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init_3d_model.f90 @ 1111

Last change on this file since 1111 was 1111, checked in by raasch, 11 years ago

New:
---

GPU porting of pres, swap_timelevel. Adjustments of openACC directives.
Further porting of poisfft, which now runs completely on GPU without any
host/device data transfer for serial an parallel runs (but parallel runs
require data transfer before and after the MPI transpositions).
GPU-porting of tridiagonal solver:
tridiagonal routines split into extermal subroutines (instead using CONTAINS),
no distinction between parallel/non-parallel in poisfft and tridia any more,
tridia routines moved to end of file because of probable bug in PGI compiler
(otherwise "invalid device function" is indicated during runtime).
(cuda_fft_interfaces, fft_xy, flow_statistics, init_3d_model, palm, poisfft, pres, prognostic_equations, swap_timelevel, time_integration, transpose)
output of accelerator board information. (header)

optimization of tridia routines: constant elements and coefficients of tri are
stored in seperate arrays ddzuw and tric, last dimension of tri reduced from 5 to 2,
(init_grid, init_3d_model, modules, palm, poisfft)

poisfft_init is now called internally from poisfft,
(Makefile, Makefile_check, init_pegrid, poisfft, poisfft_hybrid)

CPU-time per grid point and timestep is output to CPU_MEASURES file
(cpu_statistics, modules, time_integration)

Changed:

resorting from/to array work changed, work now has 4 dimensions instead of 1 (transpose)
array diss allocated only if required (init_3d_model)

pressure boundary condition "Neumann+inhomo" removed from the code
(check_parameters, header, poisfft, poisfft_hybrid, pres)

Errors:

bugfix: dependency added for cuda_fft_interfaces (Makefile)
bugfix: CUDA fft plans adjusted for domain decomposition (before they always
used total domain) (fft_xy)

Property svn:keywords set to Id

File size: 63.4 KB

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

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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1111

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