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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1108

Last change on this file since 1108 was 1093, checked in by raasch, 12 years ago
last commit documented
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[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	! ------------------
[1093]	25	!
[1054]	26	!
	27	! Former revisions:
	28	! -----------------
	29	! $Id: init_3d_model.f90 1093 2013-02-02 12:58:49Z raasch $
	30	!
[1093]	31	! 1092 2013-02-02 11:24:22Z raasch
	32	! unused variables removed
	33	!
[1066]	34	! 1065 2012-11-22 17:42:36Z hoffmann
	35	! allocation of diss (dissipation rate) in case of turbulence = .TRUE. added
	36	!
[1054]	37	! 1053 2012-11-13 17:11:03Z hoffmann
[1053]	38	! allocation and initialisation of necessary data arrays for the two-moment
	39	! cloud physics scheme the two new prognostic equations (nr, qr):
	40	! +dr, lambda_r, mu_r, sed_, xr, s, sws, swst, , _p, t_m, _1, _2, _3,
	41	! +tend_*, prr
[979]	42	!
[1037]	43	! 1036 2012-10-22 13:43:42Z raasch
	44	! code put under GPL (PALM 3.9)
	45	!
[1033]	46	! 1032 2012-10-21 13:03:21Z letzel
	47	! save memory by not allocating pt_2 in case of neutral = .T.
	48	!
[1026]	49	! 1025 2012-10-07 16:04:41Z letzel
	50	! bugfix: swap indices of mask for ghost boundaries
	51	!
[1017]	52	! 1015 2012-09-27 09:23:24Z raasch
	53	! mask is set to zero for ghost boundaries
	54	!
[1011]	55	! 1010 2012-09-20 07:59:54Z raasch
	56	! cpp switch __nopointer added for pointer free version
	57	!
[1004]	58	! 1003 2012-09-14 14:35:53Z raasch
	59	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
	60	!
[1002]	61	! 1001 2012-09-13 14:08:46Z raasch
	62	! all actions concerning leapfrog scheme removed
	63	!
[997]	64	! 996 2012-09-07 10:41:47Z raasch
	65	! little reformatting
	66	!
[979]	67	! 978 2012-08-09 08:28:32Z fricke
[978]	68	! outflow damping layer removed
	69	! roughness length for scalar quantites z0h added
	70	! damping zone for the potential temperatur in case of non-cyclic lateral
	71	! boundaries added
	72	! initialization of ptdf_x, ptdf_y
	73	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
[708]	74	!
[850]	75	! 849 2012-03-15 10:35:09Z raasch
	76	! init_particles renamed lpm_init
	77	!
[826]	78	! 825 2012-02-19 03:03:44Z raasch
	79	! wang_collision_kernel renamed wang_kernel
	80	!
[791]	81	! 790 2011-11-29 03:11:20Z raasch
	82	! diss is also allocated in case that the Wang kernel is used
	83	!
[788]	84	! 787 2011-11-28 12:49:05Z heinze $
	85	! bugfix: call init_advec in every case - not only for inital runs
	86	!
[786]	87	! 785 2011-11-28 09:47:19Z raasch
	88	! initialization of rdf_sc
	89	!
[768]	90	! 767 2011-10-14 06:39:12Z raasch
	91	! adjustments concerning implementation of prescribed u,v-profiles
	92	! bugfix: dirichlet_0 conditions for ug/vg moved to check_parameters
	93	!
[760]	94	! 759 2011-09-15 13:58:31Z raasch
	95	! Splitting of parallel I/O in blocks of PEs
	96	! Bugfix: No zero assignments to volume_flow_initial and volume_flow_area in
	97	! case of normal restart runs.
	98	!
[714]	99	! 713 2011-03-30 14:21:21Z suehring
[732]	100	! weight_substep and weight_pres are given as fractions.
[714]	101	!
[710]	102	! 709 2011-03-30 09:31:40Z raasch
	103	! formatting adjustments
	104	!
[708]	105	! 707 2011-03-29 11:39:40Z raasch
[707]	106	! p_sub renamed p_loc and allocated depending on the chosen pressure solver,
	107	! initial assignments of zero to array p for iterative solvers only,
	108	! bc_lr/ns replaced by bc_lr/ns_dirrad/raddir
[674]	109	!
[708]	110	! 680 2011-02-04 23:16:06Z gryschka
[681]	111	! bugfix: volume_flow_control
[668]	112	!
[674]	113	! 673 2011-01-18 16:19:48Z suehring
	114	! weight_substep (moved from advec_ws) and weight_pres added.
	115	! Allocate p_sub when using Multigrid or SOR solver.
	116	! Call of ws_init moved behind the if requests.
	117	!
[668]	118	! 667 2010-12-23 12:06:00Z suehring/gryschka
[667]	119	! nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng in loops and
	120	! allocation of arrays. Calls of exchange_horiz are modified.
[709]	121	! Call ws_init to initialize arrays needed for calculating statisticas and for
[667]	122	! optimization when ws-scheme is used.
	123	! Initial volume flow is now calculated by using the variable hom_sum.
	124	! Therefore the correction of initial volume flow for non-flat topography
	125	! removed (removed u_nzb_p1_for_vfc and v_nzb_p1_for_vfc)
	126	! Changed surface boundary conditions for u and v in case of ibc_uv_b == 0 from
[709]	127	! mirror to Dirichlet boundary conditions (u=v=0), so that k=nzb is
	128	! representative for the height z0.
[667]	129	! Bugfix: type conversion of '1' to 64bit for the MAX function (ngp_3d_inner)
	130	!
[623]	131	! 622 2010-12-10 08:08:13Z raasch
	132	! optional barriers included in order to speed up collective operations
	133	!
[561]	134	! 560 2010-09-09 10:06:09Z weinreis
	135	! bugfix: correction of calculating ngp_3d for 64 bit
	136	!
[486]	137	! 485 2010-02-05 10:57:51Z raasch
	138	! calculation of ngp_3d + ngp_3d_inner changed because they have now 64 bit
	139	!
[482]	140	! 407 2009-12-01 15:01:15Z maronga
	141	! var_ts is replaced by dots_max
	142	! Enabled passive scalar/humidity wall fluxes for non-flat topography
	143	!
[392]	144	! 388 2009-09-23 09:40:33Z raasch
[388]	145	! Initialization of prho added.
[359]	146	! bugfix: correction of initial volume flow for non-flat topography
	147	! bugfix: zero initialization of arrays within buildings for 'cyclic_fill'
[333]	148	! bugfix: avoid that ngp_2dh_s_inner becomes zero
[328]	149	! initializing_actions='read_data_for_recycling' renamed to 'cyclic_fill', now
	150	! independent of turbulent_inflow
[254]	151	! Output of messages replaced by message handling routine.
[240]	152	! Set the starting level and the vertical smoothing factor used for
	153	! the external pressure gradient
[254]	154	! +conserve_volume_flow_mode: 'default', 'initial_profiles', 'inflow_profile'
[241]	155	! and 'bulk_velocity'
[292]	156	! If the inversion height calculated by the prerun is zero,
	157	! inflow_damping_height must be explicitly specified.
[139]	158	!
[198]	159	! 181 2008-07-30 07:07:47Z raasch
	160	! bugfix: zero assignments to tendency arrays in case of restarts,
	161	! further extensions and modifications in the initialisation of the plant
	162	! canopy model,
	163	! allocation of hom_sum moved to parin, initialization of spectrum_x\|y directly
	164	! after allocating theses arrays,
	165	! read data for recycling added as new initialization option,
	166	! dummy allocation for diss
	167	!
[139]	168	! 138 2007-11-28 10:03:58Z letzel
[132]	169	! New counter ngp_2dh_s_inner.
	170	! Allow new case bc_uv_t = 'dirichlet_0' for channel flow.
	171	! Corrected calculation of initial volume flow for 'set_1d-model_profiles' and
	172	! 'set_constant_profiles' in case of buildings in the reference cross-sections.
[77]	173	!
[110]	174	! 108 2007-08-24 15:10:38Z letzel
	175	! Flux initialization in case of coupled runs, +momentum fluxes at top boundary,
	176	! +arrays for phase speed c_u, c_v, c_w, indices for u\|v\|w_m_l\|r changed
	177	! +qswst_remote in case of atmosphere model with humidity coupled to ocean
	178	! Rayleigh damping for ocean, optionally calculate km and kh from initial
	179	! TKE e_init
	180	!
[98]	181	! 97 2007-06-21 08:23:15Z raasch
	182	! Initialization of salinity, call of init_ocean
	183	!
[90]	184	! 87 2007-05-22 15:46:47Z raasch
	185	! var_hom and var_sum renamed pr_palm
	186	!
[77]	187	! 75 2007-03-22 09:54:05Z raasch
[73]	188	! Arrays for radiation boundary conditions are allocated (u_m_l, u_m_r, etc.),
	189	! bugfix for cases with the outflow damping layer extending over more than one
[75]	190	! subdomain, moisture renamed humidity,
	191	! new initializing action "by_user" calls user_init_3d_model,
[72]	192	! precipitation_amount/rate, ts_value are allocated, +module netcdf_control,
[51]	193	! initial velocities at nzb+1 are regarded for volume
	194	! flow control in case they have been set zero before (to avoid small timesteps)
[75]	195	! -uvmean_outflow, uxrp, vynp eliminated
[1]	196	!
[39]	197	! 19 2007-02-23 04:53:48Z raasch
	198	! +handling of top fluxes
	199	!
[3]	200	! RCS Log replace by Id keyword, revision history cleaned up
	201	!
[1]	202	! Revision 1.49 2006/08/22 15:59:07 raasch
	203	! No optimization of this file on the ibmy (Yonsei Univ.)
	204	!
	205	! Revision 1.1 1998/03/09 16:22:22 raasch
	206	! Initial revision
	207	!
	208	!
	209	! Description:
	210	! ------------
	211	! Allocation of arrays and initialization of the 3D model via
	212	! a) pre-run the 1D model
	213	! or
	214	! b) pre-set constant linear profiles
	215	! or
	216	! c) read values of a previous run
	217	!------------------------------------------------------------------------------!
	218
[667]	219	USE advec_ws
[1]	220	USE arrays_3d
	221	USE averaging
[72]	222	USE cloud_parameters
[1]	223	USE constants
	224	USE control_parameters
	225	USE cpulog
[978]	226	USE grid_variables
[1]	227	USE indices
	228	USE interfaces
	229	USE model_1d
[51]	230	USE netcdf_control
[1]	231	USE particle_attributes
	232	USE pegrid
	233	USE profil_parameter
	234	USE random_function_mod
	235	USE statistics
	236
	237	IMPLICIT NONE
	238
[559]	239	INTEGER :: i, ind_array(1), j, k, sr
[1]	240
[485]	241	INTEGER, DIMENSION(:), ALLOCATABLE :: ngp_2dh_l
[1]	242
[132]	243	INTEGER, DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l, &
[996]	244	ngp_2dh_s_inner_l
[1]	245
	246	REAL, DIMENSION(1:2) :: volume_flow_area_l, volume_flow_initial_l
	247
[485]	248	REAL, DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l, ngp_3d_inner_tmp
[1]	249
[485]	250
[1]	251	!
	252	!-- Allocate arrays
	253	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
	254	ngp_3d(0:statistic_regions), &
	255	ngp_3d_inner(0:statistic_regions), &
	256	ngp_3d_inner_l(0:statistic_regions), &
[485]	257	ngp_3d_inner_tmp(0:statistic_regions), &
[1]	258	sums_divnew_l(0:statistic_regions), &
	259	sums_divold_l(0:statistic_regions) )
[785]	260	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
[143]	261	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
[1]	262	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
[132]	263	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
	264	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
[996]	265	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
[87]	266	sums(nzb:nzt+1,pr_palm+max_pr_user), &
	267	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
[1]	268	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
	269	sums_up_fraction_l(10,3,0:statistic_regions), &
[48]	270	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
[394]	271	ts_value(dots_max,0:statistic_regions) )
[978]	272	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
[1]	273
[1001]	274	ALLOCATE( rif(nysg:nyng,nxlg:nxrg), shf(nysg:nyng,nxlg:nxrg), &
	275	ts(nysg:nyng,nxlg:nxrg), tswst(nysg:nyng,nxlg:nxrg), &
	276	us(nysg:nyng,nxlg:nxrg), usws(nysg:nyng,nxlg:nxrg), &
	277	uswst(nysg:nyng,nxlg:nxrg), vsws(nysg:nyng,nxlg:nxrg), &
	278	vswst(nysg:nyng,nxlg:nxrg), z0(nysg:nyng,nxlg:nxrg), &
[978]	279	z0h(nysg:nyng,nxlg:nxrg) )
[1]	280
[1010]	281	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
	282	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	283	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	284	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	285	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	286
	287	#if defined( __nopointer )
	288	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	289	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	290	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	291	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	292	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	293	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	294	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	295	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	296	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	297	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	298	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	299	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	300	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	301	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	302	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	303	#else
	304	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	305	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	306	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	307	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	308	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	309	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	310	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	311	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	312	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	313	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	314	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	315	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	316	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	317	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1032]	318	IF ( .NOT. neutral ) THEN
	319	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	320	ENDIF
[1010]	321	#endif
	322
[673]	323	!
[707]	324	!-- Following array is required for perturbation pressure within the iterative
	325	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
	326	!-- the weighted average of the substeps and cannot be used in the Poisson
	327	!-- solver.
	328	IF ( psolver == 'sor' ) THEN
	329	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	330	ELSEIF ( psolver == 'multigrid' ) THEN
	331	!
	332	!-- For performance reasons, multigrid is using one ghost layer only
	333	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[673]	334	ENDIF
[1]	335
[75]	336	IF ( humidity .OR. passive_scalar ) THEN
[1]	337	!
[75]	338	!-- 2D-humidity/scalar arrays
[1001]	339	ALLOCATE ( qs(nysg:nyng,nxlg:nxrg), &
	340	qsws(nysg:nyng,nxlg:nxrg), &
	341	qswst(nysg:nyng,nxlg:nxrg) )
[1]	342
	343	!
[75]	344	!-- 3D-humidity/scalar arrays
[1010]	345	#if defined( __nopointer )
	346	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	347	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	348	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	349	#else
[667]	350	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	351	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	352	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	353	#endif
[1]	354
	355	!
[75]	356	!-- 3D-arrays needed for humidity only
	357	IF ( humidity ) THEN
[1010]	358	#if defined( __nopointer )
	359	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	360	#else
[667]	361	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	362	#endif
[1]	363
	364	IF ( cloud_physics ) THEN
[1053]	365
[1]	366	!
	367	!-- Liquid water content
[1010]	368	#if defined( __nopointer )
	369	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	370	#else
[667]	371	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	372	#endif
[72]	373	!
	374	!-- Precipitation amount and rate (only needed if output is switched)
[667]	375	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
	376	precipitation_rate(nysg:nyng,nxlg:nxrg) )
[1053]	377
	378	IF ( icloud_scheme == 0 ) THEN
	379	!
	380	!-- 1D-rain sedimentation fluxes and rain drop size distribution
	381	!-- properties
	382	ALLOCATE ( dr(nzb:nzt+1), lambda_r(nzb:nzt+1), &
	383	mu_r(nzb:nzt+1), sed_q(nzb:nzt+1), &
	384	sed_qr(nzb:nzt+1), sed_nr(nzb:nzt+1),&
	385	xr(nzb:nzt+1) )
	386	!
	387	!-- 2D-rain water content and rain drop concentration arrays
	388	ALLOCATE ( qrs(nysg:nyng,nxlg:nxrg), &
	389	qrsws(nysg:nyng,nxlg:nxrg), &
	390	qrswst(nysg:nyng,nxlg:nxrg), &
	391	nrs(nysg:nyng,nxlg:nxrg), &
	392	nrsws(nysg:nyng,nxlg:nxrg), &
	393	nrswst(nysg:nyng,nxlg:nxrg) )
	394	!
	395	!-- 3D-rain water content, rain drop concentration arrays
	396	#if defined( __nopointer )
	397	ALLOCATE( nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	398	nr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	399	qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	400	qr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	401	tnr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	402	tqr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	403	#else
	404	ALLOCATE( nr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	405	nr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	406	nr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	407	qr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	408	qr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	409	qr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	410	#endif
	411	!
	412	!-- 3D-tendency arrays
	413	ALLOCATE( tend_nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	414	tend_pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	415	tend_q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	416	tend_qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	417	!
	418	!-- 3d-precipitation rate
	419	IF ( precipitation ) THEN
	420	ALLOCATE( prr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	421	ENDIF
	422
	423	ENDIF
[1]	424	ENDIF
	425
	426	IF ( cloud_droplets ) THEN
	427	!
[1010]	428	!-- Liquid water content, change in liquid water content
	429	#if defined( __nopointer )
	430	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	431	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	432	#else
[667]	433	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1010]	434	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	435	#endif
	436	!
	437	!-- Real volume of particles (with weighting), volume of particles
	438	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	439	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1]	440	ENDIF
	441
	442	ENDIF
	443
	444	ENDIF
	445
[94]	446	IF ( ocean ) THEN
[1001]	447	ALLOCATE( saswsb(nysg:nyng,nxlg:nxrg), &
	448	saswst(nysg:nyng,nxlg:nxrg) )
[1010]	449	#if defined( __nopointer )
	450	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	451	rho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	452	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	453	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	454	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	455	#else
[667]	456	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	457	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	458	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	459	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	460	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[388]	461	prho => prho_1
	462	rho => rho_1 ! routines calc_mean_profile and diffusion_e require
	463	! density to be apointer
[1010]	464	#endif
[108]	465	IF ( humidity_remote ) THEN
[667]	466	ALLOCATE( qswst_remote(nysg:nyng,nxlg:nxrg))
[108]	467	qswst_remote = 0.0
	468	ENDIF
[94]	469	ENDIF
	470
[1]	471	!
	472	!-- 3D-array for storing the dissipation, needed for calculating the sgs
	473	!-- particle velocities
[1065]	474	IF ( use_sgs_for_particles .OR. wang_kernel .OR. turbulence ) THEN
[667]	475	ALLOCATE ( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[181]	476	ELSE
	477	ALLOCATE ( diss(2,2,2) ) ! required because diss is used as a
	478	! formal parameter
[1]	479	ENDIF
	480
	481	IF ( dt_dosp /= 9999999.9 ) THEN
	482	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
	483	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
[146]	484	spectrum_x = 0.0
	485	spectrum_y = 0.0
[1]	486	ENDIF
	487
	488	!
[138]	489	!-- 3D-arrays for the leaf area density and the canopy drag coefficient
	490	IF ( plant_canopy ) THEN
[667]	491	ALLOCATE ( lad_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	492	lad_u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	493	lad_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	494	lad_w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	495	cdc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[153]	496
	497	IF ( passive_scalar ) THEN
[996]	498	ALLOCATE ( sls(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	499	sec(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[153]	500	ENDIF
	501
	502	IF ( cthf /= 0.0 ) THEN
[996]	503	ALLOCATE ( lai(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	504	canopy_heat_flux(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[153]	505	ENDIF
	506
[138]	507	ENDIF
	508
	509	!
[51]	510	!-- 4D-array for storing the Rif-values at vertical walls
	511	IF ( topography /= 'flat' ) THEN
[667]	512	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
[51]	513	rif_wall = 0.0
	514	ENDIF
	515
	516	!
[106]	517	!-- Arrays to store velocity data from t-dt and the phase speeds which
	518	!-- are needed for radiation boundary conditions
[73]	519	IF ( outflow_l ) THEN
[667]	520	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
	521	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
	522	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
[73]	523	ENDIF
	524	IF ( outflow_r ) THEN
[667]	525	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	526	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	527	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
[73]	528	ENDIF
[106]	529	IF ( outflow_l .OR. outflow_r ) THEN
[667]	530	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
	531	c_w(nzb:nzt+1,nysg:nyng) )
[106]	532	ENDIF
[73]	533	IF ( outflow_s ) THEN
[667]	534	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
	535	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
	536	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
[73]	537	ENDIF
	538	IF ( outflow_n ) THEN
[667]	539	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	540	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	541	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
[73]	542	ENDIF
[106]	543	IF ( outflow_s .OR. outflow_n ) THEN
[667]	544	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
	545	c_w(nzb:nzt+1,nxlg:nxrg) )
[106]	546	ENDIF
[996]	547	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
[978]	548	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
	549	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
	550	ENDIF
[73]	551
[978]	552
[1010]	553	#if ! defined( __nopointer )
[73]	554	!
[1]	555	!-- Initial assignment of the pointers
[1001]	556	e => e_1; e_p => e_2; te_m => e_3
[1032]	557	IF ( .NOT. neutral ) THEN
	558	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
	559	ELSE
	560	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
	561	ENDIF
[1001]	562	u => u_1; u_p => u_2; tu_m => u_3
	563	v => v_1; v_p => v_2; tv_m => v_3
	564	w => w_1; w_p => w_2; tw_m => w_3
[1]	565
[1001]	566	IF ( humidity .OR. passive_scalar ) THEN
	567	q => q_1; q_p => q_2; tq_m => q_3
[1053]	568	IF ( humidity ) THEN
	569	vpt => vpt_1
	570	IF ( cloud_physics ) THEN
	571	ql => ql_1
	572	IF ( icloud_scheme == 0 ) THEN
	573	qr => qr_1; qr_p => qr_2; tqr_m => qr_3
	574	nr => nr_1; nr_p => nr_2; tnr_m => nr_3
	575	ENDIF
	576	ENDIF
	577	ENDIF
[1001]	578	IF ( cloud_droplets ) THEN
	579	ql => ql_1
	580	ql_c => ql_2
[1]	581	ENDIF
[1001]	582	ENDIF
[1]	583
[1001]	584	IF ( ocean ) THEN
	585	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
	586	ENDIF
[1010]	587	#endif
[1]	588
	589	!
[709]	590	!-- Allocate arrays containing the RK coefficient for calculation of
	591	!-- perturbation pressure and turbulent fluxes. At this point values are
	592	!-- set for pressure calculation during initialization (where no timestep
	593	!-- is done). Further below the values needed within the timestep scheme
	594	!-- will be set.
	595	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
[673]	596	weight_pres(1:intermediate_timestep_count_max) )
[709]	597	weight_substep = 1.0
	598	weight_pres = 1.0
	599	intermediate_timestep_count = 1 ! needed when simulated_time = 0.0
[673]	600
	601	!
[1]	602	!-- Initialize model variables
[147]	603	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[328]	604	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[1]	605	!
	606	!-- First model run of a possible job queue.
	607	!-- Initial profiles of the variables must be computes.
	608	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
	609	!
	610	!-- Use solutions of the 1D model as initial profiles,
	611	!-- start 1D model
	612	CALL init_1d_model
	613	!
	614	!-- Transfer initial profiles to the arrays of the 3D model
[667]	615	DO i = nxlg, nxrg
	616	DO j = nysg, nyng
[1]	617	e(:,j,i) = e1d
	618	kh(:,j,i) = kh1d
	619	km(:,j,i) = km1d
	620	pt(:,j,i) = pt_init
	621	u(:,j,i) = u1d
	622	v(:,j,i) = v1d
	623	ENDDO
	624	ENDDO
	625
[75]	626	IF ( humidity .OR. passive_scalar ) THEN
[667]	627	DO i = nxlg, nxrg
	628	DO j = nysg, nyng
[1]	629	q(:,j,i) = q_init
	630	ENDDO
	631	ENDDO
[1053]	632	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	633	DO i = nxlg, nxrg
	634	DO j = nysg, nyng
	635	qr(:,j,i) = qr_init
	636	nr(:,j,i) = nr_init
	637	ENDDO
	638	ENDDO
	639	ENDIF
[1]	640	ENDIF
	641
	642	IF ( .NOT. constant_diffusion ) THEN
[667]	643	DO i = nxlg, nxrg
	644	DO j = nysg, nyng
[1]	645	e(:,j,i) = e1d
	646	ENDDO
	647	ENDDO
	648	!
	649	!-- Store initial profiles for output purposes etc.
	650	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	651
	652	IF ( prandtl_layer ) THEN
	653	rif = rif1d(nzb+1)
	654	ts = 0.0 ! could actually be computed more accurately in the
	655	! 1D model. Update when opportunity arises.
	656	us = us1d
	657	usws = usws1d
	658	vsws = vsws1d
	659	ELSE
	660	ts = 0.0 ! must be set, because used in
	661	rif = 0.0 ! flowste
	662	us = 0.0
	663	usws = 0.0
	664	vsws = 0.0
	665	ENDIF
	666
	667	ELSE
	668	e = 0.0 ! must be set, because used in
	669	rif = 0.0 ! flowste
	670	ts = 0.0
	671	us = 0.0
	672	usws = 0.0
	673	vsws = 0.0
	674	ENDIF
[102]	675	uswst = top_momentumflux_u
	676	vswst = top_momentumflux_v
[1]	677
	678	!
	679	!-- In every case qs = 0.0 (see also pt)
	680	!-- This could actually be computed more accurately in the 1D model.
	681	!-- Update when opportunity arises!
[1053]	682	IF ( humidity .OR. passive_scalar ) THEN
	683	qs = 0.0
	684	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	685	qrs = 0.0
	686	nrs = 0.0
	687	ENDIF
	688	ENDIF
[1]	689
	690	!
	691	!-- inside buildings set velocities back to zero
	692	IF ( topography /= 'flat' ) THEN
	693	DO i = nxl-1, nxr+1
	694	DO j = nys-1, nyn+1
	695	u(nzb:nzb_u_inner(j,i),j,i) = 0.0
	696	v(nzb:nzb_v_inner(j,i),j,i) = 0.0
	697	ENDDO
	698	ENDDO
[667]	699
[1]	700	!
	701	!-- WARNING: The extra boundary conditions set after running the
	702	!-- ------- 1D model impose an error on the divergence one layer
	703	!-- below the topography; need to correct later
	704	!-- ATTENTION: Provisional correction for Piacsek & Williams
	705	!-- --------- advection scheme: keep u and v zero one layer below
	706	!-- the topography.
[667]	707	IF ( ibc_uv_b == 1 ) THEN
	708	!
[1]	709	!-- Neumann condition
	710	DO i = nxl-1, nxr+1
	711	DO j = nys-1, nyn+1
	712	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
	713	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
	714	ENDDO
	715	ENDDO
	716
	717	ENDIF
	718
	719	ENDIF
	720
	721	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
	722	THEN
	723	!
	724	!-- Use constructed initial profiles (velocity constant with height,
	725	!-- temperature profile with constant gradient)
[667]	726	DO i = nxlg, nxrg
	727	DO j = nysg, nyng
[1]	728	pt(:,j,i) = pt_init
	729	u(:,j,i) = u_init
	730	v(:,j,i) = v_init
	731	ENDDO
	732	ENDDO
[75]	733
[1]	734	!
[292]	735	!-- Set initial horizontal velocities at the lowest computational grid
	736	!-- levels to zero in order to avoid too small time steps caused by the
	737	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
	738	!-- in the limiting formula!). The original values are stored to be later
	739	!-- used for volume flow control.
[667]	740	DO i = nxlg, nxrg
	741	DO j = nysg, nyng
[1]	742	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0
	743	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0
	744	ENDDO
	745	ENDDO
	746
[75]	747	IF ( humidity .OR. passive_scalar ) THEN
[667]	748	DO i = nxlg, nxrg
	749	DO j = nysg, nyng
[1]	750	q(:,j,i) = q_init
	751	ENDDO
	752	ENDDO
[1053]	753	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	754	DO i = nxlg, nxrg
	755	DO j = nysg, nyng
	756	qr(:,j,i) = qr_init
	757	nr(:,j,i) = nr_init
	758	ENDDO
	759	ENDDO
	760	ENDIF
[1]	761	ENDIF
	762
[94]	763	IF ( ocean ) THEN
[667]	764	DO i = nxlg, nxrg
	765	DO j = nysg, nyng
[94]	766	sa(:,j,i) = sa_init
	767	ENDDO
	768	ENDDO
	769	ENDIF
[1]	770
	771	IF ( constant_diffusion ) THEN
	772	km = km_constant
	773	kh = km / prandtl_number
[108]	774	e = 0.0
	775	ELSEIF ( e_init > 0.0 ) THEN
	776	DO k = nzb+1, nzt
	777	km(k,:,:) = 0.1 * l_grid(k) * SQRT( e_init )
	778	ENDDO
	779	km(nzb,:,:) = km(nzb+1,:,:)
	780	km(nzt+1,:,:) = km(nzt,:,:)
	781	kh = km / prandtl_number
	782	e = e_init
[1]	783	ELSE
[108]	784	IF ( .NOT. ocean ) THEN
	785	kh = 0.01 ! there must exist an initial diffusion, because
	786	km = 0.01 ! otherwise no TKE would be produced by the
	787	! production terms, as long as not yet
	788	! e = (u/cm)*2 at k=nzb+1
	789	ELSE
	790	kh = 0.00001
	791	km = 0.00001
	792	ENDIF
	793	e = 0.0
[1]	794	ENDIF
[102]	795	rif = 0.0
	796	ts = 0.0
	797	us = 0.0
	798	usws = 0.0
	799	uswst = top_momentumflux_u
	800	vsws = 0.0
	801	vswst = top_momentumflux_v
[75]	802	IF ( humidity .OR. passive_scalar ) qs = 0.0
[1]	803
	804	!
	805	!-- Compute initial temperature field and other constants used in case
	806	!-- of a sloping surface
	807	IF ( sloping_surface ) CALL init_slope
	808
[46]	809	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
	810	THEN
	811	!
	812	!-- Initialization will completely be done by the user
	813	CALL user_init_3d_model
	814
[1]	815	ENDIF
[667]	816	!
	817	!-- Bottom boundary
	818	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
	819	u(nzb,:,:) = 0.0
	820	v(nzb,:,:) = 0.0
	821	ENDIF
[1]	822
	823	!
[151]	824	!-- Apply channel flow boundary condition
[132]	825	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
	826	u(nzt+1,:,:) = 0.0
	827	v(nzt+1,:,:) = 0.0
	828	ENDIF
	829
	830	!
[1]	831	!-- Calculate virtual potential temperature
[75]	832	IF ( humidity ) vpt = pt * ( 1.0 + 0.61 * q )
[1]	833
	834	!
	835	!-- Store initial profiles for output purposes etc.
	836	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	837	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
[667]	838	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
	839	hom(nzb,1,5,:) = 0.0
	840	hom(nzb,1,6,:) = 0.0
[1]	841	ENDIF
	842	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	843	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
	844	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
	845
[97]	846	IF ( ocean ) THEN
	847	!
	848	!-- Store initial salinity profile
	849	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
	850	ENDIF
[1]	851
[75]	852	IF ( humidity ) THEN
[1]	853	!
	854	!-- Store initial profile of total water content, virtual potential
	855	!-- temperature
	856	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	857	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
	858	IF ( cloud_physics .OR. cloud_droplets ) THEN
	859	!
	860	!-- Store initial profile of specific humidity and potential
	861	!-- temperature
	862	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	863	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	864	ENDIF
	865	ENDIF
	866
	867	IF ( passive_scalar ) THEN
	868	!
	869	!-- Store initial scalar profile
	870	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	871	ENDIF
	872
	873	!
[19]	874	!-- Initialize fluxes at bottom surface
[1]	875	IF ( use_surface_fluxes ) THEN
	876
	877	IF ( constant_heatflux ) THEN
	878	!
	879	!-- Heat flux is prescribed
	880	IF ( random_heatflux ) THEN
	881	CALL disturb_heatflux
	882	ELSE
	883	shf = surface_heatflux
	884	!
	885	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
	886	IF ( TRIM( topography ) /= 'flat' ) THEN
[667]	887	DO i = nxlg, nxrg
	888	DO j = nysg, nyng
[1]	889	IF ( nzb_s_inner(j,i) /= 0 ) THEN
	890	shf(j,i) = wall_heatflux(0)
	891	ENDIF
	892	ENDDO
	893	ENDDO
	894	ENDIF
	895	ENDIF
	896	ENDIF
	897
	898	!
	899	!-- Determine the near-surface water flux
[75]	900	IF ( humidity .OR. passive_scalar ) THEN
[1073]	901	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
[1053]	902	IF ( constant_waterflux_qr ) THEN
	903	qrsws = surface_waterflux_qr
	904	ENDIF
	905	IF (constant_waterflux_nr ) THEN
	906	nrsws = surface_waterflux_nr
	907	ENDIF
	908	ENDIF
[1]	909	IF ( constant_waterflux ) THEN
	910	qsws = surface_waterflux
[407]	911	!
	912	!-- Over topography surface_waterflux is replaced by
	913	!-- wall_humidityflux(0)
	914	IF ( TRIM( topography ) /= 'flat' ) THEN
	915	wall_qflux = wall_humidityflux
[667]	916	DO i = nxlg, nxrg
	917	DO j = nysg, nyng
[407]	918	IF ( nzb_s_inner(j,i) /= 0 ) THEN
	919	qsws(j,i) = wall_qflux(0)
	920	ENDIF
	921	ENDDO
	922	ENDDO
	923	ENDIF
[1]	924	ENDIF
	925	ENDIF
	926
	927	ENDIF
	928
	929	!
[19]	930	!-- Initialize fluxes at top surface
[94]	931	!-- Currently, only the heatflux and salinity flux can be prescribed.
	932	!-- The latent flux is zero in this case!
[19]	933	IF ( use_top_fluxes ) THEN
	934
	935	IF ( constant_top_heatflux ) THEN
	936	!
	937	!-- Heat flux is prescribed
	938	tswst = top_heatflux
	939
[1053]	940	IF ( humidity .OR. passive_scalar ) THEN
	941	qswst = 0.0
	942	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	943	nrswst = 0.0
	944	qrswst = 0.0
	945	ENDIF
	946	ENDIF
[94]	947
	948	IF ( ocean ) THEN
[95]	949	saswsb = bottom_salinityflux
[94]	950	saswst = top_salinityflux
	951	ENDIF
[102]	952	ENDIF
[19]	953
[102]	954	!
	955	!-- Initialization in case of a coupled model run
	956	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
	957	tswst = 0.0
	958	ENDIF
	959
[19]	960	ENDIF
	961
	962	!
[1]	963	!-- Initialize Prandtl layer quantities
	964	IF ( prandtl_layer ) THEN
	965
	966	z0 = roughness_length
[978]	967	z0h = z0h_factor * z0
[1]	968
	969	IF ( .NOT. constant_heatflux ) THEN
	970	!
	971	!-- Surface temperature is prescribed. Here the heat flux cannot be
	972	!-- simply estimated, because therefore rif, u* and theta* would have
	973	!-- to be computed by iteration. This is why the heat flux is assumed
	974	!-- to be zero before the first time step. It approaches its correct
	975	!-- value in the course of the first few time steps.
	976	shf = 0.0
	977	ENDIF
	978
[75]	979	IF ( humidity .OR. passive_scalar ) THEN
[1001]	980	IF ( .NOT. constant_waterflux ) qsws = 0.0
[1053]	981	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	982	IF ( .NOT. constant_waterflux_qr ) THEN
	983	qrsws = 0.0
	984	ENDIF
	985	IF ( .NOT. constant_waterflux_nr ) THEN
	986	nrsws = 0.0
	987	ENDIF
	988	ENDIF
[1]	989	ENDIF
	990
	991	ENDIF
	992
[152]	993
	994	!
[707]	995	!-- For the moment, vertical velocity is zero
	996	w = 0.0
[1]	997
	998	!
	999	!-- Initialize array sums (must be defined in first call of pres)
	1000	sums = 0.0
	1001
	1002	!
[707]	1003	!-- In case of iterative solvers, p must get an initial value
	1004	IF ( psolver == 'multigrid' .OR. psolver == 'sor' ) p = 0.0
	1005
	1006	!
[72]	1007	!-- Treating cloud physics, liquid water content and precipitation amount
	1008	!-- are zero at beginning of the simulation
	1009	IF ( cloud_physics ) THEN
	1010	ql = 0.0
	1011	IF ( precipitation ) precipitation_amount = 0.0
	1012	ENDIF
[673]	1013	!
[1]	1014	!-- Impose vortex with vertical axis on the initial velocity profile
	1015	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	1016	CALL init_rankine
	1017	ENDIF
	1018
	1019	!
	1020	!-- Impose temperature anomaly (advection test only)
	1021	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
	1022	CALL init_pt_anomaly
	1023	ENDIF
	1024
	1025	!
	1026	!-- If required, change the surface temperature at the start of the 3D run
	1027	IF ( pt_surface_initial_change /= 0.0 ) THEN
	1028	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	1029	ENDIF
	1030
	1031	!
	1032	!-- If required, change the surface humidity/scalar at the start of the 3D
	1033	!-- run
[75]	1034	IF ( ( humidity .OR. passive_scalar ) .AND. &
[1]	1035	q_surface_initial_change /= 0.0 ) THEN
	1036	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
[1053]	1037	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	1038	IF ( qr_surface_initial_change /= 0.0 ) THEN
	1039	qr(nzb,:,:) = qr(nzb,:,:) + qr_surface_initial_change
	1040	ELSEIF ( nr_surface_initial_change /= 0.0 ) THEN
	1041	nr(nzb,:,:) = nr(nzb,:,:) + nr_surface_initial_change
	1042	ENDIF
	1043	ENDIF
[1]	1044	ENDIF
	1045
	1046	!
	1047	!-- Initialize the random number generator (from numerical recipes)
	1048	CALL random_function_ini
	1049
	1050	!
	1051	!-- Initialize old and new time levels.
[1001]	1052	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
[1]	1053	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
	1054
[75]	1055	IF ( humidity .OR. passive_scalar ) THEN
[1001]	1056	tq_m = 0.0
[1]	1057	q_p = q
[1053]	1058	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	1059	tqr_m = 0.0
	1060	qr_p = qr
	1061	tnr_m = 0.0
	1062	nr_p = nr
	1063	ENDIF
[1]	1064	ENDIF
	1065
[94]	1066	IF ( ocean ) THEN
	1067	tsa_m = 0.0
	1068	sa_p = sa
	1069	ENDIF
[667]	1070
[94]	1071
[147]	1072	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
[667]	1073	TRIM( initializing_actions ) == 'cyclic_fill' ) &
[1]	1074	THEN
	1075	!
[767]	1076	!-- When reading data for cyclic fill of 3D prerun data files, read
	1077	!-- some of the global variables from the restart file which are required
	1078	!-- for initializing the inflow
[328]	1079	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[559]	1080
[759]	1081	DO i = 0, io_blocks-1
	1082	IF ( i == io_group ) THEN
	1083	CALL read_parts_of_var_list
	1084	CALL close_file( 13 )
	1085	ENDIF
	1086	#if defined( __parallel )
	1087	CALL MPI_BARRIER( comm2d, ierr )
	1088	#endif
	1089	ENDDO
[328]	1090
[767]	1091	ENDIF
	1092
[151]	1093	!
[767]	1094	!-- Read binary data from restart file
	1095	DO i = 0, io_blocks-1
	1096	IF ( i == io_group ) THEN
	1097	CALL read_3d_binary
	1098	ENDIF
	1099	#if defined( __parallel )
	1100	CALL MPI_BARRIER( comm2d, ierr )
	1101	#endif
	1102	ENDDO
	1103
[328]	1104	!
[767]	1105	!-- Initialization of the turbulence recycling method
	1106	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
	1107	turbulent_inflow ) THEN
	1108	!
	1109	!-- First store the profiles to be used at the inflow.
	1110	!-- These profiles are the (temporally) and horizontally averaged vertical
	1111	!-- profiles from the prerun. Alternatively, prescribed profiles
	1112	!-- for u,v-components can be used.
	1113	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,5) )
[151]	1114
[767]	1115	IF ( use_prescribed_profile_data ) THEN
	1116	mean_inflow_profiles(:,1) = u_init ! u
	1117	mean_inflow_profiles(:,2) = v_init ! v
	1118	ELSE
[328]	1119	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
	1120	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
[767]	1121	ENDIF
	1122	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
	1123	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
[151]	1124
	1125	!
[767]	1126	!-- If necessary, adjust the horizontal flow field to the prescribed
	1127	!-- profiles
	1128	IF ( use_prescribed_profile_data ) THEN
	1129	DO i = nxlg, nxrg
[667]	1130	DO j = nysg, nyng
[328]	1131	DO k = nzb, nzt+1
[767]	1132	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
	1133	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
[328]	1134	ENDDO
[151]	1135	ENDDO
[767]	1136	ENDDO
	1137	ENDIF
[151]	1138
	1139	!
[767]	1140	!-- Use these mean profiles at the inflow (provided that Dirichlet
	1141	!-- conditions are used)
	1142	IF ( inflow_l ) THEN
	1143	DO j = nysg, nyng
	1144	DO k = nzb, nzt+1
	1145	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
	1146	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
	1147	w(k,j,nxlg:-1) = 0.0
	1148	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
	1149	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
	1150	ENDDO
	1151	ENDDO
	1152	ENDIF
	1153
[151]	1154	!
[767]	1155	!-- Calculate the damping factors to be used at the inflow. For a
	1156	!-- turbulent inflow the turbulent fluctuations have to be limited
	1157	!-- vertically because otherwise the turbulent inflow layer will grow
	1158	!-- in time.
	1159	IF ( inflow_damping_height == 9999999.9 ) THEN
	1160	!
	1161	!-- Default: use the inversion height calculated by the prerun; if
	1162	!-- this is zero, inflow_damping_height must be explicitly
	1163	!-- specified.
	1164	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0 ) THEN
	1165	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
	1166	ELSE
	1167	WRITE( message_string, * ) 'inflow_damping_height must be ',&
	1168	'explicitly specified because&the inversion height ', &
	1169	'calculated by the prerun is zero.'
	1170	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
[292]	1171	ENDIF
[151]	1172
[767]	1173	ENDIF
	1174
	1175	IF ( inflow_damping_width == 9999999.9 ) THEN
[151]	1176	!
[767]	1177	!-- Default for the transition range: one tenth of the undamped
	1178	!-- layer
	1179	inflow_damping_width = 0.1 * inflow_damping_height
[151]	1180
[767]	1181	ENDIF
[151]	1182
[767]	1183	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
[151]	1184
[767]	1185	DO k = nzb, nzt+1
[151]	1186
[767]	1187	IF ( zu(k) <= inflow_damping_height ) THEN
	1188	inflow_damping_factor(k) = 1.0
[996]	1189	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
	1190	inflow_damping_factor(k) = 1.0 - &
	1191	( zu(k) - inflow_damping_height ) / &
	1192	inflow_damping_width
[767]	1193	ELSE
	1194	inflow_damping_factor(k) = 0.0
	1195	ENDIF
[151]	1196
[767]	1197	ENDDO
[151]	1198
[147]	1199	ENDIF
	1200
[152]	1201	!
[359]	1202	!-- Inside buildings set velocities and TKE back to zero
	1203	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
	1204	topography /= 'flat' ) THEN
	1205	!
	1206	!-- Inside buildings set velocities and TKE back to zero.
	1207	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
	1208	!-- maybe revise later.
[1001]	1209	DO i = nxlg, nxrg
	1210	DO j = nysg, nyng
	1211	u (nzb:nzb_u_inner(j,i),j,i) = 0.0
	1212	v (nzb:nzb_v_inner(j,i),j,i) = 0.0
	1213	w (nzb:nzb_w_inner(j,i),j,i) = 0.0
	1214	e (nzb:nzb_w_inner(j,i),j,i) = 0.0
	1215	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0
	1216	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0
	1217	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
	1218	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
	1219	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
[359]	1220	ENDDO
[1001]	1221	ENDDO
[359]	1222
	1223	ENDIF
	1224
	1225	!
[1]	1226	!-- Calculate initial temperature field and other constants used in case
	1227	!-- of a sloping surface
	1228	IF ( sloping_surface ) CALL init_slope
	1229
	1230	!
	1231	!-- Initialize new time levels (only done in order to set boundary values
	1232	!-- including ghost points)
	1233	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
[1053]	1234	IF ( humidity .OR. passive_scalar ) THEN
	1235	q_p = q
	1236	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	1237	qr_p = qr
	1238	nr_p = nr
	1239	ENDIF
	1240	ENDIF
[94]	1241	IF ( ocean ) sa_p = sa
[1]	1242
[181]	1243	!
	1244	!-- Allthough tendency arrays are set in prognostic_equations, they have
	1245	!-- have to be predefined here because they are used (but multiplied with 0)
	1246	!-- there before they are set.
[1001]	1247	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
[1053]	1248	IF ( humidity .OR. passive_scalar ) THEN
	1249	tq_m = 0.0
	1250	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	1251	tqr_m = 0.0
	1252	tnr_m = 0.0
	1253	ENDIF
	1254	ENDIF
[1001]	1255	IF ( ocean ) tsa_m = 0.0
[181]	1256
[1]	1257	ELSE
	1258	!
	1259	!-- Actually this part of the programm should not be reached
[254]	1260	message_string = 'unknown initializing problem'
	1261	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
[1]	1262	ENDIF
	1263
[151]	1264
	1265	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
[1]	1266	!
[151]	1267	!-- Initialize old timelevels needed for radiation boundary conditions
	1268	IF ( outflow_l ) THEN
	1269	u_m_l(:,:,:) = u(:,:,1:2)
	1270	v_m_l(:,:,:) = v(:,:,0:1)
	1271	w_m_l(:,:,:) = w(:,:,0:1)
	1272	ENDIF
	1273	IF ( outflow_r ) THEN
	1274	u_m_r(:,:,:) = u(:,:,nx-1:nx)
	1275	v_m_r(:,:,:) = v(:,:,nx-1:nx)
	1276	w_m_r(:,:,:) = w(:,:,nx-1:nx)
	1277	ENDIF
	1278	IF ( outflow_s ) THEN
	1279	u_m_s(:,:,:) = u(:,0:1,:)
	1280	v_m_s(:,:,:) = v(:,1:2,:)
	1281	w_m_s(:,:,:) = w(:,0:1,:)
	1282	ENDIF
	1283	IF ( outflow_n ) THEN
	1284	u_m_n(:,:,:) = u(:,ny-1:ny,:)
	1285	v_m_n(:,:,:) = v(:,ny-1:ny,:)
	1286	w_m_n(:,:,:) = w(:,ny-1:ny,:)
	1287	ENDIF
[667]	1288
[151]	1289	ENDIF
[680]	1290
[667]	1291	!
	1292	!-- Calculate the initial volume flow at the right and north boundary
[709]	1293	IF ( conserve_volume_flow ) THEN
[151]	1294
[767]	1295	IF ( use_prescribed_profile_data ) THEN
[667]	1296
[732]	1297	volume_flow_initial_l = 0.0
	1298	volume_flow_area_l = 0.0
	1299
[667]	1300	IF ( nxr == nx ) THEN
	1301	DO j = nys, nyn
[709]	1302	DO k = nzb_2d(j,nx)+1, nzt
[667]	1303	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[767]	1304	u_init(k) * dzw(k)
	1305	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1306	ENDDO
	1307	ENDDO
	1308	ENDIF
	1309
	1310	IF ( nyn == ny ) THEN
	1311	DO i = nxl, nxr
	1312	DO k = nzb_2d(ny,i)+1, nzt
	1313	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1314	v_init(k) * dzw(k)
	1315	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1316	ENDDO
	1317	ENDDO
	1318	ENDIF
	1319
	1320	#if defined( __parallel )
	1321	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1322	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1323	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1324	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1325
	1326	#else
	1327	volume_flow_initial = volume_flow_initial_l
	1328	volume_flow_area = volume_flow_area_l
	1329	#endif
	1330
	1331	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1332
	1333	volume_flow_initial_l = 0.0
	1334	volume_flow_area_l = 0.0
	1335
	1336	IF ( nxr == nx ) THEN
	1337	DO j = nys, nyn
	1338	DO k = nzb_2d(j,nx)+1, nzt
	1339	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[667]	1340	hom_sum(k,1,0) * dzw(k)
	1341	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1342	ENDDO
	1343	ENDDO
	1344	ENDIF
	1345
	1346	IF ( nyn == ny ) THEN
	1347	DO i = nxl, nxr
[709]	1348	DO k = nzb_2d(ny,i)+1, nzt
[667]	1349	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
[709]	1350	hom_sum(k,2,0) * dzw(k)
[667]	1351	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1352	ENDDO
	1353	ENDDO
	1354	ENDIF
	1355
[732]	1356	#if defined( __parallel )
	1357	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1358	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1359	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1360	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1361
	1362	#else
	1363	volume_flow_initial = volume_flow_initial_l
	1364	volume_flow_area = volume_flow_area_l
	1365	#endif
	1366
[667]	1367	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	1368
[732]	1369	volume_flow_initial_l = 0.0
	1370	volume_flow_area_l = 0.0
	1371
[667]	1372	IF ( nxr == nx ) THEN
	1373	DO j = nys, nyn
[709]	1374	DO k = nzb_2d(j,nx)+1, nzt
[667]	1375	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[709]	1376	u(k,j,nx) * dzw(k)
[667]	1377	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1378	ENDDO
	1379	ENDDO
	1380	ENDIF
	1381
	1382	IF ( nyn == ny ) THEN
	1383	DO i = nxl, nxr
[709]	1384	DO k = nzb_2d(ny,i)+1, nzt
[667]	1385	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1386	v(k,ny,i) * dzw(k)
	1387	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1388	ENDDO
	1389	ENDDO
	1390	ENDIF
	1391
	1392	#if defined( __parallel )
[732]	1393	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1394	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1395	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1396	2, MPI_REAL, MPI_SUM, comm2d, ierr )
[667]	1397
	1398	#else
[732]	1399	volume_flow_initial = volume_flow_initial_l
	1400	volume_flow_area = volume_flow_area_l
[667]	1401	#endif
	1402
[732]	1403	ENDIF
	1404
[151]	1405	!
[709]	1406	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
	1407	!-- from u\|v_bulk instead
[680]	1408	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
	1409	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
	1410	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
	1411	ENDIF
[667]	1412
[680]	1413	ENDIF
	1414
[787]	1415	!
	1416	!-- Initialize quantities for special advections schemes
	1417	CALL init_advec
[680]	1418
[667]	1419	!
[680]	1420	!-- Impose random perturbation on the horizontal velocity field and then
	1421	!-- remove the divergences from the velocity field at the initial stage
	1422	IF ( create_disturbances .AND. &
	1423	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
	1424	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
	1425
	1426	CALL disturb_field( nzb_u_inner, tend, u )
	1427	CALL disturb_field( nzb_v_inner, tend, v )
	1428	n_sor = nsor_ini
	1429	CALL pres
	1430	n_sor = nsor
	1431	ENDIF
	1432
	1433	!
[138]	1434	!-- Initialization of the leaf area density
[709]	1435	IF ( plant_canopy ) THEN
[138]	1436
	1437	SELECT CASE ( TRIM( canopy_mode ) )
	1438
	1439	CASE( 'block' )
	1440
[667]	1441	DO i = nxlg, nxrg
	1442	DO j = nysg, nyng
[138]	1443	lad_s(:,j,i) = lad(:)
	1444	cdc(:,j,i) = drag_coefficient
[709]	1445	IF ( passive_scalar ) THEN
[153]	1446	sls(:,j,i) = leaf_surface_concentration
	1447	sec(:,j,i) = scalar_exchange_coefficient
	1448	ENDIF
[138]	1449	ENDDO
	1450	ENDDO
	1451
	1452	CASE DEFAULT
	1453
	1454	!
	1455	!-- The DEFAULT case is reached either if the parameter
	1456	!-- canopy mode contains a wrong character string or if the
	1457	!-- user has coded a special case in the user interface.
	1458	!-- There, the subroutine user_init_plant_canopy checks
	1459	!-- which of these two conditions applies.
	1460	CALL user_init_plant_canopy
	1461
	1462	END SELECT
	1463
[667]	1464	CALL exchange_horiz( lad_s, nbgp )
	1465	CALL exchange_horiz( cdc, nbgp )
[138]	1466
[709]	1467	IF ( passive_scalar ) THEN
[667]	1468	CALL exchange_horiz( sls, nbgp )
	1469	CALL exchange_horiz( sec, nbgp )
[153]	1470	ENDIF
	1471
	1472	!
	1473	!-- Sharp boundaries of the plant canopy in horizontal directions
	1474	!-- In vertical direction the interpolation is retained, as the leaf
	1475	!-- area density is initialised by prescribing a vertical profile
	1476	!-- consisting of piecewise linear segments. The upper boundary
	1477	!-- of the plant canopy is now defined by lad_w(pch_index,:,:) = 0.0.
	1478
[138]	1479	DO i = nxl, nxr
	1480	DO j = nys, nyn
	1481	DO k = nzb, nzt+1
[709]	1482	IF ( lad_s(k,j,i) > 0.0 ) THEN
[153]	1483	lad_u(k,j,i) = lad_s(k,j,i)
	1484	lad_u(k,j,i+1) = lad_s(k,j,i)
	1485	lad_v(k,j,i) = lad_s(k,j,i)
	1486	lad_v(k,j+1,i) = lad_s(k,j,i)
	1487	ENDIF
[138]	1488	ENDDO
	1489	DO k = nzb, nzt
	1490	lad_w(k,j,i) = 0.5 * ( lad_s(k+1,j,i) + lad_s(k,j,i) )
	1491	ENDDO
	1492	ENDDO
	1493	ENDDO
	1494
[153]	1495	lad_w(pch_index,:,:) = 0.0
	1496	lad_w(nzt+1,:,:) = lad_w(nzt,:,:)
[138]	1497
[667]	1498	CALL exchange_horiz( lad_u, nbgp )
	1499	CALL exchange_horiz( lad_v, nbgp )
	1500	CALL exchange_horiz( lad_w, nbgp )
[153]	1501
	1502	!
	1503	!-- Initialisation of the canopy heat source distribution
[709]	1504	IF ( cthf /= 0.0 ) THEN
[153]	1505	!
	1506	!-- Piecewise evaluation of the leaf area index by
	1507	!-- integration of the leaf area density
	1508	lai(:,:,:) = 0.0
[667]	1509	DO i = nxlg, nxrg
	1510	DO j = nysg, nyng
[153]	1511	DO k = pch_index-1, 0, -1
	1512	lai(k,j,i) = lai(k+1,j,i) + &
	1513	( 0.5 * ( lad_w(k+1,j,i) + &
	1514	lad_s(k+1,j,i) ) * &
	1515	( zw(k+1) - zu(k+1) ) ) + &
	1516	( 0.5 * ( lad_w(k,j,i) + &
	1517	lad_s(k+1,j,i) ) * &
	1518	( zu(k+1) - zw(k) ) )
	1519	ENDDO
	1520	ENDDO
	1521	ENDDO
	1522
	1523	!
	1524	!-- Evaluation of the upward kinematic vertical heat flux within the
	1525	!-- canopy
[667]	1526	DO i = nxlg, nxrg
	1527	DO j = nysg, nyng
[153]	1528	DO k = 0, pch_index
	1529	canopy_heat_flux(k,j,i) = cthf * &
	1530	exp( -0.6 * lai(k,j,i) )
	1531	ENDDO
	1532	ENDDO
	1533	ENDDO
	1534
	1535	!
	1536	!-- The near surface heat flux is derived from the heat flux
	1537	!-- distribution within the canopy
	1538	shf(:,:) = canopy_heat_flux(0,:,:)
	1539
	1540	ENDIF
	1541
[138]	1542	ENDIF
	1543
	1544	!
[1]	1545	!-- If required, initialize dvrp-software
	1546	IF ( dt_dvrp /= 9999999.9 ) CALL init_dvrp
	1547
[96]	1548	IF ( ocean ) THEN
[1]	1549	!
[96]	1550	!-- Initialize quantities needed for the ocean model
	1551	CALL init_ocean
[388]	1552
[96]	1553	ELSE
	1554	!
	1555	!-- Initialize quantities for handling cloud physics
[849]	1556	!-- This routine must be called before lpm_init, because
[96]	1557	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
[849]	1558	!-- lpm_init) is not defined.
[96]	1559	CALL init_cloud_physics
	1560	ENDIF
[1]	1561
	1562	!
	1563	!-- If required, initialize particles
[849]	1564	IF ( particle_advection ) CALL lpm_init
[1]	1565
	1566	!
[673]	1567	!-- Initialize the ws-scheme.
	1568	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
[1]	1569
	1570	!
[709]	1571	!-- Setting weighting factors for calculation of perturbation pressure
	1572	!-- and turbulent quantities from the RK substeps
	1573	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
	1574
[713]	1575	weight_substep(1) = 1./6.
	1576	weight_substep(2) = 3./10.
	1577	weight_substep(3) = 8./15.
[709]	1578
[713]	1579	weight_pres(1) = 1./3.
	1580	weight_pres(2) = 5./12.
	1581	weight_pres(3) = 1./4.
[709]	1582
	1583	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
	1584
[713]	1585	weight_substep(1) = 1./2.
	1586	weight_substep(2) = 1./2.
[673]	1587
[713]	1588	weight_pres(1) = 1./2.
	1589	weight_pres(2) = 1./2.
[709]	1590
[1001]	1591	ELSE ! for Euler-method
[709]	1592
[673]	1593	weight_substep(1) = 1.0
[709]	1594	weight_pres(1) = 1.0
	1595
[673]	1596	ENDIF
	1597
	1598	!
[1]	1599	!-- Initialize Rayleigh damping factors
[785]	1600	rdf = 0.0
	1601	rdf_sc = 0.0
[1]	1602	IF ( rayleigh_damping_factor /= 0.0 ) THEN
[108]	1603	IF ( .NOT. ocean ) THEN
	1604	DO k = nzb+1, nzt
	1605	IF ( zu(k) >= rayleigh_damping_height ) THEN
	1606	rdf(k) = rayleigh_damping_factor * &
[1]	1607	( SIN( pi * 0.5 * ( zu(k) - rayleigh_damping_height ) &
	1608	/ ( zu(nzt) - rayleigh_damping_height ) )&
	1609	)**2
[108]	1610	ENDIF
	1611	ENDDO
	1612	ELSE
	1613	DO k = nzt, nzb+1, -1
	1614	IF ( zu(k) <= rayleigh_damping_height ) THEN
	1615	rdf(k) = rayleigh_damping_factor * &
	1616	( SIN( pi * 0.5 * ( rayleigh_damping_height - zu(k) ) &
	1617	/ ( rayleigh_damping_height - zu(nzb+1)))&
	1618	)**2
	1619	ENDIF
	1620	ENDDO
	1621	ENDIF
[1]	1622	ENDIF
[785]	1623	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
[1]	1624
	1625	!
[240]	1626	!-- Initialize the starting level and the vertical smoothing factor used for
	1627	!-- the external pressure gradient
	1628	dp_smooth_factor = 1.0
	1629	IF ( dp_external ) THEN
	1630	!
	1631	!-- Set the starting level dp_level_ind_b only if it has not been set before
	1632	!-- (e.g. in init_grid).
	1633	IF ( dp_level_ind_b == 0 ) THEN
	1634	ind_array = MINLOC( ABS( dp_level_b - zu ) )
	1635	dp_level_ind_b = ind_array(1) - 1 + nzb
	1636	! MINLOC uses lower array bound 1
	1637	ENDIF
	1638	IF ( dp_smooth ) THEN
	1639	dp_smooth_factor(:dp_level_ind_b) = 0.0
	1640	DO k = dp_level_ind_b+1, nzt
	1641	dp_smooth_factor(k) = 0.5 * ( 1.0 + SIN( pi * &
	1642	( REAL( k - dp_level_ind_b ) / &
	1643	REAL( nzt - dp_level_ind_b ) - 0.5 ) ) )
	1644	ENDDO
	1645	ENDIF
	1646	ENDIF
	1647
	1648	!
[978]	1649	!-- Initialize damping zone for the potential temperature in case of
	1650	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
	1651	!-- at the inflow boundary and decreases to zero at pt_damping_width.
	1652	ptdf_x = 0.0
	1653	ptdf_y = 0.0
[996]	1654	IF ( bc_lr_dirrad .OR. bc_lr_dirneu ) THEN
	1655	DO i = nxl, nxr
[978]	1656	IF ( ( i * dx ) < pt_damping_width ) THEN
	1657	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5 * &
	1658	REAL( pt_damping_width - i * dx ) / ( &
	1659	REAL( pt_damping_width ) ) ) )**2
[73]	1660	ENDIF
	1661	ENDDO
[996]	1662	ELSEIF ( bc_lr_raddir .OR. bc_lr_neudir ) THEN
	1663	DO i = nxl, nxr
[978]	1664	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
[996]	1665	ptdf_x(i) = pt_damping_factor * &
	1666	SIN( pi * 0.5 * ( ( i - nx ) * dx + pt_damping_width ) / &
	1667	REAL( pt_damping_width ) )**2
[73]	1668	ENDIF
[978]	1669	ENDDO
[996]	1670	ELSEIF ( bc_ns_dirrad .OR. bc_ns_dirneu ) THEN
	1671	DO j = nys, nyn
[978]	1672	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
[996]	1673	ptdf_y(j) = pt_damping_factor * &
	1674	SIN( pi * 0.5 * ( ( j - ny ) * dy + pt_damping_width ) / &
	1675	REAL( pt_damping_width ) )**2
[1]	1676	ENDIF
[978]	1677	ENDDO
[996]	1678	ELSEIF ( bc_ns_raddir .OR. bc_ns_neudir ) THEN
	1679	DO j = nys, nyn
[978]	1680	IF ( ( j * dy ) < pt_damping_width ) THEN
[996]	1681	ptdf_y(j) = pt_damping_factor * &
	1682	SIN( pi * 0.5 * ( pt_damping_width - j * dy ) / &
	1683	REAL( pt_damping_width ) )**2
[1]	1684	ENDIF
[73]	1685	ENDDO
[1]	1686	ENDIF
	1687
	1688	!
[709]	1689	!-- Initialize local summation arrays for routine flow_statistics.
	1690	!-- This is necessary because they may not yet have been initialized when they
	1691	!-- are called from flow_statistics (or - depending on the chosen model run -
	1692	!-- are never initialized)
[1]	1693	sums_divnew_l = 0.0
	1694	sums_divold_l = 0.0
	1695	sums_l_l = 0.0
	1696	sums_up_fraction_l = 0.0
	1697	sums_wsts_bc_l = 0.0
	1698
	1699	!
	1700	!-- Pre-set masks for regional statistics. Default is the total model domain.
[1015]	1701	!-- Ghost points are excluded because counting values at the ghost boundaries
	1702	!-- would bias the statistics
[1]	1703	rmask = 1.0
[1025]	1704	rmask(:,nxlg:nxl-1,:) = 0.0; rmask(:,nxr+1:nxrg,:) = 0.0
	1705	rmask(nysg:nys-1,:,:) = 0.0; rmask(nyn+1:nyng,:,:) = 0.0
[1]	1706
	1707	!
[51]	1708	!-- User-defined initializing actions. Check afterwards, if maximum number
[709]	1709	!-- of allowed timeseries is exceeded
[1]	1710	CALL user_init
	1711
[51]	1712	IF ( dots_num > dots_max ) THEN
[254]	1713	WRITE( message_string, * ) 'number of time series quantities exceeds', &
[274]	1714	' its maximum of dots_max = ', dots_max, &
[254]	1715	' &Please increase dots_max in modules.f90.'
	1716	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
[51]	1717	ENDIF
	1718
[1]	1719	!
	1720	!-- Input binary data file is not needed anymore. This line must be placed
	1721	!-- after call of user_init!
	1722	CALL close_file( 13 )
	1723
	1724	!
	1725	!-- Compute total sum of active mask grid points
	1726	!-- ngp_2dh: number of grid points of a horizontal cross section through the
	1727	!-- total domain
	1728	!-- ngp_3d: number of grid points of the total domain
[132]	1729	ngp_2dh_outer_l = 0
	1730	ngp_2dh_outer = 0
	1731	ngp_2dh_s_inner_l = 0
	1732	ngp_2dh_s_inner = 0
	1733	ngp_2dh_l = 0
	1734	ngp_2dh = 0
[485]	1735	ngp_3d_inner_l = 0.0
[132]	1736	ngp_3d_inner = 0
	1737	ngp_3d = 0
	1738	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
[1]	1739
	1740	DO sr = 0, statistic_regions
	1741	DO i = nxl, nxr
	1742	DO j = nys, nyn
	1743	IF ( rmask(j,i,sr) == 1.0 ) THEN
	1744	!
	1745	!-- All xy-grid points
	1746	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1747	!
	1748	!-- xy-grid points above topography
	1749	DO k = nzb_s_outer(j,i), nz + 1
	1750	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
	1751	ENDDO
[132]	1752	DO k = nzb_s_inner(j,i), nz + 1
	1753	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
	1754	ENDDO
[1]	1755	!
	1756	!-- All grid points of the total domain above topography
	1757	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
	1758	( nz - nzb_s_inner(j,i) + 2 )
	1759	ENDIF
	1760	ENDDO
	1761	ENDDO
	1762	ENDDO
	1763
	1764	sr = statistic_regions + 1
	1765	#if defined( __parallel )
[622]	1766	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1767	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
[1]	1768	comm2d, ierr )
[622]	1769	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1770	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
[1]	1771	MPI_INTEGER, MPI_SUM, comm2d, ierr )
[622]	1772	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1773	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
[132]	1774	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
[622]	1775	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1776	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
[1]	1777	MPI_SUM, comm2d, ierr )
[485]	1778	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
[1]	1779	#else
[132]	1780	ngp_2dh = ngp_2dh_l
	1781	ngp_2dh_outer = ngp_2dh_outer_l
	1782	ngp_2dh_s_inner = ngp_2dh_s_inner_l
[485]	1783	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
[1]	1784	#endif
	1785
[560]	1786	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
	1787	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
[1]	1788
	1789	!
	1790	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
	1791	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
	1792	!-- the respective subdomain lie below the surface topography
[667]	1793	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
[631]	1794	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
	1795	ngp_3d_inner(:) )
[667]	1796	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
[1]	1797
[485]	1798	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, ngp_3d_inner_tmp )
[1]	1799
	1800
	1801	END SUBROUTINE init_3d_model

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