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init_3d_model.f90 @ 4676

Last change on this file since 4676 was 4671, checked in by pavelkrc, 4 years ago

Radiative transfer model RTM version 4.1

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Rev	Line
[1682]	1	!> @file init_3d_model.f90
[4648]	2	!--------------------------------------------------------------------------------------------------!
[2696]	3	! This file is part of the PALM model system.
[1036]	4	!
[4648]	5	! PALM is free software: you can redistribute it and/or modify it under the terms of the GNU General
	6	! Public License as published by the Free Software Foundation, either version 3 of the License, or
	7	! (at your option) any later version.
[1036]	8	!
[4648]	9	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
	10	! implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
	11	! Public License for more details.
[1036]	12	!
[4648]	13	! You should have received a copy of the GNU General Public License along with PALM. If not, see
	14	! <http://www.gnu.org/licenses/>.
[1036]	15	!
[4360]	16	! Copyright 1997-2020 Leibniz Universitaet Hannover
[4648]	17	!--------------------------------------------------------------------------------------------------!
[1036]	18	!
[254]	19	! Current revisions:
[732]	20	! ------------------
[4648]	21	!
	22	!
[2233]	23	! Former revisions:
	24	! -----------------
	25	! $Id: init_3d_model.f90 4671 2020-09-09 20:27:58Z pavelkrc $
[4671]	26	! Implementation of downward facing USM and LSM surfaces
	27	!
	28	! 4648 2020-08-25 07:52:08Z raasch
[4648]	29	! file re-formatted to follow the PALM coding standard
	30	!
	31	! 4548 2020-05-28 19:36:45Z suehring
[4548]	32	! Bugfix, move call for lsf_forcing_surf after lsf_init is called
[4648]	33	!
[4548]	34	! 4514 2020-04-30 16:29:59Z suehring
[4648]	35	! Add possibility to initialize surface sensible and latent heat fluxes via a static driver.
	36	!
[4514]	37	! 4493 2020-04-10 09:49:43Z pavelkrc
[4648]	38	! Overwrite u_init, v_init, pt_init, q_init and s_init with hom for all cyclic_fill-cases, not only
	39	! for turbulent_inflow = .TRUE.
	40	!
[4365]	41	! 4360 2020-01-07 11:25:50Z suehring
[4648]	42	! Introduction of wall_flags_total_0, which currently sets bits based on static topography
	43	! information used in wall_flags_static_0
	44	!
[4346]	45	! 4329 2019-12-10 15:46:36Z motisi
[4329]	46	! Renamed wall_flags_0 to wall_flags_static_0
[4648]	47	!
[4329]	48	! 4286 2019-10-30 16:01:14Z resler
[4227]	49	! implement new palm_date_time_mod
[4648]	50	!
[4227]	51	! 4223 2019-09-10 09:20:47Z gronemeier
[4648]	52	! Deallocate temporary string array since it may be re-used to read different input data in other
	53	! modules
	54	!
[4187]	55	! 4186 2019-08-23 16:06:14Z suehring
[4648]	56	! Design change, use variables defined in netcdf_data_input_mod to read netcd variables rather than
	57	! define local ones.
	58	!
[4186]	59	! 4185 2019-08-23 13:49:38Z oliver.maas
[4185]	60	! For initializing_actions = ' cyclic_fill':
[4648]	61	! Overwrite u_init, v_init, pt_init, q_init and s_init with the (temporally) and horizontally
	62	! averaged vertical profiles from the end of the prerun, because these profiles shall be used as the
	63	! basic state for the rayleigh damping and the pt_damping.
	64	!
[4185]	65	! 4182 2019-08-22 15:20:23Z scharf
[4182]	66	! Corrected "Former revisions" section
[4648]	67	!
[4182]	68	! 4168 2019-08-16 13:50:17Z suehring
[4168]	69	! Replace function get_topography_top_index by topo_top_ind
[4648]	70	!
[4168]	71	! 4151 2019-08-09 08:24:30Z suehring
[4151]	72	! Add netcdf directive around input calls (fix for last commit)
[4648]	73	!
[4151]	74	! 4150 2019-08-08 20:00:47Z suehring
[4648]	75	! Input of additional surface variables independent on land- or urban-surface model
	76	!
[4150]	77	! 4131 2019-08-02 11:06:18Z monakurppa
[4131]	78	! Allocate sums and sums_l to allow profile output for salsa variables.
[4648]	79	!
[4131]	80	! 4130 2019-08-01 13:04:13Z suehring
[4648]	81	! Effectively reduce 3D initialization to 1D initial profiles. This is because 3D initialization
	82	! produces structures in the w-component that are correlated with the processor grid for some
	83	! unknown reason
	84	!
[4130]	85	! 4090 2019-07-11 15:06:47Z Giersch
[4090]	86	! Unused variables removed
[4648]	87	!
[4090]	88	! 4088 2019-07-11 13:57:56Z Giersch
[4088]	89	! Pressure and density profile calculations revised using basic functions
[4648]	90	!
[4088]	91	! 4048 2019-06-21 21:00:21Z knoop
[4028]	92	! Further modularization of particle code components
[4648]	93	!
[4028]	94	! 4017 2019-06-06 12:16:46Z schwenkel
[4648]	95	! Convert most location messages to debug messages to reduce output in job logfile to a minimum
	96	!
[3939]	97	! unused variable removed
[4648]	98	!
[3939]	99	! 3937 2019-04-29 15:09:07Z suehring
[4648]	100	! Move initialization of synthetic turbulence generator behind initialization of offline nesting.
	101	! Remove call for stg_adjust, as this is now already done in stg_init.
	102	!
[3937]	103	! 3900 2019-04-16 15:17:43Z suehring
[3900]	104	! Fix problem with LOD = 2 initialization
[4648]	105	!
[3900]	106	! 3885 2019-04-11 11:29:34Z kanani
[4648]	107	! Changes related to global restructuring of location messages and introduction of additional debug
	108	! messages
	109	!
[3885]	110	! 3849 2019-04-01 16:35:16Z knoop
[3747]	111	! Move initialization of rmask before initializing user_init_arrays
[4648]	112	!
[3747]	113	! 3711 2019-01-31 13:44:26Z knoop
[3711]	114	! Introduced module_interface_init_checks for post-init checks in modules
[4648]	115	!
[3711]	116	! 3700 2019-01-26 17:03:42Z knoop
[3685]	117	! Some interface calls moved to module_interface + cleanup
[4648]	118	!
[3685]	119	! 3648 2019-01-02 16:35:46Z suehring
[3648]	120	! Rename subroutines for surface-data output
[3569]	121	!
[4182]	122	! Revision 1.1 1998/03/09 16:22:22 raasch
	123	! Initial revision
	124	!
	125	!
[1]	126	! Description:
	127	! ------------
[1682]	128	!> Allocation of arrays and initialization of the 3D model via
	129	!> a) pre-run the 1D model
	130	!> or
	131	!> b) pre-set constant linear profiles
	132	!> or
	133	!> c) read values of a previous run
[4648]	134	!--------------------------------------------------------------------------------------------------!
[1682]	135	SUBROUTINE init_3d_model
[1]	136
[3298]	137
[667]	138	USE advec_ws
[1320]	139
[1]	140	USE arrays_3d
[1849]	141
[4648]	142	USE basic_constants_and_equations_mod, &
	143	ONLY: barometric_formula, c_p, exner_function, exner_function_invers, g, &
	144	ideal_gas_law_rho, ideal_gas_law_rho_pt, l_v, pi
[3274]	145
[4648]	146	USE bulk_cloud_model_mod, &
[3685]	147	ONLY: bulk_cloud_model
[3274]	148
[4648]	149	USE chem_modules, &
[3685]	150	ONLY: max_pr_cs ! ToDo: this dependency needs to be removed cause it is ugly #new_dom
[3298]	151
[1]	152	USE control_parameters
[3298]	153
[4648]	154	USE grid_variables, &
[2037]	155	ONLY: dx, dy, ddx2_mg, ddy2_mg
[2817]	156
[1]	157	USE indices
[3469]	158
[1320]	159	USE kinds
[4648]	160
	161	USE lsf_nudging_mod, &
[3685]	162	ONLY: ls_forcing_surf
[1849]	163
[4648]	164	USE model_1d_mod, &
[3241]	165	ONLY: init_1d_model, l1d, u1d, v1d
[2338]	166
[4648]	167	USE module_interface, &
	168	ONLY: module_interface_init_arrays, &
	169	module_interface_init, &
[3711]	170	module_interface_init_checks
[3685]	171
[4648]	172	USE multi_agent_system_mod, &
[3159]	173	ONLY: agents_active, mas_init
	174
[4648]	175	USE netcdf_interface, &
[3700]	176	ONLY: dots_max
[2696]	177
[4648]	178	USE netcdf_data_input_mod, &
	179	ONLY: char_fill, &
	180	check_existence, &
	181	close_input_file, &
	182	get_attribute, &
	183	get_variable, &
	184	init_3d, &
	185	input_pids_static, &
	186	inquire_num_variables, &
	187	inquire_variable_names, &
	188	input_file_static, &
	189	netcdf_data_input_init_3d, &
	190	num_var_pids, &
	191	open_read_file, &
	192	pids_id, &
	193	real_2d, &
[4186]	194	vars_pids
[4648]	195
	196	USE nesting_offl_mod, &
[3347]	197	ONLY: nesting_offl_init
[3294]	198
[4648]	199	USE palm_date_time_mod, &
[4227]	200	ONLY: set_reference_date_time
	201
[1]	202	USE pegrid
[3298]	203
[3524]	204	#if defined( __parallel )
[4648]	205	USE pmc_interface, &
[2934]	206	ONLY: nested_run
[3524]	207	#endif
[2934]	208
[4648]	209	USE random_function_mod
[3685]	210
[4648]	211	USE random_generator_parallel, &
[2172]	212	ONLY: init_parallel_random_generator
[3685]	213
[4648]	214	USE read_restart_data_mod, &
	215	ONLY: rrd_local, rrd_read_parts_of_global
[3685]	216
[4648]	217	USE statistics, &
	218	ONLY: hom, hom_sum, mean_surface_level_height, pr_palm, rmask, statistic_regions, sums, &
	219	sums_divnew_l, sums_divold_l, sums_l, sums_l_l, sums_wsts_bc_l, ts_value, &
[1833]	220	weight_pres, weight_substep
[2259]	221
[4648]	222	USE synthetic_turbulence_generator_mod, &
[3939]	223	ONLY: stg_init, use_syn_turb_gen
[3685]	224
[4648]	225	USE surface_layer_fluxes_mod, &
[1691]	226	ONLY: init_surface_layer_fluxes
[2232]	227
[4648]	228	USE surface_mod, &
	229	ONLY : init_single_surface_properties, &
	230	init_surface_arrays, &
	231	init_surfaces, &
	232	surf_def_h, &
	233	surf_def_v, &
	234	surf_lsm_h, &
[4168]	235	surf_usm_h
[3685]	236
[3849]	237	#if defined( _OPENACC )
[4648]	238	USE surface_mod, &
[3849]	239	ONLY : bc_h
	240	#endif
	241
[4648]	242	USE surface_data_output_mod, &
[3648]	243	ONLY: surface_data_output_init
[3685]	244
[2007]	245	USE transpose_indices
[1]	246
[4648]	247
[1]	248	IMPLICIT NONE
[4648]	249
[4150]	250	INTEGER(iwp) :: i !< grid index in x direction
	251	INTEGER(iwp) :: ind_array(1) !< dummy used to determine start index for external pressure forcing
	252	INTEGER(iwp) :: j !< grid index in y direction
	253	INTEGER(iwp) :: k !< grid index in z direction
	254	INTEGER(iwp) :: k_surf !< surface level index
[4648]	255	INTEGER(iwp) :: l !< running index over surface orientation
	256	INTEGER(iwp) :: m !< index of surface element in surface data type
[4150]	257	INTEGER(iwp) :: nz_u_shift !< topography-top index on u-grid, used to vertically shift initial profiles
	258	INTEGER(iwp) :: nz_v_shift !< topography-top index on v-grid, used to vertically shift initial profiles
	259	INTEGER(iwp) :: nz_w_shift !< topography-top index on w-grid, used to vertically shift initial profiles
	260	INTEGER(iwp) :: nz_s_shift !< topography-top index on scalar-grid, used to vertically shift initial profiles
	261	INTEGER(iwp) :: nz_u_shift_l !< topography-top index on u-grid, used to vertically shift initial profiles
	262	INTEGER(iwp) :: nz_v_shift_l !< topography-top index on v-grid, used to vertically shift initial profiles
	263	INTEGER(iwp) :: nz_w_shift_l !< topography-top index on w-grid, used to vertically shift initial profiles
	264	INTEGER(iwp) :: nz_s_shift_l !< topography-top index on scalar-grid, used to vertically shift initial profiles
	265	INTEGER(iwp) :: nzt_l !< index of top PE boundary for multigrid level
	266	INTEGER(iwp) :: sr !< index of statistic region
[1]	267
[4648]	268	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !< toal number of horizontal grid points in statistical region on
	269	!< subdomain
[1]	270
[4648]	271	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !< number of horizontal non-wall bounded grid points on
	272	!< subdomain
	273	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !< number of horizontal non-topography grid points on
	274	!< subdomain
[1]	275
[2037]	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
[4648]	279	REAL(wp), DIMENSION(:), ALLOCATABLE :: init_l !< dummy array used for averaging 3D data to obtain
	280	!< inital profiles
	281	REAL(wp), DIMENSION(:), ALLOCATABLE :: mean_surface_level_height_l !< mean surface level height on subdomain
	282	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !< total number of non-topography grid points on subdomain
	283	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !< total number of non-topography grid points
	284	REAL(wp), DIMENSION(:), ALLOCATABLE :: p_hydrostatic !< hydrostatic pressure
	285
[3547]	286	REAL(wp), DIMENSION(1:3) :: volume_flow_area_l !< area of lateral and top model domain surface on local subdomain
	287	REAL(wp), DIMENSION(1:3) :: volume_flow_initial_l !< initial volume flow into model domain
[1]	288
[4648]	289	TYPE(real_2d) :: tmp_2d !< temporary variable to input additional surface-data from static file
[1]	290
[3987]	291	CALL location_message( 'model initialization', 'start' )
[4227]	292	!
	293	!-- Set reference date-time
	294	CALL set_reference_date_time( date_time_str=origin_date_time )
[3987]	295
	296	IF ( debug_output ) CALL debug_message( 'allocating arrays', 'start' )
[1]	297	!
	298	!-- Allocate arrays
[4648]	299	ALLOCATE( mean_surface_level_height(0:statistic_regions), &
	300	mean_surface_level_height_l(0:statistic_regions), &
	301	ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
	302	ngp_3d(0:statistic_regions), &
	303	ngp_3d_inner(0:statistic_regions), &
	304	ngp_3d_inner_l(0:statistic_regions), &
	305	ngp_3d_inner_tmp(0:statistic_regions), &
	306	sums_divnew_l(0:statistic_regions), &
[1]	307	sums_divold_l(0:statistic_regions) )
[1195]	308	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
[4648]	309	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
	310	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
	311	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
	312	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
	313	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
	314	sums(nzb:nzt+1,pr_palm+max_pr_user+max_pr_cs+max_pr_salsa), &
[4131]	315	sums_l(nzb:nzt+1,pr_palm+max_pr_user+max_pr_cs+max_pr_salsa,0:threads_per_task-1), &
[4648]	316	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
[3700]	317	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions) )
	318	ALLOCATE( ts_value(dots_max,0:statistic_regions) )
[978]	319	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
[1]	320
[4648]	321	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
	322	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1010]	323	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	324
[4648]	325	ALLOCATE( pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	326	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	327	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	328	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	329	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	330	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	331	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	332	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	333	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	334	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	335	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1788]	336	IF ( .NOT. neutral ) THEN
[1032]	337	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	338	ENDIF
[673]	339	!
[3747]	340	!-- Pre-set masks for regional statistics. Default is the total model domain.
[4648]	341	!-- Ghost points are excluded because counting values at the ghost boundaries would bias the
	342	!-- statistics.
[3747]	343	rmask = 1.0_wp
	344	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
	345	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
	346	!
[4648]	347	!-- Following array is required for perturbation pressure within the iterative pressure solvers. For
	348	!-- the multistep schemes (Runge-Kutta), array p holds the weighted average of the substeps and
	349	!-- cannot be used in the Poisson solver.
[707]	350	IF ( psolver == 'sor' ) THEN
	351	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1575]	352	ELSEIF ( psolver(1:9) == 'multigrid' ) THEN
[707]	353	!
	354	!-- For performance reasons, multigrid is using one ghost layer only
	355	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[673]	356	ENDIF
[1]	357
[1111]	358	!
	359	!-- Array for storing constant coeffficients of the tridiagonal solver
	360	IF ( psolver == 'poisfft' ) THEN
[1212]	361	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
[1111]	362	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
	363	ENDIF
	364
[1960]	365	IF ( humidity ) THEN
[1]	366	!
[1960]	367	!-- 3D-humidity
[4648]	368	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	369	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	370	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	371	vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	372	ENDIF
	373
[1960]	374	IF ( passive_scalar ) THEN
[1]	375
[1960]	376	!
	377	!-- 3D scalar arrays
[4648]	378	ALLOCATE( s_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	379	s_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1960]	380	s_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[3636]	381
[1960]	382	ENDIF
	383
[1]	384	!
[4648]	385	!-- Allocate and set 1d-profiles for Stokes drift velocity. It may be set to non-zero values later
	386	!-- in ocean_init.
	387	ALLOCATE( u_stokes_zu(nzb:nzt+1), u_stokes_zw(nzb:nzt+1), &
[3302]	388	v_stokes_zu(nzb:nzt+1), v_stokes_zw(nzb:nzt+1) )
	389	u_stokes_zu(:) = 0.0_wp
	390	u_stokes_zw(:) = 0.0_wp
	391	v_stokes_zu(:) = 0.0_wp
	392	v_stokes_zw(:) = 0.0_wp
	393
	394	!
[2037]	395	!-- Allocation of anelastic and Boussinesq approximation specific arrays
	396	ALLOCATE( p_hydrostatic(nzb:nzt+1) )
	397	ALLOCATE( rho_air(nzb:nzt+1) )
	398	ALLOCATE( rho_air_zw(nzb:nzt+1) )
	399	ALLOCATE( drho_air(nzb:nzt+1) )
	400	ALLOCATE( drho_air_zw(nzb:nzt+1) )
	401	!
[4648]	402	!-- Density profile calculation for anelastic and Boussinesq approximation.
	403	!-- In case of a Boussinesq approximation, a constant density is calculated mainly for output
	404	!-- purposes. This density does not need to be considered in the model's system of equations.
[4088]	405	IF ( TRIM( approximation ) == 'anelastic' ) THEN
[2037]	406	DO k = nzb, nzt+1
[4648]	407	p_hydrostatic(k) = barometric_formula(zu(k), pt_surface * &
	408	exner_function(surface_pressure * 100.0_wp), &
	409	surface_pressure * 100.0_wp)
	410
[4088]	411	rho_air(k) = ideal_gas_law_rho_pt(p_hydrostatic(k), pt_init(k))
[2037]	412	ENDDO
[4648]	413
[2037]	414	DO k = nzb, nzt
	415	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
	416	ENDDO
[4648]	417
	418	rho_air_zw(nzt+1) = rho_air_zw(nzt) + 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
	419
[2037]	420	ELSE
[2252]	421	DO k = nzb, nzt+1
[4648]	422	p_hydrostatic(k) = barometric_formula(zu(nzb), pt_surface * &
	423	exner_function(surface_pressure * 100.0_wp), &
	424	surface_pressure * 100.0_wp)
[4088]	425
	426	rho_air(k) = ideal_gas_law_rho_pt(p_hydrostatic(k), pt_init(nzb))
[2252]	427	ENDDO
[4648]	428
[2252]	429	DO k = nzb, nzt
	430	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
	431	ENDDO
[4648]	432
	433	rho_air_zw(nzt+1) = rho_air_zw(nzt) + 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
	434
[2037]	435	ENDIF
[2696]	436	!
[4648]	437	!-- Compute the inverse density array in order to avoid expencive divisions
[2037]	438	drho_air = 1.0_wp / rho_air
	439	drho_air_zw = 1.0_wp / rho_air_zw
	440
	441	!
	442	!-- Allocation of flux conversion arrays
	443	ALLOCATE( heatflux_input_conversion(nzb:nzt+1) )
	444	ALLOCATE( waterflux_input_conversion(nzb:nzt+1) )
	445	ALLOCATE( momentumflux_input_conversion(nzb:nzt+1) )
	446	ALLOCATE( heatflux_output_conversion(nzb:nzt+1) )
	447	ALLOCATE( waterflux_output_conversion(nzb:nzt+1) )
	448	ALLOCATE( momentumflux_output_conversion(nzb:nzt+1) )
	449
	450	!
[4648]	451	!-- Calculate flux conversion factors according to approximation and in-/output mode
[2037]	452	DO k = nzb, nzt+1
	453
	454	IF ( TRIM( flux_input_mode ) == 'kinematic' ) THEN
	455	heatflux_input_conversion(k) = rho_air_zw(k)
	456	waterflux_input_conversion(k) = rho_air_zw(k)
	457	momentumflux_input_conversion(k) = rho_air_zw(k)
	458	ELSEIF ( TRIM( flux_input_mode ) == 'dynamic' ) THEN
[3274]	459	heatflux_input_conversion(k) = 1.0_wp / c_p
[2037]	460	waterflux_input_conversion(k) = 1.0_wp / l_v
	461	momentumflux_input_conversion(k) = 1.0_wp
	462	ENDIF
	463
	464	IF ( TRIM( flux_output_mode ) == 'kinematic' ) THEN
	465	heatflux_output_conversion(k) = drho_air_zw(k)
	466	waterflux_output_conversion(k) = drho_air_zw(k)
	467	momentumflux_output_conversion(k) = drho_air_zw(k)
	468	ELSEIF ( TRIM( flux_output_mode ) == 'dynamic' ) THEN
[3274]	469	heatflux_output_conversion(k) = c_p
[2037]	470	waterflux_output_conversion(k) = l_v
	471	momentumflux_output_conversion(k) = 1.0_wp
	472	ENDIF
	473
	474	IF ( .NOT. humidity ) THEN
	475	waterflux_input_conversion(k) = 1.0_wp
	476	waterflux_output_conversion(k) = 1.0_wp
	477	ENDIF
	478
	479	ENDDO
	480
	481	!
[4648]	482	!-- In case of multigrid method, compute grid lengths and grid factors for the grid levels with
	483	!-- respective density on each grid.
[2037]	484	IF ( psolver(1:9) == 'multigrid' ) THEN
	485
	486	ALLOCATE( ddx2_mg(maximum_grid_level) )
	487	ALLOCATE( ddy2_mg(maximum_grid_level) )
	488	ALLOCATE( dzu_mg(nzb+1:nzt+1,maximum_grid_level) )
	489	ALLOCATE( dzw_mg(nzb+1:nzt+1,maximum_grid_level) )
	490	ALLOCATE( f1_mg(nzb+1:nzt,maximum_grid_level) )
	491	ALLOCATE( f2_mg(nzb+1:nzt,maximum_grid_level) )
	492	ALLOCATE( f3_mg(nzb+1:nzt,maximum_grid_level) )
	493	ALLOCATE( rho_air_mg(nzb:nzt+1,maximum_grid_level) )
	494	ALLOCATE( rho_air_zw_mg(nzb:nzt+1,maximum_grid_level) )
	495
	496	dzu_mg(:,maximum_grid_level) = dzu
	497	rho_air_mg(:,maximum_grid_level) = rho_air
[4648]	498	!
	499	!-- Next line to ensure an equally spaced grid.
[2037]	500	dzu_mg(1,maximum_grid_level) = dzu(2)
[4648]	501	rho_air_mg(nzb,maximum_grid_level) = rho_air(nzb) + (rho_air(nzb) - rho_air(nzb+1))
[2037]	502
	503	dzw_mg(:,maximum_grid_level) = dzw
	504	rho_air_zw_mg(:,maximum_grid_level) = rho_air_zw
	505	nzt_l = nzt
	506	DO l = maximum_grid_level-1, 1, -1
	507	dzu_mg(nzb+1,l) = 2.0_wp * dzu_mg(nzb+1,l+1)
	508	dzw_mg(nzb+1,l) = 2.0_wp * dzw_mg(nzb+1,l+1)
[4648]	509	rho_air_mg(nzb,l) = rho_air_mg(nzb,l+1) + ( rho_air_mg(nzb,l+1) - &
	510	rho_air_mg(nzb+1,l+1) )
	511	rho_air_zw_mg(nzb,l) = rho_air_zw_mg(nzb,l+1) + ( rho_air_zw_mg(nzb,l+1) - &
	512	rho_air_zw_mg(nzb+1,l+1) )
[2037]	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) )
[4648]	533	f1_mg(k,l) = 2.0_wp * ( ddx2_mg(l) + ddy2_mg(l) ) &
[2037]	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	!
[4648]	551	!-- Arrays to store velocity data from t-dt and the phase speeds which are needed for radiation
	552	!-- boundary conditions.
[3182]	553	IF ( bc_radiation_l ) THEN
[4648]	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
[4648]	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
[4648]	564	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), c_w(nzb:nzt+1,nysg:nyng) )
[106]	565	ENDIF
[3182]	566	IF ( bc_radiation_s ) THEN
[4648]	567	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
	568	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
[667]	569	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
[73]	570	ENDIF
[3182]	571	IF ( bc_radiation_n ) THEN
[4648]	572	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	573	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
[667]	574	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
[73]	575	ENDIF
[3182]	576	IF ( bc_radiation_s .OR. bc_radiation_n ) THEN
[4648]	577	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), c_w(nzb:nzt+1,nxlg:nxrg) )
[106]	578	ENDIF
[4648]	579	IF ( bc_radiation_l .OR. bc_radiation_r .OR. bc_radiation_s .OR. bc_radiation_n ) THEN
	580	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
[978]	581	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
	582	ENDIF
[73]	583
	584	!
[1]	585	!-- Initial assignment of the pointers
[1032]	586	IF ( .NOT. neutral ) THEN
	587	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
	588	ELSE
	589	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
	590	ENDIF
[1001]	591	u => u_1; u_p => u_2; tu_m => u_3
	592	v => v_1; v_p => v_2; tv_m => v_3
	593	w => w_1; w_p => w_2; tw_m => w_3
[1]	594
[1960]	595	IF ( humidity ) THEN
[1001]	596	q => q_1; q_p => q_2; tq_m => q_3
[3274]	597	vpt => vpt_1
[1001]	598	ENDIF
[4648]	599
[1960]	600	IF ( passive_scalar ) THEN
	601	s => s_1; s_p => s_2; ts_m => s_3
[4648]	602	ENDIF
[1]	603
	604	!
[2696]	605	!-- Initialize surface arrays
[2232]	606	CALL init_surface_arrays
	607	!
[3294]	608	!-- Allocate arrays for other modules
[3685]	609	CALL module_interface_init_arrays
[1551]	610
[1914]	611
[2320]	612	!
[4648]	613	!-- Allocate arrays containing the RK coefficient for calculation of perturbation pressure and
	614	!-- turbulent fluxes. At this point values are set for pressure calculation during initialization
	615	!-- (where no timestep is done). Further below the values needed within the timestep scheme will be
	616	!-- set.
	617	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
[1878]	618	weight_pres(1:intermediate_timestep_count_max) )
[1340]	619	weight_substep = 1.0_wp
	620	weight_pres = 1.0_wp
[1918]	621	intermediate_timestep_count = 0 ! needed when simulated_time = 0.0
[4648]	622
[3987]	623	IF ( debug_output ) CALL debug_message( 'allocating arrays', 'end' )
[1918]	624
[673]	625	!
[3014]	626	!-- Initialize time series
	627	ts_value = 0.0_wp
	628
	629	!
[1918]	630	!-- Initialize local summation arrays for routine flow_statistics.
[4648]	631	!-- This is necessary because they may not yet have been initialized when they are called from
	632	!-- flow_statistics (or - depending on the chosen model run - are never initialized)
	633	sums_divnew_l = 0.0_wp
	634	sums_divold_l = 0.0_wp
	635	sums_l_l = 0.0_wp
	636	sums_wsts_bc_l = 0.0_wp
	637
[1918]	638	!
[1]	639	!-- Initialize model variables
[4648]	640	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[328]	641	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[1]	642	!
[2696]	643	!-- Initialization with provided input data derived from larger-scale model
	644	IF ( INDEX( initializing_actions, 'inifor' ) /= 0 ) THEN
[3987]	645	IF ( debug_output ) CALL debug_message( 'initializing with INIFOR', 'start' )
[2696]	646	!
[4648]	647	!-- Read initial 1D profiles or 3D data from NetCDF file, depending on the provided
	648	!-- level-of-detail.
	649	!-- At the moment, only u, v, w, pt and q are provided.
[2696]	650	CALL netcdf_data_input_init_3d
	651	!
[4648]	652	!-- Please note, Inifor provides data from nzb+1 to nzt.
	653	!-- Bottom and top boundary conditions for Inifor profiles are already set (just after
	654	!-- reading), so that this is not necessary here.
	655	!-- Depending on the provided level-of-detail, initial Inifor data is either stored on data
	656	!-- type (lod=1), or directly on 3D arrays (lod=2).
	657	!-- In order to obtain also initial profiles in case of lod=2 (which is required for e.g.
	658	!-- damping), average over 3D data.
[3182]	659	IF( init_3d%lod_u == 1 ) THEN
	660	u_init = init_3d%u_init
[4648]	661	ELSEIF( init_3d%lod_u == 2 ) THEN
	662	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	663	DO k = nzb, nzt+1
	664	init_l(k) = SUM( u(k,nys:nyn,nxl:nxr) )
	665	ENDDO
	666	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
[1384]	667
[3182]	668	#if defined( __parallel )
[4648]	669	CALL MPI_ALLREDUCE( init_l, u_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	670	#else
	671	u_init = init_l
	672	#endif
	673	DEALLOCATE( init_l )
[3051]	674
[2696]	675	ENDIF
[4648]	676
	677	IF( init_3d%lod_v == 1 ) THEN
[3182]	678	v_init = init_3d%v_init
[4648]	679	ELSEIF( init_3d%lod_v == 2 ) THEN
	680	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	681	DO k = nzb, nzt+1
	682	init_l(k) = SUM( v(k,nys:nyn,nxl:nxr) )
	683	ENDDO
	684	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
[2696]	685
[3182]	686	#if defined( __parallel )
[4648]	687	CALL MPI_ALLREDUCE( init_l, v_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	688	#else
	689	v_init = init_l
	690	#endif
	691	DEALLOCATE( init_l )
	692	ENDIF
	693	IF( .NOT. neutral ) THEN
	694	IF( init_3d%lod_pt == 1 ) THEN
	695	pt_init = init_3d%pt_init
[4648]	696	ELSEIF( init_3d%lod_pt == 2 ) THEN
	697	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	698	DO k = nzb, nzt+1
	699	init_l(k) = SUM( pt(k,nys:nyn,nxl:nxr) )
	700	ENDDO
	701	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
	702
	703	#if defined( __parallel )
[4648]	704	CALL MPI_ALLREDUCE( init_l, pt_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	705	#else
	706	pt_init = init_l
	707	#endif
	708	DEALLOCATE( init_l )
	709	ENDIF
	710	ENDIF
	711
	712
	713	IF( humidity ) THEN
	714	IF( init_3d%lod_q == 1 ) THEN
	715	q_init = init_3d%q_init
[4648]	716	ELSEIF( init_3d%lod_q == 2 ) THEN
	717	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	718	DO k = nzb, nzt+1
	719	init_l(k) = SUM( q(k,nys:nyn,nxl:nxr) )
	720	ENDDO
	721	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
	722
	723	#if defined( __parallel )
[4648]	724	CALL MPI_ALLREDUCE( init_l, q_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	725	#else
	726	q_init = init_l
	727	#endif
	728	DEALLOCATE( init_l )
	729	ENDIF
	730	ENDIF
	731
[2696]	732	!
[4648]	733	!-- Write initial profiles onto 3D arrays.
	734	!-- Work-around, 3D initialization of u,v,w creates artificial structures which correlate with
	735	!-- the processor grid. The reason for this is still unknown. To work-around this, 3D
	736	!-- initialization will be effectively reduce to a 1D initialization where no such artificial
	737	!-- structures appear.
[2696]	738	DO i = nxlg, nxrg
	739	DO j = nysg, nyng
[4648]	740	IF( init_3d%lod_u == 1 .OR. init_3d%lod_u == 2 ) u(:,j,i) = u_init(:)
	741	IF( init_3d%lod_v == 1 .OR. init_3d%lod_u == 2 ) v(:,j,i) = v_init(:)
	742	IF( .NOT. neutral .AND. ( init_3d%lod_pt == 1 .OR. init_3d%lod_pt == 2 ) ) &
[3051]	743	pt(:,j,i) = pt_init(:)
[4648]	744	IF( humidity .AND. ( init_3d%lod_q == 1 .OR. init_3d%lod_q == 2 ) ) &
[4130]	745	q(:,j,i) = q_init(:)
[2696]	746	ENDDO
	747	ENDDO
	748	!
[4648]	749	!-- Set geostrophic wind components.
[2938]	750	IF ( init_3d%from_file_ug ) THEN
	751	ug(:) = init_3d%ug_init(:)
	752	ENDIF
	753	IF ( init_3d%from_file_vg ) THEN
	754	vg(:) = init_3d%vg_init(:)
	755	ENDIF
[3404]	756	!
	757	!-- Set bottom and top boundary condition for geostrophic wind
[2938]	758	ug(nzt+1) = ug(nzt)
	759	vg(nzt+1) = vg(nzt)
[3404]	760	ug(nzb) = ug(nzb+1)
	761	vg(nzb) = vg(nzb+1)
[2696]	762	!
	763	!-- Set inital w to 0
	764	w = 0.0_wp
	765
	766	IF ( passive_scalar ) THEN
	767	DO i = nxlg, nxrg
	768	DO j = nysg, nyng
	769	s(:,j,i) = s_init
	770	ENDDO
	771	ENDDO
	772	ENDIF
	773
	774	!
[4648]	775	!-- Set velocity components at non-atmospheric / oceanic grid points to zero.
[4346]	776	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
	777	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
	778	w = MERGE( w, 0.0_wp, BTEST( wall_flags_total_0, 3 ) )
[2700]	779	!
[4648]	780	!-- Initialize surface variables, e.g. friction velocity, momentum fluxes, etc.
	781	CALL init_surfaces
[2696]	782
[4648]	783	IF ( debug_output ) CALL debug_message( 'initializing with INIFOR', 'end' )
[2696]	784	!
	785	!-- Initialization via computed 1D-model profiles
	786	ELSEIF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
	787
[4648]	788	IF ( debug_output ) CALL debug_message( 'initializing with 1D model profiles', 'start' )
[1]	789	!
	790	!-- Use solutions of the 1D model as initial profiles,
	791	!-- start 1D model
	792	CALL init_1d_model
	793	!
	794	!-- Transfer initial profiles to the arrays of the 3D model
[667]	795	DO i = nxlg, nxrg
	796	DO j = nysg, nyng
[1]	797	pt(:,j,i) = pt_init
	798	u(:,j,i) = u1d
	799	v(:,j,i) = v1d
	800	ENDDO
	801	ENDDO
	802
[1960]	803	IF ( humidity ) THEN
[667]	804	DO i = nxlg, nxrg
	805	DO j = nysg, nyng
[1]	806	q(:,j,i) = q_init
	807	ENDDO
	808	ENDDO
	809	ENDIF
[2292]	810
[1960]	811	IF ( passive_scalar ) THEN
	812	DO i = nxlg, nxrg
	813	DO j = nysg, nyng
	814	s(:,j,i) = s_init
	815	ENDDO
[4648]	816	ENDDO
[1960]	817	ENDIF
[1]	818	!
	819	!-- Store initial profiles for output purposes etc.
[2696]	820	IF ( .NOT. constant_diffusion ) THEN
[1]	821	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	822	ENDIF
	823	!
[2696]	824	!-- Set velocities back to zero
[4346]	825	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
[4648]	826	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
[1]	827	!
[4648]	828	!-- WARNING: The extra boundary conditions set after running the 1D model impose an error on
	829	!-- -------- the divergence one layer below the topography; need to correct later
	830	!-- ATTENTION: Provisional correction for Piacsek & Williams advection scheme: keep u and v
	831	!-- ---------- zero one layer below the topography.
[2696]	832	IF ( ibc_uv_b == 1 ) THEN
[667]	833	!
[2696]	834	!-- Neumann condition
	835	DO i = nxl-1, nxr+1
	836	DO j = nys-1, nyn+1
	837	u(nzb,j,i) = u(nzb+1,j,i)
	838	v(nzb,j,i) = v(nzb+1,j,i)
[1]	839	ENDDO
[2696]	840	ENDDO
[1]	841
	842	ENDIF
[2618]	843	!
[4648]	844	!-- Initialize surface variables, e.g. friction velocity, momentum fluxes, etc.
[2618]	845	CALL init_surfaces
[1]	846
[4648]	847	IF ( debug_output ) CALL debug_message( 'initializing with 1D model profiles', 'end' )
[1384]	848
[4648]	849	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) THEN
[1241]	850
[4648]	851	IF ( debug_output ) CALL debug_message( 'initializing with constant profiles', 'start' )
[2259]	852
	853	!
[4648]	854	!-- Use constructed initial profiles (velocity constant with height, temperature profile with
	855	!-- constant gradient)
[667]	856	DO i = nxlg, nxrg
	857	DO j = nysg, nyng
[1]	858	pt(:,j,i) = pt_init
	859	u(:,j,i) = u_init
	860	v(:,j,i) = v_init
	861	ENDDO
	862	ENDDO
	863	!
[2758]	864	!-- Mask topography
[4346]	865	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
	866	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
[2758]	867	!
[4648]	868	!-- Set initial horizontal velocities at the lowest computational grid levels to zero in order
	869	!-- to avoid too small time steps caused by the diffusion limit in the initial phase of a run
	870	!-- (at k=1, dz/2 occurs in the limiting formula!).
	871	!-- Please note, in case land- or urban-surface model is used and a spinup is applied, masking
	872	!-- the lowest computational level is not possible as MOST as well as energy-balance
	873	!-- parametrizations will not work with zero wind velocity.
	874	IF ( ibc_uv_b /= 1 .AND. .NOT. spinup ) THEN
[1815]	875	DO i = nxlg, nxrg
	876	DO j = nysg, nyng
[2232]	877	DO k = nzb, nzt
[4648]	878	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 20 ) )
	879	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 21 ) )
[2232]	880	ENDDO
[1815]	881	ENDDO
	882	ENDDO
	883	ENDIF
[1]	884
[1960]	885	IF ( humidity ) THEN
[667]	886	DO i = nxlg, nxrg
	887	DO j = nysg, nyng
[1]	888	q(:,j,i) = q_init
	889	ENDDO
	890	ENDDO
	891	ENDIF
[4648]	892
[1960]	893	IF ( passive_scalar ) THEN
	894	DO i = nxlg, nxrg
	895	DO j = nysg, nyng
	896	s(:,j,i) = s_init
	897	ENDDO
	898	ENDDO
	899	ENDIF
[1]	900
[1920]	901	!
[4648]	902	!-- Compute initial temperature field and other constants used in case of a sloping surface.
[1]	903	IF ( sloping_surface ) CALL init_slope
[2618]	904	!
[4648]	905	!-- Initialize surface variables, e.g. friction velocity, momentum fluxes, etc.
[2618]	906	CALL init_surfaces
[4648]	907
[3987]	908	IF ( debug_output ) CALL debug_message( 'initializing with constant profiles', 'end' )
[1384]	909
[4648]	910	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) THEN
[1384]	911
[3987]	912	IF ( debug_output ) CALL debug_message( 'initializing by user', 'start' )
[46]	913	!
[4648]	914	!-- Pre-initialize surface variables, i.e. setting start- and end-indices at each
	915	!-- (j,i)-location. Please note, this does not supersede user-defined initialization of
	916	!-- surface quantities.
[2618]	917	CALL init_surfaces
	918	!
[46]	919	!-- Initialization will completely be done by the user
	920	CALL user_init_3d_model
	921
[3987]	922	IF ( debug_output ) CALL debug_message( 'initializing by user', 'end' )
[1384]	923
[1]	924	ENDIF
[1384]	925
[4648]	926	IF ( debug_output ) THEN
	927	CALL debug_message( 'initializing statistics, boundary conditions, etc.', 'start' )
	928	ENDIF
[1384]	929
[667]	930	!
	931	!-- Bottom boundary
[4648]	932	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
[1340]	933	u(nzb,:,:) = 0.0_wp
	934	v(nzb,:,:) = 0.0_wp
[667]	935	ENDIF
[1]	936
	937	!
[151]	938	!-- Apply channel flow boundary condition
[132]	939	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
[1340]	940	u(nzt+1,:,:) = 0.0_wp
	941	v(nzt+1,:,:) = 0.0_wp
[132]	942	ENDIF
	943
	944	!
[1]	945	!-- Calculate virtual potential temperature
[1960]	946	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
[1]	947
	948	!
[4648]	949	!-- Store initial profiles for output purposes etc.. Please note, in case of initialization of u,
	950	!-- v, w, pt, and q via output data derived from larger scale models, data will not be
	951	!-- horizontally homogeneous. Actually, a mean profile should be calculated before.
[1]	952	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	953	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
[667]	954	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
[1340]	955	hom(nzb,1,5,:) = 0.0_wp
	956	hom(nzb,1,6,:) = 0.0_wp
[1]	957	ENDIF
	958	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	959
[75]	960	IF ( humidity ) THEN
[1]	961	!
[4648]	962	!-- Store initial profile of total water content, virtual potential temperature
[1]	963	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	964	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
[2696]	965	!
[4648]	966	!-- Store initial profile of mixing ratio and potential temperature
[3274]	967	IF ( bulk_cloud_model .OR. cloud_droplets ) THEN
[1]	968	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	969	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	970	ENDIF
	971	ENDIF
	972
[2696]	973	!
	974	!-- Store initial scalar profile
[1]	975	IF ( passive_scalar ) THEN
[2513]	976	hom(:,1,121,:) = SPREAD( s(:,nys,nxl), 2, statistic_regions+1 )
[1]	977	ENDIF
	978
	979	!
[1400]	980	!-- Initialize the random number generators (from numerical recipes)
	981	CALL random_function_ini
[4648]	982
[1400]	983	IF ( random_generator == 'random-parallel' ) THEN
[3241]	984	CALL init_parallel_random_generator( nx, nys, nyn, nxl, nxr )
[1400]	985	ENDIF
	986	!
[4648]	987	!-- Set the reference state to be used in the buoyancy terms (for ocean runs the reference state
	988	!-- will be set (overwritten) in init_ocean).
[1179]	989	IF ( use_single_reference_value ) THEN
[4648]	990	IF ( .NOT. humidity ) THEN
[1179]	991	ref_state(:) = pt_reference
	992	ELSE
	993	ref_state(:) = vpt_reference
	994	ENDIF
	995	ELSE
[4648]	996	IF ( .NOT. humidity ) THEN
[1179]	997	ref_state(:) = pt_init(:)
	998	ELSE
	999	ref_state(:) = vpt(:,nys,nxl)
	1000	ENDIF
	1001	ENDIF
[152]	1002
	1003	!
[707]	1004	!-- For the moment, vertical velocity is zero
[1340]	1005	w = 0.0_wp
[1]	1006
	1007	!
	1008	!-- Initialize array sums (must be defined in first call of pres)
[1340]	1009	sums = 0.0_wp
[1]	1010
	1011	!
[707]	1012	!-- In case of iterative solvers, p must get an initial value
[1575]	1013	IF ( psolver(1:9) == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
[707]	1014	!
[1]	1015	!-- Impose vortex with vertical axis on the initial velocity profile
	1016	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	1017	CALL init_rankine
	1018	ENDIF
	1019
	1020	!
[4648]	1021	!-- Impose temperature anomaly (advection test only) or warm air bubble close to surface.
	1022	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 .OR. &
[3035]	1023	INDEX( initializing_actions, 'initialize_bubble' ) /= 0 ) THEN
[1]	1024	CALL init_pt_anomaly
	1025	ENDIF
[4648]	1026
[1]	1027	!
	1028	!-- If required, change the surface temperature at the start of the 3D run
[1340]	1029	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
[1]	1030	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	1031	ENDIF
	1032
	1033	!
	1034	!-- If required, change the surface humidity/scalar at the start of the 3D
	1035	!-- run
[4648]	1036	IF ( humidity .AND. q_surface_initial_change /= 0.0_wp ) &
[1]	1037	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
[4648]	1038
	1039	IF ( passive_scalar .AND. s_surface_initial_change /= 0.0_wp ) &
[1960]	1040	s(nzb,:,:) = s(nzb,:,:) + s_surface_initial_change
[1]	1041
[4648]	1042
[1]	1043	!
	1044	!-- Initialize old and new time levels.
[2696]	1045	tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
	1046	pt_p = pt; u_p = u; v_p = v; w_p = w
[1]	1047
[1960]	1048	IF ( humidity ) THEN
[1340]	1049	tq_m = 0.0_wp
[1]	1050	q_p = q
	1051	ENDIF
[4648]	1052
[1960]	1053	IF ( passive_scalar ) THEN
	1054	ts_m = 0.0_wp
	1055	s_p = s
[4648]	1056	ENDIF
[1]	1057
[4648]	1058	IF ( debug_output ) THEN
	1059	CALL debug_message( 'initializing statistics, boundary conditions, etc.', 'end' )
	1060	ENDIF
[94]	1061
[1788]	1062	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
[2232]	1063	TRIM( initializing_actions ) == 'cyclic_fill' ) &
[1]	1064	THEN
[1384]	1065
[4648]	1066	IF ( debug_output ) THEN
	1067	CALL debug_message( 'initializing in case of restart / cyclic_fill', 'start' )
	1068	ENDIF
[1]	1069	!
[4648]	1070	!-- Initialize surface elements and its attributes, e.g. heat- and momentumfluxes, roughness,
	1071	!-- scaling parameters. As number of surface elements might be different between runs, e.g. in
	1072	!-- case of cyclic fill, and not all surface elements are read, surface elements need to be
	1073	!-- initialized before.
	1074	!-- Please note, in case of cyclic fill, surfaces should be initialized after restart data is
	1075	!-- read, else, individual settings of surface parameters will be overwritten from data of
	1076	!-- precursor run, hence, init_surfaces is called a second time after reading the restart data.
	1077	CALL init_surfaces
[3609]	1078	!
[4648]	1079	!-- When reading data for cyclic fill of 3D prerun data files, read some of the global variables
	1080	!-- from the restart file which are required for initializing the inflow
[328]	1081	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[559]	1082
[759]	1083	DO i = 0, io_blocks-1
	1084	IF ( i == io_group ) THEN
[2894]	1085	CALL rrd_read_parts_of_global
[759]	1086	ENDIF
	1087	#if defined( __parallel )
	1088	CALL MPI_BARRIER( comm2d, ierr )
	1089	#endif
	1090	ENDDO
[328]	1091
[767]	1092	ENDIF
	1093
[151]	1094	!
[2894]	1095	!-- Read processor specific binary data from restart file
[767]	1096	DO i = 0, io_blocks-1
	1097	IF ( i == io_group ) THEN
[2894]	1098	CALL rrd_local
[767]	1099	ENDIF
	1100	#if defined( __parallel )
	1101	CALL MPI_BARRIER( comm2d, ierr )
	1102	#endif
	1103	ENDDO
[4648]	1104
	1105
[4365]	1106	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1107
[3608]	1108	!
[4648]	1109	!-- In case of cyclic fill, call init_surfaces a second time, so that surface properties such
	1110	!-- as heat fluxes are initialized as prescribed.
[3609]	1111	CALL init_surfaces
[767]	1112
[328]	1113	!
[4648]	1114	!-- Overwrite u_init, v_init, pt_init, q_init and s_init with the horizontally mean (hom)
	1115	!-- vertical profiles from the end of the prerun, because these profiles shall be used as the
	1116	!-- reference state for the rayleigh damping and the pt_damping. This is especially important
	1117	!-- for the use of large_scale_subsidence, because the reference temperature in the free
	1118	!-- atmosphere changes in time.
[4365]	1119	u_init(:) = hom_sum(:,1,0)
	1120	v_init(:) = hom_sum(:,2,0)
	1121	pt_init(:) = hom_sum(:,4,0)
[4648]	1122	IF ( humidity ) q_init(:) = hom_sum(:,41,0)
	1123	IF ( passive_scalar ) s_init(:) = hom_sum(:,115,0)
[4365]	1124	ENDIF
	1125	!
[4648]	1126	!-- In case of complex terrain and cyclic fill method as initialization, shift initial data in
	1127	!-- the vertical direction for each point in the x-y-plane depending on local surface height.
	1128	IF ( complex_terrain .AND. TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[2550]	1129	DO i = nxlg, nxrg
	1130	DO j = nysg, nyng
[4168]	1131	nz_u_shift = topo_top_ind(j,i,1)
	1132	nz_v_shift = topo_top_ind(j,i,2)
	1133	nz_w_shift = topo_top_ind(j,i,3)
	1134	nz_s_shift = topo_top_ind(j,i,0)
[2550]	1135
[4648]	1136	u(nz_u_shift:nzt+1,j,i) = u(0:nzt+1-nz_u_shift,j,i)
[2550]	1137
	1138	v(nz_v_shift:nzt+1,j,i) = v(0:nzt+1-nz_v_shift,j,i)
	1139
	1140	w(nz_w_shift:nzt+1,j,i) = w(0:nzt+1-nz_w_shift,j,i)
	1141
	1142	p(nz_s_shift:nzt+1,j,i) = p(0:nzt+1-nz_s_shift,j,i)
	1143	pt(nz_s_shift:nzt+1,j,i) = pt(0:nzt+1-nz_s_shift,j,i)
	1144	ENDDO
	1145	ENDDO
	1146	ENDIF
	1147	!
[767]	1148	!-- Initialization of the turbulence recycling method
[4648]	1149	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. turbulent_inflow ) THEN
[767]	1150	!
	1151	!-- First store the profiles to be used at the inflow.
[4648]	1152	!-- These profiles are the (temporally) and horizontally averaged vertical profiles from the
	1153	!-- prerun. Alternatively, prescribed profiles for u,v-components can be used.
[3288]	1154	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,1:num_mean_inflow_profiles) )
[151]	1155
[767]	1156	IF ( use_prescribed_profile_data ) THEN
	1157	mean_inflow_profiles(:,1) = u_init ! u
	1158	mean_inflow_profiles(:,2) = v_init ! v
	1159	ELSE
[328]	1160	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
	1161	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
[767]	1162	ENDIF
	1163	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
[4648]	1164	IF ( humidity ) mean_inflow_profiles(:,6) = hom_sum(:,41,0) ! q
	1165	IF ( passive_scalar ) mean_inflow_profiles(:,7) = hom_sum(:,115,0) ! s
[4365]	1166
[2550]	1167	!
[4648]	1168	!-- In case of complex terrain, determine vertical displacement at inflow boundary and adjust
	1169	!-- mean inflow profiles
[2550]	1170	IF ( complex_terrain ) THEN
[4648]	1171	IF ( nxlg <= 0 .AND. nxrg >= 0 .AND. nysg <= 0 .AND. nyng >= 0 ) THEN
[4168]	1172	nz_u_shift_l = topo_top_ind(j,i,1)
	1173	nz_v_shift_l = topo_top_ind(j,i,2)
	1174	nz_w_shift_l = topo_top_ind(j,i,3)
	1175	nz_s_shift_l = topo_top_ind(j,i,0)
[2550]	1176	ELSE
	1177	nz_u_shift_l = 0
	1178	nz_v_shift_l = 0
	1179	nz_w_shift_l = 0
	1180	nz_s_shift_l = 0
	1181	ENDIF
[151]	1182
[2550]	1183	#if defined( __parallel )
[4648]	1184	CALL MPI_ALLREDUCE( nz_u_shift_l, nz_u_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
	1185	CALL MPI_ALLREDUCE( nz_v_shift_l, nz_v_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
	1186	CALL MPI_ALLREDUCE( nz_w_shift_l, nz_w_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
	1187	CALL MPI_ALLREDUCE( nz_s_shift_l, nz_s_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
[2550]	1188	#else
	1189	nz_u_shift = nz_u_shift_l
	1190	nz_v_shift = nz_v_shift_l
	1191	nz_w_shift = nz_w_shift_l
	1192	nz_s_shift = nz_s_shift_l
	1193	#endif
	1194
	1195	mean_inflow_profiles(:,1) = 0.0_wp
	1196	mean_inflow_profiles(nz_u_shift:nzt+1,1) = hom_sum(0:nzt+1-nz_u_shift,1,0) ! u
	1197
	1198	mean_inflow_profiles(:,2) = 0.0_wp
	1199	mean_inflow_profiles(nz_v_shift:nzt+1,2) = hom_sum(0:nzt+1-nz_v_shift,2,0) ! v
	1200
	1201	mean_inflow_profiles(nz_s_shift:nzt+1,4) = hom_sum(0:nzt+1-nz_s_shift,4,0) ! pt
	1202
	1203	ENDIF
	1204
[151]	1205	!
[4648]	1206	!-- If necessary, adjust the horizontal flow field to the prescribed profiles
[767]	1207	IF ( use_prescribed_profile_data ) THEN
	1208	DO i = nxlg, nxrg
[667]	1209	DO j = nysg, nyng
[328]	1210	DO k = nzb, nzt+1
[767]	1211	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
	1212	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
[328]	1213	ENDDO
[151]	1214	ENDDO
[767]	1215	ENDDO
	1216	ENDIF
[151]	1217
	1218	!
[4648]	1219	!-- Use these mean profiles at the inflow (provided that Dirichlet conditions are used)
[3182]	1220	IF ( bc_dirichlet_l ) THEN
[767]	1221	DO j = nysg, nyng
	1222	DO k = nzb, nzt+1
	1223	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
	1224	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
[1340]	1225	w(k,j,nxlg:-1) = 0.0_wp
[767]	1226	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
[4648]	1227	IF ( humidity ) q(k,j,nxlg:-1) = mean_inflow_profiles(k,6)
	1228	IF ( passive_scalar ) s(k,j,nxlg:-1) = mean_inflow_profiles(k,7)
[767]	1229	ENDDO
	1230	ENDDO
	1231	ENDIF
	1232
[151]	1233	!
[4648]	1234	!-- Calculate the damping factors to be used at the inflow. For a turbulent inflow the
	1235	!-- turbulent fluctuations have to be limited vertically because otherwise the turbulent
	1236	!-- inflow layer will grow in time.
[1340]	1237	IF ( inflow_damping_height == 9999999.9_wp ) THEN
[767]	1238	!
[4648]	1239	!-- Default: use the inversion height calculated by the prerun; if this is zero,
	1240	!-- inflow_damping_height must be explicitly specified.
[1340]	1241	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
[767]	1242	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
	1243	ELSE
[4648]	1244	WRITE( message_string, * ) 'inflow_damping_height must be ', &
	1245	'explicitly specified because&the inversion height ', &
	1246	'calculated by the prerun is zero.'
[767]	1247	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
[292]	1248	ENDIF
[151]	1249
[767]	1250	ENDIF
	1251
[1340]	1252	IF ( inflow_damping_width == 9999999.9_wp ) THEN
[151]	1253	!
[4648]	1254	!-- Default for the transition range: one tenth of the undamped layer
[1340]	1255	inflow_damping_width = 0.1_wp * inflow_damping_height
[151]	1256
[767]	1257	ENDIF
[151]	1258
[767]	1259	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
[151]	1260
[767]	1261	DO k = nzb, nzt+1
[151]	1262
[767]	1263	IF ( zu(k) <= inflow_damping_height ) THEN
[1340]	1264	inflow_damping_factor(k) = 1.0_wp
[996]	1265	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
[4648]	1266	inflow_damping_factor(k) = 1.0_wp - &
	1267	( zu(k) - inflow_damping_height ) / inflow_damping_width
[767]	1268	ELSE
[1340]	1269	inflow_damping_factor(k) = 0.0_wp
[767]	1270	ENDIF
[151]	1271
[767]	1272	ENDDO
[151]	1273
[147]	1274	ENDIF
	1275
[152]	1276	!
[2696]	1277	!-- Inside buildings set velocities back to zero
[4648]	1278	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. topography /= 'flat' ) THEN
[359]	1279	!
[2696]	1280	!-- Inside buildings set velocities back to zero.
	1281	!-- Other scalars (pt, q, s, p, sa, ...) are ignored at present,
[359]	1282	!-- maybe revise later.
[1001]	1283	DO i = nxlg, nxrg
	1284	DO j = nysg, nyng
[2232]	1285	DO k = nzb, nzt
[4648]	1286	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 1 ) )
	1287	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 2 ) )
	1288	w(k,j,i) = MERGE( w(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 3 ) )
[2232]	1289	ENDDO
[359]	1290	ENDDO
[1001]	1291	ENDDO
[359]	1292
	1293	ENDIF
	1294
	1295	!
[4648]	1296	!-- Calculate initial temperature field and other constants used in case of a sloping surface
[1]	1297	IF ( sloping_surface ) CALL init_slope
	1298
	1299	!
[4648]	1300	!-- Initialize new time levels (only done in order to set boundary values including ghost points)
[2696]	1301	pt_p = pt; u_p = u; v_p = v; w_p = w
[1960]	1302	IF ( humidity ) THEN
[1053]	1303	q_p = q
	1304	ENDIF
[1960]	1305	IF ( passive_scalar ) s_p = s
[181]	1306	!
[4648]	1307	!-- Allthough tendency arrays are set in prognostic_equations, they have have to be predefined
	1308	!-- here because they are used (but multiplied with 0) there before they are set.
[2696]	1309	tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
[1960]	1310	IF ( humidity ) THEN
[1340]	1311	tq_m = 0.0_wp
[1053]	1312	ENDIF
[1960]	1313	IF ( passive_scalar ) ts_m = 0.0_wp
[181]	1314
[4648]	1315	IF ( debug_output ) THEN
	1316	CALL debug_message( 'initializing in case of restart / cyclic_fill', 'end' )
	1317	ENDIF
[1384]	1318
[1]	1319	ELSE
	1320	!
	1321	!-- Actually this part of the programm should not be reached
[254]	1322	message_string = 'unknown initializing problem'
	1323	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
[1]	1324	ENDIF
	1325
[151]	1326
	1327	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
[1]	1328	!
[151]	1329	!-- Initialize old timelevels needed for radiation boundary conditions
[3182]	1330	IF ( bc_radiation_l ) THEN
[151]	1331	u_m_l(:,:,:) = u(:,:,1:2)
	1332	v_m_l(:,:,:) = v(:,:,0:1)
	1333	w_m_l(:,:,:) = w(:,:,0:1)
	1334	ENDIF
[3182]	1335	IF ( bc_radiation_r ) THEN
[151]	1336	u_m_r(:,:,:) = u(:,:,nx-1:nx)
	1337	v_m_r(:,:,:) = v(:,:,nx-1:nx)
	1338	w_m_r(:,:,:) = w(:,:,nx-1:nx)
	1339	ENDIF
[3182]	1340	IF ( bc_radiation_s ) THEN
[151]	1341	u_m_s(:,:,:) = u(:,0:1,:)
	1342	v_m_s(:,:,:) = v(:,1:2,:)
	1343	w_m_s(:,:,:) = w(:,0:1,:)
	1344	ENDIF
[3182]	1345	IF ( bc_radiation_n ) THEN
[151]	1346	u_m_n(:,:,:) = u(:,ny-1:ny,:)
	1347	v_m_n(:,:,:) = v(:,ny-1:ny,:)
	1348	w_m_n(:,:,:) = w(:,ny-1:ny,:)
	1349	ENDIF
[4648]	1350
[151]	1351	ENDIF
[680]	1352
[667]	1353	!
	1354	!-- Calculate the initial volume flow at the right and north boundary
[709]	1355	IF ( conserve_volume_flow ) THEN
[151]	1356
[767]	1357	IF ( use_prescribed_profile_data ) THEN
[667]	1358
[1340]	1359	volume_flow_initial_l = 0.0_wp
	1360	volume_flow_area_l = 0.0_wp
[732]	1361
[667]	1362	IF ( nxr == nx ) THEN
	1363	DO j = nys, nyn
[2232]	1364	DO k = nzb+1, nzt
[4648]	1365	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1366	u_init(k) * dzw(k) &
	1367	* MERGE( 1.0_wp, 0.0_wp, &
	1368	BTEST( wall_flags_total_0(k,j,nxr), 1 ) &
	1369	)
[2232]	1370
[4648]	1371	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1372	* MERGE( 1.0_wp, 0.0_wp, &
	1373	BTEST( wall_flags_total_0(k,j,nxr), 1 ) &
	1374	)
[767]	1375	ENDDO
	1376	ENDDO
	1377	ENDIF
[4648]	1378
[767]	1379	IF ( nyn == ny ) THEN
	1380	DO i = nxl, nxr
[2232]	1381	DO k = nzb+1, nzt
[4648]	1382	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1383	v_init(k) * dzw(k) &
	1384	* MERGE( 1.0_wp, 0.0_wp, &
	1385	BTEST( wall_flags_total_0(k,nyn,i), 2 ) &
	1386	)
	1387	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1388	* MERGE( 1.0_wp, 0.0_wp, &
	1389	BTEST( wall_flags_total_0(k,nyn,i), 2 ) &
	1390	)
[767]	1391	ENDDO
	1392	ENDDO
	1393	ENDIF
	1394
	1395	#if defined( __parallel )
[4648]	1396	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1), 2, MPI_REAL, &
	1397	MPI_SUM, comm2d, ierr )
	1398	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), 2, MPI_REAL, MPI_SUM, &
	1399	comm2d, ierr )
[767]	1400
	1401	#else
	1402	volume_flow_initial = volume_flow_initial_l
	1403	volume_flow_area = volume_flow_area_l
[4648]	1404	#endif
[767]	1405
	1406	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1407
[1340]	1408	volume_flow_initial_l = 0.0_wp
	1409	volume_flow_area_l = 0.0_wp
[767]	1410
	1411	IF ( nxr == nx ) THEN
	1412	DO j = nys, nyn
[2232]	1413	DO k = nzb+1, nzt
[4648]	1414	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1415	hom_sum(k,1,0) * dzw(k) &
	1416	* MERGE( 1.0_wp, 0.0_wp, &
	1417	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1418	)
	1419	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1420	* MERGE( 1.0_wp, 0.0_wp, &
	1421	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1422	)
[667]	1423	ENDDO
	1424	ENDDO
	1425	ENDIF
[4648]	1426
[667]	1427	IF ( nyn == ny ) THEN
	1428	DO i = nxl, nxr
[2232]	1429	DO k = nzb+1, nzt
[4648]	1430	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1431	hom_sum(k,2,0) * dzw(k) &
	1432	* MERGE( 1.0_wp, 0.0_wp, &
	1433	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1434	)
	1435	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1436	* MERGE( 1.0_wp, 0.0_wp, &
	1437	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1438	)
[667]	1439	ENDDO
	1440	ENDDO
	1441	ENDIF
	1442
[732]	1443	#if defined( __parallel )
[4648]	1444	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1), 2, MPI_REAL, &
	1445	MPI_SUM, comm2d, ierr )
	1446	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), 2, MPI_REAL, MPI_SUM, &
	1447	comm2d, ierr )
[732]	1448
	1449	#else
	1450	volume_flow_initial = volume_flow_initial_l
	1451	volume_flow_area = volume_flow_area_l
[4648]	1452	#endif
[732]	1453
[667]	1454	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	1455
[1340]	1456	volume_flow_initial_l = 0.0_wp
	1457	volume_flow_area_l = 0.0_wp
[732]	1458
[667]	1459	IF ( nxr == nx ) THEN
	1460	DO j = nys, nyn
[2232]	1461	DO k = nzb+1, nzt
[4648]	1462	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1463	u(k,j,nx) * dzw(k) &
	1464	* MERGE( 1.0_wp, 0.0_wp, &
	1465	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1466	)
	1467	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1468	* MERGE( 1.0_wp, 0.0_wp, &
	1469	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1470	)
[667]	1471	ENDDO
	1472	ENDDO
	1473	ENDIF
[4648]	1474
[667]	1475	IF ( nyn == ny ) THEN
	1476	DO i = nxl, nxr
[2232]	1477	DO k = nzb+1, nzt
[4648]	1478	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1479	v(k,ny,i) * dzw(k) &
	1480	* MERGE( 1.0_wp, 0.0_wp, &
	1481	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1482	)
	1483	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1484	* MERGE( 1.0_wp, 0.0_wp, &
	1485	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1486	)
[667]	1487	ENDDO
	1488	ENDDO
	1489	ENDIF
	1490
	1491	#if defined( __parallel )
[4648]	1492	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1), 2, MPI_REAL, &
	1493	MPI_SUM, comm2d, ierr )
	1494	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), 2, MPI_REAL, MPI_SUM, &
	1495	comm2d, ierr )
[667]	1496
	1497	#else
[732]	1498	volume_flow_initial = volume_flow_initial_l
	1499	volume_flow_area = volume_flow_area_l
[4648]	1500	#endif
[667]	1501
[732]	1502	ENDIF
	1503
[151]	1504	!
[4648]	1505	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated from u\|v_bulk instead
[680]	1506	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
	1507	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
	1508	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
	1509	ENDIF
[667]	1510
[680]	1511	ENDIF
[2232]	1512	!
[4648]	1513	!-- In the following, surface properties can be further initialized with input from static driver
	1514	!-- file.
	1515	!-- At the moment this affects only default surfaces. For example, roughness length or sensible /
	1516	!-- latent heat fluxes can be initialized heterogeneously for default surfaces. Therefore, a generic
	1517	!-- routine from netcdf_data_input_mod is called to read a 2D array.
[4150]	1518	IF ( input_pids_static ) THEN
	1519	!
[4151]	1520	!-- Allocate memory for possible static input
	1521	ALLOCATE( tmp_2d%var(nys:nyn,nxl:nxr) )
	1522	tmp_2d%var = 0.0_wp
	1523	!
[4150]	1524	!-- Open the static input file
[4151]	1525	#if defined( __netcdf )
[4648]	1526	CALL open_read_file( TRIM( input_file_static ) // &
	1527	TRIM( coupling_char ), pids_id )
	1528
[4186]	1529	CALL inquire_num_variables( pids_id, num_var_pids )
[4150]	1530	!
	1531	!-- Allocate memory to store variable names and read them
[4186]	1532	ALLOCATE( vars_pids(1:num_var_pids) )
	1533	CALL inquire_variable_names( pids_id, vars_pids )
[4150]	1534	!
[4648]	1535	!-- Input roughness length.
[4186]	1536	IF ( check_existence( vars_pids, 'z0' ) ) THEN
[4150]	1537	!
	1538	!-- Read _FillValue attribute
[4648]	1539	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, .FALSE., 'z0' )
	1540	!
	1541	!-- Read variable
	1542	CALL get_variable( pids_id, 'z0', tmp_2d%var, nxl, nxr, nys, nyn )
	1543	!
	1544	!-- Initialize roughness length. Note, z0 will be only initialized at default-type surfaces.
	1545	!-- At natural or urban z0 is implicitly initialized by the respective parameter lists.
	1546	!-- Initialize horizontal surface elements.
	1547	CALL init_single_surface_properties( surf_def_h(0)%z0, tmp_2d%var, surf_def_h(0)%ns, &
	1548	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
	1549	!
	1550	!-- Initialize roughness also at vertical surface elements.
	1551	!-- Note, the actual 2D input arrays are only defined on the subdomain. Therefore, pass the
	1552	!-- index arrays with their respective offset values.
	1553	DO l = 0, 3
	1554	CALL init_single_surface_properties( surf_def_v(l)%z0, tmp_2d%var, surf_def_v(l)%ns, &
	1555	tmp_2d%fill, surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1556	surf_def_v(l)%j+surf_def_v(l)%joff )
[4150]	1557	ENDDO
[4648]	1558
[4150]	1559	ENDIF
	1560	!
[4648]	1561	!-- Input surface sensible heat flux.
[4514]	1562	IF ( check_existence( vars_pids, 'shf' ) ) THEN
	1563	!
	1564	!-- Read _FillValue attribute
[4648]	1565	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, .FALSE., 'shf' )
[4514]	1566	!
	1567	!-- Read variable
[4648]	1568	CALL get_variable( pids_id, 'shf', tmp_2d%var, nxl, nxr, nys, nyn )
[4514]	1569	!
[4648]	1570	!-- Initialize heat flux. Note, shf will be only initialized at default-type surfaces. At
	1571	!-- natural or urban shf is implicitly initialized by the respective parameter lists.
[4514]	1572	!-- Initialize horizontal surface elements.
[4648]	1573	CALL init_single_surface_properties( surf_def_h(0)%shf, tmp_2d%var, surf_def_h(0)%ns, &
	1574	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
[4514]	1575	!
	1576	!-- Initialize heat flux also at vertical surface elements.
[4648]	1577	!-- Note, the actual 2D input arrays are only defined on the subdomain. Therefore, pass the
	1578	!-- index arrays with their respective offset values.
[4514]	1579	DO l = 0, 3
[4648]	1580	CALL init_single_surface_properties( surf_def_v(l)%shf, tmp_2d%var, surf_def_v(l)%ns, &
	1581	tmp_2d%fill, surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1582	surf_def_v(l)%j+surf_def_v(l)%joff )
[4514]	1583	ENDDO
	1584
	1585	ENDIF
	1586	!
[4648]	1587	!-- Input surface sensible heat flux.
[4514]	1588	IF ( check_existence( vars_pids, 'qsws' ) ) THEN
	1589	!
	1590	!-- Read _FillValue attribute
	1591	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, &
	1592	.FALSE., 'qsws' )
	1593	!
	1594	!-- Read variable
	1595	CALL get_variable( pids_id, 'qsws', tmp_2d%var, &
	1596	nxl, nxr, nys, nyn )
	1597	!
[4648]	1598	!-- Initialize latent heat flux. Note, qsws will be only initialized at default-type surfaces.
	1599	!-- At natural or urban qsws is implicitly initialized by the respective parameter lists.
[4514]	1600	!-- Initialize horizontal surface elements.
[4648]	1601	CALL init_single_surface_properties( surf_def_h(0)%qsws, tmp_2d%var, surf_def_h(0)%ns, &
	1602	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
[4514]	1603	!
	1604	!-- Initialize latent heat flux also at vertical surface elements.
[4648]	1605	!-- Note, the actual 2D input arrays are only defined on the subdomain. Therefore, pass the
	1606	!-- index arrays with their respective offset values.
[4514]	1607	DO l = 0, 3
[4648]	1608	CALL init_single_surface_properties( surf_def_v(l)%qsws, tmp_2d%var, surf_def_v(l)%ns,&
	1609	tmp_2d%fill, surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1610	surf_def_v(l)%j+surf_def_v(l)%joff )
[4514]	1611	ENDDO
	1612
	1613	ENDIF
	1614	!
[4648]	1615	!-- Additional variables, can be initialized the
[4150]	1616	!-- same way.
[4514]	1617
[4150]	1618	!
[4187]	1619	!-- Finally, close the input file and deallocate temporary arrays
	1620	DEALLOCATE( vars_pids )
[4648]	1621
[4186]	1622	CALL close_input_file( pids_id )
[4151]	1623	#endif
	1624	DEALLOCATE( tmp_2d%var )
[4150]	1625	ENDIF
	1626	!
[4648]	1627	!-- Finally, if random_heatflux is set, disturb shf at horizontal surfaces. Actually, this should be
	1628	!-- done in surface_mod, where all other initializations of surface quantities are done. However,
	1629	!-- this would create a ring dependency, hence, it is done here. Maybe delete disturb_heatflux and
	1630	!-- tranfer the respective code directly into the initialization in surface_mod.
	1631	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[2232]	1632	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[4648]	1633
	1634	IF ( use_surface_fluxes .AND. constant_heatflux .AND. random_heatflux ) THEN
[2232]	1635	IF ( surf_def_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_def_h(0) )
[4671]	1636	IF ( surf_lsm_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_lsm_h(0) )
	1637	IF ( surf_usm_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_usm_h(0) )
[2232]	1638	ENDIF
	1639	ENDIF
[680]	1640
[787]	1641	!
[4648]	1642	!-- Compute total sum of grid points and the mean surface level height for each statistic region.
	1643	!-- These are mainly used for horizontal averaging of turbulence statistics.
	1644	!-- ngp_2dh: number of grid points of a horizontal cross section through the respective statistic
	1645	!-- region
[3747]	1646	!-- ngp_3d: number of grid points of the respective statistic region
[2696]	1647	ngp_2dh_outer_l = 0
	1648	ngp_2dh_outer = 0
	1649	ngp_2dh_s_inner_l = 0
	1650	ngp_2dh_s_inner = 0
	1651	ngp_2dh_l = 0
	1652	ngp_2dh = 0
	1653	ngp_3d_inner_l = 0.0_wp
	1654	ngp_3d_inner = 0
	1655	ngp_3d = 0
	1656	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
	1657
	1658	mean_surface_level_height = 0.0_wp
	1659	mean_surface_level_height_l = 0.0_wp
	1660	!
	1661	!-- To do: New concept for these non-topography grid points!
	1662	DO sr = 0, statistic_regions
	1663	DO i = nxl, nxr
	1664	DO j = nys, nyn
	1665	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
	1666	!
	1667	!-- All xy-grid points
	1668	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1669	!
[4648]	1670	!-- Determine mean surface-level height. In case of downward-facing walls are present,
	1671	!-- more than one surface level exist.
	1672	!-- In this case, use the lowest surface-level height.
	1673	IF ( surf_def_h(0)%start_index(j,i) <= surf_def_h(0)%end_index(j,i) ) THEN
[2696]	1674	m = surf_def_h(0)%start_index(j,i)
	1675	k = surf_def_h(0)%k(m)
[4648]	1676	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) + zw(k-1)
[2696]	1677	ENDIF
[4671]	1678	IF ( surf_lsm_h(0)%start_index(j,i) <= surf_lsm_h(0)%end_index(j,i) ) THEN
	1679	m = surf_lsm_h(0)%start_index(j,i)
	1680	k = surf_lsm_h(0)%k(m)
[4648]	1681	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) + zw(k-1)
[2696]	1682	ENDIF
[4671]	1683	IF ( surf_usm_h(0)%start_index(j,i) <= surf_usm_h(0)%end_index(j,i) ) THEN
	1684	m = surf_usm_h(0)%start_index(j,i)
	1685	k = surf_usm_h(0)%k(m)
[4648]	1686	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) + zw(k-1)
[2696]	1687	ENDIF
	1688
	1689	k_surf = k - 1
	1690
	1691	DO k = nzb, nzt+1
	1692	!
	1693	!-- xy-grid points above topography
[4648]	1694	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + &
	1695	MERGE( 1, 0, BTEST( wall_flags_total_0(k,j,i), 24 ) )
[2696]	1696
[4648]	1697	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + &
	1698	MERGE( 1, 0, BTEST( wall_flags_total_0(k,j,i), 22 ) )
[2696]	1699
	1700	ENDDO
	1701	!
	1702	!-- All grid points of the total domain above topography
	1703	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + ( nz - k_surf + 2 )
	1704
	1705
	1706
	1707	ENDIF
	1708	ENDDO
	1709	ENDDO
	1710	ENDDO
[3747]	1711
[2696]	1712	sr = statistic_regions + 1
	1713	#if defined( __parallel )
	1714	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1715	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
	1716	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1717	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, MPI_INTEGER, MPI_SUM, &
[2696]	1718	comm2d, ierr )
	1719	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1720	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), (nz+2)*sr, MPI_INTEGER, &
	1721	MPI_SUM, comm2d, ierr )
[2696]	1722	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1723	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, MPI_SUM, comm2d, &
	1724	ierr )
[2696]	1725	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
	1726	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1727	CALL MPI_ALLREDUCE( mean_surface_level_height_l(0), mean_surface_level_height(0), sr, MPI_REAL,&
[2696]	1728	MPI_SUM, comm2d, ierr )
	1729	mean_surface_level_height = mean_surface_level_height / REAL( ngp_2dh )
	1730	#else
	1731	ngp_2dh = ngp_2dh_l
	1732	ngp_2dh_outer = ngp_2dh_outer_l
	1733	ngp_2dh_s_inner = ngp_2dh_s_inner_l
	1734	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
	1735	mean_surface_level_height = mean_surface_level_height_l / REAL( ngp_2dh_l )
	1736	#endif
	1737
[4648]	1738	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
[2696]	1739	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
	1740
	1741	!
[4648]	1742	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics, buoyancy, etc. A
	1743	!-- zero value will occur for cases where all grid points of the respective subdomain lie below the
	1744	!-- surface topography
	1745	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
	1746	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), ngp_3d_inner(:) )
	1747	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
[2696]	1748
[4648]	1749	DEALLOCATE( mean_surface_level_height_l, ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, &
	1750	ngp_3d_inner_tmp )
[4548]	1751
[2696]	1752	!
[4648]	1753	!-- Initializae 3D offline nesting in COSMO model and read data from
[3347]	1754	!-- external NetCDF file.
	1755	IF ( nesting_offline ) CALL nesting_offl_init
	1756	!
[787]	1757	!-- Initialize quantities for special advections schemes
	1758	CALL init_advec
[680]	1759
[667]	1760	!
[680]	1761	!-- Impose random perturbation on the horizontal velocity field and then
	1762	!-- remove the divergences from the velocity field at the initial stage
[4648]	1763	IF ( create_disturbances .AND. disturbance_energy_limit /= 0.0_wp .AND. &
	1764	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[680]	1765	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
	1766
[4648]	1767	IF ( debug_output ) THEN
	1768	CALL debug_message( 'creating disturbances + applying pressure solver', 'start' )
	1769	ENDIF
[3849]	1770	!
	1771	!-- Needed for both disturb_field and pres
	1772	!$ACC DATA &
	1773	!$ACC CREATE(tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1774	!$ACC COPY(u(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1775	!$ACC COPY(v(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
	1776
[2232]	1777	CALL disturb_field( 'u', tend, u )
	1778	CALL disturb_field( 'v', tend, v )
[1384]	1779
[3849]	1780	!$ACC DATA &
	1781	!$ACC CREATE(d(nzb+1:nzt,nys:nyn,nxl:nxr)) &
	1782	!$ACC COPY(w(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1783	!$ACC COPY(p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1784	!$ACC COPYIN(rho_air(nzb:nzt+1), rho_air_zw(nzb:nzt+1)) &
	1785	!$ACC COPYIN(ddzu(1:nzt+1), ddzw(1:nzt+1)) &
[4346]	1786	!$ACC COPYIN(wall_flags_total_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
[3849]	1787	!$ACC COPYIN(bc_h(0:1)) &
	1788	!$ACC COPYIN(bc_h(0)%i(1:bc_h(0)%ns)) &
	1789	!$ACC COPYIN(bc_h(0)%j(1:bc_h(0)%ns)) &
	1790	!$ACC COPYIN(bc_h(0)%k(1:bc_h(0)%ns)) &
	1791	!$ACC COPYIN(bc_h(1)%i(1:bc_h(1)%ns)) &
	1792	!$ACC COPYIN(bc_h(1)%j(1:bc_h(1)%ns)) &
	1793	!$ACC COPYIN(bc_h(1)%k(1:bc_h(1)%ns))
	1794
[680]	1795	n_sor = nsor_ini
	1796	CALL pres
	1797	n_sor = nsor
[1384]	1798
[3849]	1799	!$ACC END DATA
	1800	!$ACC END DATA
	1801
[4648]	1802	IF ( debug_output ) THEN
	1803	CALL debug_message( 'creating disturbances + applying pressure solver', 'end' )
	1804	ENDIF
[3987]	1805
[680]	1806	ENDIF
	1807
[3294]	1808	IF ( .NOT. ocean_mode ) THEN
[3274]	1809
	1810	ALLOCATE( hyp(nzb:nzt+1) )
	1811	ALLOCATE( d_exner(nzb:nzt+1) )
	1812	ALLOCATE( exner(nzb:nzt+1) )
	1813	ALLOCATE( hyrho(nzb:nzt+1) )
[1849]	1814	!
[3274]	1815	!-- Check temperature in case of too large domain height
	1816	DO k = nzb, nzt+1
[4648]	1817	IF ( ( pt_surface * exner_function( surface_pressure * 100.0_wp ) - g/c_p * zu(k) ) &
	1818	< 0.0_wp ) THEN
	1819	WRITE( message_string, * ) 'absolute temperature < 0.0 at zu(', k, ') = ', zu(k)
[3685]	1820	CALL message( 'init_3d_model', 'PA0142', 1, 2, 0, 6, 0 )
[3274]	1821	ENDIF
	1822	ENDDO
	1823
	1824	!
	1825	!-- Calculate vertical profile of the hydrostatic pressure (hyp)
[4648]	1826	hyp = barometric_formula( zu, pt_surface * exner_function( surface_pressure * 100.0_wp ),&
	1827	surface_pressure * 100.0_wp )
	1828	d_exner = exner_function_invers( hyp )
	1829	exner = 1.0_wp / exner_function_invers( hyp )
	1830	hyrho = ideal_gas_law_rho_pt( hyp, pt_init )
[3274]	1831	!
	1832	!-- Compute reference density
[4648]	1833	rho_surface = ideal_gas_law_rho( surface_pressure * 100.0_wp, &
	1834	pt_surface * exner_function( surface_pressure * 100.0_wp ) )
[3274]	1835
[96]	1836	ENDIF
[1]	1837
	1838	!
	1839	!-- If required, initialize particles
[3159]	1840	IF ( agents_active ) CALL mas_init
	1841	!
[3937]	1842	!-- Initialization of synthetic turbulence generator
	1843	IF ( use_syn_turb_gen ) CALL stg_init
[2696]	1844	!
[3685]	1845	!-- Initializing actions for all other modules
	1846	CALL module_interface_init
[2696]	1847	!
[4648]	1848	!-- Initialize surface layer (done after LSM as roughness length are required for initialization
[3685]	1849	IF ( constant_flux_layer ) CALL init_surface_layer_fluxes
[2977]	1850	!
[3421]	1851	!-- Initialize surface data output
[3685]	1852	IF ( surface_output ) CALL surface_data_output_init
[3472]	1853	!
[4648]	1854	!-- Initialize the ws-scheme.
	1855	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
[3711]	1856	!
	1857	!-- Perform post-initializing checks for all other modules
	1858	CALL module_interface_init_checks
[1]	1859
	1860	!
[4648]	1861	!-- Initialize surface forcing corresponding to large-scale forcing. Therein,
[4548]	1862	!-- initialize heat-fluxes, etc. via datatype. Revise it later!
[4648]	1863	IF ( large_scale_forcing .AND. lsf_surf ) THEN
[4548]	1864	IF ( use_surface_fluxes .AND. constant_heatflux ) THEN
[4648]	1865	CALL ls_forcing_surf( simulated_time )
[4548]	1866	ENDIF
	1867	ENDIF
	1868	!
[4648]	1869	!-- Setting weighting factors for calculation of perturbation pressure and turbulent quantities from
	1870	!-- the RK substeps.
	1871	IF ( TRIM( timestep_scheme ) == 'runge-kutta-3' ) THEN ! for RK3-method
[709]	1872
[1322]	1873	weight_substep(1) = 1._wp/6._wp
	1874	weight_substep(2) = 3._wp/10._wp
	1875	weight_substep(3) = 8._wp/15._wp
[709]	1876
[1322]	1877	weight_pres(1) = 1._wp/3._wp
	1878	weight_pres(2) = 5._wp/12._wp
	1879	weight_pres(3) = 1._wp/4._wp
[709]	1880
[4648]	1881	ELSEIF ( TRIM( timestep_scheme ) == 'runge-kutta-2' ) THEN ! for RK2-method
[709]	1882
[1322]	1883	weight_substep(1) = 1._wp/2._wp
	1884	weight_substep(2) = 1._wp/2._wp
[4648]	1885
[1322]	1886	weight_pres(1) = 1._wp/2._wp
[4648]	1887	weight_pres(2) = 1._wp/2._wp
[709]	1888
[1001]	1889	ELSE ! for Euler-method
[709]	1890
[4648]	1891	weight_substep(1) = 1.0_wp
	1892	weight_pres(1) = 1.0_wp
[709]	1893
[673]	1894	ENDIF
	1895
	1896	!
[1]	1897	!-- Initialize Rayleigh damping factors
[1340]	1898	rdf = 0.0_wp
	1899	rdf_sc = 0.0_wp
	1900	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
[3294]	1901
	1902	IF ( .NOT. ocean_mode ) THEN
[108]	1903	DO k = nzb+1, nzt
	1904	IF ( zu(k) >= rayleigh_damping_height ) THEN
[4648]	1905	rdf(k) = rayleigh_damping_factor * &
	1906	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
	1907	/ ( zu(nzt) - rayleigh_damping_height ) ) &
	1908	)**2
[108]	1909	ENDIF
	1910	ENDDO
	1911	ELSE
[3294]	1912	!
[4648]	1913	!-- In ocean mode, rayleigh damping is applied in the lower part of the model domain
[108]	1914	DO k = nzt, nzb+1, -1
	1915	IF ( zu(k) <= rayleigh_damping_height ) THEN
[4648]	1916	rdf(k) = rayleigh_damping_factor * &
	1917	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
	1918	/ ( rayleigh_damping_height - zu(nzb+1) ) ) &
	1919	)**2
[108]	1920	ENDIF
	1921	ENDDO
	1922	ENDIF
[3294]	1923
[1]	1924	ENDIF
[785]	1925	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
[1]	1926
	1927	!
[4648]	1928	!-- Initialize the starting level and the vertical smoothing factor used for the external pressure
	1929	!-- gradient
[1340]	1930	dp_smooth_factor = 1.0_wp
[240]	1931	IF ( dp_external ) THEN
	1932	!
[4648]	1933	!-- Set the starting level dp_level_ind_b only if it has not been set before (e.g. in init_grid).
[240]	1934	IF ( dp_level_ind_b == 0 ) THEN
	1935	ind_array = MINLOC( ABS( dp_level_b - zu ) )
[4648]	1936	dp_level_ind_b = ind_array(1) - 1 + nzb
[240]	1937	! MINLOC uses lower array bound 1
	1938	ENDIF
	1939	IF ( dp_smooth ) THEN
[1340]	1940	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
[240]	1941	DO k = dp_level_ind_b+1, nzt
[4648]	1942	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
	1943	( REAL( k - dp_level_ind_b, KIND=wp ) / &
	1944	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
[240]	1945	ENDDO
	1946	ENDIF
	1947	ENDIF
	1948
	1949	!
[4648]	1950	!-- Initialize damping zone for the potential temperature in case of non-cyclic lateral boundaries.
	1951	!-- The damping zone has the maximum value at the inflow boundary and decreases to zero at
	1952	!-- pt_damping_width.
[1340]	1953	ptdf_x = 0.0_wp
	1954	ptdf_y = 0.0_wp
[1159]	1955	IF ( bc_lr_dirrad ) THEN
[996]	1956	DO i = nxl, nxr
[978]	1957	IF ( ( i * dx ) < pt_damping_width ) THEN
[4648]	1958	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
	1959	REAL( pt_damping_width - i * dx, KIND=wp ) / &
	1960	REAL( pt_damping_width, KIND=wp ) ) )**2
	1961	ENDIF
[73]	1962	ENDDO
[1159]	1963	ELSEIF ( bc_lr_raddir ) THEN
[996]	1964	DO i = nxl, nxr
[978]	1965	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
[4648]	1966	ptdf_x(i) = pt_damping_factor * SIN( pi * 0.5_wp * &
	1967	( ( i - nx ) * dx + pt_damping_width ) / &
	1968	REAL( pt_damping_width, KIND=wp ) )**2
[73]	1969	ENDIF
[4648]	1970	ENDDO
[1159]	1971	ELSEIF ( bc_ns_dirrad ) THEN
[996]	1972	DO j = nys, nyn
[978]	1973	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
[4648]	1974	ptdf_y(j) = pt_damping_factor * SIN( pi * 0.5_wp * &
	1975	( ( j - ny ) * dy + pt_damping_width ) / &
	1976	REAL( pt_damping_width, KIND=wp ) )**2
[1]	1977	ENDIF
[4648]	1978	ENDDO
[1159]	1979	ELSEIF ( bc_ns_raddir ) THEN
[996]	1980	DO j = nys, nyn
[978]	1981	IF ( ( j * dy ) < pt_damping_width ) THEN
[4648]	1982	ptdf_y(j) = pt_damping_factor * SIN( pi * 0.5_wp * &
	1983	( pt_damping_width - j * dy ) / &
	1984	REAL( pt_damping_width, KIND=wp ) )**2
[1]	1985	ENDIF
[73]	1986	ENDDO
[1]	1987	ENDIF
[51]	1988
[1]	1989	!
[4648]	1990	!-- Input binary data file is not needed anymore. This line must be placed after call of user_init!
[1]	1991	CALL close_file( 13 )
[2934]	1992	!
[4648]	1993	!-- In case of nesting, put an barrier to assure that all parent and child domains finished
	1994	!-- initialization.
[2934]	1995	#if defined( __parallel )
	1996	IF ( nested_run ) CALL MPI_BARRIER( MPI_COMM_WORLD, ierr )
	1997	#endif
[1]	1998
[2934]	1999
[3987]	2000	CALL location_message( 'model initialization', 'finished' )
[1]	2001
	2002	END SUBROUTINE init_3d_model

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