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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1113

Last change on this file since 1113 was 1113, checked in by raasch, 11 years ago
GPU porting of boundary conditions and routine pres; index bug removec from radiation boundary condition
Property svn:keywords set to `Id`
File size: 63.5 KB

Line
1	#if defined( __ibmy_special )
2	@PROCESS NOOPTimize
3	#endif
4	SUBROUTINE init_3d_model
5
6	!--------------------------------------------------------------------------------!
7	! This file is part of PALM.
8	!
9	! PALM is free software: you can redistribute it and/or modify it under the terms
10	! of the GNU General Public License as published by the Free Software Foundation,
11	! either version 3 of the License, or (at your option) any later version.
12	!
13	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
14	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
15	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
16	!
17	! You should have received a copy of the GNU General Public License along with
18	! PALM. If not, see <http://www.gnu.org/licenses/>.
19	!
20	! Copyright 1997-2012 Leibniz University Hannover
21	!--------------------------------------------------------------------------------!
22	!
23	! Current revisions:
24	! ------------------
25	! openACC directive modified
26	!
27	! Former revisions:
28	! -----------------
29	! $Id: init_3d_model.f90 1113 2013-03-10 02:48:14Z raasch $
30	!
31	! 1111 2013-03-08 23:54:10Z raasch
32	! openACC directives added for pres
33	! array diss allocated only if required
34	!
35	! 1092 2013-02-02 11:24:22Z raasch
36	! unused variables removed
37	!
38	! 1065 2012-11-22 17:42:36Z hoffmann
39	! allocation of diss (dissipation rate) in case of turbulence = .TRUE. added
40	!
41	! 1053 2012-11-13 17:11:03Z hoffmann
42	! allocation and initialisation of necessary data arrays for the two-moment
43	! cloud physics scheme the two new prognostic equations (nr, qr):
44	! +dr, lambda_r, mu_r, sed_, xr, s, sws, swst, , _p, t_m, _1, _2, _3,
45	! +tend_*, prr
46	!
47	! 1036 2012-10-22 13:43:42Z raasch
48	! code put under GPL (PALM 3.9)
49	!
50	! 1032 2012-10-21 13:03:21Z letzel
51	! save memory by not allocating pt_2 in case of neutral = .T.
52	!
53	! 1025 2012-10-07 16:04:41Z letzel
54	! bugfix: swap indices of mask for ghost boundaries
55	!
56	! 1015 2012-09-27 09:23:24Z raasch
57	! mask is set to zero for ghost boundaries
58	!
59	! 1010 2012-09-20 07:59:54Z raasch
60	! cpp switch __nopointer added for pointer free version
61	!
62	! 1003 2012-09-14 14:35:53Z raasch
63	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
64	!
65	! 1001 2012-09-13 14:08:46Z raasch
66	! all actions concerning leapfrog scheme removed
67	!
68	! 996 2012-09-07 10:41:47Z raasch
69	! little reformatting
70	!
71	! 978 2012-08-09 08:28:32Z fricke
72	! outflow damping layer removed
73	! roughness length for scalar quantites z0h added
74	! damping zone for the potential temperatur in case of non-cyclic lateral
75	! boundaries added
76	! initialization of ptdf_x, ptdf_y
77	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
78	!
79	! 849 2012-03-15 10:35:09Z raasch
80	! init_particles renamed lpm_init
81	!
82	! 825 2012-02-19 03:03:44Z raasch
83	! wang_collision_kernel renamed wang_kernel
84	!
85	! 790 2011-11-29 03:11:20Z raasch
86	! diss is also allocated in case that the Wang kernel is used
87	!
88	! 787 2011-11-28 12:49:05Z heinze $
89	! bugfix: call init_advec in every case - not only for inital runs
90	!
91	! 785 2011-11-28 09:47:19Z raasch
92	! initialization of rdf_sc
93	!
94	! 767 2011-10-14 06:39:12Z raasch
95	! adjustments concerning implementation of prescribed u,v-profiles
96	! bugfix: dirichlet_0 conditions for ug/vg moved to check_parameters
97	!
98	! 759 2011-09-15 13:58:31Z raasch
99	! Splitting of parallel I/O in blocks of PEs
100	! Bugfix: No zero assignments to volume_flow_initial and volume_flow_area in
101	! case of normal restart runs.
102	!
103	! 713 2011-03-30 14:21:21Z suehring
104	! weight_substep and weight_pres are given as fractions.
105	!
106	! 709 2011-03-30 09:31:40Z raasch
107	! formatting adjustments
108	!
109	! 707 2011-03-29 11:39:40Z raasch
110	! p_sub renamed p_loc and allocated depending on the chosen pressure solver,
111	! initial assignments of zero to array p for iterative solvers only,
112	! bc_lr/ns replaced by bc_lr/ns_dirrad/raddir
113	!
114	! 680 2011-02-04 23:16:06Z gryschka
115	! bugfix: volume_flow_control
116	!
117	! 673 2011-01-18 16:19:48Z suehring
118	! weight_substep (moved from advec_ws) and weight_pres added.
119	! Allocate p_sub when using Multigrid or SOR solver.
120	! Call of ws_init moved behind the if requests.
121	!
122	! 667 2010-12-23 12:06:00Z suehring/gryschka
123	! nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng in loops and
124	! allocation of arrays. Calls of exchange_horiz are modified.
125	! Call ws_init to initialize arrays needed for calculating statisticas and for
126	! optimization when ws-scheme is used.
127	! Initial volume flow is now calculated by using the variable hom_sum.
128	! Therefore the correction of initial volume flow for non-flat topography
129	! removed (removed u_nzb_p1_for_vfc and v_nzb_p1_for_vfc)
130	! Changed surface boundary conditions for u and v in case of ibc_uv_b == 0 from
131	! mirror to Dirichlet boundary conditions (u=v=0), so that k=nzb is
132	! representative for the height z0.
133	! Bugfix: type conversion of '1' to 64bit for the MAX function (ngp_3d_inner)
134	!
135	! 622 2010-12-10 08:08:13Z raasch
136	! optional barriers included in order to speed up collective operations
137	!
138	! 560 2010-09-09 10:06:09Z weinreis
139	! bugfix: correction of calculating ngp_3d for 64 bit
140	!
141	! 485 2010-02-05 10:57:51Z raasch
142	! calculation of ngp_3d + ngp_3d_inner changed because they have now 64 bit
143	!
144	! 407 2009-12-01 15:01:15Z maronga
145	! var_ts is replaced by dots_max
146	! Enabled passive scalar/humidity wall fluxes for non-flat topography
147	!
148	! 388 2009-09-23 09:40:33Z raasch
149	! Initialization of prho added.
150	! bugfix: correction of initial volume flow for non-flat topography
151	! bugfix: zero initialization of arrays within buildings for 'cyclic_fill'
152	! bugfix: avoid that ngp_2dh_s_inner becomes zero
153	! initializing_actions='read_data_for_recycling' renamed to 'cyclic_fill', now
154	! independent of turbulent_inflow
155	! Output of messages replaced by message handling routine.
156	! Set the starting level and the vertical smoothing factor used for
157	! the external pressure gradient
158	! +conserve_volume_flow_mode: 'default', 'initial_profiles', 'inflow_profile'
159	! and 'bulk_velocity'
160	! If the inversion height calculated by the prerun is zero,
161	! inflow_damping_height must be explicitly specified.
162	!
163	! 181 2008-07-30 07:07:47Z raasch
164	! bugfix: zero assignments to tendency arrays in case of restarts,
165	! further extensions and modifications in the initialisation of the plant
166	! canopy model,
167	! allocation of hom_sum moved to parin, initialization of spectrum_x\|y directly
168	! after allocating theses arrays,
169	! read data for recycling added as new initialization option,
170	! dummy allocation for diss
171	!
172	! 138 2007-11-28 10:03:58Z letzel
173	! New counter ngp_2dh_s_inner.
174	! Allow new case bc_uv_t = 'dirichlet_0' for channel flow.
175	! Corrected calculation of initial volume flow for 'set_1d-model_profiles' and
176	! 'set_constant_profiles' in case of buildings in the reference cross-sections.
177	!
178	! 108 2007-08-24 15:10:38Z letzel
179	! Flux initialization in case of coupled runs, +momentum fluxes at top boundary,
180	! +arrays for phase speed c_u, c_v, c_w, indices for u\|v\|w_m_l\|r changed
181	! +qswst_remote in case of atmosphere model with humidity coupled to ocean
182	! Rayleigh damping for ocean, optionally calculate km and kh from initial
183	! TKE e_init
184	!
185	! 97 2007-06-21 08:23:15Z raasch
186	! Initialization of salinity, call of init_ocean
187	!
188	! 87 2007-05-22 15:46:47Z raasch
189	! var_hom and var_sum renamed pr_palm
190	!
191	! 75 2007-03-22 09:54:05Z raasch
192	! Arrays for radiation boundary conditions are allocated (u_m_l, u_m_r, etc.),
193	! bugfix for cases with the outflow damping layer extending over more than one
194	! subdomain, moisture renamed humidity,
195	! new initializing action "by_user" calls user_init_3d_model,
196	! precipitation_amount/rate, ts_value are allocated, +module netcdf_control,
197	! initial velocities at nzb+1 are regarded for volume
198	! flow control in case they have been set zero before (to avoid small timesteps)
199	! -uvmean_outflow, uxrp, vynp eliminated
200	!
201	! 19 2007-02-23 04:53:48Z raasch
202	! +handling of top fluxes
203	!
204	! RCS Log replace by Id keyword, revision history cleaned up
205	!
206	! Revision 1.49 2006/08/22 15:59:07 raasch
207	! No optimization of this file on the ibmy (Yonsei Univ.)
208	!
209	! Revision 1.1 1998/03/09 16:22:22 raasch
210	! Initial revision
211	!
212	!
213	! Description:
214	! ------------
215	! Allocation of arrays and initialization of the 3D model via
216	! a) pre-run the 1D model
217	! or
218	! b) pre-set constant linear profiles
219	! or
220	! c) read values of a previous run
221	!------------------------------------------------------------------------------!
222
223	USE advec_ws
224	USE arrays_3d
225	USE averaging
226	USE cloud_parameters
227	USE constants
228	USE control_parameters
229	USE cpulog
230	USE grid_variables
231	USE indices
232	USE interfaces
233	USE model_1d
234	USE netcdf_control
235	USE particle_attributes
236	USE pegrid
237	USE profil_parameter
238	USE random_function_mod
239	USE statistics
240	USE transpose_indices
241
242	IMPLICIT NONE
243
244	INTEGER :: i, ind_array(1), j, k, sr
245
246	INTEGER, DIMENSION(:), ALLOCATABLE :: ngp_2dh_l
247
248	INTEGER, DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l, &
249	ngp_2dh_s_inner_l
250
251	REAL, DIMENSION(1:2) :: volume_flow_area_l, volume_flow_initial_l
252
253	REAL, DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l, ngp_3d_inner_tmp
254
255
256	!
257	!-- Allocate arrays
258	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
259	ngp_3d(0:statistic_regions), &
260	ngp_3d_inner(0:statistic_regions), &
261	ngp_3d_inner_l(0:statistic_regions), &
262	ngp_3d_inner_tmp(0:statistic_regions), &
263	sums_divnew_l(0:statistic_regions), &
264	sums_divold_l(0:statistic_regions) )
265	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
266	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
267	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
268	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
269	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
270	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
271	sums(nzb:nzt+1,pr_palm+max_pr_user), &
272	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
273	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
274	sums_up_fraction_l(10,3,0:statistic_regions), &
275	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
276	ts_value(dots_max,0:statistic_regions) )
277	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
278
279	ALLOCATE( rif(nysg:nyng,nxlg:nxrg), shf(nysg:nyng,nxlg:nxrg), &
280	ts(nysg:nyng,nxlg:nxrg), tswst(nysg:nyng,nxlg:nxrg), &
281	us(nysg:nyng,nxlg:nxrg), usws(nysg:nyng,nxlg:nxrg), &
282	uswst(nysg:nyng,nxlg:nxrg), vsws(nysg:nyng,nxlg:nxrg), &
283	vswst(nysg:nyng,nxlg:nxrg), z0(nysg:nyng,nxlg:nxrg), &
284	z0h(nysg:nyng,nxlg:nxrg) )
285
286	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
287	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
288	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
289	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
290	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
291
292	#if defined( __nopointer )
293	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
294	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
295	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
296	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
297	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
298	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
299	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
300	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
301	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
302	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
303	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
304	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
305	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
306	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
307	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
308	#else
309	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
310	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
311	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
312	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
313	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
314	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
315	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
316	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
317	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
318	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
319	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
320	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
321	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
322	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
323	IF ( .NOT. neutral ) THEN
324	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
325	ENDIF
326	#endif
327
328	!
329	!-- Following array is required for perturbation pressure within the iterative
330	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
331	!-- the weighted average of the substeps and cannot be used in the Poisson
332	!-- solver.
333	IF ( psolver == 'sor' ) THEN
334	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
335	ELSEIF ( psolver == 'multigrid' ) THEN
336	!
337	!-- For performance reasons, multigrid is using one ghost layer only
338	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
339	ENDIF
340
341	!
342	!-- Array for storing constant coeffficients of the tridiagonal solver
343	IF ( psolver == 'poisfft' ) THEN
344	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
345	ENDIF
346
347	IF ( humidity .OR. passive_scalar ) THEN
348	!
349	!-- 2D-humidity/scalar arrays
350	ALLOCATE ( qs(nysg:nyng,nxlg:nxrg), &
351	qsws(nysg:nyng,nxlg:nxrg), &
352	qswst(nysg:nyng,nxlg:nxrg) )
353
354	!
355	!-- 3D-humidity/scalar arrays
356	#if defined( __nopointer )
357	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
358	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
359	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
360	#else
361	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
362	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
363	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
364	#endif
365
366	!
367	!-- 3D-arrays needed for humidity only
368	IF ( humidity ) THEN
369	#if defined( __nopointer )
370	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
371	#else
372	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
373	#endif
374
375	IF ( cloud_physics ) THEN
376
377	!
378	!-- Liquid water content
379	#if defined( __nopointer )
380	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
381	#else
382	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
383	#endif
384	!
385	!-- Precipitation amount and rate (only needed if output is switched)
386	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
387	precipitation_rate(nysg:nyng,nxlg:nxrg) )
388
389	IF ( icloud_scheme == 0 ) THEN
390	!
391	!-- 1D-rain sedimentation fluxes and rain drop size distribution
392	!-- properties
393	ALLOCATE ( dr(nzb:nzt+1), lambda_r(nzb:nzt+1), &
394	mu_r(nzb:nzt+1), sed_q(nzb:nzt+1), &
395	sed_qr(nzb:nzt+1), sed_nr(nzb:nzt+1),&
396	xr(nzb:nzt+1) )
397	!
398	!-- 2D-rain water content and rain drop concentration arrays
399	ALLOCATE ( qrs(nysg:nyng,nxlg:nxrg), &
400	qrsws(nysg:nyng,nxlg:nxrg), &
401	qrswst(nysg:nyng,nxlg:nxrg), &
402	nrs(nysg:nyng,nxlg:nxrg), &
403	nrsws(nysg:nyng,nxlg:nxrg), &
404	nrswst(nysg:nyng,nxlg:nxrg) )
405	!
406	!-- 3D-rain water content, rain drop concentration arrays
407	#if defined( __nopointer )
408	ALLOCATE( nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
409	nr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
410	qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
411	qr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
412	tnr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
413	tqr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
414	#else
415	ALLOCATE( nr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
416	nr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
417	nr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
418	qr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
419	qr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
420	qr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
421	#endif
422	!
423	!-- 3D-tendency arrays
424	ALLOCATE( tend_nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
425	tend_pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
426	tend_q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
427	tend_qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
428	!
429	!-- 3d-precipitation rate
430	IF ( precipitation ) THEN
431	ALLOCATE( prr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
432	ENDIF
433
434	ENDIF
435	ENDIF
436
437	IF ( cloud_droplets ) THEN
438	!
439	!-- Liquid water content, change in liquid water content
440	#if defined( __nopointer )
441	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
442	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
443	#else
444	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
445	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
446	#endif
447	!
448	!-- Real volume of particles (with weighting), volume of particles
449	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
450	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
451	ENDIF
452
453	ENDIF
454
455	ENDIF
456
457	IF ( ocean ) THEN
458	ALLOCATE( saswsb(nysg:nyng,nxlg:nxrg), &
459	saswst(nysg:nyng,nxlg:nxrg) )
460	#if defined( __nopointer )
461	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
462	rho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
463	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
464	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
465	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
466	#else
467	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
468	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
469	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
470	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
471	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
472	prho => prho_1
473	rho => rho_1 ! routines calc_mean_profile and diffusion_e require
474	! density to be apointer
475	#endif
476	IF ( humidity_remote ) THEN
477	ALLOCATE( qswst_remote(nysg:nyng,nxlg:nxrg))
478	qswst_remote = 0.0
479	ENDIF
480	ENDIF
481
482	!
483	!-- 3D-array for storing the dissipation, needed for calculating the sgs
484	!-- particle velocities
485	IF ( use_sgs_for_particles .OR. wang_kernel .OR. turbulence ) THEN
486	ALLOCATE ( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
487	ENDIF
488
489	IF ( dt_dosp /= 9999999.9 ) THEN
490	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
491	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
492	spectrum_x = 0.0
493	spectrum_y = 0.0
494	ENDIF
495
496	!
497	!-- 3D-arrays for the leaf area density and the canopy drag coefficient
498	IF ( plant_canopy ) THEN
499	ALLOCATE ( lad_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
500	lad_u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
501	lad_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
502	lad_w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
503	cdc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
504
505	IF ( passive_scalar ) THEN
506	ALLOCATE ( sls(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
507	sec(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
508	ENDIF
509
510	IF ( cthf /= 0.0 ) THEN
511	ALLOCATE ( lai(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
512	canopy_heat_flux(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
513	ENDIF
514
515	ENDIF
516
517	!
518	!-- 4D-array for storing the Rif-values at vertical walls
519	IF ( topography /= 'flat' ) THEN
520	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
521	rif_wall = 0.0
522	ENDIF
523
524	!
525	!-- Arrays to store velocity data from t-dt and the phase speeds which
526	!-- are needed for radiation boundary conditions
527	IF ( outflow_l ) THEN
528	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
529	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
530	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
531	ENDIF
532	IF ( outflow_r ) THEN
533	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
534	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
535	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
536	ENDIF
537	IF ( outflow_l .OR. outflow_r ) THEN
538	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
539	c_w(nzb:nzt+1,nysg:nyng) )
540	ENDIF
541	IF ( outflow_s ) THEN
542	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
543	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
544	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
545	ENDIF
546	IF ( outflow_n ) THEN
547	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
548	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
549	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
550	ENDIF
551	IF ( outflow_s .OR. outflow_n ) THEN
552	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
553	c_w(nzb:nzt+1,nxlg:nxrg) )
554	ENDIF
555	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
556	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
557	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
558	ENDIF
559
560
561	#if ! defined( __nopointer )
562	!
563	!-- Initial assignment of the pointers
564	e => e_1; e_p => e_2; te_m => e_3
565	IF ( .NOT. neutral ) THEN
566	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
567	ELSE
568	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
569	ENDIF
570	u => u_1; u_p => u_2; tu_m => u_3
571	v => v_1; v_p => v_2; tv_m => v_3
572	w => w_1; w_p => w_2; tw_m => w_3
573
574	IF ( humidity .OR. passive_scalar ) THEN
575	q => q_1; q_p => q_2; tq_m => q_3
576	IF ( humidity ) THEN
577	vpt => vpt_1
578	IF ( cloud_physics ) THEN
579	ql => ql_1
580	IF ( icloud_scheme == 0 ) THEN
581	qr => qr_1; qr_p => qr_2; tqr_m => qr_3
582	nr => nr_1; nr_p => nr_2; tnr_m => nr_3
583	ENDIF
584	ENDIF
585	ENDIF
586	IF ( cloud_droplets ) THEN
587	ql => ql_1
588	ql_c => ql_2
589	ENDIF
590	ENDIF
591
592	IF ( ocean ) THEN
593	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
594	ENDIF
595	#endif
596
597	!
598	!-- Allocate arrays containing the RK coefficient for calculation of
599	!-- perturbation pressure and turbulent fluxes. At this point values are
600	!-- set for pressure calculation during initialization (where no timestep
601	!-- is done). Further below the values needed within the timestep scheme
602	!-- will be set.
603	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
604	weight_pres(1:intermediate_timestep_count_max) )
605	weight_substep = 1.0
606	weight_pres = 1.0
607	intermediate_timestep_count = 1 ! needed when simulated_time = 0.0
608
609	!
610	!-- Initialize model variables
611	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
612	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
613	!
614	!-- First model run of a possible job queue.
615	!-- Initial profiles of the variables must be computes.
616	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
617	!
618	!-- Use solutions of the 1D model as initial profiles,
619	!-- start 1D model
620	CALL init_1d_model
621	!
622	!-- Transfer initial profiles to the arrays of the 3D model
623	DO i = nxlg, nxrg
624	DO j = nysg, nyng
625	e(:,j,i) = e1d
626	kh(:,j,i) = kh1d
627	km(:,j,i) = km1d
628	pt(:,j,i) = pt_init
629	u(:,j,i) = u1d
630	v(:,j,i) = v1d
631	ENDDO
632	ENDDO
633
634	IF ( humidity .OR. passive_scalar ) THEN
635	DO i = nxlg, nxrg
636	DO j = nysg, nyng
637	q(:,j,i) = q_init
638	ENDDO
639	ENDDO
640	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
641	DO i = nxlg, nxrg
642	DO j = nysg, nyng
643	qr(:,j,i) = qr_init
644	nr(:,j,i) = nr_init
645	ENDDO
646	ENDDO
647	ENDIF
648	ENDIF
649
650	IF ( .NOT. constant_diffusion ) THEN
651	DO i = nxlg, nxrg
652	DO j = nysg, nyng
653	e(:,j,i) = e1d
654	ENDDO
655	ENDDO
656	!
657	!-- Store initial profiles for output purposes etc.
658	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
659
660	IF ( prandtl_layer ) THEN
661	rif = rif1d(nzb+1)
662	ts = 0.0 ! could actually be computed more accurately in the
663	! 1D model. Update when opportunity arises.
664	us = us1d
665	usws = usws1d
666	vsws = vsws1d
667	ELSE
668	ts = 0.0 ! must be set, because used in
669	rif = 0.0 ! flowste
670	us = 0.0
671	usws = 0.0
672	vsws = 0.0
673	ENDIF
674
675	ELSE
676	e = 0.0 ! must be set, because used in
677	rif = 0.0 ! flowste
678	ts = 0.0
679	us = 0.0
680	usws = 0.0
681	vsws = 0.0
682	ENDIF
683	uswst = top_momentumflux_u
684	vswst = top_momentumflux_v
685
686	!
687	!-- In every case qs = 0.0 (see also pt)
688	!-- This could actually be computed more accurately in the 1D model.
689	!-- Update when opportunity arises!
690	IF ( humidity .OR. passive_scalar ) THEN
691	qs = 0.0
692	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
693	qrs = 0.0
694	nrs = 0.0
695	ENDIF
696	ENDIF
697
698	!
699	!-- inside buildings set velocities back to zero
700	IF ( topography /= 'flat' ) THEN
701	DO i = nxl-1, nxr+1
702	DO j = nys-1, nyn+1
703	u(nzb:nzb_u_inner(j,i),j,i) = 0.0
704	v(nzb:nzb_v_inner(j,i),j,i) = 0.0
705	ENDDO
706	ENDDO
707
708	!
709	!-- WARNING: The extra boundary conditions set after running the
710	!-- ------- 1D model impose an error on the divergence one layer
711	!-- below the topography; need to correct later
712	!-- ATTENTION: Provisional correction for Piacsek & Williams
713	!-- --------- advection scheme: keep u and v zero one layer below
714	!-- the topography.
715	IF ( ibc_uv_b == 1 ) THEN
716	!
717	!-- Neumann condition
718	DO i = nxl-1, nxr+1
719	DO j = nys-1, nyn+1
720	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
721	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
722	ENDDO
723	ENDDO
724
725	ENDIF
726
727	ENDIF
728
729	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
730	THEN
731	!
732	!-- Use constructed initial profiles (velocity constant with height,
733	!-- temperature profile with constant gradient)
734	DO i = nxlg, nxrg
735	DO j = nysg, nyng
736	pt(:,j,i) = pt_init
737	u(:,j,i) = u_init
738	v(:,j,i) = v_init
739	ENDDO
740	ENDDO
741
742	!
743	!-- Set initial horizontal velocities at the lowest computational grid
744	!-- levels to zero in order to avoid too small time steps caused by the
745	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
746	!-- in the limiting formula!). The original values are stored to be later
747	!-- used for volume flow control.
748	DO i = nxlg, nxrg
749	DO j = nysg, nyng
750	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0
751	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0
752	ENDDO
753	ENDDO
754
755	IF ( humidity .OR. passive_scalar ) THEN
756	DO i = nxlg, nxrg
757	DO j = nysg, nyng
758	q(:,j,i) = q_init
759	ENDDO
760	ENDDO
761	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
762	DO i = nxlg, nxrg
763	DO j = nysg, nyng
764	qr(:,j,i) = qr_init
765	nr(:,j,i) = nr_init
766	ENDDO
767	ENDDO
768	ENDIF
769	ENDIF
770
771	IF ( ocean ) THEN
772	DO i = nxlg, nxrg
773	DO j = nysg, nyng
774	sa(:,j,i) = sa_init
775	ENDDO
776	ENDDO
777	ENDIF
778
779	IF ( constant_diffusion ) THEN
780	km = km_constant
781	kh = km / prandtl_number
782	e = 0.0
783	ELSEIF ( e_init > 0.0 ) THEN
784	DO k = nzb+1, nzt
785	km(k,:,:) = 0.1 * l_grid(k) * SQRT( e_init )
786	ENDDO
787	km(nzb,:,:) = km(nzb+1,:,:)
788	km(nzt+1,:,:) = km(nzt,:,:)
789	kh = km / prandtl_number
790	e = e_init
791	ELSE
792	IF ( .NOT. ocean ) THEN
793	kh = 0.01 ! there must exist an initial diffusion, because
794	km = 0.01 ! otherwise no TKE would be produced by the
795	! production terms, as long as not yet
796	! e = (u/cm)*2 at k=nzb+1
797	ELSE
798	kh = 0.00001
799	km = 0.00001
800	ENDIF
801	e = 0.0
802	ENDIF
803	rif = 0.0
804	ts = 0.0
805	us = 0.0
806	usws = 0.0
807	uswst = top_momentumflux_u
808	vsws = 0.0
809	vswst = top_momentumflux_v
810	IF ( humidity .OR. passive_scalar ) qs = 0.0
811
812	!
813	!-- Compute initial temperature field and other constants used in case
814	!-- of a sloping surface
815	IF ( sloping_surface ) CALL init_slope
816
817	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
818	THEN
819	!
820	!-- Initialization will completely be done by the user
821	CALL user_init_3d_model
822
823	ENDIF
824	!
825	!-- Bottom boundary
826	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
827	u(nzb,:,:) = 0.0
828	v(nzb,:,:) = 0.0
829	ENDIF
830
831	!
832	!-- Apply channel flow boundary condition
833	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
834	u(nzt+1,:,:) = 0.0
835	v(nzt+1,:,:) = 0.0
836	ENDIF
837
838	!
839	!-- Calculate virtual potential temperature
840	IF ( humidity ) vpt = pt * ( 1.0 + 0.61 * q )
841
842	!
843	!-- Store initial profiles for output purposes etc.
844	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
845	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
846	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
847	hom(nzb,1,5,:) = 0.0
848	hom(nzb,1,6,:) = 0.0
849	ENDIF
850	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
851	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
852	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
853
854	IF ( ocean ) THEN
855	!
856	!-- Store initial salinity profile
857	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
858	ENDIF
859
860	IF ( humidity ) THEN
861	!
862	!-- Store initial profile of total water content, virtual potential
863	!-- temperature
864	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
865	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
866	IF ( cloud_physics .OR. cloud_droplets ) THEN
867	!
868	!-- Store initial profile of specific humidity and potential
869	!-- temperature
870	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
871	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
872	ENDIF
873	ENDIF
874
875	IF ( passive_scalar ) THEN
876	!
877	!-- Store initial scalar profile
878	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
879	ENDIF
880
881	!
882	!-- Initialize fluxes at bottom surface
883	IF ( use_surface_fluxes ) THEN
884
885	IF ( constant_heatflux ) THEN
886	!
887	!-- Heat flux is prescribed
888	IF ( random_heatflux ) THEN
889	CALL disturb_heatflux
890	ELSE
891	shf = surface_heatflux
892	!
893	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
894	IF ( TRIM( topography ) /= 'flat' ) THEN
895	DO i = nxlg, nxrg
896	DO j = nysg, nyng
897	IF ( nzb_s_inner(j,i) /= 0 ) THEN
898	shf(j,i) = wall_heatflux(0)
899	ENDIF
900	ENDDO
901	ENDDO
902	ENDIF
903	ENDIF
904	ENDIF
905
906	!
907	!-- Determine the near-surface water flux
908	IF ( humidity .OR. passive_scalar ) THEN
909	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
910	IF ( constant_waterflux_qr ) THEN
911	qrsws = surface_waterflux_qr
912	ENDIF
913	IF (constant_waterflux_nr ) THEN
914	nrsws = surface_waterflux_nr
915	ENDIF
916	ENDIF
917	IF ( constant_waterflux ) THEN
918	qsws = surface_waterflux
919	!
920	!-- Over topography surface_waterflux is replaced by
921	!-- wall_humidityflux(0)
922	IF ( TRIM( topography ) /= 'flat' ) THEN
923	wall_qflux = wall_humidityflux
924	DO i = nxlg, nxrg
925	DO j = nysg, nyng
926	IF ( nzb_s_inner(j,i) /= 0 ) THEN
927	qsws(j,i) = wall_qflux(0)
928	ENDIF
929	ENDDO
930	ENDDO
931	ENDIF
932	ENDIF
933	ENDIF
934
935	ENDIF
936
937	!
938	!-- Initialize fluxes at top surface
939	!-- Currently, only the heatflux and salinity flux can be prescribed.
940	!-- The latent flux is zero in this case!
941	IF ( use_top_fluxes ) THEN
942
943	IF ( constant_top_heatflux ) THEN
944	!
945	!-- Heat flux is prescribed
946	tswst = top_heatflux
947
948	IF ( humidity .OR. passive_scalar ) THEN
949	qswst = 0.0
950	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
951	nrswst = 0.0
952	qrswst = 0.0
953	ENDIF
954	ENDIF
955
956	IF ( ocean ) THEN
957	saswsb = bottom_salinityflux
958	saswst = top_salinityflux
959	ENDIF
960	ENDIF
961
962	!
963	!-- Initialization in case of a coupled model run
964	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
965	tswst = 0.0
966	ENDIF
967
968	ENDIF
969
970	!
971	!-- Initialize Prandtl layer quantities
972	IF ( prandtl_layer ) THEN
973
974	z0 = roughness_length
975	z0h = z0h_factor * z0
976
977	IF ( .NOT. constant_heatflux ) THEN
978	!
979	!-- Surface temperature is prescribed. Here the heat flux cannot be
980	!-- simply estimated, because therefore rif, u* and theta* would have
981	!-- to be computed by iteration. This is why the heat flux is assumed
982	!-- to be zero before the first time step. It approaches its correct
983	!-- value in the course of the first few time steps.
984	shf = 0.0
985	ENDIF
986
987	IF ( humidity .OR. passive_scalar ) THEN
988	IF ( .NOT. constant_waterflux ) qsws = 0.0
989	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
990	IF ( .NOT. constant_waterflux_qr ) THEN
991	qrsws = 0.0
992	ENDIF
993	IF ( .NOT. constant_waterflux_nr ) THEN
994	nrsws = 0.0
995	ENDIF
996	ENDIF
997	ENDIF
998
999	ENDIF
1000
1001
1002	!
1003	!-- For the moment, vertical velocity is zero
1004	w = 0.0
1005
1006	!
1007	!-- Initialize array sums (must be defined in first call of pres)
1008	sums = 0.0
1009
1010	!
1011	!-- In case of iterative solvers, p must get an initial value
1012	IF ( psolver == 'multigrid' .OR. psolver == 'sor' ) p = 0.0
1013
1014	!
1015	!-- Treating cloud physics, liquid water content and precipitation amount
1016	!-- are zero at beginning of the simulation
1017	IF ( cloud_physics ) THEN
1018	ql = 0.0
1019	IF ( precipitation ) precipitation_amount = 0.0
1020	ENDIF
1021	!
1022	!-- Impose vortex with vertical axis on the initial velocity profile
1023	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
1024	CALL init_rankine
1025	ENDIF
1026
1027	!
1028	!-- Impose temperature anomaly (advection test only)
1029	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
1030	CALL init_pt_anomaly
1031	ENDIF
1032
1033	!
1034	!-- If required, change the surface temperature at the start of the 3D run
1035	IF ( pt_surface_initial_change /= 0.0 ) THEN
1036	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
1037	ENDIF
1038
1039	!
1040	!-- If required, change the surface humidity/scalar at the start of the 3D
1041	!-- run
1042	IF ( ( humidity .OR. passive_scalar ) .AND. &
1043	q_surface_initial_change /= 0.0 ) THEN
1044	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
1045	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
1046	IF ( qr_surface_initial_change /= 0.0 ) THEN
1047	qr(nzb,:,:) = qr(nzb,:,:) + qr_surface_initial_change
1048	ELSEIF ( nr_surface_initial_change /= 0.0 ) THEN
1049	nr(nzb,:,:) = nr(nzb,:,:) + nr_surface_initial_change
1050	ENDIF
1051	ENDIF
1052	ENDIF
1053
1054	!
1055	!-- Initialize the random number generator (from numerical recipes)
1056	CALL random_function_ini
1057
1058	!
1059	!-- Initialize old and new time levels.
1060	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
1061	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1062
1063	IF ( humidity .OR. passive_scalar ) THEN
1064	tq_m = 0.0
1065	q_p = q
1066	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
1067	tqr_m = 0.0
1068	qr_p = qr
1069	tnr_m = 0.0
1070	nr_p = nr
1071	ENDIF
1072	ENDIF
1073
1074	IF ( ocean ) THEN
1075	tsa_m = 0.0
1076	sa_p = sa
1077	ENDIF
1078
1079
1080	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
1081	TRIM( initializing_actions ) == 'cyclic_fill' ) &
1082	THEN
1083	!
1084	!-- When reading data for cyclic fill of 3D prerun data files, read
1085	!-- some of the global variables from the restart file which are required
1086	!-- for initializing the inflow
1087	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1088
1089	DO i = 0, io_blocks-1
1090	IF ( i == io_group ) THEN
1091	CALL read_parts_of_var_list
1092	CALL close_file( 13 )
1093	ENDIF
1094	#if defined( __parallel )
1095	CALL MPI_BARRIER( comm2d, ierr )
1096	#endif
1097	ENDDO
1098
1099	ENDIF
1100
1101	!
1102	!-- Read binary data from restart file
1103	DO i = 0, io_blocks-1
1104	IF ( i == io_group ) THEN
1105	CALL read_3d_binary
1106	ENDIF
1107	#if defined( __parallel )
1108	CALL MPI_BARRIER( comm2d, ierr )
1109	#endif
1110	ENDDO
1111
1112	!
1113	!-- Initialization of the turbulence recycling method
1114	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1115	turbulent_inflow ) THEN
1116	!
1117	!-- First store the profiles to be used at the inflow.
1118	!-- These profiles are the (temporally) and horizontally averaged vertical
1119	!-- profiles from the prerun. Alternatively, prescribed profiles
1120	!-- for u,v-components can be used.
1121	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,5) )
1122
1123	IF ( use_prescribed_profile_data ) THEN
1124	mean_inflow_profiles(:,1) = u_init ! u
1125	mean_inflow_profiles(:,2) = v_init ! v
1126	ELSE
1127	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
1128	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
1129	ENDIF
1130	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
1131	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
1132
1133	!
1134	!-- If necessary, adjust the horizontal flow field to the prescribed
1135	!-- profiles
1136	IF ( use_prescribed_profile_data ) THEN
1137	DO i = nxlg, nxrg
1138	DO j = nysg, nyng
1139	DO k = nzb, nzt+1
1140	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
1141	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
1142	ENDDO
1143	ENDDO
1144	ENDDO
1145	ENDIF
1146
1147	!
1148	!-- Use these mean profiles at the inflow (provided that Dirichlet
1149	!-- conditions are used)
1150	IF ( inflow_l ) THEN
1151	DO j = nysg, nyng
1152	DO k = nzb, nzt+1
1153	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
1154	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
1155	w(k,j,nxlg:-1) = 0.0
1156	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
1157	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
1158	ENDDO
1159	ENDDO
1160	ENDIF
1161
1162	!
1163	!-- Calculate the damping factors to be used at the inflow. For a
1164	!-- turbulent inflow the turbulent fluctuations have to be limited
1165	!-- vertically because otherwise the turbulent inflow layer will grow
1166	!-- in time.
1167	IF ( inflow_damping_height == 9999999.9 ) THEN
1168	!
1169	!-- Default: use the inversion height calculated by the prerun; if
1170	!-- this is zero, inflow_damping_height must be explicitly
1171	!-- specified.
1172	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0 ) THEN
1173	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
1174	ELSE
1175	WRITE( message_string, * ) 'inflow_damping_height must be ',&
1176	'explicitly specified because&the inversion height ', &
1177	'calculated by the prerun is zero.'
1178	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
1179	ENDIF
1180
1181	ENDIF
1182
1183	IF ( inflow_damping_width == 9999999.9 ) THEN
1184	!
1185	!-- Default for the transition range: one tenth of the undamped
1186	!-- layer
1187	inflow_damping_width = 0.1 * inflow_damping_height
1188
1189	ENDIF
1190
1191	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
1192
1193	DO k = nzb, nzt+1
1194
1195	IF ( zu(k) <= inflow_damping_height ) THEN
1196	inflow_damping_factor(k) = 1.0
1197	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
1198	inflow_damping_factor(k) = 1.0 - &
1199	( zu(k) - inflow_damping_height ) / &
1200	inflow_damping_width
1201	ELSE
1202	inflow_damping_factor(k) = 0.0
1203	ENDIF
1204
1205	ENDDO
1206
1207	ENDIF
1208
1209	!
1210	!-- Inside buildings set velocities and TKE back to zero
1211	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1212	topography /= 'flat' ) THEN
1213	!
1214	!-- Inside buildings set velocities and TKE back to zero.
1215	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
1216	!-- maybe revise later.
1217	DO i = nxlg, nxrg
1218	DO j = nysg, nyng
1219	u (nzb:nzb_u_inner(j,i),j,i) = 0.0
1220	v (nzb:nzb_v_inner(j,i),j,i) = 0.0
1221	w (nzb:nzb_w_inner(j,i),j,i) = 0.0
1222	e (nzb:nzb_w_inner(j,i),j,i) = 0.0
1223	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0
1224	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0
1225	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1226	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1227	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1228	ENDDO
1229	ENDDO
1230
1231	ENDIF
1232
1233	!
1234	!-- Calculate initial temperature field and other constants used in case
1235	!-- of a sloping surface
1236	IF ( sloping_surface ) CALL init_slope
1237
1238	!
1239	!-- Initialize new time levels (only done in order to set boundary values
1240	!-- including ghost points)
1241	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1242	IF ( humidity .OR. passive_scalar ) THEN
1243	q_p = q
1244	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
1245	qr_p = qr
1246	nr_p = nr
1247	ENDIF
1248	ENDIF
1249	IF ( ocean ) sa_p = sa
1250
1251	!
1252	!-- Allthough tendency arrays are set in prognostic_equations, they have
1253	!-- have to be predefined here because they are used (but multiplied with 0)
1254	!-- there before they are set.
1255	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
1256	IF ( humidity .OR. passive_scalar ) THEN
1257	tq_m = 0.0
1258	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
1259	tqr_m = 0.0
1260	tnr_m = 0.0
1261	ENDIF
1262	ENDIF
1263	IF ( ocean ) tsa_m = 0.0
1264
1265	ELSE
1266	!
1267	!-- Actually this part of the programm should not be reached
1268	message_string = 'unknown initializing problem'
1269	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
1270	ENDIF
1271
1272
1273	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1274	!
1275	!-- Initialize old timelevels needed for radiation boundary conditions
1276	IF ( outflow_l ) THEN
1277	u_m_l(:,:,:) = u(:,:,1:2)
1278	v_m_l(:,:,:) = v(:,:,0:1)
1279	w_m_l(:,:,:) = w(:,:,0:1)
1280	ENDIF
1281	IF ( outflow_r ) THEN
1282	u_m_r(:,:,:) = u(:,:,nx-1:nx)
1283	v_m_r(:,:,:) = v(:,:,nx-1:nx)
1284	w_m_r(:,:,:) = w(:,:,nx-1:nx)
1285	ENDIF
1286	IF ( outflow_s ) THEN
1287	u_m_s(:,:,:) = u(:,0:1,:)
1288	v_m_s(:,:,:) = v(:,1:2,:)
1289	w_m_s(:,:,:) = w(:,0:1,:)
1290	ENDIF
1291	IF ( outflow_n ) THEN
1292	u_m_n(:,:,:) = u(:,ny-1:ny,:)
1293	v_m_n(:,:,:) = v(:,ny-1:ny,:)
1294	w_m_n(:,:,:) = w(:,ny-1:ny,:)
1295	ENDIF
1296
1297	ENDIF
1298
1299	!
1300	!-- Calculate the initial volume flow at the right and north boundary
1301	IF ( conserve_volume_flow ) THEN
1302
1303	IF ( use_prescribed_profile_data ) THEN
1304
1305	volume_flow_initial_l = 0.0
1306	volume_flow_area_l = 0.0
1307
1308	IF ( nxr == nx ) THEN
1309	DO j = nys, nyn
1310	DO k = nzb_2d(j,nx)+1, nzt
1311	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1312	u_init(k) * dzw(k)
1313	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1314	ENDDO
1315	ENDDO
1316	ENDIF
1317
1318	IF ( nyn == ny ) THEN
1319	DO i = nxl, nxr
1320	DO k = nzb_2d(ny,i)+1, nzt
1321	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1322	v_init(k) * dzw(k)
1323	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1324	ENDDO
1325	ENDDO
1326	ENDIF
1327
1328	#if defined( __parallel )
1329	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1330	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1331	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1332	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1333
1334	#else
1335	volume_flow_initial = volume_flow_initial_l
1336	volume_flow_area = volume_flow_area_l
1337	#endif
1338
1339	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1340
1341	volume_flow_initial_l = 0.0
1342	volume_flow_area_l = 0.0
1343
1344	IF ( nxr == nx ) THEN
1345	DO j = nys, nyn
1346	DO k = nzb_2d(j,nx)+1, nzt
1347	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1348	hom_sum(k,1,0) * dzw(k)
1349	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1350	ENDDO
1351	ENDDO
1352	ENDIF
1353
1354	IF ( nyn == ny ) THEN
1355	DO i = nxl, nxr
1356	DO k = nzb_2d(ny,i)+1, nzt
1357	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1358	hom_sum(k,2,0) * dzw(k)
1359	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1360	ENDDO
1361	ENDDO
1362	ENDIF
1363
1364	#if defined( __parallel )
1365	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1366	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1367	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1368	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1369
1370	#else
1371	volume_flow_initial = volume_flow_initial_l
1372	volume_flow_area = volume_flow_area_l
1373	#endif
1374
1375	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1376
1377	volume_flow_initial_l = 0.0
1378	volume_flow_area_l = 0.0
1379
1380	IF ( nxr == nx ) THEN
1381	DO j = nys, nyn
1382	DO k = nzb_2d(j,nx)+1, nzt
1383	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1384	u(k,j,nx) * dzw(k)
1385	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1386	ENDDO
1387	ENDDO
1388	ENDIF
1389
1390	IF ( nyn == ny ) THEN
1391	DO i = nxl, nxr
1392	DO k = nzb_2d(ny,i)+1, nzt
1393	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1394	v(k,ny,i) * dzw(k)
1395	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1396	ENDDO
1397	ENDDO
1398	ENDIF
1399
1400	#if defined( __parallel )
1401	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1402	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1403	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1404	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1405
1406	#else
1407	volume_flow_initial = volume_flow_initial_l
1408	volume_flow_area = volume_flow_area_l
1409	#endif
1410
1411	ENDIF
1412
1413	!
1414	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
1415	!-- from u\|v_bulk instead
1416	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
1417	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
1418	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
1419	ENDIF
1420
1421	ENDIF
1422
1423	!
1424	!-- Initialize quantities for special advections schemes
1425	CALL init_advec
1426
1427	!
1428	!-- Impose random perturbation on the horizontal velocity field and then
1429	!-- remove the divergences from the velocity field at the initial stage
1430	IF ( create_disturbances .AND. &
1431	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1432	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1433
1434	CALL disturb_field( nzb_u_inner, tend, u )
1435	CALL disturb_field( nzb_v_inner, tend, v )
1436	n_sor = nsor_ini
1437	!$acc data copy( d, ddzu, ddzw, nzb_s_inner, nzb_u_inner, nzb_v_inner, nzb_w_inner, p, tric, u, v, w, weight_pres, weight_substep, tend )
1438	CALL pres
1439	!$acc end data
1440	n_sor = nsor
1441	ENDIF
1442
1443	!
1444	!-- Initialization of the leaf area density
1445	IF ( plant_canopy ) THEN
1446
1447	SELECT CASE ( TRIM( canopy_mode ) )
1448
1449	CASE( 'block' )
1450
1451	DO i = nxlg, nxrg
1452	DO j = nysg, nyng
1453	lad_s(:,j,i) = lad(:)
1454	cdc(:,j,i) = drag_coefficient
1455	IF ( passive_scalar ) THEN
1456	sls(:,j,i) = leaf_surface_concentration
1457	sec(:,j,i) = scalar_exchange_coefficient
1458	ENDIF
1459	ENDDO
1460	ENDDO
1461
1462	CASE DEFAULT
1463
1464	!
1465	!-- The DEFAULT case is reached either if the parameter
1466	!-- canopy mode contains a wrong character string or if the
1467	!-- user has coded a special case in the user interface.
1468	!-- There, the subroutine user_init_plant_canopy checks
1469	!-- which of these two conditions applies.
1470	CALL user_init_plant_canopy
1471
1472	END SELECT
1473
1474	CALL exchange_horiz( lad_s, nbgp )
1475	CALL exchange_horiz( cdc, nbgp )
1476
1477	IF ( passive_scalar ) THEN
1478	CALL exchange_horiz( sls, nbgp )
1479	CALL exchange_horiz( sec, nbgp )
1480	ENDIF
1481
1482	!
1483	!-- Sharp boundaries of the plant canopy in horizontal directions
1484	!-- In vertical direction the interpolation is retained, as the leaf
1485	!-- area density is initialised by prescribing a vertical profile
1486	!-- consisting of piecewise linear segments. The upper boundary
1487	!-- of the plant canopy is now defined by lad_w(pch_index,:,:) = 0.0.
1488
1489	DO i = nxl, nxr
1490	DO j = nys, nyn
1491	DO k = nzb, nzt+1
1492	IF ( lad_s(k,j,i) > 0.0 ) THEN
1493	lad_u(k,j,i) = lad_s(k,j,i)
1494	lad_u(k,j,i+1) = lad_s(k,j,i)
1495	lad_v(k,j,i) = lad_s(k,j,i)
1496	lad_v(k,j+1,i) = lad_s(k,j,i)
1497	ENDIF
1498	ENDDO
1499	DO k = nzb, nzt
1500	lad_w(k,j,i) = 0.5 * ( lad_s(k+1,j,i) + lad_s(k,j,i) )
1501	ENDDO
1502	ENDDO
1503	ENDDO
1504
1505	lad_w(pch_index,:,:) = 0.0
1506	lad_w(nzt+1,:,:) = lad_w(nzt,:,:)
1507
1508	CALL exchange_horiz( lad_u, nbgp )
1509	CALL exchange_horiz( lad_v, nbgp )
1510	CALL exchange_horiz( lad_w, nbgp )
1511
1512	!
1513	!-- Initialisation of the canopy heat source distribution
1514	IF ( cthf /= 0.0 ) THEN
1515	!
1516	!-- Piecewise evaluation of the leaf area index by
1517	!-- integration of the leaf area density
1518	lai(:,:,:) = 0.0
1519	DO i = nxlg, nxrg
1520	DO j = nysg, nyng
1521	DO k = pch_index-1, 0, -1
1522	lai(k,j,i) = lai(k+1,j,i) + &
1523	( 0.5 * ( lad_w(k+1,j,i) + &
1524	lad_s(k+1,j,i) ) * &
1525	( zw(k+1) - zu(k+1) ) ) + &
1526	( 0.5 * ( lad_w(k,j,i) + &
1527	lad_s(k+1,j,i) ) * &
1528	( zu(k+1) - zw(k) ) )
1529	ENDDO
1530	ENDDO
1531	ENDDO
1532
1533	!
1534	!-- Evaluation of the upward kinematic vertical heat flux within the
1535	!-- canopy
1536	DO i = nxlg, nxrg
1537	DO j = nysg, nyng
1538	DO k = 0, pch_index
1539	canopy_heat_flux(k,j,i) = cthf * &
1540	exp( -0.6 * lai(k,j,i) )
1541	ENDDO
1542	ENDDO
1543	ENDDO
1544
1545	!
1546	!-- The near surface heat flux is derived from the heat flux
1547	!-- distribution within the canopy
1548	shf(:,:) = canopy_heat_flux(0,:,:)
1549
1550	ENDIF
1551
1552	ENDIF
1553
1554	!
1555	!-- If required, initialize dvrp-software
1556	IF ( dt_dvrp /= 9999999.9 ) CALL init_dvrp
1557
1558	IF ( ocean ) THEN
1559	!
1560	!-- Initialize quantities needed for the ocean model
1561	CALL init_ocean
1562
1563	ELSE
1564	!
1565	!-- Initialize quantities for handling cloud physics
1566	!-- This routine must be called before lpm_init, because
1567	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
1568	!-- lpm_init) is not defined.
1569	CALL init_cloud_physics
1570	ENDIF
1571
1572	!
1573	!-- If required, initialize particles
1574	IF ( particle_advection ) CALL lpm_init
1575
1576	!
1577	!-- Initialize the ws-scheme.
1578	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
1579
1580	!
1581	!-- Setting weighting factors for calculation of perturbation pressure
1582	!-- and turbulent quantities from the RK substeps
1583	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
1584
1585	weight_substep(1) = 1./6.
1586	weight_substep(2) = 3./10.
1587	weight_substep(3) = 8./15.
1588
1589	weight_pres(1) = 1./3.
1590	weight_pres(2) = 5./12.
1591	weight_pres(3) = 1./4.
1592
1593	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
1594
1595	weight_substep(1) = 1./2.
1596	weight_substep(2) = 1./2.
1597
1598	weight_pres(1) = 1./2.
1599	weight_pres(2) = 1./2.
1600
1601	ELSE ! for Euler-method
1602
1603	weight_substep(1) = 1.0
1604	weight_pres(1) = 1.0
1605
1606	ENDIF
1607
1608	!
1609	!-- Initialize Rayleigh damping factors
1610	rdf = 0.0
1611	rdf_sc = 0.0
1612	IF ( rayleigh_damping_factor /= 0.0 ) THEN
1613	IF ( .NOT. ocean ) THEN
1614	DO k = nzb+1, nzt
1615	IF ( zu(k) >= rayleigh_damping_height ) THEN
1616	rdf(k) = rayleigh_damping_factor * &
1617	( SIN( pi * 0.5 * ( zu(k) - rayleigh_damping_height ) &
1618	/ ( zu(nzt) - rayleigh_damping_height ) )&
1619	)**2
1620	ENDIF
1621	ENDDO
1622	ELSE
1623	DO k = nzt, nzb+1, -1
1624	IF ( zu(k) <= rayleigh_damping_height ) THEN
1625	rdf(k) = rayleigh_damping_factor * &
1626	( SIN( pi * 0.5 * ( rayleigh_damping_height - zu(k) ) &
1627	/ ( rayleigh_damping_height - zu(nzb+1)))&
1628	)**2
1629	ENDIF
1630	ENDDO
1631	ENDIF
1632	ENDIF
1633	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
1634
1635	!
1636	!-- Initialize the starting level and the vertical smoothing factor used for
1637	!-- the external pressure gradient
1638	dp_smooth_factor = 1.0
1639	IF ( dp_external ) THEN
1640	!
1641	!-- Set the starting level dp_level_ind_b only if it has not been set before
1642	!-- (e.g. in init_grid).
1643	IF ( dp_level_ind_b == 0 ) THEN
1644	ind_array = MINLOC( ABS( dp_level_b - zu ) )
1645	dp_level_ind_b = ind_array(1) - 1 + nzb
1646	! MINLOC uses lower array bound 1
1647	ENDIF
1648	IF ( dp_smooth ) THEN
1649	dp_smooth_factor(:dp_level_ind_b) = 0.0
1650	DO k = dp_level_ind_b+1, nzt
1651	dp_smooth_factor(k) = 0.5 * ( 1.0 + SIN( pi * &
1652	( REAL( k - dp_level_ind_b ) / &
1653	REAL( nzt - dp_level_ind_b ) - 0.5 ) ) )
1654	ENDDO
1655	ENDIF
1656	ENDIF
1657
1658	!
1659	!-- Initialize damping zone for the potential temperature in case of
1660	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
1661	!-- at the inflow boundary and decreases to zero at pt_damping_width.
1662	ptdf_x = 0.0
1663	ptdf_y = 0.0
1664	IF ( bc_lr_dirrad .OR. bc_lr_dirneu ) THEN
1665	DO i = nxl, nxr
1666	IF ( ( i * dx ) < pt_damping_width ) THEN
1667	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5 * &
1668	REAL( pt_damping_width - i * dx ) / ( &
1669	REAL( pt_damping_width ) ) ) )**2
1670	ENDIF
1671	ENDDO
1672	ELSEIF ( bc_lr_raddir .OR. bc_lr_neudir ) THEN
1673	DO i = nxl, nxr
1674	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
1675	ptdf_x(i) = pt_damping_factor * &
1676	SIN( pi * 0.5 * ( ( i - nx ) * dx + pt_damping_width ) / &
1677	REAL( pt_damping_width ) )**2
1678	ENDIF
1679	ENDDO
1680	ELSEIF ( bc_ns_dirrad .OR. bc_ns_dirneu ) THEN
1681	DO j = nys, nyn
1682	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
1683	ptdf_y(j) = pt_damping_factor * &
1684	SIN( pi * 0.5 * ( ( j - ny ) * dy + pt_damping_width ) / &
1685	REAL( pt_damping_width ) )**2
1686	ENDIF
1687	ENDDO
1688	ELSEIF ( bc_ns_raddir .OR. bc_ns_neudir ) THEN
1689	DO j = nys, nyn
1690	IF ( ( j * dy ) < pt_damping_width ) THEN
1691	ptdf_y(j) = pt_damping_factor * &
1692	SIN( pi * 0.5 * ( pt_damping_width - j * dy ) / &
1693	REAL( pt_damping_width ) )**2
1694	ENDIF
1695	ENDDO
1696	ENDIF
1697
1698	!
1699	!-- Initialize local summation arrays for routine flow_statistics.
1700	!-- This is necessary because they may not yet have been initialized when they
1701	!-- are called from flow_statistics (or - depending on the chosen model run -
1702	!-- are never initialized)
1703	sums_divnew_l = 0.0
1704	sums_divold_l = 0.0
1705	sums_l_l = 0.0
1706	sums_up_fraction_l = 0.0
1707	sums_wsts_bc_l = 0.0
1708
1709	!
1710	!-- Pre-set masks for regional statistics. Default is the total model domain.
1711	!-- Ghost points are excluded because counting values at the ghost boundaries
1712	!-- would bias the statistics
1713	rmask = 1.0
1714	rmask(:,nxlg:nxl-1,:) = 0.0; rmask(:,nxr+1:nxrg,:) = 0.0
1715	rmask(nysg:nys-1,:,:) = 0.0; rmask(nyn+1:nyng,:,:) = 0.0
1716
1717	!
1718	!-- User-defined initializing actions. Check afterwards, if maximum number
1719	!-- of allowed timeseries is exceeded
1720	CALL user_init
1721
1722	IF ( dots_num > dots_max ) THEN
1723	WRITE( message_string, * ) 'number of time series quantities exceeds', &
1724	' its maximum of dots_max = ', dots_max, &
1725	' &Please increase dots_max in modules.f90.'
1726	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
1727	ENDIF
1728
1729	!
1730	!-- Input binary data file is not needed anymore. This line must be placed
1731	!-- after call of user_init!
1732	CALL close_file( 13 )
1733
1734	!
1735	!-- Compute total sum of active mask grid points
1736	!-- ngp_2dh: number of grid points of a horizontal cross section through the
1737	!-- total domain
1738	!-- ngp_3d: number of grid points of the total domain
1739	ngp_2dh_outer_l = 0
1740	ngp_2dh_outer = 0
1741	ngp_2dh_s_inner_l = 0
1742	ngp_2dh_s_inner = 0
1743	ngp_2dh_l = 0
1744	ngp_2dh = 0
1745	ngp_3d_inner_l = 0.0
1746	ngp_3d_inner = 0
1747	ngp_3d = 0
1748	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
1749
1750	DO sr = 0, statistic_regions
1751	DO i = nxl, nxr
1752	DO j = nys, nyn
1753	IF ( rmask(j,i,sr) == 1.0 ) THEN
1754	!
1755	!-- All xy-grid points
1756	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
1757	!
1758	!-- xy-grid points above topography
1759	DO k = nzb_s_outer(j,i), nz + 1
1760	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
1761	ENDDO
1762	DO k = nzb_s_inner(j,i), nz + 1
1763	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
1764	ENDDO
1765	!
1766	!-- All grid points of the total domain above topography
1767	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
1768	( nz - nzb_s_inner(j,i) + 2 )
1769	ENDIF
1770	ENDDO
1771	ENDDO
1772	ENDDO
1773
1774	sr = statistic_regions + 1
1775	#if defined( __parallel )
1776	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1777	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
1778	comm2d, ierr )
1779	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1780	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
1781	MPI_INTEGER, MPI_SUM, comm2d, ierr )
1782	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1783	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
1784	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
1785	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1786	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
1787	MPI_SUM, comm2d, ierr )
1788	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
1789	#else
1790	ngp_2dh = ngp_2dh_l
1791	ngp_2dh_outer = ngp_2dh_outer_l
1792	ngp_2dh_s_inner = ngp_2dh_s_inner_l
1793	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
1794	#endif
1795
1796	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
1797	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
1798
1799	!
1800	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
1801	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
1802	!-- the respective subdomain lie below the surface topography
1803	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
1804	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
1805	ngp_3d_inner(:) )
1806	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
1807
1808	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, ngp_3d_inner_tmp )
1809
1810
1811	END SUBROUTINE init_3d_model

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