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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1493

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

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