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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1552

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

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