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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1114

Last change on this file since 1114 was 1114, checked in by raasch, 11 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	!
27	! Former revisions:
28	! -----------------
29	! $Id: init_3d_model.f90 1114 2013-03-10 03:25:57Z raasch $
30	!
31	! 1113 2013-03-10 02:48:14Z raasch
32	! openACC directive modified
33	!
34	! 1111 2013-03-08 23:54:10Z raasch
35	! openACC directives added for pres
36	! array diss allocated only if required
37	!
38	! 1092 2013-02-02 11:24:22Z raasch
39	! unused variables removed
40	!
41	! 1065 2012-11-22 17:42:36Z hoffmann
42	! allocation of diss (dissipation rate) in case of turbulence = .TRUE. added
43	!
44	! 1053 2012-11-13 17:11:03Z hoffmann
45	! allocation and initialisation of necessary data arrays for the two-moment
46	! cloud physics scheme the two new prognostic equations (nr, qr):
47	! +dr, lambda_r, mu_r, sed_, xr, s, sws, swst, , _p, t_m, _1, _2, _3,
48	! +tend_*, prr
49	!
50	! 1036 2012-10-22 13:43:42Z raasch
51	! code put under GPL (PALM 3.9)
52	!
53	! 1032 2012-10-21 13:03:21Z letzel
54	! save memory by not allocating pt_2 in case of neutral = .T.
55	!
56	! 1025 2012-10-07 16:04:41Z letzel
57	! bugfix: swap indices of mask for ghost boundaries
58	!
59	! 1015 2012-09-27 09:23:24Z raasch
60	! mask is set to zero for ghost boundaries
61	!
62	! 1010 2012-09-20 07:59:54Z raasch
63	! cpp switch __nopointer added for pointer free version
64	!
65	! 1003 2012-09-14 14:35:53Z raasch
66	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
67	!
68	! 1001 2012-09-13 14:08:46Z raasch
69	! all actions concerning leapfrog scheme removed
70	!
71	! 996 2012-09-07 10:41:47Z raasch
72	! little reformatting
73	!
74	! 978 2012-08-09 08:28:32Z fricke
75	! outflow damping layer removed
76	! roughness length for scalar quantites z0h added
77	! damping zone for the potential temperatur in case of non-cyclic lateral
78	! boundaries added
79	! initialization of ptdf_x, ptdf_y
80	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
81	!
82	! 849 2012-03-15 10:35:09Z raasch
83	! init_particles renamed lpm_init
84	!
85	! 825 2012-02-19 03:03:44Z raasch
86	! wang_collision_kernel renamed wang_kernel
87	!
88	! 790 2011-11-29 03:11:20Z raasch
89	! diss is also allocated in case that the Wang kernel is used
90	!
91	! 787 2011-11-28 12:49:05Z heinze $
92	! bugfix: call init_advec in every case - not only for inital runs
93	!
94	! 785 2011-11-28 09:47:19Z raasch
95	! initialization of rdf_sc
96	!
97	! 767 2011-10-14 06:39:12Z raasch
98	! adjustments concerning implementation of prescribed u,v-profiles
99	! bugfix: dirichlet_0 conditions for ug/vg moved to check_parameters
100	!
101	! 759 2011-09-15 13:58:31Z raasch
102	! Splitting of parallel I/O in blocks of PEs
103	! Bugfix: No zero assignments to volume_flow_initial and volume_flow_area in
104	! case of normal restart runs.
105	!
106	! 713 2011-03-30 14:21:21Z suehring
107	! weight_substep and weight_pres are given as fractions.
108	!
109	! 709 2011-03-30 09:31:40Z raasch
110	! formatting adjustments
111	!
112	! 707 2011-03-29 11:39:40Z raasch
113	! p_sub renamed p_loc and allocated depending on the chosen pressure solver,
114	! initial assignments of zero to array p for iterative solvers only,
115	! bc_lr/ns replaced by bc_lr/ns_dirrad/raddir
116	!
117	! 680 2011-02-04 23:16:06Z gryschka
118	! bugfix: volume_flow_control
119	!
120	! 673 2011-01-18 16:19:48Z suehring
121	! weight_substep (moved from advec_ws) and weight_pres added.
122	! Allocate p_sub when using Multigrid or SOR solver.
123	! Call of ws_init moved behind the if requests.
124	!
125	! 667 2010-12-23 12:06:00Z suehring/gryschka
126	! nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng in loops and
127	! allocation of arrays. Calls of exchange_horiz are modified.
128	! Call ws_init to initialize arrays needed for calculating statisticas and for
129	! optimization when ws-scheme is used.
130	! Initial volume flow is now calculated by using the variable hom_sum.
131	! Therefore the correction of initial volume flow for non-flat topography
132	! removed (removed u_nzb_p1_for_vfc and v_nzb_p1_for_vfc)
133	! Changed surface boundary conditions for u and v in case of ibc_uv_b == 0 from
134	! mirror to Dirichlet boundary conditions (u=v=0), so that k=nzb is
135	! representative for the height z0.
136	! Bugfix: type conversion of '1' to 64bit for the MAX function (ngp_3d_inner)
137	!
138	! 622 2010-12-10 08:08:13Z raasch
139	! optional barriers included in order to speed up collective operations
140	!
141	! 560 2010-09-09 10:06:09Z weinreis
142	! bugfix: correction of calculating ngp_3d for 64 bit
143	!
144	! 485 2010-02-05 10:57:51Z raasch
145	! calculation of ngp_3d + ngp_3d_inner changed because they have now 64 bit
146	!
147	! 407 2009-12-01 15:01:15Z maronga
148	! var_ts is replaced by dots_max
149	! Enabled passive scalar/humidity wall fluxes for non-flat topography
150	!
151	! 388 2009-09-23 09:40:33Z raasch
152	! Initialization of prho added.
153	! bugfix: correction of initial volume flow for non-flat topography
154	! bugfix: zero initialization of arrays within buildings for 'cyclic_fill'
155	! bugfix: avoid that ngp_2dh_s_inner becomes zero
156	! initializing_actions='read_data_for_recycling' renamed to 'cyclic_fill', now
157	! independent of turbulent_inflow
158	! Output of messages replaced by message handling routine.
159	! Set the starting level and the vertical smoothing factor used for
160	! the external pressure gradient
161	! +conserve_volume_flow_mode: 'default', 'initial_profiles', 'inflow_profile'
162	! and 'bulk_velocity'
163	! If the inversion height calculated by the prerun is zero,
164	! inflow_damping_height must be explicitly specified.
165	!
166	! 181 2008-07-30 07:07:47Z raasch
167	! bugfix: zero assignments to tendency arrays in case of restarts,
168	! further extensions and modifications in the initialisation of the plant
169	! canopy model,
170	! allocation of hom_sum moved to parin, initialization of spectrum_x\|y directly
171	! after allocating theses arrays,
172	! read data for recycling added as new initialization option,
173	! dummy allocation for diss
174	!
175	! 138 2007-11-28 10:03:58Z letzel
176	! New counter ngp_2dh_s_inner.
177	! Allow new case bc_uv_t = 'dirichlet_0' for channel flow.
178	! Corrected calculation of initial volume flow for 'set_1d-model_profiles' and
179	! 'set_constant_profiles' in case of buildings in the reference cross-sections.
180	!
181	! 108 2007-08-24 15:10:38Z letzel
182	! Flux initialization in case of coupled runs, +momentum fluxes at top boundary,
183	! +arrays for phase speed c_u, c_v, c_w, indices for u\|v\|w_m_l\|r changed
184	! +qswst_remote in case of atmosphere model with humidity coupled to ocean
185	! Rayleigh damping for ocean, optionally calculate km and kh from initial
186	! TKE e_init
187	!
188	! 97 2007-06-21 08:23:15Z raasch
189	! Initialization of salinity, call of init_ocean
190	!
191	! 87 2007-05-22 15:46:47Z raasch
192	! var_hom and var_sum renamed pr_palm
193	!
194	! 75 2007-03-22 09:54:05Z raasch
195	! Arrays for radiation boundary conditions are allocated (u_m_l, u_m_r, etc.),
196	! bugfix for cases with the outflow damping layer extending over more than one
197	! subdomain, moisture renamed humidity,
198	! new initializing action "by_user" calls user_init_3d_model,
199	! precipitation_amount/rate, ts_value are allocated, +module netcdf_control,
200	! initial velocities at nzb+1 are regarded for volume
201	! flow control in case they have been set zero before (to avoid small timesteps)
202	! -uvmean_outflow, uxrp, vynp eliminated
203	!
204	! 19 2007-02-23 04:53:48Z raasch
205	! +handling of top fluxes
206	!
207	! RCS Log replace by Id keyword, revision history cleaned up
208	!
209	! Revision 1.49 2006/08/22 15:59:07 raasch
210	! No optimization of this file on the ibmy (Yonsei Univ.)
211	!
212	! Revision 1.1 1998/03/09 16:22:22 raasch
213	! Initial revision
214	!
215	!
216	! Description:
217	! ------------
218	! Allocation of arrays and initialization of the 3D model via
219	! a) pre-run the 1D model
220	! or
221	! b) pre-set constant linear profiles
222	! or
223	! c) read values of a previous run
224	!------------------------------------------------------------------------------!
225
226	USE advec_ws
227	USE arrays_3d
228	USE averaging
229	USE cloud_parameters
230	USE constants
231	USE control_parameters
232	USE cpulog
233	USE grid_variables
234	USE indices
235	USE interfaces
236	USE model_1d
237	USE netcdf_control
238	USE particle_attributes
239	USE pegrid
240	USE profil_parameter
241	USE random_function_mod
242	USE statistics
243	USE transpose_indices
244
245	IMPLICIT NONE
246
247	INTEGER :: i, ind_array(1), j, k, sr
248
249	INTEGER, DIMENSION(:), ALLOCATABLE :: ngp_2dh_l
250
251	INTEGER, DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l, &
252	ngp_2dh_s_inner_l
253
254	REAL, DIMENSION(1:2) :: volume_flow_area_l, volume_flow_initial_l
255
256	REAL, DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l, ngp_3d_inner_tmp
257
258
259	!
260	!-- Allocate arrays
261	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
262	ngp_3d(0:statistic_regions), &
263	ngp_3d_inner(0:statistic_regions), &
264	ngp_3d_inner_l(0:statistic_regions), &
265	ngp_3d_inner_tmp(0:statistic_regions), &
266	sums_divnew_l(0:statistic_regions), &
267	sums_divold_l(0:statistic_regions) )
268	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
269	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
270	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
271	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
272	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
273	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
274	sums(nzb:nzt+1,pr_palm+max_pr_user), &
275	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
276	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
277	sums_up_fraction_l(10,3,0:statistic_regions), &
278	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
279	ts_value(dots_max,0:statistic_regions) )
280	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
281
282	ALLOCATE( rif(nysg:nyng,nxlg:nxrg), shf(nysg:nyng,nxlg:nxrg), &
283	ts(nysg:nyng,nxlg:nxrg), tswst(nysg:nyng,nxlg:nxrg), &
284	us(nysg:nyng,nxlg:nxrg), usws(nysg:nyng,nxlg:nxrg), &
285	uswst(nysg:nyng,nxlg:nxrg), vsws(nysg:nyng,nxlg:nxrg), &
286	vswst(nysg:nyng,nxlg:nxrg), z0(nysg:nyng,nxlg:nxrg), &
287	z0h(nysg:nyng,nxlg:nxrg) )
288
289	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
290	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
291	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
292	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
293	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
294
295	#if defined( __nopointer )
296	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
297	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
298	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
299	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
300	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
301	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
302	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
303	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
304	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
305	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
306	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
307	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
308	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
309	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
310	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
311	#else
312	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
313	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
314	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
315	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
316	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
317	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
318	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
319	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
320	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
321	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
322	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
323	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
324	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
325	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
326	IF ( .NOT. neutral ) THEN
327	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
328	ENDIF
329	#endif
330
331	!
332	!-- Following array is required for perturbation pressure within the iterative
333	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
334	!-- the weighted average of the substeps and cannot be used in the Poisson
335	!-- solver.
336	IF ( psolver == 'sor' ) THEN
337	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
338	ELSEIF ( psolver == 'multigrid' ) THEN
339	!
340	!-- For performance reasons, multigrid is using one ghost layer only
341	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
342	ENDIF
343
344	!
345	!-- Array for storing constant coeffficients of the tridiagonal solver
346	IF ( psolver == 'poisfft' ) THEN
347	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
348	ENDIF
349
350	IF ( humidity .OR. passive_scalar ) THEN
351	!
352	!-- 2D-humidity/scalar arrays
353	ALLOCATE ( qs(nysg:nyng,nxlg:nxrg), &
354	qsws(nysg:nyng,nxlg:nxrg), &
355	qswst(nysg:nyng,nxlg:nxrg) )
356
357	!
358	!-- 3D-humidity/scalar arrays
359	#if defined( __nopointer )
360	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
361	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
362	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
363	#else
364	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
365	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
366	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
367	#endif
368
369	!
370	!-- 3D-arrays needed for humidity only
371	IF ( humidity ) THEN
372	#if defined( __nopointer )
373	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
374	#else
375	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
376	#endif
377
378	IF ( cloud_physics ) THEN
379
380	!
381	!-- Liquid water content
382	#if defined( __nopointer )
383	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
384	#else
385	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
386	#endif
387	!
388	!-- Precipitation amount and rate (only needed if output is switched)
389	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
390	precipitation_rate(nysg:nyng,nxlg:nxrg) )
391
392	IF ( icloud_scheme == 0 ) THEN
393	!
394	!-- 1D-rain sedimentation fluxes and rain drop size distribution
395	!-- properties
396	ALLOCATE ( dr(nzb:nzt+1), lambda_r(nzb:nzt+1), &
397	mu_r(nzb:nzt+1), sed_q(nzb:nzt+1), &
398	sed_qr(nzb:nzt+1), sed_nr(nzb:nzt+1),&
399	xr(nzb:nzt+1) )
400	!
401	!-- 2D-rain water content and rain drop concentration arrays
402	ALLOCATE ( qrs(nysg:nyng,nxlg:nxrg), &
403	qrsws(nysg:nyng,nxlg:nxrg), &
404	qrswst(nysg:nyng,nxlg:nxrg), &
405	nrs(nysg:nyng,nxlg:nxrg), &
406	nrsws(nysg:nyng,nxlg:nxrg), &
407	nrswst(nysg:nyng,nxlg:nxrg) )
408	!
409	!-- 3D-rain water content, rain drop concentration arrays
410	#if defined( __nopointer )
411	ALLOCATE( nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
412	nr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
413	qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
414	qr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
415	tnr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
416	tqr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
417	#else
418	ALLOCATE( nr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
419	nr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
420	nr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
421	qr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
422	qr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
423	qr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
424	#endif
425	!
426	!-- 3D-tendency arrays
427	ALLOCATE( tend_nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
428	tend_pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
429	tend_q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
430	tend_qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
431	!
432	!-- 3d-precipitation rate
433	IF ( precipitation ) THEN
434	ALLOCATE( prr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
435	ENDIF
436
437	ENDIF
438	ENDIF
439
440	IF ( cloud_droplets ) THEN
441	!
442	!-- Liquid water content, change in liquid water content
443	#if defined( __nopointer )
444	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
445	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
446	#else
447	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
448	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
449	#endif
450	!
451	!-- Real volume of particles (with weighting), volume of particles
452	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
453	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
454	ENDIF
455
456	ENDIF
457
458	ENDIF
459
460	IF ( ocean ) THEN
461	ALLOCATE( saswsb(nysg:nyng,nxlg:nxrg), &
462	saswst(nysg:nyng,nxlg:nxrg) )
463	#if defined( __nopointer )
464	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
465	rho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
466	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
467	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
468	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
469	#else
470	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
471	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
472	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
473	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
474	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
475	prho => prho_1
476	rho => rho_1 ! routines calc_mean_profile and diffusion_e require
477	! density to be apointer
478	#endif
479	IF ( humidity_remote ) THEN
480	ALLOCATE( qswst_remote(nysg:nyng,nxlg:nxrg))
481	qswst_remote = 0.0
482	ENDIF
483	ENDIF
484
485	!
486	!-- 3D-array for storing the dissipation, needed for calculating the sgs
487	!-- particle velocities
488	IF ( use_sgs_for_particles .OR. wang_kernel .OR. turbulence ) THEN
489	ALLOCATE ( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
490	ENDIF
491
492	IF ( dt_dosp /= 9999999.9 ) THEN
493	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
494	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
495	spectrum_x = 0.0
496	spectrum_y = 0.0
497	ENDIF
498
499	!
500	!-- 3D-arrays for the leaf area density and the canopy drag coefficient
501	IF ( plant_canopy ) THEN
502	ALLOCATE ( lad_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
503	lad_u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
504	lad_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
505	lad_w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
506	cdc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
507
508	IF ( passive_scalar ) THEN
509	ALLOCATE ( sls(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
510	sec(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
511	ENDIF
512
513	IF ( cthf /= 0.0 ) THEN
514	ALLOCATE ( lai(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
515	canopy_heat_flux(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
516	ENDIF
517
518	ENDIF
519
520	!
521	!-- 4D-array for storing the Rif-values at vertical walls
522	IF ( topography /= 'flat' ) THEN
523	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
524	rif_wall = 0.0
525	ENDIF
526
527	!
528	!-- Arrays to store velocity data from t-dt and the phase speeds which
529	!-- are needed for radiation boundary conditions
530	IF ( outflow_l ) THEN
531	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
532	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
533	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
534	ENDIF
535	IF ( outflow_r ) THEN
536	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
537	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
538	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
539	ENDIF
540	IF ( outflow_l .OR. outflow_r ) THEN
541	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
542	c_w(nzb:nzt+1,nysg:nyng) )
543	ENDIF
544	IF ( outflow_s ) THEN
545	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
546	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
547	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
548	ENDIF
549	IF ( outflow_n ) THEN
550	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
551	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
552	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
553	ENDIF
554	IF ( outflow_s .OR. outflow_n ) THEN
555	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
556	c_w(nzb:nzt+1,nxlg:nxrg) )
557	ENDIF
558	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
559	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
560	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
561	ENDIF
562
563
564	#if ! defined( __nopointer )
565	!
566	!-- Initial assignment of the pointers
567	e => e_1; e_p => e_2; te_m => e_3
568	IF ( .NOT. neutral ) THEN
569	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
570	ELSE
571	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
572	ENDIF
573	u => u_1; u_p => u_2; tu_m => u_3
574	v => v_1; v_p => v_2; tv_m => v_3
575	w => w_1; w_p => w_2; tw_m => w_3
576
577	IF ( humidity .OR. passive_scalar ) THEN
578	q => q_1; q_p => q_2; tq_m => q_3
579	IF ( humidity ) THEN
580	vpt => vpt_1
581	IF ( cloud_physics ) THEN
582	ql => ql_1
583	IF ( icloud_scheme == 0 ) THEN
584	qr => qr_1; qr_p => qr_2; tqr_m => qr_3
585	nr => nr_1; nr_p => nr_2; tnr_m => nr_3
586	ENDIF
587	ENDIF
588	ENDIF
589	IF ( cloud_droplets ) THEN
590	ql => ql_1
591	ql_c => ql_2
592	ENDIF
593	ENDIF
594
595	IF ( ocean ) THEN
596	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
597	ENDIF
598	#endif
599
600	!
601	!-- Allocate arrays containing the RK coefficient for calculation of
602	!-- perturbation pressure and turbulent fluxes. At this point values are
603	!-- set for pressure calculation during initialization (where no timestep
604	!-- is done). Further below the values needed within the timestep scheme
605	!-- will be set.
606	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
607	weight_pres(1:intermediate_timestep_count_max) )
608	weight_substep = 1.0
609	weight_pres = 1.0
610	intermediate_timestep_count = 1 ! needed when simulated_time = 0.0
611
612	!
613	!-- Initialize model variables
614	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
615	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
616	!
617	!-- First model run of a possible job queue.
618	!-- Initial profiles of the variables must be computes.
619	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
620	!
621	!-- Use solutions of the 1D model as initial profiles,
622	!-- start 1D model
623	CALL init_1d_model
624	!
625	!-- Transfer initial profiles to the arrays of the 3D model
626	DO i = nxlg, nxrg
627	DO j = nysg, nyng
628	e(:,j,i) = e1d
629	kh(:,j,i) = kh1d
630	km(:,j,i) = km1d
631	pt(:,j,i) = pt_init
632	u(:,j,i) = u1d
633	v(:,j,i) = v1d
634	ENDDO
635	ENDDO
636
637	IF ( humidity .OR. passive_scalar ) THEN
638	DO i = nxlg, nxrg
639	DO j = nysg, nyng
640	q(:,j,i) = q_init
641	ENDDO
642	ENDDO
643	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
644	DO i = nxlg, nxrg
645	DO j = nysg, nyng
646	qr(:,j,i) = qr_init
647	nr(:,j,i) = nr_init
648	ENDDO
649	ENDDO
650	ENDIF
651	ENDIF
652
653	IF ( .NOT. constant_diffusion ) THEN
654	DO i = nxlg, nxrg
655	DO j = nysg, nyng
656	e(:,j,i) = e1d
657	ENDDO
658	ENDDO
659	!
660	!-- Store initial profiles for output purposes etc.
661	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
662
663	IF ( prandtl_layer ) THEN
664	rif = rif1d(nzb+1)
665	ts = 0.0 ! could actually be computed more accurately in the
666	! 1D model. Update when opportunity arises.
667	us = us1d
668	usws = usws1d
669	vsws = vsws1d
670	ELSE
671	ts = 0.0 ! must be set, because used in
672	rif = 0.0 ! flowste
673	us = 0.0
674	usws = 0.0
675	vsws = 0.0
676	ENDIF
677
678	ELSE
679	e = 0.0 ! must be set, because used in
680	rif = 0.0 ! flowste
681	ts = 0.0
682	us = 0.0
683	usws = 0.0
684	vsws = 0.0
685	ENDIF
686	uswst = top_momentumflux_u
687	vswst = top_momentumflux_v
688
689	!
690	!-- In every case qs = 0.0 (see also pt)
691	!-- This could actually be computed more accurately in the 1D model.
692	!-- Update when opportunity arises!
693	IF ( humidity .OR. passive_scalar ) THEN
694	qs = 0.0
695	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
696	qrs = 0.0
697	nrs = 0.0
698	ENDIF
699	ENDIF
700
701	!
702	!-- inside buildings set velocities back to zero
703	IF ( topography /= 'flat' ) THEN
704	DO i = nxl-1, nxr+1
705	DO j = nys-1, nyn+1
706	u(nzb:nzb_u_inner(j,i),j,i) = 0.0
707	v(nzb:nzb_v_inner(j,i),j,i) = 0.0
708	ENDDO
709	ENDDO
710
711	!
712	!-- WARNING: The extra boundary conditions set after running the
713	!-- ------- 1D model impose an error on the divergence one layer
714	!-- below the topography; need to correct later
715	!-- ATTENTION: Provisional correction for Piacsek & Williams
716	!-- --------- advection scheme: keep u and v zero one layer below
717	!-- the topography.
718	IF ( ibc_uv_b == 1 ) THEN
719	!
720	!-- Neumann condition
721	DO i = nxl-1, nxr+1
722	DO j = nys-1, nyn+1
723	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
724	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
725	ENDDO
726	ENDDO
727
728	ENDIF
729
730	ENDIF
731
732	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
733	THEN
734	!
735	!-- Use constructed initial profiles (velocity constant with height,
736	!-- temperature profile with constant gradient)
737	DO i = nxlg, nxrg
738	DO j = nysg, nyng
739	pt(:,j,i) = pt_init
740	u(:,j,i) = u_init
741	v(:,j,i) = v_init
742	ENDDO
743	ENDDO
744
745	!
746	!-- Set initial horizontal velocities at the lowest computational grid
747	!-- levels to zero in order to avoid too small time steps caused by the
748	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
749	!-- in the limiting formula!). The original values are stored to be later
750	!-- used for volume flow control.
751	DO i = nxlg, nxrg
752	DO j = nysg, nyng
753	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0
754	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0
755	ENDDO
756	ENDDO
757
758	IF ( humidity .OR. passive_scalar ) THEN
759	DO i = nxlg, nxrg
760	DO j = nysg, nyng
761	q(:,j,i) = q_init
762	ENDDO
763	ENDDO
764	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
765	DO i = nxlg, nxrg
766	DO j = nysg, nyng
767	qr(:,j,i) = qr_init
768	nr(:,j,i) = nr_init
769	ENDDO
770	ENDDO
771	ENDIF
772	ENDIF
773
774	IF ( ocean ) THEN
775	DO i = nxlg, nxrg
776	DO j = nysg, nyng
777	sa(:,j,i) = sa_init
778	ENDDO
779	ENDDO
780	ENDIF
781
782	IF ( constant_diffusion ) THEN
783	km = km_constant
784	kh = km / prandtl_number
785	e = 0.0
786	ELSEIF ( e_init > 0.0 ) THEN
787	DO k = nzb+1, nzt
788	km(k,:,:) = 0.1 * l_grid(k) * SQRT( e_init )
789	ENDDO
790	km(nzb,:,:) = km(nzb+1,:,:)
791	km(nzt+1,:,:) = km(nzt,:,:)
792	kh = km / prandtl_number
793	e = e_init
794	ELSE
795	IF ( .NOT. ocean ) THEN
796	kh = 0.01 ! there must exist an initial diffusion, because
797	km = 0.01 ! otherwise no TKE would be produced by the
798	! production terms, as long as not yet
799	! e = (u/cm)*2 at k=nzb+1
800	ELSE
801	kh = 0.00001
802	km = 0.00001
803	ENDIF
804	e = 0.0
805	ENDIF
806	rif = 0.0
807	ts = 0.0
808	us = 0.0
809	usws = 0.0
810	uswst = top_momentumflux_u
811	vsws = 0.0
812	vswst = top_momentumflux_v
813	IF ( humidity .OR. passive_scalar ) qs = 0.0
814
815	!
816	!-- Compute initial temperature field and other constants used in case
817	!-- of a sloping surface
818	IF ( sloping_surface ) CALL init_slope
819
820	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
821	THEN
822	!
823	!-- Initialization will completely be done by the user
824	CALL user_init_3d_model
825
826	ENDIF
827	!
828	!-- Bottom boundary
829	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
830	u(nzb,:,:) = 0.0
831	v(nzb,:,:) = 0.0
832	ENDIF
833
834	!
835	!-- Apply channel flow boundary condition
836	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
837	u(nzt+1,:,:) = 0.0
838	v(nzt+1,:,:) = 0.0
839	ENDIF
840
841	!
842	!-- Calculate virtual potential temperature
843	IF ( humidity ) vpt = pt * ( 1.0 + 0.61 * q )
844
845	!
846	!-- Store initial profiles for output purposes etc.
847	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
848	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
849	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
850	hom(nzb,1,5,:) = 0.0
851	hom(nzb,1,6,:) = 0.0
852	ENDIF
853	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
854	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
855	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
856
857	IF ( ocean ) THEN
858	!
859	!-- Store initial salinity profile
860	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
861	ENDIF
862
863	IF ( humidity ) THEN
864	!
865	!-- Store initial profile of total water content, virtual potential
866	!-- temperature
867	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
868	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
869	IF ( cloud_physics .OR. cloud_droplets ) THEN
870	!
871	!-- Store initial profile of specific humidity and potential
872	!-- temperature
873	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
874	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
875	ENDIF
876	ENDIF
877
878	IF ( passive_scalar ) THEN
879	!
880	!-- Store initial scalar profile
881	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
882	ENDIF
883
884	!
885	!-- Initialize fluxes at bottom surface
886	IF ( use_surface_fluxes ) THEN
887
888	IF ( constant_heatflux ) THEN
889	!
890	!-- Heat flux is prescribed
891	IF ( random_heatflux ) THEN
892	CALL disturb_heatflux
893	ELSE
894	shf = surface_heatflux
895	!
896	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
897	IF ( TRIM( topography ) /= 'flat' ) THEN
898	DO i = nxlg, nxrg
899	DO j = nysg, nyng
900	IF ( nzb_s_inner(j,i) /= 0 ) THEN
901	shf(j,i) = wall_heatflux(0)
902	ENDIF
903	ENDDO
904	ENDDO
905	ENDIF
906	ENDIF
907	ENDIF
908
909	!
910	!-- Determine the near-surface water flux
911	IF ( humidity .OR. passive_scalar ) THEN
912	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
913	IF ( constant_waterflux_qr ) THEN
914	qrsws = surface_waterflux_qr
915	ENDIF
916	IF (constant_waterflux_nr ) THEN
917	nrsws = surface_waterflux_nr
918	ENDIF
919	ENDIF
920	IF ( constant_waterflux ) THEN
921	qsws = surface_waterflux
922	!
923	!-- Over topography surface_waterflux is replaced by
924	!-- wall_humidityflux(0)
925	IF ( TRIM( topography ) /= 'flat' ) THEN
926	wall_qflux = wall_humidityflux
927	DO i = nxlg, nxrg
928	DO j = nysg, nyng
929	IF ( nzb_s_inner(j,i) /= 0 ) THEN
930	qsws(j,i) = wall_qflux(0)
931	ENDIF
932	ENDDO
933	ENDDO
934	ENDIF
935	ENDIF
936	ENDIF
937
938	ENDIF
939
940	!
941	!-- Initialize fluxes at top surface
942	!-- Currently, only the heatflux and salinity flux can be prescribed.
943	!-- The latent flux is zero in this case!
944	IF ( use_top_fluxes ) THEN
945
946	IF ( constant_top_heatflux ) THEN
947	!
948	!-- Heat flux is prescribed
949	tswst = top_heatflux
950
951	IF ( humidity .OR. passive_scalar ) THEN
952	qswst = 0.0
953	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
954	nrswst = 0.0
955	qrswst = 0.0
956	ENDIF
957	ENDIF
958
959	IF ( ocean ) THEN
960	saswsb = bottom_salinityflux
961	saswst = top_salinityflux
962	ENDIF
963	ENDIF
964
965	!
966	!-- Initialization in case of a coupled model run
967	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
968	tswst = 0.0
969	ENDIF
970
971	ENDIF
972
973	!
974	!-- Initialize Prandtl layer quantities
975	IF ( prandtl_layer ) THEN
976
977	z0 = roughness_length
978	z0h = z0h_factor * z0
979
980	IF ( .NOT. constant_heatflux ) THEN
981	!
982	!-- Surface temperature is prescribed. Here the heat flux cannot be
983	!-- simply estimated, because therefore rif, u* and theta* would have
984	!-- to be computed by iteration. This is why the heat flux is assumed
985	!-- to be zero before the first time step. It approaches its correct
986	!-- value in the course of the first few time steps.
987	shf = 0.0
988	ENDIF
989
990	IF ( humidity .OR. passive_scalar ) THEN
991	IF ( .NOT. constant_waterflux ) qsws = 0.0
992	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
993	IF ( .NOT. constant_waterflux_qr ) THEN
994	qrsws = 0.0
995	ENDIF
996	IF ( .NOT. constant_waterflux_nr ) THEN
997	nrsws = 0.0
998	ENDIF
999	ENDIF
1000	ENDIF
1001
1002	ENDIF
1003
1004
1005	!
1006	!-- For the moment, vertical velocity is zero
1007	w = 0.0
1008
1009	!
1010	!-- Initialize array sums (must be defined in first call of pres)
1011	sums = 0.0
1012
1013	!
1014	!-- In case of iterative solvers, p must get an initial value
1015	IF ( psolver == 'multigrid' .OR. psolver == 'sor' ) p = 0.0
1016
1017	!
1018	!-- Treating cloud physics, liquid water content and precipitation amount
1019	!-- are zero at beginning of the simulation
1020	IF ( cloud_physics ) THEN
1021	ql = 0.0
1022	IF ( precipitation ) precipitation_amount = 0.0
1023	ENDIF
1024	!
1025	!-- Impose vortex with vertical axis on the initial velocity profile
1026	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
1027	CALL init_rankine
1028	ENDIF
1029
1030	!
1031	!-- Impose temperature anomaly (advection test only)
1032	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
1033	CALL init_pt_anomaly
1034	ENDIF
1035
1036	!
1037	!-- If required, change the surface temperature at the start of the 3D run
1038	IF ( pt_surface_initial_change /= 0.0 ) THEN
1039	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
1040	ENDIF
1041
1042	!
1043	!-- If required, change the surface humidity/scalar at the start of the 3D
1044	!-- run
1045	IF ( ( humidity .OR. passive_scalar ) .AND. &
1046	q_surface_initial_change /= 0.0 ) THEN
1047	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
1048	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
1049	IF ( qr_surface_initial_change /= 0.0 ) THEN
1050	qr(nzb,:,:) = qr(nzb,:,:) + qr_surface_initial_change
1051	ELSEIF ( nr_surface_initial_change /= 0.0 ) THEN
1052	nr(nzb,:,:) = nr(nzb,:,:) + nr_surface_initial_change
1053	ENDIF
1054	ENDIF
1055	ENDIF
1056
1057	!
1058	!-- Initialize the random number generator (from numerical recipes)
1059	CALL random_function_ini
1060
1061	!
1062	!-- Initialize old and new time levels.
1063	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
1064	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1065
1066	IF ( humidity .OR. passive_scalar ) THEN
1067	tq_m = 0.0
1068	q_p = q
1069	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
1070	tqr_m = 0.0
1071	qr_p = qr
1072	tnr_m = 0.0
1073	nr_p = nr
1074	ENDIF
1075	ENDIF
1076
1077	IF ( ocean ) THEN
1078	tsa_m = 0.0
1079	sa_p = sa
1080	ENDIF
1081
1082
1083	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
1084	TRIM( initializing_actions ) == 'cyclic_fill' ) &
1085	THEN
1086	!
1087	!-- When reading data for cyclic fill of 3D prerun data files, read
1088	!-- some of the global variables from the restart file which are required
1089	!-- for initializing the inflow
1090	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1091
1092	DO i = 0, io_blocks-1
1093	IF ( i == io_group ) THEN
1094	CALL read_parts_of_var_list
1095	CALL close_file( 13 )
1096	ENDIF
1097	#if defined( __parallel )
1098	CALL MPI_BARRIER( comm2d, ierr )
1099	#endif
1100	ENDDO
1101
1102	ENDIF
1103
1104	!
1105	!-- Read binary data from restart file
1106	DO i = 0, io_blocks-1
1107	IF ( i == io_group ) THEN
1108	CALL read_3d_binary
1109	ENDIF
1110	#if defined( __parallel )
1111	CALL MPI_BARRIER( comm2d, ierr )
1112	#endif
1113	ENDDO
1114
1115	!
1116	!-- Initialization of the turbulence recycling method
1117	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1118	turbulent_inflow ) THEN
1119	!
1120	!-- First store the profiles to be used at the inflow.
1121	!-- These profiles are the (temporally) and horizontally averaged vertical
1122	!-- profiles from the prerun. Alternatively, prescribed profiles
1123	!-- for u,v-components can be used.
1124	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,5) )
1125
1126	IF ( use_prescribed_profile_data ) THEN
1127	mean_inflow_profiles(:,1) = u_init ! u
1128	mean_inflow_profiles(:,2) = v_init ! v
1129	ELSE
1130	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
1131	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
1132	ENDIF
1133	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
1134	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
1135
1136	!
1137	!-- If necessary, adjust the horizontal flow field to the prescribed
1138	!-- profiles
1139	IF ( use_prescribed_profile_data ) THEN
1140	DO i = nxlg, nxrg
1141	DO j = nysg, nyng
1142	DO k = nzb, nzt+1
1143	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
1144	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
1145	ENDDO
1146	ENDDO
1147	ENDDO
1148	ENDIF
1149
1150	!
1151	!-- Use these mean profiles at the inflow (provided that Dirichlet
1152	!-- conditions are used)
1153	IF ( inflow_l ) THEN
1154	DO j = nysg, nyng
1155	DO k = nzb, nzt+1
1156	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
1157	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
1158	w(k,j,nxlg:-1) = 0.0
1159	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
1160	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
1161	ENDDO
1162	ENDDO
1163	ENDIF
1164
1165	!
1166	!-- Calculate the damping factors to be used at the inflow. For a
1167	!-- turbulent inflow the turbulent fluctuations have to be limited
1168	!-- vertically because otherwise the turbulent inflow layer will grow
1169	!-- in time.
1170	IF ( inflow_damping_height == 9999999.9 ) THEN
1171	!
1172	!-- Default: use the inversion height calculated by the prerun; if
1173	!-- this is zero, inflow_damping_height must be explicitly
1174	!-- specified.
1175	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0 ) THEN
1176	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
1177	ELSE
1178	WRITE( message_string, * ) 'inflow_damping_height must be ',&
1179	'explicitly specified because&the inversion height ', &
1180	'calculated by the prerun is zero.'
1181	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
1182	ENDIF
1183
1184	ENDIF
1185
1186	IF ( inflow_damping_width == 9999999.9 ) THEN
1187	!
1188	!-- Default for the transition range: one tenth of the undamped
1189	!-- layer
1190	inflow_damping_width = 0.1 * inflow_damping_height
1191
1192	ENDIF
1193
1194	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
1195
1196	DO k = nzb, nzt+1
1197
1198	IF ( zu(k) <= inflow_damping_height ) THEN
1199	inflow_damping_factor(k) = 1.0
1200	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
1201	inflow_damping_factor(k) = 1.0 - &
1202	( zu(k) - inflow_damping_height ) / &
1203	inflow_damping_width
1204	ELSE
1205	inflow_damping_factor(k) = 0.0
1206	ENDIF
1207
1208	ENDDO
1209
1210	ENDIF
1211
1212	!
1213	!-- Inside buildings set velocities and TKE back to zero
1214	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1215	topography /= 'flat' ) THEN
1216	!
1217	!-- Inside buildings set velocities and TKE back to zero.
1218	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
1219	!-- maybe revise later.
1220	DO i = nxlg, nxrg
1221	DO j = nysg, nyng
1222	u (nzb:nzb_u_inner(j,i),j,i) = 0.0
1223	v (nzb:nzb_v_inner(j,i),j,i) = 0.0
1224	w (nzb:nzb_w_inner(j,i),j,i) = 0.0
1225	e (nzb:nzb_w_inner(j,i),j,i) = 0.0
1226	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0
1227	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0
1228	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1229	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1230	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1231	ENDDO
1232	ENDDO
1233
1234	ENDIF
1235
1236	!
1237	!-- Calculate initial temperature field and other constants used in case
1238	!-- of a sloping surface
1239	IF ( sloping_surface ) CALL init_slope
1240
1241	!
1242	!-- Initialize new time levels (only done in order to set boundary values
1243	!-- including ghost points)
1244	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1245	IF ( humidity .OR. passive_scalar ) THEN
1246	q_p = q
1247	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
1248	qr_p = qr
1249	nr_p = nr
1250	ENDIF
1251	ENDIF
1252	IF ( ocean ) sa_p = sa
1253
1254	!
1255	!-- Allthough tendency arrays are set in prognostic_equations, they have
1256	!-- have to be predefined here because they are used (but multiplied with 0)
1257	!-- there before they are set.
1258	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
1259	IF ( humidity .OR. passive_scalar ) THEN
1260	tq_m = 0.0
1261	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
1262	tqr_m = 0.0
1263	tnr_m = 0.0
1264	ENDIF
1265	ENDIF
1266	IF ( ocean ) tsa_m = 0.0
1267
1268	ELSE
1269	!
1270	!-- Actually this part of the programm should not be reached
1271	message_string = 'unknown initializing problem'
1272	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
1273	ENDIF
1274
1275
1276	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1277	!
1278	!-- Initialize old timelevels needed for radiation boundary conditions
1279	IF ( outflow_l ) THEN
1280	u_m_l(:,:,:) = u(:,:,1:2)
1281	v_m_l(:,:,:) = v(:,:,0:1)
1282	w_m_l(:,:,:) = w(:,:,0:1)
1283	ENDIF
1284	IF ( outflow_r ) THEN
1285	u_m_r(:,:,:) = u(:,:,nx-1:nx)
1286	v_m_r(:,:,:) = v(:,:,nx-1:nx)
1287	w_m_r(:,:,:) = w(:,:,nx-1:nx)
1288	ENDIF
1289	IF ( outflow_s ) THEN
1290	u_m_s(:,:,:) = u(:,0:1,:)
1291	v_m_s(:,:,:) = v(:,1:2,:)
1292	w_m_s(:,:,:) = w(:,0:1,:)
1293	ENDIF
1294	IF ( outflow_n ) THEN
1295	u_m_n(:,:,:) = u(:,ny-1:ny,:)
1296	v_m_n(:,:,:) = v(:,ny-1:ny,:)
1297	w_m_n(:,:,:) = w(:,ny-1:ny,:)
1298	ENDIF
1299
1300	ENDIF
1301
1302	!
1303	!-- Calculate the initial volume flow at the right and north boundary
1304	IF ( conserve_volume_flow ) THEN
1305
1306	IF ( use_prescribed_profile_data ) THEN
1307
1308	volume_flow_initial_l = 0.0
1309	volume_flow_area_l = 0.0
1310
1311	IF ( nxr == nx ) THEN
1312	DO j = nys, nyn
1313	DO k = nzb_2d(j,nx)+1, nzt
1314	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1315	u_init(k) * dzw(k)
1316	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1317	ENDDO
1318	ENDDO
1319	ENDIF
1320
1321	IF ( nyn == ny ) THEN
1322	DO i = nxl, nxr
1323	DO k = nzb_2d(ny,i)+1, nzt
1324	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1325	v_init(k) * dzw(k)
1326	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1327	ENDDO
1328	ENDDO
1329	ENDIF
1330
1331	#if defined( __parallel )
1332	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1333	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1334	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1335	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1336
1337	#else
1338	volume_flow_initial = volume_flow_initial_l
1339	volume_flow_area = volume_flow_area_l
1340	#endif
1341
1342	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1343
1344	volume_flow_initial_l = 0.0
1345	volume_flow_area_l = 0.0
1346
1347	IF ( nxr == nx ) THEN
1348	DO j = nys, nyn
1349	DO k = nzb_2d(j,nx)+1, nzt
1350	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1351	hom_sum(k,1,0) * dzw(k)
1352	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1353	ENDDO
1354	ENDDO
1355	ENDIF
1356
1357	IF ( nyn == ny ) THEN
1358	DO i = nxl, nxr
1359	DO k = nzb_2d(ny,i)+1, nzt
1360	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1361	hom_sum(k,2,0) * dzw(k)
1362	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1363	ENDDO
1364	ENDDO
1365	ENDIF
1366
1367	#if defined( __parallel )
1368	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1369	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1370	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1371	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1372
1373	#else
1374	volume_flow_initial = volume_flow_initial_l
1375	volume_flow_area = volume_flow_area_l
1376	#endif
1377
1378	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1379
1380	volume_flow_initial_l = 0.0
1381	volume_flow_area_l = 0.0
1382
1383	IF ( nxr == nx ) THEN
1384	DO j = nys, nyn
1385	DO k = nzb_2d(j,nx)+1, nzt
1386	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1387	u(k,j,nx) * dzw(k)
1388	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1389	ENDDO
1390	ENDDO
1391	ENDIF
1392
1393	IF ( nyn == ny ) THEN
1394	DO i = nxl, nxr
1395	DO k = nzb_2d(ny,i)+1, nzt
1396	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1397	v(k,ny,i) * dzw(k)
1398	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1399	ENDDO
1400	ENDDO
1401	ENDIF
1402
1403	#if defined( __parallel )
1404	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1405	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1406	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1407	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1408
1409	#else
1410	volume_flow_initial = volume_flow_initial_l
1411	volume_flow_area = volume_flow_area_l
1412	#endif
1413
1414	ENDIF
1415
1416	!
1417	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
1418	!-- from u\|v_bulk instead
1419	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
1420	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
1421	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
1422	ENDIF
1423
1424	ENDIF
1425
1426	!
1427	!-- Initialize quantities for special advections schemes
1428	CALL init_advec
1429
1430	!
1431	!-- Impose random perturbation on the horizontal velocity field and then
1432	!-- remove the divergences from the velocity field at the initial stage
1433	IF ( create_disturbances .AND. &
1434	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1435	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1436
1437	CALL disturb_field( nzb_u_inner, tend, u )
1438	CALL disturb_field( nzb_v_inner, tend, v )
1439	n_sor = nsor_ini
1440	!$acc data copy( d, ddzu, ddzw, nzb_s_inner, nzb_u_inner, nzb_v_inner, nzb_w_inner, p, tric, u, v, w, weight_pres, weight_substep, tend )
1441	CALL pres
1442	!$acc end data
1443	n_sor = nsor
1444	ENDIF
1445
1446	!
1447	!-- Initialization of the leaf area density
1448	IF ( plant_canopy ) THEN
1449
1450	SELECT CASE ( TRIM( canopy_mode ) )
1451
1452	CASE( 'block' )
1453
1454	DO i = nxlg, nxrg
1455	DO j = nysg, nyng
1456	lad_s(:,j,i) = lad(:)
1457	cdc(:,j,i) = drag_coefficient
1458	IF ( passive_scalar ) THEN
1459	sls(:,j,i) = leaf_surface_concentration
1460	sec(:,j,i) = scalar_exchange_coefficient
1461	ENDIF
1462	ENDDO
1463	ENDDO
1464
1465	CASE DEFAULT
1466
1467	!
1468	!-- The DEFAULT case is reached either if the parameter
1469	!-- canopy mode contains a wrong character string or if the
1470	!-- user has coded a special case in the user interface.
1471	!-- There, the subroutine user_init_plant_canopy checks
1472	!-- which of these two conditions applies.
1473	CALL user_init_plant_canopy
1474
1475	END SELECT
1476
1477	CALL exchange_horiz( lad_s, nbgp )
1478	CALL exchange_horiz( cdc, nbgp )
1479
1480	IF ( passive_scalar ) THEN
1481	CALL exchange_horiz( sls, nbgp )
1482	CALL exchange_horiz( sec, nbgp )
1483	ENDIF
1484
1485	!
1486	!-- Sharp boundaries of the plant canopy in horizontal directions
1487	!-- In vertical direction the interpolation is retained, as the leaf
1488	!-- area density is initialised by prescribing a vertical profile
1489	!-- consisting of piecewise linear segments. The upper boundary
1490	!-- of the plant canopy is now defined by lad_w(pch_index,:,:) = 0.0.
1491
1492	DO i = nxl, nxr
1493	DO j = nys, nyn
1494	DO k = nzb, nzt+1
1495	IF ( lad_s(k,j,i) > 0.0 ) THEN
1496	lad_u(k,j,i) = lad_s(k,j,i)
1497	lad_u(k,j,i+1) = lad_s(k,j,i)
1498	lad_v(k,j,i) = lad_s(k,j,i)
1499	lad_v(k,j+1,i) = lad_s(k,j,i)
1500	ENDIF
1501	ENDDO
1502	DO k = nzb, nzt
1503	lad_w(k,j,i) = 0.5 * ( lad_s(k+1,j,i) + lad_s(k,j,i) )
1504	ENDDO
1505	ENDDO
1506	ENDDO
1507
1508	lad_w(pch_index,:,:) = 0.0
1509	lad_w(nzt+1,:,:) = lad_w(nzt,:,:)
1510
1511	CALL exchange_horiz( lad_u, nbgp )
1512	CALL exchange_horiz( lad_v, nbgp )
1513	CALL exchange_horiz( lad_w, nbgp )
1514
1515	!
1516	!-- Initialisation of the canopy heat source distribution
1517	IF ( cthf /= 0.0 ) THEN
1518	!
1519	!-- Piecewise evaluation of the leaf area index by
1520	!-- integration of the leaf area density
1521	lai(:,:,:) = 0.0
1522	DO i = nxlg, nxrg
1523	DO j = nysg, nyng
1524	DO k = pch_index-1, 0, -1
1525	lai(k,j,i) = lai(k+1,j,i) + &
1526	( 0.5 * ( lad_w(k+1,j,i) + &
1527	lad_s(k+1,j,i) ) * &
1528	( zw(k+1) - zu(k+1) ) ) + &
1529	( 0.5 * ( lad_w(k,j,i) + &
1530	lad_s(k+1,j,i) ) * &
1531	( zu(k+1) - zw(k) ) )
1532	ENDDO
1533	ENDDO
1534	ENDDO
1535
1536	!
1537	!-- Evaluation of the upward kinematic vertical heat flux within the
1538	!-- canopy
1539	DO i = nxlg, nxrg
1540	DO j = nysg, nyng
1541	DO k = 0, pch_index
1542	canopy_heat_flux(k,j,i) = cthf * &
1543	exp( -0.6 * lai(k,j,i) )
1544	ENDDO
1545	ENDDO
1546	ENDDO
1547
1548	!
1549	!-- The near surface heat flux is derived from the heat flux
1550	!-- distribution within the canopy
1551	shf(:,:) = canopy_heat_flux(0,:,:)
1552
1553	ENDIF
1554
1555	ENDIF
1556
1557	!
1558	!-- If required, initialize dvrp-software
1559	IF ( dt_dvrp /= 9999999.9 ) CALL init_dvrp
1560
1561	IF ( ocean ) THEN
1562	!
1563	!-- Initialize quantities needed for the ocean model
1564	CALL init_ocean
1565
1566	ELSE
1567	!
1568	!-- Initialize quantities for handling cloud physics
1569	!-- This routine must be called before lpm_init, because
1570	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
1571	!-- lpm_init) is not defined.
1572	CALL init_cloud_physics
1573	ENDIF
1574
1575	!
1576	!-- If required, initialize particles
1577	IF ( particle_advection ) CALL lpm_init
1578
1579	!
1580	!-- Initialize the ws-scheme.
1581	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
1582
1583	!
1584	!-- Setting weighting factors for calculation of perturbation pressure
1585	!-- and turbulent quantities from the RK substeps
1586	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
1587
1588	weight_substep(1) = 1./6.
1589	weight_substep(2) = 3./10.
1590	weight_substep(3) = 8./15.
1591
1592	weight_pres(1) = 1./3.
1593	weight_pres(2) = 5./12.
1594	weight_pres(3) = 1./4.
1595
1596	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
1597
1598	weight_substep(1) = 1./2.
1599	weight_substep(2) = 1./2.
1600
1601	weight_pres(1) = 1./2.
1602	weight_pres(2) = 1./2.
1603
1604	ELSE ! for Euler-method
1605
1606	weight_substep(1) = 1.0
1607	weight_pres(1) = 1.0
1608
1609	ENDIF
1610
1611	!
1612	!-- Initialize Rayleigh damping factors
1613	rdf = 0.0
1614	rdf_sc = 0.0
1615	IF ( rayleigh_damping_factor /= 0.0 ) THEN
1616	IF ( .NOT. ocean ) THEN
1617	DO k = nzb+1, nzt
1618	IF ( zu(k) >= rayleigh_damping_height ) THEN
1619	rdf(k) = rayleigh_damping_factor * &
1620	( SIN( pi * 0.5 * ( zu(k) - rayleigh_damping_height ) &
1621	/ ( zu(nzt) - rayleigh_damping_height ) )&
1622	)**2
1623	ENDIF
1624	ENDDO
1625	ELSE
1626	DO k = nzt, nzb+1, -1
1627	IF ( zu(k) <= rayleigh_damping_height ) THEN
1628	rdf(k) = rayleigh_damping_factor * &
1629	( SIN( pi * 0.5 * ( rayleigh_damping_height - zu(k) ) &
1630	/ ( rayleigh_damping_height - zu(nzb+1)))&
1631	)**2
1632	ENDIF
1633	ENDDO
1634	ENDIF
1635	ENDIF
1636	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
1637
1638	!
1639	!-- Initialize the starting level and the vertical smoothing factor used for
1640	!-- the external pressure gradient
1641	dp_smooth_factor = 1.0
1642	IF ( dp_external ) THEN
1643	!
1644	!-- Set the starting level dp_level_ind_b only if it has not been set before
1645	!-- (e.g. in init_grid).
1646	IF ( dp_level_ind_b == 0 ) THEN
1647	ind_array = MINLOC( ABS( dp_level_b - zu ) )
1648	dp_level_ind_b = ind_array(1) - 1 + nzb
1649	! MINLOC uses lower array bound 1
1650	ENDIF
1651	IF ( dp_smooth ) THEN
1652	dp_smooth_factor(:dp_level_ind_b) = 0.0
1653	DO k = dp_level_ind_b+1, nzt
1654	dp_smooth_factor(k) = 0.5 * ( 1.0 + SIN( pi * &
1655	( REAL( k - dp_level_ind_b ) / &
1656	REAL( nzt - dp_level_ind_b ) - 0.5 ) ) )
1657	ENDDO
1658	ENDIF
1659	ENDIF
1660
1661	!
1662	!-- Initialize damping zone for the potential temperature in case of
1663	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
1664	!-- at the inflow boundary and decreases to zero at pt_damping_width.
1665	ptdf_x = 0.0
1666	ptdf_y = 0.0
1667	IF ( bc_lr_dirrad .OR. bc_lr_dirneu ) THEN
1668	DO i = nxl, nxr
1669	IF ( ( i * dx ) < pt_damping_width ) THEN
1670	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5 * &
1671	REAL( pt_damping_width - i * dx ) / ( &
1672	REAL( pt_damping_width ) ) ) )**2
1673	ENDIF
1674	ENDDO
1675	ELSEIF ( bc_lr_raddir .OR. bc_lr_neudir ) THEN
1676	DO i = nxl, nxr
1677	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
1678	ptdf_x(i) = pt_damping_factor * &
1679	SIN( pi * 0.5 * ( ( i - nx ) * dx + pt_damping_width ) / &
1680	REAL( pt_damping_width ) )**2
1681	ENDIF
1682	ENDDO
1683	ELSEIF ( bc_ns_dirrad .OR. bc_ns_dirneu ) THEN
1684	DO j = nys, nyn
1685	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
1686	ptdf_y(j) = pt_damping_factor * &
1687	SIN( pi * 0.5 * ( ( j - ny ) * dy + pt_damping_width ) / &
1688	REAL( pt_damping_width ) )**2
1689	ENDIF
1690	ENDDO
1691	ELSEIF ( bc_ns_raddir .OR. bc_ns_neudir ) THEN
1692	DO j = nys, nyn
1693	IF ( ( j * dy ) < pt_damping_width ) THEN
1694	ptdf_y(j) = pt_damping_factor * &
1695	SIN( pi * 0.5 * ( pt_damping_width - j * dy ) / &
1696	REAL( pt_damping_width ) )**2
1697	ENDIF
1698	ENDDO
1699	ENDIF
1700
1701	!
1702	!-- Initialize local summation arrays for routine flow_statistics.
1703	!-- This is necessary because they may not yet have been initialized when they
1704	!-- are called from flow_statistics (or - depending on the chosen model run -
1705	!-- are never initialized)
1706	sums_divnew_l = 0.0
1707	sums_divold_l = 0.0
1708	sums_l_l = 0.0
1709	sums_up_fraction_l = 0.0
1710	sums_wsts_bc_l = 0.0
1711
1712	!
1713	!-- Pre-set masks for regional statistics. Default is the total model domain.
1714	!-- Ghost points are excluded because counting values at the ghost boundaries
1715	!-- would bias the statistics
1716	rmask = 1.0
1717	rmask(:,nxlg:nxl-1,:) = 0.0; rmask(:,nxr+1:nxrg,:) = 0.0
1718	rmask(nysg:nys-1,:,:) = 0.0; rmask(nyn+1:nyng,:,:) = 0.0
1719
1720	!
1721	!-- User-defined initializing actions. Check afterwards, if maximum number
1722	!-- of allowed timeseries is exceeded
1723	CALL user_init
1724
1725	IF ( dots_num > dots_max ) THEN
1726	WRITE( message_string, * ) 'number of time series quantities exceeds', &
1727	' its maximum of dots_max = ', dots_max, &
1728	' &Please increase dots_max in modules.f90.'
1729	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
1730	ENDIF
1731
1732	!
1733	!-- Input binary data file is not needed anymore. This line must be placed
1734	!-- after call of user_init!
1735	CALL close_file( 13 )
1736
1737	!
1738	!-- Compute total sum of active mask grid points
1739	!-- ngp_2dh: number of grid points of a horizontal cross section through the
1740	!-- total domain
1741	!-- ngp_3d: number of grid points of the total domain
1742	ngp_2dh_outer_l = 0
1743	ngp_2dh_outer = 0
1744	ngp_2dh_s_inner_l = 0
1745	ngp_2dh_s_inner = 0
1746	ngp_2dh_l = 0
1747	ngp_2dh = 0
1748	ngp_3d_inner_l = 0.0
1749	ngp_3d_inner = 0
1750	ngp_3d = 0
1751	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
1752
1753	DO sr = 0, statistic_regions
1754	DO i = nxl, nxr
1755	DO j = nys, nyn
1756	IF ( rmask(j,i,sr) == 1.0 ) THEN
1757	!
1758	!-- All xy-grid points
1759	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
1760	!
1761	!-- xy-grid points above topography
1762	DO k = nzb_s_outer(j,i), nz + 1
1763	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
1764	ENDDO
1765	DO k = nzb_s_inner(j,i), nz + 1
1766	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
1767	ENDDO
1768	!
1769	!-- All grid points of the total domain above topography
1770	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
1771	( nz - nzb_s_inner(j,i) + 2 )
1772	ENDIF
1773	ENDDO
1774	ENDDO
1775	ENDDO
1776
1777	sr = statistic_regions + 1
1778	#if defined( __parallel )
1779	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1780	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
1781	comm2d, ierr )
1782	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1783	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
1784	MPI_INTEGER, MPI_SUM, comm2d, ierr )
1785	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1786	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
1787	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
1788	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1789	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
1790	MPI_SUM, comm2d, ierr )
1791	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
1792	#else
1793	ngp_2dh = ngp_2dh_l
1794	ngp_2dh_outer = ngp_2dh_outer_l
1795	ngp_2dh_s_inner = ngp_2dh_s_inner_l
1796	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
1797	#endif
1798
1799	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
1800	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
1801
1802	!
1803	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
1804	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
1805	!-- the respective subdomain lie below the surface topography
1806	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
1807	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
1808	ngp_3d_inner(:) )
1809	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
1810
1811	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, ngp_3d_inner_tmp )
1812
1813
1814	END SUBROUTINE init_3d_model

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