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source: palm/trunk/SOURCE/init_3d_model.f90 @ 788

Last change on this file since 788 was 788, checked in by heinze, 12 years ago
last commit documented
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1	#if defined( __ibmy_special )
2	@PROCESS NOOPTimize
3	#endif
4	SUBROUTINE init_3d_model
5
6	!------------------------------------------------------------------------------!
7	! Current revisions:
8	! ------------------
9	!
10	!
11	! Former revisions:
12	! -----------------
13	! $Id: init_3d_model.f90 788 2011-11-28 12:50:57Z heinze $
14	!
15	! 787 2011-11-28 12:49:05Z heinze $
16	! bugfix: call init_advec in every case - not only for inital runs
17	!
18	! 785 2011-11-28 09:47:19Z raasch
19	! initialization of rdf_sc
20	!
21	! 767 2011-10-14 06:39:12Z raasch
22	! adjustments concerning implementation of prescribed u,v-profiles
23	! bugfix: dirichlet_0 conditions for ug/vg moved to check_parameters
24	!
25	! 759 2011-09-15 13:58:31Z raasch
26	! Splitting of parallel I/O in blocks of PEs
27	! Bugfix: No zero assignments to volume_flow_initial and volume_flow_area in
28	! case of normal restart runs.
29	!
30	! 713 2011-03-30 14:21:21Z suehring
31	! weight_substep and weight_pres are given as fractions.
32	!
33	! 709 2011-03-30 09:31:40Z raasch
34	! formatting adjustments
35	!
36	! 707 2011-03-29 11:39:40Z raasch
37	! p_sub renamed p_loc and allocated depending on the chosen pressure solver,
38	! initial assignments of zero to array p for iterative solvers only,
39	! bc_lr/ns replaced by bc_lr/ns_dirrad/raddir
40	!
41	! 680 2011-02-04 23:16:06Z gryschka
42	! bugfix: volume_flow_control
43	!
44	! 673 2011-01-18 16:19:48Z suehring
45	! weight_substep (moved from advec_ws) and weight_pres added.
46	! Allocate p_sub when using Multigrid or SOR solver.
47	! Call of ws_init moved behind the if requests.
48	!
49	! 667 2010-12-23 12:06:00Z suehring/gryschka
50	! nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng in loops and
51	! allocation of arrays. Calls of exchange_horiz are modified.
52	! Call ws_init to initialize arrays needed for calculating statisticas and for
53	! optimization when ws-scheme is used.
54	! Initial volume flow is now calculated by using the variable hom_sum.
55	! Therefore the correction of initial volume flow for non-flat topography
56	! removed (removed u_nzb_p1_for_vfc and v_nzb_p1_for_vfc)
57	! Changed surface boundary conditions for u and v in case of ibc_uv_b == 0 from
58	! mirror to Dirichlet boundary conditions (u=v=0), so that k=nzb is
59	! representative for the height z0.
60	! Bugfix: type conversion of '1' to 64bit for the MAX function (ngp_3d_inner)
61	!
62	! 622 2010-12-10 08:08:13Z raasch
63	! optional barriers included in order to speed up collective operations
64	!
65	! 560 2010-09-09 10:06:09Z weinreis
66	! bugfix: correction of calculating ngp_3d for 64 bit
67	!
68	! 485 2010-02-05 10:57:51Z raasch
69	! calculation of ngp_3d + ngp_3d_inner changed because they have now 64 bit
70	!
71	! 407 2009-12-01 15:01:15Z maronga
72	! var_ts is replaced by dots_max
73	! Enabled passive scalar/humidity wall fluxes for non-flat topography
74	!
75	! 388 2009-09-23 09:40:33Z raasch
76	! Initialization of prho added.
77	! bugfix: correction of initial volume flow for non-flat topography
78	! bugfix: zero initialization of arrays within buildings for 'cyclic_fill'
79	! bugfix: avoid that ngp_2dh_s_inner becomes zero
80	! initializing_actions='read_data_for_recycling' renamed to 'cyclic_fill', now
81	! independent of turbulent_inflow
82	! Output of messages replaced by message handling routine.
83	! Set the starting level and the vertical smoothing factor used for
84	! the external pressure gradient
85	! +conserve_volume_flow_mode: 'default', 'initial_profiles', 'inflow_profile'
86	! and 'bulk_velocity'
87	! If the inversion height calculated by the prerun is zero,
88	! inflow_damping_height must be explicitly specified.
89	!
90	! 181 2008-07-30 07:07:47Z raasch
91	! bugfix: zero assignments to tendency arrays in case of restarts,
92	! further extensions and modifications in the initialisation of the plant
93	! canopy model,
94	! allocation of hom_sum moved to parin, initialization of spectrum_x\|y directly
95	! after allocating theses arrays,
96	! read data for recycling added as new initialization option,
97	! dummy allocation for diss
98	!
99	! 138 2007-11-28 10:03:58Z letzel
100	! New counter ngp_2dh_s_inner.
101	! Allow new case bc_uv_t = 'dirichlet_0' for channel flow.
102	! Corrected calculation of initial volume flow for 'set_1d-model_profiles' and
103	! 'set_constant_profiles' in case of buildings in the reference cross-sections.
104	!
105	! 108 2007-08-24 15:10:38Z letzel
106	! Flux initialization in case of coupled runs, +momentum fluxes at top boundary,
107	! +arrays for phase speed c_u, c_v, c_w, indices for u\|v\|w_m_l\|r changed
108	! +qswst_remote in case of atmosphere model with humidity coupled to ocean
109	! Rayleigh damping for ocean, optionally calculate km and kh from initial
110	! TKE e_init
111	!
112	! 97 2007-06-21 08:23:15Z raasch
113	! Initialization of salinity, call of init_ocean
114	!
115	! 87 2007-05-22 15:46:47Z raasch
116	! var_hom and var_sum renamed pr_palm
117	!
118	! 75 2007-03-22 09:54:05Z raasch
119	! Arrays for radiation boundary conditions are allocated (u_m_l, u_m_r, etc.),
120	! bugfix for cases with the outflow damping layer extending over more than one
121	! subdomain, moisture renamed humidity,
122	! new initializing action "by_user" calls user_init_3d_model,
123	! precipitation_amount/rate, ts_value are allocated, +module netcdf_control,
124	! initial velocities at nzb+1 are regarded for volume
125	! flow control in case they have been set zero before (to avoid small timesteps)
126	! -uvmean_outflow, uxrp, vynp eliminated
127	!
128	! 19 2007-02-23 04:53:48Z raasch
129	! +handling of top fluxes
130	!
131	! RCS Log replace by Id keyword, revision history cleaned up
132	!
133	! Revision 1.49 2006/08/22 15:59:07 raasch
134	! No optimization of this file on the ibmy (Yonsei Univ.)
135	!
136	! Revision 1.1 1998/03/09 16:22:22 raasch
137	! Initial revision
138	!
139	!
140	! Description:
141	! ------------
142	! Allocation of arrays and initialization of the 3D model via
143	! a) pre-run the 1D model
144	! or
145	! b) pre-set constant linear profiles
146	! or
147	! c) read values of a previous run
148	!------------------------------------------------------------------------------!
149
150	USE advec_ws
151	USE arrays_3d
152	USE averaging
153	USE cloud_parameters
154	USE constants
155	USE control_parameters
156	USE cpulog
157	USE indices
158	USE interfaces
159	USE model_1d
160	USE netcdf_control
161	USE particle_attributes
162	USE pegrid
163	USE profil_parameter
164	USE random_function_mod
165	USE statistics
166
167	IMPLICIT NONE
168
169	INTEGER :: i, ind_array(1), j, k, sr
170
171	INTEGER, DIMENSION(:), ALLOCATABLE :: ngp_2dh_l
172
173	INTEGER, DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l, &
174	ngp_2dh_s_inner_l
175
176	REAL :: a, b
177
178	REAL, DIMENSION(1:2) :: volume_flow_area_l, volume_flow_initial_l
179
180	REAL, DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l, ngp_3d_inner_tmp
181
182
183	!
184	!-- Allocate arrays
185	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
186	ngp_3d(0:statistic_regions), &
187	ngp_3d_inner(0:statistic_regions), &
188	ngp_3d_inner_l(0:statistic_regions), &
189	ngp_3d_inner_tmp(0:statistic_regions), &
190	sums_divnew_l(0:statistic_regions), &
191	sums_divold_l(0:statistic_regions) )
192	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
193	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
194	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
195	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
196	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
197	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
198	sums(nzb:nzt+1,pr_palm+max_pr_user), &
199	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
200	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
201	sums_up_fraction_l(10,3,0:statistic_regions), &
202	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
203	ts_value(dots_max,0:statistic_regions) )
204	ALLOCATE( km_damp_x(nxlg:nxrg), km_damp_y(nysg:nyng) )
205
206	ALLOCATE( rif_1(nysg:nyng,nxlg:nxrg), shf_1(nysg:nyng,nxlg:nxrg), &
207	ts(nysg:nyng,nxlg:nxrg), tswst_1(nysg:nyng,nxlg:nxrg), &
208	us(nysg:nyng,nxlg:nxrg), usws_1(nysg:nyng,nxlg:nxrg), &
209	uswst_1(nysg:nyng,nxlg:nxrg), &
210	vsws_1(nysg:nyng,nxlg:nxrg), &
211	vswst_1(nysg:nyng,nxlg:nxrg), z0(nysg:nyng,nxlg:nxrg) )
212
213	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
214	!
215	!-- Leapfrog scheme needs two timelevels of diffusion quantities
216	ALLOCATE( rif_2(nysg:nyng,nxlg:nxrg), &
217	shf_2(nysg:nyng,nxlg:nxrg), &
218	tswst_2(nysg:nyng,nxlg:nxrg), &
219	usws_2(nysg:nyng,nxlg:nxrg), &
220	uswst_2(nysg:nyng,nxlg:nxrg), &
221	vswst_2(nysg:nyng,nxlg:nxrg), &
222	vsws_2(nysg:nyng,nxlg:nxrg) )
223	ENDIF
224
225	ALLOCATE( d(nzb+1:nzta,nys:nyna,nxl:nxra), &
226	e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
227	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
228	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
229	kh_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
230	km_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
231	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
232	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
233	pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
234	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
235	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
236	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
237	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
238	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
239	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
240	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
241	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
242	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
243	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
244	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
245	!
246	!-- Following array is required for perturbation pressure within the iterative
247	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
248	!-- the weighted average of the substeps and cannot be used in the Poisson
249	!-- solver.
250	IF ( psolver == 'sor' ) THEN
251	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
252	ELSEIF ( psolver == 'multigrid' ) THEN
253	!
254	!-- For performance reasons, multigrid is using one ghost layer only
255	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
256	ENDIF
257
258	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
259	ALLOCATE( kh_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
260	km_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
261	ENDIF
262
263	IF ( humidity .OR. passive_scalar ) THEN
264	!
265	!-- 2D-humidity/scalar arrays
266	ALLOCATE ( qs(nysg:nyng,nxlg:nxrg), &
267	qsws_1(nysg:nyng,nxlg:nxrg), &
268	qswst_1(nysg:nyng,nxlg:nxrg) )
269
270	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
271	ALLOCATE( qsws_2(nysg:nyng,nxlg:nxrg), &
272	qswst_2(nysg:nyng,nxlg:nxrg) )
273	ENDIF
274	!
275	!-- 3D-humidity/scalar arrays
276	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
277	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
278	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
279
280	!
281	!-- 3D-arrays needed for humidity only
282	IF ( humidity ) THEN
283	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
284
285	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
286	ALLOCATE( vpt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
287	ENDIF
288
289	IF ( cloud_physics ) THEN
290	!
291	!-- Liquid water content
292	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
293	!
294	!-- Precipitation amount and rate (only needed if output is switched)
295	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
296	precipitation_rate(nysg:nyng,nxlg:nxrg) )
297	ENDIF
298
299	IF ( cloud_droplets ) THEN
300	!
301	!-- Liquid water content, change in liquid water content,
302	!-- real volume of particles (with weighting), volume of particles
303	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
304	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
305	ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
306	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
307	ENDIF
308
309	ENDIF
310
311	ENDIF
312
313	IF ( ocean ) THEN
314	ALLOCATE( saswsb_1(nysg:nyng,nxlg:nxrg), &
315	saswst_1(nysg:nyng,nxlg:nxrg) )
316	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
317	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
318	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
319	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
320	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
321	prho => prho_1
322	rho => rho_1 ! routines calc_mean_profile and diffusion_e require
323	! density to be apointer
324	IF ( humidity_remote ) THEN
325	ALLOCATE( qswst_remote(nysg:nyng,nxlg:nxrg))
326	qswst_remote = 0.0
327	ENDIF
328	ENDIF
329
330	!
331	!-- 3D-array for storing the dissipation, needed for calculating the sgs
332	!-- particle velocities
333	IF ( use_sgs_for_particles ) THEN
334	ALLOCATE ( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
335	ELSE
336	ALLOCATE ( diss(2,2,2) ) ! required because diss is used as a
337	! formal parameter
338	ENDIF
339
340	IF ( dt_dosp /= 9999999.9 ) THEN
341	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
342	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
343	spectrum_x = 0.0
344	spectrum_y = 0.0
345	ENDIF
346
347	!
348	!-- 3D-arrays for the leaf area density and the canopy drag coefficient
349	IF ( plant_canopy ) THEN
350	ALLOCATE ( lad_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
351	lad_u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
352	lad_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
353	lad_w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
354	cdc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
355
356	IF ( passive_scalar ) THEN
357	ALLOCATE ( sls(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
358	sec(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
359	ENDIF
360
361	IF ( cthf /= 0.0 ) THEN
362	ALLOCATE ( lai(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
363	canopy_heat_flux(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
364	ENDIF
365
366	ENDIF
367
368	!
369	!-- 4D-array for storing the Rif-values at vertical walls
370	IF ( topography /= 'flat' ) THEN
371	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
372	rif_wall = 0.0
373	ENDIF
374
375	!
376	!-- Arrays to store velocity data from t-dt and the phase speeds which
377	!-- are needed for radiation boundary conditions
378	IF ( outflow_l ) THEN
379	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
380	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
381	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
382	ENDIF
383	IF ( outflow_r ) THEN
384	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
385	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
386	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
387	ENDIF
388	IF ( outflow_l .OR. outflow_r ) THEN
389	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
390	c_w(nzb:nzt+1,nysg:nyng) )
391	ENDIF
392	IF ( outflow_s ) THEN
393	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
394	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
395	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
396	ENDIF
397	IF ( outflow_n ) THEN
398	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
399	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
400	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
401	ENDIF
402	IF ( outflow_s .OR. outflow_n ) THEN
403	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
404	c_w(nzb:nzt+1,nxlg:nxrg) )
405	ENDIF
406
407	!
408	!-- Initial assignment of the pointers
409	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
410
411	rif_m => rif_1; rif => rif_2
412	shf_m => shf_1; shf => shf_2
413	tswst_m => tswst_1; tswst => tswst_2
414	usws_m => usws_1; usws => usws_2
415	uswst_m => uswst_1; uswst => uswst_2
416	vsws_m => vsws_1; vsws => vsws_2
417	vswst_m => vswst_1; vswst => vswst_2
418	e_m => e_1; e => e_2; e_p => e_3; te_m => e_3
419	kh_m => kh_1; kh => kh_2
420	km_m => km_1; km => km_2
421	pt_m => pt_1; pt => pt_2; pt_p => pt_3; tpt_m => pt_3
422	u_m => u_1; u => u_2; u_p => u_3; tu_m => u_3
423	v_m => v_1; v => v_2; v_p => v_3; tv_m => v_3
424	w_m => w_1; w => w_2; w_p => w_3; tw_m => w_3
425
426	IF ( humidity .OR. passive_scalar ) THEN
427	qsws_m => qsws_1; qsws => qsws_2
428	qswst_m => qswst_1; qswst => qswst_2
429	q_m => q_1; q => q_2; q_p => q_3; tq_m => q_3
430	IF ( humidity ) vpt_m => vpt_1; vpt => vpt_2
431	IF ( cloud_physics ) ql => ql_1
432	IF ( cloud_droplets ) THEN
433	ql => ql_1
434	ql_c => ql_2
435	ENDIF
436	ENDIF
437
438	ELSE
439
440	rif => rif_1
441	shf => shf_1
442	tswst => tswst_1
443	usws => usws_1
444	uswst => uswst_1
445	vsws => vsws_1
446	vswst => vswst_1
447	e => e_1; e_p => e_2; te_m => e_3; e_m => e_3
448	kh => kh_1
449	km => km_1
450	pt => pt_1; pt_p => pt_2; tpt_m => pt_3; pt_m => pt_3
451	u => u_1; u_p => u_2; tu_m => u_3; u_m => u_3
452	v => v_1; v_p => v_2; tv_m => v_3; v_m => v_3
453	w => w_1; w_p => w_2; tw_m => w_3; w_m => w_3
454
455	IF ( humidity .OR. passive_scalar ) THEN
456	qsws => qsws_1
457	qswst => qswst_1
458	q => q_1; q_p => q_2; tq_m => q_3; q_m => q_3
459	IF ( humidity ) vpt => vpt_1
460	IF ( cloud_physics ) ql => ql_1
461	IF ( cloud_droplets ) THEN
462	ql => ql_1
463	ql_c => ql_2
464	ENDIF
465	ENDIF
466
467	IF ( ocean ) THEN
468	saswsb => saswsb_1
469	saswst => saswst_1
470	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
471	ENDIF
472
473	ENDIF
474
475	!
476	!-- Allocate arrays containing the RK coefficient for calculation of
477	!-- perturbation pressure and turbulent fluxes. At this point values are
478	!-- set for pressure calculation during initialization (where no timestep
479	!-- is done). Further below the values needed within the timestep scheme
480	!-- will be set.
481	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
482	weight_pres(1:intermediate_timestep_count_max) )
483	weight_substep = 1.0
484	weight_pres = 1.0
485	intermediate_timestep_count = 1 ! needed when simulated_time = 0.0
486
487	!
488	!-- Initialize model variables
489	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
490	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
491	!
492	!-- First model run of a possible job queue.
493	!-- Initial profiles of the variables must be computes.
494	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
495	!
496	!-- Use solutions of the 1D model as initial profiles,
497	!-- start 1D model
498	CALL init_1d_model
499	!
500	!-- Transfer initial profiles to the arrays of the 3D model
501	DO i = nxlg, nxrg
502	DO j = nysg, nyng
503	e(:,j,i) = e1d
504	kh(:,j,i) = kh1d
505	km(:,j,i) = km1d
506	pt(:,j,i) = pt_init
507	u(:,j,i) = u1d
508	v(:,j,i) = v1d
509	ENDDO
510	ENDDO
511
512	IF ( humidity .OR. passive_scalar ) THEN
513	DO i = nxlg, nxrg
514	DO j = nysg, nyng
515	q(:,j,i) = q_init
516	ENDDO
517	ENDDO
518	ENDIF
519
520	IF ( .NOT. constant_diffusion ) THEN
521	DO i = nxlg, nxrg
522	DO j = nysg, nyng
523	e(:,j,i) = e1d
524	ENDDO
525	ENDDO
526	!
527	!-- Store initial profiles for output purposes etc.
528	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
529
530	IF ( prandtl_layer ) THEN
531	rif = rif1d(nzb+1)
532	ts = 0.0 ! could actually be computed more accurately in the
533	! 1D model. Update when opportunity arises.
534	us = us1d
535	usws = usws1d
536	vsws = vsws1d
537	ELSE
538	ts = 0.0 ! must be set, because used in
539	rif = 0.0 ! flowste
540	us = 0.0
541	usws = 0.0
542	vsws = 0.0
543	ENDIF
544
545	ELSE
546	e = 0.0 ! must be set, because used in
547	rif = 0.0 ! flowste
548	ts = 0.0
549	us = 0.0
550	usws = 0.0
551	vsws = 0.0
552	ENDIF
553	uswst = top_momentumflux_u
554	vswst = top_momentumflux_v
555
556	!
557	!-- In every case qs = 0.0 (see also pt)
558	!-- This could actually be computed more accurately in the 1D model.
559	!-- Update when opportunity arises!
560	IF ( humidity .OR. passive_scalar ) qs = 0.0
561
562	!
563	!-- inside buildings set velocities back to zero
564	IF ( topography /= 'flat' ) THEN
565	DO i = nxl-1, nxr+1
566	DO j = nys-1, nyn+1
567	u(nzb:nzb_u_inner(j,i),j,i) = 0.0
568	v(nzb:nzb_v_inner(j,i),j,i) = 0.0
569	ENDDO
570	ENDDO
571
572	!
573	!-- WARNING: The extra boundary conditions set after running the
574	!-- ------- 1D model impose an error on the divergence one layer
575	!-- below the topography; need to correct later
576	!-- ATTENTION: Provisional correction for Piacsek & Williams
577	!-- --------- advection scheme: keep u and v zero one layer below
578	!-- the topography.
579	!
580	!-- Following was removed, because mirror boundary condition are
581	!-- replaced by dirichlet boundary conditions
582	!
583	! IF ( ibc_uv_b == 0 ) THEN
584	!!
585	!!-- Satisfying the Dirichlet condition with an extra layer below
586	!!-- the surface where the u and v component change their sign.
587	! DO i = nxl-1, nxr+1
588	! DO j = nys-1, nyn+1
589	! IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = -u(1,j,i)
590	! IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = -v(1,j,i)
591	! ENDDO
592	! ENDDO
593	!
594	! ELSE
595	IF ( ibc_uv_b == 1 ) THEN
596	!
597	!-- Neumann condition
598	DO i = nxl-1, nxr+1
599	DO j = nys-1, nyn+1
600	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
601	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
602	ENDDO
603	ENDDO
604
605	ENDIF
606
607	ENDIF
608
609	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
610	THEN
611	!
612	!-- Use constructed initial profiles (velocity constant with height,
613	!-- temperature profile with constant gradient)
614	DO i = nxlg, nxrg
615	DO j = nysg, nyng
616	pt(:,j,i) = pt_init
617	u(:,j,i) = u_init
618	v(:,j,i) = v_init
619	ENDDO
620	ENDDO
621
622	!
623	!-- Set initial horizontal velocities at the lowest computational grid
624	!-- levels to zero in order to avoid too small time steps caused by the
625	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
626	!-- in the limiting formula!). The original values are stored to be later
627	!-- used for volume flow control.
628	DO i = nxlg, nxrg
629	DO j = nysg, nyng
630	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0
631	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0
632	ENDDO
633	ENDDO
634
635	IF ( humidity .OR. passive_scalar ) THEN
636	DO i = nxlg, nxrg
637	DO j = nysg, nyng
638	q(:,j,i) = q_init
639	ENDDO
640	ENDDO
641	ENDIF
642
643	IF ( ocean ) THEN
644	DO i = nxlg, nxrg
645	DO j = nysg, nyng
646	sa(:,j,i) = sa_init
647	ENDDO
648	ENDDO
649	ENDIF
650
651	IF ( constant_diffusion ) THEN
652	km = km_constant
653	kh = km / prandtl_number
654	e = 0.0
655	ELSEIF ( e_init > 0.0 ) THEN
656	DO k = nzb+1, nzt
657	km(k,:,:) = 0.1 * l_grid(k) * SQRT( e_init )
658	ENDDO
659	km(nzb,:,:) = km(nzb+1,:,:)
660	km(nzt+1,:,:) = km(nzt,:,:)
661	kh = km / prandtl_number
662	e = e_init
663	ELSE
664	IF ( .NOT. ocean ) THEN
665	kh = 0.01 ! there must exist an initial diffusion, because
666	km = 0.01 ! otherwise no TKE would be produced by the
667	! production terms, as long as not yet
668	! e = (u/cm)*2 at k=nzb+1
669	ELSE
670	kh = 0.00001
671	km = 0.00001
672	ENDIF
673	e = 0.0
674	ENDIF
675	rif = 0.0
676	ts = 0.0
677	us = 0.0
678	usws = 0.0
679	uswst = top_momentumflux_u
680	vsws = 0.0
681	vswst = top_momentumflux_v
682	IF ( humidity .OR. passive_scalar ) qs = 0.0
683
684	!
685	!-- Compute initial temperature field and other constants used in case
686	!-- of a sloping surface
687	IF ( sloping_surface ) CALL init_slope
688
689	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
690	THEN
691	!
692	!-- Initialization will completely be done by the user
693	CALL user_init_3d_model
694
695	ENDIF
696	!
697	!-- Bottom boundary
698	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
699	u(nzb,:,:) = 0.0
700	v(nzb,:,:) = 0.0
701	ENDIF
702
703	!
704	!-- Apply channel flow boundary condition
705	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
706	u(nzt+1,:,:) = 0.0
707	v(nzt+1,:,:) = 0.0
708	ENDIF
709
710	!
711	!-- Calculate virtual potential temperature
712	IF ( humidity ) vpt = pt * ( 1.0 + 0.61 * q )
713
714	!
715	!-- Store initial profiles for output purposes etc.
716	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
717	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
718	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
719	hom(nzb,1,5,:) = 0.0
720	hom(nzb,1,6,:) = 0.0
721	ENDIF
722	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
723	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
724	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
725
726	IF ( ocean ) THEN
727	!
728	!-- Store initial salinity profile
729	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
730	ENDIF
731
732	IF ( humidity ) THEN
733	!
734	!-- Store initial profile of total water content, virtual potential
735	!-- temperature
736	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
737	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
738	IF ( cloud_physics .OR. cloud_droplets ) THEN
739	!
740	!-- Store initial profile of specific humidity and potential
741	!-- temperature
742	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
743	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
744	ENDIF
745	ENDIF
746
747	IF ( passive_scalar ) THEN
748	!
749	!-- Store initial scalar profile
750	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
751	ENDIF
752
753	!
754	!-- Initialize fluxes at bottom surface
755	IF ( use_surface_fluxes ) THEN
756
757	IF ( constant_heatflux ) THEN
758	!
759	!-- Heat flux is prescribed
760	IF ( random_heatflux ) THEN
761	CALL disturb_heatflux
762	ELSE
763	shf = surface_heatflux
764	!
765	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
766	IF ( TRIM( topography ) /= 'flat' ) THEN
767	DO i = nxlg, nxrg
768	DO j = nysg, nyng
769	IF ( nzb_s_inner(j,i) /= 0 ) THEN
770	shf(j,i) = wall_heatflux(0)
771	ENDIF
772	ENDDO
773	ENDDO
774	ENDIF
775	ENDIF
776	IF ( ASSOCIATED( shf_m ) ) shf_m = shf
777	ENDIF
778
779	!
780	!-- Determine the near-surface water flux
781	IF ( humidity .OR. passive_scalar ) THEN
782	IF ( constant_waterflux ) THEN
783	qsws = surface_waterflux
784	!
785	!-- Over topography surface_waterflux is replaced by
786	!-- wall_humidityflux(0)
787	IF ( TRIM( topography ) /= 'flat' ) THEN
788	wall_qflux = wall_humidityflux
789	DO i = nxlg, nxrg
790	DO j = nysg, nyng
791	IF ( nzb_s_inner(j,i) /= 0 ) THEN
792	qsws(j,i) = wall_qflux(0)
793	ENDIF
794	ENDDO
795	ENDDO
796	ENDIF
797	IF ( ASSOCIATED( qsws_m ) ) qsws_m = qsws
798	ENDIF
799	ENDIF
800
801	ENDIF
802
803	!
804	!-- Initialize fluxes at top surface
805	!-- Currently, only the heatflux and salinity flux can be prescribed.
806	!-- The latent flux is zero in this case!
807	IF ( use_top_fluxes ) THEN
808
809	IF ( constant_top_heatflux ) THEN
810	!
811	!-- Heat flux is prescribed
812	tswst = top_heatflux
813	IF ( ASSOCIATED( tswst_m ) ) tswst_m = tswst
814
815	IF ( humidity .OR. passive_scalar ) THEN
816	qswst = 0.0
817	IF ( ASSOCIATED( qswst_m ) ) qswst_m = qswst
818	ENDIF
819
820	IF ( ocean ) THEN
821	saswsb = bottom_salinityflux
822	saswst = top_salinityflux
823	ENDIF
824	ENDIF
825
826	!
827	!-- Initialization in case of a coupled model run
828	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
829	tswst = 0.0
830	IF ( ASSOCIATED( tswst_m ) ) tswst_m = tswst
831	ENDIF
832
833	ENDIF
834
835	!
836	!-- Initialize Prandtl layer quantities
837	IF ( prandtl_layer ) THEN
838
839	z0 = roughness_length
840
841	IF ( .NOT. constant_heatflux ) THEN
842	!
843	!-- Surface temperature is prescribed. Here the heat flux cannot be
844	!-- simply estimated, because therefore rif, u* and theta* would have
845	!-- to be computed by iteration. This is why the heat flux is assumed
846	!-- to be zero before the first time step. It approaches its correct
847	!-- value in the course of the first few time steps.
848	shf = 0.0
849	IF ( ASSOCIATED( shf_m ) ) shf_m = 0.0
850	ENDIF
851
852	IF ( humidity .OR. passive_scalar ) THEN
853	IF ( .NOT. constant_waterflux ) THEN
854	qsws = 0.0
855	IF ( ASSOCIATED( qsws_m ) ) qsws_m = 0.0
856	ENDIF
857	ENDIF
858
859	ENDIF
860
861
862	!
863	!-- For the moment, vertical velocity is zero
864	w = 0.0
865
866	!
867	!-- Initialize array sums (must be defined in first call of pres)
868	sums = 0.0
869
870	!
871	!-- In case of iterative solvers, p must get an initial value
872	IF ( psolver == 'multigrid' .OR. psolver == 'sor' ) p = 0.0
873
874	!
875	!-- Treating cloud physics, liquid water content and precipitation amount
876	!-- are zero at beginning of the simulation
877	IF ( cloud_physics ) THEN
878	ql = 0.0
879	IF ( precipitation ) precipitation_amount = 0.0
880	ENDIF
881	!
882	!-- Impose vortex with vertical axis on the initial velocity profile
883	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
884	CALL init_rankine
885	ENDIF
886
887	!
888	!-- Impose temperature anomaly (advection test only)
889	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
890	CALL init_pt_anomaly
891	ENDIF
892
893	!
894	!-- If required, change the surface temperature at the start of the 3D run
895	IF ( pt_surface_initial_change /= 0.0 ) THEN
896	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
897	ENDIF
898
899	!
900	!-- If required, change the surface humidity/scalar at the start of the 3D
901	!-- run
902	IF ( ( humidity .OR. passive_scalar ) .AND. &
903	q_surface_initial_change /= 0.0 ) THEN
904	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
905	ENDIF
906
907	!
908	!-- Initialize the random number generator (from numerical recipes)
909	CALL random_function_ini
910
911	!
912	!-- Initialize old and new time levels.
913	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
914	e_m = e; pt_m = pt; u_m = u; v_m = v; w_m = w; kh_m = kh; km_m = km
915	ELSE
916	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
917	ENDIF
918	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
919
920	IF ( humidity .OR. passive_scalar ) THEN
921	IF ( ASSOCIATED( q_m ) ) q_m = q
922	IF ( timestep_scheme(1:5) == 'runge' ) tq_m = 0.0
923	q_p = q
924	IF ( humidity .AND. ASSOCIATED( vpt_m ) ) vpt_m = vpt
925	ENDIF
926
927	IF ( ocean ) THEN
928	tsa_m = 0.0
929	sa_p = sa
930	ENDIF
931
932
933	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
934	TRIM( initializing_actions ) == 'cyclic_fill' ) &
935	THEN
936	!
937	!-- When reading data for cyclic fill of 3D prerun data files, read
938	!-- some of the global variables from the restart file which are required
939	!-- for initializing the inflow
940	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
941
942	DO i = 0, io_blocks-1
943	IF ( i == io_group ) THEN
944	CALL read_parts_of_var_list
945	CALL close_file( 13 )
946	ENDIF
947	#if defined( __parallel )
948	CALL MPI_BARRIER( comm2d, ierr )
949	#endif
950	ENDDO
951
952	ENDIF
953
954	!
955	!-- Read binary data from restart file
956	DO i = 0, io_blocks-1
957	IF ( i == io_group ) THEN
958	CALL read_3d_binary
959	ENDIF
960	#if defined( __parallel )
961	CALL MPI_BARRIER( comm2d, ierr )
962	#endif
963	ENDDO
964
965	!
966	!-- Initialization of the turbulence recycling method
967	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
968	turbulent_inflow ) THEN
969	!
970	!-- First store the profiles to be used at the inflow.
971	!-- These profiles are the (temporally) and horizontally averaged vertical
972	!-- profiles from the prerun. Alternatively, prescribed profiles
973	!-- for u,v-components can be used.
974	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,5) )
975
976	IF ( use_prescribed_profile_data ) THEN
977	mean_inflow_profiles(:,1) = u_init ! u
978	mean_inflow_profiles(:,2) = v_init ! v
979	ELSE
980	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
981	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
982	ENDIF
983	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
984	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
985
986	!
987	!-- If necessary, adjust the horizontal flow field to the prescribed
988	!-- profiles
989	IF ( use_prescribed_profile_data ) THEN
990	DO i = nxlg, nxrg
991	DO j = nysg, nyng
992	DO k = nzb, nzt+1
993	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
994	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
995	ENDDO
996	ENDDO
997	ENDDO
998	ENDIF
999
1000	!
1001	!-- Use these mean profiles at the inflow (provided that Dirichlet
1002	!-- conditions are used)
1003	IF ( inflow_l ) THEN
1004	DO j = nysg, nyng
1005	DO k = nzb, nzt+1
1006	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
1007	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
1008	w(k,j,nxlg:-1) = 0.0
1009	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
1010	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
1011	ENDDO
1012	ENDDO
1013	ENDIF
1014
1015	!
1016	!-- Calculate the damping factors to be used at the inflow. For a
1017	!-- turbulent inflow the turbulent fluctuations have to be limited
1018	!-- vertically because otherwise the turbulent inflow layer will grow
1019	!-- in time.
1020	IF ( inflow_damping_height == 9999999.9 ) THEN
1021	!
1022	!-- Default: use the inversion height calculated by the prerun; if
1023	!-- this is zero, inflow_damping_height must be explicitly
1024	!-- specified.
1025	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0 ) THEN
1026	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
1027	ELSE
1028	WRITE( message_string, * ) 'inflow_damping_height must be ',&
1029	'explicitly specified because&the inversion height ', &
1030	'calculated by the prerun is zero.'
1031	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
1032	ENDIF
1033
1034	ENDIF
1035
1036	IF ( inflow_damping_width == 9999999.9 ) THEN
1037	!
1038	!-- Default for the transition range: one tenth of the undamped
1039	!-- layer
1040	inflow_damping_width = 0.1 * inflow_damping_height
1041
1042	ENDIF
1043
1044	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
1045
1046	DO k = nzb, nzt+1
1047
1048	IF ( zu(k) <= inflow_damping_height ) THEN
1049	inflow_damping_factor(k) = 1.0
1050	ELSEIF ( zu(k) <= inflow_damping_height + &
1051	inflow_damping_width ) THEN
1052	inflow_damping_factor(k) = 1.0 - &
1053	( zu(k) - inflow_damping_height ) / &
1054	inflow_damping_width
1055	ELSE
1056	inflow_damping_factor(k) = 0.0
1057	ENDIF
1058
1059	ENDDO
1060
1061	ENDIF
1062
1063	!
1064	!-- Inside buildings set velocities and TKE back to zero
1065	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1066	topography /= 'flat' ) THEN
1067	!
1068	!-- Inside buildings set velocities and TKE back to zero.
1069	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
1070	!-- maybe revise later.
1071	IF ( timestep_scheme(1:5) == 'runge' ) THEN
1072	DO i = nxlg, nxrg
1073	DO j = nysg, nyng
1074	u (nzb:nzb_u_inner(j,i),j,i) = 0.0
1075	v (nzb:nzb_v_inner(j,i),j,i) = 0.0
1076	w (nzb:nzb_w_inner(j,i),j,i) = 0.0
1077	e (nzb:nzb_w_inner(j,i),j,i) = 0.0
1078	u_m(nzb:nzb_u_inner(j,i),j,i) = 0.0
1079	v_m(nzb:nzb_v_inner(j,i),j,i) = 0.0
1080	w_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1081	e_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1082	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0
1083	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0
1084	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1085	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1086	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1087	ENDDO
1088	ENDDO
1089	ELSE
1090	DO i = nxlg, nxrg
1091	DO j = nysg, nyng
1092	u (nzb:nzb_u_inner(j,i),j,i) = 0.0
1093	v (nzb:nzb_v_inner(j,i),j,i) = 0.0
1094	w (nzb:nzb_w_inner(j,i),j,i) = 0.0
1095	e (nzb:nzb_w_inner(j,i),j,i) = 0.0
1096	u_m(nzb:nzb_u_inner(j,i),j,i) = 0.0
1097	v_m(nzb:nzb_v_inner(j,i),j,i) = 0.0
1098	w_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1099	e_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1100	u_p(nzb:nzb_u_inner(j,i),j,i) = 0.0
1101	v_p(nzb:nzb_v_inner(j,i),j,i) = 0.0
1102	w_p(nzb:nzb_w_inner(j,i),j,i) = 0.0
1103	e_p(nzb:nzb_w_inner(j,i),j,i) = 0.0
1104	ENDDO
1105	ENDDO
1106	ENDIF
1107
1108	ENDIF
1109
1110	!
1111	!-- Calculate initial temperature field and other constants used in case
1112	!-- of a sloping surface
1113	IF ( sloping_surface ) CALL init_slope
1114
1115	!
1116	!-- Initialize new time levels (only done in order to set boundary values
1117	!-- including ghost points)
1118	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1119	IF ( humidity .OR. passive_scalar ) q_p = q
1120	IF ( ocean ) sa_p = sa
1121
1122	!
1123	!-- Allthough tendency arrays are set in prognostic_equations, they have
1124	!-- have to be predefined here because they are used (but multiplied with 0)
1125	!-- there before they are set.
1126	IF ( timestep_scheme(1:5) == 'runge' ) THEN
1127	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
1128	IF ( humidity .OR. passive_scalar ) tq_m = 0.0
1129	IF ( ocean ) tsa_m = 0.0
1130	ENDIF
1131
1132	ELSE
1133	!
1134	!-- Actually this part of the programm should not be reached
1135	message_string = 'unknown initializing problem'
1136	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
1137	ENDIF
1138
1139
1140	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1141	!
1142	!-- Initialize old timelevels needed for radiation boundary conditions
1143	IF ( outflow_l ) THEN
1144	u_m_l(:,:,:) = u(:,:,1:2)
1145	v_m_l(:,:,:) = v(:,:,0:1)
1146	w_m_l(:,:,:) = w(:,:,0:1)
1147	ENDIF
1148	IF ( outflow_r ) THEN
1149	u_m_r(:,:,:) = u(:,:,nx-1:nx)
1150	v_m_r(:,:,:) = v(:,:,nx-1:nx)
1151	w_m_r(:,:,:) = w(:,:,nx-1:nx)
1152	ENDIF
1153	IF ( outflow_s ) THEN
1154	u_m_s(:,:,:) = u(:,0:1,:)
1155	v_m_s(:,:,:) = v(:,1:2,:)
1156	w_m_s(:,:,:) = w(:,0:1,:)
1157	ENDIF
1158	IF ( outflow_n ) THEN
1159	u_m_n(:,:,:) = u(:,ny-1:ny,:)
1160	v_m_n(:,:,:) = v(:,ny-1:ny,:)
1161	w_m_n(:,:,:) = w(:,ny-1:ny,:)
1162	ENDIF
1163
1164	ENDIF
1165
1166	!
1167	!-- Calculate the initial volume flow at the right and north boundary
1168	IF ( conserve_volume_flow ) THEN
1169
1170	IF ( use_prescribed_profile_data ) THEN
1171
1172	volume_flow_initial_l = 0.0
1173	volume_flow_area_l = 0.0
1174
1175	IF ( nxr == nx ) THEN
1176	DO j = nys, nyn
1177	DO k = nzb_2d(j,nx)+1, nzt
1178	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1179	u_init(k) * dzw(k)
1180	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1181	ENDDO
1182	ENDDO
1183	ENDIF
1184
1185	IF ( nyn == ny ) THEN
1186	DO i = nxl, nxr
1187	DO k = nzb_2d(ny,i)+1, nzt
1188	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1189	v_init(k) * dzw(k)
1190	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1191	ENDDO
1192	ENDDO
1193	ENDIF
1194
1195	#if defined( __parallel )
1196	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1197	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1198	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1199	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1200
1201	#else
1202	volume_flow_initial = volume_flow_initial_l
1203	volume_flow_area = volume_flow_area_l
1204	#endif
1205
1206	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1207
1208	volume_flow_initial_l = 0.0
1209	volume_flow_area_l = 0.0
1210
1211	IF ( nxr == nx ) THEN
1212	DO j = nys, nyn
1213	DO k = nzb_2d(j,nx)+1, nzt
1214	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1215	hom_sum(k,1,0) * dzw(k)
1216	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1217	ENDDO
1218	ENDDO
1219	ENDIF
1220
1221	IF ( nyn == ny ) THEN
1222	DO i = nxl, nxr
1223	DO k = nzb_2d(ny,i)+1, nzt
1224	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1225	hom_sum(k,2,0) * dzw(k)
1226	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1227	ENDDO
1228	ENDDO
1229	ENDIF
1230
1231	#if defined( __parallel )
1232	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1233	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1234	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1235	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1236
1237	#else
1238	volume_flow_initial = volume_flow_initial_l
1239	volume_flow_area = volume_flow_area_l
1240	#endif
1241
1242	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1243
1244	volume_flow_initial_l = 0.0
1245	volume_flow_area_l = 0.0
1246
1247	IF ( nxr == nx ) THEN
1248	DO j = nys, nyn
1249	DO k = nzb_2d(j,nx)+1, nzt
1250	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1251	u(k,j,nx) * dzw(k)
1252	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1253	ENDDO
1254	ENDDO
1255	ENDIF
1256
1257	IF ( nyn == ny ) THEN
1258	DO i = nxl, nxr
1259	DO k = nzb_2d(ny,i)+1, nzt
1260	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1261	v(k,ny,i) * dzw(k)
1262	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1263	ENDDO
1264	ENDDO
1265	ENDIF
1266
1267	#if defined( __parallel )
1268	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1269	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1270	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1271	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1272
1273	#else
1274	volume_flow_initial = volume_flow_initial_l
1275	volume_flow_area = volume_flow_area_l
1276	#endif
1277
1278	ENDIF
1279
1280	!
1281	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
1282	!-- from u\|v_bulk instead
1283	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
1284	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
1285	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
1286	ENDIF
1287
1288	ENDIF
1289
1290	!
1291	!-- Initialize quantities for special advections schemes
1292	CALL init_advec
1293
1294	!
1295	!-- Impose random perturbation on the horizontal velocity field and then
1296	!-- remove the divergences from the velocity field at the initial stage
1297	IF ( create_disturbances .AND. &
1298	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1299	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1300
1301	CALL disturb_field( nzb_u_inner, tend, u )
1302	CALL disturb_field( nzb_v_inner, tend, v )
1303	n_sor = nsor_ini
1304	CALL pres
1305	n_sor = nsor
1306	ENDIF
1307
1308	!
1309	!-- Initialization of the leaf area density
1310	IF ( plant_canopy ) THEN
1311
1312	SELECT CASE ( TRIM( canopy_mode ) )
1313
1314	CASE( 'block' )
1315
1316	DO i = nxlg, nxrg
1317	DO j = nysg, nyng
1318	lad_s(:,j,i) = lad(:)
1319	cdc(:,j,i) = drag_coefficient
1320	IF ( passive_scalar ) THEN
1321	sls(:,j,i) = leaf_surface_concentration
1322	sec(:,j,i) = scalar_exchange_coefficient
1323	ENDIF
1324	ENDDO
1325	ENDDO
1326
1327	CASE DEFAULT
1328
1329	!
1330	!-- The DEFAULT case is reached either if the parameter
1331	!-- canopy mode contains a wrong character string or if the
1332	!-- user has coded a special case in the user interface.
1333	!-- There, the subroutine user_init_plant_canopy checks
1334	!-- which of these two conditions applies.
1335	CALL user_init_plant_canopy
1336
1337	END SELECT
1338
1339	CALL exchange_horiz( lad_s, nbgp )
1340	CALL exchange_horiz( cdc, nbgp )
1341
1342	IF ( passive_scalar ) THEN
1343	CALL exchange_horiz( sls, nbgp )
1344	CALL exchange_horiz( sec, nbgp )
1345	ENDIF
1346
1347	!
1348	!-- Sharp boundaries of the plant canopy in horizontal directions
1349	!-- In vertical direction the interpolation is retained, as the leaf
1350	!-- area density is initialised by prescribing a vertical profile
1351	!-- consisting of piecewise linear segments. The upper boundary
1352	!-- of the plant canopy is now defined by lad_w(pch_index,:,:) = 0.0.
1353
1354	DO i = nxl, nxr
1355	DO j = nys, nyn
1356	DO k = nzb, nzt+1
1357	IF ( lad_s(k,j,i) > 0.0 ) THEN
1358	lad_u(k,j,i) = lad_s(k,j,i)
1359	lad_u(k,j,i+1) = lad_s(k,j,i)
1360	lad_v(k,j,i) = lad_s(k,j,i)
1361	lad_v(k,j+1,i) = lad_s(k,j,i)
1362	ENDIF
1363	ENDDO
1364	DO k = nzb, nzt
1365	lad_w(k,j,i) = 0.5 * ( lad_s(k+1,j,i) + lad_s(k,j,i) )
1366	ENDDO
1367	ENDDO
1368	ENDDO
1369
1370	lad_w(pch_index,:,:) = 0.0
1371	lad_w(nzt+1,:,:) = lad_w(nzt,:,:)
1372
1373	CALL exchange_horiz( lad_u, nbgp )
1374	CALL exchange_horiz( lad_v, nbgp )
1375	CALL exchange_horiz( lad_w, nbgp )
1376
1377	!
1378	!-- Initialisation of the canopy heat source distribution
1379	IF ( cthf /= 0.0 ) THEN
1380	!
1381	!-- Piecewise evaluation of the leaf area index by
1382	!-- integration of the leaf area density
1383	lai(:,:,:) = 0.0
1384	DO i = nxlg, nxrg
1385	DO j = nysg, nyng
1386	DO k = pch_index-1, 0, -1
1387	lai(k,j,i) = lai(k+1,j,i) + &
1388	( 0.5 * ( lad_w(k+1,j,i) + &
1389	lad_s(k+1,j,i) ) * &
1390	( zw(k+1) - zu(k+1) ) ) + &
1391	( 0.5 * ( lad_w(k,j,i) + &
1392	lad_s(k+1,j,i) ) * &
1393	( zu(k+1) - zw(k) ) )
1394	ENDDO
1395	ENDDO
1396	ENDDO
1397
1398	!
1399	!-- Evaluation of the upward kinematic vertical heat flux within the
1400	!-- canopy
1401	DO i = nxlg, nxrg
1402	DO j = nysg, nyng
1403	DO k = 0, pch_index
1404	canopy_heat_flux(k,j,i) = cthf * &
1405	exp( -0.6 * lai(k,j,i) )
1406	ENDDO
1407	ENDDO
1408	ENDDO
1409
1410	!
1411	!-- The near surface heat flux is derived from the heat flux
1412	!-- distribution within the canopy
1413	shf(:,:) = canopy_heat_flux(0,:,:)
1414
1415	IF ( ASSOCIATED( shf_m ) ) shf_m = shf
1416
1417	ENDIF
1418
1419	ENDIF
1420
1421	!
1422	!-- If required, initialize dvrp-software
1423	IF ( dt_dvrp /= 9999999.9 ) CALL init_dvrp
1424
1425	IF ( ocean ) THEN
1426	!
1427	!-- Initialize quantities needed for the ocean model
1428	CALL init_ocean
1429
1430	ELSE
1431	!
1432	!-- Initialize quantities for handling cloud physics
1433	!-- This routine must be called before init_particles, because
1434	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
1435	!-- init_particles) is not defined.
1436	CALL init_cloud_physics
1437	ENDIF
1438
1439	!
1440	!-- If required, initialize particles
1441	IF ( particle_advection ) CALL init_particles
1442
1443	!
1444	!-- Initialize the ws-scheme.
1445	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
1446
1447	!
1448	!-- Setting weighting factors for calculation of perturbation pressure
1449	!-- and turbulent quantities from the RK substeps
1450	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
1451
1452	weight_substep(1) = 1./6.
1453	weight_substep(2) = 3./10.
1454	weight_substep(3) = 8./15.
1455
1456	weight_pres(1) = 1./3.
1457	weight_pres(2) = 5./12.
1458	weight_pres(3) = 1./4.
1459
1460	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
1461
1462	weight_substep(1) = 1./2.
1463	weight_substep(2) = 1./2.
1464
1465	weight_pres(1) = 1./2.
1466	weight_pres(2) = 1./2.
1467
1468	ELSE ! for Euler- and leapfrog-method
1469
1470	weight_substep(1) = 1.0
1471	weight_pres(1) = 1.0
1472
1473	ENDIF
1474
1475	!
1476	!-- Initialize Rayleigh damping factors
1477	rdf = 0.0
1478	rdf_sc = 0.0
1479	IF ( rayleigh_damping_factor /= 0.0 ) THEN
1480	IF ( .NOT. ocean ) THEN
1481	DO k = nzb+1, nzt
1482	IF ( zu(k) >= rayleigh_damping_height ) THEN
1483	rdf(k) = rayleigh_damping_factor * &
1484	( SIN( pi * 0.5 * ( zu(k) - rayleigh_damping_height ) &
1485	/ ( zu(nzt) - rayleigh_damping_height ) )&
1486	)**2
1487	ENDIF
1488	ENDDO
1489	ELSE
1490	DO k = nzt, nzb+1, -1
1491	IF ( zu(k) <= rayleigh_damping_height ) THEN
1492	rdf(k) = rayleigh_damping_factor * &
1493	( SIN( pi * 0.5 * ( rayleigh_damping_height - zu(k) ) &
1494	/ ( rayleigh_damping_height - zu(nzb+1)))&
1495	)**2
1496	ENDIF
1497	ENDDO
1498	ENDIF
1499	ENDIF
1500	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
1501
1502	!
1503	!-- Initialize the starting level and the vertical smoothing factor used for
1504	!-- the external pressure gradient
1505	dp_smooth_factor = 1.0
1506	IF ( dp_external ) THEN
1507	!
1508	!-- Set the starting level dp_level_ind_b only if it has not been set before
1509	!-- (e.g. in init_grid).
1510	IF ( dp_level_ind_b == 0 ) THEN
1511	ind_array = MINLOC( ABS( dp_level_b - zu ) )
1512	dp_level_ind_b = ind_array(1) - 1 + nzb
1513	! MINLOC uses lower array bound 1
1514	ENDIF
1515	IF ( dp_smooth ) THEN
1516	dp_smooth_factor(:dp_level_ind_b) = 0.0
1517	DO k = dp_level_ind_b+1, nzt
1518	dp_smooth_factor(k) = 0.5 * ( 1.0 + SIN( pi * &
1519	( REAL( k - dp_level_ind_b ) / &
1520	REAL( nzt - dp_level_ind_b ) - 0.5 ) ) )
1521	ENDDO
1522	ENDIF
1523	ENDIF
1524
1525	!
1526	!-- Initialize diffusivities used within the outflow damping layer in case of
1527	!-- non-cyclic lateral boundaries. A linear increase is assumed over the first
1528	!-- half of the width of the damping layer
1529	IF ( bc_lr_dirrad ) THEN
1530
1531	DO i = nxlg, nxrg
1532	IF ( i >= nx - outflow_damping_width ) THEN
1533	km_damp_x(i) = km_damp_max * MIN( 1.0, &
1534	( i - ( nx - outflow_damping_width ) ) / &
1535	REAL( outflow_damping_width/2 ) &
1536	)
1537	ELSE
1538	km_damp_x(i) = 0.0
1539	ENDIF
1540	ENDDO
1541
1542	ELSEIF ( bc_lr_raddir ) THEN
1543
1544	DO i = nxlg, nxrg
1545	IF ( i <= outflow_damping_width ) THEN
1546	km_damp_x(i) = km_damp_max * MIN( 1.0, &
1547	( outflow_damping_width - i ) / &
1548	REAL( outflow_damping_width/2 ) &
1549	)
1550	ELSE
1551	km_damp_x(i) = 0.0
1552	ENDIF
1553	ENDDO
1554
1555	ENDIF
1556
1557	IF ( bc_ns_dirrad ) THEN
1558
1559	DO j = nysg, nyng
1560	IF ( j >= ny - outflow_damping_width ) THEN
1561	km_damp_y(j) = km_damp_max * MIN( 1.0, &
1562	( j - ( ny - outflow_damping_width ) ) / &
1563	REAL( outflow_damping_width/2 ) &
1564	)
1565	ELSE
1566	km_damp_y(j) = 0.0
1567	ENDIF
1568	ENDDO
1569
1570	ELSEIF ( bc_ns_raddir ) THEN
1571
1572	DO j = nysg, nyng
1573	IF ( j <= outflow_damping_width ) THEN
1574	km_damp_y(j) = km_damp_max * MIN( 1.0, &
1575	( outflow_damping_width - j ) / &
1576	REAL( outflow_damping_width/2 ) &
1577	)
1578	ELSE
1579	km_damp_y(j) = 0.0
1580	ENDIF
1581	ENDDO
1582
1583	ENDIF
1584
1585	!
1586	!-- Initialize local summation arrays for routine flow_statistics.
1587	!-- This is necessary because they may not yet have been initialized when they
1588	!-- are called from flow_statistics (or - depending on the chosen model run -
1589	!-- are never initialized)
1590	sums_divnew_l = 0.0
1591	sums_divold_l = 0.0
1592	sums_l_l = 0.0
1593	sums_up_fraction_l = 0.0
1594	sums_wsts_bc_l = 0.0
1595
1596	!
1597	!-- Pre-set masks for regional statistics. Default is the total model domain.
1598	rmask = 1.0
1599
1600	!
1601	!-- User-defined initializing actions. Check afterwards, if maximum number
1602	!-- of allowed timeseries is exceeded
1603	CALL user_init
1604
1605	IF ( dots_num > dots_max ) THEN
1606	WRITE( message_string, * ) 'number of time series quantities exceeds', &
1607	' its maximum of dots_max = ', dots_max, &
1608	' &Please increase dots_max in modules.f90.'
1609	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
1610	ENDIF
1611
1612	!
1613	!-- Input binary data file is not needed anymore. This line must be placed
1614	!-- after call of user_init!
1615	CALL close_file( 13 )
1616
1617	!
1618	!-- Compute total sum of active mask grid points
1619	!-- ngp_2dh: number of grid points of a horizontal cross section through the
1620	!-- total domain
1621	!-- ngp_3d: number of grid points of the total domain
1622	ngp_2dh_outer_l = 0
1623	ngp_2dh_outer = 0
1624	ngp_2dh_s_inner_l = 0
1625	ngp_2dh_s_inner = 0
1626	ngp_2dh_l = 0
1627	ngp_2dh = 0
1628	ngp_3d_inner_l = 0.0
1629	ngp_3d_inner = 0
1630	ngp_3d = 0
1631	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
1632
1633	DO sr = 0, statistic_regions
1634	DO i = nxl, nxr
1635	DO j = nys, nyn
1636	IF ( rmask(j,i,sr) == 1.0 ) THEN
1637	!
1638	!-- All xy-grid points
1639	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
1640	!
1641	!-- xy-grid points above topography
1642	DO k = nzb_s_outer(j,i), nz + 1
1643	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
1644	ENDDO
1645	DO k = nzb_s_inner(j,i), nz + 1
1646	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
1647	ENDDO
1648	!
1649	!-- All grid points of the total domain above topography
1650	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
1651	( nz - nzb_s_inner(j,i) + 2 )
1652	ENDIF
1653	ENDDO
1654	ENDDO
1655	ENDDO
1656
1657	sr = statistic_regions + 1
1658	#if defined( __parallel )
1659	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1660	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
1661	comm2d, ierr )
1662	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1663	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
1664	MPI_INTEGER, MPI_SUM, comm2d, ierr )
1665	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1666	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
1667	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
1668	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1669	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
1670	MPI_SUM, comm2d, ierr )
1671	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
1672	#else
1673	ngp_2dh = ngp_2dh_l
1674	ngp_2dh_outer = ngp_2dh_outer_l
1675	ngp_2dh_s_inner = ngp_2dh_s_inner_l
1676	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
1677	#endif
1678
1679	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
1680	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
1681
1682	!
1683	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
1684	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
1685	!-- the respective subdomain lie below the surface topography
1686	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
1687	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
1688	ngp_3d_inner(:) )
1689	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
1690
1691	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, ngp_3d_inner_tmp )
1692
1693
1694	END SUBROUTINE init_3d_model

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