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source: palm/trunk/SOURCE/time_integration.f90 @ 4690

Last change on this file since 4690 was 4671, checked in by pavelkrc, 4 years ago
Radiative transfer model RTM version 4.1
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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 4671 2020-09-09 20:27:58Z suehring $
27	! Implementation of downward facing USM and LSM surfaces
28	!
29	! 4669 2020-09-09 13:43:47Z pavelkrc
30	! - Fix missing call of radiation after spinup
31	! - Fix calculation of force_radiation_call
32	! - Fix calculation of radiation times
33	!
34	! 4668 2020-09-09 13:00:16Z pavelkrc
35	! Improve debug messages during timestepping
36	!
37	! 4581 2020-06-29 08:49:58Z suehring
38	! Omit explicit pressure forcing via geostrophic wind components in case of
39	! mesoscale nesting.
40	!
41	! 4578 2020-06-25 15:43:32Z gronemeier
42	! bugfix: removed unused variables
43	!
44	! 4573 2020-06-24 13:08:47Z oliver.maas
45	! calculate pt(0) incrementally by using dt_3d instead of calculating it absolutely
46	! by using time_since_reference_point, because time_since_reference_point is set
47	! to zero for initializing_actions = 'cyclic_fill'
48	!
49	! 4565 2020-06-15 08:30:38Z oliver.maas
50	! added new surface temperature forcing method for bc_pt_b = 'dirichlet':
51	! surface temperature pt(0) can be linearly increased by pt_surface_heating_rate (in K/h)
52	!
53	! 4564 2020-06-12 14:03:36Z raasch
54	! Vertical nesting method of Huq et al. (2019) removed
55	!
56	! 4521 2020-05-06 11:39:49Z schwenkel
57	! Rename variable
58	!
59	! 4511 2020-04-30 12:20:40Z raasch
60	! chemistry decycling replaced by explicit setting of lateral boundary conditions
61	!
62	! 4508 2020-04-24 13:32:20Z raasch
63	! salsa decycling replaced by explicit setting of lateral boundary conditions
64	!
65	! 4502 2020-04-17 16:14:16Z schwenkel
66	! Implementation of ice microphysics
67	!
68	! 4472 2020-03-24 12:21:00Z Giersch
69	! OPENACC COPYIN directive for ddx and ddy added
70	!
71	! 4466 2020-03-20 16:14:41Z suehring
72	! Add advection fluxes to ACC copyin
73	!
74	! 4457 2020-03-11 14:20:43Z raasch
75	! use statement for exchange horiz added
76	!
77	! 4444 2020-03-05 15:59:50Z raasch
78	! bugfix: cpp-directives for serial mode added
79	!
80	! 4420 2020-02-24 14:13:56Z maronga
81	! Added output control for wind turbine model
82	!
83	! 4403 2020-02-12 13:08:46Z banzhafs
84	! Allowing both existing and on-demand emission read modes
85	!
86	! 4360 2020-01-07 11:25:50Z suehring
87	! Bugfix, hour_call_emis uninitialized at first call of time_integration
88	!
89	! 4346 2019-12-18 11:55:56Z motisi
90	! Introduction of wall_flags_total_0, which currently sets bits based on static
91	! topography information used in wall_flags_static_0
92	!
93	! 4329 2019-12-10 15:46:36Z motisi
94	! Renamed wall_flags_0 to wall_flags_static_0
95	!
96	! 4281 2019-10-29 15:15:39Z schwenkel
97	! Moved boundary conditions to module interface
98	!
99	! 4276 2019-10-28 16:03:29Z schwenkel
100	! Further modularization of lpm code components
101	!
102	! 4275 2019-10-28 15:34:55Z schwenkel
103	! Move call oft lpm to the end of intermediate timestep loop
104	!
105	! 4268 2019-10-17 11:29:38Z schwenkel
106	! Removing module specific boundary conditions an put them into their modules
107	!
108	! 4227 2019-09-10 18:04:34Z gronemeier
109	! implement new palm_date_time_mod
110	!
111	! 4226 2019-09-10 17:03:24Z suehring
112	! Changes in interface for the offline nesting
113	!
114	! 4182 2019-08-22 15:20:23Z scharf
115	! Corrected "Former revisions" section
116	!
117	! 4170 2019-08-19 17:12:31Z gronemeier
118	! copy diss, diss_p, tdiss_m to GPU
119	!
120	! 4144 2019-08-06 09:11:47Z raasch
121	! relational operators .EQ., .NE., etc. replaced by ==, /=, etc.
122	!
123	! 4126 2019-07-30 11:09:11Z gronemeier
124	! renamed routine to calculate uv exposure
125	!
126	! 4111 2019-07-22 18:16:57Z suehring
127	! advc_flags_1 / advc_flags_2 renamed to advc_flags_m / advc_flags_s
128	!
129	! 4069 2019-07-01 14:05:51Z Giersch
130	! Masked output running index mid has been introduced as a local variable to
131	! avoid runtime error (Loop variable has been modified) in time_integration
132	!
133	! 4064 2019-07-01 05:33:33Z gronemeier
134	! Moved call to radiation module out of intermediate time loop
135	!
136	! 4048 2019-06-21 21:00:21Z knoop
137	! Moved production_e_init call into turbulence_closure_mod
138	!
139	! 4047 2019-06-21 18:58:09Z knoop
140	! Added remainings of swap_timelevel upon its dissolution
141	!
142	! 4043 2019-06-18 16:59:00Z schwenkel
143	! Further LPM modularization
144	!
145	! 4039 2019-06-18 10:32:41Z suehring
146	! Rename subroutines in module for diagnostic quantities
147	!
148	! 4029 2019-06-14 14:04:35Z raasch
149	! exchange of ghost points and boundary conditions separated for chemical species and SALSA module,
150	! bugfix: decycling of chemistry species after nesting data transfer
151	!
152	! 4022 2019-06-12 11:52:39Z suehring
153	! Call synthetic turbulence generator at last RK3 substep right after boundary
154	! conditions are updated in offline nesting in order to assure that
155	! perturbations are always imposed
156	!
157	! 4017 2019-06-06 12:16:46Z schwenkel
158	! Mass (volume) flux correction included to ensure global mass conservation for child domains.
159	!
160	! 3994 2019-05-22 18:08:09Z suehring
161	! output of turbulence intensity added
162	!
163	! 3988 2019-05-22 11:32:37Z kanani
164	! Implement steerable output interval for virtual measurements
165	!
166	! 3968 2019-05-13 11:04:01Z suehring
167	! replace nspec_out with n_matched_vars
168	!
169	! 3929 2019-04-24 12:52:08Z banzhafs
170	! Reverse changes back from revision 3878: use chem_boundary_conds instead of
171	! chem_boundary_conds_decycle
172	!
173	!
174	! 3885 2019-04-11 11:29:34Z kanani
175	! Changes related to global restructuring of location messages and introduction
176	! of additional debug messages
177	!
178	! 3879 2019-04-08 20:25:23Z knoop
179	! Moved wtm_forces to module_interface_actions
180	!
181	! 3872 2019-04-08 15:03:06Z knoop
182	! Modifications made for salsa:
183	! - Call salsa_emission_update at each time step but do the checks within
184	! salsa_emission_update (i.e. skip_time_do_salsa >= time_since_reference_point
185	! and next_aero_emission_update <= time_since_reference_point ).
186	! - Renamed nbins --> nbins_aerosol, ncc_tot --> ncomponents_mass and
187	! ngast --> ngases_salsa and loop indices b, c and sg to ib, ic and ig
188	! - Apply nesting for salsa variables
189	! - Removed cpu_log calls speciffic for salsa.
190	!
191	! 3833 2019-03-28 15:04:04Z forkel
192	! added USE chem_gasphase_mod, replaced nspec by nspec since fixed compounds are not integrated
193	!
194	! 3820 2019-03-27 11:53:41Z forkel
195	! renamed do_emiss to emissions_anthropogenic (ecc)
196	!
197	!
198	! 3774 2019-03-04 10:52:49Z moh.hefny
199	! rephrase if statement to avoid unallocated array in case of
200	! nesting_offline is false (crashing during debug mode)
201	!
202	! 3761 2019-02-25 15:31:42Z raasch $
203	! module section re-formatted and openacc required variables moved to separate section,
204	! re-formatting to 100 char line width
205	!
206	! 3745 2019-02-15 18:57:56Z suehring
207	! Call indoor model after first timestep
208	!
209	! 3744 2019-02-15 18:38:58Z suehring
210	! - Moved call of bio_calculate_thermal_index_maps from biometeorology module to
211	! time_integration to make sure averaged input is updated before calculating.
212	!
213	! 3739 2019-02-13 08:05:17Z dom_dwd_user
214	! Removed everything related to "time_bio_results" as this is never used.
215	!
216	! 3724 2019-02-06 16:28:23Z kanani
217	! Correct double-used log_point_s unit
218	!
219	! 3719 2019-02-06 13:10:18Z kanani
220	! - removed wind_turbine cpu measurement, since same time is measured inside
221	! wtm_forces subroutine as special measures
222	! - moved the numerous vnest cpulog to special measures
223	! - extended radiation cpulog over entire radiation part,
224	! moved radiation_interactions cpulog to special measures
225	! - moved some cpu_log calls to this routine for better overview
226	!
227	! 3705 2019-01-29 19:56:39Z suehring
228	! Data output for virtual measurements added
229	!
230	! 3704 2019-01-29 19:51:41Z suehring
231	! Rename subroutines for surface-data output
232	!
233	! 3647 2019-01-02 14:10:44Z kanani
234	! Bugfix: add time_since_reference_point to IF clause for data_output calls
235	! (otherwise skip_time_* values don't come into affect with dt_do* = 0.0).
236	! Clean up indoor_model and biometeorology model call.
237	!
238	! Revision 1.1 1997/08/11 06:19:04 raasch
239	! Initial revision
240	!
241	!
242	! Description:
243	! ------------
244	!> Integration in time of the model equations, statistical analysis and graphic
245	!> output
246	!------------------------------------------------------------------------------!
247	SUBROUTINE time_integration
248
249
250	USE advec_ws, &
251	ONLY: ws_statistics
252
253	USE arrays_3d, &
254	ONLY: diss, diss_p, dzu, e_p, nc_p, ni_p, nr_p, prho, pt, pt_p, pt_init, q, qc_p, qr_p, &
255	q_init, q_p, qi_p, ref_state, rho_ocean, sa_p, s_p, tend, u, u_p, v, vpt, v_p, w_p
256
257	#if defined( __parallel ) && ! defined( _OPENACC )
258	USE arrays_3d, &
259	ONLY: e, nc, ni, nr, qc, qi, qr, s, w
260	#endif
261
262	USE biometeorology_mod, &
263	ONLY: bio_calculate_thermal_index_maps, thermal_comfort, bio_calculate_uv_exposure, &
264	uv_exposure
265
266	USE bulk_cloud_model_mod, &
267	ONLY: bulk_cloud_model, calc_liquid_water_content, collision_turbulence, &
268	microphysics_ice_phase, microphysics_morrison, microphysics_seifert
269
270	USE calc_mean_profile_mod, &
271	ONLY: calc_mean_profile
272
273	USE chem_emissions_mod, &
274	ONLY: chem_emissions_setup, chem_emissions_update_on_demand
275
276	USE chem_gasphase_mod, &
277	ONLY: nvar
278
279	USE chem_modules, &
280	ONLY: bc_cs_t_val, chem_species, communicator_chem, emissions_anthropogenic, &
281	emiss_read_legacy_mode, n_matched_vars
282
283	USE control_parameters, &
284	ONLY: advected_distance_x, advected_distance_y, air_chemistry, average_count_3d, &
285	averaging_interval, averaging_interval_pr, bc_lr_cyc, bc_ns_cyc, bc_pt_t_val, &
286	bc_q_t_val, biometeorology, call_psolver_at_all_substeps, child_domain, &
287	constant_flux_layer, constant_heatflux, create_disturbances, &
288	dopr_n, constant_diffusion, coupling_mode, coupling_start_time, &
289	current_timestep_number, debug_output_timestep, debug_string, &
290	disturbance_created, disturbance_energy_limit, dist_range, &
291	do_sum, dt_3d, dt_averaging_input, dt_averaging_input_pr, dt_coupling, &
292	dt_data_output_av, dt_disturb, dt_do2d_xy, dt_do2d_xz, dt_do2d_yz, dt_do3d, &
293	dt_domask,dt_dopts, dt_dopr, dt_dopr_listing, dt_dots, dt_run_control, &
294	end_time, first_call_lpm, first_call_mas, galilei_transformation, humidity, &
295	indoor_model, intermediate_timestep_count, intermediate_timestep_count_max, &
296	land_surface, large_scale_forcing, loop_optimization, lsf_surf, lsf_vert, masks, &
297	multi_agent_system_end, multi_agent_system_start, nesting_offline, neutral, &
298	nr_timesteps_this_run, nudging, ocean_mode, passive_scalar, pt_reference, &
299	pt_slope_offset, pt_surface_heating_rate, &
300	random_heatflux, rans_tke_e, run_coupled, salsa, &
301	simulated_time, simulated_time_chr, skip_time_do2d_xy, skip_time_do2d_xz, &
302	skip_time_do2d_yz, skip_time_do3d, skip_time_domask, skip_time_dopr, &
303	skip_time_data_output_av, sloping_surface, stop_dt, surface_output, &
304	terminate_coupled, terminate_run, timestep_scheme, time_coupling, time_do2d_xy, &
305	time_do2d_xz, time_do2d_yz, time_do3d, time_domask, time_dopr, time_dopr_av, &
306	time_dopr_listing, time_dopts, time_dosp, time_dosp_av, time_dots, time_do_av, &
307	time_do_sla, time_disturb, time_run_control, time_since_reference_point, &
308	timestep_count, turbulent_inflow, turbulent_outflow, urban_surface, &
309	use_initial_profile_as_reference, use_single_reference_value, u_gtrans, v_gtrans, &
310	virtual_flight, virtual_measurement, ws_scheme_mom, ws_scheme_sca
311
312	#if defined( __parallel )
313	USE control_parameters, &
314	ONLY: rans_mode
315	#endif
316
317	USE cpulog, &
318	ONLY: cpu_log, log_point, log_point_s
319
320	USE diagnostic_output_quantities_mod, &
321	ONLY: doq_calculate, &
322	timestep_number_at_prev_calc
323
324	USE exchange_horiz_mod, &
325	ONLY: exchange_horiz
326
327	USE flight_mod, &
328	ONLY: flight_measurement
329
330	USE grid_variables, &
331	ONLY: ddx, ddy
332
333	USE indices, &
334	ONLY: nbgp, nx, nxl, nxlg, nxr, nxrg, nzb, nzt
335
336	USE indoor_model_mod, &
337	ONLY: dt_indoor, im_main_heatcool, time_indoor
338
339	USE interfaces
340
341	USE kinds
342
343	USE land_surface_model_mod, &
344	ONLY: lsm_boundary_condition, lsm_energy_balance, skip_time_do_lsm
345
346	USE lagrangian_particle_model_mod, &
347	ONLY: lpm_data_output_ptseries
348
349	USE lsf_nudging_mod, &
350	ONLY: calc_tnudge, ls_forcing_surf, ls_forcing_vert, nudge_ref
351
352	USE module_interface, &
353	ONLY: module_interface_actions, module_interface_swap_timelevel, &
354	module_interface_boundary_conditions
355
356	USE multi_agent_system_mod, &
357	ONLY: agents_active, multi_agent_system
358
359	USE nesting_offl_mod, &
360	ONLY: nesting_offl_bc, &
361	nesting_offl_input, &
362	nesting_offl_interpolation_factor, &
363	nesting_offl_mass_conservation
364
365	USE netcdf_data_input_mod, &
366	ONLY: chem_emis, chem_emis_att
367
368	USE ocean_mod, &
369	ONLY: prho_reference
370
371	USE palm_date_time_mod, &
372	ONLY: get_date_time
373
374	USE particle_attributes, &
375	ONLY: particle_advection, particle_advection_start, use_sgs_for_particles, wang_kernel
376
377	USE pegrid
378
379	#if defined( __parallel )
380	USE pmc_interface, &
381	ONLY: nested_run, nesting_mode, pmci_boundary_conds, pmci_datatrans, pmci_synchronize, &
382	pmci_ensure_nest_mass_conservation, pmci_ensure_nest_mass_conservation_vertical, &
383	pmci_set_swaplevel
384	#endif
385
386	USE progress_bar, &
387	ONLY: finish_progress_bar, output_progress_bar
388
389	USE prognostic_equations_mod, &
390	ONLY: prognostic_equations_cache, prognostic_equations_vector
391
392	USE radiation_model_mod, &
393	ONLY: dt_radiation, force_radiation_call, radiation, radiation_control, &
394	radiation_interaction, radiation_interactions, skip_time_do_radiation, time_radiation
395
396	USE salsa_mod, &
397	ONLY: aerosol_number, aerosol_mass, bc_am_t_val, bc_an_t_val, bc_gt_t_val, &
398	communicator_salsa, nbins_aerosol, ncomponents_mass, ngases_salsa, &
399	salsa_boundary_conditions, salsa_emission_update, salsa_gas, salsa_gases_from_chem, &
400	skip_time_do_salsa
401
402	USE spectra_mod, &
403	ONLY: average_count_sp, averaging_interval_sp, calc_spectra, dt_dosp, skip_time_dosp
404
405	USE statistics, &
406	ONLY: flow_statistics_called, hom, pr_palm, sums_ls_l
407
408
409	USE surface_layer_fluxes_mod, &
410	ONLY: surface_layer_fluxes
411
412	USE surface_data_output_mod, &
413	ONLY: average_count_surf, averaging_interval_surf, dt_dosurf, dt_dosurf_av, &
414	surface_data_output, surface_data_output_averaging, skip_time_dosurf, &
415	skip_time_dosurf_av, time_dosurf, time_dosurf_av
416
417	USE surface_mod, &
418	ONLY: surf_def_h, surf_lsm_h, surf_usm_h
419
420	USE synthetic_turbulence_generator_mod, &
421	ONLY: dt_stg_call, dt_stg_adjust, parametrize_inflow_turbulence, stg_adjust, stg_main, &
422	time_stg_adjust, time_stg_call, use_syn_turb_gen
423
424	USE turbulence_closure_mod, &
425	ONLY: tcm_diffusivities
426
427	USE urban_surface_mod, &
428	ONLY: usm_boundary_condition, &
429	usm_energy_balance
430
431	USE virtual_measurement_mod, &
432	ONLY: dt_virtual_measurement, &
433	time_virtual_measurement, &
434	vm_data_output, &
435	vm_sampling, &
436	vm_time_start
437
438
439	USE wind_turbine_model_mod, &
440	ONLY: dt_data_output_wtm, time_wtm, wind_turbine, wtm_data_output
441
442	#if defined( _OPENACC )
443	USE arrays_3d, &
444	ONLY: d, dd2zu, ddzu, ddzw, &
445	diss_l_u, &
446	diss_l_v, &
447	diss_l_w, &
448	diss_s_u, &
449	diss_s_v, &
450	diss_s_w, &
451	drho_air, drho_air_zw, dzw, e, &
452	flux_l_u, &
453	flux_l_v, &
454	flux_l_w, &
455	flux_s_u, &
456	flux_s_v, &
457	flux_s_w, &
458	heatflux_output_conversion, &
459	kh, km, momentumflux_output_conversion, nc, ni, nr, p, ptdf_x, ptdf_y, qc, qi, qr, rdf, &
460	rdf_sc, rho_air, rho_air_zw, s, tdiss_m, te_m, tpt_m, tu_m, tv_m, tw_m, ug, u_init, &
461	u_stokes_zu, vg, v_init, v_stokes_zu, w, zu
462
463	USE control_parameters, &
464	ONLY: tsc
465
466	USE indices, &
467	ONLY: advc_flags_m, advc_flags_s, nyn, nyng, nys, nysg, nz, nzb_max, wall_flags_total_0
468
469	USE statistics, &
470	ONLY: rmask, statistic_regions, sums_l, sums_l_l, sums_us2_ws_l, &
471	sums_wsus_ws_l, sums_vs2_ws_l, sums_wsvs_ws_l, sums_ws2_ws_l, sums_wspts_ws_l, &
472	sums_wsqs_ws_l, sums_wssas_ws_l, sums_wsqcs_ws_l, sums_wsqrs_ws_l, sums_wsncs_ws_l, &
473	sums_wsnrs_ws_l, sums_wsss_ws_l, weight_substep, sums_salsa_ws_l, sums_wsqis_ws_l, &
474	sums_wsnis_ws_l
475
476	USE surface_mod, &
477	ONLY: bc_h, enter_surface_arrays, exit_surface_arrays
478	#endif
479
480
481	IMPLICIT NONE
482
483	CHARACTER (LEN=9) :: time_to_string !<
484
485	INTEGER(iwp) :: hour !< hour of current time
486	INTEGER(iwp) :: hour_call_emis = -1 !< last hour where emission was called
487	INTEGER(iwp) :: ib !< index for aerosol size bins
488	INTEGER(iwp) :: ic !< index for aerosol mass bins
489	INTEGER(iwp) :: icc !< additional index for aerosol mass bins
490	INTEGER(iwp) :: ig !< index for salsa gases
491	INTEGER(iwp) :: mid !< masked output running index
492	INTEGER(iwp) :: n !< loop counter for chemistry species
493
494	REAL(wp) :: dt_3d_old !< temporary storage of timestep to be used for
495	!< steering of run control output interval
496	REAL(wp) :: time_since_reference_point_save !< original value of
497	!< time_since_reference_point
498
499
500	!
501	!-- Copy data from arrays_3d
502	!$ACC DATA &
503	!$ACC COPY(d(nzb+1:nzt,nys:nyn,nxl:nxr)) &
504	!$ACC COPY(diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
505	!$ACC COPY(e(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
506	!$ACC COPY(u(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
507	!$ACC COPY(v(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
508	!$ACC COPY(w(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
509	!$ACC COPY(kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
510	!$ACC COPY(km(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
511	!$ACC COPY(p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
512	!$ACC COPY(pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
513
514	!$ACC DATA &
515	!$ACC COPYIN(diss_l_u(0:nz+1,nys:nyn,0), flux_l_u(0:nz+1,nys:nyn,0)) &
516	!$ACC COPYIN(diss_l_v(0:nz+1,nys:nyn,0), flux_l_v(0:nz+1,nys:nyn,0)) &
517	!$ACC COPYIN(diss_l_w(0:nz+1,nys:nyn,0), flux_l_w(0:nz+1,nys:nyn,0)) &
518	!$ACC COPYIN(diss_s_u(0:nz+1,0), flux_s_u(0:nz+1,0)) &
519	!$ACC COPYIN(diss_s_v(0:nz+1,0), flux_s_v(0:nz+1,0)) &
520	!$ACC COPYIN(diss_s_w(0:nz+1,0), flux_s_w(0:nz+1,0)) &
521	!$ACC COPY(diss_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
522	!$ACC COPY(e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
523	!$ACC COPY(u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
524	!$ACC COPY(v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
525	!$ACC COPY(w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
526	!$ACC COPY(pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
527	!$ACC COPY(tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
528	!$ACC COPY(tdiss_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
529	!$ACC COPY(te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
530	!$ACC COPY(tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
531	!$ACC COPY(tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
532	!$ACC COPY(tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
533	!$ACC COPY(tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
534
535	!$ACC DATA &
536	!$ACC COPYIN(rho_air(nzb:nzt+1), drho_air(nzb:nzt+1)) &
537	!$ACC COPYIN(rho_air_zw(nzb:nzt+1), drho_air_zw(nzb:nzt+1)) &
538	!$ACC COPYIN(zu(nzb:nzt+1)) &
539	!$ACC COPYIN(dzu(1:nzt+1), dzw(1:nzt+1)) &
540	!$ACC COPYIN(ddzu(1:nzt+1), dd2zu(1:nzt)) &
541	!$ACC COPYIN(ddzw(1:nzt+1)) &
542	!$ACC COPYIN(heatflux_output_conversion(nzb:nzt+1)) &
543	!$ACC COPYIN(momentumflux_output_conversion(nzb:nzt+1)) &
544	!$ACC COPYIN(rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt)) &
545	!$ACC COPYIN(ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng)) &
546	!$ACC COPYIN(ref_state(0:nz+1)) &
547	!$ACC COPYIN(u_init(0:nz+1), v_init(0:nz+1)) &
548	!$ACC COPYIN(u_stokes_zu(nzb:nzt+1), v_stokes_zu(nzb:nzt+1)) &
549	!$ACC COPYIN(pt_init(0:nz+1)) &
550	!$ACC COPYIN(ug(0:nz+1), vg(0:nz+1))
551
552	!
553	!-- Copy data from control_parameters
554	!$ACC DATA &
555	!$ACC COPYIN(tsc(1:5))
556
557	!
558	!-- Copy data from grid_variables
559	!$ACC DATA &
560	!$ACC COPYIN(ddx, ddy)
561
562	!
563	!-- Copy data from indices
564	!$ACC DATA &
565	!$ACC COPYIN(advc_flags_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
566	!$ACC COPYIN(advc_flags_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
567	!$ACC COPYIN(wall_flags_total_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
568
569	!
570	!-- Copy data from surface_mod
571	!$ACC DATA &
572	!$ACC COPYIN(bc_h(0:1)) &
573	!$ACC COPYIN(bc_h(0)%i(1:bc_h(0)%ns)) &
574	!$ACC COPYIN(bc_h(0)%j(1:bc_h(0)%ns)) &
575	!$ACC COPYIN(bc_h(0)%k(1:bc_h(0)%ns)) &
576	!$ACC COPYIN(bc_h(1)%i(1:bc_h(1)%ns)) &
577	!$ACC COPYIN(bc_h(1)%j(1:bc_h(1)%ns)) &
578	!$ACC COPYIN(bc_h(1)%k(1:bc_h(1)%ns))
579
580	!
581	!-- Copy data from statistics
582	!$ACC DATA &
583	!$ACC COPYIN(hom(0:nz+1,1:2,1:4,0)) &
584	!$ACC COPYIN(rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions)) &
585	!$ACC COPYIN(weight_substep(1:intermediate_timestep_count_max)) &
586	!$ACC COPY(sums_l(nzb:nzt+1,1:pr_palm,0)) &
587	!$ACC COPY(sums_l_l(nzb:nzt+1,0:statistic_regions,0)) &
588	!$ACC COPY(sums_us2_ws_l(nzb:nzt+1,0)) &
589	!$ACC COPY(sums_wsus_ws_l(nzb:nzt+1,0)) &
590	!$ACC COPY(sums_vs2_ws_l(nzb:nzt+1,0)) &
591	!$ACC COPY(sums_wsvs_ws_l(nzb:nzt+1,0)) &
592	!$ACC COPY(sums_ws2_ws_l(nzb:nzt+1,0)) &
593	!$ACC COPY(sums_wspts_ws_l(nzb:nzt+1,0)) &
594	!$ACC COPY(sums_wssas_ws_l(nzb:nzt+1,0)) &
595	!$ACC COPY(sums_wsqs_ws_l(nzb:nzt+1,0)) &
596	!$ACC COPY(sums_wsqcs_ws_l(nzb:nzt+1,0)) &
597	!$ACC COPY(sums_wsqis_ws_l(nzb:nzt+1,0)) &
598	!$ACC COPY(sums_wsqrs_ws_l(nzb:nzt+1,0)) &
599	!$ACC COPY(sums_wsncs_ws_l(nzb:nzt+1,0)) &
600	!$ACC COPY(sums_wsnis_ws_l(nzb:nzt+1,0)) &
601	!$ACC COPY(sums_wsnrs_ws_l(nzb:nzt+1,0)) &
602	!$ACC COPY(sums_wsss_ws_l(nzb:nzt+1,0)) &
603	!$ACC COPY(sums_salsa_ws_l(nzb:nzt+1,0))
604
605	!
606	!-- Next statement is to avoid compiler warnings about unused variables. Please
607	!-- remove in case that you are using them. ddx and ddy need to be defined in
608	!-- time_integration because of ACC COPYIN directive.
609	ddx = ddx
610	ddy = ddy
611
612	#if defined( _OPENACC )
613	CALL enter_surface_arrays
614	#endif
615
616	!
617	!-- At beginning determine the first time step
618	CALL timestep
619
620	#if defined( __parallel )
621	!
622	!-- Synchronize the timestep in case of nested run.
623	IF ( nested_run ) THEN
624	!
625	!-- Synchronization by unifying the time step.
626	!-- Global minimum of all time-steps is used for all.
627	CALL pmci_synchronize
628	ENDIF
629	#endif
630
631	!
632	!-- Determine and print out the run control quantities before the first time
633	!-- step of this run. For the initial run, some statistics (e.g. divergence)
634	!-- need to be determined first --> CALL flow_statistics at the beginning of
635	!-- run_control
636	CALL run_control
637	!
638	!-- Data exchange between coupled models in case that a call has been omitted
639	!-- at the end of the previous run of a job chain.
640	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled ) THEN
641	!
642	!-- In case of model termination initiated by the local model the coupler
643	!-- must not be called because this would again cause an MPI hang.
644	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
645	CALL surface_coupler
646	time_coupling = time_coupling - dt_coupling
647	ENDDO
648	IF (time_coupling == 0.0_wp .AND. time_since_reference_point < dt_coupling ) THEN
649	time_coupling = time_since_reference_point
650	ENDIF
651	ENDIF
652
653	CALL location_message( 'atmosphere (and/or ocean) time-stepping', 'start' )
654
655	!
656	!-- Start of the time loop
657	DO WHILE ( simulated_time < end_time .AND. .NOT. stop_dt .AND. .NOT. terminate_run )
658
659	CALL cpu_log( log_point_s(10), 'timesteps', 'start' )
660
661	IF ( debug_output_timestep ) THEN
662	WRITE( debug_string, * ) 'time_integration', simulated_time
663	CALL debug_message( debug_string, 'start' )
664	ENDIF
665
666	!
667	!-- Determine ug, vg and w_subs in dependence on data from external file
668	!-- LSF_DATA
669	IF ( large_scale_forcing .AND. lsf_vert ) THEN
670	CALL ls_forcing_vert ( simulated_time )
671	sums_ls_l = 0.0_wp
672	ENDIF
673
674	!
675	!-- Set pt_init and q_init to the current profiles taken from
676	!-- NUDGING_DATA
677	IF ( nudging ) THEN
678	CALL nudge_ref ( simulated_time )
679	!
680	!-- Store temperature gradient at the top boundary for possible Neumann
681	!-- boundary condition
682	bc_pt_t_val = ( pt_init(nzt+1) - pt_init(nzt) ) / dzu(nzt+1)
683	bc_q_t_val = ( q_init(nzt+1) - q_init(nzt) ) / dzu(nzt+1)
684	IF ( air_chemistry ) THEN
685	DO n = 1, nvar
686	bc_cs_t_val = ( chem_species(n)%conc_pr_init(nzt+1) &
687	- chem_species(n)%conc_pr_init(nzt) ) &
688	/ dzu(nzt+1)
689	ENDDO
690	ENDIF
691	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
692	DO ib = 1, nbins_aerosol
693	bc_an_t_val = ( aerosol_number(ib)%init(nzt+1) - aerosol_number(ib)%init(nzt) ) / &
694	dzu(nzt+1)
695	DO ic = 1, ncomponents_mass
696	icc = ( ic - 1 ) * nbins_aerosol + ib
697	bc_am_t_val = ( aerosol_mass(icc)%init(nzt+1) - aerosol_mass(icc)%init(nzt) ) /&
698	dzu(nzt+1)
699	ENDDO
700	ENDDO
701	IF ( .NOT. salsa_gases_from_chem ) THEN
702	DO ig = 1, ngases_salsa
703	bc_gt_t_val = ( salsa_gas(ig)%init(nzt+1) - salsa_gas(ig)%init(nzt) ) / &
704	dzu(nzt+1)
705	ENDDO
706	ENDIF
707	ENDIF
708	ENDIF
709	!
710	!-- Input of boundary data.
711	IF ( nesting_offline ) CALL nesting_offl_input
712	!
713	!-- Execute all other module actions routines
714	CALL module_interface_actions( 'before_timestep' )
715
716	!
717	!-- Start of intermediate step loop
718	intermediate_timestep_count = 0
719	DO WHILE ( intermediate_timestep_count < intermediate_timestep_count_max )
720
721	intermediate_timestep_count = intermediate_timestep_count + 1
722
723	!
724	!-- Set the steering factors for the prognostic equations which depend
725	!-- on the timestep scheme
726	CALL timestep_scheme_steering
727
728	!
729	!-- Calculate those variables needed in the tendency terms which need
730	!-- global communication
731	IF ( .NOT. use_single_reference_value .AND. .NOT. use_initial_profile_as_reference ) &
732	THEN
733	!
734	!-- Horizontally averaged profiles to be used as reference state in
735	!-- buoyancy terms (WARNING: only the respective last call of
736	!-- calc_mean_profile defines the reference state!)
737	IF ( .NOT. neutral ) THEN
738	CALL calc_mean_profile( pt, 4 )
739	ref_state(:) = hom(:,1,4,0) ! this is used in the buoyancy term
740	ENDIF
741	IF ( ocean_mode ) THEN
742	CALL calc_mean_profile( rho_ocean, 64 )
743	ref_state(:) = hom(:,1,64,0)
744	ENDIF
745	IF ( humidity ) THEN
746	CALL calc_mean_profile( vpt, 44 )
747	ref_state(:) = hom(:,1,44,0)
748	ENDIF
749	!
750	!-- Assure that ref_state does not become zero at any level
751	!-- ( might be the case if a vertical level is completely occupied
752	!-- with topography ).
753	ref_state = MERGE( MAXVAL(ref_state), ref_state, ref_state == 0.0_wp )
754	ENDIF
755
756	IF ( ( ws_scheme_mom .OR. ws_scheme_sca ) .AND. intermediate_timestep_count == 1 ) &
757	THEN
758	CALL ws_statistics
759	ENDIF
760	!
761	!-- In case of nudging calculate current nudging time scale and horizontal
762	!-- means of u, v, pt and q
763	IF ( nudging ) THEN
764	CALL calc_tnudge( simulated_time )
765	CALL calc_mean_profile( u, 1 )
766	CALL calc_mean_profile( v, 2 )
767	CALL calc_mean_profile( pt, 4 )
768	CALL calc_mean_profile( q, 41 )
769	ENDIF
770	!
771	!-- Execute all other module actions routunes
772	CALL module_interface_actions( 'before_prognostic_equations' )
773	!
774	!-- Solve the prognostic equations. A fast cache optimized version with
775	!-- only one single loop is used in case of Piascek-Williams advection
776	!-- scheme. NEC vector machines use a different version, because
777	!-- in the other versions a good vectorization is prohibited due to
778	!-- inlining problems.
779	IF ( loop_optimization == 'cache' ) THEN
780	CALL prognostic_equations_cache
781	ELSEIF ( loop_optimization == 'vector' ) THEN
782	CALL prognostic_equations_vector
783	ENDIF
784
785	!
786	!-- Movement of agents in multi agent system
787	IF ( agents_active .AND. time_since_reference_point >= multi_agent_system_start .AND. &
788	time_since_reference_point <= multi_agent_system_end .AND. &
789	intermediate_timestep_count == 1 ) &
790	THEN
791	CALL multi_agent_system
792	first_call_mas = .FALSE.
793	ENDIF
794
795	!
796	!-- Exchange of ghost points (lateral boundary conditions)
797	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'start' )
798
799	CALL exchange_horiz( u_p, nbgp )
800	CALL exchange_horiz( v_p, nbgp )
801	CALL exchange_horiz( w_p, nbgp )
802	CALL exchange_horiz( pt_p, nbgp )
803	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
804	IF ( rans_tke_e .OR. wang_kernel .OR. collision_turbulence &
805	.OR. use_sgs_for_particles ) THEN
806	IF ( rans_tke_e ) THEN
807	CALL exchange_horiz( diss_p, nbgp )
808	ELSE
809	CALL exchange_horiz( diss, nbgp )
810	ENDIF
811	ENDIF
812	IF ( ocean_mode ) THEN
813	CALL exchange_horiz( sa_p, nbgp )
814	CALL exchange_horiz( rho_ocean, nbgp )
815	CALL exchange_horiz( prho, nbgp )
816	ENDIF
817	IF ( humidity ) THEN
818	CALL exchange_horiz( q_p, nbgp )
819	IF ( bulk_cloud_model .AND. microphysics_morrison ) THEN
820	CALL exchange_horiz( qc_p, nbgp )
821	CALL exchange_horiz( nc_p, nbgp )
822	ENDIF
823	IF ( bulk_cloud_model .AND. microphysics_seifert ) THEN
824	CALL exchange_horiz( qr_p, nbgp )
825	CALL exchange_horiz( nr_p, nbgp )
826	ENDIF
827	IF ( bulk_cloud_model .AND. microphysics_ice_phase ) THEN
828	CALL exchange_horiz( qi_p, nbgp )
829	CALL exchange_horiz( ni_p, nbgp )
830	ENDIF
831	ENDIF
832	IF ( passive_scalar ) CALL exchange_horiz( s_p, nbgp )
833	IF ( air_chemistry ) THEN
834	DO n = 1, nvar
835	CALL exchange_horiz( chem_species(n)%conc_p, nbgp, &
836	alternative_communicator = communicator_chem )
837	ENDDO
838	ENDIF
839
840	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
841	DO ib = 1, nbins_aerosol
842	CALL exchange_horiz( aerosol_number(ib)%conc_p, nbgp, &
843	alternative_communicator = communicator_salsa )
844	DO ic = 1, ncomponents_mass
845	icc = ( ic - 1 ) * nbins_aerosol + ib
846	CALL exchange_horiz( aerosol_mass(icc)%conc_p, nbgp, &
847	alternative_communicator = communicator_salsa )
848	ENDDO
849	ENDDO
850	IF ( .NOT. salsa_gases_from_chem ) THEN
851	DO ig = 1, ngases_salsa
852	CALL exchange_horiz( salsa_gas(ig)%conc_p, nbgp, &
853	alternative_communicator = communicator_salsa )
854	ENDDO
855	ENDIF
856	ENDIF
857
858	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'stop' )
859
860	!
861	!-- Boundary conditions for the prognostic quantities (except of the
862	!-- velocities at the outflow in case of a non-cyclic lateral wall) and
863	!-- boundary conditions for module-specific variables
864	CALL module_interface_boundary_conditions
865
866	!
867	!-- Incrementing timestep counter
868	timestep_count = timestep_count + 1
869
870	CALL cpu_log( log_point(28), 'swap_timelevel', 'start' )
871	!
872	!-- Set the swap level for all modules
873	CALL module_interface_swap_timelevel( MOD( timestep_count, 2) )
874
875	#if defined( __parallel )
876	!
877	!-- Set the swap level for steering the pmc data transfer
878	IF ( nested_run ) CALL pmci_set_swaplevel( MOD( timestep_count, 2) + 1 ) !> @todo: why the +1 ?
879	#endif
880
881	CALL cpu_log( log_point(28), 'swap_timelevel', 'stop' )
882
883	#if defined( __parallel )
884	IF ( nested_run ) THEN
885
886	CALL cpu_log( log_point(60), 'nesting', 'start' )
887	!
888	!-- Domain nesting. The data transfer subroutines pmci_parent_datatrans
889	!-- and pmci_child_datatrans are called inside the wrapper
890	!-- subroutine pmci_datatrans according to the control parameters
891	!-- nesting_mode and nesting_datatransfer_mode.
892	!-- TO_DO: why is nesting_mode given as a parameter here?
893	CALL pmci_datatrans( nesting_mode )
894
895	IF ( TRIM( nesting_mode ) == 'two-way' .OR. nesting_mode == 'vertical' ) THEN
896
897	CALL cpu_log( log_point_s(92), 'exchange-horiz-nest', 'start' )
898	!
899	!-- Exchange_horiz is needed for all parent-domains after the
900	!-- anterpolation
901	CALL exchange_horiz( u, nbgp )
902	CALL exchange_horiz( v, nbgp )
903	CALL exchange_horiz( w, nbgp )
904	IF ( .NOT. neutral ) CALL exchange_horiz( pt, nbgp )
905
906	IF ( humidity ) THEN
907
908	CALL exchange_horiz( q, nbgp )
909
910	IF ( bulk_cloud_model .AND. microphysics_morrison ) THEN
911	CALL exchange_horiz( qc, nbgp )
912	CALL exchange_horiz( nc, nbgp )
913	ENDIF
914	IF ( bulk_cloud_model .AND. microphysics_seifert ) THEN
915	CALL exchange_horiz( qr, nbgp )
916	CALL exchange_horiz( nr, nbgp )
917	ENDIF
918	IF ( bulk_cloud_model .AND. microphysics_ice_phase ) THEN
919	CALL exchange_horiz( qi, nbgp )
920	CALL exchange_horiz( ni, nbgp )
921	ENDIF
922
923	ENDIF
924
925	IF ( passive_scalar ) CALL exchange_horiz( s, nbgp )
926
927	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e, nbgp )
928
929	IF ( .NOT. constant_diffusion .AND. rans_mode .AND. rans_tke_e ) THEN
930	CALL exchange_horiz( diss, nbgp )
931	ENDIF
932
933	IF ( air_chemistry ) THEN
934	DO n = 1, nvar
935	CALL exchange_horiz( chem_species(n)%conc, nbgp, &
936	alternative_communicator = communicator_chem )
937	ENDDO
938	ENDIF
939
940	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
941	DO ib = 1, nbins_aerosol
942	CALL exchange_horiz( aerosol_number(ib)%conc, nbgp, &
943	alternative_communicator = communicator_salsa )
944	DO ic = 1, ncomponents_mass
945	icc = ( ic - 1 ) * nbins_aerosol + ib
946	CALL exchange_horiz( aerosol_mass(icc)%conc, nbgp, &
947	alternative_communicator = communicator_salsa )
948	ENDDO
949	ENDDO
950	IF ( .NOT. salsa_gases_from_chem ) THEN
951	DO ig = 1, ngases_salsa
952	CALL exchange_horiz( salsa_gas(ig)%conc, nbgp, &
953	alternative_communicator = communicator_salsa )
954	ENDDO
955	ENDIF
956	ENDIF
957	CALL cpu_log( log_point_s(92), 'exchange-horiz-nest', 'stop' )
958
959	ENDIF
960
961	!
962	!-- Set boundary conditions again after interpolation and anterpolation.
963	CALL pmci_boundary_conds
964
965	CALL cpu_log( log_point(60), 'nesting', 'stop' )
966
967	ENDIF
968	#endif
969
970	!
971	!-- Temperature offset must be imposed at cyclic boundaries in x-direction
972	!-- when a sloping surface is used
973	IF ( sloping_surface ) THEN
974	IF ( nxl == 0 ) pt(:,:,nxlg:nxl-1) = pt(:,:,nxlg:nxl-1) - pt_slope_offset
975	IF ( nxr == nx ) pt(:,:,nxr+1:nxrg) = pt(:,:,nxr+1:nxrg) + pt_slope_offset
976	ENDIF
977
978	!
979	!-- Increase temperature pt(0) according to pt_surface_heating_rate (convert from K/h to K/s)
980	IF ( pt_surface_heating_rate /= 0.0_wp .AND. intermediate_timestep_count == 1 ) THEN
981	pt(0,:,:) = pt(0,:,:) + dt_3d * pt_surface_heating_rate / 3600.0_wp
982	ENDIF
983
984	!
985	!-- Impose a turbulent inflow using the recycling method
986	IF ( turbulent_inflow ) CALL inflow_turbulence
987
988	!
989	!-- Set values at outflow boundary using the special outflow condition
990	IF ( turbulent_outflow ) CALL outflow_turbulence
991
992	!
993	!-- Impose a random perturbation on the horizontal velocity field
994	IF ( create_disturbances .AND. ( call_psolver_at_all_substeps .AND. &
995	intermediate_timestep_count == intermediate_timestep_count_max ) &
996	.OR. ( .NOT. call_psolver_at_all_substeps .AND. intermediate_timestep_count == 1 ) ) &
997	THEN
998	time_disturb = time_disturb + dt_3d
999	IF ( time_disturb >= dt_disturb ) THEN
1000	IF ( disturbance_energy_limit /= 0.0_wp .AND. &
1001	hom(nzb+5,1,pr_palm,0) < disturbance_energy_limit ) THEN
1002	CALL disturb_field( 'u', tend, u )
1003	CALL disturb_field( 'v', tend, v )
1004	ELSEIF ( ( .NOT. bc_lr_cyc .OR. .NOT. bc_ns_cyc ) &
1005	.AND. .NOT. child_domain .AND. .NOT. nesting_offline ) &
1006	THEN
1007	!
1008	!-- Runs with a non-cyclic lateral wall need perturbations
1009	!-- near the inflow throughout the whole simulation
1010	dist_range = 1
1011	CALL disturb_field( 'u', tend, u )
1012	CALL disturb_field( 'v', tend, v )
1013	dist_range = 0
1014	ENDIF
1015	time_disturb = time_disturb - dt_disturb
1016	ENDIF
1017	ENDIF
1018
1019	!
1020	!-- Map forcing data derived from larger scale model onto domain
1021	!-- boundaries. Further, update geostrophic wind components.
1022	IF ( nesting_offline .AND. intermediate_timestep_count == &
1023	intermediate_timestep_count_max ) THEN
1024	!-- Determine interpolation factor before boundary conditions and geostrophic wind
1025	!-- is updated.
1026	CALL nesting_offl_interpolation_factor
1027	CALL nesting_offl_bc
1028	! CALL nesting_offl_geostrophic_wind
1029	ENDIF
1030	!
1031	!-- Impose a turbulent inflow using synthetic generated turbulence.
1032	IF ( use_syn_turb_gen .AND. &
1033	intermediate_timestep_count == intermediate_timestep_count_max ) THEN
1034	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'start' )
1035	CALL stg_main
1036	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'stop' )
1037	ENDIF
1038	!
1039	!-- Ensure mass conservation. This need to be done after imposing
1040	!-- synthetic turbulence and top boundary condition for pressure is set to
1041	!-- Neumann conditions.
1042	!-- Is this also required in case of Dirichlet?
1043	IF ( nesting_offline ) CALL nesting_offl_mass_conservation
1044	!
1045	!-- Reduce the velocity divergence via the equation for perturbation
1046	!-- pressure.
1047	IF ( intermediate_timestep_count == 1 .OR. call_psolver_at_all_substeps ) THEN
1048
1049	#if defined( __parallel )
1050	!
1051	!-- Mass (volume) flux correction to ensure global mass conservation for child domains.
1052	IF ( child_domain ) THEN
1053	IF ( nesting_mode == 'vertical' ) THEN
1054	CALL pmci_ensure_nest_mass_conservation_vertical
1055	ELSE
1056	CALL pmci_ensure_nest_mass_conservation
1057	ENDIF
1058	ENDIF
1059	#endif
1060	CALL pres
1061
1062	ENDIF
1063	!
1064	!-- Particle transport/physics with the Lagrangian particle model
1065	!-- (only once during intermediate steps, because it uses an Euler-step)
1066	!-- ### particle model should be moved before prognostic_equations, in order
1067	!-- to regard droplet interactions directly
1068
1069	CALL module_interface_actions( 'after_pressure_solver' )
1070	!
1071	!-- Interaction of droplets with temperature and mixing ratio.
1072	!-- Droplet condensation and evaporation is calculated within
1073	!-- advec_particles.
1074	!
1075	!-- If required, compute liquid water content
1076	IF ( bulk_cloud_model ) THEN
1077	CALL calc_liquid_water_content
1078	ENDIF
1079	!
1080	!-- If required, compute virtual potential temperature
1081	IF ( humidity ) THEN
1082	CALL compute_vpt
1083	ENDIF
1084
1085	!
1086	!-- Compute the diffusion quantities
1087	IF ( .NOT. constant_diffusion ) THEN
1088
1089	!
1090	!-- Determine surface fluxes shf and qsws and surface values
1091	!-- pt_surface and q_surface in dependence on data from external
1092	!-- file LSF_DATA respectively
1093	IF ( ( large_scale_forcing .AND. lsf_surf ) .AND. &
1094	intermediate_timestep_count == intermediate_timestep_count_max ) &
1095	THEN
1096	CALL ls_forcing_surf( simulated_time )
1097	ENDIF
1098
1099	!
1100	!-- First the vertical (and horizontal) fluxes in the surface
1101	!-- (constant flux) layer are computed
1102	IF ( constant_flux_layer ) THEN
1103	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'start' )
1104	CALL surface_layer_fluxes
1105	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'stop' )
1106	ENDIF
1107	!
1108	!-- If required, solve the energy balance for the surface and run soil
1109	!-- model. Call for horizontal as well as vertical surfaces
1110	IF ( land_surface .AND. time_since_reference_point >= skip_time_do_lsm) THEN
1111
1112	CALL cpu_log( log_point(54), 'land_surface', 'start' )
1113	CALL lsm_energy_balance( .FALSE. )
1114
1115	!
1116	!-- At the end, set boundary conditons for potential temperature
1117	!-- and humidity after running the land-surface model. This
1118	!-- might be important for the nesting, where arrays are transfered.
1119	CALL lsm_boundary_condition
1120
1121
1122	CALL cpu_log( log_point(54), 'land_surface', 'stop' )
1123	ENDIF
1124	!
1125	!-- If required, solve the energy balance for urban surfaces and run
1126	!-- the material heat model
1127	IF (urban_surface) THEN
1128	CALL cpu_log( log_point(74), 'urban_surface', 'start' )
1129	CALL usm_energy_balance( .FALSE. )
1130
1131	!
1132	!-- At the end, set boundary conditons for potential temperature
1133	!-- and humidity after running the urban-surface model. This
1134	!-- might be important for the nesting, where arrays are transfered.
1135	CALL usm_boundary_condition
1136
1137	CALL cpu_log( log_point(74), 'urban_surface', 'stop' )
1138	ENDIF
1139	!
1140	!-- Compute the diffusion coefficients
1141	CALL cpu_log( log_point(17), 'diffusivities', 'start' )
1142	IF ( .NOT. humidity ) THEN
1143	IF ( ocean_mode ) THEN
1144	CALL tcm_diffusivities( prho, prho_reference )
1145	ELSE
1146	CALL tcm_diffusivities( pt, pt_reference )
1147	ENDIF
1148	ELSE
1149	CALL tcm_diffusivities( vpt, pt_reference )
1150	ENDIF
1151	CALL cpu_log( log_point(17), 'diffusivities', 'stop' )
1152
1153	ENDIF
1154
1155	ENDDO ! Intermediate step loop
1156
1157	!
1158	!-- Will be used at some point by flow_statistics.
1159	!$ACC UPDATE &
1160	!$ACC HOST(sums_l_l(nzb:nzt+1,0:statistic_regions,0)) &
1161	!$ACC HOST(sums_us2_ws_l(nzb:nzt+1,0)) &
1162	!$ACC HOST(sums_wsus_ws_l(nzb:nzt+1,0)) &
1163	!$ACC HOST(sums_vs2_ws_l(nzb:nzt+1,0)) &
1164	!$ACC HOST(sums_wsvs_ws_l(nzb:nzt+1,0)) &
1165	!$ACC HOST(sums_ws2_ws_l(nzb:nzt+1,0)) &
1166	!$ACC HOST(sums_wspts_ws_l(nzb:nzt+1,0)) &
1167	!$ACC HOST(sums_wssas_ws_l(nzb:nzt+1,0)) &
1168	!$ACC HOST(sums_wsqs_ws_l(nzb:nzt+1,0)) &
1169	!$ACC HOST(sums_wsqcs_ws_l(nzb:nzt+1,0)) &
1170	!$ACC HOST(sums_wsqis_ws_l(nzb:nzt+1,0)) &
1171	!$ACC HOST(sums_wsqrs_ws_l(nzb:nzt+1,0)) &
1172	!$ACC HOST(sums_wsncs_ws_l(nzb:nzt+1,0)) &
1173	!$ACC HOST(sums_wsnis_ws_l(nzb:nzt+1,0)) &
1174	!$ACC HOST(sums_wsnrs_ws_l(nzb:nzt+1,0)) &
1175	!$ACC HOST(sums_wsss_ws_l(nzb:nzt+1,0)) &
1176	!$ACC HOST(sums_salsa_ws_l(nzb:nzt+1,0))
1177
1178	!
1179	!-- If required, calculate radiative fluxes and heating rates
1180	IF ( radiation .AND. time_since_reference_point >= skip_time_do_radiation ) THEN
1181
1182	time_radiation = time_radiation + dt_3d
1183
1184	IF ( time_radiation >= dt_radiation .OR. force_radiation_call ) THEN
1185
1186	CALL cpu_log( log_point(50), 'radiation', 'start' )
1187
1188	IF ( time_radiation >= dt_radiation ) THEN
1189	time_radiation = time_radiation - dt_radiation
1190	ENDIF
1191
1192	!
1193	!-- Adjust the current time to the time step of the radiation model.
1194	!-- Needed since radiation is pre-calculated and stored only on apparent
1195	!-- solar positions
1196	time_since_reference_point_save = time_since_reference_point
1197	time_since_reference_point = time_since_reference_point - &
1198	MODULO(time_since_reference_point, dt_radiation)
1199
1200	CALL radiation_control
1201
1202	IF ( ( urban_surface .OR. land_surface ) .AND. radiation_interactions ) THEN
1203	CALL cpu_log( log_point_s(46), 'radiation_interaction', 'start' )
1204	CALL radiation_interaction
1205	CALL cpu_log( log_point_s(46), 'radiation_interaction', 'stop' )
1206	ENDIF
1207
1208	!
1209	!-- Return the current time to its original value
1210	time_since_reference_point = time_since_reference_point_save
1211	!
1212	!-- Reset forcing of radiation call
1213	force_radiation_call = .FALSE.
1214
1215	CALL cpu_log( log_point(50), 'radiation', 'stop' )
1216
1217	ENDIF
1218	ENDIF
1219
1220
1221	!
1222	!-- 20200203 (ECC)
1223	!-- allows for emission update mode in legacy mode as well as on-demand mode
1224	!-- note that under on-demand mode emission update is no longer restricted to
1225	!-- an hourly frequency, but whenever the simulation time corresponds to an
1226	!-- inrement in emission timestamp value
1227
1228	!
1229	!-- If required, consider chemical emissions
1230
1231	IF ( air_chemistry .AND. emissions_anthropogenic ) THEN
1232
1233	IF ( emiss_read_legacy_mode ) THEN
1234	!
1235	!-- get hourly index and updates emission data when the hour is passed
1236
1237	CALL get_date_time( time_since_reference_point, hour=hour )
1238
1239	IF ( hour_call_emis /= hour ) THEN
1240
1241	CALL chem_emissions_setup( chem_emis_att, chem_emis, n_matched_vars )
1242	hour_call_emis = hour
1243
1244	ENDIF
1245
1246	ELSE
1247
1248	CALL chem_emissions_update_on_demand
1249
1250	ENDIF
1251
1252	ENDIF
1253
1254
1255	!
1256	!-- If required, consider aerosol emissions for the salsa model
1257	IF ( salsa ) THEN
1258	!
1259	!-- Call emission routine to update emissions if needed
1260	CALL salsa_emission_update
1261
1262	ENDIF
1263	!
1264	!-- If required, calculate indoor temperature, waste heat, heat flux
1265	!-- through wall, etc.
1266	!-- dt_indoor steers the frequency of the indoor model calculations.
1267	!-- Note, at first timestep indoor model is called, in order to provide
1268	!-- a waste heat flux.
1269	IF ( indoor_model ) THEN
1270
1271	time_indoor = time_indoor + dt_3d
1272
1273	IF ( time_indoor >= dt_indoor .OR. current_timestep_number == 0 ) THEN
1274
1275	time_indoor = time_indoor - dt_indoor
1276
1277	CALL cpu_log( log_point(76), 'indoor_model', 'start' )
1278	CALL im_main_heatcool
1279	CALL cpu_log( log_point(76), 'indoor_model', 'stop' )
1280
1281	ENDIF
1282	ENDIF
1283	!
1284	!-- Increase simulation time and output times
1285	nr_timesteps_this_run = nr_timesteps_this_run + 1
1286	current_timestep_number = current_timestep_number + 1
1287	simulated_time = simulated_time + dt_3d
1288	time_since_reference_point = simulated_time - coupling_start_time
1289	simulated_time_chr = time_to_string( time_since_reference_point )
1290
1291
1292	IF ( time_since_reference_point >= skip_time_data_output_av ) THEN
1293	time_do_av = time_do_av + dt_3d
1294	ENDIF
1295	IF ( time_since_reference_point >= skip_time_do2d_xy ) THEN
1296	time_do2d_xy = time_do2d_xy + dt_3d
1297	ENDIF
1298	IF ( time_since_reference_point >= skip_time_do2d_xz ) THEN
1299	time_do2d_xz = time_do2d_xz + dt_3d
1300	ENDIF
1301	IF ( time_since_reference_point >= skip_time_do2d_yz ) THEN
1302	time_do2d_yz = time_do2d_yz + dt_3d
1303	ENDIF
1304	IF ( time_since_reference_point >= skip_time_do3d ) THEN
1305	time_do3d = time_do3d + dt_3d
1306	ENDIF
1307	DO mid = 1, masks
1308	IF ( time_since_reference_point >= skip_time_domask(mid) ) THEN
1309	time_domask(mid)= time_domask(mid) + dt_3d
1310	ENDIF
1311	ENDDO
1312	IF ( time_since_reference_point >= skip_time_dosp ) THEN
1313	time_dosp = time_dosp + dt_3d
1314	ENDIF
1315	time_dots = time_dots + dt_3d
1316	IF ( .NOT. first_call_lpm ) THEN
1317	time_dopts = time_dopts + dt_3d
1318	ENDIF
1319	IF ( time_since_reference_point >= skip_time_dopr ) THEN
1320	time_dopr = time_dopr + dt_3d
1321	ENDIF
1322	time_dopr_listing = time_dopr_listing + dt_3d
1323	time_run_control = time_run_control + dt_3d
1324	!
1325	!-- Increment time-counter for surface output
1326	IF ( surface_output ) THEN
1327	IF ( time_since_reference_point >= skip_time_dosurf ) THEN
1328	time_dosurf = time_dosurf + dt_3d
1329	ENDIF
1330	IF ( time_since_reference_point >= skip_time_dosurf_av ) THEN
1331	time_dosurf_av = time_dosurf_av + dt_3d
1332	ENDIF
1333	ENDIF
1334	!
1335	!-- Increment time-counter for virtual measurements
1336	IF ( virtual_measurement .AND. vm_time_start <= time_since_reference_point ) THEN
1337	time_virtual_measurement = time_virtual_measurement + dt_3d
1338	ENDIF
1339
1340	!
1341	!-- Increment time-counter for wind turbine data output
1342	IF ( wind_turbine ) THEN
1343	time_wtm = time_wtm + dt_3d
1344	ENDIF
1345
1346	!
1347	!-- In case of synthetic turbulence generation and parametrized turbulence
1348	!-- information, update the time counter and if required, adjust the
1349	!-- STG to new atmospheric conditions.
1350	IF ( use_syn_turb_gen ) THEN
1351	IF ( parametrize_inflow_turbulence ) THEN
1352	time_stg_adjust = time_stg_adjust + dt_3d
1353	IF ( time_stg_adjust >= dt_stg_adjust ) THEN
1354	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'start' )
1355	CALL stg_adjust
1356	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'stop' )
1357	ENDIF
1358	ENDIF
1359	time_stg_call = time_stg_call + dt_3d
1360	ENDIF
1361
1362	!
1363	!-- Data exchange between coupled models
1364	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled ) THEN
1365	time_coupling = time_coupling + dt_3d
1366
1367	!
1368	!-- In case of model termination initiated by the local model
1369	!-- (terminate_coupled > 0), the coupler must be skipped because it would
1370	!-- cause an MPI intercomminucation hang.
1371	!-- If necessary, the coupler will be called at the beginning of the
1372	!-- next restart run.
1373	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
1374	CALL surface_coupler
1375	time_coupling = time_coupling - dt_coupling
1376	ENDDO
1377	ENDIF
1378
1379	!
1380	!-- Biometeorology calculation of stationary thermal indices
1381	!-- Todo (kanani): biometeorology needs own time_... treatment.
1382	!-- It might be that time_do2d_xy differs from time_do3d,
1383	!-- and then we might get trouble with the biomet output,
1384	!-- because we can have 2d and/or 3d biomet output!!
1385	IF ( biometeorology &
1386	.AND. ( ( time_do3d >= dt_do3d .AND. time_since_reference_point >= skip_time_do3d ) &
1387	.OR. &
1388	( time_do2d_xy >= dt_do2d_xy .AND. time_since_reference_point >= skip_time_do2d_xy ) &
1389	) ) THEN
1390	!
1391	!-- If required, do thermal comfort calculations
1392	IF ( thermal_comfort ) THEN
1393	CALL bio_calculate_thermal_index_maps ( .FALSE. )
1394	ENDIF
1395	!
1396	!-- If required, do UV exposure calculations
1397	IF ( uv_exposure ) THEN
1398	CALL bio_calculate_uv_exposure
1399	ENDIF
1400	ENDIF
1401
1402	!
1403	!-- Execute alle other module actions routunes
1404	CALL module_interface_actions( 'after_integration' )
1405
1406	!
1407	!-- If Galilei transformation is used, determine the distance that the
1408	!-- model has moved so far
1409	IF ( galilei_transformation ) THEN
1410	advected_distance_x = advected_distance_x + u_gtrans * dt_3d
1411	advected_distance_y = advected_distance_y + v_gtrans * dt_3d
1412	ENDIF
1413
1414	!
1415	!-- Check, if restart is necessary (because cpu-time is expiring or
1416	!-- because it is forced by user) and set stop flag
1417	!-- This call is skipped if the remote model has already initiated a restart.
1418	IF ( .NOT. terminate_run ) CALL check_for_restart
1419
1420	!
1421	!-- Carry out statistical analysis and output at the requested output times.
1422	!-- The MOD function is used for calculating the output time counters (like
1423	!-- time_dopr) in order to regard a possible decrease of the output time
1424	!-- interval in case of restart runs
1425
1426	!
1427	!-- Set a flag indicating that so far no statistics have been created
1428	!-- for this time step
1429	flow_statistics_called = .FALSE.
1430
1431	!
1432	!-- If required, call flow_statistics for averaging in time
1433	IF ( averaging_interval_pr /= 0.0_wp .AND. &
1434	( dt_dopr - time_dopr ) <= averaging_interval_pr .AND. &
1435	time_since_reference_point >= skip_time_dopr ) THEN
1436	time_dopr_av = time_dopr_av + dt_3d
1437	IF ( time_dopr_av >= dt_averaging_input_pr ) THEN
1438	do_sum = .TRUE.
1439	time_dopr_av = MOD( time_dopr_av, MAX( dt_averaging_input_pr, dt_3d ) )
1440	ENDIF
1441	ENDIF
1442	IF ( do_sum ) CALL flow_statistics
1443
1444	!
1445	!-- Sum-up 3d-arrays for later output of time-averaged 2d/3d/masked data
1446	IF ( averaging_interval /= 0.0_wp .AND. &
1447	( dt_data_output_av - time_do_av ) <= averaging_interval .AND. &
1448	time_since_reference_point >= skip_time_data_output_av ) &
1449	THEN
1450	time_do_sla = time_do_sla + dt_3d
1451	IF ( time_do_sla >= dt_averaging_input ) THEN
1452	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1453	CALL doq_calculate
1454
1455	CALL sum_up_3d_data
1456	average_count_3d = average_count_3d + 1
1457	time_do_sla = MOD( time_do_sla, MAX( dt_averaging_input, dt_3d ) )
1458	ENDIF
1459	ENDIF
1460	!
1461	!-- Average surface data
1462	IF ( surface_output ) THEN
1463	IF ( averaging_interval_surf /= 0.0_wp &
1464	.AND. ( dt_dosurf_av - time_dosurf_av ) <= averaging_interval_surf &
1465	.AND. time_since_reference_point >= skip_time_dosurf_av ) THEN
1466	IF ( time_dosurf_av >= dt_averaging_input ) THEN
1467	CALL surface_data_output_averaging
1468	average_count_surf = average_count_surf + 1
1469	ENDIF
1470	ENDIF
1471	ENDIF
1472
1473	!
1474	!-- Calculate spectra for time averaging
1475	IF ( averaging_interval_sp /= 0.0_wp .AND. ( dt_dosp - time_dosp ) <= averaging_interval_sp&
1476	.AND. time_since_reference_point >= skip_time_dosp ) THEN
1477	time_dosp_av = time_dosp_av + dt_3d
1478	IF ( time_dosp_av >= dt_averaging_input_pr ) THEN
1479	CALL calc_spectra
1480	time_dosp_av = MOD( time_dosp_av, MAX( dt_averaging_input_pr, dt_3d ) )
1481	ENDIF
1482	ENDIF
1483
1484	!
1485	!-- Call flight module and output data
1486	IF ( virtual_flight ) THEN
1487	CALL flight_measurement
1488	CALL data_output_flight
1489	ENDIF
1490	!
1491	!-- Take virtual measurements
1492	IF ( virtual_measurement .AND. time_virtual_measurement >= dt_virtual_measurement &
1493	.AND. vm_time_start <= time_since_reference_point ) THEN
1494	CALL vm_sampling
1495	CALL vm_data_output
1496	time_virtual_measurement = MOD( time_virtual_measurement, &
1497	MAX( dt_virtual_measurement, dt_3d ) )
1498	ENDIF
1499
1500	!
1501	!-- Output wind turbine data
1502	IF ( wind_turbine .AND. time_wtm >= dt_data_output_wtm ) THEN
1503	CALL wtm_data_output
1504	time_wtm = MOD( time_wtm, MAX( dt_data_output_wtm, dt_3d ) )
1505	ENDIF
1506
1507	!
1508	!-- Profile output (ASCII) on file
1509	IF ( time_dopr_listing >= dt_dopr_listing ) THEN
1510	CALL print_1d
1511	time_dopr_listing = MOD( time_dopr_listing, MAX( dt_dopr_listing, dt_3d ) )
1512	ENDIF
1513
1514	!
1515	!-- Graphic output for PROFIL
1516	IF ( time_dopr >= dt_dopr .AND. time_since_reference_point >= skip_time_dopr ) THEN
1517	IF ( dopr_n /= 0 ) CALL data_output_profiles
1518	time_dopr = MOD( time_dopr, MAX( dt_dopr, dt_3d ) )
1519	time_dopr_av = 0.0_wp ! due to averaging (see above)
1520	ENDIF
1521
1522	!
1523	!-- Graphic output for time series
1524	IF ( time_dots >= dt_dots ) THEN
1525	CALL data_output_tseries
1526	time_dots = MOD( time_dots, MAX( dt_dots, dt_3d ) )
1527	ENDIF
1528
1529	!
1530	!-- Output of spectra (formatted for use with PROFIL), in case of no
1531	!-- time averaging, spectra has to be calculated before
1532	IF ( time_dosp >= dt_dosp .AND. time_since_reference_point >= skip_time_dosp ) THEN
1533	IF ( average_count_sp == 0 ) CALL calc_spectra
1534	CALL data_output_spectra
1535	time_dosp = MOD( time_dosp, MAX( dt_dosp, dt_3d ) )
1536	ENDIF
1537
1538	!
1539	!-- 2d-data output (cross-sections)
1540	IF ( time_do2d_xy >= dt_do2d_xy .AND. time_since_reference_point >= skip_time_do2d_xy ) THEN
1541	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1542	CALL doq_calculate
1543
1544	CALL data_output_2d( 'xy', 0 )
1545	time_do2d_xy = MOD( time_do2d_xy, MAX( dt_do2d_xy, dt_3d ) )
1546	ENDIF
1547	IF ( time_do2d_xz >= dt_do2d_xz .AND. time_since_reference_point >= skip_time_do2d_xz ) THEN
1548	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1549
1550	CALL doq_calculate
1551	CALL data_output_2d( 'xz', 0 )
1552	time_do2d_xz = MOD( time_do2d_xz, MAX( dt_do2d_xz, dt_3d ) )
1553	ENDIF
1554	IF ( time_do2d_yz >= dt_do2d_yz .AND. time_since_reference_point >= skip_time_do2d_yz ) THEN
1555	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1556	CALL doq_calculate
1557
1558	CALL data_output_2d( 'yz', 0 )
1559	time_do2d_yz = MOD( time_do2d_yz, MAX( dt_do2d_yz, dt_3d ) )
1560	ENDIF
1561
1562	!
1563	!-- 3d-data output (volume data)
1564	IF ( time_do3d >= dt_do3d .AND. time_since_reference_point >= skip_time_do3d ) THEN
1565	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1566	CALL doq_calculate
1567
1568	CALL data_output_3d( 0 )
1569	time_do3d = MOD( time_do3d, MAX( dt_do3d, dt_3d ) )
1570	ENDIF
1571
1572	!
1573	!-- Masked data output
1574	DO mid = 1, masks
1575	IF ( time_domask(mid) >= dt_domask(mid) &
1576	.AND. time_since_reference_point >= skip_time_domask(mid) ) THEN
1577	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1578	CALL doq_calculate
1579
1580	CALL data_output_mask( 0, mid )
1581	time_domask(mid) = MOD( time_domask(mid), MAX( dt_domask(mid), dt_3d ) )
1582	ENDIF
1583	ENDDO
1584
1585	!
1586	!-- Output of time-averaged 2d/3d/masked data
1587	IF ( time_do_av >= dt_data_output_av &
1588	.AND. time_since_reference_point >= skip_time_data_output_av ) THEN
1589	CALL average_3d_data
1590	!
1591	!-- Udate thermal comfort indices based on updated averaged input
1592	IF ( biometeorology .AND. thermal_comfort ) THEN
1593	CALL bio_calculate_thermal_index_maps ( .TRUE. )
1594	ENDIF
1595	CALL data_output_2d( 'xy', 1 )
1596	CALL data_output_2d( 'xz', 1 )
1597	CALL data_output_2d( 'yz', 1 )
1598	CALL data_output_3d( 1 )
1599	DO mid = 1, masks
1600	CALL data_output_mask( 1, mid )
1601	ENDDO
1602	time_do_av = MOD( time_do_av, MAX( dt_data_output_av, dt_3d ) )
1603	ENDIF
1604	!
1605	!-- Output of surface data, instantaneous and averaged data
1606	IF ( surface_output ) THEN
1607	IF ( time_dosurf >= dt_dosurf .AND. time_since_reference_point >= skip_time_dosurf ) THEN
1608	CALL surface_data_output( 0 )
1609	time_dosurf = MOD( time_dosurf, MAX( dt_dosurf, dt_3d ) )
1610	ENDIF
1611	IF ( time_dosurf_av >= dt_dosurf_av .AND. time_since_reference_point >= skip_time_dosurf_av ) THEN
1612	CALL surface_data_output( 1 )
1613	time_dosurf_av = MOD( time_dosurf_av, MAX( dt_dosurf_av, dt_3d ) )
1614	ENDIF
1615	ENDIF
1616
1617	!
1618	!-- Output of particle time series
1619	IF ( particle_advection ) THEN
1620	IF ( time_dopts >= dt_dopts .OR. &
1621	( time_since_reference_point >= particle_advection_start .AND. &
1622	first_call_lpm ) ) THEN
1623	CALL lpm_data_output_ptseries
1624	time_dopts = MOD( time_dopts, MAX( dt_dopts, dt_3d ) )
1625	ENDIF
1626	ENDIF
1627
1628	!
1629	!-- If required, set the heat flux for the next time step to a random value
1630	IF ( constant_heatflux .AND. random_heatflux ) THEN
1631	IF ( surf_def_h(0)%ns >= 1 ) THEN
1632	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1633	CALL disturb_heatflux( surf_def_h(0) )
1634	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1635	ENDIF
1636	IF ( surf_lsm_h(0)%ns >= 1 ) THEN
1637	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1638	CALL disturb_heatflux( surf_lsm_h(0) )
1639	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1640	ENDIF
1641	IF ( surf_usm_h(0)%ns >= 1 ) THEN
1642	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1643	CALL disturb_heatflux( surf_usm_h(0) )
1644	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1645	ENDIF
1646	ENDIF
1647
1648	!
1649	!-- Execute alle other module actions routunes
1650	CALL module_interface_actions( 'after_timestep' )
1651
1652	!
1653	!-- Determine size of next time step. Save timestep dt_3d because it is
1654	!-- newly calculated in routine timestep, but required further below for
1655	!-- steering the run control output interval
1656	dt_3d_old = dt_3d
1657	CALL timestep
1658
1659	#if defined( __parallel )
1660	!
1661	!-- Synchronize the timestep in case of nested run.
1662	IF ( nested_run ) THEN
1663	!
1664	!-- Synchronize by unifying the time step.
1665	!-- Global minimum of all time-steps is used for all.
1666	CALL pmci_synchronize
1667	ENDIF
1668	#endif
1669
1670	!
1671	!-- Computation and output of run control parameters.
1672	!-- This is also done whenever perturbations have been imposed
1673	IF ( time_run_control >= dt_run_control .OR. &
1674	timestep_scheme(1:5) /= 'runge' .OR. disturbance_created ) &
1675	THEN
1676	CALL run_control
1677	IF ( time_run_control >= dt_run_control ) THEN
1678	time_run_control = MOD( time_run_control, MAX( dt_run_control, dt_3d_old ) )
1679	ENDIF
1680	ENDIF
1681
1682	!
1683	!-- Output elapsed simulated time in form of a progress bar on stdout
1684	IF ( myid == 0 ) CALL output_progress_bar
1685
1686	IF ( debug_output_timestep ) THEN
1687	WRITE( debug_string, * ) 'time_integration', simulated_time
1688	CALL debug_message( debug_string, 'end' )
1689	ENDIF
1690
1691	CALL cpu_log( log_point_s(10), 'timesteps', 'stop' )
1692
1693
1694	ENDDO ! time loop
1695
1696	#if defined( _OPENACC )
1697	CALL exit_surface_arrays
1698	#endif
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	!$ACC END DATA
1707
1708	IF ( myid == 0 ) CALL finish_progress_bar
1709
1710	CALL location_message( 'atmosphere (and/or ocean) time-stepping', 'finished' )
1711
1712	END SUBROUTINE time_integration

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