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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1849

Last change on this file since 1849 was 1849, checked in by hoffmann, 8 years ago
lpm_droplet_condensation improved, microphysics partially modularized
Property svn:keywords set to `Id`
File size: 69.8 KB

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

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