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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1551

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

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