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source: palm/trunk/SOURCE/time_integration.f90 @ 4656

Last change on this file since 4656 was 4581, checked in by suehring, 4 years ago
mesoscale nesting: omit explicit pressure forcing via geostrophic wind components; chemistry: enable profile output of vertical fluxes; urban-surface: bugfix in initialization in case of cyclic_fill
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File size: 71.7 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 1997-2020 Leibniz Universitaet Hannover
18	!------------------------------------------------------------------------------!
19	!
20	! Current revisions:
21	! ------------------
22	!
23	!
24	! Former revisions:
25	! -----------------
26	! $Id: time_integration.f90 4581 2020-06-29 08:49:58Z pavelkrc $
27	! Omit explicit pressure forcing via geostrophic wind components in case of
28	! mesoscale nesting.
29	!
30	! 4578 2020-06-25 15:43:32Z gronemeier
31	! bugfix: removed unused variables
32	!
33	! 4573 2020-06-24 13:08:47Z oliver.maas
34	! calculate pt(0) incrementally by using dt_3d instead of calculating it absolutely
35	! by using time_since_reference_point, because time_since_reference_point is set
36	! to zero for initializing_actions = 'cyclic_fill'
37	!
38	! 4565 2020-06-15 08:30:38Z oliver.maas
39	! added new surface temperature forcing method for bc_pt_b = 'dirichlet':
40	! surface temperature pt(0) can be linearly increased by pt_surface_heating_rate (in K/h)
41	!
42	! 4564 2020-06-12 14:03:36Z raasch
43	! Vertical nesting method of Huq et al. (2019) removed
44	!
45	! 4521 2020-05-06 11:39:49Z schwenkel
46	! Rename variable
47	!
48	! 4511 2020-04-30 12:20:40Z raasch
49	! chemistry decycling replaced by explicit setting of lateral boundary conditions
50	!
51	! 4508 2020-04-24 13:32:20Z raasch
52	! salsa decycling replaced by explicit setting of lateral boundary conditions
53	!
54	! 4502 2020-04-17 16:14:16Z schwenkel
55	! Implementation of ice microphysics
56	!
57	! 4472 2020-03-24 12:21:00Z Giersch
58	! OPENACC COPYIN directive for ddx and ddy added
59	!
60	! 4466 2020-03-20 16:14:41Z suehring
61	! Add advection fluxes to ACC copyin
62	!
63	! 4457 2020-03-11 14:20:43Z raasch
64	! use statement for exchange horiz added
65	!
66	! 4444 2020-03-05 15:59:50Z raasch
67	! bugfix: cpp-directives for serial mode added
68	!
69	! 4420 2020-02-24 14:13:56Z maronga
70	! Added output control for wind turbine model
71	!
72	! 4403 2020-02-12 13:08:46Z banzhafs
73	! Allowing both existing and on-demand emission read modes
74	!
75	! 4360 2020-01-07 11:25:50Z suehring
76	! Bugfix, hour_call_emis uninitialized at first call of time_integration
77	!
78	! 4346 2019-12-18 11:55:56Z motisi
79	! Introduction of wall_flags_total_0, which currently sets bits based on static
80	! topography information used in wall_flags_static_0
81	!
82	! 4329 2019-12-10 15:46:36Z motisi
83	! Renamed wall_flags_0 to wall_flags_static_0
84	!
85	! 4281 2019-10-29 15:15:39Z schwenkel
86	! Moved boundary conditions to module interface
87	!
88	! 4276 2019-10-28 16:03:29Z schwenkel
89	! Further modularization of lpm code components
90	!
91	! 4275 2019-10-28 15:34:55Z schwenkel
92	! Move call oft lpm to the end of intermediate timestep loop
93	!
94	! 4268 2019-10-17 11:29:38Z schwenkel
95	! Removing module specific boundary conditions an put them into their modules
96	!
97	! 4227 2019-09-10 18:04:34Z gronemeier
98	! implement new palm_date_time_mod
99	!
100	! 4226 2019-09-10 17:03:24Z suehring
101	! Changes in interface for the offline nesting
102	!
103	! 4182 2019-08-22 15:20:23Z scharf
104	! Corrected "Former revisions" section
105	!
106	! 4170 2019-08-19 17:12:31Z gronemeier
107	! copy diss, diss_p, tdiss_m to GPU
108	!
109	! 4144 2019-08-06 09:11:47Z raasch
110	! relational operators .EQ., .NE., etc. replaced by ==, /=, etc.
111	!
112	! 4126 2019-07-30 11:09:11Z gronemeier
113	! renamed routine to calculate uv exposure
114	!
115	! 4111 2019-07-22 18:16:57Z suehring
116	! advc_flags_1 / advc_flags_2 renamed to advc_flags_m / advc_flags_s
117	!
118	! 4069 2019-07-01 14:05:51Z Giersch
119	! Masked output running index mid has been introduced as a local variable to
120	! avoid runtime error (Loop variable has been modified) in time_integration
121	!
122	! 4064 2019-07-01 05:33:33Z gronemeier
123	! Moved call to radiation module out of intermediate time loop
124	!
125	! 4048 2019-06-21 21:00:21Z knoop
126	! Moved production_e_init call into turbulence_closure_mod
127	!
128	! 4047 2019-06-21 18:58:09Z knoop
129	! Added remainings of swap_timelevel upon its dissolution
130	!
131	! 4043 2019-06-18 16:59:00Z schwenkel
132	! Further LPM modularization
133	!
134	! 4039 2019-06-18 10:32:41Z suehring
135	! Rename subroutines in module for diagnostic quantities
136	!
137	! 4029 2019-06-14 14:04:35Z raasch
138	! exchange of ghost points and boundary conditions separated for chemical species and SALSA module,
139	! bugfix: decycling of chemistry species after nesting data transfer
140	!
141	! 4022 2019-06-12 11:52:39Z suehring
142	! Call synthetic turbulence generator at last RK3 substep right after boundary
143	! conditions are updated in offline nesting in order to assure that
144	! perturbations are always imposed
145	!
146	! 4017 2019-06-06 12:16:46Z schwenkel
147	! Mass (volume) flux correction included to ensure global mass conservation for child domains.
148	!
149	! 3994 2019-05-22 18:08:09Z suehring
150	! output of turbulence intensity added
151	!
152	! 3988 2019-05-22 11:32:37Z kanani
153	! Implement steerable output interval for virtual measurements
154	!
155	! 3968 2019-05-13 11:04:01Z suehring
156	! replace nspec_out with n_matched_vars
157	!
158	! 3929 2019-04-24 12:52:08Z banzhafs
159	! Reverse changes back from revision 3878: use chem_boundary_conds instead of
160	! chem_boundary_conds_decycle
161	!
162	!
163	! 3885 2019-04-11 11:29:34Z kanani
164	! Changes related to global restructuring of location messages and introduction
165	! of additional debug messages
166	!
167	! 3879 2019-04-08 20:25:23Z knoop
168	! Moved wtm_forces to module_interface_actions
169	!
170	! 3872 2019-04-08 15:03:06Z knoop
171	! Modifications made for salsa:
172	! - Call salsa_emission_update at each time step but do the checks within
173	! salsa_emission_update (i.e. skip_time_do_salsa >= time_since_reference_point
174	! and next_aero_emission_update <= time_since_reference_point ).
175	! - Renamed nbins --> nbins_aerosol, ncc_tot --> ncomponents_mass and
176	! ngast --> ngases_salsa and loop indices b, c and sg to ib, ic and ig
177	! - Apply nesting for salsa variables
178	! - Removed cpu_log calls speciffic for salsa.
179	!
180	! 3833 2019-03-28 15:04:04Z forkel
181	! added USE chem_gasphase_mod, replaced nspec by nspec since fixed compounds are not integrated
182	!
183	! 3820 2019-03-27 11:53:41Z forkel
184	! renamed do_emiss to emissions_anthropogenic (ecc)
185	!
186	!
187	! 3774 2019-03-04 10:52:49Z moh.hefny
188	! rephrase if statement to avoid unallocated array in case of
189	! nesting_offline is false (crashing during debug mode)
190	!
191	! 3761 2019-02-25 15:31:42Z raasch $
192	! module section re-formatted and openacc required variables moved to separate section,
193	! re-formatting to 100 char line width
194	!
195	! 3745 2019-02-15 18:57:56Z suehring
196	! Call indoor model after first timestep
197	!
198	! 3744 2019-02-15 18:38:58Z suehring
199	! - Moved call of bio_calculate_thermal_index_maps from biometeorology module to
200	! time_integration to make sure averaged input is updated before calculating.
201	!
202	! 3739 2019-02-13 08:05:17Z dom_dwd_user
203	! Removed everything related to "time_bio_results" as this is never used.
204	!
205	! 3724 2019-02-06 16:28:23Z kanani
206	! Correct double-used log_point_s unit
207	!
208	! 3719 2019-02-06 13:10:18Z kanani
209	! - removed wind_turbine cpu measurement, since same time is measured inside
210	! wtm_forces subroutine as special measures
211	! - moved the numerous vnest cpulog to special measures
212	! - extended radiation cpulog over entire radiation part,
213	! moved radiation_interactions cpulog to special measures
214	! - moved some cpu_log calls to this routine for better overview
215	!
216	! 3705 2019-01-29 19:56:39Z suehring
217	! Data output for virtual measurements added
218	!
219	! 3704 2019-01-29 19:51:41Z suehring
220	! Rename subroutines for surface-data output
221	!
222	! 3647 2019-01-02 14:10:44Z kanani
223	! Bugfix: add time_since_reference_point to IF clause for data_output calls
224	! (otherwise skip_time_* values don't come into affect with dt_do* = 0.0).
225	! Clean up indoor_model and biometeorology model call.
226	!
227	! Revision 1.1 1997/08/11 06:19:04 raasch
228	! Initial revision
229	!
230	!
231	! Description:
232	! ------------
233	!> Integration in time of the model equations, statistical analysis and graphic
234	!> output
235	!------------------------------------------------------------------------------!
236	SUBROUTINE time_integration
237
238
239	USE advec_ws, &
240	ONLY: ws_statistics
241
242	USE arrays_3d, &
243	ONLY: diss, diss_p, dzu, e_p, nc_p, ni_p, nr_p, prho, pt, pt_p, pt_init, q, qc_p, qr_p, &
244	q_init, q_p, qi_p, ref_state, rho_ocean, sa_p, s_p, tend, u, u_p, v, vpt, v_p, w_p
245
246	#if defined( __parallel ) && ! defined( _OPENACC )
247	USE arrays_3d, &
248	ONLY: e, nc, ni, nr, qc, qi, qr, s, w
249	#endif
250
251	USE biometeorology_mod, &
252	ONLY: bio_calculate_thermal_index_maps, thermal_comfort, bio_calculate_uv_exposure, &
253	uv_exposure
254
255	USE bulk_cloud_model_mod, &
256	ONLY: bulk_cloud_model, calc_liquid_water_content, collision_turbulence, &
257	microphysics_ice_phase, microphysics_morrison, microphysics_seifert
258
259	USE calc_mean_profile_mod, &
260	ONLY: calc_mean_profile
261
262	USE chem_emissions_mod, &
263	ONLY: chem_emissions_setup, chem_emissions_update_on_demand
264
265	USE chem_gasphase_mod, &
266	ONLY: nvar
267
268	USE chem_modules, &
269	ONLY: bc_cs_t_val, chem_species, communicator_chem, emissions_anthropogenic, &
270	emiss_read_legacy_mode, n_matched_vars
271
272	USE control_parameters, &
273	ONLY: advected_distance_x, advected_distance_y, air_chemistry, average_count_3d, &
274	averaging_interval, averaging_interval_pr, bc_lr_cyc, bc_ns_cyc, bc_pt_t_val, &
275	bc_q_t_val, biometeorology, call_psolver_at_all_substeps, child_domain, &
276	constant_flux_layer, constant_heatflux, create_disturbances, &
277	dopr_n, constant_diffusion, coupling_mode, coupling_start_time, &
278	current_timestep_number, disturbance_created, disturbance_energy_limit, dist_range, &
279	do_sum, dt_3d, dt_averaging_input, dt_averaging_input_pr, dt_coupling, &
280	dt_data_output_av, dt_disturb, dt_do2d_xy, dt_do2d_xz, dt_do2d_yz, dt_do3d, &
281	dt_domask,dt_dopts, dt_dopr, dt_dopr_listing, dt_dots, dt_run_control, &
282	end_time, first_call_lpm, first_call_mas, galilei_transformation, humidity, &
283	indoor_model, intermediate_timestep_count, intermediate_timestep_count_max, &
284	land_surface, large_scale_forcing, loop_optimization, lsf_surf, lsf_vert, masks, &
285	multi_agent_system_end, multi_agent_system_start, nesting_offline, neutral, &
286	nr_timesteps_this_run, nudging, ocean_mode, passive_scalar, pt_reference, &
287	pt_slope_offset, pt_surface_heating_rate, &
288	random_heatflux, rans_tke_e, run_coupled, salsa, &
289	simulated_time, simulated_time_chr, skip_time_do2d_xy, skip_time_do2d_xz, &
290	skip_time_do2d_yz, skip_time_do3d, skip_time_domask, skip_time_dopr, &
291	skip_time_data_output_av, sloping_surface, stop_dt, surface_output, &
292	terminate_coupled, terminate_run, timestep_scheme, time_coupling, time_do2d_xy, &
293	time_do2d_xz, time_do2d_yz, time_do3d, time_domask, time_dopr, time_dopr_av, &
294	time_dopr_listing, time_dopts, time_dosp, time_dosp_av, time_dots, time_do_av, &
295	time_do_sla, time_disturb, time_run_control, time_since_reference_point, &
296	timestep_count, turbulent_inflow, turbulent_outflow, urban_surface, &
297	use_initial_profile_as_reference, use_single_reference_value, u_gtrans, v_gtrans, &
298	virtual_flight, virtual_measurement, ws_scheme_mom, ws_scheme_sca
299
300	#if defined( __parallel )
301	USE control_parameters, &
302	ONLY: rans_mode
303	#endif
304
305	USE cpulog, &
306	ONLY: cpu_log, log_point, log_point_s
307
308	USE diagnostic_output_quantities_mod, &
309	ONLY: doq_calculate, &
310	timestep_number_at_prev_calc
311
312	USE exchange_horiz_mod, &
313	ONLY: exchange_horiz
314
315	USE flight_mod, &
316	ONLY: flight_measurement
317
318	USE grid_variables, &
319	ONLY: ddx, ddy
320
321	USE indices, &
322	ONLY: nbgp, nx, nxl, nxlg, nxr, nxrg, nzb, nzt
323
324	USE indoor_model_mod, &
325	ONLY: dt_indoor, im_main_heatcool, time_indoor
326
327	USE interfaces
328
329	USE kinds
330
331	USE land_surface_model_mod, &
332	ONLY: lsm_boundary_condition, lsm_energy_balance, lsm_soil_model, skip_time_do_lsm
333
334	USE lagrangian_particle_model_mod, &
335	ONLY: lpm_data_output_ptseries
336
337	USE lsf_nudging_mod, &
338	ONLY: calc_tnudge, ls_forcing_surf, ls_forcing_vert, nudge_ref
339
340	USE module_interface, &
341	ONLY: module_interface_actions, module_interface_swap_timelevel, &
342	module_interface_boundary_conditions
343
344	USE multi_agent_system_mod, &
345	ONLY: agents_active, multi_agent_system
346
347	USE nesting_offl_mod, &
348	ONLY: nesting_offl_bc, &
349	nesting_offl_input, &
350	nesting_offl_interpolation_factor, &
351	nesting_offl_mass_conservation
352
353	USE netcdf_data_input_mod, &
354	ONLY: chem_emis, chem_emis_att
355
356	USE ocean_mod, &
357	ONLY: prho_reference
358
359	USE palm_date_time_mod, &
360	ONLY: get_date_time
361
362	USE particle_attributes, &
363	ONLY: particle_advection, particle_advection_start, use_sgs_for_particles, wang_kernel
364
365	USE pegrid
366
367	#if defined( __parallel )
368	USE pmc_interface, &
369	ONLY: nested_run, nesting_mode, pmci_boundary_conds, pmci_datatrans, pmci_synchronize, &
370	pmci_ensure_nest_mass_conservation, pmci_ensure_nest_mass_conservation_vertical, &
371	pmci_set_swaplevel
372	#endif
373
374	USE progress_bar, &
375	ONLY: finish_progress_bar, output_progress_bar
376
377	USE prognostic_equations_mod, &
378	ONLY: prognostic_equations_cache, prognostic_equations_vector
379
380	USE radiation_model_mod, &
381	ONLY: dt_radiation, force_radiation_call, radiation, radiation_control, &
382	radiation_interaction, radiation_interactions, skip_time_do_radiation, time_radiation
383
384	USE salsa_mod, &
385	ONLY: aerosol_number, aerosol_mass, bc_am_t_val, bc_an_t_val, bc_gt_t_val, &
386	communicator_salsa, nbins_aerosol, ncomponents_mass, ngases_salsa, &
387	salsa_boundary_conditions, salsa_emission_update, salsa_gas, salsa_gases_from_chem, &
388	skip_time_do_salsa
389
390	USE spectra_mod, &
391	ONLY: average_count_sp, averaging_interval_sp, calc_spectra, dt_dosp, skip_time_dosp
392
393	USE statistics, &
394	ONLY: flow_statistics_called, hom, pr_palm, sums_ls_l
395
396
397	USE surface_layer_fluxes_mod, &
398	ONLY: surface_layer_fluxes
399
400	USE surface_data_output_mod, &
401	ONLY: average_count_surf, averaging_interval_surf, dt_dosurf, dt_dosurf_av, &
402	surface_data_output, surface_data_output_averaging, skip_time_dosurf, &
403	skip_time_dosurf_av, time_dosurf, time_dosurf_av
404
405	USE surface_mod, &
406	ONLY: surf_def_h, surf_lsm_h, surf_usm_h
407
408	USE synthetic_turbulence_generator_mod, &
409	ONLY: dt_stg_call, dt_stg_adjust, parametrize_inflow_turbulence, stg_adjust, stg_main, &
410	time_stg_adjust, time_stg_call, use_syn_turb_gen
411
412	USE turbulence_closure_mod, &
413	ONLY: tcm_diffusivities
414
415	USE urban_surface_mod, &
416	ONLY: usm_boundary_condition, usm_material_heat_model, usm_material_model, &
417	usm_surface_energy_balance, usm_green_heat_model
418
419	USE virtual_measurement_mod, &
420	ONLY: dt_virtual_measurement, &
421	time_virtual_measurement, &
422	vm_data_output, &
423	vm_sampling, &
424	vm_time_start
425
426
427	USE wind_turbine_model_mod, &
428	ONLY: dt_data_output_wtm, time_wtm, wind_turbine, wtm_data_output
429
430	#if defined( _OPENACC )
431	USE arrays_3d, &
432	ONLY: d, dd2zu, ddzu, ddzw, &
433	diss_l_u, &
434	diss_l_v, &
435	diss_l_w, &
436	diss_s_u, &
437	diss_s_v, &
438	diss_s_w, &
439	drho_air, drho_air_zw, dzw, e, &
440	flux_l_u, &
441	flux_l_v, &
442	flux_l_w, &
443	flux_s_u, &
444	flux_s_v, &
445	flux_s_w, &
446	heatflux_output_conversion, &
447	kh, km, momentumflux_output_conversion, nc, ni, nr, p, ptdf_x, ptdf_y, qc, qi, qr, rdf, &
448	rdf_sc, rho_air, rho_air_zw, s, tdiss_m, te_m, tpt_m, tu_m, tv_m, tw_m, ug, u_init, &
449	u_stokes_zu, vg, v_init, v_stokes_zu, w, zu
450
451	USE control_parameters, &
452	ONLY: tsc
453
454	USE indices, &
455	ONLY: advc_flags_m, advc_flags_s, nyn, nyng, nys, nysg, nz, nzb_max, wall_flags_total_0
456
457	USE statistics, &
458	ONLY: rmask, statistic_regions, sums_l, sums_l_l, sums_us2_ws_l, &
459	sums_wsus_ws_l, sums_vs2_ws_l, sums_wsvs_ws_l, sums_ws2_ws_l, sums_wspts_ws_l, &
460	sums_wsqs_ws_l, sums_wssas_ws_l, sums_wsqcs_ws_l, sums_wsqrs_ws_l, sums_wsncs_ws_l, &
461	sums_wsnrs_ws_l, sums_wsss_ws_l, weight_substep, sums_salsa_ws_l, sums_wsqis_ws_l, &
462	sums_wsnis_ws_l
463
464	USE surface_mod, &
465	ONLY: bc_h, enter_surface_arrays, exit_surface_arrays
466	#endif
467
468
469	IMPLICIT NONE
470
471	CHARACTER (LEN=9) :: time_to_string !<
472
473	INTEGER(iwp) :: hour !< hour of current time
474	INTEGER(iwp) :: hour_call_emis = -1 !< last hour where emission was called
475	INTEGER(iwp) :: ib !< index for aerosol size bins
476	INTEGER(iwp) :: ic !< index for aerosol mass bins
477	INTEGER(iwp) :: icc !< additional index for aerosol mass bins
478	INTEGER(iwp) :: ig !< index for salsa gases
479	INTEGER(iwp) :: mid !< masked output running index
480	INTEGER(iwp) :: n !< loop counter for chemistry species
481
482	REAL(wp) :: dt_3d_old !< temporary storage of timestep to be used for
483	!< steering of run control output interval
484	REAL(wp) :: time_since_reference_point_save !< original value of
485	!< time_since_reference_point
486
487
488	!
489	!-- Copy data from arrays_3d
490	!$ACC DATA &
491	!$ACC COPY(d(nzb+1:nzt,nys:nyn,nxl:nxr)) &
492	!$ACC COPY(diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
493	!$ACC COPY(e(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
494	!$ACC COPY(u(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
495	!$ACC COPY(v(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
496	!$ACC COPY(w(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
497	!$ACC COPY(kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
498	!$ACC COPY(km(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
499	!$ACC COPY(p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
500	!$ACC COPY(pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
501
502	!$ACC DATA &
503	!$ACC COPYIN(diss_l_u(0:nz+1,nys:nyn,0), flux_l_u(0:nz+1,nys:nyn,0)) &
504	!$ACC COPYIN(diss_l_v(0:nz+1,nys:nyn,0), flux_l_v(0:nz+1,nys:nyn,0)) &
505	!$ACC COPYIN(diss_l_w(0:nz+1,nys:nyn,0), flux_l_w(0:nz+1,nys:nyn,0)) &
506	!$ACC COPYIN(diss_s_u(0:nz+1,0), flux_s_u(0:nz+1,0)) &
507	!$ACC COPYIN(diss_s_v(0:nz+1,0), flux_s_v(0:nz+1,0)) &
508	!$ACC COPYIN(diss_s_w(0:nz+1,0), flux_s_w(0:nz+1,0)) &
509	!$ACC COPY(diss_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
510	!$ACC COPY(e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
511	!$ACC COPY(u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
512	!$ACC COPY(v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
513	!$ACC COPY(w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
514	!$ACC COPY(pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
515	!$ACC COPY(tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
516	!$ACC COPY(tdiss_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
517	!$ACC COPY(te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
518	!$ACC COPY(tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
519	!$ACC COPY(tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
520	!$ACC COPY(tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
521	!$ACC COPY(tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
522
523	!$ACC DATA &
524	!$ACC COPYIN(rho_air(nzb:nzt+1), drho_air(nzb:nzt+1)) &
525	!$ACC COPYIN(rho_air_zw(nzb:nzt+1), drho_air_zw(nzb:nzt+1)) &
526	!$ACC COPYIN(zu(nzb:nzt+1)) &
527	!$ACC COPYIN(dzu(1:nzt+1), dzw(1:nzt+1)) &
528	!$ACC COPYIN(ddzu(1:nzt+1), dd2zu(1:nzt)) &
529	!$ACC COPYIN(ddzw(1:nzt+1)) &
530	!$ACC COPYIN(heatflux_output_conversion(nzb:nzt+1)) &
531	!$ACC COPYIN(momentumflux_output_conversion(nzb:nzt+1)) &
532	!$ACC COPYIN(rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt)) &
533	!$ACC COPYIN(ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng)) &
534	!$ACC COPYIN(ref_state(0:nz+1)) &
535	!$ACC COPYIN(u_init(0:nz+1), v_init(0:nz+1)) &
536	!$ACC COPYIN(u_stokes_zu(nzb:nzt+1), v_stokes_zu(nzb:nzt+1)) &
537	!$ACC COPYIN(pt_init(0:nz+1)) &
538	!$ACC COPYIN(ug(0:nz+1), vg(0:nz+1))
539
540	!
541	!-- Copy data from control_parameters
542	!$ACC DATA &
543	!$ACC COPYIN(tsc(1:5))
544
545	!
546	!-- Copy data from grid_variables
547	!$ACC DATA &
548	!$ACC COPYIN(ddx, ddy)
549
550	!
551	!-- Copy data from indices
552	!$ACC DATA &
553	!$ACC COPYIN(advc_flags_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
554	!$ACC COPYIN(advc_flags_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
555	!$ACC COPYIN(wall_flags_total_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
556
557	!
558	!-- Copy data from surface_mod
559	!$ACC DATA &
560	!$ACC COPYIN(bc_h(0:1)) &
561	!$ACC COPYIN(bc_h(0)%i(1:bc_h(0)%ns)) &
562	!$ACC COPYIN(bc_h(0)%j(1:bc_h(0)%ns)) &
563	!$ACC COPYIN(bc_h(0)%k(1:bc_h(0)%ns)) &
564	!$ACC COPYIN(bc_h(1)%i(1:bc_h(1)%ns)) &
565	!$ACC COPYIN(bc_h(1)%j(1:bc_h(1)%ns)) &
566	!$ACC COPYIN(bc_h(1)%k(1:bc_h(1)%ns))
567
568	!
569	!-- Copy data from statistics
570	!$ACC DATA &
571	!$ACC COPYIN(hom(0:nz+1,1:2,1:4,0)) &
572	!$ACC COPYIN(rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions)) &
573	!$ACC COPYIN(weight_substep(1:intermediate_timestep_count_max)) &
574	!$ACC COPY(sums_l(nzb:nzt+1,1:pr_palm,0)) &
575	!$ACC COPY(sums_l_l(nzb:nzt+1,0:statistic_regions,0)) &
576	!$ACC COPY(sums_us2_ws_l(nzb:nzt+1,0)) &
577	!$ACC COPY(sums_wsus_ws_l(nzb:nzt+1,0)) &
578	!$ACC COPY(sums_vs2_ws_l(nzb:nzt+1,0)) &
579	!$ACC COPY(sums_wsvs_ws_l(nzb:nzt+1,0)) &
580	!$ACC COPY(sums_ws2_ws_l(nzb:nzt+1,0)) &
581	!$ACC COPY(sums_wspts_ws_l(nzb:nzt+1,0)) &
582	!$ACC COPY(sums_wssas_ws_l(nzb:nzt+1,0)) &
583	!$ACC COPY(sums_wsqs_ws_l(nzb:nzt+1,0)) &
584	!$ACC COPY(sums_wsqcs_ws_l(nzb:nzt+1,0)) &
585	!$ACC COPY(sums_wsqis_ws_l(nzb:nzt+1,0)) &
586	!$ACC COPY(sums_wsqrs_ws_l(nzb:nzt+1,0)) &
587	!$ACC COPY(sums_wsncs_ws_l(nzb:nzt+1,0)) &
588	!$ACC COPY(sums_wsnis_ws_l(nzb:nzt+1,0)) &
589	!$ACC COPY(sums_wsnrs_ws_l(nzb:nzt+1,0)) &
590	!$ACC COPY(sums_wsss_ws_l(nzb:nzt+1,0)) &
591	!$ACC COPY(sums_salsa_ws_l(nzb:nzt+1,0))
592
593	!
594	!-- Next statement is to avoid compiler warnings about unused variables. Please
595	!-- remove in case that you are using them. ddx and ddy need to be defined in
596	!-- time_integration because of ACC COPYIN directive.
597	ddx = ddx
598	ddy = ddy
599
600	#if defined( _OPENACC )
601	CALL enter_surface_arrays
602	#endif
603
604	!
605	!-- At beginning determine the first time step
606	CALL timestep
607
608	#if defined( __parallel )
609	!
610	!-- Synchronize the timestep in case of nested run.
611	IF ( nested_run ) THEN
612	!
613	!-- Synchronization by unifying the time step.
614	!-- Global minimum of all time-steps is used for all.
615	CALL pmci_synchronize
616	ENDIF
617	#endif
618
619	!
620	!-- Determine and print out the run control quantities before the first time
621	!-- step of this run. For the initial run, some statistics (e.g. divergence)
622	!-- need to be determined first --> CALL flow_statistics at the beginning of
623	!-- run_control
624	CALL run_control
625	!
626	!-- Data exchange between coupled models in case that a call has been omitted
627	!-- at the end of the previous run of a job chain.
628	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled ) THEN
629	!
630	!-- In case of model termination initiated by the local model the coupler
631	!-- must not be called because this would again cause an MPI hang.
632	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
633	CALL surface_coupler
634	time_coupling = time_coupling - dt_coupling
635	ENDDO
636	IF (time_coupling == 0.0_wp .AND. time_since_reference_point < dt_coupling ) THEN
637	time_coupling = time_since_reference_point
638	ENDIF
639	ENDIF
640
641	CALL location_message( 'atmosphere (and/or ocean) time-stepping', 'start' )
642
643	!
644	!-- Start of the time loop
645	DO WHILE ( simulated_time < end_time .AND. .NOT. stop_dt .AND. .NOT. terminate_run )
646
647	CALL cpu_log( log_point_s(10), 'timesteps', 'start' )
648
649	!
650	!-- Determine ug, vg and w_subs in dependence on data from external file
651	!-- LSF_DATA
652	IF ( large_scale_forcing .AND. lsf_vert ) THEN
653	CALL ls_forcing_vert ( simulated_time )
654	sums_ls_l = 0.0_wp
655	ENDIF
656
657	!
658	!-- Set pt_init and q_init to the current profiles taken from
659	!-- NUDGING_DATA
660	IF ( nudging ) THEN
661	CALL nudge_ref ( simulated_time )
662	!
663	!-- Store temperature gradient at the top boundary for possible Neumann
664	!-- boundary condition
665	bc_pt_t_val = ( pt_init(nzt+1) - pt_init(nzt) ) / dzu(nzt+1)
666	bc_q_t_val = ( q_init(nzt+1) - q_init(nzt) ) / dzu(nzt+1)
667	IF ( air_chemistry ) THEN
668	DO n = 1, nvar
669	bc_cs_t_val = ( chem_species(n)%conc_pr_init(nzt+1) &
670	- chem_species(n)%conc_pr_init(nzt) ) &
671	/ dzu(nzt+1)
672	ENDDO
673	ENDIF
674	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
675	DO ib = 1, nbins_aerosol
676	bc_an_t_val = ( aerosol_number(ib)%init(nzt+1) - aerosol_number(ib)%init(nzt) ) / &
677	dzu(nzt+1)
678	DO ic = 1, ncomponents_mass
679	icc = ( ic - 1 ) * nbins_aerosol + ib
680	bc_am_t_val = ( aerosol_mass(icc)%init(nzt+1) - aerosol_mass(icc)%init(nzt) ) /&
681	dzu(nzt+1)
682	ENDDO
683	ENDDO
684	IF ( .NOT. salsa_gases_from_chem ) THEN
685	DO ig = 1, ngases_salsa
686	bc_gt_t_val = ( salsa_gas(ig)%init(nzt+1) - salsa_gas(ig)%init(nzt) ) / &
687	dzu(nzt+1)
688	ENDDO
689	ENDIF
690	ENDIF
691	ENDIF
692	!
693	!-- Input of boundary data.
694	IF ( nesting_offline ) CALL nesting_offl_input
695	!
696	!-- Execute all other module actions routines
697	CALL module_interface_actions( 'before_timestep' )
698
699	!
700	!-- Start of intermediate step loop
701	intermediate_timestep_count = 0
702	DO WHILE ( intermediate_timestep_count < intermediate_timestep_count_max )
703
704	intermediate_timestep_count = intermediate_timestep_count + 1
705
706	!
707	!-- Set the steering factors for the prognostic equations which depend
708	!-- on the timestep scheme
709	CALL timestep_scheme_steering
710
711	!
712	!-- Calculate those variables needed in the tendency terms which need
713	!-- global communication
714	IF ( .NOT. use_single_reference_value .AND. .NOT. use_initial_profile_as_reference ) &
715	THEN
716	!
717	!-- Horizontally averaged profiles to be used as reference state in
718	!-- buoyancy terms (WARNING: only the respective last call of
719	!-- calc_mean_profile defines the reference state!)
720	IF ( .NOT. neutral ) THEN
721	CALL calc_mean_profile( pt, 4 )
722	ref_state(:) = hom(:,1,4,0) ! this is used in the buoyancy term
723	ENDIF
724	IF ( ocean_mode ) THEN
725	CALL calc_mean_profile( rho_ocean, 64 )
726	ref_state(:) = hom(:,1,64,0)
727	ENDIF
728	IF ( humidity ) THEN
729	CALL calc_mean_profile( vpt, 44 )
730	ref_state(:) = hom(:,1,44,0)
731	ENDIF
732	!
733	!-- Assure that ref_state does not become zero at any level
734	!-- ( might be the case if a vertical level is completely occupied
735	!-- with topography ).
736	ref_state = MERGE( MAXVAL(ref_state), ref_state, ref_state == 0.0_wp )
737	ENDIF
738
739	IF ( ( ws_scheme_mom .OR. ws_scheme_sca ) .AND. intermediate_timestep_count == 1 ) &
740	THEN
741	CALL ws_statistics
742	ENDIF
743	!
744	!-- In case of nudging calculate current nudging time scale and horizontal
745	!-- means of u, v, pt and q
746	IF ( nudging ) THEN
747	CALL calc_tnudge( simulated_time )
748	CALL calc_mean_profile( u, 1 )
749	CALL calc_mean_profile( v, 2 )
750	CALL calc_mean_profile( pt, 4 )
751	CALL calc_mean_profile( q, 41 )
752	ENDIF
753	!
754	!-- Execute all other module actions routunes
755	CALL module_interface_actions( 'before_prognostic_equations' )
756	!
757	!-- Solve the prognostic equations. A fast cache optimized version with
758	!-- only one single loop is used in case of Piascek-Williams advection
759	!-- scheme. NEC vector machines use a different version, because
760	!-- in the other versions a good vectorization is prohibited due to
761	!-- inlining problems.
762	IF ( loop_optimization == 'cache' ) THEN
763	CALL prognostic_equations_cache
764	ELSEIF ( loop_optimization == 'vector' ) THEN
765	CALL prognostic_equations_vector
766	ENDIF
767
768	!
769	!-- Movement of agents in multi agent system
770	IF ( agents_active .AND. time_since_reference_point >= multi_agent_system_start .AND. &
771	time_since_reference_point <= multi_agent_system_end .AND. &
772	intermediate_timestep_count == 1 ) &
773	THEN
774	CALL multi_agent_system
775	first_call_mas = .FALSE.
776	ENDIF
777
778	!
779	!-- Exchange of ghost points (lateral boundary conditions)
780	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'start' )
781
782	CALL exchange_horiz( u_p, nbgp )
783	CALL exchange_horiz( v_p, nbgp )
784	CALL exchange_horiz( w_p, nbgp )
785	CALL exchange_horiz( pt_p, nbgp )
786	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
787	IF ( rans_tke_e .OR. wang_kernel .OR. collision_turbulence &
788	.OR. use_sgs_for_particles ) THEN
789	IF ( rans_tke_e ) THEN
790	CALL exchange_horiz( diss_p, nbgp )
791	ELSE
792	CALL exchange_horiz( diss, nbgp )
793	ENDIF
794	ENDIF
795	IF ( ocean_mode ) THEN
796	CALL exchange_horiz( sa_p, nbgp )
797	CALL exchange_horiz( rho_ocean, nbgp )
798	CALL exchange_horiz( prho, nbgp )
799	ENDIF
800	IF ( humidity ) THEN
801	CALL exchange_horiz( q_p, nbgp )
802	IF ( bulk_cloud_model .AND. microphysics_morrison ) THEN
803	CALL exchange_horiz( qc_p, nbgp )
804	CALL exchange_horiz( nc_p, nbgp )
805	ENDIF
806	IF ( bulk_cloud_model .AND. microphysics_seifert ) THEN
807	CALL exchange_horiz( qr_p, nbgp )
808	CALL exchange_horiz( nr_p, nbgp )
809	ENDIF
810	IF ( bulk_cloud_model .AND. microphysics_ice_phase ) THEN
811	CALL exchange_horiz( qi_p, nbgp )
812	CALL exchange_horiz( ni_p, nbgp )
813	ENDIF
814	ENDIF
815	IF ( passive_scalar ) CALL exchange_horiz( s_p, nbgp )
816	IF ( air_chemistry ) THEN
817	DO n = 1, nvar
818	CALL exchange_horiz( chem_species(n)%conc_p, nbgp, &
819	alternative_communicator = communicator_chem )
820	ENDDO
821	ENDIF
822
823	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
824	DO ib = 1, nbins_aerosol
825	CALL exchange_horiz( aerosol_number(ib)%conc_p, nbgp, &
826	alternative_communicator = communicator_salsa )
827	DO ic = 1, ncomponents_mass
828	icc = ( ic - 1 ) * nbins_aerosol + ib
829	CALL exchange_horiz( aerosol_mass(icc)%conc_p, nbgp, &
830	alternative_communicator = communicator_salsa )
831	ENDDO
832	ENDDO
833	IF ( .NOT. salsa_gases_from_chem ) THEN
834	DO ig = 1, ngases_salsa
835	CALL exchange_horiz( salsa_gas(ig)%conc_p, nbgp, &
836	alternative_communicator = communicator_salsa )
837	ENDDO
838	ENDIF
839	ENDIF
840
841	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'stop' )
842
843	!
844	!-- Boundary conditions for the prognostic quantities (except of the
845	!-- velocities at the outflow in case of a non-cyclic lateral wall) and
846	!-- boundary conditions for module-specific variables
847	CALL module_interface_boundary_conditions
848
849	!
850	!-- Incrementing timestep counter
851	timestep_count = timestep_count + 1
852
853	CALL cpu_log( log_point(28), 'swap_timelevel', 'start' )
854	!
855	!-- Set the swap level for all modules
856	CALL module_interface_swap_timelevel( MOD( timestep_count, 2) )
857
858	#if defined( __parallel )
859	!
860	!-- Set the swap level for steering the pmc data transfer
861	IF ( nested_run ) CALL pmci_set_swaplevel( MOD( timestep_count, 2) + 1 ) !> @todo: why the +1 ?
862	#endif
863
864	CALL cpu_log( log_point(28), 'swap_timelevel', 'stop' )
865
866	#if defined( __parallel )
867	IF ( nested_run ) THEN
868
869	CALL cpu_log( log_point(60), 'nesting', 'start' )
870	!
871	!-- Domain nesting. The data transfer subroutines pmci_parent_datatrans
872	!-- and pmci_child_datatrans are called inside the wrapper
873	!-- subroutine pmci_datatrans according to the control parameters
874	!-- nesting_mode and nesting_datatransfer_mode.
875	!-- TO_DO: why is nesting_mode given as a parameter here?
876	CALL pmci_datatrans( nesting_mode )
877
878	IF ( TRIM( nesting_mode ) == 'two-way' .OR. nesting_mode == 'vertical' ) THEN
879
880	CALL cpu_log( log_point_s(92), 'exchange-horiz-nest', 'start' )
881	!
882	!-- Exchange_horiz is needed for all parent-domains after the
883	!-- anterpolation
884	CALL exchange_horiz( u, nbgp )
885	CALL exchange_horiz( v, nbgp )
886	CALL exchange_horiz( w, nbgp )
887	IF ( .NOT. neutral ) CALL exchange_horiz( pt, nbgp )
888
889	IF ( humidity ) THEN
890
891	CALL exchange_horiz( q, nbgp )
892
893	IF ( bulk_cloud_model .AND. microphysics_morrison ) THEN
894	CALL exchange_horiz( qc, nbgp )
895	CALL exchange_horiz( nc, nbgp )
896	ENDIF
897	IF ( bulk_cloud_model .AND. microphysics_seifert ) THEN
898	CALL exchange_horiz( qr, nbgp )
899	CALL exchange_horiz( nr, nbgp )
900	ENDIF
901	IF ( bulk_cloud_model .AND. microphysics_ice_phase ) THEN
902	CALL exchange_horiz( qi, nbgp )
903	CALL exchange_horiz( ni, nbgp )
904	ENDIF
905
906	ENDIF
907
908	IF ( passive_scalar ) CALL exchange_horiz( s, nbgp )
909
910	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e, nbgp )
911
912	IF ( .NOT. constant_diffusion .AND. rans_mode .AND. rans_tke_e ) THEN
913	CALL exchange_horiz( diss, nbgp )
914	ENDIF
915
916	IF ( air_chemistry ) THEN
917	DO n = 1, nvar
918	CALL exchange_horiz( chem_species(n)%conc, nbgp, &
919	alternative_communicator = communicator_chem )
920	ENDDO
921	ENDIF
922
923	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
924	DO ib = 1, nbins_aerosol
925	CALL exchange_horiz( aerosol_number(ib)%conc, nbgp, &
926	alternative_communicator = communicator_salsa )
927	DO ic = 1, ncomponents_mass
928	icc = ( ic - 1 ) * nbins_aerosol + ib
929	CALL exchange_horiz( aerosol_mass(icc)%conc, nbgp, &
930	alternative_communicator = communicator_salsa )
931	ENDDO
932	ENDDO
933	IF ( .NOT. salsa_gases_from_chem ) THEN
934	DO ig = 1, ngases_salsa
935	CALL exchange_horiz( salsa_gas(ig)%conc, nbgp, &
936	alternative_communicator = communicator_salsa )
937	ENDDO
938	ENDIF
939	ENDIF
940	CALL cpu_log( log_point_s(92), 'exchange-horiz-nest', 'stop' )
941
942	ENDIF
943
944	!
945	!-- Set boundary conditions again after interpolation and anterpolation.
946	CALL pmci_boundary_conds
947
948	CALL cpu_log( log_point(60), 'nesting', 'stop' )
949
950	ENDIF
951	#endif
952
953	!
954	!-- Temperature offset must be imposed at cyclic boundaries in x-direction
955	!-- when a sloping surface is used
956	IF ( sloping_surface ) THEN
957	IF ( nxl == 0 ) pt(:,:,nxlg:nxl-1) = pt(:,:,nxlg:nxl-1) - pt_slope_offset
958	IF ( nxr == nx ) pt(:,:,nxr+1:nxrg) = pt(:,:,nxr+1:nxrg) + pt_slope_offset
959	ENDIF
960
961	!
962	!-- Increase temperature pt(0) according to pt_surface_heating_rate (convert from K/h to K/s)
963	IF ( pt_surface_heating_rate /= 0.0_wp .AND. intermediate_timestep_count == 1 ) THEN
964	pt(0,:,:) = pt(0,:,:) + dt_3d * pt_surface_heating_rate / 3600.0_wp
965	ENDIF
966
967	!
968	!-- Impose a turbulent inflow using the recycling method
969	IF ( turbulent_inflow ) CALL inflow_turbulence
970
971	!
972	!-- Set values at outflow boundary using the special outflow condition
973	IF ( turbulent_outflow ) CALL outflow_turbulence
974
975	!
976	!-- Impose a random perturbation on the horizontal velocity field
977	IF ( create_disturbances .AND. ( call_psolver_at_all_substeps .AND. &
978	intermediate_timestep_count == intermediate_timestep_count_max ) &
979	.OR. ( .NOT. call_psolver_at_all_substeps .AND. intermediate_timestep_count == 1 ) ) &
980	THEN
981	time_disturb = time_disturb + dt_3d
982	IF ( time_disturb >= dt_disturb ) THEN
983	IF ( disturbance_energy_limit /= 0.0_wp .AND. &
984	hom(nzb+5,1,pr_palm,0) < disturbance_energy_limit ) THEN
985	CALL disturb_field( 'u', tend, u )
986	CALL disturb_field( 'v', tend, v )
987	ELSEIF ( ( .NOT. bc_lr_cyc .OR. .NOT. bc_ns_cyc ) &
988	.AND. .NOT. child_domain .AND. .NOT. nesting_offline ) &
989	THEN
990	!
991	!-- Runs with a non-cyclic lateral wall need perturbations
992	!-- near the inflow throughout the whole simulation
993	dist_range = 1
994	CALL disturb_field( 'u', tend, u )
995	CALL disturb_field( 'v', tend, v )
996	dist_range = 0
997	ENDIF
998	time_disturb = time_disturb - dt_disturb
999	ENDIF
1000	ENDIF
1001
1002	!
1003	!-- Map forcing data derived from larger scale model onto domain
1004	!-- boundaries. Further, update geostrophic wind components.
1005	IF ( nesting_offline .AND. intermediate_timestep_count == &
1006	intermediate_timestep_count_max ) THEN
1007	!-- Determine interpolation factor before boundary conditions and geostrophic wind
1008	!-- is updated.
1009	CALL nesting_offl_interpolation_factor
1010	CALL nesting_offl_bc
1011	! CALL nesting_offl_geostrophic_wind
1012	ENDIF
1013	!
1014	!-- Impose a turbulent inflow using synthetic generated turbulence.
1015	IF ( use_syn_turb_gen .AND. &
1016	intermediate_timestep_count == intermediate_timestep_count_max ) THEN
1017	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'start' )
1018	CALL stg_main
1019	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'stop' )
1020	ENDIF
1021	!
1022	!-- Ensure mass conservation. This need to be done after imposing
1023	!-- synthetic turbulence and top boundary condition for pressure is set to
1024	!-- Neumann conditions.
1025	!-- Is this also required in case of Dirichlet?
1026	IF ( nesting_offline ) CALL nesting_offl_mass_conservation
1027	!
1028	!-- Reduce the velocity divergence via the equation for perturbation
1029	!-- pressure.
1030	IF ( intermediate_timestep_count == 1 .OR. call_psolver_at_all_substeps ) THEN
1031
1032	#if defined( __parallel )
1033	!
1034	!-- Mass (volume) flux correction to ensure global mass conservation for child domains.
1035	IF ( child_domain ) THEN
1036	IF ( nesting_mode == 'vertical' ) THEN
1037	CALL pmci_ensure_nest_mass_conservation_vertical
1038	ELSE
1039	CALL pmci_ensure_nest_mass_conservation
1040	ENDIF
1041	ENDIF
1042	#endif
1043	CALL pres
1044
1045	ENDIF
1046	!
1047	!-- Particle transport/physics with the Lagrangian particle model
1048	!-- (only once during intermediate steps, because it uses an Euler-step)
1049	!-- ### particle model should be moved before prognostic_equations, in order
1050	!-- to regard droplet interactions directly
1051
1052	CALL module_interface_actions( 'after_pressure_solver' )
1053	!
1054	!-- Interaction of droplets with temperature and mixing ratio.
1055	!-- Droplet condensation and evaporation is calculated within
1056	!-- advec_particles.
1057	!
1058	!-- If required, compute liquid water content
1059	IF ( bulk_cloud_model ) THEN
1060	CALL calc_liquid_water_content
1061	ENDIF
1062	!
1063	!-- If required, compute virtual potential temperature
1064	IF ( humidity ) THEN
1065	CALL compute_vpt
1066	ENDIF
1067
1068	!
1069	!-- Compute the diffusion quantities
1070	IF ( .NOT. constant_diffusion ) THEN
1071
1072	!
1073	!-- Determine surface fluxes shf and qsws and surface values
1074	!-- pt_surface and q_surface in dependence on data from external
1075	!-- file LSF_DATA respectively
1076	IF ( ( large_scale_forcing .AND. lsf_surf ) .AND. &
1077	intermediate_timestep_count == intermediate_timestep_count_max ) &
1078	THEN
1079	CALL ls_forcing_surf( simulated_time )
1080	ENDIF
1081
1082	!
1083	!-- First the vertical (and horizontal) fluxes in the surface
1084	!-- (constant flux) layer are computed
1085	IF ( constant_flux_layer ) THEN
1086	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'start' )
1087	CALL surface_layer_fluxes
1088	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'stop' )
1089	ENDIF
1090	!
1091	!-- If required, solve the energy balance for the surface and run soil
1092	!-- model. Call for horizontal as well as vertical surfaces
1093	IF ( land_surface .AND. time_since_reference_point >= skip_time_do_lsm) THEN
1094
1095	CALL cpu_log( log_point(54), 'land_surface', 'start' )
1096	!
1097	!-- Call for horizontal upward-facing surfaces
1098	CALL lsm_energy_balance( .TRUE., -1 )
1099	CALL lsm_soil_model( .TRUE., -1, .TRUE. )
1100	!
1101	!-- Call for northward-facing surfaces
1102	CALL lsm_energy_balance( .FALSE., 0 )
1103	CALL lsm_soil_model( .FALSE., 0, .TRUE. )
1104	!
1105	!-- Call for southward-facing surfaces
1106	CALL lsm_energy_balance( .FALSE., 1 )
1107	CALL lsm_soil_model( .FALSE., 1, .TRUE. )
1108	!
1109	!-- Call for eastward-facing surfaces
1110	CALL lsm_energy_balance( .FALSE., 2 )
1111	CALL lsm_soil_model( .FALSE., 2, .TRUE. )
1112	!
1113	!-- Call for westward-facing surfaces
1114	CALL lsm_energy_balance( .FALSE., 3 )
1115	CALL lsm_soil_model( .FALSE., 3, .TRUE. )
1116
1117	!
1118	!-- At the end, set boundary conditons for potential temperature
1119	!-- and humidity after running the land-surface model. This
1120	!-- might be important for the nesting, where arrays are transfered.
1121	CALL lsm_boundary_condition
1122
1123
1124	CALL cpu_log( log_point(54), 'land_surface', 'stop' )
1125	ENDIF
1126	!
1127	!-- If required, solve the energy balance for urban surfaces and run
1128	!-- the material heat model
1129	IF (urban_surface) THEN
1130	CALL cpu_log( log_point(74), 'urban_surface', 'start' )
1131
1132	CALL usm_surface_energy_balance( .FALSE. )
1133	IF ( usm_material_model ) THEN
1134	CALL usm_green_heat_model
1135	CALL usm_material_heat_model ( .FALSE. )
1136	ENDIF
1137
1138	!
1139	!-- At the end, set boundary conditons for potential temperature
1140	!-- and humidity after running the urban-surface model. This
1141	!-- might be important for the nesting, where arrays are transfered.
1142	CALL usm_boundary_condition
1143
1144	CALL cpu_log( log_point(74), 'urban_surface', 'stop' )
1145	ENDIF
1146	!
1147	!-- Compute the diffusion coefficients
1148	CALL cpu_log( log_point(17), 'diffusivities', 'start' )
1149	IF ( .NOT. humidity ) THEN
1150	IF ( ocean_mode ) THEN
1151	CALL tcm_diffusivities( prho, prho_reference )
1152	ELSE
1153	CALL tcm_diffusivities( pt, pt_reference )
1154	ENDIF
1155	ELSE
1156	CALL tcm_diffusivities( vpt, pt_reference )
1157	ENDIF
1158	CALL cpu_log( log_point(17), 'diffusivities', 'stop' )
1159
1160	ENDIF
1161
1162	ENDDO ! Intermediate step loop
1163
1164	!
1165	!-- Will be used at some point by flow_statistics.
1166	!$ACC UPDATE &
1167	!$ACC HOST(sums_l_l(nzb:nzt+1,0:statistic_regions,0)) &
1168	!$ACC HOST(sums_us2_ws_l(nzb:nzt+1,0)) &
1169	!$ACC HOST(sums_wsus_ws_l(nzb:nzt+1,0)) &
1170	!$ACC HOST(sums_vs2_ws_l(nzb:nzt+1,0)) &
1171	!$ACC HOST(sums_wsvs_ws_l(nzb:nzt+1,0)) &
1172	!$ACC HOST(sums_ws2_ws_l(nzb:nzt+1,0)) &
1173	!$ACC HOST(sums_wspts_ws_l(nzb:nzt+1,0)) &
1174	!$ACC HOST(sums_wssas_ws_l(nzb:nzt+1,0)) &
1175	!$ACC HOST(sums_wsqs_ws_l(nzb:nzt+1,0)) &
1176	!$ACC HOST(sums_wsqcs_ws_l(nzb:nzt+1,0)) &
1177	!$ACC HOST(sums_wsqis_ws_l(nzb:nzt+1,0)) &
1178	!$ACC HOST(sums_wsqrs_ws_l(nzb:nzt+1,0)) &
1179	!$ACC HOST(sums_wsncs_ws_l(nzb:nzt+1,0)) &
1180	!$ACC HOST(sums_wsnis_ws_l(nzb:nzt+1,0)) &
1181	!$ACC HOST(sums_wsnrs_ws_l(nzb:nzt+1,0)) &
1182	!$ACC HOST(sums_wsss_ws_l(nzb:nzt+1,0)) &
1183	!$ACC HOST(sums_salsa_ws_l(nzb:nzt+1,0))
1184
1185	!
1186	!-- If required, calculate radiative fluxes and heating rates
1187	IF ( radiation .AND. time_since_reference_point > skip_time_do_radiation ) THEN
1188
1189	time_radiation = time_radiation + dt_3d
1190
1191	IF ( time_radiation >= dt_radiation .OR. force_radiation_call ) THEN
1192
1193	CALL cpu_log( log_point(50), 'radiation', 'start' )
1194
1195	IF ( .NOT. force_radiation_call ) THEN
1196	time_radiation = time_radiation - dt_radiation
1197	ENDIF
1198
1199	!
1200	!-- Adjust the current time to the time step of the radiation model.
1201	!-- Needed since radiation is pre-calculated and stored only on apparent
1202	!-- solar positions
1203	time_since_reference_point_save = time_since_reference_point
1204	time_since_reference_point = REAL( FLOOR( time_since_reference_point / &
1205	dt_radiation ), wp ) * dt_radiation
1206
1207	CALL radiation_control
1208
1209	IF ( ( urban_surface .OR. land_surface ) .AND. radiation_interactions ) THEN
1210	CALL cpu_log( log_point_s(46), 'radiation_interaction', 'start' )
1211	CALL radiation_interaction
1212	CALL cpu_log( log_point_s(46), 'radiation_interaction', 'stop' )
1213	ENDIF
1214
1215	!
1216	!-- Return the current time to its original value
1217	time_since_reference_point = time_since_reference_point_save
1218
1219	CALL cpu_log( log_point(50), 'radiation', 'stop' )
1220
1221	ENDIF
1222	ENDIF
1223
1224
1225	!
1226	!-- 20200203 (ECC)
1227	!-- allows for emission update mode in legacy mode as well as on-demand mode
1228	!-- note that under on-demand mode emission update is no longer restricted to
1229	!-- an hourly frequency, but whenever the simulation time corresponds to an
1230	!-- inrement in emission timestamp value
1231
1232	!
1233	!-- If required, consider chemical emissions
1234
1235	IF ( air_chemistry .AND. emissions_anthropogenic ) THEN
1236
1237	IF ( emiss_read_legacy_mode ) THEN
1238	!
1239	!-- get hourly index and updates emission data when the hour is passed
1240
1241	CALL get_date_time( time_since_reference_point, hour=hour )
1242
1243	IF ( hour_call_emis /= hour ) THEN
1244
1245	CALL chem_emissions_setup( chem_emis_att, chem_emis, n_matched_vars )
1246	hour_call_emis = hour
1247
1248	ENDIF
1249
1250	ELSE
1251
1252	CALL chem_emissions_update_on_demand
1253
1254	ENDIF
1255
1256	ENDIF
1257
1258
1259	!
1260	!-- If required, consider aerosol emissions for the salsa model
1261	IF ( salsa ) THEN
1262	!
1263	!-- Call emission routine to update emissions if needed
1264	CALL salsa_emission_update
1265
1266	ENDIF
1267	!
1268	!-- If required, calculate indoor temperature, waste heat, heat flux
1269	!-- through wall, etc.
1270	!-- dt_indoor steers the frequency of the indoor model calculations.
1271	!-- Note, at first timestep indoor model is called, in order to provide
1272	!-- a waste heat flux.
1273	IF ( indoor_model ) THEN
1274
1275	time_indoor = time_indoor + dt_3d
1276
1277	IF ( time_indoor >= dt_indoor .OR. current_timestep_number == 0 ) THEN
1278
1279	time_indoor = time_indoor - dt_indoor
1280
1281	CALL cpu_log( log_point(76), 'indoor_model', 'start' )
1282	CALL im_main_heatcool
1283	CALL cpu_log( log_point(76), 'indoor_model', 'stop' )
1284
1285	ENDIF
1286	ENDIF
1287	!
1288	!-- Increase simulation time and output times
1289	nr_timesteps_this_run = nr_timesteps_this_run + 1
1290	current_timestep_number = current_timestep_number + 1
1291	simulated_time = simulated_time + dt_3d
1292	time_since_reference_point = simulated_time - coupling_start_time
1293	simulated_time_chr = time_to_string( time_since_reference_point )
1294
1295
1296	IF ( time_since_reference_point >= skip_time_data_output_av ) THEN
1297	time_do_av = time_do_av + dt_3d
1298	ENDIF
1299	IF ( time_since_reference_point >= skip_time_do2d_xy ) THEN
1300	time_do2d_xy = time_do2d_xy + dt_3d
1301	ENDIF
1302	IF ( time_since_reference_point >= skip_time_do2d_xz ) THEN
1303	time_do2d_xz = time_do2d_xz + dt_3d
1304	ENDIF
1305	IF ( time_since_reference_point >= skip_time_do2d_yz ) THEN
1306	time_do2d_yz = time_do2d_yz + dt_3d
1307	ENDIF
1308	IF ( time_since_reference_point >= skip_time_do3d ) THEN
1309	time_do3d = time_do3d + dt_3d
1310	ENDIF
1311	DO mid = 1, masks
1312	IF ( time_since_reference_point >= skip_time_domask(mid) ) THEN
1313	time_domask(mid)= time_domask(mid) + dt_3d
1314	ENDIF
1315	ENDDO
1316	IF ( time_since_reference_point >= skip_time_dosp ) THEN
1317	time_dosp = time_dosp + dt_3d
1318	ENDIF
1319	time_dots = time_dots + dt_3d
1320	IF ( .NOT. first_call_lpm ) THEN
1321	time_dopts = time_dopts + dt_3d
1322	ENDIF
1323	IF ( time_since_reference_point >= skip_time_dopr ) THEN
1324	time_dopr = time_dopr + dt_3d
1325	ENDIF
1326	time_dopr_listing = time_dopr_listing + dt_3d
1327	time_run_control = time_run_control + dt_3d
1328	!
1329	!-- Increment time-counter for surface output
1330	IF ( surface_output ) THEN
1331	IF ( time_since_reference_point >= skip_time_dosurf ) THEN
1332	time_dosurf = time_dosurf + dt_3d
1333	ENDIF
1334	IF ( time_since_reference_point >= skip_time_dosurf_av ) THEN
1335	time_dosurf_av = time_dosurf_av + dt_3d
1336	ENDIF
1337	ENDIF
1338	!
1339	!-- Increment time-counter for virtual measurements
1340	IF ( virtual_measurement .AND. vm_time_start <= time_since_reference_point ) THEN
1341	time_virtual_measurement = time_virtual_measurement + dt_3d
1342	ENDIF
1343
1344	!
1345	!-- Increment time-counter for wind turbine data output
1346	IF ( wind_turbine ) THEN
1347	time_wtm = time_wtm + dt_3d
1348	ENDIF
1349
1350	!
1351	!-- In case of synthetic turbulence generation and parametrized turbulence
1352	!-- information, update the time counter and if required, adjust the
1353	!-- STG to new atmospheric conditions.
1354	IF ( use_syn_turb_gen ) THEN
1355	IF ( parametrize_inflow_turbulence ) THEN
1356	time_stg_adjust = time_stg_adjust + dt_3d
1357	IF ( time_stg_adjust >= dt_stg_adjust ) THEN
1358	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'start' )
1359	CALL stg_adjust
1360	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'stop' )
1361	ENDIF
1362	ENDIF
1363	time_stg_call = time_stg_call + dt_3d
1364	ENDIF
1365
1366	!
1367	!-- Data exchange between coupled models
1368	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled ) THEN
1369	time_coupling = time_coupling + dt_3d
1370
1371	!
1372	!-- In case of model termination initiated by the local model
1373	!-- (terminate_coupled > 0), the coupler must be skipped because it would
1374	!-- cause an MPI intercomminucation hang.
1375	!-- If necessary, the coupler will be called at the beginning of the
1376	!-- next restart run.
1377	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
1378	CALL surface_coupler
1379	time_coupling = time_coupling - dt_coupling
1380	ENDDO
1381	ENDIF
1382
1383	!
1384	!-- Biometeorology calculation of stationary thermal indices
1385	!-- Todo (kanani): biometeorology needs own time_... treatment.
1386	!-- It might be that time_do2d_xy differs from time_do3d,
1387	!-- and then we might get trouble with the biomet output,
1388	!-- because we can have 2d and/or 3d biomet output!!
1389	IF ( biometeorology &
1390	.AND. ( ( time_do3d >= dt_do3d .AND. time_since_reference_point >= skip_time_do3d ) &
1391	.OR. &
1392	( time_do2d_xy >= dt_do2d_xy .AND. time_since_reference_point >= skip_time_do2d_xy ) &
1393	) ) THEN
1394	!
1395	!-- If required, do thermal comfort calculations
1396	IF ( thermal_comfort ) THEN
1397	CALL bio_calculate_thermal_index_maps ( .FALSE. )
1398	ENDIF
1399	!
1400	!-- If required, do UV exposure calculations
1401	IF ( uv_exposure ) THEN
1402	CALL bio_calculate_uv_exposure
1403	ENDIF
1404	ENDIF
1405
1406	!
1407	!-- Execute alle other module actions routunes
1408	CALL module_interface_actions( 'after_integration' )
1409
1410	!
1411	!-- If Galilei transformation is used, determine the distance that the
1412	!-- model has moved so far
1413	IF ( galilei_transformation ) THEN
1414	advected_distance_x = advected_distance_x + u_gtrans * dt_3d
1415	advected_distance_y = advected_distance_y + v_gtrans * dt_3d
1416	ENDIF
1417
1418	!
1419	!-- Check, if restart is necessary (because cpu-time is expiring or
1420	!-- because it is forced by user) and set stop flag
1421	!-- This call is skipped if the remote model has already initiated a restart.
1422	IF ( .NOT. terminate_run ) CALL check_for_restart
1423
1424	!
1425	!-- Carry out statistical analysis and output at the requested output times.
1426	!-- The MOD function is used for calculating the output time counters (like
1427	!-- time_dopr) in order to regard a possible decrease of the output time
1428	!-- interval in case of restart runs
1429
1430	!
1431	!-- Set a flag indicating that so far no statistics have been created
1432	!-- for this time step
1433	flow_statistics_called = .FALSE.
1434
1435	!
1436	!-- If required, call flow_statistics for averaging in time
1437	IF ( averaging_interval_pr /= 0.0_wp .AND. &
1438	( dt_dopr - time_dopr ) <= averaging_interval_pr .AND. &
1439	time_since_reference_point >= skip_time_dopr ) THEN
1440	time_dopr_av = time_dopr_av + dt_3d
1441	IF ( time_dopr_av >= dt_averaging_input_pr ) THEN
1442	do_sum = .TRUE.
1443	time_dopr_av = MOD( time_dopr_av, MAX( dt_averaging_input_pr, dt_3d ) )
1444	ENDIF
1445	ENDIF
1446	IF ( do_sum ) CALL flow_statistics
1447
1448	!
1449	!-- Sum-up 3d-arrays for later output of time-averaged 2d/3d/masked data
1450	IF ( averaging_interval /= 0.0_wp .AND. &
1451	( dt_data_output_av - time_do_av ) <= averaging_interval .AND. &
1452	time_since_reference_point >= skip_time_data_output_av ) &
1453	THEN
1454	time_do_sla = time_do_sla + dt_3d
1455	IF ( time_do_sla >= dt_averaging_input ) THEN
1456	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1457	CALL doq_calculate
1458
1459	CALL sum_up_3d_data
1460	average_count_3d = average_count_3d + 1
1461	time_do_sla = MOD( time_do_sla, MAX( dt_averaging_input, dt_3d ) )
1462	ENDIF
1463	ENDIF
1464	!
1465	!-- Average surface data
1466	IF ( surface_output ) THEN
1467	IF ( averaging_interval_surf /= 0.0_wp &
1468	.AND. ( dt_dosurf_av - time_dosurf_av ) <= averaging_interval_surf &
1469	.AND. time_since_reference_point >= skip_time_dosurf_av ) THEN
1470	IF ( time_dosurf_av >= dt_averaging_input ) THEN
1471	CALL surface_data_output_averaging
1472	average_count_surf = average_count_surf + 1
1473	ENDIF
1474	ENDIF
1475	ENDIF
1476
1477	!
1478	!-- Calculate spectra for time averaging
1479	IF ( averaging_interval_sp /= 0.0_wp .AND. ( dt_dosp - time_dosp ) <= averaging_interval_sp&
1480	.AND. time_since_reference_point >= skip_time_dosp ) THEN
1481	time_dosp_av = time_dosp_av + dt_3d
1482	IF ( time_dosp_av >= dt_averaging_input_pr ) THEN
1483	CALL calc_spectra
1484	time_dosp_av = MOD( time_dosp_av, MAX( dt_averaging_input_pr, dt_3d ) )
1485	ENDIF
1486	ENDIF
1487
1488	!
1489	!-- Call flight module and output data
1490	IF ( virtual_flight ) THEN
1491	CALL flight_measurement
1492	CALL data_output_flight
1493	ENDIF
1494	!
1495	!-- Take virtual measurements
1496	IF ( virtual_measurement .AND. time_virtual_measurement >= dt_virtual_measurement &
1497	.AND. vm_time_start <= time_since_reference_point ) THEN
1498	CALL vm_sampling
1499	CALL vm_data_output
1500	time_virtual_measurement = MOD( time_virtual_measurement, &
1501	MAX( dt_virtual_measurement, dt_3d ) )
1502	ENDIF
1503
1504	!
1505	!-- Output wind turbine data
1506	IF ( wind_turbine .AND. time_wtm >= dt_data_output_wtm ) THEN
1507	CALL wtm_data_output
1508	time_wtm = MOD( time_wtm, MAX( dt_data_output_wtm, dt_3d ) )
1509	ENDIF
1510
1511	!
1512	!-- Profile output (ASCII) on file
1513	IF ( time_dopr_listing >= dt_dopr_listing ) THEN
1514	CALL print_1d
1515	time_dopr_listing = MOD( time_dopr_listing, MAX( dt_dopr_listing, dt_3d ) )
1516	ENDIF
1517
1518	!
1519	!-- Graphic output for PROFIL
1520	IF ( time_dopr >= dt_dopr .AND. time_since_reference_point >= skip_time_dopr ) THEN
1521	IF ( dopr_n /= 0 ) CALL data_output_profiles
1522	time_dopr = MOD( time_dopr, MAX( dt_dopr, dt_3d ) )
1523	time_dopr_av = 0.0_wp ! due to averaging (see above)
1524	ENDIF
1525
1526	!
1527	!-- Graphic output for time series
1528	IF ( time_dots >= dt_dots ) THEN
1529	CALL data_output_tseries
1530	time_dots = MOD( time_dots, MAX( dt_dots, dt_3d ) )
1531	ENDIF
1532
1533	!
1534	!-- Output of spectra (formatted for use with PROFIL), in case of no
1535	!-- time averaging, spectra has to be calculated before
1536	IF ( time_dosp >= dt_dosp .AND. time_since_reference_point >= skip_time_dosp ) THEN
1537	IF ( average_count_sp == 0 ) CALL calc_spectra
1538	CALL data_output_spectra
1539	time_dosp = MOD( time_dosp, MAX( dt_dosp, dt_3d ) )
1540	ENDIF
1541
1542	!
1543	!-- 2d-data output (cross-sections)
1544	IF ( time_do2d_xy >= dt_do2d_xy .AND. time_since_reference_point >= skip_time_do2d_xy ) THEN
1545	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1546	CALL doq_calculate
1547
1548	CALL data_output_2d( 'xy', 0 )
1549	time_do2d_xy = MOD( time_do2d_xy, MAX( dt_do2d_xy, dt_3d ) )
1550	ENDIF
1551	IF ( time_do2d_xz >= dt_do2d_xz .AND. time_since_reference_point >= skip_time_do2d_xz ) THEN
1552	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1553
1554	CALL doq_calculate
1555	CALL data_output_2d( 'xz', 0 )
1556	time_do2d_xz = MOD( time_do2d_xz, MAX( dt_do2d_xz, dt_3d ) )
1557	ENDIF
1558	IF ( time_do2d_yz >= dt_do2d_yz .AND. time_since_reference_point >= skip_time_do2d_yz ) THEN
1559	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1560	CALL doq_calculate
1561
1562	CALL data_output_2d( 'yz', 0 )
1563	time_do2d_yz = MOD( time_do2d_yz, MAX( dt_do2d_yz, dt_3d ) )
1564	ENDIF
1565
1566	!
1567	!-- 3d-data output (volume data)
1568	IF ( time_do3d >= dt_do3d .AND. time_since_reference_point >= skip_time_do3d ) THEN
1569	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1570	CALL doq_calculate
1571
1572	CALL data_output_3d( 0 )
1573	time_do3d = MOD( time_do3d, MAX( dt_do3d, dt_3d ) )
1574	ENDIF
1575
1576	!
1577	!-- Masked data output
1578	DO mid = 1, masks
1579	IF ( time_domask(mid) >= dt_domask(mid) &
1580	.AND. time_since_reference_point >= skip_time_domask(mid) ) THEN
1581	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1582	CALL doq_calculate
1583
1584	CALL data_output_mask( 0, mid )
1585	time_domask(mid) = MOD( time_domask(mid), MAX( dt_domask(mid), dt_3d ) )
1586	ENDIF
1587	ENDDO
1588
1589	!
1590	!-- Output of time-averaged 2d/3d/masked data
1591	IF ( time_do_av >= dt_data_output_av &
1592	.AND. time_since_reference_point >= skip_time_data_output_av ) THEN
1593	CALL average_3d_data
1594	!
1595	!-- Udate thermal comfort indices based on updated averaged input
1596	IF ( biometeorology .AND. thermal_comfort ) THEN
1597	CALL bio_calculate_thermal_index_maps ( .TRUE. )
1598	ENDIF
1599	CALL data_output_2d( 'xy', 1 )
1600	CALL data_output_2d( 'xz', 1 )
1601	CALL data_output_2d( 'yz', 1 )
1602	CALL data_output_3d( 1 )
1603	DO mid = 1, masks
1604	CALL data_output_mask( 1, mid )
1605	ENDDO
1606	time_do_av = MOD( time_do_av, MAX( dt_data_output_av, dt_3d ) )
1607	ENDIF
1608	!
1609	!-- Output of surface data, instantaneous and averaged data
1610	IF ( surface_output ) THEN
1611	IF ( time_dosurf >= dt_dosurf .AND. time_since_reference_point >= skip_time_dosurf ) THEN
1612	CALL surface_data_output( 0 )
1613	time_dosurf = MOD( time_dosurf, MAX( dt_dosurf, dt_3d ) )
1614	ENDIF
1615	IF ( time_dosurf_av >= dt_dosurf_av .AND. time_since_reference_point >= skip_time_dosurf_av ) THEN
1616	CALL surface_data_output( 1 )
1617	time_dosurf_av = MOD( time_dosurf_av, MAX( dt_dosurf_av, dt_3d ) )
1618	ENDIF
1619	ENDIF
1620
1621	!
1622	!-- Output of particle time series
1623	IF ( particle_advection ) THEN
1624	IF ( time_dopts >= dt_dopts .OR. &
1625	( time_since_reference_point >= particle_advection_start .AND. &
1626	first_call_lpm ) ) THEN
1627	CALL lpm_data_output_ptseries
1628	time_dopts = MOD( time_dopts, MAX( dt_dopts, dt_3d ) )
1629	ENDIF
1630	ENDIF
1631
1632	!
1633	!-- If required, set the heat flux for the next time step to a random value
1634	IF ( constant_heatflux .AND. random_heatflux ) THEN
1635	IF ( surf_def_h(0)%ns >= 1 ) THEN
1636	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1637	CALL disturb_heatflux( surf_def_h(0) )
1638	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1639	ENDIF
1640	IF ( surf_lsm_h%ns >= 1 ) THEN
1641	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1642	CALL disturb_heatflux( surf_lsm_h )
1643	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1644	ENDIF
1645	IF ( surf_usm_h%ns >= 1 ) THEN
1646	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1647	CALL disturb_heatflux( surf_usm_h )
1648	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1649	ENDIF
1650	ENDIF
1651
1652	!
1653	!-- Execute alle other module actions routunes
1654	CALL module_interface_actions( 'after_timestep' )
1655
1656	!
1657	!-- Determine size of next time step. Save timestep dt_3d because it is
1658	!-- newly calculated in routine timestep, but required further below for
1659	!-- steering the run control output interval
1660	dt_3d_old = dt_3d
1661	CALL timestep
1662
1663	#if defined( __parallel )
1664	!
1665	!-- Synchronize the timestep in case of nested run.
1666	IF ( nested_run ) THEN
1667	!
1668	!-- Synchronize by unifying the time step.
1669	!-- Global minimum of all time-steps is used for all.
1670	CALL pmci_synchronize
1671	ENDIF
1672	#endif
1673
1674	!
1675	!-- Computation and output of run control parameters.
1676	!-- This is also done whenever perturbations have been imposed
1677	IF ( time_run_control >= dt_run_control .OR. &
1678	timestep_scheme(1:5) /= 'runge' .OR. disturbance_created ) &
1679	THEN
1680	CALL run_control
1681	IF ( time_run_control >= dt_run_control ) THEN
1682	time_run_control = MOD( time_run_control, MAX( dt_run_control, dt_3d_old ) )
1683	ENDIF
1684	ENDIF
1685
1686	!
1687	!-- Output elapsed simulated time in form of a progress bar on stdout
1688	IF ( myid == 0 ) CALL output_progress_bar
1689
1690	CALL cpu_log( log_point_s(10), 'timesteps', 'stop' )
1691
1692
1693	ENDDO ! time loop
1694
1695	#if defined( _OPENACC )
1696	CALL exit_surface_arrays
1697	#endif
1698	!$ACC END DATA
1699	!$ACC END DATA
1700	!$ACC END DATA
1701	!$ACC END DATA
1702	!$ACC END DATA
1703	!$ACC END DATA
1704	!$ACC END DATA
1705	!$ACC END DATA
1706
1707	IF ( myid == 0 ) CALL finish_progress_bar
1708
1709	CALL location_message( 'atmosphere (and/or ocean) time-stepping', 'finished' )
1710
1711	END SUBROUTINE time_integration

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