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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1682

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

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