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source: palm/trunk/SOURCE/time_integration.f90 @ 4540

Last change on this file since 4540 was 4521, checked in by schwenkel, 4 years ago
add error number
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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 1997-2020 Leibniz Universitaet Hannover
18	!------------------------------------------------------------------------------!
19	!
20	! Current revisions:
21	! ------------------
22	!
23	!
24	! Former revisions:
25	! -----------------
26	! $Id: time_integration.f90 4521 2020-05-06 11:39:49Z raasch $
27	! Rename variable
28	!
29	! 4511 2020-04-30 12:20:40Z raasch
30	! chemistry decycling replaced by explicit setting of lateral boundary conditions
31	!
32	! 4508 2020-04-24 13:32:20Z raasch
33	! salsa decycling replaced by explicit setting of lateral boundary conditions
34	!
35	! 4502 2020-04-17 16:14:16Z schwenkel
36	! Implementation of ice microphysics
37	!
38	! 4472 2020-03-24 12:21:00Z Giersch
39	! OPENACC COPYIN directive for ddx and ddy added
40	!
41	! 4466 2020-03-20 16:14:41Z suehring
42	! Add advection fluxes to ACC copyin
43	!
44	! 4457 2020-03-11 14:20:43Z raasch
45	! use statement for exchange horiz added
46	!
47	! 4444 2020-03-05 15:59:50Z raasch
48	! bugfix: cpp-directives for serial mode added
49	!
50	! 4420 2020-02-24 14:13:56Z maronga
51	! Added output control for wind turbine model
52	!
53	! 4403 2020-02-12 13:08:46Z banzhafs
54	! Allowing both existing and on-demand emission read modes
55	!
56	! 4360 2020-01-07 11:25:50Z suehring
57	! Bugfix, hour_call_emis uninitialized at first call of time_integration
58	!
59	! 4346 2019-12-18 11:55:56Z motisi
60	! Introduction of wall_flags_total_0, which currently sets bits based on static
61	! topography information used in wall_flags_static_0
62	!
63	! 4329 2019-12-10 15:46:36Z motisi
64	! Renamed wall_flags_0 to wall_flags_static_0
65	!
66	! 4281 2019-10-29 15:15:39Z schwenkel
67	! Moved boundary conditions to module interface
68	!
69	! 4276 2019-10-28 16:03:29Z schwenkel
70	! Further modularization of lpm code components
71	!
72	! 4275 2019-10-28 15:34:55Z schwenkel
73	! Move call oft lpm to the end of intermediate timestep loop
74	!
75	! 4268 2019-10-17 11:29:38Z schwenkel
76	! Removing module specific boundary conditions an put them into their modules
77	!
78	! 4227 2019-09-10 18:04:34Z gronemeier
79	! implement new palm_date_time_mod
80	!
81	! 4226 2019-09-10 17:03:24Z suehring
82	! Changes in interface for the offline nesting
83	!
84	! 4182 2019-08-22 15:20:23Z scharf
85	! Corrected "Former revisions" section
86	!
87	! 4170 2019-08-19 17:12:31Z gronemeier
88	! copy diss, diss_p, tdiss_m to GPU
89	!
90	! 4144 2019-08-06 09:11:47Z raasch
91	! relational operators .EQ., .NE., etc. replaced by ==, /=, etc.
92	!
93	! 4126 2019-07-30 11:09:11Z gronemeier
94	! renamed routine to calculate uv exposure
95	!
96	! 4111 2019-07-22 18:16:57Z suehring
97	! advc_flags_1 / advc_flags_2 renamed to advc_flags_m / advc_flags_s
98	!
99	! 4069 2019-07-01 14:05:51Z Giersch
100	! Masked output running index mid has been introduced as a local variable to
101	! avoid runtime error (Loop variable has been modified) in time_integration
102	!
103	! 4064 2019-07-01 05:33:33Z gronemeier
104	! Moved call to radiation module out of intermediate time loop
105	!
106	! 4048 2019-06-21 21:00:21Z knoop
107	! Moved production_e_init call into turbulence_closure_mod
108	!
109	! 4047 2019-06-21 18:58:09Z knoop
110	! Added remainings of swap_timelevel upon its dissolution
111	!
112	! 4043 2019-06-18 16:59:00Z schwenkel
113	! Further LPM modularization
114	!
115	! 4039 2019-06-18 10:32:41Z suehring
116	! Rename subroutines in module for diagnostic quantities
117	!
118	! 4029 2019-06-14 14:04:35Z raasch
119	! exchange of ghost points and boundary conditions separated for chemical species and SALSA module,
120	! bugfix: decycling of chemistry species after nesting data transfer
121	!
122	! 4022 2019-06-12 11:52:39Z suehring
123	! Call synthetic turbulence generator at last RK3 substep right after boundary
124	! conditions are updated in offline nesting in order to assure that
125	! perturbations are always imposed
126	!
127	! 4017 2019-06-06 12:16:46Z schwenkel
128	! Mass (volume) flux correction included to ensure global mass conservation for child domains.
129	!
130	! 3994 2019-05-22 18:08:09Z suehring
131	! output of turbulence intensity added
132	!
133	! 3988 2019-05-22 11:32:37Z kanani
134	! Implement steerable output interval for virtual measurements
135	!
136	! 3968 2019-05-13 11:04:01Z suehring
137	! replace nspec_out with n_matched_vars
138	!
139	! 3929 2019-04-24 12:52:08Z banzhafs
140	! Reverse changes back from revision 3878: use chem_boundary_conds instead of
141	! chem_boundary_conds_decycle
142	!
143	!
144	! 3885 2019-04-11 11:29:34Z kanani
145	! Changes related to global restructuring of location messages and introduction
146	! of additional debug messages
147	!
148	! 3879 2019-04-08 20:25:23Z knoop
149	! Moved wtm_forces to module_interface_actions
150	!
151	! 3872 2019-04-08 15:03:06Z knoop
152	! Modifications made for salsa:
153	! - Call salsa_emission_update at each time step but do the checks within
154	! salsa_emission_update (i.e. skip_time_do_salsa >= time_since_reference_point
155	! and next_aero_emission_update <= time_since_reference_point ).
156	! - Renamed nbins --> nbins_aerosol, ncc_tot --> ncomponents_mass and
157	! ngast --> ngases_salsa and loop indices b, c and sg to ib, ic and ig
158	! - Apply nesting for salsa variables
159	! - Removed cpu_log calls speciffic for salsa.
160	!
161	! 3833 2019-03-28 15:04:04Z forkel
162	! added USE chem_gasphase_mod, replaced nspec by nspec since fixed compounds are not integrated
163	!
164	! 3820 2019-03-27 11:53:41Z forkel
165	! renamed do_emiss to emissions_anthropogenic (ecc)
166	!
167	!
168	! 3774 2019-03-04 10:52:49Z moh.hefny
169	! rephrase if statement to avoid unallocated array in case of
170	! nesting_offline is false (crashing during debug mode)
171	!
172	! 3761 2019-02-25 15:31:42Z raasch $
173	! module section re-formatted and openacc required variables moved to separate section,
174	! re-formatting to 100 char line width
175	!
176	! 3745 2019-02-15 18:57:56Z suehring
177	! Call indoor model after first timestep
178	!
179	! 3744 2019-02-15 18:38:58Z suehring
180	! - Moved call of bio_calculate_thermal_index_maps from biometeorology module to
181	! time_integration to make sure averaged input is updated before calculating.
182	!
183	! 3739 2019-02-13 08:05:17Z dom_dwd_user
184	! Removed everything related to "time_bio_results" as this is never used.
185	!
186	! 3724 2019-02-06 16:28:23Z kanani
187	! Correct double-used log_point_s unit
188	!
189	! 3719 2019-02-06 13:10:18Z kanani
190	! - removed wind_turbine cpu measurement, since same time is measured inside
191	! wtm_forces subroutine as special measures
192	! - moved the numerous vnest cpulog to special measures
193	! - extended radiation cpulog over entire radiation part,
194	! moved radiation_interactions cpulog to special measures
195	! - moved some cpu_log calls to this routine for better overview
196	!
197	! 3705 2019-01-29 19:56:39Z suehring
198	! Data output for virtual measurements added
199	!
200	! 3704 2019-01-29 19:51:41Z suehring
201	! Rename subroutines for surface-data output
202	!
203	! 3647 2019-01-02 14:10:44Z kanani
204	! Bugfix: add time_since_reference_point to IF clause for data_output calls
205	! (otherwise skip_time_* values don't come into affect with dt_do* = 0.0).
206	! Clean up indoor_model and biometeorology model call.
207	!
208	! Revision 1.1 1997/08/11 06:19:04 raasch
209	! Initial revision
210	!
211	!
212	! Description:
213	! ------------
214	!> Integration in time of the model equations, statistical analysis and graphic
215	!> output
216	!------------------------------------------------------------------------------!
217	SUBROUTINE time_integration
218
219
220	USE advec_ws, &
221	ONLY: ws_statistics
222
223	USE arrays_3d, &
224	ONLY: diss, diss_p, dzu, e_p, nc_p, ni_p, nr_p, prho, pt, pt_p, pt_init, q, qc_p, qr_p, &
225	q_init, q_p, qi_p, ref_state, rho_ocean, sa_p, s_p, tend, u, u_p, v, vpt, v_p, w_p
226
227	#if defined( __parallel ) && ! defined( _OPENACC )
228	USE arrays_3d, &
229	ONLY: e, nc, ni, nr, qc, qi, qr, s, w
230	#endif
231
232	USE biometeorology_mod, &
233	ONLY: bio_calculate_thermal_index_maps, thermal_comfort, bio_calculate_uv_exposure, &
234	uv_exposure
235
236	USE bulk_cloud_model_mod, &
237	ONLY: bulk_cloud_model, calc_liquid_water_content, collision_turbulence, &
238	microphysics_ice_phase, microphysics_morrison, microphysics_seifert
239
240	USE calc_mean_profile_mod, &
241	ONLY: calc_mean_profile
242
243	USE chem_emissions_mod, &
244	ONLY: chem_emissions_setup, chem_emissions_update_on_demand
245
246	USE chem_gasphase_mod, &
247	ONLY: nvar
248
249	USE chem_modules, &
250	ONLY: bc_cs_t_val, chem_species, communicator_chem, emissions_anthropogenic, &
251	emiss_read_legacy_mode, n_matched_vars
252
253	USE control_parameters, &
254	ONLY: advected_distance_x, advected_distance_y, air_chemistry, average_count_3d, &
255	averaging_interval, averaging_interval_pr, bc_lr_cyc, bc_ns_cyc, bc_pt_t_val, &
256	bc_q_t_val, biometeorology, call_psolver_at_all_substeps, child_domain, &
257	constant_flux_layer, constant_heatflux, create_disturbances, &
258	dopr_n, constant_diffusion, coupling_mode, coupling_start_time, &
259	current_timestep_number, disturbance_created, disturbance_energy_limit, dist_range, &
260	do_sum, dt_3d, dt_averaging_input, dt_averaging_input_pr, dt_coupling, &
261	dt_data_output_av, dt_disturb, dt_do2d_xy, dt_do2d_xz, dt_do2d_yz, dt_do3d, &
262	dt_domask,dt_dopts, dt_dopr, dt_dopr_listing, dt_dots, dt_run_control, &
263	end_time, first_call_lpm, first_call_mas, galilei_transformation, humidity, &
264	indoor_model, intermediate_timestep_count, intermediate_timestep_count_max, &
265	land_surface, large_scale_forcing, loop_optimization, lsf_surf, lsf_vert, masks, &
266	multi_agent_system_end, multi_agent_system_start, nesting_offline, neutral, &
267	nr_timesteps_this_run, nudging, ocean_mode, passive_scalar, pt_reference, &
268	pt_slope_offset, random_heatflux, rans_tke_e, run_coupled, salsa, &
269	simulated_time, simulated_time_chr, skip_time_do2d_xy, skip_time_do2d_xz, &
270	skip_time_do2d_yz, skip_time_do3d, skip_time_domask, skip_time_dopr, &
271	skip_time_data_output_av, sloping_surface, stop_dt, surface_output, &
272	terminate_coupled, terminate_run, timestep_scheme, time_coupling, time_do2d_xy, &
273	time_do2d_xz, time_do2d_yz, time_do3d, time_domask, time_dopr, time_dopr_av, &
274	time_dopr_listing, time_dopts, time_dosp, time_dosp_av, time_dots, time_do_av, &
275	time_do_sla, time_disturb, time_run_control, time_since_reference_point, &
276	timestep_count, turbulent_inflow, turbulent_outflow, urban_surface, &
277	use_initial_profile_as_reference, use_single_reference_value, u_gtrans, v_gtrans, &
278	virtual_flight, virtual_measurement, ws_scheme_mom, ws_scheme_sca
279
280	#if defined( __parallel )
281	USE control_parameters, &
282	ONLY: rans_mode
283	#endif
284
285	USE cpulog, &
286	ONLY: cpu_log, log_point, log_point_s
287
288	USE diagnostic_output_quantities_mod, &
289	ONLY: doq_calculate, &
290	timestep_number_at_prev_calc
291
292	USE exchange_horiz_mod, &
293	ONLY: exchange_horiz
294
295	USE flight_mod, &
296	ONLY: flight_measurement
297
298	USE grid_variables, &
299	ONLY: ddx, ddy
300
301	USE indices, &
302	ONLY: nbgp, nx, nxl, nxlg, nxr, nxrg, nzb, nzt
303
304	USE indoor_model_mod, &
305	ONLY: dt_indoor, im_main_heatcool, time_indoor
306
307	USE interfaces
308
309	USE kinds
310
311	USE land_surface_model_mod, &
312	ONLY: lsm_boundary_condition, lsm_energy_balance, lsm_soil_model, skip_time_do_lsm
313
314	USE lagrangian_particle_model_mod, &
315	ONLY: lpm_data_output_ptseries
316
317	USE lsf_nudging_mod, &
318	ONLY: calc_tnudge, ls_forcing_surf, ls_forcing_vert, nudge_ref
319
320	USE module_interface, &
321	ONLY: module_interface_actions, module_interface_swap_timelevel, &
322	module_interface_boundary_conditions
323
324	USE multi_agent_system_mod, &
325	ONLY: agents_active, multi_agent_system
326
327	USE nesting_offl_mod, &
328	ONLY: nesting_offl_bc, &
329	nesting_offl_geostrophic_wind, &
330	nesting_offl_input, &
331	nesting_offl_interpolation_factor, &
332	nesting_offl_mass_conservation
333
334	USE netcdf_data_input_mod, &
335	ONLY: chem_emis, chem_emis_att
336
337	USE ocean_mod, &
338	ONLY: prho_reference
339
340	USE palm_date_time_mod, &
341	ONLY: get_date_time
342
343	USE particle_attributes, &
344	ONLY: particle_advection, particle_advection_start, use_sgs_for_particles, wang_kernel
345
346	USE pegrid
347
348	#if defined( __parallel )
349	USE pmc_interface, &
350	ONLY: nested_run, nesting_mode, pmci_boundary_conds, pmci_datatrans, pmci_synchronize, &
351	pmci_ensure_nest_mass_conservation, pmci_ensure_nest_mass_conservation_vertical, &
352	pmci_set_swaplevel
353	#endif
354
355	USE progress_bar, &
356	ONLY: finish_progress_bar, output_progress_bar
357
358	USE prognostic_equations_mod, &
359	ONLY: prognostic_equations_cache, prognostic_equations_vector
360
361	USE radiation_model_mod, &
362	ONLY: dt_radiation, force_radiation_call, radiation, radiation_control, &
363	radiation_interaction, radiation_interactions, skip_time_do_radiation, time_radiation
364
365	USE salsa_mod, &
366	ONLY: aerosol_number, aerosol_mass, bc_am_t_val, bc_an_t_val, bc_gt_t_val, &
367	communicator_salsa, nbins_aerosol, ncomponents_mass, ngases_salsa, &
368	salsa_boundary_conditions, salsa_emission_update, salsa_gas, salsa_gases_from_chem, &
369	skip_time_do_salsa
370
371	USE spectra_mod, &
372	ONLY: average_count_sp, averaging_interval_sp, calc_spectra, dt_dosp, skip_time_dosp
373
374	USE statistics, &
375	ONLY: flow_statistics_called, hom, pr_palm, sums_ls_l
376
377
378	USE surface_layer_fluxes_mod, &
379	ONLY: surface_layer_fluxes
380
381	USE surface_data_output_mod, &
382	ONLY: average_count_surf, averaging_interval_surf, dt_dosurf, dt_dosurf_av, &
383	surface_data_output, surface_data_output_averaging, skip_time_dosurf, &
384	skip_time_dosurf_av, time_dosurf, time_dosurf_av
385
386	USE surface_mod, &
387	ONLY: surf_def_h, surf_lsm_h, surf_usm_h
388
389	USE synthetic_turbulence_generator_mod, &
390	ONLY: dt_stg_call, dt_stg_adjust, parametrize_inflow_turbulence, stg_adjust, stg_main, &
391	time_stg_adjust, time_stg_call, use_syn_turb_gen
392
393	USE turbulence_closure_mod, &
394	ONLY: tcm_diffusivities
395
396	USE urban_surface_mod, &
397	ONLY: usm_boundary_condition, usm_material_heat_model, usm_material_model, &
398	usm_surface_energy_balance, usm_green_heat_model
399
400	USE vertical_nesting_mod, &
401	ONLY: vnested, vnest_init
402
403	#if defined( __parallel )
404	USE vertical_nesting_mod, &
405	ONLY: vnest_anterpolate, vnest_anterpolate_e, vnest_boundary_conds, &
406	vnest_boundary_conds_khkm, vnest_deallocate, vnest_init_fine, vnest_start_time
407	#endif
408
409	USE virtual_measurement_mod, &
410	ONLY: dt_virtual_measurement, &
411	time_virtual_measurement, &
412	vm_data_output, &
413	vm_sampling, &
414	vm_time_start
415
416
417	USE wind_turbine_model_mod, &
418	ONLY: dt_data_output_wtm, time_wtm, wind_turbine, wtm_data_output
419
420	#if defined( _OPENACC )
421	USE arrays_3d, &
422	ONLY: d, dd2zu, ddzu, ddzw, &
423	diss_l_u, &
424	diss_l_v, &
425	diss_l_w, &
426	diss_s_u, &
427	diss_s_v, &
428	diss_s_w, &
429	drho_air, drho_air_zw, dzw, e, &
430	flux_l_u, &
431	flux_l_v, &
432	flux_l_w, &
433	flux_s_u, &
434	flux_s_v, &
435	flux_s_w, &
436	heatflux_output_conversion, &
437	kh, km, momentumflux_output_conversion, nc, ni, nr, p, ptdf_x, ptdf_y, qc, qi, qr, rdf, &
438	rdf_sc, rho_air, rho_air_zw, s, tdiss_m, te_m, tpt_m, tu_m, tv_m, tw_m, ug, u_init, &
439	u_stokes_zu, vg, v_init, v_stokes_zu, w, zu
440
441	USE control_parameters, &
442	ONLY: tsc
443
444	USE indices, &
445	ONLY: advc_flags_m, advc_flags_s, nyn, nyng, nys, nysg, nz, nzb_max, wall_flags_total_0
446
447	USE statistics, &
448	ONLY: rmask, statistic_regions, sums_l, sums_l_l, sums_us2_ws_l, &
449	sums_wsus_ws_l, sums_vs2_ws_l, sums_wsvs_ws_l, sums_ws2_ws_l, sums_wspts_ws_l, &
450	sums_wsqs_ws_l, sums_wssas_ws_l, sums_wsqcs_ws_l, sums_wsqrs_ws_l, sums_wsncs_ws_l, &
451	sums_wsnrs_ws_l, sums_wsss_ws_l, weight_substep, sums_salsa_ws_l, sums_wsqis_ws_l, &
452	sums_wsnis_ws_l
453
454	USE surface_mod, &
455	ONLY: bc_h, enter_surface_arrays, exit_surface_arrays
456	#endif
457
458
459	IMPLICIT NONE
460
461	CHARACTER (LEN=9) :: time_to_string !<
462
463	INTEGER(iwp) :: hour !< hour of current time
464	INTEGER(iwp) :: hour_call_emis = -1 !< last hour where emission was called
465	INTEGER(iwp) :: ib !< index for aerosol size bins
466	INTEGER(iwp) :: ic !< index for aerosol mass bins
467	INTEGER(iwp) :: icc !< additional index for aerosol mass bins
468	INTEGER(iwp) :: ig !< index for salsa gases
469	INTEGER(iwp) :: mid !< masked output running index
470	INTEGER(iwp) :: n !< loop counter for chemistry species
471
472	REAL(wp) :: dt_3d_old !< temporary storage of timestep to be used for
473	!< steering of run control output interval
474	REAL(wp) :: time_since_reference_point_save !< original value of
475	!< time_since_reference_point
476
477
478	!
479	!-- Copy data from arrays_3d
480	!$ACC DATA &
481	!$ACC COPY(d(nzb+1:nzt,nys:nyn,nxl:nxr)) &
482	!$ACC COPY(diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
483	!$ACC COPY(e(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
484	!$ACC COPY(u(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
485	!$ACC COPY(v(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
486	!$ACC COPY(w(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
487	!$ACC COPY(kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
488	!$ACC COPY(km(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
489	!$ACC COPY(p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
490	!$ACC COPY(pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
491
492	!$ACC DATA &
493	!$ACC COPYIN(diss_l_u(0:nz+1,nys:nyn,0), flux_l_u(0:nz+1,nys:nyn,0)) &
494	!$ACC COPYIN(diss_l_v(0:nz+1,nys:nyn,0), flux_l_v(0:nz+1,nys:nyn,0)) &
495	!$ACC COPYIN(diss_l_w(0:nz+1,nys:nyn,0), flux_l_w(0:nz+1,nys:nyn,0)) &
496	!$ACC COPYIN(diss_s_u(0:nz+1,0), flux_s_u(0:nz+1,0)) &
497	!$ACC COPYIN(diss_s_v(0:nz+1,0), flux_s_v(0:nz+1,0)) &
498	!$ACC COPYIN(diss_s_w(0:nz+1,0), flux_s_w(0:nz+1,0)) &
499	!$ACC COPY(diss_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
500	!$ACC COPY(e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
501	!$ACC COPY(u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
502	!$ACC COPY(v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
503	!$ACC COPY(w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
504	!$ACC COPY(pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
505	!$ACC COPY(tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
506	!$ACC COPY(tdiss_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
507	!$ACC COPY(te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
508	!$ACC COPY(tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
509	!$ACC COPY(tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
510	!$ACC COPY(tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
511	!$ACC COPY(tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
512
513	!$ACC DATA &
514	!$ACC COPYIN(rho_air(nzb:nzt+1), drho_air(nzb:nzt+1)) &
515	!$ACC COPYIN(rho_air_zw(nzb:nzt+1), drho_air_zw(nzb:nzt+1)) &
516	!$ACC COPYIN(zu(nzb:nzt+1)) &
517	!$ACC COPYIN(dzu(1:nzt+1), dzw(1:nzt+1)) &
518	!$ACC COPYIN(ddzu(1:nzt+1), dd2zu(1:nzt)) &
519	!$ACC COPYIN(ddzw(1:nzt+1)) &
520	!$ACC COPYIN(heatflux_output_conversion(nzb:nzt+1)) &
521	!$ACC COPYIN(momentumflux_output_conversion(nzb:nzt+1)) &
522	!$ACC COPYIN(rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt)) &
523	!$ACC COPYIN(ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng)) &
524	!$ACC COPYIN(ref_state(0:nz+1)) &
525	!$ACC COPYIN(u_init(0:nz+1), v_init(0:nz+1)) &
526	!$ACC COPYIN(u_stokes_zu(nzb:nzt+1), v_stokes_zu(nzb:nzt+1)) &
527	!$ACC COPYIN(pt_init(0:nz+1)) &
528	!$ACC COPYIN(ug(0:nz+1), vg(0:nz+1))
529
530	!
531	!-- Copy data from control_parameters
532	!$ACC DATA &
533	!$ACC COPYIN(tsc(1:5))
534
535	!
536	!-- Copy data from grid_variables
537	!$ACC DATA &
538	!$ACC COPYIN(ddx, ddy)
539
540	!
541	!-- Copy data from indices
542	!$ACC DATA &
543	!$ACC COPYIN(advc_flags_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
544	!$ACC COPYIN(advc_flags_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
545	!$ACC COPYIN(wall_flags_total_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
546
547	!
548	!-- Copy data from surface_mod
549	!$ACC DATA &
550	!$ACC COPYIN(bc_h(0:1)) &
551	!$ACC COPYIN(bc_h(0)%i(1:bc_h(0)%ns)) &
552	!$ACC COPYIN(bc_h(0)%j(1:bc_h(0)%ns)) &
553	!$ACC COPYIN(bc_h(0)%k(1:bc_h(0)%ns)) &
554	!$ACC COPYIN(bc_h(1)%i(1:bc_h(1)%ns)) &
555	!$ACC COPYIN(bc_h(1)%j(1:bc_h(1)%ns)) &
556	!$ACC COPYIN(bc_h(1)%k(1:bc_h(1)%ns))
557
558	!
559	!-- Copy data from statistics
560	!$ACC DATA &
561	!$ACC COPYIN(hom(0:nz+1,1:2,1:4,0)) &
562	!$ACC COPYIN(rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions)) &
563	!$ACC COPYIN(weight_substep(1:intermediate_timestep_count_max)) &
564	!$ACC COPY(sums_l(nzb:nzt+1,1:pr_palm,0)) &
565	!$ACC COPY(sums_l_l(nzb:nzt+1,0:statistic_regions,0)) &
566	!$ACC COPY(sums_us2_ws_l(nzb:nzt+1,0)) &
567	!$ACC COPY(sums_wsus_ws_l(nzb:nzt+1,0)) &
568	!$ACC COPY(sums_vs2_ws_l(nzb:nzt+1,0)) &
569	!$ACC COPY(sums_wsvs_ws_l(nzb:nzt+1,0)) &
570	!$ACC COPY(sums_ws2_ws_l(nzb:nzt+1,0)) &
571	!$ACC COPY(sums_wspts_ws_l(nzb:nzt+1,0)) &
572	!$ACC COPY(sums_wssas_ws_l(nzb:nzt+1,0)) &
573	!$ACC COPY(sums_wsqs_ws_l(nzb:nzt+1,0)) &
574	!$ACC COPY(sums_wsqcs_ws_l(nzb:nzt+1,0)) &
575	!$ACC COPY(sums_wsqis_ws_l(nzb:nzt+1,0)) &
576	!$ACC COPY(sums_wsqrs_ws_l(nzb:nzt+1,0)) &
577	!$ACC COPY(sums_wsncs_ws_l(nzb:nzt+1,0)) &
578	!$ACC COPY(sums_wsnis_ws_l(nzb:nzt+1,0)) &
579	!$ACC COPY(sums_wsnrs_ws_l(nzb:nzt+1,0)) &
580	!$ACC COPY(sums_wsss_ws_l(nzb:nzt+1,0)) &
581	!$ACC COPY(sums_salsa_ws_l(nzb:nzt+1,0))
582
583	!
584	!-- Next statement is to avoid compiler warnings about unused variables. Please
585	!-- remove in case that you are using them. ddx and ddy need to be defined in
586	!-- time_integration because of ACC COPYIN directive.
587	ddx = ddx
588	ddy = ddy
589
590	#if defined( _OPENACC )
591	CALL enter_surface_arrays
592	#endif
593
594	!
595	!-- At beginning determine the first time step
596	CALL timestep
597
598	#if defined( __parallel )
599	!
600	!-- Synchronize the timestep in case of nested run.
601	IF ( nested_run ) THEN
602	!
603	!-- Synchronization by unifying the time step.
604	!-- Global minimum of all time-steps is used for all.
605	CALL pmci_synchronize
606	ENDIF
607	#endif
608
609	!
610	!-- Determine and print out the run control quantities before the first time
611	!-- step of this run. For the initial run, some statistics (e.g. divergence)
612	!-- need to be determined first --> CALL flow_statistics at the beginning of
613	!-- run_control
614	CALL run_control
615	!
616	!-- Data exchange between coupled models in case that a call has been omitted
617	!-- at the end of the previous run of a job chain.
618	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled .AND. .NOT. vnested ) THEN
619	!
620	!-- In case of model termination initiated by the local model the coupler
621	!-- must not be called because this would again cause an MPI hang.
622	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
623	CALL surface_coupler
624	time_coupling = time_coupling - dt_coupling
625	ENDDO
626	IF (time_coupling == 0.0_wp .AND. time_since_reference_point < dt_coupling ) THEN
627	time_coupling = time_since_reference_point
628	ENDIF
629	ENDIF
630
631	CALL location_message( 'atmosphere (and/or ocean) time-stepping', 'start' )
632
633	!
634	!-- Start of the time loop
635	DO WHILE ( simulated_time < end_time .AND. .NOT. stop_dt .AND. .NOT. terminate_run )
636
637	CALL cpu_log( log_point_s(10), 'timesteps', 'start' )
638
639	#if defined( __parallel )
640	!
641	!-- Vertical nesting: initialize fine grid
642	IF ( vnested ) THEN
643	IF ( .NOT. vnest_init .AND. simulated_time >= vnest_start_time ) THEN
644	CALL cpu_log( log_point_s(22), 'vnest_init', 'start' )
645	CALL vnest_init_fine
646	vnest_init = .TRUE.
647	CALL cpu_log( log_point_s(22), 'vnest_init', 'stop' )
648	ENDIF
649	ENDIF
650	#endif
651
652	!
653	!-- Determine ug, vg and w_subs in dependence on data from external file
654	!-- LSF_DATA
655	IF ( large_scale_forcing .AND. lsf_vert ) THEN
656	CALL ls_forcing_vert ( simulated_time )
657	sums_ls_l = 0.0_wp
658	ENDIF
659
660	!
661	!-- Set pt_init and q_init to the current profiles taken from
662	!-- NUDGING_DATA
663	IF ( nudging ) THEN
664	CALL nudge_ref ( simulated_time )
665	!
666	!-- Store temperature gradient at the top boundary for possible Neumann
667	!-- boundary condition
668	bc_pt_t_val = ( pt_init(nzt+1) - pt_init(nzt) ) / dzu(nzt+1)
669	bc_q_t_val = ( q_init(nzt+1) - q_init(nzt) ) / dzu(nzt+1)
670	IF ( air_chemistry ) THEN
671	DO n = 1, nvar
672	bc_cs_t_val = ( chem_species(n)%conc_pr_init(nzt+1) &
673	- chem_species(n)%conc_pr_init(nzt) ) &
674	/ dzu(nzt+1)
675	ENDDO
676	ENDIF
677	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
678	DO ib = 1, nbins_aerosol
679	bc_an_t_val = ( aerosol_number(ib)%init(nzt+1) - aerosol_number(ib)%init(nzt) ) / &
680	dzu(nzt+1)
681	DO ic = 1, ncomponents_mass
682	icc = ( ic - 1 ) * nbins_aerosol + ib
683	bc_am_t_val = ( aerosol_mass(icc)%init(nzt+1) - aerosol_mass(icc)%init(nzt) ) /&
684	dzu(nzt+1)
685	ENDDO
686	ENDDO
687	IF ( .NOT. salsa_gases_from_chem ) THEN
688	DO ig = 1, ngases_salsa
689	bc_gt_t_val = ( salsa_gas(ig)%init(nzt+1) - salsa_gas(ig)%init(nzt) ) / &
690	dzu(nzt+1)
691	ENDDO
692	ENDIF
693	ENDIF
694	ENDIF
695	!
696	!-- Input of boundary data.
697	IF ( nesting_offline ) CALL nesting_offl_input
698	!
699	!-- Execute all other module actions routines
700	CALL module_interface_actions( 'before_timestep' )
701
702	!
703	!-- Start of intermediate step loop
704	intermediate_timestep_count = 0
705	DO WHILE ( intermediate_timestep_count < intermediate_timestep_count_max )
706
707	intermediate_timestep_count = intermediate_timestep_count + 1
708
709	!
710	!-- Set the steering factors for the prognostic equations which depend
711	!-- on the timestep scheme
712	CALL timestep_scheme_steering
713
714	!
715	!-- Calculate those variables needed in the tendency terms which need
716	!-- global communication
717	IF ( .NOT. use_single_reference_value .AND. .NOT. use_initial_profile_as_reference ) &
718	THEN
719	!
720	!-- Horizontally averaged profiles to be used as reference state in
721	!-- buoyancy terms (WARNING: only the respective last call of
722	!-- calc_mean_profile defines the reference state!)
723	IF ( .NOT. neutral ) THEN
724	CALL calc_mean_profile( pt, 4 )
725	ref_state(:) = hom(:,1,4,0) ! this is used in the buoyancy term
726	ENDIF
727	IF ( ocean_mode ) THEN
728	CALL calc_mean_profile( rho_ocean, 64 )
729	ref_state(:) = hom(:,1,64,0)
730	ENDIF
731	IF ( humidity ) THEN
732	CALL calc_mean_profile( vpt, 44 )
733	ref_state(:) = hom(:,1,44,0)
734	ENDIF
735	!
736	!-- Assure that ref_state does not become zero at any level
737	!-- ( might be the case if a vertical level is completely occupied
738	!-- with topography ).
739	ref_state = MERGE( MAXVAL(ref_state), ref_state, ref_state == 0.0_wp )
740	ENDIF
741
742	IF ( ( ws_scheme_mom .OR. ws_scheme_sca ) .AND. intermediate_timestep_count == 1 ) &
743	THEN
744	CALL ws_statistics
745	ENDIF
746	!
747	!-- In case of nudging calculate current nudging time scale and horizontal
748	!-- means of u, v, pt and q
749	IF ( nudging ) THEN
750	CALL calc_tnudge( simulated_time )
751	CALL calc_mean_profile( u, 1 )
752	CALL calc_mean_profile( v, 2 )
753	CALL calc_mean_profile( pt, 4 )
754	CALL calc_mean_profile( q, 41 )
755	ENDIF
756	!
757	!-- Execute all other module actions routunes
758	CALL module_interface_actions( 'before_prognostic_equations' )
759	!
760	!-- Solve the prognostic equations. A fast cache optimized version with
761	!-- only one single loop is used in case of Piascek-Williams advection
762	!-- scheme. NEC vector machines use a different version, because
763	!-- in the other versions a good vectorization is prohibited due to
764	!-- inlining problems.
765	IF ( loop_optimization == 'cache' ) THEN
766	CALL prognostic_equations_cache
767	ELSEIF ( loop_optimization == 'vector' ) THEN
768	CALL prognostic_equations_vector
769	ENDIF
770
771	!
772	!-- Movement of agents in multi agent system
773	IF ( agents_active .AND. time_since_reference_point >= multi_agent_system_start .AND. &
774	time_since_reference_point <= multi_agent_system_end .AND. &
775	intermediate_timestep_count == 1 ) &
776	THEN
777	CALL multi_agent_system
778	first_call_mas = .FALSE.
779	ENDIF
780
781	!
782	!-- Exchange of ghost points (lateral boundary conditions)
783	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'start' )
784
785	CALL exchange_horiz( u_p, nbgp )
786	CALL exchange_horiz( v_p, nbgp )
787	CALL exchange_horiz( w_p, nbgp )
788	CALL exchange_horiz( pt_p, nbgp )
789	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
790	IF ( rans_tke_e .OR. wang_kernel .OR. collision_turbulence &
791	.OR. use_sgs_for_particles ) THEN
792	IF ( rans_tke_e ) THEN
793	CALL exchange_horiz( diss_p, nbgp )
794	ELSE
795	CALL exchange_horiz( diss, nbgp )
796	ENDIF
797	ENDIF
798	IF ( ocean_mode ) THEN
799	CALL exchange_horiz( sa_p, nbgp )
800	CALL exchange_horiz( rho_ocean, nbgp )
801	CALL exchange_horiz( prho, nbgp )
802	ENDIF
803	IF ( humidity ) THEN
804	CALL exchange_horiz( q_p, nbgp )
805	IF ( bulk_cloud_model .AND. microphysics_morrison ) THEN
806	CALL exchange_horiz( qc_p, nbgp )
807	CALL exchange_horiz( nc_p, nbgp )
808	ENDIF
809	IF ( bulk_cloud_model .AND. microphysics_seifert ) THEN
810	CALL exchange_horiz( qr_p, nbgp )
811	CALL exchange_horiz( nr_p, nbgp )
812	ENDIF
813	IF ( bulk_cloud_model .AND. microphysics_ice_phase ) THEN
814	CALL exchange_horiz( qi_p, nbgp )
815	CALL exchange_horiz( ni_p, nbgp )
816	ENDIF
817	ENDIF
818	IF ( passive_scalar ) CALL exchange_horiz( s_p, nbgp )
819	IF ( air_chemistry ) THEN
820	DO n = 1, nvar
821	CALL exchange_horiz( chem_species(n)%conc_p, nbgp, &
822	alternative_communicator = communicator_chem )
823	ENDDO
824	ENDIF
825
826	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
827	DO ib = 1, nbins_aerosol
828	CALL exchange_horiz( aerosol_number(ib)%conc_p, nbgp, &
829	alternative_communicator = communicator_salsa )
830	DO ic = 1, ncomponents_mass
831	icc = ( ic - 1 ) * nbins_aerosol + ib
832	CALL exchange_horiz( aerosol_mass(icc)%conc_p, nbgp, &
833	alternative_communicator = communicator_salsa )
834	ENDDO
835	ENDDO
836	IF ( .NOT. salsa_gases_from_chem ) THEN
837	DO ig = 1, ngases_salsa
838	CALL exchange_horiz( salsa_gas(ig)%conc_p, nbgp, &
839	alternative_communicator = communicator_salsa )
840	ENDDO
841	ENDIF
842	ENDIF
843
844	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'stop' )
845
846	!
847	!-- Boundary conditions for the prognostic quantities (except of the
848	!-- velocities at the outflow in case of a non-cyclic lateral wall) and
849	!-- boundary conditions for module-specific variables
850	CALL module_interface_boundary_conditions
851
852	!
853	!-- Incrementing timestep counter
854	timestep_count = timestep_count + 1
855
856	CALL cpu_log( log_point(28), 'swap_timelevel', 'start' )
857	!
858	!-- Set the swap level for all modules
859	CALL module_interface_swap_timelevel( MOD( timestep_count, 2) )
860
861	#if defined( __parallel )
862	!
863	!-- Set the swap level for steering the pmc data transfer
864	IF ( nested_run ) CALL pmci_set_swaplevel( MOD( timestep_count, 2) + 1 ) !> @todo: why the +1 ?
865	#endif
866
867	CALL cpu_log( log_point(28), 'swap_timelevel', 'stop' )
868
869	#if defined( __parallel )
870	!
871	!-- Vertical nesting: Interpolate fine grid data to the coarse grid
872	IF ( vnest_init ) THEN
873	CALL cpu_log( log_point_s(37), 'vnest_anterpolate', 'start' )
874	CALL vnest_anterpolate
875	CALL cpu_log( log_point_s(37), 'vnest_anterpolate', 'stop' )
876	ENDIF
877
878	IF ( nested_run ) THEN
879
880	CALL cpu_log( log_point(60), 'nesting', 'start' )
881	!
882	!-- Domain nesting. The data transfer subroutines pmci_parent_datatrans
883	!-- and pmci_child_datatrans are called inside the wrapper
884	!-- subroutine pmci_datatrans according to the control parameters
885	!-- nesting_mode and nesting_datatransfer_mode.
886	!-- TO_DO: why is nesting_mode given as a parameter here?
887	CALL pmci_datatrans( nesting_mode )
888
889	IF ( TRIM( nesting_mode ) == 'two-way' .OR. nesting_mode == 'vertical' ) THEN
890
891	CALL cpu_log( log_point_s(92), 'exchange-horiz-nest', 'start' )
892	!
893	!-- Exchange_horiz is needed for all parent-domains after the
894	!-- anterpolation
895	CALL exchange_horiz( u, nbgp )
896	CALL exchange_horiz( v, nbgp )
897	CALL exchange_horiz( w, nbgp )
898	IF ( .NOT. neutral ) CALL exchange_horiz( pt, nbgp )
899
900	IF ( humidity ) THEN
901
902	CALL exchange_horiz( q, nbgp )
903
904	IF ( bulk_cloud_model .AND. microphysics_morrison ) THEN
905	CALL exchange_horiz( qc, nbgp )
906	CALL exchange_horiz( nc, nbgp )
907	ENDIF
908	IF ( bulk_cloud_model .AND. microphysics_seifert ) THEN
909	CALL exchange_horiz( qr, nbgp )
910	CALL exchange_horiz( nr, nbgp )
911	ENDIF
912	IF ( bulk_cloud_model .AND. microphysics_ice_phase ) THEN
913	CALL exchange_horiz( qi, nbgp )
914	CALL exchange_horiz( ni, nbgp )
915	ENDIF
916
917	ENDIF
918
919	IF ( passive_scalar ) CALL exchange_horiz( s, nbgp )
920
921	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e, nbgp )
922
923	IF ( .NOT. constant_diffusion .AND. rans_mode .AND. rans_tke_e ) THEN
924	CALL exchange_horiz( diss, nbgp )
925	ENDIF
926
927	IF ( air_chemistry ) THEN
928	DO n = 1, nvar
929	CALL exchange_horiz( chem_species(n)%conc, nbgp, &
930	alternative_communicator = communicator_chem )
931	ENDDO
932	ENDIF
933
934	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
935	DO ib = 1, nbins_aerosol
936	CALL exchange_horiz( aerosol_number(ib)%conc, nbgp, &
937	alternative_communicator = communicator_salsa )
938	DO ic = 1, ncomponents_mass
939	icc = ( ic - 1 ) * nbins_aerosol + ib
940	CALL exchange_horiz( aerosol_mass(icc)%conc, nbgp, &
941	alternative_communicator = communicator_salsa )
942	ENDDO
943	ENDDO
944	IF ( .NOT. salsa_gases_from_chem ) THEN
945	DO ig = 1, ngases_salsa
946	CALL exchange_horiz( salsa_gas(ig)%conc, nbgp, &
947	alternative_communicator = communicator_salsa )
948	ENDDO
949	ENDIF
950	ENDIF
951	CALL cpu_log( log_point_s(92), 'exchange-horiz-nest', 'stop' )
952
953	ENDIF
954
955	!
956	!-- Set boundary conditions again after interpolation and anterpolation.
957	CALL pmci_boundary_conds
958
959	CALL cpu_log( log_point(60), 'nesting', 'stop' )
960
961	ENDIF
962	#endif
963
964	!
965	!-- Temperature offset must be imposed at cyclic boundaries in x-direction
966	!-- when a sloping surface is used
967	IF ( sloping_surface ) THEN
968	IF ( nxl == 0 ) pt(:,:,nxlg:nxl-1) = pt(:,:,nxlg:nxl-1) - pt_slope_offset
969	IF ( nxr == nx ) pt(:,:,nxr+1:nxrg) = pt(:,:,nxr+1:nxrg) + pt_slope_offset
970	ENDIF
971
972	!
973	!-- Impose a turbulent inflow using the recycling method
974	IF ( turbulent_inflow ) CALL inflow_turbulence
975
976	!
977	!-- Set values at outflow boundary using the special outflow condition
978	IF ( turbulent_outflow ) CALL outflow_turbulence
979
980	!
981	!-- Impose a random perturbation on the horizontal velocity field
982	IF ( create_disturbances .AND. ( call_psolver_at_all_substeps .AND. &
983	intermediate_timestep_count == intermediate_timestep_count_max ) &
984	.OR. ( .NOT. call_psolver_at_all_substeps .AND. intermediate_timestep_count == 1 ) ) &
985	THEN
986	time_disturb = time_disturb + dt_3d
987	IF ( time_disturb >= dt_disturb ) THEN
988	IF ( disturbance_energy_limit /= 0.0_wp .AND. &
989	hom(nzb+5,1,pr_palm,0) < disturbance_energy_limit ) THEN
990	CALL disturb_field( 'u', tend, u )
991	CALL disturb_field( 'v', tend, v )
992	ELSEIF ( ( .NOT. bc_lr_cyc .OR. .NOT. bc_ns_cyc ) &
993	.AND. .NOT. child_domain .AND. .NOT. nesting_offline ) &
994	THEN
995	!
996	!-- Runs with a non-cyclic lateral wall need perturbations
997	!-- near the inflow throughout the whole simulation
998	dist_range = 1
999	CALL disturb_field( 'u', tend, u )
1000	CALL disturb_field( 'v', tend, v )
1001	dist_range = 0
1002	ENDIF
1003	time_disturb = time_disturb - dt_disturb
1004	ENDIF
1005	ENDIF
1006
1007	!
1008	!-- Map forcing data derived from larger scale model onto domain
1009	!-- boundaries. Further, update geostrophic wind components.
1010	IF ( nesting_offline .AND. intermediate_timestep_count == &
1011	intermediate_timestep_count_max ) THEN
1012	!-- Determine interpolation factor before boundary conditions and geostrophic wind
1013	!-- is updated.
1014	CALL nesting_offl_interpolation_factor
1015	CALL nesting_offl_bc
1016	CALL nesting_offl_geostrophic_wind
1017	ENDIF
1018	!
1019	!-- Impose a turbulent inflow using synthetic generated turbulence.
1020	IF ( use_syn_turb_gen .AND. &
1021	intermediate_timestep_count == intermediate_timestep_count_max ) THEN
1022	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'start' )
1023	CALL stg_main
1024	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'stop' )
1025	ENDIF
1026	!
1027	!-- Ensure mass conservation. This need to be done after imposing
1028	!-- synthetic turbulence and top boundary condition for pressure is set to
1029	!-- Neumann conditions.
1030	!-- Is this also required in case of Dirichlet?
1031	IF ( nesting_offline ) CALL nesting_offl_mass_conservation
1032	!
1033	!-- Reduce the velocity divergence via the equation for perturbation
1034	!-- pressure.
1035	IF ( intermediate_timestep_count == 1 .OR. &
1036	call_psolver_at_all_substeps ) THEN
1037
1038	IF ( vnest_init ) THEN
1039	#if defined( __parallel )
1040	!
1041	!-- Compute pressure in the CG, interpolate top boundary conditions
1042	!-- to the FG and then compute pressure in the FG
1043	IF ( coupling_mode == 'vnested_crse' ) CALL pres
1044
1045	CALL cpu_log( log_point_s(30), 'vnest_bc', 'start' )
1046	CALL vnest_boundary_conds
1047	CALL cpu_log( log_point_s(30), 'vnest_bc', 'stop' )
1048
1049	IF ( coupling_mode == 'vnested_fine' ) CALL pres
1050
1051	!-- Anterpolate TKE, satisfy Germano Identity
1052	CALL cpu_log( log_point_s(28), 'vnest_anter_e', 'start' )
1053	CALL vnest_anterpolate_e
1054	CALL cpu_log( log_point_s(28), 'vnest_anter_e', 'stop' )
1055	#else
1056	CONTINUE
1057	#endif
1058
1059	ELSE
1060	#if defined( __parallel )
1061	!
1062	!-- Mass (volume) flux correction to ensure global mass conservation for child domains.
1063	IF ( child_domain ) THEN
1064	IF ( nesting_mode == 'vertical' ) THEN
1065	CALL pmci_ensure_nest_mass_conservation_vertical
1066	ELSE
1067	CALL pmci_ensure_nest_mass_conservation
1068	ENDIF
1069	ENDIF
1070	#endif
1071	CALL pres
1072
1073	ENDIF
1074
1075	ENDIF
1076	!
1077	!-- Particle transport/physics with the Lagrangian particle model
1078	!-- (only once during intermediate steps, because it uses an Euler-step)
1079	!-- ### particle model should be moved before prognostic_equations, in order
1080	!-- to regard droplet interactions directly
1081
1082	CALL module_interface_actions( 'after_pressure_solver' )
1083	!
1084	!-- Interaction of droplets with temperature and mixing ratio.
1085	!-- Droplet condensation and evaporation is calculated within
1086	!-- advec_particles.
1087	!
1088	!-- If required, compute liquid water content
1089	IF ( bulk_cloud_model ) THEN
1090	CALL calc_liquid_water_content
1091	ENDIF
1092	!
1093	!-- If required, compute virtual potential temperature
1094	IF ( humidity ) THEN
1095	CALL compute_vpt
1096	ENDIF
1097
1098	!
1099	!-- Compute the diffusion quantities
1100	IF ( .NOT. constant_diffusion ) THEN
1101
1102	!
1103	!-- Determine surface fluxes shf and qsws and surface values
1104	!-- pt_surface and q_surface in dependence on data from external
1105	!-- file LSF_DATA respectively
1106	IF ( ( large_scale_forcing .AND. lsf_surf ) .AND. &
1107	intermediate_timestep_count == intermediate_timestep_count_max ) &
1108	THEN
1109	CALL ls_forcing_surf( simulated_time )
1110	ENDIF
1111
1112	!
1113	!-- First the vertical (and horizontal) fluxes in the surface
1114	!-- (constant flux) layer are computed
1115	IF ( constant_flux_layer ) THEN
1116	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'start' )
1117	CALL surface_layer_fluxes
1118	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'stop' )
1119	ENDIF
1120	!
1121	!-- If required, solve the energy balance for the surface and run soil
1122	!-- model. Call for horizontal as well as vertical surfaces
1123	IF ( land_surface .AND. time_since_reference_point >= skip_time_do_lsm) THEN
1124
1125	CALL cpu_log( log_point(54), 'land_surface', 'start' )
1126	!
1127	!-- Call for horizontal upward-facing surfaces
1128	CALL lsm_energy_balance( .TRUE., -1 )
1129	CALL lsm_soil_model( .TRUE., -1, .TRUE. )
1130	!
1131	!-- Call for northward-facing surfaces
1132	CALL lsm_energy_balance( .FALSE., 0 )
1133	CALL lsm_soil_model( .FALSE., 0, .TRUE. )
1134	!
1135	!-- Call for southward-facing surfaces
1136	CALL lsm_energy_balance( .FALSE., 1 )
1137	CALL lsm_soil_model( .FALSE., 1, .TRUE. )
1138	!
1139	!-- Call for eastward-facing surfaces
1140	CALL lsm_energy_balance( .FALSE., 2 )
1141	CALL lsm_soil_model( .FALSE., 2, .TRUE. )
1142	!
1143	!-- Call for westward-facing surfaces
1144	CALL lsm_energy_balance( .FALSE., 3 )
1145	CALL lsm_soil_model( .FALSE., 3, .TRUE. )
1146
1147	!
1148	!-- At the end, set boundary conditons for potential temperature
1149	!-- and humidity after running the land-surface model. This
1150	!-- might be important for the nesting, where arrays are transfered.
1151	CALL lsm_boundary_condition
1152
1153
1154	CALL cpu_log( log_point(54), 'land_surface', 'stop' )
1155	ENDIF
1156	!
1157	!-- If required, solve the energy balance for urban surfaces and run
1158	!-- the material heat model
1159	IF (urban_surface) THEN
1160	CALL cpu_log( log_point(74), 'urban_surface', 'start' )
1161
1162	CALL usm_surface_energy_balance( .FALSE. )
1163	IF ( usm_material_model ) THEN
1164	CALL usm_green_heat_model
1165	CALL usm_material_heat_model ( .FALSE. )
1166	ENDIF
1167
1168	!
1169	!-- At the end, set boundary conditons for potential temperature
1170	!-- and humidity after running the urban-surface model. This
1171	!-- might be important for the nesting, where arrays are transfered.
1172	CALL usm_boundary_condition
1173
1174	CALL cpu_log( log_point(74), 'urban_surface', 'stop' )
1175	ENDIF
1176	!
1177	!-- Compute the diffusion coefficients
1178	CALL cpu_log( log_point(17), 'diffusivities', 'start' )
1179	IF ( .NOT. humidity ) THEN
1180	IF ( ocean_mode ) THEN
1181	CALL tcm_diffusivities( prho, prho_reference )
1182	ELSE
1183	CALL tcm_diffusivities( pt, pt_reference )
1184	ENDIF
1185	ELSE
1186	CALL tcm_diffusivities( vpt, pt_reference )
1187	ENDIF
1188	CALL cpu_log( log_point(17), 'diffusivities', 'stop' )
1189
1190	#if defined( __parallel )
1191	!
1192	!-- Vertical nesting: set fine grid eddy viscosity top boundary condition
1193	IF ( vnest_init ) CALL vnest_boundary_conds_khkm
1194	#endif
1195
1196	ENDIF
1197
1198	ENDDO ! Intermediate step loop
1199
1200	!
1201	!-- Will be used at some point by flow_statistics.
1202	!$ACC UPDATE &
1203	!$ACC HOST(sums_l_l(nzb:nzt+1,0:statistic_regions,0)) &
1204	!$ACC HOST(sums_us2_ws_l(nzb:nzt+1,0)) &
1205	!$ACC HOST(sums_wsus_ws_l(nzb:nzt+1,0)) &
1206	!$ACC HOST(sums_vs2_ws_l(nzb:nzt+1,0)) &
1207	!$ACC HOST(sums_wsvs_ws_l(nzb:nzt+1,0)) &
1208	!$ACC HOST(sums_ws2_ws_l(nzb:nzt+1,0)) &
1209	!$ACC HOST(sums_wspts_ws_l(nzb:nzt+1,0)) &
1210	!$ACC HOST(sums_wssas_ws_l(nzb:nzt+1,0)) &
1211	!$ACC HOST(sums_wsqs_ws_l(nzb:nzt+1,0)) &
1212	!$ACC HOST(sums_wsqcs_ws_l(nzb:nzt+1,0)) &
1213	!$ACC HOST(sums_wsqis_ws_l(nzb:nzt+1,0)) &
1214	!$ACC HOST(sums_wsqrs_ws_l(nzb:nzt+1,0)) &
1215	!$ACC HOST(sums_wsncs_ws_l(nzb:nzt+1,0)) &
1216	!$ACC HOST(sums_wsnis_ws_l(nzb:nzt+1,0)) &
1217	!$ACC HOST(sums_wsnrs_ws_l(nzb:nzt+1,0)) &
1218	!$ACC HOST(sums_wsss_ws_l(nzb:nzt+1,0)) &
1219	!$ACC HOST(sums_salsa_ws_l(nzb:nzt+1,0))
1220
1221	!
1222	!-- If required, calculate radiative fluxes and heating rates
1223	IF ( radiation .AND. time_since_reference_point > skip_time_do_radiation ) THEN
1224
1225	time_radiation = time_radiation + dt_3d
1226
1227	IF ( time_radiation >= dt_radiation .OR. force_radiation_call ) THEN
1228
1229	CALL cpu_log( log_point(50), 'radiation', 'start' )
1230
1231	IF ( .NOT. force_radiation_call ) THEN
1232	time_radiation = time_radiation - dt_radiation
1233	ENDIF
1234
1235	!
1236	!-- Adjust the current time to the time step of the radiation model.
1237	!-- Needed since radiation is pre-calculated and stored only on apparent
1238	!-- solar positions
1239	time_since_reference_point_save = time_since_reference_point
1240	time_since_reference_point = REAL( FLOOR( time_since_reference_point / &
1241	dt_radiation ), wp ) * dt_radiation
1242
1243	CALL radiation_control
1244
1245	IF ( ( urban_surface .OR. land_surface ) .AND. radiation_interactions ) THEN
1246	CALL cpu_log( log_point_s(46), 'radiation_interaction', 'start' )
1247	CALL radiation_interaction
1248	CALL cpu_log( log_point_s(46), 'radiation_interaction', 'stop' )
1249	ENDIF
1250
1251	!
1252	!-- Return the current time to its original value
1253	time_since_reference_point = time_since_reference_point_save
1254
1255	CALL cpu_log( log_point(50), 'radiation', 'stop' )
1256
1257	ENDIF
1258	ENDIF
1259
1260
1261	!
1262	!-- 20200203 (ECC)
1263	!-- allows for emission update mode in legacy mode as well as on-demand mode
1264	!-- note that under on-demand mode emission update is no longer restricted to
1265	!-- an hourly frequency, but whenever the simulation time corresponds to an
1266	!-- inrement in emission timestamp value
1267
1268	!
1269	!-- If required, consider chemical emissions
1270
1271	IF ( air_chemistry .AND. emissions_anthropogenic ) THEN
1272
1273	IF ( emiss_read_legacy_mode ) THEN
1274	!
1275	!-- get hourly index and updates emission data when the hour is passed
1276
1277	CALL get_date_time( time_since_reference_point, hour=hour )
1278
1279	IF ( hour_call_emis /= hour ) THEN
1280
1281	CALL chem_emissions_setup( chem_emis_att, chem_emis, n_matched_vars )
1282	hour_call_emis = hour
1283
1284	ENDIF
1285
1286	ELSE
1287
1288	CALL chem_emissions_update_on_demand
1289
1290	ENDIF
1291
1292	ENDIF
1293
1294
1295	!
1296	!-- If required, consider aerosol emissions for the salsa model
1297	IF ( salsa ) THEN
1298	!
1299	!-- Call emission routine to update emissions if needed
1300	CALL salsa_emission_update
1301
1302	ENDIF
1303	!
1304	!-- If required, calculate indoor temperature, waste heat, heat flux
1305	!-- through wall, etc.
1306	!-- dt_indoor steers the frequency of the indoor model calculations.
1307	!-- Note, at first timestep indoor model is called, in order to provide
1308	!-- a waste heat flux.
1309	IF ( indoor_model ) THEN
1310
1311	time_indoor = time_indoor + dt_3d
1312
1313	IF ( time_indoor >= dt_indoor .OR. current_timestep_number == 0 ) THEN
1314
1315	time_indoor = time_indoor - dt_indoor
1316
1317	CALL cpu_log( log_point(76), 'indoor_model', 'start' )
1318	CALL im_main_heatcool
1319	CALL cpu_log( log_point(76), 'indoor_model', 'stop' )
1320
1321	ENDIF
1322	ENDIF
1323	!
1324	!-- Increase simulation time and output times
1325	nr_timesteps_this_run = nr_timesteps_this_run + 1
1326	current_timestep_number = current_timestep_number + 1
1327	simulated_time = simulated_time + dt_3d
1328	time_since_reference_point = simulated_time - coupling_start_time
1329	simulated_time_chr = time_to_string( time_since_reference_point )
1330
1331
1332	IF ( time_since_reference_point >= skip_time_data_output_av ) THEN
1333	time_do_av = time_do_av + dt_3d
1334	ENDIF
1335	IF ( time_since_reference_point >= skip_time_do2d_xy ) THEN
1336	time_do2d_xy = time_do2d_xy + dt_3d
1337	ENDIF
1338	IF ( time_since_reference_point >= skip_time_do2d_xz ) THEN
1339	time_do2d_xz = time_do2d_xz + dt_3d
1340	ENDIF
1341	IF ( time_since_reference_point >= skip_time_do2d_yz ) THEN
1342	time_do2d_yz = time_do2d_yz + dt_3d
1343	ENDIF
1344	IF ( time_since_reference_point >= skip_time_do3d ) THEN
1345	time_do3d = time_do3d + dt_3d
1346	ENDIF
1347	DO mid = 1, masks
1348	IF ( time_since_reference_point >= skip_time_domask(mid) ) THEN
1349	time_domask(mid)= time_domask(mid) + dt_3d
1350	ENDIF
1351	ENDDO
1352	IF ( time_since_reference_point >= skip_time_dosp ) THEN
1353	time_dosp = time_dosp + dt_3d
1354	ENDIF
1355	time_dots = time_dots + dt_3d
1356	IF ( .NOT. first_call_lpm ) THEN
1357	time_dopts = time_dopts + dt_3d
1358	ENDIF
1359	IF ( time_since_reference_point >= skip_time_dopr ) THEN
1360	time_dopr = time_dopr + dt_3d
1361	ENDIF
1362	time_dopr_listing = time_dopr_listing + dt_3d
1363	time_run_control = time_run_control + dt_3d
1364	!
1365	!-- Increment time-counter for surface output
1366	IF ( surface_output ) THEN
1367	IF ( time_since_reference_point >= skip_time_dosurf ) THEN
1368	time_dosurf = time_dosurf + dt_3d
1369	ENDIF
1370	IF ( time_since_reference_point >= skip_time_dosurf_av ) THEN
1371	time_dosurf_av = time_dosurf_av + dt_3d
1372	ENDIF
1373	ENDIF
1374	!
1375	!-- Increment time-counter for virtual measurements
1376	IF ( virtual_measurement .AND. vm_time_start <= time_since_reference_point ) THEN
1377	time_virtual_measurement = time_virtual_measurement + dt_3d
1378	ENDIF
1379
1380	!
1381	!-- Increment time-counter for wind turbine data output
1382	IF ( wind_turbine ) THEN
1383	time_wtm = time_wtm + dt_3d
1384	ENDIF
1385
1386	!
1387	!-- In case of synthetic turbulence generation and parametrized turbulence
1388	!-- information, update the time counter and if required, adjust the
1389	!-- STG to new atmospheric conditions.
1390	IF ( use_syn_turb_gen ) THEN
1391	IF ( parametrize_inflow_turbulence ) THEN
1392	time_stg_adjust = time_stg_adjust + dt_3d
1393	IF ( time_stg_adjust >= dt_stg_adjust ) THEN
1394	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'start' )
1395	CALL stg_adjust
1396	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'stop' )
1397	ENDIF
1398	ENDIF
1399	time_stg_call = time_stg_call + dt_3d
1400	ENDIF
1401
1402	!
1403	!-- Data exchange between coupled models
1404	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled .AND. .NOT. vnested ) THEN
1405	time_coupling = time_coupling + dt_3d
1406
1407	!
1408	!-- In case of model termination initiated by the local model
1409	!-- (terminate_coupled > 0), the coupler must be skipped because it would
1410	!-- cause an MPI intercomminucation hang.
1411	!-- If necessary, the coupler will be called at the beginning of the
1412	!-- next restart run.
1413	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
1414	CALL surface_coupler
1415	time_coupling = time_coupling - dt_coupling
1416	ENDDO
1417	ENDIF
1418
1419	!
1420	!-- Biometeorology calculation of stationary thermal indices
1421	!-- Todo (kanani): biometeorology needs own time_... treatment.
1422	!-- It might be that time_do2d_xy differs from time_do3d,
1423	!-- and then we might get trouble with the biomet output,
1424	!-- because we can have 2d and/or 3d biomet output!!
1425	IF ( biometeorology &
1426	.AND. ( ( time_do3d >= dt_do3d .AND. time_since_reference_point >= skip_time_do3d ) &
1427	.OR. &
1428	( time_do2d_xy >= dt_do2d_xy .AND. time_since_reference_point >= skip_time_do2d_xy ) &
1429	) ) THEN
1430	!
1431	!-- If required, do thermal comfort calculations
1432	IF ( thermal_comfort ) THEN
1433	CALL bio_calculate_thermal_index_maps ( .FALSE. )
1434	ENDIF
1435	!
1436	!-- If required, do UV exposure calculations
1437	IF ( uv_exposure ) THEN
1438	CALL bio_calculate_uv_exposure
1439	ENDIF
1440	ENDIF
1441
1442	!
1443	!-- Execute alle other module actions routunes
1444	CALL module_interface_actions( 'after_integration' )
1445
1446	!
1447	!-- If Galilei transformation is used, determine the distance that the
1448	!-- model has moved so far
1449	IF ( galilei_transformation ) THEN
1450	advected_distance_x = advected_distance_x + u_gtrans * dt_3d
1451	advected_distance_y = advected_distance_y + v_gtrans * dt_3d
1452	ENDIF
1453
1454	!
1455	!-- Check, if restart is necessary (because cpu-time is expiring or
1456	!-- because it is forced by user) and set stop flag
1457	!-- This call is skipped if the remote model has already initiated a restart.
1458	IF ( .NOT. terminate_run ) CALL check_for_restart
1459
1460	!
1461	!-- Carry out statistical analysis and output at the requested output times.
1462	!-- The MOD function is used for calculating the output time counters (like
1463	!-- time_dopr) in order to regard a possible decrease of the output time
1464	!-- interval in case of restart runs
1465
1466	!
1467	!-- Set a flag indicating that so far no statistics have been created
1468	!-- for this time step
1469	flow_statistics_called = .FALSE.
1470
1471	!
1472	!-- If required, call flow_statistics for averaging in time
1473	IF ( averaging_interval_pr /= 0.0_wp .AND. &
1474	( dt_dopr - time_dopr ) <= averaging_interval_pr .AND. &
1475	time_since_reference_point >= skip_time_dopr ) THEN
1476	time_dopr_av = time_dopr_av + dt_3d
1477	IF ( time_dopr_av >= dt_averaging_input_pr ) THEN
1478	do_sum = .TRUE.
1479	time_dopr_av = MOD( time_dopr_av, MAX( dt_averaging_input_pr, dt_3d ) )
1480	ENDIF
1481	ENDIF
1482	IF ( do_sum ) CALL flow_statistics
1483
1484	!
1485	!-- Sum-up 3d-arrays for later output of time-averaged 2d/3d/masked data
1486	IF ( averaging_interval /= 0.0_wp .AND. &
1487	( dt_data_output_av - time_do_av ) <= averaging_interval .AND. &
1488	time_since_reference_point >= skip_time_data_output_av ) &
1489	THEN
1490	time_do_sla = time_do_sla + dt_3d
1491	IF ( time_do_sla >= dt_averaging_input ) THEN
1492	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1493	CALL doq_calculate
1494
1495	CALL sum_up_3d_data
1496	average_count_3d = average_count_3d + 1
1497	time_do_sla = MOD( time_do_sla, MAX( dt_averaging_input, dt_3d ) )
1498	ENDIF
1499	ENDIF
1500	!
1501	!-- Average surface data
1502	IF ( surface_output ) THEN
1503	IF ( averaging_interval_surf /= 0.0_wp &
1504	.AND. ( dt_dosurf_av - time_dosurf_av ) <= averaging_interval_surf &
1505	.AND. time_since_reference_point >= skip_time_dosurf_av ) THEN
1506	IF ( time_dosurf_av >= dt_averaging_input ) THEN
1507	CALL surface_data_output_averaging
1508	average_count_surf = average_count_surf + 1
1509	ENDIF
1510	ENDIF
1511	ENDIF
1512
1513	!
1514	!-- Calculate spectra for time averaging
1515	IF ( averaging_interval_sp /= 0.0_wp .AND. ( dt_dosp - time_dosp ) <= averaging_interval_sp&
1516	.AND. time_since_reference_point >= skip_time_dosp ) THEN
1517	time_dosp_av = time_dosp_av + dt_3d
1518	IF ( time_dosp_av >= dt_averaging_input_pr ) THEN
1519	CALL calc_spectra
1520	time_dosp_av = MOD( time_dosp_av, MAX( dt_averaging_input_pr, dt_3d ) )
1521	ENDIF
1522	ENDIF
1523
1524	!
1525	!-- Call flight module and output data
1526	IF ( virtual_flight ) THEN
1527	CALL flight_measurement
1528	CALL data_output_flight
1529	ENDIF
1530	!
1531	!-- Take virtual measurements
1532	IF ( virtual_measurement .AND. time_virtual_measurement >= dt_virtual_measurement &
1533	.AND. vm_time_start <= time_since_reference_point ) THEN
1534	CALL vm_sampling
1535	CALL vm_data_output
1536	time_virtual_measurement = MOD( time_virtual_measurement, &
1537	MAX( dt_virtual_measurement, dt_3d ) )
1538	ENDIF
1539
1540	!
1541	!-- Output wind turbine data
1542	IF ( wind_turbine .AND. time_wtm >= dt_data_output_wtm ) THEN
1543	CALL wtm_data_output
1544	time_wtm = MOD( time_wtm, MAX( dt_data_output_wtm, dt_3d ) )
1545	ENDIF
1546
1547	!
1548	!-- Profile output (ASCII) on file
1549	IF ( time_dopr_listing >= dt_dopr_listing ) THEN
1550	CALL print_1d
1551	time_dopr_listing = MOD( time_dopr_listing, MAX( dt_dopr_listing, dt_3d ) )
1552	ENDIF
1553
1554	!
1555	!-- Graphic output for PROFIL
1556	IF ( time_dopr >= dt_dopr .AND. time_since_reference_point >= skip_time_dopr ) THEN
1557	IF ( dopr_n /= 0 ) CALL data_output_profiles
1558	time_dopr = MOD( time_dopr, MAX( dt_dopr, dt_3d ) )
1559	time_dopr_av = 0.0_wp ! due to averaging (see above)
1560	ENDIF
1561
1562	!
1563	!-- Graphic output for time series
1564	IF ( time_dots >= dt_dots ) THEN
1565	CALL data_output_tseries
1566	time_dots = MOD( time_dots, MAX( dt_dots, dt_3d ) )
1567	ENDIF
1568
1569	!
1570	!-- Output of spectra (formatted for use with PROFIL), in case of no
1571	!-- time averaging, spectra has to be calculated before
1572	IF ( time_dosp >= dt_dosp .AND. time_since_reference_point >= skip_time_dosp ) THEN
1573	IF ( average_count_sp == 0 ) CALL calc_spectra
1574	CALL data_output_spectra
1575	time_dosp = MOD( time_dosp, MAX( dt_dosp, dt_3d ) )
1576	ENDIF
1577
1578	!
1579	!-- 2d-data output (cross-sections)
1580	IF ( time_do2d_xy >= dt_do2d_xy .AND. time_since_reference_point >= skip_time_do2d_xy ) THEN
1581	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1582	CALL doq_calculate
1583
1584	CALL data_output_2d( 'xy', 0 )
1585	time_do2d_xy = MOD( time_do2d_xy, MAX( dt_do2d_xy, dt_3d ) )
1586	ENDIF
1587	IF ( time_do2d_xz >= dt_do2d_xz .AND. time_since_reference_point >= skip_time_do2d_xz ) THEN
1588	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1589
1590	CALL doq_calculate
1591	CALL data_output_2d( 'xz', 0 )
1592	time_do2d_xz = MOD( time_do2d_xz, MAX( dt_do2d_xz, dt_3d ) )
1593	ENDIF
1594	IF ( time_do2d_yz >= dt_do2d_yz .AND. time_since_reference_point >= skip_time_do2d_yz ) THEN
1595	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1596	CALL doq_calculate
1597
1598	CALL data_output_2d( 'yz', 0 )
1599	time_do2d_yz = MOD( time_do2d_yz, MAX( dt_do2d_yz, dt_3d ) )
1600	ENDIF
1601
1602	!
1603	!-- 3d-data output (volume data)
1604	IF ( time_do3d >= dt_do3d .AND. time_since_reference_point >= skip_time_do3d ) THEN
1605	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1606	CALL doq_calculate
1607
1608	CALL data_output_3d( 0 )
1609	time_do3d = MOD( time_do3d, MAX( dt_do3d, dt_3d ) )
1610	ENDIF
1611
1612	!
1613	!-- Masked data output
1614	DO mid = 1, masks
1615	IF ( time_domask(mid) >= dt_domask(mid) &
1616	.AND. time_since_reference_point >= skip_time_domask(mid) ) THEN
1617	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1618	CALL doq_calculate
1619
1620	CALL data_output_mask( 0, mid )
1621	time_domask(mid) = MOD( time_domask(mid), MAX( dt_domask(mid), dt_3d ) )
1622	ENDIF
1623	ENDDO
1624
1625	!
1626	!-- Output of time-averaged 2d/3d/masked data
1627	IF ( time_do_av >= dt_data_output_av &
1628	.AND. time_since_reference_point >= skip_time_data_output_av ) THEN
1629	CALL average_3d_data
1630	!
1631	!-- Udate thermal comfort indices based on updated averaged input
1632	IF ( biometeorology .AND. thermal_comfort ) THEN
1633	CALL bio_calculate_thermal_index_maps ( .TRUE. )
1634	ENDIF
1635	CALL data_output_2d( 'xy', 1 )
1636	CALL data_output_2d( 'xz', 1 )
1637	CALL data_output_2d( 'yz', 1 )
1638	CALL data_output_3d( 1 )
1639	DO mid = 1, masks
1640	CALL data_output_mask( 1, mid )
1641	ENDDO
1642	time_do_av = MOD( time_do_av, MAX( dt_data_output_av, dt_3d ) )
1643	ENDIF
1644	!
1645	!-- Output of surface data, instantaneous and averaged data
1646	IF ( surface_output ) THEN
1647	IF ( time_dosurf >= dt_dosurf .AND. time_since_reference_point >= skip_time_dosurf ) THEN
1648	CALL surface_data_output( 0 )
1649	time_dosurf = MOD( time_dosurf, MAX( dt_dosurf, dt_3d ) )
1650	ENDIF
1651	IF ( time_dosurf_av >= dt_dosurf_av .AND. time_since_reference_point >= skip_time_dosurf_av ) THEN
1652	CALL surface_data_output( 1 )
1653	time_dosurf_av = MOD( time_dosurf_av, MAX( dt_dosurf_av, dt_3d ) )
1654	ENDIF
1655	ENDIF
1656
1657	!
1658	!-- Output of particle time series
1659	IF ( particle_advection ) THEN
1660	IF ( time_dopts >= dt_dopts .OR. &
1661	( time_since_reference_point >= particle_advection_start .AND. &
1662	first_call_lpm ) ) THEN
1663	CALL lpm_data_output_ptseries
1664	time_dopts = MOD( time_dopts, MAX( dt_dopts, dt_3d ) )
1665	ENDIF
1666	ENDIF
1667
1668	!
1669	!-- If required, set the heat flux for the next time step to a random value
1670	IF ( constant_heatflux .AND. random_heatflux ) THEN
1671	IF ( surf_def_h(0)%ns >= 1 ) THEN
1672	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1673	CALL disturb_heatflux( surf_def_h(0) )
1674	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1675	ENDIF
1676	IF ( surf_lsm_h%ns >= 1 ) THEN
1677	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1678	CALL disturb_heatflux( surf_lsm_h )
1679	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1680	ENDIF
1681	IF ( surf_usm_h%ns >= 1 ) THEN
1682	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1683	CALL disturb_heatflux( surf_usm_h )
1684	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1685	ENDIF
1686	ENDIF
1687
1688	!
1689	!-- Execute alle other module actions routunes
1690	CALL module_interface_actions( 'after_timestep' )
1691
1692	!
1693	!-- Determine size of next time step. Save timestep dt_3d because it is
1694	!-- newly calculated in routine timestep, but required further below for
1695	!-- steering the run control output interval
1696	dt_3d_old = dt_3d
1697	CALL timestep
1698
1699	#if defined( __parallel )
1700	!
1701	!-- Synchronize the timestep in case of nested run.
1702	IF ( nested_run ) THEN
1703	!
1704	!-- Synchronize by unifying the time step.
1705	!-- Global minimum of all time-steps is used for all.
1706	CALL pmci_synchronize
1707	ENDIF
1708	#endif
1709
1710	!
1711	!-- Computation and output of run control parameters.
1712	!-- This is also done whenever perturbations have been imposed
1713	IF ( time_run_control >= dt_run_control .OR. &
1714	timestep_scheme(1:5) /= 'runge' .OR. disturbance_created ) &
1715	THEN
1716	CALL run_control
1717	IF ( time_run_control >= dt_run_control ) THEN
1718	time_run_control = MOD( time_run_control, MAX( dt_run_control, dt_3d_old ) )
1719	ENDIF
1720	ENDIF
1721
1722	!
1723	!-- Output elapsed simulated time in form of a progress bar on stdout
1724	IF ( myid == 0 ) CALL output_progress_bar
1725
1726	CALL cpu_log( log_point_s(10), 'timesteps', 'stop' )
1727
1728
1729	ENDDO ! time loop
1730
1731	#if defined( _OPENACC )
1732	CALL exit_surface_arrays
1733	#endif
1734	!$ACC END DATA
1735	!$ACC END DATA
1736	!$ACC END DATA
1737	!$ACC END DATA
1738	!$ACC END DATA
1739	!$ACC END DATA
1740	!$ACC END DATA
1741	!$ACC END DATA
1742
1743	#if defined( __parallel )
1744	!
1745	!-- Vertical nesting: Deallocate variables initialized for vertical nesting
1746	IF ( vnest_init ) CALL vnest_deallocate
1747	#endif
1748
1749	IF ( myid == 0 ) CALL finish_progress_bar
1750
1751	CALL location_message( 'atmosphere (and/or ocean) time-stepping', 'finished' )
1752
1753	END SUBROUTINE time_integration

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