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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1992

Last change on this file since 1992 was 1992, checked in by suehring, 8 years ago

Prescribing scalar flux at model top; several bugfixes concering data output of scalars and output of flight data

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

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