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init_3d_model.f90 @ 134

Last change on this file since 134 was 132, checked in by letzel, 17 years ago

Vertical profiles now based on nzb_s_inner; they are divided by
ngp_2dh_s_inner (scalars, procucts of scalars and velocity components) and
ngp_2dh (staggered velocity components and their products), respectively.

Allow new case bc_uv_t = 'dirichlet_0' for channel flow.

Property svn:keywords set to Id

File size: 39.0 KB

Rev	Line
[1]	1	#if defined( __ibmy_special )
	2	@PROCESS NOOPTimize
	3	#endif
	4	SUBROUTINE init_3d_model
	5
	6	!------------------------------------------------------------------------------!
	7	! Actual revisions:
	8	! -----------------
[132]	9	! New counter ngp_2dh_s_inner.
	10	! Allow new case bc_uv_t = 'dirichlet_0' for channel flow.
	11	! Corrected calculation of initial volume flow for 'set_1d-model_profiles' and
	12	! 'set_constant_profiles' in case of buildings in the reference cross-sections.
[77]	13	!
	14	! Former revisions:
	15	! -----------------
	16	! $Id: init_3d_model.f90 132 2007-11-20 09:46:11Z letzel $
	17	!
[110]	18	! 108 2007-08-24 15:10:38Z letzel
	19	! Flux initialization in case of coupled runs, +momentum fluxes at top boundary,
	20	! +arrays for phase speed c_u, c_v, c_w, indices for u\|v\|w_m_l\|r changed
	21	! +qswst_remote in case of atmosphere model with humidity coupled to ocean
	22	! Rayleigh damping for ocean, optionally calculate km and kh from initial
	23	! TKE e_init
	24	!
[98]	25	! 97 2007-06-21 08:23:15Z raasch
	26	! Initialization of salinity, call of init_ocean
	27	!
[90]	28	! 87 2007-05-22 15:46:47Z raasch
	29	! var_hom and var_sum renamed pr_palm
	30	!
[77]	31	! 75 2007-03-22 09:54:05Z raasch
[73]	32	! Arrays for radiation boundary conditions are allocated (u_m_l, u_m_r, etc.),
	33	! bugfix for cases with the outflow damping layer extending over more than one
[75]	34	! subdomain, moisture renamed humidity,
	35	! new initializing action "by_user" calls user_init_3d_model,
[72]	36	! precipitation_amount/rate, ts_value are allocated, +module netcdf_control,
[51]	37	! initial velocities at nzb+1 are regarded for volume
	38	! flow control in case they have been set zero before (to avoid small timesteps)
[75]	39	! -uvmean_outflow, uxrp, vynp eliminated
[1]	40	!
[39]	41	! 19 2007-02-23 04:53:48Z raasch
	42	! +handling of top fluxes
	43	!
[3]	44	! RCS Log replace by Id keyword, revision history cleaned up
	45	!
[1]	46	! Revision 1.49 2006/08/22 15:59:07 raasch
	47	! No optimization of this file on the ibmy (Yonsei Univ.)
	48	!
	49	! Revision 1.1 1998/03/09 16:22:22 raasch
	50	! Initial revision
	51	!
	52	!
	53	! Description:
	54	! ------------
	55	! Allocation of arrays and initialization of the 3D model via
	56	! a) pre-run the 1D model
	57	! or
	58	! b) pre-set constant linear profiles
	59	! or
	60	! c) read values of a previous run
	61	!------------------------------------------------------------------------------!
	62
	63	USE arrays_3d
	64	USE averaging
[72]	65	USE cloud_parameters
[1]	66	USE constants
	67	USE control_parameters
	68	USE cpulog
	69	USE indices
	70	USE interfaces
	71	USE model_1d
[51]	72	USE netcdf_control
[1]	73	USE particle_attributes
	74	USE pegrid
	75	USE profil_parameter
	76	USE random_function_mod
	77	USE statistics
	78
	79	IMPLICIT NONE
	80
	81	INTEGER :: i, j, k, sr
	82
	83	INTEGER, DIMENSION(:), ALLOCATABLE :: ngp_2dh_l, ngp_3d_inner_l
	84
[132]	85	INTEGER, DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l, &
	86	ngp_2dh_s_inner_l
[1]	87
	88	REAL, DIMENSION(1:2) :: volume_flow_area_l, volume_flow_initial_l
	89
	90
	91	!
	92	!-- Allocate arrays
	93	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
	94	ngp_3d(0:statistic_regions), &
	95	ngp_3d_inner(0:statistic_regions), &
	96	ngp_3d_inner_l(0:statistic_regions), &
	97	sums_divnew_l(0:statistic_regions), &
	98	sums_divold_l(0:statistic_regions) )
[75]	99	ALLOCATE( rdf(nzb+1:nzt) )
[87]	100	ALLOCATE( hom_sum(nzb:nzt+1,pr_palm+max_pr_user,0:statistic_regions), &
[1]	101	ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
	102	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
[132]	103	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
	104	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
[1]	105	rmask(nys-1:nyn+1,nxl-1:nxr+1,0:statistic_regions), &
[87]	106	sums(nzb:nzt+1,pr_palm+max_pr_user), &
	107	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
[1]	108	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
	109	sums_up_fraction_l(10,3,0:statistic_regions), &
[48]	110	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
	111	ts_value(var_ts,0:statistic_regions) )
[1]	112	ALLOCATE( km_damp_x(nxl-1:nxr+1), km_damp_y(nys-1:nyn+1) )
	113
[19]	114	ALLOCATE( rif_1(nys-1:nyn+1,nxl-1:nxr+1), shf_1(nys-1:nyn+1,nxl-1:nxr+1), &
	115	ts(nys-1:nyn+1,nxl-1:nxr+1), tswst_1(nys-1:nyn+1,nxl-1:nxr+1), &
	116	us(nys-1:nyn+1,nxl-1:nxr+1), usws_1(nys-1:nyn+1,nxl-1:nxr+1), &
[102]	117	uswst_1(nys-1:nyn+1,nxl-1:nxr+1), &
	118	vsws_1(nys-1:nyn+1,nxl-1:nxr+1), &
	119	vswst_1(nys-1:nyn+1,nxl-1:nxr+1), z0(nys-1:nyn+1,nxl-1:nxr+1) )
[1]	120
	121	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	122	!
	123	!-- Leapfrog scheme needs two timelevels of diffusion quantities
[19]	124	ALLOCATE( rif_2(nys-1:nyn+1,nxl-1:nxr+1), &
	125	shf_2(nys-1:nyn+1,nxl-1:nxr+1), &
	126	tswst_2(nys-1:nyn+1,nxl-1:nxr+1), &
	127	usws_2(nys-1:nyn+1,nxl-1:nxr+1), &
[102]	128	uswst_2(nys-1:nyn+1,nxl-1:nxr+1), &
	129	vswst_2(nys-1:nyn+1,nxl-1:nxr+1), &
[1]	130	vsws_2(nys-1:nyn+1,nxl-1:nxr+1) )
	131	ENDIF
	132
[75]	133	ALLOCATE( d(nzb+1:nzta,nys:nyna,nxl:nxra), &
	134	e_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	135	e_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	136	e_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	137	kh_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	138	km_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	139	p(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	140	pt_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	141	pt_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	142	pt_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	143	tend(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	144	u_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	145	u_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	146	u_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	147	v_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	148	v_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	149	v_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	150	w_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	151	w_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
[1]	152	w_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	153
	154	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	155	ALLOCATE( kh_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	156	km_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	157	ENDIF
	158
[75]	159	IF ( humidity .OR. passive_scalar ) THEN
[1]	160	!
[75]	161	!-- 2D-humidity/scalar arrays
[1]	162	ALLOCATE ( qs(nys-1:nyn+1,nxl-1:nxr+1), &
[19]	163	qsws_1(nys-1:nyn+1,nxl-1:nxr+1), &
	164	qswst_1(nys-1:nyn+1,nxl-1:nxr+1) )
[1]	165
	166	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
[19]	167	ALLOCATE( qsws_2(nys-1:nyn+1,nxl-1:nxr+1), &
	168	qswst_2(nys-1:nyn+1,nxl-1:nxr+1) )
[1]	169	ENDIF
	170	!
[75]	171	!-- 3D-humidity/scalar arrays
[1]	172	ALLOCATE( q_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	173	q_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	174	q_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	175
	176	!
[75]	177	!-- 3D-arrays needed for humidity only
	178	IF ( humidity ) THEN
[1]	179	ALLOCATE( vpt_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	180
	181	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	182	ALLOCATE( vpt_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	183	ENDIF
	184
	185	IF ( cloud_physics ) THEN
	186	!
	187	!-- Liquid water content
	188	ALLOCATE ( ql_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[72]	189	!
	190	!-- Precipitation amount and rate (only needed if output is switched)
	191	ALLOCATE( precipitation_amount(nys-1:nyn+1,nxl-1:nxr+1), &
	192	precipitation_rate(nys-1:nyn+1,nxl-1:nxr+1) )
[1]	193	ENDIF
	194
	195	IF ( cloud_droplets ) THEN
	196	!
	197	!-- Liquid water content, change in liquid water content,
	198	!-- real volume of particles (with weighting), volume of particles
	199	ALLOCATE ( ql_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	200	ql_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	201	ql_v(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	202	ql_vp(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	203	ENDIF
	204
	205	ENDIF
	206
	207	ENDIF
	208
[94]	209	IF ( ocean ) THEN
[95]	210	ALLOCATE( saswsb_1(nys-1:nyn+1,nxl-1:nxr+1), &
	211	saswst_1(nys-1:nyn+1,nxl-1:nxr+1) )
[96]	212	ALLOCATE( rho_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	213	sa_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	214	sa_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
[94]	215	sa_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[96]	216	rho => rho_1 ! routine calc_mean_profile requires density to be a
	217	! pointer
[108]	218	IF ( humidity_remote ) THEN
	219	ALLOCATE( qswst_remote(nys-1:nyn+1,nxl-1:nxr+1) )
	220	qswst_remote = 0.0
	221	ENDIF
[94]	222	ENDIF
	223
[1]	224	!
	225	!-- 3D-array for storing the dissipation, needed for calculating the sgs
	226	!-- particle velocities
	227	IF ( use_sgs_for_particles ) THEN
	228	ALLOCATE ( diss(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	229	ENDIF
	230
	231	IF ( dt_dosp /= 9999999.9 ) THEN
	232	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
	233	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
	234	ENDIF
	235
	236	!
[51]	237	!-- 4D-array for storing the Rif-values at vertical walls
	238	IF ( topography /= 'flat' ) THEN
	239	ALLOCATE( rif_wall(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1,1:4) )
	240	rif_wall = 0.0
	241	ENDIF
	242
	243	!
	244	!-- Velocities at nzb+1 needed for volume flow control
	245	IF ( conserve_volume_flow ) THEN
	246	ALLOCATE( u_nzb_p1_for_vfc(nys:nyn), v_nzb_p1_for_vfc(nxl:nxr) )
	247	u_nzb_p1_for_vfc = 0.0
	248	v_nzb_p1_for_vfc = 0.0
	249	ENDIF
	250
	251	!
[106]	252	!-- Arrays to store velocity data from t-dt and the phase speeds which
	253	!-- are needed for radiation boundary conditions
[73]	254	IF ( outflow_l ) THEN
[106]	255	ALLOCATE( u_m_l(nzb:nzt+1,nys-1:nyn+1,1:2), &
	256	v_m_l(nzb:nzt+1,nys-1:nyn+1,0:1), &
	257	w_m_l(nzb:nzt+1,nys-1:nyn+1,0:1) )
[73]	258	ENDIF
	259	IF ( outflow_r ) THEN
[106]	260	ALLOCATE( u_m_r(nzb:nzt+1,nys-1:nyn+1,nx-1:nx), &
	261	v_m_r(nzb:nzt+1,nys-1:nyn+1,nx-1:nx), &
	262	w_m_r(nzb:nzt+1,nys-1:nyn+1,nx-1:nx) )
[73]	263	ENDIF
[106]	264	IF ( outflow_l .OR. outflow_r ) THEN
	265	ALLOCATE( c_u(nzb:nzt+1,nys-1:nyn+1), c_v(nzb:nzt+1,nys-1:nyn+1), &
	266	c_w(nzb:nzt+1,nys-1:nyn+1) )
	267	ENDIF
[73]	268	IF ( outflow_s ) THEN
[106]	269	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxl-1:nxr+1), &
	270	v_m_s(nzb:nzt+1,1:2,nxl-1:nxr+1), &
	271	w_m_s(nzb:nzt+1,0:1,nxl-1:nxr+1) )
[73]	272	ENDIF
	273	IF ( outflow_n ) THEN
[106]	274	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxl-1:nxr+1), &
	275	v_m_n(nzb:nzt+1,ny-1:ny,nxl-1:nxr+1), &
	276	w_m_n(nzb:nzt+1,ny-1:ny,nxl-1:nxr+1) )
[73]	277	ENDIF
[106]	278	IF ( outflow_s .OR. outflow_n ) THEN
	279	ALLOCATE( c_u(nzb:nzt+1,nxl-1:nxr+1), c_v(nzb:nzt+1,nxl-1:nxr+1), &
	280	c_w(nzb:nzt+1,nxl-1:nxr+1) )
	281	ENDIF
[73]	282
	283	!
[1]	284	!-- Initial assignment of the pointers
	285	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	286
[19]	287	rif_m => rif_1; rif => rif_2
	288	shf_m => shf_1; shf => shf_2
	289	tswst_m => tswst_1; tswst => tswst_2
	290	usws_m => usws_1; usws => usws_2
[102]	291	uswst_m => uswst_1; uswst => uswst_2
[19]	292	vsws_m => vsws_1; vsws => vsws_2
[102]	293	vswst_m => vswst_1; vswst => vswst_2
[1]	294	e_m => e_1; e => e_2; e_p => e_3; te_m => e_3
	295	kh_m => kh_1; kh => kh_2
	296	km_m => km_1; km => km_2
	297	pt_m => pt_1; pt => pt_2; pt_p => pt_3; tpt_m => pt_3
	298	u_m => u_1; u => u_2; u_p => u_3; tu_m => u_3
	299	v_m => v_1; v => v_2; v_p => v_3; tv_m => v_3
	300	w_m => w_1; w => w_2; w_p => w_3; tw_m => w_3
	301
[75]	302	IF ( humidity .OR. passive_scalar ) THEN
[19]	303	qsws_m => qsws_1; qsws => qsws_2
	304	qswst_m => qswst_1; qswst => qswst_2
[1]	305	q_m => q_1; q => q_2; q_p => q_3; tq_m => q_3
[75]	306	IF ( humidity ) vpt_m => vpt_1; vpt => vpt_2
[1]	307	IF ( cloud_physics ) ql => ql_1
	308	IF ( cloud_droplets ) THEN
	309	ql => ql_1
	310	ql_c => ql_2
	311	ENDIF
	312	ENDIF
	313
	314	ELSE
	315
[19]	316	rif => rif_1
	317	shf => shf_1
	318	tswst => tswst_1
	319	usws => usws_1
[102]	320	uswst => uswst_1
[19]	321	vsws => vsws_1
[102]	322	vswst => vswst_1
[19]	323	e => e_1; e_p => e_2; te_m => e_3; e_m => e_3
	324	kh => kh_1
	325	km => km_1
	326	pt => pt_1; pt_p => pt_2; tpt_m => pt_3; pt_m => pt_3
	327	u => u_1; u_p => u_2; tu_m => u_3; u_m => u_3
	328	v => v_1; v_p => v_2; tv_m => v_3; v_m => v_3
	329	w => w_1; w_p => w_2; tw_m => w_3; w_m => w_3
[1]	330
[75]	331	IF ( humidity .OR. passive_scalar ) THEN
[1]	332	qsws => qsws_1
[19]	333	qswst => qswst_1
[94]	334	q => q_1; q_p => q_2; tq_m => q_3; q_m => q_3
[75]	335	IF ( humidity ) vpt => vpt_1
[1]	336	IF ( cloud_physics ) ql => ql_1
	337	IF ( cloud_droplets ) THEN
	338	ql => ql_1
	339	ql_c => ql_2
	340	ENDIF
	341	ENDIF
	342
[94]	343	IF ( ocean ) THEN
[95]	344	saswsb => saswsb_1
[94]	345	saswst => saswst_1
	346	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
	347	ENDIF
	348
[1]	349	ENDIF
	350
	351	!
	352	!-- Initialize model variables
	353	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	354	!
	355	!-- First model run of a possible job queue.
	356	!-- Initial profiles of the variables must be computes.
	357	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
	358	!
	359	!-- Use solutions of the 1D model as initial profiles,
	360	!-- start 1D model
	361	CALL init_1d_model
	362	!
	363	!-- Transfer initial profiles to the arrays of the 3D model
	364	DO i = nxl-1, nxr+1
	365	DO j = nys-1, nyn+1
	366	e(:,j,i) = e1d
	367	kh(:,j,i) = kh1d
	368	km(:,j,i) = km1d
	369	pt(:,j,i) = pt_init
	370	u(:,j,i) = u1d
	371	v(:,j,i) = v1d
	372	ENDDO
	373	ENDDO
	374
[75]	375	IF ( humidity .OR. passive_scalar ) THEN
[1]	376	DO i = nxl-1, nxr+1
	377	DO j = nys-1, nyn+1
	378	q(:,j,i) = q_init
	379	ENDDO
	380	ENDDO
	381	ENDIF
	382
	383	IF ( .NOT. constant_diffusion ) THEN
	384	DO i = nxl-1, nxr+1
	385	DO j = nys-1, nyn+1
	386	e(:,j,i) = e1d
	387	ENDDO
	388	ENDDO
	389	!
	390	!-- Store initial profiles for output purposes etc.
	391	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	392
	393	IF ( prandtl_layer ) THEN
	394	rif = rif1d(nzb+1)
	395	ts = 0.0 ! could actually be computed more accurately in the
	396	! 1D model. Update when opportunity arises.
	397	us = us1d
	398	usws = usws1d
	399	vsws = vsws1d
	400	ELSE
	401	ts = 0.0 ! must be set, because used in
	402	rif = 0.0 ! flowste
	403	us = 0.0
	404	usws = 0.0
	405	vsws = 0.0
	406	ENDIF
	407
	408	ELSE
	409	e = 0.0 ! must be set, because used in
	410	rif = 0.0 ! flowste
	411	ts = 0.0
	412	us = 0.0
	413	usws = 0.0
	414	vsws = 0.0
	415	ENDIF
[102]	416	uswst = top_momentumflux_u
	417	vswst = top_momentumflux_v
[1]	418
	419	!
	420	!-- In every case qs = 0.0 (see also pt)
	421	!-- This could actually be computed more accurately in the 1D model.
	422	!-- Update when opportunity arises!
[75]	423	IF ( humidity .OR. passive_scalar ) qs = 0.0
[1]	424
	425	!
	426	!-- inside buildings set velocities back to zero
	427	IF ( topography /= 'flat' ) THEN
	428	DO i = nxl-1, nxr+1
	429	DO j = nys-1, nyn+1
	430	u(nzb:nzb_u_inner(j,i),j,i) = 0.0
	431	v(nzb:nzb_v_inner(j,i),j,i) = 0.0
	432	ENDDO
	433	ENDDO
[132]	434	IF ( conserve_volume_flow ) THEN
	435	IF ( nxr == nx ) THEN
	436	DO j = nys, nyn
	437	DO k = nzb + 1, nzb_u_inner(j,nx)
	438	u_nzb_p1_for_vfc(j) = u1d(k) * dzu(k)
	439	ENDDO
	440	ENDDO
	441	ENDIF
	442	IF ( nyn == ny ) THEN
	443	DO i = nxl, nxr
	444	DO k = nzb + 1, nzb_v_inner(ny,i)
	445	v_nzb_p1_for_vfc(i) = v1d(k) * dzu(k)
	446	ENDDO
	447	ENDDO
	448	ENDIF
	449	ENDIF
[1]	450	!
	451	!-- WARNING: The extra boundary conditions set after running the
	452	!-- ------- 1D model impose an error on the divergence one layer
	453	!-- below the topography; need to correct later
	454	!-- ATTENTION: Provisional correction for Piacsek & Williams
	455	!-- --------- advection scheme: keep u and v zero one layer below
	456	!-- the topography.
	457	IF ( ibc_uv_b == 0 ) THEN
	458	!
	459	!-- Satisfying the Dirichlet condition with an extra layer below
	460	!-- the surface where the u and v component change their sign.
	461	DO i = nxl-1, nxr+1
	462	DO j = nys-1, nyn+1
	463	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = -u(1,j,i)
	464	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = -v(1,j,i)
	465	ENDDO
	466	ENDDO
	467
	468	ELSE
	469	!
	470	!-- Neumann condition
	471	DO i = nxl-1, nxr+1
	472	DO j = nys-1, nyn+1
	473	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
	474	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
	475	ENDDO
	476	ENDDO
	477
	478	ENDIF
	479
	480	ENDIF
	481
	482	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
	483	THEN
	484	!
	485	!-- Use constructed initial profiles (velocity constant with height,
	486	!-- temperature profile with constant gradient)
	487	DO i = nxl-1, nxr+1
	488	DO j = nys-1, nyn+1
	489	pt(:,j,i) = pt_init
	490	u(:,j,i) = u_init
	491	v(:,j,i) = v_init
	492	ENDDO
	493	ENDDO
[75]	494
[1]	495	!
[51]	496	!-- Set initial horizontal velocities at the lowest computational grid levels
	497	!-- to zero in order to avoid too small time steps caused by the diffusion
[1]	498	!-- limit in the initial phase of a run (at k=1, dz/2 occurs in the
[51]	499	!-- limiting formula!). The original values are stored to be later used for
	500	!-- volume flow control.
[1]	501	DO i = nxl-1, nxr+1
	502	DO j = nys-1, nyn+1
	503	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0
	504	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0
	505	ENDDO
	506	ENDDO
[51]	507	IF ( conserve_volume_flow ) THEN
	508	IF ( nxr == nx ) THEN
	509	DO j = nys, nyn
[132]	510	DO k = nzb + 1, nzb_u_inner(j,nx) + 1
	511	u_nzb_p1_for_vfc(j) = u_init(k) * dzu(k)
	512	ENDDO
[51]	513	ENDDO
	514	ENDIF
	515	IF ( nyn == ny ) THEN
	516	DO i = nxl, nxr
[132]	517	DO k = nzb + 1, nzb_v_inner(ny,i) + 1
	518	v_nzb_p1_for_vfc(i) = v_init(k) * dzu(k)
	519	ENDDO
[51]	520	ENDDO
	521	ENDIF
	522	ENDIF
[1]	523
[75]	524	IF ( humidity .OR. passive_scalar ) THEN
[1]	525	DO i = nxl-1, nxr+1
	526	DO j = nys-1, nyn+1
	527	q(:,j,i) = q_init
	528	ENDDO
	529	ENDDO
	530	ENDIF
	531
[94]	532	IF ( ocean ) THEN
	533	DO i = nxl-1, nxr+1
	534	DO j = nys-1, nyn+1
	535	sa(:,j,i) = sa_init
	536	ENDDO
	537	ENDDO
	538	ENDIF
[1]	539
	540	IF ( constant_diffusion ) THEN
	541	km = km_constant
	542	kh = km / prandtl_number
[108]	543	e = 0.0
	544	ELSEIF ( e_init > 0.0 ) THEN
	545	DO k = nzb+1, nzt
	546	km(k,:,:) = 0.1 * l_grid(k) * SQRT( e_init )
	547	ENDDO
	548	km(nzb,:,:) = km(nzb+1,:,:)
	549	km(nzt+1,:,:) = km(nzt,:,:)
	550	kh = km / prandtl_number
	551	e = e_init
[1]	552	ELSE
[108]	553	IF ( .NOT. ocean ) THEN
	554	kh = 0.01 ! there must exist an initial diffusion, because
	555	km = 0.01 ! otherwise no TKE would be produced by the
	556	! production terms, as long as not yet
	557	! e = (u/cm)*2 at k=nzb+1
	558	ELSE
	559	kh = 0.00001
	560	km = 0.00001
	561	ENDIF
	562	e = 0.0
[1]	563	ENDIF
[102]	564	rif = 0.0
	565	ts = 0.0
	566	us = 0.0
	567	usws = 0.0
	568	uswst = top_momentumflux_u
	569	vsws = 0.0
	570	vswst = top_momentumflux_v
[75]	571	IF ( humidity .OR. passive_scalar ) qs = 0.0
[1]	572
	573	!
	574	!-- Compute initial temperature field and other constants used in case
	575	!-- of a sloping surface
	576	IF ( sloping_surface ) CALL init_slope
	577
[46]	578	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
	579	THEN
	580	!
	581	!-- Initialization will completely be done by the user
	582	CALL user_init_3d_model
	583
[1]	584	ENDIF
	585
	586	!
[132]	587	!-- apply channel flow boundary condition
	588	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
	589
	590	u(nzt+1,:,:) = 0.0
	591	v(nzt+1,:,:) = 0.0
	592
	593	!-- for the Dirichlet condition to be correctly applied at the top, set
	594	!-- ug and vg to zero there
	595	ug(nzt+1) = 0.0
	596	vg(nzt+1) = 0.0
	597
	598	ENDIF
	599
	600	!
[1]	601	!-- Calculate virtual potential temperature
[75]	602	IF ( humidity ) vpt = pt * ( 1.0 + 0.61 * q )
[1]	603
	604	!
	605	!-- Store initial profiles for output purposes etc.
	606	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	607	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
	608	IF ( ibc_uv_b == 0 ) THEN
	609	hom(nzb,1,5,:) = -hom(nzb+1,1,5,:) ! due to satisfying the Dirichlet
	610	hom(nzb,1,6,:) = -hom(nzb+1,1,6,:) ! condition with an extra layer
	611	! below the surface where the u and v component change their sign
	612	ENDIF
	613	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	614	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
	615	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
	616
[97]	617	IF ( ocean ) THEN
	618	!
	619	!-- Store initial salinity profile
	620	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
	621	ENDIF
[1]	622
[75]	623	IF ( humidity ) THEN
[1]	624	!
	625	!-- Store initial profile of total water content, virtual potential
	626	!-- temperature
	627	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	628	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
	629	IF ( cloud_physics .OR. cloud_droplets ) THEN
	630	!
	631	!-- Store initial profile of specific humidity and potential
	632	!-- temperature
	633	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	634	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	635	ENDIF
	636	ENDIF
	637
	638	IF ( passive_scalar ) THEN
	639	!
	640	!-- Store initial scalar profile
	641	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	642	ENDIF
	643
	644	!
[19]	645	!-- Initialize fluxes at bottom surface
[1]	646	IF ( use_surface_fluxes ) THEN
	647
	648	IF ( constant_heatflux ) THEN
	649	!
	650	!-- Heat flux is prescribed
	651	IF ( random_heatflux ) THEN
	652	CALL disturb_heatflux
	653	ELSE
	654	shf = surface_heatflux
	655	!
	656	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
	657	IF ( TRIM( topography ) /= 'flat' ) THEN
	658	DO i = nxl-1, nxr+1
	659	DO j = nys-1, nyn+1
	660	IF ( nzb_s_inner(j,i) /= 0 ) THEN
	661	shf(j,i) = wall_heatflux(0)
	662	ENDIF
	663	ENDDO
	664	ENDDO
	665	ENDIF
	666	ENDIF
	667	IF ( ASSOCIATED( shf_m ) ) shf_m = shf
	668	ENDIF
	669
	670	!
	671	!-- Determine the near-surface water flux
[75]	672	IF ( humidity .OR. passive_scalar ) THEN
[1]	673	IF ( constant_waterflux ) THEN
	674	qsws = surface_waterflux
	675	IF ( ASSOCIATED( qsws_m ) ) qsws_m = qsws
	676	ENDIF
	677	ENDIF
	678
	679	ENDIF
	680
	681	!
[19]	682	!-- Initialize fluxes at top surface
[94]	683	!-- Currently, only the heatflux and salinity flux can be prescribed.
	684	!-- The latent flux is zero in this case!
[19]	685	IF ( use_top_fluxes ) THEN
	686
	687	IF ( constant_top_heatflux ) THEN
	688	!
	689	!-- Heat flux is prescribed
	690	tswst = top_heatflux
	691	IF ( ASSOCIATED( tswst_m ) ) tswst_m = tswst
	692
[75]	693	IF ( humidity .OR. passive_scalar ) THEN
[19]	694	qswst = 0.0
	695	IF ( ASSOCIATED( qswst_m ) ) qswst_m = qswst
	696	ENDIF
[94]	697
	698	IF ( ocean ) THEN
[95]	699	saswsb = bottom_salinityflux
[94]	700	saswst = top_salinityflux
	701	ENDIF
[102]	702	ENDIF
[19]	703
[102]	704	!
	705	!-- Initialization in case of a coupled model run
	706	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
	707	tswst = 0.0
	708	IF ( ASSOCIATED( tswst_m ) ) tswst_m = tswst
	709	ENDIF
	710
[19]	711	ENDIF
	712
	713	!
[1]	714	!-- Initialize Prandtl layer quantities
	715	IF ( prandtl_layer ) THEN
	716
	717	z0 = roughness_length
	718
	719	IF ( .NOT. constant_heatflux ) THEN
	720	!
	721	!-- Surface temperature is prescribed. Here the heat flux cannot be
	722	!-- simply estimated, because therefore rif, u* and theta* would have
	723	!-- to be computed by iteration. This is why the heat flux is assumed
	724	!-- to be zero before the first time step. It approaches its correct
	725	!-- value in the course of the first few time steps.
	726	shf = 0.0
	727	IF ( ASSOCIATED( shf_m ) ) shf_m = 0.0
	728	ENDIF
	729
[75]	730	IF ( humidity .OR. passive_scalar ) THEN
[1]	731	IF ( .NOT. constant_waterflux ) THEN
	732	qsws = 0.0
	733	IF ( ASSOCIATED( qsws_m ) ) qsws_m = 0.0
	734	ENDIF
	735	ENDIF
	736
	737	ENDIF
	738
	739	!
	740	!-- Calculate the initial volume flow at the right and north boundary
	741	IF ( conserve_volume_flow ) THEN
	742
	743	volume_flow_initial_l = 0.0
	744	volume_flow_area_l = 0.0
	745
	746	IF ( nxr == nx ) THEN
	747	DO j = nys, nyn
	748	DO k = nzb_2d(j,nx) + 1, nzt
	749	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	750	u(k,j,nx) * dzu(k)
	751	volume_flow_area_l(1) = volume_flow_area_l(1) + dzu(k)
	752	ENDDO
[51]	753	!
	754	!-- Correction if velocity at nzb+1 has been set zero further above
	755	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	756	u_nzb_p1_for_vfc(j)
[1]	757	ENDDO
	758	ENDIF
	759
	760	IF ( nyn == ny ) THEN
	761	DO i = nxl, nxr
	762	DO k = nzb_2d(ny,i) + 1, nzt
	763	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	764	v(k,ny,i) * dzu(k)
	765	volume_flow_area_l(2) = volume_flow_area_l(2) + dzu(k)
	766	ENDDO
[51]	767	!
	768	!-- Correction if velocity at nzb+1 has been set zero further above
	769	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	770	v_nzb_p1_for_vfc(i)
[1]	771	ENDDO
	772	ENDIF
	773
	774	#if defined( __parallel )
	775	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	776	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	777	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	778	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	779	#else
	780	volume_flow_initial = volume_flow_initial_l
	781	volume_flow_area = volume_flow_area_l
	782	#endif
	783	ENDIF
	784
	785	!
	786	!-- For the moment, perturbation pressure and vertical velocity are zero
	787	p = 0.0; w = 0.0
	788
	789	!
	790	!-- Initialize array sums (must be defined in first call of pres)
	791	sums = 0.0
	792
	793	!
[72]	794	!-- Treating cloud physics, liquid water content and precipitation amount
	795	!-- are zero at beginning of the simulation
	796	IF ( cloud_physics ) THEN
	797	ql = 0.0
	798	IF ( precipitation ) precipitation_amount = 0.0
	799	ENDIF
[1]	800
	801	!
	802	!-- Initialize spectra
	803	IF ( dt_dosp /= 9999999.9 ) THEN
	804	spectrum_x = 0.0
	805	spectrum_y = 0.0
	806	ENDIF
	807
	808	!
	809	!-- Impose vortex with vertical axis on the initial velocity profile
	810	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	811	CALL init_rankine
	812	ENDIF
	813
	814	!
	815	!-- Impose temperature anomaly (advection test only)
	816	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
	817	CALL init_pt_anomaly
	818	ENDIF
	819
	820	!
	821	!-- If required, change the surface temperature at the start of the 3D run
	822	IF ( pt_surface_initial_change /= 0.0 ) THEN
	823	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	824	ENDIF
	825
	826	!
	827	!-- If required, change the surface humidity/scalar at the start of the 3D
	828	!-- run
[75]	829	IF ( ( humidity .OR. passive_scalar ) .AND. &
[1]	830	q_surface_initial_change /= 0.0 ) THEN
	831	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
	832	ENDIF
	833
	834	!
	835	!-- Initialize the random number generator (from numerical recipes)
	836	CALL random_function_ini
	837
	838	!
	839	!-- Impose random perturbation on the horizontal velocity field and then
	840	!-- remove the divergences from the velocity field
	841	IF ( create_disturbances ) THEN
[75]	842	CALL disturb_field( nzb_u_inner, tend, u )
	843	CALL disturb_field( nzb_v_inner, tend, v )
[1]	844	n_sor = nsor_ini
	845	CALL pres
	846	n_sor = nsor
	847	ENDIF
	848
	849	!
	850	!-- Once again set the perturbation pressure explicitly to zero in order to
	851	!-- assure that it does not generate any divergences in the first time step.
	852	!-- At t=0 the velocity field is free of divergence (as constructed above).
	853	!-- Divergences being created during a time step are not yet known and thus
	854	!-- cannot be corrected during the time step yet.
	855	p = 0.0
	856
	857	!
	858	!-- Initialize old and new time levels.
	859	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	860	e_m = e; pt_m = pt; u_m = u; v_m = v; w_m = w; kh_m = kh; km_m = km
	861	ELSE
	862	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
	863	ENDIF
	864	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
	865
[75]	866	IF ( humidity .OR. passive_scalar ) THEN
[1]	867	IF ( ASSOCIATED( q_m ) ) q_m = q
	868	IF ( timestep_scheme(1:5) == 'runge' ) tq_m = 0.0
	869	q_p = q
[75]	870	IF ( humidity .AND. ASSOCIATED( vpt_m ) ) vpt_m = vpt
[1]	871	ENDIF
	872
[94]	873	IF ( ocean ) THEN
	874	tsa_m = 0.0
	875	sa_p = sa
	876	ENDIF
	877
[73]	878	!
	879	!-- Initialize old timelevels needed for radiation boundary conditions
	880	IF ( outflow_l ) THEN
[106]	881	u_m_l(:,:,:) = u(:,:,1:2)
	882	v_m_l(:,:,:) = v(:,:,0:1)
	883	w_m_l(:,:,:) = w(:,:,0:1)
[73]	884	ENDIF
	885	IF ( outflow_r ) THEN
[106]	886	u_m_r(:,:,:) = u(:,:,nx-1:nx)
	887	v_m_r(:,:,:) = v(:,:,nx-1:nx)
	888	w_m_r(:,:,:) = w(:,:,nx-1:nx)
[73]	889	ENDIF
	890	IF ( outflow_s ) THEN
[106]	891	u_m_s(:,:,:) = u(:,0:1,:)
	892	v_m_s(:,:,:) = v(:,1:2,:)
	893	w_m_s(:,:,:) = w(:,0:1,:)
[73]	894	ENDIF
	895	IF ( outflow_n ) THEN
[106]	896	u_m_n(:,:,:) = u(:,ny-1:ny,:)
	897	v_m_n(:,:,:) = v(:,ny-1:ny,:)
	898	w_m_n(:,:,:) = w(:,ny-1:ny,:)
[73]	899	ENDIF
	900
[1]	901	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' ) &
	902	THEN
	903	!
	904	!-- Read binary data from restart file
	905	CALL read_3d_binary
	906
	907	!
	908	!-- Calculate initial temperature field and other constants used in case
	909	!-- of a sloping surface
	910	IF ( sloping_surface ) CALL init_slope
	911
	912	!
	913	!-- Initialize new time levels (only done in order to set boundary values
	914	!-- including ghost points)
	915	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
[75]	916	IF ( humidity .OR. passive_scalar ) q_p = q
[94]	917	IF ( ocean ) sa_p = sa
[1]	918
	919	ELSE
	920	!
	921	!-- Actually this part of the programm should not be reached
	922	IF ( myid == 0 ) PRINT*,'+++ init_3d_model: unknown initializing ', &
	923	'problem'
	924	CALL local_stop
	925	ENDIF
	926
	927	!
	928	!-- If required, initialize dvrp-software
	929	IF ( dt_dvrp /= 9999999.9 ) CALL init_dvrp
	930
[96]	931	IF ( ocean ) THEN
[1]	932	!
[96]	933	!-- Initialize quantities needed for the ocean model
	934	CALL init_ocean
	935	ELSE
	936	!
	937	!-- Initialize quantities for handling cloud physics
	938	!-- This routine must be called before init_particles, because
	939	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
	940	!-- init_particles) is not defined.
	941	CALL init_cloud_physics
	942	ENDIF
[1]	943
	944	!
	945	!-- If required, initialize particles
[63]	946	IF ( particle_advection ) CALL init_particles
[1]	947
	948	!
	949	!-- Initialize quantities for special advections schemes
	950	CALL init_advec
	951
	952	!
	953	!-- Initialize Rayleigh damping factors
	954	rdf = 0.0
	955	IF ( rayleigh_damping_factor /= 0.0 ) THEN
[108]	956	IF ( .NOT. ocean ) THEN
	957	DO k = nzb+1, nzt
	958	IF ( zu(k) >= rayleigh_damping_height ) THEN
	959	rdf(k) = rayleigh_damping_factor * &
[1]	960	( SIN( pi * 0.5 * ( zu(k) - rayleigh_damping_height ) &
	961	/ ( zu(nzt) - rayleigh_damping_height ) )&
	962	)**2
[108]	963	ENDIF
	964	ENDDO
	965	ELSE
	966	DO k = nzt, nzb+1, -1
	967	IF ( zu(k) <= rayleigh_damping_height ) THEN
	968	rdf(k) = rayleigh_damping_factor * &
	969	( SIN( pi * 0.5 * ( rayleigh_damping_height - zu(k) ) &
	970	/ ( rayleigh_damping_height - zu(nzb+1)))&
	971	)**2
	972	ENDIF
	973	ENDDO
	974	ENDIF
[1]	975	ENDIF
	976
	977	!
	978	!-- Initialize diffusivities used within the outflow damping layer in case of
	979	!-- non-cyclic lateral boundaries. A linear increase is assumed over the first
	980	!-- half of the width of the damping layer
[73]	981	IF ( bc_lr == 'dirichlet/radiation' ) THEN
[1]	982
	983	DO i = nxl-1, nxr+1
[73]	984	IF ( i >= nx - outflow_damping_width ) THEN
	985	km_damp_x(i) = km_damp_max * MIN( 1.0, &
	986	( i - ( nx - outflow_damping_width ) ) / &
	987	REAL( outflow_damping_width/2 ) &
	988	)
	989	ELSE
	990	km_damp_x(i) = 0.0
	991	ENDIF
	992	ENDDO
[1]	993
[73]	994	ELSEIF ( bc_lr == 'radiation/dirichlet' ) THEN
[1]	995
[73]	996	DO i = nxl-1, nxr+1
	997	IF ( i <= outflow_damping_width ) THEN
	998	km_damp_x(i) = km_damp_max * MIN( 1.0, &
	999	( outflow_damping_width - i ) / &
	1000	REAL( outflow_damping_width/2 ) &
	1001	)
	1002	ELSE
	1003	km_damp_x(i) = 0.0
	1004	ENDIF
	1005	ENDDO
[1]	1006
[73]	1007	ENDIF
[1]	1008
[73]	1009	IF ( bc_ns == 'dirichlet/radiation' ) THEN
[1]	1010
[73]	1011	DO j = nys-1, nyn+1
	1012	IF ( j >= ny - outflow_damping_width ) THEN
	1013	km_damp_y(j) = km_damp_max * MIN( 1.0, &
	1014	( j - ( ny - outflow_damping_width ) ) / &
	1015	REAL( outflow_damping_width/2 ) &
	1016	)
	1017	ELSE
	1018	km_damp_y(j) = 0.0
[1]	1019	ENDIF
	1020	ENDDO
	1021
[73]	1022	ELSEIF ( bc_ns == 'radiation/dirichlet' ) THEN
[1]	1023
	1024	DO j = nys-1, nyn+1
[73]	1025	IF ( j <= outflow_damping_width ) THEN
	1026	km_damp_y(j) = km_damp_max * MIN( 1.0, &
	1027	( outflow_damping_width - j ) / &
	1028	REAL( outflow_damping_width/2 ) &
	1029	)
	1030	ELSE
	1031	km_damp_y(j) = 0.0
[1]	1032	ENDIF
[73]	1033	ENDDO
[1]	1034
	1035	ENDIF
	1036
	1037	!
	1038	!-- Initialize local summation arrays for UP flow_statistics. This is necessary
	1039	!-- because they may not yet have been initialized when they are called from
	1040	!-- flow_statistics (or - depending on the chosen model run - are never
	1041	!-- initialized)
	1042	sums_divnew_l = 0.0
	1043	sums_divold_l = 0.0
	1044	sums_l_l = 0.0
	1045	sums_up_fraction_l = 0.0
	1046	sums_wsts_bc_l = 0.0
	1047
	1048	!
	1049	!-- Pre-set masks for regional statistics. Default is the total model domain.
	1050	rmask = 1.0
	1051
	1052	!
[51]	1053	!-- User-defined initializing actions. Check afterwards, if maximum number
	1054	!-- of allowed timeseries is not exceeded
[1]	1055	CALL user_init
	1056
[51]	1057	IF ( dots_num > dots_max ) THEN
	1058	IF ( myid == 0 ) THEN
	1059	PRINT*, '+++ user_init: number of time series quantities exceeds', &
	1060	' its maximum of dots_max = ', dots_max
	1061	PRINT*, ' Please increase dots_max in modules.f90.'
	1062	ENDIF
	1063	CALL local_stop
	1064	ENDIF
	1065
[1]	1066	!
	1067	!-- Input binary data file is not needed anymore. This line must be placed
	1068	!-- after call of user_init!
	1069	CALL close_file( 13 )
	1070
	1071	!
	1072	!-- Compute total sum of active mask grid points
	1073	!-- ngp_2dh: number of grid points of a horizontal cross section through the
	1074	!-- total domain
	1075	!-- ngp_3d: number of grid points of the total domain
[132]	1076	ngp_2dh_outer_l = 0
	1077	ngp_2dh_outer = 0
	1078	ngp_2dh_s_inner_l = 0
	1079	ngp_2dh_s_inner = 0
	1080	ngp_2dh_l = 0
	1081	ngp_2dh = 0
	1082	ngp_3d_inner_l = 0
	1083	ngp_3d_inner = 0
	1084	ngp_3d = 0
	1085	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
[1]	1086
	1087	DO sr = 0, statistic_regions
	1088	DO i = nxl, nxr
	1089	DO j = nys, nyn
	1090	IF ( rmask(j,i,sr) == 1.0 ) THEN
	1091	!
	1092	!-- All xy-grid points
	1093	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1094	!
	1095	!-- xy-grid points above topography
	1096	DO k = nzb_s_outer(j,i), nz + 1
	1097	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
	1098	ENDDO
[132]	1099	DO k = nzb_s_inner(j,i), nz + 1
	1100	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
	1101	ENDDO
[1]	1102	!
	1103	!-- All grid points of the total domain above topography
	1104	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
	1105	( nz - nzb_s_inner(j,i) + 2 )
	1106	ENDIF
	1107	ENDDO
	1108	ENDDO
	1109	ENDDO
	1110
	1111	sr = statistic_regions + 1
	1112	#if defined( __parallel )
	1113	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
	1114	comm2d, ierr )
	1115	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
	1116	MPI_INTEGER, MPI_SUM, comm2d, ierr )
[132]	1117	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
	1118	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
[1]	1119	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner(0), sr, MPI_INTEGER, &
	1120	MPI_SUM, comm2d, ierr )
	1121	#else
[132]	1122	ngp_2dh = ngp_2dh_l
	1123	ngp_2dh_outer = ngp_2dh_outer_l
	1124	ngp_2dh_s_inner = ngp_2dh_s_inner_l
	1125	ngp_3d_inner = ngp_3d_inner_l
[1]	1126	#endif
	1127
	1128	ngp_3d = ngp_2dh * ( nz + 2 )
	1129
	1130	!
	1131	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
	1132	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
	1133	!-- the respective subdomain lie below the surface topography
	1134	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
	1135	ngp_3d_inner = MAX( 1, ngp_3d_inner(:) )
	1136
	1137	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l )
	1138
	1139
	1140	END SUBROUTINE init_3d_model

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source: palm/trunk/SOURCE/init_3d_model.f90 @ 134

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