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init_3d_model.f90 @ 4600

Last change on this file since 4600 was 4548, checked in by suehring, 4 years ago

Bugfix, move call for lsf_forcing_surf after lsf_init is called

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/palm/branches/chemistry/SOURCE/init_3d_model.f90	2047-3190,3218-3297
/palm/branches/forwind/SOURCE/init_3d_model.f90	1564-1913
/palm/branches/mosaik_M2/init_3d_model.f90	2360-3471
/palm/branches/palm4u/SOURCE/init_3d_model.f90	2540-2692
/palm/branches/rans/SOURCE/init_3d_model.f90	2078-3128
/palm/branches/resler/SOURCE/init_3d_model.f90	2023-4492
/palm/branches/salsa/SOURCE/init_3d_model.f90	2503-3581

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1	!> @file init_3d_model.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: init_3d_model.f90 4548 2020-05-28 19:36:45Z suehring $
27	! Bugfix, move call for lsf_forcing_surf after lsf_init is called
28	!
29	! 4514 2020-04-30 16:29:59Z suehring
30	! Add possibility to initialize surface sensible and latent heat fluxes via
31	! a static driver.
32	!
33	! 4493 2020-04-10 09:49:43Z pavelkrc
34	! Overwrite u_init, v_init, pt_init, q_init and s_init with hom for all
35	! cyclic_fill-cases, not only for turbulent_inflow = .TRUE.
36	!
37	! 4360 2020-01-07 11:25:50Z suehring
38	! Introduction of wall_flags_total_0, which currently sets bits based on static
39	! topography information used in wall_flags_static_0
40	!
41	! 4329 2019-12-10 15:46:36Z motisi
42	! Renamed wall_flags_0 to wall_flags_static_0
43	!
44	! 4286 2019-10-30 16:01:14Z resler
45	! implement new palm_date_time_mod
46	!
47	! 4223 2019-09-10 09:20:47Z gronemeier
48	! Deallocate temporary string array since it may be re-used to read different
49	! input data in other modules
50	!
51	! 4186 2019-08-23 16:06:14Z suehring
52	! Design change, use variables defined in netcdf_data_input_mod to read netcd
53	! variables rather than define local ones.
54	!
55	! 4185 2019-08-23 13:49:38Z oliver.maas
56	! For initializing_actions = ' cyclic_fill':
57	! Overwrite u_init, v_init, pt_init, q_init and s_init with the
58	! (temporally) and horizontally averaged vertical profiles from the end
59	! of the prerun, because these profiles shall be used as the basic state
60	! for the rayleigh damping and the pt_damping.
61	!
62	! 4182 2019-08-22 15:20:23Z scharf
63	! Corrected "Former revisions" section
64	!
65	! 4168 2019-08-16 13:50:17Z suehring
66	! Replace function get_topography_top_index by topo_top_ind
67	!
68	! 4151 2019-08-09 08:24:30Z suehring
69	! Add netcdf directive around input calls (fix for last commit)
70	!
71	! 4150 2019-08-08 20:00:47Z suehring
72	! Input of additional surface variables independent on land- or urban-surface
73	! model
74	!
75	! 4131 2019-08-02 11:06:18Z monakurppa
76	! Allocate sums and sums_l to allow profile output for salsa variables.
77	!
78	! 4130 2019-08-01 13:04:13Z suehring
79	! Effectively reduce 3D initialization to 1D initial profiles. This is because
80	! 3D initialization produces structures in the w-component that are correlated
81	! with the processor grid for some unknown reason
82	!
83	! 4090 2019-07-11 15:06:47Z Giersch
84	! Unused variables removed
85	!
86	! 4088 2019-07-11 13:57:56Z Giersch
87	! Pressure and density profile calculations revised using basic functions
88	!
89	! 4048 2019-06-21 21:00:21Z knoop
90	! Further modularization of particle code components
91	!
92	! 4017 2019-06-06 12:16:46Z schwenkel
93	! Convert most location messages to debug messages to reduce output in
94	! job logfile to a minimum
95	!
96	!
97	! unused variable removed
98	!
99	! 3937 2019-04-29 15:09:07Z suehring
100	! Move initialization of synthetic turbulence generator behind initialization
101	! of offline nesting. Remove call for stg_adjust, as this is now already done
102	! in stg_init.
103	!
104	! 3900 2019-04-16 15:17:43Z suehring
105	! Fix problem with LOD = 2 initialization
106	!
107	! 3885 2019-04-11 11:29:34Z kanani
108	! Changes related to global restructuring of location messages and introduction
109	! of additional debug messages
110	!
111	! 3849 2019-04-01 16:35:16Z knoop
112	! Move initialization of rmask before initializing user_init_arrays
113	!
114	! 3711 2019-01-31 13:44:26Z knoop
115	! Introduced module_interface_init_checks for post-init checks in modules
116	!
117	! 3700 2019-01-26 17:03:42Z knoop
118	! Some interface calls moved to module_interface + cleanup
119	!
120	! 3648 2019-01-02 16:35:46Z suehring
121	! Rename subroutines for surface-data output
122	!
123	! Revision 1.1 1998/03/09 16:22:22 raasch
124	! Initial revision
125	!
126	!
127	! Description:
128	! ------------
129	!> Allocation of arrays and initialization of the 3D model via
130	!> a) pre-run the 1D model
131	!> or
132	!> b) pre-set constant linear profiles
133	!> or
134	!> c) read values of a previous run
135	!------------------------------------------------------------------------------!
136	SUBROUTINE init_3d_model
137
138
139	USE advec_ws
140
141	USE arrays_3d
142
143	USE basic_constants_and_equations_mod, &
144	ONLY: c_p, g, l_v, pi, exner_function, exner_function_invers, &
145	ideal_gas_law_rho, ideal_gas_law_rho_pt, barometric_formula
146
147	USE bulk_cloud_model_mod, &
148	ONLY: bulk_cloud_model
149
150	USE chem_modules, &
151	ONLY: max_pr_cs ! ToDo: this dependency needs to be removed cause it is ugly #new_dom
152
153	USE control_parameters
154
155	USE grid_variables, &
156	ONLY: dx, dy, ddx2_mg, ddy2_mg
157
158	USE indices
159
160	USE kinds
161
162	USE lsf_nudging_mod, &
163	ONLY: ls_forcing_surf
164
165	USE model_1d_mod, &
166	ONLY: init_1d_model, l1d, u1d, v1d
167
168	USE module_interface, &
169	ONLY: module_interface_init_arrays, &
170	module_interface_init, &
171	module_interface_init_checks
172
173	USE multi_agent_system_mod, &
174	ONLY: agents_active, mas_init
175
176	USE netcdf_interface, &
177	ONLY: dots_max
178
179	USE netcdf_data_input_mod, &
180	ONLY: char_fill, &
181	check_existence, &
182	close_input_file, &
183	get_attribute, &
184	get_variable, &
185	init_3d, &
186	input_pids_static, &
187	inquire_num_variables, &
188	inquire_variable_names, &
189	input_file_static, &
190	netcdf_data_input_init_3d, &
191	num_var_pids, &
192	open_read_file, &
193	pids_id, &
194	real_2d, &
195	vars_pids
196
197	USE nesting_offl_mod, &
198	ONLY: nesting_offl_init
199
200	USE palm_date_time_mod, &
201	ONLY: set_reference_date_time
202
203	USE pegrid
204
205	#if defined( __parallel )
206	USE pmc_interface, &
207	ONLY: nested_run
208	#endif
209
210	USE random_function_mod
211
212	USE random_generator_parallel, &
213	ONLY: init_parallel_random_generator
214
215	USE read_restart_data_mod, &
216	ONLY: rrd_read_parts_of_global, rrd_local
217
218	USE statistics, &
219	ONLY: hom, hom_sum, mean_surface_level_height, pr_palm, rmask, &
220	statistic_regions, sums, sums_divnew_l, sums_divold_l, sums_l, &
221	sums_l_l, sums_wsts_bc_l, ts_value, &
222	weight_pres, weight_substep
223
224	USE synthetic_turbulence_generator_mod, &
225	ONLY: stg_init, use_syn_turb_gen
226
227	USE surface_layer_fluxes_mod, &
228	ONLY: init_surface_layer_fluxes
229
230	USE surface_mod, &
231	ONLY : init_single_surface_properties, &
232	init_surface_arrays, &
233	init_surfaces, &
234	surf_def_h, &
235	surf_def_v, &
236	surf_lsm_h, &
237	surf_usm_h
238
239	#if defined( _OPENACC )
240	USE surface_mod, &
241	ONLY : bc_h
242	#endif
243
244	USE surface_data_output_mod, &
245	ONLY: surface_data_output_init
246
247	USE transpose_indices
248
249	IMPLICIT NONE
250
251	INTEGER(iwp) :: i !< grid index in x direction
252	INTEGER(iwp) :: ind_array(1) !< dummy used to determine start index for external pressure forcing
253	INTEGER(iwp) :: j !< grid index in y direction
254	INTEGER(iwp) :: k !< grid index in z direction
255	INTEGER(iwp) :: k_surf !< surface level index
256	INTEGER(iwp) :: l !< running index over surface orientation
257	INTEGER(iwp) :: m !< index of surface element in surface data type
258	INTEGER(iwp) :: nz_u_shift !< topography-top index on u-grid, used to vertically shift initial profiles
259	INTEGER(iwp) :: nz_v_shift !< topography-top index on v-grid, used to vertically shift initial profiles
260	INTEGER(iwp) :: nz_w_shift !< topography-top index on w-grid, used to vertically shift initial profiles
261	INTEGER(iwp) :: nz_s_shift !< topography-top index on scalar-grid, used to vertically shift initial profiles
262	INTEGER(iwp) :: nz_u_shift_l !< topography-top index on u-grid, used to vertically shift initial profiles
263	INTEGER(iwp) :: nz_v_shift_l !< topography-top index on v-grid, used to vertically shift initial profiles
264	INTEGER(iwp) :: nz_w_shift_l !< topography-top index on w-grid, used to vertically shift initial profiles
265	INTEGER(iwp) :: nz_s_shift_l !< topography-top index on scalar-grid, used to vertically shift initial profiles
266	INTEGER(iwp) :: nzt_l !< index of top PE boundary for multigrid level
267	INTEGER(iwp) :: sr !< index of statistic region
268
269	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !< toal number of horizontal grid points in statistical region on subdomain
270
271	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !< number of horizontal non-wall bounded grid points on subdomain
272	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !< number of horizontal non-topography grid points on subdomain
273
274
275
276	REAL(wp), DIMENSION(:), ALLOCATABLE :: init_l !< dummy array used for averaging 3D data to obtain inital profiles
277	REAL(wp), DIMENSION(:), ALLOCATABLE :: p_hydrostatic !< hydrostatic pressure
278
279	REAL(wp) :: dx_l !< grid spacing along x on different multigrid level
280	REAL(wp) :: dy_l !< grid spacing along y on different multigrid level
281
282	REAL(wp), DIMENSION(1:3) :: volume_flow_area_l !< area of lateral and top model domain surface on local subdomain
283	REAL(wp), DIMENSION(1:3) :: volume_flow_initial_l !< initial volume flow into model domain
284
285	REAL(wp), DIMENSION(:), ALLOCATABLE :: mean_surface_level_height_l !< mean surface level height on subdomain
286	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !< total number of non-topography grid points on subdomain
287	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !< total number of non-topography grid points
288
289	TYPE(real_2d) :: tmp_2d !< temporary variable to input additional surface-data from static file
290
291	CALL location_message( 'model initialization', 'start' )
292	!
293	!-- Set reference date-time
294	CALL set_reference_date_time( date_time_str=origin_date_time )
295
296	IF ( debug_output ) CALL debug_message( 'allocating arrays', 'start' )
297	!
298	!-- Allocate arrays
299	ALLOCATE( mean_surface_level_height(0:statistic_regions), &
300	mean_surface_level_height_l(0:statistic_regions), &
301	ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
302	ngp_3d(0:statistic_regions), &
303	ngp_3d_inner(0:statistic_regions), &
304	ngp_3d_inner_l(0:statistic_regions), &
305	ngp_3d_inner_tmp(0:statistic_regions), &
306	sums_divnew_l(0:statistic_regions), &
307	sums_divold_l(0:statistic_regions) )
308	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
309	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
310	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
311	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
312	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
313	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
314	sums(nzb:nzt+1,pr_palm+max_pr_user+max_pr_cs+max_pr_salsa), &
315	sums_l(nzb:nzt+1,pr_palm+max_pr_user+max_pr_cs+max_pr_salsa,0:threads_per_task-1), &
316	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
317	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions) )
318	ALLOCATE( ts_value(dots_max,0:statistic_regions) )
319	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
320
321	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
322	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
323	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
324
325	ALLOCATE( pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
326	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
327	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
328	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
329	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
330	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
331	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
332	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
333	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
334	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
335	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
336	IF ( .NOT. neutral ) THEN
337	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
338	ENDIF
339	!
340	!-- Pre-set masks for regional statistics. Default is the total model domain.
341	!-- Ghost points are excluded because counting values at the ghost boundaries
342	!-- would bias the statistics
343	rmask = 1.0_wp
344	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
345	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
346	!
347	!-- Following array is required for perturbation pressure within the iterative
348	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
349	!-- the weighted average of the substeps and cannot be used in the Poisson
350	!-- solver.
351	IF ( psolver == 'sor' ) THEN
352	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
353	ELSEIF ( psolver(1:9) == 'multigrid' ) THEN
354	!
355	!-- For performance reasons, multigrid is using one ghost layer only
356	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
357	ENDIF
358
359	!
360	!-- Array for storing constant coeffficients of the tridiagonal solver
361	IF ( psolver == 'poisfft' ) THEN
362	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
363	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
364	ENDIF
365
366	IF ( humidity ) THEN
367	!
368	!-- 3D-humidity
369	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
370	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
371	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
372	vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
373	ENDIF
374
375	IF ( passive_scalar ) THEN
376
377	!
378	!-- 3D scalar arrays
379	ALLOCATE( s_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
380	s_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
381	s_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
382
383	ENDIF
384
385	!
386	!-- Allocate and set 1d-profiles for Stokes drift velocity. It may be set to
387	!-- non-zero values later in ocean_init
388	ALLOCATE( u_stokes_zu(nzb:nzt+1), u_stokes_zw(nzb:nzt+1), &
389	v_stokes_zu(nzb:nzt+1), v_stokes_zw(nzb:nzt+1) )
390	u_stokes_zu(:) = 0.0_wp
391	u_stokes_zw(:) = 0.0_wp
392	v_stokes_zu(:) = 0.0_wp
393	v_stokes_zw(:) = 0.0_wp
394
395	!
396	!-- Allocation of anelastic and Boussinesq approximation specific arrays
397	ALLOCATE( p_hydrostatic(nzb:nzt+1) )
398	ALLOCATE( rho_air(nzb:nzt+1) )
399	ALLOCATE( rho_air_zw(nzb:nzt+1) )
400	ALLOCATE( drho_air(nzb:nzt+1) )
401	ALLOCATE( drho_air_zw(nzb:nzt+1) )
402	!
403	!-- Density profile calculation for anelastic and Boussinesq approximation
404	!-- In case of a Boussinesq approximation, a constant density is calculated
405	!-- mainly for output purposes. This density do not need to be considered
406	!-- in the model's system of equations.
407	IF ( TRIM( approximation ) == 'anelastic' ) THEN
408	DO k = nzb, nzt+1
409	p_hydrostatic(k) = barometric_formula(zu(k), pt_surface * &
410	exner_function(surface_pressure * 100.0_wp), &
411	surface_pressure * 100.0_wp)
412
413	rho_air(k) = ideal_gas_law_rho_pt(p_hydrostatic(k), pt_init(k))
414	ENDDO
415
416	DO k = nzb, nzt
417	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
418	ENDDO
419
420	rho_air_zw(nzt+1) = rho_air_zw(nzt) &
421	+ 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
422
423	ELSE
424	DO k = nzb, nzt+1
425	p_hydrostatic(k) = barometric_formula(zu(nzb), pt_surface * &
426	exner_function(surface_pressure * 100.0_wp), &
427	surface_pressure * 100.0_wp)
428
429	rho_air(k) = ideal_gas_law_rho_pt(p_hydrostatic(k), pt_init(nzb))
430	ENDDO
431
432	DO k = nzb, nzt
433	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
434	ENDDO
435
436	rho_air_zw(nzt+1) = rho_air_zw(nzt) &
437	+ 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
438
439	ENDIF
440	!
441	!-- compute the inverse density array in order to avoid expencive divisions
442	drho_air = 1.0_wp / rho_air
443	drho_air_zw = 1.0_wp / rho_air_zw
444
445	!
446	!-- Allocation of flux conversion arrays
447	ALLOCATE( heatflux_input_conversion(nzb:nzt+1) )
448	ALLOCATE( waterflux_input_conversion(nzb:nzt+1) )
449	ALLOCATE( momentumflux_input_conversion(nzb:nzt+1) )
450	ALLOCATE( heatflux_output_conversion(nzb:nzt+1) )
451	ALLOCATE( waterflux_output_conversion(nzb:nzt+1) )
452	ALLOCATE( momentumflux_output_conversion(nzb:nzt+1) )
453
454	!
455	!-- calculate flux conversion factors according to approximation and in-/output mode
456	DO k = nzb, nzt+1
457
458	IF ( TRIM( flux_input_mode ) == 'kinematic' ) THEN
459	heatflux_input_conversion(k) = rho_air_zw(k)
460	waterflux_input_conversion(k) = rho_air_zw(k)
461	momentumflux_input_conversion(k) = rho_air_zw(k)
462	ELSEIF ( TRIM( flux_input_mode ) == 'dynamic' ) THEN
463	heatflux_input_conversion(k) = 1.0_wp / c_p
464	waterflux_input_conversion(k) = 1.0_wp / l_v
465	momentumflux_input_conversion(k) = 1.0_wp
466	ENDIF
467
468	IF ( TRIM( flux_output_mode ) == 'kinematic' ) THEN
469	heatflux_output_conversion(k) = drho_air_zw(k)
470	waterflux_output_conversion(k) = drho_air_zw(k)
471	momentumflux_output_conversion(k) = drho_air_zw(k)
472	ELSEIF ( TRIM( flux_output_mode ) == 'dynamic' ) THEN
473	heatflux_output_conversion(k) = c_p
474	waterflux_output_conversion(k) = l_v
475	momentumflux_output_conversion(k) = 1.0_wp
476	ENDIF
477
478	IF ( .NOT. humidity ) THEN
479	waterflux_input_conversion(k) = 1.0_wp
480	waterflux_output_conversion(k) = 1.0_wp
481	ENDIF
482
483	ENDDO
484
485	!
486	!-- In case of multigrid method, compute grid lengths and grid factors for the
487	!-- grid levels with respective density on each grid
488	IF ( psolver(1:9) == 'multigrid' ) THEN
489
490	ALLOCATE( ddx2_mg(maximum_grid_level) )
491	ALLOCATE( ddy2_mg(maximum_grid_level) )
492	ALLOCATE( dzu_mg(nzb+1:nzt+1,maximum_grid_level) )
493	ALLOCATE( dzw_mg(nzb+1:nzt+1,maximum_grid_level) )
494	ALLOCATE( f1_mg(nzb+1:nzt,maximum_grid_level) )
495	ALLOCATE( f2_mg(nzb+1:nzt,maximum_grid_level) )
496	ALLOCATE( f3_mg(nzb+1:nzt,maximum_grid_level) )
497	ALLOCATE( rho_air_mg(nzb:nzt+1,maximum_grid_level) )
498	ALLOCATE( rho_air_zw_mg(nzb:nzt+1,maximum_grid_level) )
499
500	dzu_mg(:,maximum_grid_level) = dzu
501	rho_air_mg(:,maximum_grid_level) = rho_air
502	!
503	!-- Next line to ensure an equally spaced grid.
504	dzu_mg(1,maximum_grid_level) = dzu(2)
505	rho_air_mg(nzb,maximum_grid_level) = rho_air(nzb) + &
506	(rho_air(nzb) - rho_air(nzb+1))
507
508	dzw_mg(:,maximum_grid_level) = dzw
509	rho_air_zw_mg(:,maximum_grid_level) = rho_air_zw
510	nzt_l = nzt
511	DO l = maximum_grid_level-1, 1, -1
512	dzu_mg(nzb+1,l) = 2.0_wp * dzu_mg(nzb+1,l+1)
513	dzw_mg(nzb+1,l) = 2.0_wp * dzw_mg(nzb+1,l+1)
514	rho_air_mg(nzb,l) = rho_air_mg(nzb,l+1) + (rho_air_mg(nzb,l+1) - rho_air_mg(nzb+1,l+1))
515	rho_air_zw_mg(nzb,l) = rho_air_zw_mg(nzb,l+1) + (rho_air_zw_mg(nzb,l+1) - rho_air_zw_mg(nzb+1,l+1))
516	rho_air_mg(nzb+1,l) = rho_air_mg(nzb+1,l+1)
517	rho_air_zw_mg(nzb+1,l) = rho_air_zw_mg(nzb+1,l+1)
518	nzt_l = nzt_l / 2
519	DO k = 2, nzt_l+1
520	dzu_mg(k,l) = dzu_mg(2k-2,l+1) + dzu_mg(2k-1,l+1)
521	dzw_mg(k,l) = dzw_mg(2k-2,l+1) + dzw_mg(2k-1,l+1)
522	rho_air_mg(k,l) = rho_air_mg(2*k-1,l+1)
523	rho_air_zw_mg(k,l) = rho_air_zw_mg(2*k-1,l+1)
524	ENDDO
525	ENDDO
526
527	nzt_l = nzt
528	dx_l = dx
529	dy_l = dy
530	DO l = maximum_grid_level, 1, -1
531	ddx2_mg(l) = 1.0_wp / dx_l**2
532	ddy2_mg(l) = 1.0_wp / dy_l**2
533	DO k = nzb+1, nzt_l
534	f2_mg(k,l) = rho_air_zw_mg(k,l) / ( dzu_mg(k+1,l) * dzw_mg(k,l) )
535	f3_mg(k,l) = rho_air_zw_mg(k-1,l) / ( dzu_mg(k,l) * dzw_mg(k,l) )
536	f1_mg(k,l) = 2.0_wp * ( ddx2_mg(l) + ddy2_mg(l) ) &
537	* rho_air_mg(k,l) + f2_mg(k,l) + f3_mg(k,l)
538	ENDDO
539	nzt_l = nzt_l / 2
540	dx_l = dx_l * 2.0_wp
541	dy_l = dy_l * 2.0_wp
542	ENDDO
543
544	ENDIF
545
546	!
547	!-- 1D-array for large scale subsidence velocity
548	IF ( .NOT. ALLOCATED( w_subs ) ) THEN
549	ALLOCATE ( w_subs(nzb:nzt+1) )
550	w_subs = 0.0_wp
551	ENDIF
552
553	!
554	!-- Arrays to store velocity data from t-dt and the phase speeds which
555	!-- are needed for radiation boundary conditions
556	IF ( bc_radiation_l ) THEN
557	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
558	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
559	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
560	ENDIF
561	IF ( bc_radiation_r ) THEN
562	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
563	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
564	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
565	ENDIF
566	IF ( bc_radiation_l .OR. bc_radiation_r ) THEN
567	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
568	c_w(nzb:nzt+1,nysg:nyng) )
569	ENDIF
570	IF ( bc_radiation_s ) THEN
571	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
572	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
573	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
574	ENDIF
575	IF ( bc_radiation_n ) THEN
576	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
577	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
578	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
579	ENDIF
580	IF ( bc_radiation_s .OR. bc_radiation_n ) THEN
581	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
582	c_w(nzb:nzt+1,nxlg:nxrg) )
583	ENDIF
584	IF ( bc_radiation_l .OR. bc_radiation_r .OR. bc_radiation_s .OR. &
585	bc_radiation_n ) THEN
586	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
587	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
588	ENDIF
589
590	!
591	!-- Initial assignment of the pointers
592	IF ( .NOT. neutral ) THEN
593	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
594	ELSE
595	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
596	ENDIF
597	u => u_1; u_p => u_2; tu_m => u_3
598	v => v_1; v_p => v_2; tv_m => v_3
599	w => w_1; w_p => w_2; tw_m => w_3
600
601	IF ( humidity ) THEN
602	q => q_1; q_p => q_2; tq_m => q_3
603	vpt => vpt_1
604	ENDIF
605
606	IF ( passive_scalar ) THEN
607	s => s_1; s_p => s_2; ts_m => s_3
608	ENDIF
609
610	!
611	!-- Initialize surface arrays
612	CALL init_surface_arrays
613	!
614	!-- Allocate arrays for other modules
615	CALL module_interface_init_arrays
616
617
618	!
619	!-- Allocate arrays containing the RK coefficient for calculation of
620	!-- perturbation pressure and turbulent fluxes. At this point values are
621	!-- set for pressure calculation during initialization (where no timestep
622	!-- is done). Further below the values needed within the timestep scheme
623	!-- will be set.
624	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
625	weight_pres(1:intermediate_timestep_count_max) )
626	weight_substep = 1.0_wp
627	weight_pres = 1.0_wp
628	intermediate_timestep_count = 0 ! needed when simulated_time = 0.0
629
630	IF ( debug_output ) CALL debug_message( 'allocating arrays', 'end' )
631
632	!
633	!-- Initialize time series
634	ts_value = 0.0_wp
635
636	!
637	!-- Initialize local summation arrays for routine flow_statistics.
638	!-- This is necessary because they may not yet have been initialized when they
639	!-- are called from flow_statistics (or - depending on the chosen model run -
640	!-- are never initialized)
641	sums_divnew_l = 0.0_wp
642	sums_divold_l = 0.0_wp
643	sums_l_l = 0.0_wp
644	sums_wsts_bc_l = 0.0_wp
645
646	!
647	!-- Initialize model variables
648	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
649	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
650	!
651	!-- Initialization with provided input data derived from larger-scale model
652	IF ( INDEX( initializing_actions, 'inifor' ) /= 0 ) THEN
653	IF ( debug_output ) CALL debug_message( 'initializing with INIFOR', 'start' )
654	!
655	!-- Read initial 1D profiles or 3D data from NetCDF file, depending
656	!-- on the provided level-of-detail.
657	!-- At the moment, only u, v, w, pt and q are provided.
658	CALL netcdf_data_input_init_3d
659	!
660	!-- Please note, Inifor provides data from nzb+1 to nzt.
661	!-- Bottom and top boundary conditions for Inifor profiles are already
662	!-- set (just after reading), so that this is not necessary here.
663	!-- Depending on the provided level-of-detail, initial Inifor data is
664	!-- either stored on data type (lod=1), or directly on 3D arrays (lod=2).
665	!-- In order to obtain also initial profiles in case of lod=2 (which
666	!-- is required for e.g. damping), average over 3D data.
667	IF( init_3d%lod_u == 1 ) THEN
668	u_init = init_3d%u_init
669	ELSEIF( init_3d%lod_u == 2 ) THEN
670	ALLOCATE( init_l(nzb:nzt+1) )
671	DO k = nzb, nzt+1
672	init_l(k) = SUM( u(k,nys:nyn,nxl:nxr) )
673	ENDDO
674	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
675
676	#if defined( __parallel )
677	CALL MPI_ALLREDUCE( init_l, u_init, nzt+1-nzb+1, &
678	MPI_REAL, MPI_SUM, comm2d, ierr )
679	#else
680	u_init = init_l
681	#endif
682	DEALLOCATE( init_l )
683
684	ENDIF
685
686	IF( init_3d%lod_v == 1 ) THEN
687	v_init = init_3d%v_init
688	ELSEIF( init_3d%lod_v == 2 ) THEN
689	ALLOCATE( init_l(nzb:nzt+1) )
690	DO k = nzb, nzt+1
691	init_l(k) = SUM( v(k,nys:nyn,nxl:nxr) )
692	ENDDO
693	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
694
695	#if defined( __parallel )
696	CALL MPI_ALLREDUCE( init_l, v_init, nzt+1-nzb+1, &
697	MPI_REAL, MPI_SUM, comm2d, ierr )
698	#else
699	v_init = init_l
700	#endif
701	DEALLOCATE( init_l )
702	ENDIF
703	IF( .NOT. neutral ) THEN
704	IF( init_3d%lod_pt == 1 ) THEN
705	pt_init = init_3d%pt_init
706	ELSEIF( init_3d%lod_pt == 2 ) THEN
707	ALLOCATE( init_l(nzb:nzt+1) )
708	DO k = nzb, nzt+1
709	init_l(k) = SUM( pt(k,nys:nyn,nxl:nxr) )
710	ENDDO
711	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
712
713	#if defined( __parallel )
714	CALL MPI_ALLREDUCE( init_l, pt_init, nzt+1-nzb+1, &
715	MPI_REAL, MPI_SUM, comm2d, ierr )
716	#else
717	pt_init = init_l
718	#endif
719	DEALLOCATE( init_l )
720	ENDIF
721	ENDIF
722
723
724	IF( humidity ) THEN
725	IF( init_3d%lod_q == 1 ) THEN
726	q_init = init_3d%q_init
727	ELSEIF( init_3d%lod_q == 2 ) THEN
728	ALLOCATE( init_l(nzb:nzt+1) )
729	DO k = nzb, nzt+1
730	init_l(k) = SUM( q(k,nys:nyn,nxl:nxr) )
731	ENDDO
732	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
733
734	#if defined( __parallel )
735	CALL MPI_ALLREDUCE( init_l, q_init, nzt+1-nzb+1, &
736	MPI_REAL, MPI_SUM, comm2d, ierr )
737	#else
738	q_init = init_l
739	#endif
740	DEALLOCATE( init_l )
741	ENDIF
742	ENDIF
743
744	!
745	!-- Write initial profiles onto 3D arrays.
746	!-- Work-around, 3D initialization of u,v,w creates artificial
747	!-- structures wich correlate with the processor grid. The reason
748	!-- for this is still unknown. To work-around this, 3D initialization
749	!-- will be effectively reduce to a 1D initialization where no such
750	!-- artificial structures appear.
751	DO i = nxlg, nxrg
752	DO j = nysg, nyng
753	IF( init_3d%lod_u == 1 .OR. init_3d%lod_u == 2 ) &
754	u(:,j,i) = u_init(:)
755	IF( init_3d%lod_v == 1 .OR. init_3d%lod_u == 2 ) &
756	v(:,j,i) = v_init(:)
757	IF( .NOT. neutral .AND. &
758	( init_3d%lod_pt == 1 .OR. init_3d%lod_pt == 2 ) ) &
759	pt(:,j,i) = pt_init(:)
760	IF( humidity .AND. &
761	( init_3d%lod_q == 1 .OR. init_3d%lod_q == 2 ) ) &
762	q(:,j,i) = q_init(:)
763	ENDDO
764	ENDDO
765	!
766	!-- Set geostrophic wind components.
767	IF ( init_3d%from_file_ug ) THEN
768	ug(:) = init_3d%ug_init(:)
769	ENDIF
770	IF ( init_3d%from_file_vg ) THEN
771	vg(:) = init_3d%vg_init(:)
772	ENDIF
773	!
774	!-- Set bottom and top boundary condition for geostrophic wind
775	ug(nzt+1) = ug(nzt)
776	vg(nzt+1) = vg(nzt)
777	ug(nzb) = ug(nzb+1)
778	vg(nzb) = vg(nzb+1)
779	!
780	!-- Set inital w to 0
781	w = 0.0_wp
782
783	IF ( passive_scalar ) THEN
784	DO i = nxlg, nxrg
785	DO j = nysg, nyng
786	s(:,j,i) = s_init
787	ENDDO
788	ENDDO
789	ENDIF
790
791	!
792	!-- Set velocity components at non-atmospheric / oceanic grid points to
793	!-- zero.
794	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
795	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
796	w = MERGE( w, 0.0_wp, BTEST( wall_flags_total_0, 3 ) )
797	!
798	!-- Initialize surface variables, e.g. friction velocity, momentum
799	!-- fluxes, etc.
800	CALL init_surfaces
801
802	IF ( debug_output ) CALL debug_message( 'initializing with INIFOR', 'end' )
803	!
804	!-- Initialization via computed 1D-model profiles
805	ELSEIF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
806
807	IF ( debug_output ) CALL debug_message( 'initializing with 1D model profiles', 'start' )
808	!
809	!-- Use solutions of the 1D model as initial profiles,
810	!-- start 1D model
811	CALL init_1d_model
812	!
813	!-- Transfer initial profiles to the arrays of the 3D model
814	DO i = nxlg, nxrg
815	DO j = nysg, nyng
816	pt(:,j,i) = pt_init
817	u(:,j,i) = u1d
818	v(:,j,i) = v1d
819	ENDDO
820	ENDDO
821
822	IF ( humidity ) THEN
823	DO i = nxlg, nxrg
824	DO j = nysg, nyng
825	q(:,j,i) = q_init
826	ENDDO
827	ENDDO
828	ENDIF
829
830	IF ( passive_scalar ) THEN
831	DO i = nxlg, nxrg
832	DO j = nysg, nyng
833	s(:,j,i) = s_init
834	ENDDO
835	ENDDO
836	ENDIF
837	!
838	!-- Store initial profiles for output purposes etc.
839	IF ( .NOT. constant_diffusion ) THEN
840	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
841	ENDIF
842	!
843	!-- Set velocities back to zero
844	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
845	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
846	!
847	!-- WARNING: The extra boundary conditions set after running the
848	!-- ------- 1D model impose an error on the divergence one layer
849	!-- below the topography; need to correct later
850	!-- ATTENTION: Provisional correction for Piacsek & Williams
851	!-- --------- advection scheme: keep u and v zero one layer below
852	!-- the topography.
853	IF ( ibc_uv_b == 1 ) THEN
854	!
855	!-- Neumann condition
856	DO i = nxl-1, nxr+1
857	DO j = nys-1, nyn+1
858	u(nzb,j,i) = u(nzb+1,j,i)
859	v(nzb,j,i) = v(nzb+1,j,i)
860	ENDDO
861	ENDDO
862
863	ENDIF
864	!
865	!-- Initialize surface variables, e.g. friction velocity, momentum
866	!-- fluxes, etc.
867	CALL init_surfaces
868
869	IF ( debug_output ) CALL debug_message( 'initializing with 1D model profiles', 'end' )
870
871	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
872	THEN
873
874	IF ( debug_output ) CALL debug_message( 'initializing with constant profiles', 'start' )
875
876	!
877	!-- Use constructed initial profiles (velocity constant with height,
878	!-- temperature profile with constant gradient)
879	DO i = nxlg, nxrg
880	DO j = nysg, nyng
881	pt(:,j,i) = pt_init
882	u(:,j,i) = u_init
883	v(:,j,i) = v_init
884	ENDDO
885	ENDDO
886	!
887	!-- Mask topography
888	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
889	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
890	!
891	!-- Set initial horizontal velocities at the lowest computational grid
892	!-- levels to zero in order to avoid too small time steps caused by the
893	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
894	!-- in the limiting formula!).
895	!-- Please note, in case land- or urban-surface model is used and a
896	!-- spinup is applied, masking the lowest computational level is not
897	!-- possible as MOST as well as energy-balance parametrizations will not
898	!-- work with zero wind velocity.
899	IF ( ibc_uv_b /= 1 .AND. .NOT. spinup ) THEN
900	DO i = nxlg, nxrg
901	DO j = nysg, nyng
902	DO k = nzb, nzt
903	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, &
904	BTEST( wall_flags_total_0(k,j,i), 20 ) )
905	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, &
906	BTEST( wall_flags_total_0(k,j,i), 21 ) )
907	ENDDO
908	ENDDO
909	ENDDO
910	ENDIF
911
912	IF ( humidity ) THEN
913	DO i = nxlg, nxrg
914	DO j = nysg, nyng
915	q(:,j,i) = q_init
916	ENDDO
917	ENDDO
918	ENDIF
919
920	IF ( passive_scalar ) THEN
921	DO i = nxlg, nxrg
922	DO j = nysg, nyng
923	s(:,j,i) = s_init
924	ENDDO
925	ENDDO
926	ENDIF
927
928	!
929	!-- Compute initial temperature field and other constants used in case
930	!-- of a sloping surface
931	IF ( sloping_surface ) CALL init_slope
932	!
933	!-- Initialize surface variables, e.g. friction velocity, momentum
934	!-- fluxes, etc.
935	CALL init_surfaces
936
937	IF ( debug_output ) CALL debug_message( 'initializing with constant profiles', 'end' )
938
939	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
940	THEN
941
942	IF ( debug_output ) CALL debug_message( 'initializing by user', 'start' )
943	!
944	!-- Pre-initialize surface variables, i.e. setting start- and end-indices
945	!-- at each (j,i)-location. Please note, this does not supersede
946	!-- user-defined initialization of surface quantities.
947	CALL init_surfaces
948	!
949	!-- Initialization will completely be done by the user
950	CALL user_init_3d_model
951
952	IF ( debug_output ) CALL debug_message( 'initializing by user', 'end' )
953
954	ENDIF
955
956	IF ( debug_output ) CALL debug_message( 'initializing statistics, boundary conditions, etc.', 'start' )
957
958	!
959	!-- Bottom boundary
960	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
961	u(nzb,:,:) = 0.0_wp
962	v(nzb,:,:) = 0.0_wp
963	ENDIF
964
965	!
966	!-- Apply channel flow boundary condition
967	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
968	u(nzt+1,:,:) = 0.0_wp
969	v(nzt+1,:,:) = 0.0_wp
970	ENDIF
971
972	!
973	!-- Calculate virtual potential temperature
974	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
975
976	!
977	!-- Store initial profiles for output purposes etc.. Please note, in case of
978	!-- initialization of u, v, w, pt, and q via output data derived from larger
979	!-- scale models, data will not be horizontally homogeneous. Actually, a mean
980	!-- profile should be calculated before.
981	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
982	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
983	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
984	hom(nzb,1,5,:) = 0.0_wp
985	hom(nzb,1,6,:) = 0.0_wp
986	ENDIF
987	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
988
989	IF ( humidity ) THEN
990	!
991	!-- Store initial profile of total water content, virtual potential
992	!-- temperature
993	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
994	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
995	!
996	!-- Store initial profile of mixing ratio and potential
997	!-- temperature
998	IF ( bulk_cloud_model .OR. cloud_droplets ) THEN
999	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
1000	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
1001	ENDIF
1002	ENDIF
1003
1004	!
1005	!-- Store initial scalar profile
1006	IF ( passive_scalar ) THEN
1007	hom(:,1,121,:) = SPREAD( s(:,nys,nxl), 2, statistic_regions+1 )
1008	ENDIF
1009
1010	!
1011	!-- Initialize the random number generators (from numerical recipes)
1012	CALL random_function_ini
1013
1014	IF ( random_generator == 'random-parallel' ) THEN
1015	CALL init_parallel_random_generator( nx, nys, nyn, nxl, nxr )
1016	ENDIF
1017	!
1018	!-- Set the reference state to be used in the buoyancy terms (for ocean runs
1019	!-- the reference state will be set (overwritten) in init_ocean)
1020	IF ( use_single_reference_value ) THEN
1021	IF ( .NOT. humidity ) THEN
1022	ref_state(:) = pt_reference
1023	ELSE
1024	ref_state(:) = vpt_reference
1025	ENDIF
1026	ELSE
1027	IF ( .NOT. humidity ) THEN
1028	ref_state(:) = pt_init(:)
1029	ELSE
1030	ref_state(:) = vpt(:,nys,nxl)
1031	ENDIF
1032	ENDIF
1033
1034	!
1035	!-- For the moment, vertical velocity is zero
1036	w = 0.0_wp
1037
1038	!
1039	!-- Initialize array sums (must be defined in first call of pres)
1040	sums = 0.0_wp
1041
1042	!
1043	!-- In case of iterative solvers, p must get an initial value
1044	IF ( psolver(1:9) == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
1045	!
1046	!-- Impose vortex with vertical axis on the initial velocity profile
1047	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
1048	CALL init_rankine
1049	ENDIF
1050
1051	!
1052	!-- Impose temperature anomaly (advection test only) or warm air bubble
1053	!-- close to surface
1054	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 .OR. &
1055	INDEX( initializing_actions, 'initialize_bubble' ) /= 0 ) THEN
1056	CALL init_pt_anomaly
1057	ENDIF
1058
1059	!
1060	!-- If required, change the surface temperature at the start of the 3D run
1061	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
1062	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
1063	ENDIF
1064
1065	!
1066	!-- If required, change the surface humidity/scalar at the start of the 3D
1067	!-- run
1068	IF ( humidity .AND. q_surface_initial_change /= 0.0_wp ) &
1069	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
1070
1071	IF ( passive_scalar .AND. s_surface_initial_change /= 0.0_wp ) &
1072	s(nzb,:,:) = s(nzb,:,:) + s_surface_initial_change
1073
1074
1075	!
1076	!-- Initialize old and new time levels.
1077	tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
1078	pt_p = pt; u_p = u; v_p = v; w_p = w
1079
1080	IF ( humidity ) THEN
1081	tq_m = 0.0_wp
1082	q_p = q
1083	ENDIF
1084
1085	IF ( passive_scalar ) THEN
1086	ts_m = 0.0_wp
1087	s_p = s
1088	ENDIF
1089
1090	IF ( debug_output ) CALL debug_message( 'initializing statistics, boundary conditions, etc.', 'end' )
1091
1092	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
1093	TRIM( initializing_actions ) == 'cyclic_fill' ) &
1094	THEN
1095
1096	IF ( debug_output ) CALL debug_message( 'initializing in case of restart / cyclic_fill', 'start' )
1097	!
1098	!-- Initialize surface elements and its attributes, e.g. heat- and
1099	!-- momentumfluxes, roughness, scaling parameters. As number of surface
1100	!-- elements might be different between runs, e.g. in case of cyclic fill,
1101	!-- and not all surface elements are read, surface elements need to be
1102	!-- initialized before.
1103	!-- Please note, in case of cyclic fill, surfaces should be initialized
1104	!-- after restart data is read, else, individual settings of surface
1105	!-- parameters will be overwritten from data of precursor run, hence,
1106	!-- init_surfaces is called a second time after reading the restart data.
1107	CALL init_surfaces
1108	!
1109	!-- When reading data for cyclic fill of 3D prerun data files, read
1110	!-- some of the global variables from the restart file which are required
1111	!-- for initializing the inflow
1112	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1113
1114	DO i = 0, io_blocks-1
1115	IF ( i == io_group ) THEN
1116	CALL rrd_read_parts_of_global
1117	ENDIF
1118	#if defined( __parallel )
1119	CALL MPI_BARRIER( comm2d, ierr )
1120	#endif
1121	ENDDO
1122
1123	ENDIF
1124
1125	!
1126	!-- Read processor specific binary data from restart file
1127	DO i = 0, io_blocks-1
1128	IF ( i == io_group ) THEN
1129	CALL rrd_local
1130	ENDIF
1131	#if defined( __parallel )
1132	CALL MPI_BARRIER( comm2d, ierr )
1133	#endif
1134	ENDDO
1135
1136
1137	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1138
1139	!
1140	!-- In case of cyclic fill, call init_surfaces a second time, so that
1141	!-- surface properties such as heat fluxes are initialized as prescribed.
1142	CALL init_surfaces
1143
1144	!
1145	!-- Overwrite u_init, v_init, pt_init, q_init and s_init with the
1146	!-- horizontally mean (hom) vertical profiles from the end
1147	!-- of the prerun, because these profiles shall be used as the reference
1148	!-- state for the rayleigh damping and the pt_damping. This is especially
1149	!-- important for the use of large_scale_subsidence, because the
1150	!-- reference temperature in the free atmosphere changes in time.
1151	u_init(:) = hom_sum(:,1,0)
1152	v_init(:) = hom_sum(:,2,0)
1153	pt_init(:) = hom_sum(:,4,0)
1154	IF ( humidity ) &
1155	q_init(:) = hom_sum(:,41,0)
1156	IF ( passive_scalar ) &
1157	s_init(:) = hom_sum(:,115,0)
1158	ENDIF
1159	!
1160	!-- In case of complex terrain and cyclic fill method as initialization,
1161	!-- shift initial data in the vertical direction for each point in the
1162	!-- x-y-plane depending on local surface height
1163	IF ( complex_terrain .AND. &
1164	TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1165	DO i = nxlg, nxrg
1166	DO j = nysg, nyng
1167	nz_u_shift = topo_top_ind(j,i,1)
1168	nz_v_shift = topo_top_ind(j,i,2)
1169	nz_w_shift = topo_top_ind(j,i,3)
1170	nz_s_shift = topo_top_ind(j,i,0)
1171
1172	u(nz_u_shift:nzt+1,j,i) = u(0:nzt+1-nz_u_shift,j,i)
1173
1174	v(nz_v_shift:nzt+1,j,i) = v(0:nzt+1-nz_v_shift,j,i)
1175
1176	w(nz_w_shift:nzt+1,j,i) = w(0:nzt+1-nz_w_shift,j,i)
1177
1178	p(nz_s_shift:nzt+1,j,i) = p(0:nzt+1-nz_s_shift,j,i)
1179	pt(nz_s_shift:nzt+1,j,i) = pt(0:nzt+1-nz_s_shift,j,i)
1180	ENDDO
1181	ENDDO
1182	ENDIF
1183	!
1184	!-- Initialization of the turbulence recycling method
1185	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1186	turbulent_inflow ) THEN
1187	!
1188	!-- First store the profiles to be used at the inflow.
1189	!-- These profiles are the (temporally) and horizontally averaged vertical
1190	!-- profiles from the prerun. Alternatively, prescribed profiles
1191	!-- for u,v-components can be used.
1192	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,1:num_mean_inflow_profiles) )
1193
1194	IF ( use_prescribed_profile_data ) THEN
1195	mean_inflow_profiles(:,1) = u_init ! u
1196	mean_inflow_profiles(:,2) = v_init ! v
1197	ELSE
1198	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
1199	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
1200	ENDIF
1201	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
1202	IF ( humidity ) &
1203	mean_inflow_profiles(:,6) = hom_sum(:,41,0) ! q
1204	IF ( passive_scalar ) &
1205	mean_inflow_profiles(:,7) = hom_sum(:,115,0) ! s
1206
1207	!
1208	!-- In case of complex terrain, determine vertical displacement at inflow
1209	!-- boundary and adjust mean inflow profiles
1210	IF ( complex_terrain ) THEN
1211	IF ( nxlg <= 0 .AND. nxrg >= 0 .AND. nysg <= 0 .AND. nyng >= 0 ) THEN
1212	nz_u_shift_l = topo_top_ind(j,i,1)
1213	nz_v_shift_l = topo_top_ind(j,i,2)
1214	nz_w_shift_l = topo_top_ind(j,i,3)
1215	nz_s_shift_l = topo_top_ind(j,i,0)
1216	ELSE
1217	nz_u_shift_l = 0
1218	nz_v_shift_l = 0
1219	nz_w_shift_l = 0
1220	nz_s_shift_l = 0
1221	ENDIF
1222
1223	#if defined( __parallel )
1224	CALL MPI_ALLREDUCE(nz_u_shift_l, nz_u_shift, 1, MPI_INTEGER, &
1225	MPI_MAX, comm2d, ierr)
1226	CALL MPI_ALLREDUCE(nz_v_shift_l, nz_v_shift, 1, MPI_INTEGER, &
1227	MPI_MAX, comm2d, ierr)
1228	CALL MPI_ALLREDUCE(nz_w_shift_l, nz_w_shift, 1, MPI_INTEGER, &
1229	MPI_MAX, comm2d, ierr)
1230	CALL MPI_ALLREDUCE(nz_s_shift_l, nz_s_shift, 1, MPI_INTEGER, &
1231	MPI_MAX, comm2d, ierr)
1232	#else
1233	nz_u_shift = nz_u_shift_l
1234	nz_v_shift = nz_v_shift_l
1235	nz_w_shift = nz_w_shift_l
1236	nz_s_shift = nz_s_shift_l
1237	#endif
1238
1239	mean_inflow_profiles(:,1) = 0.0_wp
1240	mean_inflow_profiles(nz_u_shift:nzt+1,1) = hom_sum(0:nzt+1-nz_u_shift,1,0) ! u
1241
1242	mean_inflow_profiles(:,2) = 0.0_wp
1243	mean_inflow_profiles(nz_v_shift:nzt+1,2) = hom_sum(0:nzt+1-nz_v_shift,2,0) ! v
1244
1245	mean_inflow_profiles(nz_s_shift:nzt+1,4) = hom_sum(0:nzt+1-nz_s_shift,4,0) ! pt
1246
1247	ENDIF
1248
1249	!
1250	!-- If necessary, adjust the horizontal flow field to the prescribed
1251	!-- profiles
1252	IF ( use_prescribed_profile_data ) THEN
1253	DO i = nxlg, nxrg
1254	DO j = nysg, nyng
1255	DO k = nzb, nzt+1
1256	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
1257	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
1258	ENDDO
1259	ENDDO
1260	ENDDO
1261	ENDIF
1262
1263	!
1264	!-- Use these mean profiles at the inflow (provided that Dirichlet
1265	!-- conditions are used)
1266	IF ( bc_dirichlet_l ) THEN
1267	DO j = nysg, nyng
1268	DO k = nzb, nzt+1
1269	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
1270	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
1271	w(k,j,nxlg:-1) = 0.0_wp
1272	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
1273	IF ( humidity ) &
1274	q(k,j,nxlg:-1) = mean_inflow_profiles(k,6)
1275	IF ( passive_scalar ) &
1276	s(k,j,nxlg:-1) = mean_inflow_profiles(k,7)
1277	ENDDO
1278	ENDDO
1279	ENDIF
1280
1281	!
1282	!-- Calculate the damping factors to be used at the inflow. For a
1283	!-- turbulent inflow the turbulent fluctuations have to be limited
1284	!-- vertically because otherwise the turbulent inflow layer will grow
1285	!-- in time.
1286	IF ( inflow_damping_height == 9999999.9_wp ) THEN
1287	!
1288	!-- Default: use the inversion height calculated by the prerun; if
1289	!-- this is zero, inflow_damping_height must be explicitly
1290	!-- specified.
1291	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
1292	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
1293	ELSE
1294	WRITE( message_string, * ) 'inflow_damping_height must be ', &
1295	'explicitly specified because&the inversion height ', &
1296	'calculated by the prerun is zero.'
1297	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
1298	ENDIF
1299
1300	ENDIF
1301
1302	IF ( inflow_damping_width == 9999999.9_wp ) THEN
1303	!
1304	!-- Default for the transition range: one tenth of the undamped
1305	!-- layer
1306	inflow_damping_width = 0.1_wp * inflow_damping_height
1307
1308	ENDIF
1309
1310	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
1311
1312	DO k = nzb, nzt+1
1313
1314	IF ( zu(k) <= inflow_damping_height ) THEN
1315	inflow_damping_factor(k) = 1.0_wp
1316	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
1317	inflow_damping_factor(k) = 1.0_wp - &
1318	( zu(k) - inflow_damping_height ) / &
1319	inflow_damping_width
1320	ELSE
1321	inflow_damping_factor(k) = 0.0_wp
1322	ENDIF
1323
1324	ENDDO
1325
1326	ENDIF
1327
1328	!
1329	!-- Inside buildings set velocities back to zero
1330	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1331	topography /= 'flat' ) THEN
1332	!
1333	!-- Inside buildings set velocities back to zero.
1334	!-- Other scalars (pt, q, s, p, sa, ...) are ignored at present,
1335	!-- maybe revise later.
1336	DO i = nxlg, nxrg
1337	DO j = nysg, nyng
1338	DO k = nzb, nzt
1339	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, &
1340	BTEST( wall_flags_total_0(k,j,i), 1 ) )
1341	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, &
1342	BTEST( wall_flags_total_0(k,j,i), 2 ) )
1343	w(k,j,i) = MERGE( w(k,j,i), 0.0_wp, &
1344	BTEST( wall_flags_total_0(k,j,i), 3 ) )
1345	ENDDO
1346	ENDDO
1347	ENDDO
1348
1349	ENDIF
1350
1351	!
1352	!-- Calculate initial temperature field and other constants used in case
1353	!-- of a sloping surface
1354	IF ( sloping_surface ) CALL init_slope
1355
1356	!
1357	!-- Initialize new time levels (only done in order to set boundary values
1358	!-- including ghost points)
1359	pt_p = pt; u_p = u; v_p = v; w_p = w
1360	IF ( humidity ) THEN
1361	q_p = q
1362	ENDIF
1363	IF ( passive_scalar ) s_p = s
1364	!
1365	!-- Allthough tendency arrays are set in prognostic_equations, they have
1366	!-- have to be predefined here because they are used (but multiplied with 0)
1367	!-- there before they are set.
1368	tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
1369	IF ( humidity ) THEN
1370	tq_m = 0.0_wp
1371	ENDIF
1372	IF ( passive_scalar ) ts_m = 0.0_wp
1373
1374	IF ( debug_output ) CALL debug_message( 'initializing in case of restart / cyclic_fill', 'end' )
1375
1376	ELSE
1377	!
1378	!-- Actually this part of the programm should not be reached
1379	message_string = 'unknown initializing problem'
1380	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
1381	ENDIF
1382
1383
1384	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1385	!
1386	!-- Initialize old timelevels needed for radiation boundary conditions
1387	IF ( bc_radiation_l ) THEN
1388	u_m_l(:,:,:) = u(:,:,1:2)
1389	v_m_l(:,:,:) = v(:,:,0:1)
1390	w_m_l(:,:,:) = w(:,:,0:1)
1391	ENDIF
1392	IF ( bc_radiation_r ) THEN
1393	u_m_r(:,:,:) = u(:,:,nx-1:nx)
1394	v_m_r(:,:,:) = v(:,:,nx-1:nx)
1395	w_m_r(:,:,:) = w(:,:,nx-1:nx)
1396	ENDIF
1397	IF ( bc_radiation_s ) THEN
1398	u_m_s(:,:,:) = u(:,0:1,:)
1399	v_m_s(:,:,:) = v(:,1:2,:)
1400	w_m_s(:,:,:) = w(:,0:1,:)
1401	ENDIF
1402	IF ( bc_radiation_n ) THEN
1403	u_m_n(:,:,:) = u(:,ny-1:ny,:)
1404	v_m_n(:,:,:) = v(:,ny-1:ny,:)
1405	w_m_n(:,:,:) = w(:,ny-1:ny,:)
1406	ENDIF
1407
1408	ENDIF
1409
1410	!
1411	!-- Calculate the initial volume flow at the right and north boundary
1412	IF ( conserve_volume_flow ) THEN
1413
1414	IF ( use_prescribed_profile_data ) THEN
1415
1416	volume_flow_initial_l = 0.0_wp
1417	volume_flow_area_l = 0.0_wp
1418
1419	IF ( nxr == nx ) THEN
1420	DO j = nys, nyn
1421	DO k = nzb+1, nzt
1422	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1423	u_init(k) * dzw(k) &
1424	* MERGE( 1.0_wp, 0.0_wp, &
1425	BTEST( wall_flags_total_0(k,j,nxr), 1 )&
1426	)
1427
1428	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
1429	* MERGE( 1.0_wp, 0.0_wp, &
1430	BTEST( wall_flags_total_0(k,j,nxr), 1 )&
1431	)
1432	ENDDO
1433	ENDDO
1434	ENDIF
1435
1436	IF ( nyn == ny ) THEN
1437	DO i = nxl, nxr
1438	DO k = nzb+1, nzt
1439	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1440	v_init(k) * dzw(k) &
1441	* MERGE( 1.0_wp, 0.0_wp, &
1442	BTEST( wall_flags_total_0(k,nyn,i), 2 )&
1443	)
1444	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
1445	* MERGE( 1.0_wp, 0.0_wp, &
1446	BTEST( wall_flags_total_0(k,nyn,i), 2 )&
1447	)
1448	ENDDO
1449	ENDDO
1450	ENDIF
1451
1452	#if defined( __parallel )
1453	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1454	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1455	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1456	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1457
1458	#else
1459	volume_flow_initial = volume_flow_initial_l
1460	volume_flow_area = volume_flow_area_l
1461	#endif
1462
1463	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1464
1465	volume_flow_initial_l = 0.0_wp
1466	volume_flow_area_l = 0.0_wp
1467
1468	IF ( nxr == nx ) THEN
1469	DO j = nys, nyn
1470	DO k = nzb+1, nzt
1471	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1472	hom_sum(k,1,0) * dzw(k) &
1473	* MERGE( 1.0_wp, 0.0_wp, &
1474	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
1475	)
1476	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
1477	* MERGE( 1.0_wp, 0.0_wp, &
1478	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
1479	)
1480	ENDDO
1481	ENDDO
1482	ENDIF
1483
1484	IF ( nyn == ny ) THEN
1485	DO i = nxl, nxr
1486	DO k = nzb+1, nzt
1487	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1488	hom_sum(k,2,0) * dzw(k) &
1489	* MERGE( 1.0_wp, 0.0_wp, &
1490	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
1491	)
1492	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
1493	* MERGE( 1.0_wp, 0.0_wp, &
1494	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
1495	)
1496	ENDDO
1497	ENDDO
1498	ENDIF
1499
1500	#if defined( __parallel )
1501	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1502	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1503	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1504	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1505
1506	#else
1507	volume_flow_initial = volume_flow_initial_l
1508	volume_flow_area = volume_flow_area_l
1509	#endif
1510
1511	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1512
1513	volume_flow_initial_l = 0.0_wp
1514	volume_flow_area_l = 0.0_wp
1515
1516	IF ( nxr == nx ) THEN
1517	DO j = nys, nyn
1518	DO k = nzb+1, nzt
1519	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1520	u(k,j,nx) * dzw(k) &
1521	* MERGE( 1.0_wp, 0.0_wp, &
1522	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
1523	)
1524	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
1525	* MERGE( 1.0_wp, 0.0_wp, &
1526	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
1527	)
1528	ENDDO
1529	ENDDO
1530	ENDIF
1531
1532	IF ( nyn == ny ) THEN
1533	DO i = nxl, nxr
1534	DO k = nzb+1, nzt
1535	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1536	v(k,ny,i) * dzw(k) &
1537	* MERGE( 1.0_wp, 0.0_wp, &
1538	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
1539	)
1540	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
1541	* MERGE( 1.0_wp, 0.0_wp, &
1542	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
1543	)
1544	ENDDO
1545	ENDDO
1546	ENDIF
1547
1548	#if defined( __parallel )
1549	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1550	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1551	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1552	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1553
1554	#else
1555	volume_flow_initial = volume_flow_initial_l
1556	volume_flow_area = volume_flow_area_l
1557	#endif
1558
1559	ENDIF
1560
1561	!
1562	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
1563	!-- from u\|v_bulk instead
1564	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
1565	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
1566	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
1567	ENDIF
1568
1569	ENDIF
1570	!
1571	!-- In the following, surface properties can be further initialized with
1572	!-- input from static driver file.
1573	!-- At the moment this affects only default surfaces. For example,
1574	!-- roughness length or sensible / latent heat fluxes can be initialized
1575	!-- heterogeneously for default surfaces. Therefore, a generic routine
1576	!-- from netcdf_data_input_mod is called to read a 2D array.
1577	IF ( input_pids_static ) THEN
1578	!
1579	!-- Allocate memory for possible static input
1580	ALLOCATE( tmp_2d%var(nys:nyn,nxl:nxr) )
1581	tmp_2d%var = 0.0_wp
1582	!
1583	!-- Open the static input file
1584	#if defined( __netcdf )
1585	CALL open_read_file( TRIM( input_file_static ) // &
1586	TRIM( coupling_char ), &
1587	pids_id )
1588
1589	CALL inquire_num_variables( pids_id, num_var_pids )
1590	!
1591	!-- Allocate memory to store variable names and read them
1592	ALLOCATE( vars_pids(1:num_var_pids) )
1593	CALL inquire_variable_names( pids_id, vars_pids )
1594	!
1595	!-- Input roughness length.
1596	IF ( check_existence( vars_pids, 'z0' ) ) THEN
1597	!
1598	!-- Read _FillValue attribute
1599	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, &
1600	.FALSE., 'z0' )
1601	!
1602	!-- Read variable
1603	CALL get_variable( pids_id, 'z0', tmp_2d%var, &
1604	nxl, nxr, nys, nyn )
1605	!
1606	!-- Initialize roughness length. Note, z0 will be only initialized at
1607	!-- default-type surfaces. At natural or urban z0 is implicitly
1608	!-- initialized by the respective parameter lists.
1609	!-- Initialize horizontal surface elements.
1610	CALL init_single_surface_properties( surf_def_h(0)%z0, &
1611	tmp_2d%var, &
1612	surf_def_h(0)%ns, &
1613	tmp_2d%fill, &
1614	surf_def_h(0)%i, &
1615	surf_def_h(0)%j )
1616	!
1617	!-- Initialize roughness also at vertical surface elements.
1618	!-- Note, the actual 2D input arrays are only defined on the
1619	!-- subdomain. Therefore, pass the index arrays with their respective
1620	!-- offset values.
1621	DO l = 0, 3
1622	CALL init_single_surface_properties( &
1623	surf_def_v(l)%z0, &
1624	tmp_2d%var, &
1625	surf_def_v(l)%ns, &
1626	tmp_2d%fill, &
1627	surf_def_v(l)%i + surf_def_v(l)%ioff, &
1628	surf_def_v(l)%j + surf_def_v(l)%joff )
1629	ENDDO
1630
1631	ENDIF
1632	!
1633	!-- Input surface sensible heat flux.
1634	IF ( check_existence( vars_pids, 'shf' ) ) THEN
1635	!
1636	!-- Read _FillValue attribute
1637	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, &
1638	.FALSE., 'shf' )
1639	!
1640	!-- Read variable
1641	CALL get_variable( pids_id, 'shf', tmp_2d%var, &
1642	nxl, nxr, nys, nyn )
1643	!
1644	!-- Initialize heat flux. Note, shf will be only initialized at
1645	!-- default-type surfaces. At natural or urban shf is implicitly
1646	!-- initialized by the respective parameter lists.
1647	!-- Initialize horizontal surface elements.
1648	CALL init_single_surface_properties( surf_def_h(0)%shf, &
1649	tmp_2d%var, &
1650	surf_def_h(0)%ns, &
1651	tmp_2d%fill, &
1652	surf_def_h(0)%i, &
1653	surf_def_h(0)%j )
1654	!
1655	!-- Initialize heat flux also at vertical surface elements.
1656	!-- Note, the actual 2D input arrays are only defined on the
1657	!-- subdomain. Therefore, pass the index arrays with their respective
1658	!-- offset values.
1659	DO l = 0, 3
1660	CALL init_single_surface_properties( &
1661	surf_def_v(l)%shf, &
1662	tmp_2d%var, &
1663	surf_def_v(l)%ns, &
1664	tmp_2d%fill, &
1665	surf_def_v(l)%i + surf_def_v(l)%ioff, &
1666	surf_def_v(l)%j + surf_def_v(l)%joff )
1667	ENDDO
1668
1669	ENDIF
1670	!
1671	!-- Input surface sensible heat flux.
1672	IF ( check_existence( vars_pids, 'qsws' ) ) THEN
1673	!
1674	!-- Read _FillValue attribute
1675	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, &
1676	.FALSE., 'qsws' )
1677	!
1678	!-- Read variable
1679	CALL get_variable( pids_id, 'qsws', tmp_2d%var, &
1680	nxl, nxr, nys, nyn )
1681	!
1682	!-- Initialize latent heat flux. Note, qsws will be only initialized at
1683	!-- default-type surfaces. At natural or urban qsws is implicitly
1684	!-- initialized by the respective parameter lists.
1685	!-- Initialize horizontal surface elements.
1686	CALL init_single_surface_properties( surf_def_h(0)%qsws, &
1687	tmp_2d%var, &
1688	surf_def_h(0)%ns, &
1689	tmp_2d%fill, &
1690	surf_def_h(0)%i, &
1691	surf_def_h(0)%j )
1692	!
1693	!-- Initialize latent heat flux also at vertical surface elements.
1694	!-- Note, the actual 2D input arrays are only defined on the
1695	!-- subdomain. Therefore, pass the index arrays with their respective
1696	!-- offset values.
1697	DO l = 0, 3
1698	CALL init_single_surface_properties( &
1699	surf_def_v(l)%qsws, &
1700	tmp_2d%var, &
1701	surf_def_v(l)%ns, &
1702	tmp_2d%fill, &
1703	surf_def_v(l)%i + surf_def_v(l)%ioff, &
1704	surf_def_v(l)%j + surf_def_v(l)%joff )
1705	ENDDO
1706
1707	ENDIF
1708	!
1709	!-- Additional variables, can be initialized the
1710	!-- same way.
1711
1712	!
1713	!-- Finally, close the input file and deallocate temporary arrays
1714	DEALLOCATE( vars_pids )
1715
1716	CALL close_input_file( pids_id )
1717	#endif
1718	DEALLOCATE( tmp_2d%var )
1719	ENDIF
1720	!
1721	!-- Finally, if random_heatflux is set, disturb shf at horizontal
1722	!-- surfaces. Actually, this should be done in surface_mod, where all other
1723	!-- initializations of surface quantities are done. However, this
1724	!-- would create a ring dependency, hence, it is done here. Maybe delete
1725	!-- disturb_heatflux and tranfer the respective code directly into the
1726	!-- initialization in surface_mod.
1727	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1728	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1729
1730	IF ( use_surface_fluxes .AND. constant_heatflux .AND. &
1731	random_heatflux ) THEN
1732	IF ( surf_def_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_def_h(0) )
1733	IF ( surf_lsm_h%ns >= 1 ) CALL disturb_heatflux( surf_lsm_h )
1734	IF ( surf_usm_h%ns >= 1 ) CALL disturb_heatflux( surf_usm_h )
1735	ENDIF
1736	ENDIF
1737
1738	!
1739	!-- Compute total sum of grid points and the mean surface level height for each
1740	!-- statistic region. These are mainly used for horizontal averaging of
1741	!-- turbulence statistics.
1742	!-- ngp_2dh: number of grid points of a horizontal cross section through the
1743	!-- respective statistic region
1744	!-- ngp_3d: number of grid points of the respective statistic region
1745	ngp_2dh_outer_l = 0
1746	ngp_2dh_outer = 0
1747	ngp_2dh_s_inner_l = 0
1748	ngp_2dh_s_inner = 0
1749	ngp_2dh_l = 0
1750	ngp_2dh = 0
1751	ngp_3d_inner_l = 0.0_wp
1752	ngp_3d_inner = 0
1753	ngp_3d = 0
1754	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
1755
1756	mean_surface_level_height = 0.0_wp
1757	mean_surface_level_height_l = 0.0_wp
1758	!
1759	!-- To do: New concept for these non-topography grid points!
1760	DO sr = 0, statistic_regions
1761	DO i = nxl, nxr
1762	DO j = nys, nyn
1763	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
1764	!
1765	!-- All xy-grid points
1766	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
1767	!
1768	!-- Determine mean surface-level height. In case of downward-
1769	!-- facing walls are present, more than one surface level exist.
1770	!-- In this case, use the lowest surface-level height.
1771	IF ( surf_def_h(0)%start_index(j,i) <= &
1772	surf_def_h(0)%end_index(j,i) ) THEN
1773	m = surf_def_h(0)%start_index(j,i)
1774	k = surf_def_h(0)%k(m)
1775	mean_surface_level_height_l(sr) = &
1776	mean_surface_level_height_l(sr) + zw(k-1)
1777	ENDIF
1778	IF ( surf_lsm_h%start_index(j,i) <= &
1779	surf_lsm_h%end_index(j,i) ) THEN
1780	m = surf_lsm_h%start_index(j,i)
1781	k = surf_lsm_h%k(m)
1782	mean_surface_level_height_l(sr) = &
1783	mean_surface_level_height_l(sr) + zw(k-1)
1784	ENDIF
1785	IF ( surf_usm_h%start_index(j,i) <= &
1786	surf_usm_h%end_index(j,i) ) THEN
1787	m = surf_usm_h%start_index(j,i)
1788	k = surf_usm_h%k(m)
1789	mean_surface_level_height_l(sr) = &
1790	mean_surface_level_height_l(sr) + zw(k-1)
1791	ENDIF
1792
1793	k_surf = k - 1
1794
1795	DO k = nzb, nzt+1
1796	!
1797	!-- xy-grid points above topography
1798	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + &
1799	MERGE( 1, 0, BTEST( wall_flags_total_0(k,j,i), 24 ) )
1800
1801	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + &
1802	MERGE( 1, 0, BTEST( wall_flags_total_0(k,j,i), 22 ) )
1803
1804	ENDDO
1805	!
1806	!-- All grid points of the total domain above topography
1807	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + ( nz - k_surf + 2 )
1808
1809
1810
1811	ENDIF
1812	ENDDO
1813	ENDDO
1814	ENDDO
1815
1816	sr = statistic_regions + 1
1817	#if defined( __parallel )
1818	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1819	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
1820	comm2d, ierr )
1821	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1822	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
1823	MPI_INTEGER, MPI_SUM, comm2d, ierr )
1824	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1825	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
1826	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
1827	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1828	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
1829	MPI_SUM, comm2d, ierr )
1830	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
1831	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1832	CALL MPI_ALLREDUCE( mean_surface_level_height_l(0), &
1833	mean_surface_level_height(0), sr, MPI_REAL, &
1834	MPI_SUM, comm2d, ierr )
1835	mean_surface_level_height = mean_surface_level_height / REAL( ngp_2dh )
1836	#else
1837	ngp_2dh = ngp_2dh_l
1838	ngp_2dh_outer = ngp_2dh_outer_l
1839	ngp_2dh_s_inner = ngp_2dh_s_inner_l
1840	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
1841	mean_surface_level_height = mean_surface_level_height_l / REAL( ngp_2dh_l )
1842	#endif
1843
1844	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
1845	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
1846
1847	!
1848	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
1849	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
1850	!-- the respective subdomain lie below the surface topography
1851	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
1852	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
1853	ngp_3d_inner(:) )
1854	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
1855
1856	DEALLOCATE( mean_surface_level_height_l, ngp_2dh_l, ngp_2dh_outer_l, &
1857	ngp_3d_inner_l, ngp_3d_inner_tmp )
1858
1859	!
1860	!-- Initializae 3D offline nesting in COSMO model and read data from
1861	!-- external NetCDF file.
1862	IF ( nesting_offline ) CALL nesting_offl_init
1863	!
1864	!-- Initialize quantities for special advections schemes
1865	CALL init_advec
1866
1867	!
1868	!-- Impose random perturbation on the horizontal velocity field and then
1869	!-- remove the divergences from the velocity field at the initial stage
1870	IF ( create_disturbances .AND. disturbance_energy_limit /= 0.0_wp .AND. &
1871	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1872	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1873
1874	IF ( debug_output ) CALL debug_message( 'creating disturbances + applying pressure solver', 'start' )
1875	!
1876	!-- Needed for both disturb_field and pres
1877	!$ACC DATA &
1878	!$ACC CREATE(tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
1879	!$ACC COPY(u(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
1880	!$ACC COPY(v(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
1881
1882	CALL disturb_field( 'u', tend, u )
1883	CALL disturb_field( 'v', tend, v )
1884
1885	!$ACC DATA &
1886	!$ACC CREATE(d(nzb+1:nzt,nys:nyn,nxl:nxr)) &
1887	!$ACC COPY(w(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
1888	!$ACC COPY(p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
1889	!$ACC COPYIN(rho_air(nzb:nzt+1), rho_air_zw(nzb:nzt+1)) &
1890	!$ACC COPYIN(ddzu(1:nzt+1), ddzw(1:nzt+1)) &
1891	!$ACC COPYIN(wall_flags_total_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
1892	!$ACC COPYIN(bc_h(0:1)) &
1893	!$ACC COPYIN(bc_h(0)%i(1:bc_h(0)%ns)) &
1894	!$ACC COPYIN(bc_h(0)%j(1:bc_h(0)%ns)) &
1895	!$ACC COPYIN(bc_h(0)%k(1:bc_h(0)%ns)) &
1896	!$ACC COPYIN(bc_h(1)%i(1:bc_h(1)%ns)) &
1897	!$ACC COPYIN(bc_h(1)%j(1:bc_h(1)%ns)) &
1898	!$ACC COPYIN(bc_h(1)%k(1:bc_h(1)%ns))
1899
1900	n_sor = nsor_ini
1901	CALL pres
1902	n_sor = nsor
1903
1904	!$ACC END DATA
1905	!$ACC END DATA
1906
1907	IF ( debug_output ) CALL debug_message( 'creating disturbances + applying pressure solver', 'end' )
1908
1909	ENDIF
1910
1911	IF ( .NOT. ocean_mode ) THEN
1912
1913	ALLOCATE( hyp(nzb:nzt+1) )
1914	ALLOCATE( d_exner(nzb:nzt+1) )
1915	ALLOCATE( exner(nzb:nzt+1) )
1916	ALLOCATE( hyrho(nzb:nzt+1) )
1917	!
1918	!-- Check temperature in case of too large domain height
1919	DO k = nzb, nzt+1
1920	IF ( ( pt_surface * exner_function(surface_pressure * 100.0_wp) - g/c_p * zu(k) ) < 0.0_wp ) THEN
1921	WRITE( message_string, * ) 'absolute temperature < 0.0 at zu(', k, &
1922	') = ', zu(k)
1923	CALL message( 'init_3d_model', 'PA0142', 1, 2, 0, 6, 0 )
1924	ENDIF
1925	ENDDO
1926
1927	!
1928	!-- Calculate vertical profile of the hydrostatic pressure (hyp)
1929	hyp = barometric_formula(zu, pt_surface * exner_function(surface_pressure * 100.0_wp), surface_pressure * 100.0_wp)
1930	d_exner = exner_function_invers(hyp)
1931	exner = 1.0_wp / exner_function_invers(hyp)
1932	hyrho = ideal_gas_law_rho_pt(hyp, pt_init)
1933	!
1934	!-- Compute reference density
1935	rho_surface = ideal_gas_law_rho(surface_pressure * 100.0_wp, pt_surface * exner_function(surface_pressure * 100.0_wp))
1936
1937	ENDIF
1938
1939	!
1940	!-- If required, initialize particles
1941	IF ( agents_active ) CALL mas_init
1942	!
1943	!-- Initialization of synthetic turbulence generator
1944	IF ( use_syn_turb_gen ) CALL stg_init
1945	!
1946	!-- Initializing actions for all other modules
1947	CALL module_interface_init
1948	!
1949	!-- Initialize surface layer (done after LSM as roughness length are required
1950	!-- for initialization
1951	IF ( constant_flux_layer ) CALL init_surface_layer_fluxes
1952	!
1953	!-- Initialize surface data output
1954	IF ( surface_output ) CALL surface_data_output_init
1955	!
1956	!-- Initialize the ws-scheme.
1957	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
1958	!
1959	!-- Perform post-initializing checks for all other modules
1960	CALL module_interface_init_checks
1961
1962	!
1963	!-- Initialize surface forcing corresponding to large-scale forcing. Therein,
1964	!-- initialize heat-fluxes, etc. via datatype. Revise it later!
1965	IF ( large_scale_forcing .AND. lsf_surf ) THEN
1966	IF ( use_surface_fluxes .AND. constant_heatflux ) THEN
1967	CALL ls_forcing_surf ( simulated_time )
1968	ENDIF
1969	ENDIF
1970	!
1971	!-- Setting weighting factors for calculation of perturbation pressure
1972	!-- and turbulent quantities from the RK substeps
1973	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
1974
1975	weight_substep(1) = 1._wp/6._wp
1976	weight_substep(2) = 3._wp/10._wp
1977	weight_substep(3) = 8._wp/15._wp
1978
1979	weight_pres(1) = 1._wp/3._wp
1980	weight_pres(2) = 5._wp/12._wp
1981	weight_pres(3) = 1._wp/4._wp
1982
1983	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
1984
1985	weight_substep(1) = 1._wp/2._wp
1986	weight_substep(2) = 1._wp/2._wp
1987
1988	weight_pres(1) = 1._wp/2._wp
1989	weight_pres(2) = 1._wp/2._wp
1990
1991	ELSE ! for Euler-method
1992
1993	weight_substep(1) = 1.0_wp
1994	weight_pres(1) = 1.0_wp
1995
1996	ENDIF
1997
1998	!
1999	!-- Initialize Rayleigh damping factors
2000	rdf = 0.0_wp
2001	rdf_sc = 0.0_wp
2002	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
2003
2004	IF ( .NOT. ocean_mode ) THEN
2005	DO k = nzb+1, nzt
2006	IF ( zu(k) >= rayleigh_damping_height ) THEN
2007	rdf(k) = rayleigh_damping_factor * &
2008	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
2009	/ ( zu(nzt) - rayleigh_damping_height ) ) &
2010	)**2
2011	ENDIF
2012	ENDDO
2013	ELSE
2014	!
2015	!-- In ocean mode, rayleigh damping is applied in the lower part of the
2016	!-- model domain
2017	DO k = nzt, nzb+1, -1
2018	IF ( zu(k) <= rayleigh_damping_height ) THEN
2019	rdf(k) = rayleigh_damping_factor * &
2020	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
2021	/ ( rayleigh_damping_height - zu(nzb+1) ) ) &
2022	)**2
2023	ENDIF
2024	ENDDO
2025	ENDIF
2026
2027	ENDIF
2028	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
2029
2030	!
2031	!-- Initialize the starting level and the vertical smoothing factor used for
2032	!-- the external pressure gradient
2033	dp_smooth_factor = 1.0_wp
2034	IF ( dp_external ) THEN
2035	!
2036	!-- Set the starting level dp_level_ind_b only if it has not been set before
2037	!-- (e.g. in init_grid).
2038	IF ( dp_level_ind_b == 0 ) THEN
2039	ind_array = MINLOC( ABS( dp_level_b - zu ) )
2040	dp_level_ind_b = ind_array(1) - 1 + nzb
2041	! MINLOC uses lower array bound 1
2042	ENDIF
2043	IF ( dp_smooth ) THEN
2044	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
2045	DO k = dp_level_ind_b+1, nzt
2046	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
2047	( REAL( k - dp_level_ind_b, KIND=wp ) / &
2048	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
2049	ENDDO
2050	ENDIF
2051	ENDIF
2052
2053	!
2054	!-- Initialize damping zone for the potential temperature in case of
2055	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
2056	!-- at the inflow boundary and decreases to zero at pt_damping_width.
2057	ptdf_x = 0.0_wp
2058	ptdf_y = 0.0_wp
2059	IF ( bc_lr_dirrad ) THEN
2060	DO i = nxl, nxr
2061	IF ( ( i * dx ) < pt_damping_width ) THEN
2062	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
2063	REAL( pt_damping_width - i * dx, KIND=wp ) / ( &
2064	REAL( pt_damping_width, KIND=wp ) ) ) )**2
2065	ENDIF
2066	ENDDO
2067	ELSEIF ( bc_lr_raddir ) THEN
2068	DO i = nxl, nxr
2069	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
2070	ptdf_x(i) = pt_damping_factor * &
2071	SIN( pi * 0.5_wp * &
2072	( ( i - nx ) * dx + pt_damping_width ) / &
2073	REAL( pt_damping_width, KIND=wp ) )**2
2074	ENDIF
2075	ENDDO
2076	ELSEIF ( bc_ns_dirrad ) THEN
2077	DO j = nys, nyn
2078	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
2079	ptdf_y(j) = pt_damping_factor * &
2080	SIN( pi * 0.5_wp * &
2081	( ( j - ny ) * dy + pt_damping_width ) / &
2082	REAL( pt_damping_width, KIND=wp ) )**2
2083	ENDIF
2084	ENDDO
2085	ELSEIF ( bc_ns_raddir ) THEN
2086	DO j = nys, nyn
2087	IF ( ( j * dy ) < pt_damping_width ) THEN
2088	ptdf_y(j) = pt_damping_factor * &
2089	SIN( pi * 0.5_wp * &
2090	( pt_damping_width - j * dy ) / &
2091	REAL( pt_damping_width, KIND=wp ) )**2
2092	ENDIF
2093	ENDDO
2094	ENDIF
2095
2096	!
2097	!-- Input binary data file is not needed anymore. This line must be placed
2098	!-- after call of user_init!
2099	CALL close_file( 13 )
2100	!
2101	!-- In case of nesting, put an barrier to assure that all parent and child
2102	!-- domains finished initialization.
2103	#if defined( __parallel )
2104	IF ( nested_run ) CALL MPI_BARRIER( MPI_COMM_WORLD, ierr )
2105	#endif
2106
2107
2108	CALL location_message( 'model initialization', 'finished' )
2109
2110	END SUBROUTINE init_3d_model

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source: palm/trunk/SOURCE/init_3d_model.f90 @ 4600

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