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init_3d_model.f90 @ 4651

Last change on this file since 4651 was 4648, checked in by raasch, 4 years ago

files re-formatted to follow the PALM coding standard

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/palm/branches/chemistry/SOURCE/init_3d_model.f90	2047-3190,3218-3297
/palm/branches/rans/SOURCE/init_3d_model.f90	2078-3128
/palm/branches/resler/SOURCE/init_3d_model.f90	2023-4492
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File size: 84.7 KB

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 4648 2020-08-25 07:52:08Z raasch $
[4648]	26	! file re-formatted to follow the PALM coding standard
	27	!
	28	! 4548 2020-05-28 19:36:45Z suehring
[4548]	29	! Bugfix, move call for lsf_forcing_surf after lsf_init is called
[4648]	30	!
[4548]	31	! 4514 2020-04-30 16:29:59Z suehring
[4648]	32	! Add possibility to initialize surface sensible and latent heat fluxes via a static driver.
	33	!
[4514]	34	! 4493 2020-04-10 09:49:43Z pavelkrc
[4648]	35	! Overwrite u_init, v_init, pt_init, q_init and s_init with hom for all cyclic_fill-cases, not only
	36	! for turbulent_inflow = .TRUE.
	37	!
[4365]	38	! 4360 2020-01-07 11:25:50Z suehring
[4648]	39	! Introduction of wall_flags_total_0, which currently sets bits based on static topography
	40	! information used in wall_flags_static_0
	41	!
[4346]	42	! 4329 2019-12-10 15:46:36Z motisi
[4329]	43	! Renamed wall_flags_0 to wall_flags_static_0
[4648]	44	!
[4329]	45	! 4286 2019-10-30 16:01:14Z resler
[4227]	46	! implement new palm_date_time_mod
[4648]	47	!
[4227]	48	! 4223 2019-09-10 09:20:47Z gronemeier
[4648]	49	! Deallocate temporary string array since it may be re-used to read different input data in other
	50	! modules
	51	!
[4187]	52	! 4186 2019-08-23 16:06:14Z suehring
[4648]	53	! Design change, use variables defined in netcdf_data_input_mod to read netcd variables rather than
	54	! define local ones.
	55	!
[4186]	56	! 4185 2019-08-23 13:49:38Z oliver.maas
[4185]	57	! For initializing_actions = ' cyclic_fill':
[4648]	58	! Overwrite u_init, v_init, pt_init, q_init and s_init with the (temporally) and horizontally
	59	! averaged vertical profiles from the end of the prerun, because these profiles shall be used as the
	60	! basic state for the rayleigh damping and the pt_damping.
	61	!
[4185]	62	! 4182 2019-08-22 15:20:23Z scharf
[4182]	63	! Corrected "Former revisions" section
[4648]	64	!
[4182]	65	! 4168 2019-08-16 13:50:17Z suehring
[4168]	66	! Replace function get_topography_top_index by topo_top_ind
[4648]	67	!
[4168]	68	! 4151 2019-08-09 08:24:30Z suehring
[4151]	69	! Add netcdf directive around input calls (fix for last commit)
[4648]	70	!
[4151]	71	! 4150 2019-08-08 20:00:47Z suehring
[4648]	72	! Input of additional surface variables independent on land- or urban-surface model
	73	!
[4150]	74	! 4131 2019-08-02 11:06:18Z monakurppa
[4131]	75	! Allocate sums and sums_l to allow profile output for salsa variables.
[4648]	76	!
[4131]	77	! 4130 2019-08-01 13:04:13Z suehring
[4648]	78	! Effectively reduce 3D initialization to 1D initial profiles. This is because 3D initialization
	79	! produces structures in the w-component that are correlated with the processor grid for some
	80	! unknown reason
	81	!
[4130]	82	! 4090 2019-07-11 15:06:47Z Giersch
[4090]	83	! Unused variables removed
[4648]	84	!
[4090]	85	! 4088 2019-07-11 13:57:56Z Giersch
[4088]	86	! Pressure and density profile calculations revised using basic functions
[4648]	87	!
[4088]	88	! 4048 2019-06-21 21:00:21Z knoop
[4028]	89	! Further modularization of particle code components
[4648]	90	!
[4028]	91	! 4017 2019-06-06 12:16:46Z schwenkel
[4648]	92	! Convert most location messages to debug messages to reduce output in job logfile to a minimum
	93	!
[3939]	94	! unused variable removed
[4648]	95	!
[3939]	96	! 3937 2019-04-29 15:09:07Z suehring
[4648]	97	! Move initialization of synthetic turbulence generator behind initialization of offline nesting.
	98	! Remove call for stg_adjust, as this is now already done in stg_init.
	99	!
[3937]	100	! 3900 2019-04-16 15:17:43Z suehring
[3900]	101	! Fix problem with LOD = 2 initialization
[4648]	102	!
[3900]	103	! 3885 2019-04-11 11:29:34Z kanani
[4648]	104	! Changes related to global restructuring of location messages and introduction of additional debug
	105	! messages
	106	!
[3885]	107	! 3849 2019-04-01 16:35:16Z knoop
[3747]	108	! Move initialization of rmask before initializing user_init_arrays
[4648]	109	!
[3747]	110	! 3711 2019-01-31 13:44:26Z knoop
[3711]	111	! Introduced module_interface_init_checks for post-init checks in modules
[4648]	112	!
[3711]	113	! 3700 2019-01-26 17:03:42Z knoop
[3685]	114	! Some interface calls moved to module_interface + cleanup
[4648]	115	!
[3685]	116	! 3648 2019-01-02 16:35:46Z suehring
[3648]	117	! Rename subroutines for surface-data output
[3569]	118	!
[4182]	119	! Revision 1.1 1998/03/09 16:22:22 raasch
	120	! Initial revision
	121	!
	122	!
[1]	123	! Description:
	124	! ------------
[1682]	125	!> Allocation of arrays and initialization of the 3D model via
	126	!> a) pre-run the 1D model
	127	!> or
	128	!> b) pre-set constant linear profiles
	129	!> or
	130	!> c) read values of a previous run
[4648]	131	!--------------------------------------------------------------------------------------------------!
[1682]	132	SUBROUTINE init_3d_model
[1]	133
[3298]	134
[667]	135	USE advec_ws
[1320]	136
[1]	137	USE arrays_3d
[1849]	138
[4648]	139	USE basic_constants_and_equations_mod, &
	140	ONLY: barometric_formula, c_p, exner_function, exner_function_invers, g, &
	141	ideal_gas_law_rho, ideal_gas_law_rho_pt, l_v, pi
[3274]	142
[4648]	143	USE bulk_cloud_model_mod, &
[3685]	144	ONLY: bulk_cloud_model
[3274]	145
[4648]	146	USE chem_modules, &
[3685]	147	ONLY: max_pr_cs ! ToDo: this dependency needs to be removed cause it is ugly #new_dom
[3298]	148
[1]	149	USE control_parameters
[3298]	150
[4648]	151	USE grid_variables, &
[2037]	152	ONLY: dx, dy, ddx2_mg, ddy2_mg
[2817]	153
[1]	154	USE indices
[3469]	155
[1320]	156	USE kinds
[4648]	157
	158	USE lsf_nudging_mod, &
[3685]	159	ONLY: ls_forcing_surf
[1849]	160
[4648]	161	USE model_1d_mod, &
[3241]	162	ONLY: init_1d_model, l1d, u1d, v1d
[2338]	163
[4648]	164	USE module_interface, &
	165	ONLY: module_interface_init_arrays, &
	166	module_interface_init, &
[3711]	167	module_interface_init_checks
[3685]	168
[4648]	169	USE multi_agent_system_mod, &
[3159]	170	ONLY: agents_active, mas_init
	171
[4648]	172	USE netcdf_interface, &
[3700]	173	ONLY: dots_max
[2696]	174
[4648]	175	USE netcdf_data_input_mod, &
	176	ONLY: char_fill, &
	177	check_existence, &
	178	close_input_file, &
	179	get_attribute, &
	180	get_variable, &
	181	init_3d, &
	182	input_pids_static, &
	183	inquire_num_variables, &
	184	inquire_variable_names, &
	185	input_file_static, &
	186	netcdf_data_input_init_3d, &
	187	num_var_pids, &
	188	open_read_file, &
	189	pids_id, &
	190	real_2d, &
[4186]	191	vars_pids
[4648]	192
	193	USE nesting_offl_mod, &
[3347]	194	ONLY: nesting_offl_init
[3294]	195
[4648]	196	USE palm_date_time_mod, &
[4227]	197	ONLY: set_reference_date_time
	198
[1]	199	USE pegrid
[3298]	200
[3524]	201	#if defined( __parallel )
[4648]	202	USE pmc_interface, &
[2934]	203	ONLY: nested_run
[3524]	204	#endif
[2934]	205
[4648]	206	USE random_function_mod
[3685]	207
[4648]	208	USE random_generator_parallel, &
[2172]	209	ONLY: init_parallel_random_generator
[3685]	210
[4648]	211	USE read_restart_data_mod, &
	212	ONLY: rrd_local, rrd_read_parts_of_global
[3685]	213
[4648]	214	USE statistics, &
	215	ONLY: hom, hom_sum, mean_surface_level_height, pr_palm, rmask, statistic_regions, sums, &
	216	sums_divnew_l, sums_divold_l, sums_l, sums_l_l, sums_wsts_bc_l, ts_value, &
[1833]	217	weight_pres, weight_substep
[2259]	218
[4648]	219	USE synthetic_turbulence_generator_mod, &
[3939]	220	ONLY: stg_init, use_syn_turb_gen
[3685]	221
[4648]	222	USE surface_layer_fluxes_mod, &
[1691]	223	ONLY: init_surface_layer_fluxes
[2232]	224
[4648]	225	USE surface_mod, &
	226	ONLY : init_single_surface_properties, &
	227	init_surface_arrays, &
	228	init_surfaces, &
	229	surf_def_h, &
	230	surf_def_v, &
	231	surf_lsm_h, &
[4168]	232	surf_usm_h
[3685]	233
[3849]	234	#if defined( _OPENACC )
[4648]	235	USE surface_mod, &
[3849]	236	ONLY : bc_h
	237	#endif
	238
[4648]	239	USE surface_data_output_mod, &
[3648]	240	ONLY: surface_data_output_init
[3685]	241
[2007]	242	USE transpose_indices
[1]	243
[4648]	244
[1]	245	IMPLICIT NONE
[4648]	246
[4150]	247	INTEGER(iwp) :: i !< grid index in x direction
	248	INTEGER(iwp) :: ind_array(1) !< dummy used to determine start index for external pressure forcing
	249	INTEGER(iwp) :: j !< grid index in y direction
	250	INTEGER(iwp) :: k !< grid index in z direction
	251	INTEGER(iwp) :: k_surf !< surface level index
[4648]	252	INTEGER(iwp) :: l !< running index over surface orientation
	253	INTEGER(iwp) :: m !< index of surface element in surface data type
[4150]	254	INTEGER(iwp) :: nz_u_shift !< topography-top index on u-grid, used to vertically shift initial profiles
	255	INTEGER(iwp) :: nz_v_shift !< topography-top index on v-grid, used to vertically shift initial profiles
	256	INTEGER(iwp) :: nz_w_shift !< topography-top index on w-grid, used to vertically shift initial profiles
	257	INTEGER(iwp) :: nz_s_shift !< topography-top index on scalar-grid, used to vertically shift initial profiles
	258	INTEGER(iwp) :: nz_u_shift_l !< topography-top index on u-grid, used to vertically shift initial profiles
	259	INTEGER(iwp) :: nz_v_shift_l !< topography-top index on v-grid, used to vertically shift initial profiles
	260	INTEGER(iwp) :: nz_w_shift_l !< topography-top index on w-grid, used to vertically shift initial profiles
	261	INTEGER(iwp) :: nz_s_shift_l !< topography-top index on scalar-grid, used to vertically shift initial profiles
	262	INTEGER(iwp) :: nzt_l !< index of top PE boundary for multigrid level
	263	INTEGER(iwp) :: sr !< index of statistic region
[1]	264
[4648]	265	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !< toal number of horizontal grid points in statistical region on
	266	!< subdomain
[1]	267
[4648]	268	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !< number of horizontal non-wall bounded grid points on
	269	!< subdomain
	270	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !< number of horizontal non-topography grid points on
	271	!< subdomain
[1]	272
[2037]	273	REAL(wp) :: dx_l !< grid spacing along x on different multigrid level
	274	REAL(wp) :: dy_l !< grid spacing along y on different multigrid level
	275
[4648]	276	REAL(wp), DIMENSION(:), ALLOCATABLE :: init_l !< dummy array used for averaging 3D data to obtain
	277	!< inital profiles
	278	REAL(wp), DIMENSION(:), ALLOCATABLE :: mean_surface_level_height_l !< mean surface level height on subdomain
	279	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !< total number of non-topography grid points on subdomain
	280	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !< total number of non-topography grid points
	281	REAL(wp), DIMENSION(:), ALLOCATABLE :: p_hydrostatic !< hydrostatic pressure
	282
[3547]	283	REAL(wp), DIMENSION(1:3) :: volume_flow_area_l !< area of lateral and top model domain surface on local subdomain
	284	REAL(wp), DIMENSION(1:3) :: volume_flow_initial_l !< initial volume flow into model domain
[1]	285
[4648]	286	TYPE(real_2d) :: tmp_2d !< temporary variable to input additional surface-data from static file
[1]	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
[4648]	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) )
[4648]	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), &
	311	sums(nzb:nzt+1,pr_palm+max_pr_user+max_pr_cs+max_pr_salsa), &
[4131]	312	sums_l(nzb:nzt+1,pr_palm+max_pr_user+max_pr_cs+max_pr_salsa,0:threads_per_task-1), &
[4648]	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
[4648]	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
[4648]	322	ALLOCATE( pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	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.
[4648]	338	!-- Ghost points are excluded because counting values at the ghost boundaries would bias the
	339	!-- statistics.
[3747]	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	!
[4648]	344	!-- Following array is required for perturbation pressure within the iterative pressure solvers. For
	345	!-- the multistep schemes (Runge-Kutta), array p holds the weighted average of the substeps and
	346	!-- cannot be used in the Poisson solver.
[707]	347	IF ( psolver == 'sor' ) THEN
	348	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1575]	349	ELSEIF ( psolver(1:9) == 'multigrid' ) THEN
[707]	350	!
	351	!-- For performance reasons, multigrid is using one ghost layer only
	352	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[673]	353	ENDIF
[1]	354
[1111]	355	!
	356	!-- Array for storing constant coeffficients of the tridiagonal solver
	357	IF ( psolver == 'poisfft' ) THEN
[1212]	358	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
[1111]	359	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
	360	ENDIF
	361
[1960]	362	IF ( humidity ) THEN
[1]	363	!
[1960]	364	!-- 3D-humidity
[4648]	365	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	366	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	367	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	368	vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	369	ENDIF
	370
[1960]	371	IF ( passive_scalar ) THEN
[1]	372
[1960]	373	!
	374	!-- 3D scalar arrays
[4648]	375	ALLOCATE( s_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	376	s_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1960]	377	s_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[3636]	378
[1960]	379	ENDIF
	380
[1]	381	!
[4648]	382	!-- Allocate and set 1d-profiles for Stokes drift velocity. It may be set to non-zero values later
	383	!-- in ocean_init.
	384	ALLOCATE( u_stokes_zu(nzb:nzt+1), u_stokes_zw(nzb:nzt+1), &
[3302]	385	v_stokes_zu(nzb:nzt+1), v_stokes_zw(nzb:nzt+1) )
	386	u_stokes_zu(:) = 0.0_wp
	387	u_stokes_zw(:) = 0.0_wp
	388	v_stokes_zu(:) = 0.0_wp
	389	v_stokes_zw(:) = 0.0_wp
	390
	391	!
[2037]	392	!-- Allocation of anelastic and Boussinesq approximation specific arrays
	393	ALLOCATE( p_hydrostatic(nzb:nzt+1) )
	394	ALLOCATE( rho_air(nzb:nzt+1) )
	395	ALLOCATE( rho_air_zw(nzb:nzt+1) )
	396	ALLOCATE( drho_air(nzb:nzt+1) )
	397	ALLOCATE( drho_air_zw(nzb:nzt+1) )
	398	!
[4648]	399	!-- Density profile calculation for anelastic and Boussinesq approximation.
	400	!-- In case of a Boussinesq approximation, a constant density is calculated mainly for output
	401	!-- purposes. This density does not need to be considered in the model's system of equations.
[4088]	402	IF ( TRIM( approximation ) == 'anelastic' ) THEN
[2037]	403	DO k = nzb, nzt+1
[4648]	404	p_hydrostatic(k) = barometric_formula(zu(k), pt_surface * &
	405	exner_function(surface_pressure * 100.0_wp), &
	406	surface_pressure * 100.0_wp)
	407
[4088]	408	rho_air(k) = ideal_gas_law_rho_pt(p_hydrostatic(k), pt_init(k))
[2037]	409	ENDDO
[4648]	410
[2037]	411	DO k = nzb, nzt
	412	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
	413	ENDDO
[4648]	414
	415	rho_air_zw(nzt+1) = rho_air_zw(nzt) + 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
	416
[2037]	417	ELSE
[2252]	418	DO k = nzb, nzt+1
[4648]	419	p_hydrostatic(k) = barometric_formula(zu(nzb), pt_surface * &
	420	exner_function(surface_pressure * 100.0_wp), &
	421	surface_pressure * 100.0_wp)
[4088]	422
	423	rho_air(k) = ideal_gas_law_rho_pt(p_hydrostatic(k), pt_init(nzb))
[2252]	424	ENDDO
[4648]	425
[2252]	426	DO k = nzb, nzt
	427	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
	428	ENDDO
[4648]	429
	430	rho_air_zw(nzt+1) = rho_air_zw(nzt) + 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
	431
[2037]	432	ENDIF
[2696]	433	!
[4648]	434	!-- Compute the inverse density array in order to avoid expencive divisions
[2037]	435	drho_air = 1.0_wp / rho_air
	436	drho_air_zw = 1.0_wp / rho_air_zw
	437
	438	!
	439	!-- Allocation of flux conversion arrays
	440	ALLOCATE( heatflux_input_conversion(nzb:nzt+1) )
	441	ALLOCATE( waterflux_input_conversion(nzb:nzt+1) )
	442	ALLOCATE( momentumflux_input_conversion(nzb:nzt+1) )
	443	ALLOCATE( heatflux_output_conversion(nzb:nzt+1) )
	444	ALLOCATE( waterflux_output_conversion(nzb:nzt+1) )
	445	ALLOCATE( momentumflux_output_conversion(nzb:nzt+1) )
	446
	447	!
[4648]	448	!-- Calculate flux conversion factors according to approximation and in-/output mode
[2037]	449	DO k = nzb, nzt+1
	450
	451	IF ( TRIM( flux_input_mode ) == 'kinematic' ) THEN
	452	heatflux_input_conversion(k) = rho_air_zw(k)
	453	waterflux_input_conversion(k) = rho_air_zw(k)
	454	momentumflux_input_conversion(k) = rho_air_zw(k)
	455	ELSEIF ( TRIM( flux_input_mode ) == 'dynamic' ) THEN
[3274]	456	heatflux_input_conversion(k) = 1.0_wp / c_p
[2037]	457	waterflux_input_conversion(k) = 1.0_wp / l_v
	458	momentumflux_input_conversion(k) = 1.0_wp
	459	ENDIF
	460
	461	IF ( TRIM( flux_output_mode ) == 'kinematic' ) THEN
	462	heatflux_output_conversion(k) = drho_air_zw(k)
	463	waterflux_output_conversion(k) = drho_air_zw(k)
	464	momentumflux_output_conversion(k) = drho_air_zw(k)
	465	ELSEIF ( TRIM( flux_output_mode ) == 'dynamic' ) THEN
[3274]	466	heatflux_output_conversion(k) = c_p
[2037]	467	waterflux_output_conversion(k) = l_v
	468	momentumflux_output_conversion(k) = 1.0_wp
	469	ENDIF
	470
	471	IF ( .NOT. humidity ) THEN
	472	waterflux_input_conversion(k) = 1.0_wp
	473	waterflux_output_conversion(k) = 1.0_wp
	474	ENDIF
	475
	476	ENDDO
	477
	478	!
[4648]	479	!-- In case of multigrid method, compute grid lengths and grid factors for the grid levels with
	480	!-- respective density on each grid.
[2037]	481	IF ( psolver(1:9) == 'multigrid' ) THEN
	482
	483	ALLOCATE( ddx2_mg(maximum_grid_level) )
	484	ALLOCATE( ddy2_mg(maximum_grid_level) )
	485	ALLOCATE( dzu_mg(nzb+1:nzt+1,maximum_grid_level) )
	486	ALLOCATE( dzw_mg(nzb+1:nzt+1,maximum_grid_level) )
	487	ALLOCATE( f1_mg(nzb+1:nzt,maximum_grid_level) )
	488	ALLOCATE( f2_mg(nzb+1:nzt,maximum_grid_level) )
	489	ALLOCATE( f3_mg(nzb+1:nzt,maximum_grid_level) )
	490	ALLOCATE( rho_air_mg(nzb:nzt+1,maximum_grid_level) )
	491	ALLOCATE( rho_air_zw_mg(nzb:nzt+1,maximum_grid_level) )
	492
	493	dzu_mg(:,maximum_grid_level) = dzu
	494	rho_air_mg(:,maximum_grid_level) = rho_air
[4648]	495	!
	496	!-- Next line to ensure an equally spaced grid.
[2037]	497	dzu_mg(1,maximum_grid_level) = dzu(2)
[4648]	498	rho_air_mg(nzb,maximum_grid_level) = rho_air(nzb) + (rho_air(nzb) - rho_air(nzb+1))
[2037]	499
	500	dzw_mg(:,maximum_grid_level) = dzw
	501	rho_air_zw_mg(:,maximum_grid_level) = rho_air_zw
	502	nzt_l = nzt
	503	DO l = maximum_grid_level-1, 1, -1
	504	dzu_mg(nzb+1,l) = 2.0_wp * dzu_mg(nzb+1,l+1)
	505	dzw_mg(nzb+1,l) = 2.0_wp * dzw_mg(nzb+1,l+1)
[4648]	506	rho_air_mg(nzb,l) = rho_air_mg(nzb,l+1) + ( rho_air_mg(nzb,l+1) - &
	507	rho_air_mg(nzb+1,l+1) )
	508	rho_air_zw_mg(nzb,l) = rho_air_zw_mg(nzb,l+1) + ( rho_air_zw_mg(nzb,l+1) - &
	509	rho_air_zw_mg(nzb+1,l+1) )
[2037]	510	rho_air_mg(nzb+1,l) = rho_air_mg(nzb+1,l+1)
	511	rho_air_zw_mg(nzb+1,l) = rho_air_zw_mg(nzb+1,l+1)
	512	nzt_l = nzt_l / 2
	513	DO k = 2, nzt_l+1
	514	dzu_mg(k,l) = dzu_mg(2k-2,l+1) + dzu_mg(2k-1,l+1)
	515	dzw_mg(k,l) = dzw_mg(2k-2,l+1) + dzw_mg(2k-1,l+1)
	516	rho_air_mg(k,l) = rho_air_mg(2*k-1,l+1)
	517	rho_air_zw_mg(k,l) = rho_air_zw_mg(2*k-1,l+1)
	518	ENDDO
	519	ENDDO
	520
	521	nzt_l = nzt
	522	dx_l = dx
	523	dy_l = dy
	524	DO l = maximum_grid_level, 1, -1
	525	ddx2_mg(l) = 1.0_wp / dx_l**2
	526	ddy2_mg(l) = 1.0_wp / dy_l**2
	527	DO k = nzb+1, nzt_l
	528	f2_mg(k,l) = rho_air_zw_mg(k,l) / ( dzu_mg(k+1,l) * dzw_mg(k,l) )
	529	f3_mg(k,l) = rho_air_zw_mg(k-1,l) / ( dzu_mg(k,l) * dzw_mg(k,l) )
[4648]	530	f1_mg(k,l) = 2.0_wp * ( ddx2_mg(l) + ddy2_mg(l) ) &
[2037]	531	* rho_air_mg(k,l) + f2_mg(k,l) + f3_mg(k,l)
	532	ENDDO
	533	nzt_l = nzt_l / 2
	534	dx_l = dx_l * 2.0_wp
	535	dy_l = dy_l * 2.0_wp
	536	ENDDO
	537
	538	ENDIF
	539
	540	!
[1299]	541	!-- 1D-array for large scale subsidence velocity
[1361]	542	IF ( .NOT. ALLOCATED( w_subs ) ) THEN
	543	ALLOCATE ( w_subs(nzb:nzt+1) )
	544	w_subs = 0.0_wp
	545	ENDIF
[1299]	546
	547	!
[4648]	548	!-- Arrays to store velocity data from t-dt and the phase speeds which are needed for radiation
	549	!-- boundary conditions.
[3182]	550	IF ( bc_radiation_l ) THEN
[4648]	551	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
	552	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
[667]	553	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
[73]	554	ENDIF
[3182]	555	IF ( bc_radiation_r ) THEN
[4648]	556	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	557	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
[667]	558	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
[73]	559	ENDIF
[3182]	560	IF ( bc_radiation_l .OR. bc_radiation_r ) THEN
[4648]	561	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), c_w(nzb:nzt+1,nysg:nyng) )
[106]	562	ENDIF
[3182]	563	IF ( bc_radiation_s ) THEN
[4648]	564	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
	565	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
[667]	566	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
[73]	567	ENDIF
[3182]	568	IF ( bc_radiation_n ) THEN
[4648]	569	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	570	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
[667]	571	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
[73]	572	ENDIF
[3182]	573	IF ( bc_radiation_s .OR. bc_radiation_n ) THEN
[4648]	574	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), c_w(nzb:nzt+1,nxlg:nxrg) )
[106]	575	ENDIF
[4648]	576	IF ( bc_radiation_l .OR. bc_radiation_r .OR. bc_radiation_s .OR. bc_radiation_n ) THEN
	577	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
[978]	578	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
	579	ENDIF
[73]	580
	581	!
[1]	582	!-- Initial assignment of the pointers
[1032]	583	IF ( .NOT. neutral ) THEN
	584	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
	585	ELSE
	586	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
	587	ENDIF
[1001]	588	u => u_1; u_p => u_2; tu_m => u_3
	589	v => v_1; v_p => v_2; tv_m => v_3
	590	w => w_1; w_p => w_2; tw_m => w_3
[1]	591
[1960]	592	IF ( humidity ) THEN
[1001]	593	q => q_1; q_p => q_2; tq_m => q_3
[3274]	594	vpt => vpt_1
[1001]	595	ENDIF
[4648]	596
[1960]	597	IF ( passive_scalar ) THEN
	598	s => s_1; s_p => s_2; ts_m => s_3
[4648]	599	ENDIF
[1]	600
	601	!
[2696]	602	!-- Initialize surface arrays
[2232]	603	CALL init_surface_arrays
	604	!
[3294]	605	!-- Allocate arrays for other modules
[3685]	606	CALL module_interface_init_arrays
[1551]	607
[1914]	608
[2320]	609	!
[4648]	610	!-- Allocate arrays containing the RK coefficient for calculation of perturbation pressure and
	611	!-- turbulent fluxes. At this point values are set for pressure calculation during initialization
	612	!-- (where no timestep is done). Further below the values needed within the timestep scheme will be
	613	!-- set.
	614	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
[1878]	615	weight_pres(1:intermediate_timestep_count_max) )
[1340]	616	weight_substep = 1.0_wp
	617	weight_pres = 1.0_wp
[1918]	618	intermediate_timestep_count = 0 ! needed when simulated_time = 0.0
[4648]	619
[3987]	620	IF ( debug_output ) CALL debug_message( 'allocating arrays', 'end' )
[1918]	621
[673]	622	!
[3014]	623	!-- Initialize time series
	624	ts_value = 0.0_wp
	625
	626	!
[1918]	627	!-- Initialize local summation arrays for routine flow_statistics.
[4648]	628	!-- This is necessary because they may not yet have been initialized when they are called from
	629	!-- flow_statistics (or - depending on the chosen model run - are never initialized)
	630	sums_divnew_l = 0.0_wp
	631	sums_divold_l = 0.0_wp
	632	sums_l_l = 0.0_wp
	633	sums_wsts_bc_l = 0.0_wp
	634
[1918]	635	!
[1]	636	!-- Initialize model variables
[4648]	637	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[328]	638	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[1]	639	!
[2696]	640	!-- Initialization with provided input data derived from larger-scale model
	641	IF ( INDEX( initializing_actions, 'inifor' ) /= 0 ) THEN
[3987]	642	IF ( debug_output ) CALL debug_message( 'initializing with INIFOR', 'start' )
[2696]	643	!
[4648]	644	!-- Read initial 1D profiles or 3D data from NetCDF file, depending on the provided
	645	!-- level-of-detail.
	646	!-- At the moment, only u, v, w, pt and q are provided.
[2696]	647	CALL netcdf_data_input_init_3d
	648	!
[4648]	649	!-- Please note, Inifor provides data from nzb+1 to nzt.
	650	!-- Bottom and top boundary conditions for Inifor profiles are already set (just after
	651	!-- reading), so that this is not necessary here.
	652	!-- Depending on the provided level-of-detail, initial Inifor data is either stored on data
	653	!-- type (lod=1), or directly on 3D arrays (lod=2).
	654	!-- In order to obtain also initial profiles in case of lod=2 (which is required for e.g.
	655	!-- damping), average over 3D data.
[3182]	656	IF( init_3d%lod_u == 1 ) THEN
	657	u_init = init_3d%u_init
[4648]	658	ELSEIF( init_3d%lod_u == 2 ) THEN
	659	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	660	DO k = nzb, nzt+1
	661	init_l(k) = SUM( u(k,nys:nyn,nxl:nxr) )
	662	ENDDO
	663	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
[1384]	664
[3182]	665	#if defined( __parallel )
[4648]	666	CALL MPI_ALLREDUCE( init_l, u_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	667	#else
	668	u_init = init_l
	669	#endif
	670	DEALLOCATE( init_l )
[3051]	671
[2696]	672	ENDIF
[4648]	673
	674	IF( init_3d%lod_v == 1 ) THEN
[3182]	675	v_init = init_3d%v_init
[4648]	676	ELSEIF( init_3d%lod_v == 2 ) THEN
	677	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	678	DO k = nzb, nzt+1
	679	init_l(k) = SUM( v(k,nys:nyn,nxl:nxr) )
	680	ENDDO
	681	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
[2696]	682
[3182]	683	#if defined( __parallel )
[4648]	684	CALL MPI_ALLREDUCE( init_l, v_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	685	#else
	686	v_init = init_l
	687	#endif
	688	DEALLOCATE( init_l )
	689	ENDIF
	690	IF( .NOT. neutral ) THEN
	691	IF( init_3d%lod_pt == 1 ) THEN
	692	pt_init = init_3d%pt_init
[4648]	693	ELSEIF( init_3d%lod_pt == 2 ) THEN
	694	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	695	DO k = nzb, nzt+1
	696	init_l(k) = SUM( pt(k,nys:nyn,nxl:nxr) )
	697	ENDDO
	698	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
	699
	700	#if defined( __parallel )
[4648]	701	CALL MPI_ALLREDUCE( init_l, pt_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	702	#else
	703	pt_init = init_l
	704	#endif
	705	DEALLOCATE( init_l )
	706	ENDIF
	707	ENDIF
	708
	709
	710	IF( humidity ) THEN
	711	IF( init_3d%lod_q == 1 ) THEN
	712	q_init = init_3d%q_init
[4648]	713	ELSEIF( init_3d%lod_q == 2 ) THEN
	714	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	715	DO k = nzb, nzt+1
	716	init_l(k) = SUM( q(k,nys:nyn,nxl:nxr) )
	717	ENDDO
	718	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
	719
	720	#if defined( __parallel )
[4648]	721	CALL MPI_ALLREDUCE( init_l, q_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	722	#else
	723	q_init = init_l
	724	#endif
	725	DEALLOCATE( init_l )
	726	ENDIF
	727	ENDIF
	728
[2696]	729	!
[4648]	730	!-- Write initial profiles onto 3D arrays.
	731	!-- Work-around, 3D initialization of u,v,w creates artificial structures which correlate with
	732	!-- the processor grid. The reason for this is still unknown. To work-around this, 3D
	733	!-- initialization will be effectively reduce to a 1D initialization where no such artificial
	734	!-- structures appear.
[2696]	735	DO i = nxlg, nxrg
	736	DO j = nysg, nyng
[4648]	737	IF( init_3d%lod_u == 1 .OR. init_3d%lod_u == 2 ) u(:,j,i) = u_init(:)
	738	IF( init_3d%lod_v == 1 .OR. init_3d%lod_u == 2 ) v(:,j,i) = v_init(:)
	739	IF( .NOT. neutral .AND. ( init_3d%lod_pt == 1 .OR. init_3d%lod_pt == 2 ) ) &
[3051]	740	pt(:,j,i) = pt_init(:)
[4648]	741	IF( humidity .AND. ( init_3d%lod_q == 1 .OR. init_3d%lod_q == 2 ) ) &
[4130]	742	q(:,j,i) = q_init(:)
[2696]	743	ENDDO
	744	ENDDO
	745	!
[4648]	746	!-- Set geostrophic wind components.
[2938]	747	IF ( init_3d%from_file_ug ) THEN
	748	ug(:) = init_3d%ug_init(:)
	749	ENDIF
	750	IF ( init_3d%from_file_vg ) THEN
	751	vg(:) = init_3d%vg_init(:)
	752	ENDIF
[3404]	753	!
	754	!-- Set bottom and top boundary condition for geostrophic wind
[2938]	755	ug(nzt+1) = ug(nzt)
	756	vg(nzt+1) = vg(nzt)
[3404]	757	ug(nzb) = ug(nzb+1)
	758	vg(nzb) = vg(nzb+1)
[2696]	759	!
	760	!-- Set inital w to 0
	761	w = 0.0_wp
	762
	763	IF ( passive_scalar ) THEN
	764	DO i = nxlg, nxrg
	765	DO j = nysg, nyng
	766	s(:,j,i) = s_init
	767	ENDDO
	768	ENDDO
	769	ENDIF
	770
	771	!
[4648]	772	!-- Set velocity components at non-atmospheric / oceanic grid points to zero.
[4346]	773	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
	774	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
	775	w = MERGE( w, 0.0_wp, BTEST( wall_flags_total_0, 3 ) )
[2700]	776	!
[4648]	777	!-- Initialize surface variables, e.g. friction velocity, momentum fluxes, etc.
	778	CALL init_surfaces
[2696]	779
[4648]	780	IF ( debug_output ) CALL debug_message( 'initializing with INIFOR', 'end' )
[2696]	781	!
	782	!-- Initialization via computed 1D-model profiles
	783	ELSEIF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
	784
[4648]	785	IF ( debug_output ) CALL debug_message( 'initializing with 1D model profiles', 'start' )
[1]	786	!
	787	!-- Use solutions of the 1D model as initial profiles,
	788	!-- start 1D model
	789	CALL init_1d_model
	790	!
	791	!-- Transfer initial profiles to the arrays of the 3D model
[667]	792	DO i = nxlg, nxrg
	793	DO j = nysg, nyng
[1]	794	pt(:,j,i) = pt_init
	795	u(:,j,i) = u1d
	796	v(:,j,i) = v1d
	797	ENDDO
	798	ENDDO
	799
[1960]	800	IF ( humidity ) THEN
[667]	801	DO i = nxlg, nxrg
	802	DO j = nysg, nyng
[1]	803	q(:,j,i) = q_init
	804	ENDDO
	805	ENDDO
	806	ENDIF
[2292]	807
[1960]	808	IF ( passive_scalar ) THEN
	809	DO i = nxlg, nxrg
	810	DO j = nysg, nyng
	811	s(:,j,i) = s_init
	812	ENDDO
[4648]	813	ENDDO
[1960]	814	ENDIF
[1]	815	!
	816	!-- Store initial profiles for output purposes etc.
[2696]	817	IF ( .NOT. constant_diffusion ) THEN
[1]	818	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	819	ENDIF
	820	!
[2696]	821	!-- Set velocities back to zero
[4346]	822	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
[4648]	823	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
[1]	824	!
[4648]	825	!-- WARNING: The extra boundary conditions set after running the 1D model impose an error on
	826	!-- -------- the divergence one layer below the topography; need to correct later
	827	!-- ATTENTION: Provisional correction for Piacsek & Williams advection scheme: keep u and v
	828	!-- ---------- zero one layer below the topography.
[2696]	829	IF ( ibc_uv_b == 1 ) THEN
[667]	830	!
[2696]	831	!-- Neumann condition
	832	DO i = nxl-1, nxr+1
	833	DO j = nys-1, nyn+1
	834	u(nzb,j,i) = u(nzb+1,j,i)
	835	v(nzb,j,i) = v(nzb+1,j,i)
[1]	836	ENDDO
[2696]	837	ENDDO
[1]	838
	839	ENDIF
[2618]	840	!
[4648]	841	!-- Initialize surface variables, e.g. friction velocity, momentum fluxes, etc.
[2618]	842	CALL init_surfaces
[1]	843
[4648]	844	IF ( debug_output ) CALL debug_message( 'initializing with 1D model profiles', 'end' )
[1384]	845
[4648]	846	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) THEN
[1241]	847
[4648]	848	IF ( debug_output ) CALL debug_message( 'initializing with constant profiles', 'start' )
[2259]	849
	850	!
[4648]	851	!-- Use constructed initial profiles (velocity constant with height, temperature profile with
	852	!-- constant gradient)
[667]	853	DO i = nxlg, nxrg
	854	DO j = nysg, nyng
[1]	855	pt(:,j,i) = pt_init
	856	u(:,j,i) = u_init
	857	v(:,j,i) = v_init
	858	ENDDO
	859	ENDDO
	860	!
[2758]	861	!-- Mask topography
[4346]	862	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
	863	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
[2758]	864	!
[4648]	865	!-- Set initial horizontal velocities at the lowest computational grid levels to zero in order
	866	!-- to avoid too small time steps caused by the diffusion limit in the initial phase of a run
	867	!-- (at k=1, dz/2 occurs in the limiting formula!).
	868	!-- Please note, in case land- or urban-surface model is used and a spinup is applied, masking
	869	!-- the lowest computational level is not possible as MOST as well as energy-balance
	870	!-- parametrizations will not work with zero wind velocity.
	871	IF ( ibc_uv_b /= 1 .AND. .NOT. spinup ) THEN
[1815]	872	DO i = nxlg, nxrg
	873	DO j = nysg, nyng
[2232]	874	DO k = nzb, nzt
[4648]	875	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 20 ) )
	876	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 21 ) )
[2232]	877	ENDDO
[1815]	878	ENDDO
	879	ENDDO
	880	ENDIF
[1]	881
[1960]	882	IF ( humidity ) THEN
[667]	883	DO i = nxlg, nxrg
	884	DO j = nysg, nyng
[1]	885	q(:,j,i) = q_init
	886	ENDDO
	887	ENDDO
	888	ENDIF
[4648]	889
[1960]	890	IF ( passive_scalar ) THEN
	891	DO i = nxlg, nxrg
	892	DO j = nysg, nyng
	893	s(:,j,i) = s_init
	894	ENDDO
	895	ENDDO
	896	ENDIF
[1]	897
[1920]	898	!
[4648]	899	!-- Compute initial temperature field and other constants used in case of a sloping surface.
[1]	900	IF ( sloping_surface ) CALL init_slope
[2618]	901	!
[4648]	902	!-- Initialize surface variables, e.g. friction velocity, momentum fluxes, etc.
[2618]	903	CALL init_surfaces
[4648]	904
[3987]	905	IF ( debug_output ) CALL debug_message( 'initializing with constant profiles', 'end' )
[1384]	906
[4648]	907	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) THEN
[1384]	908
[3987]	909	IF ( debug_output ) CALL debug_message( 'initializing by user', 'start' )
[46]	910	!
[4648]	911	!-- Pre-initialize surface variables, i.e. setting start- and end-indices at each
	912	!-- (j,i)-location. Please note, this does not supersede user-defined initialization of
	913	!-- surface quantities.
[2618]	914	CALL init_surfaces
	915	!
[46]	916	!-- Initialization will completely be done by the user
	917	CALL user_init_3d_model
	918
[3987]	919	IF ( debug_output ) CALL debug_message( 'initializing by user', 'end' )
[1384]	920
[1]	921	ENDIF
[1384]	922
[4648]	923	IF ( debug_output ) THEN
	924	CALL debug_message( 'initializing statistics, boundary conditions, etc.', 'start' )
	925	ENDIF
[1384]	926
[667]	927	!
	928	!-- Bottom boundary
[4648]	929	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
[1340]	930	u(nzb,:,:) = 0.0_wp
	931	v(nzb,:,:) = 0.0_wp
[667]	932	ENDIF
[1]	933
	934	!
[151]	935	!-- Apply channel flow boundary condition
[132]	936	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
[1340]	937	u(nzt+1,:,:) = 0.0_wp
	938	v(nzt+1,:,:) = 0.0_wp
[132]	939	ENDIF
	940
	941	!
[1]	942	!-- Calculate virtual potential temperature
[1960]	943	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
[1]	944
	945	!
[4648]	946	!-- Store initial profiles for output purposes etc.. Please note, in case of initialization of u,
	947	!-- v, w, pt, and q via output data derived from larger scale models, data will not be
	948	!-- horizontally homogeneous. Actually, a mean profile should be calculated before.
[1]	949	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	950	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
[667]	951	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
[1340]	952	hom(nzb,1,5,:) = 0.0_wp
	953	hom(nzb,1,6,:) = 0.0_wp
[1]	954	ENDIF
	955	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	956
[75]	957	IF ( humidity ) THEN
[1]	958	!
[4648]	959	!-- Store initial profile of total water content, virtual potential temperature
[1]	960	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	961	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
[2696]	962	!
[4648]	963	!-- Store initial profile of mixing ratio and potential temperature
[3274]	964	IF ( bulk_cloud_model .OR. cloud_droplets ) THEN
[1]	965	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	966	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	967	ENDIF
	968	ENDIF
	969
[2696]	970	!
	971	!-- Store initial scalar profile
[1]	972	IF ( passive_scalar ) THEN
[2513]	973	hom(:,1,121,:) = SPREAD( s(:,nys,nxl), 2, statistic_regions+1 )
[1]	974	ENDIF
	975
	976	!
[1400]	977	!-- Initialize the random number generators (from numerical recipes)
	978	CALL random_function_ini
[4648]	979
[1400]	980	IF ( random_generator == 'random-parallel' ) THEN
[3241]	981	CALL init_parallel_random_generator( nx, nys, nyn, nxl, nxr )
[1400]	982	ENDIF
	983	!
[4648]	984	!-- Set the reference state to be used in the buoyancy terms (for ocean runs the reference state
	985	!-- will be set (overwritten) in init_ocean).
[1179]	986	IF ( use_single_reference_value ) THEN
[4648]	987	IF ( .NOT. humidity ) THEN
[1179]	988	ref_state(:) = pt_reference
	989	ELSE
	990	ref_state(:) = vpt_reference
	991	ENDIF
	992	ELSE
[4648]	993	IF ( .NOT. humidity ) THEN
[1179]	994	ref_state(:) = pt_init(:)
	995	ELSE
	996	ref_state(:) = vpt(:,nys,nxl)
	997	ENDIF
	998	ENDIF
[152]	999
	1000	!
[707]	1001	!-- For the moment, vertical velocity is zero
[1340]	1002	w = 0.0_wp
[1]	1003
	1004	!
	1005	!-- Initialize array sums (must be defined in first call of pres)
[1340]	1006	sums = 0.0_wp
[1]	1007
	1008	!
[707]	1009	!-- In case of iterative solvers, p must get an initial value
[1575]	1010	IF ( psolver(1:9) == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
[707]	1011	!
[1]	1012	!-- Impose vortex with vertical axis on the initial velocity profile
	1013	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	1014	CALL init_rankine
	1015	ENDIF
	1016
	1017	!
[4648]	1018	!-- Impose temperature anomaly (advection test only) or warm air bubble close to surface.
	1019	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 .OR. &
[3035]	1020	INDEX( initializing_actions, 'initialize_bubble' ) /= 0 ) THEN
[1]	1021	CALL init_pt_anomaly
	1022	ENDIF
[4648]	1023
[1]	1024	!
	1025	!-- If required, change the surface temperature at the start of the 3D run
[1340]	1026	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
[1]	1027	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	1028	ENDIF
	1029
	1030	!
	1031	!-- If required, change the surface humidity/scalar at the start of the 3D
	1032	!-- run
[4648]	1033	IF ( humidity .AND. q_surface_initial_change /= 0.0_wp ) &
[1]	1034	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
[4648]	1035
	1036	IF ( passive_scalar .AND. s_surface_initial_change /= 0.0_wp ) &
[1960]	1037	s(nzb,:,:) = s(nzb,:,:) + s_surface_initial_change
[1]	1038
[4648]	1039
[1]	1040	!
	1041	!-- Initialize old and new time levels.
[2696]	1042	tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
	1043	pt_p = pt; u_p = u; v_p = v; w_p = w
[1]	1044
[1960]	1045	IF ( humidity ) THEN
[1340]	1046	tq_m = 0.0_wp
[1]	1047	q_p = q
	1048	ENDIF
[4648]	1049
[1960]	1050	IF ( passive_scalar ) THEN
	1051	ts_m = 0.0_wp
	1052	s_p = s
[4648]	1053	ENDIF
[1]	1054
[4648]	1055	IF ( debug_output ) THEN
	1056	CALL debug_message( 'initializing statistics, boundary conditions, etc.', 'end' )
	1057	ENDIF
[94]	1058
[1788]	1059	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
[2232]	1060	TRIM( initializing_actions ) == 'cyclic_fill' ) &
[1]	1061	THEN
[1384]	1062
[4648]	1063	IF ( debug_output ) THEN
	1064	CALL debug_message( 'initializing in case of restart / cyclic_fill', 'start' )
	1065	ENDIF
[1]	1066	!
[4648]	1067	!-- Initialize surface elements and its attributes, e.g. heat- and momentumfluxes, roughness,
	1068	!-- scaling parameters. As number of surface elements might be different between runs, e.g. in
	1069	!-- case of cyclic fill, and not all surface elements are read, surface elements need to be
	1070	!-- initialized before.
	1071	!-- Please note, in case of cyclic fill, surfaces should be initialized after restart data is
	1072	!-- read, else, individual settings of surface parameters will be overwritten from data of
	1073	!-- precursor run, hence, init_surfaces is called a second time after reading the restart data.
	1074	CALL init_surfaces
[3609]	1075	!
[4648]	1076	!-- When reading data for cyclic fill of 3D prerun data files, read some of the global variables
	1077	!-- from the restart file which are required for initializing the inflow
[328]	1078	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[559]	1079
[759]	1080	DO i = 0, io_blocks-1
	1081	IF ( i == io_group ) THEN
[2894]	1082	CALL rrd_read_parts_of_global
[759]	1083	ENDIF
	1084	#if defined( __parallel )
	1085	CALL MPI_BARRIER( comm2d, ierr )
	1086	#endif
	1087	ENDDO
[328]	1088
[767]	1089	ENDIF
	1090
[151]	1091	!
[2894]	1092	!-- Read processor specific binary data from restart file
[767]	1093	DO i = 0, io_blocks-1
	1094	IF ( i == io_group ) THEN
[2894]	1095	CALL rrd_local
[767]	1096	ENDIF
	1097	#if defined( __parallel )
	1098	CALL MPI_BARRIER( comm2d, ierr )
	1099	#endif
	1100	ENDDO
[4648]	1101
	1102
[4365]	1103	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1104
[3608]	1105	!
[4648]	1106	!-- In case of cyclic fill, call init_surfaces a second time, so that surface properties such
	1107	!-- as heat fluxes are initialized as prescribed.
[3609]	1108	CALL init_surfaces
[767]	1109
[328]	1110	!
[4648]	1111	!-- Overwrite u_init, v_init, pt_init, q_init and s_init with the horizontally mean (hom)
	1112	!-- vertical profiles from the end of the prerun, because these profiles shall be used as the
	1113	!-- reference state for the rayleigh damping and the pt_damping. This is especially important
	1114	!-- for the use of large_scale_subsidence, because the reference temperature in the free
	1115	!-- atmosphere changes in time.
[4365]	1116	u_init(:) = hom_sum(:,1,0)
	1117	v_init(:) = hom_sum(:,2,0)
	1118	pt_init(:) = hom_sum(:,4,0)
[4648]	1119	IF ( humidity ) q_init(:) = hom_sum(:,41,0)
	1120	IF ( passive_scalar ) s_init(:) = hom_sum(:,115,0)
[4365]	1121	ENDIF
	1122	!
[4648]	1123	!-- In case of complex terrain and cyclic fill method as initialization, shift initial data in
	1124	!-- the vertical direction for each point in the x-y-plane depending on local surface height.
	1125	IF ( complex_terrain .AND. TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[2550]	1126	DO i = nxlg, nxrg
	1127	DO j = nysg, nyng
[4168]	1128	nz_u_shift = topo_top_ind(j,i,1)
	1129	nz_v_shift = topo_top_ind(j,i,2)
	1130	nz_w_shift = topo_top_ind(j,i,3)
	1131	nz_s_shift = topo_top_ind(j,i,0)
[2550]	1132
[4648]	1133	u(nz_u_shift:nzt+1,j,i) = u(0:nzt+1-nz_u_shift,j,i)
[2550]	1134
	1135	v(nz_v_shift:nzt+1,j,i) = v(0:nzt+1-nz_v_shift,j,i)
	1136
	1137	w(nz_w_shift:nzt+1,j,i) = w(0:nzt+1-nz_w_shift,j,i)
	1138
	1139	p(nz_s_shift:nzt+1,j,i) = p(0:nzt+1-nz_s_shift,j,i)
	1140	pt(nz_s_shift:nzt+1,j,i) = pt(0:nzt+1-nz_s_shift,j,i)
	1141	ENDDO
	1142	ENDDO
	1143	ENDIF
	1144	!
[767]	1145	!-- Initialization of the turbulence recycling method
[4648]	1146	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. turbulent_inflow ) THEN
[767]	1147	!
	1148	!-- First store the profiles to be used at the inflow.
[4648]	1149	!-- These profiles are the (temporally) and horizontally averaged vertical profiles from the
	1150	!-- prerun. Alternatively, prescribed profiles for u,v-components can be used.
[3288]	1151	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,1:num_mean_inflow_profiles) )
[151]	1152
[767]	1153	IF ( use_prescribed_profile_data ) THEN
	1154	mean_inflow_profiles(:,1) = u_init ! u
	1155	mean_inflow_profiles(:,2) = v_init ! v
	1156	ELSE
[328]	1157	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
	1158	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
[767]	1159	ENDIF
	1160	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
[4648]	1161	IF ( humidity ) mean_inflow_profiles(:,6) = hom_sum(:,41,0) ! q
	1162	IF ( passive_scalar ) mean_inflow_profiles(:,7) = hom_sum(:,115,0) ! s
[4365]	1163
[2550]	1164	!
[4648]	1165	!-- In case of complex terrain, determine vertical displacement at inflow boundary and adjust
	1166	!-- mean inflow profiles
[2550]	1167	IF ( complex_terrain ) THEN
[4648]	1168	IF ( nxlg <= 0 .AND. nxrg >= 0 .AND. nysg <= 0 .AND. nyng >= 0 ) THEN
[4168]	1169	nz_u_shift_l = topo_top_ind(j,i,1)
	1170	nz_v_shift_l = topo_top_ind(j,i,2)
	1171	nz_w_shift_l = topo_top_ind(j,i,3)
	1172	nz_s_shift_l = topo_top_ind(j,i,0)
[2550]	1173	ELSE
	1174	nz_u_shift_l = 0
	1175	nz_v_shift_l = 0
	1176	nz_w_shift_l = 0
	1177	nz_s_shift_l = 0
	1178	ENDIF
[151]	1179
[2550]	1180	#if defined( __parallel )
[4648]	1181	CALL MPI_ALLREDUCE( nz_u_shift_l, nz_u_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
	1182	CALL MPI_ALLREDUCE( nz_v_shift_l, nz_v_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
	1183	CALL MPI_ALLREDUCE( nz_w_shift_l, nz_w_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
	1184	CALL MPI_ALLREDUCE( nz_s_shift_l, nz_s_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
[2550]	1185	#else
	1186	nz_u_shift = nz_u_shift_l
	1187	nz_v_shift = nz_v_shift_l
	1188	nz_w_shift = nz_w_shift_l
	1189	nz_s_shift = nz_s_shift_l
	1190	#endif
	1191
	1192	mean_inflow_profiles(:,1) = 0.0_wp
	1193	mean_inflow_profiles(nz_u_shift:nzt+1,1) = hom_sum(0:nzt+1-nz_u_shift,1,0) ! u
	1194
	1195	mean_inflow_profiles(:,2) = 0.0_wp
	1196	mean_inflow_profiles(nz_v_shift:nzt+1,2) = hom_sum(0:nzt+1-nz_v_shift,2,0) ! v
	1197
	1198	mean_inflow_profiles(nz_s_shift:nzt+1,4) = hom_sum(0:nzt+1-nz_s_shift,4,0) ! pt
	1199
	1200	ENDIF
	1201
[151]	1202	!
[4648]	1203	!-- If necessary, adjust the horizontal flow field to the prescribed profiles
[767]	1204	IF ( use_prescribed_profile_data ) THEN
	1205	DO i = nxlg, nxrg
[667]	1206	DO j = nysg, nyng
[328]	1207	DO k = nzb, nzt+1
[767]	1208	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
	1209	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
[328]	1210	ENDDO
[151]	1211	ENDDO
[767]	1212	ENDDO
	1213	ENDIF
[151]	1214
	1215	!
[4648]	1216	!-- Use these mean profiles at the inflow (provided that Dirichlet conditions are used)
[3182]	1217	IF ( bc_dirichlet_l ) THEN
[767]	1218	DO j = nysg, nyng
	1219	DO k = nzb, nzt+1
	1220	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
	1221	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
[1340]	1222	w(k,j,nxlg:-1) = 0.0_wp
[767]	1223	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
[4648]	1224	IF ( humidity ) q(k,j,nxlg:-1) = mean_inflow_profiles(k,6)
	1225	IF ( passive_scalar ) s(k,j,nxlg:-1) = mean_inflow_profiles(k,7)
[767]	1226	ENDDO
	1227	ENDDO
	1228	ENDIF
	1229
[151]	1230	!
[4648]	1231	!-- Calculate the damping factors to be used at the inflow. For a turbulent inflow the
	1232	!-- turbulent fluctuations have to be limited vertically because otherwise the turbulent
	1233	!-- inflow layer will grow in time.
[1340]	1234	IF ( inflow_damping_height == 9999999.9_wp ) THEN
[767]	1235	!
[4648]	1236	!-- Default: use the inversion height calculated by the prerun; if this is zero,
	1237	!-- inflow_damping_height must be explicitly specified.
[1340]	1238	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
[767]	1239	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
	1240	ELSE
[4648]	1241	WRITE( message_string, * ) 'inflow_damping_height must be ', &
	1242	'explicitly specified because&the inversion height ', &
	1243	'calculated by the prerun is zero.'
[767]	1244	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
[292]	1245	ENDIF
[151]	1246
[767]	1247	ENDIF
	1248
[1340]	1249	IF ( inflow_damping_width == 9999999.9_wp ) THEN
[151]	1250	!
[4648]	1251	!-- Default for the transition range: one tenth of the undamped layer
[1340]	1252	inflow_damping_width = 0.1_wp * inflow_damping_height
[151]	1253
[767]	1254	ENDIF
[151]	1255
[767]	1256	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
[151]	1257
[767]	1258	DO k = nzb, nzt+1
[151]	1259
[767]	1260	IF ( zu(k) <= inflow_damping_height ) THEN
[1340]	1261	inflow_damping_factor(k) = 1.0_wp
[996]	1262	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
[4648]	1263	inflow_damping_factor(k) = 1.0_wp - &
	1264	( zu(k) - inflow_damping_height ) / inflow_damping_width
[767]	1265	ELSE
[1340]	1266	inflow_damping_factor(k) = 0.0_wp
[767]	1267	ENDIF
[151]	1268
[767]	1269	ENDDO
[151]	1270
[147]	1271	ENDIF
	1272
[152]	1273	!
[2696]	1274	!-- Inside buildings set velocities back to zero
[4648]	1275	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. topography /= 'flat' ) THEN
[359]	1276	!
[2696]	1277	!-- Inside buildings set velocities back to zero.
	1278	!-- Other scalars (pt, q, s, p, sa, ...) are ignored at present,
[359]	1279	!-- maybe revise later.
[1001]	1280	DO i = nxlg, nxrg
	1281	DO j = nysg, nyng
[2232]	1282	DO k = nzb, nzt
[4648]	1283	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 1 ) )
	1284	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 2 ) )
	1285	w(k,j,i) = MERGE( w(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 3 ) )
[2232]	1286	ENDDO
[359]	1287	ENDDO
[1001]	1288	ENDDO
[359]	1289
	1290	ENDIF
	1291
	1292	!
[4648]	1293	!-- Calculate initial temperature field and other constants used in case of a sloping surface
[1]	1294	IF ( sloping_surface ) CALL init_slope
	1295
	1296	!
[4648]	1297	!-- Initialize new time levels (only done in order to set boundary values including ghost points)
[2696]	1298	pt_p = pt; u_p = u; v_p = v; w_p = w
[1960]	1299	IF ( humidity ) THEN
[1053]	1300	q_p = q
	1301	ENDIF
[1960]	1302	IF ( passive_scalar ) s_p = s
[181]	1303	!
[4648]	1304	!-- Allthough tendency arrays are set in prognostic_equations, they have have to be predefined
	1305	!-- here because they are used (but multiplied with 0) there before they are set.
[2696]	1306	tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
[1960]	1307	IF ( humidity ) THEN
[1340]	1308	tq_m = 0.0_wp
[1053]	1309	ENDIF
[1960]	1310	IF ( passive_scalar ) ts_m = 0.0_wp
[181]	1311
[4648]	1312	IF ( debug_output ) THEN
	1313	CALL debug_message( 'initializing in case of restart / cyclic_fill', 'end' )
	1314	ENDIF
[1384]	1315
[1]	1316	ELSE
	1317	!
	1318	!-- Actually this part of the programm should not be reached
[254]	1319	message_string = 'unknown initializing problem'
	1320	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
[1]	1321	ENDIF
	1322
[151]	1323
	1324	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
[1]	1325	!
[151]	1326	!-- Initialize old timelevels needed for radiation boundary conditions
[3182]	1327	IF ( bc_radiation_l ) THEN
[151]	1328	u_m_l(:,:,:) = u(:,:,1:2)
	1329	v_m_l(:,:,:) = v(:,:,0:1)
	1330	w_m_l(:,:,:) = w(:,:,0:1)
	1331	ENDIF
[3182]	1332	IF ( bc_radiation_r ) THEN
[151]	1333	u_m_r(:,:,:) = u(:,:,nx-1:nx)
	1334	v_m_r(:,:,:) = v(:,:,nx-1:nx)
	1335	w_m_r(:,:,:) = w(:,:,nx-1:nx)
	1336	ENDIF
[3182]	1337	IF ( bc_radiation_s ) THEN
[151]	1338	u_m_s(:,:,:) = u(:,0:1,:)
	1339	v_m_s(:,:,:) = v(:,1:2,:)
	1340	w_m_s(:,:,:) = w(:,0:1,:)
	1341	ENDIF
[3182]	1342	IF ( bc_radiation_n ) THEN
[151]	1343	u_m_n(:,:,:) = u(:,ny-1:ny,:)
	1344	v_m_n(:,:,:) = v(:,ny-1:ny,:)
	1345	w_m_n(:,:,:) = w(:,ny-1:ny,:)
	1346	ENDIF
[4648]	1347
[151]	1348	ENDIF
[680]	1349
[667]	1350	!
	1351	!-- Calculate the initial volume flow at the right and north boundary
[709]	1352	IF ( conserve_volume_flow ) THEN
[151]	1353
[767]	1354	IF ( use_prescribed_profile_data ) THEN
[667]	1355
[1340]	1356	volume_flow_initial_l = 0.0_wp
	1357	volume_flow_area_l = 0.0_wp
[732]	1358
[667]	1359	IF ( nxr == nx ) THEN
	1360	DO j = nys, nyn
[2232]	1361	DO k = nzb+1, nzt
[4648]	1362	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1363	u_init(k) * dzw(k) &
	1364	* MERGE( 1.0_wp, 0.0_wp, &
	1365	BTEST( wall_flags_total_0(k,j,nxr), 1 ) &
	1366	)
[2232]	1367
[4648]	1368	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1369	* MERGE( 1.0_wp, 0.0_wp, &
	1370	BTEST( wall_flags_total_0(k,j,nxr), 1 ) &
	1371	)
[767]	1372	ENDDO
	1373	ENDDO
	1374	ENDIF
[4648]	1375
[767]	1376	IF ( nyn == ny ) THEN
	1377	DO i = nxl, nxr
[2232]	1378	DO k = nzb+1, nzt
[4648]	1379	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1380	v_init(k) * dzw(k) &
	1381	* MERGE( 1.0_wp, 0.0_wp, &
	1382	BTEST( wall_flags_total_0(k,nyn,i), 2 ) &
	1383	)
	1384	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1385	* MERGE( 1.0_wp, 0.0_wp, &
	1386	BTEST( wall_flags_total_0(k,nyn,i), 2 ) &
	1387	)
[767]	1388	ENDDO
	1389	ENDDO
	1390	ENDIF
	1391
	1392	#if defined( __parallel )
[4648]	1393	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1), 2, MPI_REAL, &
	1394	MPI_SUM, comm2d, ierr )
	1395	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), 2, MPI_REAL, MPI_SUM, &
	1396	comm2d, ierr )
[767]	1397
	1398	#else
	1399	volume_flow_initial = volume_flow_initial_l
	1400	volume_flow_area = volume_flow_area_l
[4648]	1401	#endif
[767]	1402
	1403	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1404
[1340]	1405	volume_flow_initial_l = 0.0_wp
	1406	volume_flow_area_l = 0.0_wp
[767]	1407
	1408	IF ( nxr == nx ) THEN
	1409	DO j = nys, nyn
[2232]	1410	DO k = nzb+1, nzt
[4648]	1411	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1412	hom_sum(k,1,0) * dzw(k) &
	1413	* MERGE( 1.0_wp, 0.0_wp, &
	1414	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1415	)
	1416	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1417	* MERGE( 1.0_wp, 0.0_wp, &
	1418	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1419	)
[667]	1420	ENDDO
	1421	ENDDO
	1422	ENDIF
[4648]	1423
[667]	1424	IF ( nyn == ny ) THEN
	1425	DO i = nxl, nxr
[2232]	1426	DO k = nzb+1, nzt
[4648]	1427	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1428	hom_sum(k,2,0) * dzw(k) &
	1429	* MERGE( 1.0_wp, 0.0_wp, &
	1430	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1431	)
	1432	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1433	* MERGE( 1.0_wp, 0.0_wp, &
	1434	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1435	)
[667]	1436	ENDDO
	1437	ENDDO
	1438	ENDIF
	1439
[732]	1440	#if defined( __parallel )
[4648]	1441	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1), 2, MPI_REAL, &
	1442	MPI_SUM, comm2d, ierr )
	1443	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), 2, MPI_REAL, MPI_SUM, &
	1444	comm2d, ierr )
[732]	1445
	1446	#else
	1447	volume_flow_initial = volume_flow_initial_l
	1448	volume_flow_area = volume_flow_area_l
[4648]	1449	#endif
[732]	1450
[667]	1451	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	1452
[1340]	1453	volume_flow_initial_l = 0.0_wp
	1454	volume_flow_area_l = 0.0_wp
[732]	1455
[667]	1456	IF ( nxr == nx ) THEN
	1457	DO j = nys, nyn
[2232]	1458	DO k = nzb+1, nzt
[4648]	1459	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1460	u(k,j,nx) * dzw(k) &
	1461	* MERGE( 1.0_wp, 0.0_wp, &
	1462	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1463	)
	1464	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1465	* MERGE( 1.0_wp, 0.0_wp, &
	1466	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1467	)
[667]	1468	ENDDO
	1469	ENDDO
	1470	ENDIF
[4648]	1471
[667]	1472	IF ( nyn == ny ) THEN
	1473	DO i = nxl, nxr
[2232]	1474	DO k = nzb+1, nzt
[4648]	1475	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1476	v(k,ny,i) * dzw(k) &
	1477	* MERGE( 1.0_wp, 0.0_wp, &
	1478	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1479	)
	1480	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1481	* MERGE( 1.0_wp, 0.0_wp, &
	1482	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1483	)
[667]	1484	ENDDO
	1485	ENDDO
	1486	ENDIF
	1487
	1488	#if defined( __parallel )
[4648]	1489	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1), 2, MPI_REAL, &
	1490	MPI_SUM, comm2d, ierr )
	1491	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), 2, MPI_REAL, MPI_SUM, &
	1492	comm2d, ierr )
[667]	1493
	1494	#else
[732]	1495	volume_flow_initial = volume_flow_initial_l
	1496	volume_flow_area = volume_flow_area_l
[4648]	1497	#endif
[667]	1498
[732]	1499	ENDIF
	1500
[151]	1501	!
[4648]	1502	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated from u\|v_bulk instead
[680]	1503	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
	1504	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
	1505	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
	1506	ENDIF
[667]	1507
[680]	1508	ENDIF
[2232]	1509	!
[4648]	1510	!-- In the following, surface properties can be further initialized with input from static driver
	1511	!-- file.
	1512	!-- At the moment this affects only default surfaces. For example, roughness length or sensible /
	1513	!-- latent heat fluxes can be initialized heterogeneously for default surfaces. Therefore, a generic
	1514	!-- routine from netcdf_data_input_mod is called to read a 2D array.
[4150]	1515	IF ( input_pids_static ) THEN
	1516	!
[4151]	1517	!-- Allocate memory for possible static input
	1518	ALLOCATE( tmp_2d%var(nys:nyn,nxl:nxr) )
	1519	tmp_2d%var = 0.0_wp
	1520	!
[4150]	1521	!-- Open the static input file
[4151]	1522	#if defined( __netcdf )
[4648]	1523	CALL open_read_file( TRIM( input_file_static ) // &
	1524	TRIM( coupling_char ), pids_id )
	1525
[4186]	1526	CALL inquire_num_variables( pids_id, num_var_pids )
[4150]	1527	!
	1528	!-- Allocate memory to store variable names and read them
[4186]	1529	ALLOCATE( vars_pids(1:num_var_pids) )
	1530	CALL inquire_variable_names( pids_id, vars_pids )
[4150]	1531	!
[4648]	1532	!-- Input roughness length.
[4186]	1533	IF ( check_existence( vars_pids, 'z0' ) ) THEN
[4150]	1534	!
	1535	!-- Read _FillValue attribute
[4648]	1536	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, .FALSE., 'z0' )
	1537	!
	1538	!-- Read variable
	1539	CALL get_variable( pids_id, 'z0', tmp_2d%var, nxl, nxr, nys, nyn )
	1540	!
	1541	!-- Initialize roughness length. Note, z0 will be only initialized at default-type surfaces.
	1542	!-- At natural or urban z0 is implicitly initialized by the respective parameter lists.
	1543	!-- Initialize horizontal surface elements.
	1544	CALL init_single_surface_properties( surf_def_h(0)%z0, tmp_2d%var, surf_def_h(0)%ns, &
	1545	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
	1546	!
	1547	!-- Initialize roughness also at vertical surface elements.
	1548	!-- Note, the actual 2D input arrays are only defined on the subdomain. Therefore, pass the
	1549	!-- index arrays with their respective offset values.
	1550	DO l = 0, 3
	1551	CALL init_single_surface_properties( surf_def_v(l)%z0, tmp_2d%var, surf_def_v(l)%ns, &
	1552	tmp_2d%fill, surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1553	surf_def_v(l)%j+surf_def_v(l)%joff )
[4150]	1554	ENDDO
[4648]	1555
[4150]	1556	ENDIF
	1557	!
[4648]	1558	!-- Input surface sensible heat flux.
[4514]	1559	IF ( check_existence( vars_pids, 'shf' ) ) THEN
	1560	!
	1561	!-- Read _FillValue attribute
[4648]	1562	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, .FALSE., 'shf' )
[4514]	1563	!
	1564	!-- Read variable
[4648]	1565	CALL get_variable( pids_id, 'shf', tmp_2d%var, nxl, nxr, nys, nyn )
[4514]	1566	!
[4648]	1567	!-- Initialize heat flux. Note, shf will be only initialized at default-type surfaces. At
	1568	!-- natural or urban shf is implicitly initialized by the respective parameter lists.
[4514]	1569	!-- Initialize horizontal surface elements.
[4648]	1570	CALL init_single_surface_properties( surf_def_h(0)%shf, tmp_2d%var, surf_def_h(0)%ns, &
	1571	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
[4514]	1572	!
	1573	!-- Initialize heat flux also at vertical surface elements.
[4648]	1574	!-- Note, the actual 2D input arrays are only defined on the subdomain. Therefore, pass the
	1575	!-- index arrays with their respective offset values.
[4514]	1576	DO l = 0, 3
[4648]	1577	CALL init_single_surface_properties( surf_def_v(l)%shf, tmp_2d%var, surf_def_v(l)%ns, &
	1578	tmp_2d%fill, surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1579	surf_def_v(l)%j+surf_def_v(l)%joff )
[4514]	1580	ENDDO
	1581
	1582	ENDIF
	1583	!
[4648]	1584	!-- Input surface sensible heat flux.
[4514]	1585	IF ( check_existence( vars_pids, 'qsws' ) ) THEN
	1586	!
	1587	!-- Read _FillValue attribute
	1588	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, &
	1589	.FALSE., 'qsws' )
	1590	!
	1591	!-- Read variable
	1592	CALL get_variable( pids_id, 'qsws', tmp_2d%var, &
	1593	nxl, nxr, nys, nyn )
	1594	!
[4648]	1595	!-- Initialize latent heat flux. Note, qsws will be only initialized at default-type surfaces.
	1596	!-- At natural or urban qsws is implicitly initialized by the respective parameter lists.
[4514]	1597	!-- Initialize horizontal surface elements.
[4648]	1598	CALL init_single_surface_properties( surf_def_h(0)%qsws, tmp_2d%var, surf_def_h(0)%ns, &
	1599	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
[4514]	1600	!
	1601	!-- Initialize latent heat flux also at vertical surface elements.
[4648]	1602	!-- Note, the actual 2D input arrays are only defined on the subdomain. Therefore, pass the
	1603	!-- index arrays with their respective offset values.
[4514]	1604	DO l = 0, 3
[4648]	1605	CALL init_single_surface_properties( surf_def_v(l)%qsws, tmp_2d%var, surf_def_v(l)%ns,&
	1606	tmp_2d%fill, surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1607	surf_def_v(l)%j+surf_def_v(l)%joff )
[4514]	1608	ENDDO
	1609
	1610	ENDIF
	1611	!
[4648]	1612	!-- Additional variables, can be initialized the
[4150]	1613	!-- same way.
[4514]	1614
[4150]	1615	!
[4187]	1616	!-- Finally, close the input file and deallocate temporary arrays
	1617	DEALLOCATE( vars_pids )
[4648]	1618
[4186]	1619	CALL close_input_file( pids_id )
[4151]	1620	#endif
	1621	DEALLOCATE( tmp_2d%var )
[4150]	1622	ENDIF
	1623	!
[4648]	1624	!-- Finally, if random_heatflux is set, disturb shf at horizontal surfaces. Actually, this should be
	1625	!-- done in surface_mod, where all other initializations of surface quantities are done. However,
	1626	!-- this would create a ring dependency, hence, it is done here. Maybe delete disturb_heatflux and
	1627	!-- tranfer the respective code directly into the initialization in surface_mod.
	1628	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[2232]	1629	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[4648]	1630
	1631	IF ( use_surface_fluxes .AND. constant_heatflux .AND. random_heatflux ) THEN
[2232]	1632	IF ( surf_def_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_def_h(0) )
	1633	IF ( surf_lsm_h%ns >= 1 ) CALL disturb_heatflux( surf_lsm_h )
	1634	IF ( surf_usm_h%ns >= 1 ) CALL disturb_heatflux( surf_usm_h )
	1635	ENDIF
	1636	ENDIF
[680]	1637
[787]	1638	!
[4648]	1639	!-- Compute total sum of grid points and the mean surface level height for each statistic region.
	1640	!-- These are mainly used for horizontal averaging of turbulence statistics.
	1641	!-- ngp_2dh: number of grid points of a horizontal cross section through the respective statistic
	1642	!-- region
[3747]	1643	!-- ngp_3d: number of grid points of the respective statistic region
[2696]	1644	ngp_2dh_outer_l = 0
	1645	ngp_2dh_outer = 0
	1646	ngp_2dh_s_inner_l = 0
	1647	ngp_2dh_s_inner = 0
	1648	ngp_2dh_l = 0
	1649	ngp_2dh = 0
	1650	ngp_3d_inner_l = 0.0_wp
	1651	ngp_3d_inner = 0
	1652	ngp_3d = 0
	1653	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
	1654
	1655	mean_surface_level_height = 0.0_wp
	1656	mean_surface_level_height_l = 0.0_wp
	1657	!
	1658	!-- To do: New concept for these non-topography grid points!
	1659	DO sr = 0, statistic_regions
	1660	DO i = nxl, nxr
	1661	DO j = nys, nyn
	1662	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
	1663	!
	1664	!-- All xy-grid points
	1665	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1666	!
[4648]	1667	!-- Determine mean surface-level height. In case of downward-facing walls are present,
	1668	!-- more than one surface level exist.
	1669	!-- In this case, use the lowest surface-level height.
	1670	IF ( surf_def_h(0)%start_index(j,i) <= surf_def_h(0)%end_index(j,i) ) THEN
[2696]	1671	m = surf_def_h(0)%start_index(j,i)
	1672	k = surf_def_h(0)%k(m)
[4648]	1673	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) + zw(k-1)
[2696]	1674	ENDIF
[4648]	1675	IF ( surf_lsm_h%start_index(j,i) <= surf_lsm_h%end_index(j,i) ) THEN
[2696]	1676	m = surf_lsm_h%start_index(j,i)
	1677	k = surf_lsm_h%k(m)
[4648]	1678	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) + zw(k-1)
[2696]	1679	ENDIF
[4648]	1680	IF ( surf_usm_h%start_index(j,i) <= surf_usm_h%end_index(j,i) ) THEN
[2696]	1681	m = surf_usm_h%start_index(j,i)
	1682	k = surf_usm_h%k(m)
[4648]	1683	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) + zw(k-1)
[2696]	1684	ENDIF
	1685
	1686	k_surf = k - 1
	1687
	1688	DO k = nzb, nzt+1
	1689	!
	1690	!-- xy-grid points above topography
[4648]	1691	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + &
	1692	MERGE( 1, 0, BTEST( wall_flags_total_0(k,j,i), 24 ) )
[2696]	1693
[4648]	1694	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + &
	1695	MERGE( 1, 0, BTEST( wall_flags_total_0(k,j,i), 22 ) )
[2696]	1696
	1697	ENDDO
	1698	!
	1699	!-- All grid points of the total domain above topography
	1700	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + ( nz - k_surf + 2 )
	1701
	1702
	1703
	1704	ENDIF
	1705	ENDDO
	1706	ENDDO
	1707	ENDDO
[3747]	1708
[2696]	1709	sr = statistic_regions + 1
	1710	#if defined( __parallel )
	1711	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1712	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
	1713	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1714	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, MPI_INTEGER, MPI_SUM, &
[2696]	1715	comm2d, ierr )
	1716	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1717	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), (nz+2)*sr, MPI_INTEGER, &
	1718	MPI_SUM, comm2d, ierr )
[2696]	1719	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1720	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, MPI_SUM, comm2d, &
	1721	ierr )
[2696]	1722	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
	1723	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1724	CALL MPI_ALLREDUCE( mean_surface_level_height_l(0), mean_surface_level_height(0), sr, MPI_REAL,&
[2696]	1725	MPI_SUM, comm2d, ierr )
	1726	mean_surface_level_height = mean_surface_level_height / REAL( ngp_2dh )
	1727	#else
	1728	ngp_2dh = ngp_2dh_l
	1729	ngp_2dh_outer = ngp_2dh_outer_l
	1730	ngp_2dh_s_inner = ngp_2dh_s_inner_l
	1731	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
	1732	mean_surface_level_height = mean_surface_level_height_l / REAL( ngp_2dh_l )
	1733	#endif
	1734
[4648]	1735	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
[2696]	1736	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
	1737
	1738	!
[4648]	1739	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics, buoyancy, etc. A
	1740	!-- zero value will occur for cases where all grid points of the respective subdomain lie below the
	1741	!-- surface topography
	1742	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
	1743	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), ngp_3d_inner(:) )
	1744	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
[2696]	1745
[4648]	1746	DEALLOCATE( mean_surface_level_height_l, ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, &
	1747	ngp_3d_inner_tmp )
[4548]	1748
[2696]	1749	!
[4648]	1750	!-- Initializae 3D offline nesting in COSMO model and read data from
[3347]	1751	!-- external NetCDF file.
	1752	IF ( nesting_offline ) CALL nesting_offl_init
	1753	!
[787]	1754	!-- Initialize quantities for special advections schemes
	1755	CALL init_advec
[680]	1756
[667]	1757	!
[680]	1758	!-- Impose random perturbation on the horizontal velocity field and then
	1759	!-- remove the divergences from the velocity field at the initial stage
[4648]	1760	IF ( create_disturbances .AND. disturbance_energy_limit /= 0.0_wp .AND. &
	1761	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[680]	1762	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
	1763
[4648]	1764	IF ( debug_output ) THEN
	1765	CALL debug_message( 'creating disturbances + applying pressure solver', 'start' )
	1766	ENDIF
[3849]	1767	!
	1768	!-- Needed for both disturb_field and pres
	1769	!$ACC DATA &
	1770	!$ACC CREATE(tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1771	!$ACC COPY(u(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1772	!$ACC COPY(v(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
	1773
[2232]	1774	CALL disturb_field( 'u', tend, u )
	1775	CALL disturb_field( 'v', tend, v )
[1384]	1776
[3849]	1777	!$ACC DATA &
	1778	!$ACC CREATE(d(nzb+1:nzt,nys:nyn,nxl:nxr)) &
	1779	!$ACC COPY(w(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1780	!$ACC COPY(p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1781	!$ACC COPYIN(rho_air(nzb:nzt+1), rho_air_zw(nzb:nzt+1)) &
	1782	!$ACC COPYIN(ddzu(1:nzt+1), ddzw(1:nzt+1)) &
[4346]	1783	!$ACC COPYIN(wall_flags_total_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
[3849]	1784	!$ACC COPYIN(bc_h(0:1)) &
	1785	!$ACC COPYIN(bc_h(0)%i(1:bc_h(0)%ns)) &
	1786	!$ACC COPYIN(bc_h(0)%j(1:bc_h(0)%ns)) &
	1787	!$ACC COPYIN(bc_h(0)%k(1:bc_h(0)%ns)) &
	1788	!$ACC COPYIN(bc_h(1)%i(1:bc_h(1)%ns)) &
	1789	!$ACC COPYIN(bc_h(1)%j(1:bc_h(1)%ns)) &
	1790	!$ACC COPYIN(bc_h(1)%k(1:bc_h(1)%ns))
	1791
[680]	1792	n_sor = nsor_ini
	1793	CALL pres
	1794	n_sor = nsor
[1384]	1795
[3849]	1796	!$ACC END DATA
	1797	!$ACC END DATA
	1798
[4648]	1799	IF ( debug_output ) THEN
	1800	CALL debug_message( 'creating disturbances + applying pressure solver', 'end' )
	1801	ENDIF
[3987]	1802
[680]	1803	ENDIF
	1804
[3294]	1805	IF ( .NOT. ocean_mode ) THEN
[3274]	1806
	1807	ALLOCATE( hyp(nzb:nzt+1) )
	1808	ALLOCATE( d_exner(nzb:nzt+1) )
	1809	ALLOCATE( exner(nzb:nzt+1) )
	1810	ALLOCATE( hyrho(nzb:nzt+1) )
[1849]	1811	!
[3274]	1812	!-- Check temperature in case of too large domain height
	1813	DO k = nzb, nzt+1
[4648]	1814	IF ( ( pt_surface * exner_function( surface_pressure * 100.0_wp ) - g/c_p * zu(k) ) &
	1815	< 0.0_wp ) THEN
	1816	WRITE( message_string, * ) 'absolute temperature < 0.0 at zu(', k, ') = ', zu(k)
[3685]	1817	CALL message( 'init_3d_model', 'PA0142', 1, 2, 0, 6, 0 )
[3274]	1818	ENDIF
	1819	ENDDO
	1820
	1821	!
	1822	!-- Calculate vertical profile of the hydrostatic pressure (hyp)
[4648]	1823	hyp = barometric_formula( zu, pt_surface * exner_function( surface_pressure * 100.0_wp ),&
	1824	surface_pressure * 100.0_wp )
	1825	d_exner = exner_function_invers( hyp )
	1826	exner = 1.0_wp / exner_function_invers( hyp )
	1827	hyrho = ideal_gas_law_rho_pt( hyp, pt_init )
[3274]	1828	!
	1829	!-- Compute reference density
[4648]	1830	rho_surface = ideal_gas_law_rho( surface_pressure * 100.0_wp, &
	1831	pt_surface * exner_function( surface_pressure * 100.0_wp ) )
[3274]	1832
[96]	1833	ENDIF
[1]	1834
	1835	!
	1836	!-- If required, initialize particles
[3159]	1837	IF ( agents_active ) CALL mas_init
	1838	!
[3937]	1839	!-- Initialization of synthetic turbulence generator
	1840	IF ( use_syn_turb_gen ) CALL stg_init
[2696]	1841	!
[3685]	1842	!-- Initializing actions for all other modules
	1843	CALL module_interface_init
[2696]	1844	!
[4648]	1845	!-- Initialize surface layer (done after LSM as roughness length are required for initialization
[3685]	1846	IF ( constant_flux_layer ) CALL init_surface_layer_fluxes
[2977]	1847	!
[3421]	1848	!-- Initialize surface data output
[3685]	1849	IF ( surface_output ) CALL surface_data_output_init
[3472]	1850	!
[4648]	1851	!-- Initialize the ws-scheme.
	1852	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
[3711]	1853	!
	1854	!-- Perform post-initializing checks for all other modules
	1855	CALL module_interface_init_checks
[1]	1856
	1857	!
[4648]	1858	!-- Initialize surface forcing corresponding to large-scale forcing. Therein,
[4548]	1859	!-- initialize heat-fluxes, etc. via datatype. Revise it later!
[4648]	1860	IF ( large_scale_forcing .AND. lsf_surf ) THEN
[4548]	1861	IF ( use_surface_fluxes .AND. constant_heatflux ) THEN
[4648]	1862	CALL ls_forcing_surf( simulated_time )
[4548]	1863	ENDIF
	1864	ENDIF
	1865	!
[4648]	1866	!-- Setting weighting factors for calculation of perturbation pressure and turbulent quantities from
	1867	!-- the RK substeps.
	1868	IF ( TRIM( timestep_scheme ) == 'runge-kutta-3' ) THEN ! for RK3-method
[709]	1869
[1322]	1870	weight_substep(1) = 1._wp/6._wp
	1871	weight_substep(2) = 3._wp/10._wp
	1872	weight_substep(3) = 8._wp/15._wp
[709]	1873
[1322]	1874	weight_pres(1) = 1._wp/3._wp
	1875	weight_pres(2) = 5._wp/12._wp
	1876	weight_pres(3) = 1._wp/4._wp
[709]	1877
[4648]	1878	ELSEIF ( TRIM( timestep_scheme ) == 'runge-kutta-2' ) THEN ! for RK2-method
[709]	1879
[1322]	1880	weight_substep(1) = 1._wp/2._wp
	1881	weight_substep(2) = 1._wp/2._wp
[4648]	1882
[1322]	1883	weight_pres(1) = 1._wp/2._wp
[4648]	1884	weight_pres(2) = 1._wp/2._wp
[709]	1885
[1001]	1886	ELSE ! for Euler-method
[709]	1887
[4648]	1888	weight_substep(1) = 1.0_wp
	1889	weight_pres(1) = 1.0_wp
[709]	1890
[673]	1891	ENDIF
	1892
	1893	!
[1]	1894	!-- Initialize Rayleigh damping factors
[1340]	1895	rdf = 0.0_wp
	1896	rdf_sc = 0.0_wp
	1897	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
[3294]	1898
	1899	IF ( .NOT. ocean_mode ) THEN
[108]	1900	DO k = nzb+1, nzt
	1901	IF ( zu(k) >= rayleigh_damping_height ) THEN
[4648]	1902	rdf(k) = rayleigh_damping_factor * &
	1903	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
	1904	/ ( zu(nzt) - rayleigh_damping_height ) ) &
	1905	)**2
[108]	1906	ENDIF
	1907	ENDDO
	1908	ELSE
[3294]	1909	!
[4648]	1910	!-- In ocean mode, rayleigh damping is applied in the lower part of the model domain
[108]	1911	DO k = nzt, nzb+1, -1
	1912	IF ( zu(k) <= rayleigh_damping_height ) THEN
[4648]	1913	rdf(k) = rayleigh_damping_factor * &
	1914	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
	1915	/ ( rayleigh_damping_height - zu(nzb+1) ) ) &
	1916	)**2
[108]	1917	ENDIF
	1918	ENDDO
	1919	ENDIF
[3294]	1920
[1]	1921	ENDIF
[785]	1922	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
[1]	1923
	1924	!
[4648]	1925	!-- Initialize the starting level and the vertical smoothing factor used for the external pressure
	1926	!-- gradient
[1340]	1927	dp_smooth_factor = 1.0_wp
[240]	1928	IF ( dp_external ) THEN
	1929	!
[4648]	1930	!-- Set the starting level dp_level_ind_b only if it has not been set before (e.g. in init_grid).
[240]	1931	IF ( dp_level_ind_b == 0 ) THEN
	1932	ind_array = MINLOC( ABS( dp_level_b - zu ) )
[4648]	1933	dp_level_ind_b = ind_array(1) - 1 + nzb
[240]	1934	! MINLOC uses lower array bound 1
	1935	ENDIF
	1936	IF ( dp_smooth ) THEN
[1340]	1937	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
[240]	1938	DO k = dp_level_ind_b+1, nzt
[4648]	1939	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
	1940	( REAL( k - dp_level_ind_b, KIND=wp ) / &
	1941	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
[240]	1942	ENDDO
	1943	ENDIF
	1944	ENDIF
	1945
	1946	!
[4648]	1947	!-- Initialize damping zone for the potential temperature in case of non-cyclic lateral boundaries.
	1948	!-- The damping zone has the maximum value at the inflow boundary and decreases to zero at
	1949	!-- pt_damping_width.
[1340]	1950	ptdf_x = 0.0_wp
	1951	ptdf_y = 0.0_wp
[1159]	1952	IF ( bc_lr_dirrad ) THEN
[996]	1953	DO i = nxl, nxr
[978]	1954	IF ( ( i * dx ) < pt_damping_width ) THEN
[4648]	1955	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
	1956	REAL( pt_damping_width - i * dx, KIND=wp ) / &
	1957	REAL( pt_damping_width, KIND=wp ) ) )**2
	1958	ENDIF
[73]	1959	ENDDO
[1159]	1960	ELSEIF ( bc_lr_raddir ) THEN
[996]	1961	DO i = nxl, nxr
[978]	1962	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
[4648]	1963	ptdf_x(i) = pt_damping_factor * SIN( pi * 0.5_wp * &
	1964	( ( i - nx ) * dx + pt_damping_width ) / &
	1965	REAL( pt_damping_width, KIND=wp ) )**2
[73]	1966	ENDIF
[4648]	1967	ENDDO
[1159]	1968	ELSEIF ( bc_ns_dirrad ) THEN
[996]	1969	DO j = nys, nyn
[978]	1970	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
[4648]	1971	ptdf_y(j) = pt_damping_factor * SIN( pi * 0.5_wp * &
	1972	( ( j - ny ) * dy + pt_damping_width ) / &
	1973	REAL( pt_damping_width, KIND=wp ) )**2
[1]	1974	ENDIF
[4648]	1975	ENDDO
[1159]	1976	ELSEIF ( bc_ns_raddir ) THEN
[996]	1977	DO j = nys, nyn
[978]	1978	IF ( ( j * dy ) < pt_damping_width ) THEN
[4648]	1979	ptdf_y(j) = pt_damping_factor * SIN( pi * 0.5_wp * &
	1980	( pt_damping_width - j * dy ) / &
	1981	REAL( pt_damping_width, KIND=wp ) )**2
[1]	1982	ENDIF
[73]	1983	ENDDO
[1]	1984	ENDIF
[51]	1985
[1]	1986	!
[4648]	1987	!-- Input binary data file is not needed anymore. This line must be placed after call of user_init!
[1]	1988	CALL close_file( 13 )
[2934]	1989	!
[4648]	1990	!-- In case of nesting, put an barrier to assure that all parent and child domains finished
	1991	!-- initialization.
[2934]	1992	#if defined( __parallel )
	1993	IF ( nested_run ) CALL MPI_BARRIER( MPI_COMM_WORLD, ierr )
	1994	#endif
[1]	1995
[2934]	1996
[3987]	1997	CALL location_message( 'model initialization', 'finished' )
[1]	1998
	1999	END SUBROUTINE init_3d_model

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source: palm/trunk/SOURCE/init_3d_model.f90 @ 4651

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