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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1783

Last change on this file since 1783 was 1783, checked in by raasch, 8 years ago
NetCDF routines modularized; new parameter netcdf_deflate; further changes in the pmc
Property svn:keywords set to `Id`
File size: 68.2 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 1997-2015 Leibniz Universitaet Hannover
17	!--------------------------------------------------------------------------------!
18	!
19	! Current revisions:
20	! ------------------
21	! netcdf module name changed + related changes
22	!
23	! Former revisions:
24	! -----------------
25	! $Id: init_3d_model.f90 1783 2016-03-06 18:36:17Z raasch $
26	!
27	! 1764 2016-02-28 12:45:19Z raasch
28	! bugfix: increase size of volume_flow_area_l and volume_flow_initial_l by 1
29	!
30	! 1762 2016-02-25 12:31:13Z hellstea
31	! Introduction of nested domain feature
32	!
33	! 1738 2015-12-18 13:56:05Z raasch
34	! calculate mean surface level height for each statistic region
35	!
36	! 1734 2015-12-02 12:17:12Z raasch
37	! no initial disturbances in case that the disturbance energy limit has been
38	! set zero
39	!
40	! 1707 2015-11-02 15:24:52Z maronga
41	! Bugfix: transfer of Richardson number from 1D model to Obukhov length caused
42	! devision by zero in neutral stratification
43	!
44	! 1691 2015-10-26 16:17:44Z maronga
45	! Call to init_surface_layer added. rif is replaced by ol and zeta.
46	!
47	! 1682 2015-10-07 23:56:08Z knoop
48	! Code annotations made doxygen readable
49	!
50	! 1615 2015-07-08 18:49:19Z suehring
51	! Enable turbulent inflow for passive_scalar and humidity
52	!
53	! 1585 2015-04-30 07:05:52Z maronga
54	! Initialization of radiation code is now done after LSM initializtion
55	!
56	! 1575 2015-03-27 09:56:27Z raasch
57	! adjustments for psolver-queries
58	!
59	! 1551 2015-03-03 14:18:16Z maronga
60	! Allocation of land surface arrays is now done in the subroutine init_lsm_arrays,
61	! which is part of land_surface_model.
62	!
63	! 1507 2014-12-10 12:14:18Z suehring
64	! Bugfix: set horizontal velocity components to zero inside topography
65	!
66	! 1496 2014-12-02 17:25:50Z maronga
67	! Added initialization of the land surface and radiation schemes
68	!
69	! 1484 2014-10-21 10:53:05Z kanani
70	! Changes due to new module structure of the plant canopy model:
71	! canopy-related initialization (e.g. lad and canopy_heat_flux) moved to new
72	! subroutine init_plant_canopy within the module plant_canopy_model_mod,
73	! call of subroutine init_plant_canopy added.
74	!
75	! 1431 2014-07-15 14:47:17Z suehring
76	! var_d added, in order to normalize spectra.
77	!
78	! 1429 2014-07-15 12:53:45Z knoop
79	! Ensemble run capability added to parallel random number generator
80	!
81	! 1411 2014-05-16 18:01:51Z suehring
82	! Initial horizontal velocity profiles were not set to zero at the first vertical
83	! grid level in case of non-cyclic lateral boundary conditions.
84	!
85	! 1406 2014-05-16 13:47:01Z raasch
86	! bugfix: setting of initial velocities at k=1 to zero not in case of a
87	! no-slip boundary condition for uv
88	!
89	! 1402 2014-05-09 14:25:13Z raasch
90	! location messages modified
91	!
92	! 1400 2014-05-09 14:03:54Z knoop
93	! Parallel random number generator added
94	!
95	! 1384 2014-05-02 14:31:06Z raasch
96	! location messages added
97	!
98	! 1361 2014-04-16 15:17:48Z hoffmann
99	! tend_* removed
100	! Bugfix: w_subs is not allocated anymore if it is already allocated
101	!
102	! 1359 2014-04-11 17:15:14Z hoffmann
103	! module lpm_init_mod added to use statements, because lpm_init has become a
104	! module
105	!
106	! 1353 2014-04-08 15:21:23Z heinze
107	! REAL constants provided with KIND-attribute
108	!
109	! 1340 2014-03-25 19:45:13Z kanani
110	! REAL constants defined as wp-kind
111	!
112	! 1322 2014-03-20 16:38:49Z raasch
113	! REAL constants defined as wp-kind
114	! module interfaces removed
115	!
116	! 1320 2014-03-20 08:40:49Z raasch
117	! ONLY-attribute added to USE-statements,
118	! kind-parameters added to all INTEGER and REAL declaration statements,
119	! kinds are defined in new module kinds,
120	! revision history before 2012 removed,
121	! comment fields (!:) to be used for variable explanations added to
122	! all variable declaration statements
123	!
124	! 1316 2014-03-17 07:44:59Z heinze
125	! Bugfix: allocation of w_subs
126	!
127	! 1299 2014-03-06 13:15:21Z heinze
128	! Allocate w_subs due to extension of large scale subsidence in combination
129	! with large scale forcing data (LSF_DATA)
130	!
131	! 1241 2013-10-30 11:36:58Z heinze
132	! Overwrite initial profiles in case of nudging
133	! Inititialize shf and qsws in case of large_scale_forcing
134	!
135	! 1221 2013-09-10 08:59:13Z raasch
136	! +rflags_s_inner in copyin statement, use copyin for most arrays instead of
137	! copy
138	!
139	! 1212 2013-08-15 08:46:27Z raasch
140	! array tri is allocated and included in data copy statement
141	!
142	! 1195 2013-07-01 12:27:57Z heinze
143	! Bugfix: move allocation of ref_state to parin.f90 and read_var_list.f90
144	!
145	! 1179 2013-06-14 05:57:58Z raasch
146	! allocate and set ref_state to be used in buoyancy terms
147	!
148	! 1171 2013-05-30 11:27:45Z raasch
149	! diss array is allocated with full size if accelerator boards are used
150	!
151	! 1159 2013-05-21 11:58:22Z fricke
152	! -bc_lr_dirneu, bc_lr_neudir, bc_ns_dirneu, bc_ns_neudir
153	!
154	! 1153 2013-05-10 14:33:08Z raasch
155	! diss array is allocated with dummy elements even if it is not needed
156	! (required by PGI 13.4 / CUDA 5.0)
157	!
158	! 1115 2013-03-26 18:16:16Z hoffmann
159	! unused variables removed
160	!
161	! 1113 2013-03-10 02:48:14Z raasch
162	! openACC directive modified
163	!
164	! 1111 2013-03-08 23:54:10Z raasch
165	! openACC directives added for pres
166	! array diss allocated only if required
167	!
168	! 1092 2013-02-02 11:24:22Z raasch
169	! unused variables removed
170	!
171	! 1065 2012-11-22 17:42:36Z hoffmann
172	! allocation of diss (dissipation rate) in case of turbulence = .TRUE. added
173	!
174	! 1053 2012-11-13 17:11:03Z hoffmann
175	! allocation and initialisation of necessary data arrays for the two-moment
176	! cloud physics scheme the two new prognostic equations (nr, qr):
177	! +dr, lambda_r, mu_r, sed_, xr, s, sws, swst, , _p, t_m, _1, _2, _3,
178	! +tend_*, prr
179	!
180	! 1036 2012-10-22 13:43:42Z raasch
181	! code put under GPL (PALM 3.9)
182	!
183	! 1032 2012-10-21 13:03:21Z letzel
184	! save memory by not allocating pt_2 in case of neutral = .T.
185	!
186	! 1025 2012-10-07 16:04:41Z letzel
187	! bugfix: swap indices of mask for ghost boundaries
188	!
189	! 1015 2012-09-27 09:23:24Z raasch
190	! mask is set to zero for ghost boundaries
191	!
192	! 1010 2012-09-20 07:59:54Z raasch
193	! cpp switch __nopointer added for pointer free version
194	!
195	! 1003 2012-09-14 14:35:53Z raasch
196	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
197	!
198	! 1001 2012-09-13 14:08:46Z raasch
199	! all actions concerning leapfrog scheme removed
200	!
201	! 996 2012-09-07 10:41:47Z raasch
202	! little reformatting
203	!
204	! 978 2012-08-09 08:28:32Z fricke
205	! outflow damping layer removed
206	! roughness length for scalar quantites z0h added
207	! damping zone for the potential temperatur in case of non-cyclic lateral
208	! boundaries added
209	! initialization of ptdf_x, ptdf_y
210	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
211	!
212	! 849 2012-03-15 10:35:09Z raasch
213	! init_particles renamed lpm_init
214	!
215	! 825 2012-02-19 03:03:44Z raasch
216	! wang_collision_kernel renamed wang_kernel
217	!
218	! Revision 1.1 1998/03/09 16:22:22 raasch
219	! Initial revision
220	!
221	!
222	! Description:
223	! ------------
224	!> Allocation of arrays and initialization of the 3D model via
225	!> a) pre-run the 1D model
226	!> or
227	!> b) pre-set constant linear profiles
228	!> or
229	!> c) read values of a previous run
230	!------------------------------------------------------------------------------!
231	SUBROUTINE init_3d_model
232
233
234	USE advec_ws
235
236	USE arrays_3d
237
238	USE cloud_parameters, &
239	ONLY: nc_const, precipitation_amount, precipitation_rate, prr
240
241	USE constants, &
242	ONLY: pi
243
244	USE control_parameters
245
246	USE grid_variables, &
247	ONLY: dx, dy
248
249	USE indices
250
251	USE lpm_init_mod, &
252	ONLY: lpm_init
253
254	USE kinds
255
256	USE land_surface_model_mod, &
257	ONLY: init_lsm, init_lsm_arrays, land_surface
258
259	USE ls_forcing_mod
260
261	USE model_1d, &
262	ONLY: e1d, kh1d, km1d, l1d, rif1d, u1d, us1d, usws1d, v1d, vsws1d
263
264	USE netcdf_interface, &
265	ONLY: dots_max, dots_num
266
267	USE particle_attributes, &
268	ONLY: particle_advection, use_sgs_for_particles, wang_kernel
269
270	USE pegrid
271
272	USE plant_canopy_model_mod, &
273	ONLY: init_plant_canopy, plant_canopy
274
275	USE radiation_model_mod, &
276	ONLY: init_radiation, radiation
277
278	USE random_function_mod
279
280	USE random_generator_parallel, &
281	ONLY: random_number_parallel, random_seed_parallel, random_dummy, &
282	id_random_array, seq_random_array
283
284	USE statistics, &
285	ONLY: hom, hom_sum, mean_surface_level_height, pr_palm, rmask, &
286	spectrum_x, spectrum_y, statistic_regions, sums, sums_divnew_l, &
287	sums_divold_l, sums_l, sums_l_l, sums_up_fraction_l, &
288	sums_wsts_bc_l, ts_value, var_d, weight_pres, weight_substep
289
290	USE surface_layer_fluxes_mod, &
291	ONLY: init_surface_layer_fluxes
292
293	USE transpose_indices
294
295	IMPLICIT NONE
296
297	INTEGER(iwp) :: i !<
298	INTEGER(iwp) :: ind_array(1) !<
299	INTEGER(iwp) :: j !<
300	INTEGER(iwp) :: k !<
301	INTEGER(iwp) :: sr !<
302
303	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !<
304
305	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !<
306	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !<
307
308	REAL(wp), DIMENSION(1:3) :: volume_flow_area_l !<
309	REAL(wp), DIMENSION(1:3) :: volume_flow_initial_l !<
310
311	REAL(wp), DIMENSION(:), ALLOCATABLE :: mean_surface_level_height_l !<
312	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !<
313	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !<
314
315
316	CALL location_message( 'allocating arrays', .FALSE. )
317	!
318	!-- Allocate arrays
319	ALLOCATE( mean_surface_level_height(0:statistic_regions), &
320	mean_surface_level_height_l(0:statistic_regions), &
321	ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
322	ngp_3d(0:statistic_regions), &
323	ngp_3d_inner(0:statistic_regions), &
324	ngp_3d_inner_l(0:statistic_regions), &
325	ngp_3d_inner_tmp(0:statistic_regions), &
326	sums_divnew_l(0:statistic_regions), &
327	sums_divold_l(0:statistic_regions) )
328	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
329	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
330	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
331	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
332	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
333	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
334	sums(nzb:nzt+1,pr_palm+max_pr_user), &
335	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
336	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
337	sums_up_fraction_l(10,3,0:statistic_regions), &
338	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
339	ts_value(dots_max,0:statistic_regions) )
340	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
341
342	ALLOCATE( ol(nysg:nyng,nxlg:nxrg), shf(nysg:nyng,nxlg:nxrg), &
343	ts(nysg:nyng,nxlg:nxrg), tswst(nysg:nyng,nxlg:nxrg), &
344	us(nysg:nyng,nxlg:nxrg), usws(nysg:nyng,nxlg:nxrg), &
345	uswst(nysg:nyng,nxlg:nxrg), vsws(nysg:nyng,nxlg:nxrg), &
346	vswst(nysg:nyng,nxlg:nxrg), z0(nysg:nyng,nxlg:nxrg), &
347	z0h(nysg:nyng,nxlg:nxrg) )
348
349	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
350	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
351	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
352	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
353	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
354
355	#if defined( __nopointer )
356	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
357	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
358	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
359	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
360	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
361	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
362	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
363	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
364	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
365	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
366	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
367	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
368	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
369	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
370	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
371	#else
372	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
373	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
374	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
375	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
376	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
377	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
378	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
379	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
380	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
381	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
382	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
383	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
384	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
385	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
386	IF ( .NOT. neutral ) THEN
387	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
388	ENDIF
389	#endif
390
391	!
392	!-- Following array is required for perturbation pressure within the iterative
393	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
394	!-- the weighted average of the substeps and cannot be used in the Poisson
395	!-- solver.
396	IF ( psolver == 'sor' ) THEN
397	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
398	ELSEIF ( psolver(1:9) == 'multigrid' ) THEN
399	!
400	!-- For performance reasons, multigrid is using one ghost layer only
401	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
402	ENDIF
403
404	!
405	!-- Array for storing constant coeffficients of the tridiagonal solver
406	IF ( psolver == 'poisfft' ) THEN
407	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
408	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
409	ENDIF
410
411	IF ( humidity .OR. passive_scalar ) THEN
412	!
413	!-- 2D-humidity/scalar arrays
414	ALLOCATE ( qs(nysg:nyng,nxlg:nxrg), &
415	qsws(nysg:nyng,nxlg:nxrg), &
416	qswst(nysg:nyng,nxlg:nxrg) )
417
418	!
419	!-- 3D-humidity/scalar arrays
420	#if defined( __nopointer )
421	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
422	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
423	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
424	#else
425	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
426	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
427	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
428	#endif
429
430	!
431	!-- 3D-arrays needed for humidity only
432	IF ( humidity ) THEN
433	#if defined( __nopointer )
434	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
435	#else
436	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
437	#endif
438
439	IF ( cloud_physics ) THEN
440
441	!
442	!-- Liquid water content
443	#if defined( __nopointer )
444	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
445	#else
446	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
447	#endif
448	!
449	!-- Precipitation amount and rate (only needed if output is switched)
450	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
451	precipitation_rate(nysg:nyng,nxlg:nxrg) )
452
453	IF ( icloud_scheme == 0 ) THEN
454	!
455	!-- 1D-arrays
456	ALLOCATE ( nc_1d(nzb:nzt+1), pt_1d(nzb:nzt+1), &
457	q_1d(nzb:nzt+1), qc_1d(nzb:nzt+1) )
458	!
459	!-- 3D-cloud water content
460	#if defined( __nopointer )
461	ALLOCATE( qc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
462	#else
463	ALLOCATE( qc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
464	#endif
465
466	IF ( precipitation ) THEN
467	!
468	!-- 1D-arrays
469	ALLOCATE ( nr_1d(nzb:nzt+1), qr_1d(nzb:nzt+1) )
470
471	!
472	!-- 2D-rain water content and rain drop concentration arrays
473	ALLOCATE ( qrs(nysg:nyng,nxlg:nxrg), &
474	qrsws(nysg:nyng,nxlg:nxrg), &
475	qrswst(nysg:nyng,nxlg:nxrg), &
476	nrs(nysg:nyng,nxlg:nxrg), &
477	nrsws(nysg:nyng,nxlg:nxrg), &
478	nrswst(nysg:nyng,nxlg:nxrg) )
479	!
480	!-- 3D-rain water content, rain drop concentration arrays
481	#if defined( __nopointer )
482	ALLOCATE( nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
483	nr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
484	qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
485	qr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
486	tnr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
487	tqr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
488	#else
489	ALLOCATE( nr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
490	nr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
491	nr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
492	qr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
493	qr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
494	qr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
495	#endif
496	!
497	!-- 3d-precipitation rate
498	ALLOCATE( prr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
499	ENDIF
500
501	ENDIF
502	ENDIF
503
504	IF ( cloud_droplets ) THEN
505	!
506	!-- Liquid water content, change in liquid water content
507	#if defined( __nopointer )
508	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
509	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
510	#else
511	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
512	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
513	#endif
514	!
515	!-- Real volume of particles (with weighting), volume of particles
516	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
517	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
518	ENDIF
519
520	ENDIF
521
522	ENDIF
523
524	IF ( ocean ) THEN
525	ALLOCATE( saswsb(nysg:nyng,nxlg:nxrg), &
526	saswst(nysg:nyng,nxlg:nxrg) )
527	#if defined( __nopointer )
528	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
529	rho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
530	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
531	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
532	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
533	#else
534	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
535	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
536	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
537	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
538	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
539	prho => prho_1
540	rho => rho_1 ! routines calc_mean_profile and diffusion_e require
541	! density to be apointer
542	#endif
543	IF ( humidity_remote ) THEN
544	ALLOCATE( qswst_remote(nysg:nyng,nxlg:nxrg))
545	qswst_remote = 0.0_wp
546	ENDIF
547	ENDIF
548
549	!
550	!-- 3D-array for storing the dissipation, needed for calculating the sgs
551	!-- particle velocities
552	IF ( use_sgs_for_particles .OR. wang_kernel .OR. turbulence .OR. &
553	num_acc_per_node > 0 ) THEN
554	ALLOCATE( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
555	ENDIF
556
557	IF ( dt_dosp /= 9999999.9_wp ) THEN
558	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
559	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
560	spectrum_x = 0.0_wp
561	spectrum_y = 0.0_wp
562
563	ALLOCATE( var_d(nzb:nzt+1) )
564	var_d = 0.0_wp
565	ENDIF
566
567	!
568	!-- 1D-array for large scale subsidence velocity
569	IF ( .NOT. ALLOCATED( w_subs ) ) THEN
570	ALLOCATE ( w_subs(nzb:nzt+1) )
571	w_subs = 0.0_wp
572	ENDIF
573
574	!
575	!-- ID-array and state-space-array for the parallel random number generator
576	IF ( random_generator == 'random-parallel' ) THEN
577	ALLOCATE ( seq_random_array(5,nysg:nyng,nxlg:nxrg) )
578	ALLOCATE ( id_random_array(0:ny,0:nx) )
579	seq_random_array = 0
580	id_random_array = 0
581	ENDIF
582
583	!
584	!-- 4D-array for storing the Rif-values at vertical walls
585	IF ( topography /= 'flat' ) THEN
586	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
587	rif_wall = 0.0_wp
588	ENDIF
589
590	!
591	!-- Arrays to store velocity data from t-dt and the phase speeds which
592	!-- are needed for radiation boundary conditions
593	IF ( outflow_l ) THEN
594	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
595	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
596	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
597	ENDIF
598	IF ( outflow_r ) THEN
599	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
600	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
601	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
602	ENDIF
603	IF ( outflow_l .OR. outflow_r ) THEN
604	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
605	c_w(nzb:nzt+1,nysg:nyng) )
606	ENDIF
607	IF ( outflow_s ) THEN
608	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
609	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
610	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
611	ENDIF
612	IF ( outflow_n ) THEN
613	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
614	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
615	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
616	ENDIF
617	IF ( outflow_s .OR. outflow_n ) THEN
618	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
619	c_w(nzb:nzt+1,nxlg:nxrg) )
620	ENDIF
621	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
622	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
623	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
624	ENDIF
625
626
627	#if ! defined( __nopointer )
628	!
629	!-- Initial assignment of the pointers
630	e => e_1; e_p => e_2; te_m => e_3
631	IF ( .NOT. neutral ) THEN
632	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
633	ELSE
634	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
635	ENDIF
636	u => u_1; u_p => u_2; tu_m => u_3
637	v => v_1; v_p => v_2; tv_m => v_3
638	w => w_1; w_p => w_2; tw_m => w_3
639
640	IF ( humidity .OR. passive_scalar ) THEN
641	q => q_1; q_p => q_2; tq_m => q_3
642	IF ( humidity ) THEN
643	vpt => vpt_1
644	IF ( cloud_physics ) THEN
645	ql => ql_1
646	IF ( icloud_scheme == 0 ) THEN
647	qc => qc_1
648	IF ( precipitation ) THEN
649	qr => qr_1; qr_p => qr_2; tqr_m => qr_3
650	nr => nr_1; nr_p => nr_2; tnr_m => nr_3
651	ENDIF
652	ENDIF
653	ENDIF
654	ENDIF
655	IF ( cloud_droplets ) THEN
656	ql => ql_1
657	ql_c => ql_2
658	ENDIF
659	ENDIF
660
661	IF ( ocean ) THEN
662	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
663	ENDIF
664	#endif
665
666	!
667	!-- Allocate land surface model arrays
668	IF ( land_surface ) THEN
669	CALL init_lsm_arrays
670	ENDIF
671
672	!
673	!-- Allocate arrays containing the RK coefficient for calculation of
674	!-- perturbation pressure and turbulent fluxes. At this point values are
675	!-- set for pressure calculation during initialization (where no timestep
676	!-- is done). Further below the values needed within the timestep scheme
677	!-- will be set.
678	!-- TO_DO: zeroth element added to weight_pres because in case of nesting
679	!-- pres may need to be called outside the RK-substeps. Antti will
680	!-- check if this is really required.
681	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
682	weight_pres(0:intermediate_timestep_count_max) )
683	weight_substep = 1.0_wp
684	weight_pres = 1.0_wp
685	intermediate_timestep_count = 1 ! needed when simulated_time = 0.0
686
687	CALL location_message( 'finished', .TRUE. )
688	!
689	!-- Initialize model variables
690	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
691	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
692	!
693	!-- First model run of a possible job queue.
694	!-- Initial profiles of the variables must be computes.
695	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
696
697	CALL location_message( 'initializing with 1D model profiles', .FALSE. )
698	!
699	!-- Use solutions of the 1D model as initial profiles,
700	!-- start 1D model
701	CALL init_1d_model
702	!
703	!-- Transfer initial profiles to the arrays of the 3D model
704	DO i = nxlg, nxrg
705	DO j = nysg, nyng
706	e(:,j,i) = e1d
707	kh(:,j,i) = kh1d
708	km(:,j,i) = km1d
709	pt(:,j,i) = pt_init
710	u(:,j,i) = u1d
711	v(:,j,i) = v1d
712	ENDDO
713	ENDDO
714
715	IF ( humidity .OR. passive_scalar ) THEN
716	DO i = nxlg, nxrg
717	DO j = nysg, nyng
718	q(:,j,i) = q_init
719	ENDDO
720	ENDDO
721	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
722	precipitation ) THEN
723	DO i = nxlg, nxrg
724	DO j = nysg, nyng
725	qr(:,j,i) = 0.0_wp
726	nr(:,j,i) = 0.0_wp
727	ENDDO
728	ENDDO
729	!
730	!-- Initialze nc_1d with default value
731	nc_1d(:) = nc_const
732
733	ENDIF
734	ENDIF
735
736	IF ( .NOT. constant_diffusion ) THEN
737	DO i = nxlg, nxrg
738	DO j = nysg, nyng
739	e(:,j,i) = e1d
740	ENDDO
741	ENDDO
742	!
743	!-- Store initial profiles for output purposes etc.
744	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
745
746	IF ( constant_flux_layer ) THEN
747	ol = ( zu(nzb+1) - zw(nzb) ) / ( rif1d(nzb+1) + 1.0E-20_wp )
748	ts = 0.0_wp ! could actually be computed more accurately in the
749	! 1D model. Update when opportunity arises.
750	us = us1d
751	usws = usws1d
752	vsws = vsws1d
753	ELSE
754	ts = 0.0_wp ! must be set, because used in
755	ol = ( zu(nzb+1) - zw(nzb) ) / zeta_min ! flowste
756	us = 0.0_wp
757	usws = 0.0_wp
758	vsws = 0.0_wp
759	ENDIF
760
761	ELSE
762	e = 0.0_wp ! must be set, because used in
763	ol = ( zu(nzb+1) - zw(nzb) ) / zeta_min ! flowste
764	ts = 0.0_wp
765	us = 0.0_wp
766	usws = 0.0_wp
767	vsws = 0.0_wp
768	ENDIF
769	uswst = top_momentumflux_u
770	vswst = top_momentumflux_v
771
772	!
773	!-- In every case qs = 0.0 (see also pt)
774	!-- This could actually be computed more accurately in the 1D model.
775	!-- Update when opportunity arises!
776	IF ( humidity .OR. passive_scalar ) THEN
777	qs = 0.0_wp
778	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
779	precipitation ) THEN
780	qrs = 0.0_wp
781	nrs = 0.0_wp
782	ENDIF
783	ENDIF
784
785	!
786	!-- Inside buildings set velocities back to zero
787	IF ( topography /= 'flat' ) THEN
788	DO i = nxlg, nxrg
789	DO j = nysg, nyng
790	u(nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
791	v(nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
792	ENDDO
793	ENDDO
794
795	!
796	!-- WARNING: The extra boundary conditions set after running the
797	!-- ------- 1D model impose an error on the divergence one layer
798	!-- below the topography; need to correct later
799	!-- ATTENTION: Provisional correction for Piacsek & Williams
800	!-- --------- advection scheme: keep u and v zero one layer below
801	!-- the topography.
802	IF ( ibc_uv_b == 1 ) THEN
803	!
804	!-- Neumann condition
805	DO i = nxl-1, nxr+1
806	DO j = nys-1, nyn+1
807	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
808	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
809	ENDDO
810	ENDDO
811
812	ENDIF
813
814	ENDIF
815
816	CALL location_message( 'finished', .TRUE. )
817
818	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
819	THEN
820
821	CALL location_message( 'initializing with constant profiles', .FALSE. )
822	!
823	!-- Overwrite initial profiles in case of nudging
824	IF ( nudging ) THEN
825	pt_init = ptnudge(:,1)
826	u_init = unudge(:,1)
827	v_init = vnudge(:,1)
828	IF ( humidity .OR. passive_scalar ) THEN
829	q_init = qnudge(:,1)
830	ENDIF
831
832	WRITE( message_string, * ) 'Initial profiles of u, v and ', &
833	'scalars from NUDGING_DATA are used.'
834	CALL message( 'init_3d_model', 'PA0370', 0, 0, 0, 6, 0 )
835	ENDIF
836
837	!
838	!-- Use constructed initial profiles (velocity constant with height,
839	!-- temperature profile with constant gradient)
840	DO i = nxlg, nxrg
841	DO j = nysg, nyng
842	pt(:,j,i) = pt_init
843	u(:,j,i) = u_init
844	v(:,j,i) = v_init
845	ENDDO
846	ENDDO
847
848	!
849	!-- Set initial horizontal velocities at the lowest computational grid
850	!-- levels to zero in order to avoid too small time steps caused by the
851	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
852	!-- in the limiting formula!). The original values are stored to be later
853	!-- used for volume flow control.
854	! TO_DO: Antti will check if this is really required
855	!AH IF ( ibc_uv_b /= 1 ) THEN
856	!AH DO i = nxlg, nxrg
857	!AH DO j = nysg, nyng
858	!AH u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0_wp
859	!AH v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0_wp
860	!AH ENDDO
861	!AH ENDDO
862	!AH ENDIF
863
864	IF ( humidity .OR. passive_scalar ) THEN
865	DO i = nxlg, nxrg
866	DO j = nysg, nyng
867	q(:,j,i) = q_init
868	ENDDO
869	ENDDO
870	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
871	!
872	!-- Initialze nc_1d with default value
873	nc_1d(:) = nc_const
874
875	IF ( precipitation ) THEN
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	ENDIF
883
884	ENDIF
885	ENDIF
886
887	IF ( ocean ) THEN
888	DO i = nxlg, nxrg
889	DO j = nysg, nyng
890	sa(:,j,i) = sa_init
891	ENDDO
892	ENDDO
893	ENDIF
894
895	IF ( constant_diffusion ) THEN
896	km = km_constant
897	kh = km / prandtl_number
898	e = 0.0_wp
899	ELSEIF ( e_init > 0.0_wp ) THEN
900	DO k = nzb+1, nzt
901	km(k,:,:) = 0.1_wp * l_grid(k) * SQRT( e_init )
902	ENDDO
903	km(nzb,:,:) = km(nzb+1,:,:)
904	km(nzt+1,:,:) = km(nzt,:,:)
905	kh = km / prandtl_number
906	e = e_init
907	ELSE
908	IF ( .NOT. ocean ) THEN
909	kh = 0.01_wp ! there must exist an initial diffusion, because
910	km = 0.01_wp ! otherwise no TKE would be produced by the
911	! production terms, as long as not yet
912	! e = (u/cm)*2 at k=nzb+1
913	ELSE
914	kh = 0.00001_wp
915	km = 0.00001_wp
916	ENDIF
917	e = 0.0_wp
918	ENDIF
919	ol = ( zu(nzb+1) - zw(nzb) ) / zeta_min
920	ts = 0.0_wp
921	us = 0.0_wp
922	usws = 0.0_wp
923	uswst = top_momentumflux_u
924	vsws = 0.0_wp
925	vswst = top_momentumflux_v
926	IF ( humidity .OR. passive_scalar ) qs = 0.0_wp
927
928	!
929	!-- Compute initial temperature field and other constants used in case
930	!-- of a sloping surface
931	IF ( sloping_surface ) CALL init_slope
932
933	CALL location_message( 'finished', .TRUE. )
934
935	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
936	THEN
937
938	CALL location_message( 'initializing by user', .FALSE. )
939	!
940	!-- Initialization will completely be done by the user
941	CALL user_init_3d_model
942
943	CALL location_message( 'finished', .TRUE. )
944
945	ENDIF
946
947	CALL location_message( 'initializing statistics, boundary conditions, etc.', &
948	.FALSE. )
949
950	!
951	!-- Bottom boundary
952	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
953	u(nzb,:,:) = 0.0_wp
954	v(nzb,:,:) = 0.0_wp
955	ENDIF
956
957	!
958	!-- Apply channel flow boundary condition
959	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
960	u(nzt+1,:,:) = 0.0_wp
961	v(nzt+1,:,:) = 0.0_wp
962	ENDIF
963
964	!
965	!-- Calculate virtual potential temperature
966	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
967
968	!
969	!-- Store initial profiles for output purposes etc.
970	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
971	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
972	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
973	hom(nzb,1,5,:) = 0.0_wp
974	hom(nzb,1,6,:) = 0.0_wp
975	ENDIF
976	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
977	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
978	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
979
980	IF ( ocean ) THEN
981	!
982	!-- Store initial salinity profile
983	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
984	ENDIF
985
986	IF ( humidity ) THEN
987	!
988	!-- Store initial profile of total water content, virtual potential
989	!-- temperature
990	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
991	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
992	IF ( cloud_physics .OR. cloud_droplets ) THEN
993	!
994	!-- Store initial profile of specific humidity and potential
995	!-- temperature
996	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
997	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
998	ENDIF
999	ENDIF
1000
1001	IF ( passive_scalar ) THEN
1002	!
1003	!-- Store initial scalar profile
1004	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
1005	ENDIF
1006
1007	!
1008	!-- Initialize the random number generators (from numerical recipes)
1009	CALL random_function_ini
1010
1011	IF ( random_generator == 'random-parallel' ) THEN
1012	!-- Asigning an ID to every vertical gridpoint column
1013	!-- dependig on the ensemble run number.
1014	random_dummy=1
1015	DO j=0,ny
1016	DO i=0,nx
1017	id_random_array(j,i) = random_dummy + 1E6 * ( 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. icloud_scheme == 0 .AND. &
1068	precipitation ) THEN
1069	qrsws = 0.0_wp
1070	nrsws = 0.0_wp
1071	ENDIF
1072	IF ( constant_waterflux ) THEN
1073	qsws = surface_waterflux
1074	!
1075	!-- Over topography surface_waterflux is replaced by
1076	!-- wall_humidityflux(0)
1077	IF ( TRIM( topography ) /= 'flat' ) THEN
1078	wall_qflux = wall_humidityflux
1079	DO i = nxlg, nxrg
1080	DO j = nysg, nyng
1081	IF ( nzb_s_inner(j,i) /= 0 ) THEN
1082	qsws(j,i) = wall_qflux(0)
1083	ENDIF
1084	ENDDO
1085	ENDDO
1086	ENDIF
1087	ENDIF
1088	ENDIF
1089
1090	ENDIF
1091
1092	!
1093	!-- Initialize fluxes at top surface
1094	!-- Currently, only the heatflux and salinity flux can be prescribed.
1095	!-- The latent flux is zero in this case!
1096	IF ( use_top_fluxes ) THEN
1097
1098	IF ( constant_top_heatflux ) THEN
1099	!
1100	!-- Heat flux is prescribed
1101	tswst = top_heatflux
1102
1103	IF ( humidity .OR. passive_scalar ) THEN
1104	qswst = 0.0_wp
1105	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1106	precipitation ) THEN
1107	nrswst = 0.0_wp
1108	qrswst = 0.0_wp
1109	ENDIF
1110	ENDIF
1111
1112	IF ( ocean ) THEN
1113	saswsb = bottom_salinityflux
1114	saswst = top_salinityflux
1115	ENDIF
1116	ENDIF
1117
1118	!
1119	!-- Initialization in case of a coupled model run
1120	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
1121	tswst = 0.0_wp
1122	ENDIF
1123
1124	ENDIF
1125
1126	!
1127	!-- Initialize Prandtl layer quantities
1128	IF ( constant_flux_layer ) THEN
1129
1130	z0 = roughness_length
1131	z0h = z0h_factor * z0
1132
1133	IF ( .NOT. constant_heatflux ) THEN
1134	!
1135	!-- Surface temperature is prescribed. Here the heat flux cannot be
1136	!-- simply estimated, because therefore ol, u* and theta* would have
1137	!-- to be computed by iteration. This is why the heat flux is assumed
1138	!-- to be zero before the first time step. It approaches its correct
1139	!-- value in the course of the first few time steps.
1140	shf = 0.0_wp
1141	ENDIF
1142
1143	IF ( humidity .OR. passive_scalar ) THEN
1144	IF ( .NOT. constant_waterflux ) qsws = 0.0_wp
1145	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1146	precipitation ) THEN
1147	qrsws = 0.0_wp
1148	nrsws = 0.0_wp
1149	ENDIF
1150	ENDIF
1151
1152	ENDIF
1153
1154	!
1155	!-- Set the reference state to be used in the buoyancy terms (for ocean runs
1156	!-- the reference state will be set (overwritten) in init_ocean)
1157	IF ( use_single_reference_value ) THEN
1158	IF ( .NOT. humidity ) THEN
1159	ref_state(:) = pt_reference
1160	ELSE
1161	ref_state(:) = vpt_reference
1162	ENDIF
1163	ELSE
1164	IF ( .NOT. humidity ) THEN
1165	ref_state(:) = pt_init(:)
1166	ELSE
1167	ref_state(:) = vpt(:,nys,nxl)
1168	ENDIF
1169	ENDIF
1170
1171	!
1172	!-- For the moment, vertical velocity is zero
1173	w = 0.0_wp
1174
1175	!
1176	!-- Initialize array sums (must be defined in first call of pres)
1177	sums = 0.0_wp
1178
1179	!
1180	!-- In case of iterative solvers, p must get an initial value
1181	IF ( psolver(1:9) == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
1182
1183	!
1184	!-- Treating cloud physics, liquid water content and precipitation amount
1185	!-- are zero at beginning of the simulation
1186	IF ( cloud_physics ) THEN
1187	ql = 0.0_wp
1188	IF ( precipitation ) precipitation_amount = 0.0_wp
1189	IF ( icloud_scheme == 0 ) THEN
1190	qc = 0.0_wp
1191	nc_1d = nc_const
1192	ENDIF
1193	ENDIF
1194	!
1195	!-- Impose vortex with vertical axis on the initial velocity profile
1196	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
1197	CALL init_rankine
1198	ENDIF
1199
1200	!
1201	!-- Impose temperature anomaly (advection test only)
1202	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
1203	CALL init_pt_anomaly
1204	ENDIF
1205
1206	!
1207	!-- If required, change the surface temperature at the start of the 3D run
1208	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
1209	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
1210	ENDIF
1211
1212	!
1213	!-- If required, change the surface humidity/scalar at the start of the 3D
1214	!-- run
1215	IF ( ( humidity .OR. passive_scalar ) .AND. &
1216	q_surface_initial_change /= 0.0_wp ) THEN
1217	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
1218	ENDIF
1219
1220	!
1221	!-- Initialize old and new time levels.
1222	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
1223	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1224
1225	IF ( humidity .OR. passive_scalar ) THEN
1226	tq_m = 0.0_wp
1227	q_p = q
1228	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1229	precipitation ) THEN
1230	tqr_m = 0.0_wp
1231	qr_p = qr
1232	tnr_m = 0.0_wp
1233	nr_p = nr
1234	ENDIF
1235	ENDIF
1236
1237	IF ( ocean ) THEN
1238	tsa_m = 0.0_wp
1239	sa_p = sa
1240	ENDIF
1241
1242	CALL location_message( 'finished', .TRUE. )
1243
1244	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
1245	TRIM( initializing_actions ) == 'cyclic_fill' ) &
1246	THEN
1247
1248	CALL location_message( 'initializing in case of restart / cyclic_fill', &
1249	.FALSE. )
1250	!
1251	!-- When reading data for cyclic fill of 3D prerun data files, read
1252	!-- some of the global variables from the restart file which are required
1253	!-- for initializing the inflow
1254	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1255
1256	DO i = 0, io_blocks-1
1257	IF ( i == io_group ) THEN
1258	CALL read_parts_of_var_list
1259	CALL close_file( 13 )
1260	ENDIF
1261	#if defined( __parallel )
1262	CALL MPI_BARRIER( comm2d, ierr )
1263	#endif
1264	ENDDO
1265
1266	ENDIF
1267
1268	!
1269	!-- Read binary data from restart file
1270	DO i = 0, io_blocks-1
1271	IF ( i == io_group ) THEN
1272	CALL read_3d_binary
1273	ENDIF
1274	#if defined( __parallel )
1275	CALL MPI_BARRIER( comm2d, ierr )
1276	#endif
1277	ENDDO
1278
1279	!
1280	!-- Initialization of the turbulence recycling method
1281	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1282	turbulent_inflow ) THEN
1283	!
1284	!-- First store the profiles to be used at the inflow.
1285	!-- These profiles are the (temporally) and horizontally averaged vertical
1286	!-- profiles from the prerun. Alternatively, prescribed profiles
1287	!-- for u,v-components can be used.
1288	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,6) )
1289
1290	IF ( use_prescribed_profile_data ) THEN
1291	mean_inflow_profiles(:,1) = u_init ! u
1292	mean_inflow_profiles(:,2) = v_init ! v
1293	ELSE
1294	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
1295	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
1296	ENDIF
1297	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
1298	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
1299	mean_inflow_profiles(:,6) = hom_sum(:,41,0) ! q
1300
1301	!
1302	!-- If necessary, adjust the horizontal flow field to the prescribed
1303	!-- profiles
1304	IF ( use_prescribed_profile_data ) THEN
1305	DO i = nxlg, nxrg
1306	DO j = nysg, nyng
1307	DO k = nzb, nzt+1
1308	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
1309	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
1310	ENDDO
1311	ENDDO
1312	ENDDO
1313	ENDIF
1314
1315	!
1316	!-- Use these mean profiles at the inflow (provided that Dirichlet
1317	!-- conditions are used)
1318	IF ( inflow_l ) THEN
1319	DO j = nysg, nyng
1320	DO k = nzb, nzt+1
1321	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
1322	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
1323	w(k,j,nxlg:-1) = 0.0_wp
1324	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
1325	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
1326	IF ( humidity .OR. passive_scalar ) &
1327	q(k,j,nxlg:-1) = mean_inflow_profiles(k,6)
1328	ENDDO
1329	ENDDO
1330	ENDIF
1331
1332	!
1333	!-- Calculate the damping factors to be used at the inflow. For a
1334	!-- turbulent inflow the turbulent fluctuations have to be limited
1335	!-- vertically because otherwise the turbulent inflow layer will grow
1336	!-- in time.
1337	IF ( inflow_damping_height == 9999999.9_wp ) THEN
1338	!
1339	!-- Default: use the inversion height calculated by the prerun; if
1340	!-- this is zero, inflow_damping_height must be explicitly
1341	!-- specified.
1342	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
1343	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
1344	ELSE
1345	WRITE( message_string, * ) 'inflow_damping_height must be ',&
1346	'explicitly specified because&the inversion height ', &
1347	'calculated by the prerun is zero.'
1348	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
1349	ENDIF
1350
1351	ENDIF
1352
1353	IF ( inflow_damping_width == 9999999.9_wp ) THEN
1354	!
1355	!-- Default for the transition range: one tenth of the undamped
1356	!-- layer
1357	inflow_damping_width = 0.1_wp * inflow_damping_height
1358
1359	ENDIF
1360
1361	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
1362
1363	DO k = nzb, nzt+1
1364
1365	IF ( zu(k) <= inflow_damping_height ) THEN
1366	inflow_damping_factor(k) = 1.0_wp
1367	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
1368	inflow_damping_factor(k) = 1.0_wp - &
1369	( zu(k) - inflow_damping_height ) / &
1370	inflow_damping_width
1371	ELSE
1372	inflow_damping_factor(k) = 0.0_wp
1373	ENDIF
1374
1375	ENDDO
1376
1377	ENDIF
1378
1379	!
1380	!-- Inside buildings set velocities and TKE back to zero
1381	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1382	topography /= 'flat' ) THEN
1383	!
1384	!-- Inside buildings set velocities and TKE back to zero.
1385	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
1386	!-- maybe revise later.
1387	DO i = nxlg, nxrg
1388	DO j = nysg, nyng
1389	u (nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
1390	v (nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
1391	w (nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1392	e (nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1393	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
1394	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
1395	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1396	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1397	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
1398	ENDDO
1399	ENDDO
1400
1401	ENDIF
1402
1403	!
1404	!-- Calculate initial temperature field and other constants used in case
1405	!-- of a sloping surface
1406	IF ( sloping_surface ) CALL init_slope
1407
1408	!
1409	!-- Initialize new time levels (only done in order to set boundary values
1410	!-- including ghost points)
1411	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1412	IF ( humidity .OR. passive_scalar ) THEN
1413	q_p = q
1414	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1415	precipitation ) THEN
1416	qr_p = qr
1417	nr_p = nr
1418	ENDIF
1419	ENDIF
1420	IF ( ocean ) sa_p = sa
1421
1422	!
1423	!-- Allthough tendency arrays are set in prognostic_equations, they have
1424	!-- have to be predefined here because they are used (but multiplied with 0)
1425	!-- there before they are set.
1426	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
1427	IF ( humidity .OR. passive_scalar ) THEN
1428	tq_m = 0.0_wp
1429	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
1430	precipitation ) THEN
1431	tqr_m = 0.0_wp
1432	tnr_m = 0.0_wp
1433	ENDIF
1434	ENDIF
1435	IF ( ocean ) tsa_m = 0.0_wp
1436
1437	CALL location_message( 'finished', .TRUE. )
1438
1439	ELSE
1440	!
1441	!-- Actually this part of the programm should not be reached
1442	message_string = 'unknown initializing problem'
1443	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
1444	ENDIF
1445
1446
1447	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1448	!
1449	!-- Initialize old timelevels needed for radiation boundary conditions
1450	IF ( outflow_l ) THEN
1451	u_m_l(:,:,:) = u(:,:,1:2)
1452	v_m_l(:,:,:) = v(:,:,0:1)
1453	w_m_l(:,:,:) = w(:,:,0:1)
1454	ENDIF
1455	IF ( outflow_r ) THEN
1456	u_m_r(:,:,:) = u(:,:,nx-1:nx)
1457	v_m_r(:,:,:) = v(:,:,nx-1:nx)
1458	w_m_r(:,:,:) = w(:,:,nx-1:nx)
1459	ENDIF
1460	IF ( outflow_s ) THEN
1461	u_m_s(:,:,:) = u(:,0:1,:)
1462	v_m_s(:,:,:) = v(:,1:2,:)
1463	w_m_s(:,:,:) = w(:,0:1,:)
1464	ENDIF
1465	IF ( outflow_n ) THEN
1466	u_m_n(:,:,:) = u(:,ny-1:ny,:)
1467	v_m_n(:,:,:) = v(:,ny-1:ny,:)
1468	w_m_n(:,:,:) = w(:,ny-1:ny,:)
1469	ENDIF
1470
1471	ENDIF
1472
1473	!
1474	!-- Calculate the initial volume flow at the right and north boundary
1475	IF ( conserve_volume_flow ) THEN
1476
1477	IF ( use_prescribed_profile_data ) THEN
1478
1479	volume_flow_initial_l = 0.0_wp
1480	volume_flow_area_l = 0.0_wp
1481
1482	IF ( nxr == nx ) THEN
1483	DO j = nys, nyn
1484	DO k = nzb_2d(j,nx)+1, nzt
1485	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1486	u_init(k) * dzw(k)
1487	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1488	ENDDO
1489	ENDDO
1490	ENDIF
1491
1492	IF ( nyn == ny ) THEN
1493	DO i = nxl, nxr
1494	DO k = nzb_2d(ny,i)+1, nzt
1495	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1496	v_init(k) * dzw(k)
1497	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1498	ENDDO
1499	ENDDO
1500	ENDIF
1501
1502	#if defined( __parallel )
1503	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1504	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1505	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1506	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1507
1508	#else
1509	volume_flow_initial = volume_flow_initial_l
1510	volume_flow_area = volume_flow_area_l
1511	#endif
1512
1513	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1514
1515	volume_flow_initial_l = 0.0_wp
1516	volume_flow_area_l = 0.0_wp
1517
1518	IF ( nxr == nx ) THEN
1519	DO j = nys, nyn
1520	DO k = nzb_2d(j,nx)+1, nzt
1521	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1522	hom_sum(k,1,0) * dzw(k)
1523	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1524	ENDDO
1525	ENDDO
1526	ENDIF
1527
1528	IF ( nyn == ny ) THEN
1529	DO i = nxl, nxr
1530	DO k = nzb_2d(ny,i)+1, nzt
1531	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1532	hom_sum(k,2,0) * dzw(k)
1533	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1534	ENDDO
1535	ENDDO
1536	ENDIF
1537
1538	#if defined( __parallel )
1539	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1540	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1541	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1542	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1543
1544	#else
1545	volume_flow_initial = volume_flow_initial_l
1546	volume_flow_area = volume_flow_area_l
1547	#endif
1548
1549	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1550
1551	volume_flow_initial_l = 0.0_wp
1552	volume_flow_area_l = 0.0_wp
1553
1554	IF ( nxr == nx ) THEN
1555	DO j = nys, nyn
1556	DO k = nzb_2d(j,nx)+1, nzt
1557	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1558	u(k,j,nx) * dzw(k)
1559	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1560	ENDDO
1561	ENDDO
1562	ENDIF
1563
1564	IF ( nyn == ny ) THEN
1565	DO i = nxl, nxr
1566	DO k = nzb_2d(ny,i)+1, nzt
1567	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1568	v(k,ny,i) * dzw(k)
1569	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1570	ENDDO
1571	ENDDO
1572	ENDIF
1573
1574	#if defined( __parallel )
1575	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1576	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1577	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1578	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1579
1580	#else
1581	volume_flow_initial = volume_flow_initial_l
1582	volume_flow_area = volume_flow_area_l
1583	#endif
1584
1585	ENDIF
1586
1587	!
1588	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
1589	!-- from u\|v_bulk instead
1590	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
1591	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
1592	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
1593	ENDIF
1594
1595	ENDIF
1596
1597	!
1598	!-- Initialize quantities for special advections schemes
1599	CALL init_advec
1600
1601	!
1602	!-- Impose random perturbation on the horizontal velocity field and then
1603	!-- remove the divergences from the velocity field at the initial stage
1604	IF ( create_disturbances .AND. disturbance_energy_limit /= 0.0_wp .AND.&
1605	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1606	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1607
1608	CALL location_message( 'creating initial disturbances', .FALSE. )
1609	CALL disturb_field( nzb_u_inner, tend, u )
1610	CALL disturb_field( nzb_v_inner, tend, v )
1611	CALL location_message( 'finished', .TRUE. )
1612
1613	CALL location_message( 'calling pressure solver', .FALSE. )
1614	n_sor = nsor_ini
1615	!$acc data copyin( d, ddzu, ddzw, nzb_s_inner, nzb_u_inner ) &
1616	!$acc copyin( nzb_v_inner, nzb_w_inner, p, rflags_s_inner, tend ) &
1617	!$acc copyin( weight_pres, weight_substep ) &
1618	!$acc copy( tri, tric, u, v, w )
1619	CALL pres
1620	!$acc end data
1621	n_sor = nsor
1622	CALL location_message( 'finished', .TRUE. )
1623
1624	ENDIF
1625
1626	!
1627	!-- If required, initialize quantities needed for the plant canopy model
1628	IF ( plant_canopy ) CALL init_plant_canopy
1629
1630	!
1631	!-- If required, initialize dvrp-software
1632	IF ( dt_dvrp /= 9999999.9_wp ) CALL init_dvrp
1633
1634	IF ( ocean ) THEN
1635	!
1636	!-- Initialize quantities needed for the ocean model
1637	CALL init_ocean
1638
1639	ELSE
1640	!
1641	!-- Initialize quantities for handling cloud physics
1642	!-- This routine must be called before lpm_init, because
1643	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
1644	!-- lpm_init) is not defined.
1645	CALL init_cloud_physics
1646	ENDIF
1647
1648	!
1649	!-- If required, initialize particles
1650	IF ( particle_advection ) CALL lpm_init
1651
1652	!
1653	!-- If required, initialize quantities needed for the LSM
1654	IF ( land_surface ) THEN
1655	CALL location_message( 'initializing land surface model', .FALSE. )
1656	CALL init_lsm
1657	CALL location_message( 'finished', .TRUE. )
1658	ENDIF
1659
1660	!
1661	!-- Initialize surface layer (done after LSM as roughness length are required
1662	!-- for initialization
1663	IF ( constant_flux_layer ) THEN
1664	CALL location_message( 'initializing surface layer', .FALSE. )
1665	CALL init_surface_layer_fluxes
1666	CALL location_message( 'finished', .TRUE. )
1667	ENDIF
1668
1669	!
1670	!-- If required, initialize radiation model
1671	IF ( radiation ) THEN
1672	CALL location_message( 'initializing radiation model', .FALSE. )
1673	CALL init_radiation
1674	CALL location_message( 'finished', .TRUE. )
1675	ENDIF
1676
1677	!
1678	!-- Initialize the ws-scheme.
1679	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
1680
1681	!
1682	!-- Setting weighting factors for calculation of perturbation pressure
1683	!-- and turbulent quantities from the RK substeps
1684	!-- TO_DO: zeroth element is added to weight_pres because in nesting pres
1685	!-- may need to be called outside the RK-substeps
1686	weight_pres(0) = 1.0_wp
1687	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
1688
1689	weight_substep(1) = 1._wp/6._wp
1690	weight_substep(2) = 3._wp/10._wp
1691	weight_substep(3) = 8._wp/15._wp
1692
1693	weight_pres(1) = 1._wp/3._wp
1694	weight_pres(2) = 5._wp/12._wp
1695	weight_pres(3) = 1._wp/4._wp
1696
1697	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
1698
1699	weight_substep(1) = 1._wp/2._wp
1700	weight_substep(2) = 1._wp/2._wp
1701
1702	weight_pres(1) = 1._wp/2._wp
1703	weight_pres(2) = 1._wp/2._wp
1704
1705	ELSE ! for Euler-method
1706
1707	weight_substep(1) = 1.0_wp
1708	weight_pres(1) = 1.0_wp
1709
1710	ENDIF
1711
1712	!
1713	!-- Initialize Rayleigh damping factors
1714	rdf = 0.0_wp
1715	rdf_sc = 0.0_wp
1716	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
1717	IF ( .NOT. ocean ) THEN
1718	DO k = nzb+1, nzt
1719	IF ( zu(k) >= rayleigh_damping_height ) THEN
1720	rdf(k) = rayleigh_damping_factor * &
1721	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
1722	/ ( zu(nzt) - rayleigh_damping_height ) )&
1723	)**2
1724	ENDIF
1725	ENDDO
1726	ELSE
1727	DO k = nzt, nzb+1, -1
1728	IF ( zu(k) <= rayleigh_damping_height ) THEN
1729	rdf(k) = rayleigh_damping_factor * &
1730	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
1731	/ ( rayleigh_damping_height - zu(nzb+1)))&
1732	)**2
1733	ENDIF
1734	ENDDO
1735	ENDIF
1736	ENDIF
1737	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
1738
1739	!
1740	!-- Initialize the starting level and the vertical smoothing factor used for
1741	!-- the external pressure gradient
1742	dp_smooth_factor = 1.0_wp
1743	IF ( dp_external ) THEN
1744	!
1745	!-- Set the starting level dp_level_ind_b only if it has not been set before
1746	!-- (e.g. in init_grid).
1747	IF ( dp_level_ind_b == 0 ) THEN
1748	ind_array = MINLOC( ABS( dp_level_b - zu ) )
1749	dp_level_ind_b = ind_array(1) - 1 + nzb
1750	! MINLOC uses lower array bound 1
1751	ENDIF
1752	IF ( dp_smooth ) THEN
1753	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
1754	DO k = dp_level_ind_b+1, nzt
1755	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
1756	( REAL( k - dp_level_ind_b, KIND=wp ) / &
1757	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
1758	ENDDO
1759	ENDIF
1760	ENDIF
1761
1762	!
1763	!-- Initialize damping zone for the potential temperature in case of
1764	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
1765	!-- at the inflow boundary and decreases to zero at pt_damping_width.
1766	ptdf_x = 0.0_wp
1767	ptdf_y = 0.0_wp
1768	IF ( bc_lr_dirrad ) THEN
1769	DO i = nxl, nxr
1770	IF ( ( i * dx ) < pt_damping_width ) THEN
1771	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
1772	REAL( pt_damping_width - i * dx, KIND=wp ) / ( &
1773	REAL( pt_damping_width, KIND=wp ) ) ) )**2
1774	ENDIF
1775	ENDDO
1776	ELSEIF ( bc_lr_raddir ) THEN
1777	DO i = nxl, nxr
1778	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
1779	ptdf_x(i) = pt_damping_factor * &
1780	SIN( pi * 0.5_wp * &
1781	( ( i - nx ) * dx + pt_damping_width ) / &
1782	REAL( pt_damping_width, KIND=wp ) )**2
1783	ENDIF
1784	ENDDO
1785	ELSEIF ( bc_ns_dirrad ) THEN
1786	DO j = nys, nyn
1787	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
1788	ptdf_y(j) = pt_damping_factor * &
1789	SIN( pi * 0.5_wp * &
1790	( ( j - ny ) * dy + pt_damping_width ) / &
1791	REAL( pt_damping_width, KIND=wp ) )**2
1792	ENDIF
1793	ENDDO
1794	ELSEIF ( bc_ns_raddir ) THEN
1795	DO j = nys, nyn
1796	IF ( ( j * dy ) < pt_damping_width ) THEN
1797	ptdf_y(j) = pt_damping_factor * &
1798	SIN( pi * 0.5_wp * &
1799	( pt_damping_width - j * dy ) / &
1800	REAL( pt_damping_width, KIND=wp ) )**2
1801	ENDIF
1802	ENDDO
1803	ENDIF
1804
1805	!
1806	!-- Initialize local summation arrays for routine flow_statistics.
1807	!-- This is necessary because they may not yet have been initialized when they
1808	!-- are called from flow_statistics (or - depending on the chosen model run -
1809	!-- are never initialized)
1810	sums_divnew_l = 0.0_wp
1811	sums_divold_l = 0.0_wp
1812	sums_l_l = 0.0_wp
1813	sums_up_fraction_l = 0.0_wp
1814	sums_wsts_bc_l = 0.0_wp
1815
1816	!
1817	!-- Pre-set masks for regional statistics. Default is the total model domain.
1818	!-- Ghost points are excluded because counting values at the ghost boundaries
1819	!-- would bias the statistics
1820	rmask = 1.0_wp
1821	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
1822	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
1823
1824	!
1825	!-- User-defined initializing actions. Check afterwards, if maximum number
1826	!-- of allowed timeseries is exceeded
1827	CALL user_init
1828
1829	IF ( dots_num > dots_max ) THEN
1830	WRITE( message_string, * ) 'number of time series quantities exceeds', &
1831	' its maximum of dots_max = ', dots_max, &
1832	' &Please increase dots_max in modules.f90.'
1833	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
1834	ENDIF
1835
1836	!
1837	!-- Input binary data file is not needed anymore. This line must be placed
1838	!-- after call of user_init!
1839	CALL close_file( 13 )
1840
1841	!
1842	!-- Compute total sum of active mask grid points
1843	!-- and the mean surface level height for each statistic region
1844	!-- ngp_2dh: number of grid points of a horizontal cross section through the
1845	!-- total domain
1846	!-- ngp_3d: number of grid points of the total domain
1847	ngp_2dh_outer_l = 0
1848	ngp_2dh_outer = 0
1849	ngp_2dh_s_inner_l = 0
1850	ngp_2dh_s_inner = 0
1851	ngp_2dh_l = 0
1852	ngp_2dh = 0
1853	ngp_3d_inner_l = 0.0_wp
1854	ngp_3d_inner = 0
1855	ngp_3d = 0
1856	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
1857
1858	mean_surface_level_height = 0.0_wp
1859	mean_surface_level_height_l = 0.0_wp
1860
1861	DO sr = 0, statistic_regions
1862	DO i = nxl, nxr
1863	DO j = nys, nyn
1864	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
1865	!
1866	!-- All xy-grid points
1867	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
1868	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) + &
1869	zw(nzb_s_inner(j,i))
1870	!
1871	!-- xy-grid points above topography
1872	DO k = nzb_s_outer(j,i), nz + 1
1873	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
1874	ENDDO
1875	DO k = nzb_s_inner(j,i), nz + 1
1876	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
1877	ENDDO
1878	!
1879	!-- All grid points of the total domain above topography
1880	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
1881	( nz - nzb_s_inner(j,i) + 2 )
1882	ENDIF
1883	ENDDO
1884	ENDDO
1885	ENDDO
1886
1887	sr = statistic_regions + 1
1888	#if defined( __parallel )
1889	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1890	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
1891	comm2d, ierr )
1892	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1893	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
1894	MPI_INTEGER, MPI_SUM, comm2d, ierr )
1895	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1896	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
1897	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
1898	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1899	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
1900	MPI_SUM, comm2d, ierr )
1901	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
1902	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1903	CALL MPI_ALLREDUCE( mean_surface_level_height_l(0), &
1904	mean_surface_level_height(0), sr, MPI_REAL, &
1905	MPI_SUM, comm2d, ierr )
1906	mean_surface_level_height = mean_surface_level_height / REAL( ngp_2dh )
1907	#else
1908	ngp_2dh = ngp_2dh_l
1909	ngp_2dh_outer = ngp_2dh_outer_l
1910	ngp_2dh_s_inner = ngp_2dh_s_inner_l
1911	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
1912	mean_surface_level_height = mean_surface_level_height_l / REAL( ngp_2dh_l )
1913	#endif
1914
1915	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
1916	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
1917
1918	!
1919	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
1920	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
1921	!-- the respective subdomain lie below the surface topography
1922	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
1923	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
1924	ngp_3d_inner(:) )
1925	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
1926
1927	DEALLOCATE( mean_surface_level_height_l, ngp_2dh_l, ngp_2dh_outer_l, &
1928	ngp_3d_inner_l, ngp_3d_inner_tmp )
1929
1930	CALL location_message( 'leaving init_3d_model', .TRUE. )
1931
1932	END SUBROUTINE init_3d_model

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