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init_3d_model.f90 @ 4784

Last change on this file since 4784 was 4783, checked in by raasch, 3 years ago

bugfix for reading restart data with MPI-I/O (does not work with blockwise I/O); missed revision comments from previous commit added

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/palm/branches/chemistry/SOURCE/init_3d_model.f90	2047-3190,3218-3297
/palm/branches/rans/SOURCE/init_3d_model.f90	2078-3128
/palm/branches/resler/SOURCE/init_3d_model.f90	2023-4492
/palm/branches/salsa/SOURCE/init_3d_model.f90	2503-3581
/palm/branches/forwind/SOURCE/init_3d_model.f90	1564-1913
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File size: 85.5 KB

Rev	Line
[1682]	1	!> @file init_3d_model.f90
[4648]	2	!--------------------------------------------------------------------------------------------------!
[2696]	3	! This file is part of the PALM model system.
[1036]	4	!
[4648]	5	! PALM is free software: you can redistribute it and/or modify it under the terms of the GNU General
	6	! Public License as published by the Free Software Foundation, either version 3 of the License, or
	7	! (at your option) any later version.
[1036]	8	!
[4648]	9	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
	10	! implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
	11	! Public License for more details.
[1036]	12	!
[4648]	13	! You should have received a copy of the GNU General Public License along with PALM. If not, see
	14	! <http://www.gnu.org/licenses/>.
[1036]	15	!
[4360]	16	! Copyright 1997-2020 Leibniz Universitaet Hannover
[4648]	17	!--------------------------------------------------------------------------------------------------!
[1036]	18	!
[254]	19	! Current revisions:
[732]	20	! ------------------
[4648]	21	!
	22	!
[2233]	23	! Former revisions:
	24	! -----------------
	25	! $Id: init_3d_model.f90 4783 2020-11-13 13:58:45Z suehring $
[4783]	26	! bugfix for reading restart data with MPI-I/O (does not work with blockwise I/O)
	27	!
	28	! 4680 2020-09-16 10:20:34Z gronemeier
[4680]	29	! Add option to fix date or time of the simulation
	30	!
	31	! 4671 2020-09-09 20:27:58Z pavelkrc
[4671]	32	! Implementation of downward facing USM and LSM surfaces
	33	!
	34	! 4648 2020-08-25 07:52:08Z raasch
[4648]	35	! file re-formatted to follow the PALM coding standard
	36	!
	37	! 4548 2020-05-28 19:36:45Z suehring
[4548]	38	! Bugfix, move call for lsf_forcing_surf after lsf_init is called
[4648]	39	!
[4548]	40	! 4514 2020-04-30 16:29:59Z suehring
[4648]	41	! Add possibility to initialize surface sensible and latent heat fluxes via a static driver.
	42	!
[4514]	43	! 4493 2020-04-10 09:49:43Z pavelkrc
[4648]	44	! Overwrite u_init, v_init, pt_init, q_init and s_init with hom for all cyclic_fill-cases, not only
	45	! for turbulent_inflow = .TRUE.
	46	!
[4365]	47	! 4360 2020-01-07 11:25:50Z suehring
[4648]	48	! Introduction of wall_flags_total_0, which currently sets bits based on static topography
	49	! information used in wall_flags_static_0
	50	!
[4346]	51	! 4329 2019-12-10 15:46:36Z motisi
[4329]	52	! Renamed wall_flags_0 to wall_flags_static_0
[4648]	53	!
[4329]	54	! 4286 2019-10-30 16:01:14Z resler
[4227]	55	! implement new palm_date_time_mod
[4648]	56	!
[4227]	57	! 4223 2019-09-10 09:20:47Z gronemeier
[4648]	58	! Deallocate temporary string array since it may be re-used to read different input data in other
	59	! modules
	60	!
[4187]	61	! 4186 2019-08-23 16:06:14Z suehring
[4648]	62	! Design change, use variables defined in netcdf_data_input_mod to read netcd variables rather than
	63	! define local ones.
	64	!
[4186]	65	! 4185 2019-08-23 13:49:38Z oliver.maas
[4185]	66	! For initializing_actions = ' cyclic_fill':
[4648]	67	! Overwrite u_init, v_init, pt_init, q_init and s_init with the (temporally) and horizontally
	68	! averaged vertical profiles from the end of the prerun, because these profiles shall be used as the
	69	! basic state for the rayleigh damping and the pt_damping.
	70	!
[4185]	71	! 4182 2019-08-22 15:20:23Z scharf
[4182]	72	! Corrected "Former revisions" section
[4648]	73	!
[4182]	74	! 4168 2019-08-16 13:50:17Z suehring
[4168]	75	! Replace function get_topography_top_index by topo_top_ind
[4648]	76	!
[4168]	77	! 4151 2019-08-09 08:24:30Z suehring
[4151]	78	! Add netcdf directive around input calls (fix for last commit)
[4648]	79	!
[4151]	80	! 4150 2019-08-08 20:00:47Z suehring
[4648]	81	! Input of additional surface variables independent on land- or urban-surface model
	82	!
[4150]	83	! 4131 2019-08-02 11:06:18Z monakurppa
[4131]	84	! Allocate sums and sums_l to allow profile output for salsa variables.
[4648]	85	!
[4131]	86	! 4130 2019-08-01 13:04:13Z suehring
[4648]	87	! Effectively reduce 3D initialization to 1D initial profiles. This is because 3D initialization
	88	! produces structures in the w-component that are correlated with the processor grid for some
	89	! unknown reason
	90	!
[4130]	91	! 4090 2019-07-11 15:06:47Z Giersch
[4090]	92	! Unused variables removed
[4648]	93	!
[4090]	94	! 4088 2019-07-11 13:57:56Z Giersch
[4088]	95	! Pressure and density profile calculations revised using basic functions
[4648]	96	!
[4088]	97	! 4048 2019-06-21 21:00:21Z knoop
[4028]	98	! Further modularization of particle code components
[4648]	99	!
[4028]	100	! 4017 2019-06-06 12:16:46Z schwenkel
[4648]	101	! Convert most location messages to debug messages to reduce output in job logfile to a minimum
	102	!
[3939]	103	! unused variable removed
[4648]	104	!
[3939]	105	! 3937 2019-04-29 15:09:07Z suehring
[4648]	106	! Move initialization of synthetic turbulence generator behind initialization of offline nesting.
	107	! Remove call for stg_adjust, as this is now already done in stg_init.
	108	!
[3937]	109	! 3900 2019-04-16 15:17:43Z suehring
[3900]	110	! Fix problem with LOD = 2 initialization
[4648]	111	!
[3900]	112	! 3885 2019-04-11 11:29:34Z kanani
[4648]	113	! Changes related to global restructuring of location messages and introduction of additional debug
	114	! messages
	115	!
[3885]	116	! 3849 2019-04-01 16:35:16Z knoop
[3747]	117	! Move initialization of rmask before initializing user_init_arrays
[4648]	118	!
[3747]	119	! 3711 2019-01-31 13:44:26Z knoop
[3711]	120	! Introduced module_interface_init_checks for post-init checks in modules
[4648]	121	!
[3711]	122	! 3700 2019-01-26 17:03:42Z knoop
[3685]	123	! Some interface calls moved to module_interface + cleanup
[4648]	124	!
[3685]	125	! 3648 2019-01-02 16:35:46Z suehring
[3648]	126	! Rename subroutines for surface-data output
[3569]	127	!
[4182]	128	! Revision 1.1 1998/03/09 16:22:22 raasch
	129	! Initial revision
	130	!
	131	!
[1]	132	! Description:
	133	! ------------
[1682]	134	!> Allocation of arrays and initialization of the 3D model via
	135	!> a) pre-run the 1D model
	136	!> or
	137	!> b) pre-set constant linear profiles
	138	!> or
	139	!> c) read values of a previous run
[4648]	140	!--------------------------------------------------------------------------------------------------!
[1682]	141	SUBROUTINE init_3d_model
[1]	142
[3298]	143
[667]	144	USE advec_ws
[1320]	145
[1]	146	USE arrays_3d
[1849]	147
[4648]	148	USE basic_constants_and_equations_mod, &
	149	ONLY: barometric_formula, c_p, exner_function, exner_function_invers, g, &
	150	ideal_gas_law_rho, ideal_gas_law_rho_pt, l_v, pi
[3274]	151
[4648]	152	USE bulk_cloud_model_mod, &
[3685]	153	ONLY: bulk_cloud_model
[3274]	154
[4648]	155	USE chem_modules, &
[3685]	156	ONLY: max_pr_cs ! ToDo: this dependency needs to be removed cause it is ugly #new_dom
[3298]	157
[1]	158	USE control_parameters
[3298]	159
[4648]	160	USE grid_variables, &
[2037]	161	ONLY: dx, dy, ddx2_mg, ddy2_mg
[2817]	162
[1]	163	USE indices
[3469]	164
[1320]	165	USE kinds
[4648]	166
	167	USE lsf_nudging_mod, &
[3685]	168	ONLY: ls_forcing_surf
[1849]	169
[4648]	170	USE model_1d_mod, &
[3241]	171	ONLY: init_1d_model, l1d, u1d, v1d
[2338]	172
[4648]	173	USE module_interface, &
	174	ONLY: module_interface_init_arrays, &
	175	module_interface_init, &
[3711]	176	module_interface_init_checks
[3685]	177
[4648]	178	USE multi_agent_system_mod, &
[3159]	179	ONLY: agents_active, mas_init
	180
[4648]	181	USE netcdf_interface, &
[3700]	182	ONLY: dots_max
[2696]	183
[4648]	184	USE netcdf_data_input_mod, &
	185	ONLY: char_fill, &
	186	check_existence, &
	187	close_input_file, &
	188	get_attribute, &
	189	get_variable, &
	190	init_3d, &
	191	input_pids_static, &
	192	inquire_num_variables, &
	193	inquire_variable_names, &
	194	input_file_static, &
	195	netcdf_data_input_init_3d, &
	196	num_var_pids, &
	197	open_read_file, &
	198	pids_id, &
	199	real_2d, &
[4186]	200	vars_pids
[4648]	201
	202	USE nesting_offl_mod, &
[3347]	203	ONLY: nesting_offl_init
[3294]	204
[4648]	205	USE palm_date_time_mod, &
[4680]	206	ONLY: init_date_time
[4227]	207
[1]	208	USE pegrid
[3298]	209
[3524]	210	#if defined( __parallel )
[4648]	211	USE pmc_interface, &
[2934]	212	ONLY: nested_run
[3524]	213	#endif
[2934]	214
[4648]	215	USE random_function_mod
[3685]	216
[4648]	217	USE random_generator_parallel, &
[2172]	218	ONLY: init_parallel_random_generator
[3685]	219
[4648]	220	USE read_restart_data_mod, &
	221	ONLY: rrd_local, rrd_read_parts_of_global
[3685]	222
[4648]	223	USE statistics, &
	224	ONLY: hom, hom_sum, mean_surface_level_height, pr_palm, rmask, statistic_regions, sums, &
	225	sums_divnew_l, sums_divold_l, sums_l, sums_l_l, sums_wsts_bc_l, ts_value, &
[1833]	226	weight_pres, weight_substep
[2259]	227
[4648]	228	USE synthetic_turbulence_generator_mod, &
[3939]	229	ONLY: stg_init, use_syn_turb_gen
[3685]	230
[4648]	231	USE surface_layer_fluxes_mod, &
[1691]	232	ONLY: init_surface_layer_fluxes
[2232]	233
[4648]	234	USE surface_mod, &
	235	ONLY : init_single_surface_properties, &
	236	init_surface_arrays, &
	237	init_surfaces, &
	238	surf_def_h, &
	239	surf_def_v, &
	240	surf_lsm_h, &
[4168]	241	surf_usm_h
[3685]	242
[3849]	243	#if defined( _OPENACC )
[4648]	244	USE surface_mod, &
[3849]	245	ONLY : bc_h
	246	#endif
	247
[4648]	248	USE surface_data_output_mod, &
[3648]	249	ONLY: surface_data_output_init
[3685]	250
[2007]	251	USE transpose_indices
[1]	252
[4648]	253
[1]	254	IMPLICIT NONE
[4648]	255
[4150]	256	INTEGER(iwp) :: i !< grid index in x direction
	257	INTEGER(iwp) :: ind_array(1) !< dummy used to determine start index for external pressure forcing
	258	INTEGER(iwp) :: j !< grid index in y direction
	259	INTEGER(iwp) :: k !< grid index in z direction
	260	INTEGER(iwp) :: k_surf !< surface level index
[4648]	261	INTEGER(iwp) :: l !< running index over surface orientation
	262	INTEGER(iwp) :: m !< index of surface element in surface data type
[4150]	263	INTEGER(iwp) :: nz_u_shift !< topography-top index on u-grid, used to vertically shift initial profiles
	264	INTEGER(iwp) :: nz_v_shift !< topography-top index on v-grid, used to vertically shift initial profiles
	265	INTEGER(iwp) :: nz_w_shift !< topography-top index on w-grid, used to vertically shift initial profiles
	266	INTEGER(iwp) :: nz_s_shift !< topography-top index on scalar-grid, used to vertically shift initial profiles
	267	INTEGER(iwp) :: nz_u_shift_l !< topography-top index on u-grid, used to vertically shift initial profiles
	268	INTEGER(iwp) :: nz_v_shift_l !< topography-top index on v-grid, used to vertically shift initial profiles
	269	INTEGER(iwp) :: nz_w_shift_l !< topography-top index on w-grid, used to vertically shift initial profiles
	270	INTEGER(iwp) :: nz_s_shift_l !< topography-top index on scalar-grid, used to vertically shift initial profiles
	271	INTEGER(iwp) :: nzt_l !< index of top PE boundary for multigrid level
	272	INTEGER(iwp) :: sr !< index of statistic region
[1]	273
[4648]	274	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !< toal number of horizontal grid points in statistical region on
	275	!< subdomain
[1]	276
[4648]	277	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !< number of horizontal non-wall bounded grid points on
	278	!< subdomain
	279	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !< number of horizontal non-topography grid points on
	280	!< subdomain
[1]	281
[2037]	282	REAL(wp) :: dx_l !< grid spacing along x on different multigrid level
	283	REAL(wp) :: dy_l !< grid spacing along y on different multigrid level
	284
[4648]	285	REAL(wp), DIMENSION(:), ALLOCATABLE :: init_l !< dummy array used for averaging 3D data to obtain
	286	!< inital profiles
	287	REAL(wp), DIMENSION(:), ALLOCATABLE :: mean_surface_level_height_l !< mean surface level height on subdomain
	288	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !< total number of non-topography grid points on subdomain
	289	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !< total number of non-topography grid points
	290	REAL(wp), DIMENSION(:), ALLOCATABLE :: p_hydrostatic !< hydrostatic pressure
	291
[3547]	292	REAL(wp), DIMENSION(1:3) :: volume_flow_area_l !< area of lateral and top model domain surface on local subdomain
	293	REAL(wp), DIMENSION(1:3) :: volume_flow_initial_l !< initial volume flow into model domain
[1]	294
[4648]	295	TYPE(real_2d) :: tmp_2d !< temporary variable to input additional surface-data from static file
[1]	296
[3987]	297	CALL location_message( 'model initialization', 'start' )
[4227]	298	!
	299	!-- Set reference date-time
[4680]	300	CALL init_date_time( date_time_str=origin_date_time, &
	301	use_fixed_date=use_fixed_date, &
	302	use_fixed_time=use_fixed_time )
[3987]	303
	304	IF ( debug_output ) CALL debug_message( 'allocating arrays', 'start' )
[1]	305	!
	306	!-- Allocate arrays
[4648]	307	ALLOCATE( mean_surface_level_height(0:statistic_regions), &
	308	mean_surface_level_height_l(0:statistic_regions), &
	309	ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
	310	ngp_3d(0:statistic_regions), &
	311	ngp_3d_inner(0:statistic_regions), &
	312	ngp_3d_inner_l(0:statistic_regions), &
	313	ngp_3d_inner_tmp(0:statistic_regions), &
	314	sums_divnew_l(0:statistic_regions), &
[1]	315	sums_divold_l(0:statistic_regions) )
[1195]	316	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
[4648]	317	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
	318	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
	319	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
	320	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
	321	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
	322	sums(nzb:nzt+1,pr_palm+max_pr_user+max_pr_cs+max_pr_salsa), &
[4131]	323	sums_l(nzb:nzt+1,pr_palm+max_pr_user+max_pr_cs+max_pr_salsa,0:threads_per_task-1), &
[4648]	324	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
[3700]	325	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions) )
	326	ALLOCATE( ts_value(dots_max,0:statistic_regions) )
[978]	327	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
[1]	328
[4648]	329	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
	330	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1010]	331	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	332
[4648]	333	ALLOCATE( pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	334	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	335	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	336	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	337	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	338	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	339	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	340	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	341	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	342	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	343	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1788]	344	IF ( .NOT. neutral ) THEN
[1032]	345	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	346	ENDIF
[673]	347	!
[3747]	348	!-- Pre-set masks for regional statistics. Default is the total model domain.
[4648]	349	!-- Ghost points are excluded because counting values at the ghost boundaries would bias the
	350	!-- statistics.
[3747]	351	rmask = 1.0_wp
	352	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
	353	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
	354	!
[4648]	355	!-- Following array is required for perturbation pressure within the iterative pressure solvers. For
	356	!-- the multistep schemes (Runge-Kutta), array p holds the weighted average of the substeps and
	357	!-- cannot be used in the Poisson solver.
[707]	358	IF ( psolver == 'sor' ) THEN
	359	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1575]	360	ELSEIF ( psolver(1:9) == 'multigrid' ) THEN
[707]	361	!
	362	!-- For performance reasons, multigrid is using one ghost layer only
	363	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[673]	364	ENDIF
[1]	365
[1111]	366	!
	367	!-- Array for storing constant coeffficients of the tridiagonal solver
	368	IF ( psolver == 'poisfft' ) THEN
[1212]	369	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
[1111]	370	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
	371	ENDIF
	372
[1960]	373	IF ( humidity ) THEN
[1]	374	!
[1960]	375	!-- 3D-humidity
[4648]	376	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	377	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	378	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	379	vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	380	ENDIF
	381
[1960]	382	IF ( passive_scalar ) THEN
[1]	383
[1960]	384	!
	385	!-- 3D scalar arrays
[4648]	386	ALLOCATE( s_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	387	s_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1960]	388	s_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[3636]	389
[1960]	390	ENDIF
	391
[1]	392	!
[4648]	393	!-- Allocate and set 1d-profiles for Stokes drift velocity. It may be set to non-zero values later
	394	!-- in ocean_init.
	395	ALLOCATE( u_stokes_zu(nzb:nzt+1), u_stokes_zw(nzb:nzt+1), &
[3302]	396	v_stokes_zu(nzb:nzt+1), v_stokes_zw(nzb:nzt+1) )
	397	u_stokes_zu(:) = 0.0_wp
	398	u_stokes_zw(:) = 0.0_wp
	399	v_stokes_zu(:) = 0.0_wp
	400	v_stokes_zw(:) = 0.0_wp
	401
	402	!
[2037]	403	!-- Allocation of anelastic and Boussinesq approximation specific arrays
	404	ALLOCATE( p_hydrostatic(nzb:nzt+1) )
	405	ALLOCATE( rho_air(nzb:nzt+1) )
	406	ALLOCATE( rho_air_zw(nzb:nzt+1) )
	407	ALLOCATE( drho_air(nzb:nzt+1) )
	408	ALLOCATE( drho_air_zw(nzb:nzt+1) )
	409	!
[4648]	410	!-- Density profile calculation for anelastic and Boussinesq approximation.
	411	!-- In case of a Boussinesq approximation, a constant density is calculated mainly for output
	412	!-- purposes. This density does not need to be considered in the model's system of equations.
[4088]	413	IF ( TRIM( approximation ) == 'anelastic' ) THEN
[2037]	414	DO k = nzb, nzt+1
[4648]	415	p_hydrostatic(k) = barometric_formula(zu(k), pt_surface * &
	416	exner_function(surface_pressure * 100.0_wp), &
	417	surface_pressure * 100.0_wp)
	418
[4088]	419	rho_air(k) = ideal_gas_law_rho_pt(p_hydrostatic(k), pt_init(k))
[2037]	420	ENDDO
[4648]	421
[2037]	422	DO k = nzb, nzt
	423	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
	424	ENDDO
[4648]	425
	426	rho_air_zw(nzt+1) = rho_air_zw(nzt) + 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
	427
[2037]	428	ELSE
[2252]	429	DO k = nzb, nzt+1
[4648]	430	p_hydrostatic(k) = barometric_formula(zu(nzb), pt_surface * &
	431	exner_function(surface_pressure * 100.0_wp), &
	432	surface_pressure * 100.0_wp)
[4088]	433
	434	rho_air(k) = ideal_gas_law_rho_pt(p_hydrostatic(k), pt_init(nzb))
[2252]	435	ENDDO
[4648]	436
[2252]	437	DO k = nzb, nzt
	438	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
	439	ENDDO
[4648]	440
	441	rho_air_zw(nzt+1) = rho_air_zw(nzt) + 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
	442
[2037]	443	ENDIF
[2696]	444	!
[4648]	445	!-- Compute the inverse density array in order to avoid expencive divisions
[2037]	446	drho_air = 1.0_wp / rho_air
	447	drho_air_zw = 1.0_wp / rho_air_zw
	448
	449	!
	450	!-- Allocation of flux conversion arrays
	451	ALLOCATE( heatflux_input_conversion(nzb:nzt+1) )
	452	ALLOCATE( waterflux_input_conversion(nzb:nzt+1) )
	453	ALLOCATE( momentumflux_input_conversion(nzb:nzt+1) )
	454	ALLOCATE( heatflux_output_conversion(nzb:nzt+1) )
	455	ALLOCATE( waterflux_output_conversion(nzb:nzt+1) )
	456	ALLOCATE( momentumflux_output_conversion(nzb:nzt+1) )
	457
	458	!
[4648]	459	!-- Calculate flux conversion factors according to approximation and in-/output mode
[2037]	460	DO k = nzb, nzt+1
	461
	462	IF ( TRIM( flux_input_mode ) == 'kinematic' ) THEN
	463	heatflux_input_conversion(k) = rho_air_zw(k)
	464	waterflux_input_conversion(k) = rho_air_zw(k)
	465	momentumflux_input_conversion(k) = rho_air_zw(k)
	466	ELSEIF ( TRIM( flux_input_mode ) == 'dynamic' ) THEN
[3274]	467	heatflux_input_conversion(k) = 1.0_wp / c_p
[2037]	468	waterflux_input_conversion(k) = 1.0_wp / l_v
	469	momentumflux_input_conversion(k) = 1.0_wp
	470	ENDIF
	471
	472	IF ( TRIM( flux_output_mode ) == 'kinematic' ) THEN
	473	heatflux_output_conversion(k) = drho_air_zw(k)
	474	waterflux_output_conversion(k) = drho_air_zw(k)
	475	momentumflux_output_conversion(k) = drho_air_zw(k)
	476	ELSEIF ( TRIM( flux_output_mode ) == 'dynamic' ) THEN
[3274]	477	heatflux_output_conversion(k) = c_p
[2037]	478	waterflux_output_conversion(k) = l_v
	479	momentumflux_output_conversion(k) = 1.0_wp
	480	ENDIF
	481
	482	IF ( .NOT. humidity ) THEN
	483	waterflux_input_conversion(k) = 1.0_wp
	484	waterflux_output_conversion(k) = 1.0_wp
	485	ENDIF
	486
	487	ENDDO
	488
	489	!
[4648]	490	!-- In case of multigrid method, compute grid lengths and grid factors for the grid levels with
	491	!-- respective density on each grid.
[2037]	492	IF ( psolver(1:9) == 'multigrid' ) THEN
	493
	494	ALLOCATE( ddx2_mg(maximum_grid_level) )
	495	ALLOCATE( ddy2_mg(maximum_grid_level) )
	496	ALLOCATE( dzu_mg(nzb+1:nzt+1,maximum_grid_level) )
	497	ALLOCATE( dzw_mg(nzb+1:nzt+1,maximum_grid_level) )
	498	ALLOCATE( f1_mg(nzb+1:nzt,maximum_grid_level) )
	499	ALLOCATE( f2_mg(nzb+1:nzt,maximum_grid_level) )
	500	ALLOCATE( f3_mg(nzb+1:nzt,maximum_grid_level) )
	501	ALLOCATE( rho_air_mg(nzb:nzt+1,maximum_grid_level) )
	502	ALLOCATE( rho_air_zw_mg(nzb:nzt+1,maximum_grid_level) )
	503
	504	dzu_mg(:,maximum_grid_level) = dzu
	505	rho_air_mg(:,maximum_grid_level) = rho_air
[4648]	506	!
	507	!-- Next line to ensure an equally spaced grid.
[2037]	508	dzu_mg(1,maximum_grid_level) = dzu(2)
[4648]	509	rho_air_mg(nzb,maximum_grid_level) = rho_air(nzb) + (rho_air(nzb) - rho_air(nzb+1))
[2037]	510
	511	dzw_mg(:,maximum_grid_level) = dzw
	512	rho_air_zw_mg(:,maximum_grid_level) = rho_air_zw
	513	nzt_l = nzt
	514	DO l = maximum_grid_level-1, 1, -1
	515	dzu_mg(nzb+1,l) = 2.0_wp * dzu_mg(nzb+1,l+1)
	516	dzw_mg(nzb+1,l) = 2.0_wp * dzw_mg(nzb+1,l+1)
[4648]	517	rho_air_mg(nzb,l) = rho_air_mg(nzb,l+1) + ( rho_air_mg(nzb,l+1) - &
	518	rho_air_mg(nzb+1,l+1) )
	519	rho_air_zw_mg(nzb,l) = rho_air_zw_mg(nzb,l+1) + ( rho_air_zw_mg(nzb,l+1) - &
	520	rho_air_zw_mg(nzb+1,l+1) )
[2037]	521	rho_air_mg(nzb+1,l) = rho_air_mg(nzb+1,l+1)
	522	rho_air_zw_mg(nzb+1,l) = rho_air_zw_mg(nzb+1,l+1)
	523	nzt_l = nzt_l / 2
	524	DO k = 2, nzt_l+1
	525	dzu_mg(k,l) = dzu_mg(2k-2,l+1) + dzu_mg(2k-1,l+1)
	526	dzw_mg(k,l) = dzw_mg(2k-2,l+1) + dzw_mg(2k-1,l+1)
	527	rho_air_mg(k,l) = rho_air_mg(2*k-1,l+1)
	528	rho_air_zw_mg(k,l) = rho_air_zw_mg(2*k-1,l+1)
	529	ENDDO
	530	ENDDO
	531
	532	nzt_l = nzt
	533	dx_l = dx
	534	dy_l = dy
	535	DO l = maximum_grid_level, 1, -1
	536	ddx2_mg(l) = 1.0_wp / dx_l**2
	537	ddy2_mg(l) = 1.0_wp / dy_l**2
	538	DO k = nzb+1, nzt_l
	539	f2_mg(k,l) = rho_air_zw_mg(k,l) / ( dzu_mg(k+1,l) * dzw_mg(k,l) )
	540	f3_mg(k,l) = rho_air_zw_mg(k-1,l) / ( dzu_mg(k,l) * dzw_mg(k,l) )
[4648]	541	f1_mg(k,l) = 2.0_wp * ( ddx2_mg(l) + ddy2_mg(l) ) &
[2037]	542	* rho_air_mg(k,l) + f2_mg(k,l) + f3_mg(k,l)
	543	ENDDO
	544	nzt_l = nzt_l / 2
	545	dx_l = dx_l * 2.0_wp
	546	dy_l = dy_l * 2.0_wp
	547	ENDDO
	548
	549	ENDIF
	550
	551	!
[1299]	552	!-- 1D-array for large scale subsidence velocity
[1361]	553	IF ( .NOT. ALLOCATED( w_subs ) ) THEN
	554	ALLOCATE ( w_subs(nzb:nzt+1) )
	555	w_subs = 0.0_wp
	556	ENDIF
[1299]	557
	558	!
[4648]	559	!-- Arrays to store velocity data from t-dt and the phase speeds which are needed for radiation
	560	!-- boundary conditions.
[3182]	561	IF ( bc_radiation_l ) THEN
[4648]	562	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
	563	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
[667]	564	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
[73]	565	ENDIF
[3182]	566	IF ( bc_radiation_r ) THEN
[4648]	567	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	568	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
[667]	569	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
[73]	570	ENDIF
[3182]	571	IF ( bc_radiation_l .OR. bc_radiation_r ) THEN
[4648]	572	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), c_w(nzb:nzt+1,nysg:nyng) )
[106]	573	ENDIF
[3182]	574	IF ( bc_radiation_s ) THEN
[4648]	575	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
	576	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
[667]	577	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
[73]	578	ENDIF
[3182]	579	IF ( bc_radiation_n ) THEN
[4648]	580	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	581	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
[667]	582	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
[73]	583	ENDIF
[3182]	584	IF ( bc_radiation_s .OR. bc_radiation_n ) THEN
[4648]	585	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), c_w(nzb:nzt+1,nxlg:nxrg) )
[106]	586	ENDIF
[4648]	587	IF ( bc_radiation_l .OR. bc_radiation_r .OR. bc_radiation_s .OR. bc_radiation_n ) THEN
	588	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
[978]	589	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
	590	ENDIF
[73]	591
	592	!
[1]	593	!-- Initial assignment of the pointers
[1032]	594	IF ( .NOT. neutral ) THEN
	595	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
	596	ELSE
	597	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
	598	ENDIF
[1001]	599	u => u_1; u_p => u_2; tu_m => u_3
	600	v => v_1; v_p => v_2; tv_m => v_3
	601	w => w_1; w_p => w_2; tw_m => w_3
[1]	602
[1960]	603	IF ( humidity ) THEN
[1001]	604	q => q_1; q_p => q_2; tq_m => q_3
[3274]	605	vpt => vpt_1
[1001]	606	ENDIF
[4648]	607
[1960]	608	IF ( passive_scalar ) THEN
	609	s => s_1; s_p => s_2; ts_m => s_3
[4648]	610	ENDIF
[1]	611
	612	!
[2696]	613	!-- Initialize surface arrays
[2232]	614	CALL init_surface_arrays
	615	!
[3294]	616	!-- Allocate arrays for other modules
[3685]	617	CALL module_interface_init_arrays
[1551]	618
[1914]	619
[2320]	620	!
[4648]	621	!-- Allocate arrays containing the RK coefficient for calculation of perturbation pressure and
	622	!-- turbulent fluxes. At this point values are set for pressure calculation during initialization
	623	!-- (where no timestep is done). Further below the values needed within the timestep scheme will be
	624	!-- set.
	625	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
[1878]	626	weight_pres(1:intermediate_timestep_count_max) )
[1340]	627	weight_substep = 1.0_wp
	628	weight_pres = 1.0_wp
[1918]	629	intermediate_timestep_count = 0 ! needed when simulated_time = 0.0
[4648]	630
[3987]	631	IF ( debug_output ) CALL debug_message( 'allocating arrays', 'end' )
[1918]	632
[673]	633	!
[3014]	634	!-- Initialize time series
	635	ts_value = 0.0_wp
	636
	637	!
[1918]	638	!-- Initialize local summation arrays for routine flow_statistics.
[4648]	639	!-- This is necessary because they may not yet have been initialized when they are called from
	640	!-- flow_statistics (or - depending on the chosen model run - are never initialized)
	641	sums_divnew_l = 0.0_wp
	642	sums_divold_l = 0.0_wp
	643	sums_l_l = 0.0_wp
	644	sums_wsts_bc_l = 0.0_wp
	645
[1918]	646	!
[1]	647	!-- Initialize model variables
[4648]	648	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[328]	649	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[1]	650	!
[2696]	651	!-- Initialization with provided input data derived from larger-scale model
	652	IF ( INDEX( initializing_actions, 'inifor' ) /= 0 ) THEN
[3987]	653	IF ( debug_output ) CALL debug_message( 'initializing with INIFOR', 'start' )
[2696]	654	!
[4648]	655	!-- Read initial 1D profiles or 3D data from NetCDF file, depending on the provided
	656	!-- level-of-detail.
	657	!-- At the moment, only u, v, w, pt and q are provided.
[2696]	658	CALL netcdf_data_input_init_3d
	659	!
[4648]	660	!-- Please note, Inifor provides data from nzb+1 to nzt.
	661	!-- Bottom and top boundary conditions for Inifor profiles are already set (just after
	662	!-- reading), so that this is not necessary here.
	663	!-- Depending on the provided level-of-detail, initial Inifor data is either stored on data
	664	!-- type (lod=1), or directly on 3D arrays (lod=2).
	665	!-- In order to obtain also initial profiles in case of lod=2 (which is required for e.g.
	666	!-- damping), average over 3D data.
[3182]	667	IF( init_3d%lod_u == 1 ) THEN
	668	u_init = init_3d%u_init
[4648]	669	ELSEIF( init_3d%lod_u == 2 ) THEN
	670	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	671	DO k = nzb, nzt+1
	672	init_l(k) = SUM( u(k,nys:nyn,nxl:nxr) )
	673	ENDDO
	674	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
[1384]	675
[3182]	676	#if defined( __parallel )
[4648]	677	CALL MPI_ALLREDUCE( init_l, u_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	678	#else
	679	u_init = init_l
	680	#endif
	681	DEALLOCATE( init_l )
[3051]	682
[2696]	683	ENDIF
[4648]	684
	685	IF( init_3d%lod_v == 1 ) THEN
[3182]	686	v_init = init_3d%v_init
[4648]	687	ELSEIF( init_3d%lod_v == 2 ) THEN
	688	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	689	DO k = nzb, nzt+1
	690	init_l(k) = SUM( v(k,nys:nyn,nxl:nxr) )
	691	ENDDO
	692	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
[2696]	693
[3182]	694	#if defined( __parallel )
[4648]	695	CALL MPI_ALLREDUCE( init_l, v_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	696	#else
	697	v_init = init_l
	698	#endif
	699	DEALLOCATE( init_l )
	700	ENDIF
	701	IF( .NOT. neutral ) THEN
	702	IF( init_3d%lod_pt == 1 ) THEN
	703	pt_init = init_3d%pt_init
[4648]	704	ELSEIF( init_3d%lod_pt == 2 ) THEN
	705	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	706	DO k = nzb, nzt+1
	707	init_l(k) = SUM( pt(k,nys:nyn,nxl:nxr) )
	708	ENDDO
	709	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
	710
	711	#if defined( __parallel )
[4648]	712	CALL MPI_ALLREDUCE( init_l, pt_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	713	#else
	714	pt_init = init_l
	715	#endif
	716	DEALLOCATE( init_l )
	717	ENDIF
	718	ENDIF
	719
	720
	721	IF( humidity ) THEN
	722	IF( init_3d%lod_q == 1 ) THEN
	723	q_init = init_3d%q_init
[4648]	724	ELSEIF( init_3d%lod_q == 2 ) THEN
	725	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	726	DO k = nzb, nzt+1
	727	init_l(k) = SUM( q(k,nys:nyn,nxl:nxr) )
	728	ENDDO
	729	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
	730
	731	#if defined( __parallel )
[4648]	732	CALL MPI_ALLREDUCE( init_l, q_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	733	#else
	734	q_init = init_l
	735	#endif
	736	DEALLOCATE( init_l )
	737	ENDIF
	738	ENDIF
	739
[2696]	740	!
[4648]	741	!-- Write initial profiles onto 3D arrays.
	742	!-- Work-around, 3D initialization of u,v,w creates artificial structures which correlate with
	743	!-- the processor grid. The reason for this is still unknown. To work-around this, 3D
	744	!-- initialization will be effectively reduce to a 1D initialization where no such artificial
	745	!-- structures appear.
[2696]	746	DO i = nxlg, nxrg
	747	DO j = nysg, nyng
[4648]	748	IF( init_3d%lod_u == 1 .OR. init_3d%lod_u == 2 ) u(:,j,i) = u_init(:)
	749	IF( init_3d%lod_v == 1 .OR. init_3d%lod_u == 2 ) v(:,j,i) = v_init(:)
	750	IF( .NOT. neutral .AND. ( init_3d%lod_pt == 1 .OR. init_3d%lod_pt == 2 ) ) &
[3051]	751	pt(:,j,i) = pt_init(:)
[4648]	752	IF( humidity .AND. ( init_3d%lod_q == 1 .OR. init_3d%lod_q == 2 ) ) &
[4130]	753	q(:,j,i) = q_init(:)
[2696]	754	ENDDO
	755	ENDDO
	756	!
[4648]	757	!-- Set geostrophic wind components.
[2938]	758	IF ( init_3d%from_file_ug ) THEN
	759	ug(:) = init_3d%ug_init(:)
	760	ENDIF
	761	IF ( init_3d%from_file_vg ) THEN
	762	vg(:) = init_3d%vg_init(:)
	763	ENDIF
[3404]	764	!
	765	!-- Set bottom and top boundary condition for geostrophic wind
[2938]	766	ug(nzt+1) = ug(nzt)
	767	vg(nzt+1) = vg(nzt)
[3404]	768	ug(nzb) = ug(nzb+1)
	769	vg(nzb) = vg(nzb+1)
[2696]	770	!
	771	!-- Set inital w to 0
	772	w = 0.0_wp
	773
	774	IF ( passive_scalar ) THEN
	775	DO i = nxlg, nxrg
	776	DO j = nysg, nyng
	777	s(:,j,i) = s_init
	778	ENDDO
	779	ENDDO
	780	ENDIF
	781
	782	!
[4648]	783	!-- Set velocity components at non-atmospheric / oceanic grid points to zero.
[4346]	784	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
	785	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
	786	w = MERGE( w, 0.0_wp, BTEST( wall_flags_total_0, 3 ) )
[2700]	787	!
[4648]	788	!-- Initialize surface variables, e.g. friction velocity, momentum fluxes, etc.
	789	CALL init_surfaces
[2696]	790
[4648]	791	IF ( debug_output ) CALL debug_message( 'initializing with INIFOR', 'end' )
[2696]	792	!
	793	!-- Initialization via computed 1D-model profiles
	794	ELSEIF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
	795
[4648]	796	IF ( debug_output ) CALL debug_message( 'initializing with 1D model profiles', 'start' )
[1]	797	!
	798	!-- Use solutions of the 1D model as initial profiles,
	799	!-- start 1D model
	800	CALL init_1d_model
	801	!
	802	!-- Transfer initial profiles to the arrays of the 3D model
[667]	803	DO i = nxlg, nxrg
	804	DO j = nysg, nyng
[1]	805	pt(:,j,i) = pt_init
	806	u(:,j,i) = u1d
	807	v(:,j,i) = v1d
	808	ENDDO
	809	ENDDO
	810
[1960]	811	IF ( humidity ) THEN
[667]	812	DO i = nxlg, nxrg
	813	DO j = nysg, nyng
[1]	814	q(:,j,i) = q_init
	815	ENDDO
	816	ENDDO
	817	ENDIF
[2292]	818
[1960]	819	IF ( passive_scalar ) THEN
	820	DO i = nxlg, nxrg
	821	DO j = nysg, nyng
	822	s(:,j,i) = s_init
	823	ENDDO
[4648]	824	ENDDO
[1960]	825	ENDIF
[1]	826	!
	827	!-- Store initial profiles for output purposes etc.
[2696]	828	IF ( .NOT. constant_diffusion ) THEN
[1]	829	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	830	ENDIF
	831	!
[2696]	832	!-- Set velocities back to zero
[4346]	833	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
[4648]	834	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
[1]	835	!
[4648]	836	!-- WARNING: The extra boundary conditions set after running the 1D model impose an error on
	837	!-- -------- the divergence one layer below the topography; need to correct later
	838	!-- ATTENTION: Provisional correction for Piacsek & Williams advection scheme: keep u and v
	839	!-- ---------- zero one layer below the topography.
[2696]	840	IF ( ibc_uv_b == 1 ) THEN
[667]	841	!
[2696]	842	!-- Neumann condition
	843	DO i = nxl-1, nxr+1
	844	DO j = nys-1, nyn+1
	845	u(nzb,j,i) = u(nzb+1,j,i)
	846	v(nzb,j,i) = v(nzb+1,j,i)
[1]	847	ENDDO
[2696]	848	ENDDO
[1]	849
	850	ENDIF
[2618]	851	!
[4648]	852	!-- Initialize surface variables, e.g. friction velocity, momentum fluxes, etc.
[2618]	853	CALL init_surfaces
[1]	854
[4648]	855	IF ( debug_output ) CALL debug_message( 'initializing with 1D model profiles', 'end' )
[1384]	856
[4648]	857	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) THEN
[1241]	858
[4648]	859	IF ( debug_output ) CALL debug_message( 'initializing with constant profiles', 'start' )
[2259]	860
	861	!
[4648]	862	!-- Use constructed initial profiles (velocity constant with height, temperature profile with
	863	!-- constant gradient)
[667]	864	DO i = nxlg, nxrg
	865	DO j = nysg, nyng
[1]	866	pt(:,j,i) = pt_init
	867	u(:,j,i) = u_init
	868	v(:,j,i) = v_init
	869	ENDDO
	870	ENDDO
	871	!
[2758]	872	!-- Mask topography
[4346]	873	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
	874	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
[2758]	875	!
[4648]	876	!-- Set initial horizontal velocities at the lowest computational grid levels to zero in order
	877	!-- to avoid too small time steps caused by the diffusion limit in the initial phase of a run
	878	!-- (at k=1, dz/2 occurs in the limiting formula!).
	879	!-- Please note, in case land- or urban-surface model is used and a spinup is applied, masking
	880	!-- the lowest computational level is not possible as MOST as well as energy-balance
	881	!-- parametrizations will not work with zero wind velocity.
	882	IF ( ibc_uv_b /= 1 .AND. .NOT. spinup ) THEN
[1815]	883	DO i = nxlg, nxrg
	884	DO j = nysg, nyng
[2232]	885	DO k = nzb, nzt
[4648]	886	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 20 ) )
	887	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 21 ) )
[2232]	888	ENDDO
[1815]	889	ENDDO
	890	ENDDO
	891	ENDIF
[1]	892
[1960]	893	IF ( humidity ) THEN
[667]	894	DO i = nxlg, nxrg
	895	DO j = nysg, nyng
[1]	896	q(:,j,i) = q_init
	897	ENDDO
	898	ENDDO
	899	ENDIF
[4648]	900
[1960]	901	IF ( passive_scalar ) THEN
	902	DO i = nxlg, nxrg
	903	DO j = nysg, nyng
	904	s(:,j,i) = s_init
	905	ENDDO
	906	ENDDO
	907	ENDIF
[1]	908
[1920]	909	!
[4648]	910	!-- Compute initial temperature field and other constants used in case of a sloping surface.
[1]	911	IF ( sloping_surface ) CALL init_slope
[2618]	912	!
[4648]	913	!-- Initialize surface variables, e.g. friction velocity, momentum fluxes, etc.
[2618]	914	CALL init_surfaces
[4648]	915
[3987]	916	IF ( debug_output ) CALL debug_message( 'initializing with constant profiles', 'end' )
[1384]	917
[4648]	918	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) THEN
[1384]	919
[3987]	920	IF ( debug_output ) CALL debug_message( 'initializing by user', 'start' )
[46]	921	!
[4648]	922	!-- Pre-initialize surface variables, i.e. setting start- and end-indices at each
	923	!-- (j,i)-location. Please note, this does not supersede user-defined initialization of
	924	!-- surface quantities.
[2618]	925	CALL init_surfaces
	926	!
[46]	927	!-- Initialization will completely be done by the user
	928	CALL user_init_3d_model
	929
[3987]	930	IF ( debug_output ) CALL debug_message( 'initializing by user', 'end' )
[1384]	931
[1]	932	ENDIF
[1384]	933
[4648]	934	IF ( debug_output ) THEN
	935	CALL debug_message( 'initializing statistics, boundary conditions, etc.', 'start' )
	936	ENDIF
[1384]	937
[667]	938	!
	939	!-- Bottom boundary
[4648]	940	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
[1340]	941	u(nzb,:,:) = 0.0_wp
	942	v(nzb,:,:) = 0.0_wp
[667]	943	ENDIF
[1]	944
	945	!
[151]	946	!-- Apply channel flow boundary condition
[132]	947	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
[1340]	948	u(nzt+1,:,:) = 0.0_wp
	949	v(nzt+1,:,:) = 0.0_wp
[132]	950	ENDIF
	951
	952	!
[1]	953	!-- Calculate virtual potential temperature
[1960]	954	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
[1]	955
	956	!
[4648]	957	!-- Store initial profiles for output purposes etc.. Please note, in case of initialization of u,
	958	!-- v, w, pt, and q via output data derived from larger scale models, data will not be
	959	!-- horizontally homogeneous. Actually, a mean profile should be calculated before.
[1]	960	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	961	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
[667]	962	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
[1340]	963	hom(nzb,1,5,:) = 0.0_wp
	964	hom(nzb,1,6,:) = 0.0_wp
[1]	965	ENDIF
	966	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	967
[75]	968	IF ( humidity ) THEN
[1]	969	!
[4648]	970	!-- Store initial profile of total water content, virtual potential temperature
[1]	971	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	972	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
[2696]	973	!
[4648]	974	!-- Store initial profile of mixing ratio and potential temperature
[3274]	975	IF ( bulk_cloud_model .OR. cloud_droplets ) THEN
[1]	976	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	977	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	978	ENDIF
	979	ENDIF
	980
[2696]	981	!
	982	!-- Store initial scalar profile
[1]	983	IF ( passive_scalar ) THEN
[2513]	984	hom(:,1,121,:) = SPREAD( s(:,nys,nxl), 2, statistic_regions+1 )
[1]	985	ENDIF
	986
	987	!
[1400]	988	!-- Initialize the random number generators (from numerical recipes)
	989	CALL random_function_ini
[4648]	990
[1400]	991	IF ( random_generator == 'random-parallel' ) THEN
[3241]	992	CALL init_parallel_random_generator( nx, nys, nyn, nxl, nxr )
[1400]	993	ENDIF
	994	!
[4648]	995	!-- Set the reference state to be used in the buoyancy terms (for ocean runs the reference state
	996	!-- will be set (overwritten) in init_ocean).
[1179]	997	IF ( use_single_reference_value ) THEN
[4648]	998	IF ( .NOT. humidity ) THEN
[1179]	999	ref_state(:) = pt_reference
	1000	ELSE
	1001	ref_state(:) = vpt_reference
	1002	ENDIF
	1003	ELSE
[4648]	1004	IF ( .NOT. humidity ) THEN
[1179]	1005	ref_state(:) = pt_init(:)
	1006	ELSE
	1007	ref_state(:) = vpt(:,nys,nxl)
	1008	ENDIF
	1009	ENDIF
[152]	1010
	1011	!
[707]	1012	!-- For the moment, vertical velocity is zero
[1340]	1013	w = 0.0_wp
[1]	1014
	1015	!
	1016	!-- Initialize array sums (must be defined in first call of pres)
[1340]	1017	sums = 0.0_wp
[1]	1018
	1019	!
[707]	1020	!-- In case of iterative solvers, p must get an initial value
[1575]	1021	IF ( psolver(1:9) == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
[707]	1022	!
[1]	1023	!-- Impose vortex with vertical axis on the initial velocity profile
	1024	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	1025	CALL init_rankine
	1026	ENDIF
	1027
	1028	!
[4648]	1029	!-- Impose temperature anomaly (advection test only) or warm air bubble close to surface.
	1030	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 .OR. &
[3035]	1031	INDEX( initializing_actions, 'initialize_bubble' ) /= 0 ) THEN
[1]	1032	CALL init_pt_anomaly
	1033	ENDIF
[4648]	1034
[1]	1035	!
	1036	!-- If required, change the surface temperature at the start of the 3D run
[1340]	1037	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
[1]	1038	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	1039	ENDIF
	1040
	1041	!
	1042	!-- If required, change the surface humidity/scalar at the start of the 3D
	1043	!-- run
[4648]	1044	IF ( humidity .AND. q_surface_initial_change /= 0.0_wp ) &
[1]	1045	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
[4648]	1046
	1047	IF ( passive_scalar .AND. s_surface_initial_change /= 0.0_wp ) &
[1960]	1048	s(nzb,:,:) = s(nzb,:,:) + s_surface_initial_change
[1]	1049
[4648]	1050
[1]	1051	!
	1052	!-- Initialize old and new time levels.
[2696]	1053	tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
	1054	pt_p = pt; u_p = u; v_p = v; w_p = w
[1]	1055
[1960]	1056	IF ( humidity ) THEN
[1340]	1057	tq_m = 0.0_wp
[1]	1058	q_p = q
	1059	ENDIF
[4648]	1060
[1960]	1061	IF ( passive_scalar ) THEN
	1062	ts_m = 0.0_wp
	1063	s_p = s
[4648]	1064	ENDIF
[1]	1065
[4648]	1066	IF ( debug_output ) THEN
	1067	CALL debug_message( 'initializing statistics, boundary conditions, etc.', 'end' )
	1068	ENDIF
[94]	1069
[1788]	1070	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
[2232]	1071	TRIM( initializing_actions ) == 'cyclic_fill' ) &
[1]	1072	THEN
[1384]	1073
[4648]	1074	IF ( debug_output ) THEN
	1075	CALL debug_message( 'initializing in case of restart / cyclic_fill', 'start' )
	1076	ENDIF
[1]	1077	!
[4648]	1078	!-- Initialize surface elements and its attributes, e.g. heat- and momentumfluxes, roughness,
	1079	!-- scaling parameters. As number of surface elements might be different between runs, e.g. in
	1080	!-- case of cyclic fill, and not all surface elements are read, surface elements need to be
	1081	!-- initialized before.
	1082	!-- Please note, in case of cyclic fill, surfaces should be initialized after restart data is
	1083	!-- read, else, individual settings of surface parameters will be overwritten from data of
	1084	!-- precursor run, hence, init_surfaces is called a second time after reading the restart data.
	1085	CALL init_surfaces
[3609]	1086	!
[4648]	1087	!-- When reading data for cyclic fill of 3D prerun data files, read some of the global variables
	1088	!-- from the restart file which are required for initializing the inflow
[328]	1089	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[559]	1090
[4783]	1091	!
	1092	!-- Blockwise I/O does not work together with MPI-I/O
	1093	IF ( restart_data_format_input(1:3) == 'mpi' ) THEN
	1094	CALL rrd_read_parts_of_global
	1095	ELSE
	1096	DO i = 0, io_blocks-1
	1097	IF ( i == io_group ) THEN
	1098	CALL rrd_read_parts_of_global
	1099	ENDIF
	1100	#if defined( __parallel )
	1101	CALL MPI_BARRIER( comm2d, ierr )
	1102	#endif
	1103	ENDDO
	1104	ENDIF
	1105
	1106	ENDIF
	1107
	1108	!
	1109	!-- Read processor specific binary data from restart file.
	1110	!-- Blockwise I/O does not work together with MPI-I/O
	1111	IF ( restart_data_format_input(1:3) == 'mpi' ) THEN
	1112	CALL rrd_local
	1113	ELSE
[759]	1114	DO i = 0, io_blocks-1
	1115	IF ( i == io_group ) THEN
[4783]	1116	CALL rrd_local
[759]	1117	ENDIF
	1118	#if defined( __parallel )
	1119	CALL MPI_BARRIER( comm2d, ierr )
	1120	#endif
	1121	ENDDO
[767]	1122	ENDIF
	1123
[4648]	1124
[4365]	1125	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1126
[3608]	1127	!
[4648]	1128	!-- In case of cyclic fill, call init_surfaces a second time, so that surface properties such
	1129	!-- as heat fluxes are initialized as prescribed.
[3609]	1130	CALL init_surfaces
[767]	1131
[328]	1132	!
[4648]	1133	!-- Overwrite u_init, v_init, pt_init, q_init and s_init with the horizontally mean (hom)
	1134	!-- vertical profiles from the end of the prerun, because these profiles shall be used as the
	1135	!-- reference state for the rayleigh damping and the pt_damping. This is especially important
	1136	!-- for the use of large_scale_subsidence, because the reference temperature in the free
	1137	!-- atmosphere changes in time.
[4365]	1138	u_init(:) = hom_sum(:,1,0)
	1139	v_init(:) = hom_sum(:,2,0)
	1140	pt_init(:) = hom_sum(:,4,0)
[4648]	1141	IF ( humidity ) q_init(:) = hom_sum(:,41,0)
	1142	IF ( passive_scalar ) s_init(:) = hom_sum(:,115,0)
[4365]	1143	ENDIF
	1144	!
[4648]	1145	!-- In case of complex terrain and cyclic fill method as initialization, shift initial data in
	1146	!-- the vertical direction for each point in the x-y-plane depending on local surface height.
	1147	IF ( complex_terrain .AND. TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[2550]	1148	DO i = nxlg, nxrg
	1149	DO j = nysg, nyng
[4168]	1150	nz_u_shift = topo_top_ind(j,i,1)
	1151	nz_v_shift = topo_top_ind(j,i,2)
	1152	nz_w_shift = topo_top_ind(j,i,3)
	1153	nz_s_shift = topo_top_ind(j,i,0)
[2550]	1154
[4648]	1155	u(nz_u_shift:nzt+1,j,i) = u(0:nzt+1-nz_u_shift,j,i)
[2550]	1156
	1157	v(nz_v_shift:nzt+1,j,i) = v(0:nzt+1-nz_v_shift,j,i)
	1158
	1159	w(nz_w_shift:nzt+1,j,i) = w(0:nzt+1-nz_w_shift,j,i)
	1160
	1161	p(nz_s_shift:nzt+1,j,i) = p(0:nzt+1-nz_s_shift,j,i)
	1162	pt(nz_s_shift:nzt+1,j,i) = pt(0:nzt+1-nz_s_shift,j,i)
	1163	ENDDO
	1164	ENDDO
	1165	ENDIF
	1166	!
[767]	1167	!-- Initialization of the turbulence recycling method
[4648]	1168	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. turbulent_inflow ) THEN
[767]	1169	!
	1170	!-- First store the profiles to be used at the inflow.
[4648]	1171	!-- These profiles are the (temporally) and horizontally averaged vertical profiles from the
	1172	!-- prerun. Alternatively, prescribed profiles for u,v-components can be used.
[3288]	1173	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,1:num_mean_inflow_profiles) )
[151]	1174
[767]	1175	IF ( use_prescribed_profile_data ) THEN
	1176	mean_inflow_profiles(:,1) = u_init ! u
	1177	mean_inflow_profiles(:,2) = v_init ! v
	1178	ELSE
[328]	1179	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
	1180	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
[767]	1181	ENDIF
	1182	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
[4648]	1183	IF ( humidity ) mean_inflow_profiles(:,6) = hom_sum(:,41,0) ! q
	1184	IF ( passive_scalar ) mean_inflow_profiles(:,7) = hom_sum(:,115,0) ! s
[4365]	1185
[2550]	1186	!
[4648]	1187	!-- In case of complex terrain, determine vertical displacement at inflow boundary and adjust
	1188	!-- mean inflow profiles
[2550]	1189	IF ( complex_terrain ) THEN
[4648]	1190	IF ( nxlg <= 0 .AND. nxrg >= 0 .AND. nysg <= 0 .AND. nyng >= 0 ) THEN
[4168]	1191	nz_u_shift_l = topo_top_ind(j,i,1)
	1192	nz_v_shift_l = topo_top_ind(j,i,2)
	1193	nz_w_shift_l = topo_top_ind(j,i,3)
	1194	nz_s_shift_l = topo_top_ind(j,i,0)
[2550]	1195	ELSE
	1196	nz_u_shift_l = 0
	1197	nz_v_shift_l = 0
	1198	nz_w_shift_l = 0
	1199	nz_s_shift_l = 0
	1200	ENDIF
[151]	1201
[2550]	1202	#if defined( __parallel )
[4648]	1203	CALL MPI_ALLREDUCE( nz_u_shift_l, nz_u_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
	1204	CALL MPI_ALLREDUCE( nz_v_shift_l, nz_v_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
	1205	CALL MPI_ALLREDUCE( nz_w_shift_l, nz_w_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
	1206	CALL MPI_ALLREDUCE( nz_s_shift_l, nz_s_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
[2550]	1207	#else
	1208	nz_u_shift = nz_u_shift_l
	1209	nz_v_shift = nz_v_shift_l
	1210	nz_w_shift = nz_w_shift_l
	1211	nz_s_shift = nz_s_shift_l
	1212	#endif
	1213
	1214	mean_inflow_profiles(:,1) = 0.0_wp
	1215	mean_inflow_profiles(nz_u_shift:nzt+1,1) = hom_sum(0:nzt+1-nz_u_shift,1,0) ! u
	1216
	1217	mean_inflow_profiles(:,2) = 0.0_wp
	1218	mean_inflow_profiles(nz_v_shift:nzt+1,2) = hom_sum(0:nzt+1-nz_v_shift,2,0) ! v
	1219
	1220	mean_inflow_profiles(nz_s_shift:nzt+1,4) = hom_sum(0:nzt+1-nz_s_shift,4,0) ! pt
	1221
	1222	ENDIF
	1223
[151]	1224	!
[4648]	1225	!-- If necessary, adjust the horizontal flow field to the prescribed profiles
[767]	1226	IF ( use_prescribed_profile_data ) THEN
	1227	DO i = nxlg, nxrg
[667]	1228	DO j = nysg, nyng
[328]	1229	DO k = nzb, nzt+1
[767]	1230	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
	1231	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
[328]	1232	ENDDO
[151]	1233	ENDDO
[767]	1234	ENDDO
	1235	ENDIF
[151]	1236
	1237	!
[4648]	1238	!-- Use these mean profiles at the inflow (provided that Dirichlet conditions are used)
[3182]	1239	IF ( bc_dirichlet_l ) THEN
[767]	1240	DO j = nysg, nyng
	1241	DO k = nzb, nzt+1
	1242	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
	1243	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
[1340]	1244	w(k,j,nxlg:-1) = 0.0_wp
[767]	1245	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
[4648]	1246	IF ( humidity ) q(k,j,nxlg:-1) = mean_inflow_profiles(k,6)
	1247	IF ( passive_scalar ) s(k,j,nxlg:-1) = mean_inflow_profiles(k,7)
[767]	1248	ENDDO
	1249	ENDDO
	1250	ENDIF
	1251
[151]	1252	!
[4648]	1253	!-- Calculate the damping factors to be used at the inflow. For a turbulent inflow the
	1254	!-- turbulent fluctuations have to be limited vertically because otherwise the turbulent
	1255	!-- inflow layer will grow in time.
[1340]	1256	IF ( inflow_damping_height == 9999999.9_wp ) THEN
[767]	1257	!
[4648]	1258	!-- Default: use the inversion height calculated by the prerun; if this is zero,
	1259	!-- inflow_damping_height must be explicitly specified.
[1340]	1260	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
[767]	1261	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
	1262	ELSE
[4648]	1263	WRITE( message_string, * ) 'inflow_damping_height must be ', &
	1264	'explicitly specified because&the inversion height ', &
	1265	'calculated by the prerun is zero.'
[767]	1266	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
[292]	1267	ENDIF
[151]	1268
[767]	1269	ENDIF
	1270
[1340]	1271	IF ( inflow_damping_width == 9999999.9_wp ) THEN
[151]	1272	!
[4648]	1273	!-- Default for the transition range: one tenth of the undamped layer
[1340]	1274	inflow_damping_width = 0.1_wp * inflow_damping_height
[151]	1275
[767]	1276	ENDIF
[151]	1277
[767]	1278	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
[151]	1279
[767]	1280	DO k = nzb, nzt+1
[151]	1281
[767]	1282	IF ( zu(k) <= inflow_damping_height ) THEN
[1340]	1283	inflow_damping_factor(k) = 1.0_wp
[996]	1284	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
[4648]	1285	inflow_damping_factor(k) = 1.0_wp - &
	1286	( zu(k) - inflow_damping_height ) / inflow_damping_width
[767]	1287	ELSE
[1340]	1288	inflow_damping_factor(k) = 0.0_wp
[767]	1289	ENDIF
[151]	1290
[767]	1291	ENDDO
[151]	1292
[147]	1293	ENDIF
	1294
[152]	1295	!
[2696]	1296	!-- Inside buildings set velocities back to zero
[4648]	1297	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. topography /= 'flat' ) THEN
[359]	1298	!
[2696]	1299	!-- Inside buildings set velocities back to zero.
	1300	!-- Other scalars (pt, q, s, p, sa, ...) are ignored at present,
[359]	1301	!-- maybe revise later.
[1001]	1302	DO i = nxlg, nxrg
	1303	DO j = nysg, nyng
[2232]	1304	DO k = nzb, nzt
[4648]	1305	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 1 ) )
	1306	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 2 ) )
	1307	w(k,j,i) = MERGE( w(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 3 ) )
[2232]	1308	ENDDO
[359]	1309	ENDDO
[1001]	1310	ENDDO
[359]	1311
	1312	ENDIF
	1313
	1314	!
[4648]	1315	!-- Calculate initial temperature field and other constants used in case of a sloping surface
[1]	1316	IF ( sloping_surface ) CALL init_slope
	1317
	1318	!
[4648]	1319	!-- Initialize new time levels (only done in order to set boundary values including ghost points)
[2696]	1320	pt_p = pt; u_p = u; v_p = v; w_p = w
[1960]	1321	IF ( humidity ) THEN
[1053]	1322	q_p = q
	1323	ENDIF
[1960]	1324	IF ( passive_scalar ) s_p = s
[181]	1325	!
[4648]	1326	!-- Allthough tendency arrays are set in prognostic_equations, they have have to be predefined
	1327	!-- here because they are used (but multiplied with 0) there before they are set.
[2696]	1328	tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
[1960]	1329	IF ( humidity ) THEN
[1340]	1330	tq_m = 0.0_wp
[1053]	1331	ENDIF
[1960]	1332	IF ( passive_scalar ) ts_m = 0.0_wp
[181]	1333
[4648]	1334	IF ( debug_output ) THEN
	1335	CALL debug_message( 'initializing in case of restart / cyclic_fill', 'end' )
	1336	ENDIF
[1384]	1337
[1]	1338	ELSE
	1339	!
	1340	!-- Actually this part of the programm should not be reached
[254]	1341	message_string = 'unknown initializing problem'
	1342	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
[1]	1343	ENDIF
	1344
[151]	1345
	1346	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
[1]	1347	!
[151]	1348	!-- Initialize old timelevels needed for radiation boundary conditions
[3182]	1349	IF ( bc_radiation_l ) THEN
[151]	1350	u_m_l(:,:,:) = u(:,:,1:2)
	1351	v_m_l(:,:,:) = v(:,:,0:1)
	1352	w_m_l(:,:,:) = w(:,:,0:1)
	1353	ENDIF
[3182]	1354	IF ( bc_radiation_r ) THEN
[151]	1355	u_m_r(:,:,:) = u(:,:,nx-1:nx)
	1356	v_m_r(:,:,:) = v(:,:,nx-1:nx)
	1357	w_m_r(:,:,:) = w(:,:,nx-1:nx)
	1358	ENDIF
[3182]	1359	IF ( bc_radiation_s ) THEN
[151]	1360	u_m_s(:,:,:) = u(:,0:1,:)
	1361	v_m_s(:,:,:) = v(:,1:2,:)
	1362	w_m_s(:,:,:) = w(:,0:1,:)
	1363	ENDIF
[3182]	1364	IF ( bc_radiation_n ) THEN
[151]	1365	u_m_n(:,:,:) = u(:,ny-1:ny,:)
	1366	v_m_n(:,:,:) = v(:,ny-1:ny,:)
	1367	w_m_n(:,:,:) = w(:,ny-1:ny,:)
	1368	ENDIF
[4648]	1369
[151]	1370	ENDIF
[680]	1371
[667]	1372	!
	1373	!-- Calculate the initial volume flow at the right and north boundary
[709]	1374	IF ( conserve_volume_flow ) THEN
[151]	1375
[767]	1376	IF ( use_prescribed_profile_data ) THEN
[667]	1377
[1340]	1378	volume_flow_initial_l = 0.0_wp
	1379	volume_flow_area_l = 0.0_wp
[732]	1380
[667]	1381	IF ( nxr == nx ) THEN
	1382	DO j = nys, nyn
[2232]	1383	DO k = nzb+1, nzt
[4648]	1384	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1385	u_init(k) * dzw(k) &
	1386	* MERGE( 1.0_wp, 0.0_wp, &
	1387	BTEST( wall_flags_total_0(k,j,nxr), 1 ) &
	1388	)
[2232]	1389
[4648]	1390	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1391	* MERGE( 1.0_wp, 0.0_wp, &
	1392	BTEST( wall_flags_total_0(k,j,nxr), 1 ) &
	1393	)
[767]	1394	ENDDO
	1395	ENDDO
	1396	ENDIF
[4648]	1397
[767]	1398	IF ( nyn == ny ) THEN
	1399	DO i = nxl, nxr
[2232]	1400	DO k = nzb+1, nzt
[4648]	1401	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1402	v_init(k) * dzw(k) &
	1403	* MERGE( 1.0_wp, 0.0_wp, &
	1404	BTEST( wall_flags_total_0(k,nyn,i), 2 ) &
	1405	)
	1406	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1407	* MERGE( 1.0_wp, 0.0_wp, &
	1408	BTEST( wall_flags_total_0(k,nyn,i), 2 ) &
	1409	)
[767]	1410	ENDDO
	1411	ENDDO
	1412	ENDIF
	1413
	1414	#if defined( __parallel )
[4648]	1415	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1), 2, MPI_REAL, &
	1416	MPI_SUM, comm2d, ierr )
	1417	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), 2, MPI_REAL, MPI_SUM, &
	1418	comm2d, ierr )
[767]	1419
	1420	#else
	1421	volume_flow_initial = volume_flow_initial_l
	1422	volume_flow_area = volume_flow_area_l
[4648]	1423	#endif
[767]	1424
	1425	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1426
[1340]	1427	volume_flow_initial_l = 0.0_wp
	1428	volume_flow_area_l = 0.0_wp
[767]	1429
	1430	IF ( nxr == nx ) THEN
	1431	DO j = nys, nyn
[2232]	1432	DO k = nzb+1, nzt
[4648]	1433	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1434	hom_sum(k,1,0) * dzw(k) &
	1435	* MERGE( 1.0_wp, 0.0_wp, &
	1436	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1437	)
	1438	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1439	* MERGE( 1.0_wp, 0.0_wp, &
	1440	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1441	)
[667]	1442	ENDDO
	1443	ENDDO
	1444	ENDIF
[4648]	1445
[667]	1446	IF ( nyn == ny ) THEN
	1447	DO i = nxl, nxr
[2232]	1448	DO k = nzb+1, nzt
[4648]	1449	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1450	hom_sum(k,2,0) * dzw(k) &
	1451	* MERGE( 1.0_wp, 0.0_wp, &
	1452	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1453	)
	1454	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1455	* MERGE( 1.0_wp, 0.0_wp, &
	1456	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1457	)
[667]	1458	ENDDO
	1459	ENDDO
	1460	ENDIF
	1461
[732]	1462	#if defined( __parallel )
[4648]	1463	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1), 2, MPI_REAL, &
	1464	MPI_SUM, comm2d, ierr )
	1465	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), 2, MPI_REAL, MPI_SUM, &
	1466	comm2d, ierr )
[732]	1467
	1468	#else
	1469	volume_flow_initial = volume_flow_initial_l
	1470	volume_flow_area = volume_flow_area_l
[4648]	1471	#endif
[732]	1472
[667]	1473	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	1474
[1340]	1475	volume_flow_initial_l = 0.0_wp
	1476	volume_flow_area_l = 0.0_wp
[732]	1477
[667]	1478	IF ( nxr == nx ) THEN
	1479	DO j = nys, nyn
[2232]	1480	DO k = nzb+1, nzt
[4648]	1481	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1482	u(k,j,nx) * dzw(k) &
	1483	* MERGE( 1.0_wp, 0.0_wp, &
	1484	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1485	)
	1486	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1487	* MERGE( 1.0_wp, 0.0_wp, &
	1488	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1489	)
[667]	1490	ENDDO
	1491	ENDDO
	1492	ENDIF
[4648]	1493
[667]	1494	IF ( nyn == ny ) THEN
	1495	DO i = nxl, nxr
[2232]	1496	DO k = nzb+1, nzt
[4648]	1497	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1498	v(k,ny,i) * dzw(k) &
	1499	* MERGE( 1.0_wp, 0.0_wp, &
	1500	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1501	)
	1502	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1503	* MERGE( 1.0_wp, 0.0_wp, &
	1504	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1505	)
[667]	1506	ENDDO
	1507	ENDDO
	1508	ENDIF
	1509
	1510	#if defined( __parallel )
[4648]	1511	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1), 2, MPI_REAL, &
	1512	MPI_SUM, comm2d, ierr )
	1513	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), 2, MPI_REAL, MPI_SUM, &
	1514	comm2d, ierr )
[667]	1515
	1516	#else
[732]	1517	volume_flow_initial = volume_flow_initial_l
	1518	volume_flow_area = volume_flow_area_l
[4648]	1519	#endif
[667]	1520
[732]	1521	ENDIF
	1522
[151]	1523	!
[4648]	1524	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated from u\|v_bulk instead
[680]	1525	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
	1526	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
	1527	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
	1528	ENDIF
[667]	1529
[680]	1530	ENDIF
[2232]	1531	!
[4648]	1532	!-- In the following, surface properties can be further initialized with input from static driver
	1533	!-- file.
	1534	!-- At the moment this affects only default surfaces. For example, roughness length or sensible /
	1535	!-- latent heat fluxes can be initialized heterogeneously for default surfaces. Therefore, a generic
	1536	!-- routine from netcdf_data_input_mod is called to read a 2D array.
[4150]	1537	IF ( input_pids_static ) THEN
	1538	!
[4151]	1539	!-- Allocate memory for possible static input
	1540	ALLOCATE( tmp_2d%var(nys:nyn,nxl:nxr) )
	1541	tmp_2d%var = 0.0_wp
	1542	!
[4150]	1543	!-- Open the static input file
[4151]	1544	#if defined( __netcdf )
[4648]	1545	CALL open_read_file( TRIM( input_file_static ) // &
	1546	TRIM( coupling_char ), pids_id )
	1547
[4186]	1548	CALL inquire_num_variables( pids_id, num_var_pids )
[4150]	1549	!
	1550	!-- Allocate memory to store variable names and read them
[4186]	1551	ALLOCATE( vars_pids(1:num_var_pids) )
	1552	CALL inquire_variable_names( pids_id, vars_pids )
[4150]	1553	!
[4648]	1554	!-- Input roughness length.
[4186]	1555	IF ( check_existence( vars_pids, 'z0' ) ) THEN
[4150]	1556	!
	1557	!-- Read _FillValue attribute
[4648]	1558	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, .FALSE., 'z0' )
	1559	!
	1560	!-- Read variable
	1561	CALL get_variable( pids_id, 'z0', tmp_2d%var, nxl, nxr, nys, nyn )
	1562	!
	1563	!-- Initialize roughness length. Note, z0 will be only initialized at default-type surfaces.
	1564	!-- At natural or urban z0 is implicitly initialized by the respective parameter lists.
	1565	!-- Initialize horizontal surface elements.
	1566	CALL init_single_surface_properties( surf_def_h(0)%z0, tmp_2d%var, surf_def_h(0)%ns, &
	1567	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
	1568	!
	1569	!-- Initialize roughness also at vertical surface elements.
	1570	!-- Note, the actual 2D input arrays are only defined on the subdomain. Therefore, pass the
	1571	!-- index arrays with their respective offset values.
	1572	DO l = 0, 3
	1573	CALL init_single_surface_properties( surf_def_v(l)%z0, tmp_2d%var, surf_def_v(l)%ns, &
	1574	tmp_2d%fill, surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1575	surf_def_v(l)%j+surf_def_v(l)%joff )
[4150]	1576	ENDDO
[4648]	1577
[4150]	1578	ENDIF
	1579	!
[4648]	1580	!-- Input surface sensible heat flux.
[4514]	1581	IF ( check_existence( vars_pids, 'shf' ) ) THEN
	1582	!
	1583	!-- Read _FillValue attribute
[4648]	1584	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, .FALSE., 'shf' )
[4514]	1585	!
	1586	!-- Read variable
[4648]	1587	CALL get_variable( pids_id, 'shf', tmp_2d%var, nxl, nxr, nys, nyn )
[4514]	1588	!
[4648]	1589	!-- Initialize heat flux. Note, shf will be only initialized at default-type surfaces. At
	1590	!-- natural or urban shf is implicitly initialized by the respective parameter lists.
[4514]	1591	!-- Initialize horizontal surface elements.
[4648]	1592	CALL init_single_surface_properties( surf_def_h(0)%shf, tmp_2d%var, surf_def_h(0)%ns, &
	1593	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
[4514]	1594	!
	1595	!-- Initialize heat flux also at vertical surface elements.
[4648]	1596	!-- Note, the actual 2D input arrays are only defined on the subdomain. Therefore, pass the
	1597	!-- index arrays with their respective offset values.
[4514]	1598	DO l = 0, 3
[4648]	1599	CALL init_single_surface_properties( surf_def_v(l)%shf, tmp_2d%var, surf_def_v(l)%ns, &
	1600	tmp_2d%fill, surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1601	surf_def_v(l)%j+surf_def_v(l)%joff )
[4514]	1602	ENDDO
	1603
	1604	ENDIF
	1605	!
[4648]	1606	!-- Input surface sensible heat flux.
[4514]	1607	IF ( check_existence( vars_pids, 'qsws' ) ) THEN
	1608	!
	1609	!-- Read _FillValue attribute
	1610	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, &
	1611	.FALSE., 'qsws' )
	1612	!
	1613	!-- Read variable
	1614	CALL get_variable( pids_id, 'qsws', tmp_2d%var, &
	1615	nxl, nxr, nys, nyn )
	1616	!
[4648]	1617	!-- Initialize latent heat flux. Note, qsws will be only initialized at default-type surfaces.
	1618	!-- At natural or urban qsws is implicitly initialized by the respective parameter lists.
[4514]	1619	!-- Initialize horizontal surface elements.
[4648]	1620	CALL init_single_surface_properties( surf_def_h(0)%qsws, tmp_2d%var, surf_def_h(0)%ns, &
	1621	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
[4514]	1622	!
	1623	!-- Initialize latent heat flux also at vertical surface elements.
[4648]	1624	!-- Note, the actual 2D input arrays are only defined on the subdomain. Therefore, pass the
	1625	!-- index arrays with their respective offset values.
[4514]	1626	DO l = 0, 3
[4648]	1627	CALL init_single_surface_properties( surf_def_v(l)%qsws, tmp_2d%var, surf_def_v(l)%ns,&
	1628	tmp_2d%fill, surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1629	surf_def_v(l)%j+surf_def_v(l)%joff )
[4514]	1630	ENDDO
	1631
	1632	ENDIF
	1633	!
[4648]	1634	!-- Additional variables, can be initialized the
[4150]	1635	!-- same way.
[4514]	1636
[4150]	1637	!
[4187]	1638	!-- Finally, close the input file and deallocate temporary arrays
	1639	DEALLOCATE( vars_pids )
[4648]	1640
[4186]	1641	CALL close_input_file( pids_id )
[4151]	1642	#endif
	1643	DEALLOCATE( tmp_2d%var )
[4150]	1644	ENDIF
	1645	!
[4648]	1646	!-- Finally, if random_heatflux is set, disturb shf at horizontal surfaces. Actually, this should be
	1647	!-- done in surface_mod, where all other initializations of surface quantities are done. However,
	1648	!-- this would create a ring dependency, hence, it is done here. Maybe delete disturb_heatflux and
	1649	!-- tranfer the respective code directly into the initialization in surface_mod.
	1650	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[2232]	1651	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[4648]	1652
	1653	IF ( use_surface_fluxes .AND. constant_heatflux .AND. random_heatflux ) THEN
[2232]	1654	IF ( surf_def_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_def_h(0) )
[4671]	1655	IF ( surf_lsm_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_lsm_h(0) )
	1656	IF ( surf_usm_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_usm_h(0) )
[2232]	1657	ENDIF
	1658	ENDIF
[680]	1659
[787]	1660	!
[4648]	1661	!-- Compute total sum of grid points and the mean surface level height for each statistic region.
	1662	!-- These are mainly used for horizontal averaging of turbulence statistics.
	1663	!-- ngp_2dh: number of grid points of a horizontal cross section through the respective statistic
	1664	!-- region
[3747]	1665	!-- ngp_3d: number of grid points of the respective statistic region
[2696]	1666	ngp_2dh_outer_l = 0
	1667	ngp_2dh_outer = 0
	1668	ngp_2dh_s_inner_l = 0
	1669	ngp_2dh_s_inner = 0
	1670	ngp_2dh_l = 0
	1671	ngp_2dh = 0
	1672	ngp_3d_inner_l = 0.0_wp
	1673	ngp_3d_inner = 0
	1674	ngp_3d = 0
	1675	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
	1676
	1677	mean_surface_level_height = 0.0_wp
	1678	mean_surface_level_height_l = 0.0_wp
	1679	!
	1680	!-- To do: New concept for these non-topography grid points!
	1681	DO sr = 0, statistic_regions
	1682	DO i = nxl, nxr
	1683	DO j = nys, nyn
	1684	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
	1685	!
	1686	!-- All xy-grid points
	1687	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1688	!
[4648]	1689	!-- Determine mean surface-level height. In case of downward-facing walls are present,
	1690	!-- more than one surface level exist.
	1691	!-- In this case, use the lowest surface-level height.
	1692	IF ( surf_def_h(0)%start_index(j,i) <= surf_def_h(0)%end_index(j,i) ) THEN
[2696]	1693	m = surf_def_h(0)%start_index(j,i)
	1694	k = surf_def_h(0)%k(m)
[4648]	1695	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) + zw(k-1)
[2696]	1696	ENDIF
[4671]	1697	IF ( surf_lsm_h(0)%start_index(j,i) <= surf_lsm_h(0)%end_index(j,i) ) THEN
	1698	m = surf_lsm_h(0)%start_index(j,i)
	1699	k = surf_lsm_h(0)%k(m)
[4648]	1700	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) + zw(k-1)
[2696]	1701	ENDIF
[4671]	1702	IF ( surf_usm_h(0)%start_index(j,i) <= surf_usm_h(0)%end_index(j,i) ) THEN
	1703	m = surf_usm_h(0)%start_index(j,i)
	1704	k = surf_usm_h(0)%k(m)
[4648]	1705	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) + zw(k-1)
[2696]	1706	ENDIF
	1707
	1708	k_surf = k - 1
	1709
	1710	DO k = nzb, nzt+1
	1711	!
	1712	!-- xy-grid points above topography
[4648]	1713	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + &
	1714	MERGE( 1, 0, BTEST( wall_flags_total_0(k,j,i), 24 ) )
[2696]	1715
[4648]	1716	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + &
	1717	MERGE( 1, 0, BTEST( wall_flags_total_0(k,j,i), 22 ) )
[2696]	1718
	1719	ENDDO
	1720	!
	1721	!-- All grid points of the total domain above topography
	1722	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + ( nz - k_surf + 2 )
	1723
	1724
	1725
	1726	ENDIF
	1727	ENDDO
	1728	ENDDO
	1729	ENDDO
[3747]	1730
[2696]	1731	sr = statistic_regions + 1
	1732	#if defined( __parallel )
	1733	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1734	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
	1735	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1736	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, MPI_INTEGER, MPI_SUM, &
[2696]	1737	comm2d, ierr )
	1738	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1739	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), (nz+2)*sr, MPI_INTEGER, &
	1740	MPI_SUM, comm2d, ierr )
[2696]	1741	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1742	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, MPI_SUM, comm2d, &
	1743	ierr )
[2696]	1744	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
	1745	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1746	CALL MPI_ALLREDUCE( mean_surface_level_height_l(0), mean_surface_level_height(0), sr, MPI_REAL,&
[2696]	1747	MPI_SUM, comm2d, ierr )
	1748	mean_surface_level_height = mean_surface_level_height / REAL( ngp_2dh )
	1749	#else
	1750	ngp_2dh = ngp_2dh_l
	1751	ngp_2dh_outer = ngp_2dh_outer_l
	1752	ngp_2dh_s_inner = ngp_2dh_s_inner_l
	1753	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
	1754	mean_surface_level_height = mean_surface_level_height_l / REAL( ngp_2dh_l )
	1755	#endif
	1756
[4648]	1757	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
[2696]	1758	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
	1759
	1760	!
[4648]	1761	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics, buoyancy, etc. A
	1762	!-- zero value will occur for cases where all grid points of the respective subdomain lie below the
	1763	!-- surface topography
	1764	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
	1765	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), ngp_3d_inner(:) )
	1766	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
[2696]	1767
[4648]	1768	DEALLOCATE( mean_surface_level_height_l, ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, &
	1769	ngp_3d_inner_tmp )
[4548]	1770
[2696]	1771	!
[4648]	1772	!-- Initializae 3D offline nesting in COSMO model and read data from
[3347]	1773	!-- external NetCDF file.
	1774	IF ( nesting_offline ) CALL nesting_offl_init
	1775	!
[787]	1776	!-- Initialize quantities for special advections schemes
	1777	CALL init_advec
[680]	1778
[667]	1779	!
[680]	1780	!-- Impose random perturbation on the horizontal velocity field and then
	1781	!-- remove the divergences from the velocity field at the initial stage
[4648]	1782	IF ( create_disturbances .AND. disturbance_energy_limit /= 0.0_wp .AND. &
	1783	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[680]	1784	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
	1785
[4648]	1786	IF ( debug_output ) THEN
	1787	CALL debug_message( 'creating disturbances + applying pressure solver', 'start' )
	1788	ENDIF
[3849]	1789	!
	1790	!-- Needed for both disturb_field and pres
	1791	!$ACC DATA &
	1792	!$ACC CREATE(tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1793	!$ACC COPY(u(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1794	!$ACC COPY(v(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
	1795
[2232]	1796	CALL disturb_field( 'u', tend, u )
	1797	CALL disturb_field( 'v', tend, v )
[1384]	1798
[3849]	1799	!$ACC DATA &
	1800	!$ACC CREATE(d(nzb+1:nzt,nys:nyn,nxl:nxr)) &
	1801	!$ACC COPY(w(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1802	!$ACC COPY(p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1803	!$ACC COPYIN(rho_air(nzb:nzt+1), rho_air_zw(nzb:nzt+1)) &
	1804	!$ACC COPYIN(ddzu(1:nzt+1), ddzw(1:nzt+1)) &
[4346]	1805	!$ACC COPYIN(wall_flags_total_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
[3849]	1806	!$ACC COPYIN(bc_h(0:1)) &
	1807	!$ACC COPYIN(bc_h(0)%i(1:bc_h(0)%ns)) &
	1808	!$ACC COPYIN(bc_h(0)%j(1:bc_h(0)%ns)) &
	1809	!$ACC COPYIN(bc_h(0)%k(1:bc_h(0)%ns)) &
	1810	!$ACC COPYIN(bc_h(1)%i(1:bc_h(1)%ns)) &
	1811	!$ACC COPYIN(bc_h(1)%j(1:bc_h(1)%ns)) &
	1812	!$ACC COPYIN(bc_h(1)%k(1:bc_h(1)%ns))
	1813
[680]	1814	n_sor = nsor_ini
	1815	CALL pres
	1816	n_sor = nsor
[1384]	1817
[3849]	1818	!$ACC END DATA
	1819	!$ACC END DATA
	1820
[4648]	1821	IF ( debug_output ) THEN
	1822	CALL debug_message( 'creating disturbances + applying pressure solver', 'end' )
	1823	ENDIF
[3987]	1824
[680]	1825	ENDIF
	1826
[3294]	1827	IF ( .NOT. ocean_mode ) THEN
[3274]	1828
	1829	ALLOCATE( hyp(nzb:nzt+1) )
	1830	ALLOCATE( d_exner(nzb:nzt+1) )
	1831	ALLOCATE( exner(nzb:nzt+1) )
	1832	ALLOCATE( hyrho(nzb:nzt+1) )
[1849]	1833	!
[3274]	1834	!-- Check temperature in case of too large domain height
	1835	DO k = nzb, nzt+1
[4648]	1836	IF ( ( pt_surface * exner_function( surface_pressure * 100.0_wp ) - g/c_p * zu(k) ) &
	1837	< 0.0_wp ) THEN
	1838	WRITE( message_string, * ) 'absolute temperature < 0.0 at zu(', k, ') = ', zu(k)
[3685]	1839	CALL message( 'init_3d_model', 'PA0142', 1, 2, 0, 6, 0 )
[3274]	1840	ENDIF
	1841	ENDDO
	1842
	1843	!
	1844	!-- Calculate vertical profile of the hydrostatic pressure (hyp)
[4648]	1845	hyp = barometric_formula( zu, pt_surface * exner_function( surface_pressure * 100.0_wp ),&
	1846	surface_pressure * 100.0_wp )
	1847	d_exner = exner_function_invers( hyp )
	1848	exner = 1.0_wp / exner_function_invers( hyp )
	1849	hyrho = ideal_gas_law_rho_pt( hyp, pt_init )
[3274]	1850	!
	1851	!-- Compute reference density
[4648]	1852	rho_surface = ideal_gas_law_rho( surface_pressure * 100.0_wp, &
	1853	pt_surface * exner_function( surface_pressure * 100.0_wp ) )
[3274]	1854
[96]	1855	ENDIF
[1]	1856
	1857	!
	1858	!-- If required, initialize particles
[3159]	1859	IF ( agents_active ) CALL mas_init
	1860	!
[3937]	1861	!-- Initialization of synthetic turbulence generator
	1862	IF ( use_syn_turb_gen ) CALL stg_init
[2696]	1863	!
[3685]	1864	!-- Initializing actions for all other modules
	1865	CALL module_interface_init
[2696]	1866	!
[4648]	1867	!-- Initialize surface layer (done after LSM as roughness length are required for initialization
[3685]	1868	IF ( constant_flux_layer ) CALL init_surface_layer_fluxes
[2977]	1869	!
[3421]	1870	!-- Initialize surface data output
[3685]	1871	IF ( surface_output ) CALL surface_data_output_init
[3472]	1872	!
[4648]	1873	!-- Initialize the ws-scheme.
	1874	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
[3711]	1875	!
	1876	!-- Perform post-initializing checks for all other modules
	1877	CALL module_interface_init_checks
[1]	1878
	1879	!
[4648]	1880	!-- Initialize surface forcing corresponding to large-scale forcing. Therein,
[4548]	1881	!-- initialize heat-fluxes, etc. via datatype. Revise it later!
[4648]	1882	IF ( large_scale_forcing .AND. lsf_surf ) THEN
[4548]	1883	IF ( use_surface_fluxes .AND. constant_heatflux ) THEN
[4648]	1884	CALL ls_forcing_surf( simulated_time )
[4548]	1885	ENDIF
	1886	ENDIF
	1887	!
[4648]	1888	!-- Setting weighting factors for calculation of perturbation pressure and turbulent quantities from
	1889	!-- the RK substeps.
	1890	IF ( TRIM( timestep_scheme ) == 'runge-kutta-3' ) THEN ! for RK3-method
[709]	1891
[1322]	1892	weight_substep(1) = 1._wp/6._wp
	1893	weight_substep(2) = 3._wp/10._wp
	1894	weight_substep(3) = 8._wp/15._wp
[709]	1895
[1322]	1896	weight_pres(1) = 1._wp/3._wp
	1897	weight_pres(2) = 5._wp/12._wp
	1898	weight_pres(3) = 1._wp/4._wp
[709]	1899
[4648]	1900	ELSEIF ( TRIM( timestep_scheme ) == 'runge-kutta-2' ) THEN ! for RK2-method
[709]	1901
[1322]	1902	weight_substep(1) = 1._wp/2._wp
	1903	weight_substep(2) = 1._wp/2._wp
[4648]	1904
[1322]	1905	weight_pres(1) = 1._wp/2._wp
[4648]	1906	weight_pres(2) = 1._wp/2._wp
[709]	1907
[1001]	1908	ELSE ! for Euler-method
[709]	1909
[4648]	1910	weight_substep(1) = 1.0_wp
	1911	weight_pres(1) = 1.0_wp
[709]	1912
[673]	1913	ENDIF
	1914
	1915	!
[1]	1916	!-- Initialize Rayleigh damping factors
[1340]	1917	rdf = 0.0_wp
	1918	rdf_sc = 0.0_wp
	1919	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
[3294]	1920
	1921	IF ( .NOT. ocean_mode ) THEN
[108]	1922	DO k = nzb+1, nzt
	1923	IF ( zu(k) >= rayleigh_damping_height ) THEN
[4648]	1924	rdf(k) = rayleigh_damping_factor * &
	1925	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
	1926	/ ( zu(nzt) - rayleigh_damping_height ) ) &
	1927	)**2
[108]	1928	ENDIF
	1929	ENDDO
	1930	ELSE
[3294]	1931	!
[4648]	1932	!-- In ocean mode, rayleigh damping is applied in the lower part of the model domain
[108]	1933	DO k = nzt, nzb+1, -1
	1934	IF ( zu(k) <= rayleigh_damping_height ) THEN
[4648]	1935	rdf(k) = rayleigh_damping_factor * &
	1936	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
	1937	/ ( rayleigh_damping_height - zu(nzb+1) ) ) &
	1938	)**2
[108]	1939	ENDIF
	1940	ENDDO
	1941	ENDIF
[3294]	1942
[1]	1943	ENDIF
[785]	1944	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
[1]	1945
	1946	!
[4648]	1947	!-- Initialize the starting level and the vertical smoothing factor used for the external pressure
	1948	!-- gradient
[1340]	1949	dp_smooth_factor = 1.0_wp
[240]	1950	IF ( dp_external ) THEN
	1951	!
[4648]	1952	!-- Set the starting level dp_level_ind_b only if it has not been set before (e.g. in init_grid).
[240]	1953	IF ( dp_level_ind_b == 0 ) THEN
	1954	ind_array = MINLOC( ABS( dp_level_b - zu ) )
[4648]	1955	dp_level_ind_b = ind_array(1) - 1 + nzb
[240]	1956	! MINLOC uses lower array bound 1
	1957	ENDIF
	1958	IF ( dp_smooth ) THEN
[1340]	1959	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
[240]	1960	DO k = dp_level_ind_b+1, nzt
[4648]	1961	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
	1962	( REAL( k - dp_level_ind_b, KIND=wp ) / &
	1963	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
[240]	1964	ENDDO
	1965	ENDIF
	1966	ENDIF
	1967
	1968	!
[4648]	1969	!-- Initialize damping zone for the potential temperature in case of non-cyclic lateral boundaries.
	1970	!-- The damping zone has the maximum value at the inflow boundary and decreases to zero at
	1971	!-- pt_damping_width.
[1340]	1972	ptdf_x = 0.0_wp
	1973	ptdf_y = 0.0_wp
[1159]	1974	IF ( bc_lr_dirrad ) THEN
[996]	1975	DO i = nxl, nxr
[978]	1976	IF ( ( i * dx ) < pt_damping_width ) THEN
[4648]	1977	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
	1978	REAL( pt_damping_width - i * dx, KIND=wp ) / &
	1979	REAL( pt_damping_width, KIND=wp ) ) )**2
	1980	ENDIF
[73]	1981	ENDDO
[1159]	1982	ELSEIF ( bc_lr_raddir ) THEN
[996]	1983	DO i = nxl, nxr
[978]	1984	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
[4648]	1985	ptdf_x(i) = pt_damping_factor * SIN( pi * 0.5_wp * &
	1986	( ( i - nx ) * dx + pt_damping_width ) / &
	1987	REAL( pt_damping_width, KIND=wp ) )**2
[73]	1988	ENDIF
[4648]	1989	ENDDO
[1159]	1990	ELSEIF ( bc_ns_dirrad ) THEN
[996]	1991	DO j = nys, nyn
[978]	1992	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
[4648]	1993	ptdf_y(j) = pt_damping_factor * SIN( pi * 0.5_wp * &
	1994	( ( j - ny ) * dy + pt_damping_width ) / &
	1995	REAL( pt_damping_width, KIND=wp ) )**2
[1]	1996	ENDIF
[4648]	1997	ENDDO
[1159]	1998	ELSEIF ( bc_ns_raddir ) THEN
[996]	1999	DO j = nys, nyn
[978]	2000	IF ( ( j * dy ) < pt_damping_width ) THEN
[4648]	2001	ptdf_y(j) = pt_damping_factor * SIN( pi * 0.5_wp * &
	2002	( pt_damping_width - j * dy ) / &
	2003	REAL( pt_damping_width, KIND=wp ) )**2
[1]	2004	ENDIF
[73]	2005	ENDDO
[1]	2006	ENDIF
[51]	2007
[1]	2008	!
[4648]	2009	!-- Input binary data file is not needed anymore. This line must be placed after call of user_init!
[1]	2010	CALL close_file( 13 )
[2934]	2011	!
[4648]	2012	!-- In case of nesting, put an barrier to assure that all parent and child domains finished
	2013	!-- initialization.
[2934]	2014	#if defined( __parallel )
	2015	IF ( nested_run ) CALL MPI_BARRIER( MPI_COMM_WORLD, ierr )
	2016	#endif
[1]	2017
[2934]	2018
[3987]	2019	CALL location_message( 'model initialization', 'finished' )
[1]	2020
	2021	END SUBROUTINE init_3d_model

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source: palm/trunk/SOURCE/init_3d_model.f90 @ 4784

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