Home

Context Navigation

source: palm/trunk/SOURCE/init_3d_model.f90 @ 1817

Last change on this file since 1817 was 1817, checked in by maronga, 9 years ago
further modularization of land surface model
Property svn:keywords set to `Id`
File size: 70.5 KB

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

Note: See TracBrowser for help on using the repository browser.

Download in other formats:

| Impressum | ©Leibniz Universität Hannover |