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source: palm/trunk/SOURCE/init_3d_model.f90 @ 2638

Last change on this file since 2638 was 2618, checked in by suehring, 6 years ago

Reorder calls for initializing surface quantities and give example of user-defined initialization of surface quantities

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1	!> @file init_3d_model.f90
2	!------------------------------------------------------------------------------!
3	! This file is part of PALM.
4	!
5	! PALM is free software: you can redistribute it and/or modify it under the
6	! terms of the GNU General Public License as published by the Free Software
7	! Foundation, either version 3 of the License, or (at your option) any later
8	! version.
9	!
10	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
11	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
12	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
13	!
14	! You should have received a copy of the GNU General Public License along with
15	! PALM. If not, see <http://www.gnu.org/licenses/>.
16	!
17	! Copyright 1997-2017 Leibniz Universitaet Hannover
18	!------------------------------------------------------------------------------!
19	!
20	! Current revisions:
21	! ------------------
22	!
23	!
24	! Former revisions:
25	! -----------------
26	! $Id: init_3d_model.f90 2618 2017-11-16 15:37:30Z raasch $
27	! Reorder calls of init_surfaces.
28	!
29	! 2564 2017-10-19 15:56:56Z Giersch
30	! Variable wind_turbine was added to control_parameters.
31	!
32	! 2550 2017-10-16 17:12:01Z boeske
33	! Modifications to cyclic fill method and turbulence recycling method in case of
34	! complex terrain simulations
35	!
36	! 2513 2017-10-04 09:24:39Z kanani
37	! Bugfix in storing initial scalar profile (wrong index)
38	!
39	! 2350 2017-08-15 11:48:26Z kanani
40	! Bugfix in nopointer version
41	!
42	! 2339 2017-08-07 13:55:26Z gronemeier
43	! corrected timestamp in header
44	!
45	! 2338 2017-08-07 12:15:38Z gronemeier
46	! Modularize 1D model
47	!
48	! 2329 2017-08-03 14:24:56Z knoop
49	! Removed temporary bugfix (r2327) as bug is properly resolved by this revision
50	!
51	! 2327 2017-08-02 07:40:57Z maronga
52	! Temporary bugfix
53	!
54	! 2320 2017-07-21 12:47:43Z suehring
55	! Modularize large-scale forcing and nudging
56	!
57	! 2292 2017-06-20 09:51:42Z schwenkel
58	! Implementation of new microphysic scheme: cloud_scheme = 'morrison'
59	! includes two more prognostic equations for cloud drop concentration (nc)
60	! and cloud water content (qc).
61	!
62	! 2277 2017-06-12 10:47:51Z kanani
63	! Removed unused variable sums_up_fraction_l
64	!
65	! 2270 2017-06-09 12:18:47Z maronga
66	! dots_num must be increased when LSM and/or radiation is used
67	!
68	! 2259 2017-06-08 09:09:11Z gronemeier
69	! Implemented synthetic turbulence generator
70	!
71	! 2252 2017-06-07 09:35:37Z knoop
72	! rho_air now depending on surface_pressure even in Boussinesq mode
73	!
74	! 2233 2017-05-30 18:08:54Z suehring
75	!
76	! 2232 2017-05-30 17:47:52Z suehring
77	! Adjustments to new topography and surface concept:
78	! - Modify passed parameters for disturb_field
79	! - Topography representation via flags
80	! - Remove unused arrays.
81	! - Move initialization of surface-related quantities to surface_mod
82	!
83	! 2172 2017-03-08 15:55:25Z knoop
84	! Bugfix: moved parallel random generator initialization into its module
85	!
86	! 2118 2017-01-17 16:38:49Z raasch
87	! OpenACC directives removed
88	!
89	! 2037 2016-10-26 11:15:40Z knoop
90	! Anelastic approximation implemented
91	!
92	! 2031 2016-10-21 15:11:58Z knoop
93	! renamed variable rho to rho_ocean
94	!
95	! 2011 2016-09-19 17:29:57Z kanani
96	! Flag urban_surface is now defined in module control_parameters.
97	!
98	! 2007 2016-08-24 15:47:17Z kanani
99	! Added support for urban surface model,
100	! adjusted location_message in case of plant_canopy
101	!
102	! 2000 2016-08-20 18:09:15Z knoop
103	! Forced header and separation lines into 80 columns
104	!
105	! 1992 2016-08-12 15:14:59Z suehring
106	! Initializaton of scalarflux at model top
107	! Bugfixes in initialization of surface and top salinity flux, top scalar and
108	! humidity fluxes
109	!
110	! 1960 2016-07-12 16:34:24Z suehring
111	! Separate humidity and passive scalar
112	! Increase dimension for mean_inflow_profiles
113	! Remove inadvertent write-statement
114	! Bugfix, large-scale forcing is still not implemented for passive scalars
115	!
116	! 1957 2016-07-07 10:43:48Z suehring
117	! flight module added
118	!
119	! 1920 2016-05-30 10:50:15Z suehring
120	! Initialize us with very small number to avoid segmentation fault during
121	! calculation of Obukhov length
122	!
123	! 1918 2016-05-27 14:35:57Z raasch
124	! intermediate_timestep_count is set 0 instead 1 for first call of pres,
125	! bugfix: initialization of local sum arrays are moved to the beginning of the
126	! routine because otherwise results from pres are overwritten
127	!
128	! 1914 2016-05-26 14:44:07Z witha
129	! Added initialization of the wind turbine model
130	!
131	! 1878 2016-04-19 12:30:36Z hellstea
132	! The zeroth element of weight_pres removed as unnecessary
133	!
134	! 1849 2016-04-08 11:33:18Z hoffmann
135	! Adapted for modularization of microphysics.
136	! precipitation_amount, precipitation_rate, prr moved to arrays_3d.
137	! Initialization of nc_1d, nr_1d, pt_1d, qc_1d, qr_1d, q_1d moved to
138	! microphysics_init.
139	!
140	! 1845 2016-04-08 08:29:13Z raasch
141	! nzb_2d replaced by nzb_u\|v_inner
142	!
143	! 1833 2016-04-07 14:23:03Z raasch
144	! initialization of spectra quantities moved to spectra_mod
145	!
146	! 1831 2016-04-07 13:15:51Z hoffmann
147	! turbulence renamed collision_turbulence
148	!
149	! 1826 2016-04-07 12:01:39Z maronga
150	! Renamed radiation calls.
151	! Renamed canopy model calls.
152	!
153	! 1822 2016-04-07 07:49:42Z hoffmann
154	! icloud_scheme replaced by microphysics_*
155	!
156	! 1817 2016-04-06 15:44:20Z maronga
157	! Renamed lsm calls.
158	!
159	! 1815 2016-04-06 13:49:59Z raasch
160	! zero-settings for velocities inside topography re-activated (was deactivated
161	! in r1762)
162	!
163	! 1788 2016-03-10 11:01:04Z maronga
164	! Added z0q.
165	! Syntax layout improved.
166	!
167	! 1783 2016-03-06 18:36:17Z raasch
168	! netcdf module name changed + related changes
169	!
170	! 1764 2016-02-28 12:45:19Z raasch
171	! bugfix: increase size of volume_flow_area_l and volume_flow_initial_l by 1
172	!
173	! 1762 2016-02-25 12:31:13Z hellstea
174	! Introduction of nested domain feature
175	!
176	! 1738 2015-12-18 13:56:05Z raasch
177	! calculate mean surface level height for each statistic region
178	!
179	! 1734 2015-12-02 12:17:12Z raasch
180	! no initial disturbances in case that the disturbance energy limit has been
181	! set zero
182	!
183	! 1707 2015-11-02 15:24:52Z maronga
184	! Bugfix: transfer of Richardson number from 1D model to Obukhov length caused
185	! devision by zero in neutral stratification
186	!
187	! 1691 2015-10-26 16:17:44Z maronga
188	! Call to init_surface_layer added. rif is replaced by ol and zeta.
189	!
190	! 1682 2015-10-07 23:56:08Z knoop
191	! Code annotations made doxygen readable
192	!
193	! 1615 2015-07-08 18:49:19Z suehring
194	! Enable turbulent inflow for passive_scalar and humidity
195	!
196	! 1585 2015-04-30 07:05:52Z maronga
197	! Initialization of radiation code is now done after LSM initializtion
198	!
199	! 1575 2015-03-27 09:56:27Z raasch
200	! adjustments for psolver-queries
201	!
202	! 1551 2015-03-03 14:18:16Z maronga
203	! Allocation of land surface arrays is now done in the subroutine lsm_init_arrays,
204	! which is part of land_surface_model.
205	!
206	! 1507 2014-12-10 12:14:18Z suehring
207	! Bugfix: set horizontal velocity components to zero inside topography
208	!
209	! 1496 2014-12-02 17:25:50Z maronga
210	! Added initialization of the land surface and radiation schemes
211	!
212	! 1484 2014-10-21 10:53:05Z kanani
213	! Changes due to new module structure of the plant canopy model:
214	! canopy-related initialization (e.g. lad and canopy_heat_flux) moved to new
215	! subroutine init_plant_canopy within the module plant_canopy_model_mod,
216	! call of subroutine init_plant_canopy added.
217	!
218	! 1431 2014-07-15 14:47:17Z suehring
219	! var_d added, in order to normalize spectra.
220	!
221	! 1429 2014-07-15 12:53:45Z knoop
222	! Ensemble run capability added to parallel random number generator
223	!
224	! 1411 2014-05-16 18:01:51Z suehring
225	! Initial horizontal velocity profiles were not set to zero at the first vertical
226	! grid level in case of non-cyclic lateral boundary conditions.
227	!
228	! 1406 2014-05-16 13:47:01Z raasch
229	! bugfix: setting of initial velocities at k=1 to zero not in case of a
230	! no-slip boundary condition for uv
231	!
232	! 1402 2014-05-09 14:25:13Z raasch
233	! location messages modified
234	!
235	! 1400 2014-05-09 14:03:54Z knoop
236	! Parallel random number generator added
237	!
238	! 1384 2014-05-02 14:31:06Z raasch
239	! location messages added
240	!
241	! 1361 2014-04-16 15:17:48Z hoffmann
242	! tend_* removed
243	! Bugfix: w_subs is not allocated anymore if it is already allocated
244	!
245	! 1359 2014-04-11 17:15:14Z hoffmann
246	! module lpm_init_mod added to use statements, because lpm_init has become a
247	! module
248	!
249	! 1353 2014-04-08 15:21:23Z heinze
250	! REAL constants provided with KIND-attribute
251	!
252	! 1340 2014-03-25 19:45:13Z kanani
253	! REAL constants defined as wp-kind
254	!
255	! 1322 2014-03-20 16:38:49Z raasch
256	! REAL constants defined as wp-kind
257	! module interfaces removed
258	!
259	! 1320 2014-03-20 08:40:49Z raasch
260	! ONLY-attribute added to USE-statements,
261	! kind-parameters added to all INTEGER and REAL declaration statements,
262	! kinds are defined in new module kinds,
263	! revision history before 2012 removed,
264	! comment fields (!:) to be used for variable explanations added to
265	! all variable declaration statements
266	!
267	! 1316 2014-03-17 07:44:59Z heinze
268	! Bugfix: allocation of w_subs
269	!
270	! 1299 2014-03-06 13:15:21Z heinze
271	! Allocate w_subs due to extension of large scale subsidence in combination
272	! with large scale forcing data (LSF_DATA)
273	!
274	! 1241 2013-10-30 11:36:58Z heinze
275	! Overwrite initial profiles in case of nudging
276	! Inititialize shf and qsws in case of large_scale_forcing
277	!
278	! 1221 2013-09-10 08:59:13Z raasch
279	! +rflags_s_inner in copyin statement, use copyin for most arrays instead of
280	! copy
281	!
282	! 1212 2013-08-15 08:46:27Z raasch
283	! array tri is allocated and included in data copy statement
284	!
285	! 1195 2013-07-01 12:27:57Z heinze
286	! Bugfix: move allocation of ref_state to parin.f90 and read_var_list.f90
287	!
288	! 1179 2013-06-14 05:57:58Z raasch
289	! allocate and set ref_state to be used in buoyancy terms
290	!
291	! 1171 2013-05-30 11:27:45Z raasch
292	! diss array is allocated with full size if accelerator boards are used
293	!
294	! 1159 2013-05-21 11:58:22Z fricke
295	! -bc_lr_dirneu, bc_lr_neudir, bc_ns_dirneu, bc_ns_neudir
296	!
297	! 1153 2013-05-10 14:33:08Z raasch
298	! diss array is allocated with dummy elements even if it is not needed
299	! (required by PGI 13.4 / CUDA 5.0)
300	!
301	! 1115 2013-03-26 18:16:16Z hoffmann
302	! unused variables removed
303	!
304	! 1113 2013-03-10 02:48:14Z raasch
305	! openACC directive modified
306	!
307	! 1111 2013-03-08 23:54:10Z raasch
308	! openACC directives added for pres
309	! array diss allocated only if required
310	!
311	! 1092 2013-02-02 11:24:22Z raasch
312	! unused variables removed
313	!
314	! 1065 2012-11-22 17:42:36Z hoffmann
315	! allocation of diss (dissipation rate) in case of turbulence = .TRUE. added
316	!
317	! 1053 2012-11-13 17:11:03Z hoffmann
318	! allocation and initialisation of necessary data arrays for the two-moment
319	! cloud physics scheme the two new prognostic equations (nr, qr):
320	! +dr, lambda_r, mu_r, sed_, xr, s, sws, swst, , _p, t_m, _1, _2, _3,
321	! +tend_*, prr
322	!
323	! 1036 2012-10-22 13:43:42Z raasch
324	! code put under GPL (PALM 3.9)
325	!
326	! 1032 2012-10-21 13:03:21Z letzel
327	! save memory by not allocating pt_2 in case of neutral = .T.
328	!
329	! 1025 2012-10-07 16:04:41Z letzel
330	! bugfix: swap indices of mask for ghost boundaries
331	!
332	! 1015 2012-09-27 09:23:24Z raasch
333	! mask is set to zero for ghost boundaries
334	!
335	! 1010 2012-09-20 07:59:54Z raasch
336	! cpp switch __nopointer added for pointer free version
337	!
338	! 1003 2012-09-14 14:35:53Z raasch
339	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
340	!
341	! 1001 2012-09-13 14:08:46Z raasch
342	! all actions concerning leapfrog scheme removed
343	!
344	! 996 2012-09-07 10:41:47Z raasch
345	! little reformatting
346	!
347	! 978 2012-08-09 08:28:32Z fricke
348	! outflow damping layer removed
349	! roughness length for scalar quantites z0h added
350	! damping zone for the potential temperatur in case of non-cyclic lateral
351	! boundaries added
352	! initialization of ptdf_x, ptdf_y
353	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
354	!
355	! 849 2012-03-15 10:35:09Z raasch
356	! init_particles renamed lpm_init
357	!
358	! 825 2012-02-19 03:03:44Z raasch
359	! wang_collision_kernel renamed wang_kernel
360	!
361	! Revision 1.1 1998/03/09 16:22:22 raasch
362	! Initial revision
363	!
364	!
365	! Description:
366	! ------------
367	!> Allocation of arrays and initialization of the 3D model via
368	!> a) pre-run the 1D model
369	!> or
370	!> b) pre-set constant linear profiles
371	!> or
372	!> c) read values of a previous run
373	!------------------------------------------------------------------------------!
374	SUBROUTINE init_3d_model
375
376
377	USE advec_ws
378
379	USE arrays_3d
380
381	USE cloud_parameters, &
382	ONLY: cp, l_v, r_d
383
384	USE constants, &
385	ONLY: pi
386
387	USE control_parameters
388
389	USE flight_mod, &
390	ONLY: flight_init
391
392	USE grid_variables, &
393	ONLY: dx, dy, ddx2_mg, ddy2_mg
394
395	USE indices
396
397	USE lpm_init_mod, &
398	ONLY: lpm_init
399
400	USE kinds
401
402	USE land_surface_model_mod, &
403	ONLY: lsm_init, lsm_init_arrays
404
405	USE lsf_nudging_mod, &
406	ONLY: lsf_init, ls_forcing_surf, nudge_init
407
408	USE microphysics_mod, &
409	ONLY: collision_turbulence, microphysics_init
410
411	USE model_1d_mod, &
412	ONLY: e1d, init_1d_model, kh1d, km1d, l1d, rif1d, u1d, us1d, usws1d, &
413	v1d, vsws1d
414
415	USE netcdf_interface, &
416	ONLY: dots_max, dots_num
417
418	USE particle_attributes, &
419	ONLY: particle_advection, use_sgs_for_particles, wang_kernel
420
421	USE pegrid
422
423	USE plant_canopy_model_mod, &
424	ONLY: pcm_init, plant_canopy
425
426	USE radiation_model_mod, &
427	ONLY: radiation_init, radiation, radiation_scheme
428
429	USE random_function_mod
430
431	USE random_generator_parallel, &
432	ONLY: init_parallel_random_generator
433
434	USE statistics, &
435	ONLY: hom, hom_sum, mean_surface_level_height, pr_palm, rmask, &
436	statistic_regions, sums, sums_divnew_l, sums_divold_l, sums_l, &
437	sums_l_l, sums_wsts_bc_l, ts_value, &
438	weight_pres, weight_substep
439
440	USE synthetic_turbulence_generator_mod, &
441	ONLY: stg_init, use_synthetic_turbulence_generator
442
443	USE surface_layer_fluxes_mod, &
444	ONLY: init_surface_layer_fluxes
445
446	USE surface_mod, &
447	ONLY : init_surface_arrays, init_surfaces, surf_def_h, surf_lsm_h, &
448	surf_usm_h, get_topography_top_index
449
450	USE transpose_indices
451
452	USE urban_surface_mod, &
453	ONLY: usm_init_urban_surface
454
455	USE wind_turbine_model_mod, &
456	ONLY: wtm_init, wtm_init_arrays
457
458	IMPLICIT NONE
459
460	INTEGER(iwp) :: i !<
461	INTEGER(iwp) :: ind_array(1) !<
462	INTEGER(iwp) :: j !<
463	INTEGER(iwp) :: k !<
464	INTEGER(iwp) :: k_surf !< surface level index
465	INTEGER(iwp) :: m !< index of surface element in surface data type
466	INTEGER(iwp) :: sr !< index of statistic region
467
468	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !<
469
470	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !<
471	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !<
472
473	REAL(wp) :: t_surface !< air temperature at the surface
474
475	REAL(wp), DIMENSION(:), ALLOCATABLE :: p_hydrostatic !< hydrostatic pressure
476
477	INTEGER(iwp) :: l !< loop variable
478	INTEGER(iwp) :: nzt_l !< index of top PE boundary for multigrid level
479	REAL(wp) :: dx_l !< grid spacing along x on different multigrid level
480	REAL(wp) :: dy_l !< grid spacing along y on different multigrid level
481
482	REAL(wp), DIMENSION(1:3) :: volume_flow_area_l !<
483	REAL(wp), DIMENSION(1:3) :: volume_flow_initial_l !<
484
485	REAL(wp), DIMENSION(:), ALLOCATABLE :: mean_surface_level_height_l !<
486	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !<
487	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !<
488
489	INTEGER(iwp) :: nz_u_shift !<
490	INTEGER(iwp) :: nz_v_shift !<
491	INTEGER(iwp) :: nz_w_shift !<
492	INTEGER(iwp) :: nz_s_shift !<
493	INTEGER(iwp) :: nz_u_shift_l !<
494	INTEGER(iwp) :: nz_v_shift_l !<
495	INTEGER(iwp) :: nz_w_shift_l !<
496	INTEGER(iwp) :: nz_s_shift_l !<
497
498	CALL location_message( 'allocating arrays', .FALSE. )
499	!
500	!-- Allocate arrays
501	ALLOCATE( mean_surface_level_height(0:statistic_regions), &
502	mean_surface_level_height_l(0:statistic_regions), &
503	ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
504	ngp_3d(0:statistic_regions), &
505	ngp_3d_inner(0:statistic_regions), &
506	ngp_3d_inner_l(0:statistic_regions), &
507	ngp_3d_inner_tmp(0:statistic_regions), &
508	sums_divnew_l(0:statistic_regions), &
509	sums_divold_l(0:statistic_regions) )
510	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
511	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
512	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
513	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
514	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
515	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
516	sums(nzb:nzt+1,pr_palm+max_pr_user), &
517	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
518	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
519	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
520	ts_value(dots_max,0:statistic_regions) )
521	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
522
523	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
524	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
525	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
526	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
527	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
528
529	#if defined( __nopointer )
530	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
531	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
532	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
533	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
534	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
535	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
536	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
537	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
538	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
539	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
540	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
541	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
542	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
543	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
544	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
545	#else
546	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
547	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
548	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
549	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
550	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
551	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
552	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
553	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
554	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
555	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
556	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
557	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
558	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
559	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
560	IF ( .NOT. neutral ) THEN
561	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
562	ENDIF
563	#endif
564
565	!
566	!-- Following array is required for perturbation pressure within the iterative
567	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
568	!-- the weighted average of the substeps and cannot be used in the Poisson
569	!-- solver.
570	IF ( psolver == 'sor' ) THEN
571	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
572	ELSEIF ( psolver(1:9) == 'multigrid' ) THEN
573	!
574	!-- For performance reasons, multigrid is using one ghost layer only
575	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
576	ENDIF
577
578	!
579	!-- Array for storing constant coeffficients of the tridiagonal solver
580	IF ( psolver == 'poisfft' ) THEN
581	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
582	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
583	ENDIF
584
585	IF ( humidity ) THEN
586	!
587	!-- 3D-humidity
588	#if defined( __nopointer )
589	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
590	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
591	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
592	#else
593	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
594	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
595	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
596	#endif
597
598	!
599	!-- 3D-arrays needed for humidity
600	IF ( humidity ) THEN
601	#if defined( __nopointer )
602	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
603	#else
604	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
605	#endif
606
607	IF ( cloud_physics ) THEN
608	!
609	!-- Liquid water content
610	#if defined( __nopointer )
611	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
612	#else
613	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
614	#endif
615
616	!
617	!-- 3D-cloud water content
618	IF ( .NOT. microphysics_morrison ) THEN
619	#if defined( __nopointer )
620	ALLOCATE( qc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
621	#else
622	ALLOCATE( qc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
623	#endif
624	ENDIF
625	!
626	!-- Precipitation amount and rate (only needed if output is switched)
627	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
628	precipitation_rate(nysg:nyng,nxlg:nxrg) )
629
630	!
631	!-- 3d-precipitation rate
632	ALLOCATE( prr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
633
634	IF ( microphysics_morrison ) THEN
635	!
636	!-- 3D-cloud drop water content, cloud drop concentration arrays
637	#if defined( __nopointer )
638	ALLOCATE( nc(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
639	nc_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
640	qc(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
641	qc_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
642	tnc_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
643	tqc_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
644	#else
645	ALLOCATE( nc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
646	nc_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
647	nc_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
648	qc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
649	qc_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
650	qc_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
651	#endif
652	ENDIF
653
654	IF ( microphysics_seifert ) THEN
655	!
656	!-- 3D-rain water content, rain drop concentration arrays
657	#if defined( __nopointer )
658	ALLOCATE( nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
659	nr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
660	qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
661	qr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
662	tnr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
663	tqr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
664	#else
665	ALLOCATE( nr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
666	nr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
667	nr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
668	qr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
669	qr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
670	qr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
671	#endif
672	ENDIF
673
674	ENDIF
675
676	IF ( cloud_droplets ) THEN
677	!
678	!-- Liquid water content, change in liquid water content
679	#if defined( __nopointer )
680	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
681	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
682	#else
683	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
684	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
685	#endif
686	!
687	!-- Real volume of particles (with weighting), volume of particles
688	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
689	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
690	ENDIF
691
692	ENDIF
693
694	ENDIF
695
696
697	IF ( passive_scalar ) THEN
698
699	!
700	!-- 3D scalar arrays
701	#if defined( __nopointer )
702	ALLOCATE( s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
703	s_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
704	ts_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
705	#else
706	ALLOCATE( s_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
707	s_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
708	s_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
709	#endif
710	ENDIF
711
712	IF ( ocean ) THEN
713	#if defined( __nopointer )
714	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
715	rho_ocean(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
716	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
717	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
718	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
719	#else
720	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
721	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
722	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
723	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
724	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
725	prho => prho_1
726	rho_ocean => rho_1 ! routines calc_mean_profile and diffusion_e require
727	! density to be apointer
728	#endif
729	ENDIF
730
731	!
732	!-- Allocation of anelastic and Boussinesq approximation specific arrays
733	ALLOCATE( p_hydrostatic(nzb:nzt+1) )
734	ALLOCATE( rho_air(nzb:nzt+1) )
735	ALLOCATE( rho_air_zw(nzb:nzt+1) )
736	ALLOCATE( drho_air(nzb:nzt+1) )
737	ALLOCATE( drho_air_zw(nzb:nzt+1) )
738
739	!
740	!-- Density profile calculation for anelastic approximation
741	t_surface = pt_surface * ( surface_pressure / 1000.0_wp )**( r_d / cp )
742	IF ( TRIM( approximation ) == 'anelastic' ) THEN
743	DO k = nzb, nzt+1
744	p_hydrostatic(k) = surface_pressure * 100.0_wp * &
745	( 1 - ( g * zu(k) ) / ( cp * t_surface ) &
746	)**( cp / r_d )
747	rho_air(k) = ( p_hydrostatic(k) * &
748	( 100000.0_wp / p_hydrostatic(k) &
749	)**( r_d / cp ) &
750	) / ( r_d * pt_init(k) )
751	ENDDO
752	DO k = nzb, nzt
753	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
754	ENDDO
755	rho_air_zw(nzt+1) = rho_air_zw(nzt) &
756	+ 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
757	ELSE
758	DO k = nzb, nzt+1
759	p_hydrostatic(k) = surface_pressure * 100.0_wp * &
760	( 1 - ( g * zu(nzb) ) / ( cp * t_surface ) &
761	)**( cp / r_d )
762	rho_air(k) = ( p_hydrostatic(k) * &
763	( 100000.0_wp / p_hydrostatic(k) &
764	)**( r_d / cp ) &
765	) / ( r_d * pt_init(nzb) )
766	ENDDO
767	DO k = nzb, nzt
768	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
769	ENDDO
770	rho_air_zw(nzt+1) = rho_air_zw(nzt) &
771	+ 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
772	ENDIF
773
774	!-- compute the inverse density array in order to avoid expencive divisions
775	drho_air = 1.0_wp / rho_air
776	drho_air_zw = 1.0_wp / rho_air_zw
777
778	!
779	!-- Allocation of flux conversion arrays
780	ALLOCATE( heatflux_input_conversion(nzb:nzt+1) )
781	ALLOCATE( waterflux_input_conversion(nzb:nzt+1) )
782	ALLOCATE( momentumflux_input_conversion(nzb:nzt+1) )
783	ALLOCATE( heatflux_output_conversion(nzb:nzt+1) )
784	ALLOCATE( waterflux_output_conversion(nzb:nzt+1) )
785	ALLOCATE( momentumflux_output_conversion(nzb:nzt+1) )
786
787	!
788	!-- calculate flux conversion factors according to approximation and in-/output mode
789	DO k = nzb, nzt+1
790
791	IF ( TRIM( flux_input_mode ) == 'kinematic' ) THEN
792	heatflux_input_conversion(k) = rho_air_zw(k)
793	waterflux_input_conversion(k) = rho_air_zw(k)
794	momentumflux_input_conversion(k) = rho_air_zw(k)
795	ELSEIF ( TRIM( flux_input_mode ) == 'dynamic' ) THEN
796	heatflux_input_conversion(k) = 1.0_wp / cp
797	waterflux_input_conversion(k) = 1.0_wp / l_v
798	momentumflux_input_conversion(k) = 1.0_wp
799	ENDIF
800
801	IF ( TRIM( flux_output_mode ) == 'kinematic' ) THEN
802	heatflux_output_conversion(k) = drho_air_zw(k)
803	waterflux_output_conversion(k) = drho_air_zw(k)
804	momentumflux_output_conversion(k) = drho_air_zw(k)
805	ELSEIF ( TRIM( flux_output_mode ) == 'dynamic' ) THEN
806	heatflux_output_conversion(k) = cp
807	waterflux_output_conversion(k) = l_v
808	momentumflux_output_conversion(k) = 1.0_wp
809	ENDIF
810
811	IF ( .NOT. humidity ) THEN
812	waterflux_input_conversion(k) = 1.0_wp
813	waterflux_output_conversion(k) = 1.0_wp
814	ENDIF
815
816	ENDDO
817
818	!
819	!-- In case of multigrid method, compute grid lengths and grid factors for the
820	!-- grid levels with respective density on each grid
821	IF ( psolver(1:9) == 'multigrid' ) THEN
822
823	ALLOCATE( ddx2_mg(maximum_grid_level) )
824	ALLOCATE( ddy2_mg(maximum_grid_level) )
825	ALLOCATE( dzu_mg(nzb+1:nzt+1,maximum_grid_level) )
826	ALLOCATE( dzw_mg(nzb+1:nzt+1,maximum_grid_level) )
827	ALLOCATE( f1_mg(nzb+1:nzt,maximum_grid_level) )
828	ALLOCATE( f2_mg(nzb+1:nzt,maximum_grid_level) )
829	ALLOCATE( f3_mg(nzb+1:nzt,maximum_grid_level) )
830	ALLOCATE( rho_air_mg(nzb:nzt+1,maximum_grid_level) )
831	ALLOCATE( rho_air_zw_mg(nzb:nzt+1,maximum_grid_level) )
832
833	dzu_mg(:,maximum_grid_level) = dzu
834	rho_air_mg(:,maximum_grid_level) = rho_air
835	!
836	!-- Next line to ensure an equally spaced grid.
837	dzu_mg(1,maximum_grid_level) = dzu(2)
838	rho_air_mg(nzb,maximum_grid_level) = rho_air(nzb) + &
839	(rho_air(nzb) - rho_air(nzb+1))
840
841	dzw_mg(:,maximum_grid_level) = dzw
842	rho_air_zw_mg(:,maximum_grid_level) = rho_air_zw
843	nzt_l = nzt
844	DO l = maximum_grid_level-1, 1, -1
845	dzu_mg(nzb+1,l) = 2.0_wp * dzu_mg(nzb+1,l+1)
846	dzw_mg(nzb+1,l) = 2.0_wp * dzw_mg(nzb+1,l+1)
847	rho_air_mg(nzb,l) = rho_air_mg(nzb,l+1) + (rho_air_mg(nzb,l+1) - rho_air_mg(nzb+1,l+1))
848	rho_air_zw_mg(nzb,l) = rho_air_zw_mg(nzb,l+1) + (rho_air_zw_mg(nzb,l+1) - rho_air_zw_mg(nzb+1,l+1))
849	rho_air_mg(nzb+1,l) = rho_air_mg(nzb+1,l+1)
850	rho_air_zw_mg(nzb+1,l) = rho_air_zw_mg(nzb+1,l+1)
851	nzt_l = nzt_l / 2
852	DO k = 2, nzt_l+1
853	dzu_mg(k,l) = dzu_mg(2k-2,l+1) + dzu_mg(2k-1,l+1)
854	dzw_mg(k,l) = dzw_mg(2k-2,l+1) + dzw_mg(2k-1,l+1)
855	rho_air_mg(k,l) = rho_air_mg(2*k-1,l+1)
856	rho_air_zw_mg(k,l) = rho_air_zw_mg(2*k-1,l+1)
857	ENDDO
858	ENDDO
859
860	nzt_l = nzt
861	dx_l = dx
862	dy_l = dy
863	DO l = maximum_grid_level, 1, -1
864	ddx2_mg(l) = 1.0_wp / dx_l**2
865	ddy2_mg(l) = 1.0_wp / dy_l**2
866	DO k = nzb+1, nzt_l
867	f2_mg(k,l) = rho_air_zw_mg(k,l) / ( dzu_mg(k+1,l) * dzw_mg(k,l) )
868	f3_mg(k,l) = rho_air_zw_mg(k-1,l) / ( dzu_mg(k,l) * dzw_mg(k,l) )
869	f1_mg(k,l) = 2.0_wp * ( ddx2_mg(l) + ddy2_mg(l) ) &
870	* rho_air_mg(k,l) + f2_mg(k,l) + f3_mg(k,l)
871	ENDDO
872	nzt_l = nzt_l / 2
873	dx_l = dx_l * 2.0_wp
874	dy_l = dy_l * 2.0_wp
875	ENDDO
876
877	ENDIF
878
879	!
880	!-- 3D-array for storing the dissipation, needed for calculating the sgs
881	!-- particle velocities
882	IF ( use_sgs_for_particles .OR. wang_kernel .OR. collision_turbulence )&
883	THEN
884	ALLOCATE( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
885	ENDIF
886
887	!
888	!-- 1D-array for large scale subsidence velocity
889	IF ( .NOT. ALLOCATED( w_subs ) ) THEN
890	ALLOCATE ( w_subs(nzb:nzt+1) )
891	w_subs = 0.0_wp
892	ENDIF
893
894	!
895	!-- Arrays to store velocity data from t-dt and the phase speeds which
896	!-- are needed for radiation boundary conditions
897	IF ( outflow_l ) THEN
898	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
899	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
900	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
901	ENDIF
902	IF ( outflow_r ) THEN
903	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
904	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
905	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
906	ENDIF
907	IF ( outflow_l .OR. outflow_r ) THEN
908	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
909	c_w(nzb:nzt+1,nysg:nyng) )
910	ENDIF
911	IF ( outflow_s ) THEN
912	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
913	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
914	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
915	ENDIF
916	IF ( outflow_n ) THEN
917	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
918	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
919	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
920	ENDIF
921	IF ( outflow_s .OR. outflow_n ) THEN
922	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
923	c_w(nzb:nzt+1,nxlg:nxrg) )
924	ENDIF
925	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
926	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
927	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
928	ENDIF
929
930
931	#if ! defined( __nopointer )
932	!
933	!-- Initial assignment of the pointers
934	e => e_1; e_p => e_2; te_m => e_3
935	IF ( .NOT. neutral ) THEN
936	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
937	ELSE
938	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
939	ENDIF
940	u => u_1; u_p => u_2; tu_m => u_3
941	v => v_1; v_p => v_2; tv_m => v_3
942	w => w_1; w_p => w_2; tw_m => w_3
943
944	IF ( humidity ) THEN
945	q => q_1; q_p => q_2; tq_m => q_3
946	IF ( humidity ) THEN
947	vpt => vpt_1
948	IF ( cloud_physics ) THEN
949	ql => ql_1
950	IF ( .NOT. microphysics_morrison ) THEN
951	qc => qc_1
952	ENDIF
953	IF ( microphysics_morrison ) THEN
954	qc => qc_1; qc_p => qc_2; tqc_m => qc_3
955	nc => nc_1; nc_p => nc_2; tnc_m => nc_3
956	ENDIF
957	IF ( microphysics_seifert ) THEN
958	qr => qr_1; qr_p => qr_2; tqr_m => qr_3
959	nr => nr_1; nr_p => nr_2; tnr_m => nr_3
960	ENDIF
961	ENDIF
962	ENDIF
963	IF ( cloud_droplets ) THEN
964	ql => ql_1
965	ql_c => ql_2
966	ENDIF
967	ENDIF
968
969	IF ( passive_scalar ) THEN
970	s => s_1; s_p => s_2; ts_m => s_3
971	ENDIF
972
973	IF ( ocean ) THEN
974	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
975	ENDIF
976	#endif
977	!
978	!-- Initialize wall arrays
979	CALL init_surface_arrays
980	!
981	!-- Allocate land surface model arrays
982	IF ( land_surface ) THEN
983	CALL lsm_init_arrays
984	ENDIF
985
986	!
987	!-- Allocate wind turbine model arrays
988	IF ( wind_turbine ) THEN
989	CALL wtm_init_arrays
990	ENDIF
991
992	!
993	!-- Initialize virtual flight measurements
994	IF ( virtual_flight ) THEN
995	CALL flight_init
996	ENDIF
997
998	!
999	!-- Initialize nudging if required
1000	IF ( nudging ) THEN
1001	CALL nudge_init
1002	ENDIF
1003
1004	!
1005	!-- Initialize reading of large scale forcing from external file - if required
1006	IF ( large_scale_forcing ) THEN
1007	CALL lsf_init
1008	ENDIF
1009
1010	!
1011	!-- Allocate arrays containing the RK coefficient for calculation of
1012	!-- perturbation pressure and turbulent fluxes. At this point values are
1013	!-- set for pressure calculation during initialization (where no timestep
1014	!-- is done). Further below the values needed within the timestep scheme
1015	!-- will be set.
1016	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
1017	weight_pres(1:intermediate_timestep_count_max) )
1018	weight_substep = 1.0_wp
1019	weight_pres = 1.0_wp
1020	intermediate_timestep_count = 0 ! needed when simulated_time = 0.0
1021
1022	CALL location_message( 'finished', .TRUE. )
1023
1024	!
1025	!-- Initialize local summation arrays for routine flow_statistics.
1026	!-- This is necessary because they may not yet have been initialized when they
1027	!-- are called from flow_statistics (or - depending on the chosen model run -
1028	!-- are never initialized)
1029	sums_divnew_l = 0.0_wp
1030	sums_divold_l = 0.0_wp
1031	sums_l_l = 0.0_wp
1032	sums_wsts_bc_l = 0.0_wp
1033
1034	!
1035	!-- Initialize model variables
1036	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1037	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1038	!
1039	!-- First model run of a possible job queue.
1040	!-- Initial profiles of the variables must be computes.
1041	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
1042
1043	CALL location_message( 'initializing with 1D model profiles', .FALSE. )
1044	!
1045	!-- Use solutions of the 1D model as initial profiles,
1046	!-- start 1D model
1047	CALL init_1d_model
1048	!
1049	!-- Transfer initial profiles to the arrays of the 3D model
1050	DO i = nxlg, nxrg
1051	DO j = nysg, nyng
1052	e(:,j,i) = e1d
1053	kh(:,j,i) = kh1d
1054	km(:,j,i) = km1d
1055	pt(:,j,i) = pt_init
1056	u(:,j,i) = u1d
1057	v(:,j,i) = v1d
1058	ENDDO
1059	ENDDO
1060
1061	IF ( humidity ) THEN
1062	DO i = nxlg, nxrg
1063	DO j = nysg, nyng
1064	q(:,j,i) = q_init
1065	ENDDO
1066	ENDDO
1067	IF ( cloud_physics .AND. microphysics_morrison ) THEN
1068	DO i = nxlg, nxrg
1069	DO j = nysg, nyng
1070	qc(:,j,i) = 0.0_wp
1071	nc(:,j,i) = 0.0_wp
1072	ENDDO
1073	ENDDO
1074	ENDIF
1075	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1076	DO i = nxlg, nxrg
1077	DO j = nysg, nyng
1078	qr(:,j,i) = 0.0_wp
1079	nr(:,j,i) = 0.0_wp
1080	ENDDO
1081	ENDDO
1082	ENDIF
1083	ENDIF
1084
1085	IF ( passive_scalar ) THEN
1086	DO i = nxlg, nxrg
1087	DO j = nysg, nyng
1088	s(:,j,i) = s_init
1089	ENDDO
1090	ENDDO
1091	ENDIF
1092
1093	IF ( .NOT. constant_diffusion ) THEN
1094	DO i = nxlg, nxrg
1095	DO j = nysg, nyng
1096	e(:,j,i) = e1d
1097	ENDDO
1098	ENDDO
1099	!
1100	!-- Store initial profiles for output purposes etc.
1101	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
1102
1103	ELSE
1104	e = 0.0_wp ! must be set, because used in
1105	ENDIF
1106	!
1107	!-- Inside buildings set velocities back to zero
1108	IF ( topography /= 'flat' ) THEN
1109	DO i = nxlg, nxrg
1110	DO j = nysg, nyng
1111	DO k = nzb, nzt
1112	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, &
1113	BTEST( wall_flags_0(k,j,i), 1 ) )
1114	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, &
1115	BTEST( wall_flags_0(k,j,i), 2 ) )
1116	ENDDO
1117	ENDDO
1118	ENDDO
1119
1120	!
1121	!-- WARNING: The extra boundary conditions set after running the
1122	!-- ------- 1D model impose an error on the divergence one layer
1123	!-- below the topography; need to correct later
1124	!-- ATTENTION: Provisional correction for Piacsek & Williams
1125	!-- --------- advection scheme: keep u and v zero one layer below
1126	!-- the topography.
1127	IF ( ibc_uv_b == 1 ) THEN
1128	!
1129	!-- Neumann condition
1130	DO i = nxl-1, nxr+1
1131	DO j = nys-1, nyn+1
1132	u(nzb,j,i) = u(nzb+1,j,i)
1133	v(nzb,j,i) = v(nzb+1,j,i)
1134	ENDDO
1135	ENDDO
1136
1137	ENDIF
1138
1139	ENDIF
1140	!
1141	!-- Initialize surface variables, e.g. friction velocity, momentum
1142	!-- fluxes, etc.
1143	CALL init_surfaces
1144
1145	CALL location_message( 'finished', .TRUE. )
1146
1147	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
1148	THEN
1149
1150	CALL location_message( 'initializing with constant profiles', .FALSE. )
1151	!
1152	!-- Overwrite initial profiles in case of synthetic turbulence generator
1153	IF( use_synthetic_turbulence_generator ) THEN
1154	CALL stg_init
1155	ENDIF
1156
1157	!
1158	!-- Use constructed initial profiles (velocity constant with height,
1159	!-- temperature profile with constant gradient)
1160	DO i = nxlg, nxrg
1161	DO j = nysg, nyng
1162	pt(:,j,i) = pt_init
1163	u(:,j,i) = u_init
1164	v(:,j,i) = v_init
1165	ENDDO
1166	ENDDO
1167
1168	!
1169	!-- Set initial horizontal velocities at the lowest computational grid
1170	!-- levels to zero in order to avoid too small time steps caused by the
1171	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
1172	!-- in the limiting formula!).
1173	IF ( ibc_uv_b /= 1 ) THEN
1174	DO i = nxlg, nxrg
1175	DO j = nysg, nyng
1176	DO k = nzb, nzt
1177	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, &
1178	BTEST( wall_flags_0(k,j,i), 20 ) )
1179	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, &
1180	BTEST( wall_flags_0(k,j,i), 21 ) )
1181	ENDDO
1182	ENDDO
1183	ENDDO
1184	ENDIF
1185
1186	IF ( humidity ) THEN
1187	DO i = nxlg, nxrg
1188	DO j = nysg, nyng
1189	q(:,j,i) = q_init
1190	ENDDO
1191	ENDDO
1192	IF ( cloud_physics .AND. microphysics_morrison ) THEN
1193	DO i = nxlg, nxrg
1194	DO j = nysg, nyng
1195	qc(:,j,i) = 0.0_wp
1196	nc(:,j,i) = 0.0_wp
1197	ENDDO
1198	ENDDO
1199	ENDIF
1200
1201	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1202	DO i = nxlg, nxrg
1203	DO j = nysg, nyng
1204	qr(:,j,i) = 0.0_wp
1205	nr(:,j,i) = 0.0_wp
1206	ENDDO
1207	ENDDO
1208	ENDIF
1209
1210	ENDIF
1211
1212	IF ( passive_scalar ) THEN
1213	DO i = nxlg, nxrg
1214	DO j = nysg, nyng
1215	s(:,j,i) = s_init
1216	ENDDO
1217	ENDDO
1218	ENDIF
1219
1220	IF ( ocean ) THEN
1221	DO i = nxlg, nxrg
1222	DO j = nysg, nyng
1223	sa(:,j,i) = sa_init
1224	ENDDO
1225	ENDDO
1226	ENDIF
1227
1228	IF ( constant_diffusion ) THEN
1229	km = km_constant
1230	kh = km / prandtl_number
1231	e = 0.0_wp
1232	ELSEIF ( e_init > 0.0_wp ) THEN
1233	DO k = nzb+1, nzt
1234	km(k,:,:) = 0.1_wp * l_grid(k) * SQRT( e_init )
1235	ENDDO
1236	km(nzb,:,:) = km(nzb+1,:,:)
1237	km(nzt+1,:,:) = km(nzt,:,:)
1238	kh = km / prandtl_number
1239	e = e_init
1240	ELSE
1241	IF ( .NOT. ocean ) THEN
1242	kh = 0.01_wp ! there must exist an initial diffusion, because
1243	km = 0.01_wp ! otherwise no TKE would be produced by the
1244	! production terms, as long as not yet
1245	! e = (u/cm)*2 at k=nzb+1
1246	ELSE
1247	kh = 0.00001_wp
1248	km = 0.00001_wp
1249	ENDIF
1250	e = 0.0_wp
1251	ENDIF
1252	!
1253	!-- Compute initial temperature field and other constants used in case
1254	!-- of a sloping surface
1255	IF ( sloping_surface ) CALL init_slope
1256	!
1257	!-- Initialize surface variables, e.g. friction velocity, momentum
1258	!-- fluxes, etc.
1259	CALL init_surfaces
1260
1261	CALL location_message( 'finished', .TRUE. )
1262
1263	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
1264	THEN
1265
1266	CALL location_message( 'initializing by user', .FALSE. )
1267	!
1268	!-- Pre-initialize surface variables, i.e. setting start- and end-indices
1269	!-- at each (j,i)-location. Please note, this does not supersede
1270	!-- user-defined initialization of surface quantities.
1271	CALL init_surfaces
1272	!
1273	!-- Initialization will completely be done by the user
1274	CALL user_init_3d_model
1275
1276	CALL location_message( 'finished', .TRUE. )
1277
1278	ENDIF
1279
1280	CALL location_message( 'initializing statistics, boundary conditions, etc.', &
1281	.FALSE. )
1282
1283	!
1284	!-- Bottom boundary
1285	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
1286	u(nzb,:,:) = 0.0_wp
1287	v(nzb,:,:) = 0.0_wp
1288	ENDIF
1289
1290	!
1291	!-- Apply channel flow boundary condition
1292	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
1293	u(nzt+1,:,:) = 0.0_wp
1294	v(nzt+1,:,:) = 0.0_wp
1295	ENDIF
1296
1297	!
1298	!-- Calculate virtual potential temperature
1299	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
1300
1301	!
1302	!-- Store initial profiles for output purposes etc.
1303	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
1304	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
1305	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
1306	hom(nzb,1,5,:) = 0.0_wp
1307	hom(nzb,1,6,:) = 0.0_wp
1308	ENDIF
1309	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
1310	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
1311	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
1312
1313	IF ( ocean ) THEN
1314	!
1315	!-- Store initial salinity profile
1316	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
1317	ENDIF
1318
1319	IF ( humidity ) THEN
1320	!
1321	!-- Store initial profile of total water content, virtual potential
1322	!-- temperature
1323	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
1324	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
1325	IF ( cloud_physics .OR. cloud_droplets ) THEN
1326	!
1327	!-- Store initial profile of specific humidity and potential
1328	!-- temperature
1329	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
1330	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
1331	ENDIF
1332	ENDIF
1333
1334	IF ( passive_scalar ) THEN
1335	!
1336	!-- Store initial scalar profile
1337	hom(:,1,121,:) = SPREAD( s(:,nys,nxl), 2, statistic_regions+1 )
1338	ENDIF
1339
1340	!
1341	!-- Initialize the random number generators (from numerical recipes)
1342	CALL random_function_ini
1343
1344	IF ( random_generator == 'random-parallel' ) THEN
1345	CALL init_parallel_random_generator(nx, ny, nys, nyn, nxl, nxr)
1346	ENDIF
1347	!
1348	!-- Set the reference state to be used in the buoyancy terms (for ocean runs
1349	!-- the reference state will be set (overwritten) in init_ocean)
1350	IF ( use_single_reference_value ) THEN
1351	IF ( .NOT. humidity ) THEN
1352	ref_state(:) = pt_reference
1353	ELSE
1354	ref_state(:) = vpt_reference
1355	ENDIF
1356	ELSE
1357	IF ( .NOT. humidity ) THEN
1358	ref_state(:) = pt_init(:)
1359	ELSE
1360	ref_state(:) = vpt(:,nys,nxl)
1361	ENDIF
1362	ENDIF
1363
1364	!
1365	!-- For the moment, vertical velocity is zero
1366	w = 0.0_wp
1367
1368	!
1369	!-- Initialize array sums (must be defined in first call of pres)
1370	sums = 0.0_wp
1371
1372	!
1373	!-- In case of iterative solvers, p must get an initial value
1374	IF ( psolver(1:9) == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
1375
1376	!
1377	!-- Treating cloud physics, liquid water content and precipitation amount
1378	!-- are zero at beginning of the simulation
1379	IF ( cloud_physics ) THEN
1380	ql = 0.0_wp
1381	qc = 0.0_wp
1382
1383	precipitation_amount = 0.0_wp
1384	ENDIF
1385	!
1386	!-- Impose vortex with vertical axis on the initial velocity profile
1387	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
1388	CALL init_rankine
1389	ENDIF
1390
1391	!
1392	!-- Impose temperature anomaly (advection test only)
1393	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
1394	CALL init_pt_anomaly
1395	ENDIF
1396
1397	!
1398	!-- If required, change the surface temperature at the start of the 3D run
1399	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
1400	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
1401	ENDIF
1402
1403	!
1404	!-- If required, change the surface humidity/scalar at the start of the 3D
1405	!-- run
1406	IF ( humidity .AND. q_surface_initial_change /= 0.0_wp ) &
1407	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
1408
1409	IF ( passive_scalar .AND. s_surface_initial_change /= 0.0_wp ) &
1410	s(nzb,:,:) = s(nzb,:,:) + s_surface_initial_change
1411
1412
1413	!
1414	!-- Initialize old and new time levels.
1415	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
1416	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1417
1418	IF ( humidity ) THEN
1419	tq_m = 0.0_wp
1420	q_p = q
1421	IF ( cloud_physics .AND. microphysics_morrison ) THEN
1422	tqc_m = 0.0_wp
1423	qc_p = qc
1424	tnc_m = 0.0_wp
1425	nc_p = nc
1426	ENDIF
1427	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1428	tqr_m = 0.0_wp
1429	qr_p = qr
1430	tnr_m = 0.0_wp
1431	nr_p = nr
1432	ENDIF
1433	ENDIF
1434
1435	IF ( passive_scalar ) THEN
1436	ts_m = 0.0_wp
1437	s_p = s
1438	ENDIF
1439
1440	IF ( ocean ) THEN
1441	tsa_m = 0.0_wp
1442	sa_p = sa
1443	ENDIF
1444
1445	CALL location_message( 'finished', .TRUE. )
1446
1447	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
1448	TRIM( initializing_actions ) == 'cyclic_fill' ) &
1449	THEN
1450
1451	CALL location_message( 'initializing in case of restart / cyclic_fill', &
1452	.FALSE. )
1453	!
1454	!-- Initialize surface elements and its attributes, e.g. heat- and
1455	!-- momentumfluxes, roughness, scaling parameters. As number of surface
1456	!-- elements might be different between runs, e.g. in case of cyclic fill,
1457	!-- and not all surface elements are read, surface elements need to be
1458	!-- initialized before.
1459	CALL init_surfaces
1460	!
1461	!-- When reading data for cyclic fill of 3D prerun data files, read
1462	!-- some of the global variables from the restart file which are required
1463	!-- for initializing the inflow
1464	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1465
1466	DO i = 0, io_blocks-1
1467	IF ( i == io_group ) THEN
1468	CALL read_parts_of_var_list
1469	CALL close_file( 13 )
1470	ENDIF
1471	#if defined( __parallel )
1472	CALL MPI_BARRIER( comm2d, ierr )
1473	#endif
1474	ENDDO
1475
1476	ENDIF
1477
1478	!
1479	!-- Read binary data from restart file
1480	DO i = 0, io_blocks-1
1481	IF ( i == io_group ) THEN
1482	CALL read_3d_binary
1483	ENDIF
1484	#if defined( __parallel )
1485	CALL MPI_BARRIER( comm2d, ierr )
1486	#endif
1487	ENDDO
1488
1489	!
1490	!-- In case of complex terrain and cyclic fill method as initialization,
1491	!-- shift initial data in the vertical direction for each point in the
1492	!-- x-y-plane depending on local surface height
1493	IF ( complex_terrain .AND. &
1494	TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1495	DO i = nxlg, nxrg
1496	DO j = nysg, nyng
1497	nz_u_shift = get_topography_top_index( j, i, 'u' )
1498	nz_v_shift = get_topography_top_index( j, i, 'v' )
1499	nz_w_shift = get_topography_top_index( j, i, 'w' )
1500	nz_s_shift = get_topography_top_index( j, i, 's' )
1501
1502	u(nz_u_shift:nzt+1,j,i) = u(0:nzt+1-nz_u_shift,j,i)
1503
1504	v(nz_v_shift:nzt+1,j,i) = v(0:nzt+1-nz_v_shift,j,i)
1505
1506	w(nz_w_shift:nzt+1,j,i) = w(0:nzt+1-nz_w_shift,j,i)
1507
1508	e(nz_s_shift:nzt+1,j,i) = e(0:nzt+1-nz_s_shift,j,i)
1509	p(nz_s_shift:nzt+1,j,i) = p(0:nzt+1-nz_s_shift,j,i)
1510	pt(nz_s_shift:nzt+1,j,i) = pt(0:nzt+1-nz_s_shift,j,i)
1511	km(nz_s_shift:nzt+1,j,i) = km(0:nzt+1-nz_s_shift,j,i)
1512	kh(nz_s_shift:nzt+1,j,i) = kh(0:nzt+1-nz_s_shift,j,i)
1513	ENDDO
1514	ENDDO
1515	ENDIF
1516
1517	!
1518	!-- Initialization of the turbulence recycling method
1519	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1520	turbulent_inflow ) THEN
1521	!
1522	!-- First store the profiles to be used at the inflow.
1523	!-- These profiles are the (temporally) and horizontally averaged vertical
1524	!-- profiles from the prerun. Alternatively, prescribed profiles
1525	!-- for u,v-components can be used.
1526	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,7) )
1527
1528	IF ( use_prescribed_profile_data ) THEN
1529	mean_inflow_profiles(:,1) = u_init ! u
1530	mean_inflow_profiles(:,2) = v_init ! v
1531	ELSE
1532	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
1533	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
1534	ENDIF
1535	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
1536	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
1537	IF ( humidity ) &
1538	mean_inflow_profiles(:,6) = hom_sum(:,41,0) ! q
1539	IF ( passive_scalar ) &
1540	mean_inflow_profiles(:,7) = hom_sum(:,115,0) ! s
1541	!
1542	!-- In case of complex terrain, determine vertical displacement at inflow
1543	!-- boundary and adjust mean inflow profiles
1544	IF ( complex_terrain ) THEN
1545	IF ( nxlg <= 0 .AND. nxrg >= 0 .AND. nysg <= 0 .AND. nyng >= 0 ) THEN
1546	nz_u_shift_l = get_topography_top_index( 0, 0, 'u' )
1547	nz_v_shift_l = get_topography_top_index( 0, 0, 'v' )
1548	nz_w_shift_l = get_topography_top_index( 0, 0, 'w' )
1549	nz_s_shift_l = get_topography_top_index( 0, 0, 's' )
1550	ELSE
1551	nz_u_shift_l = 0
1552	nz_v_shift_l = 0
1553	nz_w_shift_l = 0
1554	nz_s_shift_l = 0
1555	ENDIF
1556
1557	#if defined( __parallel )
1558	CALL MPI_ALLREDUCE(nz_u_shift_l, nz_u_shift, 1, MPI_INTEGER, &
1559	MPI_MAX, comm2d, ierr)
1560	CALL MPI_ALLREDUCE(nz_v_shift_l, nz_v_shift, 1, MPI_INTEGER, &
1561	MPI_MAX, comm2d, ierr)
1562	CALL MPI_ALLREDUCE(nz_w_shift_l, nz_w_shift, 1, MPI_INTEGER, &
1563	MPI_MAX, comm2d, ierr)
1564	CALL MPI_ALLREDUCE(nz_s_shift_l, nz_s_shift, 1, MPI_INTEGER, &
1565	MPI_MAX, comm2d, ierr)
1566	#else
1567	nz_u_shift = nz_u_shift_l
1568	nz_v_shift = nz_v_shift_l
1569	nz_w_shift = nz_w_shift_l
1570	nz_s_shift = nz_s_shift_l
1571	#endif
1572
1573	mean_inflow_profiles(:,1) = 0.0_wp
1574	mean_inflow_profiles(nz_u_shift:nzt+1,1) = hom_sum(0:nzt+1-nz_u_shift,1,0) ! u
1575
1576	mean_inflow_profiles(:,2) = 0.0_wp
1577	mean_inflow_profiles(nz_v_shift:nzt+1,2) = hom_sum(0:nzt+1-nz_v_shift,2,0) ! v
1578
1579	mean_inflow_profiles(nz_s_shift:nzt+1,4) = hom_sum(0:nzt+1-nz_s_shift,4,0) ! pt
1580	mean_inflow_profiles(nz_s_shift:nzt+1,5) = hom_sum(0:nzt+1-nz_s_shift,8,0) ! e
1581
1582	ENDIF
1583
1584	!
1585	!-- If necessary, adjust the horizontal flow field to the prescribed
1586	!-- profiles
1587	IF ( use_prescribed_profile_data ) THEN
1588	DO i = nxlg, nxrg
1589	DO j = nysg, nyng
1590	DO k = nzb, nzt+1
1591	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
1592	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
1593	ENDDO
1594	ENDDO
1595	ENDDO
1596	ENDIF
1597
1598	!
1599	!-- Use these mean profiles at the inflow (provided that Dirichlet
1600	!-- conditions are used)
1601	IF ( inflow_l ) THEN
1602	DO j = nysg, nyng
1603	DO k = nzb, nzt+1
1604	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
1605	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
1606	w(k,j,nxlg:-1) = 0.0_wp
1607	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
1608	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
1609	IF ( humidity ) &
1610	q(k,j,nxlg:-1) = mean_inflow_profiles(k,6)
1611	IF ( passive_scalar ) &
1612	s(k,j,nxlg:-1) = mean_inflow_profiles(k,7)
1613	ENDDO
1614	ENDDO
1615	ENDIF
1616
1617	!
1618	!-- Calculate the damping factors to be used at the inflow. For a
1619	!-- turbulent inflow the turbulent fluctuations have to be limited
1620	!-- vertically because otherwise the turbulent inflow layer will grow
1621	!-- in time.
1622	IF ( inflow_damping_height == 9999999.9_wp ) THEN
1623	!
1624	!-- Default: use the inversion height calculated by the prerun; if
1625	!-- this is zero, inflow_damping_height must be explicitly
1626	!-- specified.
1627	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
1628	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
1629	ELSE
1630	WRITE( message_string, * ) 'inflow_damping_height must be ', &
1631	'explicitly specified because&the inversion height ', &
1632	'calculated by the prerun is zero.'
1633	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
1634	ENDIF
1635
1636	ENDIF
1637
1638	IF ( inflow_damping_width == 9999999.9_wp ) THEN
1639	!
1640	!-- Default for the transition range: one tenth of the undamped
1641	!-- layer
1642	inflow_damping_width = 0.1_wp * inflow_damping_height
1643
1644	ENDIF
1645
1646	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
1647
1648	DO k = nzb, nzt+1
1649
1650	IF ( zu(k) <= inflow_damping_height ) THEN
1651	inflow_damping_factor(k) = 1.0_wp
1652	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
1653	inflow_damping_factor(k) = 1.0_wp - &
1654	( zu(k) - inflow_damping_height ) / &
1655	inflow_damping_width
1656	ELSE
1657	inflow_damping_factor(k) = 0.0_wp
1658	ENDIF
1659
1660	ENDDO
1661
1662	ENDIF
1663
1664	!
1665	!-- Inside buildings set velocities and TKE back to zero
1666	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1667	topography /= 'flat' ) THEN
1668	!
1669	!-- Inside buildings set velocities and TKE back to zero.
1670	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
1671	!-- maybe revise later.
1672	DO i = nxlg, nxrg
1673	DO j = nysg, nyng
1674	DO k = nzb, nzt
1675	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, &
1676	BTEST( wall_flags_0(k,j,i), 1 ) )
1677	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, &
1678	BTEST( wall_flags_0(k,j,i), 2 ) )
1679	w(k,j,i) = MERGE( w(k,j,i), 0.0_wp, &
1680	BTEST( wall_flags_0(k,j,i), 3 ) )
1681	e(k,j,i) = MERGE( e(k,j,i), 0.0_wp, &
1682	BTEST( wall_flags_0(k,j,i), 0 ) )
1683	tu_m(k,j,i) = MERGE( tu_m(k,j,i), 0.0_wp, &
1684	BTEST( wall_flags_0(k,j,i), 1 ) )
1685	tv_m(k,j,i) = MERGE( tv_m(k,j,i), 0.0_wp, &
1686	BTEST( wall_flags_0(k,j,i), 2 ) )
1687	tw_m(k,j,i) = MERGE( tw_m(k,j,i), 0.0_wp, &
1688	BTEST( wall_flags_0(k,j,i), 3 ) )
1689	te_m(k,j,i) = MERGE( te_m(k,j,i), 0.0_wp, &
1690	BTEST( wall_flags_0(k,j,i), 0 ) )
1691	tpt_m(k,j,i) = MERGE( tpt_m(k,j,i), 0.0_wp, &
1692	BTEST( wall_flags_0(k,j,i), 0 ) )
1693	ENDDO
1694	ENDDO
1695	ENDDO
1696
1697	ENDIF
1698
1699	!
1700	!-- Calculate initial temperature field and other constants used in case
1701	!-- of a sloping surface
1702	IF ( sloping_surface ) CALL init_slope
1703
1704	!
1705	!-- Initialize new time levels (only done in order to set boundary values
1706	!-- including ghost points)
1707	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1708	IF ( humidity ) THEN
1709	q_p = q
1710	IF ( cloud_physics .AND. microphysics_morrison ) THEN
1711	qc_p = qc
1712	nc_p = nc
1713	ENDIF
1714	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1715	qr_p = qr
1716	nr_p = nr
1717	ENDIF
1718	ENDIF
1719	IF ( passive_scalar ) s_p = s
1720	IF ( ocean ) sa_p = sa
1721
1722	!
1723	!-- Allthough tendency arrays are set in prognostic_equations, they have
1724	!-- have to be predefined here because they are used (but multiplied with 0)
1725	!-- there before they are set.
1726	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
1727	IF ( humidity ) THEN
1728	tq_m = 0.0_wp
1729	IF ( cloud_physics .AND. microphysics_morrison ) THEN
1730	tqc_m = 0.0_wp
1731	tnc_m = 0.0_wp
1732	ENDIF
1733	IF ( cloud_physics .AND. microphysics_seifert ) THEN
1734	tqr_m = 0.0_wp
1735	tnr_m = 0.0_wp
1736	ENDIF
1737	ENDIF
1738	IF ( passive_scalar ) ts_m = 0.0_wp
1739	IF ( ocean ) tsa_m = 0.0_wp
1740	!
1741	!-- Initialize synthetic turbulence generator in case of restart.
1742	IF ( TRIM( initializing_actions ) == 'read_restart_data' .AND. &
1743	use_synthetic_turbulence_generator ) CALL stg_init
1744
1745	CALL location_message( 'finished', .TRUE. )
1746
1747	ELSE
1748	!
1749	!-- Actually this part of the programm should not be reached
1750	message_string = 'unknown initializing problem'
1751	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
1752	ENDIF
1753
1754
1755	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1756	!
1757	!-- Initialize old timelevels needed for radiation boundary conditions
1758	IF ( outflow_l ) THEN
1759	u_m_l(:,:,:) = u(:,:,1:2)
1760	v_m_l(:,:,:) = v(:,:,0:1)
1761	w_m_l(:,:,:) = w(:,:,0:1)
1762	ENDIF
1763	IF ( outflow_r ) THEN
1764	u_m_r(:,:,:) = u(:,:,nx-1:nx)
1765	v_m_r(:,:,:) = v(:,:,nx-1:nx)
1766	w_m_r(:,:,:) = w(:,:,nx-1:nx)
1767	ENDIF
1768	IF ( outflow_s ) THEN
1769	u_m_s(:,:,:) = u(:,0:1,:)
1770	v_m_s(:,:,:) = v(:,1:2,:)
1771	w_m_s(:,:,:) = w(:,0:1,:)
1772	ENDIF
1773	IF ( outflow_n ) THEN
1774	u_m_n(:,:,:) = u(:,ny-1:ny,:)
1775	v_m_n(:,:,:) = v(:,ny-1:ny,:)
1776	w_m_n(:,:,:) = w(:,ny-1:ny,:)
1777	ENDIF
1778
1779	ENDIF
1780
1781	!
1782	!-- Calculate the initial volume flow at the right and north boundary
1783	IF ( conserve_volume_flow ) THEN
1784
1785	IF ( use_prescribed_profile_data ) THEN
1786
1787	volume_flow_initial_l = 0.0_wp
1788	volume_flow_area_l = 0.0_wp
1789
1790	IF ( nxr == nx ) THEN
1791	DO j = nys, nyn
1792	DO k = nzb+1, nzt
1793	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1794	u_init(k) * dzw(k) &
1795	* MERGE( 1.0_wp, 0.0_wp, &
1796	BTEST( wall_flags_0(k,j,nxr), 1 )&
1797	)
1798
1799	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
1800	* MERGE( 1.0_wp, 0.0_wp, &
1801	BTEST( wall_flags_0(k,j,nxr), 1 )&
1802	)
1803	ENDDO
1804	ENDDO
1805	ENDIF
1806
1807	IF ( nyn == ny ) THEN
1808	DO i = nxl, nxr
1809	DO k = nzb+1, nzt
1810	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1811	v_init(k) * dzw(k) &
1812	* MERGE( 1.0_wp, 0.0_wp, &
1813	BTEST( wall_flags_0(k,nyn,i), 2 )&
1814	)
1815	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
1816	* MERGE( 1.0_wp, 0.0_wp, &
1817	BTEST( wall_flags_0(k,nyn,i), 2 )&
1818	)
1819	ENDDO
1820	ENDDO
1821	ENDIF
1822
1823	#if defined( __parallel )
1824	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1825	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1826	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1827	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1828
1829	#else
1830	volume_flow_initial = volume_flow_initial_l
1831	volume_flow_area = volume_flow_area_l
1832	#endif
1833
1834	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1835
1836	volume_flow_initial_l = 0.0_wp
1837	volume_flow_area_l = 0.0_wp
1838
1839	IF ( nxr == nx ) THEN
1840	DO j = nys, nyn
1841	DO k = nzb+1, nzt
1842	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1843	hom_sum(k,1,0) * dzw(k) &
1844	* MERGE( 1.0_wp, 0.0_wp, &
1845	BTEST( wall_flags_0(k,j,nx), 1 ) &
1846	)
1847	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
1848	* MERGE( 1.0_wp, 0.0_wp, &
1849	BTEST( wall_flags_0(k,j,nx), 1 ) &
1850	)
1851	ENDDO
1852	ENDDO
1853	ENDIF
1854
1855	IF ( nyn == ny ) THEN
1856	DO i = nxl, nxr
1857	DO k = nzb+1, nzt
1858	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1859	hom_sum(k,2,0) * dzw(k) &
1860	* MERGE( 1.0_wp, 0.0_wp, &
1861	BTEST( wall_flags_0(k,ny,i), 2 ) &
1862	)
1863	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
1864	* MERGE( 1.0_wp, 0.0_wp, &
1865	BTEST( wall_flags_0(k,ny,i), 2 ) &
1866	)
1867	ENDDO
1868	ENDDO
1869	ENDIF
1870
1871	#if defined( __parallel )
1872	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1873	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1874	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1875	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1876
1877	#else
1878	volume_flow_initial = volume_flow_initial_l
1879	volume_flow_area = volume_flow_area_l
1880	#endif
1881
1882	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1883
1884	volume_flow_initial_l = 0.0_wp
1885	volume_flow_area_l = 0.0_wp
1886
1887	IF ( nxr == nx ) THEN
1888	DO j = nys, nyn
1889	DO k = nzb+1, nzt
1890	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1891	u(k,j,nx) * dzw(k) &
1892	* MERGE( 1.0_wp, 0.0_wp, &
1893	BTEST( wall_flags_0(k,j,nx), 1 ) &
1894	)
1895	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
1896	* MERGE( 1.0_wp, 0.0_wp, &
1897	BTEST( wall_flags_0(k,j,nx), 1 ) &
1898	)
1899	ENDDO
1900	ENDDO
1901	ENDIF
1902
1903	IF ( nyn == ny ) THEN
1904	DO i = nxl, nxr
1905	DO k = nzb+1, nzt
1906	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1907	v(k,ny,i) * dzw(k) &
1908	* MERGE( 1.0_wp, 0.0_wp, &
1909	BTEST( wall_flags_0(k,ny,i), 2 ) &
1910	)
1911	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
1912	* MERGE( 1.0_wp, 0.0_wp, &
1913	BTEST( wall_flags_0(k,ny,i), 2 ) &
1914	)
1915	ENDDO
1916	ENDDO
1917	ENDIF
1918
1919	#if defined( __parallel )
1920	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1921	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1922	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1923	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1924
1925	#else
1926	volume_flow_initial = volume_flow_initial_l
1927	volume_flow_area = volume_flow_area_l
1928	#endif
1929
1930	ENDIF
1931
1932	!
1933	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
1934	!-- from u\|v_bulk instead
1935	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
1936	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
1937	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
1938	ENDIF
1939
1940	ENDIF
1941	!
1942	!-- Finally, if random_heatflux is set, disturb shf at horizontal
1943	!-- surfaces. Actually, this should be done in surface_mod, where all other
1944	!-- initializations of surface quantities are done. However, this
1945	!-- would create a ring dependency, hence, it is done here. Maybe delete
1946	!-- disturb_heatflux and tranfer the respective code directly into the
1947	!-- initialization in surface_mod.
1948	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1949	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1950
1951	IF ( use_surface_fluxes .AND. constant_heatflux .AND. &
1952	random_heatflux ) THEN
1953	IF ( surf_def_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_def_h(0) )
1954	IF ( surf_lsm_h%ns >= 1 ) CALL disturb_heatflux( surf_lsm_h )
1955	IF ( surf_usm_h%ns >= 1 ) CALL disturb_heatflux( surf_usm_h )
1956	ENDIF
1957	ENDIF
1958
1959	!
1960	!-- Initialize surface forcing corresponding to large-scale forcing. Therein,
1961	!-- initialize heat-fluxes, etc. via datatype. Revise it later!
1962	IF ( large_scale_forcing .AND. lsf_surf ) THEN
1963	IF ( use_surface_fluxes .AND. constant_heatflux ) THEN
1964	CALL ls_forcing_surf ( simulated_time )
1965	ENDIF
1966	ENDIF
1967	!
1968	!-- Initialize quantities for special advections schemes
1969	CALL init_advec
1970
1971	!
1972	!-- Impose random perturbation on the horizontal velocity field and then
1973	!-- remove the divergences from the velocity field at the initial stage
1974	IF ( create_disturbances .AND. disturbance_energy_limit /= 0.0_wp .AND. &
1975	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1976	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1977
1978	CALL location_message( 'creating initial disturbances', .FALSE. )
1979	CALL disturb_field( 'u', tend, u )
1980	CALL disturb_field( 'v', tend, v )
1981	CALL location_message( 'finished', .TRUE. )
1982
1983	CALL location_message( 'calling pressure solver', .FALSE. )
1984	n_sor = nsor_ini
1985	CALL pres
1986	n_sor = nsor
1987	CALL location_message( 'finished', .TRUE. )
1988
1989	ENDIF
1990
1991	!
1992	!-- If required, initialize quantities needed for the plant canopy model
1993	IF ( plant_canopy ) THEN
1994	CALL location_message( 'initializing plant canopy model', .FALSE. )
1995	CALL pcm_init
1996	CALL location_message( 'finished', .TRUE. )
1997	ENDIF
1998
1999	!
2000	!-- If required, initialize dvrp-software
2001	IF ( dt_dvrp /= 9999999.9_wp ) CALL init_dvrp
2002
2003	IF ( ocean ) THEN
2004	!
2005	!-- Initialize quantities needed for the ocean model
2006	CALL init_ocean
2007
2008	ELSE
2009	!
2010	!-- Initialize quantities for handling cloud physics
2011	!-- This routine must be called before lpm_init, because
2012	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
2013	!-- lpm_init) is not defined.
2014	CALL init_cloud_physics
2015	!
2016	!-- Initialize bulk cloud microphysics
2017	CALL microphysics_init
2018	ENDIF
2019
2020	!
2021	!-- If required, initialize particles
2022	IF ( particle_advection ) CALL lpm_init
2023
2024	!
2025	!-- If required, initialize quantities needed for the LSM
2026	IF ( land_surface ) THEN
2027	CALL location_message( 'initializing land surface model', .FALSE. )
2028	CALL lsm_init
2029	CALL location_message( 'finished', .TRUE. )
2030	ENDIF
2031
2032	!
2033	!-- Initialize surface layer (done after LSM as roughness length are required
2034	!-- for initialization
2035	IF ( constant_flux_layer ) THEN
2036	CALL location_message( 'initializing surface layer', .FALSE. )
2037	CALL init_surface_layer_fluxes
2038	CALL location_message( 'finished', .TRUE. )
2039	ENDIF
2040
2041	!
2042	!-- If required, initialize radiation model
2043	IF ( radiation ) THEN
2044	CALL location_message( 'initializing radiation model', .FALSE. )
2045	CALL radiation_init
2046	CALL location_message( 'finished', .TRUE. )
2047	ENDIF
2048
2049
2050	!
2051	!-- Temporary solution to add LSM and radiation time series to the default
2052	!-- output
2053	IF ( land_surface .OR. radiation ) THEN
2054	IF ( TRIM( radiation_scheme ) == 'rrtmg' ) THEN
2055	dots_num = dots_num + 15
2056	ELSE
2057	dots_num = dots_num + 11
2058	ENDIF
2059	ENDIF
2060
2061	!
2062	!-- If required, initialize urban surface model
2063	IF ( urban_surface ) THEN
2064	CALL location_message( 'initializing urban surface model', .FALSE. )
2065	CALL usm_init_urban_surface
2066	CALL location_message( 'finished', .TRUE. )
2067	ENDIF
2068
2069	!
2070	!-- If required, initialize quantities needed for the wind turbine model
2071	IF ( wind_turbine ) THEN
2072	CALL location_message( 'initializing wind turbine model', .FALSE. )
2073	CALL wtm_init
2074	CALL location_message( 'finished', .TRUE. )
2075	ENDIF
2076
2077
2078	!
2079	!-- Initialize the ws-scheme.
2080	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
2081
2082	!
2083	!-- Setting weighting factors for calculation of perturbation pressure
2084	!-- and turbulent quantities from the RK substeps
2085	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
2086
2087	weight_substep(1) = 1._wp/6._wp
2088	weight_substep(2) = 3._wp/10._wp
2089	weight_substep(3) = 8._wp/15._wp
2090
2091	weight_pres(1) = 1._wp/3._wp
2092	weight_pres(2) = 5._wp/12._wp
2093	weight_pres(3) = 1._wp/4._wp
2094
2095	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
2096
2097	weight_substep(1) = 1._wp/2._wp
2098	weight_substep(2) = 1._wp/2._wp
2099
2100	weight_pres(1) = 1._wp/2._wp
2101	weight_pres(2) = 1._wp/2._wp
2102
2103	ELSE ! for Euler-method
2104
2105	weight_substep(1) = 1.0_wp
2106	weight_pres(1) = 1.0_wp
2107
2108	ENDIF
2109
2110	!
2111	!-- Initialize Rayleigh damping factors
2112	rdf = 0.0_wp
2113	rdf_sc = 0.0_wp
2114	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
2115	IF ( .NOT. ocean ) THEN
2116	DO k = nzb+1, nzt
2117	IF ( zu(k) >= rayleigh_damping_height ) THEN
2118	rdf(k) = rayleigh_damping_factor * &
2119	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
2120	/ ( zu(nzt) - rayleigh_damping_height ) ) &
2121	)**2
2122	ENDIF
2123	ENDDO
2124	ELSE
2125	DO k = nzt, nzb+1, -1
2126	IF ( zu(k) <= rayleigh_damping_height ) THEN
2127	rdf(k) = rayleigh_damping_factor * &
2128	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
2129	/ ( rayleigh_damping_height - zu(nzb+1) ) ) &
2130	)**2
2131	ENDIF
2132	ENDDO
2133	ENDIF
2134	ENDIF
2135	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
2136
2137	!
2138	!-- Initialize the starting level and the vertical smoothing factor used for
2139	!-- the external pressure gradient
2140	dp_smooth_factor = 1.0_wp
2141	IF ( dp_external ) THEN
2142	!
2143	!-- Set the starting level dp_level_ind_b only if it has not been set before
2144	!-- (e.g. in init_grid).
2145	IF ( dp_level_ind_b == 0 ) THEN
2146	ind_array = MINLOC( ABS( dp_level_b - zu ) )
2147	dp_level_ind_b = ind_array(1) - 1 + nzb
2148	! MINLOC uses lower array bound 1
2149	ENDIF
2150	IF ( dp_smooth ) THEN
2151	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
2152	DO k = dp_level_ind_b+1, nzt
2153	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
2154	( REAL( k - dp_level_ind_b, KIND=wp ) / &
2155	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
2156	ENDDO
2157	ENDIF
2158	ENDIF
2159
2160	!
2161	!-- Initialize damping zone for the potential temperature in case of
2162	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
2163	!-- at the inflow boundary and decreases to zero at pt_damping_width.
2164	ptdf_x = 0.0_wp
2165	ptdf_y = 0.0_wp
2166	IF ( bc_lr_dirrad ) THEN
2167	DO i = nxl, nxr
2168	IF ( ( i * dx ) < pt_damping_width ) THEN
2169	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
2170	REAL( pt_damping_width - i * dx, KIND=wp ) / ( &
2171	REAL( pt_damping_width, KIND=wp ) ) ) )**2
2172	ENDIF
2173	ENDDO
2174	ELSEIF ( bc_lr_raddir ) THEN
2175	DO i = nxl, nxr
2176	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
2177	ptdf_x(i) = pt_damping_factor * &
2178	SIN( pi * 0.5_wp * &
2179	( ( i - nx ) * dx + pt_damping_width ) / &
2180	REAL( pt_damping_width, KIND=wp ) )**2
2181	ENDIF
2182	ENDDO
2183	ELSEIF ( bc_ns_dirrad ) THEN
2184	DO j = nys, nyn
2185	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
2186	ptdf_y(j) = pt_damping_factor * &
2187	SIN( pi * 0.5_wp * &
2188	( ( j - ny ) * dy + pt_damping_width ) / &
2189	REAL( pt_damping_width, KIND=wp ) )**2
2190	ENDIF
2191	ENDDO
2192	ELSEIF ( bc_ns_raddir ) THEN
2193	DO j = nys, nyn
2194	IF ( ( j * dy ) < pt_damping_width ) THEN
2195	ptdf_y(j) = pt_damping_factor * &
2196	SIN( pi * 0.5_wp * &
2197	( pt_damping_width - j * dy ) / &
2198	REAL( pt_damping_width, KIND=wp ) )**2
2199	ENDIF
2200	ENDDO
2201	ENDIF
2202
2203	!
2204	!-- Pre-set masks for regional statistics. Default is the total model domain.
2205	!-- Ghost points are excluded because counting values at the ghost boundaries
2206	!-- would bias the statistics
2207	rmask = 1.0_wp
2208	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
2209	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
2210
2211	!
2212	!-- User-defined initializing actions. Check afterwards, if maximum number
2213	!-- of allowed timeseries is exceeded
2214	CALL user_init
2215
2216	IF ( dots_num > dots_max ) THEN
2217	WRITE( message_string, * ) 'number of time series quantities exceeds', &
2218	' its maximum of dots_max = ', dots_max, &
2219	' &Please increase dots_max in modules.f90.'
2220	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
2221	ENDIF
2222
2223	!
2224	!-- Input binary data file is not needed anymore. This line must be placed
2225	!-- after call of user_init!
2226	CALL close_file( 13 )
2227
2228	!
2229	!-- Compute total sum of active mask grid points
2230	!-- and the mean surface level height for each statistic region
2231	!-- ngp_2dh: number of grid points of a horizontal cross section through the
2232	!-- total domain
2233	!-- ngp_3d: number of grid points of the total domain
2234	ngp_2dh_outer_l = 0
2235	ngp_2dh_outer = 0
2236	ngp_2dh_s_inner_l = 0
2237	ngp_2dh_s_inner = 0
2238	ngp_2dh_l = 0
2239	ngp_2dh = 0
2240	ngp_3d_inner_l = 0.0_wp
2241	ngp_3d_inner = 0
2242	ngp_3d = 0
2243	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
2244
2245	mean_surface_level_height = 0.0_wp
2246	mean_surface_level_height_l = 0.0_wp
2247
2248	!
2249	!-- To do: New concept for these non-topography grid points!
2250	DO sr = 0, statistic_regions
2251	DO i = nxl, nxr
2252	DO j = nys, nyn
2253	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
2254	!
2255	!-- All xy-grid points
2256	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
2257	!
2258	!-- Determine mean surface-level height. In case of downward-
2259	!-- facing walls are present, more than one surface level exist.
2260	!-- In this case, use the lowest surface-level height.
2261	IF ( surf_def_h(0)%start_index(j,i) <= &
2262	surf_def_h(0)%end_index(j,i) ) THEN
2263	m = surf_def_h(0)%start_index(j,i)
2264	k = surf_def_h(0)%k(m)
2265	mean_surface_level_height_l(sr) = &
2266	mean_surface_level_height_l(sr) + zw(k-1)
2267	ENDIF
2268	IF ( surf_lsm_h%start_index(j,i) <= &
2269	surf_lsm_h%end_index(j,i) ) THEN
2270	m = surf_lsm_h%start_index(j,i)
2271	k = surf_lsm_h%k(m)
2272	mean_surface_level_height_l(sr) = &
2273	mean_surface_level_height_l(sr) + zw(k-1)
2274	ENDIF
2275	IF ( surf_usm_h%start_index(j,i) <= &
2276	surf_usm_h%end_index(j,i) ) THEN
2277	m = surf_usm_h%start_index(j,i)
2278	k = surf_usm_h%k(m)
2279	mean_surface_level_height_l(sr) = &
2280	mean_surface_level_height_l(sr) + zw(k-1)
2281	ENDIF
2282
2283	k_surf = k - 1
2284
2285	DO k = nzb, nzt+1
2286	!
2287	!-- xy-grid points above topography
2288	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + &
2289	MERGE( 1, 0, BTEST( wall_flags_0(k,j,i), 24 ) )
2290
2291	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + &
2292	MERGE( 1, 0, BTEST( wall_flags_0(k,j,i), 22 ) )
2293
2294	ENDDO
2295	!
2296	!-- All grid points of the total domain above topography
2297	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + ( nz - k_surf + 2 )
2298
2299
2300
2301	ENDIF
2302	ENDDO
2303	ENDDO
2304	ENDDO
2305
2306	sr = statistic_regions + 1
2307	#if defined( __parallel )
2308	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2309	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
2310	comm2d, ierr )
2311	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2312	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
2313	MPI_INTEGER, MPI_SUM, comm2d, ierr )
2314	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2315	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
2316	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
2317	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2318	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
2319	MPI_SUM, comm2d, ierr )
2320	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
2321	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
2322	CALL MPI_ALLREDUCE( mean_surface_level_height_l(0), &
2323	mean_surface_level_height(0), sr, MPI_REAL, &
2324	MPI_SUM, comm2d, ierr )
2325	mean_surface_level_height = mean_surface_level_height / REAL( ngp_2dh )
2326	#else
2327	ngp_2dh = ngp_2dh_l
2328	ngp_2dh_outer = ngp_2dh_outer_l
2329	ngp_2dh_s_inner = ngp_2dh_s_inner_l
2330	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
2331	mean_surface_level_height = mean_surface_level_height_l / REAL( ngp_2dh_l )
2332	#endif
2333
2334	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
2335	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
2336
2337	!
2338	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
2339	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
2340	!-- the respective subdomain lie below the surface topography
2341	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
2342	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
2343	ngp_3d_inner(:) )
2344	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
2345
2346	DEALLOCATE( mean_surface_level_height_l, ngp_2dh_l, ngp_2dh_outer_l, &
2347	ngp_3d_inner_l, ngp_3d_inner_tmp )
2348
2349	CALL location_message( 'leaving init_3d_model', .TRUE. )
2350
2351	END SUBROUTINE init_3d_model

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