Home

Context Navigation

source: palm/trunk/SOURCE/init_3d_model.f90 @ 389

Last change on this file since 389 was 388, checked in by raasch, 15 years ago
in-situ AND potential density are calculated and used in the ocean version
Property svn:keywords set to `Id`
File size: 55.0 KB

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

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

Download in other formats:

| Impressum | ©Leibniz Universität Hannover |