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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1114

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

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