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init_3d_model.f90 @ 4899

Last change on this file since 4899 was 4878, checked in by suehring, 4 years ago

Rename resize_array into add_ghost_layers; remove number of passed indices; replace subroutine calls with interface name

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/palm/branches/chemistry/SOURCE/init_3d_model.f90	2047-3190,3218-3297
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File size: 85.2 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	!
[4828]	16	! Copyright 1997-2021 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 4878 2021-02-18 09:47:49Z raasch $
[4878]	26	! Rename resize_array into add_ghost_layers and remove number of passed indices
	27	!
	28	! 4877 2021-02-17 16:17:35Z suehring
[4877]	29	! Bugfix in initialization of vertical surfaces with roughness and surface heat fluxes
	30	!
	31	! 4848 2021-01-21 15:51:51Z gronemeier
[4848]	32	! replaced use_syn_turb_gen by syn_turb_gen
	33	!
	34	! 4845 2021-01-18 11:15:37Z raasch
[4845]	35	! removed allocation and initialization of arrays required for radiation boundary conditions
	36	!
	37	! 4828 2021-01-05 11:21:41Z Giersch
[4791]	38	! Add possibility to initialize surface flux of passive scalar via static driver
	39	!
	40	! 4783 2020-11-13 13:58:45Z raasch
[4783]	41	! bugfix for reading restart data with MPI-I/O (does not work with blockwise I/O)
	42	!
	43	! 4680 2020-09-16 10:20:34Z gronemeier
[4680]	44	! Add option to fix date or time of the simulation
	45	!
	46	! 4671 2020-09-09 20:27:58Z pavelkrc
[4671]	47	! Implementation of downward facing USM and LSM surfaces
	48	!
	49	! 4648 2020-08-25 07:52:08Z raasch
[4648]	50	! file re-formatted to follow the PALM coding standard
	51	!
	52	! 4548 2020-05-28 19:36:45Z suehring
[4548]	53	! Bugfix, move call for lsf_forcing_surf after lsf_init is called
[4648]	54	!
[4548]	55	! 4514 2020-04-30 16:29:59Z suehring
[4648]	56	! Add possibility to initialize surface sensible and latent heat fluxes via a static driver.
	57	!
[4514]	58	! 4493 2020-04-10 09:49:43Z pavelkrc
[4648]	59	! Overwrite u_init, v_init, pt_init, q_init and s_init with hom for all cyclic_fill-cases, not only
	60	! for turbulent_inflow = .TRUE.
	61	!
[4365]	62	! 4360 2020-01-07 11:25:50Z suehring
[4648]	63	! Introduction of wall_flags_total_0, which currently sets bits based on static topography
	64	! information used in wall_flags_static_0
	65	!
[4346]	66	! 4329 2019-12-10 15:46:36Z motisi
[4329]	67	! Renamed wall_flags_0 to wall_flags_static_0
[4648]	68	!
[4329]	69	! 4286 2019-10-30 16:01:14Z resler
[4227]	70	! implement new palm_date_time_mod
[4648]	71	!
[4227]	72	! 4223 2019-09-10 09:20:47Z gronemeier
[4648]	73	! Deallocate temporary string array since it may be re-used to read different input data in other
	74	! modules
	75	!
[4187]	76	! 4186 2019-08-23 16:06:14Z suehring
[4648]	77	! Design change, use variables defined in netcdf_data_input_mod to read netcd variables rather than
	78	! define local ones.
	79	!
[4186]	80	! 4185 2019-08-23 13:49:38Z oliver.maas
[4185]	81	! For initializing_actions = ' cyclic_fill':
[4648]	82	! Overwrite u_init, v_init, pt_init, q_init and s_init with the (temporally) and horizontally
	83	! averaged vertical profiles from the end of the prerun, because these profiles shall be used as the
	84	! basic state for the rayleigh damping and the pt_damping.
	85	!
[4185]	86	! 4182 2019-08-22 15:20:23Z scharf
[4182]	87	! Corrected "Former revisions" section
[4648]	88	!
[4182]	89	! 4168 2019-08-16 13:50:17Z suehring
[4168]	90	! Replace function get_topography_top_index by topo_top_ind
[4648]	91	!
[4168]	92	! 4151 2019-08-09 08:24:30Z suehring
[4151]	93	! Add netcdf directive around input calls (fix for last commit)
[4648]	94	!
[4151]	95	! 4150 2019-08-08 20:00:47Z suehring
[4648]	96	! Input of additional surface variables independent on land- or urban-surface model
	97	!
[4150]	98	! 4131 2019-08-02 11:06:18Z monakurppa
[4131]	99	! Allocate sums and sums_l to allow profile output for salsa variables.
[4648]	100	!
[4131]	101	! 4130 2019-08-01 13:04:13Z suehring
[4648]	102	! Effectively reduce 3D initialization to 1D initial profiles. This is because 3D initialization
	103	! produces structures in the w-component that are correlated with the processor grid for some
	104	! unknown reason
	105	!
[4130]	106	! 4090 2019-07-11 15:06:47Z Giersch
[4090]	107	! Unused variables removed
[4648]	108	!
[4090]	109	! 4088 2019-07-11 13:57:56Z Giersch
[4088]	110	! Pressure and density profile calculations revised using basic functions
[4648]	111	!
[4088]	112	! 4048 2019-06-21 21:00:21Z knoop
[4028]	113	! Further modularization of particle code components
[4648]	114	!
[4028]	115	! 4017 2019-06-06 12:16:46Z schwenkel
[4648]	116	! Convert most location messages to debug messages to reduce output in job logfile to a minimum
	117	!
[3939]	118	! unused variable removed
[4648]	119	!
[3939]	120	! 3937 2019-04-29 15:09:07Z suehring
[4648]	121	! Move initialization of synthetic turbulence generator behind initialization of offline nesting.
	122	! Remove call for stg_adjust, as this is now already done in stg_init.
	123	!
[3937]	124	! 3900 2019-04-16 15:17:43Z suehring
[3900]	125	! Fix problem with LOD = 2 initialization
[4648]	126	!
[3900]	127	! 3885 2019-04-11 11:29:34Z kanani
[4648]	128	! Changes related to global restructuring of location messages and introduction of additional debug
	129	! messages
	130	!
[3885]	131	! 3849 2019-04-01 16:35:16Z knoop
[3747]	132	! Move initialization of rmask before initializing user_init_arrays
[4648]	133	!
[3747]	134	! 3711 2019-01-31 13:44:26Z knoop
[3711]	135	! Introduced module_interface_init_checks for post-init checks in modules
[4648]	136	!
[3711]	137	! 3700 2019-01-26 17:03:42Z knoop
[3685]	138	! Some interface calls moved to module_interface + cleanup
[4648]	139	!
[3685]	140	! 3648 2019-01-02 16:35:46Z suehring
[3648]	141	! Rename subroutines for surface-data output
[3569]	142	!
[4182]	143	! Revision 1.1 1998/03/09 16:22:22 raasch
	144	! Initial revision
	145	!
	146	!
[1]	147	! Description:
	148	! ------------
[1682]	149	!> Allocation of arrays and initialization of the 3D model via
	150	!> a) pre-run the 1D model
	151	!> or
	152	!> b) pre-set constant linear profiles
	153	!> or
	154	!> c) read values of a previous run
[4648]	155	!--------------------------------------------------------------------------------------------------!
[1682]	156	SUBROUTINE init_3d_model
[1]	157
[3298]	158
[667]	159	USE advec_ws
[1320]	160
[1]	161	USE arrays_3d
[1849]	162
[4648]	163	USE basic_constants_and_equations_mod, &
	164	ONLY: barometric_formula, c_p, exner_function, exner_function_invers, g, &
	165	ideal_gas_law_rho, ideal_gas_law_rho_pt, l_v, pi
[3274]	166
[4648]	167	USE bulk_cloud_model_mod, &
[3685]	168	ONLY: bulk_cloud_model
[3274]	169
[4648]	170	USE chem_modules, &
[3685]	171	ONLY: max_pr_cs ! ToDo: this dependency needs to be removed cause it is ugly #new_dom
[3298]	172
[1]	173	USE control_parameters
[3298]	174
[4877]	175	USE exchange_horiz_mod, &
	176	ONLY: exchange_horiz_2d
	177
[4648]	178	USE grid_variables, &
[2037]	179	ONLY: dx, dy, ddx2_mg, ddy2_mg
[2817]	180
[1]	181	USE indices
[3469]	182
[1320]	183	USE kinds
[4648]	184
	185	USE lsf_nudging_mod, &
[3685]	186	ONLY: ls_forcing_surf
[1849]	187
[4648]	188	USE model_1d_mod, &
[3241]	189	ONLY: init_1d_model, l1d, u1d, v1d
[2338]	190
[4648]	191	USE module_interface, &
	192	ONLY: module_interface_init_arrays, &
	193	module_interface_init, &
[3711]	194	module_interface_init_checks
[3685]	195
[4648]	196	USE multi_agent_system_mod, &
[3159]	197	ONLY: agents_active, mas_init
	198
[4648]	199	USE netcdf_interface, &
[3700]	200	ONLY: dots_max
[2696]	201
[4648]	202	USE netcdf_data_input_mod, &
[4878]	203	ONLY: add_ghost_layers, &
	204	char_fill, &
[4648]	205	check_existence, &
	206	close_input_file, &
	207	get_attribute, &
	208	get_variable, &
	209	init_3d, &
	210	input_pids_static, &
	211	inquire_num_variables, &
	212	inquire_variable_names, &
	213	input_file_static, &
	214	netcdf_data_input_init_3d, &
	215	num_var_pids, &
	216	open_read_file, &
	217	pids_id, &
	218	real_2d, &
[4186]	219	vars_pids
[4648]	220
	221	USE nesting_offl_mod, &
[3347]	222	ONLY: nesting_offl_init
[3294]	223
[4648]	224	USE palm_date_time_mod, &
[4680]	225	ONLY: init_date_time
[4227]	226
[1]	227	USE pegrid
[3298]	228
[3524]	229	#if defined( __parallel )
[4648]	230	USE pmc_interface, &
[2934]	231	ONLY: nested_run
[3524]	232	#endif
[2934]	233
[4648]	234	USE random_function_mod
[3685]	235
[4648]	236	USE random_generator_parallel, &
[2172]	237	ONLY: init_parallel_random_generator
[3685]	238
[4648]	239	USE read_restart_data_mod, &
	240	ONLY: rrd_local, rrd_read_parts_of_global
[3685]	241
[4648]	242	USE statistics, &
	243	ONLY: hom, hom_sum, mean_surface_level_height, pr_palm, rmask, statistic_regions, sums, &
	244	sums_divnew_l, sums_divold_l, sums_l, sums_l_l, sums_wsts_bc_l, ts_value, &
[1833]	245	weight_pres, weight_substep
[2259]	246
[4648]	247	USE synthetic_turbulence_generator_mod, &
[4848]	248	ONLY: stg_init
[3685]	249
[4648]	250	USE surface_layer_fluxes_mod, &
[1691]	251	ONLY: init_surface_layer_fluxes
[2232]	252
[4648]	253	USE surface_mod, &
	254	ONLY : init_single_surface_properties, &
	255	init_surface_arrays, &
	256	init_surfaces, &
	257	surf_def_h, &
	258	surf_def_v, &
	259	surf_lsm_h, &
[4168]	260	surf_usm_h
[3685]	261
[3849]	262	#if defined( _OPENACC )
[4648]	263	USE surface_mod, &
[3849]	264	ONLY : bc_h
	265	#endif
	266
[4648]	267	USE surface_data_output_mod, &
[3648]	268	ONLY: surface_data_output_init
[3685]	269
[2007]	270	USE transpose_indices
[1]	271
[4648]	272
[1]	273	IMPLICIT NONE
[4648]	274
[4150]	275	INTEGER(iwp) :: i !< grid index in x direction
	276	INTEGER(iwp) :: ind_array(1) !< dummy used to determine start index for external pressure forcing
	277	INTEGER(iwp) :: j !< grid index in y direction
	278	INTEGER(iwp) :: k !< grid index in z direction
	279	INTEGER(iwp) :: k_surf !< surface level index
[4648]	280	INTEGER(iwp) :: l !< running index over surface orientation
	281	INTEGER(iwp) :: m !< index of surface element in surface data type
[4150]	282	INTEGER(iwp) :: nz_u_shift !< topography-top index on u-grid, used to vertically shift initial profiles
	283	INTEGER(iwp) :: nz_v_shift !< topography-top index on v-grid, used to vertically shift initial profiles
	284	INTEGER(iwp) :: nz_w_shift !< topography-top index on w-grid, used to vertically shift initial profiles
	285	INTEGER(iwp) :: nz_s_shift !< topography-top index on scalar-grid, used to vertically shift initial profiles
	286	INTEGER(iwp) :: nz_u_shift_l !< topography-top index on u-grid, used to vertically shift initial profiles
	287	INTEGER(iwp) :: nz_v_shift_l !< topography-top index on v-grid, used to vertically shift initial profiles
	288	INTEGER(iwp) :: nz_w_shift_l !< topography-top index on w-grid, used to vertically shift initial profiles
	289	INTEGER(iwp) :: nz_s_shift_l !< topography-top index on scalar-grid, used to vertically shift initial profiles
	290	INTEGER(iwp) :: nzt_l !< index of top PE boundary for multigrid level
	291	INTEGER(iwp) :: sr !< index of statistic region
[1]	292
[4648]	293	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !< toal number of horizontal grid points in statistical region on
	294	!< subdomain
[1]	295
[4648]	296	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !< number of horizontal non-wall bounded grid points on
	297	!< subdomain
	298	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !< number of horizontal non-topography grid points on
	299	!< subdomain
[1]	300
[2037]	301	REAL(wp) :: dx_l !< grid spacing along x on different multigrid level
	302	REAL(wp) :: dy_l !< grid spacing along y on different multigrid level
	303
[4648]	304	REAL(wp), DIMENSION(:), ALLOCATABLE :: init_l !< dummy array used for averaging 3D data to obtain
	305	!< inital profiles
	306	REAL(wp), DIMENSION(:), ALLOCATABLE :: mean_surface_level_height_l !< mean surface level height on subdomain
	307	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !< total number of non-topography grid points on subdomain
	308	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !< total number of non-topography grid points
	309	REAL(wp), DIMENSION(:), ALLOCATABLE :: p_hydrostatic !< hydrostatic pressure
	310
[3547]	311	REAL(wp), DIMENSION(1:3) :: volume_flow_area_l !< area of lateral and top model domain surface on local subdomain
	312	REAL(wp), DIMENSION(1:3) :: volume_flow_initial_l !< initial volume flow into model domain
[1]	313
[4648]	314	TYPE(real_2d) :: tmp_2d !< temporary variable to input additional surface-data from static file
[1]	315
[3987]	316	CALL location_message( 'model initialization', 'start' )
[4227]	317	!
	318	!-- Set reference date-time
[4680]	319	CALL init_date_time( date_time_str=origin_date_time, &
	320	use_fixed_date=use_fixed_date, &
	321	use_fixed_time=use_fixed_time )
[3987]	322
	323	IF ( debug_output ) CALL debug_message( 'allocating arrays', 'start' )
[1]	324	!
	325	!-- Allocate arrays
[4648]	326	ALLOCATE( mean_surface_level_height(0:statistic_regions), &
	327	mean_surface_level_height_l(0:statistic_regions), &
	328	ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
	329	ngp_3d(0:statistic_regions), &
	330	ngp_3d_inner(0:statistic_regions), &
	331	ngp_3d_inner_l(0:statistic_regions), &
	332	ngp_3d_inner_tmp(0:statistic_regions), &
	333	sums_divnew_l(0:statistic_regions), &
[1]	334	sums_divold_l(0:statistic_regions) )
[1195]	335	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
[4648]	336	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
	337	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
	338	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
	339	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
	340	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
	341	sums(nzb:nzt+1,pr_palm+max_pr_user+max_pr_cs+max_pr_salsa), &
[4131]	342	sums_l(nzb:nzt+1,pr_palm+max_pr_user+max_pr_cs+max_pr_salsa,0:threads_per_task-1), &
[4648]	343	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
[3700]	344	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions) )
	345	ALLOCATE( ts_value(dots_max,0:statistic_regions) )
[978]	346	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
[1]	347
[4648]	348	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
	349	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1010]	350	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	351
[4648]	352	ALLOCATE( pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	353	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	354	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	355	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	356	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	357	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	358	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	359	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	360	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	361	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	362	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1788]	363	IF ( .NOT. neutral ) THEN
[1032]	364	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	365	ENDIF
[673]	366	!
[3747]	367	!-- Pre-set masks for regional statistics. Default is the total model domain.
[4648]	368	!-- Ghost points are excluded because counting values at the ghost boundaries would bias the
	369	!-- statistics.
[3747]	370	rmask = 1.0_wp
	371	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
	372	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
	373	!
[4648]	374	!-- Following array is required for perturbation pressure within the iterative pressure solvers. For
	375	!-- the multistep schemes (Runge-Kutta), array p holds the weighted average of the substeps and
	376	!-- cannot be used in the Poisson solver.
[707]	377	IF ( psolver == 'sor' ) THEN
	378	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1575]	379	ELSEIF ( psolver(1:9) == 'multigrid' ) THEN
[707]	380	!
	381	!-- For performance reasons, multigrid is using one ghost layer only
	382	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[673]	383	ENDIF
[1]	384
[1111]	385	!
	386	!-- Array for storing constant coeffficients of the tridiagonal solver
	387	IF ( psolver == 'poisfft' ) THEN
[1212]	388	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
[1111]	389	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
	390	ENDIF
	391
[1960]	392	IF ( humidity ) THEN
[1]	393	!
[1960]	394	!-- 3D-humidity
[4648]	395	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	396	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	397	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	398	vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	399	ENDIF
	400
[1960]	401	IF ( passive_scalar ) THEN
[1]	402
[1960]	403	!
	404	!-- 3D scalar arrays
[4648]	405	ALLOCATE( s_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	406	s_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1960]	407	s_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[3636]	408
[1960]	409	ENDIF
	410
[1]	411	!
[4648]	412	!-- Allocate and set 1d-profiles for Stokes drift velocity. It may be set to non-zero values later
	413	!-- in ocean_init.
	414	ALLOCATE( u_stokes_zu(nzb:nzt+1), u_stokes_zw(nzb:nzt+1), &
[3302]	415	v_stokes_zu(nzb:nzt+1), v_stokes_zw(nzb:nzt+1) )
	416	u_stokes_zu(:) = 0.0_wp
	417	u_stokes_zw(:) = 0.0_wp
	418	v_stokes_zu(:) = 0.0_wp
	419	v_stokes_zw(:) = 0.0_wp
	420
	421	!
[2037]	422	!-- Allocation of anelastic and Boussinesq approximation specific arrays
	423	ALLOCATE( p_hydrostatic(nzb:nzt+1) )
	424	ALLOCATE( rho_air(nzb:nzt+1) )
	425	ALLOCATE( rho_air_zw(nzb:nzt+1) )
	426	ALLOCATE( drho_air(nzb:nzt+1) )
	427	ALLOCATE( drho_air_zw(nzb:nzt+1) )
	428	!
[4648]	429	!-- Density profile calculation for anelastic and Boussinesq approximation.
	430	!-- In case of a Boussinesq approximation, a constant density is calculated mainly for output
	431	!-- purposes. This density does not need to be considered in the model's system of equations.
[4088]	432	IF ( TRIM( approximation ) == 'anelastic' ) THEN
[2037]	433	DO k = nzb, nzt+1
[4648]	434	p_hydrostatic(k) = barometric_formula(zu(k), pt_surface * &
	435	exner_function(surface_pressure * 100.0_wp), &
	436	surface_pressure * 100.0_wp)
	437
[4088]	438	rho_air(k) = ideal_gas_law_rho_pt(p_hydrostatic(k), pt_init(k))
[2037]	439	ENDDO
[4648]	440
[2037]	441	DO k = nzb, nzt
	442	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
	443	ENDDO
[4648]	444
	445	rho_air_zw(nzt+1) = rho_air_zw(nzt) + 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
	446
[2037]	447	ELSE
[2252]	448	DO k = nzb, nzt+1
[4648]	449	p_hydrostatic(k) = barometric_formula(zu(nzb), pt_surface * &
	450	exner_function(surface_pressure * 100.0_wp), &
	451	surface_pressure * 100.0_wp)
[4088]	452
	453	rho_air(k) = ideal_gas_law_rho_pt(p_hydrostatic(k), pt_init(nzb))
[2252]	454	ENDDO
[4648]	455
[2252]	456	DO k = nzb, nzt
	457	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
	458	ENDDO
[4648]	459
	460	rho_air_zw(nzt+1) = rho_air_zw(nzt) + 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
	461
[2037]	462	ENDIF
[2696]	463	!
[4648]	464	!-- Compute the inverse density array in order to avoid expencive divisions
[2037]	465	drho_air = 1.0_wp / rho_air
	466	drho_air_zw = 1.0_wp / rho_air_zw
	467
	468	!
	469	!-- Allocation of flux conversion arrays
	470	ALLOCATE( heatflux_input_conversion(nzb:nzt+1) )
	471	ALLOCATE( waterflux_input_conversion(nzb:nzt+1) )
	472	ALLOCATE( momentumflux_input_conversion(nzb:nzt+1) )
	473	ALLOCATE( heatflux_output_conversion(nzb:nzt+1) )
	474	ALLOCATE( waterflux_output_conversion(nzb:nzt+1) )
	475	ALLOCATE( momentumflux_output_conversion(nzb:nzt+1) )
	476
	477	!
[4648]	478	!-- Calculate flux conversion factors according to approximation and in-/output mode
[2037]	479	DO k = nzb, nzt+1
	480
	481	IF ( TRIM( flux_input_mode ) == 'kinematic' ) THEN
	482	heatflux_input_conversion(k) = rho_air_zw(k)
	483	waterflux_input_conversion(k) = rho_air_zw(k)
	484	momentumflux_input_conversion(k) = rho_air_zw(k)
	485	ELSEIF ( TRIM( flux_input_mode ) == 'dynamic' ) THEN
[3274]	486	heatflux_input_conversion(k) = 1.0_wp / c_p
[2037]	487	waterflux_input_conversion(k) = 1.0_wp / l_v
	488	momentumflux_input_conversion(k) = 1.0_wp
	489	ENDIF
	490
	491	IF ( TRIM( flux_output_mode ) == 'kinematic' ) THEN
	492	heatflux_output_conversion(k) = drho_air_zw(k)
	493	waterflux_output_conversion(k) = drho_air_zw(k)
	494	momentumflux_output_conversion(k) = drho_air_zw(k)
	495	ELSEIF ( TRIM( flux_output_mode ) == 'dynamic' ) THEN
[3274]	496	heatflux_output_conversion(k) = c_p
[2037]	497	waterflux_output_conversion(k) = l_v
	498	momentumflux_output_conversion(k) = 1.0_wp
	499	ENDIF
	500
	501	IF ( .NOT. humidity ) THEN
	502	waterflux_input_conversion(k) = 1.0_wp
	503	waterflux_output_conversion(k) = 1.0_wp
	504	ENDIF
	505
	506	ENDDO
	507
	508	!
[4648]	509	!-- In case of multigrid method, compute grid lengths and grid factors for the grid levels with
	510	!-- respective density on each grid.
[2037]	511	IF ( psolver(1:9) == 'multigrid' ) THEN
	512
	513	ALLOCATE( ddx2_mg(maximum_grid_level) )
	514	ALLOCATE( ddy2_mg(maximum_grid_level) )
	515	ALLOCATE( dzu_mg(nzb+1:nzt+1,maximum_grid_level) )
	516	ALLOCATE( dzw_mg(nzb+1:nzt+1,maximum_grid_level) )
	517	ALLOCATE( f1_mg(nzb+1:nzt,maximum_grid_level) )
	518	ALLOCATE( f2_mg(nzb+1:nzt,maximum_grid_level) )
	519	ALLOCATE( f3_mg(nzb+1:nzt,maximum_grid_level) )
	520	ALLOCATE( rho_air_mg(nzb:nzt+1,maximum_grid_level) )
	521	ALLOCATE( rho_air_zw_mg(nzb:nzt+1,maximum_grid_level) )
	522
	523	dzu_mg(:,maximum_grid_level) = dzu
	524	rho_air_mg(:,maximum_grid_level) = rho_air
[4648]	525	!
	526	!-- Next line to ensure an equally spaced grid.
[2037]	527	dzu_mg(1,maximum_grid_level) = dzu(2)
[4648]	528	rho_air_mg(nzb,maximum_grid_level) = rho_air(nzb) + (rho_air(nzb) - rho_air(nzb+1))
[2037]	529
	530	dzw_mg(:,maximum_grid_level) = dzw
	531	rho_air_zw_mg(:,maximum_grid_level) = rho_air_zw
	532	nzt_l = nzt
	533	DO l = maximum_grid_level-1, 1, -1
	534	dzu_mg(nzb+1,l) = 2.0_wp * dzu_mg(nzb+1,l+1)
	535	dzw_mg(nzb+1,l) = 2.0_wp * dzw_mg(nzb+1,l+1)
[4648]	536	rho_air_mg(nzb,l) = rho_air_mg(nzb,l+1) + ( rho_air_mg(nzb,l+1) - &
	537	rho_air_mg(nzb+1,l+1) )
	538	rho_air_zw_mg(nzb,l) = rho_air_zw_mg(nzb,l+1) + ( rho_air_zw_mg(nzb,l+1) - &
	539	rho_air_zw_mg(nzb+1,l+1) )
[2037]	540	rho_air_mg(nzb+1,l) = rho_air_mg(nzb+1,l+1)
	541	rho_air_zw_mg(nzb+1,l) = rho_air_zw_mg(nzb+1,l+1)
	542	nzt_l = nzt_l / 2
	543	DO k = 2, nzt_l+1
	544	dzu_mg(k,l) = dzu_mg(2k-2,l+1) + dzu_mg(2k-1,l+1)
	545	dzw_mg(k,l) = dzw_mg(2k-2,l+1) + dzw_mg(2k-1,l+1)
	546	rho_air_mg(k,l) = rho_air_mg(2*k-1,l+1)
	547	rho_air_zw_mg(k,l) = rho_air_zw_mg(2*k-1,l+1)
	548	ENDDO
	549	ENDDO
	550
	551	nzt_l = nzt
	552	dx_l = dx
	553	dy_l = dy
	554	DO l = maximum_grid_level, 1, -1
	555	ddx2_mg(l) = 1.0_wp / dx_l**2
	556	ddy2_mg(l) = 1.0_wp / dy_l**2
	557	DO k = nzb+1, nzt_l
	558	f2_mg(k,l) = rho_air_zw_mg(k,l) / ( dzu_mg(k+1,l) * dzw_mg(k,l) )
	559	f3_mg(k,l) = rho_air_zw_mg(k-1,l) / ( dzu_mg(k,l) * dzw_mg(k,l) )
[4648]	560	f1_mg(k,l) = 2.0_wp * ( ddx2_mg(l) + ddy2_mg(l) ) &
[2037]	561	* rho_air_mg(k,l) + f2_mg(k,l) + f3_mg(k,l)
	562	ENDDO
	563	nzt_l = nzt_l / 2
	564	dx_l = dx_l * 2.0_wp
	565	dy_l = dy_l * 2.0_wp
	566	ENDDO
	567
	568	ENDIF
	569
	570	!
[1299]	571	!-- 1D-array for large scale subsidence velocity
[1361]	572	IF ( .NOT. ALLOCATED( w_subs ) ) THEN
	573	ALLOCATE ( w_subs(nzb:nzt+1) )
	574	w_subs = 0.0_wp
	575	ENDIF
[1299]	576
	577	!
[1]	578	!-- Initial assignment of the pointers
[1032]	579	IF ( .NOT. neutral ) THEN
	580	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
	581	ELSE
	582	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
	583	ENDIF
[1001]	584	u => u_1; u_p => u_2; tu_m => u_3
	585	v => v_1; v_p => v_2; tv_m => v_3
	586	w => w_1; w_p => w_2; tw_m => w_3
[1]	587
[1960]	588	IF ( humidity ) THEN
[1001]	589	q => q_1; q_p => q_2; tq_m => q_3
[3274]	590	vpt => vpt_1
[1001]	591	ENDIF
[4648]	592
[1960]	593	IF ( passive_scalar ) THEN
	594	s => s_1; s_p => s_2; ts_m => s_3
[4648]	595	ENDIF
[1]	596
	597	!
[2696]	598	!-- Initialize surface arrays
[2232]	599	CALL init_surface_arrays
	600	!
[3294]	601	!-- Allocate arrays for other modules
[3685]	602	CALL module_interface_init_arrays
[1551]	603
[1914]	604
[2320]	605	!
[4648]	606	!-- Allocate arrays containing the RK coefficient for calculation of perturbation pressure and
	607	!-- turbulent fluxes. At this point values are set for pressure calculation during initialization
	608	!-- (where no timestep is done). Further below the values needed within the timestep scheme will be
	609	!-- set.
	610	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
[1878]	611	weight_pres(1:intermediate_timestep_count_max) )
[1340]	612	weight_substep = 1.0_wp
	613	weight_pres = 1.0_wp
[1918]	614	intermediate_timestep_count = 0 ! needed when simulated_time = 0.0
[4648]	615
[3987]	616	IF ( debug_output ) CALL debug_message( 'allocating arrays', 'end' )
[1918]	617
[673]	618	!
[3014]	619	!-- Initialize time series
	620	ts_value = 0.0_wp
	621
	622	!
[1918]	623	!-- Initialize local summation arrays for routine flow_statistics.
[4648]	624	!-- This is necessary because they may not yet have been initialized when they are called from
	625	!-- flow_statistics (or - depending on the chosen model run - are never initialized)
	626	sums_divnew_l = 0.0_wp
	627	sums_divold_l = 0.0_wp
	628	sums_l_l = 0.0_wp
	629	sums_wsts_bc_l = 0.0_wp
	630
[1918]	631	!
[1]	632	!-- Initialize model variables
[4648]	633	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[328]	634	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[1]	635	!
[2696]	636	!-- Initialization with provided input data derived from larger-scale model
	637	IF ( INDEX( initializing_actions, 'inifor' ) /= 0 ) THEN
[3987]	638	IF ( debug_output ) CALL debug_message( 'initializing with INIFOR', 'start' )
[2696]	639	!
[4648]	640	!-- Read initial 1D profiles or 3D data from NetCDF file, depending on the provided
	641	!-- level-of-detail.
	642	!-- At the moment, only u, v, w, pt and q are provided.
[2696]	643	CALL netcdf_data_input_init_3d
	644	!
[4648]	645	!-- Please note, Inifor provides data from nzb+1 to nzt.
	646	!-- Bottom and top boundary conditions for Inifor profiles are already set (just after
	647	!-- reading), so that this is not necessary here.
	648	!-- Depending on the provided level-of-detail, initial Inifor data is either stored on data
	649	!-- type (lod=1), or directly on 3D arrays (lod=2).
	650	!-- In order to obtain also initial profiles in case of lod=2 (which is required for e.g.
	651	!-- damping), average over 3D data.
[3182]	652	IF( init_3d%lod_u == 1 ) THEN
	653	u_init = init_3d%u_init
[4648]	654	ELSEIF( init_3d%lod_u == 2 ) THEN
	655	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	656	DO k = nzb, nzt+1
	657	init_l(k) = SUM( u(k,nys:nyn,nxl:nxr) )
	658	ENDDO
	659	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
[1384]	660
[3182]	661	#if defined( __parallel )
[4648]	662	CALL MPI_ALLREDUCE( init_l, u_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	663	#else
	664	u_init = init_l
	665	#endif
	666	DEALLOCATE( init_l )
[3051]	667
[2696]	668	ENDIF
[4648]	669
	670	IF( init_3d%lod_v == 1 ) THEN
[3182]	671	v_init = init_3d%v_init
[4648]	672	ELSEIF( init_3d%lod_v == 2 ) THEN
	673	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	674	DO k = nzb, nzt+1
	675	init_l(k) = SUM( v(k,nys:nyn,nxl:nxr) )
	676	ENDDO
	677	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
[2696]	678
[3182]	679	#if defined( __parallel )
[4648]	680	CALL MPI_ALLREDUCE( init_l, v_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	681	#else
	682	v_init = init_l
	683	#endif
	684	DEALLOCATE( init_l )
	685	ENDIF
	686	IF( .NOT. neutral ) THEN
	687	IF( init_3d%lod_pt == 1 ) THEN
	688	pt_init = init_3d%pt_init
[4648]	689	ELSEIF( init_3d%lod_pt == 2 ) THEN
	690	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	691	DO k = nzb, nzt+1
	692	init_l(k) = SUM( pt(k,nys:nyn,nxl:nxr) )
	693	ENDDO
	694	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
	695
	696	#if defined( __parallel )
[4648]	697	CALL MPI_ALLREDUCE( init_l, pt_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	698	#else
	699	pt_init = init_l
	700	#endif
	701	DEALLOCATE( init_l )
	702	ENDIF
	703	ENDIF
	704
	705
	706	IF( humidity ) THEN
	707	IF( init_3d%lod_q == 1 ) THEN
	708	q_init = init_3d%q_init
[4648]	709	ELSEIF( init_3d%lod_q == 2 ) THEN
	710	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	711	DO k = nzb, nzt+1
	712	init_l(k) = SUM( q(k,nys:nyn,nxl:nxr) )
	713	ENDDO
	714	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
	715
	716	#if defined( __parallel )
[4648]	717	CALL MPI_ALLREDUCE( init_l, q_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	718	#else
	719	q_init = init_l
	720	#endif
	721	DEALLOCATE( init_l )
	722	ENDIF
	723	ENDIF
	724
[2696]	725	!
[4648]	726	!-- Write initial profiles onto 3D arrays.
	727	!-- Work-around, 3D initialization of u,v,w creates artificial structures which correlate with
	728	!-- the processor grid. The reason for this is still unknown. To work-around this, 3D
	729	!-- initialization will be effectively reduce to a 1D initialization where no such artificial
	730	!-- structures appear.
[2696]	731	DO i = nxlg, nxrg
	732	DO j = nysg, nyng
[4648]	733	IF( init_3d%lod_u == 1 .OR. init_3d%lod_u == 2 ) u(:,j,i) = u_init(:)
	734	IF( init_3d%lod_v == 1 .OR. init_3d%lod_u == 2 ) v(:,j,i) = v_init(:)
	735	IF( .NOT. neutral .AND. ( init_3d%lod_pt == 1 .OR. init_3d%lod_pt == 2 ) ) &
[3051]	736	pt(:,j,i) = pt_init(:)
[4648]	737	IF( humidity .AND. ( init_3d%lod_q == 1 .OR. init_3d%lod_q == 2 ) ) &
[4130]	738	q(:,j,i) = q_init(:)
[2696]	739	ENDDO
	740	ENDDO
	741	!
[4648]	742	!-- Set geostrophic wind components.
[2938]	743	IF ( init_3d%from_file_ug ) THEN
	744	ug(:) = init_3d%ug_init(:)
	745	ENDIF
	746	IF ( init_3d%from_file_vg ) THEN
	747	vg(:) = init_3d%vg_init(:)
	748	ENDIF
[3404]	749	!
	750	!-- Set bottom and top boundary condition for geostrophic wind
[2938]	751	ug(nzt+1) = ug(nzt)
	752	vg(nzt+1) = vg(nzt)
[3404]	753	ug(nzb) = ug(nzb+1)
	754	vg(nzb) = vg(nzb+1)
[2696]	755	!
	756	!-- Set inital w to 0
	757	w = 0.0_wp
	758
	759	IF ( passive_scalar ) THEN
	760	DO i = nxlg, nxrg
	761	DO j = nysg, nyng
	762	s(:,j,i) = s_init
	763	ENDDO
	764	ENDDO
	765	ENDIF
	766
	767	!
[4648]	768	!-- Set velocity components at non-atmospheric / oceanic grid points to zero.
[4346]	769	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
	770	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
	771	w = MERGE( w, 0.0_wp, BTEST( wall_flags_total_0, 3 ) )
[2700]	772	!
[4648]	773	!-- Initialize surface variables, e.g. friction velocity, momentum fluxes, etc.
	774	CALL init_surfaces
[2696]	775
[4648]	776	IF ( debug_output ) CALL debug_message( 'initializing with INIFOR', 'end' )
[2696]	777	!
	778	!-- Initialization via computed 1D-model profiles
	779	ELSEIF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
	780
[4648]	781	IF ( debug_output ) CALL debug_message( 'initializing with 1D model profiles', 'start' )
[1]	782	!
	783	!-- Use solutions of the 1D model as initial profiles,
	784	!-- start 1D model
	785	CALL init_1d_model
	786	!
	787	!-- Transfer initial profiles to the arrays of the 3D model
[667]	788	DO i = nxlg, nxrg
	789	DO j = nysg, nyng
[1]	790	pt(:,j,i) = pt_init
	791	u(:,j,i) = u1d
	792	v(:,j,i) = v1d
	793	ENDDO
	794	ENDDO
	795
[1960]	796	IF ( humidity ) THEN
[667]	797	DO i = nxlg, nxrg
	798	DO j = nysg, nyng
[1]	799	q(:,j,i) = q_init
	800	ENDDO
	801	ENDDO
	802	ENDIF
[2292]	803
[1960]	804	IF ( passive_scalar ) THEN
	805	DO i = nxlg, nxrg
	806	DO j = nysg, nyng
	807	s(:,j,i) = s_init
	808	ENDDO
[4648]	809	ENDDO
[1960]	810	ENDIF
[1]	811	!
	812	!-- Store initial profiles for output purposes etc.
[2696]	813	IF ( .NOT. constant_diffusion ) THEN
[1]	814	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	815	ENDIF
	816	!
[2696]	817	!-- Set velocities back to zero
[4346]	818	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
[4648]	819	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
[1]	820	!
[4648]	821	!-- WARNING: The extra boundary conditions set after running the 1D model impose an error on
	822	!-- -------- the divergence one layer below the topography; need to correct later
	823	!-- ATTENTION: Provisional correction for Piacsek & Williams advection scheme: keep u and v
	824	!-- ---------- zero one layer below the topography.
[2696]	825	IF ( ibc_uv_b == 1 ) THEN
[667]	826	!
[2696]	827	!-- Neumann condition
	828	DO i = nxl-1, nxr+1
	829	DO j = nys-1, nyn+1
	830	u(nzb,j,i) = u(nzb+1,j,i)
	831	v(nzb,j,i) = v(nzb+1,j,i)
[1]	832	ENDDO
[2696]	833	ENDDO
[1]	834
	835	ENDIF
[2618]	836	!
[4648]	837	!-- Initialize surface variables, e.g. friction velocity, momentum fluxes, etc.
[2618]	838	CALL init_surfaces
[1]	839
[4648]	840	IF ( debug_output ) CALL debug_message( 'initializing with 1D model profiles', 'end' )
[1384]	841
[4648]	842	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) THEN
[1241]	843
[4648]	844	IF ( debug_output ) CALL debug_message( 'initializing with constant profiles', 'start' )
[2259]	845
	846	!
[4648]	847	!-- Use constructed initial profiles (velocity constant with height, temperature profile with
	848	!-- constant gradient)
[667]	849	DO i = nxlg, nxrg
	850	DO j = nysg, nyng
[1]	851	pt(:,j,i) = pt_init
	852	u(:,j,i) = u_init
	853	v(:,j,i) = v_init
	854	ENDDO
	855	ENDDO
	856	!
[2758]	857	!-- Mask topography
[4346]	858	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
	859	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
[2758]	860	!
[4648]	861	!-- Set initial horizontal velocities at the lowest computational grid levels to zero in order
	862	!-- to avoid too small time steps caused by the diffusion limit in the initial phase of a run
	863	!-- (at k=1, dz/2 occurs in the limiting formula!).
	864	!-- Please note, in case land- or urban-surface model is used and a spinup is applied, masking
	865	!-- the lowest computational level is not possible as MOST as well as energy-balance
	866	!-- parametrizations will not work with zero wind velocity.
	867	IF ( ibc_uv_b /= 1 .AND. .NOT. spinup ) THEN
[1815]	868	DO i = nxlg, nxrg
	869	DO j = nysg, nyng
[2232]	870	DO k = nzb, nzt
[4648]	871	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 20 ) )
	872	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 21 ) )
[2232]	873	ENDDO
[1815]	874	ENDDO
	875	ENDDO
	876	ENDIF
[1]	877
[1960]	878	IF ( humidity ) THEN
[667]	879	DO i = nxlg, nxrg
	880	DO j = nysg, nyng
[1]	881	q(:,j,i) = q_init
	882	ENDDO
	883	ENDDO
	884	ENDIF
[4648]	885
[1960]	886	IF ( passive_scalar ) THEN
	887	DO i = nxlg, nxrg
	888	DO j = nysg, nyng
	889	s(:,j,i) = s_init
	890	ENDDO
	891	ENDDO
	892	ENDIF
[1]	893
[1920]	894	!
[4648]	895	!-- Compute initial temperature field and other constants used in case of a sloping surface.
[1]	896	IF ( sloping_surface ) CALL init_slope
[2618]	897	!
[4648]	898	!-- Initialize surface variables, e.g. friction velocity, momentum fluxes, etc.
[2618]	899	CALL init_surfaces
[4648]	900
[3987]	901	IF ( debug_output ) CALL debug_message( 'initializing with constant profiles', 'end' )
[1384]	902
[4648]	903	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) THEN
[1384]	904
[3987]	905	IF ( debug_output ) CALL debug_message( 'initializing by user', 'start' )
[46]	906	!
[4648]	907	!-- Pre-initialize surface variables, i.e. setting start- and end-indices at each
	908	!-- (j,i)-location. Please note, this does not supersede user-defined initialization of
	909	!-- surface quantities.
[2618]	910	CALL init_surfaces
	911	!
[46]	912	!-- Initialization will completely be done by the user
	913	CALL user_init_3d_model
	914
[3987]	915	IF ( debug_output ) CALL debug_message( 'initializing by user', 'end' )
[1384]	916
[1]	917	ENDIF
[1384]	918
[4648]	919	IF ( debug_output ) THEN
	920	CALL debug_message( 'initializing statistics, boundary conditions, etc.', 'start' )
	921	ENDIF
[1384]	922
[667]	923	!
	924	!-- Bottom boundary
[4648]	925	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
[1340]	926	u(nzb,:,:) = 0.0_wp
	927	v(nzb,:,:) = 0.0_wp
[667]	928	ENDIF
[1]	929
	930	!
[151]	931	!-- Apply channel flow boundary condition
[132]	932	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
[1340]	933	u(nzt+1,:,:) = 0.0_wp
	934	v(nzt+1,:,:) = 0.0_wp
[132]	935	ENDIF
	936
	937	!
[1]	938	!-- Calculate virtual potential temperature
[1960]	939	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
[1]	940
	941	!
[4648]	942	!-- Store initial profiles for output purposes etc.. Please note, in case of initialization of u,
	943	!-- v, w, pt, and q via output data derived from larger scale models, data will not be
	944	!-- horizontally homogeneous. Actually, a mean profile should be calculated before.
[1]	945	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	946	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
[667]	947	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
[1340]	948	hom(nzb,1,5,:) = 0.0_wp
	949	hom(nzb,1,6,:) = 0.0_wp
[1]	950	ENDIF
	951	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	952
[75]	953	IF ( humidity ) THEN
[1]	954	!
[4648]	955	!-- Store initial profile of total water content, virtual potential temperature
[1]	956	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	957	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
[2696]	958	!
[4648]	959	!-- Store initial profile of mixing ratio and potential temperature
[3274]	960	IF ( bulk_cloud_model .OR. cloud_droplets ) THEN
[1]	961	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	962	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	963	ENDIF
	964	ENDIF
	965
[2696]	966	!
	967	!-- Store initial scalar profile
[1]	968	IF ( passive_scalar ) THEN
[2513]	969	hom(:,1,121,:) = SPREAD( s(:,nys,nxl), 2, statistic_regions+1 )
[1]	970	ENDIF
	971
	972	!
[1400]	973	!-- Initialize the random number generators (from numerical recipes)
	974	CALL random_function_ini
[4648]	975
[1400]	976	IF ( random_generator == 'random-parallel' ) THEN
[3241]	977	CALL init_parallel_random_generator( nx, nys, nyn, nxl, nxr )
[1400]	978	ENDIF
	979	!
[4648]	980	!-- Set the reference state to be used in the buoyancy terms (for ocean runs the reference state
	981	!-- will be set (overwritten) in init_ocean).
[1179]	982	IF ( use_single_reference_value ) THEN
[4648]	983	IF ( .NOT. humidity ) THEN
[1179]	984	ref_state(:) = pt_reference
	985	ELSE
	986	ref_state(:) = vpt_reference
	987	ENDIF
	988	ELSE
[4648]	989	IF ( .NOT. humidity ) THEN
[1179]	990	ref_state(:) = pt_init(:)
	991	ELSE
	992	ref_state(:) = vpt(:,nys,nxl)
	993	ENDIF
	994	ENDIF
[152]	995
	996	!
[707]	997	!-- For the moment, vertical velocity is zero
[1340]	998	w = 0.0_wp
[1]	999
	1000	!
	1001	!-- Initialize array sums (must be defined in first call of pres)
[1340]	1002	sums = 0.0_wp
[1]	1003
	1004	!
[707]	1005	!-- In case of iterative solvers, p must get an initial value
[1575]	1006	IF ( psolver(1:9) == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
[707]	1007	!
[1]	1008	!-- Impose vortex with vertical axis on the initial velocity profile
	1009	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	1010	CALL init_rankine
	1011	ENDIF
	1012
	1013	!
[4648]	1014	!-- Impose temperature anomaly (advection test only) or warm air bubble close to surface.
	1015	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 .OR. &
[3035]	1016	INDEX( initializing_actions, 'initialize_bubble' ) /= 0 ) THEN
[1]	1017	CALL init_pt_anomaly
	1018	ENDIF
[4648]	1019
[1]	1020	!
	1021	!-- If required, change the surface temperature at the start of the 3D run
[1340]	1022	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
[1]	1023	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	1024	ENDIF
	1025
	1026	!
	1027	!-- If required, change the surface humidity/scalar at the start of the 3D
	1028	!-- run
[4648]	1029	IF ( humidity .AND. q_surface_initial_change /= 0.0_wp ) &
[1]	1030	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
[4648]	1031
	1032	IF ( passive_scalar .AND. s_surface_initial_change /= 0.0_wp ) &
[1960]	1033	s(nzb,:,:) = s(nzb,:,:) + s_surface_initial_change
[1]	1034
[4648]	1035
[1]	1036	!
	1037	!-- Initialize old and new time levels.
[2696]	1038	tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
	1039	pt_p = pt; u_p = u; v_p = v; w_p = w
[1]	1040
[1960]	1041	IF ( humidity ) THEN
[1340]	1042	tq_m = 0.0_wp
[1]	1043	q_p = q
	1044	ENDIF
[4648]	1045
[1960]	1046	IF ( passive_scalar ) THEN
	1047	ts_m = 0.0_wp
	1048	s_p = s
[4648]	1049	ENDIF
[1]	1050
[4648]	1051	IF ( debug_output ) THEN
	1052	CALL debug_message( 'initializing statistics, boundary conditions, etc.', 'end' )
	1053	ENDIF
[94]	1054
[1788]	1055	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
[2232]	1056	TRIM( initializing_actions ) == 'cyclic_fill' ) &
[1]	1057	THEN
[1384]	1058
[4648]	1059	IF ( debug_output ) THEN
	1060	CALL debug_message( 'initializing in case of restart / cyclic_fill', 'start' )
	1061	ENDIF
[1]	1062	!
[4648]	1063	!-- Initialize surface elements and its attributes, e.g. heat- and momentumfluxes, roughness,
	1064	!-- scaling parameters. As number of surface elements might be different between runs, e.g. in
	1065	!-- case of cyclic fill, and not all surface elements are read, surface elements need to be
	1066	!-- initialized before.
	1067	!-- Please note, in case of cyclic fill, surfaces should be initialized after restart data is
	1068	!-- read, else, individual settings of surface parameters will be overwritten from data of
	1069	!-- precursor run, hence, init_surfaces is called a second time after reading the restart data.
	1070	CALL init_surfaces
[3609]	1071	!
[4648]	1072	!-- When reading data for cyclic fill of 3D prerun data files, read some of the global variables
	1073	!-- from the restart file which are required for initializing the inflow
[328]	1074	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[559]	1075
[4783]	1076	!
	1077	!-- Blockwise I/O does not work together with MPI-I/O
	1078	IF ( restart_data_format_input(1:3) == 'mpi' ) THEN
	1079	CALL rrd_read_parts_of_global
	1080	ELSE
	1081	DO i = 0, io_blocks-1
	1082	IF ( i == io_group ) THEN
	1083	CALL rrd_read_parts_of_global
	1084	ENDIF
	1085	#if defined( __parallel )
	1086	CALL MPI_BARRIER( comm2d, ierr )
	1087	#endif
	1088	ENDDO
	1089	ENDIF
	1090
	1091	ENDIF
	1092
	1093	!
	1094	!-- Read processor specific binary data from restart file.
	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_local
	1098	ELSE
[759]	1099	DO i = 0, io_blocks-1
	1100	IF ( i == io_group ) THEN
[4783]	1101	CALL rrd_local
[759]	1102	ENDIF
	1103	#if defined( __parallel )
	1104	CALL MPI_BARRIER( comm2d, ierr )
	1105	#endif
	1106	ENDDO
[767]	1107	ENDIF
	1108
[4648]	1109
[4365]	1110	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1111
[3608]	1112	!
[4648]	1113	!-- In case of cyclic fill, call init_surfaces a second time, so that surface properties such
	1114	!-- as heat fluxes are initialized as prescribed.
[3609]	1115	CALL init_surfaces
[767]	1116
[328]	1117	!
[4648]	1118	!-- Overwrite u_init, v_init, pt_init, q_init and s_init with the horizontally mean (hom)
	1119	!-- vertical profiles from the end of the prerun, because these profiles shall be used as the
	1120	!-- reference state for the rayleigh damping and the pt_damping. This is especially important
	1121	!-- for the use of large_scale_subsidence, because the reference temperature in the free
	1122	!-- atmosphere changes in time.
[4365]	1123	u_init(:) = hom_sum(:,1,0)
	1124	v_init(:) = hom_sum(:,2,0)
	1125	pt_init(:) = hom_sum(:,4,0)
[4648]	1126	IF ( humidity ) q_init(:) = hom_sum(:,41,0)
	1127	IF ( passive_scalar ) s_init(:) = hom_sum(:,115,0)
[4365]	1128	ENDIF
	1129	!
[4648]	1130	!-- In case of complex terrain and cyclic fill method as initialization, shift initial data in
	1131	!-- the vertical direction for each point in the x-y-plane depending on local surface height.
	1132	IF ( complex_terrain .AND. TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[2550]	1133	DO i = nxlg, nxrg
	1134	DO j = nysg, nyng
[4168]	1135	nz_u_shift = topo_top_ind(j,i,1)
	1136	nz_v_shift = topo_top_ind(j,i,2)
	1137	nz_w_shift = topo_top_ind(j,i,3)
	1138	nz_s_shift = topo_top_ind(j,i,0)
[2550]	1139
[4648]	1140	u(nz_u_shift:nzt+1,j,i) = u(0:nzt+1-nz_u_shift,j,i)
[2550]	1141
	1142	v(nz_v_shift:nzt+1,j,i) = v(0:nzt+1-nz_v_shift,j,i)
	1143
	1144	w(nz_w_shift:nzt+1,j,i) = w(0:nzt+1-nz_w_shift,j,i)
	1145
	1146	p(nz_s_shift:nzt+1,j,i) = p(0:nzt+1-nz_s_shift,j,i)
	1147	pt(nz_s_shift:nzt+1,j,i) = pt(0:nzt+1-nz_s_shift,j,i)
	1148	ENDDO
	1149	ENDDO
	1150	ENDIF
	1151	!
[767]	1152	!-- Initialization of the turbulence recycling method
[4648]	1153	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. turbulent_inflow ) THEN
[767]	1154	!
	1155	!-- First store the profiles to be used at the inflow.
[4648]	1156	!-- These profiles are the (temporally) and horizontally averaged vertical profiles from the
	1157	!-- prerun. Alternatively, prescribed profiles for u,v-components can be used.
[3288]	1158	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,1:num_mean_inflow_profiles) )
[151]	1159
[767]	1160	IF ( use_prescribed_profile_data ) THEN
	1161	mean_inflow_profiles(:,1) = u_init ! u
	1162	mean_inflow_profiles(:,2) = v_init ! v
	1163	ELSE
[328]	1164	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
	1165	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
[767]	1166	ENDIF
	1167	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
[4648]	1168	IF ( humidity ) mean_inflow_profiles(:,6) = hom_sum(:,41,0) ! q
	1169	IF ( passive_scalar ) mean_inflow_profiles(:,7) = hom_sum(:,115,0) ! s
[4365]	1170
[2550]	1171	!
[4648]	1172	!-- In case of complex terrain, determine vertical displacement at inflow boundary and adjust
	1173	!-- mean inflow profiles
[2550]	1174	IF ( complex_terrain ) THEN
[4648]	1175	IF ( nxlg <= 0 .AND. nxrg >= 0 .AND. nysg <= 0 .AND. nyng >= 0 ) THEN
[4168]	1176	nz_u_shift_l = topo_top_ind(j,i,1)
	1177	nz_v_shift_l = topo_top_ind(j,i,2)
	1178	nz_w_shift_l = topo_top_ind(j,i,3)
	1179	nz_s_shift_l = topo_top_ind(j,i,0)
[2550]	1180	ELSE
	1181	nz_u_shift_l = 0
	1182	nz_v_shift_l = 0
	1183	nz_w_shift_l = 0
	1184	nz_s_shift_l = 0
	1185	ENDIF
[151]	1186
[2550]	1187	#if defined( __parallel )
[4648]	1188	CALL MPI_ALLREDUCE( nz_u_shift_l, nz_u_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
	1189	CALL MPI_ALLREDUCE( nz_v_shift_l, nz_v_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
	1190	CALL MPI_ALLREDUCE( nz_w_shift_l, nz_w_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
	1191	CALL MPI_ALLREDUCE( nz_s_shift_l, nz_s_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
[2550]	1192	#else
	1193	nz_u_shift = nz_u_shift_l
	1194	nz_v_shift = nz_v_shift_l
	1195	nz_w_shift = nz_w_shift_l
	1196	nz_s_shift = nz_s_shift_l
	1197	#endif
	1198
	1199	mean_inflow_profiles(:,1) = 0.0_wp
	1200	mean_inflow_profiles(nz_u_shift:nzt+1,1) = hom_sum(0:nzt+1-nz_u_shift,1,0) ! u
	1201
	1202	mean_inflow_profiles(:,2) = 0.0_wp
	1203	mean_inflow_profiles(nz_v_shift:nzt+1,2) = hom_sum(0:nzt+1-nz_v_shift,2,0) ! v
	1204
	1205	mean_inflow_profiles(nz_s_shift:nzt+1,4) = hom_sum(0:nzt+1-nz_s_shift,4,0) ! pt
	1206
	1207	ENDIF
	1208
[151]	1209	!
[4648]	1210	!-- If necessary, adjust the horizontal flow field to the prescribed profiles
[767]	1211	IF ( use_prescribed_profile_data ) THEN
	1212	DO i = nxlg, nxrg
[667]	1213	DO j = nysg, nyng
[328]	1214	DO k = nzb, nzt+1
[767]	1215	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
	1216	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
[328]	1217	ENDDO
[151]	1218	ENDDO
[767]	1219	ENDDO
	1220	ENDIF
[151]	1221
	1222	!
[4648]	1223	!-- Use these mean profiles at the inflow (provided that Dirichlet conditions are used)
[3182]	1224	IF ( bc_dirichlet_l ) THEN
[767]	1225	DO j = nysg, nyng
	1226	DO k = nzb, nzt+1
	1227	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
	1228	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
[1340]	1229	w(k,j,nxlg:-1) = 0.0_wp
[767]	1230	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
[4648]	1231	IF ( humidity ) q(k,j,nxlg:-1) = mean_inflow_profiles(k,6)
	1232	IF ( passive_scalar ) s(k,j,nxlg:-1) = mean_inflow_profiles(k,7)
[767]	1233	ENDDO
	1234	ENDDO
	1235	ENDIF
	1236
[151]	1237	!
[4648]	1238	!-- Calculate the damping factors to be used at the inflow. For a turbulent inflow the
	1239	!-- turbulent fluctuations have to be limited vertically because otherwise the turbulent
	1240	!-- inflow layer will grow in time.
[1340]	1241	IF ( inflow_damping_height == 9999999.9_wp ) THEN
[767]	1242	!
[4648]	1243	!-- Default: use the inversion height calculated by the prerun; if this is zero,
	1244	!-- inflow_damping_height must be explicitly specified.
[1340]	1245	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
[767]	1246	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
	1247	ELSE
[4648]	1248	WRITE( message_string, * ) 'inflow_damping_height must be ', &
	1249	'explicitly specified because&the inversion height ', &
	1250	'calculated by the prerun is zero.'
[767]	1251	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
[292]	1252	ENDIF
[151]	1253
[767]	1254	ENDIF
	1255
[1340]	1256	IF ( inflow_damping_width == 9999999.9_wp ) THEN
[151]	1257	!
[4648]	1258	!-- Default for the transition range: one tenth of the undamped layer
[1340]	1259	inflow_damping_width = 0.1_wp * inflow_damping_height
[151]	1260
[767]	1261	ENDIF
[151]	1262
[767]	1263	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
[151]	1264
[767]	1265	DO k = nzb, nzt+1
[151]	1266
[767]	1267	IF ( zu(k) <= inflow_damping_height ) THEN
[1340]	1268	inflow_damping_factor(k) = 1.0_wp
[996]	1269	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
[4648]	1270	inflow_damping_factor(k) = 1.0_wp - &
	1271	( zu(k) - inflow_damping_height ) / inflow_damping_width
[767]	1272	ELSE
[1340]	1273	inflow_damping_factor(k) = 0.0_wp
[767]	1274	ENDIF
[151]	1275
[767]	1276	ENDDO
[151]	1277
[147]	1278	ENDIF
	1279
[152]	1280	!
[2696]	1281	!-- Inside buildings set velocities back to zero
[4648]	1282	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. topography /= 'flat' ) THEN
[359]	1283	!
[2696]	1284	!-- Inside buildings set velocities back to zero.
	1285	!-- Other scalars (pt, q, s, p, sa, ...) are ignored at present,
[359]	1286	!-- maybe revise later.
[1001]	1287	DO i = nxlg, nxrg
	1288	DO j = nysg, nyng
[2232]	1289	DO k = nzb, nzt
[4648]	1290	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 1 ) )
	1291	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 2 ) )
	1292	w(k,j,i) = MERGE( w(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 3 ) )
[2232]	1293	ENDDO
[359]	1294	ENDDO
[1001]	1295	ENDDO
[359]	1296
	1297	ENDIF
	1298
	1299	!
[4648]	1300	!-- Calculate initial temperature field and other constants used in case of a sloping surface
[1]	1301	IF ( sloping_surface ) CALL init_slope
	1302
	1303	!
[4648]	1304	!-- Initialize new time levels (only done in order to set boundary values including ghost points)
[2696]	1305	pt_p = pt; u_p = u; v_p = v; w_p = w
[1960]	1306	IF ( humidity ) THEN
[1053]	1307	q_p = q
	1308	ENDIF
[1960]	1309	IF ( passive_scalar ) s_p = s
[181]	1310	!
[4648]	1311	!-- Allthough tendency arrays are set in prognostic_equations, they have have to be predefined
	1312	!-- here because they are used (but multiplied with 0) there before they are set.
[2696]	1313	tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
[1960]	1314	IF ( humidity ) THEN
[1340]	1315	tq_m = 0.0_wp
[1053]	1316	ENDIF
[1960]	1317	IF ( passive_scalar ) ts_m = 0.0_wp
[181]	1318
[4648]	1319	IF ( debug_output ) THEN
	1320	CALL debug_message( 'initializing in case of restart / cyclic_fill', 'end' )
	1321	ENDIF
[1384]	1322
[1]	1323	ELSE
	1324	!
	1325	!-- Actually this part of the programm should not be reached
[254]	1326	message_string = 'unknown initializing problem'
	1327	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
[1]	1328	ENDIF
	1329
	1330	!
[667]	1331	!-- Calculate the initial volume flow at the right and north boundary
[709]	1332	IF ( conserve_volume_flow ) THEN
[151]	1333
[767]	1334	IF ( use_prescribed_profile_data ) THEN
[667]	1335
[1340]	1336	volume_flow_initial_l = 0.0_wp
	1337	volume_flow_area_l = 0.0_wp
[732]	1338
[667]	1339	IF ( nxr == nx ) THEN
	1340	DO j = nys, nyn
[2232]	1341	DO k = nzb+1, nzt
[4648]	1342	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1343	u_init(k) * dzw(k) &
	1344	* MERGE( 1.0_wp, 0.0_wp, &
	1345	BTEST( wall_flags_total_0(k,j,nxr), 1 ) &
	1346	)
[2232]	1347
[4648]	1348	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1349	* MERGE( 1.0_wp, 0.0_wp, &
	1350	BTEST( wall_flags_total_0(k,j,nxr), 1 ) &
	1351	)
[767]	1352	ENDDO
	1353	ENDDO
	1354	ENDIF
[4648]	1355
[767]	1356	IF ( nyn == ny ) THEN
	1357	DO i = nxl, nxr
[2232]	1358	DO k = nzb+1, nzt
[4648]	1359	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1360	v_init(k) * dzw(k) &
	1361	* MERGE( 1.0_wp, 0.0_wp, &
	1362	BTEST( wall_flags_total_0(k,nyn,i), 2 ) &
	1363	)
	1364	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1365	* MERGE( 1.0_wp, 0.0_wp, &
	1366	BTEST( wall_flags_total_0(k,nyn,i), 2 ) &
	1367	)
[767]	1368	ENDDO
	1369	ENDDO
	1370	ENDIF
	1371
	1372	#if defined( __parallel )
[4648]	1373	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1), 2, MPI_REAL, &
	1374	MPI_SUM, comm2d, ierr )
	1375	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), 2, MPI_REAL, MPI_SUM, &
	1376	comm2d, ierr )
[767]	1377
	1378	#else
	1379	volume_flow_initial = volume_flow_initial_l
	1380	volume_flow_area = volume_flow_area_l
[4648]	1381	#endif
[767]	1382
	1383	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1384
[1340]	1385	volume_flow_initial_l = 0.0_wp
	1386	volume_flow_area_l = 0.0_wp
[767]	1387
	1388	IF ( nxr == nx ) THEN
	1389	DO j = nys, nyn
[2232]	1390	DO k = nzb+1, nzt
[4648]	1391	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1392	hom_sum(k,1,0) * dzw(k) &
	1393	* MERGE( 1.0_wp, 0.0_wp, &
	1394	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1395	)
	1396	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1397	* MERGE( 1.0_wp, 0.0_wp, &
	1398	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1399	)
[667]	1400	ENDDO
	1401	ENDDO
	1402	ENDIF
[4648]	1403
[667]	1404	IF ( nyn == ny ) THEN
	1405	DO i = nxl, nxr
[2232]	1406	DO k = nzb+1, nzt
[4648]	1407	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1408	hom_sum(k,2,0) * dzw(k) &
	1409	* MERGE( 1.0_wp, 0.0_wp, &
	1410	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1411	)
	1412	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1413	* MERGE( 1.0_wp, 0.0_wp, &
	1414	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1415	)
[667]	1416	ENDDO
	1417	ENDDO
	1418	ENDIF
	1419
[732]	1420	#if defined( __parallel )
[4648]	1421	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1), 2, MPI_REAL, &
	1422	MPI_SUM, comm2d, ierr )
	1423	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), 2, MPI_REAL, MPI_SUM, &
	1424	comm2d, ierr )
[732]	1425
	1426	#else
	1427	volume_flow_initial = volume_flow_initial_l
	1428	volume_flow_area = volume_flow_area_l
[4648]	1429	#endif
[732]	1430
[667]	1431	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	1432
[1340]	1433	volume_flow_initial_l = 0.0_wp
	1434	volume_flow_area_l = 0.0_wp
[732]	1435
[667]	1436	IF ( nxr == nx ) THEN
	1437	DO j = nys, nyn
[2232]	1438	DO k = nzb+1, nzt
[4648]	1439	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1440	u(k,j,nx) * dzw(k) &
	1441	* MERGE( 1.0_wp, 0.0_wp, &
	1442	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1443	)
	1444	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1445	* MERGE( 1.0_wp, 0.0_wp, &
	1446	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1447	)
[667]	1448	ENDDO
	1449	ENDDO
	1450	ENDIF
[4648]	1451
[667]	1452	IF ( nyn == ny ) THEN
	1453	DO i = nxl, nxr
[2232]	1454	DO k = nzb+1, nzt
[4648]	1455	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1456	v(k,ny,i) * dzw(k) &
	1457	* MERGE( 1.0_wp, 0.0_wp, &
	1458	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1459	)
	1460	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1461	* MERGE( 1.0_wp, 0.0_wp, &
	1462	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1463	)
[667]	1464	ENDDO
	1465	ENDDO
	1466	ENDIF
	1467
	1468	#if defined( __parallel )
[4648]	1469	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1), 2, MPI_REAL, &
	1470	MPI_SUM, comm2d, ierr )
	1471	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), 2, MPI_REAL, MPI_SUM, &
	1472	comm2d, ierr )
[667]	1473
	1474	#else
[732]	1475	volume_flow_initial = volume_flow_initial_l
	1476	volume_flow_area = volume_flow_area_l
[4648]	1477	#endif
[667]	1478
[732]	1479	ENDIF
	1480
[151]	1481	!
[4648]	1482	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated from u\|v_bulk instead
[680]	1483	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
	1484	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
	1485	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
	1486	ENDIF
[667]	1487
[680]	1488	ENDIF
[2232]	1489	!
[4648]	1490	!-- In the following, surface properties can be further initialized with input from static driver
	1491	!-- file.
	1492	!-- At the moment this affects only default surfaces. For example, roughness length or sensible /
	1493	!-- latent heat fluxes can be initialized heterogeneously for default surfaces. Therefore, a generic
	1494	!-- routine from netcdf_data_input_mod is called to read a 2D array.
[4150]	1495	IF ( input_pids_static ) THEN
	1496	!
[4151]	1497	!-- Allocate memory for possible static input
	1498	ALLOCATE( tmp_2d%var(nys:nyn,nxl:nxr) )
	1499	tmp_2d%var = 0.0_wp
	1500	!
[4150]	1501	!-- Open the static input file
[4151]	1502	#if defined( __netcdf )
[4648]	1503	CALL open_read_file( TRIM( input_file_static ) // &
	1504	TRIM( coupling_char ), pids_id )
	1505
[4186]	1506	CALL inquire_num_variables( pids_id, num_var_pids )
[4150]	1507	!
	1508	!-- Allocate memory to store variable names and read them
[4186]	1509	ALLOCATE( vars_pids(1:num_var_pids) )
	1510	CALL inquire_variable_names( pids_id, vars_pids )
[4150]	1511	!
[4648]	1512	!-- Input roughness length.
[4186]	1513	IF ( check_existence( vars_pids, 'z0' ) ) THEN
[4150]	1514	!
	1515	!-- Read _FillValue attribute
[4648]	1516	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, .FALSE., 'z0' )
	1517	!
	1518	!-- Read variable
	1519	CALL get_variable( pids_id, 'z0', tmp_2d%var, nxl, nxr, nys, nyn )
[4878]	1520	CALL add_ghost_layers( tmp_2d%var )
[4877]	1521	CALL exchange_horiz_2d( tmp_2d%var )
[4648]	1522	!
	1523	!-- Initialize roughness length. Note, z0 will be only initialized at default-type surfaces.
	1524	!-- At natural or urban z0 is implicitly initialized by the respective parameter lists.
	1525	!-- Initialize horizontal surface elements.
	1526	CALL init_single_surface_properties( surf_def_h(0)%z0, tmp_2d%var, surf_def_h(0)%ns, &
	1527	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
	1528	!
	1529	!-- Initialize roughness also at vertical surface elements.
	1530	!-- Note, the actual 2D input arrays are only defined on the subdomain. Therefore, pass the
	1531	!-- index arrays with their respective offset values.
	1532	DO l = 0, 3
	1533	CALL init_single_surface_properties( surf_def_v(l)%z0, tmp_2d%var, surf_def_v(l)%ns, &
	1534	tmp_2d%fill, surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1535	surf_def_v(l)%j+surf_def_v(l)%joff )
[4150]	1536	ENDDO
[4648]	1537
[4150]	1538	ENDIF
	1539	!
[4648]	1540	!-- Input surface sensible heat flux.
[4514]	1541	IF ( check_existence( vars_pids, 'shf' ) ) THEN
	1542	!
	1543	!-- Read _FillValue attribute
[4648]	1544	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, .FALSE., 'shf' )
[4514]	1545	!
	1546	!-- Read variable
[4648]	1547	CALL get_variable( pids_id, 'shf', tmp_2d%var, nxl, nxr, nys, nyn )
[4878]	1548	CALL add_ghost_layers( tmp_2d%var )
[4877]	1549	CALL exchange_horiz_2d( tmp_2d%var )
[4514]	1550	!
[4648]	1551	!-- Initialize heat flux. Note, shf will be only initialized at default-type surfaces. At
	1552	!-- natural or urban shf is implicitly initialized by the respective parameter lists.
[4514]	1553	!-- Initialize horizontal surface elements.
[4648]	1554	CALL init_single_surface_properties( surf_def_h(0)%shf, tmp_2d%var, surf_def_h(0)%ns, &
	1555	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
[4514]	1556	!
	1557	!-- Initialize heat flux also at vertical surface elements.
[4648]	1558	!-- Note, the actual 2D input arrays are only defined on the subdomain. Therefore, pass the
	1559	!-- index arrays with their respective offset values.
[4514]	1560	DO l = 0, 3
[4648]	1561	CALL init_single_surface_properties( surf_def_v(l)%shf, tmp_2d%var, surf_def_v(l)%ns, &
	1562	tmp_2d%fill, surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1563	surf_def_v(l)%j+surf_def_v(l)%joff )
[4514]	1564	ENDDO
	1565
	1566	ENDIF
	1567	!
[4791]	1568	!-- Input surface latent heat flux.
	1569	IF ( humidity ) THEN
	1570	IF ( check_existence( vars_pids, 'qsws' ) ) THEN
[4514]	1571	!
[4791]	1572	!-- Read _FillValue attribute
	1573	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, .FALSE., 'qsws' )
[4514]	1574	!
[4791]	1575	!-- Read variable
	1576	CALL get_variable( pids_id, 'qsws', tmp_2d%var, nxl, nxr, nys, nyn )
[4878]	1577	CALL add_ghost_layers( tmp_2d%var )
[4877]	1578	CALL exchange_horiz_2d( tmp_2d%var )
[4514]	1579	!
[4791]	1580	!-- Initialize latent heat flux. Note, qsws will be only initialized at default-type surfaces.
	1581	!-- At natural or urban qsws is implicitly initialized by the respective parameter lists.
	1582	!-- Initialize horizontal surface elements.
	1583	CALL init_single_surface_properties( surf_def_h(0)%qsws, tmp_2d%var, surf_def_h(0)%ns,&
	1584	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
[4514]	1585	!
[4791]	1586	!-- Initialize latent heat flux also at vertical surface elements.
	1587	!-- Note, the actual 2D input arrays are only defined on the subdomain. Therefore, pass the
	1588	!-- index arrays with their respective offset values.
	1589	DO l = 0, 3
	1590	CALL init_single_surface_properties( surf_def_v(l)%qsws, tmp_2d%var, &
	1591	surf_def_v(l)%ns, tmp_2d%fill, &
	1592	surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1593	surf_def_v(l)%j+surf_def_v(l)%joff )
	1594	ENDDO
[4514]	1595
[4791]	1596	ENDIF
[4514]	1597	ENDIF
	1598	!
[4791]	1599	!-- Input passive scalar flux.
	1600	IF ( passive_scalar ) THEN
	1601	IF ( check_existence( vars_pids, 'ssws' ) ) THEN
	1602	!
	1603	!-- Read _FillValue attribute
	1604	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, .FALSE., 'ssws' )
	1605	!
	1606	!-- Read variable
	1607	CALL get_variable( pids_id, 'ssws', tmp_2d%var, nxl, nxr, nys, nyn )
[4878]	1608	CALL add_ghost_layers( tmp_2d%var )
[4877]	1609	CALL exchange_horiz_2d( tmp_2d%var )
[4791]	1610	!
	1611	!-- Initialize passive scalar flux. Initialize horizontal surface elements.
	1612	CALL init_single_surface_properties( surf_def_h(0)%ssws, tmp_2d%var, surf_def_h(0)%ns,&
	1613	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
	1614
	1615	DO l = 0, 3
	1616	CALL init_single_surface_properties( surf_def_v(l)%ssws, tmp_2d%var, &
	1617	surf_def_v(l)%ns, tmp_2d%fill, &
	1618	surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1619	surf_def_v(l)%j+surf_def_v(l)%joff )
	1620	ENDDO
	1621
	1622	ENDIF
	1623	ENDIF
	1624	!
[4648]	1625	!-- Additional variables, can be initialized the
[4150]	1626	!-- same way.
[4514]	1627
[4150]	1628	!
[4187]	1629	!-- Finally, close the input file and deallocate temporary arrays
	1630	DEALLOCATE( vars_pids )
[4648]	1631
[4186]	1632	CALL close_input_file( pids_id )
[4151]	1633	#endif
	1634	DEALLOCATE( tmp_2d%var )
[4150]	1635	ENDIF
	1636	!
[4648]	1637	!-- Finally, if random_heatflux is set, disturb shf at horizontal surfaces. Actually, this should be
	1638	!-- done in surface_mod, where all other initializations of surface quantities are done. However,
	1639	!-- this would create a ring dependency, hence, it is done here. Maybe delete disturb_heatflux and
	1640	!-- tranfer the respective code directly into the initialization in surface_mod.
	1641	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[2232]	1642	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[4648]	1643
	1644	IF ( use_surface_fluxes .AND. constant_heatflux .AND. random_heatflux ) THEN
[2232]	1645	IF ( surf_def_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_def_h(0) )
[4671]	1646	IF ( surf_lsm_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_lsm_h(0) )
	1647	IF ( surf_usm_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_usm_h(0) )
[2232]	1648	ENDIF
	1649	ENDIF
[680]	1650
[787]	1651	!
[4648]	1652	!-- Compute total sum of grid points and the mean surface level height for each statistic region.
	1653	!-- These are mainly used for horizontal averaging of turbulence statistics.
	1654	!-- ngp_2dh: number of grid points of a horizontal cross section through the respective statistic
	1655	!-- region
[3747]	1656	!-- ngp_3d: number of grid points of the respective statistic region
[2696]	1657	ngp_2dh_outer_l = 0
	1658	ngp_2dh_outer = 0
	1659	ngp_2dh_s_inner_l = 0
	1660	ngp_2dh_s_inner = 0
	1661	ngp_2dh_l = 0
	1662	ngp_2dh = 0
	1663	ngp_3d_inner_l = 0.0_wp
	1664	ngp_3d_inner = 0
	1665	ngp_3d = 0
	1666	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
	1667
	1668	mean_surface_level_height = 0.0_wp
	1669	mean_surface_level_height_l = 0.0_wp
	1670	!
	1671	!-- To do: New concept for these non-topography grid points!
	1672	DO sr = 0, statistic_regions
	1673	DO i = nxl, nxr
	1674	DO j = nys, nyn
	1675	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
	1676	!
	1677	!-- All xy-grid points
	1678	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1679	!
[4648]	1680	!-- Determine mean surface-level height. In case of downward-facing walls are present,
	1681	!-- more than one surface level exist.
	1682	!-- In this case, use the lowest surface-level height.
	1683	IF ( surf_def_h(0)%start_index(j,i) <= surf_def_h(0)%end_index(j,i) ) THEN
[2696]	1684	m = surf_def_h(0)%start_index(j,i)
	1685	k = surf_def_h(0)%k(m)
[4648]	1686	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) + zw(k-1)
[2696]	1687	ENDIF
[4671]	1688	IF ( surf_lsm_h(0)%start_index(j,i) <= surf_lsm_h(0)%end_index(j,i) ) THEN
	1689	m = surf_lsm_h(0)%start_index(j,i)
	1690	k = surf_lsm_h(0)%k(m)
[4648]	1691	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) + zw(k-1)
[2696]	1692	ENDIF
[4671]	1693	IF ( surf_usm_h(0)%start_index(j,i) <= surf_usm_h(0)%end_index(j,i) ) THEN
	1694	m = surf_usm_h(0)%start_index(j,i)
	1695	k = surf_usm_h(0)%k(m)
[4648]	1696	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) + zw(k-1)
[2696]	1697	ENDIF
	1698
	1699	k_surf = k - 1
	1700
	1701	DO k = nzb, nzt+1
	1702	!
	1703	!-- xy-grid points above topography
[4648]	1704	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + &
	1705	MERGE( 1, 0, BTEST( wall_flags_total_0(k,j,i), 24 ) )
[2696]	1706
[4648]	1707	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + &
	1708	MERGE( 1, 0, BTEST( wall_flags_total_0(k,j,i), 22 ) )
[2696]	1709
	1710	ENDDO
	1711	!
	1712	!-- All grid points of the total domain above topography
	1713	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + ( nz - k_surf + 2 )
	1714
	1715
	1716
	1717	ENDIF
	1718	ENDDO
	1719	ENDDO
	1720	ENDDO
[3747]	1721
[2696]	1722	sr = statistic_regions + 1
	1723	#if defined( __parallel )
	1724	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1725	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
	1726	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1727	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, MPI_INTEGER, MPI_SUM, &
[2696]	1728	comm2d, ierr )
	1729	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1730	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), (nz+2)*sr, MPI_INTEGER, &
	1731	MPI_SUM, comm2d, ierr )
[2696]	1732	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1733	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, MPI_SUM, comm2d, &
	1734	ierr )
[2696]	1735	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
	1736	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1737	CALL MPI_ALLREDUCE( mean_surface_level_height_l(0), mean_surface_level_height(0), sr, MPI_REAL,&
[2696]	1738	MPI_SUM, comm2d, ierr )
	1739	mean_surface_level_height = mean_surface_level_height / REAL( ngp_2dh )
	1740	#else
	1741	ngp_2dh = ngp_2dh_l
	1742	ngp_2dh_outer = ngp_2dh_outer_l
	1743	ngp_2dh_s_inner = ngp_2dh_s_inner_l
	1744	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
	1745	mean_surface_level_height = mean_surface_level_height_l / REAL( ngp_2dh_l )
	1746	#endif
	1747
[4648]	1748	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
[2696]	1749	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
	1750
	1751	!
[4648]	1752	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics, buoyancy, etc. A
	1753	!-- zero value will occur for cases where all grid points of the respective subdomain lie below the
	1754	!-- surface topography
	1755	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
	1756	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), ngp_3d_inner(:) )
	1757	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
[2696]	1758
[4648]	1759	DEALLOCATE( mean_surface_level_height_l, ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, &
	1760	ngp_3d_inner_tmp )
[4548]	1761
[2696]	1762	!
[4648]	1763	!-- Initializae 3D offline nesting in COSMO model and read data from
[3347]	1764	!-- external NetCDF file.
	1765	IF ( nesting_offline ) CALL nesting_offl_init
	1766	!
[787]	1767	!-- Initialize quantities for special advections schemes
	1768	CALL init_advec
[680]	1769
[667]	1770	!
[680]	1771	!-- Impose random perturbation on the horizontal velocity field and then
	1772	!-- remove the divergences from the velocity field at the initial stage
[4648]	1773	IF ( create_disturbances .AND. disturbance_energy_limit /= 0.0_wp .AND. &
	1774	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[680]	1775	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
	1776
[4648]	1777	IF ( debug_output ) THEN
	1778	CALL debug_message( 'creating disturbances + applying pressure solver', 'start' )
	1779	ENDIF
[3849]	1780	!
	1781	!-- Needed for both disturb_field and pres
	1782	!$ACC DATA &
	1783	!$ACC CREATE(tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1784	!$ACC COPY(u(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1785	!$ACC COPY(v(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
	1786
[2232]	1787	CALL disturb_field( 'u', tend, u )
	1788	CALL disturb_field( 'v', tend, v )
[1384]	1789
[3849]	1790	!$ACC DATA &
	1791	!$ACC CREATE(d(nzb+1:nzt,nys:nyn,nxl:nxr)) &
	1792	!$ACC COPY(w(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1793	!$ACC COPY(p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1794	!$ACC COPYIN(rho_air(nzb:nzt+1), rho_air_zw(nzb:nzt+1)) &
	1795	!$ACC COPYIN(ddzu(1:nzt+1), ddzw(1:nzt+1)) &
[4346]	1796	!$ACC COPYIN(wall_flags_total_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
[3849]	1797	!$ACC COPYIN(bc_h(0:1)) &
	1798	!$ACC COPYIN(bc_h(0)%i(1:bc_h(0)%ns)) &
	1799	!$ACC COPYIN(bc_h(0)%j(1:bc_h(0)%ns)) &
	1800	!$ACC COPYIN(bc_h(0)%k(1:bc_h(0)%ns)) &
	1801	!$ACC COPYIN(bc_h(1)%i(1:bc_h(1)%ns)) &
	1802	!$ACC COPYIN(bc_h(1)%j(1:bc_h(1)%ns)) &
	1803	!$ACC COPYIN(bc_h(1)%k(1:bc_h(1)%ns))
	1804
[680]	1805	n_sor = nsor_ini
	1806	CALL pres
	1807	n_sor = nsor
[1384]	1808
[3849]	1809	!$ACC END DATA
	1810	!$ACC END DATA
	1811
[4648]	1812	IF ( debug_output ) THEN
	1813	CALL debug_message( 'creating disturbances + applying pressure solver', 'end' )
	1814	ENDIF
[3987]	1815
[680]	1816	ENDIF
	1817
[3294]	1818	IF ( .NOT. ocean_mode ) THEN
[3274]	1819
	1820	ALLOCATE( hyp(nzb:nzt+1) )
	1821	ALLOCATE( d_exner(nzb:nzt+1) )
	1822	ALLOCATE( exner(nzb:nzt+1) )
	1823	ALLOCATE( hyrho(nzb:nzt+1) )
[1849]	1824	!
[3274]	1825	!-- Check temperature in case of too large domain height
	1826	DO k = nzb, nzt+1
[4648]	1827	IF ( ( pt_surface * exner_function( surface_pressure * 100.0_wp ) - g/c_p * zu(k) ) &
	1828	< 0.0_wp ) THEN
	1829	WRITE( message_string, * ) 'absolute temperature < 0.0 at zu(', k, ') = ', zu(k)
[3685]	1830	CALL message( 'init_3d_model', 'PA0142', 1, 2, 0, 6, 0 )
[3274]	1831	ENDIF
	1832	ENDDO
	1833
	1834	!
	1835	!-- Calculate vertical profile of the hydrostatic pressure (hyp)
[4648]	1836	hyp = barometric_formula( zu, pt_surface * exner_function( surface_pressure * 100.0_wp ),&
	1837	surface_pressure * 100.0_wp )
	1838	d_exner = exner_function_invers( hyp )
	1839	exner = 1.0_wp / exner_function_invers( hyp )
	1840	hyrho = ideal_gas_law_rho_pt( hyp, pt_init )
[3274]	1841	!
	1842	!-- Compute reference density
[4648]	1843	rho_surface = ideal_gas_law_rho( surface_pressure * 100.0_wp, &
	1844	pt_surface * exner_function( surface_pressure * 100.0_wp ) )
[3274]	1845
[96]	1846	ENDIF
[1]	1847
	1848	!
	1849	!-- If required, initialize particles
[3159]	1850	IF ( agents_active ) CALL mas_init
	1851	!
[3937]	1852	!-- Initialization of synthetic turbulence generator
[4848]	1853	IF ( syn_turb_gen ) CALL stg_init
[2696]	1854	!
[3685]	1855	!-- Initializing actions for all other modules
	1856	CALL module_interface_init
[2696]	1857	!
[4648]	1858	!-- Initialize surface layer (done after LSM as roughness length are required for initialization
[3685]	1859	IF ( constant_flux_layer ) CALL init_surface_layer_fluxes
[2977]	1860	!
[3421]	1861	!-- Initialize surface data output
[3685]	1862	IF ( surface_output ) CALL surface_data_output_init
[3472]	1863	!
[4648]	1864	!-- Initialize the ws-scheme.
	1865	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
[3711]	1866	!
	1867	!-- Perform post-initializing checks for all other modules
	1868	CALL module_interface_init_checks
[1]	1869
	1870	!
[4648]	1871	!-- Initialize surface forcing corresponding to large-scale forcing. Therein,
[4548]	1872	!-- initialize heat-fluxes, etc. via datatype. Revise it later!
[4648]	1873	IF ( large_scale_forcing .AND. lsf_surf ) THEN
[4548]	1874	IF ( use_surface_fluxes .AND. constant_heatflux ) THEN
[4648]	1875	CALL ls_forcing_surf( simulated_time )
[4548]	1876	ENDIF
	1877	ENDIF
	1878	!
[4648]	1879	!-- Setting weighting factors for calculation of perturbation pressure and turbulent quantities from
	1880	!-- the RK substeps.
	1881	IF ( TRIM( timestep_scheme ) == 'runge-kutta-3' ) THEN ! for RK3-method
[709]	1882
[1322]	1883	weight_substep(1) = 1._wp/6._wp
	1884	weight_substep(2) = 3._wp/10._wp
	1885	weight_substep(3) = 8._wp/15._wp
[709]	1886
[1322]	1887	weight_pres(1) = 1._wp/3._wp
	1888	weight_pres(2) = 5._wp/12._wp
	1889	weight_pres(3) = 1._wp/4._wp
[709]	1890
[4648]	1891	ELSEIF ( TRIM( timestep_scheme ) == 'runge-kutta-2' ) THEN ! for RK2-method
[709]	1892
[1322]	1893	weight_substep(1) = 1._wp/2._wp
	1894	weight_substep(2) = 1._wp/2._wp
[4648]	1895
[1322]	1896	weight_pres(1) = 1._wp/2._wp
[4648]	1897	weight_pres(2) = 1._wp/2._wp
[709]	1898
[1001]	1899	ELSE ! for Euler-method
[709]	1900
[4648]	1901	weight_substep(1) = 1.0_wp
	1902	weight_pres(1) = 1.0_wp
[709]	1903
[673]	1904	ENDIF
	1905
	1906	!
[1]	1907	!-- Initialize Rayleigh damping factors
[1340]	1908	rdf = 0.0_wp
	1909	rdf_sc = 0.0_wp
	1910	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
[3294]	1911
	1912	IF ( .NOT. ocean_mode ) THEN
[108]	1913	DO k = nzb+1, nzt
	1914	IF ( zu(k) >= rayleigh_damping_height ) THEN
[4648]	1915	rdf(k) = rayleigh_damping_factor * &
	1916	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
	1917	/ ( zu(nzt) - rayleigh_damping_height ) ) &
	1918	)**2
[108]	1919	ENDIF
	1920	ENDDO
	1921	ELSE
[3294]	1922	!
[4648]	1923	!-- In ocean mode, rayleigh damping is applied in the lower part of the model domain
[108]	1924	DO k = nzt, nzb+1, -1
	1925	IF ( zu(k) <= rayleigh_damping_height ) THEN
[4648]	1926	rdf(k) = rayleigh_damping_factor * &
	1927	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
	1928	/ ( rayleigh_damping_height - zu(nzb+1) ) ) &
	1929	)**2
[108]	1930	ENDIF
	1931	ENDDO
	1932	ENDIF
[3294]	1933
[1]	1934	ENDIF
[785]	1935	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
[1]	1936
	1937	!
[4648]	1938	!-- Initialize the starting level and the vertical smoothing factor used for the external pressure
	1939	!-- gradient
[1340]	1940	dp_smooth_factor = 1.0_wp
[240]	1941	IF ( dp_external ) THEN
	1942	!
[4648]	1943	!-- Set the starting level dp_level_ind_b only if it has not been set before (e.g. in init_grid).
[240]	1944	IF ( dp_level_ind_b == 0 ) THEN
	1945	ind_array = MINLOC( ABS( dp_level_b - zu ) )
[4648]	1946	dp_level_ind_b = ind_array(1) - 1 + nzb
[240]	1947	! MINLOC uses lower array bound 1
	1948	ENDIF
	1949	IF ( dp_smooth ) THEN
[1340]	1950	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
[240]	1951	DO k = dp_level_ind_b+1, nzt
[4648]	1952	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
	1953	( REAL( k - dp_level_ind_b, KIND=wp ) / &
	1954	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
[240]	1955	ENDDO
	1956	ENDIF
	1957	ENDIF
	1958
	1959	!
[4648]	1960	!-- Initialize damping zone for the potential temperature in case of non-cyclic lateral boundaries.
	1961	!-- The damping zone has the maximum value at the inflow boundary and decreases to zero at
	1962	!-- pt_damping_width.
[1340]	1963	ptdf_x = 0.0_wp
	1964	ptdf_y = 0.0_wp
[1159]	1965	IF ( bc_lr_dirrad ) THEN
[996]	1966	DO i = nxl, nxr
[978]	1967	IF ( ( i * dx ) < pt_damping_width ) THEN
[4648]	1968	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
	1969	REAL( pt_damping_width - i * dx, KIND=wp ) / &
	1970	REAL( pt_damping_width, KIND=wp ) ) )**2
	1971	ENDIF
[73]	1972	ENDDO
[1159]	1973	ELSEIF ( bc_lr_raddir ) THEN
[996]	1974	DO i = nxl, nxr
[978]	1975	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
[4648]	1976	ptdf_x(i) = pt_damping_factor * SIN( pi * 0.5_wp * &
	1977	( ( i - nx ) * dx + pt_damping_width ) / &
	1978	REAL( pt_damping_width, KIND=wp ) )**2
[73]	1979	ENDIF
[4648]	1980	ENDDO
[1159]	1981	ELSEIF ( bc_ns_dirrad ) THEN
[996]	1982	DO j = nys, nyn
[978]	1983	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
[4648]	1984	ptdf_y(j) = pt_damping_factor * SIN( pi * 0.5_wp * &
	1985	( ( j - ny ) * dy + pt_damping_width ) / &
	1986	REAL( pt_damping_width, KIND=wp ) )**2
[1]	1987	ENDIF
[4648]	1988	ENDDO
[1159]	1989	ELSEIF ( bc_ns_raddir ) THEN
[996]	1990	DO j = nys, nyn
[978]	1991	IF ( ( j * dy ) < pt_damping_width ) THEN
[4648]	1992	ptdf_y(j) = pt_damping_factor * SIN( pi * 0.5_wp * &
	1993	( pt_damping_width - j * dy ) / &
	1994	REAL( pt_damping_width, KIND=wp ) )**2
[1]	1995	ENDIF
[73]	1996	ENDDO
[1]	1997	ENDIF
[51]	1998
[1]	1999	!
[4648]	2000	!-- Input binary data file is not needed anymore. This line must be placed after call of user_init!
[1]	2001	CALL close_file( 13 )
[2934]	2002	!
[4648]	2003	!-- In case of nesting, put an barrier to assure that all parent and child domains finished
	2004	!-- initialization.
[2934]	2005	#if defined( __parallel )
	2006	IF ( nested_run ) CALL MPI_BARRIER( MPI_COMM_WORLD, ierr )
	2007	#endif
[1]	2008
[2934]	2009
[3987]	2010	CALL location_message( 'model initialization', 'finished' )
[1]	2011
	2012	END SUBROUTINE init_3d_model

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source: palm/trunk/SOURCE/init_3d_model.f90 @ 4899

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