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source: palm/trunk/SOURCE/time_integration.f90 @ 4564

Last change on this file since 4564 was 4564, checked in by raasch, 4 years ago
Vertical nesting method of Huq et al. (2019) removed
Property svn:keywords set to `Id`
File size: 70.7 KB

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

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