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source: palm/trunk/SOURCE/init_3d_model.f90 @ 2011

Last change on this file since 2011 was 2011, checked in by kanani, 8 years ago

changes related to steering and formating of urban surface model

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/palm/branches/forwind/SOURCE/init_3d_model.f90 1564-1913

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1	!> @file init_3d_model.f90
2	!------------------------------------------------------------------------------!
3	! This file is part of PALM.
4	!
5	! PALM is free software: you can redistribute it and/or modify it under the
6	! terms of the GNU General Public License as published by the Free Software
7	! Foundation, either version 3 of the License, or (at your option) any later
8	! version.
9	!
10	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
11	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
12	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
13	!
14	! You should have received a copy of the GNU General Public License along with
15	! PALM. If not, see <http://www.gnu.org/licenses/>.
16	!
17	! Copyright 1997-2016 Leibniz Universitaet Hannover
18	!------------------------------------------------------------------------------!
19	!
20	! Current revisions:
21	! ------------------
22	! Flag urban_surface is now defined in module control_parameters.
23	!
24	! Former revisions:
25	! -----------------
26	! $Id: init_3d_model.f90 2011 2016-09-19 17:29:57Z kanani $
27	!
28	! 2007 2016-08-24 15:47:17Z kanani
29	! Added support for urban surface model,
30	! adjusted location_message in case of plant_canopy
31	!
32	! 2000 2016-08-20 18:09:15Z knoop
33	! Forced header and separation lines into 80 columns
34	!
35	! 1992 2016-08-12 15:14:59Z suehring
36	! Initializaton of scalarflux at model top
37	! Bugfixes in initialization of surface and top salinity flux, top scalar and
38	! humidity fluxes
39	!
40	! 1960 2016-07-12 16:34:24Z suehring
41	! Separate humidity and passive scalar
42	! Increase dimension for mean_inflow_profiles
43	! Remove inadvertent write-statement
44	! Bugfix, large-scale forcing is still not implemented for passive scalars
45	!
46	! 1957 2016-07-07 10:43:48Z suehring
47	! flight module added
48	!
49	! 1920 2016-05-30 10:50:15Z suehring
50	! Initialize us with very small number to avoid segmentation fault during
51	! calculation of Obukhov length
52	!
53	! 1918 2016-05-27 14:35:57Z raasch
54	! intermediate_timestep_count is set 0 instead 1 for first call of pres,
55	! bugfix: initialization of local sum arrays are moved to the beginning of the
56	! routine because otherwise results from pres are overwritten
57	!
58	! 1914 2016-05-26 14:44:07Z witha
59	! Added initialization of the wind turbine model
60	!
61	! 1878 2016-04-19 12:30:36Z hellstea
62	! The zeroth element of weight_pres removed as unnecessary
63	!
64	! 1849 2016-04-08 11:33:18Z hoffmann
65	! Adapted for modularization of microphysics.
66	! precipitation_amount, precipitation_rate, prr moved to arrays_3d.
67	! Initialization of nc_1d, nr_1d, pt_1d, qc_1d, qr_1d, q_1d moved to
68	! microphysics_init.
69	!
70	! 1845 2016-04-08 08:29:13Z raasch
71	! nzb_2d replaced by nzb_u\|v_inner
72	!
73	! 1833 2016-04-07 14:23:03Z raasch
74	! initialization of spectra quantities moved to spectra_mod
75	!
76	! 1831 2016-04-07 13:15:51Z hoffmann
77	! turbulence renamed collision_turbulence
78	!
79	! 1826 2016-04-07 12:01:39Z maronga
80	! Renamed radiation calls.
81	! Renamed canopy model calls.
82	!
83	! 1822 2016-04-07 07:49:42Z hoffmann
84	! icloud_scheme replaced by microphysics_*
85	!
86	! 1817 2016-04-06 15:44:20Z maronga
87	! Renamed lsm calls.
88	!
89	! 1815 2016-04-06 13:49:59Z raasch
90	! zero-settings for velocities inside topography re-activated (was deactivated
91	! in r1762)
92	!
93	! 1788 2016-03-10 11:01:04Z maronga
94	! Added z0q.
95	! Syntax layout improved.
96	!
97	! 1783 2016-03-06 18:36:17Z raasch
98	! netcdf module name changed + related changes
99	!
100	! 1764 2016-02-28 12:45:19Z raasch
101	! bugfix: increase size of volume_flow_area_l and volume_flow_initial_l by 1
102	!
103	! 1762 2016-02-25 12:31:13Z hellstea
104	! Introduction of nested domain feature
105	!
106	! 1738 2015-12-18 13:56:05Z raasch
107	! calculate mean surface level height for each statistic region
108	!
109	! 1734 2015-12-02 12:17:12Z raasch
110	! no initial disturbances in case that the disturbance energy limit has been
111	! set zero
112	!
113	! 1707 2015-11-02 15:24:52Z maronga
114	! Bugfix: transfer of Richardson number from 1D model to Obukhov length caused
115	! devision by zero in neutral stratification
116	!
117	! 1691 2015-10-26 16:17:44Z maronga
118	! Call to init_surface_layer added. rif is replaced by ol and zeta.
119	!
120	! 1682 2015-10-07 23:56:08Z knoop
121	! Code annotations made doxygen readable
122	!
123	! 1615 2015-07-08 18:49:19Z suehring
124	! Enable turbulent inflow for passive_scalar and humidity
125	!
126	! 1585 2015-04-30 07:05:52Z maronga
127	! Initialization of radiation code is now done after LSM initializtion
128	!
129	! 1575 2015-03-27 09:56:27Z raasch
130	! adjustments for psolver-queries
131	!
132	! 1551 2015-03-03 14:18:16Z maronga
133	! Allocation of land surface arrays is now done in the subroutine lsm_init_arrays,
134	! which is part of land_surface_model.
135	!
136	! 1507 2014-12-10 12:14:18Z suehring
137	! Bugfix: set horizontal velocity components to zero inside topography
138	!
139	! 1496 2014-12-02 17:25:50Z maronga
140	! Added initialization of the land surface and radiation schemes
141	!
142	! 1484 2014-10-21 10:53:05Z kanani
143	! Changes due to new module structure of the plant canopy model:
144	! canopy-related initialization (e.g. lad and canopy_heat_flux) moved to new
145	! subroutine init_plant_canopy within the module plant_canopy_model_mod,
146	! call of subroutine init_plant_canopy added.
147	!
148	! 1431 2014-07-15 14:47:17Z suehring
149	! var_d added, in order to normalize spectra.
150	!
151	! 1429 2014-07-15 12:53:45Z knoop
152	! Ensemble run capability added to parallel random number generator
153	!
154	! 1411 2014-05-16 18:01:51Z suehring
155	! Initial horizontal velocity profiles were not set to zero at the first vertical
156	! grid level in case of non-cyclic lateral boundary conditions.
157	!
158	! 1406 2014-05-16 13:47:01Z raasch
159	! bugfix: setting of initial velocities at k=1 to zero not in case of a
160	! no-slip boundary condition for uv
161	!
162	! 1402 2014-05-09 14:25:13Z raasch
163	! location messages modified
164	!
165	! 1400 2014-05-09 14:03:54Z knoop
166	! Parallel random number generator added
167	!
168	! 1384 2014-05-02 14:31:06Z raasch
169	! location messages added
170	!
171	! 1361 2014-04-16 15:17:48Z hoffmann
172	! tend_* removed
173	! Bugfix: w_subs is not allocated anymore if it is already allocated
174	!
175	! 1359 2014-04-11 17:15:14Z hoffmann
176	! module lpm_init_mod added to use statements, because lpm_init has become a
177	! module
178	!
179	! 1353 2014-04-08 15:21:23Z heinze
180	! REAL constants provided with KIND-attribute
181	!
182	! 1340 2014-03-25 19:45:13Z kanani
183	! REAL constants defined as wp-kind
184	!
185	! 1322 2014-03-20 16:38:49Z raasch
186	! REAL constants defined as wp-kind
187	! module interfaces removed
188	!
189	! 1320 2014-03-20 08:40:49Z raasch
190	! ONLY-attribute added to USE-statements,
191	! kind-parameters added to all INTEGER and REAL declaration statements,
192	! kinds are defined in new module kinds,
193	! revision history before 2012 removed,
194	! comment fields (!:) to be used for variable explanations added to
195	! all variable declaration statements
196	!
197	! 1316 2014-03-17 07:44:59Z heinze
198	! Bugfix: allocation of w_subs
199	!
200	! 1299 2014-03-06 13:15:21Z heinze
201	! Allocate w_subs due to extension of large scale subsidence in combination
202	! with large scale forcing data (LSF_DATA)
203	!
204	! 1241 2013-10-30 11:36:58Z heinze
205	! Overwrite initial profiles in case of nudging
206	! Inititialize shf and qsws in case of large_scale_forcing
207	!
208	! 1221 2013-09-10 08:59:13Z raasch
209	! +rflags_s_inner in copyin statement, use copyin for most arrays instead of
210	! copy
211	!
212	! 1212 2013-08-15 08:46:27Z raasch
213	! array tri is allocated and included in data copy statement
214	!
215	! 1195 2013-07-01 12:27:57Z heinze
216	! Bugfix: move allocation of ref_state to parin.f90 and read_var_list.f90
217	!
218	! 1179 2013-06-14 05:57:58Z raasch
219	! allocate and set ref_state to be used in buoyancy terms
220	!
221	! 1171 2013-05-30 11:27:45Z raasch
222	! diss array is allocated with full size if accelerator boards are used
223	!
224	! 1159 2013-05-21 11:58:22Z fricke
225	! -bc_lr_dirneu, bc_lr_neudir, bc_ns_dirneu, bc_ns_neudir
226	!
227	! 1153 2013-05-10 14:33:08Z raasch
228	! diss array is allocated with dummy elements even if it is not needed
229	! (required by PGI 13.4 / CUDA 5.0)
230	!
231	! 1115 2013-03-26 18:16:16Z hoffmann
232	! unused variables removed
233	!
234	! 1113 2013-03-10 02:48:14Z raasch
235	! openACC directive modified
236	!
237	! 1111 2013-03-08 23:54:10Z raasch
238	! openACC directives added for pres
239	! array diss allocated only if required
240	!
241	! 1092 2013-02-02 11:24:22Z raasch
242	! unused variables removed
243	!
244	! 1065 2012-11-22 17:42:36Z hoffmann
245	! allocation of diss (dissipation rate) in case of turbulence = .TRUE. added
246	!
247	! 1053 2012-11-13 17:11:03Z hoffmann
248	! allocation and initialisation of necessary data arrays for the two-moment
249	! cloud physics scheme the two new prognostic equations (nr, qr):
250	! +dr, lambda_r, mu_r, sed_, xr, s, sws, swst, , _p, t_m, _1, _2, _3,
251	! +tend_*, prr
252	!
253	! 1036 2012-10-22 13:43:42Z raasch
254	! code put under GPL (PALM 3.9)
255	!
256	! 1032 2012-10-21 13:03:21Z letzel
257	! save memory by not allocating pt_2 in case of neutral = .T.
258	!
259	! 1025 2012-10-07 16:04:41Z letzel
260	! bugfix: swap indices of mask for ghost boundaries
261	!
262	! 1015 2012-09-27 09:23:24Z raasch
263	! mask is set to zero for ghost boundaries
264	!
265	! 1010 2012-09-20 07:59:54Z raasch
266	! cpp switch __nopointer added for pointer free version
267	!
268	! 1003 2012-09-14 14:35:53Z raasch
269	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
270	!
271	! 1001 2012-09-13 14:08:46Z raasch
272	! all actions concerning leapfrog scheme removed
273	!
274	! 996 2012-09-07 10:41:47Z raasch
275	! little reformatting
276	!
277	! 978 2012-08-09 08:28:32Z fricke
278	! outflow damping layer removed
279	! roughness length for scalar quantites z0h added
280	! damping zone for the potential temperatur in case of non-cyclic lateral
281	! boundaries added
282	! initialization of ptdf_x, ptdf_y
283	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
284	!
285	! 849 2012-03-15 10:35:09Z raasch
286	! init_particles renamed lpm_init
287	!
288	! 825 2012-02-19 03:03:44Z raasch
289	! wang_collision_kernel renamed wang_kernel
290	!
291	! Revision 1.1 1998/03/09 16:22:22 raasch
292	! Initial revision
293	!
294	!
295	! Description:
296	! ------------
297	!> Allocation of arrays and initialization of the 3D model via
298	!> a) pre-run the 1D model
299	!> or
300	!> b) pre-set constant linear profiles
301	!> or
302	!> c) read values of a previous run
303	!------------------------------------------------------------------------------!
304	SUBROUTINE init_3d_model
305
306
307	USE advec_ws
308
309	USE arrays_3d
310
311	USE constants, &
312	ONLY: pi
313
314	USE control_parameters
315
316	USE flight_mod, &
317	ONLY: flight_init
318
319	USE grid_variables, &
320	ONLY: dx, dy
321
322	USE indices
323
324	USE lpm_init_mod, &
325	ONLY: lpm_init
326
327	USE kinds
328
329	USE land_surface_model_mod, &
330	ONLY: lsm_init, lsm_init_arrays, land_surface
331
332	USE ls_forcing_mod
333
334	USE microphysics_mod, &
335	ONLY: collision_turbulence, microphysics_init
336
337	USE model_1d, &
338	ONLY: e1d, kh1d, km1d, l1d, rif1d, u1d, us1d, usws1d, v1d, vsws1d
339
340	USE netcdf_interface, &
341	ONLY: dots_max, dots_num
342
343	USE particle_attributes, &
344	ONLY: particle_advection, use_sgs_for_particles, wang_kernel
345
346	USE pegrid
347
348	USE plant_canopy_model_mod, &
349	ONLY: pcm_init, plant_canopy
350
351	USE radiation_model_mod, &
352	ONLY: radiation_init, radiation
353
354	USE random_function_mod
355
356	USE random_generator_parallel, &
357	ONLY: random_number_parallel, random_seed_parallel, random_dummy, &
358	id_random_array, seq_random_array
359
360	USE statistics, &
361	ONLY: hom, hom_sum, mean_surface_level_height, pr_palm, rmask, &
362	statistic_regions, sums, sums_divnew_l, sums_divold_l, sums_l, &
363	sums_l_l, sums_up_fraction_l, sums_wsts_bc_l, ts_value, &
364	weight_pres, weight_substep
365
366	USE surface_layer_fluxes_mod, &
367	ONLY: init_surface_layer_fluxes
368
369	USE transpose_indices
370
371	USE urban_surface_mod, &
372	ONLY: usm_init_urban_surface
373
374	USE wind_turbine_model_mod, &
375	ONLY: wtm_init, wtm_init_arrays, wind_turbine
376
377	IMPLICIT NONE
378
379	INTEGER(iwp) :: i !<
380	INTEGER(iwp) :: ind_array(1) !<
381	INTEGER(iwp) :: j !<
382	INTEGER(iwp) :: k !<
383	INTEGER(iwp) :: sr !<
384
385	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !<
386
387	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !<
388	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !<
389
390	REAL(wp), DIMENSION(1:3) :: volume_flow_area_l !<
391	REAL(wp), DIMENSION(1:3) :: volume_flow_initial_l !<
392
393	REAL(wp), DIMENSION(:), ALLOCATABLE :: mean_surface_level_height_l !<
394	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !<
395	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !<
396
397
398	CALL location_message( 'allocating arrays', .FALSE. )
399	!
400	!-- Allocate arrays
401	ALLOCATE( mean_surface_level_height(0:statistic_regions), &
402	mean_surface_level_height_l(0:statistic_regions), &
403	ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
404	ngp_3d(0:statistic_regions), &
405	ngp_3d_inner(0:statistic_regions), &
406	ngp_3d_inner_l(0:statistic_regions), &
407	ngp_3d_inner_tmp(0:statistic_regions), &
408	sums_divnew_l(0:statistic_regions), &
409	sums_divold_l(0:statistic_regions) )
410	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
411	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
412	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
413	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
414	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
415	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
416	sums(nzb:nzt+1,pr_palm+max_pr_user), &
417	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
418	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
419	sums_up_fraction_l(10,3,0:statistic_regions), &
420	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
421	ts_value(dots_max,0:statistic_regions) )
422	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
423
424	ALLOCATE( ol(nysg:nyng,nxlg:nxrg), shf(nysg:nyng,nxlg:nxrg), &
425	ts(nysg:nyng,nxlg:nxrg), tswst(nysg:nyng,nxlg:nxrg), &
426	us(nysg:nyng,nxlg:nxrg), usws(nysg:nyng,nxlg:nxrg), &
427	uswst(nysg:nyng,nxlg:nxrg), vsws(nysg:nyng,nxlg:nxrg), &
428	vswst(nysg:nyng,nxlg:nxrg), z0(nysg:nyng,nxlg:nxrg), &
429	z0h(nysg:nyng,nxlg:nxrg), z0q(nysg:nyng,nxlg:nxrg) )
430
431	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
432	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
433	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
434	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
435	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
436
437	#if defined( __nopointer )
438	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
439	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
440	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
441	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
442	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
443	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
444	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
445	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
446	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
447	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
448	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
449	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
450	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
451	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
452	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
453	#else
454	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
455	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
456	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
457	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
458	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
459	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
460	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
461	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
462	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
463	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
464	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
465	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
466	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
467	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
468	IF ( .NOT. neutral ) THEN
469	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
470	ENDIF
471	#endif
472
473	!
474	!-- Following array is required for perturbation pressure within the iterative
475	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
476	!-- the weighted average of the substeps and cannot be used in the Poisson
477	!-- solver.
478	IF ( psolver == 'sor' ) THEN
479	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
480	ELSEIF ( psolver(1:9) == 'multigrid' ) THEN
481	!
482	!-- For performance reasons, multigrid is using one ghost layer only
483	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
484	ENDIF
485
486	!
487	!-- Array for storing constant coeffficients of the tridiagonal solver
488	IF ( psolver == 'poisfft' ) THEN
489	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
490	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
491	ENDIF
492
493	IF ( humidity ) THEN
494	!
495	!-- 2D-humidity
496	ALLOCATE ( qs(nysg:nyng,nxlg:nxrg), &
497	qsws(nysg:nyng,nxlg:nxrg), &
498	qswst(nysg:nyng,nxlg:nxrg) )
499
500	!
501	!-- 3D-humidity
502	#if defined( __nopointer )
503	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
504	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
505	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
506	#else
507	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
508	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
509	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
510	#endif
511
512	!
513	!-- 3D-arrays needed for humidity
514	IF ( humidity ) THEN
515	#if defined( __nopointer )
516	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
517	#else
518	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
519	#endif
520
521	IF ( cloud_physics ) THEN
522
523	!
524	!-- Liquid water content
525	#if defined( __nopointer )
526	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
527	#else
528	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
529	#endif
530	!
531	!-- Precipitation amount and rate (only needed if output is switched)
532	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
533	precipitation_rate(nysg:nyng,nxlg:nxrg) )
534
535	!
536	!-- 3D-cloud water content
537	#if defined( __nopointer )
538	ALLOCATE( qc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
539	#else
540	ALLOCATE( qc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
541	#endif
542	!
543	!-- 3d-precipitation rate
544	ALLOCATE( prr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
545
546	IF ( microphysics_seifert ) THEN
547	!
548	!-- 2D-rain water content and rain drop concentration arrays
549	ALLOCATE ( qrs(nysg:nyng,nxlg:nxrg), &
550	qrsws(nysg:nyng,nxlg:nxrg), &
551	qrswst(nysg:nyng,nxlg:nxrg), &
552	nrs(nysg:nyng,nxlg:nxrg), &
553	nrsws(nysg:nyng,nxlg:nxrg), &
554	nrswst(nysg:nyng,nxlg:nxrg) )
555	!
556	!-- 3D-rain water content, rain drop concentration arrays
557	#if defined( __nopointer )
558	ALLOCATE( nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
559	nr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
560	qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
561	qr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
562	tnr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
563	tqr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
564	#else
565	ALLOCATE( nr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
566	nr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
567	nr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
568	qr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
569	qr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
570	qr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
571	#endif
572	ENDIF
573
574	ENDIF
575
576	IF ( cloud_droplets ) THEN
577	!
578	!-- Liquid water content, change in liquid water content
579	#if defined( __nopointer )
580	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
581	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
582	#else
583	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
584	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
585	#endif
586	!
587	!-- Real volume of particles (with weighting), volume of particles
588	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
589	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
590	ENDIF
591
592	ENDIF
593
594	ENDIF
595
596
597	IF ( passive_scalar ) THEN
598	!
599	!-- 2D-scalar arrays
600	ALLOCATE ( ss(nysg:nyng,nxlg:nxrg), &
601	ssws(nysg:nyng,nxlg:nxrg), &
602	sswst(nysg:nyng,nxlg:nxrg) )
603
604	!
605	!-- 3D scalar arrays
606	#if defined( __nopointer )
607	ALLOCATE( s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
608	s_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
609	ts_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
610	#else
611	ALLOCATE( s_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
612	s_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
613	s_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
614	#endif
615	ENDIF
616
617	IF ( ocean ) THEN
618	ALLOCATE( saswsb(nysg:nyng,nxlg:nxrg), &
619	saswst(nysg:nyng,nxlg:nxrg) )
620	#if defined( __nopointer )
621	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
622	rho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
623	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
624	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
625	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
626	#else
627	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
628	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
629	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
630	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
631	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
632	prho => prho_1
633	rho => rho_1 ! routines calc_mean_profile and diffusion_e require
634	! density to be apointer
635	#endif
636	IF ( humidity_remote ) THEN
637	ALLOCATE( qswst_remote(nysg:nyng,nxlg:nxrg))
638	qswst_remote = 0.0_wp
639	ENDIF
640	ENDIF
641
642	!
643	!-- 3D-array for storing the dissipation, needed for calculating the sgs
644	!-- particle velocities
645	IF ( use_sgs_for_particles .OR. wang_kernel .OR. collision_turbulence &
646	.OR. num_acc_per_node > 0 ) THEN
647	ALLOCATE( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
648	ENDIF
649
650	!
651	!-- 1D-array for large scale subsidence velocity
652	IF ( .NOT. ALLOCATED( w_subs ) ) THEN
653	ALLOCATE ( w_subs(nzb:nzt+1) )
654	w_subs = 0.0_wp
655	ENDIF
656
657	!
658	!-- ID-array and state-space-array for the parallel random number generator
659	IF ( random_generator == 'random-parallel' ) THEN
660	ALLOCATE ( seq_random_array(5,nysg:nyng,nxlg:nxrg) )
661	ALLOCATE ( id_random_array(0:ny,0:nx) )
662	seq_random_array = 0
663	id_random_array = 0
664	ENDIF
665
666	!
667	!-- 4D-array for storing the Rif-values at vertical walls
668	IF ( topography /= 'flat' ) THEN
669	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
670	rif_wall = 0.0_wp
671	ENDIF
672
673	!
674	!-- Arrays to store velocity data from t-dt and the phase speeds which
675	!-- are needed for radiation boundary conditions
676	IF ( outflow_l ) THEN
677	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
678	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
679	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
680	ENDIF
681	IF ( outflow_r ) THEN
682	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
683	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
684	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
685	ENDIF
686	IF ( outflow_l .OR. outflow_r ) THEN
687	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
688	c_w(nzb:nzt+1,nysg:nyng) )
689	ENDIF
690	IF ( outflow_s ) THEN
691	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
692	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
693	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
694	ENDIF
695	IF ( outflow_n ) THEN
696	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
697	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
698	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
699	ENDIF
700	IF ( outflow_s .OR. outflow_n ) THEN
701	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
702	c_w(nzb:nzt+1,nxlg:nxrg) )
703	ENDIF
704	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
705	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
706	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
707	ENDIF
708
709
710	#if ! defined( __nopointer )
711	!
712	!-- Initial assignment of the pointers
713	e => e_1; e_p => e_2; te_m => e_3
714	IF ( .NOT. neutral ) THEN
715	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
716	ELSE
717	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
718	ENDIF
719	u => u_1; u_p => u_2; tu_m => u_3
720	v => v_1; v_p => v_2; tv_m => v_3
721	w => w_1; w_p => w_2; tw_m => w_3
722
723	IF ( humidity ) THEN
724	q => q_1; q_p => q_2; tq_m => q_3
725	IF ( humidity ) THEN
726	vpt => vpt_1
727	IF ( cloud_physics ) THEN
728	ql => ql_1
729	qc => qc_1
730	IF ( microphysics_seifert ) THEN
731	qr => qr_1; qr_p => qr_2; tqr_m => qr_3
732	nr => nr_1; nr_p => nr_2; tnr_m => nr_3
733	ENDIF
734	ENDIF
735	ENDIF
736	IF ( cloud_droplets ) THEN
737	ql => ql_1
738	ql_c => ql_2
739	ENDIF
740	ENDIF
741
742	IF ( passive_scalar ) THEN
743	s => s_1; s_p => s_2; ts_m => s_3
744	ENDIF
745
746	IF ( ocean ) THEN
747	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
748	ENDIF
749	#endif
750
751	!
752	!-- Allocate land surface model arrays
753	IF ( land_surface ) THEN
754	CALL lsm_init_arrays
755	ENDIF
756
757	!
758	!-- Allocate wind turbine model arrays
759	IF ( wind_turbine ) THEN
760	CALL wtm_init_arrays
761	ENDIF
762
763	!
764	!-- Initialize virtual flight measurements
765	IF ( virtual_flight ) THEN
766	CALL flight_init
767	ENDIF
768
769	!
770	!-- Allocate arrays containing the RK coefficient for calculation of
771	!-- perturbation pressure and turbulent fluxes. At this point values are
772	!-- set for pressure calculation during initialization (where no timestep
773	!-- is done). Further below the values needed within the timestep scheme
774	!-- will be set.
775	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
776	weight_pres(1:intermediate_timestep_count_max) )
777	weight_substep = 1.0_wp
778	weight_pres = 1.0_wp
779	intermediate_timestep_count = 0 ! needed when simulated_time = 0.0
780
781	CALL location_message( 'finished', .TRUE. )
782
783	!
784	!-- Initialize local summation arrays for routine flow_statistics.
785	!-- This is necessary because they may not yet have been initialized when they
786	!-- are called from flow_statistics (or - depending on the chosen model run -
787	!-- are never initialized)
788	sums_divnew_l = 0.0_wp
789	sums_divold_l = 0.0_wp
790	sums_l_l = 0.0_wp
791	sums_up_fraction_l = 0.0_wp
792	sums_wsts_bc_l = 0.0_wp
793
794
795	!
796	!-- Initialize model variables
797	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
798	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
799	!
800	!-- First model run of a possible job queue.
801	!-- Initial profiles of the variables must be computes.
802	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
803
804	CALL location_message( 'initializing with 1D model profiles', .FALSE. )
805	!
806	!-- Use solutions of the 1D model as initial profiles,
807	!-- start 1D model
808	CALL init_1d_model
809	!
810	!-- Transfer initial profiles to the arrays of the 3D model
811	DO i = nxlg, nxrg
812	DO j = nysg, nyng
813	e(:,j,i) = e1d
814	kh(:,j,i) = kh1d
815	km(:,j,i) = km1d
816	pt(:,j,i) = pt_init
817	u(:,j,i) = u1d
818	v(:,j,i) = v1d
819	ENDDO
820	ENDDO
821
822	IF ( humidity ) THEN
823	DO i = nxlg, nxrg
824	DO j = nysg, nyng
825	q(:,j,i) = q_init
826	ENDDO
827	ENDDO
828	IF ( cloud_physics .AND. microphysics_seifert ) THEN
829	DO i = nxlg, nxrg
830	DO j = nysg, nyng
831	qr(:,j,i) = 0.0_wp
832	nr(:,j,i) = 0.0_wp
833	ENDDO
834	ENDDO
835
836	ENDIF
837	ENDIF
838	IF ( passive_scalar ) THEN
839	DO i = nxlg, nxrg
840	DO j = nysg, nyng
841	s(:,j,i) = s_init
842	ENDDO
843	ENDDO
844	ENDIF
845
846	IF ( .NOT. constant_diffusion ) THEN
847	DO i = nxlg, nxrg
848	DO j = nysg, nyng
849	e(:,j,i) = e1d
850	ENDDO
851	ENDDO
852	!
853	!-- Store initial profiles for output purposes etc.
854	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
855
856	IF ( constant_flux_layer ) THEN
857	ol = ( zu(nzb+1) - zw(nzb) ) / ( rif1d(nzb+1) + 1.0E-20_wp )
858	ts = 0.0_wp ! could actually be computed more accurately in the
859	! 1D model. Update when opportunity arises.
860	us = us1d
861	usws = usws1d
862	vsws = vsws1d
863	ELSE
864	ts = 0.0_wp ! must be set, because used in
865	ol = ( zu(nzb+1) - zw(nzb) ) / zeta_min ! flowste
866	us = 0.0_wp
867	usws = 0.0_wp
868	vsws = 0.0_wp
869	ENDIF
870
871	ELSE
872	e = 0.0_wp ! must be set, because used in
873	ol = ( zu(nzb+1) - zw(nzb) ) / zeta_min ! flowste
874	ts = 0.0_wp
875	us = 0.0_wp
876	usws = 0.0_wp
877	vsws = 0.0_wp
878	ENDIF
879	uswst = top_momentumflux_u
880	vswst = top_momentumflux_v
881
882	!
883	!-- In every case qs = 0.0 (see also pt)
884	!-- This could actually be computed more accurately in the 1D model.
885	!-- Update when opportunity arises!
886	IF ( humidity ) THEN
887	qs = 0.0_wp
888	IF ( cloud_physics .AND. microphysics_seifert ) THEN
889	qrs = 0.0_wp
890	nrs = 0.0_wp
891	ENDIF
892	ENDIF
893	!
894	!-- Initialize scaling parameter for passive scalar
895	IF ( passive_scalar ) ss = 0.0_wp
896
897	!
898	!-- Inside buildings set velocities back to zero
899	IF ( topography /= 'flat' ) THEN
900	DO i = nxlg, nxrg
901	DO j = nysg, nyng
902	u(nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
903	v(nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
904	ENDDO
905	ENDDO
906
907	!
908	!-- WARNING: The extra boundary conditions set after running the
909	!-- ------- 1D model impose an error on the divergence one layer
910	!-- below the topography; need to correct later
911	!-- ATTENTION: Provisional correction for Piacsek & Williams
912	!-- --------- advection scheme: keep u and v zero one layer below
913	!-- the topography.
914	IF ( ibc_uv_b == 1 ) THEN
915	!
916	!-- Neumann condition
917	DO i = nxl-1, nxr+1
918	DO j = nys-1, nyn+1
919	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
920	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
921	ENDDO
922	ENDDO
923
924	ENDIF
925
926	ENDIF
927
928	CALL location_message( 'finished', .TRUE. )
929
930	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
931	THEN
932
933	CALL location_message( 'initializing with constant profiles', .FALSE. )
934	!
935	!-- Overwrite initial profiles in case of nudging
936	IF ( nudging ) THEN
937	pt_init = ptnudge(:,1)
938	u_init = unudge(:,1)
939	v_init = vnudge(:,1)
940	IF ( humidity ) THEN ! is passive_scalar correct???
941	q_init = qnudge(:,1)
942	ENDIF
943
944	WRITE( message_string, * ) 'Initial profiles of u, v and ', &
945	'scalars from NUDGING_DATA are used.'
946	CALL message( 'init_3d_model', 'PA0370', 0, 0, 0, 6, 0 )
947	ENDIF
948
949	!
950	!-- Use constructed initial profiles (velocity constant with height,
951	!-- temperature profile with constant gradient)
952	DO i = nxlg, nxrg
953	DO j = nysg, nyng
954	pt(:,j,i) = pt_init
955	u(:,j,i) = u_init
956	v(:,j,i) = v_init
957	ENDDO
958	ENDDO
959
960	!
961	!-- Set initial horizontal velocities at the lowest computational grid
962	!-- levels to zero in order to avoid too small time steps caused by the
963	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
964	!-- in the limiting formula!).
965	IF ( ibc_uv_b /= 1 ) THEN
966	DO i = nxlg, nxrg
967	DO j = nysg, nyng
968	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0_wp
969	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0_wp
970	ENDDO
971	ENDDO
972	ENDIF
973
974	IF ( humidity ) THEN
975	DO i = nxlg, nxrg
976	DO j = nysg, nyng
977	q(:,j,i) = q_init
978	ENDDO
979	ENDDO
980	IF ( cloud_physics .AND. microphysics_seifert ) THEN
981
982	DO i = nxlg, nxrg
983	DO j = nysg, nyng
984	qr(:,j,i) = 0.0_wp
985	nr(:,j,i) = 0.0_wp
986	ENDDO
987	ENDDO
988
989	ENDIF
990	ENDIF
991
992	IF ( passive_scalar ) THEN
993	DO i = nxlg, nxrg
994	DO j = nysg, nyng
995	s(:,j,i) = s_init
996	ENDDO
997	ENDDO
998	ENDIF
999
1000	IF ( ocean ) THEN
1001	DO i = nxlg, nxrg
1002	DO j = nysg, nyng
1003	sa(:,j,i) = sa_init
1004	ENDDO
1005	ENDDO
1006	ENDIF
1007
1008	IF ( constant_diffusion ) THEN
1009	km = km_constant
1010	kh = km / prandtl_number
1011	e = 0.0_wp
1012	ELSEIF ( e_init > 0.0_wp ) THEN
1013	DO k = nzb+1, nzt
1014	km(k,:,:) = 0.1_wp * l_grid(k) * SQRT( e_init )
1015	ENDDO
1016	km(nzb,:,:) = km(nzb+1,:,:)
1017	km(nzt+1,:,:) = km(nzt,:,:)
1018	kh = km / prandtl_number
1019	e = e_init
1020	ELSE
1021	IF ( .NOT. ocean ) THEN
1022	kh = 0.01_wp ! there must exist an initial diffusion, because
1023	km = 0.01_wp ! otherwise no TKE would be produced by the
1024	! production terms, as long as not yet
1025	! e = (u/cm)*2 at k=nzb+1
1026	ELSE
1027	kh = 0.00001_wp
1028	km = 0.00001_wp
1029	ENDIF
1030	e = 0.0_wp
1031	ENDIF
1032	ol = ( zu(nzb+1) - zw(nzb) ) / zeta_min
1033	ts = 0.0_wp
1034	!
1035	!-- Very small number is required for calculation of Obukhov length
1036	!-- at first timestep
1037	us = 1E-30_wp
1038	usws = 0.0_wp
1039	uswst = top_momentumflux_u
1040	vsws = 0.0_wp
1041	vswst = top_momentumflux_v
1042	IF ( humidity ) qs = 0.0_wp
1043	IF ( passive_scalar ) ss = 0.0_wp
1044
1045	!
1046	!-- Compute initial temperature field and other constants used in case
1047	!-- of a sloping surface
1048	IF ( sloping_surface ) CALL init_slope
1049
1050	CALL location_message( 'finished', .TRUE. )
1051
1052	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
1053	THEN
1054
1055	CALL location_message( 'initializing by user', .FALSE. )
1056	!
1057	!-- Initialization will completely be done by the user
1058	CALL user_init_3d_model
1059
1060	CALL location_message( 'finished', .TRUE. )
1061
1062	ENDIF
1063
1064	CALL location_message( 'initializing statistics, boundary conditions, etc.', &
1065	.FALSE. )
1066
1067	!
1068	!-- Bottom boundary
1069	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
1070	u(nzb,:,:) = 0.0_wp
1071	v(nzb,:,:) = 0.0_wp
1072	ENDIF
1073
1074	!
1075	!-- Apply channel flow boundary condition
1076	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
1077	u(nzt+1,:,:) = 0.0_wp
1078	v(nzt+1,:,:) = 0.0_wp
1079	ENDIF
1080
1081	!
1082	!-- Calculate virtual potential temperature
1083	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
1084
1085	!
1086	!-- Store initial profiles for output purposes etc.
1087	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
1088	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
1089	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
1090	hom(nzb,1,5,:) = 0.0_wp
1091	hom(nzb,1,6,:) = 0.0_wp
1092	ENDIF
1093	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
1094	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
1095	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
1096
1097	IF ( ocean ) THEN
1098	!
1099	!-- Store initial salinity profile
1100	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
1101	ENDIF
1102
1103	IF ( humidity ) THEN
1104	!
1105	!-- Store initial profile of total water content, virtual potential
1106	!-- temperature
1107	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
1108	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
1109	IF ( cloud_physics .OR. cloud_droplets ) THEN
1110	!
1111	!-- Store initial profile of specific humidity and potential
1112	!-- temperature
1113	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
1114	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
1115	ENDIF
1116	ENDIF
1117
1118	IF ( passive_scalar ) THEN
1119	!
1120	!-- Store initial scalar profile
1121	hom(:,1,115,:) = SPREAD( s(:,nys,nxl), 2, statistic_regions+1 )
1122	ENDIF
1123
1124	!
1125	!-- Initialize the random number generators (from numerical recipes)
1126	CALL random_function_ini
1127
1128	IF ( random_generator == 'random-parallel' ) THEN
1129	!-- Asigning an ID to every vertical gridpoint column
1130	!-- dependig on the ensemble run number.
1131	random_dummy=1
1132	DO j=0,ny
1133	DO i=0,nx
1134	id_random_array(j,i) = random_dummy + 1E6 &
1135	* ( ensemble_member_nr - 1000 )
1136	random_dummy = random_dummy + 1
1137	END DO
1138	ENDDO
1139	!-- Initializing with random_seed_parallel for every vertical
1140	!-- gridpoint column.
1141	random_dummy=0
1142	DO j = nysg, nyng
1143	DO i = nxlg, nxrg
1144	CALL random_seed_parallel (random_sequence=id_random_array(j, i))
1145	CALL random_number_parallel (random_dummy)
1146	CALL random_seed_parallel (get=seq_random_array(:, j, i))
1147	END DO
1148	ENDDO
1149	ENDIF
1150
1151	!
1152	!-- Initialize fluxes at bottom surface
1153	IF ( use_surface_fluxes ) THEN
1154
1155	IF ( constant_heatflux ) THEN
1156	!
1157	!-- Heat flux is prescribed
1158	IF ( random_heatflux ) THEN
1159	CALL disturb_heatflux
1160	ELSE
1161	shf = surface_heatflux
1162	!
1163	!-- Initialize shf with data from external file LSF_DATA
1164	IF ( large_scale_forcing .AND. lsf_surf ) THEN
1165	CALL ls_forcing_surf ( simulated_time )
1166	ENDIF
1167
1168	!
1169	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
1170	IF ( TRIM( topography ) /= 'flat' ) THEN
1171	DO i = nxlg, nxrg
1172	DO j = nysg, nyng
1173	IF ( nzb_s_inner(j,i) /= 0 ) THEN
1174	shf(j,i) = wall_heatflux(0)
1175	ENDIF
1176	ENDDO
1177	ENDDO
1178	ENDIF
1179	ENDIF
1180	ENDIF
1181
1182	!
1183	!-- Determine the near-surface water flux
1184	IF ( humidity ) THEN
1185	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1186	qrsws = 0.0_wp
1187	nrsws = 0.0_wp
1188	ENDIF
1189	IF ( constant_waterflux ) THEN
1190	qsws = surface_waterflux
1191	!
1192	!-- Over topography surface_waterflux is replaced by
1193	!-- wall_humidityflux(0)
1194	IF ( TRIM( topography ) /= 'flat' ) THEN
1195	wall_qflux = wall_humidityflux
1196	DO i = nxlg, nxrg
1197	DO j = nysg, nyng
1198	IF ( nzb_s_inner(j,i) /= 0 ) THEN
1199	qsws(j,i) = wall_qflux(0)
1200	ENDIF
1201	ENDDO
1202	ENDDO
1203	ENDIF
1204	ENDIF
1205	ENDIF
1206	!
1207	!-- Initialize the near-surface scalar flux
1208	IF ( passive_scalar ) THEN
1209	IF ( constant_scalarflux ) THEN
1210	ssws = surface_scalarflux
1211	!
1212	!-- Over topography surface_scalarflux is replaced by
1213	!-- wall_scalarflux(0)
1214	IF ( TRIM( topography ) /= 'flat' ) THEN
1215	wall_sflux = wall_scalarflux
1216	DO i = nxlg, nxrg
1217	DO j = nysg, nyng
1218	IF ( nzb_s_inner(j,i) /= 0 ) ssws(j,i) = wall_sflux(0)
1219	ENDDO
1220	ENDDO
1221	ENDIF
1222	ENDIF
1223	ENDIF
1224	!
1225	!-- Initialize near-surface salinity flux
1226	IF ( ocean ) saswsb = bottom_salinityflux
1227
1228	ENDIF
1229
1230	!
1231	!-- Initialize fluxes at top surface
1232	!-- Currently, only the heatflux and salinity flux can be prescribed.
1233	!-- The latent flux is zero in this case!
1234	IF ( use_top_fluxes ) THEN
1235	!
1236	!-- Prescribe to heat flux
1237	IF ( constant_top_heatflux ) tswst = top_heatflux
1238	!
1239	!-- Prescribe zero latent flux at the top
1240	IF ( humidity ) THEN
1241	qswst = 0.0_wp
1242	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1243	nrswst = 0.0_wp
1244	qrswst = 0.0_wp
1245	ENDIF
1246	ENDIF
1247	!
1248	!-- Prescribe top scalar flux
1249	IF ( passive_scalar .AND. constant_top_scalarflux ) &
1250	sswst = top_scalarflux
1251	!
1252	!-- Prescribe top salinity flux
1253	IF ( ocean .AND. constant_top_salinityflux) &
1254	saswst = top_salinityflux
1255	!
1256	!-- Initialization in case of a coupled model run
1257	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
1258	tswst = 0.0_wp
1259	ENDIF
1260
1261	ENDIF
1262
1263	!
1264	!-- Initialize Prandtl layer quantities
1265	IF ( constant_flux_layer ) THEN
1266
1267	z0 = roughness_length
1268	z0h = z0h_factor * z0
1269	z0q = z0h_factor * z0
1270
1271	IF ( .NOT. constant_heatflux ) THEN
1272	!
1273	!-- Surface temperature is prescribed. Here the heat flux cannot be
1274	!-- simply estimated, because therefore ol, u* and theta* would have
1275	!-- to be computed by iteration. This is why the heat flux is assumed
1276	!-- to be zero before the first time step. It approaches its correct
1277	!-- value in the course of the first few time steps.
1278	shf = 0.0_wp
1279	ENDIF
1280
1281	IF ( humidity ) THEN
1282	IF ( .NOT. constant_waterflux ) qsws = 0.0_wp
1283	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1284	qrsws = 0.0_wp
1285	nrsws = 0.0_wp
1286	ENDIF
1287	ENDIF
1288	IF ( passive_scalar .AND. .NOT. constant_scalarflux ) ssws = 0.0_wp
1289
1290	ENDIF
1291
1292	!
1293	!-- Set the reference state to be used in the buoyancy terms (for ocean runs
1294	!-- the reference state will be set (overwritten) in init_ocean)
1295	IF ( use_single_reference_value ) THEN
1296	IF ( .NOT. humidity ) THEN
1297	ref_state(:) = pt_reference
1298	ELSE
1299	ref_state(:) = vpt_reference
1300	ENDIF
1301	ELSE
1302	IF ( .NOT. humidity ) THEN
1303	ref_state(:) = pt_init(:)
1304	ELSE
1305	ref_state(:) = vpt(:,nys,nxl)
1306	ENDIF
1307	ENDIF
1308
1309	!
1310	!-- For the moment, vertical velocity is zero
1311	w = 0.0_wp
1312
1313	!
1314	!-- Initialize array sums (must be defined in first call of pres)
1315	sums = 0.0_wp
1316
1317	!
1318	!-- In case of iterative solvers, p must get an initial value
1319	IF ( psolver(1:9) == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
1320
1321	!
1322	!-- Treating cloud physics, liquid water content and precipitation amount
1323	!-- are zero at beginning of the simulation
1324	IF ( cloud_physics ) THEN
1325	ql = 0.0_wp
1326	qc = 0.0_wp
1327
1328	precipitation_amount = 0.0_wp
1329	ENDIF
1330	!
1331	!-- Impose vortex with vertical axis on the initial velocity profile
1332	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
1333	CALL init_rankine
1334	ENDIF
1335
1336	!
1337	!-- Impose temperature anomaly (advection test only)
1338	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
1339	CALL init_pt_anomaly
1340	ENDIF
1341
1342	!
1343	!-- If required, change the surface temperature at the start of the 3D run
1344	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
1345	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
1346	ENDIF
1347
1348	!
1349	!-- If required, change the surface humidity/scalar at the start of the 3D
1350	!-- run
1351	IF ( humidity .AND. q_surface_initial_change /= 0.0_wp ) &
1352	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
1353
1354	IF ( passive_scalar .AND. s_surface_initial_change /= 0.0_wp ) &
1355	s(nzb,:,:) = s(nzb,:,:) + s_surface_initial_change
1356
1357
1358	!
1359	!-- Initialize old and new time levels.
1360	te_m = 0.0_wp; tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
1361	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1362
1363	IF ( humidity ) THEN
1364	tq_m = 0.0_wp
1365	q_p = q
1366	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1367	tqr_m = 0.0_wp
1368	qr_p = qr
1369	tnr_m = 0.0_wp
1370	nr_p = nr
1371	ENDIF
1372	ENDIF
1373
1374	IF ( passive_scalar ) THEN
1375	ts_m = 0.0_wp
1376	s_p = s
1377	ENDIF
1378
1379	IF ( ocean ) THEN
1380	tsa_m = 0.0_wp
1381	sa_p = sa
1382	ENDIF
1383
1384	CALL location_message( 'finished', .TRUE. )
1385
1386	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
1387	TRIM( initializing_actions ) == 'cyclic_fill' ) &
1388	THEN
1389
1390	CALL location_message( 'initializing in case of restart / cyclic_fill', &
1391	.FALSE. )
1392	!
1393	!-- When reading data for cyclic fill of 3D prerun data files, read
1394	!-- some of the global variables from the restart file which are required
1395	!-- for initializing the inflow
1396	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1397
1398	DO i = 0, io_blocks-1
1399	IF ( i == io_group ) THEN
1400	CALL read_parts_of_var_list
1401	CALL close_file( 13 )
1402	ENDIF
1403	#if defined( __parallel )
1404	CALL MPI_BARRIER( comm2d, ierr )
1405	#endif
1406	ENDDO
1407
1408	ENDIF
1409
1410	!
1411	!-- Read binary data from restart file
1412	DO i = 0, io_blocks-1
1413	IF ( i == io_group ) THEN
1414	CALL read_3d_binary
1415	ENDIF
1416	#if defined( __parallel )
1417	CALL MPI_BARRIER( comm2d, ierr )
1418	#endif
1419	ENDDO
1420
1421	!
1422	!-- Initialization of the turbulence recycling method
1423	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1424	turbulent_inflow ) THEN
1425	!
1426	!-- First store the profiles to be used at the inflow.
1427	!-- These profiles are the (temporally) and horizontally averaged vertical
1428	!-- profiles from the prerun. Alternatively, prescribed profiles
1429	!-- for u,v-components can be used.
1430	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,7) )
1431
1432	IF ( use_prescribed_profile_data ) THEN
1433	mean_inflow_profiles(:,1) = u_init ! u
1434	mean_inflow_profiles(:,2) = v_init ! v
1435	ELSE
1436	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
1437	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
1438	ENDIF
1439	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
1440	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
1441	IF ( humidity ) &
1442	mean_inflow_profiles(:,6) = hom_sum(:,41,0) ! q
1443	IF ( passive_scalar ) &
1444	mean_inflow_profiles(:,7) = hom_sum(:,115,0) ! s
1445
1446	!
1447	!-- If necessary, adjust the horizontal flow field to the prescribed
1448	!-- profiles
1449	IF ( use_prescribed_profile_data ) THEN
1450	DO i = nxlg, nxrg
1451	DO j = nysg, nyng
1452	DO k = nzb, nzt+1
1453	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
1454	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
1455	ENDDO
1456	ENDDO
1457	ENDDO
1458	ENDIF
1459
1460	!
1461	!-- Use these mean profiles at the inflow (provided that Dirichlet
1462	!-- conditions are used)
1463	IF ( inflow_l ) THEN
1464	DO j = nysg, nyng
1465	DO k = nzb, nzt+1
1466	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
1467	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
1468	w(k,j,nxlg:-1) = 0.0_wp
1469	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
1470	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
1471	IF ( humidity ) &
1472	q(k,j,nxlg:-1) = mean_inflow_profiles(k,6)
1473	IF ( passive_scalar ) &
1474	s(k,j,nxlg:-1) = mean_inflow_profiles(k,7)
1475	ENDDO
1476	ENDDO
1477	ENDIF
1478
1479	!
1480	!-- Calculate the damping factors to be used at the inflow. For a
1481	!-- turbulent inflow the turbulent fluctuations have to be limited
1482	!-- vertically because otherwise the turbulent inflow layer will grow
1483	!-- in time.
1484	IF ( inflow_damping_height == 9999999.9_wp ) THEN
1485	!
1486	!-- Default: use the inversion height calculated by the prerun; if
1487	!-- this is zero, inflow_damping_height must be explicitly
1488	!-- specified.
1489	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
1490	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
1491	ELSE
1492	WRITE( message_string, * ) 'inflow_damping_height must be ', &
1493	'explicitly specified because&the inversion height ', &
1494	'calculated by the prerun is zero.'
1495	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
1496	ENDIF
1497
1498	ENDIF
1499
1500	IF ( inflow_damping_width == 9999999.9_wp ) THEN
1501	!
1502	!-- Default for the transition range: one tenth of the undamped
1503	!-- layer
1504	inflow_damping_width = 0.1_wp * inflow_damping_height
1505
1506	ENDIF
1507
1508	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
1509
1510	DO k = nzb, nzt+1
1511
1512	IF ( zu(k) <= inflow_damping_height ) THEN
1513	inflow_damping_factor(k) = 1.0_wp
1514	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
1515	inflow_damping_factor(k) = 1.0_wp - &
1516	( zu(k) - inflow_damping_height ) / &
1517	inflow_damping_width
1518	ELSE
1519	inflow_damping_factor(k) = 0.0_wp
1520	ENDIF
1521
1522	ENDDO
1523
1524	ENDIF
1525
1526	!
1527	!-- Inside buildings set velocities and TKE back to zero
1528	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1529	topography /= 'flat' ) THEN
1530	!
1531	!-- Inside buildings set velocities and TKE back to zero.
1532	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
1533	!-- maybe revise later.
1534	DO i = nxlg, nxrg
1535	DO j = nysg, nyng
1536	u (nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
1537	v (nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
1538	w (nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1539	e (nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1540	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
1541	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
1542	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1543	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1544	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1545	ENDDO
1546	ENDDO
1547
1548	ENDIF
1549
1550	!
1551	!-- Calculate initial temperature field and other constants used in case
1552	!-- of a sloping surface
1553	IF ( sloping_surface ) CALL init_slope
1554
1555	!
1556	!-- Initialize new time levels (only done in order to set boundary values
1557	!-- including ghost points)
1558	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1559	IF ( humidity ) THEN
1560	q_p = q
1561	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1562	qr_p = qr
1563	nr_p = nr
1564	ENDIF
1565	ENDIF
1566	IF ( passive_scalar ) s_p = s
1567	IF ( ocean ) sa_p = sa
1568
1569	!
1570	!-- Allthough tendency arrays are set in prognostic_equations, they have
1571	!-- have to be predefined here because they are used (but multiplied with 0)
1572	!-- there before they are set.
1573	te_m = 0.0_wp; tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
1574	IF ( humidity ) THEN
1575	tq_m = 0.0_wp
1576	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1577	tqr_m = 0.0_wp
1578	tnr_m = 0.0_wp
1579	ENDIF
1580	ENDIF
1581	IF ( passive_scalar ) ts_m = 0.0_wp
1582	IF ( ocean ) tsa_m = 0.0_wp
1583
1584	CALL location_message( 'finished', .TRUE. )
1585
1586	ELSE
1587	!
1588	!-- Actually this part of the programm should not be reached
1589	message_string = 'unknown initializing problem'
1590	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
1591	ENDIF
1592
1593
1594	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1595	!
1596	!-- Initialize old timelevels needed for radiation boundary conditions
1597	IF ( outflow_l ) THEN
1598	u_m_l(:,:,:) = u(:,:,1:2)
1599	v_m_l(:,:,:) = v(:,:,0:1)
1600	w_m_l(:,:,:) = w(:,:,0:1)
1601	ENDIF
1602	IF ( outflow_r ) THEN
1603	u_m_r(:,:,:) = u(:,:,nx-1:nx)
1604	v_m_r(:,:,:) = v(:,:,nx-1:nx)
1605	w_m_r(:,:,:) = w(:,:,nx-1:nx)
1606	ENDIF
1607	IF ( outflow_s ) THEN
1608	u_m_s(:,:,:) = u(:,0:1,:)
1609	v_m_s(:,:,:) = v(:,1:2,:)
1610	w_m_s(:,:,:) = w(:,0:1,:)
1611	ENDIF
1612	IF ( outflow_n ) THEN
1613	u_m_n(:,:,:) = u(:,ny-1:ny,:)
1614	v_m_n(:,:,:) = v(:,ny-1:ny,:)
1615	w_m_n(:,:,:) = w(:,ny-1:ny,:)
1616	ENDIF
1617
1618	ENDIF
1619
1620	!
1621	!-- Calculate the initial volume flow at the right and north boundary
1622	IF ( conserve_volume_flow ) THEN
1623
1624	IF ( use_prescribed_profile_data ) THEN
1625
1626	volume_flow_initial_l = 0.0_wp
1627	volume_flow_area_l = 0.0_wp
1628
1629	IF ( nxr == nx ) THEN
1630	DO j = nys, nyn
1631	DO k = nzb_u_inner(j,nx)+1, nzt
1632	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1633	u_init(k) * dzw(k)
1634	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1635	ENDDO
1636	ENDDO
1637	ENDIF
1638
1639	IF ( nyn == ny ) THEN
1640	DO i = nxl, nxr
1641	DO k = nzb_v_inner(ny,i)+1, nzt
1642	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1643	v_init(k) * dzw(k)
1644	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1645	ENDDO
1646	ENDDO
1647	ENDIF
1648
1649	#if defined( __parallel )
1650	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1651	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1652	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1653	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1654
1655	#else
1656	volume_flow_initial = volume_flow_initial_l
1657	volume_flow_area = volume_flow_area_l
1658	#endif
1659
1660	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1661
1662	volume_flow_initial_l = 0.0_wp
1663	volume_flow_area_l = 0.0_wp
1664
1665	IF ( nxr == nx ) THEN
1666	DO j = nys, nyn
1667	DO k = nzb_u_inner(j,nx)+1, nzt
1668	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1669	hom_sum(k,1,0) * dzw(k)
1670	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1671	ENDDO
1672	ENDDO
1673	ENDIF
1674
1675	IF ( nyn == ny ) THEN
1676	DO i = nxl, nxr
1677	DO k = nzb_v_inner(ny,i)+1, nzt
1678	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1679	hom_sum(k,2,0) * dzw(k)
1680	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1681	ENDDO
1682	ENDDO
1683	ENDIF
1684
1685	#if defined( __parallel )
1686	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1687	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1688	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1689	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1690
1691	#else
1692	volume_flow_initial = volume_flow_initial_l
1693	volume_flow_area = volume_flow_area_l
1694	#endif
1695
1696	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1697
1698	volume_flow_initial_l = 0.0_wp
1699	volume_flow_area_l = 0.0_wp
1700
1701	IF ( nxr == nx ) THEN
1702	DO j = nys, nyn
1703	DO k = nzb_u_inner(j,nx)+1, nzt
1704	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1705	u(k,j,nx) * dzw(k)
1706	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1707	ENDDO
1708	ENDDO
1709	ENDIF
1710
1711	IF ( nyn == ny ) THEN
1712	DO i = nxl, nxr
1713	DO k = nzb_v_inner(ny,i)+1, nzt
1714	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1715	v(k,ny,i) * dzw(k)
1716	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1717	ENDDO
1718	ENDDO
1719	ENDIF
1720
1721	#if defined( __parallel )
1722	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1723	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1724	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1725	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1726
1727	#else
1728	volume_flow_initial = volume_flow_initial_l
1729	volume_flow_area = volume_flow_area_l
1730	#endif
1731
1732	ENDIF
1733
1734	!
1735	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
1736	!-- from u\|v_bulk instead
1737	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
1738	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
1739	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
1740	ENDIF
1741
1742	ENDIF
1743
1744	!
1745	!-- Initialize quantities for special advections schemes
1746	CALL init_advec
1747
1748	!
1749	!-- Impose random perturbation on the horizontal velocity field and then
1750	!-- remove the divergences from the velocity field at the initial stage
1751	IF ( create_disturbances .AND. disturbance_energy_limit /= 0.0_wp .AND. &
1752	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1753	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1754
1755	CALL location_message( 'creating initial disturbances', .FALSE. )
1756	CALL disturb_field( nzb_u_inner, tend, u )
1757	CALL disturb_field( nzb_v_inner, tend, v )
1758	CALL location_message( 'finished', .TRUE. )
1759
1760	CALL location_message( 'calling pressure solver', .FALSE. )
1761	n_sor = nsor_ini
1762	!$acc data copyin( d, ddzu, ddzw, nzb_s_inner, nzb_u_inner ) &
1763	!$acc copyin( nzb_v_inner, nzb_w_inner, p, rflags_s_inner, tend ) &
1764	!$acc copyin( weight_pres, weight_substep ) &
1765	!$acc copy( tri, tric, u, v, w )
1766	CALL pres
1767	!$acc end data
1768	n_sor = nsor
1769	CALL location_message( 'finished', .TRUE. )
1770
1771	ENDIF
1772
1773	!
1774	!-- If required, initialize quantities needed for the plant canopy model
1775	IF ( plant_canopy ) THEN
1776	CALL location_message( 'initializing plant canopy model', .FALSE. )
1777	CALL pcm_init
1778	CALL location_message( 'finished', .TRUE. )
1779	ENDIF
1780
1781	!
1782	!-- If required, initialize dvrp-software
1783	IF ( dt_dvrp /= 9999999.9_wp ) CALL init_dvrp
1784
1785	IF ( ocean ) THEN
1786	!
1787	!-- Initialize quantities needed for the ocean model
1788	CALL init_ocean
1789
1790	ELSE
1791	!
1792	!-- Initialize quantities for handling cloud physics
1793	!-- This routine must be called before lpm_init, because
1794	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
1795	!-- lpm_init) is not defined.
1796	CALL init_cloud_physics
1797	!
1798	!-- Initialize bulk cloud microphysics
1799	CALL microphysics_init
1800	ENDIF
1801
1802	!
1803	!-- If required, initialize particles
1804	IF ( particle_advection ) CALL lpm_init
1805
1806	!
1807	!-- If required, initialize quantities needed for the LSM
1808	IF ( land_surface ) THEN
1809	CALL location_message( 'initializing land surface model', .FALSE. )
1810	CALL lsm_init
1811	CALL location_message( 'finished', .TRUE. )
1812	ENDIF
1813
1814	!
1815	!-- Initialize surface layer (done after LSM as roughness length are required
1816	!-- for initialization
1817	IF ( constant_flux_layer ) THEN
1818	CALL location_message( 'initializing surface layer', .FALSE. )
1819	CALL init_surface_layer_fluxes
1820	CALL location_message( 'finished', .TRUE. )
1821	ENDIF
1822
1823	!
1824	!-- If required, initialize radiation model
1825	IF ( radiation ) THEN
1826	CALL location_message( 'initializing radiation model', .FALSE. )
1827	CALL radiation_init
1828	CALL location_message( 'finished', .TRUE. )
1829	ENDIF
1830
1831	!
1832	!-- If required, initialize urban surface model
1833	IF ( urban_surface ) THEN
1834	CALL location_message( 'initializing urban surface model', .FALSE. )
1835	CALL usm_init_urban_surface
1836	CALL location_message( 'finished', .TRUE. )
1837	ENDIF
1838
1839	!
1840	!-- If required, initialize quantities needed for the wind turbine model
1841	IF ( wind_turbine ) THEN
1842	CALL location_message( 'initializing wind turbine model', .FALSE. )
1843	CALL wtm_init
1844	CALL location_message( 'finished', .TRUE. )
1845	ENDIF
1846
1847
1848	!
1849	!-- Initialize the ws-scheme.
1850	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
1851
1852	!
1853	!-- Setting weighting factors for calculation of perturbation pressure
1854	!-- and turbulent quantities from the RK substeps
1855	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
1856
1857	weight_substep(1) = 1._wp/6._wp
1858	weight_substep(2) = 3._wp/10._wp
1859	weight_substep(3) = 8._wp/15._wp
1860
1861	weight_pres(1) = 1._wp/3._wp
1862	weight_pres(2) = 5._wp/12._wp
1863	weight_pres(3) = 1._wp/4._wp
1864
1865	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
1866
1867	weight_substep(1) = 1._wp/2._wp
1868	weight_substep(2) = 1._wp/2._wp
1869
1870	weight_pres(1) = 1._wp/2._wp
1871	weight_pres(2) = 1._wp/2._wp
1872
1873	ELSE ! for Euler-method
1874
1875	weight_substep(1) = 1.0_wp
1876	weight_pres(1) = 1.0_wp
1877
1878	ENDIF
1879
1880	!
1881	!-- Initialize Rayleigh damping factors
1882	rdf = 0.0_wp
1883	rdf_sc = 0.0_wp
1884	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
1885	IF ( .NOT. ocean ) THEN
1886	DO k = nzb+1, nzt
1887	IF ( zu(k) >= rayleigh_damping_height ) THEN
1888	rdf(k) = rayleigh_damping_factor * &
1889	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
1890	/ ( zu(nzt) - rayleigh_damping_height ) ) &
1891	)**2
1892	ENDIF
1893	ENDDO
1894	ELSE
1895	DO k = nzt, nzb+1, -1
1896	IF ( zu(k) <= rayleigh_damping_height ) THEN
1897	rdf(k) = rayleigh_damping_factor * &
1898	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
1899	/ ( rayleigh_damping_height - zu(nzb+1) ) ) &
1900	)**2
1901	ENDIF
1902	ENDDO
1903	ENDIF
1904	ENDIF
1905	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
1906
1907	!
1908	!-- Initialize the starting level and the vertical smoothing factor used for
1909	!-- the external pressure gradient
1910	dp_smooth_factor = 1.0_wp
1911	IF ( dp_external ) THEN
1912	!
1913	!-- Set the starting level dp_level_ind_b only if it has not been set before
1914	!-- (e.g. in init_grid).
1915	IF ( dp_level_ind_b == 0 ) THEN
1916	ind_array = MINLOC( ABS( dp_level_b - zu ) )
1917	dp_level_ind_b = ind_array(1) - 1 + nzb
1918	! MINLOC uses lower array bound 1
1919	ENDIF
1920	IF ( dp_smooth ) THEN
1921	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
1922	DO k = dp_level_ind_b+1, nzt
1923	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
1924	( REAL( k - dp_level_ind_b, KIND=wp ) / &
1925	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
1926	ENDDO
1927	ENDIF
1928	ENDIF
1929
1930	!
1931	!-- Initialize damping zone for the potential temperature in case of
1932	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
1933	!-- at the inflow boundary and decreases to zero at pt_damping_width.
1934	ptdf_x = 0.0_wp
1935	ptdf_y = 0.0_wp
1936	IF ( bc_lr_dirrad ) THEN
1937	DO i = nxl, nxr
1938	IF ( ( i * dx ) < pt_damping_width ) THEN
1939	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
1940	REAL( pt_damping_width - i * dx, KIND=wp ) / ( &
1941	REAL( pt_damping_width, KIND=wp ) ) ) )**2
1942	ENDIF
1943	ENDDO
1944	ELSEIF ( bc_lr_raddir ) THEN
1945	DO i = nxl, nxr
1946	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
1947	ptdf_x(i) = pt_damping_factor * &
1948	SIN( pi * 0.5_wp * &
1949	( ( i - nx ) * dx + pt_damping_width ) / &
1950	REAL( pt_damping_width, KIND=wp ) )**2
1951	ENDIF
1952	ENDDO
1953	ELSEIF ( bc_ns_dirrad ) THEN
1954	DO j = nys, nyn
1955	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
1956	ptdf_y(j) = pt_damping_factor * &
1957	SIN( pi * 0.5_wp * &
1958	( ( j - ny ) * dy + pt_damping_width ) / &
1959	REAL( pt_damping_width, KIND=wp ) )**2
1960	ENDIF
1961	ENDDO
1962	ELSEIF ( bc_ns_raddir ) THEN
1963	DO j = nys, nyn
1964	IF ( ( j * dy ) < pt_damping_width ) THEN
1965	ptdf_y(j) = pt_damping_factor * &
1966	SIN( pi * 0.5_wp * &
1967	( pt_damping_width - j * dy ) / &
1968	REAL( pt_damping_width, KIND=wp ) )**2
1969	ENDIF
1970	ENDDO
1971	ENDIF
1972
1973	!
1974	!-- Pre-set masks for regional statistics. Default is the total model domain.
1975	!-- Ghost points are excluded because counting values at the ghost boundaries
1976	!-- would bias the statistics
1977	rmask = 1.0_wp
1978	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
1979	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
1980
1981	!
1982	!-- User-defined initializing actions. Check afterwards, if maximum number
1983	!-- of allowed timeseries is exceeded
1984	CALL user_init
1985
1986	IF ( dots_num > dots_max ) THEN
1987	WRITE( message_string, * ) 'number of time series quantities exceeds', &
1988	' its maximum of dots_max = ', dots_max, &
1989	' &Please increase dots_max in modules.f90.'
1990	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
1991	ENDIF
1992
1993	!
1994	!-- Input binary data file is not needed anymore. This line must be placed
1995	!-- after call of user_init!
1996	CALL close_file( 13 )
1997
1998	!
1999	!-- Compute total sum of active mask grid points
2000	!-- and the mean surface level height for each statistic region
2001	!-- ngp_2dh: number of grid points of a horizontal cross section through the
2002	!-- total domain
2003	!-- ngp_3d: number of grid points of the total domain
2004	ngp_2dh_outer_l = 0
2005	ngp_2dh_outer = 0
2006	ngp_2dh_s_inner_l = 0
2007	ngp_2dh_s_inner = 0
2008	ngp_2dh_l = 0
2009	ngp_2dh = 0
2010	ngp_3d_inner_l = 0.0_wp
2011	ngp_3d_inner = 0
2012	ngp_3d = 0
2013	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
2014
2015	mean_surface_level_height = 0.0_wp
2016	mean_surface_level_height_l = 0.0_wp
2017
2018	DO sr = 0, statistic_regions
2019	DO i = nxl, nxr
2020	DO j = nys, nyn
2021	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
2022	!
2023	!-- All xy-grid points
2024	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
2025	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) &
2026	+ zw(nzb_s_inner(j,i))
2027	!
2028	!-- xy-grid points above topography
2029	DO k = nzb_s_outer(j,i), nz + 1
2030	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
2031	ENDDO
2032	DO k = nzb_s_inner(j,i), nz + 1
2033	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
2034	ENDDO
2035	!
2036	!-- All grid points of the total domain above topography
2037	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) &
2038	+ ( nz - nzb_s_inner(j,i) + 2 )
2039	ENDIF
2040	ENDDO
2041	ENDDO
2042	ENDDO
2043
2044	sr = statistic_regions + 1
2045	#if defined( __parallel )
2046	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2047	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
2048	comm2d, ierr )
2049	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2050	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
2051	MPI_INTEGER, MPI_SUM, comm2d, ierr )
2052	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2053	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
2054	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
2055	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2056	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
2057	MPI_SUM, comm2d, ierr )
2058	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
2059	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2060	CALL MPI_ALLREDUCE( mean_surface_level_height_l(0), &
2061	mean_surface_level_height(0), sr, MPI_REAL, &
2062	MPI_SUM, comm2d, ierr )
2063	mean_surface_level_height = mean_surface_level_height / REAL( ngp_2dh )
2064	#else
2065	ngp_2dh = ngp_2dh_l
2066	ngp_2dh_outer = ngp_2dh_outer_l
2067	ngp_2dh_s_inner = ngp_2dh_s_inner_l
2068	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
2069	mean_surface_level_height = mean_surface_level_height_l / REAL( ngp_2dh_l )
2070	#endif
2071
2072	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
2073	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
2074
2075	!
2076	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
2077	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
2078	!-- the respective subdomain lie below the surface topography
2079	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
2080	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
2081	ngp_3d_inner(:) )
2082	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
2083
2084	DEALLOCATE( mean_surface_level_height_l, ngp_2dh_l, ngp_2dh_outer_l, &
2085	ngp_3d_inner_l, ngp_3d_inner_tmp )
2086
2087	CALL location_message( 'leaving init_3d_model', .TRUE. )
2088
2089	END SUBROUTINE init_3d_model

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