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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1160

Last change on this file since 1160 was 1160, checked in by fricke, 12 years ago
last commit documented
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File size: 64.2 KB

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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	! ------------------
[1054]	25	!
[1154]	26	!
[1054]	27	! Former revisions:
	28	! -----------------
	29	! $Id: init_3d_model.f90 1160 2013-05-21 12:06:24Z fricke $
	30	!
[1160]	31	! 1159 2013-05-21 11:58:22Z fricke
	32	! -bc_lr_dirneu, bc_lr_neudir, bc_ns_dirneu, bc_ns_neudir
	33	!
[1154]	34	! 1153 2013-05-10 14:33:08Z raasch
	35	! diss array is allocated with dummy elements even if it is not needed
	36	! (required by PGI 12.3 / CUDA 5.0)
	37	!
[1116]	38	! 1115 2013-03-26 18:16:16Z hoffmann
	39	! unused variables removed
	40	!
[1114]	41	! 1113 2013-03-10 02:48:14Z raasch
	42	! openACC directive modified
	43	!
[1112]	44	! 1111 2013-03-08 23:54:10Z raasch
	45	! openACC directives added for pres
	46	! array diss allocated only if required
	47	!
[1093]	48	! 1092 2013-02-02 11:24:22Z raasch
	49	! unused variables removed
	50	!
[1066]	51	! 1065 2012-11-22 17:42:36Z hoffmann
	52	! allocation of diss (dissipation rate) in case of turbulence = .TRUE. added
	53	!
[1054]	54	! 1053 2012-11-13 17:11:03Z hoffmann
[1053]	55	! allocation and initialisation of necessary data arrays for the two-moment
	56	! cloud physics scheme the two new prognostic equations (nr, qr):
	57	! +dr, lambda_r, mu_r, sed_, xr, s, sws, swst, , _p, t_m, _1, _2, _3,
	58	! +tend_*, prr
[979]	59	!
[1037]	60	! 1036 2012-10-22 13:43:42Z raasch
	61	! code put under GPL (PALM 3.9)
	62	!
[1033]	63	! 1032 2012-10-21 13:03:21Z letzel
	64	! save memory by not allocating pt_2 in case of neutral = .T.
	65	!
[1026]	66	! 1025 2012-10-07 16:04:41Z letzel
	67	! bugfix: swap indices of mask for ghost boundaries
	68	!
[1017]	69	! 1015 2012-09-27 09:23:24Z raasch
	70	! mask is set to zero for ghost boundaries
	71	!
[1011]	72	! 1010 2012-09-20 07:59:54Z raasch
	73	! cpp switch __nopointer added for pointer free version
	74	!
[1004]	75	! 1003 2012-09-14 14:35:53Z raasch
	76	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
	77	!
[1002]	78	! 1001 2012-09-13 14:08:46Z raasch
	79	! all actions concerning leapfrog scheme removed
	80	!
[997]	81	! 996 2012-09-07 10:41:47Z raasch
	82	! little reformatting
	83	!
[979]	84	! 978 2012-08-09 08:28:32Z fricke
[978]	85	! outflow damping layer removed
	86	! roughness length for scalar quantites z0h added
	87	! damping zone for the potential temperatur in case of non-cyclic lateral
	88	! boundaries added
	89	! initialization of ptdf_x, ptdf_y
	90	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
[708]	91	!
[850]	92	! 849 2012-03-15 10:35:09Z raasch
	93	! init_particles renamed lpm_init
	94	!
[826]	95	! 825 2012-02-19 03:03:44Z raasch
	96	! wang_collision_kernel renamed wang_kernel
	97	!
[791]	98	! 790 2011-11-29 03:11:20Z raasch
	99	! diss is also allocated in case that the Wang kernel is used
	100	!
[788]	101	! 787 2011-11-28 12:49:05Z heinze $
	102	! bugfix: call init_advec in every case - not only for inital runs
	103	!
[786]	104	! 785 2011-11-28 09:47:19Z raasch
	105	! initialization of rdf_sc
	106	!
[768]	107	! 767 2011-10-14 06:39:12Z raasch
	108	! adjustments concerning implementation of prescribed u,v-profiles
	109	! bugfix: dirichlet_0 conditions for ug/vg moved to check_parameters
	110	!
[760]	111	! 759 2011-09-15 13:58:31Z raasch
	112	! Splitting of parallel I/O in blocks of PEs
	113	! Bugfix: No zero assignments to volume_flow_initial and volume_flow_area in
	114	! case of normal restart runs.
	115	!
[714]	116	! 713 2011-03-30 14:21:21Z suehring
[732]	117	! weight_substep and weight_pres are given as fractions.
[714]	118	!
[710]	119	! 709 2011-03-30 09:31:40Z raasch
	120	! formatting adjustments
	121	!
[708]	122	! 707 2011-03-29 11:39:40Z raasch
[707]	123	! p_sub renamed p_loc and allocated depending on the chosen pressure solver,
	124	! initial assignments of zero to array p for iterative solvers only,
	125	! bc_lr/ns replaced by bc_lr/ns_dirrad/raddir
[674]	126	!
[708]	127	! 680 2011-02-04 23:16:06Z gryschka
[681]	128	! bugfix: volume_flow_control
[668]	129	!
[674]	130	! 673 2011-01-18 16:19:48Z suehring
	131	! weight_substep (moved from advec_ws) and weight_pres added.
	132	! Allocate p_sub when using Multigrid or SOR solver.
	133	! Call of ws_init moved behind the if requests.
	134	!
[668]	135	! 667 2010-12-23 12:06:00Z suehring/gryschka
[667]	136	! nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng in loops and
	137	! allocation of arrays. Calls of exchange_horiz are modified.
[709]	138	! Call ws_init to initialize arrays needed for calculating statisticas and for
[667]	139	! optimization when ws-scheme is used.
	140	! Initial volume flow is now calculated by using the variable hom_sum.
	141	! Therefore the correction of initial volume flow for non-flat topography
	142	! removed (removed u_nzb_p1_for_vfc and v_nzb_p1_for_vfc)
	143	! Changed surface boundary conditions for u and v in case of ibc_uv_b == 0 from
[709]	144	! mirror to Dirichlet boundary conditions (u=v=0), so that k=nzb is
	145	! representative for the height z0.
[667]	146	! Bugfix: type conversion of '1' to 64bit for the MAX function (ngp_3d_inner)
	147	!
[623]	148	! 622 2010-12-10 08:08:13Z raasch
	149	! optional barriers included in order to speed up collective operations
	150	!
[561]	151	! 560 2010-09-09 10:06:09Z weinreis
	152	! bugfix: correction of calculating ngp_3d for 64 bit
	153	!
[486]	154	! 485 2010-02-05 10:57:51Z raasch
	155	! calculation of ngp_3d + ngp_3d_inner changed because they have now 64 bit
	156	!
[482]	157	! 407 2009-12-01 15:01:15Z maronga
	158	! var_ts is replaced by dots_max
	159	! Enabled passive scalar/humidity wall fluxes for non-flat topography
	160	!
[392]	161	! 388 2009-09-23 09:40:33Z raasch
[388]	162	! Initialization of prho added.
[359]	163	! bugfix: correction of initial volume flow for non-flat topography
	164	! bugfix: zero initialization of arrays within buildings for 'cyclic_fill'
[333]	165	! bugfix: avoid that ngp_2dh_s_inner becomes zero
[328]	166	! initializing_actions='read_data_for_recycling' renamed to 'cyclic_fill', now
	167	! independent of turbulent_inflow
[254]	168	! Output of messages replaced by message handling routine.
[240]	169	! Set the starting level and the vertical smoothing factor used for
	170	! the external pressure gradient
[254]	171	! +conserve_volume_flow_mode: 'default', 'initial_profiles', 'inflow_profile'
[241]	172	! and 'bulk_velocity'
[292]	173	! If the inversion height calculated by the prerun is zero,
	174	! inflow_damping_height must be explicitly specified.
[139]	175	!
[198]	176	! 181 2008-07-30 07:07:47Z raasch
	177	! bugfix: zero assignments to tendency arrays in case of restarts,
	178	! further extensions and modifications in the initialisation of the plant
	179	! canopy model,
	180	! allocation of hom_sum moved to parin, initialization of spectrum_x\|y directly
	181	! after allocating theses arrays,
	182	! read data for recycling added as new initialization option,
	183	! dummy allocation for diss
	184	!
[139]	185	! 138 2007-11-28 10:03:58Z letzel
[132]	186	! New counter ngp_2dh_s_inner.
	187	! Allow new case bc_uv_t = 'dirichlet_0' for channel flow.
	188	! Corrected calculation of initial volume flow for 'set_1d-model_profiles' and
	189	! 'set_constant_profiles' in case of buildings in the reference cross-sections.
[77]	190	!
[110]	191	! 108 2007-08-24 15:10:38Z letzel
	192	! Flux initialization in case of coupled runs, +momentum fluxes at top boundary,
	193	! +arrays for phase speed c_u, c_v, c_w, indices for u\|v\|w_m_l\|r changed
	194	! +qswst_remote in case of atmosphere model with humidity coupled to ocean
	195	! Rayleigh damping for ocean, optionally calculate km and kh from initial
	196	! TKE e_init
	197	!
[98]	198	! 97 2007-06-21 08:23:15Z raasch
	199	! Initialization of salinity, call of init_ocean
	200	!
[90]	201	! 87 2007-05-22 15:46:47Z raasch
	202	! var_hom and var_sum renamed pr_palm
	203	!
[77]	204	! 75 2007-03-22 09:54:05Z raasch
[73]	205	! Arrays for radiation boundary conditions are allocated (u_m_l, u_m_r, etc.),
	206	! bugfix for cases with the outflow damping layer extending over more than one
[75]	207	! subdomain, moisture renamed humidity,
	208	! new initializing action "by_user" calls user_init_3d_model,
[72]	209	! precipitation_amount/rate, ts_value are allocated, +module netcdf_control,
[51]	210	! initial velocities at nzb+1 are regarded for volume
	211	! flow control in case they have been set zero before (to avoid small timesteps)
[75]	212	! -uvmean_outflow, uxrp, vynp eliminated
[1]	213	!
[39]	214	! 19 2007-02-23 04:53:48Z raasch
	215	! +handling of top fluxes
	216	!
[3]	217	! RCS Log replace by Id keyword, revision history cleaned up
	218	!
[1]	219	! Revision 1.49 2006/08/22 15:59:07 raasch
	220	! No optimization of this file on the ibmy (Yonsei Univ.)
	221	!
	222	! Revision 1.1 1998/03/09 16:22:22 raasch
	223	! Initial revision
	224	!
	225	!
	226	! Description:
	227	! ------------
	228	! Allocation of arrays and initialization of the 3D model via
	229	! a) pre-run the 1D model
	230	! or
	231	! b) pre-set constant linear profiles
	232	! or
	233	! c) read values of a previous run
	234	!------------------------------------------------------------------------------!
	235
[667]	236	USE advec_ws
[1]	237	USE arrays_3d
	238	USE averaging
[72]	239	USE cloud_parameters
[1]	240	USE constants
	241	USE control_parameters
	242	USE cpulog
[978]	243	USE grid_variables
[1]	244	USE indices
	245	USE interfaces
	246	USE model_1d
[51]	247	USE netcdf_control
[1]	248	USE particle_attributes
	249	USE pegrid
	250	USE profil_parameter
	251	USE random_function_mod
	252	USE statistics
[1111]	253	USE transpose_indices
[1]	254
	255	IMPLICIT NONE
	256
[559]	257	INTEGER :: i, ind_array(1), j, k, sr
[1]	258
[485]	259	INTEGER, DIMENSION(:), ALLOCATABLE :: ngp_2dh_l
[1]	260
[132]	261	INTEGER, DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l, &
[996]	262	ngp_2dh_s_inner_l
[1]	263
	264	REAL, DIMENSION(1:2) :: volume_flow_area_l, volume_flow_initial_l
	265
[485]	266	REAL, DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l, ngp_3d_inner_tmp
[1]	267
[485]	268
[1]	269	!
	270	!-- Allocate arrays
	271	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
	272	ngp_3d(0:statistic_regions), &
	273	ngp_3d_inner(0:statistic_regions), &
	274	ngp_3d_inner_l(0:statistic_regions), &
[485]	275	ngp_3d_inner_tmp(0:statistic_regions), &
[1]	276	sums_divnew_l(0:statistic_regions), &
	277	sums_divold_l(0:statistic_regions) )
[785]	278	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
[143]	279	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
[1]	280	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
[132]	281	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
	282	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
[996]	283	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
[87]	284	sums(nzb:nzt+1,pr_palm+max_pr_user), &
	285	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
[1]	286	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
	287	sums_up_fraction_l(10,3,0:statistic_regions), &
[48]	288	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
[394]	289	ts_value(dots_max,0:statistic_regions) )
[978]	290	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
[1]	291
[1001]	292	ALLOCATE( rif(nysg:nyng,nxlg:nxrg), shf(nysg:nyng,nxlg:nxrg), &
	293	ts(nysg:nyng,nxlg:nxrg), tswst(nysg:nyng,nxlg:nxrg), &
	294	us(nysg:nyng,nxlg:nxrg), usws(nysg:nyng,nxlg:nxrg), &
	295	uswst(nysg:nyng,nxlg:nxrg), vsws(nysg:nyng,nxlg:nxrg), &
	296	vswst(nysg:nyng,nxlg:nxrg), z0(nysg:nyng,nxlg:nxrg), &
[978]	297	z0h(nysg:nyng,nxlg:nxrg) )
[1]	298
[1010]	299	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
	300	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	301	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	302	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	303	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	304
	305	#if defined( __nopointer )
	306	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	307	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	308	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	309	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	310	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	311	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	312	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	313	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	314	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	315	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	316	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	317	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	318	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	319	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	320	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	321	#else
	322	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	323	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	324	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	325	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	326	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	327	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	328	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	329	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	330	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	331	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	332	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	333	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	334	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	335	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1032]	336	IF ( .NOT. neutral ) THEN
	337	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	338	ENDIF
[1010]	339	#endif
	340
[673]	341	!
[707]	342	!-- Following array is required for perturbation pressure within the iterative
	343	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
	344	!-- the weighted average of the substeps and cannot be used in the Poisson
	345	!-- solver.
	346	IF ( psolver == 'sor' ) THEN
	347	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	348	ELSEIF ( psolver == 'multigrid' ) THEN
	349	!
	350	!-- For performance reasons, multigrid is using one ghost layer only
	351	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[673]	352	ENDIF
[1]	353
[1111]	354	!
	355	!-- Array for storing constant coeffficients of the tridiagonal solver
	356	IF ( psolver == 'poisfft' ) THEN
	357	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
	358	ENDIF
	359
[75]	360	IF ( humidity .OR. passive_scalar ) THEN
[1]	361	!
[75]	362	!-- 2D-humidity/scalar arrays
[1001]	363	ALLOCATE ( qs(nysg:nyng,nxlg:nxrg), &
	364	qsws(nysg:nyng,nxlg:nxrg), &
	365	qswst(nysg:nyng,nxlg:nxrg) )
[1]	366
	367	!
[75]	368	!-- 3D-humidity/scalar arrays
[1010]	369	#if defined( __nopointer )
	370	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	371	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	372	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	373	#else
[667]	374	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	375	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	376	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	377	#endif
[1]	378
	379	!
[75]	380	!-- 3D-arrays needed for humidity only
	381	IF ( humidity ) THEN
[1010]	382	#if defined( __nopointer )
	383	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	384	#else
[667]	385	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	386	#endif
[1]	387
	388	IF ( cloud_physics ) THEN
[1053]	389
[1]	390	!
	391	!-- Liquid water content
[1010]	392	#if defined( __nopointer )
	393	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	394	#else
[667]	395	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	396	#endif
[72]	397	!
	398	!-- Precipitation amount and rate (only needed if output is switched)
[667]	399	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
	400	precipitation_rate(nysg:nyng,nxlg:nxrg) )
[1053]	401
	402	IF ( icloud_scheme == 0 ) THEN
	403	!
[1115]	404	!-- 1D-arrays
	405	ALLOCATE ( nc_1d(nzb:nzt+1), pt_1d(nzb:nzt+1), &
	406	q_1d(nzb:nzt+1), qc_1d(nzb:nzt+1) )
[1053]	407	!
[1115]	408	!-- 3D-cloud water content
[1053]	409	#if defined( __nopointer )
[1115]	410	ALLOCATE( qc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1053]	411	#else
[1115]	412	ALLOCATE( qc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1053]	413	#endif
	414	!
	415	!-- 3D-tendency arrays
[1115]	416	ALLOCATE( tend_pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	417	tend_q(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	418
	419	IF ( precipitation ) THEN
[1053]	420	!
[1115]	421	!-- 1D-arrays
	422	ALLOCATE ( nr_1d(nzb:nzt+1), qr_1d(nzb:nzt+1) )
	423	!
	424	!
	425	!-- 3D-tendency arrays
	426	ALLOCATE( tend_nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	427	tend_qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	428	!
	429	!-- 2D-rain water content and rain drop concentration arrays
	430	ALLOCATE ( qrs(nysg:nyng,nxlg:nxrg), &
	431	qrsws(nysg:nyng,nxlg:nxrg), &
	432	qrswst(nysg:nyng,nxlg:nxrg), &
	433	nrs(nysg:nyng,nxlg:nxrg), &
	434	nrsws(nysg:nyng,nxlg:nxrg), &
	435	nrswst(nysg:nyng,nxlg:nxrg) )
	436	!
	437	!-- 3D-rain water content, rain drop concentration arrays
	438	#if defined( __nopointer )
	439	ALLOCATE( nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	440	nr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	441	qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	442	qr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	443	tnr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	444	tqr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	445	#else
	446	ALLOCATE( nr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	447	nr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	448	nr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	449	qr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	450	qr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	451	qr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	452	#endif
	453	!
	454	!-- 3d-precipitation rate
[1053]	455	ALLOCATE( prr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	456	ENDIF
	457
	458	ENDIF
[1]	459	ENDIF
	460
	461	IF ( cloud_droplets ) THEN
	462	!
[1010]	463	!-- Liquid water content, change in liquid water content
	464	#if defined( __nopointer )
	465	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	466	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	467	#else
[667]	468	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1010]	469	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	470	#endif
	471	!
	472	!-- Real volume of particles (with weighting), volume of particles
	473	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	474	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1]	475	ENDIF
	476
	477	ENDIF
	478
	479	ENDIF
	480
[94]	481	IF ( ocean ) THEN
[1001]	482	ALLOCATE( saswsb(nysg:nyng,nxlg:nxrg), &
	483	saswst(nysg:nyng,nxlg:nxrg) )
[1010]	484	#if defined( __nopointer )
	485	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	486	rho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	487	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	488	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	489	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	490	#else
[667]	491	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	492	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	493	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	494	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	495	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[388]	496	prho => prho_1
	497	rho => rho_1 ! routines calc_mean_profile and diffusion_e require
	498	! density to be apointer
[1010]	499	#endif
[108]	500	IF ( humidity_remote ) THEN
[667]	501	ALLOCATE( qswst_remote(nysg:nyng,nxlg:nxrg))
[108]	502	qswst_remote = 0.0
	503	ENDIF
[94]	504	ENDIF
	505
[1]	506	!
	507	!-- 3D-array for storing the dissipation, needed for calculating the sgs
	508	!-- particle velocities
[1065]	509	IF ( use_sgs_for_particles .OR. wang_kernel .OR. turbulence ) THEN
[1153]	510	ALLOCATE( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	511	ELSE
	512	ALLOCATE( diss(2,2,2) )
[1]	513	ENDIF
	514
	515	IF ( dt_dosp /= 9999999.9 ) THEN
	516	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
	517	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
[146]	518	spectrum_x = 0.0
	519	spectrum_y = 0.0
[1]	520	ENDIF
	521
	522	!
[138]	523	!-- 3D-arrays for the leaf area density and the canopy drag coefficient
	524	IF ( plant_canopy ) THEN
[667]	525	ALLOCATE ( lad_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	526	lad_u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	527	lad_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	528	lad_w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	529	cdc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[153]	530
	531	IF ( passive_scalar ) THEN
[996]	532	ALLOCATE ( sls(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	533	sec(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[153]	534	ENDIF
	535
	536	IF ( cthf /= 0.0 ) THEN
[996]	537	ALLOCATE ( lai(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	538	canopy_heat_flux(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[153]	539	ENDIF
	540
[138]	541	ENDIF
	542
	543	!
[51]	544	!-- 4D-array for storing the Rif-values at vertical walls
	545	IF ( topography /= 'flat' ) THEN
[667]	546	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
[51]	547	rif_wall = 0.0
	548	ENDIF
	549
	550	!
[106]	551	!-- Arrays to store velocity data from t-dt and the phase speeds which
	552	!-- are needed for radiation boundary conditions
[73]	553	IF ( outflow_l ) THEN
[667]	554	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
	555	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
	556	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
[73]	557	ENDIF
	558	IF ( outflow_r ) THEN
[667]	559	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	560	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	561	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
[73]	562	ENDIF
[106]	563	IF ( outflow_l .OR. outflow_r ) THEN
[667]	564	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
	565	c_w(nzb:nzt+1,nysg:nyng) )
[106]	566	ENDIF
[73]	567	IF ( outflow_s ) THEN
[667]	568	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
	569	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
	570	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
[73]	571	ENDIF
	572	IF ( outflow_n ) THEN
[667]	573	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	574	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	575	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
[73]	576	ENDIF
[106]	577	IF ( outflow_s .OR. outflow_n ) THEN
[667]	578	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
	579	c_w(nzb:nzt+1,nxlg:nxrg) )
[106]	580	ENDIF
[996]	581	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
[978]	582	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
	583	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
	584	ENDIF
[73]	585
[978]	586
[1010]	587	#if ! defined( __nopointer )
[73]	588	!
[1]	589	!-- Initial assignment of the pointers
[1001]	590	e => e_1; e_p => e_2; te_m => e_3
[1032]	591	IF ( .NOT. neutral ) THEN
	592	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
	593	ELSE
	594	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
	595	ENDIF
[1001]	596	u => u_1; u_p => u_2; tu_m => u_3
	597	v => v_1; v_p => v_2; tv_m => v_3
	598	w => w_1; w_p => w_2; tw_m => w_3
[1]	599
[1001]	600	IF ( humidity .OR. passive_scalar ) THEN
	601	q => q_1; q_p => q_2; tq_m => q_3
[1053]	602	IF ( humidity ) THEN
	603	vpt => vpt_1
	604	IF ( cloud_physics ) THEN
	605	ql => ql_1
	606	IF ( icloud_scheme == 0 ) THEN
[1115]	607	qc => qc_1
	608	IF ( precipitation ) THEN
	609	qr => qr_1; qr_p => qr_2; tqr_m => qr_3
	610	nr => nr_1; nr_p => nr_2; tnr_m => nr_3
	611	ENDIF
[1053]	612	ENDIF
	613	ENDIF
	614	ENDIF
[1001]	615	IF ( cloud_droplets ) THEN
	616	ql => ql_1
	617	ql_c => ql_2
[1]	618	ENDIF
[1001]	619	ENDIF
[1]	620
[1001]	621	IF ( ocean ) THEN
	622	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
	623	ENDIF
[1010]	624	#endif
[1]	625
	626	!
[709]	627	!-- Allocate arrays containing the RK coefficient for calculation of
	628	!-- perturbation pressure and turbulent fluxes. At this point values are
	629	!-- set for pressure calculation during initialization (where no timestep
	630	!-- is done). Further below the values needed within the timestep scheme
	631	!-- will be set.
	632	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
[673]	633	weight_pres(1:intermediate_timestep_count_max) )
[709]	634	weight_substep = 1.0
	635	weight_pres = 1.0
	636	intermediate_timestep_count = 1 ! needed when simulated_time = 0.0
[673]	637
	638	!
[1]	639	!-- Initialize model variables
[147]	640	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[328]	641	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[1]	642	!
	643	!-- First model run of a possible job queue.
	644	!-- Initial profiles of the variables must be computes.
	645	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
	646	!
	647	!-- Use solutions of the 1D model as initial profiles,
	648	!-- start 1D model
	649	CALL init_1d_model
	650	!
	651	!-- Transfer initial profiles to the arrays of the 3D model
[667]	652	DO i = nxlg, nxrg
	653	DO j = nysg, nyng
[1]	654	e(:,j,i) = e1d
	655	kh(:,j,i) = kh1d
	656	km(:,j,i) = km1d
	657	pt(:,j,i) = pt_init
	658	u(:,j,i) = u1d
	659	v(:,j,i) = v1d
	660	ENDDO
	661	ENDDO
	662
[75]	663	IF ( humidity .OR. passive_scalar ) THEN
[667]	664	DO i = nxlg, nxrg
	665	DO j = nysg, nyng
[1]	666	q(:,j,i) = q_init
	667	ENDDO
	668	ENDDO
[1115]	669	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	670	precipitation ) THEN
[1053]	671	DO i = nxlg, nxrg
	672	DO j = nysg, nyng
[1115]	673	qr(:,j,i) = 0.0
	674	nr(:,j,i) = 0.0
[1053]	675	ENDDO
	676	ENDDO
[1115]	677	!
	678	!-- Initialze nc_1d with default value
	679	nc_1d(:) = nc_const
	680
[1053]	681	ENDIF
[1]	682	ENDIF
	683
	684	IF ( .NOT. constant_diffusion ) THEN
[667]	685	DO i = nxlg, nxrg
	686	DO j = nysg, nyng
[1]	687	e(:,j,i) = e1d
	688	ENDDO
	689	ENDDO
	690	!
	691	!-- Store initial profiles for output purposes etc.
	692	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	693
	694	IF ( prandtl_layer ) THEN
	695	rif = rif1d(nzb+1)
	696	ts = 0.0 ! could actually be computed more accurately in the
	697	! 1D model. Update when opportunity arises.
	698	us = us1d
	699	usws = usws1d
	700	vsws = vsws1d
	701	ELSE
	702	ts = 0.0 ! must be set, because used in
	703	rif = 0.0 ! flowste
	704	us = 0.0
	705	usws = 0.0
	706	vsws = 0.0
	707	ENDIF
	708
	709	ELSE
	710	e = 0.0 ! must be set, because used in
	711	rif = 0.0 ! flowste
	712	ts = 0.0
	713	us = 0.0
	714	usws = 0.0
	715	vsws = 0.0
	716	ENDIF
[102]	717	uswst = top_momentumflux_u
	718	vswst = top_momentumflux_v
[1]	719
	720	!
	721	!-- In every case qs = 0.0 (see also pt)
	722	!-- This could actually be computed more accurately in the 1D model.
	723	!-- Update when opportunity arises!
[1053]	724	IF ( humidity .OR. passive_scalar ) THEN
	725	qs = 0.0
[1115]	726	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	727	precipitation ) THEN
[1053]	728	qrs = 0.0
	729	nrs = 0.0
	730	ENDIF
	731	ENDIF
[1]	732
	733	!
	734	!-- inside buildings set velocities back to zero
	735	IF ( topography /= 'flat' ) THEN
	736	DO i = nxl-1, nxr+1
	737	DO j = nys-1, nyn+1
	738	u(nzb:nzb_u_inner(j,i),j,i) = 0.0
	739	v(nzb:nzb_v_inner(j,i),j,i) = 0.0
	740	ENDDO
	741	ENDDO
[667]	742
[1]	743	!
	744	!-- WARNING: The extra boundary conditions set after running the
	745	!-- ------- 1D model impose an error on the divergence one layer
	746	!-- below the topography; need to correct later
	747	!-- ATTENTION: Provisional correction for Piacsek & Williams
	748	!-- --------- advection scheme: keep u and v zero one layer below
	749	!-- the topography.
[667]	750	IF ( ibc_uv_b == 1 ) THEN
	751	!
[1]	752	!-- Neumann condition
	753	DO i = nxl-1, nxr+1
	754	DO j = nys-1, nyn+1
	755	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
	756	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
	757	ENDDO
	758	ENDDO
	759
	760	ENDIF
	761
	762	ENDIF
	763
	764	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
	765	THEN
	766	!
	767	!-- Use constructed initial profiles (velocity constant with height,
	768	!-- temperature profile with constant gradient)
[667]	769	DO i = nxlg, nxrg
	770	DO j = nysg, nyng
[1]	771	pt(:,j,i) = pt_init
	772	u(:,j,i) = u_init
	773	v(:,j,i) = v_init
	774	ENDDO
	775	ENDDO
[75]	776
[1]	777	!
[292]	778	!-- Set initial horizontal velocities at the lowest computational grid
	779	!-- levels to zero in order to avoid too small time steps caused by the
	780	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
	781	!-- in the limiting formula!). The original values are stored to be later
	782	!-- used for volume flow control.
[667]	783	DO i = nxlg, nxrg
	784	DO j = nysg, nyng
[1]	785	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0
	786	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0
	787	ENDDO
	788	ENDDO
	789
[75]	790	IF ( humidity .OR. passive_scalar ) THEN
[667]	791	DO i = nxlg, nxrg
	792	DO j = nysg, nyng
[1]	793	q(:,j,i) = q_init
	794	ENDDO
	795	ENDDO
[1115]	796	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	797	!
	798	!-- Initialze nc_1d with default value
	799	nc_1d(:) = nc_const
	800
	801	IF ( precipitation ) THEN
	802	DO i = nxlg, nxrg
	803	DO j = nysg, nyng
	804	qr(:,j,i) = 0.0
	805	nr(:,j,i) = 0.0
	806	ENDDO
[1053]	807	ENDDO
[1115]	808	ENDIF
	809
[1053]	810	ENDIF
[1]	811	ENDIF
	812
[94]	813	IF ( ocean ) THEN
[667]	814	DO i = nxlg, nxrg
	815	DO j = nysg, nyng
[94]	816	sa(:,j,i) = sa_init
	817	ENDDO
	818	ENDDO
	819	ENDIF
[1]	820
	821	IF ( constant_diffusion ) THEN
	822	km = km_constant
	823	kh = km / prandtl_number
[108]	824	e = 0.0
	825	ELSEIF ( e_init > 0.0 ) THEN
	826	DO k = nzb+1, nzt
	827	km(k,:,:) = 0.1 * l_grid(k) * SQRT( e_init )
	828	ENDDO
	829	km(nzb,:,:) = km(nzb+1,:,:)
	830	km(nzt+1,:,:) = km(nzt,:,:)
	831	kh = km / prandtl_number
	832	e = e_init
[1]	833	ELSE
[108]	834	IF ( .NOT. ocean ) THEN
	835	kh = 0.01 ! there must exist an initial diffusion, because
	836	km = 0.01 ! otherwise no TKE would be produced by the
	837	! production terms, as long as not yet
	838	! e = (u/cm)*2 at k=nzb+1
	839	ELSE
	840	kh = 0.00001
	841	km = 0.00001
	842	ENDIF
	843	e = 0.0
[1]	844	ENDIF
[102]	845	rif = 0.0
	846	ts = 0.0
	847	us = 0.0
	848	usws = 0.0
	849	uswst = top_momentumflux_u
	850	vsws = 0.0
	851	vswst = top_momentumflux_v
[75]	852	IF ( humidity .OR. passive_scalar ) qs = 0.0
[1]	853
	854	!
	855	!-- Compute initial temperature field and other constants used in case
	856	!-- of a sloping surface
	857	IF ( sloping_surface ) CALL init_slope
	858
[46]	859	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
	860	THEN
	861	!
	862	!-- Initialization will completely be done by the user
	863	CALL user_init_3d_model
	864
[1]	865	ENDIF
[667]	866	!
	867	!-- Bottom boundary
	868	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
	869	u(nzb,:,:) = 0.0
	870	v(nzb,:,:) = 0.0
	871	ENDIF
[1]	872
	873	!
[151]	874	!-- Apply channel flow boundary condition
[132]	875	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
	876	u(nzt+1,:,:) = 0.0
	877	v(nzt+1,:,:) = 0.0
	878	ENDIF
	879
	880	!
[1]	881	!-- Calculate virtual potential temperature
[75]	882	IF ( humidity ) vpt = pt * ( 1.0 + 0.61 * q )
[1]	883
	884	!
	885	!-- Store initial profiles for output purposes etc.
	886	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	887	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
[667]	888	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
	889	hom(nzb,1,5,:) = 0.0
	890	hom(nzb,1,6,:) = 0.0
[1]	891	ENDIF
	892	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	893	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
	894	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
	895
[97]	896	IF ( ocean ) THEN
	897	!
	898	!-- Store initial salinity profile
	899	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
	900	ENDIF
[1]	901
[75]	902	IF ( humidity ) THEN
[1]	903	!
	904	!-- Store initial profile of total water content, virtual potential
	905	!-- temperature
	906	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	907	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
	908	IF ( cloud_physics .OR. cloud_droplets ) THEN
	909	!
	910	!-- Store initial profile of specific humidity and potential
	911	!-- temperature
	912	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	913	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	914	ENDIF
	915	ENDIF
	916
	917	IF ( passive_scalar ) THEN
	918	!
	919	!-- Store initial scalar profile
	920	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	921	ENDIF
	922
	923	!
[19]	924	!-- Initialize fluxes at bottom surface
[1]	925	IF ( use_surface_fluxes ) THEN
	926
	927	IF ( constant_heatflux ) THEN
	928	!
	929	!-- Heat flux is prescribed
	930	IF ( random_heatflux ) THEN
	931	CALL disturb_heatflux
	932	ELSE
	933	shf = surface_heatflux
	934	!
	935	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
	936	IF ( TRIM( topography ) /= 'flat' ) THEN
[667]	937	DO i = nxlg, nxrg
	938	DO j = nysg, nyng
[1]	939	IF ( nzb_s_inner(j,i) /= 0 ) THEN
	940	shf(j,i) = wall_heatflux(0)
	941	ENDIF
	942	ENDDO
	943	ENDDO
	944	ENDIF
	945	ENDIF
	946	ENDIF
	947
	948	!
	949	!-- Determine the near-surface water flux
[75]	950	IF ( humidity .OR. passive_scalar ) THEN
[1115]	951	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	952	precipitation ) THEN
	953	qrsws = 0.0
	954	nrsws = 0.0
[1053]	955	ENDIF
[1]	956	IF ( constant_waterflux ) THEN
	957	qsws = surface_waterflux
[407]	958	!
	959	!-- Over topography surface_waterflux is replaced by
	960	!-- wall_humidityflux(0)
	961	IF ( TRIM( topography ) /= 'flat' ) THEN
	962	wall_qflux = wall_humidityflux
[667]	963	DO i = nxlg, nxrg
	964	DO j = nysg, nyng
[407]	965	IF ( nzb_s_inner(j,i) /= 0 ) THEN
	966	qsws(j,i) = wall_qflux(0)
	967	ENDIF
	968	ENDDO
	969	ENDDO
	970	ENDIF
[1]	971	ENDIF
	972	ENDIF
	973
	974	ENDIF
	975
	976	!
[19]	977	!-- Initialize fluxes at top surface
[94]	978	!-- Currently, only the heatflux and salinity flux can be prescribed.
	979	!-- The latent flux is zero in this case!
[19]	980	IF ( use_top_fluxes ) THEN
	981
	982	IF ( constant_top_heatflux ) THEN
	983	!
	984	!-- Heat flux is prescribed
	985	tswst = top_heatflux
	986
[1053]	987	IF ( humidity .OR. passive_scalar ) THEN
	988	qswst = 0.0
[1115]	989	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	990	precipitation ) THEN
[1053]	991	nrswst = 0.0
	992	qrswst = 0.0
	993	ENDIF
	994	ENDIF
[94]	995
	996	IF ( ocean ) THEN
[95]	997	saswsb = bottom_salinityflux
[94]	998	saswst = top_salinityflux
	999	ENDIF
[102]	1000	ENDIF
[19]	1001
[102]	1002	!
	1003	!-- Initialization in case of a coupled model run
	1004	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
	1005	tswst = 0.0
	1006	ENDIF
	1007
[19]	1008	ENDIF
	1009
	1010	!
[1]	1011	!-- Initialize Prandtl layer quantities
	1012	IF ( prandtl_layer ) THEN
	1013
	1014	z0 = roughness_length
[978]	1015	z0h = z0h_factor * z0
[1]	1016
	1017	IF ( .NOT. constant_heatflux ) THEN
	1018	!
	1019	!-- Surface temperature is prescribed. Here the heat flux cannot be
	1020	!-- simply estimated, because therefore rif, u* and theta* would have
	1021	!-- to be computed by iteration. This is why the heat flux is assumed
	1022	!-- to be zero before the first time step. It approaches its correct
	1023	!-- value in the course of the first few time steps.
	1024	shf = 0.0
	1025	ENDIF
	1026
[75]	1027	IF ( humidity .OR. passive_scalar ) THEN
[1001]	1028	IF ( .NOT. constant_waterflux ) qsws = 0.0
[1115]	1029	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1030	precipitation ) THEN
	1031	qrsws = 0.0
	1032	nrsws = 0.0
[1053]	1033	ENDIF
[1]	1034	ENDIF
	1035
	1036	ENDIF
	1037
[152]	1038
	1039	!
[707]	1040	!-- For the moment, vertical velocity is zero
	1041	w = 0.0
[1]	1042
	1043	!
	1044	!-- Initialize array sums (must be defined in first call of pres)
	1045	sums = 0.0
	1046
	1047	!
[707]	1048	!-- In case of iterative solvers, p must get an initial value
	1049	IF ( psolver == 'multigrid' .OR. psolver == 'sor' ) p = 0.0
	1050
	1051	!
[72]	1052	!-- Treating cloud physics, liquid water content and precipitation amount
	1053	!-- are zero at beginning of the simulation
	1054	IF ( cloud_physics ) THEN
	1055	ql = 0.0
	1056	IF ( precipitation ) precipitation_amount = 0.0
[1115]	1057	IF ( icloud_scheme == 0 ) THEN
	1058	qc = 0.0
	1059	nc_1d = nc_const
	1060	ENDIF
[72]	1061	ENDIF
[673]	1062	!
[1]	1063	!-- Impose vortex with vertical axis on the initial velocity profile
	1064	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	1065	CALL init_rankine
	1066	ENDIF
	1067
	1068	!
	1069	!-- Impose temperature anomaly (advection test only)
	1070	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
	1071	CALL init_pt_anomaly
	1072	ENDIF
	1073
	1074	!
	1075	!-- If required, change the surface temperature at the start of the 3D run
	1076	IF ( pt_surface_initial_change /= 0.0 ) THEN
	1077	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	1078	ENDIF
	1079
	1080	!
	1081	!-- If required, change the surface humidity/scalar at the start of the 3D
	1082	!-- run
[75]	1083	IF ( ( humidity .OR. passive_scalar ) .AND. &
[1]	1084	q_surface_initial_change /= 0.0 ) THEN
	1085	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
	1086	ENDIF
	1087	!
	1088	!-- Initialize the random number generator (from numerical recipes)
	1089	CALL random_function_ini
	1090
	1091	!
	1092	!-- Initialize old and new time levels.
[1001]	1093	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
[1]	1094	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
	1095
[75]	1096	IF ( humidity .OR. passive_scalar ) THEN
[1001]	1097	tq_m = 0.0
[1]	1098	q_p = q
[1115]	1099	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1100	precipitation ) THEN
[1053]	1101	tqr_m = 0.0
	1102	qr_p = qr
	1103	tnr_m = 0.0
	1104	nr_p = nr
	1105	ENDIF
[1]	1106	ENDIF
	1107
[94]	1108	IF ( ocean ) THEN
	1109	tsa_m = 0.0
	1110	sa_p = sa
	1111	ENDIF
[667]	1112
[94]	1113
[147]	1114	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
[667]	1115	TRIM( initializing_actions ) == 'cyclic_fill' ) &
[1]	1116	THEN
	1117	!
[767]	1118	!-- When reading data for cyclic fill of 3D prerun data files, read
	1119	!-- some of the global variables from the restart file which are required
	1120	!-- for initializing the inflow
[328]	1121	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[559]	1122
[759]	1123	DO i = 0, io_blocks-1
	1124	IF ( i == io_group ) THEN
	1125	CALL read_parts_of_var_list
	1126	CALL close_file( 13 )
	1127	ENDIF
	1128	#if defined( __parallel )
	1129	CALL MPI_BARRIER( comm2d, ierr )
	1130	#endif
	1131	ENDDO
[328]	1132
[767]	1133	ENDIF
	1134
[151]	1135	!
[767]	1136	!-- Read binary data from restart file
	1137	DO i = 0, io_blocks-1
	1138	IF ( i == io_group ) THEN
	1139	CALL read_3d_binary
	1140	ENDIF
	1141	#if defined( __parallel )
	1142	CALL MPI_BARRIER( comm2d, ierr )
	1143	#endif
	1144	ENDDO
	1145
[328]	1146	!
[767]	1147	!-- Initialization of the turbulence recycling method
	1148	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
	1149	turbulent_inflow ) THEN
	1150	!
	1151	!-- First store the profiles to be used at the inflow.
	1152	!-- These profiles are the (temporally) and horizontally averaged vertical
	1153	!-- profiles from the prerun. Alternatively, prescribed profiles
	1154	!-- for u,v-components can be used.
	1155	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,5) )
[151]	1156
[767]	1157	IF ( use_prescribed_profile_data ) THEN
	1158	mean_inflow_profiles(:,1) = u_init ! u
	1159	mean_inflow_profiles(:,2) = v_init ! v
	1160	ELSE
[328]	1161	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
	1162	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
[767]	1163	ENDIF
	1164	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
	1165	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
[151]	1166
	1167	!
[767]	1168	!-- If necessary, adjust the horizontal flow field to the prescribed
	1169	!-- profiles
	1170	IF ( use_prescribed_profile_data ) THEN
	1171	DO i = nxlg, nxrg
[667]	1172	DO j = nysg, nyng
[328]	1173	DO k = nzb, nzt+1
[767]	1174	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
	1175	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
[328]	1176	ENDDO
[151]	1177	ENDDO
[767]	1178	ENDDO
	1179	ENDIF
[151]	1180
	1181	!
[767]	1182	!-- Use these mean profiles at the inflow (provided that Dirichlet
	1183	!-- conditions are used)
	1184	IF ( inflow_l ) THEN
	1185	DO j = nysg, nyng
	1186	DO k = nzb, nzt+1
	1187	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
	1188	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
	1189	w(k,j,nxlg:-1) = 0.0
	1190	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
	1191	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
	1192	ENDDO
	1193	ENDDO
	1194	ENDIF
	1195
[151]	1196	!
[767]	1197	!-- Calculate the damping factors to be used at the inflow. For a
	1198	!-- turbulent inflow the turbulent fluctuations have to be limited
	1199	!-- vertically because otherwise the turbulent inflow layer will grow
	1200	!-- in time.
	1201	IF ( inflow_damping_height == 9999999.9 ) THEN
	1202	!
	1203	!-- Default: use the inversion height calculated by the prerun; if
	1204	!-- this is zero, inflow_damping_height must be explicitly
	1205	!-- specified.
	1206	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0 ) THEN
	1207	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
	1208	ELSE
	1209	WRITE( message_string, * ) 'inflow_damping_height must be ',&
	1210	'explicitly specified because&the inversion height ', &
	1211	'calculated by the prerun is zero.'
	1212	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
[292]	1213	ENDIF
[151]	1214
[767]	1215	ENDIF
	1216
	1217	IF ( inflow_damping_width == 9999999.9 ) THEN
[151]	1218	!
[767]	1219	!-- Default for the transition range: one tenth of the undamped
	1220	!-- layer
	1221	inflow_damping_width = 0.1 * inflow_damping_height
[151]	1222
[767]	1223	ENDIF
[151]	1224
[767]	1225	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
[151]	1226
[767]	1227	DO k = nzb, nzt+1
[151]	1228
[767]	1229	IF ( zu(k) <= inflow_damping_height ) THEN
	1230	inflow_damping_factor(k) = 1.0
[996]	1231	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
	1232	inflow_damping_factor(k) = 1.0 - &
	1233	( zu(k) - inflow_damping_height ) / &
	1234	inflow_damping_width
[767]	1235	ELSE
	1236	inflow_damping_factor(k) = 0.0
	1237	ENDIF
[151]	1238
[767]	1239	ENDDO
[151]	1240
[147]	1241	ENDIF
	1242
[152]	1243	!
[359]	1244	!-- Inside buildings set velocities and TKE back to zero
	1245	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
	1246	topography /= 'flat' ) THEN
	1247	!
	1248	!-- Inside buildings set velocities and TKE back to zero.
	1249	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
	1250	!-- maybe revise later.
[1001]	1251	DO i = nxlg, nxrg
	1252	DO j = nysg, nyng
	1253	u (nzb:nzb_u_inner(j,i),j,i) = 0.0
	1254	v (nzb:nzb_v_inner(j,i),j,i) = 0.0
	1255	w (nzb:nzb_w_inner(j,i),j,i) = 0.0
	1256	e (nzb:nzb_w_inner(j,i),j,i) = 0.0
	1257	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0
	1258	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0
	1259	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
	1260	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
	1261	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
[359]	1262	ENDDO
[1001]	1263	ENDDO
[359]	1264
	1265	ENDIF
	1266
	1267	!
[1]	1268	!-- Calculate initial temperature field and other constants used in case
	1269	!-- of a sloping surface
	1270	IF ( sloping_surface ) CALL init_slope
	1271
	1272	!
	1273	!-- Initialize new time levels (only done in order to set boundary values
	1274	!-- including ghost points)
	1275	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
[1053]	1276	IF ( humidity .OR. passive_scalar ) THEN
	1277	q_p = q
[1115]	1278	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1279	precipitation ) THEN
[1053]	1280	qr_p = qr
	1281	nr_p = nr
	1282	ENDIF
	1283	ENDIF
[94]	1284	IF ( ocean ) sa_p = sa
[1]	1285
[181]	1286	!
	1287	!-- Allthough tendency arrays are set in prognostic_equations, they have
	1288	!-- have to be predefined here because they are used (but multiplied with 0)
	1289	!-- there before they are set.
[1001]	1290	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
[1053]	1291	IF ( humidity .OR. passive_scalar ) THEN
	1292	tq_m = 0.0
[1115]	1293	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1294	precipitation ) THEN
[1053]	1295	tqr_m = 0.0
	1296	tnr_m = 0.0
	1297	ENDIF
	1298	ENDIF
[1001]	1299	IF ( ocean ) tsa_m = 0.0
[181]	1300
[1]	1301	ELSE
	1302	!
	1303	!-- Actually this part of the programm should not be reached
[254]	1304	message_string = 'unknown initializing problem'
	1305	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
[1]	1306	ENDIF
	1307
[151]	1308
	1309	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
[1]	1310	!
[151]	1311	!-- Initialize old timelevels needed for radiation boundary conditions
	1312	IF ( outflow_l ) THEN
	1313	u_m_l(:,:,:) = u(:,:,1:2)
	1314	v_m_l(:,:,:) = v(:,:,0:1)
	1315	w_m_l(:,:,:) = w(:,:,0:1)
	1316	ENDIF
	1317	IF ( outflow_r ) THEN
	1318	u_m_r(:,:,:) = u(:,:,nx-1:nx)
	1319	v_m_r(:,:,:) = v(:,:,nx-1:nx)
	1320	w_m_r(:,:,:) = w(:,:,nx-1:nx)
	1321	ENDIF
	1322	IF ( outflow_s ) THEN
	1323	u_m_s(:,:,:) = u(:,0:1,:)
	1324	v_m_s(:,:,:) = v(:,1:2,:)
	1325	w_m_s(:,:,:) = w(:,0:1,:)
	1326	ENDIF
	1327	IF ( outflow_n ) THEN
	1328	u_m_n(:,:,:) = u(:,ny-1:ny,:)
	1329	v_m_n(:,:,:) = v(:,ny-1:ny,:)
	1330	w_m_n(:,:,:) = w(:,ny-1:ny,:)
	1331	ENDIF
[667]	1332
[151]	1333	ENDIF
[680]	1334
[667]	1335	!
	1336	!-- Calculate the initial volume flow at the right and north boundary
[709]	1337	IF ( conserve_volume_flow ) THEN
[151]	1338
[767]	1339	IF ( use_prescribed_profile_data ) THEN
[667]	1340
[732]	1341	volume_flow_initial_l = 0.0
	1342	volume_flow_area_l = 0.0
	1343
[667]	1344	IF ( nxr == nx ) THEN
	1345	DO j = nys, nyn
[709]	1346	DO k = nzb_2d(j,nx)+1, nzt
[667]	1347	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[767]	1348	u_init(k) * dzw(k)
	1349	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1350	ENDDO
	1351	ENDDO
	1352	ENDIF
	1353
	1354	IF ( nyn == ny ) THEN
	1355	DO i = nxl, nxr
	1356	DO k = nzb_2d(ny,i)+1, nzt
	1357	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1358	v_init(k) * dzw(k)
	1359	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1360	ENDDO
	1361	ENDDO
	1362	ENDIF
	1363
	1364	#if defined( __parallel )
	1365	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1366	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1367	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1368	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1369
	1370	#else
	1371	volume_flow_initial = volume_flow_initial_l
	1372	volume_flow_area = volume_flow_area_l
	1373	#endif
	1374
	1375	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1376
	1377	volume_flow_initial_l = 0.0
	1378	volume_flow_area_l = 0.0
	1379
	1380	IF ( nxr == nx ) THEN
	1381	DO j = nys, nyn
	1382	DO k = nzb_2d(j,nx)+1, nzt
	1383	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[667]	1384	hom_sum(k,1,0) * dzw(k)
	1385	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1386	ENDDO
	1387	ENDDO
	1388	ENDIF
	1389
	1390	IF ( nyn == ny ) THEN
	1391	DO i = nxl, nxr
[709]	1392	DO k = nzb_2d(ny,i)+1, nzt
[667]	1393	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
[709]	1394	hom_sum(k,2,0) * dzw(k)
[667]	1395	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1396	ENDDO
	1397	ENDDO
	1398	ENDIF
	1399
[732]	1400	#if defined( __parallel )
	1401	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1402	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1403	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1404	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1405
	1406	#else
	1407	volume_flow_initial = volume_flow_initial_l
	1408	volume_flow_area = volume_flow_area_l
	1409	#endif
	1410
[667]	1411	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	1412
[732]	1413	volume_flow_initial_l = 0.0
	1414	volume_flow_area_l = 0.0
	1415
[667]	1416	IF ( nxr == nx ) THEN
	1417	DO j = nys, nyn
[709]	1418	DO k = nzb_2d(j,nx)+1, nzt
[667]	1419	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[709]	1420	u(k,j,nx) * dzw(k)
[667]	1421	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1422	ENDDO
	1423	ENDDO
	1424	ENDIF
	1425
	1426	IF ( nyn == ny ) THEN
	1427	DO i = nxl, nxr
[709]	1428	DO k = nzb_2d(ny,i)+1, nzt
[667]	1429	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1430	v(k,ny,i) * dzw(k)
	1431	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1432	ENDDO
	1433	ENDDO
	1434	ENDIF
	1435
	1436	#if defined( __parallel )
[732]	1437	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1438	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1439	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1440	2, MPI_REAL, MPI_SUM, comm2d, ierr )
[667]	1441
	1442	#else
[732]	1443	volume_flow_initial = volume_flow_initial_l
	1444	volume_flow_area = volume_flow_area_l
[667]	1445	#endif
	1446
[732]	1447	ENDIF
	1448
[151]	1449	!
[709]	1450	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
	1451	!-- from u\|v_bulk instead
[680]	1452	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
	1453	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
	1454	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
	1455	ENDIF
[667]	1456
[680]	1457	ENDIF
	1458
[787]	1459	!
	1460	!-- Initialize quantities for special advections schemes
	1461	CALL init_advec
[680]	1462
[667]	1463	!
[680]	1464	!-- Impose random perturbation on the horizontal velocity field and then
	1465	!-- remove the divergences from the velocity field at the initial stage
	1466	IF ( create_disturbances .AND. &
	1467	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
	1468	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
	1469
	1470	CALL disturb_field( nzb_u_inner, tend, u )
	1471	CALL disturb_field( nzb_v_inner, tend, v )
	1472	n_sor = nsor_ini
[1113]	1473	!$acc data copy( d, ddzu, ddzw, nzb_s_inner, nzb_u_inner, nzb_v_inner, nzb_w_inner, p, tric, u, v, w, weight_pres, weight_substep, tend )
[680]	1474	CALL pres
[1111]	1475	!$acc end data
[680]	1476	n_sor = nsor
	1477	ENDIF
	1478
	1479	!
[138]	1480	!-- Initialization of the leaf area density
[709]	1481	IF ( plant_canopy ) THEN
[138]	1482
	1483	SELECT CASE ( TRIM( canopy_mode ) )
	1484
	1485	CASE( 'block' )
	1486
[667]	1487	DO i = nxlg, nxrg
	1488	DO j = nysg, nyng
[138]	1489	lad_s(:,j,i) = lad(:)
	1490	cdc(:,j,i) = drag_coefficient
[709]	1491	IF ( passive_scalar ) THEN
[153]	1492	sls(:,j,i) = leaf_surface_concentration
	1493	sec(:,j,i) = scalar_exchange_coefficient
	1494	ENDIF
[138]	1495	ENDDO
	1496	ENDDO
	1497
	1498	CASE DEFAULT
	1499
	1500	!
	1501	!-- The DEFAULT case is reached either if the parameter
	1502	!-- canopy mode contains a wrong character string or if the
	1503	!-- user has coded a special case in the user interface.
	1504	!-- There, the subroutine user_init_plant_canopy checks
	1505	!-- which of these two conditions applies.
	1506	CALL user_init_plant_canopy
	1507
	1508	END SELECT
	1509
[667]	1510	CALL exchange_horiz( lad_s, nbgp )
	1511	CALL exchange_horiz( cdc, nbgp )
[138]	1512
[709]	1513	IF ( passive_scalar ) THEN
[667]	1514	CALL exchange_horiz( sls, nbgp )
	1515	CALL exchange_horiz( sec, nbgp )
[153]	1516	ENDIF
	1517
	1518	!
	1519	!-- Sharp boundaries of the plant canopy in horizontal directions
	1520	!-- In vertical direction the interpolation is retained, as the leaf
	1521	!-- area density is initialised by prescribing a vertical profile
	1522	!-- consisting of piecewise linear segments. The upper boundary
	1523	!-- of the plant canopy is now defined by lad_w(pch_index,:,:) = 0.0.
	1524
[138]	1525	DO i = nxl, nxr
	1526	DO j = nys, nyn
	1527	DO k = nzb, nzt+1
[709]	1528	IF ( lad_s(k,j,i) > 0.0 ) THEN
[153]	1529	lad_u(k,j,i) = lad_s(k,j,i)
	1530	lad_u(k,j,i+1) = lad_s(k,j,i)
	1531	lad_v(k,j,i) = lad_s(k,j,i)
	1532	lad_v(k,j+1,i) = lad_s(k,j,i)
	1533	ENDIF
[138]	1534	ENDDO
	1535	DO k = nzb, nzt
	1536	lad_w(k,j,i) = 0.5 * ( lad_s(k+1,j,i) + lad_s(k,j,i) )
	1537	ENDDO
	1538	ENDDO
	1539	ENDDO
	1540
[153]	1541	lad_w(pch_index,:,:) = 0.0
	1542	lad_w(nzt+1,:,:) = lad_w(nzt,:,:)
[138]	1543
[667]	1544	CALL exchange_horiz( lad_u, nbgp )
	1545	CALL exchange_horiz( lad_v, nbgp )
	1546	CALL exchange_horiz( lad_w, nbgp )
[153]	1547
	1548	!
	1549	!-- Initialisation of the canopy heat source distribution
[709]	1550	IF ( cthf /= 0.0 ) THEN
[153]	1551	!
	1552	!-- Piecewise evaluation of the leaf area index by
	1553	!-- integration of the leaf area density
	1554	lai(:,:,:) = 0.0
[667]	1555	DO i = nxlg, nxrg
	1556	DO j = nysg, nyng
[153]	1557	DO k = pch_index-1, 0, -1
	1558	lai(k,j,i) = lai(k+1,j,i) + &
	1559	( 0.5 * ( lad_w(k+1,j,i) + &
	1560	lad_s(k+1,j,i) ) * &
	1561	( zw(k+1) - zu(k+1) ) ) + &
	1562	( 0.5 * ( lad_w(k,j,i) + &
	1563	lad_s(k+1,j,i) ) * &
	1564	( zu(k+1) - zw(k) ) )
	1565	ENDDO
	1566	ENDDO
	1567	ENDDO
	1568
	1569	!
	1570	!-- Evaluation of the upward kinematic vertical heat flux within the
	1571	!-- canopy
[667]	1572	DO i = nxlg, nxrg
	1573	DO j = nysg, nyng
[153]	1574	DO k = 0, pch_index
	1575	canopy_heat_flux(k,j,i) = cthf * &
	1576	exp( -0.6 * lai(k,j,i) )
	1577	ENDDO
	1578	ENDDO
	1579	ENDDO
	1580
	1581	!
	1582	!-- The near surface heat flux is derived from the heat flux
	1583	!-- distribution within the canopy
	1584	shf(:,:) = canopy_heat_flux(0,:,:)
	1585
	1586	ENDIF
	1587
[138]	1588	ENDIF
	1589
	1590	!
[1]	1591	!-- If required, initialize dvrp-software
	1592	IF ( dt_dvrp /= 9999999.9 ) CALL init_dvrp
	1593
[96]	1594	IF ( ocean ) THEN
[1]	1595	!
[96]	1596	!-- Initialize quantities needed for the ocean model
	1597	CALL init_ocean
[388]	1598
[96]	1599	ELSE
	1600	!
	1601	!-- Initialize quantities for handling cloud physics
[849]	1602	!-- This routine must be called before lpm_init, because
[96]	1603	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
[849]	1604	!-- lpm_init) is not defined.
[96]	1605	CALL init_cloud_physics
	1606	ENDIF
[1]	1607
	1608	!
	1609	!-- If required, initialize particles
[849]	1610	IF ( particle_advection ) CALL lpm_init
[1]	1611
	1612	!
[673]	1613	!-- Initialize the ws-scheme.
	1614	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
[1]	1615
	1616	!
[709]	1617	!-- Setting weighting factors for calculation of perturbation pressure
	1618	!-- and turbulent quantities from the RK substeps
	1619	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
	1620
[713]	1621	weight_substep(1) = 1./6.
	1622	weight_substep(2) = 3./10.
	1623	weight_substep(3) = 8./15.
[709]	1624
[713]	1625	weight_pres(1) = 1./3.
	1626	weight_pres(2) = 5./12.
	1627	weight_pres(3) = 1./4.
[709]	1628
	1629	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
	1630
[713]	1631	weight_substep(1) = 1./2.
	1632	weight_substep(2) = 1./2.
[673]	1633
[713]	1634	weight_pres(1) = 1./2.
	1635	weight_pres(2) = 1./2.
[709]	1636
[1001]	1637	ELSE ! for Euler-method
[709]	1638
[673]	1639	weight_substep(1) = 1.0
[709]	1640	weight_pres(1) = 1.0
	1641
[673]	1642	ENDIF
	1643
	1644	!
[1]	1645	!-- Initialize Rayleigh damping factors
[785]	1646	rdf = 0.0
	1647	rdf_sc = 0.0
[1]	1648	IF ( rayleigh_damping_factor /= 0.0 ) THEN
[108]	1649	IF ( .NOT. ocean ) THEN
	1650	DO k = nzb+1, nzt
	1651	IF ( zu(k) >= rayleigh_damping_height ) THEN
	1652	rdf(k) = rayleigh_damping_factor * &
[1]	1653	( SIN( pi * 0.5 * ( zu(k) - rayleigh_damping_height ) &
	1654	/ ( zu(nzt) - rayleigh_damping_height ) )&
	1655	)**2
[108]	1656	ENDIF
	1657	ENDDO
	1658	ELSE
	1659	DO k = nzt, nzb+1, -1
	1660	IF ( zu(k) <= rayleigh_damping_height ) THEN
	1661	rdf(k) = rayleigh_damping_factor * &
	1662	( SIN( pi * 0.5 * ( rayleigh_damping_height - zu(k) ) &
	1663	/ ( rayleigh_damping_height - zu(nzb+1)))&
	1664	)**2
	1665	ENDIF
	1666	ENDDO
	1667	ENDIF
[1]	1668	ENDIF
[785]	1669	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
[1]	1670
	1671	!
[240]	1672	!-- Initialize the starting level and the vertical smoothing factor used for
	1673	!-- the external pressure gradient
	1674	dp_smooth_factor = 1.0
	1675	IF ( dp_external ) THEN
	1676	!
	1677	!-- Set the starting level dp_level_ind_b only if it has not been set before
	1678	!-- (e.g. in init_grid).
	1679	IF ( dp_level_ind_b == 0 ) THEN
	1680	ind_array = MINLOC( ABS( dp_level_b - zu ) )
	1681	dp_level_ind_b = ind_array(1) - 1 + nzb
	1682	! MINLOC uses lower array bound 1
	1683	ENDIF
	1684	IF ( dp_smooth ) THEN
	1685	dp_smooth_factor(:dp_level_ind_b) = 0.0
	1686	DO k = dp_level_ind_b+1, nzt
	1687	dp_smooth_factor(k) = 0.5 * ( 1.0 + SIN( pi * &
	1688	( REAL( k - dp_level_ind_b ) / &
	1689	REAL( nzt - dp_level_ind_b ) - 0.5 ) ) )
	1690	ENDDO
	1691	ENDIF
	1692	ENDIF
	1693
	1694	!
[978]	1695	!-- Initialize damping zone for the potential temperature in case of
	1696	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
	1697	!-- at the inflow boundary and decreases to zero at pt_damping_width.
	1698	ptdf_x = 0.0
	1699	ptdf_y = 0.0
[1159]	1700	IF ( bc_lr_dirrad ) THEN
[996]	1701	DO i = nxl, nxr
[978]	1702	IF ( ( i * dx ) < pt_damping_width ) THEN
	1703	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5 * &
	1704	REAL( pt_damping_width - i * dx ) / ( &
	1705	REAL( pt_damping_width ) ) ) )**2
[73]	1706	ENDIF
	1707	ENDDO
[1159]	1708	ELSEIF ( bc_lr_raddir ) THEN
[996]	1709	DO i = nxl, nxr
[978]	1710	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
[996]	1711	ptdf_x(i) = pt_damping_factor * &
	1712	SIN( pi * 0.5 * ( ( i - nx ) * dx + pt_damping_width ) / &
	1713	REAL( pt_damping_width ) )**2
[73]	1714	ENDIF
[978]	1715	ENDDO
[1159]	1716	ELSEIF ( bc_ns_dirrad ) THEN
[996]	1717	DO j = nys, nyn
[978]	1718	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
[996]	1719	ptdf_y(j) = pt_damping_factor * &
	1720	SIN( pi * 0.5 * ( ( j - ny ) * dy + pt_damping_width ) / &
	1721	REAL( pt_damping_width ) )**2
[1]	1722	ENDIF
[978]	1723	ENDDO
[1159]	1724	ELSEIF ( bc_ns_raddir ) THEN
[996]	1725	DO j = nys, nyn
[978]	1726	IF ( ( j * dy ) < pt_damping_width ) THEN
[996]	1727	ptdf_y(j) = pt_damping_factor * &
	1728	SIN( pi * 0.5 * ( pt_damping_width - j * dy ) / &
	1729	REAL( pt_damping_width ) )**2
[1]	1730	ENDIF
[73]	1731	ENDDO
[1]	1732	ENDIF
	1733
	1734	!
[709]	1735	!-- Initialize local summation arrays for routine flow_statistics.
	1736	!-- This is necessary because they may not yet have been initialized when they
	1737	!-- are called from flow_statistics (or - depending on the chosen model run -
	1738	!-- are never initialized)
[1]	1739	sums_divnew_l = 0.0
	1740	sums_divold_l = 0.0
	1741	sums_l_l = 0.0
	1742	sums_up_fraction_l = 0.0
	1743	sums_wsts_bc_l = 0.0
	1744
	1745	!
	1746	!-- Pre-set masks for regional statistics. Default is the total model domain.
[1015]	1747	!-- Ghost points are excluded because counting values at the ghost boundaries
	1748	!-- would bias the statistics
[1]	1749	rmask = 1.0
[1025]	1750	rmask(:,nxlg:nxl-1,:) = 0.0; rmask(:,nxr+1:nxrg,:) = 0.0
	1751	rmask(nysg:nys-1,:,:) = 0.0; rmask(nyn+1:nyng,:,:) = 0.0
[1]	1752
	1753	!
[51]	1754	!-- User-defined initializing actions. Check afterwards, if maximum number
[709]	1755	!-- of allowed timeseries is exceeded
[1]	1756	CALL user_init
	1757
[51]	1758	IF ( dots_num > dots_max ) THEN
[254]	1759	WRITE( message_string, * ) 'number of time series quantities exceeds', &
[274]	1760	' its maximum of dots_max = ', dots_max, &
[254]	1761	' &Please increase dots_max in modules.f90.'
	1762	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
[51]	1763	ENDIF
	1764
[1]	1765	!
	1766	!-- Input binary data file is not needed anymore. This line must be placed
	1767	!-- after call of user_init!
	1768	CALL close_file( 13 )
	1769
	1770	!
	1771	!-- Compute total sum of active mask grid points
	1772	!-- ngp_2dh: number of grid points of a horizontal cross section through the
	1773	!-- total domain
	1774	!-- ngp_3d: number of grid points of the total domain
[132]	1775	ngp_2dh_outer_l = 0
	1776	ngp_2dh_outer = 0
	1777	ngp_2dh_s_inner_l = 0
	1778	ngp_2dh_s_inner = 0
	1779	ngp_2dh_l = 0
	1780	ngp_2dh = 0
[485]	1781	ngp_3d_inner_l = 0.0
[132]	1782	ngp_3d_inner = 0
	1783	ngp_3d = 0
	1784	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
[1]	1785
	1786	DO sr = 0, statistic_regions
	1787	DO i = nxl, nxr
	1788	DO j = nys, nyn
	1789	IF ( rmask(j,i,sr) == 1.0 ) THEN
	1790	!
	1791	!-- All xy-grid points
	1792	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1793	!
	1794	!-- xy-grid points above topography
	1795	DO k = nzb_s_outer(j,i), nz + 1
	1796	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
	1797	ENDDO
[132]	1798	DO k = nzb_s_inner(j,i), nz + 1
	1799	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
	1800	ENDDO
[1]	1801	!
	1802	!-- All grid points of the total domain above topography
	1803	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
	1804	( nz - nzb_s_inner(j,i) + 2 )
	1805	ENDIF
	1806	ENDDO
	1807	ENDDO
	1808	ENDDO
	1809
	1810	sr = statistic_regions + 1
	1811	#if defined( __parallel )
[622]	1812	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1813	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
[1]	1814	comm2d, ierr )
[622]	1815	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1816	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
[1]	1817	MPI_INTEGER, MPI_SUM, comm2d, ierr )
[622]	1818	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1819	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
[132]	1820	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
[622]	1821	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1822	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
[1]	1823	MPI_SUM, comm2d, ierr )
[485]	1824	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
[1]	1825	#else
[132]	1826	ngp_2dh = ngp_2dh_l
	1827	ngp_2dh_outer = ngp_2dh_outer_l
	1828	ngp_2dh_s_inner = ngp_2dh_s_inner_l
[485]	1829	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
[1]	1830	#endif
	1831
[560]	1832	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
	1833	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
[1]	1834
	1835	!
	1836	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
	1837	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
	1838	!-- the respective subdomain lie below the surface topography
[667]	1839	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
[631]	1840	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
	1841	ngp_3d_inner(:) )
[667]	1842	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
[1]	1843
[485]	1844	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, ngp_3d_inner_tmp )
[1]	1845
	1846
	1847	END SUBROUTINE init_3d_model

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