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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1316

Last change on this file since 1316 was 1316, checked in by heinze, 10 years ago
bugfix: allocation of w_subs
Property svn:keywords set to `Id`
File size: 66.6 KB

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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 1997-2014 Leibniz Universitaet Hannover
21	!--------------------------------------------------------------------------------!
22	!
23	! Current revisions:
24	! ------------------
25	! Bugfix: allocation of w_subs
26	!
27	! Former revisions:
28	! -----------------
29	! $Id: init_3d_model.f90 1316 2014-03-17 07:44:59Z heinze $
30	!
31	! 1299 2014-03-06 13:15:21Z heinze
32	! Allocate w_subs due to extension of large scale subsidence in combination
33	! with large scale forcing data (LSF_DATA)
34	!
35	! 1241 2013-10-30 11:36:58Z heinze
36	! Overwrite initial profiles in case of nudging
37	! Inititialize shf and qsws in case of large_scale_forcing
38	!
39	! 1221 2013-09-10 08:59:13Z raasch
40	! +rflags_s_inner in copyin statement, use copyin for most arrays instead of
41	! copy
42	!
43	! 1212 2013-08-15 08:46:27Z raasch
44	! array tri is allocated and included in data copy statement
45	!
46	! 1195 2013-07-01 12:27:57Z heinze
47	! Bugfix: move allocation of ref_state to parin.f90 and read_var_list.f90
48	!
49	! 1179 2013-06-14 05:57:58Z raasch
50	! allocate and set ref_state to be used in buoyancy terms
51	!
52	! 1171 2013-05-30 11:27:45Z raasch
53	! diss array is allocated with full size if accelerator boards are used
54	!
55	! 1159 2013-05-21 11:58:22Z fricke
56	! -bc_lr_dirneu, bc_lr_neudir, bc_ns_dirneu, bc_ns_neudir
57	!
58	! 1153 2013-05-10 14:33:08Z raasch
59	! diss array is allocated with dummy elements even if it is not needed
60	! (required by PGI 13.4 / CUDA 5.0)
61	!
62	! 1115 2013-03-26 18:16:16Z hoffmann
63	! unused variables removed
64	!
65	! 1113 2013-03-10 02:48:14Z raasch
66	! openACC directive modified
67	!
68	! 1111 2013-03-08 23:54:10Z raasch
69	! openACC directives added for pres
70	! array diss allocated only if required
71	!
72	! 1092 2013-02-02 11:24:22Z raasch
73	! unused variables removed
74	!
75	! 1065 2012-11-22 17:42:36Z hoffmann
76	! allocation of diss (dissipation rate) in case of turbulence = .TRUE. added
77	!
78	! 1053 2012-11-13 17:11:03Z hoffmann
79	! allocation and initialisation of necessary data arrays for the two-moment
80	! cloud physics scheme the two new prognostic equations (nr, qr):
81	! +dr, lambda_r, mu_r, sed_, xr, s, sws, swst, , _p, t_m, _1, _2, _3,
82	! +tend_*, prr
83	!
84	! 1036 2012-10-22 13:43:42Z raasch
85	! code put under GPL (PALM 3.9)
86	!
87	! 1032 2012-10-21 13:03:21Z letzel
88	! save memory by not allocating pt_2 in case of neutral = .T.
89	!
90	! 1025 2012-10-07 16:04:41Z letzel
91	! bugfix: swap indices of mask for ghost boundaries
92	!
93	! 1015 2012-09-27 09:23:24Z raasch
94	! mask is set to zero for ghost boundaries
95	!
96	! 1010 2012-09-20 07:59:54Z raasch
97	! cpp switch __nopointer added for pointer free version
98	!
99	! 1003 2012-09-14 14:35:53Z raasch
100	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
101	!
102	! 1001 2012-09-13 14:08:46Z raasch
103	! all actions concerning leapfrog scheme removed
104	!
105	! 996 2012-09-07 10:41:47Z raasch
106	! little reformatting
107	!
108	! 978 2012-08-09 08:28:32Z fricke
109	! outflow damping layer removed
110	! roughness length for scalar quantites z0h added
111	! damping zone for the potential temperatur in case of non-cyclic lateral
112	! boundaries added
113	! initialization of ptdf_x, ptdf_y
114	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
115	!
116	! 849 2012-03-15 10:35:09Z raasch
117	! init_particles renamed lpm_init
118	!
119	! 825 2012-02-19 03:03:44Z raasch
120	! wang_collision_kernel renamed wang_kernel
121	!
122	! 790 2011-11-29 03:11:20Z raasch
123	! diss is also allocated in case that the Wang kernel is used
124	!
125	! 787 2011-11-28 12:49:05Z heinze $
126	! bugfix: call init_advec in every case - not only for inital runs
127	!
128	! 785 2011-11-28 09:47:19Z raasch
129	! initialization of rdf_sc
130	!
131	! 767 2011-10-14 06:39:12Z raasch
132	! adjustments concerning implementation of prescribed u,v-profiles
133	! bugfix: dirichlet_0 conditions for ug/vg moved to check_parameters
134	!
135	! 759 2011-09-15 13:58:31Z raasch
136	! Splitting of parallel I/O in blocks of PEs
137	! Bugfix: No zero assignments to volume_flow_initial and volume_flow_area in
138	! case of normal restart runs.
139	!
140	! 713 2011-03-30 14:21:21Z suehring
141	! weight_substep and weight_pres are given as fractions.
142	!
143	! 709 2011-03-30 09:31:40Z raasch
144	! formatting adjustments
145	!
146	! 707 2011-03-29 11:39:40Z raasch
147	! p_sub renamed p_loc and allocated depending on the chosen pressure solver,
148	! initial assignments of zero to array p for iterative solvers only,
149	! bc_lr/ns replaced by bc_lr/ns_dirrad/raddir
150	!
151	! 680 2011-02-04 23:16:06Z gryschka
152	! bugfix: volume_flow_control
153	!
154	! 673 2011-01-18 16:19:48Z suehring
155	! weight_substep (moved from advec_ws) and weight_pres added.
156	! Allocate p_sub when using Multigrid or SOR solver.
157	! Call of ws_init moved behind the if requests.
158	!
159	! 667 2010-12-23 12:06:00Z suehring/gryschka
160	! nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng in loops and
161	! allocation of arrays. Calls of exchange_horiz are modified.
162	! Call ws_init to initialize arrays needed for calculating statisticas and for
163	! optimization when ws-scheme is used.
164	! Initial volume flow is now calculated by using the variable hom_sum.
165	! Therefore the correction of initial volume flow for non-flat topography
166	! removed (removed u_nzb_p1_for_vfc and v_nzb_p1_for_vfc)
167	! Changed surface boundary conditions for u and v in case of ibc_uv_b == 0 from
168	! mirror to Dirichlet boundary conditions (u=v=0), so that k=nzb is
169	! representative for the height z0.
170	! Bugfix: type conversion of '1' to 64bit for the MAX function (ngp_3d_inner)
171	!
172	! 622 2010-12-10 08:08:13Z raasch
173	! optional barriers included in order to speed up collective operations
174	!
175	! 560 2010-09-09 10:06:09Z weinreis
176	! bugfix: correction of calculating ngp_3d for 64 bit
177	!
178	! 485 2010-02-05 10:57:51Z raasch
179	! calculation of ngp_3d + ngp_3d_inner changed because they have now 64 bit
180	!
181	! 407 2009-12-01 15:01:15Z maronga
182	! var_ts is replaced by dots_max
183	! Enabled passive scalar/humidity wall fluxes for non-flat topography
184	!
185	! 388 2009-09-23 09:40:33Z raasch
186	! Initialization of prho added.
187	! bugfix: correction of initial volume flow for non-flat topography
188	! bugfix: zero initialization of arrays within buildings for 'cyclic_fill'
189	! bugfix: avoid that ngp_2dh_s_inner becomes zero
190	! initializing_actions='read_data_for_recycling' renamed to 'cyclic_fill', now
191	! independent of turbulent_inflow
192	! Output of messages replaced by message handling routine.
193	! Set the starting level and the vertical smoothing factor used for
194	! the external pressure gradient
195	! +conserve_volume_flow_mode: 'default', 'initial_profiles', 'inflow_profile'
196	! and 'bulk_velocity'
197	! If the inversion height calculated by the prerun is zero,
198	! inflow_damping_height must be explicitly specified.
199	!
200	! 181 2008-07-30 07:07:47Z raasch
201	! bugfix: zero assignments to tendency arrays in case of restarts,
202	! further extensions and modifications in the initialisation of the plant
203	! canopy model,
204	! allocation of hom_sum moved to parin, initialization of spectrum_x\|y directly
205	! after allocating theses arrays,
206	! read data for recycling added as new initialization option,
207	! dummy allocation for diss
208	!
209	! 138 2007-11-28 10:03:58Z letzel
210	! New counter ngp_2dh_s_inner.
211	! Allow new case bc_uv_t = 'dirichlet_0' for channel flow.
212	! Corrected calculation of initial volume flow for 'set_1d-model_profiles' and
213	! 'set_constant_profiles' in case of buildings in the reference cross-sections.
214	!
215	! 108 2007-08-24 15:10:38Z letzel
216	! Flux initialization in case of coupled runs, +momentum fluxes at top boundary,
217	! +arrays for phase speed c_u, c_v, c_w, indices for u\|v\|w_m_l\|r changed
218	! +qswst_remote in case of atmosphere model with humidity coupled to ocean
219	! Rayleigh damping for ocean, optionally calculate km and kh from initial
220	! TKE e_init
221	!
222	! 97 2007-06-21 08:23:15Z raasch
223	! Initialization of salinity, call of init_ocean
224	!
225	! 87 2007-05-22 15:46:47Z raasch
226	! var_hom and var_sum renamed pr_palm
227	!
228	! 75 2007-03-22 09:54:05Z raasch
229	! Arrays for radiation boundary conditions are allocated (u_m_l, u_m_r, etc.),
230	! bugfix for cases with the outflow damping layer extending over more than one
231	! subdomain, moisture renamed humidity,
232	! new initializing action "by_user" calls user_init_3d_model,
233	! precipitation_amount/rate, ts_value are allocated, +module netcdf_control,
234	! initial velocities at nzb+1 are regarded for volume
235	! flow control in case they have been set zero before (to avoid small timesteps)
236	! -uvmean_outflow, uxrp, vynp eliminated
237	!
238	! 19 2007-02-23 04:53:48Z raasch
239	! +handling of top fluxes
240	!
241	! RCS Log replace by Id keyword, revision history cleaned up
242	!
243	! Revision 1.49 2006/08/22 15:59:07 raasch
244	! No optimization of this file on the ibmy (Yonsei Univ.)
245	!
246	! Revision 1.1 1998/03/09 16:22:22 raasch
247	! Initial revision
248	!
249	!
250	! Description:
251	! ------------
252	! Allocation of arrays and initialization of the 3D model via
253	! a) pre-run the 1D model
254	! or
255	! b) pre-set constant linear profiles
256	! or
257	! c) read values of a previous run
258	!------------------------------------------------------------------------------!
259
260	USE advec_ws
261	USE arrays_3d
262	USE averaging
263	USE cloud_parameters
264	USE constants
265	USE control_parameters
266	USE cpulog
267	USE grid_variables
268	USE indices
269	USE interfaces
270	USE ls_forcing_mod
271	USE model_1d
272	USE netcdf_control
273	USE particle_attributes
274	USE pegrid
275	USE profil_parameter
276	USE random_function_mod
277	USE statistics
278	USE transpose_indices
279
280	IMPLICIT NONE
281
282	INTEGER :: i, ind_array(1), j, k, sr
283
284	INTEGER, DIMENSION(:), ALLOCATABLE :: ngp_2dh_l
285
286	INTEGER, DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l, &
287	ngp_2dh_s_inner_l
288
289	REAL, DIMENSION(1:2) :: volume_flow_area_l, volume_flow_initial_l
290
291	REAL, DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l, ngp_3d_inner_tmp
292
293
294	!
295	!-- Allocate arrays
296	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
297	ngp_3d(0:statistic_regions), &
298	ngp_3d_inner(0:statistic_regions), &
299	ngp_3d_inner_l(0:statistic_regions), &
300	ngp_3d_inner_tmp(0:statistic_regions), &
301	sums_divnew_l(0:statistic_regions), &
302	sums_divold_l(0:statistic_regions) )
303	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
304	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
305	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
306	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
307	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
308	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
309	sums(nzb:nzt+1,pr_palm+max_pr_user), &
310	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
311	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
312	sums_up_fraction_l(10,3,0:statistic_regions), &
313	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
314	ts_value(dots_max,0:statistic_regions) )
315	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
316
317	ALLOCATE( rif(nysg:nyng,nxlg:nxrg), shf(nysg:nyng,nxlg:nxrg), &
318	ts(nysg:nyng,nxlg:nxrg), tswst(nysg:nyng,nxlg:nxrg), &
319	us(nysg:nyng,nxlg:nxrg), usws(nysg:nyng,nxlg:nxrg), &
320	uswst(nysg:nyng,nxlg:nxrg), vsws(nysg:nyng,nxlg:nxrg), &
321	vswst(nysg:nyng,nxlg:nxrg), z0(nysg:nyng,nxlg:nxrg), &
322	z0h(nysg:nyng,nxlg:nxrg) )
323
324	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
325	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
326	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
327	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
328	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
329
330	#if defined( __nopointer )
331	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
332	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
333	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
334	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
335	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
336	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
337	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
338	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
339	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
340	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
341	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
342	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
343	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
344	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
345	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
346	#else
347	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
348	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
349	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
350	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
351	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
352	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
353	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
354	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
355	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
356	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
357	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
358	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
359	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
360	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
361	IF ( .NOT. neutral ) THEN
362	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
363	ENDIF
364	#endif
365
366	!
367	!-- Following array is required for perturbation pressure within the iterative
368	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
369	!-- the weighted average of the substeps and cannot be used in the Poisson
370	!-- solver.
371	IF ( psolver == 'sor' ) THEN
372	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
373	ELSEIF ( psolver == 'multigrid' ) THEN
374	!
375	!-- For performance reasons, multigrid is using one ghost layer only
376	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
377	ENDIF
378
379	!
380	!-- Array for storing constant coeffficients of the tridiagonal solver
381	IF ( psolver == 'poisfft' ) THEN
382	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
383	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
384	ENDIF
385
386	IF ( humidity .OR. passive_scalar ) THEN
387	!
388	!-- 2D-humidity/scalar arrays
389	ALLOCATE ( qs(nysg:nyng,nxlg:nxrg), &
390	qsws(nysg:nyng,nxlg:nxrg), &
391	qswst(nysg:nyng,nxlg:nxrg) )
392
393	!
394	!-- 3D-humidity/scalar arrays
395	#if defined( __nopointer )
396	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
397	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
398	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
399	#else
400	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
401	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
402	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
403	#endif
404
405	!
406	!-- 3D-arrays needed for humidity only
407	IF ( humidity ) THEN
408	#if defined( __nopointer )
409	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
410	#else
411	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
412	#endif
413
414	IF ( cloud_physics ) THEN
415
416	!
417	!-- Liquid water content
418	#if defined( __nopointer )
419	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
420	#else
421	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
422	#endif
423	!
424	!-- Precipitation amount and rate (only needed if output is switched)
425	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
426	precipitation_rate(nysg:nyng,nxlg:nxrg) )
427
428	IF ( icloud_scheme == 0 ) THEN
429	!
430	!-- 1D-arrays
431	ALLOCATE ( nc_1d(nzb:nzt+1), pt_1d(nzb:nzt+1), &
432	q_1d(nzb:nzt+1), qc_1d(nzb:nzt+1) )
433	!
434	!-- 3D-cloud water content
435	#if defined( __nopointer )
436	ALLOCATE( qc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
437	#else
438	ALLOCATE( qc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
439	#endif
440	!
441	!-- 3D-tendency arrays
442	ALLOCATE( tend_pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
443	tend_q(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
444
445	IF ( precipitation ) THEN
446	!
447	!-- 1D-arrays
448	ALLOCATE ( nr_1d(nzb:nzt+1), qr_1d(nzb:nzt+1) )
449	!
450	!
451	!-- 3D-tendency arrays
452	ALLOCATE( tend_nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
453	tend_qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
454	!
455	!-- 2D-rain water content and rain drop concentration arrays
456	ALLOCATE ( qrs(nysg:nyng,nxlg:nxrg), &
457	qrsws(nysg:nyng,nxlg:nxrg), &
458	qrswst(nysg:nyng,nxlg:nxrg), &
459	nrs(nysg:nyng,nxlg:nxrg), &
460	nrsws(nysg:nyng,nxlg:nxrg), &
461	nrswst(nysg:nyng,nxlg:nxrg) )
462	!
463	!-- 3D-rain water content, rain drop concentration arrays
464	#if defined( __nopointer )
465	ALLOCATE( nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
466	nr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
467	qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
468	qr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
469	tnr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
470	tqr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
471	#else
472	ALLOCATE( nr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
473	nr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
474	nr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
475	qr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
476	qr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
477	qr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
478	#endif
479	!
480	!-- 3d-precipitation rate
481	ALLOCATE( prr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
482	ENDIF
483
484	ENDIF
485	ENDIF
486
487	IF ( cloud_droplets ) THEN
488	!
489	!-- Liquid water content, change in liquid water content
490	#if defined( __nopointer )
491	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
492	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
493	#else
494	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
495	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
496	#endif
497	!
498	!-- Real volume of particles (with weighting), volume of particles
499	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
500	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
501	ENDIF
502
503	ENDIF
504
505	ENDIF
506
507	IF ( ocean ) THEN
508	ALLOCATE( saswsb(nysg:nyng,nxlg:nxrg), &
509	saswst(nysg:nyng,nxlg:nxrg) )
510	#if defined( __nopointer )
511	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
512	rho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
513	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
514	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
515	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
516	#else
517	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
518	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
519	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
520	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
521	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
522	prho => prho_1
523	rho => rho_1 ! routines calc_mean_profile and diffusion_e require
524	! density to be apointer
525	#endif
526	IF ( humidity_remote ) THEN
527	ALLOCATE( qswst_remote(nysg:nyng,nxlg:nxrg))
528	qswst_remote = 0.0
529	ENDIF
530	ENDIF
531
532	!
533	!-- 3D-array for storing the dissipation, needed for calculating the sgs
534	!-- particle velocities
535	IF ( use_sgs_for_particles .OR. wang_kernel .OR. turbulence .OR. &
536	num_acc_per_node > 0 ) THEN
537	ALLOCATE( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
538	ENDIF
539
540	IF ( dt_dosp /= 9999999.9 ) THEN
541	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
542	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
543	spectrum_x = 0.0
544	spectrum_y = 0.0
545	ENDIF
546
547	!
548	!-- 1D-array for large scale subsidence velocity
549	ALLOCATE ( w_subs(nzb:nzt+1) )
550	w_subs = 0.0
551
552
553	!
554	!-- 3D-arrays for the leaf area density and the canopy drag coefficient
555	IF ( plant_canopy ) THEN
556	ALLOCATE ( lad_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
557	lad_u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
558	lad_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
559	lad_w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
560	cdc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
561
562	IF ( passive_scalar ) THEN
563	ALLOCATE ( sls(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
564	sec(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
565	ENDIF
566
567	IF ( cthf /= 0.0 ) THEN
568	ALLOCATE ( lai(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
569	canopy_heat_flux(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
570	ENDIF
571
572	ENDIF
573
574	!
575	!-- 4D-array for storing the Rif-values at vertical walls
576	IF ( topography /= 'flat' ) THEN
577	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
578	rif_wall = 0.0
579	ENDIF
580
581	!
582	!-- Arrays to store velocity data from t-dt and the phase speeds which
583	!-- are needed for radiation boundary conditions
584	IF ( outflow_l ) THEN
585	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
586	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
587	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
588	ENDIF
589	IF ( outflow_r ) THEN
590	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
591	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
592	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
593	ENDIF
594	IF ( outflow_l .OR. outflow_r ) THEN
595	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
596	c_w(nzb:nzt+1,nysg:nyng) )
597	ENDIF
598	IF ( outflow_s ) THEN
599	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
600	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
601	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
602	ENDIF
603	IF ( outflow_n ) THEN
604	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
605	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
606	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
607	ENDIF
608	IF ( outflow_s .OR. outflow_n ) THEN
609	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
610	c_w(nzb:nzt+1,nxlg:nxrg) )
611	ENDIF
612	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
613	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
614	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
615	ENDIF
616
617
618	#if ! defined( __nopointer )
619	!
620	!-- Initial assignment of the pointers
621	e => e_1; e_p => e_2; te_m => e_3
622	IF ( .NOT. neutral ) THEN
623	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
624	ELSE
625	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
626	ENDIF
627	u => u_1; u_p => u_2; tu_m => u_3
628	v => v_1; v_p => v_2; tv_m => v_3
629	w => w_1; w_p => w_2; tw_m => w_3
630
631	IF ( humidity .OR. passive_scalar ) THEN
632	q => q_1; q_p => q_2; tq_m => q_3
633	IF ( humidity ) THEN
634	vpt => vpt_1
635	IF ( cloud_physics ) THEN
636	ql => ql_1
637	IF ( icloud_scheme == 0 ) THEN
638	qc => qc_1
639	IF ( precipitation ) THEN
640	qr => qr_1; qr_p => qr_2; tqr_m => qr_3
641	nr => nr_1; nr_p => nr_2; tnr_m => nr_3
642	ENDIF
643	ENDIF
644	ENDIF
645	ENDIF
646	IF ( cloud_droplets ) THEN
647	ql => ql_1
648	ql_c => ql_2
649	ENDIF
650	ENDIF
651
652	IF ( ocean ) THEN
653	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
654	ENDIF
655	#endif
656
657	!
658	!-- Allocate arrays containing the RK coefficient for calculation of
659	!-- perturbation pressure and turbulent fluxes. At this point values are
660	!-- set for pressure calculation during initialization (where no timestep
661	!-- is done). Further below the values needed within the timestep scheme
662	!-- will be set.
663	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
664	weight_pres(1:intermediate_timestep_count_max) )
665	weight_substep = 1.0
666	weight_pres = 1.0
667	intermediate_timestep_count = 1 ! needed when simulated_time = 0.0
668
669	!
670	!-- Initialize model variables
671	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
672	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
673	!
674	!-- First model run of a possible job queue.
675	!-- Initial profiles of the variables must be computes.
676	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
677	!
678	!-- Use solutions of the 1D model as initial profiles,
679	!-- start 1D model
680	CALL init_1d_model
681	!
682	!-- Transfer initial profiles to the arrays of the 3D model
683	DO i = nxlg, nxrg
684	DO j = nysg, nyng
685	e(:,j,i) = e1d
686	kh(:,j,i) = kh1d
687	km(:,j,i) = km1d
688	pt(:,j,i) = pt_init
689	u(:,j,i) = u1d
690	v(:,j,i) = v1d
691	ENDDO
692	ENDDO
693
694	IF ( humidity .OR. passive_scalar ) THEN
695	DO i = nxlg, nxrg
696	DO j = nysg, nyng
697	q(:,j,i) = q_init
698	ENDDO
699	ENDDO
700	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
701	precipitation ) THEN
702	DO i = nxlg, nxrg
703	DO j = nysg, nyng
704	qr(:,j,i) = 0.0
705	nr(:,j,i) = 0.0
706	ENDDO
707	ENDDO
708	!
709	!-- Initialze nc_1d with default value
710	nc_1d(:) = nc_const
711
712	ENDIF
713	ENDIF
714
715	IF ( .NOT. constant_diffusion ) THEN
716	DO i = nxlg, nxrg
717	DO j = nysg, nyng
718	e(:,j,i) = e1d
719	ENDDO
720	ENDDO
721	!
722	!-- Store initial profiles for output purposes etc.
723	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
724
725	IF ( prandtl_layer ) THEN
726	rif = rif1d(nzb+1)
727	ts = 0.0 ! could actually be computed more accurately in the
728	! 1D model. Update when opportunity arises.
729	us = us1d
730	usws = usws1d
731	vsws = vsws1d
732	ELSE
733	ts = 0.0 ! must be set, because used in
734	rif = 0.0 ! flowste
735	us = 0.0
736	usws = 0.0
737	vsws = 0.0
738	ENDIF
739
740	ELSE
741	e = 0.0 ! must be set, because used in
742	rif = 0.0 ! flowste
743	ts = 0.0
744	us = 0.0
745	usws = 0.0
746	vsws = 0.0
747	ENDIF
748	uswst = top_momentumflux_u
749	vswst = top_momentumflux_v
750
751	!
752	!-- In every case qs = 0.0 (see also pt)
753	!-- This could actually be computed more accurately in the 1D model.
754	!-- Update when opportunity arises!
755	IF ( humidity .OR. passive_scalar ) THEN
756	qs = 0.0
757	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
758	precipitation ) THEN
759	qrs = 0.0
760	nrs = 0.0
761	ENDIF
762	ENDIF
763
764	!
765	!-- inside buildings set velocities back to zero
766	IF ( topography /= 'flat' ) THEN
767	DO i = nxl-1, nxr+1
768	DO j = nys-1, nyn+1
769	u(nzb:nzb_u_inner(j,i),j,i) = 0.0
770	v(nzb:nzb_v_inner(j,i),j,i) = 0.0
771	ENDDO
772	ENDDO
773
774	!
775	!-- WARNING: The extra boundary conditions set after running the
776	!-- ------- 1D model impose an error on the divergence one layer
777	!-- below the topography; need to correct later
778	!-- ATTENTION: Provisional correction for Piacsek & Williams
779	!-- --------- advection scheme: keep u and v zero one layer below
780	!-- the topography.
781	IF ( ibc_uv_b == 1 ) THEN
782	!
783	!-- Neumann condition
784	DO i = nxl-1, nxr+1
785	DO j = nys-1, nyn+1
786	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
787	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
788	ENDDO
789	ENDDO
790
791	ENDIF
792
793	ENDIF
794
795	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
796	THEN
797
798	!
799	!-- Overwrite initial profiles in case of nudging
800	IF ( nudging ) THEN
801	pt_init = ptnudge(:,1)
802	u_init = unudge(:,1)
803	v_init = vnudge(:,1)
804	IF ( humidity .OR. passive_scalar ) THEN
805	q_init = qnudge(:,1)
806	ENDIF
807
808	WRITE( message_string, * ) 'Initial profiles of u, v and ', &
809	'scalars from NUDGING_DATA are used.'
810	CALL message( 'init_3d_model', 'PA0370', 0, 0, 0, 6, 0 )
811	ENDIF
812
813	!
814	!-- Use constructed initial profiles (velocity constant with height,
815	!-- temperature profile with constant gradient)
816	DO i = nxlg, nxrg
817	DO j = nysg, nyng
818	pt(:,j,i) = pt_init
819	u(:,j,i) = u_init
820	v(:,j,i) = v_init
821	ENDDO
822	ENDDO
823
824	!
825	!-- Set initial horizontal velocities at the lowest computational grid
826	!-- levels to zero in order to avoid too small time steps caused by the
827	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
828	!-- in the limiting formula!). The original values are stored to be later
829	!-- used for volume flow control.
830	DO i = nxlg, nxrg
831	DO j = nysg, nyng
832	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0
833	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0
834	ENDDO
835	ENDDO
836
837	IF ( humidity .OR. passive_scalar ) THEN
838	DO i = nxlg, nxrg
839	DO j = nysg, nyng
840	q(:,j,i) = q_init
841	ENDDO
842	ENDDO
843	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
844	!
845	!-- Initialze nc_1d with default value
846	nc_1d(:) = nc_const
847
848	IF ( precipitation ) THEN
849	DO i = nxlg, nxrg
850	DO j = nysg, nyng
851	qr(:,j,i) = 0.0
852	nr(:,j,i) = 0.0
853	ENDDO
854	ENDDO
855	ENDIF
856
857	ENDIF
858	ENDIF
859
860	IF ( ocean ) THEN
861	DO i = nxlg, nxrg
862	DO j = nysg, nyng
863	sa(:,j,i) = sa_init
864	ENDDO
865	ENDDO
866	ENDIF
867
868	IF ( constant_diffusion ) THEN
869	km = km_constant
870	kh = km / prandtl_number
871	e = 0.0
872	ELSEIF ( e_init > 0.0 ) THEN
873	DO k = nzb+1, nzt
874	km(k,:,:) = 0.1 * l_grid(k) * SQRT( e_init )
875	ENDDO
876	km(nzb,:,:) = km(nzb+1,:,:)
877	km(nzt+1,:,:) = km(nzt,:,:)
878	kh = km / prandtl_number
879	e = e_init
880	ELSE
881	IF ( .NOT. ocean ) THEN
882	kh = 0.01 ! there must exist an initial diffusion, because
883	km = 0.01 ! otherwise no TKE would be produced by the
884	! production terms, as long as not yet
885	! e = (u/cm)*2 at k=nzb+1
886	ELSE
887	kh = 0.00001
888	km = 0.00001
889	ENDIF
890	e = 0.0
891	ENDIF
892	rif = 0.0
893	ts = 0.0
894	us = 0.0
895	usws = 0.0
896	uswst = top_momentumflux_u
897	vsws = 0.0
898	vswst = top_momentumflux_v
899	IF ( humidity .OR. passive_scalar ) qs = 0.0
900
901	!
902	!-- Compute initial temperature field and other constants used in case
903	!-- of a sloping surface
904	IF ( sloping_surface ) CALL init_slope
905
906	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
907	THEN
908	!
909	!-- Initialization will completely be done by the user
910	CALL user_init_3d_model
911
912	ENDIF
913	!
914	!-- Bottom boundary
915	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
916	u(nzb,:,:) = 0.0
917	v(nzb,:,:) = 0.0
918	ENDIF
919
920	!
921	!-- Apply channel flow boundary condition
922	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
923	u(nzt+1,:,:) = 0.0
924	v(nzt+1,:,:) = 0.0
925	ENDIF
926
927	!
928	!-- Calculate virtual potential temperature
929	IF ( humidity ) vpt = pt * ( 1.0 + 0.61 * q )
930
931	!
932	!-- Store initial profiles for output purposes etc.
933	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
934	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
935	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
936	hom(nzb,1,5,:) = 0.0
937	hom(nzb,1,6,:) = 0.0
938	ENDIF
939	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
940	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
941	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
942
943	IF ( ocean ) THEN
944	!
945	!-- Store initial salinity profile
946	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
947	ENDIF
948
949	IF ( humidity ) THEN
950	!
951	!-- Store initial profile of total water content, virtual potential
952	!-- temperature
953	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
954	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
955	IF ( cloud_physics .OR. cloud_droplets ) THEN
956	!
957	!-- Store initial profile of specific humidity and potential
958	!-- temperature
959	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
960	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
961	ENDIF
962	ENDIF
963
964	IF ( passive_scalar ) THEN
965	!
966	!-- Store initial scalar profile
967	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
968	ENDIF
969
970	!
971	!-- Initialize fluxes at bottom surface
972	IF ( use_surface_fluxes ) THEN
973
974	IF ( constant_heatflux ) THEN
975	!
976	!-- Heat flux is prescribed
977	IF ( random_heatflux ) THEN
978	CALL disturb_heatflux
979	ELSE
980	shf = surface_heatflux
981	!
982	!-- Initialize shf with data from external file LSF_DATA
983	IF ( large_scale_forcing .AND. lsf_surf ) THEN
984	CALL ls_forcing_surf ( simulated_time )
985	ENDIF
986
987	!
988	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
989	IF ( TRIM( topography ) /= 'flat' ) THEN
990	DO i = nxlg, nxrg
991	DO j = nysg, nyng
992	IF ( nzb_s_inner(j,i) /= 0 ) THEN
993	shf(j,i) = wall_heatflux(0)
994	ENDIF
995	ENDDO
996	ENDDO
997	ENDIF
998	ENDIF
999	ENDIF
1000
1001	!
1002	!-- Determine the near-surface water flux
1003	IF ( humidity .OR. passive_scalar ) THEN
1004	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1005	precipitation ) THEN
1006	qrsws = 0.0
1007	nrsws = 0.0
1008	ENDIF
1009	IF ( constant_waterflux ) THEN
1010	qsws = surface_waterflux
1011	!
1012	!-- Over topography surface_waterflux is replaced by
1013	!-- wall_humidityflux(0)
1014	IF ( TRIM( topography ) /= 'flat' ) THEN
1015	wall_qflux = wall_humidityflux
1016	DO i = nxlg, nxrg
1017	DO j = nysg, nyng
1018	IF ( nzb_s_inner(j,i) /= 0 ) THEN
1019	qsws(j,i) = wall_qflux(0)
1020	ENDIF
1021	ENDDO
1022	ENDDO
1023	ENDIF
1024	ENDIF
1025	ENDIF
1026
1027	ENDIF
1028
1029	!
1030	!-- Initialize fluxes at top surface
1031	!-- Currently, only the heatflux and salinity flux can be prescribed.
1032	!-- The latent flux is zero in this case!
1033	IF ( use_top_fluxes ) THEN
1034
1035	IF ( constant_top_heatflux ) THEN
1036	!
1037	!-- Heat flux is prescribed
1038	tswst = top_heatflux
1039
1040	IF ( humidity .OR. passive_scalar ) THEN
1041	qswst = 0.0
1042	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1043	precipitation ) THEN
1044	nrswst = 0.0
1045	qrswst = 0.0
1046	ENDIF
1047	ENDIF
1048
1049	IF ( ocean ) THEN
1050	saswsb = bottom_salinityflux
1051	saswst = top_salinityflux
1052	ENDIF
1053	ENDIF
1054
1055	!
1056	!-- Initialization in case of a coupled model run
1057	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
1058	tswst = 0.0
1059	ENDIF
1060
1061	ENDIF
1062
1063	!
1064	!-- Initialize Prandtl layer quantities
1065	IF ( prandtl_layer ) THEN
1066
1067	z0 = roughness_length
1068	z0h = z0h_factor * z0
1069
1070	IF ( .NOT. constant_heatflux ) THEN
1071	!
1072	!-- Surface temperature is prescribed. Here the heat flux cannot be
1073	!-- simply estimated, because therefore rif, u* and theta* would have
1074	!-- to be computed by iteration. This is why the heat flux is assumed
1075	!-- to be zero before the first time step. It approaches its correct
1076	!-- value in the course of the first few time steps.
1077	shf = 0.0
1078	ENDIF
1079
1080	IF ( humidity .OR. passive_scalar ) THEN
1081	IF ( .NOT. constant_waterflux ) qsws = 0.0
1082	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1083	precipitation ) THEN
1084	qrsws = 0.0
1085	nrsws = 0.0
1086	ENDIF
1087	ENDIF
1088
1089	ENDIF
1090
1091	!
1092	!-- Set the reference state to be used in the buoyancy terms (for ocean runs
1093	!-- the reference state will be set (overwritten) in init_ocean)
1094	IF ( use_single_reference_value ) THEN
1095	IF ( .NOT. humidity ) THEN
1096	ref_state(:) = pt_reference
1097	ELSE
1098	ref_state(:) = vpt_reference
1099	ENDIF
1100	ELSE
1101	IF ( .NOT. humidity ) THEN
1102	ref_state(:) = pt_init(:)
1103	ELSE
1104	ref_state(:) = vpt(:,nys,nxl)
1105	ENDIF
1106	ENDIF
1107
1108	!
1109	!-- For the moment, vertical velocity is zero
1110	w = 0.0
1111
1112	!
1113	!-- Initialize array sums (must be defined in first call of pres)
1114	sums = 0.0
1115
1116	!
1117	!-- In case of iterative solvers, p must get an initial value
1118	IF ( psolver == 'multigrid' .OR. psolver == 'sor' ) p = 0.0
1119
1120	!
1121	!-- Treating cloud physics, liquid water content and precipitation amount
1122	!-- are zero at beginning of the simulation
1123	IF ( cloud_physics ) THEN
1124	ql = 0.0
1125	IF ( precipitation ) precipitation_amount = 0.0
1126	IF ( icloud_scheme == 0 ) THEN
1127	qc = 0.0
1128	nc_1d = nc_const
1129	ENDIF
1130	ENDIF
1131	!
1132	!-- Impose vortex with vertical axis on the initial velocity profile
1133	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
1134	CALL init_rankine
1135	ENDIF
1136
1137	!
1138	!-- Impose temperature anomaly (advection test only)
1139	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
1140	CALL init_pt_anomaly
1141	ENDIF
1142
1143	!
1144	!-- If required, change the surface temperature at the start of the 3D run
1145	IF ( pt_surface_initial_change /= 0.0 ) THEN
1146	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
1147	ENDIF
1148
1149	!
1150	!-- If required, change the surface humidity/scalar at the start of the 3D
1151	!-- run
1152	IF ( ( humidity .OR. passive_scalar ) .AND. &
1153	q_surface_initial_change /= 0.0 ) THEN
1154	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
1155	ENDIF
1156	!
1157	!-- Initialize the random number generator (from numerical recipes)
1158	CALL random_function_ini
1159
1160	!
1161	!-- Initialize old and new time levels.
1162	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
1163	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1164
1165	IF ( humidity .OR. passive_scalar ) THEN
1166	tq_m = 0.0
1167	q_p = q
1168	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1169	precipitation ) THEN
1170	tqr_m = 0.0
1171	qr_p = qr
1172	tnr_m = 0.0
1173	nr_p = nr
1174	ENDIF
1175	ENDIF
1176
1177	IF ( ocean ) THEN
1178	tsa_m = 0.0
1179	sa_p = sa
1180	ENDIF
1181
1182
1183	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
1184	TRIM( initializing_actions ) == 'cyclic_fill' ) &
1185	THEN
1186	!
1187	!-- When reading data for cyclic fill of 3D prerun data files, read
1188	!-- some of the global variables from the restart file which are required
1189	!-- for initializing the inflow
1190	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1191
1192	DO i = 0, io_blocks-1
1193	IF ( i == io_group ) THEN
1194	CALL read_parts_of_var_list
1195	CALL close_file( 13 )
1196	ENDIF
1197	#if defined( __parallel )
1198	CALL MPI_BARRIER( comm2d, ierr )
1199	#endif
1200	ENDDO
1201
1202	ENDIF
1203
1204	!
1205	!-- Read binary data from restart file
1206	DO i = 0, io_blocks-1
1207	IF ( i == io_group ) THEN
1208	CALL read_3d_binary
1209	ENDIF
1210	#if defined( __parallel )
1211	CALL MPI_BARRIER( comm2d, ierr )
1212	#endif
1213	ENDDO
1214
1215	!
1216	!-- Initialization of the turbulence recycling method
1217	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1218	turbulent_inflow ) THEN
1219	!
1220	!-- First store the profiles to be used at the inflow.
1221	!-- These profiles are the (temporally) and horizontally averaged vertical
1222	!-- profiles from the prerun. Alternatively, prescribed profiles
1223	!-- for u,v-components can be used.
1224	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,5) )
1225
1226	IF ( use_prescribed_profile_data ) THEN
1227	mean_inflow_profiles(:,1) = u_init ! u
1228	mean_inflow_profiles(:,2) = v_init ! v
1229	ELSE
1230	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
1231	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
1232	ENDIF
1233	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
1234	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
1235
1236	!
1237	!-- If necessary, adjust the horizontal flow field to the prescribed
1238	!-- profiles
1239	IF ( use_prescribed_profile_data ) THEN
1240	DO i = nxlg, nxrg
1241	DO j = nysg, nyng
1242	DO k = nzb, nzt+1
1243	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
1244	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
1245	ENDDO
1246	ENDDO
1247	ENDDO
1248	ENDIF
1249
1250	!
1251	!-- Use these mean profiles at the inflow (provided that Dirichlet
1252	!-- conditions are used)
1253	IF ( inflow_l ) THEN
1254	DO j = nysg, nyng
1255	DO k = nzb, nzt+1
1256	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
1257	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
1258	w(k,j,nxlg:-1) = 0.0
1259	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
1260	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
1261	ENDDO
1262	ENDDO
1263	ENDIF
1264
1265	!
1266	!-- Calculate the damping factors to be used at the inflow. For a
1267	!-- turbulent inflow the turbulent fluctuations have to be limited
1268	!-- vertically because otherwise the turbulent inflow layer will grow
1269	!-- in time.
1270	IF ( inflow_damping_height == 9999999.9 ) THEN
1271	!
1272	!-- Default: use the inversion height calculated by the prerun; if
1273	!-- this is zero, inflow_damping_height must be explicitly
1274	!-- specified.
1275	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0 ) THEN
1276	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
1277	ELSE
1278	WRITE( message_string, * ) 'inflow_damping_height must be ',&
1279	'explicitly specified because&the inversion height ', &
1280	'calculated by the prerun is zero.'
1281	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
1282	ENDIF
1283
1284	ENDIF
1285
1286	IF ( inflow_damping_width == 9999999.9 ) THEN
1287	!
1288	!-- Default for the transition range: one tenth of the undamped
1289	!-- layer
1290	inflow_damping_width = 0.1 * inflow_damping_height
1291
1292	ENDIF
1293
1294	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
1295
1296	DO k = nzb, nzt+1
1297
1298	IF ( zu(k) <= inflow_damping_height ) THEN
1299	inflow_damping_factor(k) = 1.0
1300	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
1301	inflow_damping_factor(k) = 1.0 - &
1302	( zu(k) - inflow_damping_height ) / &
1303	inflow_damping_width
1304	ELSE
1305	inflow_damping_factor(k) = 0.0
1306	ENDIF
1307
1308	ENDDO
1309
1310	ENDIF
1311
1312	!
1313	!-- Inside buildings set velocities and TKE back to zero
1314	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1315	topography /= 'flat' ) THEN
1316	!
1317	!-- Inside buildings set velocities and TKE back to zero.
1318	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
1319	!-- maybe revise later.
1320	DO i = nxlg, nxrg
1321	DO j = nysg, nyng
1322	u (nzb:nzb_u_inner(j,i),j,i) = 0.0
1323	v (nzb:nzb_v_inner(j,i),j,i) = 0.0
1324	w (nzb:nzb_w_inner(j,i),j,i) = 0.0
1325	e (nzb:nzb_w_inner(j,i),j,i) = 0.0
1326	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0
1327	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0
1328	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1329	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1330	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1331	ENDDO
1332	ENDDO
1333
1334	ENDIF
1335
1336	!
1337	!-- Calculate initial temperature field and other constants used in case
1338	!-- of a sloping surface
1339	IF ( sloping_surface ) CALL init_slope
1340
1341	!
1342	!-- Initialize new time levels (only done in order to set boundary values
1343	!-- including ghost points)
1344	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1345	IF ( humidity .OR. passive_scalar ) THEN
1346	q_p = q
1347	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1348	precipitation ) THEN
1349	qr_p = qr
1350	nr_p = nr
1351	ENDIF
1352	ENDIF
1353	IF ( ocean ) sa_p = sa
1354
1355	!
1356	!-- Allthough tendency arrays are set in prognostic_equations, they have
1357	!-- have to be predefined here because they are used (but multiplied with 0)
1358	!-- there before they are set.
1359	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
1360	IF ( humidity .OR. passive_scalar ) THEN
1361	tq_m = 0.0
1362	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1363	precipitation ) THEN
1364	tqr_m = 0.0
1365	tnr_m = 0.0
1366	ENDIF
1367	ENDIF
1368	IF ( ocean ) tsa_m = 0.0
1369
1370	ELSE
1371	!
1372	!-- Actually this part of the programm should not be reached
1373	message_string = 'unknown initializing problem'
1374	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
1375	ENDIF
1376
1377
1378	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1379	!
1380	!-- Initialize old timelevels needed for radiation boundary conditions
1381	IF ( outflow_l ) THEN
1382	u_m_l(:,:,:) = u(:,:,1:2)
1383	v_m_l(:,:,:) = v(:,:,0:1)
1384	w_m_l(:,:,:) = w(:,:,0:1)
1385	ENDIF
1386	IF ( outflow_r ) THEN
1387	u_m_r(:,:,:) = u(:,:,nx-1:nx)
1388	v_m_r(:,:,:) = v(:,:,nx-1:nx)
1389	w_m_r(:,:,:) = w(:,:,nx-1:nx)
1390	ENDIF
1391	IF ( outflow_s ) THEN
1392	u_m_s(:,:,:) = u(:,0:1,:)
1393	v_m_s(:,:,:) = v(:,1:2,:)
1394	w_m_s(:,:,:) = w(:,0:1,:)
1395	ENDIF
1396	IF ( outflow_n ) THEN
1397	u_m_n(:,:,:) = u(:,ny-1:ny,:)
1398	v_m_n(:,:,:) = v(:,ny-1:ny,:)
1399	w_m_n(:,:,:) = w(:,ny-1:ny,:)
1400	ENDIF
1401
1402	ENDIF
1403
1404	!
1405	!-- Calculate the initial volume flow at the right and north boundary
1406	IF ( conserve_volume_flow ) THEN
1407
1408	IF ( use_prescribed_profile_data ) THEN
1409
1410	volume_flow_initial_l = 0.0
1411	volume_flow_area_l = 0.0
1412
1413	IF ( nxr == nx ) THEN
1414	DO j = nys, nyn
1415	DO k = nzb_2d(j,nx)+1, nzt
1416	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1417	u_init(k) * dzw(k)
1418	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1419	ENDDO
1420	ENDDO
1421	ENDIF
1422
1423	IF ( nyn == ny ) THEN
1424	DO i = nxl, nxr
1425	DO k = nzb_2d(ny,i)+1, nzt
1426	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1427	v_init(k) * dzw(k)
1428	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1429	ENDDO
1430	ENDDO
1431	ENDIF
1432
1433	#if defined( __parallel )
1434	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1435	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1436	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1437	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1438
1439	#else
1440	volume_flow_initial = volume_flow_initial_l
1441	volume_flow_area = volume_flow_area_l
1442	#endif
1443
1444	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1445
1446	volume_flow_initial_l = 0.0
1447	volume_flow_area_l = 0.0
1448
1449	IF ( nxr == nx ) THEN
1450	DO j = nys, nyn
1451	DO k = nzb_2d(j,nx)+1, nzt
1452	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1453	hom_sum(k,1,0) * dzw(k)
1454	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1455	ENDDO
1456	ENDDO
1457	ENDIF
1458
1459	IF ( nyn == ny ) THEN
1460	DO i = nxl, nxr
1461	DO k = nzb_2d(ny,i)+1, nzt
1462	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1463	hom_sum(k,2,0) * dzw(k)
1464	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1465	ENDDO
1466	ENDDO
1467	ENDIF
1468
1469	#if defined( __parallel )
1470	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1471	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1472	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1473	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1474
1475	#else
1476	volume_flow_initial = volume_flow_initial_l
1477	volume_flow_area = volume_flow_area_l
1478	#endif
1479
1480	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1481
1482	volume_flow_initial_l = 0.0
1483	volume_flow_area_l = 0.0
1484
1485	IF ( nxr == nx ) THEN
1486	DO j = nys, nyn
1487	DO k = nzb_2d(j,nx)+1, nzt
1488	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1489	u(k,j,nx) * dzw(k)
1490	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1491	ENDDO
1492	ENDDO
1493	ENDIF
1494
1495	IF ( nyn == ny ) THEN
1496	DO i = nxl, nxr
1497	DO k = nzb_2d(ny,i)+1, nzt
1498	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1499	v(k,ny,i) * dzw(k)
1500	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1501	ENDDO
1502	ENDDO
1503	ENDIF
1504
1505	#if defined( __parallel )
1506	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1507	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1508	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1509	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1510
1511	#else
1512	volume_flow_initial = volume_flow_initial_l
1513	volume_flow_area = volume_flow_area_l
1514	#endif
1515
1516	ENDIF
1517
1518	!
1519	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
1520	!-- from u\|v_bulk instead
1521	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
1522	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
1523	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
1524	ENDIF
1525
1526	ENDIF
1527
1528	!
1529	!-- Initialize quantities for special advections schemes
1530	CALL init_advec
1531
1532	!
1533	!-- Impose random perturbation on the horizontal velocity field and then
1534	!-- remove the divergences from the velocity field at the initial stage
1535	IF ( create_disturbances .AND. &
1536	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1537	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1538
1539	CALL disturb_field( nzb_u_inner, tend, u )
1540	CALL disturb_field( nzb_v_inner, tend, v )
1541	n_sor = nsor_ini
1542	!$acc data copyin( d, ddzu, ddzw, nzb_s_inner, nzb_u_inner ) &
1543	!$acc copyin( nzb_v_inner, nzb_w_inner, p, rflags_s_inner, tend ) &
1544	!$acc copyin( weight_pres, weight_substep ) &
1545	!$acc copy( tri, tric, u, v, w )
1546	CALL pres
1547	!$acc end data
1548	n_sor = nsor
1549	ENDIF
1550
1551	!
1552	!-- Initialization of the leaf area density
1553	IF ( plant_canopy ) THEN
1554
1555	SELECT CASE ( TRIM( canopy_mode ) )
1556
1557	CASE( 'block' )
1558
1559	DO i = nxlg, nxrg
1560	DO j = nysg, nyng
1561	lad_s(:,j,i) = lad(:)
1562	cdc(:,j,i) = drag_coefficient
1563	IF ( passive_scalar ) THEN
1564	sls(:,j,i) = leaf_surface_concentration
1565	sec(:,j,i) = scalar_exchange_coefficient
1566	ENDIF
1567	ENDDO
1568	ENDDO
1569
1570	CASE DEFAULT
1571
1572	!
1573	!-- The DEFAULT case is reached either if the parameter
1574	!-- canopy mode contains a wrong character string or if the
1575	!-- user has coded a special case in the user interface.
1576	!-- There, the subroutine user_init_plant_canopy checks
1577	!-- which of these two conditions applies.
1578	CALL user_init_plant_canopy
1579
1580	END SELECT
1581
1582	CALL exchange_horiz( lad_s, nbgp )
1583	CALL exchange_horiz( cdc, nbgp )
1584
1585	IF ( passive_scalar ) THEN
1586	CALL exchange_horiz( sls, nbgp )
1587	CALL exchange_horiz( sec, nbgp )
1588	ENDIF
1589
1590	!
1591	!-- Sharp boundaries of the plant canopy in horizontal directions
1592	!-- In vertical direction the interpolation is retained, as the leaf
1593	!-- area density is initialised by prescribing a vertical profile
1594	!-- consisting of piecewise linear segments. The upper boundary
1595	!-- of the plant canopy is now defined by lad_w(pch_index,:,:) = 0.0.
1596
1597	DO i = nxl, nxr
1598	DO j = nys, nyn
1599	DO k = nzb, nzt+1
1600	IF ( lad_s(k,j,i) > 0.0 ) THEN
1601	lad_u(k,j,i) = lad_s(k,j,i)
1602	lad_u(k,j,i+1) = lad_s(k,j,i)
1603	lad_v(k,j,i) = lad_s(k,j,i)
1604	lad_v(k,j+1,i) = lad_s(k,j,i)
1605	ENDIF
1606	ENDDO
1607	DO k = nzb, nzt
1608	lad_w(k,j,i) = 0.5 * ( lad_s(k+1,j,i) + lad_s(k,j,i) )
1609	ENDDO
1610	ENDDO
1611	ENDDO
1612
1613	lad_w(pch_index,:,:) = 0.0
1614	lad_w(nzt+1,:,:) = lad_w(nzt,:,:)
1615
1616	CALL exchange_horiz( lad_u, nbgp )
1617	CALL exchange_horiz( lad_v, nbgp )
1618	CALL exchange_horiz( lad_w, nbgp )
1619
1620	!
1621	!-- Initialisation of the canopy heat source distribution
1622	IF ( cthf /= 0.0 ) THEN
1623	!
1624	!-- Piecewise evaluation of the leaf area index by
1625	!-- integration of the leaf area density
1626	lai(:,:,:) = 0.0
1627	DO i = nxlg, nxrg
1628	DO j = nysg, nyng
1629	DO k = pch_index-1, 0, -1
1630	lai(k,j,i) = lai(k+1,j,i) + &
1631	( 0.5 * ( lad_w(k+1,j,i) + &
1632	lad_s(k+1,j,i) ) * &
1633	( zw(k+1) - zu(k+1) ) ) + &
1634	( 0.5 * ( lad_w(k,j,i) + &
1635	lad_s(k+1,j,i) ) * &
1636	( zu(k+1) - zw(k) ) )
1637	ENDDO
1638	ENDDO
1639	ENDDO
1640
1641	!
1642	!-- Evaluation of the upward kinematic vertical heat flux within the
1643	!-- canopy
1644	DO i = nxlg, nxrg
1645	DO j = nysg, nyng
1646	DO k = 0, pch_index
1647	canopy_heat_flux(k,j,i) = cthf * &
1648	exp( -0.6 * lai(k,j,i) )
1649	ENDDO
1650	ENDDO
1651	ENDDO
1652
1653	!
1654	!-- The near surface heat flux is derived from the heat flux
1655	!-- distribution within the canopy
1656	shf(:,:) = canopy_heat_flux(0,:,:)
1657
1658	ENDIF
1659
1660	ENDIF
1661
1662	!
1663	!-- If required, initialize dvrp-software
1664	IF ( dt_dvrp /= 9999999.9 ) CALL init_dvrp
1665
1666	IF ( ocean ) THEN
1667	!
1668	!-- Initialize quantities needed for the ocean model
1669	CALL init_ocean
1670
1671	ELSE
1672	!
1673	!-- Initialize quantities for handling cloud physics
1674	!-- This routine must be called before lpm_init, because
1675	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
1676	!-- lpm_init) is not defined.
1677	CALL init_cloud_physics
1678	ENDIF
1679
1680	!
1681	!-- If required, initialize particles
1682	IF ( particle_advection ) CALL lpm_init
1683
1684	!
1685	!-- Initialize the ws-scheme.
1686	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
1687
1688	!
1689	!-- Setting weighting factors for calculation of perturbation pressure
1690	!-- and turbulent quantities from the RK substeps
1691	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
1692
1693	weight_substep(1) = 1./6.
1694	weight_substep(2) = 3./10.
1695	weight_substep(3) = 8./15.
1696
1697	weight_pres(1) = 1./3.
1698	weight_pres(2) = 5./12.
1699	weight_pres(3) = 1./4.
1700
1701	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
1702
1703	weight_substep(1) = 1./2.
1704	weight_substep(2) = 1./2.
1705
1706	weight_pres(1) = 1./2.
1707	weight_pres(2) = 1./2.
1708
1709	ELSE ! for Euler-method
1710
1711	weight_substep(1) = 1.0
1712	weight_pres(1) = 1.0
1713
1714	ENDIF
1715
1716	!
1717	!-- Initialize Rayleigh damping factors
1718	rdf = 0.0
1719	rdf_sc = 0.0
1720	IF ( rayleigh_damping_factor /= 0.0 ) THEN
1721	IF ( .NOT. ocean ) THEN
1722	DO k = nzb+1, nzt
1723	IF ( zu(k) >= rayleigh_damping_height ) THEN
1724	rdf(k) = rayleigh_damping_factor * &
1725	( SIN( pi * 0.5 * ( zu(k) - rayleigh_damping_height ) &
1726	/ ( zu(nzt) - rayleigh_damping_height ) )&
1727	)**2
1728	ENDIF
1729	ENDDO
1730	ELSE
1731	DO k = nzt, nzb+1, -1
1732	IF ( zu(k) <= rayleigh_damping_height ) THEN
1733	rdf(k) = rayleigh_damping_factor * &
1734	( SIN( pi * 0.5 * ( rayleigh_damping_height - zu(k) ) &
1735	/ ( rayleigh_damping_height - zu(nzb+1)))&
1736	)**2
1737	ENDIF
1738	ENDDO
1739	ENDIF
1740	ENDIF
1741	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
1742
1743	!
1744	!-- Initialize the starting level and the vertical smoothing factor used for
1745	!-- the external pressure gradient
1746	dp_smooth_factor = 1.0
1747	IF ( dp_external ) THEN
1748	!
1749	!-- Set the starting level dp_level_ind_b only if it has not been set before
1750	!-- (e.g. in init_grid).
1751	IF ( dp_level_ind_b == 0 ) THEN
1752	ind_array = MINLOC( ABS( dp_level_b - zu ) )
1753	dp_level_ind_b = ind_array(1) - 1 + nzb
1754	! MINLOC uses lower array bound 1
1755	ENDIF
1756	IF ( dp_smooth ) THEN
1757	dp_smooth_factor(:dp_level_ind_b) = 0.0
1758	DO k = dp_level_ind_b+1, nzt
1759	dp_smooth_factor(k) = 0.5 * ( 1.0 + SIN( pi * &
1760	( REAL( k - dp_level_ind_b ) / &
1761	REAL( nzt - dp_level_ind_b ) - 0.5 ) ) )
1762	ENDDO
1763	ENDIF
1764	ENDIF
1765
1766	!
1767	!-- Initialize damping zone for the potential temperature in case of
1768	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
1769	!-- at the inflow boundary and decreases to zero at pt_damping_width.
1770	ptdf_x = 0.0
1771	ptdf_y = 0.0
1772	IF ( bc_lr_dirrad ) THEN
1773	DO i = nxl, nxr
1774	IF ( ( i * dx ) < pt_damping_width ) THEN
1775	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5 * &
1776	REAL( pt_damping_width - i * dx ) / ( &
1777	REAL( pt_damping_width ) ) ) )**2
1778	ENDIF
1779	ENDDO
1780	ELSEIF ( bc_lr_raddir ) THEN
1781	DO i = nxl, nxr
1782	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
1783	ptdf_x(i) = pt_damping_factor * &
1784	SIN( pi * 0.5 * ( ( i - nx ) * dx + pt_damping_width ) / &
1785	REAL( pt_damping_width ) )**2
1786	ENDIF
1787	ENDDO
1788	ELSEIF ( bc_ns_dirrad ) THEN
1789	DO j = nys, nyn
1790	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
1791	ptdf_y(j) = pt_damping_factor * &
1792	SIN( pi * 0.5 * ( ( j - ny ) * dy + pt_damping_width ) / &
1793	REAL( pt_damping_width ) )**2
1794	ENDIF
1795	ENDDO
1796	ELSEIF ( bc_ns_raddir ) THEN
1797	DO j = nys, nyn
1798	IF ( ( j * dy ) < pt_damping_width ) THEN
1799	ptdf_y(j) = pt_damping_factor * &
1800	SIN( pi * 0.5 * ( pt_damping_width - j * dy ) / &
1801	REAL( pt_damping_width ) )**2
1802	ENDIF
1803	ENDDO
1804	ENDIF
1805
1806	!
1807	!-- Initialize local summation arrays for routine flow_statistics.
1808	!-- This is necessary because they may not yet have been initialized when they
1809	!-- are called from flow_statistics (or - depending on the chosen model run -
1810	!-- are never initialized)
1811	sums_divnew_l = 0.0
1812	sums_divold_l = 0.0
1813	sums_l_l = 0.0
1814	sums_up_fraction_l = 0.0
1815	sums_wsts_bc_l = 0.0
1816
1817	!
1818	!-- Pre-set masks for regional statistics. Default is the total model domain.
1819	!-- Ghost points are excluded because counting values at the ghost boundaries
1820	!-- would bias the statistics
1821	rmask = 1.0
1822	rmask(:,nxlg:nxl-1,:) = 0.0; rmask(:,nxr+1:nxrg,:) = 0.0
1823	rmask(nysg:nys-1,:,:) = 0.0; rmask(nyn+1:nyng,:,:) = 0.0
1824
1825	!
1826	!-- User-defined initializing actions. Check afterwards, if maximum number
1827	!-- of allowed timeseries is exceeded
1828	CALL user_init
1829
1830	IF ( dots_num > dots_max ) THEN
1831	WRITE( message_string, * ) 'number of time series quantities exceeds', &
1832	' its maximum of dots_max = ', dots_max, &
1833	' &Please increase dots_max in modules.f90.'
1834	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
1835	ENDIF
1836
1837	!
1838	!-- Input binary data file is not needed anymore. This line must be placed
1839	!-- after call of user_init!
1840	CALL close_file( 13 )
1841
1842	!
1843	!-- Compute total sum of active mask grid points
1844	!-- ngp_2dh: number of grid points of a horizontal cross section through the
1845	!-- total domain
1846	!-- ngp_3d: number of grid points of the total domain
1847	ngp_2dh_outer_l = 0
1848	ngp_2dh_outer = 0
1849	ngp_2dh_s_inner_l = 0
1850	ngp_2dh_s_inner = 0
1851	ngp_2dh_l = 0
1852	ngp_2dh = 0
1853	ngp_3d_inner_l = 0.0
1854	ngp_3d_inner = 0
1855	ngp_3d = 0
1856	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
1857
1858	DO sr = 0, statistic_regions
1859	DO i = nxl, nxr
1860	DO j = nys, nyn
1861	IF ( rmask(j,i,sr) == 1.0 ) THEN
1862	!
1863	!-- All xy-grid points
1864	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
1865	!
1866	!-- xy-grid points above topography
1867	DO k = nzb_s_outer(j,i), nz + 1
1868	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
1869	ENDDO
1870	DO k = nzb_s_inner(j,i), nz + 1
1871	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
1872	ENDDO
1873	!
1874	!-- All grid points of the total domain above topography
1875	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
1876	( nz - nzb_s_inner(j,i) + 2 )
1877	ENDIF
1878	ENDDO
1879	ENDDO
1880	ENDDO
1881
1882	sr = statistic_regions + 1
1883	#if defined( __parallel )
1884	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1885	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
1886	comm2d, ierr )
1887	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1888	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
1889	MPI_INTEGER, MPI_SUM, comm2d, ierr )
1890	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1891	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
1892	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
1893	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1894	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
1895	MPI_SUM, comm2d, ierr )
1896	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
1897	#else
1898	ngp_2dh = ngp_2dh_l
1899	ngp_2dh_outer = ngp_2dh_outer_l
1900	ngp_2dh_s_inner = ngp_2dh_s_inner_l
1901	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
1902	#endif
1903
1904	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
1905	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
1906
1907	!
1908	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
1909	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
1910	!-- the respective subdomain lie below the surface topography
1911	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
1912	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
1913	ngp_3d_inner(:) )
1914	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
1915
1916	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, ngp_3d_inner_tmp )
1917
1918
1919	END SUBROUTINE init_3d_model

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