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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1067

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

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