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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1041

Last change on this file since 1041 was 1037, checked in by raasch, 12 years ago
last commit documented
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File size: 57.9 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	! ------------------
[979]	25	!
[1032]	26	!
[979]	27	! Former revisions:
	28	! -----------------
	29	! $Id: init_3d_model.f90 1037 2012-10-22 14:10:22Z raasch $
	30	!
[1037]	31	! 1036 2012-10-22 13:43:42Z raasch
	32	! code put under GPL (PALM 3.9)
	33	!
[1033]	34	! 1032 2012-10-21 13:03:21Z letzel
	35	! save memory by not allocating pt_2 in case of neutral = .T.
	36	!
[1026]	37	! 1025 2012-10-07 16:04:41Z letzel
	38	! bugfix: swap indices of mask for ghost boundaries
	39	!
[1017]	40	! 1015 2012-09-27 09:23:24Z raasch
	41	! mask is set to zero for ghost boundaries
	42	!
[1011]	43	! 1010 2012-09-20 07:59:54Z raasch
	44	! cpp switch __nopointer added for pointer free version
	45	!
[1004]	46	! 1003 2012-09-14 14:35:53Z raasch
	47	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
	48	!
[1002]	49	! 1001 2012-09-13 14:08:46Z raasch
	50	! all actions concerning leapfrog scheme removed
	51	!
[997]	52	! 996 2012-09-07 10:41:47Z raasch
	53	! little reformatting
	54	!
[979]	55	! 978 2012-08-09 08:28:32Z fricke
[978]	56	! outflow damping layer removed
	57	! roughness length for scalar quantites z0h added
	58	! damping zone for the potential temperatur in case of non-cyclic lateral
	59	! boundaries added
	60	! initialization of ptdf_x, ptdf_y
	61	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
[708]	62	!
[850]	63	! 849 2012-03-15 10:35:09Z raasch
	64	! init_particles renamed lpm_init
	65	!
[826]	66	! 825 2012-02-19 03:03:44Z raasch
	67	! wang_collision_kernel renamed wang_kernel
	68	!
[791]	69	! 790 2011-11-29 03:11:20Z raasch
	70	! diss is also allocated in case that the Wang kernel is used
	71	!
[788]	72	! 787 2011-11-28 12:49:05Z heinze $
	73	! bugfix: call init_advec in every case - not only for inital runs
	74	!
[786]	75	! 785 2011-11-28 09:47:19Z raasch
	76	! initialization of rdf_sc
	77	!
[768]	78	! 767 2011-10-14 06:39:12Z raasch
	79	! adjustments concerning implementation of prescribed u,v-profiles
	80	! bugfix: dirichlet_0 conditions for ug/vg moved to check_parameters
	81	!
[760]	82	! 759 2011-09-15 13:58:31Z raasch
	83	! Splitting of parallel I/O in blocks of PEs
	84	! Bugfix: No zero assignments to volume_flow_initial and volume_flow_area in
	85	! case of normal restart runs.
	86	!
[714]	87	! 713 2011-03-30 14:21:21Z suehring
[732]	88	! weight_substep and weight_pres are given as fractions.
[714]	89	!
[710]	90	! 709 2011-03-30 09:31:40Z raasch
	91	! formatting adjustments
	92	!
[708]	93	! 707 2011-03-29 11:39:40Z raasch
[707]	94	! p_sub renamed p_loc and allocated depending on the chosen pressure solver,
	95	! initial assignments of zero to array p for iterative solvers only,
	96	! bc_lr/ns replaced by bc_lr/ns_dirrad/raddir
[674]	97	!
[708]	98	! 680 2011-02-04 23:16:06Z gryschka
[681]	99	! bugfix: volume_flow_control
[668]	100	!
[674]	101	! 673 2011-01-18 16:19:48Z suehring
	102	! weight_substep (moved from advec_ws) and weight_pres added.
	103	! Allocate p_sub when using Multigrid or SOR solver.
	104	! Call of ws_init moved behind the if requests.
	105	!
[668]	106	! 667 2010-12-23 12:06:00Z suehring/gryschka
[667]	107	! nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng in loops and
	108	! allocation of arrays. Calls of exchange_horiz are modified.
[709]	109	! Call ws_init to initialize arrays needed for calculating statisticas and for
[667]	110	! optimization when ws-scheme is used.
	111	! Initial volume flow is now calculated by using the variable hom_sum.
	112	! Therefore the correction of initial volume flow for non-flat topography
	113	! removed (removed u_nzb_p1_for_vfc and v_nzb_p1_for_vfc)
	114	! Changed surface boundary conditions for u and v in case of ibc_uv_b == 0 from
[709]	115	! mirror to Dirichlet boundary conditions (u=v=0), so that k=nzb is
	116	! representative for the height z0.
[667]	117	! Bugfix: type conversion of '1' to 64bit for the MAX function (ngp_3d_inner)
	118	!
[623]	119	! 622 2010-12-10 08:08:13Z raasch
	120	! optional barriers included in order to speed up collective operations
	121	!
[561]	122	! 560 2010-09-09 10:06:09Z weinreis
	123	! bugfix: correction of calculating ngp_3d for 64 bit
	124	!
[486]	125	! 485 2010-02-05 10:57:51Z raasch
	126	! calculation of ngp_3d + ngp_3d_inner changed because they have now 64 bit
	127	!
[482]	128	! 407 2009-12-01 15:01:15Z maronga
	129	! var_ts is replaced by dots_max
	130	! Enabled passive scalar/humidity wall fluxes for non-flat topography
	131	!
[392]	132	! 388 2009-09-23 09:40:33Z raasch
[388]	133	! Initialization of prho added.
[359]	134	! bugfix: correction of initial volume flow for non-flat topography
	135	! bugfix: zero initialization of arrays within buildings for 'cyclic_fill'
[333]	136	! bugfix: avoid that ngp_2dh_s_inner becomes zero
[328]	137	! initializing_actions='read_data_for_recycling' renamed to 'cyclic_fill', now
	138	! independent of turbulent_inflow
[254]	139	! Output of messages replaced by message handling routine.
[240]	140	! Set the starting level and the vertical smoothing factor used for
	141	! the external pressure gradient
[254]	142	! +conserve_volume_flow_mode: 'default', 'initial_profiles', 'inflow_profile'
[241]	143	! and 'bulk_velocity'
[292]	144	! If the inversion height calculated by the prerun is zero,
	145	! inflow_damping_height must be explicitly specified.
[139]	146	!
[198]	147	! 181 2008-07-30 07:07:47Z raasch
	148	! bugfix: zero assignments to tendency arrays in case of restarts,
	149	! further extensions and modifications in the initialisation of the plant
	150	! canopy model,
	151	! allocation of hom_sum moved to parin, initialization of spectrum_x\|y directly
	152	! after allocating theses arrays,
	153	! read data for recycling added as new initialization option,
	154	! dummy allocation for diss
	155	!
[139]	156	! 138 2007-11-28 10:03:58Z letzel
[132]	157	! New counter ngp_2dh_s_inner.
	158	! Allow new case bc_uv_t = 'dirichlet_0' for channel flow.
	159	! Corrected calculation of initial volume flow for 'set_1d-model_profiles' and
	160	! 'set_constant_profiles' in case of buildings in the reference cross-sections.
[77]	161	!
[110]	162	! 108 2007-08-24 15:10:38Z letzel
	163	! Flux initialization in case of coupled runs, +momentum fluxes at top boundary,
	164	! +arrays for phase speed c_u, c_v, c_w, indices for u\|v\|w_m_l\|r changed
	165	! +qswst_remote in case of atmosphere model with humidity coupled to ocean
	166	! Rayleigh damping for ocean, optionally calculate km and kh from initial
	167	! TKE e_init
	168	!
[98]	169	! 97 2007-06-21 08:23:15Z raasch
	170	! Initialization of salinity, call of init_ocean
	171	!
[90]	172	! 87 2007-05-22 15:46:47Z raasch
	173	! var_hom and var_sum renamed pr_palm
	174	!
[77]	175	! 75 2007-03-22 09:54:05Z raasch
[73]	176	! Arrays for radiation boundary conditions are allocated (u_m_l, u_m_r, etc.),
	177	! bugfix for cases with the outflow damping layer extending over more than one
[75]	178	! subdomain, moisture renamed humidity,
	179	! new initializing action "by_user" calls user_init_3d_model,
[72]	180	! precipitation_amount/rate, ts_value are allocated, +module netcdf_control,
[51]	181	! initial velocities at nzb+1 are regarded for volume
	182	! flow control in case they have been set zero before (to avoid small timesteps)
[75]	183	! -uvmean_outflow, uxrp, vynp eliminated
[1]	184	!
[39]	185	! 19 2007-02-23 04:53:48Z raasch
	186	! +handling of top fluxes
	187	!
[3]	188	! RCS Log replace by Id keyword, revision history cleaned up
	189	!
[1]	190	! Revision 1.49 2006/08/22 15:59:07 raasch
	191	! No optimization of this file on the ibmy (Yonsei Univ.)
	192	!
	193	! Revision 1.1 1998/03/09 16:22:22 raasch
	194	! Initial revision
	195	!
	196	!
	197	! Description:
	198	! ------------
	199	! Allocation of arrays and initialization of the 3D model via
	200	! a) pre-run the 1D model
	201	! or
	202	! b) pre-set constant linear profiles
	203	! or
	204	! c) read values of a previous run
	205	!------------------------------------------------------------------------------!
	206
[667]	207	USE advec_ws
[1]	208	USE arrays_3d
	209	USE averaging
[72]	210	USE cloud_parameters
[1]	211	USE constants
	212	USE control_parameters
	213	USE cpulog
[978]	214	USE grid_variables
[1]	215	USE indices
	216	USE interfaces
	217	USE model_1d
[51]	218	USE netcdf_control
[1]	219	USE particle_attributes
	220	USE pegrid
	221	USE profil_parameter
	222	USE random_function_mod
	223	USE statistics
	224
	225	IMPLICIT NONE
	226
[559]	227	INTEGER :: i, ind_array(1), j, k, sr
[1]	228
[485]	229	INTEGER, DIMENSION(:), ALLOCATABLE :: ngp_2dh_l
[1]	230
[132]	231	INTEGER, DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l, &
[996]	232	ngp_2dh_s_inner_l
[1]	233
[153]	234	REAL :: a, b
	235
[1]	236	REAL, DIMENSION(1:2) :: volume_flow_area_l, volume_flow_initial_l
	237
[485]	238	REAL, DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l, ngp_3d_inner_tmp
[1]	239
[485]	240
[1]	241	!
	242	!-- Allocate arrays
	243	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
	244	ngp_3d(0:statistic_regions), &
	245	ngp_3d_inner(0:statistic_regions), &
	246	ngp_3d_inner_l(0:statistic_regions), &
[485]	247	ngp_3d_inner_tmp(0:statistic_regions), &
[1]	248	sums_divnew_l(0:statistic_regions), &
	249	sums_divold_l(0:statistic_regions) )
[785]	250	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
[143]	251	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
[1]	252	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
[132]	253	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
	254	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
[996]	255	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
[87]	256	sums(nzb:nzt+1,pr_palm+max_pr_user), &
	257	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
[1]	258	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
	259	sums_up_fraction_l(10,3,0:statistic_regions), &
[48]	260	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
[394]	261	ts_value(dots_max,0:statistic_regions) )
[978]	262	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
[1]	263
[1001]	264	ALLOCATE( rif(nysg:nyng,nxlg:nxrg), shf(nysg:nyng,nxlg:nxrg), &
	265	ts(nysg:nyng,nxlg:nxrg), tswst(nysg:nyng,nxlg:nxrg), &
	266	us(nysg:nyng,nxlg:nxrg), usws(nysg:nyng,nxlg:nxrg), &
	267	uswst(nysg:nyng,nxlg:nxrg), vsws(nysg:nyng,nxlg:nxrg), &
	268	vswst(nysg:nyng,nxlg:nxrg), z0(nysg:nyng,nxlg:nxrg), &
[978]	269	z0h(nysg:nyng,nxlg:nxrg) )
[1]	270
[1010]	271	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
	272	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	273	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	274	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	275	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	276
	277	#if defined( __nopointer )
	278	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	279	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	280	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	281	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	282	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	283	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	284	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	285	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	286	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	287	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	288	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	289	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	290	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	291	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	292	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	293	#else
	294	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	295	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	296	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	297	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	298	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	299	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	300	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	301	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	302	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	303	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	304	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	305	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	306	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	307	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1032]	308	IF ( .NOT. neutral ) THEN
	309	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	310	ENDIF
[1010]	311	#endif
	312
[673]	313	!
[707]	314	!-- Following array is required for perturbation pressure within the iterative
	315	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
	316	!-- the weighted average of the substeps and cannot be used in the Poisson
	317	!-- solver.
	318	IF ( psolver == 'sor' ) THEN
	319	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	320	ELSEIF ( psolver == 'multigrid' ) THEN
	321	!
	322	!-- For performance reasons, multigrid is using one ghost layer only
	323	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[673]	324	ENDIF
[1]	325
[75]	326	IF ( humidity .OR. passive_scalar ) THEN
[1]	327	!
[75]	328	!-- 2D-humidity/scalar arrays
[1001]	329	ALLOCATE ( qs(nysg:nyng,nxlg:nxrg), &
	330	qsws(nysg:nyng,nxlg:nxrg), &
	331	qswst(nysg:nyng,nxlg:nxrg) )
[1]	332
	333	!
[75]	334	!-- 3D-humidity/scalar arrays
[1010]	335	#if defined( __nopointer )
	336	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	337	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	338	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	339	#else
[667]	340	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	341	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	342	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	343	#endif
[1]	344
	345	!
[75]	346	!-- 3D-arrays needed for humidity only
	347	IF ( humidity ) THEN
[1010]	348	#if defined( __nopointer )
	349	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	350	#else
[667]	351	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	352	#endif
[1]	353
	354	IF ( cloud_physics ) THEN
	355	!
	356	!-- Liquid water content
[1010]	357	#if defined( __nopointer )
	358	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	359	#else
[667]	360	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	361	#endif
[72]	362	!
	363	!-- Precipitation amount and rate (only needed if output is switched)
[667]	364	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
	365	precipitation_rate(nysg:nyng,nxlg:nxrg) )
[1]	366	ENDIF
	367
	368	IF ( cloud_droplets ) THEN
	369	!
[1010]	370	!-- Liquid water content, change in liquid water content
	371	#if defined( __nopointer )
	372	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	373	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	374	#else
[667]	375	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1010]	376	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	377	#endif
	378	!
	379	!-- Real volume of particles (with weighting), volume of particles
	380	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	381	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1]	382	ENDIF
	383
	384	ENDIF
	385
	386	ENDIF
	387
[94]	388	IF ( ocean ) THEN
[1001]	389	ALLOCATE( saswsb(nysg:nyng,nxlg:nxrg), &
	390	saswst(nysg:nyng,nxlg:nxrg) )
[1010]	391	#if defined( __nopointer )
	392	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	393	rho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	394	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	395	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	396	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	397	#else
[667]	398	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	399	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	400	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	401	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	402	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[388]	403	prho => prho_1
	404	rho => rho_1 ! routines calc_mean_profile and diffusion_e require
	405	! density to be apointer
[1010]	406	#endif
[108]	407	IF ( humidity_remote ) THEN
[667]	408	ALLOCATE( qswst_remote(nysg:nyng,nxlg:nxrg))
[108]	409	qswst_remote = 0.0
	410	ENDIF
[94]	411	ENDIF
	412
[1]	413	!
	414	!-- 3D-array for storing the dissipation, needed for calculating the sgs
	415	!-- particle velocities
[825]	416	IF ( use_sgs_for_particles .OR. wang_kernel ) THEN
[667]	417	ALLOCATE ( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[181]	418	ELSE
	419	ALLOCATE ( diss(2,2,2) ) ! required because diss is used as a
	420	! formal parameter
[1]	421	ENDIF
	422
	423	IF ( dt_dosp /= 9999999.9 ) THEN
	424	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
	425	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
[146]	426	spectrum_x = 0.0
	427	spectrum_y = 0.0
[1]	428	ENDIF
	429
	430	!
[138]	431	!-- 3D-arrays for the leaf area density and the canopy drag coefficient
	432	IF ( plant_canopy ) THEN
[667]	433	ALLOCATE ( lad_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	434	lad_u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	435	lad_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	436	lad_w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	437	cdc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[153]	438
	439	IF ( passive_scalar ) THEN
[996]	440	ALLOCATE ( sls(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	441	sec(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[153]	442	ENDIF
	443
	444	IF ( cthf /= 0.0 ) THEN
[996]	445	ALLOCATE ( lai(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	446	canopy_heat_flux(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[153]	447	ENDIF
	448
[138]	449	ENDIF
	450
	451	!
[51]	452	!-- 4D-array for storing the Rif-values at vertical walls
	453	IF ( topography /= 'flat' ) THEN
[667]	454	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
[51]	455	rif_wall = 0.0
	456	ENDIF
	457
	458	!
[106]	459	!-- Arrays to store velocity data from t-dt and the phase speeds which
	460	!-- are needed for radiation boundary conditions
[73]	461	IF ( outflow_l ) THEN
[667]	462	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
	463	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
	464	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
[73]	465	ENDIF
	466	IF ( outflow_r ) THEN
[667]	467	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	468	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	469	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
[73]	470	ENDIF
[106]	471	IF ( outflow_l .OR. outflow_r ) THEN
[667]	472	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
	473	c_w(nzb:nzt+1,nysg:nyng) )
[106]	474	ENDIF
[73]	475	IF ( outflow_s ) THEN
[667]	476	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
	477	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
	478	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
[73]	479	ENDIF
	480	IF ( outflow_n ) THEN
[667]	481	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	482	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	483	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
[73]	484	ENDIF
[106]	485	IF ( outflow_s .OR. outflow_n ) THEN
[667]	486	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
	487	c_w(nzb:nzt+1,nxlg:nxrg) )
[106]	488	ENDIF
[996]	489	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
[978]	490	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
	491	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
	492	ENDIF
[73]	493
[978]	494
[1010]	495	#if ! defined( __nopointer )
[73]	496	!
[1]	497	!-- Initial assignment of the pointers
[1001]	498	e => e_1; e_p => e_2; te_m => e_3
[1032]	499	IF ( .NOT. neutral ) THEN
	500	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
	501	ELSE
	502	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
	503	ENDIF
[1001]	504	u => u_1; u_p => u_2; tu_m => u_3
	505	v => v_1; v_p => v_2; tv_m => v_3
	506	w => w_1; w_p => w_2; tw_m => w_3
[1]	507
[1001]	508	IF ( humidity .OR. passive_scalar ) THEN
	509	q => q_1; q_p => q_2; tq_m => q_3
	510	IF ( humidity ) vpt => vpt_1
	511	IF ( cloud_physics ) ql => ql_1
	512	IF ( cloud_droplets ) THEN
	513	ql => ql_1
	514	ql_c => ql_2
[1]	515	ENDIF
[1001]	516	ENDIF
[1]	517
[1001]	518	IF ( ocean ) THEN
	519	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
	520	ENDIF
[1010]	521	#endif
[1]	522
	523	!
[709]	524	!-- Allocate arrays containing the RK coefficient for calculation of
	525	!-- perturbation pressure and turbulent fluxes. At this point values are
	526	!-- set for pressure calculation during initialization (where no timestep
	527	!-- is done). Further below the values needed within the timestep scheme
	528	!-- will be set.
	529	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
[673]	530	weight_pres(1:intermediate_timestep_count_max) )
[709]	531	weight_substep = 1.0
	532	weight_pres = 1.0
	533	intermediate_timestep_count = 1 ! needed when simulated_time = 0.0
[673]	534
	535	!
[1]	536	!-- Initialize model variables
[147]	537	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[328]	538	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[1]	539	!
	540	!-- First model run of a possible job queue.
	541	!-- Initial profiles of the variables must be computes.
	542	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
	543	!
	544	!-- Use solutions of the 1D model as initial profiles,
	545	!-- start 1D model
	546	CALL init_1d_model
	547	!
	548	!-- Transfer initial profiles to the arrays of the 3D model
[667]	549	DO i = nxlg, nxrg
	550	DO j = nysg, nyng
[1]	551	e(:,j,i) = e1d
	552	kh(:,j,i) = kh1d
	553	km(:,j,i) = km1d
	554	pt(:,j,i) = pt_init
	555	u(:,j,i) = u1d
	556	v(:,j,i) = v1d
	557	ENDDO
	558	ENDDO
	559
[75]	560	IF ( humidity .OR. passive_scalar ) THEN
[667]	561	DO i = nxlg, nxrg
	562	DO j = nysg, nyng
[1]	563	q(:,j,i) = q_init
	564	ENDDO
	565	ENDDO
	566	ENDIF
	567
	568	IF ( .NOT. constant_diffusion ) THEN
[667]	569	DO i = nxlg, nxrg
	570	DO j = nysg, nyng
[1]	571	e(:,j,i) = e1d
	572	ENDDO
	573	ENDDO
	574	!
	575	!-- Store initial profiles for output purposes etc.
	576	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	577
	578	IF ( prandtl_layer ) THEN
	579	rif = rif1d(nzb+1)
	580	ts = 0.0 ! could actually be computed more accurately in the
	581	! 1D model. Update when opportunity arises.
	582	us = us1d
	583	usws = usws1d
	584	vsws = vsws1d
	585	ELSE
	586	ts = 0.0 ! must be set, because used in
	587	rif = 0.0 ! flowste
	588	us = 0.0
	589	usws = 0.0
	590	vsws = 0.0
	591	ENDIF
	592
	593	ELSE
	594	e = 0.0 ! must be set, because used in
	595	rif = 0.0 ! flowste
	596	ts = 0.0
	597	us = 0.0
	598	usws = 0.0
	599	vsws = 0.0
	600	ENDIF
[102]	601	uswst = top_momentumflux_u
	602	vswst = top_momentumflux_v
[1]	603
	604	!
	605	!-- In every case qs = 0.0 (see also pt)
	606	!-- This could actually be computed more accurately in the 1D model.
	607	!-- Update when opportunity arises!
[75]	608	IF ( humidity .OR. passive_scalar ) qs = 0.0
[1]	609
	610	!
	611	!-- inside buildings set velocities back to zero
	612	IF ( topography /= 'flat' ) THEN
	613	DO i = nxl-1, nxr+1
	614	DO j = nys-1, nyn+1
	615	u(nzb:nzb_u_inner(j,i),j,i) = 0.0
	616	v(nzb:nzb_v_inner(j,i),j,i) = 0.0
	617	ENDDO
	618	ENDDO
[667]	619
[1]	620	!
	621	!-- WARNING: The extra boundary conditions set after running the
	622	!-- ------- 1D model impose an error on the divergence one layer
	623	!-- below the topography; need to correct later
	624	!-- ATTENTION: Provisional correction for Piacsek & Williams
	625	!-- --------- advection scheme: keep u and v zero one layer below
	626	!-- the topography.
[667]	627	IF ( ibc_uv_b == 1 ) THEN
	628	!
[1]	629	!-- Neumann condition
	630	DO i = nxl-1, nxr+1
	631	DO j = nys-1, nyn+1
	632	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
	633	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
	634	ENDDO
	635	ENDDO
	636
	637	ENDIF
	638
	639	ENDIF
	640
	641	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
	642	THEN
	643	!
	644	!-- Use constructed initial profiles (velocity constant with height,
	645	!-- temperature profile with constant gradient)
[667]	646	DO i = nxlg, nxrg
	647	DO j = nysg, nyng
[1]	648	pt(:,j,i) = pt_init
	649	u(:,j,i) = u_init
	650	v(:,j,i) = v_init
	651	ENDDO
	652	ENDDO
[75]	653
[1]	654	!
[292]	655	!-- Set initial horizontal velocities at the lowest computational grid
	656	!-- levels to zero in order to avoid too small time steps caused by the
	657	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
	658	!-- in the limiting formula!). The original values are stored to be later
	659	!-- used for volume flow control.
[667]	660	DO i = nxlg, nxrg
	661	DO j = nysg, nyng
[1]	662	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0
	663	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0
	664	ENDDO
	665	ENDDO
	666
[75]	667	IF ( humidity .OR. passive_scalar ) THEN
[667]	668	DO i = nxlg, nxrg
	669	DO j = nysg, nyng
[1]	670	q(:,j,i) = q_init
	671	ENDDO
	672	ENDDO
	673	ENDIF
	674
[94]	675	IF ( ocean ) THEN
[667]	676	DO i = nxlg, nxrg
	677	DO j = nysg, nyng
[94]	678	sa(:,j,i) = sa_init
	679	ENDDO
	680	ENDDO
	681	ENDIF
[1]	682
	683	IF ( constant_diffusion ) THEN
	684	km = km_constant
	685	kh = km / prandtl_number
[108]	686	e = 0.0
	687	ELSEIF ( e_init > 0.0 ) THEN
	688	DO k = nzb+1, nzt
	689	km(k,:,:) = 0.1 * l_grid(k) * SQRT( e_init )
	690	ENDDO
	691	km(nzb,:,:) = km(nzb+1,:,:)
	692	km(nzt+1,:,:) = km(nzt,:,:)
	693	kh = km / prandtl_number
	694	e = e_init
[1]	695	ELSE
[108]	696	IF ( .NOT. ocean ) THEN
	697	kh = 0.01 ! there must exist an initial diffusion, because
	698	km = 0.01 ! otherwise no TKE would be produced by the
	699	! production terms, as long as not yet
	700	! e = (u/cm)*2 at k=nzb+1
	701	ELSE
	702	kh = 0.00001
	703	km = 0.00001
	704	ENDIF
	705	e = 0.0
[1]	706	ENDIF
[102]	707	rif = 0.0
	708	ts = 0.0
	709	us = 0.0
	710	usws = 0.0
	711	uswst = top_momentumflux_u
	712	vsws = 0.0
	713	vswst = top_momentumflux_v
[75]	714	IF ( humidity .OR. passive_scalar ) qs = 0.0
[1]	715
	716	!
	717	!-- Compute initial temperature field and other constants used in case
	718	!-- of a sloping surface
	719	IF ( sloping_surface ) CALL init_slope
	720
[46]	721	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
	722	THEN
	723	!
	724	!-- Initialization will completely be done by the user
	725	CALL user_init_3d_model
	726
[1]	727	ENDIF
[667]	728	!
	729	!-- Bottom boundary
	730	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
	731	u(nzb,:,:) = 0.0
	732	v(nzb,:,:) = 0.0
	733	ENDIF
[1]	734
	735	!
[151]	736	!-- Apply channel flow boundary condition
[132]	737	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
	738	u(nzt+1,:,:) = 0.0
	739	v(nzt+1,:,:) = 0.0
	740	ENDIF
	741
	742	!
[1]	743	!-- Calculate virtual potential temperature
[75]	744	IF ( humidity ) vpt = pt * ( 1.0 + 0.61 * q )
[1]	745
	746	!
	747	!-- Store initial profiles for output purposes etc.
	748	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	749	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
[667]	750	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
	751	hom(nzb,1,5,:) = 0.0
	752	hom(nzb,1,6,:) = 0.0
[1]	753	ENDIF
	754	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	755	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
	756	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
	757
[97]	758	IF ( ocean ) THEN
	759	!
	760	!-- Store initial salinity profile
	761	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
	762	ENDIF
[1]	763
[75]	764	IF ( humidity ) THEN
[1]	765	!
	766	!-- Store initial profile of total water content, virtual potential
	767	!-- temperature
	768	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	769	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
	770	IF ( cloud_physics .OR. cloud_droplets ) THEN
	771	!
	772	!-- Store initial profile of specific humidity and potential
	773	!-- temperature
	774	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	775	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	776	ENDIF
	777	ENDIF
	778
	779	IF ( passive_scalar ) THEN
	780	!
	781	!-- Store initial scalar profile
	782	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	783	ENDIF
	784
	785	!
[19]	786	!-- Initialize fluxes at bottom surface
[1]	787	IF ( use_surface_fluxes ) THEN
	788
	789	IF ( constant_heatflux ) THEN
	790	!
	791	!-- Heat flux is prescribed
	792	IF ( random_heatflux ) THEN
	793	CALL disturb_heatflux
	794	ELSE
	795	shf = surface_heatflux
	796	!
	797	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
	798	IF ( TRIM( topography ) /= 'flat' ) THEN
[667]	799	DO i = nxlg, nxrg
	800	DO j = nysg, nyng
[1]	801	IF ( nzb_s_inner(j,i) /= 0 ) THEN
	802	shf(j,i) = wall_heatflux(0)
	803	ENDIF
	804	ENDDO
	805	ENDDO
	806	ENDIF
	807	ENDIF
	808	ENDIF
	809
	810	!
	811	!-- Determine the near-surface water flux
[75]	812	IF ( humidity .OR. passive_scalar ) THEN
[1]	813	IF ( constant_waterflux ) THEN
	814	qsws = surface_waterflux
[407]	815	!
	816	!-- Over topography surface_waterflux is replaced by
	817	!-- wall_humidityflux(0)
	818	IF ( TRIM( topography ) /= 'flat' ) THEN
	819	wall_qflux = wall_humidityflux
[667]	820	DO i = nxlg, nxrg
	821	DO j = nysg, nyng
[407]	822	IF ( nzb_s_inner(j,i) /= 0 ) THEN
	823	qsws(j,i) = wall_qflux(0)
	824	ENDIF
	825	ENDDO
	826	ENDDO
	827	ENDIF
[1]	828	ENDIF
	829	ENDIF
	830
	831	ENDIF
	832
	833	!
[19]	834	!-- Initialize fluxes at top surface
[94]	835	!-- Currently, only the heatflux and salinity flux can be prescribed.
	836	!-- The latent flux is zero in this case!
[19]	837	IF ( use_top_fluxes ) THEN
	838
	839	IF ( constant_top_heatflux ) THEN
	840	!
	841	!-- Heat flux is prescribed
	842	tswst = top_heatflux
	843
[1001]	844	IF ( humidity .OR. passive_scalar ) qswst = 0.0
[94]	845
	846	IF ( ocean ) THEN
[95]	847	saswsb = bottom_salinityflux
[94]	848	saswst = top_salinityflux
	849	ENDIF
[102]	850	ENDIF
[19]	851
[102]	852	!
	853	!-- Initialization in case of a coupled model run
	854	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
	855	tswst = 0.0
	856	ENDIF
	857
[19]	858	ENDIF
	859
	860	!
[1]	861	!-- Initialize Prandtl layer quantities
	862	IF ( prandtl_layer ) THEN
	863
	864	z0 = roughness_length
[978]	865	z0h = z0h_factor * z0
[1]	866
	867	IF ( .NOT. constant_heatflux ) THEN
	868	!
	869	!-- Surface temperature is prescribed. Here the heat flux cannot be
	870	!-- simply estimated, because therefore rif, u* and theta* would have
	871	!-- to be computed by iteration. This is why the heat flux is assumed
	872	!-- to be zero before the first time step. It approaches its correct
	873	!-- value in the course of the first few time steps.
	874	shf = 0.0
	875	ENDIF
	876
[75]	877	IF ( humidity .OR. passive_scalar ) THEN
[1001]	878	IF ( .NOT. constant_waterflux ) qsws = 0.0
[1]	879	ENDIF
	880
	881	ENDIF
	882
[152]	883
	884	!
[707]	885	!-- For the moment, vertical velocity is zero
	886	w = 0.0
[1]	887
	888	!
	889	!-- Initialize array sums (must be defined in first call of pres)
	890	sums = 0.0
	891
	892	!
[707]	893	!-- In case of iterative solvers, p must get an initial value
	894	IF ( psolver == 'multigrid' .OR. psolver == 'sor' ) p = 0.0
	895
	896	!
[72]	897	!-- Treating cloud physics, liquid water content and precipitation amount
	898	!-- are zero at beginning of the simulation
	899	IF ( cloud_physics ) THEN
	900	ql = 0.0
	901	IF ( precipitation ) precipitation_amount = 0.0
	902	ENDIF
[673]	903	!
[1]	904	!-- Impose vortex with vertical axis on the initial velocity profile
	905	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	906	CALL init_rankine
	907	ENDIF
	908
	909	!
	910	!-- Impose temperature anomaly (advection test only)
	911	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
	912	CALL init_pt_anomaly
	913	ENDIF
	914
	915	!
	916	!-- If required, change the surface temperature at the start of the 3D run
	917	IF ( pt_surface_initial_change /= 0.0 ) THEN
	918	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	919	ENDIF
	920
	921	!
	922	!-- If required, change the surface humidity/scalar at the start of the 3D
	923	!-- run
[75]	924	IF ( ( humidity .OR. passive_scalar ) .AND. &
[1]	925	q_surface_initial_change /= 0.0 ) THEN
	926	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
	927	ENDIF
	928
	929	!
	930	!-- Initialize the random number generator (from numerical recipes)
	931	CALL random_function_ini
	932
	933	!
	934	!-- Initialize old and new time levels.
[1001]	935	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
[1]	936	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
	937
[75]	938	IF ( humidity .OR. passive_scalar ) THEN
[1001]	939	tq_m = 0.0
[1]	940	q_p = q
	941	ENDIF
	942
[94]	943	IF ( ocean ) THEN
	944	tsa_m = 0.0
	945	sa_p = sa
	946	ENDIF
[667]	947
[94]	948
[147]	949	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
[667]	950	TRIM( initializing_actions ) == 'cyclic_fill' ) &
[1]	951	THEN
	952	!
[767]	953	!-- When reading data for cyclic fill of 3D prerun data files, read
	954	!-- some of the global variables from the restart file which are required
	955	!-- for initializing the inflow
[328]	956	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[559]	957
[759]	958	DO i = 0, io_blocks-1
	959	IF ( i == io_group ) THEN
	960	CALL read_parts_of_var_list
	961	CALL close_file( 13 )
	962	ENDIF
	963	#if defined( __parallel )
	964	CALL MPI_BARRIER( comm2d, ierr )
	965	#endif
	966	ENDDO
[328]	967
[767]	968	ENDIF
	969
[151]	970	!
[767]	971	!-- Read binary data from restart file
	972	DO i = 0, io_blocks-1
	973	IF ( i == io_group ) THEN
	974	CALL read_3d_binary
	975	ENDIF
	976	#if defined( __parallel )
	977	CALL MPI_BARRIER( comm2d, ierr )
	978	#endif
	979	ENDDO
	980
[328]	981	!
[767]	982	!-- Initialization of the turbulence recycling method
	983	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
	984	turbulent_inflow ) THEN
	985	!
	986	!-- First store the profiles to be used at the inflow.
	987	!-- These profiles are the (temporally) and horizontally averaged vertical
	988	!-- profiles from the prerun. Alternatively, prescribed profiles
	989	!-- for u,v-components can be used.
	990	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,5) )
[151]	991
[767]	992	IF ( use_prescribed_profile_data ) THEN
	993	mean_inflow_profiles(:,1) = u_init ! u
	994	mean_inflow_profiles(:,2) = v_init ! v
	995	ELSE
[328]	996	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
	997	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
[767]	998	ENDIF
	999	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
	1000	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
[151]	1001
	1002	!
[767]	1003	!-- If necessary, adjust the horizontal flow field to the prescribed
	1004	!-- profiles
	1005	IF ( use_prescribed_profile_data ) THEN
	1006	DO i = nxlg, nxrg
[667]	1007	DO j = nysg, nyng
[328]	1008	DO k = nzb, nzt+1
[767]	1009	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
	1010	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
[328]	1011	ENDDO
[151]	1012	ENDDO
[767]	1013	ENDDO
	1014	ENDIF
[151]	1015
	1016	!
[767]	1017	!-- Use these mean profiles at the inflow (provided that Dirichlet
	1018	!-- conditions are used)
	1019	IF ( inflow_l ) THEN
	1020	DO j = nysg, nyng
	1021	DO k = nzb, nzt+1
	1022	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
	1023	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
	1024	w(k,j,nxlg:-1) = 0.0
	1025	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
	1026	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
	1027	ENDDO
	1028	ENDDO
	1029	ENDIF
	1030
[151]	1031	!
[767]	1032	!-- Calculate the damping factors to be used at the inflow. For a
	1033	!-- turbulent inflow the turbulent fluctuations have to be limited
	1034	!-- vertically because otherwise the turbulent inflow layer will grow
	1035	!-- in time.
	1036	IF ( inflow_damping_height == 9999999.9 ) THEN
	1037	!
	1038	!-- Default: use the inversion height calculated by the prerun; if
	1039	!-- this is zero, inflow_damping_height must be explicitly
	1040	!-- specified.
	1041	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0 ) THEN
	1042	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
	1043	ELSE
	1044	WRITE( message_string, * ) 'inflow_damping_height must be ',&
	1045	'explicitly specified because&the inversion height ', &
	1046	'calculated by the prerun is zero.'
	1047	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
[292]	1048	ENDIF
[151]	1049
[767]	1050	ENDIF
	1051
	1052	IF ( inflow_damping_width == 9999999.9 ) THEN
[151]	1053	!
[767]	1054	!-- Default for the transition range: one tenth of the undamped
	1055	!-- layer
	1056	inflow_damping_width = 0.1 * inflow_damping_height
[151]	1057
[767]	1058	ENDIF
[151]	1059
[767]	1060	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
[151]	1061
[767]	1062	DO k = nzb, nzt+1
[151]	1063
[767]	1064	IF ( zu(k) <= inflow_damping_height ) THEN
	1065	inflow_damping_factor(k) = 1.0
[996]	1066	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
	1067	inflow_damping_factor(k) = 1.0 - &
	1068	( zu(k) - inflow_damping_height ) / &
	1069	inflow_damping_width
[767]	1070	ELSE
	1071	inflow_damping_factor(k) = 0.0
	1072	ENDIF
[151]	1073
[767]	1074	ENDDO
[151]	1075
[147]	1076	ENDIF
	1077
[152]	1078	!
[359]	1079	!-- Inside buildings set velocities and TKE back to zero
	1080	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
	1081	topography /= 'flat' ) THEN
	1082	!
	1083	!-- Inside buildings set velocities and TKE back to zero.
	1084	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
	1085	!-- maybe revise later.
[1001]	1086	DO i = nxlg, nxrg
	1087	DO j = nysg, nyng
	1088	u (nzb:nzb_u_inner(j,i),j,i) = 0.0
	1089	v (nzb:nzb_v_inner(j,i),j,i) = 0.0
	1090	w (nzb:nzb_w_inner(j,i),j,i) = 0.0
	1091	e (nzb:nzb_w_inner(j,i),j,i) = 0.0
	1092	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0
	1093	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0
	1094	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
	1095	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
	1096	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
[359]	1097	ENDDO
[1001]	1098	ENDDO
[359]	1099
	1100	ENDIF
	1101
	1102	!
[1]	1103	!-- Calculate initial temperature field and other constants used in case
	1104	!-- of a sloping surface
	1105	IF ( sloping_surface ) CALL init_slope
	1106
	1107	!
	1108	!-- Initialize new time levels (only done in order to set boundary values
	1109	!-- including ghost points)
	1110	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
[75]	1111	IF ( humidity .OR. passive_scalar ) q_p = q
[94]	1112	IF ( ocean ) sa_p = sa
[1]	1113
[181]	1114	!
	1115	!-- Allthough tendency arrays are set in prognostic_equations, they have
	1116	!-- have to be predefined here because they are used (but multiplied with 0)
	1117	!-- there before they are set.
[1001]	1118	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
	1119	IF ( humidity .OR. passive_scalar ) tq_m = 0.0
	1120	IF ( ocean ) tsa_m = 0.0
[181]	1121
[1]	1122	ELSE
	1123	!
	1124	!-- Actually this part of the programm should not be reached
[254]	1125	message_string = 'unknown initializing problem'
	1126	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
[1]	1127	ENDIF
	1128
[151]	1129
	1130	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
[1]	1131	!
[151]	1132	!-- Initialize old timelevels needed for radiation boundary conditions
	1133	IF ( outflow_l ) THEN
	1134	u_m_l(:,:,:) = u(:,:,1:2)
	1135	v_m_l(:,:,:) = v(:,:,0:1)
	1136	w_m_l(:,:,:) = w(:,:,0:1)
	1137	ENDIF
	1138	IF ( outflow_r ) THEN
	1139	u_m_r(:,:,:) = u(:,:,nx-1:nx)
	1140	v_m_r(:,:,:) = v(:,:,nx-1:nx)
	1141	w_m_r(:,:,:) = w(:,:,nx-1:nx)
	1142	ENDIF
	1143	IF ( outflow_s ) THEN
	1144	u_m_s(:,:,:) = u(:,0:1,:)
	1145	v_m_s(:,:,:) = v(:,1:2,:)
	1146	w_m_s(:,:,:) = w(:,0:1,:)
	1147	ENDIF
	1148	IF ( outflow_n ) THEN
	1149	u_m_n(:,:,:) = u(:,ny-1:ny,:)
	1150	v_m_n(:,:,:) = v(:,ny-1:ny,:)
	1151	w_m_n(:,:,:) = w(:,ny-1:ny,:)
	1152	ENDIF
[667]	1153
[151]	1154	ENDIF
[680]	1155
[667]	1156	!
	1157	!-- Calculate the initial volume flow at the right and north boundary
[709]	1158	IF ( conserve_volume_flow ) THEN
[151]	1159
[767]	1160	IF ( use_prescribed_profile_data ) THEN
[667]	1161
[732]	1162	volume_flow_initial_l = 0.0
	1163	volume_flow_area_l = 0.0
	1164
[667]	1165	IF ( nxr == nx ) THEN
	1166	DO j = nys, nyn
[709]	1167	DO k = nzb_2d(j,nx)+1, nzt
[667]	1168	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[767]	1169	u_init(k) * dzw(k)
	1170	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1171	ENDDO
	1172	ENDDO
	1173	ENDIF
	1174
	1175	IF ( nyn == ny ) THEN
	1176	DO i = nxl, nxr
	1177	DO k = nzb_2d(ny,i)+1, nzt
	1178	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1179	v_init(k) * dzw(k)
	1180	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1181	ENDDO
	1182	ENDDO
	1183	ENDIF
	1184
	1185	#if defined( __parallel )
	1186	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1187	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1188	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1189	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1190
	1191	#else
	1192	volume_flow_initial = volume_flow_initial_l
	1193	volume_flow_area = volume_flow_area_l
	1194	#endif
	1195
	1196	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1197
	1198	volume_flow_initial_l = 0.0
	1199	volume_flow_area_l = 0.0
	1200
	1201	IF ( nxr == nx ) THEN
	1202	DO j = nys, nyn
	1203	DO k = nzb_2d(j,nx)+1, nzt
	1204	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[667]	1205	hom_sum(k,1,0) * dzw(k)
	1206	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1207	ENDDO
	1208	ENDDO
	1209	ENDIF
	1210
	1211	IF ( nyn == ny ) THEN
	1212	DO i = nxl, nxr
[709]	1213	DO k = nzb_2d(ny,i)+1, nzt
[667]	1214	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
[709]	1215	hom_sum(k,2,0) * dzw(k)
[667]	1216	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1217	ENDDO
	1218	ENDDO
	1219	ENDIF
	1220
[732]	1221	#if defined( __parallel )
	1222	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1223	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1224	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1225	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1226
	1227	#else
	1228	volume_flow_initial = volume_flow_initial_l
	1229	volume_flow_area = volume_flow_area_l
	1230	#endif
	1231
[667]	1232	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	1233
[732]	1234	volume_flow_initial_l = 0.0
	1235	volume_flow_area_l = 0.0
	1236
[667]	1237	IF ( nxr == nx ) THEN
	1238	DO j = nys, nyn
[709]	1239	DO k = nzb_2d(j,nx)+1, nzt
[667]	1240	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[709]	1241	u(k,j,nx) * dzw(k)
[667]	1242	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1243	ENDDO
	1244	ENDDO
	1245	ENDIF
	1246
	1247	IF ( nyn == ny ) THEN
	1248	DO i = nxl, nxr
[709]	1249	DO k = nzb_2d(ny,i)+1, nzt
[667]	1250	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1251	v(k,ny,i) * dzw(k)
	1252	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1253	ENDDO
	1254	ENDDO
	1255	ENDIF
	1256
	1257	#if defined( __parallel )
[732]	1258	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1259	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1260	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1261	2, MPI_REAL, MPI_SUM, comm2d, ierr )
[667]	1262
	1263	#else
[732]	1264	volume_flow_initial = volume_flow_initial_l
	1265	volume_flow_area = volume_flow_area_l
[667]	1266	#endif
	1267
[732]	1268	ENDIF
	1269
[151]	1270	!
[709]	1271	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
	1272	!-- from u\|v_bulk instead
[680]	1273	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
	1274	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
	1275	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
	1276	ENDIF
[667]	1277
[680]	1278	ENDIF
	1279
[787]	1280	!
	1281	!-- Initialize quantities for special advections schemes
	1282	CALL init_advec
[680]	1283
[667]	1284	!
[680]	1285	!-- Impose random perturbation on the horizontal velocity field and then
	1286	!-- remove the divergences from the velocity field at the initial stage
	1287	IF ( create_disturbances .AND. &
	1288	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
	1289	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
	1290
	1291	CALL disturb_field( nzb_u_inner, tend, u )
	1292	CALL disturb_field( nzb_v_inner, tend, v )
	1293	n_sor = nsor_ini
	1294	CALL pres
	1295	n_sor = nsor
	1296	ENDIF
	1297
	1298	!
[138]	1299	!-- Initialization of the leaf area density
[709]	1300	IF ( plant_canopy ) THEN
[138]	1301
	1302	SELECT CASE ( TRIM( canopy_mode ) )
	1303
	1304	CASE( 'block' )
	1305
[667]	1306	DO i = nxlg, nxrg
	1307	DO j = nysg, nyng
[138]	1308	lad_s(:,j,i) = lad(:)
	1309	cdc(:,j,i) = drag_coefficient
[709]	1310	IF ( passive_scalar ) THEN
[153]	1311	sls(:,j,i) = leaf_surface_concentration
	1312	sec(:,j,i) = scalar_exchange_coefficient
	1313	ENDIF
[138]	1314	ENDDO
	1315	ENDDO
	1316
	1317	CASE DEFAULT
	1318
	1319	!
	1320	!-- The DEFAULT case is reached either if the parameter
	1321	!-- canopy mode contains a wrong character string or if the
	1322	!-- user has coded a special case in the user interface.
	1323	!-- There, the subroutine user_init_plant_canopy checks
	1324	!-- which of these two conditions applies.
	1325	CALL user_init_plant_canopy
	1326
	1327	END SELECT
	1328
[667]	1329	CALL exchange_horiz( lad_s, nbgp )
	1330	CALL exchange_horiz( cdc, nbgp )
[138]	1331
[709]	1332	IF ( passive_scalar ) THEN
[667]	1333	CALL exchange_horiz( sls, nbgp )
	1334	CALL exchange_horiz( sec, nbgp )
[153]	1335	ENDIF
	1336
	1337	!
	1338	!-- Sharp boundaries of the plant canopy in horizontal directions
	1339	!-- In vertical direction the interpolation is retained, as the leaf
	1340	!-- area density is initialised by prescribing a vertical profile
	1341	!-- consisting of piecewise linear segments. The upper boundary
	1342	!-- of the plant canopy is now defined by lad_w(pch_index,:,:) = 0.0.
	1343
[138]	1344	DO i = nxl, nxr
	1345	DO j = nys, nyn
	1346	DO k = nzb, nzt+1
[709]	1347	IF ( lad_s(k,j,i) > 0.0 ) THEN
[153]	1348	lad_u(k,j,i) = lad_s(k,j,i)
	1349	lad_u(k,j,i+1) = lad_s(k,j,i)
	1350	lad_v(k,j,i) = lad_s(k,j,i)
	1351	lad_v(k,j+1,i) = lad_s(k,j,i)
	1352	ENDIF
[138]	1353	ENDDO
	1354	DO k = nzb, nzt
	1355	lad_w(k,j,i) = 0.5 * ( lad_s(k+1,j,i) + lad_s(k,j,i) )
	1356	ENDDO
	1357	ENDDO
	1358	ENDDO
	1359
[153]	1360	lad_w(pch_index,:,:) = 0.0
	1361	lad_w(nzt+1,:,:) = lad_w(nzt,:,:)
[138]	1362
[667]	1363	CALL exchange_horiz( lad_u, nbgp )
	1364	CALL exchange_horiz( lad_v, nbgp )
	1365	CALL exchange_horiz( lad_w, nbgp )
[153]	1366
	1367	!
	1368	!-- Initialisation of the canopy heat source distribution
[709]	1369	IF ( cthf /= 0.0 ) THEN
[153]	1370	!
	1371	!-- Piecewise evaluation of the leaf area index by
	1372	!-- integration of the leaf area density
	1373	lai(:,:,:) = 0.0
[667]	1374	DO i = nxlg, nxrg
	1375	DO j = nysg, nyng
[153]	1376	DO k = pch_index-1, 0, -1
	1377	lai(k,j,i) = lai(k+1,j,i) + &
	1378	( 0.5 * ( lad_w(k+1,j,i) + &
	1379	lad_s(k+1,j,i) ) * &
	1380	( zw(k+1) - zu(k+1) ) ) + &
	1381	( 0.5 * ( lad_w(k,j,i) + &
	1382	lad_s(k+1,j,i) ) * &
	1383	( zu(k+1) - zw(k) ) )
	1384	ENDDO
	1385	ENDDO
	1386	ENDDO
	1387
	1388	!
	1389	!-- Evaluation of the upward kinematic vertical heat flux within the
	1390	!-- canopy
[667]	1391	DO i = nxlg, nxrg
	1392	DO j = nysg, nyng
[153]	1393	DO k = 0, pch_index
	1394	canopy_heat_flux(k,j,i) = cthf * &
	1395	exp( -0.6 * lai(k,j,i) )
	1396	ENDDO
	1397	ENDDO
	1398	ENDDO
	1399
	1400	!
	1401	!-- The near surface heat flux is derived from the heat flux
	1402	!-- distribution within the canopy
	1403	shf(:,:) = canopy_heat_flux(0,:,:)
	1404
	1405	ENDIF
	1406
[138]	1407	ENDIF
	1408
	1409	!
[1]	1410	!-- If required, initialize dvrp-software
	1411	IF ( dt_dvrp /= 9999999.9 ) CALL init_dvrp
	1412
[96]	1413	IF ( ocean ) THEN
[1]	1414	!
[96]	1415	!-- Initialize quantities needed for the ocean model
	1416	CALL init_ocean
[388]	1417
[96]	1418	ELSE
	1419	!
	1420	!-- Initialize quantities for handling cloud physics
[849]	1421	!-- This routine must be called before lpm_init, because
[96]	1422	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
[849]	1423	!-- lpm_init) is not defined.
[96]	1424	CALL init_cloud_physics
	1425	ENDIF
[1]	1426
	1427	!
	1428	!-- If required, initialize particles
[849]	1429	IF ( particle_advection ) CALL lpm_init
[1]	1430
	1431	!
[673]	1432	!-- Initialize the ws-scheme.
	1433	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
[1]	1434
	1435	!
[709]	1436	!-- Setting weighting factors for calculation of perturbation pressure
	1437	!-- and turbulent quantities from the RK substeps
	1438	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
	1439
[713]	1440	weight_substep(1) = 1./6.
	1441	weight_substep(2) = 3./10.
	1442	weight_substep(3) = 8./15.
[709]	1443
[713]	1444	weight_pres(1) = 1./3.
	1445	weight_pres(2) = 5./12.
	1446	weight_pres(3) = 1./4.
[709]	1447
	1448	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
	1449
[713]	1450	weight_substep(1) = 1./2.
	1451	weight_substep(2) = 1./2.
[673]	1452
[713]	1453	weight_pres(1) = 1./2.
	1454	weight_pres(2) = 1./2.
[709]	1455
[1001]	1456	ELSE ! for Euler-method
[709]	1457
[673]	1458	weight_substep(1) = 1.0
[709]	1459	weight_pres(1) = 1.0
	1460
[673]	1461	ENDIF
	1462
	1463	!
[1]	1464	!-- Initialize Rayleigh damping factors
[785]	1465	rdf = 0.0
	1466	rdf_sc = 0.0
[1]	1467	IF ( rayleigh_damping_factor /= 0.0 ) THEN
[108]	1468	IF ( .NOT. ocean ) THEN
	1469	DO k = nzb+1, nzt
	1470	IF ( zu(k) >= rayleigh_damping_height ) THEN
	1471	rdf(k) = rayleigh_damping_factor * &
[1]	1472	( SIN( pi * 0.5 * ( zu(k) - rayleigh_damping_height ) &
	1473	/ ( zu(nzt) - rayleigh_damping_height ) )&
	1474	)**2
[108]	1475	ENDIF
	1476	ENDDO
	1477	ELSE
	1478	DO k = nzt, nzb+1, -1
	1479	IF ( zu(k) <= rayleigh_damping_height ) THEN
	1480	rdf(k) = rayleigh_damping_factor * &
	1481	( SIN( pi * 0.5 * ( rayleigh_damping_height - zu(k) ) &
	1482	/ ( rayleigh_damping_height - zu(nzb+1)))&
	1483	)**2
	1484	ENDIF
	1485	ENDDO
	1486	ENDIF
[1]	1487	ENDIF
[785]	1488	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
[1]	1489
	1490	!
[240]	1491	!-- Initialize the starting level and the vertical smoothing factor used for
	1492	!-- the external pressure gradient
	1493	dp_smooth_factor = 1.0
	1494	IF ( dp_external ) THEN
	1495	!
	1496	!-- Set the starting level dp_level_ind_b only if it has not been set before
	1497	!-- (e.g. in init_grid).
	1498	IF ( dp_level_ind_b == 0 ) THEN
	1499	ind_array = MINLOC( ABS( dp_level_b - zu ) )
	1500	dp_level_ind_b = ind_array(1) - 1 + nzb
	1501	! MINLOC uses lower array bound 1
	1502	ENDIF
	1503	IF ( dp_smooth ) THEN
	1504	dp_smooth_factor(:dp_level_ind_b) = 0.0
	1505	DO k = dp_level_ind_b+1, nzt
	1506	dp_smooth_factor(k) = 0.5 * ( 1.0 + SIN( pi * &
	1507	( REAL( k - dp_level_ind_b ) / &
	1508	REAL( nzt - dp_level_ind_b ) - 0.5 ) ) )
	1509	ENDDO
	1510	ENDIF
	1511	ENDIF
	1512
	1513	!
[978]	1514	!-- Initialize damping zone for the potential temperature in case of
	1515	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
	1516	!-- at the inflow boundary and decreases to zero at pt_damping_width.
	1517	ptdf_x = 0.0
	1518	ptdf_y = 0.0
[996]	1519	IF ( bc_lr_dirrad .OR. bc_lr_dirneu ) THEN
	1520	DO i = nxl, nxr
[978]	1521	IF ( ( i * dx ) < pt_damping_width ) THEN
	1522	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5 * &
	1523	REAL( pt_damping_width - i * dx ) / ( &
	1524	REAL( pt_damping_width ) ) ) )**2
[73]	1525	ENDIF
	1526	ENDDO
[996]	1527	ELSEIF ( bc_lr_raddir .OR. bc_lr_neudir ) THEN
	1528	DO i = nxl, nxr
[978]	1529	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
[996]	1530	ptdf_x(i) = pt_damping_factor * &
	1531	SIN( pi * 0.5 * ( ( i - nx ) * dx + pt_damping_width ) / &
	1532	REAL( pt_damping_width ) )**2
[73]	1533	ENDIF
[978]	1534	ENDDO
[996]	1535	ELSEIF ( bc_ns_dirrad .OR. bc_ns_dirneu ) THEN
	1536	DO j = nys, nyn
[978]	1537	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
[996]	1538	ptdf_y(j) = pt_damping_factor * &
	1539	SIN( pi * 0.5 * ( ( j - ny ) * dy + pt_damping_width ) / &
	1540	REAL( pt_damping_width ) )**2
[1]	1541	ENDIF
[978]	1542	ENDDO
[996]	1543	ELSEIF ( bc_ns_raddir .OR. bc_ns_neudir ) THEN
	1544	DO j = nys, nyn
[978]	1545	IF ( ( j * dy ) < pt_damping_width ) THEN
[996]	1546	ptdf_y(j) = pt_damping_factor * &
	1547	SIN( pi * 0.5 * ( pt_damping_width - j * dy ) / &
	1548	REAL( pt_damping_width ) )**2
[1]	1549	ENDIF
[73]	1550	ENDDO
[1]	1551	ENDIF
	1552
	1553	!
[709]	1554	!-- Initialize local summation arrays for routine flow_statistics.
	1555	!-- This is necessary because they may not yet have been initialized when they
	1556	!-- are called from flow_statistics (or - depending on the chosen model run -
	1557	!-- are never initialized)
[1]	1558	sums_divnew_l = 0.0
	1559	sums_divold_l = 0.0
	1560	sums_l_l = 0.0
	1561	sums_up_fraction_l = 0.0
	1562	sums_wsts_bc_l = 0.0
	1563
	1564	!
	1565	!-- Pre-set masks for regional statistics. Default is the total model domain.
[1015]	1566	!-- Ghost points are excluded because counting values at the ghost boundaries
	1567	!-- would bias the statistics
[1]	1568	rmask = 1.0
[1025]	1569	rmask(:,nxlg:nxl-1,:) = 0.0; rmask(:,nxr+1:nxrg,:) = 0.0
	1570	rmask(nysg:nys-1,:,:) = 0.0; rmask(nyn+1:nyng,:,:) = 0.0
[1]	1571
	1572	!
[51]	1573	!-- User-defined initializing actions. Check afterwards, if maximum number
[709]	1574	!-- of allowed timeseries is exceeded
[1]	1575	CALL user_init
	1576
[51]	1577	IF ( dots_num > dots_max ) THEN
[254]	1578	WRITE( message_string, * ) 'number of time series quantities exceeds', &
[274]	1579	' its maximum of dots_max = ', dots_max, &
[254]	1580	' &Please increase dots_max in modules.f90.'
	1581	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
[51]	1582	ENDIF
	1583
[1]	1584	!
	1585	!-- Input binary data file is not needed anymore. This line must be placed
	1586	!-- after call of user_init!
	1587	CALL close_file( 13 )
	1588
	1589	!
	1590	!-- Compute total sum of active mask grid points
	1591	!-- ngp_2dh: number of grid points of a horizontal cross section through the
	1592	!-- total domain
	1593	!-- ngp_3d: number of grid points of the total domain
[132]	1594	ngp_2dh_outer_l = 0
	1595	ngp_2dh_outer = 0
	1596	ngp_2dh_s_inner_l = 0
	1597	ngp_2dh_s_inner = 0
	1598	ngp_2dh_l = 0
	1599	ngp_2dh = 0
[485]	1600	ngp_3d_inner_l = 0.0
[132]	1601	ngp_3d_inner = 0
	1602	ngp_3d = 0
	1603	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
[1]	1604
	1605	DO sr = 0, statistic_regions
	1606	DO i = nxl, nxr
	1607	DO j = nys, nyn
	1608	IF ( rmask(j,i,sr) == 1.0 ) THEN
	1609	!
	1610	!-- All xy-grid points
	1611	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1612	!
	1613	!-- xy-grid points above topography
	1614	DO k = nzb_s_outer(j,i), nz + 1
	1615	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
	1616	ENDDO
[132]	1617	DO k = nzb_s_inner(j,i), nz + 1
	1618	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
	1619	ENDDO
[1]	1620	!
	1621	!-- All grid points of the total domain above topography
	1622	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
	1623	( nz - nzb_s_inner(j,i) + 2 )
	1624	ENDIF
	1625	ENDDO
	1626	ENDDO
	1627	ENDDO
	1628
	1629	sr = statistic_regions + 1
	1630	#if defined( __parallel )
[622]	1631	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1632	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
[1]	1633	comm2d, ierr )
[622]	1634	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1635	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
[1]	1636	MPI_INTEGER, MPI_SUM, comm2d, ierr )
[622]	1637	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1638	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
[132]	1639	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
[622]	1640	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1641	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
[1]	1642	MPI_SUM, comm2d, ierr )
[485]	1643	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
[1]	1644	#else
[132]	1645	ngp_2dh = ngp_2dh_l
	1646	ngp_2dh_outer = ngp_2dh_outer_l
	1647	ngp_2dh_s_inner = ngp_2dh_s_inner_l
[485]	1648	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
[1]	1649	#endif
	1650
[560]	1651	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
	1652	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
[1]	1653
	1654	!
	1655	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
	1656	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
	1657	!-- the respective subdomain lie below the surface topography
[667]	1658	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
[631]	1659	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
	1660	ngp_3d_inner(:) )
[667]	1661	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
[1]	1662
[485]	1663	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, ngp_3d_inner_tmp )
[1]	1664
	1665
	1666	END SUBROUTINE init_3d_model

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