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init_3d_model.f90 @ 115

Last change on this file since 115 was 110, checked in by raasch, 17 years ago

New:
---
Allows runs for a coupled atmosphere-ocean LES,
coupling frequency is controlled by new d3par-parameter dt_coupling,
the coupling mode (atmosphere_to_ocean or ocean_to_atmosphere) for the
respective processes is read from environment variable coupling_mode,
which is set by the mpiexec-command,
communication between the two models is done using the intercommunicator
comm_inter,
local files opened by the ocean model get the additional suffic "_O".
Assume saturation at k=nzb_s_inner(j,i) for atmosphere coupled to ocean.

A momentum flux can be set as top boundary condition using the new
inipar parameter top_momentumflux_u|v.

Non-cyclic boundary conditions can be used along all horizontal directions.

Quantities w*p* and w"e can be output as vertical profiles.

Initial profiles are reset to constant profiles in case that initializing_actions /= 'set_constant_profiles'. (init_rankine)

Optionally calculate km and kh from initial TKE e_init.

Changed:

Remaining variables iran changed to iran_part (advec_particles, init_particles).

In case that the presure solver is not called for every Runge-Kutta substep
(call_psolver_at_all_substeps = .F.), it is called after the first substep
instead of the last. In that case, random perturbations are also added to the
velocity field after the first substep.

Initialization of km,kh = 0.00001 for ocean = .T. (for ocean = .F. it remains 0.01).

Allow data_output_pr= q, wq, w"q", w*q* for humidity = .T. (instead of cloud_physics = .T.).

Errors:

Bugs from code parts for non-cyclic boundary conditions are removed: loops for
u and v are starting from index nxlu, nysv, respectively. The radiation boundary
condition is used for every Runge-Kutta substep. Velocity phase speeds for
the radiation boundary conditions are calculated for the first Runge-Kutta
substep only and reused for the further substeps. New arrays c_u, c_v, and c_w
are defined for this purpose. Several index errors are removed from the
radiation boundary condition code parts. Upper bounds for calculating
u_0 and v_0 (in production_e) are nxr+1 and nyn+1 because otherwise these
values are not available in case of non-cyclic boundary conditions.

+dots_num_palm in module user, +module netcdf_control in user_init (both in user_interface)

Bugfix: wrong sign removed from the buoyancy production term in the case use_reference = .T. (production_e)

Bugfix: Error message concerning output of particle concentration (pc) modified (check_parameters).

Bugfix: Rayleigh damping for ocean fixed.

Property svn:keywords set to Id

File size: 37.4 KB

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

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source: palm/trunk/SOURCE/init_3d_model.f90 @ 115

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