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source: palm/trunk/SOURCE/init_3d_model.f90 @ 188

Last change on this file since 188 was 181, checked in by raasch, 16 years ago
bugfixes + adjustments for SGI ICE system
Property svn:keywords set to `Id`
File size: 49.1 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	! -----------------
[181]	9	! Bugfix: zero assignments to tendency arrays in case of restarts
[153]	10	! Further amendments to and modifications in the initialisation of the plant
	11	! canopy model
[146]	12	! Allocation of hom_sum moved to parin, initialization of spectrum_x\|y directly
[147]	13	! after allocating theses arrays,
[181]	14	! read data for recycling added as new initialization option,
	15	! dummy allocation for diss
[139]	16	!
	17	! Former revisions:
	18	! -----------------
	19	! $Id: init_3d_model.f90 181 2008-07-30 07:07:47Z letzel $
	20	!
	21	! 138 2007-11-28 10:03:58Z letzel
[132]	22	! New counter ngp_2dh_s_inner.
	23	! Allow new case bc_uv_t = 'dirichlet_0' for channel flow.
	24	! Corrected calculation of initial volume flow for 'set_1d-model_profiles' and
	25	! 'set_constant_profiles' in case of buildings in the reference cross-sections.
[77]	26	!
[110]	27	! 108 2007-08-24 15:10:38Z letzel
	28	! Flux initialization in case of coupled runs, +momentum fluxes at top boundary,
	29	! +arrays for phase speed c_u, c_v, c_w, indices for u\|v\|w_m_l\|r changed
	30	! +qswst_remote in case of atmosphere model with humidity coupled to ocean
	31	! Rayleigh damping for ocean, optionally calculate km and kh from initial
	32	! TKE e_init
	33	!
[98]	34	! 97 2007-06-21 08:23:15Z raasch
	35	! Initialization of salinity, call of init_ocean
	36	!
[90]	37	! 87 2007-05-22 15:46:47Z raasch
	38	! var_hom and var_sum renamed pr_palm
	39	!
[77]	40	! 75 2007-03-22 09:54:05Z raasch
[73]	41	! Arrays for radiation boundary conditions are allocated (u_m_l, u_m_r, etc.),
	42	! bugfix for cases with the outflow damping layer extending over more than one
[75]	43	! subdomain, moisture renamed humidity,
	44	! new initializing action "by_user" calls user_init_3d_model,
[72]	45	! precipitation_amount/rate, ts_value are allocated, +module netcdf_control,
[51]	46	! initial velocities at nzb+1 are regarded for volume
	47	! flow control in case they have been set zero before (to avoid small timesteps)
[75]	48	! -uvmean_outflow, uxrp, vynp eliminated
[1]	49	!
[39]	50	! 19 2007-02-23 04:53:48Z raasch
	51	! +handling of top fluxes
	52	!
[3]	53	! RCS Log replace by Id keyword, revision history cleaned up
	54	!
[1]	55	! Revision 1.49 2006/08/22 15:59:07 raasch
	56	! No optimization of this file on the ibmy (Yonsei Univ.)
	57	!
	58	! Revision 1.1 1998/03/09 16:22:22 raasch
	59	! Initial revision
	60	!
	61	!
	62	! Description:
	63	! ------------
	64	! Allocation of arrays and initialization of the 3D model via
	65	! a) pre-run the 1D model
	66	! or
	67	! b) pre-set constant linear profiles
	68	! or
	69	! c) read values of a previous run
	70	!------------------------------------------------------------------------------!
	71
	72	USE arrays_3d
	73	USE averaging
[72]	74	USE cloud_parameters
[1]	75	USE constants
	76	USE control_parameters
	77	USE cpulog
	78	USE indices
	79	USE interfaces
	80	USE model_1d
[51]	81	USE netcdf_control
[1]	82	USE particle_attributes
	83	USE pegrid
	84	USE profil_parameter
	85	USE random_function_mod
	86	USE statistics
	87
	88	IMPLICIT NONE
	89
	90	INTEGER :: i, j, k, sr
	91
	92	INTEGER, DIMENSION(:), ALLOCATABLE :: ngp_2dh_l, ngp_3d_inner_l
	93
[132]	94	INTEGER, DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l, &
	95	ngp_2dh_s_inner_l
[1]	96
[153]	97	REAL :: a, b
	98
[1]	99	REAL, DIMENSION(1:2) :: volume_flow_area_l, volume_flow_initial_l
	100
	101
	102	!
	103	!-- Allocate arrays
	104	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
	105	ngp_3d(0:statistic_regions), &
	106	ngp_3d_inner(0:statistic_regions), &
	107	ngp_3d_inner_l(0:statistic_regions), &
	108	sums_divnew_l(0:statistic_regions), &
	109	sums_divold_l(0:statistic_regions) )
[75]	110	ALLOCATE( rdf(nzb+1:nzt) )
[143]	111	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
[1]	112	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
[132]	113	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
	114	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
[1]	115	rmask(nys-1:nyn+1,nxl-1:nxr+1,0:statistic_regions), &
[87]	116	sums(nzb:nzt+1,pr_palm+max_pr_user), &
	117	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
[1]	118	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
	119	sums_up_fraction_l(10,3,0:statistic_regions), &
[48]	120	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
	121	ts_value(var_ts,0:statistic_regions) )
[1]	122	ALLOCATE( km_damp_x(nxl-1:nxr+1), km_damp_y(nys-1:nyn+1) )
	123
[19]	124	ALLOCATE( rif_1(nys-1:nyn+1,nxl-1:nxr+1), shf_1(nys-1:nyn+1,nxl-1:nxr+1), &
	125	ts(nys-1:nyn+1,nxl-1:nxr+1), tswst_1(nys-1:nyn+1,nxl-1:nxr+1), &
	126	us(nys-1:nyn+1,nxl-1:nxr+1), usws_1(nys-1:nyn+1,nxl-1:nxr+1), &
[102]	127	uswst_1(nys-1:nyn+1,nxl-1:nxr+1), &
	128	vsws_1(nys-1:nyn+1,nxl-1:nxr+1), &
	129	vswst_1(nys-1:nyn+1,nxl-1:nxr+1), z0(nys-1:nyn+1,nxl-1:nxr+1) )
[1]	130
	131	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	132	!
	133	!-- Leapfrog scheme needs two timelevels of diffusion quantities
[19]	134	ALLOCATE( rif_2(nys-1:nyn+1,nxl-1:nxr+1), &
	135	shf_2(nys-1:nyn+1,nxl-1:nxr+1), &
	136	tswst_2(nys-1:nyn+1,nxl-1:nxr+1), &
	137	usws_2(nys-1:nyn+1,nxl-1:nxr+1), &
[102]	138	uswst_2(nys-1:nyn+1,nxl-1:nxr+1), &
	139	vswst_2(nys-1:nyn+1,nxl-1:nxr+1), &
[1]	140	vsws_2(nys-1:nyn+1,nxl-1:nxr+1) )
	141	ENDIF
	142
[75]	143	ALLOCATE( d(nzb+1:nzta,nys:nyna,nxl:nxra), &
	144	e_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	145	e_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	146	e_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	147	kh_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	148	km_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	149	p(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	150	pt_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	151	pt_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	152	pt_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	153	tend(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	154	u_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	155	u_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	156	u_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	157	v_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	158	v_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	159	v_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	160	w_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	161	w_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
[1]	162	w_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	163
	164	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	165	ALLOCATE( kh_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	166	km_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	167	ENDIF
	168
[75]	169	IF ( humidity .OR. passive_scalar ) THEN
[1]	170	!
[75]	171	!-- 2D-humidity/scalar arrays
[1]	172	ALLOCATE ( qs(nys-1:nyn+1,nxl-1:nxr+1), &
[19]	173	qsws_1(nys-1:nyn+1,nxl-1:nxr+1), &
	174	qswst_1(nys-1:nyn+1,nxl-1:nxr+1) )
[1]	175
	176	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
[19]	177	ALLOCATE( qsws_2(nys-1:nyn+1,nxl-1:nxr+1), &
	178	qswst_2(nys-1:nyn+1,nxl-1:nxr+1) )
[1]	179	ENDIF
	180	!
[75]	181	!-- 3D-humidity/scalar arrays
[1]	182	ALLOCATE( q_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	183	q_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	184	q_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	185
	186	!
[75]	187	!-- 3D-arrays needed for humidity only
	188	IF ( humidity ) THEN
[1]	189	ALLOCATE( vpt_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	190
	191	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	192	ALLOCATE( vpt_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	193	ENDIF
	194
	195	IF ( cloud_physics ) THEN
	196	!
	197	!-- Liquid water content
	198	ALLOCATE ( ql_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[72]	199	!
	200	!-- Precipitation amount and rate (only needed if output is switched)
	201	ALLOCATE( precipitation_amount(nys-1:nyn+1,nxl-1:nxr+1), &
	202	precipitation_rate(nys-1:nyn+1,nxl-1:nxr+1) )
[1]	203	ENDIF
	204
	205	IF ( cloud_droplets ) THEN
	206	!
	207	!-- Liquid water content, change in liquid water content,
	208	!-- real volume of particles (with weighting), volume of particles
	209	ALLOCATE ( ql_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	210	ql_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	211	ql_v(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	212	ql_vp(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	213	ENDIF
	214
	215	ENDIF
	216
	217	ENDIF
	218
[94]	219	IF ( ocean ) THEN
[95]	220	ALLOCATE( saswsb_1(nys-1:nyn+1,nxl-1:nxr+1), &
	221	saswst_1(nys-1:nyn+1,nxl-1:nxr+1) )
[96]	222	ALLOCATE( rho_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	223	sa_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	224	sa_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
[94]	225	sa_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[96]	226	rho => rho_1 ! routine calc_mean_profile requires density to be a
	227	! pointer
[108]	228	IF ( humidity_remote ) THEN
	229	ALLOCATE( qswst_remote(nys-1:nyn+1,nxl-1:nxr+1) )
	230	qswst_remote = 0.0
	231	ENDIF
[94]	232	ENDIF
	233
[1]	234	!
	235	!-- 3D-array for storing the dissipation, needed for calculating the sgs
	236	!-- particle velocities
	237	IF ( use_sgs_for_particles ) THEN
	238	ALLOCATE ( diss(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[181]	239	ELSE
	240	ALLOCATE ( diss(2,2,2) ) ! required because diss is used as a
	241	! formal parameter
[1]	242	ENDIF
	243
	244	IF ( dt_dosp /= 9999999.9 ) THEN
	245	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
	246	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
[146]	247	spectrum_x = 0.0
	248	spectrum_y = 0.0
[1]	249	ENDIF
	250
	251	!
[138]	252	!-- 3D-arrays for the leaf area density and the canopy drag coefficient
	253	IF ( plant_canopy ) THEN
	254	ALLOCATE ( lad_s(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	255	lad_u(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	256	lad_v(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	257	lad_w(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	258	cdc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[153]	259
	260	IF ( passive_scalar ) THEN
	261	ALLOCATE ( sls(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	262	sec(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	263	ENDIF
	264
	265	IF ( cthf /= 0.0 ) THEN
	266	ALLOCATE ( lai(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	267	canopy_heat_flux(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	268	ENDIF
	269
[138]	270	ENDIF
	271
	272	!
[51]	273	!-- 4D-array for storing the Rif-values at vertical walls
	274	IF ( topography /= 'flat' ) THEN
	275	ALLOCATE( rif_wall(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1,1:4) )
	276	rif_wall = 0.0
	277	ENDIF
	278
	279	!
	280	!-- Velocities at nzb+1 needed for volume flow control
	281	IF ( conserve_volume_flow ) THEN
	282	ALLOCATE( u_nzb_p1_for_vfc(nys:nyn), v_nzb_p1_for_vfc(nxl:nxr) )
	283	u_nzb_p1_for_vfc = 0.0
	284	v_nzb_p1_for_vfc = 0.0
	285	ENDIF
	286
	287	!
[106]	288	!-- Arrays to store velocity data from t-dt and the phase speeds which
	289	!-- are needed for radiation boundary conditions
[73]	290	IF ( outflow_l ) THEN
[106]	291	ALLOCATE( u_m_l(nzb:nzt+1,nys-1:nyn+1,1:2), &
	292	v_m_l(nzb:nzt+1,nys-1:nyn+1,0:1), &
	293	w_m_l(nzb:nzt+1,nys-1:nyn+1,0:1) )
[73]	294	ENDIF
	295	IF ( outflow_r ) THEN
[106]	296	ALLOCATE( u_m_r(nzb:nzt+1,nys-1:nyn+1,nx-1:nx), &
	297	v_m_r(nzb:nzt+1,nys-1:nyn+1,nx-1:nx), &
	298	w_m_r(nzb:nzt+1,nys-1:nyn+1,nx-1:nx) )
[73]	299	ENDIF
[106]	300	IF ( outflow_l .OR. outflow_r ) THEN
	301	ALLOCATE( c_u(nzb:nzt+1,nys-1:nyn+1), c_v(nzb:nzt+1,nys-1:nyn+1), &
	302	c_w(nzb:nzt+1,nys-1:nyn+1) )
	303	ENDIF
[73]	304	IF ( outflow_s ) THEN
[106]	305	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxl-1:nxr+1), &
	306	v_m_s(nzb:nzt+1,1:2,nxl-1:nxr+1), &
	307	w_m_s(nzb:nzt+1,0:1,nxl-1:nxr+1) )
[73]	308	ENDIF
	309	IF ( outflow_n ) THEN
[106]	310	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxl-1:nxr+1), &
	311	v_m_n(nzb:nzt+1,ny-1:ny,nxl-1:nxr+1), &
	312	w_m_n(nzb:nzt+1,ny-1:ny,nxl-1:nxr+1) )
[73]	313	ENDIF
[106]	314	IF ( outflow_s .OR. outflow_n ) THEN
	315	ALLOCATE( c_u(nzb:nzt+1,nxl-1:nxr+1), c_v(nzb:nzt+1,nxl-1:nxr+1), &
	316	c_w(nzb:nzt+1,nxl-1:nxr+1) )
	317	ENDIF
[73]	318
	319	!
[1]	320	!-- Initial assignment of the pointers
	321	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	322
[19]	323	rif_m => rif_1; rif => rif_2
	324	shf_m => shf_1; shf => shf_2
	325	tswst_m => tswst_1; tswst => tswst_2
	326	usws_m => usws_1; usws => usws_2
[102]	327	uswst_m => uswst_1; uswst => uswst_2
[19]	328	vsws_m => vsws_1; vsws => vsws_2
[102]	329	vswst_m => vswst_1; vswst => vswst_2
[1]	330	e_m => e_1; e => e_2; e_p => e_3; te_m => e_3
	331	kh_m => kh_1; kh => kh_2
	332	km_m => km_1; km => km_2
	333	pt_m => pt_1; pt => pt_2; pt_p => pt_3; tpt_m => pt_3
	334	u_m => u_1; u => u_2; u_p => u_3; tu_m => u_3
	335	v_m => v_1; v => v_2; v_p => v_3; tv_m => v_3
	336	w_m => w_1; w => w_2; w_p => w_3; tw_m => w_3
	337
[75]	338	IF ( humidity .OR. passive_scalar ) THEN
[19]	339	qsws_m => qsws_1; qsws => qsws_2
	340	qswst_m => qswst_1; qswst => qswst_2
[1]	341	q_m => q_1; q => q_2; q_p => q_3; tq_m => q_3
[75]	342	IF ( humidity ) vpt_m => vpt_1; vpt => vpt_2
[1]	343	IF ( cloud_physics ) ql => ql_1
	344	IF ( cloud_droplets ) THEN
	345	ql => ql_1
	346	ql_c => ql_2
	347	ENDIF
	348	ENDIF
	349
	350	ELSE
	351
[19]	352	rif => rif_1
	353	shf => shf_1
	354	tswst => tswst_1
	355	usws => usws_1
[102]	356	uswst => uswst_1
[19]	357	vsws => vsws_1
[102]	358	vswst => vswst_1
[19]	359	e => e_1; e_p => e_2; te_m => e_3; e_m => e_3
	360	kh => kh_1
	361	km => km_1
	362	pt => pt_1; pt_p => pt_2; tpt_m => pt_3; pt_m => pt_3
	363	u => u_1; u_p => u_2; tu_m => u_3; u_m => u_3
	364	v => v_1; v_p => v_2; tv_m => v_3; v_m => v_3
	365	w => w_1; w_p => w_2; tw_m => w_3; w_m => w_3
[1]	366
[75]	367	IF ( humidity .OR. passive_scalar ) THEN
[1]	368	qsws => qsws_1
[19]	369	qswst => qswst_1
[94]	370	q => q_1; q_p => q_2; tq_m => q_3; q_m => q_3
[75]	371	IF ( humidity ) vpt => vpt_1
[1]	372	IF ( cloud_physics ) ql => ql_1
	373	IF ( cloud_droplets ) THEN
	374	ql => ql_1
	375	ql_c => ql_2
	376	ENDIF
	377	ENDIF
	378
[94]	379	IF ( ocean ) THEN
[95]	380	saswsb => saswsb_1
[94]	381	saswst => saswst_1
	382	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
	383	ENDIF
	384
[1]	385	ENDIF
	386
	387	!
	388	!-- Initialize model variables
[147]	389	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
	390	TRIM( initializing_actions ) /= 'read_data_for_recycling' ) THEN
[1]	391	!
	392	!-- First model run of a possible job queue.
	393	!-- Initial profiles of the variables must be computes.
	394	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
	395	!
	396	!-- Use solutions of the 1D model as initial profiles,
	397	!-- start 1D model
	398	CALL init_1d_model
	399	!
	400	!-- Transfer initial profiles to the arrays of the 3D model
	401	DO i = nxl-1, nxr+1
	402	DO j = nys-1, nyn+1
	403	e(:,j,i) = e1d
	404	kh(:,j,i) = kh1d
	405	km(:,j,i) = km1d
	406	pt(:,j,i) = pt_init
	407	u(:,j,i) = u1d
	408	v(:,j,i) = v1d
	409	ENDDO
	410	ENDDO
	411
[75]	412	IF ( humidity .OR. passive_scalar ) THEN
[1]	413	DO i = nxl-1, nxr+1
	414	DO j = nys-1, nyn+1
	415	q(:,j,i) = q_init
	416	ENDDO
	417	ENDDO
	418	ENDIF
	419
	420	IF ( .NOT. constant_diffusion ) THEN
	421	DO i = nxl-1, nxr+1
	422	DO j = nys-1, nyn+1
	423	e(:,j,i) = e1d
	424	ENDDO
	425	ENDDO
	426	!
	427	!-- Store initial profiles for output purposes etc.
	428	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	429
	430	IF ( prandtl_layer ) THEN
	431	rif = rif1d(nzb+1)
	432	ts = 0.0 ! could actually be computed more accurately in the
	433	! 1D model. Update when opportunity arises.
	434	us = us1d
	435	usws = usws1d
	436	vsws = vsws1d
	437	ELSE
	438	ts = 0.0 ! must be set, because used in
	439	rif = 0.0 ! flowste
	440	us = 0.0
	441	usws = 0.0
	442	vsws = 0.0
	443	ENDIF
	444
	445	ELSE
	446	e = 0.0 ! must be set, because used in
	447	rif = 0.0 ! flowste
	448	ts = 0.0
	449	us = 0.0
	450	usws = 0.0
	451	vsws = 0.0
	452	ENDIF
[102]	453	uswst = top_momentumflux_u
	454	vswst = top_momentumflux_v
[1]	455
	456	!
	457	!-- In every case qs = 0.0 (see also pt)
	458	!-- This could actually be computed more accurately in the 1D model.
	459	!-- Update when opportunity arises!
[75]	460	IF ( humidity .OR. passive_scalar ) qs = 0.0
[1]	461
	462	!
	463	!-- inside buildings set velocities back to zero
	464	IF ( topography /= 'flat' ) THEN
	465	DO i = nxl-1, nxr+1
	466	DO j = nys-1, nyn+1
	467	u(nzb:nzb_u_inner(j,i),j,i) = 0.0
	468	v(nzb:nzb_v_inner(j,i),j,i) = 0.0
	469	ENDDO
	470	ENDDO
[132]	471	IF ( conserve_volume_flow ) THEN
	472	IF ( nxr == nx ) THEN
	473	DO j = nys, nyn
	474	DO k = nzb + 1, nzb_u_inner(j,nx)
	475	u_nzb_p1_for_vfc(j) = u1d(k) * dzu(k)
	476	ENDDO
	477	ENDDO
	478	ENDIF
	479	IF ( nyn == ny ) THEN
	480	DO i = nxl, nxr
	481	DO k = nzb + 1, nzb_v_inner(ny,i)
	482	v_nzb_p1_for_vfc(i) = v1d(k) * dzu(k)
	483	ENDDO
	484	ENDDO
	485	ENDIF
	486	ENDIF
[1]	487	!
	488	!-- WARNING: The extra boundary conditions set after running the
	489	!-- ------- 1D model impose an error on the divergence one layer
	490	!-- below the topography; need to correct later
	491	!-- ATTENTION: Provisional correction for Piacsek & Williams
	492	!-- --------- advection scheme: keep u and v zero one layer below
	493	!-- the topography.
	494	IF ( ibc_uv_b == 0 ) THEN
	495	!
	496	!-- Satisfying the Dirichlet condition with an extra layer below
	497	!-- the surface where the u and v component change their sign.
	498	DO i = nxl-1, nxr+1
	499	DO j = nys-1, nyn+1
	500	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = -u(1,j,i)
	501	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = -v(1,j,i)
	502	ENDDO
	503	ENDDO
	504
	505	ELSE
	506	!
	507	!-- Neumann condition
	508	DO i = nxl-1, nxr+1
	509	DO j = nys-1, nyn+1
	510	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
	511	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
	512	ENDDO
	513	ENDDO
	514
	515	ENDIF
	516
	517	ENDIF
	518
	519	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
	520	THEN
	521	!
	522	!-- Use constructed initial profiles (velocity constant with height,
	523	!-- temperature profile with constant gradient)
	524	DO i = nxl-1, nxr+1
	525	DO j = nys-1, nyn+1
	526	pt(:,j,i) = pt_init
	527	u(:,j,i) = u_init
	528	v(:,j,i) = v_init
	529	ENDDO
	530	ENDDO
[75]	531
[1]	532	!
[51]	533	!-- Set initial horizontal velocities at the lowest computational grid levels
	534	!-- to zero in order to avoid too small time steps caused by the diffusion
[1]	535	!-- limit in the initial phase of a run (at k=1, dz/2 occurs in the
[51]	536	!-- limiting formula!). The original values are stored to be later used for
	537	!-- volume flow control.
[1]	538	DO i = nxl-1, nxr+1
	539	DO j = nys-1, nyn+1
	540	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0
	541	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0
	542	ENDDO
	543	ENDDO
[51]	544	IF ( conserve_volume_flow ) THEN
	545	IF ( nxr == nx ) THEN
	546	DO j = nys, nyn
[132]	547	DO k = nzb + 1, nzb_u_inner(j,nx) + 1
	548	u_nzb_p1_for_vfc(j) = u_init(k) * dzu(k)
	549	ENDDO
[51]	550	ENDDO
	551	ENDIF
	552	IF ( nyn == ny ) THEN
	553	DO i = nxl, nxr
[132]	554	DO k = nzb + 1, nzb_v_inner(ny,i) + 1
	555	v_nzb_p1_for_vfc(i) = v_init(k) * dzu(k)
	556	ENDDO
[51]	557	ENDDO
	558	ENDIF
	559	ENDIF
[1]	560
[75]	561	IF ( humidity .OR. passive_scalar ) THEN
[1]	562	DO i = nxl-1, nxr+1
	563	DO j = nys-1, nyn+1
	564	q(:,j,i) = q_init
	565	ENDDO
	566	ENDDO
	567	ENDIF
	568
[94]	569	IF ( ocean ) THEN
	570	DO i = nxl-1, nxr+1
	571	DO j = nys-1, nyn+1
	572	sa(:,j,i) = sa_init
	573	ENDDO
	574	ENDDO
	575	ENDIF
[1]	576
	577	IF ( constant_diffusion ) THEN
	578	km = km_constant
	579	kh = km / prandtl_number
[108]	580	e = 0.0
	581	ELSEIF ( e_init > 0.0 ) THEN
	582	DO k = nzb+1, nzt
	583	km(k,:,:) = 0.1 * l_grid(k) * SQRT( e_init )
	584	ENDDO
	585	km(nzb,:,:) = km(nzb+1,:,:)
	586	km(nzt+1,:,:) = km(nzt,:,:)
	587	kh = km / prandtl_number
	588	e = e_init
[1]	589	ELSE
[108]	590	IF ( .NOT. ocean ) THEN
	591	kh = 0.01 ! there must exist an initial diffusion, because
	592	km = 0.01 ! otherwise no TKE would be produced by the
	593	! production terms, as long as not yet
	594	! e = (u/cm)*2 at k=nzb+1
	595	ELSE
	596	kh = 0.00001
	597	km = 0.00001
	598	ENDIF
	599	e = 0.0
[1]	600	ENDIF
[102]	601	rif = 0.0
	602	ts = 0.0
	603	us = 0.0
	604	usws = 0.0
	605	uswst = top_momentumflux_u
	606	vsws = 0.0
	607	vswst = top_momentumflux_v
[75]	608	IF ( humidity .OR. passive_scalar ) qs = 0.0
[1]	609
	610	!
	611	!-- Compute initial temperature field and other constants used in case
	612	!-- of a sloping surface
	613	IF ( sloping_surface ) CALL init_slope
	614
[46]	615	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
	616	THEN
	617	!
	618	!-- Initialization will completely be done by the user
	619	CALL user_init_3d_model
	620
[1]	621	ENDIF
	622
	623	!
[151]	624	!-- Apply channel flow boundary condition
[132]	625	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
	626
	627	u(nzt+1,:,:) = 0.0
	628	v(nzt+1,:,:) = 0.0
	629
[151]	630	!-- For the Dirichlet condition to be correctly applied at the top, set
[132]	631	!-- ug and vg to zero there
	632	ug(nzt+1) = 0.0
	633	vg(nzt+1) = 0.0
	634
	635	ENDIF
	636
	637	!
[1]	638	!-- Calculate virtual potential temperature
[75]	639	IF ( humidity ) vpt = pt * ( 1.0 + 0.61 * q )
[1]	640
	641	!
	642	!-- Store initial profiles for output purposes etc.
	643	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	644	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
	645	IF ( ibc_uv_b == 0 ) THEN
	646	hom(nzb,1,5,:) = -hom(nzb+1,1,5,:) ! due to satisfying the Dirichlet
	647	hom(nzb,1,6,:) = -hom(nzb+1,1,6,:) ! condition with an extra layer
	648	! below the surface where the u and v component change their sign
	649	ENDIF
	650	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	651	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
	652	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
	653
[97]	654	IF ( ocean ) THEN
	655	!
	656	!-- Store initial salinity profile
	657	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
	658	ENDIF
[1]	659
[75]	660	IF ( humidity ) THEN
[1]	661	!
	662	!-- Store initial profile of total water content, virtual potential
	663	!-- temperature
	664	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	665	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
	666	IF ( cloud_physics .OR. cloud_droplets ) THEN
	667	!
	668	!-- Store initial profile of specific humidity and potential
	669	!-- temperature
	670	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	671	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	672	ENDIF
	673	ENDIF
	674
	675	IF ( passive_scalar ) THEN
	676	!
	677	!-- Store initial scalar profile
	678	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	679	ENDIF
	680
	681	!
[19]	682	!-- Initialize fluxes at bottom surface
[1]	683	IF ( use_surface_fluxes ) THEN
	684
	685	IF ( constant_heatflux ) THEN
	686	!
	687	!-- Heat flux is prescribed
	688	IF ( random_heatflux ) THEN
	689	CALL disturb_heatflux
	690	ELSE
	691	shf = surface_heatflux
	692	!
	693	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
	694	IF ( TRIM( topography ) /= 'flat' ) THEN
	695	DO i = nxl-1, nxr+1
	696	DO j = nys-1, nyn+1
	697	IF ( nzb_s_inner(j,i) /= 0 ) THEN
	698	shf(j,i) = wall_heatflux(0)
	699	ENDIF
	700	ENDDO
	701	ENDDO
	702	ENDIF
	703	ENDIF
	704	IF ( ASSOCIATED( shf_m ) ) shf_m = shf
	705	ENDIF
	706
	707	!
	708	!-- Determine the near-surface water flux
[75]	709	IF ( humidity .OR. passive_scalar ) THEN
[1]	710	IF ( constant_waterflux ) THEN
	711	qsws = surface_waterflux
	712	IF ( ASSOCIATED( qsws_m ) ) qsws_m = qsws
	713	ENDIF
	714	ENDIF
	715
	716	ENDIF
	717
	718	!
[19]	719	!-- Initialize fluxes at top surface
[94]	720	!-- Currently, only the heatflux and salinity flux can be prescribed.
	721	!-- The latent flux is zero in this case!
[19]	722	IF ( use_top_fluxes ) THEN
	723
	724	IF ( constant_top_heatflux ) THEN
	725	!
	726	!-- Heat flux is prescribed
	727	tswst = top_heatflux
	728	IF ( ASSOCIATED( tswst_m ) ) tswst_m = tswst
	729
[75]	730	IF ( humidity .OR. passive_scalar ) THEN
[19]	731	qswst = 0.0
	732	IF ( ASSOCIATED( qswst_m ) ) qswst_m = qswst
	733	ENDIF
[94]	734
	735	IF ( ocean ) THEN
[95]	736	saswsb = bottom_salinityflux
[94]	737	saswst = top_salinityflux
	738	ENDIF
[102]	739	ENDIF
[19]	740
[102]	741	!
	742	!-- Initialization in case of a coupled model run
	743	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
	744	tswst = 0.0
	745	IF ( ASSOCIATED( tswst_m ) ) tswst_m = tswst
	746	ENDIF
	747
[19]	748	ENDIF
	749
	750	!
[1]	751	!-- Initialize Prandtl layer quantities
	752	IF ( prandtl_layer ) THEN
	753
	754	z0 = roughness_length
	755
	756	IF ( .NOT. constant_heatflux ) THEN
	757	!
	758	!-- Surface temperature is prescribed. Here the heat flux cannot be
	759	!-- simply estimated, because therefore rif, u* and theta* would have
	760	!-- to be computed by iteration. This is why the heat flux is assumed
	761	!-- to be zero before the first time step. It approaches its correct
	762	!-- value in the course of the first few time steps.
	763	shf = 0.0
	764	IF ( ASSOCIATED( shf_m ) ) shf_m = 0.0
	765	ENDIF
	766
[75]	767	IF ( humidity .OR. passive_scalar ) THEN
[1]	768	IF ( .NOT. constant_waterflux ) THEN
	769	qsws = 0.0
	770	IF ( ASSOCIATED( qsws_m ) ) qsws_m = 0.0
	771	ENDIF
	772	ENDIF
	773
	774	ENDIF
	775
	776	!
[152]	777	!-- Calculate the initial volume flow at the right and north boundary
	778	IF ( conserve_volume_flow ) THEN
	779
	780	volume_flow_initial_l = 0.0
	781	volume_flow_area_l = 0.0
	782
	783	IF ( nxr == nx ) THEN
	784	DO j = nys, nyn
	785	DO k = nzb_2d(j,nx) + 1, nzt
	786	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	787	u(k,j,nx) * dzu(k)
	788	volume_flow_area_l(1) = volume_flow_area_l(1) + dzu(k)
	789	ENDDO
	790	!
	791	!-- Correction if velocity at nzb+1 has been set zero further above
	792	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	793	u_nzb_p1_for_vfc(j)
	794	ENDDO
	795	ENDIF
	796
	797	IF ( nyn == ny ) THEN
	798	DO i = nxl, nxr
	799	DO k = nzb_2d(ny,i) + 1, nzt
	800	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	801	v(k,ny,i) * dzu(k)
	802	volume_flow_area_l(2) = volume_flow_area_l(2) + dzu(k)
	803	ENDDO
	804	!
	805	!-- Correction if velocity at nzb+1 has been set zero further above
	806	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	807	v_nzb_p1_for_vfc(i)
	808	ENDDO
	809	ENDIF
	810
	811	#if defined( __parallel )
	812	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	813	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	814	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	815	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	816	#else
	817	volume_flow_initial = volume_flow_initial_l
	818	volume_flow_area = volume_flow_area_l
	819	#endif
	820	ENDIF
	821
	822	!
[1]	823	!-- For the moment, perturbation pressure and vertical velocity are zero
	824	p = 0.0; w = 0.0
	825
	826	!
	827	!-- Initialize array sums (must be defined in first call of pres)
	828	sums = 0.0
	829
	830	!
[72]	831	!-- Treating cloud physics, liquid water content and precipitation amount
	832	!-- are zero at beginning of the simulation
	833	IF ( cloud_physics ) THEN
	834	ql = 0.0
	835	IF ( precipitation ) precipitation_amount = 0.0
	836	ENDIF
[1]	837
	838	!
	839	!-- Impose vortex with vertical axis on the initial velocity profile
	840	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	841	CALL init_rankine
	842	ENDIF
	843
	844	!
	845	!-- Impose temperature anomaly (advection test only)
	846	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
	847	CALL init_pt_anomaly
	848	ENDIF
	849
	850	!
	851	!-- If required, change the surface temperature at the start of the 3D run
	852	IF ( pt_surface_initial_change /= 0.0 ) THEN
	853	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	854	ENDIF
	855
	856	!
	857	!-- If required, change the surface humidity/scalar at the start of the 3D
	858	!-- run
[75]	859	IF ( ( humidity .OR. passive_scalar ) .AND. &
[1]	860	q_surface_initial_change /= 0.0 ) THEN
	861	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
	862	ENDIF
	863
	864	!
	865	!-- Initialize the random number generator (from numerical recipes)
	866	CALL random_function_ini
	867
	868	!
	869	!-- Impose random perturbation on the horizontal velocity field and then
	870	!-- remove the divergences from the velocity field
	871	IF ( create_disturbances ) THEN
[75]	872	CALL disturb_field( nzb_u_inner, tend, u )
	873	CALL disturb_field( nzb_v_inner, tend, v )
[1]	874	n_sor = nsor_ini
	875	CALL pres
	876	n_sor = nsor
	877	ENDIF
	878
	879	!
	880	!-- Once again set the perturbation pressure explicitly to zero in order to
	881	!-- assure that it does not generate any divergences in the first time step.
	882	!-- At t=0 the velocity field is free of divergence (as constructed above).
	883	!-- Divergences being created during a time step are not yet known and thus
	884	!-- cannot be corrected during the time step yet.
	885	p = 0.0
	886
	887	!
	888	!-- Initialize old and new time levels.
	889	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	890	e_m = e; pt_m = pt; u_m = u; v_m = v; w_m = w; kh_m = kh; km_m = km
	891	ELSE
	892	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
	893	ENDIF
	894	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
	895
[75]	896	IF ( humidity .OR. passive_scalar ) THEN
[1]	897	IF ( ASSOCIATED( q_m ) ) q_m = q
	898	IF ( timestep_scheme(1:5) == 'runge' ) tq_m = 0.0
	899	q_p = q
[75]	900	IF ( humidity .AND. ASSOCIATED( vpt_m ) ) vpt_m = vpt
[1]	901	ENDIF
	902
[94]	903	IF ( ocean ) THEN
	904	tsa_m = 0.0
	905	sa_p = sa
	906	ENDIF
	907
[73]	908
[147]	909	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
	910	TRIM( initializing_actions ) == 'read_data_for_recycling' ) &
[1]	911	THEN
	912	!
[147]	913	!-- When reading data for initializing the recycling method, first read
	914	!-- some of the global variables from restart file
	915	IF ( TRIM( initializing_actions ) == 'read_data_for_recycling' ) THEN
[151]	916
[147]	917	WRITE (9,*) 'before read_parts_of_var_list'
	918	CALL local_flush( 9 )
	919	CALL read_parts_of_var_list
	920	WRITE (9,*) 'after read_parts_of_var_list'
	921	CALL local_flush( 9 )
	922	CALL close_file( 13 )
[151]	923	!
	924	!-- Store temporally and horizontally averaged vertical profiles to be
	925	!-- used as mean inflow profiles
	926	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,5) )
	927
	928	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
	929	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
	930	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
	931	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
	932
	933	!
	934	!-- Use these mean profiles for the inflow (provided that Dirichlet
	935	!-- conditions are used)
	936	IF ( inflow_l ) THEN
	937	DO j = nys-1, nyn+1
	938	DO k = nzb, nzt+1
	939	u(k,j,-1) = mean_inflow_profiles(k,1)
	940	v(k,j,-1) = mean_inflow_profiles(k,2)
	941	w(k,j,-1) = 0.0
	942	pt(k,j,-1) = mean_inflow_profiles(k,4)
	943	e(k,j,-1) = mean_inflow_profiles(k,5)
	944	ENDDO
	945	ENDDO
	946	ENDIF
	947
	948	!
	949	!-- Calculate the damping factors to be used at the inflow. For a
	950	!-- turbulent inflow the turbulent fluctuations have to be limited
	951	!-- vertically because otherwise the turbulent inflow layer will grow
	952	!-- in time.
	953	IF ( inflow_damping_height == 9999999.9 ) THEN
	954	!
	955	!-- Default: use the inversion height calculated by the prerun
	956	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
	957
	958	ENDIF
	959
	960	IF ( inflow_damping_width == 9999999.9 ) THEN
	961	!
	962	!-- Default for the transition range: one tenth of the undamped layer
	963	inflow_damping_width = 0.1 * inflow_damping_height
	964
	965	ENDIF
	966
	967	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
	968
	969	DO k = nzb, nzt+1
	970
	971	IF ( zu(k) <= inflow_damping_height ) THEN
	972	inflow_damping_factor(k) = 1.0
	973	ELSEIF ( zu(k) <= inflow_damping_height + inflow_damping_width ) &
	974	THEN
	975	inflow_damping_factor(k) = 1.0 - &
	976	( zu(k) - inflow_damping_height ) / &
	977	inflow_damping_width
	978	ELSE
	979	inflow_damping_factor(k) = 0.0
	980	ENDIF
	981
	982	ENDDO
	983
[147]	984	ENDIF
	985
[152]	986	!
[163]	987	!-- Read binary data from restart file
	988	WRITE (9,*) 'before read_3d_binary'
	989	CALL local_flush( 9 )
	990	CALL read_3d_binary
	991	WRITE (9,*) 'after read_3d_binary'
	992	CALL local_flush( 9 )
	993
	994	!
[152]	995	!-- Calculate the initial volume flow at the right and north boundary
[163]	996	IF ( conserve_volume_flow .AND. &
	997	TRIM( initializing_actions ) == 'read_data_for_recycling' ) THEN
[151]	998
[152]	999	volume_flow_initial_l = 0.0
	1000	volume_flow_area_l = 0.0
	1001
	1002	IF ( nxr == nx ) THEN
	1003	DO j = nys, nyn
	1004	DO k = nzb_2d(j,nx) + 1, nzt
	1005	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1006	u(k,j,nx) * dzu(k)
	1007	volume_flow_area_l(1) = volume_flow_area_l(1) + dzu(k)
	1008	ENDDO
[147]	1009	!
[152]	1010	!-- Correction if velocity at nzb+1 has been set zero further above
	1011	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1012	u_nzb_p1_for_vfc(j)
	1013	ENDDO
	1014	ENDIF
	1015
	1016	IF ( nyn == ny ) THEN
	1017	DO i = nxl, nxr
	1018	DO k = nzb_2d(ny,i) + 1, nzt
	1019	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1020	v(k,ny,i) * dzu(k)
	1021	volume_flow_area_l(2) = volume_flow_area_l(2) + dzu(k)
	1022	ENDDO
	1023	!
	1024	!-- Correction if velocity at nzb+1 has been set zero further above
	1025	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1026	v_nzb_p1_for_vfc(i)
	1027	ENDDO
	1028	ENDIF
	1029
	1030	#if defined( __parallel )
	1031	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1032	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1033	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1034	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1035	#else
	1036	volume_flow_initial = volume_flow_initial_l
	1037	volume_flow_area = volume_flow_area_l
	1038	#endif
	1039	ENDIF
	1040
	1041
	1042	!
[1]	1043	!-- Calculate initial temperature field and other constants used in case
	1044	!-- of a sloping surface
	1045	IF ( sloping_surface ) CALL init_slope
	1046
	1047	!
	1048	!-- Initialize new time levels (only done in order to set boundary values
	1049	!-- including ghost points)
	1050	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
[75]	1051	IF ( humidity .OR. passive_scalar ) q_p = q
[94]	1052	IF ( ocean ) sa_p = sa
[1]	1053
[181]	1054	!
	1055	!-- Allthough tendency arrays are set in prognostic_equations, they have
	1056	!-- have to be predefined here because they are used (but multiplied with 0)
	1057	!-- there before they are set.
	1058	IF ( timestep_scheme(1:5) == 'runge' ) THEN
	1059	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
	1060	IF ( humidity .OR. passive_scalar ) tq_m = 0.0
	1061	IF ( ocean ) tsa_m = 0.0
	1062	ENDIF
	1063
[1]	1064	ELSE
	1065	!
	1066	!-- Actually this part of the programm should not be reached
	1067	IF ( myid == 0 ) PRINT*,'+++ init_3d_model: unknown initializing ', &
	1068	'problem'
	1069	CALL local_stop
	1070	ENDIF
	1071
[151]	1072
	1073	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
[1]	1074	!
[151]	1075	!-- Initialize old timelevels needed for radiation boundary conditions
	1076	IF ( outflow_l ) THEN
	1077	u_m_l(:,:,:) = u(:,:,1:2)
	1078	v_m_l(:,:,:) = v(:,:,0:1)
	1079	w_m_l(:,:,:) = w(:,:,0:1)
	1080	ENDIF
	1081	IF ( outflow_r ) THEN
	1082	u_m_r(:,:,:) = u(:,:,nx-1:nx)
	1083	v_m_r(:,:,:) = v(:,:,nx-1:nx)
	1084	w_m_r(:,:,:) = w(:,:,nx-1:nx)
	1085	ENDIF
	1086	IF ( outflow_s ) THEN
	1087	u_m_s(:,:,:) = u(:,0:1,:)
	1088	v_m_s(:,:,:) = v(:,1:2,:)
	1089	w_m_s(:,:,:) = w(:,0:1,:)
	1090	ENDIF
	1091	IF ( outflow_n ) THEN
	1092	u_m_n(:,:,:) = u(:,ny-1:ny,:)
	1093	v_m_n(:,:,:) = v(:,ny-1:ny,:)
	1094	w_m_n(:,:,:) = w(:,ny-1:ny,:)
	1095	ENDIF
	1096
	1097	ENDIF
	1098
	1099	!
[138]	1100	!-- Initialization of the leaf area density
	1101	IF ( plant_canopy ) THEN
	1102
	1103	SELECT CASE ( TRIM( canopy_mode ) )
	1104
	1105	CASE( 'block' )
	1106
	1107	DO i = nxl-1, nxr+1
	1108	DO j = nys-1, nyn+1
	1109	lad_s(:,j,i) = lad(:)
	1110	cdc(:,j,i) = drag_coefficient
[153]	1111	IF ( passive_scalar ) THEN
	1112	sls(:,j,i) = leaf_surface_concentration
	1113	sec(:,j,i) = scalar_exchange_coefficient
	1114	ENDIF
[138]	1115	ENDDO
	1116	ENDDO
	1117
	1118	CASE DEFAULT
	1119
	1120	!
	1121	!-- The DEFAULT case is reached either if the parameter
	1122	!-- canopy mode contains a wrong character string or if the
	1123	!-- user has coded a special case in the user interface.
	1124	!-- There, the subroutine user_init_plant_canopy checks
	1125	!-- which of these two conditions applies.
	1126	CALL user_init_plant_canopy
	1127
	1128	END SELECT
	1129
	1130	CALL exchange_horiz( lad_s )
	1131	CALL exchange_horiz( cdc )
	1132
[153]	1133	IF ( passive_scalar ) THEN
	1134	CALL exchange_horiz( sls )
	1135	CALL exchange_horiz( sec )
	1136	ENDIF
	1137
	1138	!
	1139	!-- Sharp boundaries of the plant canopy in horizontal directions
	1140	!-- In vertical direction the interpolation is retained, as the leaf
	1141	!-- area density is initialised by prescribing a vertical profile
	1142	!-- consisting of piecewise linear segments. The upper boundary
	1143	!-- of the plant canopy is now defined by lad_w(pch_index,:,:) = 0.0.
	1144
[138]	1145	DO i = nxl, nxr
	1146	DO j = nys, nyn
	1147	DO k = nzb, nzt+1
[153]	1148	IF ( lad_s(k,j,i) > 0.0 ) THEN
	1149	lad_u(k,j,i) = lad_s(k,j,i)
	1150	lad_u(k,j,i+1) = lad_s(k,j,i)
	1151	lad_v(k,j,i) = lad_s(k,j,i)
	1152	lad_v(k,j+1,i) = lad_s(k,j,i)
	1153	ENDIF
[138]	1154	ENDDO
	1155	DO k = nzb, nzt
	1156	lad_w(k,j,i) = 0.5 * ( lad_s(k+1,j,i) + lad_s(k,j,i) )
	1157	ENDDO
	1158	ENDDO
	1159	ENDDO
	1160
[153]	1161	lad_w(pch_index,:,:) = 0.0
	1162	lad_w(nzt+1,:,:) = lad_w(nzt,:,:)
[138]	1163
	1164	CALL exchange_horiz( lad_u )
	1165	CALL exchange_horiz( lad_v )
	1166	CALL exchange_horiz( lad_w )
[153]	1167
	1168	!
	1169	!-- Initialisation of the canopy heat source distribution
	1170	IF ( cthf /= 0.0 ) THEN
	1171	!
	1172	!-- Piecewise evaluation of the leaf area index by
	1173	!-- integration of the leaf area density
	1174	lai(:,:,:) = 0.0
	1175	DO i = nxl-1, nxr+1
	1176	DO j = nys-1, nyn+1
	1177	DO k = pch_index-1, 0, -1
	1178	lai(k,j,i) = lai(k+1,j,i) + &
	1179	( 0.5 * ( lad_w(k+1,j,i) + &
	1180	lad_s(k+1,j,i) ) * &
	1181	( zw(k+1) - zu(k+1) ) ) + &
	1182	( 0.5 * ( lad_w(k,j,i) + &
	1183	lad_s(k+1,j,i) ) * &
	1184	( zu(k+1) - zw(k) ) )
	1185	ENDDO
	1186	ENDDO
	1187	ENDDO
	1188
	1189	!
	1190	!-- Evaluation of the upward kinematic vertical heat flux within the
	1191	!-- canopy
	1192	DO i = nxl-1, nxr+1
	1193	DO j = nys-1, nyn+1
	1194	DO k = 0, pch_index
	1195	canopy_heat_flux(k,j,i) = cthf * &
	1196	exp( -0.6 * lai(k,j,i) )
	1197	ENDDO
	1198	ENDDO
	1199	ENDDO
	1200
	1201	!
	1202	!-- The near surface heat flux is derived from the heat flux
	1203	!-- distribution within the canopy
	1204	shf(:,:) = canopy_heat_flux(0,:,:)
	1205
	1206	IF ( ASSOCIATED( shf_m ) ) shf_m = shf
	1207
	1208	ENDIF
	1209
[138]	1210	ENDIF
	1211
	1212	!
[1]	1213	!-- If required, initialize dvrp-software
	1214	IF ( dt_dvrp /= 9999999.9 ) CALL init_dvrp
	1215
[96]	1216	IF ( ocean ) THEN
[1]	1217	!
[96]	1218	!-- Initialize quantities needed for the ocean model
	1219	CALL init_ocean
	1220	ELSE
	1221	!
	1222	!-- Initialize quantities for handling cloud physics
	1223	!-- This routine must be called before init_particles, because
	1224	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
	1225	!-- init_particles) is not defined.
	1226	CALL init_cloud_physics
	1227	ENDIF
[1]	1228
	1229	!
	1230	!-- If required, initialize particles
[63]	1231	IF ( particle_advection ) CALL init_particles
[1]	1232
	1233	!
	1234	!-- Initialize quantities for special advections schemes
	1235	CALL init_advec
	1236
	1237	!
	1238	!-- Initialize Rayleigh damping factors
	1239	rdf = 0.0
	1240	IF ( rayleigh_damping_factor /= 0.0 ) THEN
[108]	1241	IF ( .NOT. ocean ) THEN
	1242	DO k = nzb+1, nzt
	1243	IF ( zu(k) >= rayleigh_damping_height ) THEN
	1244	rdf(k) = rayleigh_damping_factor * &
[1]	1245	( SIN( pi * 0.5 * ( zu(k) - rayleigh_damping_height ) &
	1246	/ ( zu(nzt) - rayleigh_damping_height ) )&
	1247	)**2
[108]	1248	ENDIF
	1249	ENDDO
	1250	ELSE
	1251	DO k = nzt, nzb+1, -1
	1252	IF ( zu(k) <= rayleigh_damping_height ) THEN
	1253	rdf(k) = rayleigh_damping_factor * &
	1254	( SIN( pi * 0.5 * ( rayleigh_damping_height - zu(k) ) &
	1255	/ ( rayleigh_damping_height - zu(nzb+1)))&
	1256	)**2
	1257	ENDIF
	1258	ENDDO
	1259	ENDIF
[1]	1260	ENDIF
	1261
	1262	!
	1263	!-- Initialize diffusivities used within the outflow damping layer in case of
	1264	!-- non-cyclic lateral boundaries. A linear increase is assumed over the first
	1265	!-- half of the width of the damping layer
[73]	1266	IF ( bc_lr == 'dirichlet/radiation' ) THEN
[1]	1267
	1268	DO i = nxl-1, nxr+1
[73]	1269	IF ( i >= nx - outflow_damping_width ) THEN
	1270	km_damp_x(i) = km_damp_max * MIN( 1.0, &
	1271	( i - ( nx - outflow_damping_width ) ) / &
	1272	REAL( outflow_damping_width/2 ) &
	1273	)
	1274	ELSE
	1275	km_damp_x(i) = 0.0
	1276	ENDIF
	1277	ENDDO
[1]	1278
[73]	1279	ELSEIF ( bc_lr == 'radiation/dirichlet' ) THEN
[1]	1280
[73]	1281	DO i = nxl-1, nxr+1
	1282	IF ( i <= outflow_damping_width ) THEN
	1283	km_damp_x(i) = km_damp_max * MIN( 1.0, &
	1284	( outflow_damping_width - i ) / &
	1285	REAL( outflow_damping_width/2 ) &
	1286	)
	1287	ELSE
	1288	km_damp_x(i) = 0.0
	1289	ENDIF
	1290	ENDDO
[1]	1291
[73]	1292	ENDIF
[1]	1293
[73]	1294	IF ( bc_ns == 'dirichlet/radiation' ) THEN
[1]	1295
[73]	1296	DO j = nys-1, nyn+1
	1297	IF ( j >= ny - outflow_damping_width ) THEN
	1298	km_damp_y(j) = km_damp_max * MIN( 1.0, &
	1299	( j - ( ny - outflow_damping_width ) ) / &
	1300	REAL( outflow_damping_width/2 ) &
	1301	)
	1302	ELSE
	1303	km_damp_y(j) = 0.0
[1]	1304	ENDIF
	1305	ENDDO
	1306
[73]	1307	ELSEIF ( bc_ns == 'radiation/dirichlet' ) THEN
[1]	1308
	1309	DO j = nys-1, nyn+1
[73]	1310	IF ( j <= outflow_damping_width ) THEN
	1311	km_damp_y(j) = km_damp_max * MIN( 1.0, &
	1312	( outflow_damping_width - j ) / &
	1313	REAL( outflow_damping_width/2 ) &
	1314	)
	1315	ELSE
	1316	km_damp_y(j) = 0.0
[1]	1317	ENDIF
[73]	1318	ENDDO
[1]	1319
	1320	ENDIF
	1321
	1322	!
	1323	!-- Initialize local summation arrays for UP flow_statistics. This is necessary
	1324	!-- because they may not yet have been initialized when they are called from
	1325	!-- flow_statistics (or - depending on the chosen model run - are never
	1326	!-- initialized)
	1327	sums_divnew_l = 0.0
	1328	sums_divold_l = 0.0
	1329	sums_l_l = 0.0
	1330	sums_up_fraction_l = 0.0
	1331	sums_wsts_bc_l = 0.0
	1332
	1333	!
	1334	!-- Pre-set masks for regional statistics. Default is the total model domain.
	1335	rmask = 1.0
	1336
	1337	!
[51]	1338	!-- User-defined initializing actions. Check afterwards, if maximum number
	1339	!-- of allowed timeseries is not exceeded
[1]	1340	CALL user_init
	1341
[51]	1342	IF ( dots_num > dots_max ) THEN
	1343	IF ( myid == 0 ) THEN
	1344	PRINT*, '+++ user_init: number of time series quantities exceeds', &
	1345	' its maximum of dots_max = ', dots_max
	1346	PRINT*, ' Please increase dots_max in modules.f90.'
	1347	ENDIF
	1348	CALL local_stop
	1349	ENDIF
	1350
[1]	1351	!
	1352	!-- Input binary data file is not needed anymore. This line must be placed
	1353	!-- after call of user_init!
	1354	CALL close_file( 13 )
	1355
	1356	!
	1357	!-- Compute total sum of active mask grid points
	1358	!-- ngp_2dh: number of grid points of a horizontal cross section through the
	1359	!-- total domain
	1360	!-- ngp_3d: number of grid points of the total domain
[132]	1361	ngp_2dh_outer_l = 0
	1362	ngp_2dh_outer = 0
	1363	ngp_2dh_s_inner_l = 0
	1364	ngp_2dh_s_inner = 0
	1365	ngp_2dh_l = 0
	1366	ngp_2dh = 0
	1367	ngp_3d_inner_l = 0
	1368	ngp_3d_inner = 0
	1369	ngp_3d = 0
	1370	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
[1]	1371
	1372	DO sr = 0, statistic_regions
	1373	DO i = nxl, nxr
	1374	DO j = nys, nyn
	1375	IF ( rmask(j,i,sr) == 1.0 ) THEN
	1376	!
	1377	!-- All xy-grid points
	1378	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1379	!
	1380	!-- xy-grid points above topography
	1381	DO k = nzb_s_outer(j,i), nz + 1
	1382	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
	1383	ENDDO
[132]	1384	DO k = nzb_s_inner(j,i), nz + 1
	1385	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
	1386	ENDDO
[1]	1387	!
	1388	!-- All grid points of the total domain above topography
	1389	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
	1390	( nz - nzb_s_inner(j,i) + 2 )
	1391	ENDIF
	1392	ENDDO
	1393	ENDDO
	1394	ENDDO
	1395
	1396	sr = statistic_regions + 1
	1397	#if defined( __parallel )
	1398	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
	1399	comm2d, ierr )
	1400	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
	1401	MPI_INTEGER, MPI_SUM, comm2d, ierr )
[132]	1402	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
	1403	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
[1]	1404	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner(0), sr, MPI_INTEGER, &
	1405	MPI_SUM, comm2d, ierr )
	1406	#else
[132]	1407	ngp_2dh = ngp_2dh_l
	1408	ngp_2dh_outer = ngp_2dh_outer_l
	1409	ngp_2dh_s_inner = ngp_2dh_s_inner_l
	1410	ngp_3d_inner = ngp_3d_inner_l
[1]	1411	#endif
	1412
	1413	ngp_3d = ngp_2dh * ( nz + 2 )
	1414
	1415	!
	1416	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
	1417	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
	1418	!-- the respective subdomain lie below the surface topography
	1419	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
	1420	ngp_3d_inner = MAX( 1, ngp_3d_inner(:) )
	1421
	1422	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l )
	1423
	1424
	1425	END SUBROUTINE init_3d_model

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