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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1079

Last change on this file since 1079 was 1073, checked in by raasch, 12 years ago
FORTRAN bugfix for r1072
Property svn:keywords set to `Id`
File size: 63.1 KB

Rev	Line
[1]	1	#if defined( __ibmy_special )
	2	@PROCESS NOOPTimize
	3	#endif
	4	SUBROUTINE init_3d_model
	5
[1036]	6	!--------------------------------------------------------------------------------!
	7	! This file is part of PALM.
	8	!
	9	! PALM is free software: you can redistribute it and/or modify it under the terms
	10	! of the GNU General Public License as published by the Free Software Foundation,
	11	! either version 3 of the License, or (at your option) any later version.
	12	!
	13	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
	14	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
	15	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
	16	!
	17	! You should have received a copy of the GNU General Public License along with
	18	! PALM. If not, see <http://www.gnu.org/licenses/>.
	19	!
	20	! Copyright 1997-2012 Leibniz University Hannover
	21	!--------------------------------------------------------------------------------!
	22	!
[254]	23	! Current revisions:
[732]	24	! ------------------
[1054]	25	!
	26	! Former revisions:
	27	! -----------------
	28	! $Id: init_3d_model.f90 1073 2012-12-03 07:15:41Z maronga $
	29	!
[1066]	30	! 1065 2012-11-22 17:42:36Z hoffmann
	31	! allocation of diss (dissipation rate) in case of turbulence = .TRUE. added
	32	!
[1054]	33	! 1053 2012-11-13 17:11:03Z hoffmann
[1053]	34	! allocation and initialisation of necessary data arrays for the two-moment
	35	! cloud physics scheme the two new prognostic equations (nr, qr):
	36	! +dr, lambda_r, mu_r, sed_, xr, s, sws, swst, , _p, t_m, _1, _2, _3,
	37	! +tend_*, prr
[979]	38	!
[1037]	39	! 1036 2012-10-22 13:43:42Z raasch
	40	! code put under GPL (PALM 3.9)
	41	!
[1033]	42	! 1032 2012-10-21 13:03:21Z letzel
	43	! save memory by not allocating pt_2 in case of neutral = .T.
	44	!
[1026]	45	! 1025 2012-10-07 16:04:41Z letzel
	46	! bugfix: swap indices of mask for ghost boundaries
	47	!
[1017]	48	! 1015 2012-09-27 09:23:24Z raasch
	49	! mask is set to zero for ghost boundaries
	50	!
[1011]	51	! 1010 2012-09-20 07:59:54Z raasch
	52	! cpp switch __nopointer added for pointer free version
	53	!
[1004]	54	! 1003 2012-09-14 14:35:53Z raasch
	55	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
	56	!
[1002]	57	! 1001 2012-09-13 14:08:46Z raasch
	58	! all actions concerning leapfrog scheme removed
	59	!
[997]	60	! 996 2012-09-07 10:41:47Z raasch
	61	! little reformatting
	62	!
[979]	63	! 978 2012-08-09 08:28:32Z fricke
[978]	64	! outflow damping layer removed
	65	! roughness length for scalar quantites z0h added
	66	! damping zone for the potential temperatur in case of non-cyclic lateral
	67	! boundaries added
	68	! initialization of ptdf_x, ptdf_y
	69	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
[708]	70	!
[850]	71	! 849 2012-03-15 10:35:09Z raasch
	72	! init_particles renamed lpm_init
	73	!
[826]	74	! 825 2012-02-19 03:03:44Z raasch
	75	! wang_collision_kernel renamed wang_kernel
	76	!
[791]	77	! 790 2011-11-29 03:11:20Z raasch
	78	! diss is also allocated in case that the Wang kernel is used
	79	!
[788]	80	! 787 2011-11-28 12:49:05Z heinze $
	81	! bugfix: call init_advec in every case - not only for inital runs
	82	!
[786]	83	! 785 2011-11-28 09:47:19Z raasch
	84	! initialization of rdf_sc
	85	!
[768]	86	! 767 2011-10-14 06:39:12Z raasch
	87	! adjustments concerning implementation of prescribed u,v-profiles
	88	! bugfix: dirichlet_0 conditions for ug/vg moved to check_parameters
	89	!
[760]	90	! 759 2011-09-15 13:58:31Z raasch
	91	! Splitting of parallel I/O in blocks of PEs
	92	! Bugfix: No zero assignments to volume_flow_initial and volume_flow_area in
	93	! case of normal restart runs.
	94	!
[714]	95	! 713 2011-03-30 14:21:21Z suehring
[732]	96	! weight_substep and weight_pres are given as fractions.
[714]	97	!
[710]	98	! 709 2011-03-30 09:31:40Z raasch
	99	! formatting adjustments
	100	!
[708]	101	! 707 2011-03-29 11:39:40Z raasch
[707]	102	! p_sub renamed p_loc and allocated depending on the chosen pressure solver,
	103	! initial assignments of zero to array p for iterative solvers only,
	104	! bc_lr/ns replaced by bc_lr/ns_dirrad/raddir
[674]	105	!
[708]	106	! 680 2011-02-04 23:16:06Z gryschka
[681]	107	! bugfix: volume_flow_control
[668]	108	!
[674]	109	! 673 2011-01-18 16:19:48Z suehring
	110	! weight_substep (moved from advec_ws) and weight_pres added.
	111	! Allocate p_sub when using Multigrid or SOR solver.
	112	! Call of ws_init moved behind the if requests.
	113	!
[668]	114	! 667 2010-12-23 12:06:00Z suehring/gryschka
[667]	115	! nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng in loops and
	116	! allocation of arrays. Calls of exchange_horiz are modified.
[709]	117	! Call ws_init to initialize arrays needed for calculating statisticas and for
[667]	118	! optimization when ws-scheme is used.
	119	! Initial volume flow is now calculated by using the variable hom_sum.
	120	! Therefore the correction of initial volume flow for non-flat topography
	121	! removed (removed u_nzb_p1_for_vfc and v_nzb_p1_for_vfc)
	122	! Changed surface boundary conditions for u and v in case of ibc_uv_b == 0 from
[709]	123	! mirror to Dirichlet boundary conditions (u=v=0), so that k=nzb is
	124	! representative for the height z0.
[667]	125	! Bugfix: type conversion of '1' to 64bit for the MAX function (ngp_3d_inner)
	126	!
[623]	127	! 622 2010-12-10 08:08:13Z raasch
	128	! optional barriers included in order to speed up collective operations
	129	!
[561]	130	! 560 2010-09-09 10:06:09Z weinreis
	131	! bugfix: correction of calculating ngp_3d for 64 bit
	132	!
[486]	133	! 485 2010-02-05 10:57:51Z raasch
	134	! calculation of ngp_3d + ngp_3d_inner changed because they have now 64 bit
	135	!
[482]	136	! 407 2009-12-01 15:01:15Z maronga
	137	! var_ts is replaced by dots_max
	138	! Enabled passive scalar/humidity wall fluxes for non-flat topography
	139	!
[392]	140	! 388 2009-09-23 09:40:33Z raasch
[388]	141	! Initialization of prho added.
[359]	142	! bugfix: correction of initial volume flow for non-flat topography
	143	! bugfix: zero initialization of arrays within buildings for 'cyclic_fill'
[333]	144	! bugfix: avoid that ngp_2dh_s_inner becomes zero
[328]	145	! initializing_actions='read_data_for_recycling' renamed to 'cyclic_fill', now
	146	! independent of turbulent_inflow
[254]	147	! Output of messages replaced by message handling routine.
[240]	148	! Set the starting level and the vertical smoothing factor used for
	149	! the external pressure gradient
[254]	150	! +conserve_volume_flow_mode: 'default', 'initial_profiles', 'inflow_profile'
[241]	151	! and 'bulk_velocity'
[292]	152	! If the inversion height calculated by the prerun is zero,
	153	! inflow_damping_height must be explicitly specified.
[139]	154	!
[198]	155	! 181 2008-07-30 07:07:47Z raasch
	156	! bugfix: zero assignments to tendency arrays in case of restarts,
	157	! further extensions and modifications in the initialisation of the plant
	158	! canopy model,
	159	! allocation of hom_sum moved to parin, initialization of spectrum_x\|y directly
	160	! after allocating theses arrays,
	161	! read data for recycling added as new initialization option,
	162	! dummy allocation for diss
	163	!
[139]	164	! 138 2007-11-28 10:03:58Z letzel
[132]	165	! New counter ngp_2dh_s_inner.
	166	! Allow new case bc_uv_t = 'dirichlet_0' for channel flow.
	167	! Corrected calculation of initial volume flow for 'set_1d-model_profiles' and
	168	! 'set_constant_profiles' in case of buildings in the reference cross-sections.
[77]	169	!
[110]	170	! 108 2007-08-24 15:10:38Z letzel
	171	! Flux initialization in case of coupled runs, +momentum fluxes at top boundary,
	172	! +arrays for phase speed c_u, c_v, c_w, indices for u\|v\|w_m_l\|r changed
	173	! +qswst_remote in case of atmosphere model with humidity coupled to ocean
	174	! Rayleigh damping for ocean, optionally calculate km and kh from initial
	175	! TKE e_init
	176	!
[98]	177	! 97 2007-06-21 08:23:15Z raasch
	178	! Initialization of salinity, call of init_ocean
	179	!
[90]	180	! 87 2007-05-22 15:46:47Z raasch
	181	! var_hom and var_sum renamed pr_palm
	182	!
[77]	183	! 75 2007-03-22 09:54:05Z raasch
[73]	184	! Arrays for radiation boundary conditions are allocated (u_m_l, u_m_r, etc.),
	185	! bugfix for cases with the outflow damping layer extending over more than one
[75]	186	! subdomain, moisture renamed humidity,
	187	! new initializing action "by_user" calls user_init_3d_model,
[72]	188	! precipitation_amount/rate, ts_value are allocated, +module netcdf_control,
[51]	189	! initial velocities at nzb+1 are regarded for volume
	190	! flow control in case they have been set zero before (to avoid small timesteps)
[75]	191	! -uvmean_outflow, uxrp, vynp eliminated
[1]	192	!
[39]	193	! 19 2007-02-23 04:53:48Z raasch
	194	! +handling of top fluxes
	195	!
[3]	196	! RCS Log replace by Id keyword, revision history cleaned up
	197	!
[1]	198	! Revision 1.49 2006/08/22 15:59:07 raasch
	199	! No optimization of this file on the ibmy (Yonsei Univ.)
	200	!
	201	! Revision 1.1 1998/03/09 16:22:22 raasch
	202	! Initial revision
	203	!
	204	!
	205	! Description:
	206	! ------------
	207	! Allocation of arrays and initialization of the 3D model via
	208	! a) pre-run the 1D model
	209	! or
	210	! b) pre-set constant linear profiles
	211	! or
	212	! c) read values of a previous run
	213	!------------------------------------------------------------------------------!
	214
[667]	215	USE advec_ws
[1]	216	USE arrays_3d
	217	USE averaging
[72]	218	USE cloud_parameters
[1]	219	USE constants
	220	USE control_parameters
	221	USE cpulog
[978]	222	USE grid_variables
[1]	223	USE indices
	224	USE interfaces
	225	USE model_1d
[51]	226	USE netcdf_control
[1]	227	USE particle_attributes
	228	USE pegrid
	229	USE profil_parameter
	230	USE random_function_mod
	231	USE statistics
	232
	233	IMPLICIT NONE
	234
[559]	235	INTEGER :: i, ind_array(1), j, k, sr
[1]	236
[485]	237	INTEGER, DIMENSION(:), ALLOCATABLE :: ngp_2dh_l
[1]	238
[132]	239	INTEGER, DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l, &
[996]	240	ngp_2dh_s_inner_l
[1]	241
[153]	242	REAL :: a, b
	243
[1]	244	REAL, DIMENSION(1:2) :: volume_flow_area_l, volume_flow_initial_l
	245
[485]	246	REAL, DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l, ngp_3d_inner_tmp
[1]	247
[485]	248
[1]	249	!
	250	!-- Allocate arrays
	251	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
	252	ngp_3d(0:statistic_regions), &
	253	ngp_3d_inner(0:statistic_regions), &
	254	ngp_3d_inner_l(0:statistic_regions), &
[485]	255	ngp_3d_inner_tmp(0:statistic_regions), &
[1]	256	sums_divnew_l(0:statistic_regions), &
	257	sums_divold_l(0:statistic_regions) )
[785]	258	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
[143]	259	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
[1]	260	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
[132]	261	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
	262	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
[996]	263	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
[87]	264	sums(nzb:nzt+1,pr_palm+max_pr_user), &
	265	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
[1]	266	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
	267	sums_up_fraction_l(10,3,0:statistic_regions), &
[48]	268	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
[394]	269	ts_value(dots_max,0:statistic_regions) )
[978]	270	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
[1]	271
[1001]	272	ALLOCATE( rif(nysg:nyng,nxlg:nxrg), shf(nysg:nyng,nxlg:nxrg), &
	273	ts(nysg:nyng,nxlg:nxrg), tswst(nysg:nyng,nxlg:nxrg), &
	274	us(nysg:nyng,nxlg:nxrg), usws(nysg:nyng,nxlg:nxrg), &
	275	uswst(nysg:nyng,nxlg:nxrg), vsws(nysg:nyng,nxlg:nxrg), &
	276	vswst(nysg:nyng,nxlg:nxrg), z0(nysg:nyng,nxlg:nxrg), &
[978]	277	z0h(nysg:nyng,nxlg:nxrg) )
[1]	278
[1010]	279	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
	280	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	281	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	282	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	283	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	284
	285	#if defined( __nopointer )
	286	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	287	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	288	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	289	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	290	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	291	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	292	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	293	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	294	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	295	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	296	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	297	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	298	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	299	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	300	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	301	#else
	302	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	303	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	304	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	305	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	306	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	307	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	308	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	309	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	310	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	311	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	312	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	313	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	314	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	315	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1032]	316	IF ( .NOT. neutral ) THEN
	317	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	318	ENDIF
[1010]	319	#endif
	320
[673]	321	!
[707]	322	!-- Following array is required for perturbation pressure within the iterative
	323	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
	324	!-- the weighted average of the substeps and cannot be used in the Poisson
	325	!-- solver.
	326	IF ( psolver == 'sor' ) THEN
	327	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	328	ELSEIF ( psolver == 'multigrid' ) THEN
	329	!
	330	!-- For performance reasons, multigrid is using one ghost layer only
	331	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[673]	332	ENDIF
[1]	333
[75]	334	IF ( humidity .OR. passive_scalar ) THEN
[1]	335	!
[75]	336	!-- 2D-humidity/scalar arrays
[1001]	337	ALLOCATE ( qs(nysg:nyng,nxlg:nxrg), &
	338	qsws(nysg:nyng,nxlg:nxrg), &
	339	qswst(nysg:nyng,nxlg:nxrg) )
[1]	340
	341	!
[75]	342	!-- 3D-humidity/scalar arrays
[1010]	343	#if defined( __nopointer )
	344	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	345	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	346	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	347	#else
[667]	348	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	349	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	350	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	351	#endif
[1]	352
	353	!
[75]	354	!-- 3D-arrays needed for humidity only
	355	IF ( humidity ) THEN
[1010]	356	#if defined( __nopointer )
	357	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	358	#else
[667]	359	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	360	#endif
[1]	361
	362	IF ( cloud_physics ) THEN
[1053]	363
[1]	364	!
	365	!-- Liquid water content
[1010]	366	#if defined( __nopointer )
	367	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	368	#else
[667]	369	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	370	#endif
[72]	371	!
	372	!-- Precipitation amount and rate (only needed if output is switched)
[667]	373	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
	374	precipitation_rate(nysg:nyng,nxlg:nxrg) )
[1053]	375
	376	IF ( icloud_scheme == 0 ) THEN
	377	!
	378	!-- 1D-rain sedimentation fluxes and rain drop size distribution
	379	!-- properties
	380	ALLOCATE ( dr(nzb:nzt+1), lambda_r(nzb:nzt+1), &
	381	mu_r(nzb:nzt+1), sed_q(nzb:nzt+1), &
	382	sed_qr(nzb:nzt+1), sed_nr(nzb:nzt+1),&
	383	xr(nzb:nzt+1) )
	384	!
	385	!-- 2D-rain water content and rain drop concentration arrays
	386	ALLOCATE ( qrs(nysg:nyng,nxlg:nxrg), &
	387	qrsws(nysg:nyng,nxlg:nxrg), &
	388	qrswst(nysg:nyng,nxlg:nxrg), &
	389	nrs(nysg:nyng,nxlg:nxrg), &
	390	nrsws(nysg:nyng,nxlg:nxrg), &
	391	nrswst(nysg:nyng,nxlg:nxrg) )
	392	!
	393	!-- 3D-rain water content, rain drop concentration arrays
	394	#if defined( __nopointer )
	395	ALLOCATE( nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	396	nr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	397	qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	398	qr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	399	tnr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	400	tqr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	401	#else
	402	ALLOCATE( nr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	403	nr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	404	nr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	405	qr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	406	qr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	407	qr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	408	#endif
	409	!
	410	!-- 3D-tendency arrays
	411	ALLOCATE( tend_nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	412	tend_pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	413	tend_q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	414	tend_qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	415	!
	416	!-- 3d-precipitation rate
	417	IF ( precipitation ) THEN
	418	ALLOCATE( prr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	419	ENDIF
	420
	421	ENDIF
[1]	422	ENDIF
	423
	424	IF ( cloud_droplets ) THEN
	425	!
[1010]	426	!-- Liquid water content, change in liquid water content
	427	#if defined( __nopointer )
	428	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	429	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	430	#else
[667]	431	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1010]	432	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	433	#endif
	434	!
	435	!-- Real volume of particles (with weighting), volume of particles
	436	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	437	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1]	438	ENDIF
	439
	440	ENDIF
	441
	442	ENDIF
	443
[94]	444	IF ( ocean ) THEN
[1001]	445	ALLOCATE( saswsb(nysg:nyng,nxlg:nxrg), &
	446	saswst(nysg:nyng,nxlg:nxrg) )
[1010]	447	#if defined( __nopointer )
	448	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	449	rho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	450	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	451	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	452	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	453	#else
[667]	454	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	455	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	456	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	457	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	458	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[388]	459	prho => prho_1
	460	rho => rho_1 ! routines calc_mean_profile and diffusion_e require
	461	! density to be apointer
[1010]	462	#endif
[108]	463	IF ( humidity_remote ) THEN
[667]	464	ALLOCATE( qswst_remote(nysg:nyng,nxlg:nxrg))
[108]	465	qswst_remote = 0.0
	466	ENDIF
[94]	467	ENDIF
	468
[1]	469	!
	470	!-- 3D-array for storing the dissipation, needed for calculating the sgs
	471	!-- particle velocities
[1065]	472	IF ( use_sgs_for_particles .OR. wang_kernel .OR. turbulence ) THEN
[667]	473	ALLOCATE ( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[181]	474	ELSE
	475	ALLOCATE ( diss(2,2,2) ) ! required because diss is used as a
	476	! formal parameter
[1]	477	ENDIF
	478
	479	IF ( dt_dosp /= 9999999.9 ) THEN
	480	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
	481	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
[146]	482	spectrum_x = 0.0
	483	spectrum_y = 0.0
[1]	484	ENDIF
	485
	486	!
[138]	487	!-- 3D-arrays for the leaf area density and the canopy drag coefficient
	488	IF ( plant_canopy ) THEN
[667]	489	ALLOCATE ( lad_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	490	lad_u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	491	lad_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	492	lad_w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	493	cdc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[153]	494
	495	IF ( passive_scalar ) THEN
[996]	496	ALLOCATE ( sls(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	497	sec(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[153]	498	ENDIF
	499
	500	IF ( cthf /= 0.0 ) THEN
[996]	501	ALLOCATE ( lai(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	502	canopy_heat_flux(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[153]	503	ENDIF
	504
[138]	505	ENDIF
	506
	507	!
[51]	508	!-- 4D-array for storing the Rif-values at vertical walls
	509	IF ( topography /= 'flat' ) THEN
[667]	510	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
[51]	511	rif_wall = 0.0
	512	ENDIF
	513
	514	!
[106]	515	!-- Arrays to store velocity data from t-dt and the phase speeds which
	516	!-- are needed for radiation boundary conditions
[73]	517	IF ( outflow_l ) THEN
[667]	518	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
	519	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
	520	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
[73]	521	ENDIF
	522	IF ( outflow_r ) THEN
[667]	523	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	524	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	525	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
[73]	526	ENDIF
[106]	527	IF ( outflow_l .OR. outflow_r ) THEN
[667]	528	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
	529	c_w(nzb:nzt+1,nysg:nyng) )
[106]	530	ENDIF
[73]	531	IF ( outflow_s ) THEN
[667]	532	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
	533	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
	534	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
[73]	535	ENDIF
	536	IF ( outflow_n ) THEN
[667]	537	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	538	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	539	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
[73]	540	ENDIF
[106]	541	IF ( outflow_s .OR. outflow_n ) THEN
[667]	542	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
	543	c_w(nzb:nzt+1,nxlg:nxrg) )
[106]	544	ENDIF
[996]	545	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
[978]	546	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
	547	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
	548	ENDIF
[73]	549
[978]	550
[1010]	551	#if ! defined( __nopointer )
[73]	552	!
[1]	553	!-- Initial assignment of the pointers
[1001]	554	e => e_1; e_p => e_2; te_m => e_3
[1032]	555	IF ( .NOT. neutral ) THEN
	556	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
	557	ELSE
	558	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
	559	ENDIF
[1001]	560	u => u_1; u_p => u_2; tu_m => u_3
	561	v => v_1; v_p => v_2; tv_m => v_3
	562	w => w_1; w_p => w_2; tw_m => w_3
[1]	563
[1001]	564	IF ( humidity .OR. passive_scalar ) THEN
	565	q => q_1; q_p => q_2; tq_m => q_3
[1053]	566	IF ( humidity ) THEN
	567	vpt => vpt_1
	568	IF ( cloud_physics ) THEN
	569	ql => ql_1
	570	IF ( icloud_scheme == 0 ) THEN
	571	qr => qr_1; qr_p => qr_2; tqr_m => qr_3
	572	nr => nr_1; nr_p => nr_2; tnr_m => nr_3
	573	ENDIF
	574	ENDIF
	575	ENDIF
[1001]	576	IF ( cloud_droplets ) THEN
	577	ql => ql_1
	578	ql_c => ql_2
[1]	579	ENDIF
[1001]	580	ENDIF
[1]	581
[1001]	582	IF ( ocean ) THEN
	583	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
	584	ENDIF
[1010]	585	#endif
[1]	586
	587	!
[709]	588	!-- Allocate arrays containing the RK coefficient for calculation of
	589	!-- perturbation pressure and turbulent fluxes. At this point values are
	590	!-- set for pressure calculation during initialization (where no timestep
	591	!-- is done). Further below the values needed within the timestep scheme
	592	!-- will be set.
	593	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
[673]	594	weight_pres(1:intermediate_timestep_count_max) )
[709]	595	weight_substep = 1.0
	596	weight_pres = 1.0
	597	intermediate_timestep_count = 1 ! needed when simulated_time = 0.0
[673]	598
	599	!
[1]	600	!-- Initialize model variables
[147]	601	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[328]	602	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[1]	603	!
	604	!-- First model run of a possible job queue.
	605	!-- Initial profiles of the variables must be computes.
	606	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
	607	!
	608	!-- Use solutions of the 1D model as initial profiles,
	609	!-- start 1D model
	610	CALL init_1d_model
	611	!
	612	!-- Transfer initial profiles to the arrays of the 3D model
[667]	613	DO i = nxlg, nxrg
	614	DO j = nysg, nyng
[1]	615	e(:,j,i) = e1d
	616	kh(:,j,i) = kh1d
	617	km(:,j,i) = km1d
	618	pt(:,j,i) = pt_init
	619	u(:,j,i) = u1d
	620	v(:,j,i) = v1d
	621	ENDDO
	622	ENDDO
	623
[75]	624	IF ( humidity .OR. passive_scalar ) THEN
[667]	625	DO i = nxlg, nxrg
	626	DO j = nysg, nyng
[1]	627	q(:,j,i) = q_init
	628	ENDDO
	629	ENDDO
[1053]	630	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	631	DO i = nxlg, nxrg
	632	DO j = nysg, nyng
	633	qr(:,j,i) = qr_init
	634	nr(:,j,i) = nr_init
	635	ENDDO
	636	ENDDO
	637	ENDIF
[1]	638	ENDIF
	639
	640	IF ( .NOT. constant_diffusion ) THEN
[667]	641	DO i = nxlg, nxrg
	642	DO j = nysg, nyng
[1]	643	e(:,j,i) = e1d
	644	ENDDO
	645	ENDDO
	646	!
	647	!-- Store initial profiles for output purposes etc.
	648	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	649
	650	IF ( prandtl_layer ) THEN
	651	rif = rif1d(nzb+1)
	652	ts = 0.0 ! could actually be computed more accurately in the
	653	! 1D model. Update when opportunity arises.
	654	us = us1d
	655	usws = usws1d
	656	vsws = vsws1d
	657	ELSE
	658	ts = 0.0 ! must be set, because used in
	659	rif = 0.0 ! flowste
	660	us = 0.0
	661	usws = 0.0
	662	vsws = 0.0
	663	ENDIF
	664
	665	ELSE
	666	e = 0.0 ! must be set, because used in
	667	rif = 0.0 ! flowste
	668	ts = 0.0
	669	us = 0.0
	670	usws = 0.0
	671	vsws = 0.0
	672	ENDIF
[102]	673	uswst = top_momentumflux_u
	674	vswst = top_momentumflux_v
[1]	675
	676	!
	677	!-- In every case qs = 0.0 (see also pt)
	678	!-- This could actually be computed more accurately in the 1D model.
	679	!-- Update when opportunity arises!
[1053]	680	IF ( humidity .OR. passive_scalar ) THEN
	681	qs = 0.0
	682	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	683	qrs = 0.0
	684	nrs = 0.0
	685	ENDIF
	686	ENDIF
[1]	687
	688	!
	689	!-- inside buildings set velocities back to zero
	690	IF ( topography /= 'flat' ) THEN
	691	DO i = nxl-1, nxr+1
	692	DO j = nys-1, nyn+1
	693	u(nzb:nzb_u_inner(j,i),j,i) = 0.0
	694	v(nzb:nzb_v_inner(j,i),j,i) = 0.0
	695	ENDDO
	696	ENDDO
[667]	697
[1]	698	!
	699	!-- WARNING: The extra boundary conditions set after running the
	700	!-- ------- 1D model impose an error on the divergence one layer
	701	!-- below the topography; need to correct later
	702	!-- ATTENTION: Provisional correction for Piacsek & Williams
	703	!-- --------- advection scheme: keep u and v zero one layer below
	704	!-- the topography.
[667]	705	IF ( ibc_uv_b == 1 ) THEN
	706	!
[1]	707	!-- Neumann condition
	708	DO i = nxl-1, nxr+1
	709	DO j = nys-1, nyn+1
	710	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
	711	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
	712	ENDDO
	713	ENDDO
	714
	715	ENDIF
	716
	717	ENDIF
	718
	719	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
	720	THEN
	721	!
	722	!-- Use constructed initial profiles (velocity constant with height,
	723	!-- temperature profile with constant gradient)
[667]	724	DO i = nxlg, nxrg
	725	DO j = nysg, nyng
[1]	726	pt(:,j,i) = pt_init
	727	u(:,j,i) = u_init
	728	v(:,j,i) = v_init
	729	ENDDO
	730	ENDDO
[75]	731
[1]	732	!
[292]	733	!-- Set initial horizontal velocities at the lowest computational grid
	734	!-- levels to zero in order to avoid too small time steps caused by the
	735	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
	736	!-- in the limiting formula!). The original values are stored to be later
	737	!-- used for volume flow control.
[667]	738	DO i = nxlg, nxrg
	739	DO j = nysg, nyng
[1]	740	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0
	741	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0
	742	ENDDO
	743	ENDDO
	744
[75]	745	IF ( humidity .OR. passive_scalar ) THEN
[667]	746	DO i = nxlg, nxrg
	747	DO j = nysg, nyng
[1]	748	q(:,j,i) = q_init
	749	ENDDO
	750	ENDDO
[1053]	751	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	752	DO i = nxlg, nxrg
	753	DO j = nysg, nyng
	754	qr(:,j,i) = qr_init
	755	nr(:,j,i) = nr_init
	756	ENDDO
	757	ENDDO
	758	ENDIF
[1]	759	ENDIF
	760
[94]	761	IF ( ocean ) THEN
[667]	762	DO i = nxlg, nxrg
	763	DO j = nysg, nyng
[94]	764	sa(:,j,i) = sa_init
	765	ENDDO
	766	ENDDO
	767	ENDIF
[1]	768
	769	IF ( constant_diffusion ) THEN
	770	km = km_constant
	771	kh = km / prandtl_number
[108]	772	e = 0.0
	773	ELSEIF ( e_init > 0.0 ) THEN
	774	DO k = nzb+1, nzt
	775	km(k,:,:) = 0.1 * l_grid(k) * SQRT( e_init )
	776	ENDDO
	777	km(nzb,:,:) = km(nzb+1,:,:)
	778	km(nzt+1,:,:) = km(nzt,:,:)
	779	kh = km / prandtl_number
	780	e = e_init
[1]	781	ELSE
[108]	782	IF ( .NOT. ocean ) THEN
	783	kh = 0.01 ! there must exist an initial diffusion, because
	784	km = 0.01 ! otherwise no TKE would be produced by the
	785	! production terms, as long as not yet
	786	! e = (u/cm)*2 at k=nzb+1
	787	ELSE
	788	kh = 0.00001
	789	km = 0.00001
	790	ENDIF
	791	e = 0.0
[1]	792	ENDIF
[102]	793	rif = 0.0
	794	ts = 0.0
	795	us = 0.0
	796	usws = 0.0
	797	uswst = top_momentumflux_u
	798	vsws = 0.0
	799	vswst = top_momentumflux_v
[75]	800	IF ( humidity .OR. passive_scalar ) qs = 0.0
[1]	801
	802	!
	803	!-- Compute initial temperature field and other constants used in case
	804	!-- of a sloping surface
	805	IF ( sloping_surface ) CALL init_slope
	806
[46]	807	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
	808	THEN
	809	!
	810	!-- Initialization will completely be done by the user
	811	CALL user_init_3d_model
	812
[1]	813	ENDIF
[667]	814	!
	815	!-- Bottom boundary
	816	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
	817	u(nzb,:,:) = 0.0
	818	v(nzb,:,:) = 0.0
	819	ENDIF
[1]	820
	821	!
[151]	822	!-- Apply channel flow boundary condition
[132]	823	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
	824	u(nzt+1,:,:) = 0.0
	825	v(nzt+1,:,:) = 0.0
	826	ENDIF
	827
	828	!
[1]	829	!-- Calculate virtual potential temperature
[75]	830	IF ( humidity ) vpt = pt * ( 1.0 + 0.61 * q )
[1]	831
	832	!
	833	!-- Store initial profiles for output purposes etc.
	834	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	835	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
[667]	836	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
	837	hom(nzb,1,5,:) = 0.0
	838	hom(nzb,1,6,:) = 0.0
[1]	839	ENDIF
	840	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	841	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
	842	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
	843
[97]	844	IF ( ocean ) THEN
	845	!
	846	!-- Store initial salinity profile
	847	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
	848	ENDIF
[1]	849
[75]	850	IF ( humidity ) THEN
[1]	851	!
	852	!-- Store initial profile of total water content, virtual potential
	853	!-- temperature
	854	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	855	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
	856	IF ( cloud_physics .OR. cloud_droplets ) THEN
	857	!
	858	!-- Store initial profile of specific humidity and potential
	859	!-- temperature
	860	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	861	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	862	ENDIF
	863	ENDIF
	864
	865	IF ( passive_scalar ) THEN
	866	!
	867	!-- Store initial scalar profile
	868	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	869	ENDIF
	870
	871	!
[19]	872	!-- Initialize fluxes at bottom surface
[1]	873	IF ( use_surface_fluxes ) THEN
	874
	875	IF ( constant_heatflux ) THEN
	876	!
	877	!-- Heat flux is prescribed
	878	IF ( random_heatflux ) THEN
	879	CALL disturb_heatflux
	880	ELSE
	881	shf = surface_heatflux
	882	!
	883	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
	884	IF ( TRIM( topography ) /= 'flat' ) THEN
[667]	885	DO i = nxlg, nxrg
	886	DO j = nysg, nyng
[1]	887	IF ( nzb_s_inner(j,i) /= 0 ) THEN
	888	shf(j,i) = wall_heatflux(0)
	889	ENDIF
	890	ENDDO
	891	ENDDO
	892	ENDIF
	893	ENDIF
	894	ENDIF
	895
	896	!
	897	!-- Determine the near-surface water flux
[75]	898	IF ( humidity .OR. passive_scalar ) THEN
[1073]	899	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
[1053]	900	IF ( constant_waterflux_qr ) THEN
	901	qrsws = surface_waterflux_qr
	902	ENDIF
	903	IF (constant_waterflux_nr ) THEN
	904	nrsws = surface_waterflux_nr
	905	ENDIF
	906	ENDIF
[1]	907	IF ( constant_waterflux ) THEN
	908	qsws = surface_waterflux
[407]	909	!
	910	!-- Over topography surface_waterflux is replaced by
	911	!-- wall_humidityflux(0)
	912	IF ( TRIM( topography ) /= 'flat' ) THEN
	913	wall_qflux = wall_humidityflux
[667]	914	DO i = nxlg, nxrg
	915	DO j = nysg, nyng
[407]	916	IF ( nzb_s_inner(j,i) /= 0 ) THEN
	917	qsws(j,i) = wall_qflux(0)
	918	ENDIF
	919	ENDDO
	920	ENDDO
	921	ENDIF
[1]	922	ENDIF
	923	ENDIF
	924
	925	ENDIF
	926
	927	!
[19]	928	!-- Initialize fluxes at top surface
[94]	929	!-- Currently, only the heatflux and salinity flux can be prescribed.
	930	!-- The latent flux is zero in this case!
[19]	931	IF ( use_top_fluxes ) THEN
	932
	933	IF ( constant_top_heatflux ) THEN
	934	!
	935	!-- Heat flux is prescribed
	936	tswst = top_heatflux
	937
[1053]	938	IF ( humidity .OR. passive_scalar ) THEN
	939	qswst = 0.0
	940	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	941	nrswst = 0.0
	942	qrswst = 0.0
	943	ENDIF
	944	ENDIF
[94]	945
	946	IF ( ocean ) THEN
[95]	947	saswsb = bottom_salinityflux
[94]	948	saswst = top_salinityflux
	949	ENDIF
[102]	950	ENDIF
[19]	951
[102]	952	!
	953	!-- Initialization in case of a coupled model run
	954	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
	955	tswst = 0.0
	956	ENDIF
	957
[19]	958	ENDIF
	959
	960	!
[1]	961	!-- Initialize Prandtl layer quantities
	962	IF ( prandtl_layer ) THEN
	963
	964	z0 = roughness_length
[978]	965	z0h = z0h_factor * z0
[1]	966
	967	IF ( .NOT. constant_heatflux ) THEN
	968	!
	969	!-- Surface temperature is prescribed. Here the heat flux cannot be
	970	!-- simply estimated, because therefore rif, u* and theta* would have
	971	!-- to be computed by iteration. This is why the heat flux is assumed
	972	!-- to be zero before the first time step. It approaches its correct
	973	!-- value in the course of the first few time steps.
	974	shf = 0.0
	975	ENDIF
	976
[75]	977	IF ( humidity .OR. passive_scalar ) THEN
[1001]	978	IF ( .NOT. constant_waterflux ) qsws = 0.0
[1053]	979	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	980	IF ( .NOT. constant_waterflux_qr ) THEN
	981	qrsws = 0.0
	982	ENDIF
	983	IF ( .NOT. constant_waterflux_nr ) THEN
	984	nrsws = 0.0
	985	ENDIF
	986	ENDIF
[1]	987	ENDIF
	988
	989	ENDIF
	990
[152]	991
	992	!
[707]	993	!-- For the moment, vertical velocity is zero
	994	w = 0.0
[1]	995
	996	!
	997	!-- Initialize array sums (must be defined in first call of pres)
	998	sums = 0.0
	999
	1000	!
[707]	1001	!-- In case of iterative solvers, p must get an initial value
	1002	IF ( psolver == 'multigrid' .OR. psolver == 'sor' ) p = 0.0
	1003
	1004	!
[72]	1005	!-- Treating cloud physics, liquid water content and precipitation amount
	1006	!-- are zero at beginning of the simulation
	1007	IF ( cloud_physics ) THEN
	1008	ql = 0.0
	1009	IF ( precipitation ) precipitation_amount = 0.0
	1010	ENDIF
[673]	1011	!
[1]	1012	!-- Impose vortex with vertical axis on the initial velocity profile
	1013	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	1014	CALL init_rankine
	1015	ENDIF
	1016
	1017	!
	1018	!-- Impose temperature anomaly (advection test only)
	1019	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
	1020	CALL init_pt_anomaly
	1021	ENDIF
	1022
	1023	!
	1024	!-- If required, change the surface temperature at the start of the 3D run
	1025	IF ( pt_surface_initial_change /= 0.0 ) THEN
	1026	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	1027	ENDIF
	1028
	1029	!
	1030	!-- If required, change the surface humidity/scalar at the start of the 3D
	1031	!-- run
[75]	1032	IF ( ( humidity .OR. passive_scalar ) .AND. &
[1]	1033	q_surface_initial_change /= 0.0 ) THEN
	1034	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
[1053]	1035	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	1036	IF ( qr_surface_initial_change /= 0.0 ) THEN
	1037	qr(nzb,:,:) = qr(nzb,:,:) + qr_surface_initial_change
	1038	ELSEIF ( nr_surface_initial_change /= 0.0 ) THEN
	1039	nr(nzb,:,:) = nr(nzb,:,:) + nr_surface_initial_change
	1040	ENDIF
	1041	ENDIF
[1]	1042	ENDIF
	1043
	1044	!
	1045	!-- Initialize the random number generator (from numerical recipes)
	1046	CALL random_function_ini
	1047
	1048	!
	1049	!-- Initialize old and new time levels.
[1001]	1050	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
[1]	1051	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
	1052
[75]	1053	IF ( humidity .OR. passive_scalar ) THEN
[1001]	1054	tq_m = 0.0
[1]	1055	q_p = q
[1053]	1056	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	1057	tqr_m = 0.0
	1058	qr_p = qr
	1059	tnr_m = 0.0
	1060	nr_p = nr
	1061	ENDIF
[1]	1062	ENDIF
	1063
[94]	1064	IF ( ocean ) THEN
	1065	tsa_m = 0.0
	1066	sa_p = sa
	1067	ENDIF
[667]	1068
[94]	1069
[147]	1070	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
[667]	1071	TRIM( initializing_actions ) == 'cyclic_fill' ) &
[1]	1072	THEN
	1073	!
[767]	1074	!-- When reading data for cyclic fill of 3D prerun data files, read
	1075	!-- some of the global variables from the restart file which are required
	1076	!-- for initializing the inflow
[328]	1077	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[559]	1078
[759]	1079	DO i = 0, io_blocks-1
	1080	IF ( i == io_group ) THEN
	1081	CALL read_parts_of_var_list
	1082	CALL close_file( 13 )
	1083	ENDIF
	1084	#if defined( __parallel )
	1085	CALL MPI_BARRIER( comm2d, ierr )
	1086	#endif
	1087	ENDDO
[328]	1088
[767]	1089	ENDIF
	1090
[151]	1091	!
[767]	1092	!-- Read binary data from restart file
	1093	DO i = 0, io_blocks-1
	1094	IF ( i == io_group ) THEN
	1095	CALL read_3d_binary
	1096	ENDIF
	1097	#if defined( __parallel )
	1098	CALL MPI_BARRIER( comm2d, ierr )
	1099	#endif
	1100	ENDDO
	1101
[328]	1102	!
[767]	1103	!-- Initialization of the turbulence recycling method
	1104	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
	1105	turbulent_inflow ) THEN
	1106	!
	1107	!-- First store the profiles to be used at the inflow.
	1108	!-- These profiles are the (temporally) and horizontally averaged vertical
	1109	!-- profiles from the prerun. Alternatively, prescribed profiles
	1110	!-- for u,v-components can be used.
	1111	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,5) )
[151]	1112
[767]	1113	IF ( use_prescribed_profile_data ) THEN
	1114	mean_inflow_profiles(:,1) = u_init ! u
	1115	mean_inflow_profiles(:,2) = v_init ! v
	1116	ELSE
[328]	1117	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
	1118	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
[767]	1119	ENDIF
	1120	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
	1121	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
[151]	1122
	1123	!
[767]	1124	!-- If necessary, adjust the horizontal flow field to the prescribed
	1125	!-- profiles
	1126	IF ( use_prescribed_profile_data ) THEN
	1127	DO i = nxlg, nxrg
[667]	1128	DO j = nysg, nyng
[328]	1129	DO k = nzb, nzt+1
[767]	1130	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
	1131	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
[328]	1132	ENDDO
[151]	1133	ENDDO
[767]	1134	ENDDO
	1135	ENDIF
[151]	1136
	1137	!
[767]	1138	!-- Use these mean profiles at the inflow (provided that Dirichlet
	1139	!-- conditions are used)
	1140	IF ( inflow_l ) THEN
	1141	DO j = nysg, nyng
	1142	DO k = nzb, nzt+1
	1143	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
	1144	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
	1145	w(k,j,nxlg:-1) = 0.0
	1146	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
	1147	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
	1148	ENDDO
	1149	ENDDO
	1150	ENDIF
	1151
[151]	1152	!
[767]	1153	!-- Calculate the damping factors to be used at the inflow. For a
	1154	!-- turbulent inflow the turbulent fluctuations have to be limited
	1155	!-- vertically because otherwise the turbulent inflow layer will grow
	1156	!-- in time.
	1157	IF ( inflow_damping_height == 9999999.9 ) THEN
	1158	!
	1159	!-- Default: use the inversion height calculated by the prerun; if
	1160	!-- this is zero, inflow_damping_height must be explicitly
	1161	!-- specified.
	1162	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0 ) THEN
	1163	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
	1164	ELSE
	1165	WRITE( message_string, * ) 'inflow_damping_height must be ',&
	1166	'explicitly specified because&the inversion height ', &
	1167	'calculated by the prerun is zero.'
	1168	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
[292]	1169	ENDIF
[151]	1170
[767]	1171	ENDIF
	1172
	1173	IF ( inflow_damping_width == 9999999.9 ) THEN
[151]	1174	!
[767]	1175	!-- Default for the transition range: one tenth of the undamped
	1176	!-- layer
	1177	inflow_damping_width = 0.1 * inflow_damping_height
[151]	1178
[767]	1179	ENDIF
[151]	1180
[767]	1181	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
[151]	1182
[767]	1183	DO k = nzb, nzt+1
[151]	1184
[767]	1185	IF ( zu(k) <= inflow_damping_height ) THEN
	1186	inflow_damping_factor(k) = 1.0
[996]	1187	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
	1188	inflow_damping_factor(k) = 1.0 - &
	1189	( zu(k) - inflow_damping_height ) / &
	1190	inflow_damping_width
[767]	1191	ELSE
	1192	inflow_damping_factor(k) = 0.0
	1193	ENDIF
[151]	1194
[767]	1195	ENDDO
[151]	1196
[147]	1197	ENDIF
	1198
[152]	1199	!
[359]	1200	!-- Inside buildings set velocities and TKE back to zero
	1201	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
	1202	topography /= 'flat' ) THEN
	1203	!
	1204	!-- Inside buildings set velocities and TKE back to zero.
	1205	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
	1206	!-- maybe revise later.
[1001]	1207	DO i = nxlg, nxrg
	1208	DO j = nysg, nyng
	1209	u (nzb:nzb_u_inner(j,i),j,i) = 0.0
	1210	v (nzb:nzb_v_inner(j,i),j,i) = 0.0
	1211	w (nzb:nzb_w_inner(j,i),j,i) = 0.0
	1212	e (nzb:nzb_w_inner(j,i),j,i) = 0.0
	1213	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0
	1214	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0
	1215	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
	1216	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
	1217	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
[359]	1218	ENDDO
[1001]	1219	ENDDO
[359]	1220
	1221	ENDIF
	1222
	1223	!
[1]	1224	!-- Calculate initial temperature field and other constants used in case
	1225	!-- of a sloping surface
	1226	IF ( sloping_surface ) CALL init_slope
	1227
	1228	!
	1229	!-- Initialize new time levels (only done in order to set boundary values
	1230	!-- including ghost points)
	1231	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
[1053]	1232	IF ( humidity .OR. passive_scalar ) THEN
	1233	q_p = q
	1234	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	1235	qr_p = qr
	1236	nr_p = nr
	1237	ENDIF
	1238	ENDIF
[94]	1239	IF ( ocean ) sa_p = sa
[1]	1240
[181]	1241	!
	1242	!-- Allthough tendency arrays are set in prognostic_equations, they have
	1243	!-- have to be predefined here because they are used (but multiplied with 0)
	1244	!-- there before they are set.
[1001]	1245	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
[1053]	1246	IF ( humidity .OR. passive_scalar ) THEN
	1247	tq_m = 0.0
	1248	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	1249	tqr_m = 0.0
	1250	tnr_m = 0.0
	1251	ENDIF
	1252	ENDIF
[1001]	1253	IF ( ocean ) tsa_m = 0.0
[181]	1254
[1]	1255	ELSE
	1256	!
	1257	!-- Actually this part of the programm should not be reached
[254]	1258	message_string = 'unknown initializing problem'
	1259	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
[1]	1260	ENDIF
	1261
[151]	1262
	1263	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
[1]	1264	!
[151]	1265	!-- Initialize old timelevels needed for radiation boundary conditions
	1266	IF ( outflow_l ) THEN
	1267	u_m_l(:,:,:) = u(:,:,1:2)
	1268	v_m_l(:,:,:) = v(:,:,0:1)
	1269	w_m_l(:,:,:) = w(:,:,0:1)
	1270	ENDIF
	1271	IF ( outflow_r ) THEN
	1272	u_m_r(:,:,:) = u(:,:,nx-1:nx)
	1273	v_m_r(:,:,:) = v(:,:,nx-1:nx)
	1274	w_m_r(:,:,:) = w(:,:,nx-1:nx)
	1275	ENDIF
	1276	IF ( outflow_s ) THEN
	1277	u_m_s(:,:,:) = u(:,0:1,:)
	1278	v_m_s(:,:,:) = v(:,1:2,:)
	1279	w_m_s(:,:,:) = w(:,0:1,:)
	1280	ENDIF
	1281	IF ( outflow_n ) THEN
	1282	u_m_n(:,:,:) = u(:,ny-1:ny,:)
	1283	v_m_n(:,:,:) = v(:,ny-1:ny,:)
	1284	w_m_n(:,:,:) = w(:,ny-1:ny,:)
	1285	ENDIF
[667]	1286
[151]	1287	ENDIF
[680]	1288
[667]	1289	!
	1290	!-- Calculate the initial volume flow at the right and north boundary
[709]	1291	IF ( conserve_volume_flow ) THEN
[151]	1292
[767]	1293	IF ( use_prescribed_profile_data ) THEN
[667]	1294
[732]	1295	volume_flow_initial_l = 0.0
	1296	volume_flow_area_l = 0.0
	1297
[667]	1298	IF ( nxr == nx ) THEN
	1299	DO j = nys, nyn
[709]	1300	DO k = nzb_2d(j,nx)+1, nzt
[667]	1301	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[767]	1302	u_init(k) * dzw(k)
	1303	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1304	ENDDO
	1305	ENDDO
	1306	ENDIF
	1307
	1308	IF ( nyn == ny ) THEN
	1309	DO i = nxl, nxr
	1310	DO k = nzb_2d(ny,i)+1, nzt
	1311	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1312	v_init(k) * dzw(k)
	1313	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1314	ENDDO
	1315	ENDDO
	1316	ENDIF
	1317
	1318	#if defined( __parallel )
	1319	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1320	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1321	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1322	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1323
	1324	#else
	1325	volume_flow_initial = volume_flow_initial_l
	1326	volume_flow_area = volume_flow_area_l
	1327	#endif
	1328
	1329	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1330
	1331	volume_flow_initial_l = 0.0
	1332	volume_flow_area_l = 0.0
	1333
	1334	IF ( nxr == nx ) THEN
	1335	DO j = nys, nyn
	1336	DO k = nzb_2d(j,nx)+1, nzt
	1337	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[667]	1338	hom_sum(k,1,0) * dzw(k)
	1339	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1340	ENDDO
	1341	ENDDO
	1342	ENDIF
	1343
	1344	IF ( nyn == ny ) THEN
	1345	DO i = nxl, nxr
[709]	1346	DO k = nzb_2d(ny,i)+1, nzt
[667]	1347	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
[709]	1348	hom_sum(k,2,0) * dzw(k)
[667]	1349	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1350	ENDDO
	1351	ENDDO
	1352	ENDIF
	1353
[732]	1354	#if defined( __parallel )
	1355	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1356	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1357	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1358	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1359
	1360	#else
	1361	volume_flow_initial = volume_flow_initial_l
	1362	volume_flow_area = volume_flow_area_l
	1363	#endif
	1364
[667]	1365	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	1366
[732]	1367	volume_flow_initial_l = 0.0
	1368	volume_flow_area_l = 0.0
	1369
[667]	1370	IF ( nxr == nx ) THEN
	1371	DO j = nys, nyn
[709]	1372	DO k = nzb_2d(j,nx)+1, nzt
[667]	1373	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[709]	1374	u(k,j,nx) * dzw(k)
[667]	1375	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1376	ENDDO
	1377	ENDDO
	1378	ENDIF
	1379
	1380	IF ( nyn == ny ) THEN
	1381	DO i = nxl, nxr
[709]	1382	DO k = nzb_2d(ny,i)+1, nzt
[667]	1383	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1384	v(k,ny,i) * dzw(k)
	1385	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1386	ENDDO
	1387	ENDDO
	1388	ENDIF
	1389
	1390	#if defined( __parallel )
[732]	1391	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1392	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1393	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1394	2, MPI_REAL, MPI_SUM, comm2d, ierr )
[667]	1395
	1396	#else
[732]	1397	volume_flow_initial = volume_flow_initial_l
	1398	volume_flow_area = volume_flow_area_l
[667]	1399	#endif
	1400
[732]	1401	ENDIF
	1402
[151]	1403	!
[709]	1404	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
	1405	!-- from u\|v_bulk instead
[680]	1406	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
	1407	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
	1408	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
	1409	ENDIF
[667]	1410
[680]	1411	ENDIF
	1412
[787]	1413	!
	1414	!-- Initialize quantities for special advections schemes
	1415	CALL init_advec
[680]	1416
[667]	1417	!
[680]	1418	!-- Impose random perturbation on the horizontal velocity field and then
	1419	!-- remove the divergences from the velocity field at the initial stage
	1420	IF ( create_disturbances .AND. &
	1421	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
	1422	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
	1423
	1424	CALL disturb_field( nzb_u_inner, tend, u )
	1425	CALL disturb_field( nzb_v_inner, tend, v )
	1426	n_sor = nsor_ini
	1427	CALL pres
	1428	n_sor = nsor
	1429	ENDIF
	1430
	1431	!
[138]	1432	!-- Initialization of the leaf area density
[709]	1433	IF ( plant_canopy ) THEN
[138]	1434
	1435	SELECT CASE ( TRIM( canopy_mode ) )
	1436
	1437	CASE( 'block' )
	1438
[667]	1439	DO i = nxlg, nxrg
	1440	DO j = nysg, nyng
[138]	1441	lad_s(:,j,i) = lad(:)
	1442	cdc(:,j,i) = drag_coefficient
[709]	1443	IF ( passive_scalar ) THEN
[153]	1444	sls(:,j,i) = leaf_surface_concentration
	1445	sec(:,j,i) = scalar_exchange_coefficient
	1446	ENDIF
[138]	1447	ENDDO
	1448	ENDDO
	1449
	1450	CASE DEFAULT
	1451
	1452	!
	1453	!-- The DEFAULT case is reached either if the parameter
	1454	!-- canopy mode contains a wrong character string or if the
	1455	!-- user has coded a special case in the user interface.
	1456	!-- There, the subroutine user_init_plant_canopy checks
	1457	!-- which of these two conditions applies.
	1458	CALL user_init_plant_canopy
	1459
	1460	END SELECT
	1461
[667]	1462	CALL exchange_horiz( lad_s, nbgp )
	1463	CALL exchange_horiz( cdc, nbgp )
[138]	1464
[709]	1465	IF ( passive_scalar ) THEN
[667]	1466	CALL exchange_horiz( sls, nbgp )
	1467	CALL exchange_horiz( sec, nbgp )
[153]	1468	ENDIF
	1469
	1470	!
	1471	!-- Sharp boundaries of the plant canopy in horizontal directions
	1472	!-- In vertical direction the interpolation is retained, as the leaf
	1473	!-- area density is initialised by prescribing a vertical profile
	1474	!-- consisting of piecewise linear segments. The upper boundary
	1475	!-- of the plant canopy is now defined by lad_w(pch_index,:,:) = 0.0.
	1476
[138]	1477	DO i = nxl, nxr
	1478	DO j = nys, nyn
	1479	DO k = nzb, nzt+1
[709]	1480	IF ( lad_s(k,j,i) > 0.0 ) THEN
[153]	1481	lad_u(k,j,i) = lad_s(k,j,i)
	1482	lad_u(k,j,i+1) = lad_s(k,j,i)
	1483	lad_v(k,j,i) = lad_s(k,j,i)
	1484	lad_v(k,j+1,i) = lad_s(k,j,i)
	1485	ENDIF
[138]	1486	ENDDO
	1487	DO k = nzb, nzt
	1488	lad_w(k,j,i) = 0.5 * ( lad_s(k+1,j,i) + lad_s(k,j,i) )
	1489	ENDDO
	1490	ENDDO
	1491	ENDDO
	1492
[153]	1493	lad_w(pch_index,:,:) = 0.0
	1494	lad_w(nzt+1,:,:) = lad_w(nzt,:,:)
[138]	1495
[667]	1496	CALL exchange_horiz( lad_u, nbgp )
	1497	CALL exchange_horiz( lad_v, nbgp )
	1498	CALL exchange_horiz( lad_w, nbgp )
[153]	1499
	1500	!
	1501	!-- Initialisation of the canopy heat source distribution
[709]	1502	IF ( cthf /= 0.0 ) THEN
[153]	1503	!
	1504	!-- Piecewise evaluation of the leaf area index by
	1505	!-- integration of the leaf area density
	1506	lai(:,:,:) = 0.0
[667]	1507	DO i = nxlg, nxrg
	1508	DO j = nysg, nyng
[153]	1509	DO k = pch_index-1, 0, -1
	1510	lai(k,j,i) = lai(k+1,j,i) + &
	1511	( 0.5 * ( lad_w(k+1,j,i) + &
	1512	lad_s(k+1,j,i) ) * &
	1513	( zw(k+1) - zu(k+1) ) ) + &
	1514	( 0.5 * ( lad_w(k,j,i) + &
	1515	lad_s(k+1,j,i) ) * &
	1516	( zu(k+1) - zw(k) ) )
	1517	ENDDO
	1518	ENDDO
	1519	ENDDO
	1520
	1521	!
	1522	!-- Evaluation of the upward kinematic vertical heat flux within the
	1523	!-- canopy
[667]	1524	DO i = nxlg, nxrg
	1525	DO j = nysg, nyng
[153]	1526	DO k = 0, pch_index
	1527	canopy_heat_flux(k,j,i) = cthf * &
	1528	exp( -0.6 * lai(k,j,i) )
	1529	ENDDO
	1530	ENDDO
	1531	ENDDO
	1532
	1533	!
	1534	!-- The near surface heat flux is derived from the heat flux
	1535	!-- distribution within the canopy
	1536	shf(:,:) = canopy_heat_flux(0,:,:)
	1537
	1538	ENDIF
	1539
[138]	1540	ENDIF
	1541
	1542	!
[1]	1543	!-- If required, initialize dvrp-software
	1544	IF ( dt_dvrp /= 9999999.9 ) CALL init_dvrp
	1545
[96]	1546	IF ( ocean ) THEN
[1]	1547	!
[96]	1548	!-- Initialize quantities needed for the ocean model
	1549	CALL init_ocean
[388]	1550
[96]	1551	ELSE
	1552	!
	1553	!-- Initialize quantities for handling cloud physics
[849]	1554	!-- This routine must be called before lpm_init, because
[96]	1555	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
[849]	1556	!-- lpm_init) is not defined.
[96]	1557	CALL init_cloud_physics
	1558	ENDIF
[1]	1559
	1560	!
	1561	!-- If required, initialize particles
[849]	1562	IF ( particle_advection ) CALL lpm_init
[1]	1563
	1564	!
[673]	1565	!-- Initialize the ws-scheme.
	1566	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
[1]	1567
	1568	!
[709]	1569	!-- Setting weighting factors for calculation of perturbation pressure
	1570	!-- and turbulent quantities from the RK substeps
	1571	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
	1572
[713]	1573	weight_substep(1) = 1./6.
	1574	weight_substep(2) = 3./10.
	1575	weight_substep(3) = 8./15.
[709]	1576
[713]	1577	weight_pres(1) = 1./3.
	1578	weight_pres(2) = 5./12.
	1579	weight_pres(3) = 1./4.
[709]	1580
	1581	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
	1582
[713]	1583	weight_substep(1) = 1./2.
	1584	weight_substep(2) = 1./2.
[673]	1585
[713]	1586	weight_pres(1) = 1./2.
	1587	weight_pres(2) = 1./2.
[709]	1588
[1001]	1589	ELSE ! for Euler-method
[709]	1590
[673]	1591	weight_substep(1) = 1.0
[709]	1592	weight_pres(1) = 1.0
	1593
[673]	1594	ENDIF
	1595
	1596	!
[1]	1597	!-- Initialize Rayleigh damping factors
[785]	1598	rdf = 0.0
	1599	rdf_sc = 0.0
[1]	1600	IF ( rayleigh_damping_factor /= 0.0 ) THEN
[108]	1601	IF ( .NOT. ocean ) THEN
	1602	DO k = nzb+1, nzt
	1603	IF ( zu(k) >= rayleigh_damping_height ) THEN
	1604	rdf(k) = rayleigh_damping_factor * &
[1]	1605	( SIN( pi * 0.5 * ( zu(k) - rayleigh_damping_height ) &
	1606	/ ( zu(nzt) - rayleigh_damping_height ) )&
	1607	)**2
[108]	1608	ENDIF
	1609	ENDDO
	1610	ELSE
	1611	DO k = nzt, nzb+1, -1
	1612	IF ( zu(k) <= rayleigh_damping_height ) THEN
	1613	rdf(k) = rayleigh_damping_factor * &
	1614	( SIN( pi * 0.5 * ( rayleigh_damping_height - zu(k) ) &
	1615	/ ( rayleigh_damping_height - zu(nzb+1)))&
	1616	)**2
	1617	ENDIF
	1618	ENDDO
	1619	ENDIF
[1]	1620	ENDIF
[785]	1621	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
[1]	1622
	1623	!
[240]	1624	!-- Initialize the starting level and the vertical smoothing factor used for
	1625	!-- the external pressure gradient
	1626	dp_smooth_factor = 1.0
	1627	IF ( dp_external ) THEN
	1628	!
	1629	!-- Set the starting level dp_level_ind_b only if it has not been set before
	1630	!-- (e.g. in init_grid).
	1631	IF ( dp_level_ind_b == 0 ) THEN
	1632	ind_array = MINLOC( ABS( dp_level_b - zu ) )
	1633	dp_level_ind_b = ind_array(1) - 1 + nzb
	1634	! MINLOC uses lower array bound 1
	1635	ENDIF
	1636	IF ( dp_smooth ) THEN
	1637	dp_smooth_factor(:dp_level_ind_b) = 0.0
	1638	DO k = dp_level_ind_b+1, nzt
	1639	dp_smooth_factor(k) = 0.5 * ( 1.0 + SIN( pi * &
	1640	( REAL( k - dp_level_ind_b ) / &
	1641	REAL( nzt - dp_level_ind_b ) - 0.5 ) ) )
	1642	ENDDO
	1643	ENDIF
	1644	ENDIF
	1645
	1646	!
[978]	1647	!-- Initialize damping zone for the potential temperature in case of
	1648	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
	1649	!-- at the inflow boundary and decreases to zero at pt_damping_width.
	1650	ptdf_x = 0.0
	1651	ptdf_y = 0.0
[996]	1652	IF ( bc_lr_dirrad .OR. bc_lr_dirneu ) THEN
	1653	DO i = nxl, nxr
[978]	1654	IF ( ( i * dx ) < pt_damping_width ) THEN
	1655	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5 * &
	1656	REAL( pt_damping_width - i * dx ) / ( &
	1657	REAL( pt_damping_width ) ) ) )**2
[73]	1658	ENDIF
	1659	ENDDO
[996]	1660	ELSEIF ( bc_lr_raddir .OR. bc_lr_neudir ) THEN
	1661	DO i = nxl, nxr
[978]	1662	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
[996]	1663	ptdf_x(i) = pt_damping_factor * &
	1664	SIN( pi * 0.5 * ( ( i - nx ) * dx + pt_damping_width ) / &
	1665	REAL( pt_damping_width ) )**2
[73]	1666	ENDIF
[978]	1667	ENDDO
[996]	1668	ELSEIF ( bc_ns_dirrad .OR. bc_ns_dirneu ) THEN
	1669	DO j = nys, nyn
[978]	1670	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
[996]	1671	ptdf_y(j) = pt_damping_factor * &
	1672	SIN( pi * 0.5 * ( ( j - ny ) * dy + pt_damping_width ) / &
	1673	REAL( pt_damping_width ) )**2
[1]	1674	ENDIF
[978]	1675	ENDDO
[996]	1676	ELSEIF ( bc_ns_raddir .OR. bc_ns_neudir ) THEN
	1677	DO j = nys, nyn
[978]	1678	IF ( ( j * dy ) < pt_damping_width ) THEN
[996]	1679	ptdf_y(j) = pt_damping_factor * &
	1680	SIN( pi * 0.5 * ( pt_damping_width - j * dy ) / &
	1681	REAL( pt_damping_width ) )**2
[1]	1682	ENDIF
[73]	1683	ENDDO
[1]	1684	ENDIF
	1685
	1686	!
[709]	1687	!-- Initialize local summation arrays for routine flow_statistics.
	1688	!-- This is necessary because they may not yet have been initialized when they
	1689	!-- are called from flow_statistics (or - depending on the chosen model run -
	1690	!-- are never initialized)
[1]	1691	sums_divnew_l = 0.0
	1692	sums_divold_l = 0.0
	1693	sums_l_l = 0.0
	1694	sums_up_fraction_l = 0.0
	1695	sums_wsts_bc_l = 0.0
	1696
	1697	!
	1698	!-- Pre-set masks for regional statistics. Default is the total model domain.
[1015]	1699	!-- Ghost points are excluded because counting values at the ghost boundaries
	1700	!-- would bias the statistics
[1]	1701	rmask = 1.0
[1025]	1702	rmask(:,nxlg:nxl-1,:) = 0.0; rmask(:,nxr+1:nxrg,:) = 0.0
	1703	rmask(nysg:nys-1,:,:) = 0.0; rmask(nyn+1:nyng,:,:) = 0.0
[1]	1704
	1705	!
[51]	1706	!-- User-defined initializing actions. Check afterwards, if maximum number
[709]	1707	!-- of allowed timeseries is exceeded
[1]	1708	CALL user_init
	1709
[51]	1710	IF ( dots_num > dots_max ) THEN
[254]	1711	WRITE( message_string, * ) 'number of time series quantities exceeds', &
[274]	1712	' its maximum of dots_max = ', dots_max, &
[254]	1713	' &Please increase dots_max in modules.f90.'
	1714	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
[51]	1715	ENDIF
	1716
[1]	1717	!
	1718	!-- Input binary data file is not needed anymore. This line must be placed
	1719	!-- after call of user_init!
	1720	CALL close_file( 13 )
	1721
	1722	!
	1723	!-- Compute total sum of active mask grid points
	1724	!-- ngp_2dh: number of grid points of a horizontal cross section through the
	1725	!-- total domain
	1726	!-- ngp_3d: number of grid points of the total domain
[132]	1727	ngp_2dh_outer_l = 0
	1728	ngp_2dh_outer = 0
	1729	ngp_2dh_s_inner_l = 0
	1730	ngp_2dh_s_inner = 0
	1731	ngp_2dh_l = 0
	1732	ngp_2dh = 0
[485]	1733	ngp_3d_inner_l = 0.0
[132]	1734	ngp_3d_inner = 0
	1735	ngp_3d = 0
	1736	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
[1]	1737
	1738	DO sr = 0, statistic_regions
	1739	DO i = nxl, nxr
	1740	DO j = nys, nyn
	1741	IF ( rmask(j,i,sr) == 1.0 ) THEN
	1742	!
	1743	!-- All xy-grid points
	1744	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1745	!
	1746	!-- xy-grid points above topography
	1747	DO k = nzb_s_outer(j,i), nz + 1
	1748	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
	1749	ENDDO
[132]	1750	DO k = nzb_s_inner(j,i), nz + 1
	1751	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
	1752	ENDDO
[1]	1753	!
	1754	!-- All grid points of the total domain above topography
	1755	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
	1756	( nz - nzb_s_inner(j,i) + 2 )
	1757	ENDIF
	1758	ENDDO
	1759	ENDDO
	1760	ENDDO
	1761
	1762	sr = statistic_regions + 1
	1763	#if defined( __parallel )
[622]	1764	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1765	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
[1]	1766	comm2d, ierr )
[622]	1767	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1768	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
[1]	1769	MPI_INTEGER, MPI_SUM, comm2d, ierr )
[622]	1770	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1771	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
[132]	1772	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
[622]	1773	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1774	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
[1]	1775	MPI_SUM, comm2d, ierr )
[485]	1776	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
[1]	1777	#else
[132]	1778	ngp_2dh = ngp_2dh_l
	1779	ngp_2dh_outer = ngp_2dh_outer_l
	1780	ngp_2dh_s_inner = ngp_2dh_s_inner_l
[485]	1781	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
[1]	1782	#endif
	1783
[560]	1784	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
	1785	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
[1]	1786
	1787	!
	1788	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
	1789	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
	1790	!-- the respective subdomain lie below the surface topography
[667]	1791	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
[631]	1792	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
	1793	ngp_3d_inner(:) )
[667]	1794	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
[1]	1795
[485]	1796	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, ngp_3d_inner_tmp )
[1]	1797
	1798
	1799	END SUBROUTINE init_3d_model

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