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source: palm/trunk/SOURCE/init_3d_model.f90 @ 2576

Last change on this file since 2576 was 2564, checked in by Giersch, 7 years ago

Bugfix: Variable wind_turbine changed to module control_parameters

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1	!> @file init_3d_model.f90
2	!------------------------------------------------------------------------------!
3	! This file is part of PALM.
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 1997-2017 Leibniz Universitaet Hannover
18	!------------------------------------------------------------------------------!
19	!
20	! Current revisions:
21	! ------------------
22	!
23	!
24	! Former revisions:
25	! -----------------
26	! $Id: init_3d_model.f90 2564 2017-10-19 15:56:56Z Giersch $
27	! Variable wind_turbine was added to control_parameters.
28	!
29	! 2550 2017-10-16 17:12:01Z boeske
30	! Modifications to cyclic fill method and turbulence recycling method in case of
31	! complex terrain simulations
32	!
33	! 2513 2017-10-04 09:24:39Z kanani
34	! Bugfix in storing initial scalar profile (wrong index)
35	!
36	! 2350 2017-08-15 11:48:26Z kanani
37	! Bugfix in nopointer version
38	!
39	! 2339 2017-08-07 13:55:26Z gronemeier
40	! corrected timestamp in header
41	!
42	! 2338 2017-08-07 12:15:38Z gronemeier
43	! Modularize 1D model
44	!
45	! 2329 2017-08-03 14:24:56Z knoop
46	! Removed temporary bugfix (r2327) as bug is properly resolved by this revision
47	!
48	! 2327 2017-08-02 07:40:57Z maronga
49	! Temporary bugfix
50	!
51	! 2320 2017-07-21 12:47:43Z suehring
52	! Modularize large-scale forcing and nudging
53	!
54	! 2292 2017-06-20 09:51:42Z schwenkel
55	! Implementation of new microphysic scheme: cloud_scheme = 'morrison'
56	! includes two more prognostic equations for cloud drop concentration (nc)
57	! and cloud water content (qc).
58	!
59	! 2277 2017-06-12 10:47:51Z kanani
60	! Removed unused variable sums_up_fraction_l
61	!
62	! 2270 2017-06-09 12:18:47Z maronga
63	! dots_num must be increased when LSM and/or radiation is used
64	!
65	! 2259 2017-06-08 09:09:11Z gronemeier
66	! Implemented synthetic turbulence generator
67	!
68	! 2252 2017-06-07 09:35:37Z knoop
69	! rho_air now depending on surface_pressure even in Boussinesq mode
70	!
71	! 2233 2017-05-30 18:08:54Z suehring
72	!
73	! 2232 2017-05-30 17:47:52Z suehring
74	! Adjustments to new topography and surface concept:
75	! - Modify passed parameters for disturb_field
76	! - Topography representation via flags
77	! - Remove unused arrays.
78	! - Move initialization of surface-related quantities to surface_mod
79	!
80	! 2172 2017-03-08 15:55:25Z knoop
81	! Bugfix: moved parallel random generator initialization into its module
82	!
83	! 2118 2017-01-17 16:38:49Z raasch
84	! OpenACC directives removed
85	!
86	! 2037 2016-10-26 11:15:40Z knoop
87	! Anelastic approximation implemented
88	!
89	! 2031 2016-10-21 15:11:58Z knoop
90	! renamed variable rho to rho_ocean
91	!
92	! 2011 2016-09-19 17:29:57Z kanani
93	! Flag urban_surface is now defined in module control_parameters.
94	!
95	! 2007 2016-08-24 15:47:17Z kanani
96	! Added support for urban surface model,
97	! adjusted location_message in case of plant_canopy
98	!
99	! 2000 2016-08-20 18:09:15Z knoop
100	! Forced header and separation lines into 80 columns
101	!
102	! 1992 2016-08-12 15:14:59Z suehring
103	! Initializaton of scalarflux at model top
104	! Bugfixes in initialization of surface and top salinity flux, top scalar and
105	! humidity fluxes
106	!
107	! 1960 2016-07-12 16:34:24Z suehring
108	! Separate humidity and passive scalar
109	! Increase dimension for mean_inflow_profiles
110	! Remove inadvertent write-statement
111	! Bugfix, large-scale forcing is still not implemented for passive scalars
112	!
113	! 1957 2016-07-07 10:43:48Z suehring
114	! flight module added
115	!
116	! 1920 2016-05-30 10:50:15Z suehring
117	! Initialize us with very small number to avoid segmentation fault during
118	! calculation of Obukhov length
119	!
120	! 1918 2016-05-27 14:35:57Z raasch
121	! intermediate_timestep_count is set 0 instead 1 for first call of pres,
122	! bugfix: initialization of local sum arrays are moved to the beginning of the
123	! routine because otherwise results from pres are overwritten
124	!
125	! 1914 2016-05-26 14:44:07Z witha
126	! Added initialization of the wind turbine model
127	!
128	! 1878 2016-04-19 12:30:36Z hellstea
129	! The zeroth element of weight_pres removed as unnecessary
130	!
131	! 1849 2016-04-08 11:33:18Z hoffmann
132	! Adapted for modularization of microphysics.
133	! precipitation_amount, precipitation_rate, prr moved to arrays_3d.
134	! Initialization of nc_1d, nr_1d, pt_1d, qc_1d, qr_1d, q_1d moved to
135	! microphysics_init.
136	!
137	! 1845 2016-04-08 08:29:13Z raasch
138	! nzb_2d replaced by nzb_u\|v_inner
139	!
140	! 1833 2016-04-07 14:23:03Z raasch
141	! initialization of spectra quantities moved to spectra_mod
142	!
143	! 1831 2016-04-07 13:15:51Z hoffmann
144	! turbulence renamed collision_turbulence
145	!
146	! 1826 2016-04-07 12:01:39Z maronga
147	! Renamed radiation calls.
148	! Renamed canopy model calls.
149	!
150	! 1822 2016-04-07 07:49:42Z hoffmann
151	! icloud_scheme replaced by microphysics_*
152	!
153	! 1817 2016-04-06 15:44:20Z maronga
154	! Renamed lsm calls.
155	!
156	! 1815 2016-04-06 13:49:59Z raasch
157	! zero-settings for velocities inside topography re-activated (was deactivated
158	! in r1762)
159	!
160	! 1788 2016-03-10 11:01:04Z maronga
161	! Added z0q.
162	! Syntax layout improved.
163	!
164	! 1783 2016-03-06 18:36:17Z raasch
165	! netcdf module name changed + related changes
166	!
167	! 1764 2016-02-28 12:45:19Z raasch
168	! bugfix: increase size of volume_flow_area_l and volume_flow_initial_l by 1
169	!
170	! 1762 2016-02-25 12:31:13Z hellstea
171	! Introduction of nested domain feature
172	!
173	! 1738 2015-12-18 13:56:05Z raasch
174	! calculate mean surface level height for each statistic region
175	!
176	! 1734 2015-12-02 12:17:12Z raasch
177	! no initial disturbances in case that the disturbance energy limit has been
178	! set zero
179	!
180	! 1707 2015-11-02 15:24:52Z maronga
181	! Bugfix: transfer of Richardson number from 1D model to Obukhov length caused
182	! devision by zero in neutral stratification
183	!
184	! 1691 2015-10-26 16:17:44Z maronga
185	! Call to init_surface_layer added. rif is replaced by ol and zeta.
186	!
187	! 1682 2015-10-07 23:56:08Z knoop
188	! Code annotations made doxygen readable
189	!
190	! 1615 2015-07-08 18:49:19Z suehring
191	! Enable turbulent inflow for passive_scalar and humidity
192	!
193	! 1585 2015-04-30 07:05:52Z maronga
194	! Initialization of radiation code is now done after LSM initializtion
195	!
196	! 1575 2015-03-27 09:56:27Z raasch
197	! adjustments for psolver-queries
198	!
199	! 1551 2015-03-03 14:18:16Z maronga
200	! Allocation of land surface arrays is now done in the subroutine lsm_init_arrays,
201	! which is part of land_surface_model.
202	!
203	! 1507 2014-12-10 12:14:18Z suehring
204	! Bugfix: set horizontal velocity components to zero inside topography
205	!
206	! 1496 2014-12-02 17:25:50Z maronga
207	! Added initialization of the land surface and radiation schemes
208	!
209	! 1484 2014-10-21 10:53:05Z kanani
210	! Changes due to new module structure of the plant canopy model:
211	! canopy-related initialization (e.g. lad and canopy_heat_flux) moved to new
212	! subroutine init_plant_canopy within the module plant_canopy_model_mod,
213	! call of subroutine init_plant_canopy added.
214	!
215	! 1431 2014-07-15 14:47:17Z suehring
216	! var_d added, in order to normalize spectra.
217	!
218	! 1429 2014-07-15 12:53:45Z knoop
219	! Ensemble run capability added to parallel random number generator
220	!
221	! 1411 2014-05-16 18:01:51Z suehring
222	! Initial horizontal velocity profiles were not set to zero at the first vertical
223	! grid level in case of non-cyclic lateral boundary conditions.
224	!
225	! 1406 2014-05-16 13:47:01Z raasch
226	! bugfix: setting of initial velocities at k=1 to zero not in case of a
227	! no-slip boundary condition for uv
228	!
229	! 1402 2014-05-09 14:25:13Z raasch
230	! location messages modified
231	!
232	! 1400 2014-05-09 14:03:54Z knoop
233	! Parallel random number generator added
234	!
235	! 1384 2014-05-02 14:31:06Z raasch
236	! location messages added
237	!
238	! 1361 2014-04-16 15:17:48Z hoffmann
239	! tend_* removed
240	! Bugfix: w_subs is not allocated anymore if it is already allocated
241	!
242	! 1359 2014-04-11 17:15:14Z hoffmann
243	! module lpm_init_mod added to use statements, because lpm_init has become a
244	! module
245	!
246	! 1353 2014-04-08 15:21:23Z heinze
247	! REAL constants provided with KIND-attribute
248	!
249	! 1340 2014-03-25 19:45:13Z kanani
250	! REAL constants defined as wp-kind
251	!
252	! 1322 2014-03-20 16:38:49Z raasch
253	! REAL constants defined as wp-kind
254	! module interfaces removed
255	!
256	! 1320 2014-03-20 08:40:49Z raasch
257	! ONLY-attribute added to USE-statements,
258	! kind-parameters added to all INTEGER and REAL declaration statements,
259	! kinds are defined in new module kinds,
260	! revision history before 2012 removed,
261	! comment fields (!:) to be used for variable explanations added to
262	! all variable declaration statements
263	!
264	! 1316 2014-03-17 07:44:59Z heinze
265	! Bugfix: allocation of w_subs
266	!
267	! 1299 2014-03-06 13:15:21Z heinze
268	! Allocate w_subs due to extension of large scale subsidence in combination
269	! with large scale forcing data (LSF_DATA)
270	!
271	! 1241 2013-10-30 11:36:58Z heinze
272	! Overwrite initial profiles in case of nudging
273	! Inititialize shf and qsws in case of large_scale_forcing
274	!
275	! 1221 2013-09-10 08:59:13Z raasch
276	! +rflags_s_inner in copyin statement, use copyin for most arrays instead of
277	! copy
278	!
279	! 1212 2013-08-15 08:46:27Z raasch
280	! array tri is allocated and included in data copy statement
281	!
282	! 1195 2013-07-01 12:27:57Z heinze
283	! Bugfix: move allocation of ref_state to parin.f90 and read_var_list.f90
284	!
285	! 1179 2013-06-14 05:57:58Z raasch
286	! allocate and set ref_state to be used in buoyancy terms
287	!
288	! 1171 2013-05-30 11:27:45Z raasch
289	! diss array is allocated with full size if accelerator boards are used
290	!
291	! 1159 2013-05-21 11:58:22Z fricke
292	! -bc_lr_dirneu, bc_lr_neudir, bc_ns_dirneu, bc_ns_neudir
293	!
294	! 1153 2013-05-10 14:33:08Z raasch
295	! diss array is allocated with dummy elements even if it is not needed
296	! (required by PGI 13.4 / CUDA 5.0)
297	!
298	! 1115 2013-03-26 18:16:16Z hoffmann
299	! unused variables removed
300	!
301	! 1113 2013-03-10 02:48:14Z raasch
302	! openACC directive modified
303	!
304	! 1111 2013-03-08 23:54:10Z raasch
305	! openACC directives added for pres
306	! array diss allocated only if required
307	!
308	! 1092 2013-02-02 11:24:22Z raasch
309	! unused variables removed
310	!
311	! 1065 2012-11-22 17:42:36Z hoffmann
312	! allocation of diss (dissipation rate) in case of turbulence = .TRUE. added
313	!
314	! 1053 2012-11-13 17:11:03Z hoffmann
315	! allocation and initialisation of necessary data arrays for the two-moment
316	! cloud physics scheme the two new prognostic equations (nr, qr):
317	! +dr, lambda_r, mu_r, sed_, xr, s, sws, swst, , _p, t_m, _1, _2, _3,
318	! +tend_*, prr
319	!
320	! 1036 2012-10-22 13:43:42Z raasch
321	! code put under GPL (PALM 3.9)
322	!
323	! 1032 2012-10-21 13:03:21Z letzel
324	! save memory by not allocating pt_2 in case of neutral = .T.
325	!
326	! 1025 2012-10-07 16:04:41Z letzel
327	! bugfix: swap indices of mask for ghost boundaries
328	!
329	! 1015 2012-09-27 09:23:24Z raasch
330	! mask is set to zero for ghost boundaries
331	!
332	! 1010 2012-09-20 07:59:54Z raasch
333	! cpp switch __nopointer added for pointer free version
334	!
335	! 1003 2012-09-14 14:35:53Z raasch
336	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
337	!
338	! 1001 2012-09-13 14:08:46Z raasch
339	! all actions concerning leapfrog scheme removed
340	!
341	! 996 2012-09-07 10:41:47Z raasch
342	! little reformatting
343	!
344	! 978 2012-08-09 08:28:32Z fricke
345	! outflow damping layer removed
346	! roughness length for scalar quantites z0h added
347	! damping zone for the potential temperatur in case of non-cyclic lateral
348	! boundaries added
349	! initialization of ptdf_x, ptdf_y
350	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
351	!
352	! 849 2012-03-15 10:35:09Z raasch
353	! init_particles renamed lpm_init
354	!
355	! 825 2012-02-19 03:03:44Z raasch
356	! wang_collision_kernel renamed wang_kernel
357	!
358	! Revision 1.1 1998/03/09 16:22:22 raasch
359	! Initial revision
360	!
361	!
362	! Description:
363	! ------------
364	!> Allocation of arrays and initialization of the 3D model via
365	!> a) pre-run the 1D model
366	!> or
367	!> b) pre-set constant linear profiles
368	!> or
369	!> c) read values of a previous run
370	!------------------------------------------------------------------------------!
371	SUBROUTINE init_3d_model
372
373
374	USE advec_ws
375
376	USE arrays_3d
377
378	USE cloud_parameters, &
379	ONLY: cp, l_v, r_d
380
381	USE constants, &
382	ONLY: pi
383
384	USE control_parameters
385
386	USE flight_mod, &
387	ONLY: flight_init
388
389	USE grid_variables, &
390	ONLY: dx, dy, ddx2_mg, ddy2_mg
391
392	USE indices
393
394	USE lpm_init_mod, &
395	ONLY: lpm_init
396
397	USE kinds
398
399	USE land_surface_model_mod, &
400	ONLY: lsm_init, lsm_init_arrays
401
402	USE lsf_nudging_mod, &
403	ONLY: lsf_init, ls_forcing_surf, nudge_init
404
405	USE microphysics_mod, &
406	ONLY: collision_turbulence, microphysics_init
407
408	USE model_1d_mod, &
409	ONLY: e1d, init_1d_model, kh1d, km1d, l1d, rif1d, u1d, us1d, usws1d, &
410	v1d, vsws1d
411
412	USE netcdf_interface, &
413	ONLY: dots_max, dots_num
414
415	USE particle_attributes, &
416	ONLY: particle_advection, use_sgs_for_particles, wang_kernel
417
418	USE pegrid
419
420	USE plant_canopy_model_mod, &
421	ONLY: pcm_init, plant_canopy
422
423	USE radiation_model_mod, &
424	ONLY: radiation_init, radiation, radiation_scheme
425
426	USE random_function_mod
427
428	USE random_generator_parallel, &
429	ONLY: init_parallel_random_generator
430
431	USE statistics, &
432	ONLY: hom, hom_sum, mean_surface_level_height, pr_palm, rmask, &
433	statistic_regions, sums, sums_divnew_l, sums_divold_l, sums_l, &
434	sums_l_l, sums_wsts_bc_l, ts_value, &
435	weight_pres, weight_substep
436
437	USE synthetic_turbulence_generator_mod, &
438	ONLY: stg_init, use_synthetic_turbulence_generator
439
440	USE surface_layer_fluxes_mod, &
441	ONLY: init_surface_layer_fluxes
442
443	USE surface_mod, &
444	ONLY : init_surface_arrays, init_surfaces, surf_def_h, surf_lsm_h, &
445	surf_usm_h, get_topography_top_index
446
447	USE transpose_indices
448
449	USE urban_surface_mod, &
450	ONLY: usm_init_urban_surface
451
452	USE wind_turbine_model_mod, &
453	ONLY: wtm_init, wtm_init_arrays
454
455	IMPLICIT NONE
456
457	INTEGER(iwp) :: i !<
458	INTEGER(iwp) :: ind_array(1) !<
459	INTEGER(iwp) :: j !<
460	INTEGER(iwp) :: k !<
461	INTEGER(iwp) :: k_surf !< surface level index
462	INTEGER(iwp) :: m !< index of surface element in surface data type
463	INTEGER(iwp) :: sr !< index of statistic region
464
465	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !<
466
467	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !<
468	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !<
469
470	REAL(wp) :: t_surface !< air temperature at the surface
471
472	REAL(wp), DIMENSION(:), ALLOCATABLE :: p_hydrostatic !< hydrostatic pressure
473
474	INTEGER(iwp) :: l !< loop variable
475	INTEGER(iwp) :: nzt_l !< index of top PE boundary for multigrid level
476	REAL(wp) :: dx_l !< grid spacing along x on different multigrid level
477	REAL(wp) :: dy_l !< grid spacing along y on different multigrid level
478
479	REAL(wp), DIMENSION(1:3) :: volume_flow_area_l !<
480	REAL(wp), DIMENSION(1:3) :: volume_flow_initial_l !<
481
482	REAL(wp), DIMENSION(:), ALLOCATABLE :: mean_surface_level_height_l !<
483	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !<
484	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !<
485
486	INTEGER(iwp) :: nz_u_shift !<
487	INTEGER(iwp) :: nz_v_shift !<
488	INTEGER(iwp) :: nz_w_shift !<
489	INTEGER(iwp) :: nz_s_shift !<
490	INTEGER(iwp) :: nz_u_shift_l !<
491	INTEGER(iwp) :: nz_v_shift_l !<
492	INTEGER(iwp) :: nz_w_shift_l !<
493	INTEGER(iwp) :: nz_s_shift_l !<
494
495	CALL location_message( 'allocating arrays', .FALSE. )
496	!
497	!-- Allocate arrays
498	ALLOCATE( mean_surface_level_height(0:statistic_regions), &
499	mean_surface_level_height_l(0:statistic_regions), &
500	ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
501	ngp_3d(0:statistic_regions), &
502	ngp_3d_inner(0:statistic_regions), &
503	ngp_3d_inner_l(0:statistic_regions), &
504	ngp_3d_inner_tmp(0:statistic_regions), &
505	sums_divnew_l(0:statistic_regions), &
506	sums_divold_l(0:statistic_regions) )
507	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
508	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
509	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
510	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
511	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
512	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
513	sums(nzb:nzt+1,pr_palm+max_pr_user), &
514	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
515	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
516	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
517	ts_value(dots_max,0:statistic_regions) )
518	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
519
520	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
521	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
522	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
523	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
524	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
525
526	#if defined( __nopointer )
527	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
528	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
529	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
530	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
531	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
532	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
533	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
534	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
535	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
536	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
537	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
538	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
539	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
540	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
541	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
542	#else
543	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
544	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
545	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
546	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
547	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
548	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
549	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
550	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
551	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
552	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
553	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
554	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
555	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
556	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
557	IF ( .NOT. neutral ) THEN
558	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
559	ENDIF
560	#endif
561
562	!
563	!-- Following array is required for perturbation pressure within the iterative
564	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
565	!-- the weighted average of the substeps and cannot be used in the Poisson
566	!-- solver.
567	IF ( psolver == 'sor' ) THEN
568	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
569	ELSEIF ( psolver(1:9) == 'multigrid' ) THEN
570	!
571	!-- For performance reasons, multigrid is using one ghost layer only
572	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
573	ENDIF
574
575	!
576	!-- Array for storing constant coeffficients of the tridiagonal solver
577	IF ( psolver == 'poisfft' ) THEN
578	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
579	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
580	ENDIF
581
582	IF ( humidity ) THEN
583	!
584	!-- 3D-humidity
585	#if defined( __nopointer )
586	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
587	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
588	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
589	#else
590	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
591	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
592	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
593	#endif
594
595	!
596	!-- 3D-arrays needed for humidity
597	IF ( humidity ) THEN
598	#if defined( __nopointer )
599	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
600	#else
601	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
602	#endif
603
604	IF ( cloud_physics ) THEN
605	!
606	!-- Liquid water content
607	#if defined( __nopointer )
608	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
609	#else
610	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
611	#endif
612
613	!
614	!-- 3D-cloud water content
615	IF ( .NOT. microphysics_morrison ) THEN
616	#if defined( __nopointer )
617	ALLOCATE( qc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
618	#else
619	ALLOCATE( qc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
620	#endif
621	ENDIF
622	!
623	!-- Precipitation amount and rate (only needed if output is switched)
624	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
625	precipitation_rate(nysg:nyng,nxlg:nxrg) )
626
627	!
628	!-- 3d-precipitation rate
629	ALLOCATE( prr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
630
631	IF ( microphysics_morrison ) THEN
632	!
633	!-- 3D-cloud drop water content, cloud drop concentration arrays
634	#if defined( __nopointer )
635	ALLOCATE( nc(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
636	nc_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
637	qc(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
638	qc_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
639	tnc_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
640	tqc_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
641	#else
642	ALLOCATE( nc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
643	nc_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
644	nc_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
645	qc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
646	qc_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
647	qc_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
648	#endif
649	ENDIF
650
651	IF ( microphysics_seifert ) THEN
652	!
653	!-- 3D-rain water content, rain drop concentration arrays
654	#if defined( __nopointer )
655	ALLOCATE( nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
656	nr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
657	qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
658	qr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
659	tnr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
660	tqr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
661	#else
662	ALLOCATE( nr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
663	nr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
664	nr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
665	qr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
666	qr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
667	qr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
668	#endif
669	ENDIF
670
671	ENDIF
672
673	IF ( cloud_droplets ) THEN
674	!
675	!-- Liquid water content, change in liquid water content
676	#if defined( __nopointer )
677	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
678	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
679	#else
680	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
681	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
682	#endif
683	!
684	!-- Real volume of particles (with weighting), volume of particles
685	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
686	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
687	ENDIF
688
689	ENDIF
690
691	ENDIF
692
693
694	IF ( passive_scalar ) THEN
695
696	!
697	!-- 3D scalar arrays
698	#if defined( __nopointer )
699	ALLOCATE( s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
700	s_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
701	ts_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
702	#else
703	ALLOCATE( s_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
704	s_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
705	s_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
706	#endif
707	ENDIF
708
709	IF ( ocean ) THEN
710	#if defined( __nopointer )
711	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
712	rho_ocean(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
713	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
714	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
715	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
716	#else
717	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
718	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
719	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
720	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
721	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
722	prho => prho_1
723	rho_ocean => rho_1 ! routines calc_mean_profile and diffusion_e require
724	! density to be apointer
725	#endif
726	ENDIF
727
728	!
729	!-- Allocation of anelastic and Boussinesq approximation specific arrays
730	ALLOCATE( p_hydrostatic(nzb:nzt+1) )
731	ALLOCATE( rho_air(nzb:nzt+1) )
732	ALLOCATE( rho_air_zw(nzb:nzt+1) )
733	ALLOCATE( drho_air(nzb:nzt+1) )
734	ALLOCATE( drho_air_zw(nzb:nzt+1) )
735
736	!
737	!-- Density profile calculation for anelastic approximation
738	t_surface = pt_surface * ( surface_pressure / 1000.0_wp )**( r_d / cp )
739	IF ( TRIM( approximation ) == 'anelastic' ) THEN
740	DO k = nzb, nzt+1
741	p_hydrostatic(k) = surface_pressure * 100.0_wp * &
742	( 1 - ( g * zu(k) ) / ( cp * t_surface ) &
743	)**( cp / r_d )
744	rho_air(k) = ( p_hydrostatic(k) * &
745	( 100000.0_wp / p_hydrostatic(k) &
746	)**( r_d / cp ) &
747	) / ( r_d * pt_init(k) )
748	ENDDO
749	DO k = nzb, nzt
750	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
751	ENDDO
752	rho_air_zw(nzt+1) = rho_air_zw(nzt) &
753	+ 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
754	ELSE
755	DO k = nzb, nzt+1
756	p_hydrostatic(k) = surface_pressure * 100.0_wp * &
757	( 1 - ( g * zu(nzb) ) / ( cp * t_surface ) &
758	)**( cp / r_d )
759	rho_air(k) = ( p_hydrostatic(k) * &
760	( 100000.0_wp / p_hydrostatic(k) &
761	)**( r_d / cp ) &
762	) / ( r_d * pt_init(nzb) )
763	ENDDO
764	DO k = nzb, nzt
765	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
766	ENDDO
767	rho_air_zw(nzt+1) = rho_air_zw(nzt) &
768	+ 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
769	ENDIF
770
771	!-- compute the inverse density array in order to avoid expencive divisions
772	drho_air = 1.0_wp / rho_air
773	drho_air_zw = 1.0_wp / rho_air_zw
774
775	!
776	!-- Allocation of flux conversion arrays
777	ALLOCATE( heatflux_input_conversion(nzb:nzt+1) )
778	ALLOCATE( waterflux_input_conversion(nzb:nzt+1) )
779	ALLOCATE( momentumflux_input_conversion(nzb:nzt+1) )
780	ALLOCATE( heatflux_output_conversion(nzb:nzt+1) )
781	ALLOCATE( waterflux_output_conversion(nzb:nzt+1) )
782	ALLOCATE( momentumflux_output_conversion(nzb:nzt+1) )
783
784	!
785	!-- calculate flux conversion factors according to approximation and in-/output mode
786	DO k = nzb, nzt+1
787
788	IF ( TRIM( flux_input_mode ) == 'kinematic' ) THEN
789	heatflux_input_conversion(k) = rho_air_zw(k)
790	waterflux_input_conversion(k) = rho_air_zw(k)
791	momentumflux_input_conversion(k) = rho_air_zw(k)
792	ELSEIF ( TRIM( flux_input_mode ) == 'dynamic' ) THEN
793	heatflux_input_conversion(k) = 1.0_wp / cp
794	waterflux_input_conversion(k) = 1.0_wp / l_v
795	momentumflux_input_conversion(k) = 1.0_wp
796	ENDIF
797
798	IF ( TRIM( flux_output_mode ) == 'kinematic' ) THEN
799	heatflux_output_conversion(k) = drho_air_zw(k)
800	waterflux_output_conversion(k) = drho_air_zw(k)
801	momentumflux_output_conversion(k) = drho_air_zw(k)
802	ELSEIF ( TRIM( flux_output_mode ) == 'dynamic' ) THEN
803	heatflux_output_conversion(k) = cp
804	waterflux_output_conversion(k) = l_v
805	momentumflux_output_conversion(k) = 1.0_wp
806	ENDIF
807
808	IF ( .NOT. humidity ) THEN
809	waterflux_input_conversion(k) = 1.0_wp
810	waterflux_output_conversion(k) = 1.0_wp
811	ENDIF
812
813	ENDDO
814
815	!
816	!-- In case of multigrid method, compute grid lengths and grid factors for the
817	!-- grid levels with respective density on each grid
818	IF ( psolver(1:9) == 'multigrid' ) THEN
819
820	ALLOCATE( ddx2_mg(maximum_grid_level) )
821	ALLOCATE( ddy2_mg(maximum_grid_level) )
822	ALLOCATE( dzu_mg(nzb+1:nzt+1,maximum_grid_level) )
823	ALLOCATE( dzw_mg(nzb+1:nzt+1,maximum_grid_level) )
824	ALLOCATE( f1_mg(nzb+1:nzt,maximum_grid_level) )
825	ALLOCATE( f2_mg(nzb+1:nzt,maximum_grid_level) )
826	ALLOCATE( f3_mg(nzb+1:nzt,maximum_grid_level) )
827	ALLOCATE( rho_air_mg(nzb:nzt+1,maximum_grid_level) )
828	ALLOCATE( rho_air_zw_mg(nzb:nzt+1,maximum_grid_level) )
829
830	dzu_mg(:,maximum_grid_level) = dzu
831	rho_air_mg(:,maximum_grid_level) = rho_air
832	!
833	!-- Next line to ensure an equally spaced grid.
834	dzu_mg(1,maximum_grid_level) = dzu(2)
835	rho_air_mg(nzb,maximum_grid_level) = rho_air(nzb) + &
836	(rho_air(nzb) - rho_air(nzb+1))
837
838	dzw_mg(:,maximum_grid_level) = dzw
839	rho_air_zw_mg(:,maximum_grid_level) = rho_air_zw
840	nzt_l = nzt
841	DO l = maximum_grid_level-1, 1, -1
842	dzu_mg(nzb+1,l) = 2.0_wp * dzu_mg(nzb+1,l+1)
843	dzw_mg(nzb+1,l) = 2.0_wp * dzw_mg(nzb+1,l+1)
844	rho_air_mg(nzb,l) = rho_air_mg(nzb,l+1) + (rho_air_mg(nzb,l+1) - rho_air_mg(nzb+1,l+1))
845	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))
846	rho_air_mg(nzb+1,l) = rho_air_mg(nzb+1,l+1)
847	rho_air_zw_mg(nzb+1,l) = rho_air_zw_mg(nzb+1,l+1)
848	nzt_l = nzt_l / 2
849	DO k = 2, nzt_l+1
850	dzu_mg(k,l) = dzu_mg(2k-2,l+1) + dzu_mg(2k-1,l+1)
851	dzw_mg(k,l) = dzw_mg(2k-2,l+1) + dzw_mg(2k-1,l+1)
852	rho_air_mg(k,l) = rho_air_mg(2*k-1,l+1)
853	rho_air_zw_mg(k,l) = rho_air_zw_mg(2*k-1,l+1)
854	ENDDO
855	ENDDO
856
857	nzt_l = nzt
858	dx_l = dx
859	dy_l = dy
860	DO l = maximum_grid_level, 1, -1
861	ddx2_mg(l) = 1.0_wp / dx_l**2
862	ddy2_mg(l) = 1.0_wp / dy_l**2
863	DO k = nzb+1, nzt_l
864	f2_mg(k,l) = rho_air_zw_mg(k,l) / ( dzu_mg(k+1,l) * dzw_mg(k,l) )
865	f3_mg(k,l) = rho_air_zw_mg(k-1,l) / ( dzu_mg(k,l) * dzw_mg(k,l) )
866	f1_mg(k,l) = 2.0_wp * ( ddx2_mg(l) + ddy2_mg(l) ) &
867	* rho_air_mg(k,l) + f2_mg(k,l) + f3_mg(k,l)
868	ENDDO
869	nzt_l = nzt_l / 2
870	dx_l = dx_l * 2.0_wp
871	dy_l = dy_l * 2.0_wp
872	ENDDO
873
874	ENDIF
875
876	!
877	!-- 3D-array for storing the dissipation, needed for calculating the sgs
878	!-- particle velocities
879	IF ( use_sgs_for_particles .OR. wang_kernel .OR. collision_turbulence )&
880	THEN
881	ALLOCATE( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
882	ENDIF
883
884	!
885	!-- 1D-array for large scale subsidence velocity
886	IF ( .NOT. ALLOCATED( w_subs ) ) THEN
887	ALLOCATE ( w_subs(nzb:nzt+1) )
888	w_subs = 0.0_wp
889	ENDIF
890
891	!
892	!-- Arrays to store velocity data from t-dt and the phase speeds which
893	!-- are needed for radiation boundary conditions
894	IF ( outflow_l ) THEN
895	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
896	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
897	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
898	ENDIF
899	IF ( outflow_r ) THEN
900	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
901	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
902	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
903	ENDIF
904	IF ( outflow_l .OR. outflow_r ) THEN
905	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
906	c_w(nzb:nzt+1,nysg:nyng) )
907	ENDIF
908	IF ( outflow_s ) THEN
909	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
910	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
911	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
912	ENDIF
913	IF ( outflow_n ) THEN
914	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
915	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
916	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
917	ENDIF
918	IF ( outflow_s .OR. outflow_n ) THEN
919	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
920	c_w(nzb:nzt+1,nxlg:nxrg) )
921	ENDIF
922	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
923	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
924	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
925	ENDIF
926
927
928	#if ! defined( __nopointer )
929	!
930	!-- Initial assignment of the pointers
931	e => e_1; e_p => e_2; te_m => e_3
932	IF ( .NOT. neutral ) THEN
933	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
934	ELSE
935	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
936	ENDIF
937	u => u_1; u_p => u_2; tu_m => u_3
938	v => v_1; v_p => v_2; tv_m => v_3
939	w => w_1; w_p => w_2; tw_m => w_3
940
941	IF ( humidity ) THEN
942	q => q_1; q_p => q_2; tq_m => q_3
943	IF ( humidity ) THEN
944	vpt => vpt_1
945	IF ( cloud_physics ) THEN
946	ql => ql_1
947	IF ( .NOT. microphysics_morrison ) THEN
948	qc => qc_1
949	ENDIF
950	IF ( microphysics_morrison ) THEN
951	qc => qc_1; qc_p => qc_2; tqc_m => qc_3
952	nc => nc_1; nc_p => nc_2; tnc_m => nc_3
953	ENDIF
954	IF ( microphysics_seifert ) THEN
955	qr => qr_1; qr_p => qr_2; tqr_m => qr_3
956	nr => nr_1; nr_p => nr_2; tnr_m => nr_3
957	ENDIF
958	ENDIF
959	ENDIF
960	IF ( cloud_droplets ) THEN
961	ql => ql_1
962	ql_c => ql_2
963	ENDIF
964	ENDIF
965
966	IF ( passive_scalar ) THEN
967	s => s_1; s_p => s_2; ts_m => s_3
968	ENDIF
969
970	IF ( ocean ) THEN
971	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
972	ENDIF
973	#endif
974	!
975	!-- Initialize wall arrays
976	CALL init_surface_arrays
977	!
978	!-- Allocate land surface model arrays
979	IF ( land_surface ) THEN
980	CALL lsm_init_arrays
981	ENDIF
982
983	!
984	!-- Allocate wind turbine model arrays
985	IF ( wind_turbine ) THEN
986	CALL wtm_init_arrays
987	ENDIF
988
989	!
990	!-- Initialize virtual flight measurements
991	IF ( virtual_flight ) THEN
992	CALL flight_init
993	ENDIF
994
995	!
996	!-- Initialize nudging if required
997	IF ( nudging ) THEN
998	CALL nudge_init
999	ENDIF
1000
1001	!
1002	!-- Initialize reading of large scale forcing from external file - if required
1003	IF ( large_scale_forcing ) THEN
1004	CALL lsf_init
1005	ENDIF
1006
1007	!
1008	!-- Allocate arrays containing the RK coefficient for calculation of
1009	!-- perturbation pressure and turbulent fluxes. At this point values are
1010	!-- set for pressure calculation during initialization (where no timestep
1011	!-- is done). Further below the values needed within the timestep scheme
1012	!-- will be set.
1013	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
1014	weight_pres(1:intermediate_timestep_count_max) )
1015	weight_substep = 1.0_wp
1016	weight_pres = 1.0_wp
1017	intermediate_timestep_count = 0 ! needed when simulated_time = 0.0
1018
1019	CALL location_message( 'finished', .TRUE. )
1020
1021	!
1022	!-- Initialize local summation arrays for routine flow_statistics.
1023	!-- This is necessary because they may not yet have been initialized when they
1024	!-- are called from flow_statistics (or - depending on the chosen model run -
1025	!-- are never initialized)
1026	sums_divnew_l = 0.0_wp
1027	sums_divold_l = 0.0_wp
1028	sums_l_l = 0.0_wp
1029	sums_wsts_bc_l = 0.0_wp
1030
1031	!
1032	!-- Initialize model variables
1033	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1034	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1035	!
1036	!-- First model run of a possible job queue.
1037	!-- Initial profiles of the variables must be computes.
1038	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
1039
1040	CALL location_message( 'initializing with 1D model profiles', .FALSE. )
1041	!
1042	!-- Use solutions of the 1D model as initial profiles,
1043	!-- start 1D model
1044	CALL init_1d_model
1045	!
1046	!-- Transfer initial profiles to the arrays of the 3D model
1047	DO i = nxlg, nxrg
1048	DO j = nysg, nyng
1049	e(:,j,i) = e1d
1050	kh(:,j,i) = kh1d
1051	km(:,j,i) = km1d
1052	pt(:,j,i) = pt_init
1053	u(:,j,i) = u1d
1054	v(:,j,i) = v1d
1055	ENDDO
1056	ENDDO
1057
1058	IF ( humidity ) THEN
1059	DO i = nxlg, nxrg
1060	DO j = nysg, nyng
1061	q(:,j,i) = q_init
1062	ENDDO
1063	ENDDO
1064	IF ( cloud_physics .AND. microphysics_morrison ) THEN
1065	DO i = nxlg, nxrg
1066	DO j = nysg, nyng
1067	qc(:,j,i) = 0.0_wp
1068	nc(:,j,i) = 0.0_wp
1069	ENDDO
1070	ENDDO
1071	ENDIF
1072	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1073	DO i = nxlg, nxrg
1074	DO j = nysg, nyng
1075	qr(:,j,i) = 0.0_wp
1076	nr(:,j,i) = 0.0_wp
1077	ENDDO
1078	ENDDO
1079	ENDIF
1080	ENDIF
1081
1082	IF ( passive_scalar ) THEN
1083	DO i = nxlg, nxrg
1084	DO j = nysg, nyng
1085	s(:,j,i) = s_init
1086	ENDDO
1087	ENDDO
1088	ENDIF
1089
1090	IF ( .NOT. constant_diffusion ) THEN
1091	DO i = nxlg, nxrg
1092	DO j = nysg, nyng
1093	e(:,j,i) = e1d
1094	ENDDO
1095	ENDDO
1096	!
1097	!-- Store initial profiles for output purposes etc.
1098	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
1099
1100	ELSE
1101	e = 0.0_wp ! must be set, because used in
1102	ENDIF
1103	!
1104	!-- Inside buildings set velocities back to zero
1105	IF ( topography /= 'flat' ) THEN
1106	DO i = nxlg, nxrg
1107	DO j = nysg, nyng
1108	DO k = nzb, nzt
1109	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, &
1110	BTEST( wall_flags_0(k,j,i), 1 ) )
1111	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, &
1112	BTEST( wall_flags_0(k,j,i), 2 ) )
1113	ENDDO
1114	ENDDO
1115	ENDDO
1116
1117	!
1118	!-- WARNING: The extra boundary conditions set after running the
1119	!-- ------- 1D model impose an error on the divergence one layer
1120	!-- below the topography; need to correct later
1121	!-- ATTENTION: Provisional correction for Piacsek & Williams
1122	!-- --------- advection scheme: keep u and v zero one layer below
1123	!-- the topography.
1124	IF ( ibc_uv_b == 1 ) THEN
1125	!
1126	!-- Neumann condition
1127	DO i = nxl-1, nxr+1
1128	DO j = nys-1, nyn+1
1129	u(nzb,j,i) = u(nzb+1,j,i)
1130	v(nzb,j,i) = v(nzb+1,j,i)
1131	ENDDO
1132	ENDDO
1133
1134	ENDIF
1135
1136	ENDIF
1137
1138	CALL location_message( 'finished', .TRUE. )
1139
1140	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
1141	THEN
1142
1143	CALL location_message( 'initializing with constant profiles', .FALSE. )
1144	!
1145	!-- Overwrite initial profiles in case of synthetic turbulence generator
1146	IF( use_synthetic_turbulence_generator ) THEN
1147	CALL stg_init
1148	ENDIF
1149
1150	!
1151	!-- Use constructed initial profiles (velocity constant with height,
1152	!-- temperature profile with constant gradient)
1153	DO i = nxlg, nxrg
1154	DO j = nysg, nyng
1155	pt(:,j,i) = pt_init
1156	u(:,j,i) = u_init
1157	v(:,j,i) = v_init
1158	ENDDO
1159	ENDDO
1160
1161	!
1162	!-- Set initial horizontal velocities at the lowest computational grid
1163	!-- levels to zero in order to avoid too small time steps caused by the
1164	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
1165	!-- in the limiting formula!).
1166	IF ( ibc_uv_b /= 1 ) THEN
1167	DO i = nxlg, nxrg
1168	DO j = nysg, nyng
1169	DO k = nzb, nzt
1170	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, &
1171	BTEST( wall_flags_0(k,j,i), 20 ) )
1172	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, &
1173	BTEST( wall_flags_0(k,j,i), 21 ) )
1174	ENDDO
1175	ENDDO
1176	ENDDO
1177	ENDIF
1178
1179	IF ( humidity ) THEN
1180	DO i = nxlg, nxrg
1181	DO j = nysg, nyng
1182	q(:,j,i) = q_init
1183	ENDDO
1184	ENDDO
1185	IF ( cloud_physics .AND. microphysics_morrison ) THEN
1186	DO i = nxlg, nxrg
1187	DO j = nysg, nyng
1188	qc(:,j,i) = 0.0_wp
1189	nc(:,j,i) = 0.0_wp
1190	ENDDO
1191	ENDDO
1192	ENDIF
1193
1194	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1195	DO i = nxlg, nxrg
1196	DO j = nysg, nyng
1197	qr(:,j,i) = 0.0_wp
1198	nr(:,j,i) = 0.0_wp
1199	ENDDO
1200	ENDDO
1201	ENDIF
1202
1203	ENDIF
1204
1205	IF ( passive_scalar ) THEN
1206	DO i = nxlg, nxrg
1207	DO j = nysg, nyng
1208	s(:,j,i) = s_init
1209	ENDDO
1210	ENDDO
1211	ENDIF
1212
1213	IF ( ocean ) THEN
1214	DO i = nxlg, nxrg
1215	DO j = nysg, nyng
1216	sa(:,j,i) = sa_init
1217	ENDDO
1218	ENDDO
1219	ENDIF
1220
1221	IF ( constant_diffusion ) THEN
1222	km = km_constant
1223	kh = km / prandtl_number
1224	e = 0.0_wp
1225	ELSEIF ( e_init > 0.0_wp ) THEN
1226	DO k = nzb+1, nzt
1227	km(k,:,:) = 0.1_wp * l_grid(k) * SQRT( e_init )
1228	ENDDO
1229	km(nzb,:,:) = km(nzb+1,:,:)
1230	km(nzt+1,:,:) = km(nzt,:,:)
1231	kh = km / prandtl_number
1232	e = e_init
1233	ELSE
1234	IF ( .NOT. ocean ) THEN
1235	kh = 0.01_wp ! there must exist an initial diffusion, because
1236	km = 0.01_wp ! otherwise no TKE would be produced by the
1237	! production terms, as long as not yet
1238	! e = (u/cm)*2 at k=nzb+1
1239	ELSE
1240	kh = 0.00001_wp
1241	km = 0.00001_wp
1242	ENDIF
1243	e = 0.0_wp
1244	ENDIF
1245	!
1246	!-- Compute initial temperature field and other constants used in case
1247	!-- of a sloping surface
1248	IF ( sloping_surface ) CALL init_slope
1249
1250	CALL location_message( 'finished', .TRUE. )
1251
1252	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
1253	THEN
1254
1255	CALL location_message( 'initializing by user', .FALSE. )
1256	!
1257	!-- Initialization will completely be done by the user
1258	CALL user_init_3d_model
1259
1260	CALL location_message( 'finished', .TRUE. )
1261
1262	ENDIF
1263
1264	CALL location_message( 'initializing statistics, boundary conditions, etc.', &
1265	.FALSE. )
1266
1267	!
1268	!-- Bottom boundary
1269	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
1270	u(nzb,:,:) = 0.0_wp
1271	v(nzb,:,:) = 0.0_wp
1272	ENDIF
1273
1274	!
1275	!-- Apply channel flow boundary condition
1276	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
1277	u(nzt+1,:,:) = 0.0_wp
1278	v(nzt+1,:,:) = 0.0_wp
1279	ENDIF
1280
1281	!
1282	!-- Calculate virtual potential temperature
1283	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
1284
1285	!
1286	!-- Store initial profiles for output purposes etc.
1287	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
1288	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
1289	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
1290	hom(nzb,1,5,:) = 0.0_wp
1291	hom(nzb,1,6,:) = 0.0_wp
1292	ENDIF
1293	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
1294	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
1295	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
1296
1297	IF ( ocean ) THEN
1298	!
1299	!-- Store initial salinity profile
1300	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
1301	ENDIF
1302
1303	IF ( humidity ) THEN
1304	!
1305	!-- Store initial profile of total water content, virtual potential
1306	!-- temperature
1307	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
1308	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
1309	IF ( cloud_physics .OR. cloud_droplets ) THEN
1310	!
1311	!-- Store initial profile of specific humidity and potential
1312	!-- temperature
1313	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
1314	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
1315	ENDIF
1316	ENDIF
1317
1318	IF ( passive_scalar ) THEN
1319	!
1320	!-- Store initial scalar profile
1321	hom(:,1,121,:) = SPREAD( s(:,nys,nxl), 2, statistic_regions+1 )
1322	ENDIF
1323
1324	!
1325	!-- Initialize the random number generators (from numerical recipes)
1326	CALL random_function_ini
1327
1328	IF ( random_generator == 'random-parallel' ) THEN
1329	CALL init_parallel_random_generator(nx, ny, nys, nyn, nxl, nxr)
1330	ENDIF
1331	!
1332	!-- Set the reference state to be used in the buoyancy terms (for ocean runs
1333	!-- the reference state will be set (overwritten) in init_ocean)
1334	IF ( use_single_reference_value ) THEN
1335	IF ( .NOT. humidity ) THEN
1336	ref_state(:) = pt_reference
1337	ELSE
1338	ref_state(:) = vpt_reference
1339	ENDIF
1340	ELSE
1341	IF ( .NOT. humidity ) THEN
1342	ref_state(:) = pt_init(:)
1343	ELSE
1344	ref_state(:) = vpt(:,nys,nxl)
1345	ENDIF
1346	ENDIF
1347
1348	!
1349	!-- For the moment, vertical velocity is zero
1350	w = 0.0_wp
1351
1352	!
1353	!-- Initialize array sums (must be defined in first call of pres)
1354	sums = 0.0_wp
1355
1356	!
1357	!-- In case of iterative solvers, p must get an initial value
1358	IF ( psolver(1:9) == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
1359
1360	!
1361	!-- Treating cloud physics, liquid water content and precipitation amount
1362	!-- are zero at beginning of the simulation
1363	IF ( cloud_physics ) THEN
1364	ql = 0.0_wp
1365	qc = 0.0_wp
1366
1367	precipitation_amount = 0.0_wp
1368	ENDIF
1369	!
1370	!-- Impose vortex with vertical axis on the initial velocity profile
1371	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
1372	CALL init_rankine
1373	ENDIF
1374
1375	!
1376	!-- Impose temperature anomaly (advection test only)
1377	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
1378	CALL init_pt_anomaly
1379	ENDIF
1380
1381	!
1382	!-- If required, change the surface temperature at the start of the 3D run
1383	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
1384	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
1385	ENDIF
1386
1387	!
1388	!-- If required, change the surface humidity/scalar at the start of the 3D
1389	!-- run
1390	IF ( humidity .AND. q_surface_initial_change /= 0.0_wp ) &
1391	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
1392
1393	IF ( passive_scalar .AND. s_surface_initial_change /= 0.0_wp ) &
1394	s(nzb,:,:) = s(nzb,:,:) + s_surface_initial_change
1395
1396
1397	!
1398	!-- Initialize old and new time levels.
1399	te_m = 0.0_wp; tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
1400	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1401
1402	IF ( humidity ) THEN
1403	tq_m = 0.0_wp
1404	q_p = q
1405	IF ( cloud_physics .AND. microphysics_morrison ) THEN
1406	tqc_m = 0.0_wp
1407	qc_p = qc
1408	tnc_m = 0.0_wp
1409	nc_p = nc
1410	ENDIF
1411	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1412	tqr_m = 0.0_wp
1413	qr_p = qr
1414	tnr_m = 0.0_wp
1415	nr_p = nr
1416	ENDIF
1417	ENDIF
1418
1419	IF ( passive_scalar ) THEN
1420	ts_m = 0.0_wp
1421	s_p = s
1422	ENDIF
1423
1424	IF ( ocean ) THEN
1425	tsa_m = 0.0_wp
1426	sa_p = sa
1427	ENDIF
1428
1429	CALL location_message( 'finished', .TRUE. )
1430
1431	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
1432	TRIM( initializing_actions ) == 'cyclic_fill' ) &
1433	THEN
1434
1435	CALL location_message( 'initializing in case of restart / cyclic_fill', &
1436	.FALSE. )
1437	!
1438	!-- Initialize surface elements and its attributes, e.g. heat- and
1439	!-- momentumfluxes, roughness, scaling parameters. As number of surface
1440	!-- elements might be different between runs, e.g. in case of cyclic fill,
1441	!-- and not all surface elements are read, surface elements need to be
1442	!-- initialized before.
1443	CALL init_surfaces
1444	!
1445	!-- When reading data for cyclic fill of 3D prerun data files, read
1446	!-- some of the global variables from the restart file which are required
1447	!-- for initializing the inflow
1448	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1449
1450	DO i = 0, io_blocks-1
1451	IF ( i == io_group ) THEN
1452	CALL read_parts_of_var_list
1453	CALL close_file( 13 )
1454	ENDIF
1455	#if defined( __parallel )
1456	CALL MPI_BARRIER( comm2d, ierr )
1457	#endif
1458	ENDDO
1459
1460	ENDIF
1461
1462	!
1463	!-- Read binary data from restart file
1464	DO i = 0, io_blocks-1
1465	IF ( i == io_group ) THEN
1466	CALL read_3d_binary
1467	ENDIF
1468	#if defined( __parallel )
1469	CALL MPI_BARRIER( comm2d, ierr )
1470	#endif
1471	ENDDO
1472
1473	!
1474	!-- In case of complex terrain and cyclic fill method as initialization,
1475	!-- shift initial data in the vertical direction for each point in the
1476	!-- x-y-plane depending on local surface height
1477	IF ( complex_terrain .AND. &
1478	TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1479	DO i = nxlg, nxrg
1480	DO j = nysg, nyng
1481	nz_u_shift = get_topography_top_index( j, i, 'u' )
1482	nz_v_shift = get_topography_top_index( j, i, 'v' )
1483	nz_w_shift = get_topography_top_index( j, i, 'w' )
1484	nz_s_shift = get_topography_top_index( j, i, 's' )
1485
1486	u(nz_u_shift:nzt+1,j,i) = u(0:nzt+1-nz_u_shift,j,i)
1487
1488	v(nz_v_shift:nzt+1,j,i) = v(0:nzt+1-nz_v_shift,j,i)
1489
1490	w(nz_w_shift:nzt+1,j,i) = w(0:nzt+1-nz_w_shift,j,i)
1491
1492	e(nz_s_shift:nzt+1,j,i) = e(0:nzt+1-nz_s_shift,j,i)
1493	p(nz_s_shift:nzt+1,j,i) = p(0:nzt+1-nz_s_shift,j,i)
1494	pt(nz_s_shift:nzt+1,j,i) = pt(0:nzt+1-nz_s_shift,j,i)
1495	km(nz_s_shift:nzt+1,j,i) = km(0:nzt+1-nz_s_shift,j,i)
1496	kh(nz_s_shift:nzt+1,j,i) = kh(0:nzt+1-nz_s_shift,j,i)
1497	ENDDO
1498	ENDDO
1499	ENDIF
1500
1501	!
1502	!-- Initialization of the turbulence recycling method
1503	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1504	turbulent_inflow ) THEN
1505	!
1506	!-- First store the profiles to be used at the inflow.
1507	!-- These profiles are the (temporally) and horizontally averaged vertical
1508	!-- profiles from the prerun. Alternatively, prescribed profiles
1509	!-- for u,v-components can be used.
1510	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,7) )
1511
1512	IF ( use_prescribed_profile_data ) THEN
1513	mean_inflow_profiles(:,1) = u_init ! u
1514	mean_inflow_profiles(:,2) = v_init ! v
1515	ELSE
1516	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
1517	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
1518	ENDIF
1519	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
1520	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
1521	IF ( humidity ) &
1522	mean_inflow_profiles(:,6) = hom_sum(:,41,0) ! q
1523	IF ( passive_scalar ) &
1524	mean_inflow_profiles(:,7) = hom_sum(:,115,0) ! s
1525	!
1526	!-- In case of complex terrain, determine vertical displacement at inflow
1527	!-- boundary and adjust mean inflow profiles
1528	IF ( complex_terrain ) THEN
1529	IF ( nxlg <= 0 .AND. nxrg >= 0 .AND. nysg <= 0 .AND. nyng >= 0 ) THEN
1530	nz_u_shift_l = get_topography_top_index( 0, 0, 'u' )
1531	nz_v_shift_l = get_topography_top_index( 0, 0, 'v' )
1532	nz_w_shift_l = get_topography_top_index( 0, 0, 'w' )
1533	nz_s_shift_l = get_topography_top_index( 0, 0, 's' )
1534	ELSE
1535	nz_u_shift_l = 0
1536	nz_v_shift_l = 0
1537	nz_w_shift_l = 0
1538	nz_s_shift_l = 0
1539	ENDIF
1540
1541	#if defined( __parallel )
1542	CALL MPI_ALLREDUCE(nz_u_shift_l, nz_u_shift, 1, MPI_INTEGER, &
1543	MPI_MAX, comm2d, ierr)
1544	CALL MPI_ALLREDUCE(nz_v_shift_l, nz_v_shift, 1, MPI_INTEGER, &
1545	MPI_MAX, comm2d, ierr)
1546	CALL MPI_ALLREDUCE(nz_w_shift_l, nz_w_shift, 1, MPI_INTEGER, &
1547	MPI_MAX, comm2d, ierr)
1548	CALL MPI_ALLREDUCE(nz_s_shift_l, nz_s_shift, 1, MPI_INTEGER, &
1549	MPI_MAX, comm2d, ierr)
1550	#else
1551	nz_u_shift = nz_u_shift_l
1552	nz_v_shift = nz_v_shift_l
1553	nz_w_shift = nz_w_shift_l
1554	nz_s_shift = nz_s_shift_l
1555	#endif
1556
1557	mean_inflow_profiles(:,1) = 0.0_wp
1558	mean_inflow_profiles(nz_u_shift:nzt+1,1) = hom_sum(0:nzt+1-nz_u_shift,1,0) ! u
1559
1560	mean_inflow_profiles(:,2) = 0.0_wp
1561	mean_inflow_profiles(nz_v_shift:nzt+1,2) = hom_sum(0:nzt+1-nz_v_shift,2,0) ! v
1562
1563	mean_inflow_profiles(nz_s_shift:nzt+1,4) = hom_sum(0:nzt+1-nz_s_shift,4,0) ! pt
1564	mean_inflow_profiles(nz_s_shift:nzt+1,5) = hom_sum(0:nzt+1-nz_s_shift,8,0) ! e
1565
1566	ENDIF
1567
1568	!
1569	!-- If necessary, adjust the horizontal flow field to the prescribed
1570	!-- profiles
1571	IF ( use_prescribed_profile_data ) THEN
1572	DO i = nxlg, nxrg
1573	DO j = nysg, nyng
1574	DO k = nzb, nzt+1
1575	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
1576	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
1577	ENDDO
1578	ENDDO
1579	ENDDO
1580	ENDIF
1581
1582	!
1583	!-- Use these mean profiles at the inflow (provided that Dirichlet
1584	!-- conditions are used)
1585	IF ( inflow_l ) THEN
1586	DO j = nysg, nyng
1587	DO k = nzb, nzt+1
1588	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
1589	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
1590	w(k,j,nxlg:-1) = 0.0_wp
1591	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
1592	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
1593	IF ( humidity ) &
1594	q(k,j,nxlg:-1) = mean_inflow_profiles(k,6)
1595	IF ( passive_scalar ) &
1596	s(k,j,nxlg:-1) = mean_inflow_profiles(k,7)
1597	ENDDO
1598	ENDDO
1599	ENDIF
1600
1601	!
1602	!-- Calculate the damping factors to be used at the inflow. For a
1603	!-- turbulent inflow the turbulent fluctuations have to be limited
1604	!-- vertically because otherwise the turbulent inflow layer will grow
1605	!-- in time.
1606	IF ( inflow_damping_height == 9999999.9_wp ) THEN
1607	!
1608	!-- Default: use the inversion height calculated by the prerun; if
1609	!-- this is zero, inflow_damping_height must be explicitly
1610	!-- specified.
1611	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
1612	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
1613	ELSE
1614	WRITE( message_string, * ) 'inflow_damping_height must be ', &
1615	'explicitly specified because&the inversion height ', &
1616	'calculated by the prerun is zero.'
1617	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
1618	ENDIF
1619
1620	ENDIF
1621
1622	IF ( inflow_damping_width == 9999999.9_wp ) THEN
1623	!
1624	!-- Default for the transition range: one tenth of the undamped
1625	!-- layer
1626	inflow_damping_width = 0.1_wp * inflow_damping_height
1627
1628	ENDIF
1629
1630	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
1631
1632	DO k = nzb, nzt+1
1633
1634	IF ( zu(k) <= inflow_damping_height ) THEN
1635	inflow_damping_factor(k) = 1.0_wp
1636	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
1637	inflow_damping_factor(k) = 1.0_wp - &
1638	( zu(k) - inflow_damping_height ) / &
1639	inflow_damping_width
1640	ELSE
1641	inflow_damping_factor(k) = 0.0_wp
1642	ENDIF
1643
1644	ENDDO
1645
1646	ENDIF
1647
1648	!
1649	!-- Inside buildings set velocities and TKE back to zero
1650	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1651	topography /= 'flat' ) THEN
1652	!
1653	!-- Inside buildings set velocities and TKE back to zero.
1654	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
1655	!-- maybe revise later.
1656	DO i = nxlg, nxrg
1657	DO j = nysg, nyng
1658	DO k = nzb, nzt
1659	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, &
1660	BTEST( wall_flags_0(k,j,i), 1 ) )
1661	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, &
1662	BTEST( wall_flags_0(k,j,i), 2 ) )
1663	w(k,j,i) = MERGE( w(k,j,i), 0.0_wp, &
1664	BTEST( wall_flags_0(k,j,i), 3 ) )
1665	e(k,j,i) = MERGE( e(k,j,i), 0.0_wp, &
1666	BTEST( wall_flags_0(k,j,i), 0 ) )
1667	tu_m(k,j,i) = MERGE( tu_m(k,j,i), 0.0_wp, &
1668	BTEST( wall_flags_0(k,j,i), 1 ) )
1669	tv_m(k,j,i) = MERGE( tv_m(k,j,i), 0.0_wp, &
1670	BTEST( wall_flags_0(k,j,i), 2 ) )
1671	tw_m(k,j,i) = MERGE( tw_m(k,j,i), 0.0_wp, &
1672	BTEST( wall_flags_0(k,j,i), 3 ) )
1673	te_m(k,j,i) = MERGE( te_m(k,j,i), 0.0_wp, &
1674	BTEST( wall_flags_0(k,j,i), 0 ) )
1675	tpt_m(k,j,i) = MERGE( tpt_m(k,j,i), 0.0_wp, &
1676	BTEST( wall_flags_0(k,j,i), 0 ) )
1677	ENDDO
1678	ENDDO
1679	ENDDO
1680
1681	ENDIF
1682
1683	!
1684	!-- Calculate initial temperature field and other constants used in case
1685	!-- of a sloping surface
1686	IF ( sloping_surface ) CALL init_slope
1687
1688	!
1689	!-- Initialize new time levels (only done in order to set boundary values
1690	!-- including ghost points)
1691	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1692	IF ( humidity ) THEN
1693	q_p = q
1694	IF ( cloud_physics .AND. microphysics_morrison ) THEN
1695	qc_p = qc
1696	nc_p = nc
1697	ENDIF
1698	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1699	qr_p = qr
1700	nr_p = nr
1701	ENDIF
1702	ENDIF
1703	IF ( passive_scalar ) s_p = s
1704	IF ( ocean ) sa_p = sa
1705
1706	!
1707	!-- Allthough tendency arrays are set in prognostic_equations, they have
1708	!-- have to be predefined here because they are used (but multiplied with 0)
1709	!-- there before they are set.
1710	te_m = 0.0_wp; tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
1711	IF ( humidity ) THEN
1712	tq_m = 0.0_wp
1713	IF ( cloud_physics .AND. microphysics_morrison ) THEN
1714	tqc_m = 0.0_wp
1715	tnc_m = 0.0_wp
1716	ENDIF
1717	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1718	tqr_m = 0.0_wp
1719	tnr_m = 0.0_wp
1720	ENDIF
1721	ENDIF
1722	IF ( passive_scalar ) ts_m = 0.0_wp
1723	IF ( ocean ) tsa_m = 0.0_wp
1724	!
1725	!-- Initialize synthetic turbulence generator in case of restart.
1726	IF ( TRIM( initializing_actions ) == 'read_restart_data' .AND. &
1727	use_synthetic_turbulence_generator ) CALL stg_init
1728
1729	CALL location_message( 'finished', .TRUE. )
1730
1731	ELSE
1732	!
1733	!-- Actually this part of the programm should not be reached
1734	message_string = 'unknown initializing problem'
1735	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
1736	ENDIF
1737
1738
1739	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1740	!
1741	!-- Initialize old timelevels needed for radiation boundary conditions
1742	IF ( outflow_l ) THEN
1743	u_m_l(:,:,:) = u(:,:,1:2)
1744	v_m_l(:,:,:) = v(:,:,0:1)
1745	w_m_l(:,:,:) = w(:,:,0:1)
1746	ENDIF
1747	IF ( outflow_r ) THEN
1748	u_m_r(:,:,:) = u(:,:,nx-1:nx)
1749	v_m_r(:,:,:) = v(:,:,nx-1:nx)
1750	w_m_r(:,:,:) = w(:,:,nx-1:nx)
1751	ENDIF
1752	IF ( outflow_s ) THEN
1753	u_m_s(:,:,:) = u(:,0:1,:)
1754	v_m_s(:,:,:) = v(:,1:2,:)
1755	w_m_s(:,:,:) = w(:,0:1,:)
1756	ENDIF
1757	IF ( outflow_n ) THEN
1758	u_m_n(:,:,:) = u(:,ny-1:ny,:)
1759	v_m_n(:,:,:) = v(:,ny-1:ny,:)
1760	w_m_n(:,:,:) = w(:,ny-1:ny,:)
1761	ENDIF
1762
1763	ENDIF
1764
1765	!
1766	!-- Calculate the initial volume flow at the right and north boundary
1767	IF ( conserve_volume_flow ) THEN
1768
1769	IF ( use_prescribed_profile_data ) THEN
1770
1771	volume_flow_initial_l = 0.0_wp
1772	volume_flow_area_l = 0.0_wp
1773
1774	IF ( nxr == nx ) THEN
1775	DO j = nys, nyn
1776	DO k = nzb+1, nzt
1777	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1778	u_init(k) * dzw(k) &
1779	* MERGE( 1.0_wp, 0.0_wp, &
1780	BTEST( wall_flags_0(k,j,nxr), 1 )&
1781	)
1782
1783	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
1784	* MERGE( 1.0_wp, 0.0_wp, &
1785	BTEST( wall_flags_0(k,j,nxr), 1 )&
1786	)
1787	ENDDO
1788	ENDDO
1789	ENDIF
1790
1791	IF ( nyn == ny ) THEN
1792	DO i = nxl, nxr
1793	DO k = nzb+1, nzt
1794	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1795	v_init(k) * dzw(k) &
1796	* MERGE( 1.0_wp, 0.0_wp, &
1797	BTEST( wall_flags_0(k,nyn,i), 2 )&
1798	)
1799	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
1800	* MERGE( 1.0_wp, 0.0_wp, &
1801	BTEST( wall_flags_0(k,nyn,i), 2 )&
1802	)
1803	ENDDO
1804	ENDDO
1805	ENDIF
1806
1807	#if defined( __parallel )
1808	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1809	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1810	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1811	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1812
1813	#else
1814	volume_flow_initial = volume_flow_initial_l
1815	volume_flow_area = volume_flow_area_l
1816	#endif
1817
1818	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1819
1820	volume_flow_initial_l = 0.0_wp
1821	volume_flow_area_l = 0.0_wp
1822
1823	IF ( nxr == nx ) THEN
1824	DO j = nys, nyn
1825	DO k = nzb+1, nzt
1826	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1827	hom_sum(k,1,0) * dzw(k) &
1828	* MERGE( 1.0_wp, 0.0_wp, &
1829	BTEST( wall_flags_0(k,j,nx), 1 ) &
1830	)
1831	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
1832	* MERGE( 1.0_wp, 0.0_wp, &
1833	BTEST( wall_flags_0(k,j,nx), 1 ) &
1834	)
1835	ENDDO
1836	ENDDO
1837	ENDIF
1838
1839	IF ( nyn == ny ) THEN
1840	DO i = nxl, nxr
1841	DO k = nzb+1, nzt
1842	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1843	hom_sum(k,2,0) * dzw(k) &
1844	* MERGE( 1.0_wp, 0.0_wp, &
1845	BTEST( wall_flags_0(k,ny,i), 2 ) &
1846	)
1847	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
1848	* MERGE( 1.0_wp, 0.0_wp, &
1849	BTEST( wall_flags_0(k,ny,i), 2 ) &
1850	)
1851	ENDDO
1852	ENDDO
1853	ENDIF
1854
1855	#if defined( __parallel )
1856	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1857	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1858	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1859	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1860
1861	#else
1862	volume_flow_initial = volume_flow_initial_l
1863	volume_flow_area = volume_flow_area_l
1864	#endif
1865
1866	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1867
1868	volume_flow_initial_l = 0.0_wp
1869	volume_flow_area_l = 0.0_wp
1870
1871	IF ( nxr == nx ) THEN
1872	DO j = nys, nyn
1873	DO k = nzb+1, nzt
1874	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1875	u(k,j,nx) * dzw(k) &
1876	* MERGE( 1.0_wp, 0.0_wp, &
1877	BTEST( wall_flags_0(k,j,nx), 1 ) &
1878	)
1879	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
1880	* MERGE( 1.0_wp, 0.0_wp, &
1881	BTEST( wall_flags_0(k,j,nx), 1 ) &
1882	)
1883	ENDDO
1884	ENDDO
1885	ENDIF
1886
1887	IF ( nyn == ny ) THEN
1888	DO i = nxl, nxr
1889	DO k = nzb+1, nzt
1890	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1891	v(k,ny,i) * dzw(k) &
1892	* MERGE( 1.0_wp, 0.0_wp, &
1893	BTEST( wall_flags_0(k,ny,i), 2 ) &
1894	)
1895	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
1896	* MERGE( 1.0_wp, 0.0_wp, &
1897	BTEST( wall_flags_0(k,ny,i), 2 ) &
1898	)
1899	ENDDO
1900	ENDDO
1901	ENDIF
1902
1903	#if defined( __parallel )
1904	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1905	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1906	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1907	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1908
1909	#else
1910	volume_flow_initial = volume_flow_initial_l
1911	volume_flow_area = volume_flow_area_l
1912	#endif
1913
1914	ENDIF
1915
1916	!
1917	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
1918	!-- from u\|v_bulk instead
1919	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
1920	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
1921	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
1922	ENDIF
1923
1924	ENDIF
1925	!
1926	!-- Initialize surface elements and its attributes, e.g. heat- and
1927	!-- momentumfluxes, roughness, scaling parameters.
1928	!-- This is already done in case of restart data.
1929	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1930	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1931	CALL init_surfaces
1932	!
1933	!-- Finally, if random_heatflux is set, disturb shf at horizontal
1934	!-- surfaces. Actually, this should be done in surface_mod, where all other
1935	!-- initializations of surface quantities are done. However, this
1936	!-- would create a ring dependency, hence, it is done here. Maybe delete
1937	!-- disturb_heatflux and tranfer the respective code directly into the
1938	!-- initialization in surface_mod.
1939	IF ( use_surface_fluxes .AND. constant_heatflux .AND. &
1940	random_heatflux ) THEN
1941	IF ( surf_def_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_def_h(0) )
1942	IF ( surf_lsm_h%ns >= 1 ) CALL disturb_heatflux( surf_lsm_h )
1943	IF ( surf_usm_h%ns >= 1 ) CALL disturb_heatflux( surf_usm_h )
1944	ENDIF
1945	ENDIF
1946
1947	!
1948	!-- Initialize surface forcing corresponding to large-scale forcing. Therein,
1949	!-- initialize heat-fluxes, etc. via datatype. Revise it later!
1950	IF ( large_scale_forcing .AND. lsf_surf ) THEN
1951	IF ( use_surface_fluxes .AND. constant_heatflux ) THEN
1952	CALL ls_forcing_surf ( simulated_time )
1953	ENDIF
1954	ENDIF
1955	!
1956	!-- Initialize quantities for special advections schemes
1957	CALL init_advec
1958
1959	!
1960	!-- Impose random perturbation on the horizontal velocity field and then
1961	!-- remove the divergences from the velocity field at the initial stage
1962	IF ( create_disturbances .AND. disturbance_energy_limit /= 0.0_wp .AND. &
1963	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1964	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1965
1966	CALL location_message( 'creating initial disturbances', .FALSE. )
1967	CALL disturb_field( 'u', tend, u )
1968	CALL disturb_field( 'v', tend, v )
1969	CALL location_message( 'finished', .TRUE. )
1970
1971	CALL location_message( 'calling pressure solver', .FALSE. )
1972	n_sor = nsor_ini
1973	CALL pres
1974	n_sor = nsor
1975	CALL location_message( 'finished', .TRUE. )
1976
1977	ENDIF
1978
1979	!
1980	!-- If required, initialize quantities needed for the plant canopy model
1981	IF ( plant_canopy ) THEN
1982	CALL location_message( 'initializing plant canopy model', .FALSE. )
1983	CALL pcm_init
1984	CALL location_message( 'finished', .TRUE. )
1985	ENDIF
1986
1987	!
1988	!-- If required, initialize dvrp-software
1989	IF ( dt_dvrp /= 9999999.9_wp ) CALL init_dvrp
1990
1991	IF ( ocean ) THEN
1992	!
1993	!-- Initialize quantities needed for the ocean model
1994	CALL init_ocean
1995
1996	ELSE
1997	!
1998	!-- Initialize quantities for handling cloud physics
1999	!-- This routine must be called before lpm_init, because
2000	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
2001	!-- lpm_init) is not defined.
2002	CALL init_cloud_physics
2003	!
2004	!-- Initialize bulk cloud microphysics
2005	CALL microphysics_init
2006	ENDIF
2007
2008	!
2009	!-- If required, initialize particles
2010	IF ( particle_advection ) CALL lpm_init
2011
2012	!
2013	!-- If required, initialize quantities needed for the LSM
2014	IF ( land_surface ) THEN
2015	CALL location_message( 'initializing land surface model', .FALSE. )
2016	CALL lsm_init
2017	CALL location_message( 'finished', .TRUE. )
2018	ENDIF
2019
2020	!
2021	!-- Initialize surface layer (done after LSM as roughness length are required
2022	!-- for initialization
2023	IF ( constant_flux_layer ) THEN
2024	CALL location_message( 'initializing surface layer', .FALSE. )
2025	CALL init_surface_layer_fluxes
2026	CALL location_message( 'finished', .TRUE. )
2027	ENDIF
2028
2029	!
2030	!-- If required, initialize radiation model
2031	IF ( radiation ) THEN
2032	CALL location_message( 'initializing radiation model', .FALSE. )
2033	CALL radiation_init
2034	CALL location_message( 'finished', .TRUE. )
2035	ENDIF
2036
2037
2038	!
2039	!-- Temporary solution to add LSM and radiation time series to the default
2040	!-- output
2041	IF ( land_surface .OR. radiation ) THEN
2042	IF ( TRIM( radiation_scheme ) == 'rrtmg' ) THEN
2043	dots_num = dots_num + 15
2044	ELSE
2045	dots_num = dots_num + 11
2046	ENDIF
2047	ENDIF
2048
2049	!
2050	!-- If required, initialize urban surface model
2051	IF ( urban_surface ) THEN
2052	CALL location_message( 'initializing urban surface model', .FALSE. )
2053	CALL usm_init_urban_surface
2054	CALL location_message( 'finished', .TRUE. )
2055	ENDIF
2056
2057	!
2058	!-- If required, initialize quantities needed for the wind turbine model
2059	IF ( wind_turbine ) THEN
2060	CALL location_message( 'initializing wind turbine model', .FALSE. )
2061	CALL wtm_init
2062	CALL location_message( 'finished', .TRUE. )
2063	ENDIF
2064
2065
2066	!
2067	!-- Initialize the ws-scheme.
2068	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
2069
2070	!
2071	!-- Setting weighting factors for calculation of perturbation pressure
2072	!-- and turbulent quantities from the RK substeps
2073	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
2074
2075	weight_substep(1) = 1._wp/6._wp
2076	weight_substep(2) = 3._wp/10._wp
2077	weight_substep(3) = 8._wp/15._wp
2078
2079	weight_pres(1) = 1._wp/3._wp
2080	weight_pres(2) = 5._wp/12._wp
2081	weight_pres(3) = 1._wp/4._wp
2082
2083	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
2084
2085	weight_substep(1) = 1._wp/2._wp
2086	weight_substep(2) = 1._wp/2._wp
2087
2088	weight_pres(1) = 1._wp/2._wp
2089	weight_pres(2) = 1._wp/2._wp
2090
2091	ELSE ! for Euler-method
2092
2093	weight_substep(1) = 1.0_wp
2094	weight_pres(1) = 1.0_wp
2095
2096	ENDIF
2097
2098	!
2099	!-- Initialize Rayleigh damping factors
2100	rdf = 0.0_wp
2101	rdf_sc = 0.0_wp
2102	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
2103	IF ( .NOT. ocean ) THEN
2104	DO k = nzb+1, nzt
2105	IF ( zu(k) >= rayleigh_damping_height ) THEN
2106	rdf(k) = rayleigh_damping_factor * &
2107	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
2108	/ ( zu(nzt) - rayleigh_damping_height ) ) &
2109	)**2
2110	ENDIF
2111	ENDDO
2112	ELSE
2113	DO k = nzt, nzb+1, -1
2114	IF ( zu(k) <= rayleigh_damping_height ) THEN
2115	rdf(k) = rayleigh_damping_factor * &
2116	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
2117	/ ( rayleigh_damping_height - zu(nzb+1) ) ) &
2118	)**2
2119	ENDIF
2120	ENDDO
2121	ENDIF
2122	ENDIF
2123	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
2124
2125	!
2126	!-- Initialize the starting level and the vertical smoothing factor used for
2127	!-- the external pressure gradient
2128	dp_smooth_factor = 1.0_wp
2129	IF ( dp_external ) THEN
2130	!
2131	!-- Set the starting level dp_level_ind_b only if it has not been set before
2132	!-- (e.g. in init_grid).
2133	IF ( dp_level_ind_b == 0 ) THEN
2134	ind_array = MINLOC( ABS( dp_level_b - zu ) )
2135	dp_level_ind_b = ind_array(1) - 1 + nzb
2136	! MINLOC uses lower array bound 1
2137	ENDIF
2138	IF ( dp_smooth ) THEN
2139	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
2140	DO k = dp_level_ind_b+1, nzt
2141	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
2142	( REAL( k - dp_level_ind_b, KIND=wp ) / &
2143	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
2144	ENDDO
2145	ENDIF
2146	ENDIF
2147
2148	!
2149	!-- Initialize damping zone for the potential temperature in case of
2150	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
2151	!-- at the inflow boundary and decreases to zero at pt_damping_width.
2152	ptdf_x = 0.0_wp
2153	ptdf_y = 0.0_wp
2154	IF ( bc_lr_dirrad ) THEN
2155	DO i = nxl, nxr
2156	IF ( ( i * dx ) < pt_damping_width ) THEN
2157	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
2158	REAL( pt_damping_width - i * dx, KIND=wp ) / ( &
2159	REAL( pt_damping_width, KIND=wp ) ) ) )**2
2160	ENDIF
2161	ENDDO
2162	ELSEIF ( bc_lr_raddir ) THEN
2163	DO i = nxl, nxr
2164	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
2165	ptdf_x(i) = pt_damping_factor * &
2166	SIN( pi * 0.5_wp * &
2167	( ( i - nx ) * dx + pt_damping_width ) / &
2168	REAL( pt_damping_width, KIND=wp ) )**2
2169	ENDIF
2170	ENDDO
2171	ELSEIF ( bc_ns_dirrad ) THEN
2172	DO j = nys, nyn
2173	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
2174	ptdf_y(j) = pt_damping_factor * &
2175	SIN( pi * 0.5_wp * &
2176	( ( j - ny ) * dy + pt_damping_width ) / &
2177	REAL( pt_damping_width, KIND=wp ) )**2
2178	ENDIF
2179	ENDDO
2180	ELSEIF ( bc_ns_raddir ) THEN
2181	DO j = nys, nyn
2182	IF ( ( j * dy ) < pt_damping_width ) THEN
2183	ptdf_y(j) = pt_damping_factor * &
2184	SIN( pi * 0.5_wp * &
2185	( pt_damping_width - j * dy ) / &
2186	REAL( pt_damping_width, KIND=wp ) )**2
2187	ENDIF
2188	ENDDO
2189	ENDIF
2190
2191	!
2192	!-- Pre-set masks for regional statistics. Default is the total model domain.
2193	!-- Ghost points are excluded because counting values at the ghost boundaries
2194	!-- would bias the statistics
2195	rmask = 1.0_wp
2196	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
2197	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
2198
2199	!
2200	!-- User-defined initializing actions. Check afterwards, if maximum number
2201	!-- of allowed timeseries is exceeded
2202	CALL user_init
2203
2204	IF ( dots_num > dots_max ) THEN
2205	WRITE( message_string, * ) 'number of time series quantities exceeds', &
2206	' its maximum of dots_max = ', dots_max, &
2207	' &Please increase dots_max in modules.f90.'
2208	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
2209	ENDIF
2210
2211	!
2212	!-- Input binary data file is not needed anymore. This line must be placed
2213	!-- after call of user_init!
2214	CALL close_file( 13 )
2215
2216	!
2217	!-- Compute total sum of active mask grid points
2218	!-- and the mean surface level height for each statistic region
2219	!-- ngp_2dh: number of grid points of a horizontal cross section through the
2220	!-- total domain
2221	!-- ngp_3d: number of grid points of the total domain
2222	ngp_2dh_outer_l = 0
2223	ngp_2dh_outer = 0
2224	ngp_2dh_s_inner_l = 0
2225	ngp_2dh_s_inner = 0
2226	ngp_2dh_l = 0
2227	ngp_2dh = 0
2228	ngp_3d_inner_l = 0.0_wp
2229	ngp_3d_inner = 0
2230	ngp_3d = 0
2231	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
2232
2233	mean_surface_level_height = 0.0_wp
2234	mean_surface_level_height_l = 0.0_wp
2235
2236	!
2237	!-- To do: New concept for these non-topography grid points!
2238	DO sr = 0, statistic_regions
2239	DO i = nxl, nxr
2240	DO j = nys, nyn
2241	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
2242	!
2243	!-- All xy-grid points
2244	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
2245	!
2246	!-- Determine mean surface-level height. In case of downward-
2247	!-- facing walls are present, more than one surface level exist.
2248	!-- In this case, use the lowest surface-level height.
2249	IF ( surf_def_h(0)%start_index(j,i) <= &
2250	surf_def_h(0)%end_index(j,i) ) THEN
2251	m = surf_def_h(0)%start_index(j,i)
2252	k = surf_def_h(0)%k(m)
2253	mean_surface_level_height_l(sr) = &
2254	mean_surface_level_height_l(sr) + zw(k-1)
2255	ENDIF
2256	IF ( surf_lsm_h%start_index(j,i) <= &
2257	surf_lsm_h%end_index(j,i) ) THEN
2258	m = surf_lsm_h%start_index(j,i)
2259	k = surf_lsm_h%k(m)
2260	mean_surface_level_height_l(sr) = &
2261	mean_surface_level_height_l(sr) + zw(k-1)
2262	ENDIF
2263	IF ( surf_usm_h%start_index(j,i) <= &
2264	surf_usm_h%end_index(j,i) ) THEN
2265	m = surf_usm_h%start_index(j,i)
2266	k = surf_usm_h%k(m)
2267	mean_surface_level_height_l(sr) = &
2268	mean_surface_level_height_l(sr) + zw(k-1)
2269	ENDIF
2270
2271	k_surf = k - 1
2272
2273	DO k = nzb, nzt+1
2274	!
2275	!-- xy-grid points above topography
2276	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + &
2277	MERGE( 1, 0, BTEST( wall_flags_0(k,j,i), 24 ) )
2278
2279	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + &
2280	MERGE( 1, 0, BTEST( wall_flags_0(k,j,i), 22 ) )
2281
2282	ENDDO
2283	!
2284	!-- All grid points of the total domain above topography
2285	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + ( nz - k_surf + 2 )
2286
2287
2288
2289	ENDIF
2290	ENDDO
2291	ENDDO
2292	ENDDO
2293
2294	sr = statistic_regions + 1
2295	#if defined( __parallel )
2296	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2297	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
2298	comm2d, ierr )
2299	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2300	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
2301	MPI_INTEGER, MPI_SUM, comm2d, ierr )
2302	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2303	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
2304	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
2305	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2306	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
2307	MPI_SUM, comm2d, ierr )
2308	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
2309	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2310	CALL MPI_ALLREDUCE( mean_surface_level_height_l(0), &
2311	mean_surface_level_height(0), sr, MPI_REAL, &
2312	MPI_SUM, comm2d, ierr )
2313	mean_surface_level_height = mean_surface_level_height / REAL( ngp_2dh )
2314	#else
2315	ngp_2dh = ngp_2dh_l
2316	ngp_2dh_outer = ngp_2dh_outer_l
2317	ngp_2dh_s_inner = ngp_2dh_s_inner_l
2318	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
2319	mean_surface_level_height = mean_surface_level_height_l / REAL( ngp_2dh_l )
2320	#endif
2321
2322	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
2323	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
2324
2325	!
2326	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
2327	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
2328	!-- the respective subdomain lie below the surface topography
2329	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
2330	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
2331	ngp_3d_inner(:) )
2332	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
2333
2334	DEALLOCATE( mean_surface_level_height_l, ngp_2dh_l, ngp_2dh_outer_l, &
2335	ngp_3d_inner_l, ngp_3d_inner_tmp )
2336
2337	CALL location_message( 'leaving init_3d_model', .TRUE. )
2338
2339	END SUBROUTINE init_3d_model

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