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source: palm/trunk/SOURCE/init_3d_model.f90 @ 787

Last change on this file since 787 was 787, checked in by heinze, 12 years ago
bugfix: call init_advec in every case - not only for inital runs
Property svn:keywords set to `Id`
File size: 58.9 KB

Line
1	#if defined( __ibmy_special )
2	@PROCESS NOOPTimize
3	#endif
4	SUBROUTINE init_3d_model
5
6	!------------------------------------------------------------------------------!
7	! Current revisions:
8	! ------------------
9	! bugfix: call init_advec in every case - not only for inital runs
10	!
11	! Former revisions:
12	! -----------------
13	! $Id: init_3d_model.f90 787 2011-11-28 12:49:05Z heinze $
14	!
15	! 785 2011-11-28 09:47:19Z raasch
16	! initialization of rdf_sc
17	!
18	! 767 2011-10-14 06:39:12Z raasch
19	! adjustments concerning implementation of prescribed u,v-profiles
20	! bugfix: dirichlet_0 conditions for ug/vg moved to check_parameters
21	!
22	! 759 2011-09-15 13:58:31Z raasch
23	! Splitting of parallel I/O in blocks of PEs
24	! Bugfix: No zero assignments to volume_flow_initial and volume_flow_area in
25	! case of normal restart runs.
26	!
27	! 713 2011-03-30 14:21:21Z suehring
28	! weight_substep and weight_pres are given as fractions.
29	!
30	! 709 2011-03-30 09:31:40Z raasch
31	! formatting adjustments
32	!
33	! 707 2011-03-29 11:39:40Z raasch
34	! p_sub renamed p_loc and allocated depending on the chosen pressure solver,
35	! initial assignments of zero to array p for iterative solvers only,
36	! bc_lr/ns replaced by bc_lr/ns_dirrad/raddir
37	!
38	! 680 2011-02-04 23:16:06Z gryschka
39	! bugfix: volume_flow_control
40	!
41	! 673 2011-01-18 16:19:48Z suehring
42	! weight_substep (moved from advec_ws) and weight_pres added.
43	! Allocate p_sub when using Multigrid or SOR solver.
44	! Call of ws_init moved behind the if requests.
45	!
46	! 667 2010-12-23 12:06:00Z suehring/gryschka
47	! nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng in loops and
48	! allocation of arrays. Calls of exchange_horiz are modified.
49	! Call ws_init to initialize arrays needed for calculating statisticas and for
50	! optimization when ws-scheme is used.
51	! Initial volume flow is now calculated by using the variable hom_sum.
52	! Therefore the correction of initial volume flow for non-flat topography
53	! removed (removed u_nzb_p1_for_vfc and v_nzb_p1_for_vfc)
54	! Changed surface boundary conditions for u and v in case of ibc_uv_b == 0 from
55	! mirror to Dirichlet boundary conditions (u=v=0), so that k=nzb is
56	! representative for the height z0.
57	! Bugfix: type conversion of '1' to 64bit for the MAX function (ngp_3d_inner)
58	!
59	! 622 2010-12-10 08:08:13Z raasch
60	! optional barriers included in order to speed up collective operations
61	!
62	! 560 2010-09-09 10:06:09Z weinreis
63	! bugfix: correction of calculating ngp_3d for 64 bit
64	!
65	! 485 2010-02-05 10:57:51Z raasch
66	! calculation of ngp_3d + ngp_3d_inner changed because they have now 64 bit
67	!
68	! 407 2009-12-01 15:01:15Z maronga
69	! var_ts is replaced by dots_max
70	! Enabled passive scalar/humidity wall fluxes for non-flat topography
71	!
72	! 388 2009-09-23 09:40:33Z raasch
73	! Initialization of prho added.
74	! bugfix: correction of initial volume flow for non-flat topography
75	! bugfix: zero initialization of arrays within buildings for 'cyclic_fill'
76	! bugfix: avoid that ngp_2dh_s_inner becomes zero
77	! initializing_actions='read_data_for_recycling' renamed to 'cyclic_fill', now
78	! independent of turbulent_inflow
79	! Output of messages replaced by message handling routine.
80	! Set the starting level and the vertical smoothing factor used for
81	! the external pressure gradient
82	! +conserve_volume_flow_mode: 'default', 'initial_profiles', 'inflow_profile'
83	! and 'bulk_velocity'
84	! If the inversion height calculated by the prerun is zero,
85	! inflow_damping_height must be explicitly specified.
86	!
87	! 181 2008-07-30 07:07:47Z raasch
88	! bugfix: zero assignments to tendency arrays in case of restarts,
89	! further extensions and modifications in the initialisation of the plant
90	! canopy model,
91	! allocation of hom_sum moved to parin, initialization of spectrum_x\|y directly
92	! after allocating theses arrays,
93	! read data for recycling added as new initialization option,
94	! dummy allocation for diss
95	!
96	! 138 2007-11-28 10:03:58Z letzel
97	! New counter ngp_2dh_s_inner.
98	! Allow new case bc_uv_t = 'dirichlet_0' for channel flow.
99	! Corrected calculation of initial volume flow for 'set_1d-model_profiles' and
100	! 'set_constant_profiles' in case of buildings in the reference cross-sections.
101	!
102	! 108 2007-08-24 15:10:38Z letzel
103	! Flux initialization in case of coupled runs, +momentum fluxes at top boundary,
104	! +arrays for phase speed c_u, c_v, c_w, indices for u\|v\|w_m_l\|r changed
105	! +qswst_remote in case of atmosphere model with humidity coupled to ocean
106	! Rayleigh damping for ocean, optionally calculate km and kh from initial
107	! TKE e_init
108	!
109	! 97 2007-06-21 08:23:15Z raasch
110	! Initialization of salinity, call of init_ocean
111	!
112	! 87 2007-05-22 15:46:47Z raasch
113	! var_hom and var_sum renamed pr_palm
114	!
115	! 75 2007-03-22 09:54:05Z raasch
116	! Arrays for radiation boundary conditions are allocated (u_m_l, u_m_r, etc.),
117	! bugfix for cases with the outflow damping layer extending over more than one
118	! subdomain, moisture renamed humidity,
119	! new initializing action "by_user" calls user_init_3d_model,
120	! precipitation_amount/rate, ts_value are allocated, +module netcdf_control,
121	! initial velocities at nzb+1 are regarded for volume
122	! flow control in case they have been set zero before (to avoid small timesteps)
123	! -uvmean_outflow, uxrp, vynp eliminated
124	!
125	! 19 2007-02-23 04:53:48Z raasch
126	! +handling of top fluxes
127	!
128	! RCS Log replace by Id keyword, revision history cleaned up
129	!
130	! Revision 1.49 2006/08/22 15:59:07 raasch
131	! No optimization of this file on the ibmy (Yonsei Univ.)
132	!
133	! Revision 1.1 1998/03/09 16:22:22 raasch
134	! Initial revision
135	!
136	!
137	! Description:
138	! ------------
139	! Allocation of arrays and initialization of the 3D model via
140	! a) pre-run the 1D model
141	! or
142	! b) pre-set constant linear profiles
143	! or
144	! c) read values of a previous run
145	!------------------------------------------------------------------------------!
146
147	USE advec_ws
148	USE arrays_3d
149	USE averaging
150	USE cloud_parameters
151	USE constants
152	USE control_parameters
153	USE cpulog
154	USE indices
155	USE interfaces
156	USE model_1d
157	USE netcdf_control
158	USE particle_attributes
159	USE pegrid
160	USE profil_parameter
161	USE random_function_mod
162	USE statistics
163
164	IMPLICIT NONE
165
166	INTEGER :: i, ind_array(1), j, k, sr
167
168	INTEGER, DIMENSION(:), ALLOCATABLE :: ngp_2dh_l
169
170	INTEGER, DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l, &
171	ngp_2dh_s_inner_l
172
173	REAL :: a, b
174
175	REAL, DIMENSION(1:2) :: volume_flow_area_l, volume_flow_initial_l
176
177	REAL, DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l, ngp_3d_inner_tmp
178
179
180	!
181	!-- Allocate arrays
182	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
183	ngp_3d(0:statistic_regions), &
184	ngp_3d_inner(0:statistic_regions), &
185	ngp_3d_inner_l(0:statistic_regions), &
186	ngp_3d_inner_tmp(0:statistic_regions), &
187	sums_divnew_l(0:statistic_regions), &
188	sums_divold_l(0:statistic_regions) )
189	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
190	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
191	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
192	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
193	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
194	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
195	sums(nzb:nzt+1,pr_palm+max_pr_user), &
196	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
197	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
198	sums_up_fraction_l(10,3,0:statistic_regions), &
199	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
200	ts_value(dots_max,0:statistic_regions) )
201	ALLOCATE( km_damp_x(nxlg:nxrg), km_damp_y(nysg:nyng) )
202
203	ALLOCATE( rif_1(nysg:nyng,nxlg:nxrg), shf_1(nysg:nyng,nxlg:nxrg), &
204	ts(nysg:nyng,nxlg:nxrg), tswst_1(nysg:nyng,nxlg:nxrg), &
205	us(nysg:nyng,nxlg:nxrg), usws_1(nysg:nyng,nxlg:nxrg), &
206	uswst_1(nysg:nyng,nxlg:nxrg), &
207	vsws_1(nysg:nyng,nxlg:nxrg), &
208	vswst_1(nysg:nyng,nxlg:nxrg), z0(nysg:nyng,nxlg:nxrg) )
209
210	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
211	!
212	!-- Leapfrog scheme needs two timelevels of diffusion quantities
213	ALLOCATE( rif_2(nysg:nyng,nxlg:nxrg), &
214	shf_2(nysg:nyng,nxlg:nxrg), &
215	tswst_2(nysg:nyng,nxlg:nxrg), &
216	usws_2(nysg:nyng,nxlg:nxrg), &
217	uswst_2(nysg:nyng,nxlg:nxrg), &
218	vswst_2(nysg:nyng,nxlg:nxrg), &
219	vsws_2(nysg:nyng,nxlg:nxrg) )
220	ENDIF
221
222	ALLOCATE( d(nzb+1:nzta,nys:nyna,nxl:nxra), &
223	e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
224	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
225	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
226	kh_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
227	km_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
228	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
229	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
230	pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
231	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
232	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
233	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
234	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
235	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
236	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
237	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
238	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
239	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
240	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
241	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
242	!
243	!-- Following array is required for perturbation pressure within the iterative
244	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
245	!-- the weighted average of the substeps and cannot be used in the Poisson
246	!-- solver.
247	IF ( psolver == 'sor' ) THEN
248	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
249	ELSEIF ( psolver == 'multigrid' ) THEN
250	!
251	!-- For performance reasons, multigrid is using one ghost layer only
252	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
253	ENDIF
254
255	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
256	ALLOCATE( kh_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
257	km_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
258	ENDIF
259
260	IF ( humidity .OR. passive_scalar ) THEN
261	!
262	!-- 2D-humidity/scalar arrays
263	ALLOCATE ( qs(nysg:nyng,nxlg:nxrg), &
264	qsws_1(nysg:nyng,nxlg:nxrg), &
265	qswst_1(nysg:nyng,nxlg:nxrg) )
266
267	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
268	ALLOCATE( qsws_2(nysg:nyng,nxlg:nxrg), &
269	qswst_2(nysg:nyng,nxlg:nxrg) )
270	ENDIF
271	!
272	!-- 3D-humidity/scalar arrays
273	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
274	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
275	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
276
277	!
278	!-- 3D-arrays needed for humidity only
279	IF ( humidity ) THEN
280	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
281
282	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
283	ALLOCATE( vpt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
284	ENDIF
285
286	IF ( cloud_physics ) THEN
287	!
288	!-- Liquid water content
289	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
290	!
291	!-- Precipitation amount and rate (only needed if output is switched)
292	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
293	precipitation_rate(nysg:nyng,nxlg:nxrg) )
294	ENDIF
295
296	IF ( cloud_droplets ) THEN
297	!
298	!-- Liquid water content, change in liquid water content,
299	!-- real volume of particles (with weighting), volume of particles
300	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
301	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
302	ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
303	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
304	ENDIF
305
306	ENDIF
307
308	ENDIF
309
310	IF ( ocean ) THEN
311	ALLOCATE( saswsb_1(nysg:nyng,nxlg:nxrg), &
312	saswst_1(nysg:nyng,nxlg:nxrg) )
313	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
314	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
315	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
316	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
317	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
318	prho => prho_1
319	rho => rho_1 ! routines calc_mean_profile and diffusion_e require
320	! density to be apointer
321	IF ( humidity_remote ) THEN
322	ALLOCATE( qswst_remote(nysg:nyng,nxlg:nxrg))
323	qswst_remote = 0.0
324	ENDIF
325	ENDIF
326
327	!
328	!-- 3D-array for storing the dissipation, needed for calculating the sgs
329	!-- particle velocities
330	IF ( use_sgs_for_particles ) THEN
331	ALLOCATE ( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
332	ELSE
333	ALLOCATE ( diss(2,2,2) ) ! required because diss is used as a
334	! formal parameter
335	ENDIF
336
337	IF ( dt_dosp /= 9999999.9 ) THEN
338	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
339	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
340	spectrum_x = 0.0
341	spectrum_y = 0.0
342	ENDIF
343
344	!
345	!-- 3D-arrays for the leaf area density and the canopy drag coefficient
346	IF ( plant_canopy ) THEN
347	ALLOCATE ( lad_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
348	lad_u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
349	lad_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
350	lad_w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
351	cdc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
352
353	IF ( passive_scalar ) THEN
354	ALLOCATE ( sls(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
355	sec(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
356	ENDIF
357
358	IF ( cthf /= 0.0 ) THEN
359	ALLOCATE ( lai(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
360	canopy_heat_flux(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
361	ENDIF
362
363	ENDIF
364
365	!
366	!-- 4D-array for storing the Rif-values at vertical walls
367	IF ( topography /= 'flat' ) THEN
368	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
369	rif_wall = 0.0
370	ENDIF
371
372	!
373	!-- Arrays to store velocity data from t-dt and the phase speeds which
374	!-- are needed for radiation boundary conditions
375	IF ( outflow_l ) THEN
376	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
377	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
378	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
379	ENDIF
380	IF ( outflow_r ) THEN
381	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
382	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
383	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
384	ENDIF
385	IF ( outflow_l .OR. outflow_r ) THEN
386	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
387	c_w(nzb:nzt+1,nysg:nyng) )
388	ENDIF
389	IF ( outflow_s ) THEN
390	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
391	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
392	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
393	ENDIF
394	IF ( outflow_n ) THEN
395	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
396	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
397	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
398	ENDIF
399	IF ( outflow_s .OR. outflow_n ) THEN
400	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
401	c_w(nzb:nzt+1,nxlg:nxrg) )
402	ENDIF
403
404	!
405	!-- Initial assignment of the pointers
406	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
407
408	rif_m => rif_1; rif => rif_2
409	shf_m => shf_1; shf => shf_2
410	tswst_m => tswst_1; tswst => tswst_2
411	usws_m => usws_1; usws => usws_2
412	uswst_m => uswst_1; uswst => uswst_2
413	vsws_m => vsws_1; vsws => vsws_2
414	vswst_m => vswst_1; vswst => vswst_2
415	e_m => e_1; e => e_2; e_p => e_3; te_m => e_3
416	kh_m => kh_1; kh => kh_2
417	km_m => km_1; km => km_2
418	pt_m => pt_1; pt => pt_2; pt_p => pt_3; tpt_m => pt_3
419	u_m => u_1; u => u_2; u_p => u_3; tu_m => u_3
420	v_m => v_1; v => v_2; v_p => v_3; tv_m => v_3
421	w_m => w_1; w => w_2; w_p => w_3; tw_m => w_3
422
423	IF ( humidity .OR. passive_scalar ) THEN
424	qsws_m => qsws_1; qsws => qsws_2
425	qswst_m => qswst_1; qswst => qswst_2
426	q_m => q_1; q => q_2; q_p => q_3; tq_m => q_3
427	IF ( humidity ) vpt_m => vpt_1; vpt => vpt_2
428	IF ( cloud_physics ) ql => ql_1
429	IF ( cloud_droplets ) THEN
430	ql => ql_1
431	ql_c => ql_2
432	ENDIF
433	ENDIF
434
435	ELSE
436
437	rif => rif_1
438	shf => shf_1
439	tswst => tswst_1
440	usws => usws_1
441	uswst => uswst_1
442	vsws => vsws_1
443	vswst => vswst_1
444	e => e_1; e_p => e_2; te_m => e_3; e_m => e_3
445	kh => kh_1
446	km => km_1
447	pt => pt_1; pt_p => pt_2; tpt_m => pt_3; pt_m => pt_3
448	u => u_1; u_p => u_2; tu_m => u_3; u_m => u_3
449	v => v_1; v_p => v_2; tv_m => v_3; v_m => v_3
450	w => w_1; w_p => w_2; tw_m => w_3; w_m => w_3
451
452	IF ( humidity .OR. passive_scalar ) THEN
453	qsws => qsws_1
454	qswst => qswst_1
455	q => q_1; q_p => q_2; tq_m => q_3; q_m => q_3
456	IF ( humidity ) vpt => vpt_1
457	IF ( cloud_physics ) ql => ql_1
458	IF ( cloud_droplets ) THEN
459	ql => ql_1
460	ql_c => ql_2
461	ENDIF
462	ENDIF
463
464	IF ( ocean ) THEN
465	saswsb => saswsb_1
466	saswst => saswst_1
467	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
468	ENDIF
469
470	ENDIF
471
472	!
473	!-- Allocate arrays containing the RK coefficient for calculation of
474	!-- perturbation pressure and turbulent fluxes. At this point values are
475	!-- set for pressure calculation during initialization (where no timestep
476	!-- is done). Further below the values needed within the timestep scheme
477	!-- will be set.
478	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
479	weight_pres(1:intermediate_timestep_count_max) )
480	weight_substep = 1.0
481	weight_pres = 1.0
482	intermediate_timestep_count = 1 ! needed when simulated_time = 0.0
483
484	!
485	!-- Initialize model variables
486	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
487	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
488	!
489	!-- First model run of a possible job queue.
490	!-- Initial profiles of the variables must be computes.
491	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
492	!
493	!-- Use solutions of the 1D model as initial profiles,
494	!-- start 1D model
495	CALL init_1d_model
496	!
497	!-- Transfer initial profiles to the arrays of the 3D model
498	DO i = nxlg, nxrg
499	DO j = nysg, nyng
500	e(:,j,i) = e1d
501	kh(:,j,i) = kh1d
502	km(:,j,i) = km1d
503	pt(:,j,i) = pt_init
504	u(:,j,i) = u1d
505	v(:,j,i) = v1d
506	ENDDO
507	ENDDO
508
509	IF ( humidity .OR. passive_scalar ) THEN
510	DO i = nxlg, nxrg
511	DO j = nysg, nyng
512	q(:,j,i) = q_init
513	ENDDO
514	ENDDO
515	ENDIF
516
517	IF ( .NOT. constant_diffusion ) THEN
518	DO i = nxlg, nxrg
519	DO j = nysg, nyng
520	e(:,j,i) = e1d
521	ENDDO
522	ENDDO
523	!
524	!-- Store initial profiles for output purposes etc.
525	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
526
527	IF ( prandtl_layer ) THEN
528	rif = rif1d(nzb+1)
529	ts = 0.0 ! could actually be computed more accurately in the
530	! 1D model. Update when opportunity arises.
531	us = us1d
532	usws = usws1d
533	vsws = vsws1d
534	ELSE
535	ts = 0.0 ! must be set, because used in
536	rif = 0.0 ! flowste
537	us = 0.0
538	usws = 0.0
539	vsws = 0.0
540	ENDIF
541
542	ELSE
543	e = 0.0 ! must be set, because used in
544	rif = 0.0 ! flowste
545	ts = 0.0
546	us = 0.0
547	usws = 0.0
548	vsws = 0.0
549	ENDIF
550	uswst = top_momentumflux_u
551	vswst = top_momentumflux_v
552
553	!
554	!-- In every case qs = 0.0 (see also pt)
555	!-- This could actually be computed more accurately in the 1D model.
556	!-- Update when opportunity arises!
557	IF ( humidity .OR. passive_scalar ) qs = 0.0
558
559	!
560	!-- inside buildings set velocities back to zero
561	IF ( topography /= 'flat' ) THEN
562	DO i = nxl-1, nxr+1
563	DO j = nys-1, nyn+1
564	u(nzb:nzb_u_inner(j,i),j,i) = 0.0
565	v(nzb:nzb_v_inner(j,i),j,i) = 0.0
566	ENDDO
567	ENDDO
568
569	!
570	!-- WARNING: The extra boundary conditions set after running the
571	!-- ------- 1D model impose an error on the divergence one layer
572	!-- below the topography; need to correct later
573	!-- ATTENTION: Provisional correction for Piacsek & Williams
574	!-- --------- advection scheme: keep u and v zero one layer below
575	!-- the topography.
576	!
577	!-- Following was removed, because mirror boundary condition are
578	!-- replaced by dirichlet boundary conditions
579	!
580	! IF ( ibc_uv_b == 0 ) THEN
581	!!
582	!!-- Satisfying the Dirichlet condition with an extra layer below
583	!!-- the surface where the u and v component change their sign.
584	! DO i = nxl-1, nxr+1
585	! DO j = nys-1, nyn+1
586	! IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = -u(1,j,i)
587	! IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = -v(1,j,i)
588	! ENDDO
589	! ENDDO
590	!
591	! ELSE
592	IF ( ibc_uv_b == 1 ) THEN
593	!
594	!-- Neumann condition
595	DO i = nxl-1, nxr+1
596	DO j = nys-1, nyn+1
597	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
598	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
599	ENDDO
600	ENDDO
601
602	ENDIF
603
604	ENDIF
605
606	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
607	THEN
608	!
609	!-- Use constructed initial profiles (velocity constant with height,
610	!-- temperature profile with constant gradient)
611	DO i = nxlg, nxrg
612	DO j = nysg, nyng
613	pt(:,j,i) = pt_init
614	u(:,j,i) = u_init
615	v(:,j,i) = v_init
616	ENDDO
617	ENDDO
618
619	!
620	!-- Set initial horizontal velocities at the lowest computational grid
621	!-- levels to zero in order to avoid too small time steps caused by the
622	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
623	!-- in the limiting formula!). The original values are stored to be later
624	!-- used for volume flow control.
625	DO i = nxlg, nxrg
626	DO j = nysg, nyng
627	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0
628	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0
629	ENDDO
630	ENDDO
631
632	IF ( humidity .OR. passive_scalar ) THEN
633	DO i = nxlg, nxrg
634	DO j = nysg, nyng
635	q(:,j,i) = q_init
636	ENDDO
637	ENDDO
638	ENDIF
639
640	IF ( ocean ) THEN
641	DO i = nxlg, nxrg
642	DO j = nysg, nyng
643	sa(:,j,i) = sa_init
644	ENDDO
645	ENDDO
646	ENDIF
647
648	IF ( constant_diffusion ) THEN
649	km = km_constant
650	kh = km / prandtl_number
651	e = 0.0
652	ELSEIF ( e_init > 0.0 ) THEN
653	DO k = nzb+1, nzt
654	km(k,:,:) = 0.1 * l_grid(k) * SQRT( e_init )
655	ENDDO
656	km(nzb,:,:) = km(nzb+1,:,:)
657	km(nzt+1,:,:) = km(nzt,:,:)
658	kh = km / prandtl_number
659	e = e_init
660	ELSE
661	IF ( .NOT. ocean ) THEN
662	kh = 0.01 ! there must exist an initial diffusion, because
663	km = 0.01 ! otherwise no TKE would be produced by the
664	! production terms, as long as not yet
665	! e = (u/cm)*2 at k=nzb+1
666	ELSE
667	kh = 0.00001
668	km = 0.00001
669	ENDIF
670	e = 0.0
671	ENDIF
672	rif = 0.0
673	ts = 0.0
674	us = 0.0
675	usws = 0.0
676	uswst = top_momentumflux_u
677	vsws = 0.0
678	vswst = top_momentumflux_v
679	IF ( humidity .OR. passive_scalar ) qs = 0.0
680
681	!
682	!-- Compute initial temperature field and other constants used in case
683	!-- of a sloping surface
684	IF ( sloping_surface ) CALL init_slope
685
686	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
687	THEN
688	!
689	!-- Initialization will completely be done by the user
690	CALL user_init_3d_model
691
692	ENDIF
693	!
694	!-- Bottom boundary
695	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
696	u(nzb,:,:) = 0.0
697	v(nzb,:,:) = 0.0
698	ENDIF
699
700	!
701	!-- Apply channel flow boundary condition
702	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
703	u(nzt+1,:,:) = 0.0
704	v(nzt+1,:,:) = 0.0
705	ENDIF
706
707	!
708	!-- Calculate virtual potential temperature
709	IF ( humidity ) vpt = pt * ( 1.0 + 0.61 * q )
710
711	!
712	!-- Store initial profiles for output purposes etc.
713	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
714	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
715	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
716	hom(nzb,1,5,:) = 0.0
717	hom(nzb,1,6,:) = 0.0
718	ENDIF
719	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
720	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
721	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
722
723	IF ( ocean ) THEN
724	!
725	!-- Store initial salinity profile
726	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
727	ENDIF
728
729	IF ( humidity ) THEN
730	!
731	!-- Store initial profile of total water content, virtual potential
732	!-- temperature
733	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
734	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
735	IF ( cloud_physics .OR. cloud_droplets ) THEN
736	!
737	!-- Store initial profile of specific humidity and potential
738	!-- temperature
739	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
740	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
741	ENDIF
742	ENDIF
743
744	IF ( passive_scalar ) THEN
745	!
746	!-- Store initial scalar profile
747	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
748	ENDIF
749
750	!
751	!-- Initialize fluxes at bottom surface
752	IF ( use_surface_fluxes ) THEN
753
754	IF ( constant_heatflux ) THEN
755	!
756	!-- Heat flux is prescribed
757	IF ( random_heatflux ) THEN
758	CALL disturb_heatflux
759	ELSE
760	shf = surface_heatflux
761	!
762	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
763	IF ( TRIM( topography ) /= 'flat' ) THEN
764	DO i = nxlg, nxrg
765	DO j = nysg, nyng
766	IF ( nzb_s_inner(j,i) /= 0 ) THEN
767	shf(j,i) = wall_heatflux(0)
768	ENDIF
769	ENDDO
770	ENDDO
771	ENDIF
772	ENDIF
773	IF ( ASSOCIATED( shf_m ) ) shf_m = shf
774	ENDIF
775
776	!
777	!-- Determine the near-surface water flux
778	IF ( humidity .OR. passive_scalar ) THEN
779	IF ( constant_waterflux ) THEN
780	qsws = surface_waterflux
781	!
782	!-- Over topography surface_waterflux is replaced by
783	!-- wall_humidityflux(0)
784	IF ( TRIM( topography ) /= 'flat' ) THEN
785	wall_qflux = wall_humidityflux
786	DO i = nxlg, nxrg
787	DO j = nysg, nyng
788	IF ( nzb_s_inner(j,i) /= 0 ) THEN
789	qsws(j,i) = wall_qflux(0)
790	ENDIF
791	ENDDO
792	ENDDO
793	ENDIF
794	IF ( ASSOCIATED( qsws_m ) ) qsws_m = qsws
795	ENDIF
796	ENDIF
797
798	ENDIF
799
800	!
801	!-- Initialize fluxes at top surface
802	!-- Currently, only the heatflux and salinity flux can be prescribed.
803	!-- The latent flux is zero in this case!
804	IF ( use_top_fluxes ) THEN
805
806	IF ( constant_top_heatflux ) THEN
807	!
808	!-- Heat flux is prescribed
809	tswst = top_heatflux
810	IF ( ASSOCIATED( tswst_m ) ) tswst_m = tswst
811
812	IF ( humidity .OR. passive_scalar ) THEN
813	qswst = 0.0
814	IF ( ASSOCIATED( qswst_m ) ) qswst_m = qswst
815	ENDIF
816
817	IF ( ocean ) THEN
818	saswsb = bottom_salinityflux
819	saswst = top_salinityflux
820	ENDIF
821	ENDIF
822
823	!
824	!-- Initialization in case of a coupled model run
825	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
826	tswst = 0.0
827	IF ( ASSOCIATED( tswst_m ) ) tswst_m = tswst
828	ENDIF
829
830	ENDIF
831
832	!
833	!-- Initialize Prandtl layer quantities
834	IF ( prandtl_layer ) THEN
835
836	z0 = roughness_length
837
838	IF ( .NOT. constant_heatflux ) THEN
839	!
840	!-- Surface temperature is prescribed. Here the heat flux cannot be
841	!-- simply estimated, because therefore rif, u* and theta* would have
842	!-- to be computed by iteration. This is why the heat flux is assumed
843	!-- to be zero before the first time step. It approaches its correct
844	!-- value in the course of the first few time steps.
845	shf = 0.0
846	IF ( ASSOCIATED( shf_m ) ) shf_m = 0.0
847	ENDIF
848
849	IF ( humidity .OR. passive_scalar ) THEN
850	IF ( .NOT. constant_waterflux ) THEN
851	qsws = 0.0
852	IF ( ASSOCIATED( qsws_m ) ) qsws_m = 0.0
853	ENDIF
854	ENDIF
855
856	ENDIF
857
858
859	!
860	!-- For the moment, vertical velocity is zero
861	w = 0.0
862
863	!
864	!-- Initialize array sums (must be defined in first call of pres)
865	sums = 0.0
866
867	!
868	!-- In case of iterative solvers, p must get an initial value
869	IF ( psolver == 'multigrid' .OR. psolver == 'sor' ) p = 0.0
870
871	!
872	!-- Treating cloud physics, liquid water content and precipitation amount
873	!-- are zero at beginning of the simulation
874	IF ( cloud_physics ) THEN
875	ql = 0.0
876	IF ( precipitation ) precipitation_amount = 0.0
877	ENDIF
878	!
879	!-- Impose vortex with vertical axis on the initial velocity profile
880	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
881	CALL init_rankine
882	ENDIF
883
884	!
885	!-- Impose temperature anomaly (advection test only)
886	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
887	CALL init_pt_anomaly
888	ENDIF
889
890	!
891	!-- If required, change the surface temperature at the start of the 3D run
892	IF ( pt_surface_initial_change /= 0.0 ) THEN
893	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
894	ENDIF
895
896	!
897	!-- If required, change the surface humidity/scalar at the start of the 3D
898	!-- run
899	IF ( ( humidity .OR. passive_scalar ) .AND. &
900	q_surface_initial_change /= 0.0 ) THEN
901	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
902	ENDIF
903
904	!
905	!-- Initialize the random number generator (from numerical recipes)
906	CALL random_function_ini
907
908	!
909	!-- Initialize old and new time levels.
910	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
911	e_m = e; pt_m = pt; u_m = u; v_m = v; w_m = w; kh_m = kh; km_m = km
912	ELSE
913	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
914	ENDIF
915	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
916
917	IF ( humidity .OR. passive_scalar ) THEN
918	IF ( ASSOCIATED( q_m ) ) q_m = q
919	IF ( timestep_scheme(1:5) == 'runge' ) tq_m = 0.0
920	q_p = q
921	IF ( humidity .AND. ASSOCIATED( vpt_m ) ) vpt_m = vpt
922	ENDIF
923
924	IF ( ocean ) THEN
925	tsa_m = 0.0
926	sa_p = sa
927	ENDIF
928
929
930	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
931	TRIM( initializing_actions ) == 'cyclic_fill' ) &
932	THEN
933	!
934	!-- When reading data for cyclic fill of 3D prerun data files, read
935	!-- some of the global variables from the restart file which are required
936	!-- for initializing the inflow
937	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
938
939	DO i = 0, io_blocks-1
940	IF ( i == io_group ) THEN
941	CALL read_parts_of_var_list
942	CALL close_file( 13 )
943	ENDIF
944	#if defined( __parallel )
945	CALL MPI_BARRIER( comm2d, ierr )
946	#endif
947	ENDDO
948
949	ENDIF
950
951	!
952	!-- Read binary data from restart file
953	DO i = 0, io_blocks-1
954	IF ( i == io_group ) THEN
955	CALL read_3d_binary
956	ENDIF
957	#if defined( __parallel )
958	CALL MPI_BARRIER( comm2d, ierr )
959	#endif
960	ENDDO
961
962	!
963	!-- Initialization of the turbulence recycling method
964	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
965	turbulent_inflow ) THEN
966	!
967	!-- First store the profiles to be used at the inflow.
968	!-- These profiles are the (temporally) and horizontally averaged vertical
969	!-- profiles from the prerun. Alternatively, prescribed profiles
970	!-- for u,v-components can be used.
971	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,5) )
972
973	IF ( use_prescribed_profile_data ) THEN
974	mean_inflow_profiles(:,1) = u_init ! u
975	mean_inflow_profiles(:,2) = v_init ! v
976	ELSE
977	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
978	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
979	ENDIF
980	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
981	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
982
983	!
984	!-- If necessary, adjust the horizontal flow field to the prescribed
985	!-- profiles
986	IF ( use_prescribed_profile_data ) THEN
987	DO i = nxlg, nxrg
988	DO j = nysg, nyng
989	DO k = nzb, nzt+1
990	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
991	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
992	ENDDO
993	ENDDO
994	ENDDO
995	ENDIF
996
997	!
998	!-- Use these mean profiles at the inflow (provided that Dirichlet
999	!-- conditions are used)
1000	IF ( inflow_l ) THEN
1001	DO j = nysg, nyng
1002	DO k = nzb, nzt+1
1003	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
1004	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
1005	w(k,j,nxlg:-1) = 0.0
1006	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
1007	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
1008	ENDDO
1009	ENDDO
1010	ENDIF
1011
1012	!
1013	!-- Calculate the damping factors to be used at the inflow. For a
1014	!-- turbulent inflow the turbulent fluctuations have to be limited
1015	!-- vertically because otherwise the turbulent inflow layer will grow
1016	!-- in time.
1017	IF ( inflow_damping_height == 9999999.9 ) THEN
1018	!
1019	!-- Default: use the inversion height calculated by the prerun; if
1020	!-- this is zero, inflow_damping_height must be explicitly
1021	!-- specified.
1022	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0 ) THEN
1023	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
1024	ELSE
1025	WRITE( message_string, * ) 'inflow_damping_height must be ',&
1026	'explicitly specified because&the inversion height ', &
1027	'calculated by the prerun is zero.'
1028	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
1029	ENDIF
1030
1031	ENDIF
1032
1033	IF ( inflow_damping_width == 9999999.9 ) THEN
1034	!
1035	!-- Default for the transition range: one tenth of the undamped
1036	!-- layer
1037	inflow_damping_width = 0.1 * inflow_damping_height
1038
1039	ENDIF
1040
1041	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
1042
1043	DO k = nzb, nzt+1
1044
1045	IF ( zu(k) <= inflow_damping_height ) THEN
1046	inflow_damping_factor(k) = 1.0
1047	ELSEIF ( zu(k) <= inflow_damping_height + &
1048	inflow_damping_width ) THEN
1049	inflow_damping_factor(k) = 1.0 - &
1050	( zu(k) - inflow_damping_height ) / &
1051	inflow_damping_width
1052	ELSE
1053	inflow_damping_factor(k) = 0.0
1054	ENDIF
1055
1056	ENDDO
1057
1058	ENDIF
1059
1060	!
1061	!-- Inside buildings set velocities and TKE back to zero
1062	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1063	topography /= 'flat' ) THEN
1064	!
1065	!-- Inside buildings set velocities and TKE back to zero.
1066	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
1067	!-- maybe revise later.
1068	IF ( timestep_scheme(1:5) == 'runge' ) THEN
1069	DO i = nxlg, nxrg
1070	DO j = nysg, nyng
1071	u (nzb:nzb_u_inner(j,i),j,i) = 0.0
1072	v (nzb:nzb_v_inner(j,i),j,i) = 0.0
1073	w (nzb:nzb_w_inner(j,i),j,i) = 0.0
1074	e (nzb:nzb_w_inner(j,i),j,i) = 0.0
1075	u_m(nzb:nzb_u_inner(j,i),j,i) = 0.0
1076	v_m(nzb:nzb_v_inner(j,i),j,i) = 0.0
1077	w_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1078	e_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1079	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0
1080	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0
1081	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1082	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1083	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1084	ENDDO
1085	ENDDO
1086	ELSE
1087	DO i = nxlg, nxrg
1088	DO j = nysg, nyng
1089	u (nzb:nzb_u_inner(j,i),j,i) = 0.0
1090	v (nzb:nzb_v_inner(j,i),j,i) = 0.0
1091	w (nzb:nzb_w_inner(j,i),j,i) = 0.0
1092	e (nzb:nzb_w_inner(j,i),j,i) = 0.0
1093	u_m(nzb:nzb_u_inner(j,i),j,i) = 0.0
1094	v_m(nzb:nzb_v_inner(j,i),j,i) = 0.0
1095	w_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1096	e_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1097	u_p(nzb:nzb_u_inner(j,i),j,i) = 0.0
1098	v_p(nzb:nzb_v_inner(j,i),j,i) = 0.0
1099	w_p(nzb:nzb_w_inner(j,i),j,i) = 0.0
1100	e_p(nzb:nzb_w_inner(j,i),j,i) = 0.0
1101	ENDDO
1102	ENDDO
1103	ENDIF
1104
1105	ENDIF
1106
1107	!
1108	!-- Calculate initial temperature field and other constants used in case
1109	!-- of a sloping surface
1110	IF ( sloping_surface ) CALL init_slope
1111
1112	!
1113	!-- Initialize new time levels (only done in order to set boundary values
1114	!-- including ghost points)
1115	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1116	IF ( humidity .OR. passive_scalar ) q_p = q
1117	IF ( ocean ) sa_p = sa
1118
1119	!
1120	!-- Allthough tendency arrays are set in prognostic_equations, they have
1121	!-- have to be predefined here because they are used (but multiplied with 0)
1122	!-- there before they are set.
1123	IF ( timestep_scheme(1:5) == 'runge' ) THEN
1124	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
1125	IF ( humidity .OR. passive_scalar ) tq_m = 0.0
1126	IF ( ocean ) tsa_m = 0.0
1127	ENDIF
1128
1129	ELSE
1130	!
1131	!-- Actually this part of the programm should not be reached
1132	message_string = 'unknown initializing problem'
1133	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
1134	ENDIF
1135
1136
1137	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1138	!
1139	!-- Initialize old timelevels needed for radiation boundary conditions
1140	IF ( outflow_l ) THEN
1141	u_m_l(:,:,:) = u(:,:,1:2)
1142	v_m_l(:,:,:) = v(:,:,0:1)
1143	w_m_l(:,:,:) = w(:,:,0:1)
1144	ENDIF
1145	IF ( outflow_r ) THEN
1146	u_m_r(:,:,:) = u(:,:,nx-1:nx)
1147	v_m_r(:,:,:) = v(:,:,nx-1:nx)
1148	w_m_r(:,:,:) = w(:,:,nx-1:nx)
1149	ENDIF
1150	IF ( outflow_s ) THEN
1151	u_m_s(:,:,:) = u(:,0:1,:)
1152	v_m_s(:,:,:) = v(:,1:2,:)
1153	w_m_s(:,:,:) = w(:,0:1,:)
1154	ENDIF
1155	IF ( outflow_n ) THEN
1156	u_m_n(:,:,:) = u(:,ny-1:ny,:)
1157	v_m_n(:,:,:) = v(:,ny-1:ny,:)
1158	w_m_n(:,:,:) = w(:,ny-1:ny,:)
1159	ENDIF
1160
1161	ENDIF
1162
1163	!
1164	!-- Calculate the initial volume flow at the right and north boundary
1165	IF ( conserve_volume_flow ) THEN
1166
1167	IF ( use_prescribed_profile_data ) THEN
1168
1169	volume_flow_initial_l = 0.0
1170	volume_flow_area_l = 0.0
1171
1172	IF ( nxr == nx ) THEN
1173	DO j = nys, nyn
1174	DO k = nzb_2d(j,nx)+1, nzt
1175	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1176	u_init(k) * dzw(k)
1177	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1178	ENDDO
1179	ENDDO
1180	ENDIF
1181
1182	IF ( nyn == ny ) THEN
1183	DO i = nxl, nxr
1184	DO k = nzb_2d(ny,i)+1, nzt
1185	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1186	v_init(k) * dzw(k)
1187	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1188	ENDDO
1189	ENDDO
1190	ENDIF
1191
1192	#if defined( __parallel )
1193	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1194	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1195	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1196	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1197
1198	#else
1199	volume_flow_initial = volume_flow_initial_l
1200	volume_flow_area = volume_flow_area_l
1201	#endif
1202
1203	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1204
1205	volume_flow_initial_l = 0.0
1206	volume_flow_area_l = 0.0
1207
1208	IF ( nxr == nx ) THEN
1209	DO j = nys, nyn
1210	DO k = nzb_2d(j,nx)+1, nzt
1211	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1212	hom_sum(k,1,0) * dzw(k)
1213	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1214	ENDDO
1215	ENDDO
1216	ENDIF
1217
1218	IF ( nyn == ny ) THEN
1219	DO i = nxl, nxr
1220	DO k = nzb_2d(ny,i)+1, nzt
1221	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1222	hom_sum(k,2,0) * dzw(k)
1223	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1224	ENDDO
1225	ENDDO
1226	ENDIF
1227
1228	#if defined( __parallel )
1229	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1230	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1231	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1232	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1233
1234	#else
1235	volume_flow_initial = volume_flow_initial_l
1236	volume_flow_area = volume_flow_area_l
1237	#endif
1238
1239	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1240
1241	volume_flow_initial_l = 0.0
1242	volume_flow_area_l = 0.0
1243
1244	IF ( nxr == nx ) THEN
1245	DO j = nys, nyn
1246	DO k = nzb_2d(j,nx)+1, nzt
1247	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1248	u(k,j,nx) * dzw(k)
1249	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1250	ENDDO
1251	ENDDO
1252	ENDIF
1253
1254	IF ( nyn == ny ) THEN
1255	DO i = nxl, nxr
1256	DO k = nzb_2d(ny,i)+1, nzt
1257	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1258	v(k,ny,i) * dzw(k)
1259	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1260	ENDDO
1261	ENDDO
1262	ENDIF
1263
1264	#if defined( __parallel )
1265	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1266	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1267	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1268	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1269
1270	#else
1271	volume_flow_initial = volume_flow_initial_l
1272	volume_flow_area = volume_flow_area_l
1273	#endif
1274
1275	ENDIF
1276
1277	!
1278	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
1279	!-- from u\|v_bulk instead
1280	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
1281	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
1282	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
1283	ENDIF
1284
1285	ENDIF
1286
1287	!
1288	!-- Initialize quantities for special advections schemes
1289	CALL init_advec
1290
1291	!
1292	!-- Impose random perturbation on the horizontal velocity field and then
1293	!-- remove the divergences from the velocity field at the initial stage
1294	IF ( create_disturbances .AND. &
1295	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1296	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1297
1298	CALL disturb_field( nzb_u_inner, tend, u )
1299	CALL disturb_field( nzb_v_inner, tend, v )
1300	n_sor = nsor_ini
1301	CALL pres
1302	n_sor = nsor
1303	ENDIF
1304
1305	!
1306	!-- Initialization of the leaf area density
1307	IF ( plant_canopy ) THEN
1308
1309	SELECT CASE ( TRIM( canopy_mode ) )
1310
1311	CASE( 'block' )
1312
1313	DO i = nxlg, nxrg
1314	DO j = nysg, nyng
1315	lad_s(:,j,i) = lad(:)
1316	cdc(:,j,i) = drag_coefficient
1317	IF ( passive_scalar ) THEN
1318	sls(:,j,i) = leaf_surface_concentration
1319	sec(:,j,i) = scalar_exchange_coefficient
1320	ENDIF
1321	ENDDO
1322	ENDDO
1323
1324	CASE DEFAULT
1325
1326	!
1327	!-- The DEFAULT case is reached either if the parameter
1328	!-- canopy mode contains a wrong character string or if the
1329	!-- user has coded a special case in the user interface.
1330	!-- There, the subroutine user_init_plant_canopy checks
1331	!-- which of these two conditions applies.
1332	CALL user_init_plant_canopy
1333
1334	END SELECT
1335
1336	CALL exchange_horiz( lad_s, nbgp )
1337	CALL exchange_horiz( cdc, nbgp )
1338
1339	IF ( passive_scalar ) THEN
1340	CALL exchange_horiz( sls, nbgp )
1341	CALL exchange_horiz( sec, nbgp )
1342	ENDIF
1343
1344	!
1345	!-- Sharp boundaries of the plant canopy in horizontal directions
1346	!-- In vertical direction the interpolation is retained, as the leaf
1347	!-- area density is initialised by prescribing a vertical profile
1348	!-- consisting of piecewise linear segments. The upper boundary
1349	!-- of the plant canopy is now defined by lad_w(pch_index,:,:) = 0.0.
1350
1351	DO i = nxl, nxr
1352	DO j = nys, nyn
1353	DO k = nzb, nzt+1
1354	IF ( lad_s(k,j,i) > 0.0 ) THEN
1355	lad_u(k,j,i) = lad_s(k,j,i)
1356	lad_u(k,j,i+1) = lad_s(k,j,i)
1357	lad_v(k,j,i) = lad_s(k,j,i)
1358	lad_v(k,j+1,i) = lad_s(k,j,i)
1359	ENDIF
1360	ENDDO
1361	DO k = nzb, nzt
1362	lad_w(k,j,i) = 0.5 * ( lad_s(k+1,j,i) + lad_s(k,j,i) )
1363	ENDDO
1364	ENDDO
1365	ENDDO
1366
1367	lad_w(pch_index,:,:) = 0.0
1368	lad_w(nzt+1,:,:) = lad_w(nzt,:,:)
1369
1370	CALL exchange_horiz( lad_u, nbgp )
1371	CALL exchange_horiz( lad_v, nbgp )
1372	CALL exchange_horiz( lad_w, nbgp )
1373
1374	!
1375	!-- Initialisation of the canopy heat source distribution
1376	IF ( cthf /= 0.0 ) THEN
1377	!
1378	!-- Piecewise evaluation of the leaf area index by
1379	!-- integration of the leaf area density
1380	lai(:,:,:) = 0.0
1381	DO i = nxlg, nxrg
1382	DO j = nysg, nyng
1383	DO k = pch_index-1, 0, -1
1384	lai(k,j,i) = lai(k+1,j,i) + &
1385	( 0.5 * ( lad_w(k+1,j,i) + &
1386	lad_s(k+1,j,i) ) * &
1387	( zw(k+1) - zu(k+1) ) ) + &
1388	( 0.5 * ( lad_w(k,j,i) + &
1389	lad_s(k+1,j,i) ) * &
1390	( zu(k+1) - zw(k) ) )
1391	ENDDO
1392	ENDDO
1393	ENDDO
1394
1395	!
1396	!-- Evaluation of the upward kinematic vertical heat flux within the
1397	!-- canopy
1398	DO i = nxlg, nxrg
1399	DO j = nysg, nyng
1400	DO k = 0, pch_index
1401	canopy_heat_flux(k,j,i) = cthf * &
1402	exp( -0.6 * lai(k,j,i) )
1403	ENDDO
1404	ENDDO
1405	ENDDO
1406
1407	!
1408	!-- The near surface heat flux is derived from the heat flux
1409	!-- distribution within the canopy
1410	shf(:,:) = canopy_heat_flux(0,:,:)
1411
1412	IF ( ASSOCIATED( shf_m ) ) shf_m = shf
1413
1414	ENDIF
1415
1416	ENDIF
1417
1418	!
1419	!-- If required, initialize dvrp-software
1420	IF ( dt_dvrp /= 9999999.9 ) CALL init_dvrp
1421
1422	IF ( ocean ) THEN
1423	!
1424	!-- Initialize quantities needed for the ocean model
1425	CALL init_ocean
1426
1427	ELSE
1428	!
1429	!-- Initialize quantities for handling cloud physics
1430	!-- This routine must be called before init_particles, because
1431	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
1432	!-- init_particles) is not defined.
1433	CALL init_cloud_physics
1434	ENDIF
1435
1436	!
1437	!-- If required, initialize particles
1438	IF ( particle_advection ) CALL init_particles
1439
1440	!
1441	!-- Initialize the ws-scheme.
1442	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
1443
1444	!
1445	!-- Setting weighting factors for calculation of perturbation pressure
1446	!-- and turbulent quantities from the RK substeps
1447	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
1448
1449	weight_substep(1) = 1./6.
1450	weight_substep(2) = 3./10.
1451	weight_substep(3) = 8./15.
1452
1453	weight_pres(1) = 1./3.
1454	weight_pres(2) = 5./12.
1455	weight_pres(3) = 1./4.
1456
1457	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
1458
1459	weight_substep(1) = 1./2.
1460	weight_substep(2) = 1./2.
1461
1462	weight_pres(1) = 1./2.
1463	weight_pres(2) = 1./2.
1464
1465	ELSE ! for Euler- and leapfrog-method
1466
1467	weight_substep(1) = 1.0
1468	weight_pres(1) = 1.0
1469
1470	ENDIF
1471
1472	!
1473	!-- Initialize Rayleigh damping factors
1474	rdf = 0.0
1475	rdf_sc = 0.0
1476	IF ( rayleigh_damping_factor /= 0.0 ) THEN
1477	IF ( .NOT. ocean ) THEN
1478	DO k = nzb+1, nzt
1479	IF ( zu(k) >= rayleigh_damping_height ) THEN
1480	rdf(k) = rayleigh_damping_factor * &
1481	( SIN( pi * 0.5 * ( zu(k) - rayleigh_damping_height ) &
1482	/ ( zu(nzt) - rayleigh_damping_height ) )&
1483	)**2
1484	ENDIF
1485	ENDDO
1486	ELSE
1487	DO k = nzt, nzb+1, -1
1488	IF ( zu(k) <= rayleigh_damping_height ) THEN
1489	rdf(k) = rayleigh_damping_factor * &
1490	( SIN( pi * 0.5 * ( rayleigh_damping_height - zu(k) ) &
1491	/ ( rayleigh_damping_height - zu(nzb+1)))&
1492	)**2
1493	ENDIF
1494	ENDDO
1495	ENDIF
1496	ENDIF
1497	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
1498
1499	!
1500	!-- Initialize the starting level and the vertical smoothing factor used for
1501	!-- the external pressure gradient
1502	dp_smooth_factor = 1.0
1503	IF ( dp_external ) THEN
1504	!
1505	!-- Set the starting level dp_level_ind_b only if it has not been set before
1506	!-- (e.g. in init_grid).
1507	IF ( dp_level_ind_b == 0 ) THEN
1508	ind_array = MINLOC( ABS( dp_level_b - zu ) )
1509	dp_level_ind_b = ind_array(1) - 1 + nzb
1510	! MINLOC uses lower array bound 1
1511	ENDIF
1512	IF ( dp_smooth ) THEN
1513	dp_smooth_factor(:dp_level_ind_b) = 0.0
1514	DO k = dp_level_ind_b+1, nzt
1515	dp_smooth_factor(k) = 0.5 * ( 1.0 + SIN( pi * &
1516	( REAL( k - dp_level_ind_b ) / &
1517	REAL( nzt - dp_level_ind_b ) - 0.5 ) ) )
1518	ENDDO
1519	ENDIF
1520	ENDIF
1521
1522	!
1523	!-- Initialize diffusivities used within the outflow damping layer in case of
1524	!-- non-cyclic lateral boundaries. A linear increase is assumed over the first
1525	!-- half of the width of the damping layer
1526	IF ( bc_lr_dirrad ) THEN
1527
1528	DO i = nxlg, nxrg
1529	IF ( i >= nx - outflow_damping_width ) THEN
1530	km_damp_x(i) = km_damp_max * MIN( 1.0, &
1531	( i - ( nx - outflow_damping_width ) ) / &
1532	REAL( outflow_damping_width/2 ) &
1533	)
1534	ELSE
1535	km_damp_x(i) = 0.0
1536	ENDIF
1537	ENDDO
1538
1539	ELSEIF ( bc_lr_raddir ) THEN
1540
1541	DO i = nxlg, nxrg
1542	IF ( i <= outflow_damping_width ) THEN
1543	km_damp_x(i) = km_damp_max * MIN( 1.0, &
1544	( outflow_damping_width - i ) / &
1545	REAL( outflow_damping_width/2 ) &
1546	)
1547	ELSE
1548	km_damp_x(i) = 0.0
1549	ENDIF
1550	ENDDO
1551
1552	ENDIF
1553
1554	IF ( bc_ns_dirrad ) THEN
1555
1556	DO j = nysg, nyng
1557	IF ( j >= ny - outflow_damping_width ) THEN
1558	km_damp_y(j) = km_damp_max * MIN( 1.0, &
1559	( j - ( ny - outflow_damping_width ) ) / &
1560	REAL( outflow_damping_width/2 ) &
1561	)
1562	ELSE
1563	km_damp_y(j) = 0.0
1564	ENDIF
1565	ENDDO
1566
1567	ELSEIF ( bc_ns_raddir ) THEN
1568
1569	DO j = nysg, nyng
1570	IF ( j <= outflow_damping_width ) THEN
1571	km_damp_y(j) = km_damp_max * MIN( 1.0, &
1572	( outflow_damping_width - j ) / &
1573	REAL( outflow_damping_width/2 ) &
1574	)
1575	ELSE
1576	km_damp_y(j) = 0.0
1577	ENDIF
1578	ENDDO
1579
1580	ENDIF
1581
1582	!
1583	!-- Initialize local summation arrays for routine flow_statistics.
1584	!-- This is necessary because they may not yet have been initialized when they
1585	!-- are called from flow_statistics (or - depending on the chosen model run -
1586	!-- are never initialized)
1587	sums_divnew_l = 0.0
1588	sums_divold_l = 0.0
1589	sums_l_l = 0.0
1590	sums_up_fraction_l = 0.0
1591	sums_wsts_bc_l = 0.0
1592
1593	!
1594	!-- Pre-set masks for regional statistics. Default is the total model domain.
1595	rmask = 1.0
1596
1597	!
1598	!-- User-defined initializing actions. Check afterwards, if maximum number
1599	!-- of allowed timeseries is exceeded
1600	CALL user_init
1601
1602	IF ( dots_num > dots_max ) THEN
1603	WRITE( message_string, * ) 'number of time series quantities exceeds', &
1604	' its maximum of dots_max = ', dots_max, &
1605	' &Please increase dots_max in modules.f90.'
1606	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
1607	ENDIF
1608
1609	!
1610	!-- Input binary data file is not needed anymore. This line must be placed
1611	!-- after call of user_init!
1612	CALL close_file( 13 )
1613
1614	!
1615	!-- Compute total sum of active mask grid points
1616	!-- ngp_2dh: number of grid points of a horizontal cross section through the
1617	!-- total domain
1618	!-- ngp_3d: number of grid points of the total domain
1619	ngp_2dh_outer_l = 0
1620	ngp_2dh_outer = 0
1621	ngp_2dh_s_inner_l = 0
1622	ngp_2dh_s_inner = 0
1623	ngp_2dh_l = 0
1624	ngp_2dh = 0
1625	ngp_3d_inner_l = 0.0
1626	ngp_3d_inner = 0
1627	ngp_3d = 0
1628	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
1629
1630	DO sr = 0, statistic_regions
1631	DO i = nxl, nxr
1632	DO j = nys, nyn
1633	IF ( rmask(j,i,sr) == 1.0 ) THEN
1634	!
1635	!-- All xy-grid points
1636	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
1637	!
1638	!-- xy-grid points above topography
1639	DO k = nzb_s_outer(j,i), nz + 1
1640	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
1641	ENDDO
1642	DO k = nzb_s_inner(j,i), nz + 1
1643	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
1644	ENDDO
1645	!
1646	!-- All grid points of the total domain above topography
1647	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
1648	( nz - nzb_s_inner(j,i) + 2 )
1649	ENDIF
1650	ENDDO
1651	ENDDO
1652	ENDDO
1653
1654	sr = statistic_regions + 1
1655	#if defined( __parallel )
1656	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1657	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
1658	comm2d, ierr )
1659	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1660	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
1661	MPI_INTEGER, MPI_SUM, comm2d, ierr )
1662	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1663	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
1664	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
1665	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1666	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
1667	MPI_SUM, comm2d, ierr )
1668	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
1669	#else
1670	ngp_2dh = ngp_2dh_l
1671	ngp_2dh_outer = ngp_2dh_outer_l
1672	ngp_2dh_s_inner = ngp_2dh_s_inner_l
1673	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
1674	#endif
1675
1676	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
1677	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
1678
1679	!
1680	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
1681	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
1682	!-- the respective subdomain lie below the surface topography
1683	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
1684	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
1685	ngp_3d_inner(:) )
1686	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
1687
1688	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, ngp_3d_inner_tmp )
1689
1690
1691	END SUBROUTINE init_3d_model

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