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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1958

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

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