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init_3d_model.f90 @ 4847

Last change on this file since 4847 was 4845, checked in by raasch, 4 years ago

maximum phase velocities are alwasy used for radiation boundary conditions, parameter use_cmax removed

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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
/palm/branches/mosaik_M2/init_3d_model.f90	2360-3471
/palm/branches/palm4u/SOURCE/init_3d_model.f90	2540-2692

File size: 84.3 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 4845 2021-01-18 11:15:37Z raasch $
[4845]	26	! removed allocation and initialization of arrays required for radiation boundary conditions
	27	!
	28	! 4828 2021-01-05 11:21:41Z Giersch
[4791]	29	! Add possibility to initialize surface flux of passive scalar via static driver
	30	!
	31	! 4783 2020-11-13 13:58:45Z raasch
[4783]	32	! bugfix for reading restart data with MPI-I/O (does not work with blockwise I/O)
	33	!
	34	! 4680 2020-09-16 10:20:34Z gronemeier
[4680]	35	! Add option to fix date or time of the simulation
	36	!
	37	! 4671 2020-09-09 20:27:58Z pavelkrc
[4671]	38	! Implementation of downward facing USM and LSM surfaces
	39	!
	40	! 4648 2020-08-25 07:52:08Z raasch
[4648]	41	! file re-formatted to follow the PALM coding standard
	42	!
	43	! 4548 2020-05-28 19:36:45Z suehring
[4548]	44	! Bugfix, move call for lsf_forcing_surf after lsf_init is called
[4648]	45	!
[4548]	46	! 4514 2020-04-30 16:29:59Z suehring
[4648]	47	! Add possibility to initialize surface sensible and latent heat fluxes via a static driver.
	48	!
[4514]	49	! 4493 2020-04-10 09:49:43Z pavelkrc
[4648]	50	! Overwrite u_init, v_init, pt_init, q_init and s_init with hom for all cyclic_fill-cases, not only
	51	! for turbulent_inflow = .TRUE.
	52	!
[4365]	53	! 4360 2020-01-07 11:25:50Z suehring
[4648]	54	! Introduction of wall_flags_total_0, which currently sets bits based on static topography
	55	! information used in wall_flags_static_0
	56	!
[4346]	57	! 4329 2019-12-10 15:46:36Z motisi
[4329]	58	! Renamed wall_flags_0 to wall_flags_static_0
[4648]	59	!
[4329]	60	! 4286 2019-10-30 16:01:14Z resler
[4227]	61	! implement new palm_date_time_mod
[4648]	62	!
[4227]	63	! 4223 2019-09-10 09:20:47Z gronemeier
[4648]	64	! Deallocate temporary string array since it may be re-used to read different input data in other
	65	! modules
	66	!
[4187]	67	! 4186 2019-08-23 16:06:14Z suehring
[4648]	68	! Design change, use variables defined in netcdf_data_input_mod to read netcd variables rather than
	69	! define local ones.
	70	!
[4186]	71	! 4185 2019-08-23 13:49:38Z oliver.maas
[4185]	72	! For initializing_actions = ' cyclic_fill':
[4648]	73	! Overwrite u_init, v_init, pt_init, q_init and s_init with the (temporally) and horizontally
	74	! averaged vertical profiles from the end of the prerun, because these profiles shall be used as the
	75	! basic state for the rayleigh damping and the pt_damping.
	76	!
[4185]	77	! 4182 2019-08-22 15:20:23Z scharf
[4182]	78	! Corrected "Former revisions" section
[4648]	79	!
[4182]	80	! 4168 2019-08-16 13:50:17Z suehring
[4168]	81	! Replace function get_topography_top_index by topo_top_ind
[4648]	82	!
[4168]	83	! 4151 2019-08-09 08:24:30Z suehring
[4151]	84	! Add netcdf directive around input calls (fix for last commit)
[4648]	85	!
[4151]	86	! 4150 2019-08-08 20:00:47Z suehring
[4648]	87	! Input of additional surface variables independent on land- or urban-surface model
	88	!
[4150]	89	! 4131 2019-08-02 11:06:18Z monakurppa
[4131]	90	! Allocate sums and sums_l to allow profile output for salsa variables.
[4648]	91	!
[4131]	92	! 4130 2019-08-01 13:04:13Z suehring
[4648]	93	! Effectively reduce 3D initialization to 1D initial profiles. This is because 3D initialization
	94	! produces structures in the w-component that are correlated with the processor grid for some
	95	! unknown reason
	96	!
[4130]	97	! 4090 2019-07-11 15:06:47Z Giersch
[4090]	98	! Unused variables removed
[4648]	99	!
[4090]	100	! 4088 2019-07-11 13:57:56Z Giersch
[4088]	101	! Pressure and density profile calculations revised using basic functions
[4648]	102	!
[4088]	103	! 4048 2019-06-21 21:00:21Z knoop
[4028]	104	! Further modularization of particle code components
[4648]	105	!
[4028]	106	! 4017 2019-06-06 12:16:46Z schwenkel
[4648]	107	! Convert most location messages to debug messages to reduce output in job logfile to a minimum
	108	!
[3939]	109	! unused variable removed
[4648]	110	!
[3939]	111	! 3937 2019-04-29 15:09:07Z suehring
[4648]	112	! Move initialization of synthetic turbulence generator behind initialization of offline nesting.
	113	! Remove call for stg_adjust, as this is now already done in stg_init.
	114	!
[3937]	115	! 3900 2019-04-16 15:17:43Z suehring
[3900]	116	! Fix problem with LOD = 2 initialization
[4648]	117	!
[3900]	118	! 3885 2019-04-11 11:29:34Z kanani
[4648]	119	! Changes related to global restructuring of location messages and introduction of additional debug
	120	! messages
	121	!
[3885]	122	! 3849 2019-04-01 16:35:16Z knoop
[3747]	123	! Move initialization of rmask before initializing user_init_arrays
[4648]	124	!
[3747]	125	! 3711 2019-01-31 13:44:26Z knoop
[3711]	126	! Introduced module_interface_init_checks for post-init checks in modules
[4648]	127	!
[3711]	128	! 3700 2019-01-26 17:03:42Z knoop
[3685]	129	! Some interface calls moved to module_interface + cleanup
[4648]	130	!
[3685]	131	! 3648 2019-01-02 16:35:46Z suehring
[3648]	132	! Rename subroutines for surface-data output
[3569]	133	!
[4182]	134	! Revision 1.1 1998/03/09 16:22:22 raasch
	135	! Initial revision
	136	!
	137	!
[1]	138	! Description:
	139	! ------------
[1682]	140	!> Allocation of arrays and initialization of the 3D model via
	141	!> a) pre-run the 1D model
	142	!> or
	143	!> b) pre-set constant linear profiles
	144	!> or
	145	!> c) read values of a previous run
[4648]	146	!--------------------------------------------------------------------------------------------------!
[1682]	147	SUBROUTINE init_3d_model
[1]	148
[3298]	149
[667]	150	USE advec_ws
[1320]	151
[1]	152	USE arrays_3d
[1849]	153
[4648]	154	USE basic_constants_and_equations_mod, &
	155	ONLY: barometric_formula, c_p, exner_function, exner_function_invers, g, &
	156	ideal_gas_law_rho, ideal_gas_law_rho_pt, l_v, pi
[3274]	157
[4648]	158	USE bulk_cloud_model_mod, &
[3685]	159	ONLY: bulk_cloud_model
[3274]	160
[4648]	161	USE chem_modules, &
[3685]	162	ONLY: max_pr_cs ! ToDo: this dependency needs to be removed cause it is ugly #new_dom
[3298]	163
[1]	164	USE control_parameters
[3298]	165
[4648]	166	USE grid_variables, &
[2037]	167	ONLY: dx, dy, ddx2_mg, ddy2_mg
[2817]	168
[1]	169	USE indices
[3469]	170
[1320]	171	USE kinds
[4648]	172
	173	USE lsf_nudging_mod, &
[3685]	174	ONLY: ls_forcing_surf
[1849]	175
[4648]	176	USE model_1d_mod, &
[3241]	177	ONLY: init_1d_model, l1d, u1d, v1d
[2338]	178
[4648]	179	USE module_interface, &
	180	ONLY: module_interface_init_arrays, &
	181	module_interface_init, &
[3711]	182	module_interface_init_checks
[3685]	183
[4648]	184	USE multi_agent_system_mod, &
[3159]	185	ONLY: agents_active, mas_init
	186
[4648]	187	USE netcdf_interface, &
[3700]	188	ONLY: dots_max
[2696]	189
[4648]	190	USE netcdf_data_input_mod, &
	191	ONLY: char_fill, &
	192	check_existence, &
	193	close_input_file, &
	194	get_attribute, &
	195	get_variable, &
	196	init_3d, &
	197	input_pids_static, &
	198	inquire_num_variables, &
	199	inquire_variable_names, &
	200	input_file_static, &
	201	netcdf_data_input_init_3d, &
	202	num_var_pids, &
	203	open_read_file, &
	204	pids_id, &
	205	real_2d, &
[4186]	206	vars_pids
[4648]	207
	208	USE nesting_offl_mod, &
[3347]	209	ONLY: nesting_offl_init
[3294]	210
[4648]	211	USE palm_date_time_mod, &
[4680]	212	ONLY: init_date_time
[4227]	213
[1]	214	USE pegrid
[3298]	215
[3524]	216	#if defined( __parallel )
[4648]	217	USE pmc_interface, &
[2934]	218	ONLY: nested_run
[3524]	219	#endif
[2934]	220
[4648]	221	USE random_function_mod
[3685]	222
[4648]	223	USE random_generator_parallel, &
[2172]	224	ONLY: init_parallel_random_generator
[3685]	225
[4648]	226	USE read_restart_data_mod, &
	227	ONLY: rrd_local, rrd_read_parts_of_global
[3685]	228
[4648]	229	USE statistics, &
	230	ONLY: hom, hom_sum, mean_surface_level_height, pr_palm, rmask, statistic_regions, sums, &
	231	sums_divnew_l, sums_divold_l, sums_l, sums_l_l, sums_wsts_bc_l, ts_value, &
[1833]	232	weight_pres, weight_substep
[2259]	233
[4648]	234	USE synthetic_turbulence_generator_mod, &
[3939]	235	ONLY: stg_init, use_syn_turb_gen
[3685]	236
[4648]	237	USE surface_layer_fluxes_mod, &
[1691]	238	ONLY: init_surface_layer_fluxes
[2232]	239
[4648]	240	USE surface_mod, &
	241	ONLY : init_single_surface_properties, &
	242	init_surface_arrays, &
	243	init_surfaces, &
	244	surf_def_h, &
	245	surf_def_v, &
	246	surf_lsm_h, &
[4168]	247	surf_usm_h
[3685]	248
[3849]	249	#if defined( _OPENACC )
[4648]	250	USE surface_mod, &
[3849]	251	ONLY : bc_h
	252	#endif
	253
[4648]	254	USE surface_data_output_mod, &
[3648]	255	ONLY: surface_data_output_init
[3685]	256
[2007]	257	USE transpose_indices
[1]	258
[4648]	259
[1]	260	IMPLICIT NONE
[4648]	261
[4150]	262	INTEGER(iwp) :: i !< grid index in x direction
	263	INTEGER(iwp) :: ind_array(1) !< dummy used to determine start index for external pressure forcing
	264	INTEGER(iwp) :: j !< grid index in y direction
	265	INTEGER(iwp) :: k !< grid index in z direction
	266	INTEGER(iwp) :: k_surf !< surface level index
[4648]	267	INTEGER(iwp) :: l !< running index over surface orientation
	268	INTEGER(iwp) :: m !< index of surface element in surface data type
[4150]	269	INTEGER(iwp) :: nz_u_shift !< topography-top index on u-grid, used to vertically shift initial profiles
	270	INTEGER(iwp) :: nz_v_shift !< topography-top index on v-grid, used to vertically shift initial profiles
	271	INTEGER(iwp) :: nz_w_shift !< topography-top index on w-grid, used to vertically shift initial profiles
	272	INTEGER(iwp) :: nz_s_shift !< topography-top index on scalar-grid, used to vertically shift initial profiles
	273	INTEGER(iwp) :: nz_u_shift_l !< topography-top index on u-grid, used to vertically shift initial profiles
	274	INTEGER(iwp) :: nz_v_shift_l !< topography-top index on v-grid, used to vertically shift initial profiles
	275	INTEGER(iwp) :: nz_w_shift_l !< topography-top index on w-grid, used to vertically shift initial profiles
	276	INTEGER(iwp) :: nz_s_shift_l !< topography-top index on scalar-grid, used to vertically shift initial profiles
	277	INTEGER(iwp) :: nzt_l !< index of top PE boundary for multigrid level
	278	INTEGER(iwp) :: sr !< index of statistic region
[1]	279
[4648]	280	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !< toal number of horizontal grid points in statistical region on
	281	!< subdomain
[1]	282
[4648]	283	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !< number of horizontal non-wall bounded grid points on
	284	!< subdomain
	285	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !< number of horizontal non-topography grid points on
	286	!< subdomain
[1]	287
[2037]	288	REAL(wp) :: dx_l !< grid spacing along x on different multigrid level
	289	REAL(wp) :: dy_l !< grid spacing along y on different multigrid level
	290
[4648]	291	REAL(wp), DIMENSION(:), ALLOCATABLE :: init_l !< dummy array used for averaging 3D data to obtain
	292	!< inital profiles
	293	REAL(wp), DIMENSION(:), ALLOCATABLE :: mean_surface_level_height_l !< mean surface level height on subdomain
	294	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !< total number of non-topography grid points on subdomain
	295	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !< total number of non-topography grid points
	296	REAL(wp), DIMENSION(:), ALLOCATABLE :: p_hydrostatic !< hydrostatic pressure
	297
[3547]	298	REAL(wp), DIMENSION(1:3) :: volume_flow_area_l !< area of lateral and top model domain surface on local subdomain
	299	REAL(wp), DIMENSION(1:3) :: volume_flow_initial_l !< initial volume flow into model domain
[1]	300
[4648]	301	TYPE(real_2d) :: tmp_2d !< temporary variable to input additional surface-data from static file
[1]	302
[3987]	303	CALL location_message( 'model initialization', 'start' )
[4227]	304	!
	305	!-- Set reference date-time
[4680]	306	CALL init_date_time( date_time_str=origin_date_time, &
	307	use_fixed_date=use_fixed_date, &
	308	use_fixed_time=use_fixed_time )
[3987]	309
	310	IF ( debug_output ) CALL debug_message( 'allocating arrays', 'start' )
[1]	311	!
	312	!-- Allocate arrays
[4648]	313	ALLOCATE( mean_surface_level_height(0:statistic_regions), &
	314	mean_surface_level_height_l(0:statistic_regions), &
	315	ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
	316	ngp_3d(0:statistic_regions), &
	317	ngp_3d_inner(0:statistic_regions), &
	318	ngp_3d_inner_l(0:statistic_regions), &
	319	ngp_3d_inner_tmp(0:statistic_regions), &
	320	sums_divnew_l(0:statistic_regions), &
[1]	321	sums_divold_l(0:statistic_regions) )
[1195]	322	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
[4648]	323	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
	324	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
	325	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
	326	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
	327	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
	328	sums(nzb:nzt+1,pr_palm+max_pr_user+max_pr_cs+max_pr_salsa), &
[4131]	329	sums_l(nzb:nzt+1,pr_palm+max_pr_user+max_pr_cs+max_pr_salsa,0:threads_per_task-1), &
[4648]	330	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
[3700]	331	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions) )
	332	ALLOCATE( ts_value(dots_max,0:statistic_regions) )
[978]	333	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
[1]	334
[4648]	335	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
	336	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1010]	337	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	338
[4648]	339	ALLOCATE( pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	340	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	341	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	342	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	343	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	344	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	345	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	346	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	347	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	348	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	349	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1788]	350	IF ( .NOT. neutral ) THEN
[1032]	351	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	352	ENDIF
[673]	353	!
[3747]	354	!-- Pre-set masks for regional statistics. Default is the total model domain.
[4648]	355	!-- Ghost points are excluded because counting values at the ghost boundaries would bias the
	356	!-- statistics.
[3747]	357	rmask = 1.0_wp
	358	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
	359	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
	360	!
[4648]	361	!-- Following array is required for perturbation pressure within the iterative pressure solvers. For
	362	!-- the multistep schemes (Runge-Kutta), array p holds the weighted average of the substeps and
	363	!-- cannot be used in the Poisson solver.
[707]	364	IF ( psolver == 'sor' ) THEN
	365	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1575]	366	ELSEIF ( psolver(1:9) == 'multigrid' ) THEN
[707]	367	!
	368	!-- For performance reasons, multigrid is using one ghost layer only
	369	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[673]	370	ENDIF
[1]	371
[1111]	372	!
	373	!-- Array for storing constant coeffficients of the tridiagonal solver
	374	IF ( psolver == 'poisfft' ) THEN
[1212]	375	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
[1111]	376	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
	377	ENDIF
	378
[1960]	379	IF ( humidity ) THEN
[1]	380	!
[1960]	381	!-- 3D-humidity
[4648]	382	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	383	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	384	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	385	vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	386	ENDIF
	387
[1960]	388	IF ( passive_scalar ) THEN
[1]	389
[1960]	390	!
	391	!-- 3D scalar arrays
[4648]	392	ALLOCATE( s_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	393	s_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1960]	394	s_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[3636]	395
[1960]	396	ENDIF
	397
[1]	398	!
[4648]	399	!-- Allocate and set 1d-profiles for Stokes drift velocity. It may be set to non-zero values later
	400	!-- in ocean_init.
	401	ALLOCATE( u_stokes_zu(nzb:nzt+1), u_stokes_zw(nzb:nzt+1), &
[3302]	402	v_stokes_zu(nzb:nzt+1), v_stokes_zw(nzb:nzt+1) )
	403	u_stokes_zu(:) = 0.0_wp
	404	u_stokes_zw(:) = 0.0_wp
	405	v_stokes_zu(:) = 0.0_wp
	406	v_stokes_zw(:) = 0.0_wp
	407
	408	!
[2037]	409	!-- Allocation of anelastic and Boussinesq approximation specific arrays
	410	ALLOCATE( p_hydrostatic(nzb:nzt+1) )
	411	ALLOCATE( rho_air(nzb:nzt+1) )
	412	ALLOCATE( rho_air_zw(nzb:nzt+1) )
	413	ALLOCATE( drho_air(nzb:nzt+1) )
	414	ALLOCATE( drho_air_zw(nzb:nzt+1) )
	415	!
[4648]	416	!-- Density profile calculation for anelastic and Boussinesq approximation.
	417	!-- In case of a Boussinesq approximation, a constant density is calculated mainly for output
	418	!-- purposes. This density does not need to be considered in the model's system of equations.
[4088]	419	IF ( TRIM( approximation ) == 'anelastic' ) THEN
[2037]	420	DO k = nzb, nzt+1
[4648]	421	p_hydrostatic(k) = barometric_formula(zu(k), pt_surface * &
	422	exner_function(surface_pressure * 100.0_wp), &
	423	surface_pressure * 100.0_wp)
	424
[4088]	425	rho_air(k) = ideal_gas_law_rho_pt(p_hydrostatic(k), pt_init(k))
[2037]	426	ENDDO
[4648]	427
[2037]	428	DO k = nzb, nzt
	429	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
	430	ENDDO
[4648]	431
	432	rho_air_zw(nzt+1) = rho_air_zw(nzt) + 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
	433
[2037]	434	ELSE
[2252]	435	DO k = nzb, nzt+1
[4648]	436	p_hydrostatic(k) = barometric_formula(zu(nzb), pt_surface * &
	437	exner_function(surface_pressure * 100.0_wp), &
	438	surface_pressure * 100.0_wp)
[4088]	439
	440	rho_air(k) = ideal_gas_law_rho_pt(p_hydrostatic(k), pt_init(nzb))
[2252]	441	ENDDO
[4648]	442
[2252]	443	DO k = nzb, nzt
	444	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
	445	ENDDO
[4648]	446
	447	rho_air_zw(nzt+1) = rho_air_zw(nzt) + 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
	448
[2037]	449	ENDIF
[2696]	450	!
[4648]	451	!-- Compute the inverse density array in order to avoid expencive divisions
[2037]	452	drho_air = 1.0_wp / rho_air
	453	drho_air_zw = 1.0_wp / rho_air_zw
	454
	455	!
	456	!-- Allocation of flux conversion arrays
	457	ALLOCATE( heatflux_input_conversion(nzb:nzt+1) )
	458	ALLOCATE( waterflux_input_conversion(nzb:nzt+1) )
	459	ALLOCATE( momentumflux_input_conversion(nzb:nzt+1) )
	460	ALLOCATE( heatflux_output_conversion(nzb:nzt+1) )
	461	ALLOCATE( waterflux_output_conversion(nzb:nzt+1) )
	462	ALLOCATE( momentumflux_output_conversion(nzb:nzt+1) )
	463
	464	!
[4648]	465	!-- Calculate flux conversion factors according to approximation and in-/output mode
[2037]	466	DO k = nzb, nzt+1
	467
	468	IF ( TRIM( flux_input_mode ) == 'kinematic' ) THEN
	469	heatflux_input_conversion(k) = rho_air_zw(k)
	470	waterflux_input_conversion(k) = rho_air_zw(k)
	471	momentumflux_input_conversion(k) = rho_air_zw(k)
	472	ELSEIF ( TRIM( flux_input_mode ) == 'dynamic' ) THEN
[3274]	473	heatflux_input_conversion(k) = 1.0_wp / c_p
[2037]	474	waterflux_input_conversion(k) = 1.0_wp / l_v
	475	momentumflux_input_conversion(k) = 1.0_wp
	476	ENDIF
	477
	478	IF ( TRIM( flux_output_mode ) == 'kinematic' ) THEN
	479	heatflux_output_conversion(k) = drho_air_zw(k)
	480	waterflux_output_conversion(k) = drho_air_zw(k)
	481	momentumflux_output_conversion(k) = drho_air_zw(k)
	482	ELSEIF ( TRIM( flux_output_mode ) == 'dynamic' ) THEN
[3274]	483	heatflux_output_conversion(k) = c_p
[2037]	484	waterflux_output_conversion(k) = l_v
	485	momentumflux_output_conversion(k) = 1.0_wp
	486	ENDIF
	487
	488	IF ( .NOT. humidity ) THEN
	489	waterflux_input_conversion(k) = 1.0_wp
	490	waterflux_output_conversion(k) = 1.0_wp
	491	ENDIF
	492
	493	ENDDO
	494
	495	!
[4648]	496	!-- In case of multigrid method, compute grid lengths and grid factors for the grid levels with
	497	!-- respective density on each grid.
[2037]	498	IF ( psolver(1:9) == 'multigrid' ) THEN
	499
	500	ALLOCATE( ddx2_mg(maximum_grid_level) )
	501	ALLOCATE( ddy2_mg(maximum_grid_level) )
	502	ALLOCATE( dzu_mg(nzb+1:nzt+1,maximum_grid_level) )
	503	ALLOCATE( dzw_mg(nzb+1:nzt+1,maximum_grid_level) )
	504	ALLOCATE( f1_mg(nzb+1:nzt,maximum_grid_level) )
	505	ALLOCATE( f2_mg(nzb+1:nzt,maximum_grid_level) )
	506	ALLOCATE( f3_mg(nzb+1:nzt,maximum_grid_level) )
	507	ALLOCATE( rho_air_mg(nzb:nzt+1,maximum_grid_level) )
	508	ALLOCATE( rho_air_zw_mg(nzb:nzt+1,maximum_grid_level) )
	509
	510	dzu_mg(:,maximum_grid_level) = dzu
	511	rho_air_mg(:,maximum_grid_level) = rho_air
[4648]	512	!
	513	!-- Next line to ensure an equally spaced grid.
[2037]	514	dzu_mg(1,maximum_grid_level) = dzu(2)
[4648]	515	rho_air_mg(nzb,maximum_grid_level) = rho_air(nzb) + (rho_air(nzb) - rho_air(nzb+1))
[2037]	516
	517	dzw_mg(:,maximum_grid_level) = dzw
	518	rho_air_zw_mg(:,maximum_grid_level) = rho_air_zw
	519	nzt_l = nzt
	520	DO l = maximum_grid_level-1, 1, -1
	521	dzu_mg(nzb+1,l) = 2.0_wp * dzu_mg(nzb+1,l+1)
	522	dzw_mg(nzb+1,l) = 2.0_wp * dzw_mg(nzb+1,l+1)
[4648]	523	rho_air_mg(nzb,l) = rho_air_mg(nzb,l+1) + ( rho_air_mg(nzb,l+1) - &
	524	rho_air_mg(nzb+1,l+1) )
	525	rho_air_zw_mg(nzb,l) = rho_air_zw_mg(nzb,l+1) + ( rho_air_zw_mg(nzb,l+1) - &
	526	rho_air_zw_mg(nzb+1,l+1) )
[2037]	527	rho_air_mg(nzb+1,l) = rho_air_mg(nzb+1,l+1)
	528	rho_air_zw_mg(nzb+1,l) = rho_air_zw_mg(nzb+1,l+1)
	529	nzt_l = nzt_l / 2
	530	DO k = 2, nzt_l+1
	531	dzu_mg(k,l) = dzu_mg(2k-2,l+1) + dzu_mg(2k-1,l+1)
	532	dzw_mg(k,l) = dzw_mg(2k-2,l+1) + dzw_mg(2k-1,l+1)
	533	rho_air_mg(k,l) = rho_air_mg(2*k-1,l+1)
	534	rho_air_zw_mg(k,l) = rho_air_zw_mg(2*k-1,l+1)
	535	ENDDO
	536	ENDDO
	537
	538	nzt_l = nzt
	539	dx_l = dx
	540	dy_l = dy
	541	DO l = maximum_grid_level, 1, -1
	542	ddx2_mg(l) = 1.0_wp / dx_l**2
	543	ddy2_mg(l) = 1.0_wp / dy_l**2
	544	DO k = nzb+1, nzt_l
	545	f2_mg(k,l) = rho_air_zw_mg(k,l) / ( dzu_mg(k+1,l) * dzw_mg(k,l) )
	546	f3_mg(k,l) = rho_air_zw_mg(k-1,l) / ( dzu_mg(k,l) * dzw_mg(k,l) )
[4648]	547	f1_mg(k,l) = 2.0_wp * ( ddx2_mg(l) + ddy2_mg(l) ) &
[2037]	548	* rho_air_mg(k,l) + f2_mg(k,l) + f3_mg(k,l)
	549	ENDDO
	550	nzt_l = nzt_l / 2
	551	dx_l = dx_l * 2.0_wp
	552	dy_l = dy_l * 2.0_wp
	553	ENDDO
	554
	555	ENDIF
	556
	557	!
[1299]	558	!-- 1D-array for large scale subsidence velocity
[1361]	559	IF ( .NOT. ALLOCATED( w_subs ) ) THEN
	560	ALLOCATE ( w_subs(nzb:nzt+1) )
	561	w_subs = 0.0_wp
	562	ENDIF
[1299]	563
	564	!
[1]	565	!-- Initial assignment of the pointers
[1032]	566	IF ( .NOT. neutral ) THEN
	567	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
	568	ELSE
	569	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
	570	ENDIF
[1001]	571	u => u_1; u_p => u_2; tu_m => u_3
	572	v => v_1; v_p => v_2; tv_m => v_3
	573	w => w_1; w_p => w_2; tw_m => w_3
[1]	574
[1960]	575	IF ( humidity ) THEN
[1001]	576	q => q_1; q_p => q_2; tq_m => q_3
[3274]	577	vpt => vpt_1
[1001]	578	ENDIF
[4648]	579
[1960]	580	IF ( passive_scalar ) THEN
	581	s => s_1; s_p => s_2; ts_m => s_3
[4648]	582	ENDIF
[1]	583
	584	!
[2696]	585	!-- Initialize surface arrays
[2232]	586	CALL init_surface_arrays
	587	!
[3294]	588	!-- Allocate arrays for other modules
[3685]	589	CALL module_interface_init_arrays
[1551]	590
[1914]	591
[2320]	592	!
[4648]	593	!-- Allocate arrays containing the RK coefficient for calculation of perturbation pressure and
	594	!-- turbulent fluxes. At this point values are set for pressure calculation during initialization
	595	!-- (where no timestep is done). Further below the values needed within the timestep scheme will be
	596	!-- set.
	597	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
[1878]	598	weight_pres(1:intermediate_timestep_count_max) )
[1340]	599	weight_substep = 1.0_wp
	600	weight_pres = 1.0_wp
[1918]	601	intermediate_timestep_count = 0 ! needed when simulated_time = 0.0
[4648]	602
[3987]	603	IF ( debug_output ) CALL debug_message( 'allocating arrays', 'end' )
[1918]	604
[673]	605	!
[3014]	606	!-- Initialize time series
	607	ts_value = 0.0_wp
	608
	609	!
[1918]	610	!-- Initialize local summation arrays for routine flow_statistics.
[4648]	611	!-- This is necessary because they may not yet have been initialized when they are called from
	612	!-- flow_statistics (or - depending on the chosen model run - are never initialized)
	613	sums_divnew_l = 0.0_wp
	614	sums_divold_l = 0.0_wp
	615	sums_l_l = 0.0_wp
	616	sums_wsts_bc_l = 0.0_wp
	617
[1918]	618	!
[1]	619	!-- Initialize model variables
[4648]	620	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[328]	621	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[1]	622	!
[2696]	623	!-- Initialization with provided input data derived from larger-scale model
	624	IF ( INDEX( initializing_actions, 'inifor' ) /= 0 ) THEN
[3987]	625	IF ( debug_output ) CALL debug_message( 'initializing with INIFOR', 'start' )
[2696]	626	!
[4648]	627	!-- Read initial 1D profiles or 3D data from NetCDF file, depending on the provided
	628	!-- level-of-detail.
	629	!-- At the moment, only u, v, w, pt and q are provided.
[2696]	630	CALL netcdf_data_input_init_3d
	631	!
[4648]	632	!-- Please note, Inifor provides data from nzb+1 to nzt.
	633	!-- Bottom and top boundary conditions for Inifor profiles are already set (just after
	634	!-- reading), so that this is not necessary here.
	635	!-- Depending on the provided level-of-detail, initial Inifor data is either stored on data
	636	!-- type (lod=1), or directly on 3D arrays (lod=2).
	637	!-- In order to obtain also initial profiles in case of lod=2 (which is required for e.g.
	638	!-- damping), average over 3D data.
[3182]	639	IF( init_3d%lod_u == 1 ) THEN
	640	u_init = init_3d%u_init
[4648]	641	ELSEIF( init_3d%lod_u == 2 ) THEN
	642	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	643	DO k = nzb, nzt+1
	644	init_l(k) = SUM( u(k,nys:nyn,nxl:nxr) )
	645	ENDDO
	646	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
[1384]	647
[3182]	648	#if defined( __parallel )
[4648]	649	CALL MPI_ALLREDUCE( init_l, u_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	650	#else
	651	u_init = init_l
	652	#endif
	653	DEALLOCATE( init_l )
[3051]	654
[2696]	655	ENDIF
[4648]	656
	657	IF( init_3d%lod_v == 1 ) THEN
[3182]	658	v_init = init_3d%v_init
[4648]	659	ELSEIF( init_3d%lod_v == 2 ) THEN
	660	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	661	DO k = nzb, nzt+1
	662	init_l(k) = SUM( v(k,nys:nyn,nxl:nxr) )
	663	ENDDO
	664	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
[2696]	665
[3182]	666	#if defined( __parallel )
[4648]	667	CALL MPI_ALLREDUCE( init_l, v_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	668	#else
	669	v_init = init_l
	670	#endif
	671	DEALLOCATE( init_l )
	672	ENDIF
	673	IF( .NOT. neutral ) THEN
	674	IF( init_3d%lod_pt == 1 ) THEN
	675	pt_init = init_3d%pt_init
[4648]	676	ELSEIF( init_3d%lod_pt == 2 ) THEN
	677	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	678	DO k = nzb, nzt+1
	679	init_l(k) = SUM( pt(k,nys:nyn,nxl:nxr) )
	680	ENDDO
	681	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
	682
	683	#if defined( __parallel )
[4648]	684	CALL MPI_ALLREDUCE( init_l, pt_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	685	#else
	686	pt_init = init_l
	687	#endif
	688	DEALLOCATE( init_l )
	689	ENDIF
	690	ENDIF
	691
	692
	693	IF( humidity ) THEN
	694	IF( init_3d%lod_q == 1 ) THEN
	695	q_init = init_3d%q_init
[4648]	696	ELSEIF( init_3d%lod_q == 2 ) THEN
	697	ALLOCATE( init_l(nzb:nzt+1) )
[3182]	698	DO k = nzb, nzt+1
	699	init_l(k) = SUM( q(k,nys:nyn,nxl:nxr) )
	700	ENDDO
	701	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
	702
	703	#if defined( __parallel )
[4648]	704	CALL MPI_ALLREDUCE( init_l, q_init, nzt+1-nzb+1, MPI_REAL, MPI_SUM, comm2d, ierr )
[3182]	705	#else
	706	q_init = init_l
	707	#endif
	708	DEALLOCATE( init_l )
	709	ENDIF
	710	ENDIF
	711
[2696]	712	!
[4648]	713	!-- Write initial profiles onto 3D arrays.
	714	!-- Work-around, 3D initialization of u,v,w creates artificial structures which correlate with
	715	!-- the processor grid. The reason for this is still unknown. To work-around this, 3D
	716	!-- initialization will be effectively reduce to a 1D initialization where no such artificial
	717	!-- structures appear.
[2696]	718	DO i = nxlg, nxrg
	719	DO j = nysg, nyng
[4648]	720	IF( init_3d%lod_u == 1 .OR. init_3d%lod_u == 2 ) u(:,j,i) = u_init(:)
	721	IF( init_3d%lod_v == 1 .OR. init_3d%lod_u == 2 ) v(:,j,i) = v_init(:)
	722	IF( .NOT. neutral .AND. ( init_3d%lod_pt == 1 .OR. init_3d%lod_pt == 2 ) ) &
[3051]	723	pt(:,j,i) = pt_init(:)
[4648]	724	IF( humidity .AND. ( init_3d%lod_q == 1 .OR. init_3d%lod_q == 2 ) ) &
[4130]	725	q(:,j,i) = q_init(:)
[2696]	726	ENDDO
	727	ENDDO
	728	!
[4648]	729	!-- Set geostrophic wind components.
[2938]	730	IF ( init_3d%from_file_ug ) THEN
	731	ug(:) = init_3d%ug_init(:)
	732	ENDIF
	733	IF ( init_3d%from_file_vg ) THEN
	734	vg(:) = init_3d%vg_init(:)
	735	ENDIF
[3404]	736	!
	737	!-- Set bottom and top boundary condition for geostrophic wind
[2938]	738	ug(nzt+1) = ug(nzt)
	739	vg(nzt+1) = vg(nzt)
[3404]	740	ug(nzb) = ug(nzb+1)
	741	vg(nzb) = vg(nzb+1)
[2696]	742	!
	743	!-- Set inital w to 0
	744	w = 0.0_wp
	745
	746	IF ( passive_scalar ) THEN
	747	DO i = nxlg, nxrg
	748	DO j = nysg, nyng
	749	s(:,j,i) = s_init
	750	ENDDO
	751	ENDDO
	752	ENDIF
	753
	754	!
[4648]	755	!-- Set velocity components at non-atmospheric / oceanic grid points to zero.
[4346]	756	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
	757	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
	758	w = MERGE( w, 0.0_wp, BTEST( wall_flags_total_0, 3 ) )
[2700]	759	!
[4648]	760	!-- Initialize surface variables, e.g. friction velocity, momentum fluxes, etc.
	761	CALL init_surfaces
[2696]	762
[4648]	763	IF ( debug_output ) CALL debug_message( 'initializing with INIFOR', 'end' )
[2696]	764	!
	765	!-- Initialization via computed 1D-model profiles
	766	ELSEIF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
	767
[4648]	768	IF ( debug_output ) CALL debug_message( 'initializing with 1D model profiles', 'start' )
[1]	769	!
	770	!-- Use solutions of the 1D model as initial profiles,
	771	!-- start 1D model
	772	CALL init_1d_model
	773	!
	774	!-- Transfer initial profiles to the arrays of the 3D model
[667]	775	DO i = nxlg, nxrg
	776	DO j = nysg, nyng
[1]	777	pt(:,j,i) = pt_init
	778	u(:,j,i) = u1d
	779	v(:,j,i) = v1d
	780	ENDDO
	781	ENDDO
	782
[1960]	783	IF ( humidity ) THEN
[667]	784	DO i = nxlg, nxrg
	785	DO j = nysg, nyng
[1]	786	q(:,j,i) = q_init
	787	ENDDO
	788	ENDDO
	789	ENDIF
[2292]	790
[1960]	791	IF ( passive_scalar ) THEN
	792	DO i = nxlg, nxrg
	793	DO j = nysg, nyng
	794	s(:,j,i) = s_init
	795	ENDDO
[4648]	796	ENDDO
[1960]	797	ENDIF
[1]	798	!
	799	!-- Store initial profiles for output purposes etc.
[2696]	800	IF ( .NOT. constant_diffusion ) THEN
[1]	801	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	802	ENDIF
	803	!
[2696]	804	!-- Set velocities back to zero
[4346]	805	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
[4648]	806	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
[1]	807	!
[4648]	808	!-- WARNING: The extra boundary conditions set after running the 1D model impose an error on
	809	!-- -------- the divergence one layer below the topography; need to correct later
	810	!-- ATTENTION: Provisional correction for Piacsek & Williams advection scheme: keep u and v
	811	!-- ---------- zero one layer below the topography.
[2696]	812	IF ( ibc_uv_b == 1 ) THEN
[667]	813	!
[2696]	814	!-- Neumann condition
	815	DO i = nxl-1, nxr+1
	816	DO j = nys-1, nyn+1
	817	u(nzb,j,i) = u(nzb+1,j,i)
	818	v(nzb,j,i) = v(nzb+1,j,i)
[1]	819	ENDDO
[2696]	820	ENDDO
[1]	821
	822	ENDIF
[2618]	823	!
[4648]	824	!-- Initialize surface variables, e.g. friction velocity, momentum fluxes, etc.
[2618]	825	CALL init_surfaces
[1]	826
[4648]	827	IF ( debug_output ) CALL debug_message( 'initializing with 1D model profiles', 'end' )
[1384]	828
[4648]	829	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) THEN
[1241]	830
[4648]	831	IF ( debug_output ) CALL debug_message( 'initializing with constant profiles', 'start' )
[2259]	832
	833	!
[4648]	834	!-- Use constructed initial profiles (velocity constant with height, temperature profile with
	835	!-- constant gradient)
[667]	836	DO i = nxlg, nxrg
	837	DO j = nysg, nyng
[1]	838	pt(:,j,i) = pt_init
	839	u(:,j,i) = u_init
	840	v(:,j,i) = v_init
	841	ENDDO
	842	ENDDO
	843	!
[2758]	844	!-- Mask topography
[4346]	845	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
	846	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
[2758]	847	!
[4648]	848	!-- Set initial horizontal velocities at the lowest computational grid levels to zero in order
	849	!-- to avoid too small time steps caused by the diffusion limit in the initial phase of a run
	850	!-- (at k=1, dz/2 occurs in the limiting formula!).
	851	!-- Please note, in case land- or urban-surface model is used and a spinup is applied, masking
	852	!-- the lowest computational level is not possible as MOST as well as energy-balance
	853	!-- parametrizations will not work with zero wind velocity.
	854	IF ( ibc_uv_b /= 1 .AND. .NOT. spinup ) THEN
[1815]	855	DO i = nxlg, nxrg
	856	DO j = nysg, nyng
[2232]	857	DO k = nzb, nzt
[4648]	858	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 20 ) )
	859	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 21 ) )
[2232]	860	ENDDO
[1815]	861	ENDDO
	862	ENDDO
	863	ENDIF
[1]	864
[1960]	865	IF ( humidity ) THEN
[667]	866	DO i = nxlg, nxrg
	867	DO j = nysg, nyng
[1]	868	q(:,j,i) = q_init
	869	ENDDO
	870	ENDDO
	871	ENDIF
[4648]	872
[1960]	873	IF ( passive_scalar ) THEN
	874	DO i = nxlg, nxrg
	875	DO j = nysg, nyng
	876	s(:,j,i) = s_init
	877	ENDDO
	878	ENDDO
	879	ENDIF
[1]	880
[1920]	881	!
[4648]	882	!-- Compute initial temperature field and other constants used in case of a sloping surface.
[1]	883	IF ( sloping_surface ) CALL init_slope
[2618]	884	!
[4648]	885	!-- Initialize surface variables, e.g. friction velocity, momentum fluxes, etc.
[2618]	886	CALL init_surfaces
[4648]	887
[3987]	888	IF ( debug_output ) CALL debug_message( 'initializing with constant profiles', 'end' )
[1384]	889
[4648]	890	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) THEN
[1384]	891
[3987]	892	IF ( debug_output ) CALL debug_message( 'initializing by user', 'start' )
[46]	893	!
[4648]	894	!-- Pre-initialize surface variables, i.e. setting start- and end-indices at each
	895	!-- (j,i)-location. Please note, this does not supersede user-defined initialization of
	896	!-- surface quantities.
[2618]	897	CALL init_surfaces
	898	!
[46]	899	!-- Initialization will completely be done by the user
	900	CALL user_init_3d_model
	901
[3987]	902	IF ( debug_output ) CALL debug_message( 'initializing by user', 'end' )
[1384]	903
[1]	904	ENDIF
[1384]	905
[4648]	906	IF ( debug_output ) THEN
	907	CALL debug_message( 'initializing statistics, boundary conditions, etc.', 'start' )
	908	ENDIF
[1384]	909
[667]	910	!
	911	!-- Bottom boundary
[4648]	912	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
[1340]	913	u(nzb,:,:) = 0.0_wp
	914	v(nzb,:,:) = 0.0_wp
[667]	915	ENDIF
[1]	916
	917	!
[151]	918	!-- Apply channel flow boundary condition
[132]	919	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
[1340]	920	u(nzt+1,:,:) = 0.0_wp
	921	v(nzt+1,:,:) = 0.0_wp
[132]	922	ENDIF
	923
	924	!
[1]	925	!-- Calculate virtual potential temperature
[1960]	926	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
[1]	927
	928	!
[4648]	929	!-- Store initial profiles for output purposes etc.. Please note, in case of initialization of u,
	930	!-- v, w, pt, and q via output data derived from larger scale models, data will not be
	931	!-- horizontally homogeneous. Actually, a mean profile should be calculated before.
[1]	932	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	933	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
[667]	934	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
[1340]	935	hom(nzb,1,5,:) = 0.0_wp
	936	hom(nzb,1,6,:) = 0.0_wp
[1]	937	ENDIF
	938	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	939
[75]	940	IF ( humidity ) THEN
[1]	941	!
[4648]	942	!-- Store initial profile of total water content, virtual potential temperature
[1]	943	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	944	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
[2696]	945	!
[4648]	946	!-- Store initial profile of mixing ratio and potential temperature
[3274]	947	IF ( bulk_cloud_model .OR. cloud_droplets ) THEN
[1]	948	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	949	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	950	ENDIF
	951	ENDIF
	952
[2696]	953	!
	954	!-- Store initial scalar profile
[1]	955	IF ( passive_scalar ) THEN
[2513]	956	hom(:,1,121,:) = SPREAD( s(:,nys,nxl), 2, statistic_regions+1 )
[1]	957	ENDIF
	958
	959	!
[1400]	960	!-- Initialize the random number generators (from numerical recipes)
	961	CALL random_function_ini
[4648]	962
[1400]	963	IF ( random_generator == 'random-parallel' ) THEN
[3241]	964	CALL init_parallel_random_generator( nx, nys, nyn, nxl, nxr )
[1400]	965	ENDIF
	966	!
[4648]	967	!-- Set the reference state to be used in the buoyancy terms (for ocean runs the reference state
	968	!-- will be set (overwritten) in init_ocean).
[1179]	969	IF ( use_single_reference_value ) THEN
[4648]	970	IF ( .NOT. humidity ) THEN
[1179]	971	ref_state(:) = pt_reference
	972	ELSE
	973	ref_state(:) = vpt_reference
	974	ENDIF
	975	ELSE
[4648]	976	IF ( .NOT. humidity ) THEN
[1179]	977	ref_state(:) = pt_init(:)
	978	ELSE
	979	ref_state(:) = vpt(:,nys,nxl)
	980	ENDIF
	981	ENDIF
[152]	982
	983	!
[707]	984	!-- For the moment, vertical velocity is zero
[1340]	985	w = 0.0_wp
[1]	986
	987	!
	988	!-- Initialize array sums (must be defined in first call of pres)
[1340]	989	sums = 0.0_wp
[1]	990
	991	!
[707]	992	!-- In case of iterative solvers, p must get an initial value
[1575]	993	IF ( psolver(1:9) == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
[707]	994	!
[1]	995	!-- Impose vortex with vertical axis on the initial velocity profile
	996	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	997	CALL init_rankine
	998	ENDIF
	999
	1000	!
[4648]	1001	!-- Impose temperature anomaly (advection test only) or warm air bubble close to surface.
	1002	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 .OR. &
[3035]	1003	INDEX( initializing_actions, 'initialize_bubble' ) /= 0 ) THEN
[1]	1004	CALL init_pt_anomaly
	1005	ENDIF
[4648]	1006
[1]	1007	!
	1008	!-- If required, change the surface temperature at the start of the 3D run
[1340]	1009	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
[1]	1010	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	1011	ENDIF
	1012
	1013	!
	1014	!-- If required, change the surface humidity/scalar at the start of the 3D
	1015	!-- run
[4648]	1016	IF ( humidity .AND. q_surface_initial_change /= 0.0_wp ) &
[1]	1017	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
[4648]	1018
	1019	IF ( passive_scalar .AND. s_surface_initial_change /= 0.0_wp ) &
[1960]	1020	s(nzb,:,:) = s(nzb,:,:) + s_surface_initial_change
[1]	1021
[4648]	1022
[1]	1023	!
	1024	!-- Initialize old and new time levels.
[2696]	1025	tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
	1026	pt_p = pt; u_p = u; v_p = v; w_p = w
[1]	1027
[1960]	1028	IF ( humidity ) THEN
[1340]	1029	tq_m = 0.0_wp
[1]	1030	q_p = q
	1031	ENDIF
[4648]	1032
[1960]	1033	IF ( passive_scalar ) THEN
	1034	ts_m = 0.0_wp
	1035	s_p = s
[4648]	1036	ENDIF
[1]	1037
[4648]	1038	IF ( debug_output ) THEN
	1039	CALL debug_message( 'initializing statistics, boundary conditions, etc.', 'end' )
	1040	ENDIF
[94]	1041
[1788]	1042	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
[2232]	1043	TRIM( initializing_actions ) == 'cyclic_fill' ) &
[1]	1044	THEN
[1384]	1045
[4648]	1046	IF ( debug_output ) THEN
	1047	CALL debug_message( 'initializing in case of restart / cyclic_fill', 'start' )
	1048	ENDIF
[1]	1049	!
[4648]	1050	!-- Initialize surface elements and its attributes, e.g. heat- and momentumfluxes, roughness,
	1051	!-- scaling parameters. As number of surface elements might be different between runs, e.g. in
	1052	!-- case of cyclic fill, and not all surface elements are read, surface elements need to be
	1053	!-- initialized before.
	1054	!-- Please note, in case of cyclic fill, surfaces should be initialized after restart data is
	1055	!-- read, else, individual settings of surface parameters will be overwritten from data of
	1056	!-- precursor run, hence, init_surfaces is called a second time after reading the restart data.
	1057	CALL init_surfaces
[3609]	1058	!
[4648]	1059	!-- When reading data for cyclic fill of 3D prerun data files, read some of the global variables
	1060	!-- from the restart file which are required for initializing the inflow
[328]	1061	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[559]	1062
[4783]	1063	!
	1064	!-- Blockwise I/O does not work together with MPI-I/O
	1065	IF ( restart_data_format_input(1:3) == 'mpi' ) THEN
	1066	CALL rrd_read_parts_of_global
	1067	ELSE
	1068	DO i = 0, io_blocks-1
	1069	IF ( i == io_group ) THEN
	1070	CALL rrd_read_parts_of_global
	1071	ENDIF
	1072	#if defined( __parallel )
	1073	CALL MPI_BARRIER( comm2d, ierr )
	1074	#endif
	1075	ENDDO
	1076	ENDIF
	1077
	1078	ENDIF
	1079
	1080	!
	1081	!-- Read processor specific binary data from restart file.
	1082	!-- Blockwise I/O does not work together with MPI-I/O
	1083	IF ( restart_data_format_input(1:3) == 'mpi' ) THEN
	1084	CALL rrd_local
	1085	ELSE
[759]	1086	DO i = 0, io_blocks-1
	1087	IF ( i == io_group ) THEN
[4783]	1088	CALL rrd_local
[759]	1089	ENDIF
	1090	#if defined( __parallel )
	1091	CALL MPI_BARRIER( comm2d, ierr )
	1092	#endif
	1093	ENDDO
[767]	1094	ENDIF
	1095
[4648]	1096
[4365]	1097	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1098
[3608]	1099	!
[4648]	1100	!-- In case of cyclic fill, call init_surfaces a second time, so that surface properties such
	1101	!-- as heat fluxes are initialized as prescribed.
[3609]	1102	CALL init_surfaces
[767]	1103
[328]	1104	!
[4648]	1105	!-- Overwrite u_init, v_init, pt_init, q_init and s_init with the horizontally mean (hom)
	1106	!-- vertical profiles from the end of the prerun, because these profiles shall be used as the
	1107	!-- reference state for the rayleigh damping and the pt_damping. This is especially important
	1108	!-- for the use of large_scale_subsidence, because the reference temperature in the free
	1109	!-- atmosphere changes in time.
[4365]	1110	u_init(:) = hom_sum(:,1,0)
	1111	v_init(:) = hom_sum(:,2,0)
	1112	pt_init(:) = hom_sum(:,4,0)
[4648]	1113	IF ( humidity ) q_init(:) = hom_sum(:,41,0)
	1114	IF ( passive_scalar ) s_init(:) = hom_sum(:,115,0)
[4365]	1115	ENDIF
	1116	!
[4648]	1117	!-- In case of complex terrain and cyclic fill method as initialization, shift initial data in
	1118	!-- the vertical direction for each point in the x-y-plane depending on local surface height.
	1119	IF ( complex_terrain .AND. TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[2550]	1120	DO i = nxlg, nxrg
	1121	DO j = nysg, nyng
[4168]	1122	nz_u_shift = topo_top_ind(j,i,1)
	1123	nz_v_shift = topo_top_ind(j,i,2)
	1124	nz_w_shift = topo_top_ind(j,i,3)
	1125	nz_s_shift = topo_top_ind(j,i,0)
[2550]	1126
[4648]	1127	u(nz_u_shift:nzt+1,j,i) = u(0:nzt+1-nz_u_shift,j,i)
[2550]	1128
	1129	v(nz_v_shift:nzt+1,j,i) = v(0:nzt+1-nz_v_shift,j,i)
	1130
	1131	w(nz_w_shift:nzt+1,j,i) = w(0:nzt+1-nz_w_shift,j,i)
	1132
	1133	p(nz_s_shift:nzt+1,j,i) = p(0:nzt+1-nz_s_shift,j,i)
	1134	pt(nz_s_shift:nzt+1,j,i) = pt(0:nzt+1-nz_s_shift,j,i)
	1135	ENDDO
	1136	ENDDO
	1137	ENDIF
	1138	!
[767]	1139	!-- Initialization of the turbulence recycling method
[4648]	1140	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. turbulent_inflow ) THEN
[767]	1141	!
	1142	!-- First store the profiles to be used at the inflow.
[4648]	1143	!-- These profiles are the (temporally) and horizontally averaged vertical profiles from the
	1144	!-- prerun. Alternatively, prescribed profiles for u,v-components can be used.
[3288]	1145	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,1:num_mean_inflow_profiles) )
[151]	1146
[767]	1147	IF ( use_prescribed_profile_data ) THEN
	1148	mean_inflow_profiles(:,1) = u_init ! u
	1149	mean_inflow_profiles(:,2) = v_init ! v
	1150	ELSE
[328]	1151	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
	1152	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
[767]	1153	ENDIF
	1154	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
[4648]	1155	IF ( humidity ) mean_inflow_profiles(:,6) = hom_sum(:,41,0) ! q
	1156	IF ( passive_scalar ) mean_inflow_profiles(:,7) = hom_sum(:,115,0) ! s
[4365]	1157
[2550]	1158	!
[4648]	1159	!-- In case of complex terrain, determine vertical displacement at inflow boundary and adjust
	1160	!-- mean inflow profiles
[2550]	1161	IF ( complex_terrain ) THEN
[4648]	1162	IF ( nxlg <= 0 .AND. nxrg >= 0 .AND. nysg <= 0 .AND. nyng >= 0 ) THEN
[4168]	1163	nz_u_shift_l = topo_top_ind(j,i,1)
	1164	nz_v_shift_l = topo_top_ind(j,i,2)
	1165	nz_w_shift_l = topo_top_ind(j,i,3)
	1166	nz_s_shift_l = topo_top_ind(j,i,0)
[2550]	1167	ELSE
	1168	nz_u_shift_l = 0
	1169	nz_v_shift_l = 0
	1170	nz_w_shift_l = 0
	1171	nz_s_shift_l = 0
	1172	ENDIF
[151]	1173
[2550]	1174	#if defined( __parallel )
[4648]	1175	CALL MPI_ALLREDUCE( nz_u_shift_l, nz_u_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
	1176	CALL MPI_ALLREDUCE( nz_v_shift_l, nz_v_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
	1177	CALL MPI_ALLREDUCE( nz_w_shift_l, nz_w_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
	1178	CALL MPI_ALLREDUCE( nz_s_shift_l, nz_s_shift, 1, MPI_INTEGER, MPI_MAX, comm2d, ierr )
[2550]	1179	#else
	1180	nz_u_shift = nz_u_shift_l
	1181	nz_v_shift = nz_v_shift_l
	1182	nz_w_shift = nz_w_shift_l
	1183	nz_s_shift = nz_s_shift_l
	1184	#endif
	1185
	1186	mean_inflow_profiles(:,1) = 0.0_wp
	1187	mean_inflow_profiles(nz_u_shift:nzt+1,1) = hom_sum(0:nzt+1-nz_u_shift,1,0) ! u
	1188
	1189	mean_inflow_profiles(:,2) = 0.0_wp
	1190	mean_inflow_profiles(nz_v_shift:nzt+1,2) = hom_sum(0:nzt+1-nz_v_shift,2,0) ! v
	1191
	1192	mean_inflow_profiles(nz_s_shift:nzt+1,4) = hom_sum(0:nzt+1-nz_s_shift,4,0) ! pt
	1193
	1194	ENDIF
	1195
[151]	1196	!
[4648]	1197	!-- If necessary, adjust the horizontal flow field to the prescribed profiles
[767]	1198	IF ( use_prescribed_profile_data ) THEN
	1199	DO i = nxlg, nxrg
[667]	1200	DO j = nysg, nyng
[328]	1201	DO k = nzb, nzt+1
[767]	1202	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
	1203	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
[328]	1204	ENDDO
[151]	1205	ENDDO
[767]	1206	ENDDO
	1207	ENDIF
[151]	1208
	1209	!
[4648]	1210	!-- Use these mean profiles at the inflow (provided that Dirichlet conditions are used)
[3182]	1211	IF ( bc_dirichlet_l ) THEN
[767]	1212	DO j = nysg, nyng
	1213	DO k = nzb, nzt+1
	1214	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
	1215	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
[1340]	1216	w(k,j,nxlg:-1) = 0.0_wp
[767]	1217	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
[4648]	1218	IF ( humidity ) q(k,j,nxlg:-1) = mean_inflow_profiles(k,6)
	1219	IF ( passive_scalar ) s(k,j,nxlg:-1) = mean_inflow_profiles(k,7)
[767]	1220	ENDDO
	1221	ENDDO
	1222	ENDIF
	1223
[151]	1224	!
[4648]	1225	!-- Calculate the damping factors to be used at the inflow. For a turbulent inflow the
	1226	!-- turbulent fluctuations have to be limited vertically because otherwise the turbulent
	1227	!-- inflow layer will grow in time.
[1340]	1228	IF ( inflow_damping_height == 9999999.9_wp ) THEN
[767]	1229	!
[4648]	1230	!-- Default: use the inversion height calculated by the prerun; if this is zero,
	1231	!-- inflow_damping_height must be explicitly specified.
[1340]	1232	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
[767]	1233	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
	1234	ELSE
[4648]	1235	WRITE( message_string, * ) 'inflow_damping_height must be ', &
	1236	'explicitly specified because&the inversion height ', &
	1237	'calculated by the prerun is zero.'
[767]	1238	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
[292]	1239	ENDIF
[151]	1240
[767]	1241	ENDIF
	1242
[1340]	1243	IF ( inflow_damping_width == 9999999.9_wp ) THEN
[151]	1244	!
[4648]	1245	!-- Default for the transition range: one tenth of the undamped layer
[1340]	1246	inflow_damping_width = 0.1_wp * inflow_damping_height
[151]	1247
[767]	1248	ENDIF
[151]	1249
[767]	1250	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
[151]	1251
[767]	1252	DO k = nzb, nzt+1
[151]	1253
[767]	1254	IF ( zu(k) <= inflow_damping_height ) THEN
[1340]	1255	inflow_damping_factor(k) = 1.0_wp
[996]	1256	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
[4648]	1257	inflow_damping_factor(k) = 1.0_wp - &
	1258	( zu(k) - inflow_damping_height ) / inflow_damping_width
[767]	1259	ELSE
[1340]	1260	inflow_damping_factor(k) = 0.0_wp
[767]	1261	ENDIF
[151]	1262
[767]	1263	ENDDO
[151]	1264
[147]	1265	ENDIF
	1266
[152]	1267	!
[2696]	1268	!-- Inside buildings set velocities back to zero
[4648]	1269	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. topography /= 'flat' ) THEN
[359]	1270	!
[2696]	1271	!-- Inside buildings set velocities back to zero.
	1272	!-- Other scalars (pt, q, s, p, sa, ...) are ignored at present,
[359]	1273	!-- maybe revise later.
[1001]	1274	DO i = nxlg, nxrg
	1275	DO j = nysg, nyng
[2232]	1276	DO k = nzb, nzt
[4648]	1277	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 1 ) )
	1278	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 2 ) )
	1279	w(k,j,i) = MERGE( w(k,j,i), 0.0_wp, BTEST( wall_flags_total_0(k,j,i), 3 ) )
[2232]	1280	ENDDO
[359]	1281	ENDDO
[1001]	1282	ENDDO
[359]	1283
	1284	ENDIF
	1285
	1286	!
[4648]	1287	!-- Calculate initial temperature field and other constants used in case of a sloping surface
[1]	1288	IF ( sloping_surface ) CALL init_slope
	1289
	1290	!
[4648]	1291	!-- Initialize new time levels (only done in order to set boundary values including ghost points)
[2696]	1292	pt_p = pt; u_p = u; v_p = v; w_p = w
[1960]	1293	IF ( humidity ) THEN
[1053]	1294	q_p = q
	1295	ENDIF
[1960]	1296	IF ( passive_scalar ) s_p = s
[181]	1297	!
[4648]	1298	!-- Allthough tendency arrays are set in prognostic_equations, they have have to be predefined
	1299	!-- here because they are used (but multiplied with 0) there before they are set.
[2696]	1300	tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
[1960]	1301	IF ( humidity ) THEN
[1340]	1302	tq_m = 0.0_wp
[1053]	1303	ENDIF
[1960]	1304	IF ( passive_scalar ) ts_m = 0.0_wp
[181]	1305
[4648]	1306	IF ( debug_output ) THEN
	1307	CALL debug_message( 'initializing in case of restart / cyclic_fill', 'end' )
	1308	ENDIF
[1384]	1309
[1]	1310	ELSE
	1311	!
	1312	!-- Actually this part of the programm should not be reached
[254]	1313	message_string = 'unknown initializing problem'
	1314	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
[1]	1315	ENDIF
	1316
	1317	!
[667]	1318	!-- Calculate the initial volume flow at the right and north boundary
[709]	1319	IF ( conserve_volume_flow ) THEN
[151]	1320
[767]	1321	IF ( use_prescribed_profile_data ) THEN
[667]	1322
[1340]	1323	volume_flow_initial_l = 0.0_wp
	1324	volume_flow_area_l = 0.0_wp
[732]	1325
[667]	1326	IF ( nxr == nx ) THEN
	1327	DO j = nys, nyn
[2232]	1328	DO k = nzb+1, nzt
[4648]	1329	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1330	u_init(k) * dzw(k) &
	1331	* MERGE( 1.0_wp, 0.0_wp, &
	1332	BTEST( wall_flags_total_0(k,j,nxr), 1 ) &
	1333	)
[2232]	1334
[4648]	1335	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1336	* MERGE( 1.0_wp, 0.0_wp, &
	1337	BTEST( wall_flags_total_0(k,j,nxr), 1 ) &
	1338	)
[767]	1339	ENDDO
	1340	ENDDO
	1341	ENDIF
[4648]	1342
[767]	1343	IF ( nyn == ny ) THEN
	1344	DO i = nxl, nxr
[2232]	1345	DO k = nzb+1, nzt
[4648]	1346	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1347	v_init(k) * dzw(k) &
	1348	* MERGE( 1.0_wp, 0.0_wp, &
	1349	BTEST( wall_flags_total_0(k,nyn,i), 2 ) &
	1350	)
	1351	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1352	* MERGE( 1.0_wp, 0.0_wp, &
	1353	BTEST( wall_flags_total_0(k,nyn,i), 2 ) &
	1354	)
[767]	1355	ENDDO
	1356	ENDDO
	1357	ENDIF
	1358
	1359	#if defined( __parallel )
[4648]	1360	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1), 2, MPI_REAL, &
	1361	MPI_SUM, comm2d, ierr )
	1362	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), 2, MPI_REAL, MPI_SUM, &
	1363	comm2d, ierr )
[767]	1364
	1365	#else
	1366	volume_flow_initial = volume_flow_initial_l
	1367	volume_flow_area = volume_flow_area_l
[4648]	1368	#endif
[767]	1369
	1370	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1371
[1340]	1372	volume_flow_initial_l = 0.0_wp
	1373	volume_flow_area_l = 0.0_wp
[767]	1374
	1375	IF ( nxr == nx ) THEN
	1376	DO j = nys, nyn
[2232]	1377	DO k = nzb+1, nzt
[4648]	1378	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1379	hom_sum(k,1,0) * dzw(k) &
	1380	* MERGE( 1.0_wp, 0.0_wp, &
	1381	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1382	)
	1383	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1384	* MERGE( 1.0_wp, 0.0_wp, &
	1385	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1386	)
[667]	1387	ENDDO
	1388	ENDDO
	1389	ENDIF
[4648]	1390
[667]	1391	IF ( nyn == ny ) THEN
	1392	DO i = nxl, nxr
[2232]	1393	DO k = nzb+1, nzt
[4648]	1394	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1395	hom_sum(k,2,0) * dzw(k) &
	1396	* MERGE( 1.0_wp, 0.0_wp, &
	1397	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1398	)
	1399	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1400	* MERGE( 1.0_wp, 0.0_wp, &
	1401	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1402	)
[667]	1403	ENDDO
	1404	ENDDO
	1405	ENDIF
	1406
[732]	1407	#if defined( __parallel )
[4648]	1408	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1), 2, MPI_REAL, &
	1409	MPI_SUM, comm2d, ierr )
	1410	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), 2, MPI_REAL, MPI_SUM, &
	1411	comm2d, ierr )
[732]	1412
	1413	#else
	1414	volume_flow_initial = volume_flow_initial_l
	1415	volume_flow_area = volume_flow_area_l
[4648]	1416	#endif
[732]	1417
[667]	1418	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	1419
[1340]	1420	volume_flow_initial_l = 0.0_wp
	1421	volume_flow_area_l = 0.0_wp
[732]	1422
[667]	1423	IF ( nxr == nx ) THEN
	1424	DO j = nys, nyn
[2232]	1425	DO k = nzb+1, nzt
[4648]	1426	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1427	u(k,j,nx) * dzw(k) &
	1428	* MERGE( 1.0_wp, 0.0_wp, &
	1429	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1430	)
	1431	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1432	* MERGE( 1.0_wp, 0.0_wp, &
	1433	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
	1434	)
[667]	1435	ENDDO
	1436	ENDDO
	1437	ENDIF
[4648]	1438
[667]	1439	IF ( nyn == ny ) THEN
	1440	DO i = nxl, nxr
[2232]	1441	DO k = nzb+1, nzt
[4648]	1442	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1443	v(k,ny,i) * dzw(k) &
	1444	* MERGE( 1.0_wp, 0.0_wp, &
	1445	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1446	)
	1447	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1448	* MERGE( 1.0_wp, 0.0_wp, &
	1449	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
	1450	)
[667]	1451	ENDDO
	1452	ENDDO
	1453	ENDIF
	1454
	1455	#if defined( __parallel )
[4648]	1456	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1), 2, MPI_REAL, &
	1457	MPI_SUM, comm2d, ierr )
	1458	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), 2, MPI_REAL, MPI_SUM, &
	1459	comm2d, ierr )
[667]	1460
	1461	#else
[732]	1462	volume_flow_initial = volume_flow_initial_l
	1463	volume_flow_area = volume_flow_area_l
[4648]	1464	#endif
[667]	1465
[732]	1466	ENDIF
	1467
[151]	1468	!
[4648]	1469	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated from u\|v_bulk instead
[680]	1470	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
	1471	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
	1472	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
	1473	ENDIF
[667]	1474
[680]	1475	ENDIF
[2232]	1476	!
[4648]	1477	!-- In the following, surface properties can be further initialized with input from static driver
	1478	!-- file.
	1479	!-- At the moment this affects only default surfaces. For example, roughness length or sensible /
	1480	!-- latent heat fluxes can be initialized heterogeneously for default surfaces. Therefore, a generic
	1481	!-- routine from netcdf_data_input_mod is called to read a 2D array.
[4150]	1482	IF ( input_pids_static ) THEN
	1483	!
[4151]	1484	!-- Allocate memory for possible static input
	1485	ALLOCATE( tmp_2d%var(nys:nyn,nxl:nxr) )
	1486	tmp_2d%var = 0.0_wp
	1487	!
[4150]	1488	!-- Open the static input file
[4151]	1489	#if defined( __netcdf )
[4648]	1490	CALL open_read_file( TRIM( input_file_static ) // &
	1491	TRIM( coupling_char ), pids_id )
	1492
[4186]	1493	CALL inquire_num_variables( pids_id, num_var_pids )
[4150]	1494	!
	1495	!-- Allocate memory to store variable names and read them
[4186]	1496	ALLOCATE( vars_pids(1:num_var_pids) )
	1497	CALL inquire_variable_names( pids_id, vars_pids )
[4150]	1498	!
[4648]	1499	!-- Input roughness length.
[4186]	1500	IF ( check_existence( vars_pids, 'z0' ) ) THEN
[4150]	1501	!
	1502	!-- Read _FillValue attribute
[4648]	1503	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, .FALSE., 'z0' )
	1504	!
	1505	!-- Read variable
	1506	CALL get_variable( pids_id, 'z0', tmp_2d%var, nxl, nxr, nys, nyn )
	1507	!
	1508	!-- Initialize roughness length. Note, z0 will be only initialized at default-type surfaces.
	1509	!-- At natural or urban z0 is implicitly initialized by the respective parameter lists.
	1510	!-- Initialize horizontal surface elements.
	1511	CALL init_single_surface_properties( surf_def_h(0)%z0, tmp_2d%var, surf_def_h(0)%ns, &
	1512	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
	1513	!
	1514	!-- Initialize roughness also at vertical surface elements.
	1515	!-- Note, the actual 2D input arrays are only defined on the subdomain. Therefore, pass the
	1516	!-- index arrays with their respective offset values.
	1517	DO l = 0, 3
	1518	CALL init_single_surface_properties( surf_def_v(l)%z0, tmp_2d%var, surf_def_v(l)%ns, &
	1519	tmp_2d%fill, surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1520	surf_def_v(l)%j+surf_def_v(l)%joff )
[4150]	1521	ENDDO
[4648]	1522
[4150]	1523	ENDIF
	1524	!
[4648]	1525	!-- Input surface sensible heat flux.
[4514]	1526	IF ( check_existence( vars_pids, 'shf' ) ) THEN
	1527	!
	1528	!-- Read _FillValue attribute
[4648]	1529	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, .FALSE., 'shf' )
[4514]	1530	!
	1531	!-- Read variable
[4648]	1532	CALL get_variable( pids_id, 'shf', tmp_2d%var, nxl, nxr, nys, nyn )
[4514]	1533	!
[4648]	1534	!-- Initialize heat flux. Note, shf will be only initialized at default-type surfaces. At
	1535	!-- natural or urban shf is implicitly initialized by the respective parameter lists.
[4514]	1536	!-- Initialize horizontal surface elements.
[4648]	1537	CALL init_single_surface_properties( surf_def_h(0)%shf, tmp_2d%var, surf_def_h(0)%ns, &
	1538	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
[4514]	1539	!
	1540	!-- Initialize heat flux also at vertical surface elements.
[4648]	1541	!-- Note, the actual 2D input arrays are only defined on the subdomain. Therefore, pass the
	1542	!-- index arrays with their respective offset values.
[4514]	1543	DO l = 0, 3
[4648]	1544	CALL init_single_surface_properties( surf_def_v(l)%shf, tmp_2d%var, surf_def_v(l)%ns, &
	1545	tmp_2d%fill, surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1546	surf_def_v(l)%j+surf_def_v(l)%joff )
[4514]	1547	ENDDO
	1548
	1549	ENDIF
	1550	!
[4791]	1551	!-- Input surface latent heat flux.
	1552	IF ( humidity ) THEN
	1553	IF ( check_existence( vars_pids, 'qsws' ) ) THEN
[4514]	1554	!
[4791]	1555	!-- Read _FillValue attribute
	1556	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, .FALSE., 'qsws' )
[4514]	1557	!
[4791]	1558	!-- Read variable
	1559	CALL get_variable( pids_id, 'qsws', tmp_2d%var, nxl, nxr, nys, nyn )
[4514]	1560	!
[4791]	1561	!-- Initialize latent heat flux. Note, qsws will be only initialized at default-type surfaces.
	1562	!-- At natural or urban qsws is implicitly initialized by the respective parameter lists.
	1563	!-- Initialize horizontal surface elements.
	1564	CALL init_single_surface_properties( surf_def_h(0)%qsws, tmp_2d%var, surf_def_h(0)%ns,&
	1565	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
[4514]	1566	!
[4791]	1567	!-- Initialize latent heat flux also at vertical surface elements.
	1568	!-- Note, the actual 2D input arrays are only defined on the subdomain. Therefore, pass the
	1569	!-- index arrays with their respective offset values.
	1570	DO l = 0, 3
	1571	CALL init_single_surface_properties( surf_def_v(l)%qsws, tmp_2d%var, &
	1572	surf_def_v(l)%ns, tmp_2d%fill, &
	1573	surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1574	surf_def_v(l)%j+surf_def_v(l)%joff )
	1575	ENDDO
[4514]	1576
[4791]	1577	ENDIF
[4514]	1578	ENDIF
	1579	!
[4791]	1580	!-- Input passive scalar flux.
	1581	IF ( passive_scalar ) THEN
	1582	IF ( check_existence( vars_pids, 'ssws' ) ) THEN
	1583	!
	1584	!-- Read _FillValue attribute
	1585	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, .FALSE., 'ssws' )
	1586	!
	1587	!-- Read variable
	1588	CALL get_variable( pids_id, 'ssws', tmp_2d%var, nxl, nxr, nys, nyn )
	1589	!
	1590	!-- Initialize passive scalar flux. Initialize horizontal surface elements.
	1591	CALL init_single_surface_properties( surf_def_h(0)%ssws, tmp_2d%var, surf_def_h(0)%ns,&
	1592	tmp_2d%fill, surf_def_h(0)%i, surf_def_h(0)%j )
	1593
	1594	DO l = 0, 3
	1595	CALL init_single_surface_properties( surf_def_v(l)%ssws, tmp_2d%var, &
	1596	surf_def_v(l)%ns, tmp_2d%fill, &
	1597	surf_def_v(l)%i+surf_def_v(l)%ioff, &
	1598	surf_def_v(l)%j+surf_def_v(l)%joff )
	1599	ENDDO
	1600
	1601	ENDIF
	1602	ENDIF
	1603	!
[4648]	1604	!-- Additional variables, can be initialized the
[4150]	1605	!-- same way.
[4514]	1606
[4150]	1607	!
[4187]	1608	!-- Finally, close the input file and deallocate temporary arrays
	1609	DEALLOCATE( vars_pids )
[4648]	1610
[4186]	1611	CALL close_input_file( pids_id )
[4151]	1612	#endif
	1613	DEALLOCATE( tmp_2d%var )
[4150]	1614	ENDIF
	1615	!
[4648]	1616	!-- Finally, if random_heatflux is set, disturb shf at horizontal surfaces. Actually, this should be
	1617	!-- done in surface_mod, where all other initializations of surface quantities are done. However,
	1618	!-- this would create a ring dependency, hence, it is done here. Maybe delete disturb_heatflux and
	1619	!-- tranfer the respective code directly into the initialization in surface_mod.
	1620	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[2232]	1621	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[4648]	1622
	1623	IF ( use_surface_fluxes .AND. constant_heatflux .AND. random_heatflux ) THEN
[2232]	1624	IF ( surf_def_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_def_h(0) )
[4671]	1625	IF ( surf_lsm_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_lsm_h(0) )
	1626	IF ( surf_usm_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_usm_h(0) )
[2232]	1627	ENDIF
	1628	ENDIF
[680]	1629
[787]	1630	!
[4648]	1631	!-- Compute total sum of grid points and the mean surface level height for each statistic region.
	1632	!-- These are mainly used for horizontal averaging of turbulence statistics.
	1633	!-- ngp_2dh: number of grid points of a horizontal cross section through the respective statistic
	1634	!-- region
[3747]	1635	!-- ngp_3d: number of grid points of the respective statistic region
[2696]	1636	ngp_2dh_outer_l = 0
	1637	ngp_2dh_outer = 0
	1638	ngp_2dh_s_inner_l = 0
	1639	ngp_2dh_s_inner = 0
	1640	ngp_2dh_l = 0
	1641	ngp_2dh = 0
	1642	ngp_3d_inner_l = 0.0_wp
	1643	ngp_3d_inner = 0
	1644	ngp_3d = 0
	1645	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
	1646
	1647	mean_surface_level_height = 0.0_wp
	1648	mean_surface_level_height_l = 0.0_wp
	1649	!
	1650	!-- To do: New concept for these non-topography grid points!
	1651	DO sr = 0, statistic_regions
	1652	DO i = nxl, nxr
	1653	DO j = nys, nyn
	1654	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
	1655	!
	1656	!-- All xy-grid points
	1657	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1658	!
[4648]	1659	!-- Determine mean surface-level height. In case of downward-facing walls are present,
	1660	!-- more than one surface level exist.
	1661	!-- In this case, use the lowest surface-level height.
	1662	IF ( surf_def_h(0)%start_index(j,i) <= surf_def_h(0)%end_index(j,i) ) THEN
[2696]	1663	m = surf_def_h(0)%start_index(j,i)
	1664	k = surf_def_h(0)%k(m)
[4648]	1665	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) + zw(k-1)
[2696]	1666	ENDIF
[4671]	1667	IF ( surf_lsm_h(0)%start_index(j,i) <= surf_lsm_h(0)%end_index(j,i) ) THEN
	1668	m = surf_lsm_h(0)%start_index(j,i)
	1669	k = surf_lsm_h(0)%k(m)
[4648]	1670	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) + zw(k-1)
[2696]	1671	ENDIF
[4671]	1672	IF ( surf_usm_h(0)%start_index(j,i) <= surf_usm_h(0)%end_index(j,i) ) THEN
	1673	m = surf_usm_h(0)%start_index(j,i)
	1674	k = surf_usm_h(0)%k(m)
[4648]	1675	mean_surface_level_height_l(sr) = mean_surface_level_height_l(sr) + zw(k-1)
[2696]	1676	ENDIF
	1677
	1678	k_surf = k - 1
	1679
	1680	DO k = nzb, nzt+1
	1681	!
	1682	!-- xy-grid points above topography
[4648]	1683	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + &
	1684	MERGE( 1, 0, BTEST( wall_flags_total_0(k,j,i), 24 ) )
[2696]	1685
[4648]	1686	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + &
	1687	MERGE( 1, 0, BTEST( wall_flags_total_0(k,j,i), 22 ) )
[2696]	1688
	1689	ENDDO
	1690	!
	1691	!-- All grid points of the total domain above topography
	1692	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + ( nz - k_surf + 2 )
	1693
	1694
	1695
	1696	ENDIF
	1697	ENDDO
	1698	ENDDO
	1699	ENDDO
[3747]	1700
[2696]	1701	sr = statistic_regions + 1
	1702	#if defined( __parallel )
	1703	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1704	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
	1705	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1706	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, MPI_INTEGER, MPI_SUM, &
[2696]	1707	comm2d, ierr )
	1708	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1709	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), (nz+2)*sr, MPI_INTEGER, &
	1710	MPI_SUM, comm2d, ierr )
[2696]	1711	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1712	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, MPI_SUM, comm2d, &
	1713	ierr )
[2696]	1714	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
	1715	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[4648]	1716	CALL MPI_ALLREDUCE( mean_surface_level_height_l(0), mean_surface_level_height(0), sr, MPI_REAL,&
[2696]	1717	MPI_SUM, comm2d, ierr )
	1718	mean_surface_level_height = mean_surface_level_height / REAL( ngp_2dh )
	1719	#else
	1720	ngp_2dh = ngp_2dh_l
	1721	ngp_2dh_outer = ngp_2dh_outer_l
	1722	ngp_2dh_s_inner = ngp_2dh_s_inner_l
	1723	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
	1724	mean_surface_level_height = mean_surface_level_height_l / REAL( ngp_2dh_l )
	1725	#endif
	1726
[4648]	1727	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
[2696]	1728	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
	1729
	1730	!
[4648]	1731	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics, buoyancy, etc. A
	1732	!-- zero value will occur for cases where all grid points of the respective subdomain lie below the
	1733	!-- surface topography
	1734	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
	1735	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), ngp_3d_inner(:) )
	1736	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
[2696]	1737
[4648]	1738	DEALLOCATE( mean_surface_level_height_l, ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l, &
	1739	ngp_3d_inner_tmp )
[4548]	1740
[2696]	1741	!
[4648]	1742	!-- Initializae 3D offline nesting in COSMO model and read data from
[3347]	1743	!-- external NetCDF file.
	1744	IF ( nesting_offline ) CALL nesting_offl_init
	1745	!
[787]	1746	!-- Initialize quantities for special advections schemes
	1747	CALL init_advec
[680]	1748
[667]	1749	!
[680]	1750	!-- Impose random perturbation on the horizontal velocity field and then
	1751	!-- remove the divergences from the velocity field at the initial stage
[4648]	1752	IF ( create_disturbances .AND. disturbance_energy_limit /= 0.0_wp .AND. &
	1753	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[680]	1754	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
	1755
[4648]	1756	IF ( debug_output ) THEN
	1757	CALL debug_message( 'creating disturbances + applying pressure solver', 'start' )
	1758	ENDIF
[3849]	1759	!
	1760	!-- Needed for both disturb_field and pres
	1761	!$ACC DATA &
	1762	!$ACC CREATE(tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1763	!$ACC COPY(u(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1764	!$ACC COPY(v(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
	1765
[2232]	1766	CALL disturb_field( 'u', tend, u )
	1767	CALL disturb_field( 'v', tend, v )
[1384]	1768
[3849]	1769	!$ACC DATA &
	1770	!$ACC CREATE(d(nzb+1:nzt,nys:nyn,nxl:nxr)) &
	1771	!$ACC COPY(w(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1772	!$ACC COPY(p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1773	!$ACC COPYIN(rho_air(nzb:nzt+1), rho_air_zw(nzb:nzt+1)) &
	1774	!$ACC COPYIN(ddzu(1:nzt+1), ddzw(1:nzt+1)) &
[4346]	1775	!$ACC COPYIN(wall_flags_total_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
[3849]	1776	!$ACC COPYIN(bc_h(0:1)) &
	1777	!$ACC COPYIN(bc_h(0)%i(1:bc_h(0)%ns)) &
	1778	!$ACC COPYIN(bc_h(0)%j(1:bc_h(0)%ns)) &
	1779	!$ACC COPYIN(bc_h(0)%k(1:bc_h(0)%ns)) &
	1780	!$ACC COPYIN(bc_h(1)%i(1:bc_h(1)%ns)) &
	1781	!$ACC COPYIN(bc_h(1)%j(1:bc_h(1)%ns)) &
	1782	!$ACC COPYIN(bc_h(1)%k(1:bc_h(1)%ns))
	1783
[680]	1784	n_sor = nsor_ini
	1785	CALL pres
	1786	n_sor = nsor
[1384]	1787
[3849]	1788	!$ACC END DATA
	1789	!$ACC END DATA
	1790
[4648]	1791	IF ( debug_output ) THEN
	1792	CALL debug_message( 'creating disturbances + applying pressure solver', 'end' )
	1793	ENDIF
[3987]	1794
[680]	1795	ENDIF
	1796
[3294]	1797	IF ( .NOT. ocean_mode ) THEN
[3274]	1798
	1799	ALLOCATE( hyp(nzb:nzt+1) )
	1800	ALLOCATE( d_exner(nzb:nzt+1) )
	1801	ALLOCATE( exner(nzb:nzt+1) )
	1802	ALLOCATE( hyrho(nzb:nzt+1) )
[1849]	1803	!
[3274]	1804	!-- Check temperature in case of too large domain height
	1805	DO k = nzb, nzt+1
[4648]	1806	IF ( ( pt_surface * exner_function( surface_pressure * 100.0_wp ) - g/c_p * zu(k) ) &
	1807	< 0.0_wp ) THEN
	1808	WRITE( message_string, * ) 'absolute temperature < 0.0 at zu(', k, ') = ', zu(k)
[3685]	1809	CALL message( 'init_3d_model', 'PA0142', 1, 2, 0, 6, 0 )
[3274]	1810	ENDIF
	1811	ENDDO
	1812
	1813	!
	1814	!-- Calculate vertical profile of the hydrostatic pressure (hyp)
[4648]	1815	hyp = barometric_formula( zu, pt_surface * exner_function( surface_pressure * 100.0_wp ),&
	1816	surface_pressure * 100.0_wp )
	1817	d_exner = exner_function_invers( hyp )
	1818	exner = 1.0_wp / exner_function_invers( hyp )
	1819	hyrho = ideal_gas_law_rho_pt( hyp, pt_init )
[3274]	1820	!
	1821	!-- Compute reference density
[4648]	1822	rho_surface = ideal_gas_law_rho( surface_pressure * 100.0_wp, &
	1823	pt_surface * exner_function( surface_pressure * 100.0_wp ) )
[3274]	1824
[96]	1825	ENDIF
[1]	1826
	1827	!
	1828	!-- If required, initialize particles
[3159]	1829	IF ( agents_active ) CALL mas_init
	1830	!
[3937]	1831	!-- Initialization of synthetic turbulence generator
	1832	IF ( use_syn_turb_gen ) CALL stg_init
[2696]	1833	!
[3685]	1834	!-- Initializing actions for all other modules
	1835	CALL module_interface_init
[2696]	1836	!
[4648]	1837	!-- Initialize surface layer (done after LSM as roughness length are required for initialization
[3685]	1838	IF ( constant_flux_layer ) CALL init_surface_layer_fluxes
[2977]	1839	!
[3421]	1840	!-- Initialize surface data output
[3685]	1841	IF ( surface_output ) CALL surface_data_output_init
[3472]	1842	!
[4648]	1843	!-- Initialize the ws-scheme.
	1844	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
[3711]	1845	!
	1846	!-- Perform post-initializing checks for all other modules
	1847	CALL module_interface_init_checks
[1]	1848
	1849	!
[4648]	1850	!-- Initialize surface forcing corresponding to large-scale forcing. Therein,
[4548]	1851	!-- initialize heat-fluxes, etc. via datatype. Revise it later!
[4648]	1852	IF ( large_scale_forcing .AND. lsf_surf ) THEN
[4548]	1853	IF ( use_surface_fluxes .AND. constant_heatflux ) THEN
[4648]	1854	CALL ls_forcing_surf( simulated_time )
[4548]	1855	ENDIF
	1856	ENDIF
	1857	!
[4648]	1858	!-- Setting weighting factors for calculation of perturbation pressure and turbulent quantities from
	1859	!-- the RK substeps.
	1860	IF ( TRIM( timestep_scheme ) == 'runge-kutta-3' ) THEN ! for RK3-method
[709]	1861
[1322]	1862	weight_substep(1) = 1._wp/6._wp
	1863	weight_substep(2) = 3._wp/10._wp
	1864	weight_substep(3) = 8._wp/15._wp
[709]	1865
[1322]	1866	weight_pres(1) = 1._wp/3._wp
	1867	weight_pres(2) = 5._wp/12._wp
	1868	weight_pres(3) = 1._wp/4._wp
[709]	1869
[4648]	1870	ELSEIF ( TRIM( timestep_scheme ) == 'runge-kutta-2' ) THEN ! for RK2-method
[709]	1871
[1322]	1872	weight_substep(1) = 1._wp/2._wp
	1873	weight_substep(2) = 1._wp/2._wp
[4648]	1874
[1322]	1875	weight_pres(1) = 1._wp/2._wp
[4648]	1876	weight_pres(2) = 1._wp/2._wp
[709]	1877
[1001]	1878	ELSE ! for Euler-method
[709]	1879
[4648]	1880	weight_substep(1) = 1.0_wp
	1881	weight_pres(1) = 1.0_wp
[709]	1882
[673]	1883	ENDIF
	1884
	1885	!
[1]	1886	!-- Initialize Rayleigh damping factors
[1340]	1887	rdf = 0.0_wp
	1888	rdf_sc = 0.0_wp
	1889	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
[3294]	1890
	1891	IF ( .NOT. ocean_mode ) THEN
[108]	1892	DO k = nzb+1, nzt
	1893	IF ( zu(k) >= rayleigh_damping_height ) THEN
[4648]	1894	rdf(k) = rayleigh_damping_factor * &
	1895	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
	1896	/ ( zu(nzt) - rayleigh_damping_height ) ) &
	1897	)**2
[108]	1898	ENDIF
	1899	ENDDO
	1900	ELSE
[3294]	1901	!
[4648]	1902	!-- In ocean mode, rayleigh damping is applied in the lower part of the model domain
[108]	1903	DO k = nzt, nzb+1, -1
	1904	IF ( zu(k) <= rayleigh_damping_height ) THEN
[4648]	1905	rdf(k) = rayleigh_damping_factor * &
	1906	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
	1907	/ ( rayleigh_damping_height - zu(nzb+1) ) ) &
	1908	)**2
[108]	1909	ENDIF
	1910	ENDDO
	1911	ENDIF
[3294]	1912
[1]	1913	ENDIF
[785]	1914	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
[1]	1915
	1916	!
[4648]	1917	!-- Initialize the starting level and the vertical smoothing factor used for the external pressure
	1918	!-- gradient
[1340]	1919	dp_smooth_factor = 1.0_wp
[240]	1920	IF ( dp_external ) THEN
	1921	!
[4648]	1922	!-- Set the starting level dp_level_ind_b only if it has not been set before (e.g. in init_grid).
[240]	1923	IF ( dp_level_ind_b == 0 ) THEN
	1924	ind_array = MINLOC( ABS( dp_level_b - zu ) )
[4648]	1925	dp_level_ind_b = ind_array(1) - 1 + nzb
[240]	1926	! MINLOC uses lower array bound 1
	1927	ENDIF
	1928	IF ( dp_smooth ) THEN
[1340]	1929	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
[240]	1930	DO k = dp_level_ind_b+1, nzt
[4648]	1931	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
	1932	( REAL( k - dp_level_ind_b, KIND=wp ) / &
	1933	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
[240]	1934	ENDDO
	1935	ENDIF
	1936	ENDIF
	1937
	1938	!
[4648]	1939	!-- Initialize damping zone for the potential temperature in case of non-cyclic lateral boundaries.
	1940	!-- The damping zone has the maximum value at the inflow boundary and decreases to zero at
	1941	!-- pt_damping_width.
[1340]	1942	ptdf_x = 0.0_wp
	1943	ptdf_y = 0.0_wp
[1159]	1944	IF ( bc_lr_dirrad ) THEN
[996]	1945	DO i = nxl, nxr
[978]	1946	IF ( ( i * dx ) < pt_damping_width ) THEN
[4648]	1947	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
	1948	REAL( pt_damping_width - i * dx, KIND=wp ) / &
	1949	REAL( pt_damping_width, KIND=wp ) ) )**2
	1950	ENDIF
[73]	1951	ENDDO
[1159]	1952	ELSEIF ( bc_lr_raddir ) THEN
[996]	1953	DO i = nxl, nxr
[978]	1954	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
[4648]	1955	ptdf_x(i) = pt_damping_factor * SIN( pi * 0.5_wp * &
	1956	( ( i - nx ) * dx + pt_damping_width ) / &
	1957	REAL( pt_damping_width, KIND=wp ) )**2
[73]	1958	ENDIF
[4648]	1959	ENDDO
[1159]	1960	ELSEIF ( bc_ns_dirrad ) THEN
[996]	1961	DO j = nys, nyn
[978]	1962	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
[4648]	1963	ptdf_y(j) = pt_damping_factor * SIN( pi * 0.5_wp * &
	1964	( ( j - ny ) * dy + pt_damping_width ) / &
	1965	REAL( pt_damping_width, KIND=wp ) )**2
[1]	1966	ENDIF
[4648]	1967	ENDDO
[1159]	1968	ELSEIF ( bc_ns_raddir ) THEN
[996]	1969	DO j = nys, nyn
[978]	1970	IF ( ( j * dy ) < pt_damping_width ) THEN
[4648]	1971	ptdf_y(j) = pt_damping_factor * SIN( pi * 0.5_wp * &
	1972	( pt_damping_width - j * dy ) / &
	1973	REAL( pt_damping_width, KIND=wp ) )**2
[1]	1974	ENDIF
[73]	1975	ENDDO
[1]	1976	ENDIF
[51]	1977
[1]	1978	!
[4648]	1979	!-- Input binary data file is not needed anymore. This line must be placed after call of user_init!
[1]	1980	CALL close_file( 13 )
[2934]	1981	!
[4648]	1982	!-- In case of nesting, put an barrier to assure that all parent and child domains finished
	1983	!-- initialization.
[2934]	1984	#if defined( __parallel )
	1985	IF ( nested_run ) CALL MPI_BARRIER( MPI_COMM_WORLD, ierr )
	1986	#endif
[1]	1987
[2934]	1988
[3987]	1989	CALL location_message( 'model initialization', 'finished' )
[1]	1990
	1991	END SUBROUTINE init_3d_model

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source: palm/trunk/SOURCE/init_3d_model.f90 @ 4847

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