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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1385

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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 1385 2014-05-02 14:39:33Z raasch $
27	!
28	! 1384 2014-05-02 14:31:06Z raasch
29	! location messages added
30	!
31	! 1361 2014-04-16 15:17:48Z hoffmann
32	! tend_* removed
33	! Bugfix: w_subs is not allocated anymore if it is already allocated
34	!
35	! 1359 2014-04-11 17:15:14Z hoffmann
36	! module lpm_init_mod added to use statements, because lpm_init has become a
37	! module
38	!
39	! 1353 2014-04-08 15:21:23Z heinze
40	! REAL constants provided with KIND-attribute
41	!
42	! 1340 2014-03-25 19:45:13Z kanani
43	! REAL constants defined as wp-kind
44	!
45	! 1322 2014-03-20 16:38:49Z raasch
46	! REAL constants defined as wp-kind
47	! module interfaces removed
48	!
49	! 1320 2014-03-20 08:40:49Z raasch
50	! ONLY-attribute added to USE-statements,
51	! kind-parameters added to all INTEGER and REAL declaration statements,
52	! kinds are defined in new module kinds,
53	! revision history before 2012 removed,
54	! comment fields (!:) to be used for variable explanations added to
55	! all variable declaration statements
56	!
57	! 1316 2014-03-17 07:44:59Z heinze
58	! Bugfix: allocation of w_subs
59	!
60	! 1299 2014-03-06 13:15:21Z heinze
61	! Allocate w_subs due to extension of large scale subsidence in combination
62	! with large scale forcing data (LSF_DATA)
63	!
64	! 1241 2013-10-30 11:36:58Z heinze
65	! Overwrite initial profiles in case of nudging
66	! Inititialize shf and qsws in case of large_scale_forcing
67	!
68	! 1221 2013-09-10 08:59:13Z raasch
69	! +rflags_s_inner in copyin statement, use copyin for most arrays instead of
70	! copy
71	!
72	! 1212 2013-08-15 08:46:27Z raasch
73	! array tri is allocated and included in data copy statement
74	!
75	! 1195 2013-07-01 12:27:57Z heinze
76	! Bugfix: move allocation of ref_state to parin.f90 and read_var_list.f90
77	!
78	! 1179 2013-06-14 05:57:58Z raasch
79	! allocate and set ref_state to be used in buoyancy terms
80	!
81	! 1171 2013-05-30 11:27:45Z raasch
82	! diss array is allocated with full size if accelerator boards are used
83	!
84	! 1159 2013-05-21 11:58:22Z fricke
85	! -bc_lr_dirneu, bc_lr_neudir, bc_ns_dirneu, bc_ns_neudir
86	!
87	! 1153 2013-05-10 14:33:08Z raasch
88	! diss array is allocated with dummy elements even if it is not needed
89	! (required by PGI 13.4 / CUDA 5.0)
90	!
91	! 1115 2013-03-26 18:16:16Z hoffmann
92	! unused variables removed
93	!
94	! 1113 2013-03-10 02:48:14Z raasch
95	! openACC directive modified
96	!
97	! 1111 2013-03-08 23:54:10Z raasch
98	! openACC directives added for pres
99	! array diss allocated only if required
100	!
101	! 1092 2013-02-02 11:24:22Z raasch
102	! unused variables removed
103	!
104	! 1065 2012-11-22 17:42:36Z hoffmann
105	! allocation of diss (dissipation rate) in case of turbulence = .TRUE. added
106	!
107	! 1053 2012-11-13 17:11:03Z hoffmann
108	! allocation and initialisation of necessary data arrays for the two-moment
109	! cloud physics scheme the two new prognostic equations (nr, qr):
110	! +dr, lambda_r, mu_r, sed_, xr, s, sws, swst, , _p, t_m, _1, _2, _3,
111	! +tend_*, prr
112	!
113	! 1036 2012-10-22 13:43:42Z raasch
114	! code put under GPL (PALM 3.9)
115	!
116	! 1032 2012-10-21 13:03:21Z letzel
117	! save memory by not allocating pt_2 in case of neutral = .T.
118	!
119	! 1025 2012-10-07 16:04:41Z letzel
120	! bugfix: swap indices of mask for ghost boundaries
121	!
122	! 1015 2012-09-27 09:23:24Z raasch
123	! mask is set to zero for ghost boundaries
124	!
125	! 1010 2012-09-20 07:59:54Z raasch
126	! cpp switch __nopointer added for pointer free version
127	!
128	! 1003 2012-09-14 14:35:53Z raasch
129	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
130	!
131	! 1001 2012-09-13 14:08:46Z raasch
132	! all actions concerning leapfrog scheme removed
133	!
134	! 996 2012-09-07 10:41:47Z raasch
135	! little reformatting
136	!
137	! 978 2012-08-09 08:28:32Z fricke
138	! outflow damping layer removed
139	! roughness length for scalar quantites z0h added
140	! damping zone for the potential temperatur in case of non-cyclic lateral
141	! boundaries added
142	! initialization of ptdf_x, ptdf_y
143	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
144	!
145	! 849 2012-03-15 10:35:09Z raasch
146	! init_particles renamed lpm_init
147	!
148	! 825 2012-02-19 03:03:44Z raasch
149	! wang_collision_kernel renamed wang_kernel
150	!
151	! Revision 1.1 1998/03/09 16:22:22 raasch
152	! Initial revision
153	!
154	!
155	! Description:
156	! ------------
157	! Allocation of arrays and initialization of the 3D model via
158	! a) pre-run the 1D model
159	! or
160	! b) pre-set constant linear profiles
161	! or
162	! c) read values of a previous run
163	!------------------------------------------------------------------------------!
164
165	USE advec_ws
166
167	USE arrays_3d
168
169	USE cloud_parameters, &
170	ONLY: nc_const, precipitation_amount, precipitation_rate, prr
171
172	USE constants, &
173	ONLY: pi
174
175	USE control_parameters
176
177	USE grid_variables, &
178	ONLY: dx, dy
179
180	USE indices
181
182	USE lpm_init_mod, &
183	ONLY: lpm_init
184
185	USE kinds
186
187	USE ls_forcing_mod
188
189	USE model_1d, &
190	ONLY: e1d, kh1d, km1d, l1d, rif1d, u1d, us1d, usws1d, v1d, vsws1d
191
192	USE netcdf_control
193
194	USE particle_attributes, &
195	ONLY: particle_advection, use_sgs_for_particles, wang_kernel
196
197	USE pegrid
198
199	USE random_function_mod
200
201	USE statistics, &
202	ONLY: hom, hom_sum, pr_palm, rmask, spectrum_x, spectrum_y, &
203	statistic_regions, sums, sums_divnew_l, sums_divold_l, sums_l, &
204	sums_l_l, sums_up_fraction_l, sums_wsts_bc_l, ts_value, &
205	weight_pres, weight_substep
206
207	USE transpose_indices
208
209	IMPLICIT NONE
210
211	INTEGER(iwp) :: i !:
212	INTEGER(iwp) :: ind_array(1) !:
213	INTEGER(iwp) :: j !:
214	INTEGER(iwp) :: k !:
215	INTEGER(iwp) :: sr !:
216
217	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !:
218
219	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !:
220	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !:
221
222	REAL(wp), DIMENSION(1:2) :: volume_flow_area_l !:
223	REAL(wp), DIMENSION(1:2) :: volume_flow_initial_l !:
224
225	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !:
226	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !:
227
228
229	CALL location_message( 'allocating arrays' )
230	!
231	!-- Allocate arrays
232	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
233	ngp_3d(0:statistic_regions), &
234	ngp_3d_inner(0:statistic_regions), &
235	ngp_3d_inner_l(0:statistic_regions), &
236	ngp_3d_inner_tmp(0:statistic_regions), &
237	sums_divnew_l(0:statistic_regions), &
238	sums_divold_l(0:statistic_regions) )
239	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
240	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
241	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
242	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
243	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
244	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
245	sums(nzb:nzt+1,pr_palm+max_pr_user), &
246	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
247	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
248	sums_up_fraction_l(10,3,0:statistic_regions), &
249	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
250	ts_value(dots_max,0:statistic_regions) )
251	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
252
253	ALLOCATE( rif(nysg:nyng,nxlg:nxrg), shf(nysg:nyng,nxlg:nxrg), &
254	ts(nysg:nyng,nxlg:nxrg), tswst(nysg:nyng,nxlg:nxrg), &
255	us(nysg:nyng,nxlg:nxrg), usws(nysg:nyng,nxlg:nxrg), &
256	uswst(nysg:nyng,nxlg:nxrg), vsws(nysg:nyng,nxlg:nxrg), &
257	vswst(nysg:nyng,nxlg:nxrg), z0(nysg:nyng,nxlg:nxrg), &
258	z0h(nysg:nyng,nxlg:nxrg) )
259
260	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
261	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
262	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
263	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
264	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
265
266	#if defined( __nopointer )
267	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
268	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
269	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
270	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
271	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
272	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
273	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
274	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
275	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
276	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
277	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
278	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
279	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
280	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
281	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
282	#else
283	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
284	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
285	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
286	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
287	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
288	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
289	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
290	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
291	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
292	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
293	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
294	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
295	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
296	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
297	IF ( .NOT. neutral ) THEN
298	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
299	ENDIF
300	#endif
301
302	!
303	!-- Following array is required for perturbation pressure within the iterative
304	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
305	!-- the weighted average of the substeps and cannot be used in the Poisson
306	!-- solver.
307	IF ( psolver == 'sor' ) THEN
308	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
309	ELSEIF ( psolver == 'multigrid' ) THEN
310	!
311	!-- For performance reasons, multigrid is using one ghost layer only
312	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
313	ENDIF
314
315	!
316	!-- Array for storing constant coeffficients of the tridiagonal solver
317	IF ( psolver == 'poisfft' ) THEN
318	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
319	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
320	ENDIF
321
322	IF ( humidity .OR. passive_scalar ) THEN
323	!
324	!-- 2D-humidity/scalar arrays
325	ALLOCATE ( qs(nysg:nyng,nxlg:nxrg), &
326	qsws(nysg:nyng,nxlg:nxrg), &
327	qswst(nysg:nyng,nxlg:nxrg) )
328
329	!
330	!-- 3D-humidity/scalar arrays
331	#if defined( __nopointer )
332	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
333	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
334	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
335	#else
336	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
337	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
338	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
339	#endif
340
341	!
342	!-- 3D-arrays needed for humidity only
343	IF ( humidity ) THEN
344	#if defined( __nopointer )
345	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
346	#else
347	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
348	#endif
349
350	IF ( cloud_physics ) THEN
351
352	!
353	!-- Liquid water content
354	#if defined( __nopointer )
355	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
356	#else
357	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
358	#endif
359	!
360	!-- Precipitation amount and rate (only needed if output is switched)
361	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
362	precipitation_rate(nysg:nyng,nxlg:nxrg) )
363
364	IF ( icloud_scheme == 0 ) THEN
365	!
366	!-- 1D-arrays
367	ALLOCATE ( nc_1d(nzb:nzt+1), pt_1d(nzb:nzt+1), &
368	q_1d(nzb:nzt+1), qc_1d(nzb:nzt+1) )
369	!
370	!-- 3D-cloud water content
371	#if defined( __nopointer )
372	ALLOCATE( qc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
373	#else
374	ALLOCATE( qc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
375	#endif
376
377	IF ( precipitation ) THEN
378	!
379	!-- 1D-arrays
380	ALLOCATE ( nr_1d(nzb:nzt+1), qr_1d(nzb:nzt+1) )
381
382	!
383	!-- 2D-rain water content and rain drop concentration arrays
384	ALLOCATE ( qrs(nysg:nyng,nxlg:nxrg), &
385	qrsws(nysg:nyng,nxlg:nxrg), &
386	qrswst(nysg:nyng,nxlg:nxrg), &
387	nrs(nysg:nyng,nxlg:nxrg), &
388	nrsws(nysg:nyng,nxlg:nxrg), &
389	nrswst(nysg:nyng,nxlg:nxrg) )
390	!
391	!-- 3D-rain water content, rain drop concentration arrays
392	#if defined( __nopointer )
393	ALLOCATE( nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
394	nr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
395	qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
396	qr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
397	tnr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
398	tqr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
399	#else
400	ALLOCATE( nr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
401	nr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
402	nr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
403	qr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
404	qr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
405	qr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
406	#endif
407	!
408	!-- 3d-precipitation rate
409	ALLOCATE( prr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
410	ENDIF
411
412	ENDIF
413	ENDIF
414
415	IF ( cloud_droplets ) THEN
416	!
417	!-- Liquid water content, change in liquid water content
418	#if defined( __nopointer )
419	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
420	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
421	#else
422	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
423	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
424	#endif
425	!
426	!-- Real volume of particles (with weighting), volume of particles
427	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
428	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
429	ENDIF
430
431	ENDIF
432
433	ENDIF
434
435	IF ( ocean ) THEN
436	ALLOCATE( saswsb(nysg:nyng,nxlg:nxrg), &
437	saswst(nysg:nyng,nxlg:nxrg) )
438	#if defined( __nopointer )
439	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
440	rho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
441	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
442	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
443	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
444	#else
445	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
446	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
447	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
448	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
449	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
450	prho => prho_1
451	rho => rho_1 ! routines calc_mean_profile and diffusion_e require
452	! density to be apointer
453	#endif
454	IF ( humidity_remote ) THEN
455	ALLOCATE( qswst_remote(nysg:nyng,nxlg:nxrg))
456	qswst_remote = 0.0_wp
457	ENDIF
458	ENDIF
459
460	!
461	!-- 3D-array for storing the dissipation, needed for calculating the sgs
462	!-- particle velocities
463	IF ( use_sgs_for_particles .OR. wang_kernel .OR. turbulence .OR. &
464	num_acc_per_node > 0 ) THEN
465	ALLOCATE( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
466	ENDIF
467
468	IF ( dt_dosp /= 9999999.9_wp ) THEN
469	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
470	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
471	spectrum_x = 0.0_wp
472	spectrum_y = 0.0_wp
473	ENDIF
474
475	!
476	!-- 1D-array for large scale subsidence velocity
477	IF ( .NOT. ALLOCATED( w_subs ) ) THEN
478	ALLOCATE ( w_subs(nzb:nzt+1) )
479	w_subs = 0.0_wp
480	ENDIF
481
482	!
483	!-- 3D-arrays for the leaf area density and the canopy drag coefficient
484	IF ( plant_canopy ) THEN
485	ALLOCATE ( lad_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
486	lad_u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
487	lad_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
488	lad_w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
489	cdc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
490
491	IF ( passive_scalar ) THEN
492	ALLOCATE ( sls(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
493	sec(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
494	ENDIF
495
496	IF ( cthf /= 0.0_wp ) THEN
497	ALLOCATE ( lai(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
498	canopy_heat_flux(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
499	ENDIF
500
501	ENDIF
502
503	!
504	!-- 4D-array for storing the Rif-values at vertical walls
505	IF ( topography /= 'flat' ) THEN
506	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
507	rif_wall = 0.0_wp
508	ENDIF
509
510	!
511	!-- Arrays to store velocity data from t-dt and the phase speeds which
512	!-- are needed for radiation boundary conditions
513	IF ( outflow_l ) THEN
514	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
515	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
516	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
517	ENDIF
518	IF ( outflow_r ) THEN
519	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
520	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
521	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
522	ENDIF
523	IF ( outflow_l .OR. outflow_r ) THEN
524	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
525	c_w(nzb:nzt+1,nysg:nyng) )
526	ENDIF
527	IF ( outflow_s ) THEN
528	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
529	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
530	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
531	ENDIF
532	IF ( outflow_n ) THEN
533	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
534	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
535	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
536	ENDIF
537	IF ( outflow_s .OR. outflow_n ) THEN
538	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
539	c_w(nzb:nzt+1,nxlg:nxrg) )
540	ENDIF
541	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
542	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
543	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
544	ENDIF
545
546
547	#if ! defined( __nopointer )
548	!
549	!-- Initial assignment of the pointers
550	e => e_1; e_p => e_2; te_m => e_3
551	IF ( .NOT. neutral ) THEN
552	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
553	ELSE
554	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
555	ENDIF
556	u => u_1; u_p => u_2; tu_m => u_3
557	v => v_1; v_p => v_2; tv_m => v_3
558	w => w_1; w_p => w_2; tw_m => w_3
559
560	IF ( humidity .OR. passive_scalar ) THEN
561	q => q_1; q_p => q_2; tq_m => q_3
562	IF ( humidity ) THEN
563	vpt => vpt_1
564	IF ( cloud_physics ) THEN
565	ql => ql_1
566	IF ( icloud_scheme == 0 ) THEN
567	qc => qc_1
568	IF ( precipitation ) THEN
569	qr => qr_1; qr_p => qr_2; tqr_m => qr_3
570	nr => nr_1; nr_p => nr_2; tnr_m => nr_3
571	ENDIF
572	ENDIF
573	ENDIF
574	ENDIF
575	IF ( cloud_droplets ) THEN
576	ql => ql_1
577	ql_c => ql_2
578	ENDIF
579	ENDIF
580
581	IF ( ocean ) THEN
582	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
583	ENDIF
584	#endif
585
586	!
587	!-- Allocate arrays containing the RK coefficient for calculation of
588	!-- perturbation pressure and turbulent fluxes. At this point values are
589	!-- set for pressure calculation during initialization (where no timestep
590	!-- is done). Further below the values needed within the timestep scheme
591	!-- will be set.
592	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
593	weight_pres(1:intermediate_timestep_count_max) )
594	weight_substep = 1.0_wp
595	weight_pres = 1.0_wp
596	intermediate_timestep_count = 1 ! needed when simulated_time = 0.0
597
598	CALL location_message( 'finished' )
599	!
600	!-- Initialize model variables
601	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
602	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
603	!
604	!-- First model run of a possible job queue.
605	!-- Initial profiles of the variables must be computes.
606	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
607
608	CALL location_message( 'initializing with 1D model profiles' )
609	!
610	!-- Use solutions of the 1D model as initial profiles,
611	!-- start 1D model
612	CALL init_1d_model
613	!
614	!-- Transfer initial profiles to the arrays of the 3D model
615	DO i = nxlg, nxrg
616	DO j = nysg, nyng
617	e(:,j,i) = e1d
618	kh(:,j,i) = kh1d
619	km(:,j,i) = km1d
620	pt(:,j,i) = pt_init
621	u(:,j,i) = u1d
622	v(:,j,i) = v1d
623	ENDDO
624	ENDDO
625
626	IF ( humidity .OR. passive_scalar ) THEN
627	DO i = nxlg, nxrg
628	DO j = nysg, nyng
629	q(:,j,i) = q_init
630	ENDDO
631	ENDDO
632	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
633	precipitation ) THEN
634	DO i = nxlg, nxrg
635	DO j = nysg, nyng
636	qr(:,j,i) = 0.0_wp
637	nr(:,j,i) = 0.0_wp
638	ENDDO
639	ENDDO
640	!
641	!-- Initialze nc_1d with default value
642	nc_1d(:) = nc_const
643
644	ENDIF
645	ENDIF
646
647	IF ( .NOT. constant_diffusion ) THEN
648	DO i = nxlg, nxrg
649	DO j = nysg, nyng
650	e(:,j,i) = e1d
651	ENDDO
652	ENDDO
653	!
654	!-- Store initial profiles for output purposes etc.
655	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
656
657	IF ( prandtl_layer ) THEN
658	rif = rif1d(nzb+1)
659	ts = 0.0_wp ! could actually be computed more accurately in the
660	! 1D model. Update when opportunity arises.
661	us = us1d
662	usws = usws1d
663	vsws = vsws1d
664	ELSE
665	ts = 0.0_wp ! must be set, because used in
666	rif = 0.0_wp ! flowste
667	us = 0.0_wp
668	usws = 0.0_wp
669	vsws = 0.0_wp
670	ENDIF
671
672	ELSE
673	e = 0.0_wp ! must be set, because used in
674	rif = 0.0_wp ! flowste
675	ts = 0.0_wp
676	us = 0.0_wp
677	usws = 0.0_wp
678	vsws = 0.0_wp
679	ENDIF
680	uswst = top_momentumflux_u
681	vswst = top_momentumflux_v
682
683	!
684	!-- In every case qs = 0.0 (see also pt)
685	!-- This could actually be computed more accurately in the 1D model.
686	!-- Update when opportunity arises!
687	IF ( humidity .OR. passive_scalar ) THEN
688	qs = 0.0_wp
689	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
690	precipitation ) THEN
691	qrs = 0.0_wp
692	nrs = 0.0_wp
693	ENDIF
694	ENDIF
695
696	!
697	!-- inside buildings set velocities back to zero
698	IF ( topography /= 'flat' ) THEN
699	DO i = nxl-1, nxr+1
700	DO j = nys-1, nyn+1
701	u(nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
702	v(nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
703	ENDDO
704	ENDDO
705
706	!
707	!-- WARNING: The extra boundary conditions set after running the
708	!-- ------- 1D model impose an error on the divergence one layer
709	!-- below the topography; need to correct later
710	!-- ATTENTION: Provisional correction for Piacsek & Williams
711	!-- --------- advection scheme: keep u and v zero one layer below
712	!-- the topography.
713	IF ( ibc_uv_b == 1 ) THEN
714	!
715	!-- Neumann condition
716	DO i = nxl-1, nxr+1
717	DO j = nys-1, nyn+1
718	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
719	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
720	ENDDO
721	ENDDO
722
723	ENDIF
724
725	ENDIF
726
727	CALL location_message( 'finished' )
728
729	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
730	THEN
731
732	CALL location_message( 'initializing with constant profiles' )
733	!
734	!-- Overwrite initial profiles in case of nudging
735	IF ( nudging ) THEN
736	pt_init = ptnudge(:,1)
737	u_init = unudge(:,1)
738	v_init = vnudge(:,1)
739	IF ( humidity .OR. passive_scalar ) THEN
740	q_init = qnudge(:,1)
741	ENDIF
742
743	WRITE( message_string, * ) 'Initial profiles of u, v and ', &
744	'scalars from NUDGING_DATA are used.'
745	CALL message( 'init_3d_model', 'PA0370', 0, 0, 0, 6, 0 )
746	ENDIF
747
748	!
749	!-- Use constructed initial profiles (velocity constant with height,
750	!-- temperature profile with constant gradient)
751	DO i = nxlg, nxrg
752	DO j = nysg, nyng
753	pt(:,j,i) = pt_init
754	u(:,j,i) = u_init
755	v(:,j,i) = v_init
756	ENDDO
757	ENDDO
758
759	!
760	!-- Set initial horizontal velocities at the lowest computational grid
761	!-- levels to zero in order to avoid too small time steps caused by the
762	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
763	!-- in the limiting formula!). The original values are stored to be later
764	!-- used for volume flow control.
765	DO i = nxlg, nxrg
766	DO j = nysg, nyng
767	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0_wp
768	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0_wp
769	ENDDO
770	ENDDO
771
772	IF ( humidity .OR. passive_scalar ) THEN
773	DO i = nxlg, nxrg
774	DO j = nysg, nyng
775	q(:,j,i) = q_init
776	ENDDO
777	ENDDO
778	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
779	!
780	!-- Initialze nc_1d with default value
781	nc_1d(:) = nc_const
782
783	IF ( precipitation ) THEN
784	DO i = nxlg, nxrg
785	DO j = nysg, nyng
786	qr(:,j,i) = 0.0_wp
787	nr(:,j,i) = 0.0_wp
788	ENDDO
789	ENDDO
790	ENDIF
791
792	ENDIF
793	ENDIF
794
795	IF ( ocean ) THEN
796	DO i = nxlg, nxrg
797	DO j = nysg, nyng
798	sa(:,j,i) = sa_init
799	ENDDO
800	ENDDO
801	ENDIF
802
803	IF ( constant_diffusion ) THEN
804	km = km_constant
805	kh = km / prandtl_number
806	e = 0.0_wp
807	ELSEIF ( e_init > 0.0_wp ) THEN
808	DO k = nzb+1, nzt
809	km(k,:,:) = 0.1_wp * l_grid(k) * SQRT( e_init )
810	ENDDO
811	km(nzb,:,:) = km(nzb+1,:,:)
812	km(nzt+1,:,:) = km(nzt,:,:)
813	kh = km / prandtl_number
814	e = e_init
815	ELSE
816	IF ( .NOT. ocean ) THEN
817	kh = 0.01_wp ! there must exist an initial diffusion, because
818	km = 0.01_wp ! otherwise no TKE would be produced by the
819	! production terms, as long as not yet
820	! e = (u/cm)*2 at k=nzb+1
821	ELSE
822	kh = 0.00001_wp
823	km = 0.00001_wp
824	ENDIF
825	e = 0.0_wp
826	ENDIF
827	rif = 0.0_wp
828	ts = 0.0_wp
829	us = 0.0_wp
830	usws = 0.0_wp
831	uswst = top_momentumflux_u
832	vsws = 0.0_wp
833	vswst = top_momentumflux_v
834	IF ( humidity .OR. passive_scalar ) qs = 0.0_wp
835
836	!
837	!-- Compute initial temperature field and other constants used in case
838	!-- of a sloping surface
839	IF ( sloping_surface ) CALL init_slope
840
841	CALL location_message( 'finished' )
842
843	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
844	THEN
845
846	CALL location_message( 'initializing by user' )
847	!
848	!-- Initialization will completely be done by the user
849	CALL user_init_3d_model
850
851	CALL location_message( 'finished' )
852
853	ENDIF
854
855	CALL location_message( 'initializing statistics, boundary conditions, etc.' )
856
857	!
858	!-- Bottom boundary
859	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
860	u(nzb,:,:) = 0.0_wp
861	v(nzb,:,:) = 0.0_wp
862	ENDIF
863
864	!
865	!-- Apply channel flow boundary condition
866	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
867	u(nzt+1,:,:) = 0.0_wp
868	v(nzt+1,:,:) = 0.0_wp
869	ENDIF
870
871	!
872	!-- Calculate virtual potential temperature
873	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
874
875	!
876	!-- Store initial profiles for output purposes etc.
877	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
878	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
879	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
880	hom(nzb,1,5,:) = 0.0_wp
881	hom(nzb,1,6,:) = 0.0_wp
882	ENDIF
883	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
884	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
885	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
886
887	IF ( ocean ) THEN
888	!
889	!-- Store initial salinity profile
890	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
891	ENDIF
892
893	IF ( humidity ) THEN
894	!
895	!-- Store initial profile of total water content, virtual potential
896	!-- temperature
897	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
898	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
899	IF ( cloud_physics .OR. cloud_droplets ) THEN
900	!
901	!-- Store initial profile of specific humidity and potential
902	!-- temperature
903	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
904	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
905	ENDIF
906	ENDIF
907
908	IF ( passive_scalar ) THEN
909	!
910	!-- Store initial scalar profile
911	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
912	ENDIF
913
914	!
915	!-- Initialize fluxes at bottom surface
916	IF ( use_surface_fluxes ) THEN
917
918	IF ( constant_heatflux ) THEN
919	!
920	!-- Heat flux is prescribed
921	IF ( random_heatflux ) THEN
922	CALL disturb_heatflux
923	ELSE
924	shf = surface_heatflux
925	!
926	!-- Initialize shf with data from external file LSF_DATA
927	IF ( large_scale_forcing .AND. lsf_surf ) THEN
928	CALL ls_forcing_surf ( simulated_time )
929	ENDIF
930
931	!
932	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
933	IF ( TRIM( topography ) /= 'flat' ) THEN
934	DO i = nxlg, nxrg
935	DO j = nysg, nyng
936	IF ( nzb_s_inner(j,i) /= 0 ) THEN
937	shf(j,i) = wall_heatflux(0)
938	ENDIF
939	ENDDO
940	ENDDO
941	ENDIF
942	ENDIF
943	ENDIF
944
945	!
946	!-- Determine the near-surface water flux
947	IF ( humidity .OR. passive_scalar ) THEN
948	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
949	precipitation ) THEN
950	qrsws = 0.0_wp
951	nrsws = 0.0_wp
952	ENDIF
953	IF ( constant_waterflux ) THEN
954	qsws = surface_waterflux
955	!
956	!-- Over topography surface_waterflux is replaced by
957	!-- wall_humidityflux(0)
958	IF ( TRIM( topography ) /= 'flat' ) THEN
959	wall_qflux = wall_humidityflux
960	DO i = nxlg, nxrg
961	DO j = nysg, nyng
962	IF ( nzb_s_inner(j,i) /= 0 ) THEN
963	qsws(j,i) = wall_qflux(0)
964	ENDIF
965	ENDDO
966	ENDDO
967	ENDIF
968	ENDIF
969	ENDIF
970
971	ENDIF
972
973	!
974	!-- Initialize fluxes at top surface
975	!-- Currently, only the heatflux and salinity flux can be prescribed.
976	!-- The latent flux is zero in this case!
977	IF ( use_top_fluxes ) THEN
978
979	IF ( constant_top_heatflux ) THEN
980	!
981	!-- Heat flux is prescribed
982	tswst = top_heatflux
983
984	IF ( humidity .OR. passive_scalar ) THEN
985	qswst = 0.0_wp
986	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
987	precipitation ) THEN
988	nrswst = 0.0_wp
989	qrswst = 0.0_wp
990	ENDIF
991	ENDIF
992
993	IF ( ocean ) THEN
994	saswsb = bottom_salinityflux
995	saswst = top_salinityflux
996	ENDIF
997	ENDIF
998
999	!
1000	!-- Initialization in case of a coupled model run
1001	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
1002	tswst = 0.0_wp
1003	ENDIF
1004
1005	ENDIF
1006
1007	!
1008	!-- Initialize Prandtl layer quantities
1009	IF ( prandtl_layer ) THEN
1010
1011	z0 = roughness_length
1012	z0h = z0h_factor * z0
1013
1014	IF ( .NOT. constant_heatflux ) THEN
1015	!
1016	!-- Surface temperature is prescribed. Here the heat flux cannot be
1017	!-- simply estimated, because therefore rif, u* and theta* would have
1018	!-- to be computed by iteration. This is why the heat flux is assumed
1019	!-- to be zero before the first time step. It approaches its correct
1020	!-- value in the course of the first few time steps.
1021	shf = 0.0_wp
1022	ENDIF
1023
1024	IF ( humidity .OR. passive_scalar ) THEN
1025	IF ( .NOT. constant_waterflux ) qsws = 0.0_wp
1026	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1027	precipitation ) THEN
1028	qrsws = 0.0_wp
1029	nrsws = 0.0_wp
1030	ENDIF
1031	ENDIF
1032
1033	ENDIF
1034
1035	!
1036	!-- Set the reference state to be used in the buoyancy terms (for ocean runs
1037	!-- the reference state will be set (overwritten) in init_ocean)
1038	IF ( use_single_reference_value ) THEN
1039	IF ( .NOT. humidity ) THEN
1040	ref_state(:) = pt_reference
1041	ELSE
1042	ref_state(:) = vpt_reference
1043	ENDIF
1044	ELSE
1045	IF ( .NOT. humidity ) THEN
1046	ref_state(:) = pt_init(:)
1047	ELSE
1048	ref_state(:) = vpt(:,nys,nxl)
1049	ENDIF
1050	ENDIF
1051
1052	!
1053	!-- For the moment, vertical velocity is zero
1054	w = 0.0_wp
1055
1056	!
1057	!-- Initialize array sums (must be defined in first call of pres)
1058	sums = 0.0_wp
1059
1060	!
1061	!-- In case of iterative solvers, p must get an initial value
1062	IF ( psolver == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
1063
1064	!
1065	!-- Treating cloud physics, liquid water content and precipitation amount
1066	!-- are zero at beginning of the simulation
1067	IF ( cloud_physics ) THEN
1068	ql = 0.0_wp
1069	IF ( precipitation ) precipitation_amount = 0.0_wp
1070	IF ( icloud_scheme == 0 ) THEN
1071	qc = 0.0_wp
1072	nc_1d = nc_const
1073	ENDIF
1074	ENDIF
1075	!
1076	!-- Impose vortex with vertical axis on the initial velocity profile
1077	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
1078	CALL init_rankine
1079	ENDIF
1080
1081	!
1082	!-- Impose temperature anomaly (advection test only)
1083	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
1084	CALL init_pt_anomaly
1085	ENDIF
1086
1087	!
1088	!-- If required, change the surface temperature at the start of the 3D run
1089	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
1090	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
1091	ENDIF
1092
1093	!
1094	!-- If required, change the surface humidity/scalar at the start of the 3D
1095	!-- run
1096	IF ( ( humidity .OR. passive_scalar ) .AND. &
1097	q_surface_initial_change /= 0.0_wp ) THEN
1098	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
1099	ENDIF
1100	!
1101	!-- Initialize the random number generator (from numerical recipes)
1102	CALL random_function_ini
1103
1104	!
1105	!-- Initialize old and new time levels.
1106	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
1107	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1108
1109	IF ( humidity .OR. passive_scalar ) THEN
1110	tq_m = 0.0_wp
1111	q_p = q
1112	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1113	precipitation ) THEN
1114	tqr_m = 0.0_wp
1115	qr_p = qr
1116	tnr_m = 0.0_wp
1117	nr_p = nr
1118	ENDIF
1119	ENDIF
1120
1121	IF ( ocean ) THEN
1122	tsa_m = 0.0_wp
1123	sa_p = sa
1124	ENDIF
1125
1126	CALL location_message( 'finished' )
1127
1128	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
1129	TRIM( initializing_actions ) == 'cyclic_fill' ) &
1130	THEN
1131
1132	CALL location_message( 'initializing in case of restart / cyclic_fill' )
1133	!
1134	!-- When reading data for cyclic fill of 3D prerun data files, read
1135	!-- some of the global variables from the restart file which are required
1136	!-- for initializing the inflow
1137	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1138
1139	DO i = 0, io_blocks-1
1140	IF ( i == io_group ) THEN
1141	CALL read_parts_of_var_list
1142	CALL close_file( 13 )
1143	ENDIF
1144	#if defined( __parallel )
1145	CALL MPI_BARRIER( comm2d, ierr )
1146	#endif
1147	ENDDO
1148
1149	ENDIF
1150
1151	!
1152	!-- Read binary data from restart file
1153	DO i = 0, io_blocks-1
1154	IF ( i == io_group ) THEN
1155	CALL read_3d_binary
1156	ENDIF
1157	#if defined( __parallel )
1158	CALL MPI_BARRIER( comm2d, ierr )
1159	#endif
1160	ENDDO
1161
1162	!
1163	!-- Initialization of the turbulence recycling method
1164	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1165	turbulent_inflow ) THEN
1166	!
1167	!-- First store the profiles to be used at the inflow.
1168	!-- These profiles are the (temporally) and horizontally averaged vertical
1169	!-- profiles from the prerun. Alternatively, prescribed profiles
1170	!-- for u,v-components can be used.
1171	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,5) )
1172
1173	IF ( use_prescribed_profile_data ) THEN
1174	mean_inflow_profiles(:,1) = u_init ! u
1175	mean_inflow_profiles(:,2) = v_init ! v
1176	ELSE
1177	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
1178	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
1179	ENDIF
1180	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
1181	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
1182
1183	!
1184	!-- If necessary, adjust the horizontal flow field to the prescribed
1185	!-- profiles
1186	IF ( use_prescribed_profile_data ) THEN
1187	DO i = nxlg, nxrg
1188	DO j = nysg, nyng
1189	DO k = nzb, nzt+1
1190	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
1191	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
1192	ENDDO
1193	ENDDO
1194	ENDDO
1195	ENDIF
1196
1197	!
1198	!-- Use these mean profiles at the inflow (provided that Dirichlet
1199	!-- conditions are used)
1200	IF ( inflow_l ) THEN
1201	DO j = nysg, nyng
1202	DO k = nzb, nzt+1
1203	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
1204	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
1205	w(k,j,nxlg:-1) = 0.0_wp
1206	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
1207	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
1208	ENDDO
1209	ENDDO
1210	ENDIF
1211
1212	!
1213	!-- Calculate the damping factors to be used at the inflow. For a
1214	!-- turbulent inflow the turbulent fluctuations have to be limited
1215	!-- vertically because otherwise the turbulent inflow layer will grow
1216	!-- in time.
1217	IF ( inflow_damping_height == 9999999.9_wp ) THEN
1218	!
1219	!-- Default: use the inversion height calculated by the prerun; if
1220	!-- this is zero, inflow_damping_height must be explicitly
1221	!-- specified.
1222	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
1223	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
1224	ELSE
1225	WRITE( message_string, * ) 'inflow_damping_height must be ',&
1226	'explicitly specified because&the inversion height ', &
1227	'calculated by the prerun is zero.'
1228	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
1229	ENDIF
1230
1231	ENDIF
1232
1233	IF ( inflow_damping_width == 9999999.9_wp ) THEN
1234	!
1235	!-- Default for the transition range: one tenth of the undamped
1236	!-- layer
1237	inflow_damping_width = 0.1_wp * inflow_damping_height
1238
1239	ENDIF
1240
1241	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
1242
1243	DO k = nzb, nzt+1
1244
1245	IF ( zu(k) <= inflow_damping_height ) THEN
1246	inflow_damping_factor(k) = 1.0_wp
1247	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
1248	inflow_damping_factor(k) = 1.0_wp - &
1249	( zu(k) - inflow_damping_height ) / &
1250	inflow_damping_width
1251	ELSE
1252	inflow_damping_factor(k) = 0.0_wp
1253	ENDIF
1254
1255	ENDDO
1256
1257	ENDIF
1258
1259	!
1260	!-- Inside buildings set velocities and TKE back to zero
1261	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1262	topography /= 'flat' ) THEN
1263	!
1264	!-- Inside buildings set velocities and TKE back to zero.
1265	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
1266	!-- maybe revise later.
1267	DO i = nxlg, nxrg
1268	DO j = nysg, nyng
1269	u (nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
1270	v (nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
1271	w (nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1272	e (nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1273	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
1274	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
1275	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1276	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1277	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1278	ENDDO
1279	ENDDO
1280
1281	ENDIF
1282
1283	!
1284	!-- Calculate initial temperature field and other constants used in case
1285	!-- of a sloping surface
1286	IF ( sloping_surface ) CALL init_slope
1287
1288	!
1289	!-- Initialize new time levels (only done in order to set boundary values
1290	!-- including ghost points)
1291	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1292	IF ( humidity .OR. passive_scalar ) THEN
1293	q_p = q
1294	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1295	precipitation ) THEN
1296	qr_p = qr
1297	nr_p = nr
1298	ENDIF
1299	ENDIF
1300	IF ( ocean ) sa_p = sa
1301
1302	!
1303	!-- Allthough tendency arrays are set in prognostic_equations, they have
1304	!-- have to be predefined here because they are used (but multiplied with 0)
1305	!-- there before they are set.
1306	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
1307	IF ( humidity .OR. passive_scalar ) THEN
1308	tq_m = 0.0_wp
1309	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1310	precipitation ) THEN
1311	tqr_m = 0.0_wp
1312	tnr_m = 0.0_wp
1313	ENDIF
1314	ENDIF
1315	IF ( ocean ) tsa_m = 0.0_wp
1316
1317	CALL location_message( 'finished' )
1318
1319	ELSE
1320	!
1321	!-- Actually this part of the programm should not be reached
1322	message_string = 'unknown initializing problem'
1323	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
1324	ENDIF
1325
1326
1327	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1328	!
1329	!-- Initialize old timelevels needed for radiation boundary conditions
1330	IF ( outflow_l ) THEN
1331	u_m_l(:,:,:) = u(:,:,1:2)
1332	v_m_l(:,:,:) = v(:,:,0:1)
1333	w_m_l(:,:,:) = w(:,:,0:1)
1334	ENDIF
1335	IF ( outflow_r ) THEN
1336	u_m_r(:,:,:) = u(:,:,nx-1:nx)
1337	v_m_r(:,:,:) = v(:,:,nx-1:nx)
1338	w_m_r(:,:,:) = w(:,:,nx-1:nx)
1339	ENDIF
1340	IF ( outflow_s ) THEN
1341	u_m_s(:,:,:) = u(:,0:1,:)
1342	v_m_s(:,:,:) = v(:,1:2,:)
1343	w_m_s(:,:,:) = w(:,0:1,:)
1344	ENDIF
1345	IF ( outflow_n ) THEN
1346	u_m_n(:,:,:) = u(:,ny-1:ny,:)
1347	v_m_n(:,:,:) = v(:,ny-1:ny,:)
1348	w_m_n(:,:,:) = w(:,ny-1:ny,:)
1349	ENDIF
1350
1351	ENDIF
1352
1353	!
1354	!-- Calculate the initial volume flow at the right and north boundary
1355	IF ( conserve_volume_flow ) THEN
1356
1357	IF ( use_prescribed_profile_data ) THEN
1358
1359	volume_flow_initial_l = 0.0_wp
1360	volume_flow_area_l = 0.0_wp
1361
1362	IF ( nxr == nx ) THEN
1363	DO j = nys, nyn
1364	DO k = nzb_2d(j,nx)+1, nzt
1365	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1366	u_init(k) * dzw(k)
1367	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1368	ENDDO
1369	ENDDO
1370	ENDIF
1371
1372	IF ( nyn == ny ) THEN
1373	DO i = nxl, nxr
1374	DO k = nzb_2d(ny,i)+1, nzt
1375	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1376	v_init(k) * dzw(k)
1377	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1378	ENDDO
1379	ENDDO
1380	ENDIF
1381
1382	#if defined( __parallel )
1383	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1384	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1385	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1386	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1387
1388	#else
1389	volume_flow_initial = volume_flow_initial_l
1390	volume_flow_area = volume_flow_area_l
1391	#endif
1392
1393	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1394
1395	volume_flow_initial_l = 0.0_wp
1396	volume_flow_area_l = 0.0_wp
1397
1398	IF ( nxr == nx ) THEN
1399	DO j = nys, nyn
1400	DO k = nzb_2d(j,nx)+1, nzt
1401	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1402	hom_sum(k,1,0) * dzw(k)
1403	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1404	ENDDO
1405	ENDDO
1406	ENDIF
1407
1408	IF ( nyn == ny ) THEN
1409	DO i = nxl, nxr
1410	DO k = nzb_2d(ny,i)+1, nzt
1411	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1412	hom_sum(k,2,0) * dzw(k)
1413	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1414	ENDDO
1415	ENDDO
1416	ENDIF
1417
1418	#if defined( __parallel )
1419	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1420	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1421	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1422	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1423
1424	#else
1425	volume_flow_initial = volume_flow_initial_l
1426	volume_flow_area = volume_flow_area_l
1427	#endif
1428
1429	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1430
1431	volume_flow_initial_l = 0.0_wp
1432	volume_flow_area_l = 0.0_wp
1433
1434	IF ( nxr == nx ) THEN
1435	DO j = nys, nyn
1436	DO k = nzb_2d(j,nx)+1, nzt
1437	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1438	u(k,j,nx) * dzw(k)
1439	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1440	ENDDO
1441	ENDDO
1442	ENDIF
1443
1444	IF ( nyn == ny ) THEN
1445	DO i = nxl, nxr
1446	DO k = nzb_2d(ny,i)+1, nzt
1447	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1448	v(k,ny,i) * dzw(k)
1449	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1450	ENDDO
1451	ENDDO
1452	ENDIF
1453
1454	#if defined( __parallel )
1455	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1456	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1457	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1458	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1459
1460	#else
1461	volume_flow_initial = volume_flow_initial_l
1462	volume_flow_area = volume_flow_area_l
1463	#endif
1464
1465	ENDIF
1466
1467	!
1468	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
1469	!-- from u\|v_bulk instead
1470	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
1471	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
1472	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
1473	ENDIF
1474
1475	ENDIF
1476
1477	!
1478	!-- Initialize quantities for special advections schemes
1479	CALL init_advec
1480
1481	!
1482	!-- Impose random perturbation on the horizontal velocity field and then
1483	!-- remove the divergences from the velocity field at the initial stage
1484	IF ( create_disturbances .AND. &
1485	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1486	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1487
1488	CALL location_message( 'creating initial disturbances' )
1489	CALL disturb_field( nzb_u_inner, tend, u )
1490	CALL disturb_field( nzb_v_inner, tend, v )
1491	CALL location_message( 'finished' )
1492
1493	CALL location_message( 'calling pressure solver' )
1494	n_sor = nsor_ini
1495	!$acc data copyin( d, ddzu, ddzw, nzb_s_inner, nzb_u_inner ) &
1496	!$acc copyin( nzb_v_inner, nzb_w_inner, p, rflags_s_inner, tend ) &
1497	!$acc copyin( weight_pres, weight_substep ) &
1498	!$acc copy( tri, tric, u, v, w )
1499	CALL pres
1500	!$acc end data
1501	n_sor = nsor
1502	CALL location_message( 'finished' )
1503
1504	ENDIF
1505
1506	!
1507	!-- Initialization of the leaf area density
1508	IF ( plant_canopy ) THEN
1509
1510	SELECT CASE ( TRIM( canopy_mode ) )
1511
1512	CASE( 'block' )
1513
1514	DO i = nxlg, nxrg
1515	DO j = nysg, nyng
1516	lad_s(:,j,i) = lad(:)
1517	cdc(:,j,i) = drag_coefficient
1518	IF ( passive_scalar ) THEN
1519	sls(:,j,i) = leaf_surface_concentration
1520	sec(:,j,i) = scalar_exchange_coefficient
1521	ENDIF
1522	ENDDO
1523	ENDDO
1524
1525	CASE DEFAULT
1526
1527	!
1528	!-- The DEFAULT case is reached either if the parameter
1529	!-- canopy mode contains a wrong character string or if the
1530	!-- user has coded a special case in the user interface.
1531	!-- There, the subroutine user_init_plant_canopy checks
1532	!-- which of these two conditions applies.
1533	CALL user_init_plant_canopy
1534
1535	END SELECT
1536
1537	CALL exchange_horiz( lad_s, nbgp )
1538	CALL exchange_horiz( cdc, nbgp )
1539
1540	IF ( passive_scalar ) THEN
1541	CALL exchange_horiz( sls, nbgp )
1542	CALL exchange_horiz( sec, nbgp )
1543	ENDIF
1544
1545	!
1546	!-- Sharp boundaries of the plant canopy in horizontal directions
1547	!-- In vertical direction the interpolation is retained, as the leaf
1548	!-- area density is initialised by prescribing a vertical profile
1549	!-- consisting of piecewise linear segments. The upper boundary
1550	!-- of the plant canopy is now defined by lad_w(pch_index,:,:) = 0.0.
1551
1552	DO i = nxl, nxr
1553	DO j = nys, nyn
1554	DO k = nzb, nzt+1
1555	IF ( lad_s(k,j,i) > 0.0_wp ) THEN
1556	lad_u(k,j,i) = lad_s(k,j,i)
1557	lad_u(k,j,i+1) = lad_s(k,j,i)
1558	lad_v(k,j,i) = lad_s(k,j,i)
1559	lad_v(k,j+1,i) = lad_s(k,j,i)
1560	ENDIF
1561	ENDDO
1562	DO k = nzb, nzt
1563	lad_w(k,j,i) = 0.5_wp * ( lad_s(k+1,j,i) + lad_s(k,j,i) )
1564	ENDDO
1565	ENDDO
1566	ENDDO
1567
1568	lad_w(pch_index,:,:) = 0.0_wp
1569	lad_w(nzt+1,:,:) = lad_w(nzt,:,:)
1570
1571	CALL exchange_horiz( lad_u, nbgp )
1572	CALL exchange_horiz( lad_v, nbgp )
1573	CALL exchange_horiz( lad_w, nbgp )
1574
1575	!
1576	!-- Initialisation of the canopy heat source distribution
1577	IF ( cthf /= 0.0_wp ) THEN
1578	!
1579	!-- Piecewise evaluation of the leaf area index by
1580	!-- integration of the leaf area density
1581	lai(:,:,:) = 0.0_wp
1582	DO i = nxlg, nxrg
1583	DO j = nysg, nyng
1584	DO k = pch_index-1, 0, -1
1585	lai(k,j,i) = lai(k+1,j,i) + &
1586	( 0.5_wp * ( lad_w(k+1,j,i) + &
1587	lad_s(k+1,j,i) ) * &
1588	( zw(k+1) - zu(k+1) ) ) + &
1589	( 0.5_wp * ( lad_w(k,j,i) + &
1590	lad_s(k+1,j,i) ) * &
1591	( zu(k+1) - zw(k) ) )
1592	ENDDO
1593	ENDDO
1594	ENDDO
1595
1596	!
1597	!-- Evaluation of the upward kinematic vertical heat flux within the
1598	!-- canopy
1599	DO i = nxlg, nxrg
1600	DO j = nysg, nyng
1601	DO k = 0, pch_index
1602	canopy_heat_flux(k,j,i) = cthf * &
1603	exp( -0.6_wp * lai(k,j,i) )
1604	ENDDO
1605	ENDDO
1606	ENDDO
1607
1608	!
1609	!-- The near surface heat flux is derived from the heat flux
1610	!-- distribution within the canopy
1611	shf(:,:) = canopy_heat_flux(0,:,:)
1612
1613	ENDIF
1614
1615	ENDIF
1616
1617	!
1618	!-- If required, initialize dvrp-software
1619	IF ( dt_dvrp /= 9999999.9_wp ) CALL init_dvrp
1620
1621	IF ( ocean ) THEN
1622	!
1623	!-- Initialize quantities needed for the ocean model
1624	CALL init_ocean
1625
1626	ELSE
1627	!
1628	!-- Initialize quantities for handling cloud physics
1629	!-- This routine must be called before lpm_init, because
1630	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
1631	!-- lpm_init) is not defined.
1632	CALL init_cloud_physics
1633	ENDIF
1634
1635	!
1636	!-- If required, initialize particles
1637	IF ( particle_advection ) CALL lpm_init
1638
1639	!
1640	!-- Initialize the ws-scheme.
1641	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
1642
1643	!
1644	!-- Setting weighting factors for calculation of perturbation pressure
1645	!-- and turbulent quantities from the RK substeps
1646	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
1647
1648	weight_substep(1) = 1._wp/6._wp
1649	weight_substep(2) = 3._wp/10._wp
1650	weight_substep(3) = 8._wp/15._wp
1651
1652	weight_pres(1) = 1._wp/3._wp
1653	weight_pres(2) = 5._wp/12._wp
1654	weight_pres(3) = 1._wp/4._wp
1655
1656	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
1657
1658	weight_substep(1) = 1._wp/2._wp
1659	weight_substep(2) = 1._wp/2._wp
1660
1661	weight_pres(1) = 1._wp/2._wp
1662	weight_pres(2) = 1._wp/2._wp
1663
1664	ELSE ! for Euler-method
1665
1666	weight_substep(1) = 1.0_wp
1667	weight_pres(1) = 1.0_wp
1668
1669	ENDIF
1670
1671	!
1672	!-- Initialize Rayleigh damping factors
1673	rdf = 0.0_wp
1674	rdf_sc = 0.0_wp
1675	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
1676	IF ( .NOT. ocean ) THEN
1677	DO k = nzb+1, nzt
1678	IF ( zu(k) >= rayleigh_damping_height ) THEN
1679	rdf(k) = rayleigh_damping_factor * &
1680	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
1681	/ ( zu(nzt) - rayleigh_damping_height ) )&
1682	)**2
1683	ENDIF
1684	ENDDO
1685	ELSE
1686	DO k = nzt, nzb+1, -1
1687	IF ( zu(k) <= rayleigh_damping_height ) THEN
1688	rdf(k) = rayleigh_damping_factor * &
1689	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
1690	/ ( rayleigh_damping_height - zu(nzb+1)))&
1691	)**2
1692	ENDIF
1693	ENDDO
1694	ENDIF
1695	ENDIF
1696	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
1697
1698	!
1699	!-- Initialize the starting level and the vertical smoothing factor used for
1700	!-- the external pressure gradient
1701	dp_smooth_factor = 1.0_wp
1702	IF ( dp_external ) THEN
1703	!
1704	!-- Set the starting level dp_level_ind_b only if it has not been set before
1705	!-- (e.g. in init_grid).
1706	IF ( dp_level_ind_b == 0 ) THEN
1707	ind_array = MINLOC( ABS( dp_level_b - zu ) )
1708	dp_level_ind_b = ind_array(1) - 1 + nzb
1709	! MINLOC uses lower array bound 1
1710	ENDIF
1711	IF ( dp_smooth ) THEN
1712	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
1713	DO k = dp_level_ind_b+1, nzt
1714	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
1715	( REAL( k - dp_level_ind_b, KIND=wp ) / &
1716	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
1717	ENDDO
1718	ENDIF
1719	ENDIF
1720
1721	!
1722	!-- Initialize damping zone for the potential temperature in case of
1723	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
1724	!-- at the inflow boundary and decreases to zero at pt_damping_width.
1725	ptdf_x = 0.0_wp
1726	ptdf_y = 0.0_wp
1727	IF ( bc_lr_dirrad ) THEN
1728	DO i = nxl, nxr
1729	IF ( ( i * dx ) < pt_damping_width ) THEN
1730	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
1731	REAL( pt_damping_width - i * dx, KIND=wp ) / ( &
1732	REAL( pt_damping_width, KIND=wp ) ) ) )**2
1733	ENDIF
1734	ENDDO
1735	ELSEIF ( bc_lr_raddir ) THEN
1736	DO i = nxl, nxr
1737	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
1738	ptdf_x(i) = pt_damping_factor * &
1739	SIN( pi * 0.5_wp * &
1740	( ( i - nx ) * dx + pt_damping_width ) / &
1741	REAL( pt_damping_width, KIND=wp ) )**2
1742	ENDIF
1743	ENDDO
1744	ELSEIF ( bc_ns_dirrad ) THEN
1745	DO j = nys, nyn
1746	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
1747	ptdf_y(j) = pt_damping_factor * &
1748	SIN( pi * 0.5_wp * &
1749	( ( j - ny ) * dy + pt_damping_width ) / &
1750	REAL( pt_damping_width, KIND=wp ) )**2
1751	ENDIF
1752	ENDDO
1753	ELSEIF ( bc_ns_raddir ) THEN
1754	DO j = nys, nyn
1755	IF ( ( j * dy ) < pt_damping_width ) THEN
1756	ptdf_y(j) = pt_damping_factor * &
1757	SIN( pi * 0.5_wp * &
1758	( pt_damping_width - j * dy ) / &
1759	REAL( pt_damping_width, KIND=wp ) )**2
1760	ENDIF
1761	ENDDO
1762	ENDIF
1763
1764	!
1765	!-- Initialize local summation arrays for routine flow_statistics.
1766	!-- This is necessary because they may not yet have been initialized when they
1767	!-- are called from flow_statistics (or - depending on the chosen model run -
1768	!-- are never initialized)
1769	sums_divnew_l = 0.0_wp
1770	sums_divold_l = 0.0_wp
1771	sums_l_l = 0.0_wp
1772	sums_up_fraction_l = 0.0_wp
1773	sums_wsts_bc_l = 0.0_wp
1774
1775	!
1776	!-- Pre-set masks for regional statistics. Default is the total model domain.
1777	!-- Ghost points are excluded because counting values at the ghost boundaries
1778	!-- would bias the statistics
1779	rmask = 1.0_wp
1780	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
1781	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
1782
1783	!
1784	!-- User-defined initializing actions. Check afterwards, if maximum number
1785	!-- of allowed timeseries is exceeded
1786	CALL user_init
1787
1788	IF ( dots_num > dots_max ) THEN
1789	WRITE( message_string, * ) 'number of time series quantities exceeds', &
1790	' its maximum of dots_max = ', dots_max, &
1791	' &Please increase dots_max in modules.f90.'
1792	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
1793	ENDIF
1794
1795	!
1796	!-- Input binary data file is not needed anymore. This line must be placed
1797	!-- after call of user_init!
1798	CALL close_file( 13 )
1799
1800	!
1801	!-- Compute total sum of active mask grid points
1802	!-- ngp_2dh: number of grid points of a horizontal cross section through the
1803	!-- total domain
1804	!-- ngp_3d: number of grid points of the total domain
1805	ngp_2dh_outer_l = 0
1806	ngp_2dh_outer = 0
1807	ngp_2dh_s_inner_l = 0
1808	ngp_2dh_s_inner = 0
1809	ngp_2dh_l = 0
1810	ngp_2dh = 0
1811	ngp_3d_inner_l = 0.0_wp
1812	ngp_3d_inner = 0
1813	ngp_3d = 0
1814	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
1815
1816	DO sr = 0, statistic_regions
1817	DO i = nxl, nxr
1818	DO j = nys, nyn
1819	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
1820	!
1821	!-- All xy-grid points
1822	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
1823	!
1824	!-- xy-grid points above topography
1825	DO k = nzb_s_outer(j,i), nz + 1
1826	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
1827	ENDDO
1828	DO k = nzb_s_inner(j,i), nz + 1
1829	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
1830	ENDDO
1831	!
1832	!-- All grid points of the total domain above topography
1833	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
1834	( nz - nzb_s_inner(j,i) + 2 )
1835	ENDIF
1836	ENDDO
1837	ENDDO
1838	ENDDO
1839
1840	sr = statistic_regions + 1
1841	#if defined( __parallel )
1842	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1843	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
1844	comm2d, ierr )
1845	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1846	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
1847	MPI_INTEGER, MPI_SUM, comm2d, ierr )
1848	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1849	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
1850	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
1851	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1852	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
1853	MPI_SUM, comm2d, ierr )
1854	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
1855	#else
1856	ngp_2dh = ngp_2dh_l
1857	ngp_2dh_outer = ngp_2dh_outer_l
1858	ngp_2dh_s_inner = ngp_2dh_s_inner_l
1859	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
1860	#endif
1861
1862	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
1863	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
1864
1865	!
1866	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
1867	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
1868	!-- the respective subdomain lie below the surface topography
1869	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
1870	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
1871	ngp_3d_inner(:) )
1872	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
1873
1874	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, ngp_3d_inner_tmp )
1875
1876	CALL location_message( 'leaving init_3d_model' )
1877
1878	END SUBROUTINE init_3d_model

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