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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1683

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

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