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source: palm/trunk/SOURCE/time_integration.f90 @ 4511

Last change on this file since 4511 was 4511, checked in by raasch, 4 years ago
chemistry decycling replaced by explicit setting of lateral boundary conditions
Property svn:keywords set to `Id`
File size: 73.0 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 4511 2020-04-30 12:20:40Z raasch $
27	! chemistry decycling replaced by explicit setting of lateral boundary conditions
28	!
29	! 4508 2020-04-24 13:32:20Z raasch
30	! salsa decycling replaced by explicit setting of lateral boundary conditions
31	!
32	! 4502 2020-04-17 16:14:16Z schwenkel
33	! Implementation of ice microphysics
34	!
35	! 4472 2020-03-24 12:21:00Z Giersch
36	! OPENACC COPYIN directive for ddx and ddy added
37	!
38	! 4466 2020-03-20 16:14:41Z suehring
39	! Add advection fluxes to ACC copyin
40	!
41	! 4457 2020-03-11 14:20:43Z raasch
42	! use statement for exchange horiz added
43	!
44	! 4444 2020-03-05 15:59:50Z raasch
45	! bugfix: cpp-directives for serial mode added
46	!
47	! 4420 2020-02-24 14:13:56Z maronga
48	! Added output control for wind turbine model
49	!
50	! 4403 2020-02-12 13:08:46Z banzhafs
51	! Allowing both existing and on-demand emission read modes
52	!
53	! 4360 2020-01-07 11:25:50Z suehring
54	! Bugfix, hour_call_emis uninitialized at first call of time_integration
55	!
56	! 4346 2019-12-18 11:55:56Z motisi
57	! Introduction of wall_flags_total_0, which currently sets bits based on static
58	! topography information used in wall_flags_static_0
59	!
60	! 4329 2019-12-10 15:46:36Z motisi
61	! Renamed wall_flags_0 to wall_flags_static_0
62	!
63	! 4281 2019-10-29 15:15:39Z schwenkel
64	! Moved boundary conditions to module interface
65	!
66	! 4276 2019-10-28 16:03:29Z schwenkel
67	! Further modularization of lpm code components
68	!
69	! 4275 2019-10-28 15:34:55Z schwenkel
70	! Move call oft lpm to the end of intermediate timestep loop
71	!
72	! 4268 2019-10-17 11:29:38Z schwenkel
73	! Removing module specific boundary conditions an put them into their modules
74	!
75	! 4227 2019-09-10 18:04:34Z gronemeier
76	! implement new palm_date_time_mod
77	!
78	! 4226 2019-09-10 17:03:24Z suehring
79	! Changes in interface for the offline nesting
80	!
81	! 4182 2019-08-22 15:20:23Z scharf
82	! Corrected "Former revisions" section
83	!
84	! 4170 2019-08-19 17:12:31Z gronemeier
85	! copy diss, diss_p, tdiss_m to GPU
86	!
87	! 4144 2019-08-06 09:11:47Z raasch
88	! relational operators .EQ., .NE., etc. replaced by ==, /=, etc.
89	!
90	! 4126 2019-07-30 11:09:11Z gronemeier
91	! renamed routine to calculate uv exposure
92	!
93	! 4111 2019-07-22 18:16:57Z suehring
94	! advc_flags_1 / advc_flags_2 renamed to advc_flags_m / advc_flags_s
95	!
96	! 4069 2019-07-01 14:05:51Z Giersch
97	! Masked output running index mid has been introduced as a local variable to
98	! avoid runtime error (Loop variable has been modified) in time_integration
99	!
100	! 4064 2019-07-01 05:33:33Z gronemeier
101	! Moved call to radiation module out of intermediate time loop
102	!
103	! 4048 2019-06-21 21:00:21Z knoop
104	! Moved production_e_init call into turbulence_closure_mod
105	!
106	! 4047 2019-06-21 18:58:09Z knoop
107	! Added remainings of swap_timelevel upon its dissolution
108	!
109	! 4043 2019-06-18 16:59:00Z schwenkel
110	! Further LPM modularization
111	!
112	! 4039 2019-06-18 10:32:41Z suehring
113	! Rename subroutines in module for diagnostic quantities
114	!
115	! 4029 2019-06-14 14:04:35Z raasch
116	! exchange of ghost points and boundary conditions separated for chemical species and SALSA module,
117	! bugfix: decycling of chemistry species after nesting data transfer
118	!
119	! 4022 2019-06-12 11:52:39Z suehring
120	! Call synthetic turbulence generator at last RK3 substep right after boundary
121	! conditions are updated in offline nesting in order to assure that
122	! perturbations are always imposed
123	!
124	! 4017 2019-06-06 12:16:46Z schwenkel
125	! Mass (volume) flux correction included to ensure global mass conservation for child domains.
126	!
127	! 3994 2019-05-22 18:08:09Z suehring
128	! output of turbulence intensity added
129	!
130	! 3988 2019-05-22 11:32:37Z kanani
131	! Implement steerable output interval for virtual measurements
132	!
133	! 3968 2019-05-13 11:04:01Z suehring
134	! replace nspec_out with n_matched_vars
135	!
136	! 3929 2019-04-24 12:52:08Z banzhafs
137	! Reverse changes back from revision 3878: use chem_boundary_conds instead of
138	! chem_boundary_conds_decycle
139	!
140	!
141	! 3885 2019-04-11 11:29:34Z kanani
142	! Changes related to global restructuring of location messages and introduction
143	! of additional debug messages
144	!
145	! 3879 2019-04-08 20:25:23Z knoop
146	! Moved wtm_forces to module_interface_actions
147	!
148	! 3872 2019-04-08 15:03:06Z knoop
149	! Modifications made for salsa:
150	! - Call salsa_emission_update at each time step but do the checks within
151	! salsa_emission_update (i.e. skip_time_do_salsa >= time_since_reference_point
152	! and next_aero_emission_update <= time_since_reference_point ).
153	! - Renamed nbins --> nbins_aerosol, ncc_tot --> ncomponents_mass and
154	! ngast --> ngases_salsa and loop indices b, c and sg to ib, ic and ig
155	! - Apply nesting for salsa variables
156	! - Removed cpu_log calls speciffic for salsa.
157	!
158	! 3833 2019-03-28 15:04:04Z forkel
159	! added USE chem_gasphase_mod, replaced nspec by nspec since fixed compounds are not integrated
160	!
161	! 3820 2019-03-27 11:53:41Z forkel
162	! renamed do_emiss to emissions_anthropogenic (ecc)
163	!
164	!
165	! 3774 2019-03-04 10:52:49Z moh.hefny
166	! rephrase if statement to avoid unallocated array in case of
167	! nesting_offline is false (crashing during debug mode)
168	!
169	! 3761 2019-02-25 15:31:42Z raasch $
170	! module section re-formatted and openacc required variables moved to separate section,
171	! re-formatting to 100 char line width
172	!
173	! 3745 2019-02-15 18:57:56Z suehring
174	! Call indoor model after first timestep
175	!
176	! 3744 2019-02-15 18:38:58Z suehring
177	! - Moved call of bio_calculate_thermal_index_maps from biometeorology module to
178	! time_integration to make sure averaged input is updated before calculating.
179	!
180	! 3739 2019-02-13 08:05:17Z dom_dwd_user
181	! Removed everything related to "time_bio_results" as this is never used.
182	!
183	! 3724 2019-02-06 16:28:23Z kanani
184	! Correct double-used log_point_s unit
185	!
186	! 3719 2019-02-06 13:10:18Z kanani
187	! - removed wind_turbine cpu measurement, since same time is measured inside
188	! wtm_forces subroutine as special measures
189	! - moved the numerous vnest cpulog to special measures
190	! - extended radiation cpulog over entire radiation part,
191	! moved radiation_interactions cpulog to special measures
192	! - moved some cpu_log calls to this routine for better overview
193	!
194	! 3705 2019-01-29 19:56:39Z suehring
195	! Data output for virtual measurements added
196	!
197	! 3704 2019-01-29 19:51:41Z suehring
198	! Rename subroutines for surface-data output
199	!
200	! 3647 2019-01-02 14:10:44Z kanani
201	! Bugfix: add time_since_reference_point to IF clause for data_output calls
202	! (otherwise skip_time_* values don't come into affect with dt_do* = 0.0).
203	! Clean up indoor_model and biometeorology model call.
204	!
205	! Revision 1.1 1997/08/11 06:19:04 raasch
206	! Initial revision
207	!
208	!
209	! Description:
210	! ------------
211	!> Integration in time of the model equations, statistical analysis and graphic
212	!> output
213	!------------------------------------------------------------------------------!
214	SUBROUTINE time_integration
215
216
217	USE advec_ws, &
218	ONLY: ws_statistics
219
220	USE arrays_3d, &
221	ONLY: diss, diss_p, dzu, e_p, nc_p, ni_p, nr_p, prho, pt, pt_p, pt_init, q, qc_p, qr_p, &
222	q_init, q_p, qi_p, ref_state, rho_ocean, sa_p, s_p, tend, u, u_p, v, vpt, v_p, w_p
223
224	#if defined( __parallel ) && ! defined( _OPENACC )
225	USE arrays_3d, &
226	ONLY: e, nc, ni, nr, qc, qi, qr, s, w
227	#endif
228
229	USE biometeorology_mod, &
230	ONLY: bio_calculate_thermal_index_maps, thermal_comfort, bio_calculate_uv_exposure, &
231	uv_exposure
232
233	USE bulk_cloud_model_mod, &
234	ONLY: bulk_cloud_model, calc_liquid_water_content, collision_turbulence, &
235	microphysics_ice_extension, microphysics_morrison, microphysics_seifert
236
237	USE calc_mean_profile_mod, &
238	ONLY: calc_mean_profile
239
240	USE chem_emissions_mod, &
241	ONLY: chem_emissions_setup, chem_emissions_update_on_demand
242
243	USE chem_gasphase_mod, &
244	ONLY: nvar
245
246	USE chem_modules, &
247	ONLY: bc_cs_t_val, chem_species, communicator_chem, emissions_anthropogenic, &
248	emiss_read_legacy_mode, n_matched_vars
249
250	USE control_parameters, &
251	ONLY: advected_distance_x, advected_distance_y, air_chemistry, average_count_3d, &
252	averaging_interval, averaging_interval_pr, bc_lr_cyc, bc_ns_cyc, bc_pt_t_val, &
253	bc_q_t_val, biometeorology, call_psolver_at_all_substeps, child_domain, &
254	constant_flux_layer, constant_heatflux, create_disturbances, &
255	dopr_n, constant_diffusion, coupling_mode, coupling_start_time, &
256	current_timestep_number, disturbance_created, disturbance_energy_limit, dist_range, &
257	do_sum, dt_3d, dt_averaging_input, dt_averaging_input_pr, dt_coupling, &
258	dt_data_output_av, dt_disturb, dt_do2d_xy, dt_do2d_xz, dt_do2d_yz, dt_do3d, &
259	dt_domask,dt_dopts, dt_dopr, dt_dopr_listing, dt_dots, dt_run_control, &
260	end_time, first_call_lpm, first_call_mas, galilei_transformation, humidity, &
261	indoor_model, intermediate_timestep_count, intermediate_timestep_count_max, &
262	land_surface, large_scale_forcing, loop_optimization, lsf_surf, lsf_vert, masks, &
263	multi_agent_system_end, multi_agent_system_start, nesting_offline, neutral, &
264	nr_timesteps_this_run, nudging, ocean_mode, passive_scalar, pt_reference, &
265	pt_slope_offset, random_heatflux, rans_tke_e, run_coupled, salsa, &
266	simulated_time, simulated_time_chr, skip_time_do2d_xy, skip_time_do2d_xz, &
267	skip_time_do2d_yz, skip_time_do3d, skip_time_domask, skip_time_dopr, &
268	skip_time_data_output_av, sloping_surface, stop_dt, surface_output, &
269	terminate_coupled, terminate_run, timestep_scheme, time_coupling, time_do2d_xy, &
270	time_do2d_xz, time_do2d_yz, time_do3d, time_domask, time_dopr, time_dopr_av, &
271	time_dopr_listing, time_dopts, time_dosp, time_dosp_av, time_dots, time_do_av, &
272	time_do_sla, time_disturb, time_run_control, time_since_reference_point, &
273	timestep_count, turbulent_inflow, turbulent_outflow, urban_surface, &
274	use_initial_profile_as_reference, use_single_reference_value, u_gtrans, v_gtrans, &
275	virtual_flight, virtual_measurement, ws_scheme_mom, ws_scheme_sca
276
277	#if defined( __parallel )
278	USE control_parameters, &
279	ONLY: rans_mode
280	#endif
281
282	USE cpulog, &
283	ONLY: cpu_log, log_point, log_point_s
284
285	USE diagnostic_output_quantities_mod, &
286	ONLY: doq_calculate, &
287	timestep_number_at_prev_calc
288
289	USE exchange_horiz_mod, &
290	ONLY: exchange_horiz
291
292	USE flight_mod, &
293	ONLY: flight_measurement
294
295	USE grid_variables, &
296	ONLY: ddx, ddy
297
298	USE indices, &
299	ONLY: nbgp, nx, nxl, nxlg, nxr, nxrg, nzb, nzt
300
301	USE indoor_model_mod, &
302	ONLY: dt_indoor, im_main_heatcool, time_indoor
303
304	USE interfaces
305
306	USE kinds
307
308	USE land_surface_model_mod, &
309	ONLY: lsm_boundary_condition, lsm_energy_balance, lsm_soil_model, skip_time_do_lsm
310
311	USE lagrangian_particle_model_mod, &
312	ONLY: lpm_data_output_ptseries
313
314	USE lsf_nudging_mod, &
315	ONLY: calc_tnudge, ls_forcing_surf, ls_forcing_vert, nudge_ref
316
317	USE module_interface, &
318	ONLY: module_interface_actions, module_interface_swap_timelevel, &
319	module_interface_boundary_conditions
320
321	USE multi_agent_system_mod, &
322	ONLY: agents_active, multi_agent_system
323
324	USE nesting_offl_mod, &
325	ONLY: nesting_offl_bc, &
326	nesting_offl_geostrophic_wind, &
327	nesting_offl_input, &
328	nesting_offl_interpolation_factor, &
329	nesting_offl_mass_conservation
330
331	USE netcdf_data_input_mod, &
332	ONLY: chem_emis, chem_emis_att
333
334	USE ocean_mod, &
335	ONLY: prho_reference
336
337	USE palm_date_time_mod, &
338	ONLY: get_date_time
339
340	USE particle_attributes, &
341	ONLY: particle_advection, particle_advection_start, use_sgs_for_particles, wang_kernel
342
343	USE pegrid
344
345	#if defined( __parallel )
346	USE pmc_interface, &
347	ONLY: nested_run, nesting_mode, pmci_boundary_conds, pmci_datatrans, pmci_synchronize, &
348	pmci_ensure_nest_mass_conservation, pmci_ensure_nest_mass_conservation_vertical, &
349	pmci_set_swaplevel
350	#endif
351
352	USE progress_bar, &
353	ONLY: finish_progress_bar, output_progress_bar
354
355	USE prognostic_equations_mod, &
356	ONLY: prognostic_equations_cache, prognostic_equations_vector
357
358	USE radiation_model_mod, &
359	ONLY: dt_radiation, force_radiation_call, radiation, radiation_control, &
360	radiation_interaction, radiation_interactions, skip_time_do_radiation, time_radiation
361
362	USE salsa_mod, &
363	ONLY: aerosol_number, aerosol_mass, bc_am_t_val, bc_an_t_val, bc_gt_t_val, &
364	communicator_salsa, nbins_aerosol, ncomponents_mass, ngases_salsa, &
365	salsa_boundary_conditions, salsa_emission_update, salsa_gas, salsa_gases_from_chem, &
366	skip_time_do_salsa
367
368	USE spectra_mod, &
369	ONLY: average_count_sp, averaging_interval_sp, calc_spectra, dt_dosp, skip_time_dosp
370
371	USE statistics, &
372	ONLY: flow_statistics_called, hom, pr_palm, sums_ls_l
373
374
375	USE surface_layer_fluxes_mod, &
376	ONLY: surface_layer_fluxes
377
378	USE surface_data_output_mod, &
379	ONLY: average_count_surf, averaging_interval_surf, dt_dosurf, dt_dosurf_av, &
380	surface_data_output, surface_data_output_averaging, skip_time_dosurf, &
381	skip_time_dosurf_av, time_dosurf, time_dosurf_av
382
383	USE surface_mod, &
384	ONLY: surf_def_h, surf_lsm_h, surf_usm_h
385
386	USE synthetic_turbulence_generator_mod, &
387	ONLY: dt_stg_call, dt_stg_adjust, parametrize_inflow_turbulence, stg_adjust, stg_main, &
388	time_stg_adjust, time_stg_call, use_syn_turb_gen
389
390	USE turbulence_closure_mod, &
391	ONLY: tcm_diffusivities
392
393	USE urban_surface_mod, &
394	ONLY: usm_boundary_condition, usm_material_heat_model, usm_material_model, &
395	usm_surface_energy_balance, usm_green_heat_model
396
397	USE vertical_nesting_mod, &
398	ONLY: vnested, vnest_init
399
400	#if defined( __parallel )
401	USE vertical_nesting_mod, &
402	ONLY: vnest_anterpolate, vnest_anterpolate_e, vnest_boundary_conds, &
403	vnest_boundary_conds_khkm, vnest_deallocate, vnest_init_fine, vnest_start_time
404	#endif
405
406	USE virtual_measurement_mod, &
407	ONLY: dt_virtual_measurement, &
408	time_virtual_measurement, &
409	vm_data_output, &
410	vm_sampling, &
411	vm_time_start
412
413
414	USE wind_turbine_model_mod, &
415	ONLY: dt_data_output_wtm, time_wtm, wind_turbine, wtm_data_output
416
417	#if defined( _OPENACC )
418	USE arrays_3d, &
419	ONLY: d, dd2zu, ddzu, ddzw, &
420	diss_l_u, &
421	diss_l_v, &
422	diss_l_w, &
423	diss_s_u, &
424	diss_s_v, &
425	diss_s_w, &
426	drho_air, drho_air_zw, dzw, e, &
427	flux_l_u, &
428	flux_l_v, &
429	flux_l_w, &
430	flux_s_u, &
431	flux_s_v, &
432	flux_s_w, &
433	heatflux_output_conversion, &
434	kh, km, momentumflux_output_conversion, nc, ni, nr, p, ptdf_x, ptdf_y, qc, qi, qr, rdf, &
435	rdf_sc, rho_air, rho_air_zw, s, tdiss_m, te_m, tpt_m, tu_m, tv_m, tw_m, ug, u_init, &
436	u_stokes_zu, vg, v_init, v_stokes_zu, w, zu
437
438	USE control_parameters, &
439	ONLY: tsc
440
441	USE indices, &
442	ONLY: advc_flags_m, advc_flags_s, nyn, nyng, nys, nysg, nz, nzb_max, wall_flags_total_0
443
444	USE statistics, &
445	ONLY: rmask, statistic_regions, sums_l, sums_l_l, sums_us2_ws_l, &
446	sums_wsus_ws_l, sums_vs2_ws_l, sums_wsvs_ws_l, sums_ws2_ws_l, sums_wspts_ws_l, &
447	sums_wsqs_ws_l, sums_wssas_ws_l, sums_wsqcs_ws_l, sums_wsqrs_ws_l, sums_wsncs_ws_l, &
448	sums_wsnrs_ws_l, sums_wsss_ws_l, weight_substep, sums_salsa_ws_l, sums_wsqis_ws_l, &
449	sums_wsnis_ws_l
450
451	USE surface_mod, &
452	ONLY: bc_h, enter_surface_arrays, exit_surface_arrays
453	#endif
454
455
456	IMPLICIT NONE
457
458	CHARACTER (LEN=9) :: time_to_string !<
459
460	INTEGER(iwp) :: hour !< hour of current time
461	INTEGER(iwp) :: hour_call_emis = -1 !< last hour where emission was called
462	INTEGER(iwp) :: ib !< index for aerosol size bins
463	INTEGER(iwp) :: ic !< index for aerosol mass bins
464	INTEGER(iwp) :: icc !< additional index for aerosol mass bins
465	INTEGER(iwp) :: ig !< index for salsa gases
466	INTEGER(iwp) :: mid !< masked output running index
467	INTEGER(iwp) :: n !< loop counter for chemistry species
468
469	REAL(wp) :: dt_3d_old !< temporary storage of timestep to be used for
470	!< steering of run control output interval
471	REAL(wp) :: time_since_reference_point_save !< original value of
472	!< time_since_reference_point
473
474
475	!
476	!-- Copy data from arrays_3d
477	!$ACC DATA &
478	!$ACC COPY(d(nzb+1:nzt,nys:nyn,nxl:nxr)) &
479	!$ACC COPY(diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
480	!$ACC COPY(e(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
481	!$ACC COPY(u(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
482	!$ACC COPY(v(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
483	!$ACC COPY(w(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
484	!$ACC COPY(kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
485	!$ACC COPY(km(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
486	!$ACC COPY(p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
487	!$ACC COPY(pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
488
489	!$ACC DATA &
490	!$ACC COPYIN(diss_l_u(0:nz+1,nys:nyn,0), flux_l_u(0:nz+1,nys:nyn,0)) &
491	!$ACC COPYIN(diss_l_v(0:nz+1,nys:nyn,0), flux_l_v(0:nz+1,nys:nyn,0)) &
492	!$ACC COPYIN(diss_l_w(0:nz+1,nys:nyn,0), flux_l_w(0:nz+1,nys:nyn,0)) &
493	!$ACC COPYIN(diss_s_u(0:nz+1,0), flux_s_u(0:nz+1,0)) &
494	!$ACC COPYIN(diss_s_v(0:nz+1,0), flux_s_v(0:nz+1,0)) &
495	!$ACC COPYIN(diss_s_w(0:nz+1,0), flux_s_w(0:nz+1,0)) &
496	!$ACC COPY(diss_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
497	!$ACC COPY(e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
498	!$ACC COPY(u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
499	!$ACC COPY(v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
500	!$ACC COPY(w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
501	!$ACC COPY(pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
502	!$ACC COPY(tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
503	!$ACC COPY(tdiss_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
504	!$ACC COPY(te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
505	!$ACC COPY(tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
506	!$ACC COPY(tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
507	!$ACC COPY(tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
508	!$ACC COPY(tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
509
510	!$ACC DATA &
511	!$ACC COPYIN(rho_air(nzb:nzt+1), drho_air(nzb:nzt+1)) &
512	!$ACC COPYIN(rho_air_zw(nzb:nzt+1), drho_air_zw(nzb:nzt+1)) &
513	!$ACC COPYIN(zu(nzb:nzt+1)) &
514	!$ACC COPYIN(dzu(1:nzt+1), dzw(1:nzt+1)) &
515	!$ACC COPYIN(ddzu(1:nzt+1), dd2zu(1:nzt)) &
516	!$ACC COPYIN(ddzw(1:nzt+1)) &
517	!$ACC COPYIN(heatflux_output_conversion(nzb:nzt+1)) &
518	!$ACC COPYIN(momentumflux_output_conversion(nzb:nzt+1)) &
519	!$ACC COPYIN(rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt)) &
520	!$ACC COPYIN(ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng)) &
521	!$ACC COPYIN(ref_state(0:nz+1)) &
522	!$ACC COPYIN(u_init(0:nz+1), v_init(0:nz+1)) &
523	!$ACC COPYIN(u_stokes_zu(nzb:nzt+1), v_stokes_zu(nzb:nzt+1)) &
524	!$ACC COPYIN(pt_init(0:nz+1)) &
525	!$ACC COPYIN(ug(0:nz+1), vg(0:nz+1))
526
527	!
528	!-- Copy data from control_parameters
529	!$ACC DATA &
530	!$ACC COPYIN(tsc(1:5))
531
532	!
533	!-- Copy data from grid_variables
534	!$ACC DATA &
535	!$ACC COPYIN(ddx, ddy)
536
537	!
538	!-- Copy data from indices
539	!$ACC DATA &
540	!$ACC COPYIN(advc_flags_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
541	!$ACC COPYIN(advc_flags_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
542	!$ACC COPYIN(wall_flags_total_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
543
544	!
545	!-- Copy data from surface_mod
546	!$ACC DATA &
547	!$ACC COPYIN(bc_h(0:1)) &
548	!$ACC COPYIN(bc_h(0)%i(1:bc_h(0)%ns)) &
549	!$ACC COPYIN(bc_h(0)%j(1:bc_h(0)%ns)) &
550	!$ACC COPYIN(bc_h(0)%k(1:bc_h(0)%ns)) &
551	!$ACC COPYIN(bc_h(1)%i(1:bc_h(1)%ns)) &
552	!$ACC COPYIN(bc_h(1)%j(1:bc_h(1)%ns)) &
553	!$ACC COPYIN(bc_h(1)%k(1:bc_h(1)%ns))
554
555	!
556	!-- Copy data from statistics
557	!$ACC DATA &
558	!$ACC COPYIN(hom(0:nz+1,1:2,1:4,0)) &
559	!$ACC COPYIN(rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions)) &
560	!$ACC COPYIN(weight_substep(1:intermediate_timestep_count_max)) &
561	!$ACC COPY(sums_l(nzb:nzt+1,1:pr_palm,0)) &
562	!$ACC COPY(sums_l_l(nzb:nzt+1,0:statistic_regions,0)) &
563	!$ACC COPY(sums_us2_ws_l(nzb:nzt+1,0)) &
564	!$ACC COPY(sums_wsus_ws_l(nzb:nzt+1,0)) &
565	!$ACC COPY(sums_vs2_ws_l(nzb:nzt+1,0)) &
566	!$ACC COPY(sums_wsvs_ws_l(nzb:nzt+1,0)) &
567	!$ACC COPY(sums_ws2_ws_l(nzb:nzt+1,0)) &
568	!$ACC COPY(sums_wspts_ws_l(nzb:nzt+1,0)) &
569	!$ACC COPY(sums_wssas_ws_l(nzb:nzt+1,0)) &
570	!$ACC COPY(sums_wsqs_ws_l(nzb:nzt+1,0)) &
571	!$ACC COPY(sums_wsqcs_ws_l(nzb:nzt+1,0)) &
572	!$ACC COPY(sums_wsqis_ws_l(nzb:nzt+1,0)) &
573	!$ACC COPY(sums_wsqrs_ws_l(nzb:nzt+1,0)) &
574	!$ACC COPY(sums_wsncs_ws_l(nzb:nzt+1,0)) &
575	!$ACC COPY(sums_wsnis_ws_l(nzb:nzt+1,0)) &
576	!$ACC COPY(sums_wsnrs_ws_l(nzb:nzt+1,0)) &
577	!$ACC COPY(sums_wsss_ws_l(nzb:nzt+1,0)) &
578	!$ACC COPY(sums_salsa_ws_l(nzb:nzt+1,0))
579
580	!
581	!-- Next statement is to avoid compiler warnings about unused variables. Please
582	!-- remove in case that you are using them. ddx and ddy need to be defined in
583	!-- time_integration because of ACC COPYIN directive.
584	ddx = ddx
585	ddy = ddy
586
587	#if defined( _OPENACC )
588	CALL enter_surface_arrays
589	#endif
590
591	!
592	!-- At beginning determine the first time step
593	CALL timestep
594
595	#if defined( __parallel )
596	!
597	!-- Synchronize the timestep in case of nested run.
598	IF ( nested_run ) THEN
599	!
600	!-- Synchronization by unifying the time step.
601	!-- Global minimum of all time-steps is used for all.
602	CALL pmci_synchronize
603	ENDIF
604	#endif
605
606	!
607	!-- Determine and print out the run control quantities before the first time
608	!-- step of this run. For the initial run, some statistics (e.g. divergence)
609	!-- need to be determined first --> CALL flow_statistics at the beginning of
610	!-- run_control
611	CALL run_control
612	!
613	!-- Data exchange between coupled models in case that a call has been omitted
614	!-- at the end of the previous run of a job chain.
615	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled .AND. .NOT. vnested ) THEN
616	!
617	!-- In case of model termination initiated by the local model the coupler
618	!-- must not be called because this would again cause an MPI hang.
619	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
620	CALL surface_coupler
621	time_coupling = time_coupling - dt_coupling
622	ENDDO
623	IF (time_coupling == 0.0_wp .AND. time_since_reference_point < dt_coupling ) THEN
624	time_coupling = time_since_reference_point
625	ENDIF
626	ENDIF
627
628	CALL location_message( 'atmosphere (and/or ocean) time-stepping', 'start' )
629
630	!
631	!-- Start of the time loop
632	DO WHILE ( simulated_time < end_time .AND. .NOT. stop_dt .AND. .NOT. terminate_run )
633
634	CALL cpu_log( log_point_s(10), 'timesteps', 'start' )
635
636	#if defined( __parallel )
637	!
638	!-- Vertical nesting: initialize fine grid
639	IF ( vnested ) THEN
640	IF ( .NOT. vnest_init .AND. simulated_time >= vnest_start_time ) THEN
641	CALL cpu_log( log_point_s(22), 'vnest_init', 'start' )
642	CALL vnest_init_fine
643	vnest_init = .TRUE.
644	CALL cpu_log( log_point_s(22), 'vnest_init', 'stop' )
645	ENDIF
646	ENDIF
647	#endif
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_extension ) 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	!
868	!-- Vertical nesting: Interpolate fine grid data to the coarse grid
869	IF ( vnest_init ) THEN
870	CALL cpu_log( log_point_s(37), 'vnest_anterpolate', 'start' )
871	CALL vnest_anterpolate
872	CALL cpu_log( log_point_s(37), 'vnest_anterpolate', 'stop' )
873	ENDIF
874
875	IF ( nested_run ) THEN
876
877	CALL cpu_log( log_point(60), 'nesting', 'start' )
878	!
879	!-- Domain nesting. The data transfer subroutines pmci_parent_datatrans
880	!-- and pmci_child_datatrans are called inside the wrapper
881	!-- subroutine pmci_datatrans according to the control parameters
882	!-- nesting_mode and nesting_datatransfer_mode.
883	!-- TO_DO: why is nesting_mode given as a parameter here?
884	CALL pmci_datatrans( nesting_mode )
885
886	IF ( TRIM( nesting_mode ) == 'two-way' .OR. nesting_mode == 'vertical' ) THEN
887
888	CALL cpu_log( log_point_s(92), 'exchange-horiz-nest', 'start' )
889	!
890	!-- Exchange_horiz is needed for all parent-domains after the
891	!-- anterpolation
892	CALL exchange_horiz( u, nbgp )
893	CALL exchange_horiz( v, nbgp )
894	CALL exchange_horiz( w, nbgp )
895	IF ( .NOT. neutral ) CALL exchange_horiz( pt, nbgp )
896
897	IF ( humidity ) THEN
898
899	CALL exchange_horiz( q, nbgp )
900
901	IF ( bulk_cloud_model .AND. microphysics_morrison ) THEN
902	CALL exchange_horiz( qc, nbgp )
903	CALL exchange_horiz( nc, nbgp )
904	ENDIF
905	IF ( bulk_cloud_model .AND. microphysics_seifert ) THEN
906	CALL exchange_horiz( qr, nbgp )
907	CALL exchange_horiz( nr, nbgp )
908	ENDIF
909	IF ( bulk_cloud_model .AND. microphysics_ice_extension ) THEN
910	CALL exchange_horiz( qi, nbgp )
911	CALL exchange_horiz( ni, nbgp )
912	ENDIF
913
914	ENDIF
915
916	IF ( passive_scalar ) CALL exchange_horiz( s, nbgp )
917
918	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e, nbgp )
919
920	IF ( .NOT. constant_diffusion .AND. rans_mode .AND. rans_tke_e ) THEN
921	CALL exchange_horiz( diss, nbgp )
922	ENDIF
923
924	IF ( air_chemistry ) THEN
925	DO n = 1, nvar
926	CALL exchange_horiz( chem_species(n)%conc, nbgp, &
927	alternative_communicator = communicator_chem )
928	ENDDO
929	ENDIF
930
931	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
932	DO ib = 1, nbins_aerosol
933	CALL exchange_horiz( aerosol_number(ib)%conc, nbgp, &
934	alternative_communicator = communicator_salsa )
935	DO ic = 1, ncomponents_mass
936	icc = ( ic - 1 ) * nbins_aerosol + ib
937	CALL exchange_horiz( aerosol_mass(icc)%conc, nbgp, &
938	alternative_communicator = communicator_salsa )
939	ENDDO
940	ENDDO
941	IF ( .NOT. salsa_gases_from_chem ) THEN
942	DO ig = 1, ngases_salsa
943	CALL exchange_horiz( salsa_gas(ig)%conc, nbgp, &
944	alternative_communicator = communicator_salsa )
945	ENDDO
946	ENDIF
947	ENDIF
948	CALL cpu_log( log_point_s(92), 'exchange-horiz-nest', 'stop' )
949
950	ENDIF
951
952	!
953	!-- Set boundary conditions again after interpolation and anterpolation.
954	CALL pmci_boundary_conds
955
956	CALL cpu_log( log_point(60), 'nesting', 'stop' )
957
958	ENDIF
959	#endif
960
961	!
962	!-- Temperature offset must be imposed at cyclic boundaries in x-direction
963	!-- when a sloping surface is used
964	IF ( sloping_surface ) THEN
965	IF ( nxl == 0 ) pt(:,:,nxlg:nxl-1) = pt(:,:,nxlg:nxl-1) - pt_slope_offset
966	IF ( nxr == nx ) pt(:,:,nxr+1:nxrg) = pt(:,:,nxr+1:nxrg) + pt_slope_offset
967	ENDIF
968
969	!
970	!-- Impose a turbulent inflow using the recycling method
971	IF ( turbulent_inflow ) CALL inflow_turbulence
972
973	!
974	!-- Set values at outflow boundary using the special outflow condition
975	IF ( turbulent_outflow ) CALL outflow_turbulence
976
977	!
978	!-- Impose a random perturbation on the horizontal velocity field
979	IF ( create_disturbances .AND. ( call_psolver_at_all_substeps .AND. &
980	intermediate_timestep_count == intermediate_timestep_count_max ) &
981	.OR. ( .NOT. call_psolver_at_all_substeps .AND. intermediate_timestep_count == 1 ) ) &
982	THEN
983	time_disturb = time_disturb + dt_3d
984	IF ( time_disturb >= dt_disturb ) THEN
985	IF ( disturbance_energy_limit /= 0.0_wp .AND. &
986	hom(nzb+5,1,pr_palm,0) < disturbance_energy_limit ) THEN
987	CALL disturb_field( 'u', tend, u )
988	CALL disturb_field( 'v', tend, v )
989	ELSEIF ( ( .NOT. bc_lr_cyc .OR. .NOT. bc_ns_cyc ) &
990	.AND. .NOT. child_domain .AND. .NOT. nesting_offline ) &
991	THEN
992	!
993	!-- Runs with a non-cyclic lateral wall need perturbations
994	!-- near the inflow throughout the whole simulation
995	dist_range = 1
996	CALL disturb_field( 'u', tend, u )
997	CALL disturb_field( 'v', tend, v )
998	dist_range = 0
999	ENDIF
1000	time_disturb = time_disturb - dt_disturb
1001	ENDIF
1002	ENDIF
1003
1004	!
1005	!-- Map forcing data derived from larger scale model onto domain
1006	!-- boundaries. Further, update geostrophic wind components.
1007	IF ( nesting_offline .AND. intermediate_timestep_count == &
1008	intermediate_timestep_count_max ) THEN
1009	!-- Determine interpolation factor before boundary conditions and geostrophic wind
1010	!-- is updated.
1011	CALL nesting_offl_interpolation_factor
1012	CALL nesting_offl_bc
1013	CALL nesting_offl_geostrophic_wind
1014	ENDIF
1015	!
1016	!-- Impose a turbulent inflow using synthetic generated turbulence.
1017	IF ( use_syn_turb_gen .AND. &
1018	intermediate_timestep_count == intermediate_timestep_count_max ) THEN
1019	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'start' )
1020	CALL stg_main
1021	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'stop' )
1022	ENDIF
1023	!
1024	!-- Ensure mass conservation. This need to be done after imposing
1025	!-- synthetic turbulence and top boundary condition for pressure is set to
1026	!-- Neumann conditions.
1027	!-- Is this also required in case of Dirichlet?
1028	IF ( nesting_offline ) CALL nesting_offl_mass_conservation
1029	!
1030	!-- Reduce the velocity divergence via the equation for perturbation
1031	!-- pressure.
1032	IF ( intermediate_timestep_count == 1 .OR. &
1033	call_psolver_at_all_substeps ) THEN
1034
1035	IF ( vnest_init ) THEN
1036	#if defined( __parallel )
1037	!
1038	!-- Compute pressure in the CG, interpolate top boundary conditions
1039	!-- to the FG and then compute pressure in the FG
1040	IF ( coupling_mode == 'vnested_crse' ) CALL pres
1041
1042	CALL cpu_log( log_point_s(30), 'vnest_bc', 'start' )
1043	CALL vnest_boundary_conds
1044	CALL cpu_log( log_point_s(30), 'vnest_bc', 'stop' )
1045
1046	IF ( coupling_mode == 'vnested_fine' ) CALL pres
1047
1048	!-- Anterpolate TKE, satisfy Germano Identity
1049	CALL cpu_log( log_point_s(28), 'vnest_anter_e', 'start' )
1050	CALL vnest_anterpolate_e
1051	CALL cpu_log( log_point_s(28), 'vnest_anter_e', 'stop' )
1052	#else
1053	CONTINUE
1054	#endif
1055
1056	ELSE
1057	#if defined( __parallel )
1058	!
1059	!-- Mass (volume) flux correction to ensure global mass conservation for child domains.
1060	IF ( child_domain ) THEN
1061	IF ( nesting_mode == 'vertical' ) THEN
1062	CALL pmci_ensure_nest_mass_conservation_vertical
1063	ELSE
1064	CALL pmci_ensure_nest_mass_conservation
1065	ENDIF
1066	ENDIF
1067	#endif
1068	CALL pres
1069
1070	ENDIF
1071
1072	ENDIF
1073	!
1074	!-- Particle transport/physics with the Lagrangian particle model
1075	!-- (only once during intermediate steps, because it uses an Euler-step)
1076	!-- ### particle model should be moved before prognostic_equations, in order
1077	!-- to regard droplet interactions directly
1078
1079	CALL module_interface_actions( 'after_pressure_solver' )
1080	!
1081	!-- Interaction of droplets with temperature and mixing ratio.
1082	!-- Droplet condensation and evaporation is calculated within
1083	!-- advec_particles.
1084	!
1085	!-- If required, compute liquid water content
1086	IF ( bulk_cloud_model ) THEN
1087	CALL calc_liquid_water_content
1088	ENDIF
1089	!
1090	!-- If required, compute virtual potential temperature
1091	IF ( humidity ) THEN
1092	CALL compute_vpt
1093	ENDIF
1094
1095	!
1096	!-- Compute the diffusion quantities
1097	IF ( .NOT. constant_diffusion ) THEN
1098
1099	!
1100	!-- Determine surface fluxes shf and qsws and surface values
1101	!-- pt_surface and q_surface in dependence on data from external
1102	!-- file LSF_DATA respectively
1103	IF ( ( large_scale_forcing .AND. lsf_surf ) .AND. &
1104	intermediate_timestep_count == intermediate_timestep_count_max ) &
1105	THEN
1106	CALL ls_forcing_surf( simulated_time )
1107	ENDIF
1108
1109	!
1110	!-- First the vertical (and horizontal) fluxes in the surface
1111	!-- (constant flux) layer are computed
1112	IF ( constant_flux_layer ) THEN
1113	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'start' )
1114	CALL surface_layer_fluxes
1115	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'stop' )
1116	ENDIF
1117	!
1118	!-- If required, solve the energy balance for the surface and run soil
1119	!-- model. Call for horizontal as well as vertical surfaces
1120	IF ( land_surface .AND. time_since_reference_point >= skip_time_do_lsm) THEN
1121
1122	CALL cpu_log( log_point(54), 'land_surface', 'start' )
1123	!
1124	!-- Call for horizontal upward-facing surfaces
1125	CALL lsm_energy_balance( .TRUE., -1 )
1126	CALL lsm_soil_model( .TRUE., -1, .TRUE. )
1127	!
1128	!-- Call for northward-facing surfaces
1129	CALL lsm_energy_balance( .FALSE., 0 )
1130	CALL lsm_soil_model( .FALSE., 0, .TRUE. )
1131	!
1132	!-- Call for southward-facing surfaces
1133	CALL lsm_energy_balance( .FALSE., 1 )
1134	CALL lsm_soil_model( .FALSE., 1, .TRUE. )
1135	!
1136	!-- Call for eastward-facing surfaces
1137	CALL lsm_energy_balance( .FALSE., 2 )
1138	CALL lsm_soil_model( .FALSE., 2, .TRUE. )
1139	!
1140	!-- Call for westward-facing surfaces
1141	CALL lsm_energy_balance( .FALSE., 3 )
1142	CALL lsm_soil_model( .FALSE., 3, .TRUE. )
1143
1144	!
1145	!-- At the end, set boundary conditons for potential temperature
1146	!-- and humidity after running the land-surface model. This
1147	!-- might be important for the nesting, where arrays are transfered.
1148	CALL lsm_boundary_condition
1149
1150
1151	CALL cpu_log( log_point(54), 'land_surface', 'stop' )
1152	ENDIF
1153	!
1154	!-- If required, solve the energy balance for urban surfaces and run
1155	!-- the material heat model
1156	IF (urban_surface) THEN
1157	CALL cpu_log( log_point(74), 'urban_surface', 'start' )
1158
1159	CALL usm_surface_energy_balance( .FALSE. )
1160	IF ( usm_material_model ) THEN
1161	CALL usm_green_heat_model
1162	CALL usm_material_heat_model ( .FALSE. )
1163	ENDIF
1164
1165	!
1166	!-- At the end, set boundary conditons for potential temperature
1167	!-- and humidity after running the urban-surface model. This
1168	!-- might be important for the nesting, where arrays are transfered.
1169	CALL usm_boundary_condition
1170
1171	CALL cpu_log( log_point(74), 'urban_surface', 'stop' )
1172	ENDIF
1173	!
1174	!-- Compute the diffusion coefficients
1175	CALL cpu_log( log_point(17), 'diffusivities', 'start' )
1176	IF ( .NOT. humidity ) THEN
1177	IF ( ocean_mode ) THEN
1178	CALL tcm_diffusivities( prho, prho_reference )
1179	ELSE
1180	CALL tcm_diffusivities( pt, pt_reference )
1181	ENDIF
1182	ELSE
1183	CALL tcm_diffusivities( vpt, pt_reference )
1184	ENDIF
1185	CALL cpu_log( log_point(17), 'diffusivities', 'stop' )
1186
1187	#if defined( __parallel )
1188	!
1189	!-- Vertical nesting: set fine grid eddy viscosity top boundary condition
1190	IF ( vnest_init ) CALL vnest_boundary_conds_khkm
1191	#endif
1192
1193	ENDIF
1194
1195	ENDDO ! Intermediate step loop
1196
1197	!
1198	!-- Will be used at some point by flow_statistics.
1199	!$ACC UPDATE &
1200	!$ACC HOST(sums_l_l(nzb:nzt+1,0:statistic_regions,0)) &
1201	!$ACC HOST(sums_us2_ws_l(nzb:nzt+1,0)) &
1202	!$ACC HOST(sums_wsus_ws_l(nzb:nzt+1,0)) &
1203	!$ACC HOST(sums_vs2_ws_l(nzb:nzt+1,0)) &
1204	!$ACC HOST(sums_wsvs_ws_l(nzb:nzt+1,0)) &
1205	!$ACC HOST(sums_ws2_ws_l(nzb:nzt+1,0)) &
1206	!$ACC HOST(sums_wspts_ws_l(nzb:nzt+1,0)) &
1207	!$ACC HOST(sums_wssas_ws_l(nzb:nzt+1,0)) &
1208	!$ACC HOST(sums_wsqs_ws_l(nzb:nzt+1,0)) &
1209	!$ACC HOST(sums_wsqcs_ws_l(nzb:nzt+1,0)) &
1210	!$ACC HOST(sums_wsqis_ws_l(nzb:nzt+1,0)) &
1211	!$ACC HOST(sums_wsqrs_ws_l(nzb:nzt+1,0)) &
1212	!$ACC HOST(sums_wsncs_ws_l(nzb:nzt+1,0)) &
1213	!$ACC HOST(sums_wsnis_ws_l(nzb:nzt+1,0)) &
1214	!$ACC HOST(sums_wsnrs_ws_l(nzb:nzt+1,0)) &
1215	!$ACC HOST(sums_wsss_ws_l(nzb:nzt+1,0)) &
1216	!$ACC HOST(sums_salsa_ws_l(nzb:nzt+1,0))
1217
1218	!
1219	!-- If required, calculate radiative fluxes and heating rates
1220	IF ( radiation .AND. time_since_reference_point > skip_time_do_radiation ) THEN
1221
1222	time_radiation = time_radiation + dt_3d
1223
1224	IF ( time_radiation >= dt_radiation .OR. force_radiation_call ) THEN
1225
1226	CALL cpu_log( log_point(50), 'radiation', 'start' )
1227
1228	IF ( .NOT. force_radiation_call ) THEN
1229	time_radiation = time_radiation - dt_radiation
1230	ENDIF
1231
1232	!
1233	!-- Adjust the current time to the time step of the radiation model.
1234	!-- Needed since radiation is pre-calculated and stored only on apparent
1235	!-- solar positions
1236	time_since_reference_point_save = time_since_reference_point
1237	time_since_reference_point = REAL( FLOOR( time_since_reference_point / &
1238	dt_radiation ), wp ) * dt_radiation
1239
1240	CALL radiation_control
1241
1242	IF ( ( urban_surface .OR. land_surface ) .AND. radiation_interactions ) THEN
1243	CALL cpu_log( log_point_s(46), 'radiation_interaction', 'start' )
1244	CALL radiation_interaction
1245	CALL cpu_log( log_point_s(46), 'radiation_interaction', 'stop' )
1246	ENDIF
1247
1248	!
1249	!-- Return the current time to its original value
1250	time_since_reference_point = time_since_reference_point_save
1251
1252	CALL cpu_log( log_point(50), 'radiation', 'stop' )
1253
1254	ENDIF
1255	ENDIF
1256
1257
1258	!
1259	!-- 20200203 (ECC)
1260	!-- allows for emission update mode in legacy mode as well as on-demand mode
1261	!-- note that under on-demand mode emission update is no longer restricted to
1262	!-- an hourly frequency, but whenever the simulation time corresponds to an
1263	!-- inrement in emission timestamp value
1264
1265	!
1266	!-- If required, consider chemical emissions
1267
1268	IF ( air_chemistry .AND. emissions_anthropogenic ) THEN
1269
1270	IF ( emiss_read_legacy_mode ) THEN
1271	!
1272	!-- get hourly index and updates emission data when the hour is passed
1273
1274	CALL get_date_time( time_since_reference_point, hour=hour )
1275
1276	IF ( hour_call_emis /= hour ) THEN
1277
1278	CALL chem_emissions_setup( chem_emis_att, chem_emis, n_matched_vars )
1279	hour_call_emis = hour
1280
1281	ENDIF
1282
1283	ELSE
1284
1285	CALL chem_emissions_update_on_demand
1286
1287	ENDIF
1288
1289	ENDIF
1290
1291
1292	!
1293	!-- If required, consider aerosol emissions for the salsa model
1294	IF ( salsa ) THEN
1295	!
1296	!-- Call emission routine to update emissions if needed
1297	CALL salsa_emission_update
1298
1299	ENDIF
1300	!
1301	!-- If required, calculate indoor temperature, waste heat, heat flux
1302	!-- through wall, etc.
1303	!-- dt_indoor steers the frequency of the indoor model calculations.
1304	!-- Note, at first timestep indoor model is called, in order to provide
1305	!-- a waste heat flux.
1306	IF ( indoor_model ) THEN
1307
1308	time_indoor = time_indoor + dt_3d
1309
1310	IF ( time_indoor >= dt_indoor .OR. current_timestep_number == 0 ) THEN
1311
1312	time_indoor = time_indoor - dt_indoor
1313
1314	CALL cpu_log( log_point(76), 'indoor_model', 'start' )
1315	CALL im_main_heatcool
1316	CALL cpu_log( log_point(76), 'indoor_model', 'stop' )
1317
1318	ENDIF
1319	ENDIF
1320	!
1321	!-- Increase simulation time and output times
1322	nr_timesteps_this_run = nr_timesteps_this_run + 1
1323	current_timestep_number = current_timestep_number + 1
1324	simulated_time = simulated_time + dt_3d
1325	time_since_reference_point = simulated_time - coupling_start_time
1326	simulated_time_chr = time_to_string( time_since_reference_point )
1327
1328
1329	IF ( time_since_reference_point >= skip_time_data_output_av ) THEN
1330	time_do_av = time_do_av + dt_3d
1331	ENDIF
1332	IF ( time_since_reference_point >= skip_time_do2d_xy ) THEN
1333	time_do2d_xy = time_do2d_xy + dt_3d
1334	ENDIF
1335	IF ( time_since_reference_point >= skip_time_do2d_xz ) THEN
1336	time_do2d_xz = time_do2d_xz + dt_3d
1337	ENDIF
1338	IF ( time_since_reference_point >= skip_time_do2d_yz ) THEN
1339	time_do2d_yz = time_do2d_yz + dt_3d
1340	ENDIF
1341	IF ( time_since_reference_point >= skip_time_do3d ) THEN
1342	time_do3d = time_do3d + dt_3d
1343	ENDIF
1344	DO mid = 1, masks
1345	IF ( time_since_reference_point >= skip_time_domask(mid) ) THEN
1346	time_domask(mid)= time_domask(mid) + dt_3d
1347	ENDIF
1348	ENDDO
1349	IF ( time_since_reference_point >= skip_time_dosp ) THEN
1350	time_dosp = time_dosp + dt_3d
1351	ENDIF
1352	time_dots = time_dots + dt_3d
1353	IF ( .NOT. first_call_lpm ) THEN
1354	time_dopts = time_dopts + dt_3d
1355	ENDIF
1356	IF ( time_since_reference_point >= skip_time_dopr ) THEN
1357	time_dopr = time_dopr + dt_3d
1358	ENDIF
1359	time_dopr_listing = time_dopr_listing + dt_3d
1360	time_run_control = time_run_control + dt_3d
1361	!
1362	!-- Increment time-counter for surface output
1363	IF ( surface_output ) THEN
1364	IF ( time_since_reference_point >= skip_time_dosurf ) THEN
1365	time_dosurf = time_dosurf + dt_3d
1366	ENDIF
1367	IF ( time_since_reference_point >= skip_time_dosurf_av ) THEN
1368	time_dosurf_av = time_dosurf_av + dt_3d
1369	ENDIF
1370	ENDIF
1371	!
1372	!-- Increment time-counter for virtual measurements
1373	IF ( virtual_measurement .AND. vm_time_start <= time_since_reference_point ) THEN
1374	time_virtual_measurement = time_virtual_measurement + dt_3d
1375	ENDIF
1376
1377	!
1378	!-- Increment time-counter for wind turbine data output
1379	IF ( wind_turbine ) THEN
1380	time_wtm = time_wtm + dt_3d
1381	ENDIF
1382
1383	!
1384	!-- In case of synthetic turbulence generation and parametrized turbulence
1385	!-- information, update the time counter and if required, adjust the
1386	!-- STG to new atmospheric conditions.
1387	IF ( use_syn_turb_gen ) THEN
1388	IF ( parametrize_inflow_turbulence ) THEN
1389	time_stg_adjust = time_stg_adjust + dt_3d
1390	IF ( time_stg_adjust >= dt_stg_adjust ) THEN
1391	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'start' )
1392	CALL stg_adjust
1393	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'stop' )
1394	ENDIF
1395	ENDIF
1396	time_stg_call = time_stg_call + dt_3d
1397	ENDIF
1398
1399	!
1400	!-- Data exchange between coupled models
1401	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled .AND. .NOT. vnested ) THEN
1402	time_coupling = time_coupling + dt_3d
1403
1404	!
1405	!-- In case of model termination initiated by the local model
1406	!-- (terminate_coupled > 0), the coupler must be skipped because it would
1407	!-- cause an MPI intercomminucation hang.
1408	!-- If necessary, the coupler will be called at the beginning of the
1409	!-- next restart run.
1410	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
1411	CALL surface_coupler
1412	time_coupling = time_coupling - dt_coupling
1413	ENDDO
1414	ENDIF
1415
1416	!
1417	!-- Biometeorology calculation of stationary thermal indices
1418	!-- Todo (kanani): biometeorology needs own time_... treatment.
1419	!-- It might be that time_do2d_xy differs from time_do3d,
1420	!-- and then we might get trouble with the biomet output,
1421	!-- because we can have 2d and/or 3d biomet output!!
1422	IF ( biometeorology &
1423	.AND. ( ( time_do3d >= dt_do3d .AND. time_since_reference_point >= skip_time_do3d ) &
1424	.OR. &
1425	( time_do2d_xy >= dt_do2d_xy .AND. time_since_reference_point >= skip_time_do2d_xy ) &
1426	) ) THEN
1427	!
1428	!-- If required, do thermal comfort calculations
1429	IF ( thermal_comfort ) THEN
1430	CALL bio_calculate_thermal_index_maps ( .FALSE. )
1431	ENDIF
1432	!
1433	!-- If required, do UV exposure calculations
1434	IF ( uv_exposure ) THEN
1435	CALL bio_calculate_uv_exposure
1436	ENDIF
1437	ENDIF
1438
1439	!
1440	!-- Execute alle other module actions routunes
1441	CALL module_interface_actions( 'after_integration' )
1442
1443	!
1444	!-- If Galilei transformation is used, determine the distance that the
1445	!-- model has moved so far
1446	IF ( galilei_transformation ) THEN
1447	advected_distance_x = advected_distance_x + u_gtrans * dt_3d
1448	advected_distance_y = advected_distance_y + v_gtrans * dt_3d
1449	ENDIF
1450
1451	!
1452	!-- Check, if restart is necessary (because cpu-time is expiring or
1453	!-- because it is forced by user) and set stop flag
1454	!-- This call is skipped if the remote model has already initiated a restart.
1455	IF ( .NOT. terminate_run ) CALL check_for_restart
1456
1457	!
1458	!-- Carry out statistical analysis and output at the requested output times.
1459	!-- The MOD function is used for calculating the output time counters (like
1460	!-- time_dopr) in order to regard a possible decrease of the output time
1461	!-- interval in case of restart runs
1462
1463	!
1464	!-- Set a flag indicating that so far no statistics have been created
1465	!-- for this time step
1466	flow_statistics_called = .FALSE.
1467
1468	!
1469	!-- If required, call flow_statistics for averaging in time
1470	IF ( averaging_interval_pr /= 0.0_wp .AND. &
1471	( dt_dopr - time_dopr ) <= averaging_interval_pr .AND. &
1472	time_since_reference_point >= skip_time_dopr ) THEN
1473	time_dopr_av = time_dopr_av + dt_3d
1474	IF ( time_dopr_av >= dt_averaging_input_pr ) THEN
1475	do_sum = .TRUE.
1476	time_dopr_av = MOD( time_dopr_av, MAX( dt_averaging_input_pr, dt_3d ) )
1477	ENDIF
1478	ENDIF
1479	IF ( do_sum ) CALL flow_statistics
1480
1481	!
1482	!-- Sum-up 3d-arrays for later output of time-averaged 2d/3d/masked data
1483	IF ( averaging_interval /= 0.0_wp .AND. &
1484	( dt_data_output_av - time_do_av ) <= averaging_interval .AND. &
1485	time_since_reference_point >= skip_time_data_output_av ) &
1486	THEN
1487	time_do_sla = time_do_sla + dt_3d
1488	IF ( time_do_sla >= dt_averaging_input ) THEN
1489	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1490	CALL doq_calculate
1491
1492	CALL sum_up_3d_data
1493	average_count_3d = average_count_3d + 1
1494	time_do_sla = MOD( time_do_sla, MAX( dt_averaging_input, dt_3d ) )
1495	ENDIF
1496	ENDIF
1497	!
1498	!-- Average surface data
1499	IF ( surface_output ) THEN
1500	IF ( averaging_interval_surf /= 0.0_wp &
1501	.AND. ( dt_dosurf_av - time_dosurf_av ) <= averaging_interval_surf &
1502	.AND. time_since_reference_point >= skip_time_dosurf_av ) THEN
1503	IF ( time_dosurf_av >= dt_averaging_input ) THEN
1504	CALL surface_data_output_averaging
1505	average_count_surf = average_count_surf + 1
1506	ENDIF
1507	ENDIF
1508	ENDIF
1509
1510	!
1511	!-- Calculate spectra for time averaging
1512	IF ( averaging_interval_sp /= 0.0_wp .AND. ( dt_dosp - time_dosp ) <= averaging_interval_sp&
1513	.AND. time_since_reference_point >= skip_time_dosp ) THEN
1514	time_dosp_av = time_dosp_av + dt_3d
1515	IF ( time_dosp_av >= dt_averaging_input_pr ) THEN
1516	CALL calc_spectra
1517	time_dosp_av = MOD( time_dosp_av, MAX( dt_averaging_input_pr, dt_3d ) )
1518	ENDIF
1519	ENDIF
1520
1521	!
1522	!-- Call flight module and output data
1523	IF ( virtual_flight ) THEN
1524	CALL flight_measurement
1525	CALL data_output_flight
1526	ENDIF
1527	!
1528	!-- Take virtual measurements
1529	IF ( virtual_measurement .AND. time_virtual_measurement >= dt_virtual_measurement &
1530	.AND. vm_time_start <= time_since_reference_point ) THEN
1531	CALL vm_sampling
1532	CALL vm_data_output
1533	time_virtual_measurement = MOD( time_virtual_measurement, &
1534	MAX( dt_virtual_measurement, dt_3d ) )
1535	ENDIF
1536
1537	!
1538	!-- Output wind turbine data
1539	IF ( wind_turbine .AND. time_wtm >= dt_data_output_wtm ) THEN
1540	CALL wtm_data_output
1541	time_wtm = MOD( time_wtm, MAX( dt_data_output_wtm, dt_3d ) )
1542	ENDIF
1543
1544	!
1545	!-- Profile output (ASCII) on file
1546	IF ( time_dopr_listing >= dt_dopr_listing ) THEN
1547	CALL print_1d
1548	time_dopr_listing = MOD( time_dopr_listing, MAX( dt_dopr_listing, dt_3d ) )
1549	ENDIF
1550
1551	!
1552	!-- Graphic output for PROFIL
1553	IF ( time_dopr >= dt_dopr .AND. time_since_reference_point >= skip_time_dopr ) THEN
1554	IF ( dopr_n /= 0 ) CALL data_output_profiles
1555	time_dopr = MOD( time_dopr, MAX( dt_dopr, dt_3d ) )
1556	time_dopr_av = 0.0_wp ! due to averaging (see above)
1557	ENDIF
1558
1559	!
1560	!-- Graphic output for time series
1561	IF ( time_dots >= dt_dots ) THEN
1562	CALL data_output_tseries
1563	time_dots = MOD( time_dots, MAX( dt_dots, dt_3d ) )
1564	ENDIF
1565
1566	!
1567	!-- Output of spectra (formatted for use with PROFIL), in case of no
1568	!-- time averaging, spectra has to be calculated before
1569	IF ( time_dosp >= dt_dosp .AND. time_since_reference_point >= skip_time_dosp ) THEN
1570	IF ( average_count_sp == 0 ) CALL calc_spectra
1571	CALL data_output_spectra
1572	time_dosp = MOD( time_dosp, MAX( dt_dosp, dt_3d ) )
1573	ENDIF
1574
1575	!
1576	!-- 2d-data output (cross-sections)
1577	IF ( time_do2d_xy >= dt_do2d_xy .AND. time_since_reference_point >= skip_time_do2d_xy ) THEN
1578	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1579	CALL doq_calculate
1580
1581	CALL data_output_2d( 'xy', 0 )
1582	time_do2d_xy = MOD( time_do2d_xy, MAX( dt_do2d_xy, dt_3d ) )
1583	ENDIF
1584	IF ( time_do2d_xz >= dt_do2d_xz .AND. time_since_reference_point >= skip_time_do2d_xz ) THEN
1585	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1586
1587	CALL doq_calculate
1588	CALL data_output_2d( 'xz', 0 )
1589	time_do2d_xz = MOD( time_do2d_xz, MAX( dt_do2d_xz, dt_3d ) )
1590	ENDIF
1591	IF ( time_do2d_yz >= dt_do2d_yz .AND. time_since_reference_point >= skip_time_do2d_yz ) THEN
1592	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1593	CALL doq_calculate
1594
1595	CALL data_output_2d( 'yz', 0 )
1596	time_do2d_yz = MOD( time_do2d_yz, MAX( dt_do2d_yz, dt_3d ) )
1597	ENDIF
1598
1599	!
1600	!-- 3d-data output (volume data)
1601	IF ( time_do3d >= dt_do3d .AND. time_since_reference_point >= skip_time_do3d ) THEN
1602	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1603	CALL doq_calculate
1604
1605	CALL data_output_3d( 0 )
1606	time_do3d = MOD( time_do3d, MAX( dt_do3d, dt_3d ) )
1607	ENDIF
1608
1609	!
1610	!-- Masked data output
1611	DO mid = 1, masks
1612	IF ( time_domask(mid) >= dt_domask(mid) &
1613	.AND. time_since_reference_point >= skip_time_domask(mid) ) THEN
1614	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1615	CALL doq_calculate
1616
1617	CALL data_output_mask( 0, mid )
1618	time_domask(mid) = MOD( time_domask(mid), MAX( dt_domask(mid), dt_3d ) )
1619	ENDIF
1620	ENDDO
1621
1622	!
1623	!-- Output of time-averaged 2d/3d/masked data
1624	IF ( time_do_av >= dt_data_output_av &
1625	.AND. time_since_reference_point >= skip_time_data_output_av ) THEN
1626	CALL average_3d_data
1627	!
1628	!-- Udate thermal comfort indices based on updated averaged input
1629	IF ( biometeorology .AND. thermal_comfort ) THEN
1630	CALL bio_calculate_thermal_index_maps ( .TRUE. )
1631	ENDIF
1632	CALL data_output_2d( 'xy', 1 )
1633	CALL data_output_2d( 'xz', 1 )
1634	CALL data_output_2d( 'yz', 1 )
1635	CALL data_output_3d( 1 )
1636	DO mid = 1, masks
1637	CALL data_output_mask( 1, mid )
1638	ENDDO
1639	time_do_av = MOD( time_do_av, MAX( dt_data_output_av, dt_3d ) )
1640	ENDIF
1641	!
1642	!-- Output of surface data, instantaneous and averaged data
1643	IF ( surface_output ) THEN
1644	IF ( time_dosurf >= dt_dosurf .AND. time_since_reference_point >= skip_time_dosurf ) THEN
1645	CALL surface_data_output( 0 )
1646	time_dosurf = MOD( time_dosurf, MAX( dt_dosurf, dt_3d ) )
1647	ENDIF
1648	IF ( time_dosurf_av >= dt_dosurf_av .AND. time_since_reference_point >= skip_time_dosurf_av ) THEN
1649	CALL surface_data_output( 1 )
1650	time_dosurf_av = MOD( time_dosurf_av, MAX( dt_dosurf_av, dt_3d ) )
1651	ENDIF
1652	ENDIF
1653
1654	!
1655	!-- Output of particle time series
1656	IF ( particle_advection ) THEN
1657	IF ( time_dopts >= dt_dopts .OR. &
1658	( time_since_reference_point >= particle_advection_start .AND. &
1659	first_call_lpm ) ) THEN
1660	CALL lpm_data_output_ptseries
1661	time_dopts = MOD( time_dopts, MAX( dt_dopts, dt_3d ) )
1662	ENDIF
1663	ENDIF
1664
1665	!
1666	!-- If required, set the heat flux for the next time step to a random value
1667	IF ( constant_heatflux .AND. random_heatflux ) THEN
1668	IF ( surf_def_h(0)%ns >= 1 ) THEN
1669	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1670	CALL disturb_heatflux( surf_def_h(0) )
1671	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1672	ENDIF
1673	IF ( surf_lsm_h%ns >= 1 ) THEN
1674	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1675	CALL disturb_heatflux( surf_lsm_h )
1676	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1677	ENDIF
1678	IF ( surf_usm_h%ns >= 1 ) THEN
1679	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1680	CALL disturb_heatflux( surf_usm_h )
1681	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1682	ENDIF
1683	ENDIF
1684
1685	!
1686	!-- Execute alle other module actions routunes
1687	CALL module_interface_actions( 'after_timestep' )
1688
1689	!
1690	!-- Determine size of next time step. Save timestep dt_3d because it is
1691	!-- newly calculated in routine timestep, but required further below for
1692	!-- steering the run control output interval
1693	dt_3d_old = dt_3d
1694	CALL timestep
1695
1696	#if defined( __parallel )
1697	!
1698	!-- Synchronize the timestep in case of nested run.
1699	IF ( nested_run ) THEN
1700	!
1701	!-- Synchronize by unifying the time step.
1702	!-- Global minimum of all time-steps is used for all.
1703	CALL pmci_synchronize
1704	ENDIF
1705	#endif
1706
1707	!
1708	!-- Computation and output of run control parameters.
1709	!-- This is also done whenever perturbations have been imposed
1710	IF ( time_run_control >= dt_run_control .OR. &
1711	timestep_scheme(1:5) /= 'runge' .OR. disturbance_created ) &
1712	THEN
1713	CALL run_control
1714	IF ( time_run_control >= dt_run_control ) THEN
1715	time_run_control = MOD( time_run_control, MAX( dt_run_control, dt_3d_old ) )
1716	ENDIF
1717	ENDIF
1718
1719	!
1720	!-- Output elapsed simulated time in form of a progress bar on stdout
1721	IF ( myid == 0 ) CALL output_progress_bar
1722
1723	CALL cpu_log( log_point_s(10), 'timesteps', 'stop' )
1724
1725
1726	ENDDO ! time loop
1727
1728	#if defined( _OPENACC )
1729	CALL exit_surface_arrays
1730	#endif
1731	!$ACC END DATA
1732	!$ACC END DATA
1733	!$ACC END DATA
1734	!$ACC END DATA
1735	!$ACC END DATA
1736	!$ACC END DATA
1737	!$ACC END DATA
1738	!$ACC END DATA
1739
1740	#if defined( __parallel )
1741	!
1742	!-- Vertical nesting: Deallocate variables initialized for vertical nesting
1743	IF ( vnest_init ) CALL vnest_deallocate
1744	#endif
1745
1746	IF ( myid == 0 ) CALL finish_progress_bar
1747
1748	CALL location_message( 'atmosphere (and/or ocean) time-stepping', 'finished' )
1749
1750	END SUBROUTINE time_integration

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