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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1609

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

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