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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1812

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

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