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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1357

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1	SUBROUTINE init_3d_model
2
3	!--------------------------------------------------------------------------------!
4	! This file is part of PALM.
5	!
6	! PALM is free software: you can redistribute it and/or modify it under the terms
7	! of the GNU General Public License as published by the Free Software Foundation,
8	! either version 3 of the License, or (at your option) any later version.
9	!
10	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
11	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
12	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
13	!
14	! You should have received a copy of the GNU General Public License along with
15	! PALM. If not, see <http://www.gnu.org/licenses/>.
16	!
17	! Copyright 1997-2014 Leibniz Universitaet Hannover
18	!--------------------------------------------------------------------------------!
19	!
20	! Current revisions:
21	! ------------------
22	!
23	!
24	! Former revisions:
25	! -----------------
26	! $Id: init_3d_model.f90 1354 2014-04-08 15:22:57Z witha $
27	!
28	! 1353 2014-04-08 15:21:23Z heinze
29	! REAL constants provided with KIND-attribute
30	!
31	! 1340 2014-03-25 19:45:13Z kanani
32	! REAL constants defined as wp-kind
33	!
34	! 1322 2014-03-20 16:38:49Z raasch
35	! REAL constants defined as wp-kind
36	! module interfaces removed
37	!
38	! 1320 2014-03-20 08:40:49Z raasch
39	! ONLY-attribute added to USE-statements,
40	! kind-parameters added to all INTEGER and REAL declaration statements,
41	! kinds are defined in new module kinds,
42	! revision history before 2012 removed,
43	! comment fields (!:) to be used for variable explanations added to
44	! all variable declaration statements
45	!
46	! 1316 2014-03-17 07:44:59Z heinze
47	! Bugfix: allocation of w_subs
48	!
49	! 1299 2014-03-06 13:15:21Z heinze
50	! Allocate w_subs due to extension of large scale subsidence in combination
51	! with large scale forcing data (LSF_DATA)
52	!
53	! 1241 2013-10-30 11:36:58Z heinze
54	! Overwrite initial profiles in case of nudging
55	! Inititialize shf and qsws in case of large_scale_forcing
56	!
57	! 1221 2013-09-10 08:59:13Z raasch
58	! +rflags_s_inner in copyin statement, use copyin for most arrays instead of
59	! copy
60	!
61	! 1212 2013-08-15 08:46:27Z raasch
62	! array tri is allocated and included in data copy statement
63	!
64	! 1195 2013-07-01 12:27:57Z heinze
65	! Bugfix: move allocation of ref_state to parin.f90 and read_var_list.f90
66	!
67	! 1179 2013-06-14 05:57:58Z raasch
68	! allocate and set ref_state to be used in buoyancy terms
69	!
70	! 1171 2013-05-30 11:27:45Z raasch
71	! diss array is allocated with full size if accelerator boards are used
72	!
73	! 1159 2013-05-21 11:58:22Z fricke
74	! -bc_lr_dirneu, bc_lr_neudir, bc_ns_dirneu, bc_ns_neudir
75	!
76	! 1153 2013-05-10 14:33:08Z raasch
77	! diss array is allocated with dummy elements even if it is not needed
78	! (required by PGI 13.4 / CUDA 5.0)
79	!
80	! 1115 2013-03-26 18:16:16Z hoffmann
81	! unused variables removed
82	!
83	! 1113 2013-03-10 02:48:14Z raasch
84	! openACC directive modified
85	!
86	! 1111 2013-03-08 23:54:10Z raasch
87	! openACC directives added for pres
88	! array diss allocated only if required
89	!
90	! 1092 2013-02-02 11:24:22Z raasch
91	! unused variables removed
92	!
93	! 1065 2012-11-22 17:42:36Z hoffmann
94	! allocation of diss (dissipation rate) in case of turbulence = .TRUE. added
95	!
96	! 1053 2012-11-13 17:11:03Z hoffmann
97	! allocation and initialisation of necessary data arrays for the two-moment
98	! cloud physics scheme the two new prognostic equations (nr, qr):
99	! +dr, lambda_r, mu_r, sed_, xr, s, sws, swst, , _p, t_m, _1, _2, _3,
100	! +tend_*, prr
101	!
102	! 1036 2012-10-22 13:43:42Z raasch
103	! code put under GPL (PALM 3.9)
104	!
105	! 1032 2012-10-21 13:03:21Z letzel
106	! save memory by not allocating pt_2 in case of neutral = .T.
107	!
108	! 1025 2012-10-07 16:04:41Z letzel
109	! bugfix: swap indices of mask for ghost boundaries
110	!
111	! 1015 2012-09-27 09:23:24Z raasch
112	! mask is set to zero for ghost boundaries
113	!
114	! 1010 2012-09-20 07:59:54Z raasch
115	! cpp switch __nopointer added for pointer free version
116	!
117	! 1003 2012-09-14 14:35:53Z raasch
118	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
119	!
120	! 1001 2012-09-13 14:08:46Z raasch
121	! all actions concerning leapfrog scheme removed
122	!
123	! 996 2012-09-07 10:41:47Z raasch
124	! little reformatting
125	!
126	! 978 2012-08-09 08:28:32Z fricke
127	! outflow damping layer removed
128	! roughness length for scalar quantites z0h added
129	! damping zone for the potential temperatur in case of non-cyclic lateral
130	! boundaries added
131	! initialization of ptdf_x, ptdf_y
132	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
133	!
134	! 849 2012-03-15 10:35:09Z raasch
135	! init_particles renamed lpm_init
136	!
137	! 825 2012-02-19 03:03:44Z raasch
138	! wang_collision_kernel renamed wang_kernel
139	!
140	! Revision 1.1 1998/03/09 16:22:22 raasch
141	! Initial revision
142	!
143	!
144	! Description:
145	! ------------
146	! Allocation of arrays and initialization of the 3D model via
147	! a) pre-run the 1D model
148	! or
149	! b) pre-set constant linear profiles
150	! or
151	! c) read values of a previous run
152	!------------------------------------------------------------------------------!
153
154	USE advec_ws
155
156	USE arrays_3d
157
158	USE cloud_parameters, &
159	ONLY: nc_const, precipitation_amount, precipitation_rate, prr
160
161	USE constants, &
162	ONLY: pi
163
164	USE control_parameters
165
166	USE grid_variables, &
167	ONLY: dx, dy
168
169	USE indices
170
171	USE kinds
172
173	USE ls_forcing_mod
174
175	USE model_1d, &
176	ONLY: e1d, kh1d, km1d, l1d, rif1d, u1d, us1d, usws1d, v1d, vsws1d
177
178	USE netcdf_control
179
180	USE particle_attributes, &
181	ONLY: particle_advection, use_sgs_for_particles, wang_kernel
182
183	USE pegrid
184
185	USE random_function_mod
186
187	USE statistics, &
188	ONLY: hom, hom_sum, pr_palm, rmask, spectrum_x, spectrum_y, &
189	statistic_regions, sums, sums_divnew_l, sums_divold_l, sums_l, &
190	sums_l_l, sums_up_fraction_l, sums_wsts_bc_l, ts_value, &
191	weight_pres, weight_substep
192
193	USE transpose_indices
194
195	IMPLICIT NONE
196
197	INTEGER(iwp) :: i !:
198	INTEGER(iwp) :: ind_array(1) !:
199	INTEGER(iwp) :: j !:
200	INTEGER(iwp) :: k !:
201	INTEGER(iwp) :: sr !:
202
203	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !:
204
205	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !:
206	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !:
207
208	REAL(wp), DIMENSION(1:2) :: volume_flow_area_l !:
209	REAL(wp), DIMENSION(1:2) :: volume_flow_initial_l !:
210
211	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !:
212	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !:
213
214
215	!
216	!-- Allocate arrays
217	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
218	ngp_3d(0:statistic_regions), &
219	ngp_3d_inner(0:statistic_regions), &
220	ngp_3d_inner_l(0:statistic_regions), &
221	ngp_3d_inner_tmp(0:statistic_regions), &
222	sums_divnew_l(0:statistic_regions), &
223	sums_divold_l(0:statistic_regions) )
224	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
225	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
226	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
227	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
228	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
229	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
230	sums(nzb:nzt+1,pr_palm+max_pr_user), &
231	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
232	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
233	sums_up_fraction_l(10,3,0:statistic_regions), &
234	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
235	ts_value(dots_max,0:statistic_regions) )
236	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
237
238	ALLOCATE( rif(nysg:nyng,nxlg:nxrg), shf(nysg:nyng,nxlg:nxrg), &
239	ts(nysg:nyng,nxlg:nxrg), tswst(nysg:nyng,nxlg:nxrg), &
240	us(nysg:nyng,nxlg:nxrg), usws(nysg:nyng,nxlg:nxrg), &
241	uswst(nysg:nyng,nxlg:nxrg), vsws(nysg:nyng,nxlg:nxrg), &
242	vswst(nysg:nyng,nxlg:nxrg), z0(nysg:nyng,nxlg:nxrg), &
243	z0h(nysg:nyng,nxlg:nxrg) )
244
245	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
246	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
247	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
248	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
249	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
250
251	#if defined( __nopointer )
252	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
253	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
254	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
255	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
256	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
257	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
258	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
259	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
260	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
261	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
262	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
263	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
264	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
265	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
266	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
267	#else
268	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
269	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
270	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
271	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
272	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
273	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
274	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
275	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
276	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
277	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
278	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
279	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
280	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
281	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
282	IF ( .NOT. neutral ) THEN
283	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
284	ENDIF
285	#endif
286
287	!
288	!-- Following array is required for perturbation pressure within the iterative
289	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
290	!-- the weighted average of the substeps and cannot be used in the Poisson
291	!-- solver.
292	IF ( psolver == 'sor' ) THEN
293	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
294	ELSEIF ( psolver == 'multigrid' ) THEN
295	!
296	!-- For performance reasons, multigrid is using one ghost layer only
297	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
298	ENDIF
299
300	!
301	!-- Array for storing constant coeffficients of the tridiagonal solver
302	IF ( psolver == 'poisfft' ) THEN
303	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
304	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
305	ENDIF
306
307	IF ( humidity .OR. passive_scalar ) THEN
308	!
309	!-- 2D-humidity/scalar arrays
310	ALLOCATE ( qs(nysg:nyng,nxlg:nxrg), &
311	qsws(nysg:nyng,nxlg:nxrg), &
312	qswst(nysg:nyng,nxlg:nxrg) )
313
314	!
315	!-- 3D-humidity/scalar arrays
316	#if defined( __nopointer )
317	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
318	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
319	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
320	#else
321	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
322	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
323	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
324	#endif
325
326	!
327	!-- 3D-arrays needed for humidity only
328	IF ( humidity ) THEN
329	#if defined( __nopointer )
330	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
331	#else
332	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
333	#endif
334
335	IF ( cloud_physics ) THEN
336
337	!
338	!-- Liquid water content
339	#if defined( __nopointer )
340	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
341	#else
342	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
343	#endif
344	!
345	!-- Precipitation amount and rate (only needed if output is switched)
346	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
347	precipitation_rate(nysg:nyng,nxlg:nxrg) )
348
349	IF ( icloud_scheme == 0 ) THEN
350	!
351	!-- 1D-arrays
352	ALLOCATE ( nc_1d(nzb:nzt+1), pt_1d(nzb:nzt+1), &
353	q_1d(nzb:nzt+1), qc_1d(nzb:nzt+1) )
354	!
355	!-- 3D-cloud water content
356	#if defined( __nopointer )
357	ALLOCATE( qc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
358	#else
359	ALLOCATE( qc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
360	#endif
361	!
362	!-- 3D-tendency arrays
363	ALLOCATE( tend_pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
364	tend_q(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
365
366	IF ( precipitation ) THEN
367	!
368	!-- 1D-arrays
369	ALLOCATE ( nr_1d(nzb:nzt+1), qr_1d(nzb:nzt+1) )
370	!
371	!
372	!-- 3D-tendency arrays
373	ALLOCATE( tend_nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
374	tend_qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
375	!
376	!-- 2D-rain water content and rain drop concentration arrays
377	ALLOCATE ( qrs(nysg:nyng,nxlg:nxrg), &
378	qrsws(nysg:nyng,nxlg:nxrg), &
379	qrswst(nysg:nyng,nxlg:nxrg), &
380	nrs(nysg:nyng,nxlg:nxrg), &
381	nrsws(nysg:nyng,nxlg:nxrg), &
382	nrswst(nysg:nyng,nxlg:nxrg) )
383	!
384	!-- 3D-rain water content, rain drop concentration arrays
385	#if defined( __nopointer )
386	ALLOCATE( nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
387	nr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
388	qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
389	qr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
390	tnr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
391	tqr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
392	#else
393	ALLOCATE( nr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
394	nr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
395	nr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
396	qr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
397	qr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
398	qr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
399	#endif
400	!
401	!-- 3d-precipitation rate
402	ALLOCATE( prr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
403	ENDIF
404
405	ENDIF
406	ENDIF
407
408	IF ( cloud_droplets ) THEN
409	!
410	!-- Liquid water content, change in liquid water content
411	#if defined( __nopointer )
412	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
413	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
414	#else
415	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
416	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
417	#endif
418	!
419	!-- Real volume of particles (with weighting), volume of particles
420	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
421	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
422	ENDIF
423
424	ENDIF
425
426	ENDIF
427
428	IF ( ocean ) THEN
429	ALLOCATE( saswsb(nysg:nyng,nxlg:nxrg), &
430	saswst(nysg:nyng,nxlg:nxrg) )
431	#if defined( __nopointer )
432	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
433	rho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
434	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
435	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
436	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
437	#else
438	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
439	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
440	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
441	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
442	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
443	prho => prho_1
444	rho => rho_1 ! routines calc_mean_profile and diffusion_e require
445	! density to be apointer
446	#endif
447	IF ( humidity_remote ) THEN
448	ALLOCATE( qswst_remote(nysg:nyng,nxlg:nxrg))
449	qswst_remote = 0.0_wp
450	ENDIF
451	ENDIF
452
453	!
454	!-- 3D-array for storing the dissipation, needed for calculating the sgs
455	!-- particle velocities
456	IF ( use_sgs_for_particles .OR. wang_kernel .OR. turbulence .OR. &
457	num_acc_per_node > 0 ) THEN
458	ALLOCATE( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
459	ENDIF
460
461	IF ( dt_dosp /= 9999999.9_wp ) THEN
462	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
463	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
464	spectrum_x = 0.0_wp
465	spectrum_y = 0.0_wp
466	ENDIF
467
468	!
469	!-- 1D-array for large scale subsidence velocity
470	ALLOCATE ( w_subs(nzb:nzt+1) )
471	w_subs = 0.0_wp
472
473
474	!
475	!-- 3D-arrays for the leaf area density and the canopy drag coefficient
476	IF ( plant_canopy ) THEN
477	ALLOCATE ( lad_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
478	lad_u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
479	lad_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
480	lad_w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
481	cdc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
482
483	IF ( passive_scalar ) THEN
484	ALLOCATE ( sls(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
485	sec(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
486	ENDIF
487
488	IF ( cthf /= 0.0_wp ) THEN
489	ALLOCATE ( lai(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
490	canopy_heat_flux(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
491	ENDIF
492
493	ENDIF
494
495	!
496	!-- 4D-array for storing the Rif-values at vertical walls
497	IF ( topography /= 'flat' ) THEN
498	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
499	rif_wall = 0.0_wp
500	ENDIF
501
502	!
503	!-- Arrays to store velocity data from t-dt and the phase speeds which
504	!-- are needed for radiation boundary conditions
505	IF ( outflow_l ) THEN
506	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
507	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
508	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
509	ENDIF
510	IF ( outflow_r ) THEN
511	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
512	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
513	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
514	ENDIF
515	IF ( outflow_l .OR. outflow_r ) THEN
516	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
517	c_w(nzb:nzt+1,nysg:nyng) )
518	ENDIF
519	IF ( outflow_s ) THEN
520	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
521	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
522	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
523	ENDIF
524	IF ( outflow_n ) THEN
525	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
526	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
527	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
528	ENDIF
529	IF ( outflow_s .OR. outflow_n ) THEN
530	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
531	c_w(nzb:nzt+1,nxlg:nxrg) )
532	ENDIF
533	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
534	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
535	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
536	ENDIF
537
538
539	#if ! defined( __nopointer )
540	!
541	!-- Initial assignment of the pointers
542	e => e_1; e_p => e_2; te_m => e_3
543	IF ( .NOT. neutral ) THEN
544	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
545	ELSE
546	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
547	ENDIF
548	u => u_1; u_p => u_2; tu_m => u_3
549	v => v_1; v_p => v_2; tv_m => v_3
550	w => w_1; w_p => w_2; tw_m => w_3
551
552	IF ( humidity .OR. passive_scalar ) THEN
553	q => q_1; q_p => q_2; tq_m => q_3
554	IF ( humidity ) THEN
555	vpt => vpt_1
556	IF ( cloud_physics ) THEN
557	ql => ql_1
558	IF ( icloud_scheme == 0 ) THEN
559	qc => qc_1
560	IF ( precipitation ) THEN
561	qr => qr_1; qr_p => qr_2; tqr_m => qr_3
562	nr => nr_1; nr_p => nr_2; tnr_m => nr_3
563	ENDIF
564	ENDIF
565	ENDIF
566	ENDIF
567	IF ( cloud_droplets ) THEN
568	ql => ql_1
569	ql_c => ql_2
570	ENDIF
571	ENDIF
572
573	IF ( ocean ) THEN
574	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
575	ENDIF
576	#endif
577
578	!
579	!-- Allocate arrays containing the RK coefficient for calculation of
580	!-- perturbation pressure and turbulent fluxes. At this point values are
581	!-- set for pressure calculation during initialization (where no timestep
582	!-- is done). Further below the values needed within the timestep scheme
583	!-- will be set.
584	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
585	weight_pres(1:intermediate_timestep_count_max) )
586	weight_substep = 1.0_wp
587	weight_pres = 1.0_wp
588	intermediate_timestep_count = 1 ! needed when simulated_time = 0.0
589
590	!
591	!-- Initialize model variables
592	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
593	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
594	!
595	!-- First model run of a possible job queue.
596	!-- Initial profiles of the variables must be computes.
597	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
598	!
599	!-- Use solutions of the 1D model as initial profiles,
600	!-- start 1D model
601	CALL init_1d_model
602	!
603	!-- Transfer initial profiles to the arrays of the 3D model
604	DO i = nxlg, nxrg
605	DO j = nysg, nyng
606	e(:,j,i) = e1d
607	kh(:,j,i) = kh1d
608	km(:,j,i) = km1d
609	pt(:,j,i) = pt_init
610	u(:,j,i) = u1d
611	v(:,j,i) = v1d
612	ENDDO
613	ENDDO
614
615	IF ( humidity .OR. passive_scalar ) THEN
616	DO i = nxlg, nxrg
617	DO j = nysg, nyng
618	q(:,j,i) = q_init
619	ENDDO
620	ENDDO
621	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
622	precipitation ) THEN
623	DO i = nxlg, nxrg
624	DO j = nysg, nyng
625	qr(:,j,i) = 0.0_wp
626	nr(:,j,i) = 0.0_wp
627	ENDDO
628	ENDDO
629	!
630	!-- Initialze nc_1d with default value
631	nc_1d(:) = nc_const
632
633	ENDIF
634	ENDIF
635
636	IF ( .NOT. constant_diffusion ) THEN
637	DO i = nxlg, nxrg
638	DO j = nysg, nyng
639	e(:,j,i) = e1d
640	ENDDO
641	ENDDO
642	!
643	!-- Store initial profiles for output purposes etc.
644	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
645
646	IF ( prandtl_layer ) THEN
647	rif = rif1d(nzb+1)
648	ts = 0.0_wp ! could actually be computed more accurately in the
649	! 1D model. Update when opportunity arises.
650	us = us1d
651	usws = usws1d
652	vsws = vsws1d
653	ELSE
654	ts = 0.0_wp ! must be set, because used in
655	rif = 0.0_wp ! flowste
656	us = 0.0_wp
657	usws = 0.0_wp
658	vsws = 0.0_wp
659	ENDIF
660
661	ELSE
662	e = 0.0_wp ! must be set, because used in
663	rif = 0.0_wp ! flowste
664	ts = 0.0_wp
665	us = 0.0_wp
666	usws = 0.0_wp
667	vsws = 0.0_wp
668	ENDIF
669	uswst = top_momentumflux_u
670	vswst = top_momentumflux_v
671
672	!
673	!-- In every case qs = 0.0 (see also pt)
674	!-- This could actually be computed more accurately in the 1D model.
675	!-- Update when opportunity arises!
676	IF ( humidity .OR. passive_scalar ) THEN
677	qs = 0.0_wp
678	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
679	precipitation ) THEN
680	qrs = 0.0_wp
681	nrs = 0.0_wp
682	ENDIF
683	ENDIF
684
685	!
686	!-- inside buildings set velocities back to zero
687	IF ( topography /= 'flat' ) THEN
688	DO i = nxl-1, nxr+1
689	DO j = nys-1, nyn+1
690	u(nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
691	v(nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
692	ENDDO
693	ENDDO
694
695	!
696	!-- WARNING: The extra boundary conditions set after running the
697	!-- ------- 1D model impose an error on the divergence one layer
698	!-- below the topography; need to correct later
699	!-- ATTENTION: Provisional correction for Piacsek & Williams
700	!-- --------- advection scheme: keep u and v zero one layer below
701	!-- the topography.
702	IF ( ibc_uv_b == 1 ) THEN
703	!
704	!-- Neumann condition
705	DO i = nxl-1, nxr+1
706	DO j = nys-1, nyn+1
707	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
708	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
709	ENDDO
710	ENDDO
711
712	ENDIF
713
714	ENDIF
715
716	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
717	THEN
718
719	!
720	!-- Overwrite initial profiles in case of nudging
721	IF ( nudging ) THEN
722	pt_init = ptnudge(:,1)
723	u_init = unudge(:,1)
724	v_init = vnudge(:,1)
725	IF ( humidity .OR. passive_scalar ) THEN
726	q_init = qnudge(:,1)
727	ENDIF
728
729	WRITE( message_string, * ) 'Initial profiles of u, v and ', &
730	'scalars from NUDGING_DATA are used.'
731	CALL message( 'init_3d_model', 'PA0370', 0, 0, 0, 6, 0 )
732	ENDIF
733
734	!
735	!-- Use constructed initial profiles (velocity constant with height,
736	!-- temperature profile with constant gradient)
737	DO i = nxlg, nxrg
738	DO j = nysg, nyng
739	pt(:,j,i) = pt_init
740	u(:,j,i) = u_init
741	v(:,j,i) = v_init
742	ENDDO
743	ENDDO
744
745	!
746	!-- Set initial horizontal velocities at the lowest computational grid
747	!-- levels to zero in order to avoid too small time steps caused by the
748	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
749	!-- in the limiting formula!). The original values are stored to be later
750	!-- used for volume flow control.
751	DO i = nxlg, nxrg
752	DO j = nysg, nyng
753	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0_wp
754	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0_wp
755	ENDDO
756	ENDDO
757
758	IF ( humidity .OR. passive_scalar ) THEN
759	DO i = nxlg, nxrg
760	DO j = nysg, nyng
761	q(:,j,i) = q_init
762	ENDDO
763	ENDDO
764	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
765	!
766	!-- Initialze nc_1d with default value
767	nc_1d(:) = nc_const
768
769	IF ( precipitation ) THEN
770	DO i = nxlg, nxrg
771	DO j = nysg, nyng
772	qr(:,j,i) = 0.0_wp
773	nr(:,j,i) = 0.0_wp
774	ENDDO
775	ENDDO
776	ENDIF
777
778	ENDIF
779	ENDIF
780
781	IF ( ocean ) THEN
782	DO i = nxlg, nxrg
783	DO j = nysg, nyng
784	sa(:,j,i) = sa_init
785	ENDDO
786	ENDDO
787	ENDIF
788
789	IF ( constant_diffusion ) THEN
790	km = km_constant
791	kh = km / prandtl_number
792	e = 0.0_wp
793	ELSEIF ( e_init > 0.0_wp ) THEN
794	DO k = nzb+1, nzt
795	km(k,:,:) = 0.1_wp * l_grid(k) * SQRT( e_init )
796	ENDDO
797	km(nzb,:,:) = km(nzb+1,:,:)
798	km(nzt+1,:,:) = km(nzt,:,:)
799	kh = km / prandtl_number
800	e = e_init
801	ELSE
802	IF ( .NOT. ocean ) THEN
803	kh = 0.01_wp ! there must exist an initial diffusion, because
804	km = 0.01_wp ! otherwise no TKE would be produced by the
805	! production terms, as long as not yet
806	! e = (u/cm)*2 at k=nzb+1
807	ELSE
808	kh = 0.00001_wp
809	km = 0.00001_wp
810	ENDIF
811	e = 0.0_wp
812	ENDIF
813	rif = 0.0_wp
814	ts = 0.0_wp
815	us = 0.0_wp
816	usws = 0.0_wp
817	uswst = top_momentumflux_u
818	vsws = 0.0_wp
819	vswst = top_momentumflux_v
820	IF ( humidity .OR. passive_scalar ) qs = 0.0_wp
821
822	!
823	!-- Compute initial temperature field and other constants used in case
824	!-- of a sloping surface
825	IF ( sloping_surface ) CALL init_slope
826
827	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
828	THEN
829	!
830	!-- Initialization will completely be done by the user
831	CALL user_init_3d_model
832
833	ENDIF
834	!
835	!-- Bottom boundary
836	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
837	u(nzb,:,:) = 0.0_wp
838	v(nzb,:,:) = 0.0_wp
839	ENDIF
840
841	!
842	!-- Apply channel flow boundary condition
843	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
844	u(nzt+1,:,:) = 0.0_wp
845	v(nzt+1,:,:) = 0.0_wp
846	ENDIF
847
848	!
849	!-- Calculate virtual potential temperature
850	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
851
852	!
853	!-- Store initial profiles for output purposes etc.
854	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
855	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
856	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
857	hom(nzb,1,5,:) = 0.0_wp
858	hom(nzb,1,6,:) = 0.0_wp
859	ENDIF
860	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
861	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
862	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
863
864	IF ( ocean ) THEN
865	!
866	!-- Store initial salinity profile
867	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
868	ENDIF
869
870	IF ( humidity ) THEN
871	!
872	!-- Store initial profile of total water content, virtual potential
873	!-- temperature
874	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
875	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
876	IF ( cloud_physics .OR. cloud_droplets ) THEN
877	!
878	!-- Store initial profile of specific humidity and potential
879	!-- temperature
880	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
881	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
882	ENDIF
883	ENDIF
884
885	IF ( passive_scalar ) THEN
886	!
887	!-- Store initial scalar profile
888	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
889	ENDIF
890
891	!
892	!-- Initialize fluxes at bottom surface
893	IF ( use_surface_fluxes ) THEN
894
895	IF ( constant_heatflux ) THEN
896	!
897	!-- Heat flux is prescribed
898	IF ( random_heatflux ) THEN
899	CALL disturb_heatflux
900	ELSE
901	shf = surface_heatflux
902	!
903	!-- Initialize shf with data from external file LSF_DATA
904	IF ( large_scale_forcing .AND. lsf_surf ) THEN
905	CALL ls_forcing_surf ( simulated_time )
906	ENDIF
907
908	!
909	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
910	IF ( TRIM( topography ) /= 'flat' ) THEN
911	DO i = nxlg, nxrg
912	DO j = nysg, nyng
913	IF ( nzb_s_inner(j,i) /= 0 ) THEN
914	shf(j,i) = wall_heatflux(0)
915	ENDIF
916	ENDDO
917	ENDDO
918	ENDIF
919	ENDIF
920	ENDIF
921
922	!
923	!-- Determine the near-surface water flux
924	IF ( humidity .OR. passive_scalar ) THEN
925	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
926	precipitation ) THEN
927	qrsws = 0.0_wp
928	nrsws = 0.0_wp
929	ENDIF
930	IF ( constant_waterflux ) THEN
931	qsws = surface_waterflux
932	!
933	!-- Over topography surface_waterflux is replaced by
934	!-- wall_humidityflux(0)
935	IF ( TRIM( topography ) /= 'flat' ) THEN
936	wall_qflux = wall_humidityflux
937	DO i = nxlg, nxrg
938	DO j = nysg, nyng
939	IF ( nzb_s_inner(j,i) /= 0 ) THEN
940	qsws(j,i) = wall_qflux(0)
941	ENDIF
942	ENDDO
943	ENDDO
944	ENDIF
945	ENDIF
946	ENDIF
947
948	ENDIF
949
950	!
951	!-- Initialize fluxes at top surface
952	!-- Currently, only the heatflux and salinity flux can be prescribed.
953	!-- The latent flux is zero in this case!
954	IF ( use_top_fluxes ) THEN
955
956	IF ( constant_top_heatflux ) THEN
957	!
958	!-- Heat flux is prescribed
959	tswst = top_heatflux
960
961	IF ( humidity .OR. passive_scalar ) THEN
962	qswst = 0.0_wp
963	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
964	precipitation ) THEN
965	nrswst = 0.0_wp
966	qrswst = 0.0_wp
967	ENDIF
968	ENDIF
969
970	IF ( ocean ) THEN
971	saswsb = bottom_salinityflux
972	saswst = top_salinityflux
973	ENDIF
974	ENDIF
975
976	!
977	!-- Initialization in case of a coupled model run
978	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
979	tswst = 0.0_wp
980	ENDIF
981
982	ENDIF
983
984	!
985	!-- Initialize Prandtl layer quantities
986	IF ( prandtl_layer ) THEN
987
988	z0 = roughness_length
989	z0h = z0h_factor * z0
990
991	IF ( .NOT. constant_heatflux ) THEN
992	!
993	!-- Surface temperature is prescribed. Here the heat flux cannot be
994	!-- simply estimated, because therefore rif, u* and theta* would have
995	!-- to be computed by iteration. This is why the heat flux is assumed
996	!-- to be zero before the first time step. It approaches its correct
997	!-- value in the course of the first few time steps.
998	shf = 0.0_wp
999	ENDIF
1000
1001	IF ( humidity .OR. passive_scalar ) THEN
1002	IF ( .NOT. constant_waterflux ) qsws = 0.0_wp
1003	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1004	precipitation ) THEN
1005	qrsws = 0.0_wp
1006	nrsws = 0.0_wp
1007	ENDIF
1008	ENDIF
1009
1010	ENDIF
1011
1012	!
1013	!-- Set the reference state to be used in the buoyancy terms (for ocean runs
1014	!-- the reference state will be set (overwritten) in init_ocean)
1015	IF ( use_single_reference_value ) THEN
1016	IF ( .NOT. humidity ) THEN
1017	ref_state(:) = pt_reference
1018	ELSE
1019	ref_state(:) = vpt_reference
1020	ENDIF
1021	ELSE
1022	IF ( .NOT. humidity ) THEN
1023	ref_state(:) = pt_init(:)
1024	ELSE
1025	ref_state(:) = vpt(:,nys,nxl)
1026	ENDIF
1027	ENDIF
1028
1029	!
1030	!-- For the moment, vertical velocity is zero
1031	w = 0.0_wp
1032
1033	!
1034	!-- Initialize array sums (must be defined in first call of pres)
1035	sums = 0.0_wp
1036
1037	!
1038	!-- In case of iterative solvers, p must get an initial value
1039	IF ( psolver == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
1040
1041	!
1042	!-- Treating cloud physics, liquid water content and precipitation amount
1043	!-- are zero at beginning of the simulation
1044	IF ( cloud_physics ) THEN
1045	ql = 0.0_wp
1046	IF ( precipitation ) precipitation_amount = 0.0_wp
1047	IF ( icloud_scheme == 0 ) THEN
1048	qc = 0.0_wp
1049	nc_1d = nc_const
1050	ENDIF
1051	ENDIF
1052	!
1053	!-- Impose vortex with vertical axis on the initial velocity profile
1054	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
1055	CALL init_rankine
1056	ENDIF
1057
1058	!
1059	!-- Impose temperature anomaly (advection test only)
1060	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
1061	CALL init_pt_anomaly
1062	ENDIF
1063
1064	!
1065	!-- If required, change the surface temperature at the start of the 3D run
1066	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
1067	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
1068	ENDIF
1069
1070	!
1071	!-- If required, change the surface humidity/scalar at the start of the 3D
1072	!-- run
1073	IF ( ( humidity .OR. passive_scalar ) .AND. &
1074	q_surface_initial_change /= 0.0_wp ) THEN
1075	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
1076	ENDIF
1077	!
1078	!-- Initialize the random number generator (from numerical recipes)
1079	CALL random_function_ini
1080
1081	!
1082	!-- Initialize old and new time levels.
1083	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
1084	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1085
1086	IF ( humidity .OR. passive_scalar ) THEN
1087	tq_m = 0.0_wp
1088	q_p = q
1089	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1090	precipitation ) THEN
1091	tqr_m = 0.0_wp
1092	qr_p = qr
1093	tnr_m = 0.0_wp
1094	nr_p = nr
1095	ENDIF
1096	ENDIF
1097
1098	IF ( ocean ) THEN
1099	tsa_m = 0.0_wp
1100	sa_p = sa
1101	ENDIF
1102
1103
1104	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
1105	TRIM( initializing_actions ) == 'cyclic_fill' ) &
1106	THEN
1107	!
1108	!-- When reading data for cyclic fill of 3D prerun data files, read
1109	!-- some of the global variables from the restart file which are required
1110	!-- for initializing the inflow
1111	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1112
1113	DO i = 0, io_blocks-1
1114	IF ( i == io_group ) THEN
1115	CALL read_parts_of_var_list
1116	CALL close_file( 13 )
1117	ENDIF
1118	#if defined( __parallel )
1119	CALL MPI_BARRIER( comm2d, ierr )
1120	#endif
1121	ENDDO
1122
1123	ENDIF
1124
1125	!
1126	!-- Read binary data from restart file
1127	DO i = 0, io_blocks-1
1128	IF ( i == io_group ) THEN
1129	CALL read_3d_binary
1130	ENDIF
1131	#if defined( __parallel )
1132	CALL MPI_BARRIER( comm2d, ierr )
1133	#endif
1134	ENDDO
1135
1136	!
1137	!-- Initialization of the turbulence recycling method
1138	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1139	turbulent_inflow ) THEN
1140	!
1141	!-- First store the profiles to be used at the inflow.
1142	!-- These profiles are the (temporally) and horizontally averaged vertical
1143	!-- profiles from the prerun. Alternatively, prescribed profiles
1144	!-- for u,v-components can be used.
1145	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,5) )
1146
1147	IF ( use_prescribed_profile_data ) THEN
1148	mean_inflow_profiles(:,1) = u_init ! u
1149	mean_inflow_profiles(:,2) = v_init ! v
1150	ELSE
1151	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
1152	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
1153	ENDIF
1154	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
1155	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
1156
1157	!
1158	!-- If necessary, adjust the horizontal flow field to the prescribed
1159	!-- profiles
1160	IF ( use_prescribed_profile_data ) THEN
1161	DO i = nxlg, nxrg
1162	DO j = nysg, nyng
1163	DO k = nzb, nzt+1
1164	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
1165	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
1166	ENDDO
1167	ENDDO
1168	ENDDO
1169	ENDIF
1170
1171	!
1172	!-- Use these mean profiles at the inflow (provided that Dirichlet
1173	!-- conditions are used)
1174	IF ( inflow_l ) THEN
1175	DO j = nysg, nyng
1176	DO k = nzb, nzt+1
1177	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
1178	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
1179	w(k,j,nxlg:-1) = 0.0_wp
1180	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
1181	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
1182	ENDDO
1183	ENDDO
1184	ENDIF
1185
1186	!
1187	!-- Calculate the damping factors to be used at the inflow. For a
1188	!-- turbulent inflow the turbulent fluctuations have to be limited
1189	!-- vertically because otherwise the turbulent inflow layer will grow
1190	!-- in time.
1191	IF ( inflow_damping_height == 9999999.9_wp ) THEN
1192	!
1193	!-- Default: use the inversion height calculated by the prerun; if
1194	!-- this is zero, inflow_damping_height must be explicitly
1195	!-- specified.
1196	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
1197	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
1198	ELSE
1199	WRITE( message_string, * ) 'inflow_damping_height must be ',&
1200	'explicitly specified because&the inversion height ', &
1201	'calculated by the prerun is zero.'
1202	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
1203	ENDIF
1204
1205	ENDIF
1206
1207	IF ( inflow_damping_width == 9999999.9_wp ) THEN
1208	!
1209	!-- Default for the transition range: one tenth of the undamped
1210	!-- layer
1211	inflow_damping_width = 0.1_wp * inflow_damping_height
1212
1213	ENDIF
1214
1215	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
1216
1217	DO k = nzb, nzt+1
1218
1219	IF ( zu(k) <= inflow_damping_height ) THEN
1220	inflow_damping_factor(k) = 1.0_wp
1221	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
1222	inflow_damping_factor(k) = 1.0_wp - &
1223	( zu(k) - inflow_damping_height ) / &
1224	inflow_damping_width
1225	ELSE
1226	inflow_damping_factor(k) = 0.0_wp
1227	ENDIF
1228
1229	ENDDO
1230
1231	ENDIF
1232
1233	!
1234	!-- Inside buildings set velocities and TKE back to zero
1235	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1236	topography /= 'flat' ) THEN
1237	!
1238	!-- Inside buildings set velocities and TKE back to zero.
1239	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
1240	!-- maybe revise later.
1241	DO i = nxlg, nxrg
1242	DO j = nysg, nyng
1243	u (nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
1244	v (nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
1245	w (nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1246	e (nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1247	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
1248	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
1249	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1250	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1251	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1252	ENDDO
1253	ENDDO
1254
1255	ENDIF
1256
1257	!
1258	!-- Calculate initial temperature field and other constants used in case
1259	!-- of a sloping surface
1260	IF ( sloping_surface ) CALL init_slope
1261
1262	!
1263	!-- Initialize new time levels (only done in order to set boundary values
1264	!-- including ghost points)
1265	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1266	IF ( humidity .OR. passive_scalar ) THEN
1267	q_p = q
1268	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1269	precipitation ) THEN
1270	qr_p = qr
1271	nr_p = nr
1272	ENDIF
1273	ENDIF
1274	IF ( ocean ) sa_p = sa
1275
1276	!
1277	!-- Allthough tendency arrays are set in prognostic_equations, they have
1278	!-- have to be predefined here because they are used (but multiplied with 0)
1279	!-- there before they are set.
1280	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
1281	IF ( humidity .OR. passive_scalar ) THEN
1282	tq_m = 0.0_wp
1283	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1284	precipitation ) THEN
1285	tqr_m = 0.0_wp
1286	tnr_m = 0.0_wp
1287	ENDIF
1288	ENDIF
1289	IF ( ocean ) tsa_m = 0.0_wp
1290
1291	ELSE
1292	!
1293	!-- Actually this part of the programm should not be reached
1294	message_string = 'unknown initializing problem'
1295	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
1296	ENDIF
1297
1298
1299	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1300	!
1301	!-- Initialize old timelevels needed for radiation boundary conditions
1302	IF ( outflow_l ) THEN
1303	u_m_l(:,:,:) = u(:,:,1:2)
1304	v_m_l(:,:,:) = v(:,:,0:1)
1305	w_m_l(:,:,:) = w(:,:,0:1)
1306	ENDIF
1307	IF ( outflow_r ) THEN
1308	u_m_r(:,:,:) = u(:,:,nx-1:nx)
1309	v_m_r(:,:,:) = v(:,:,nx-1:nx)
1310	w_m_r(:,:,:) = w(:,:,nx-1:nx)
1311	ENDIF
1312	IF ( outflow_s ) THEN
1313	u_m_s(:,:,:) = u(:,0:1,:)
1314	v_m_s(:,:,:) = v(:,1:2,:)
1315	w_m_s(:,:,:) = w(:,0:1,:)
1316	ENDIF
1317	IF ( outflow_n ) THEN
1318	u_m_n(:,:,:) = u(:,ny-1:ny,:)
1319	v_m_n(:,:,:) = v(:,ny-1:ny,:)
1320	w_m_n(:,:,:) = w(:,ny-1:ny,:)
1321	ENDIF
1322
1323	ENDIF
1324
1325	!
1326	!-- Calculate the initial volume flow at the right and north boundary
1327	IF ( conserve_volume_flow ) THEN
1328
1329	IF ( use_prescribed_profile_data ) THEN
1330
1331	volume_flow_initial_l = 0.0_wp
1332	volume_flow_area_l = 0.0_wp
1333
1334	IF ( nxr == nx ) THEN
1335	DO j = nys, nyn
1336	DO k = nzb_2d(j,nx)+1, nzt
1337	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1338	u_init(k) * dzw(k)
1339	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1340	ENDDO
1341	ENDDO
1342	ENDIF
1343
1344	IF ( nyn == ny ) THEN
1345	DO i = nxl, nxr
1346	DO k = nzb_2d(ny,i)+1, nzt
1347	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1348	v_init(k) * dzw(k)
1349	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1350	ENDDO
1351	ENDDO
1352	ENDIF
1353
1354	#if defined( __parallel )
1355	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1356	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1357	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1358	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1359
1360	#else
1361	volume_flow_initial = volume_flow_initial_l
1362	volume_flow_area = volume_flow_area_l
1363	#endif
1364
1365	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1366
1367	volume_flow_initial_l = 0.0_wp
1368	volume_flow_area_l = 0.0_wp
1369
1370	IF ( nxr == nx ) THEN
1371	DO j = nys, nyn
1372	DO k = nzb_2d(j,nx)+1, nzt
1373	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1374	hom_sum(k,1,0) * dzw(k)
1375	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1376	ENDDO
1377	ENDDO
1378	ENDIF
1379
1380	IF ( nyn == ny ) THEN
1381	DO i = nxl, nxr
1382	DO k = nzb_2d(ny,i)+1, nzt
1383	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1384	hom_sum(k,2,0) * dzw(k)
1385	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1386	ENDDO
1387	ENDDO
1388	ENDIF
1389
1390	#if defined( __parallel )
1391	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1392	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1393	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1394	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1395
1396	#else
1397	volume_flow_initial = volume_flow_initial_l
1398	volume_flow_area = volume_flow_area_l
1399	#endif
1400
1401	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1402
1403	volume_flow_initial_l = 0.0_wp
1404	volume_flow_area_l = 0.0_wp
1405
1406	IF ( nxr == nx ) THEN
1407	DO j = nys, nyn
1408	DO k = nzb_2d(j,nx)+1, nzt
1409	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1410	u(k,j,nx) * dzw(k)
1411	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1412	ENDDO
1413	ENDDO
1414	ENDIF
1415
1416	IF ( nyn == ny ) THEN
1417	DO i = nxl, nxr
1418	DO k = nzb_2d(ny,i)+1, nzt
1419	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1420	v(k,ny,i) * dzw(k)
1421	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1422	ENDDO
1423	ENDDO
1424	ENDIF
1425
1426	#if defined( __parallel )
1427	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1428	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1429	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1430	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1431
1432	#else
1433	volume_flow_initial = volume_flow_initial_l
1434	volume_flow_area = volume_flow_area_l
1435	#endif
1436
1437	ENDIF
1438
1439	!
1440	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
1441	!-- from u\|v_bulk instead
1442	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
1443	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
1444	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
1445	ENDIF
1446
1447	ENDIF
1448
1449	!
1450	!-- Initialize quantities for special advections schemes
1451	CALL init_advec
1452
1453	!
1454	!-- Impose random perturbation on the horizontal velocity field and then
1455	!-- remove the divergences from the velocity field at the initial stage
1456	IF ( create_disturbances .AND. &
1457	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1458	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1459
1460	CALL disturb_field( nzb_u_inner, tend, u )
1461	CALL disturb_field( nzb_v_inner, tend, v )
1462	n_sor = nsor_ini
1463	!$acc data copyin( d, ddzu, ddzw, nzb_s_inner, nzb_u_inner ) &
1464	!$acc copyin( nzb_v_inner, nzb_w_inner, p, rflags_s_inner, tend ) &
1465	!$acc copyin( weight_pres, weight_substep ) &
1466	!$acc copy( tri, tric, u, v, w )
1467	CALL pres
1468	!$acc end data
1469	n_sor = nsor
1470	ENDIF
1471
1472	!
1473	!-- Initialization of the leaf area density
1474	IF ( plant_canopy ) THEN
1475
1476	SELECT CASE ( TRIM( canopy_mode ) )
1477
1478	CASE( 'block' )
1479
1480	DO i = nxlg, nxrg
1481	DO j = nysg, nyng
1482	lad_s(:,j,i) = lad(:)
1483	cdc(:,j,i) = drag_coefficient
1484	IF ( passive_scalar ) THEN
1485	sls(:,j,i) = leaf_surface_concentration
1486	sec(:,j,i) = scalar_exchange_coefficient
1487	ENDIF
1488	ENDDO
1489	ENDDO
1490
1491	CASE DEFAULT
1492
1493	!
1494	!-- The DEFAULT case is reached either if the parameter
1495	!-- canopy mode contains a wrong character string or if the
1496	!-- user has coded a special case in the user interface.
1497	!-- There, the subroutine user_init_plant_canopy checks
1498	!-- which of these two conditions applies.
1499	CALL user_init_plant_canopy
1500
1501	END SELECT
1502
1503	CALL exchange_horiz( lad_s, nbgp )
1504	CALL exchange_horiz( cdc, nbgp )
1505
1506	IF ( passive_scalar ) THEN
1507	CALL exchange_horiz( sls, nbgp )
1508	CALL exchange_horiz( sec, nbgp )
1509	ENDIF
1510
1511	!
1512	!-- Sharp boundaries of the plant canopy in horizontal directions
1513	!-- In vertical direction the interpolation is retained, as the leaf
1514	!-- area density is initialised by prescribing a vertical profile
1515	!-- consisting of piecewise linear segments. The upper boundary
1516	!-- of the plant canopy is now defined by lad_w(pch_index,:,:) = 0.0.
1517
1518	DO i = nxl, nxr
1519	DO j = nys, nyn
1520	DO k = nzb, nzt+1
1521	IF ( lad_s(k,j,i) > 0.0_wp ) THEN
1522	lad_u(k,j,i) = lad_s(k,j,i)
1523	lad_u(k,j,i+1) = lad_s(k,j,i)
1524	lad_v(k,j,i) = lad_s(k,j,i)
1525	lad_v(k,j+1,i) = lad_s(k,j,i)
1526	ENDIF
1527	ENDDO
1528	DO k = nzb, nzt
1529	lad_w(k,j,i) = 0.5_wp * ( lad_s(k+1,j,i) + lad_s(k,j,i) )
1530	ENDDO
1531	ENDDO
1532	ENDDO
1533
1534	lad_w(pch_index,:,:) = 0.0_wp
1535	lad_w(nzt+1,:,:) = lad_w(nzt,:,:)
1536
1537	CALL exchange_horiz( lad_u, nbgp )
1538	CALL exchange_horiz( lad_v, nbgp )
1539	CALL exchange_horiz( lad_w, nbgp )
1540
1541	!
1542	!-- Initialisation of the canopy heat source distribution
1543	IF ( cthf /= 0.0_wp ) THEN
1544	!
1545	!-- Piecewise evaluation of the leaf area index by
1546	!-- integration of the leaf area density
1547	lai(:,:,:) = 0.0_wp
1548	DO i = nxlg, nxrg
1549	DO j = nysg, nyng
1550	DO k = pch_index-1, 0, -1
1551	lai(k,j,i) = lai(k+1,j,i) + &
1552	( 0.5_wp * ( lad_w(k+1,j,i) + &
1553	lad_s(k+1,j,i) ) * &
1554	( zw(k+1) - zu(k+1) ) ) + &
1555	( 0.5_wp * ( lad_w(k,j,i) + &
1556	lad_s(k+1,j,i) ) * &
1557	( zu(k+1) - zw(k) ) )
1558	ENDDO
1559	ENDDO
1560	ENDDO
1561
1562	!
1563	!-- Evaluation of the upward kinematic vertical heat flux within the
1564	!-- canopy
1565	DO i = nxlg, nxrg
1566	DO j = nysg, nyng
1567	DO k = 0, pch_index
1568	canopy_heat_flux(k,j,i) = cthf * &
1569	exp( -0.6_wp * lai(k,j,i) )
1570	ENDDO
1571	ENDDO
1572	ENDDO
1573
1574	!
1575	!-- The near surface heat flux is derived from the heat flux
1576	!-- distribution within the canopy
1577	shf(:,:) = canopy_heat_flux(0,:,:)
1578
1579	ENDIF
1580
1581	ENDIF
1582
1583	!
1584	!-- If required, initialize dvrp-software
1585	IF ( dt_dvrp /= 9999999.9_wp ) CALL init_dvrp
1586
1587	IF ( ocean ) THEN
1588	!
1589	!-- Initialize quantities needed for the ocean model
1590	CALL init_ocean
1591
1592	ELSE
1593	!
1594	!-- Initialize quantities for handling cloud physics
1595	!-- This routine must be called before lpm_init, because
1596	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
1597	!-- lpm_init) is not defined.
1598	CALL init_cloud_physics
1599	ENDIF
1600
1601	!
1602	!-- If required, initialize particles
1603	IF ( particle_advection ) CALL lpm_init
1604
1605	!
1606	!-- Initialize the ws-scheme.
1607	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
1608
1609	!
1610	!-- Setting weighting factors for calculation of perturbation pressure
1611	!-- and turbulent quantities from the RK substeps
1612	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
1613
1614	weight_substep(1) = 1._wp/6._wp
1615	weight_substep(2) = 3._wp/10._wp
1616	weight_substep(3) = 8._wp/15._wp
1617
1618	weight_pres(1) = 1._wp/3._wp
1619	weight_pres(2) = 5._wp/12._wp
1620	weight_pres(3) = 1._wp/4._wp
1621
1622	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
1623
1624	weight_substep(1) = 1._wp/2._wp
1625	weight_substep(2) = 1._wp/2._wp
1626
1627	weight_pres(1) = 1._wp/2._wp
1628	weight_pres(2) = 1._wp/2._wp
1629
1630	ELSE ! for Euler-method
1631
1632	weight_substep(1) = 1.0_wp
1633	weight_pres(1) = 1.0_wp
1634
1635	ENDIF
1636
1637	!
1638	!-- Initialize Rayleigh damping factors
1639	rdf = 0.0_wp
1640	rdf_sc = 0.0_wp
1641	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
1642	IF ( .NOT. ocean ) THEN
1643	DO k = nzb+1, nzt
1644	IF ( zu(k) >= rayleigh_damping_height ) THEN
1645	rdf(k) = rayleigh_damping_factor * &
1646	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
1647	/ ( zu(nzt) - rayleigh_damping_height ) )&
1648	)**2
1649	ENDIF
1650	ENDDO
1651	ELSE
1652	DO k = nzt, nzb+1, -1
1653	IF ( zu(k) <= rayleigh_damping_height ) THEN
1654	rdf(k) = rayleigh_damping_factor * &
1655	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
1656	/ ( rayleigh_damping_height - zu(nzb+1)))&
1657	)**2
1658	ENDIF
1659	ENDDO
1660	ENDIF
1661	ENDIF
1662	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
1663
1664	!
1665	!-- Initialize the starting level and the vertical smoothing factor used for
1666	!-- the external pressure gradient
1667	dp_smooth_factor = 1.0_wp
1668	IF ( dp_external ) THEN
1669	!
1670	!-- Set the starting level dp_level_ind_b only if it has not been set before
1671	!-- (e.g. in init_grid).
1672	IF ( dp_level_ind_b == 0 ) THEN
1673	ind_array = MINLOC( ABS( dp_level_b - zu ) )
1674	dp_level_ind_b = ind_array(1) - 1 + nzb
1675	! MINLOC uses lower array bound 1
1676	ENDIF
1677	IF ( dp_smooth ) THEN
1678	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
1679	DO k = dp_level_ind_b+1, nzt
1680	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
1681	( REAL( k - dp_level_ind_b, KIND=wp ) / &
1682	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
1683	ENDDO
1684	ENDIF
1685	ENDIF
1686
1687	!
1688	!-- Initialize damping zone for the potential temperature in case of
1689	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
1690	!-- at the inflow boundary and decreases to zero at pt_damping_width.
1691	ptdf_x = 0.0_wp
1692	ptdf_y = 0.0_wp
1693	IF ( bc_lr_dirrad ) THEN
1694	DO i = nxl, nxr
1695	IF ( ( i * dx ) < pt_damping_width ) THEN
1696	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
1697	REAL( pt_damping_width - i * dx, KIND=wp ) / ( &
1698	REAL( pt_damping_width, KIND=wp ) ) ) )**2
1699	ENDIF
1700	ENDDO
1701	ELSEIF ( bc_lr_raddir ) THEN
1702	DO i = nxl, nxr
1703	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
1704	ptdf_x(i) = pt_damping_factor * &
1705	SIN( pi * 0.5_wp * &
1706	( ( i - nx ) * dx + pt_damping_width ) / &
1707	REAL( pt_damping_width, KIND=wp ) )**2
1708	ENDIF
1709	ENDDO
1710	ELSEIF ( bc_ns_dirrad ) THEN
1711	DO j = nys, nyn
1712	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
1713	ptdf_y(j) = pt_damping_factor * &
1714	SIN( pi * 0.5_wp * &
1715	( ( j - ny ) * dy + pt_damping_width ) / &
1716	REAL( pt_damping_width, KIND=wp ) )**2
1717	ENDIF
1718	ENDDO
1719	ELSEIF ( bc_ns_raddir ) THEN
1720	DO j = nys, nyn
1721	IF ( ( j * dy ) < pt_damping_width ) THEN
1722	ptdf_y(j) = pt_damping_factor * &
1723	SIN( pi * 0.5_wp * &
1724	( pt_damping_width - j * dy ) / &
1725	REAL( pt_damping_width, KIND=wp ) )**2
1726	ENDIF
1727	ENDDO
1728	ENDIF
1729
1730	!
1731	!-- Initialize local summation arrays for routine flow_statistics.
1732	!-- This is necessary because they may not yet have been initialized when they
1733	!-- are called from flow_statistics (or - depending on the chosen model run -
1734	!-- are never initialized)
1735	sums_divnew_l = 0.0_wp
1736	sums_divold_l = 0.0_wp
1737	sums_l_l = 0.0_wp
1738	sums_up_fraction_l = 0.0_wp
1739	sums_wsts_bc_l = 0.0_wp
1740
1741	!
1742	!-- Pre-set masks for regional statistics. Default is the total model domain.
1743	!-- Ghost points are excluded because counting values at the ghost boundaries
1744	!-- would bias the statistics
1745	rmask = 1.0_wp
1746	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
1747	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
1748
1749	!
1750	!-- User-defined initializing actions. Check afterwards, if maximum number
1751	!-- of allowed timeseries is exceeded
1752	CALL user_init
1753
1754	IF ( dots_num > dots_max ) THEN
1755	WRITE( message_string, * ) 'number of time series quantities exceeds', &
1756	' its maximum of dots_max = ', dots_max, &
1757	' &Please increase dots_max in modules.f90.'
1758	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
1759	ENDIF
1760
1761	!
1762	!-- Input binary data file is not needed anymore. This line must be placed
1763	!-- after call of user_init!
1764	CALL close_file( 13 )
1765
1766	!
1767	!-- Compute total sum of active mask grid points
1768	!-- ngp_2dh: number of grid points of a horizontal cross section through the
1769	!-- total domain
1770	!-- ngp_3d: number of grid points of the total domain
1771	ngp_2dh_outer_l = 0
1772	ngp_2dh_outer = 0
1773	ngp_2dh_s_inner_l = 0
1774	ngp_2dh_s_inner = 0
1775	ngp_2dh_l = 0
1776	ngp_2dh = 0
1777	ngp_3d_inner_l = 0.0_wp
1778	ngp_3d_inner = 0
1779	ngp_3d = 0
1780	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
1781
1782	DO sr = 0, statistic_regions
1783	DO i = nxl, nxr
1784	DO j = nys, nyn
1785	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
1786	!
1787	!-- All xy-grid points
1788	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
1789	!
1790	!-- xy-grid points above topography
1791	DO k = nzb_s_outer(j,i), nz + 1
1792	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
1793	ENDDO
1794	DO k = nzb_s_inner(j,i), nz + 1
1795	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
1796	ENDDO
1797	!
1798	!-- All grid points of the total domain above topography
1799	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
1800	( nz - nzb_s_inner(j,i) + 2 )
1801	ENDIF
1802	ENDDO
1803	ENDDO
1804	ENDDO
1805
1806	sr = statistic_regions + 1
1807	#if defined( __parallel )
1808	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1809	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
1810	comm2d, ierr )
1811	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1812	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
1813	MPI_INTEGER, MPI_SUM, comm2d, ierr )
1814	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1815	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
1816	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
1817	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1818	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
1819	MPI_SUM, comm2d, ierr )
1820	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
1821	#else
1822	ngp_2dh = ngp_2dh_l
1823	ngp_2dh_outer = ngp_2dh_outer_l
1824	ngp_2dh_s_inner = ngp_2dh_s_inner_l
1825	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
1826	#endif
1827
1828	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
1829	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
1830
1831	!
1832	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
1833	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
1834	!-- the respective subdomain lie below the surface topography
1835	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
1836	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
1837	ngp_3d_inner(:) )
1838	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
1839
1840	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, ngp_3d_inner_tmp )
1841
1842
1843	END SUBROUTINE init_3d_model

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