Home

Context Navigation

source: palm/trunk/SOURCE/init_3d_model.f90 @ 1401

Last change on this file since 1401 was 1401, checked in by knoop, 10 years ago
last commit documented
Property svn:keywords set to `Id`
File size: 66.3 KB

Line
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 1401 2014-05-09 14:15:46Z knoop $
27	!
28	! 1400 2014-05-09 14:03:54Z knoop
29	! Parallel random number generator added
30	!
31	! 1384 2014-05-02 14:31:06Z raasch
32	! location messages added
33	!
34	! 1361 2014-04-16 15:17:48Z hoffmann
35	! tend_* removed
36	! Bugfix: w_subs is not allocated anymore if it is already allocated
37	!
38	! 1359 2014-04-11 17:15:14Z hoffmann
39	! module lpm_init_mod added to use statements, because lpm_init has become a
40	! module
41	!
42	! 1353 2014-04-08 15:21:23Z heinze
43	! REAL constants provided with KIND-attribute
44	!
45	! 1340 2014-03-25 19:45:13Z kanani
46	! REAL constants defined as wp-kind
47	!
48	! 1322 2014-03-20 16:38:49Z raasch
49	! REAL constants defined as wp-kind
50	! module interfaces removed
51	!
52	! 1320 2014-03-20 08:40:49Z raasch
53	! ONLY-attribute added to USE-statements,
54	! kind-parameters added to all INTEGER and REAL declaration statements,
55	! kinds are defined in new module kinds,
56	! revision history before 2012 removed,
57	! comment fields (!:) to be used for variable explanations added to
58	! all variable declaration statements
59	!
60	! 1316 2014-03-17 07:44:59Z heinze
61	! Bugfix: allocation of w_subs
62	!
63	! 1299 2014-03-06 13:15:21Z heinze
64	! Allocate w_subs due to extension of large scale subsidence in combination
65	! with large scale forcing data (LSF_DATA)
66	!
67	! 1241 2013-10-30 11:36:58Z heinze
68	! Overwrite initial profiles in case of nudging
69	! Inititialize shf and qsws in case of large_scale_forcing
70	!
71	! 1221 2013-09-10 08:59:13Z raasch
72	! +rflags_s_inner in copyin statement, use copyin for most arrays instead of
73	! copy
74	!
75	! 1212 2013-08-15 08:46:27Z raasch
76	! array tri is allocated and included in data copy statement
77	!
78	! 1195 2013-07-01 12:27:57Z heinze
79	! Bugfix: move allocation of ref_state to parin.f90 and read_var_list.f90
80	!
81	! 1179 2013-06-14 05:57:58Z raasch
82	! allocate and set ref_state to be used in buoyancy terms
83	!
84	! 1171 2013-05-30 11:27:45Z raasch
85	! diss array is allocated with full size if accelerator boards are used
86	!
87	! 1159 2013-05-21 11:58:22Z fricke
88	! -bc_lr_dirneu, bc_lr_neudir, bc_ns_dirneu, bc_ns_neudir
89	!
90	! 1153 2013-05-10 14:33:08Z raasch
91	! diss array is allocated with dummy elements even if it is not needed
92	! (required by PGI 13.4 / CUDA 5.0)
93	!
94	! 1115 2013-03-26 18:16:16Z hoffmann
95	! unused variables removed
96	!
97	! 1113 2013-03-10 02:48:14Z raasch
98	! openACC directive modified
99	!
100	! 1111 2013-03-08 23:54:10Z raasch
101	! openACC directives added for pres
102	! array diss allocated only if required
103	!
104	! 1092 2013-02-02 11:24:22Z raasch
105	! unused variables removed
106	!
107	! 1065 2012-11-22 17:42:36Z hoffmann
108	! allocation of diss (dissipation rate) in case of turbulence = .TRUE. added
109	!
110	! 1053 2012-11-13 17:11:03Z hoffmann
111	! allocation and initialisation of necessary data arrays for the two-moment
112	! cloud physics scheme the two new prognostic equations (nr, qr):
113	! +dr, lambda_r, mu_r, sed_, xr, s, sws, swst, , _p, t_m, _1, _2, _3,
114	! +tend_*, prr
115	!
116	! 1036 2012-10-22 13:43:42Z raasch
117	! code put under GPL (PALM 3.9)
118	!
119	! 1032 2012-10-21 13:03:21Z letzel
120	! save memory by not allocating pt_2 in case of neutral = .T.
121	!
122	! 1025 2012-10-07 16:04:41Z letzel
123	! bugfix: swap indices of mask for ghost boundaries
124	!
125	! 1015 2012-09-27 09:23:24Z raasch
126	! mask is set to zero for ghost boundaries
127	!
128	! 1010 2012-09-20 07:59:54Z raasch
129	! cpp switch __nopointer added for pointer free version
130	!
131	! 1003 2012-09-14 14:35:53Z raasch
132	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
133	!
134	! 1001 2012-09-13 14:08:46Z raasch
135	! all actions concerning leapfrog scheme removed
136	!
137	! 996 2012-09-07 10:41:47Z raasch
138	! little reformatting
139	!
140	! 978 2012-08-09 08:28:32Z fricke
141	! outflow damping layer removed
142	! roughness length for scalar quantites z0h added
143	! damping zone for the potential temperatur in case of non-cyclic lateral
144	! boundaries added
145	! initialization of ptdf_x, ptdf_y
146	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
147	!
148	! 849 2012-03-15 10:35:09Z raasch
149	! init_particles renamed lpm_init
150	!
151	! 825 2012-02-19 03:03:44Z raasch
152	! wang_collision_kernel renamed wang_kernel
153	!
154	! Revision 1.1 1998/03/09 16:22:22 raasch
155	! Initial revision
156	!
157	!
158	! Description:
159	! ------------
160	! Allocation of arrays and initialization of the 3D model via
161	! a) pre-run the 1D model
162	! or
163	! b) pre-set constant linear profiles
164	! or
165	! c) read values of a previous run
166	!------------------------------------------------------------------------------!
167
168	USE advec_ws
169
170	USE arrays_3d
171
172	USE cloud_parameters, &
173	ONLY: nc_const, precipitation_amount, precipitation_rate, prr
174
175	USE constants, &
176	ONLY: pi
177
178	USE control_parameters
179
180	USE grid_variables, &
181	ONLY: dx, dy
182
183	USE indices
184
185	USE lpm_init_mod, &
186	ONLY: lpm_init
187
188	USE kinds
189
190	USE ls_forcing_mod
191
192	USE model_1d, &
193	ONLY: e1d, kh1d, km1d, l1d, rif1d, u1d, us1d, usws1d, v1d, vsws1d
194
195	USE netcdf_control
196
197	USE particle_attributes, &
198	ONLY: particle_advection, use_sgs_for_particles, wang_kernel
199
200	USE pegrid
201
202	USE random_function_mod
203
204	USE random_generator_parallel, &
205	ONLY: random_number_parallel, random_seed_parallel, random_dummy, &
206	id_random_array, seq_random_array
207
208	USE statistics, &
209	ONLY: hom, hom_sum, pr_palm, rmask, spectrum_x, spectrum_y, &
210	statistic_regions, sums, sums_divnew_l, sums_divold_l, sums_l, &
211	sums_l_l, sums_up_fraction_l, sums_wsts_bc_l, ts_value, &
212	weight_pres, weight_substep
213
214	USE transpose_indices
215
216	IMPLICIT NONE
217
218	INTEGER(iwp) :: i !:
219	INTEGER(iwp) :: ind_array(1) !:
220	INTEGER(iwp) :: j !:
221	INTEGER(iwp) :: k !:
222	INTEGER(iwp) :: sr !:
223
224	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !:
225
226	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !:
227	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !:
228
229	REAL(wp), DIMENSION(1:2) :: volume_flow_area_l !:
230	REAL(wp), DIMENSION(1:2) :: volume_flow_initial_l !:
231
232	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !:
233	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !:
234
235
236	CALL location_message( 'allocating arrays' )
237	!
238	!-- Allocate arrays
239	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
240	ngp_3d(0:statistic_regions), &
241	ngp_3d_inner(0:statistic_regions), &
242	ngp_3d_inner_l(0:statistic_regions), &
243	ngp_3d_inner_tmp(0:statistic_regions), &
244	sums_divnew_l(0:statistic_regions), &
245	sums_divold_l(0:statistic_regions) )
246	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
247	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
248	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
249	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
250	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
251	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
252	sums(nzb:nzt+1,pr_palm+max_pr_user), &
253	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
254	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
255	sums_up_fraction_l(10,3,0:statistic_regions), &
256	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
257	ts_value(dots_max,0:statistic_regions) )
258	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
259
260	ALLOCATE( rif(nysg:nyng,nxlg:nxrg), shf(nysg:nyng,nxlg:nxrg), &
261	ts(nysg:nyng,nxlg:nxrg), tswst(nysg:nyng,nxlg:nxrg), &
262	us(nysg:nyng,nxlg:nxrg), usws(nysg:nyng,nxlg:nxrg), &
263	uswst(nysg:nyng,nxlg:nxrg), vsws(nysg:nyng,nxlg:nxrg), &
264	vswst(nysg:nyng,nxlg:nxrg), z0(nysg:nyng,nxlg:nxrg), &
265	z0h(nysg:nyng,nxlg:nxrg) )
266
267	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
268	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
269	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
270	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
271	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
272
273	#if defined( __nopointer )
274	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
275	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
276	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
277	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
278	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
279	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
280	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
281	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
282	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
283	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
284	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
285	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
286	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
287	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
288	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
289	#else
290	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
291	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
292	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
293	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
294	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
295	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
296	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
297	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
298	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
299	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
300	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
301	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
302	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
303	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
304	IF ( .NOT. neutral ) THEN
305	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
306	ENDIF
307	#endif
308
309	!
310	!-- Following array is required for perturbation pressure within the iterative
311	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
312	!-- the weighted average of the substeps and cannot be used in the Poisson
313	!-- solver.
314	IF ( psolver == 'sor' ) THEN
315	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
316	ELSEIF ( psolver == 'multigrid' ) THEN
317	!
318	!-- For performance reasons, multigrid is using one ghost layer only
319	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
320	ENDIF
321
322	!
323	!-- Array for storing constant coeffficients of the tridiagonal solver
324	IF ( psolver == 'poisfft' ) THEN
325	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
326	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
327	ENDIF
328
329	IF ( humidity .OR. passive_scalar ) THEN
330	!
331	!-- 2D-humidity/scalar arrays
332	ALLOCATE ( qs(nysg:nyng,nxlg:nxrg), &
333	qsws(nysg:nyng,nxlg:nxrg), &
334	qswst(nysg:nyng,nxlg:nxrg) )
335
336	!
337	!-- 3D-humidity/scalar arrays
338	#if defined( __nopointer )
339	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
340	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
341	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
342	#else
343	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
344	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
345	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
346	#endif
347
348	!
349	!-- 3D-arrays needed for humidity only
350	IF ( humidity ) THEN
351	#if defined( __nopointer )
352	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
353	#else
354	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
355	#endif
356
357	IF ( cloud_physics ) THEN
358
359	!
360	!-- Liquid water content
361	#if defined( __nopointer )
362	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
363	#else
364	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
365	#endif
366	!
367	!-- Precipitation amount and rate (only needed if output is switched)
368	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
369	precipitation_rate(nysg:nyng,nxlg:nxrg) )
370
371	IF ( icloud_scheme == 0 ) THEN
372	!
373	!-- 1D-arrays
374	ALLOCATE ( nc_1d(nzb:nzt+1), pt_1d(nzb:nzt+1), &
375	q_1d(nzb:nzt+1), qc_1d(nzb:nzt+1) )
376	!
377	!-- 3D-cloud water content
378	#if defined( __nopointer )
379	ALLOCATE( qc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
380	#else
381	ALLOCATE( qc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
382	#endif
383
384	IF ( precipitation ) THEN
385	!
386	!-- 1D-arrays
387	ALLOCATE ( nr_1d(nzb:nzt+1), qr_1d(nzb:nzt+1) )
388
389	!
390	!-- 2D-rain water content and rain drop concentration arrays
391	ALLOCATE ( qrs(nysg:nyng,nxlg:nxrg), &
392	qrsws(nysg:nyng,nxlg:nxrg), &
393	qrswst(nysg:nyng,nxlg:nxrg), &
394	nrs(nysg:nyng,nxlg:nxrg), &
395	nrsws(nysg:nyng,nxlg:nxrg), &
396	nrswst(nysg:nyng,nxlg:nxrg) )
397	!
398	!-- 3D-rain water content, rain drop concentration arrays
399	#if defined( __nopointer )
400	ALLOCATE( nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
401	nr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
402	qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
403	qr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
404	tnr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
405	tqr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
406	#else
407	ALLOCATE( nr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
408	nr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
409	nr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
410	qr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
411	qr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
412	qr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
413	#endif
414	!
415	!-- 3d-precipitation rate
416	ALLOCATE( prr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
417	ENDIF
418
419	ENDIF
420	ENDIF
421
422	IF ( cloud_droplets ) THEN
423	!
424	!-- Liquid water content, change in liquid water content
425	#if defined( __nopointer )
426	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
427	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
428	#else
429	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
430	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
431	#endif
432	!
433	!-- Real volume of particles (with weighting), volume of particles
434	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
435	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
436	ENDIF
437
438	ENDIF
439
440	ENDIF
441
442	IF ( ocean ) THEN
443	ALLOCATE( saswsb(nysg:nyng,nxlg:nxrg), &
444	saswst(nysg:nyng,nxlg:nxrg) )
445	#if defined( __nopointer )
446	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
447	rho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
448	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
449	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
450	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
451	#else
452	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
453	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
454	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
455	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
456	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
457	prho => prho_1
458	rho => rho_1 ! routines calc_mean_profile and diffusion_e require
459	! density to be apointer
460	#endif
461	IF ( humidity_remote ) THEN
462	ALLOCATE( qswst_remote(nysg:nyng,nxlg:nxrg))
463	qswst_remote = 0.0_wp
464	ENDIF
465	ENDIF
466
467	!
468	!-- 3D-array for storing the dissipation, needed for calculating the sgs
469	!-- particle velocities
470	IF ( use_sgs_for_particles .OR. wang_kernel .OR. turbulence .OR. &
471	num_acc_per_node > 0 ) THEN
472	ALLOCATE( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
473	ENDIF
474
475	IF ( dt_dosp /= 9999999.9_wp ) THEN
476	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
477	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
478	spectrum_x = 0.0_wp
479	spectrum_y = 0.0_wp
480	ENDIF
481
482	!
483	!-- 1D-array for large scale subsidence velocity
484	IF ( .NOT. ALLOCATED( w_subs ) ) THEN
485	ALLOCATE ( w_subs(nzb:nzt+1) )
486	w_subs = 0.0_wp
487	ENDIF
488
489	!
490	!-- ID-array and state-space-array for the parallel random number generator
491	IF ( random_generator == 'random-parallel' ) THEN
492	ALLOCATE ( seq_random_array(5,nysg:nyng,nxlg:nxrg) )
493	ALLOCATE ( id_random_array(0:ny,0:nx) )
494	seq_random_array = 0
495	id_random_array = 0
496	ENDIF
497
498	!
499	!-- 3D-arrays for the leaf area density and the canopy drag coefficient
500	IF ( plant_canopy ) THEN
501	ALLOCATE ( lad_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
502	lad_u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
503	lad_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
504	lad_w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
505	cdc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
506
507	IF ( passive_scalar ) THEN
508	ALLOCATE ( sls(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
509	sec(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
510	ENDIF
511
512	IF ( cthf /= 0.0_wp ) THEN
513	ALLOCATE ( lai(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
514	canopy_heat_flux(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
515	ENDIF
516
517	ENDIF
518
519	!
520	!-- 4D-array for storing the Rif-values at vertical walls
521	IF ( topography /= 'flat' ) THEN
522	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
523	rif_wall = 0.0_wp
524	ENDIF
525
526	!
527	!-- Arrays to store velocity data from t-dt and the phase speeds which
528	!-- are needed for radiation boundary conditions
529	IF ( outflow_l ) THEN
530	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
531	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
532	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
533	ENDIF
534	IF ( outflow_r ) THEN
535	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
536	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
537	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
538	ENDIF
539	IF ( outflow_l .OR. outflow_r ) THEN
540	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
541	c_w(nzb:nzt+1,nysg:nyng) )
542	ENDIF
543	IF ( outflow_s ) THEN
544	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
545	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
546	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
547	ENDIF
548	IF ( outflow_n ) THEN
549	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
550	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
551	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
552	ENDIF
553	IF ( outflow_s .OR. outflow_n ) THEN
554	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
555	c_w(nzb:nzt+1,nxlg:nxrg) )
556	ENDIF
557	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
558	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
559	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
560	ENDIF
561
562
563	#if ! defined( __nopointer )
564	!
565	!-- Initial assignment of the pointers
566	e => e_1; e_p => e_2; te_m => e_3
567	IF ( .NOT. neutral ) THEN
568	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
569	ELSE
570	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
571	ENDIF
572	u => u_1; u_p => u_2; tu_m => u_3
573	v => v_1; v_p => v_2; tv_m => v_3
574	w => w_1; w_p => w_2; tw_m => w_3
575
576	IF ( humidity .OR. passive_scalar ) THEN
577	q => q_1; q_p => q_2; tq_m => q_3
578	IF ( humidity ) THEN
579	vpt => vpt_1
580	IF ( cloud_physics ) THEN
581	ql => ql_1
582	IF ( icloud_scheme == 0 ) THEN
583	qc => qc_1
584	IF ( precipitation ) THEN
585	qr => qr_1; qr_p => qr_2; tqr_m => qr_3
586	nr => nr_1; nr_p => nr_2; tnr_m => nr_3
587	ENDIF
588	ENDIF
589	ENDIF
590	ENDIF
591	IF ( cloud_droplets ) THEN
592	ql => ql_1
593	ql_c => ql_2
594	ENDIF
595	ENDIF
596
597	IF ( ocean ) THEN
598	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
599	ENDIF
600	#endif
601
602	!
603	!-- Allocate arrays containing the RK coefficient for calculation of
604	!-- perturbation pressure and turbulent fluxes. At this point values are
605	!-- set for pressure calculation during initialization (where no timestep
606	!-- is done). Further below the values needed within the timestep scheme
607	!-- will be set.
608	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
609	weight_pres(1:intermediate_timestep_count_max) )
610	weight_substep = 1.0_wp
611	weight_pres = 1.0_wp
612	intermediate_timestep_count = 1 ! needed when simulated_time = 0.0
613
614	CALL location_message( 'finished' )
615	!
616	!-- Initialize model variables
617	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
618	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
619	!
620	!-- First model run of a possible job queue.
621	!-- Initial profiles of the variables must be computes.
622	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
623
624	CALL location_message( 'initializing with 1D model profiles' )
625	!
626	!-- Use solutions of the 1D model as initial profiles,
627	!-- start 1D model
628	CALL init_1d_model
629	!
630	!-- Transfer initial profiles to the arrays of the 3D model
631	DO i = nxlg, nxrg
632	DO j = nysg, nyng
633	e(:,j,i) = e1d
634	kh(:,j,i) = kh1d
635	km(:,j,i) = km1d
636	pt(:,j,i) = pt_init
637	u(:,j,i) = u1d
638	v(:,j,i) = v1d
639	ENDDO
640	ENDDO
641
642	IF ( humidity .OR. passive_scalar ) THEN
643	DO i = nxlg, nxrg
644	DO j = nysg, nyng
645	q(:,j,i) = q_init
646	ENDDO
647	ENDDO
648	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
649	precipitation ) THEN
650	DO i = nxlg, nxrg
651	DO j = nysg, nyng
652	qr(:,j,i) = 0.0_wp
653	nr(:,j,i) = 0.0_wp
654	ENDDO
655	ENDDO
656	!
657	!-- Initialze nc_1d with default value
658	nc_1d(:) = nc_const
659
660	ENDIF
661	ENDIF
662
663	IF ( .NOT. constant_diffusion ) THEN
664	DO i = nxlg, nxrg
665	DO j = nysg, nyng
666	e(:,j,i) = e1d
667	ENDDO
668	ENDDO
669	!
670	!-- Store initial profiles for output purposes etc.
671	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
672
673	IF ( prandtl_layer ) THEN
674	rif = rif1d(nzb+1)
675	ts = 0.0_wp ! could actually be computed more accurately in the
676	! 1D model. Update when opportunity arises.
677	us = us1d
678	usws = usws1d
679	vsws = vsws1d
680	ELSE
681	ts = 0.0_wp ! must be set, because used in
682	rif = 0.0_wp ! flowste
683	us = 0.0_wp
684	usws = 0.0_wp
685	vsws = 0.0_wp
686	ENDIF
687
688	ELSE
689	e = 0.0_wp ! must be set, because used in
690	rif = 0.0_wp ! flowste
691	ts = 0.0_wp
692	us = 0.0_wp
693	usws = 0.0_wp
694	vsws = 0.0_wp
695	ENDIF
696	uswst = top_momentumflux_u
697	vswst = top_momentumflux_v
698
699	!
700	!-- In every case qs = 0.0 (see also pt)
701	!-- This could actually be computed more accurately in the 1D model.
702	!-- Update when opportunity arises!
703	IF ( humidity .OR. passive_scalar ) THEN
704	qs = 0.0_wp
705	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
706	precipitation ) THEN
707	qrs = 0.0_wp
708	nrs = 0.0_wp
709	ENDIF
710	ENDIF
711
712	!
713	!-- inside buildings set velocities back to zero
714	IF ( topography /= 'flat' ) THEN
715	DO i = nxl-1, nxr+1
716	DO j = nys-1, nyn+1
717	u(nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
718	v(nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
719	ENDDO
720	ENDDO
721
722	!
723	!-- WARNING: The extra boundary conditions set after running the
724	!-- ------- 1D model impose an error on the divergence one layer
725	!-- below the topography; need to correct later
726	!-- ATTENTION: Provisional correction for Piacsek & Williams
727	!-- --------- advection scheme: keep u and v zero one layer below
728	!-- the topography.
729	IF ( ibc_uv_b == 1 ) THEN
730	!
731	!-- Neumann condition
732	DO i = nxl-1, nxr+1
733	DO j = nys-1, nyn+1
734	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
735	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
736	ENDDO
737	ENDDO
738
739	ENDIF
740
741	ENDIF
742
743	CALL location_message( 'finished' )
744
745	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
746	THEN
747
748	CALL location_message( 'initializing with constant profiles' )
749	!
750	!-- Overwrite initial profiles in case of nudging
751	IF ( nudging ) THEN
752	pt_init = ptnudge(:,1)
753	u_init = unudge(:,1)
754	v_init = vnudge(:,1)
755	IF ( humidity .OR. passive_scalar ) THEN
756	q_init = qnudge(:,1)
757	ENDIF
758
759	WRITE( message_string, * ) 'Initial profiles of u, v and ', &
760	'scalars from NUDGING_DATA are used.'
761	CALL message( 'init_3d_model', 'PA0370', 0, 0, 0, 6, 0 )
762	ENDIF
763
764	!
765	!-- Use constructed initial profiles (velocity constant with height,
766	!-- temperature profile with constant gradient)
767	DO i = nxlg, nxrg
768	DO j = nysg, nyng
769	pt(:,j,i) = pt_init
770	u(:,j,i) = u_init
771	v(:,j,i) = v_init
772	ENDDO
773	ENDDO
774
775	!
776	!-- Set initial horizontal velocities at the lowest computational grid
777	!-- levels to zero in order to avoid too small time steps caused by the
778	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
779	!-- in the limiting formula!). The original values are stored to be later
780	!-- used for volume flow control.
781	DO i = nxlg, nxrg
782	DO j = nysg, nyng
783	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0_wp
784	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0_wp
785	ENDDO
786	ENDDO
787
788	IF ( humidity .OR. passive_scalar ) THEN
789	DO i = nxlg, nxrg
790	DO j = nysg, nyng
791	q(:,j,i) = q_init
792	ENDDO
793	ENDDO
794	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
795	!
796	!-- Initialze nc_1d with default value
797	nc_1d(:) = nc_const
798
799	IF ( precipitation ) THEN
800	DO i = nxlg, nxrg
801	DO j = nysg, nyng
802	qr(:,j,i) = 0.0_wp
803	nr(:,j,i) = 0.0_wp
804	ENDDO
805	ENDDO
806	ENDIF
807
808	ENDIF
809	ENDIF
810
811	IF ( ocean ) THEN
812	DO i = nxlg, nxrg
813	DO j = nysg, nyng
814	sa(:,j,i) = sa_init
815	ENDDO
816	ENDDO
817	ENDIF
818
819	IF ( constant_diffusion ) THEN
820	km = km_constant
821	kh = km / prandtl_number
822	e = 0.0_wp
823	ELSEIF ( e_init > 0.0_wp ) THEN
824	DO k = nzb+1, nzt
825	km(k,:,:) = 0.1_wp * l_grid(k) * SQRT( e_init )
826	ENDDO
827	km(nzb,:,:) = km(nzb+1,:,:)
828	km(nzt+1,:,:) = km(nzt,:,:)
829	kh = km / prandtl_number
830	e = e_init
831	ELSE
832	IF ( .NOT. ocean ) THEN
833	kh = 0.01_wp ! there must exist an initial diffusion, because
834	km = 0.01_wp ! otherwise no TKE would be produced by the
835	! production terms, as long as not yet
836	! e = (u/cm)*2 at k=nzb+1
837	ELSE
838	kh = 0.00001_wp
839	km = 0.00001_wp
840	ENDIF
841	e = 0.0_wp
842	ENDIF
843	rif = 0.0_wp
844	ts = 0.0_wp
845	us = 0.0_wp
846	usws = 0.0_wp
847	uswst = top_momentumflux_u
848	vsws = 0.0_wp
849	vswst = top_momentumflux_v
850	IF ( humidity .OR. passive_scalar ) qs = 0.0_wp
851
852	!
853	!-- Compute initial temperature field and other constants used in case
854	!-- of a sloping surface
855	IF ( sloping_surface ) CALL init_slope
856
857	CALL location_message( 'finished' )
858
859	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
860	THEN
861
862	CALL location_message( 'initializing by user' )
863	!
864	!-- Initialization will completely be done by the user
865	CALL user_init_3d_model
866
867	CALL location_message( 'finished' )
868
869	ENDIF
870
871	CALL location_message( 'initializing statistics, boundary conditions, etc.' )
872
873	!
874	!-- Bottom boundary
875	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
876	u(nzb,:,:) = 0.0_wp
877	v(nzb,:,:) = 0.0_wp
878	ENDIF
879
880	!
881	!-- Apply channel flow boundary condition
882	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
883	u(nzt+1,:,:) = 0.0_wp
884	v(nzt+1,:,:) = 0.0_wp
885	ENDIF
886
887	!
888	!-- Calculate virtual potential temperature
889	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
890
891	!
892	!-- Store initial profiles for output purposes etc.
893	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
894	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
895	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
896	hom(nzb,1,5,:) = 0.0_wp
897	hom(nzb,1,6,:) = 0.0_wp
898	ENDIF
899	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
900	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
901	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
902
903	IF ( ocean ) THEN
904	!
905	!-- Store initial salinity profile
906	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
907	ENDIF
908
909	IF ( humidity ) THEN
910	!
911	!-- Store initial profile of total water content, virtual potential
912	!-- temperature
913	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
914	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
915	IF ( cloud_physics .OR. cloud_droplets ) THEN
916	!
917	!-- Store initial profile of specific humidity and potential
918	!-- temperature
919	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
920	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
921	ENDIF
922	ENDIF
923
924	IF ( passive_scalar ) THEN
925	!
926	!-- Store initial scalar profile
927	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
928	ENDIF
929
930	!
931	!-- Initialize the random number generators (from numerical recipes)
932	CALL random_function_ini
933	IF ( random_generator == 'random-parallel' ) THEN
934	CALL random_function_ini
935	!- asigning an ID to every vertical gridpoint column
936	DO j=0,ny
937	DO i=0,nx
938	id_random_array(j,i) = 1000000*i + j
939	END DO
940	ENDDO
941	!- executing the initial ran_parallel
942	DO j = nysg, nyng
943	DO i = nxlg, nxrg
944	CALL random_seed_parallel (random_sequence=id_random_array(j, i))
945	CALL random_number_parallel (random_dummy)
946	CALL random_seed_parallel (get=seq_random_array(:, j, i))
947	END DO
948	ENDDO
949	ENDIF
950
951	!
952	!-- Initialize fluxes at bottom surface
953	IF ( use_surface_fluxes ) THEN
954
955	IF ( constant_heatflux ) THEN
956	!
957	!-- Heat flux is prescribed
958	IF ( random_heatflux ) THEN
959	CALL disturb_heatflux
960	ELSE
961	shf = surface_heatflux
962	!
963	!-- Initialize shf with data from external file LSF_DATA
964	IF ( large_scale_forcing .AND. lsf_surf ) THEN
965	CALL ls_forcing_surf ( simulated_time )
966	ENDIF
967
968	!
969	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
970	IF ( TRIM( topography ) /= 'flat' ) THEN
971	DO i = nxlg, nxrg
972	DO j = nysg, nyng
973	IF ( nzb_s_inner(j,i) /= 0 ) THEN
974	shf(j,i) = wall_heatflux(0)
975	ENDIF
976	ENDDO
977	ENDDO
978	ENDIF
979	ENDIF
980	ENDIF
981
982	!
983	!-- Determine the near-surface water flux
984	IF ( humidity .OR. passive_scalar ) THEN
985	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
986	precipitation ) THEN
987	qrsws = 0.0_wp
988	nrsws = 0.0_wp
989	ENDIF
990	IF ( constant_waterflux ) THEN
991	qsws = surface_waterflux
992	!
993	!-- Over topography surface_waterflux is replaced by
994	!-- wall_humidityflux(0)
995	IF ( TRIM( topography ) /= 'flat' ) THEN
996	wall_qflux = wall_humidityflux
997	DO i = nxlg, nxrg
998	DO j = nysg, nyng
999	IF ( nzb_s_inner(j,i) /= 0 ) THEN
1000	qsws(j,i) = wall_qflux(0)
1001	ENDIF
1002	ENDDO
1003	ENDDO
1004	ENDIF
1005	ENDIF
1006	ENDIF
1007
1008	ENDIF
1009
1010	!
1011	!-- Initialize fluxes at top surface
1012	!-- Currently, only the heatflux and salinity flux can be prescribed.
1013	!-- The latent flux is zero in this case!
1014	IF ( use_top_fluxes ) THEN
1015
1016	IF ( constant_top_heatflux ) THEN
1017	!
1018	!-- Heat flux is prescribed
1019	tswst = top_heatflux
1020
1021	IF ( humidity .OR. passive_scalar ) THEN
1022	qswst = 0.0_wp
1023	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1024	precipitation ) THEN
1025	nrswst = 0.0_wp
1026	qrswst = 0.0_wp
1027	ENDIF
1028	ENDIF
1029
1030	IF ( ocean ) THEN
1031	saswsb = bottom_salinityflux
1032	saswst = top_salinityflux
1033	ENDIF
1034	ENDIF
1035
1036	!
1037	!-- Initialization in case of a coupled model run
1038	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
1039	tswst = 0.0_wp
1040	ENDIF
1041
1042	ENDIF
1043
1044	!
1045	!-- Initialize Prandtl layer quantities
1046	IF ( prandtl_layer ) THEN
1047
1048	z0 = roughness_length
1049	z0h = z0h_factor * z0
1050
1051	IF ( .NOT. constant_heatflux ) THEN
1052	!
1053	!-- Surface temperature is prescribed. Here the heat flux cannot be
1054	!-- simply estimated, because therefore rif, u* and theta* would have
1055	!-- to be computed by iteration. This is why the heat flux is assumed
1056	!-- to be zero before the first time step. It approaches its correct
1057	!-- value in the course of the first few time steps.
1058	shf = 0.0_wp
1059	ENDIF
1060
1061	IF ( humidity .OR. passive_scalar ) THEN
1062	IF ( .NOT. constant_waterflux ) qsws = 0.0_wp
1063	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1064	precipitation ) THEN
1065	qrsws = 0.0_wp
1066	nrsws = 0.0_wp
1067	ENDIF
1068	ENDIF
1069
1070	ENDIF
1071
1072	!
1073	!-- Set the reference state to be used in the buoyancy terms (for ocean runs
1074	!-- the reference state will be set (overwritten) in init_ocean)
1075	IF ( use_single_reference_value ) THEN
1076	IF ( .NOT. humidity ) THEN
1077	ref_state(:) = pt_reference
1078	ELSE
1079	ref_state(:) = vpt_reference
1080	ENDIF
1081	ELSE
1082	IF ( .NOT. humidity ) THEN
1083	ref_state(:) = pt_init(:)
1084	ELSE
1085	ref_state(:) = vpt(:,nys,nxl)
1086	ENDIF
1087	ENDIF
1088
1089	!
1090	!-- For the moment, vertical velocity is zero
1091	w = 0.0_wp
1092
1093	!
1094	!-- Initialize array sums (must be defined in first call of pres)
1095	sums = 0.0_wp
1096
1097	!
1098	!-- In case of iterative solvers, p must get an initial value
1099	IF ( psolver == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
1100
1101	!
1102	!-- Treating cloud physics, liquid water content and precipitation amount
1103	!-- are zero at beginning of the simulation
1104	IF ( cloud_physics ) THEN
1105	ql = 0.0_wp
1106	IF ( precipitation ) precipitation_amount = 0.0_wp
1107	IF ( icloud_scheme == 0 ) THEN
1108	qc = 0.0_wp
1109	nc_1d = nc_const
1110	ENDIF
1111	ENDIF
1112	!
1113	!-- Impose vortex with vertical axis on the initial velocity profile
1114	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
1115	CALL init_rankine
1116	ENDIF
1117
1118	!
1119	!-- Impose temperature anomaly (advection test only)
1120	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
1121	CALL init_pt_anomaly
1122	ENDIF
1123
1124	!
1125	!-- If required, change the surface temperature at the start of the 3D run
1126	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
1127	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
1128	ENDIF
1129
1130	!
1131	!-- If required, change the surface humidity/scalar at the start of the 3D
1132	!-- run
1133	IF ( ( humidity .OR. passive_scalar ) .AND. &
1134	q_surface_initial_change /= 0.0_wp ) THEN
1135	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
1136	ENDIF
1137
1138	!
1139	!-- Initialize old and new time levels.
1140	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
1141	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1142
1143	IF ( humidity .OR. passive_scalar ) THEN
1144	tq_m = 0.0_wp
1145	q_p = q
1146	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1147	precipitation ) THEN
1148	tqr_m = 0.0_wp
1149	qr_p = qr
1150	tnr_m = 0.0_wp
1151	nr_p = nr
1152	ENDIF
1153	ENDIF
1154
1155	IF ( ocean ) THEN
1156	tsa_m = 0.0_wp
1157	sa_p = sa
1158	ENDIF
1159
1160	CALL location_message( 'finished' )
1161
1162	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
1163	TRIM( initializing_actions ) == 'cyclic_fill' ) &
1164	THEN
1165
1166	CALL location_message( 'initializing in case of restart / cyclic_fill' )
1167	!
1168	!-- When reading data for cyclic fill of 3D prerun data files, read
1169	!-- some of the global variables from the restart file which are required
1170	!-- for initializing the inflow
1171	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1172
1173	DO i = 0, io_blocks-1
1174	IF ( i == io_group ) THEN
1175	CALL read_parts_of_var_list
1176	CALL close_file( 13 )
1177	ENDIF
1178	#if defined( __parallel )
1179	CALL MPI_BARRIER( comm2d, ierr )
1180	#endif
1181	ENDDO
1182
1183	ENDIF
1184
1185	!
1186	!-- Read binary data from restart file
1187	DO i = 0, io_blocks-1
1188	IF ( i == io_group ) THEN
1189	CALL read_3d_binary
1190	ENDIF
1191	#if defined( __parallel )
1192	CALL MPI_BARRIER( comm2d, ierr )
1193	#endif
1194	ENDDO
1195
1196	!
1197	!-- Initialization of the turbulence recycling method
1198	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1199	turbulent_inflow ) THEN
1200	!
1201	!-- First store the profiles to be used at the inflow.
1202	!-- These profiles are the (temporally) and horizontally averaged vertical
1203	!-- profiles from the prerun. Alternatively, prescribed profiles
1204	!-- for u,v-components can be used.
1205	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,5) )
1206
1207	IF ( use_prescribed_profile_data ) THEN
1208	mean_inflow_profiles(:,1) = u_init ! u
1209	mean_inflow_profiles(:,2) = v_init ! v
1210	ELSE
1211	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
1212	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
1213	ENDIF
1214	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
1215	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
1216
1217	!
1218	!-- If necessary, adjust the horizontal flow field to the prescribed
1219	!-- profiles
1220	IF ( use_prescribed_profile_data ) THEN
1221	DO i = nxlg, nxrg
1222	DO j = nysg, nyng
1223	DO k = nzb, nzt+1
1224	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
1225	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
1226	ENDDO
1227	ENDDO
1228	ENDDO
1229	ENDIF
1230
1231	!
1232	!-- Use these mean profiles at the inflow (provided that Dirichlet
1233	!-- conditions are used)
1234	IF ( inflow_l ) THEN
1235	DO j = nysg, nyng
1236	DO k = nzb, nzt+1
1237	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
1238	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
1239	w(k,j,nxlg:-1) = 0.0_wp
1240	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
1241	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
1242	ENDDO
1243	ENDDO
1244	ENDIF
1245
1246	!
1247	!-- Calculate the damping factors to be used at the inflow. For a
1248	!-- turbulent inflow the turbulent fluctuations have to be limited
1249	!-- vertically because otherwise the turbulent inflow layer will grow
1250	!-- in time.
1251	IF ( inflow_damping_height == 9999999.9_wp ) THEN
1252	!
1253	!-- Default: use the inversion height calculated by the prerun; if
1254	!-- this is zero, inflow_damping_height must be explicitly
1255	!-- specified.
1256	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
1257	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
1258	ELSE
1259	WRITE( message_string, * ) 'inflow_damping_height must be ',&
1260	'explicitly specified because&the inversion height ', &
1261	'calculated by the prerun is zero.'
1262	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
1263	ENDIF
1264
1265	ENDIF
1266
1267	IF ( inflow_damping_width == 9999999.9_wp ) THEN
1268	!
1269	!-- Default for the transition range: one tenth of the undamped
1270	!-- layer
1271	inflow_damping_width = 0.1_wp * inflow_damping_height
1272
1273	ENDIF
1274
1275	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
1276
1277	DO k = nzb, nzt+1
1278
1279	IF ( zu(k) <= inflow_damping_height ) THEN
1280	inflow_damping_factor(k) = 1.0_wp
1281	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
1282	inflow_damping_factor(k) = 1.0_wp - &
1283	( zu(k) - inflow_damping_height ) / &
1284	inflow_damping_width
1285	ELSE
1286	inflow_damping_factor(k) = 0.0_wp
1287	ENDIF
1288
1289	ENDDO
1290
1291	ENDIF
1292
1293	!
1294	!-- Inside buildings set velocities and TKE back to zero
1295	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1296	topography /= 'flat' ) THEN
1297	!
1298	!-- Inside buildings set velocities and TKE back to zero.
1299	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
1300	!-- maybe revise later.
1301	DO i = nxlg, nxrg
1302	DO j = nysg, nyng
1303	u (nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
1304	v (nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
1305	w (nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1306	e (nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1307	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
1308	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
1309	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1310	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1311	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1312	ENDDO
1313	ENDDO
1314
1315	ENDIF
1316
1317	!
1318	!-- Calculate initial temperature field and other constants used in case
1319	!-- of a sloping surface
1320	IF ( sloping_surface ) CALL init_slope
1321
1322	!
1323	!-- Initialize new time levels (only done in order to set boundary values
1324	!-- including ghost points)
1325	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1326	IF ( humidity .OR. passive_scalar ) THEN
1327	q_p = q
1328	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1329	precipitation ) THEN
1330	qr_p = qr
1331	nr_p = nr
1332	ENDIF
1333	ENDIF
1334	IF ( ocean ) sa_p = sa
1335
1336	!
1337	!-- Allthough tendency arrays are set in prognostic_equations, they have
1338	!-- have to be predefined here because they are used (but multiplied with 0)
1339	!-- there before they are set.
1340	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
1341	IF ( humidity .OR. passive_scalar ) THEN
1342	tq_m = 0.0_wp
1343	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1344	precipitation ) THEN
1345	tqr_m = 0.0_wp
1346	tnr_m = 0.0_wp
1347	ENDIF
1348	ENDIF
1349	IF ( ocean ) tsa_m = 0.0_wp
1350
1351	CALL location_message( 'finished' )
1352
1353	ELSE
1354	!
1355	!-- Actually this part of the programm should not be reached
1356	message_string = 'unknown initializing problem'
1357	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
1358	ENDIF
1359
1360
1361	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1362	!
1363	!-- Initialize old timelevels needed for radiation boundary conditions
1364	IF ( outflow_l ) THEN
1365	u_m_l(:,:,:) = u(:,:,1:2)
1366	v_m_l(:,:,:) = v(:,:,0:1)
1367	w_m_l(:,:,:) = w(:,:,0:1)
1368	ENDIF
1369	IF ( outflow_r ) THEN
1370	u_m_r(:,:,:) = u(:,:,nx-1:nx)
1371	v_m_r(:,:,:) = v(:,:,nx-1:nx)
1372	w_m_r(:,:,:) = w(:,:,nx-1:nx)
1373	ENDIF
1374	IF ( outflow_s ) THEN
1375	u_m_s(:,:,:) = u(:,0:1,:)
1376	v_m_s(:,:,:) = v(:,1:2,:)
1377	w_m_s(:,:,:) = w(:,0:1,:)
1378	ENDIF
1379	IF ( outflow_n ) THEN
1380	u_m_n(:,:,:) = u(:,ny-1:ny,:)
1381	v_m_n(:,:,:) = v(:,ny-1:ny,:)
1382	w_m_n(:,:,:) = w(:,ny-1:ny,:)
1383	ENDIF
1384
1385	ENDIF
1386
1387	!
1388	!-- Calculate the initial volume flow at the right and north boundary
1389	IF ( conserve_volume_flow ) THEN
1390
1391	IF ( use_prescribed_profile_data ) THEN
1392
1393	volume_flow_initial_l = 0.0_wp
1394	volume_flow_area_l = 0.0_wp
1395
1396	IF ( nxr == nx ) THEN
1397	DO j = nys, nyn
1398	DO k = nzb_2d(j,nx)+1, nzt
1399	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1400	u_init(k) * dzw(k)
1401	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1402	ENDDO
1403	ENDDO
1404	ENDIF
1405
1406	IF ( nyn == ny ) THEN
1407	DO i = nxl, nxr
1408	DO k = nzb_2d(ny,i)+1, nzt
1409	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1410	v_init(k) * dzw(k)
1411	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1412	ENDDO
1413	ENDDO
1414	ENDIF
1415
1416	#if defined( __parallel )
1417	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1418	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1419	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1420	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1421
1422	#else
1423	volume_flow_initial = volume_flow_initial_l
1424	volume_flow_area = volume_flow_area_l
1425	#endif
1426
1427	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1428
1429	volume_flow_initial_l = 0.0_wp
1430	volume_flow_area_l = 0.0_wp
1431
1432	IF ( nxr == nx ) THEN
1433	DO j = nys, nyn
1434	DO k = nzb_2d(j,nx)+1, nzt
1435	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1436	hom_sum(k,1,0) * dzw(k)
1437	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1438	ENDDO
1439	ENDDO
1440	ENDIF
1441
1442	IF ( nyn == ny ) THEN
1443	DO i = nxl, nxr
1444	DO k = nzb_2d(ny,i)+1, nzt
1445	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1446	hom_sum(k,2,0) * dzw(k)
1447	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1448	ENDDO
1449	ENDDO
1450	ENDIF
1451
1452	#if defined( __parallel )
1453	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1454	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1455	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1456	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1457
1458	#else
1459	volume_flow_initial = volume_flow_initial_l
1460	volume_flow_area = volume_flow_area_l
1461	#endif
1462
1463	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1464
1465	volume_flow_initial_l = 0.0_wp
1466	volume_flow_area_l = 0.0_wp
1467
1468	IF ( nxr == nx ) THEN
1469	DO j = nys, nyn
1470	DO k = nzb_2d(j,nx)+1, nzt
1471	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1472	u(k,j,nx) * dzw(k)
1473	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1474	ENDDO
1475	ENDDO
1476	ENDIF
1477
1478	IF ( nyn == ny ) THEN
1479	DO i = nxl, nxr
1480	DO k = nzb_2d(ny,i)+1, nzt
1481	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1482	v(k,ny,i) * dzw(k)
1483	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1484	ENDDO
1485	ENDDO
1486	ENDIF
1487
1488	#if defined( __parallel )
1489	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1490	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1491	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1492	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1493
1494	#else
1495	volume_flow_initial = volume_flow_initial_l
1496	volume_flow_area = volume_flow_area_l
1497	#endif
1498
1499	ENDIF
1500
1501	!
1502	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
1503	!-- from u\|v_bulk instead
1504	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
1505	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
1506	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
1507	ENDIF
1508
1509	ENDIF
1510
1511	!
1512	!-- Initialize quantities for special advections schemes
1513	CALL init_advec
1514
1515	!
1516	!-- Impose random perturbation on the horizontal velocity field and then
1517	!-- remove the divergences from the velocity field at the initial stage
1518	IF ( create_disturbances .AND. &
1519	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1520	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1521
1522	CALL location_message( 'creating initial disturbances' )
1523	CALL disturb_field( nzb_u_inner, tend, u )
1524	CALL disturb_field( nzb_v_inner, tend, v )
1525	CALL location_message( 'finished' )
1526
1527	CALL location_message( 'calling pressure solver' )
1528	n_sor = nsor_ini
1529	!$acc data copyin( d, ddzu, ddzw, nzb_s_inner, nzb_u_inner ) &
1530	!$acc copyin( nzb_v_inner, nzb_w_inner, p, rflags_s_inner, tend ) &
1531	!$acc copyin( weight_pres, weight_substep ) &
1532	!$acc copy( tri, tric, u, v, w )
1533	CALL pres
1534	!$acc end data
1535	n_sor = nsor
1536	CALL location_message( 'finished' )
1537
1538	ENDIF
1539
1540	!
1541	!-- Initialization of the leaf area density
1542	IF ( plant_canopy ) THEN
1543
1544	SELECT CASE ( TRIM( canopy_mode ) )
1545
1546	CASE( 'block' )
1547
1548	DO i = nxlg, nxrg
1549	DO j = nysg, nyng
1550	lad_s(:,j,i) = lad(:)
1551	cdc(:,j,i) = drag_coefficient
1552	IF ( passive_scalar ) THEN
1553	sls(:,j,i) = leaf_surface_concentration
1554	sec(:,j,i) = scalar_exchange_coefficient
1555	ENDIF
1556	ENDDO
1557	ENDDO
1558
1559	CASE DEFAULT
1560
1561	!
1562	!-- The DEFAULT case is reached either if the parameter
1563	!-- canopy mode contains a wrong character string or if the
1564	!-- user has coded a special case in the user interface.
1565	!-- There, the subroutine user_init_plant_canopy checks
1566	!-- which of these two conditions applies.
1567	CALL user_init_plant_canopy
1568
1569	END SELECT
1570
1571	CALL exchange_horiz( lad_s, nbgp )
1572	CALL exchange_horiz( cdc, nbgp )
1573
1574	IF ( passive_scalar ) THEN
1575	CALL exchange_horiz( sls, nbgp )
1576	CALL exchange_horiz( sec, nbgp )
1577	ENDIF
1578
1579	!
1580	!-- Sharp boundaries of the plant canopy in horizontal directions
1581	!-- In vertical direction the interpolation is retained, as the leaf
1582	!-- area density is initialised by prescribing a vertical profile
1583	!-- consisting of piecewise linear segments. The upper boundary
1584	!-- of the plant canopy is now defined by lad_w(pch_index,:,:) = 0.0.
1585
1586	DO i = nxl, nxr
1587	DO j = nys, nyn
1588	DO k = nzb, nzt+1
1589	IF ( lad_s(k,j,i) > 0.0_wp ) THEN
1590	lad_u(k,j,i) = lad_s(k,j,i)
1591	lad_u(k,j,i+1) = lad_s(k,j,i)
1592	lad_v(k,j,i) = lad_s(k,j,i)
1593	lad_v(k,j+1,i) = lad_s(k,j,i)
1594	ENDIF
1595	ENDDO
1596	DO k = nzb, nzt
1597	lad_w(k,j,i) = 0.5_wp * ( lad_s(k+1,j,i) + lad_s(k,j,i) )
1598	ENDDO
1599	ENDDO
1600	ENDDO
1601
1602	lad_w(pch_index,:,:) = 0.0_wp
1603	lad_w(nzt+1,:,:) = lad_w(nzt,:,:)
1604
1605	CALL exchange_horiz( lad_u, nbgp )
1606	CALL exchange_horiz( lad_v, nbgp )
1607	CALL exchange_horiz( lad_w, nbgp )
1608
1609	!
1610	!-- Initialisation of the canopy heat source distribution
1611	IF ( cthf /= 0.0_wp ) THEN
1612	!
1613	!-- Piecewise evaluation of the leaf area index by
1614	!-- integration of the leaf area density
1615	lai(:,:,:) = 0.0_wp
1616	DO i = nxlg, nxrg
1617	DO j = nysg, nyng
1618	DO k = pch_index-1, 0, -1
1619	lai(k,j,i) = lai(k+1,j,i) + &
1620	( 0.5_wp * ( lad_w(k+1,j,i) + &
1621	lad_s(k+1,j,i) ) * &
1622	( zw(k+1) - zu(k+1) ) ) + &
1623	( 0.5_wp * ( lad_w(k,j,i) + &
1624	lad_s(k+1,j,i) ) * &
1625	( zu(k+1) - zw(k) ) )
1626	ENDDO
1627	ENDDO
1628	ENDDO
1629
1630	!
1631	!-- Evaluation of the upward kinematic vertical heat flux within the
1632	!-- canopy
1633	DO i = nxlg, nxrg
1634	DO j = nysg, nyng
1635	DO k = 0, pch_index
1636	canopy_heat_flux(k,j,i) = cthf * &
1637	exp( -0.6_wp * lai(k,j,i) )
1638	ENDDO
1639	ENDDO
1640	ENDDO
1641
1642	!
1643	!-- The near surface heat flux is derived from the heat flux
1644	!-- distribution within the canopy
1645	shf(:,:) = canopy_heat_flux(0,:,:)
1646
1647	ENDIF
1648
1649	ENDIF
1650
1651	!
1652	!-- If required, initialize dvrp-software
1653	IF ( dt_dvrp /= 9999999.9_wp ) CALL init_dvrp
1654
1655	IF ( ocean ) THEN
1656	!
1657	!-- Initialize quantities needed for the ocean model
1658	CALL init_ocean
1659
1660	ELSE
1661	!
1662	!-- Initialize quantities for handling cloud physics
1663	!-- This routine must be called before lpm_init, because
1664	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
1665	!-- lpm_init) is not defined.
1666	CALL init_cloud_physics
1667	ENDIF
1668
1669	!
1670	!-- If required, initialize particles
1671	IF ( particle_advection ) CALL lpm_init
1672
1673	!
1674	!-- Initialize the ws-scheme.
1675	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
1676
1677	!
1678	!-- Setting weighting factors for calculation of perturbation pressure
1679	!-- and turbulent quantities from the RK substeps
1680	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
1681
1682	weight_substep(1) = 1._wp/6._wp
1683	weight_substep(2) = 3._wp/10._wp
1684	weight_substep(3) = 8._wp/15._wp
1685
1686	weight_pres(1) = 1._wp/3._wp
1687	weight_pres(2) = 5._wp/12._wp
1688	weight_pres(3) = 1._wp/4._wp
1689
1690	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
1691
1692	weight_substep(1) = 1._wp/2._wp
1693	weight_substep(2) = 1._wp/2._wp
1694
1695	weight_pres(1) = 1._wp/2._wp
1696	weight_pres(2) = 1._wp/2._wp
1697
1698	ELSE ! for Euler-method
1699
1700	weight_substep(1) = 1.0_wp
1701	weight_pres(1) = 1.0_wp
1702
1703	ENDIF
1704
1705	!
1706	!-- Initialize Rayleigh damping factors
1707	rdf = 0.0_wp
1708	rdf_sc = 0.0_wp
1709	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
1710	IF ( .NOT. ocean ) THEN
1711	DO k = nzb+1, nzt
1712	IF ( zu(k) >= rayleigh_damping_height ) THEN
1713	rdf(k) = rayleigh_damping_factor * &
1714	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
1715	/ ( zu(nzt) - rayleigh_damping_height ) )&
1716	)**2
1717	ENDIF
1718	ENDDO
1719	ELSE
1720	DO k = nzt, nzb+1, -1
1721	IF ( zu(k) <= rayleigh_damping_height ) THEN
1722	rdf(k) = rayleigh_damping_factor * &
1723	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
1724	/ ( rayleigh_damping_height - zu(nzb+1)))&
1725	)**2
1726	ENDIF
1727	ENDDO
1728	ENDIF
1729	ENDIF
1730	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
1731
1732	!
1733	!-- Initialize the starting level and the vertical smoothing factor used for
1734	!-- the external pressure gradient
1735	dp_smooth_factor = 1.0_wp
1736	IF ( dp_external ) THEN
1737	!
1738	!-- Set the starting level dp_level_ind_b only if it has not been set before
1739	!-- (e.g. in init_grid).
1740	IF ( dp_level_ind_b == 0 ) THEN
1741	ind_array = MINLOC( ABS( dp_level_b - zu ) )
1742	dp_level_ind_b = ind_array(1) - 1 + nzb
1743	! MINLOC uses lower array bound 1
1744	ENDIF
1745	IF ( dp_smooth ) THEN
1746	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
1747	DO k = dp_level_ind_b+1, nzt
1748	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
1749	( REAL( k - dp_level_ind_b, KIND=wp ) / &
1750	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
1751	ENDDO
1752	ENDIF
1753	ENDIF
1754
1755	!
1756	!-- Initialize damping zone for the potential temperature in case of
1757	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
1758	!-- at the inflow boundary and decreases to zero at pt_damping_width.
1759	ptdf_x = 0.0_wp
1760	ptdf_y = 0.0_wp
1761	IF ( bc_lr_dirrad ) THEN
1762	DO i = nxl, nxr
1763	IF ( ( i * dx ) < pt_damping_width ) THEN
1764	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
1765	REAL( pt_damping_width - i * dx, KIND=wp ) / ( &
1766	REAL( pt_damping_width, KIND=wp ) ) ) )**2
1767	ENDIF
1768	ENDDO
1769	ELSEIF ( bc_lr_raddir ) THEN
1770	DO i = nxl, nxr
1771	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
1772	ptdf_x(i) = pt_damping_factor * &
1773	SIN( pi * 0.5_wp * &
1774	( ( i - nx ) * dx + pt_damping_width ) / &
1775	REAL( pt_damping_width, KIND=wp ) )**2
1776	ENDIF
1777	ENDDO
1778	ELSEIF ( bc_ns_dirrad ) THEN
1779	DO j = nys, nyn
1780	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
1781	ptdf_y(j) = pt_damping_factor * &
1782	SIN( pi * 0.5_wp * &
1783	( ( j - ny ) * dy + pt_damping_width ) / &
1784	REAL( pt_damping_width, KIND=wp ) )**2
1785	ENDIF
1786	ENDDO
1787	ELSEIF ( bc_ns_raddir ) THEN
1788	DO j = nys, nyn
1789	IF ( ( j * dy ) < pt_damping_width ) THEN
1790	ptdf_y(j) = pt_damping_factor * &
1791	SIN( pi * 0.5_wp * &
1792	( pt_damping_width - j * dy ) / &
1793	REAL( pt_damping_width, KIND=wp ) )**2
1794	ENDIF
1795	ENDDO
1796	ENDIF
1797
1798	!
1799	!-- Initialize local summation arrays for routine flow_statistics.
1800	!-- This is necessary because they may not yet have been initialized when they
1801	!-- are called from flow_statistics (or - depending on the chosen model run -
1802	!-- are never initialized)
1803	sums_divnew_l = 0.0_wp
1804	sums_divold_l = 0.0_wp
1805	sums_l_l = 0.0_wp
1806	sums_up_fraction_l = 0.0_wp
1807	sums_wsts_bc_l = 0.0_wp
1808
1809	!
1810	!-- Pre-set masks for regional statistics. Default is the total model domain.
1811	!-- Ghost points are excluded because counting values at the ghost boundaries
1812	!-- would bias the statistics
1813	rmask = 1.0_wp
1814	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
1815	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
1816
1817	!
1818	!-- User-defined initializing actions. Check afterwards, if maximum number
1819	!-- of allowed timeseries is exceeded
1820	CALL user_init
1821
1822	IF ( dots_num > dots_max ) THEN
1823	WRITE( message_string, * ) 'number of time series quantities exceeds', &
1824	' its maximum of dots_max = ', dots_max, &
1825	' &Please increase dots_max in modules.f90.'
1826	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
1827	ENDIF
1828
1829	!
1830	!-- Input binary data file is not needed anymore. This line must be placed
1831	!-- after call of user_init!
1832	CALL close_file( 13 )
1833
1834	!
1835	!-- Compute total sum of active mask grid points
1836	!-- ngp_2dh: number of grid points of a horizontal cross section through the
1837	!-- total domain
1838	!-- ngp_3d: number of grid points of the total domain
1839	ngp_2dh_outer_l = 0
1840	ngp_2dh_outer = 0
1841	ngp_2dh_s_inner_l = 0
1842	ngp_2dh_s_inner = 0
1843	ngp_2dh_l = 0
1844	ngp_2dh = 0
1845	ngp_3d_inner_l = 0.0_wp
1846	ngp_3d_inner = 0
1847	ngp_3d = 0
1848	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
1849
1850	DO sr = 0, statistic_regions
1851	DO i = nxl, nxr
1852	DO j = nys, nyn
1853	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
1854	!
1855	!-- All xy-grid points
1856	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
1857	!
1858	!-- xy-grid points above topography
1859	DO k = nzb_s_outer(j,i), nz + 1
1860	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
1861	ENDDO
1862	DO k = nzb_s_inner(j,i), nz + 1
1863	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
1864	ENDDO
1865	!
1866	!-- All grid points of the total domain above topography
1867	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
1868	( nz - nzb_s_inner(j,i) + 2 )
1869	ENDIF
1870	ENDDO
1871	ENDDO
1872	ENDDO
1873
1874	sr = statistic_regions + 1
1875	#if defined( __parallel )
1876	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1877	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
1878	comm2d, ierr )
1879	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1880	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
1881	MPI_INTEGER, MPI_SUM, comm2d, ierr )
1882	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1883	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
1884	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
1885	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1886	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
1887	MPI_SUM, comm2d, ierr )
1888	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
1889	#else
1890	ngp_2dh = ngp_2dh_l
1891	ngp_2dh_outer = ngp_2dh_outer_l
1892	ngp_2dh_s_inner = ngp_2dh_s_inner_l
1893	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
1894	#endif
1895
1896	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
1897	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
1898
1899	!
1900	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
1901	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
1902	!-- the respective subdomain lie below the surface topography
1903	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
1904	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
1905	ngp_3d_inner(:) )
1906	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
1907
1908	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, ngp_3d_inner_tmp )
1909
1910	CALL location_message( 'leaving init_3d_model' )
1911
1912	END SUBROUTINE init_3d_model

Note: See TracBrowser for help on using the repository browser.

Download in other formats:

| Impressum | ©Leibniz Universität Hannover |