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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1916

Last change on this file since 1916 was 1914, checked in by witha, 9 years ago

Merged branch/forwind into trunk

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

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