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source: palm/trunk/SOURCE/init_3d_model.f90 @ 846

Last change on this file since 846 was 826, checked in by raasch, 13 years ago
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[1]	1	#if defined( __ibmy_special )
	2	@PROCESS NOOPTimize
	3	#endif
	4	SUBROUTINE init_3d_model
	5
	6	!------------------------------------------------------------------------------!
[254]	7	! Current revisions:
[732]	8	! ------------------
[826]	9	!
[708]	10	!
	11	! Former revisions:
	12	! -----------------
	13	! $Id: init_3d_model.f90 826 2012-02-19 03:41:34Z maronga $
	14	!
[826]	15	! 825 2012-02-19 03:03:44Z raasch
	16	! wang_collision_kernel renamed wang_kernel
	17	!
[791]	18	! 790 2011-11-29 03:11:20Z raasch
	19	! diss is also allocated in case that the Wang kernel is used
	20	!
[788]	21	! 787 2011-11-28 12:49:05Z heinze $
	22	! bugfix: call init_advec in every case - not only for inital runs
	23	!
[786]	24	! 785 2011-11-28 09:47:19Z raasch
	25	! initialization of rdf_sc
	26	!
[768]	27	! 767 2011-10-14 06:39:12Z raasch
	28	! adjustments concerning implementation of prescribed u,v-profiles
	29	! bugfix: dirichlet_0 conditions for ug/vg moved to check_parameters
	30	!
[760]	31	! 759 2011-09-15 13:58:31Z raasch
	32	! Splitting of parallel I/O in blocks of PEs
	33	! Bugfix: No zero assignments to volume_flow_initial and volume_flow_area in
	34	! case of normal restart runs.
	35	!
[714]	36	! 713 2011-03-30 14:21:21Z suehring
[732]	37	! weight_substep and weight_pres are given as fractions.
[714]	38	!
[710]	39	! 709 2011-03-30 09:31:40Z raasch
	40	! formatting adjustments
	41	!
[708]	42	! 707 2011-03-29 11:39:40Z raasch
[707]	43	! p_sub renamed p_loc and allocated depending on the chosen pressure solver,
	44	! initial assignments of zero to array p for iterative solvers only,
	45	! bc_lr/ns replaced by bc_lr/ns_dirrad/raddir
[674]	46	!
[708]	47	! 680 2011-02-04 23:16:06Z gryschka
[681]	48	! bugfix: volume_flow_control
[668]	49	!
[674]	50	! 673 2011-01-18 16:19:48Z suehring
	51	! weight_substep (moved from advec_ws) and weight_pres added.
	52	! Allocate p_sub when using Multigrid or SOR solver.
	53	! Call of ws_init moved behind the if requests.
	54	!
[668]	55	! 667 2010-12-23 12:06:00Z suehring/gryschka
[667]	56	! nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng in loops and
	57	! allocation of arrays. Calls of exchange_horiz are modified.
[709]	58	! Call ws_init to initialize arrays needed for calculating statisticas and for
[667]	59	! optimization when ws-scheme is used.
	60	! Initial volume flow is now calculated by using the variable hom_sum.
	61	! Therefore the correction of initial volume flow for non-flat topography
	62	! removed (removed u_nzb_p1_for_vfc and v_nzb_p1_for_vfc)
	63	! Changed surface boundary conditions for u and v in case of ibc_uv_b == 0 from
[709]	64	! mirror to Dirichlet boundary conditions (u=v=0), so that k=nzb is
	65	! representative for the height z0.
[667]	66	! Bugfix: type conversion of '1' to 64bit for the MAX function (ngp_3d_inner)
	67	!
[623]	68	! 622 2010-12-10 08:08:13Z raasch
	69	! optional barriers included in order to speed up collective operations
	70	!
[561]	71	! 560 2010-09-09 10:06:09Z weinreis
	72	! bugfix: correction of calculating ngp_3d for 64 bit
	73	!
[486]	74	! 485 2010-02-05 10:57:51Z raasch
	75	! calculation of ngp_3d + ngp_3d_inner changed because they have now 64 bit
	76	!
[482]	77	! 407 2009-12-01 15:01:15Z maronga
	78	! var_ts is replaced by dots_max
	79	! Enabled passive scalar/humidity wall fluxes for non-flat topography
	80	!
[392]	81	! 388 2009-09-23 09:40:33Z raasch
[388]	82	! Initialization of prho added.
[359]	83	! bugfix: correction of initial volume flow for non-flat topography
	84	! bugfix: zero initialization of arrays within buildings for 'cyclic_fill'
[333]	85	! bugfix: avoid that ngp_2dh_s_inner becomes zero
[328]	86	! initializing_actions='read_data_for_recycling' renamed to 'cyclic_fill', now
	87	! independent of turbulent_inflow
[254]	88	! Output of messages replaced by message handling routine.
[240]	89	! Set the starting level and the vertical smoothing factor used for
	90	! the external pressure gradient
[254]	91	! +conserve_volume_flow_mode: 'default', 'initial_profiles', 'inflow_profile'
[241]	92	! and 'bulk_velocity'
[292]	93	! If the inversion height calculated by the prerun is zero,
	94	! inflow_damping_height must be explicitly specified.
[139]	95	!
[198]	96	! 181 2008-07-30 07:07:47Z raasch
	97	! bugfix: zero assignments to tendency arrays in case of restarts,
	98	! further extensions and modifications in the initialisation of the plant
	99	! canopy model,
	100	! allocation of hom_sum moved to parin, initialization of spectrum_x\|y directly
	101	! after allocating theses arrays,
	102	! read data for recycling added as new initialization option,
	103	! dummy allocation for diss
	104	!
[139]	105	! 138 2007-11-28 10:03:58Z letzel
[132]	106	! New counter ngp_2dh_s_inner.
	107	! Allow new case bc_uv_t = 'dirichlet_0' for channel flow.
	108	! Corrected calculation of initial volume flow for 'set_1d-model_profiles' and
	109	! 'set_constant_profiles' in case of buildings in the reference cross-sections.
[77]	110	!
[110]	111	! 108 2007-08-24 15:10:38Z letzel
	112	! Flux initialization in case of coupled runs, +momentum fluxes at top boundary,
	113	! +arrays for phase speed c_u, c_v, c_w, indices for u\|v\|w_m_l\|r changed
	114	! +qswst_remote in case of atmosphere model with humidity coupled to ocean
	115	! Rayleigh damping for ocean, optionally calculate km and kh from initial
	116	! TKE e_init
	117	!
[98]	118	! 97 2007-06-21 08:23:15Z raasch
	119	! Initialization of salinity, call of init_ocean
	120	!
[90]	121	! 87 2007-05-22 15:46:47Z raasch
	122	! var_hom and var_sum renamed pr_palm
	123	!
[77]	124	! 75 2007-03-22 09:54:05Z raasch
[73]	125	! Arrays for radiation boundary conditions are allocated (u_m_l, u_m_r, etc.),
	126	! bugfix for cases with the outflow damping layer extending over more than one
[75]	127	! subdomain, moisture renamed humidity,
	128	! new initializing action "by_user" calls user_init_3d_model,
[72]	129	! precipitation_amount/rate, ts_value are allocated, +module netcdf_control,
[51]	130	! initial velocities at nzb+1 are regarded for volume
	131	! flow control in case they have been set zero before (to avoid small timesteps)
[75]	132	! -uvmean_outflow, uxrp, vynp eliminated
[1]	133	!
[39]	134	! 19 2007-02-23 04:53:48Z raasch
	135	! +handling of top fluxes
	136	!
[3]	137	! RCS Log replace by Id keyword, revision history cleaned up
	138	!
[1]	139	! Revision 1.49 2006/08/22 15:59:07 raasch
	140	! No optimization of this file on the ibmy (Yonsei Univ.)
	141	!
	142	! Revision 1.1 1998/03/09 16:22:22 raasch
	143	! Initial revision
	144	!
	145	!
	146	! Description:
	147	! ------------
	148	! Allocation of arrays and initialization of the 3D model via
	149	! a) pre-run the 1D model
	150	! or
	151	! b) pre-set constant linear profiles
	152	! or
	153	! c) read values of a previous run
	154	!------------------------------------------------------------------------------!
	155
[667]	156	USE advec_ws
[1]	157	USE arrays_3d
	158	USE averaging
[72]	159	USE cloud_parameters
[1]	160	USE constants
	161	USE control_parameters
	162	USE cpulog
	163	USE indices
	164	USE interfaces
	165	USE model_1d
[51]	166	USE netcdf_control
[1]	167	USE particle_attributes
	168	USE pegrid
	169	USE profil_parameter
	170	USE random_function_mod
	171	USE statistics
	172
	173	IMPLICIT NONE
	174
[559]	175	INTEGER :: i, ind_array(1), j, k, sr
[1]	176
[485]	177	INTEGER, DIMENSION(:), ALLOCATABLE :: ngp_2dh_l
[1]	178
[132]	179	INTEGER, DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l, &
	180	ngp_2dh_s_inner_l
[1]	181
[153]	182	REAL :: a, b
	183
[1]	184	REAL, DIMENSION(1:2) :: volume_flow_area_l, volume_flow_initial_l
	185
[485]	186	REAL, DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l, ngp_3d_inner_tmp
[1]	187
[485]	188
[1]	189	!
	190	!-- Allocate arrays
	191	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
	192	ngp_3d(0:statistic_regions), &
	193	ngp_3d_inner(0:statistic_regions), &
	194	ngp_3d_inner_l(0:statistic_regions), &
[485]	195	ngp_3d_inner_tmp(0:statistic_regions), &
[1]	196	sums_divnew_l(0:statistic_regions), &
	197	sums_divold_l(0:statistic_regions) )
[785]	198	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
[143]	199	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
[1]	200	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
[132]	201	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
	202	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
[667]	203	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
[87]	204	sums(nzb:nzt+1,pr_palm+max_pr_user), &
	205	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
[1]	206	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
	207	sums_up_fraction_l(10,3,0:statistic_regions), &
[48]	208	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
[394]	209	ts_value(dots_max,0:statistic_regions) )
[667]	210	ALLOCATE( km_damp_x(nxlg:nxrg), km_damp_y(nysg:nyng) )
[1]	211
[667]	212	ALLOCATE( rif_1(nysg:nyng,nxlg:nxrg), shf_1(nysg:nyng,nxlg:nxrg), &
	213	ts(nysg:nyng,nxlg:nxrg), tswst_1(nysg:nyng,nxlg:nxrg), &
	214	us(nysg:nyng,nxlg:nxrg), usws_1(nysg:nyng,nxlg:nxrg), &
	215	uswst_1(nysg:nyng,nxlg:nxrg), &
	216	vsws_1(nysg:nyng,nxlg:nxrg), &
	217	vswst_1(nysg:nyng,nxlg:nxrg), z0(nysg:nyng,nxlg:nxrg) )
[1]	218
	219	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	220	!
	221	!-- Leapfrog scheme needs two timelevels of diffusion quantities
[667]	222	ALLOCATE( rif_2(nysg:nyng,nxlg:nxrg), &
	223	shf_2(nysg:nyng,nxlg:nxrg), &
	224	tswst_2(nysg:nyng,nxlg:nxrg), &
	225	usws_2(nysg:nyng,nxlg:nxrg), &
	226	uswst_2(nysg:nyng,nxlg:nxrg), &
	227	vswst_2(nysg:nyng,nxlg:nxrg), &
	228	vsws_2(nysg:nyng,nxlg:nxrg) )
[1]	229	ENDIF
	230
[75]	231	ALLOCATE( d(nzb+1:nzta,nys:nyna,nxl:nxra), &
[667]	232	e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	233	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	234	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	235	kh_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	236	km_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	237	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	238	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	239	pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	240	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	241	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	242	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	243	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	244	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	245	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	246	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	247	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	248	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	249	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	250	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[673]	251	!
[707]	252	!-- Following array is required for perturbation pressure within the iterative
	253	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
	254	!-- the weighted average of the substeps and cannot be used in the Poisson
	255	!-- solver.
	256	IF ( psolver == 'sor' ) THEN
	257	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	258	ELSEIF ( psolver == 'multigrid' ) THEN
	259	!
	260	!-- For performance reasons, multigrid is using one ghost layer only
	261	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[673]	262	ENDIF
[1]	263
	264	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
[667]	265	ALLOCATE( kh_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	266	km_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1]	267	ENDIF
	268
[75]	269	IF ( humidity .OR. passive_scalar ) THEN
[1]	270	!
[75]	271	!-- 2D-humidity/scalar arrays
[667]	272	ALLOCATE ( qs(nysg:nyng,nxlg:nxrg), &
	273	qsws_1(nysg:nyng,nxlg:nxrg), &
	274	qswst_1(nysg:nyng,nxlg:nxrg) )
[1]	275
	276	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
[667]	277	ALLOCATE( qsws_2(nysg:nyng,nxlg:nxrg), &
	278	qswst_2(nysg:nyng,nxlg:nxrg) )
[1]	279	ENDIF
	280	!
[75]	281	!-- 3D-humidity/scalar arrays
[667]	282	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	283	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	284	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1]	285
	286	!
[75]	287	!-- 3D-arrays needed for humidity only
	288	IF ( humidity ) THEN
[667]	289	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1]	290
	291	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
[667]	292	ALLOCATE( vpt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1]	293	ENDIF
	294
	295	IF ( cloud_physics ) THEN
	296	!
	297	!-- Liquid water content
[667]	298	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[72]	299	!
	300	!-- Precipitation amount and rate (only needed if output is switched)
[667]	301	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
	302	precipitation_rate(nysg:nyng,nxlg:nxrg) )
[1]	303	ENDIF
	304
	305	IF ( cloud_droplets ) THEN
	306	!
	307	!-- Liquid water content, change in liquid water content,
	308	!-- real volume of particles (with weighting), volume of particles
[667]	309	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	310	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	311	ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	312	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1]	313	ENDIF
	314
	315	ENDIF
	316
	317	ENDIF
	318
[94]	319	IF ( ocean ) THEN
[667]	320	ALLOCATE( saswsb_1(nysg:nyng,nxlg:nxrg), &
	321	saswst_1(nysg:nyng,nxlg:nxrg) )
	322	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	323	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	324	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	325	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	326	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[388]	327	prho => prho_1
	328	rho => rho_1 ! routines calc_mean_profile and diffusion_e require
	329	! density to be apointer
[108]	330	IF ( humidity_remote ) THEN
[667]	331	ALLOCATE( qswst_remote(nysg:nyng,nxlg:nxrg))
[108]	332	qswst_remote = 0.0
	333	ENDIF
[94]	334	ENDIF
	335
[1]	336	!
	337	!-- 3D-array for storing the dissipation, needed for calculating the sgs
	338	!-- particle velocities
[825]	339	IF ( use_sgs_for_particles .OR. wang_kernel ) THEN
[667]	340	ALLOCATE ( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[181]	341	ELSE
	342	ALLOCATE ( diss(2,2,2) ) ! required because diss is used as a
	343	! formal parameter
[1]	344	ENDIF
	345
	346	IF ( dt_dosp /= 9999999.9 ) THEN
	347	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
	348	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
[146]	349	spectrum_x = 0.0
	350	spectrum_y = 0.0
[1]	351	ENDIF
	352
	353	!
[138]	354	!-- 3D-arrays for the leaf area density and the canopy drag coefficient
	355	IF ( plant_canopy ) THEN
[667]	356	ALLOCATE ( lad_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	357	lad_u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	358	lad_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	359	lad_w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	360	cdc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[153]	361
	362	IF ( passive_scalar ) THEN
[667]	363	ALLOCATE ( sls(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	364	sec(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[153]	365	ENDIF
	366
	367	IF ( cthf /= 0.0 ) THEN
[667]	368	ALLOCATE ( lai(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	369	canopy_heat_flux(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[153]	370	ENDIF
	371
[138]	372	ENDIF
	373
	374	!
[51]	375	!-- 4D-array for storing the Rif-values at vertical walls
	376	IF ( topography /= 'flat' ) THEN
[667]	377	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
[51]	378	rif_wall = 0.0
	379	ENDIF
	380
	381	!
[106]	382	!-- Arrays to store velocity data from t-dt and the phase speeds which
	383	!-- are needed for radiation boundary conditions
[73]	384	IF ( outflow_l ) THEN
[667]	385	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
	386	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
	387	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
[73]	388	ENDIF
	389	IF ( outflow_r ) THEN
[667]	390	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	391	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	392	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
[73]	393	ENDIF
[106]	394	IF ( outflow_l .OR. outflow_r ) THEN
[667]	395	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
	396	c_w(nzb:nzt+1,nysg:nyng) )
[106]	397	ENDIF
[73]	398	IF ( outflow_s ) THEN
[667]	399	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
	400	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
	401	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
[73]	402	ENDIF
	403	IF ( outflow_n ) THEN
[667]	404	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	405	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	406	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
[73]	407	ENDIF
[106]	408	IF ( outflow_s .OR. outflow_n ) THEN
[667]	409	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
	410	c_w(nzb:nzt+1,nxlg:nxrg) )
[106]	411	ENDIF
[73]	412
	413	!
[1]	414	!-- Initial assignment of the pointers
	415	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	416
[19]	417	rif_m => rif_1; rif => rif_2
	418	shf_m => shf_1; shf => shf_2
	419	tswst_m => tswst_1; tswst => tswst_2
	420	usws_m => usws_1; usws => usws_2
[102]	421	uswst_m => uswst_1; uswst => uswst_2
[19]	422	vsws_m => vsws_1; vsws => vsws_2
[102]	423	vswst_m => vswst_1; vswst => vswst_2
[1]	424	e_m => e_1; e => e_2; e_p => e_3; te_m => e_3
	425	kh_m => kh_1; kh => kh_2
	426	km_m => km_1; km => km_2
	427	pt_m => pt_1; pt => pt_2; pt_p => pt_3; tpt_m => pt_3
	428	u_m => u_1; u => u_2; u_p => u_3; tu_m => u_3
	429	v_m => v_1; v => v_2; v_p => v_3; tv_m => v_3
	430	w_m => w_1; w => w_2; w_p => w_3; tw_m => w_3
	431
[75]	432	IF ( humidity .OR. passive_scalar ) THEN
[19]	433	qsws_m => qsws_1; qsws => qsws_2
	434	qswst_m => qswst_1; qswst => qswst_2
[1]	435	q_m => q_1; q => q_2; q_p => q_3; tq_m => q_3
[75]	436	IF ( humidity ) vpt_m => vpt_1; vpt => vpt_2
[1]	437	IF ( cloud_physics ) ql => ql_1
	438	IF ( cloud_droplets ) THEN
	439	ql => ql_1
	440	ql_c => ql_2
	441	ENDIF
	442	ENDIF
	443
	444	ELSE
	445
[19]	446	rif => rif_1
	447	shf => shf_1
	448	tswst => tswst_1
	449	usws => usws_1
[102]	450	uswst => uswst_1
[19]	451	vsws => vsws_1
[102]	452	vswst => vswst_1
[19]	453	e => e_1; e_p => e_2; te_m => e_3; e_m => e_3
	454	kh => kh_1
	455	km => km_1
	456	pt => pt_1; pt_p => pt_2; tpt_m => pt_3; pt_m => pt_3
	457	u => u_1; u_p => u_2; tu_m => u_3; u_m => u_3
	458	v => v_1; v_p => v_2; tv_m => v_3; v_m => v_3
	459	w => w_1; w_p => w_2; tw_m => w_3; w_m => w_3
[1]	460
[75]	461	IF ( humidity .OR. passive_scalar ) THEN
[1]	462	qsws => qsws_1
[19]	463	qswst => qswst_1
[94]	464	q => q_1; q_p => q_2; tq_m => q_3; q_m => q_3
[75]	465	IF ( humidity ) vpt => vpt_1
[1]	466	IF ( cloud_physics ) ql => ql_1
	467	IF ( cloud_droplets ) THEN
	468	ql => ql_1
	469	ql_c => ql_2
	470	ENDIF
	471	ENDIF
	472
[94]	473	IF ( ocean ) THEN
[95]	474	saswsb => saswsb_1
[94]	475	saswst => saswst_1
	476	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
	477	ENDIF
	478
[1]	479	ENDIF
[673]	480
[1]	481	!
[709]	482	!-- Allocate arrays containing the RK coefficient for calculation of
	483	!-- perturbation pressure and turbulent fluxes. At this point values are
	484	!-- set for pressure calculation during initialization (where no timestep
	485	!-- is done). Further below the values needed within the timestep scheme
	486	!-- will be set.
	487	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
[673]	488	weight_pres(1:intermediate_timestep_count_max) )
[709]	489	weight_substep = 1.0
	490	weight_pres = 1.0
	491	intermediate_timestep_count = 1 ! needed when simulated_time = 0.0
[673]	492
	493	!
[1]	494	!-- Initialize model variables
[147]	495	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[328]	496	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[1]	497	!
	498	!-- First model run of a possible job queue.
	499	!-- Initial profiles of the variables must be computes.
	500	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
	501	!
	502	!-- Use solutions of the 1D model as initial profiles,
	503	!-- start 1D model
	504	CALL init_1d_model
	505	!
	506	!-- Transfer initial profiles to the arrays of the 3D model
[667]	507	DO i = nxlg, nxrg
	508	DO j = nysg, nyng
[1]	509	e(:,j,i) = e1d
	510	kh(:,j,i) = kh1d
	511	km(:,j,i) = km1d
	512	pt(:,j,i) = pt_init
	513	u(:,j,i) = u1d
	514	v(:,j,i) = v1d
	515	ENDDO
	516	ENDDO
	517
[75]	518	IF ( humidity .OR. passive_scalar ) THEN
[667]	519	DO i = nxlg, nxrg
	520	DO j = nysg, nyng
[1]	521	q(:,j,i) = q_init
	522	ENDDO
	523	ENDDO
	524	ENDIF
	525
	526	IF ( .NOT. constant_diffusion ) THEN
[667]	527	DO i = nxlg, nxrg
	528	DO j = nysg, nyng
[1]	529	e(:,j,i) = e1d
	530	ENDDO
	531	ENDDO
	532	!
	533	!-- Store initial profiles for output purposes etc.
	534	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	535
	536	IF ( prandtl_layer ) THEN
	537	rif = rif1d(nzb+1)
	538	ts = 0.0 ! could actually be computed more accurately in the
	539	! 1D model. Update when opportunity arises.
	540	us = us1d
	541	usws = usws1d
	542	vsws = vsws1d
	543	ELSE
	544	ts = 0.0 ! must be set, because used in
	545	rif = 0.0 ! flowste
	546	us = 0.0
	547	usws = 0.0
	548	vsws = 0.0
	549	ENDIF
	550
	551	ELSE
	552	e = 0.0 ! must be set, because used in
	553	rif = 0.0 ! flowste
	554	ts = 0.0
	555	us = 0.0
	556	usws = 0.0
	557	vsws = 0.0
	558	ENDIF
[102]	559	uswst = top_momentumflux_u
	560	vswst = top_momentumflux_v
[1]	561
	562	!
	563	!-- In every case qs = 0.0 (see also pt)
	564	!-- This could actually be computed more accurately in the 1D model.
	565	!-- Update when opportunity arises!
[75]	566	IF ( humidity .OR. passive_scalar ) qs = 0.0
[1]	567
	568	!
	569	!-- inside buildings set velocities back to zero
	570	IF ( topography /= 'flat' ) THEN
	571	DO i = nxl-1, nxr+1
	572	DO j = nys-1, nyn+1
	573	u(nzb:nzb_u_inner(j,i),j,i) = 0.0
	574	v(nzb:nzb_v_inner(j,i),j,i) = 0.0
	575	ENDDO
	576	ENDDO
[667]	577
[1]	578	!
	579	!-- WARNING: The extra boundary conditions set after running the
	580	!-- ------- 1D model impose an error on the divergence one layer
	581	!-- below the topography; need to correct later
	582	!-- ATTENTION: Provisional correction for Piacsek & Williams
	583	!-- --------- advection scheme: keep u and v zero one layer below
	584	!-- the topography.
	585	!
[667]	586	!-- Following was removed, because mirror boundary condition are
	587	!-- replaced by dirichlet boundary conditions
[1]	588	!
[667]	589	! IF ( ibc_uv_b == 0 ) THEN
	590	!!
	591	!!-- Satisfying the Dirichlet condition with an extra layer below
	592	!!-- the surface where the u and v component change their sign.
	593	! DO i = nxl-1, nxr+1
	594	! DO j = nys-1, nyn+1
	595	! IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = -u(1,j,i)
	596	! IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = -v(1,j,i)
	597	! ENDDO
	598	! ENDDO
	599	!
	600	! ELSE
	601	IF ( ibc_uv_b == 1 ) THEN
	602	!
[1]	603	!-- Neumann condition
	604	DO i = nxl-1, nxr+1
	605	DO j = nys-1, nyn+1
	606	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
	607	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
	608	ENDDO
	609	ENDDO
	610
	611	ENDIF
	612
	613	ENDIF
	614
	615	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
	616	THEN
	617	!
	618	!-- Use constructed initial profiles (velocity constant with height,
	619	!-- temperature profile with constant gradient)
[667]	620	DO i = nxlg, nxrg
	621	DO j = nysg, nyng
[1]	622	pt(:,j,i) = pt_init
	623	u(:,j,i) = u_init
	624	v(:,j,i) = v_init
	625	ENDDO
	626	ENDDO
[75]	627
[1]	628	!
[292]	629	!-- Set initial horizontal velocities at the lowest computational grid
	630	!-- levels to zero in order to avoid too small time steps caused by the
	631	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
	632	!-- in the limiting formula!). The original values are stored to be later
	633	!-- used for volume flow control.
[667]	634	DO i = nxlg, nxrg
	635	DO j = nysg, nyng
[1]	636	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0
	637	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0
	638	ENDDO
	639	ENDDO
	640
[75]	641	IF ( humidity .OR. passive_scalar ) THEN
[667]	642	DO i = nxlg, nxrg
	643	DO j = nysg, nyng
[1]	644	q(:,j,i) = q_init
	645	ENDDO
	646	ENDDO
	647	ENDIF
	648
[94]	649	IF ( ocean ) THEN
[667]	650	DO i = nxlg, nxrg
	651	DO j = nysg, nyng
[94]	652	sa(:,j,i) = sa_init
	653	ENDDO
	654	ENDDO
	655	ENDIF
[1]	656
	657	IF ( constant_diffusion ) THEN
	658	km = km_constant
	659	kh = km / prandtl_number
[108]	660	e = 0.0
	661	ELSEIF ( e_init > 0.0 ) THEN
	662	DO k = nzb+1, nzt
	663	km(k,:,:) = 0.1 * l_grid(k) * SQRT( e_init )
	664	ENDDO
	665	km(nzb,:,:) = km(nzb+1,:,:)
	666	km(nzt+1,:,:) = km(nzt,:,:)
	667	kh = km / prandtl_number
	668	e = e_init
[1]	669	ELSE
[108]	670	IF ( .NOT. ocean ) THEN
	671	kh = 0.01 ! there must exist an initial diffusion, because
	672	km = 0.01 ! otherwise no TKE would be produced by the
	673	! production terms, as long as not yet
	674	! e = (u/cm)*2 at k=nzb+1
	675	ELSE
	676	kh = 0.00001
	677	km = 0.00001
	678	ENDIF
	679	e = 0.0
[1]	680	ENDIF
[102]	681	rif = 0.0
	682	ts = 0.0
	683	us = 0.0
	684	usws = 0.0
	685	uswst = top_momentumflux_u
	686	vsws = 0.0
	687	vswst = top_momentumflux_v
[75]	688	IF ( humidity .OR. passive_scalar ) qs = 0.0
[1]	689
	690	!
	691	!-- Compute initial temperature field and other constants used in case
	692	!-- of a sloping surface
	693	IF ( sloping_surface ) CALL init_slope
	694
[46]	695	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
	696	THEN
	697	!
	698	!-- Initialization will completely be done by the user
	699	CALL user_init_3d_model
	700
[1]	701	ENDIF
[667]	702	!
	703	!-- Bottom boundary
	704	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
	705	u(nzb,:,:) = 0.0
	706	v(nzb,:,:) = 0.0
	707	ENDIF
[1]	708
	709	!
[151]	710	!-- Apply channel flow boundary condition
[132]	711	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
	712	u(nzt+1,:,:) = 0.0
	713	v(nzt+1,:,:) = 0.0
	714	ENDIF
	715
	716	!
[1]	717	!-- Calculate virtual potential temperature
[75]	718	IF ( humidity ) vpt = pt * ( 1.0 + 0.61 * q )
[1]	719
	720	!
	721	!-- Store initial profiles for output purposes etc.
	722	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	723	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
[667]	724	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
	725	hom(nzb,1,5,:) = 0.0
	726	hom(nzb,1,6,:) = 0.0
[1]	727	ENDIF
	728	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	729	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
	730	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
	731
[97]	732	IF ( ocean ) THEN
	733	!
	734	!-- Store initial salinity profile
	735	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
	736	ENDIF
[1]	737
[75]	738	IF ( humidity ) THEN
[1]	739	!
	740	!-- Store initial profile of total water content, virtual potential
	741	!-- temperature
	742	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	743	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
	744	IF ( cloud_physics .OR. cloud_droplets ) THEN
	745	!
	746	!-- Store initial profile of specific humidity and potential
	747	!-- temperature
	748	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	749	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	750	ENDIF
	751	ENDIF
	752
	753	IF ( passive_scalar ) THEN
	754	!
	755	!-- Store initial scalar profile
	756	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	757	ENDIF
	758
	759	!
[19]	760	!-- Initialize fluxes at bottom surface
[1]	761	IF ( use_surface_fluxes ) THEN
	762
	763	IF ( constant_heatflux ) THEN
	764	!
	765	!-- Heat flux is prescribed
	766	IF ( random_heatflux ) THEN
	767	CALL disturb_heatflux
	768	ELSE
	769	shf = surface_heatflux
	770	!
	771	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
	772	IF ( TRIM( topography ) /= 'flat' ) THEN
[667]	773	DO i = nxlg, nxrg
	774	DO j = nysg, nyng
[1]	775	IF ( nzb_s_inner(j,i) /= 0 ) THEN
	776	shf(j,i) = wall_heatflux(0)
	777	ENDIF
	778	ENDDO
	779	ENDDO
	780	ENDIF
	781	ENDIF
	782	IF ( ASSOCIATED( shf_m ) ) shf_m = shf
	783	ENDIF
	784
	785	!
	786	!-- Determine the near-surface water flux
[75]	787	IF ( humidity .OR. passive_scalar ) THEN
[1]	788	IF ( constant_waterflux ) THEN
	789	qsws = surface_waterflux
[407]	790	!
	791	!-- Over topography surface_waterflux is replaced by
	792	!-- wall_humidityflux(0)
	793	IF ( TRIM( topography ) /= 'flat' ) THEN
	794	wall_qflux = wall_humidityflux
[667]	795	DO i = nxlg, nxrg
	796	DO j = nysg, nyng
[407]	797	IF ( nzb_s_inner(j,i) /= 0 ) THEN
	798	qsws(j,i) = wall_qflux(0)
	799	ENDIF
	800	ENDDO
	801	ENDDO
	802	ENDIF
[1]	803	IF ( ASSOCIATED( qsws_m ) ) qsws_m = qsws
	804	ENDIF
	805	ENDIF
	806
	807	ENDIF
	808
	809	!
[19]	810	!-- Initialize fluxes at top surface
[94]	811	!-- Currently, only the heatflux and salinity flux can be prescribed.
	812	!-- The latent flux is zero in this case!
[19]	813	IF ( use_top_fluxes ) THEN
	814
	815	IF ( constant_top_heatflux ) THEN
	816	!
	817	!-- Heat flux is prescribed
	818	tswst = top_heatflux
	819	IF ( ASSOCIATED( tswst_m ) ) tswst_m = tswst
	820
[75]	821	IF ( humidity .OR. passive_scalar ) THEN
[19]	822	qswst = 0.0
	823	IF ( ASSOCIATED( qswst_m ) ) qswst_m = qswst
	824	ENDIF
[94]	825
	826	IF ( ocean ) THEN
[95]	827	saswsb = bottom_salinityflux
[94]	828	saswst = top_salinityflux
	829	ENDIF
[102]	830	ENDIF
[19]	831
[102]	832	!
	833	!-- Initialization in case of a coupled model run
	834	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
	835	tswst = 0.0
	836	IF ( ASSOCIATED( tswst_m ) ) tswst_m = tswst
	837	ENDIF
	838
[19]	839	ENDIF
	840
	841	!
[1]	842	!-- Initialize Prandtl layer quantities
	843	IF ( prandtl_layer ) THEN
	844
	845	z0 = roughness_length
	846
	847	IF ( .NOT. constant_heatflux ) THEN
	848	!
	849	!-- Surface temperature is prescribed. Here the heat flux cannot be
	850	!-- simply estimated, because therefore rif, u* and theta* would have
	851	!-- to be computed by iteration. This is why the heat flux is assumed
	852	!-- to be zero before the first time step. It approaches its correct
	853	!-- value in the course of the first few time steps.
	854	shf = 0.0
	855	IF ( ASSOCIATED( shf_m ) ) shf_m = 0.0
	856	ENDIF
	857
[75]	858	IF ( humidity .OR. passive_scalar ) THEN
[1]	859	IF ( .NOT. constant_waterflux ) THEN
	860	qsws = 0.0
	861	IF ( ASSOCIATED( qsws_m ) ) qsws_m = 0.0
	862	ENDIF
	863	ENDIF
	864
	865	ENDIF
	866
[152]	867
	868	!
[707]	869	!-- For the moment, vertical velocity is zero
	870	w = 0.0
[1]	871
	872	!
	873	!-- Initialize array sums (must be defined in first call of pres)
	874	sums = 0.0
	875
	876	!
[707]	877	!-- In case of iterative solvers, p must get an initial value
	878	IF ( psolver == 'multigrid' .OR. psolver == 'sor' ) p = 0.0
	879
	880	!
[72]	881	!-- Treating cloud physics, liquid water content and precipitation amount
	882	!-- are zero at beginning of the simulation
	883	IF ( cloud_physics ) THEN
	884	ql = 0.0
	885	IF ( precipitation ) precipitation_amount = 0.0
	886	ENDIF
[673]	887	!
[1]	888	!-- Impose vortex with vertical axis on the initial velocity profile
	889	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	890	CALL init_rankine
	891	ENDIF
	892
	893	!
	894	!-- Impose temperature anomaly (advection test only)
	895	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
	896	CALL init_pt_anomaly
	897	ENDIF
	898
	899	!
	900	!-- If required, change the surface temperature at the start of the 3D run
	901	IF ( pt_surface_initial_change /= 0.0 ) THEN
	902	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	903	ENDIF
	904
	905	!
	906	!-- If required, change the surface humidity/scalar at the start of the 3D
	907	!-- run
[75]	908	IF ( ( humidity .OR. passive_scalar ) .AND. &
[1]	909	q_surface_initial_change /= 0.0 ) THEN
	910	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
	911	ENDIF
	912
	913	!
	914	!-- Initialize the random number generator (from numerical recipes)
	915	CALL random_function_ini
	916
	917	!
	918	!-- Initialize old and new time levels.
	919	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	920	e_m = e; pt_m = pt; u_m = u; v_m = v; w_m = w; kh_m = kh; km_m = km
	921	ELSE
	922	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
	923	ENDIF
	924	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
	925
[75]	926	IF ( humidity .OR. passive_scalar ) THEN
[1]	927	IF ( ASSOCIATED( q_m ) ) q_m = q
	928	IF ( timestep_scheme(1:5) == 'runge' ) tq_m = 0.0
	929	q_p = q
[75]	930	IF ( humidity .AND. ASSOCIATED( vpt_m ) ) vpt_m = vpt
[1]	931	ENDIF
	932
[94]	933	IF ( ocean ) THEN
	934	tsa_m = 0.0
	935	sa_p = sa
	936	ENDIF
[667]	937
[94]	938
[147]	939	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
[667]	940	TRIM( initializing_actions ) == 'cyclic_fill' ) &
[1]	941	THEN
	942	!
[767]	943	!-- When reading data for cyclic fill of 3D prerun data files, read
	944	!-- some of the global variables from the restart file which are required
	945	!-- for initializing the inflow
[328]	946	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[559]	947
[759]	948	DO i = 0, io_blocks-1
	949	IF ( i == io_group ) THEN
	950	CALL read_parts_of_var_list
	951	CALL close_file( 13 )
	952	ENDIF
	953	#if defined( __parallel )
	954	CALL MPI_BARRIER( comm2d, ierr )
	955	#endif
	956	ENDDO
[328]	957
[767]	958	ENDIF
	959
[151]	960	!
[767]	961	!-- Read binary data from restart file
	962	DO i = 0, io_blocks-1
	963	IF ( i == io_group ) THEN
	964	CALL read_3d_binary
	965	ENDIF
	966	#if defined( __parallel )
	967	CALL MPI_BARRIER( comm2d, ierr )
	968	#endif
	969	ENDDO
	970
[328]	971	!
[767]	972	!-- Initialization of the turbulence recycling method
	973	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
	974	turbulent_inflow ) THEN
	975	!
	976	!-- First store the profiles to be used at the inflow.
	977	!-- These profiles are the (temporally) and horizontally averaged vertical
	978	!-- profiles from the prerun. Alternatively, prescribed profiles
	979	!-- for u,v-components can be used.
	980	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,5) )
[151]	981
[767]	982	IF ( use_prescribed_profile_data ) THEN
	983	mean_inflow_profiles(:,1) = u_init ! u
	984	mean_inflow_profiles(:,2) = v_init ! v
	985	ELSE
[328]	986	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
	987	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
[767]	988	ENDIF
	989	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
	990	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
[151]	991
	992	!
[767]	993	!-- If necessary, adjust the horizontal flow field to the prescribed
	994	!-- profiles
	995	IF ( use_prescribed_profile_data ) THEN
	996	DO i = nxlg, nxrg
[667]	997	DO j = nysg, nyng
[328]	998	DO k = nzb, nzt+1
[767]	999	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
	1000	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
[328]	1001	ENDDO
[151]	1002	ENDDO
[767]	1003	ENDDO
	1004	ENDIF
[151]	1005
	1006	!
[767]	1007	!-- Use these mean profiles at the inflow (provided that Dirichlet
	1008	!-- conditions are used)
	1009	IF ( inflow_l ) THEN
	1010	DO j = nysg, nyng
	1011	DO k = nzb, nzt+1
	1012	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
	1013	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
	1014	w(k,j,nxlg:-1) = 0.0
	1015	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
	1016	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
	1017	ENDDO
	1018	ENDDO
	1019	ENDIF
	1020
[151]	1021	!
[767]	1022	!-- Calculate the damping factors to be used at the inflow. For a
	1023	!-- turbulent inflow the turbulent fluctuations have to be limited
	1024	!-- vertically because otherwise the turbulent inflow layer will grow
	1025	!-- in time.
	1026	IF ( inflow_damping_height == 9999999.9 ) THEN
	1027	!
	1028	!-- Default: use the inversion height calculated by the prerun; if
	1029	!-- this is zero, inflow_damping_height must be explicitly
	1030	!-- specified.
	1031	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0 ) THEN
	1032	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
	1033	ELSE
	1034	WRITE( message_string, * ) 'inflow_damping_height must be ',&
	1035	'explicitly specified because&the inversion height ', &
	1036	'calculated by the prerun is zero.'
	1037	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
[292]	1038	ENDIF
[151]	1039
[767]	1040	ENDIF
	1041
	1042	IF ( inflow_damping_width == 9999999.9 ) THEN
[151]	1043	!
[767]	1044	!-- Default for the transition range: one tenth of the undamped
	1045	!-- layer
	1046	inflow_damping_width = 0.1 * inflow_damping_height
[151]	1047
[767]	1048	ENDIF
[151]	1049
[767]	1050	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
[151]	1051
[767]	1052	DO k = nzb, nzt+1
[151]	1053
[767]	1054	IF ( zu(k) <= inflow_damping_height ) THEN
	1055	inflow_damping_factor(k) = 1.0
	1056	ELSEIF ( zu(k) <= inflow_damping_height + &
	1057	inflow_damping_width ) THEN
	1058	inflow_damping_factor(k) = 1.0 - &
	1059	( zu(k) - inflow_damping_height ) / &
	1060	inflow_damping_width
	1061	ELSE
	1062	inflow_damping_factor(k) = 0.0
	1063	ENDIF
[151]	1064
[767]	1065	ENDDO
[151]	1066
[147]	1067	ENDIF
	1068
[152]	1069	!
[359]	1070	!-- Inside buildings set velocities and TKE back to zero
	1071	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
	1072	topography /= 'flat' ) THEN
	1073	!
	1074	!-- Inside buildings set velocities and TKE back to zero.
	1075	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
	1076	!-- maybe revise later.
	1077	IF ( timestep_scheme(1:5) == 'runge' ) THEN
[667]	1078	DO i = nxlg, nxrg
	1079	DO j = nysg, nyng
[359]	1080	u (nzb:nzb_u_inner(j,i),j,i) = 0.0
	1081	v (nzb:nzb_v_inner(j,i),j,i) = 0.0
	1082	w (nzb:nzb_w_inner(j,i),j,i) = 0.0
	1083	e (nzb:nzb_w_inner(j,i),j,i) = 0.0
	1084	u_m(nzb:nzb_u_inner(j,i),j,i) = 0.0
	1085	v_m(nzb:nzb_v_inner(j,i),j,i) = 0.0
	1086	w_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
	1087	e_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
	1088	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0
	1089	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0
	1090	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
	1091	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
	1092	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
	1093	ENDDO
	1094	ENDDO
	1095	ELSE
[667]	1096	DO i = nxlg, nxrg
	1097	DO j = nysg, nyng
[359]	1098	u (nzb:nzb_u_inner(j,i),j,i) = 0.0
	1099	v (nzb:nzb_v_inner(j,i),j,i) = 0.0
	1100	w (nzb:nzb_w_inner(j,i),j,i) = 0.0
	1101	e (nzb:nzb_w_inner(j,i),j,i) = 0.0
	1102	u_m(nzb:nzb_u_inner(j,i),j,i) = 0.0
	1103	v_m(nzb:nzb_v_inner(j,i),j,i) = 0.0
	1104	w_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
	1105	e_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
	1106	u_p(nzb:nzb_u_inner(j,i),j,i) = 0.0
	1107	v_p(nzb:nzb_v_inner(j,i),j,i) = 0.0
	1108	w_p(nzb:nzb_w_inner(j,i),j,i) = 0.0
	1109	e_p(nzb:nzb_w_inner(j,i),j,i) = 0.0
	1110	ENDDO
	1111	ENDDO
	1112	ENDIF
	1113
	1114	ENDIF
	1115
	1116	!
[1]	1117	!-- Calculate initial temperature field and other constants used in case
	1118	!-- of a sloping surface
	1119	IF ( sloping_surface ) CALL init_slope
	1120
	1121	!
	1122	!-- Initialize new time levels (only done in order to set boundary values
	1123	!-- including ghost points)
	1124	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
[75]	1125	IF ( humidity .OR. passive_scalar ) q_p = q
[94]	1126	IF ( ocean ) sa_p = sa
[1]	1127
[181]	1128	!
	1129	!-- Allthough tendency arrays are set in prognostic_equations, they have
	1130	!-- have to be predefined here because they are used (but multiplied with 0)
	1131	!-- there before they are set.
	1132	IF ( timestep_scheme(1:5) == 'runge' ) THEN
	1133	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
	1134	IF ( humidity .OR. passive_scalar ) tq_m = 0.0
	1135	IF ( ocean ) tsa_m = 0.0
	1136	ENDIF
	1137
[1]	1138	ELSE
	1139	!
	1140	!-- Actually this part of the programm should not be reached
[254]	1141	message_string = 'unknown initializing problem'
	1142	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
[1]	1143	ENDIF
	1144
[151]	1145
	1146	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
[1]	1147	!
[151]	1148	!-- Initialize old timelevels needed for radiation boundary conditions
	1149	IF ( outflow_l ) THEN
	1150	u_m_l(:,:,:) = u(:,:,1:2)
	1151	v_m_l(:,:,:) = v(:,:,0:1)
	1152	w_m_l(:,:,:) = w(:,:,0:1)
	1153	ENDIF
	1154	IF ( outflow_r ) THEN
	1155	u_m_r(:,:,:) = u(:,:,nx-1:nx)
	1156	v_m_r(:,:,:) = v(:,:,nx-1:nx)
	1157	w_m_r(:,:,:) = w(:,:,nx-1:nx)
	1158	ENDIF
	1159	IF ( outflow_s ) THEN
	1160	u_m_s(:,:,:) = u(:,0:1,:)
	1161	v_m_s(:,:,:) = v(:,1:2,:)
	1162	w_m_s(:,:,:) = w(:,0:1,:)
	1163	ENDIF
	1164	IF ( outflow_n ) THEN
	1165	u_m_n(:,:,:) = u(:,ny-1:ny,:)
	1166	v_m_n(:,:,:) = v(:,ny-1:ny,:)
	1167	w_m_n(:,:,:) = w(:,ny-1:ny,:)
	1168	ENDIF
[667]	1169
[151]	1170	ENDIF
[680]	1171
[667]	1172	!
	1173	!-- Calculate the initial volume flow at the right and north boundary
[709]	1174	IF ( conserve_volume_flow ) THEN
[151]	1175
[767]	1176	IF ( use_prescribed_profile_data ) THEN
[667]	1177
[732]	1178	volume_flow_initial_l = 0.0
	1179	volume_flow_area_l = 0.0
	1180
[667]	1181	IF ( nxr == nx ) THEN
	1182	DO j = nys, nyn
[709]	1183	DO k = nzb_2d(j,nx)+1, nzt
[667]	1184	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[767]	1185	u_init(k) * dzw(k)
	1186	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1187	ENDDO
	1188	ENDDO
	1189	ENDIF
	1190
	1191	IF ( nyn == ny ) THEN
	1192	DO i = nxl, nxr
	1193	DO k = nzb_2d(ny,i)+1, nzt
	1194	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1195	v_init(k) * dzw(k)
	1196	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1197	ENDDO
	1198	ENDDO
	1199	ENDIF
	1200
	1201	#if defined( __parallel )
	1202	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1203	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1204	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1205	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1206
	1207	#else
	1208	volume_flow_initial = volume_flow_initial_l
	1209	volume_flow_area = volume_flow_area_l
	1210	#endif
	1211
	1212	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1213
	1214	volume_flow_initial_l = 0.0
	1215	volume_flow_area_l = 0.0
	1216
	1217	IF ( nxr == nx ) THEN
	1218	DO j = nys, nyn
	1219	DO k = nzb_2d(j,nx)+1, nzt
	1220	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[667]	1221	hom_sum(k,1,0) * dzw(k)
	1222	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1223	ENDDO
	1224	ENDDO
	1225	ENDIF
	1226
	1227	IF ( nyn == ny ) THEN
	1228	DO i = nxl, nxr
[709]	1229	DO k = nzb_2d(ny,i)+1, nzt
[667]	1230	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
[709]	1231	hom_sum(k,2,0) * dzw(k)
[667]	1232	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1233	ENDDO
	1234	ENDDO
	1235	ENDIF
	1236
[732]	1237	#if defined( __parallel )
	1238	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1239	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1240	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1241	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1242
	1243	#else
	1244	volume_flow_initial = volume_flow_initial_l
	1245	volume_flow_area = volume_flow_area_l
	1246	#endif
	1247
[667]	1248	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	1249
[732]	1250	volume_flow_initial_l = 0.0
	1251	volume_flow_area_l = 0.0
	1252
[667]	1253	IF ( nxr == nx ) THEN
	1254	DO j = nys, nyn
[709]	1255	DO k = nzb_2d(j,nx)+1, nzt
[667]	1256	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[709]	1257	u(k,j,nx) * dzw(k)
[667]	1258	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1259	ENDDO
	1260	ENDDO
	1261	ENDIF
	1262
	1263	IF ( nyn == ny ) THEN
	1264	DO i = nxl, nxr
[709]	1265	DO k = nzb_2d(ny,i)+1, nzt
[667]	1266	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1267	v(k,ny,i) * dzw(k)
	1268	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1269	ENDDO
	1270	ENDDO
	1271	ENDIF
	1272
	1273	#if defined( __parallel )
[732]	1274	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1275	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1276	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1277	2, MPI_REAL, MPI_SUM, comm2d, ierr )
[667]	1278
	1279	#else
[732]	1280	volume_flow_initial = volume_flow_initial_l
	1281	volume_flow_area = volume_flow_area_l
[667]	1282	#endif
	1283
[732]	1284	ENDIF
	1285
[151]	1286	!
[709]	1287	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
	1288	!-- from u\|v_bulk instead
[680]	1289	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
	1290	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
	1291	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
	1292	ENDIF
[667]	1293
[680]	1294	ENDIF
	1295
[787]	1296	!
	1297	!-- Initialize quantities for special advections schemes
	1298	CALL init_advec
[680]	1299
[667]	1300	!
[680]	1301	!-- Impose random perturbation on the horizontal velocity field and then
	1302	!-- remove the divergences from the velocity field at the initial stage
	1303	IF ( create_disturbances .AND. &
	1304	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
	1305	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
	1306
	1307	CALL disturb_field( nzb_u_inner, tend, u )
	1308	CALL disturb_field( nzb_v_inner, tend, v )
	1309	n_sor = nsor_ini
	1310	CALL pres
	1311	n_sor = nsor
	1312	ENDIF
	1313
	1314	!
[138]	1315	!-- Initialization of the leaf area density
[709]	1316	IF ( plant_canopy ) THEN
[138]	1317
	1318	SELECT CASE ( TRIM( canopy_mode ) )
	1319
	1320	CASE( 'block' )
	1321
[667]	1322	DO i = nxlg, nxrg
	1323	DO j = nysg, nyng
[138]	1324	lad_s(:,j,i) = lad(:)
	1325	cdc(:,j,i) = drag_coefficient
[709]	1326	IF ( passive_scalar ) THEN
[153]	1327	sls(:,j,i) = leaf_surface_concentration
	1328	sec(:,j,i) = scalar_exchange_coefficient
	1329	ENDIF
[138]	1330	ENDDO
	1331	ENDDO
	1332
	1333	CASE DEFAULT
	1334
	1335	!
	1336	!-- The DEFAULT case is reached either if the parameter
	1337	!-- canopy mode contains a wrong character string or if the
	1338	!-- user has coded a special case in the user interface.
	1339	!-- There, the subroutine user_init_plant_canopy checks
	1340	!-- which of these two conditions applies.
	1341	CALL user_init_plant_canopy
	1342
	1343	END SELECT
	1344
[667]	1345	CALL exchange_horiz( lad_s, nbgp )
	1346	CALL exchange_horiz( cdc, nbgp )
[138]	1347
[709]	1348	IF ( passive_scalar ) THEN
[667]	1349	CALL exchange_horiz( sls, nbgp )
	1350	CALL exchange_horiz( sec, nbgp )
[153]	1351	ENDIF
	1352
	1353	!
	1354	!-- Sharp boundaries of the plant canopy in horizontal directions
	1355	!-- In vertical direction the interpolation is retained, as the leaf
	1356	!-- area density is initialised by prescribing a vertical profile
	1357	!-- consisting of piecewise linear segments. The upper boundary
	1358	!-- of the plant canopy is now defined by lad_w(pch_index,:,:) = 0.0.
	1359
[138]	1360	DO i = nxl, nxr
	1361	DO j = nys, nyn
	1362	DO k = nzb, nzt+1
[709]	1363	IF ( lad_s(k,j,i) > 0.0 ) THEN
[153]	1364	lad_u(k,j,i) = lad_s(k,j,i)
	1365	lad_u(k,j,i+1) = lad_s(k,j,i)
	1366	lad_v(k,j,i) = lad_s(k,j,i)
	1367	lad_v(k,j+1,i) = lad_s(k,j,i)
	1368	ENDIF
[138]	1369	ENDDO
	1370	DO k = nzb, nzt
	1371	lad_w(k,j,i) = 0.5 * ( lad_s(k+1,j,i) + lad_s(k,j,i) )
	1372	ENDDO
	1373	ENDDO
	1374	ENDDO
	1375
[153]	1376	lad_w(pch_index,:,:) = 0.0
	1377	lad_w(nzt+1,:,:) = lad_w(nzt,:,:)
[138]	1378
[667]	1379	CALL exchange_horiz( lad_u, nbgp )
	1380	CALL exchange_horiz( lad_v, nbgp )
	1381	CALL exchange_horiz( lad_w, nbgp )
[153]	1382
	1383	!
	1384	!-- Initialisation of the canopy heat source distribution
[709]	1385	IF ( cthf /= 0.0 ) THEN
[153]	1386	!
	1387	!-- Piecewise evaluation of the leaf area index by
	1388	!-- integration of the leaf area density
	1389	lai(:,:,:) = 0.0
[667]	1390	DO i = nxlg, nxrg
	1391	DO j = nysg, nyng
[153]	1392	DO k = pch_index-1, 0, -1
	1393	lai(k,j,i) = lai(k+1,j,i) + &
	1394	( 0.5 * ( lad_w(k+1,j,i) + &
	1395	lad_s(k+1,j,i) ) * &
	1396	( zw(k+1) - zu(k+1) ) ) + &
	1397	( 0.5 * ( lad_w(k,j,i) + &
	1398	lad_s(k+1,j,i) ) * &
	1399	( zu(k+1) - zw(k) ) )
	1400	ENDDO
	1401	ENDDO
	1402	ENDDO
	1403
	1404	!
	1405	!-- Evaluation of the upward kinematic vertical heat flux within the
	1406	!-- canopy
[667]	1407	DO i = nxlg, nxrg
	1408	DO j = nysg, nyng
[153]	1409	DO k = 0, pch_index
	1410	canopy_heat_flux(k,j,i) = cthf * &
	1411	exp( -0.6 * lai(k,j,i) )
	1412	ENDDO
	1413	ENDDO
	1414	ENDDO
	1415
	1416	!
	1417	!-- The near surface heat flux is derived from the heat flux
	1418	!-- distribution within the canopy
	1419	shf(:,:) = canopy_heat_flux(0,:,:)
	1420
[709]	1421	IF ( ASSOCIATED( shf_m ) ) shf_m = shf
[153]	1422
	1423	ENDIF
	1424
[138]	1425	ENDIF
	1426
	1427	!
[1]	1428	!-- If required, initialize dvrp-software
	1429	IF ( dt_dvrp /= 9999999.9 ) CALL init_dvrp
	1430
[96]	1431	IF ( ocean ) THEN
[1]	1432	!
[96]	1433	!-- Initialize quantities needed for the ocean model
	1434	CALL init_ocean
[388]	1435
[96]	1436	ELSE
	1437	!
	1438	!-- Initialize quantities for handling cloud physics
	1439	!-- This routine must be called before init_particles, because
	1440	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
	1441	!-- init_particles) is not defined.
	1442	CALL init_cloud_physics
	1443	ENDIF
[1]	1444
	1445	!
	1446	!-- If required, initialize particles
[63]	1447	IF ( particle_advection ) CALL init_particles
[1]	1448
	1449	!
[673]	1450	!-- Initialize the ws-scheme.
	1451	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
[1]	1452
	1453	!
[709]	1454	!-- Setting weighting factors for calculation of perturbation pressure
	1455	!-- and turbulent quantities from the RK substeps
	1456	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
	1457
[713]	1458	weight_substep(1) = 1./6.
	1459	weight_substep(2) = 3./10.
	1460	weight_substep(3) = 8./15.
[709]	1461
[713]	1462	weight_pres(1) = 1./3.
	1463	weight_pres(2) = 5./12.
	1464	weight_pres(3) = 1./4.
[709]	1465
	1466	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
	1467
[713]	1468	weight_substep(1) = 1./2.
	1469	weight_substep(2) = 1./2.
[673]	1470
[713]	1471	weight_pres(1) = 1./2.
	1472	weight_pres(2) = 1./2.
[709]	1473
	1474	ELSE ! for Euler- and leapfrog-method
	1475
[673]	1476	weight_substep(1) = 1.0
[709]	1477	weight_pres(1) = 1.0
	1478
[673]	1479	ENDIF
	1480
	1481	!
[1]	1482	!-- Initialize Rayleigh damping factors
[785]	1483	rdf = 0.0
	1484	rdf_sc = 0.0
[1]	1485	IF ( rayleigh_damping_factor /= 0.0 ) THEN
[108]	1486	IF ( .NOT. ocean ) THEN
	1487	DO k = nzb+1, nzt
	1488	IF ( zu(k) >= rayleigh_damping_height ) THEN
	1489	rdf(k) = rayleigh_damping_factor * &
[1]	1490	( SIN( pi * 0.5 * ( zu(k) - rayleigh_damping_height ) &
	1491	/ ( zu(nzt) - rayleigh_damping_height ) )&
	1492	)**2
[108]	1493	ENDIF
	1494	ENDDO
	1495	ELSE
	1496	DO k = nzt, nzb+1, -1
	1497	IF ( zu(k) <= rayleigh_damping_height ) THEN
	1498	rdf(k) = rayleigh_damping_factor * &
	1499	( SIN( pi * 0.5 * ( rayleigh_damping_height - zu(k) ) &
	1500	/ ( rayleigh_damping_height - zu(nzb+1)))&
	1501	)**2
	1502	ENDIF
	1503	ENDDO
	1504	ENDIF
[1]	1505	ENDIF
[785]	1506	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
[1]	1507
	1508	!
[240]	1509	!-- Initialize the starting level and the vertical smoothing factor used for
	1510	!-- the external pressure gradient
	1511	dp_smooth_factor = 1.0
	1512	IF ( dp_external ) THEN
	1513	!
	1514	!-- Set the starting level dp_level_ind_b only if it has not been set before
	1515	!-- (e.g. in init_grid).
	1516	IF ( dp_level_ind_b == 0 ) THEN
	1517	ind_array = MINLOC( ABS( dp_level_b - zu ) )
	1518	dp_level_ind_b = ind_array(1) - 1 + nzb
	1519	! MINLOC uses lower array bound 1
	1520	ENDIF
	1521	IF ( dp_smooth ) THEN
	1522	dp_smooth_factor(:dp_level_ind_b) = 0.0
	1523	DO k = dp_level_ind_b+1, nzt
	1524	dp_smooth_factor(k) = 0.5 * ( 1.0 + SIN( pi * &
	1525	( REAL( k - dp_level_ind_b ) / &
	1526	REAL( nzt - dp_level_ind_b ) - 0.5 ) ) )
	1527	ENDDO
	1528	ENDIF
	1529	ENDIF
	1530
	1531	!
[1]	1532	!-- Initialize diffusivities used within the outflow damping layer in case of
	1533	!-- non-cyclic lateral boundaries. A linear increase is assumed over the first
	1534	!-- half of the width of the damping layer
[707]	1535	IF ( bc_lr_dirrad ) THEN
[1]	1536
[667]	1537	DO i = nxlg, nxrg
[73]	1538	IF ( i >= nx - outflow_damping_width ) THEN
	1539	km_damp_x(i) = km_damp_max * MIN( 1.0, &
	1540	( i - ( nx - outflow_damping_width ) ) / &
	1541	REAL( outflow_damping_width/2 ) &
	1542	)
	1543	ELSE
	1544	km_damp_x(i) = 0.0
	1545	ENDIF
	1546	ENDDO
[1]	1547
[707]	1548	ELSEIF ( bc_lr_raddir ) THEN
[1]	1549
[667]	1550	DO i = nxlg, nxrg
[73]	1551	IF ( i <= outflow_damping_width ) THEN
	1552	km_damp_x(i) = km_damp_max * MIN( 1.0, &
	1553	( outflow_damping_width - i ) / &
	1554	REAL( outflow_damping_width/2 ) &
	1555	)
	1556	ELSE
	1557	km_damp_x(i) = 0.0
	1558	ENDIF
	1559	ENDDO
[1]	1560
[73]	1561	ENDIF
[1]	1562
[707]	1563	IF ( bc_ns_dirrad ) THEN
[1]	1564
[667]	1565	DO j = nysg, nyng
[73]	1566	IF ( j >= ny - outflow_damping_width ) THEN
	1567	km_damp_y(j) = km_damp_max * MIN( 1.0, &
	1568	( j - ( ny - outflow_damping_width ) ) / &
	1569	REAL( outflow_damping_width/2 ) &
	1570	)
	1571	ELSE
	1572	km_damp_y(j) = 0.0
[1]	1573	ENDIF
	1574	ENDDO
	1575
[707]	1576	ELSEIF ( bc_ns_raddir ) THEN
[1]	1577
[667]	1578	DO j = nysg, nyng
[73]	1579	IF ( j <= outflow_damping_width ) THEN
	1580	km_damp_y(j) = km_damp_max * MIN( 1.0, &
	1581	( outflow_damping_width - j ) / &
	1582	REAL( outflow_damping_width/2 ) &
	1583	)
	1584	ELSE
	1585	km_damp_y(j) = 0.0
[1]	1586	ENDIF
[73]	1587	ENDDO
[1]	1588
	1589	ENDIF
	1590
	1591	!
[709]	1592	!-- Initialize local summation arrays for routine flow_statistics.
	1593	!-- This is necessary because they may not yet have been initialized when they
	1594	!-- are called from flow_statistics (or - depending on the chosen model run -
	1595	!-- are never initialized)
[1]	1596	sums_divnew_l = 0.0
	1597	sums_divold_l = 0.0
	1598	sums_l_l = 0.0
	1599	sums_up_fraction_l = 0.0
	1600	sums_wsts_bc_l = 0.0
	1601
	1602	!
	1603	!-- Pre-set masks for regional statistics. Default is the total model domain.
	1604	rmask = 1.0
	1605
	1606	!
[51]	1607	!-- User-defined initializing actions. Check afterwards, if maximum number
[709]	1608	!-- of allowed timeseries is exceeded
[1]	1609	CALL user_init
	1610
[51]	1611	IF ( dots_num > dots_max ) THEN
[254]	1612	WRITE( message_string, * ) 'number of time series quantities exceeds', &
[274]	1613	' its maximum of dots_max = ', dots_max, &
[254]	1614	' &Please increase dots_max in modules.f90.'
	1615	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
[51]	1616	ENDIF
	1617
[1]	1618	!
	1619	!-- Input binary data file is not needed anymore. This line must be placed
	1620	!-- after call of user_init!
	1621	CALL close_file( 13 )
	1622
	1623	!
	1624	!-- Compute total sum of active mask grid points
	1625	!-- ngp_2dh: number of grid points of a horizontal cross section through the
	1626	!-- total domain
	1627	!-- ngp_3d: number of grid points of the total domain
[132]	1628	ngp_2dh_outer_l = 0
	1629	ngp_2dh_outer = 0
	1630	ngp_2dh_s_inner_l = 0
	1631	ngp_2dh_s_inner = 0
	1632	ngp_2dh_l = 0
	1633	ngp_2dh = 0
[485]	1634	ngp_3d_inner_l = 0.0
[132]	1635	ngp_3d_inner = 0
	1636	ngp_3d = 0
	1637	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
[1]	1638
	1639	DO sr = 0, statistic_regions
	1640	DO i = nxl, nxr
	1641	DO j = nys, nyn
	1642	IF ( rmask(j,i,sr) == 1.0 ) THEN
	1643	!
	1644	!-- All xy-grid points
	1645	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1646	!
	1647	!-- xy-grid points above topography
	1648	DO k = nzb_s_outer(j,i), nz + 1
	1649	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
	1650	ENDDO
[132]	1651	DO k = nzb_s_inner(j,i), nz + 1
	1652	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
	1653	ENDDO
[1]	1654	!
	1655	!-- All grid points of the total domain above topography
	1656	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
	1657	( nz - nzb_s_inner(j,i) + 2 )
	1658	ENDIF
	1659	ENDDO
	1660	ENDDO
	1661	ENDDO
	1662
	1663	sr = statistic_regions + 1
	1664	#if defined( __parallel )
[622]	1665	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1666	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
[1]	1667	comm2d, ierr )
[622]	1668	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1669	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
[1]	1670	MPI_INTEGER, MPI_SUM, comm2d, ierr )
[622]	1671	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1672	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
[132]	1673	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
[622]	1674	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1675	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
[1]	1676	MPI_SUM, comm2d, ierr )
[485]	1677	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
[1]	1678	#else
[132]	1679	ngp_2dh = ngp_2dh_l
	1680	ngp_2dh_outer = ngp_2dh_outer_l
	1681	ngp_2dh_s_inner = ngp_2dh_s_inner_l
[485]	1682	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
[1]	1683	#endif
	1684
[560]	1685	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
	1686	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
[1]	1687
	1688	!
	1689	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
	1690	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
	1691	!-- the respective subdomain lie below the surface topography
[667]	1692	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
[631]	1693	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
	1694	ngp_3d_inner(:) )
[667]	1695	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
[1]	1696
[485]	1697	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, ngp_3d_inner_tmp )
[1]	1698
	1699
	1700	END SUBROUTINE init_3d_model

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