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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1361

Last change on this file since 1361 was 1361, checked in by hoffmann, 10 years ago
improved version of two-moment cloud physics
Property svn:keywords set to `Id`
File size: 64.0 KB

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

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