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source: palm/trunk/SOURCE/time_integration.f90 @ 4822

Last change on this file since 4822 was 4804, checked in by suehring, 4 years ago
remove leftover write statement from debugging
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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 4804 2020-12-02 10:19:08Z raasch $
27	! Remove leftover write statement from debugging
28	!
29	! 4802 2020-11-30 14:16:31Z suehring
30	! Bugfix in time-control of indoor model at the very first time step
31	!
32	! 4732 2020-10-07 14:46:34Z schwenkel
33	! Add use statements for OPENACC
34	!
35	! 4731 2020-10-07 13:25:11Z schwenkel
36	! Move exchange_horiz from time_integration to modules
37	!
38	! 4671 2020-09-09 20:27:58Z pavelkrc
39	! Implementation of downward facing USM and LSM surfaces
40	!
41	! 4669 2020-09-09 13:43:47Z pavelkrc
42	! - Fix missing call of radiation after spinup
43	! - Fix calculation of force_radiation_call
44	! - Fix calculation of radiation times
45	!
46	! 4668 2020-09-09 13:00:16Z pavelkrc
47	! Improve debug messages during timestepping
48	!
49	! 4581 2020-06-29 08:49:58Z suehring
50	! Omit explicit pressure forcing via geostrophic wind components in case of
51	! mesoscale nesting.
52	!
53	! 4578 2020-06-25 15:43:32Z gronemeier
54	! bugfix: removed unused variables
55	!
56	! 4573 2020-06-24 13:08:47Z oliver.maas
57	! calculate pt(0) incrementally by using dt_3d instead of calculating it absolutely
58	! by using time_since_reference_point, because time_since_reference_point is set
59	! to zero for initializing_actions = 'cyclic_fill'
60	!
61	! 4565 2020-06-15 08:30:38Z oliver.maas
62	! added new surface temperature forcing method for bc_pt_b = 'dirichlet':
63	! surface temperature pt(0) can be linearly increased by pt_surface_heating_rate (in K/h)
64	!
65	! 4564 2020-06-12 14:03:36Z raasch
66	! Vertical nesting method of Huq et al. (2019) removed
67	!
68	! 4521 2020-05-06 11:39:49Z schwenkel
69	! Rename variable
70	!
71	! 4511 2020-04-30 12:20:40Z raasch
72	! chemistry decycling replaced by explicit setting of lateral boundary conditions
73	!
74	! 4508 2020-04-24 13:32:20Z raasch
75	! salsa decycling replaced by explicit setting of lateral boundary conditions
76	!
77	! 4502 2020-04-17 16:14:16Z schwenkel
78	! Implementation of ice microphysics
79	!
80	! 4472 2020-03-24 12:21:00Z Giersch
81	! OPENACC COPYIN directive for ddx and ddy added
82	!
83	! 4466 2020-03-20 16:14:41Z suehring
84	! Add advection fluxes to ACC copyin
85	!
86	! 4457 2020-03-11 14:20:43Z raasch
87	! use statement for exchange horiz added
88	!
89	! 4444 2020-03-05 15:59:50Z raasch
90	! bugfix: cpp-directives for serial mode added
91	!
92	! 4420 2020-02-24 14:13:56Z maronga
93	! Added output control for wind turbine model
94	!
95	! 4403 2020-02-12 13:08:46Z banzhafs
96	! Allowing both existing and on-demand emission read modes
97	!
98	! 4360 2020-01-07 11:25:50Z suehring
99	! Bugfix, hour_call_emis uninitialized at first call of time_integration
100	!
101	! 4346 2019-12-18 11:55:56Z motisi
102	! Introduction of wall_flags_total_0, which currently sets bits based on static
103	! topography information used in wall_flags_static_0
104	!
105	! 4329 2019-12-10 15:46:36Z motisi
106	! Renamed wall_flags_0 to wall_flags_static_0
107	!
108	! 4281 2019-10-29 15:15:39Z schwenkel
109	! Moved boundary conditions to module interface
110	!
111	! 4276 2019-10-28 16:03:29Z schwenkel
112	! Further modularization of lpm code components
113	!
114	! 4275 2019-10-28 15:34:55Z schwenkel
115	! Move call oft lpm to the end of intermediate timestep loop
116	!
117	! 4268 2019-10-17 11:29:38Z schwenkel
118	! Removing module specific boundary conditions an put them into their modules
119	!
120	! 4227 2019-09-10 18:04:34Z gronemeier
121	! implement new palm_date_time_mod
122	!
123	! 4226 2019-09-10 17:03:24Z suehring
124	! Changes in interface for the offline nesting
125	!
126	! 4182 2019-08-22 15:20:23Z scharf
127	! Corrected "Former revisions" section
128	!
129	! 4170 2019-08-19 17:12:31Z gronemeier
130	! copy diss, diss_p, tdiss_m to GPU
131	!
132	! 4144 2019-08-06 09:11:47Z raasch
133	! relational operators .EQ., .NE., etc. replaced by ==, /=, etc.
134	!
135	! 4126 2019-07-30 11:09:11Z gronemeier
136	! renamed routine to calculate uv exposure
137	!
138	! 4111 2019-07-22 18:16:57Z suehring
139	! advc_flags_1 / advc_flags_2 renamed to advc_flags_m / advc_flags_s
140	!
141	! 4069 2019-07-01 14:05:51Z Giersch
142	! Masked output running index mid has been introduced as a local variable to
143	! avoid runtime error (Loop variable has been modified) in time_integration
144	!
145	! 4064 2019-07-01 05:33:33Z gronemeier
146	! Moved call to radiation module out of intermediate time loop
147	!
148	! 4048 2019-06-21 21:00:21Z knoop
149	! Moved production_e_init call into turbulence_closure_mod
150	!
151	! 4047 2019-06-21 18:58:09Z knoop
152	! Added remainings of swap_timelevel upon its dissolution
153	!
154	! 4043 2019-06-18 16:59:00Z schwenkel
155	! Further LPM modularization
156	!
157	! 4039 2019-06-18 10:32:41Z suehring
158	! Rename subroutines in module for diagnostic quantities
159	!
160	! 4029 2019-06-14 14:04:35Z raasch
161	! exchange of ghost points and boundary conditions separated for chemical species and SALSA module,
162	! bugfix: decycling of chemistry species after nesting data transfer
163	!
164	! 4022 2019-06-12 11:52:39Z suehring
165	! Call synthetic turbulence generator at last RK3 substep right after boundary
166	! conditions are updated in offline nesting in order to assure that
167	! perturbations are always imposed
168	!
169	! 4017 2019-06-06 12:16:46Z schwenkel
170	! Mass (volume) flux correction included to ensure global mass conservation for child domains.
171	!
172	! 3994 2019-05-22 18:08:09Z suehring
173	! output of turbulence intensity added
174	!
175	! 3988 2019-05-22 11:32:37Z kanani
176	! Implement steerable output interval for virtual measurements
177	!
178	! 3968 2019-05-13 11:04:01Z suehring
179	! replace nspec_out with n_matched_vars
180	!
181	! 3929 2019-04-24 12:52:08Z banzhafs
182	! Reverse changes back from revision 3878: use chem_boundary_conds instead of
183	! chem_boundary_conds_decycle
184	!
185	!
186	! 3885 2019-04-11 11:29:34Z kanani
187	! Changes related to global restructuring of location messages and introduction
188	! of additional debug messages
189	!
190	! 3879 2019-04-08 20:25:23Z knoop
191	! Moved wtm_forces to module_interface_actions
192	!
193	! 3872 2019-04-08 15:03:06Z knoop
194	! Modifications made for salsa:
195	! - Call salsa_emission_update at each time step but do the checks within
196	! salsa_emission_update (i.e. skip_time_do_salsa >= time_since_reference_point
197	! and next_aero_emission_update <= time_since_reference_point ).
198	! - Renamed nbins --> nbins_aerosol, ncc_tot --> ncomponents_mass and
199	! ngast --> ngases_salsa and loop indices b, c and sg to ib, ic and ig
200	! - Apply nesting for salsa variables
201	! - Removed cpu_log calls speciffic for salsa.
202	!
203	! 3833 2019-03-28 15:04:04Z forkel
204	! added USE chem_gasphase_mod, replaced nspec by nspec since fixed compounds are not integrated
205	!
206	! 3820 2019-03-27 11:53:41Z forkel
207	! renamed do_emiss to emissions_anthropogenic (ecc)
208	!
209	!
210	! 3774 2019-03-04 10:52:49Z moh.hefny
211	! rephrase if statement to avoid unallocated array in case of
212	! nesting_offline is false (crashing during debug mode)
213	!
214	! 3761 2019-02-25 15:31:42Z raasch $
215	! module section re-formatted and openacc required variables moved to separate section,
216	! re-formatting to 100 char line width
217	!
218	! 3745 2019-02-15 18:57:56Z suehring
219	! Call indoor model after first timestep
220	!
221	! 3744 2019-02-15 18:38:58Z suehring
222	! - Moved call of bio_calculate_thermal_index_maps from biometeorology module to
223	! time_integration to make sure averaged input is updated before calculating.
224	!
225	! 3739 2019-02-13 08:05:17Z dom_dwd_user
226	! Removed everything related to "time_bio_results" as this is never used.
227	!
228	! 3724 2019-02-06 16:28:23Z kanani
229	! Correct double-used log_point_s unit
230	!
231	! 3719 2019-02-06 13:10:18Z kanani
232	! - removed wind_turbine cpu measurement, since same time is measured inside
233	! wtm_forces subroutine as special measures
234	! - moved the numerous vnest cpulog to special measures
235	! - extended radiation cpulog over entire radiation part,
236	! moved radiation_interactions cpulog to special measures
237	! - moved some cpu_log calls to this routine for better overview
238	!
239	! 3705 2019-01-29 19:56:39Z suehring
240	! Data output for virtual measurements added
241	!
242	! 3704 2019-01-29 19:51:41Z suehring
243	! Rename subroutines for surface-data output
244	!
245	! 3647 2019-01-02 14:10:44Z kanani
246	! Bugfix: add time_since_reference_point to IF clause for data_output calls
247	! (otherwise skip_time_* values don't come into affect with dt_do* = 0.0).
248	! Clean up indoor_model and biometeorology model call.
249	!
250	! Revision 1.1 1997/08/11 06:19:04 raasch
251	! Initial revision
252	!
253	!
254	! Description:
255	! ------------
256	!> Integration in time of the model equations, statistical analysis and graphic
257	!> output
258	!------------------------------------------------------------------------------!
259	SUBROUTINE time_integration
260
261
262	USE advec_ws, &
263	ONLY: ws_statistics
264
265	USE arrays_3d, &
266	ONLY: dzu, prho, pt, pt_init, q, &
267	q_init, ref_state, rho_ocean, tend, u, v, vpt
268
269	USE biometeorology_mod, &
270	ONLY: bio_calculate_thermal_index_maps, thermal_comfort, bio_calculate_uv_exposure, &
271	uv_exposure
272
273	USE bulk_cloud_model_mod, &
274	ONLY: bulk_cloud_model, calc_liquid_water_content
275
276	USE calc_mean_profile_mod, &
277	ONLY: calc_mean_profile
278
279	USE chem_emissions_mod, &
280	ONLY: chem_emissions_setup, chem_emissions_update_on_demand
281
282	USE chem_gasphase_mod, &
283	ONLY: nvar
284
285	USE chem_modules, &
286	ONLY: bc_cs_t_val, chem_species, emissions_anthropogenic, &
287	emiss_read_legacy_mode, n_matched_vars
288
289	USE control_parameters, &
290	ONLY: advected_distance_x, advected_distance_y, air_chemistry, average_count_3d, &
291	averaging_interval, averaging_interval_pr, bc_lr_cyc, bc_ns_cyc, bc_pt_t_val, &
292	bc_q_t_val, biometeorology, call_psolver_at_all_substeps, child_domain, &
293	constant_flux_layer, constant_heatflux, create_disturbances, &
294	dopr_n, constant_diffusion, coupling_mode, coupling_start_time, &
295	current_timestep_number, debug_output_timestep, debug_string, &
296	disturbance_created, disturbance_energy_limit, dist_range, &
297	do_sum, dt_3d, dt_averaging_input, dt_averaging_input_pr, dt_coupling, &
298	dt_data_output_av, dt_disturb, dt_do2d_xy, dt_do2d_xz, dt_do2d_yz, dt_do3d, &
299	dt_domask,dt_dopts, dt_dopr, dt_dopr_listing, dt_dots, dt_run_control, &
300	end_time, first_call_lpm, first_call_mas, galilei_transformation, humidity, &
301	indoor_model, intermediate_timestep_count, intermediate_timestep_count_max, &
302	land_surface, large_scale_forcing, loop_optimization, lsf_surf, lsf_vert, masks, &
303	multi_agent_system_end, multi_agent_system_start, nesting_offline, neutral, &
304	nr_timesteps_this_run, nudging, ocean_mode, pt_reference, &
305	pt_slope_offset, pt_surface_heating_rate, &
306	random_heatflux, run_coupled, salsa, &
307	simulated_time, simulated_time_chr, skip_time_do2d_xy, skip_time_do2d_xz, &
308	skip_time_do2d_yz, skip_time_do3d, skip_time_domask, skip_time_dopr, &
309	skip_time_data_output_av, sloping_surface, stop_dt, surface_output, &
310	terminate_coupled, terminate_run, timestep_scheme, time_coupling, time_do2d_xy, &
311	time_do2d_xz, time_do2d_yz, time_do3d, time_domask, time_dopr, time_dopr_av, &
312	time_dopr_listing, time_dopts, time_dosp, time_dosp_av, time_dots, time_do_av, &
313	time_do_sla, time_disturb, time_run_control, time_since_reference_point, &
314	timestep_count, turbulent_inflow, turbulent_outflow, urban_surface, &
315	use_initial_profile_as_reference, use_single_reference_value, u_gtrans, v_gtrans, &
316	virtual_flight, virtual_measurement, ws_scheme_mom, ws_scheme_sca
317
318	USE cpulog, &
319	ONLY: cpu_log, log_point, log_point_s
320
321	USE diagnostic_output_quantities_mod, &
322	ONLY: doq_calculate, &
323	timestep_number_at_prev_calc
324
325	USE exchange_horiz_mod, &
326	ONLY: exchange_horiz
327
328	USE flight_mod, &
329	ONLY: flight_measurement
330
331	USE grid_variables, &
332	ONLY: ddx, ddy
333
334	USE indices, &
335	ONLY: nx, nxl, nxlg, nxr, nxrg, nzb, nzt
336
337	USE indoor_model_mod, &
338	ONLY: dt_indoor, im_main_heatcool, time_indoor
339
340	USE interfaces
341
342	USE kinds
343
344	USE land_surface_model_mod, &
345	ONLY: lsm_boundary_condition, lsm_energy_balance, skip_time_do_lsm
346
347	USE lagrangian_particle_model_mod, &
348	ONLY: lpm_data_output_ptseries
349
350	USE lsf_nudging_mod, &
351	ONLY: calc_tnudge, ls_forcing_surf, ls_forcing_vert, nudge_ref
352
353	USE module_interface, &
354	ONLY: module_interface_actions, module_interface_swap_timelevel, &
355	module_interface_boundary_conditions, module_interface_exchange_horiz
356
357	USE multi_agent_system_mod, &
358	ONLY: agents_active, multi_agent_system
359
360	USE nesting_offl_mod, &
361	ONLY: nesting_offl_bc, &
362	nesting_offl_input, &
363	nesting_offl_interpolation_factor, &
364	nesting_offl_mass_conservation
365
366	USE netcdf_data_input_mod, &
367	ONLY: chem_emis, chem_emis_att
368
369	USE ocean_mod, &
370	ONLY: prho_reference
371
372	USE palm_date_time_mod, &
373	ONLY: get_date_time
374
375	USE particle_attributes, &
376	ONLY: particle_advection, particle_advection_start
377
378	USE pegrid
379
380	#if defined( __parallel )
381	USE pmc_interface, &
382	ONLY: nested_run, nesting_mode, pmci_boundary_conds, pmci_datatrans, pmci_synchronize, &
383	pmci_ensure_nest_mass_conservation, pmci_ensure_nest_mass_conservation_vertical, &
384	pmci_set_swaplevel
385	#endif
386
387	USE progress_bar, &
388	ONLY: finish_progress_bar, output_progress_bar
389
390	USE prognostic_equations_mod, &
391	ONLY: prognostic_equations_cache, prognostic_equations_vector
392
393	USE radiation_model_mod, &
394	ONLY: dt_radiation, force_radiation_call, radiation, radiation_control, &
395	radiation_interaction, radiation_interactions, skip_time_do_radiation, time_radiation
396
397	USE salsa_mod, &
398	ONLY: aerosol_number, aerosol_mass, bc_am_t_val, bc_an_t_val, bc_gt_t_val, &
399	nbins_aerosol, ncomponents_mass, ngases_salsa, &
400	salsa_boundary_conditions, salsa_emission_update, salsa_gas, salsa_gases_from_chem, &
401	skip_time_do_salsa
402
403	USE spectra_mod, &
404	ONLY: average_count_sp, averaging_interval_sp, calc_spectra, dt_dosp, skip_time_dosp
405
406	USE statistics, &
407	ONLY: flow_statistics_called, hom, pr_palm, sums_ls_l
408
409
410	USE surface_layer_fluxes_mod, &
411	ONLY: surface_layer_fluxes
412
413	USE surface_data_output_mod, &
414	ONLY: average_count_surf, averaging_interval_surf, dt_dosurf, dt_dosurf_av, &
415	surface_data_output, surface_data_output_averaging, skip_time_dosurf, &
416	skip_time_dosurf_av, time_dosurf, time_dosurf_av
417
418	USE surface_mod, &
419	ONLY: surf_def_h, surf_lsm_h, surf_usm_h
420
421	USE synthetic_turbulence_generator_mod, &
422	ONLY: dt_stg_call, dt_stg_adjust, parametrize_inflow_turbulence, stg_adjust, stg_main, &
423	time_stg_adjust, time_stg_call, use_syn_turb_gen
424
425	USE turbulence_closure_mod, &
426	ONLY: tcm_diffusivities
427
428	USE urban_surface_mod, &
429	ONLY: usm_boundary_condition, &
430	usm_energy_balance
431
432	USE virtual_measurement_mod, &
433	ONLY: dt_virtual_measurement, &
434	time_virtual_measurement, &
435	vm_data_output, &
436	vm_sampling, &
437	vm_time_start
438
439
440	USE wind_turbine_model_mod, &
441	ONLY: dt_data_output_wtm, time_wtm, wind_turbine, wtm_data_output
442
443	#if defined( _OPENACC )
444	USE arrays_3d, &
445	ONLY: d, dd2zu, ddzu, ddzw, &
446	diss, &
447	diss_p, &
448	diss_l_u, &
449	diss_l_v, &
450	diss_l_w, &
451	diss_s_u, &
452	diss_s_v, &
453	diss_s_w, &
454	drho_air, drho_air_zw, dzw, e, &
455	flux_l_u, &
456	flux_l_v, &
457	flux_l_w, &
458	flux_s_u, &
459	flux_s_v, &
460	flux_s_w, &
461	heatflux_output_conversion, &
462	e_p, &
463	pt_p, &
464	u_p, &
465	v_p, &
466	w_p, &
467	kh, km, momentumflux_output_conversion, nc, ni, nr, p, ptdf_x, ptdf_y, qc, qi, qr, rdf, &
468	rdf_sc, rho_air, rho_air_zw, s, tdiss_m, te_m, tpt_m, tu_m, tv_m, tw_m, ug, u_init, &
469	u_stokes_zu, vg, v_init, v_stokes_zu, w, zu
470
471	USE control_parameters, &
472	ONLY: tsc
473
474	USE indices, &
475	ONLY: advc_flags_m, advc_flags_s, nyn, nyng, nys, nysg, nz, nzb_max, wall_flags_total_0
476
477	USE statistics, &
478	ONLY: rmask, statistic_regions, sums_l, sums_l_l, sums_us2_ws_l, &
479	sums_wsus_ws_l, sums_vs2_ws_l, sums_wsvs_ws_l, sums_ws2_ws_l, sums_wspts_ws_l, &
480	sums_wsqs_ws_l, sums_wssas_ws_l, sums_wsqcs_ws_l, sums_wsqrs_ws_l, sums_wsncs_ws_l, &
481	sums_wsnrs_ws_l, sums_wsss_ws_l, weight_substep, sums_salsa_ws_l, sums_wsqis_ws_l, &
482	sums_wsnis_ws_l
483
484	USE surface_mod, &
485	ONLY: bc_h, enter_surface_arrays, exit_surface_arrays
486	#endif
487
488
489	IMPLICIT NONE
490
491	CHARACTER (LEN=9) :: time_to_string !<
492
493	INTEGER(iwp) :: hour !< hour of current time
494	INTEGER(iwp) :: hour_call_emis = -1 !< last hour where emission was called
495	INTEGER(iwp) :: ib !< index for aerosol size bins
496	INTEGER(iwp) :: ic !< index for aerosol mass bins
497	INTEGER(iwp) :: icc !< additional index for aerosol mass bins
498	INTEGER(iwp) :: ig !< index for salsa gases
499	INTEGER(iwp) :: mid !< masked output running index
500	INTEGER(iwp) :: n !< loop counter for chemistry species
501
502	REAL(wp) :: dt_3d_old !< temporary storage of timestep to be used for
503	!< steering of run control output interval
504	REAL(wp) :: time_since_reference_point_save !< original value of
505	!< time_since_reference_point
506
507
508	!
509	!-- Copy data from arrays_3d
510	!$ACC DATA &
511	!$ACC COPY(d(nzb+1:nzt,nys:nyn,nxl:nxr)) &
512	!$ACC COPY(diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
513	!$ACC COPY(e(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
514	!$ACC COPY(u(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
515	!$ACC COPY(v(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
516	!$ACC COPY(w(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
517	!$ACC COPY(kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
518	!$ACC COPY(km(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
519	!$ACC COPY(p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
520	!$ACC COPY(pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
521
522	!$ACC DATA &
523	!$ACC COPYIN(diss_l_u(0:nz+1,nys:nyn,0), flux_l_u(0:nz+1,nys:nyn,0)) &
524	!$ACC COPYIN(diss_l_v(0:nz+1,nys:nyn,0), flux_l_v(0:nz+1,nys:nyn,0)) &
525	!$ACC COPYIN(diss_l_w(0:nz+1,nys:nyn,0), flux_l_w(0:nz+1,nys:nyn,0)) &
526	!$ACC COPYIN(diss_s_u(0:nz+1,0), flux_s_u(0:nz+1,0)) &
527	!$ACC COPYIN(diss_s_v(0:nz+1,0), flux_s_v(0:nz+1,0)) &
528	!$ACC COPYIN(diss_s_w(0:nz+1,0), flux_s_w(0:nz+1,0)) &
529	!$ACC COPY(diss_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
530	!$ACC COPY(e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
531	!$ACC COPY(u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
532	!$ACC COPY(v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
533	!$ACC COPY(w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
534	!$ACC COPY(pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
535	!$ACC COPY(tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
536	!$ACC COPY(tdiss_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
537	!$ACC COPY(te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
538	!$ACC COPY(tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
539	!$ACC COPY(tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
540	!$ACC COPY(tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
541	!$ACC COPY(tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
542
543	!$ACC DATA &
544	!$ACC COPYIN(rho_air(nzb:nzt+1), drho_air(nzb:nzt+1)) &
545	!$ACC COPYIN(rho_air_zw(nzb:nzt+1), drho_air_zw(nzb:nzt+1)) &
546	!$ACC COPYIN(zu(nzb:nzt+1)) &
547	!$ACC COPYIN(dzu(1:nzt+1), dzw(1:nzt+1)) &
548	!$ACC COPYIN(ddzu(1:nzt+1), dd2zu(1:nzt)) &
549	!$ACC COPYIN(ddzw(1:nzt+1)) &
550	!$ACC COPYIN(heatflux_output_conversion(nzb:nzt+1)) &
551	!$ACC COPYIN(momentumflux_output_conversion(nzb:nzt+1)) &
552	!$ACC COPYIN(rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt)) &
553	!$ACC COPYIN(ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng)) &
554	!$ACC COPYIN(ref_state(0:nz+1)) &
555	!$ACC COPYIN(u_init(0:nz+1), v_init(0:nz+1)) &
556	!$ACC COPYIN(u_stokes_zu(nzb:nzt+1), v_stokes_zu(nzb:nzt+1)) &
557	!$ACC COPYIN(pt_init(0:nz+1)) &
558	!$ACC COPYIN(ug(0:nz+1), vg(0:nz+1))
559
560	!
561	!-- Copy data from control_parameters
562	!$ACC DATA &
563	!$ACC COPYIN(tsc(1:5))
564
565	!
566	!-- Copy data from grid_variables
567	!$ACC DATA &
568	!$ACC COPYIN(ddx, ddy)
569
570	!
571	!-- Copy data from indices
572	!$ACC DATA &
573	!$ACC COPYIN(advc_flags_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
574	!$ACC COPYIN(advc_flags_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
575	!$ACC COPYIN(wall_flags_total_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
576
577	!
578	!-- Copy data from surface_mod
579	!$ACC DATA &
580	!$ACC COPYIN(bc_h(0:1)) &
581	!$ACC COPYIN(bc_h(0)%i(1:bc_h(0)%ns)) &
582	!$ACC COPYIN(bc_h(0)%j(1:bc_h(0)%ns)) &
583	!$ACC COPYIN(bc_h(0)%k(1:bc_h(0)%ns)) &
584	!$ACC COPYIN(bc_h(1)%i(1:bc_h(1)%ns)) &
585	!$ACC COPYIN(bc_h(1)%j(1:bc_h(1)%ns)) &
586	!$ACC COPYIN(bc_h(1)%k(1:bc_h(1)%ns))
587
588	!
589	!-- Copy data from statistics
590	!$ACC DATA &
591	!$ACC COPYIN(hom(0:nz+1,1:2,1:4,0)) &
592	!$ACC COPYIN(rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions)) &
593	!$ACC COPYIN(weight_substep(1:intermediate_timestep_count_max)) &
594	!$ACC COPY(sums_l(nzb:nzt+1,1:pr_palm,0)) &
595	!$ACC COPY(sums_l_l(nzb:nzt+1,0:statistic_regions,0)) &
596	!$ACC COPY(sums_us2_ws_l(nzb:nzt+1,0)) &
597	!$ACC COPY(sums_wsus_ws_l(nzb:nzt+1,0)) &
598	!$ACC COPY(sums_vs2_ws_l(nzb:nzt+1,0)) &
599	!$ACC COPY(sums_wsvs_ws_l(nzb:nzt+1,0)) &
600	!$ACC COPY(sums_ws2_ws_l(nzb:nzt+1,0)) &
601	!$ACC COPY(sums_wspts_ws_l(nzb:nzt+1,0)) &
602	!$ACC COPY(sums_wssas_ws_l(nzb:nzt+1,0)) &
603	!$ACC COPY(sums_wsqs_ws_l(nzb:nzt+1,0)) &
604	!$ACC COPY(sums_wsqcs_ws_l(nzb:nzt+1,0)) &
605	!$ACC COPY(sums_wsqis_ws_l(nzb:nzt+1,0)) &
606	!$ACC COPY(sums_wsqrs_ws_l(nzb:nzt+1,0)) &
607	!$ACC COPY(sums_wsncs_ws_l(nzb:nzt+1,0)) &
608	!$ACC COPY(sums_wsnis_ws_l(nzb:nzt+1,0)) &
609	!$ACC COPY(sums_wsnrs_ws_l(nzb:nzt+1,0)) &
610	!$ACC COPY(sums_wsss_ws_l(nzb:nzt+1,0)) &
611	!$ACC COPY(sums_salsa_ws_l(nzb:nzt+1,0))
612
613	!
614	!-- Next statement is to avoid compiler warnings about unused variables. Please
615	!-- remove in case that you are using them. ddx and ddy need to be defined in
616	!-- time_integration because of ACC COPYIN directive.
617	ddx = ddx
618	ddy = ddy
619
620	#if defined( _OPENACC )
621	CALL enter_surface_arrays
622	#endif
623
624	!
625	!-- At beginning determine the first time step
626	CALL timestep
627
628	#if defined( __parallel )
629	!
630	!-- Synchronize the timestep in case of nested run.
631	IF ( nested_run ) THEN
632	!
633	!-- Synchronization by unifying the time step.
634	!-- Global minimum of all time-steps is used for all.
635	CALL pmci_synchronize
636	ENDIF
637	#endif
638
639	!
640	!-- Determine and print out the run control quantities before the first time
641	!-- step of this run. For the initial run, some statistics (e.g. divergence)
642	!-- need to be determined first --> CALL flow_statistics at the beginning of
643	!-- run_control
644	CALL run_control
645	!
646	!-- Data exchange between coupled models in case that a call has been omitted
647	!-- at the end of the previous run of a job chain.
648	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled ) THEN
649	!
650	!-- In case of model termination initiated by the local model the coupler
651	!-- must not be called because this would again cause an MPI hang.
652	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
653	CALL surface_coupler
654	time_coupling = time_coupling - dt_coupling
655	ENDDO
656	IF (time_coupling == 0.0_wp .AND. time_since_reference_point < dt_coupling ) THEN
657	time_coupling = time_since_reference_point
658	ENDIF
659	ENDIF
660
661	CALL location_message( 'atmosphere (and/or ocean) time-stepping', 'start' )
662	!
663	!-- Start of the time loop
664	DO WHILE ( simulated_time < end_time .AND. .NOT. stop_dt .AND. .NOT. terminate_run )
665
666	CALL cpu_log( log_point_s(10), 'timesteps', 'start' )
667
668	IF ( debug_output_timestep ) THEN
669	WRITE( debug_string, * ) 'time_integration', simulated_time
670	CALL debug_message( debug_string, 'start' )
671	ENDIF
672
673	!
674	!-- Determine ug, vg and w_subs in dependence on data from external file
675	!-- LSF_DATA
676	IF ( large_scale_forcing .AND. lsf_vert ) THEN
677	CALL ls_forcing_vert ( simulated_time )
678	sums_ls_l = 0.0_wp
679	ENDIF
680
681	!
682	!-- Set pt_init and q_init to the current profiles taken from
683	!-- NUDGING_DATA
684	IF ( nudging ) THEN
685	CALL nudge_ref ( simulated_time )
686	!
687	!-- Store temperature gradient at the top boundary for possible Neumann
688	!-- boundary condition
689	bc_pt_t_val = ( pt_init(nzt+1) - pt_init(nzt) ) / dzu(nzt+1)
690	bc_q_t_val = ( q_init(nzt+1) - q_init(nzt) ) / dzu(nzt+1)
691	IF ( air_chemistry ) THEN
692	DO n = 1, nvar
693	bc_cs_t_val = ( chem_species(n)%conc_pr_init(nzt+1) &
694	- chem_species(n)%conc_pr_init(nzt) ) &
695	/ dzu(nzt+1)
696	ENDDO
697	ENDIF
698	IF ( salsa .AND. time_since_reference_point >= skip_time_do_salsa ) THEN
699	DO ib = 1, nbins_aerosol
700	bc_an_t_val = ( aerosol_number(ib)%init(nzt+1) - aerosol_number(ib)%init(nzt) ) / &
701	dzu(nzt+1)
702	DO ic = 1, ncomponents_mass
703	icc = ( ic - 1 ) * nbins_aerosol + ib
704	bc_am_t_val = ( aerosol_mass(icc)%init(nzt+1) - aerosol_mass(icc)%init(nzt) ) /&
705	dzu(nzt+1)
706	ENDDO
707	ENDDO
708	IF ( .NOT. salsa_gases_from_chem ) THEN
709	DO ig = 1, ngases_salsa
710	bc_gt_t_val = ( salsa_gas(ig)%init(nzt+1) - salsa_gas(ig)%init(nzt) ) / &
711	dzu(nzt+1)
712	ENDDO
713	ENDIF
714	ENDIF
715	ENDIF
716	!
717	!-- Input of boundary data.
718	IF ( nesting_offline ) CALL nesting_offl_input
719	!
720	!-- Execute all other module actions routines
721	CALL module_interface_actions( 'before_timestep' )
722
723	!
724	!-- Start of intermediate step loop
725	intermediate_timestep_count = 0
726	DO WHILE ( intermediate_timestep_count < intermediate_timestep_count_max )
727
728	intermediate_timestep_count = intermediate_timestep_count + 1
729
730	!
731	!-- Set the steering factors for the prognostic equations which depend
732	!-- on the timestep scheme
733	CALL timestep_scheme_steering
734
735	!
736	!-- Calculate those variables needed in the tendency terms which need
737	!-- global communication
738	IF ( .NOT. use_single_reference_value .AND. .NOT. use_initial_profile_as_reference ) &
739	THEN
740	!
741	!-- Horizontally averaged profiles to be used as reference state in
742	!-- buoyancy terms (WARNING: only the respective last call of
743	!-- calc_mean_profile defines the reference state!)
744	IF ( .NOT. neutral ) THEN
745	CALL calc_mean_profile( pt, 4 )
746	ref_state(:) = hom(:,1,4,0) ! this is used in the buoyancy term
747	ENDIF
748	IF ( ocean_mode ) THEN
749	CALL calc_mean_profile( rho_ocean, 64 )
750	ref_state(:) = hom(:,1,64,0)
751	ENDIF
752	IF ( humidity ) THEN
753	CALL calc_mean_profile( vpt, 44 )
754	ref_state(:) = hom(:,1,44,0)
755	ENDIF
756	!
757	!-- Assure that ref_state does not become zero at any level
758	!-- ( might be the case if a vertical level is completely occupied
759	!-- with topography ).
760	ref_state = MERGE( MAXVAL(ref_state), ref_state, ref_state == 0.0_wp )
761	ENDIF
762
763	IF ( ( ws_scheme_mom .OR. ws_scheme_sca ) .AND. intermediate_timestep_count == 1 ) &
764	THEN
765	CALL ws_statistics
766	ENDIF
767	!
768	!-- In case of nudging calculate current nudging time scale and horizontal
769	!-- means of u, v, pt and q
770	IF ( nudging ) THEN
771	CALL calc_tnudge( simulated_time )
772	CALL calc_mean_profile( u, 1 )
773	CALL calc_mean_profile( v, 2 )
774	CALL calc_mean_profile( pt, 4 )
775	CALL calc_mean_profile( q, 41 )
776	ENDIF
777	!
778	!-- Execute all other module actions routines
779	CALL module_interface_actions( 'before_prognostic_equations' )
780	!
781	!-- Solve the prognostic equations. A fast cache optimized version with
782	!-- only one single loop is used in case of Piascek-Williams advection
783	!-- scheme. NEC vector machines use a different version, because
784	!-- in the other versions a good vectorization is prohibited due to
785	!-- inlining problems.
786	IF ( loop_optimization == 'cache' ) THEN
787	CALL prognostic_equations_cache
788	ELSEIF ( loop_optimization == 'vector' ) THEN
789	CALL prognostic_equations_vector
790	ENDIF
791
792	!
793	!-- Movement of agents in multi agent system
794	IF ( agents_active .AND. time_since_reference_point >= multi_agent_system_start .AND. &
795	time_since_reference_point <= multi_agent_system_end .AND. &
796	intermediate_timestep_count == 1 ) &
797	THEN
798	CALL multi_agent_system
799	first_call_mas = .FALSE.
800	ENDIF
801
802	!
803	!-- Exchange of ghost points (lateral boundary conditions)
804	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'start' )
805
806	CALL module_interface_exchange_horiz( 'after_prognostic_equation' )
807
808	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'stop' )
809
810	!
811	!-- Boundary conditions for the prognostic quantities (except of the
812	!-- velocities at the outflow in case of a non-cyclic lateral wall) and
813	!-- boundary conditions for module-specific variables
814	CALL module_interface_boundary_conditions
815
816	!
817	!-- Incrementing timestep counter
818	timestep_count = timestep_count + 1
819
820	CALL cpu_log( log_point(28), 'swap_timelevel', 'start' )
821	!
822	!-- Set the swap level for all modules
823	CALL module_interface_swap_timelevel( MOD( timestep_count, 2) )
824
825	#if defined( __parallel )
826	!
827	!-- Set the swap level for steering the pmc data transfer
828	IF ( nested_run ) CALL pmci_set_swaplevel( MOD( timestep_count, 2) + 1 ) !> @todo: why the +1 ?
829	#endif
830
831	CALL cpu_log( log_point(28), 'swap_timelevel', 'stop' )
832
833	#if defined( __parallel )
834	IF ( nested_run ) THEN
835
836	CALL cpu_log( log_point(60), 'nesting', 'start' )
837	!
838	!-- Domain nesting. The data transfer subroutines pmci_parent_datatrans
839	!-- and pmci_child_datatrans are called inside the wrapper
840	!-- subroutine pmci_datatrans according to the control parameters
841	!-- nesting_mode and nesting_datatransfer_mode.
842	!-- TO_DO: why is nesting_mode given as a parameter here?
843	CALL pmci_datatrans( nesting_mode )
844
845	IF ( TRIM( nesting_mode ) == 'two-way' .OR. nesting_mode == 'vertical' ) THEN
846
847	CALL cpu_log( log_point_s(92), 'exchange-horiz-nest', 'start' )
848	!
849	!-- Exchange_horiz is needed for all parent-domains after the
850	!-- anterpolation
851	CALL module_interface_exchange_horiz( 'after_anterpolation' )
852
853	CALL cpu_log( log_point_s(92), 'exchange-horiz-nest', 'stop' )
854
855	ENDIF
856
857	!
858	!-- Set boundary conditions again after interpolation and anterpolation.
859	CALL pmci_boundary_conds
860
861	CALL cpu_log( log_point(60), 'nesting', 'stop' )
862
863	ENDIF
864	#endif
865
866	!
867	!-- Temperature offset must be imposed at cyclic boundaries in x-direction
868	!-- when a sloping surface is used
869	IF ( sloping_surface ) THEN
870	IF ( nxl == 0 ) pt(:,:,nxlg:nxl-1) = pt(:,:,nxlg:nxl-1) - pt_slope_offset
871	IF ( nxr == nx ) pt(:,:,nxr+1:nxrg) = pt(:,:,nxr+1:nxrg) + pt_slope_offset
872	ENDIF
873
874	!
875	!-- Increase temperature pt(0) according to pt_surface_heating_rate (convert from K/h to K/s)
876	IF ( pt_surface_heating_rate /= 0.0_wp .AND. intermediate_timestep_count == 1 ) THEN
877	pt(0,:,:) = pt(0,:,:) + dt_3d * pt_surface_heating_rate / 3600.0_wp
878	ENDIF
879
880	!
881	!-- Impose a turbulent inflow using the recycling method
882	IF ( turbulent_inflow ) CALL inflow_turbulence
883
884	!
885	!-- Set values at outflow boundary using the special outflow condition
886	IF ( turbulent_outflow ) CALL outflow_turbulence
887
888	!
889	!-- Impose a random perturbation on the horizontal velocity field
890	IF ( create_disturbances .AND. ( call_psolver_at_all_substeps .AND. &
891	intermediate_timestep_count == intermediate_timestep_count_max ) &
892	.OR. ( .NOT. call_psolver_at_all_substeps .AND. intermediate_timestep_count == 1 ) ) &
893	THEN
894	time_disturb = time_disturb + dt_3d
895	IF ( time_disturb >= dt_disturb ) THEN
896	IF ( disturbance_energy_limit /= 0.0_wp .AND. &
897	hom(nzb+5,1,pr_palm,0) < disturbance_energy_limit ) THEN
898	CALL disturb_field( 'u', tend, u )
899	CALL disturb_field( 'v', tend, v )
900	ELSEIF ( ( .NOT. bc_lr_cyc .OR. .NOT. bc_ns_cyc ) &
901	.AND. .NOT. child_domain .AND. .NOT. nesting_offline ) &
902	THEN
903	!
904	!-- Runs with a non-cyclic lateral wall need perturbations
905	!-- near the inflow throughout the whole simulation
906	dist_range = 1
907	CALL disturb_field( 'u', tend, u )
908	CALL disturb_field( 'v', tend, v )
909	dist_range = 0
910	ENDIF
911	time_disturb = time_disturb - dt_disturb
912	ENDIF
913	ENDIF
914
915	!
916	!-- Map forcing data derived from larger scale model onto domain
917	!-- boundaries. Further, update geostrophic wind components.
918	IF ( nesting_offline .AND. intermediate_timestep_count == &
919	intermediate_timestep_count_max ) THEN
920	!-- Determine interpolation factor before boundary conditions and geostrophic wind
921	!-- is updated.
922	CALL nesting_offl_interpolation_factor
923	CALL nesting_offl_bc
924	! CALL nesting_offl_geostrophic_wind
925	ENDIF
926	!
927	!-- Impose a turbulent inflow using synthetic generated turbulence.
928	IF ( use_syn_turb_gen .AND. &
929	intermediate_timestep_count == intermediate_timestep_count_max ) THEN
930	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'start' )
931	CALL stg_main
932	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'stop' )
933	ENDIF
934	!
935	!-- Ensure mass conservation. This need to be done after imposing
936	!-- synthetic turbulence and top boundary condition for pressure is set to
937	!-- Neumann conditions.
938	!-- Is this also required in case of Dirichlet?
939	IF ( nesting_offline ) CALL nesting_offl_mass_conservation
940	!
941	!-- Reduce the velocity divergence via the equation for perturbation
942	!-- pressure.
943	IF ( intermediate_timestep_count == 1 .OR. call_psolver_at_all_substeps ) THEN
944
945	#if defined( __parallel )
946	!
947	!-- Mass (volume) flux correction to ensure global mass conservation for child domains.
948	IF ( child_domain ) THEN
949	IF ( nesting_mode == 'vertical' ) THEN
950	CALL pmci_ensure_nest_mass_conservation_vertical
951	ELSE
952	CALL pmci_ensure_nest_mass_conservation
953	ENDIF
954	ENDIF
955	#endif
956	CALL pres
957
958	ENDIF
959	!
960	!-- Particle transport/physics with the Lagrangian particle model
961	!-- (only once during intermediate steps, because it uses an Euler-step)
962	!-- ### particle model should be moved before prognostic_equations, in order
963	!-- to regard droplet interactions directly
964
965	CALL module_interface_actions( 'after_pressure_solver' )
966	!
967	!-- Interaction of droplets with temperature and mixing ratio.
968	!-- Droplet condensation and evaporation is calculated within
969	!-- advec_particles.
970	!
971	!-- If required, compute liquid water content
972	IF ( bulk_cloud_model ) THEN
973	CALL calc_liquid_water_content
974	ENDIF
975	!
976	!-- If required, compute virtual potential temperature
977	IF ( humidity ) THEN
978	CALL compute_vpt
979	ENDIF
980
981	!
982	!-- Compute the diffusion quantities
983	IF ( .NOT. constant_diffusion ) THEN
984
985	!
986	!-- Determine surface fluxes shf and qsws and surface values
987	!-- pt_surface and q_surface in dependence on data from external
988	!-- file LSF_DATA respectively
989	IF ( ( large_scale_forcing .AND. lsf_surf ) .AND. &
990	intermediate_timestep_count == intermediate_timestep_count_max ) &
991	THEN
992	CALL ls_forcing_surf( simulated_time )
993	ENDIF
994
995	!
996	!-- First the vertical (and horizontal) fluxes in the surface
997	!-- (constant flux) layer are computed
998	IF ( constant_flux_layer ) THEN
999	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'start' )
1000	CALL surface_layer_fluxes
1001	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'stop' )
1002	ENDIF
1003	!
1004	!-- If required, solve the energy balance for the surface and run soil
1005	!-- model. Call for horizontal as well as vertical surfaces
1006	IF ( land_surface .AND. time_since_reference_point >= skip_time_do_lsm) THEN
1007
1008	CALL cpu_log( log_point(54), 'land_surface', 'start' )
1009	CALL lsm_energy_balance( .FALSE. )
1010
1011	!
1012	!-- At the end, set boundary conditons for potential temperature
1013	!-- and humidity after running the land-surface model. This
1014	!-- might be important for the nesting, where arrays are transfered.
1015	CALL lsm_boundary_condition
1016
1017
1018	CALL cpu_log( log_point(54), 'land_surface', 'stop' )
1019	ENDIF
1020	!
1021	!-- If required, solve the energy balance for urban surfaces and run
1022	!-- the material heat model
1023	IF (urban_surface) THEN
1024	CALL cpu_log( log_point(74), 'urban_surface', 'start' )
1025	CALL usm_energy_balance( .FALSE. )
1026
1027	!
1028	!-- At the end, set boundary conditons for potential temperature
1029	!-- and humidity after running the urban-surface model. This
1030	!-- might be important for the nesting, where arrays are transfered.
1031	CALL usm_boundary_condition
1032
1033	CALL cpu_log( log_point(74), 'urban_surface', 'stop' )
1034	ENDIF
1035	!
1036	!-- Compute the diffusion coefficients
1037	CALL cpu_log( log_point(17), 'diffusivities', 'start' )
1038	IF ( .NOT. humidity ) THEN
1039	IF ( ocean_mode ) THEN
1040	CALL tcm_diffusivities( prho, prho_reference )
1041	ELSE
1042	CALL tcm_diffusivities( pt, pt_reference )
1043	ENDIF
1044	ELSE
1045	CALL tcm_diffusivities( vpt, pt_reference )
1046	ENDIF
1047	CALL cpu_log( log_point(17), 'diffusivities', 'stop' )
1048
1049	ENDIF
1050
1051	ENDDO ! Intermediate step loop
1052
1053	!
1054	!-- Will be used at some point by flow_statistics.
1055	!$ACC UPDATE &
1056	!$ACC HOST(sums_l_l(nzb:nzt+1,0:statistic_regions,0)) &
1057	!$ACC HOST(sums_us2_ws_l(nzb:nzt+1,0)) &
1058	!$ACC HOST(sums_wsus_ws_l(nzb:nzt+1,0)) &
1059	!$ACC HOST(sums_vs2_ws_l(nzb:nzt+1,0)) &
1060	!$ACC HOST(sums_wsvs_ws_l(nzb:nzt+1,0)) &
1061	!$ACC HOST(sums_ws2_ws_l(nzb:nzt+1,0)) &
1062	!$ACC HOST(sums_wspts_ws_l(nzb:nzt+1,0)) &
1063	!$ACC HOST(sums_wssas_ws_l(nzb:nzt+1,0)) &
1064	!$ACC HOST(sums_wsqs_ws_l(nzb:nzt+1,0)) &
1065	!$ACC HOST(sums_wsqcs_ws_l(nzb:nzt+1,0)) &
1066	!$ACC HOST(sums_wsqis_ws_l(nzb:nzt+1,0)) &
1067	!$ACC HOST(sums_wsqrs_ws_l(nzb:nzt+1,0)) &
1068	!$ACC HOST(sums_wsncs_ws_l(nzb:nzt+1,0)) &
1069	!$ACC HOST(sums_wsnis_ws_l(nzb:nzt+1,0)) &
1070	!$ACC HOST(sums_wsnrs_ws_l(nzb:nzt+1,0)) &
1071	!$ACC HOST(sums_wsss_ws_l(nzb:nzt+1,0)) &
1072	!$ACC HOST(sums_salsa_ws_l(nzb:nzt+1,0))
1073
1074	!
1075	!-- If required, calculate radiative fluxes and heating rates
1076	IF ( radiation .AND. time_since_reference_point >= skip_time_do_radiation ) THEN
1077
1078	time_radiation = time_radiation + dt_3d
1079
1080	IF ( time_radiation >= dt_radiation .OR. force_radiation_call ) THEN
1081
1082	CALL cpu_log( log_point(50), 'radiation', 'start' )
1083
1084	IF ( time_radiation >= dt_radiation ) THEN
1085	time_radiation = time_radiation - dt_radiation
1086	ENDIF
1087
1088	!
1089	!-- Adjust the current time to the time step of the radiation model.
1090	!-- Needed since radiation is pre-calculated and stored only on apparent
1091	!-- solar positions
1092	time_since_reference_point_save = time_since_reference_point
1093	time_since_reference_point = time_since_reference_point - &
1094	MODULO(time_since_reference_point, dt_radiation)
1095
1096	CALL radiation_control
1097
1098	IF ( ( urban_surface .OR. land_surface ) .AND. radiation_interactions ) THEN
1099	CALL cpu_log( log_point_s(46), 'radiation_interaction', 'start' )
1100	CALL radiation_interaction
1101	CALL cpu_log( log_point_s(46), 'radiation_interaction', 'stop' )
1102	ENDIF
1103
1104	!
1105	!-- Return the current time to its original value
1106	time_since_reference_point = time_since_reference_point_save
1107	!
1108	!-- Reset forcing of radiation call
1109	force_radiation_call = .FALSE.
1110
1111	CALL cpu_log( log_point(50), 'radiation', 'stop' )
1112
1113	ENDIF
1114	ENDIF
1115
1116
1117	!
1118	!-- 20200203 (ECC)
1119	!-- allows for emission update mode in legacy mode as well as on-demand mode
1120	!-- note that under on-demand mode emission update is no longer restricted to
1121	!-- an hourly frequency, but whenever the simulation time corresponds to an
1122	!-- inrement in emission timestamp value
1123
1124	!
1125	!-- If required, consider chemical emissions
1126
1127	IF ( air_chemistry .AND. emissions_anthropogenic ) THEN
1128
1129	IF ( emiss_read_legacy_mode ) THEN
1130	!
1131	!-- get hourly index and updates emission data when the hour is passed
1132
1133	CALL get_date_time( time_since_reference_point, hour=hour )
1134
1135	IF ( hour_call_emis /= hour ) THEN
1136
1137	CALL chem_emissions_setup( chem_emis_att, chem_emis, n_matched_vars )
1138	hour_call_emis = hour
1139
1140	ENDIF
1141
1142	ELSE
1143
1144	CALL chem_emissions_update_on_demand
1145
1146	ENDIF
1147
1148	ENDIF
1149
1150
1151	!
1152	!-- If required, consider aerosol emissions for the salsa model
1153	IF ( salsa ) THEN
1154	!
1155	!-- Call emission routine to update emissions if needed
1156	CALL salsa_emission_update
1157
1158	ENDIF
1159	!
1160	!-- If required, calculate indoor temperature, waste heat, heat flux
1161	!-- through wall, etc.
1162	!-- dt_indoor steers the frequency of the indoor model calculations.
1163	!-- Note, at first timestep indoor model is called, in order to provide
1164	!-- a waste heat flux.
1165	IF ( indoor_model ) THEN
1166
1167	time_indoor = time_indoor + dt_3d
1168
1169	IF ( time_indoor >= dt_indoor .OR. current_timestep_number == 0 ) THEN
1170
1171	IF ( time_indoor >= dt_indoor ) time_indoor = time_indoor - dt_indoor
1172
1173	CALL cpu_log( log_point(76), 'indoor_model', 'start' )
1174	CALL im_main_heatcool
1175	CALL cpu_log( log_point(76), 'indoor_model', 'stop' )
1176
1177	ENDIF
1178	ENDIF
1179	!
1180	!-- Increase simulation time and output times
1181	nr_timesteps_this_run = nr_timesteps_this_run + 1
1182	current_timestep_number = current_timestep_number + 1
1183	simulated_time = simulated_time + dt_3d
1184	time_since_reference_point = simulated_time - coupling_start_time
1185	simulated_time_chr = time_to_string( time_since_reference_point )
1186
1187
1188	IF ( time_since_reference_point >= skip_time_data_output_av ) THEN
1189	time_do_av = time_do_av + dt_3d
1190	ENDIF
1191	IF ( time_since_reference_point >= skip_time_do2d_xy ) THEN
1192	time_do2d_xy = time_do2d_xy + dt_3d
1193	ENDIF
1194	IF ( time_since_reference_point >= skip_time_do2d_xz ) THEN
1195	time_do2d_xz = time_do2d_xz + dt_3d
1196	ENDIF
1197	IF ( time_since_reference_point >= skip_time_do2d_yz ) THEN
1198	time_do2d_yz = time_do2d_yz + dt_3d
1199	ENDIF
1200	IF ( time_since_reference_point >= skip_time_do3d ) THEN
1201	time_do3d = time_do3d + dt_3d
1202	ENDIF
1203	DO mid = 1, masks
1204	IF ( time_since_reference_point >= skip_time_domask(mid) ) THEN
1205	time_domask(mid)= time_domask(mid) + dt_3d
1206	ENDIF
1207	ENDDO
1208	IF ( time_since_reference_point >= skip_time_dosp ) THEN
1209	time_dosp = time_dosp + dt_3d
1210	ENDIF
1211	time_dots = time_dots + dt_3d
1212	IF ( .NOT. first_call_lpm ) THEN
1213	time_dopts = time_dopts + dt_3d
1214	ENDIF
1215	IF ( time_since_reference_point >= skip_time_dopr ) THEN
1216	time_dopr = time_dopr + dt_3d
1217	ENDIF
1218	time_dopr_listing = time_dopr_listing + dt_3d
1219	time_run_control = time_run_control + dt_3d
1220	!
1221	!-- Increment time-counter for surface output
1222	IF ( surface_output ) THEN
1223	IF ( time_since_reference_point >= skip_time_dosurf ) THEN
1224	time_dosurf = time_dosurf + dt_3d
1225	ENDIF
1226	IF ( time_since_reference_point >= skip_time_dosurf_av ) THEN
1227	time_dosurf_av = time_dosurf_av + dt_3d
1228	ENDIF
1229	ENDIF
1230	!
1231	!-- Increment time-counter for virtual measurements
1232	IF ( virtual_measurement .AND. vm_time_start <= time_since_reference_point ) THEN
1233	time_virtual_measurement = time_virtual_measurement + dt_3d
1234	ENDIF
1235
1236	!
1237	!-- Increment time-counter for wind turbine data output
1238	IF ( wind_turbine ) THEN
1239	time_wtm = time_wtm + dt_3d
1240	ENDIF
1241
1242	!
1243	!-- In case of synthetic turbulence generation and parametrized turbulence
1244	!-- information, update the time counter and if required, adjust the
1245	!-- STG to new atmospheric conditions.
1246	IF ( use_syn_turb_gen ) THEN
1247	IF ( parametrize_inflow_turbulence ) THEN
1248	time_stg_adjust = time_stg_adjust + dt_3d
1249	IF ( time_stg_adjust >= dt_stg_adjust ) THEN
1250	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'start' )
1251	CALL stg_adjust
1252	CALL cpu_log( log_point(57), 'synthetic_turbulence_gen', 'stop' )
1253	ENDIF
1254	ENDIF
1255	time_stg_call = time_stg_call + dt_3d
1256	ENDIF
1257
1258	!
1259	!-- Data exchange between coupled models
1260	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled ) THEN
1261	time_coupling = time_coupling + dt_3d
1262
1263	!
1264	!-- In case of model termination initiated by the local model
1265	!-- (terminate_coupled > 0), the coupler must be skipped because it would
1266	!-- cause an MPI intercomminucation hang.
1267	!-- If necessary, the coupler will be called at the beginning of the
1268	!-- next restart run.
1269	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
1270	CALL surface_coupler
1271	time_coupling = time_coupling - dt_coupling
1272	ENDDO
1273	ENDIF
1274
1275	!
1276	!-- Biometeorology calculation of stationary thermal indices
1277	!-- Todo (kanani): biometeorology needs own time_... treatment.
1278	!-- It might be that time_do2d_xy differs from time_do3d,
1279	!-- and then we might get trouble with the biomet output,
1280	!-- because we can have 2d and/or 3d biomet output!!
1281	IF ( biometeorology &
1282	.AND. ( ( time_do3d >= dt_do3d .AND. time_since_reference_point >= skip_time_do3d ) &
1283	.OR. &
1284	( time_do2d_xy >= dt_do2d_xy .AND. time_since_reference_point >= skip_time_do2d_xy ) &
1285	) ) THEN
1286	!
1287	!-- If required, do thermal comfort calculations
1288	IF ( thermal_comfort ) THEN
1289	CALL bio_calculate_thermal_index_maps ( .FALSE. )
1290	ENDIF
1291	!
1292	!-- If required, do UV exposure calculations
1293	IF ( uv_exposure ) THEN
1294	CALL bio_calculate_uv_exposure
1295	ENDIF
1296	ENDIF
1297
1298	!
1299	!-- Execute alle other module actions routunes
1300	CALL module_interface_actions( 'after_integration' )
1301
1302	!
1303	!-- If Galilei transformation is used, determine the distance that the
1304	!-- model has moved so far
1305	IF ( galilei_transformation ) THEN
1306	advected_distance_x = advected_distance_x + u_gtrans * dt_3d
1307	advected_distance_y = advected_distance_y + v_gtrans * dt_3d
1308	ENDIF
1309
1310	!
1311	!-- Check, if restart is necessary (because cpu-time is expiring or
1312	!-- because it is forced by user) and set stop flag
1313	!-- This call is skipped if the remote model has already initiated a restart.
1314	IF ( .NOT. terminate_run ) CALL check_for_restart
1315
1316	!
1317	!-- Carry out statistical analysis and output at the requested output times.
1318	!-- The MOD function is used for calculating the output time counters (like
1319	!-- time_dopr) in order to regard a possible decrease of the output time
1320	!-- interval in case of restart runs
1321
1322	!
1323	!-- Set a flag indicating that so far no statistics have been created
1324	!-- for this time step
1325	flow_statistics_called = .FALSE.
1326
1327	!
1328	!-- If required, call flow_statistics for averaging in time
1329	IF ( averaging_interval_pr /= 0.0_wp .AND. &
1330	( dt_dopr - time_dopr ) <= averaging_interval_pr .AND. &
1331	time_since_reference_point >= skip_time_dopr ) THEN
1332	time_dopr_av = time_dopr_av + dt_3d
1333	IF ( time_dopr_av >= dt_averaging_input_pr ) THEN
1334	do_sum = .TRUE.
1335	time_dopr_av = MOD( time_dopr_av, MAX( dt_averaging_input_pr, dt_3d ) )
1336	ENDIF
1337	ENDIF
1338	IF ( do_sum ) CALL flow_statistics
1339
1340	!
1341	!-- Sum-up 3d-arrays for later output of time-averaged 2d/3d/masked data
1342	IF ( averaging_interval /= 0.0_wp .AND. &
1343	( dt_data_output_av - time_do_av ) <= averaging_interval .AND. &
1344	time_since_reference_point >= skip_time_data_output_av ) &
1345	THEN
1346	time_do_sla = time_do_sla + dt_3d
1347	IF ( time_do_sla >= dt_averaging_input ) THEN
1348	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1349	CALL doq_calculate
1350
1351	CALL sum_up_3d_data
1352	average_count_3d = average_count_3d + 1
1353	time_do_sla = MOD( time_do_sla, MAX( dt_averaging_input, dt_3d ) )
1354	ENDIF
1355	ENDIF
1356	!
1357	!-- Average surface data
1358	IF ( surface_output ) THEN
1359	IF ( averaging_interval_surf /= 0.0_wp &
1360	.AND. ( dt_dosurf_av - time_dosurf_av ) <= averaging_interval_surf &
1361	.AND. time_since_reference_point >= skip_time_dosurf_av ) THEN
1362	IF ( time_dosurf_av >= dt_averaging_input ) THEN
1363	CALL surface_data_output_averaging
1364	average_count_surf = average_count_surf + 1
1365	ENDIF
1366	ENDIF
1367	ENDIF
1368
1369	!
1370	!-- Calculate spectra for time averaging
1371	IF ( averaging_interval_sp /= 0.0_wp .AND. ( dt_dosp - time_dosp ) <= averaging_interval_sp&
1372	.AND. time_since_reference_point >= skip_time_dosp ) THEN
1373	time_dosp_av = time_dosp_av + dt_3d
1374	IF ( time_dosp_av >= dt_averaging_input_pr ) THEN
1375	CALL calc_spectra
1376	time_dosp_av = MOD( time_dosp_av, MAX( dt_averaging_input_pr, dt_3d ) )
1377	ENDIF
1378	ENDIF
1379
1380	!
1381	!-- Call flight module and output data
1382	IF ( virtual_flight ) THEN
1383	CALL flight_measurement
1384	CALL data_output_flight
1385	ENDIF
1386	!
1387	!-- Take virtual measurements
1388	IF ( virtual_measurement .AND. time_virtual_measurement >= dt_virtual_measurement &
1389	.AND. vm_time_start <= time_since_reference_point ) THEN
1390	CALL vm_sampling
1391	CALL vm_data_output
1392	time_virtual_measurement = MOD( time_virtual_measurement, &
1393	MAX( dt_virtual_measurement, dt_3d ) )
1394	ENDIF
1395
1396	!
1397	!-- Output wind turbine data
1398	IF ( wind_turbine .AND. time_wtm >= dt_data_output_wtm ) THEN
1399	CALL wtm_data_output
1400	time_wtm = MOD( time_wtm, MAX( dt_data_output_wtm, dt_3d ) )
1401	ENDIF
1402
1403	!
1404	!-- Profile output (ASCII) on file
1405	IF ( time_dopr_listing >= dt_dopr_listing ) THEN
1406	CALL print_1d
1407	time_dopr_listing = MOD( time_dopr_listing, MAX( dt_dopr_listing, dt_3d ) )
1408	ENDIF
1409
1410	!
1411	!-- Graphic output for PROFIL
1412	IF ( time_dopr >= dt_dopr .AND. time_since_reference_point >= skip_time_dopr ) THEN
1413	IF ( dopr_n /= 0 ) CALL data_output_profiles
1414	time_dopr = MOD( time_dopr, MAX( dt_dopr, dt_3d ) )
1415	time_dopr_av = 0.0_wp ! due to averaging (see above)
1416	ENDIF
1417
1418	!
1419	!-- Graphic output for time series
1420	IF ( time_dots >= dt_dots ) THEN
1421	CALL data_output_tseries
1422	time_dots = MOD( time_dots, MAX( dt_dots, dt_3d ) )
1423	ENDIF
1424
1425	!
1426	!-- Output of spectra (formatted for use with PROFIL), in case of no
1427	!-- time averaging, spectra has to be calculated before
1428	IF ( time_dosp >= dt_dosp .AND. time_since_reference_point >= skip_time_dosp ) THEN
1429	IF ( average_count_sp == 0 ) CALL calc_spectra
1430	CALL data_output_spectra
1431	time_dosp = MOD( time_dosp, MAX( dt_dosp, dt_3d ) )
1432	ENDIF
1433
1434	!
1435	!-- 2d-data output (cross-sections)
1436	IF ( time_do2d_xy >= dt_do2d_xy .AND. time_since_reference_point >= skip_time_do2d_xy ) THEN
1437	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1438	CALL doq_calculate
1439
1440	CALL data_output_2d( 'xy', 0 )
1441	time_do2d_xy = MOD( time_do2d_xy, MAX( dt_do2d_xy, dt_3d ) )
1442	ENDIF
1443	IF ( time_do2d_xz >= dt_do2d_xz .AND. time_since_reference_point >= skip_time_do2d_xz ) THEN
1444	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1445
1446	CALL doq_calculate
1447	CALL data_output_2d( 'xz', 0 )
1448	time_do2d_xz = MOD( time_do2d_xz, MAX( dt_do2d_xz, dt_3d ) )
1449	ENDIF
1450	IF ( time_do2d_yz >= dt_do2d_yz .AND. time_since_reference_point >= skip_time_do2d_yz ) THEN
1451	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1452	CALL doq_calculate
1453
1454	CALL data_output_2d( 'yz', 0 )
1455	time_do2d_yz = MOD( time_do2d_yz, MAX( dt_do2d_yz, dt_3d ) )
1456	ENDIF
1457
1458	!
1459	!-- 3d-data output (volume data)
1460	IF ( time_do3d >= dt_do3d .AND. time_since_reference_point >= skip_time_do3d ) THEN
1461	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1462	CALL doq_calculate
1463
1464	CALL data_output_3d( 0 )
1465	time_do3d = MOD( time_do3d, MAX( dt_do3d, dt_3d ) )
1466	ENDIF
1467
1468	!
1469	!-- Masked data output
1470	DO mid = 1, masks
1471	IF ( time_domask(mid) >= dt_domask(mid) &
1472	.AND. time_since_reference_point >= skip_time_domask(mid) ) THEN
1473	IF ( current_timestep_number > timestep_number_at_prev_calc ) &
1474	CALL doq_calculate
1475
1476	CALL data_output_mask( 0, mid )
1477	time_domask(mid) = MOD( time_domask(mid), MAX( dt_domask(mid), dt_3d ) )
1478	ENDIF
1479	ENDDO
1480
1481	!
1482	!-- Output of time-averaged 2d/3d/masked data
1483	IF ( time_do_av >= dt_data_output_av &
1484	.AND. time_since_reference_point >= skip_time_data_output_av ) THEN
1485	CALL average_3d_data
1486	!
1487	!-- Udate thermal comfort indices based on updated averaged input
1488	IF ( biometeorology .AND. thermal_comfort ) THEN
1489	CALL bio_calculate_thermal_index_maps ( .TRUE. )
1490	ENDIF
1491	CALL data_output_2d( 'xy', 1 )
1492	CALL data_output_2d( 'xz', 1 )
1493	CALL data_output_2d( 'yz', 1 )
1494	CALL data_output_3d( 1 )
1495	DO mid = 1, masks
1496	CALL data_output_mask( 1, mid )
1497	ENDDO
1498	time_do_av = MOD( time_do_av, MAX( dt_data_output_av, dt_3d ) )
1499	ENDIF
1500	!
1501	!-- Output of surface data, instantaneous and averaged data
1502	IF ( surface_output ) THEN
1503	IF ( time_dosurf >= dt_dosurf .AND. time_since_reference_point >= skip_time_dosurf ) THEN
1504	CALL surface_data_output( 0 )
1505	time_dosurf = MOD( time_dosurf, MAX( dt_dosurf, dt_3d ) )
1506	ENDIF
1507	IF ( time_dosurf_av >= dt_dosurf_av .AND. time_since_reference_point >= skip_time_dosurf_av ) THEN
1508	CALL surface_data_output( 1 )
1509	time_dosurf_av = MOD( time_dosurf_av, MAX( dt_dosurf_av, dt_3d ) )
1510	ENDIF
1511	ENDIF
1512
1513	!
1514	!-- Output of particle time series
1515	IF ( particle_advection ) THEN
1516	IF ( time_dopts >= dt_dopts .OR. &
1517	( time_since_reference_point >= particle_advection_start .AND. &
1518	first_call_lpm ) ) THEN
1519	CALL lpm_data_output_ptseries
1520	time_dopts = MOD( time_dopts, MAX( dt_dopts, dt_3d ) )
1521	ENDIF
1522	ENDIF
1523
1524	!
1525	!-- If required, set the heat flux for the next time step to a random value
1526	IF ( constant_heatflux .AND. random_heatflux ) THEN
1527	IF ( surf_def_h(0)%ns >= 1 ) THEN
1528	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1529	CALL disturb_heatflux( surf_def_h(0) )
1530	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1531	ENDIF
1532	IF ( surf_lsm_h(0)%ns >= 1 ) THEN
1533	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1534	CALL disturb_heatflux( surf_lsm_h(0) )
1535	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1536	ENDIF
1537	IF ( surf_usm_h(0)%ns >= 1 ) THEN
1538	CALL cpu_log( log_point(23), 'disturb_heatflux', 'start' )
1539	CALL disturb_heatflux( surf_usm_h(0) )
1540	CALL cpu_log( log_point(23), 'disturb_heatflux', 'stop' )
1541	ENDIF
1542	ENDIF
1543
1544	!
1545	!-- Execute alle other module actions routunes
1546	CALL module_interface_actions( 'after_timestep' )
1547
1548	!
1549	!-- Determine size of next time step. Save timestep dt_3d because it is
1550	!-- newly calculated in routine timestep, but required further below for
1551	!-- steering the run control output interval
1552	dt_3d_old = dt_3d
1553	CALL timestep
1554
1555	#if defined( __parallel )
1556	!
1557	!-- Synchronize the timestep in case of nested run.
1558	IF ( nested_run ) THEN
1559	!
1560	!-- Synchronize by unifying the time step.
1561	!-- Global minimum of all time-steps is used for all.
1562	CALL pmci_synchronize
1563	ENDIF
1564	#endif
1565
1566	!
1567	!-- Computation and output of run control parameters.
1568	!-- This is also done whenever perturbations have been imposed
1569	IF ( time_run_control >= dt_run_control .OR. &
1570	timestep_scheme(1:5) /= 'runge' .OR. disturbance_created ) &
1571	THEN
1572	CALL run_control
1573	IF ( time_run_control >= dt_run_control ) THEN
1574	time_run_control = MOD( time_run_control, MAX( dt_run_control, dt_3d_old ) )
1575	ENDIF
1576	ENDIF
1577
1578	!
1579	!-- Output elapsed simulated time in form of a progress bar on stdout
1580	IF ( myid == 0 ) CALL output_progress_bar
1581
1582	IF ( debug_output_timestep ) THEN
1583	WRITE( debug_string, * ) 'time_integration', simulated_time
1584	CALL debug_message( debug_string, 'end' )
1585	ENDIF
1586
1587	CALL cpu_log( log_point_s(10), 'timesteps', 'stop' )
1588
1589
1590	ENDDO ! time loop
1591
1592	#if defined( _OPENACC )
1593	CALL exit_surface_arrays
1594	#endif
1595	!$ACC END DATA
1596	!$ACC END DATA
1597	!$ACC END DATA
1598	!$ACC END DATA
1599	!$ACC END DATA
1600	!$ACC END DATA
1601	!$ACC END DATA
1602	!$ACC END DATA
1603
1604	IF ( myid == 0 ) CALL finish_progress_bar
1605
1606	CALL location_message( 'atmosphere (and/or ocean) time-stepping', 'finished' )
1607
1608	END SUBROUTINE time_integration

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