Home

Context Navigation

source: palm/trunk/SOURCE/init_3d_model.f90 @ 1026

Last change on this file since 1026 was 1026, checked in by letzel, 12 years ago
last commit documented
Property svn:keywords set to `Id`
File size: 56.8 KB

Line
1	#if defined( __ibmy_special )
2	@PROCESS NOOPTimize
3	#endif
4	SUBROUTINE init_3d_model
5
6	!------------------------------------------------------------------------------!
7	! Current revisions:
8	! ------------------
9	!
10	!
11	! Former revisions:
12	! -----------------
13	! $Id: init_3d_model.f90 1026 2012-10-07 16:07:58Z letzel $
14	!
15	! 1025 2012-10-07 16:04:41Z letzel
16	! bugfix: swap indices of mask for ghost boundaries
17	!
18	! 1015 2012-09-27 09:23:24Z raasch
19	! mask is set to zero for ghost boundaries
20	!
21	! 1010 2012-09-20 07:59:54Z raasch
22	! cpp switch __nopointer added for pointer free version
23	!
24	! 1003 2012-09-14 14:35:53Z raasch
25	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
26	!
27	! 1001 2012-09-13 14:08:46Z raasch
28	! all actions concerning leapfrog scheme removed
29	!
30	! 996 2012-09-07 10:41:47Z raasch
31	! little reformatting
32	!
33	! 978 2012-08-09 08:28:32Z fricke
34	! outflow damping layer removed
35	! roughness length for scalar quantites z0h added
36	! damping zone for the potential temperatur in case of non-cyclic lateral
37	! boundaries added
38	! initialization of ptdf_x, ptdf_y
39	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
40	!
41	! 849 2012-03-15 10:35:09Z raasch
42	! init_particles renamed lpm_init
43	!
44	! 825 2012-02-19 03:03:44Z raasch
45	! wang_collision_kernel renamed wang_kernel
46	!
47	! 790 2011-11-29 03:11:20Z raasch
48	! diss is also allocated in case that the Wang kernel is used
49	!
50	! 787 2011-11-28 12:49:05Z heinze $
51	! bugfix: call init_advec in every case - not only for inital runs
52	!
53	! 785 2011-11-28 09:47:19Z raasch
54	! initialization of rdf_sc
55	!
56	! 767 2011-10-14 06:39:12Z raasch
57	! adjustments concerning implementation of prescribed u,v-profiles
58	! bugfix: dirichlet_0 conditions for ug/vg moved to check_parameters
59	!
60	! 759 2011-09-15 13:58:31Z raasch
61	! Splitting of parallel I/O in blocks of PEs
62	! Bugfix: No zero assignments to volume_flow_initial and volume_flow_area in
63	! case of normal restart runs.
64	!
65	! 713 2011-03-30 14:21:21Z suehring
66	! weight_substep and weight_pres are given as fractions.
67	!
68	! 709 2011-03-30 09:31:40Z raasch
69	! formatting adjustments
70	!
71	! 707 2011-03-29 11:39:40Z raasch
72	! p_sub renamed p_loc and allocated depending on the chosen pressure solver,
73	! initial assignments of zero to array p for iterative solvers only,
74	! bc_lr/ns replaced by bc_lr/ns_dirrad/raddir
75	!
76	! 680 2011-02-04 23:16:06Z gryschka
77	! bugfix: volume_flow_control
78	!
79	! 673 2011-01-18 16:19:48Z suehring
80	! weight_substep (moved from advec_ws) and weight_pres added.
81	! Allocate p_sub when using Multigrid or SOR solver.
82	! Call of ws_init moved behind the if requests.
83	!
84	! 667 2010-12-23 12:06:00Z suehring/gryschka
85	! nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng in loops and
86	! allocation of arrays. Calls of exchange_horiz are modified.
87	! Call ws_init to initialize arrays needed for calculating statisticas and for
88	! optimization when ws-scheme is used.
89	! Initial volume flow is now calculated by using the variable hom_sum.
90	! Therefore the correction of initial volume flow for non-flat topography
91	! removed (removed u_nzb_p1_for_vfc and v_nzb_p1_for_vfc)
92	! Changed surface boundary conditions for u and v in case of ibc_uv_b == 0 from
93	! mirror to Dirichlet boundary conditions (u=v=0), so that k=nzb is
94	! representative for the height z0.
95	! Bugfix: type conversion of '1' to 64bit for the MAX function (ngp_3d_inner)
96	!
97	! 622 2010-12-10 08:08:13Z raasch
98	! optional barriers included in order to speed up collective operations
99	!
100	! 560 2010-09-09 10:06:09Z weinreis
101	! bugfix: correction of calculating ngp_3d for 64 bit
102	!
103	! 485 2010-02-05 10:57:51Z raasch
104	! calculation of ngp_3d + ngp_3d_inner changed because they have now 64 bit
105	!
106	! 407 2009-12-01 15:01:15Z maronga
107	! var_ts is replaced by dots_max
108	! Enabled passive scalar/humidity wall fluxes for non-flat topography
109	!
110	! 388 2009-09-23 09:40:33Z raasch
111	! Initialization of prho added.
112	! bugfix: correction of initial volume flow for non-flat topography
113	! bugfix: zero initialization of arrays within buildings for 'cyclic_fill'
114	! bugfix: avoid that ngp_2dh_s_inner becomes zero
115	! initializing_actions='read_data_for_recycling' renamed to 'cyclic_fill', now
116	! independent of turbulent_inflow
117	! Output of messages replaced by message handling routine.
118	! Set the starting level and the vertical smoothing factor used for
119	! the external pressure gradient
120	! +conserve_volume_flow_mode: 'default', 'initial_profiles', 'inflow_profile'
121	! and 'bulk_velocity'
122	! If the inversion height calculated by the prerun is zero,
123	! inflow_damping_height must be explicitly specified.
124	!
125	! 181 2008-07-30 07:07:47Z raasch
126	! bugfix: zero assignments to tendency arrays in case of restarts,
127	! further extensions and modifications in the initialisation of the plant
128	! canopy model,
129	! allocation of hom_sum moved to parin, initialization of spectrum_x\|y directly
130	! after allocating theses arrays,
131	! read data for recycling added as new initialization option,
132	! dummy allocation for diss
133	!
134	! 138 2007-11-28 10:03:58Z letzel
135	! New counter ngp_2dh_s_inner.
136	! Allow new case bc_uv_t = 'dirichlet_0' for channel flow.
137	! Corrected calculation of initial volume flow for 'set_1d-model_profiles' and
138	! 'set_constant_profiles' in case of buildings in the reference cross-sections.
139	!
140	! 108 2007-08-24 15:10:38Z letzel
141	! Flux initialization in case of coupled runs, +momentum fluxes at top boundary,
142	! +arrays for phase speed c_u, c_v, c_w, indices for u\|v\|w_m_l\|r changed
143	! +qswst_remote in case of atmosphere model with humidity coupled to ocean
144	! Rayleigh damping for ocean, optionally calculate km and kh from initial
145	! TKE e_init
146	!
147	! 97 2007-06-21 08:23:15Z raasch
148	! Initialization of salinity, call of init_ocean
149	!
150	! 87 2007-05-22 15:46:47Z raasch
151	! var_hom and var_sum renamed pr_palm
152	!
153	! 75 2007-03-22 09:54:05Z raasch
154	! Arrays for radiation boundary conditions are allocated (u_m_l, u_m_r, etc.),
155	! bugfix for cases with the outflow damping layer extending over more than one
156	! subdomain, moisture renamed humidity,
157	! new initializing action "by_user" calls user_init_3d_model,
158	! precipitation_amount/rate, ts_value are allocated, +module netcdf_control,
159	! initial velocities at nzb+1 are regarded for volume
160	! flow control in case they have been set zero before (to avoid small timesteps)
161	! -uvmean_outflow, uxrp, vynp eliminated
162	!
163	! 19 2007-02-23 04:53:48Z raasch
164	! +handling of top fluxes
165	!
166	! RCS Log replace by Id keyword, revision history cleaned up
167	!
168	! Revision 1.49 2006/08/22 15:59:07 raasch
169	! No optimization of this file on the ibmy (Yonsei Univ.)
170	!
171	! Revision 1.1 1998/03/09 16:22:22 raasch
172	! Initial revision
173	!
174	!
175	! Description:
176	! ------------
177	! Allocation of arrays and initialization of the 3D model via
178	! a) pre-run the 1D model
179	! or
180	! b) pre-set constant linear profiles
181	! or
182	! c) read values of a previous run
183	!------------------------------------------------------------------------------!
184
185	USE advec_ws
186	USE arrays_3d
187	USE averaging
188	USE cloud_parameters
189	USE constants
190	USE control_parameters
191	USE cpulog
192	USE grid_variables
193	USE indices
194	USE interfaces
195	USE model_1d
196	USE netcdf_control
197	USE particle_attributes
198	USE pegrid
199	USE profil_parameter
200	USE random_function_mod
201	USE statistics
202
203	IMPLICIT NONE
204
205	INTEGER :: i, ind_array(1), j, k, sr
206
207	INTEGER, DIMENSION(:), ALLOCATABLE :: ngp_2dh_l
208
209	INTEGER, DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l, &
210	ngp_2dh_s_inner_l
211
212	REAL :: a, b
213
214	REAL, DIMENSION(1:2) :: volume_flow_area_l, volume_flow_initial_l
215
216	REAL, DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l, ngp_3d_inner_tmp
217
218
219	!
220	!-- Allocate arrays
221	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
222	ngp_3d(0:statistic_regions), &
223	ngp_3d_inner(0:statistic_regions), &
224	ngp_3d_inner_l(0:statistic_regions), &
225	ngp_3d_inner_tmp(0:statistic_regions), &
226	sums_divnew_l(0:statistic_regions), &
227	sums_divold_l(0:statistic_regions) )
228	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
229	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
230	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
231	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
232	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
233	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
234	sums(nzb:nzt+1,pr_palm+max_pr_user), &
235	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
236	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
237	sums_up_fraction_l(10,3,0:statistic_regions), &
238	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
239	ts_value(dots_max,0:statistic_regions) )
240	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
241
242	ALLOCATE( rif(nysg:nyng,nxlg:nxrg), shf(nysg:nyng,nxlg:nxrg), &
243	ts(nysg:nyng,nxlg:nxrg), tswst(nysg:nyng,nxlg:nxrg), &
244	us(nysg:nyng,nxlg:nxrg), usws(nysg:nyng,nxlg:nxrg), &
245	uswst(nysg:nyng,nxlg:nxrg), vsws(nysg:nyng,nxlg:nxrg), &
246	vswst(nysg:nyng,nxlg:nxrg), z0(nysg:nyng,nxlg:nxrg), &
247	z0h(nysg:nyng,nxlg:nxrg) )
248
249	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
250	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
251	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
252	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
253	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
254
255	#if defined( __nopointer )
256	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
257	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
258	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
259	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
260	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
261	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
262	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
263	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
264	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
265	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
266	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
267	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
268	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
269	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
270	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
271	#else
272	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
273	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
274	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
275	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
276	pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
277	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
278	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
279	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
280	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
281	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
282	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
283	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
284	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
285	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
286	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
287	#endif
288
289	!
290	!-- Following array is required for perturbation pressure within the iterative
291	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
292	!-- the weighted average of the substeps and cannot be used in the Poisson
293	!-- solver.
294	IF ( psolver == 'sor' ) THEN
295	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
296	ELSEIF ( psolver == 'multigrid' ) THEN
297	!
298	!-- For performance reasons, multigrid is using one ghost layer only
299	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
300	ENDIF
301
302	IF ( humidity .OR. passive_scalar ) THEN
303	!
304	!-- 2D-humidity/scalar arrays
305	ALLOCATE ( qs(nysg:nyng,nxlg:nxrg), &
306	qsws(nysg:nyng,nxlg:nxrg), &
307	qswst(nysg:nyng,nxlg:nxrg) )
308
309	!
310	!-- 3D-humidity/scalar arrays
311	#if defined( __nopointer )
312	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
313	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
314	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
315	#else
316	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
317	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
318	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
319	#endif
320
321	!
322	!-- 3D-arrays needed for humidity only
323	IF ( humidity ) THEN
324	#if defined( __nopointer )
325	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
326	#else
327	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
328	#endif
329
330	IF ( cloud_physics ) THEN
331	!
332	!-- Liquid water content
333	#if defined( __nopointer )
334	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
335	#else
336	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
337	#endif
338	!
339	!-- Precipitation amount and rate (only needed if output is switched)
340	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
341	precipitation_rate(nysg:nyng,nxlg:nxrg) )
342	ENDIF
343
344	IF ( cloud_droplets ) THEN
345	!
346	!-- Liquid water content, change in liquid water content
347	#if defined( __nopointer )
348	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
349	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
350	#else
351	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
352	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
353	#endif
354	!
355	!-- Real volume of particles (with weighting), volume of particles
356	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
357	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
358	ENDIF
359
360	ENDIF
361
362	ENDIF
363
364	IF ( ocean ) THEN
365	ALLOCATE( saswsb(nysg:nyng,nxlg:nxrg), &
366	saswst(nysg:nyng,nxlg:nxrg) )
367	#if defined( __nopointer )
368	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
369	rho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
370	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
371	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
372	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
373	#else
374	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
375	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
376	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
377	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
378	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
379	prho => prho_1
380	rho => rho_1 ! routines calc_mean_profile and diffusion_e require
381	! density to be apointer
382	#endif
383	IF ( humidity_remote ) THEN
384	ALLOCATE( qswst_remote(nysg:nyng,nxlg:nxrg))
385	qswst_remote = 0.0
386	ENDIF
387	ENDIF
388
389	!
390	!-- 3D-array for storing the dissipation, needed for calculating the sgs
391	!-- particle velocities
392	IF ( use_sgs_for_particles .OR. wang_kernel ) THEN
393	ALLOCATE ( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
394	ELSE
395	ALLOCATE ( diss(2,2,2) ) ! required because diss is used as a
396	! formal parameter
397	ENDIF
398
399	IF ( dt_dosp /= 9999999.9 ) THEN
400	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
401	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
402	spectrum_x = 0.0
403	spectrum_y = 0.0
404	ENDIF
405
406	!
407	!-- 3D-arrays for the leaf area density and the canopy drag coefficient
408	IF ( plant_canopy ) THEN
409	ALLOCATE ( lad_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
410	lad_u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
411	lad_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
412	lad_w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
413	cdc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
414
415	IF ( passive_scalar ) THEN
416	ALLOCATE ( sls(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
417	sec(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
418	ENDIF
419
420	IF ( cthf /= 0.0 ) THEN
421	ALLOCATE ( lai(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
422	canopy_heat_flux(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
423	ENDIF
424
425	ENDIF
426
427	!
428	!-- 4D-array for storing the Rif-values at vertical walls
429	IF ( topography /= 'flat' ) THEN
430	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
431	rif_wall = 0.0
432	ENDIF
433
434	!
435	!-- Arrays to store velocity data from t-dt and the phase speeds which
436	!-- are needed for radiation boundary conditions
437	IF ( outflow_l ) THEN
438	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
439	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
440	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
441	ENDIF
442	IF ( outflow_r ) THEN
443	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
444	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
445	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
446	ENDIF
447	IF ( outflow_l .OR. outflow_r ) THEN
448	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
449	c_w(nzb:nzt+1,nysg:nyng) )
450	ENDIF
451	IF ( outflow_s ) THEN
452	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
453	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
454	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
455	ENDIF
456	IF ( outflow_n ) THEN
457	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
458	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
459	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
460	ENDIF
461	IF ( outflow_s .OR. outflow_n ) THEN
462	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
463	c_w(nzb:nzt+1,nxlg:nxrg) )
464	ENDIF
465	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
466	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
467	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
468	ENDIF
469
470
471	#if ! defined( __nopointer )
472	!
473	!-- Initial assignment of the pointers
474	e => e_1; e_p => e_2; te_m => e_3
475	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
476	u => u_1; u_p => u_2; tu_m => u_3
477	v => v_1; v_p => v_2; tv_m => v_3
478	w => w_1; w_p => w_2; tw_m => w_3
479
480	IF ( humidity .OR. passive_scalar ) THEN
481	q => q_1; q_p => q_2; tq_m => q_3
482	IF ( humidity ) vpt => vpt_1
483	IF ( cloud_physics ) ql => ql_1
484	IF ( cloud_droplets ) THEN
485	ql => ql_1
486	ql_c => ql_2
487	ENDIF
488	ENDIF
489
490	IF ( ocean ) THEN
491	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
492	ENDIF
493	#endif
494
495	!
496	!-- Allocate arrays containing the RK coefficient for calculation of
497	!-- perturbation pressure and turbulent fluxes. At this point values are
498	!-- set for pressure calculation during initialization (where no timestep
499	!-- is done). Further below the values needed within the timestep scheme
500	!-- will be set.
501	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
502	weight_pres(1:intermediate_timestep_count_max) )
503	weight_substep = 1.0
504	weight_pres = 1.0
505	intermediate_timestep_count = 1 ! needed when simulated_time = 0.0
506
507	!
508	!-- Initialize model variables
509	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
510	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
511	!
512	!-- First model run of a possible job queue.
513	!-- Initial profiles of the variables must be computes.
514	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
515	!
516	!-- Use solutions of the 1D model as initial profiles,
517	!-- start 1D model
518	CALL init_1d_model
519	!
520	!-- Transfer initial profiles to the arrays of the 3D model
521	DO i = nxlg, nxrg
522	DO j = nysg, nyng
523	e(:,j,i) = e1d
524	kh(:,j,i) = kh1d
525	km(:,j,i) = km1d
526	pt(:,j,i) = pt_init
527	u(:,j,i) = u1d
528	v(:,j,i) = v1d
529	ENDDO
530	ENDDO
531
532	IF ( humidity .OR. passive_scalar ) THEN
533	DO i = nxlg, nxrg
534	DO j = nysg, nyng
535	q(:,j,i) = q_init
536	ENDDO
537	ENDDO
538	ENDIF
539
540	IF ( .NOT. constant_diffusion ) THEN
541	DO i = nxlg, nxrg
542	DO j = nysg, nyng
543	e(:,j,i) = e1d
544	ENDDO
545	ENDDO
546	!
547	!-- Store initial profiles for output purposes etc.
548	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
549
550	IF ( prandtl_layer ) THEN
551	rif = rif1d(nzb+1)
552	ts = 0.0 ! could actually be computed more accurately in the
553	! 1D model. Update when opportunity arises.
554	us = us1d
555	usws = usws1d
556	vsws = vsws1d
557	ELSE
558	ts = 0.0 ! must be set, because used in
559	rif = 0.0 ! flowste
560	us = 0.0
561	usws = 0.0
562	vsws = 0.0
563	ENDIF
564
565	ELSE
566	e = 0.0 ! must be set, because used in
567	rif = 0.0 ! flowste
568	ts = 0.0
569	us = 0.0
570	usws = 0.0
571	vsws = 0.0
572	ENDIF
573	uswst = top_momentumflux_u
574	vswst = top_momentumflux_v
575
576	!
577	!-- In every case qs = 0.0 (see also pt)
578	!-- This could actually be computed more accurately in the 1D model.
579	!-- Update when opportunity arises!
580	IF ( humidity .OR. passive_scalar ) qs = 0.0
581
582	!
583	!-- inside buildings set velocities back to zero
584	IF ( topography /= 'flat' ) THEN
585	DO i = nxl-1, nxr+1
586	DO j = nys-1, nyn+1
587	u(nzb:nzb_u_inner(j,i),j,i) = 0.0
588	v(nzb:nzb_v_inner(j,i),j,i) = 0.0
589	ENDDO
590	ENDDO
591
592	!
593	!-- WARNING: The extra boundary conditions set after running the
594	!-- ------- 1D model impose an error on the divergence one layer
595	!-- below the topography; need to correct later
596	!-- ATTENTION: Provisional correction for Piacsek & Williams
597	!-- --------- advection scheme: keep u and v zero one layer below
598	!-- the topography.
599	IF ( ibc_uv_b == 1 ) THEN
600	!
601	!-- Neumann condition
602	DO i = nxl-1, nxr+1
603	DO j = nys-1, nyn+1
604	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
605	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
606	ENDDO
607	ENDDO
608
609	ENDIF
610
611	ENDIF
612
613	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
614	THEN
615	!
616	!-- Use constructed initial profiles (velocity constant with height,
617	!-- temperature profile with constant gradient)
618	DO i = nxlg, nxrg
619	DO j = nysg, nyng
620	pt(:,j,i) = pt_init
621	u(:,j,i) = u_init
622	v(:,j,i) = v_init
623	ENDDO
624	ENDDO
625
626	!
627	!-- Set initial horizontal velocities at the lowest computational grid
628	!-- levels to zero in order to avoid too small time steps caused by the
629	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
630	!-- in the limiting formula!). The original values are stored to be later
631	!-- used for volume flow control.
632	DO i = nxlg, nxrg
633	DO j = nysg, nyng
634	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0
635	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0
636	ENDDO
637	ENDDO
638
639	IF ( humidity .OR. passive_scalar ) THEN
640	DO i = nxlg, nxrg
641	DO j = nysg, nyng
642	q(:,j,i) = q_init
643	ENDDO
644	ENDDO
645	ENDIF
646
647	IF ( ocean ) THEN
648	DO i = nxlg, nxrg
649	DO j = nysg, nyng
650	sa(:,j,i) = sa_init
651	ENDDO
652	ENDDO
653	ENDIF
654
655	IF ( constant_diffusion ) THEN
656	km = km_constant
657	kh = km / prandtl_number
658	e = 0.0
659	ELSEIF ( e_init > 0.0 ) THEN
660	DO k = nzb+1, nzt
661	km(k,:,:) = 0.1 * l_grid(k) * SQRT( e_init )
662	ENDDO
663	km(nzb,:,:) = km(nzb+1,:,:)
664	km(nzt+1,:,:) = km(nzt,:,:)
665	kh = km / prandtl_number
666	e = e_init
667	ELSE
668	IF ( .NOT. ocean ) THEN
669	kh = 0.01 ! there must exist an initial diffusion, because
670	km = 0.01 ! otherwise no TKE would be produced by the
671	! production terms, as long as not yet
672	! e = (u/cm)*2 at k=nzb+1
673	ELSE
674	kh = 0.00001
675	km = 0.00001
676	ENDIF
677	e = 0.0
678	ENDIF
679	rif = 0.0
680	ts = 0.0
681	us = 0.0
682	usws = 0.0
683	uswst = top_momentumflux_u
684	vsws = 0.0
685	vswst = top_momentumflux_v
686	IF ( humidity .OR. passive_scalar ) qs = 0.0
687
688	!
689	!-- Compute initial temperature field and other constants used in case
690	!-- of a sloping surface
691	IF ( sloping_surface ) CALL init_slope
692
693	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
694	THEN
695	!
696	!-- Initialization will completely be done by the user
697	CALL user_init_3d_model
698
699	ENDIF
700	!
701	!-- Bottom boundary
702	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
703	u(nzb,:,:) = 0.0
704	v(nzb,:,:) = 0.0
705	ENDIF
706
707	!
708	!-- Apply channel flow boundary condition
709	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
710	u(nzt+1,:,:) = 0.0
711	v(nzt+1,:,:) = 0.0
712	ENDIF
713
714	!
715	!-- Calculate virtual potential temperature
716	IF ( humidity ) vpt = pt * ( 1.0 + 0.61 * q )
717
718	!
719	!-- Store initial profiles for output purposes etc.
720	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
721	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
722	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
723	hom(nzb,1,5,:) = 0.0
724	hom(nzb,1,6,:) = 0.0
725	ENDIF
726	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
727	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
728	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
729
730	IF ( ocean ) THEN
731	!
732	!-- Store initial salinity profile
733	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
734	ENDIF
735
736	IF ( humidity ) THEN
737	!
738	!-- Store initial profile of total water content, virtual potential
739	!-- temperature
740	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
741	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
742	IF ( cloud_physics .OR. cloud_droplets ) THEN
743	!
744	!-- Store initial profile of specific humidity and potential
745	!-- temperature
746	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
747	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
748	ENDIF
749	ENDIF
750
751	IF ( passive_scalar ) THEN
752	!
753	!-- Store initial scalar profile
754	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
755	ENDIF
756
757	!
758	!-- Initialize fluxes at bottom surface
759	IF ( use_surface_fluxes ) THEN
760
761	IF ( constant_heatflux ) THEN
762	!
763	!-- Heat flux is prescribed
764	IF ( random_heatflux ) THEN
765	CALL disturb_heatflux
766	ELSE
767	shf = surface_heatflux
768	!
769	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
770	IF ( TRIM( topography ) /= 'flat' ) THEN
771	DO i = nxlg, nxrg
772	DO j = nysg, nyng
773	IF ( nzb_s_inner(j,i) /= 0 ) THEN
774	shf(j,i) = wall_heatflux(0)
775	ENDIF
776	ENDDO
777	ENDDO
778	ENDIF
779	ENDIF
780	ENDIF
781
782	!
783	!-- Determine the near-surface water flux
784	IF ( humidity .OR. passive_scalar ) THEN
785	IF ( constant_waterflux ) THEN
786	qsws = surface_waterflux
787	!
788	!-- Over topography surface_waterflux is replaced by
789	!-- wall_humidityflux(0)
790	IF ( TRIM( topography ) /= 'flat' ) THEN
791	wall_qflux = wall_humidityflux
792	DO i = nxlg, nxrg
793	DO j = nysg, nyng
794	IF ( nzb_s_inner(j,i) /= 0 ) THEN
795	qsws(j,i) = wall_qflux(0)
796	ENDIF
797	ENDDO
798	ENDDO
799	ENDIF
800	ENDIF
801	ENDIF
802
803	ENDIF
804
805	!
806	!-- Initialize fluxes at top surface
807	!-- Currently, only the heatflux and salinity flux can be prescribed.
808	!-- The latent flux is zero in this case!
809	IF ( use_top_fluxes ) THEN
810
811	IF ( constant_top_heatflux ) THEN
812	!
813	!-- Heat flux is prescribed
814	tswst = top_heatflux
815
816	IF ( humidity .OR. passive_scalar ) qswst = 0.0
817
818	IF ( ocean ) THEN
819	saswsb = bottom_salinityflux
820	saswst = top_salinityflux
821	ENDIF
822	ENDIF
823
824	!
825	!-- Initialization in case of a coupled model run
826	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
827	tswst = 0.0
828	ENDIF
829
830	ENDIF
831
832	!
833	!-- Initialize Prandtl layer quantities
834	IF ( prandtl_layer ) THEN
835
836	z0 = roughness_length
837	z0h = z0h_factor * z0
838
839	IF ( .NOT. constant_heatflux ) THEN
840	!
841	!-- Surface temperature is prescribed. Here the heat flux cannot be
842	!-- simply estimated, because therefore rif, u* and theta* would have
843	!-- to be computed by iteration. This is why the heat flux is assumed
844	!-- to be zero before the first time step. It approaches its correct
845	!-- value in the course of the first few time steps.
846	shf = 0.0
847	ENDIF
848
849	IF ( humidity .OR. passive_scalar ) THEN
850	IF ( .NOT. constant_waterflux ) qsws = 0.0
851	ENDIF
852
853	ENDIF
854
855
856	!
857	!-- For the moment, vertical velocity is zero
858	w = 0.0
859
860	!
861	!-- Initialize array sums (must be defined in first call of pres)
862	sums = 0.0
863
864	!
865	!-- In case of iterative solvers, p must get an initial value
866	IF ( psolver == 'multigrid' .OR. psolver == 'sor' ) p = 0.0
867
868	!
869	!-- Treating cloud physics, liquid water content and precipitation amount
870	!-- are zero at beginning of the simulation
871	IF ( cloud_physics ) THEN
872	ql = 0.0
873	IF ( precipitation ) precipitation_amount = 0.0
874	ENDIF
875	!
876	!-- Impose vortex with vertical axis on the initial velocity profile
877	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
878	CALL init_rankine
879	ENDIF
880
881	!
882	!-- Impose temperature anomaly (advection test only)
883	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
884	CALL init_pt_anomaly
885	ENDIF
886
887	!
888	!-- If required, change the surface temperature at the start of the 3D run
889	IF ( pt_surface_initial_change /= 0.0 ) THEN
890	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
891	ENDIF
892
893	!
894	!-- If required, change the surface humidity/scalar at the start of the 3D
895	!-- run
896	IF ( ( humidity .OR. passive_scalar ) .AND. &
897	q_surface_initial_change /= 0.0 ) THEN
898	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
899	ENDIF
900
901	!
902	!-- Initialize the random number generator (from numerical recipes)
903	CALL random_function_ini
904
905	!
906	!-- Initialize old and new time levels.
907	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
908	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
909
910	IF ( humidity .OR. passive_scalar ) THEN
911	tq_m = 0.0
912	q_p = q
913	ENDIF
914
915	IF ( ocean ) THEN
916	tsa_m = 0.0
917	sa_p = sa
918	ENDIF
919
920
921	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
922	TRIM( initializing_actions ) == 'cyclic_fill' ) &
923	THEN
924	!
925	!-- When reading data for cyclic fill of 3D prerun data files, read
926	!-- some of the global variables from the restart file which are required
927	!-- for initializing the inflow
928	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
929
930	DO i = 0, io_blocks-1
931	IF ( i == io_group ) THEN
932	CALL read_parts_of_var_list
933	CALL close_file( 13 )
934	ENDIF
935	#if defined( __parallel )
936	CALL MPI_BARRIER( comm2d, ierr )
937	#endif
938	ENDDO
939
940	ENDIF
941
942	!
943	!-- Read binary data from restart file
944	DO i = 0, io_blocks-1
945	IF ( i == io_group ) THEN
946	CALL read_3d_binary
947	ENDIF
948	#if defined( __parallel )
949	CALL MPI_BARRIER( comm2d, ierr )
950	#endif
951	ENDDO
952
953	!
954	!-- Initialization of the turbulence recycling method
955	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
956	turbulent_inflow ) THEN
957	!
958	!-- First store the profiles to be used at the inflow.
959	!-- These profiles are the (temporally) and horizontally averaged vertical
960	!-- profiles from the prerun. Alternatively, prescribed profiles
961	!-- for u,v-components can be used.
962	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,5) )
963
964	IF ( use_prescribed_profile_data ) THEN
965	mean_inflow_profiles(:,1) = u_init ! u
966	mean_inflow_profiles(:,2) = v_init ! v
967	ELSE
968	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
969	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
970	ENDIF
971	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
972	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
973
974	!
975	!-- If necessary, adjust the horizontal flow field to the prescribed
976	!-- profiles
977	IF ( use_prescribed_profile_data ) THEN
978	DO i = nxlg, nxrg
979	DO j = nysg, nyng
980	DO k = nzb, nzt+1
981	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
982	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
983	ENDDO
984	ENDDO
985	ENDDO
986	ENDIF
987
988	!
989	!-- Use these mean profiles at the inflow (provided that Dirichlet
990	!-- conditions are used)
991	IF ( inflow_l ) THEN
992	DO j = nysg, nyng
993	DO k = nzb, nzt+1
994	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
995	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
996	w(k,j,nxlg:-1) = 0.0
997	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
998	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
999	ENDDO
1000	ENDDO
1001	ENDIF
1002
1003	!
1004	!-- Calculate the damping factors to be used at the inflow. For a
1005	!-- turbulent inflow the turbulent fluctuations have to be limited
1006	!-- vertically because otherwise the turbulent inflow layer will grow
1007	!-- in time.
1008	IF ( inflow_damping_height == 9999999.9 ) THEN
1009	!
1010	!-- Default: use the inversion height calculated by the prerun; if
1011	!-- this is zero, inflow_damping_height must be explicitly
1012	!-- specified.
1013	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0 ) THEN
1014	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
1015	ELSE
1016	WRITE( message_string, * ) 'inflow_damping_height must be ',&
1017	'explicitly specified because&the inversion height ', &
1018	'calculated by the prerun is zero.'
1019	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
1020	ENDIF
1021
1022	ENDIF
1023
1024	IF ( inflow_damping_width == 9999999.9 ) THEN
1025	!
1026	!-- Default for the transition range: one tenth of the undamped
1027	!-- layer
1028	inflow_damping_width = 0.1 * inflow_damping_height
1029
1030	ENDIF
1031
1032	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
1033
1034	DO k = nzb, nzt+1
1035
1036	IF ( zu(k) <= inflow_damping_height ) THEN
1037	inflow_damping_factor(k) = 1.0
1038	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
1039	inflow_damping_factor(k) = 1.0 - &
1040	( zu(k) - inflow_damping_height ) / &
1041	inflow_damping_width
1042	ELSE
1043	inflow_damping_factor(k) = 0.0
1044	ENDIF
1045
1046	ENDDO
1047
1048	ENDIF
1049
1050	!
1051	!-- Inside buildings set velocities and TKE back to zero
1052	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
1053	topography /= 'flat' ) THEN
1054	!
1055	!-- Inside buildings set velocities and TKE back to zero.
1056	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
1057	!-- maybe revise later.
1058	DO i = nxlg, nxrg
1059	DO j = nysg, nyng
1060	u (nzb:nzb_u_inner(j,i),j,i) = 0.0
1061	v (nzb:nzb_v_inner(j,i),j,i) = 0.0
1062	w (nzb:nzb_w_inner(j,i),j,i) = 0.0
1063	e (nzb:nzb_w_inner(j,i),j,i) = 0.0
1064	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0
1065	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0
1066	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1067	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1068	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
1069	ENDDO
1070	ENDDO
1071
1072	ENDIF
1073
1074	!
1075	!-- Calculate initial temperature field and other constants used in case
1076	!-- of a sloping surface
1077	IF ( sloping_surface ) CALL init_slope
1078
1079	!
1080	!-- Initialize new time levels (only done in order to set boundary values
1081	!-- including ghost points)
1082	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
1083	IF ( humidity .OR. passive_scalar ) q_p = q
1084	IF ( ocean ) sa_p = sa
1085
1086	!
1087	!-- Allthough tendency arrays are set in prognostic_equations, they have
1088	!-- have to be predefined here because they are used (but multiplied with 0)
1089	!-- there before they are set.
1090	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
1091	IF ( humidity .OR. passive_scalar ) tq_m = 0.0
1092	IF ( ocean ) tsa_m = 0.0
1093
1094	ELSE
1095	!
1096	!-- Actually this part of the programm should not be reached
1097	message_string = 'unknown initializing problem'
1098	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
1099	ENDIF
1100
1101
1102	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1103	!
1104	!-- Initialize old timelevels needed for radiation boundary conditions
1105	IF ( outflow_l ) THEN
1106	u_m_l(:,:,:) = u(:,:,1:2)
1107	v_m_l(:,:,:) = v(:,:,0:1)
1108	w_m_l(:,:,:) = w(:,:,0:1)
1109	ENDIF
1110	IF ( outflow_r ) THEN
1111	u_m_r(:,:,:) = u(:,:,nx-1:nx)
1112	v_m_r(:,:,:) = v(:,:,nx-1:nx)
1113	w_m_r(:,:,:) = w(:,:,nx-1:nx)
1114	ENDIF
1115	IF ( outflow_s ) THEN
1116	u_m_s(:,:,:) = u(:,0:1,:)
1117	v_m_s(:,:,:) = v(:,1:2,:)
1118	w_m_s(:,:,:) = w(:,0:1,:)
1119	ENDIF
1120	IF ( outflow_n ) THEN
1121	u_m_n(:,:,:) = u(:,ny-1:ny,:)
1122	v_m_n(:,:,:) = v(:,ny-1:ny,:)
1123	w_m_n(:,:,:) = w(:,ny-1:ny,:)
1124	ENDIF
1125
1126	ENDIF
1127
1128	!
1129	!-- Calculate the initial volume flow at the right and north boundary
1130	IF ( conserve_volume_flow ) THEN
1131
1132	IF ( use_prescribed_profile_data ) THEN
1133
1134	volume_flow_initial_l = 0.0
1135	volume_flow_area_l = 0.0
1136
1137	IF ( nxr == nx ) THEN
1138	DO j = nys, nyn
1139	DO k = nzb_2d(j,nx)+1, nzt
1140	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1141	u_init(k) * dzw(k)
1142	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1143	ENDDO
1144	ENDDO
1145	ENDIF
1146
1147	IF ( nyn == ny ) THEN
1148	DO i = nxl, nxr
1149	DO k = nzb_2d(ny,i)+1, nzt
1150	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1151	v_init(k) * dzw(k)
1152	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1153	ENDDO
1154	ENDDO
1155	ENDIF
1156
1157	#if defined( __parallel )
1158	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1159	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1160	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1161	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1162
1163	#else
1164	volume_flow_initial = volume_flow_initial_l
1165	volume_flow_area = volume_flow_area_l
1166	#endif
1167
1168	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
1169
1170	volume_flow_initial_l = 0.0
1171	volume_flow_area_l = 0.0
1172
1173	IF ( nxr == nx ) THEN
1174	DO j = nys, nyn
1175	DO k = nzb_2d(j,nx)+1, nzt
1176	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1177	hom_sum(k,1,0) * dzw(k)
1178	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1179	ENDDO
1180	ENDDO
1181	ENDIF
1182
1183	IF ( nyn == ny ) THEN
1184	DO i = nxl, nxr
1185	DO k = nzb_2d(ny,i)+1, nzt
1186	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1187	hom_sum(k,2,0) * dzw(k)
1188	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1189	ENDDO
1190	ENDDO
1191	ENDIF
1192
1193	#if defined( __parallel )
1194	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1195	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1196	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1197	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1198
1199	#else
1200	volume_flow_initial = volume_flow_initial_l
1201	volume_flow_area = volume_flow_area_l
1202	#endif
1203
1204	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
1205
1206	volume_flow_initial_l = 0.0
1207	volume_flow_area_l = 0.0
1208
1209	IF ( nxr == nx ) THEN
1210	DO j = nys, nyn
1211	DO k = nzb_2d(j,nx)+1, nzt
1212	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
1213	u(k,j,nx) * dzw(k)
1214	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
1215	ENDDO
1216	ENDDO
1217	ENDIF
1218
1219	IF ( nyn == ny ) THEN
1220	DO i = nxl, nxr
1221	DO k = nzb_2d(ny,i)+1, nzt
1222	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
1223	v(k,ny,i) * dzw(k)
1224	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
1225	ENDDO
1226	ENDDO
1227	ENDIF
1228
1229	#if defined( __parallel )
1230	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
1231	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1232	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
1233	2, MPI_REAL, MPI_SUM, comm2d, ierr )
1234
1235	#else
1236	volume_flow_initial = volume_flow_initial_l
1237	volume_flow_area = volume_flow_area_l
1238	#endif
1239
1240	ENDIF
1241
1242	!
1243	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
1244	!-- from u\|v_bulk instead
1245	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
1246	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
1247	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
1248	ENDIF
1249
1250	ENDIF
1251
1252	!
1253	!-- Initialize quantities for special advections schemes
1254	CALL init_advec
1255
1256	!
1257	!-- Impose random perturbation on the horizontal velocity field and then
1258	!-- remove the divergences from the velocity field at the initial stage
1259	IF ( create_disturbances .AND. &
1260	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
1261	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
1262
1263	CALL disturb_field( nzb_u_inner, tend, u )
1264	CALL disturb_field( nzb_v_inner, tend, v )
1265	n_sor = nsor_ini
1266	CALL pres
1267	n_sor = nsor
1268	ENDIF
1269
1270	!
1271	!-- Initialization of the leaf area density
1272	IF ( plant_canopy ) THEN
1273
1274	SELECT CASE ( TRIM( canopy_mode ) )
1275
1276	CASE( 'block' )
1277
1278	DO i = nxlg, nxrg
1279	DO j = nysg, nyng
1280	lad_s(:,j,i) = lad(:)
1281	cdc(:,j,i) = drag_coefficient
1282	IF ( passive_scalar ) THEN
1283	sls(:,j,i) = leaf_surface_concentration
1284	sec(:,j,i) = scalar_exchange_coefficient
1285	ENDIF
1286	ENDDO
1287	ENDDO
1288
1289	CASE DEFAULT
1290
1291	!
1292	!-- The DEFAULT case is reached either if the parameter
1293	!-- canopy mode contains a wrong character string or if the
1294	!-- user has coded a special case in the user interface.
1295	!-- There, the subroutine user_init_plant_canopy checks
1296	!-- which of these two conditions applies.
1297	CALL user_init_plant_canopy
1298
1299	END SELECT
1300
1301	CALL exchange_horiz( lad_s, nbgp )
1302	CALL exchange_horiz( cdc, nbgp )
1303
1304	IF ( passive_scalar ) THEN
1305	CALL exchange_horiz( sls, nbgp )
1306	CALL exchange_horiz( sec, nbgp )
1307	ENDIF
1308
1309	!
1310	!-- Sharp boundaries of the plant canopy in horizontal directions
1311	!-- In vertical direction the interpolation is retained, as the leaf
1312	!-- area density is initialised by prescribing a vertical profile
1313	!-- consisting of piecewise linear segments. The upper boundary
1314	!-- of the plant canopy is now defined by lad_w(pch_index,:,:) = 0.0.
1315
1316	DO i = nxl, nxr
1317	DO j = nys, nyn
1318	DO k = nzb, nzt+1
1319	IF ( lad_s(k,j,i) > 0.0 ) THEN
1320	lad_u(k,j,i) = lad_s(k,j,i)
1321	lad_u(k,j,i+1) = lad_s(k,j,i)
1322	lad_v(k,j,i) = lad_s(k,j,i)
1323	lad_v(k,j+1,i) = lad_s(k,j,i)
1324	ENDIF
1325	ENDDO
1326	DO k = nzb, nzt
1327	lad_w(k,j,i) = 0.5 * ( lad_s(k+1,j,i) + lad_s(k,j,i) )
1328	ENDDO
1329	ENDDO
1330	ENDDO
1331
1332	lad_w(pch_index,:,:) = 0.0
1333	lad_w(nzt+1,:,:) = lad_w(nzt,:,:)
1334
1335	CALL exchange_horiz( lad_u, nbgp )
1336	CALL exchange_horiz( lad_v, nbgp )
1337	CALL exchange_horiz( lad_w, nbgp )
1338
1339	!
1340	!-- Initialisation of the canopy heat source distribution
1341	IF ( cthf /= 0.0 ) THEN
1342	!
1343	!-- Piecewise evaluation of the leaf area index by
1344	!-- integration of the leaf area density
1345	lai(:,:,:) = 0.0
1346	DO i = nxlg, nxrg
1347	DO j = nysg, nyng
1348	DO k = pch_index-1, 0, -1
1349	lai(k,j,i) = lai(k+1,j,i) + &
1350	( 0.5 * ( lad_w(k+1,j,i) + &
1351	lad_s(k+1,j,i) ) * &
1352	( zw(k+1) - zu(k+1) ) ) + &
1353	( 0.5 * ( lad_w(k,j,i) + &
1354	lad_s(k+1,j,i) ) * &
1355	( zu(k+1) - zw(k) ) )
1356	ENDDO
1357	ENDDO
1358	ENDDO
1359
1360	!
1361	!-- Evaluation of the upward kinematic vertical heat flux within the
1362	!-- canopy
1363	DO i = nxlg, nxrg
1364	DO j = nysg, nyng
1365	DO k = 0, pch_index
1366	canopy_heat_flux(k,j,i) = cthf * &
1367	exp( -0.6 * lai(k,j,i) )
1368	ENDDO
1369	ENDDO
1370	ENDDO
1371
1372	!
1373	!-- The near surface heat flux is derived from the heat flux
1374	!-- distribution within the canopy
1375	shf(:,:) = canopy_heat_flux(0,:,:)
1376
1377	ENDIF
1378
1379	ENDIF
1380
1381	!
1382	!-- If required, initialize dvrp-software
1383	IF ( dt_dvrp /= 9999999.9 ) CALL init_dvrp
1384
1385	IF ( ocean ) THEN
1386	!
1387	!-- Initialize quantities needed for the ocean model
1388	CALL init_ocean
1389
1390	ELSE
1391	!
1392	!-- Initialize quantities for handling cloud physics
1393	!-- This routine must be called before lpm_init, because
1394	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
1395	!-- lpm_init) is not defined.
1396	CALL init_cloud_physics
1397	ENDIF
1398
1399	!
1400	!-- If required, initialize particles
1401	IF ( particle_advection ) CALL lpm_init
1402
1403	!
1404	!-- Initialize the ws-scheme.
1405	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
1406
1407	!
1408	!-- Setting weighting factors for calculation of perturbation pressure
1409	!-- and turbulent quantities from the RK substeps
1410	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
1411
1412	weight_substep(1) = 1./6.
1413	weight_substep(2) = 3./10.
1414	weight_substep(3) = 8./15.
1415
1416	weight_pres(1) = 1./3.
1417	weight_pres(2) = 5./12.
1418	weight_pres(3) = 1./4.
1419
1420	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
1421
1422	weight_substep(1) = 1./2.
1423	weight_substep(2) = 1./2.
1424
1425	weight_pres(1) = 1./2.
1426	weight_pres(2) = 1./2.
1427
1428	ELSE ! for Euler-method
1429
1430	weight_substep(1) = 1.0
1431	weight_pres(1) = 1.0
1432
1433	ENDIF
1434
1435	!
1436	!-- Initialize Rayleigh damping factors
1437	rdf = 0.0
1438	rdf_sc = 0.0
1439	IF ( rayleigh_damping_factor /= 0.0 ) THEN
1440	IF ( .NOT. ocean ) THEN
1441	DO k = nzb+1, nzt
1442	IF ( zu(k) >= rayleigh_damping_height ) THEN
1443	rdf(k) = rayleigh_damping_factor * &
1444	( SIN( pi * 0.5 * ( zu(k) - rayleigh_damping_height ) &
1445	/ ( zu(nzt) - rayleigh_damping_height ) )&
1446	)**2
1447	ENDIF
1448	ENDDO
1449	ELSE
1450	DO k = nzt, nzb+1, -1
1451	IF ( zu(k) <= rayleigh_damping_height ) THEN
1452	rdf(k) = rayleigh_damping_factor * &
1453	( SIN( pi * 0.5 * ( rayleigh_damping_height - zu(k) ) &
1454	/ ( rayleigh_damping_height - zu(nzb+1)))&
1455	)**2
1456	ENDIF
1457	ENDDO
1458	ENDIF
1459	ENDIF
1460	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
1461
1462	!
1463	!-- Initialize the starting level and the vertical smoothing factor used for
1464	!-- the external pressure gradient
1465	dp_smooth_factor = 1.0
1466	IF ( dp_external ) THEN
1467	!
1468	!-- Set the starting level dp_level_ind_b only if it has not been set before
1469	!-- (e.g. in init_grid).
1470	IF ( dp_level_ind_b == 0 ) THEN
1471	ind_array = MINLOC( ABS( dp_level_b - zu ) )
1472	dp_level_ind_b = ind_array(1) - 1 + nzb
1473	! MINLOC uses lower array bound 1
1474	ENDIF
1475	IF ( dp_smooth ) THEN
1476	dp_smooth_factor(:dp_level_ind_b) = 0.0
1477	DO k = dp_level_ind_b+1, nzt
1478	dp_smooth_factor(k) = 0.5 * ( 1.0 + SIN( pi * &
1479	( REAL( k - dp_level_ind_b ) / &
1480	REAL( nzt - dp_level_ind_b ) - 0.5 ) ) )
1481	ENDDO
1482	ENDIF
1483	ENDIF
1484
1485	!
1486	!-- Initialize damping zone for the potential temperature in case of
1487	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
1488	!-- at the inflow boundary and decreases to zero at pt_damping_width.
1489	ptdf_x = 0.0
1490	ptdf_y = 0.0
1491	IF ( bc_lr_dirrad .OR. bc_lr_dirneu ) THEN
1492	DO i = nxl, nxr
1493	IF ( ( i * dx ) < pt_damping_width ) THEN
1494	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5 * &
1495	REAL( pt_damping_width - i * dx ) / ( &
1496	REAL( pt_damping_width ) ) ) )**2
1497	ENDIF
1498	ENDDO
1499	ELSEIF ( bc_lr_raddir .OR. bc_lr_neudir ) THEN
1500	DO i = nxl, nxr
1501	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
1502	ptdf_x(i) = pt_damping_factor * &
1503	SIN( pi * 0.5 * ( ( i - nx ) * dx + pt_damping_width ) / &
1504	REAL( pt_damping_width ) )**2
1505	ENDIF
1506	ENDDO
1507	ELSEIF ( bc_ns_dirrad .OR. bc_ns_dirneu ) THEN
1508	DO j = nys, nyn
1509	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
1510	ptdf_y(j) = pt_damping_factor * &
1511	SIN( pi * 0.5 * ( ( j - ny ) * dy + pt_damping_width ) / &
1512	REAL( pt_damping_width ) )**2
1513	ENDIF
1514	ENDDO
1515	ELSEIF ( bc_ns_raddir .OR. bc_ns_neudir ) THEN
1516	DO j = nys, nyn
1517	IF ( ( j * dy ) < pt_damping_width ) THEN
1518	ptdf_y(j) = pt_damping_factor * &
1519	SIN( pi * 0.5 * ( pt_damping_width - j * dy ) / &
1520	REAL( pt_damping_width ) )**2
1521	ENDIF
1522	ENDDO
1523	ENDIF
1524
1525	!
1526	!-- Initialize local summation arrays for routine flow_statistics.
1527	!-- This is necessary because they may not yet have been initialized when they
1528	!-- are called from flow_statistics (or - depending on the chosen model run -
1529	!-- are never initialized)
1530	sums_divnew_l = 0.0
1531	sums_divold_l = 0.0
1532	sums_l_l = 0.0
1533	sums_up_fraction_l = 0.0
1534	sums_wsts_bc_l = 0.0
1535
1536	!
1537	!-- Pre-set masks for regional statistics. Default is the total model domain.
1538	!-- Ghost points are excluded because counting values at the ghost boundaries
1539	!-- would bias the statistics
1540	rmask = 1.0
1541	rmask(:,nxlg:nxl-1,:) = 0.0; rmask(:,nxr+1:nxrg,:) = 0.0
1542	rmask(nysg:nys-1,:,:) = 0.0; rmask(nyn+1:nyng,:,:) = 0.0
1543
1544	!
1545	!-- User-defined initializing actions. Check afterwards, if maximum number
1546	!-- of allowed timeseries is exceeded
1547	CALL user_init
1548
1549	IF ( dots_num > dots_max ) THEN
1550	WRITE( message_string, * ) 'number of time series quantities exceeds', &
1551	' its maximum of dots_max = ', dots_max, &
1552	' &Please increase dots_max in modules.f90.'
1553	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
1554	ENDIF
1555
1556	!
1557	!-- Input binary data file is not needed anymore. This line must be placed
1558	!-- after call of user_init!
1559	CALL close_file( 13 )
1560
1561	!
1562	!-- Compute total sum of active mask grid points
1563	!-- ngp_2dh: number of grid points of a horizontal cross section through the
1564	!-- total domain
1565	!-- ngp_3d: number of grid points of the total domain
1566	ngp_2dh_outer_l = 0
1567	ngp_2dh_outer = 0
1568	ngp_2dh_s_inner_l = 0
1569	ngp_2dh_s_inner = 0
1570	ngp_2dh_l = 0
1571	ngp_2dh = 0
1572	ngp_3d_inner_l = 0.0
1573	ngp_3d_inner = 0
1574	ngp_3d = 0
1575	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
1576
1577	DO sr = 0, statistic_regions
1578	DO i = nxl, nxr
1579	DO j = nys, nyn
1580	IF ( rmask(j,i,sr) == 1.0 ) THEN
1581	!
1582	!-- All xy-grid points
1583	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
1584	!
1585	!-- xy-grid points above topography
1586	DO k = nzb_s_outer(j,i), nz + 1
1587	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
1588	ENDDO
1589	DO k = nzb_s_inner(j,i), nz + 1
1590	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
1591	ENDDO
1592	!
1593	!-- All grid points of the total domain above topography
1594	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
1595	( nz - nzb_s_inner(j,i) + 2 )
1596	ENDIF
1597	ENDDO
1598	ENDDO
1599	ENDDO
1600
1601	sr = statistic_regions + 1
1602	#if defined( __parallel )
1603	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1604	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
1605	comm2d, ierr )
1606	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1607	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
1608	MPI_INTEGER, MPI_SUM, comm2d, ierr )
1609	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1610	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
1611	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
1612	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
1613	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
1614	MPI_SUM, comm2d, ierr )
1615	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
1616	#else
1617	ngp_2dh = ngp_2dh_l
1618	ngp_2dh_outer = ngp_2dh_outer_l
1619	ngp_2dh_s_inner = ngp_2dh_s_inner_l
1620	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
1621	#endif
1622
1623	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
1624	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
1625
1626	!
1627	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
1628	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
1629	!-- the respective subdomain lie below the surface topography
1630	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
1631	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
1632	ngp_3d_inner(:) )
1633	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
1634
1635	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, ngp_3d_inner_tmp )
1636
1637
1638	END SUBROUTINE init_3d_model

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

Download in other formats:

| Impressum | ©Leibniz Universität Hannover |