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source: palm/trunk/SOURCE/init_3d_model.f90 @ 1710

Last change on this file since 1710 was 1708, checked in by maronga, 9 years ago
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[1682]	1	!> @file init_3d_model.f90
[1036]	2	!--------------------------------------------------------------------------------!
	3	! This file is part of PALM.
	4	!
	5	! PALM is free software: you can redistribute it and/or modify it under the terms
	6	! of the GNU General Public License as published by the Free Software Foundation,
	7	! either version 3 of the License, or (at your option) any later version.
	8	!
	9	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
	10	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
	11	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
	12	!
	13	! You should have received a copy of the GNU General Public License along with
	14	! PALM. If not, see <http://www.gnu.org/licenses/>.
	15	!
[1691]	16	! Copyright 1997-2015 Leibniz Universitaet Hannover
[1036]	17	!--------------------------------------------------------------------------------!
	18	!
[254]	19	! Current revisions:
[732]	20	! ------------------
[1586]	21	!
[1708]	22	!
[1485]	23	! Former revisions:
	24	! -----------------
	25	! $Id: init_3d_model.f90 1708 2015-11-02 15:28:36Z maronga $
	26	!
[1708]	27	! 1707 2015-11-02 15:24:52Z maronga
	28	! Bugfix: transfer of Richardson number from 1D model to Obukhov length caused
	29	! devision by zero in neutral stratification
	30	!
[1692]	31	! 1691 2015-10-26 16:17:44Z maronga
	32	! Call to init_surface_layer added. rif is replaced by ol and zeta.
	33	!
[1683]	34	! 1682 2015-10-07 23:56:08Z knoop
	35	! Code annotations made doxygen readable
	36	!
[1616]	37	! 1615 2015-07-08 18:49:19Z suehring
	38	! Enable turbulent inflow for passive_scalar and humidity
	39	!
[1586]	40	! 1585 2015-04-30 07:05:52Z maronga
	41	! Initialization of radiation code is now done after LSM initializtion
	42	!
[1576]	43	! 1575 2015-03-27 09:56:27Z raasch
	44	! adjustments for psolver-queries
	45	!
[1552]	46	! 1551 2015-03-03 14:18:16Z maronga
	47	! Allocation of land surface arrays is now done in the subroutine init_lsm_arrays,
	48	! which is part of land_surface_model.
	49	!
[1508]	50	! 1507 2014-12-10 12:14:18Z suehring
	51	! Bugfix: set horizontal velocity components to zero inside topography
	52	!
[1497]	53	! 1496 2014-12-02 17:25:50Z maronga
	54	! Added initialization of the land surface and radiation schemes
	55	!
[1485]	56	! 1484 2014-10-21 10:53:05Z kanani
[1484]	57	! Changes due to new module structure of the plant canopy model:
[1508]	58	! canopy-related initialization (e.g. lad and canopy_heat_flux) moved to new
	59	! subroutine init_plant_canopy within the module plant_canopy_model_mod,
	60	! call of subroutine init_plant_canopy added.
[1341]	61	!
[1432]	62	! 1431 2014-07-15 14:47:17Z suehring
	63	! var_d added, in order to normalize spectra.
	64	!
[1430]	65	! 1429 2014-07-15 12:53:45Z knoop
	66	! Ensemble run capability added to parallel random number generator
	67	!
[1412]	68	! 1411 2014-05-16 18:01:51Z suehring
	69	! Initial horizontal velocity profiles were not set to zero at the first vertical
	70	! grid level in case of non-cyclic lateral boundary conditions.
	71	!
[1407]	72	! 1406 2014-05-16 13:47:01Z raasch
	73	! bugfix: setting of initial velocities at k=1 to zero not in case of a
	74	! no-slip boundary condition for uv
	75	!
[1403]	76	! 1402 2014-05-09 14:25:13Z raasch
	77	! location messages modified
	78	!
[1401]	79	! 1400 2014-05-09 14:03:54Z knoop
	80	! Parallel random number generator added
	81	!
[1385]	82	! 1384 2014-05-02 14:31:06Z raasch
	83	! location messages added
	84	!
[1362]	85	! 1361 2014-04-16 15:17:48Z hoffmann
	86	! tend_* removed
	87	! Bugfix: w_subs is not allocated anymore if it is already allocated
	88	!
[1360]	89	! 1359 2014-04-11 17:15:14Z hoffmann
	90	! module lpm_init_mod added to use statements, because lpm_init has become a
	91	! module
	92	!
[1354]	93	! 1353 2014-04-08 15:21:23Z heinze
	94	! REAL constants provided with KIND-attribute
	95	!
[1341]	96	! 1340 2014-03-25 19:45:13Z kanani
	97	! REAL constants defined as wp-kind
	98	!
[1323]	99	! 1322 2014-03-20 16:38:49Z raasch
	100	! REAL constants defined as wp-kind
	101	! module interfaces removed
	102	!
[1321]	103	! 1320 2014-03-20 08:40:49Z raasch
	104	! ONLY-attribute added to USE-statements,
	105	! kind-parameters added to all INTEGER and REAL declaration statements,
	106	! kinds are defined in new module kinds,
	107	! revision history before 2012 removed,
	108	! comment fields (!:) to be used for variable explanations added to
	109	! all variable declaration statements
	110	!
[1317]	111	! 1316 2014-03-17 07:44:59Z heinze
	112	! Bugfix: allocation of w_subs
	113	!
[1300]	114	! 1299 2014-03-06 13:15:21Z heinze
	115	! Allocate w_subs due to extension of large scale subsidence in combination
	116	! with large scale forcing data (LSF_DATA)
	117	!
[1242]	118	! 1241 2013-10-30 11:36:58Z heinze
	119	! Overwrite initial profiles in case of nudging
	120	! Inititialize shf and qsws in case of large_scale_forcing
	121	!
[1222]	122	! 1221 2013-09-10 08:59:13Z raasch
	123	! +rflags_s_inner in copyin statement, use copyin for most arrays instead of
	124	! copy
	125	!
[1213]	126	! 1212 2013-08-15 08:46:27Z raasch
	127	! array tri is allocated and included in data copy statement
	128	!
[1196]	129	! 1195 2013-07-01 12:27:57Z heinze
	130	! Bugfix: move allocation of ref_state to parin.f90 and read_var_list.f90
	131	!
[1182]	132	! 1179 2013-06-14 05:57:58Z raasch
	133	! allocate and set ref_state to be used in buoyancy terms
	134	!
[1172]	135	! 1171 2013-05-30 11:27:45Z raasch
	136	! diss array is allocated with full size if accelerator boards are used
	137	!
[1160]	138	! 1159 2013-05-21 11:58:22Z fricke
	139	! -bc_lr_dirneu, bc_lr_neudir, bc_ns_dirneu, bc_ns_neudir
	140	!
[1154]	141	! 1153 2013-05-10 14:33:08Z raasch
	142	! diss array is allocated with dummy elements even if it is not needed
[1171]	143	! (required by PGI 13.4 / CUDA 5.0)
[1154]	144	!
[1116]	145	! 1115 2013-03-26 18:16:16Z hoffmann
	146	! unused variables removed
	147	!
[1114]	148	! 1113 2013-03-10 02:48:14Z raasch
	149	! openACC directive modified
	150	!
[1112]	151	! 1111 2013-03-08 23:54:10Z raasch
	152	! openACC directives added for pres
	153	! array diss allocated only if required
	154	!
[1093]	155	! 1092 2013-02-02 11:24:22Z raasch
	156	! unused variables removed
	157	!
[1066]	158	! 1065 2012-11-22 17:42:36Z hoffmann
	159	! allocation of diss (dissipation rate) in case of turbulence = .TRUE. added
	160	!
[1054]	161	! 1053 2012-11-13 17:11:03Z hoffmann
[1053]	162	! allocation and initialisation of necessary data arrays for the two-moment
	163	! cloud physics scheme the two new prognostic equations (nr, qr):
	164	! +dr, lambda_r, mu_r, sed_, xr, s, sws, swst, , _p, t_m, _1, _2, _3,
	165	! +tend_*, prr
[979]	166	!
[1037]	167	! 1036 2012-10-22 13:43:42Z raasch
	168	! code put under GPL (PALM 3.9)
	169	!
[1033]	170	! 1032 2012-10-21 13:03:21Z letzel
	171	! save memory by not allocating pt_2 in case of neutral = .T.
	172	!
[1026]	173	! 1025 2012-10-07 16:04:41Z letzel
	174	! bugfix: swap indices of mask for ghost boundaries
	175	!
[1017]	176	! 1015 2012-09-27 09:23:24Z raasch
	177	! mask is set to zero for ghost boundaries
	178	!
[1011]	179	! 1010 2012-09-20 07:59:54Z raasch
	180	! cpp switch __nopointer added for pointer free version
	181	!
[1004]	182	! 1003 2012-09-14 14:35:53Z raasch
	183	! nxra,nyna, nzta replaced ny nxr, nyn, nzt
	184	!
[1002]	185	! 1001 2012-09-13 14:08:46Z raasch
	186	! all actions concerning leapfrog scheme removed
	187	!
[997]	188	! 996 2012-09-07 10:41:47Z raasch
	189	! little reformatting
	190	!
[979]	191	! 978 2012-08-09 08:28:32Z fricke
[978]	192	! outflow damping layer removed
	193	! roughness length for scalar quantites z0h added
	194	! damping zone for the potential temperatur in case of non-cyclic lateral
	195	! boundaries added
	196	! initialization of ptdf_x, ptdf_y
	197	! initialization of c_u_m, c_u_m_l, c_v_m, c_v_m_l, c_w_m, c_w_m_l
[708]	198	!
[850]	199	! 849 2012-03-15 10:35:09Z raasch
	200	! init_particles renamed lpm_init
	201	!
[826]	202	! 825 2012-02-19 03:03:44Z raasch
	203	! wang_collision_kernel renamed wang_kernel
	204	!
[1]	205	! Revision 1.1 1998/03/09 16:22:22 raasch
	206	! Initial revision
	207	!
	208	!
	209	! Description:
	210	! ------------
[1682]	211	!> Allocation of arrays and initialization of the 3D model via
	212	!> a) pre-run the 1D model
	213	!> or
	214	!> b) pre-set constant linear profiles
	215	!> or
	216	!> c) read values of a previous run
[1]	217	!------------------------------------------------------------------------------!
[1682]	218	SUBROUTINE init_3d_model
	219
[1]	220
[667]	221	USE advec_ws
[1320]	222
[1]	223	USE arrays_3d
[1320]	224
	225	USE cloud_parameters, &
	226	ONLY: nc_const, precipitation_amount, precipitation_rate, prr
	227
	228	USE constants, &
	229	ONLY: pi
	230
[1]	231	USE control_parameters
[1320]	232
	233	USE grid_variables, &
	234	ONLY: dx, dy
	235
[1]	236	USE indices
[1359]	237
[1429]	238	USE lpm_init_mod, &
[1359]	239	ONLY: lpm_init
[1320]	240
	241	USE kinds
[1496]	242
	243	USE land_surface_model_mod, &
[1551]	244	ONLY: init_lsm, init_lsm_arrays, land_surface
[1496]	245
[1241]	246	USE ls_forcing_mod
[1320]	247
	248	USE model_1d, &
	249	ONLY: e1d, kh1d, km1d, l1d, rif1d, u1d, us1d, usws1d, v1d, vsws1d
	250
[51]	251	USE netcdf_control
[1320]	252
	253	USE particle_attributes, &
	254	ONLY: particle_advection, use_sgs_for_particles, wang_kernel
	255
[1]	256	USE pegrid
[1320]	257
[1484]	258	USE plant_canopy_model_mod, &
	259	ONLY: init_plant_canopy, plant_canopy
[1496]	260
	261	USE radiation_model_mod, &
	262	ONLY: init_radiation, radiation
[1484]	263
[1320]	264	USE random_function_mod
	265
[1400]	266	USE random_generator_parallel, &
	267	ONLY: random_number_parallel, random_seed_parallel, random_dummy, &
	268	id_random_array, seq_random_array
	269
[1320]	270	USE statistics, &
	271	ONLY: hom, hom_sum, pr_palm, rmask, spectrum_x, spectrum_y, &
	272	statistic_regions, sums, sums_divnew_l, sums_divold_l, sums_l, &
	273	sums_l_l, sums_up_fraction_l, sums_wsts_bc_l, ts_value, &
[1431]	274	var_d, weight_pres, weight_substep
[1691]	275
	276	USE surface_layer_fluxes_mod, &
	277	ONLY: init_surface_layer_fluxes
	278
[1320]	279	USE transpose_indices
[1]	280
	281	IMPLICIT NONE
	282
[1682]	283	INTEGER(iwp) :: i !<
	284	INTEGER(iwp) :: ind_array(1) !<
	285	INTEGER(iwp) :: j !<
	286	INTEGER(iwp) :: k !<
	287	INTEGER(iwp) :: sr !<
[1]	288
[1682]	289	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !<
[1]	290
[1682]	291	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !<
	292	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !<
[1]	293
[1682]	294	REAL(wp), DIMENSION(1:2) :: volume_flow_area_l !<
	295	REAL(wp), DIMENSION(1:2) :: volume_flow_initial_l !<
[1]	296
[1682]	297	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !<
	298	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !<
[1]	299
[485]	300
[1402]	301	CALL location_message( 'allocating arrays', .FALSE. )
[1]	302	!
	303	!-- Allocate arrays
	304	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
	305	ngp_3d(0:statistic_regions), &
	306	ngp_3d_inner(0:statistic_regions), &
	307	ngp_3d_inner_l(0:statistic_regions), &
[485]	308	ngp_3d_inner_tmp(0:statistic_regions), &
[1]	309	sums_divnew_l(0:statistic_regions), &
	310	sums_divold_l(0:statistic_regions) )
[1195]	311	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
[143]	312	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
[1]	313	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
[132]	314	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
	315	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
[996]	316	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
[87]	317	sums(nzb:nzt+1,pr_palm+max_pr_user), &
	318	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
[1]	319	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
	320	sums_up_fraction_l(10,3,0:statistic_regions), &
[48]	321	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
[394]	322	ts_value(dots_max,0:statistic_regions) )
[978]	323	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
[1]	324
[1691]	325	ALLOCATE( ol(nysg:nyng,nxlg:nxrg), shf(nysg:nyng,nxlg:nxrg), &
[1001]	326	ts(nysg:nyng,nxlg:nxrg), tswst(nysg:nyng,nxlg:nxrg), &
	327	us(nysg:nyng,nxlg:nxrg), usws(nysg:nyng,nxlg:nxrg), &
	328	uswst(nysg:nyng,nxlg:nxrg), vsws(nysg:nyng,nxlg:nxrg), &
	329	vswst(nysg:nyng,nxlg:nxrg), z0(nysg:nyng,nxlg:nxrg), &
[978]	330	z0h(nysg:nyng,nxlg:nxrg) )
[1]	331
[1010]	332	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
	333	kh(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	334	km(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	335	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	336	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	337
	338	#if defined( __nopointer )
	339	ALLOCATE( e(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	340	e_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	341	pt(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	342	pt_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	343	u(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	344	u_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	345	v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	346	v_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	347	w(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	348	w_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	349	te_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	350	tpt_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	351	tu_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	352	tv_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	353	tw_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	354	#else
	355	ALLOCATE( e_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	356	e_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	357	e_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	358	pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	359	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	360	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	361	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	362	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	363	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	364	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	365	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	366	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	367	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	368	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1032]	369	IF ( .NOT. neutral ) THEN
	370	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	371	ENDIF
[1010]	372	#endif
	373
[673]	374	!
[707]	375	!-- Following array is required for perturbation pressure within the iterative
	376	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
	377	!-- the weighted average of the substeps and cannot be used in the Poisson
	378	!-- solver.
	379	IF ( psolver == 'sor' ) THEN
	380	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1575]	381	ELSEIF ( psolver(1:9) == 'multigrid' ) THEN
[707]	382	!
	383	!-- For performance reasons, multigrid is using one ghost layer only
	384	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[673]	385	ENDIF
[1]	386
[1111]	387	!
	388	!-- Array for storing constant coeffficients of the tridiagonal solver
	389	IF ( psolver == 'poisfft' ) THEN
[1212]	390	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
[1111]	391	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
	392	ENDIF
	393
[75]	394	IF ( humidity .OR. passive_scalar ) THEN
[1]	395	!
[75]	396	!-- 2D-humidity/scalar arrays
[1001]	397	ALLOCATE ( qs(nysg:nyng,nxlg:nxrg), &
	398	qsws(nysg:nyng,nxlg:nxrg), &
	399	qswst(nysg:nyng,nxlg:nxrg) )
[1]	400
	401	!
[75]	402	!-- 3D-humidity/scalar arrays
[1010]	403	#if defined( __nopointer )
	404	ALLOCATE( q(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	405	q_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	406	tq_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	407	#else
[667]	408	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	409	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	410	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	411	#endif
[1]	412
	413	!
[75]	414	!-- 3D-arrays needed for humidity only
	415	IF ( humidity ) THEN
[1010]	416	#if defined( __nopointer )
	417	ALLOCATE( vpt(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	418	#else
[667]	419	ALLOCATE( vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	420	#endif
[1]	421
	422	IF ( cloud_physics ) THEN
[1053]	423
[1]	424	!
	425	!-- Liquid water content
[1010]	426	#if defined( __nopointer )
	427	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	428	#else
[667]	429	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1010]	430	#endif
[72]	431	!
	432	!-- Precipitation amount and rate (only needed if output is switched)
[667]	433	ALLOCATE( precipitation_amount(nysg:nyng,nxlg:nxrg), &
	434	precipitation_rate(nysg:nyng,nxlg:nxrg) )
[1053]	435
	436	IF ( icloud_scheme == 0 ) THEN
	437	!
[1115]	438	!-- 1D-arrays
	439	ALLOCATE ( nc_1d(nzb:nzt+1), pt_1d(nzb:nzt+1), &
	440	q_1d(nzb:nzt+1), qc_1d(nzb:nzt+1) )
[1053]	441	!
[1115]	442	!-- 3D-cloud water content
[1053]	443	#if defined( __nopointer )
[1115]	444	ALLOCATE( qc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1053]	445	#else
[1115]	446	ALLOCATE( qc_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1053]	447	#endif
[1115]	448
	449	IF ( precipitation ) THEN
[1053]	450	!
[1115]	451	!-- 1D-arrays
	452	ALLOCATE ( nr_1d(nzb:nzt+1), qr_1d(nzb:nzt+1) )
[1361]	453
[1115]	454	!
	455	!-- 2D-rain water content and rain drop concentration arrays
	456	ALLOCATE ( qrs(nysg:nyng,nxlg:nxrg), &
	457	qrsws(nysg:nyng,nxlg:nxrg), &
	458	qrswst(nysg:nyng,nxlg:nxrg), &
	459	nrs(nysg:nyng,nxlg:nxrg), &
	460	nrsws(nysg:nyng,nxlg:nxrg), &
	461	nrswst(nysg:nyng,nxlg:nxrg) )
	462	!
	463	!-- 3D-rain water content, rain drop concentration arrays
	464	#if defined( __nopointer )
	465	ALLOCATE( nr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	466	nr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	467	qr(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	468	qr_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	469	tnr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	470	tqr_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	471	#else
	472	ALLOCATE( nr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	473	nr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	474	nr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	475	qr_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	476	qr_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	477	qr_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	478	#endif
	479	!
	480	!-- 3d-precipitation rate
[1053]	481	ALLOCATE( prr(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	482	ENDIF
	483
	484	ENDIF
[1]	485	ENDIF
	486
	487	IF ( cloud_droplets ) THEN
	488	!
[1010]	489	!-- Liquid water content, change in liquid water content
	490	#if defined( __nopointer )
	491	ALLOCATE ( ql(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	492	ql_c(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	493	#else
[667]	494	ALLOCATE ( ql_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1010]	495	ql_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	496	#endif
	497	!
	498	!-- Real volume of particles (with weighting), volume of particles
	499	ALLOCATE ( ql_v(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	500	ql_vp(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1]	501	ENDIF
	502
	503	ENDIF
	504
	505	ENDIF
	506
[94]	507	IF ( ocean ) THEN
[1001]	508	ALLOCATE( saswsb(nysg:nyng,nxlg:nxrg), &
	509	saswst(nysg:nyng,nxlg:nxrg) )
[1010]	510	#if defined( __nopointer )
	511	ALLOCATE( prho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	512	rho(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	513	sa(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	514	sa_p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	515	tsa_m(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	516	#else
[667]	517	ALLOCATE( prho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	518	rho_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	519	sa_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	520	sa_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	521	sa_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[388]	522	prho => prho_1
	523	rho => rho_1 ! routines calc_mean_profile and diffusion_e require
	524	! density to be apointer
[1010]	525	#endif
[108]	526	IF ( humidity_remote ) THEN
[667]	527	ALLOCATE( qswst_remote(nysg:nyng,nxlg:nxrg))
[1340]	528	qswst_remote = 0.0_wp
[108]	529	ENDIF
[94]	530	ENDIF
	531
[1]	532	!
	533	!-- 3D-array for storing the dissipation, needed for calculating the sgs
	534	!-- particle velocities
[1171]	535	IF ( use_sgs_for_particles .OR. wang_kernel .OR. turbulence .OR. &
	536	num_acc_per_node > 0 ) THEN
[1153]	537	ALLOCATE( diss(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1]	538	ENDIF
	539
[1340]	540	IF ( dt_dosp /= 9999999.9_wp ) THEN
[1]	541	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
	542	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
[1340]	543	spectrum_x = 0.0_wp
	544	spectrum_y = 0.0_wp
[1431]	545
	546	ALLOCATE( var_d(nzb:nzt+1) )
	547	var_d = 0.0_wp
[1]	548	ENDIF
	549
	550	!
[1299]	551	!-- 1D-array for large scale subsidence velocity
[1361]	552	IF ( .NOT. ALLOCATED( w_subs ) ) THEN
	553	ALLOCATE ( w_subs(nzb:nzt+1) )
	554	w_subs = 0.0_wp
	555	ENDIF
[1299]	556
	557	!
[1400]	558	!-- ID-array and state-space-array for the parallel random number generator
	559	IF ( random_generator == 'random-parallel' ) THEN
	560	ALLOCATE ( seq_random_array(5,nysg:nyng,nxlg:nxrg) )
	561	ALLOCATE ( id_random_array(0:ny,0:nx) )
	562	seq_random_array = 0
	563	id_random_array = 0
	564	ENDIF
	565
	566	!
[51]	567	!-- 4D-array for storing the Rif-values at vertical walls
	568	IF ( topography /= 'flat' ) THEN
[667]	569	ALLOCATE( rif_wall(nzb:nzt+1,nysg:nyng,nxlg:nxrg,1:4) )
[1340]	570	rif_wall = 0.0_wp
[51]	571	ENDIF
	572
	573	!
[106]	574	!-- Arrays to store velocity data from t-dt and the phase speeds which
	575	!-- are needed for radiation boundary conditions
[73]	576	IF ( outflow_l ) THEN
[667]	577	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
	578	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
	579	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
[73]	580	ENDIF
	581	IF ( outflow_r ) THEN
[667]	582	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	583	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	584	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
[73]	585	ENDIF
[106]	586	IF ( outflow_l .OR. outflow_r ) THEN
[667]	587	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
	588	c_w(nzb:nzt+1,nysg:nyng) )
[106]	589	ENDIF
[73]	590	IF ( outflow_s ) THEN
[667]	591	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
	592	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
	593	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
[73]	594	ENDIF
	595	IF ( outflow_n ) THEN
[667]	596	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	597	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	598	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
[73]	599	ENDIF
[106]	600	IF ( outflow_s .OR. outflow_n ) THEN
[667]	601	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
	602	c_w(nzb:nzt+1,nxlg:nxrg) )
[106]	603	ENDIF
[996]	604	IF ( outflow_l .OR. outflow_r .OR. outflow_s .OR. outflow_n ) THEN
[978]	605	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
	606	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
	607	ENDIF
[73]	608
[978]	609
[1010]	610	#if ! defined( __nopointer )
[73]	611	!
[1]	612	!-- Initial assignment of the pointers
[1001]	613	e => e_1; e_p => e_2; te_m => e_3
[1032]	614	IF ( .NOT. neutral ) THEN
	615	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
	616	ELSE
	617	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
	618	ENDIF
[1001]	619	u => u_1; u_p => u_2; tu_m => u_3
	620	v => v_1; v_p => v_2; tv_m => v_3
	621	w => w_1; w_p => w_2; tw_m => w_3
[1]	622
[1001]	623	IF ( humidity .OR. passive_scalar ) THEN
	624	q => q_1; q_p => q_2; tq_m => q_3
[1053]	625	IF ( humidity ) THEN
	626	vpt => vpt_1
	627	IF ( cloud_physics ) THEN
	628	ql => ql_1
	629	IF ( icloud_scheme == 0 ) THEN
[1115]	630	qc => qc_1
	631	IF ( precipitation ) THEN
	632	qr => qr_1; qr_p => qr_2; tqr_m => qr_3
	633	nr => nr_1; nr_p => nr_2; tnr_m => nr_3
	634	ENDIF
[1053]	635	ENDIF
	636	ENDIF
	637	ENDIF
[1001]	638	IF ( cloud_droplets ) THEN
	639	ql => ql_1
	640	ql_c => ql_2
[1]	641	ENDIF
[1001]	642	ENDIF
[1]	643
[1001]	644	IF ( ocean ) THEN
	645	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
	646	ENDIF
[1010]	647	#endif
[1]	648
	649	!
[1551]	650	!-- Allocate land surface model arrays
	651	IF ( land_surface ) THEN
	652	CALL init_lsm_arrays
	653	ENDIF
	654
	655	!
[709]	656	!-- Allocate arrays containing the RK coefficient for calculation of
	657	!-- perturbation pressure and turbulent fluxes. At this point values are
	658	!-- set for pressure calculation during initialization (where no timestep
	659	!-- is done). Further below the values needed within the timestep scheme
	660	!-- will be set.
	661	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
[673]	662	weight_pres(1:intermediate_timestep_count_max) )
[1340]	663	weight_substep = 1.0_wp
	664	weight_pres = 1.0_wp
[709]	665	intermediate_timestep_count = 1 ! needed when simulated_time = 0.0
[673]	666
[1402]	667	CALL location_message( 'finished', .TRUE. )
[673]	668	!
[1]	669	!-- Initialize model variables
[147]	670	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[328]	671	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[1]	672	!
	673	!-- First model run of a possible job queue.
	674	!-- Initial profiles of the variables must be computes.
	675	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
[1384]	676
[1402]	677	CALL location_message( 'initializing with 1D model profiles', .FALSE. )
[1]	678	!
	679	!-- Use solutions of the 1D model as initial profiles,
	680	!-- start 1D model
	681	CALL init_1d_model
	682	!
	683	!-- Transfer initial profiles to the arrays of the 3D model
[667]	684	DO i = nxlg, nxrg
	685	DO j = nysg, nyng
[1]	686	e(:,j,i) = e1d
	687	kh(:,j,i) = kh1d
	688	km(:,j,i) = km1d
	689	pt(:,j,i) = pt_init
	690	u(:,j,i) = u1d
	691	v(:,j,i) = v1d
	692	ENDDO
	693	ENDDO
	694
[75]	695	IF ( humidity .OR. passive_scalar ) THEN
[667]	696	DO i = nxlg, nxrg
	697	DO j = nysg, nyng
[1]	698	q(:,j,i) = q_init
	699	ENDDO
	700	ENDDO
[1353]	701	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
[1115]	702	precipitation ) THEN
[1053]	703	DO i = nxlg, nxrg
	704	DO j = nysg, nyng
[1340]	705	qr(:,j,i) = 0.0_wp
	706	nr(:,j,i) = 0.0_wp
[1053]	707	ENDDO
	708	ENDDO
[1115]	709	!
	710	!-- Initialze nc_1d with default value
	711	nc_1d(:) = nc_const
	712
[1053]	713	ENDIF
[1]	714	ENDIF
	715
	716	IF ( .NOT. constant_diffusion ) THEN
[667]	717	DO i = nxlg, nxrg
	718	DO j = nysg, nyng
[1]	719	e(:,j,i) = e1d
	720	ENDDO
	721	ENDDO
	722	!
	723	!-- Store initial profiles for output purposes etc.
	724	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	725
[1691]	726	IF ( constant_flux_layer ) THEN
[1707]	727	ol = ( zu(nzb+1) - zw(nzb) ) / ( rif1d(nzb+1) + 1.0E-20_wp )
[1340]	728	ts = 0.0_wp ! could actually be computed more accurately in the
	729	! 1D model. Update when opportunity arises.
[1]	730	us = us1d
	731	usws = usws1d
	732	vsws = vsws1d
	733	ELSE
[1340]	734	ts = 0.0_wp ! must be set, because used in
[1691]	735	ol = ( zu(nzb+1) - zw(nzb) ) / zeta_min ! flowste
[1340]	736	us = 0.0_wp
	737	usws = 0.0_wp
	738	vsws = 0.0_wp
[1]	739	ENDIF
	740
	741	ELSE
[1340]	742	e = 0.0_wp ! must be set, because used in
[1691]	743	ol = ( zu(nzb+1) - zw(nzb) ) / zeta_min ! flowste
[1340]	744	ts = 0.0_wp
	745	us = 0.0_wp
	746	usws = 0.0_wp
	747	vsws = 0.0_wp
[1]	748	ENDIF
[102]	749	uswst = top_momentumflux_u
	750	vswst = top_momentumflux_v
[1]	751
	752	!
	753	!-- In every case qs = 0.0 (see also pt)
	754	!-- This could actually be computed more accurately in the 1D model.
	755	!-- Update when opportunity arises!
[1053]	756	IF ( humidity .OR. passive_scalar ) THEN
[1340]	757	qs = 0.0_wp
[1353]	758	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
[1115]	759	precipitation ) THEN
[1340]	760	qrs = 0.0_wp
	761	nrs = 0.0_wp
[1053]	762	ENDIF
	763	ENDIF
[1]	764
	765	!
	766	IF ( topography /= 'flat' ) THEN
	767	DO i = nxl-1, nxr+1
	768	DO j = nys-1, nyn+1
[1340]	769	u(nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
	770	v(nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
[1]	771	ENDDO
	772	ENDDO
[667]	773
[1]	774	!
	775	!-- WARNING: The extra boundary conditions set after running the
	776	!-- ------- 1D model impose an error on the divergence one layer
	777	!-- below the topography; need to correct later
	778	!-- ATTENTION: Provisional correction for Piacsek & Williams
	779	!-- --------- advection scheme: keep u and v zero one layer below
	780	!-- the topography.
[667]	781	IF ( ibc_uv_b == 1 ) THEN
	782	!
[1]	783	!-- Neumann condition
	784	DO i = nxl-1, nxr+1
	785	DO j = nys-1, nyn+1
	786	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
	787	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
	788	ENDDO
	789	ENDDO
	790
	791	ENDIF
	792
	793	ENDIF
	794
[1402]	795	CALL location_message( 'finished', .TRUE. )
[1384]	796
[1]	797	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
	798	THEN
[1241]	799
[1402]	800	CALL location_message( 'initializing with constant profiles', .FALSE. )
[1]	801	!
[1241]	802	!-- Overwrite initial profiles in case of nudging
	803	IF ( nudging ) THEN
	804	pt_init = ptnudge(:,1)
	805	u_init = unudge(:,1)
	806	v_init = vnudge(:,1)
	807	IF ( humidity .OR. passive_scalar ) THEN
	808	q_init = qnudge(:,1)
	809	ENDIF
	810
	811	WRITE( message_string, * ) 'Initial profiles of u, v and ', &
	812	'scalars from NUDGING_DATA are used.'
	813	CALL message( 'init_3d_model', 'PA0370', 0, 0, 0, 6, 0 )
	814	ENDIF
	815
	816	!
[1]	817	!-- Use constructed initial profiles (velocity constant with height,
	818	!-- temperature profile with constant gradient)
[667]	819	DO i = nxlg, nxrg
	820	DO j = nysg, nyng
[1]	821	pt(:,j,i) = pt_init
	822	u(:,j,i) = u_init
	823	v(:,j,i) = v_init
	824	ENDDO
	825	ENDDO
[75]	826
[1]	827	!
[292]	828	!-- Set initial horizontal velocities at the lowest computational grid
	829	!-- levels to zero in order to avoid too small time steps caused by the
	830	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
	831	!-- in the limiting formula!). The original values are stored to be later
	832	!-- used for volume flow control.
[1507]	833	IF ( ibc_uv_b /= 1 ) THEN
[1406]	834	DO i = nxlg, nxrg
	835	DO j = nysg, nyng
	836	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0_wp
	837	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0_wp
	838	ENDDO
[1]	839	ENDDO
[1406]	840	ENDIF
[1]	841
[75]	842	IF ( humidity .OR. passive_scalar ) THEN
[667]	843	DO i = nxlg, nxrg
	844	DO j = nysg, nyng
[1]	845	q(:,j,i) = q_init
	846	ENDDO
	847	ENDDO
[1115]	848	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	849	!
	850	!-- Initialze nc_1d with default value
	851	nc_1d(:) = nc_const
	852
	853	IF ( precipitation ) THEN
	854	DO i = nxlg, nxrg
	855	DO j = nysg, nyng
[1340]	856	qr(:,j,i) = 0.0_wp
	857	nr(:,j,i) = 0.0_wp
[1115]	858	ENDDO
[1053]	859	ENDDO
[1115]	860	ENDIF
	861
[1053]	862	ENDIF
[1]	863	ENDIF
	864
[94]	865	IF ( ocean ) THEN
[667]	866	DO i = nxlg, nxrg
	867	DO j = nysg, nyng
[94]	868	sa(:,j,i) = sa_init
	869	ENDDO
	870	ENDDO
	871	ENDIF
[1]	872
	873	IF ( constant_diffusion ) THEN
	874	km = km_constant
	875	kh = km / prandtl_number
[1340]	876	e = 0.0_wp
	877	ELSEIF ( e_init > 0.0_wp ) THEN
[108]	878	DO k = nzb+1, nzt
[1340]	879	km(k,:,:) = 0.1_wp * l_grid(k) * SQRT( e_init )
[108]	880	ENDDO
	881	km(nzb,:,:) = km(nzb+1,:,:)
	882	km(nzt+1,:,:) = km(nzt,:,:)
	883	kh = km / prandtl_number
	884	e = e_init
[1]	885	ELSE
[108]	886	IF ( .NOT. ocean ) THEN
[1340]	887	kh = 0.01_wp ! there must exist an initial diffusion, because
	888	km = 0.01_wp ! otherwise no TKE would be produced by the
[108]	889	! production terms, as long as not yet
	890	! e = (u/cm)*2 at k=nzb+1
	891	ELSE
[1340]	892	kh = 0.00001_wp
	893	km = 0.00001_wp
[108]	894	ENDIF
[1340]	895	e = 0.0_wp
[1]	896	ENDIF
[1691]	897	ol = ( zu(nzb+1) - zw(nzb) ) / zeta_min
[1340]	898	ts = 0.0_wp
	899	us = 0.0_wp
	900	usws = 0.0_wp
[102]	901	uswst = top_momentumflux_u
[1340]	902	vsws = 0.0_wp
[102]	903	vswst = top_momentumflux_v
[1340]	904	IF ( humidity .OR. passive_scalar ) qs = 0.0_wp
[1]	905
	906	!
	907	!-- Compute initial temperature field and other constants used in case
	908	!-- of a sloping surface
	909	IF ( sloping_surface ) CALL init_slope
	910
[1402]	911	CALL location_message( 'finished', .TRUE. )
[1384]	912
[46]	913	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
	914	THEN
[1384]	915
[1402]	916	CALL location_message( 'initializing by user', .FALSE. )
[46]	917	!
	918	!-- Initialization will completely be done by the user
	919	CALL user_init_3d_model
	920
[1402]	921	CALL location_message( 'finished', .TRUE. )
[1384]	922
[1]	923	ENDIF
[1384]	924
[1402]	925	CALL location_message( 'initializing statistics, boundary conditions, etc.', &
	926	.FALSE. )
[1384]	927
[667]	928	!
	929	!-- Bottom boundary
	930	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
[1340]	931	u(nzb,:,:) = 0.0_wp
	932	v(nzb,:,:) = 0.0_wp
[667]	933	ENDIF
[1]	934
	935	!
[151]	936	!-- Apply channel flow boundary condition
[132]	937	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
[1340]	938	u(nzt+1,:,:) = 0.0_wp
	939	v(nzt+1,:,:) = 0.0_wp
[132]	940	ENDIF
	941
	942	!
[1]	943	!-- Calculate virtual potential temperature
[1340]	944	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
[1]	945
	946	!
	947	!-- Store initial profiles for output purposes etc.
	948	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	949	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
[667]	950	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
[1340]	951	hom(nzb,1,5,:) = 0.0_wp
	952	hom(nzb,1,6,:) = 0.0_wp
[1]	953	ENDIF
	954	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	955	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
	956	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
	957
[97]	958	IF ( ocean ) THEN
	959	!
	960	!-- Store initial salinity profile
	961	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
	962	ENDIF
[1]	963
[75]	964	IF ( humidity ) THEN
[1]	965	!
	966	!-- Store initial profile of total water content, virtual potential
	967	!-- temperature
	968	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	969	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
	970	IF ( cloud_physics .OR. cloud_droplets ) THEN
	971	!
	972	!-- Store initial profile of specific humidity and potential
	973	!-- temperature
	974	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	975	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	976	ENDIF
	977	ENDIF
	978
	979	IF ( passive_scalar ) THEN
	980	!
	981	!-- Store initial scalar profile
	982	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	983	ENDIF
	984
	985	!
[1400]	986	!-- Initialize the random number generators (from numerical recipes)
	987	CALL random_function_ini
[1429]	988
[1400]	989	IF ( random_generator == 'random-parallel' ) THEN
[1429]	990	!-- Asigning an ID to every vertical gridpoint column
	991	!-- dependig on the ensemble run number.
	992	random_dummy=1
[1400]	993	DO j=0,ny
	994	DO i=0,nx
[1429]	995	id_random_array(j,i) = random_dummy + 1E6 * ( ensemble_member_nr - 1000 )
	996	random_dummy = random_dummy + 1
[1400]	997	END DO
	998	ENDDO
[1429]	999	!-- Initializing with random_seed_parallel for every vertical
	1000	!-- gridpoint column.
	1001	random_dummy=0
[1400]	1002	DO j = nysg, nyng
	1003	DO i = nxlg, nxrg
	1004	CALL random_seed_parallel (random_sequence=id_random_array(j, i))
	1005	CALL random_number_parallel (random_dummy)
	1006	CALL random_seed_parallel (get=seq_random_array(:, j, i))
	1007	END DO
	1008	ENDDO
	1009	ENDIF
	1010
	1011	!
[19]	1012	!-- Initialize fluxes at bottom surface
[1]	1013	IF ( use_surface_fluxes ) THEN
	1014
	1015	IF ( constant_heatflux ) THEN
	1016	!
	1017	!-- Heat flux is prescribed
	1018	IF ( random_heatflux ) THEN
	1019	CALL disturb_heatflux
	1020	ELSE
	1021	shf = surface_heatflux
	1022	!
[1241]	1023	!-- Initialize shf with data from external file LSF_DATA
	1024	IF ( large_scale_forcing .AND. lsf_surf ) THEN
	1025	CALL ls_forcing_surf ( simulated_time )
	1026	ENDIF
	1027
	1028	!
[1]	1029	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
	1030	IF ( TRIM( topography ) /= 'flat' ) THEN
[667]	1031	DO i = nxlg, nxrg
	1032	DO j = nysg, nyng
[1]	1033	IF ( nzb_s_inner(j,i) /= 0 ) THEN
	1034	shf(j,i) = wall_heatflux(0)
	1035	ENDIF
	1036	ENDDO
	1037	ENDDO
	1038	ENDIF
	1039	ENDIF
	1040	ENDIF
	1041
	1042	!
	1043	!-- Determine the near-surface water flux
[75]	1044	IF ( humidity .OR. passive_scalar ) THEN
[1115]	1045	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1046	precipitation ) THEN
[1340]	1047	qrsws = 0.0_wp
	1048	nrsws = 0.0_wp
[1053]	1049	ENDIF
[1]	1050	IF ( constant_waterflux ) THEN
	1051	qsws = surface_waterflux
[407]	1052	!
	1053	!-- Over topography surface_waterflux is replaced by
	1054	!-- wall_humidityflux(0)
	1055	IF ( TRIM( topography ) /= 'flat' ) THEN
	1056	wall_qflux = wall_humidityflux
[667]	1057	DO i = nxlg, nxrg
	1058	DO j = nysg, nyng
[407]	1059	IF ( nzb_s_inner(j,i) /= 0 ) THEN
	1060	qsws(j,i) = wall_qflux(0)
	1061	ENDIF
	1062	ENDDO
	1063	ENDDO
	1064	ENDIF
[1]	1065	ENDIF
	1066	ENDIF
	1067
	1068	ENDIF
	1069
	1070	!
[19]	1071	!-- Initialize fluxes at top surface
[94]	1072	!-- Currently, only the heatflux and salinity flux can be prescribed.
	1073	!-- The latent flux is zero in this case!
[19]	1074	IF ( use_top_fluxes ) THEN
	1075
	1076	IF ( constant_top_heatflux ) THEN
	1077	!
	1078	!-- Heat flux is prescribed
	1079	tswst = top_heatflux
	1080
[1053]	1081	IF ( humidity .OR. passive_scalar ) THEN
[1340]	1082	qswst = 0.0_wp
[1115]	1083	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1084	precipitation ) THEN
[1340]	1085	nrswst = 0.0_wp
	1086	qrswst = 0.0_wp
[1053]	1087	ENDIF
	1088	ENDIF
[94]	1089
	1090	IF ( ocean ) THEN
[95]	1091	saswsb = bottom_salinityflux
[94]	1092	saswst = top_salinityflux
	1093	ENDIF
[102]	1094	ENDIF
[19]	1095
[102]	1096	!
	1097	!-- Initialization in case of a coupled model run
	1098	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
[1340]	1099	tswst = 0.0_wp
[102]	1100	ENDIF
	1101
[19]	1102	ENDIF
	1103
	1104	!
[1]	1105	!-- Initialize Prandtl layer quantities
[1691]	1106	IF ( constant_flux_layer ) THEN
[1]	1107
	1108	z0 = roughness_length
[978]	1109	z0h = z0h_factor * z0
[1]	1110
	1111	IF ( .NOT. constant_heatflux ) THEN
	1112	!
	1113	!-- Surface temperature is prescribed. Here the heat flux cannot be
[1691]	1114	!-- simply estimated, because therefore ol, u* and theta* would have
[1]	1115	!-- to be computed by iteration. This is why the heat flux is assumed
	1116	!-- to be zero before the first time step. It approaches its correct
	1117	!-- value in the course of the first few time steps.
[1340]	1118	shf = 0.0_wp
[1]	1119	ENDIF
	1120
[75]	1121	IF ( humidity .OR. passive_scalar ) THEN
[1340]	1122	IF ( .NOT. constant_waterflux ) qsws = 0.0_wp
[1115]	1123	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1124	precipitation ) THEN
[1340]	1125	qrsws = 0.0_wp
	1126	nrsws = 0.0_wp
[1053]	1127	ENDIF
[1]	1128	ENDIF
	1129
	1130	ENDIF
	1131
[1179]	1132	!
	1133	!-- Set the reference state to be used in the buoyancy terms (for ocean runs
	1134	!-- the reference state will be set (overwritten) in init_ocean)
	1135	IF ( use_single_reference_value ) THEN
	1136	IF ( .NOT. humidity ) THEN
	1137	ref_state(:) = pt_reference
	1138	ELSE
	1139	ref_state(:) = vpt_reference
	1140	ENDIF
	1141	ELSE
	1142	IF ( .NOT. humidity ) THEN
	1143	ref_state(:) = pt_init(:)
	1144	ELSE
	1145	ref_state(:) = vpt(:,nys,nxl)
	1146	ENDIF
	1147	ENDIF
[152]	1148
	1149	!
[707]	1150	!-- For the moment, vertical velocity is zero
[1340]	1151	w = 0.0_wp
[1]	1152
	1153	!
	1154	!-- Initialize array sums (must be defined in first call of pres)
[1340]	1155	sums = 0.0_wp
[1]	1156
	1157	!
[707]	1158	!-- In case of iterative solvers, p must get an initial value
[1575]	1159	IF ( psolver(1:9) == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
[707]	1160
	1161	!
[72]	1162	!-- Treating cloud physics, liquid water content and precipitation amount
	1163	!-- are zero at beginning of the simulation
	1164	IF ( cloud_physics ) THEN
[1340]	1165	ql = 0.0_wp
	1166	IF ( precipitation ) precipitation_amount = 0.0_wp
[1115]	1167	IF ( icloud_scheme == 0 ) THEN
[1340]	1168	qc = 0.0_wp
[1115]	1169	nc_1d = nc_const
	1170	ENDIF
[72]	1171	ENDIF
[673]	1172	!
[1]	1173	!-- Impose vortex with vertical axis on the initial velocity profile
	1174	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	1175	CALL init_rankine
	1176	ENDIF
	1177
	1178	!
	1179	!-- Impose temperature anomaly (advection test only)
	1180	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
	1181	CALL init_pt_anomaly
	1182	ENDIF
	1183
	1184	!
	1185	!-- If required, change the surface temperature at the start of the 3D run
[1340]	1186	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
[1]	1187	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	1188	ENDIF
	1189
	1190	!
	1191	!-- If required, change the surface humidity/scalar at the start of the 3D
	1192	!-- run
[75]	1193	IF ( ( humidity .OR. passive_scalar ) .AND. &
[1340]	1194	q_surface_initial_change /= 0.0_wp ) THEN
[1]	1195	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
	1196	ENDIF
	1197
	1198	!
	1199	!-- Initialize old and new time levels.
[1340]	1200	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]	1201	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
	1202
[75]	1203	IF ( humidity .OR. passive_scalar ) THEN
[1340]	1204	tq_m = 0.0_wp
[1]	1205	q_p = q
[1115]	1206	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1207	precipitation ) THEN
[1340]	1208	tqr_m = 0.0_wp
[1053]	1209	qr_p = qr
[1340]	1210	tnr_m = 0.0_wp
[1053]	1211	nr_p = nr
	1212	ENDIF
[1]	1213	ENDIF
	1214
[94]	1215	IF ( ocean ) THEN
[1340]	1216	tsa_m = 0.0_wp
[94]	1217	sa_p = sa
	1218	ENDIF
[667]	1219
[1402]	1220	CALL location_message( 'finished', .TRUE. )
[94]	1221
[147]	1222	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
[667]	1223	TRIM( initializing_actions ) == 'cyclic_fill' ) &
[1]	1224	THEN
[1384]	1225
[1402]	1226	CALL location_message( 'initializing in case of restart / cyclic_fill', &
	1227	.FALSE. )
[1]	1228	!
[767]	1229	!-- When reading data for cyclic fill of 3D prerun data files, read
	1230	!-- some of the global variables from the restart file which are required
	1231	!-- for initializing the inflow
[328]	1232	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[559]	1233
[759]	1234	DO i = 0, io_blocks-1
	1235	IF ( i == io_group ) THEN
	1236	CALL read_parts_of_var_list
	1237	CALL close_file( 13 )
	1238	ENDIF
	1239	#if defined( __parallel )
	1240	CALL MPI_BARRIER( comm2d, ierr )
	1241	#endif
	1242	ENDDO
[328]	1243
[767]	1244	ENDIF
	1245
[151]	1246	!
[767]	1247	!-- Read binary data from restart file
	1248	DO i = 0, io_blocks-1
	1249	IF ( i == io_group ) THEN
	1250	CALL read_3d_binary
	1251	ENDIF
	1252	#if defined( __parallel )
	1253	CALL MPI_BARRIER( comm2d, ierr )
	1254	#endif
	1255	ENDDO
	1256
[328]	1257	!
[767]	1258	!-- Initialization of the turbulence recycling method
	1259	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
	1260	turbulent_inflow ) THEN
	1261	!
	1262	!-- First store the profiles to be used at the inflow.
	1263	!-- These profiles are the (temporally) and horizontally averaged vertical
	1264	!-- profiles from the prerun. Alternatively, prescribed profiles
	1265	!-- for u,v-components can be used.
[1615]	1266	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,6) )
[151]	1267
[767]	1268	IF ( use_prescribed_profile_data ) THEN
	1269	mean_inflow_profiles(:,1) = u_init ! u
	1270	mean_inflow_profiles(:,2) = v_init ! v
	1271	ELSE
[328]	1272	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
	1273	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
[767]	1274	ENDIF
	1275	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
	1276	mean_inflow_profiles(:,5) = hom_sum(:,8,0) ! e
[1615]	1277	mean_inflow_profiles(:,6) = hom_sum(:,41,0) ! q
[151]	1278
	1279	!
[767]	1280	!-- If necessary, adjust the horizontal flow field to the prescribed
	1281	!-- profiles
	1282	IF ( use_prescribed_profile_data ) THEN
	1283	DO i = nxlg, nxrg
[667]	1284	DO j = nysg, nyng
[328]	1285	DO k = nzb, nzt+1
[767]	1286	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
	1287	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
[328]	1288	ENDDO
[151]	1289	ENDDO
[767]	1290	ENDDO
	1291	ENDIF
[151]	1292
	1293	!
[767]	1294	!-- Use these mean profiles at the inflow (provided that Dirichlet
	1295	!-- conditions are used)
	1296	IF ( inflow_l ) THEN
	1297	DO j = nysg, nyng
	1298	DO k = nzb, nzt+1
	1299	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
	1300	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
[1340]	1301	w(k,j,nxlg:-1) = 0.0_wp
[767]	1302	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
	1303	e(k,j,nxlg:-1) = mean_inflow_profiles(k,5)
[1615]	1304	IF ( humidity .OR. passive_scalar ) &
	1305	q(k,j,nxlg:-1) = mean_inflow_profiles(k,6)
[767]	1306	ENDDO
	1307	ENDDO
	1308	ENDIF
	1309
[151]	1310	!
[767]	1311	!-- Calculate the damping factors to be used at the inflow. For a
	1312	!-- turbulent inflow the turbulent fluctuations have to be limited
	1313	!-- vertically because otherwise the turbulent inflow layer will grow
	1314	!-- in time.
[1340]	1315	IF ( inflow_damping_height == 9999999.9_wp ) THEN
[767]	1316	!
	1317	!-- Default: use the inversion height calculated by the prerun; if
	1318	!-- this is zero, inflow_damping_height must be explicitly
	1319	!-- specified.
[1340]	1320	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
[767]	1321	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
	1322	ELSE
	1323	WRITE( message_string, * ) 'inflow_damping_height must be ',&
	1324	'explicitly specified because&the inversion height ', &
	1325	'calculated by the prerun is zero.'
	1326	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
[292]	1327	ENDIF
[151]	1328
[767]	1329	ENDIF
	1330
[1340]	1331	IF ( inflow_damping_width == 9999999.9_wp ) THEN
[151]	1332	!
[767]	1333	!-- Default for the transition range: one tenth of the undamped
	1334	!-- layer
[1340]	1335	inflow_damping_width = 0.1_wp * inflow_damping_height
[151]	1336
[767]	1337	ENDIF
[151]	1338
[767]	1339	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
[151]	1340
[767]	1341	DO k = nzb, nzt+1
[151]	1342
[767]	1343	IF ( zu(k) <= inflow_damping_height ) THEN
[1340]	1344	inflow_damping_factor(k) = 1.0_wp
[996]	1345	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
[1340]	1346	inflow_damping_factor(k) = 1.0_wp - &
[996]	1347	( zu(k) - inflow_damping_height ) / &
	1348	inflow_damping_width
[767]	1349	ELSE
[1340]	1350	inflow_damping_factor(k) = 0.0_wp
[767]	1351	ENDIF
[151]	1352
[767]	1353	ENDDO
[151]	1354
[147]	1355	ENDIF
	1356
[152]	1357	!
[359]	1358	!-- Inside buildings set velocities and TKE back to zero
	1359	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
	1360	topography /= 'flat' ) THEN
	1361	!
	1362	!-- Inside buildings set velocities and TKE back to zero.
	1363	!-- Other scalars (pt, q, s, km, kh, p, sa, ...) are ignored at present,
	1364	!-- maybe revise later.
[1001]	1365	DO i = nxlg, nxrg
	1366	DO j = nysg, nyng
[1340]	1367	u (nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
	1368	v (nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
	1369	w (nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
	1370	e (nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
	1371	tu_m(nzb:nzb_u_inner(j,i),j,i) = 0.0_wp
	1372	tv_m(nzb:nzb_v_inner(j,i),j,i) = 0.0_wp
	1373	tw_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
	1374	te_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
	1375	tpt_m(nzb:nzb_w_inner(j,i),j,i) = 0.0_wp
[359]	1376	ENDDO
[1001]	1377	ENDDO
[359]	1378
	1379	ENDIF
	1380
	1381	!
[1]	1382	!-- Calculate initial temperature field and other constants used in case
	1383	!-- of a sloping surface
	1384	IF ( sloping_surface ) CALL init_slope
	1385
	1386	!
	1387	!-- Initialize new time levels (only done in order to set boundary values
	1388	!-- including ghost points)
	1389	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
[1053]	1390	IF ( humidity .OR. passive_scalar ) THEN
	1391	q_p = q
[1115]	1392	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1393	precipitation ) THEN
[1053]	1394	qr_p = qr
	1395	nr_p = nr
	1396	ENDIF
	1397	ENDIF
[94]	1398	IF ( ocean ) sa_p = sa
[1]	1399
[181]	1400	!
	1401	!-- Allthough tendency arrays are set in prognostic_equations, they have
	1402	!-- have to be predefined here because they are used (but multiplied with 0)
	1403	!-- there before they are set.
[1340]	1404	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]	1405	IF ( humidity .OR. passive_scalar ) THEN
[1340]	1406	tq_m = 0.0_wp
[1115]	1407	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	1408	precipitation ) THEN
[1340]	1409	tqr_m = 0.0_wp
	1410	tnr_m = 0.0_wp
[1053]	1411	ENDIF
	1412	ENDIF
[1340]	1413	IF ( ocean ) tsa_m = 0.0_wp
[181]	1414
[1402]	1415	CALL location_message( 'finished', .TRUE. )
[1384]	1416
[1]	1417	ELSE
	1418	!
	1419	!-- Actually this part of the programm should not be reached
[254]	1420	message_string = 'unknown initializing problem'
	1421	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
[1]	1422	ENDIF
	1423
[151]	1424
	1425	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
[1]	1426	!
[151]	1427	!-- Initialize old timelevels needed for radiation boundary conditions
	1428	IF ( outflow_l ) THEN
	1429	u_m_l(:,:,:) = u(:,:,1:2)
	1430	v_m_l(:,:,:) = v(:,:,0:1)
	1431	w_m_l(:,:,:) = w(:,:,0:1)
	1432	ENDIF
	1433	IF ( outflow_r ) THEN
	1434	u_m_r(:,:,:) = u(:,:,nx-1:nx)
	1435	v_m_r(:,:,:) = v(:,:,nx-1:nx)
	1436	w_m_r(:,:,:) = w(:,:,nx-1:nx)
	1437	ENDIF
	1438	IF ( outflow_s ) THEN
	1439	u_m_s(:,:,:) = u(:,0:1,:)
	1440	v_m_s(:,:,:) = v(:,1:2,:)
	1441	w_m_s(:,:,:) = w(:,0:1,:)
	1442	ENDIF
	1443	IF ( outflow_n ) THEN
	1444	u_m_n(:,:,:) = u(:,ny-1:ny,:)
	1445	v_m_n(:,:,:) = v(:,ny-1:ny,:)
	1446	w_m_n(:,:,:) = w(:,ny-1:ny,:)
	1447	ENDIF
[667]	1448
[151]	1449	ENDIF
[680]	1450
[667]	1451	!
	1452	!-- Calculate the initial volume flow at the right and north boundary
[709]	1453	IF ( conserve_volume_flow ) THEN
[151]	1454
[767]	1455	IF ( use_prescribed_profile_data ) THEN
[667]	1456
[1340]	1457	volume_flow_initial_l = 0.0_wp
	1458	volume_flow_area_l = 0.0_wp
[732]	1459
[667]	1460	IF ( nxr == nx ) THEN
	1461	DO j = nys, nyn
[709]	1462	DO k = nzb_2d(j,nx)+1, nzt
[667]	1463	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[767]	1464	u_init(k) * dzw(k)
	1465	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1466	ENDDO
	1467	ENDDO
	1468	ENDIF
	1469
	1470	IF ( nyn == ny ) THEN
	1471	DO i = nxl, nxr
	1472	DO k = nzb_2d(ny,i)+1, nzt
	1473	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1474	v_init(k) * dzw(k)
	1475	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1476	ENDDO
	1477	ENDDO
	1478	ENDIF
	1479
	1480	#if defined( __parallel )
	1481	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1482	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1483	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1484	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1485
	1486	#else
	1487	volume_flow_initial = volume_flow_initial_l
	1488	volume_flow_area = volume_flow_area_l
	1489	#endif
	1490
	1491	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1492
[1340]	1493	volume_flow_initial_l = 0.0_wp
	1494	volume_flow_area_l = 0.0_wp
[767]	1495
	1496	IF ( nxr == nx ) THEN
	1497	DO j = nys, nyn
	1498	DO k = nzb_2d(j,nx)+1, nzt
	1499	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[667]	1500	hom_sum(k,1,0) * dzw(k)
	1501	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1502	ENDDO
	1503	ENDDO
	1504	ENDIF
	1505
	1506	IF ( nyn == ny ) THEN
	1507	DO i = nxl, nxr
[709]	1508	DO k = nzb_2d(ny,i)+1, nzt
[667]	1509	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
[709]	1510	hom_sum(k,2,0) * dzw(k)
[667]	1511	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1512	ENDDO
	1513	ENDDO
	1514	ENDIF
	1515
[732]	1516	#if defined( __parallel )
	1517	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1518	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1519	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1520	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1521
	1522	#else
	1523	volume_flow_initial = volume_flow_initial_l
	1524	volume_flow_area = volume_flow_area_l
	1525	#endif
	1526
[667]	1527	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	1528
[1340]	1529	volume_flow_initial_l = 0.0_wp
	1530	volume_flow_area_l = 0.0_wp
[732]	1531
[667]	1532	IF ( nxr == nx ) THEN
	1533	DO j = nys, nyn
[709]	1534	DO k = nzb_2d(j,nx)+1, nzt
[667]	1535	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[709]	1536	u(k,j,nx) * dzw(k)
[667]	1537	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k)
	1538	ENDDO
	1539	ENDDO
	1540	ENDIF
	1541
	1542	IF ( nyn == ny ) THEN
	1543	DO i = nxl, nxr
[709]	1544	DO k = nzb_2d(ny,i)+1, nzt
[667]	1545	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1546	v(k,ny,i) * dzw(k)
	1547	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k)
	1548	ENDDO
	1549	ENDDO
	1550	ENDIF
	1551
	1552	#if defined( __parallel )
[732]	1553	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1554	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1555	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1556	2, MPI_REAL, MPI_SUM, comm2d, ierr )
[667]	1557
	1558	#else
[732]	1559	volume_flow_initial = volume_flow_initial_l
	1560	volume_flow_area = volume_flow_area_l
[667]	1561	#endif
	1562
[732]	1563	ENDIF
	1564
[151]	1565	!
[709]	1566	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
	1567	!-- from u\|v_bulk instead
[680]	1568	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
	1569	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
	1570	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
	1571	ENDIF
[667]	1572
[680]	1573	ENDIF
	1574
[787]	1575	!
	1576	!-- Initialize quantities for special advections schemes
	1577	CALL init_advec
[680]	1578
[667]	1579	!
[680]	1580	!-- Impose random perturbation on the horizontal velocity field and then
	1581	!-- remove the divergences from the velocity field at the initial stage
	1582	IF ( create_disturbances .AND. &
	1583	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
	1584	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
	1585
[1402]	1586	CALL location_message( 'creating initial disturbances', .FALSE. )
[680]	1587	CALL disturb_field( nzb_u_inner, tend, u )
	1588	CALL disturb_field( nzb_v_inner, tend, v )
[1402]	1589	CALL location_message( 'finished', .TRUE. )
[1384]	1590
[1402]	1591	CALL location_message( 'calling pressure solver', .FALSE. )
[680]	1592	n_sor = nsor_ini
[1221]	1593	!$acc data copyin( d, ddzu, ddzw, nzb_s_inner, nzb_u_inner ) &
	1594	!$acc copyin( nzb_v_inner, nzb_w_inner, p, rflags_s_inner, tend ) &
	1595	!$acc copyin( weight_pres, weight_substep ) &
	1596	!$acc copy( tri, tric, u, v, w )
[680]	1597	CALL pres
[1111]	1598	!$acc end data
[680]	1599	n_sor = nsor
[1402]	1600	CALL location_message( 'finished', .TRUE. )
[1384]	1601
[680]	1602	ENDIF
	1603
	1604	!
[1484]	1605	!-- If required, initialize quantities needed for the plant canopy model
	1606	IF ( plant_canopy ) CALL init_plant_canopy
[138]	1607
	1608	!
[1]	1609	!-- If required, initialize dvrp-software
[1340]	1610	IF ( dt_dvrp /= 9999999.9_wp ) CALL init_dvrp
[1]	1611
[96]	1612	IF ( ocean ) THEN
[1]	1613	!
[96]	1614	!-- Initialize quantities needed for the ocean model
	1615	CALL init_ocean
[388]	1616
[96]	1617	ELSE
	1618	!
	1619	!-- Initialize quantities for handling cloud physics
[849]	1620	!-- This routine must be called before lpm_init, because
[96]	1621	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
[849]	1622	!-- lpm_init) is not defined.
[96]	1623	CALL init_cloud_physics
	1624	ENDIF
[1]	1625
	1626	!
	1627	!-- If required, initialize particles
[849]	1628	IF ( particle_advection ) CALL lpm_init
[1]	1629
[1585]	1630	!
	1631	!-- If required, initialize quantities needed for the LSM
	1632	IF ( land_surface ) THEN
	1633	CALL location_message( 'initializing land surface model', .FALSE. )
	1634	CALL init_lsm
	1635	CALL location_message( 'finished', .TRUE. )
	1636	ENDIF
[1496]	1637
[1]	1638	!
[1691]	1639	!-- Initialize surface layer (done after LSM as roughness length are required
	1640	!-- for initialization
	1641	IF ( constant_flux_layer ) THEN
	1642	CALL location_message( 'initializing surface layer', .FALSE. )
	1643	CALL init_surface_layer_fluxes
	1644	CALL location_message( 'finished', .TRUE. )
	1645	ENDIF
	1646
	1647	!
[1496]	1648	!-- If required, initialize radiation model
	1649	IF ( radiation ) THEN
[1585]	1650	CALL location_message( 'initializing radiation model', .FALSE. )
[1496]	1651	CALL init_radiation
[1585]	1652	CALL location_message( 'finished', .TRUE. )
[1496]	1653	ENDIF
	1654
	1655	!
[673]	1656	!-- Initialize the ws-scheme.
	1657	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
[1]	1658
	1659	!
[709]	1660	!-- Setting weighting factors for calculation of perturbation pressure
	1661	!-- and turbulent quantities from the RK substeps
	1662	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
	1663
[1322]	1664	weight_substep(1) = 1._wp/6._wp
	1665	weight_substep(2) = 3._wp/10._wp
	1666	weight_substep(3) = 8._wp/15._wp
[709]	1667
[1322]	1668	weight_pres(1) = 1._wp/3._wp
	1669	weight_pres(2) = 5._wp/12._wp
	1670	weight_pres(3) = 1._wp/4._wp
[709]	1671
	1672	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
	1673
[1322]	1674	weight_substep(1) = 1._wp/2._wp
	1675	weight_substep(2) = 1._wp/2._wp
[673]	1676
[1322]	1677	weight_pres(1) = 1._wp/2._wp
	1678	weight_pres(2) = 1._wp/2._wp
[709]	1679
[1001]	1680	ELSE ! for Euler-method
[709]	1681
[1340]	1682	weight_substep(1) = 1.0_wp
	1683	weight_pres(1) = 1.0_wp
[709]	1684
[673]	1685	ENDIF
	1686
	1687	!
[1]	1688	!-- Initialize Rayleigh damping factors
[1340]	1689	rdf = 0.0_wp
	1690	rdf_sc = 0.0_wp
	1691	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
[108]	1692	IF ( .NOT. ocean ) THEN
	1693	DO k = nzb+1, nzt
	1694	IF ( zu(k) >= rayleigh_damping_height ) THEN
	1695	rdf(k) = rayleigh_damping_factor * &
[1340]	1696	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
	1697	/ ( zu(nzt) - rayleigh_damping_height ) )&
[1]	1698	)**2
[108]	1699	ENDIF
	1700	ENDDO
	1701	ELSE
	1702	DO k = nzt, nzb+1, -1
	1703	IF ( zu(k) <= rayleigh_damping_height ) THEN
	1704	rdf(k) = rayleigh_damping_factor * &
[1340]	1705	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
	1706	/ ( rayleigh_damping_height - zu(nzb+1)))&
[108]	1707	)**2
	1708	ENDIF
	1709	ENDDO
	1710	ENDIF
[1]	1711	ENDIF
[785]	1712	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
[1]	1713
	1714	!
[240]	1715	!-- Initialize the starting level and the vertical smoothing factor used for
	1716	!-- the external pressure gradient
[1340]	1717	dp_smooth_factor = 1.0_wp
[240]	1718	IF ( dp_external ) THEN
	1719	!
	1720	!-- Set the starting level dp_level_ind_b only if it has not been set before
	1721	!-- (e.g. in init_grid).
	1722	IF ( dp_level_ind_b == 0 ) THEN
	1723	ind_array = MINLOC( ABS( dp_level_b - zu ) )
	1724	dp_level_ind_b = ind_array(1) - 1 + nzb
	1725	! MINLOC uses lower array bound 1
	1726	ENDIF
	1727	IF ( dp_smooth ) THEN
[1340]	1728	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
[240]	1729	DO k = dp_level_ind_b+1, nzt
[1340]	1730	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
	1731	( REAL( k - dp_level_ind_b, KIND=wp ) / &
	1732	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
[240]	1733	ENDDO
	1734	ENDIF
	1735	ENDIF
	1736
	1737	!
[978]	1738	!-- Initialize damping zone for the potential temperature in case of
	1739	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
	1740	!-- at the inflow boundary and decreases to zero at pt_damping_width.
[1340]	1741	ptdf_x = 0.0_wp
	1742	ptdf_y = 0.0_wp
[1159]	1743	IF ( bc_lr_dirrad ) THEN
[996]	1744	DO i = nxl, nxr
[978]	1745	IF ( ( i * dx ) < pt_damping_width ) THEN
[1340]	1746	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
	1747	REAL( pt_damping_width - i * dx, KIND=wp ) / ( &
	1748	REAL( pt_damping_width, KIND=wp ) ) ) )**2
[73]	1749	ENDIF
	1750	ENDDO
[1159]	1751	ELSEIF ( bc_lr_raddir ) THEN
[996]	1752	DO i = nxl, nxr
[978]	1753	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
[1322]	1754	ptdf_x(i) = pt_damping_factor * &
[1340]	1755	SIN( pi * 0.5_wp * &
	1756	( ( i - nx ) * dx + pt_damping_width ) / &
	1757	REAL( pt_damping_width, KIND=wp ) )**2
[73]	1758	ENDIF
[978]	1759	ENDDO
[1159]	1760	ELSEIF ( bc_ns_dirrad ) THEN
[996]	1761	DO j = nys, nyn
[978]	1762	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
[1322]	1763	ptdf_y(j) = pt_damping_factor * &
[1340]	1764	SIN( pi * 0.5_wp * &
	1765	( ( j - ny ) * dy + pt_damping_width ) / &
	1766	REAL( pt_damping_width, KIND=wp ) )**2
[1]	1767	ENDIF
[978]	1768	ENDDO
[1159]	1769	ELSEIF ( bc_ns_raddir ) THEN
[996]	1770	DO j = nys, nyn
[978]	1771	IF ( ( j * dy ) < pt_damping_width ) THEN
[1322]	1772	ptdf_y(j) = pt_damping_factor * &
[1340]	1773	SIN( pi * 0.5_wp * &
	1774	( pt_damping_width - j * dy ) / &
	1775	REAL( pt_damping_width, KIND=wp ) )**2
[1]	1776	ENDIF
[73]	1777	ENDDO
[1]	1778	ENDIF
	1779
	1780	!
[709]	1781	!-- Initialize local summation arrays for routine flow_statistics.
	1782	!-- This is necessary because they may not yet have been initialized when they
	1783	!-- are called from flow_statistics (or - depending on the chosen model run -
	1784	!-- are never initialized)
[1340]	1785	sums_divnew_l = 0.0_wp
	1786	sums_divold_l = 0.0_wp
	1787	sums_l_l = 0.0_wp
	1788	sums_up_fraction_l = 0.0_wp
	1789	sums_wsts_bc_l = 0.0_wp
[1]	1790
	1791	!
	1792	!-- Pre-set masks for regional statistics. Default is the total model domain.
[1015]	1793	!-- Ghost points are excluded because counting values at the ghost boundaries
	1794	!-- would bias the statistics
[1340]	1795	rmask = 1.0_wp
	1796	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
	1797	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
[1]	1798
	1799	!
[51]	1800	!-- User-defined initializing actions. Check afterwards, if maximum number
[709]	1801	!-- of allowed timeseries is exceeded
[1]	1802	CALL user_init
	1803
[51]	1804	IF ( dots_num > dots_max ) THEN
[254]	1805	WRITE( message_string, * ) 'number of time series quantities exceeds', &
[274]	1806	' its maximum of dots_max = ', dots_max, &
[254]	1807	' &Please increase dots_max in modules.f90.'
	1808	CALL message( 'init_3d_model', 'PA0194', 1, 2, 0, 6, 0 )
[51]	1809	ENDIF
	1810
[1]	1811	!
	1812	!-- Input binary data file is not needed anymore. This line must be placed
	1813	!-- after call of user_init!
	1814	CALL close_file( 13 )
	1815
	1816	!
	1817	!-- Compute total sum of active mask grid points
	1818	!-- ngp_2dh: number of grid points of a horizontal cross section through the
	1819	!-- total domain
	1820	!-- ngp_3d: number of grid points of the total domain
[132]	1821	ngp_2dh_outer_l = 0
	1822	ngp_2dh_outer = 0
	1823	ngp_2dh_s_inner_l = 0
	1824	ngp_2dh_s_inner = 0
	1825	ngp_2dh_l = 0
	1826	ngp_2dh = 0
[1340]	1827	ngp_3d_inner_l = 0.0_wp
[132]	1828	ngp_3d_inner = 0
	1829	ngp_3d = 0
	1830	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
[1]	1831
	1832	DO sr = 0, statistic_regions
	1833	DO i = nxl, nxr
	1834	DO j = nys, nyn
[1340]	1835	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
[1]	1836	!
	1837	!-- All xy-grid points
	1838	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1839	!
	1840	!-- xy-grid points above topography
	1841	DO k = nzb_s_outer(j,i), nz + 1
	1842	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
	1843	ENDDO
[132]	1844	DO k = nzb_s_inner(j,i), nz + 1
	1845	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + 1
	1846	ENDDO
[1]	1847	!
	1848	!-- All grid points of the total domain above topography
	1849	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
	1850	( nz - nzb_s_inner(j,i) + 2 )
	1851	ENDIF
	1852	ENDDO
	1853	ENDDO
	1854	ENDDO
	1855
	1856	sr = statistic_regions + 1
	1857	#if defined( __parallel )
[622]	1858	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1859	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
[1]	1860	comm2d, ierr )
[622]	1861	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1862	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
[1]	1863	MPI_INTEGER, MPI_SUM, comm2d, ierr )
[622]	1864	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1865	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
[132]	1866	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
[622]	1867	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[485]	1868	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
[1]	1869	MPI_SUM, comm2d, ierr )
[485]	1870	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
[1]	1871	#else
[132]	1872	ngp_2dh = ngp_2dh_l
	1873	ngp_2dh_outer = ngp_2dh_outer_l
	1874	ngp_2dh_s_inner = ngp_2dh_s_inner_l
[485]	1875	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
[1]	1876	#endif
	1877
[560]	1878	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
	1879	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
[1]	1880
	1881	!
	1882	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
	1883	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
	1884	!-- the respective subdomain lie below the surface topography
[667]	1885	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
[631]	1886	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
	1887	ngp_3d_inner(:) )
[667]	1888	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
[1]	1889
[485]	1890	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, ngp_3d_inner_tmp )
[1]	1891
[1402]	1892	CALL location_message( 'leaving init_3d_model', .TRUE. )
[1]	1893
	1894	END SUBROUTINE init_3d_model

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