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source: palm/trunk/SOURCE/time_integration.f90 @ 4500

Last change on this file since 4500 was 4472, checked in by Giersch, 5 years ago
Profile output of the Kolmogorov length scale added
Property svn:keywords set to `Id`
File size: 72.9 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 4472 2020-03-24 12:21:00Z suehring $
27	! OPENACC COPYIN directive for ddx and ddy added
28	!
29	! 4466 2020-03-20 16:14:41Z suehring
30	! Add advection fluxes to ACC copyin
31	!
32	! 4457 2020-03-11 14:20:43Z raasch
33	! use statement for exchange horiz added
34	!
35	! 4444 2020-03-05 15:59:50Z raasch
36	! bugfix: cpp-directives for serial mode added
37	!
38	! 4420 2020-02-24 14:13:56Z maronga
39	! Added output control for wind turbine model
40	!
41	! 4403 2020-02-12 13:08:46Z banzhafs
42	! Allowing both existing and on-demand emission read modes
43	!
44	! 4360 2020-01-07 11:25:50Z suehring
45	! Bugfix, hour_call_emis uninitialized at first call of time_integration
46	!
47	! 4346 2019-12-18 11:55:56Z motisi
48	! Introduction of wall_flags_total_0, which currently sets bits based on static
49	! topography information used in wall_flags_static_0
50	!
51	! 4329 2019-12-10 15:46:36Z motisi
52	! Renamed wall_flags_0 to wall_flags_static_0
53	!
54	! 4281 2019-10-29 15:15:39Z schwenkel
55	! Moved boundary conditions to module interface
56	!
57	! 4276 2019-10-28 16:03:29Z schwenkel
58	! Further modularization of lpm code components
59	!
60	! 4275 2019-10-28 15:34:55Z schwenkel
61	! Move call oft lpm to the end of intermediate timestep loop
62	!
63	! 4268 2019-10-17 11:29:38Z schwenkel
64	! Removing module specific boundary conditions an put them into their modules
65	!
66	! 4227 2019-09-10 18:04:34Z gronemeier
67	! implement new palm_date_time_mod
68	!
69	! 4226 2019-09-10 17:03:24Z suehring
70	! Changes in interface for the offline nesting
71	!
72	! 4182 2019-08-22 15:20:23Z scharf
73	! Corrected "Former revisions" section
74	!
75	! 4170 2019-08-19 17:12:31Z gronemeier
76	! copy diss, diss_p, tdiss_m to GPU
77	!
78	! 4144 2019-08-06 09:11:47Z raasch
79	! relational operators .EQ., .NE., etc. replaced by ==, /=, etc.
80	!
81	! 4126 2019-07-30 11:09:11Z gronemeier
82	! renamed routine to calculate uv exposure
83	!
84	! 4111 2019-07-22 18:16:57Z suehring
85	! advc_flags_1 / advc_flags_2 renamed to advc_flags_m / advc_flags_s
86	!
87	! 4069 2019-07-01 14:05:51Z Giersch
88	! Masked output running index mid has been introduced as a local variable to
89	! avoid runtime error (Loop variable has been modified) in time_integration
90	!
91	! 4064 2019-07-01 05:33:33Z gronemeier
92	! Moved call to radiation module out of intermediate time loop
93	!
94	! 4048 2019-06-21 21:00:21Z knoop
95	! Moved production_e_init call into turbulence_closure_mod
96	!
97	! 4047 2019-06-21 18:58:09Z knoop
98	! Added remainings of swap_timelevel upon its dissolution
99	!
100	! 4043 2019-06-18 16:59:00Z schwenkel
101	! Further LPM modularization
102	!
103	! 4039 2019-06-18 10:32:41Z suehring
104	! Rename subroutines in module for diagnostic quantities
105	!
106	! 4029 2019-06-14 14:04:35Z raasch
107	! exchange of ghost points and boundary conditions separated for chemical species and SALSA module,
108	! bugfix: decycling of chemistry species after nesting data transfer
109	!
110	! 4022 2019-06-12 11:52:39Z suehring
111	! Call synthetic turbulence generator at last RK3 substep right after boundary
112	! conditions are updated in offline nesting in order to assure that
113	! perturbations are always imposed
114	!
115	! 4017 2019-06-06 12:16:46Z schwenkel
116	! Mass (volume) flux correction included to ensure global mass conservation for child domains.
117	!
118	! 3994 2019-05-22 18:08:09Z suehring
119	! output of turbulence intensity added
120	!
121	! 3988 2019-05-22 11:32:37Z kanani
122	! Implement steerable output interval for virtual measurements
123	!
124	! 3968 2019-05-13 11:04:01Z suehring
125	! replace nspec_out with n_matched_vars
126	!
127	! 3929 2019-04-24 12:52:08Z banzhafs
128	! Reverse changes back from revision 3878: use chem_boundary_conds instead of
129	! chem_boundary_conds_decycle
130	!
131	!
132	! 3885 2019-04-11 11:29:34Z kanani
133	! Changes related to global restructuring of location messages and introduction
134	! of additional debug messages
135	!
136	! 3879 2019-04-08 20:25:23Z knoop
137	! Moved wtm_forces to module_interface_actions
138	!
139	! 3872 2019-04-08 15:03:06Z knoop
140	! Modifications made for salsa:
141	! - Call salsa_emission_update at each time step but do the checks within
142	! salsa_emission_update (i.e. skip_time_do_salsa >= time_since_reference_point
143	! and next_aero_emission_update <= time_since_reference_point ).
144	! - Renamed nbins --> nbins_aerosol, ncc_tot --> ncomponents_mass and
145	! ngast --> ngases_salsa and loop indices b, c and sg to ib, ic and ig
146	! - Apply nesting for salsa variables
147	! - Removed cpu_log calls speciffic for salsa.
148	!
149	! 3833 2019-03-28 15:04:04Z forkel
150	! added USE chem_gasphase_mod, replaced nspec by nspec since fixed compounds are not integrated
151	!
152	! 3820 2019-03-27 11:53:41Z forkel
153	! renamed do_emiss to emissions_anthropogenic (ecc)
154	!
155	!
156	! 3774 2019-03-04 10:52:49Z moh.hefny
157	! rephrase if statement to avoid unallocated array in case of
158	! nesting_offline is false (crashing during debug mode)
159	!
160	! 3761 2019-02-25 15:31:42Z raasch $
161	! module section re-formatted and openacc required variables moved to separate section,
162	! re-formatting to 100 char line width
163	!
164	! 3745 2019-02-15 18:57:56Z suehring
165	! Call indoor model after first timestep
166	!
167	! 3744 2019-02-15 18:38:58Z suehring
168	! - Moved call of bio_calculate_thermal_index_maps from biometeorology module to
169	! time_integration to make sure averaged input is updated before calculating.
170	!
171	! 3739 2019-02-13 08:05:17Z dom_dwd_user
172	! Removed everything related to "time_bio_results" as this is never used.
173	!
174	! 3724 2019-02-06 16:28:23Z kanani
175	! Correct double-used log_point_s unit
176	!
177	! 3719 2019-02-06 13:10:18Z kanani
178	! - removed wind_turbine cpu measurement, since same time is measured inside
179	! wtm_forces subroutine as special measures
180	! - moved the numerous vnest cpulog to special measures
181	! - extended radiation cpulog over entire radiation part,
182	! moved radiation_interactions cpulog to special measures
183	! - moved some cpu_log calls to this routine for better overview
184	!
185	! 3705 2019-01-29 19:56:39Z suehring
186	! Data output for virtual measurements added
187	!
188	! 3704 2019-01-29 19:51:41Z suehring
189	! Rename subroutines for surface-data output
190	!
191	! 3647 2019-01-02 14:10:44Z kanani
192	! Bugfix: add time_since_reference_point to IF clause for data_output calls
193	! (otherwise skip_time_* values don't come into affect with dt_do* = 0.0).
194	! Clean up indoor_model and biometeorology model call.
195	!
196	! Revision 1.1 1997/08/11 06:19:04 raasch
197	! Initial revision
198	!
199	!
200	! Description:
201	! ------------
202	!> Integration in time of the model equations, statistical analysis and graphic
203	!> output
204	!------------------------------------------------------------------------------!
205	SUBROUTINE time_integration
206
207
208	USE advec_ws, &
209	ONLY: ws_statistics
210
211	USE arrays_3d, &
212	ONLY: diss, diss_p, dzu, e_p, nc_p, nr_p, prho, pt, pt_p, pt_init, q, qc_p, qr_p, q_init, &
213	q_p, ref_state, rho_ocean, sa_p, s_p, tend, u, u_p, v, vpt, v_p, w_p
214
215	#if defined( __parallel ) && ! defined( _OPENACC )
216	USE arrays_3d, &
217	ONLY: e, nc, nr, qc, qr, s, w
218	#endif
219
220	USE biometeorology_mod, &
221	ONLY: bio_calculate_thermal_index_maps, thermal_comfort, bio_calculate_uv_exposure, &
222	uv_exposure
223
224	USE bulk_cloud_model_mod, &
225	ONLY: bulk_cloud_model, calc_liquid_water_content, collision_turbulence, &
226	microphysics_morrison, microphysics_seifert
227
228	USE calc_mean_profile_mod, &
229	ONLY: calc_mean_profile
230
231	USE chem_emissions_mod, &
232	ONLY: chem_emissions_setup, chem_emissions_update_on_demand
233
234	USE chem_gasphase_mod, &
235	ONLY: nvar
236
237	USE chem_modules, &
238	ONLY: bc_cs_t_val, chem_species, emissions_anthropogenic, emiss_read_legacy_mode, &
239	n_matched_vars
240
241	#if defined( __parallel )
242	USE chem_modules, &
243	ONLY: cs_name
244	#endif
245
246	USE chemistry_model_mod, &
247	ONLY: chem_boundary_conds
248
249	USE control_parameters, &
250	ONLY: advected_distance_x, advected_distance_y, air_chemistry, average_count_3d, &
251	averaging_interval, averaging_interval_pr, bc_lr_cyc, bc_ns_cyc, bc_pt_t_val, &
252	bc_q_t_val, biometeorology, call_psolver_at_all_substeps, child_domain, &
253	constant_flux_layer, constant_heatflux, create_disturbances, &
254	dopr_n, constant_diffusion, coupling_mode, coupling_start_time, &
255	current_timestep_number, disturbance_created, disturbance_energy_limit, dist_range, &
256	do_sum, dt_3d, dt_averaging_input, dt_averaging_input_pr, dt_coupling, &
257	dt_data_output_av, dt_disturb, dt_do2d_xy, dt_do2d_xz, dt_do2d_yz, dt_do3d, &
258	dt_domask,dt_dopts, dt_dopr, dt_dopr_listing, dt_dots, dt_run_control, &
259	end_time, first_call_lpm, first_call_mas, galilei_transformation, humidity, &
260	indoor_model, intermediate_timestep_count, intermediate_timestep_count_max, &
261	land_surface, large_scale_forcing, loop_optimization, lsf_surf, lsf_vert, masks, &
262	multi_agent_system_end, multi_agent_system_start, nesting_offline, neutral, &
263	nr_timesteps_this_run, nudging, ocean_mode, passive_scalar, pt_reference, &
264	pt_slope_offset, random_heatflux, rans_tke_e, run_coupled, salsa, &
265	simulated_time, simulated_time_chr, skip_time_do2d_xy, skip_time_do2d_xz, &
266	skip_time_do2d_yz, skip_time_do3d, skip_time_domask, skip_time_dopr, &
267	skip_time_data_output_av, sloping_surface, stop_dt, surface_output, &
268	terminate_coupled, terminate_run, timestep_scheme, time_coupling, time_do2d_xy, &
269	time_do2d_xz, time_do2d_yz, time_do3d, time_domask, time_dopr, time_dopr_av, &
270	time_dopr_listing, time_dopts, time_dosp, time_dosp_av, time_dots, time_do_av, &
271	time_do_sla, time_disturb, time_run_control, time_since_reference_point, &
272	turbulent_inflow, turbulent_outflow, urban_surface, &
273	use_initial_profile_as_reference, use_single_reference_value, u_gtrans, v_gtrans, &
274	virtual_flight, virtual_measurement, ws_scheme_mom, ws_scheme_sca, timestep_count
275
276	#if defined( __parallel )
277	USE control_parameters, &
278	ONLY: rans_mode
279	#endif
280
281	USE cpulog, &
282	ONLY: cpu_log, log_point, log_point_s
283
284	USE diagnostic_output_quantities_mod, &
285	ONLY: doq_calculate, &
286	timestep_number_at_prev_calc
287
288	USE exchange_horiz_mod, &
289	ONLY: exchange_horiz
290
291	USE flight_mod, &
292	ONLY: flight_measurement
293
294	USE grid_variables, &
295	ONLY: ddx, ddy
296
297	USE indices, &
298	ONLY: nbgp, nx, nxl, nxlg, nxr, nxrg, nzb, nzt
299
300	USE indoor_model_mod, &
301	ONLY: dt_indoor, im_main_heatcool, time_indoor
302
303	USE interfaces
304
305	USE kinds
306
307	USE land_surface_model_mod, &
308	ONLY: lsm_boundary_condition, lsm_energy_balance, lsm_soil_model, skip_time_do_lsm
309
310	USE lagrangian_particle_model_mod, &
311	ONLY: lpm_data_output_ptseries
312
313	USE lsf_nudging_mod, &
314	ONLY: calc_tnudge, ls_forcing_surf, ls_forcing_vert, nudge_ref
315
316	USE module_interface, &
317	ONLY: module_interface_actions, module_interface_swap_timelevel, &
318	module_interface_boundary_conditions
319
320	USE multi_agent_system_mod, &
321	ONLY: agents_active, multi_agent_system
322
323	USE nesting_offl_mod, &
324	ONLY: nesting_offl_bc, &
325	nesting_offl_geostrophic_wind, &
326	nesting_offl_input, &
327	nesting_offl_interpolation_factor, &
328	nesting_offl_mass_conservation
329
330	USE netcdf_data_input_mod, &
331	ONLY: chem_emis, chem_emis_att
332
333	USE ocean_mod, &
334	ONLY: prho_reference
335
336	USE palm_date_time_mod, &
337	ONLY: get_date_time
338
339	USE particle_attributes, &
340	ONLY: particle_advection, particle_advection_start, use_sgs_for_particles, wang_kernel
341
342	USE pegrid
343
344	#if defined( __parallel )
345	USE pmc_interface, &
346	ONLY: nested_run, nesting_mode, pmci_boundary_conds, pmci_datatrans, pmci_synchronize, &
347	pmci_ensure_nest_mass_conservation, pmci_ensure_nest_mass_conservation_vertical, &
348	pmci_set_swaplevel
349	#endif
350
351	USE progress_bar, &
352	ONLY: finish_progress_bar, output_progress_bar
353
354	USE prognostic_equations_mod, &
355	ONLY: prognostic_equations_cache, prognostic_equations_vector
356
357	USE radiation_model_mod, &
358	ONLY: dt_radiation, force_radiation_call, radiation, radiation_control, &
359	radiation_interaction, radiation_interactions, skip_time_do_radiation, time_radiation
360
361	USE salsa_mod, &
362	ONLY: aerosol_number, aerosol_mass, bc_am_t_val, bc_an_t_val, bc_gt_t_val, &
363	nbins_aerosol, ncomponents_mass, ngases_salsa, salsa_boundary_conds, &
364	salsa_emission_update, salsa_gas, salsa_gases_from_chem, skip_time_do_salsa
365
366	USE spectra_mod, &
367	ONLY: average_count_sp, averaging_interval_sp, calc_spectra, dt_dosp, skip_time_dosp
368
369	USE statistics, &
370	ONLY: flow_statistics_called, hom, pr_palm, sums_ls_l
371
372
373	USE surface_layer_fluxes_mod, &
374	ONLY: surface_layer_fluxes
375
376	USE surface_data_output_mod, &
377	ONLY: average_count_surf, averaging_interval_surf, dt_dosurf, dt_dosurf_av, &
378	surface_data_output, surface_data_output_averaging, skip_time_dosurf, &
379	skip_time_dosurf_av, time_dosurf, time_dosurf_av
380
381	USE surface_mod, &
382	ONLY: surf_def_h, surf_lsm_h, surf_usm_h
383
384	USE synthetic_turbulence_generator_mod, &
385	ONLY: dt_stg_call, dt_stg_adjust, parametrize_inflow_turbulence, stg_adjust, stg_main, &
386	time_stg_adjust, time_stg_call, use_syn_turb_gen
387
388	USE turbulence_closure_mod, &
389	ONLY: tcm_diffusivities
390
391	USE urban_surface_mod, &
392	ONLY: usm_boundary_condition, usm_material_heat_model, usm_material_model, &
393	usm_surface_energy_balance, usm_green_heat_model
394
395	USE vertical_nesting_mod, &
396	ONLY: vnested, vnest_init
397
398	#if defined( __parallel )
399	USE vertical_nesting_mod, &
400	ONLY: vnest_anterpolate, vnest_anterpolate_e, vnest_boundary_conds, &
401	vnest_boundary_conds_khkm, vnest_deallocate, vnest_init_fine, vnest_start_time
402	#endif
403
404	USE virtual_measurement_mod, &
405	ONLY: dt_virtual_measurement, &
406	time_virtual_measurement, &
407	vm_data_output, &
408	vm_sampling, &
409	vm_time_start
410
411
412	USE wind_turbine_model_mod, &
413	ONLY: dt_data_output_wtm, time_wtm, wind_turbine, wtm_data_output
414
415	#if defined( _OPENACC )
416	USE arrays_3d, &
417	ONLY: d, dd2zu, ddzu, ddzw, &
418	diss_l_u, &
419	diss_l_v, &
420	diss_l_w, &
421	diss_s_u, &
422	diss_s_v, &
423	diss_s_w, &
424	drho_air, drho_air_zw, dzw, e, &
425	flux_l_u, &
426	flux_l_v, &
427	flux_l_w, &
428	flux_s_u, &
429	flux_s_v, &
430	flux_s_w, &
431	heatflux_output_conversion, &
432	kh, km, momentumflux_output_conversion, nc, nr, p, ptdf_x, ptdf_y, qc, qr, rdf, &
433	rdf_sc, rho_air, rho_air_zw, s, tdiss_m, te_m, tpt_m, tu_m, tv_m, tw_m, ug, u_init, &
434	u_stokes_zu, vg, v_init, v_stokes_zu, w, zu
435
436	USE control_parameters, &
437	ONLY: tsc
438
439	USE indices, &
440	ONLY: advc_flags_m, advc_flags_s, nyn, nyng, nys, nysg, nz, nzb_max, wall_flags_total_0
441
442	USE statistics, &
443	ONLY: rmask, statistic_regions, sums_l, sums_l_l, sums_us2_ws_l, &
444	sums_wsus_ws_l, sums_vs2_ws_l, sums_wsvs_ws_l, sums_ws2_ws_l, sums_wspts_ws_l, &
445	sums_wsqs_ws_l, sums_wssas_ws_l, sums_wsqcs_ws_l, sums_wsqrs_ws_l, sums_wsncs_ws_l, &
446	sums_wsnrs_ws_l, sums_wsss_ws_l, weight_substep, sums_salsa_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) :: lsp !<
464	INTEGER(iwp) :: mid !< masked output running index
465	#if defined( __parallel )
466	INTEGER(iwp) :: lsp_usr !<
467	INTEGER(iwp) :: n !< loop counter for chemistry species
468	#endif
469
470	REAL(wp) :: dt_3d_old !< temporary storage of timestep to be used for
471	!< steering of run control output interval
472	REAL(wp) :: time_since_reference_point_save !< original value of
473	!< time_since_reference_point
474
475
476	!
477	!-- Copy data from arrays_3d
478	!$ACC DATA &
479	!$ACC COPY(d(nzb+1:nzt,nys:nyn,nxl:nxr)) &
480	!$ACC COPY(diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
481	!$ACC COPY(e(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
482	!$ACC COPY(u(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
483	!$ACC COPY(v(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
484	!$ACC COPY(w(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
485	!$ACC COPY(kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
486	!$ACC COPY(km(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
487	!$ACC COPY(p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
488	!$ACC COPY(pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
489
490	!$ACC DATA &
491	!$ACC COPYIN(diss_l_u(0:nz+1,nys:nyn,0), flux_l_u(0:nz+1,nys:nyn,0)) &
492	!$ACC COPYIN(diss_l_v(0:nz+1,nys:nyn,0), flux_l_v(0:nz+1,nys:nyn,0)) &
493	!$ACC COPYIN(diss_l_w(0:nz+1,nys:nyn,0), flux_l_w(0:nz+1,nys:nyn,0)) &
494	!$ACC COPYIN(diss_s_u(0:nz+1,0), flux_s_u(0:nz+1,0)) &
495	!$ACC COPYIN(diss_s_v(0:nz+1,0), flux_s_v(0:nz+1,0)) &
496	!$ACC COPYIN(diss_s_w(0:nz+1,0), flux_s_w(0:nz+1,0)) &
497	!$ACC COPY(diss_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
498	!$ACC COPY(e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
499	!$ACC COPY(u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
500	!$ACC COPY(v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
501	!$ACC COPY(w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
502	!$ACC COPY(pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
503	!$ACC COPY(tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
504	!$ACC COPY(tdiss_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
505	!$ACC COPY(te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
506	!$ACC COPY(tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
507	!$ACC COPY(tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
508	!$ACC COPY(tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
509	!$ACC COPY(tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
510
511	!$ACC DATA &
512	!$ACC COPYIN(rho_air(nzb:nzt+1), drho_air(nzb:nzt+1)) &
513	!$ACC COPYIN(rho_air_zw(nzb:nzt+1), drho_air_zw(nzb:nzt+1)) &
514	!$ACC COPYIN(zu(nzb:nzt+1)) &
515	!$ACC COPYIN(dzu(1:nzt+1), dzw(1:nzt+1)) &
516	!$ACC COPYIN(ddzu(1:nzt+1), dd2zu(1:nzt)) &
517	!$ACC COPYIN(ddzw(1:nzt+1)) &
518	!$ACC COPYIN(heatflux_output_conversion(nzb:nzt+1)) &
519	!$ACC COPYIN(momentumflux_output_conversion(nzb:nzt+1)) &
520	!$ACC COPYIN(rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt)) &
521	!$ACC COPYIN(ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng)) &
522	!$ACC COPYIN(ref_state(0:nz+1)) &
523	!$ACC COPYIN(u_init(0:nz+1), v_init(0:nz+1)) &
524	!$ACC COPYIN(u_stokes_zu(nzb:nzt+1), v_stokes_zu(nzb:nzt+1)) &
525	!$ACC COPYIN(pt_init(0:nz+1)) &
526	!$ACC COPYIN(ug(0:nz+1), vg(0:nz+1))
527
528	!
529	!-- Copy data from control_parameters
530	!$ACC DATA &
531	!$ACC COPYIN(tsc(1:5))
532
533	!
534	!-- Copy data from grid_variables
535	!$ACC DATA &
536	!$ACC COPYIN(ddx, ddy)
537
538	!
539	!-- Copy data from indices
540	!$ACC DATA &
541	!$ACC COPYIN(advc_flags_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
542	!$ACC COPYIN(advc_flags_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
543	!$ACC COPYIN(wall_flags_total_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
544
545	!
546	!-- Copy data from surface_mod
547	!$ACC DATA &
548	!$ACC COPYIN(bc_h(0:1)) &
549	!$ACC COPYIN(bc_h(0)%i(1:bc_h(0)%ns)) &
550	!$ACC COPYIN(bc_h(0)%j(1:bc_h(0)%ns)) &
551	!$ACC COPYIN(bc_h(0)%k(1:bc_h(0)%ns)) &
552	!$ACC COPYIN(bc_h(1)%i(1:bc_h(1)%ns)) &
553	!$ACC COPYIN(bc_h(1)%j(1:bc_h(1)%ns)) &
554	!$ACC COPYIN(bc_h(1)%k(1:bc_h(1)%ns))
555
556	!
557	!-- Copy data from statistics
558	!$ACC DATA &
559	!$ACC COPYIN(hom(0:nz+1,1:2,1:4,0)) &
560	!$ACC COPYIN(rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions)) &
561	!$ACC COPYIN(weight_substep(1:intermediate_timestep_count_max)) &
562	!$ACC COPY(sums_l(nzb:nzt+1,1:pr_palm,0)) &
563	!$ACC COPY(sums_l_l(nzb:nzt+1,0:statistic_regions,0)) &
564	!$ACC COPY(sums_us2_ws_l(nzb:nzt+1,0)) &
565	!$ACC COPY(sums_wsus_ws_l(nzb:nzt+1,0)) &
566	!$ACC COPY(sums_vs2_ws_l(nzb:nzt+1,0)) &
567	!$ACC COPY(sums_wsvs_ws_l(nzb:nzt+1,0)) &
568	!$ACC COPY(sums_ws2_ws_l(nzb:nzt+1,0)) &
569	!$ACC COPY(sums_wspts_ws_l(nzb:nzt+1,0)) &
570	!$ACC COPY(sums_wssas_ws_l(nzb:nzt+1,0)) &
571	!$ACC COPY(sums_wsqs_ws_l(nzb:nzt+1,0)) &
572	!$ACC COPY(sums_wsqcs_ws_l(nzb:nzt+1,0)) &
573	!$ACC COPY(sums_wsqrs_ws_l(nzb:nzt+1,0)) &
574	!$ACC COPY(sums_wsncs_ws_l(nzb:nzt+1,0)) &
575	!$ACC COPY(sums_wsnrs_ws_l(nzb:nzt+1,0)) &
576	!$ACC COPY(sums_wsss_ws_l(nzb:nzt+1,0)) &
577	!$ACC COPY(sums_salsa_ws_l(nzb:nzt+1,0))
578
579	!
580	!-- Next statement is to avoid compiler warnings about unused variables. Please
581	!-- remove in case that you are using them. ddx and ddy need to be defined in
582	!-- time_integration because of ACC COPYIN directive.
583	ddx = ddx
584	ddy = ddy
585
586	#if defined( _OPENACC )
587	CALL enter_surface_arrays
588	#endif
589
590	!
591	!-- At beginning determine the first time step
592	CALL timestep
593
594	#if defined( __parallel )
595	!
596	!-- Synchronize the timestep in case of nested run.
597	IF ( nested_run ) THEN
598	!
599	!-- Synchronization by unifying the time step.
600	!-- Global minimum of all time-steps is used for all.
601	CALL pmci_synchronize
602	ENDIF
603	#endif
604
605	!
606	!-- Determine and print out the run control quantities before the first time
607	!-- step of this run. For the initial run, some statistics (e.g. divergence)
608	!-- need to be determined first --> CALL flow_statistics at the beginning of
609	!-- run_control
610	CALL run_control
611	!
612	!-- Data exchange between coupled models in case that a call has been omitted
613	!-- at the end of the previous run of a job chain.
614	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled .AND. .NOT. vnested ) THEN
615	!
616	!-- In case of model termination initiated by the local model the coupler
617	!-- must not be called because this would again cause an MPI hang.
618	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
619	CALL surface_coupler
620	time_coupling = time_coupling - dt_coupling
621	ENDDO
622	IF (time_coupling == 0.0_wp .AND. time_since_reference_point < dt_coupling ) THEN
623	time_coupling = time_since_reference_point
624	ENDIF
625	ENDIF
626
627	CALL location_message( 'atmosphere (and/or ocean) time-stepping', 'start' )
628
629	!
630	!-- Start of the time loop
631	DO WHILE ( simulated_time < end_time .AND. .NOT. stop_dt .AND. .NOT. terminate_run )
632
633	CALL cpu_log( log_point_s(10), 'timesteps', 'start' )
634
635	#if defined( __parallel )
636	!
637	!-- Vertical nesting: initialize fine grid
638	IF ( vnested ) THEN
639	IF ( .NOT. vnest_init .AND. simulated_time >= vnest_start_time ) THEN
640	CALL cpu_log( log_point_s(22), 'vnest_init', 'start' )
641	CALL vnest_init_fine
642	vnest_init = .TRUE.
643	CALL cpu_log( log_point_s(22), 'vnest_init', 'stop' )
644	ENDIF
645	ENDIF
646	#endif
647
648	!
649	!-- Determine ug, vg and w_subs in dependence on data from external file
650	!-- LSF_DATA
651	IF ( large_scale_forcing .AND. lsf_vert ) THEN
652	CALL ls_forcing_vert ( simulated_time )
653	sums_ls_l = 0.0_wp
654	ENDIF
655
656	!
657	!-- Set pt_init and q_init to the current profiles taken from
658	!-- NUDGING_DATA
659	IF ( nudging ) THEN
660	CALL nudge_ref ( simulated_time )
661	!
662	!-- Store temperature gradient at the top boundary for possible Neumann
663	!-- boundary condition
664	bc_pt_t_val = ( pt_init(nzt+1) - pt_init(nzt) ) / dzu(nzt+1)
665	bc_q_t_val = ( q_init(nzt+1) - q_init(nzt) ) / dzu(nzt+1)
666	IF ( air_chemistry ) THEN
667	DO lsp = 1, nvar
668	bc_cs_t_val = ( chem_species(lsp)%conc_pr_init(nzt+1) &
669	- chem_species(lsp)%conc_pr_init(nzt) ) &
670	/ dzu(nzt+1)
671	ENDDO
672	ENDIF
673	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
674	DO ib = 1, nbins_aerosol
675	bc_an_t_val = ( aerosol_number(ib)%init(nzt+1) - aerosol_number(ib)%init(nzt) ) / &
676	dzu(nzt+1)
677	DO ic = 1, ncomponents_mass
678	icc = ( ic - 1 ) * nbins_aerosol + ib
679	bc_am_t_val = ( aerosol_mass(icc)%init(nzt+1) - aerosol_mass(icc)%init(nzt) ) /&
680	dzu(nzt+1)
681	ENDDO
682	ENDDO
683	IF ( .NOT. salsa_gases_from_chem ) THEN
684	DO ig = 1, ngases_salsa
685	bc_gt_t_val = ( salsa_gas(ig)%init(nzt+1) - salsa_gas(ig)%init(nzt) ) / &
686	dzu(nzt+1)
687	ENDDO
688	ENDIF
689	ENDIF
690	ENDIF
691	!
692	!-- Input of boundary data.
693	IF ( nesting_offline ) CALL nesting_offl_input
694	!
695	!-- Execute all other module actions routines
696	CALL module_interface_actions( 'before_timestep' )
697
698	!-- Start of intermediate step loop
699	intermediate_timestep_count = 0
700	DO WHILE ( intermediate_timestep_count < intermediate_timestep_count_max )
701
702	intermediate_timestep_count = intermediate_timestep_count + 1
703
704	!
705	!-- Set the steering factors for the prognostic equations which depend
706	!-- on the timestep scheme
707	CALL timestep_scheme_steering
708
709	!
710	!-- Calculate those variables needed in the tendency terms which need
711	!-- global communication
712	IF ( .NOT. use_single_reference_value .AND. .NOT. use_initial_profile_as_reference ) &
713	THEN
714	!
715	!-- Horizontally averaged profiles to be used as reference state in
716	!-- buoyancy terms (WARNING: only the respective last call of
717	!-- calc_mean_profile defines the reference state!)
718	IF ( .NOT. neutral ) THEN
719	CALL calc_mean_profile( pt, 4 )
720	ref_state(:) = hom(:,1,4,0) ! this is used in the buoyancy term
721	ENDIF
722	IF ( ocean_mode ) THEN
723	CALL calc_mean_profile( rho_ocean, 64 )
724	ref_state(:) = hom(:,1,64,0)
725	ENDIF
726	IF ( humidity ) THEN
727	CALL calc_mean_profile( vpt, 44 )
728	ref_state(:) = hom(:,1,44,0)
729	ENDIF
730	!
731	!-- Assure that ref_state does not become zero at any level
732	!-- ( might be the case if a vertical level is completely occupied
733	!-- with topography ).
734	ref_state = MERGE( MAXVAL(ref_state), ref_state, ref_state == 0.0_wp )
735	ENDIF
736
737	IF ( ( ws_scheme_mom .OR. ws_scheme_sca ) .AND. intermediate_timestep_count == 1 ) &
738	THEN
739	CALL ws_statistics
740	ENDIF
741	!
742	!-- In case of nudging calculate current nudging time scale and horizontal
743	!-- means of u, v, pt and q
744	IF ( nudging ) THEN
745	CALL calc_tnudge( simulated_time )
746	CALL calc_mean_profile( u, 1 )
747	CALL calc_mean_profile( v, 2 )
748	CALL calc_mean_profile( pt, 4 )
749	CALL calc_mean_profile( q, 41 )
750	ENDIF
751	!
752	!-- Execute all other module actions routunes
753	CALL module_interface_actions( 'before_prognostic_equations' )
754	!
755	!-- Solve the prognostic equations. A fast cache optimized version with
756	!-- only one single loop is used in case of Piascek-Williams advection
757	!-- scheme. NEC vector machines use a different version, because
758	!-- in the other versions a good vectorization is prohibited due to
759	!-- inlining problems.
760	IF ( loop_optimization == 'cache' ) THEN
761	CALL prognostic_equations_cache
762	ELSEIF ( loop_optimization == 'vector' ) THEN
763	CALL prognostic_equations_vector
764	ENDIF
765	!
766	!-- Movement of agents in multi agent system
767	IF ( agents_active .AND. time_since_reference_point >= multi_agent_system_start .AND. &
768	time_since_reference_point <= multi_agent_system_end .AND. &
769	intermediate_timestep_count == 1 ) &
770	THEN
771	CALL multi_agent_system
772	first_call_mas = .FALSE.
773	ENDIF
774
775	!
776	!-- Exchange of ghost points (lateral boundary conditions)
777	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'start' )
778
779	CALL exchange_horiz( u_p, nbgp )
780	CALL exchange_horiz( v_p, nbgp )
781	CALL exchange_horiz( w_p, nbgp )
782	CALL exchange_horiz( pt_p, nbgp )
783	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
784	IF ( rans_tke_e .OR. wang_kernel .OR. collision_turbulence &
785	.OR. use_sgs_for_particles ) THEN
786	IF ( rans_tke_e ) THEN
787	CALL exchange_horiz( diss_p, nbgp )
788	ELSE
789	CALL exchange_horiz( diss, nbgp )
790	ENDIF
791	ENDIF
792	IF ( ocean_mode ) THEN
793	CALL exchange_horiz( sa_p, nbgp )
794	CALL exchange_horiz( rho_ocean, nbgp )
795	CALL exchange_horiz( prho, nbgp )
796	ENDIF
797	IF ( humidity ) THEN
798	CALL exchange_horiz( q_p, nbgp )
799	IF ( bulk_cloud_model .AND. microphysics_morrison ) THEN
800	CALL exchange_horiz( qc_p, nbgp )
801	CALL exchange_horiz( nc_p, nbgp )
802	ENDIF
803	IF ( bulk_cloud_model .AND. microphysics_seifert ) THEN
804	CALL exchange_horiz( qr_p, nbgp )
805	CALL exchange_horiz( nr_p, nbgp )
806	ENDIF
807	ENDIF
808	IF ( passive_scalar ) CALL exchange_horiz( s_p, nbgp )
809	IF ( air_chemistry ) THEN
810	DO lsp = 1, nvar
811	CALL exchange_horiz( chem_species(lsp)%conc_p, nbgp )
812	ENDDO
813	ENDIF
814
815	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
816	DO ib = 1, nbins_aerosol
817	CALL exchange_horiz( aerosol_number(ib)%conc_p, nbgp )
818	DO ic = 1, ncomponents_mass
819	icc = ( ic - 1 ) * nbins_aerosol + ib
820	CALL exchange_horiz( aerosol_mass(icc)%conc_p, nbgp )
821	ENDDO
822	ENDDO
823	IF ( .NOT. salsa_gases_from_chem ) THEN
824	DO ig = 1, ngases_salsa
825	CALL exchange_horiz( salsa_gas(ig)%conc_p, nbgp )
826	ENDDO
827	ENDIF
828	ENDIF
829	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'stop' )
830
831	!
832	!-- Boundary conditions for the prognostic quantities (except of the
833	!-- velocities at the outflow in case of a non-cyclic lateral wall) and
834	!-- boundary conditions for module-specific variables
835	CALL module_interface_boundary_conditions
836	!
837	!-- Incrementing timestep counter
838	timestep_count = timestep_count + 1
839
840	CALL cpu_log( log_point(28), 'swap_timelevel', 'start' )
841	!
842	!-- Set the swap level for all modules
843	CALL module_interface_swap_timelevel( MOD( timestep_count, 2) )
844
845	#if defined( __parallel )
846	!
847	!-- Set the swap level for steering the pmc data transfer
848	IF ( nested_run ) CALL pmci_set_swaplevel( MOD( timestep_count, 2) + 1 ) !> @todo: why the +1 ?
849	#endif
850
851	CALL cpu_log( log_point(28), 'swap_timelevel', 'stop' )
852
853	#if defined( __parallel )
854	!
855	!-- Vertical nesting: Interpolate fine grid data to the coarse grid
856	IF ( vnest_init ) THEN
857	CALL cpu_log( log_point_s(37), 'vnest_anterpolate', 'start' )
858	CALL vnest_anterpolate
859	CALL cpu_log( log_point_s(37), 'vnest_anterpolate', 'stop' )
860	ENDIF
861
862	IF ( nested_run ) THEN
863
864	CALL cpu_log( log_point(60), 'nesting', 'start' )
865	!
866	!-- Domain nesting. The data transfer subroutines pmci_parent_datatrans
867	!-- and pmci_child_datatrans are called inside the wrapper
868	!-- subroutine pmci_datatrans according to the control parameters
869	!-- nesting_mode and nesting_datatransfer_mode.
870	!-- TO_DO: why is nesting_mode given as a parameter here?
871	CALL pmci_datatrans( nesting_mode )
872
873	IF ( TRIM( nesting_mode ) == 'two-way' .OR. nesting_mode == 'vertical' ) THEN
874
875	CALL cpu_log( log_point_s(92), 'exchange-horiz-nest', 'start' )
876	!
877	!-- Exchange_horiz is needed for all parent-domains after the
878	!-- anterpolation
879	CALL exchange_horiz( u, nbgp )
880	CALL exchange_horiz( v, nbgp )
881	CALL exchange_horiz( w, nbgp )
882	IF ( .NOT. neutral ) CALL exchange_horiz( pt, nbgp )
883
884	IF ( humidity ) THEN
885
886	CALL exchange_horiz( q, nbgp )
887
888	IF ( bulk_cloud_model .AND. microphysics_morrison ) THEN
889	CALL exchange_horiz( qc, nbgp )
890	CALL exchange_horiz( nc, nbgp )
891	ENDIF
892	IF ( bulk_cloud_model .AND. microphysics_seifert ) THEN
893	CALL exchange_horiz( qr, nbgp )
894	CALL exchange_horiz( nr, nbgp )
895	ENDIF
896
897	ENDIF
898
899	IF ( passive_scalar ) CALL exchange_horiz( s, nbgp )
900
901	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e, nbgp )
902
903	IF ( .NOT. constant_diffusion .AND. rans_mode .AND. rans_tke_e ) THEN
904	CALL exchange_horiz( diss, nbgp )
905	ENDIF
906
907	IF ( air_chemistry ) THEN
908	DO n = 1, nvar
909	CALL exchange_horiz( chem_species(n)%conc, nbgp )
910	ENDDO
911	ENDIF
912
913	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
914	DO ib = 1, nbins_aerosol
915	CALL exchange_horiz( aerosol_number(ib)%conc, nbgp )
916	DO ic = 1, ncomponents_mass
917	icc = ( ic - 1 ) * nbins_aerosol + ib
918	CALL exchange_horiz( aerosol_mass(icc)%conc, nbgp )
919	ENDDO
920	ENDDO
921	IF ( .NOT. salsa_gases_from_chem ) THEN
922	DO ig = 1, ngases_salsa
923	CALL exchange_horiz( salsa_gas(ig)%conc, nbgp )
924	ENDDO
925	ENDIF
926	ENDIF
927	CALL cpu_log( log_point_s(92), 'exchange-horiz-nest', 'stop' )
928
929	ENDIF
930
931	!
932	!-- Set boundary conditions again after interpolation and anterpolation.
933	CALL pmci_boundary_conds
934
935	!
936	!-- Set chemistry boundary conditions (decycling)
937	IF ( air_chemistry ) THEN
938	DO lsp = 1, nvar
939	lsp_usr = 1
940	DO WHILE ( TRIM( cs_name( lsp_usr ) ) /= 'novalue' )
941	IF ( TRIM( chem_species(lsp)%name ) == TRIM( cs_name(lsp_usr) ) ) THEN
942	CALL chem_boundary_conds( chem_species(lsp)%conc, &
943	chem_species(lsp)%conc_pr_init )
944	ENDIF
945	lsp_usr = lsp_usr + 1
946	ENDDO
947	ENDDO
948	ENDIF
949
950	!
951	!-- Set SALSA boundary conditions (decycling)
952	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
953	DO ib = 1, nbins_aerosol
954	CALL salsa_boundary_conds( aerosol_number(ib)%conc, aerosol_number(ib)%init )
955	DO ic = 1, ncomponents_mass
956	icc = ( ic - 1 ) * nbins_aerosol + ib
957	CALL salsa_boundary_conds( aerosol_mass(icc)%conc, aerosol_mass(icc)%init )
958	ENDDO
959	ENDDO
960	IF ( .NOT. salsa_gases_from_chem ) THEN
961	DO ig = 1, ngases_salsa
962	CALL salsa_boundary_conds( salsa_gas(ig)%conc, salsa_gas(ig)%init )
963	ENDDO
964	ENDIF
965	ENDIF
966
967	CALL cpu_log( log_point(60), 'nesting', 'stop' )
968
969	ENDIF
970	#endif
971
972	!
973	!-- Temperature offset must be imposed at cyclic boundaries in x-direction
974	!-- when a sloping surface is used
975	IF ( sloping_surface ) THEN
976	IF ( nxl == 0 ) pt(:,:,nxlg:nxl-1) = pt(:,:,nxlg:nxl-1) - pt_slope_offset
977	IF ( nxr == nx ) pt(:,:,nxr+1:nxrg) = pt(:,:,nxr+1:nxrg) + pt_slope_offset
978	ENDIF
979
980	!
981	!-- Impose a turbulent inflow using the recycling method
982	IF ( turbulent_inflow ) CALL inflow_turbulence
983
984	!
985	!-- Set values at outflow boundary using the special outflow condition
986	IF ( turbulent_outflow ) CALL outflow_turbulence
987
988	!
989	!-- Impose a random perturbation on the horizontal velocity field
990	IF ( create_disturbances .AND. ( call_psolver_at_all_substeps .AND. &
991	intermediate_timestep_count == intermediate_timestep_count_max ) &
992	.OR. ( .NOT. call_psolver_at_all_substeps .AND. intermediate_timestep_count == 1 ) ) &
993	THEN
994	time_disturb = time_disturb + dt_3d
995	IF ( time_disturb >= dt_disturb ) THEN
996	IF ( disturbance_energy_limit /= 0.0_wp .AND. &
997	hom(nzb+5,1,pr_palm,0) < disturbance_energy_limit ) THEN
998	CALL disturb_field( 'u', tend, u )
999	CALL disturb_field( 'v', tend, v )
1000	ELSEIF ( ( .NOT. bc_lr_cyc .OR. .NOT. bc_ns_cyc ) &
1001	.AND. .NOT. child_domain .AND. .NOT. nesting_offline ) &
1002	THEN
1003	!
1004	!-- Runs with a non-cyclic lateral wall need perturbations
1005	!-- near the inflow throughout the whole simulation
1006	dist_range = 1
1007	CALL disturb_field( 'u', tend, u )
1008	CALL disturb_field( 'v', tend, v )
1009	dist_range = 0
1010	ENDIF
1011	time_disturb = time_disturb - dt_disturb
1012	ENDIF
1013	ENDIF
1014
1015	!
1016	!-- Map forcing data derived from larger scale model onto domain
1017	!-- boundaries. Further, update geostrophic wind components.
1018	IF ( nesting_offline .AND. intermediate_timestep_count == &
1019	intermediate_timestep_count_max ) THEN
1020	!-- Determine interpolation factor before boundary conditions and geostrophic wind
1021	!-- is updated.
1022	CALL nesting_offl_interpolation_factor
1023	CALL nesting_offl_bc
1024	CALL nesting_offl_geostrophic_wind
1025	ENDIF
1026	!
1027	!-- Impose a turbulent inflow using synthetic generated turbulence.
1028	IF ( use_syn_turb_gen .AND. &
1029	intermediate_timestep_count == intermediate_timestep_count_max ) THEN
1030	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'start' )
1031	CALL stg_main
1032	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'stop' )
1033	ENDIF
1034	!
1035	!-- Ensure mass conservation. This need to be done after imposing
1036	!-- synthetic turbulence and top boundary condition for pressure is set to
1037	!-- Neumann conditions.
1038	!-- Is this also required in case of Dirichlet?
1039	IF ( nesting_offline ) CALL nesting_offl_mass_conservation
1040	!
1041	!-- Reduce the velocity divergence via the equation for perturbation
1042	!-- pressure.
1043	IF ( intermediate_timestep_count == 1 .OR. &
1044	call_psolver_at_all_substeps ) THEN
1045
1046	IF ( vnest_init ) THEN
1047	#if defined( __parallel )
1048	!
1049	!-- Compute pressure in the CG, interpolate top boundary conditions
1050	!-- to the FG and then compute pressure in the FG
1051	IF ( coupling_mode == 'vnested_crse' ) CALL pres
1052
1053	CALL cpu_log( log_point_s(30), 'vnest_bc', 'start' )
1054	CALL vnest_boundary_conds
1055	CALL cpu_log( log_point_s(30), 'vnest_bc', 'stop' )
1056
1057	IF ( coupling_mode == 'vnested_fine' ) CALL pres
1058
1059	!-- Anterpolate TKE, satisfy Germano Identity
1060	CALL cpu_log( log_point_s(28), 'vnest_anter_e', 'start' )
1061	CALL vnest_anterpolate_e
1062	CALL cpu_log( log_point_s(28), 'vnest_anter_e', 'stop' )
1063	#else
1064	CONTINUE
1065	#endif
1066
1067	ELSE
1068	#if defined( __parallel )
1069	!
1070	!-- Mass (volume) flux correction to ensure global mass conservation for child domains.
1071	IF ( child_domain ) THEN
1072	IF ( nesting_mode == 'vertical' ) THEN
1073	CALL pmci_ensure_nest_mass_conservation_vertical
1074	ELSE
1075	CALL pmci_ensure_nest_mass_conservation
1076	ENDIF
1077	ENDIF
1078	#endif
1079	CALL pres
1080
1081	ENDIF
1082
1083	ENDIF
1084	!
1085	!-- Particle transport/physics with the Lagrangian particle model
1086	!-- (only once during intermediate steps, because it uses an Euler-step)
1087	!-- ### particle model should be moved before prognostic_equations, in order
1088	!-- to regard droplet interactions directly
1089
1090	CALL module_interface_actions( 'after_pressure_solver' )
1091	!
1092	!-- Interaction of droplets with temperature and mixing ratio.
1093	!-- Droplet condensation and evaporation is calculated within
1094	!-- advec_particles.
1095	!
1096	!-- If required, compute liquid water content
1097	IF ( bulk_cloud_model ) THEN
1098	CALL calc_liquid_water_content
1099	ENDIF
1100	!
1101	!-- If required, compute virtual potential temperature
1102	IF ( humidity ) THEN
1103	CALL compute_vpt
1104	ENDIF
1105
1106	!
1107	!-- Compute the diffusion quantities
1108	IF ( .NOT. constant_diffusion ) THEN
1109
1110	!
1111	!-- Determine surface fluxes shf and qsws and surface values
1112	!-- pt_surface and q_surface in dependence on data from external
1113	!-- file LSF_DATA respectively
1114	IF ( ( large_scale_forcing .AND. lsf_surf ) .AND. &
1115	intermediate_timestep_count == intermediate_timestep_count_max ) &
1116	THEN
1117	CALL ls_forcing_surf( simulated_time )
1118	ENDIF
1119
1120	!
1121	!-- First the vertical (and horizontal) fluxes in the surface
1122	!-- (constant flux) layer are computed
1123	IF ( constant_flux_layer ) THEN
1124	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'start' )
1125	CALL surface_layer_fluxes
1126	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'stop' )
1127	ENDIF
1128	!
1129	!-- If required, solve the energy balance for the surface and run soil
1130	!-- model. Call for horizontal as well as vertical surfaces
1131	IF ( land_surface .AND. time_since_reference_point >= skip_time_do_lsm) THEN
1132
1133	CALL cpu_log( log_point(54), 'land_surface', 'start' )
1134	!
1135	!-- Call for horizontal upward-facing surfaces
1136	CALL lsm_energy_balance( .TRUE., -1 )
1137	CALL lsm_soil_model( .TRUE., -1, .TRUE. )
1138	!
1139	!-- Call for northward-facing surfaces
1140	CALL lsm_energy_balance( .FALSE., 0 )
1141	CALL lsm_soil_model( .FALSE., 0, .TRUE. )
1142	!
1143	!-- Call for southward-facing surfaces
1144	CALL lsm_energy_balance( .FALSE., 1 )
1145	CALL lsm_soil_model( .FALSE., 1, .TRUE. )
1146	!
1147	!-- Call for eastward-facing surfaces
1148	CALL lsm_energy_balance( .FALSE., 2 )
1149	CALL lsm_soil_model( .FALSE., 2, .TRUE. )
1150	!
1151	!-- Call for westward-facing surfaces
1152	CALL lsm_energy_balance( .FALSE., 3 )
1153	CALL lsm_soil_model( .FALSE., 3, .TRUE. )
1154
1155	!
1156	!-- At the end, set boundary conditons for potential temperature
1157	!-- and humidity after running the land-surface model. This
1158	!-- might be important for the nesting, where arrays are transfered.
1159	CALL lsm_boundary_condition
1160
1161
1162	CALL cpu_log( log_point(54), 'land_surface', 'stop' )
1163	ENDIF
1164	!
1165	!-- If required, solve the energy balance for urban surfaces and run
1166	!-- the material heat model
1167	IF (urban_surface) THEN
1168	CALL cpu_log( log_point(74), 'urban_surface', 'start' )
1169
1170	CALL usm_surface_energy_balance( .FALSE. )
1171	IF ( usm_material_model ) THEN
1172	CALL usm_green_heat_model
1173	CALL usm_material_heat_model ( .FALSE. )
1174	ENDIF
1175
1176	!
1177	!-- At the end, set boundary conditons for potential temperature
1178	!-- and humidity after running the urban-surface model. This
1179	!-- might be important for the nesting, where arrays are transfered.
1180	CALL usm_boundary_condition
1181
1182	CALL cpu_log( log_point(74), 'urban_surface', 'stop' )
1183	ENDIF
1184	!
1185	!-- Compute the diffusion coefficients
1186	CALL cpu_log( log_point(17), 'diffusivities', 'start' )
1187	IF ( .NOT. humidity ) THEN
1188	IF ( ocean_mode ) THEN
1189	CALL tcm_diffusivities( prho, prho_reference )
1190	ELSE
1191	CALL tcm_diffusivities( pt, pt_reference )
1192	ENDIF
1193	ELSE
1194	CALL tcm_diffusivities( vpt, pt_reference )
1195	ENDIF
1196	CALL cpu_log( log_point(17), 'diffusivities', 'stop' )
1197
1198	#if defined( __parallel )
1199	!
1200	!-- Vertical nesting: set fine grid eddy viscosity top boundary condition
1201	IF ( vnest_init ) CALL vnest_boundary_conds_khkm
1202	#endif
1203
1204	ENDIF
1205
1206	ENDDO ! Intermediate step loop
1207
1208	!
1209	!-- Will be used at some point by flow_statistics.
1210	!$ACC UPDATE &
1211	!$ACC HOST(sums_l_l(nzb:nzt+1,0:statistic_regions,0)) &
1212	!$ACC HOST(sums_us2_ws_l(nzb:nzt+1,0)) &
1213	!$ACC HOST(sums_wsus_ws_l(nzb:nzt+1,0)) &
1214	!$ACC HOST(sums_vs2_ws_l(nzb:nzt+1,0)) &
1215	!$ACC HOST(sums_wsvs_ws_l(nzb:nzt+1,0)) &
1216	!$ACC HOST(sums_ws2_ws_l(nzb:nzt+1,0)) &
1217	!$ACC HOST(sums_wspts_ws_l(nzb:nzt+1,0)) &
1218	!$ACC HOST(sums_wssas_ws_l(nzb:nzt+1,0)) &
1219	!$ACC HOST(sums_wsqs_ws_l(nzb:nzt+1,0)) &
1220	!$ACC HOST(sums_wsqcs_ws_l(nzb:nzt+1,0)) &
1221	!$ACC HOST(sums_wsqrs_ws_l(nzb:nzt+1,0)) &
1222	!$ACC HOST(sums_wsncs_ws_l(nzb:nzt+1,0)) &
1223	!$ACC HOST(sums_wsnrs_ws_l(nzb:nzt+1,0)) &
1224	!$ACC HOST(sums_wsss_ws_l(nzb:nzt+1,0)) &
1225	!$ACC HOST(sums_salsa_ws_l(nzb:nzt+1,0))
1226
1227	!
1228	!-- If required, calculate radiative fluxes and heating rates
1229	IF ( radiation .AND. time_since_reference_point > skip_time_do_radiation ) THEN
1230
1231	time_radiation = time_radiation + dt_3d
1232
1233	IF ( time_radiation >= dt_radiation .OR. force_radiation_call ) THEN
1234
1235	CALL cpu_log( log_point(50), 'radiation', 'start' )
1236
1237	IF ( .NOT. force_radiation_call ) THEN
1238	time_radiation = time_radiation - dt_radiation
1239	ENDIF
1240
1241	!
1242	!-- Adjust the current time to the time step of the radiation model.
1243	!-- Needed since radiation is pre-calculated and stored only on apparent
1244	!-- solar positions
1245	time_since_reference_point_save = time_since_reference_point
1246	time_since_reference_point = REAL( FLOOR( time_since_reference_point / &
1247	dt_radiation ), wp ) * dt_radiation
1248
1249	CALL radiation_control
1250
1251	IF ( ( urban_surface .OR. land_surface ) .AND. radiation_interactions ) THEN
1252	CALL cpu_log( log_point_s(46), 'radiation_interaction', 'start' )
1253	CALL radiation_interaction
1254	CALL cpu_log( log_point_s(46), 'radiation_interaction', 'stop' )
1255	ENDIF
1256
1257	!
1258	!-- Return the current time to its original value
1259	time_since_reference_point = time_since_reference_point_save
1260
1261	CALL cpu_log( log_point(50), 'radiation', 'stop' )
1262
1263	ENDIF
1264	ENDIF
1265
1266
1267	!
1268	!-- 20200203 (ECC)
1269	!-- allows for emission update mode in legacy mode as well as on-demand mode
1270	!-- note that under on-demand mode emission update is no longer restricted to
1271	!-- an hourly frequency, but whenever the simulation time corresponds to an
1272	!-- inrement in emission timestamp value
1273
1274	!
1275	!-- If required, consider chemical emissions
1276
1277	IF ( air_chemistry .AND. emissions_anthropogenic ) THEN
1278
1279	IF ( emiss_read_legacy_mode ) THEN
1280	!
1281	!-- get hourly index and updates emission data when the hour is passed
1282
1283	CALL get_date_time( time_since_reference_point, hour=hour )
1284
1285	IF ( hour_call_emis /= hour ) THEN
1286
1287	CALL chem_emissions_setup( chem_emis_att, chem_emis, n_matched_vars )
1288	hour_call_emis = hour
1289
1290	ENDIF
1291
1292	ELSE
1293
1294	CALL chem_emissions_update_on_demand
1295
1296	ENDIF
1297
1298	ENDIF
1299
1300
1301	!
1302	!-- If required, consider aerosol emissions for the salsa model
1303	IF ( salsa ) THEN
1304	!
1305	!-- Call emission routine to update emissions if needed
1306	CALL salsa_emission_update
1307
1308	ENDIF
1309	!
1310	!-- If required, calculate indoor temperature, waste heat, heat flux
1311	!-- through wall, etc.
1312	!-- dt_indoor steers the frequency of the indoor model calculations.
1313	!-- Note, at first timestep indoor model is called, in order to provide
1314	!-- a waste heat flux.
1315	IF ( indoor_model ) THEN
1316
1317	time_indoor = time_indoor + dt_3d
1318
1319	IF ( time_indoor >= dt_indoor .OR. current_timestep_number == 0 ) THEN
1320
1321	time_indoor = time_indoor - dt_indoor
1322
1323	CALL cpu_log( log_point(76), 'indoor_model', 'start' )
1324	CALL im_main_heatcool
1325	CALL cpu_log( log_point(76), 'indoor_model', 'stop' )
1326
1327	ENDIF
1328	ENDIF
1329	!
1330	!-- Increase simulation time and output times
1331	nr_timesteps_this_run = nr_timesteps_this_run + 1
1332	current_timestep_number = current_timestep_number + 1
1333	simulated_time = simulated_time + dt_3d
1334	time_since_reference_point = simulated_time - coupling_start_time
1335	simulated_time_chr = time_to_string( time_since_reference_point )
1336
1337
1338	IF ( time_since_reference_point >= skip_time_data_output_av ) THEN
1339	time_do_av = time_do_av + dt_3d
1340	ENDIF
1341	IF ( time_since_reference_point >= skip_time_do2d_xy ) THEN
1342	time_do2d_xy = time_do2d_xy + dt_3d
1343	ENDIF
1344	IF ( time_since_reference_point >= skip_time_do2d_xz ) THEN
1345	time_do2d_xz = time_do2d_xz + dt_3d
1346	ENDIF
1347	IF ( time_since_reference_point >= skip_time_do2d_yz ) THEN
1348	time_do2d_yz = time_do2d_yz + dt_3d
1349	ENDIF
1350	IF ( time_since_reference_point >= skip_time_do3d ) THEN
1351	time_do3d = time_do3d + dt_3d
1352	ENDIF
1353	DO mid = 1, masks
1354	IF ( time_since_reference_point >= skip_time_domask(mid) ) THEN
1355	time_domask(mid)= time_domask(mid) + dt_3d
1356	ENDIF
1357	ENDDO
1358	IF ( time_since_reference_point >= skip_time_dosp ) THEN
1359	time_dosp = time_dosp + dt_3d
1360	ENDIF
1361	time_dots = time_dots + dt_3d
1362	IF ( .NOT. first_call_lpm ) THEN
1363	time_dopts = time_dopts + dt_3d
1364	ENDIF
1365	IF ( time_since_reference_point >= skip_time_dopr ) THEN
1366	time_dopr = time_dopr + dt_3d
1367	ENDIF
1368	time_dopr_listing = time_dopr_listing + dt_3d
1369	time_run_control = time_run_control + dt_3d
1370	!
1371	!-- Increment time-counter for surface output
1372	IF ( surface_output ) THEN
1373	IF ( time_since_reference_point >= skip_time_dosurf ) THEN
1374	time_dosurf = time_dosurf + dt_3d
1375	ENDIF
1376	IF ( time_since_reference_point >= skip_time_dosurf_av ) THEN
1377	time_dosurf_av = time_dosurf_av + dt_3d
1378	ENDIF
1379	ENDIF
1380	!
1381	!-- Increment time-counter for virtual measurements
1382	IF ( virtual_measurement .AND. vm_time_start <= time_since_reference_point ) THEN
1383	time_virtual_measurement = time_virtual_measurement + dt_3d
1384	ENDIF
1385
1386	!
1387	!-- Increment time-counter for wind turbine data output
1388	IF ( wind_turbine ) THEN
1389	time_wtm = time_wtm + dt_3d
1390	ENDIF
1391
1392	!
1393	!-- In case of synthetic turbulence generation and parametrized turbulence
1394	!-- information, update the time counter and if required, adjust the
1395	!-- STG to new atmospheric conditions.
1396	IF ( use_syn_turb_gen ) THEN
1397	IF ( parametrize_inflow_turbulence ) THEN
1398	time_stg_adjust = time_stg_adjust + dt_3d
1399	IF ( time_stg_adjust >= dt_stg_adjust ) THEN
1400	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'start' )
1401	CALL stg_adjust
1402	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'stop' )
1403	ENDIF
1404	ENDIF
1405	time_stg_call = time_stg_call + dt_3d
1406	ENDIF
1407
1408	!
1409	!-- Data exchange between coupled models
1410	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled .AND. .NOT. vnested ) THEN
1411	time_coupling = time_coupling + dt_3d
1412
1413	!
1414	!-- In case of model termination initiated by the local model
1415	!-- (terminate_coupled > 0), the coupler must be skipped because it would
1416	!-- cause an MPI intercomminucation hang.
1417	!-- If necessary, the coupler will be called at the beginning of the
1418	!-- next restart run.
1419	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
1420	CALL surface_coupler
1421	time_coupling = time_coupling - dt_coupling
1422	ENDDO
1423	ENDIF
1424
1425	!
1426	!-- Biometeorology calculation of stationary thermal indices
1427	!-- Todo (kanani): biometeorology needs own time_... treatment.
1428	!-- It might be that time_do2d_xy differs from time_do3d,
1429	!-- and then we might get trouble with the biomet output,
1430	!-- because we can have 2d and/or 3d biomet output!!
1431	IF ( biometeorology &
1432	.AND. ( ( time_do3d >= dt_do3d .AND. time_since_reference_point >= skip_time_do3d ) &
1433	.OR. &
1434	( time_do2d_xy >= dt_do2d_xy .AND. time_since_reference_point >= skip_time_do2d_xy ) &
1435	) ) THEN
1436	!
1437	!-- If required, do thermal comfort calculations
1438	IF ( thermal_comfort ) THEN
1439	CALL bio_calculate_thermal_index_maps ( .FALSE. )
1440	ENDIF
1441	!
1442	!-- If required, do UV exposure calculations
1443	IF ( uv_exposure ) THEN
1444	CALL bio_calculate_uv_exposure
1445	ENDIF
1446	ENDIF
1447
1448	!
1449	!-- Execute alle other module actions routunes
1450	CALL module_interface_actions( 'after_integration' )
1451
1452	!
1453	!-- If Galilei transformation is used, determine the distance that the
1454	!-- model has moved so far
1455	IF ( galilei_transformation ) THEN
1456	advected_distance_x = advected_distance_x + u_gtrans * dt_3d
1457	advected_distance_y = advected_distance_y + v_gtrans * dt_3d
1458	ENDIF
1459
1460	!
1461	!-- Check, if restart is necessary (because cpu-time is expiring or
1462	!-- because it is forced by user) and set stop flag
1463	!-- This call is skipped if the remote model has already initiated a restart.
1464	IF ( .NOT. terminate_run ) CALL check_for_restart
1465
1466	!
1467	!-- Carry out statistical analysis and output at the requested output times.
1468	!-- The MOD function is used for calculating the output time counters (like
1469	!-- time_dopr) in order to regard a possible decrease of the output time
1470	!-- interval in case of restart runs
1471
1472	!
1473	!-- Set a flag indicating that so far no statistics have been created
1474	!-- for this time step
1475	flow_statistics_called = .FALSE.
1476
1477	!
1478	!-- If required, call flow_statistics for averaging in time
1479	IF ( averaging_interval_pr /= 0.0_wp .AND. &
1480	( dt_dopr - time_dopr ) <= averaging_interval_pr .AND. &
1481	time_since_reference_point >= skip_time_dopr ) THEN
1482	time_dopr_av = time_dopr_av + dt_3d
1483	IF ( time_dopr_av >= dt_averaging_input_pr ) THEN
1484	do_sum = .TRUE.
1485	time_dopr_av = MOD( time_dopr_av, MAX( dt_averaging_input_pr, dt_3d ) )
1486	ENDIF
1487	ENDIF
1488	IF ( do_sum ) CALL flow_statistics
1489
1490	!
1491	!-- Sum-up 3d-arrays for later output of time-averaged 2d/3d/masked data
1492	IF ( averaging_interval /= 0.0_wp .AND. &
1493	( dt_data_output_av - time_do_av ) <= averaging_interval .AND. &
1494	time_since_reference_point >= skip_time_data_output_av ) &
1495	THEN
1496	time_do_sla = time_do_sla + dt_3d
1497	IF ( time_do_sla >= dt_averaging_input ) THEN
1498	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1499	CALL doq_calculate
1500
1501	CALL sum_up_3d_data
1502	average_count_3d = average_count_3d + 1
1503	time_do_sla = MOD( time_do_sla, MAX( dt_averaging_input, dt_3d ) )
1504	ENDIF
1505	ENDIF
1506	!
1507	!-- Average surface data
1508	IF ( surface_output ) THEN
1509	IF ( averaging_interval_surf /= 0.0_wp &
1510	.AND. ( dt_dosurf_av - time_dosurf_av ) <= averaging_interval_surf &
1511	.AND. time_since_reference_point >= skip_time_dosurf_av ) THEN
1512	IF ( time_dosurf_av >= dt_averaging_input ) THEN
1513	CALL surface_data_output_averaging
1514	average_count_surf = average_count_surf + 1
1515	ENDIF
1516	ENDIF
1517	ENDIF
1518
1519	!
1520	!-- Calculate spectra for time averaging
1521	IF ( averaging_interval_sp /= 0.0_wp .AND. ( dt_dosp - time_dosp ) <= averaging_interval_sp&
1522	.AND. time_since_reference_point >= skip_time_dosp ) THEN
1523	time_dosp_av = time_dosp_av + dt_3d
1524	IF ( time_dosp_av >= dt_averaging_input_pr ) THEN
1525	CALL calc_spectra
1526	time_dosp_av = MOD( time_dosp_av, MAX( dt_averaging_input_pr, dt_3d ) )
1527	ENDIF
1528	ENDIF
1529
1530	!
1531	!-- Call flight module and output data
1532	IF ( virtual_flight ) THEN
1533	CALL flight_measurement
1534	CALL data_output_flight
1535	ENDIF
1536	!
1537	!-- Take virtual measurements
1538	IF ( virtual_measurement .AND. time_virtual_measurement >= dt_virtual_measurement &
1539	.AND. vm_time_start <= time_since_reference_point ) THEN
1540	CALL vm_sampling
1541	CALL vm_data_output
1542	time_virtual_measurement = MOD( time_virtual_measurement, &
1543	MAX( dt_virtual_measurement, dt_3d ) )
1544	ENDIF
1545
1546	!
1547	!-- Output wind turbine data
1548	IF ( wind_turbine .AND. time_wtm >= dt_data_output_wtm ) THEN
1549	CALL wtm_data_output
1550	time_wtm = MOD( time_wtm, MAX( dt_data_output_wtm, dt_3d ) )
1551	ENDIF
1552
1553	!
1554	!-- Profile output (ASCII) on file
1555	IF ( time_dopr_listing >= dt_dopr_listing ) THEN
1556	CALL print_1d
1557	time_dopr_listing = MOD( time_dopr_listing, MAX( dt_dopr_listing, dt_3d ) )
1558	ENDIF
1559
1560	!
1561	!-- Graphic output for PROFIL
1562	IF ( time_dopr >= dt_dopr .AND. time_since_reference_point >= skip_time_dopr ) THEN
1563	IF ( dopr_n /= 0 ) CALL data_output_profiles
1564	time_dopr = MOD( time_dopr, MAX( dt_dopr, dt_3d ) )
1565	time_dopr_av = 0.0_wp ! due to averaging (see above)
1566	ENDIF
1567
1568	!
1569	!-- Graphic output for time series
1570	IF ( time_dots >= dt_dots ) THEN
1571	CALL data_output_tseries
1572	time_dots = MOD( time_dots, MAX( dt_dots, dt_3d ) )
1573	ENDIF
1574
1575	!
1576	!-- Output of spectra (formatted for use with PROFIL), in case of no
1577	!-- time averaging, spectra has to be calculated before
1578	IF ( time_dosp >= dt_dosp .AND. time_since_reference_point >= skip_time_dosp ) THEN
1579	IF ( average_count_sp == 0 ) CALL calc_spectra
1580	CALL data_output_spectra
1581	time_dosp = MOD( time_dosp, MAX( dt_dosp, dt_3d ) )
1582	ENDIF
1583
1584	!
1585	!-- 2d-data output (cross-sections)
1586	IF ( time_do2d_xy >= dt_do2d_xy .AND. time_since_reference_point >= skip_time_do2d_xy ) THEN
1587	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1588	CALL doq_calculate
1589
1590	CALL data_output_2d( 'xy', 0 )
1591	time_do2d_xy = MOD( time_do2d_xy, MAX( dt_do2d_xy, dt_3d ) )
1592	ENDIF
1593	IF ( time_do2d_xz >= dt_do2d_xz .AND. time_since_reference_point >= skip_time_do2d_xz ) THEN
1594	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1595
1596	CALL doq_calculate
1597	CALL data_output_2d( 'xz', 0 )
1598	time_do2d_xz = MOD( time_do2d_xz, MAX( dt_do2d_xz, dt_3d ) )
1599	ENDIF
1600	IF ( time_do2d_yz >= dt_do2d_yz .AND. time_since_reference_point >= skip_time_do2d_yz ) THEN
1601	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1602	CALL doq_calculate
1603
1604	CALL data_output_2d( 'yz', 0 )
1605	time_do2d_yz = MOD( time_do2d_yz, MAX( dt_do2d_yz, dt_3d ) )
1606	ENDIF
1607
1608	!
1609	!-- 3d-data output (volume data)
1610	IF ( time_do3d >= dt_do3d .AND. time_since_reference_point >= skip_time_do3d ) THEN
1611	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1612	CALL doq_calculate
1613
1614	CALL data_output_3d( 0 )
1615	time_do3d = MOD( time_do3d, MAX( dt_do3d, dt_3d ) )
1616	ENDIF
1617
1618	!
1619	!-- Masked data output
1620	DO mid = 1, masks
1621	IF ( time_domask(mid) >= dt_domask(mid) &
1622	.AND. time_since_reference_point >= skip_time_domask(mid) ) THEN
1623	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1624	CALL doq_calculate
1625
1626	CALL data_output_mask( 0, mid )
1627	time_domask(mid) = MOD( time_domask(mid), MAX( dt_domask(mid), dt_3d ) )
1628	ENDIF
1629	ENDDO
1630
1631	!
1632	!-- Output of time-averaged 2d/3d/masked data
1633	IF ( time_do_av >= dt_data_output_av &
1634	.AND. time_since_reference_point >= skip_time_data_output_av ) THEN
1635	CALL average_3d_data
1636	!
1637	!-- Udate thermal comfort indices based on updated averaged input
1638	IF ( biometeorology .AND. thermal_comfort ) THEN
1639	CALL bio_calculate_thermal_index_maps ( .TRUE. )
1640	ENDIF
1641	CALL data_output_2d( 'xy', 1 )
1642	CALL data_output_2d( 'xz', 1 )
1643	CALL data_output_2d( 'yz', 1 )
1644	CALL data_output_3d( 1 )
1645	DO mid = 1, masks
1646	CALL data_output_mask( 1, mid )
1647	ENDDO
1648	time_do_av = MOD( time_do_av, MAX( dt_data_output_av, dt_3d ) )
1649	ENDIF
1650	!
1651	!-- Output of surface data, instantaneous and averaged data
1652	IF ( surface_output ) THEN
1653	IF ( time_dosurf >= dt_dosurf .AND. time_since_reference_point >= skip_time_dosurf ) THEN
1654	CALL surface_data_output( 0 )
1655	time_dosurf = MOD( time_dosurf, MAX( dt_dosurf, dt_3d ) )
1656	ENDIF
1657	IF ( time_dosurf_av >= dt_dosurf_av .AND. time_since_reference_point >= skip_time_dosurf_av ) THEN
1658	CALL surface_data_output( 1 )
1659	time_dosurf_av = MOD( time_dosurf_av, MAX( dt_dosurf_av, dt_3d ) )
1660	ENDIF
1661	ENDIF
1662
1663	!
1664	!-- Output of particle time series
1665	IF ( particle_advection ) THEN
1666	IF ( time_dopts >= dt_dopts .OR. &
1667	( time_since_reference_point >= particle_advection_start .AND. &
1668	first_call_lpm ) ) THEN
1669	CALL lpm_data_output_ptseries
1670	time_dopts = MOD( time_dopts, MAX( dt_dopts, dt_3d ) )
1671	ENDIF
1672	ENDIF
1673
1674	!
1675	!-- If required, set the heat flux for the next time step to a random value
1676	IF ( constant_heatflux .AND. random_heatflux ) THEN
1677	IF ( surf_def_h(0)%ns >= 1 ) THEN
1678	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1679	CALL disturb_heatflux( surf_def_h(0) )
1680	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1681	ENDIF
1682	IF ( surf_lsm_h%ns >= 1 ) THEN
1683	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1684	CALL disturb_heatflux( surf_lsm_h )
1685	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1686	ENDIF
1687	IF ( surf_usm_h%ns >= 1 ) THEN
1688	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1689	CALL disturb_heatflux( surf_usm_h )
1690	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1691	ENDIF
1692	ENDIF
1693
1694	!
1695	!-- Execute alle other module actions routunes
1696	CALL module_interface_actions( 'after_timestep' )
1697
1698	!
1699	!-- Determine size of next time step. Save timestep dt_3d because it is
1700	!-- newly calculated in routine timestep, but required further below for
1701	!-- steering the run control output interval
1702	dt_3d_old = dt_3d
1703	CALL timestep
1704
1705	#if defined( __parallel )
1706	!
1707	!-- Synchronize the timestep in case of nested run.
1708	IF ( nested_run ) THEN
1709	!
1710	!-- Synchronize by unifying the time step.
1711	!-- Global minimum of all time-steps is used for all.
1712	CALL pmci_synchronize
1713	ENDIF
1714	#endif
1715
1716	!
1717	!-- Computation and output of run control parameters.
1718	!-- This is also done whenever perturbations have been imposed
1719	IF ( time_run_control >= dt_run_control .OR. &
1720	timestep_scheme(1:5) /= 'runge' .OR. disturbance_created ) &
1721	THEN
1722	CALL run_control
1723	IF ( time_run_control >= dt_run_control ) THEN
1724	time_run_control = MOD( time_run_control, MAX( dt_run_control, dt_3d_old ) )
1725	ENDIF
1726	ENDIF
1727
1728	!
1729	!-- Output elapsed simulated time in form of a progress bar on stdout
1730	IF ( myid == 0 ) CALL output_progress_bar
1731
1732	CALL cpu_log( log_point_s(10), 'timesteps', 'stop' )
1733
1734
1735	ENDDO ! time loop
1736
1737	#if defined( _OPENACC )
1738	CALL exit_surface_arrays
1739	#endif
1740	!$ACC END DATA
1741	!$ACC END DATA
1742	!$ACC END DATA
1743	!$ACC END DATA
1744	!$ACC END DATA
1745	!$ACC END DATA
1746	!$ACC END DATA
1747	!$ACC END DATA
1748
1749	#if defined( __parallel )
1750	!
1751	!-- Vertical nesting: Deallocate variables initialized for vertical nesting
1752	IF ( vnest_init ) CALL vnest_deallocate
1753	#endif
1754
1755	IF ( myid == 0 ) CALL finish_progress_bar
1756
1757	CALL location_message( 'atmosphere (and/or ocean) time-stepping', 'finished' )
1758
1759	END SUBROUTINE time_integration

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