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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1995

Last change on this file since 1995 was 1993, checked in by suehring, 8 years ago

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

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