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init_3d_model.f90 @ 137

Last change on this file since 137 was 132, checked in by letzel, 16 years ago

Vertical profiles now based on nzb_s_inner; they are divided by
ngp_2dh_s_inner (scalars, procucts of scalars and velocity components) and
ngp_2dh (staggered velocity components and their products), respectively.

Allow new case bc_uv_t = 'dirichlet_0' for channel flow.

Property svn:keywords set to Id

File size: 39.0 KB

Line
1	#if defined( __ibmy_special )
2	@PROCESS NOOPTimize
3	#endif
4	SUBROUTINE init_3d_model
5
6	!------------------------------------------------------------------------------!
7	! Actual revisions:
8	! -----------------
9	! New counter ngp_2dh_s_inner.
10	! Allow new case bc_uv_t = 'dirichlet_0' for channel flow.
11	! Corrected calculation of initial volume flow for 'set_1d-model_profiles' and
12	! 'set_constant_profiles' in case of buildings in the reference cross-sections.
13	!
14	! Former revisions:
15	! -----------------
16	! $Id: init_3d_model.f90 132 2007-11-20 09:46:11Z letzel $
17	!
18	! 108 2007-08-24 15:10:38Z letzel
19	! Flux initialization in case of coupled runs, +momentum fluxes at top boundary,
20	! +arrays for phase speed c_u, c_v, c_w, indices for u\|v\|w_m_l\|r changed
21	! +qswst_remote in case of atmosphere model with humidity coupled to ocean
22	! Rayleigh damping for ocean, optionally calculate km and kh from initial
23	! TKE e_init
24	!
25	! 97 2007-06-21 08:23:15Z raasch
26	! Initialization of salinity, call of init_ocean
27	!
28	! 87 2007-05-22 15:46:47Z raasch
29	! var_hom and var_sum renamed pr_palm
30	!
31	! 75 2007-03-22 09:54:05Z raasch
32	! Arrays for radiation boundary conditions are allocated (u_m_l, u_m_r, etc.),
33	! bugfix for cases with the outflow damping layer extending over more than one
34	! subdomain, moisture renamed humidity,
35	! new initializing action "by_user" calls user_init_3d_model,
36	! precipitation_amount/rate, ts_value are allocated, +module netcdf_control,
37	! initial velocities at nzb+1 are regarded for volume
38	! flow control in case they have been set zero before (to avoid small timesteps)
39	! -uvmean_outflow, uxrp, vynp eliminated
40	!
41	! 19 2007-02-23 04:53:48Z raasch
42	! +handling of top fluxes
43	!
44	! RCS Log replace by Id keyword, revision history cleaned up
45	!
46	! Revision 1.49 2006/08/22 15:59:07 raasch
47	! No optimization of this file on the ibmy (Yonsei Univ.)
48	!
49	! Revision 1.1 1998/03/09 16:22:22 raasch
50	! Initial revision
51	!
52	!
53	! Description:
54	! ------------
55	! Allocation of arrays and initialization of the 3D model via
56	! a) pre-run the 1D model
57	! or
58	! b) pre-set constant linear profiles
59	! or
60	! c) read values of a previous run
61	!------------------------------------------------------------------------------!
62
63	USE arrays_3d
64	USE averaging
65	USE cloud_parameters
66	USE constants
67	USE control_parameters
68	USE cpulog
69	USE indices
70	USE interfaces
71	USE model_1d
72	USE netcdf_control
73	USE particle_attributes
74	USE pegrid
75	USE profil_parameter
76	USE random_function_mod
77	USE statistics
78
79	IMPLICIT NONE
80
81	INTEGER :: i, j, k, sr
82
83	INTEGER, DIMENSION(:), ALLOCATABLE :: ngp_2dh_l, ngp_3d_inner_l
84
85	INTEGER, DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l, &
86	ngp_2dh_s_inner_l
87
88	REAL, DIMENSION(1:2) :: volume_flow_area_l, volume_flow_initial_l
89
90
91	!
92	!-- Allocate arrays
93	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
94	ngp_3d(0:statistic_regions), &
95	ngp_3d_inner(0:statistic_regions), &
96	ngp_3d_inner_l(0:statistic_regions), &
97	sums_divnew_l(0:statistic_regions), &
98	sums_divold_l(0:statistic_regions) )
99	ALLOCATE( rdf(nzb+1:nzt) )
100	ALLOCATE( hom_sum(nzb:nzt+1,pr_palm+max_pr_user,0:statistic_regions), &
101	ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
102	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
103	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
104	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
105	rmask(nys-1:nyn+1,nxl-1:nxr+1,0:statistic_regions), &
106	sums(nzb:nzt+1,pr_palm+max_pr_user), &
107	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
108	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
109	sums_up_fraction_l(10,3,0:statistic_regions), &
110	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
111	ts_value(var_ts,0:statistic_regions) )
112	ALLOCATE( km_damp_x(nxl-1:nxr+1), km_damp_y(nys-1:nyn+1) )
113
114	ALLOCATE( rif_1(nys-1:nyn+1,nxl-1:nxr+1), shf_1(nys-1:nyn+1,nxl-1:nxr+1), &
115	ts(nys-1:nyn+1,nxl-1:nxr+1), tswst_1(nys-1:nyn+1,nxl-1:nxr+1), &
116	us(nys-1:nyn+1,nxl-1:nxr+1), usws_1(nys-1:nyn+1,nxl-1:nxr+1), &
117	uswst_1(nys-1:nyn+1,nxl-1:nxr+1), &
118	vsws_1(nys-1:nyn+1,nxl-1:nxr+1), &
119	vswst_1(nys-1:nyn+1,nxl-1:nxr+1), z0(nys-1:nyn+1,nxl-1:nxr+1) )
120
121	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
122	!
123	!-- Leapfrog scheme needs two timelevels of diffusion quantities
124	ALLOCATE( rif_2(nys-1:nyn+1,nxl-1:nxr+1), &
125	shf_2(nys-1:nyn+1,nxl-1:nxr+1), &
126	tswst_2(nys-1:nyn+1,nxl-1:nxr+1), &
127	usws_2(nys-1:nyn+1,nxl-1:nxr+1), &
128	uswst_2(nys-1:nyn+1,nxl-1:nxr+1), &
129	vswst_2(nys-1:nyn+1,nxl-1:nxr+1), &
130	vsws_2(nys-1:nyn+1,nxl-1:nxr+1) )
131	ENDIF
132
133	ALLOCATE( d(nzb+1:nzta,nys:nyna,nxl:nxra), &
134	e_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
135	e_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
136	e_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
137	kh_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
138	km_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
139	p(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
140	pt_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
141	pt_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
142	pt_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
143	tend(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
144	u_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
145	u_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
146	u_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
147	v_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
148	v_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
149	v_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
150	w_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
151	w_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
152	w_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
153
154	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
155	ALLOCATE( kh_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
156	km_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
157	ENDIF
158
159	IF ( humidity .OR. passive_scalar ) THEN
160	!
161	!-- 2D-humidity/scalar arrays
162	ALLOCATE ( qs(nys-1:nyn+1,nxl-1:nxr+1), &
163	qsws_1(nys-1:nyn+1,nxl-1:nxr+1), &
164	qswst_1(nys-1:nyn+1,nxl-1:nxr+1) )
165
166	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
167	ALLOCATE( qsws_2(nys-1:nyn+1,nxl-1:nxr+1), &
168	qswst_2(nys-1:nyn+1,nxl-1:nxr+1) )
169	ENDIF
170	!
171	!-- 3D-humidity/scalar arrays
172	ALLOCATE( q_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
173	q_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
174	q_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
175
176	!
177	!-- 3D-arrays needed for humidity only
178	IF ( humidity ) THEN
179	ALLOCATE( vpt_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
180
181	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
182	ALLOCATE( vpt_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
183	ENDIF
184
185	IF ( cloud_physics ) THEN
186	!
187	!-- Liquid water content
188	ALLOCATE ( ql_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
189	!
190	!-- Precipitation amount and rate (only needed if output is switched)
191	ALLOCATE( precipitation_amount(nys-1:nyn+1,nxl-1:nxr+1), &
192	precipitation_rate(nys-1:nyn+1,nxl-1:nxr+1) )
193	ENDIF
194
195	IF ( cloud_droplets ) THEN
196	!
197	!-- Liquid water content, change in liquid water content,
198	!-- real volume of particles (with weighting), volume of particles
199	ALLOCATE ( ql_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
200	ql_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
201	ql_v(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
202	ql_vp(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
203	ENDIF
204
205	ENDIF
206
207	ENDIF
208
209	IF ( ocean ) THEN
210	ALLOCATE( saswsb_1(nys-1:nyn+1,nxl-1:nxr+1), &
211	saswst_1(nys-1:nyn+1,nxl-1:nxr+1) )
212	ALLOCATE( rho_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
213	sa_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
214	sa_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
215	sa_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
216	rho => rho_1 ! routine calc_mean_profile requires density to be a
217	! pointer
218	IF ( humidity_remote ) THEN
219	ALLOCATE( qswst_remote(nys-1:nyn+1,nxl-1:nxr+1) )
220	qswst_remote = 0.0
221	ENDIF
222	ENDIF
223
224	!
225	!-- 3D-array for storing the dissipation, needed for calculating the sgs
226	!-- particle velocities
227	IF ( use_sgs_for_particles ) THEN
228	ALLOCATE ( diss(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
229	ENDIF
230
231	IF ( dt_dosp /= 9999999.9 ) THEN
232	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
233	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
234	ENDIF
235
236	!
237	!-- 4D-array for storing the Rif-values at vertical walls
238	IF ( topography /= 'flat' ) THEN
239	ALLOCATE( rif_wall(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1,1:4) )
240	rif_wall = 0.0
241	ENDIF
242
243	!
244	!-- Velocities at nzb+1 needed for volume flow control
245	IF ( conserve_volume_flow ) THEN
246	ALLOCATE( u_nzb_p1_for_vfc(nys:nyn), v_nzb_p1_for_vfc(nxl:nxr) )
247	u_nzb_p1_for_vfc = 0.0
248	v_nzb_p1_for_vfc = 0.0
249	ENDIF
250
251	!
252	!-- Arrays to store velocity data from t-dt and the phase speeds which
253	!-- are needed for radiation boundary conditions
254	IF ( outflow_l ) THEN
255	ALLOCATE( u_m_l(nzb:nzt+1,nys-1:nyn+1,1:2), &
256	v_m_l(nzb:nzt+1,nys-1:nyn+1,0:1), &
257	w_m_l(nzb:nzt+1,nys-1:nyn+1,0:1) )
258	ENDIF
259	IF ( outflow_r ) THEN
260	ALLOCATE( u_m_r(nzb:nzt+1,nys-1:nyn+1,nx-1:nx), &
261	v_m_r(nzb:nzt+1,nys-1:nyn+1,nx-1:nx), &
262	w_m_r(nzb:nzt+1,nys-1:nyn+1,nx-1:nx) )
263	ENDIF
264	IF ( outflow_l .OR. outflow_r ) THEN
265	ALLOCATE( c_u(nzb:nzt+1,nys-1:nyn+1), c_v(nzb:nzt+1,nys-1:nyn+1), &
266	c_w(nzb:nzt+1,nys-1:nyn+1) )
267	ENDIF
268	IF ( outflow_s ) THEN
269	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxl-1:nxr+1), &
270	v_m_s(nzb:nzt+1,1:2,nxl-1:nxr+1), &
271	w_m_s(nzb:nzt+1,0:1,nxl-1:nxr+1) )
272	ENDIF
273	IF ( outflow_n ) THEN
274	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxl-1:nxr+1), &
275	v_m_n(nzb:nzt+1,ny-1:ny,nxl-1:nxr+1), &
276	w_m_n(nzb:nzt+1,ny-1:ny,nxl-1:nxr+1) )
277	ENDIF
278	IF ( outflow_s .OR. outflow_n ) THEN
279	ALLOCATE( c_u(nzb:nzt+1,nxl-1:nxr+1), c_v(nzb:nzt+1,nxl-1:nxr+1), &
280	c_w(nzb:nzt+1,nxl-1:nxr+1) )
281	ENDIF
282
283	!
284	!-- Initial assignment of the pointers
285	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
286
287	rif_m => rif_1; rif => rif_2
288	shf_m => shf_1; shf => shf_2
289	tswst_m => tswst_1; tswst => tswst_2
290	usws_m => usws_1; usws => usws_2
291	uswst_m => uswst_1; uswst => uswst_2
292	vsws_m => vsws_1; vsws => vsws_2
293	vswst_m => vswst_1; vswst => vswst_2
294	e_m => e_1; e => e_2; e_p => e_3; te_m => e_3
295	kh_m => kh_1; kh => kh_2
296	km_m => km_1; km => km_2
297	pt_m => pt_1; pt => pt_2; pt_p => pt_3; tpt_m => pt_3
298	u_m => u_1; u => u_2; u_p => u_3; tu_m => u_3
299	v_m => v_1; v => v_2; v_p => v_3; tv_m => v_3
300	w_m => w_1; w => w_2; w_p => w_3; tw_m => w_3
301
302	IF ( humidity .OR. passive_scalar ) THEN
303	qsws_m => qsws_1; qsws => qsws_2
304	qswst_m => qswst_1; qswst => qswst_2
305	q_m => q_1; q => q_2; q_p => q_3; tq_m => q_3
306	IF ( humidity ) vpt_m => vpt_1; vpt => vpt_2
307	IF ( cloud_physics ) ql => ql_1
308	IF ( cloud_droplets ) THEN
309	ql => ql_1
310	ql_c => ql_2
311	ENDIF
312	ENDIF
313
314	ELSE
315
316	rif => rif_1
317	shf => shf_1
318	tswst => tswst_1
319	usws => usws_1
320	uswst => uswst_1
321	vsws => vsws_1
322	vswst => vswst_1
323	e => e_1; e_p => e_2; te_m => e_3; e_m => e_3
324	kh => kh_1
325	km => km_1
326	pt => pt_1; pt_p => pt_2; tpt_m => pt_3; pt_m => pt_3
327	u => u_1; u_p => u_2; tu_m => u_3; u_m => u_3
328	v => v_1; v_p => v_2; tv_m => v_3; v_m => v_3
329	w => w_1; w_p => w_2; tw_m => w_3; w_m => w_3
330
331	IF ( humidity .OR. passive_scalar ) THEN
332	qsws => qsws_1
333	qswst => qswst_1
334	q => q_1; q_p => q_2; tq_m => q_3; q_m => q_3
335	IF ( humidity ) vpt => vpt_1
336	IF ( cloud_physics ) ql => ql_1
337	IF ( cloud_droplets ) THEN
338	ql => ql_1
339	ql_c => ql_2
340	ENDIF
341	ENDIF
342
343	IF ( ocean ) THEN
344	saswsb => saswsb_1
345	saswst => saswst_1
346	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
347	ENDIF
348
349	ENDIF
350
351	!
352	!-- Initialize model variables
353	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
354	!
355	!-- First model run of a possible job queue.
356	!-- Initial profiles of the variables must be computes.
357	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
358	!
359	!-- Use solutions of the 1D model as initial profiles,
360	!-- start 1D model
361	CALL init_1d_model
362	!
363	!-- Transfer initial profiles to the arrays of the 3D model
364	DO i = nxl-1, nxr+1
365	DO j = nys-1, nyn+1
366	e(:,j,i) = e1d
367	kh(:,j,i) = kh1d
368	km(:,j,i) = km1d
369	pt(:,j,i) = pt_init
370	u(:,j,i) = u1d
371	v(:,j,i) = v1d
372	ENDDO
373	ENDDO
374
375	IF ( humidity .OR. passive_scalar ) THEN
376	DO i = nxl-1, nxr+1
377	DO j = nys-1, nyn+1
378	q(:,j,i) = q_init
379	ENDDO
380	ENDDO
381	ENDIF
382
383	IF ( .NOT. constant_diffusion ) THEN
384	DO i = nxl-1, nxr+1
385	DO j = nys-1, nyn+1
386	e(:,j,i) = e1d
387	ENDDO
388	ENDDO
389	!
390	!-- Store initial profiles for output purposes etc.
391	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
392
393	IF ( prandtl_layer ) THEN
394	rif = rif1d(nzb+1)
395	ts = 0.0 ! could actually be computed more accurately in the
396	! 1D model. Update when opportunity arises.
397	us = us1d
398	usws = usws1d
399	vsws = vsws1d
400	ELSE
401	ts = 0.0 ! must be set, because used in
402	rif = 0.0 ! flowste
403	us = 0.0
404	usws = 0.0
405	vsws = 0.0
406	ENDIF
407
408	ELSE
409	e = 0.0 ! must be set, because used in
410	rif = 0.0 ! flowste
411	ts = 0.0
412	us = 0.0
413	usws = 0.0
414	vsws = 0.0
415	ENDIF
416	uswst = top_momentumflux_u
417	vswst = top_momentumflux_v
418
419	!
420	!-- In every case qs = 0.0 (see also pt)
421	!-- This could actually be computed more accurately in the 1D model.
422	!-- Update when opportunity arises!
423	IF ( humidity .OR. passive_scalar ) qs = 0.0
424
425	!
426	!-- inside buildings set velocities back to zero
427	IF ( topography /= 'flat' ) THEN
428	DO i = nxl-1, nxr+1
429	DO j = nys-1, nyn+1
430	u(nzb:nzb_u_inner(j,i),j,i) = 0.0
431	v(nzb:nzb_v_inner(j,i),j,i) = 0.0
432	ENDDO
433	ENDDO
434	IF ( conserve_volume_flow ) THEN
435	IF ( nxr == nx ) THEN
436	DO j = nys, nyn
437	DO k = nzb + 1, nzb_u_inner(j,nx)
438	u_nzb_p1_for_vfc(j) = u1d(k) * dzu(k)
439	ENDDO
440	ENDDO
441	ENDIF
442	IF ( nyn == ny ) THEN
443	DO i = nxl, nxr
444	DO k = nzb + 1, nzb_v_inner(ny,i)
445	v_nzb_p1_for_vfc(i) = v1d(k) * dzu(k)
446	ENDDO
447	ENDDO
448	ENDIF
449	ENDIF
450	!
451	!-- WARNING: The extra boundary conditions set after running the
452	!-- ------- 1D model impose an error on the divergence one layer
453	!-- below the topography; need to correct later
454	!-- ATTENTION: Provisional correction for Piacsek & Williams
455	!-- --------- advection scheme: keep u and v zero one layer below
456	!-- the topography.
457	IF ( ibc_uv_b == 0 ) THEN
458	!
459	!-- Satisfying the Dirichlet condition with an extra layer below
460	!-- the surface where the u and v component change their sign.
461	DO i = nxl-1, nxr+1
462	DO j = nys-1, nyn+1
463	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = -u(1,j,i)
464	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = -v(1,j,i)
465	ENDDO
466	ENDDO
467
468	ELSE
469	!
470	!-- Neumann condition
471	DO i = nxl-1, nxr+1
472	DO j = nys-1, nyn+1
473	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
474	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
475	ENDDO
476	ENDDO
477
478	ENDIF
479
480	ENDIF
481
482	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
483	THEN
484	!
485	!-- Use constructed initial profiles (velocity constant with height,
486	!-- temperature profile with constant gradient)
487	DO i = nxl-1, nxr+1
488	DO j = nys-1, nyn+1
489	pt(:,j,i) = pt_init
490	u(:,j,i) = u_init
491	v(:,j,i) = v_init
492	ENDDO
493	ENDDO
494
495	!
496	!-- Set initial horizontal velocities at the lowest computational grid levels
497	!-- to zero in order to avoid too small time steps caused by the diffusion
498	!-- limit in the initial phase of a run (at k=1, dz/2 occurs in the
499	!-- limiting formula!). The original values are stored to be later used for
500	!-- volume flow control.
501	DO i = nxl-1, nxr+1
502	DO j = nys-1, nyn+1
503	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0
504	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0
505	ENDDO
506	ENDDO
507	IF ( conserve_volume_flow ) THEN
508	IF ( nxr == nx ) THEN
509	DO j = nys, nyn
510	DO k = nzb + 1, nzb_u_inner(j,nx) + 1
511	u_nzb_p1_for_vfc(j) = u_init(k) * dzu(k)
512	ENDDO
513	ENDDO
514	ENDIF
515	IF ( nyn == ny ) THEN
516	DO i = nxl, nxr
517	DO k = nzb + 1, nzb_v_inner(ny,i) + 1
518	v_nzb_p1_for_vfc(i) = v_init(k) * dzu(k)
519	ENDDO
520	ENDDO
521	ENDIF
522	ENDIF
523
524	IF ( humidity .OR. passive_scalar ) THEN
525	DO i = nxl-1, nxr+1
526	DO j = nys-1, nyn+1
527	q(:,j,i) = q_init
528	ENDDO
529	ENDDO
530	ENDIF
531
532	IF ( ocean ) THEN
533	DO i = nxl-1, nxr+1
534	DO j = nys-1, nyn+1
535	sa(:,j,i) = sa_init
536	ENDDO
537	ENDDO
538	ENDIF
539
540	IF ( constant_diffusion ) THEN
541	km = km_constant
542	kh = km / prandtl_number
543	e = 0.0
544	ELSEIF ( e_init > 0.0 ) THEN
545	DO k = nzb+1, nzt
546	km(k,:,:) = 0.1 * l_grid(k) * SQRT( e_init )
547	ENDDO
548	km(nzb,:,:) = km(nzb+1,:,:)
549	km(nzt+1,:,:) = km(nzt,:,:)
550	kh = km / prandtl_number
551	e = e_init
552	ELSE
553	IF ( .NOT. ocean ) THEN
554	kh = 0.01 ! there must exist an initial diffusion, because
555	km = 0.01 ! otherwise no TKE would be produced by the
556	! production terms, as long as not yet
557	! e = (u/cm)*2 at k=nzb+1
558	ELSE
559	kh = 0.00001
560	km = 0.00001
561	ENDIF
562	e = 0.0
563	ENDIF
564	rif = 0.0
565	ts = 0.0
566	us = 0.0
567	usws = 0.0
568	uswst = top_momentumflux_u
569	vsws = 0.0
570	vswst = top_momentumflux_v
571	IF ( humidity .OR. passive_scalar ) qs = 0.0
572
573	!
574	!-- Compute initial temperature field and other constants used in case
575	!-- of a sloping surface
576	IF ( sloping_surface ) CALL init_slope
577
578	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
579	THEN
580	!
581	!-- Initialization will completely be done by the user
582	CALL user_init_3d_model
583
584	ENDIF
585
586	!
587	!-- apply channel flow boundary condition
588	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
589
590	u(nzt+1,:,:) = 0.0
591	v(nzt+1,:,:) = 0.0
592
593	!-- for the Dirichlet condition to be correctly applied at the top, set
594	!-- ug and vg to zero there
595	ug(nzt+1) = 0.0
596	vg(nzt+1) = 0.0
597
598	ENDIF
599
600	!
601	!-- Calculate virtual potential temperature
602	IF ( humidity ) vpt = pt * ( 1.0 + 0.61 * q )
603
604	!
605	!-- Store initial profiles for output purposes etc.
606	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
607	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
608	IF ( ibc_uv_b == 0 ) THEN
609	hom(nzb,1,5,:) = -hom(nzb+1,1,5,:) ! due to satisfying the Dirichlet
610	hom(nzb,1,6,:) = -hom(nzb+1,1,6,:) ! condition with an extra layer
611	! below the surface where the u and v component change their sign
612	ENDIF
613	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
614	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
615	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
616
617	IF ( ocean ) THEN
618	!
619	!-- Store initial salinity profile
620	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
621	ENDIF
622
623	IF ( humidity ) THEN
624	!
625	!-- Store initial profile of total water content, virtual potential
626	!-- temperature
627	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
628	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
629	IF ( cloud_physics .OR. cloud_droplets ) THEN
630	!
631	!-- Store initial profile of specific humidity and potential
632	!-- temperature
633	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
634	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
635	ENDIF
636	ENDIF
637
638	IF ( passive_scalar ) THEN
639	!
640	!-- Store initial scalar profile
641	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
642	ENDIF
643
644	!
645	!-- Initialize fluxes at bottom surface
646	IF ( use_surface_fluxes ) THEN
647
648	IF ( constant_heatflux ) THEN
649	!
650	!-- Heat flux is prescribed
651	IF ( random_heatflux ) THEN
652	CALL disturb_heatflux
653	ELSE
654	shf = surface_heatflux
655	!
656	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
657	IF ( TRIM( topography ) /= 'flat' ) THEN
658	DO i = nxl-1, nxr+1
659	DO j = nys-1, nyn+1
660	IF ( nzb_s_inner(j,i) /= 0 ) THEN
661	shf(j,i) = wall_heatflux(0)
662	ENDIF
663	ENDDO
664	ENDDO
665	ENDIF
666	ENDIF
667	IF ( ASSOCIATED( shf_m ) ) shf_m = shf
668	ENDIF
669
670	!
671	!-- Determine the near-surface water flux
672	IF ( humidity .OR. passive_scalar ) THEN
673	IF ( constant_waterflux ) THEN
674	qsws = surface_waterflux
675	IF ( ASSOCIATED( qsws_m ) ) qsws_m = qsws
676	ENDIF
677	ENDIF
678
679	ENDIF
680
681	!
682	!-- Initialize fluxes at top surface
683	!-- Currently, only the heatflux and salinity flux can be prescribed.
684	!-- The latent flux is zero in this case!
685	IF ( use_top_fluxes ) THEN
686
687	IF ( constant_top_heatflux ) THEN
688	!
689	!-- Heat flux is prescribed
690	tswst = top_heatflux
691	IF ( ASSOCIATED( tswst_m ) ) tswst_m = tswst
692
693	IF ( humidity .OR. passive_scalar ) THEN
694	qswst = 0.0
695	IF ( ASSOCIATED( qswst_m ) ) qswst_m = qswst
696	ENDIF
697
698	IF ( ocean ) THEN
699	saswsb = bottom_salinityflux
700	saswst = top_salinityflux
701	ENDIF
702	ENDIF
703
704	!
705	!-- Initialization in case of a coupled model run
706	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
707	tswst = 0.0
708	IF ( ASSOCIATED( tswst_m ) ) tswst_m = tswst
709	ENDIF
710
711	ENDIF
712
713	!
714	!-- Initialize Prandtl layer quantities
715	IF ( prandtl_layer ) THEN
716
717	z0 = roughness_length
718
719	IF ( .NOT. constant_heatflux ) THEN
720	!
721	!-- Surface temperature is prescribed. Here the heat flux cannot be
722	!-- simply estimated, because therefore rif, u* and theta* would have
723	!-- to be computed by iteration. This is why the heat flux is assumed
724	!-- to be zero before the first time step. It approaches its correct
725	!-- value in the course of the first few time steps.
726	shf = 0.0
727	IF ( ASSOCIATED( shf_m ) ) shf_m = 0.0
728	ENDIF
729
730	IF ( humidity .OR. passive_scalar ) THEN
731	IF ( .NOT. constant_waterflux ) THEN
732	qsws = 0.0
733	IF ( ASSOCIATED( qsws_m ) ) qsws_m = 0.0
734	ENDIF
735	ENDIF
736
737	ENDIF
738
739	!
740	!-- Calculate the initial volume flow at the right and north boundary
741	IF ( conserve_volume_flow ) THEN
742
743	volume_flow_initial_l = 0.0
744	volume_flow_area_l = 0.0
745
746	IF ( nxr == nx ) THEN
747	DO j = nys, nyn
748	DO k = nzb_2d(j,nx) + 1, nzt
749	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
750	u(k,j,nx) * dzu(k)
751	volume_flow_area_l(1) = volume_flow_area_l(1) + dzu(k)
752	ENDDO
753	!
754	!-- Correction if velocity at nzb+1 has been set zero further above
755	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
756	u_nzb_p1_for_vfc(j)
757	ENDDO
758	ENDIF
759
760	IF ( nyn == ny ) THEN
761	DO i = nxl, nxr
762	DO k = nzb_2d(ny,i) + 1, nzt
763	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
764	v(k,ny,i) * dzu(k)
765	volume_flow_area_l(2) = volume_flow_area_l(2) + dzu(k)
766	ENDDO
767	!
768	!-- Correction if velocity at nzb+1 has been set zero further above
769	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
770	v_nzb_p1_for_vfc(i)
771	ENDDO
772	ENDIF
773
774	#if defined( __parallel )
775	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
776	2, MPI_REAL, MPI_SUM, comm2d, ierr )
777	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
778	2, MPI_REAL, MPI_SUM, comm2d, ierr )
779	#else
780	volume_flow_initial = volume_flow_initial_l
781	volume_flow_area = volume_flow_area_l
782	#endif
783	ENDIF
784
785	!
786	!-- For the moment, perturbation pressure and vertical velocity are zero
787	p = 0.0; w = 0.0
788
789	!
790	!-- Initialize array sums (must be defined in first call of pres)
791	sums = 0.0
792
793	!
794	!-- Treating cloud physics, liquid water content and precipitation amount
795	!-- are zero at beginning of the simulation
796	IF ( cloud_physics ) THEN
797	ql = 0.0
798	IF ( precipitation ) precipitation_amount = 0.0
799	ENDIF
800
801	!
802	!-- Initialize spectra
803	IF ( dt_dosp /= 9999999.9 ) THEN
804	spectrum_x = 0.0
805	spectrum_y = 0.0
806	ENDIF
807
808	!
809	!-- Impose vortex with vertical axis on the initial velocity profile
810	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
811	CALL init_rankine
812	ENDIF
813
814	!
815	!-- Impose temperature anomaly (advection test only)
816	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
817	CALL init_pt_anomaly
818	ENDIF
819
820	!
821	!-- If required, change the surface temperature at the start of the 3D run
822	IF ( pt_surface_initial_change /= 0.0 ) THEN
823	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
824	ENDIF
825
826	!
827	!-- If required, change the surface humidity/scalar at the start of the 3D
828	!-- run
829	IF ( ( humidity .OR. passive_scalar ) .AND. &
830	q_surface_initial_change /= 0.0 ) THEN
831	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
832	ENDIF
833
834	!
835	!-- Initialize the random number generator (from numerical recipes)
836	CALL random_function_ini
837
838	!
839	!-- Impose random perturbation on the horizontal velocity field and then
840	!-- remove the divergences from the velocity field
841	IF ( create_disturbances ) THEN
842	CALL disturb_field( nzb_u_inner, tend, u )
843	CALL disturb_field( nzb_v_inner, tend, v )
844	n_sor = nsor_ini
845	CALL pres
846	n_sor = nsor
847	ENDIF
848
849	!
850	!-- Once again set the perturbation pressure explicitly to zero in order to
851	!-- assure that it does not generate any divergences in the first time step.
852	!-- At t=0 the velocity field is free of divergence (as constructed above).
853	!-- Divergences being created during a time step are not yet known and thus
854	!-- cannot be corrected during the time step yet.
855	p = 0.0
856
857	!
858	!-- Initialize old and new time levels.
859	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
860	e_m = e; pt_m = pt; u_m = u; v_m = v; w_m = w; kh_m = kh; km_m = km
861	ELSE
862	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
863	ENDIF
864	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
865
866	IF ( humidity .OR. passive_scalar ) THEN
867	IF ( ASSOCIATED( q_m ) ) q_m = q
868	IF ( timestep_scheme(1:5) == 'runge' ) tq_m = 0.0
869	q_p = q
870	IF ( humidity .AND. ASSOCIATED( vpt_m ) ) vpt_m = vpt
871	ENDIF
872
873	IF ( ocean ) THEN
874	tsa_m = 0.0
875	sa_p = sa
876	ENDIF
877
878	!
879	!-- Initialize old timelevels needed for radiation boundary conditions
880	IF ( outflow_l ) THEN
881	u_m_l(:,:,:) = u(:,:,1:2)
882	v_m_l(:,:,:) = v(:,:,0:1)
883	w_m_l(:,:,:) = w(:,:,0:1)
884	ENDIF
885	IF ( outflow_r ) THEN
886	u_m_r(:,:,:) = u(:,:,nx-1:nx)
887	v_m_r(:,:,:) = v(:,:,nx-1:nx)
888	w_m_r(:,:,:) = w(:,:,nx-1:nx)
889	ENDIF
890	IF ( outflow_s ) THEN
891	u_m_s(:,:,:) = u(:,0:1,:)
892	v_m_s(:,:,:) = v(:,1:2,:)
893	w_m_s(:,:,:) = w(:,0:1,:)
894	ENDIF
895	IF ( outflow_n ) THEN
896	u_m_n(:,:,:) = u(:,ny-1:ny,:)
897	v_m_n(:,:,:) = v(:,ny-1:ny,:)
898	w_m_n(:,:,:) = w(:,ny-1:ny,:)
899	ENDIF
900
901	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' ) &
902	THEN
903	!
904	!-- Read binary data from restart file
905	CALL read_3d_binary
906
907	!
908	!-- Calculate initial temperature field and other constants used in case
909	!-- of a sloping surface
910	IF ( sloping_surface ) CALL init_slope
911
912	!
913	!-- Initialize new time levels (only done in order to set boundary values
914	!-- including ghost points)
915	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
916	IF ( humidity .OR. passive_scalar ) q_p = q
917	IF ( ocean ) sa_p = sa
918
919	ELSE
920	!
921	!-- Actually this part of the programm should not be reached
922	IF ( myid == 0 ) PRINT*,'+++ init_3d_model: unknown initializing ', &
923	'problem'
924	CALL local_stop
925	ENDIF
926
927	!
928	!-- If required, initialize dvrp-software
929	IF ( dt_dvrp /= 9999999.9 ) CALL init_dvrp
930
931	IF ( ocean ) THEN
932	!
933	!-- Initialize quantities needed for the ocean model
934	CALL init_ocean
935	ELSE
936	!
937	!-- Initialize quantities for handling cloud physics
938	!-- This routine must be called before init_particles, because
939	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
940	!-- init_particles) is not defined.
941	CALL init_cloud_physics
942	ENDIF
943
944	!
945	!-- If required, initialize particles
946	IF ( particle_advection ) CALL init_particles
947
948	!
949	!-- Initialize quantities for special advections schemes
950	CALL init_advec
951
952	!
953	!-- Initialize Rayleigh damping factors
954	rdf = 0.0
955	IF ( rayleigh_damping_factor /= 0.0 ) THEN
956	IF ( .NOT. ocean ) THEN
957	DO k = nzb+1, nzt
958	IF ( zu(k) >= rayleigh_damping_height ) THEN
959	rdf(k) = rayleigh_damping_factor * &
960	( SIN( pi * 0.5 * ( zu(k) - rayleigh_damping_height ) &
961	/ ( zu(nzt) - rayleigh_damping_height ) )&
962	)**2
963	ENDIF
964	ENDDO
965	ELSE
966	DO k = nzt, nzb+1, -1
967	IF ( zu(k) <= rayleigh_damping_height ) THEN
968	rdf(k) = rayleigh_damping_factor * &
969	( SIN( pi * 0.5 * ( rayleigh_damping_height - zu(k) ) &
970	/ ( rayleigh_damping_height - zu(nzb+1)))&
971	)**2
972	ENDIF
973	ENDDO
974	ENDIF
975	ENDIF
976
977	!
978	!-- Initialize diffusivities used within the outflow damping layer in case of
979	!-- non-cyclic lateral boundaries. A linear increase is assumed over the first
980	!-- half of the width of the damping layer
981	IF ( bc_lr == 'dirichlet/radiation' ) THEN
982
983	DO i = nxl-1, nxr+1
984	IF ( i >= nx - outflow_damping_width ) THEN
985	km_damp_x(i) = km_damp_max * MIN( 1.0, &
986	( i - ( nx - outflow_damping_width ) ) / &
987	REAL( outflow_damping_width/2 ) &
988	)
989	ELSE
990	km_damp_x(i) = 0.0
991	ENDIF
992	ENDDO
993
994	ELSEIF ( bc_lr == 'radiation/dirichlet' ) THEN
995
996	DO i = nxl-1, nxr+1
997	IF ( i <= outflow_damping_width ) THEN
998	km_damp_x(i) = km_damp_max * MIN( 1.0, &
999	( outflow_damping_width - i ) / &
1000	REAL( outflow_damping_width/2 ) &
1001	)
1002	ELSE
1003	km_damp_x(i) = 0.0
1004	ENDIF
1005	ENDDO
1006
1007	ENDIF
1008
1009	IF ( bc_ns == 'dirichlet/radiation' ) THEN
1010
1011	DO j = nys-1, nyn+1
1012	IF ( j >= ny - outflow_damping_width ) THEN
1013	km_damp_y(j) = km_damp_max * MIN( 1.0, &
1014	( j - ( ny - outflow_damping_width ) ) / &
1015	REAL( outflow_damping_width/2 ) &
1016	)
1017	ELSE
1018	km_damp_y(j) = 0.0
1019	ENDIF
1020	ENDDO
1021
1022	ELSEIF ( bc_ns == 'radiation/dirichlet' ) THEN
1023
1024	DO j = nys-1, nyn+1
1025	IF ( j <= outflow_damping_width ) THEN
1026	km_damp_y(j) = km_damp_max * MIN( 1.0, &
1027	( outflow_damping_width - j ) / &
1028	REAL( outflow_damping_width/2 ) &
1029	)
1030	ELSE
1031	km_damp_y(j) = 0.0
1032	ENDIF
1033	ENDDO
1034
1035	ENDIF
1036
1037	!
1038	!-- Initialize local summation arrays for UP flow_statistics. This is necessary
1039	!-- because they may not yet have been initialized when they are called from
1040	!-- flow_statistics (or - depending on the chosen model run - are never
1041	!-- initialized)
1042	sums_divnew_l = 0.0
1043	sums_divold_l = 0.0
1044	sums_l_l = 0.0
1045	sums_up_fraction_l = 0.0
1046	sums_wsts_bc_l = 0.0
1047
1048	!
1049	!-- Pre-set masks for regional statistics. Default is the total model domain.
1050	rmask = 1.0
1051
1052	!
1053	!-- User-defined initializing actions. Check afterwards, if maximum number
1054	!-- of allowed timeseries is not exceeded
1055	CALL user_init
1056
1057	IF ( dots_num > dots_max ) THEN
1058	IF ( myid == 0 ) THEN
1059	PRINT*, '+++ user_init: number of time series quantities exceeds', &
1060	' its maximum of dots_max = ', dots_max
1061	PRINT*, ' Please increase dots_max in modules.f90.'
1062	ENDIF
1063	CALL local_stop
1064	ENDIF
1065
1066	!
1067	!-- Input binary data file is not needed anymore. This line must be placed
1068	!-- after call of user_init!
1069	CALL close_file( 13 )
1070
1071	!
1072	!-- Compute total sum of active mask grid points
1073	!-- ngp_2dh: number of grid points of a horizontal cross section through the
1074	!-- total domain
1075	!-- ngp_3d: number of grid points of the total domain
1076	ngp_2dh_outer_l = 0
1077	ngp_2dh_outer = 0
1078	ngp_2dh_s_inner_l = 0
1079	ngp_2dh_s_inner = 0
1080	ngp_2dh_l = 0
1081	ngp_2dh = 0
1082	ngp_3d_inner_l = 0
1083	ngp_3d_inner = 0
1084	ngp_3d = 0
1085	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
1086
1087	DO sr = 0, statistic_regions
1088	DO i = nxl, nxr
1089	DO j = nys, nyn
1090	IF ( rmask(j,i,sr) == 1.0 ) THEN
1091	!
1092	!-- All xy-grid points
1093	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
1094	!
1095	!-- xy-grid points above topography
1096	DO k = nzb_s_outer(j,i), nz + 1
1097	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
1098	ENDDO
1099	DO k = nzb_s_inner(j,i), nz + 1
1100	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
1101	ENDDO
1102	!
1103	!-- All grid points of the total domain above topography
1104	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
1105	( nz - nzb_s_inner(j,i) + 2 )
1106	ENDIF
1107	ENDDO
1108	ENDDO
1109	ENDDO
1110
1111	sr = statistic_regions + 1
1112	#if defined( __parallel )
1113	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
1114	comm2d, ierr )
1115	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
1116	MPI_INTEGER, MPI_SUM, comm2d, ierr )
1117	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
1118	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
1119	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner(0), sr, MPI_INTEGER, &
1120	MPI_SUM, comm2d, ierr )
1121	#else
1122	ngp_2dh = ngp_2dh_l
1123	ngp_2dh_outer = ngp_2dh_outer_l
1124	ngp_2dh_s_inner = ngp_2dh_s_inner_l
1125	ngp_3d_inner = ngp_3d_inner_l
1126	#endif
1127
1128	ngp_3d = ngp_2dh * ( nz + 2 )
1129
1130	!
1131	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
1132	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
1133	!-- the respective subdomain lie below the surface topography
1134	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
1135	ngp_3d_inner = MAX( 1, ngp_3d_inner(:) )
1136
1137	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l )
1138
1139
1140	END SUBROUTINE init_3d_model

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source: palm/trunk/SOURCE/init_3d_model.f90 @ 137

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