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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1957

Last change on this file since 1957 was 1957, checked in by suehring, 8 years ago

flight module added

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

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