
84	! Changes related to global restructuring of location messages and introduction
85	! of additional debug messages
86	!
87	! 3879 2019-04-08 20:25:23Z knoop
88	! Moved wtm_forces to module_interface_actions
89	!
90	! 3872 2019-04-08 15:03:06Z knoop
91	! Modifications made for salsa:
92	! - Call salsa_emission_update at each time step but do the checks within
93	! salsa_emission_update (i.e. skip_time_do_salsa >= time_since_reference_point
94	! and next_aero_emission_update <= time_since_reference_point ).
95	! - Renamed nbins --> nbins_aerosol, ncc_tot --> ncomponents_mass and
96	! ngast --> ngases_salsa and loop indices b, c and sg to ib, ic and ig
97	! - Apply nesting for salsa variables
98	! - Removed cpu_log calls speciffic for salsa.
99	!
100	! 3833 2019-03-28 15:04:04Z forkel
101	! added USE chem_gasphase_mod, replaced nspec by nspec since fixed compounds are not integrated
102	!
103	! 3820 2019-03-27 11:53:41Z forkel
104	! renamed do_emiss to emissions_anthropogenic (ecc)
105	!
106	!
107	! 3774 2019-03-04 10:52:49Z moh.hefny
108	! rephrase if statement to avoid unallocated array in case of
109	! nesting_offline is false (crashing during debug mode)
110	!
111	! 3761 2019-02-25 15:31:42Z raasch $
112	! module section re-formatted and openacc required variables moved to separate section,
113	! re-formatting to 100 char line width
114	!
115	! 3745 2019-02-15 18:57:56Z suehring
116	! Call indoor model after first timestep
117	!
118	! 3744 2019-02-15 18:38:58Z suehring
119	! - Moved call of bio_calculate_thermal_index_maps from biometeorology module to
120	! time_integration to make sure averaged input is updated before calculating.
121	!
122	! 3739 2019-02-13 08:05:17Z dom_dwd_user
123	! Removed everything related to "time_bio_results" as this is never used.
124	!
125	! 3724 2019-02-06 16:28:23Z kanani
126	! Correct double-used log_point_s unit
127	!
128	! 3719 2019-02-06 13:10:18Z kanani
129	! - removed wind_turbine cpu measurement, since same time is measured inside
130	! wtm_forces subroutine as special measures
131	! - moved the numerous vnest cpulog to special measures
132	! - extended radiation cpulog over entire radiation part,
133	! moved radiation_interactions cpulog to special measures
134	! - moved some cpu_log calls to this routine for better overview
135	!
136	! 3705 2019-01-29 19:56:39Z suehring
137	! Data output for virtual measurements added
138	!
139	! 3704 2019-01-29 19:51:41Z suehring
140	! Rename subroutines for surface-data output
141	!
142	! 3647 2019-01-02 14:10:44Z kanani
143	! Bugfix: add time_since_reference_point to IF clause for data_output calls
144	! (otherwise skip_time_* values don't come into affect with dt_do* = 0.0).
145	! Clean up indoor_model and biometeorology model call.
146	!
147	!
148	! Description:
149	! ------------
150	!> Integration in time of the model equations, statistical analysis and graphic
151	!> output
152	!------------------------------------------------------------------------------!
153	SUBROUTINE time_integration
154
155
156	USE advec_ws, &
157	ONLY: ws_statistics
158
159	USE arrays_3d, &
160	ONLY: diss, diss_p, dzu, e, e_p, nc, nc_p, nr, nr_p, prho, pt, pt_p, pt_init, q_init, q, &
161	qc, qc_p, ql, ql_c, ql_v, ql_vp, qr, qr_p, q_p, ref_state, rho_ocean, s, s_p, sa_p, &
162	tend, u, u_p, v, vpt, v_p, w, w_p
163
164	USE biometeorology_mod, &
165	ONLY: bio_calculate_thermal_index_maps, thermal_comfort, bio_calculate_uv_exposure, &
166	uv_exposure
167
168	USE bulk_cloud_model_mod, &
169	ONLY: bulk_cloud_model, calc_liquid_water_content, collision_turbulence, &
170	microphysics_morrison, microphysics_seifert
171
172	USE calc_mean_profile_mod, &
173	ONLY: calc_mean_profile
174
175	USE chem_emissions_mod, &
176	ONLY: chem_emissions_setup
177
178	USE chem_gasphase_mod, &
179	ONLY: nvar
180
181	USE chem_modules, &
182	ONLY: bc_cs_t_val, chem_species, cs_name, emissions_anthropogenic, n_matched_vars
183
184	USE chemistry_model_mod, &
185	ONLY: chem_boundary_conds
186
187	USE control_parameters, &
188	ONLY: advected_distance_x, advected_distance_y, air_chemistry, average_count_3d, &
189	averaging_interval, averaging_interval_pr, bc_lr_cyc, bc_ns_cyc, bc_pt_t_val, &
190	bc_q_t_val, biometeorology, call_psolver_at_all_substeps, child_domain, &
191	cloud_droplets, constant_flux_layer, constant_heatflux, create_disturbances, &
192	dopr_n, constant_diffusion, coupling_mode, coupling_start_time, &
193	current_timestep_number, disturbance_created, disturbance_energy_limit, dist_range, &
194	do_sum, dt_3d, dt_averaging_input, dt_averaging_input_pr, dt_coupling, &
195	dt_data_output_av, dt_disturb, dt_do2d_xy, dt_do2d_xz, dt_do2d_yz, dt_do3d, &
196	dt_domask,dt_dopts, dt_dopr, dt_dopr_listing, dt_dots, dt_run_control, &
197	end_time, first_call_lpm, first_call_mas, galilei_transformation, humidity, &
198	indoor_model, intermediate_timestep_count, intermediate_timestep_count_max, &
199	land_surface, large_scale_forcing, loop_optimization, lsf_surf, lsf_vert, masks, &
200	multi_agent_system_end, multi_agent_system_start, nesting_offline, neutral, &
201	nr_timesteps_this_run, nudging, ocean_mode, passive_scalar, pt_reference, &
202	pt_slope_offset, random_heatflux, rans_mode, rans_tke_e, run_coupled, salsa, &
203	simulated_time, simulated_time_chr, skip_time_do2d_xy, skip_time_do2d_xz, &
204	skip_time_do2d_yz, skip_time_do3d, skip_time_domask, skip_time_dopr, &
205	skip_time_data_output_av, sloping_surface, stop_dt, surface_output, &
206	terminate_coupled, terminate_run, timestep_scheme, time_coupling, time_do2d_xy, &
207	time_do2d_xz, time_do2d_yz, time_do3d, time_domask, time_dopr, time_dopr_av, &
208	time_dopr_listing, time_dopts, time_dosp, time_dosp_av, time_dots, time_do_av, &
209	time_do_sla, time_disturb, time_run_control, time_since_reference_point, &
210	turbulent_inflow, turbulent_outflow, urban_surface, &
211	use_initial_profile_as_reference, use_single_reference_value, u_gtrans, v_gtrans, &
212	virtual_flight, virtual_measurement, ws_scheme_mom, ws_scheme_sca, timestep_count
213
214	USE cpulog, &
215	ONLY: cpu_log, log_point, log_point_s
216
217	USE date_and_time_mod, &
218	ONLY: calc_date_and_time, hour_call_emis, hour_of_year
219
220	USE diagnostic_output_quantities_mod, &
221	ONLY: doq_calculate, &
222	timestep_number_at_prev_calc
223
224	USE flight_mod, &
225	ONLY: flight_measurement
226
227	USE indices, &
228	ONLY: nbgp, nx, nxl, nxlg, nxr, nxrg, nzb, nzt
229
230	USE indoor_model_mod, &
231	ONLY: dt_indoor, im_main_heatcool, time_indoor
232
233	USE interfaces
234
235	USE kinds
236
237	USE land_surface_model_mod, &
238	ONLY: lsm_boundary_condition, lsm_energy_balance, lsm_soil_model, skip_time_do_lsm
239
240	USE lagrangian_particle_model_mod, &
241	ONLY: lpm_data_output_ptseries, lpm_interaction_droplets_ptq
242
243	USE lsf_nudging_mod, &
244	ONLY: calc_tnudge, ls_forcing_surf, ls_forcing_vert, nudge_ref
245
246	USE module_interface, &
247	ONLY: module_interface_actions, module_interface_swap_timelevel
248
249	USE multi_agent_system_mod, &
250	ONLY: agents_active, multi_agent_system
251
252	USE nesting_offl_mod, &
253	ONLY: nesting_offl_bc, nesting_offl_mass_conservation
254
255	USE netcdf_data_input_mod, &
256	ONLY: chem_emis, chem_emis_att, nest_offl, netcdf_data_input_offline_nesting
257
258	USE ocean_mod, &
259	ONLY: prho_reference
260
261	USE particle_attributes, &
262	ONLY: particle_advection, particle_advection_start, use_sgs_for_particles, wang_kernel
263
264	USE pegrid
265
266	USE pmc_interface, &
267	ONLY: nested_run, nesting_mode, pmci_boundary_conds, pmci_datatrans, pmci_synchronize, &
268	pmci_ensure_nest_mass_conservation, pmci_ensure_nest_mass_conservation_vertical, &
269	pmci_set_swaplevel
270
271	USE progress_bar, &
272	ONLY: finish_progress_bar, output_progress_bar
273
274	USE prognostic_equations_mod, &
275	ONLY: prognostic_equations_cache, prognostic_equations_vector
276
277	USE radiation_model_mod, &
278	ONLY: dt_radiation, force_radiation_call, radiation, radiation_control, &
279	radiation_interaction, radiation_interactions, skip_time_do_radiation, time_radiation
280
281	USE salsa_mod, &
282	ONLY: aerosol_number, aerosol_mass, bc_am_t_val, bc_an_t_val, bc_gt_t_val, &
283	nbins_aerosol, ncomponents_mass, ngases_salsa, salsa_boundary_conds, &
284	salsa_emission_update, salsa_gas, salsa_gases_from_chem, skip_time_do_salsa
285
286	USE spectra_mod, &
287	ONLY: average_count_sp, averaging_interval_sp, calc_spectra, dt_dosp, skip_time_dosp
288
289	USE statistics, &
290	ONLY: flow_statistics_called, hom, pr_palm, sums_ls_l
291
292
293	USE surface_layer_fluxes_mod, &
294	ONLY: surface_layer_fluxes
295
296	USE surface_data_output_mod, &
297	ONLY: average_count_surf, averaging_interval_surf, dt_dosurf, dt_dosurf_av, &
298	surface_data_output, surface_data_output_averaging, skip_time_dosurf, &
299	skip_time_dosurf_av, time_dosurf, time_dosurf_av
300
301	USE surface_mod, &
302	ONLY: surf_def_h, surf_lsm_h, surf_usm_h
303
304	USE synthetic_turbulence_generator_mod, &
305	ONLY: dt_stg_call, dt_stg_adjust, parametrize_inflow_turbulence, stg_adjust, stg_main, &
306	time_stg_adjust, time_stg_call, use_syn_turb_gen
307
308	USE turbulence_closure_mod, &
309	ONLY: tcm_diffusivities
310
311	USE urban_surface_mod, &
312	ONLY: usm_boundary_condition, usm_material_heat_model, usm_material_model, &
313	usm_surface_energy_balance, usm_green_heat_model
314
315	USE vertical_nesting_mod, &
316	ONLY: vnested, vnest_anterpolate, vnest_anterpolate_e, vnest_boundary_conds, &
317	vnest_boundary_conds_khkm, vnest_deallocate, vnest_init, vnest_init_fine, &
318	vnest_start_time
319
320	USE virtual_measurement_mod, &
321	ONLY: dt_virtual_measurement, &
322	time_virtual_measurement, &
323	vm_data_output, &
324	vm_sampling, &
325	vm_time_start
326
327
328	#if defined( _OPENACC )
329	USE arrays_3d, &
330	ONLY: d, dd2zu, ddzu, ddzw, drho_air, drho_air_zw, dzw, heatflux_output_conversion, kh, &
331	km, momentumflux_output_conversion, p, ptdf_x, ptdf_y, rdf, rdf_sc, rho_air, &
332	rho_air_zw, tdiss_m, te_m, tpt_m, tu_m, tv_m, tw_m, ug, u_init, u_stokes_zu, vg, &
333	v_init, v_stokes_zu, zu
334
335	USE control_parameters, &
336	ONLY: tsc
337
338	USE indices, &
339	ONLY: advc_flags_m, advc_flags_s, nyn, nyng, nys, nysg, nz, nzb_max, wall_flags_0
340
341	USE statistics, &
342	ONLY: rmask, statistic_regions, sums_l, sums_l_l, sums_us2_ws_l, &
343	sums_wsus_ws_l, sums_vs2_ws_l, sums_wsvs_ws_l, sums_ws2_ws_l, sums_wspts_ws_l, &
344	sums_wsqs_ws_l, sums_wssas_ws_l, sums_wsqcs_ws_l, sums_wsqrs_ws_l, sums_wsncs_ws_l, &
345	sums_wsnrs_ws_l, sums_wsss_ws_l, weight_substep, sums_salsa_ws_l
346
347	USE surface_mod, &
348	ONLY: bc_h, enter_surface_arrays, exit_surface_arrays
349	#endif
350
351
352	IMPLICIT NONE
353
354	CHARACTER (LEN=9) :: time_to_string !<
355
356	INTEGER(iwp) :: ib !< index for aerosol size bins
357	INTEGER(iwp) :: ic !< index for aerosol mass bins
358	INTEGER(iwp) :: icc !< additional index for aerosol mass bins
359	INTEGER(iwp) :: ig !< index for salsa gases
360	INTEGER(iwp) :: lsp
361	INTEGER(iwp) :: lsp_usr !<
362	INTEGER(iwp) :: mid !< masked output running index
363	INTEGER(iwp) :: n !< loop counter for chemistry species
364
365	REAL(wp) :: dt_3d_old !< temporary storage of timestep to be used for
366	!< steering of run control output interval
367	REAL(wp) :: time_since_reference_point_save !< original value of
368	!< time_since_reference_point
369
370
371	!
372	!-- Copy data from arrays_3d
373	!$ACC DATA &
374	!$ACC COPY(d(nzb+1:nzt,nys:nyn,nxl:nxr)) &
375	!$ACC COPY(diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
376	!$ACC COPY(e(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
377	!$ACC COPY(u(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
378	!$ACC COPY(v(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
379	!$ACC COPY(w(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
380	!$ACC COPY(kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
381	!$ACC COPY(km(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
382	!$ACC COPY(p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
383	!$ACC COPY(pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
384
385	!$ACC DATA &
386	!$ACC COPY(diss_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
387	!$ACC COPY(e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
388	!$ACC COPY(u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
389	!$ACC COPY(v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
390	!$ACC COPY(w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
391	!$ACC COPY(pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
392	!$ACC COPY(tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
393	!$ACC COPY(tdiss_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
394	!$ACC COPY(te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
395	!$ACC COPY(tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
396	!$ACC COPY(tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
397	!$ACC COPY(tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
398	!$ACC COPY(tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
399
400	!$ACC DATA &
401	!$ACC COPYIN(rho_air(nzb:nzt+1), drho_air(nzb:nzt+1)) &
402	!$ACC COPYIN(rho_air_zw(nzb:nzt+1), drho_air_zw(nzb:nzt+1)) &
403	!$ACC COPYIN(zu(nzb:nzt+1)) &
404	!$ACC COPYIN(dzu(1:nzt+1), dzw(1:nzt+1)) &
405	!$ACC COPYIN(ddzu(1:nzt+1), dd2zu(1:nzt)) &
406	!$ACC COPYIN(ddzw(1:nzt+1)) &
407	!$ACC COPYIN(heatflux_output_conversion(nzb:nzt+1)) &
408	!$ACC COPYIN(momentumflux_output_conversion(nzb:nzt+1)) &
409	!$ACC COPYIN(rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt)) &
410	!$ACC COPYIN(ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng)) &
411	!$ACC COPYIN(ref_state(0:nz+1)) &
412	!$ACC COPYIN(u_init(0:nz+1), v_init(0:nz+1)) &
413	!$ACC COPYIN(u_stokes_zu(nzb:nzt+1), v_stokes_zu(nzb:nzt+1)) &
414	!$ACC COPYIN(pt_init(0:nz+1)) &
415	!$ACC COPYIN(ug(0:nz+1), vg(0:nz+1))
416
417	!
418	!-- Copy data from control_parameters
419	!$ACC DATA &
420	!$ACC COPYIN(tsc(1:5))
421
422	!
423	!-- Copy data from indices
424	!$ACC DATA &
425	!$ACC COPYIN(advc_flags_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
426	!$ACC COPYIN(advc_flags_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
427	!$ACC COPYIN(wall_flags_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
428
429	!
430	!-- Copy data from surface_mod
431	!$ACC DATA &
432	!$ACC COPYIN(bc_h(0:1)) &
433	!$ACC COPYIN(bc_h(0)%i(1:bc_h(0)%ns)) &
434	!$ACC COPYIN(bc_h(0)%j(1:bc_h(0)%ns)) &
435	!$ACC COPYIN(bc_h(0)%k(1:bc_h(0)%ns)) &
436	!$ACC COPYIN(bc_h(1)%i(1:bc_h(1)%ns)) &
437	!$ACC COPYIN(bc_h(1)%j(1:bc_h(1)%ns)) &
438	!$ACC COPYIN(bc_h(1)%k(1:bc_h(1)%ns))
439
440	!
441	!-- Copy data from statistics
442	!$ACC DATA &
443	!$ACC COPYIN(hom(0:nz+1,1:2,1:4,0)) &
444	!$ACC COPYIN(rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions)) &
445	!$ACC COPYIN(weight_substep(1:intermediate_timestep_count_max)) &
446	!$ACC COPY(sums_l(nzb:nzt+1,1:pr_palm,0)) &
447	!$ACC COPY(sums_l_l(nzb:nzt+1,0:statistic_regions,0)) &
448	!$ACC COPY(sums_us2_ws_l(nzb:nzt+1,0)) &
449	!$ACC COPY(sums_wsus_ws_l(nzb:nzt+1,0)) &
450	!$ACC COPY(sums_vs2_ws_l(nzb:nzt+1,0)) &
451	!$ACC COPY(sums_wsvs_ws_l(nzb:nzt+1,0)) &
452	!$ACC COPY(sums_ws2_ws_l(nzb:nzt+1,0)) &
453	!$ACC COPY(sums_wspts_ws_l(nzb:nzt+1,0)) &
454	!$ACC COPY(sums_wssas_ws_l(nzb:nzt+1,0)) &
455	!$ACC COPY(sums_wsqs_ws_l(nzb:nzt+1,0)) &
456	!$ACC COPY(sums_wsqcs_ws_l(nzb:nzt+1,0)) &
457	!$ACC COPY(sums_wsqrs_ws_l(nzb:nzt+1,0)) &
458	!$ACC COPY(sums_wsncs_ws_l(nzb:nzt+1,0)) &
459	!$ACC COPY(sums_wsnrs_ws_l(nzb:nzt+1,0)) &
460	!$ACC COPY(sums_wsss_ws_l(nzb:nzt+1,0)) &
461	!$ACC COPY(sums_salsa_ws_l(nzb:nzt+1,0))
462
463	#if defined( _OPENACC )
464	CALL enter_surface_arrays
465	#endif
466
467	!
468	!-- At beginning determine the first time step
469	CALL timestep
470	!
471	!-- Synchronize the timestep in case of nested run.
472	IF ( nested_run ) THEN
473	!
474	!-- Synchronization by unifying the time step.
475	!-- Global minimum of all time-steps is used for all.
476	CALL pmci_synchronize
477	ENDIF
478
479	!
480	!-- Determine and print out the run control quantities before the first time
481	!-- step of this run. For the initial run, some statistics (e.g. divergence)
482	!-- need to be determined first --> CALL flow_statistics at the beginning of
483	!-- run_control
484	CALL run_control
485	!
486	!-- Data exchange between coupled models in case that a call has been omitted
487	!-- at the end of the previous run of a job chain.
488	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled .AND. .NOT. vnested ) THEN
489	!
490	!-- In case of model termination initiated by the local model the coupler
491	!-- must not be called because this would again cause an MPI hang.
492	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
493	CALL surface_coupler
494	time_coupling = time_coupling - dt_coupling
495	ENDDO
496	IF (time_coupling == 0.0_wp .AND. time_since_reference_point < dt_coupling ) THEN
497	time_coupling = time_since_reference_point
498	ENDIF
499	ENDIF
500
501	CALL location_message( 'atmosphere (and/or ocean) time-stepping', 'start' )
502
503	!
504	!-- Start of the time loop
505	DO WHILE ( simulated_time < end_time .AND. .NOT. stop_dt .AND. .NOT. terminate_run )
506
507	CALL cpu_log( log_point_s(10), 'timesteps', 'start' )
508	!
509	!-- Vertical nesting: initialize fine grid
510	IF ( vnested ) THEN
511	IF ( .NOT. vnest_init .AND. simulated_time >= vnest_start_time ) THEN
512	CALL cpu_log( log_point_s(22), 'vnest_init', 'start' )
513	CALL vnest_init_fine
514	vnest_init = .TRUE.
515	CALL cpu_log( log_point_s(22), 'vnest_init', 'stop' )
516	ENDIF
517	ENDIF
518	!
519	!-- Determine ug, vg and w_subs in dependence on data from external file
520	!-- LSF_DATA
521	IF ( large_scale_forcing .AND. lsf_vert ) THEN
522	CALL ls_forcing_vert ( simulated_time )
523	sums_ls_l = 0.0_wp
524	ENDIF
525
526	!
527	!-- Set pt_init and q_init to the current profiles taken from
528	!-- NUDGING_DATA
529	IF ( nudging ) THEN
530	CALL nudge_ref ( simulated_time )
531	!
532	!-- Store temperature gradient at the top boundary for possible Neumann
533	!-- boundary condition
534	bc_pt_t_val = ( pt_init(nzt+1) - pt_init(nzt) ) / dzu(nzt+1)
535	bc_q_t_val = ( q_init(nzt+1) - q_init(nzt) ) / dzu(nzt+1)
536	IF ( air_chemistry ) THEN
537	DO lsp = 1, nvar
538	bc_cs_t_val = ( chem_species(lsp)%conc_pr_init(nzt+1) &
539	- chem_species(lsp)%conc_pr_init(nzt) ) &
540	/ dzu(nzt+1)
541	ENDDO
542	ENDIF
543	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
544	DO ib = 1, nbins_aerosol
545	bc_an_t_val = ( aerosol_number(ib)%init(nzt+1) - aerosol_number(ib)%init(nzt) ) / &
546	dzu(nzt+1)
547	DO ic = 1, ncomponents_mass
548	icc = ( ic - 1 ) * nbins_aerosol + ib
549	bc_am_t_val = ( aerosol_mass(icc)%init(nzt+1) - aerosol_mass(icc)%init(nzt) ) /&
550	dzu(nzt+1)
551	ENDDO
552	ENDDO
553	IF ( .NOT. salsa_gases_from_chem ) THEN
554	DO ig = 1, ngases_salsa
555	bc_gt_t_val = ( salsa_gas(ig)%init(nzt+1) - salsa_gas(ig)%init(nzt) ) / &
556	dzu(nzt+1)
557	ENDDO
558	ENDIF
559	ENDIF
560	ENDIF
561	!
562	!-- If forcing by larger-scale models is applied, check if new data
563	!-- at domain boundaries need to be read.
564	IF ( nesting_offline ) THEN
565	IF ( nest_offl%time(nest_offl%tind_p) <= time_since_reference_point ) &
566	CALL netcdf_data_input_offline_nesting
567	ENDIF
568
569	!
570	!-- Execute all other module actions routunes
571	CALL module_interface_actions( 'before_timestep' )
572
573	!
574	!-- Start of intermediate step loop
575	intermediate_timestep_count = 0
576	DO WHILE ( intermediate_timestep_count < intermediate_timestep_count_max )
577
578	intermediate_timestep_count = intermediate_timestep_count + 1
579
580	!
581	!-- Set the steering factors for the prognostic equations which depend
582	!-- on the timestep scheme
583	CALL timestep_scheme_steering
584
585	!
586	!-- Calculate those variables needed in the tendency terms which need
587	!-- global communication
588	IF ( .NOT. use_single_reference_value .AND. .NOT. use_initial_profile_as_reference ) &
589	THEN
590	!
591	!-- Horizontally averaged profiles to be used as reference state in
592	!-- buoyancy terms (WARNING: only the respective last call of
593	!-- calc_mean_profile defines the reference state!)
594	IF ( .NOT. neutral ) THEN
595	CALL calc_mean_profile( pt, 4 )
596	ref_state(:) = hom(:,1,4,0) ! this is used in the buoyancy term
597	ENDIF
598	IF ( ocean_mode ) THEN
599	CALL calc_mean_profile( rho_ocean, 64 )
600	ref_state(:) = hom(:,1,64,0)
601	ENDIF
602	IF ( humidity ) THEN
603	CALL calc_mean_profile( vpt, 44 )
604	ref_state(:) = hom(:,1,44,0)
605	ENDIF
606	!
607	!-- Assure that ref_state does not become zero at any level
608	!-- ( might be the case if a vertical level is completely occupied
609	!-- with topography ).
610	ref_state = MERGE( MAXVAL(ref_state), ref_state, ref_state == 0.0_wp )
611	ENDIF
612
613	IF ( ( ws_scheme_mom .OR. ws_scheme_sca ) .AND. intermediate_timestep_count == 1 ) &
614	THEN
615	CALL ws_statistics
616	ENDIF
617	!
618	!-- In case of nudging calculate current nudging time scale and horizontal
619	!-- means of u, v, pt and q
620	IF ( nudging ) THEN
621	CALL calc_tnudge( simulated_time )
622	CALL calc_mean_profile( u, 1 )
623	CALL calc_mean_profile( v, 2 )
624	CALL calc_mean_profile( pt, 4 )
625	CALL calc_mean_profile( q, 41 )
626	ENDIF
627	!
628	!-- Execute all other module actions routunes
629	CALL module_interface_actions( 'before_prognostic_equations' )
630	!
631	!-- Solve the prognostic equations. A fast cache optimized version with
632	!-- only one single loop is used in case of Piascek-Williams advection
633	!-- scheme. NEC vector machines use a different version, because
634	!-- in the other versions a good vectorization is prohibited due to
635	!-- inlining problems.
636	IF ( loop_optimization == 'cache' ) THEN
637	CALL prognostic_equations_cache
638	ELSEIF ( loop_optimization == 'vector' ) THEN
639	CALL prognostic_equations_vector
640	ENDIF
641
642	!
643	!-- Particle transport/physics with the Lagrangian particle model
644	!-- (only once during intermediate steps, because it uses an Euler-step)
645	!-- ### particle model should be moved before prognostic_equations, in order
646	!-- to regard droplet interactions directly
647	IF ( particle_advection .AND. time_since_reference_point >= particle_advection_start &
648	.AND. intermediate_timestep_count == 1 ) &
649	THEN
650	CALL module_interface_actions( 'after_prognostic_equations' )
651	first_call_lpm = .FALSE.
652	ENDIF
653
654	!
655	!-- Interaction of droplets with temperature and mixing ratio.
656	!-- Droplet condensation and evaporation is calculated within
657	!-- advec_particles.
658	IF ( cloud_droplets .AND. intermediate_timestep_count == intermediate_timestep_count_max ) &
659	THEN
660	CALL lpm_interaction_droplets_ptq
661	ENDIF
662
663	!
664	!-- Movement of agents in multi agent system
665	IF ( agents_active .AND. time_since_reference_point >= multi_agent_system_start .AND. &
666	time_since_reference_point <= multi_agent_system_end .AND. &
667	intermediate_timestep_count == 1 ) &
668	THEN
669	CALL multi_agent_system
670	first_call_mas = .FALSE.
671	ENDIF
672
673	!
674	!-- Exchange of ghost points (lateral boundary conditions)
675	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'start' )
676
677	CALL exchange_horiz( u_p, nbgp )
678	CALL exchange_horiz( v_p, nbgp )
679	CALL exchange_horiz( w_p, nbgp )
680	CALL exchange_horiz( pt_p, nbgp )
681	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
682	IF ( rans_tke_e .OR. wang_kernel .OR. collision_turbulence &
683	.OR. use_sgs_for_particles ) THEN
684	IF ( rans_tke_e ) THEN
685	CALL exchange_horiz( diss_p, nbgp )
686	ELSE
687	CALL exchange_horiz( diss, nbgp )
688	ENDIF
689	ENDIF
690	IF ( ocean_mode ) THEN
691	CALL exchange_horiz( sa_p, nbgp )
692	CALL exchange_horiz( rho_ocean, nbgp )
693	CALL exchange_horiz( prho, nbgp )
694	ENDIF
695	IF ( humidity ) THEN
696	CALL exchange_horiz( q_p, nbgp )
697	IF ( bulk_cloud_model .AND. microphysics_morrison ) THEN
698	CALL exchange_horiz( qc_p, nbgp )
699	CALL exchange_horiz( nc_p, nbgp )
700	ENDIF
701	IF ( bulk_cloud_model .AND. microphysics_seifert ) THEN
702	CALL exchange_horiz( qr_p, nbgp )
703	CALL exchange_horiz( nr_p, nbgp )
704	ENDIF
705	ENDIF
706	IF ( cloud_droplets ) THEN
707	CALL exchange_horiz( ql, nbgp )
708	CALL exchange_horiz( ql_c, nbgp )
709	CALL exchange_horiz( ql_v, nbgp )
710	CALL exchange_horiz( ql_vp, nbgp )
711	ENDIF
712	IF ( passive_scalar ) CALL exchange_horiz( s_p, nbgp )
713	IF ( air_chemistry ) THEN
714	DO lsp = 1, nvar
715	CALL exchange_horiz( chem_species(lsp)%conc_p, nbgp )
716	ENDDO
717	ENDIF
718
719	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
720	DO ib = 1, nbins_aerosol
721	CALL exchange_horiz( aerosol_number(ib)%conc_p, nbgp )
722	DO ic = 1, ncomponents_mass
723	icc = ( ic - 1 ) * nbins_aerosol + ib
724	CALL exchange_horiz( aerosol_mass(icc)%conc_p, nbgp )
725	ENDDO
726	ENDDO
727	IF ( .NOT. salsa_gases_from_chem ) THEN
728	DO ig = 1, ngases_salsa
729	CALL exchange_horiz( salsa_gas(ig)%conc_p, nbgp )
730	ENDDO
731	ENDIF
732	ENDIF
733	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'stop' )
734
735	!
736	!-- Boundary conditions for the prognostic quantities (except of the
737	!-- velocities at the outflow in case of a non-cyclic lateral wall)
738	CALL boundary_conds
739
740	!
741	!-- Boundary conditions for prognostic quantitites of other modules:
742	!-- Here, only decycling is carried out
743	IF ( air_chemistry ) THEN
744
745	DO lsp = 1, nvar
746	lsp_usr = 1
747	DO WHILE ( TRIM( cs_name( lsp_usr ) ) /= 'novalue' )
748	IF ( TRIM( chem_species(lsp)%name ) == TRIM( cs_name(lsp_usr) ) ) THEN
749	CALL chem_boundary_conds( chem_species(lsp)%conc_p, &
750	chem_species(lsp)%conc_pr_init )
751	ENDIF
752	lsp_usr = lsp_usr + 1
753	ENDDO
754	ENDDO
755
756	ENDIF
757
758	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
759
760	DO ib = 1, nbins_aerosol
761	CALL salsa_boundary_conds( aerosol_number(ib)%conc_p, aerosol_number(ib)%init )
762	DO ic = 1, ncomponents_mass
763	icc = ( ic - 1 ) * nbins_aerosol + ib
764	CALL salsa_boundary_conds( aerosol_mass(icc)%conc_p, aerosol_mass(icc)%init )
765	ENDDO
766	ENDDO
767	IF ( .NOT. salsa_gases_from_chem ) THEN
768	DO ig = 1, ngases_salsa
769	CALL salsa_boundary_conds( salsa_gas(ig)%conc_p, salsa_gas(ig)%init )
770	ENDDO
771	ENDIF
772
773	ENDIF
774
775	!
776	!-- Incrementing timestep counter
777	timestep_count = timestep_count + 1
778
779	CALL cpu_log( log_point(28), 'swap_timelevel', 'start' )
780	!
781	!-- Set the swap level for all modules
782	CALL module_interface_swap_timelevel( MOD( timestep_count, 2) )
783	!
784	!-- Set the swap level for steering the pmc data transfer
785	IF ( nested_run ) CALL pmci_set_swaplevel( MOD( timestep_count, 2) + 1 ) !> @todo: why the +1 ?
786
787	CALL cpu_log( log_point(28), 'swap_timelevel', 'stop' )
788
789	!
790	!-- Vertical nesting: Interpolate fine grid data to the coarse grid
791	IF ( vnest_init ) THEN
792	CALL cpu_log( log_point_s(37), 'vnest_anterpolate', 'start' )
793	CALL vnest_anterpolate
794	CALL cpu_log( log_point_s(37), 'vnest_anterpolate', 'stop' )
795	ENDIF
796
797	IF ( nested_run ) THEN
798
799	CALL cpu_log( log_point(60), 'nesting', 'start' )
800	!
801	!-- Domain nesting. The data transfer subroutines pmci_parent_datatrans
802	!-- and pmci_child_datatrans are called inside the wrapper
803	!-- subroutine pmci_datatrans according to the control parameters
804	!-- nesting_mode and nesting_datatransfer_mode.
805	!-- TO_DO: why is nesting_mode given as a parameter here?
806	CALL pmci_datatrans( nesting_mode )
807
808	IF ( TRIM( nesting_mode ) == 'two-way' .OR. nesting_mode == 'vertical' ) THEN
809
810	CALL cpu_log( log_point_s(92), 'exchange-horiz-nest', 'start' )
811	!
812	!-- Exchange_horiz is needed for all parent-domains after the
813	!-- anterpolation
814	CALL exchange_horiz( u, nbgp )
815	CALL exchange_horiz( v, nbgp )
816	CALL exchange_horiz( w, nbgp )
817	IF ( .NOT. neutral ) CALL exchange_horiz( pt, nbgp )
818
819	IF ( humidity ) THEN
820
821	CALL exchange_horiz( q, nbgp )
822
823	IF ( bulk_cloud_model .AND. microphysics_morrison ) THEN
824	CALL exchange_horiz( qc, nbgp )
825	CALL exchange_horiz( nc, nbgp )
826	ENDIF
827	IF ( bulk_cloud_model .AND. microphysics_seifert ) THEN
828	CALL exchange_horiz( qr, nbgp )
829	CALL exchange_horiz( nr, nbgp )
830	ENDIF
831
832	ENDIF
833
834	IF ( passive_scalar ) CALL exchange_horiz( s, nbgp )
835
836	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e, nbgp )
837
838	IF ( .NOT. constant_diffusion .AND. rans_mode .AND. rans_tke_e ) THEN
839	CALL exchange_horiz( diss, nbgp )
840	ENDIF
841
842	IF ( air_chemistry ) THEN
843	DO n = 1, nvar
844	CALL exchange_horiz( chem_species(n)%conc, nbgp )
845	ENDDO
846	ENDIF
847
848	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
849	DO ib = 1, nbins_aerosol
850	CALL exchange_horiz( aerosol_number(ib)%conc, nbgp )
851	DO ic = 1, ncomponents_mass
852	icc = ( ic - 1 ) * nbins_aerosol + ib
853	CALL exchange_horiz( aerosol_mass(icc)%conc, nbgp )
854	ENDDO
855	ENDDO
856	IF ( .NOT. salsa_gases_from_chem ) THEN
857	DO ig = 1, ngases_salsa
858	CALL exchange_horiz( salsa_gas(ig)%conc, nbgp )
859	ENDDO
860	ENDIF
861	ENDIF
862	CALL cpu_log( log_point_s(92), 'exchange-horiz-nest', 'stop' )
863
864	ENDIF
865
866	!
867	!-- Set boundary conditions again after interpolation and anterpolation.
868	CALL pmci_boundary_conds
869
870	!
871	!-- Set chemistry boundary conditions (decycling)
872	IF ( air_chemistry ) THEN
873	DO lsp = 1, nvar
874	lsp_usr = 1
875	DO WHILE ( TRIM( cs_name( lsp_usr ) ) /= 'novalue' )
876	IF ( TRIM( chem_species(lsp)%name ) == TRIM( cs_name(lsp_usr) ) ) THEN
877	CALL chem_boundary_conds( chem_species(lsp)%conc, &
878	chem_species(lsp)%conc_pr_init )
879	ENDIF
880	lsp_usr = lsp_usr + 1
881	ENDDO
882	ENDDO
883	ENDIF
884
885	!
886	!-- Set SALSA boundary conditions (decycling)
887	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
888	DO ib = 1, nbins_aerosol
889	CALL salsa_boundary_conds( aerosol_number(ib)%conc, aerosol_number(ib)%init )
890	DO ic = 1, ncomponents_mass
891	icc = ( ic - 1 ) * nbins_aerosol + ib
892	CALL salsa_boundary_conds( aerosol_mass(icc)%conc, aerosol_mass(icc)%init )
893	ENDDO
894	ENDDO
895	IF ( .NOT. salsa_gases_from_chem ) THEN
896	DO ig = 1, ngases_salsa
897	CALL salsa_boundary_conds( salsa_gas(ig)%conc, salsa_gas(ig)%init )
898	ENDDO
899	ENDIF
900	ENDIF
901
902	CALL cpu_log( log_point(60), 'nesting', 'stop' )
903
904	ENDIF
905
906	!
907	!-- Temperature offset must be imposed at cyclic boundaries in x-direction
908	!-- when a sloping surface is used
909	IF ( sloping_surface ) THEN
910	IF ( nxl == 0 ) pt(:,:,nxlg:nxl-1) = pt(:,:,nxlg:nxl-1) - pt_slope_offset
911	IF ( nxr == nx ) pt(:,:,nxr+1:nxrg) = pt(:,:,nxr+1:nxrg) + pt_slope_offset
912	ENDIF
913
914	!
915	!-- Impose a turbulent inflow using the recycling method
916	IF ( turbulent_inflow ) CALL inflow_turbulence
917
918	!
919	!-- Set values at outflow boundary using the special outflow condition
920	IF ( turbulent_outflow ) CALL outflow_turbulence
921
922	!
923	!-- Impose a random perturbation on the horizontal velocity field
924	IF ( create_disturbances .AND. ( call_psolver_at_all_substeps .AND. &
925	intermediate_timestep_count == intermediate_timestep_count_max ) &
926	.OR. ( .NOT. call_psolver_at_all_substeps .AND. intermediate_timestep_count == 1 ) ) &
927	THEN
928	time_disturb = time_disturb + dt_3d
929	IF ( time_disturb >= dt_disturb ) THEN
930	IF ( disturbance_energy_limit /= 0.0_wp .AND. &
931	hom(nzb+5,1,pr_palm,0) < disturbance_energy_limit ) THEN
932	CALL disturb_field( 'u', tend, u )
933	CALL disturb_field( 'v', tend, v )
934	ELSEIF ( ( .NOT. bc_lr_cyc .OR. .NOT. bc_ns_cyc ) &
935	.AND. .NOT. child_domain .AND. .NOT. nesting_offline ) &
936	THEN
937	!
938	!-- Runs with a non-cyclic lateral wall need perturbations
939	!-- near the inflow throughout the whole simulation
940	dist_range = 1
941	CALL disturb_field( 'u', tend, u )
942	CALL disturb_field( 'v', tend, v )
943	dist_range = 0
944	ENDIF
945	time_disturb = time_disturb - dt_disturb
946	ENDIF
947	ENDIF
948
949	!
950	!-- Map forcing data derived from larger scale model onto domain
951	!-- boundaries.
952	IF ( nesting_offline .AND. intermediate_timestep_count == &
953	intermediate_timestep_count_max ) &
954	CALL nesting_offl_bc
955	!
956	!-- Impose a turbulent inflow using synthetic generated turbulence.
957	IF ( use_syn_turb_gen .AND. &
958	intermediate_timestep_count == intermediate_timestep_count_max ) THEN
959	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'start' )
960	CALL stg_main
961	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'stop' )
962	ENDIF
963	!
964	!-- Ensure mass conservation. This need to be done after imposing
965	!-- synthetic turbulence and top boundary condition for pressure is set to
966	!-- Neumann conditions.
967	!-- Is this also required in case of Dirichlet?
968	IF ( nesting_offline ) CALL nesting_offl_mass_conservation
969	!
970	!-- Reduce the velocity divergence via the equation for perturbation
971	!-- pressure.
972	IF ( intermediate_timestep_count == 1 .OR. &
973	call_psolver_at_all_substeps ) THEN
974
975	IF ( vnest_init ) THEN
976	!
977	!-- Compute pressure in the CG, interpolate top boundary conditions
978	!-- to the FG and then compute pressure in the FG
979	IF ( coupling_mode == 'vnested_crse' ) CALL pres
980
981	CALL cpu_log( log_point_s(30), 'vnest_bc', 'start' )
982	CALL vnest_boundary_conds
983	CALL cpu_log( log_point_s(30), 'vnest_bc', 'stop' )
984
985	IF ( coupling_mode == 'vnested_fine' ) CALL pres
986
987	!-- Anterpolate TKE, satisfy Germano Identity
988	CALL cpu_log( log_point_s(28), 'vnest_anter_e', 'start' )
989	CALL vnest_anterpolate_e
990	CALL cpu_log( log_point_s(28), 'vnest_anter_e', 'stop' )
991
992	ELSE
993	!
994	!-- Mass (volume) flux correction to ensure global mass conservation for child domains.
995	IF ( child_domain ) THEN
996	IF ( nesting_mode == 'vertical' ) THEN
997	CALL pmci_ensure_nest_mass_conservation_vertical
998	ELSE
999	CALL pmci_ensure_nest_mass_conservation
1000	ENDIF
1001	ENDIF
1002
1003	CALL pres
1004
1005	ENDIF
1006
1007	ENDIF
1008
1009	!
1010	!-- If required, compute liquid water content
1011	IF ( bulk_cloud_model ) THEN
1012	CALL calc_liquid_water_content
1013	ENDIF
1014	!
1015	!-- If required, compute virtual potential temperature
1016	IF ( humidity ) THEN
1017	CALL compute_vpt
1018	ENDIF
1019
1020	!
1021	!-- Compute the diffusion quantities
1022	IF ( .NOT. constant_diffusion ) THEN
1023
1024	!
1025	!-- Determine surface fluxes shf and qsws and surface values
1026	!-- pt_surface and q_surface in dependence on data from external
1027	!-- file LSF_DATA respectively
1028	IF ( ( large_scale_forcing .AND. lsf_surf ) .AND. &
1029	intermediate_timestep_count == intermediate_timestep_count_max ) &
1030	THEN
1031	CALL ls_forcing_surf( simulated_time )
1032	ENDIF
1033
1034	!
1035	!-- First the vertical (and horizontal) fluxes in the surface
1036	!-- (constant flux) layer are computed
1037	IF ( constant_flux_layer ) THEN
1038	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'start' )
1039	CALL surface_layer_fluxes
1040	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'stop' )
1041	ENDIF
1042	!
1043	!-- If required, solve the energy balance for the surface and run soil
1044	!-- model. Call for horizontal as well as vertical surfaces
1045	IF ( land_surface .AND. time_since_reference_point >= skip_time_do_lsm) THEN
1046
1047	CALL cpu_log( log_point(54), 'land_surface', 'start' )
1048	!
1049	!-- Call for horizontal upward-facing surfaces
1050	CALL lsm_energy_balance( .TRUE., -1 )
1051	CALL lsm_soil_model( .TRUE., -1, .TRUE. )
1052	!
1053	!-- Call for northward-facing surfaces
1054	CALL lsm_energy_balance( .FALSE., 0 )
1055	CALL lsm_soil_model( .FALSE., 0, .TRUE. )
1056	!
1057	!-- Call for southward-facing surfaces
1058	CALL lsm_energy_balance( .FALSE., 1 )
1059	CALL lsm_soil_model( .FALSE., 1, .TRUE. )
1060	!
1061	!-- Call for eastward-facing surfaces
1062	CALL lsm_energy_balance( .FALSE., 2 )
1063	CALL lsm_soil_model( .FALSE., 2, .TRUE. )
1064	!
1065	!-- Call for westward-facing surfaces
1066	CALL lsm_energy_balance( .FALSE., 3 )
1067	CALL lsm_soil_model( .FALSE., 3, .TRUE. )
1068
1069	!
1070	!-- At the end, set boundary conditons for potential temperature
1071	!-- and humidity after running the land-surface model. This
1072	!-- might be important for the nesting, where arrays are transfered.
1073	CALL lsm_boundary_condition
1074
1075
1076	CALL cpu_log( log_point(54), 'land_surface', 'stop' )
1077	ENDIF
1078	!
1079	!-- If required, solve the energy balance for urban surfaces and run
1080	!-- the material heat model
1081	IF (urban_surface) THEN
1082	CALL cpu_log( log_point(74), 'urban_surface', 'start' )
1083
1084	CALL usm_surface_energy_balance( .FALSE. )
1085	IF ( usm_material_model ) THEN
1086	CALL usm_green_heat_model
1087	CALL usm_material_heat_model ( .FALSE. )
1088	ENDIF
1089
1090	!
1091	!-- At the end, set boundary conditons for potential temperature
1092	!-- and humidity after running the urban-surface model. This
1093	!-- might be important for the nesting, where arrays are transfered.
1094	CALL usm_boundary_condition
1095
1096	CALL cpu_log( log_point(74), 'urban_surface', 'stop' )
1097	ENDIF
1098	!
1099	!-- Compute the diffusion coefficients
1100	CALL cpu_log( log_point(17), 'diffusivities', 'start' )
1101	IF ( .NOT. humidity ) THEN
1102	IF ( ocean_mode ) THEN
1103	CALL tcm_diffusivities( prho, prho_reference )
1104	ELSE
1105	CALL tcm_diffusivities( pt, pt_reference )
1106	ENDIF
1107	ELSE
1108	CALL tcm_diffusivities( vpt, pt_reference )
1109	ENDIF
1110	CALL cpu_log( log_point(17), 'diffusivities', 'stop' )
1111	!
1112	!-- Vertical nesting: set fine grid eddy viscosity top boundary condition
1113	IF ( vnest_init ) CALL vnest_boundary_conds_khkm
1114
1115	ENDIF
1116
1117	ENDDO ! Intermediate step loop
1118
1119	!
1120	!-- Will be used at some point by flow_statistics.
1121	!$ACC UPDATE &
1122	!$ACC HOST(sums_l_l(nzb:nzt+1,0:statistic_regions,0)) &
1123	!$ACC HOST(sums_us2_ws_l(nzb:nzt+1,0)) &
1124	!$ACC HOST(sums_wsus_ws_l(nzb:nzt+1,0)) &
1125	!$ACC HOST(sums_vs2_ws_l(nzb:nzt+1,0)) &
1126	!$ACC HOST(sums_wsvs_ws_l(nzb:nzt+1,0)) &
1127	!$ACC HOST(sums_ws2_ws_l(nzb:nzt+1,0)) &
1128	!$ACC HOST(sums_wspts_ws_l(nzb:nzt+1,0)) &
1129	!$ACC HOST(sums_wssas_ws_l(nzb:nzt+1,0)) &
1130	!$ACC HOST(sums_wsqs_ws_l(nzb:nzt+1,0)) &
1131	!$ACC HOST(sums_wsqcs_ws_l(nzb:nzt+1,0)) &
1132	!$ACC HOST(sums_wsqrs_ws_l(nzb:nzt+1,0)) &
1133	!$ACC HOST(sums_wsncs_ws_l(nzb:nzt+1,0)) &
1134	!$ACC HOST(sums_wsnrs_ws_l(nzb:nzt+1,0)) &
1135	!$ACC HOST(sums_wsss_ws_l(nzb:nzt+1,0)) &
1136	!$ACC HOST(sums_salsa_ws_l(nzb:nzt+1,0))
1137
1138	!
1139	!-- If required, calculate radiative fluxes and heating rates
1140	IF ( radiation .AND. time_since_reference_point > skip_time_do_radiation ) THEN
1141
1142	time_radiation = time_radiation + dt_3d
1143
1144	IF ( time_radiation >= dt_radiation .OR. force_radiation_call ) THEN
1145
1146	CALL cpu_log( log_point(50), 'radiation', 'start' )
1147
1148	IF ( .NOT. force_radiation_call ) THEN
1149	time_radiation = time_radiation - dt_radiation
1150	ENDIF
1151
1152	!
1153	!-- Adjust the current time to the time step of the radiation model.
1154	!-- Needed since radiation is pre-calculated and stored only on apparent
1155	!-- solar positions
1156	time_since_reference_point_save = time_since_reference_point
1157	time_since_reference_point = REAL( FLOOR( time_since_reference_point / &
1158	dt_radiation ), wp ) * dt_radiation
1159
1160	CALL radiation_control
1161
1162	IF ( ( urban_surface .OR. land_surface ) .AND. radiation_interactions ) THEN
1163	CALL cpu_log( log_point_s(46), 'radiation_interaction', 'start' )
1164	CALL radiation_interaction
1165	CALL cpu_log( log_point_s(46), 'radiation_interaction', 'stop' )
1166	ENDIF
1167
1168	!
1169	!-- Return the current time to its original value
1170	time_since_reference_point = time_since_reference_point_save
1171
1172	CALL cpu_log( log_point(50), 'radiation', 'stop' )
1173
1174	ENDIF
1175	ENDIF
1176
1177	!
1178	!-- If required, consider chemical emissions
1179	IF ( air_chemistry .AND. emissions_anthropogenic ) THEN
1180	!
1181	!-- Update the time --> kanani: revise location of this CALL
1182	CALL calc_date_and_time
1183	!
1184	!-- Call emission routine only once an hour
1185	IF ( hour_of_year > hour_call_emis ) THEN
1186	CALL chem_emissions_setup( chem_emis_att, chem_emis, n_matched_vars )
1187	hour_call_emis = hour_of_year
1188	ENDIF
1189	ENDIF
1190	!
1191	!-- If required, consider aerosol emissions for the salsa model
1192	IF ( salsa ) THEN
1193	!
1194	!-- Call emission routine to update emissions if needed
1195	CALL salsa_emission_update
1196
1197	ENDIF
1198	!
1199	!-- If required, calculate indoor temperature, waste heat, heat flux
1200	!-- through wall, etc.
1201	!-- dt_indoor steers the frequency of the indoor model calculations.
1202	!-- Note, at first timestep indoor model is called, in order to provide
1203	!-- a waste heat flux.
1204	IF ( indoor_model ) THEN
1205
1206	time_indoor = time_indoor + dt_3d
1207
1208	IF ( time_indoor >= dt_indoor .OR. current_timestep_number == 0 ) THEN
1209
1210	time_indoor = time_indoor - dt_indoor
1211
1212	CALL cpu_log( log_point(76), 'indoor_model', 'start' )
1213	CALL im_main_heatcool
1214	CALL cpu_log( log_point(76), 'indoor_model', 'stop' )
1215
1216	ENDIF
1217	ENDIF
1218	!
1219	!-- Increase simulation time and output times
1220	nr_timesteps_this_run = nr_timesteps_this_run + 1
1221	current_timestep_number = current_timestep_number + 1
1222	simulated_time = simulated_time + dt_3d
1223	time_since_reference_point = simulated_time - coupling_start_time
1224	simulated_time_chr = time_to_string( time_since_reference_point )
1225
1226
1227
1228
1229	IF ( time_since_reference_point >= skip_time_data_output_av ) THEN
1230	time_do_av = time_do_av + dt_3d
1231	ENDIF
1232	IF ( time_since_reference_point >= skip_time_do2d_xy ) THEN
1233	time_do2d_xy = time_do2d_xy + dt_3d
1234	ENDIF
1235	IF ( time_since_reference_point >= skip_time_do2d_xz ) THEN
1236	time_do2d_xz = time_do2d_xz + dt_3d
1237	ENDIF
1238	IF ( time_since_reference_point >= skip_time_do2d_yz ) THEN
1239	time_do2d_yz = time_do2d_yz + dt_3d
1240	ENDIF
1241	IF ( time_since_reference_point >= skip_time_do3d ) THEN
1242	time_do3d = time_do3d + dt_3d
1243	ENDIF
1244	DO mid = 1, masks
1245	IF ( time_since_reference_point >= skip_time_domask(mid) ) THEN
1246	time_domask(mid)= time_domask(mid) + dt_3d
1247	ENDIF
1248	ENDDO
1249	IF ( time_since_reference_point >= skip_time_dosp ) THEN
1250	time_dosp = time_dosp + dt_3d
1251	ENDIF
1252	time_dots = time_dots + dt_3d
1253	IF ( .NOT. first_call_lpm ) THEN
1254	time_dopts = time_dopts + dt_3d
1255	ENDIF
1256	IF ( time_since_reference_point >= skip_time_dopr ) THEN
1257	time_dopr = time_dopr + dt_3d
1258	ENDIF
1259	time_dopr_listing = time_dopr_listing + dt_3d
1260	time_run_control = time_run_control + dt_3d
1261	!
1262	!-- Increment time-counter for surface output
1263	IF ( surface_output ) THEN
1264	IF ( time_since_reference_point >= skip_time_dosurf ) THEN
1265	time_dosurf = time_dosurf + dt_3d
1266	ENDIF
1267	IF ( time_since_reference_point >= skip_time_dosurf_av ) THEN
1268	time_dosurf_av = time_dosurf_av + dt_3d
1269	ENDIF
1270	ENDIF
1271	!
1272	!-- Increment time-counter for virtual measurements
1273	IF ( virtual_measurement .AND. vm_time_start <= time_since_reference_point ) THEN
1274	time_virtual_measurement = time_virtual_measurement + dt_3d
1275	ENDIF
1276	!
1277	!-- In case of synthetic turbulence generation and parametrized turbulence
1278	!-- information, update the time counter and if required, adjust the
1279	!-- STG to new atmospheric conditions.
1280	IF ( use_syn_turb_gen ) THEN
1281	IF ( parametrize_inflow_turbulence ) THEN
1282	time_stg_adjust = time_stg_adjust + dt_3d
1283	IF ( time_stg_adjust >= dt_stg_adjust ) THEN
1284	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'start' )
1285	CALL stg_adjust
1286	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'stop' )
1287	ENDIF
1288	ENDIF
1289	time_stg_call = time_stg_call + dt_3d
1290	ENDIF
1291
1292	!
1293	!-- Data exchange between coupled models
1294	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled .AND. .NOT. vnested ) THEN
1295	time_coupling = time_coupling + dt_3d
1296
1297	!
1298	!-- In case of model termination initiated by the local model
1299	!-- (terminate_coupled > 0), the coupler must be skipped because it would
1300	!-- cause an MPI intercomminucation hang.
1301	!-- If necessary, the coupler will be called at the beginning of the
1302	!-- next restart run.
1303	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
1304	CALL surface_coupler
1305	time_coupling = time_coupling - dt_coupling
1306	ENDDO
1307	ENDIF
1308
1309	!
1310	!-- Biometeorology calculation of stationary thermal indices
1311	!-- Todo (kanani): biometeorology needs own time_... treatment.
1312	!-- It might be that time_do2d_xy differs from time_do3d,
1313	!-- and then we might get trouble with the biomet output,
1314	!-- because we can have 2d and/or 3d biomet output!!
1315	IF ( biometeorology &
1316	.AND. ( ( time_do3d >= dt_do3d .AND. time_since_reference_point >= skip_time_do3d ) &
1317	.OR. &
1318	( time_do2d_xy >= dt_do2d_xy .AND. time_since_reference_point >= skip_time_do2d_xy ) &
1319	) ) THEN
1320	!
1321	!-- If required, do thermal comfort calculations
1322	IF ( thermal_comfort ) THEN
1323	CALL bio_calculate_thermal_index_maps ( .FALSE. )
1324	ENDIF
1325	!
1326	!-- If required, do UV exposure calculations
1327	IF ( uv_exposure ) THEN
1328	CALL bio_calculate_uv_exposure
1329	ENDIF
1330	ENDIF
1331
1332	!
1333	!-- Execute alle other module actions routunes
1334	CALL module_interface_actions( 'after_integration' )
1335
1336	!
1337	!-- If Galilei transformation is used, determine the distance that the
1338	!-- model has moved so far
1339	IF ( galilei_transformation ) THEN
1340	advected_distance_x = advected_distance_x + u_gtrans * dt_3d
1341	advected_distance_y = advected_distance_y + v_gtrans * dt_3d
1342	ENDIF
1343
1344	!
1345	!-- Check, if restart is necessary (because cpu-time is expiring or
1346	!-- because it is forced by user) and set stop flag
1347	!-- This call is skipped if the remote model has already initiated a restart.
1348	IF ( .NOT. terminate_run ) CALL check_for_restart
1349
1350	!
1351	!-- Carry out statistical analysis and output at the requested output times.
1352	!-- The MOD function is used for calculating the output time counters (like
1353	!-- time_dopr) in order to regard a possible decrease of the output time
1354	!-- interval in case of restart runs
1355
1356	!
1357	!-- Set a flag indicating that so far no statistics have been created
1358	!-- for this time step
1359	flow_statistics_called = .FALSE.
1360
1361	!
1362	!-- If required, call flow_statistics for averaging in time
1363	IF ( averaging_interval_pr /= 0.0_wp .AND. &
1364	( dt_dopr - time_dopr ) <= averaging_interval_pr .AND. &
1365	time_since_reference_point >= skip_time_dopr ) THEN
1366	time_dopr_av = time_dopr_av + dt_3d
1367	IF ( time_dopr_av >= dt_averaging_input_pr ) THEN
1368	do_sum = .TRUE.
1369	time_dopr_av = MOD( time_dopr_av, MAX( dt_averaging_input_pr, dt_3d ) )
1370	ENDIF
1371	ENDIF
1372	IF ( do_sum ) CALL flow_statistics
1373
1374	!
1375	!-- Sum-up 3d-arrays for later output of time-averaged 2d/3d/masked data
1376	IF ( averaging_interval /= 0.0_wp .AND. &
1377	( dt_data_output_av - time_do_av ) <= averaging_interval .AND. &
1378	time_since_reference_point >= skip_time_data_output_av ) &
1379	THEN
1380	time_do_sla = time_do_sla + dt_3d
1381	IF ( time_do_sla >= dt_averaging_input ) THEN
1382	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1383	CALL doq_calculate
1384
1385	CALL sum_up_3d_data
1386	average_count_3d = average_count_3d + 1
1387	time_do_sla = MOD( time_do_sla, MAX( dt_averaging_input, dt_3d ) )
1388	ENDIF
1389	ENDIF
1390	!
1391	!-- Average surface data
1392	IF ( surface_output ) THEN
1393	IF ( averaging_interval_surf /= 0.0_wp &
1394	.AND. ( dt_dosurf_av - time_dosurf_av ) <= averaging_interval_surf &
1395	.AND. time_since_reference_point >= skip_time_dosurf_av ) THEN
1396	IF ( time_dosurf_av >= dt_averaging_input ) THEN
1397	CALL surface_data_output_averaging
1398	average_count_surf = average_count_surf + 1
1399	ENDIF
1400	ENDIF
1401	ENDIF
1402
1403	!
1404	!-- Calculate spectra for time averaging
1405	IF ( averaging_interval_sp /= 0.0_wp .AND. ( dt_dosp - time_dosp ) <= averaging_interval_sp&
1406	.AND. time_since_reference_point >= skip_time_dosp ) THEN
1407	time_dosp_av = time_dosp_av + dt_3d
1408	IF ( time_dosp_av >= dt_averaging_input_pr ) THEN
1409	CALL calc_spectra
1410	time_dosp_av = MOD( time_dosp_av, MAX( dt_averaging_input_pr, dt_3d ) )
1411	ENDIF
1412	ENDIF
1413
1414	!
1415	!-- Call flight module and output data
1416	IF ( virtual_flight ) THEN
1417	CALL flight_measurement
1418	CALL data_output_flight
1419	ENDIF
1420	!
1421	!-- Take virtual measurements
1422	IF ( virtual_measurement .AND. time_virtual_measurement >= dt_virtual_measurement &
1423	.AND. vm_time_start <= time_since_reference_point ) THEN
1424	CALL vm_sampling
1425	CALL vm_data_output
1426	time_virtual_measurement = MOD( time_virtual_measurement, &
1427	MAX( dt_virtual_measurement, dt_3d ) )
1428	ENDIF
1429	!
1430	!-- Profile output (ASCII) on file
1431	IF ( time_dopr_listing >= dt_dopr_listing ) THEN
1432	CALL print_1d
1433	time_dopr_listing = MOD( time_dopr_listing, MAX( dt_dopr_listing, dt_3d ) )
1434	ENDIF
1435
1436	!
1437	!-- Graphic output for PROFIL
1438	IF ( time_dopr >= dt_dopr .AND. time_since_reference_point >= skip_time_dopr ) THEN
1439	IF ( dopr_n /= 0 ) CALL data_output_profiles
1440	time_dopr = MOD( time_dopr, MAX( dt_dopr, dt_3d ) )
1441	time_dopr_av = 0.0_wp ! due to averaging (see above)
1442	ENDIF
1443
1444	!
1445	!-- Graphic output for time series
1446	IF ( time_dots >= dt_dots ) THEN
1447	CALL data_output_tseries
1448	time_dots = MOD( time_dots, MAX( dt_dots, dt_3d ) )
1449	ENDIF
1450
1451	!
1452	!-- Output of spectra (formatted for use with PROFIL), in case of no
1453	!-- time averaging, spectra has to be calculated before
1454	IF ( time_dosp >= dt_dosp .AND. time_since_reference_point >= skip_time_dosp ) THEN
1455	IF ( average_count_sp == 0 ) CALL calc_spectra
1456	CALL data_output_spectra
1457	time_dosp = MOD( time_dosp, MAX( dt_dosp, dt_3d ) )
1458	ENDIF
1459
1460	!
1461	!-- 2d-data output (cross-sections)
1462	IF ( time_do2d_xy >= dt_do2d_xy .AND. time_since_reference_point >= skip_time_do2d_xy ) THEN
1463	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1464	CALL doq_calculate
1465
1466	CALL data_output_2d( 'xy', 0 )
1467	time_do2d_xy = MOD( time_do2d_xy, MAX( dt_do2d_xy, dt_3d ) )
1468	ENDIF
1469	IF ( time_do2d_xz >= dt_do2d_xz .AND. time_since_reference_point >= skip_time_do2d_xz ) THEN
1470	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1471
1472	CALL doq_calculate
1473	CALL data_output_2d( 'xz', 0 )
1474	time_do2d_xz = MOD( time_do2d_xz, MAX( dt_do2d_xz, dt_3d ) )
1475	ENDIF
1476	IF ( time_do2d_yz >= dt_do2d_yz .AND. time_since_reference_point >= skip_time_do2d_yz ) THEN
1477	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1478	CALL doq_calculate
1479
1480	CALL data_output_2d( 'yz', 0 )
1481	time_do2d_yz = MOD( time_do2d_yz, MAX( dt_do2d_yz, dt_3d ) )
1482	ENDIF
1483
1484	!
1485	!-- 3d-data output (volume data)
1486	IF ( time_do3d >= dt_do3d .AND. time_since_reference_point >= skip_time_do3d ) THEN
1487	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1488	CALL doq_calculate
1489
1490	CALL data_output_3d( 0 )
1491	time_do3d = MOD( time_do3d, MAX( dt_do3d, dt_3d ) )
1492	ENDIF
1493
1494	!
1495	!-- Masked data output
1496	DO mid = 1, masks
1497	IF ( time_domask(mid) >= dt_domask(mid) &
1498	.AND. time_since_reference_point >= skip_time_domask(mid) ) THEN
1499	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1500	CALL doq_calculate
1501
1502	CALL data_output_mask( 0, mid )
1503	time_domask(mid) = MOD( time_domask(mid), MAX( dt_domask(mid), dt_3d ) )
1504	ENDIF
1505	ENDDO
1506
1507	!
1508	!-- Output of time-averaged 2d/3d/masked data
1509	IF ( time_do_av >= dt_data_output_av &
1510	.AND. time_since_reference_point >= skip_time_data_output_av ) THEN
1511	CALL average_3d_data
1512	!
1513	!-- Udate thermal comfort indices based on updated averaged input
1514	IF ( biometeorology .AND. thermal_comfort ) THEN
1515	CALL bio_calculate_thermal_index_maps ( .TRUE. )
1516	ENDIF
1517	CALL data_output_2d( 'xy', 1 )
1518	CALL data_output_2d( 'xz', 1 )
1519	CALL data_output_2d( 'yz', 1 )
1520	CALL data_output_3d( 1 )
1521	DO mid = 1, masks
1522	CALL data_output_mask( 1, mid )
1523	ENDDO
1524	time_do_av = MOD( time_do_av, MAX( dt_data_output_av, dt_3d ) )
1525	ENDIF
1526	!
1527	!-- Output of surface data, instantaneous and averaged data
1528	IF ( surface_output ) THEN
1529	IF ( time_dosurf >= dt_dosurf .AND. time_since_reference_point >= skip_time_dosurf ) THEN
1530	CALL surface_data_output( 0 )
1531	time_dosurf = MOD( time_dosurf, MAX( dt_dosurf, dt_3d ) )
1532	ENDIF
1533	IF ( time_dosurf_av >= dt_dosurf_av .AND. time_since_reference_point >= skip_time_dosurf_av ) THEN
1534	CALL surface_data_output( 1 )
1535	time_dosurf_av = MOD( time_dosurf_av, MAX( dt_dosurf_av, dt_3d ) )
1536	ENDIF
1537	ENDIF
1538
1539	!
1540	!-- Output of particle time series
1541	IF ( particle_advection ) THEN
1542	IF ( time_dopts >= dt_dopts .OR. &
1543	( time_since_reference_point >= particle_advection_start .AND. &
1544	first_call_lpm ) ) THEN
1545	CALL lpm_data_output_ptseries
1546	time_dopts = MOD( time_dopts, MAX( dt_dopts, dt_3d ) )
1547	ENDIF
1548	ENDIF
1549
1550	!
1551	!-- If required, set the heat flux for the next time step to a random value
1552	IF ( constant_heatflux .AND. random_heatflux ) THEN
1553	IF ( surf_def_h(0)%ns >= 1 ) THEN
1554	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1555	CALL disturb_heatflux( surf_def_h(0) )
1556	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1557	ENDIF
1558	IF ( surf_lsm_h%ns >= 1 ) THEN
1559	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1560	CALL disturb_heatflux( surf_lsm_h )
1561	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1562	ENDIF
1563	IF ( surf_usm_h%ns >= 1 ) THEN
1564	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1565	CALL disturb_heatflux( surf_usm_h )
1566	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1567	ENDIF
1568	ENDIF
1569
1570	!
1571	!-- Execute alle other module actions routunes
1572	CALL module_interface_actions( 'after_timestep' )
1573
1574	!
1575	!-- Determine size of next time step. Save timestep dt_3d because it is
1576	!-- newly calculated in routine timestep, but required further below for
1577	!-- steering the run control output interval
1578	dt_3d_old = dt_3d
1579	CALL timestep
1580
1581	!
1582	!-- Synchronize the timestep in case of nested run.
1583	IF ( nested_run ) THEN
1584	!
1585	!-- Synchronize by unifying the time step.
1586	!-- Global minimum of all time-steps is used for all.
1587	CALL pmci_synchronize
1588	ENDIF
1589
1590	!
1591	!-- Computation and output of run control parameters.
1592	!-- This is also done whenever perturbations have been imposed
1593	IF ( time_run_control >= dt_run_control .OR. &
1594	timestep_scheme(1:5) /= 'runge' .OR. disturbance_created ) &
1595	THEN
1596	CALL run_control
1597	IF ( time_run_control >= dt_run_control ) THEN
1598	time_run_control = MOD( time_run_control, MAX( dt_run_control, dt_3d_old ) )
1599	ENDIF
1600	ENDIF
1601
1602	!
1603	!-- Output elapsed simulated time in form of a progress bar on stdout
1604	IF ( myid == 0 ) CALL output_progress_bar
1605
1606	CALL cpu_log( log_point_s(10), 'timesteps', 'stop' )
1607
1608
1609	ENDDO ! time loop
1610
1611	#if defined( _OPENACC )
1612	CALL exit_surface_arrays
1613	#endif
1614	!$ACC END DATA
1615	!$ACC END DATA
1616	!$ACC END DATA
1617	!$ACC END DATA
1618	!$ACC END DATA
1619	!$ACC END DATA
1620	!$ACC END DATA
1621
1622	!
1623	!-- Vertical nesting: Deallocate variables initialized for vertical nesting
1624	IF ( vnest_init ) CALL vnest_deallocate
1625
1626	IF ( myid == 0 ) CALL finish_progress_bar
1627
1628	CALL location_message( 'atmosphere (and/or ocean) time-stepping', 'finished' )
1629
1630	END SUBROUTINE time_integration

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