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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1315

Last change on this file since 1315 was 1310, checked in by raasch, 11 years ago
update of GPL copyright
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	!
26	!
27	! Former revisions:
28	! -----------------
29	! $Id: init_3d_model.f90 1310 2014-03-14 08:01:56Z suehring $
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	IF ( large_scale_subsidence ) THEN
550	ALLOCATE ( w_subs(nzb:nzt+1) )
551	w_subs = 0.0
552	ENDIF
553
554	!
555	!-- 3D-arrays for the leaf area density and the canopy drag coefficient
556	IF ( plant_canopy ) THEN
557	ALLOCATE ( lad_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
558	lad_u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
559	lad_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
560	lad_w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
561	cdc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
562
563	IF ( passive_scalar ) THEN
564	ALLOCATE ( sls(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
565	sec(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
566	ENDIF
567
568	IF ( cthf /= 0.0 ) THEN
569	ALLOCATE ( lai(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
570	canopy_heat_flux(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
571	ENDIF
572
573	ENDIF
574
575	!
576	!-- 4D-array for storing the Rif-values at vertical walls
577	IF ( topography /= 'flat' ) THEN
578	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
579	rif_wall = 0.0
580	ENDIF
581
582	!
583	!-- Arrays to store velocity data from t-dt and the phase speeds which
584	!-- are needed for radiation boundary conditions
585	IF ( outflow_l ) THEN
586	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
587	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
588	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
589	ENDIF
590	IF ( outflow_r ) THEN
591	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
592	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
593	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
594	ENDIF
595	IF ( outflow_l .OR. outflow_r ) THEN
596	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
597	c_w(nzb:nzt+1,nysg:nyng) )
598	ENDIF
599	IF ( outflow_s ) THEN
600	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
601	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
602	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
603	ENDIF
604	IF ( outflow_n ) THEN
605	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
606	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
607	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
608	ENDIF
609	IF ( outflow_s .OR. outflow_n ) THEN
610	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
611	c_w(nzb:nzt+1,nxlg:nxrg) )
612	ENDIF
613	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
614	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
615	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
616	ENDIF
617
618
619	#if ! defined( __nopointer )
620	!
621	!-- Initial assignment of the pointers
622	e => e_1; e_p => e_2; te_m => e_3
623	IF ( .NOT. neutral ) THEN
624	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
625	ELSE
626	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
627	ENDIF
628	u => u_1; u_p => u_2; tu_m => u_3
629	v => v_1; v_p => v_2; tv_m => v_3
630	w => w_1; w_p => w_2; tw_m => w_3
631
632	IF ( humidity .OR. passive_scalar ) THEN
633	q => q_1; q_p => q_2; tq_m => q_3
634	IF ( humidity ) THEN
635	vpt => vpt_1
636	IF ( cloud_physics ) THEN
637	ql => ql_1
638	IF ( icloud_scheme == 0 ) THEN
639	qc => qc_1
640	IF ( precipitation ) THEN
641	qr => qr_1; qr_p => qr_2; tqr_m => qr_3
642	nr => nr_1; nr_p => nr_2; tnr_m => nr_3
643	ENDIF
644	ENDIF
645	ENDIF
646	ENDIF
647	IF ( cloud_droplets ) THEN
648	ql => ql_1
649	ql_c => ql_2
650	ENDIF
651	ENDIF
652
653	IF ( ocean ) THEN
654	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
655	ENDIF
656	#endif
657
658	!
659	!-- Allocate arrays containing the RK coefficient for calculation of
660	!-- perturbation pressure and turbulent fluxes. At this point values are
661	!-- set for pressure calculation during initialization (where no timestep
662	!-- is done). Further below the values needed within the timestep scheme
663	!-- will be set.
664	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
665	weight_pres(1:intermediate_timestep_count_max) )
666	weight_substep = 1.0
667	weight_pres = 1.0
668	intermediate_timestep_count = 1 ! needed when simulated_time = 0.0
669
670	!
671	!-- Initialize model variables
672	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
673	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
674	!
675	!-- First model run of a possible job queue.
676	!-- Initial profiles of the variables must be computes.
677	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
678	!
679	!-- Use solutions of the 1D model as initial profiles,
680	!-- start 1D model
681	CALL init_1d_model
682	!
683	!-- Transfer initial profiles to the arrays of the 3D model
684	DO i = nxlg, nxrg
685	DO j = nysg, nyng
686	e(:,j,i) = e1d
687	kh(:,j,i) = kh1d
688	km(:,j,i) = km1d
689	pt(:,j,i) = pt_init
690	u(:,j,i) = u1d
691	v(:,j,i) = v1d
692	ENDDO
693	ENDDO
694
695	IF ( humidity .OR. passive_scalar ) THEN
696	DO i = nxlg, nxrg
697	DO j = nysg, nyng
698	q(:,j,i) = q_init
699	ENDDO
700	ENDDO
701	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
702	precipitation ) THEN
703	DO i = nxlg, nxrg
704	DO j = nysg, nyng
705	qr(:,j,i) = 0.0
706	nr(:,j,i) = 0.0
707	ENDDO
708	ENDDO
709	!
710	!-- Initialze nc_1d with default value
711	nc_1d(:) = nc_const
712
713	ENDIF
714	ENDIF
715
716	IF ( .NOT. constant_diffusion ) THEN
717	DO i = nxlg, nxrg
718	DO j = nysg, nyng
719	e(:,j,i) = e1d
720	ENDDO
721	ENDDO
722	!
723	!-- Store initial profiles for output purposes etc.
724	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
725
726	IF ( prandtl_layer ) THEN
727	rif = rif1d(nzb+1)
728	ts = 0.0 ! could actually be computed more accurately in the
729	! 1D model. Update when opportunity arises.
730	us = us1d
731	usws = usws1d
732	vsws = vsws1d
733	ELSE
734	ts = 0.0 ! must be set, because used in
735	rif = 0.0 ! flowste
736	us = 0.0
737	usws = 0.0
738	vsws = 0.0
739	ENDIF
740
741	ELSE
742	e = 0.0 ! must be set, because used in
743	rif = 0.0 ! flowste
744	ts = 0.0
745	us = 0.0
746	usws = 0.0
747	vsws = 0.0
748	ENDIF
749	uswst = top_momentumflux_u
750	vswst = top_momentumflux_v
751
752	!
753	!-- In every case qs = 0.0 (see also pt)
754	!-- This could actually be computed more accurately in the 1D model.
755	!-- Update when opportunity arises!
756	IF ( humidity .OR. passive_scalar ) THEN
757	qs = 0.0
758	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
759	precipitation ) THEN
760	qrs = 0.0
761	nrs = 0.0
762	ENDIF
763	ENDIF
764
765	!
766	!-- inside buildings set velocities back to zero
767	IF ( topography /= 'flat' ) THEN
768	DO i = nxl-1, nxr+1
769	DO j = nys-1, nyn+1
770	u(nzb:nzb_u_inner(j,i),j,i) = 0.0
771	v(nzb:nzb_v_inner(j,i),j,i) = 0.0
772	ENDDO
773	ENDDO
774
775	!
776	!-- WARNING: The extra boundary conditions set after running the
777	!-- ------- 1D model impose an error on the divergence one layer
778	!-- below the topography; need to correct later
779	!-- ATTENTION: Provisional correction for Piacsek & Williams
780	!-- --------- advection scheme: keep u and v zero one layer below
781	!-- the topography.
782	IF ( ibc_uv_b == 1 ) THEN
783	!
784	!-- Neumann condition
785	DO i = nxl-1, nxr+1
786	DO j = nys-1, nyn+1
787	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
788	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
789	ENDDO
790	ENDDO
791
792	ENDIF
793
794	ENDIF
795
796	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
797	THEN
798
799	!
800	!-- Overwrite initial profiles in case of nudging
801	IF ( nudging ) THEN
802	pt_init = ptnudge(:,1)
803	u_init = unudge(:,1)
804	v_init = vnudge(:,1)
805	IF ( humidity .OR. passive_scalar ) THEN
806	q_init = qnudge(:,1)
807	ENDIF
808
809	WRITE( message_string, * ) 'Initial profiles of u, v and ', &
810	'scalars from NUDGING_DATA are used.'
811	CALL message( 'init_3d_model', 'PA0370', 0, 0, 0, 6, 0 )
812	ENDIF
813
814	!
815	!-- Use constructed initial profiles (velocity constant with height,
816	!-- temperature profile with constant gradient)
817	DO i = nxlg, nxrg
818	DO j = nysg, nyng
819	pt(:,j,i) = pt_init
820	u(:,j,i) = u_init
821	v(:,j,i) = v_init
822	ENDDO
823	ENDDO
824
825	!
826	!-- Set initial horizontal velocities at the lowest computational grid
827	!-- levels to zero in order to avoid too small time steps caused by the
828	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
829	!-- in the limiting formula!). The original values are stored to be later
830	!-- used for volume flow control.
831	DO i = nxlg, nxrg
832	DO j = nysg, nyng
833	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0
834	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0
835	ENDDO
836	ENDDO
837
838	IF ( humidity .OR. passive_scalar ) THEN
839	DO i = nxlg, nxrg
840	DO j = nysg, nyng
841	q(:,j,i) = q_init
842	ENDDO
843	ENDDO
844	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
845	!
846	!-- Initialze nc_1d with default value
847	nc_1d(:) = nc_const
848
849	IF ( precipitation ) THEN
850	DO i = nxlg, nxrg
851	DO j = nysg, nyng
852	qr(:,j,i) = 0.0
853	nr(:,j,i) = 0.0
854	ENDDO
855	ENDDO
856	ENDIF
857
858	ENDIF
859	ENDIF
860
861	IF ( ocean ) THEN
862	DO i = nxlg, nxrg
863	DO j = nysg, nyng
864	sa(:,j,i) = sa_init
865	ENDDO
866	ENDDO
867	ENDIF
868
869	IF ( constant_diffusion ) THEN
870	km = km_constant
871	kh = km / prandtl_number
872	e = 0.0
873	ELSEIF ( e_init > 0.0 ) THEN
874	DO k = nzb+1, nzt
875	km(k,:,:) = 0.1 * l_grid(k) * SQRT( e_init )
876	ENDDO
877	km(nzb,:,:) = km(nzb+1,:,:)
878	km(nzt+1,:,:) = km(nzt,:,:)
879	kh = km / prandtl_number
880	e = e_init
881	ELSE
882	IF ( .NOT. ocean ) THEN
883	kh = 0.01 ! there must exist an initial diffusion, because
884	km = 0.01 ! otherwise no TKE would be produced by the
885	! production terms, as long as not yet
886	! e = (u/cm)*2 at k=nzb+1
887	ELSE
888	kh = 0.00001
889	km = 0.00001
890	ENDIF
891	e = 0.0
892	ENDIF
893	rif = 0.0
894	ts = 0.0
895	us = 0.0
896	usws = 0.0
897	uswst = top_momentumflux_u
898	vsws = 0.0
899	vswst = top_momentumflux_v
900	IF ( humidity .OR. passive_scalar ) qs = 0.0
901
902	!
903	!-- Compute initial temperature field and other constants used in case
904	!-- of a sloping surface
905	IF ( sloping_surface ) CALL init_slope
906
907	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
908	THEN
909	!
910	!-- Initialization will completely be done by the user
911	CALL user_init_3d_model
912
913	ENDIF
914	!
915	!-- Bottom boundary
916	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
917	u(nzb,:,:) = 0.0
918	v(nzb,:,:) = 0.0
919	ENDIF
920
921	!
922	!-- Apply channel flow boundary condition
923	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
924	u(nzt+1,:,:) = 0.0
925	v(nzt+1,:,:) = 0.0
926	ENDIF
927
928	!
929	!-- Calculate virtual potential temperature
930	IF ( humidity ) vpt = pt * ( 1.0 + 0.61 * q )
931
932	!
933	!-- Store initial profiles for output purposes etc.
934	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
935	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
936	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
937	hom(nzb,1,5,:) = 0.0
938	hom(nzb,1,6,:) = 0.0
939	ENDIF
940	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
941	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
942	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
943
944	IF ( ocean ) THEN
945	!
946	!-- Store initial salinity profile
947	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
948	ENDIF
949
950	IF ( humidity ) THEN
951	!
952	!-- Store initial profile of total water content, virtual potential
953	!-- temperature
954	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
955	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
956	IF ( cloud_physics .OR. cloud_droplets ) THEN
957	!
958	!-- Store initial profile of specific humidity and potential
959	!-- temperature
960	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
961	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
962	ENDIF
963	ENDIF
964
965	IF ( passive_scalar ) THEN
966	!
967	!-- Store initial scalar profile
968	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
969	ENDIF
970
971	!
972	!-- Initialize fluxes at bottom surface
973	IF ( use_surface_fluxes ) THEN
974
975	IF ( constant_heatflux ) THEN
976	!
977	!-- Heat flux is prescribed
978	IF ( random_heatflux ) THEN
979	CALL disturb_heatflux
980	ELSE
981	shf = surface_heatflux
982	!
983	!-- Initialize shf with data from external file LSF_DATA
984	IF ( large_scale_forcing .AND. lsf_surf ) THEN
985	CALL ls_forcing_surf ( simulated_time )
986	ENDIF
987
988	!
989	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
990	IF ( TRIM( topography ) /= 'flat' ) THEN
991	DO i = nxlg, nxrg
992	DO j = nysg, nyng
993	IF ( nzb_s_inner(j,i) /= 0 ) THEN
994	shf(j,i) = wall_heatflux(0)
995	ENDIF
996	ENDDO
997	ENDDO
998	ENDIF
999	ENDIF
1000	ENDIF
1001
1002	!
1003	!-- Determine the near-surface water flux
1004	IF ( humidity .OR. passive_scalar ) THEN
1005	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1006	precipitation ) THEN
1007	qrsws = 0.0
1008	nrsws = 0.0
1009	ENDIF
1010	IF ( constant_waterflux ) THEN
1011	qsws = surface_waterflux
1012	!
1013	!-- Over topography surface_waterflux is replaced by
1014	!-- wall_humidityflux(0)
1015	IF ( TRIM( topography ) /= 'flat' ) THEN
1016	wall_qflux = wall_humidityflux
1017	DO i = nxlg, nxrg
1018	DO j = nysg, nyng
1019	IF ( nzb_s_inner(j,i) /= 0 ) THEN
1020	qsws(j,i) = wall_qflux(0)
1021	ENDIF
1022	ENDDO
1023	ENDDO
1024	ENDIF
1025	ENDIF
1026	ENDIF
1027
1028	ENDIF
1029
1030	!
1031	!-- Initialize fluxes at top surface
1032	!-- Currently, only the heatflux and salinity flux can be prescribed.
1033	!-- The latent flux is zero in this case!
1034	IF ( use_top_fluxes ) THEN
1035
1036	IF ( constant_top_heatflux ) THEN
1037	!
1038	!-- Heat flux is prescribed
1039	tswst = top_heatflux
1040
1041	IF ( humidity .OR. passive_scalar ) THEN
1042	qswst = 0.0
1043	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1044	precipitation ) THEN
1045	nrswst = 0.0
1046	qrswst = 0.0
1047	ENDIF
1048	ENDIF
1049
1050	IF ( ocean ) THEN
1051	saswsb = bottom_salinityflux
1052	saswst = top_salinityflux
1053	ENDIF
1054	ENDIF
1055
1056	!
1057	!-- Initialization in case of a coupled model run
1058	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
1059	tswst = 0.0
1060	ENDIF
1061
1062	ENDIF
1063
1064	!
1065	!-- Initialize Prandtl layer quantities
1066	IF ( prandtl_layer ) THEN
1067
1068	z0 = roughness_length
1069	z0h = z0h_factor * z0
1070
1071	IF ( .NOT. constant_heatflux ) THEN
1072	!
1073	!-- Surface temperature is prescribed. Here the heat flux cannot be
1074	!-- simply estimated, because therefore rif, u* and theta* would have
1075	!-- to be computed by iteration. This is why the heat flux is assumed
1076	!-- to be zero before the first time step. It approaches its correct
1077	!-- value in the course of the first few time steps.
1078	shf = 0.0
1079	ENDIF
1080
1081	IF ( humidity .OR. passive_scalar ) THEN
1082	IF ( .NOT. constant_waterflux ) qsws = 0.0
1083	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1084	precipitation ) THEN
1085	qrsws = 0.0
1086	nrsws = 0.0
1087	ENDIF
1088	ENDIF
1089
1090	ENDIF
1091
1092	!
1093	!-- Set the reference state to be used in the buoyancy terms (for ocean runs
1094	!-- the reference state will be set (overwritten) in init_ocean)
1095	IF ( use_single_reference_value ) THEN
1096	IF ( .NOT. humidity ) THEN
1097	ref_state(:) = pt_reference
1098	ELSE
1099	ref_state(:) = vpt_reference
1100	ENDIF
1101	ELSE
1102	IF ( .NOT. humidity ) THEN
1103	ref_state(:) = pt_init(:)
1104	ELSE
1105	ref_state(:) = vpt(:,nys,nxl)
1106	ENDIF
1107	ENDIF
1108
1109	!
1110	!-- For the moment, vertical velocity is zero
1111	w = 0.0
1112
1113	!
1114	!-- Initialize array sums (must be defined in first call of pres)
1115	sums = 0.0
1116
1117	!
1118	!-- In case of iterative solvers, p must get an initial value
1119	IF ( psolver == 'multigrid' .OR. psolver == 'sor' ) p = 0.0
1120
1121	!
1122	!-- Treating cloud physics, liquid water content and precipitation amount
1123	!-- are zero at beginning of the simulation
1124	IF ( cloud_physics ) THEN
1125	ql = 0.0
1126	IF ( precipitation ) precipitation_amount = 0.0
1127	IF ( icloud_scheme == 0 ) THEN
1128	qc = 0.0
1129	nc_1d = nc_const
1130	ENDIF
1131	ENDIF
1132	!
1133	!-- Impose vortex with vertical axis on the initial velocity profile
1134	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
1135	CALL init_rankine
1136	ENDIF
1137
1138	!
1139	!-- Impose temperature anomaly (advection test only)
1140	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
1141	CALL init_pt_anomaly
1142	ENDIF
1143
1144	!
1145	!-- If required, change the surface temperature at the start of the 3D run
1146	IF ( pt_surface_initial_change /= 0.0 ) THEN
1147	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
1148	ENDIF
1149
1150	!
1151	!-- If required, change the surface humidity/scalar at the start of the 3D
1152	!-- run
1153	IF ( ( humidity .OR. passive_scalar ) .AND. &
1154	q_surface_initial_change /= 0.0 ) THEN
1155	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
1156	ENDIF
1157	!
1158	!-- Initialize the random number generator (from numerical recipes)
1159	CALL random_function_ini
1160
1161	!
1162	!-- Initialize old and new time levels.
1163	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
1164	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1165
1166	IF ( humidity .OR. passive_scalar ) THEN
1167	tq_m = 0.0
1168	q_p = q
1169	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1170	precipitation ) THEN
1171	tqr_m = 0.0
1172	qr_p = qr
1173	tnr_m = 0.0
1174	nr_p = nr
1175	ENDIF
1176	ENDIF
1177
1178	IF ( ocean ) THEN
1179	tsa_m = 0.0
1180	sa_p = sa
1181	ENDIF
1182
1183
1184	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
1185	TRIM( initializing_actions ) == 'cyclic_fill' ) &
1186	THEN
1187	!
1188	!-- When reading data for cyclic fill of 3D prerun data files, read
1189	!-- some of the global variables from the restart file which are required
1190	!-- for initializing the inflow
1191	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1192
1193	DO i = 0, io_blocks-1
1194	IF ( i == io_group ) THEN
1195	CALL read_parts_of_var_list
1196	CALL close_file( 13 )
1197	ENDIF
1198	#if defined( __parallel )
1199	CALL MPI_BARRIER( comm2d, ierr )
1200	#endif
1201	ENDDO
1202
1203	ENDIF
1204
1205	!
1206	!-- Read binary data from restart file
1207	DO i = 0, io_blocks-1
1208	IF ( i == io_group ) THEN
1209	CALL read_3d_binary
1210	ENDIF
1211	#if defined( __parallel )
1212	CALL MPI_BARRIER( comm2d, ierr )
1213	#endif
1214	ENDDO
1215
1216	!
1217	!-- Initialization of the turbulence recycling method
1218	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1219	turbulent_inflow ) THEN
1220	!
1221	!-- First store the profiles to be used at the inflow.
1222	!-- These profiles are the (temporally) and horizontally averaged vertical
1223	!-- profiles from the prerun. Alternatively, prescribed profiles
1224	!-- for u,v-components can be used.
1225	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,5) )
1226
1227	IF ( use_prescribed_profile_data ) THEN
1228	mean_inflow_profiles(:,1) = u_init ! u
1229	mean_inflow_profiles(:,2) = v_init ! v
1230	ELSE
1231	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
1232	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
1233	ENDIF
1234	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
1235	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
1236
1237	!
1238	!-- If necessary, adjust the horizontal flow field to the prescribed
1239	!-- profiles
1240	IF ( use_prescribed_profile_data ) THEN
1241	DO i = nxlg, nxrg
1242	DO j = nysg, nyng
1243	DO k = nzb, nzt+1
1244	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
1245	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
1246	ENDDO
1247	ENDDO
1248	ENDDO
1249	ENDIF
1250
1251	!
1252	!-- Use these mean profiles at the inflow (provided that Dirichlet
1253	!-- conditions are used)
1254	IF ( inflow_l ) THEN
1255	DO j = nysg, nyng
1256	DO k = nzb, nzt+1
1257	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
1258	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
1259	w(k,j,nxlg:-1) = 0.0
1260	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
1261	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
1262	ENDDO
1263	ENDDO
1264	ENDIF
1265
1266	!
1267	!-- Calculate the damping factors to be used at the inflow. For a
1268	!-- turbulent inflow the turbulent fluctuations have to be limited
1269	!-- vertically because otherwise the turbulent inflow layer will grow
1270	!-- in time.
1271	IF ( inflow_damping_height == 9999999.9 ) THEN
1272	!
1273	!-- Default: use the inversion height calculated by the prerun; if
1274	!-- this is zero, inflow_damping_height must be explicitly
1275	!-- specified.
1276	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0 ) THEN
1277	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
1278	ELSE
1279	WRITE( message_string, * ) 'inflow_damping_height must be ',&
1280	'explicitly specified because&the inversion height ', &
1281	'calculated by the prerun is zero.'
1282	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
1283	ENDIF
1284
1285	ENDIF
1286
1287	IF ( inflow_damping_width == 9999999.9 ) THEN
1288	!
1289	!-- Default for the transition range: one tenth of the undamped
1290	!-- layer
1291	inflow_damping_width = 0.1 * inflow_damping_height
1292
1293	ENDIF
1294
1295	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
1296
1297	DO k = nzb, nzt+1
1298
1299	IF ( zu(k) <= inflow_damping_height ) THEN
1300	inflow_damping_factor(k) = 1.0
1301	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
1302	inflow_damping_factor(k) = 1.0 - &
1303	( zu(k) - inflow_damping_height ) / &
1304	inflow_damping_width
1305	ELSE
1306	inflow_damping_factor(k) = 0.0
1307	ENDIF
1308
1309	ENDDO
1310
1311	ENDIF
1312
1313	!
1314	!-- Inside buildings set velocities and TKE back to zero
1315	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1316	topography /= 'flat' ) THEN
1317	!
1318	!-- Inside buildings set velocities and TKE back to zero.
1319	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
1320	!-- maybe revise later.
1321	DO i = nxlg, nxrg
1322	DO j = nysg, nyng
1323	u (nzb:nzb_u_inner(j,i),j,i) = 0.0
1324	v (nzb:nzb_v_inner(j,i),j,i) = 0.0
1325	w (nzb:nzb_w_inner(j,i),j,i) = 0.0
1326	e (nzb:nzb_w_inner(j,i),j,i) = 0.0
1327	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0
1328	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0
1329	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1330	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1331	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1332	ENDDO
1333	ENDDO
1334
1335	ENDIF
1336
1337	!
1338	!-- Calculate initial temperature field and other constants used in case
1339	!-- of a sloping surface
1340	IF ( sloping_surface ) CALL init_slope
1341
1342	!
1343	!-- Initialize new time levels (only done in order to set boundary values
1344	!-- including ghost points)
1345	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1346	IF ( humidity .OR. passive_scalar ) THEN
1347	q_p = q
1348	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1349	precipitation ) THEN
1350	qr_p = qr
1351	nr_p = nr
1352	ENDIF
1353	ENDIF
1354	IF ( ocean ) sa_p = sa
1355
1356	!
1357	!-- Allthough tendency arrays are set in prognostic_equations, they have
1358	!-- have to be predefined here because they are used (but multiplied with 0)
1359	!-- there before they are set.
1360	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
1361	IF ( humidity .OR. passive_scalar ) THEN
1362	tq_m = 0.0
1363	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1364	precipitation ) THEN
1365	tqr_m = 0.0
1366	tnr_m = 0.0
1367	ENDIF
1368	ENDIF
1369	IF ( ocean ) tsa_m = 0.0
1370
1371	ELSE
1372	!
1373	!-- Actually this part of the programm should not be reached
1374	message_string = 'unknown initializing problem'
1375	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
1376	ENDIF
1377
1378
1379	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1380	!
1381	!-- Initialize old timelevels needed for radiation boundary conditions
1382	IF ( outflow_l ) THEN
1383	u_m_l(:,:,:) = u(:,:,1:2)
1384	v_m_l(:,:,:) = v(:,:,0:1)
1385	w_m_l(:,:,:) = w(:,:,0:1)
1386	ENDIF
1387	IF ( outflow_r ) THEN
1388	u_m_r(:,:,:) = u(:,:,nx-1:nx)
1389	v_m_r(:,:,:) = v(:,:,nx-1:nx)
1390	w_m_r(:,:,:) = w(:,:,nx-1:nx)
1391	ENDIF
1392	IF ( outflow_s ) THEN
1393	u_m_s(:,:,:) = u(:,0:1,:)
1394	v_m_s(:,:,:) = v(:,1:2,:)
1395	w_m_s(:,:,:) = w(:,0:1,:)
1396	ENDIF
1397	IF ( outflow_n ) THEN
1398	u_m_n(:,:,:) = u(:,ny-1:ny,:)
1399	v_m_n(:,:,:) = v(:,ny-1:ny,:)
1400	w_m_n(:,:,:) = w(:,ny-1:ny,:)
1401	ENDIF
1402
1403	ENDIF
1404
1405	!
1406	!-- Calculate the initial volume flow at the right and north boundary
1407	IF ( conserve_volume_flow ) THEN
1408
1409	IF ( use_prescribed_profile_data ) THEN
1410
1411	volume_flow_initial_l = 0.0
1412	volume_flow_area_l = 0.0
1413
1414	IF ( nxr == nx ) THEN
1415	DO j = nys, nyn
1416	DO k = nzb_2d(j,nx)+1, nzt
1417	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1418	u_init(k) * dzw(k)
1419	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1420	ENDDO
1421	ENDDO
1422	ENDIF
1423
1424	IF ( nyn == ny ) THEN
1425	DO i = nxl, nxr
1426	DO k = nzb_2d(ny,i)+1, nzt
1427	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1428	v_init(k) * dzw(k)
1429	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1430	ENDDO
1431	ENDDO
1432	ENDIF
1433
1434	#if defined( __parallel )
1435	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1436	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1437	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1438	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1439
1440	#else
1441	volume_flow_initial = volume_flow_initial_l
1442	volume_flow_area = volume_flow_area_l
1443	#endif
1444
1445	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1446
1447	volume_flow_initial_l = 0.0
1448	volume_flow_area_l = 0.0
1449
1450	IF ( nxr == nx ) THEN
1451	DO j = nys, nyn
1452	DO k = nzb_2d(j,nx)+1, nzt
1453	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1454	hom_sum(k,1,0) * dzw(k)
1455	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1456	ENDDO
1457	ENDDO
1458	ENDIF
1459
1460	IF ( nyn == ny ) THEN
1461	DO i = nxl, nxr
1462	DO k = nzb_2d(ny,i)+1, nzt
1463	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1464	hom_sum(k,2,0) * dzw(k)
1465	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1466	ENDDO
1467	ENDDO
1468	ENDIF
1469
1470	#if defined( __parallel )
1471	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1472	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1473	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1474	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1475
1476	#else
1477	volume_flow_initial = volume_flow_initial_l
1478	volume_flow_area = volume_flow_area_l
1479	#endif
1480
1481	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1482
1483	volume_flow_initial_l = 0.0
1484	volume_flow_area_l = 0.0
1485
1486	IF ( nxr == nx ) THEN
1487	DO j = nys, nyn
1488	DO k = nzb_2d(j,nx)+1, nzt
1489	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1490	u(k,j,nx) * dzw(k)
1491	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1492	ENDDO
1493	ENDDO
1494	ENDIF
1495
1496	IF ( nyn == ny ) THEN
1497	DO i = nxl, nxr
1498	DO k = nzb_2d(ny,i)+1, nzt
1499	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1500	v(k,ny,i) * dzw(k)
1501	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1502	ENDDO
1503	ENDDO
1504	ENDIF
1505
1506	#if defined( __parallel )
1507	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1508	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1509	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1510	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1511
1512	#else
1513	volume_flow_initial = volume_flow_initial_l
1514	volume_flow_area = volume_flow_area_l
1515	#endif
1516
1517	ENDIF
1518
1519	!
1520	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
1521	!-- from u\|v_bulk instead
1522	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
1523	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
1524	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
1525	ENDIF
1526
1527	ENDIF
1528
1529	!
1530	!-- Initialize quantities for special advections schemes
1531	CALL init_advec
1532
1533	!
1534	!-- Impose random perturbation on the horizontal velocity field and then
1535	!-- remove the divergences from the velocity field at the initial stage
1536	IF ( create_disturbances .AND. &
1537	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1538	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1539
1540	CALL disturb_field( nzb_u_inner, tend, u )
1541	CALL disturb_field( nzb_v_inner, tend, v )
1542	n_sor = nsor_ini
1543	!$acc data copyin( d, ddzu, ddzw, nzb_s_inner, nzb_u_inner ) &
1544	!$acc copyin( nzb_v_inner, nzb_w_inner, p, rflags_s_inner, tend ) &
1545	!$acc copyin( weight_pres, weight_substep ) &
1546	!$acc copy( tri, tric, u, v, w )
1547	CALL pres
1548	!$acc end data
1549	n_sor = nsor
1550	ENDIF
1551
1552	!
1553	!-- Initialization of the leaf area density
1554	IF ( plant_canopy ) THEN
1555
1556	SELECT CASE ( TRIM( canopy_mode ) )
1557
1558	CASE( 'block' )
1559
1560	DO i = nxlg, nxrg
1561	DO j = nysg, nyng
1562	lad_s(:,j,i) = lad(:)
1563	cdc(:,j,i) = drag_coefficient
1564	IF ( passive_scalar ) THEN
1565	sls(:,j,i) = leaf_surface_concentration
1566	sec(:,j,i) = scalar_exchange_coefficient
1567	ENDIF
1568	ENDDO
1569	ENDDO
1570
1571	CASE DEFAULT
1572
1573	!
1574	!-- The DEFAULT case is reached either if the parameter
1575	!-- canopy mode contains a wrong character string or if the
1576	!-- user has coded a special case in the user interface.
1577	!-- There, the subroutine user_init_plant_canopy checks
1578	!-- which of these two conditions applies.
1579	CALL user_init_plant_canopy
1580
1581	END SELECT
1582
1583	CALL exchange_horiz( lad_s, nbgp )
1584	CALL exchange_horiz( cdc, nbgp )
1585
1586	IF ( passive_scalar ) THEN
1587	CALL exchange_horiz( sls, nbgp )
1588	CALL exchange_horiz( sec, nbgp )
1589	ENDIF
1590
1591	!
1592	!-- Sharp boundaries of the plant canopy in horizontal directions
1593	!-- In vertical direction the interpolation is retained, as the leaf
1594	!-- area density is initialised by prescribing a vertical profile
1595	!-- consisting of piecewise linear segments. The upper boundary
1596	!-- of the plant canopy is now defined by lad_w(pch_index,:,:) = 0.0.
1597
1598	DO i = nxl, nxr
1599	DO j = nys, nyn
1600	DO k = nzb, nzt+1
1601	IF ( lad_s(k,j,i) > 0.0 ) THEN
1602	lad_u(k,j,i) = lad_s(k,j,i)
1603	lad_u(k,j,i+1) = lad_s(k,j,i)
1604	lad_v(k,j,i) = lad_s(k,j,i)
1605	lad_v(k,j+1,i) = lad_s(k,j,i)
1606	ENDIF
1607	ENDDO
1608	DO k = nzb, nzt
1609	lad_w(k,j,i) = 0.5 * ( lad_s(k+1,j,i) + lad_s(k,j,i) )
1610	ENDDO
1611	ENDDO
1612	ENDDO
1613
1614	lad_w(pch_index,:,:) = 0.0
1615	lad_w(nzt+1,:,:) = lad_w(nzt,:,:)
1616
1617	CALL exchange_horiz( lad_u, nbgp )
1618	CALL exchange_horiz( lad_v, nbgp )
1619	CALL exchange_horiz( lad_w, nbgp )
1620
1621	!
1622	!-- Initialisation of the canopy heat source distribution
1623	IF ( cthf /= 0.0 ) THEN
1624	!
1625	!-- Piecewise evaluation of the leaf area index by
1626	!-- integration of the leaf area density
1627	lai(:,:,:) = 0.0
1628	DO i = nxlg, nxrg
1629	DO j = nysg, nyng
1630	DO k = pch_index-1, 0, -1
1631	lai(k,j,i) = lai(k+1,j,i) + &
1632	( 0.5 * ( lad_w(k+1,j,i) + &
1633	lad_s(k+1,j,i) ) * &
1634	( zw(k+1) - zu(k+1) ) ) + &
1635	( 0.5 * ( lad_w(k,j,i) + &
1636	lad_s(k+1,j,i) ) * &
1637	( zu(k+1) - zw(k) ) )
1638	ENDDO
1639	ENDDO
1640	ENDDO
1641
1642	!
1643	!-- Evaluation of the upward kinematic vertical heat flux within the
1644	!-- canopy
1645	DO i = nxlg, nxrg
1646	DO j = nysg, nyng
1647	DO k = 0, pch_index
1648	canopy_heat_flux(k,j,i) = cthf * &
1649	exp( -0.6 * lai(k,j,i) )
1650	ENDDO
1651	ENDDO
1652	ENDDO
1653
1654	!
1655	!-- The near surface heat flux is derived from the heat flux
1656	!-- distribution within the canopy
1657	shf(:,:) = canopy_heat_flux(0,:,:)
1658
1659	ENDIF
1660
1661	ENDIF
1662
1663	!
1664	!-- If required, initialize dvrp-software
1665	IF ( dt_dvrp /= 9999999.9 ) CALL init_dvrp
1666
1667	IF ( ocean ) THEN
1668	!
1669	!-- Initialize quantities needed for the ocean model
1670	CALL init_ocean
1671
1672	ELSE
1673	!
1674	!-- Initialize quantities for handling cloud physics
1675	!-- This routine must be called before lpm_init, because
1676	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
1677	!-- lpm_init) is not defined.
1678	CALL init_cloud_physics
1679	ENDIF
1680
1681	!
1682	!-- If required, initialize particles
1683	IF ( particle_advection ) CALL lpm_init
1684
1685	!
1686	!-- Initialize the ws-scheme.
1687	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
1688
1689	!
1690	!-- Setting weighting factors for calculation of perturbation pressure
1691	!-- and turbulent quantities from the RK substeps
1692	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
1693
1694	weight_substep(1) = 1./6.
1695	weight_substep(2) = 3./10.
1696	weight_substep(3) = 8./15.
1697
1698	weight_pres(1) = 1./3.
1699	weight_pres(2) = 5./12.
1700	weight_pres(3) = 1./4.
1701
1702	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
1703
1704	weight_substep(1) = 1./2.
1705	weight_substep(2) = 1./2.
1706
1707	weight_pres(1) = 1./2.
1708	weight_pres(2) = 1./2.
1709
1710	ELSE ! for Euler-method
1711
1712	weight_substep(1) = 1.0
1713	weight_pres(1) = 1.0
1714
1715	ENDIF
1716
1717	!
1718	!-- Initialize Rayleigh damping factors
1719	rdf = 0.0
1720	rdf_sc = 0.0
1721	IF ( rayleigh_damping_factor /= 0.0 ) THEN
1722	IF ( .NOT. ocean ) THEN
1723	DO k = nzb+1, nzt
1724	IF ( zu(k) >= rayleigh_damping_height ) THEN
1725	rdf(k) = rayleigh_damping_factor * &
1726	( SIN( pi * 0.5 * ( zu(k) - rayleigh_damping_height ) &
1727	/ ( zu(nzt) - rayleigh_damping_height ) )&
1728	)**2
1729	ENDIF
1730	ENDDO
1731	ELSE
1732	DO k = nzt, nzb+1, -1
1733	IF ( zu(k) <= rayleigh_damping_height ) THEN
1734	rdf(k) = rayleigh_damping_factor * &
1735	( SIN( pi * 0.5 * ( rayleigh_damping_height - zu(k) ) &
1736	/ ( rayleigh_damping_height - zu(nzb+1)))&
1737	)**2
1738	ENDIF
1739	ENDDO
1740	ENDIF
1741	ENDIF
1742	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
1743
1744	!
1745	!-- Initialize the starting level and the vertical smoothing factor used for
1746	!-- the external pressure gradient
1747	dp_smooth_factor = 1.0
1748	IF ( dp_external ) THEN
1749	!
1750	!-- Set the starting level dp_level_ind_b only if it has not been set before
1751	!-- (e.g. in init_grid).
1752	IF ( dp_level_ind_b == 0 ) THEN
1753	ind_array = MINLOC( ABS( dp_level_b - zu ) )
1754	dp_level_ind_b = ind_array(1) - 1 + nzb
1755	! MINLOC uses lower array bound 1
1756	ENDIF
1757	IF ( dp_smooth ) THEN
1758	dp_smooth_factor(:dp_level_ind_b) = 0.0
1759	DO k = dp_level_ind_b+1, nzt
1760	dp_smooth_factor(k) = 0.5 * ( 1.0 + SIN( pi * &
1761	( REAL( k - dp_level_ind_b ) / &
1762	REAL( nzt - dp_level_ind_b ) - 0.5 ) ) )
1763	ENDDO
1764	ENDIF
1765	ENDIF
1766
1767	!
1768	!-- Initialize damping zone for the potential temperature in case of
1769	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
1770	!-- at the inflow boundary and decreases to zero at pt_damping_width.
1771	ptdf_x = 0.0
1772	ptdf_y = 0.0
1773	IF ( bc_lr_dirrad ) THEN
1774	DO i = nxl, nxr
1775	IF ( ( i * dx ) < pt_damping_width ) THEN
1776	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5 * &
1777	REAL( pt_damping_width - i * dx ) / ( &
1778	REAL( pt_damping_width ) ) ) )**2
1779	ENDIF
1780	ENDDO
1781	ELSEIF ( bc_lr_raddir ) THEN
1782	DO i = nxl, nxr
1783	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
1784	ptdf_x(i) = pt_damping_factor * &
1785	SIN( pi * 0.5 * ( ( i - nx ) * dx + pt_damping_width ) / &
1786	REAL( pt_damping_width ) )**2
1787	ENDIF
1788	ENDDO
1789	ELSEIF ( bc_ns_dirrad ) THEN
1790	DO j = nys, nyn
1791	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
1792	ptdf_y(j) = pt_damping_factor * &
1793	SIN( pi * 0.5 * ( ( j - ny ) * dy + pt_damping_width ) / &
1794	REAL( pt_damping_width ) )**2
1795	ENDIF
1796	ENDDO
1797	ELSEIF ( bc_ns_raddir ) THEN
1798	DO j = nys, nyn
1799	IF ( ( j * dy ) < pt_damping_width ) THEN
1800	ptdf_y(j) = pt_damping_factor * &
1801	SIN( pi * 0.5 * ( pt_damping_width - j * dy ) / &
1802	REAL( pt_damping_width ) )**2
1803	ENDIF
1804	ENDDO
1805	ENDIF
1806
1807	!
1808	!-- Initialize local summation arrays for routine flow_statistics.
1809	!-- This is necessary because they may not yet have been initialized when they
1810	!-- are called from flow_statistics (or - depending on the chosen model run -
1811	!-- are never initialized)
1812	sums_divnew_l = 0.0
1813	sums_divold_l = 0.0
1814	sums_l_l = 0.0
1815	sums_up_fraction_l = 0.0
1816	sums_wsts_bc_l = 0.0
1817
1818	!
1819	!-- Pre-set masks for regional statistics. Default is the total model domain.
1820	!-- Ghost points are excluded because counting values at the ghost boundaries
1821	!-- would bias the statistics
1822	rmask = 1.0
1823	rmask(:,nxlg:nxl-1,:) = 0.0; rmask(:,nxr+1:nxrg,:) = 0.0
1824	rmask(nysg:nys-1,:,:) = 0.0; rmask(nyn+1:nyng,:,:) = 0.0
1825
1826	!
1827	!-- User-defined initializing actions. Check afterwards, if maximum number
1828	!-- of allowed timeseries is exceeded
1829	CALL user_init
1830
1831	IF ( dots_num > dots_max ) THEN
1832	WRITE( message_string, * ) 'number of time series quantities exceeds', &
1833	' its maximum of dots_max = ', dots_max, &
1834	' &Please increase dots_max in modules.f90.'
1835	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
1836	ENDIF
1837
1838	!
1839	!-- Input binary data file is not needed anymore. This line must be placed
1840	!-- after call of user_init!
1841	CALL close_file( 13 )
1842
1843	!
1844	!-- Compute total sum of active mask grid points
1845	!-- ngp_2dh: number of grid points of a horizontal cross section through the
1846	!-- total domain
1847	!-- ngp_3d: number of grid points of the total domain
1848	ngp_2dh_outer_l = 0
1849	ngp_2dh_outer = 0
1850	ngp_2dh_s_inner_l = 0
1851	ngp_2dh_s_inner = 0
1852	ngp_2dh_l = 0
1853	ngp_2dh = 0
1854	ngp_3d_inner_l = 0.0
1855	ngp_3d_inner = 0
1856	ngp_3d = 0
1857	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
1858
1859	DO sr = 0, statistic_regions
1860	DO i = nxl, nxr
1861	DO j = nys, nyn
1862	IF ( rmask(j,i,sr) == 1.0 ) THEN
1863	!
1864	!-- All xy-grid points
1865	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
1866	!
1867	!-- xy-grid points above topography
1868	DO k = nzb_s_outer(j,i), nz + 1
1869	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
1870	ENDDO
1871	DO k = nzb_s_inner(j,i), nz + 1
1872	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
1873	ENDDO
1874	!
1875	!-- All grid points of the total domain above topography
1876	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
1877	( nz - nzb_s_inner(j,i) + 2 )
1878	ENDIF
1879	ENDDO
1880	ENDDO
1881	ENDDO
1882
1883	sr = statistic_regions + 1
1884	#if defined( __parallel )
1885	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1886	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
1887	comm2d, ierr )
1888	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1889	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
1890	MPI_INTEGER, MPI_SUM, comm2d, ierr )
1891	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1892	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
1893	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
1894	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1895	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
1896	MPI_SUM, comm2d, ierr )
1897	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
1898	#else
1899	ngp_2dh = ngp_2dh_l
1900	ngp_2dh_outer = ngp_2dh_outer_l
1901	ngp_2dh_s_inner = ngp_2dh_s_inner_l
1902	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
1903	#endif
1904
1905	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
1906	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
1907
1908	!
1909	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
1910	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
1911	!-- the respective subdomain lie below the surface topography
1912	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
1913	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
1914	ngp_3d_inner(:) )
1915	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
1916
1917	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, ngp_3d_inner_tmp )
1918
1919
1920	END SUBROUTINE init_3d_model

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