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source: palm/trunk/SOURCE/init_3d_model.f90 @ 149

Last change on this file since 149 was 147, checked in by raasch, 17 years ago
further updates for turbulent inflow: reading input data of a precursor run using a smaller total domain is working
Property svn:keywords set to `Id`
File size: 41.6 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	! -----------------
[146]	9	! Allocation of hom_sum moved to parin, initialization of spectrum_x\|y directly
[147]	10	! after allocating theses arrays,
	11	! read data for recycling added as new initialization option
[139]	12	!
	13	! Former revisions:
	14	! -----------------
	15	! $Id: init_3d_model.f90 147 2008-02-01 12:41:46Z letzel $
	16	!
	17	! 138 2007-11-28 10:03:58Z letzel
[132]	18	! New counter ngp_2dh_s_inner.
	19	! Allow new case bc_uv_t = 'dirichlet_0' for channel flow.
	20	! Corrected calculation of initial volume flow for 'set_1d-model_profiles' and
	21	! 'set_constant_profiles' in case of buildings in the reference cross-sections.
[77]	22	!
[110]	23	! 108 2007-08-24 15:10:38Z letzel
	24	! Flux initialization in case of coupled runs, +momentum fluxes at top boundary,
	25	! +arrays for phase speed c_u, c_v, c_w, indices for u\|v\|w_m_l\|r changed
	26	! +qswst_remote in case of atmosphere model with humidity coupled to ocean
	27	! Rayleigh damping for ocean, optionally calculate km and kh from initial
	28	! TKE e_init
	29	!
[98]	30	! 97 2007-06-21 08:23:15Z raasch
	31	! Initialization of salinity, call of init_ocean
	32	!
[90]	33	! 87 2007-05-22 15:46:47Z raasch
	34	! var_hom and var_sum renamed pr_palm
	35	!
[77]	36	! 75 2007-03-22 09:54:05Z raasch
[73]	37	! Arrays for radiation boundary conditions are allocated (u_m_l, u_m_r, etc.),
	38	! bugfix for cases with the outflow damping layer extending over more than one
[75]	39	! subdomain, moisture renamed humidity,
	40	! new initializing action "by_user" calls user_init_3d_model,
[72]	41	! precipitation_amount/rate, ts_value are allocated, +module netcdf_control,
[51]	42	! initial velocities at nzb+1 are regarded for volume
	43	! flow control in case they have been set zero before (to avoid small timesteps)
[75]	44	! -uvmean_outflow, uxrp, vynp eliminated
[1]	45	!
[39]	46	! 19 2007-02-23 04:53:48Z raasch
	47	! +handling of top fluxes
	48	!
[3]	49	! RCS Log replace by Id keyword, revision history cleaned up
	50	!
[1]	51	! Revision 1.49 2006/08/22 15:59:07 raasch
	52	! No optimization of this file on the ibmy (Yonsei Univ.)
	53	!
	54	! Revision 1.1 1998/03/09 16:22:22 raasch
	55	! Initial revision
	56	!
	57	!
	58	! Description:
	59	! ------------
	60	! Allocation of arrays and initialization of the 3D model via
	61	! a) pre-run the 1D model
	62	! or
	63	! b) pre-set constant linear profiles
	64	! or
	65	! c) read values of a previous run
	66	!------------------------------------------------------------------------------!
	67
	68	USE arrays_3d
	69	USE averaging
[72]	70	USE cloud_parameters
[1]	71	USE constants
	72	USE control_parameters
	73	USE cpulog
	74	USE indices
	75	USE interfaces
	76	USE model_1d
[51]	77	USE netcdf_control
[1]	78	USE particle_attributes
	79	USE pegrid
	80	USE profil_parameter
	81	USE random_function_mod
	82	USE statistics
	83
	84	IMPLICIT NONE
	85
	86	INTEGER :: i, j, k, sr
	87
	88	INTEGER, DIMENSION(:), ALLOCATABLE :: ngp_2dh_l, ngp_3d_inner_l
	89
[132]	90	INTEGER, DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l, &
	91	ngp_2dh_s_inner_l
[1]	92
	93	REAL, DIMENSION(1:2) :: volume_flow_area_l, volume_flow_initial_l
	94
	95
	96	!
	97	!-- Allocate arrays
	98	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
	99	ngp_3d(0:statistic_regions), &
	100	ngp_3d_inner(0:statistic_regions), &
	101	ngp_3d_inner_l(0:statistic_regions), &
	102	sums_divnew_l(0:statistic_regions), &
	103	sums_divold_l(0:statistic_regions) )
[75]	104	ALLOCATE( rdf(nzb+1:nzt) )
[143]	105	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
[1]	106	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
[132]	107	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
	108	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
[1]	109	rmask(nys-1:nyn+1,nxl-1:nxr+1,0:statistic_regions), &
[87]	110	sums(nzb:nzt+1,pr_palm+max_pr_user), &
	111	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
[1]	112	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
	113	sums_up_fraction_l(10,3,0:statistic_regions), &
[48]	114	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
	115	ts_value(var_ts,0:statistic_regions) )
[1]	116	ALLOCATE( km_damp_x(nxl-1:nxr+1), km_damp_y(nys-1:nyn+1) )
	117
[19]	118	ALLOCATE( rif_1(nys-1:nyn+1,nxl-1:nxr+1), shf_1(nys-1:nyn+1,nxl-1:nxr+1), &
	119	ts(nys-1:nyn+1,nxl-1:nxr+1), tswst_1(nys-1:nyn+1,nxl-1:nxr+1), &
	120	us(nys-1:nyn+1,nxl-1:nxr+1), usws_1(nys-1:nyn+1,nxl-1:nxr+1), &
[102]	121	uswst_1(nys-1:nyn+1,nxl-1:nxr+1), &
	122	vsws_1(nys-1:nyn+1,nxl-1:nxr+1), &
	123	vswst_1(nys-1:nyn+1,nxl-1:nxr+1), z0(nys-1:nyn+1,nxl-1:nxr+1) )
[1]	124
	125	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	126	!
	127	!-- Leapfrog scheme needs two timelevels of diffusion quantities
[19]	128	ALLOCATE( rif_2(nys-1:nyn+1,nxl-1:nxr+1), &
	129	shf_2(nys-1:nyn+1,nxl-1:nxr+1), &
	130	tswst_2(nys-1:nyn+1,nxl-1:nxr+1), &
	131	usws_2(nys-1:nyn+1,nxl-1:nxr+1), &
[102]	132	uswst_2(nys-1:nyn+1,nxl-1:nxr+1), &
	133	vswst_2(nys-1:nyn+1,nxl-1:nxr+1), &
[1]	134	vsws_2(nys-1:nyn+1,nxl-1:nxr+1) )
	135	ENDIF
	136
[75]	137	ALLOCATE( d(nzb+1:nzta,nys:nyna,nxl:nxra), &
	138	e_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	139	e_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	140	e_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	141	kh_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	142	km_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	143	p(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	144	pt_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	145	pt_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	146	pt_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	147	tend(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	148	u_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	149	u_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	150	u_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	151	v_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	152	v_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	153	v_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	154	w_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	155	w_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
[1]	156	w_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	157
	158	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	159	ALLOCATE( kh_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	160	km_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	161	ENDIF
	162
[75]	163	IF ( humidity .OR. passive_scalar ) THEN
[1]	164	!
[75]	165	!-- 2D-humidity/scalar arrays
[1]	166	ALLOCATE ( qs(nys-1:nyn+1,nxl-1:nxr+1), &
[19]	167	qsws_1(nys-1:nyn+1,nxl-1:nxr+1), &
	168	qswst_1(nys-1:nyn+1,nxl-1:nxr+1) )
[1]	169
	170	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
[19]	171	ALLOCATE( qsws_2(nys-1:nyn+1,nxl-1:nxr+1), &
	172	qswst_2(nys-1:nyn+1,nxl-1:nxr+1) )
[1]	173	ENDIF
	174	!
[75]	175	!-- 3D-humidity/scalar arrays
[1]	176	ALLOCATE( q_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	177	q_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	178	q_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	179
	180	!
[75]	181	!-- 3D-arrays needed for humidity only
	182	IF ( humidity ) THEN
[1]	183	ALLOCATE( vpt_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	184
	185	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	186	ALLOCATE( vpt_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	187	ENDIF
	188
	189	IF ( cloud_physics ) THEN
	190	!
	191	!-- Liquid water content
	192	ALLOCATE ( ql_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[72]	193	!
	194	!-- Precipitation amount and rate (only needed if output is switched)
	195	ALLOCATE( precipitation_amount(nys-1:nyn+1,nxl-1:nxr+1), &
	196	precipitation_rate(nys-1:nyn+1,nxl-1:nxr+1) )
[1]	197	ENDIF
	198
	199	IF ( cloud_droplets ) THEN
	200	!
	201	!-- Liquid water content, change in liquid water content,
	202	!-- real volume of particles (with weighting), volume of particles
	203	ALLOCATE ( ql_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	204	ql_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	205	ql_v(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	206	ql_vp(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	207	ENDIF
	208
	209	ENDIF
	210
	211	ENDIF
	212
[94]	213	IF ( ocean ) THEN
[95]	214	ALLOCATE( saswsb_1(nys-1:nyn+1,nxl-1:nxr+1), &
	215	saswst_1(nys-1:nyn+1,nxl-1:nxr+1) )
[96]	216	ALLOCATE( rho_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	217	sa_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	218	sa_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
[94]	219	sa_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[96]	220	rho => rho_1 ! routine calc_mean_profile requires density to be a
	221	! pointer
[108]	222	IF ( humidity_remote ) THEN
	223	ALLOCATE( qswst_remote(nys-1:nyn+1,nxl-1:nxr+1) )
	224	qswst_remote = 0.0
	225	ENDIF
[94]	226	ENDIF
	227
[1]	228	!
	229	!-- 3D-array for storing the dissipation, needed for calculating the sgs
	230	!-- particle velocities
	231	IF ( use_sgs_for_particles ) THEN
	232	ALLOCATE ( diss(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	233	ENDIF
	234
	235	IF ( dt_dosp /= 9999999.9 ) THEN
	236	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
	237	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
[146]	238	spectrum_x = 0.0
	239	spectrum_y = 0.0
[1]	240	ENDIF
	241
	242	!
[138]	243	!-- 3D-arrays for the leaf area density and the canopy drag coefficient
	244	IF ( plant_canopy ) THEN
	245	ALLOCATE ( lad_s(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	246	lad_u(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	247	lad_v(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	248	lad_w(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	249	cdc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	250	ENDIF
	251
	252	!
[51]	253	!-- 4D-array for storing the Rif-values at vertical walls
	254	IF ( topography /= 'flat' ) THEN
	255	ALLOCATE( rif_wall(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1,1:4) )
	256	rif_wall = 0.0
	257	ENDIF
	258
	259	!
	260	!-- Velocities at nzb+1 needed for volume flow control
	261	IF ( conserve_volume_flow ) THEN
	262	ALLOCATE( u_nzb_p1_for_vfc(nys:nyn), v_nzb_p1_for_vfc(nxl:nxr) )
	263	u_nzb_p1_for_vfc = 0.0
	264	v_nzb_p1_for_vfc = 0.0
	265	ENDIF
	266
	267	!
[106]	268	!-- Arrays to store velocity data from t-dt and the phase speeds which
	269	!-- are needed for radiation boundary conditions
[73]	270	IF ( outflow_l ) THEN
[106]	271	ALLOCATE( u_m_l(nzb:nzt+1,nys-1:nyn+1,1:2), &
	272	v_m_l(nzb:nzt+1,nys-1:nyn+1,0:1), &
	273	w_m_l(nzb:nzt+1,nys-1:nyn+1,0:1) )
[73]	274	ENDIF
	275	IF ( outflow_r ) THEN
[106]	276	ALLOCATE( u_m_r(nzb:nzt+1,nys-1:nyn+1,nx-1:nx), &
	277	v_m_r(nzb:nzt+1,nys-1:nyn+1,nx-1:nx), &
	278	w_m_r(nzb:nzt+1,nys-1:nyn+1,nx-1:nx) )
[73]	279	ENDIF
[106]	280	IF ( outflow_l .OR. outflow_r ) THEN
	281	ALLOCATE( c_u(nzb:nzt+1,nys-1:nyn+1), c_v(nzb:nzt+1,nys-1:nyn+1), &
	282	c_w(nzb:nzt+1,nys-1:nyn+1) )
	283	ENDIF
[73]	284	IF ( outflow_s ) THEN
[106]	285	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxl-1:nxr+1), &
	286	v_m_s(nzb:nzt+1,1:2,nxl-1:nxr+1), &
	287	w_m_s(nzb:nzt+1,0:1,nxl-1:nxr+1) )
[73]	288	ENDIF
	289	IF ( outflow_n ) THEN
[106]	290	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxl-1:nxr+1), &
	291	v_m_n(nzb:nzt+1,ny-1:ny,nxl-1:nxr+1), &
	292	w_m_n(nzb:nzt+1,ny-1:ny,nxl-1:nxr+1) )
[73]	293	ENDIF
[106]	294	IF ( outflow_s .OR. outflow_n ) THEN
	295	ALLOCATE( c_u(nzb:nzt+1,nxl-1:nxr+1), c_v(nzb:nzt+1,nxl-1:nxr+1), &
	296	c_w(nzb:nzt+1,nxl-1:nxr+1) )
	297	ENDIF
[73]	298
	299	!
[1]	300	!-- Initial assignment of the pointers
	301	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	302
[19]	303	rif_m => rif_1; rif => rif_2
	304	shf_m => shf_1; shf => shf_2
	305	tswst_m => tswst_1; tswst => tswst_2
	306	usws_m => usws_1; usws => usws_2
[102]	307	uswst_m => uswst_1; uswst => uswst_2
[19]	308	vsws_m => vsws_1; vsws => vsws_2
[102]	309	vswst_m => vswst_1; vswst => vswst_2
[1]	310	e_m => e_1; e => e_2; e_p => e_3; te_m => e_3
	311	kh_m => kh_1; kh => kh_2
	312	km_m => km_1; km => km_2
	313	pt_m => pt_1; pt => pt_2; pt_p => pt_3; tpt_m => pt_3
	314	u_m => u_1; u => u_2; u_p => u_3; tu_m => u_3
	315	v_m => v_1; v => v_2; v_p => v_3; tv_m => v_3
	316	w_m => w_1; w => w_2; w_p => w_3; tw_m => w_3
	317
[75]	318	IF ( humidity .OR. passive_scalar ) THEN
[19]	319	qsws_m => qsws_1; qsws => qsws_2
	320	qswst_m => qswst_1; qswst => qswst_2
[1]	321	q_m => q_1; q => q_2; q_p => q_3; tq_m => q_3
[75]	322	IF ( humidity ) vpt_m => vpt_1; vpt => vpt_2
[1]	323	IF ( cloud_physics ) ql => ql_1
	324	IF ( cloud_droplets ) THEN
	325	ql => ql_1
	326	ql_c => ql_2
	327	ENDIF
	328	ENDIF
	329
	330	ELSE
	331
[19]	332	rif => rif_1
	333	shf => shf_1
	334	tswst => tswst_1
	335	usws => usws_1
[102]	336	uswst => uswst_1
[19]	337	vsws => vsws_1
[102]	338	vswst => vswst_1
[19]	339	e => e_1; e_p => e_2; te_m => e_3; e_m => e_3
	340	kh => kh_1
	341	km => km_1
	342	pt => pt_1; pt_p => pt_2; tpt_m => pt_3; pt_m => pt_3
	343	u => u_1; u_p => u_2; tu_m => u_3; u_m => u_3
	344	v => v_1; v_p => v_2; tv_m => v_3; v_m => v_3
	345	w => w_1; w_p => w_2; tw_m => w_3; w_m => w_3
[1]	346
[75]	347	IF ( humidity .OR. passive_scalar ) THEN
[1]	348	qsws => qsws_1
[19]	349	qswst => qswst_1
[94]	350	q => q_1; q_p => q_2; tq_m => q_3; q_m => q_3
[75]	351	IF ( humidity ) vpt => vpt_1
[1]	352	IF ( cloud_physics ) ql => ql_1
	353	IF ( cloud_droplets ) THEN
	354	ql => ql_1
	355	ql_c => ql_2
	356	ENDIF
	357	ENDIF
	358
[94]	359	IF ( ocean ) THEN
[95]	360	saswsb => saswsb_1
[94]	361	saswst => saswst_1
	362	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
	363	ENDIF
	364
[1]	365	ENDIF
	366
	367	!
	368	!-- Initialize model variables
[147]	369	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
	370	TRIM( initializing_actions ) /= 'read_data_for_recycling' ) THEN
[1]	371	!
	372	!-- First model run of a possible job queue.
	373	!-- Initial profiles of the variables must be computes.
	374	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
	375	!
	376	!-- Use solutions of the 1D model as initial profiles,
	377	!-- start 1D model
	378	CALL init_1d_model
	379	!
	380	!-- Transfer initial profiles to the arrays of the 3D model
	381	DO i = nxl-1, nxr+1
	382	DO j = nys-1, nyn+1
	383	e(:,j,i) = e1d
	384	kh(:,j,i) = kh1d
	385	km(:,j,i) = km1d
	386	pt(:,j,i) = pt_init
	387	u(:,j,i) = u1d
	388	v(:,j,i) = v1d
	389	ENDDO
	390	ENDDO
	391
[75]	392	IF ( humidity .OR. passive_scalar ) THEN
[1]	393	DO i = nxl-1, nxr+1
	394	DO j = nys-1, nyn+1
	395	q(:,j,i) = q_init
	396	ENDDO
	397	ENDDO
	398	ENDIF
	399
	400	IF ( .NOT. constant_diffusion ) THEN
	401	DO i = nxl-1, nxr+1
	402	DO j = nys-1, nyn+1
	403	e(:,j,i) = e1d
	404	ENDDO
	405	ENDDO
	406	!
	407	!-- Store initial profiles for output purposes etc.
	408	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	409
	410	IF ( prandtl_layer ) THEN
	411	rif = rif1d(nzb+1)
	412	ts = 0.0 ! could actually be computed more accurately in the
	413	! 1D model. Update when opportunity arises.
	414	us = us1d
	415	usws = usws1d
	416	vsws = vsws1d
	417	ELSE
	418	ts = 0.0 ! must be set, because used in
	419	rif = 0.0 ! flowste
	420	us = 0.0
	421	usws = 0.0
	422	vsws = 0.0
	423	ENDIF
	424
	425	ELSE
	426	e = 0.0 ! must be set, because used in
	427	rif = 0.0 ! flowste
	428	ts = 0.0
	429	us = 0.0
	430	usws = 0.0
	431	vsws = 0.0
	432	ENDIF
[102]	433	uswst = top_momentumflux_u
	434	vswst = top_momentumflux_v
[1]	435
	436	!
	437	!-- In every case qs = 0.0 (see also pt)
	438	!-- This could actually be computed more accurately in the 1D model.
	439	!-- Update when opportunity arises!
[75]	440	IF ( humidity .OR. passive_scalar ) qs = 0.0
[1]	441
	442	!
	443	!-- inside buildings set velocities back to zero
	444	IF ( topography /= 'flat' ) THEN
	445	DO i = nxl-1, nxr+1
	446	DO j = nys-1, nyn+1
	447	u(nzb:nzb_u_inner(j,i),j,i) = 0.0
	448	v(nzb:nzb_v_inner(j,i),j,i) = 0.0
	449	ENDDO
	450	ENDDO
[132]	451	IF ( conserve_volume_flow ) THEN
	452	IF ( nxr == nx ) THEN
	453	DO j = nys, nyn
	454	DO k = nzb + 1, nzb_u_inner(j,nx)
	455	u_nzb_p1_for_vfc(j) = u1d(k) * dzu(k)
	456	ENDDO
	457	ENDDO
	458	ENDIF
	459	IF ( nyn == ny ) THEN
	460	DO i = nxl, nxr
	461	DO k = nzb + 1, nzb_v_inner(ny,i)
	462	v_nzb_p1_for_vfc(i) = v1d(k) * dzu(k)
	463	ENDDO
	464	ENDDO
	465	ENDIF
	466	ENDIF
[1]	467	!
	468	!-- WARNING: The extra boundary conditions set after running the
	469	!-- ------- 1D model impose an error on the divergence one layer
	470	!-- below the topography; need to correct later
	471	!-- ATTENTION: Provisional correction for Piacsek & Williams
	472	!-- --------- advection scheme: keep u and v zero one layer below
	473	!-- the topography.
	474	IF ( ibc_uv_b == 0 ) THEN
	475	!
	476	!-- Satisfying the Dirichlet condition with an extra layer below
	477	!-- the surface where the u and v component change their sign.
	478	DO i = nxl-1, nxr+1
	479	DO j = nys-1, nyn+1
	480	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = -u(1,j,i)
	481	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = -v(1,j,i)
	482	ENDDO
	483	ENDDO
	484
	485	ELSE
	486	!
	487	!-- Neumann condition
	488	DO i = nxl-1, nxr+1
	489	DO j = nys-1, nyn+1
	490	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
	491	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
	492	ENDDO
	493	ENDDO
	494
	495	ENDIF
	496
	497	ENDIF
	498
	499	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
	500	THEN
	501	!
	502	!-- Use constructed initial profiles (velocity constant with height,
	503	!-- temperature profile with constant gradient)
	504	DO i = nxl-1, nxr+1
	505	DO j = nys-1, nyn+1
	506	pt(:,j,i) = pt_init
	507	u(:,j,i) = u_init
	508	v(:,j,i) = v_init
	509	ENDDO
	510	ENDDO
[75]	511
[1]	512	!
[51]	513	!-- Set initial horizontal velocities at the lowest computational grid levels
	514	!-- to zero in order to avoid too small time steps caused by the diffusion
[1]	515	!-- limit in the initial phase of a run (at k=1, dz/2 occurs in the
[51]	516	!-- limiting formula!). The original values are stored to be later used for
	517	!-- volume flow control.
[1]	518	DO i = nxl-1, nxr+1
	519	DO j = nys-1, nyn+1
	520	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0
	521	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0
	522	ENDDO
	523	ENDDO
[51]	524	IF ( conserve_volume_flow ) THEN
	525	IF ( nxr == nx ) THEN
	526	DO j = nys, nyn
[132]	527	DO k = nzb + 1, nzb_u_inner(j,nx) + 1
	528	u_nzb_p1_for_vfc(j) = u_init(k) * dzu(k)
	529	ENDDO
[51]	530	ENDDO
	531	ENDIF
	532	IF ( nyn == ny ) THEN
	533	DO i = nxl, nxr
[132]	534	DO k = nzb + 1, nzb_v_inner(ny,i) + 1
	535	v_nzb_p1_for_vfc(i) = v_init(k) * dzu(k)
	536	ENDDO
[51]	537	ENDDO
	538	ENDIF
	539	ENDIF
[1]	540
[75]	541	IF ( humidity .OR. passive_scalar ) THEN
[1]	542	DO i = nxl-1, nxr+1
	543	DO j = nys-1, nyn+1
	544	q(:,j,i) = q_init
	545	ENDDO
	546	ENDDO
	547	ENDIF
	548
[94]	549	IF ( ocean ) THEN
	550	DO i = nxl-1, nxr+1
	551	DO j = nys-1, nyn+1
	552	sa(:,j,i) = sa_init
	553	ENDDO
	554	ENDDO
	555	ENDIF
[1]	556
	557	IF ( constant_diffusion ) THEN
	558	km = km_constant
	559	kh = km / prandtl_number
[108]	560	e = 0.0
	561	ELSEIF ( e_init > 0.0 ) THEN
	562	DO k = nzb+1, nzt
	563	km(k,:,:) = 0.1 * l_grid(k) * SQRT( e_init )
	564	ENDDO
	565	km(nzb,:,:) = km(nzb+1,:,:)
	566	km(nzt+1,:,:) = km(nzt,:,:)
	567	kh = km / prandtl_number
	568	e = e_init
[1]	569	ELSE
[108]	570	IF ( .NOT. ocean ) THEN
	571	kh = 0.01 ! there must exist an initial diffusion, because
	572	km = 0.01 ! otherwise no TKE would be produced by the
	573	! production terms, as long as not yet
	574	! e = (u/cm)*2 at k=nzb+1
	575	ELSE
	576	kh = 0.00001
	577	km = 0.00001
	578	ENDIF
	579	e = 0.0
[1]	580	ENDIF
[102]	581	rif = 0.0
	582	ts = 0.0
	583	us = 0.0
	584	usws = 0.0
	585	uswst = top_momentumflux_u
	586	vsws = 0.0
	587	vswst = top_momentumflux_v
[75]	588	IF ( humidity .OR. passive_scalar ) qs = 0.0
[1]	589
	590	!
	591	!-- Compute initial temperature field and other constants used in case
	592	!-- of a sloping surface
	593	IF ( sloping_surface ) CALL init_slope
	594
[46]	595	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
	596	THEN
	597	!
	598	!-- Initialization will completely be done by the user
	599	CALL user_init_3d_model
	600
[1]	601	ENDIF
	602
	603	!
[132]	604	!-- apply channel flow boundary condition
	605	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
	606
	607	u(nzt+1,:,:) = 0.0
	608	v(nzt+1,:,:) = 0.0
	609
	610	!-- for the Dirichlet condition to be correctly applied at the top, set
	611	!-- ug and vg to zero there
	612	ug(nzt+1) = 0.0
	613	vg(nzt+1) = 0.0
	614
	615	ENDIF
	616
	617	!
[1]	618	!-- Calculate virtual potential temperature
[75]	619	IF ( humidity ) vpt = pt * ( 1.0 + 0.61 * q )
[1]	620
	621	!
	622	!-- Store initial profiles for output purposes etc.
	623	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	624	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
	625	IF ( ibc_uv_b == 0 ) THEN
	626	hom(nzb,1,5,:) = -hom(nzb+1,1,5,:) ! due to satisfying the Dirichlet
	627	hom(nzb,1,6,:) = -hom(nzb+1,1,6,:) ! condition with an extra layer
	628	! below the surface where the u and v component change their sign
	629	ENDIF
	630	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	631	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
	632	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
	633
[97]	634	IF ( ocean ) THEN
	635	!
	636	!-- Store initial salinity profile
	637	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
	638	ENDIF
[1]	639
[75]	640	IF ( humidity ) THEN
[1]	641	!
	642	!-- Store initial profile of total water content, virtual potential
	643	!-- temperature
	644	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	645	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
	646	IF ( cloud_physics .OR. cloud_droplets ) THEN
	647	!
	648	!-- Store initial profile of specific humidity and potential
	649	!-- temperature
	650	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	651	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	652	ENDIF
	653	ENDIF
	654
	655	IF ( passive_scalar ) THEN
	656	!
	657	!-- Store initial scalar profile
	658	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	659	ENDIF
	660
	661	!
[19]	662	!-- Initialize fluxes at bottom surface
[1]	663	IF ( use_surface_fluxes ) THEN
	664
	665	IF ( constant_heatflux ) THEN
	666	!
	667	!-- Heat flux is prescribed
	668	IF ( random_heatflux ) THEN
	669	CALL disturb_heatflux
	670	ELSE
	671	shf = surface_heatflux
	672	!
	673	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
	674	IF ( TRIM( topography ) /= 'flat' ) THEN
	675	DO i = nxl-1, nxr+1
	676	DO j = nys-1, nyn+1
	677	IF ( nzb_s_inner(j,i) /= 0 ) THEN
	678	shf(j,i) = wall_heatflux(0)
	679	ENDIF
	680	ENDDO
	681	ENDDO
	682	ENDIF
	683	ENDIF
	684	IF ( ASSOCIATED( shf_m ) ) shf_m = shf
	685	ENDIF
	686
	687	!
	688	!-- Determine the near-surface water flux
[75]	689	IF ( humidity .OR. passive_scalar ) THEN
[1]	690	IF ( constant_waterflux ) THEN
	691	qsws = surface_waterflux
	692	IF ( ASSOCIATED( qsws_m ) ) qsws_m = qsws
	693	ENDIF
	694	ENDIF
	695
	696	ENDIF
	697
	698	!
[19]	699	!-- Initialize fluxes at top surface
[94]	700	!-- Currently, only the heatflux and salinity flux can be prescribed.
	701	!-- The latent flux is zero in this case!
[19]	702	IF ( use_top_fluxes ) THEN
	703
	704	IF ( constant_top_heatflux ) THEN
	705	!
	706	!-- Heat flux is prescribed
	707	tswst = top_heatflux
	708	IF ( ASSOCIATED( tswst_m ) ) tswst_m = tswst
	709
[75]	710	IF ( humidity .OR. passive_scalar ) THEN
[19]	711	qswst = 0.0
	712	IF ( ASSOCIATED( qswst_m ) ) qswst_m = qswst
	713	ENDIF
[94]	714
	715	IF ( ocean ) THEN
[95]	716	saswsb = bottom_salinityflux
[94]	717	saswst = top_salinityflux
	718	ENDIF
[102]	719	ENDIF
[19]	720
[102]	721	!
	722	!-- Initialization in case of a coupled model run
	723	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
	724	tswst = 0.0
	725	IF ( ASSOCIATED( tswst_m ) ) tswst_m = tswst
	726	ENDIF
	727
[19]	728	ENDIF
	729
	730	!
[1]	731	!-- Initialize Prandtl layer quantities
	732	IF ( prandtl_layer ) THEN
	733
	734	z0 = roughness_length
	735
	736	IF ( .NOT. constant_heatflux ) THEN
	737	!
	738	!-- Surface temperature is prescribed. Here the heat flux cannot be
	739	!-- simply estimated, because therefore rif, u* and theta* would have
	740	!-- to be computed by iteration. This is why the heat flux is assumed
	741	!-- to be zero before the first time step. It approaches its correct
	742	!-- value in the course of the first few time steps.
	743	shf = 0.0
	744	IF ( ASSOCIATED( shf_m ) ) shf_m = 0.0
	745	ENDIF
	746
[75]	747	IF ( humidity .OR. passive_scalar ) THEN
[1]	748	IF ( .NOT. constant_waterflux ) THEN
	749	qsws = 0.0
	750	IF ( ASSOCIATED( qsws_m ) ) qsws_m = 0.0
	751	ENDIF
	752	ENDIF
	753
	754	ENDIF
	755
	756	!
	757	!-- Calculate the initial volume flow at the right and north boundary
	758	IF ( conserve_volume_flow ) THEN
	759
	760	volume_flow_initial_l = 0.0
	761	volume_flow_area_l = 0.0
	762
	763	IF ( nxr == nx ) THEN
	764	DO j = nys, nyn
	765	DO k = nzb_2d(j,nx) + 1, nzt
	766	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	767	u(k,j,nx) * dzu(k)
	768	volume_flow_area_l(1) = volume_flow_area_l(1) + dzu(k)
	769	ENDDO
[51]	770	!
	771	!-- Correction if velocity at nzb+1 has been set zero further above
	772	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	773	u_nzb_p1_for_vfc(j)
[1]	774	ENDDO
	775	ENDIF
	776
	777	IF ( nyn == ny ) THEN
	778	DO i = nxl, nxr
	779	DO k = nzb_2d(ny,i) + 1, nzt
	780	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	781	v(k,ny,i) * dzu(k)
	782	volume_flow_area_l(2) = volume_flow_area_l(2) + dzu(k)
	783	ENDDO
[51]	784	!
	785	!-- Correction if velocity at nzb+1 has been set zero further above
	786	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	787	v_nzb_p1_for_vfc(i)
[1]	788	ENDDO
	789	ENDIF
	790
	791	#if defined( __parallel )
	792	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	793	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	794	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	795	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	796	#else
	797	volume_flow_initial = volume_flow_initial_l
	798	volume_flow_area = volume_flow_area_l
	799	#endif
	800	ENDIF
	801
	802	!
	803	!-- For the moment, perturbation pressure and vertical velocity are zero
	804	p = 0.0; w = 0.0
	805
	806	!
	807	!-- Initialize array sums (must be defined in first call of pres)
	808	sums = 0.0
	809
	810	!
[72]	811	!-- Treating cloud physics, liquid water content and precipitation amount
	812	!-- are zero at beginning of the simulation
	813	IF ( cloud_physics ) THEN
	814	ql = 0.0
	815	IF ( precipitation ) precipitation_amount = 0.0
	816	ENDIF
[1]	817
	818	!
	819	!-- Impose vortex with vertical axis on the initial velocity profile
	820	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	821	CALL init_rankine
	822	ENDIF
	823
	824	!
	825	!-- Impose temperature anomaly (advection test only)
	826	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
	827	CALL init_pt_anomaly
	828	ENDIF
	829
	830	!
	831	!-- If required, change the surface temperature at the start of the 3D run
	832	IF ( pt_surface_initial_change /= 0.0 ) THEN
	833	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	834	ENDIF
	835
	836	!
	837	!-- If required, change the surface humidity/scalar at the start of the 3D
	838	!-- run
[75]	839	IF ( ( humidity .OR. passive_scalar ) .AND. &
[1]	840	q_surface_initial_change /= 0.0 ) THEN
	841	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
	842	ENDIF
	843
	844	!
	845	!-- Initialize the random number generator (from numerical recipes)
	846	CALL random_function_ini
	847
	848	!
	849	!-- Impose random perturbation on the horizontal velocity field and then
	850	!-- remove the divergences from the velocity field
	851	IF ( create_disturbances ) THEN
[75]	852	CALL disturb_field( nzb_u_inner, tend, u )
	853	CALL disturb_field( nzb_v_inner, tend, v )
[1]	854	n_sor = nsor_ini
	855	CALL pres
	856	n_sor = nsor
	857	ENDIF
	858
	859	!
	860	!-- Once again set the perturbation pressure explicitly to zero in order to
	861	!-- assure that it does not generate any divergences in the first time step.
	862	!-- At t=0 the velocity field is free of divergence (as constructed above).
	863	!-- Divergences being created during a time step are not yet known and thus
	864	!-- cannot be corrected during the time step yet.
	865	p = 0.0
	866
	867	!
	868	!-- Initialize old and new time levels.
	869	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	870	e_m = e; pt_m = pt; u_m = u; v_m = v; w_m = w; kh_m = kh; km_m = km
	871	ELSE
	872	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
	873	ENDIF
	874	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
	875
[75]	876	IF ( humidity .OR. passive_scalar ) THEN
[1]	877	IF ( ASSOCIATED( q_m ) ) q_m = q
	878	IF ( timestep_scheme(1:5) == 'runge' ) tq_m = 0.0
	879	q_p = q
[75]	880	IF ( humidity .AND. ASSOCIATED( vpt_m ) ) vpt_m = vpt
[1]	881	ENDIF
	882
[94]	883	IF ( ocean ) THEN
	884	tsa_m = 0.0
	885	sa_p = sa
	886	ENDIF
	887
[73]	888	!
	889	!-- Initialize old timelevels needed for radiation boundary conditions
	890	IF ( outflow_l ) THEN
[106]	891	u_m_l(:,:,:) = u(:,:,1:2)
	892	v_m_l(:,:,:) = v(:,:,0:1)
	893	w_m_l(:,:,:) = w(:,:,0:1)
[73]	894	ENDIF
	895	IF ( outflow_r ) THEN
[106]	896	u_m_r(:,:,:) = u(:,:,nx-1:nx)
	897	v_m_r(:,:,:) = v(:,:,nx-1:nx)
	898	w_m_r(:,:,:) = w(:,:,nx-1:nx)
[73]	899	ENDIF
	900	IF ( outflow_s ) THEN
[106]	901	u_m_s(:,:,:) = u(:,0:1,:)
	902	v_m_s(:,:,:) = v(:,1:2,:)
	903	w_m_s(:,:,:) = w(:,0:1,:)
[73]	904	ENDIF
	905	IF ( outflow_n ) THEN
[106]	906	u_m_n(:,:,:) = u(:,ny-1:ny,:)
	907	v_m_n(:,:,:) = v(:,ny-1:ny,:)
	908	w_m_n(:,:,:) = w(:,ny-1:ny,:)
[73]	909	ENDIF
	910
[147]	911	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
	912	TRIM( initializing_actions ) == 'read_data_for_recycling' ) &
[1]	913	THEN
	914	!
[147]	915	!-- When reading data for initializing the recycling method, first read
	916	!-- some of the global variables from restart file
	917	IF ( TRIM( initializing_actions ) == 'read_data_for_recycling' ) THEN
	918	WRITE (9,*) 'before read_parts_of_var_list'
	919	CALL local_flush( 9 )
	920	CALL read_parts_of_var_list
	921	WRITE (9,*) 'after read_parts_of_var_list'
	922	CALL local_flush( 9 )
	923	CALL close_file( 13 )
	924	ENDIF
	925
	926	!
[1]	927	!-- Read binary data from restart file
[147]	928	WRITE (9,*) 'before read_3d_binary'
	929	CALL local_flush( 9 )
[1]	930	CALL read_3d_binary
[147]	931	WRITE (9,*) 'after read_3d_binary'
	932	CALL local_flush( 9 )
[1]	933
	934	!
	935	!-- Calculate initial temperature field and other constants used in case
	936	!-- of a sloping surface
	937	IF ( sloping_surface ) CALL init_slope
	938
	939	!
	940	!-- Initialize new time levels (only done in order to set boundary values
	941	!-- including ghost points)
	942	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
[75]	943	IF ( humidity .OR. passive_scalar ) q_p = q
[94]	944	IF ( ocean ) sa_p = sa
[1]	945
	946	ELSE
	947	!
	948	!-- Actually this part of the programm should not be reached
	949	IF ( myid == 0 ) PRINT*,'+++ init_3d_model: unknown initializing ', &
	950	'problem'
	951	CALL local_stop
	952	ENDIF
	953
	954	!
[138]	955	!-- Initialization of the leaf area density
	956	IF ( plant_canopy ) THEN
	957
	958	SELECT CASE ( TRIM( canopy_mode ) )
	959
	960	CASE( 'block' )
	961
	962	DO i = nxl-1, nxr+1
	963	DO j = nys-1, nyn+1
	964	lad_s(:,j,i) = lad(:)
	965	cdc(:,j,i) = drag_coefficient
	966	ENDDO
	967	ENDDO
	968
	969	CASE DEFAULT
	970
	971	!
	972	!-- The DEFAULT case is reached either if the parameter
	973	!-- canopy mode contains a wrong character string or if the
	974	!-- user has coded a special case in the user interface.
	975	!-- There, the subroutine user_init_plant_canopy checks
	976	!-- which of these two conditions applies.
	977	CALL user_init_plant_canopy
	978
	979	END SELECT
	980
	981	CALL exchange_horiz( lad_s )
	982	CALL exchange_horiz( cdc )
	983
	984	DO i = nxl, nxr
	985	DO j = nys, nyn
	986	DO k = nzb, nzt+1
	987	lad_u(k,j,i) = 0.5 * ( lad_s(k,j,i-1) + lad_s(k,j,i) )
	988	lad_v(k,j,i) = 0.5 * ( lad_s(k,j-1,i) + lad_s(k,j,i) )
	989	ENDDO
	990	DO k = nzb, nzt
	991	lad_w(k,j,i) = 0.5 * ( lad_s(k+1,j,i) + lad_s(k,j,i) )
	992	ENDDO
	993	ENDDO
	994	ENDDO
	995
	996	lad_w(nzt+1,:,:) = lad_w(nzt,:,:)
	997
	998	CALL exchange_horiz( lad_u )
	999	CALL exchange_horiz( lad_v )
	1000	CALL exchange_horiz( lad_w )
	1001
	1002	ENDIF
	1003
	1004	!
[1]	1005	!-- If required, initialize dvrp-software
	1006	IF ( dt_dvrp /= 9999999.9 ) CALL init_dvrp
	1007
[96]	1008	IF ( ocean ) THEN
[1]	1009	!
[96]	1010	!-- Initialize quantities needed for the ocean model
	1011	CALL init_ocean
	1012	ELSE
	1013	!
	1014	!-- Initialize quantities for handling cloud physics
	1015	!-- This routine must be called before init_particles, because
	1016	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
	1017	!-- init_particles) is not defined.
	1018	CALL init_cloud_physics
	1019	ENDIF
[1]	1020
	1021	!
	1022	!-- If required, initialize particles
[63]	1023	IF ( particle_advection ) CALL init_particles
[1]	1024
	1025	!
	1026	!-- Initialize quantities for special advections schemes
	1027	CALL init_advec
	1028
	1029	!
	1030	!-- Initialize Rayleigh damping factors
	1031	rdf = 0.0
	1032	IF ( rayleigh_damping_factor /= 0.0 ) THEN
[108]	1033	IF ( .NOT. ocean ) THEN
	1034	DO k = nzb+1, nzt
	1035	IF ( zu(k) >= rayleigh_damping_height ) THEN
	1036	rdf(k) = rayleigh_damping_factor * &
[1]	1037	( SIN( pi * 0.5 * ( zu(k) - rayleigh_damping_height ) &
	1038	/ ( zu(nzt) - rayleigh_damping_height ) )&
	1039	)**2
[108]	1040	ENDIF
	1041	ENDDO
	1042	ELSE
	1043	DO k = nzt, nzb+1, -1
	1044	IF ( zu(k) <= rayleigh_damping_height ) THEN
	1045	rdf(k) = rayleigh_damping_factor * &
	1046	( SIN( pi * 0.5 * ( rayleigh_damping_height - zu(k) ) &
	1047	/ ( rayleigh_damping_height - zu(nzb+1)))&
	1048	)**2
	1049	ENDIF
	1050	ENDDO
	1051	ENDIF
[1]	1052	ENDIF
	1053
	1054	!
	1055	!-- Initialize diffusivities used within the outflow damping layer in case of
	1056	!-- non-cyclic lateral boundaries. A linear increase is assumed over the first
	1057	!-- half of the width of the damping layer
[73]	1058	IF ( bc_lr == 'dirichlet/radiation' ) THEN
[1]	1059
	1060	DO i = nxl-1, nxr+1
[73]	1061	IF ( i >= nx - outflow_damping_width ) THEN
	1062	km_damp_x(i) = km_damp_max * MIN( 1.0, &
	1063	( i - ( nx - outflow_damping_width ) ) / &
	1064	REAL( outflow_damping_width/2 ) &
	1065	)
	1066	ELSE
	1067	km_damp_x(i) = 0.0
	1068	ENDIF
	1069	ENDDO
[1]	1070
[73]	1071	ELSEIF ( bc_lr == 'radiation/dirichlet' ) THEN
[1]	1072
[73]	1073	DO i = nxl-1, nxr+1
	1074	IF ( i <= outflow_damping_width ) THEN
	1075	km_damp_x(i) = km_damp_max * MIN( 1.0, &
	1076	( outflow_damping_width - i ) / &
	1077	REAL( outflow_damping_width/2 ) &
	1078	)
	1079	ELSE
	1080	km_damp_x(i) = 0.0
	1081	ENDIF
	1082	ENDDO
[1]	1083
[73]	1084	ENDIF
[1]	1085
[73]	1086	IF ( bc_ns == 'dirichlet/radiation' ) THEN
[1]	1087
[73]	1088	DO j = nys-1, nyn+1
	1089	IF ( j >= ny - outflow_damping_width ) THEN
	1090	km_damp_y(j) = km_damp_max * MIN( 1.0, &
	1091	( j - ( ny - outflow_damping_width ) ) / &
	1092	REAL( outflow_damping_width/2 ) &
	1093	)
	1094	ELSE
	1095	km_damp_y(j) = 0.0
[1]	1096	ENDIF
	1097	ENDDO
	1098
[73]	1099	ELSEIF ( bc_ns == 'radiation/dirichlet' ) THEN
[1]	1100
	1101	DO j = nys-1, nyn+1
[73]	1102	IF ( j <= outflow_damping_width ) THEN
	1103	km_damp_y(j) = km_damp_max * MIN( 1.0, &
	1104	( outflow_damping_width - j ) / &
	1105	REAL( outflow_damping_width/2 ) &
	1106	)
	1107	ELSE
	1108	km_damp_y(j) = 0.0
[1]	1109	ENDIF
[73]	1110	ENDDO
[1]	1111
	1112	ENDIF
	1113
	1114	!
	1115	!-- Initialize local summation arrays for UP flow_statistics. This is necessary
	1116	!-- because they may not yet have been initialized when they are called from
	1117	!-- flow_statistics (or - depending on the chosen model run - are never
	1118	!-- initialized)
	1119	sums_divnew_l = 0.0
	1120	sums_divold_l = 0.0
	1121	sums_l_l = 0.0
	1122	sums_up_fraction_l = 0.0
	1123	sums_wsts_bc_l = 0.0
	1124
	1125	!
	1126	!-- Pre-set masks for regional statistics. Default is the total model domain.
	1127	rmask = 1.0
	1128
	1129	!
[51]	1130	!-- User-defined initializing actions. Check afterwards, if maximum number
	1131	!-- of allowed timeseries is not exceeded
[1]	1132	CALL user_init
	1133
[51]	1134	IF ( dots_num > dots_max ) THEN
	1135	IF ( myid == 0 ) THEN
	1136	PRINT*, '+++ user_init: number of time series quantities exceeds', &
	1137	' its maximum of dots_max = ', dots_max
	1138	PRINT*, ' Please increase dots_max in modules.f90.'
	1139	ENDIF
	1140	CALL local_stop
	1141	ENDIF
	1142
[1]	1143	!
	1144	!-- Input binary data file is not needed anymore. This line must be placed
	1145	!-- after call of user_init!
	1146	CALL close_file( 13 )
	1147
	1148	!
	1149	!-- Compute total sum of active mask grid points
	1150	!-- ngp_2dh: number of grid points of a horizontal cross section through the
	1151	!-- total domain
	1152	!-- ngp_3d: number of grid points of the total domain
[132]	1153	ngp_2dh_outer_l = 0
	1154	ngp_2dh_outer = 0
	1155	ngp_2dh_s_inner_l = 0
	1156	ngp_2dh_s_inner = 0
	1157	ngp_2dh_l = 0
	1158	ngp_2dh = 0
	1159	ngp_3d_inner_l = 0
	1160	ngp_3d_inner = 0
	1161	ngp_3d = 0
	1162	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
[1]	1163
	1164	DO sr = 0, statistic_regions
	1165	DO i = nxl, nxr
	1166	DO j = nys, nyn
	1167	IF ( rmask(j,i,sr) == 1.0 ) THEN
	1168	!
	1169	!-- All xy-grid points
	1170	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1171	!
	1172	!-- xy-grid points above topography
	1173	DO k = nzb_s_outer(j,i), nz + 1
	1174	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
	1175	ENDDO
[132]	1176	DO k = nzb_s_inner(j,i), nz + 1
	1177	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
	1178	ENDDO
[1]	1179	!
	1180	!-- All grid points of the total domain above topography
	1181	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
	1182	( nz - nzb_s_inner(j,i) + 2 )
	1183	ENDIF
	1184	ENDDO
	1185	ENDDO
	1186	ENDDO
	1187
	1188	sr = statistic_regions + 1
	1189	#if defined( __parallel )
	1190	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
	1191	comm2d, ierr )
	1192	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
	1193	MPI_INTEGER, MPI_SUM, comm2d, ierr )
[132]	1194	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
	1195	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
[1]	1196	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner(0), sr, MPI_INTEGER, &
	1197	MPI_SUM, comm2d, ierr )
	1198	#else
[132]	1199	ngp_2dh = ngp_2dh_l
	1200	ngp_2dh_outer = ngp_2dh_outer_l
	1201	ngp_2dh_s_inner = ngp_2dh_s_inner_l
	1202	ngp_3d_inner = ngp_3d_inner_l
[1]	1203	#endif
	1204
	1205	ngp_3d = ngp_2dh * ( nz + 2 )
	1206
	1207	!
	1208	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
	1209	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
	1210	!-- the respective subdomain lie below the surface topography
	1211	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
	1212	ngp_3d_inner = MAX( 1, ngp_3d_inner(:) )
	1213
	1214	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l )
	1215
	1216
	1217	END SUBROUTINE init_3d_model

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