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init_3d_model.f90 @ 4811

Last change on this file since 4811 was 4791, checked in by suehring, 4 years ago

Add possibility to initialize surface flux of passive scalar via static driver

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/palm/branches/chemistry/SOURCE/init_3d_model.f90	2047-3190,3218-3297
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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 4791 2020-11-23 11:44:26Z maronga $
[4791]	26	! Add possibility to initialize surface flux of passive scalar via static driver
	27	!
	28	! 4783 2020-11-13 13:58:45Z raasch
[4783]	29	! bugfix for reading restart data with MPI-I/O (does not work with blockwise I/O)
	30	!
	31	! 4680 2020-09-16 10:20:34Z gronemeier
[4680]	32	! Add option to fix date or time of the simulation
	33	!
	34	! 4671 2020-09-09 20:27:58Z pavelkrc
[4671]	35	! Implementation of downward facing USM and LSM surfaces
	36	!
	37	! 4648 2020-08-25 07:52:08Z raasch
[4648]	38	! file re-formatted to follow the PALM coding standard
	39	!
	40	! 4548 2020-05-28 19:36:45Z suehring
[4548]	41	! Bugfix, move call for lsf_forcing_surf after lsf_init is called
[4648]	42	!
[4548]	43	! 4514 2020-04-30 16:29:59Z suehring
[4648]	44	! Add possibility to initialize surface sensible and latent heat fluxes via a static driver.
	45	!
[4514]	46	! 4493 2020-04-10 09:49:43Z pavelkrc
[4648]	47	! Overwrite u_init, v_init, pt_init, q_init and s_init with hom for all cyclic_fill-cases, not only
	48	! for turbulent_inflow = .TRUE.
	49	!
[4365]	50	! 4360 2020-01-07 11:25:50Z suehring
[4648]	51	! Introduction of wall_flags_total_0, which currently sets bits based on static topography
	52	! information used in wall_flags_static_0
	53	!
[4346]	54	! 4329 2019-12-10 15:46:36Z motisi
[4329]	55	! Renamed wall_flags_0 to wall_flags_static_0
[4648]	56	!
[4329]	57	! 4286 2019-10-30 16:01:14Z resler
[4227]	58	! implement new palm_date_time_mod
[4648]	59	!
[4227]	60	! 4223 2019-09-10 09:20:47Z gronemeier
[4648]	61	! Deallocate temporary string array since it may be re-used to read different input data in other
	62	! modules
	63	!
[4187]	64	! 4186 2019-08-23 16:06:14Z suehring
[4648]	65	! Design change, use variables defined in netcdf_data_input_mod to read netcd variables rather than
	66	! define local ones.
	67	!
[4186]	68	! 4185 2019-08-23 13:49:38Z oliver.maas
[4185]	69	! For initializing_actions = ' cyclic_fill':
[4648]	70	! Overwrite u_init, v_init, pt_init, q_init and s_init with the (temporally) and horizontally
	71	! averaged vertical profiles from the end of the prerun, because these profiles shall be used as the
	72	! basic state for the rayleigh damping and the pt_damping.
	73	!
[4185]	74	! 4182 2019-08-22 15:20:23Z scharf
[4182]	75	! Corrected "Former revisions" section
[4648]	76	!
[4182]	77	! 4168 2019-08-16 13:50:17Z suehring
[4168]	78	! Replace function get_topography_top_index by topo_top_ind
[4648]	79	!
[4168]	80	! 4151 2019-08-09 08:24:30Z suehring
[4151]	81	! Add netcdf directive around input calls (fix for last commit)
[4648]	82	!
[4151]	83	! 4150 2019-08-08 20:00:47Z suehring
[4648]	84	! Input of additional surface variables independent on land- or urban-surface model
	85	!
[4150]	86	! 4131 2019-08-02 11:06:18Z monakurppa
[4131]	87	! Allocate sums and sums_l to allow profile output for salsa variables.
[4648]	88	!
[4131]	89	! 4130 2019-08-01 13:04:13Z suehring
[4648]	90	! Effectively reduce 3D initialization to 1D initial profiles. This is because 3D initialization
	91	! produces structures in the w-component that are correlated with the processor grid for some
	92	! unknown reason
	93	!
[4130]	94	! 4090 2019-07-11 15:06:47Z Giersch
[4090]	95	! Unused variables removed
[4648]	96	!
[4090]	97	! 4088 2019-07-11 13:57:56Z Giersch
[4088]	98	! Pressure and density profile calculations revised using basic functions
[4648]	99	!
[4088]	100	! 4048 2019-06-21 21:00:21Z knoop
[4028]	101	! Further modularization of particle code components
[4648]	102	!
[4028]	103	! 4017 2019-06-06 12:16:46Z schwenkel
[4648]	104	! Convert most location messages to debug messages to reduce output in job logfile to a minimum
	105	!
[3939]	106	! unused variable removed
[4648]	107	!
[3939]	108	! 3937 2019-04-29 15:09:07Z suehring
[4648]	109	! Move initialization of synthetic turbulence generator behind initialization of offline nesting.
	110	! Remove call for stg_adjust, as this is now already done in stg_init.
	111	!
[3937]	112	! 3900 2019-04-16 15:17:43Z suehring
[3900]	113	! Fix problem with LOD = 2 initialization
[4648]	114	!
[3900]	115	! 3885 2019-04-11 11:29:34Z kanani
[4648]	116	! Changes related to global restructuring of location messages and introduction of additional debug
	117	! messages
	118	!
[3885]	119	! 3849 2019-04-01 16:35:16Z knoop
[3747]	120	! Move initialization of rmask before initializing user_init_arrays
[4648]	121	!
[3747]	122	! 3711 2019-01-31 13:44:26Z knoop
[3711]	123	! Introduced module_interface_init_checks for post-init checks in modules
[4648]	124	!
[3711]	125	! 3700 2019-01-26 17:03:42Z knoop
[3685]	126	! Some interface calls moved to module_interface + cleanup
[4648]	127	!
[3685]	128	! 3648 2019-01-02 16:35:46Z suehring
[3648]	129	! Rename subroutines for surface-data output
[3569]	130	!
[4182]	131	! Revision 1.1 1998/03/09 16:22:22 raasch
	132	! Initial revision
	133	!
	134	!
[1]	135	! Description:
	136	! ------------
[1682]	137	!> Allocation of arrays and initialization of the 3D model via
	138	!> a) pre-run the 1D model
	139	!> or
	140	!> b) pre-set constant linear profiles
	141	!> or
	142	!> c) read values of a previous run
[4648]	143	!--------------------------------------------------------------------------------------------------!
[1682]	144	SUBROUTINE init_3d_model
[1]	145
[3298]	146
[667]	147	USE advec_ws
[1320]	148
[1]	149	USE arrays_3d
[1849]	150
[4648]	151	USE basic_constants_and_equations_mod, &
	152	ONLY: barometric_formula, c_p, exner_function, exner_function_invers, g, &
	153	ideal_gas_law_rho, ideal_gas_law_rho_pt, l_v, pi
[3274]	154
[4648]	155	USE bulk_cloud_model_mod, &
[3685]	156	ONLY: bulk_cloud_model
[3274]	157
[4648]	158	USE chem_modules, &
[3685]	159	ONLY: max_pr_cs ! ToDo: this dependency needs to be removed cause it is ugly #new_dom
[3298]	160
[1]	161	USE control_parameters
[3298]	162
[4648]	163	USE grid_variables, &
[2037]	164	ONLY: dx, dy, ddx2_mg, ddy2_mg
[2817]	165
[1]	166	USE indices
[3469]	167
[1320]	168	USE kinds
[4648]	169
	170	USE lsf_nudging_mod, &
[3685]	171	ONLY: ls_forcing_surf
[1849]	172
[4648]	173	USE model_1d_mod, &
[3241]	174	ONLY: init_1d_model, l1d, u1d, v1d
[2338]	175
[4648]	176	USE module_interface, &
	177	ONLY: module_interface_init_arrays, &
	178	module_interface_init, &
[3711]	179	module_interface_init_checks
[3685]	180
[4648]	181	USE multi_agent_system_mod, &
[3159]	182	ONLY: agents_active, mas_init
	183
[4648]	184	USE netcdf_interface, &
[3700]	185	ONLY: dots_max
[2696]	186
[4648]	187	USE netcdf_data_input_mod, &
	188	ONLY: char_fill, &
	189	check_existence, &
	190	close_input_file, &
	191	get_attribute, &
	192	get_variable, &
	193	init_3d, &
	194	input_pids_static, &
	195	inquire_num_variables, &
	196	inquire_variable_names, &
	197	input_file_static, &
	198	netcdf_data_input_init_3d, &
	199	num_var_pids, &
	200	open_read_file, &
	201	pids_id, &
	202	real_2d, &
[4186]	203	vars_pids
[4648]	204
	205	USE nesting_offl_mod, &
[3347]	206	ONLY: nesting_offl_init
[3294]	207
[4648]	208	USE palm_date_time_mod, &
[4680]	209	ONLY: init_date_time
[4227]	210
[1]	211	USE pegrid
[3298]	212
[3524]	213	#if defined( __parallel )
[4648]	214	USE pmc_interface, &
[2934]	215	ONLY: nested_run
[3524]	216	#endif
[2934]	217
[4648]	218	USE random_function_mod
[3685]	219
[4648]	220	USE random_generator_parallel, &
[2172]	221	ONLY: init_parallel_random_generator
[3685]	222
[4648]	223	USE read_restart_data_mod, &
	224	ONLY: rrd_local, rrd_read_parts_of_global
[3685]	225
[4648]	226	USE statistics, &
	227	ONLY: hom, hom_sum, mean_surface_level_height, pr_palm, rmask, statistic_regions, sums, &
	228	sums_divnew_l, sums_divold_l, sums_l, sums_l_l, sums_wsts_bc_l, ts_value, &
[1833]	229	weight_pres, weight_substep
[2259]	230
[4648]	231	USE synthetic_turbulence_generator_mod, &
[3939]	232	ONLY: stg_init, use_syn_turb_gen
[3685]	233
[4648]	234	USE surface_layer_fluxes_mod, &
[1691]	235	ONLY: init_surface_layer_fluxes
[2232]	236
[4648]	237	USE surface_mod, &
	238	ONLY : init_single_surface_properties, &
	239	init_surface_arrays, &
	240	init_surfaces, &
	241	surf_def_h, &
	242	surf_def_v, &
	243	surf_lsm_h, &
[4168]	244	surf_usm_h
[3685]	245
[3849]	246	#if defined( _OPENACC )
[4648]	247	USE surface_mod, &
[3849]	248	ONLY : bc_h
	249	#endif
	250
[4648]	251	USE surface_data_output_mod, &
[3648]	252	ONLY: surface_data_output_init
[3685]	253
[2007]	254	USE transpose_indices
[1]	255
[4648]	256
[1]	257	IMPLICIT NONE
[4648]	258
[4150]	259	INTEGER(iwp) :: i !< grid index in x direction
	260	INTEGER(iwp) :: ind_array(1) !< dummy used to determine start index for external pressure forcing
	261	INTEGER(iwp) :: j !< grid index in y direction
	262	INTEGER(iwp) :: k !< grid index in z direction
	263	INTEGER(iwp) :: k_surf !< surface level index
[4648]	264	INTEGER(iwp) :: l !< running index over surface orientation
	265	INTEGER(iwp) :: m !< index of surface element in surface data type
[4150]	266	INTEGER(iwp) :: nz_u_shift !< topography-top index on u-grid, used to vertically shift initial profiles
	267	INTEGER(iwp) :: nz_v_shift !< topography-top index on v-grid, used to vertically shift initial profiles
	268	INTEGER(iwp) :: nz_w_shift !< topography-top index on w-grid, used to vertically shift initial profiles
	269	INTEGER(iwp) :: nz_s_shift !< topography-top index on scalar-grid, used to vertically shift initial profiles
	270	INTEGER(iwp) :: nz_u_shift_l !< topography-top index on u-grid, used to vertically shift initial profiles
	271	INTEGER(iwp) :: nz_v_shift_l !< topography-top index on v-grid, used to vertically shift initial profiles
	272	INTEGER(iwp) :: nz_w_shift_l !< topography-top index on w-grid, used to vertically shift initial profiles
	273	INTEGER(iwp) :: nz_s_shift_l !< topography-top index on scalar-grid, used to vertically shift initial profiles
	274	INTEGER(iwp) :: nzt_l !< index of top PE boundary for multigrid level
	275	INTEGER(iwp) :: sr !< index of statistic region
[1]	276
[4648]	277	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !< toal number of horizontal grid points in statistical region on
	278	!< subdomain
[1]	279
[4648]	280	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !< number of horizontal non-wall bounded grid points on
	281	!< subdomain
	282	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !< number of horizontal non-topography grid points on
	283	!< subdomain
[1]	284
[2037]	285	REAL(wp) :: dx_l !< grid spacing along x on different multigrid level
	286	REAL(wp) :: dy_l !< grid spacing along y on different multigrid level
	287
[4648]	288	REAL(wp), DIMENSION(:), ALLOCATABLE :: init_l !< dummy array used for averaging 3D data to obtain
	289	!< inital profiles
	290	REAL(wp), DIMENSION(:), ALLOCATABLE :: mean_surface_level_height_l !< mean surface level height on subdomain
	291	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !< total number of non-topography grid points on subdomain
	292	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !< total number of non-topography grid points
	293	REAL(wp), DIMENSION(:), ALLOCATABLE :: p_hydrostatic !< hydrostatic pressure
	294
[3547]	295	REAL(wp), DIMENSION(1:3) :: volume_flow_area_l !< area of lateral and top model domain surface on local subdomain
	296	REAL(wp), DIMENSION(1:3) :: volume_flow_initial_l !< initial volume flow into model domain
[1]	297
[4648]	298	TYPE(real_2d) :: tmp_2d !< temporary variable to input additional surface-data from static file
[1]	299
[3987]	300	CALL location_message( 'model initialization', 'start' )
[4227]	301	!
	302	!-- Set reference date-time
[4680]	303	CALL init_date_time( date_time_str=origin_date_time, &
	304	use_fixed_date=use_fixed_date, &
	305	use_fixed_time=use_fixed_time )
[3987]	306
	307	IF ( debug_output ) CALL debug_message( 'allocating arrays', 'start' )
[1]	308	!
	309	!-- Allocate arrays
[4648]	310	ALLOCATE( mean_surface_level_height(0:statistic_regions), &
	311	mean_surface_level_height_l(0:statistic_regions), &
	312	ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
	313	ngp_3d(0:statistic_regions), &
	314	ngp_3d_inner(0:statistic_regions), &
	315	ngp_3d_inner_l(0:statistic_regions), &
	316	ngp_3d_inner_tmp(0:statistic_regions), &
	317	sums_divnew_l(0:statistic_regions), &
[1]	318	sums_divold_l(0:statistic_regions) )
[1195]	319	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
[4648]	320	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
	321	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
	322	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
	323	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
	324	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
	325	sums(nzb:nzt+1,pr_palm+max_pr_user+max_pr_cs+max_pr_salsa), &
[4131]	326	sums_l(nzb:nzt+1,pr_palm+max_pr_user+max_pr_cs+max_pr_salsa,0:threads_per_task-1), &
[4648]	327	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
[3700]	328	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions) )
	329	ALLOCATE( ts_value(dots_max,0:statistic_regions) )
[978]	330	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
[1]	331
[4648]	332	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
	333	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1010]	334	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	335
[4648]	336	ALLOCATE( pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	337	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	338	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	339	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	340	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	341	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	342	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	343	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	344	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	345	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	346	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1788]	347	IF ( .NOT. neutral ) THEN
[1032]	348	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	349	ENDIF
[673]	350	!
[3747]	351	!-- Pre-set masks for regional statistics. Default is the total model domain.
[4648]	352	!-- Ghost points are excluded because counting values at the ghost boundaries would bias the
	353	!-- statistics.
[3747]	354	rmask = 1.0_wp
	355	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
	356	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
	357	!
[4648]	358	!-- Following array is required for perturbation pressure within the iterative pressure solvers. For
	359	!-- the multistep schemes (Runge-Kutta), array p holds the weighted average of the substeps and
	360	!-- cannot be used in the Poisson solver.
[707]	361	IF ( psolver == 'sor' ) THEN
	362	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1575]	363	ELSEIF ( psolver(1:9) == 'multigrid' ) THEN
[707]	364	!
	365	!-- For performance reasons, multigrid is using one ghost layer only
	366	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[673]	367	ENDIF
[1]	368
[1111]	369	!
	370	!-- Array for storing constant coeffficients of the tridiagonal solver
	371	IF ( psolver == 'poisfft' ) THEN
[1212]	372	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
[1111]	373	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
	374	ENDIF
	375
[1960]	376	IF ( humidity ) THEN
[1]	377	!
[1960]	378	!-- 3D-humidity
[4648]	379	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	380	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	381	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	382	vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	383	ENDIF
	384
[1960]	385	IF ( passive_scalar ) THEN
[1]	386
[1960]	387	!
	388	!-- 3D scalar arrays
[4648]	389	ALLOCATE( s_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	390	s_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1960]	391	s_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[3636]	392
[1960]	393	ENDIF
	394
[1]	395	!
[4648]	396	!-- Allocate and set 1d-profiles for Stokes drift velocity. It may be set to non-zero values later
	397	!-- in ocean_init.
	398	ALLOCATE( u_stokes_zu(nzb:nzt+1), u_stokes_zw(nzb:nzt+1), &
[3302]	399	v_stokes_zu(nzb:nzt+1), v_stokes_zw(nzb:nzt+1) )
	400	u_stokes_zu(:) = 0.0_wp
	401	u_stokes_zw(:) = 0.0_wp
	402	v_stokes_zu(:) = 0.0_wp
	403	v_stokes_zw(:) = 0.0_wp
	404
	405	!
[2037]	406	!-- Allocation of anelastic and Boussinesq approximation specific arrays
	407	ALLOCATE( p_hydrostatic(nzb:nzt+1) )
	408	ALLOCATE( rho_air(nzb:nzt+1) )
	409	ALLOCATE( rho_air_zw(nzb:nzt+1) )
	410	ALLOCATE( drho_air(nzb:nzt+1) )
	411	ALLOCATE( drho_air_zw(nzb:nzt+1) )
	412	!
[4648]	413	!-- Density profile calculation for anelastic and Boussinesq approximation.
	414	!-- In case of a Boussinesq approximation, a constant density is calculated mainly for output
	415	!-- purposes. This density does not need to be considered in the model's system of equations.
[4088]	416	IF ( TRIM( approximation ) == 'anelastic' ) THEN
[2037]	417	DO k = nzb, nzt+1
[4648]	418	p_hydrostatic(k) = barometric_formula(zu(k), pt_surface * &
	419	exner_function(surface_pressure * 100.0_wp), &
	420	surface_pressure * 100.0_wp)
	421
[4088]	422	rho_air(k) = ideal_gas_law_rho_pt(p_hydrostatic(k), pt_init(k))
[2037]	423	ENDDO
[4648]	424
[2037]	425	DO k = nzb, nzt
	426	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
	427	ENDDO
[4648]	428
	429	rho_air_zw(nzt+1) = rho_air_zw(nzt) + 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
	430
[2037]	431	ELSE
[2252]	432	DO k = nzb, nzt+1
[4648]	433	p_hydrostatic(k) = barometric_formula(zu(nzb), pt_surface * &
	434	exner_function(surface_pressure * 100.0_wp), &
	435	surface_pressure * 100.0_wp)
[4088]	436
	437	rho_air(k) = ideal_gas_law_rho_pt(p_hydrostatic(k), pt_init(nzb))
[2252]	438	ENDDO
[4648]	439
[2252]	440	DO k = nzb, nzt
	441	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
	442	ENDDO
[4648]	443
	444	rho_air_zw(nzt+1) = rho_air_zw(nzt) + 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
	445
[2037]	446	ENDIF
[2696]	447	!
[4648]	448	!-- Compute the inverse density array in order to avoid expencive divisions
[2037]	449	drho_air = 1.0_wp / rho_air
	450	drho_air_zw = 1.0_wp / rho_air_zw
	451
	452	!
	453	!-- Allocation of flux conversion arrays
	454	ALLOCATE( heatflux_input_conversion(nzb:nzt+1) )
	455	ALLOCATE( waterflux_input_conversion(nzb:nzt+1) )
	456	ALLOCATE( momentumflux_input_conversion(nzb:nzt+1) )
	457	ALLOCATE( heatflux_output_conversion(nzb:nzt+1) )
	458	ALLOCATE( waterflux_output_conversion(nzb:nzt+1) )
	459	ALLOCATE( momentumflux_output_conversion(nzb:nzt+1) )
	460
	461	!
[4648]	462	!-- Calculate flux conversion factors according to approximation and in-/output mode
[2037]	463	DO k = nzb, nzt+1
	464
	465	IF ( TRIM( flux_input_mode ) == 'kinematic' ) THEN
	466	heatflux_input_conversion(k) = rho_air_zw(k)
	467	waterflux_input_conversion(k) = rho_air_zw(k)
	468	momentumflux_input_conversion(k) = rho_air_zw(k)
	469	ELSEIF ( TRIM( flux_input_mode ) == 'dynamic' ) THEN
[3274]	470	heatflux_input_conversion(k) = 1.0_wp / c_p
[2037]	471	waterflux_input_conversion(k) = 1.0_wp / l_v
	472	momentumflux_input_conversion(k) = 1.0_wp
	473	ENDIF
	474
	475	IF ( TRIM( flux_output_mode ) == 'kinematic' ) THEN
	476	heatflux_output_conversion(k) = drho_air_zw(k)
	477	waterflux_output_conversion(k) = drho_air_zw(k)
	478	momentumflux_output_conversion(k) = drho_air_zw(k)
	479	ELSEIF ( TRIM( flux_output_mode ) == 'dynamic' ) THEN
[3274]	480	heatflux_output_conversion(k) = c_p
[2037]	481	waterflux_output_conversion(k) = l_v
	482	momentumflux_output_conversion(k) = 1.0_wp
	483	ENDIF
	484
	485	IF ( .NOT. humidity ) THEN
	486	waterflux_input_conversion(k) = 1.0_wp
	487	waterflux_output_conversion(k) = 1.0_wp
	488	ENDIF
	489
	490	ENDDO
	491
	492	!
[4648]	493	!-- In case of multigrid method, compute grid lengths and grid factors for the grid levels with
	494	!-- respective density on each grid.
[2037]	495	IF ( psolver(1:9) == 'multigrid' ) THEN
	496
	497	ALLOCATE( ddx2_mg(maximum_grid_level) )
	498	ALLOCATE( ddy2_mg(maximum_grid_level) )
	499	ALLOCATE( dzu_mg(nzb+1:nzt+1,maximum_grid_level) )
	500	ALLOCATE( dzw_mg(nzb+1:nzt+1,maximum_grid_level) )
	501	ALLOCATE( f1_mg(nzb+1:nzt,maximum_grid_level) )
	502	ALLOCATE( f2_mg(nzb+1:nzt,maximum_grid_level) )
	503	ALLOCATE( f3_mg(nzb+1:nzt,maximum_grid_level) )
	504	ALLOCATE( rho_air_mg(nzb:nzt+1,maximum_grid_level) )
	505	ALLOCATE( rho_air_zw_mg(nzb:nzt+1,maximum_grid_level) )
	506
	507	dzu_mg(:,maximum_grid_level) = dzu
	508	rho_air_mg(:,maximum_grid_level) = rho_air
[4648]	509	!
	510	!-- Next line to ensure an equally spaced grid.
[2037]	511	dzu_mg(1,maximum_grid_level) = dzu(2)
[4648]	512	rho_air_mg(nzb,maximum_grid_level) = rho_air(nzb) + (rho_air(nzb) - rho_air(nzb+1))
[2037]	513
	514	dzw_mg(:,maximum_grid_level) = dzw
	515	rho_air_zw_mg(:,maximum_grid_level) = rho_air_zw
	516	nzt_l = nzt
	517	DO l = maximum_grid_level-1, 1, -1
	518	dzu_mg(nzb+1,l) = 2.0_wp * dzu_mg(nzb+1,l+1)
	519	dzw_mg(nzb+1,l) = 2.0_wp * dzw_mg(nzb+1,l+1)
[4648]	520	rho_air_mg(nzb,l) = rho_air_mg(nzb,l+1) + ( rho_air_mg(nzb,l+1) - &
	521	rho_air_mg(nzb+1,l+1) )
	522	rho_air_zw_mg(nzb,l) = rho_air_zw_mg(nzb,l+1) + ( rho_air_zw_mg(nzb,l+1) - &
	523	rho_air_zw_mg(nzb+1,l+1) )
[2037]	524	rho_air_mg(nzb+1,l) = rho_air_mg(nzb+1,l+1)
	525	rho_air_zw_mg(nzb+1,l) = rho_air_zw_mg(nzb+1,l+1)
	526	nzt_l = nzt_l / 2
	527	DO k = 2, nzt_l+1
	528	dzu_mg(k,l) = dzu_mg(2k-2,l+1) + dzu_mg(2k-1,l+1)
	529	dzw_mg(k,l) = dzw_mg(2k-2,l+1) + dzw_mg(2k-1,l+1)
	530	rho_air_mg(k,l) = rho_air_mg(2*k-1,l+1)
	531	rho_air_zw_mg(k,l) = rho_air_zw_mg(2*k-1,l+1)
	532	ENDDO
	533	ENDDO
	534
	535	nzt_l = nzt
	536	dx_l = dx
	537	dy_l = dy
	538	DO l = maximum_grid_level, 1, -1
	539	ddx2_mg(l) = 1.0_wp / dx_l**2
	540	ddy2_mg(l) = 1.0_wp / dy_l**2
	541	DO k = nzb+1, nzt_l
	542	f2_mg(k,l) = rho_air_zw_mg(k,l) / ( dzu_mg(k+1,l) * dzw_mg(k,l) )
	543	f3_mg(k,l) = rho_air_zw_mg(k-1,l) / ( dzu_mg(k,l) * dzw_mg(k,l) )
[4648]	544	f1_mg(k,l) = 2.0_wp * ( ddx2_mg(l) + ddy2_mg(l) ) &
[2037]	545	* rho_air_mg(k,l) + f2_mg(k,l) + f3_mg(k,l)
	546	ENDDO
	547	nzt_l = nzt_l / 2
	548	dx_l = dx_l * 2.0_wp
	549	dy_l = dy_l * 2.0_wp
	550	ENDDO
	551
	552	ENDIF
	553
	554	!
[1299]	555	!-- 1D-array for large scale subsidence velocity
[1361]	556	IF ( .NOT. ALLOCATED( w_subs ) ) THEN
	557	ALLOCATE ( w_subs(nzb:nzt+1) )
	558	w_subs = 0.0_wp
	559	ENDIF
[1299]	560
	561	!
[4648]	562	!-- Arrays to store velocity data from t-dt and the phase speeds which are needed for radiation
	563	!-- boundary conditions.
[3182]	564	IF ( bc_radiation_l ) THEN
[4648]	565	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
	566	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
[667]	567	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
[73]	568	ENDIF
[3182]	569	IF ( bc_radiation_r ) THEN
[4648]	570	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	571	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
[667]	572	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
[73]	573	ENDIF
[3182]	574	IF ( bc_radiation_l .OR. bc_radiation_r ) THEN
[4648]	575	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), c_w(nzb:nzt+1,nysg:nyng) )
[106]	576	ENDIF
[3182]	577	IF ( bc_radiation_s ) THEN
[4648]	578	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
	579	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
[667]	580	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
[73]	581	ENDIF
[3182]	582	IF ( bc_radiation_n ) THEN
[4648]	583	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	584	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
[667]	585	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
[73]	586	ENDIF
[3182]	587	IF ( bc_radiation_s .OR. bc_radiation_n ) THEN
[4648]	588	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), c_w(nzb:nzt+1,nxlg:nxrg) )
[106]	589	ENDIF
[4648]	590	IF ( bc_radiation_l .OR. bc_radiation_r .OR. bc_radiation_s .OR. bc_radiation_n ) THEN
	591	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
[978]	592	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
	593	ENDIF
[73]	594
	595	!
[1]	596	!-- Initial assignment of the pointers
[1032]	597	IF ( .NOT. neutral ) THEN
	598	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
	599	ELSE
	600	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
	601	ENDIF
[1001]	602	u => u_1; u_p => u_2; tu_m => u_3
	603	v => v_1; v_p => v_2; tv_m => v_3
	604	w => w_1; w_p => w_2; tw_m => w_3
[1]	605
[1960]	606	IF ( humidity ) THEN
[1001]	607	q => q_1; q_p => q_2; tq_m => q_3
[3274]	608	vpt => vpt_1
[1001]	609	ENDIF
[4648]	610
[1960]	611	IF ( passive_scalar ) THEN
	612	s => s_1; s_p => s_2; ts_m => s_3
[4648]	613	ENDIF
[1]	614
	615	!
[2696]	616	!-- Initialize surface arrays
[2232]	617	CALL init_surface_arrays
	618	!
[3294]	619	!-- Allocate arrays for other modules
[3685]	620	CALL module_interface_init_arrays
[1551]	621
[1914]	622
[2320]	623	!
[4648]	624	!-- Allocate arrays containing the RK coefficient for calculation of perturbation pressure and
	625	!-- turbulent fluxes. At this point values are set for pressure calculation during initialization
	626	!-- (where no timestep is done). Further below the values needed within the timestep scheme will be
	627	!-- set.
	628	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
[1878]	629	weight_pres(1:intermediate_timestep_count_max) )
[1340]	630	weight_substep = 1.0_wp
	631	weight_pres = 1.0_wp
[1918]	632	intermediate_timestep_count = 0 ! needed when simulated_time = 0.0
[4648]	633
[3987]	634	IF ( debug_output ) CALL debug_message( 'allocating arrays', 'end' )
[1918]	635
[673]	636	!
[3014]	637	!-- Initialize time series
	638	ts_value = 0.0_wp
	639
	640	!
[1918]	641	!-- Initialize local summation arrays for routine flow_statistics.
[4648]	642	!-- This is necessary because they may not yet have been initialized when they are called from
	643	!-- flow_statistics (or - depending on the chosen model run - are never initialized)
	644	sums_divnew_l = 0.0_wp
	645	sums_divold_l = 0.0_wp
	646	sums_l_l = 0.0_wp
	647	sums_wsts_bc_l = 0.0_wp
	648
[1918]	649	!
[1]	650	!-- Initialize model variables
[4648]	651	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[328]	652	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[1]	653	!
[2696]	654	!-- Initialization with provided input data derived from larger-scale model
	655	IF ( INDEX( initializing_actions, 'inifor' ) /= 0 ) THEN
[3987]	656	IF ( debug_output ) CALL debug_message( 'initializing with INIFOR', 'start' )
[2696]	657	!
[4648]	658	!-- Read initial 1D profiles or 3D data from NetCDF file, depending on the provided
	659	!-- level-of-detail.
	660	!-- At the moment, only u, v, w, pt and q are provided.
[2696]	661	CALL netcdf_data_input_init_3d
	662	!
[4648]	663	!-- Please note, Inifor provides data from nzb+1 to nzt.
	664	!-- Bottom and top boundary conditions for Inifor profiles are already set (just after
	665	!-- reading), so that this is not necessary here.
	666	!-- Depending on the provided level-of-detail, initial Inifor data is either stored on data
	667	!-- type (lod=1), or directly on 3D arrays (lod=2).
	668	!-- In order to obtain also initial profiles in case of lod=2 (which is required for e.g.
	669	!-- damping), average over 3D data.
[3182]	670	IF( init_3d%lod_u == 1 ) THEN
	671	u_init = init_3d%u_init
[4648]	672	ELSEIF( init_3d%lod_u == 2 ) THEN
	673	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	674	DO k = nzb, nzt+1
	675	init_l(k) = SUM( u(k,nys:nyn,nxl:nxr) )
	676	ENDDO
	677	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
[1384]	678
[3182]	679	#if defined( __parallel )
[4648]	680	CALL MPI_ALLREDUCE( init_l, u_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	681	#else
	682	u_init = init_l
	683	#endif
	684	DEALLOCATE( init_l )
[3051]	685
[2696]	686	ENDIF
[4648]	687
	688	IF( init_3d%lod_v == 1 ) THEN
[3182]	689	v_init = init_3d%v_init
[4648]	690	ELSEIF( init_3d%lod_v == 2 ) THEN
	691	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	692	DO k = nzb, nzt+1
	693	init_l(k) = SUM( v(k,nys:nyn,nxl:nxr) )
	694	ENDDO
	695	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
[2696]	696
[3182]	697	#if defined( __parallel )
[4648]	698	CALL MPI_ALLREDUCE( init_l, v_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	699	#else
	700	v_init = init_l
	701	#endif
	702	DEALLOCATE( init_l )
	703	ENDIF
	704	IF( .NOT. neutral ) THEN
	705	IF( init_3d%lod_pt == 1 ) THEN
	706	pt_init = init_3d%pt_init
[4648]	707	ELSEIF( init_3d%lod_pt == 2 ) THEN
	708	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	709	DO k = nzb, nzt+1
	710	init_l(k) = SUM( pt(k,nys:nyn,nxl:nxr) )
	711	ENDDO
	712	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
	713
	714	#if defined( __parallel )
[4648]	715	CALL MPI_ALLREDUCE( init_l, pt_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	716	#else
	717	pt_init = init_l
	718	#endif
	719	DEALLOCATE( init_l )
	720	ENDIF
	721	ENDIF
	722
	723
	724	IF( humidity ) THEN
	725	IF( init_3d%lod_q == 1 ) THEN
	726	q_init = init_3d%q_init
[4648]	727	ELSEIF( init_3d%lod_q == 2 ) THEN
	728	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	729	DO k = nzb, nzt+1
	730	init_l(k) = SUM( q(k,nys:nyn,nxl:nxr) )
	731	ENDDO
	732	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
	733
	734	#if defined( __parallel )
[4648]	735	CALL MPI_ALLREDUCE( init_l, q_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	736	#else
	737	q_init = init_l
	738	#endif
	739	DEALLOCATE( init_l )
	740	ENDIF
	741	ENDIF
	742
[2696]	743	!
[4648]	744	!-- Write initial profiles onto 3D arrays.
	745	!-- Work-around, 3D initialization of u,v,w creates artificial structures which correlate with
	746	!-- the processor grid. The reason for this is still unknown. To work-around this, 3D
	747	!-- initialization will be effectively reduce to a 1D initialization where no such artificial
	748	!-- structures appear.
[2696]	749	DO i = nxlg, nxrg
	750	DO j = nysg, nyng
[4648]	751	IF( init_3d%lod_u == 1 .OR. init_3d%lod_u == 2 ) u(:,j,i) = u_init(:)
	752	IF( init_3d%lod_v == 1 .OR. init_3d%lod_u == 2 ) v(:,j,i) = v_init(:)
	753	IF( .NOT. neutral .AND. ( init_3d%lod_pt == 1 .OR. init_3d%lod_pt == 2 ) ) &
[3051]	754	pt(:,j,i) = pt_init(:)
[4648]	755	IF( humidity .AND. ( init_3d%lod_q == 1 .OR. init_3d%lod_q == 2 ) ) &
[4130]	756	q(:,j,i) = q_init(:)
[2696]	757	ENDDO
	758	ENDDO
	759	!
[4648]	760	!-- Set geostrophic wind components.
[2938]	761	IF ( init_3d%from_file_ug ) THEN
	762	ug(:) = init_3d%ug_init(:)
	763	ENDIF
	764	IF ( init_3d%from_file_vg ) THEN
	765	vg(:) = init_3d%vg_init(:)
	766	ENDIF
[3404]	767	!
	768	!-- Set bottom and top boundary condition for geostrophic wind
[2938]	769	ug(nzt+1) = ug(nzt)
	770	vg(nzt+1) = vg(nzt)
[3404]	771	ug(nzb) = ug(nzb+1)
	772	vg(nzb) = vg(nzb+1)
[2696]	773	!
	774	!-- Set inital w to 0
	775	w = 0.0_wp
	776
	777	IF ( passive_scalar ) THEN
	778	DO i = nxlg, nxrg
	779	DO j = nysg, nyng
	780	s(:,j,i) = s_init
	781	ENDDO
	782	ENDDO
	783	ENDIF
	784
	785	!
[4648]	786	!-- Set velocity components at non-atmospheric / oceanic grid points to zero.
[4346]	787	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
	788	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
	789	w = MERGE( w, 0.0_wp, BTEST( wall_flags_total_0, 3 ) )
[2700]	790	!
[4648]	791	!-- Initialize surface variables, e.g. friction velocity, momentum fluxes, etc.
	792	CALL init_surfaces
[2696]	793
[4648]	794	IF ( debug_output ) CALL debug_message( 'initializing with INIFOR', 'end' )
[2696]	795	!
	796	!-- Initialization via computed 1D-model profiles
	797	ELSEIF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
	798
[4648]	799	IF ( debug_output ) CALL debug_message( 'initializing with 1D model profiles', 'start' )
[1]	800	!
	801	!-- Use solutions of the 1D model as initial profiles,
	802	!-- start 1D model
	803	CALL init_1d_model
	804	!
	805	!-- Transfer initial profiles to the arrays of the 3D model
[667]	806	DO i = nxlg, nxrg
	807	DO j = nysg, nyng
[1]	808	pt(:,j,i) = pt_init
	809	u(:,j,i) = u1d
	810	v(:,j,i) = v1d
	811	ENDDO
	812	ENDDO
	813
[1960]	814	IF ( humidity ) THEN
[667]	815	DO i = nxlg, nxrg
	816	DO j = nysg, nyng
[1]	817	q(:,j,i) = q_init
	818	ENDDO
	819	ENDDO
	820	ENDIF
[2292]	821
[1960]	822	IF ( passive_scalar ) THEN
	823	DO i = nxlg, nxrg
	824	DO j = nysg, nyng
	825	s(:,j,i) = s_init
	826	ENDDO
[4648]	827	ENDDO
[1960]	828	ENDIF
[1]	829	!
	830	!-- Store initial profiles for output purposes etc.
[2696]	831	IF ( .NOT. constant_diffusion ) THEN
[1]	832	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	833	ENDIF
	834	!
[2696]	835	!-- Set velocities back to zero
[4346]	836	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
[4648]	837	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
[1]	838	!
[4648]	839	!-- WARNING: The extra boundary conditions set after running the 1D model impose an error on
	840	!-- -------- the divergence one layer below the topography; need to correct later
	841	!-- ATTENTION: Provisional correction for Piacsek & Williams advection scheme: keep u and v
	842	!-- ---------- zero one layer below the topography.
[2696]	843	IF ( ibc_uv_b == 1 ) THEN
[667]	844	!
[2696]	845	!-- Neumann condition
	846	DO i = nxl-1, nxr+1
	847	DO j = nys-1, nyn+1
	848	u(nzb,j,i) = u(nzb+1,j,i)
	849	v(nzb,j,i) = v(nzb+1,j,i)
[1]	850	ENDDO
[2696]	851	ENDDO
[1]	852
	853	ENDIF
[2618]	854	!
[4648]	855	!-- Initialize surface variables, e.g. friction velocity, momentum fluxes, etc.
[2618]	856	CALL init_surfaces
[1]	857
[4648]	858	IF ( debug_output ) CALL debug_message( 'initializing with 1D model profiles', 'end' )
[1384]	859
[4648]	860	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) THEN
[1241]	861
[4648]	862	IF ( debug_output ) CALL debug_message( 'initializing with constant profiles', 'start' )
[2259]	863
	864	!
[4648]	865	!-- Use constructed initial profiles (velocity constant with height, temperature profile with
	866	!-- constant gradient)
[667]	867	DO i = nxlg, nxrg
	868	DO j = nysg, nyng
[1]	869	pt(:,j,i) = pt_init
	870	u(:,j,i) = u_init
	871	v(:,j,i) = v_init
	872	ENDDO
	873	ENDDO
	874	!
[2758]	875	!-- Mask topography
[4346]	876	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
	877	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
[2758]	878	!
[4648]	879	!-- Set initial horizontal velocities at the lowest computational grid levels to zero in order
	880	!-- to avoid too small time steps caused by the diffusion limit in the initial phase of a run
	881	!-- (at k=1, dz/2 occurs in the limiting formula!).
	882	!-- Please note, in case land- or urban-surface model is used and a spinup is applied, masking
	883	!-- the lowest computational level is not possible as MOST as well as energy-balance
	884	!-- parametrizations will not work with zero wind velocity.
	885	IF ( ibc_uv_b /= 1 .AND. .NOT. spinup ) THEN
[1815]	886	DO i = nxlg, nxrg
	887	DO j = nysg, nyng
[2232]	888	DO k = nzb, nzt
[4648]	889	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 20 ) )
	890	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 21 ) )
[2232]	891	ENDDO
[1815]	892	ENDDO
	893	ENDDO
	894	ENDIF
[1]	895
[1960]	896	IF ( humidity ) THEN
[667]	897	DO i = nxlg, nxrg
	898	DO j = nysg, nyng
[1]	899	q(:,j,i) = q_init
	900	ENDDO
	901	ENDDO
	902	ENDIF
[4648]	903
[1960]	904	IF ( passive_scalar ) THEN
	905	DO i = nxlg, nxrg
	906	DO j = nysg, nyng
	907	s(:,j,i) = s_init
	908	ENDDO
	909	ENDDO
	910	ENDIF
[1]	911
[1920]	912	!
[4648]	913	!-- Compute initial temperature field and other constants used in case of a sloping surface.
[1]	914	IF ( sloping_surface ) CALL init_slope
[2618]	915	!
[4648]	916	!-- Initialize surface variables, e.g. friction velocity, momentum fluxes, etc.
[2618]	917	CALL init_surfaces
[4648]	918
[3987]	919	IF ( debug_output ) CALL debug_message( 'initializing with constant profiles', 'end' )
[1384]	920
[4648]	921	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) THEN
[1384]	922
[3987]	923	IF ( debug_output ) CALL debug_message( 'initializing by user', 'start' )
[46]	924	!
[4648]	925	!-- Pre-initialize surface variables, i.e. setting start- and end-indices at each
	926	!-- (j,i)-location. Please note, this does not supersede user-defined initialization of
	927	!-- surface quantities.
[2618]	928	CALL init_surfaces
	929	!
[46]	930	!-- Initialization will completely be done by the user
	931	CALL user_init_3d_model
	932
[3987]	933	IF ( debug_output ) CALL debug_message( 'initializing by user', 'end' )
[1384]	934
[1]	935	ENDIF
[1384]	936
[4648]	937	IF ( debug_output ) THEN
	938	CALL debug_message( 'initializing statistics, boundary conditions, etc.', 'start' )
	939	ENDIF
[1384]	940
[667]	941	!
	942	!-- Bottom boundary
[4648]	943	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
[1340]	944	u(nzb,:,:) = 0.0_wp
	945	v(nzb,:,:) = 0.0_wp
[667]	946	ENDIF
[1]	947
	948	!
[151]	949	!-- Apply channel flow boundary condition
[132]	950	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
[1340]	951	u(nzt+1,:,:) = 0.0_wp
	952	v(nzt+1,:,:) = 0.0_wp
[132]	953	ENDIF
	954
	955	!
[1]	956	!-- Calculate virtual potential temperature
[1960]	957	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
[1]	958
	959	!
[4648]	960	!-- Store initial profiles for output purposes etc.. Please note, in case of initialization of u,
	961	!-- v, w, pt, and q via output data derived from larger scale models, data will not be
	962	!-- horizontally homogeneous. Actually, a mean profile should be calculated before.
[1]	963	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	964	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
[667]	965	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
[1340]	966	hom(nzb,1,5,:) = 0.0_wp
	967	hom(nzb,1,6,:) = 0.0_wp
[1]	968	ENDIF
	969	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	970
[75]	971	IF ( humidity ) THEN
[1]	972	!
[4648]	973	!-- Store initial profile of total water content, virtual potential temperature
[1]	974	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	975	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
[2696]	976	!
[4648]	977	!-- Store initial profile of mixing ratio and potential temperature
[3274]	978	IF ( bulk_cloud_model .OR. cloud_droplets ) THEN
[1]	979	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	980	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	981	ENDIF
	982	ENDIF
	983
[2696]	984	!
	985	!-- Store initial scalar profile
[1]	986	IF ( passive_scalar ) THEN
[2513]	987	hom(:,1,121,:) = SPREAD( s(:,nys,nxl), 2, statistic_regions+1 )
[1]	988	ENDIF
	989
	990	!
[1400]	991	!-- Initialize the random number generators (from numerical recipes)
	992	CALL random_function_ini
[4648]	993
[1400]	994	IF ( random_generator == 'random-parallel' ) THEN
[3241]	995	CALL init_parallel_random_generator( nx, nys, nyn, nxl, nxr )
[1400]	996	ENDIF
	997	!
[4648]	998	!-- Set the reference state to be used in the buoyancy terms (for ocean runs the reference state
	999	!-- will be set (overwritten) in init_ocean).
[1179]	1000	IF ( use_single_reference_value ) THEN
[4648]	1001	IF ( .NOT. humidity ) THEN
[1179]	1002	ref_state(:) = pt_reference
	1003	ELSE
	1004	ref_state(:) = vpt_reference
	1005	ENDIF
	1006	ELSE
[4648]	1007	IF ( .NOT. humidity ) THEN
[1179]	1008	ref_state(:) = pt_init(:)
	1009	ELSE
	1010	ref_state(:) = vpt(:,nys,nxl)
	1011	ENDIF
	1012	ENDIF
[152]	1013
	1014	!
[707]	1015	!-- For the moment, vertical velocity is zero
[1340]	1016	w = 0.0_wp
[1]	1017
	1018	!
	1019	!-- Initialize array sums (must be defined in first call of pres)
[1340]	1020	sums = 0.0_wp
[1]	1021
	1022	!
[707]	1023	!-- In case of iterative solvers, p must get an initial value
[1575]	1024	IF ( psolver(1:9) == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
[707]	1025	!
[1]	1026	!-- Impose vortex with vertical axis on the initial velocity profile
	1027	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	1028	CALL init_rankine
	1029	ENDIF
	1030
	1031	!
[4648]	1032	!-- Impose temperature anomaly (advection test only) or warm air bubble close to surface.
	1033	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 .OR. &
[3035]	1034	INDEX( initializing_actions, 'initialize_bubble' ) /= 0 ) THEN
[1]	1035	CALL init_pt_anomaly
	1036	ENDIF
[4648]	1037
[1]	1038	!
	1039	!-- If required, change the surface temperature at the start of the 3D run
[1340]	1040	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
[1]	1041	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	1042	ENDIF
	1043
	1044	!
	1045	!-- If required, change the surface humidity/scalar at the start of the 3D
	1046	!-- run
[4648]	1047	IF ( humidity .AND. q_surface_initial_change /= 0.0_wp ) &
[1]	1048	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
[4648]	1049
	1050	IF ( passive_scalar .AND. s_surface_initial_change /= 0.0_wp ) &
[1960]	1051	s(nzb,:,:) = s(nzb,:,:) + s_surface_initial_change
[1]	1052
[4648]	1053
[1]	1054	!
	1055	!-- Initialize old and new time levels.
[2696]	1056	tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
	1057	pt_p = pt; u_p = u; v_p = v; w_p = w
[1]	1058
[1960]	1059	IF ( humidity ) THEN
[1340]	1060	tq_m = 0.0_wp
[1]	1061	q_p = q
	1062	ENDIF
[4648]	1063
[1960]	1064	IF ( passive_scalar ) THEN
	1065	ts_m = 0.0_wp
	1066	s_p = s
[4648]	1067	ENDIF
[1]	1068
[4648]	1069	IF ( debug_output ) THEN
	1070	CALL debug_message( 'initializing statistics, boundary conditions, etc.', 'end' )
	1071	ENDIF
[94]	1072
[1788]	1073	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
[2232]	1074	TRIM( initializing_actions ) == 'cyclic_fill' ) &
[1]	1075	THEN
[1384]	1076
[4648]	1077	IF ( debug_output ) THEN
	1078	CALL debug_message( 'initializing in case of restart / cyclic_fill', 'start' )
	1079	ENDIF
[1]	1080	!
[4648]	1081	!-- Initialize surface elements and its attributes, e.g. heat- and momentumfluxes, roughness,
	1082	!-- scaling parameters. As number of surface elements might be different between runs, e.g. in
	1083	!-- case of cyclic fill, and not all surface elements are read, surface elements need to be
	1084	!-- initialized before.
	1085	!-- Please note, in case of cyclic fill, surfaces should be initialized after restart data is
	1086	!-- read, else, individual settings of surface parameters will be overwritten from data of
	1087	!-- precursor run, hence, init_surfaces is called a second time after reading the restart data.
	1088	CALL init_surfaces
[3609]	1089	!
[4648]	1090	!-- When reading data for cyclic fill of 3D prerun data files, read some of the global variables
	1091	!-- from the restart file which are required for initializing the inflow
[328]	1092	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[559]	1093
[4783]	1094	!
	1095	!-- Blockwise I/O does not work together with MPI-I/O
	1096	IF ( restart_data_format_input(1:3) == 'mpi' ) THEN
	1097	CALL rrd_read_parts_of_global
	1098	ELSE
	1099	DO i = 0, io_blocks-1
	1100	IF ( i == io_group ) THEN
	1101	CALL rrd_read_parts_of_global
	1102	ENDIF
	1103	#if defined( __parallel )
	1104	CALL MPI_BARRIER( comm2d, ierr )
	1105	#endif
	1106	ENDDO
	1107	ENDIF
	1108
	1109	ENDIF
	1110
	1111	!
	1112	!-- Read processor specific binary data from restart file.
	1113	!-- Blockwise I/O does not work together with MPI-I/O
	1114	IF ( restart_data_format_input(1:3) == 'mpi' ) THEN
	1115	CALL rrd_local
	1116	ELSE
[759]	1117	DO i = 0, io_blocks-1
	1118	IF ( i == io_group ) THEN
[4783]	1119	CALL rrd_local
[759]	1120	ENDIF
	1121	#if defined( __parallel )
	1122	CALL MPI_BARRIER( comm2d, ierr )
	1123	#endif
	1124	ENDDO
[767]	1125	ENDIF
	1126
[4648]	1127
[4365]	1128	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1129
[3608]	1130	!
[4648]	1131	!-- In case of cyclic fill, call init_surfaces a second time, so that surface properties such
	1132	!-- as heat fluxes are initialized as prescribed.
[3609]	1133	CALL init_surfaces
[767]	1134
[328]	1135	!
[4648]	1136	!-- Overwrite u_init, v_init, pt_init, q_init and s_init with the horizontally mean (hom)
	1137	!-- vertical profiles from the end of the prerun, because these profiles shall be used as the
	1138	!-- reference state for the rayleigh damping and the pt_damping. This is especially important
	1139	!-- for the use of large_scale_subsidence, because the reference temperature in the free
	1140	!-- atmosphere changes in time.
[4365]	1141	u_init(:) = hom_sum(:,1,0)
	1142	v_init(:) = hom_sum(:,2,0)
	1143	pt_init(:) = hom_sum(:,4,0)
[4648]	1144	IF ( humidity ) q_init(:) = hom_sum(:,41,0)
	1145	IF ( passive_scalar ) s_init(:) = hom_sum(:,115,0)
[4365]	1146	ENDIF
	1147	!
[4648]	1148	!-- In case of complex terrain and cyclic fill method as initialization, shift initial data in
	1149	!-- the vertical direction for each point in the x-y-plane depending on local surface height.
	1150	IF ( complex_terrain .AND. TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[2550]	1151	DO i = nxlg, nxrg
	1152	DO j = nysg, nyng
[4168]	1153	nz_u_shift = topo_top_ind(j,i,1)
	1154	nz_v_shift = topo_top_ind(j,i,2)
	1155	nz_w_shift = topo_top_ind(j,i,3)
	1156	nz_s_shift = topo_top_ind(j,i,0)
[2550]	1157
[4648]	1158	u(nz_u_shift:nzt+1,j,i) = u(0:nzt+1-nz_u_shift,j,i)
[2550]	1159
	1160	v(nz_v_shift:nzt+1,j,i) = v(0:nzt+1-nz_v_shift,j,i)
	1161
	1162	w(nz_w_shift:nzt+1,j,i) = w(0:nzt+1-nz_w_shift,j,i)
	1163
	1164	p(nz_s_shift:nzt+1,j,i) = p(0:nzt+1-nz_s_shift,j,i)
	1165	pt(nz_s_shift:nzt+1,j,i) = pt(0:nzt+1-nz_s_shift,j,i)
	1166	ENDDO
	1167	ENDDO
	1168	ENDIF
	1169	!
[767]	1170	!-- Initialization of the turbulence recycling method
[4648]	1171	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. turbulent_inflow ) THEN
[767]	1172	!
	1173	!-- First store the profiles to be used at the inflow.
[4648]	1174	!-- These profiles are the (temporally) and horizontally averaged vertical profiles from the
	1175	!-- prerun. Alternatively, prescribed profiles for u,v-components can be used.
[3288]	1176	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,1:num_mean_inflow_profiles) )
[151]	1177
[767]	1178	IF ( use_prescribed_profile_data ) THEN
	1179	mean_inflow_profiles(:,1) = u_init ! u
	1180	mean_inflow_profiles(:,2) = v_init ! v
	1181	ELSE
[328]	1182	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
	1183	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
[767]	1184	ENDIF
	1185	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
[4648]	1186	IF ( humidity ) mean_inflow_profiles(:,6) = hom_sum(:,41,0) ! q
	1187	IF ( passive_scalar ) mean_inflow_profiles(:,7) = hom_sum(:,115,0) ! s
[4365]	1188
[2550]	1189	!
[4648]	1190	!-- In case of complex terrain, determine vertical displacement at inflow boundary and adjust
	1191	!-- mean inflow profiles
[2550]	1192	IF ( complex_terrain ) THEN
[4648]	1193	IF ( nxlg <= 0 .AND. nxrg >= 0 .AND. nysg <= 0 .AND. nyng >= 0 ) THEN
[4168]	1194	nz_u_shift_l = topo_top_ind(j,i,1)
	1195	nz_v_shift_l = topo_top_ind(j,i,2)
	1196	nz_w_shift_l = topo_top_ind(j,i,3)
	1197	nz_s_shift_l = topo_top_ind(j,i,0)
[2550]	1198	ELSE
	1199	nz_u_shift_l = 0
	1200	nz_v_shift_l = 0
	1201	nz_w_shift_l = 0
	1202	nz_s_shift_l = 0
	1203	ENDIF
[151]	1204
[2550]	1205	#if defined( __parallel )
[4648]	1206	CALL MPI_ALLREDUCE( nz_u_shift_l, nz_u_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
	1207	CALL MPI_ALLREDUCE( nz_v_shift_l, nz_v_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
	1208	CALL MPI_ALLREDUCE( nz_w_shift_l, nz_w_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
	1209	CALL MPI_ALLREDUCE( nz_s_shift_l, nz_s_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
[2550]	1210	#else
	1211	nz_u_shift = nz_u_shift_l
	1212	nz_v_shift = nz_v_shift_l
	1213	nz_w_shift = nz_w_shift_l
	1214	nz_s_shift = nz_s_shift_l
	1215	#endif
	1216
	1217	mean_inflow_profiles(:,1) = 0.0_wp
	1218	mean_inflow_profiles(nz_u_shift:nzt+1,1) = hom_sum(0:nzt+1-nz_u_shift,1,0) ! u
	1219
	1220	mean_inflow_profiles(:,2) = 0.0_wp
	1221	mean_inflow_profiles(nz_v_shift:nzt+1,2) = hom_sum(0:nzt+1-nz_v_shift,2,0) ! v
	1222
	1223	mean_inflow_profiles(nz_s_shift:nzt+1,4) = hom_sum(0:nzt+1-nz_s_shift,4,0) ! pt
	1224
	1225	ENDIF
	1226
[151]	1227	!
[4648]	1228	!-- If necessary, adjust the horizontal flow field to the prescribed profiles
[767]	1229	IF ( use_prescribed_profile_data ) THEN
	1230	DO i = nxlg, nxrg
[667]	1231	DO j = nysg, nyng
[328]	1232	DO k = nzb, nzt+1
[767]	1233	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
	1234	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
[328]	1235	ENDDO
[151]	1236	ENDDO
[767]	1237	ENDDO
	1238	ENDIF
[151]	1239
	1240	!
[4648]	1241	!-- Use these mean profiles at the inflow (provided that Dirichlet conditions are used)
[3182]	1242	IF ( bc_dirichlet_l ) THEN
[767]	1243	DO j = nysg, nyng
	1244	DO k = nzb, nzt+1
	1245	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
	1246	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
[1340]	1247	w(k,j,nxlg:-1) = 0.0_wp
[767]	1248	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
[4648]	1249	IF ( humidity ) q(k,j,nxlg:-1) = mean_inflow_profiles(k,6)
	1250	IF ( passive_scalar ) s(k,j,nxlg:-1) = mean_inflow_profiles(k,7)
[767]	1251	ENDDO
	1252	ENDDO
	1253	ENDIF
	1254
[151]	1255	!
[4648]	1256	!-- Calculate the damping factors to be used at the inflow. For a turbulent inflow the
	1257	!-- turbulent fluctuations have to be limited vertically because otherwise the turbulent
	1258	!-- inflow layer will grow in time.
[1340]	1259	IF ( inflow_damping_height == 9999999.9_wp ) THEN
[767]	1260	!
[4648]	1261	!-- Default: use the inversion height calculated by the prerun; if this is zero,
	1262	!-- inflow_damping_height must be explicitly specified.
[1340]	1263	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
[767]	1264	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
	1265	ELSE
[4648]	1266	WRITE( message_string, * ) 'inflow_damping_height must be ', &
	1267	'explicitly specified because&the inversion height ', &
	1268	'calculated by the prerun is zero.'
[767]	1269	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
[292]	1270	ENDIF
[151]	1271
[767]	1272	ENDIF
	1273
[1340]	1274	IF ( inflow_damping_width == 9999999.9_wp ) THEN
[151]	1275	!
[4648]	1276	!-- Default for the transition range: one tenth of the undamped layer
[1340]	1277	inflow_damping_width = 0.1_wp * inflow_damping_height
[151]	1278
[767]	1279	ENDIF
[151]	1280
[767]	1281	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
[151]	1282
[767]	1283	DO k = nzb, nzt+1
[151]	1284
[767]	1285	IF ( zu(k) <= inflow_damping_height ) THEN
[1340]	1286	inflow_damping_factor(k) = 1.0_wp
[996]	1287	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
[4648]	1288	inflow_damping_factor(k) = 1.0_wp - &
	1289	( zu(k) - inflow_damping_height ) / inflow_damping_width
[767]	1290	ELSE
[1340]	1291	inflow_damping_factor(k) = 0.0_wp
[767]	1292	ENDIF
[151]	1293
[767]	1294	ENDDO
[151]	1295
[147]	1296	ENDIF
	1297
[152]	1298	!
[2696]	1299	!-- Inside buildings set velocities back to zero
[4648]	1300	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. topography /= 'flat' ) THEN
[359]	1301	!
[2696]	1302	!-- Inside buildings set velocities back to zero.
	1303	!-- Other scalars (pt, q, s, p, sa, ...) are ignored at present,
[359]	1304	!-- maybe revise later.
[1001]	1305	DO i = nxlg, nxrg
	1306	DO j = nysg, nyng
[2232]	1307	DO k = nzb, nzt
[4648]	1308	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 1 ) )
	1309	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 2 ) )
	1310	w(k,j,i) = MERGE( w(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 3 ) )
[2232]	1311	ENDDO
[359]	1312	ENDDO
[1001]	1313	ENDDO
[359]	1314
	1315	ENDIF
	1316
	1317	!
[4648]	1318	!-- Calculate initial temperature field and other constants used in case of a sloping surface
[1]	1319	IF ( sloping_surface ) CALL init_slope
	1320
	1321	!
[4648]	1322	!-- Initialize new time levels (only done in order to set boundary values including ghost points)
[2696]	1323	pt_p = pt; u_p = u; v_p = v; w_p = w
[1960]	1324	IF ( humidity ) THEN
[1053]	1325	q_p = q
	1326	ENDIF
[1960]	1327	IF ( passive_scalar ) s_p = s
[181]	1328	!
[4648]	1329	!-- Allthough tendency arrays are set in prognostic_equations, they have have to be predefined
	1330	!-- here because they are used (but multiplied with 0) there before they are set.
[2696]	1331	tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
[1960]	1332	IF ( humidity ) THEN
[1340]	1333	tq_m = 0.0_wp
[1053]	1334	ENDIF
[1960]	1335	IF ( passive_scalar ) ts_m = 0.0_wp
[181]	1336
[4648]	1337	IF ( debug_output ) THEN
	1338	CALL debug_message( 'initializing in case of restart / cyclic_fill', 'end' )
	1339	ENDIF
[1384]	1340
[1]	1341	ELSE
	1342	!
	1343	!-- Actually this part of the programm should not be reached
[254]	1344	message_string = 'unknown initializing problem'
	1345	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
[1]	1346	ENDIF
	1347
[151]	1348
	1349	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
[1]	1350	!
[151]	1351	!-- Initialize old timelevels needed for radiation boundary conditions
[3182]	1352	IF ( bc_radiation_l ) THEN
[151]	1353	u_m_l(:,:,:) = u(:,:,1:2)
	1354	v_m_l(:,:,:) = v(:,:,0:1)
	1355	w_m_l(:,:,:) = w(:,:,0:1)
	1356	ENDIF
[3182]	1357	IF ( bc_radiation_r ) THEN
[151]	1358	u_m_r(:,:,:) = u(:,:,nx-1:nx)
	1359	v_m_r(:,:,:) = v(:,:,nx-1:nx)
	1360	w_m_r(:,:,:) = w(:,:,nx-1:nx)
	1361	ENDIF
[3182]	1362	IF ( bc_radiation_s ) THEN
[151]	1363	u_m_s(:,:,:) = u(:,0:1,:)
	1364	v_m_s(:,:,:) = v(:,1:2,:)
	1365	w_m_s(:,:,:) = w(:,0:1,:)
	1366	ENDIF
[3182]	1367	IF ( bc_radiation_n ) THEN
[151]	1368	u_m_n(:,:,:) = u(:,ny-1:ny,:)
	1369	v_m_n(:,:,:) = v(:,ny-1:ny,:)
	1370	w_m_n(:,:,:) = w(:,ny-1:ny,:)
	1371	ENDIF
[4648]	1372
[151]	1373	ENDIF
[680]	1374
[667]	1375	!
	1376	!-- Calculate the initial volume flow at the right and north boundary
[709]	1377	IF ( conserve_volume_flow ) THEN
[151]	1378
[767]	1379	IF ( use_prescribed_profile_data ) THEN
[667]	1380
[1340]	1381	volume_flow_initial_l = 0.0_wp
	1382	volume_flow_area_l = 0.0_wp
[732]	1383
[667]	1384	IF ( nxr == nx ) THEN
	1385	DO j = nys, nyn
[2232]	1386	DO k = nzb+1, nzt
[4648]	1387	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1388	u_init(k) * dzw(k) &
	1389	* MERGE( 1.0_wp, 0.0_wp, &
	1390	BTEST( wall_flags_total_0(k,j,nxr), 1 ) &
	1391	)
[2232]	1392
[4648]	1393	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1394	* MERGE( 1.0_wp, 0.0_wp, &
	1395	BTEST( wall_flags_total_0(k,j,nxr), 1 ) &
	1396	)
[767]	1397	ENDDO
	1398	ENDDO
	1399	ENDIF
[4648]	1400
[767]	1401	IF ( nyn == ny ) THEN
	1402	DO i = nxl, nxr
[2232]	1403	DO k = nzb+1, nzt
[4648]	1404	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1405	v_init(k) * dzw(k) &
	1406	* MERGE( 1.0_wp, 0.0_wp, &
	1407	BTEST( wall_flags_total_0(k,nyn,i), 2 ) &
	1408	)
	1409	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1410	* MERGE( 1.0_wp, 0.0_wp, &
	1411	BTEST( wall_flags_total_0(k,nyn,i), 2 ) &
	1412	)
[767]	1413	ENDDO
	1414	ENDDO
	1415	ENDIF
	1416
	1417	#if defined( __parallel )
[4648]	1418	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1), 2, MPI_REAL, &
	1419	MPI_SUM, comm2d, ierr )
	1420	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), 2, MPI_REAL, MPI_SUM, &
	1421	comm2d, ierr )
[767]	1422
	1423	#else
	1424	volume_flow_initial = volume_flow_initial_l
	1425	volume_flow_area = volume_flow_area_l
[4648]	1426	#endif
[767]	1427
	1428	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1429
[1340]	1430	volume_flow_initial_l = 0.0_wp
	1431	volume_flow_area_l = 0.0_wp
[767]	1432
	1433	IF ( nxr == nx ) THEN
	1434	DO j = nys, nyn
[2232]	1435	DO k = nzb+1, nzt
[4648]	1436	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1437	hom_sum(k,1,0) * dzw(k) &
	1438	* MERGE( 1.0_wp, 0.0_wp, &
	1439	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1440	)
	1441	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1442	* MERGE( 1.0_wp, 0.0_wp, &
	1443	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1444	)
[667]	1445	ENDDO
	1446	ENDDO
	1447	ENDIF
[4648]	1448
[667]	1449	IF ( nyn == ny ) THEN
	1450	DO i = nxl, nxr
[2232]	1451	DO k = nzb+1, nzt
[4648]	1452	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1453	hom_sum(k,2,0) * dzw(k) &
	1454	* MERGE( 1.0_wp, 0.0_wp, &
	1455	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1456	)
	1457	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1458	* MERGE( 1.0_wp, 0.0_wp, &
	1459	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1460	)
[667]	1461	ENDDO
	1462	ENDDO
	1463	ENDIF
	1464
[732]	1465	#if defined( __parallel )
[4648]	1466	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1), 2, MPI_REAL, &
	1467	MPI_SUM, comm2d, ierr )
	1468	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), 2, MPI_REAL, MPI_SUM, &
	1469	comm2d, ierr )
[732]	1470
	1471	#else
	1472	volume_flow_initial = volume_flow_initial_l
	1473	volume_flow_area = volume_flow_area_l
[4648]	1474	#endif
[732]	1475
[667]	1476	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	1477
[1340]	1478	volume_flow_initial_l = 0.0_wp
	1479	volume_flow_area_l = 0.0_wp
[732]	1480
[667]	1481	IF ( nxr == nx ) THEN
	1482	DO j = nys, nyn
[2232]	1483	DO k = nzb+1, nzt
[4648]	1484	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1485	u(k,j,nx) * dzw(k) &
	1486	* MERGE( 1.0_wp, 0.0_wp, &
	1487	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1488	)
	1489	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1490	* MERGE( 1.0_wp, 0.0_wp, &
	1491	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1492	)
[667]	1493	ENDDO
	1494	ENDDO
	1495	ENDIF
[4648]	1496
[667]	1497	IF ( nyn == ny ) THEN
	1498	DO i = nxl, nxr
[2232]	1499	DO k = nzb+1, nzt
[4648]	1500	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1501	v(k,ny,i) * dzw(k) &
	1502	* MERGE( 1.0_wp, 0.0_wp, &
	1503	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1504	)
	1505	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1506	* MERGE( 1.0_wp, 0.0_wp, &
	1507	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1508	)
[667]	1509	ENDDO
	1510	ENDDO
	1511	ENDIF
	1512
	1513	#if defined( __parallel )
[4648]	1514	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1), 2, MPI_REAL, &
	1515	MPI_SUM, comm2d, ierr )
	1516	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), 2, MPI_REAL, MPI_SUM, &
	1517	comm2d, ierr )
[667]	1518
	1519	#else
[732]	1520	volume_flow_initial = volume_flow_initial_l
	1521	volume_flow_area = volume_flow_area_l
[4648]	1522	#endif
[667]	1523
[732]	1524	ENDIF
	1525
[151]	1526	!
[4648]	1527	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated from u\|v_bulk instead
[680]	1528	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
	1529	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
	1530	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
	1531	ENDIF
[667]	1532
[680]	1533	ENDIF
[2232]	1534	!
[4648]	1535	!-- In the following, surface properties can be further initialized with input from static driver
	1536	!-- file.
	1537	!-- At the moment this affects only default surfaces. For example, roughness length or sensible /
	1538	!-- latent heat fluxes can be initialized heterogeneously for default surfaces. Therefore, a generic
	1539	!-- routine from netcdf_data_input_mod is called to read a 2D array.
[4150]	1540	IF ( input_pids_static ) THEN
	1541	!
[4151]	1542	!-- Allocate memory for possible static input
	1543	ALLOCATE( tmp_2d%var(nys:nyn,nxl:nxr) )
	1544	tmp_2d%var = 0.0_wp
	1545	!
[4150]	1546	!-- Open the static input file
[4151]	1547	#if defined( __netcdf )
[4648]	1548	CALL open_read_file( TRIM( input_file_static ) // &
	1549	TRIM( coupling_char ), pids_id )
	1550
[4186]	1551	CALL inquire_num_variables( pids_id, num_var_pids )
[4150]	1552	!
	1553	!-- Allocate memory to store variable names and read them
[4186]	1554	ALLOCATE( vars_pids(1:num_var_pids) )
	1555	CALL inquire_variable_names( pids_id, vars_pids )
[4150]	1556	!
[4648]	1557	!-- Input roughness length.
[4186]	1558	IF ( check_existence( vars_pids, 'z0' ) ) THEN
[4150]	1559	!
	1560	!-- Read _FillValue attribute
[4648]	1561	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, .FALSE., 'z0' )
	1562	!
	1563	!-- Read variable
	1564	CALL get_variable( pids_id, 'z0', tmp_2d%var, nxl, nxr, nys, nyn )
	1565	!
	1566	!-- Initialize roughness length. Note, z0 will be only initialized at default-type surfaces.
	1567	!-- At natural or urban z0 is implicitly initialized by the respective parameter lists.
	1568	!-- Initialize horizontal surface elements.
	1569	CALL init_single_surface_properties( surf_def_h(0)%z0, tmp_2d%var, surf_def_h(0)%ns, &
	1570	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
	1571	!
	1572	!-- Initialize roughness also at vertical surface elements.
	1573	!-- Note, the actual 2D input arrays are only defined on the subdomain. Therefore, pass the
	1574	!-- index arrays with their respective offset values.
	1575	DO l = 0, 3
	1576	CALL init_single_surface_properties( surf_def_v(l)%z0, tmp_2d%var, surf_def_v(l)%ns, &
	1577	tmp_2d%fill, surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1578	surf_def_v(l)%j+surf_def_v(l)%joff )
[4150]	1579	ENDDO
[4648]	1580
[4150]	1581	ENDIF
	1582	!
[4648]	1583	!-- Input surface sensible heat flux.
[4514]	1584	IF ( check_existence( vars_pids, 'shf' ) ) THEN
	1585	!
	1586	!-- Read _FillValue attribute
[4648]	1587	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, .FALSE., 'shf' )
[4514]	1588	!
	1589	!-- Read variable
[4648]	1590	CALL get_variable( pids_id, 'shf', tmp_2d%var, nxl, nxr, nys, nyn )
[4514]	1591	!
[4648]	1592	!-- Initialize heat flux. Note, shf will be only initialized at default-type surfaces. At
	1593	!-- natural or urban shf is implicitly initialized by the respective parameter lists.
[4514]	1594	!-- Initialize horizontal surface elements.
[4648]	1595	CALL init_single_surface_properties( surf_def_h(0)%shf, tmp_2d%var, surf_def_h(0)%ns, &
	1596	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
[4514]	1597	!
	1598	!-- Initialize heat flux also at vertical surface elements.
[4648]	1599	!-- Note, the actual 2D input arrays are only defined on the subdomain. Therefore, pass the
	1600	!-- index arrays with their respective offset values.
[4514]	1601	DO l = 0, 3
[4648]	1602	CALL init_single_surface_properties( surf_def_v(l)%shf, tmp_2d%var, surf_def_v(l)%ns, &
	1603	tmp_2d%fill, surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1604	surf_def_v(l)%j+surf_def_v(l)%joff )
[4514]	1605	ENDDO
	1606
	1607	ENDIF
	1608	!
[4791]	1609	!-- Input surface latent heat flux.
	1610	IF ( humidity ) THEN
	1611	IF ( check_existence( vars_pids, 'qsws' ) ) THEN
[4514]	1612	!
[4791]	1613	!-- Read _FillValue attribute
	1614	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, .FALSE., 'qsws' )
[4514]	1615	!
[4791]	1616	!-- Read variable
	1617	CALL get_variable( pids_id, 'qsws', tmp_2d%var, nxl, nxr, nys, nyn )
[4514]	1618	!
[4791]	1619	!-- Initialize latent heat flux. Note, qsws will be only initialized at default-type surfaces.
	1620	!-- At natural or urban qsws is implicitly initialized by the respective parameter lists.
	1621	!-- Initialize horizontal surface elements.
	1622	CALL init_single_surface_properties( surf_def_h(0)%qsws, tmp_2d%var, surf_def_h(0)%ns,&
	1623	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
[4514]	1624	!
[4791]	1625	!-- Initialize latent heat flux also at vertical surface elements.
	1626	!-- Note, the actual 2D input arrays are only defined on the subdomain. Therefore, pass the
	1627	!-- index arrays with their respective offset values.
	1628	DO l = 0, 3
	1629	CALL init_single_surface_properties( surf_def_v(l)%qsws, tmp_2d%var, &
	1630	surf_def_v(l)%ns, tmp_2d%fill, &
	1631	surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1632	surf_def_v(l)%j+surf_def_v(l)%joff )
	1633	ENDDO
[4514]	1634
[4791]	1635	ENDIF
[4514]	1636	ENDIF
	1637	!
[4791]	1638	!-- Input passive scalar flux.
	1639	IF ( passive_scalar ) THEN
	1640	IF ( check_existence( vars_pids, 'ssws' ) ) THEN
	1641	!
	1642	!-- Read _FillValue attribute
	1643	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, .FALSE., 'ssws' )
	1644	!
	1645	!-- Read variable
	1646	CALL get_variable( pids_id, 'ssws', tmp_2d%var, nxl, nxr, nys, nyn )
	1647	!
	1648	!-- Initialize passive scalar flux. Initialize horizontal surface elements.
	1649	CALL init_single_surface_properties( surf_def_h(0)%ssws, tmp_2d%var, surf_def_h(0)%ns,&
	1650	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
	1651
	1652	DO l = 0, 3
	1653	CALL init_single_surface_properties( surf_def_v(l)%ssws, tmp_2d%var, &
	1654	surf_def_v(l)%ns, tmp_2d%fill, &
	1655	surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1656	surf_def_v(l)%j+surf_def_v(l)%joff )
	1657	ENDDO
	1658
	1659	ENDIF
	1660	ENDIF
	1661	!
[4648]	1662	!-- Additional variables, can be initialized the
[4150]	1663	!-- same way.
[4514]	1664
[4150]	1665	!
[4187]	1666	!-- Finally, close the input file and deallocate temporary arrays
	1667	DEALLOCATE( vars_pids )
[4648]	1668
[4186]	1669	CALL close_input_file( pids_id )
[4151]	1670	#endif
	1671	DEALLOCATE( tmp_2d%var )
[4150]	1672	ENDIF
	1673	!
[4648]	1674	!-- Finally, if random_heatflux is set, disturb shf at horizontal surfaces. Actually, this should be
	1675	!-- done in surface_mod, where all other initializations of surface quantities are done. However,
	1676	!-- this would create a ring dependency, hence, it is done here. Maybe delete disturb_heatflux and
	1677	!-- tranfer the respective code directly into the initialization in surface_mod.
	1678	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[2232]	1679	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[4648]	1680
	1681	IF ( use_surface_fluxes .AND. constant_heatflux .AND. random_heatflux ) THEN
[2232]	1682	IF ( surf_def_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_def_h(0) )
[4671]	1683	IF ( surf_lsm_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_lsm_h(0) )
	1684	IF ( surf_usm_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_usm_h(0) )
[2232]	1685	ENDIF
	1686	ENDIF
[680]	1687
[787]	1688	!
[4648]	1689	!-- Compute total sum of grid points and the mean surface level height for each statistic region.
	1690	!-- These are mainly used for horizontal averaging of turbulence statistics.
	1691	!-- ngp_2dh: number of grid points of a horizontal cross section through the respective statistic
	1692	!-- region
[3747]	1693	!-- ngp_3d: number of grid points of the respective statistic region
[2696]	1694	ngp_2dh_outer_l = 0
	1695	ngp_2dh_outer = 0
	1696	ngp_2dh_s_inner_l = 0
	1697	ngp_2dh_s_inner = 0
	1698	ngp_2dh_l = 0
	1699	ngp_2dh = 0
	1700	ngp_3d_inner_l = 0.0_wp
	1701	ngp_3d_inner = 0
	1702	ngp_3d = 0
	1703	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
	1704
	1705	mean_surface_level_height = 0.0_wp
	1706	mean_surface_level_height_l = 0.0_wp
	1707	!
	1708	!-- To do: New concept for these non-topography grid points!
	1709	DO sr = 0, statistic_regions
	1710	DO i = nxl, nxr
	1711	DO j = nys, nyn
	1712	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
	1713	!
	1714	!-- All xy-grid points
	1715	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1716	!
[4648]	1717	!-- Determine mean surface-level height. In case of downward-facing walls are present,
	1718	!-- more than one surface level exist.
	1719	!-- In this case, use the lowest surface-level height.
	1720	IF ( surf_def_h(0)%start_index(j,i) <= surf_def_h(0)%end_index(j,i) ) THEN
[2696]	1721	m = surf_def_h(0)%start_index(j,i)
	1722	k = surf_def_h(0)%k(m)
[4648]	1723	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) + zw(k-1)
[2696]	1724	ENDIF
[4671]	1725	IF ( surf_lsm_h(0)%start_index(j,i) <= surf_lsm_h(0)%end_index(j,i) ) THEN
	1726	m = surf_lsm_h(0)%start_index(j,i)
	1727	k = surf_lsm_h(0)%k(m)
[4648]	1728	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) + zw(k-1)
[2696]	1729	ENDIF
[4671]	1730	IF ( surf_usm_h(0)%start_index(j,i) <= surf_usm_h(0)%end_index(j,i) ) THEN
	1731	m = surf_usm_h(0)%start_index(j,i)
	1732	k = surf_usm_h(0)%k(m)
[4648]	1733	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) + zw(k-1)
[2696]	1734	ENDIF
	1735
	1736	k_surf = k - 1
	1737
	1738	DO k = nzb, nzt+1
	1739	!
	1740	!-- xy-grid points above topography
[4648]	1741	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + &
	1742	MERGE( 1, 0, BTEST( wall_flags_total_0(k,j,i), 24 ) )
[2696]	1743
[4648]	1744	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + &
	1745	MERGE( 1, 0, BTEST( wall_flags_total_0(k,j,i), 22 ) )
[2696]	1746
	1747	ENDDO
	1748	!
	1749	!-- All grid points of the total domain above topography
	1750	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + ( nz - k_surf + 2 )
	1751
	1752
	1753
	1754	ENDIF
	1755	ENDDO
	1756	ENDDO
	1757	ENDDO
[3747]	1758
[2696]	1759	sr = statistic_regions + 1
	1760	#if defined( __parallel )
	1761	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1762	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
	1763	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1764	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, MPI_INTEGER, MPI_SUM, &
[2696]	1765	comm2d, ierr )
	1766	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1767	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), (nz+2)*sr, MPI_INTEGER, &
	1768	MPI_SUM, comm2d, ierr )
[2696]	1769	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1770	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, MPI_SUM, comm2d, &
	1771	ierr )
[2696]	1772	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
	1773	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1774	CALL MPI_ALLREDUCE( mean_surface_level_height_l(0), mean_surface_level_height(0), sr, MPI_REAL,&
[2696]	1775	MPI_SUM, comm2d, ierr )
	1776	mean_surface_level_height = mean_surface_level_height / REAL( ngp_2dh )
	1777	#else
	1778	ngp_2dh = ngp_2dh_l
	1779	ngp_2dh_outer = ngp_2dh_outer_l
	1780	ngp_2dh_s_inner = ngp_2dh_s_inner_l
	1781	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
	1782	mean_surface_level_height = mean_surface_level_height_l / REAL( ngp_2dh_l )
	1783	#endif
	1784
[4648]	1785	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
[2696]	1786	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
	1787
	1788	!
[4648]	1789	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics, buoyancy, etc. A
	1790	!-- zero value will occur for cases where all grid points of the respective subdomain lie below the
	1791	!-- surface topography
	1792	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
	1793	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), ngp_3d_inner(:) )
	1794	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
[2696]	1795
[4648]	1796	DEALLOCATE( mean_surface_level_height_l, ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, &
	1797	ngp_3d_inner_tmp )
[4548]	1798
[2696]	1799	!
[4648]	1800	!-- Initializae 3D offline nesting in COSMO model and read data from
[3347]	1801	!-- external NetCDF file.
	1802	IF ( nesting_offline ) CALL nesting_offl_init
	1803	!
[787]	1804	!-- Initialize quantities for special advections schemes
	1805	CALL init_advec
[680]	1806
[667]	1807	!
[680]	1808	!-- Impose random perturbation on the horizontal velocity field and then
	1809	!-- remove the divergences from the velocity field at the initial stage
[4648]	1810	IF ( create_disturbances .AND. disturbance_energy_limit /= 0.0_wp .AND. &
	1811	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[680]	1812	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
	1813
[4648]	1814	IF ( debug_output ) THEN
	1815	CALL debug_message( 'creating disturbances + applying pressure solver', 'start' )
	1816	ENDIF
[3849]	1817	!
	1818	!-- Needed for both disturb_field and pres
	1819	!$ACC DATA &
	1820	!$ACC CREATE(tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1821	!$ACC COPY(u(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1822	!$ACC COPY(v(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
	1823
[2232]	1824	CALL disturb_field( 'u', tend, u )
	1825	CALL disturb_field( 'v', tend, v )
[1384]	1826
[3849]	1827	!$ACC DATA &
	1828	!$ACC CREATE(d(nzb+1:nzt,nys:nyn,nxl:nxr)) &
	1829	!$ACC COPY(w(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1830	!$ACC COPY(p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1831	!$ACC COPYIN(rho_air(nzb:nzt+1), rho_air_zw(nzb:nzt+1)) &
	1832	!$ACC COPYIN(ddzu(1:nzt+1), ddzw(1:nzt+1)) &
[4346]	1833	!$ACC COPYIN(wall_flags_total_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
[3849]	1834	!$ACC COPYIN(bc_h(0:1)) &
	1835	!$ACC COPYIN(bc_h(0)%i(1:bc_h(0)%ns)) &
	1836	!$ACC COPYIN(bc_h(0)%j(1:bc_h(0)%ns)) &
	1837	!$ACC COPYIN(bc_h(0)%k(1:bc_h(0)%ns)) &
	1838	!$ACC COPYIN(bc_h(1)%i(1:bc_h(1)%ns)) &
	1839	!$ACC COPYIN(bc_h(1)%j(1:bc_h(1)%ns)) &
	1840	!$ACC COPYIN(bc_h(1)%k(1:bc_h(1)%ns))
	1841
[680]	1842	n_sor = nsor_ini
	1843	CALL pres
	1844	n_sor = nsor
[1384]	1845
[3849]	1846	!$ACC END DATA
	1847	!$ACC END DATA
	1848
[4648]	1849	IF ( debug_output ) THEN
	1850	CALL debug_message( 'creating disturbances + applying pressure solver', 'end' )
	1851	ENDIF
[3987]	1852
[680]	1853	ENDIF
	1854
[3294]	1855	IF ( .NOT. ocean_mode ) THEN
[3274]	1856
	1857	ALLOCATE( hyp(nzb:nzt+1) )
	1858	ALLOCATE( d_exner(nzb:nzt+1) )
	1859	ALLOCATE( exner(nzb:nzt+1) )
	1860	ALLOCATE( hyrho(nzb:nzt+1) )
[1849]	1861	!
[3274]	1862	!-- Check temperature in case of too large domain height
	1863	DO k = nzb, nzt+1
[4648]	1864	IF ( ( pt_surface * exner_function( surface_pressure * 100.0_wp ) - g/c_p * zu(k) ) &
	1865	< 0.0_wp ) THEN
	1866	WRITE( message_string, * ) 'absolute temperature < 0.0 at zu(', k, ') = ', zu(k)
[3685]	1867	CALL message( 'init_3d_model', 'PA0142', 1, 2, 0, 6, 0 )
[3274]	1868	ENDIF
	1869	ENDDO
	1870
	1871	!
	1872	!-- Calculate vertical profile of the hydrostatic pressure (hyp)
[4648]	1873	hyp = barometric_formula( zu, pt_surface * exner_function( surface_pressure * 100.0_wp ),&
	1874	surface_pressure * 100.0_wp )
	1875	d_exner = exner_function_invers( hyp )
	1876	exner = 1.0_wp / exner_function_invers( hyp )
	1877	hyrho = ideal_gas_law_rho_pt( hyp, pt_init )
[3274]	1878	!
	1879	!-- Compute reference density
[4648]	1880	rho_surface = ideal_gas_law_rho( surface_pressure * 100.0_wp, &
	1881	pt_surface * exner_function( surface_pressure * 100.0_wp ) )
[3274]	1882
[96]	1883	ENDIF
[1]	1884
	1885	!
	1886	!-- If required, initialize particles
[3159]	1887	IF ( agents_active ) CALL mas_init
	1888	!
[3937]	1889	!-- Initialization of synthetic turbulence generator
	1890	IF ( use_syn_turb_gen ) CALL stg_init
[2696]	1891	!
[3685]	1892	!-- Initializing actions for all other modules
	1893	CALL module_interface_init
[2696]	1894	!
[4648]	1895	!-- Initialize surface layer (done after LSM as roughness length are required for initialization
[3685]	1896	IF ( constant_flux_layer ) CALL init_surface_layer_fluxes
[2977]	1897	!
[3421]	1898	!-- Initialize surface data output
[3685]	1899	IF ( surface_output ) CALL surface_data_output_init
[3472]	1900	!
[4648]	1901	!-- Initialize the ws-scheme.
	1902	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
[3711]	1903	!
	1904	!-- Perform post-initializing checks for all other modules
	1905	CALL module_interface_init_checks
[1]	1906
	1907	!
[4648]	1908	!-- Initialize surface forcing corresponding to large-scale forcing. Therein,
[4548]	1909	!-- initialize heat-fluxes, etc. via datatype. Revise it later!
[4648]	1910	IF ( large_scale_forcing .AND. lsf_surf ) THEN
[4548]	1911	IF ( use_surface_fluxes .AND. constant_heatflux ) THEN
[4648]	1912	CALL ls_forcing_surf( simulated_time )
[4548]	1913	ENDIF
	1914	ENDIF
	1915	!
[4648]	1916	!-- Setting weighting factors for calculation of perturbation pressure and turbulent quantities from
	1917	!-- the RK substeps.
	1918	IF ( TRIM( timestep_scheme ) == 'runge-kutta-3' ) THEN ! for RK3-method
[709]	1919
[1322]	1920	weight_substep(1) = 1._wp/6._wp
	1921	weight_substep(2) = 3._wp/10._wp
	1922	weight_substep(3) = 8._wp/15._wp
[709]	1923
[1322]	1924	weight_pres(1) = 1._wp/3._wp
	1925	weight_pres(2) = 5._wp/12._wp
	1926	weight_pres(3) = 1._wp/4._wp
[709]	1927
[4648]	1928	ELSEIF ( TRIM( timestep_scheme ) == 'runge-kutta-2' ) THEN ! for RK2-method
[709]	1929
[1322]	1930	weight_substep(1) = 1._wp/2._wp
	1931	weight_substep(2) = 1._wp/2._wp
[4648]	1932
[1322]	1933	weight_pres(1) = 1._wp/2._wp
[4648]	1934	weight_pres(2) = 1._wp/2._wp
[709]	1935
[1001]	1936	ELSE ! for Euler-method
[709]	1937
[4648]	1938	weight_substep(1) = 1.0_wp
	1939	weight_pres(1) = 1.0_wp
[709]	1940
[673]	1941	ENDIF
	1942
	1943	!
[1]	1944	!-- Initialize Rayleigh damping factors
[1340]	1945	rdf = 0.0_wp
	1946	rdf_sc = 0.0_wp
	1947	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
[3294]	1948
	1949	IF ( .NOT. ocean_mode ) THEN
[108]	1950	DO k = nzb+1, nzt
	1951	IF ( zu(k) >= rayleigh_damping_height ) THEN
[4648]	1952	rdf(k) = rayleigh_damping_factor * &
	1953	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
	1954	/ ( zu(nzt) - rayleigh_damping_height ) ) &
	1955	)**2
[108]	1956	ENDIF
	1957	ENDDO
	1958	ELSE
[3294]	1959	!
[4648]	1960	!-- In ocean mode, rayleigh damping is applied in the lower part of the model domain
[108]	1961	DO k = nzt, nzb+1, -1
	1962	IF ( zu(k) <= rayleigh_damping_height ) THEN
[4648]	1963	rdf(k) = rayleigh_damping_factor * &
	1964	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
	1965	/ ( rayleigh_damping_height - zu(nzb+1) ) ) &
	1966	)**2
[108]	1967	ENDIF
	1968	ENDDO
	1969	ENDIF
[3294]	1970
[1]	1971	ENDIF
[785]	1972	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
[1]	1973
	1974	!
[4648]	1975	!-- Initialize the starting level and the vertical smoothing factor used for the external pressure
	1976	!-- gradient
[1340]	1977	dp_smooth_factor = 1.0_wp
[240]	1978	IF ( dp_external ) THEN
	1979	!
[4648]	1980	!-- Set the starting level dp_level_ind_b only if it has not been set before (e.g. in init_grid).
[240]	1981	IF ( dp_level_ind_b == 0 ) THEN
	1982	ind_array = MINLOC( ABS( dp_level_b - zu ) )
[4648]	1983	dp_level_ind_b = ind_array(1) - 1 + nzb
[240]	1984	! MINLOC uses lower array bound 1
	1985	ENDIF
	1986	IF ( dp_smooth ) THEN
[1340]	1987	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
[240]	1988	DO k = dp_level_ind_b+1, nzt
[4648]	1989	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
	1990	( REAL( k - dp_level_ind_b, KIND=wp ) / &
	1991	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
[240]	1992	ENDDO
	1993	ENDIF
	1994	ENDIF
	1995
	1996	!
[4648]	1997	!-- Initialize damping zone for the potential temperature in case of non-cyclic lateral boundaries.
	1998	!-- The damping zone has the maximum value at the inflow boundary and decreases to zero at
	1999	!-- pt_damping_width.
[1340]	2000	ptdf_x = 0.0_wp
	2001	ptdf_y = 0.0_wp
[1159]	2002	IF ( bc_lr_dirrad ) THEN
[996]	2003	DO i = nxl, nxr
[978]	2004	IF ( ( i * dx ) < pt_damping_width ) THEN
[4648]	2005	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
	2006	REAL( pt_damping_width - i * dx, KIND=wp ) / &
	2007	REAL( pt_damping_width, KIND=wp ) ) )**2
	2008	ENDIF
[73]	2009	ENDDO
[1159]	2010	ELSEIF ( bc_lr_raddir ) THEN
[996]	2011	DO i = nxl, nxr
[978]	2012	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
[4648]	2013	ptdf_x(i) = pt_damping_factor * SIN( pi * 0.5_wp * &
	2014	( ( i - nx ) * dx + pt_damping_width ) / &
	2015	REAL( pt_damping_width, KIND=wp ) )**2
[73]	2016	ENDIF
[4648]	2017	ENDDO
[1159]	2018	ELSEIF ( bc_ns_dirrad ) THEN
[996]	2019	DO j = nys, nyn
[978]	2020	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
[4648]	2021	ptdf_y(j) = pt_damping_factor * SIN( pi * 0.5_wp * &
	2022	( ( j - ny ) * dy + pt_damping_width ) / &
	2023	REAL( pt_damping_width, KIND=wp ) )**2
[1]	2024	ENDIF
[4648]	2025	ENDDO
[1159]	2026	ELSEIF ( bc_ns_raddir ) THEN
[996]	2027	DO j = nys, nyn
[978]	2028	IF ( ( j * dy ) < pt_damping_width ) THEN
[4648]	2029	ptdf_y(j) = pt_damping_factor * SIN( pi * 0.5_wp * &
	2030	( pt_damping_width - j * dy ) / &
	2031	REAL( pt_damping_width, KIND=wp ) )**2
[1]	2032	ENDIF
[73]	2033	ENDDO
[1]	2034	ENDIF
[51]	2035
[1]	2036	!
[4648]	2037	!-- Input binary data file is not needed anymore. This line must be placed after call of user_init!
[1]	2038	CALL close_file( 13 )
[2934]	2039	!
[4648]	2040	!-- In case of nesting, put an barrier to assure that all parent and child domains finished
	2041	!-- initialization.
[2934]	2042	#if defined( __parallel )
	2043	IF ( nested_run ) CALL MPI_BARRIER( MPI_COMM_WORLD, ierr )
	2044	#endif
[1]	2045
[2934]	2046
[3987]	2047	CALL location_message( 'model initialization', 'finished' )
[1]	2048
	2049	END SUBROUTINE init_3d_model

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source: palm/trunk/SOURCE/init_3d_model.f90 @ 4811

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