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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1295

Last change on this file since 1295 was 1242, checked in by heinze, 11 years ago
Last commmit documented
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File size: 66.3 KB

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[1]	1	#if defined( __ibmy_special )
	2	@PROCESS NOOPTimize
	3	#endif
	4	SUBROUTINE init_3d_model
	5
[1036]	6	!--------------------------------------------------------------------------------!
	7	! This file is part of PALM.
	8	!
	9	! PALM is free software: you can redistribute it and/or modify it under the terms
	10	! of the GNU General Public License as published by the Free Software Foundation,
	11	! either version 3 of the License, or (at your option) any later version.
	12	!
	13	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
	14	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
	15	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
	16	!
	17	! You should have received a copy of the GNU General Public License along with
	18	! PALM. If not, see <http://www.gnu.org/licenses/>.
	19	!
	20	! Copyright 1997-2012 Leibniz University Hannover
	21	!--------------------------------------------------------------------------------!
	22	!
[254]	23	! Current revisions:
[732]	24	! ------------------
[1054]	25	!
[1242]	26	!
[1054]	27	! Former revisions:
	28	! -----------------
	29	! $Id: init_3d_model.f90 1242 2013-10-30 11:50:11Z raasch $
	30	!
[1242]	31	! 1241 2013-10-30 11:36:58Z heinze
	32	! Overwrite initial profiles in case of nudging
	33	! Inititialize shf and qsws in case of large_scale_forcing
	34	!
[1222]	35	! 1221 2013-09-10 08:59:13Z raasch
	36	! +rflags_s_inner in copyin statement, use copyin for most arrays instead of
	37	! copy
	38	!
[1213]	39	! 1212 2013-08-15 08:46:27Z raasch
	40	! array tri is allocated and included in data copy statement
	41	!
[1196]	42	! 1195 2013-07-01 12:27:57Z heinze
	43	! Bugfix: move allocation of ref_state to parin.f90 and read_var_list.f90
	44	!
[1182]	45	! 1179 2013-06-14 05:57:58Z raasch
	46	! allocate and set ref_state to be used in buoyancy terms
	47	!
[1172]	48	! 1171 2013-05-30 11:27:45Z raasch
	49	! diss array is allocated with full size if accelerator boards are used
	50	!
[1160]	51	! 1159 2013-05-21 11:58:22Z fricke
	52	! -bc_lr_dirneu, bc_lr_neudir, bc_ns_dirneu, bc_ns_neudir
	53	!
[1154]	54	! 1153 2013-05-10 14:33:08Z raasch
	55	! diss array is allocated with dummy elements even if it is not needed
[1171]	56	! (required by PGI 13.4 / CUDA 5.0)
[1154]	57	!
[1116]	58	! 1115 2013-03-26 18:16:16Z hoffmann
	59	! unused variables removed
	60	!
[1114]	61	! 1113 2013-03-10 02:48:14Z raasch
	62	! openACC directive modified
	63	!
[1112]	64	! 1111 2013-03-08 23:54:10Z raasch
	65	! openACC directives added for pres
	66	! array diss allocated only if required
	67	!
[1093]	68	! 1092 2013-02-02 11:24:22Z raasch
	69	! unused variables removed
	70	!
[1066]	71	! 1065 2012-11-22 17:42:36Z hoffmann
	72	! allocation of diss (dissipation rate) in case of turbulence = .TRUE. added
	73	!
[1054]	74	! 1053 2012-11-13 17:11:03Z hoffmann
[1053]	75	! allocation and initialisation of necessary data arrays for the two-moment
	76	! cloud physics scheme the two new prognostic equations (nr, qr):
	77	! +dr, lambda_r, mu_r, sed_, xr, s, sws, swst, , _p, t_m, _1, _2, _3,
	78	! +tend_*, prr
[979]	79	!
[1037]	80	! 1036 2012-10-22 13:43:42Z raasch
	81	! code put under GPL (PALM 3.9)
	82	!
[1033]	83	! 1032 2012-10-21 13:03:21Z letzel
	84	! save memory by not allocating pt_2 in case of neutral = .T.
	85	!
[1026]	86	! 1025 2012-10-07 16:04:41Z letzel
	87	! bugfix: swap indices of mask for ghost boundaries
	88	!
[1017]	89	! 1015 2012-09-27 09:23:24Z raasch
	90	! mask is set to zero for ghost boundaries
	91	!
[1011]	92	! 1010 2012-09-20 07:59:54Z raasch
	93	! cpp switch __nopointer added for pointer free version
	94	!
[1004]	95	! 1003 2012-09-14 14:35:53Z raasch
	96	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
	97	!
[1002]	98	! 1001 2012-09-13 14:08:46Z raasch
	99	! all actions concerning leapfrog scheme removed
	100	!
[997]	101	! 996 2012-09-07 10:41:47Z raasch
	102	! little reformatting
	103	!
[979]	104	! 978 2012-08-09 08:28:32Z fricke
[978]	105	! outflow damping layer removed
	106	! roughness length for scalar quantites z0h added
	107	! damping zone for the potential temperatur in case of non-cyclic lateral
	108	! boundaries added
	109	! initialization of ptdf_x, ptdf_y
	110	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
[708]	111	!
[850]	112	! 849 2012-03-15 10:35:09Z raasch
	113	! init_particles renamed lpm_init
	114	!
[826]	115	! 825 2012-02-19 03:03:44Z raasch
	116	! wang_collision_kernel renamed wang_kernel
	117	!
[791]	118	! 790 2011-11-29 03:11:20Z raasch
	119	! diss is also allocated in case that the Wang kernel is used
	120	!
[788]	121	! 787 2011-11-28 12:49:05Z heinze $
	122	! bugfix: call init_advec in every case - not only for inital runs
	123	!
[786]	124	! 785 2011-11-28 09:47:19Z raasch
	125	! initialization of rdf_sc
	126	!
[768]	127	! 767 2011-10-14 06:39:12Z raasch
	128	! adjustments concerning implementation of prescribed u,v-profiles
	129	! bugfix: dirichlet_0 conditions for ug/vg moved to check_parameters
	130	!
[760]	131	! 759 2011-09-15 13:58:31Z raasch
	132	! Splitting of parallel I/O in blocks of PEs
	133	! Bugfix: No zero assignments to volume_flow_initial and volume_flow_area in
	134	! case of normal restart runs.
	135	!
[714]	136	! 713 2011-03-30 14:21:21Z suehring
[732]	137	! weight_substep and weight_pres are given as fractions.
[714]	138	!
[710]	139	! 709 2011-03-30 09:31:40Z raasch
	140	! formatting adjustments
	141	!
[708]	142	! 707 2011-03-29 11:39:40Z raasch
[707]	143	! p_sub renamed p_loc and allocated depending on the chosen pressure solver,
	144	! initial assignments of zero to array p for iterative solvers only,
	145	! bc_lr/ns replaced by bc_lr/ns_dirrad/raddir
[674]	146	!
[708]	147	! 680 2011-02-04 23:16:06Z gryschka
[681]	148	! bugfix: volume_flow_control
[668]	149	!
[674]	150	! 673 2011-01-18 16:19:48Z suehring
	151	! weight_substep (moved from advec_ws) and weight_pres added.
	152	! Allocate p_sub when using Multigrid or SOR solver.
	153	! Call of ws_init moved behind the if requests.
	154	!
[668]	155	! 667 2010-12-23 12:06:00Z suehring/gryschka
[667]	156	! nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng in loops and
	157	! allocation of arrays. Calls of exchange_horiz are modified.
[709]	158	! Call ws_init to initialize arrays needed for calculating statisticas and for
[667]	159	! optimization when ws-scheme is used.
	160	! Initial volume flow is now calculated by using the variable hom_sum.
	161	! Therefore the correction of initial volume flow for non-flat topography
	162	! removed (removed u_nzb_p1_for_vfc and v_nzb_p1_for_vfc)
	163	! Changed surface boundary conditions for u and v in case of ibc_uv_b == 0 from
[709]	164	! mirror to Dirichlet boundary conditions (u=v=0), so that k=nzb is
	165	! representative for the height z0.
[667]	166	! Bugfix: type conversion of '1' to 64bit for the MAX function (ngp_3d_inner)
	167	!
[623]	168	! 622 2010-12-10 08:08:13Z raasch
	169	! optional barriers included in order to speed up collective operations
	170	!
[561]	171	! 560 2010-09-09 10:06:09Z weinreis
	172	! bugfix: correction of calculating ngp_3d for 64 bit
	173	!
[486]	174	! 485 2010-02-05 10:57:51Z raasch
	175	! calculation of ngp_3d + ngp_3d_inner changed because they have now 64 bit
	176	!
[482]	177	! 407 2009-12-01 15:01:15Z maronga
	178	! var_ts is replaced by dots_max
	179	! Enabled passive scalar/humidity wall fluxes for non-flat topography
	180	!
[392]	181	! 388 2009-09-23 09:40:33Z raasch
[388]	182	! Initialization of prho added.
[359]	183	! bugfix: correction of initial volume flow for non-flat topography
	184	! bugfix: zero initialization of arrays within buildings for 'cyclic_fill'
[333]	185	! bugfix: avoid that ngp_2dh_s_inner becomes zero
[328]	186	! initializing_actions='read_data_for_recycling' renamed to 'cyclic_fill', now
	187	! independent of turbulent_inflow
[254]	188	! Output of messages replaced by message handling routine.
[240]	189	! Set the starting level and the vertical smoothing factor used for
	190	! the external pressure gradient
[254]	191	! +conserve_volume_flow_mode: 'default', 'initial_profiles', 'inflow_profile'
[241]	192	! and 'bulk_velocity'
[292]	193	! If the inversion height calculated by the prerun is zero,
	194	! inflow_damping_height must be explicitly specified.
[139]	195	!
[198]	196	! 181 2008-07-30 07:07:47Z raasch
	197	! bugfix: zero assignments to tendency arrays in case of restarts,
	198	! further extensions and modifications in the initialisation of the plant
	199	! canopy model,
	200	! allocation of hom_sum moved to parin, initialization of spectrum_x\|y directly
	201	! after allocating theses arrays,
	202	! read data for recycling added as new initialization option,
	203	! dummy allocation for diss
	204	!
[139]	205	! 138 2007-11-28 10:03:58Z letzel
[132]	206	! New counter ngp_2dh_s_inner.
	207	! Allow new case bc_uv_t = 'dirichlet_0' for channel flow.
	208	! Corrected calculation of initial volume flow for 'set_1d-model_profiles' and
	209	! 'set_constant_profiles' in case of buildings in the reference cross-sections.
[77]	210	!
[110]	211	! 108 2007-08-24 15:10:38Z letzel
	212	! Flux initialization in case of coupled runs, +momentum fluxes at top boundary,
	213	! +arrays for phase speed c_u, c_v, c_w, indices for u\|v\|w_m_l\|r changed
	214	! +qswst_remote in case of atmosphere model with humidity coupled to ocean
	215	! Rayleigh damping for ocean, optionally calculate km and kh from initial
	216	! TKE e_init
	217	!
[98]	218	! 97 2007-06-21 08:23:15Z raasch
	219	! Initialization of salinity, call of init_ocean
	220	!
[90]	221	! 87 2007-05-22 15:46:47Z raasch
	222	! var_hom and var_sum renamed pr_palm
	223	!
[77]	224	! 75 2007-03-22 09:54:05Z raasch
[73]	225	! Arrays for radiation boundary conditions are allocated (u_m_l, u_m_r, etc.),
	226	! bugfix for cases with the outflow damping layer extending over more than one
[75]	227	! subdomain, moisture renamed humidity,
	228	! new initializing action "by_user" calls user_init_3d_model,
[72]	229	! precipitation_amount/rate, ts_value are allocated, +module netcdf_control,
[51]	230	! initial velocities at nzb+1 are regarded for volume
	231	! flow control in case they have been set zero before (to avoid small timesteps)
[75]	232	! -uvmean_outflow, uxrp, vynp eliminated
[1]	233	!
[39]	234	! 19 2007-02-23 04:53:48Z raasch
	235	! +handling of top fluxes
	236	!
[3]	237	! RCS Log replace by Id keyword, revision history cleaned up
	238	!
[1]	239	! Revision 1.49 2006/08/22 15:59:07 raasch
	240	! No optimization of this file on the ibmy (Yonsei Univ.)
	241	!
	242	! Revision 1.1 1998/03/09 16:22:22 raasch
	243	! Initial revision
	244	!
	245	!
	246	! Description:
	247	! ------------
	248	! Allocation of arrays and initialization of the 3D model via
	249	! a) pre-run the 1D model
	250	! or
	251	! b) pre-set constant linear profiles
	252	! or
	253	! c) read values of a previous run
	254	!------------------------------------------------------------------------------!
	255
[667]	256	USE advec_ws
[1]	257	USE arrays_3d
	258	USE averaging
[72]	259	USE cloud_parameters
[1]	260	USE constants
	261	USE control_parameters
	262	USE cpulog
[978]	263	USE grid_variables
[1]	264	USE indices
	265	USE interfaces
[1241]	266	USE ls_forcing_mod
[1]	267	USE model_1d
[51]	268	USE netcdf_control
[1]	269	USE particle_attributes
	270	USE pegrid
	271	USE profil_parameter
	272	USE random_function_mod
	273	USE statistics
[1111]	274	USE transpose_indices
[1]	275
	276	IMPLICIT NONE
	277
[559]	278	INTEGER :: i, ind_array(1), j, k, sr
[1]	279
[485]	280	INTEGER, DIMENSION(:), ALLOCATABLE :: ngp_2dh_l
[1]	281
[132]	282	INTEGER, DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l, &
[996]	283	ngp_2dh_s_inner_l
[1]	284
	285	REAL, DIMENSION(1:2) :: volume_flow_area_l, volume_flow_initial_l
	286
[485]	287	REAL, DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l, ngp_3d_inner_tmp
[1]	288
[485]	289
[1]	290	!
	291	!-- Allocate arrays
	292	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
	293	ngp_3d(0:statistic_regions), &
	294	ngp_3d_inner(0:statistic_regions), &
	295	ngp_3d_inner_l(0:statistic_regions), &
[485]	296	ngp_3d_inner_tmp(0:statistic_regions), &
[1]	297	sums_divnew_l(0:statistic_regions), &
	298	sums_divold_l(0:statistic_regions) )
[1195]	299	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
[143]	300	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
[1]	301	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
[132]	302	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
	303	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
[996]	304	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
[87]	305	sums(nzb:nzt+1,pr_palm+max_pr_user), &
	306	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
[1]	307	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
	308	sums_up_fraction_l(10,3,0:statistic_regions), &
[48]	309	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
[394]	310	ts_value(dots_max,0:statistic_regions) )
[978]	311	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
[1]	312
[1001]	313	ALLOCATE( rif(nysg:nyng,nxlg:nxrg), shf(nysg:nyng,nxlg:nxrg), &
	314	ts(nysg:nyng,nxlg:nxrg), tswst(nysg:nyng,nxlg:nxrg), &
	315	us(nysg:nyng,nxlg:nxrg), usws(nysg:nyng,nxlg:nxrg), &
	316	uswst(nysg:nyng,nxlg:nxrg), vsws(nysg:nyng,nxlg:nxrg), &
	317	vswst(nysg:nyng,nxlg:nxrg), z0(nysg:nyng,nxlg:nxrg), &
[978]	318	z0h(nysg:nyng,nxlg:nxrg) )
[1]	319
[1010]	320	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
	321	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	322	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	323	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	324	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	325
	326	#if defined( __nopointer )
	327	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	328	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	329	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	330	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	331	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	332	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	333	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	334	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	335	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	336	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	337	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	338	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	339	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	340	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	341	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	342	#else
	343	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	344	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	345	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	346	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	347	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	348	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	349	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	350	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	351	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	352	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	353	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	354	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	355	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	356	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1032]	357	IF ( .NOT. neutral ) THEN
	358	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	359	ENDIF
[1010]	360	#endif
	361
[673]	362	!
[707]	363	!-- Following array is required for perturbation pressure within the iterative
	364	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
	365	!-- the weighted average of the substeps and cannot be used in the Poisson
	366	!-- solver.
	367	IF ( psolver == 'sor' ) THEN
	368	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	369	ELSEIF ( psolver == 'multigrid' ) THEN
	370	!
	371	!-- For performance reasons, multigrid is using one ghost layer only
	372	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[673]	373	ENDIF
[1]	374
[1111]	375	!
	376	!-- Array for storing constant coeffficients of the tridiagonal solver
	377	IF ( psolver == 'poisfft' ) THEN
[1212]	378	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
[1111]	379	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
	380	ENDIF
	381
[75]	382	IF ( humidity .OR. passive_scalar ) THEN
[1]	383	!
[75]	384	!-- 2D-humidity/scalar arrays
[1001]	385	ALLOCATE ( qs(nysg:nyng,nxlg:nxrg), &
	386	qsws(nysg:nyng,nxlg:nxrg), &
	387	qswst(nysg:nyng,nxlg:nxrg) )
[1]	388
	389	!
[75]	390	!-- 3D-humidity/scalar arrays
[1010]	391	#if defined( __nopointer )
	392	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	393	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	394	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	395	#else
[667]	396	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	397	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	398	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	399	#endif
[1]	400
	401	!
[75]	402	!-- 3D-arrays needed for humidity only
	403	IF ( humidity ) THEN
[1010]	404	#if defined( __nopointer )
	405	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	406	#else
[667]	407	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	408	#endif
[1]	409
	410	IF ( cloud_physics ) THEN
[1053]	411
[1]	412	!
	413	!-- Liquid water content
[1010]	414	#if defined( __nopointer )
	415	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	416	#else
[667]	417	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	418	#endif
[72]	419	!
	420	!-- Precipitation amount and rate (only needed if output is switched)
[667]	421	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
	422	precipitation_rate(nysg:nyng,nxlg:nxrg) )
[1053]	423
	424	IF ( icloud_scheme == 0 ) THEN
	425	!
[1115]	426	!-- 1D-arrays
	427	ALLOCATE ( nc_1d(nzb:nzt+1), pt_1d(nzb:nzt+1), &
	428	q_1d(nzb:nzt+1), qc_1d(nzb:nzt+1) )
[1053]	429	!
[1115]	430	!-- 3D-cloud water content
[1053]	431	#if defined( __nopointer )
[1115]	432	ALLOCATE( qc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1053]	433	#else
[1115]	434	ALLOCATE( qc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1053]	435	#endif
	436	!
	437	!-- 3D-tendency arrays
[1115]	438	ALLOCATE( tend_pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	439	tend_q(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	440
	441	IF ( precipitation ) THEN
[1053]	442	!
[1115]	443	!-- 1D-arrays
	444	ALLOCATE ( nr_1d(nzb:nzt+1), qr_1d(nzb:nzt+1) )
	445	!
	446	!
	447	!-- 3D-tendency arrays
	448	ALLOCATE( tend_nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	449	tend_qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	450	!
	451	!-- 2D-rain water content and rain drop concentration arrays
	452	ALLOCATE ( qrs(nysg:nyng,nxlg:nxrg), &
	453	qrsws(nysg:nyng,nxlg:nxrg), &
	454	qrswst(nysg:nyng,nxlg:nxrg), &
	455	nrs(nysg:nyng,nxlg:nxrg), &
	456	nrsws(nysg:nyng,nxlg:nxrg), &
	457	nrswst(nysg:nyng,nxlg:nxrg) )
	458	!
	459	!-- 3D-rain water content, rain drop concentration arrays
	460	#if defined( __nopointer )
	461	ALLOCATE( nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	462	nr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	463	qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	464	qr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	465	tnr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	466	tqr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	467	#else
	468	ALLOCATE( nr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	469	nr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	470	nr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	471	qr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	472	qr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	473	qr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	474	#endif
	475	!
	476	!-- 3d-precipitation rate
[1053]	477	ALLOCATE( prr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	478	ENDIF
	479
	480	ENDIF
[1]	481	ENDIF
	482
	483	IF ( cloud_droplets ) THEN
	484	!
[1010]	485	!-- Liquid water content, change in liquid water content
	486	#if defined( __nopointer )
	487	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	488	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	489	#else
[667]	490	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1010]	491	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	492	#endif
	493	!
	494	!-- Real volume of particles (with weighting), volume of particles
	495	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	496	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1]	497	ENDIF
	498
	499	ENDIF
	500
	501	ENDIF
	502
[94]	503	IF ( ocean ) THEN
[1001]	504	ALLOCATE( saswsb(nysg:nyng,nxlg:nxrg), &
	505	saswst(nysg:nyng,nxlg:nxrg) )
[1010]	506	#if defined( __nopointer )
	507	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	508	rho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	509	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	510	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	511	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	512	#else
[667]	513	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	514	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	515	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	516	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	517	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[388]	518	prho => prho_1
	519	rho => rho_1 ! routines calc_mean_profile and diffusion_e require
	520	! density to be apointer
[1010]	521	#endif
[108]	522	IF ( humidity_remote ) THEN
[667]	523	ALLOCATE( qswst_remote(nysg:nyng,nxlg:nxrg))
[108]	524	qswst_remote = 0.0
	525	ENDIF
[94]	526	ENDIF
	527
[1]	528	!
	529	!-- 3D-array for storing the dissipation, needed for calculating the sgs
	530	!-- particle velocities
[1171]	531	IF ( use_sgs_for_particles .OR. wang_kernel .OR. turbulence .OR. &
	532	num_acc_per_node > 0 ) THEN
[1153]	533	ALLOCATE( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1]	534	ENDIF
	535
	536	IF ( dt_dosp /= 9999999.9 ) THEN
	537	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
	538	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
[146]	539	spectrum_x = 0.0
	540	spectrum_y = 0.0
[1]	541	ENDIF
	542
	543	!
[138]	544	!-- 3D-arrays for the leaf area density and the canopy drag coefficient
	545	IF ( plant_canopy ) THEN
[667]	546	ALLOCATE ( lad_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	547	lad_u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	548	lad_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	549	lad_w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	550	cdc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[153]	551
	552	IF ( passive_scalar ) THEN
[996]	553	ALLOCATE ( sls(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	554	sec(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[153]	555	ENDIF
	556
	557	IF ( cthf /= 0.0 ) THEN
[996]	558	ALLOCATE ( lai(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	559	canopy_heat_flux(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[153]	560	ENDIF
	561
[138]	562	ENDIF
	563
	564	!
[51]	565	!-- 4D-array for storing the Rif-values at vertical walls
	566	IF ( topography /= 'flat' ) THEN
[667]	567	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
[51]	568	rif_wall = 0.0
	569	ENDIF
	570
	571	!
[106]	572	!-- Arrays to store velocity data from t-dt and the phase speeds which
	573	!-- are needed for radiation boundary conditions
[73]	574	IF ( outflow_l ) THEN
[667]	575	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
	576	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
	577	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
[73]	578	ENDIF
	579	IF ( outflow_r ) THEN
[667]	580	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	581	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	582	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
[73]	583	ENDIF
[106]	584	IF ( outflow_l .OR. outflow_r ) THEN
[667]	585	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
	586	c_w(nzb:nzt+1,nysg:nyng) )
[106]	587	ENDIF
[73]	588	IF ( outflow_s ) THEN
[667]	589	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
	590	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
	591	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
[73]	592	ENDIF
	593	IF ( outflow_n ) THEN
[667]	594	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	595	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	596	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
[73]	597	ENDIF
[106]	598	IF ( outflow_s .OR. outflow_n ) THEN
[667]	599	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
	600	c_w(nzb:nzt+1,nxlg:nxrg) )
[106]	601	ENDIF
[996]	602	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
[978]	603	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
	604	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
	605	ENDIF
[73]	606
[978]	607
[1010]	608	#if ! defined( __nopointer )
[73]	609	!
[1]	610	!-- Initial assignment of the pointers
[1001]	611	e => e_1; e_p => e_2; te_m => e_3
[1032]	612	IF ( .NOT. neutral ) THEN
	613	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
	614	ELSE
	615	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
	616	ENDIF
[1001]	617	u => u_1; u_p => u_2; tu_m => u_3
	618	v => v_1; v_p => v_2; tv_m => v_3
	619	w => w_1; w_p => w_2; tw_m => w_3
[1]	620
[1001]	621	IF ( humidity .OR. passive_scalar ) THEN
	622	q => q_1; q_p => q_2; tq_m => q_3
[1053]	623	IF ( humidity ) THEN
	624	vpt => vpt_1
	625	IF ( cloud_physics ) THEN
	626	ql => ql_1
	627	IF ( icloud_scheme == 0 ) THEN
[1115]	628	qc => qc_1
	629	IF ( precipitation ) THEN
	630	qr => qr_1; qr_p => qr_2; tqr_m => qr_3
	631	nr => nr_1; nr_p => nr_2; tnr_m => nr_3
	632	ENDIF
[1053]	633	ENDIF
	634	ENDIF
	635	ENDIF
[1001]	636	IF ( cloud_droplets ) THEN
	637	ql => ql_1
	638	ql_c => ql_2
[1]	639	ENDIF
[1001]	640	ENDIF
[1]	641
[1001]	642	IF ( ocean ) THEN
	643	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
	644	ENDIF
[1010]	645	#endif
[1]	646
	647	!
[709]	648	!-- Allocate arrays containing the RK coefficient for calculation of
	649	!-- perturbation pressure and turbulent fluxes. At this point values are
	650	!-- set for pressure calculation during initialization (where no timestep
	651	!-- is done). Further below the values needed within the timestep scheme
	652	!-- will be set.
	653	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
[673]	654	weight_pres(1:intermediate_timestep_count_max) )
[709]	655	weight_substep = 1.0
	656	weight_pres = 1.0
	657	intermediate_timestep_count = 1 ! needed when simulated_time = 0.0
[673]	658
	659	!
[1]	660	!-- Initialize model variables
[147]	661	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[328]	662	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[1]	663	!
	664	!-- First model run of a possible job queue.
	665	!-- Initial profiles of the variables must be computes.
	666	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
	667	!
	668	!-- Use solutions of the 1D model as initial profiles,
	669	!-- start 1D model
	670	CALL init_1d_model
	671	!
	672	!-- Transfer initial profiles to the arrays of the 3D model
[667]	673	DO i = nxlg, nxrg
	674	DO j = nysg, nyng
[1]	675	e(:,j,i) = e1d
	676	kh(:,j,i) = kh1d
	677	km(:,j,i) = km1d
	678	pt(:,j,i) = pt_init
	679	u(:,j,i) = u1d
	680	v(:,j,i) = v1d
	681	ENDDO
	682	ENDDO
	683
[75]	684	IF ( humidity .OR. passive_scalar ) THEN
[667]	685	DO i = nxlg, nxrg
	686	DO j = nysg, nyng
[1]	687	q(:,j,i) = q_init
	688	ENDDO
	689	ENDDO
[1115]	690	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	691	precipitation ) THEN
[1053]	692	DO i = nxlg, nxrg
	693	DO j = nysg, nyng
[1115]	694	qr(:,j,i) = 0.0
	695	nr(:,j,i) = 0.0
[1053]	696	ENDDO
	697	ENDDO
[1115]	698	!
	699	!-- Initialze nc_1d with default value
	700	nc_1d(:) = nc_const
	701
[1053]	702	ENDIF
[1]	703	ENDIF
	704
	705	IF ( .NOT. constant_diffusion ) THEN
[667]	706	DO i = nxlg, nxrg
	707	DO j = nysg, nyng
[1]	708	e(:,j,i) = e1d
	709	ENDDO
	710	ENDDO
	711	!
	712	!-- Store initial profiles for output purposes etc.
	713	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	714
	715	IF ( prandtl_layer ) THEN
	716	rif = rif1d(nzb+1)
	717	ts = 0.0 ! could actually be computed more accurately in the
	718	! 1D model. Update when opportunity arises.
	719	us = us1d
	720	usws = usws1d
	721	vsws = vsws1d
	722	ELSE
	723	ts = 0.0 ! must be set, because used in
	724	rif = 0.0 ! flowste
	725	us = 0.0
	726	usws = 0.0
	727	vsws = 0.0
	728	ENDIF
	729
	730	ELSE
	731	e = 0.0 ! must be set, because used in
	732	rif = 0.0 ! flowste
	733	ts = 0.0
	734	us = 0.0
	735	usws = 0.0
	736	vsws = 0.0
	737	ENDIF
[102]	738	uswst = top_momentumflux_u
	739	vswst = top_momentumflux_v
[1]	740
	741	!
	742	!-- In every case qs = 0.0 (see also pt)
	743	!-- This could actually be computed more accurately in the 1D model.
	744	!-- Update when opportunity arises!
[1053]	745	IF ( humidity .OR. passive_scalar ) THEN
	746	qs = 0.0
[1115]	747	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	748	precipitation ) THEN
[1053]	749	qrs = 0.0
	750	nrs = 0.0
	751	ENDIF
	752	ENDIF
[1]	753
	754	!
	755	!-- inside buildings set velocities back to zero
	756	IF ( topography /= 'flat' ) THEN
	757	DO i = nxl-1, nxr+1
	758	DO j = nys-1, nyn+1
	759	u(nzb:nzb_u_inner(j,i),j,i) = 0.0
	760	v(nzb:nzb_v_inner(j,i),j,i) = 0.0
	761	ENDDO
	762	ENDDO
[667]	763
[1]	764	!
	765	!-- WARNING: The extra boundary conditions set after running the
	766	!-- ------- 1D model impose an error on the divergence one layer
	767	!-- below the topography; need to correct later
	768	!-- ATTENTION: Provisional correction for Piacsek & Williams
	769	!-- --------- advection scheme: keep u and v zero one layer below
	770	!-- the topography.
[667]	771	IF ( ibc_uv_b == 1 ) THEN
	772	!
[1]	773	!-- Neumann condition
	774	DO i = nxl-1, nxr+1
	775	DO j = nys-1, nyn+1
	776	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
	777	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
	778	ENDDO
	779	ENDDO
	780
	781	ENDIF
	782
	783	ENDIF
	784
	785	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
	786	THEN
[1241]	787
[1]	788	!
[1241]	789	!-- Overwrite initial profiles in case of nudging
	790	IF ( nudging ) THEN
	791	pt_init = ptnudge(:,1)
	792	u_init = unudge(:,1)
	793	v_init = vnudge(:,1)
	794	IF ( humidity .OR. passive_scalar ) THEN
	795	q_init = qnudge(:,1)
	796	ENDIF
	797
	798	WRITE( message_string, * ) 'Initial profiles of u, v and ', &
	799	'scalars from NUDGING_DATA are used.'
	800	CALL message( 'init_3d_model', 'PA0370', 0, 0, 0, 6, 0 )
	801	ENDIF
	802
	803	!
[1]	804	!-- Use constructed initial profiles (velocity constant with height,
	805	!-- temperature profile with constant gradient)
[667]	806	DO i = nxlg, nxrg
	807	DO j = nysg, nyng
[1]	808	pt(:,j,i) = pt_init
	809	u(:,j,i) = u_init
	810	v(:,j,i) = v_init
	811	ENDDO
	812	ENDDO
[75]	813
[1]	814	!
[292]	815	!-- Set initial horizontal velocities at the lowest computational grid
	816	!-- levels to zero in order to avoid too small time steps caused by the
	817	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
	818	!-- in the limiting formula!). The original values are stored to be later
	819	!-- used for volume flow control.
[667]	820	DO i = nxlg, nxrg
	821	DO j = nysg, nyng
[1]	822	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0
	823	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0
	824	ENDDO
	825	ENDDO
	826
[75]	827	IF ( humidity .OR. passive_scalar ) THEN
[667]	828	DO i = nxlg, nxrg
	829	DO j = nysg, nyng
[1]	830	q(:,j,i) = q_init
	831	ENDDO
	832	ENDDO
[1115]	833	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	834	!
	835	!-- Initialze nc_1d with default value
	836	nc_1d(:) = nc_const
	837
	838	IF ( precipitation ) THEN
	839	DO i = nxlg, nxrg
	840	DO j = nysg, nyng
	841	qr(:,j,i) = 0.0
	842	nr(:,j,i) = 0.0
	843	ENDDO
[1053]	844	ENDDO
[1115]	845	ENDIF
	846
[1053]	847	ENDIF
[1]	848	ENDIF
	849
[94]	850	IF ( ocean ) THEN
[667]	851	DO i = nxlg, nxrg
	852	DO j = nysg, nyng
[94]	853	sa(:,j,i) = sa_init
	854	ENDDO
	855	ENDDO
	856	ENDIF
[1]	857
	858	IF ( constant_diffusion ) THEN
	859	km = km_constant
	860	kh = km / prandtl_number
[108]	861	e = 0.0
	862	ELSEIF ( e_init > 0.0 ) THEN
	863	DO k = nzb+1, nzt
	864	km(k,:,:) = 0.1 * l_grid(k) * SQRT( e_init )
	865	ENDDO
	866	km(nzb,:,:) = km(nzb+1,:,:)
	867	km(nzt+1,:,:) = km(nzt,:,:)
	868	kh = km / prandtl_number
	869	e = e_init
[1]	870	ELSE
[108]	871	IF ( .NOT. ocean ) THEN
	872	kh = 0.01 ! there must exist an initial diffusion, because
	873	km = 0.01 ! otherwise no TKE would be produced by the
	874	! production terms, as long as not yet
	875	! e = (u/cm)*2 at k=nzb+1
	876	ELSE
	877	kh = 0.00001
	878	km = 0.00001
	879	ENDIF
	880	e = 0.0
[1]	881	ENDIF
[102]	882	rif = 0.0
	883	ts = 0.0
	884	us = 0.0
	885	usws = 0.0
	886	uswst = top_momentumflux_u
	887	vsws = 0.0
	888	vswst = top_momentumflux_v
[75]	889	IF ( humidity .OR. passive_scalar ) qs = 0.0
[1]	890
	891	!
	892	!-- Compute initial temperature field and other constants used in case
	893	!-- of a sloping surface
	894	IF ( sloping_surface ) CALL init_slope
	895
[46]	896	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
	897	THEN
	898	!
	899	!-- Initialization will completely be done by the user
	900	CALL user_init_3d_model
	901
[1]	902	ENDIF
[667]	903	!
	904	!-- Bottom boundary
	905	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
	906	u(nzb,:,:) = 0.0
	907	v(nzb,:,:) = 0.0
	908	ENDIF
[1]	909
	910	!
[151]	911	!-- Apply channel flow boundary condition
[132]	912	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
	913	u(nzt+1,:,:) = 0.0
	914	v(nzt+1,:,:) = 0.0
	915	ENDIF
	916
	917	!
[1]	918	!-- Calculate virtual potential temperature
[75]	919	IF ( humidity ) vpt = pt * ( 1.0 + 0.61 * q )
[1]	920
	921	!
	922	!-- Store initial profiles for output purposes etc.
	923	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	924	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
[667]	925	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
	926	hom(nzb,1,5,:) = 0.0
	927	hom(nzb,1,6,:) = 0.0
[1]	928	ENDIF
	929	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	930	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
	931	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
	932
[97]	933	IF ( ocean ) THEN
	934	!
	935	!-- Store initial salinity profile
	936	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
	937	ENDIF
[1]	938
[75]	939	IF ( humidity ) THEN
[1]	940	!
	941	!-- Store initial profile of total water content, virtual potential
	942	!-- temperature
	943	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	944	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
	945	IF ( cloud_physics .OR. cloud_droplets ) THEN
	946	!
	947	!-- Store initial profile of specific humidity and potential
	948	!-- temperature
	949	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	950	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	951	ENDIF
	952	ENDIF
	953
	954	IF ( passive_scalar ) THEN
	955	!
	956	!-- Store initial scalar profile
	957	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	958	ENDIF
	959
	960	!
[19]	961	!-- Initialize fluxes at bottom surface
[1]	962	IF ( use_surface_fluxes ) THEN
	963
	964	IF ( constant_heatflux ) THEN
	965	!
	966	!-- Heat flux is prescribed
	967	IF ( random_heatflux ) THEN
	968	CALL disturb_heatflux
	969	ELSE
	970	shf = surface_heatflux
	971	!
[1241]	972	!-- Initialize shf with data from external file LSF_DATA
	973	IF ( large_scale_forcing .AND. lsf_surf ) THEN
	974	CALL ls_forcing_surf ( simulated_time )
	975	ENDIF
	976
	977	!
[1]	978	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
	979	IF ( TRIM( topography ) /= 'flat' ) THEN
[667]	980	DO i = nxlg, nxrg
	981	DO j = nysg, nyng
[1]	982	IF ( nzb_s_inner(j,i) /= 0 ) THEN
	983	shf(j,i) = wall_heatflux(0)
	984	ENDIF
	985	ENDDO
	986	ENDDO
	987	ENDIF
	988	ENDIF
	989	ENDIF
	990
	991	!
	992	!-- Determine the near-surface water flux
[75]	993	IF ( humidity .OR. passive_scalar ) THEN
[1115]	994	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	995	precipitation ) THEN
	996	qrsws = 0.0
	997	nrsws = 0.0
[1053]	998	ENDIF
[1]	999	IF ( constant_waterflux ) THEN
	1000	qsws = surface_waterflux
[407]	1001	!
	1002	!-- Over topography surface_waterflux is replaced by
	1003	!-- wall_humidityflux(0)
	1004	IF ( TRIM( topography ) /= 'flat' ) THEN
	1005	wall_qflux = wall_humidityflux
[667]	1006	DO i = nxlg, nxrg
	1007	DO j = nysg, nyng
[407]	1008	IF ( nzb_s_inner(j,i) /= 0 ) THEN
	1009	qsws(j,i) = wall_qflux(0)
	1010	ENDIF
	1011	ENDDO
	1012	ENDDO
	1013	ENDIF
[1]	1014	ENDIF
	1015	ENDIF
	1016
	1017	ENDIF
	1018
	1019	!
[19]	1020	!-- Initialize fluxes at top surface
[94]	1021	!-- Currently, only the heatflux and salinity flux can be prescribed.
	1022	!-- The latent flux is zero in this case!
[19]	1023	IF ( use_top_fluxes ) THEN
	1024
	1025	IF ( constant_top_heatflux ) THEN
	1026	!
	1027	!-- Heat flux is prescribed
	1028	tswst = top_heatflux
	1029
[1053]	1030	IF ( humidity .OR. passive_scalar ) THEN
	1031	qswst = 0.0
[1115]	1032	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1033	precipitation ) THEN
[1053]	1034	nrswst = 0.0
	1035	qrswst = 0.0
	1036	ENDIF
	1037	ENDIF
[94]	1038
	1039	IF ( ocean ) THEN
[95]	1040	saswsb = bottom_salinityflux
[94]	1041	saswst = top_salinityflux
	1042	ENDIF
[102]	1043	ENDIF
[19]	1044
[102]	1045	!
	1046	!-- Initialization in case of a coupled model run
	1047	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
	1048	tswst = 0.0
	1049	ENDIF
	1050
[19]	1051	ENDIF
	1052
	1053	!
[1]	1054	!-- Initialize Prandtl layer quantities
	1055	IF ( prandtl_layer ) THEN
	1056
	1057	z0 = roughness_length
[978]	1058	z0h = z0h_factor * z0
[1]	1059
	1060	IF ( .NOT. constant_heatflux ) THEN
	1061	!
	1062	!-- Surface temperature is prescribed. Here the heat flux cannot be
	1063	!-- simply estimated, because therefore rif, u* and theta* would have
	1064	!-- to be computed by iteration. This is why the heat flux is assumed
	1065	!-- to be zero before the first time step. It approaches its correct
	1066	!-- value in the course of the first few time steps.
	1067	shf = 0.0
	1068	ENDIF
	1069
[75]	1070	IF ( humidity .OR. passive_scalar ) THEN
[1001]	1071	IF ( .NOT. constant_waterflux ) qsws = 0.0
[1115]	1072	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1073	precipitation ) THEN
	1074	qrsws = 0.0
	1075	nrsws = 0.0
[1053]	1076	ENDIF
[1]	1077	ENDIF
	1078
	1079	ENDIF
	1080
[1179]	1081	!
	1082	!-- Set the reference state to be used in the buoyancy terms (for ocean runs
	1083	!-- the reference state will be set (overwritten) in init_ocean)
	1084	IF ( use_single_reference_value ) THEN
	1085	IF ( .NOT. humidity ) THEN
	1086	ref_state(:) = pt_reference
	1087	ELSE
	1088	ref_state(:) = vpt_reference
	1089	ENDIF
	1090	ELSE
	1091	IF ( .NOT. humidity ) THEN
	1092	ref_state(:) = pt_init(:)
	1093	ELSE
	1094	ref_state(:) = vpt(:,nys,nxl)
	1095	ENDIF
	1096	ENDIF
[152]	1097
	1098	!
[707]	1099	!-- For the moment, vertical velocity is zero
	1100	w = 0.0
[1]	1101
	1102	!
	1103	!-- Initialize array sums (must be defined in first call of pres)
	1104	sums = 0.0
	1105
	1106	!
[707]	1107	!-- In case of iterative solvers, p must get an initial value
	1108	IF ( psolver == 'multigrid' .OR. psolver == 'sor' ) p = 0.0
	1109
	1110	!
[72]	1111	!-- Treating cloud physics, liquid water content and precipitation amount
	1112	!-- are zero at beginning of the simulation
	1113	IF ( cloud_physics ) THEN
	1114	ql = 0.0
	1115	IF ( precipitation ) precipitation_amount = 0.0
[1115]	1116	IF ( icloud_scheme == 0 ) THEN
	1117	qc = 0.0
	1118	nc_1d = nc_const
	1119	ENDIF
[72]	1120	ENDIF
[673]	1121	!
[1]	1122	!-- Impose vortex with vertical axis on the initial velocity profile
	1123	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	1124	CALL init_rankine
	1125	ENDIF
	1126
	1127	!
	1128	!-- Impose temperature anomaly (advection test only)
	1129	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
	1130	CALL init_pt_anomaly
	1131	ENDIF
	1132
	1133	!
	1134	!-- If required, change the surface temperature at the start of the 3D run
	1135	IF ( pt_surface_initial_change /= 0.0 ) THEN
	1136	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	1137	ENDIF
	1138
	1139	!
	1140	!-- If required, change the surface humidity/scalar at the start of the 3D
	1141	!-- run
[75]	1142	IF ( ( humidity .OR. passive_scalar ) .AND. &
[1]	1143	q_surface_initial_change /= 0.0 ) THEN
	1144	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
	1145	ENDIF
	1146	!
	1147	!-- Initialize the random number generator (from numerical recipes)
	1148	CALL random_function_ini
	1149
	1150	!
	1151	!-- Initialize old and new time levels.
[1001]	1152	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
[1]	1153	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
	1154
[75]	1155	IF ( humidity .OR. passive_scalar ) THEN
[1001]	1156	tq_m = 0.0
[1]	1157	q_p = q
[1115]	1158	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1159	precipitation ) THEN
[1053]	1160	tqr_m = 0.0
	1161	qr_p = qr
	1162	tnr_m = 0.0
	1163	nr_p = nr
	1164	ENDIF
[1]	1165	ENDIF
	1166
[94]	1167	IF ( ocean ) THEN
	1168	tsa_m = 0.0
	1169	sa_p = sa
	1170	ENDIF
[667]	1171
[94]	1172
[147]	1173	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
[667]	1174	TRIM( initializing_actions ) == 'cyclic_fill' ) &
[1]	1175	THEN
	1176	!
[767]	1177	!-- When reading data for cyclic fill of 3D prerun data files, read
	1178	!-- some of the global variables from the restart file which are required
	1179	!-- for initializing the inflow
[328]	1180	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[559]	1181
[759]	1182	DO i = 0, io_blocks-1
	1183	IF ( i == io_group ) THEN
	1184	CALL read_parts_of_var_list
	1185	CALL close_file( 13 )
	1186	ENDIF
	1187	#if defined( __parallel )
	1188	CALL MPI_BARRIER( comm2d, ierr )
	1189	#endif
	1190	ENDDO
[328]	1191
[767]	1192	ENDIF
	1193
[151]	1194	!
[767]	1195	!-- Read binary data from restart file
	1196	DO i = 0, io_blocks-1
	1197	IF ( i == io_group ) THEN
	1198	CALL read_3d_binary
	1199	ENDIF
	1200	#if defined( __parallel )
	1201	CALL MPI_BARRIER( comm2d, ierr )
	1202	#endif
	1203	ENDDO
	1204
[328]	1205	!
[767]	1206	!-- Initialization of the turbulence recycling method
	1207	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
	1208	turbulent_inflow ) THEN
	1209	!
	1210	!-- First store the profiles to be used at the inflow.
	1211	!-- These profiles are the (temporally) and horizontally averaged vertical
	1212	!-- profiles from the prerun. Alternatively, prescribed profiles
	1213	!-- for u,v-components can be used.
	1214	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,5) )
[151]	1215
[767]	1216	IF ( use_prescribed_profile_data ) THEN
	1217	mean_inflow_profiles(:,1) = u_init ! u
	1218	mean_inflow_profiles(:,2) = v_init ! v
	1219	ELSE
[328]	1220	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
	1221	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
[767]	1222	ENDIF
	1223	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
	1224	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
[151]	1225
	1226	!
[767]	1227	!-- If necessary, adjust the horizontal flow field to the prescribed
	1228	!-- profiles
	1229	IF ( use_prescribed_profile_data ) THEN
	1230	DO i = nxlg, nxrg
[667]	1231	DO j = nysg, nyng
[328]	1232	DO k = nzb, nzt+1
[767]	1233	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
	1234	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
[328]	1235	ENDDO
[151]	1236	ENDDO
[767]	1237	ENDDO
	1238	ENDIF
[151]	1239
	1240	!
[767]	1241	!-- Use these mean profiles at the inflow (provided that Dirichlet
	1242	!-- conditions are used)
	1243	IF ( inflow_l ) THEN
	1244	DO j = nysg, nyng
	1245	DO k = nzb, nzt+1
	1246	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
	1247	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
	1248	w(k,j,nxlg:-1) = 0.0
	1249	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
	1250	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
	1251	ENDDO
	1252	ENDDO
	1253	ENDIF
	1254
[151]	1255	!
[767]	1256	!-- Calculate the damping factors to be used at the inflow. For a
	1257	!-- turbulent inflow the turbulent fluctuations have to be limited
	1258	!-- vertically because otherwise the turbulent inflow layer will grow
	1259	!-- in time.
	1260	IF ( inflow_damping_height == 9999999.9 ) THEN
	1261	!
	1262	!-- Default: use the inversion height calculated by the prerun; if
	1263	!-- this is zero, inflow_damping_height must be explicitly
	1264	!-- specified.
	1265	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0 ) THEN
	1266	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
	1267	ELSE
	1268	WRITE( message_string, * ) 'inflow_damping_height must be ',&
	1269	'explicitly specified because&the inversion height ', &
	1270	'calculated by the prerun is zero.'
	1271	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
[292]	1272	ENDIF
[151]	1273
[767]	1274	ENDIF
	1275
	1276	IF ( inflow_damping_width == 9999999.9 ) THEN
[151]	1277	!
[767]	1278	!-- Default for the transition range: one tenth of the undamped
	1279	!-- layer
	1280	inflow_damping_width = 0.1 * inflow_damping_height
[151]	1281
[767]	1282	ENDIF
[151]	1283
[767]	1284	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
[151]	1285
[767]	1286	DO k = nzb, nzt+1
[151]	1287
[767]	1288	IF ( zu(k) <= inflow_damping_height ) THEN
	1289	inflow_damping_factor(k) = 1.0
[996]	1290	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
	1291	inflow_damping_factor(k) = 1.0 - &
	1292	( zu(k) - inflow_damping_height ) / &
	1293	inflow_damping_width
[767]	1294	ELSE
	1295	inflow_damping_factor(k) = 0.0
	1296	ENDIF
[151]	1297
[767]	1298	ENDDO
[151]	1299
[147]	1300	ENDIF
	1301
[152]	1302	!
[359]	1303	!-- Inside buildings set velocities and TKE back to zero
	1304	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
	1305	topography /= 'flat' ) THEN
	1306	!
	1307	!-- Inside buildings set velocities and TKE back to zero.
	1308	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
	1309	!-- maybe revise later.
[1001]	1310	DO i = nxlg, nxrg
	1311	DO j = nysg, nyng
	1312	u (nzb:nzb_u_inner(j,i),j,i) = 0.0
	1313	v (nzb:nzb_v_inner(j,i),j,i) = 0.0
	1314	w (nzb:nzb_w_inner(j,i),j,i) = 0.0
	1315	e (nzb:nzb_w_inner(j,i),j,i) = 0.0
	1316	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0
	1317	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0
	1318	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
	1319	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
	1320	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0
[359]	1321	ENDDO
[1001]	1322	ENDDO
[359]	1323
	1324	ENDIF
	1325
	1326	!
[1]	1327	!-- Calculate initial temperature field and other constants used in case
	1328	!-- of a sloping surface
	1329	IF ( sloping_surface ) CALL init_slope
	1330
	1331	!
	1332	!-- Initialize new time levels (only done in order to set boundary values
	1333	!-- including ghost points)
	1334	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
[1053]	1335	IF ( humidity .OR. passive_scalar ) THEN
	1336	q_p = q
[1115]	1337	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1338	precipitation ) THEN
[1053]	1339	qr_p = qr
	1340	nr_p = nr
	1341	ENDIF
	1342	ENDIF
[94]	1343	IF ( ocean ) sa_p = sa
[1]	1344
[181]	1345	!
	1346	!-- Allthough tendency arrays are set in prognostic_equations, they have
	1347	!-- have to be predefined here because they are used (but multiplied with 0)
	1348	!-- there before they are set.
[1001]	1349	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
[1053]	1350	IF ( humidity .OR. passive_scalar ) THEN
	1351	tq_m = 0.0
[1115]	1352	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1353	precipitation ) THEN
[1053]	1354	tqr_m = 0.0
	1355	tnr_m = 0.0
	1356	ENDIF
	1357	ENDIF
[1001]	1358	IF ( ocean ) tsa_m = 0.0
[181]	1359
[1]	1360	ELSE
	1361	!
	1362	!-- Actually this part of the programm should not be reached
[254]	1363	message_string = 'unknown initializing problem'
	1364	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
[1]	1365	ENDIF
	1366
[151]	1367
	1368	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
[1]	1369	!
[151]	1370	!-- Initialize old timelevels needed for radiation boundary conditions
	1371	IF ( outflow_l ) THEN
	1372	u_m_l(:,:,:) = u(:,:,1:2)
	1373	v_m_l(:,:,:) = v(:,:,0:1)
	1374	w_m_l(:,:,:) = w(:,:,0:1)
	1375	ENDIF
	1376	IF ( outflow_r ) THEN
	1377	u_m_r(:,:,:) = u(:,:,nx-1:nx)
	1378	v_m_r(:,:,:) = v(:,:,nx-1:nx)
	1379	w_m_r(:,:,:) = w(:,:,nx-1:nx)
	1380	ENDIF
	1381	IF ( outflow_s ) THEN
	1382	u_m_s(:,:,:) = u(:,0:1,:)
	1383	v_m_s(:,:,:) = v(:,1:2,:)
	1384	w_m_s(:,:,:) = w(:,0:1,:)
	1385	ENDIF
	1386	IF ( outflow_n ) THEN
	1387	u_m_n(:,:,:) = u(:,ny-1:ny,:)
	1388	v_m_n(:,:,:) = v(:,ny-1:ny,:)
	1389	w_m_n(:,:,:) = w(:,ny-1:ny,:)
	1390	ENDIF
[667]	1391
[151]	1392	ENDIF
[680]	1393
[667]	1394	!
	1395	!-- Calculate the initial volume flow at the right and north boundary
[709]	1396	IF ( conserve_volume_flow ) THEN
[151]	1397
[767]	1398	IF ( use_prescribed_profile_data ) THEN
[667]	1399
[732]	1400	volume_flow_initial_l = 0.0
	1401	volume_flow_area_l = 0.0
	1402
[667]	1403	IF ( nxr == nx ) THEN
	1404	DO j = nys, nyn
[709]	1405	DO k = nzb_2d(j,nx)+1, nzt
[667]	1406	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[767]	1407	u_init(k) * dzw(k)
	1408	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1409	ENDDO
	1410	ENDDO
	1411	ENDIF
	1412
	1413	IF ( nyn == ny ) THEN
	1414	DO i = nxl, nxr
	1415	DO k = nzb_2d(ny,i)+1, nzt
	1416	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1417	v_init(k) * dzw(k)
	1418	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1419	ENDDO
	1420	ENDDO
	1421	ENDIF
	1422
	1423	#if defined( __parallel )
	1424	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1425	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1426	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1427	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1428
	1429	#else
	1430	volume_flow_initial = volume_flow_initial_l
	1431	volume_flow_area = volume_flow_area_l
	1432	#endif
	1433
	1434	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1435
	1436	volume_flow_initial_l = 0.0
	1437	volume_flow_area_l = 0.0
	1438
	1439	IF ( nxr == nx ) THEN
	1440	DO j = nys, nyn
	1441	DO k = nzb_2d(j,nx)+1, nzt
	1442	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[667]	1443	hom_sum(k,1,0) * dzw(k)
	1444	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1445	ENDDO
	1446	ENDDO
	1447	ENDIF
	1448
	1449	IF ( nyn == ny ) THEN
	1450	DO i = nxl, nxr
[709]	1451	DO k = nzb_2d(ny,i)+1, nzt
[667]	1452	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
[709]	1453	hom_sum(k,2,0) * dzw(k)
[667]	1454	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1455	ENDDO
	1456	ENDDO
	1457	ENDIF
	1458
[732]	1459	#if defined( __parallel )
	1460	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1461	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1462	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1463	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1464
	1465	#else
	1466	volume_flow_initial = volume_flow_initial_l
	1467	volume_flow_area = volume_flow_area_l
	1468	#endif
	1469
[667]	1470	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	1471
[732]	1472	volume_flow_initial_l = 0.0
	1473	volume_flow_area_l = 0.0
	1474
[667]	1475	IF ( nxr == nx ) THEN
	1476	DO j = nys, nyn
[709]	1477	DO k = nzb_2d(j,nx)+1, nzt
[667]	1478	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[709]	1479	u(k,j,nx) * dzw(k)
[667]	1480	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1481	ENDDO
	1482	ENDDO
	1483	ENDIF
	1484
	1485	IF ( nyn == ny ) THEN
	1486	DO i = nxl, nxr
[709]	1487	DO k = nzb_2d(ny,i)+1, nzt
[667]	1488	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1489	v(k,ny,i) * dzw(k)
	1490	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1491	ENDDO
	1492	ENDDO
	1493	ENDIF
	1494
	1495	#if defined( __parallel )
[732]	1496	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1497	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1498	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1499	2, MPI_REAL, MPI_SUM, comm2d, ierr )
[667]	1500
	1501	#else
[732]	1502	volume_flow_initial = volume_flow_initial_l
	1503	volume_flow_area = volume_flow_area_l
[667]	1504	#endif
	1505
[732]	1506	ENDIF
	1507
[151]	1508	!
[709]	1509	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
	1510	!-- from u\|v_bulk instead
[680]	1511	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
	1512	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
	1513	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
	1514	ENDIF
[667]	1515
[680]	1516	ENDIF
	1517
[787]	1518	!
	1519	!-- Initialize quantities for special advections schemes
	1520	CALL init_advec
[680]	1521
[667]	1522	!
[680]	1523	!-- Impose random perturbation on the horizontal velocity field and then
	1524	!-- remove the divergences from the velocity field at the initial stage
	1525	IF ( create_disturbances .AND. &
	1526	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
	1527	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
	1528
	1529	CALL disturb_field( nzb_u_inner, tend, u )
	1530	CALL disturb_field( nzb_v_inner, tend, v )
	1531	n_sor = nsor_ini
[1221]	1532	!$acc data copyin( d, ddzu, ddzw, nzb_s_inner, nzb_u_inner ) &
	1533	!$acc copyin( nzb_v_inner, nzb_w_inner, p, rflags_s_inner, tend ) &
	1534	!$acc copyin( weight_pres, weight_substep ) &
	1535	!$acc copy( tri, tric, u, v, w )
[680]	1536	CALL pres
[1111]	1537	!$acc end data
[680]	1538	n_sor = nsor
	1539	ENDIF
	1540
	1541	!
[138]	1542	!-- Initialization of the leaf area density
[709]	1543	IF ( plant_canopy ) THEN
[138]	1544
	1545	SELECT CASE ( TRIM( canopy_mode ) )
	1546
	1547	CASE( 'block' )
	1548
[667]	1549	DO i = nxlg, nxrg
	1550	DO j = nysg, nyng
[138]	1551	lad_s(:,j,i) = lad(:)
	1552	cdc(:,j,i) = drag_coefficient
[709]	1553	IF ( passive_scalar ) THEN
[153]	1554	sls(:,j,i) = leaf_surface_concentration
	1555	sec(:,j,i) = scalar_exchange_coefficient
	1556	ENDIF
[138]	1557	ENDDO
	1558	ENDDO
	1559
	1560	CASE DEFAULT
	1561
	1562	!
	1563	!-- The DEFAULT case is reached either if the parameter
	1564	!-- canopy mode contains a wrong character string or if the
	1565	!-- user has coded a special case in the user interface.
	1566	!-- There, the subroutine user_init_plant_canopy checks
	1567	!-- which of these two conditions applies.
	1568	CALL user_init_plant_canopy
	1569
	1570	END SELECT
	1571
[667]	1572	CALL exchange_horiz( lad_s, nbgp )
	1573	CALL exchange_horiz( cdc, nbgp )
[138]	1574
[709]	1575	IF ( passive_scalar ) THEN
[667]	1576	CALL exchange_horiz( sls, nbgp )
	1577	CALL exchange_horiz( sec, nbgp )
[153]	1578	ENDIF
	1579
	1580	!
	1581	!-- Sharp boundaries of the plant canopy in horizontal directions
	1582	!-- In vertical direction the interpolation is retained, as the leaf
	1583	!-- area density is initialised by prescribing a vertical profile
	1584	!-- consisting of piecewise linear segments. The upper boundary
	1585	!-- of the plant canopy is now defined by lad_w(pch_index,:,:) = 0.0.
	1586
[138]	1587	DO i = nxl, nxr
	1588	DO j = nys, nyn
	1589	DO k = nzb, nzt+1
[709]	1590	IF ( lad_s(k,j,i) > 0.0 ) THEN
[153]	1591	lad_u(k,j,i) = lad_s(k,j,i)
	1592	lad_u(k,j,i+1) = lad_s(k,j,i)
	1593	lad_v(k,j,i) = lad_s(k,j,i)
	1594	lad_v(k,j+1,i) = lad_s(k,j,i)
	1595	ENDIF
[138]	1596	ENDDO
	1597	DO k = nzb, nzt
	1598	lad_w(k,j,i) = 0.5 * ( lad_s(k+1,j,i) + lad_s(k,j,i) )
	1599	ENDDO
	1600	ENDDO
	1601	ENDDO
	1602
[153]	1603	lad_w(pch_index,:,:) = 0.0
	1604	lad_w(nzt+1,:,:) = lad_w(nzt,:,:)
[138]	1605
[667]	1606	CALL exchange_horiz( lad_u, nbgp )
	1607	CALL exchange_horiz( lad_v, nbgp )
	1608	CALL exchange_horiz( lad_w, nbgp )
[153]	1609
	1610	!
	1611	!-- Initialisation of the canopy heat source distribution
[709]	1612	IF ( cthf /= 0.0 ) THEN
[153]	1613	!
	1614	!-- Piecewise evaluation of the leaf area index by
	1615	!-- integration of the leaf area density
	1616	lai(:,:,:) = 0.0
[667]	1617	DO i = nxlg, nxrg
	1618	DO j = nysg, nyng
[153]	1619	DO k = pch_index-1, 0, -1
	1620	lai(k,j,i) = lai(k+1,j,i) + &
	1621	( 0.5 * ( lad_w(k+1,j,i) + &
	1622	lad_s(k+1,j,i) ) * &
	1623	( zw(k+1) - zu(k+1) ) ) + &
	1624	( 0.5 * ( lad_w(k,j,i) + &
	1625	lad_s(k+1,j,i) ) * &
	1626	( zu(k+1) - zw(k) ) )
	1627	ENDDO
	1628	ENDDO
	1629	ENDDO
	1630
	1631	!
	1632	!-- Evaluation of the upward kinematic vertical heat flux within the
	1633	!-- canopy
[667]	1634	DO i = nxlg, nxrg
	1635	DO j = nysg, nyng
[153]	1636	DO k = 0, pch_index
	1637	canopy_heat_flux(k,j,i) = cthf * &
	1638	exp( -0.6 * lai(k,j,i) )
	1639	ENDDO
	1640	ENDDO
	1641	ENDDO
	1642
	1643	!
	1644	!-- The near surface heat flux is derived from the heat flux
	1645	!-- distribution within the canopy
	1646	shf(:,:) = canopy_heat_flux(0,:,:)
	1647
	1648	ENDIF
	1649
[138]	1650	ENDIF
	1651
	1652	!
[1]	1653	!-- If required, initialize dvrp-software
	1654	IF ( dt_dvrp /= 9999999.9 ) CALL init_dvrp
	1655
[96]	1656	IF ( ocean ) THEN
[1]	1657	!
[96]	1658	!-- Initialize quantities needed for the ocean model
	1659	CALL init_ocean
[388]	1660
[96]	1661	ELSE
	1662	!
	1663	!-- Initialize quantities for handling cloud physics
[849]	1664	!-- This routine must be called before lpm_init, because
[96]	1665	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
[849]	1666	!-- lpm_init) is not defined.
[96]	1667	CALL init_cloud_physics
	1668	ENDIF
[1]	1669
	1670	!
	1671	!-- If required, initialize particles
[849]	1672	IF ( particle_advection ) CALL lpm_init
[1]	1673
	1674	!
[673]	1675	!-- Initialize the ws-scheme.
	1676	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
[1]	1677
	1678	!
[709]	1679	!-- Setting weighting factors for calculation of perturbation pressure
	1680	!-- and turbulent quantities from the RK substeps
	1681	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
	1682
[713]	1683	weight_substep(1) = 1./6.
	1684	weight_substep(2) = 3./10.
	1685	weight_substep(3) = 8./15.
[709]	1686
[713]	1687	weight_pres(1) = 1./3.
	1688	weight_pres(2) = 5./12.
	1689	weight_pres(3) = 1./4.
[709]	1690
	1691	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
	1692
[713]	1693	weight_substep(1) = 1./2.
	1694	weight_substep(2) = 1./2.
[673]	1695
[713]	1696	weight_pres(1) = 1./2.
	1697	weight_pres(2) = 1./2.
[709]	1698
[1001]	1699	ELSE ! for Euler-method
[709]	1700
[673]	1701	weight_substep(1) = 1.0
[709]	1702	weight_pres(1) = 1.0
	1703
[673]	1704	ENDIF
	1705
	1706	!
[1]	1707	!-- Initialize Rayleigh damping factors
[785]	1708	rdf = 0.0
	1709	rdf_sc = 0.0
[1]	1710	IF ( rayleigh_damping_factor /= 0.0 ) THEN
[108]	1711	IF ( .NOT. ocean ) THEN
	1712	DO k = nzb+1, nzt
	1713	IF ( zu(k) >= rayleigh_damping_height ) THEN
	1714	rdf(k) = rayleigh_damping_factor * &
[1]	1715	( SIN( pi * 0.5 * ( zu(k) - rayleigh_damping_height ) &
	1716	/ ( zu(nzt) - rayleigh_damping_height ) )&
	1717	)**2
[108]	1718	ENDIF
	1719	ENDDO
	1720	ELSE
	1721	DO k = nzt, nzb+1, -1
	1722	IF ( zu(k) <= rayleigh_damping_height ) THEN
	1723	rdf(k) = rayleigh_damping_factor * &
	1724	( SIN( pi * 0.5 * ( rayleigh_damping_height - zu(k) ) &
	1725	/ ( rayleigh_damping_height - zu(nzb+1)))&
	1726	)**2
	1727	ENDIF
	1728	ENDDO
	1729	ENDIF
[1]	1730	ENDIF
[785]	1731	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
[1]	1732
	1733	!
[240]	1734	!-- Initialize the starting level and the vertical smoothing factor used for
	1735	!-- the external pressure gradient
	1736	dp_smooth_factor = 1.0
	1737	IF ( dp_external ) THEN
	1738	!
	1739	!-- Set the starting level dp_level_ind_b only if it has not been set before
	1740	!-- (e.g. in init_grid).
	1741	IF ( dp_level_ind_b == 0 ) THEN
	1742	ind_array = MINLOC( ABS( dp_level_b - zu ) )
	1743	dp_level_ind_b = ind_array(1) - 1 + nzb
	1744	! MINLOC uses lower array bound 1
	1745	ENDIF
	1746	IF ( dp_smooth ) THEN
	1747	dp_smooth_factor(:dp_level_ind_b) = 0.0
	1748	DO k = dp_level_ind_b+1, nzt
	1749	dp_smooth_factor(k) = 0.5 * ( 1.0 + SIN( pi * &
	1750	( REAL( k - dp_level_ind_b ) / &
	1751	REAL( nzt - dp_level_ind_b ) - 0.5 ) ) )
	1752	ENDDO
	1753	ENDIF
	1754	ENDIF
	1755
	1756	!
[978]	1757	!-- Initialize damping zone for the potential temperature in case of
	1758	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
	1759	!-- at the inflow boundary and decreases to zero at pt_damping_width.
	1760	ptdf_x = 0.0
	1761	ptdf_y = 0.0
[1159]	1762	IF ( bc_lr_dirrad ) THEN
[996]	1763	DO i = nxl, nxr
[978]	1764	IF ( ( i * dx ) < pt_damping_width ) THEN
	1765	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5 * &
	1766	REAL( pt_damping_width - i * dx ) / ( &
	1767	REAL( pt_damping_width ) ) ) )**2
[73]	1768	ENDIF
	1769	ENDDO
[1159]	1770	ELSEIF ( bc_lr_raddir ) THEN
[996]	1771	DO i = nxl, nxr
[978]	1772	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
[996]	1773	ptdf_x(i) = pt_damping_factor * &
	1774	SIN( pi * 0.5 * ( ( i - nx ) * dx + pt_damping_width ) / &
	1775	REAL( pt_damping_width ) )**2
[73]	1776	ENDIF
[978]	1777	ENDDO
[1159]	1778	ELSEIF ( bc_ns_dirrad ) THEN
[996]	1779	DO j = nys, nyn
[978]	1780	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
[996]	1781	ptdf_y(j) = pt_damping_factor * &
	1782	SIN( pi * 0.5 * ( ( j - ny ) * dy + pt_damping_width ) / &
	1783	REAL( pt_damping_width ) )**2
[1]	1784	ENDIF
[978]	1785	ENDDO
[1159]	1786	ELSEIF ( bc_ns_raddir ) THEN
[996]	1787	DO j = nys, nyn
[978]	1788	IF ( ( j * dy ) < pt_damping_width ) THEN
[996]	1789	ptdf_y(j) = pt_damping_factor * &
	1790	SIN( pi * 0.5 * ( pt_damping_width - j * dy ) / &
	1791	REAL( pt_damping_width ) )**2
[1]	1792	ENDIF
[73]	1793	ENDDO
[1]	1794	ENDIF
	1795
	1796	!
[709]	1797	!-- Initialize local summation arrays for routine flow_statistics.
	1798	!-- This is necessary because they may not yet have been initialized when they
	1799	!-- are called from flow_statistics (or - depending on the chosen model run -
	1800	!-- are never initialized)
[1]	1801	sums_divnew_l = 0.0
	1802	sums_divold_l = 0.0
	1803	sums_l_l = 0.0
	1804	sums_up_fraction_l = 0.0
	1805	sums_wsts_bc_l = 0.0
	1806
	1807	!
	1808	!-- Pre-set masks for regional statistics. Default is the total model domain.
[1015]	1809	!-- Ghost points are excluded because counting values at the ghost boundaries
	1810	!-- would bias the statistics
[1]	1811	rmask = 1.0
[1025]	1812	rmask(:,nxlg:nxl-1,:) = 0.0; rmask(:,nxr+1:nxrg,:) = 0.0
	1813	rmask(nysg:nys-1,:,:) = 0.0; rmask(nyn+1:nyng,:,:) = 0.0
[1]	1814
	1815	!
[51]	1816	!-- User-defined initializing actions. Check afterwards, if maximum number
[709]	1817	!-- of allowed timeseries is exceeded
[1]	1818	CALL user_init
	1819
[51]	1820	IF ( dots_num > dots_max ) THEN
[254]	1821	WRITE( message_string, * ) 'number of time series quantities exceeds', &
[274]	1822	' its maximum of dots_max = ', dots_max, &
[254]	1823	' &Please increase dots_max in modules.f90.'
	1824	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
[51]	1825	ENDIF
	1826
[1]	1827	!
	1828	!-- Input binary data file is not needed anymore. This line must be placed
	1829	!-- after call of user_init!
	1830	CALL close_file( 13 )
	1831
	1832	!
	1833	!-- Compute total sum of active mask grid points
	1834	!-- ngp_2dh: number of grid points of a horizontal cross section through the
	1835	!-- total domain
	1836	!-- ngp_3d: number of grid points of the total domain
[132]	1837	ngp_2dh_outer_l = 0
	1838	ngp_2dh_outer = 0
	1839	ngp_2dh_s_inner_l = 0
	1840	ngp_2dh_s_inner = 0
	1841	ngp_2dh_l = 0
	1842	ngp_2dh = 0
[485]	1843	ngp_3d_inner_l = 0.0
[132]	1844	ngp_3d_inner = 0
	1845	ngp_3d = 0
	1846	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
[1]	1847
	1848	DO sr = 0, statistic_regions
	1849	DO i = nxl, nxr
	1850	DO j = nys, nyn
	1851	IF ( rmask(j,i,sr) == 1.0 ) THEN
	1852	!
	1853	!-- All xy-grid points
	1854	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1855	!
	1856	!-- xy-grid points above topography
	1857	DO k = nzb_s_outer(j,i), nz + 1
	1858	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
	1859	ENDDO
[132]	1860	DO k = nzb_s_inner(j,i), nz + 1
	1861	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
	1862	ENDDO
[1]	1863	!
	1864	!-- All grid points of the total domain above topography
	1865	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
	1866	( nz - nzb_s_inner(j,i) + 2 )
	1867	ENDIF
	1868	ENDDO
	1869	ENDDO
	1870	ENDDO
	1871
	1872	sr = statistic_regions + 1
	1873	#if defined( __parallel )
[622]	1874	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1875	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
[1]	1876	comm2d, ierr )
[622]	1877	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1878	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
[1]	1879	MPI_INTEGER, MPI_SUM, comm2d, ierr )
[622]	1880	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1881	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
[132]	1882	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
[622]	1883	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1884	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
[1]	1885	MPI_SUM, comm2d, ierr )
[485]	1886	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
[1]	1887	#else
[132]	1888	ngp_2dh = ngp_2dh_l
	1889	ngp_2dh_outer = ngp_2dh_outer_l
	1890	ngp_2dh_s_inner = ngp_2dh_s_inner_l
[485]	1891	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
[1]	1892	#endif
	1893
[560]	1894	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
	1895	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
[1]	1896
	1897	!
	1898	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
	1899	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
	1900	!-- the respective subdomain lie below the surface topography
[667]	1901	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
[631]	1902	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
	1903	ngp_3d_inner(:) )
[667]	1904	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
[1]	1905
[485]	1906	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, ngp_3d_inner_tmp )
[1]	1907
	1908
	1909	END SUBROUTINE init_3d_model

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