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source: palm/trunk/SOURCE/init_3d_model.f90 @ 2319

Last change on this file since 2319 was 2292, checked in by schwenkel, 7 years ago

implementation of new bulk microphysics scheme

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/palm/branches/forwind/SOURCE/init_3d_model.f90 1564-1913

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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 2292 2017-06-20 09:51:42Z suehring $
27	! Implementation of new microphysic scheme: cloud_scheme = 'morrison'
28	! includes two more prognostic equations for cloud drop concentration (nc)
29	! and cloud water content (qc).
30	!
31	! 2277 2017-06-12 10:47:51Z kanani
32	! Removed unused variable sums_up_fraction_l
33	!
34	! 2270 2017-06-09 12:18:47Z maronga
35	! dots_num must be increased when LSM and/or radiation is used
36	!
37	! 2259 2017-06-08 09:09:11Z gronemeier
38	! Implemented synthetic turbulence generator
39	!
40	! 2252 2017-06-07 09:35:37Z knoop
41	! rho_air now depending on surface_pressure even in Boussinesq mode
42	!
43	! 2233 2017-05-30 18:08:54Z suehring
44	!
45	! 2232 2017-05-30 17:47:52Z suehring
46	! Adjustments to new topography and surface concept:
47	! - Modify passed parameters for disturb_field
48	! - Topography representation via flags
49	! - Remove unused arrays.
50	! - Move initialization of surface-related quantities to surface_mod
51	!
52	! 2172 2017-03-08 15:55:25Z knoop
53	! Bugfix: moved parallel random generator initialization into its module
54	!
55	! 2118 2017-01-17 16:38:49Z raasch
56	! OpenACC directives removed
57	!
58	! 2037 2016-10-26 11:15:40Z knoop
59	! Anelastic approximation implemented
60	!
61	! 2031 2016-10-21 15:11:58Z knoop
62	! renamed variable rho to rho_ocean
63	!
64	! 2011 2016-09-19 17:29:57Z kanani
65	! Flag urban_surface is now defined in module control_parameters.
66	!
67	! 2007 2016-08-24 15:47:17Z kanani
68	! Added support for urban surface model,
69	! adjusted location_message in case of plant_canopy
70	!
71	! 2000 2016-08-20 18:09:15Z knoop
72	! Forced header and separation lines into 80 columns
73	!
74	! 1992 2016-08-12 15:14:59Z suehring
75	! Initializaton of scalarflux at model top
76	! Bugfixes in initialization of surface and top salinity flux, top scalar and
77	! humidity fluxes
78	!
79	! 1960 2016-07-12 16:34:24Z suehring
80	! Separate humidity and passive scalar
81	! Increase dimension for mean_inflow_profiles
82	! Remove inadvertent write-statement
83	! Bugfix, large-scale forcing is still not implemented for passive scalars
84	!
85	! 1957 2016-07-07 10:43:48Z suehring
86	! flight module added
87	!
88	! 1920 2016-05-30 10:50:15Z suehring
89	! Initialize us with very small number to avoid segmentation fault during
90	! calculation of Obukhov length
91	!
92	! 1918 2016-05-27 14:35:57Z raasch
93	! intermediate_timestep_count is set 0 instead 1 for first call of pres,
94	! bugfix: initialization of local sum arrays are moved to the beginning of the
95	! routine because otherwise results from pres are overwritten
96	!
97	! 1914 2016-05-26 14:44:07Z witha
98	! Added initialization of the wind turbine model
99	!
100	! 1878 2016-04-19 12:30:36Z hellstea
101	! The zeroth element of weight_pres removed as unnecessary
102	!
103	! 1849 2016-04-08 11:33:18Z hoffmann
104	! Adapted for modularization of microphysics.
105	! precipitation_amount, precipitation_rate, prr moved to arrays_3d.
106	! Initialization of nc_1d, nr_1d, pt_1d, qc_1d, qr_1d, q_1d moved to
107	! microphysics_init.
108	!
109	! 1845 2016-04-08 08:29:13Z raasch
110	! nzb_2d replaced by nzb_u\|v_inner
111	!
112	! 1833 2016-04-07 14:23:03Z raasch
113	! initialization of spectra quantities moved to spectra_mod
114	!
115	! 1831 2016-04-07 13:15:51Z hoffmann
116	! turbulence renamed collision_turbulence
117	!
118	! 1826 2016-04-07 12:01:39Z maronga
119	! Renamed radiation calls.
120	! Renamed canopy model calls.
121	!
122	! 1822 2016-04-07 07:49:42Z hoffmann
123	! icloud_scheme replaced by microphysics_*
124	!
125	! 1817 2016-04-06 15:44:20Z maronga
126	! Renamed lsm calls.
127	!
128	! 1815 2016-04-06 13:49:59Z raasch
129	! zero-settings for velocities inside topography re-activated (was deactivated
130	! in r1762)
131	!
132	! 1788 2016-03-10 11:01:04Z maronga
133	! Added z0q.
134	! Syntax layout improved.
135	!
136	! 1783 2016-03-06 18:36:17Z raasch
137	! netcdf module name changed + related changes
138	!
139	! 1764 2016-02-28 12:45:19Z raasch
140	! bugfix: increase size of volume_flow_area_l and volume_flow_initial_l by 1
141	!
142	! 1762 2016-02-25 12:31:13Z hellstea
143	! Introduction of nested domain feature
144	!
145	! 1738 2015-12-18 13:56:05Z raasch
146	! calculate mean surface level height for each statistic region
147	!
148	! 1734 2015-12-02 12:17:12Z raasch
149	! no initial disturbances in case that the disturbance energy limit has been
150	! set zero
151	!
152	! 1707 2015-11-02 15:24:52Z maronga
153	! Bugfix: transfer of Richardson number from 1D model to Obukhov length caused
154	! devision by zero in neutral stratification
155	!
156	! 1691 2015-10-26 16:17:44Z maronga
157	! Call to init_surface_layer added. rif is replaced by ol and zeta.
158	!
159	! 1682 2015-10-07 23:56:08Z knoop
160	! Code annotations made doxygen readable
161	!
162	! 1615 2015-07-08 18:49:19Z suehring
163	! Enable turbulent inflow for passive_scalar and humidity
164	!
165	! 1585 2015-04-30 07:05:52Z maronga
166	! Initialization of radiation code is now done after LSM initializtion
167	!
168	! 1575 2015-03-27 09:56:27Z raasch
169	! adjustments for psolver-queries
170	!
171	! 1551 2015-03-03 14:18:16Z maronga
172	! Allocation of land surface arrays is now done in the subroutine lsm_init_arrays,
173	! which is part of land_surface_model.
174	!
175	! 1507 2014-12-10 12:14:18Z suehring
176	! Bugfix: set horizontal velocity components to zero inside topography
177	!
178	! 1496 2014-12-02 17:25:50Z maronga
179	! Added initialization of the land surface and radiation schemes
180	!
181	! 1484 2014-10-21 10:53:05Z kanani
182	! Changes due to new module structure of the plant canopy model:
183	! canopy-related initialization (e.g. lad and canopy_heat_flux) moved to new
184	! subroutine init_plant_canopy within the module plant_canopy_model_mod,
185	! call of subroutine init_plant_canopy added.
186	!
187	! 1431 2014-07-15 14:47:17Z suehring
188	! var_d added, in order to normalize spectra.
189	!
190	! 1429 2014-07-15 12:53:45Z knoop
191	! Ensemble run capability added to parallel random number generator
192	!
193	! 1411 2014-05-16 18:01:51Z suehring
194	! Initial horizontal velocity profiles were not set to zero at the first vertical
195	! grid level in case of non-cyclic lateral boundary conditions.
196	!
197	! 1406 2014-05-16 13:47:01Z raasch
198	! bugfix: setting of initial velocities at k=1 to zero not in case of a
199	! no-slip boundary condition for uv
200	!
201	! 1402 2014-05-09 14:25:13Z raasch
202	! location messages modified
203	!
204	! 1400 2014-05-09 14:03:54Z knoop
205	! Parallel random number generator added
206	!
207	! 1384 2014-05-02 14:31:06Z raasch
208	! location messages added
209	!
210	! 1361 2014-04-16 15:17:48Z hoffmann
211	! tend_* removed
212	! Bugfix: w_subs is not allocated anymore if it is already allocated
213	!
214	! 1359 2014-04-11 17:15:14Z hoffmann
215	! module lpm_init_mod added to use statements, because lpm_init has become a
216	! module
217	!
218	! 1353 2014-04-08 15:21:23Z heinze
219	! REAL constants provided with KIND-attribute
220	!
221	! 1340 2014-03-25 19:45:13Z kanani
222	! REAL constants defined as wp-kind
223	!
224	! 1322 2014-03-20 16:38:49Z raasch
225	! REAL constants defined as wp-kind
226	! module interfaces removed
227	!
228	! 1320 2014-03-20 08:40:49Z raasch
229	! ONLY-attribute added to USE-statements,
230	! kind-parameters added to all INTEGER and REAL declaration statements,
231	! kinds are defined in new module kinds,
232	! revision history before 2012 removed,
233	! comment fields (!:) to be used for variable explanations added to
234	! all variable declaration statements
235	!
236	! 1316 2014-03-17 07:44:59Z heinze
237	! Bugfix: allocation of w_subs
238	!
239	! 1299 2014-03-06 13:15:21Z heinze
240	! Allocate w_subs due to extension of large scale subsidence in combination
241	! with large scale forcing data (LSF_DATA)
242	!
243	! 1241 2013-10-30 11:36:58Z heinze
244	! Overwrite initial profiles in case of nudging
245	! Inititialize shf and qsws in case of large_scale_forcing
246	!
247	! 1221 2013-09-10 08:59:13Z raasch
248	! +rflags_s_inner in copyin statement, use copyin for most arrays instead of
249	! copy
250	!
251	! 1212 2013-08-15 08:46:27Z raasch
252	! array tri is allocated and included in data copy statement
253	!
254	! 1195 2013-07-01 12:27:57Z heinze
255	! Bugfix: move allocation of ref_state to parin.f90 and read_var_list.f90
256	!
257	! 1179 2013-06-14 05:57:58Z raasch
258	! allocate and set ref_state to be used in buoyancy terms
259	!
260	! 1171 2013-05-30 11:27:45Z raasch
261	! diss array is allocated with full size if accelerator boards are used
262	!
263	! 1159 2013-05-21 11:58:22Z fricke
264	! -bc_lr_dirneu, bc_lr_neudir, bc_ns_dirneu, bc_ns_neudir
265	!
266	! 1153 2013-05-10 14:33:08Z raasch
267	! diss array is allocated with dummy elements even if it is not needed
268	! (required by PGI 13.4 / CUDA 5.0)
269	!
270	! 1115 2013-03-26 18:16:16Z hoffmann
271	! unused variables removed
272	!
273	! 1113 2013-03-10 02:48:14Z raasch
274	! openACC directive modified
275	!
276	! 1111 2013-03-08 23:54:10Z raasch
277	! openACC directives added for pres
278	! array diss allocated only if required
279	!
280	! 1092 2013-02-02 11:24:22Z raasch
281	! unused variables removed
282	!
283	! 1065 2012-11-22 17:42:36Z hoffmann
284	! allocation of diss (dissipation rate) in case of turbulence = .TRUE. added
285	!
286	! 1053 2012-11-13 17:11:03Z hoffmann
287	! allocation and initialisation of necessary data arrays for the two-moment
288	! cloud physics scheme the two new prognostic equations (nr, qr):
289	! +dr, lambda_r, mu_r, sed_, xr, s, sws, swst, , _p, t_m, _1, _2, _3,
290	! +tend_*, prr
291	!
292	! 1036 2012-10-22 13:43:42Z raasch
293	! code put under GPL (PALM 3.9)
294	!
295	! 1032 2012-10-21 13:03:21Z letzel
296	! save memory by not allocating pt_2 in case of neutral = .T.
297	!
298	! 1025 2012-10-07 16:04:41Z letzel
299	! bugfix: swap indices of mask for ghost boundaries
300	!
301	! 1015 2012-09-27 09:23:24Z raasch
302	! mask is set to zero for ghost boundaries
303	!
304	! 1010 2012-09-20 07:59:54Z raasch
305	! cpp switch __nopointer added for pointer free version
306	!
307	! 1003 2012-09-14 14:35:53Z raasch
308	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
309	!
310	! 1001 2012-09-13 14:08:46Z raasch
311	! all actions concerning leapfrog scheme removed
312	!
313	! 996 2012-09-07 10:41:47Z raasch
314	! little reformatting
315	!
316	! 978 2012-08-09 08:28:32Z fricke
317	! outflow damping layer removed
318	! roughness length for scalar quantites z0h added
319	! damping zone for the potential temperatur in case of non-cyclic lateral
320	! boundaries added
321	! initialization of ptdf_x, ptdf_y
322	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
323	!
324	! 849 2012-03-15 10:35:09Z raasch
325	! init_particles renamed lpm_init
326	!
327	! 825 2012-02-19 03:03:44Z raasch
328	! wang_collision_kernel renamed wang_kernel
329	!
330	! Revision 1.1 1998/03/09 16:22:22 raasch
331	! Initial revision
332	!
333	!
334	! Description:
335	! ------------
336	!> Allocation of arrays and initialization of the 3D model via
337	!> a) pre-run the 1D model
338	!> or
339	!> b) pre-set constant linear profiles
340	!> or
341	!> c) read values of a previous run
342	!------------------------------------------------------------------------------!
343	SUBROUTINE init_3d_model
344
345
346	USE advec_ws
347
348	USE arrays_3d
349
350	USE cloud_parameters, &
351	ONLY: cp, l_v, r_d
352
353	USE constants, &
354	ONLY: pi
355
356	USE control_parameters
357
358	USE flight_mod, &
359	ONLY: flight_init
360
361	USE grid_variables, &
362	ONLY: dx, dy, ddx2_mg, ddy2_mg
363
364	USE indices
365
366	USE lpm_init_mod, &
367	ONLY: lpm_init
368
369	USE kinds
370
371	USE land_surface_model_mod, &
372	ONLY: lsm_init, lsm_init_arrays
373
374	USE ls_forcing_mod
375
376	USE microphysics_mod, &
377	ONLY: collision_turbulence, microphysics_init
378
379	USE model_1d, &
380	ONLY: e1d, kh1d, km1d, l1d, rif1d, u1d, us1d, usws1d, v1d, vsws1d
381
382	USE netcdf_interface, &
383	ONLY: dots_max, dots_num
384
385	USE particle_attributes, &
386	ONLY: particle_advection, use_sgs_for_particles, wang_kernel
387
388	USE pegrid
389
390	USE plant_canopy_model_mod, &
391	ONLY: pcm_init, plant_canopy
392
393	USE radiation_model_mod, &
394	ONLY: radiation_init, radiation, radiation_scheme
395
396	USE random_function_mod
397
398	USE random_generator_parallel, &
399	ONLY: init_parallel_random_generator
400
401	USE statistics, &
402	ONLY: hom, hom_sum, mean_surface_level_height, pr_palm, rmask, &
403	statistic_regions, sums, sums_divnew_l, sums_divold_l, sums_l, &
404	sums_l_l, sums_wsts_bc_l, ts_value, &
405	weight_pres, weight_substep
406
407	USE synthetic_turbulence_generator_mod, &
408	ONLY: stg_init, use_synthetic_turbulence_generator
409
410	USE surface_layer_fluxes_mod, &
411	ONLY: init_surface_layer_fluxes
412
413	USE surface_mod, &
414	ONLY : init_surface_arrays, init_surfaces, surf_def_h, surf_lsm_h, &
415	surf_usm_h
416
417	USE transpose_indices
418
419	USE urban_surface_mod, &
420	ONLY: usm_init_urban_surface
421
422	USE wind_turbine_model_mod, &
423	ONLY: wtm_init, wtm_init_arrays, wind_turbine
424
425	IMPLICIT NONE
426
427	INTEGER(iwp) :: i !<
428	INTEGER(iwp) :: ind_array(1) !<
429	INTEGER(iwp) :: j !<
430	INTEGER(iwp) :: k !<
431	INTEGER(iwp) :: k_surf !< surface level index
432	INTEGER(iwp) :: m !< index of surface element in surface data type
433	INTEGER(iwp) :: sr !< index of statistic region
434
435	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !<
436
437	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !<
438	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !<
439
440	REAL(wp) :: t_surface !< air temperature at the surface
441
442	REAL(wp), DIMENSION(:), ALLOCATABLE :: p_hydrostatic !< hydrostatic pressure
443
444	INTEGER(iwp) :: l !< loop variable
445	INTEGER(iwp) :: nzt_l !< index of top PE boundary for multigrid level
446	REAL(wp) :: dx_l !< grid spacing along x on different multigrid level
447	REAL(wp) :: dy_l !< grid spacing along y on different multigrid level
448
449	REAL(wp), DIMENSION(1:3) :: volume_flow_area_l !<
450	REAL(wp), DIMENSION(1:3) :: volume_flow_initial_l !<
451
452	REAL(wp), DIMENSION(:), ALLOCATABLE :: mean_surface_level_height_l !<
453	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !<
454	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !<
455
456
457	CALL location_message( 'allocating arrays', .FALSE. )
458	!
459	!-- Allocate arrays
460	ALLOCATE( mean_surface_level_height(0:statistic_regions), &
461	mean_surface_level_height_l(0:statistic_regions), &
462	ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
463	ngp_3d(0:statistic_regions), &
464	ngp_3d_inner(0:statistic_regions), &
465	ngp_3d_inner_l(0:statistic_regions), &
466	ngp_3d_inner_tmp(0:statistic_regions), &
467	sums_divnew_l(0:statistic_regions), &
468	sums_divold_l(0:statistic_regions) )
469	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
470	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
471	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
472	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
473	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
474	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
475	sums(nzb:nzt+1,pr_palm+max_pr_user), &
476	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
477	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
478	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
479	ts_value(dots_max,0:statistic_regions) )
480	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
481
482	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
483	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
484	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
485	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
486	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
487
488	#if defined( __nopointer )
489	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
490	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
491	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
492	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
493	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
494	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
495	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
496	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
497	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
498	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
499	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
500	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
501	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
502	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
503	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
504	#else
505	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
506	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
507	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
508	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
509	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
510	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
511	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
512	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
513	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
514	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
515	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
516	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
517	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
518	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
519	IF ( .NOT. neutral ) THEN
520	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
521	ENDIF
522	#endif
523
524	!
525	!-- Following array is required for perturbation pressure within the iterative
526	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
527	!-- the weighted average of the substeps and cannot be used in the Poisson
528	!-- solver.
529	IF ( psolver == 'sor' ) THEN
530	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
531	ELSEIF ( psolver(1:9) == 'multigrid' ) THEN
532	!
533	!-- For performance reasons, multigrid is using one ghost layer only
534	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
535	ENDIF
536
537	!
538	!-- Array for storing constant coeffficients of the tridiagonal solver
539	IF ( psolver == 'poisfft' ) THEN
540	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
541	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
542	ENDIF
543
544	IF ( humidity ) THEN
545	!
546	!-- 3D-humidity
547	#if defined( __nopointer )
548	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
549	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
550	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
551	#else
552	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
553	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
554	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
555	#endif
556
557	!
558	!-- 3D-arrays needed for humidity
559	IF ( humidity ) THEN
560	#if defined( __nopointer )
561	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
562	#else
563	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
564	#endif
565
566	IF ( cloud_physics ) THEN
567	!
568	!-- Liquid water content
569	#if defined( __nopointer )
570	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
571	#else
572	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
573	#endif
574
575	!
576	!-- 3D-cloud water content
577	IF ( .NOT. microphysics_morrison ) THEN
578	#if defined( __nopointer )
579	ALLOCATE( qc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
580	#else
581	ALLOCATE( qc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
582	#endif
583	ENDIF
584	!
585	!-- Precipitation amount and rate (only needed if output is switched)
586	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
587	precipitation_rate(nysg:nyng,nxlg:nxrg) )
588
589	!
590	!-- 3d-precipitation rate
591	ALLOCATE( prr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
592
593	IF ( microphysics_morrison ) THEN
594	!
595	!-- 3D-cloud drop water content, cloud drop concentration arrays
596	#if defined( __nopointer )
597	ALLOCATE( nc(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
598	nc_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
599	qc(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
600	qc_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
601	tnc_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg)
602	tqc_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
603	#else
604	ALLOCATE( nc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
605	nc_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
606	nc_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
607	qc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
608	qc_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
609	qc_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
610	#endif
611	ENDIF
612
613	IF ( microphysics_seifert ) THEN
614	!
615	!-- 3D-rain water content, rain drop concentration arrays
616	#if defined( __nopointer )
617	ALLOCATE( nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
618	nr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
619	qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
620	qr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
621	tnr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
622	tqr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
623	#else
624	ALLOCATE( nr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
625	nr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
626	nr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
627	qr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
628	qr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
629	qr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
630	#endif
631	ENDIF
632
633	ENDIF
634
635	IF ( cloud_droplets ) THEN
636	!
637	!-- Liquid water content, change in liquid water content
638	#if defined( __nopointer )
639	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
640	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
641	#else
642	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
643	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
644	#endif
645	!
646	!-- Real volume of particles (with weighting), volume of particles
647	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
648	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
649	ENDIF
650
651	ENDIF
652
653	ENDIF
654
655
656	IF ( passive_scalar ) THEN
657
658	!
659	!-- 3D scalar arrays
660	#if defined( __nopointer )
661	ALLOCATE( s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
662	s_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
663	ts_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
664	#else
665	ALLOCATE( s_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
666	s_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
667	s_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
668	#endif
669	ENDIF
670
671	IF ( ocean ) THEN
672	#if defined( __nopointer )
673	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
674	rho_ocean(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
675	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
676	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
677	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
678	#else
679	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
680	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
681	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
682	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
683	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
684	prho => prho_1
685	rho_ocean => rho_1 ! routines calc_mean_profile and diffusion_e require
686	! density to be apointer
687	#endif
688	ENDIF
689
690	!
691	!-- Allocation of anelastic and Boussinesq approximation specific arrays
692	ALLOCATE( p_hydrostatic(nzb:nzt+1) )
693	ALLOCATE( rho_air(nzb:nzt+1) )
694	ALLOCATE( rho_air_zw(nzb:nzt+1) )
695	ALLOCATE( drho_air(nzb:nzt+1) )
696	ALLOCATE( drho_air_zw(nzb:nzt+1) )
697
698	!
699	!-- Density profile calculation for anelastic approximation
700	t_surface = pt_surface * ( surface_pressure / 1000.0_wp )**( r_d / cp )
701	IF ( TRIM( approximation ) == 'anelastic' ) THEN
702	DO k = nzb, nzt+1
703	p_hydrostatic(k) = surface_pressure * 100.0_wp * &
704	( 1 - ( g * zu(k) ) / ( cp * t_surface ) &
705	)**( cp / r_d )
706	rho_air(k) = ( p_hydrostatic(k) * &
707	( 100000.0_wp / p_hydrostatic(k) &
708	)**( r_d / cp ) &
709	) / ( r_d * pt_init(k) )
710	ENDDO
711	DO k = nzb, nzt
712	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
713	ENDDO
714	rho_air_zw(nzt+1) = rho_air_zw(nzt) &
715	+ 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
716	ELSE
717	DO k = nzb, nzt+1
718	p_hydrostatic(k) = surface_pressure * 100.0_wp * &
719	( 1 - ( g * zu(nzb) ) / ( cp * t_surface ) &
720	)**( cp / r_d )
721	rho_air(k) = ( p_hydrostatic(k) * &
722	( 100000.0_wp / p_hydrostatic(k) &
723	)**( r_d / cp ) &
724	) / ( r_d * pt_init(nzb) )
725	ENDDO
726	DO k = nzb, nzt
727	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
728	ENDDO
729	rho_air_zw(nzt+1) = rho_air_zw(nzt) &
730	+ 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
731	ENDIF
732
733	!-- compute the inverse density array in order to avoid expencive divisions
734	drho_air = 1.0_wp / rho_air
735	drho_air_zw = 1.0_wp / rho_air_zw
736
737	!
738	!-- Allocation of flux conversion arrays
739	ALLOCATE( heatflux_input_conversion(nzb:nzt+1) )
740	ALLOCATE( waterflux_input_conversion(nzb:nzt+1) )
741	ALLOCATE( momentumflux_input_conversion(nzb:nzt+1) )
742	ALLOCATE( heatflux_output_conversion(nzb:nzt+1) )
743	ALLOCATE( waterflux_output_conversion(nzb:nzt+1) )
744	ALLOCATE( momentumflux_output_conversion(nzb:nzt+1) )
745
746	!
747	!-- calculate flux conversion factors according to approximation and in-/output mode
748	DO k = nzb, nzt+1
749
750	IF ( TRIM( flux_input_mode ) == 'kinematic' ) THEN
751	heatflux_input_conversion(k) = rho_air_zw(k)
752	waterflux_input_conversion(k) = rho_air_zw(k)
753	momentumflux_input_conversion(k) = rho_air_zw(k)
754	ELSEIF ( TRIM( flux_input_mode ) == 'dynamic' ) THEN
755	heatflux_input_conversion(k) = 1.0_wp / cp
756	waterflux_input_conversion(k) = 1.0_wp / l_v
757	momentumflux_input_conversion(k) = 1.0_wp
758	ENDIF
759
760	IF ( TRIM( flux_output_mode ) == 'kinematic' ) THEN
761	heatflux_output_conversion(k) = drho_air_zw(k)
762	waterflux_output_conversion(k) = drho_air_zw(k)
763	momentumflux_output_conversion(k) = drho_air_zw(k)
764	ELSEIF ( TRIM( flux_output_mode ) == 'dynamic' ) THEN
765	heatflux_output_conversion(k) = cp
766	waterflux_output_conversion(k) = l_v
767	momentumflux_output_conversion(k) = 1.0_wp
768	ENDIF
769
770	IF ( .NOT. humidity ) THEN
771	waterflux_input_conversion(k) = 1.0_wp
772	waterflux_output_conversion(k) = 1.0_wp
773	ENDIF
774
775	ENDDO
776
777	!
778	!-- In case of multigrid method, compute grid lengths and grid factors for the
779	!-- grid levels with respective density on each grid
780	IF ( psolver(1:9) == 'multigrid' ) THEN
781
782	ALLOCATE( ddx2_mg(maximum_grid_level) )
783	ALLOCATE( ddy2_mg(maximum_grid_level) )
784	ALLOCATE( dzu_mg(nzb+1:nzt+1,maximum_grid_level) )
785	ALLOCATE( dzw_mg(nzb+1:nzt+1,maximum_grid_level) )
786	ALLOCATE( f1_mg(nzb+1:nzt,maximum_grid_level) )
787	ALLOCATE( f2_mg(nzb+1:nzt,maximum_grid_level) )
788	ALLOCATE( f3_mg(nzb+1:nzt,maximum_grid_level) )
789	ALLOCATE( rho_air_mg(nzb:nzt+1,maximum_grid_level) )
790	ALLOCATE( rho_air_zw_mg(nzb:nzt+1,maximum_grid_level) )
791
792	dzu_mg(:,maximum_grid_level) = dzu
793	rho_air_mg(:,maximum_grid_level) = rho_air
794	!
795	!-- Next line to ensure an equally spaced grid.
796	dzu_mg(1,maximum_grid_level) = dzu(2)
797	rho_air_mg(nzb,maximum_grid_level) = rho_air(nzb) + &
798	(rho_air(nzb) - rho_air(nzb+1))
799
800	dzw_mg(:,maximum_grid_level) = dzw
801	rho_air_zw_mg(:,maximum_grid_level) = rho_air_zw
802	nzt_l = nzt
803	DO l = maximum_grid_level-1, 1, -1
804	dzu_mg(nzb+1,l) = 2.0_wp * dzu_mg(nzb+1,l+1)
805	dzw_mg(nzb+1,l) = 2.0_wp * dzw_mg(nzb+1,l+1)
806	rho_air_mg(nzb,l) = rho_air_mg(nzb,l+1) + (rho_air_mg(nzb,l+1) - rho_air_mg(nzb+1,l+1))
807	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))
808	rho_air_mg(nzb+1,l) = rho_air_mg(nzb+1,l+1)
809	rho_air_zw_mg(nzb+1,l) = rho_air_zw_mg(nzb+1,l+1)
810	nzt_l = nzt_l / 2
811	DO k = 2, nzt_l+1
812	dzu_mg(k,l) = dzu_mg(2k-2,l+1) + dzu_mg(2k-1,l+1)
813	dzw_mg(k,l) = dzw_mg(2k-2,l+1) + dzw_mg(2k-1,l+1)
814	rho_air_mg(k,l) = rho_air_mg(2*k-1,l+1)
815	rho_air_zw_mg(k,l) = rho_air_zw_mg(2*k-1,l+1)
816	ENDDO
817	ENDDO
818
819	nzt_l = nzt
820	dx_l = dx
821	dy_l = dy
822	DO l = maximum_grid_level, 1, -1
823	ddx2_mg(l) = 1.0_wp / dx_l**2
824	ddy2_mg(l) = 1.0_wp / dy_l**2
825	DO k = nzb+1, nzt_l
826	f2_mg(k,l) = rho_air_zw_mg(k,l) / ( dzu_mg(k+1,l) * dzw_mg(k,l) )
827	f3_mg(k,l) = rho_air_zw_mg(k-1,l) / ( dzu_mg(k,l) * dzw_mg(k,l) )
828	f1_mg(k,l) = 2.0_wp * ( ddx2_mg(l) + ddy2_mg(l) ) &
829	* rho_air_mg(k,l) + f2_mg(k,l) + f3_mg(k,l)
830	ENDDO
831	nzt_l = nzt_l / 2
832	dx_l = dx_l * 2.0_wp
833	dy_l = dy_l * 2.0_wp
834	ENDDO
835
836	ENDIF
837
838	!
839	!-- 3D-array for storing the dissipation, needed for calculating the sgs
840	!-- particle velocities
841	IF ( use_sgs_for_particles .OR. wang_kernel .OR. collision_turbulence )&
842	THEN
843	ALLOCATE( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
844	ENDIF
845
846	!
847	!-- 1D-array for large scale subsidence velocity
848	IF ( .NOT. ALLOCATED( w_subs ) ) THEN
849	ALLOCATE ( w_subs(nzb:nzt+1) )
850	w_subs = 0.0_wp
851	ENDIF
852
853	!
854	!-- Arrays to store velocity data from t-dt and the phase speeds which
855	!-- are needed for radiation boundary conditions
856	IF ( outflow_l ) THEN
857	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
858	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
859	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
860	ENDIF
861	IF ( outflow_r ) THEN
862	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
863	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
864	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
865	ENDIF
866	IF ( outflow_l .OR. outflow_r ) THEN
867	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
868	c_w(nzb:nzt+1,nysg:nyng) )
869	ENDIF
870	IF ( outflow_s ) THEN
871	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
872	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
873	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
874	ENDIF
875	IF ( outflow_n ) THEN
876	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
877	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
878	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
879	ENDIF
880	IF ( outflow_s .OR. outflow_n ) THEN
881	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
882	c_w(nzb:nzt+1,nxlg:nxrg) )
883	ENDIF
884	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
885	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
886	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
887	ENDIF
888
889
890	#if ! defined( __nopointer )
891	!
892	!-- Initial assignment of the pointers
893	e => e_1; e_p => e_2; te_m => e_3
894	IF ( .NOT. neutral ) THEN
895	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
896	ELSE
897	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
898	ENDIF
899	u => u_1; u_p => u_2; tu_m => u_3
900	v => v_1; v_p => v_2; tv_m => v_3
901	w => w_1; w_p => w_2; tw_m => w_3
902
903	IF ( humidity ) THEN
904	q => q_1; q_p => q_2; tq_m => q_3
905	IF ( humidity ) THEN
906	vpt => vpt_1
907	IF ( cloud_physics ) THEN
908	ql => ql_1
909	IF ( .NOT. microphysics_morrison ) THEN
910	qc => qc_1
911	ENDIF
912	IF ( microphysics_morrison ) THEN
913	qc => qc_1; qc_p => qc_2; tqc_m => qc_3
914	nc => nc_1; nc_p => nc_2; tnc_m => nc_3
915	ENDIF
916	IF ( microphysics_seifert ) THEN
917	qr => qr_1; qr_p => qr_2; tqr_m => qr_3
918	nr => nr_1; nr_p => nr_2; tnr_m => nr_3
919	ENDIF
920	ENDIF
921	ENDIF
922	IF ( cloud_droplets ) THEN
923	ql => ql_1
924	ql_c => ql_2
925	ENDIF
926	ENDIF
927
928	IF ( passive_scalar ) THEN
929	s => s_1; s_p => s_2; ts_m => s_3
930	ENDIF
931
932	IF ( ocean ) THEN
933	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
934	ENDIF
935	#endif
936	!
937	!-- Initialize wall arrays
938	CALL init_surface_arrays
939	!
940	!-- Allocate land surface model arrays
941	IF ( land_surface ) THEN
942	CALL lsm_init_arrays
943	ENDIF
944
945	!
946	!-- Allocate wind turbine model arrays
947	IF ( wind_turbine ) THEN
948	CALL wtm_init_arrays
949	ENDIF
950
951	!
952	!-- Initialize virtual flight measurements
953	IF ( virtual_flight ) THEN
954	CALL flight_init
955	ENDIF
956
957	!
958	!-- Allocate arrays containing the RK coefficient for calculation of
959	!-- perturbation pressure and turbulent fluxes. At this point values are
960	!-- set for pressure calculation during initialization (where no timestep
961	!-- is done). Further below the values needed within the timestep scheme
962	!-- will be set.
963	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
964	weight_pres(1:intermediate_timestep_count_max) )
965	weight_substep = 1.0_wp
966	weight_pres = 1.0_wp
967	intermediate_timestep_count = 0 ! needed when simulated_time = 0.0
968
969	CALL location_message( 'finished', .TRUE. )
970
971	!
972	!-- Initialize local summation arrays for routine flow_statistics.
973	!-- This is necessary because they may not yet have been initialized when they
974	!-- are called from flow_statistics (or - depending on the chosen model run -
975	!-- are never initialized)
976	sums_divnew_l = 0.0_wp
977	sums_divold_l = 0.0_wp
978	sums_l_l = 0.0_wp
979	sums_wsts_bc_l = 0.0_wp
980
981	!
982	!-- Initialize model variables
983	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
984	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
985	!
986	!-- First model run of a possible job queue.
987	!-- Initial profiles of the variables must be computes.
988	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
989
990	CALL location_message( 'initializing with 1D model profiles', .FALSE. )
991	!
992	!-- Use solutions of the 1D model as initial profiles,
993	!-- start 1D model
994	CALL init_1d_model
995	!
996	!-- Transfer initial profiles to the arrays of the 3D model
997	DO i = nxlg, nxrg
998	DO j = nysg, nyng
999	e(:,j,i) = e1d
1000	kh(:,j,i) = kh1d
1001	km(:,j,i) = km1d
1002	pt(:,j,i) = pt_init
1003	u(:,j,i) = u1d
1004	v(:,j,i) = v1d
1005	ENDDO
1006	ENDDO
1007
1008	IF ( humidity ) THEN
1009	DO i = nxlg, nxrg
1010	DO j = nysg, nyng
1011	q(:,j,i) = q_init
1012	ENDDO
1013	ENDDO
1014	IF ( cloud_physics .AND. microphysics_morrison ) THEN
1015	DO i = nxlg, nxrg
1016	DO j = nysg, nyng
1017	qc(:,j,i) = 0.0_wp
1018	nc(:,j,i) = 0.0_wp
1019	ENDDO
1020	ENDDO
1021	ENDIF
1022	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1023	DO i = nxlg, nxrg
1024	DO j = nysg, nyng
1025	qr(:,j,i) = 0.0_wp
1026	nr(:,j,i) = 0.0_wp
1027	ENDDO
1028	ENDDO
1029	ENDIF
1030	ENDIF
1031
1032	IF ( passive_scalar ) THEN
1033	DO i = nxlg, nxrg
1034	DO j = nysg, nyng
1035	s(:,j,i) = s_init
1036	ENDDO
1037	ENDDO
1038	ENDIF
1039
1040	IF ( .NOT. constant_diffusion ) THEN
1041	DO i = nxlg, nxrg
1042	DO j = nysg, nyng
1043	e(:,j,i) = e1d
1044	ENDDO
1045	ENDDO
1046	!
1047	!-- Store initial profiles for output purposes etc.
1048	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
1049
1050	ELSE
1051	e = 0.0_wp ! must be set, because used in
1052	ENDIF
1053	!
1054	!-- Inside buildings set velocities back to zero
1055	IF ( topography /= 'flat' ) THEN
1056	DO i = nxlg, nxrg
1057	DO j = nysg, nyng
1058	DO k = nzb, nzt
1059	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, &
1060	BTEST( wall_flags_0(k,j,i), 1 ) )
1061	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, &
1062	BTEST( wall_flags_0(k,j,i), 2 ) )
1063	ENDDO
1064	ENDDO
1065	ENDDO
1066
1067	!
1068	!-- WARNING: The extra boundary conditions set after running the
1069	!-- ------- 1D model impose an error on the divergence one layer
1070	!-- below the topography; need to correct later
1071	!-- ATTENTION: Provisional correction for Piacsek & Williams
1072	!-- --------- advection scheme: keep u and v zero one layer below
1073	!-- the topography.
1074	IF ( ibc_uv_b == 1 ) THEN
1075	!
1076	!-- Neumann condition
1077	DO i = nxl-1, nxr+1
1078	DO j = nys-1, nyn+1
1079	u(nzb,j,i) = u(nzb+1,j,i)
1080	v(nzb,j,i) = v(nzb+1,j,i)
1081	ENDDO
1082	ENDDO
1083
1084	ENDIF
1085
1086	ENDIF
1087
1088	CALL location_message( 'finished', .TRUE. )
1089
1090	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
1091	THEN
1092
1093	CALL location_message( 'initializing with constant profiles', .FALSE. )
1094	!
1095	!-- Overwrite initial profiles in case of nudging
1096	IF ( nudging ) THEN
1097	pt_init = ptnudge(:,1)
1098	u_init = unudge(:,1)
1099	v_init = vnudge(:,1)
1100	IF ( humidity ) THEN ! is passive_scalar correct???
1101	q_init = qnudge(:,1)
1102	ENDIF
1103
1104	WRITE( message_string, * ) 'Initial profiles of u, v and ', &
1105	'scalars from NUDGING_DATA are used.'
1106	CALL message( 'init_3d_model', 'PA0370', 0, 0, 0, 6, 0 )
1107	ENDIF
1108
1109	!
1110	!-- Overwrite initial profiles in case of synthetic turbulence generator
1111	IF( use_synthetic_turbulence_generator ) THEN
1112	CALL stg_init
1113	ENDIF
1114
1115	!
1116	!-- Use constructed initial profiles (velocity constant with height,
1117	!-- temperature profile with constant gradient)
1118	DO i = nxlg, nxrg
1119	DO j = nysg, nyng
1120	pt(:,j,i) = pt_init
1121	u(:,j,i) = u_init
1122	v(:,j,i) = v_init
1123	ENDDO
1124	ENDDO
1125
1126	!
1127	!-- Set initial horizontal velocities at the lowest computational grid
1128	!-- levels to zero in order to avoid too small time steps caused by the
1129	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
1130	!-- in the limiting formula!).
1131	IF ( ibc_uv_b /= 1 ) THEN
1132	DO i = nxlg, nxrg
1133	DO j = nysg, nyng
1134	DO k = nzb, nzt
1135	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, &
1136	BTEST( wall_flags_0(k,j,i), 20 ) )
1137	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, &
1138	BTEST( wall_flags_0(k,j,i), 21 ) )
1139	ENDDO
1140	ENDDO
1141	ENDDO
1142	ENDIF
1143
1144	IF ( humidity ) THEN
1145	DO i = nxlg, nxrg
1146	DO j = nysg, nyng
1147	q(:,j,i) = q_init
1148	ENDDO
1149	ENDDO
1150	IF ( cloud_physics .AND. microphysics_morrison ) THEN
1151	DO i = nxlg, nxrg
1152	DO j = nysg, nyng
1153	qc(:,j,i) = 0.0_wp
1154	nc(:,j,i) = 0.0_wp
1155	ENDDO
1156	ENDDO
1157	ENDIF
1158
1159	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1160	DO i = nxlg, nxrg
1161	DO j = nysg, nyng
1162	qr(:,j,i) = 0.0_wp
1163	nr(:,j,i) = 0.0_wp
1164	ENDDO
1165	ENDDO
1166	ENDIF
1167
1168	ENDIF
1169
1170	IF ( passive_scalar ) THEN
1171	DO i = nxlg, nxrg
1172	DO j = nysg, nyng
1173	s(:,j,i) = s_init
1174	ENDDO
1175	ENDDO
1176	ENDIF
1177
1178	IF ( ocean ) THEN
1179	DO i = nxlg, nxrg
1180	DO j = nysg, nyng
1181	sa(:,j,i) = sa_init
1182	ENDDO
1183	ENDDO
1184	ENDIF
1185
1186	IF ( constant_diffusion ) THEN
1187	km = km_constant
1188	kh = km / prandtl_number
1189	e = 0.0_wp
1190	ELSEIF ( e_init > 0.0_wp ) THEN
1191	DO k = nzb+1, nzt
1192	km(k,:,:) = 0.1_wp * l_grid(k) * SQRT( e_init )
1193	ENDDO
1194	km(nzb,:,:) = km(nzb+1,:,:)
1195	km(nzt+1,:,:) = km(nzt,:,:)
1196	kh = km / prandtl_number
1197	e = e_init
1198	ELSE
1199	IF ( .NOT. ocean ) THEN
1200	kh = 0.01_wp ! there must exist an initial diffusion, because
1201	km = 0.01_wp ! otherwise no TKE would be produced by the
1202	! production terms, as long as not yet
1203	! e = (u/cm)*2 at k=nzb+1
1204	ELSE
1205	kh = 0.00001_wp
1206	km = 0.00001_wp
1207	ENDIF
1208	e = 0.0_wp
1209	ENDIF
1210	!
1211	!-- Compute initial temperature field and other constants used in case
1212	!-- of a sloping surface
1213	IF ( sloping_surface ) CALL init_slope
1214
1215	CALL location_message( 'finished', .TRUE. )
1216
1217	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
1218	THEN
1219
1220	CALL location_message( 'initializing by user', .FALSE. )
1221	!
1222	!-- Initialization will completely be done by the user
1223	CALL user_init_3d_model
1224
1225	CALL location_message( 'finished', .TRUE. )
1226
1227	ENDIF
1228
1229	CALL location_message( 'initializing statistics, boundary conditions, etc.', &
1230	.FALSE. )
1231
1232	!
1233	!-- Bottom boundary
1234	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
1235	u(nzb,:,:) = 0.0_wp
1236	v(nzb,:,:) = 0.0_wp
1237	ENDIF
1238
1239	!
1240	!-- Apply channel flow boundary condition
1241	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
1242	u(nzt+1,:,:) = 0.0_wp
1243	v(nzt+1,:,:) = 0.0_wp
1244	ENDIF
1245
1246	!
1247	!-- Calculate virtual potential temperature
1248	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
1249
1250	!
1251	!-- Store initial profiles for output purposes etc.
1252	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
1253	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
1254	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
1255	hom(nzb,1,5,:) = 0.0_wp
1256	hom(nzb,1,6,:) = 0.0_wp
1257	ENDIF
1258	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
1259	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
1260	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
1261
1262	IF ( ocean ) THEN
1263	!
1264	!-- Store initial salinity profile
1265	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
1266	ENDIF
1267
1268	IF ( humidity ) THEN
1269	!
1270	!-- Store initial profile of total water content, virtual potential
1271	!-- temperature
1272	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
1273	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
1274	IF ( cloud_physics .OR. cloud_droplets ) THEN
1275	!
1276	!-- Store initial profile of specific humidity and potential
1277	!-- temperature
1278	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
1279	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
1280	ENDIF
1281	ENDIF
1282
1283	IF ( passive_scalar ) THEN
1284	!
1285	!-- Store initial scalar profile
1286	hom(:,1,115,:) = SPREAD( s(:,nys,nxl), 2, statistic_regions+1 )
1287	ENDIF
1288
1289	!
1290	!-- Initialize the random number generators (from numerical recipes)
1291	CALL random_function_ini
1292
1293	IF ( random_generator == 'random-parallel' ) THEN
1294	CALL init_parallel_random_generator(nx, ny, nys, nyn, nxl, nxr)
1295	ENDIF
1296	!
1297	!-- Set the reference state to be used in the buoyancy terms (for ocean runs
1298	!-- the reference state will be set (overwritten) in init_ocean)
1299	IF ( use_single_reference_value ) THEN
1300	IF ( .NOT. humidity ) THEN
1301	ref_state(:) = pt_reference
1302	ELSE
1303	ref_state(:) = vpt_reference
1304	ENDIF
1305	ELSE
1306	IF ( .NOT. humidity ) THEN
1307	ref_state(:) = pt_init(:)
1308	ELSE
1309	ref_state(:) = vpt(:,nys,nxl)
1310	ENDIF
1311	ENDIF
1312
1313	!
1314	!-- For the moment, vertical velocity is zero
1315	w = 0.0_wp
1316
1317	!
1318	!-- Initialize array sums (must be defined in first call of pres)
1319	sums = 0.0_wp
1320
1321	!
1322	!-- In case of iterative solvers, p must get an initial value
1323	IF ( psolver(1:9) == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
1324
1325	!
1326	!-- Treating cloud physics, liquid water content and precipitation amount
1327	!-- are zero at beginning of the simulation
1328	IF ( cloud_physics ) THEN
1329	ql = 0.0_wp
1330	qc = 0.0_wp
1331
1332	precipitation_amount = 0.0_wp
1333	ENDIF
1334	!
1335	!-- Impose vortex with vertical axis on the initial velocity profile
1336	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
1337	CALL init_rankine
1338	ENDIF
1339
1340	!
1341	!-- Impose temperature anomaly (advection test only)
1342	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
1343	CALL init_pt_anomaly
1344	ENDIF
1345
1346	!
1347	!-- If required, change the surface temperature at the start of the 3D run
1348	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
1349	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
1350	ENDIF
1351
1352	!
1353	!-- If required, change the surface humidity/scalar at the start of the 3D
1354	!-- run
1355	IF ( humidity .AND. q_surface_initial_change /= 0.0_wp ) &
1356	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
1357
1358	IF ( passive_scalar .AND. s_surface_initial_change /= 0.0_wp ) &
1359	s(nzb,:,:) = s(nzb,:,:) + s_surface_initial_change
1360
1361
1362	!
1363	!-- Initialize old and new time levels.
1364	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
1365	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1366
1367	IF ( humidity ) THEN
1368	tq_m = 0.0_wp
1369	q_p = q
1370	IF ( cloud_physics .AND. microphysics_morrison ) THEN
1371	tqc_m = 0.0_wp
1372	qc_p = qc
1373	tnc_m = 0.0_wp
1374	nc_p = nc
1375	ENDIF
1376	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1377	tqr_m = 0.0_wp
1378	qr_p = qr
1379	tnr_m = 0.0_wp
1380	nr_p = nr
1381	ENDIF
1382	ENDIF
1383
1384	IF ( passive_scalar ) THEN
1385	ts_m = 0.0_wp
1386	s_p = s
1387	ENDIF
1388
1389	IF ( ocean ) THEN
1390	tsa_m = 0.0_wp
1391	sa_p = sa
1392	ENDIF
1393
1394	CALL location_message( 'finished', .TRUE. )
1395
1396	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
1397	TRIM( initializing_actions ) == 'cyclic_fill' ) &
1398	THEN
1399
1400	CALL location_message( 'initializing in case of restart / cyclic_fill', &
1401	.FALSE. )
1402	!
1403	!-- Initialize surface elements and its attributes, e.g. heat- and
1404	!-- momentumfluxes, roughness, scaling parameters. As number of surface
1405	!-- elements might be different between runs, e.g. in case of cyclic fill,
1406	!-- and not all surface elements are read, surface elements need to be
1407	!-- initialized before.
1408	CALL init_surfaces
1409	!
1410	!-- When reading data for cyclic fill of 3D prerun data files, read
1411	!-- some of the global variables from the restart file which are required
1412	!-- for initializing the inflow
1413	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1414
1415	DO i = 0, io_blocks-1
1416	IF ( i == io_group ) THEN
1417	CALL read_parts_of_var_list
1418	CALL close_file( 13 )
1419	ENDIF
1420	#if defined( __parallel )
1421	CALL MPI_BARRIER( comm2d, ierr )
1422	#endif
1423	ENDDO
1424
1425	ENDIF
1426
1427	!
1428	!-- Read binary data from restart file
1429	DO i = 0, io_blocks-1
1430	IF ( i == io_group ) THEN
1431	CALL read_3d_binary
1432	ENDIF
1433	#if defined( __parallel )
1434	CALL MPI_BARRIER( comm2d, ierr )
1435	#endif
1436	ENDDO
1437
1438	!
1439	!-- Initialization of the turbulence recycling method
1440	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1441	turbulent_inflow ) THEN
1442	!
1443	!-- First store the profiles to be used at the inflow.
1444	!-- These profiles are the (temporally) and horizontally averaged vertical
1445	!-- profiles from the prerun. Alternatively, prescribed profiles
1446	!-- for u,v-components can be used.
1447	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,7) )
1448
1449	IF ( use_prescribed_profile_data ) THEN
1450	mean_inflow_profiles(:,1) = u_init ! u
1451	mean_inflow_profiles(:,2) = v_init ! v
1452	ELSE
1453	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
1454	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
1455	ENDIF
1456	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
1457	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
1458	IF ( humidity ) &
1459	mean_inflow_profiles(:,6) = hom_sum(:,41,0) ! q
1460	IF ( passive_scalar ) &
1461	mean_inflow_profiles(:,7) = hom_sum(:,115,0) ! s
1462
1463	!
1464	!-- If necessary, adjust the horizontal flow field to the prescribed
1465	!-- profiles
1466	IF ( use_prescribed_profile_data ) THEN
1467	DO i = nxlg, nxrg
1468	DO j = nysg, nyng
1469	DO k = nzb, nzt+1
1470	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
1471	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
1472	ENDDO
1473	ENDDO
1474	ENDDO
1475	ENDIF
1476
1477	!
1478	!-- Use these mean profiles at the inflow (provided that Dirichlet
1479	!-- conditions are used)
1480	IF ( inflow_l ) THEN
1481	DO j = nysg, nyng
1482	DO k = nzb, nzt+1
1483	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
1484	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
1485	w(k,j,nxlg:-1) = 0.0_wp
1486	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
1487	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
1488	IF ( humidity ) &
1489	q(k,j,nxlg:-1) = mean_inflow_profiles(k,6)
1490	IF ( passive_scalar ) &
1491	s(k,j,nxlg:-1) = mean_inflow_profiles(k,7)
1492	ENDDO
1493	ENDDO
1494	ENDIF
1495
1496	!
1497	!-- Calculate the damping factors to be used at the inflow. For a
1498	!-- turbulent inflow the turbulent fluctuations have to be limited
1499	!-- vertically because otherwise the turbulent inflow layer will grow
1500	!-- in time.
1501	IF ( inflow_damping_height == 9999999.9_wp ) THEN
1502	!
1503	!-- Default: use the inversion height calculated by the prerun; if
1504	!-- this is zero, inflow_damping_height must be explicitly
1505	!-- specified.
1506	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
1507	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
1508	ELSE
1509	WRITE( message_string, * ) 'inflow_damping_height must be ', &
1510	'explicitly specified because&the inversion height ', &
1511	'calculated by the prerun is zero.'
1512	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
1513	ENDIF
1514
1515	ENDIF
1516
1517	IF ( inflow_damping_width == 9999999.9_wp ) THEN
1518	!
1519	!-- Default for the transition range: one tenth of the undamped
1520	!-- layer
1521	inflow_damping_width = 0.1_wp * inflow_damping_height
1522
1523	ENDIF
1524
1525	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
1526
1527	DO k = nzb, nzt+1
1528
1529	IF ( zu(k) <= inflow_damping_height ) THEN
1530	inflow_damping_factor(k) = 1.0_wp
1531	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
1532	inflow_damping_factor(k) = 1.0_wp - &
1533	( zu(k) - inflow_damping_height ) / &
1534	inflow_damping_width
1535	ELSE
1536	inflow_damping_factor(k) = 0.0_wp
1537	ENDIF
1538
1539	ENDDO
1540
1541	ENDIF
1542
1543	!
1544	!-- Inside buildings set velocities and TKE back to zero
1545	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1546	topography /= 'flat' ) THEN
1547	!
1548	!-- Inside buildings set velocities and TKE back to zero.
1549	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
1550	!-- maybe revise later.
1551	DO i = nxlg, nxrg
1552	DO j = nysg, nyng
1553	DO k = nzb, nzt
1554	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, &
1555	BTEST( wall_flags_0(k,j,i), 1 ) )
1556	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, &
1557	BTEST( wall_flags_0(k,j,i), 2 ) )
1558	w(k,j,i) = MERGE( w(k,j,i), 0.0_wp, &
1559	BTEST( wall_flags_0(k,j,i), 3 ) )
1560	e(k,j,i) = MERGE( e(k,j,i), 0.0_wp, &
1561	BTEST( wall_flags_0(k,j,i), 0 ) )
1562	tu_m(k,j,i) = MERGE( tu_m(k,j,i), 0.0_wp, &
1563	BTEST( wall_flags_0(k,j,i), 1 ) )
1564	tv_m(k,j,i) = MERGE( tv_m(k,j,i), 0.0_wp, &
1565	BTEST( wall_flags_0(k,j,i), 2 ) )
1566	tw_m(k,j,i) = MERGE( tw_m(k,j,i), 0.0_wp, &
1567	BTEST( wall_flags_0(k,j,i), 3 ) )
1568	te_m(k,j,i) = MERGE( te_m(k,j,i), 0.0_wp, &
1569	BTEST( wall_flags_0(k,j,i), 0 ) )
1570	tpt_m(k,j,i) = MERGE( tpt_m(k,j,i), 0.0_wp, &
1571	BTEST( wall_flags_0(k,j,i), 0 ) )
1572	ENDDO
1573	ENDDO
1574	ENDDO
1575
1576	ENDIF
1577
1578	!
1579	!-- Calculate initial temperature field and other constants used in case
1580	!-- of a sloping surface
1581	IF ( sloping_surface ) CALL init_slope
1582
1583	!
1584	!-- Initialize new time levels (only done in order to set boundary values
1585	!-- including ghost points)
1586	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1587	IF ( humidity ) THEN
1588	q_p = q
1589	IF ( cloud_physics .AND. microphysics_morrison ) THEN
1590	qc_p = qc
1591	nc_p = nc
1592	ENDIF
1593	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1594	qr_p = qr
1595	nr_p = nr
1596	ENDIF
1597	ENDIF
1598	IF ( passive_scalar ) s_p = s
1599	IF ( ocean ) sa_p = sa
1600
1601	!
1602	!-- Allthough tendency arrays are set in prognostic_equations, they have
1603	!-- have to be predefined here because they are used (but multiplied with 0)
1604	!-- there before they are set.
1605	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
1606	IF ( humidity ) THEN
1607	tq_m = 0.0_wp
1608	IF ( cloud_physics .AND. microphysics_morrison ) THEN
1609	tqc_m = 0.0_wp
1610	tnc_m = 0.0_wp
1611	ENDIF
1612	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1613	tqr_m = 0.0_wp
1614	tnr_m = 0.0_wp
1615	ENDIF
1616	ENDIF
1617	IF ( passive_scalar ) ts_m = 0.0_wp
1618	IF ( ocean ) tsa_m = 0.0_wp
1619	!
1620	!-- Initialize synthetic turbulence generator in case of restart.
1621	IF ( TRIM( initializing_actions ) == 'read_restart_data' .AND. &
1622	use_synthetic_turbulence_generator ) CALL stg_init
1623
1624	CALL location_message( 'finished', .TRUE. )
1625
1626	ELSE
1627	!
1628	!-- Actually this part of the programm should not be reached
1629	message_string = 'unknown initializing problem'
1630	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
1631	ENDIF
1632
1633
1634	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1635	!
1636	!-- Initialize old timelevels needed for radiation boundary conditions
1637	IF ( outflow_l ) THEN
1638	u_m_l(:,:,:) = u(:,:,1:2)
1639	v_m_l(:,:,:) = v(:,:,0:1)
1640	w_m_l(:,:,:) = w(:,:,0:1)
1641	ENDIF
1642	IF ( outflow_r ) THEN
1643	u_m_r(:,:,:) = u(:,:,nx-1:nx)
1644	v_m_r(:,:,:) = v(:,:,nx-1:nx)
1645	w_m_r(:,:,:) = w(:,:,nx-1:nx)
1646	ENDIF
1647	IF ( outflow_s ) THEN
1648	u_m_s(:,:,:) = u(:,0:1,:)
1649	v_m_s(:,:,:) = v(:,1:2,:)
1650	w_m_s(:,:,:) = w(:,0:1,:)
1651	ENDIF
1652	IF ( outflow_n ) THEN
1653	u_m_n(:,:,:) = u(:,ny-1:ny,:)
1654	v_m_n(:,:,:) = v(:,ny-1:ny,:)
1655	w_m_n(:,:,:) = w(:,ny-1:ny,:)
1656	ENDIF
1657
1658	ENDIF
1659
1660	!
1661	!-- Calculate the initial volume flow at the right and north boundary
1662	IF ( conserve_volume_flow ) THEN
1663
1664	IF ( use_prescribed_profile_data ) THEN
1665
1666	volume_flow_initial_l = 0.0_wp
1667	volume_flow_area_l = 0.0_wp
1668
1669	IF ( nxr == nx ) THEN
1670	DO j = nys, nyn
1671	DO k = nzb+1, nzt
1672	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1673	u_init(k) * dzw(k) &
1674	* MERGE( 1.0_wp, 0.0_wp, &
1675	BTEST( wall_flags_0(k,j,nxr), 1 )&
1676	)
1677
1678	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
1679	* MERGE( 1.0_wp, 0.0_wp, &
1680	BTEST( wall_flags_0(k,j,nxr), 1 )&
1681	)
1682	ENDDO
1683	ENDDO
1684	ENDIF
1685
1686	IF ( nyn == ny ) THEN
1687	DO i = nxl, nxr
1688	DO k = nzb+1, nzt
1689	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1690	v_init(k) * dzw(k) &
1691	* MERGE( 1.0_wp, 0.0_wp, &
1692	BTEST( wall_flags_0(k,nyn,i), 2 )&
1693	)
1694	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
1695	* MERGE( 1.0_wp, 0.0_wp, &
1696	BTEST( wall_flags_0(k,nyn,i), 2 )&
1697	)
1698	ENDDO
1699	ENDDO
1700	ENDIF
1701
1702	#if defined( __parallel )
1703	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1704	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1705	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1706	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1707
1708	#else
1709	volume_flow_initial = volume_flow_initial_l
1710	volume_flow_area = volume_flow_area_l
1711	#endif
1712
1713	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1714
1715	volume_flow_initial_l = 0.0_wp
1716	volume_flow_area_l = 0.0_wp
1717
1718	IF ( nxr == nx ) THEN
1719	DO j = nys, nyn
1720	DO k = nzb+1, nzt
1721	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1722	hom_sum(k,1,0) * dzw(k) &
1723	* MERGE( 1.0_wp, 0.0_wp, &
1724	BTEST( wall_flags_0(k,j,nx), 1 ) &
1725	)
1726	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
1727	* MERGE( 1.0_wp, 0.0_wp, &
1728	BTEST( wall_flags_0(k,j,nx), 1 ) &
1729	)
1730	ENDDO
1731	ENDDO
1732	ENDIF
1733
1734	IF ( nyn == ny ) THEN
1735	DO i = nxl, nxr
1736	DO k = nzb+1, nzt
1737	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1738	hom_sum(k,2,0) * dzw(k) &
1739	* MERGE( 1.0_wp, 0.0_wp, &
1740	BTEST( wall_flags_0(k,ny,i), 2 ) &
1741	)
1742	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
1743	* MERGE( 1.0_wp, 0.0_wp, &
1744	BTEST( wall_flags_0(k,ny,i), 2 ) &
1745	)
1746	ENDDO
1747	ENDDO
1748	ENDIF
1749
1750	#if defined( __parallel )
1751	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1752	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1753	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1754	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1755
1756	#else
1757	volume_flow_initial = volume_flow_initial_l
1758	volume_flow_area = volume_flow_area_l
1759	#endif
1760
1761	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1762
1763	volume_flow_initial_l = 0.0_wp
1764	volume_flow_area_l = 0.0_wp
1765
1766	IF ( nxr == nx ) THEN
1767	DO j = nys, nyn
1768	DO k = nzb+1, nzt
1769	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1770	u(k,j,nx) * dzw(k) &
1771	* MERGE( 1.0_wp, 0.0_wp, &
1772	BTEST( wall_flags_0(k,j,nx), 1 ) &
1773	)
1774	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
1775	* MERGE( 1.0_wp, 0.0_wp, &
1776	BTEST( wall_flags_0(k,j,nx), 1 ) &
1777	)
1778	ENDDO
1779	ENDDO
1780	ENDIF
1781
1782	IF ( nyn == ny ) THEN
1783	DO i = nxl, nxr
1784	DO k = nzb+1, nzt
1785	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1786	v(k,ny,i) * dzw(k) &
1787	* MERGE( 1.0_wp, 0.0_wp, &
1788	BTEST( wall_flags_0(k,ny,i), 2 ) &
1789	)
1790	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
1791	* MERGE( 1.0_wp, 0.0_wp, &
1792	BTEST( wall_flags_0(k,ny,i), 2 ) &
1793	)
1794	ENDDO
1795	ENDDO
1796	ENDIF
1797
1798	#if defined( __parallel )
1799	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1800	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1801	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1802	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1803
1804	#else
1805	volume_flow_initial = volume_flow_initial_l
1806	volume_flow_area = volume_flow_area_l
1807	#endif
1808
1809	ENDIF
1810
1811	!
1812	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
1813	!-- from u\|v_bulk instead
1814	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
1815	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
1816	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
1817	ENDIF
1818
1819	ENDIF
1820	!
1821	!-- Initialize surface elements and its attributes, e.g. heat- and
1822	!-- momentumfluxes, roughness, scaling parameters.
1823	!-- This is already done in case of restart data.
1824	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1825	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1826	CALL init_surfaces
1827	!
1828	!-- Finally, if random_heatflux is set, disturb shf at horizontal
1829	!-- surfaces. Actually, this should be done in surface_mod, where all other
1830	!-- initializations of surface quantities are done. However, this
1831	!-- would create a ring dependency, hence, it is done here. Maybe delete
1832	!-- disturb_heatflux and tranfer the respective code directly into the
1833	!-- initialization in surface_mod.
1834	IF ( use_surface_fluxes .AND. constant_heatflux .AND. &
1835	random_heatflux ) THEN
1836	IF ( surf_def_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_def_h(0) )
1837	IF ( surf_lsm_h%ns >= 1 ) CALL disturb_heatflux( surf_lsm_h )
1838	IF ( surf_usm_h%ns >= 1 ) CALL disturb_heatflux( surf_usm_h )
1839	ENDIF
1840	ENDIF
1841
1842	!
1843	!-- Initialize surface forcing corresponding to large-scale forcing. Therein,
1844	!-- initialize heat-fluxes, etc. via datatype. Revise it later!
1845	IF ( large_scale_forcing .AND. lsf_surf ) THEN
1846	IF ( use_surface_fluxes .AND. constant_heatflux ) THEN
1847	CALL ls_forcing_surf ( simulated_time )
1848	ENDIF
1849	ENDIF
1850	!
1851	!-- Initialize quantities for special advections schemes
1852	CALL init_advec
1853
1854	!
1855	!-- Impose random perturbation on the horizontal velocity field and then
1856	!-- remove the divergences from the velocity field at the initial stage
1857	IF ( create_disturbances .AND. disturbance_energy_limit /= 0.0_wp .AND. &
1858	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1859	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1860
1861	CALL location_message( 'creating initial disturbances', .FALSE. )
1862	CALL disturb_field( 'u', tend, u )
1863	CALL disturb_field( 'v', tend, v )
1864	CALL location_message( 'finished', .TRUE. )
1865
1866	CALL location_message( 'calling pressure solver', .FALSE. )
1867	n_sor = nsor_ini
1868	CALL pres
1869	n_sor = nsor
1870	CALL location_message( 'finished', .TRUE. )
1871
1872	ENDIF
1873
1874	!
1875	!-- If required, initialize quantities needed for the plant canopy model
1876	IF ( plant_canopy ) THEN
1877	CALL location_message( 'initializing plant canopy model', .FALSE. )
1878	CALL pcm_init
1879	CALL location_message( 'finished', .TRUE. )
1880	ENDIF
1881
1882	!
1883	!-- If required, initialize dvrp-software
1884	IF ( dt_dvrp /= 9999999.9_wp ) CALL init_dvrp
1885
1886	IF ( ocean ) THEN
1887	!
1888	!-- Initialize quantities needed for the ocean model
1889	CALL init_ocean
1890
1891	ELSE
1892	!
1893	!-- Initialize quantities for handling cloud physics
1894	!-- This routine must be called before lpm_init, because
1895	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
1896	!-- lpm_init) is not defined.
1897	CALL init_cloud_physics
1898	!
1899	!-- Initialize bulk cloud microphysics
1900	CALL microphysics_init
1901	ENDIF
1902
1903	!
1904	!-- If required, initialize particles
1905	IF ( particle_advection ) CALL lpm_init
1906
1907	!
1908	!-- If required, initialize quantities needed for the LSM
1909	IF ( land_surface ) THEN
1910	CALL location_message( 'initializing land surface model', .FALSE. )
1911	CALL lsm_init
1912	CALL location_message( 'finished', .TRUE. )
1913	ENDIF
1914
1915	!
1916	!-- Initialize surface layer (done after LSM as roughness length are required
1917	!-- for initialization
1918	IF ( constant_flux_layer ) THEN
1919	CALL location_message( 'initializing surface layer', .FALSE. )
1920	CALL init_surface_layer_fluxes
1921	CALL location_message( 'finished', .TRUE. )
1922	ENDIF
1923
1924	!
1925	!-- If required, initialize radiation model
1926	IF ( radiation ) THEN
1927	CALL location_message( 'initializing radiation model', .FALSE. )
1928	CALL radiation_init
1929	CALL location_message( 'finished', .TRUE. )
1930	ENDIF
1931
1932
1933	!
1934	!-- Temporary solution to add LSM and radiation time series to the default
1935	!-- output
1936	IF ( land_surface .OR. radiation ) THEN
1937	IF ( TRIM( radiation_scheme ) == 'rrtmg' ) THEN
1938	dots_num = dots_num + 15
1939	ELSE
1940	dots_num = dots_num + 11
1941	ENDIF
1942	ENDIF
1943
1944	!
1945	!-- If required, initialize urban surface model
1946	IF ( urban_surface ) THEN
1947	CALL location_message( 'initializing urban surface model', .FALSE. )
1948	CALL usm_init_urban_surface
1949	CALL location_message( 'finished', .TRUE. )
1950	ENDIF
1951
1952	!
1953	!-- If required, initialize quantities needed for the wind turbine model
1954	IF ( wind_turbine ) THEN
1955	CALL location_message( 'initializing wind turbine model', .FALSE. )
1956	CALL wtm_init
1957	CALL location_message( 'finished', .TRUE. )
1958	ENDIF
1959
1960
1961	!
1962	!-- Initialize the ws-scheme.
1963	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
1964
1965	!
1966	!-- Setting weighting factors for calculation of perturbation pressure
1967	!-- and turbulent quantities from the RK substeps
1968	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
1969
1970	weight_substep(1) = 1._wp/6._wp
1971	weight_substep(2) = 3._wp/10._wp
1972	weight_substep(3) = 8._wp/15._wp
1973
1974	weight_pres(1) = 1._wp/3._wp
1975	weight_pres(2) = 5._wp/12._wp
1976	weight_pres(3) = 1._wp/4._wp
1977
1978	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
1979
1980	weight_substep(1) = 1._wp/2._wp
1981	weight_substep(2) = 1._wp/2._wp
1982
1983	weight_pres(1) = 1._wp/2._wp
1984	weight_pres(2) = 1._wp/2._wp
1985
1986	ELSE ! for Euler-method
1987
1988	weight_substep(1) = 1.0_wp
1989	weight_pres(1) = 1.0_wp
1990
1991	ENDIF
1992
1993	!
1994	!-- Initialize Rayleigh damping factors
1995	rdf = 0.0_wp
1996	rdf_sc = 0.0_wp
1997	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
1998	IF ( .NOT. ocean ) THEN
1999	DO k = nzb+1, nzt
2000	IF ( zu(k) >= rayleigh_damping_height ) THEN
2001	rdf(k) = rayleigh_damping_factor * &
2002	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
2003	/ ( zu(nzt) - rayleigh_damping_height ) ) &
2004	)**2
2005	ENDIF
2006	ENDDO
2007	ELSE
2008	DO k = nzt, nzb+1, -1
2009	IF ( zu(k) <= rayleigh_damping_height ) THEN
2010	rdf(k) = rayleigh_damping_factor * &
2011	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
2012	/ ( rayleigh_damping_height - zu(nzb+1) ) ) &
2013	)**2
2014	ENDIF
2015	ENDDO
2016	ENDIF
2017	ENDIF
2018	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
2019
2020	!
2021	!-- Initialize the starting level and the vertical smoothing factor used for
2022	!-- the external pressure gradient
2023	dp_smooth_factor = 1.0_wp
2024	IF ( dp_external ) THEN
2025	!
2026	!-- Set the starting level dp_level_ind_b only if it has not been set before
2027	!-- (e.g. in init_grid).
2028	IF ( dp_level_ind_b == 0 ) THEN
2029	ind_array = MINLOC( ABS( dp_level_b - zu ) )
2030	dp_level_ind_b = ind_array(1) - 1 + nzb
2031	! MINLOC uses lower array bound 1
2032	ENDIF
2033	IF ( dp_smooth ) THEN
2034	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
2035	DO k = dp_level_ind_b+1, nzt
2036	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
2037	( REAL( k - dp_level_ind_b, KIND=wp ) / &
2038	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
2039	ENDDO
2040	ENDIF
2041	ENDIF
2042
2043	!
2044	!-- Initialize damping zone for the potential temperature in case of
2045	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
2046	!-- at the inflow boundary and decreases to zero at pt_damping_width.
2047	ptdf_x = 0.0_wp
2048	ptdf_y = 0.0_wp
2049	IF ( bc_lr_dirrad ) THEN
2050	DO i = nxl, nxr
2051	IF ( ( i * dx ) < pt_damping_width ) THEN
2052	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
2053	REAL( pt_damping_width - i * dx, KIND=wp ) / ( &
2054	REAL( pt_damping_width, KIND=wp ) ) ) )**2
2055	ENDIF
2056	ENDDO
2057	ELSEIF ( bc_lr_raddir ) THEN
2058	DO i = nxl, nxr
2059	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
2060	ptdf_x(i) = pt_damping_factor * &
2061	SIN( pi * 0.5_wp * &
2062	( ( i - nx ) * dx + pt_damping_width ) / &
2063	REAL( pt_damping_width, KIND=wp ) )**2
2064	ENDIF
2065	ENDDO
2066	ELSEIF ( bc_ns_dirrad ) THEN
2067	DO j = nys, nyn
2068	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
2069	ptdf_y(j) = pt_damping_factor * &
2070	SIN( pi * 0.5_wp * &
2071	( ( j - ny ) * dy + pt_damping_width ) / &
2072	REAL( pt_damping_width, KIND=wp ) )**2
2073	ENDIF
2074	ENDDO
2075	ELSEIF ( bc_ns_raddir ) THEN
2076	DO j = nys, nyn
2077	IF ( ( j * dy ) < pt_damping_width ) THEN
2078	ptdf_y(j) = pt_damping_factor * &
2079	SIN( pi * 0.5_wp * &
2080	( pt_damping_width - j * dy ) / &
2081	REAL( pt_damping_width, KIND=wp ) )**2
2082	ENDIF
2083	ENDDO
2084	ENDIF
2085
2086	!
2087	!-- Pre-set masks for regional statistics. Default is the total model domain.
2088	!-- Ghost points are excluded because counting values at the ghost boundaries
2089	!-- would bias the statistics
2090	rmask = 1.0_wp
2091	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
2092	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
2093
2094	!
2095	!-- User-defined initializing actions. Check afterwards, if maximum number
2096	!-- of allowed timeseries is exceeded
2097	CALL user_init
2098
2099	IF ( dots_num > dots_max ) THEN
2100	WRITE( message_string, * ) 'number of time series quantities exceeds', &
2101	' its maximum of dots_max = ', dots_max, &
2102	' &Please increase dots_max in modules.f90.'
2103	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
2104	ENDIF
2105
2106	!
2107	!-- Input binary data file is not needed anymore. This line must be placed
2108	!-- after call of user_init!
2109	CALL close_file( 13 )
2110
2111	!
2112	!-- Compute total sum of active mask grid points
2113	!-- and the mean surface level height for each statistic region
2114	!-- ngp_2dh: number of grid points of a horizontal cross section through the
2115	!-- total domain
2116	!-- ngp_3d: number of grid points of the total domain
2117	ngp_2dh_outer_l = 0
2118	ngp_2dh_outer = 0
2119	ngp_2dh_s_inner_l = 0
2120	ngp_2dh_s_inner = 0
2121	ngp_2dh_l = 0
2122	ngp_2dh = 0
2123	ngp_3d_inner_l = 0.0_wp
2124	ngp_3d_inner = 0
2125	ngp_3d = 0
2126	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
2127
2128	mean_surface_level_height = 0.0_wp
2129	mean_surface_level_height_l = 0.0_wp
2130
2131	!
2132	!-- To do: New concept for these non-topography grid points!
2133	DO sr = 0, statistic_regions
2134	DO i = nxl, nxr
2135	DO j = nys, nyn
2136	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
2137	!
2138	!-- All xy-grid points
2139	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
2140	!
2141	!-- Determine mean surface-level height. In case of downward-
2142	!-- facing walls are present, more than one surface level exist.
2143	!-- In this case, use the lowest surface-level height.
2144	IF ( surf_def_h(0)%start_index(j,i) <= &
2145	surf_def_h(0)%end_index(j,i) ) THEN
2146	m = surf_def_h(0)%start_index(j,i)
2147	k = surf_def_h(0)%k(m)
2148	mean_surface_level_height_l(sr) = &
2149	mean_surface_level_height_l(sr) + zw(k-1)
2150	ENDIF
2151	IF ( surf_lsm_h%start_index(j,i) <= &
2152	surf_lsm_h%end_index(j,i) ) THEN
2153	m = surf_lsm_h%start_index(j,i)
2154	k = surf_lsm_h%k(m)
2155	mean_surface_level_height_l(sr) = &
2156	mean_surface_level_height_l(sr) + zw(k-1)
2157	ENDIF
2158	IF ( surf_usm_h%start_index(j,i) <= &
2159	surf_usm_h%end_index(j,i) ) THEN
2160	m = surf_usm_h%start_index(j,i)
2161	k = surf_usm_h%k(m)
2162	mean_surface_level_height_l(sr) = &
2163	mean_surface_level_height_l(sr) + zw(k-1)
2164	ENDIF
2165
2166	k_surf = k - 1
2167
2168	DO k = nzb, nzt+1
2169	!
2170	!-- xy-grid points above topography
2171	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + &
2172	MERGE( 1, 0, BTEST( wall_flags_0(k,j,i), 24 ) )
2173
2174	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + &
2175	MERGE( 1, 0, BTEST( wall_flags_0(k,j,i), 22 ) )
2176
2177	ENDDO
2178	!
2179	!-- All grid points of the total domain above topography
2180	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + ( nz - k_surf + 2 )
2181
2182
2183
2184	ENDIF
2185	ENDDO
2186	ENDDO
2187	ENDDO
2188
2189	sr = statistic_regions + 1
2190	#if defined( __parallel )
2191	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2192	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
2193	comm2d, ierr )
2194	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2195	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
2196	MPI_INTEGER, MPI_SUM, comm2d, ierr )
2197	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2198	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
2199	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
2200	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2201	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
2202	MPI_SUM, comm2d, ierr )
2203	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
2204	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2205	CALL MPI_ALLREDUCE( mean_surface_level_height_l(0), &
2206	mean_surface_level_height(0), sr, MPI_REAL, &
2207	MPI_SUM, comm2d, ierr )
2208	mean_surface_level_height = mean_surface_level_height / REAL( ngp_2dh )
2209	#else
2210	ngp_2dh = ngp_2dh_l
2211	ngp_2dh_outer = ngp_2dh_outer_l
2212	ngp_2dh_s_inner = ngp_2dh_s_inner_l
2213	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
2214	mean_surface_level_height = mean_surface_level_height_l / REAL( ngp_2dh_l )
2215	#endif
2216
2217	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
2218	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
2219
2220	!
2221	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
2222	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
2223	!-- the respective subdomain lie below the surface topography
2224	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
2225	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
2226	ngp_3d_inner(:) )
2227	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
2228
2229	DEALLOCATE( mean_surface_level_height_l, ngp_2dh_l, ngp_2dh_outer_l, &
2230	ngp_3d_inner_l, ngp_3d_inner_tmp )
2231
2232	CALL location_message( 'leaving init_3d_model', .TRUE. )
2233
2234	END SUBROUTINE init_3d_model

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