Home

Context Navigation

source: palm/trunk/SOURCE/init_3d_model.f90 @ 332

Last change on this file since 332 was 328, checked in by letzel, 16 years ago
initializing_actions='read_data_for_recycling' renamed to 'cyclic_fill', now independent of turbulent_inflow (check_parameters, header, init_3d_model)
Property svn:keywords set to `Id`
File size: 51.7 KB

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

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

Download in other formats:

| Impressum | ©Leibniz Universität Hannover |