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source: palm/trunk/SOURCE/init_3d_model.f90 @ 2320

Last change on this file since 2320 was 2320, checked in by suehring, 7 years ago

large-scale forcing and nudging modularized

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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 2320 2017-07-21 12:47:43Z suehring $
27	! Modularize large-scale forcing and nudging
28	!
29	! 2292 2017-06-20 09:51:42Z schwenkel
30	! Implementation of new microphysic scheme: cloud_scheme = 'morrison'
31	! includes two more prognostic equations for cloud drop concentration (nc)
32	! and cloud water content (qc).
33	!
34	! 2277 2017-06-12 10:47:51Z kanani
35	! Removed unused variable sums_up_fraction_l
36	!
37	! 2270 2017-06-09 12:18:47Z maronga
38	! dots_num must be increased when LSM and/or radiation is used
39	!
40	! 2259 2017-06-08 09:09:11Z gronemeier
41	! Implemented synthetic turbulence generator
42	!
43	! 2252 2017-06-07 09:35:37Z knoop
44	! rho_air now depending on surface_pressure even in Boussinesq mode
45	!
46	! 2233 2017-05-30 18:08:54Z suehring
47	!
48	! 2232 2017-05-30 17:47:52Z suehring
49	! Adjustments to new topography and surface concept:
50	! - Modify passed parameters for disturb_field
51	! - Topography representation via flags
52	! - Remove unused arrays.
53	! - Move initialization of surface-related quantities to surface_mod
54	!
55	! 2172 2017-03-08 15:55:25Z knoop
56	! Bugfix: moved parallel random generator initialization into its module
57	!
58	! 2118 2017-01-17 16:38:49Z raasch
59	! OpenACC directives removed
60	!
61	! 2037 2016-10-26 11:15:40Z knoop
62	! Anelastic approximation implemented
63	!
64	! 2031 2016-10-21 15:11:58Z knoop
65	! renamed variable rho to rho_ocean
66	!
67	! 2011 2016-09-19 17:29:57Z kanani
68	! Flag urban_surface is now defined in module control_parameters.
69	!
70	! 2007 2016-08-24 15:47:17Z kanani
71	! Added support for urban surface model,
72	! adjusted location_message in case of plant_canopy
73	!
74	! 2000 2016-08-20 18:09:15Z knoop
75	! Forced header and separation lines into 80 columns
76	!
77	! 1992 2016-08-12 15:14:59Z suehring
78	! Initializaton of scalarflux at model top
79	! Bugfixes in initialization of surface and top salinity flux, top scalar and
80	! humidity fluxes
81	!
82	! 1960 2016-07-12 16:34:24Z suehring
83	! Separate humidity and passive scalar
84	! Increase dimension for mean_inflow_profiles
85	! Remove inadvertent write-statement
86	! Bugfix, large-scale forcing is still not implemented for passive scalars
87	!
88	! 1957 2016-07-07 10:43:48Z suehring
89	! flight module added
90	!
91	! 1920 2016-05-30 10:50:15Z suehring
92	! Initialize us with very small number to avoid segmentation fault during
93	! calculation of Obukhov length
94	!
95	! 1918 2016-05-27 14:35:57Z raasch
96	! intermediate_timestep_count is set 0 instead 1 for first call of pres,
97	! bugfix: initialization of local sum arrays are moved to the beginning of the
98	! routine because otherwise results from pres are overwritten
99	!
100	! 1914 2016-05-26 14:44:07Z witha
101	! Added initialization of the wind turbine model
102	!
103	! 1878 2016-04-19 12:30:36Z hellstea
104	! The zeroth element of weight_pres removed as unnecessary
105	!
106	! 1849 2016-04-08 11:33:18Z hoffmann
107	! Adapted for modularization of microphysics.
108	! precipitation_amount, precipitation_rate, prr moved to arrays_3d.
109	! Initialization of nc_1d, nr_1d, pt_1d, qc_1d, qr_1d, q_1d moved to
110	! microphysics_init.
111	!
112	! 1845 2016-04-08 08:29:13Z raasch
113	! nzb_2d replaced by nzb_u\|v_inner
114	!
115	! 1833 2016-04-07 14:23:03Z raasch
116	! initialization of spectra quantities moved to spectra_mod
117	!
118	! 1831 2016-04-07 13:15:51Z hoffmann
119	! turbulence renamed collision_turbulence
120	!
121	! 1826 2016-04-07 12:01:39Z maronga
122	! Renamed radiation calls.
123	! Renamed canopy model calls.
124	!
125	! 1822 2016-04-07 07:49:42Z hoffmann
126	! icloud_scheme replaced by microphysics_*
127	!
128	! 1817 2016-04-06 15:44:20Z maronga
129	! Renamed lsm calls.
130	!
131	! 1815 2016-04-06 13:49:59Z raasch
132	! zero-settings for velocities inside topography re-activated (was deactivated
133	! in r1762)
134	!
135	! 1788 2016-03-10 11:01:04Z maronga
136	! Added z0q.
137	! Syntax layout improved.
138	!
139	! 1783 2016-03-06 18:36:17Z raasch
140	! netcdf module name changed + related changes
141	!
142	! 1764 2016-02-28 12:45:19Z raasch
143	! bugfix: increase size of volume_flow_area_l and volume_flow_initial_l by 1
144	!
145	! 1762 2016-02-25 12:31:13Z hellstea
146	! Introduction of nested domain feature
147	!
148	! 1738 2015-12-18 13:56:05Z raasch
149	! calculate mean surface level height for each statistic region
150	!
151	! 1734 2015-12-02 12:17:12Z raasch
152	! no initial disturbances in case that the disturbance energy limit has been
153	! set zero
154	!
155	! 1707 2015-11-02 15:24:52Z maronga
156	! Bugfix: transfer of Richardson number from 1D model to Obukhov length caused
157	! devision by zero in neutral stratification
158	!
159	! 1691 2015-10-26 16:17:44Z maronga
160	! Call to init_surface_layer added. rif is replaced by ol and zeta.
161	!
162	! 1682 2015-10-07 23:56:08Z knoop
163	! Code annotations made doxygen readable
164	!
165	! 1615 2015-07-08 18:49:19Z suehring
166	! Enable turbulent inflow for passive_scalar and humidity
167	!
168	! 1585 2015-04-30 07:05:52Z maronga
169	! Initialization of radiation code is now done after LSM initializtion
170	!
171	! 1575 2015-03-27 09:56:27Z raasch
172	! adjustments for psolver-queries
173	!
174	! 1551 2015-03-03 14:18:16Z maronga
175	! Allocation of land surface arrays is now done in the subroutine lsm_init_arrays,
176	! which is part of land_surface_model.
177	!
178	! 1507 2014-12-10 12:14:18Z suehring
179	! Bugfix: set horizontal velocity components to zero inside topography
180	!
181	! 1496 2014-12-02 17:25:50Z maronga
182	! Added initialization of the land surface and radiation schemes
183	!
184	! 1484 2014-10-21 10:53:05Z kanani
185	! Changes due to new module structure of the plant canopy model:
186	! canopy-related initialization (e.g. lad and canopy_heat_flux) moved to new
187	! subroutine init_plant_canopy within the module plant_canopy_model_mod,
188	! call of subroutine init_plant_canopy added.
189	!
190	! 1431 2014-07-15 14:47:17Z suehring
191	! var_d added, in order to normalize spectra.
192	!
193	! 1429 2014-07-15 12:53:45Z knoop
194	! Ensemble run capability added to parallel random number generator
195	!
196	! 1411 2014-05-16 18:01:51Z suehring
197	! Initial horizontal velocity profiles were not set to zero at the first vertical
198	! grid level in case of non-cyclic lateral boundary conditions.
199	!
200	! 1406 2014-05-16 13:47:01Z raasch
201	! bugfix: setting of initial velocities at k=1 to zero not in case of a
202	! no-slip boundary condition for uv
203	!
204	! 1402 2014-05-09 14:25:13Z raasch
205	! location messages modified
206	!
207	! 1400 2014-05-09 14:03:54Z knoop
208	! Parallel random number generator added
209	!
210	! 1384 2014-05-02 14:31:06Z raasch
211	! location messages added
212	!
213	! 1361 2014-04-16 15:17:48Z hoffmann
214	! tend_* removed
215	! Bugfix: w_subs is not allocated anymore if it is already allocated
216	!
217	! 1359 2014-04-11 17:15:14Z hoffmann
218	! module lpm_init_mod added to use statements, because lpm_init has become a
219	! module
220	!
221	! 1353 2014-04-08 15:21:23Z heinze
222	! REAL constants provided with KIND-attribute
223	!
224	! 1340 2014-03-25 19:45:13Z kanani
225	! REAL constants defined as wp-kind
226	!
227	! 1322 2014-03-20 16:38:49Z raasch
228	! REAL constants defined as wp-kind
229	! module interfaces removed
230	!
231	! 1320 2014-03-20 08:40:49Z raasch
232	! ONLY-attribute added to USE-statements,
233	! kind-parameters added to all INTEGER and REAL declaration statements,
234	! kinds are defined in new module kinds,
235	! revision history before 2012 removed,
236	! comment fields (!:) to be used for variable explanations added to
237	! all variable declaration statements
238	!
239	! 1316 2014-03-17 07:44:59Z heinze
240	! Bugfix: allocation of w_subs
241	!
242	! 1299 2014-03-06 13:15:21Z heinze
243	! Allocate w_subs due to extension of large scale subsidence in combination
244	! with large scale forcing data (LSF_DATA)
245	!
246	! 1241 2013-10-30 11:36:58Z heinze
247	! Overwrite initial profiles in case of nudging
248	! Inititialize shf and qsws in case of large_scale_forcing
249	!
250	! 1221 2013-09-10 08:59:13Z raasch
251	! +rflags_s_inner in copyin statement, use copyin for most arrays instead of
252	! copy
253	!
254	! 1212 2013-08-15 08:46:27Z raasch
255	! array tri is allocated and included in data copy statement
256	!
257	! 1195 2013-07-01 12:27:57Z heinze
258	! Bugfix: move allocation of ref_state to parin.f90 and read_var_list.f90
259	!
260	! 1179 2013-06-14 05:57:58Z raasch
261	! allocate and set ref_state to be used in buoyancy terms
262	!
263	! 1171 2013-05-30 11:27:45Z raasch
264	! diss array is allocated with full size if accelerator boards are used
265	!
266	! 1159 2013-05-21 11:58:22Z fricke
267	! -bc_lr_dirneu, bc_lr_neudir, bc_ns_dirneu, bc_ns_neudir
268	!
269	! 1153 2013-05-10 14:33:08Z raasch
270	! diss array is allocated with dummy elements even if it is not needed
271	! (required by PGI 13.4 / CUDA 5.0)
272	!
273	! 1115 2013-03-26 18:16:16Z hoffmann
274	! unused variables removed
275	!
276	! 1113 2013-03-10 02:48:14Z raasch
277	! openACC directive modified
278	!
279	! 1111 2013-03-08 23:54:10Z raasch
280	! openACC directives added for pres
281	! array diss allocated only if required
282	!
283	! 1092 2013-02-02 11:24:22Z raasch
284	! unused variables removed
285	!
286	! 1065 2012-11-22 17:42:36Z hoffmann
287	! allocation of diss (dissipation rate) in case of turbulence = .TRUE. added
288	!
289	! 1053 2012-11-13 17:11:03Z hoffmann
290	! allocation and initialisation of necessary data arrays for the two-moment
291	! cloud physics scheme the two new prognostic equations (nr, qr):
292	! +dr, lambda_r, mu_r, sed_, xr, s, sws, swst, , _p, t_m, _1, _2, _3,
293	! +tend_*, prr
294	!
295	! 1036 2012-10-22 13:43:42Z raasch
296	! code put under GPL (PALM 3.9)
297	!
298	! 1032 2012-10-21 13:03:21Z letzel
299	! save memory by not allocating pt_2 in case of neutral = .T.
300	!
301	! 1025 2012-10-07 16:04:41Z letzel
302	! bugfix: swap indices of mask for ghost boundaries
303	!
304	! 1015 2012-09-27 09:23:24Z raasch
305	! mask is set to zero for ghost boundaries
306	!
307	! 1010 2012-09-20 07:59:54Z raasch
308	! cpp switch __nopointer added for pointer free version
309	!
310	! 1003 2012-09-14 14:35:53Z raasch
311	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
312	!
313	! 1001 2012-09-13 14:08:46Z raasch
314	! all actions concerning leapfrog scheme removed
315	!
316	! 996 2012-09-07 10:41:47Z raasch
317	! little reformatting
318	!
319	! 978 2012-08-09 08:28:32Z fricke
320	! outflow damping layer removed
321	! roughness length for scalar quantites z0h added
322	! damping zone for the potential temperatur in case of non-cyclic lateral
323	! boundaries added
324	! initialization of ptdf_x, ptdf_y
325	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
326	!
327	! 849 2012-03-15 10:35:09Z raasch
328	! init_particles renamed lpm_init
329	!
330	! 825 2012-02-19 03:03:44Z raasch
331	! wang_collision_kernel renamed wang_kernel
332	!
333	! Revision 1.1 1998/03/09 16:22:22 raasch
334	! Initial revision
335	!
336	!
337	! Description:
338	! ------------
339	!> Allocation of arrays and initialization of the 3D model via
340	!> a) pre-run the 1D model
341	!> or
342	!> b) pre-set constant linear profiles
343	!> or
344	!> c) read values of a previous run
345	!------------------------------------------------------------------------------!
346	SUBROUTINE init_3d_model
347
348
349	USE advec_ws
350
351	USE arrays_3d
352
353	USE cloud_parameters, &
354	ONLY: cp, l_v, r_d
355
356	USE constants, &
357	ONLY: pi
358
359	USE control_parameters
360
361	USE flight_mod, &
362	ONLY: flight_init
363
364	USE grid_variables, &
365	ONLY: dx, dy, ddx2_mg, ddy2_mg
366
367	USE indices
368
369	USE lpm_init_mod, &
370	ONLY: lpm_init
371
372	USE kinds
373
374	USE land_surface_model_mod, &
375	ONLY: lsm_init, lsm_init_arrays
376
377	USE lsf_nudging_mod, &
378	ONLY: lsf_init, ls_forcing_surf, nudge_init
379
380	USE microphysics_mod, &
381	ONLY: collision_turbulence, microphysics_init
382
383	USE model_1d, &
384	ONLY: e1d, kh1d, km1d, l1d, rif1d, u1d, us1d, usws1d, v1d, vsws1d
385
386	USE netcdf_interface, &
387	ONLY: dots_max, dots_num
388
389	USE particle_attributes, &
390	ONLY: particle_advection, use_sgs_for_particles, wang_kernel
391
392	USE pegrid
393
394	USE plant_canopy_model_mod, &
395	ONLY: pcm_init, plant_canopy
396
397	USE radiation_model_mod, &
398	ONLY: radiation_init, radiation, radiation_scheme
399
400	USE random_function_mod
401
402	USE random_generator_parallel, &
403	ONLY: init_parallel_random_generator
404
405	USE statistics, &
406	ONLY: hom, hom_sum, mean_surface_level_height, pr_palm, rmask, &
407	statistic_regions, sums, sums_divnew_l, sums_divold_l, sums_l, &
408	sums_l_l, sums_wsts_bc_l, ts_value, &
409	weight_pres, weight_substep
410
411	USE synthetic_turbulence_generator_mod, &
412	ONLY: stg_init, use_synthetic_turbulence_generator
413
414	USE surface_layer_fluxes_mod, &
415	ONLY: init_surface_layer_fluxes
416
417	USE surface_mod, &
418	ONLY : init_surface_arrays, init_surfaces, surf_def_h, surf_lsm_h, &
419	surf_usm_h
420
421	USE transpose_indices
422
423	USE urban_surface_mod, &
424	ONLY: usm_init_urban_surface
425
426	USE wind_turbine_model_mod, &
427	ONLY: wtm_init, wtm_init_arrays, wind_turbine
428
429	IMPLICIT NONE
430
431	INTEGER(iwp) :: i !<
432	INTEGER(iwp) :: ind_array(1) !<
433	INTEGER(iwp) :: j !<
434	INTEGER(iwp) :: k !<
435	INTEGER(iwp) :: k_surf !< surface level index
436	INTEGER(iwp) :: m !< index of surface element in surface data type
437	INTEGER(iwp) :: sr !< index of statistic region
438
439	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !<
440
441	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !<
442	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !<
443
444	REAL(wp) :: t_surface !< air temperature at the surface
445
446	REAL(wp), DIMENSION(:), ALLOCATABLE :: p_hydrostatic !< hydrostatic pressure
447
448	INTEGER(iwp) :: l !< loop variable
449	INTEGER(iwp) :: nzt_l !< index of top PE boundary for multigrid level
450	REAL(wp) :: dx_l !< grid spacing along x on different multigrid level
451	REAL(wp) :: dy_l !< grid spacing along y on different multigrid level
452
453	REAL(wp), DIMENSION(1:3) :: volume_flow_area_l !<
454	REAL(wp), DIMENSION(1:3) :: volume_flow_initial_l !<
455
456	REAL(wp), DIMENSION(:), ALLOCATABLE :: mean_surface_level_height_l !<
457	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !<
458	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !<
459
460
461	CALL location_message( 'allocating arrays', .FALSE. )
462	!
463	!-- Allocate arrays
464	ALLOCATE( mean_surface_level_height(0:statistic_regions), &
465	mean_surface_level_height_l(0:statistic_regions), &
466	ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
467	ngp_3d(0:statistic_regions), &
468	ngp_3d_inner(0:statistic_regions), &
469	ngp_3d_inner_l(0:statistic_regions), &
470	ngp_3d_inner_tmp(0:statistic_regions), &
471	sums_divnew_l(0:statistic_regions), &
472	sums_divold_l(0:statistic_regions) )
473	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
474	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
475	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
476	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
477	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
478	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
479	sums(nzb:nzt+1,pr_palm+max_pr_user), &
480	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
481	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
482	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
483	ts_value(dots_max,0:statistic_regions) )
484	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
485
486	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
487	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
488	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
489	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
490	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
491
492	#if defined( __nopointer )
493	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
494	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
495	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
496	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
497	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
498	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
499	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
500	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
501	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
502	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
503	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
504	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
505	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
506	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
507	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
508	#else
509	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
510	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
511	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
512	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
513	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
514	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
515	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
516	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
517	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
518	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
519	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
520	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
521	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
522	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
523	IF ( .NOT. neutral ) THEN
524	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
525	ENDIF
526	#endif
527
528	!
529	!-- Following array is required for perturbation pressure within the iterative
530	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
531	!-- the weighted average of the substeps and cannot be used in the Poisson
532	!-- solver.
533	IF ( psolver == 'sor' ) THEN
534	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
535	ELSEIF ( psolver(1:9) == 'multigrid' ) THEN
536	!
537	!-- For performance reasons, multigrid is using one ghost layer only
538	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
539	ENDIF
540
541	!
542	!-- Array for storing constant coeffficients of the tridiagonal solver
543	IF ( psolver == 'poisfft' ) THEN
544	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
545	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
546	ENDIF
547
548	IF ( humidity ) THEN
549	!
550	!-- 3D-humidity
551	#if defined( __nopointer )
552	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
553	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
554	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
555	#else
556	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
557	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
558	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
559	#endif
560
561	!
562	!-- 3D-arrays needed for humidity
563	IF ( humidity ) THEN
564	#if defined( __nopointer )
565	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
566	#else
567	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
568	#endif
569
570	IF ( cloud_physics ) THEN
571	!
572	!-- Liquid water content
573	#if defined( __nopointer )
574	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
575	#else
576	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
577	#endif
578
579	!
580	!-- 3D-cloud water content
581	IF ( .NOT. microphysics_morrison ) THEN
582	#if defined( __nopointer )
583	ALLOCATE( qc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
584	#else
585	ALLOCATE( qc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
586	#endif
587	ENDIF
588	!
589	!-- Precipitation amount and rate (only needed if output is switched)
590	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
591	precipitation_rate(nysg:nyng,nxlg:nxrg) )
592
593	!
594	!-- 3d-precipitation rate
595	ALLOCATE( prr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
596
597	IF ( microphysics_morrison ) THEN
598	!
599	!-- 3D-cloud drop water content, cloud drop concentration arrays
600	#if defined( __nopointer )
601	ALLOCATE( nc(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
602	nc_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
603	qc(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
604	qc_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
605	tnc_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)
606	tqc_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
607	#else
608	ALLOCATE( nc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
609	nc_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
610	nc_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
611	qc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
612	qc_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
613	qc_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
614	#endif
615	ENDIF
616
617	IF ( microphysics_seifert ) THEN
618	!
619	!-- 3D-rain water content, rain drop concentration arrays
620	#if defined( __nopointer )
621	ALLOCATE( nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
622	nr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
623	qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
624	qr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
625	tnr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
626	tqr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
627	#else
628	ALLOCATE( nr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
629	nr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
630	nr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
631	qr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
632	qr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
633	qr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
634	#endif
635	ENDIF
636
637	ENDIF
638
639	IF ( cloud_droplets ) THEN
640	!
641	!-- Liquid water content, change in liquid water content
642	#if defined( __nopointer )
643	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
644	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
645	#else
646	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
647	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
648	#endif
649	!
650	!-- Real volume of particles (with weighting), volume of particles
651	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
652	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
653	ENDIF
654
655	ENDIF
656
657	ENDIF
658
659
660	IF ( passive_scalar ) THEN
661
662	!
663	!-- 3D scalar arrays
664	#if defined( __nopointer )
665	ALLOCATE( s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
666	s_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
667	ts_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
668	#else
669	ALLOCATE( s_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
670	s_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
671	s_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
672	#endif
673	ENDIF
674
675	IF ( ocean ) THEN
676	#if defined( __nopointer )
677	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
678	rho_ocean(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
679	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
680	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
681	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
682	#else
683	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
684	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
685	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
686	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
687	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
688	prho => prho_1
689	rho_ocean => rho_1 ! routines calc_mean_profile and diffusion_e require
690	! density to be apointer
691	#endif
692	ENDIF
693
694	!
695	!-- Allocation of anelastic and Boussinesq approximation specific arrays
696	ALLOCATE( p_hydrostatic(nzb:nzt+1) )
697	ALLOCATE( rho_air(nzb:nzt+1) )
698	ALLOCATE( rho_air_zw(nzb:nzt+1) )
699	ALLOCATE( drho_air(nzb:nzt+1) )
700	ALLOCATE( drho_air_zw(nzb:nzt+1) )
701
702	!
703	!-- Density profile calculation for anelastic approximation
704	t_surface = pt_surface * ( surface_pressure / 1000.0_wp )**( r_d / cp )
705	IF ( TRIM( approximation ) == 'anelastic' ) THEN
706	DO k = nzb, nzt+1
707	p_hydrostatic(k) = surface_pressure * 100.0_wp * &
708	( 1 - ( g * zu(k) ) / ( cp * t_surface ) &
709	)**( cp / r_d )
710	rho_air(k) = ( p_hydrostatic(k) * &
711	( 100000.0_wp / p_hydrostatic(k) &
712	)**( r_d / cp ) &
713	) / ( r_d * pt_init(k) )
714	ENDDO
715	DO k = nzb, nzt
716	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
717	ENDDO
718	rho_air_zw(nzt+1) = rho_air_zw(nzt) &
719	+ 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
720	ELSE
721	DO k = nzb, nzt+1
722	p_hydrostatic(k) = surface_pressure * 100.0_wp * &
723	( 1 - ( g * zu(nzb) ) / ( cp * t_surface ) &
724	)**( cp / r_d )
725	rho_air(k) = ( p_hydrostatic(k) * &
726	( 100000.0_wp / p_hydrostatic(k) &
727	)**( r_d / cp ) &
728	) / ( r_d * pt_init(nzb) )
729	ENDDO
730	DO k = nzb, nzt
731	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
732	ENDDO
733	rho_air_zw(nzt+1) = rho_air_zw(nzt) &
734	+ 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
735	ENDIF
736
737	!-- compute the inverse density array in order to avoid expencive divisions
738	drho_air = 1.0_wp / rho_air
739	drho_air_zw = 1.0_wp / rho_air_zw
740
741	!
742	!-- Allocation of flux conversion arrays
743	ALLOCATE( heatflux_input_conversion(nzb:nzt+1) )
744	ALLOCATE( waterflux_input_conversion(nzb:nzt+1) )
745	ALLOCATE( momentumflux_input_conversion(nzb:nzt+1) )
746	ALLOCATE( heatflux_output_conversion(nzb:nzt+1) )
747	ALLOCATE( waterflux_output_conversion(nzb:nzt+1) )
748	ALLOCATE( momentumflux_output_conversion(nzb:nzt+1) )
749
750	!
751	!-- calculate flux conversion factors according to approximation and in-/output mode
752	DO k = nzb, nzt+1
753
754	IF ( TRIM( flux_input_mode ) == 'kinematic' ) THEN
755	heatflux_input_conversion(k) = rho_air_zw(k)
756	waterflux_input_conversion(k) = rho_air_zw(k)
757	momentumflux_input_conversion(k) = rho_air_zw(k)
758	ELSEIF ( TRIM( flux_input_mode ) == 'dynamic' ) THEN
759	heatflux_input_conversion(k) = 1.0_wp / cp
760	waterflux_input_conversion(k) = 1.0_wp / l_v
761	momentumflux_input_conversion(k) = 1.0_wp
762	ENDIF
763
764	IF ( TRIM( flux_output_mode ) == 'kinematic' ) THEN
765	heatflux_output_conversion(k) = drho_air_zw(k)
766	waterflux_output_conversion(k) = drho_air_zw(k)
767	momentumflux_output_conversion(k) = drho_air_zw(k)
768	ELSEIF ( TRIM( flux_output_mode ) == 'dynamic' ) THEN
769	heatflux_output_conversion(k) = cp
770	waterflux_output_conversion(k) = l_v
771	momentumflux_output_conversion(k) = 1.0_wp
772	ENDIF
773
774	IF ( .NOT. humidity ) THEN
775	waterflux_input_conversion(k) = 1.0_wp
776	waterflux_output_conversion(k) = 1.0_wp
777	ENDIF
778
779	ENDDO
780
781	!
782	!-- In case of multigrid method, compute grid lengths and grid factors for the
783	!-- grid levels with respective density on each grid
784	IF ( psolver(1:9) == 'multigrid' ) THEN
785
786	ALLOCATE( ddx2_mg(maximum_grid_level) )
787	ALLOCATE( ddy2_mg(maximum_grid_level) )
788	ALLOCATE( dzu_mg(nzb+1:nzt+1,maximum_grid_level) )
789	ALLOCATE( dzw_mg(nzb+1:nzt+1,maximum_grid_level) )
790	ALLOCATE( f1_mg(nzb+1:nzt,maximum_grid_level) )
791	ALLOCATE( f2_mg(nzb+1:nzt,maximum_grid_level) )
792	ALLOCATE( f3_mg(nzb+1:nzt,maximum_grid_level) )
793	ALLOCATE( rho_air_mg(nzb:nzt+1,maximum_grid_level) )
794	ALLOCATE( rho_air_zw_mg(nzb:nzt+1,maximum_grid_level) )
795
796	dzu_mg(:,maximum_grid_level) = dzu
797	rho_air_mg(:,maximum_grid_level) = rho_air
798	!
799	!-- Next line to ensure an equally spaced grid.
800	dzu_mg(1,maximum_grid_level) = dzu(2)
801	rho_air_mg(nzb,maximum_grid_level) = rho_air(nzb) + &
802	(rho_air(nzb) - rho_air(nzb+1))
803
804	dzw_mg(:,maximum_grid_level) = dzw
805	rho_air_zw_mg(:,maximum_grid_level) = rho_air_zw
806	nzt_l = nzt
807	DO l = maximum_grid_level-1, 1, -1
808	dzu_mg(nzb+1,l) = 2.0_wp * dzu_mg(nzb+1,l+1)
809	dzw_mg(nzb+1,l) = 2.0_wp * dzw_mg(nzb+1,l+1)
810	rho_air_mg(nzb,l) = rho_air_mg(nzb,l+1) + (rho_air_mg(nzb,l+1) - rho_air_mg(nzb+1,l+1))
811	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))
812	rho_air_mg(nzb+1,l) = rho_air_mg(nzb+1,l+1)
813	rho_air_zw_mg(nzb+1,l) = rho_air_zw_mg(nzb+1,l+1)
814	nzt_l = nzt_l / 2
815	DO k = 2, nzt_l+1
816	dzu_mg(k,l) = dzu_mg(2k-2,l+1) + dzu_mg(2k-1,l+1)
817	dzw_mg(k,l) = dzw_mg(2k-2,l+1) + dzw_mg(2k-1,l+1)
818	rho_air_mg(k,l) = rho_air_mg(2*k-1,l+1)
819	rho_air_zw_mg(k,l) = rho_air_zw_mg(2*k-1,l+1)
820	ENDDO
821	ENDDO
822
823	nzt_l = nzt
824	dx_l = dx
825	dy_l = dy
826	DO l = maximum_grid_level, 1, -1
827	ddx2_mg(l) = 1.0_wp / dx_l**2
828	ddy2_mg(l) = 1.0_wp / dy_l**2
829	DO k = nzb+1, nzt_l
830	f2_mg(k,l) = rho_air_zw_mg(k,l) / ( dzu_mg(k+1,l) * dzw_mg(k,l) )
831	f3_mg(k,l) = rho_air_zw_mg(k-1,l) / ( dzu_mg(k,l) * dzw_mg(k,l) )
832	f1_mg(k,l) = 2.0_wp * ( ddx2_mg(l) + ddy2_mg(l) ) &
833	* rho_air_mg(k,l) + f2_mg(k,l) + f3_mg(k,l)
834	ENDDO
835	nzt_l = nzt_l / 2
836	dx_l = dx_l * 2.0_wp
837	dy_l = dy_l * 2.0_wp
838	ENDDO
839
840	ENDIF
841
842	!
843	!-- 3D-array for storing the dissipation, needed for calculating the sgs
844	!-- particle velocities
845	IF ( use_sgs_for_particles .OR. wang_kernel .OR. collision_turbulence )&
846	THEN
847	ALLOCATE( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
848	ENDIF
849
850	!
851	!-- 1D-array for large scale subsidence velocity
852	IF ( .NOT. ALLOCATED( w_subs ) ) THEN
853	ALLOCATE ( w_subs(nzb:nzt+1) )
854	w_subs = 0.0_wp
855	ENDIF
856
857	!
858	!-- Arrays to store velocity data from t-dt and the phase speeds which
859	!-- are needed for radiation boundary conditions
860	IF ( outflow_l ) THEN
861	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
862	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
863	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
864	ENDIF
865	IF ( outflow_r ) THEN
866	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
867	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
868	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
869	ENDIF
870	IF ( outflow_l .OR. outflow_r ) THEN
871	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
872	c_w(nzb:nzt+1,nysg:nyng) )
873	ENDIF
874	IF ( outflow_s ) THEN
875	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
876	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
877	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
878	ENDIF
879	IF ( outflow_n ) THEN
880	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
881	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
882	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
883	ENDIF
884	IF ( outflow_s .OR. outflow_n ) THEN
885	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
886	c_w(nzb:nzt+1,nxlg:nxrg) )
887	ENDIF
888	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
889	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
890	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
891	ENDIF
892
893
894	#if ! defined( __nopointer )
895	!
896	!-- Initial assignment of the pointers
897	e => e_1; e_p => e_2; te_m => e_3
898	IF ( .NOT. neutral ) THEN
899	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
900	ELSE
901	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
902	ENDIF
903	u => u_1; u_p => u_2; tu_m => u_3
904	v => v_1; v_p => v_2; tv_m => v_3
905	w => w_1; w_p => w_2; tw_m => w_3
906
907	IF ( humidity ) THEN
908	q => q_1; q_p => q_2; tq_m => q_3
909	IF ( humidity ) THEN
910	vpt => vpt_1
911	IF ( cloud_physics ) THEN
912	ql => ql_1
913	IF ( .NOT. microphysics_morrison ) THEN
914	qc => qc_1
915	ENDIF
916	IF ( microphysics_morrison ) THEN
917	qc => qc_1; qc_p => qc_2; tqc_m => qc_3
918	nc => nc_1; nc_p => nc_2; tnc_m => nc_3
919	ENDIF
920	IF ( microphysics_seifert ) THEN
921	qr => qr_1; qr_p => qr_2; tqr_m => qr_3
922	nr => nr_1; nr_p => nr_2; tnr_m => nr_3
923	ENDIF
924	ENDIF
925	ENDIF
926	IF ( cloud_droplets ) THEN
927	ql => ql_1
928	ql_c => ql_2
929	ENDIF
930	ENDIF
931
932	IF ( passive_scalar ) THEN
933	s => s_1; s_p => s_2; ts_m => s_3
934	ENDIF
935
936	IF ( ocean ) THEN
937	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
938	ENDIF
939	#endif
940	!
941	!-- Initialize wall arrays
942	CALL init_surface_arrays
943	!
944	!-- Allocate land surface model arrays
945	IF ( land_surface ) THEN
946	CALL lsm_init_arrays
947	ENDIF
948
949	!
950	!-- Allocate wind turbine model arrays
951	IF ( wind_turbine ) THEN
952	CALL wtm_init_arrays
953	ENDIF
954
955	!
956	!-- Initialize virtual flight measurements
957	IF ( virtual_flight ) THEN
958	CALL flight_init
959	ENDIF
960
961	!
962	!-- Initialize nudging if required
963	IF ( nudging ) THEN
964	CALL nudge_init
965	ENDIF
966
967	!
968	!-- Initialize reading of large scale forcing from external file - if required
969	IF ( large_scale_forcing ) THEN
970	CALL lsf_init
971	ENDIF
972
973	!
974	!-- Allocate arrays containing the RK coefficient for calculation of
975	!-- perturbation pressure and turbulent fluxes. At this point values are
976	!-- set for pressure calculation during initialization (where no timestep
977	!-- is done). Further below the values needed within the timestep scheme
978	!-- will be set.
979	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
980	weight_pres(1:intermediate_timestep_count_max) )
981	weight_substep = 1.0_wp
982	weight_pres = 1.0_wp
983	intermediate_timestep_count = 0 ! needed when simulated_time = 0.0
984
985	CALL location_message( 'finished', .TRUE. )
986
987	!
988	!-- Initialize local summation arrays for routine flow_statistics.
989	!-- This is necessary because they may not yet have been initialized when they
990	!-- are called from flow_statistics (or - depending on the chosen model run -
991	!-- are never initialized)
992	sums_divnew_l = 0.0_wp
993	sums_divold_l = 0.0_wp
994	sums_l_l = 0.0_wp
995	sums_wsts_bc_l = 0.0_wp
996
997	!
998	!-- Initialize model variables
999	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1000	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1001	!
1002	!-- First model run of a possible job queue.
1003	!-- Initial profiles of the variables must be computes.
1004	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
1005
1006	CALL location_message( 'initializing with 1D model profiles', .FALSE. )
1007	!
1008	!-- Use solutions of the 1D model as initial profiles,
1009	!-- start 1D model
1010	CALL init_1d_model
1011	!
1012	!-- Transfer initial profiles to the arrays of the 3D model
1013	DO i = nxlg, nxrg
1014	DO j = nysg, nyng
1015	e(:,j,i) = e1d
1016	kh(:,j,i) = kh1d
1017	km(:,j,i) = km1d
1018	pt(:,j,i) = pt_init
1019	u(:,j,i) = u1d
1020	v(:,j,i) = v1d
1021	ENDDO
1022	ENDDO
1023
1024	IF ( humidity ) THEN
1025	DO i = nxlg, nxrg
1026	DO j = nysg, nyng
1027	q(:,j,i) = q_init
1028	ENDDO
1029	ENDDO
1030	IF ( cloud_physics .AND. microphysics_morrison ) THEN
1031	DO i = nxlg, nxrg
1032	DO j = nysg, nyng
1033	qc(:,j,i) = 0.0_wp
1034	nc(:,j,i) = 0.0_wp
1035	ENDDO
1036	ENDDO
1037	ENDIF
1038	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1039	DO i = nxlg, nxrg
1040	DO j = nysg, nyng
1041	qr(:,j,i) = 0.0_wp
1042	nr(:,j,i) = 0.0_wp
1043	ENDDO
1044	ENDDO
1045	ENDIF
1046	ENDIF
1047
1048	IF ( passive_scalar ) THEN
1049	DO i = nxlg, nxrg
1050	DO j = nysg, nyng
1051	s(:,j,i) = s_init
1052	ENDDO
1053	ENDDO
1054	ENDIF
1055
1056	IF ( .NOT. constant_diffusion ) THEN
1057	DO i = nxlg, nxrg
1058	DO j = nysg, nyng
1059	e(:,j,i) = e1d
1060	ENDDO
1061	ENDDO
1062	!
1063	!-- Store initial profiles for output purposes etc.
1064	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
1065
1066	ELSE
1067	e = 0.0_wp ! must be set, because used in
1068	ENDIF
1069	!
1070	!-- Inside buildings set velocities back to zero
1071	IF ( topography /= 'flat' ) THEN
1072	DO i = nxlg, nxrg
1073	DO j = nysg, nyng
1074	DO k = nzb, nzt
1075	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, &
1076	BTEST( wall_flags_0(k,j,i), 1 ) )
1077	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, &
1078	BTEST( wall_flags_0(k,j,i), 2 ) )
1079	ENDDO
1080	ENDDO
1081	ENDDO
1082
1083	!
1084	!-- WARNING: The extra boundary conditions set after running the
1085	!-- ------- 1D model impose an error on the divergence one layer
1086	!-- below the topography; need to correct later
1087	!-- ATTENTION: Provisional correction for Piacsek & Williams
1088	!-- --------- advection scheme: keep u and v zero one layer below
1089	!-- the topography.
1090	IF ( ibc_uv_b == 1 ) THEN
1091	!
1092	!-- Neumann condition
1093	DO i = nxl-1, nxr+1
1094	DO j = nys-1, nyn+1
1095	u(nzb,j,i) = u(nzb+1,j,i)
1096	v(nzb,j,i) = v(nzb+1,j,i)
1097	ENDDO
1098	ENDDO
1099
1100	ENDIF
1101
1102	ENDIF
1103
1104	CALL location_message( 'finished', .TRUE. )
1105
1106	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
1107	THEN
1108
1109	CALL location_message( 'initializing with constant profiles', .FALSE. )
1110	!
1111	!-- Overwrite initial profiles in case of synthetic turbulence generator
1112	IF( use_synthetic_turbulence_generator ) THEN
1113	CALL stg_init
1114	ENDIF
1115
1116	!
1117	!-- Use constructed initial profiles (velocity constant with height,
1118	!-- temperature profile with constant gradient)
1119	DO i = nxlg, nxrg
1120	DO j = nysg, nyng
1121	pt(:,j,i) = pt_init
1122	u(:,j,i) = u_init
1123	v(:,j,i) = v_init
1124	ENDDO
1125	ENDDO
1126
1127	!
1128	!-- Set initial horizontal velocities at the lowest computational grid
1129	!-- levels to zero in order to avoid too small time steps caused by the
1130	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
1131	!-- in the limiting formula!).
1132	IF ( ibc_uv_b /= 1 ) THEN
1133	DO i = nxlg, nxrg
1134	DO j = nysg, nyng
1135	DO k = nzb, nzt
1136	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, &
1137	BTEST( wall_flags_0(k,j,i), 20 ) )
1138	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, &
1139	BTEST( wall_flags_0(k,j,i), 21 ) )
1140	ENDDO
1141	ENDDO
1142	ENDDO
1143	ENDIF
1144
1145	IF ( humidity ) THEN
1146	DO i = nxlg, nxrg
1147	DO j = nysg, nyng
1148	q(:,j,i) = q_init
1149	ENDDO
1150	ENDDO
1151	IF ( cloud_physics .AND. microphysics_morrison ) THEN
1152	DO i = nxlg, nxrg
1153	DO j = nysg, nyng
1154	qc(:,j,i) = 0.0_wp
1155	nc(:,j,i) = 0.0_wp
1156	ENDDO
1157	ENDDO
1158	ENDIF
1159
1160	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1161	DO i = nxlg, nxrg
1162	DO j = nysg, nyng
1163	qr(:,j,i) = 0.0_wp
1164	nr(:,j,i) = 0.0_wp
1165	ENDDO
1166	ENDDO
1167	ENDIF
1168
1169	ENDIF
1170
1171	IF ( passive_scalar ) THEN
1172	DO i = nxlg, nxrg
1173	DO j = nysg, nyng
1174	s(:,j,i) = s_init
1175	ENDDO
1176	ENDDO
1177	ENDIF
1178
1179	IF ( ocean ) THEN
1180	DO i = nxlg, nxrg
1181	DO j = nysg, nyng
1182	sa(:,j,i) = sa_init
1183	ENDDO
1184	ENDDO
1185	ENDIF
1186
1187	IF ( constant_diffusion ) THEN
1188	km = km_constant
1189	kh = km / prandtl_number
1190	e = 0.0_wp
1191	ELSEIF ( e_init > 0.0_wp ) THEN
1192	DO k = nzb+1, nzt
1193	km(k,:,:) = 0.1_wp * l_grid(k) * SQRT( e_init )
1194	ENDDO
1195	km(nzb,:,:) = km(nzb+1,:,:)
1196	km(nzt+1,:,:) = km(nzt,:,:)
1197	kh = km / prandtl_number
1198	e = e_init
1199	ELSE
1200	IF ( .NOT. ocean ) THEN
1201	kh = 0.01_wp ! there must exist an initial diffusion, because
1202	km = 0.01_wp ! otherwise no TKE would be produced by the
1203	! production terms, as long as not yet
1204	! e = (u/cm)*2 at k=nzb+1
1205	ELSE
1206	kh = 0.00001_wp
1207	km = 0.00001_wp
1208	ENDIF
1209	e = 0.0_wp
1210	ENDIF
1211	!
1212	!-- Compute initial temperature field and other constants used in case
1213	!-- of a sloping surface
1214	IF ( sloping_surface ) CALL init_slope
1215
1216	CALL location_message( 'finished', .TRUE. )
1217
1218	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
1219	THEN
1220
1221	CALL location_message( 'initializing by user', .FALSE. )
1222	!
1223	!-- Initialization will completely be done by the user
1224	CALL user_init_3d_model
1225
1226	CALL location_message( 'finished', .TRUE. )
1227
1228	ENDIF
1229
1230	CALL location_message( 'initializing statistics, boundary conditions, etc.', &
1231	.FALSE. )
1232
1233	!
1234	!-- Bottom boundary
1235	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
1236	u(nzb,:,:) = 0.0_wp
1237	v(nzb,:,:) = 0.0_wp
1238	ENDIF
1239
1240	!
1241	!-- Apply channel flow boundary condition
1242	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
1243	u(nzt+1,:,:) = 0.0_wp
1244	v(nzt+1,:,:) = 0.0_wp
1245	ENDIF
1246
1247	!
1248	!-- Calculate virtual potential temperature
1249	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
1250
1251	!
1252	!-- Store initial profiles for output purposes etc.
1253	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
1254	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
1255	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
1256	hom(nzb,1,5,:) = 0.0_wp
1257	hom(nzb,1,6,:) = 0.0_wp
1258	ENDIF
1259	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
1260	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
1261	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
1262
1263	IF ( ocean ) THEN
1264	!
1265	!-- Store initial salinity profile
1266	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
1267	ENDIF
1268
1269	IF ( humidity ) THEN
1270	!
1271	!-- Store initial profile of total water content, virtual potential
1272	!-- temperature
1273	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
1274	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
1275	IF ( cloud_physics .OR. cloud_droplets ) THEN
1276	!
1277	!-- Store initial profile of specific humidity and potential
1278	!-- temperature
1279	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
1280	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
1281	ENDIF
1282	ENDIF
1283
1284	IF ( passive_scalar ) THEN
1285	!
1286	!-- Store initial scalar profile
1287	hom(:,1,115,:) = SPREAD( s(:,nys,nxl), 2, statistic_regions+1 )
1288	ENDIF
1289
1290	!
1291	!-- Initialize the random number generators (from numerical recipes)
1292	CALL random_function_ini
1293
1294	IF ( random_generator == 'random-parallel' ) THEN
1295	CALL init_parallel_random_generator(nx, ny, nys, nyn, nxl, nxr)
1296	ENDIF
1297	!
1298	!-- Set the reference state to be used in the buoyancy terms (for ocean runs
1299	!-- the reference state will be set (overwritten) in init_ocean)
1300	IF ( use_single_reference_value ) THEN
1301	IF ( .NOT. humidity ) THEN
1302	ref_state(:) = pt_reference
1303	ELSE
1304	ref_state(:) = vpt_reference
1305	ENDIF
1306	ELSE
1307	IF ( .NOT. humidity ) THEN
1308	ref_state(:) = pt_init(:)
1309	ELSE
1310	ref_state(:) = vpt(:,nys,nxl)
1311	ENDIF
1312	ENDIF
1313
1314	!
1315	!-- For the moment, vertical velocity is zero
1316	w = 0.0_wp
1317
1318	!
1319	!-- Initialize array sums (must be defined in first call of pres)
1320	sums = 0.0_wp
1321
1322	!
1323	!-- In case of iterative solvers, p must get an initial value
1324	IF ( psolver(1:9) == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
1325
1326	!
1327	!-- Treating cloud physics, liquid water content and precipitation amount
1328	!-- are zero at beginning of the simulation
1329	IF ( cloud_physics ) THEN
1330	ql = 0.0_wp
1331	qc = 0.0_wp
1332
1333	precipitation_amount = 0.0_wp
1334	ENDIF
1335	!
1336	!-- Impose vortex with vertical axis on the initial velocity profile
1337	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
1338	CALL init_rankine
1339	ENDIF
1340
1341	!
1342	!-- Impose temperature anomaly (advection test only)
1343	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
1344	CALL init_pt_anomaly
1345	ENDIF
1346
1347	!
1348	!-- If required, change the surface temperature at the start of the 3D run
1349	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
1350	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
1351	ENDIF
1352
1353	!
1354	!-- If required, change the surface humidity/scalar at the start of the 3D
1355	!-- run
1356	IF ( humidity .AND. q_surface_initial_change /= 0.0_wp ) &
1357	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
1358
1359	IF ( passive_scalar .AND. s_surface_initial_change /= 0.0_wp ) &
1360	s(nzb,:,:) = s(nzb,:,:) + s_surface_initial_change
1361
1362
1363	!
1364	!-- Initialize old and new time levels.
1365	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
1366	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1367
1368	IF ( humidity ) THEN
1369	tq_m = 0.0_wp
1370	q_p = q
1371	IF ( cloud_physics .AND. microphysics_morrison ) THEN
1372	tqc_m = 0.0_wp
1373	qc_p = qc
1374	tnc_m = 0.0_wp
1375	nc_p = nc
1376	ENDIF
1377	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1378	tqr_m = 0.0_wp
1379	qr_p = qr
1380	tnr_m = 0.0_wp
1381	nr_p = nr
1382	ENDIF
1383	ENDIF
1384
1385	IF ( passive_scalar ) THEN
1386	ts_m = 0.0_wp
1387	s_p = s
1388	ENDIF
1389
1390	IF ( ocean ) THEN
1391	tsa_m = 0.0_wp
1392	sa_p = sa
1393	ENDIF
1394
1395	CALL location_message( 'finished', .TRUE. )
1396
1397	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
1398	TRIM( initializing_actions ) == 'cyclic_fill' ) &
1399	THEN
1400
1401	CALL location_message( 'initializing in case of restart / cyclic_fill', &
1402	.FALSE. )
1403	!
1404	!-- Initialize surface elements and its attributes, e.g. heat- and
1405	!-- momentumfluxes, roughness, scaling parameters. As number of surface
1406	!-- elements might be different between runs, e.g. in case of cyclic fill,
1407	!-- and not all surface elements are read, surface elements need to be
1408	!-- initialized before.
1409	CALL init_surfaces
1410	!
1411	!-- When reading data for cyclic fill of 3D prerun data files, read
1412	!-- some of the global variables from the restart file which are required
1413	!-- for initializing the inflow
1414	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1415
1416	DO i = 0, io_blocks-1
1417	IF ( i == io_group ) THEN
1418	CALL read_parts_of_var_list
1419	CALL close_file( 13 )
1420	ENDIF
1421	#if defined( __parallel )
1422	CALL MPI_BARRIER( comm2d, ierr )
1423	#endif
1424	ENDDO
1425
1426	ENDIF
1427
1428	!
1429	!-- Read binary data from restart file
1430	DO i = 0, io_blocks-1
1431	IF ( i == io_group ) THEN
1432	CALL read_3d_binary
1433	ENDIF
1434	#if defined( __parallel )
1435	CALL MPI_BARRIER( comm2d, ierr )
1436	#endif
1437	ENDDO
1438
1439	!
1440	!-- Initialization of the turbulence recycling method
1441	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1442	turbulent_inflow ) THEN
1443	!
1444	!-- First store the profiles to be used at the inflow.
1445	!-- These profiles are the (temporally) and horizontally averaged vertical
1446	!-- profiles from the prerun. Alternatively, prescribed profiles
1447	!-- for u,v-components can be used.
1448	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,7) )
1449
1450	IF ( use_prescribed_profile_data ) THEN
1451	mean_inflow_profiles(:,1) = u_init ! u
1452	mean_inflow_profiles(:,2) = v_init ! v
1453	ELSE
1454	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
1455	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
1456	ENDIF
1457	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
1458	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
1459	IF ( humidity ) &
1460	mean_inflow_profiles(:,6) = hom_sum(:,41,0) ! q
1461	IF ( passive_scalar ) &
1462	mean_inflow_profiles(:,7) = hom_sum(:,115,0) ! s
1463
1464	!
1465	!-- If necessary, adjust the horizontal flow field to the prescribed
1466	!-- profiles
1467	IF ( use_prescribed_profile_data ) THEN
1468	DO i = nxlg, nxrg
1469	DO j = nysg, nyng
1470	DO k = nzb, nzt+1
1471	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
1472	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
1473	ENDDO
1474	ENDDO
1475	ENDDO
1476	ENDIF
1477
1478	!
1479	!-- Use these mean profiles at the inflow (provided that Dirichlet
1480	!-- conditions are used)
1481	IF ( inflow_l ) THEN
1482	DO j = nysg, nyng
1483	DO k = nzb, nzt+1
1484	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
1485	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
1486	w(k,j,nxlg:-1) = 0.0_wp
1487	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
1488	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
1489	IF ( humidity ) &
1490	q(k,j,nxlg:-1) = mean_inflow_profiles(k,6)
1491	IF ( passive_scalar ) &
1492	s(k,j,nxlg:-1) = mean_inflow_profiles(k,7)
1493	ENDDO
1494	ENDDO
1495	ENDIF
1496
1497	!
1498	!-- Calculate the damping factors to be used at the inflow. For a
1499	!-- turbulent inflow the turbulent fluctuations have to be limited
1500	!-- vertically because otherwise the turbulent inflow layer will grow
1501	!-- in time.
1502	IF ( inflow_damping_height == 9999999.9_wp ) THEN
1503	!
1504	!-- Default: use the inversion height calculated by the prerun; if
1505	!-- this is zero, inflow_damping_height must be explicitly
1506	!-- specified.
1507	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
1508	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
1509	ELSE
1510	WRITE( message_string, * ) 'inflow_damping_height must be ', &
1511	'explicitly specified because&the inversion height ', &
1512	'calculated by the prerun is zero.'
1513	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
1514	ENDIF
1515
1516	ENDIF
1517
1518	IF ( inflow_damping_width == 9999999.9_wp ) THEN
1519	!
1520	!-- Default for the transition range: one tenth of the undamped
1521	!-- layer
1522	inflow_damping_width = 0.1_wp * inflow_damping_height
1523
1524	ENDIF
1525
1526	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
1527
1528	DO k = nzb, nzt+1
1529
1530	IF ( zu(k) <= inflow_damping_height ) THEN
1531	inflow_damping_factor(k) = 1.0_wp
1532	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
1533	inflow_damping_factor(k) = 1.0_wp - &
1534	( zu(k) - inflow_damping_height ) / &
1535	inflow_damping_width
1536	ELSE
1537	inflow_damping_factor(k) = 0.0_wp
1538	ENDIF
1539
1540	ENDDO
1541
1542	ENDIF
1543
1544	!
1545	!-- Inside buildings set velocities and TKE back to zero
1546	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1547	topography /= 'flat' ) THEN
1548	!
1549	!-- Inside buildings set velocities and TKE back to zero.
1550	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
1551	!-- maybe revise later.
1552	DO i = nxlg, nxrg
1553	DO j = nysg, nyng
1554	DO k = nzb, nzt
1555	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, &
1556	BTEST( wall_flags_0(k,j,i), 1 ) )
1557	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, &
1558	BTEST( wall_flags_0(k,j,i), 2 ) )
1559	w(k,j,i) = MERGE( w(k,j,i), 0.0_wp, &
1560	BTEST( wall_flags_0(k,j,i), 3 ) )
1561	e(k,j,i) = MERGE( e(k,j,i), 0.0_wp, &
1562	BTEST( wall_flags_0(k,j,i), 0 ) )
1563	tu_m(k,j,i) = MERGE( tu_m(k,j,i), 0.0_wp, &
1564	BTEST( wall_flags_0(k,j,i), 1 ) )
1565	tv_m(k,j,i) = MERGE( tv_m(k,j,i), 0.0_wp, &
1566	BTEST( wall_flags_0(k,j,i), 2 ) )
1567	tw_m(k,j,i) = MERGE( tw_m(k,j,i), 0.0_wp, &
1568	BTEST( wall_flags_0(k,j,i), 3 ) )
1569	te_m(k,j,i) = MERGE( te_m(k,j,i), 0.0_wp, &
1570	BTEST( wall_flags_0(k,j,i), 0 ) )
1571	tpt_m(k,j,i) = MERGE( tpt_m(k,j,i), 0.0_wp, &
1572	BTEST( wall_flags_0(k,j,i), 0 ) )
1573	ENDDO
1574	ENDDO
1575	ENDDO
1576
1577	ENDIF
1578
1579	!
1580	!-- Calculate initial temperature field and other constants used in case
1581	!-- of a sloping surface
1582	IF ( sloping_surface ) CALL init_slope
1583
1584	!
1585	!-- Initialize new time levels (only done in order to set boundary values
1586	!-- including ghost points)
1587	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1588	IF ( humidity ) THEN
1589	q_p = q
1590	IF ( cloud_physics .AND. microphysics_morrison ) THEN
1591	qc_p = qc
1592	nc_p = nc
1593	ENDIF
1594	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1595	qr_p = qr
1596	nr_p = nr
1597	ENDIF
1598	ENDIF
1599	IF ( passive_scalar ) s_p = s
1600	IF ( ocean ) sa_p = sa
1601
1602	!
1603	!-- Allthough tendency arrays are set in prognostic_equations, they have
1604	!-- have to be predefined here because they are used (but multiplied with 0)
1605	!-- there before they are set.
1606	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
1607	IF ( humidity ) THEN
1608	tq_m = 0.0_wp
1609	IF ( cloud_physics .AND. microphysics_morrison ) THEN
1610	tqc_m = 0.0_wp
1611	tnc_m = 0.0_wp
1612	ENDIF
1613	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1614	tqr_m = 0.0_wp
1615	tnr_m = 0.0_wp
1616	ENDIF
1617	ENDIF
1618	IF ( passive_scalar ) ts_m = 0.0_wp
1619	IF ( ocean ) tsa_m = 0.0_wp
1620	!
1621	!-- Initialize synthetic turbulence generator in case of restart.
1622	IF ( TRIM( initializing_actions ) == 'read_restart_data' .AND. &
1623	use_synthetic_turbulence_generator ) CALL stg_init
1624
1625	CALL location_message( 'finished', .TRUE. )
1626
1627	ELSE
1628	!
1629	!-- Actually this part of the programm should not be reached
1630	message_string = 'unknown initializing problem'
1631	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
1632	ENDIF
1633
1634
1635	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1636	!
1637	!-- Initialize old timelevels needed for radiation boundary conditions
1638	IF ( outflow_l ) THEN
1639	u_m_l(:,:,:) = u(:,:,1:2)
1640	v_m_l(:,:,:) = v(:,:,0:1)
1641	w_m_l(:,:,:) = w(:,:,0:1)
1642	ENDIF
1643	IF ( outflow_r ) THEN
1644	u_m_r(:,:,:) = u(:,:,nx-1:nx)
1645	v_m_r(:,:,:) = v(:,:,nx-1:nx)
1646	w_m_r(:,:,:) = w(:,:,nx-1:nx)
1647	ENDIF
1648	IF ( outflow_s ) THEN
1649	u_m_s(:,:,:) = u(:,0:1,:)
1650	v_m_s(:,:,:) = v(:,1:2,:)
1651	w_m_s(:,:,:) = w(:,0:1,:)
1652	ENDIF
1653	IF ( outflow_n ) THEN
1654	u_m_n(:,:,:) = u(:,ny-1:ny,:)
1655	v_m_n(:,:,:) = v(:,ny-1:ny,:)
1656	w_m_n(:,:,:) = w(:,ny-1:ny,:)
1657	ENDIF
1658
1659	ENDIF
1660
1661	!
1662	!-- Calculate the initial volume flow at the right and north boundary
1663	IF ( conserve_volume_flow ) THEN
1664
1665	IF ( use_prescribed_profile_data ) THEN
1666
1667	volume_flow_initial_l = 0.0_wp
1668	volume_flow_area_l = 0.0_wp
1669
1670	IF ( nxr == nx ) THEN
1671	DO j = nys, nyn
1672	DO k = nzb+1, nzt
1673	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1674	u_init(k) * dzw(k) &
1675	* MERGE( 1.0_wp, 0.0_wp, &
1676	BTEST( wall_flags_0(k,j,nxr), 1 )&
1677	)
1678
1679	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
1680	* MERGE( 1.0_wp, 0.0_wp, &
1681	BTEST( wall_flags_0(k,j,nxr), 1 )&
1682	)
1683	ENDDO
1684	ENDDO
1685	ENDIF
1686
1687	IF ( nyn == ny ) THEN
1688	DO i = nxl, nxr
1689	DO k = nzb+1, nzt
1690	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1691	v_init(k) * dzw(k) &
1692	* MERGE( 1.0_wp, 0.0_wp, &
1693	BTEST( wall_flags_0(k,nyn,i), 2 )&
1694	)
1695	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
1696	* MERGE( 1.0_wp, 0.0_wp, &
1697	BTEST( wall_flags_0(k,nyn,i), 2 )&
1698	)
1699	ENDDO
1700	ENDDO
1701	ENDIF
1702
1703	#if defined( __parallel )
1704	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1705	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1706	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1707	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1708
1709	#else
1710	volume_flow_initial = volume_flow_initial_l
1711	volume_flow_area = volume_flow_area_l
1712	#endif
1713
1714	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1715
1716	volume_flow_initial_l = 0.0_wp
1717	volume_flow_area_l = 0.0_wp
1718
1719	IF ( nxr == nx ) THEN
1720	DO j = nys, nyn
1721	DO k = nzb+1, nzt
1722	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1723	hom_sum(k,1,0) * dzw(k) &
1724	* MERGE( 1.0_wp, 0.0_wp, &
1725	BTEST( wall_flags_0(k,j,nx), 1 ) &
1726	)
1727	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
1728	* MERGE( 1.0_wp, 0.0_wp, &
1729	BTEST( wall_flags_0(k,j,nx), 1 ) &
1730	)
1731	ENDDO
1732	ENDDO
1733	ENDIF
1734
1735	IF ( nyn == ny ) THEN
1736	DO i = nxl, nxr
1737	DO k = nzb+1, nzt
1738	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1739	hom_sum(k,2,0) * dzw(k) &
1740	* MERGE( 1.0_wp, 0.0_wp, &
1741	BTEST( wall_flags_0(k,ny,i), 2 ) &
1742	)
1743	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
1744	* MERGE( 1.0_wp, 0.0_wp, &
1745	BTEST( wall_flags_0(k,ny,i), 2 ) &
1746	)
1747	ENDDO
1748	ENDDO
1749	ENDIF
1750
1751	#if defined( __parallel )
1752	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1753	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1754	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1755	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1756
1757	#else
1758	volume_flow_initial = volume_flow_initial_l
1759	volume_flow_area = volume_flow_area_l
1760	#endif
1761
1762	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1763
1764	volume_flow_initial_l = 0.0_wp
1765	volume_flow_area_l = 0.0_wp
1766
1767	IF ( nxr == nx ) THEN
1768	DO j = nys, nyn
1769	DO k = nzb+1, nzt
1770	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1771	u(k,j,nx) * dzw(k) &
1772	* MERGE( 1.0_wp, 0.0_wp, &
1773	BTEST( wall_flags_0(k,j,nx), 1 ) &
1774	)
1775	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
1776	* MERGE( 1.0_wp, 0.0_wp, &
1777	BTEST( wall_flags_0(k,j,nx), 1 ) &
1778	)
1779	ENDDO
1780	ENDDO
1781	ENDIF
1782
1783	IF ( nyn == ny ) THEN
1784	DO i = nxl, nxr
1785	DO k = nzb+1, nzt
1786	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1787	v(k,ny,i) * dzw(k) &
1788	* MERGE( 1.0_wp, 0.0_wp, &
1789	BTEST( wall_flags_0(k,ny,i), 2 ) &
1790	)
1791	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
1792	* MERGE( 1.0_wp, 0.0_wp, &
1793	BTEST( wall_flags_0(k,ny,i), 2 ) &
1794	)
1795	ENDDO
1796	ENDDO
1797	ENDIF
1798
1799	#if defined( __parallel )
1800	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1801	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1802	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1803	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1804
1805	#else
1806	volume_flow_initial = volume_flow_initial_l
1807	volume_flow_area = volume_flow_area_l
1808	#endif
1809
1810	ENDIF
1811
1812	!
1813	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
1814	!-- from u\|v_bulk instead
1815	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
1816	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
1817	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
1818	ENDIF
1819
1820	ENDIF
1821	!
1822	!-- Initialize surface elements and its attributes, e.g. heat- and
1823	!-- momentumfluxes, roughness, scaling parameters.
1824	!-- This is already done in case of restart data.
1825	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1826	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1827	CALL init_surfaces
1828	!
1829	!-- Finally, if random_heatflux is set, disturb shf at horizontal
1830	!-- surfaces. Actually, this should be done in surface_mod, where all other
1831	!-- initializations of surface quantities are done. However, this
1832	!-- would create a ring dependency, hence, it is done here. Maybe delete
1833	!-- disturb_heatflux and tranfer the respective code directly into the
1834	!-- initialization in surface_mod.
1835	IF ( use_surface_fluxes .AND. constant_heatflux .AND. &
1836	random_heatflux ) THEN
1837	IF ( surf_def_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_def_h(0) )
1838	IF ( surf_lsm_h%ns >= 1 ) CALL disturb_heatflux( surf_lsm_h )
1839	IF ( surf_usm_h%ns >= 1 ) CALL disturb_heatflux( surf_usm_h )
1840	ENDIF
1841	ENDIF
1842
1843	!
1844	!-- Initialize surface forcing corresponding to large-scale forcing. Therein,
1845	!-- initialize heat-fluxes, etc. via datatype. Revise it later!
1846	IF ( large_scale_forcing .AND. lsf_surf ) THEN
1847	IF ( use_surface_fluxes .AND. constant_heatflux ) THEN
1848	CALL ls_forcing_surf ( simulated_time )
1849	ENDIF
1850	ENDIF
1851	!
1852	!-- Initialize quantities for special advections schemes
1853	CALL init_advec
1854
1855	!
1856	!-- Impose random perturbation on the horizontal velocity field and then
1857	!-- remove the divergences from the velocity field at the initial stage
1858	IF ( create_disturbances .AND. disturbance_energy_limit /= 0.0_wp .AND. &
1859	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1860	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1861
1862	CALL location_message( 'creating initial disturbances', .FALSE. )
1863	CALL disturb_field( 'u', tend, u )
1864	CALL disturb_field( 'v', tend, v )
1865	CALL location_message( 'finished', .TRUE. )
1866
1867	CALL location_message( 'calling pressure solver', .FALSE. )
1868	n_sor = nsor_ini
1869	CALL pres
1870	n_sor = nsor
1871	CALL location_message( 'finished', .TRUE. )
1872
1873	ENDIF
1874
1875	!
1876	!-- If required, initialize quantities needed for the plant canopy model
1877	IF ( plant_canopy ) THEN
1878	CALL location_message( 'initializing plant canopy model', .FALSE. )
1879	CALL pcm_init
1880	CALL location_message( 'finished', .TRUE. )
1881	ENDIF
1882
1883	!
1884	!-- If required, initialize dvrp-software
1885	IF ( dt_dvrp /= 9999999.9_wp ) CALL init_dvrp
1886
1887	IF ( ocean ) THEN
1888	!
1889	!-- Initialize quantities needed for the ocean model
1890	CALL init_ocean
1891
1892	ELSE
1893	!
1894	!-- Initialize quantities for handling cloud physics
1895	!-- This routine must be called before lpm_init, because
1896	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
1897	!-- lpm_init) is not defined.
1898	CALL init_cloud_physics
1899	!
1900	!-- Initialize bulk cloud microphysics
1901	CALL microphysics_init
1902	ENDIF
1903
1904	!
1905	!-- If required, initialize particles
1906	IF ( particle_advection ) CALL lpm_init
1907
1908	!
1909	!-- If required, initialize quantities needed for the LSM
1910	IF ( land_surface ) THEN
1911	CALL location_message( 'initializing land surface model', .FALSE. )
1912	CALL lsm_init
1913	CALL location_message( 'finished', .TRUE. )
1914	ENDIF
1915
1916	!
1917	!-- Initialize surface layer (done after LSM as roughness length are required
1918	!-- for initialization
1919	IF ( constant_flux_layer ) THEN
1920	CALL location_message( 'initializing surface layer', .FALSE. )
1921	CALL init_surface_layer_fluxes
1922	CALL location_message( 'finished', .TRUE. )
1923	ENDIF
1924
1925	!
1926	!-- If required, initialize radiation model
1927	IF ( radiation ) THEN
1928	CALL location_message( 'initializing radiation model', .FALSE. )
1929	CALL radiation_init
1930	CALL location_message( 'finished', .TRUE. )
1931	ENDIF
1932
1933
1934	!
1935	!-- Temporary solution to add LSM and radiation time series to the default
1936	!-- output
1937	IF ( land_surface .OR. radiation ) THEN
1938	IF ( TRIM( radiation_scheme ) == 'rrtmg' ) THEN
1939	dots_num = dots_num + 15
1940	ELSE
1941	dots_num = dots_num + 11
1942	ENDIF
1943	ENDIF
1944
1945	!
1946	!-- If required, initialize urban surface model
1947	IF ( urban_surface ) THEN
1948	CALL location_message( 'initializing urban surface model', .FALSE. )
1949	CALL usm_init_urban_surface
1950	CALL location_message( 'finished', .TRUE. )
1951	ENDIF
1952
1953	!
1954	!-- If required, initialize quantities needed for the wind turbine model
1955	IF ( wind_turbine ) THEN
1956	CALL location_message( 'initializing wind turbine model', .FALSE. )
1957	CALL wtm_init
1958	CALL location_message( 'finished', .TRUE. )
1959	ENDIF
1960
1961
1962	!
1963	!-- Initialize the ws-scheme.
1964	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
1965
1966	!
1967	!-- Setting weighting factors for calculation of perturbation pressure
1968	!-- and turbulent quantities from the RK substeps
1969	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
1970
1971	weight_substep(1) = 1._wp/6._wp
1972	weight_substep(2) = 3._wp/10._wp
1973	weight_substep(3) = 8._wp/15._wp
1974
1975	weight_pres(1) = 1._wp/3._wp
1976	weight_pres(2) = 5._wp/12._wp
1977	weight_pres(3) = 1._wp/4._wp
1978
1979	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
1980
1981	weight_substep(1) = 1._wp/2._wp
1982	weight_substep(2) = 1._wp/2._wp
1983
1984	weight_pres(1) = 1._wp/2._wp
1985	weight_pres(2) = 1._wp/2._wp
1986
1987	ELSE ! for Euler-method
1988
1989	weight_substep(1) = 1.0_wp
1990	weight_pres(1) = 1.0_wp
1991
1992	ENDIF
1993
1994	!
1995	!-- Initialize Rayleigh damping factors
1996	rdf = 0.0_wp
1997	rdf_sc = 0.0_wp
1998	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
1999	IF ( .NOT. ocean ) THEN
2000	DO k = nzb+1, nzt
2001	IF ( zu(k) >= rayleigh_damping_height ) THEN
2002	rdf(k) = rayleigh_damping_factor * &
2003	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
2004	/ ( zu(nzt) - rayleigh_damping_height ) ) &
2005	)**2
2006	ENDIF
2007	ENDDO
2008	ELSE
2009	DO k = nzt, nzb+1, -1
2010	IF ( zu(k) <= rayleigh_damping_height ) THEN
2011	rdf(k) = rayleigh_damping_factor * &
2012	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
2013	/ ( rayleigh_damping_height - zu(nzb+1) ) ) &
2014	)**2
2015	ENDIF
2016	ENDDO
2017	ENDIF
2018	ENDIF
2019	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
2020
2021	!
2022	!-- Initialize the starting level and the vertical smoothing factor used for
2023	!-- the external pressure gradient
2024	dp_smooth_factor = 1.0_wp
2025	IF ( dp_external ) THEN
2026	!
2027	!-- Set the starting level dp_level_ind_b only if it has not been set before
2028	!-- (e.g. in init_grid).
2029	IF ( dp_level_ind_b == 0 ) THEN
2030	ind_array = MINLOC( ABS( dp_level_b - zu ) )
2031	dp_level_ind_b = ind_array(1) - 1 + nzb
2032	! MINLOC uses lower array bound 1
2033	ENDIF
2034	IF ( dp_smooth ) THEN
2035	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
2036	DO k = dp_level_ind_b+1, nzt
2037	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
2038	( REAL( k - dp_level_ind_b, KIND=wp ) / &
2039	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
2040	ENDDO
2041	ENDIF
2042	ENDIF
2043
2044	!
2045	!-- Initialize damping zone for the potential temperature in case of
2046	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
2047	!-- at the inflow boundary and decreases to zero at pt_damping_width.
2048	ptdf_x = 0.0_wp
2049	ptdf_y = 0.0_wp
2050	IF ( bc_lr_dirrad ) THEN
2051	DO i = nxl, nxr
2052	IF ( ( i * dx ) < pt_damping_width ) THEN
2053	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
2054	REAL( pt_damping_width - i * dx, KIND=wp ) / ( &
2055	REAL( pt_damping_width, KIND=wp ) ) ) )**2
2056	ENDIF
2057	ENDDO
2058	ELSEIF ( bc_lr_raddir ) THEN
2059	DO i = nxl, nxr
2060	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
2061	ptdf_x(i) = pt_damping_factor * &
2062	SIN( pi * 0.5_wp * &
2063	( ( i - nx ) * dx + pt_damping_width ) / &
2064	REAL( pt_damping_width, KIND=wp ) )**2
2065	ENDIF
2066	ENDDO
2067	ELSEIF ( bc_ns_dirrad ) THEN
2068	DO j = nys, nyn
2069	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
2070	ptdf_y(j) = pt_damping_factor * &
2071	SIN( pi * 0.5_wp * &
2072	( ( j - ny ) * dy + pt_damping_width ) / &
2073	REAL( pt_damping_width, KIND=wp ) )**2
2074	ENDIF
2075	ENDDO
2076	ELSEIF ( bc_ns_raddir ) THEN
2077	DO j = nys, nyn
2078	IF ( ( j * dy ) < pt_damping_width ) THEN
2079	ptdf_y(j) = pt_damping_factor * &
2080	SIN( pi * 0.5_wp * &
2081	( pt_damping_width - j * dy ) / &
2082	REAL( pt_damping_width, KIND=wp ) )**2
2083	ENDIF
2084	ENDDO
2085	ENDIF
2086
2087	!
2088	!-- Pre-set masks for regional statistics. Default is the total model domain.
2089	!-- Ghost points are excluded because counting values at the ghost boundaries
2090	!-- would bias the statistics
2091	rmask = 1.0_wp
2092	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
2093	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
2094
2095	!
2096	!-- User-defined initializing actions. Check afterwards, if maximum number
2097	!-- of allowed timeseries is exceeded
2098	CALL user_init
2099
2100	IF ( dots_num > dots_max ) THEN
2101	WRITE( message_string, * ) 'number of time series quantities exceeds', &
2102	' its maximum of dots_max = ', dots_max, &
2103	' &Please increase dots_max in modules.f90.'
2104	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
2105	ENDIF
2106
2107	!
2108	!-- Input binary data file is not needed anymore. This line must be placed
2109	!-- after call of user_init!
2110	CALL close_file( 13 )
2111
2112	!
2113	!-- Compute total sum of active mask grid points
2114	!-- and the mean surface level height for each statistic region
2115	!-- ngp_2dh: number of grid points of a horizontal cross section through the
2116	!-- total domain
2117	!-- ngp_3d: number of grid points of the total domain
2118	ngp_2dh_outer_l = 0
2119	ngp_2dh_outer = 0
2120	ngp_2dh_s_inner_l = 0
2121	ngp_2dh_s_inner = 0
2122	ngp_2dh_l = 0
2123	ngp_2dh = 0
2124	ngp_3d_inner_l = 0.0_wp
2125	ngp_3d_inner = 0
2126	ngp_3d = 0
2127	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
2128
2129	mean_surface_level_height = 0.0_wp
2130	mean_surface_level_height_l = 0.0_wp
2131
2132	!
2133	!-- To do: New concept for these non-topography grid points!
2134	DO sr = 0, statistic_regions
2135	DO i = nxl, nxr
2136	DO j = nys, nyn
2137	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
2138	!
2139	!-- All xy-grid points
2140	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
2141	!
2142	!-- Determine mean surface-level height. In case of downward-
2143	!-- facing walls are present, more than one surface level exist.
2144	!-- In this case, use the lowest surface-level height.
2145	IF ( surf_def_h(0)%start_index(j,i) <= &
2146	surf_def_h(0)%end_index(j,i) ) THEN
2147	m = surf_def_h(0)%start_index(j,i)
2148	k = surf_def_h(0)%k(m)
2149	mean_surface_level_height_l(sr) = &
2150	mean_surface_level_height_l(sr) + zw(k-1)
2151	ENDIF
2152	IF ( surf_lsm_h%start_index(j,i) <= &
2153	surf_lsm_h%end_index(j,i) ) THEN
2154	m = surf_lsm_h%start_index(j,i)
2155	k = surf_lsm_h%k(m)
2156	mean_surface_level_height_l(sr) = &
2157	mean_surface_level_height_l(sr) + zw(k-1)
2158	ENDIF
2159	IF ( surf_usm_h%start_index(j,i) <= &
2160	surf_usm_h%end_index(j,i) ) THEN
2161	m = surf_usm_h%start_index(j,i)
2162	k = surf_usm_h%k(m)
2163	mean_surface_level_height_l(sr) = &
2164	mean_surface_level_height_l(sr) + zw(k-1)
2165	ENDIF
2166
2167	k_surf = k - 1
2168
2169	DO k = nzb, nzt+1
2170	!
2171	!-- xy-grid points above topography
2172	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + &
2173	MERGE( 1, 0, BTEST( wall_flags_0(k,j,i), 24 ) )
2174
2175	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + &
2176	MERGE( 1, 0, BTEST( wall_flags_0(k,j,i), 22 ) )
2177
2178	ENDDO
2179	!
2180	!-- All grid points of the total domain above topography
2181	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + ( nz - k_surf + 2 )
2182
2183
2184
2185	ENDIF
2186	ENDDO
2187	ENDDO
2188	ENDDO
2189
2190	sr = statistic_regions + 1
2191	#if defined( __parallel )
2192	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2193	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
2194	comm2d, ierr )
2195	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2196	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
2197	MPI_INTEGER, MPI_SUM, comm2d, ierr )
2198	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2199	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
2200	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
2201	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2202	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
2203	MPI_SUM, comm2d, ierr )
2204	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
2205	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2206	CALL MPI_ALLREDUCE( mean_surface_level_height_l(0), &
2207	mean_surface_level_height(0), sr, MPI_REAL, &
2208	MPI_SUM, comm2d, ierr )
2209	mean_surface_level_height = mean_surface_level_height / REAL( ngp_2dh )
2210	#else
2211	ngp_2dh = ngp_2dh_l
2212	ngp_2dh_outer = ngp_2dh_outer_l
2213	ngp_2dh_s_inner = ngp_2dh_s_inner_l
2214	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
2215	mean_surface_level_height = mean_surface_level_height_l / REAL( ngp_2dh_l )
2216	#endif
2217
2218	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
2219	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
2220
2221	!
2222	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
2223	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
2224	!-- the respective subdomain lie below the surface topography
2225	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
2226	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
2227	ngp_3d_inner(:) )
2228	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
2229
2230	DEALLOCATE( mean_surface_level_height_l, ngp_2dh_l, ngp_2dh_outer_l, &
2231	ngp_3d_inner_l, ngp_3d_inner_tmp )
2232
2233	CALL location_message( 'leaving init_3d_model', .TRUE. )
2234
2235	END SUBROUTINE init_3d_model

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