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init_3d_model.f90 @ 4526

Last change on this file since 4526 was 4514, checked in by suehring, 5 years ago

Bugfix in plant-canopy model for output of averaged transpiration rate after a restart; Revise check for output for plant heating rate and rename error message number; Surface-data output: enable output of mixing ratio and passive scalar concentration at the surface; Surface-data input: Add possibility to prescribe surface sensible and latent heat fluxes via static input file

Property svn:keywords set to Id

Property svn:mergeinfo set to False

/palm/branches/chemistry/SOURCE/init_3d_model.f90	2047-3190,3218-3297
/palm/branches/forwind/SOURCE/init_3d_model.f90	1564-1913
/palm/branches/mosaik_M2/init_3d_model.f90	2360-3471
/palm/branches/palm4u/SOURCE/init_3d_model.f90	2540-2692
/palm/branches/rans/SOURCE/init_3d_model.f90	2078-3128
/palm/branches/resler/SOURCE/init_3d_model.f90	2023-4492
/palm/branches/salsa/SOURCE/init_3d_model.f90	2503-3581

File size: 86.1 KB

Rev	Line
[1682]	1	!> @file init_3d_model.f90
[2000]	2	!------------------------------------------------------------------------------!
[2696]	3	! This file is part of the PALM model system.
[1036]	4	!
[2000]	5	! PALM is free software: you can redistribute it and/or modify it under the
	6	! terms of the GNU General Public License as published by the Free Software
	7	! Foundation, either version 3 of the License, or (at your option) any later
	8	! version.
[1036]	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	!
[4360]	17	! Copyright 1997-2020 Leibniz Universitaet Hannover
[2000]	18	!------------------------------------------------------------------------------!
[1036]	19	!
[254]	20	! Current revisions:
[732]	21	! ------------------
[2233]	22	!
[3589]	23	!
[2233]	24	! Former revisions:
	25	! -----------------
	26	! $Id: init_3d_model.f90 4514 2020-04-30 16:29:59Z oliver.maas $
[4514]	27	! Add possibility to initialize surface sensible and latent heat fluxes via
	28	! a static driver.
	29	!
	30	! 4493 2020-04-10 09:49:43Z pavelkrc
[4365]	31	! Overwrite u_init, v_init, pt_init, q_init and s_init with hom for all
	32	! cyclic_fill-cases, not only for turbulent_inflow = .TRUE.
	33	!
	34	! 4360 2020-01-07 11:25:50Z suehring
[4346]	35	! Introduction of wall_flags_total_0, which currently sets bits based on static
	36	! topography information used in wall_flags_static_0
	37	!
	38	! 4329 2019-12-10 15:46:36Z motisi
[4329]	39	! Renamed wall_flags_0 to wall_flags_static_0
	40	!
	41	! 4286 2019-10-30 16:01:14Z resler
[4227]	42	! implement new palm_date_time_mod
	43	!
	44	! 4223 2019-09-10 09:20:47Z gronemeier
[4187]	45	! Deallocate temporary string array since it may be re-used to read different
	46	! input data in other modules
	47	!
	48	! 4186 2019-08-23 16:06:14Z suehring
[4186]	49	! Design change, use variables defined in netcdf_data_input_mod to read netcd
	50	! variables rather than define local ones.
	51	!
	52	! 4185 2019-08-23 13:49:38Z oliver.maas
[4185]	53	! For initializing_actions = ' cyclic_fill':
	54	! Overwrite u_init, v_init, pt_init, q_init and s_init with the
	55	! (temporally) and horizontally averaged vertical profiles from the end
	56	! of the prerun, because these profiles shall be used as the basic state
	57	! for the rayleigh damping and the pt_damping.
	58	!
	59	! 4182 2019-08-22 15:20:23Z scharf
[4182]	60	! Corrected "Former revisions" section
	61	!
	62	! 4168 2019-08-16 13:50:17Z suehring
[4168]	63	! Replace function get_topography_top_index by topo_top_ind
	64	!
	65	! 4151 2019-08-09 08:24:30Z suehring
[4151]	66	! Add netcdf directive around input calls (fix for last commit)
	67	!
	68	! 4150 2019-08-08 20:00:47Z suehring
[4150]	69	! Input of additional surface variables independent on land- or urban-surface
	70	! model
	71	!
	72	! 4131 2019-08-02 11:06:18Z monakurppa
[4131]	73	! Allocate sums and sums_l to allow profile output for salsa variables.
	74	!
	75	! 4130 2019-08-01 13:04:13Z suehring
[4130]	76	! Effectively reduce 3D initialization to 1D initial profiles. This is because
	77	! 3D initialization produces structures in the w-component that are correlated
	78	! with the processor grid for some unknown reason
	79	!
	80	! 4090 2019-07-11 15:06:47Z Giersch
[4090]	81	! Unused variables removed
	82	!
	83	! 4088 2019-07-11 13:57:56Z Giersch
[4088]	84	! Pressure and density profile calculations revised using basic functions
	85	!
	86	! 4048 2019-06-21 21:00:21Z knoop
[4028]	87	! Further modularization of particle code components
	88	!
	89	! 4017 2019-06-06 12:16:46Z schwenkel
[3987]	90	! Convert most location messages to debug messages to reduce output in
	91	! job logfile to a minimum
	92	!
	93	!
[3939]	94	! unused variable removed
	95	!
	96	! 3937 2019-04-29 15:09:07Z suehring
[3937]	97	! Move initialization of synthetic turbulence generator behind initialization
	98	! of offline nesting. Remove call for stg_adjust, as this is now already done
	99	! in stg_init.
	100	!
	101	! 3900 2019-04-16 15:17:43Z suehring
[3900]	102	! Fix problem with LOD = 2 initialization
	103	!
	104	! 3885 2019-04-11 11:29:34Z kanani
[3885]	105	! Changes related to global restructuring of location messages and introduction
	106	! of additional debug messages
	107	!
	108	! 3849 2019-04-01 16:35:16Z knoop
[3747]	109	! Move initialization of rmask before initializing user_init_arrays
	110	!
	111	! 3711 2019-01-31 13:44:26Z knoop
[3711]	112	! Introduced module_interface_init_checks for post-init checks in modules
	113	!
	114	! 3700 2019-01-26 17:03:42Z knoop
[3685]	115	! Some interface calls moved to module_interface + cleanup
	116	!
	117	! 3648 2019-01-02 16:35:46Z suehring
[3648]	118	! Rename subroutines for surface-data output
[3569]	119	!
[4182]	120	! Revision 1.1 1998/03/09 16:22:22 raasch
	121	! Initial revision
	122	!
	123	!
[1]	124	! Description:
	125	! ------------
[1682]	126	!> Allocation of arrays and initialization of the 3D model via
	127	!> a) pre-run the 1D model
	128	!> or
	129	!> b) pre-set constant linear profiles
	130	!> or
	131	!> c) read values of a previous run
[1]	132	!------------------------------------------------------------------------------!
[1682]	133	SUBROUTINE init_3d_model
[1]	134
[3298]	135
[667]	136	USE advec_ws
[1320]	137
[1]	138	USE arrays_3d
[1849]	139
[3274]	140	USE basic_constants_and_equations_mod, &
[4090]	141	ONLY: c_p, g, l_v, pi, exner_function, exner_function_invers, &
[3274]	142	ideal_gas_law_rho, ideal_gas_law_rho_pt, barometric_formula
	143
	144	USE bulk_cloud_model_mod, &
[3685]	145	ONLY: bulk_cloud_model
[3274]	146
[3298]	147	USE chem_modules, &
[3685]	148	ONLY: max_pr_cs ! ToDo: this dependency needs to be removed cause it is ugly #new_dom
[3298]	149
[1]	150	USE control_parameters
[3298]	151
[1320]	152	USE grid_variables, &
[2037]	153	ONLY: dx, dy, ddx2_mg, ddy2_mg
[2817]	154
[1]	155	USE indices
[3469]	156
[1320]	157	USE kinds
[1496]	158
[2320]	159	USE lsf_nudging_mod, &
[3685]	160	ONLY: ls_forcing_surf
[1849]	161
[2338]	162	USE model_1d_mod, &
[3241]	163	ONLY: init_1d_model, l1d, u1d, v1d
[2338]	164
[3685]	165	USE module_interface, &
[3711]	166	ONLY: module_interface_init_arrays, &
	167	module_interface_init, &
	168	module_interface_init_checks
[3685]	169
[3159]	170	USE multi_agent_system_mod, &
	171	ONLY: agents_active, mas_init
	172
[1783]	173	USE netcdf_interface, &
[3700]	174	ONLY: dots_max
[2696]	175
[2906]	176	USE netcdf_data_input_mod, &
[4150]	177	ONLY: char_fill, &
	178	check_existence, &
	179	close_input_file, &
	180	get_attribute, &
	181	get_variable, &
	182	init_3d, &
	183	input_pids_static, &
	184	inquire_num_variables, &
	185	inquire_variable_names, &
	186	input_file_static, &
	187	netcdf_data_input_init_3d, &
[4186]	188	num_var_pids, &
[4150]	189	open_read_file, &
[4186]	190	pids_id, &
	191	real_2d, &
	192	vars_pids
[4150]	193
[3347]	194	USE nesting_offl_mod, &
	195	ONLY: nesting_offl_init
[3294]	196
[4227]	197	USE palm_date_time_mod, &
	198	ONLY: set_reference_date_time
	199
[1]	200	USE pegrid
[3298]	201
[3524]	202	#if defined( __parallel )
[2934]	203	USE pmc_interface, &
	204	ONLY: nested_run
[3524]	205	#endif
[2934]	206
[1320]	207	USE random_function_mod
[3685]	208
[1400]	209	USE random_generator_parallel, &
[2172]	210	ONLY: init_parallel_random_generator
[3685]	211
[2894]	212	USE read_restart_data_mod, &
[3685]	213	ONLY: rrd_read_parts_of_global, rrd_local
	214
[1320]	215	USE statistics, &
[1738]	216	ONLY: hom, hom_sum, mean_surface_level_height, pr_palm, rmask, &
[1833]	217	statistic_regions, sums, sums_divnew_l, sums_divold_l, sums_l, &
[2277]	218	sums_l_l, sums_wsts_bc_l, ts_value, &
[1833]	219	weight_pres, weight_substep
[2259]	220
	221	USE synthetic_turbulence_generator_mod, &
[3939]	222	ONLY: stg_init, use_syn_turb_gen
[3685]	223
[1691]	224	USE surface_layer_fluxes_mod, &
	225	ONLY: init_surface_layer_fluxes
[2232]	226
	227	USE surface_mod, &
[4150]	228	ONLY : init_single_surface_properties, &
	229	init_surface_arrays, &
	230	init_surfaces, &
	231	surf_def_h, &
	232	surf_def_v, &
	233	surf_lsm_h, &
[4168]	234	surf_usm_h
[3685]	235
[3849]	236	#if defined( _OPENACC )
	237	USE surface_mod, &
	238	ONLY : bc_h
	239	#endif
	240
[3648]	241	USE surface_data_output_mod, &
	242	ONLY: surface_data_output_init
[3685]	243
[2007]	244	USE transpose_indices
[1]	245
	246	IMPLICIT NONE
[4150]	247
	248	INTEGER(iwp) :: i !< grid index in x direction
	249	INTEGER(iwp) :: ind_array(1) !< dummy used to determine start index for external pressure forcing
	250	INTEGER(iwp) :: j !< grid index in y direction
	251	INTEGER(iwp) :: k !< grid index in z direction
	252	INTEGER(iwp) :: k_surf !< surface level index
	253	INTEGER(iwp) :: l !< running index over surface orientation
	254	INTEGER(iwp) :: m !< index of surface element in surface data type
	255	INTEGER(iwp) :: nz_u_shift !< topography-top index on u-grid, used to vertically shift initial profiles
	256	INTEGER(iwp) :: nz_v_shift !< topography-top index on v-grid, used to vertically shift initial profiles
	257	INTEGER(iwp) :: nz_w_shift !< topography-top index on w-grid, used to vertically shift initial profiles
	258	INTEGER(iwp) :: nz_s_shift !< topography-top index on scalar-grid, used to vertically shift initial profiles
	259	INTEGER(iwp) :: nz_u_shift_l !< topography-top index on u-grid, used to vertically shift initial profiles
	260	INTEGER(iwp) :: nz_v_shift_l !< topography-top index on v-grid, used to vertically shift initial profiles
	261	INTEGER(iwp) :: nz_w_shift_l !< topography-top index on w-grid, used to vertically shift initial profiles
	262	INTEGER(iwp) :: nz_s_shift_l !< topography-top index on scalar-grid, used to vertically shift initial profiles
	263	INTEGER(iwp) :: nzt_l !< index of top PE boundary for multigrid level
	264	INTEGER(iwp) :: sr !< index of statistic region
[1]	265
[3547]	266	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !< toal number of horizontal grid points in statistical region on subdomain
[1]	267
[3547]	268	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !< number of horizontal non-wall bounded grid points on subdomain
	269	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !< number of horizontal non-topography grid points on subdomain
[1]	270
[4150]	271
	272
[3182]	273	REAL(wp), DIMENSION(:), ALLOCATABLE :: init_l !< dummy array used for averaging 3D data to obtain inital profiles
[2037]	274	REAL(wp), DIMENSION(:), ALLOCATABLE :: p_hydrostatic !< hydrostatic pressure
	275
	276	REAL(wp) :: dx_l !< grid spacing along x on different multigrid level
	277	REAL(wp) :: dy_l !< grid spacing along y on different multigrid level
	278
[3547]	279	REAL(wp), DIMENSION(1:3) :: volume_flow_area_l !< area of lateral and top model domain surface on local subdomain
	280	REAL(wp), DIMENSION(1:3) :: volume_flow_initial_l !< initial volume flow into model domain
[1]	281
[3547]	282	REAL(wp), DIMENSION(:), ALLOCATABLE :: mean_surface_level_height_l !< mean surface level height on subdomain
	283	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !< total number of non-topography grid points on subdomain
	284	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !< total number of non-topography grid points
[1]	285
[4150]	286	TYPE(real_2d) :: tmp_2d !< temporary variable to input additional surface-data from static file
	287
[3987]	288	CALL location_message( 'model initialization', 'start' )
[4227]	289	!
	290	!-- Set reference date-time
	291	CALL set_reference_date_time( date_time_str=origin_date_time )
[3987]	292
	293	IF ( debug_output ) CALL debug_message( 'allocating arrays', 'start' )
[1]	294	!
	295	!-- Allocate arrays
[1788]	296	ALLOCATE( mean_surface_level_height(0:statistic_regions), &
	297	mean_surface_level_height_l(0:statistic_regions), &
	298	ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
	299	ngp_3d(0:statistic_regions), &
	300	ngp_3d_inner(0:statistic_regions), &
	301	ngp_3d_inner_l(0:statistic_regions), &
	302	ngp_3d_inner_tmp(0:statistic_regions), &
	303	sums_divnew_l(0:statistic_regions), &
[1]	304	sums_divold_l(0:statistic_regions) )
[1195]	305	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
[1788]	306	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
	307	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
	308	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
	309	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
	310	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
[4131]	311	sums(nzb:nzt+1,pr_palm+max_pr_user+max_pr_cs+max_pr_salsa), &
	312	sums_l(nzb:nzt+1,pr_palm+max_pr_user+max_pr_cs+max_pr_salsa,0:threads_per_task-1), &
[1788]	313	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
[3700]	314	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions) )
	315	ALLOCATE( ts_value(dots_max,0:statistic_regions) )
[978]	316	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
[1]	317
[1788]	318	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
	319	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1010]	320	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	321
[2696]	322	ALLOCATE( pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1788]	323	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	324	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	325	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	326	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	327	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	328	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	329	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	330	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	331	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	332	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1788]	333	IF ( .NOT. neutral ) THEN
[1032]	334	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	335	ENDIF
[673]	336	!
[3747]	337	!-- Pre-set masks for regional statistics. Default is the total model domain.
	338	!-- Ghost points are excluded because counting values at the ghost boundaries
	339	!-- would bias the statistics
	340	rmask = 1.0_wp
	341	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
	342	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
	343	!
[707]	344	!-- Following array is required for perturbation pressure within the iterative
	345	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
	346	!-- the weighted average of the substeps and cannot be used in the Poisson
	347	!-- solver.
	348	IF ( psolver == 'sor' ) THEN
	349	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1575]	350	ELSEIF ( psolver(1:9) == 'multigrid' ) THEN
[707]	351	!
	352	!-- For performance reasons, multigrid is using one ghost layer only
	353	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[673]	354	ENDIF
[1]	355
[1111]	356	!
	357	!-- Array for storing constant coeffficients of the tridiagonal solver
	358	IF ( psolver == 'poisfft' ) THEN
[1212]	359	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
[1111]	360	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
	361	ENDIF
	362
[1960]	363	IF ( humidity ) THEN
[1]	364	!
[1960]	365	!-- 3D-humidity
[1788]	366	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	367	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[3011]	368	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	369	vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	370	ENDIF
[1960]	371
	372	IF ( passive_scalar ) THEN
[1]	373
[1960]	374	!
	375	!-- 3D scalar arrays
	376	ALLOCATE( s_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	377	s_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	378	s_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[3636]	379
[1960]	380	ENDIF
	381
[1]	382	!
[3302]	383	!-- Allocate and set 1d-profiles for Stokes drift velocity. It may be set to
	384	!-- non-zero values later in ocean_init
	385	ALLOCATE( u_stokes_zu(nzb:nzt+1), u_stokes_zw(nzb:nzt+1), &
	386	v_stokes_zu(nzb:nzt+1), v_stokes_zw(nzb:nzt+1) )
	387	u_stokes_zu(:) = 0.0_wp
	388	u_stokes_zw(:) = 0.0_wp
	389	v_stokes_zu(:) = 0.0_wp
	390	v_stokes_zw(:) = 0.0_wp
	391
	392	!
[2037]	393	!-- Allocation of anelastic and Boussinesq approximation specific arrays
	394	ALLOCATE( p_hydrostatic(nzb:nzt+1) )
	395	ALLOCATE( rho_air(nzb:nzt+1) )
	396	ALLOCATE( rho_air_zw(nzb:nzt+1) )
	397	ALLOCATE( drho_air(nzb:nzt+1) )
	398	ALLOCATE( drho_air_zw(nzb:nzt+1) )
	399	!
[4088]	400	!-- Density profile calculation for anelastic and Boussinesq approximation
	401	!-- In case of a Boussinesq approximation, a constant density is calculated
	402	!-- mainly for output purposes. This density do not need to be considered
	403	!-- in the model's system of equations.
	404	IF ( TRIM( approximation ) == 'anelastic' ) THEN
[2037]	405	DO k = nzb, nzt+1
[4088]	406	p_hydrostatic(k) = barometric_formula(zu(k), pt_surface * &
	407	exner_function(surface_pressure * 100.0_wp), &
	408	surface_pressure * 100.0_wp)
	409
	410	rho_air(k) = ideal_gas_law_rho_pt(p_hydrostatic(k), pt_init(k))
[2037]	411	ENDDO
[4088]	412
[2037]	413	DO k = nzb, nzt
	414	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
	415	ENDDO
[4088]	416
[2037]	417	rho_air_zw(nzt+1) = rho_air_zw(nzt) &
	418	+ 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
[4088]	419
[2037]	420	ELSE
[2252]	421	DO k = nzb, nzt+1
[4088]	422	p_hydrostatic(k) = barometric_formula(zu(nzb), pt_surface * &
	423	exner_function(surface_pressure * 100.0_wp), &
	424	surface_pressure * 100.0_wp)
	425
	426	rho_air(k) = ideal_gas_law_rho_pt(p_hydrostatic(k), pt_init(nzb))
[2252]	427	ENDDO
[4088]	428
[2252]	429	DO k = nzb, nzt
	430	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
	431	ENDDO
[4088]	432
[2252]	433	rho_air_zw(nzt+1) = rho_air_zw(nzt) &
	434	+ 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
[4088]	435
[2037]	436	ENDIF
[2696]	437	!
[2037]	438	!-- compute the inverse density array in order to avoid expencive divisions
	439	drho_air = 1.0_wp / rho_air
	440	drho_air_zw = 1.0_wp / rho_air_zw
	441
	442	!
	443	!-- Allocation of flux conversion arrays
	444	ALLOCATE( heatflux_input_conversion(nzb:nzt+1) )
	445	ALLOCATE( waterflux_input_conversion(nzb:nzt+1) )
	446	ALLOCATE( momentumflux_input_conversion(nzb:nzt+1) )
	447	ALLOCATE( heatflux_output_conversion(nzb:nzt+1) )
	448	ALLOCATE( waterflux_output_conversion(nzb:nzt+1) )
	449	ALLOCATE( momentumflux_output_conversion(nzb:nzt+1) )
	450
	451	!
	452	!-- calculate flux conversion factors according to approximation and in-/output mode
	453	DO k = nzb, nzt+1
	454
	455	IF ( TRIM( flux_input_mode ) == 'kinematic' ) THEN
	456	heatflux_input_conversion(k) = rho_air_zw(k)
	457	waterflux_input_conversion(k) = rho_air_zw(k)
	458	momentumflux_input_conversion(k) = rho_air_zw(k)
	459	ELSEIF ( TRIM( flux_input_mode ) == 'dynamic' ) THEN
[3274]	460	heatflux_input_conversion(k) = 1.0_wp / c_p
[2037]	461	waterflux_input_conversion(k) = 1.0_wp / l_v
	462	momentumflux_input_conversion(k) = 1.0_wp
	463	ENDIF
	464
	465	IF ( TRIM( flux_output_mode ) == 'kinematic' ) THEN
	466	heatflux_output_conversion(k) = drho_air_zw(k)
	467	waterflux_output_conversion(k) = drho_air_zw(k)
	468	momentumflux_output_conversion(k) = drho_air_zw(k)
	469	ELSEIF ( TRIM( flux_output_mode ) == 'dynamic' ) THEN
[3274]	470	heatflux_output_conversion(k) = c_p
[2037]	471	waterflux_output_conversion(k) = l_v
	472	momentumflux_output_conversion(k) = 1.0_wp
	473	ENDIF
	474
	475	IF ( .NOT. humidity ) THEN
	476	waterflux_input_conversion(k) = 1.0_wp
	477	waterflux_output_conversion(k) = 1.0_wp
	478	ENDIF
	479
	480	ENDDO
	481
	482	!
	483	!-- In case of multigrid method, compute grid lengths and grid factors for the
	484	!-- grid levels with respective density on each grid
	485	IF ( psolver(1:9) == 'multigrid' ) THEN
	486
	487	ALLOCATE( ddx2_mg(maximum_grid_level) )
	488	ALLOCATE( ddy2_mg(maximum_grid_level) )
	489	ALLOCATE( dzu_mg(nzb+1:nzt+1,maximum_grid_level) )
	490	ALLOCATE( dzw_mg(nzb+1:nzt+1,maximum_grid_level) )
	491	ALLOCATE( f1_mg(nzb+1:nzt,maximum_grid_level) )
	492	ALLOCATE( f2_mg(nzb+1:nzt,maximum_grid_level) )
	493	ALLOCATE( f3_mg(nzb+1:nzt,maximum_grid_level) )
	494	ALLOCATE( rho_air_mg(nzb:nzt+1,maximum_grid_level) )
	495	ALLOCATE( rho_air_zw_mg(nzb:nzt+1,maximum_grid_level) )
	496
	497	dzu_mg(:,maximum_grid_level) = dzu
	498	rho_air_mg(:,maximum_grid_level) = rho_air
	499	!
	500	!-- Next line to ensure an equally spaced grid.
	501	dzu_mg(1,maximum_grid_level) = dzu(2)
	502	rho_air_mg(nzb,maximum_grid_level) = rho_air(nzb) + &
	503	(rho_air(nzb) - rho_air(nzb+1))
	504
	505	dzw_mg(:,maximum_grid_level) = dzw
	506	rho_air_zw_mg(:,maximum_grid_level) = rho_air_zw
	507	nzt_l = nzt
	508	DO l = maximum_grid_level-1, 1, -1
	509	dzu_mg(nzb+1,l) = 2.0_wp * dzu_mg(nzb+1,l+1)
	510	dzw_mg(nzb+1,l) = 2.0_wp * dzw_mg(nzb+1,l+1)
	511	rho_air_mg(nzb,l) = rho_air_mg(nzb,l+1) + (rho_air_mg(nzb,l+1) - rho_air_mg(nzb+1,l+1))
	512	rho_air_zw_mg(nzb,l) = rho_air_zw_mg(nzb,l+1) + (rho_air_zw_mg(nzb,l+1) - rho_air_zw_mg(nzb+1,l+1))
	513	rho_air_mg(nzb+1,l) = rho_air_mg(nzb+1,l+1)
	514	rho_air_zw_mg(nzb+1,l) = rho_air_zw_mg(nzb+1,l+1)
	515	nzt_l = nzt_l / 2
	516	DO k = 2, nzt_l+1
	517	dzu_mg(k,l) = dzu_mg(2k-2,l+1) + dzu_mg(2k-1,l+1)
	518	dzw_mg(k,l) = dzw_mg(2k-2,l+1) + dzw_mg(2k-1,l+1)
	519	rho_air_mg(k,l) = rho_air_mg(2*k-1,l+1)
	520	rho_air_zw_mg(k,l) = rho_air_zw_mg(2*k-1,l+1)
	521	ENDDO
	522	ENDDO
	523
	524	nzt_l = nzt
	525	dx_l = dx
	526	dy_l = dy
	527	DO l = maximum_grid_level, 1, -1
	528	ddx2_mg(l) = 1.0_wp / dx_l**2
	529	ddy2_mg(l) = 1.0_wp / dy_l**2
	530	DO k = nzb+1, nzt_l
	531	f2_mg(k,l) = rho_air_zw_mg(k,l) / ( dzu_mg(k+1,l) * dzw_mg(k,l) )
	532	f3_mg(k,l) = rho_air_zw_mg(k-1,l) / ( dzu_mg(k,l) * dzw_mg(k,l) )
	533	f1_mg(k,l) = 2.0_wp * ( ddx2_mg(l) + ddy2_mg(l) ) &
	534	* rho_air_mg(k,l) + f2_mg(k,l) + f3_mg(k,l)
	535	ENDDO
	536	nzt_l = nzt_l / 2
	537	dx_l = dx_l * 2.0_wp
	538	dy_l = dy_l * 2.0_wp
	539	ENDDO
	540
	541	ENDIF
	542
	543	!
[1299]	544	!-- 1D-array for large scale subsidence velocity
[1361]	545	IF ( .NOT. ALLOCATED( w_subs ) ) THEN
	546	ALLOCATE ( w_subs(nzb:nzt+1) )
	547	w_subs = 0.0_wp
	548	ENDIF
[1299]	549
	550	!
[106]	551	!-- Arrays to store velocity data from t-dt and the phase speeds which
	552	!-- are needed for radiation boundary conditions
[3182]	553	IF ( bc_radiation_l ) THEN
[1788]	554	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
	555	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
[667]	556	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
[73]	557	ENDIF
[3182]	558	IF ( bc_radiation_r ) THEN
[1788]	559	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	560	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
[667]	561	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
[73]	562	ENDIF
[3182]	563	IF ( bc_radiation_l .OR. bc_radiation_r ) THEN
[1788]	564	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
[667]	565	c_w(nzb:nzt+1,nysg:nyng) )
[106]	566	ENDIF
[3182]	567	IF ( bc_radiation_s ) THEN
[1788]	568	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
	569	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
[667]	570	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
[73]	571	ENDIF
[3182]	572	IF ( bc_radiation_n ) THEN
[1788]	573	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	574	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
[667]	575	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
[73]	576	ENDIF
[3182]	577	IF ( bc_radiation_s .OR. bc_radiation_n ) THEN
[1788]	578	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
[667]	579	c_w(nzb:nzt+1,nxlg:nxrg) )
[106]	580	ENDIF
[3182]	581	IF ( bc_radiation_l .OR. bc_radiation_r .OR. bc_radiation_s .OR. &
	582	bc_radiation_n ) THEN
[978]	583	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
	584	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
	585	ENDIF
[73]	586
	587	!
[1]	588	!-- Initial assignment of the pointers
[1032]	589	IF ( .NOT. neutral ) THEN
	590	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
	591	ELSE
	592	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
	593	ENDIF
[1001]	594	u => u_1; u_p => u_2; tu_m => u_3
	595	v => v_1; v_p => v_2; tv_m => v_3
	596	w => w_1; w_p => w_2; tw_m => w_3
[1]	597
[1960]	598	IF ( humidity ) THEN
[1001]	599	q => q_1; q_p => q_2; tq_m => q_3
[3274]	600	vpt => vpt_1
[1001]	601	ENDIF
[1960]	602
	603	IF ( passive_scalar ) THEN
	604	s => s_1; s_p => s_2; ts_m => s_3
	605	ENDIF
[1]	606
	607	!
[2696]	608	!-- Initialize surface arrays
[2232]	609	CALL init_surface_arrays
	610	!
[3294]	611	!-- Allocate arrays for other modules
[3685]	612	CALL module_interface_init_arrays
[1551]	613
[1914]	614
[2320]	615	!
[709]	616	!-- Allocate arrays containing the RK coefficient for calculation of
	617	!-- perturbation pressure and turbulent fluxes. At this point values are
	618	!-- set for pressure calculation during initialization (where no timestep
	619	!-- is done). Further below the values needed within the timestep scheme
	620	!-- will be set.
[1788]	621	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
[1878]	622	weight_pres(1:intermediate_timestep_count_max) )
[1340]	623	weight_substep = 1.0_wp
	624	weight_pres = 1.0_wp
[1918]	625	intermediate_timestep_count = 0 ! needed when simulated_time = 0.0
[673]	626
[3987]	627	IF ( debug_output ) CALL debug_message( 'allocating arrays', 'end' )
[1918]	628
[673]	629	!
[3014]	630	!-- Initialize time series
	631	ts_value = 0.0_wp
	632
	633	!
[1918]	634	!-- Initialize local summation arrays for routine flow_statistics.
	635	!-- This is necessary because they may not yet have been initialized when they
	636	!-- are called from flow_statistics (or - depending on the chosen model run -
	637	!-- are never initialized)
	638	sums_divnew_l = 0.0_wp
	639	sums_divold_l = 0.0_wp
	640	sums_l_l = 0.0_wp
	641	sums_wsts_bc_l = 0.0_wp
[3182]	642
[1918]	643	!
[1]	644	!-- Initialize model variables
[1788]	645	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[328]	646	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[1]	647	!
[2696]	648	!-- Initialization with provided input data derived from larger-scale model
	649	IF ( INDEX( initializing_actions, 'inifor' ) /= 0 ) THEN
[3987]	650	IF ( debug_output ) CALL debug_message( 'initializing with INIFOR', 'start' )
[2696]	651	!
[3051]	652	!-- Read initial 1D profiles or 3D data from NetCDF file, depending
	653	!-- on the provided level-of-detail.
[2696]	654	!-- At the moment, only u, v, w, pt and q are provided.
	655	CALL netcdf_data_input_init_3d
	656	!
[3182]	657	!-- Please note, Inifor provides data from nzb+1 to nzt.
	658	!-- Bottom and top boundary conditions for Inifor profiles are already
	659	!-- set (just after reading), so that this is not necessary here.
	660	!-- Depending on the provided level-of-detail, initial Inifor data is
	661	!-- either stored on data type (lod=1), or directly on 3D arrays (lod=2).
	662	!-- In order to obtain also initial profiles in case of lod=2 (which
	663	!-- is required for e.g. damping), average over 3D data.
	664	IF( init_3d%lod_u == 1 ) THEN
	665	u_init = init_3d%u_init
	666	ELSEIF( init_3d%lod_u == 2 ) THEN
	667	ALLOCATE( init_l(nzb:nzt+1) )
	668	DO k = nzb, nzt+1
	669	init_l(k) = SUM( u(k,nys:nyn,nxl:nxr) )
	670	ENDDO
	671	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
[1384]	672
[3182]	673	#if defined( __parallel )
	674	CALL MPI_ALLREDUCE( init_l, u_init, nzt+1-nzb+1, &
	675	MPI_REAL, MPI_SUM, comm2d, ierr )
	676	#else
	677	u_init = init_l
	678	#endif
	679	DEALLOCATE( init_l )
[3051]	680
[2696]	681	ENDIF
[3182]	682
	683	IF( init_3d%lod_v == 1 ) THEN
	684	v_init = init_3d%v_init
	685	ELSEIF( init_3d%lod_v == 2 ) THEN
	686	ALLOCATE( init_l(nzb:nzt+1) )
	687	DO k = nzb, nzt+1
	688	init_l(k) = SUM( v(k,nys:nyn,nxl:nxr) )
	689	ENDDO
	690	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
[2696]	691
[3182]	692	#if defined( __parallel )
	693	CALL MPI_ALLREDUCE( init_l, v_init, nzt+1-nzb+1, &
	694	MPI_REAL, MPI_SUM, comm2d, ierr )
	695	#else
	696	v_init = init_l
	697	#endif
	698	DEALLOCATE( init_l )
	699	ENDIF
	700	IF( .NOT. neutral ) THEN
	701	IF( init_3d%lod_pt == 1 ) THEN
	702	pt_init = init_3d%pt_init
	703	ELSEIF( init_3d%lod_pt == 2 ) THEN
	704	ALLOCATE( init_l(nzb:nzt+1) )
	705	DO k = nzb, nzt+1
	706	init_l(k) = SUM( pt(k,nys:nyn,nxl:nxr) )
	707	ENDDO
	708	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
	709
	710	#if defined( __parallel )
	711	CALL MPI_ALLREDUCE( init_l, pt_init, nzt+1-nzb+1, &
	712	MPI_REAL, MPI_SUM, comm2d, ierr )
	713	#else
	714	pt_init = init_l
	715	#endif
	716	DEALLOCATE( init_l )
	717	ENDIF
	718	ENDIF
	719
	720
	721	IF( humidity ) THEN
	722	IF( init_3d%lod_q == 1 ) THEN
	723	q_init = init_3d%q_init
	724	ELSEIF( init_3d%lod_q == 2 ) THEN
	725	ALLOCATE( init_l(nzb:nzt+1) )
	726	DO k = nzb, nzt+1
	727	init_l(k) = SUM( q(k,nys:nyn,nxl:nxr) )
	728	ENDDO
	729	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
	730
	731	#if defined( __parallel )
	732	CALL MPI_ALLREDUCE( init_l, q_init, nzt+1-nzb+1, &
	733	MPI_REAL, MPI_SUM, comm2d, ierr )
	734	#else
	735	q_init = init_l
	736	#endif
	737	DEALLOCATE( init_l )
	738	ENDIF
	739	ENDIF
	740
[2696]	741	!
[4130]	742	!-- Write initial profiles onto 3D arrays.
	743	!-- Work-around, 3D initialization of u,v,w creates artificial
	744	!-- structures wich correlate with the processor grid. The reason
	745	!-- for this is still unknown. To work-around this, 3D initialization
	746	!-- will be effectively reduce to a 1D initialization where no such
	747	!-- artificial structures appear.
[2696]	748	DO i = nxlg, nxrg
	749	DO j = nysg, nyng
[4130]	750	IF( init_3d%lod_u == 1 .OR. init_3d%lod_u == 2 ) &
	751	u(:,j,i) = u_init(:)
	752	IF( init_3d%lod_v == 1 .OR. init_3d%lod_u == 2 ) &
	753	v(:,j,i) = v_init(:)
	754	IF( .NOT. neutral .AND. &
	755	( init_3d%lod_pt == 1 .OR. init_3d%lod_pt == 2 ) ) &
[3051]	756	pt(:,j,i) = pt_init(:)
[4130]	757	IF( humidity .AND. &
	758	( init_3d%lod_q == 1 .OR. init_3d%lod_q == 2 ) ) &
	759	q(:,j,i) = q_init(:)
[2696]	760	ENDDO
	761	ENDDO
	762	!
[3182]	763	!-- Set geostrophic wind components.
[2938]	764	IF ( init_3d%from_file_ug ) THEN
	765	ug(:) = init_3d%ug_init(:)
	766	ENDIF
	767	IF ( init_3d%from_file_vg ) THEN
	768	vg(:) = init_3d%vg_init(:)
	769	ENDIF
[3404]	770	!
	771	!-- Set bottom and top boundary condition for geostrophic wind
[2938]	772	ug(nzt+1) = ug(nzt)
	773	vg(nzt+1) = vg(nzt)
[3404]	774	ug(nzb) = ug(nzb+1)
	775	vg(nzb) = vg(nzb+1)
[2696]	776	!
	777	!-- Set inital w to 0
	778	w = 0.0_wp
	779
	780	IF ( passive_scalar ) THEN
	781	DO i = nxlg, nxrg
	782	DO j = nysg, nyng
	783	s(:,j,i) = s_init
	784	ENDDO
	785	ENDDO
	786	ENDIF
	787
	788	!
	789	!-- Set velocity components at non-atmospheric / oceanic grid points to
	790	!-- zero.
[4346]	791	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
	792	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
	793	w = MERGE( w, 0.0_wp, BTEST( wall_flags_total_0, 3 ) )
[2700]	794	!
	795	!-- Initialize surface variables, e.g. friction velocity, momentum
	796	!-- fluxes, etc.
	797	CALL init_surfaces
[2696]	798
[3987]	799	IF ( debug_output ) CALL debug_message( 'initializing with INIFOR', 'end' )
[2696]	800	!
	801	!-- Initialization via computed 1D-model profiles
	802	ELSEIF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
	803
[3987]	804	IF ( debug_output ) CALL debug_message( 'initializing with 1D model profiles', 'start' )
[1]	805	!
	806	!-- Use solutions of the 1D model as initial profiles,
	807	!-- start 1D model
	808	CALL init_1d_model
	809	!
	810	!-- Transfer initial profiles to the arrays of the 3D model
[667]	811	DO i = nxlg, nxrg
	812	DO j = nysg, nyng
[1]	813	pt(:,j,i) = pt_init
	814	u(:,j,i) = u1d
	815	v(:,j,i) = v1d
	816	ENDDO
	817	ENDDO
	818
[1960]	819	IF ( humidity ) THEN
[667]	820	DO i = nxlg, nxrg
	821	DO j = nysg, nyng
[1]	822	q(:,j,i) = q_init
	823	ENDDO
	824	ENDDO
	825	ENDIF
[2292]	826
[1960]	827	IF ( passive_scalar ) THEN
	828	DO i = nxlg, nxrg
	829	DO j = nysg, nyng
	830	s(:,j,i) = s_init
	831	ENDDO
	832	ENDDO
	833	ENDIF
[1]	834	!
	835	!-- Store initial profiles for output purposes etc.
[2696]	836	IF ( .NOT. constant_diffusion ) THEN
[1]	837	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	838	ENDIF
	839	!
[2696]	840	!-- Set velocities back to zero
[4346]	841	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
	842	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
[1]	843	!
[2696]	844	!-- WARNING: The extra boundary conditions set after running the
	845	!-- ------- 1D model impose an error on the divergence one layer
	846	!-- below the topography; need to correct later
	847	!-- ATTENTION: Provisional correction for Piacsek & Williams
	848	!-- --------- advection scheme: keep u and v zero one layer below
	849	!-- the topography.
	850	IF ( ibc_uv_b == 1 ) THEN
[667]	851	!
[2696]	852	!-- Neumann condition
	853	DO i = nxl-1, nxr+1
	854	DO j = nys-1, nyn+1
	855	u(nzb,j,i) = u(nzb+1,j,i)
	856	v(nzb,j,i) = v(nzb+1,j,i)
[1]	857	ENDDO
[2696]	858	ENDDO
[1]	859
	860	ENDIF
[2618]	861	!
	862	!-- Initialize surface variables, e.g. friction velocity, momentum
	863	!-- fluxes, etc.
	864	CALL init_surfaces
[1]	865
[3987]	866	IF ( debug_output ) CALL debug_message( 'initializing with 1D model profiles', 'end' )
[1384]	867
[1788]	868	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
[1]	869	THEN
[1241]	870
[3987]	871	IF ( debug_output ) CALL debug_message( 'initializing with constant profiles', 'start' )
[2259]	872
	873	!
[1]	874	!-- Use constructed initial profiles (velocity constant with height,
	875	!-- temperature profile with constant gradient)
[667]	876	DO i = nxlg, nxrg
	877	DO j = nysg, nyng
[1]	878	pt(:,j,i) = pt_init
	879	u(:,j,i) = u_init
	880	v(:,j,i) = v_init
	881	ENDDO
	882	ENDDO
	883	!
[2758]	884	!-- Mask topography
[4346]	885	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
	886	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
[2758]	887	!
[292]	888	!-- Set initial horizontal velocities at the lowest computational grid
	889	!-- levels to zero in order to avoid too small time steps caused by the
	890	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
[2758]	891	!-- in the limiting formula!).
	892	!-- Please note, in case land- or urban-surface model is used and a
	893	!-- spinup is applied, masking the lowest computational level is not
	894	!-- possible as MOST as well as energy-balance parametrizations will not
	895	!-- work with zero wind velocity.
	896	IF ( ibc_uv_b /= 1 .AND. .NOT. spinup ) THEN
[1815]	897	DO i = nxlg, nxrg
	898	DO j = nysg, nyng
[2232]	899	DO k = nzb, nzt
	900	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, &
[4346]	901	BTEST( wall_flags_total_0(k,j,i), 20 ) )
[2232]	902	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, &
[4346]	903	BTEST( wall_flags_total_0(k,j,i), 21 ) )
[2232]	904	ENDDO
[1815]	905	ENDDO
	906	ENDDO
	907	ENDIF
[1]	908
[1960]	909	IF ( humidity ) THEN
[667]	910	DO i = nxlg, nxrg
	911	DO j = nysg, nyng
[1]	912	q(:,j,i) = q_init
	913	ENDDO
	914	ENDDO
	915	ENDIF
[1960]	916
	917	IF ( passive_scalar ) THEN
	918	DO i = nxlg, nxrg
	919	DO j = nysg, nyng
	920	s(:,j,i) = s_init
	921	ENDDO
	922	ENDDO
	923	ENDIF
[1]	924
[1920]	925	!
[1]	926	!-- Compute initial temperature field and other constants used in case
	927	!-- of a sloping surface
	928	IF ( sloping_surface ) CALL init_slope
[2618]	929	!
	930	!-- Initialize surface variables, e.g. friction velocity, momentum
	931	!-- fluxes, etc.
	932	CALL init_surfaces
[3579]	933
[3987]	934	IF ( debug_output ) CALL debug_message( 'initializing with constant profiles', 'end' )
[1384]	935
[1788]	936	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
[46]	937	THEN
[1384]	938
[3987]	939	IF ( debug_output ) CALL debug_message( 'initializing by user', 'start' )
[46]	940	!
[2618]	941	!-- Pre-initialize surface variables, i.e. setting start- and end-indices
	942	!-- at each (j,i)-location. Please note, this does not supersede
	943	!-- user-defined initialization of surface quantities.
	944	CALL init_surfaces
	945	!
[46]	946	!-- Initialization will completely be done by the user
	947	CALL user_init_3d_model
	948
[3987]	949	IF ( debug_output ) CALL debug_message( 'initializing by user', 'end' )
[1384]	950
[1]	951	ENDIF
[1384]	952
[3987]	953	IF ( debug_output ) CALL debug_message( 'initializing statistics, boundary conditions, etc.', 'start' )
[1384]	954
[667]	955	!
	956	!-- Bottom boundary
	957	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
[1340]	958	u(nzb,:,:) = 0.0_wp
	959	v(nzb,:,:) = 0.0_wp
[667]	960	ENDIF
[1]	961
	962	!
[151]	963	!-- Apply channel flow boundary condition
[132]	964	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
[1340]	965	u(nzt+1,:,:) = 0.0_wp
	966	v(nzt+1,:,:) = 0.0_wp
[132]	967	ENDIF
	968
	969	!
[1]	970	!-- Calculate virtual potential temperature
[1960]	971	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
[1]	972
	973	!
[2696]	974	!-- Store initial profiles for output purposes etc.. Please note, in case of
	975	!-- initialization of u, v, w, pt, and q via output data derived from larger
	976	!-- scale models, data will not be horizontally homogeneous. Actually, a mean
	977	!-- profile should be calculated before.
[1]	978	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	979	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
[667]	980	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
[1340]	981	hom(nzb,1,5,:) = 0.0_wp
	982	hom(nzb,1,6,:) = 0.0_wp
[1]	983	ENDIF
	984	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	985
[75]	986	IF ( humidity ) THEN
[1]	987	!
	988	!-- Store initial profile of total water content, virtual potential
	989	!-- temperature
	990	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	991	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
[2696]	992	!
[3040]	993	!-- Store initial profile of mixing ratio and potential
[2696]	994	!-- temperature
[3274]	995	IF ( bulk_cloud_model .OR. cloud_droplets ) THEN
[1]	996	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	997	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	998	ENDIF
	999	ENDIF
	1000
[2696]	1001	!
	1002	!-- Store initial scalar profile
[1]	1003	IF ( passive_scalar ) THEN
[2513]	1004	hom(:,1,121,:) = SPREAD( s(:,nys,nxl), 2, statistic_regions+1 )
[1]	1005	ENDIF
	1006
	1007	!
[1400]	1008	!-- Initialize the random number generators (from numerical recipes)
	1009	CALL random_function_ini
[1429]	1010
[1400]	1011	IF ( random_generator == 'random-parallel' ) THEN
[3241]	1012	CALL init_parallel_random_generator( nx, nys, nyn, nxl, nxr )
[1400]	1013	ENDIF
	1014	!
[1179]	1015	!-- Set the reference state to be used in the buoyancy terms (for ocean runs
	1016	!-- the reference state will be set (overwritten) in init_ocean)
	1017	IF ( use_single_reference_value ) THEN
[1788]	1018	IF ( .NOT. humidity ) THEN
[1179]	1019	ref_state(:) = pt_reference
	1020	ELSE
	1021	ref_state(:) = vpt_reference
	1022	ENDIF
	1023	ELSE
[1788]	1024	IF ( .NOT. humidity ) THEN
[1179]	1025	ref_state(:) = pt_init(:)
	1026	ELSE
	1027	ref_state(:) = vpt(:,nys,nxl)
	1028	ENDIF
	1029	ENDIF
[152]	1030
	1031	!
[707]	1032	!-- For the moment, vertical velocity is zero
[1340]	1033	w = 0.0_wp
[1]	1034
	1035	!
	1036	!-- Initialize array sums (must be defined in first call of pres)
[1340]	1037	sums = 0.0_wp
[1]	1038
	1039	!
[707]	1040	!-- In case of iterative solvers, p must get an initial value
[1575]	1041	IF ( psolver(1:9) == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
[707]	1042	!
[1]	1043	!-- Impose vortex with vertical axis on the initial velocity profile
	1044	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	1045	CALL init_rankine
	1046	ENDIF
	1047
	1048	!
[3035]	1049	!-- Impose temperature anomaly (advection test only) or warm air bubble
	1050	!-- close to surface
	1051	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 .OR. &
	1052	INDEX( initializing_actions, 'initialize_bubble' ) /= 0 ) THEN
[1]	1053	CALL init_pt_anomaly
	1054	ENDIF
[3035]	1055
[1]	1056	!
	1057	!-- If required, change the surface temperature at the start of the 3D run
[1340]	1058	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
[1]	1059	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	1060	ENDIF
	1061
	1062	!
	1063	!-- If required, change the surface humidity/scalar at the start of the 3D
	1064	!-- run
[1960]	1065	IF ( humidity .AND. q_surface_initial_change /= 0.0_wp ) &
[1]	1066	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
[1960]	1067
	1068	IF ( passive_scalar .AND. s_surface_initial_change /= 0.0_wp ) &
	1069	s(nzb,:,:) = s(nzb,:,:) + s_surface_initial_change
	1070
[1]	1071
	1072	!
	1073	!-- Initialize old and new time levels.
[2696]	1074	tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
	1075	pt_p = pt; u_p = u; v_p = v; w_p = w
[1]	1076
[1960]	1077	IF ( humidity ) THEN
[1340]	1078	tq_m = 0.0_wp
[1]	1079	q_p = q
	1080	ENDIF
[1960]	1081
	1082	IF ( passive_scalar ) THEN
	1083	ts_m = 0.0_wp
	1084	s_p = s
	1085	ENDIF
[1]	1086
[3987]	1087	IF ( debug_output ) CALL debug_message( 'initializing statistics, boundary conditions, etc.', 'end' )
[94]	1088
[1788]	1089	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
[2232]	1090	TRIM( initializing_actions ) == 'cyclic_fill' ) &
[1]	1091	THEN
[1384]	1092
[3987]	1093	IF ( debug_output ) CALL debug_message( 'initializing in case of restart / cyclic_fill', 'start' )
[1]	1094	!
[3609]	1095	!-- Initialize surface elements and its attributes, e.g. heat- and
	1096	!-- momentumfluxes, roughness, scaling parameters. As number of surface
	1097	!-- elements might be different between runs, e.g. in case of cyclic fill,
	1098	!-- and not all surface elements are read, surface elements need to be
	1099	!-- initialized before.
	1100	!-- Please note, in case of cyclic fill, surfaces should be initialized
	1101	!-- after restart data is read, else, individual settings of surface
	1102	!-- parameters will be overwritten from data of precursor run, hence,
	1103	!-- init_surfaces is called a second time after reading the restart data.
	1104	CALL init_surfaces
	1105	!
[767]	1106	!-- When reading data for cyclic fill of 3D prerun data files, read
	1107	!-- some of the global variables from the restart file which are required
	1108	!-- for initializing the inflow
[328]	1109	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[559]	1110
[759]	1111	DO i = 0, io_blocks-1
	1112	IF ( i == io_group ) THEN
[2894]	1113	CALL rrd_read_parts_of_global
[759]	1114	ENDIF
	1115	#if defined( __parallel )
	1116	CALL MPI_BARRIER( comm2d, ierr )
	1117	#endif
	1118	ENDDO
[328]	1119
[767]	1120	ENDIF
	1121
[151]	1122	!
[2894]	1123	!-- Read processor specific binary data from restart file
[767]	1124	DO i = 0, io_blocks-1
	1125	IF ( i == io_group ) THEN
[2894]	1126	CALL rrd_local
[767]	1127	ENDIF
	1128	#if defined( __parallel )
	1129	CALL MPI_BARRIER( comm2d, ierr )
	1130	#endif
	1131	ENDDO
[4365]	1132
	1133
	1134	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1135
[3608]	1136	!
[4365]	1137	!-- In case of cyclic fill, call init_surfaces a second time, so that
	1138	!-- surface properties such as heat fluxes are initialized as prescribed.
[3609]	1139	CALL init_surfaces
[767]	1140
[328]	1141	!
[4365]	1142	!-- Overwrite u_init, v_init, pt_init, q_init and s_init with the
	1143	!-- horizontally mean (hom) vertical profiles from the end
	1144	!-- of the prerun, because these profiles shall be used as the reference
	1145	!-- state for the rayleigh damping and the pt_damping. This is especially
	1146	!-- important for the use of large_scale_subsidence, because the
	1147	!-- reference temperature in the free atmosphere changes in time.
	1148	u_init(:) = hom_sum(:,1,0)
	1149	v_init(:) = hom_sum(:,2,0)
	1150	pt_init(:) = hom_sum(:,4,0)
	1151	IF ( humidity ) &
	1152	q_init(:) = hom_sum(:,41,0)
	1153	IF ( passive_scalar ) &
	1154	s_init(:) = hom_sum(:,115,0)
	1155	ENDIF
	1156	!
[2550]	1157	!-- In case of complex terrain and cyclic fill method as initialization,
	1158	!-- shift initial data in the vertical direction for each point in the
	1159	!-- x-y-plane depending on local surface height
	1160	IF ( complex_terrain .AND. &
	1161	TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1162	DO i = nxlg, nxrg
	1163	DO j = nysg, nyng
[4168]	1164	nz_u_shift = topo_top_ind(j,i,1)
	1165	nz_v_shift = topo_top_ind(j,i,2)
	1166	nz_w_shift = topo_top_ind(j,i,3)
	1167	nz_s_shift = topo_top_ind(j,i,0)
[2550]	1168
	1169	u(nz_u_shift:nzt+1,j,i) = u(0:nzt+1-nz_u_shift,j,i)
	1170
	1171	v(nz_v_shift:nzt+1,j,i) = v(0:nzt+1-nz_v_shift,j,i)
	1172
	1173	w(nz_w_shift:nzt+1,j,i) = w(0:nzt+1-nz_w_shift,j,i)
	1174
	1175	p(nz_s_shift:nzt+1,j,i) = p(0:nzt+1-nz_s_shift,j,i)
	1176	pt(nz_s_shift:nzt+1,j,i) = pt(0:nzt+1-nz_s_shift,j,i)
	1177	ENDDO
	1178	ENDDO
	1179	ENDIF
	1180	!
[767]	1181	!-- Initialization of the turbulence recycling method
[1788]	1182	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
[767]	1183	turbulent_inflow ) THEN
	1184	!
	1185	!-- First store the profiles to be used at the inflow.
	1186	!-- These profiles are the (temporally) and horizontally averaged vertical
	1187	!-- profiles from the prerun. Alternatively, prescribed profiles
[4185]	1188	!-- for u,v-components can be used.
[3288]	1189	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,1:num_mean_inflow_profiles) )
[151]	1190
[767]	1191	IF ( use_prescribed_profile_data ) THEN
	1192	mean_inflow_profiles(:,1) = u_init ! u
	1193	mean_inflow_profiles(:,2) = v_init ! v
	1194	ELSE
[328]	1195	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
	1196	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
[767]	1197	ENDIF
	1198	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
[1960]	1199	IF ( humidity ) &
	1200	mean_inflow_profiles(:,6) = hom_sum(:,41,0) ! q
	1201	IF ( passive_scalar ) &
	1202	mean_inflow_profiles(:,7) = hom_sum(:,115,0) ! s
[4365]	1203
[2550]	1204	!
	1205	!-- In case of complex terrain, determine vertical displacement at inflow
	1206	!-- boundary and adjust mean inflow profiles
	1207	IF ( complex_terrain ) THEN
	1208	IF ( nxlg <= 0 .AND. nxrg >= 0 .AND. nysg <= 0 .AND. nyng >= 0 ) THEN
[4168]	1209	nz_u_shift_l = topo_top_ind(j,i,1)
	1210	nz_v_shift_l = topo_top_ind(j,i,2)
	1211	nz_w_shift_l = topo_top_ind(j,i,3)
	1212	nz_s_shift_l = topo_top_ind(j,i,0)
[2550]	1213	ELSE
	1214	nz_u_shift_l = 0
	1215	nz_v_shift_l = 0
	1216	nz_w_shift_l = 0
	1217	nz_s_shift_l = 0
	1218	ENDIF
[151]	1219
[2550]	1220	#if defined( __parallel )
	1221	CALL MPI_ALLREDUCE(nz_u_shift_l, nz_u_shift, 1, MPI_INTEGER, &
	1222	MPI_MAX, comm2d, ierr)
	1223	CALL MPI_ALLREDUCE(nz_v_shift_l, nz_v_shift, 1, MPI_INTEGER, &
	1224	MPI_MAX, comm2d, ierr)
	1225	CALL MPI_ALLREDUCE(nz_w_shift_l, nz_w_shift, 1, MPI_INTEGER, &
	1226	MPI_MAX, comm2d, ierr)
	1227	CALL MPI_ALLREDUCE(nz_s_shift_l, nz_s_shift, 1, MPI_INTEGER, &
	1228	MPI_MAX, comm2d, ierr)
	1229	#else
	1230	nz_u_shift = nz_u_shift_l
	1231	nz_v_shift = nz_v_shift_l
	1232	nz_w_shift = nz_w_shift_l
	1233	nz_s_shift = nz_s_shift_l
	1234	#endif
	1235
	1236	mean_inflow_profiles(:,1) = 0.0_wp
	1237	mean_inflow_profiles(nz_u_shift:nzt+1,1) = hom_sum(0:nzt+1-nz_u_shift,1,0) ! u
	1238
	1239	mean_inflow_profiles(:,2) = 0.0_wp
	1240	mean_inflow_profiles(nz_v_shift:nzt+1,2) = hom_sum(0:nzt+1-nz_v_shift,2,0) ! v
	1241
	1242	mean_inflow_profiles(nz_s_shift:nzt+1,4) = hom_sum(0:nzt+1-nz_s_shift,4,0) ! pt
	1243
	1244	ENDIF
	1245
[151]	1246	!
[767]	1247	!-- If necessary, adjust the horizontal flow field to the prescribed
	1248	!-- profiles
	1249	IF ( use_prescribed_profile_data ) THEN
	1250	DO i = nxlg, nxrg
[667]	1251	DO j = nysg, nyng
[328]	1252	DO k = nzb, nzt+1
[767]	1253	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
	1254	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
[328]	1255	ENDDO
[151]	1256	ENDDO
[767]	1257	ENDDO
	1258	ENDIF
[151]	1259
	1260	!
[767]	1261	!-- Use these mean profiles at the inflow (provided that Dirichlet
	1262	!-- conditions are used)
[3182]	1263	IF ( bc_dirichlet_l ) THEN
[767]	1264	DO j = nysg, nyng
	1265	DO k = nzb, nzt+1
	1266	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
	1267	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
[1340]	1268	w(k,j,nxlg:-1) = 0.0_wp
[767]	1269	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
[1960]	1270	IF ( humidity ) &
[1615]	1271	q(k,j,nxlg:-1) = mean_inflow_profiles(k,6)
[1960]	1272	IF ( passive_scalar ) &
	1273	s(k,j,nxlg:-1) = mean_inflow_profiles(k,7)
[767]	1274	ENDDO
	1275	ENDDO
	1276	ENDIF
	1277
[151]	1278	!
[767]	1279	!-- Calculate the damping factors to be used at the inflow. For a
	1280	!-- turbulent inflow the turbulent fluctuations have to be limited
	1281	!-- vertically because otherwise the turbulent inflow layer will grow
	1282	!-- in time.
[1340]	1283	IF ( inflow_damping_height == 9999999.9_wp ) THEN
[767]	1284	!
	1285	!-- Default: use the inversion height calculated by the prerun; if
	1286	!-- this is zero, inflow_damping_height must be explicitly
	1287	!-- specified.
[1340]	1288	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
[767]	1289	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
	1290	ELSE
[1788]	1291	WRITE( message_string, * ) 'inflow_damping_height must be ', &
	1292	'explicitly specified because&the inversion height ', &
[767]	1293	'calculated by the prerun is zero.'
	1294	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
[292]	1295	ENDIF
[151]	1296
[767]	1297	ENDIF
	1298
[1340]	1299	IF ( inflow_damping_width == 9999999.9_wp ) THEN
[151]	1300	!
[767]	1301	!-- Default for the transition range: one tenth of the undamped
	1302	!-- layer
[1340]	1303	inflow_damping_width = 0.1_wp * inflow_damping_height
[151]	1304
[767]	1305	ENDIF
[151]	1306
[767]	1307	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
[151]	1308
[767]	1309	DO k = nzb, nzt+1
[151]	1310
[767]	1311	IF ( zu(k) <= inflow_damping_height ) THEN
[1340]	1312	inflow_damping_factor(k) = 1.0_wp
[996]	1313	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
[1340]	1314	inflow_damping_factor(k) = 1.0_wp - &
[996]	1315	( zu(k) - inflow_damping_height ) / &
	1316	inflow_damping_width
[767]	1317	ELSE
[1340]	1318	inflow_damping_factor(k) = 0.0_wp
[767]	1319	ENDIF
[151]	1320
[767]	1321	ENDDO
[151]	1322
[147]	1323	ENDIF
	1324
[152]	1325	!
[2696]	1326	!-- Inside buildings set velocities back to zero
[1788]	1327	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
[359]	1328	topography /= 'flat' ) THEN
	1329	!
[2696]	1330	!-- Inside buildings set velocities back to zero.
	1331	!-- Other scalars (pt, q, s, p, sa, ...) are ignored at present,
[359]	1332	!-- maybe revise later.
[1001]	1333	DO i = nxlg, nxrg
	1334	DO j = nysg, nyng
[2232]	1335	DO k = nzb, nzt
	1336	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, &
[4346]	1337	BTEST( wall_flags_total_0(k,j,i), 1 ) )
[2232]	1338	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, &
[4346]	1339	BTEST( wall_flags_total_0(k,j,i), 2 ) )
[2232]	1340	w(k,j,i) = MERGE( w(k,j,i), 0.0_wp, &
[4346]	1341	BTEST( wall_flags_total_0(k,j,i), 3 ) )
[2232]	1342	ENDDO
[359]	1343	ENDDO
[1001]	1344	ENDDO
[359]	1345
	1346	ENDIF
	1347
	1348	!
[1]	1349	!-- Calculate initial temperature field and other constants used in case
	1350	!-- of a sloping surface
	1351	IF ( sloping_surface ) CALL init_slope
	1352
	1353	!
	1354	!-- Initialize new time levels (only done in order to set boundary values
	1355	!-- including ghost points)
[2696]	1356	pt_p = pt; u_p = u; v_p = v; w_p = w
[1960]	1357	IF ( humidity ) THEN
[1053]	1358	q_p = q
	1359	ENDIF
[1960]	1360	IF ( passive_scalar ) s_p = s
[181]	1361	!
	1362	!-- Allthough tendency arrays are set in prognostic_equations, they have
	1363	!-- have to be predefined here because they are used (but multiplied with 0)
	1364	!-- there before they are set.
[2696]	1365	tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
[1960]	1366	IF ( humidity ) THEN
[1340]	1367	tq_m = 0.0_wp
[1053]	1368	ENDIF
[1960]	1369	IF ( passive_scalar ) ts_m = 0.0_wp
[181]	1370
[3987]	1371	IF ( debug_output ) CALL debug_message( 'initializing in case of restart / cyclic_fill', 'end' )
[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
[3182]	1384	IF ( bc_radiation_l ) THEN
[151]	1385	u_m_l(:,:,:) = u(:,:,1:2)
	1386	v_m_l(:,:,:) = v(:,:,0:1)
	1387	w_m_l(:,:,:) = w(:,:,0:1)
	1388	ENDIF
[3182]	1389	IF ( bc_radiation_r ) THEN
[151]	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
[3182]	1394	IF ( bc_radiation_s ) THEN
[151]	1395	u_m_s(:,:,:) = u(:,0:1,:)
	1396	v_m_s(:,:,:) = v(:,1:2,:)
	1397	w_m_s(:,:,:) = w(:,0:1,:)
	1398	ENDIF
[3182]	1399	IF ( bc_radiation_n ) THEN
[151]	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
[2232]	1418	DO k = nzb+1, nzt
[4346]	1419	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1420	u_init(k) * dzw(k) &
	1421	* MERGE( 1.0_wp, 0.0_wp, &
	1422	BTEST( wall_flags_total_0(k,j,nxr), 1 )&
[2232]	1423	)
	1424
[4346]	1425	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1426	* MERGE( 1.0_wp, 0.0_wp, &
	1427	BTEST( wall_flags_total_0(k,j,nxr), 1 )&
[2232]	1428	)
[767]	1429	ENDDO
	1430	ENDDO
	1431	ENDIF
	1432
	1433	IF ( nyn == ny ) THEN
	1434	DO i = nxl, nxr
[2232]	1435	DO k = nzb+1, nzt
[4346]	1436	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1437	v_init(k) * dzw(k) &
	1438	* MERGE( 1.0_wp, 0.0_wp, &
	1439	BTEST( wall_flags_total_0(k,nyn,i), 2 )&
[2232]	1440	)
[4346]	1441	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1442	* MERGE( 1.0_wp, 0.0_wp, &
	1443	BTEST( wall_flags_total_0(k,nyn,i), 2 )&
[2232]	1444	)
[767]	1445	ENDDO
	1446	ENDDO
	1447	ENDIF
	1448
	1449	#if defined( __parallel )
	1450	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1451	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1452	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1453	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1454
	1455	#else
	1456	volume_flow_initial = volume_flow_initial_l
	1457	volume_flow_area = volume_flow_area_l
	1458	#endif
	1459
	1460	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1461
[1340]	1462	volume_flow_initial_l = 0.0_wp
	1463	volume_flow_area_l = 0.0_wp
[767]	1464
	1465	IF ( nxr == nx ) THEN
	1466	DO j = nys, nyn
[2232]	1467	DO k = nzb+1, nzt
[4346]	1468	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1469	hom_sum(k,1,0) * dzw(k) &
	1470	* MERGE( 1.0_wp, 0.0_wp, &
	1471	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
[2232]	1472	)
[4346]	1473	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1474	* MERGE( 1.0_wp, 0.0_wp, &
	1475	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
[2232]	1476	)
[667]	1477	ENDDO
	1478	ENDDO
	1479	ENDIF
	1480
	1481	IF ( nyn == ny ) THEN
	1482	DO i = nxl, nxr
[2232]	1483	DO k = nzb+1, nzt
[4346]	1484	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1485	hom_sum(k,2,0) * dzw(k) &
	1486	* MERGE( 1.0_wp, 0.0_wp, &
	1487	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
[2232]	1488	)
[4346]	1489	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1490	* MERGE( 1.0_wp, 0.0_wp, &
	1491	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
[2232]	1492	)
[667]	1493	ENDDO
	1494	ENDDO
	1495	ENDIF
	1496
[732]	1497	#if defined( __parallel )
	1498	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1499	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1500	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1501	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1502
	1503	#else
	1504	volume_flow_initial = volume_flow_initial_l
	1505	volume_flow_area = volume_flow_area_l
	1506	#endif
	1507
[667]	1508	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	1509
[1340]	1510	volume_flow_initial_l = 0.0_wp
	1511	volume_flow_area_l = 0.0_wp
[732]	1512
[667]	1513	IF ( nxr == nx ) THEN
	1514	DO j = nys, nyn
[2232]	1515	DO k = nzb+1, nzt
[4346]	1516	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1517	u(k,j,nx) * dzw(k) &
	1518	* MERGE( 1.0_wp, 0.0_wp, &
	1519	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
[2232]	1520	)
[4346]	1521	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1522	* MERGE( 1.0_wp, 0.0_wp, &
	1523	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
[2232]	1524	)
[667]	1525	ENDDO
	1526	ENDDO
	1527	ENDIF
	1528
	1529	IF ( nyn == ny ) THEN
	1530	DO i = nxl, nxr
[2232]	1531	DO k = nzb+1, nzt
[4346]	1532	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1533	v(k,ny,i) * dzw(k) &
	1534	* MERGE( 1.0_wp, 0.0_wp, &
	1535	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
[2232]	1536	)
[4346]	1537	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1538	* MERGE( 1.0_wp, 0.0_wp, &
	1539	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
[2232]	1540	)
[667]	1541	ENDDO
	1542	ENDDO
	1543	ENDIF
	1544
	1545	#if defined( __parallel )
[732]	1546	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1547	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1548	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1549	2, MPI_REAL, MPI_SUM, comm2d, ierr )
[667]	1550
	1551	#else
[732]	1552	volume_flow_initial = volume_flow_initial_l
	1553	volume_flow_area = volume_flow_area_l
[667]	1554	#endif
	1555
[732]	1556	ENDIF
	1557
[151]	1558	!
[709]	1559	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
	1560	!-- from u\|v_bulk instead
[680]	1561	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
	1562	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
	1563	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
	1564	ENDIF
[667]	1565
[680]	1566	ENDIF
[2232]	1567	!
[4150]	1568	!-- In the following, surface properties can be further initialized with
	1569	!-- input from static driver file.
	1570	!-- At the moment this affects only default surfaces. For example,
	1571	!-- roughness length or sensible / latent heat fluxes can be initialized
	1572	!-- heterogeneously for default surfaces. Therefore, a generic routine
	1573	!-- from netcdf_data_input_mod is called to read a 2D array.
	1574	IF ( input_pids_static ) THEN
	1575	!
[4151]	1576	!-- Allocate memory for possible static input
	1577	ALLOCATE( tmp_2d%var(nys:nyn,nxl:nxr) )
	1578	tmp_2d%var = 0.0_wp
	1579	!
[4150]	1580	!-- Open the static input file
[4151]	1581	#if defined( __netcdf )
[4150]	1582	CALL open_read_file( TRIM( input_file_static ) // &
	1583	TRIM( coupling_char ), &
[4186]	1584	pids_id )
[4150]	1585
[4186]	1586	CALL inquire_num_variables( pids_id, num_var_pids )
[4150]	1587	!
	1588	!-- Allocate memory to store variable names and read them
[4186]	1589	ALLOCATE( vars_pids(1:num_var_pids) )
	1590	CALL inquire_variable_names( pids_id, vars_pids )
[4150]	1591	!
	1592	!-- Input roughness length.
[4186]	1593	IF ( check_existence( vars_pids, 'z0' ) ) THEN
[4150]	1594	!
	1595	!-- Read _FillValue attribute
[4186]	1596	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, &
[4150]	1597	.FALSE., 'z0' )
	1598	!
	1599	!-- Read variable
[4186]	1600	CALL get_variable( pids_id, 'z0', tmp_2d%var, &
[4150]	1601	nxl, nxr, nys, nyn )
	1602	!
	1603	!-- Initialize roughness length. Note, z0 will be only initialized at
	1604	!-- default-type surfaces. At natural or urban z0 is implicitly
[4514]	1605	!-- initialized by the respective parameter lists.
[4150]	1606	!-- Initialize horizontal surface elements.
	1607	CALL init_single_surface_properties( surf_def_h(0)%z0, &
	1608	tmp_2d%var, &
	1609	surf_def_h(0)%ns, &
	1610	tmp_2d%fill, &
	1611	surf_def_h(0)%i, &
	1612	surf_def_h(0)%j )
	1613	!
	1614	!-- Initialize roughness also at vertical surface elements.
	1615	!-- Note, the actual 2D input arrays are only defined on the
	1616	!-- subdomain. Therefore, pass the index arrays with their respective
	1617	!-- offset values.
	1618	DO l = 0, 3
	1619	CALL init_single_surface_properties( &
	1620	surf_def_v(l)%z0, &
	1621	tmp_2d%var, &
	1622	surf_def_v(l)%ns, &
	1623	tmp_2d%fill, &
	1624	surf_def_v(l)%i + surf_def_v(l)%ioff, &
	1625	surf_def_v(l)%j + surf_def_v(l)%joff )
	1626	ENDDO
	1627
	1628	ENDIF
	1629	!
[4514]	1630	!-- Input surface sensible heat flux.
	1631	IF ( check_existence( vars_pids, 'shf' ) ) THEN
	1632	!
	1633	!-- Read _FillValue attribute
	1634	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, &
	1635	.FALSE., 'shf' )
	1636	!
	1637	!-- Read variable
	1638	CALL get_variable( pids_id, 'shf', tmp_2d%var, &
	1639	nxl, nxr, nys, nyn )
	1640	!
	1641	!-- Initialize heat flux. Note, shf will be only initialized at
	1642	!-- default-type surfaces. At natural or urban shf is implicitly
	1643	!-- initialized by the respective parameter lists.
	1644	!-- Initialize horizontal surface elements.
	1645	CALL init_single_surface_properties( surf_def_h(0)%shf, &
	1646	tmp_2d%var, &
	1647	surf_def_h(0)%ns, &
	1648	tmp_2d%fill, &
	1649	surf_def_h(0)%i, &
	1650	surf_def_h(0)%j )
	1651	!
	1652	!-- Initialize heat flux also at vertical surface elements.
	1653	!-- Note, the actual 2D input arrays are only defined on the
	1654	!-- subdomain. Therefore, pass the index arrays with their respective
	1655	!-- offset values.
	1656	DO l = 0, 3
	1657	CALL init_single_surface_properties( &
	1658	surf_def_v(l)%shf, &
	1659	tmp_2d%var, &
	1660	surf_def_v(l)%ns, &
	1661	tmp_2d%fill, &
	1662	surf_def_v(l)%i + surf_def_v(l)%ioff, &
	1663	surf_def_v(l)%j + surf_def_v(l)%joff )
	1664	ENDDO
	1665
	1666	ENDIF
	1667	!
	1668	!-- Input surface sensible heat flux.
	1669	IF ( check_existence( vars_pids, 'qsws' ) ) THEN
	1670	!
	1671	!-- Read _FillValue attribute
	1672	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, &
	1673	.FALSE., 'qsws' )
	1674	!
	1675	!-- Read variable
	1676	CALL get_variable( pids_id, 'qsws', tmp_2d%var, &
	1677	nxl, nxr, nys, nyn )
	1678	!
	1679	!-- Initialize latent heat flux. Note, qsws will be only initialized at
	1680	!-- default-type surfaces. At natural or urban qsws is implicitly
	1681	!-- initialized by the respective parameter lists.
	1682	!-- Initialize horizontal surface elements.
	1683	CALL init_single_surface_properties( surf_def_h(0)%qsws, &
	1684	tmp_2d%var, &
	1685	surf_def_h(0)%ns, &
	1686	tmp_2d%fill, &
	1687	surf_def_h(0)%i, &
	1688	surf_def_h(0)%j )
	1689	!
	1690	!-- Initialize latent heat flux also at vertical surface elements.
	1691	!-- Note, the actual 2D input arrays are only defined on the
	1692	!-- subdomain. Therefore, pass the index arrays with their respective
	1693	!-- offset values.
	1694	DO l = 0, 3
	1695	CALL init_single_surface_properties( &
	1696	surf_def_v(l)%qsws, &
	1697	tmp_2d%var, &
	1698	surf_def_v(l)%ns, &
	1699	tmp_2d%fill, &
	1700	surf_def_v(l)%i + surf_def_v(l)%ioff, &
	1701	surf_def_v(l)%j + surf_def_v(l)%joff )
	1702	ENDDO
	1703
	1704	ENDIF
	1705	!
	1706	!-- Additional variables, can be initialized the
[4150]	1707	!-- same way.
[4514]	1708
[4150]	1709	!
[4187]	1710	!-- Finally, close the input file and deallocate temporary arrays
	1711	DEALLOCATE( vars_pids )
	1712
[4186]	1713	CALL close_input_file( pids_id )
[4151]	1714	#endif
	1715	DEALLOCATE( tmp_2d%var )
[4150]	1716	ENDIF
	1717	!
[2618]	1718	!-- Finally, if random_heatflux is set, disturb shf at horizontal
	1719	!-- surfaces. Actually, this should be done in surface_mod, where all other
	1720	!-- initializations of surface quantities are done. However, this
	1721	!-- would create a ring dependency, hence, it is done here. Maybe delete
	1722	!-- disturb_heatflux and tranfer the respective code directly into the
	1723	!-- initialization in surface_mod.
[2232]	1724	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
	1725	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[2618]	1726
[2232]	1727	IF ( use_surface_fluxes .AND. constant_heatflux .AND. &
	1728	random_heatflux ) THEN
	1729	IF ( surf_def_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_def_h(0) )
	1730	IF ( surf_lsm_h%ns >= 1 ) CALL disturb_heatflux( surf_lsm_h )
	1731	IF ( surf_usm_h%ns >= 1 ) CALL disturb_heatflux( surf_usm_h )
	1732	ENDIF
	1733	ENDIF
[680]	1734
[787]	1735	!
[3747]	1736	!-- Compute total sum of grid points and the mean surface level height for each
	1737	!-- statistic region. These are mainly used for horizontal averaging of
	1738	!-- turbulence statistics.
[2696]	1739	!-- ngp_2dh: number of grid points of a horizontal cross section through the
[3747]	1740	!-- respective statistic region
	1741	!-- ngp_3d: number of grid points of the respective statistic region
[2696]	1742	ngp_2dh_outer_l = 0
	1743	ngp_2dh_outer = 0
	1744	ngp_2dh_s_inner_l = 0
	1745	ngp_2dh_s_inner = 0
	1746	ngp_2dh_l = 0
	1747	ngp_2dh = 0
	1748	ngp_3d_inner_l = 0.0_wp
	1749	ngp_3d_inner = 0
	1750	ngp_3d = 0
	1751	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
	1752
	1753	mean_surface_level_height = 0.0_wp
	1754	mean_surface_level_height_l = 0.0_wp
	1755	!
	1756	!-- To do: New concept for these non-topography grid points!
	1757	DO sr = 0, statistic_regions
	1758	DO i = nxl, nxr
	1759	DO j = nys, nyn
	1760	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
	1761	!
	1762	!-- All xy-grid points
	1763	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1764	!
	1765	!-- Determine mean surface-level height. In case of downward-
	1766	!-- facing walls are present, more than one surface level exist.
	1767	!-- In this case, use the lowest surface-level height.
	1768	IF ( surf_def_h(0)%start_index(j,i) <= &
	1769	surf_def_h(0)%end_index(j,i) ) THEN
	1770	m = surf_def_h(0)%start_index(j,i)
	1771	k = surf_def_h(0)%k(m)
	1772	mean_surface_level_height_l(sr) = &
	1773	mean_surface_level_height_l(sr) + zw(k-1)
	1774	ENDIF
	1775	IF ( surf_lsm_h%start_index(j,i) <= &
	1776	surf_lsm_h%end_index(j,i) ) THEN
	1777	m = surf_lsm_h%start_index(j,i)
	1778	k = surf_lsm_h%k(m)
	1779	mean_surface_level_height_l(sr) = &
	1780	mean_surface_level_height_l(sr) + zw(k-1)
	1781	ENDIF
	1782	IF ( surf_usm_h%start_index(j,i) <= &
	1783	surf_usm_h%end_index(j,i) ) THEN
	1784	m = surf_usm_h%start_index(j,i)
	1785	k = surf_usm_h%k(m)
	1786	mean_surface_level_height_l(sr) = &
	1787	mean_surface_level_height_l(sr) + zw(k-1)
	1788	ENDIF
	1789
	1790	k_surf = k - 1
	1791
	1792	DO k = nzb, nzt+1
	1793	!
	1794	!-- xy-grid points above topography
	1795	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + &
[4346]	1796	MERGE( 1, 0, BTEST( wall_flags_total_0(k,j,i), 24 ) )
[2696]	1797
	1798	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + &
[4346]	1799	MERGE( 1, 0, BTEST( wall_flags_total_0(k,j,i), 22 ) )
[2696]	1800
	1801	ENDDO
	1802	!
	1803	!-- All grid points of the total domain above topography
	1804	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + ( nz - k_surf + 2 )
	1805
	1806
	1807
	1808	ENDIF
	1809	ENDDO
	1810	ENDDO
	1811	ENDDO
[3747]	1812
[2696]	1813	sr = statistic_regions + 1
	1814	#if defined( __parallel )
	1815	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1816	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
	1817	comm2d, ierr )
	1818	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1819	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
	1820	MPI_INTEGER, MPI_SUM, comm2d, ierr )
	1821	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1822	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
	1823	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
	1824	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1825	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
	1826	MPI_SUM, comm2d, ierr )
	1827	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
	1828	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1829	CALL MPI_ALLREDUCE( mean_surface_level_height_l(0), &
	1830	mean_surface_level_height(0), sr, MPI_REAL, &
	1831	MPI_SUM, comm2d, ierr )
	1832	mean_surface_level_height = mean_surface_level_height / REAL( ngp_2dh )
	1833	#else
	1834	ngp_2dh = ngp_2dh_l
	1835	ngp_2dh_outer = ngp_2dh_outer_l
	1836	ngp_2dh_s_inner = ngp_2dh_s_inner_l
	1837	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
	1838	mean_surface_level_height = mean_surface_level_height_l / REAL( ngp_2dh_l )
	1839	#endif
	1840
	1841	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
	1842	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
	1843
	1844	!
	1845	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
	1846	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
	1847	!-- the respective subdomain lie below the surface topography
	1848	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
	1849	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
	1850	ngp_3d_inner(:) )
	1851	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
	1852
	1853	DEALLOCATE( mean_surface_level_height_l, ngp_2dh_l, ngp_2dh_outer_l, &
	1854	ngp_3d_inner_l, ngp_3d_inner_tmp )
	1855	!
[2232]	1856	!-- Initialize surface forcing corresponding to large-scale forcing. Therein,
	1857	!-- initialize heat-fluxes, etc. via datatype. Revise it later!
	1858	IF ( large_scale_forcing .AND. lsf_surf ) THEN
	1859	IF ( use_surface_fluxes .AND. constant_heatflux ) THEN
	1860	CALL ls_forcing_surf ( simulated_time )
	1861	ENDIF
	1862	ENDIF
	1863	!
[3347]	1864	!-- Initializae 3D offline nesting in COSMO model and read data from
	1865	!-- external NetCDF file.
	1866	IF ( nesting_offline ) CALL nesting_offl_init
	1867	!
[787]	1868	!-- Initialize quantities for special advections schemes
	1869	CALL init_advec
[680]	1870
[667]	1871	!
[680]	1872	!-- Impose random perturbation on the horizontal velocity field and then
	1873	!-- remove the divergences from the velocity field at the initial stage
[1788]	1874	IF ( create_disturbances .AND. disturbance_energy_limit /= 0.0_wp .AND. &
	1875	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[680]	1876	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
	1877
[3987]	1878	IF ( debug_output ) CALL debug_message( 'creating disturbances + applying pressure solver', 'start' )
[3849]	1879	!
	1880	!-- Needed for both disturb_field and pres
	1881	!$ACC DATA &
	1882	!$ACC CREATE(tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1883	!$ACC COPY(u(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1884	!$ACC COPY(v(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
	1885
[2232]	1886	CALL disturb_field( 'u', tend, u )
	1887	CALL disturb_field( 'v', tend, v )
[1384]	1888
[3849]	1889	!$ACC DATA &
	1890	!$ACC CREATE(d(nzb+1:nzt,nys:nyn,nxl:nxr)) &
	1891	!$ACC COPY(w(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1892	!$ACC COPY(p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1893	!$ACC COPYIN(rho_air(nzb:nzt+1), rho_air_zw(nzb:nzt+1)) &
	1894	!$ACC COPYIN(ddzu(1:nzt+1), ddzw(1:nzt+1)) &
[4346]	1895	!$ACC COPYIN(wall_flags_total_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
[3849]	1896	!$ACC COPYIN(bc_h(0:1)) &
	1897	!$ACC COPYIN(bc_h(0)%i(1:bc_h(0)%ns)) &
	1898	!$ACC COPYIN(bc_h(0)%j(1:bc_h(0)%ns)) &
	1899	!$ACC COPYIN(bc_h(0)%k(1:bc_h(0)%ns)) &
	1900	!$ACC COPYIN(bc_h(1)%i(1:bc_h(1)%ns)) &
	1901	!$ACC COPYIN(bc_h(1)%j(1:bc_h(1)%ns)) &
	1902	!$ACC COPYIN(bc_h(1)%k(1:bc_h(1)%ns))
	1903
[680]	1904	n_sor = nsor_ini
	1905	CALL pres
	1906	n_sor = nsor
[1384]	1907
[3849]	1908	!$ACC END DATA
	1909	!$ACC END DATA
	1910
[3987]	1911	IF ( debug_output ) CALL debug_message( 'creating disturbances + applying pressure solver', 'end' )
	1912
[680]	1913	ENDIF
	1914
[3294]	1915	IF ( .NOT. ocean_mode ) THEN
[3274]	1916
	1917	ALLOCATE( hyp(nzb:nzt+1) )
	1918	ALLOCATE( d_exner(nzb:nzt+1) )
	1919	ALLOCATE( exner(nzb:nzt+1) )
	1920	ALLOCATE( hyrho(nzb:nzt+1) )
[1849]	1921	!
[3274]	1922	!-- Check temperature in case of too large domain height
	1923	DO k = nzb, nzt+1
	1924	IF ( ( pt_surface * exner_function(surface_pressure * 100.0_wp) - g/c_p * zu(k) ) < 0.0_wp ) THEN
	1925	WRITE( message_string, * ) 'absolute temperature < 0.0 at zu(', k, &
	1926	') = ', zu(k)
[3685]	1927	CALL message( 'init_3d_model', 'PA0142', 1, 2, 0, 6, 0 )
[3274]	1928	ENDIF
	1929	ENDDO
	1930
	1931	!
	1932	!-- Calculate vertical profile of the hydrostatic pressure (hyp)
	1933	hyp = barometric_formula(zu, pt_surface * exner_function(surface_pressure * 100.0_wp), surface_pressure * 100.0_wp)
	1934	d_exner = exner_function_invers(hyp)
	1935	exner = 1.0_wp / exner_function_invers(hyp)
	1936	hyrho = ideal_gas_law_rho_pt(hyp, pt_init)
	1937	!
	1938	!-- Compute reference density
	1939	rho_surface = ideal_gas_law_rho(surface_pressure * 100.0_wp, pt_surface * exner_function(surface_pressure * 100.0_wp))
	1940
[96]	1941	ENDIF
[1]	1942
	1943	!
	1944	!-- If required, initialize particles
[3159]	1945	IF ( agents_active ) CALL mas_init
	1946	!
[3937]	1947	!-- Initialization of synthetic turbulence generator
	1948	IF ( use_syn_turb_gen ) CALL stg_init
[2696]	1949	!
[3685]	1950	!-- Initializing actions for all other modules
	1951	CALL module_interface_init
[2696]	1952	!
[3685]	1953	!-- Initialize surface layer (done after LSM as roughness length are required
	1954	!-- for initialization
	1955	IF ( constant_flux_layer ) CALL init_surface_layer_fluxes
[2977]	1956	!
[3421]	1957	!-- Initialize surface data output
[3685]	1958	IF ( surface_output ) CALL surface_data_output_init
[3472]	1959	!
[673]	1960	!-- Initialize the ws-scheme.
[3448]	1961	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
[3711]	1962	!
	1963	!-- Perform post-initializing checks for all other modules
	1964	CALL module_interface_init_checks
[1]	1965
	1966	!
[709]	1967	!-- Setting weighting factors for calculation of perturbation pressure
[1762]	1968	!-- and turbulent quantities from the RK substeps
[709]	1969	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
	1970
[1322]	1971	weight_substep(1) = 1._wp/6._wp
	1972	weight_substep(2) = 3._wp/10._wp
	1973	weight_substep(3) = 8._wp/15._wp
[709]	1974
[1322]	1975	weight_pres(1) = 1._wp/3._wp
	1976	weight_pres(2) = 5._wp/12._wp
	1977	weight_pres(3) = 1._wp/4._wp
[709]	1978
	1979	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
	1980
[1322]	1981	weight_substep(1) = 1._wp/2._wp
	1982	weight_substep(2) = 1._wp/2._wp
[673]	1983
[1322]	1984	weight_pres(1) = 1._wp/2._wp
	1985	weight_pres(2) = 1._wp/2._wp
[709]	1986
[1001]	1987	ELSE ! for Euler-method
[709]	1988
[1340]	1989	weight_substep(1) = 1.0_wp
	1990	weight_pres(1) = 1.0_wp
[709]	1991
[673]	1992	ENDIF
	1993
	1994	!
[1]	1995	!-- Initialize Rayleigh damping factors
[1340]	1996	rdf = 0.0_wp
	1997	rdf_sc = 0.0_wp
	1998	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
[3294]	1999
	2000	IF ( .NOT. ocean_mode ) THEN
[108]	2001	DO k = nzb+1, nzt
	2002	IF ( zu(k) >= rayleigh_damping_height ) THEN
[1788]	2003	rdf(k) = rayleigh_damping_factor * &
[1340]	2004	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
[1788]	2005	/ ( zu(nzt) - rayleigh_damping_height ) ) &
[1]	2006	)**2
[108]	2007	ENDIF
	2008	ENDDO
	2009	ELSE
[3294]	2010	!
	2011	!-- In ocean mode, rayleigh damping is applied in the lower part of the
	2012	!-- model domain
[108]	2013	DO k = nzt, nzb+1, -1
	2014	IF ( zu(k) <= rayleigh_damping_height ) THEN
[1788]	2015	rdf(k) = rayleigh_damping_factor * &
[1340]	2016	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
[1788]	2017	/ ( rayleigh_damping_height - zu(nzb+1) ) ) &
[108]	2018	)**2
	2019	ENDIF
	2020	ENDDO
	2021	ENDIF
[3294]	2022
[1]	2023	ENDIF
[785]	2024	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
[1]	2025
	2026	!
[240]	2027	!-- Initialize the starting level and the vertical smoothing factor used for
	2028	!-- the external pressure gradient
[1340]	2029	dp_smooth_factor = 1.0_wp
[240]	2030	IF ( dp_external ) THEN
	2031	!
	2032	!-- Set the starting level dp_level_ind_b only if it has not been set before
	2033	!-- (e.g. in init_grid).
	2034	IF ( dp_level_ind_b == 0 ) THEN
	2035	ind_array = MINLOC( ABS( dp_level_b - zu ) )
	2036	dp_level_ind_b = ind_array(1) - 1 + nzb
	2037	! MINLOC uses lower array bound 1
	2038	ENDIF
	2039	IF ( dp_smooth ) THEN
[1340]	2040	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
[240]	2041	DO k = dp_level_ind_b+1, nzt
[1340]	2042	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
	2043	( REAL( k - dp_level_ind_b, KIND=wp ) / &
	2044	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
[240]	2045	ENDDO
	2046	ENDIF
	2047	ENDIF
	2048
	2049	!
[978]	2050	!-- Initialize damping zone for the potential temperature in case of
	2051	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
	2052	!-- at the inflow boundary and decreases to zero at pt_damping_width.
[1340]	2053	ptdf_x = 0.0_wp
	2054	ptdf_y = 0.0_wp
[1159]	2055	IF ( bc_lr_dirrad ) THEN
[996]	2056	DO i = nxl, nxr
[978]	2057	IF ( ( i * dx ) < pt_damping_width ) THEN
[1340]	2058	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
	2059	REAL( pt_damping_width - i * dx, KIND=wp ) / ( &
[1788]	2060	REAL( pt_damping_width, KIND=wp ) ) ) )**2
[73]	2061	ENDIF
	2062	ENDDO
[1159]	2063	ELSEIF ( bc_lr_raddir ) THEN
[996]	2064	DO i = nxl, nxr
[978]	2065	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
[1322]	2066	ptdf_x(i) = pt_damping_factor * &
[1340]	2067	SIN( pi * 0.5_wp * &
	2068	( ( i - nx ) * dx + pt_damping_width ) / &
	2069	REAL( pt_damping_width, KIND=wp ) )**2
[73]	2070	ENDIF
[978]	2071	ENDDO
[1159]	2072	ELSEIF ( bc_ns_dirrad ) THEN
[996]	2073	DO j = nys, nyn
[978]	2074	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
[1322]	2075	ptdf_y(j) = pt_damping_factor * &
[1340]	2076	SIN( pi * 0.5_wp * &
	2077	( ( j - ny ) * dy + pt_damping_width ) / &
	2078	REAL( pt_damping_width, KIND=wp ) )**2
[1]	2079	ENDIF
[978]	2080	ENDDO
[1159]	2081	ELSEIF ( bc_ns_raddir ) THEN
[996]	2082	DO j = nys, nyn
[978]	2083	IF ( ( j * dy ) < pt_damping_width ) THEN
[1322]	2084	ptdf_y(j) = pt_damping_factor * &
[1340]	2085	SIN( pi * 0.5_wp * &
	2086	( pt_damping_width - j * dy ) / &
	2087	REAL( pt_damping_width, KIND=wp ) )**2
[1]	2088	ENDIF
[73]	2089	ENDDO
[1]	2090	ENDIF
[51]	2091
[1]	2092	!
	2093	!-- Input binary data file is not needed anymore. This line must be placed
	2094	!-- after call of user_init!
	2095	CALL close_file( 13 )
[2934]	2096	!
	2097	!-- In case of nesting, put an barrier to assure that all parent and child
	2098	!-- domains finished initialization.
	2099	#if defined( __parallel )
	2100	IF ( nested_run ) CALL MPI_BARRIER( MPI_COMM_WORLD, ierr )
	2101	#endif
[1]	2102
[2934]	2103
[3987]	2104	CALL location_message( 'model initialization', 'finished' )
[1]	2105
	2106	END SUBROUTINE init_3d_model

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