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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1485

Last change on this file since 1485 was 1485, checked in by kanani, 9 years ago
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[1]	1	SUBROUTINE init_3d_model
	2
[1036]	3	!--------------------------------------------------------------------------------!
	4	! This file is part of PALM.
	5	!
	6	! PALM is free software: you can redistribute it and/or modify it under the terms
	7	! of the GNU General Public License as published by the Free Software Foundation,
	8	! either version 3 of the License, or (at your option) any later version.
	9	!
	10	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
	11	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
	12	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
	13	!
	14	! You should have received a copy of the GNU General Public License along with
	15	! PALM. If not, see <http://www.gnu.org/licenses/>.
	16	!
[1310]	17	! Copyright 1997-2014 Leibniz Universitaet Hannover
[1036]	18	!--------------------------------------------------------------------------------!
	19	!
[254]	20	! Current revisions:
[732]	21	! ------------------
[1485]	22	!
	23	!
	24	! Former revisions:
	25	! -----------------
	26	! $Id: init_3d_model.f90 1485 2014-10-21 11:09:54Z kanani $
	27	!
	28	! 1484 2014-10-21 10:53:05Z kanani
[1484]	29	! Changes due to new module structure of the plant canopy model:
	30	! canopy-related initialization (e.g. lad and canopy_heat_flux) moved to new
	31	! subroutine init_plant_canopy within the module plant_canopy_model_mod,
	32	! call of subroutine init_plant_canopy added.
[1341]	33	!
[1432]	34	! 1431 2014-07-15 14:47:17Z suehring
	35	! var_d added, in order to normalize spectra.
	36	!
[1430]	37	! 1429 2014-07-15 12:53:45Z knoop
	38	! Ensemble run capability added to parallel random number generator
	39	!
[1412]	40	! 1411 2014-05-16 18:01:51Z suehring
	41	! Initial horizontal velocity profiles were not set to zero at the first vertical
	42	! grid level in case of non-cyclic lateral boundary conditions.
	43	!
[1407]	44	! 1406 2014-05-16 13:47:01Z raasch
	45	! bugfix: setting of initial velocities at k=1 to zero not in case of a
	46	! no-slip boundary condition for uv
	47	!
[1403]	48	! 1402 2014-05-09 14:25:13Z raasch
	49	! location messages modified
	50	!
[1401]	51	! 1400 2014-05-09 14:03:54Z knoop
	52	! Parallel random number generator added
	53	!
[1385]	54	! 1384 2014-05-02 14:31:06Z raasch
	55	! location messages added
	56	!
[1362]	57	! 1361 2014-04-16 15:17:48Z hoffmann
	58	! tend_* removed
	59	! Bugfix: w_subs is not allocated anymore if it is already allocated
	60	!
[1360]	61	! 1359 2014-04-11 17:15:14Z hoffmann
	62	! module lpm_init_mod added to use statements, because lpm_init has become a
	63	! module
	64	!
[1354]	65	! 1353 2014-04-08 15:21:23Z heinze
	66	! REAL constants provided with KIND-attribute
	67	!
[1341]	68	! 1340 2014-03-25 19:45:13Z kanani
	69	! REAL constants defined as wp-kind
	70	!
[1323]	71	! 1322 2014-03-20 16:38:49Z raasch
	72	! REAL constants defined as wp-kind
	73	! module interfaces removed
	74	!
[1321]	75	! 1320 2014-03-20 08:40:49Z raasch
	76	! ONLY-attribute added to USE-statements,
	77	! kind-parameters added to all INTEGER and REAL declaration statements,
	78	! kinds are defined in new module kinds,
	79	! revision history before 2012 removed,
	80	! comment fields (!:) to be used for variable explanations added to
	81	! all variable declaration statements
	82	!
[1317]	83	! 1316 2014-03-17 07:44:59Z heinze
	84	! Bugfix: allocation of w_subs
	85	!
[1300]	86	! 1299 2014-03-06 13:15:21Z heinze
	87	! Allocate w_subs due to extension of large scale subsidence in combination
	88	! with large scale forcing data (LSF_DATA)
	89	!
[1242]	90	! 1241 2013-10-30 11:36:58Z heinze
	91	! Overwrite initial profiles in case of nudging
	92	! Inititialize shf and qsws in case of large_scale_forcing
	93	!
[1222]	94	! 1221 2013-09-10 08:59:13Z raasch
	95	! +rflags_s_inner in copyin statement, use copyin for most arrays instead of
	96	! copy
	97	!
[1213]	98	! 1212 2013-08-15 08:46:27Z raasch
	99	! array tri is allocated and included in data copy statement
	100	!
[1196]	101	! 1195 2013-07-01 12:27:57Z heinze
	102	! Bugfix: move allocation of ref_state to parin.f90 and read_var_list.f90
	103	!
[1182]	104	! 1179 2013-06-14 05:57:58Z raasch
	105	! allocate and set ref_state to be used in buoyancy terms
	106	!
[1172]	107	! 1171 2013-05-30 11:27:45Z raasch
	108	! diss array is allocated with full size if accelerator boards are used
	109	!
[1160]	110	! 1159 2013-05-21 11:58:22Z fricke
	111	! -bc_lr_dirneu, bc_lr_neudir, bc_ns_dirneu, bc_ns_neudir
	112	!
[1154]	113	! 1153 2013-05-10 14:33:08Z raasch
	114	! diss array is allocated with dummy elements even if it is not needed
[1171]	115	! (required by PGI 13.4 / CUDA 5.0)
[1154]	116	!
[1116]	117	! 1115 2013-03-26 18:16:16Z hoffmann
	118	! unused variables removed
	119	!
[1114]	120	! 1113 2013-03-10 02:48:14Z raasch
	121	! openACC directive modified
	122	!
[1112]	123	! 1111 2013-03-08 23:54:10Z raasch
	124	! openACC directives added for pres
	125	! array diss allocated only if required
	126	!
[1093]	127	! 1092 2013-02-02 11:24:22Z raasch
	128	! unused variables removed
	129	!
[1066]	130	! 1065 2012-11-22 17:42:36Z hoffmann
	131	! allocation of diss (dissipation rate) in case of turbulence = .TRUE. added
	132	!
[1054]	133	! 1053 2012-11-13 17:11:03Z hoffmann
[1053]	134	! allocation and initialisation of necessary data arrays for the two-moment
	135	! cloud physics scheme the two new prognostic equations (nr, qr):
	136	! +dr, lambda_r, mu_r, sed_, xr, s, sws, swst, , _p, t_m, _1, _2, _3,
	137	! +tend_*, prr
[979]	138	!
[1037]	139	! 1036 2012-10-22 13:43:42Z raasch
	140	! code put under GPL (PALM 3.9)
	141	!
[1033]	142	! 1032 2012-10-21 13:03:21Z letzel
	143	! save memory by not allocating pt_2 in case of neutral = .T.
	144	!
[1026]	145	! 1025 2012-10-07 16:04:41Z letzel
	146	! bugfix: swap indices of mask for ghost boundaries
	147	!
[1017]	148	! 1015 2012-09-27 09:23:24Z raasch
	149	! mask is set to zero for ghost boundaries
	150	!
[1011]	151	! 1010 2012-09-20 07:59:54Z raasch
	152	! cpp switch __nopointer added for pointer free version
	153	!
[1004]	154	! 1003 2012-09-14 14:35:53Z raasch
	155	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
	156	!
[1002]	157	! 1001 2012-09-13 14:08:46Z raasch
	158	! all actions concerning leapfrog scheme removed
	159	!
[997]	160	! 996 2012-09-07 10:41:47Z raasch
	161	! little reformatting
	162	!
[979]	163	! 978 2012-08-09 08:28:32Z fricke
[978]	164	! outflow damping layer removed
	165	! roughness length for scalar quantites z0h added
	166	! damping zone for the potential temperatur in case of non-cyclic lateral
	167	! boundaries added
	168	! initialization of ptdf_x, ptdf_y
	169	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
[708]	170	!
[850]	171	! 849 2012-03-15 10:35:09Z raasch
	172	! init_particles renamed lpm_init
	173	!
[826]	174	! 825 2012-02-19 03:03:44Z raasch
	175	! wang_collision_kernel renamed wang_kernel
	176	!
[1]	177	! Revision 1.1 1998/03/09 16:22:22 raasch
	178	! Initial revision
	179	!
	180	!
	181	! Description:
	182	! ------------
	183	! Allocation of arrays and initialization of the 3D model via
	184	! a) pre-run the 1D model
	185	! or
	186	! b) pre-set constant linear profiles
	187	! or
	188	! c) read values of a previous run
	189	!------------------------------------------------------------------------------!
	190
[667]	191	USE advec_ws
[1320]	192
[1]	193	USE arrays_3d
[1320]	194
	195	USE cloud_parameters, &
	196	ONLY: nc_const, precipitation_amount, precipitation_rate, prr
	197
	198	USE constants, &
	199	ONLY: pi
	200
[1]	201	USE control_parameters
[1320]	202
	203	USE grid_variables, &
	204	ONLY: dx, dy
	205
[1]	206	USE indices
[1359]	207
[1429]	208	USE lpm_init_mod, &
[1359]	209	ONLY: lpm_init
[1320]	210
	211	USE kinds
	212
[1241]	213	USE ls_forcing_mod
[1320]	214
	215	USE model_1d, &
	216	ONLY: e1d, kh1d, km1d, l1d, rif1d, u1d, us1d, usws1d, v1d, vsws1d
	217
[51]	218	USE netcdf_control
[1320]	219
	220	USE particle_attributes, &
	221	ONLY: particle_advection, use_sgs_for_particles, wang_kernel
	222
[1]	223	USE pegrid
[1320]	224
[1484]	225	USE plant_canopy_model_mod, &
	226	ONLY: init_plant_canopy, plant_canopy
	227
[1320]	228	USE random_function_mod
	229
[1400]	230	USE random_generator_parallel, &
	231	ONLY: random_number_parallel, random_seed_parallel, random_dummy, &
	232	id_random_array, seq_random_array
	233
[1320]	234	USE statistics, &
	235	ONLY: hom, hom_sum, pr_palm, rmask, spectrum_x, spectrum_y, &
	236	statistic_regions, sums, sums_divnew_l, sums_divold_l, sums_l, &
	237	sums_l_l, sums_up_fraction_l, sums_wsts_bc_l, ts_value, &
[1431]	238	var_d, weight_pres, weight_substep
[1320]	239
	240	USE transpose_indices
[1]	241
	242	IMPLICIT NONE
	243
[1320]	244	INTEGER(iwp) :: i !:
	245	INTEGER(iwp) :: ind_array(1) !:
	246	INTEGER(iwp) :: j !:
	247	INTEGER(iwp) :: k !:
	248	INTEGER(iwp) :: sr !:
[1]	249
[1320]	250	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !:
[1]	251
[1320]	252	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !:
	253	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !:
[1]	254
[1320]	255	REAL(wp), DIMENSION(1:2) :: volume_flow_area_l !:
	256	REAL(wp), DIMENSION(1:2) :: volume_flow_initial_l !:
[1]	257
[1320]	258	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !:
	259	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !:
[1]	260
[485]	261
[1402]	262	CALL location_message( 'allocating arrays', .FALSE. )
[1]	263	!
	264	!-- Allocate arrays
	265	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
	266	ngp_3d(0:statistic_regions), &
	267	ngp_3d_inner(0:statistic_regions), &
	268	ngp_3d_inner_l(0:statistic_regions), &
[485]	269	ngp_3d_inner_tmp(0:statistic_regions), &
[1]	270	sums_divnew_l(0:statistic_regions), &
	271	sums_divold_l(0:statistic_regions) )
[1195]	272	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
[143]	273	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
[1]	274	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
[132]	275	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
	276	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
[996]	277	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
[87]	278	sums(nzb:nzt+1,pr_palm+max_pr_user), &
	279	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
[1]	280	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
	281	sums_up_fraction_l(10,3,0:statistic_regions), &
[48]	282	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
[394]	283	ts_value(dots_max,0:statistic_regions) )
[978]	284	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
[1]	285
[1001]	286	ALLOCATE( rif(nysg:nyng,nxlg:nxrg), shf(nysg:nyng,nxlg:nxrg), &
	287	ts(nysg:nyng,nxlg:nxrg), tswst(nysg:nyng,nxlg:nxrg), &
	288	us(nysg:nyng,nxlg:nxrg), usws(nysg:nyng,nxlg:nxrg), &
	289	uswst(nysg:nyng,nxlg:nxrg), vsws(nysg:nyng,nxlg:nxrg), &
	290	vswst(nysg:nyng,nxlg:nxrg), z0(nysg:nyng,nxlg:nxrg), &
[978]	291	z0h(nysg:nyng,nxlg:nxrg) )
[1]	292
[1010]	293	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
	294	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	295	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	296	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	297	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	298
	299	#if defined( __nopointer )
	300	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	301	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	302	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	303	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	304	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	305	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	306	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	307	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	308	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	309	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	310	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	311	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	312	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	313	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	314	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	315	#else
	316	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	317	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	318	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	319	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	320	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	321	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	322	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	323	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	324	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	325	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	326	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	327	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	328	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	329	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1032]	330	IF ( .NOT. neutral ) THEN
	331	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	332	ENDIF
[1010]	333	#endif
	334
[673]	335	!
[707]	336	!-- Following array is required for perturbation pressure within the iterative
	337	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
	338	!-- the weighted average of the substeps and cannot be used in the Poisson
	339	!-- solver.
	340	IF ( psolver == 'sor' ) THEN
	341	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	342	ELSEIF ( psolver == 'multigrid' ) THEN
	343	!
	344	!-- For performance reasons, multigrid is using one ghost layer only
	345	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[673]	346	ENDIF
[1]	347
[1111]	348	!
	349	!-- Array for storing constant coeffficients of the tridiagonal solver
	350	IF ( psolver == 'poisfft' ) THEN
[1212]	351	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
[1111]	352	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
	353	ENDIF
	354
[75]	355	IF ( humidity .OR. passive_scalar ) THEN
[1]	356	!
[75]	357	!-- 2D-humidity/scalar arrays
[1001]	358	ALLOCATE ( qs(nysg:nyng,nxlg:nxrg), &
	359	qsws(nysg:nyng,nxlg:nxrg), &
	360	qswst(nysg:nyng,nxlg:nxrg) )
[1]	361
	362	!
[75]	363	!-- 3D-humidity/scalar arrays
[1010]	364	#if defined( __nopointer )
	365	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	366	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	367	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	368	#else
[667]	369	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	370	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	371	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	372	#endif
[1]	373
	374	!
[75]	375	!-- 3D-arrays needed for humidity only
	376	IF ( humidity ) THEN
[1010]	377	#if defined( __nopointer )
	378	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	379	#else
[667]	380	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	381	#endif
[1]	382
	383	IF ( cloud_physics ) THEN
[1053]	384
[1]	385	!
	386	!-- Liquid water content
[1010]	387	#if defined( __nopointer )
	388	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	389	#else
[667]	390	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	391	#endif
[72]	392	!
	393	!-- Precipitation amount and rate (only needed if output is switched)
[667]	394	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
	395	precipitation_rate(nysg:nyng,nxlg:nxrg) )
[1053]	396
	397	IF ( icloud_scheme == 0 ) THEN
	398	!
[1115]	399	!-- 1D-arrays
	400	ALLOCATE ( nc_1d(nzb:nzt+1), pt_1d(nzb:nzt+1), &
	401	q_1d(nzb:nzt+1), qc_1d(nzb:nzt+1) )
[1053]	402	!
[1115]	403	!-- 3D-cloud water content
[1053]	404	#if defined( __nopointer )
[1115]	405	ALLOCATE( qc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1053]	406	#else
[1115]	407	ALLOCATE( qc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1053]	408	#endif
[1115]	409
	410	IF ( precipitation ) THEN
[1053]	411	!
[1115]	412	!-- 1D-arrays
	413	ALLOCATE ( nr_1d(nzb:nzt+1), qr_1d(nzb:nzt+1) )
[1361]	414
[1115]	415	!
	416	!-- 2D-rain water content and rain drop concentration arrays
	417	ALLOCATE ( qrs(nysg:nyng,nxlg:nxrg), &
	418	qrsws(nysg:nyng,nxlg:nxrg), &
	419	qrswst(nysg:nyng,nxlg:nxrg), &
	420	nrs(nysg:nyng,nxlg:nxrg), &
	421	nrsws(nysg:nyng,nxlg:nxrg), &
	422	nrswst(nysg:nyng,nxlg:nxrg) )
	423	!
	424	!-- 3D-rain water content, rain drop concentration arrays
	425	#if defined( __nopointer )
	426	ALLOCATE( nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	427	nr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	428	qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	429	qr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	430	tnr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	431	tqr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	432	#else
	433	ALLOCATE( nr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	434	nr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	435	nr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	436	qr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	437	qr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	438	qr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	439	#endif
	440	!
	441	!-- 3d-precipitation rate
[1053]	442	ALLOCATE( prr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	443	ENDIF
	444
	445	ENDIF
[1]	446	ENDIF
	447
	448	IF ( cloud_droplets ) THEN
	449	!
[1010]	450	!-- Liquid water content, change in liquid water content
	451	#if defined( __nopointer )
	452	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	453	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	454	#else
[667]	455	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1010]	456	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	457	#endif
	458	!
	459	!-- Real volume of particles (with weighting), volume of particles
	460	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	461	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1]	462	ENDIF
	463
	464	ENDIF
	465
	466	ENDIF
	467
[94]	468	IF ( ocean ) THEN
[1001]	469	ALLOCATE( saswsb(nysg:nyng,nxlg:nxrg), &
	470	saswst(nysg:nyng,nxlg:nxrg) )
[1010]	471	#if defined( __nopointer )
	472	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	473	rho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	474	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	475	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	476	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	477	#else
[667]	478	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	479	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	480	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	481	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	482	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[388]	483	prho => prho_1
	484	rho => rho_1 ! routines calc_mean_profile and diffusion_e require
	485	! density to be apointer
[1010]	486	#endif
[108]	487	IF ( humidity_remote ) THEN
[667]	488	ALLOCATE( qswst_remote(nysg:nyng,nxlg:nxrg))
[1340]	489	qswst_remote = 0.0_wp
[108]	490	ENDIF
[94]	491	ENDIF
	492
[1]	493	!
	494	!-- 3D-array for storing the dissipation, needed for calculating the sgs
	495	!-- particle velocities
[1171]	496	IF ( use_sgs_for_particles .OR. wang_kernel .OR. turbulence .OR. &
	497	num_acc_per_node > 0 ) THEN
[1153]	498	ALLOCATE( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1]	499	ENDIF
	500
[1340]	501	IF ( dt_dosp /= 9999999.9_wp ) THEN
[1]	502	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
	503	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
[1340]	504	spectrum_x = 0.0_wp
	505	spectrum_y = 0.0_wp
[1431]	506
	507	ALLOCATE( var_d(nzb:nzt+1) )
	508	var_d = 0.0_wp
[1]	509	ENDIF
	510
	511	!
[1299]	512	!-- 1D-array for large scale subsidence velocity
[1361]	513	IF ( .NOT. ALLOCATED( w_subs ) ) THEN
	514	ALLOCATE ( w_subs(nzb:nzt+1) )
	515	w_subs = 0.0_wp
	516	ENDIF
[1299]	517
	518	!
[1400]	519	!-- ID-array and state-space-array for the parallel random number generator
	520	IF ( random_generator == 'random-parallel' ) THEN
	521	ALLOCATE ( seq_random_array(5,nysg:nyng,nxlg:nxrg) )
	522	ALLOCATE ( id_random_array(0:ny,0:nx) )
	523	seq_random_array = 0
	524	id_random_array = 0
	525	ENDIF
	526
	527	!
[51]	528	!-- 4D-array for storing the Rif-values at vertical walls
	529	IF ( topography /= 'flat' ) THEN
[667]	530	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
[1340]	531	rif_wall = 0.0_wp
[51]	532	ENDIF
	533
	534	!
[106]	535	!-- Arrays to store velocity data from t-dt and the phase speeds which
	536	!-- are needed for radiation boundary conditions
[73]	537	IF ( outflow_l ) THEN
[667]	538	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
	539	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
	540	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
[73]	541	ENDIF
	542	IF ( outflow_r ) THEN
[667]	543	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	544	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	545	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
[73]	546	ENDIF
[106]	547	IF ( outflow_l .OR. outflow_r ) THEN
[667]	548	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
	549	c_w(nzb:nzt+1,nysg:nyng) )
[106]	550	ENDIF
[73]	551	IF ( outflow_s ) THEN
[667]	552	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
	553	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
	554	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
[73]	555	ENDIF
	556	IF ( outflow_n ) THEN
[667]	557	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	558	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	559	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
[73]	560	ENDIF
[106]	561	IF ( outflow_s .OR. outflow_n ) THEN
[667]	562	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
	563	c_w(nzb:nzt+1,nxlg:nxrg) )
[106]	564	ENDIF
[996]	565	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
[978]	566	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
	567	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
	568	ENDIF
[73]	569
[978]	570
[1010]	571	#if ! defined( __nopointer )
[73]	572	!
[1]	573	!-- Initial assignment of the pointers
[1001]	574	e => e_1; e_p => e_2; te_m => e_3
[1032]	575	IF ( .NOT. neutral ) THEN
	576	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
	577	ELSE
	578	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
	579	ENDIF
[1001]	580	u => u_1; u_p => u_2; tu_m => u_3
	581	v => v_1; v_p => v_2; tv_m => v_3
	582	w => w_1; w_p => w_2; tw_m => w_3
[1]	583
[1001]	584	IF ( humidity .OR. passive_scalar ) THEN
	585	q => q_1; q_p => q_2; tq_m => q_3
[1053]	586	IF ( humidity ) THEN
	587	vpt => vpt_1
	588	IF ( cloud_physics ) THEN
	589	ql => ql_1
	590	IF ( icloud_scheme == 0 ) THEN
[1115]	591	qc => qc_1
	592	IF ( precipitation ) THEN
	593	qr => qr_1; qr_p => qr_2; tqr_m => qr_3
	594	nr => nr_1; nr_p => nr_2; tnr_m => nr_3
	595	ENDIF
[1053]	596	ENDIF
	597	ENDIF
	598	ENDIF
[1001]	599	IF ( cloud_droplets ) THEN
	600	ql => ql_1
	601	ql_c => ql_2
[1]	602	ENDIF
[1001]	603	ENDIF
[1]	604
[1001]	605	IF ( ocean ) THEN
	606	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
	607	ENDIF
[1010]	608	#endif
[1]	609
	610	!
[709]	611	!-- Allocate arrays containing the RK coefficient for calculation of
	612	!-- perturbation pressure and turbulent fluxes. At this point values are
	613	!-- set for pressure calculation during initialization (where no timestep
	614	!-- is done). Further below the values needed within the timestep scheme
	615	!-- will be set.
	616	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
[673]	617	weight_pres(1:intermediate_timestep_count_max) )
[1340]	618	weight_substep = 1.0_wp
	619	weight_pres = 1.0_wp
[709]	620	intermediate_timestep_count = 1 ! needed when simulated_time = 0.0
[673]	621
[1402]	622	CALL location_message( 'finished', .TRUE. )
[673]	623	!
[1]	624	!-- Initialize model variables
[147]	625	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[328]	626	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[1]	627	!
	628	!-- First model run of a possible job queue.
	629	!-- Initial profiles of the variables must be computes.
	630	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
[1384]	631
[1402]	632	CALL location_message( 'initializing with 1D model profiles', .FALSE. )
[1]	633	!
	634	!-- Use solutions of the 1D model as initial profiles,
	635	!-- start 1D model
	636	CALL init_1d_model
	637	!
	638	!-- Transfer initial profiles to the arrays of the 3D model
[667]	639	DO i = nxlg, nxrg
	640	DO j = nysg, nyng
[1]	641	e(:,j,i) = e1d
	642	kh(:,j,i) = kh1d
	643	km(:,j,i) = km1d
	644	pt(:,j,i) = pt_init
	645	u(:,j,i) = u1d
	646	v(:,j,i) = v1d
	647	ENDDO
	648	ENDDO
	649
[75]	650	IF ( humidity .OR. passive_scalar ) THEN
[667]	651	DO i = nxlg, nxrg
	652	DO j = nysg, nyng
[1]	653	q(:,j,i) = q_init
	654	ENDDO
	655	ENDDO
[1353]	656	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
[1115]	657	precipitation ) THEN
[1053]	658	DO i = nxlg, nxrg
	659	DO j = nysg, nyng
[1340]	660	qr(:,j,i) = 0.0_wp
	661	nr(:,j,i) = 0.0_wp
[1053]	662	ENDDO
	663	ENDDO
[1115]	664	!
	665	!-- Initialze nc_1d with default value
	666	nc_1d(:) = nc_const
	667
[1053]	668	ENDIF
[1]	669	ENDIF
	670
	671	IF ( .NOT. constant_diffusion ) THEN
[667]	672	DO i = nxlg, nxrg
	673	DO j = nysg, nyng
[1]	674	e(:,j,i) = e1d
	675	ENDDO
	676	ENDDO
	677	!
	678	!-- Store initial profiles for output purposes etc.
	679	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	680
	681	IF ( prandtl_layer ) THEN
	682	rif = rif1d(nzb+1)
[1340]	683	ts = 0.0_wp ! could actually be computed more accurately in the
	684	! 1D model. Update when opportunity arises.
[1]	685	us = us1d
	686	usws = usws1d
	687	vsws = vsws1d
	688	ELSE
[1340]	689	ts = 0.0_wp ! must be set, because used in
	690	rif = 0.0_wp ! flowste
	691	us = 0.0_wp
	692	usws = 0.0_wp
	693	vsws = 0.0_wp
[1]	694	ENDIF
	695
	696	ELSE
[1340]	697	e = 0.0_wp ! must be set, because used in
	698	rif = 0.0_wp ! flowste
	699	ts = 0.0_wp
	700	us = 0.0_wp
	701	usws = 0.0_wp
	702	vsws = 0.0_wp
[1]	703	ENDIF
[102]	704	uswst = top_momentumflux_u
	705	vswst = top_momentumflux_v
[1]	706
	707	!
	708	!-- In every case qs = 0.0 (see also pt)
	709	!-- This could actually be computed more accurately in the 1D model.
	710	!-- Update when opportunity arises!
[1053]	711	IF ( humidity .OR. passive_scalar ) THEN
[1340]	712	qs = 0.0_wp
[1353]	713	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
[1115]	714	precipitation ) THEN
[1340]	715	qrs = 0.0_wp
	716	nrs = 0.0_wp
[1053]	717	ENDIF
	718	ENDIF
[1]	719
	720	!
	721	!-- inside buildings set velocities back to zero
	722	IF ( topography /= 'flat' ) THEN
	723	DO i = nxl-1, nxr+1
	724	DO j = nys-1, nyn+1
[1340]	725	u(nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
	726	v(nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
[1]	727	ENDDO
	728	ENDDO
[667]	729
[1]	730	!
	731	!-- WARNING: The extra boundary conditions set after running the
	732	!-- ------- 1D model impose an error on the divergence one layer
	733	!-- below the topography; need to correct later
	734	!-- ATTENTION: Provisional correction for Piacsek & Williams
	735	!-- --------- advection scheme: keep u and v zero one layer below
	736	!-- the topography.
[667]	737	IF ( ibc_uv_b == 1 ) THEN
	738	!
[1]	739	!-- Neumann condition
	740	DO i = nxl-1, nxr+1
	741	DO j = nys-1, nyn+1
	742	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
	743	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
	744	ENDDO
	745	ENDDO
	746
	747	ENDIF
	748
	749	ENDIF
	750
[1402]	751	CALL location_message( 'finished', .TRUE. )
[1384]	752
[1]	753	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
	754	THEN
[1241]	755
[1402]	756	CALL location_message( 'initializing with constant profiles', .FALSE. )
[1]	757	!
[1241]	758	!-- Overwrite initial profiles in case of nudging
	759	IF ( nudging ) THEN
	760	pt_init = ptnudge(:,1)
	761	u_init = unudge(:,1)
	762	v_init = vnudge(:,1)
	763	IF ( humidity .OR. passive_scalar ) THEN
	764	q_init = qnudge(:,1)
	765	ENDIF
	766
	767	WRITE( message_string, * ) 'Initial profiles of u, v and ', &
	768	'scalars from NUDGING_DATA are used.'
	769	CALL message( 'init_3d_model', 'PA0370', 0, 0, 0, 6, 0 )
	770	ENDIF
	771
	772	!
[1]	773	!-- Use constructed initial profiles (velocity constant with height,
	774	!-- temperature profile with constant gradient)
[667]	775	DO i = nxlg, nxrg
	776	DO j = nysg, nyng
[1]	777	pt(:,j,i) = pt_init
	778	u(:,j,i) = u_init
	779	v(:,j,i) = v_init
	780	ENDDO
	781	ENDDO
[75]	782
[1]	783	!
[292]	784	!-- Set initial horizontal velocities at the lowest computational grid
	785	!-- levels to zero in order to avoid too small time steps caused by the
	786	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
	787	!-- in the limiting formula!). The original values are stored to be later
	788	!-- used for volume flow control.
[1411]	789	IF ( ibc_uv_b /= 1 .AND. ( .NOT. bc_lr_dirrad .AND. &
	790	.NOT. bc_lr_raddir .AND. &
	791	.NOT. bc_ns_dirrad .AND. &
	792	.NOT. bc_ns_raddir ) ) THEN
[1406]	793	DO i = nxlg, nxrg
	794	DO j = nysg, nyng
	795	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0_wp
	796	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0_wp
	797	ENDDO
[1]	798	ENDDO
[1406]	799	ENDIF
[1]	800
[75]	801	IF ( humidity .OR. passive_scalar ) THEN
[667]	802	DO i = nxlg, nxrg
	803	DO j = nysg, nyng
[1]	804	q(:,j,i) = q_init
	805	ENDDO
	806	ENDDO
[1115]	807	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	808	!
	809	!-- Initialze nc_1d with default value
	810	nc_1d(:) = nc_const
	811
	812	IF ( precipitation ) THEN
	813	DO i = nxlg, nxrg
	814	DO j = nysg, nyng
[1340]	815	qr(:,j,i) = 0.0_wp
	816	nr(:,j,i) = 0.0_wp
[1115]	817	ENDDO
[1053]	818	ENDDO
[1115]	819	ENDIF
	820
[1053]	821	ENDIF
[1]	822	ENDIF
	823
[94]	824	IF ( ocean ) THEN
[667]	825	DO i = nxlg, nxrg
	826	DO j = nysg, nyng
[94]	827	sa(:,j,i) = sa_init
	828	ENDDO
	829	ENDDO
	830	ENDIF
[1]	831
	832	IF ( constant_diffusion ) THEN
	833	km = km_constant
	834	kh = km / prandtl_number
[1340]	835	e = 0.0_wp
	836	ELSEIF ( e_init > 0.0_wp ) THEN
[108]	837	DO k = nzb+1, nzt
[1340]	838	km(k,:,:) = 0.1_wp * l_grid(k) * SQRT( e_init )
[108]	839	ENDDO
	840	km(nzb,:,:) = km(nzb+1,:,:)
	841	km(nzt+1,:,:) = km(nzt,:,:)
	842	kh = km / prandtl_number
	843	e = e_init
[1]	844	ELSE
[108]	845	IF ( .NOT. ocean ) THEN
[1340]	846	kh = 0.01_wp ! there must exist an initial diffusion, because
	847	km = 0.01_wp ! otherwise no TKE would be produced by the
[108]	848	! production terms, as long as not yet
	849	! e = (u/cm)*2 at k=nzb+1
	850	ELSE
[1340]	851	kh = 0.00001_wp
	852	km = 0.00001_wp
[108]	853	ENDIF
[1340]	854	e = 0.0_wp
[1]	855	ENDIF
[1340]	856	rif = 0.0_wp
	857	ts = 0.0_wp
	858	us = 0.0_wp
	859	usws = 0.0_wp
[102]	860	uswst = top_momentumflux_u
[1340]	861	vsws = 0.0_wp
[102]	862	vswst = top_momentumflux_v
[1340]	863	IF ( humidity .OR. passive_scalar ) qs = 0.0_wp
[1]	864
	865	!
	866	!-- Compute initial temperature field and other constants used in case
	867	!-- of a sloping surface
	868	IF ( sloping_surface ) CALL init_slope
	869
[1402]	870	CALL location_message( 'finished', .TRUE. )
[1384]	871
[46]	872	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
	873	THEN
[1384]	874
[1402]	875	CALL location_message( 'initializing by user', .FALSE. )
[46]	876	!
	877	!-- Initialization will completely be done by the user
	878	CALL user_init_3d_model
	879
[1402]	880	CALL location_message( 'finished', .TRUE. )
[1384]	881
[1]	882	ENDIF
[1384]	883
[1402]	884	CALL location_message( 'initializing statistics, boundary conditions, etc.', &
	885	.FALSE. )
[1384]	886
[667]	887	!
	888	!-- Bottom boundary
	889	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
[1340]	890	u(nzb,:,:) = 0.0_wp
	891	v(nzb,:,:) = 0.0_wp
[667]	892	ENDIF
[1]	893
	894	!
[151]	895	!-- Apply channel flow boundary condition
[132]	896	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
[1340]	897	u(nzt+1,:,:) = 0.0_wp
	898	v(nzt+1,:,:) = 0.0_wp
[132]	899	ENDIF
	900
	901	!
[1]	902	!-- Calculate virtual potential temperature
[1340]	903	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
[1]	904
	905	!
	906	!-- Store initial profiles for output purposes etc.
	907	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	908	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
[667]	909	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
[1340]	910	hom(nzb,1,5,:) = 0.0_wp
	911	hom(nzb,1,6,:) = 0.0_wp
[1]	912	ENDIF
	913	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	914	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
	915	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
	916
[97]	917	IF ( ocean ) THEN
	918	!
	919	!-- Store initial salinity profile
	920	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
	921	ENDIF
[1]	922
[75]	923	IF ( humidity ) THEN
[1]	924	!
	925	!-- Store initial profile of total water content, virtual potential
	926	!-- temperature
	927	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	928	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
	929	IF ( cloud_physics .OR. cloud_droplets ) THEN
	930	!
	931	!-- Store initial profile of specific humidity and potential
	932	!-- temperature
	933	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	934	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	935	ENDIF
	936	ENDIF
	937
	938	IF ( passive_scalar ) THEN
	939	!
	940	!-- Store initial scalar profile
	941	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	942	ENDIF
	943
	944	!
[1400]	945	!-- Initialize the random number generators (from numerical recipes)
	946	CALL random_function_ini
[1429]	947
[1400]	948	IF ( random_generator == 'random-parallel' ) THEN
[1429]	949	!-- Asigning an ID to every vertical gridpoint column
	950	!-- dependig on the ensemble run number.
	951	random_dummy=1
[1400]	952	DO j=0,ny
	953	DO i=0,nx
[1429]	954	id_random_array(j,i) = random_dummy + 1E6 * ( ensemble_member_nr - 1000 )
	955	random_dummy = random_dummy + 1
[1400]	956	END DO
	957	ENDDO
[1429]	958	!-- Initializing with random_seed_parallel for every vertical
	959	!-- gridpoint column.
	960	random_dummy=0
[1400]	961	DO j = nysg, nyng
	962	DO i = nxlg, nxrg
	963	CALL random_seed_parallel (random_sequence=id_random_array(j, i))
	964	CALL random_number_parallel (random_dummy)
	965	CALL random_seed_parallel (get=seq_random_array(:, j, i))
	966	END DO
	967	ENDDO
	968	ENDIF
	969
	970	!
[19]	971	!-- Initialize fluxes at bottom surface
[1]	972	IF ( use_surface_fluxes ) THEN
	973
	974	IF ( constant_heatflux ) THEN
	975	!
	976	!-- Heat flux is prescribed
	977	IF ( random_heatflux ) THEN
	978	CALL disturb_heatflux
	979	ELSE
	980	shf = surface_heatflux
	981	!
[1241]	982	!-- Initialize shf with data from external file LSF_DATA
	983	IF ( large_scale_forcing .AND. lsf_surf ) THEN
	984	CALL ls_forcing_surf ( simulated_time )
	985	ENDIF
	986
	987	!
[1]	988	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
	989	IF ( TRIM( topography ) /= 'flat' ) THEN
[667]	990	DO i = nxlg, nxrg
	991	DO j = nysg, nyng
[1]	992	IF ( nzb_s_inner(j,i) /= 0 ) THEN
	993	shf(j,i) = wall_heatflux(0)
	994	ENDIF
	995	ENDDO
	996	ENDDO
	997	ENDIF
	998	ENDIF
	999	ENDIF
	1000
	1001	!
	1002	!-- Determine the near-surface water flux
[75]	1003	IF ( humidity .OR. passive_scalar ) THEN
[1115]	1004	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1005	precipitation ) THEN
[1340]	1006	qrsws = 0.0_wp
	1007	nrsws = 0.0_wp
[1053]	1008	ENDIF
[1]	1009	IF ( constant_waterflux ) THEN
	1010	qsws = surface_waterflux
[407]	1011	!
	1012	!-- Over topography surface_waterflux is replaced by
	1013	!-- wall_humidityflux(0)
	1014	IF ( TRIM( topography ) /= 'flat' ) THEN
	1015	wall_qflux = wall_humidityflux
[667]	1016	DO i = nxlg, nxrg
	1017	DO j = nysg, nyng
[407]	1018	IF ( nzb_s_inner(j,i) /= 0 ) THEN
	1019	qsws(j,i) = wall_qflux(0)
	1020	ENDIF
	1021	ENDDO
	1022	ENDDO
	1023	ENDIF
[1]	1024	ENDIF
	1025	ENDIF
	1026
	1027	ENDIF
	1028
	1029	!
[19]	1030	!-- Initialize fluxes at top surface
[94]	1031	!-- Currently, only the heatflux and salinity flux can be prescribed.
	1032	!-- The latent flux is zero in this case!
[19]	1033	IF ( use_top_fluxes ) THEN
	1034
	1035	IF ( constant_top_heatflux ) THEN
	1036	!
	1037	!-- Heat flux is prescribed
	1038	tswst = top_heatflux
	1039
[1053]	1040	IF ( humidity .OR. passive_scalar ) THEN
[1340]	1041	qswst = 0.0_wp
[1115]	1042	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1043	precipitation ) THEN
[1340]	1044	nrswst = 0.0_wp
	1045	qrswst = 0.0_wp
[1053]	1046	ENDIF
	1047	ENDIF
[94]	1048
	1049	IF ( ocean ) THEN
[95]	1050	saswsb = bottom_salinityflux
[94]	1051	saswst = top_salinityflux
	1052	ENDIF
[102]	1053	ENDIF
[19]	1054
[102]	1055	!
	1056	!-- Initialization in case of a coupled model run
	1057	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
[1340]	1058	tswst = 0.0_wp
[102]	1059	ENDIF
	1060
[19]	1061	ENDIF
	1062
	1063	!
[1]	1064	!-- Initialize Prandtl layer quantities
	1065	IF ( prandtl_layer ) THEN
	1066
	1067	z0 = roughness_length
[978]	1068	z0h = z0h_factor * z0
[1]	1069
	1070	IF ( .NOT. constant_heatflux ) THEN
	1071	!
	1072	!-- Surface temperature is prescribed. Here the heat flux cannot be
	1073	!-- simply estimated, because therefore rif, u* and theta* would have
	1074	!-- to be computed by iteration. This is why the heat flux is assumed
	1075	!-- to be zero before the first time step. It approaches its correct
	1076	!-- value in the course of the first few time steps.
[1340]	1077	shf = 0.0_wp
[1]	1078	ENDIF
	1079
[75]	1080	IF ( humidity .OR. passive_scalar ) THEN
[1340]	1081	IF ( .NOT. constant_waterflux ) qsws = 0.0_wp
[1115]	1082	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1083	precipitation ) THEN
[1340]	1084	qrsws = 0.0_wp
	1085	nrsws = 0.0_wp
[1053]	1086	ENDIF
[1]	1087	ENDIF
	1088
	1089	ENDIF
	1090
[1179]	1091	!
	1092	!-- Set the reference state to be used in the buoyancy terms (for ocean runs
	1093	!-- the reference state will be set (overwritten) in init_ocean)
	1094	IF ( use_single_reference_value ) THEN
	1095	IF ( .NOT. humidity ) THEN
	1096	ref_state(:) = pt_reference
	1097	ELSE
	1098	ref_state(:) = vpt_reference
	1099	ENDIF
	1100	ELSE
	1101	IF ( .NOT. humidity ) THEN
	1102	ref_state(:) = pt_init(:)
	1103	ELSE
	1104	ref_state(:) = vpt(:,nys,nxl)
	1105	ENDIF
	1106	ENDIF
[152]	1107
	1108	!
[707]	1109	!-- For the moment, vertical velocity is zero
[1340]	1110	w = 0.0_wp
[1]	1111
	1112	!
	1113	!-- Initialize array sums (must be defined in first call of pres)
[1340]	1114	sums = 0.0_wp
[1]	1115
	1116	!
[707]	1117	!-- In case of iterative solvers, p must get an initial value
[1340]	1118	IF ( psolver == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
[707]	1119
	1120	!
[72]	1121	!-- Treating cloud physics, liquid water content and precipitation amount
	1122	!-- are zero at beginning of the simulation
	1123	IF ( cloud_physics ) THEN
[1340]	1124	ql = 0.0_wp
	1125	IF ( precipitation ) precipitation_amount = 0.0_wp
[1115]	1126	IF ( icloud_scheme == 0 ) THEN
[1340]	1127	qc = 0.0_wp
[1115]	1128	nc_1d = nc_const
	1129	ENDIF
[72]	1130	ENDIF
[673]	1131	!
[1]	1132	!-- Impose vortex with vertical axis on the initial velocity profile
	1133	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	1134	CALL init_rankine
	1135	ENDIF
	1136
	1137	!
	1138	!-- Impose temperature anomaly (advection test only)
	1139	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
	1140	CALL init_pt_anomaly
	1141	ENDIF
	1142
	1143	!
	1144	!-- If required, change the surface temperature at the start of the 3D run
[1340]	1145	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
[1]	1146	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	1147	ENDIF
	1148
	1149	!
	1150	!-- If required, change the surface humidity/scalar at the start of the 3D
	1151	!-- run
[75]	1152	IF ( ( humidity .OR. passive_scalar ) .AND. &
[1340]	1153	q_surface_initial_change /= 0.0_wp ) THEN
[1]	1154	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
	1155	ENDIF
	1156
	1157	!
	1158	!-- Initialize old and new time levels.
[1340]	1159	te_m = 0.0_wp; tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
[1]	1160	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
	1161
[75]	1162	IF ( humidity .OR. passive_scalar ) THEN
[1340]	1163	tq_m = 0.0_wp
[1]	1164	q_p = q
[1115]	1165	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1166	precipitation ) THEN
[1340]	1167	tqr_m = 0.0_wp
[1053]	1168	qr_p = qr
[1340]	1169	tnr_m = 0.0_wp
[1053]	1170	nr_p = nr
	1171	ENDIF
[1]	1172	ENDIF
	1173
[94]	1174	IF ( ocean ) THEN
[1340]	1175	tsa_m = 0.0_wp
[94]	1176	sa_p = sa
	1177	ENDIF
[667]	1178
[1402]	1179	CALL location_message( 'finished', .TRUE. )
[94]	1180
[147]	1181	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
[667]	1182	TRIM( initializing_actions ) == 'cyclic_fill' ) &
[1]	1183	THEN
[1384]	1184
[1402]	1185	CALL location_message( 'initializing in case of restart / cyclic_fill', &
	1186	.FALSE. )
[1]	1187	!
[767]	1188	!-- When reading data for cyclic fill of 3D prerun data files, read
	1189	!-- some of the global variables from the restart file which are required
	1190	!-- for initializing the inflow
[328]	1191	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[559]	1192
[759]	1193	DO i = 0, io_blocks-1
	1194	IF ( i == io_group ) THEN
	1195	CALL read_parts_of_var_list
	1196	CALL close_file( 13 )
	1197	ENDIF
	1198	#if defined( __parallel )
	1199	CALL MPI_BARRIER( comm2d, ierr )
	1200	#endif
	1201	ENDDO
[328]	1202
[767]	1203	ENDIF
	1204
[151]	1205	!
[767]	1206	!-- Read binary data from restart file
	1207	DO i = 0, io_blocks-1
	1208	IF ( i == io_group ) THEN
	1209	CALL read_3d_binary
	1210	ENDIF
	1211	#if defined( __parallel )
	1212	CALL MPI_BARRIER( comm2d, ierr )
	1213	#endif
	1214	ENDDO
	1215
[328]	1216	!
[767]	1217	!-- Initialization of the turbulence recycling method
	1218	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
	1219	turbulent_inflow ) THEN
	1220	!
	1221	!-- First store the profiles to be used at the inflow.
	1222	!-- These profiles are the (temporally) and horizontally averaged vertical
	1223	!-- profiles from the prerun. Alternatively, prescribed profiles
	1224	!-- for u,v-components can be used.
	1225	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,5) )
[151]	1226
[767]	1227	IF ( use_prescribed_profile_data ) THEN
	1228	mean_inflow_profiles(:,1) = u_init ! u
	1229	mean_inflow_profiles(:,2) = v_init ! v
	1230	ELSE
[328]	1231	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
	1232	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
[767]	1233	ENDIF
	1234	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
	1235	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
[151]	1236
	1237	!
[767]	1238	!-- If necessary, adjust the horizontal flow field to the prescribed
	1239	!-- profiles
	1240	IF ( use_prescribed_profile_data ) THEN
	1241	DO i = nxlg, nxrg
[667]	1242	DO j = nysg, nyng
[328]	1243	DO k = nzb, nzt+1
[767]	1244	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
	1245	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
[328]	1246	ENDDO
[151]	1247	ENDDO
[767]	1248	ENDDO
	1249	ENDIF
[151]	1250
	1251	!
[767]	1252	!-- Use these mean profiles at the inflow (provided that Dirichlet
	1253	!-- conditions are used)
	1254	IF ( inflow_l ) THEN
	1255	DO j = nysg, nyng
	1256	DO k = nzb, nzt+1
	1257	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
	1258	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
[1340]	1259	w(k,j,nxlg:-1) = 0.0_wp
[767]	1260	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
	1261	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
	1262	ENDDO
	1263	ENDDO
	1264	ENDIF
	1265
[151]	1266	!
[767]	1267	!-- Calculate the damping factors to be used at the inflow. For a
	1268	!-- turbulent inflow the turbulent fluctuations have to be limited
	1269	!-- vertically because otherwise the turbulent inflow layer will grow
	1270	!-- in time.
[1340]	1271	IF ( inflow_damping_height == 9999999.9_wp ) THEN
[767]	1272	!
	1273	!-- Default: use the inversion height calculated by the prerun; if
	1274	!-- this is zero, inflow_damping_height must be explicitly
	1275	!-- specified.
[1340]	1276	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
[767]	1277	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
	1278	ELSE
	1279	WRITE( message_string, * ) 'inflow_damping_height must be ',&
	1280	'explicitly specified because&the inversion height ', &
	1281	'calculated by the prerun is zero.'
	1282	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
[292]	1283	ENDIF
[151]	1284
[767]	1285	ENDIF
	1286
[1340]	1287	IF ( inflow_damping_width == 9999999.9_wp ) THEN
[151]	1288	!
[767]	1289	!-- Default for the transition range: one tenth of the undamped
	1290	!-- layer
[1340]	1291	inflow_damping_width = 0.1_wp * inflow_damping_height
[151]	1292
[767]	1293	ENDIF
[151]	1294
[767]	1295	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
[151]	1296
[767]	1297	DO k = nzb, nzt+1
[151]	1298
[767]	1299	IF ( zu(k) <= inflow_damping_height ) THEN
[1340]	1300	inflow_damping_factor(k) = 1.0_wp
[996]	1301	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
[1340]	1302	inflow_damping_factor(k) = 1.0_wp - &
[996]	1303	( zu(k) - inflow_damping_height ) / &
	1304	inflow_damping_width
[767]	1305	ELSE
[1340]	1306	inflow_damping_factor(k) = 0.0_wp
[767]	1307	ENDIF
[151]	1308
[767]	1309	ENDDO
[151]	1310
[147]	1311	ENDIF
	1312
[152]	1313	!
[359]	1314	!-- Inside buildings set velocities and TKE back to zero
	1315	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
	1316	topography /= 'flat' ) THEN
	1317	!
	1318	!-- Inside buildings set velocities and TKE back to zero.
	1319	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
	1320	!-- maybe revise later.
[1001]	1321	DO i = nxlg, nxrg
	1322	DO j = nysg, nyng
[1340]	1323	u (nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
	1324	v (nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
	1325	w (nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
	1326	e (nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
	1327	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
	1328	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
	1329	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
	1330	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
	1331	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
[359]	1332	ENDDO
[1001]	1333	ENDDO
[359]	1334
	1335	ENDIF
	1336
	1337	!
[1]	1338	!-- Calculate initial temperature field and other constants used in case
	1339	!-- of a sloping surface
	1340	IF ( sloping_surface ) CALL init_slope
	1341
	1342	!
	1343	!-- Initialize new time levels (only done in order to set boundary values
	1344	!-- including ghost points)
	1345	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
[1053]	1346	IF ( humidity .OR. passive_scalar ) THEN
	1347	q_p = q
[1115]	1348	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1349	precipitation ) THEN
[1053]	1350	qr_p = qr
	1351	nr_p = nr
	1352	ENDIF
	1353	ENDIF
[94]	1354	IF ( ocean ) sa_p = sa
[1]	1355
[181]	1356	!
	1357	!-- Allthough tendency arrays are set in prognostic_equations, they have
	1358	!-- have to be predefined here because they are used (but multiplied with 0)
	1359	!-- there before they are set.
[1340]	1360	te_m = 0.0_wp; tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
[1053]	1361	IF ( humidity .OR. passive_scalar ) THEN
[1340]	1362	tq_m = 0.0_wp
[1115]	1363	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1364	precipitation ) THEN
[1340]	1365	tqr_m = 0.0_wp
	1366	tnr_m = 0.0_wp
[1053]	1367	ENDIF
	1368	ENDIF
[1340]	1369	IF ( ocean ) tsa_m = 0.0_wp
[181]	1370
[1402]	1371	CALL location_message( 'finished', .TRUE. )
[1384]	1372
[1]	1373	ELSE
	1374	!
	1375	!-- Actually this part of the programm should not be reached
[254]	1376	message_string = 'unknown initializing problem'
	1377	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
[1]	1378	ENDIF
	1379
[151]	1380
	1381	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
[1]	1382	!
[151]	1383	!-- Initialize old timelevels needed for radiation boundary conditions
	1384	IF ( outflow_l ) THEN
	1385	u_m_l(:,:,:) = u(:,:,1:2)
	1386	v_m_l(:,:,:) = v(:,:,0:1)
	1387	w_m_l(:,:,:) = w(:,:,0:1)
	1388	ENDIF
	1389	IF ( outflow_r ) THEN
	1390	u_m_r(:,:,:) = u(:,:,nx-1:nx)
	1391	v_m_r(:,:,:) = v(:,:,nx-1:nx)
	1392	w_m_r(:,:,:) = w(:,:,nx-1:nx)
	1393	ENDIF
	1394	IF ( outflow_s ) THEN
	1395	u_m_s(:,:,:) = u(:,0:1,:)
	1396	v_m_s(:,:,:) = v(:,1:2,:)
	1397	w_m_s(:,:,:) = w(:,0:1,:)
	1398	ENDIF
	1399	IF ( outflow_n ) THEN
	1400	u_m_n(:,:,:) = u(:,ny-1:ny,:)
	1401	v_m_n(:,:,:) = v(:,ny-1:ny,:)
	1402	w_m_n(:,:,:) = w(:,ny-1:ny,:)
	1403	ENDIF
[667]	1404
[151]	1405	ENDIF
[680]	1406
[667]	1407	!
	1408	!-- Calculate the initial volume flow at the right and north boundary
[709]	1409	IF ( conserve_volume_flow ) THEN
[151]	1410
[767]	1411	IF ( use_prescribed_profile_data ) THEN
[667]	1412
[1340]	1413	volume_flow_initial_l = 0.0_wp
	1414	volume_flow_area_l = 0.0_wp
[732]	1415
[667]	1416	IF ( nxr == nx ) THEN
	1417	DO j = nys, nyn
[709]	1418	DO k = nzb_2d(j,nx)+1, nzt
[667]	1419	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[767]	1420	u_init(k) * dzw(k)
	1421	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1422	ENDDO
	1423	ENDDO
	1424	ENDIF
	1425
	1426	IF ( nyn == ny ) THEN
	1427	DO i = nxl, nxr
	1428	DO k = nzb_2d(ny,i)+1, nzt
	1429	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1430	v_init(k) * dzw(k)
	1431	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1432	ENDDO
	1433	ENDDO
	1434	ENDIF
	1435
	1436	#if defined( __parallel )
	1437	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1438	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1439	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1440	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1441
	1442	#else
	1443	volume_flow_initial = volume_flow_initial_l
	1444	volume_flow_area = volume_flow_area_l
	1445	#endif
	1446
	1447	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1448
[1340]	1449	volume_flow_initial_l = 0.0_wp
	1450	volume_flow_area_l = 0.0_wp
[767]	1451
	1452	IF ( nxr == nx ) THEN
	1453	DO j = nys, nyn
	1454	DO k = nzb_2d(j,nx)+1, nzt
	1455	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[667]	1456	hom_sum(k,1,0) * dzw(k)
	1457	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1458	ENDDO
	1459	ENDDO
	1460	ENDIF
	1461
	1462	IF ( nyn == ny ) THEN
	1463	DO i = nxl, nxr
[709]	1464	DO k = nzb_2d(ny,i)+1, nzt
[667]	1465	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
[709]	1466	hom_sum(k,2,0) * dzw(k)
[667]	1467	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1468	ENDDO
	1469	ENDDO
	1470	ENDIF
	1471
[732]	1472	#if defined( __parallel )
	1473	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1474	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1475	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1476	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1477
	1478	#else
	1479	volume_flow_initial = volume_flow_initial_l
	1480	volume_flow_area = volume_flow_area_l
	1481	#endif
	1482
[667]	1483	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	1484
[1340]	1485	volume_flow_initial_l = 0.0_wp
	1486	volume_flow_area_l = 0.0_wp
[732]	1487
[667]	1488	IF ( nxr == nx ) THEN
	1489	DO j = nys, nyn
[709]	1490	DO k = nzb_2d(j,nx)+1, nzt
[667]	1491	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[709]	1492	u(k,j,nx) * dzw(k)
[667]	1493	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1494	ENDDO
	1495	ENDDO
	1496	ENDIF
	1497
	1498	IF ( nyn == ny ) THEN
	1499	DO i = nxl, nxr
[709]	1500	DO k = nzb_2d(ny,i)+1, nzt
[667]	1501	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1502	v(k,ny,i) * dzw(k)
	1503	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1504	ENDDO
	1505	ENDDO
	1506	ENDIF
	1507
	1508	#if defined( __parallel )
[732]	1509	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1510	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1511	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1512	2, MPI_REAL, MPI_SUM, comm2d, ierr )
[667]	1513
	1514	#else
[732]	1515	volume_flow_initial = volume_flow_initial_l
	1516	volume_flow_area = volume_flow_area_l
[667]	1517	#endif
	1518
[732]	1519	ENDIF
	1520
[151]	1521	!
[709]	1522	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
	1523	!-- from u\|v_bulk instead
[680]	1524	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
	1525	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
	1526	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
	1527	ENDIF
[667]	1528
[680]	1529	ENDIF
	1530
[787]	1531	!
	1532	!-- Initialize quantities for special advections schemes
	1533	CALL init_advec
[680]	1534
[667]	1535	!
[680]	1536	!-- Impose random perturbation on the horizontal velocity field and then
	1537	!-- remove the divergences from the velocity field at the initial stage
	1538	IF ( create_disturbances .AND. &
	1539	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
	1540	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
	1541
[1402]	1542	CALL location_message( 'creating initial disturbances', .FALSE. )
[680]	1543	CALL disturb_field( nzb_u_inner, tend, u )
	1544	CALL disturb_field( nzb_v_inner, tend, v )
[1402]	1545	CALL location_message( 'finished', .TRUE. )
[1384]	1546
[1402]	1547	CALL location_message( 'calling pressure solver', .FALSE. )
[680]	1548	n_sor = nsor_ini
[1221]	1549	!$acc data copyin( d, ddzu, ddzw, nzb_s_inner, nzb_u_inner ) &
	1550	!$acc copyin( nzb_v_inner, nzb_w_inner, p, rflags_s_inner, tend ) &
	1551	!$acc copyin( weight_pres, weight_substep ) &
	1552	!$acc copy( tri, tric, u, v, w )
[680]	1553	CALL pres
[1111]	1554	!$acc end data
[680]	1555	n_sor = nsor
[1402]	1556	CALL location_message( 'finished', .TRUE. )
[1384]	1557
[680]	1558	ENDIF
	1559
	1560	!
[1484]	1561	!-- If required, initialize quantities needed for the plant canopy model
	1562	IF ( plant_canopy ) CALL init_plant_canopy
[138]	1563
	1564	!
[1]	1565	!-- If required, initialize dvrp-software
[1340]	1566	IF ( dt_dvrp /= 9999999.9_wp ) CALL init_dvrp
[1]	1567
[96]	1568	IF ( ocean ) THEN
[1]	1569	!
[96]	1570	!-- Initialize quantities needed for the ocean model
	1571	CALL init_ocean
[388]	1572
[96]	1573	ELSE
	1574	!
	1575	!-- Initialize quantities for handling cloud physics
[849]	1576	!-- This routine must be called before lpm_init, because
[96]	1577	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
[849]	1578	!-- lpm_init) is not defined.
[96]	1579	CALL init_cloud_physics
	1580	ENDIF
[1]	1581
	1582	!
	1583	!-- If required, initialize particles
[849]	1584	IF ( particle_advection ) CALL lpm_init
[1]	1585
	1586	!
[673]	1587	!-- Initialize the ws-scheme.
	1588	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
[1]	1589
	1590	!
[709]	1591	!-- Setting weighting factors for calculation of perturbation pressure
	1592	!-- and turbulent quantities from the RK substeps
	1593	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
	1594
[1322]	1595	weight_substep(1) = 1._wp/6._wp
	1596	weight_substep(2) = 3._wp/10._wp
	1597	weight_substep(3) = 8._wp/15._wp
[709]	1598
[1322]	1599	weight_pres(1) = 1._wp/3._wp
	1600	weight_pres(2) = 5._wp/12._wp
	1601	weight_pres(3) = 1._wp/4._wp
[709]	1602
	1603	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
	1604
[1322]	1605	weight_substep(1) = 1._wp/2._wp
	1606	weight_substep(2) = 1._wp/2._wp
[673]	1607
[1322]	1608	weight_pres(1) = 1._wp/2._wp
	1609	weight_pres(2) = 1._wp/2._wp
[709]	1610
[1001]	1611	ELSE ! for Euler-method
[709]	1612
[1340]	1613	weight_substep(1) = 1.0_wp
	1614	weight_pres(1) = 1.0_wp
[709]	1615
[673]	1616	ENDIF
	1617
	1618	!
[1]	1619	!-- Initialize Rayleigh damping factors
[1340]	1620	rdf = 0.0_wp
	1621	rdf_sc = 0.0_wp
	1622	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
[108]	1623	IF ( .NOT. ocean ) THEN
	1624	DO k = nzb+1, nzt
	1625	IF ( zu(k) >= rayleigh_damping_height ) THEN
	1626	rdf(k) = rayleigh_damping_factor * &
[1340]	1627	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
	1628	/ ( zu(nzt) - rayleigh_damping_height ) )&
[1]	1629	)**2
[108]	1630	ENDIF
	1631	ENDDO
	1632	ELSE
	1633	DO k = nzt, nzb+1, -1
	1634	IF ( zu(k) <= rayleigh_damping_height ) THEN
	1635	rdf(k) = rayleigh_damping_factor * &
[1340]	1636	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
	1637	/ ( rayleigh_damping_height - zu(nzb+1)))&
[108]	1638	)**2
	1639	ENDIF
	1640	ENDDO
	1641	ENDIF
[1]	1642	ENDIF
[785]	1643	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
[1]	1644
	1645	!
[240]	1646	!-- Initialize the starting level and the vertical smoothing factor used for
	1647	!-- the external pressure gradient
[1340]	1648	dp_smooth_factor = 1.0_wp
[240]	1649	IF ( dp_external ) THEN
	1650	!
	1651	!-- Set the starting level dp_level_ind_b only if it has not been set before
	1652	!-- (e.g. in init_grid).
	1653	IF ( dp_level_ind_b == 0 ) THEN
	1654	ind_array = MINLOC( ABS( dp_level_b - zu ) )
	1655	dp_level_ind_b = ind_array(1) - 1 + nzb
	1656	! MINLOC uses lower array bound 1
	1657	ENDIF
	1658	IF ( dp_smooth ) THEN
[1340]	1659	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
[240]	1660	DO k = dp_level_ind_b+1, nzt
[1340]	1661	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
	1662	( REAL( k - dp_level_ind_b, KIND=wp ) / &
	1663	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
[240]	1664	ENDDO
	1665	ENDIF
	1666	ENDIF
	1667
	1668	!
[978]	1669	!-- Initialize damping zone for the potential temperature in case of
	1670	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
	1671	!-- at the inflow boundary and decreases to zero at pt_damping_width.
[1340]	1672	ptdf_x = 0.0_wp
	1673	ptdf_y = 0.0_wp
[1159]	1674	IF ( bc_lr_dirrad ) THEN
[996]	1675	DO i = nxl, nxr
[978]	1676	IF ( ( i * dx ) < pt_damping_width ) THEN
[1340]	1677	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
	1678	REAL( pt_damping_width - i * dx, KIND=wp ) / ( &
	1679	REAL( pt_damping_width, KIND=wp ) ) ) )**2
[73]	1680	ENDIF
	1681	ENDDO
[1159]	1682	ELSEIF ( bc_lr_raddir ) THEN
[996]	1683	DO i = nxl, nxr
[978]	1684	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
[1322]	1685	ptdf_x(i) = pt_damping_factor * &
[1340]	1686	SIN( pi * 0.5_wp * &
	1687	( ( i - nx ) * dx + pt_damping_width ) / &
	1688	REAL( pt_damping_width, KIND=wp ) )**2
[73]	1689	ENDIF
[978]	1690	ENDDO
[1159]	1691	ELSEIF ( bc_ns_dirrad ) THEN
[996]	1692	DO j = nys, nyn
[978]	1693	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
[1322]	1694	ptdf_y(j) = pt_damping_factor * &
[1340]	1695	SIN( pi * 0.5_wp * &
	1696	( ( j - ny ) * dy + pt_damping_width ) / &
	1697	REAL( pt_damping_width, KIND=wp ) )**2
[1]	1698	ENDIF
[978]	1699	ENDDO
[1159]	1700	ELSEIF ( bc_ns_raddir ) THEN
[996]	1701	DO j = nys, nyn
[978]	1702	IF ( ( j * dy ) < pt_damping_width ) THEN
[1322]	1703	ptdf_y(j) = pt_damping_factor * &
[1340]	1704	SIN( pi * 0.5_wp * &
	1705	( pt_damping_width - j * dy ) / &
	1706	REAL( pt_damping_width, KIND=wp ) )**2
[1]	1707	ENDIF
[73]	1708	ENDDO
[1]	1709	ENDIF
	1710
	1711	!
[709]	1712	!-- Initialize local summation arrays for routine flow_statistics.
	1713	!-- This is necessary because they may not yet have been initialized when they
	1714	!-- are called from flow_statistics (or - depending on the chosen model run -
	1715	!-- are never initialized)
[1340]	1716	sums_divnew_l = 0.0_wp
	1717	sums_divold_l = 0.0_wp
	1718	sums_l_l = 0.0_wp
	1719	sums_up_fraction_l = 0.0_wp
	1720	sums_wsts_bc_l = 0.0_wp
[1]	1721
	1722	!
	1723	!-- Pre-set masks for regional statistics. Default is the total model domain.
[1015]	1724	!-- Ghost points are excluded because counting values at the ghost boundaries
	1725	!-- would bias the statistics
[1340]	1726	rmask = 1.0_wp
	1727	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
	1728	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
[1]	1729
	1730	!
[51]	1731	!-- User-defined initializing actions. Check afterwards, if maximum number
[709]	1732	!-- of allowed timeseries is exceeded
[1]	1733	CALL user_init
	1734
[51]	1735	IF ( dots_num > dots_max ) THEN
[254]	1736	WRITE( message_string, * ) 'number of time series quantities exceeds', &
[274]	1737	' its maximum of dots_max = ', dots_max, &
[254]	1738	' &Please increase dots_max in modules.f90.'
	1739	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
[51]	1740	ENDIF
	1741
[1]	1742	!
	1743	!-- Input binary data file is not needed anymore. This line must be placed
	1744	!-- after call of user_init!
	1745	CALL close_file( 13 )
	1746
	1747	!
	1748	!-- Compute total sum of active mask grid points
	1749	!-- ngp_2dh: number of grid points of a horizontal cross section through the
	1750	!-- total domain
	1751	!-- ngp_3d: number of grid points of the total domain
[132]	1752	ngp_2dh_outer_l = 0
	1753	ngp_2dh_outer = 0
	1754	ngp_2dh_s_inner_l = 0
	1755	ngp_2dh_s_inner = 0
	1756	ngp_2dh_l = 0
	1757	ngp_2dh = 0
[1340]	1758	ngp_3d_inner_l = 0.0_wp
[132]	1759	ngp_3d_inner = 0
	1760	ngp_3d = 0
	1761	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
[1]	1762
	1763	DO sr = 0, statistic_regions
	1764	DO i = nxl, nxr
	1765	DO j = nys, nyn
[1340]	1766	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
[1]	1767	!
	1768	!-- All xy-grid points
	1769	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1770	!
	1771	!-- xy-grid points above topography
	1772	DO k = nzb_s_outer(j,i), nz + 1
	1773	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
	1774	ENDDO
[132]	1775	DO k = nzb_s_inner(j,i), nz + 1
	1776	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
	1777	ENDDO
[1]	1778	!
	1779	!-- All grid points of the total domain above topography
	1780	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
	1781	( nz - nzb_s_inner(j,i) + 2 )
	1782	ENDIF
	1783	ENDDO
	1784	ENDDO
	1785	ENDDO
	1786
	1787	sr = statistic_regions + 1
	1788	#if defined( __parallel )
[622]	1789	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1790	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
[1]	1791	comm2d, ierr )
[622]	1792	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1793	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
[1]	1794	MPI_INTEGER, MPI_SUM, comm2d, ierr )
[622]	1795	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1796	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
[132]	1797	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
[622]	1798	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1799	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
[1]	1800	MPI_SUM, comm2d, ierr )
[485]	1801	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
[1]	1802	#else
[132]	1803	ngp_2dh = ngp_2dh_l
	1804	ngp_2dh_outer = ngp_2dh_outer_l
	1805	ngp_2dh_s_inner = ngp_2dh_s_inner_l
[485]	1806	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
[1]	1807	#endif
	1808
[560]	1809	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
	1810	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
[1]	1811
	1812	!
	1813	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
	1814	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
	1815	!-- the respective subdomain lie below the surface topography
[667]	1816	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
[631]	1817	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
	1818	ngp_3d_inner(:) )
[667]	1819	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
[1]	1820
[485]	1821	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, ngp_3d_inner_tmp )
[1]	1822
[1402]	1823	CALL location_message( 'leaving init_3d_model', .TRUE. )
[1]	1824
	1825	END SUBROUTINE init_3d_model

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