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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1360

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

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