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source: palm/trunk/SOURCE/init_3d_model.f90 @ 2037

Last change on this file since 2037 was 2037, checked in by knoop, 8 years ago

Anelastic approximation implemented

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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 1997-2016 Leibniz Universitaet Hannover
18	!------------------------------------------------------------------------------!
19	!
20	! Current revisions:
21	! ------------------
22	! Anelastic approximation implemented
23	!
24	! Former revisions:
25	! -----------------
26	! $Id: init_3d_model.f90 2037 2016-10-26 11:15:40Z knoop $
27	!
28	! 2031 2016-10-21 15:11:58Z knoop
29	! renamed variable rho to rho_ocean
30	!
31	! 2011 2016-09-19 17:29:57Z kanani
32	! Flag urban_surface is now defined in module control_parameters.
33	!
34	! 2007 2016-08-24 15:47:17Z kanani
35	! Added support for urban surface model,
36	! adjusted location_message in case of plant_canopy
37	!
38	! 2000 2016-08-20 18:09:15Z knoop
39	! Forced header and separation lines into 80 columns
40	!
41	! 1992 2016-08-12 15:14:59Z suehring
42	! Initializaton of scalarflux at model top
43	! Bugfixes in initialization of surface and top salinity flux, top scalar and
44	! humidity fluxes
45	!
46	! 1960 2016-07-12 16:34:24Z suehring
47	! Separate humidity and passive scalar
48	! Increase dimension for mean_inflow_profiles
49	! Remove inadvertent write-statement
50	! Bugfix, large-scale forcing is still not implemented for passive scalars
51	!
52	! 1957 2016-07-07 10:43:48Z suehring
53	! flight module added
54	!
55	! 1920 2016-05-30 10:50:15Z suehring
56	! Initialize us with very small number to avoid segmentation fault during
57	! calculation of Obukhov length
58	!
59	! 1918 2016-05-27 14:35:57Z raasch
60	! intermediate_timestep_count is set 0 instead 1 for first call of pres,
61	! bugfix: initialization of local sum arrays are moved to the beginning of the
62	! routine because otherwise results from pres are overwritten
63	!
64	! 1914 2016-05-26 14:44:07Z witha
65	! Added initialization of the wind turbine model
66	!
67	! 1878 2016-04-19 12:30:36Z hellstea
68	! The zeroth element of weight_pres removed as unnecessary
69	!
70	! 1849 2016-04-08 11:33:18Z hoffmann
71	! Adapted for modularization of microphysics.
72	! precipitation_amount, precipitation_rate, prr moved to arrays_3d.
73	! Initialization of nc_1d, nr_1d, pt_1d, qc_1d, qr_1d, q_1d moved to
74	! microphysics_init.
75	!
76	! 1845 2016-04-08 08:29:13Z raasch
77	! nzb_2d replaced by nzb_u\|v_inner
78	!
79	! 1833 2016-04-07 14:23:03Z raasch
80	! initialization of spectra quantities moved to spectra_mod
81	!
82	! 1831 2016-04-07 13:15:51Z hoffmann
83	! turbulence renamed collision_turbulence
84	!
85	! 1826 2016-04-07 12:01:39Z maronga
86	! Renamed radiation calls.
87	! Renamed canopy model calls.
88	!
89	! 1822 2016-04-07 07:49:42Z hoffmann
90	! icloud_scheme replaced by microphysics_*
91	!
92	! 1817 2016-04-06 15:44:20Z maronga
93	! Renamed lsm calls.
94	!
95	! 1815 2016-04-06 13:49:59Z raasch
96	! zero-settings for velocities inside topography re-activated (was deactivated
97	! in r1762)
98	!
99	! 1788 2016-03-10 11:01:04Z maronga
100	! Added z0q.
101	! Syntax layout improved.
102	!
103	! 1783 2016-03-06 18:36:17Z raasch
104	! netcdf module name changed + related changes
105	!
106	! 1764 2016-02-28 12:45:19Z raasch
107	! bugfix: increase size of volume_flow_area_l and volume_flow_initial_l by 1
108	!
109	! 1762 2016-02-25 12:31:13Z hellstea
110	! Introduction of nested domain feature
111	!
112	! 1738 2015-12-18 13:56:05Z raasch
113	! calculate mean surface level height for each statistic region
114	!
115	! 1734 2015-12-02 12:17:12Z raasch
116	! no initial disturbances in case that the disturbance energy limit has been
117	! set zero
118	!
119	! 1707 2015-11-02 15:24:52Z maronga
120	! Bugfix: transfer of Richardson number from 1D model to Obukhov length caused
121	! devision by zero in neutral stratification
122	!
123	! 1691 2015-10-26 16:17:44Z maronga
124	! Call to init_surface_layer added. rif is replaced by ol and zeta.
125	!
126	! 1682 2015-10-07 23:56:08Z knoop
127	! Code annotations made doxygen readable
128	!
129	! 1615 2015-07-08 18:49:19Z suehring
130	! Enable turbulent inflow for passive_scalar and humidity
131	!
132	! 1585 2015-04-30 07:05:52Z maronga
133	! Initialization of radiation code is now done after LSM initializtion
134	!
135	! 1575 2015-03-27 09:56:27Z raasch
136	! adjustments for psolver-queries
137	!
138	! 1551 2015-03-03 14:18:16Z maronga
139	! Allocation of land surface arrays is now done in the subroutine lsm_init_arrays,
140	! which is part of land_surface_model.
141	!
142	! 1507 2014-12-10 12:14:18Z suehring
143	! Bugfix: set horizontal velocity components to zero inside topography
144	!
145	! 1496 2014-12-02 17:25:50Z maronga
146	! Added initialization of the land surface and radiation schemes
147	!
148	! 1484 2014-10-21 10:53:05Z kanani
149	! Changes due to new module structure of the plant canopy model:
150	! canopy-related initialization (e.g. lad and canopy_heat_flux) moved to new
151	! subroutine init_plant_canopy within the module plant_canopy_model_mod,
152	! call of subroutine init_plant_canopy added.
153	!
154	! 1431 2014-07-15 14:47:17Z suehring
155	! var_d added, in order to normalize spectra.
156	!
157	! 1429 2014-07-15 12:53:45Z knoop
158	! Ensemble run capability added to parallel random number generator
159	!
160	! 1411 2014-05-16 18:01:51Z suehring
161	! Initial horizontal velocity profiles were not set to zero at the first vertical
162	! grid level in case of non-cyclic lateral boundary conditions.
163	!
164	! 1406 2014-05-16 13:47:01Z raasch
165	! bugfix: setting of initial velocities at k=1 to zero not in case of a
166	! no-slip boundary condition for uv
167	!
168	! 1402 2014-05-09 14:25:13Z raasch
169	! location messages modified
170	!
171	! 1400 2014-05-09 14:03:54Z knoop
172	! Parallel random number generator added
173	!
174	! 1384 2014-05-02 14:31:06Z raasch
175	! location messages added
176	!
177	! 1361 2014-04-16 15:17:48Z hoffmann
178	! tend_* removed
179	! Bugfix: w_subs is not allocated anymore if it is already allocated
180	!
181	! 1359 2014-04-11 17:15:14Z hoffmann
182	! module lpm_init_mod added to use statements, because lpm_init has become a
183	! module
184	!
185	! 1353 2014-04-08 15:21:23Z heinze
186	! REAL constants provided with KIND-attribute
187	!
188	! 1340 2014-03-25 19:45:13Z kanani
189	! REAL constants defined as wp-kind
190	!
191	! 1322 2014-03-20 16:38:49Z raasch
192	! REAL constants defined as wp-kind
193	! module interfaces removed
194	!
195	! 1320 2014-03-20 08:40:49Z raasch
196	! ONLY-attribute added to USE-statements,
197	! kind-parameters added to all INTEGER and REAL declaration statements,
198	! kinds are defined in new module kinds,
199	! revision history before 2012 removed,
200	! comment fields (!:) to be used for variable explanations added to
201	! all variable declaration statements
202	!
203	! 1316 2014-03-17 07:44:59Z heinze
204	! Bugfix: allocation of w_subs
205	!
206	! 1299 2014-03-06 13:15:21Z heinze
207	! Allocate w_subs due to extension of large scale subsidence in combination
208	! with large scale forcing data (LSF_DATA)
209	!
210	! 1241 2013-10-30 11:36:58Z heinze
211	! Overwrite initial profiles in case of nudging
212	! Inititialize shf and qsws in case of large_scale_forcing
213	!
214	! 1221 2013-09-10 08:59:13Z raasch
215	! +rflags_s_inner in copyin statement, use copyin for most arrays instead of
216	! copy
217	!
218	! 1212 2013-08-15 08:46:27Z raasch
219	! array tri is allocated and included in data copy statement
220	!
221	! 1195 2013-07-01 12:27:57Z heinze
222	! Bugfix: move allocation of ref_state to parin.f90 and read_var_list.f90
223	!
224	! 1179 2013-06-14 05:57:58Z raasch
225	! allocate and set ref_state to be used in buoyancy terms
226	!
227	! 1171 2013-05-30 11:27:45Z raasch
228	! diss array is allocated with full size if accelerator boards are used
229	!
230	! 1159 2013-05-21 11:58:22Z fricke
231	! -bc_lr_dirneu, bc_lr_neudir, bc_ns_dirneu, bc_ns_neudir
232	!
233	! 1153 2013-05-10 14:33:08Z raasch
234	! diss array is allocated with dummy elements even if it is not needed
235	! (required by PGI 13.4 / CUDA 5.0)
236	!
237	! 1115 2013-03-26 18:16:16Z hoffmann
238	! unused variables removed
239	!
240	! 1113 2013-03-10 02:48:14Z raasch
241	! openACC directive modified
242	!
243	! 1111 2013-03-08 23:54:10Z raasch
244	! openACC directives added for pres
245	! array diss allocated only if required
246	!
247	! 1092 2013-02-02 11:24:22Z raasch
248	! unused variables removed
249	!
250	! 1065 2012-11-22 17:42:36Z hoffmann
251	! allocation of diss (dissipation rate) in case of turbulence = .TRUE. added
252	!
253	! 1053 2012-11-13 17:11:03Z hoffmann
254	! allocation and initialisation of necessary data arrays for the two-moment
255	! cloud physics scheme the two new prognostic equations (nr, qr):
256	! +dr, lambda_r, mu_r, sed_, xr, s, sws, swst, , _p, t_m, _1, _2, _3,
257	! +tend_*, prr
258	!
259	! 1036 2012-10-22 13:43:42Z raasch
260	! code put under GPL (PALM 3.9)
261	!
262	! 1032 2012-10-21 13:03:21Z letzel
263	! save memory by not allocating pt_2 in case of neutral = .T.
264	!
265	! 1025 2012-10-07 16:04:41Z letzel
266	! bugfix: swap indices of mask for ghost boundaries
267	!
268	! 1015 2012-09-27 09:23:24Z raasch
269	! mask is set to zero for ghost boundaries
270	!
271	! 1010 2012-09-20 07:59:54Z raasch
272	! cpp switch __nopointer added for pointer free version
273	!
274	! 1003 2012-09-14 14:35:53Z raasch
275	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
276	!
277	! 1001 2012-09-13 14:08:46Z raasch
278	! all actions concerning leapfrog scheme removed
279	!
280	! 996 2012-09-07 10:41:47Z raasch
281	! little reformatting
282	!
283	! 978 2012-08-09 08:28:32Z fricke
284	! outflow damping layer removed
285	! roughness length for scalar quantites z0h added
286	! damping zone for the potential temperatur in case of non-cyclic lateral
287	! boundaries added
288	! initialization of ptdf_x, ptdf_y
289	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
290	!
291	! 849 2012-03-15 10:35:09Z raasch
292	! init_particles renamed lpm_init
293	!
294	! 825 2012-02-19 03:03:44Z raasch
295	! wang_collision_kernel renamed wang_kernel
296	!
297	! Revision 1.1 1998/03/09 16:22:22 raasch
298	! Initial revision
299	!
300	!
301	! Description:
302	! ------------
303	!> Allocation of arrays and initialization of the 3D model via
304	!> a) pre-run the 1D model
305	!> or
306	!> b) pre-set constant linear profiles
307	!> or
308	!> c) read values of a previous run
309	!------------------------------------------------------------------------------!
310	SUBROUTINE init_3d_model
311
312
313	USE advec_ws
314
315	USE arrays_3d
316
317	USE cloud_parameters, &
318	ONLY: cp, l_v, r_d
319
320	USE constants, &
321	ONLY: pi
322
323	USE control_parameters
324
325	USE flight_mod, &
326	ONLY: flight_init
327
328	USE grid_variables, &
329	ONLY: dx, dy, ddx2_mg, ddy2_mg
330
331	USE indices
332
333	USE lpm_init_mod, &
334	ONLY: lpm_init
335
336	USE kinds
337
338	USE land_surface_model_mod, &
339	ONLY: lsm_init, lsm_init_arrays, land_surface
340
341	USE ls_forcing_mod
342
343	USE microphysics_mod, &
344	ONLY: collision_turbulence, microphysics_init
345
346	USE model_1d, &
347	ONLY: e1d, kh1d, km1d, l1d, rif1d, u1d, us1d, usws1d, v1d, vsws1d
348
349	USE netcdf_interface, &
350	ONLY: dots_max, dots_num
351
352	USE particle_attributes, &
353	ONLY: particle_advection, use_sgs_for_particles, wang_kernel
354
355	USE pegrid
356
357	USE plant_canopy_model_mod, &
358	ONLY: pcm_init, plant_canopy
359
360	USE radiation_model_mod, &
361	ONLY: radiation_init, radiation
362
363	USE random_function_mod
364
365	USE random_generator_parallel, &
366	ONLY: random_number_parallel, random_seed_parallel, random_dummy, &
367	id_random_array, seq_random_array
368
369	USE statistics, &
370	ONLY: hom, hom_sum, mean_surface_level_height, pr_palm, rmask, &
371	statistic_regions, sums, sums_divnew_l, sums_divold_l, sums_l, &
372	sums_l_l, sums_up_fraction_l, sums_wsts_bc_l, ts_value, &
373	weight_pres, weight_substep
374
375	USE surface_layer_fluxes_mod, &
376	ONLY: init_surface_layer_fluxes
377
378	USE transpose_indices
379
380	USE urban_surface_mod, &
381	ONLY: usm_init_urban_surface
382
383	USE wind_turbine_model_mod, &
384	ONLY: wtm_init, wtm_init_arrays, wind_turbine
385
386	IMPLICIT NONE
387
388	INTEGER(iwp) :: i !<
389	INTEGER(iwp) :: ind_array(1) !<
390	INTEGER(iwp) :: j !<
391	INTEGER(iwp) :: k !<
392	INTEGER(iwp) :: sr !<
393
394	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !<
395
396	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !<
397	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !<
398
399	REAL(wp) :: t_surface !< air temperature at the surface
400
401	REAL(wp), DIMENSION(:), ALLOCATABLE :: p_hydrostatic !< hydrostatic pressure
402
403	INTEGER(iwp) :: l !< loop variable
404	INTEGER(iwp) :: nzt_l !< index of top PE boundary for multigrid level
405	REAL(wp) :: dx_l !< grid spacing along x on different multigrid level
406	REAL(wp) :: dy_l !< grid spacing along y on different multigrid level
407
408	REAL(wp), DIMENSION(1:3) :: volume_flow_area_l !<
409	REAL(wp), DIMENSION(1:3) :: volume_flow_initial_l !<
410
411	REAL(wp), DIMENSION(:), ALLOCATABLE :: mean_surface_level_height_l !<
412	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !<
413	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !<
414
415
416	CALL location_message( 'allocating arrays', .FALSE. )
417	!
418	!-- Allocate arrays
419	ALLOCATE( mean_surface_level_height(0:statistic_regions), &
420	mean_surface_level_height_l(0:statistic_regions), &
421	ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
422	ngp_3d(0:statistic_regions), &
423	ngp_3d_inner(0:statistic_regions), &
424	ngp_3d_inner_l(0:statistic_regions), &
425	ngp_3d_inner_tmp(0:statistic_regions), &
426	sums_divnew_l(0:statistic_regions), &
427	sums_divold_l(0:statistic_regions) )
428	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
429	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
430	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
431	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
432	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
433	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
434	sums(nzb:nzt+1,pr_palm+max_pr_user), &
435	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
436	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
437	sums_up_fraction_l(10,3,0:statistic_regions), &
438	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
439	ts_value(dots_max,0:statistic_regions) )
440	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
441
442	ALLOCATE( ol(nysg:nyng,nxlg:nxrg), shf(nysg:nyng,nxlg:nxrg), &
443	ts(nysg:nyng,nxlg:nxrg), tswst(nysg:nyng,nxlg:nxrg), &
444	us(nysg:nyng,nxlg:nxrg), usws(nysg:nyng,nxlg:nxrg), &
445	uswst(nysg:nyng,nxlg:nxrg), vsws(nysg:nyng,nxlg:nxrg), &
446	vswst(nysg:nyng,nxlg:nxrg), z0(nysg:nyng,nxlg:nxrg), &
447	z0h(nysg:nyng,nxlg:nxrg), z0q(nysg:nyng,nxlg:nxrg) )
448
449	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
450	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
451	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
452	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
453	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
454
455	#if defined( __nopointer )
456	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
457	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
458	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
459	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
460	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
461	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
462	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
463	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
464	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
465	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
466	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
467	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
468	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
469	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
470	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
471	#else
472	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
473	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
474	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
475	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
476	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
477	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
478	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
479	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
480	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
481	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
482	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
483	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
484	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
485	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
486	IF ( .NOT. neutral ) THEN
487	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
488	ENDIF
489	#endif
490
491	!
492	!-- Following array is required for perturbation pressure within the iterative
493	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
494	!-- the weighted average of the substeps and cannot be used in the Poisson
495	!-- solver.
496	IF ( psolver == 'sor' ) THEN
497	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
498	ELSEIF ( psolver(1:9) == 'multigrid' ) THEN
499	!
500	!-- For performance reasons, multigrid is using one ghost layer only
501	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
502	ENDIF
503
504	!
505	!-- Array for storing constant coeffficients of the tridiagonal solver
506	IF ( psolver == 'poisfft' ) THEN
507	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
508	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
509	ENDIF
510
511	IF ( humidity ) THEN
512	!
513	!-- 2D-humidity
514	ALLOCATE ( qs(nysg:nyng,nxlg:nxrg), &
515	qsws(nysg:nyng,nxlg:nxrg), &
516	qswst(nysg:nyng,nxlg:nxrg) )
517
518	!
519	!-- 3D-humidity
520	#if defined( __nopointer )
521	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
522	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
523	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
524	#else
525	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
526	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
527	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
528	#endif
529
530	!
531	!-- 3D-arrays needed for humidity
532	IF ( humidity ) THEN
533	#if defined( __nopointer )
534	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
535	#else
536	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
537	#endif
538
539	IF ( cloud_physics ) THEN
540
541	!
542	!-- Liquid water content
543	#if defined( __nopointer )
544	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
545	#else
546	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
547	#endif
548	!
549	!-- Precipitation amount and rate (only needed if output is switched)
550	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
551	precipitation_rate(nysg:nyng,nxlg:nxrg) )
552
553	!
554	!-- 3D-cloud water content
555	#if defined( __nopointer )
556	ALLOCATE( qc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
557	#else
558	ALLOCATE( qc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
559	#endif
560	!
561	!-- 3d-precipitation rate
562	ALLOCATE( prr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
563
564	IF ( microphysics_seifert ) THEN
565	!
566	!-- 2D-rain water content and rain drop concentration arrays
567	ALLOCATE ( qrs(nysg:nyng,nxlg:nxrg), &
568	qrsws(nysg:nyng,nxlg:nxrg), &
569	qrswst(nysg:nyng,nxlg:nxrg), &
570	nrs(nysg:nyng,nxlg:nxrg), &
571	nrsws(nysg:nyng,nxlg:nxrg), &
572	nrswst(nysg:nyng,nxlg:nxrg) )
573	!
574	!-- 3D-rain water content, rain drop concentration arrays
575	#if defined( __nopointer )
576	ALLOCATE( nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
577	nr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
578	qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
579	qr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
580	tnr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
581	tqr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
582	#else
583	ALLOCATE( nr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
584	nr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
585	nr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
586	qr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
587	qr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
588	qr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
589	#endif
590	ENDIF
591
592	ENDIF
593
594	IF ( cloud_droplets ) THEN
595	!
596	!-- Liquid water content, change in liquid water content
597	#if defined( __nopointer )
598	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
599	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
600	#else
601	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
602	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
603	#endif
604	!
605	!-- Real volume of particles (with weighting), volume of particles
606	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
607	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
608	ENDIF
609
610	ENDIF
611
612	ENDIF
613
614
615	IF ( passive_scalar ) THEN
616	!
617	!-- 2D-scalar arrays
618	ALLOCATE ( ss(nysg:nyng,nxlg:nxrg), &
619	ssws(nysg:nyng,nxlg:nxrg), &
620	sswst(nysg:nyng,nxlg:nxrg) )
621
622	!
623	!-- 3D scalar arrays
624	#if defined( __nopointer )
625	ALLOCATE( s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
626	s_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
627	ts_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
628	#else
629	ALLOCATE( s_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
630	s_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
631	s_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
632	#endif
633	ENDIF
634
635	IF ( ocean ) THEN
636	ALLOCATE( saswsb(nysg:nyng,nxlg:nxrg), &
637	saswst(nysg:nyng,nxlg:nxrg) )
638	#if defined( __nopointer )
639	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
640	rho_ocean(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
641	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
642	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
643	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
644	#else
645	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
646	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
647	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
648	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
649	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
650	prho => prho_1
651	rho_ocean => rho_1 ! routines calc_mean_profile and diffusion_e require
652	! density to be apointer
653	#endif
654	IF ( humidity_remote ) THEN
655	ALLOCATE( qswst_remote(nysg:nyng,nxlg:nxrg))
656	qswst_remote = 0.0_wp
657	ENDIF
658	ENDIF
659
660	!
661	!-- Allocation of anelastic and Boussinesq approximation specific arrays
662	ALLOCATE( p_hydrostatic(nzb:nzt+1) )
663	ALLOCATE( rho_air(nzb:nzt+1) )
664	ALLOCATE( rho_air_zw(nzb:nzt+1) )
665	ALLOCATE( drho_air(nzb:nzt+1) )
666	ALLOCATE( drho_air_zw(nzb:nzt+1) )
667
668	!
669	!-- Density profile calculation for anelastic approximation
670	IF ( TRIM( approximation ) == 'anelastic' ) THEN
671	t_surface = pt_surface * ( surface_pressure / 1000.0_wp )**( r_d / cp )
672	DO k = nzb, nzt+1
673	p_hydrostatic(k) = surface_pressure * 100.0_wp * &
674	( 1 - ( g * zu(k) ) / ( cp * t_surface ) &
675	)**( cp / r_d )
676	rho_air(k) = ( p_hydrostatic(k) * &
677	( 100000.0_wp / p_hydrostatic(k) &
678	)**( r_d / cp ) &
679	) / ( r_d * pt_init(k) )
680	ENDDO
681	DO k = nzb, nzt
682	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
683	ENDDO
684	rho_air_zw(nzt+1) = rho_air_zw(nzt) &
685	+ 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
686	ELSE
687	rho_air = 1.0_wp
688	rho_air_zw = 1.0_wp
689	ENDIF
690
691	!-- compute the inverse density array in order to avoid expencive divisions
692	drho_air = 1.0_wp / rho_air
693	drho_air_zw = 1.0_wp / rho_air_zw
694
695	!
696	!-- Allocation of flux conversion arrays
697	ALLOCATE( heatflux_input_conversion(nzb:nzt+1) )
698	ALLOCATE( waterflux_input_conversion(nzb:nzt+1) )
699	ALLOCATE( momentumflux_input_conversion(nzb:nzt+1) )
700	ALLOCATE( heatflux_output_conversion(nzb:nzt+1) )
701	ALLOCATE( waterflux_output_conversion(nzb:nzt+1) )
702	ALLOCATE( momentumflux_output_conversion(nzb:nzt+1) )
703
704	!
705	!-- calculate flux conversion factors according to approximation and in-/output mode
706	DO k = nzb, nzt+1
707
708	IF ( TRIM( flux_input_mode ) == 'kinematic' ) THEN
709	heatflux_input_conversion(k) = rho_air_zw(k)
710	waterflux_input_conversion(k) = rho_air_zw(k)
711	momentumflux_input_conversion(k) = rho_air_zw(k)
712	ELSEIF ( TRIM( flux_input_mode ) == 'dynamic' ) THEN
713	heatflux_input_conversion(k) = 1.0_wp / cp
714	waterflux_input_conversion(k) = 1.0_wp / l_v
715	momentumflux_input_conversion(k) = 1.0_wp
716	ENDIF
717
718	IF ( TRIM( flux_output_mode ) == 'kinematic' ) THEN
719	heatflux_output_conversion(k) = drho_air_zw(k)
720	waterflux_output_conversion(k) = drho_air_zw(k)
721	momentumflux_output_conversion(k) = drho_air_zw(k)
722	ELSEIF ( TRIM( flux_output_mode ) == 'dynamic' ) THEN
723	heatflux_output_conversion(k) = cp
724	waterflux_output_conversion(k) = l_v
725	momentumflux_output_conversion(k) = 1.0_wp
726	ENDIF
727
728	IF ( .NOT. humidity ) THEN
729	waterflux_input_conversion(k) = 1.0_wp
730	waterflux_output_conversion(k) = 1.0_wp
731	ENDIF
732
733	ENDDO
734
735	!
736	!-- In case of multigrid method, compute grid lengths and grid factors for the
737	!-- grid levels with respective density on each grid
738	IF ( psolver(1:9) == 'multigrid' ) THEN
739
740	ALLOCATE( ddx2_mg(maximum_grid_level) )
741	ALLOCATE( ddy2_mg(maximum_grid_level) )
742	ALLOCATE( dzu_mg(nzb+1:nzt+1,maximum_grid_level) )
743	ALLOCATE( dzw_mg(nzb+1:nzt+1,maximum_grid_level) )
744	ALLOCATE( f1_mg(nzb+1:nzt,maximum_grid_level) )
745	ALLOCATE( f2_mg(nzb+1:nzt,maximum_grid_level) )
746	ALLOCATE( f3_mg(nzb+1:nzt,maximum_grid_level) )
747	ALLOCATE( rho_air_mg(nzb:nzt+1,maximum_grid_level) )
748	ALLOCATE( rho_air_zw_mg(nzb:nzt+1,maximum_grid_level) )
749
750	dzu_mg(:,maximum_grid_level) = dzu
751	rho_air_mg(:,maximum_grid_level) = rho_air
752	!
753	!-- Next line to ensure an equally spaced grid.
754	dzu_mg(1,maximum_grid_level) = dzu(2)
755	rho_air_mg(nzb,maximum_grid_level) = rho_air(nzb) + &
756	(rho_air(nzb) - rho_air(nzb+1))
757
758	dzw_mg(:,maximum_grid_level) = dzw
759	rho_air_zw_mg(:,maximum_grid_level) = rho_air_zw
760	nzt_l = nzt
761	DO l = maximum_grid_level-1, 1, -1
762	dzu_mg(nzb+1,l) = 2.0_wp * dzu_mg(nzb+1,l+1)
763	dzw_mg(nzb+1,l) = 2.0_wp * dzw_mg(nzb+1,l+1)
764	rho_air_mg(nzb,l) = rho_air_mg(nzb,l+1) + (rho_air_mg(nzb,l+1) - rho_air_mg(nzb+1,l+1))
765	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))
766	rho_air_mg(nzb+1,l) = rho_air_mg(nzb+1,l+1)
767	rho_air_zw_mg(nzb+1,l) = rho_air_zw_mg(nzb+1,l+1)
768	nzt_l = nzt_l / 2
769	DO k = 2, nzt_l+1
770	dzu_mg(k,l) = dzu_mg(2k-2,l+1) + dzu_mg(2k-1,l+1)
771	dzw_mg(k,l) = dzw_mg(2k-2,l+1) + dzw_mg(2k-1,l+1)
772	rho_air_mg(k,l) = rho_air_mg(2*k-1,l+1)
773	rho_air_zw_mg(k,l) = rho_air_zw_mg(2*k-1,l+1)
774	ENDDO
775	ENDDO
776
777	nzt_l = nzt
778	dx_l = dx
779	dy_l = dy
780	DO l = maximum_grid_level, 1, -1
781	ddx2_mg(l) = 1.0_wp / dx_l**2
782	ddy2_mg(l) = 1.0_wp / dy_l**2
783	DO k = nzb+1, nzt_l
784	f2_mg(k,l) = rho_air_zw_mg(k,l) / ( dzu_mg(k+1,l) * dzw_mg(k,l) )
785	f3_mg(k,l) = rho_air_zw_mg(k-1,l) / ( dzu_mg(k,l) * dzw_mg(k,l) )
786	f1_mg(k,l) = 2.0_wp * ( ddx2_mg(l) + ddy2_mg(l) ) &
787	* rho_air_mg(k,l) + f2_mg(k,l) + f3_mg(k,l)
788	ENDDO
789	nzt_l = nzt_l / 2
790	dx_l = dx_l * 2.0_wp
791	dy_l = dy_l * 2.0_wp
792	ENDDO
793
794	ENDIF
795
796	!
797	!-- 3D-array for storing the dissipation, needed for calculating the sgs
798	!-- particle velocities
799	IF ( use_sgs_for_particles .OR. wang_kernel .OR. collision_turbulence &
800	.OR. num_acc_per_node > 0 ) THEN
801	ALLOCATE( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
802	ENDIF
803
804	!
805	!-- 1D-array for large scale subsidence velocity
806	IF ( .NOT. ALLOCATED( w_subs ) ) THEN
807	ALLOCATE ( w_subs(nzb:nzt+1) )
808	w_subs = 0.0_wp
809	ENDIF
810
811	!
812	!-- ID-array and state-space-array for the parallel random number generator
813	IF ( random_generator == 'random-parallel' ) THEN
814	ALLOCATE ( seq_random_array(5,nysg:nyng,nxlg:nxrg) )
815	ALLOCATE ( id_random_array(0:ny,0:nx) )
816	seq_random_array = 0
817	id_random_array = 0
818	ENDIF
819
820	!
821	!-- 4D-array for storing the Rif-values at vertical walls
822	IF ( topography /= 'flat' ) THEN
823	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
824	rif_wall = 0.0_wp
825	ENDIF
826
827	!
828	!-- Arrays to store velocity data from t-dt and the phase speeds which
829	!-- are needed for radiation boundary conditions
830	IF ( outflow_l ) THEN
831	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
832	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
833	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
834	ENDIF
835	IF ( outflow_r ) THEN
836	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
837	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
838	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
839	ENDIF
840	IF ( outflow_l .OR. outflow_r ) THEN
841	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
842	c_w(nzb:nzt+1,nysg:nyng) )
843	ENDIF
844	IF ( outflow_s ) THEN
845	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
846	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
847	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
848	ENDIF
849	IF ( outflow_n ) THEN
850	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
851	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
852	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
853	ENDIF
854	IF ( outflow_s .OR. outflow_n ) THEN
855	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
856	c_w(nzb:nzt+1,nxlg:nxrg) )
857	ENDIF
858	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
859	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
860	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
861	ENDIF
862
863
864	#if ! defined( __nopointer )
865	!
866	!-- Initial assignment of the pointers
867	e => e_1; e_p => e_2; te_m => e_3
868	IF ( .NOT. neutral ) THEN
869	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
870	ELSE
871	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
872	ENDIF
873	u => u_1; u_p => u_2; tu_m => u_3
874	v => v_1; v_p => v_2; tv_m => v_3
875	w => w_1; w_p => w_2; tw_m => w_3
876
877	IF ( humidity ) THEN
878	q => q_1; q_p => q_2; tq_m => q_3
879	IF ( humidity ) THEN
880	vpt => vpt_1
881	IF ( cloud_physics ) THEN
882	ql => ql_1
883	qc => qc_1
884	IF ( microphysics_seifert ) THEN
885	qr => qr_1; qr_p => qr_2; tqr_m => qr_3
886	nr => nr_1; nr_p => nr_2; tnr_m => nr_3
887	ENDIF
888	ENDIF
889	ENDIF
890	IF ( cloud_droplets ) THEN
891	ql => ql_1
892	ql_c => ql_2
893	ENDIF
894	ENDIF
895
896	IF ( passive_scalar ) THEN
897	s => s_1; s_p => s_2; ts_m => s_3
898	ENDIF
899
900	IF ( ocean ) THEN
901	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
902	ENDIF
903	#endif
904
905	!
906	!-- Allocate land surface model arrays
907	IF ( land_surface ) THEN
908	CALL lsm_init_arrays
909	ENDIF
910
911	!
912	!-- Allocate wind turbine model arrays
913	IF ( wind_turbine ) THEN
914	CALL wtm_init_arrays
915	ENDIF
916
917	!
918	!-- Initialize virtual flight measurements
919	IF ( virtual_flight ) THEN
920	CALL flight_init
921	ENDIF
922
923	!
924	!-- Allocate arrays containing the RK coefficient for calculation of
925	!-- perturbation pressure and turbulent fluxes. At this point values are
926	!-- set for pressure calculation during initialization (where no timestep
927	!-- is done). Further below the values needed within the timestep scheme
928	!-- will be set.
929	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
930	weight_pres(1:intermediate_timestep_count_max) )
931	weight_substep = 1.0_wp
932	weight_pres = 1.0_wp
933	intermediate_timestep_count = 0 ! needed when simulated_time = 0.0
934
935	CALL location_message( 'finished', .TRUE. )
936
937	!
938	!-- Initialize local summation arrays for routine flow_statistics.
939	!-- This is necessary because they may not yet have been initialized when they
940	!-- are called from flow_statistics (or - depending on the chosen model run -
941	!-- are never initialized)
942	sums_divnew_l = 0.0_wp
943	sums_divold_l = 0.0_wp
944	sums_l_l = 0.0_wp
945	sums_up_fraction_l = 0.0_wp
946	sums_wsts_bc_l = 0.0_wp
947
948
949	!
950	!-- Initialize model variables
951	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
952	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
953	!
954	!-- First model run of a possible job queue.
955	!-- Initial profiles of the variables must be computes.
956	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
957
958	CALL location_message( 'initializing with 1D model profiles', .FALSE. )
959	!
960	!-- Use solutions of the 1D model as initial profiles,
961	!-- start 1D model
962	CALL init_1d_model
963	!
964	!-- Transfer initial profiles to the arrays of the 3D model
965	DO i = nxlg, nxrg
966	DO j = nysg, nyng
967	e(:,j,i) = e1d
968	kh(:,j,i) = kh1d
969	km(:,j,i) = km1d
970	pt(:,j,i) = pt_init
971	u(:,j,i) = u1d
972	v(:,j,i) = v1d
973	ENDDO
974	ENDDO
975
976	IF ( humidity ) THEN
977	DO i = nxlg, nxrg
978	DO j = nysg, nyng
979	q(:,j,i) = q_init
980	ENDDO
981	ENDDO
982	IF ( cloud_physics .AND. microphysics_seifert ) THEN
983	DO i = nxlg, nxrg
984	DO j = nysg, nyng
985	qr(:,j,i) = 0.0_wp
986	nr(:,j,i) = 0.0_wp
987	ENDDO
988	ENDDO
989
990	ENDIF
991	ENDIF
992	IF ( passive_scalar ) THEN
993	DO i = nxlg, nxrg
994	DO j = nysg, nyng
995	s(:,j,i) = s_init
996	ENDDO
997	ENDDO
998	ENDIF
999
1000	IF ( .NOT. constant_diffusion ) THEN
1001	DO i = nxlg, nxrg
1002	DO j = nysg, nyng
1003	e(:,j,i) = e1d
1004	ENDDO
1005	ENDDO
1006	!
1007	!-- Store initial profiles for output purposes etc.
1008	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
1009
1010	IF ( constant_flux_layer ) THEN
1011	ol = ( zu(nzb+1) - zw(nzb) ) / ( rif1d(nzb+1) + 1.0E-20_wp )
1012	ts = 0.0_wp ! could actually be computed more accurately in the
1013	! 1D model. Update when opportunity arises.
1014	us = us1d
1015	usws = usws1d
1016	vsws = vsws1d
1017	ELSE
1018	ts = 0.0_wp ! must be set, because used in
1019	ol = ( zu(nzb+1) - zw(nzb) ) / zeta_min ! flowste
1020	us = 0.0_wp
1021	usws = 0.0_wp
1022	vsws = 0.0_wp
1023	ENDIF
1024
1025	ELSE
1026	e = 0.0_wp ! must be set, because used in
1027	ol = ( zu(nzb+1) - zw(nzb) ) / zeta_min ! flowste
1028	ts = 0.0_wp
1029	us = 0.0_wp
1030	usws = 0.0_wp
1031	vsws = 0.0_wp
1032	ENDIF
1033	uswst = top_momentumflux_u * momentumflux_input_conversion(nzt+1)
1034	vswst = top_momentumflux_v * momentumflux_input_conversion(nzt+1)
1035
1036	!
1037	!-- In every case qs = 0.0 (see also pt)
1038	!-- This could actually be computed more accurately in the 1D model.
1039	!-- Update when opportunity arises!
1040	IF ( humidity ) THEN
1041	qs = 0.0_wp
1042	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1043	qrs = 0.0_wp
1044	nrs = 0.0_wp
1045	ENDIF
1046	ENDIF
1047	!
1048	!-- Initialize scaling parameter for passive scalar
1049	IF ( passive_scalar ) ss = 0.0_wp
1050
1051	!
1052	!-- Inside buildings set velocities back to zero
1053	IF ( topography /= 'flat' ) THEN
1054	DO i = nxlg, nxrg
1055	DO j = nysg, nyng
1056	u(nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
1057	v(nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
1058	ENDDO
1059	ENDDO
1060
1061	!
1062	!-- WARNING: The extra boundary conditions set after running the
1063	!-- ------- 1D model impose an error on the divergence one layer
1064	!-- below the topography; need to correct later
1065	!-- ATTENTION: Provisional correction for Piacsek & Williams
1066	!-- --------- advection scheme: keep u and v zero one layer below
1067	!-- the topography.
1068	IF ( ibc_uv_b == 1 ) THEN
1069	!
1070	!-- Neumann condition
1071	DO i = nxl-1, nxr+1
1072	DO j = nys-1, nyn+1
1073	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
1074	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
1075	ENDDO
1076	ENDDO
1077
1078	ENDIF
1079
1080	ENDIF
1081
1082	CALL location_message( 'finished', .TRUE. )
1083
1084	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
1085	THEN
1086
1087	CALL location_message( 'initializing with constant profiles', .FALSE. )
1088	!
1089	!-- Overwrite initial profiles in case of nudging
1090	IF ( nudging ) THEN
1091	pt_init = ptnudge(:,1)
1092	u_init = unudge(:,1)
1093	v_init = vnudge(:,1)
1094	IF ( humidity ) THEN ! is passive_scalar correct???
1095	q_init = qnudge(:,1)
1096	ENDIF
1097
1098	WRITE( message_string, * ) 'Initial profiles of u, v and ', &
1099	'scalars from NUDGING_DATA are used.'
1100	CALL message( 'init_3d_model', 'PA0370', 0, 0, 0, 6, 0 )
1101	ENDIF
1102
1103	!
1104	!-- Use constructed initial profiles (velocity constant with height,
1105	!-- temperature profile with constant gradient)
1106	DO i = nxlg, nxrg
1107	DO j = nysg, nyng
1108	pt(:,j,i) = pt_init
1109	u(:,j,i) = u_init
1110	v(:,j,i) = v_init
1111	ENDDO
1112	ENDDO
1113
1114	!
1115	!-- Set initial horizontal velocities at the lowest computational grid
1116	!-- levels to zero in order to avoid too small time steps caused by the
1117	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
1118	!-- in the limiting formula!).
1119	IF ( ibc_uv_b /= 1 ) THEN
1120	DO i = nxlg, nxrg
1121	DO j = nysg, nyng
1122	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0_wp
1123	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0_wp
1124	ENDDO
1125	ENDDO
1126	ENDIF
1127
1128	IF ( humidity ) THEN
1129	DO i = nxlg, nxrg
1130	DO j = nysg, nyng
1131	q(:,j,i) = q_init
1132	ENDDO
1133	ENDDO
1134	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1135
1136	DO i = nxlg, nxrg
1137	DO j = nysg, nyng
1138	qr(:,j,i) = 0.0_wp
1139	nr(:,j,i) = 0.0_wp
1140	ENDDO
1141	ENDDO
1142
1143	ENDIF
1144	ENDIF
1145
1146	IF ( passive_scalar ) THEN
1147	DO i = nxlg, nxrg
1148	DO j = nysg, nyng
1149	s(:,j,i) = s_init
1150	ENDDO
1151	ENDDO
1152	ENDIF
1153
1154	IF ( ocean ) THEN
1155	DO i = nxlg, nxrg
1156	DO j = nysg, nyng
1157	sa(:,j,i) = sa_init
1158	ENDDO
1159	ENDDO
1160	ENDIF
1161
1162	IF ( constant_diffusion ) THEN
1163	km = km_constant
1164	kh = km / prandtl_number
1165	e = 0.0_wp
1166	ELSEIF ( e_init > 0.0_wp ) THEN
1167	DO k = nzb+1, nzt
1168	km(k,:,:) = 0.1_wp * l_grid(k) * SQRT( e_init )
1169	ENDDO
1170	km(nzb,:,:) = km(nzb+1,:,:)
1171	km(nzt+1,:,:) = km(nzt,:,:)
1172	kh = km / prandtl_number
1173	e = e_init
1174	ELSE
1175	IF ( .NOT. ocean ) THEN
1176	kh = 0.01_wp ! there must exist an initial diffusion, because
1177	km = 0.01_wp ! otherwise no TKE would be produced by the
1178	! production terms, as long as not yet
1179	! e = (u/cm)*2 at k=nzb+1
1180	ELSE
1181	kh = 0.00001_wp
1182	km = 0.00001_wp
1183	ENDIF
1184	e = 0.0_wp
1185	ENDIF
1186	ol = ( zu(nzb+1) - zw(nzb) ) / zeta_min
1187	ts = 0.0_wp
1188	!
1189	!-- Very small number is required for calculation of Obukhov length
1190	!-- at first timestep
1191	us = 1E-30_wp
1192	usws = 0.0_wp
1193	uswst = top_momentumflux_u * momentumflux_input_conversion(nzt+1)
1194	vsws = 0.0_wp
1195	vswst = top_momentumflux_v * momentumflux_input_conversion(nzt+1)
1196	IF ( humidity ) qs = 0.0_wp
1197	IF ( passive_scalar ) ss = 0.0_wp
1198
1199	!
1200	!-- Compute initial temperature field and other constants used in case
1201	!-- of a sloping surface
1202	IF ( sloping_surface ) CALL init_slope
1203
1204	CALL location_message( 'finished', .TRUE. )
1205
1206	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
1207	THEN
1208
1209	CALL location_message( 'initializing by user', .FALSE. )
1210	!
1211	!-- Initialization will completely be done by the user
1212	CALL user_init_3d_model
1213
1214	CALL location_message( 'finished', .TRUE. )
1215
1216	ENDIF
1217
1218	CALL location_message( 'initializing statistics, boundary conditions, etc.', &
1219	.FALSE. )
1220
1221	!
1222	!-- Bottom boundary
1223	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
1224	u(nzb,:,:) = 0.0_wp
1225	v(nzb,:,:) = 0.0_wp
1226	ENDIF
1227
1228	!
1229	!-- Apply channel flow boundary condition
1230	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
1231	u(nzt+1,:,:) = 0.0_wp
1232	v(nzt+1,:,:) = 0.0_wp
1233	ENDIF
1234
1235	!
1236	!-- Calculate virtual potential temperature
1237	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
1238
1239	!
1240	!-- Store initial profiles for output purposes etc.
1241	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
1242	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
1243	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
1244	hom(nzb,1,5,:) = 0.0_wp
1245	hom(nzb,1,6,:) = 0.0_wp
1246	ENDIF
1247	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
1248	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
1249	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
1250
1251	IF ( ocean ) THEN
1252	!
1253	!-- Store initial salinity profile
1254	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
1255	ENDIF
1256
1257	IF ( humidity ) THEN
1258	!
1259	!-- Store initial profile of total water content, virtual potential
1260	!-- temperature
1261	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
1262	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
1263	IF ( cloud_physics .OR. cloud_droplets ) THEN
1264	!
1265	!-- Store initial profile of specific humidity and potential
1266	!-- temperature
1267	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
1268	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
1269	ENDIF
1270	ENDIF
1271
1272	IF ( passive_scalar ) THEN
1273	!
1274	!-- Store initial scalar profile
1275	hom(:,1,115,:) = SPREAD( s(:,nys,nxl), 2, statistic_regions+1 )
1276	ENDIF
1277
1278	!
1279	!-- Initialize the random number generators (from numerical recipes)
1280	CALL random_function_ini
1281
1282	IF ( random_generator == 'random-parallel' ) THEN
1283	!-- Asigning an ID to every vertical gridpoint column
1284	!-- dependig on the ensemble run number.
1285	random_dummy=1
1286	DO j=0,ny
1287	DO i=0,nx
1288	id_random_array(j,i) = random_dummy + 1E6 &
1289	* ( ensemble_member_nr - 1000 )
1290	random_dummy = random_dummy + 1
1291	END DO
1292	ENDDO
1293	!-- Initializing with random_seed_parallel for every vertical
1294	!-- gridpoint column.
1295	random_dummy=0
1296	DO j = nysg, nyng
1297	DO i = nxlg, nxrg
1298	CALL random_seed_parallel (random_sequence=id_random_array(j, i))
1299	CALL random_number_parallel (random_dummy)
1300	CALL random_seed_parallel (get=seq_random_array(:, j, i))
1301	END DO
1302	ENDDO
1303	ENDIF
1304
1305	!
1306	!-- Initialize fluxes at bottom surface
1307	IF ( use_surface_fluxes ) THEN
1308
1309	IF ( constant_heatflux ) THEN
1310	!
1311	!-- Heat flux is prescribed
1312	IF ( random_heatflux ) THEN
1313	CALL disturb_heatflux
1314	ELSE
1315	shf = surface_heatflux * heatflux_input_conversion(nzb)
1316	!
1317	!-- Initialize shf with data from external file LSF_DATA
1318	IF ( large_scale_forcing .AND. lsf_surf ) THEN
1319	CALL ls_forcing_surf ( simulated_time )
1320	ENDIF
1321
1322	!
1323	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
1324	IF ( TRIM( topography ) /= 'flat' ) THEN
1325	DO i = nxlg, nxrg
1326	DO j = nysg, nyng
1327	IF ( nzb_s_inner(j,i) /= 0 ) THEN
1328	shf(j,i) = wall_heatflux(0) &
1329	* heatflux_input_conversion(nzb_s_inner(j,i))
1330	ENDIF
1331	ENDDO
1332	ENDDO
1333	ENDIF
1334	ENDIF
1335	ENDIF
1336
1337	!
1338	!-- Determine the near-surface water flux
1339	IF ( humidity ) THEN
1340	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1341	qrsws = 0.0_wp
1342	nrsws = 0.0_wp
1343	ENDIF
1344	IF ( constant_waterflux ) THEN
1345	qsws = surface_waterflux * waterflux_input_conversion(nzb)
1346	!
1347	!-- Over topography surface_waterflux is replaced by
1348	!-- wall_humidityflux(0)
1349	IF ( TRIM( topography ) /= 'flat' ) THEN
1350	wall_qflux = wall_humidityflux
1351	DO i = nxlg, nxrg
1352	DO j = nysg, nyng
1353	IF ( nzb_s_inner(j,i) /= 0 ) THEN
1354	qsws(j,i) = wall_qflux(0) &
1355	* waterflux_input_conversion(nzb_s_inner(j,i))
1356	ENDIF
1357	ENDDO
1358	ENDDO
1359	ENDIF
1360	ENDIF
1361	ENDIF
1362	!
1363	!-- Initialize the near-surface scalar flux
1364	IF ( passive_scalar ) THEN
1365	IF ( constant_scalarflux ) THEN
1366	ssws = surface_scalarflux
1367	!
1368	!-- Over topography surface_scalarflux is replaced by
1369	!-- wall_scalarflux(0)
1370	IF ( TRIM( topography ) /= 'flat' ) THEN
1371	wall_sflux = wall_scalarflux
1372	DO i = nxlg, nxrg
1373	DO j = nysg, nyng
1374	IF ( nzb_s_inner(j,i) /= 0 ) ssws(j,i) = wall_sflux(0)
1375	ENDDO
1376	ENDDO
1377	ENDIF
1378	ENDIF
1379	ENDIF
1380	!
1381	!-- Initialize near-surface salinity flux
1382	IF ( ocean ) saswsb = bottom_salinityflux
1383
1384	ENDIF
1385
1386	!
1387	!-- Initialize fluxes at top surface
1388	!-- Currently, only the heatflux and salinity flux can be prescribed.
1389	!-- The latent flux is zero in this case!
1390	IF ( use_top_fluxes ) THEN
1391	!
1392	!-- Prescribe to heat flux
1393	IF ( constant_top_heatflux ) tswst = top_heatflux &
1394	* heatflux_input_conversion(nzt+1)
1395	!
1396	!-- Prescribe zero latent flux at the top
1397	IF ( humidity ) THEN
1398	qswst = 0.0_wp
1399	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1400	nrswst = 0.0_wp
1401	qrswst = 0.0_wp
1402	ENDIF
1403	ENDIF
1404	!
1405	!-- Prescribe top scalar flux
1406	IF ( passive_scalar .AND. constant_top_scalarflux ) &
1407	sswst = top_scalarflux
1408	!
1409	!-- Prescribe top salinity flux
1410	IF ( ocean .AND. constant_top_salinityflux) &
1411	saswst = top_salinityflux
1412	!
1413	!-- Initialization in case of a coupled model run
1414	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
1415	tswst = 0.0_wp
1416	ENDIF
1417
1418	ENDIF
1419
1420	!
1421	!-- Initialize Prandtl layer quantities
1422	IF ( constant_flux_layer ) THEN
1423
1424	z0 = roughness_length
1425	z0h = z0h_factor * z0
1426	z0q = z0h_factor * z0
1427
1428	IF ( .NOT. constant_heatflux ) THEN
1429	!
1430	!-- Surface temperature is prescribed. Here the heat flux cannot be
1431	!-- simply estimated, because therefore ol, u* and theta* would have
1432	!-- to be computed by iteration. This is why the heat flux is assumed
1433	!-- to be zero before the first time step. It approaches its correct
1434	!-- value in the course of the first few time steps.
1435	shf = 0.0_wp
1436	ENDIF
1437
1438	IF ( humidity ) THEN
1439	IF ( .NOT. constant_waterflux ) qsws = 0.0_wp
1440	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1441	qrsws = 0.0_wp
1442	nrsws = 0.0_wp
1443	ENDIF
1444	ENDIF
1445	IF ( passive_scalar .AND. .NOT. constant_scalarflux ) ssws = 0.0_wp
1446
1447	ENDIF
1448
1449	!
1450	!-- Set the reference state to be used in the buoyancy terms (for ocean runs
1451	!-- the reference state will be set (overwritten) in init_ocean)
1452	IF ( use_single_reference_value ) THEN
1453	IF ( .NOT. humidity ) THEN
1454	ref_state(:) = pt_reference
1455	ELSE
1456	ref_state(:) = vpt_reference
1457	ENDIF
1458	ELSE
1459	IF ( .NOT. humidity ) THEN
1460	ref_state(:) = pt_init(:)
1461	ELSE
1462	ref_state(:) = vpt(:,nys,nxl)
1463	ENDIF
1464	ENDIF
1465
1466	!
1467	!-- For the moment, vertical velocity is zero
1468	w = 0.0_wp
1469
1470	!
1471	!-- Initialize array sums (must be defined in first call of pres)
1472	sums = 0.0_wp
1473
1474	!
1475	!-- In case of iterative solvers, p must get an initial value
1476	IF ( psolver(1:9) == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
1477
1478	!
1479	!-- Treating cloud physics, liquid water content and precipitation amount
1480	!-- are zero at beginning of the simulation
1481	IF ( cloud_physics ) THEN
1482	ql = 0.0_wp
1483	qc = 0.0_wp
1484
1485	precipitation_amount = 0.0_wp
1486	ENDIF
1487	!
1488	!-- Impose vortex with vertical axis on the initial velocity profile
1489	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
1490	CALL init_rankine
1491	ENDIF
1492
1493	!
1494	!-- Impose temperature anomaly (advection test only)
1495	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
1496	CALL init_pt_anomaly
1497	ENDIF
1498
1499	!
1500	!-- If required, change the surface temperature at the start of the 3D run
1501	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
1502	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
1503	ENDIF
1504
1505	!
1506	!-- If required, change the surface humidity/scalar at the start of the 3D
1507	!-- run
1508	IF ( humidity .AND. q_surface_initial_change /= 0.0_wp ) &
1509	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
1510
1511	IF ( passive_scalar .AND. s_surface_initial_change /= 0.0_wp ) &
1512	s(nzb,:,:) = s(nzb,:,:) + s_surface_initial_change
1513
1514
1515	!
1516	!-- Initialize old and new time levels.
1517	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
1518	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1519
1520	IF ( humidity ) THEN
1521	tq_m = 0.0_wp
1522	q_p = q
1523	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1524	tqr_m = 0.0_wp
1525	qr_p = qr
1526	tnr_m = 0.0_wp
1527	nr_p = nr
1528	ENDIF
1529	ENDIF
1530
1531	IF ( passive_scalar ) THEN
1532	ts_m = 0.0_wp
1533	s_p = s
1534	ENDIF
1535
1536	IF ( ocean ) THEN
1537	tsa_m = 0.0_wp
1538	sa_p = sa
1539	ENDIF
1540
1541	CALL location_message( 'finished', .TRUE. )
1542
1543	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
1544	TRIM( initializing_actions ) == 'cyclic_fill' ) &
1545	THEN
1546
1547	CALL location_message( 'initializing in case of restart / cyclic_fill', &
1548	.FALSE. )
1549	!
1550	!-- When reading data for cyclic fill of 3D prerun data files, read
1551	!-- some of the global variables from the restart file which are required
1552	!-- for initializing the inflow
1553	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1554
1555	DO i = 0, io_blocks-1
1556	IF ( i == io_group ) THEN
1557	CALL read_parts_of_var_list
1558	CALL close_file( 13 )
1559	ENDIF
1560	#if defined( __parallel )
1561	CALL MPI_BARRIER( comm2d, ierr )
1562	#endif
1563	ENDDO
1564
1565	ENDIF
1566
1567	!
1568	!-- Read binary data from restart file
1569	DO i = 0, io_blocks-1
1570	IF ( i == io_group ) THEN
1571	CALL read_3d_binary
1572	ENDIF
1573	#if defined( __parallel )
1574	CALL MPI_BARRIER( comm2d, ierr )
1575	#endif
1576	ENDDO
1577
1578	!
1579	!-- Initialization of the turbulence recycling method
1580	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1581	turbulent_inflow ) THEN
1582	!
1583	!-- First store the profiles to be used at the inflow.
1584	!-- These profiles are the (temporally) and horizontally averaged vertical
1585	!-- profiles from the prerun. Alternatively, prescribed profiles
1586	!-- for u,v-components can be used.
1587	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,7) )
1588
1589	IF ( use_prescribed_profile_data ) THEN
1590	mean_inflow_profiles(:,1) = u_init ! u
1591	mean_inflow_profiles(:,2) = v_init ! v
1592	ELSE
1593	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
1594	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
1595	ENDIF
1596	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
1597	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
1598	IF ( humidity ) &
1599	mean_inflow_profiles(:,6) = hom_sum(:,41,0) ! q
1600	IF ( passive_scalar ) &
1601	mean_inflow_profiles(:,7) = hom_sum(:,115,0) ! s
1602
1603	!
1604	!-- If necessary, adjust the horizontal flow field to the prescribed
1605	!-- profiles
1606	IF ( use_prescribed_profile_data ) THEN
1607	DO i = nxlg, nxrg
1608	DO j = nysg, nyng
1609	DO k = nzb, nzt+1
1610	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
1611	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
1612	ENDDO
1613	ENDDO
1614	ENDDO
1615	ENDIF
1616
1617	!
1618	!-- Use these mean profiles at the inflow (provided that Dirichlet
1619	!-- conditions are used)
1620	IF ( inflow_l ) THEN
1621	DO j = nysg, nyng
1622	DO k = nzb, nzt+1
1623	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
1624	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
1625	w(k,j,nxlg:-1) = 0.0_wp
1626	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
1627	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
1628	IF ( humidity ) &
1629	q(k,j,nxlg:-1) = mean_inflow_profiles(k,6)
1630	IF ( passive_scalar ) &
1631	s(k,j,nxlg:-1) = mean_inflow_profiles(k,7)
1632	ENDDO
1633	ENDDO
1634	ENDIF
1635
1636	!
1637	!-- Calculate the damping factors to be used at the inflow. For a
1638	!-- turbulent inflow the turbulent fluctuations have to be limited
1639	!-- vertically because otherwise the turbulent inflow layer will grow
1640	!-- in time.
1641	IF ( inflow_damping_height == 9999999.9_wp ) THEN
1642	!
1643	!-- Default: use the inversion height calculated by the prerun; if
1644	!-- this is zero, inflow_damping_height must be explicitly
1645	!-- specified.
1646	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
1647	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
1648	ELSE
1649	WRITE( message_string, * ) 'inflow_damping_height must be ', &
1650	'explicitly specified because&the inversion height ', &
1651	'calculated by the prerun is zero.'
1652	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
1653	ENDIF
1654
1655	ENDIF
1656
1657	IF ( inflow_damping_width == 9999999.9_wp ) THEN
1658	!
1659	!-- Default for the transition range: one tenth of the undamped
1660	!-- layer
1661	inflow_damping_width = 0.1_wp * inflow_damping_height
1662
1663	ENDIF
1664
1665	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
1666
1667	DO k = nzb, nzt+1
1668
1669	IF ( zu(k) <= inflow_damping_height ) THEN
1670	inflow_damping_factor(k) = 1.0_wp
1671	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
1672	inflow_damping_factor(k) = 1.0_wp - &
1673	( zu(k) - inflow_damping_height ) / &
1674	inflow_damping_width
1675	ELSE
1676	inflow_damping_factor(k) = 0.0_wp
1677	ENDIF
1678
1679	ENDDO
1680
1681	ENDIF
1682
1683	!
1684	!-- Inside buildings set velocities and TKE back to zero
1685	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1686	topography /= 'flat' ) THEN
1687	!
1688	!-- Inside buildings set velocities and TKE back to zero.
1689	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
1690	!-- maybe revise later.
1691	DO i = nxlg, nxrg
1692	DO j = nysg, nyng
1693	u (nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
1694	v (nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
1695	w (nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1696	e (nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1697	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
1698	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
1699	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1700	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1701	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1702	ENDDO
1703	ENDDO
1704
1705	ENDIF
1706
1707	!
1708	!-- Calculate initial temperature field and other constants used in case
1709	!-- of a sloping surface
1710	IF ( sloping_surface ) CALL init_slope
1711
1712	!
1713	!-- Initialize new time levels (only done in order to set boundary values
1714	!-- including ghost points)
1715	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1716	IF ( humidity ) THEN
1717	q_p = q
1718	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1719	qr_p = qr
1720	nr_p = nr
1721	ENDIF
1722	ENDIF
1723	IF ( passive_scalar ) s_p = s
1724	IF ( ocean ) sa_p = sa
1725
1726	!
1727	!-- Allthough tendency arrays are set in prognostic_equations, they have
1728	!-- have to be predefined here because they are used (but multiplied with 0)
1729	!-- there before they are set.
1730	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
1731	IF ( humidity ) THEN
1732	tq_m = 0.0_wp
1733	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1734	tqr_m = 0.0_wp
1735	tnr_m = 0.0_wp
1736	ENDIF
1737	ENDIF
1738	IF ( passive_scalar ) ts_m = 0.0_wp
1739	IF ( ocean ) tsa_m = 0.0_wp
1740
1741	CALL location_message( 'finished', .TRUE. )
1742
1743	ELSE
1744	!
1745	!-- Actually this part of the programm should not be reached
1746	message_string = 'unknown initializing problem'
1747	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
1748	ENDIF
1749
1750
1751	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1752	!
1753	!-- Initialize old timelevels needed for radiation boundary conditions
1754	IF ( outflow_l ) THEN
1755	u_m_l(:,:,:) = u(:,:,1:2)
1756	v_m_l(:,:,:) = v(:,:,0:1)
1757	w_m_l(:,:,:) = w(:,:,0:1)
1758	ENDIF
1759	IF ( outflow_r ) THEN
1760	u_m_r(:,:,:) = u(:,:,nx-1:nx)
1761	v_m_r(:,:,:) = v(:,:,nx-1:nx)
1762	w_m_r(:,:,:) = w(:,:,nx-1:nx)
1763	ENDIF
1764	IF ( outflow_s ) THEN
1765	u_m_s(:,:,:) = u(:,0:1,:)
1766	v_m_s(:,:,:) = v(:,1:2,:)
1767	w_m_s(:,:,:) = w(:,0:1,:)
1768	ENDIF
1769	IF ( outflow_n ) THEN
1770	u_m_n(:,:,:) = u(:,ny-1:ny,:)
1771	v_m_n(:,:,:) = v(:,ny-1:ny,:)
1772	w_m_n(:,:,:) = w(:,ny-1:ny,:)
1773	ENDIF
1774
1775	ENDIF
1776
1777	!
1778	!-- Calculate the initial volume flow at the right and north boundary
1779	IF ( conserve_volume_flow ) THEN
1780
1781	IF ( use_prescribed_profile_data ) THEN
1782
1783	volume_flow_initial_l = 0.0_wp
1784	volume_flow_area_l = 0.0_wp
1785
1786	IF ( nxr == nx ) THEN
1787	DO j = nys, nyn
1788	DO k = nzb_u_inner(j,nx)+1, nzt
1789	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1790	u_init(k) * dzw(k)
1791	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1792	ENDDO
1793	ENDDO
1794	ENDIF
1795
1796	IF ( nyn == ny ) THEN
1797	DO i = nxl, nxr
1798	DO k = nzb_v_inner(ny,i)+1, nzt
1799	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1800	v_init(k) * dzw(k)
1801	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1802	ENDDO
1803	ENDDO
1804	ENDIF
1805
1806	#if defined( __parallel )
1807	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1808	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1809	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1810	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1811
1812	#else
1813	volume_flow_initial = volume_flow_initial_l
1814	volume_flow_area = volume_flow_area_l
1815	#endif
1816
1817	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1818
1819	volume_flow_initial_l = 0.0_wp
1820	volume_flow_area_l = 0.0_wp
1821
1822	IF ( nxr == nx ) THEN
1823	DO j = nys, nyn
1824	DO k = nzb_u_inner(j,nx)+1, nzt
1825	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1826	hom_sum(k,1,0) * dzw(k)
1827	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1828	ENDDO
1829	ENDDO
1830	ENDIF
1831
1832	IF ( nyn == ny ) THEN
1833	DO i = nxl, nxr
1834	DO k = nzb_v_inner(ny,i)+1, nzt
1835	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1836	hom_sum(k,2,0) * dzw(k)
1837	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1838	ENDDO
1839	ENDDO
1840	ENDIF
1841
1842	#if defined( __parallel )
1843	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1844	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1845	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1846	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1847
1848	#else
1849	volume_flow_initial = volume_flow_initial_l
1850	volume_flow_area = volume_flow_area_l
1851	#endif
1852
1853	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1854
1855	volume_flow_initial_l = 0.0_wp
1856	volume_flow_area_l = 0.0_wp
1857
1858	IF ( nxr == nx ) THEN
1859	DO j = nys, nyn
1860	DO k = nzb_u_inner(j,nx)+1, nzt
1861	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1862	u(k,j,nx) * dzw(k)
1863	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1864	ENDDO
1865	ENDDO
1866	ENDIF
1867
1868	IF ( nyn == ny ) THEN
1869	DO i = nxl, nxr
1870	DO k = nzb_v_inner(ny,i)+1, nzt
1871	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1872	v(k,ny,i) * dzw(k)
1873	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1874	ENDDO
1875	ENDDO
1876	ENDIF
1877
1878	#if defined( __parallel )
1879	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1880	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1881	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1882	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1883
1884	#else
1885	volume_flow_initial = volume_flow_initial_l
1886	volume_flow_area = volume_flow_area_l
1887	#endif
1888
1889	ENDIF
1890
1891	!
1892	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
1893	!-- from u\|v_bulk instead
1894	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
1895	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
1896	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
1897	ENDIF
1898
1899	ENDIF
1900
1901	!
1902	!-- Initialize quantities for special advections schemes
1903	CALL init_advec
1904
1905	!
1906	!-- Impose random perturbation on the horizontal velocity field and then
1907	!-- remove the divergences from the velocity field at the initial stage
1908	IF ( create_disturbances .AND. disturbance_energy_limit /= 0.0_wp .AND. &
1909	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1910	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1911
1912	CALL location_message( 'creating initial disturbances', .FALSE. )
1913	CALL disturb_field( nzb_u_inner, tend, u )
1914	CALL disturb_field( nzb_v_inner, tend, v )
1915	CALL location_message( 'finished', .TRUE. )
1916
1917	CALL location_message( 'calling pressure solver', .FALSE. )
1918	n_sor = nsor_ini
1919	!$acc data copyin( d, ddzu, ddzw, nzb_s_inner, nzb_u_inner ) &
1920	!$acc copyin( nzb_v_inner, nzb_w_inner, p, rflags_s_inner, tend ) &
1921	!$acc copyin( weight_pres, weight_substep ) &
1922	!$acc copy( tri, tric, u, v, w )
1923	CALL pres
1924	!$acc end data
1925	n_sor = nsor
1926	CALL location_message( 'finished', .TRUE. )
1927
1928	ENDIF
1929
1930	!
1931	!-- If required, initialize quantities needed for the plant canopy model
1932	IF ( plant_canopy ) THEN
1933	CALL location_message( 'initializing plant canopy model', .FALSE. )
1934	CALL pcm_init
1935	CALL location_message( 'finished', .TRUE. )
1936	ENDIF
1937
1938	!
1939	!-- If required, initialize dvrp-software
1940	IF ( dt_dvrp /= 9999999.9_wp ) CALL init_dvrp
1941
1942	IF ( ocean ) THEN
1943	!
1944	!-- Initialize quantities needed for the ocean model
1945	CALL init_ocean
1946
1947	ELSE
1948	!
1949	!-- Initialize quantities for handling cloud physics
1950	!-- This routine must be called before lpm_init, because
1951	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
1952	!-- lpm_init) is not defined.
1953	CALL init_cloud_physics
1954	!
1955	!-- Initialize bulk cloud microphysics
1956	CALL microphysics_init
1957	ENDIF
1958
1959	!
1960	!-- If required, initialize particles
1961	IF ( particle_advection ) CALL lpm_init
1962
1963	!
1964	!-- If required, initialize quantities needed for the LSM
1965	IF ( land_surface ) THEN
1966	CALL location_message( 'initializing land surface model', .FALSE. )
1967	CALL lsm_init
1968	CALL location_message( 'finished', .TRUE. )
1969	ENDIF
1970
1971	!
1972	!-- Initialize surface layer (done after LSM as roughness length are required
1973	!-- for initialization
1974	IF ( constant_flux_layer ) THEN
1975	CALL location_message( 'initializing surface layer', .FALSE. )
1976	CALL init_surface_layer_fluxes
1977	CALL location_message( 'finished', .TRUE. )
1978	ENDIF
1979
1980	!
1981	!-- If required, initialize radiation model
1982	IF ( radiation ) THEN
1983	CALL location_message( 'initializing radiation model', .FALSE. )
1984	CALL radiation_init
1985	CALL location_message( 'finished', .TRUE. )
1986	ENDIF
1987
1988	!
1989	!-- If required, initialize urban surface model
1990	IF ( urban_surface ) THEN
1991	CALL location_message( 'initializing urban surface model', .FALSE. )
1992	CALL usm_init_urban_surface
1993	CALL location_message( 'finished', .TRUE. )
1994	ENDIF
1995
1996	!
1997	!-- If required, initialize quantities needed for the wind turbine model
1998	IF ( wind_turbine ) THEN
1999	CALL location_message( 'initializing wind turbine model', .FALSE. )
2000	CALL wtm_init
2001	CALL location_message( 'finished', .TRUE. )
2002	ENDIF
2003
2004
2005	!
2006	!-- Initialize the ws-scheme.
2007	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
2008
2009	!
2010	!-- Setting weighting factors for calculation of perturbation pressure
2011	!-- and turbulent quantities from the RK substeps
2012	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
2013
2014	weight_substep(1) = 1._wp/6._wp
2015	weight_substep(2) = 3._wp/10._wp
2016	weight_substep(3) = 8._wp/15._wp
2017
2018	weight_pres(1) = 1._wp/3._wp
2019	weight_pres(2) = 5._wp/12._wp
2020	weight_pres(3) = 1._wp/4._wp
2021
2022	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
2023
2024	weight_substep(1) = 1._wp/2._wp
2025	weight_substep(2) = 1._wp/2._wp
2026
2027	weight_pres(1) = 1._wp/2._wp
2028	weight_pres(2) = 1._wp/2._wp
2029
2030	ELSE ! for Euler-method
2031
2032	weight_substep(1) = 1.0_wp
2033	weight_pres(1) = 1.0_wp
2034
2035	ENDIF
2036
2037	!
2038	!-- Initialize Rayleigh damping factors
2039	rdf = 0.0_wp
2040	rdf_sc = 0.0_wp
2041	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
2042	IF ( .NOT. ocean ) THEN
2043	DO k = nzb+1, nzt
2044	IF ( zu(k) >= rayleigh_damping_height ) THEN
2045	rdf(k) = rayleigh_damping_factor * &
2046	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
2047	/ ( zu(nzt) - rayleigh_damping_height ) ) &
2048	)**2
2049	ENDIF
2050	ENDDO
2051	ELSE
2052	DO k = nzt, nzb+1, -1
2053	IF ( zu(k) <= rayleigh_damping_height ) THEN
2054	rdf(k) = rayleigh_damping_factor * &
2055	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
2056	/ ( rayleigh_damping_height - zu(nzb+1) ) ) &
2057	)**2
2058	ENDIF
2059	ENDDO
2060	ENDIF
2061	ENDIF
2062	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
2063
2064	!
2065	!-- Initialize the starting level and the vertical smoothing factor used for
2066	!-- the external pressure gradient
2067	dp_smooth_factor = 1.0_wp
2068	IF ( dp_external ) THEN
2069	!
2070	!-- Set the starting level dp_level_ind_b only if it has not been set before
2071	!-- (e.g. in init_grid).
2072	IF ( dp_level_ind_b == 0 ) THEN
2073	ind_array = MINLOC( ABS( dp_level_b - zu ) )
2074	dp_level_ind_b = ind_array(1) - 1 + nzb
2075	! MINLOC uses lower array bound 1
2076	ENDIF
2077	IF ( dp_smooth ) THEN
2078	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
2079	DO k = dp_level_ind_b+1, nzt
2080	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
2081	( REAL( k - dp_level_ind_b, KIND=wp ) / &
2082	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
2083	ENDDO
2084	ENDIF
2085	ENDIF
2086
2087	!
2088	!-- Initialize damping zone for the potential temperature in case of
2089	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
2090	!-- at the inflow boundary and decreases to zero at pt_damping_width.
2091	ptdf_x = 0.0_wp
2092	ptdf_y = 0.0_wp
2093	IF ( bc_lr_dirrad ) THEN
2094	DO i = nxl, nxr
2095	IF ( ( i * dx ) < pt_damping_width ) THEN
2096	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
2097	REAL( pt_damping_width - i * dx, KIND=wp ) / ( &
2098	REAL( pt_damping_width, KIND=wp ) ) ) )**2
2099	ENDIF
2100	ENDDO
2101	ELSEIF ( bc_lr_raddir ) THEN
2102	DO i = nxl, nxr
2103	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
2104	ptdf_x(i) = pt_damping_factor * &
2105	SIN( pi * 0.5_wp * &
2106	( ( i - nx ) * dx + pt_damping_width ) / &
2107	REAL( pt_damping_width, KIND=wp ) )**2
2108	ENDIF
2109	ENDDO
2110	ELSEIF ( bc_ns_dirrad ) THEN
2111	DO j = nys, nyn
2112	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
2113	ptdf_y(j) = pt_damping_factor * &
2114	SIN( pi * 0.5_wp * &
2115	( ( j - ny ) * dy + pt_damping_width ) / &
2116	REAL( pt_damping_width, KIND=wp ) )**2
2117	ENDIF
2118	ENDDO
2119	ELSEIF ( bc_ns_raddir ) THEN
2120	DO j = nys, nyn
2121	IF ( ( j * dy ) < pt_damping_width ) THEN
2122	ptdf_y(j) = pt_damping_factor * &
2123	SIN( pi * 0.5_wp * &
2124	( pt_damping_width - j * dy ) / &
2125	REAL( pt_damping_width, KIND=wp ) )**2
2126	ENDIF
2127	ENDDO
2128	ENDIF
2129
2130	!
2131	!-- Pre-set masks for regional statistics. Default is the total model domain.
2132	!-- Ghost points are excluded because counting values at the ghost boundaries
2133	!-- would bias the statistics
2134	rmask = 1.0_wp
2135	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
2136	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
2137
2138	!
2139	!-- User-defined initializing actions. Check afterwards, if maximum number
2140	!-- of allowed timeseries is exceeded
2141	CALL user_init
2142
2143	IF ( dots_num > dots_max ) THEN
2144	WRITE( message_string, * ) 'number of time series quantities exceeds', &
2145	' its maximum of dots_max = ', dots_max, &
2146	' &Please increase dots_max in modules.f90.'
2147	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
2148	ENDIF
2149
2150	!
2151	!-- Input binary data file is not needed anymore. This line must be placed
2152	!-- after call of user_init!
2153	CALL close_file( 13 )
2154
2155	!
2156	!-- Compute total sum of active mask grid points
2157	!-- and the mean surface level height for each statistic region
2158	!-- ngp_2dh: number of grid points of a horizontal cross section through the
2159	!-- total domain
2160	!-- ngp_3d: number of grid points of the total domain
2161	ngp_2dh_outer_l = 0
2162	ngp_2dh_outer = 0
2163	ngp_2dh_s_inner_l = 0
2164	ngp_2dh_s_inner = 0
2165	ngp_2dh_l = 0
2166	ngp_2dh = 0
2167	ngp_3d_inner_l = 0.0_wp
2168	ngp_3d_inner = 0
2169	ngp_3d = 0
2170	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
2171
2172	mean_surface_level_height = 0.0_wp
2173	mean_surface_level_height_l = 0.0_wp
2174
2175	DO sr = 0, statistic_regions
2176	DO i = nxl, nxr
2177	DO j = nys, nyn
2178	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
2179	!
2180	!-- All xy-grid points
2181	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
2182	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) &
2183	+ zw(nzb_s_inner(j,i))
2184	!
2185	!-- xy-grid points above topography
2186	DO k = nzb_s_outer(j,i), nz + 1
2187	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
2188	ENDDO
2189	DO k = nzb_s_inner(j,i), nz + 1
2190	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
2191	ENDDO
2192	!
2193	!-- All grid points of the total domain above topography
2194	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) &
2195	+ ( nz - nzb_s_inner(j,i) + 2 )
2196	ENDIF
2197	ENDDO
2198	ENDDO
2199	ENDDO
2200
2201	sr = statistic_regions + 1
2202	#if defined( __parallel )
2203	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2204	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
2205	comm2d, ierr )
2206	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2207	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
2208	MPI_INTEGER, MPI_SUM, comm2d, ierr )
2209	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2210	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
2211	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
2212	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2213	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
2214	MPI_SUM, comm2d, ierr )
2215	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
2216	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2217	CALL MPI_ALLREDUCE( mean_surface_level_height_l(0), &
2218	mean_surface_level_height(0), sr, MPI_REAL, &
2219	MPI_SUM, comm2d, ierr )
2220	mean_surface_level_height = mean_surface_level_height / REAL( ngp_2dh )
2221	#else
2222	ngp_2dh = ngp_2dh_l
2223	ngp_2dh_outer = ngp_2dh_outer_l
2224	ngp_2dh_s_inner = ngp_2dh_s_inner_l
2225	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
2226	mean_surface_level_height = mean_surface_level_height_l / REAL( ngp_2dh_l )
2227	#endif
2228
2229	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
2230	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
2231
2232	!
2233	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
2234	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
2235	!-- the respective subdomain lie below the surface topography
2236	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
2237	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
2238	ngp_3d_inner(:) )
2239	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
2240
2241	DEALLOCATE( mean_surface_level_height_l, ngp_2dh_l, ngp_2dh_outer_l, &
2242	ngp_3d_inner_l, ngp_3d_inner_tmp )
2243
2244	CALL location_message( 'leaving init_3d_model', .TRUE. )
2245
2246	END SUBROUTINE init_3d_model

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