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init_3d_model.f90 @ 4187

Last change on this file since 4187 was 4187, checked in by suehring, 5 years ago

radiation: Take external radiation input from root domain dynamic file if no dynamic input file is provided for each nested domain; radiation: Combine MPI_ALLREDUCE calls to reduce latency; land_surface + plant_canopy: Give specific error numbers; land-surface: Adjust error messages for local checks; init_3d_model: Deallocate temporary string array for netcdf-data input since it may be re-used in other modules for different input files

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/palm/branches/chemistry/SOURCE/init_3d_model.f90	2047-3190,3218-3297
/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
/palm/branches/rans/SOURCE/init_3d_model.f90	2078-3128
/palm/branches/resler/SOURCE/init_3d_model.f90	2023-3605
/palm/branches/salsa/SOURCE/init_3d_model.f90	2503-3581

File size: 81.0 KB

Rev	Line
[1682]	1	!> @file init_3d_model.f90
[2000]	2	!------------------------------------------------------------------------------!
[2696]	3	! This file is part of the PALM model system.
[1036]	4	!
[2000]	5	! PALM is free software: you can redistribute it and/or modify it under the
	6	! terms of the GNU General Public License as published by the Free Software
	7	! Foundation, either version 3 of the License, or (at your option) any later
	8	! version.
[1036]	9	!
	10	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
	11	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
	12	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
	13	!
	14	! You should have received a copy of the GNU General Public License along with
	15	! PALM. If not, see <http://www.gnu.org/licenses/>.
	16	!
[3648]	17	! Copyright 1997-2019 Leibniz Universitaet Hannover
[2000]	18	!------------------------------------------------------------------------------!
[1036]	19	!
[254]	20	! Current revisions:
[732]	21	! ------------------
[2233]	22	!
[3589]	23	!
[2233]	24	! Former revisions:
	25	! -----------------
	26	! $Id: init_3d_model.f90 4187 2019-08-26 12:43:15Z suehring $
[4187]	27	! Deallocate temporary string array since it may be re-used to read different
	28	! input data in other modules
	29	!
	30	! 4186 2019-08-23 16:06:14Z suehring
[4186]	31	! Design change, use variables defined in netcdf_data_input_mod to read netcd
	32	! variables rather than define local ones.
	33	!
	34	! 4185 2019-08-23 13:49:38Z oliver.maas
[4185]	35	! For initializing_actions = ' cyclic_fill':
	36	! Overwrite u_init, v_init, pt_init, q_init and s_init with the
	37	! (temporally) and horizontally averaged vertical profiles from the end
	38	! of the prerun, because these profiles shall be used as the basic state
	39	! for the rayleigh damping and the pt_damping.
	40	!
	41	! 4182 2019-08-22 15:20:23Z scharf
[4182]	42	! Corrected "Former revisions" section
	43	!
	44	! 4168 2019-08-16 13:50:17Z suehring
[4168]	45	! Replace function get_topography_top_index by topo_top_ind
	46	!
	47	! 4151 2019-08-09 08:24:30Z suehring
[4151]	48	! Add netcdf directive around input calls (fix for last commit)
	49	!
	50	! 4150 2019-08-08 20:00:47Z suehring
[4150]	51	! Input of additional surface variables independent on land- or urban-surface
	52	! model
	53	!
	54	! 4131 2019-08-02 11:06:18Z monakurppa
[4131]	55	! Allocate sums and sums_l to allow profile output for salsa variables.
	56	!
	57	! 4130 2019-08-01 13:04:13Z suehring
[4130]	58	! Effectively reduce 3D initialization to 1D initial profiles. This is because
	59	! 3D initialization produces structures in the w-component that are correlated
	60	! with the processor grid for some unknown reason
	61	!
	62	! 4090 2019-07-11 15:06:47Z Giersch
[4090]	63	! Unused variables removed
	64	!
	65	! 4088 2019-07-11 13:57:56Z Giersch
[4088]	66	! Pressure and density profile calculations revised using basic functions
	67	!
	68	! 4048 2019-06-21 21:00:21Z knoop
[4028]	69	! Further modularization of particle code components
	70	!
	71	! 4017 2019-06-06 12:16:46Z schwenkel
[3987]	72	! Convert most location messages to debug messages to reduce output in
	73	! job logfile to a minimum
	74	!
	75	!
[3939]	76	! unused variable removed
	77	!
	78	! 3937 2019-04-29 15:09:07Z suehring
[3937]	79	! Move initialization of synthetic turbulence generator behind initialization
	80	! of offline nesting. Remove call for stg_adjust, as this is now already done
	81	! in stg_init.
	82	!
	83	! 3900 2019-04-16 15:17:43Z suehring
[3900]	84	! Fix problem with LOD = 2 initialization
	85	!
	86	! 3885 2019-04-11 11:29:34Z kanani
[3885]	87	! Changes related to global restructuring of location messages and introduction
	88	! of additional debug messages
	89	!
	90	! 3849 2019-04-01 16:35:16Z knoop
[3747]	91	! Move initialization of rmask before initializing user_init_arrays
	92	!
	93	! 3711 2019-01-31 13:44:26Z knoop
[3711]	94	! Introduced module_interface_init_checks for post-init checks in modules
	95	!
	96	! 3700 2019-01-26 17:03:42Z knoop
[3685]	97	! Some interface calls moved to module_interface + cleanup
	98	!
	99	! 3648 2019-01-02 16:35:46Z suehring
[3648]	100	! Rename subroutines for surface-data output
[3569]	101	!
[4182]	102	! Revision 1.1 1998/03/09 16:22:22 raasch
	103	! Initial revision
	104	!
	105	!
[1]	106	! Description:
	107	! ------------
[1682]	108	!> Allocation of arrays and initialization of the 3D model via
	109	!> a) pre-run the 1D model
	110	!> or
	111	!> b) pre-set constant linear profiles
	112	!> or
	113	!> c) read values of a previous run
[1]	114	!------------------------------------------------------------------------------!
[1682]	115	SUBROUTINE init_3d_model
[1]	116
[3298]	117
[667]	118	USE advec_ws
[1320]	119
[1]	120	USE arrays_3d
[1849]	121
[3274]	122	USE basic_constants_and_equations_mod, &
[4090]	123	ONLY: c_p, g, l_v, pi, exner_function, exner_function_invers, &
[3274]	124	ideal_gas_law_rho, ideal_gas_law_rho_pt, barometric_formula
	125
	126	USE bulk_cloud_model_mod, &
[3685]	127	ONLY: bulk_cloud_model
[3274]	128
[3298]	129	USE chem_modules, &
[3685]	130	ONLY: max_pr_cs ! ToDo: this dependency needs to be removed cause it is ugly #new_dom
[3298]	131
[1]	132	USE control_parameters
[3298]	133
[1320]	134	USE grid_variables, &
[2037]	135	ONLY: dx, dy, ddx2_mg, ddy2_mg
[2817]	136
[1]	137	USE indices
[3469]	138
[1320]	139	USE kinds
[1496]	140
[2320]	141	USE lsf_nudging_mod, &
[3685]	142	ONLY: ls_forcing_surf
[1849]	143
[2338]	144	USE model_1d_mod, &
[3241]	145	ONLY: init_1d_model, l1d, u1d, v1d
[2338]	146
[3685]	147	USE module_interface, &
[3711]	148	ONLY: module_interface_init_arrays, &
	149	module_interface_init, &
	150	module_interface_init_checks
[3685]	151
[3159]	152	USE multi_agent_system_mod, &
	153	ONLY: agents_active, mas_init
	154
[1783]	155	USE netcdf_interface, &
[3700]	156	ONLY: dots_max
[2696]	157
[2906]	158	USE netcdf_data_input_mod, &
[4150]	159	ONLY: char_fill, &
	160	check_existence, &
	161	close_input_file, &
	162	get_attribute, &
	163	get_variable, &
	164	init_3d, &
	165	input_pids_static, &
	166	inquire_num_variables, &
	167	inquire_variable_names, &
	168	input_file_static, &
	169	netcdf_data_input_init_3d, &
[4186]	170	num_var_pids, &
[4150]	171	open_read_file, &
[4186]	172	pids_id, &
	173	real_2d, &
	174	vars_pids
[4150]	175
[3347]	176	USE nesting_offl_mod, &
	177	ONLY: nesting_offl_init
[3294]	178
[1]	179	USE pegrid
[3298]	180
[3524]	181	#if defined( __parallel )
[2934]	182	USE pmc_interface, &
	183	ONLY: nested_run
[3524]	184	#endif
[2934]	185
[1320]	186	USE random_function_mod
[3685]	187
[1400]	188	USE random_generator_parallel, &
[2172]	189	ONLY: init_parallel_random_generator
[3685]	190
[2894]	191	USE read_restart_data_mod, &
[3685]	192	ONLY: rrd_read_parts_of_global, rrd_local
	193
[1320]	194	USE statistics, &
[1738]	195	ONLY: hom, hom_sum, mean_surface_level_height, pr_palm, rmask, &
[1833]	196	statistic_regions, sums, sums_divnew_l, sums_divold_l, sums_l, &
[2277]	197	sums_l_l, sums_wsts_bc_l, ts_value, &
[1833]	198	weight_pres, weight_substep
[2259]	199
	200	USE synthetic_turbulence_generator_mod, &
[3939]	201	ONLY: stg_init, use_syn_turb_gen
[3685]	202
[1691]	203	USE surface_layer_fluxes_mod, &
	204	ONLY: init_surface_layer_fluxes
[2232]	205
	206	USE surface_mod, &
[4150]	207	ONLY : init_single_surface_properties, &
	208	init_surface_arrays, &
	209	init_surfaces, &
	210	surf_def_h, &
	211	surf_def_v, &
	212	surf_lsm_h, &
[4168]	213	surf_usm_h
[3685]	214
[3849]	215	#if defined( _OPENACC )
	216	USE surface_mod, &
	217	ONLY : bc_h
	218	#endif
	219
[3648]	220	USE surface_data_output_mod, &
	221	ONLY: surface_data_output_init
[3685]	222
[2007]	223	USE transpose_indices
[1]	224
	225	IMPLICIT NONE
[4150]	226
	227	INTEGER(iwp) :: i !< grid index in x direction
	228	INTEGER(iwp) :: ind_array(1) !< dummy used to determine start index for external pressure forcing
	229	INTEGER(iwp) :: j !< grid index in y direction
	230	INTEGER(iwp) :: k !< grid index in z direction
	231	INTEGER(iwp) :: k_surf !< surface level index
	232	INTEGER(iwp) :: l !< running index over surface orientation
	233	INTEGER(iwp) :: m !< index of surface element in surface data type
	234	INTEGER(iwp) :: nz_u_shift !< topography-top index on u-grid, used to vertically shift initial profiles
	235	INTEGER(iwp) :: nz_v_shift !< topography-top index on v-grid, used to vertically shift initial profiles
	236	INTEGER(iwp) :: nz_w_shift !< topography-top index on w-grid, used to vertically shift initial profiles
	237	INTEGER(iwp) :: nz_s_shift !< topography-top index on scalar-grid, used to vertically shift initial profiles
	238	INTEGER(iwp) :: nz_u_shift_l !< topography-top index on u-grid, used to vertically shift initial profiles
	239	INTEGER(iwp) :: nz_v_shift_l !< topography-top index on v-grid, used to vertically shift initial profiles
	240	INTEGER(iwp) :: nz_w_shift_l !< topography-top index on w-grid, used to vertically shift initial profiles
	241	INTEGER(iwp) :: nz_s_shift_l !< topography-top index on scalar-grid, used to vertically shift initial profiles
	242	INTEGER(iwp) :: nzt_l !< index of top PE boundary for multigrid level
	243	INTEGER(iwp) :: sr !< index of statistic region
[1]	244
[3547]	245	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !< toal number of horizontal grid points in statistical region on subdomain
[1]	246
[3547]	247	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !< number of horizontal non-wall bounded grid points on subdomain
	248	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !< number of horizontal non-topography grid points on subdomain
[1]	249
[4150]	250
	251
[3182]	252	REAL(wp), DIMENSION(:), ALLOCATABLE :: init_l !< dummy array used for averaging 3D data to obtain inital profiles
[2037]	253	REAL(wp), DIMENSION(:), ALLOCATABLE :: p_hydrostatic !< hydrostatic pressure
	254
	255	REAL(wp) :: dx_l !< grid spacing along x on different multigrid level
	256	REAL(wp) :: dy_l !< grid spacing along y on different multigrid level
	257
[3547]	258	REAL(wp), DIMENSION(1:3) :: volume_flow_area_l !< area of lateral and top model domain surface on local subdomain
	259	REAL(wp), DIMENSION(1:3) :: volume_flow_initial_l !< initial volume flow into model domain
[1]	260
[3547]	261	REAL(wp), DIMENSION(:), ALLOCATABLE :: mean_surface_level_height_l !< mean surface level height on subdomain
	262	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !< total number of non-topography grid points on subdomain
	263	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !< total number of non-topography grid points
[1]	264
[4150]	265	TYPE(real_2d) :: tmp_2d !< temporary variable to input additional surface-data from static file
	266
[3987]	267	CALL location_message( 'model initialization', 'start' )
	268
	269	IF ( debug_output ) CALL debug_message( 'allocating arrays', 'start' )
[1]	270	!
	271	!-- Allocate arrays
[1788]	272	ALLOCATE( mean_surface_level_height(0:statistic_regions), &
	273	mean_surface_level_height_l(0:statistic_regions), &
	274	ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
	275	ngp_3d(0:statistic_regions), &
	276	ngp_3d_inner(0:statistic_regions), &
	277	ngp_3d_inner_l(0:statistic_regions), &
	278	ngp_3d_inner_tmp(0:statistic_regions), &
	279	sums_divnew_l(0:statistic_regions), &
[1]	280	sums_divold_l(0:statistic_regions) )
[1195]	281	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
[1788]	282	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
	283	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
	284	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
	285	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
	286	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
[4131]	287	sums(nzb:nzt+1,pr_palm+max_pr_user+max_pr_cs+max_pr_salsa), &
	288	sums_l(nzb:nzt+1,pr_palm+max_pr_user+max_pr_cs+max_pr_salsa,0:threads_per_task-1), &
[1788]	289	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
[3700]	290	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions) )
	291	ALLOCATE( ts_value(dots_max,0:statistic_regions) )
[978]	292	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
[1]	293
[1788]	294	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
	295	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1010]	296	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	297
[2696]	298	ALLOCATE( pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1788]	299	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	300	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	301	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	302	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	303	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	304	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	305	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	306	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	307	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	308	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1788]	309	IF ( .NOT. neutral ) THEN
[1032]	310	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	311	ENDIF
[673]	312	!
[3747]	313	!-- Pre-set masks for regional statistics. Default is the total model domain.
	314	!-- Ghost points are excluded because counting values at the ghost boundaries
	315	!-- would bias the statistics
	316	rmask = 1.0_wp
	317	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
	318	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
	319	!
[707]	320	!-- Following array is required for perturbation pressure within the iterative
	321	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
	322	!-- the weighted average of the substeps and cannot be used in the Poisson
	323	!-- solver.
	324	IF ( psolver == 'sor' ) THEN
	325	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1575]	326	ELSEIF ( psolver(1:9) == 'multigrid' ) THEN
[707]	327	!
	328	!-- For performance reasons, multigrid is using one ghost layer only
	329	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[673]	330	ENDIF
[1]	331
[1111]	332	!
	333	!-- Array for storing constant coeffficients of the tridiagonal solver
	334	IF ( psolver == 'poisfft' ) THEN
[1212]	335	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
[1111]	336	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
	337	ENDIF
	338
[1960]	339	IF ( humidity ) THEN
[1]	340	!
[1960]	341	!-- 3D-humidity
[1788]	342	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	343	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[3011]	344	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	345	vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	346	ENDIF
[1960]	347
	348	IF ( passive_scalar ) THEN
[1]	349
[1960]	350	!
	351	!-- 3D scalar arrays
	352	ALLOCATE( s_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	353	s_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	354	s_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[3636]	355
[1960]	356	ENDIF
	357
[1]	358	!
[3302]	359	!-- Allocate and set 1d-profiles for Stokes drift velocity. It may be set to
	360	!-- non-zero values later in ocean_init
	361	ALLOCATE( u_stokes_zu(nzb:nzt+1), u_stokes_zw(nzb:nzt+1), &
	362	v_stokes_zu(nzb:nzt+1), v_stokes_zw(nzb:nzt+1) )
	363	u_stokes_zu(:) = 0.0_wp
	364	u_stokes_zw(:) = 0.0_wp
	365	v_stokes_zu(:) = 0.0_wp
	366	v_stokes_zw(:) = 0.0_wp
	367
	368	!
[2037]	369	!-- Allocation of anelastic and Boussinesq approximation specific arrays
	370	ALLOCATE( p_hydrostatic(nzb:nzt+1) )
	371	ALLOCATE( rho_air(nzb:nzt+1) )
	372	ALLOCATE( rho_air_zw(nzb:nzt+1) )
	373	ALLOCATE( drho_air(nzb:nzt+1) )
	374	ALLOCATE( drho_air_zw(nzb:nzt+1) )
	375	!
[4088]	376	!-- Density profile calculation for anelastic and Boussinesq approximation
	377	!-- In case of a Boussinesq approximation, a constant density is calculated
	378	!-- mainly for output purposes. This density do not need to be considered
	379	!-- in the model's system of equations.
	380	IF ( TRIM( approximation ) == 'anelastic' ) THEN
[2037]	381	DO k = nzb, nzt+1
[4088]	382	p_hydrostatic(k) = barometric_formula(zu(k), pt_surface * &
	383	exner_function(surface_pressure * 100.0_wp), &
	384	surface_pressure * 100.0_wp)
	385
	386	rho_air(k) = ideal_gas_law_rho_pt(p_hydrostatic(k), pt_init(k))
[2037]	387	ENDDO
[4088]	388
[2037]	389	DO k = nzb, nzt
	390	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
	391	ENDDO
[4088]	392
[2037]	393	rho_air_zw(nzt+1) = rho_air_zw(nzt) &
	394	+ 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
[4088]	395
[2037]	396	ELSE
[2252]	397	DO k = nzb, nzt+1
[4088]	398	p_hydrostatic(k) = barometric_formula(zu(nzb), pt_surface * &
	399	exner_function(surface_pressure * 100.0_wp), &
	400	surface_pressure * 100.0_wp)
	401
	402	rho_air(k) = ideal_gas_law_rho_pt(p_hydrostatic(k), pt_init(nzb))
[2252]	403	ENDDO
[4088]	404
[2252]	405	DO k = nzb, nzt
	406	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
	407	ENDDO
[4088]	408
[2252]	409	rho_air_zw(nzt+1) = rho_air_zw(nzt) &
	410	+ 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
[4088]	411
[2037]	412	ENDIF
[2696]	413	!
[2037]	414	!-- compute the inverse density array in order to avoid expencive divisions
	415	drho_air = 1.0_wp / rho_air
	416	drho_air_zw = 1.0_wp / rho_air_zw
	417
	418	!
	419	!-- Allocation of flux conversion arrays
	420	ALLOCATE( heatflux_input_conversion(nzb:nzt+1) )
	421	ALLOCATE( waterflux_input_conversion(nzb:nzt+1) )
	422	ALLOCATE( momentumflux_input_conversion(nzb:nzt+1) )
	423	ALLOCATE( heatflux_output_conversion(nzb:nzt+1) )
	424	ALLOCATE( waterflux_output_conversion(nzb:nzt+1) )
	425	ALLOCATE( momentumflux_output_conversion(nzb:nzt+1) )
	426
	427	!
	428	!-- calculate flux conversion factors according to approximation and in-/output mode
	429	DO k = nzb, nzt+1
	430
	431	IF ( TRIM( flux_input_mode ) == 'kinematic' ) THEN
	432	heatflux_input_conversion(k) = rho_air_zw(k)
	433	waterflux_input_conversion(k) = rho_air_zw(k)
	434	momentumflux_input_conversion(k) = rho_air_zw(k)
	435	ELSEIF ( TRIM( flux_input_mode ) == 'dynamic' ) THEN
[3274]	436	heatflux_input_conversion(k) = 1.0_wp / c_p
[2037]	437	waterflux_input_conversion(k) = 1.0_wp / l_v
	438	momentumflux_input_conversion(k) = 1.0_wp
	439	ENDIF
	440
	441	IF ( TRIM( flux_output_mode ) == 'kinematic' ) THEN
	442	heatflux_output_conversion(k) = drho_air_zw(k)
	443	waterflux_output_conversion(k) = drho_air_zw(k)
	444	momentumflux_output_conversion(k) = drho_air_zw(k)
	445	ELSEIF ( TRIM( flux_output_mode ) == 'dynamic' ) THEN
[3274]	446	heatflux_output_conversion(k) = c_p
[2037]	447	waterflux_output_conversion(k) = l_v
	448	momentumflux_output_conversion(k) = 1.0_wp
	449	ENDIF
	450
	451	IF ( .NOT. humidity ) THEN
	452	waterflux_input_conversion(k) = 1.0_wp
	453	waterflux_output_conversion(k) = 1.0_wp
	454	ENDIF
	455
	456	ENDDO
	457
	458	!
	459	!-- In case of multigrid method, compute grid lengths and grid factors for the
	460	!-- grid levels with respective density on each grid
	461	IF ( psolver(1:9) == 'multigrid' ) THEN
	462
	463	ALLOCATE( ddx2_mg(maximum_grid_level) )
	464	ALLOCATE( ddy2_mg(maximum_grid_level) )
	465	ALLOCATE( dzu_mg(nzb+1:nzt+1,maximum_grid_level) )
	466	ALLOCATE( dzw_mg(nzb+1:nzt+1,maximum_grid_level) )
	467	ALLOCATE( f1_mg(nzb+1:nzt,maximum_grid_level) )
	468	ALLOCATE( f2_mg(nzb+1:nzt,maximum_grid_level) )
	469	ALLOCATE( f3_mg(nzb+1:nzt,maximum_grid_level) )
	470	ALLOCATE( rho_air_mg(nzb:nzt+1,maximum_grid_level) )
	471	ALLOCATE( rho_air_zw_mg(nzb:nzt+1,maximum_grid_level) )
	472
	473	dzu_mg(:,maximum_grid_level) = dzu
	474	rho_air_mg(:,maximum_grid_level) = rho_air
	475	!
	476	!-- Next line to ensure an equally spaced grid.
	477	dzu_mg(1,maximum_grid_level) = dzu(2)
	478	rho_air_mg(nzb,maximum_grid_level) = rho_air(nzb) + &
	479	(rho_air(nzb) - rho_air(nzb+1))
	480
	481	dzw_mg(:,maximum_grid_level) = dzw
	482	rho_air_zw_mg(:,maximum_grid_level) = rho_air_zw
	483	nzt_l = nzt
	484	DO l = maximum_grid_level-1, 1, -1
	485	dzu_mg(nzb+1,l) = 2.0_wp * dzu_mg(nzb+1,l+1)
	486	dzw_mg(nzb+1,l) = 2.0_wp * dzw_mg(nzb+1,l+1)
	487	rho_air_mg(nzb,l) = rho_air_mg(nzb,l+1) + (rho_air_mg(nzb,l+1) - rho_air_mg(nzb+1,l+1))
	488	rho_air_zw_mg(nzb,l) = rho_air_zw_mg(nzb,l+1) + (rho_air_zw_mg(nzb,l+1) - rho_air_zw_mg(nzb+1,l+1))
	489	rho_air_mg(nzb+1,l) = rho_air_mg(nzb+1,l+1)
	490	rho_air_zw_mg(nzb+1,l) = rho_air_zw_mg(nzb+1,l+1)
	491	nzt_l = nzt_l / 2
	492	DO k = 2, nzt_l+1
	493	dzu_mg(k,l) = dzu_mg(2k-2,l+1) + dzu_mg(2k-1,l+1)
	494	dzw_mg(k,l) = dzw_mg(2k-2,l+1) + dzw_mg(2k-1,l+1)
	495	rho_air_mg(k,l) = rho_air_mg(2*k-1,l+1)
	496	rho_air_zw_mg(k,l) = rho_air_zw_mg(2*k-1,l+1)
	497	ENDDO
	498	ENDDO
	499
	500	nzt_l = nzt
	501	dx_l = dx
	502	dy_l = dy
	503	DO l = maximum_grid_level, 1, -1
	504	ddx2_mg(l) = 1.0_wp / dx_l**2
	505	ddy2_mg(l) = 1.0_wp / dy_l**2
	506	DO k = nzb+1, nzt_l
	507	f2_mg(k,l) = rho_air_zw_mg(k,l) / ( dzu_mg(k+1,l) * dzw_mg(k,l) )
	508	f3_mg(k,l) = rho_air_zw_mg(k-1,l) / ( dzu_mg(k,l) * dzw_mg(k,l) )
	509	f1_mg(k,l) = 2.0_wp * ( ddx2_mg(l) + ddy2_mg(l) ) &
	510	* rho_air_mg(k,l) + f2_mg(k,l) + f3_mg(k,l)
	511	ENDDO
	512	nzt_l = nzt_l / 2
	513	dx_l = dx_l * 2.0_wp
	514	dy_l = dy_l * 2.0_wp
	515	ENDDO
	516
	517	ENDIF
	518
	519	!
[1299]	520	!-- 1D-array for large scale subsidence velocity
[1361]	521	IF ( .NOT. ALLOCATED( w_subs ) ) THEN
	522	ALLOCATE ( w_subs(nzb:nzt+1) )
	523	w_subs = 0.0_wp
	524	ENDIF
[1299]	525
	526	!
[106]	527	!-- Arrays to store velocity data from t-dt and the phase speeds which
	528	!-- are needed for radiation boundary conditions
[3182]	529	IF ( bc_radiation_l ) THEN
[1788]	530	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
	531	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
[667]	532	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
[73]	533	ENDIF
[3182]	534	IF ( bc_radiation_r ) THEN
[1788]	535	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	536	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
[667]	537	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
[73]	538	ENDIF
[3182]	539	IF ( bc_radiation_l .OR. bc_radiation_r ) THEN
[1788]	540	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
[667]	541	c_w(nzb:nzt+1,nysg:nyng) )
[106]	542	ENDIF
[3182]	543	IF ( bc_radiation_s ) THEN
[1788]	544	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
	545	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
[667]	546	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
[73]	547	ENDIF
[3182]	548	IF ( bc_radiation_n ) THEN
[1788]	549	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	550	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
[667]	551	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
[73]	552	ENDIF
[3182]	553	IF ( bc_radiation_s .OR. bc_radiation_n ) THEN
[1788]	554	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
[667]	555	c_w(nzb:nzt+1,nxlg:nxrg) )
[106]	556	ENDIF
[3182]	557	IF ( bc_radiation_l .OR. bc_radiation_r .OR. bc_radiation_s .OR. &
	558	bc_radiation_n ) THEN
[978]	559	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
	560	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
	561	ENDIF
[73]	562
	563	!
[1]	564	!-- Initial assignment of the pointers
[1032]	565	IF ( .NOT. neutral ) THEN
	566	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
	567	ELSE
	568	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
	569	ENDIF
[1001]	570	u => u_1; u_p => u_2; tu_m => u_3
	571	v => v_1; v_p => v_2; tv_m => v_3
	572	w => w_1; w_p => w_2; tw_m => w_3
[1]	573
[1960]	574	IF ( humidity ) THEN
[1001]	575	q => q_1; q_p => q_2; tq_m => q_3
[3274]	576	vpt => vpt_1
[1001]	577	ENDIF
[1960]	578
	579	IF ( passive_scalar ) THEN
	580	s => s_1; s_p => s_2; ts_m => s_3
	581	ENDIF
[1]	582
	583	!
[2696]	584	!-- Initialize surface arrays
[2232]	585	CALL init_surface_arrays
	586	!
[3294]	587	!-- Allocate arrays for other modules
[3685]	588	CALL module_interface_init_arrays
[1551]	589
[1914]	590
[2320]	591	!
[709]	592	!-- Allocate arrays containing the RK coefficient for calculation of
	593	!-- perturbation pressure and turbulent fluxes. At this point values are
	594	!-- set for pressure calculation during initialization (where no timestep
	595	!-- is done). Further below the values needed within the timestep scheme
	596	!-- will be set.
[1788]	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
[673]	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.
	611	!-- This is necessary because they may not yet have been initialized when they
	612	!-- are called from flow_statistics (or - depending on the chosen model run -
	613	!-- are never initialized)
	614	sums_divnew_l = 0.0_wp
	615	sums_divold_l = 0.0_wp
	616	sums_l_l = 0.0_wp
	617	sums_wsts_bc_l = 0.0_wp
[3182]	618
[1918]	619	!
[1]	620	!-- Initialize model variables
[1788]	621	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[328]	622	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[1]	623	!
[2696]	624	!-- Initialization with provided input data derived from larger-scale model
	625	IF ( INDEX( initializing_actions, 'inifor' ) /= 0 ) THEN
[3987]	626	IF ( debug_output ) CALL debug_message( 'initializing with INIFOR', 'start' )
[2696]	627	!
[3051]	628	!-- Read initial 1D profiles or 3D data from NetCDF file, depending
	629	!-- on the provided level-of-detail.
[2696]	630	!-- At the moment, only u, v, w, pt and q are provided.
	631	CALL netcdf_data_input_init_3d
	632	!
[3182]	633	!-- Please note, Inifor provides data from nzb+1 to nzt.
	634	!-- Bottom and top boundary conditions for Inifor profiles are already
	635	!-- set (just after reading), so that this is not necessary here.
	636	!-- Depending on the provided level-of-detail, initial Inifor data is
	637	!-- either stored on data type (lod=1), or directly on 3D arrays (lod=2).
	638	!-- In order to obtain also initial profiles in case of lod=2 (which
	639	!-- is required for e.g. damping), average over 3D data.
	640	IF( init_3d%lod_u == 1 ) THEN
	641	u_init = init_3d%u_init
	642	ELSEIF( init_3d%lod_u == 2 ) THEN
	643	ALLOCATE( init_l(nzb:nzt+1) )
	644	DO k = nzb, nzt+1
	645	init_l(k) = SUM( u(k,nys:nyn,nxl:nxr) )
	646	ENDDO
	647	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
[1384]	648
[3182]	649	#if defined( __parallel )
	650	CALL MPI_ALLREDUCE( init_l, u_init, nzt+1-nzb+1, &
	651	MPI_REAL, MPI_SUM, comm2d, ierr )
	652	#else
	653	u_init = init_l
	654	#endif
	655	DEALLOCATE( init_l )
[3051]	656
[2696]	657	ENDIF
[3182]	658
	659	IF( init_3d%lod_v == 1 ) THEN
	660	v_init = init_3d%v_init
	661	ELSEIF( init_3d%lod_v == 2 ) THEN
	662	ALLOCATE( init_l(nzb:nzt+1) )
	663	DO k = nzb, nzt+1
	664	init_l(k) = SUM( v(k,nys:nyn,nxl:nxr) )
	665	ENDDO
	666	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
[2696]	667
[3182]	668	#if defined( __parallel )
	669	CALL MPI_ALLREDUCE( init_l, v_init, nzt+1-nzb+1, &
	670	MPI_REAL, MPI_SUM, comm2d, ierr )
	671	#else
	672	v_init = init_l
	673	#endif
	674	DEALLOCATE( init_l )
	675	ENDIF
	676	IF( .NOT. neutral ) THEN
	677	IF( init_3d%lod_pt == 1 ) THEN
	678	pt_init = init_3d%pt_init
	679	ELSEIF( init_3d%lod_pt == 2 ) THEN
	680	ALLOCATE( init_l(nzb:nzt+1) )
	681	DO k = nzb, nzt+1
	682	init_l(k) = SUM( pt(k,nys:nyn,nxl:nxr) )
	683	ENDDO
	684	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
	685
	686	#if defined( __parallel )
	687	CALL MPI_ALLREDUCE( init_l, pt_init, nzt+1-nzb+1, &
	688	MPI_REAL, MPI_SUM, comm2d, ierr )
	689	#else
	690	pt_init = init_l
	691	#endif
	692	DEALLOCATE( init_l )
	693	ENDIF
	694	ENDIF
	695
	696
	697	IF( humidity ) THEN
	698	IF( init_3d%lod_q == 1 ) THEN
	699	q_init = init_3d%q_init
	700	ELSEIF( init_3d%lod_q == 2 ) THEN
	701	ALLOCATE( init_l(nzb:nzt+1) )
	702	DO k = nzb, nzt+1
	703	init_l(k) = SUM( q(k,nys:nyn,nxl:nxr) )
	704	ENDDO
	705	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
	706
	707	#if defined( __parallel )
	708	CALL MPI_ALLREDUCE( init_l, q_init, nzt+1-nzb+1, &
	709	MPI_REAL, MPI_SUM, comm2d, ierr )
	710	#else
	711	q_init = init_l
	712	#endif
	713	DEALLOCATE( init_l )
	714	ENDIF
	715	ENDIF
	716
[2696]	717	!
[4130]	718	!-- Write initial profiles onto 3D arrays.
	719	!-- Work-around, 3D initialization of u,v,w creates artificial
	720	!-- structures wich correlate with the processor grid. The reason
	721	!-- for this is still unknown. To work-around this, 3D initialization
	722	!-- will be effectively reduce to a 1D initialization where no such
	723	!-- artificial structures appear.
[2696]	724	DO i = nxlg, nxrg
	725	DO j = nysg, nyng
[4130]	726	IF( init_3d%lod_u == 1 .OR. init_3d%lod_u == 2 ) &
	727	u(:,j,i) = u_init(:)
	728	IF( init_3d%lod_v == 1 .OR. init_3d%lod_u == 2 ) &
	729	v(:,j,i) = v_init(:)
	730	IF( .NOT. neutral .AND. &
	731	( init_3d%lod_pt == 1 .OR. init_3d%lod_pt == 2 ) ) &
[3051]	732	pt(:,j,i) = pt_init(:)
[4130]	733	IF( humidity .AND. &
	734	( init_3d%lod_q == 1 .OR. init_3d%lod_q == 2 ) ) &
	735	q(:,j,i) = q_init(:)
[2696]	736	ENDDO
	737	ENDDO
	738	!
[3182]	739	!-- Set geostrophic wind components.
[2938]	740	IF ( init_3d%from_file_ug ) THEN
	741	ug(:) = init_3d%ug_init(:)
	742	ENDIF
	743	IF ( init_3d%from_file_vg ) THEN
	744	vg(:) = init_3d%vg_init(:)
	745	ENDIF
[3404]	746	!
	747	!-- Set bottom and top boundary condition for geostrophic wind
[2938]	748	ug(nzt+1) = ug(nzt)
	749	vg(nzt+1) = vg(nzt)
[3404]	750	ug(nzb) = ug(nzb+1)
	751	vg(nzb) = vg(nzb+1)
[2696]	752	!
	753	!-- Set inital w to 0
	754	w = 0.0_wp
	755
	756	IF ( passive_scalar ) THEN
	757	DO i = nxlg, nxrg
	758	DO j = nysg, nyng
	759	s(:,j,i) = s_init
	760	ENDDO
	761	ENDDO
	762	ENDIF
	763
	764	!
	765	!-- Set velocity components at non-atmospheric / oceanic grid points to
	766	!-- zero.
	767	u = MERGE( u, 0.0_wp, BTEST( wall_flags_0, 1 ) )
	768	v = MERGE( v, 0.0_wp, BTEST( wall_flags_0, 2 ) )
	769	w = MERGE( w, 0.0_wp, BTEST( wall_flags_0, 3 ) )
[2700]	770	!
	771	!-- Initialize surface variables, e.g. friction velocity, momentum
	772	!-- fluxes, etc.
	773	CALL init_surfaces
[2696]	774
[3987]	775	IF ( debug_output ) CALL debug_message( 'initializing with INIFOR', 'end' )
[2696]	776	!
	777	!-- Initialization via computed 1D-model profiles
	778	ELSEIF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
	779
[3987]	780	IF ( debug_output ) CALL debug_message( 'initializing with 1D model profiles', 'start' )
[1]	781	!
	782	!-- Use solutions of the 1D model as initial profiles,
	783	!-- start 1D model
	784	CALL init_1d_model
	785	!
	786	!-- Transfer initial profiles to the arrays of the 3D model
[667]	787	DO i = nxlg, nxrg
	788	DO j = nysg, nyng
[1]	789	pt(:,j,i) = pt_init
	790	u(:,j,i) = u1d
	791	v(:,j,i) = v1d
	792	ENDDO
	793	ENDDO
	794
[1960]	795	IF ( humidity ) THEN
[667]	796	DO i = nxlg, nxrg
	797	DO j = nysg, nyng
[1]	798	q(:,j,i) = q_init
	799	ENDDO
	800	ENDDO
	801	ENDIF
[2292]	802
[1960]	803	IF ( passive_scalar ) THEN
	804	DO i = nxlg, nxrg
	805	DO j = nysg, nyng
	806	s(:,j,i) = s_init
	807	ENDDO
	808	ENDDO
	809	ENDIF
[1]	810	!
	811	!-- Store initial profiles for output purposes etc.
[2696]	812	IF ( .NOT. constant_diffusion ) THEN
[1]	813	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	814	ENDIF
	815	!
[2696]	816	!-- Set velocities back to zero
[2758]	817	u = MERGE( u, 0.0_wp, BTEST( wall_flags_0, 1 ) )
	818	v = MERGE( v, 0.0_wp, BTEST( wall_flags_0, 2 ) )
[1]	819	!
[2696]	820	!-- WARNING: The extra boundary conditions set after running the
	821	!-- ------- 1D model impose an error on the divergence one layer
	822	!-- below the topography; need to correct later
	823	!-- ATTENTION: Provisional correction for Piacsek & Williams
	824	!-- --------- advection scheme: keep u and v zero one layer below
	825	!-- the topography.
	826	IF ( ibc_uv_b == 1 ) THEN
[667]	827	!
[2696]	828	!-- Neumann condition
	829	DO i = nxl-1, nxr+1
	830	DO j = nys-1, nyn+1
	831	u(nzb,j,i) = u(nzb+1,j,i)
	832	v(nzb,j,i) = v(nzb+1,j,i)
[1]	833	ENDDO
[2696]	834	ENDDO
[1]	835
	836	ENDIF
[2618]	837	!
	838	!-- Initialize surface variables, e.g. friction velocity, momentum
	839	!-- fluxes, etc.
	840	CALL init_surfaces
[1]	841
[3987]	842	IF ( debug_output ) CALL debug_message( 'initializing with 1D model profiles', 'end' )
[1384]	843
[1788]	844	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
[1]	845	THEN
[1241]	846
[3987]	847	IF ( debug_output ) CALL debug_message( 'initializing with constant profiles', 'start' )
[2259]	848
	849	!
[1]	850	!-- Use constructed initial profiles (velocity constant with height,
	851	!-- temperature profile with constant gradient)
[667]	852	DO i = nxlg, nxrg
	853	DO j = nysg, nyng
[1]	854	pt(:,j,i) = pt_init
	855	u(:,j,i) = u_init
	856	v(:,j,i) = v_init
	857	ENDDO
	858	ENDDO
	859	!
[2758]	860	!-- Mask topography
	861	u = MERGE( u, 0.0_wp, BTEST( wall_flags_0, 1 ) )
	862	v = MERGE( v, 0.0_wp, BTEST( wall_flags_0, 2 ) )
	863	!
[292]	864	!-- Set initial horizontal velocities at the lowest computational grid
	865	!-- levels to zero in order to avoid too small time steps caused by the
	866	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
[2758]	867	!-- in the limiting formula!).
	868	!-- Please note, in case land- or urban-surface model is used and a
	869	!-- spinup is applied, masking the lowest computational level is not
	870	!-- possible as MOST as well as energy-balance parametrizations will not
	871	!-- work with zero wind velocity.
	872	IF ( ibc_uv_b /= 1 .AND. .NOT. spinup ) THEN
[1815]	873	DO i = nxlg, nxrg
	874	DO j = nysg, nyng
[2232]	875	DO k = nzb, nzt
	876	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, &
	877	BTEST( wall_flags_0(k,j,i), 20 ) )
	878	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, &
	879	BTEST( wall_flags_0(k,j,i), 21 ) )
	880	ENDDO
[1815]	881	ENDDO
	882	ENDDO
	883	ENDIF
[1]	884
[1960]	885	IF ( humidity ) THEN
[667]	886	DO i = nxlg, nxrg
	887	DO j = nysg, nyng
[1]	888	q(:,j,i) = q_init
	889	ENDDO
	890	ENDDO
	891	ENDIF
[1960]	892
	893	IF ( passive_scalar ) THEN
	894	DO i = nxlg, nxrg
	895	DO j = nysg, nyng
	896	s(:,j,i) = s_init
	897	ENDDO
	898	ENDDO
	899	ENDIF
[1]	900
[1920]	901	!
[1]	902	!-- Compute initial temperature field and other constants used in case
	903	!-- of a sloping surface
	904	IF ( sloping_surface ) CALL init_slope
[2618]	905	!
	906	!-- Initialize surface variables, e.g. friction velocity, momentum
	907	!-- fluxes, etc.
	908	CALL init_surfaces
[3579]	909
[3987]	910	IF ( debug_output ) CALL debug_message( 'initializing with constant profiles', 'end' )
[1384]	911
[1788]	912	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
[46]	913	THEN
[1384]	914
[3987]	915	IF ( debug_output ) CALL debug_message( 'initializing by user', 'start' )
[46]	916	!
[2618]	917	!-- Pre-initialize surface variables, i.e. setting start- and end-indices
	918	!-- at each (j,i)-location. Please note, this does not supersede
	919	!-- user-defined initialization of surface quantities.
	920	CALL init_surfaces
	921	!
[46]	922	!-- Initialization will completely be done by the user
	923	CALL user_init_3d_model
	924
[3987]	925	IF ( debug_output ) CALL debug_message( 'initializing by user', 'end' )
[1384]	926
[1]	927	ENDIF
[1384]	928
[3987]	929	IF ( debug_output ) CALL debug_message( 'initializing statistics, boundary conditions, etc.', 'start' )
[1384]	930
[667]	931	!
	932	!-- Bottom boundary
	933	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
[1340]	934	u(nzb,:,:) = 0.0_wp
	935	v(nzb,:,:) = 0.0_wp
[667]	936	ENDIF
[1]	937
	938	!
[151]	939	!-- Apply channel flow boundary condition
[132]	940	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
[1340]	941	u(nzt+1,:,:) = 0.0_wp
	942	v(nzt+1,:,:) = 0.0_wp
[132]	943	ENDIF
	944
	945	!
[1]	946	!-- Calculate virtual potential temperature
[1960]	947	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
[1]	948
	949	!
[2696]	950	!-- Store initial profiles for output purposes etc.. Please note, in case of
	951	!-- initialization of u, v, w, pt, and q via output data derived from larger
	952	!-- scale models, data will not be horizontally homogeneous. Actually, a mean
	953	!-- profile should be calculated before.
[1]	954	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	955	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
[667]	956	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
[1340]	957	hom(nzb,1,5,:) = 0.0_wp
	958	hom(nzb,1,6,:) = 0.0_wp
[1]	959	ENDIF
	960	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	961
[75]	962	IF ( humidity ) THEN
[1]	963	!
	964	!-- Store initial profile of total water content, virtual potential
	965	!-- temperature
	966	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	967	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
[2696]	968	!
[3040]	969	!-- Store initial profile of mixing ratio and potential
[2696]	970	!-- temperature
[3274]	971	IF ( bulk_cloud_model .OR. cloud_droplets ) THEN
[1]	972	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	973	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	974	ENDIF
	975	ENDIF
	976
[2696]	977	!
	978	!-- Store initial scalar profile
[1]	979	IF ( passive_scalar ) THEN
[2513]	980	hom(:,1,121,:) = SPREAD( s(:,nys,nxl), 2, statistic_regions+1 )
[1]	981	ENDIF
	982
	983	!
[1400]	984	!-- Initialize the random number generators (from numerical recipes)
	985	CALL random_function_ini
[1429]	986
[1400]	987	IF ( random_generator == 'random-parallel' ) THEN
[3241]	988	CALL init_parallel_random_generator( nx, nys, nyn, nxl, nxr )
[1400]	989	ENDIF
	990	!
[1179]	991	!-- Set the reference state to be used in the buoyancy terms (for ocean runs
	992	!-- the reference state will be set (overwritten) in init_ocean)
	993	IF ( use_single_reference_value ) THEN
[1788]	994	IF ( .NOT. humidity ) THEN
[1179]	995	ref_state(:) = pt_reference
	996	ELSE
	997	ref_state(:) = vpt_reference
	998	ENDIF
	999	ELSE
[1788]	1000	IF ( .NOT. humidity ) THEN
[1179]	1001	ref_state(:) = pt_init(:)
	1002	ELSE
	1003	ref_state(:) = vpt(:,nys,nxl)
	1004	ENDIF
	1005	ENDIF
[152]	1006
	1007	!
[707]	1008	!-- For the moment, vertical velocity is zero
[1340]	1009	w = 0.0_wp
[1]	1010
	1011	!
	1012	!-- Initialize array sums (must be defined in first call of pres)
[1340]	1013	sums = 0.0_wp
[1]	1014
	1015	!
[707]	1016	!-- In case of iterative solvers, p must get an initial value
[1575]	1017	IF ( psolver(1:9) == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
[707]	1018	!
[1]	1019	!-- Impose vortex with vertical axis on the initial velocity profile
	1020	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	1021	CALL init_rankine
	1022	ENDIF
	1023
	1024	!
[3035]	1025	!-- Impose temperature anomaly (advection test only) or warm air bubble
	1026	!-- close to surface
	1027	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 .OR. &
	1028	INDEX( initializing_actions, 'initialize_bubble' ) /= 0 ) THEN
[1]	1029	CALL init_pt_anomaly
	1030	ENDIF
[3035]	1031
[1]	1032	!
	1033	!-- If required, change the surface temperature at the start of the 3D run
[1340]	1034	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
[1]	1035	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	1036	ENDIF
	1037
	1038	!
	1039	!-- If required, change the surface humidity/scalar at the start of the 3D
	1040	!-- run
[1960]	1041	IF ( humidity .AND. q_surface_initial_change /= 0.0_wp ) &
[1]	1042	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
[1960]	1043
	1044	IF ( passive_scalar .AND. s_surface_initial_change /= 0.0_wp ) &
	1045	s(nzb,:,:) = s(nzb,:,:) + s_surface_initial_change
	1046
[1]	1047
	1048	!
	1049	!-- Initialize old and new time levels.
[2696]	1050	tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
	1051	pt_p = pt; u_p = u; v_p = v; w_p = w
[1]	1052
[1960]	1053	IF ( humidity ) THEN
[1340]	1054	tq_m = 0.0_wp
[1]	1055	q_p = q
	1056	ENDIF
[1960]	1057
	1058	IF ( passive_scalar ) THEN
	1059	ts_m = 0.0_wp
	1060	s_p = s
	1061	ENDIF
[1]	1062
[3987]	1063	IF ( debug_output ) CALL debug_message( 'initializing statistics, boundary conditions, etc.', 'end' )
[94]	1064
[1788]	1065	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
[2232]	1066	TRIM( initializing_actions ) == 'cyclic_fill' ) &
[1]	1067	THEN
[1384]	1068
[3987]	1069	IF ( debug_output ) CALL debug_message( 'initializing in case of restart / cyclic_fill', 'start' )
[1]	1070	!
[3609]	1071	!-- Initialize surface elements and its attributes, e.g. heat- and
	1072	!-- momentumfluxes, roughness, scaling parameters. As number of surface
	1073	!-- elements might be different between runs, e.g. in case of cyclic fill,
	1074	!-- and not all surface elements are read, surface elements need to be
	1075	!-- initialized before.
	1076	!-- Please note, in case of cyclic fill, surfaces should be initialized
	1077	!-- after restart data is read, else, individual settings of surface
	1078	!-- parameters will be overwritten from data of precursor run, hence,
	1079	!-- init_surfaces is called a second time after reading the restart data.
	1080	CALL init_surfaces
	1081	!
[767]	1082	!-- When reading data for cyclic fill of 3D prerun data files, read
	1083	!-- some of the global variables from the restart file which are required
	1084	!-- for initializing the inflow
[328]	1085	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[559]	1086
[759]	1087	DO i = 0, io_blocks-1
	1088	IF ( i == io_group ) THEN
[2894]	1089	CALL rrd_read_parts_of_global
[759]	1090	ENDIF
	1091	#if defined( __parallel )
	1092	CALL MPI_BARRIER( comm2d, ierr )
	1093	#endif
	1094	ENDDO
[328]	1095
[767]	1096	ENDIF
	1097
[151]	1098	!
[2894]	1099	!-- Read processor specific binary data from restart file
[767]	1100	DO i = 0, io_blocks-1
	1101	IF ( i == io_group ) THEN
[2894]	1102	CALL rrd_local
[767]	1103	ENDIF
	1104	#if defined( __parallel )
	1105	CALL MPI_BARRIER( comm2d, ierr )
	1106	#endif
	1107	ENDDO
[3608]	1108	!
[3609]	1109	!-- In case of cyclic fill, call init_surfaces a second time, so that
	1110	!-- surface properties such as heat fluxes are initialized as prescribed.
	1111	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) &
	1112	CALL init_surfaces
[767]	1113
[328]	1114	!
[2550]	1115	!-- In case of complex terrain and cyclic fill method as initialization,
	1116	!-- shift initial data in the vertical direction for each point in the
	1117	!-- x-y-plane depending on local surface height
	1118	IF ( complex_terrain .AND. &
	1119	TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	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
	1127	u(nz_u_shift:nzt+1,j,i) = u(0:nzt+1-nz_u_shift,j,i)
	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
[1788]	1140	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
[767]	1141	turbulent_inflow ) THEN
	1142	!
	1143	!-- First store the profiles to be used at the inflow.
	1144	!-- These profiles are the (temporally) and horizontally averaged vertical
	1145	!-- profiles from the prerun. Alternatively, prescribed profiles
[4185]	1146	!-- for u,v-components can be used.
	1147	!-- Overwrite u_init, v_init, pt_init, q_init and s_init with the
	1148	!-- (temporally) and horizontally averaged vertical profiles from the end
	1149	!-- of the prerun, because these profiles shall be used as the basic state
	1150	!-- for the rayleigh damping and the pt_damping.
[3288]	1151	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,1:num_mean_inflow_profiles) )
[151]	1152
[767]	1153	IF ( use_prescribed_profile_data ) THEN
	1154	mean_inflow_profiles(:,1) = u_init ! u
	1155	mean_inflow_profiles(:,2) = v_init ! v
	1156	ELSE
[328]	1157	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
[4185]	1158	u_init(:) = hom_sum(:,1,0)
[328]	1159	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
[4185]	1160	v_init(:) = hom_sum(:,2,0)
[767]	1161	ENDIF
	1162	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
[4185]	1163	pt_init(:) = hom_sum(:,4,0)
[1960]	1164	IF ( humidity ) &
	1165	mean_inflow_profiles(:,6) = hom_sum(:,41,0) ! q
[4185]	1166	q_init(:) = hom_sum(:,41,0)
[1960]	1167	IF ( passive_scalar ) &
	1168	mean_inflow_profiles(:,7) = hom_sum(:,115,0) ! s
[4185]	1169	s_init(:) = hom_sum(:,115,0)
[2550]	1170	!
	1171	!-- In case of complex terrain, determine vertical displacement at inflow
	1172	!-- boundary and adjust mean inflow profiles
	1173	IF ( complex_terrain ) THEN
	1174	IF ( nxlg <= 0 .AND. nxrg >= 0 .AND. nysg <= 0 .AND. nyng >= 0 ) THEN
[4168]	1175	nz_u_shift_l = topo_top_ind(j,i,1)
	1176	nz_v_shift_l = topo_top_ind(j,i,2)
	1177	nz_w_shift_l = topo_top_ind(j,i,3)
	1178	nz_s_shift_l = topo_top_ind(j,i,0)
[2550]	1179	ELSE
	1180	nz_u_shift_l = 0
	1181	nz_v_shift_l = 0
	1182	nz_w_shift_l = 0
	1183	nz_s_shift_l = 0
	1184	ENDIF
[151]	1185
[2550]	1186	#if defined( __parallel )
	1187	CALL MPI_ALLREDUCE(nz_u_shift_l, nz_u_shift, 1, MPI_INTEGER, &
	1188	MPI_MAX, comm2d, ierr)
	1189	CALL MPI_ALLREDUCE(nz_v_shift_l, nz_v_shift, 1, MPI_INTEGER, &
	1190	MPI_MAX, comm2d, ierr)
	1191	CALL MPI_ALLREDUCE(nz_w_shift_l, nz_w_shift, 1, MPI_INTEGER, &
	1192	MPI_MAX, comm2d, ierr)
	1193	CALL MPI_ALLREDUCE(nz_s_shift_l, nz_s_shift, 1, MPI_INTEGER, &
	1194	MPI_MAX, comm2d, ierr)
	1195	#else
	1196	nz_u_shift = nz_u_shift_l
	1197	nz_v_shift = nz_v_shift_l
	1198	nz_w_shift = nz_w_shift_l
	1199	nz_s_shift = nz_s_shift_l
	1200	#endif
	1201
	1202	mean_inflow_profiles(:,1) = 0.0_wp
	1203	mean_inflow_profiles(nz_u_shift:nzt+1,1) = hom_sum(0:nzt+1-nz_u_shift,1,0) ! u
	1204
	1205	mean_inflow_profiles(:,2) = 0.0_wp
	1206	mean_inflow_profiles(nz_v_shift:nzt+1,2) = hom_sum(0:nzt+1-nz_v_shift,2,0) ! v
	1207
	1208	mean_inflow_profiles(nz_s_shift:nzt+1,4) = hom_sum(0:nzt+1-nz_s_shift,4,0) ! pt
	1209
	1210	ENDIF
	1211
[151]	1212	!
[767]	1213	!-- If necessary, adjust the horizontal flow field to the prescribed
	1214	!-- profiles
	1215	IF ( use_prescribed_profile_data ) THEN
	1216	DO i = nxlg, nxrg
[667]	1217	DO j = nysg, nyng
[328]	1218	DO k = nzb, nzt+1
[767]	1219	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
	1220	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
[328]	1221	ENDDO
[151]	1222	ENDDO
[767]	1223	ENDDO
	1224	ENDIF
[151]	1225
	1226	!
[767]	1227	!-- Use these mean profiles at the inflow (provided that Dirichlet
	1228	!-- conditions are used)
[3182]	1229	IF ( bc_dirichlet_l ) THEN
[767]	1230	DO j = nysg, nyng
	1231	DO k = nzb, nzt+1
	1232	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
	1233	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
[1340]	1234	w(k,j,nxlg:-1) = 0.0_wp
[767]	1235	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
[1960]	1236	IF ( humidity ) &
[1615]	1237	q(k,j,nxlg:-1) = mean_inflow_profiles(k,6)
[1960]	1238	IF ( passive_scalar ) &
	1239	s(k,j,nxlg:-1) = mean_inflow_profiles(k,7)
[767]	1240	ENDDO
	1241	ENDDO
	1242	ENDIF
	1243
[151]	1244	!
[767]	1245	!-- Calculate the damping factors to be used at the inflow. For a
	1246	!-- turbulent inflow the turbulent fluctuations have to be limited
	1247	!-- vertically because otherwise the turbulent inflow layer will grow
	1248	!-- in time.
[1340]	1249	IF ( inflow_damping_height == 9999999.9_wp ) THEN
[767]	1250	!
	1251	!-- Default: use the inversion height calculated by the prerun; if
	1252	!-- this is zero, inflow_damping_height must be explicitly
	1253	!-- specified.
[1340]	1254	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
[767]	1255	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
	1256	ELSE
[1788]	1257	WRITE( message_string, * ) 'inflow_damping_height must be ', &
	1258	'explicitly specified because&the inversion height ', &
[767]	1259	'calculated by the prerun is zero.'
	1260	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
[292]	1261	ENDIF
[151]	1262
[767]	1263	ENDIF
	1264
[1340]	1265	IF ( inflow_damping_width == 9999999.9_wp ) THEN
[151]	1266	!
[767]	1267	!-- Default for the transition range: one tenth of the undamped
	1268	!-- layer
[1340]	1269	inflow_damping_width = 0.1_wp * inflow_damping_height
[151]	1270
[767]	1271	ENDIF
[151]	1272
[767]	1273	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
[151]	1274
[767]	1275	DO k = nzb, nzt+1
[151]	1276
[767]	1277	IF ( zu(k) <= inflow_damping_height ) THEN
[1340]	1278	inflow_damping_factor(k) = 1.0_wp
[996]	1279	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
[1340]	1280	inflow_damping_factor(k) = 1.0_wp - &
[996]	1281	( zu(k) - inflow_damping_height ) / &
	1282	inflow_damping_width
[767]	1283	ELSE
[1340]	1284	inflow_damping_factor(k) = 0.0_wp
[767]	1285	ENDIF
[151]	1286
[767]	1287	ENDDO
[151]	1288
[147]	1289	ENDIF
	1290
[152]	1291	!
[2696]	1292	!-- Inside buildings set velocities back to zero
[1788]	1293	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
[359]	1294	topography /= 'flat' ) THEN
	1295	!
[2696]	1296	!-- Inside buildings set velocities back to zero.
	1297	!-- Other scalars (pt, q, s, p, sa, ...) are ignored at present,
[359]	1298	!-- maybe revise later.
[1001]	1299	DO i = nxlg, nxrg
	1300	DO j = nysg, nyng
[2232]	1301	DO k = nzb, nzt
	1302	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, &
	1303	BTEST( wall_flags_0(k,j,i), 1 ) )
	1304	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, &
	1305	BTEST( wall_flags_0(k,j,i), 2 ) )
	1306	w(k,j,i) = MERGE( w(k,j,i), 0.0_wp, &
	1307	BTEST( wall_flags_0(k,j,i), 3 ) )
	1308	ENDDO
[359]	1309	ENDDO
[1001]	1310	ENDDO
[359]	1311
	1312	ENDIF
	1313
	1314	!
[1]	1315	!-- Calculate initial temperature field and other constants used in case
	1316	!-- of a sloping surface
	1317	IF ( sloping_surface ) CALL init_slope
	1318
	1319	!
	1320	!-- Initialize new time levels (only done in order to set boundary values
	1321	!-- including ghost points)
[2696]	1322	pt_p = pt; u_p = u; v_p = v; w_p = w
[1960]	1323	IF ( humidity ) THEN
[1053]	1324	q_p = q
	1325	ENDIF
[1960]	1326	IF ( passive_scalar ) s_p = s
[181]	1327	!
	1328	!-- Allthough tendency arrays are set in prognostic_equations, they have
	1329	!-- have to be predefined here because they are used (but multiplied with 0)
	1330	!-- there before they are set.
[2696]	1331	tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
[1960]	1332	IF ( humidity ) THEN
[1340]	1333	tq_m = 0.0_wp
[1053]	1334	ENDIF
[1960]	1335	IF ( passive_scalar ) ts_m = 0.0_wp
[181]	1336
[3987]	1337	IF ( debug_output ) CALL debug_message( 'initializing in case of restart / cyclic_fill', 'end' )
[1384]	1338
[1]	1339	ELSE
	1340	!
	1341	!-- Actually this part of the programm should not be reached
[254]	1342	message_string = 'unknown initializing problem'
	1343	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
[1]	1344	ENDIF
	1345
[151]	1346
	1347	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
[1]	1348	!
[151]	1349	!-- Initialize old timelevels needed for radiation boundary conditions
[3182]	1350	IF ( bc_radiation_l ) THEN
[151]	1351	u_m_l(:,:,:) = u(:,:,1:2)
	1352	v_m_l(:,:,:) = v(:,:,0:1)
	1353	w_m_l(:,:,:) = w(:,:,0:1)
	1354	ENDIF
[3182]	1355	IF ( bc_radiation_r ) THEN
[151]	1356	u_m_r(:,:,:) = u(:,:,nx-1:nx)
	1357	v_m_r(:,:,:) = v(:,:,nx-1:nx)
	1358	w_m_r(:,:,:) = w(:,:,nx-1:nx)
	1359	ENDIF
[3182]	1360	IF ( bc_radiation_s ) THEN
[151]	1361	u_m_s(:,:,:) = u(:,0:1,:)
	1362	v_m_s(:,:,:) = v(:,1:2,:)
	1363	w_m_s(:,:,:) = w(:,0:1,:)
	1364	ENDIF
[3182]	1365	IF ( bc_radiation_n ) THEN
[151]	1366	u_m_n(:,:,:) = u(:,ny-1:ny,:)
	1367	v_m_n(:,:,:) = v(:,ny-1:ny,:)
	1368	w_m_n(:,:,:) = w(:,ny-1:ny,:)
	1369	ENDIF
[667]	1370
[151]	1371	ENDIF
[680]	1372
[667]	1373	!
	1374	!-- Calculate the initial volume flow at the right and north boundary
[709]	1375	IF ( conserve_volume_flow ) THEN
[151]	1376
[767]	1377	IF ( use_prescribed_profile_data ) THEN
[667]	1378
[1340]	1379	volume_flow_initial_l = 0.0_wp
	1380	volume_flow_area_l = 0.0_wp
[732]	1381
[667]	1382	IF ( nxr == nx ) THEN
	1383	DO j = nys, nyn
[2232]	1384	DO k = nzb+1, nzt
[1788]	1385	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[2232]	1386	u_init(k) * dzw(k) &
	1387	* MERGE( 1.0_wp, 0.0_wp, &
	1388	BTEST( wall_flags_0(k,j,nxr), 1 )&
	1389	)
	1390
	1391	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1392	* MERGE( 1.0_wp, 0.0_wp, &
	1393	BTEST( wall_flags_0(k,j,nxr), 1 )&
	1394	)
[767]	1395	ENDDO
	1396	ENDDO
	1397	ENDIF
	1398
	1399	IF ( nyn == ny ) THEN
	1400	DO i = nxl, nxr
[2232]	1401	DO k = nzb+1, nzt
	1402	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1403	v_init(k) * dzw(k) &
	1404	* MERGE( 1.0_wp, 0.0_wp, &
	1405	BTEST( wall_flags_0(k,nyn,i), 2 )&
	1406	)
	1407	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1408	* MERGE( 1.0_wp, 0.0_wp, &
	1409	BTEST( wall_flags_0(k,nyn,i), 2 )&
	1410	)
[767]	1411	ENDDO
	1412	ENDDO
	1413	ENDIF
	1414
	1415	#if defined( __parallel )
	1416	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1417	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1418	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1419	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1420
	1421	#else
	1422	volume_flow_initial = volume_flow_initial_l
	1423	volume_flow_area = volume_flow_area_l
	1424	#endif
	1425
	1426	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1427
[1340]	1428	volume_flow_initial_l = 0.0_wp
	1429	volume_flow_area_l = 0.0_wp
[767]	1430
	1431	IF ( nxr == nx ) THEN
	1432	DO j = nys, nyn
[2232]	1433	DO k = nzb+1, nzt
[1788]	1434	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
[2232]	1435	hom_sum(k,1,0) * dzw(k) &
	1436	* MERGE( 1.0_wp, 0.0_wp, &
	1437	BTEST( wall_flags_0(k,j,nx), 1 ) &
	1438	)
	1439	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1440	* MERGE( 1.0_wp, 0.0_wp, &
	1441	BTEST( wall_flags_0(k,j,nx), 1 ) &
	1442	)
[667]	1443	ENDDO
	1444	ENDDO
	1445	ENDIF
	1446
	1447	IF ( nyn == ny ) THEN
	1448	DO i = nxl, nxr
[2232]	1449	DO k = nzb+1, nzt
[1788]	1450	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
[2232]	1451	hom_sum(k,2,0) * dzw(k) &
	1452	* MERGE( 1.0_wp, 0.0_wp, &
	1453	BTEST( wall_flags_0(k,ny,i), 2 ) &
	1454	)
	1455	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1456	* MERGE( 1.0_wp, 0.0_wp, &
	1457	BTEST( wall_flags_0(k,ny,i), 2 ) &
	1458	)
[667]	1459	ENDDO
	1460	ENDDO
	1461	ENDIF
	1462
[732]	1463	#if defined( __parallel )
	1464	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1465	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1466	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1467	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1468
	1469	#else
	1470	volume_flow_initial = volume_flow_initial_l
	1471	volume_flow_area = volume_flow_area_l
	1472	#endif
	1473
[667]	1474	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	1475
[1340]	1476	volume_flow_initial_l = 0.0_wp
	1477	volume_flow_area_l = 0.0_wp
[732]	1478
[667]	1479	IF ( nxr == nx ) THEN
	1480	DO j = nys, nyn
[2232]	1481	DO k = nzb+1, nzt
	1482	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1483	u(k,j,nx) * dzw(k) &
	1484	* MERGE( 1.0_wp, 0.0_wp, &
	1485	BTEST( wall_flags_0(k,j,nx), 1 ) &
	1486	)
	1487	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1488	* MERGE( 1.0_wp, 0.0_wp, &
	1489	BTEST( wall_flags_0(k,j,nx), 1 ) &
	1490	)
[667]	1491	ENDDO
	1492	ENDDO
	1493	ENDIF
	1494
	1495	IF ( nyn == ny ) THEN
	1496	DO i = nxl, nxr
[2232]	1497	DO k = nzb+1, nzt
[1788]	1498	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
[2232]	1499	v(k,ny,i) * dzw(k) &
	1500	* MERGE( 1.0_wp, 0.0_wp, &
	1501	BTEST( wall_flags_0(k,ny,i), 2 ) &
	1502	)
	1503	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1504	* MERGE( 1.0_wp, 0.0_wp, &
	1505	BTEST( wall_flags_0(k,ny,i), 2 ) &
	1506	)
[667]	1507	ENDDO
	1508	ENDDO
	1509	ENDIF
	1510
	1511	#if defined( __parallel )
[732]	1512	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1513	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1514	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1515	2, MPI_REAL, MPI_SUM, comm2d, ierr )
[667]	1516
	1517	#else
[732]	1518	volume_flow_initial = volume_flow_initial_l
	1519	volume_flow_area = volume_flow_area_l
[667]	1520	#endif
	1521
[732]	1522	ENDIF
	1523
[151]	1524	!
[709]	1525	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
	1526	!-- from u\|v_bulk instead
[680]	1527	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
	1528	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
	1529	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
	1530	ENDIF
[667]	1531
[680]	1532	ENDIF
[2232]	1533	!
[4150]	1534	!-- In the following, surface properties can be further initialized with
	1535	!-- input from static driver file.
	1536	!-- At the moment this affects only default surfaces. For example,
	1537	!-- roughness length or sensible / latent heat fluxes can be initialized
	1538	!-- heterogeneously for default surfaces. Therefore, a generic routine
	1539	!-- from netcdf_data_input_mod is called to read a 2D array.
	1540	IF ( input_pids_static ) THEN
	1541	!
[4151]	1542	!-- Allocate memory for possible static input
	1543	ALLOCATE( tmp_2d%var(nys:nyn,nxl:nxr) )
	1544	tmp_2d%var = 0.0_wp
	1545	!
[4150]	1546	!-- Open the static input file
[4151]	1547	#if defined( __netcdf )
[4150]	1548	CALL open_read_file( TRIM( input_file_static ) // &
	1549	TRIM( coupling_char ), &
[4186]	1550	pids_id )
[4150]	1551
[4186]	1552	CALL inquire_num_variables( pids_id, num_var_pids )
[4150]	1553	!
	1554	!-- Allocate memory to store variable names and read them
[4186]	1555	ALLOCATE( vars_pids(1:num_var_pids) )
	1556	CALL inquire_variable_names( pids_id, vars_pids )
[4150]	1557	!
	1558	!-- Input roughness length.
[4186]	1559	IF ( check_existence( vars_pids, 'z0' ) ) THEN
[4150]	1560	!
	1561	!-- Read _FillValue attribute
[4186]	1562	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, &
[4150]	1563	.FALSE., 'z0' )
	1564	!
	1565	!-- Read variable
[4186]	1566	CALL get_variable( pids_id, 'z0', tmp_2d%var, &
[4150]	1567	nxl, nxr, nys, nyn )
	1568	!
	1569	!-- Initialize roughness length. Note, z0 will be only initialized at
	1570	!-- default-type surfaces. At natural or urban z0 is implicitly
	1571	!-- initialized bythe respective parameter lists.
	1572	!-- Initialize horizontal surface elements.
	1573	CALL init_single_surface_properties( surf_def_h(0)%z0, &
	1574	tmp_2d%var, &
	1575	surf_def_h(0)%ns, &
	1576	tmp_2d%fill, &
	1577	surf_def_h(0)%i, &
	1578	surf_def_h(0)%j )
	1579	!
	1580	!-- Initialize roughness also at vertical surface elements.
	1581	!-- Note, the actual 2D input arrays are only defined on the
	1582	!-- subdomain. Therefore, pass the index arrays with their respective
	1583	!-- offset values.
	1584	DO l = 0, 3
	1585	CALL init_single_surface_properties( &
	1586	surf_def_v(l)%z0, &
	1587	tmp_2d%var, &
	1588	surf_def_v(l)%ns, &
	1589	tmp_2d%fill, &
	1590	surf_def_v(l)%i + surf_def_v(l)%ioff, &
	1591	surf_def_v(l)%j + surf_def_v(l)%joff )
	1592	ENDDO
	1593
	1594	ENDIF
	1595	!
	1596	!-- Additional variables, e.g. shf, qsws, etc, can be initialized the
	1597	!-- same way.
	1598
	1599	!
[4187]	1600	!-- Finally, close the input file and deallocate temporary arrays
	1601	DEALLOCATE( vars_pids )
	1602
[4186]	1603	CALL close_input_file( pids_id )
[4151]	1604	#endif
	1605	DEALLOCATE( tmp_2d%var )
[4150]	1606	ENDIF
	1607	!
[2618]	1608	!-- Finally, if random_heatflux is set, disturb shf at horizontal
	1609	!-- surfaces. Actually, this should be done in surface_mod, where all other
	1610	!-- initializations of surface quantities are done. However, this
	1611	!-- would create a ring dependency, hence, it is done here. Maybe delete
	1612	!-- disturb_heatflux and tranfer the respective code directly into the
	1613	!-- initialization in surface_mod.
[2232]	1614	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
	1615	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[2618]	1616
[2232]	1617	IF ( use_surface_fluxes .AND. constant_heatflux .AND. &
	1618	random_heatflux ) THEN
	1619	IF ( surf_def_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_def_h(0) )
	1620	IF ( surf_lsm_h%ns >= 1 ) CALL disturb_heatflux( surf_lsm_h )
	1621	IF ( surf_usm_h%ns >= 1 ) CALL disturb_heatflux( surf_usm_h )
	1622	ENDIF
	1623	ENDIF
[680]	1624
[787]	1625	!
[3747]	1626	!-- Compute total sum of grid points and the mean surface level height for each
	1627	!-- statistic region. These are mainly used for horizontal averaging of
	1628	!-- turbulence statistics.
[2696]	1629	!-- ngp_2dh: number of grid points of a horizontal cross section through the
[3747]	1630	!-- respective statistic region
	1631	!-- ngp_3d: number of grid points of the respective statistic region
[2696]	1632	ngp_2dh_outer_l = 0
	1633	ngp_2dh_outer = 0
	1634	ngp_2dh_s_inner_l = 0
	1635	ngp_2dh_s_inner = 0
	1636	ngp_2dh_l = 0
	1637	ngp_2dh = 0
	1638	ngp_3d_inner_l = 0.0_wp
	1639	ngp_3d_inner = 0
	1640	ngp_3d = 0
	1641	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
	1642
	1643	mean_surface_level_height = 0.0_wp
	1644	mean_surface_level_height_l = 0.0_wp
	1645	!
	1646	!-- To do: New concept for these non-topography grid points!
	1647	DO sr = 0, statistic_regions
	1648	DO i = nxl, nxr
	1649	DO j = nys, nyn
	1650	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
	1651	!
	1652	!-- All xy-grid points
	1653	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1654	!
	1655	!-- Determine mean surface-level height. In case of downward-
	1656	!-- facing walls are present, more than one surface level exist.
	1657	!-- In this case, use the lowest surface-level height.
	1658	IF ( surf_def_h(0)%start_index(j,i) <= &
	1659	surf_def_h(0)%end_index(j,i) ) THEN
	1660	m = surf_def_h(0)%start_index(j,i)
	1661	k = surf_def_h(0)%k(m)
	1662	mean_surface_level_height_l(sr) = &
	1663	mean_surface_level_height_l(sr) + zw(k-1)
	1664	ENDIF
	1665	IF ( surf_lsm_h%start_index(j,i) <= &
	1666	surf_lsm_h%end_index(j,i) ) THEN
	1667	m = surf_lsm_h%start_index(j,i)
	1668	k = surf_lsm_h%k(m)
	1669	mean_surface_level_height_l(sr) = &
	1670	mean_surface_level_height_l(sr) + zw(k-1)
	1671	ENDIF
	1672	IF ( surf_usm_h%start_index(j,i) <= &
	1673	surf_usm_h%end_index(j,i) ) THEN
	1674	m = surf_usm_h%start_index(j,i)
	1675	k = surf_usm_h%k(m)
	1676	mean_surface_level_height_l(sr) = &
	1677	mean_surface_level_height_l(sr) + zw(k-1)
	1678	ENDIF
	1679
	1680	k_surf = k - 1
	1681
	1682	DO k = nzb, nzt+1
	1683	!
	1684	!-- xy-grid points above topography
	1685	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + &
	1686	MERGE( 1, 0, BTEST( wall_flags_0(k,j,i), 24 ) )
	1687
	1688	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + &
	1689	MERGE( 1, 0, BTEST( wall_flags_0(k,j,i), 22 ) )
	1690
	1691	ENDDO
	1692	!
	1693	!-- All grid points of the total domain above topography
	1694	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + ( nz - k_surf + 2 )
	1695
	1696
	1697
	1698	ENDIF
	1699	ENDDO
	1700	ENDDO
	1701	ENDDO
[3747]	1702
[2696]	1703	sr = statistic_regions + 1
	1704	#if defined( __parallel )
	1705	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1706	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
	1707	comm2d, ierr )
	1708	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1709	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
	1710	MPI_INTEGER, MPI_SUM, comm2d, ierr )
	1711	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1712	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
	1713	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
	1714	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1715	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
	1716	MPI_SUM, comm2d, ierr )
	1717	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
	1718	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1719	CALL MPI_ALLREDUCE( mean_surface_level_height_l(0), &
	1720	mean_surface_level_height(0), sr, MPI_REAL, &
	1721	MPI_SUM, comm2d, ierr )
	1722	mean_surface_level_height = mean_surface_level_height / REAL( ngp_2dh )
	1723	#else
	1724	ngp_2dh = ngp_2dh_l
	1725	ngp_2dh_outer = ngp_2dh_outer_l
	1726	ngp_2dh_s_inner = ngp_2dh_s_inner_l
	1727	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
	1728	mean_surface_level_height = mean_surface_level_height_l / REAL( ngp_2dh_l )
	1729	#endif
	1730
	1731	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
	1732	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
	1733
	1734	!
	1735	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
	1736	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
	1737	!-- the respective subdomain lie below the surface topography
	1738	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
	1739	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
	1740	ngp_3d_inner(:) )
	1741	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
	1742
	1743	DEALLOCATE( mean_surface_level_height_l, ngp_2dh_l, ngp_2dh_outer_l, &
	1744	ngp_3d_inner_l, ngp_3d_inner_tmp )
	1745	!
[2232]	1746	!-- Initialize surface forcing corresponding to large-scale forcing. Therein,
	1747	!-- initialize heat-fluxes, etc. via datatype. Revise it later!
	1748	IF ( large_scale_forcing .AND. lsf_surf ) THEN
	1749	IF ( use_surface_fluxes .AND. constant_heatflux ) THEN
	1750	CALL ls_forcing_surf ( simulated_time )
	1751	ENDIF
	1752	ENDIF
	1753	!
[3347]	1754	!-- Initializae 3D offline nesting in COSMO model and read data from
	1755	!-- external NetCDF file.
	1756	IF ( nesting_offline ) CALL nesting_offl_init
	1757	!
[787]	1758	!-- Initialize quantities for special advections schemes
	1759	CALL init_advec
[680]	1760
[667]	1761	!
[680]	1762	!-- Impose random perturbation on the horizontal velocity field and then
	1763	!-- remove the divergences from the velocity field at the initial stage
[1788]	1764	IF ( create_disturbances .AND. disturbance_energy_limit /= 0.0_wp .AND. &
	1765	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[680]	1766	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
	1767
[3987]	1768	IF ( debug_output ) CALL debug_message( 'creating disturbances + applying pressure solver', 'start' )
[3849]	1769	!
	1770	!-- Needed for both disturb_field and pres
	1771	!$ACC DATA &
	1772	!$ACC CREATE(tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1773	!$ACC COPY(u(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1774	!$ACC COPY(v(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
	1775
[2232]	1776	CALL disturb_field( 'u', tend, u )
	1777	CALL disturb_field( 'v', tend, v )
[1384]	1778
[3849]	1779	!$ACC DATA &
	1780	!$ACC CREATE(d(nzb+1:nzt,nys:nyn,nxl:nxr)) &
	1781	!$ACC COPY(w(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1782	!$ACC COPY(p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1783	!$ACC COPYIN(rho_air(nzb:nzt+1), rho_air_zw(nzb:nzt+1)) &
	1784	!$ACC COPYIN(ddzu(1:nzt+1), ddzw(1:nzt+1)) &
	1785	!$ACC COPYIN(wall_flags_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1786	!$ACC COPYIN(bc_h(0:1)) &
	1787	!$ACC COPYIN(bc_h(0)%i(1:bc_h(0)%ns)) &
	1788	!$ACC COPYIN(bc_h(0)%j(1:bc_h(0)%ns)) &
	1789	!$ACC COPYIN(bc_h(0)%k(1:bc_h(0)%ns)) &
	1790	!$ACC COPYIN(bc_h(1)%i(1:bc_h(1)%ns)) &
	1791	!$ACC COPYIN(bc_h(1)%j(1:bc_h(1)%ns)) &
	1792	!$ACC COPYIN(bc_h(1)%k(1:bc_h(1)%ns))
	1793
[680]	1794	n_sor = nsor_ini
	1795	CALL pres
	1796	n_sor = nsor
[1384]	1797
[3849]	1798	!$ACC END DATA
	1799	!$ACC END DATA
	1800
[3987]	1801	IF ( debug_output ) CALL debug_message( 'creating disturbances + applying pressure solver', 'end' )
	1802
[680]	1803	ENDIF
	1804
[3294]	1805	IF ( .NOT. ocean_mode ) THEN
[3274]	1806
	1807	ALLOCATE( hyp(nzb:nzt+1) )
	1808	ALLOCATE( d_exner(nzb:nzt+1) )
	1809	ALLOCATE( exner(nzb:nzt+1) )
	1810	ALLOCATE( hyrho(nzb:nzt+1) )
[1849]	1811	!
[3274]	1812	!-- Check temperature in case of too large domain height
	1813	DO k = nzb, nzt+1
	1814	IF ( ( pt_surface * exner_function(surface_pressure * 100.0_wp) - g/c_p * zu(k) ) < 0.0_wp ) THEN
	1815	WRITE( message_string, * ) 'absolute temperature < 0.0 at zu(', k, &
	1816	') = ', zu(k)
[3685]	1817	CALL message( 'init_3d_model', 'PA0142', 1, 2, 0, 6, 0 )
[3274]	1818	ENDIF
	1819	ENDDO
	1820
	1821	!
	1822	!-- Calculate vertical profile of the hydrostatic pressure (hyp)
	1823	hyp = barometric_formula(zu, pt_surface * exner_function(surface_pressure * 100.0_wp), surface_pressure * 100.0_wp)
	1824	d_exner = exner_function_invers(hyp)
	1825	exner = 1.0_wp / exner_function_invers(hyp)
	1826	hyrho = ideal_gas_law_rho_pt(hyp, pt_init)
	1827	!
	1828	!-- Compute reference density
	1829	rho_surface = ideal_gas_law_rho(surface_pressure * 100.0_wp, pt_surface * exner_function(surface_pressure * 100.0_wp))
	1830
[96]	1831	ENDIF
[1]	1832
	1833	!
	1834	!-- If required, initialize particles
[3159]	1835	IF ( agents_active ) CALL mas_init
	1836	!
[3937]	1837	!-- Initialization of synthetic turbulence generator
	1838	IF ( use_syn_turb_gen ) CALL stg_init
[2696]	1839	!
[3685]	1840	!-- Initializing actions for all other modules
	1841	CALL module_interface_init
[2696]	1842	!
[3685]	1843	!-- Initialize surface layer (done after LSM as roughness length are required
	1844	!-- for initialization
	1845	IF ( constant_flux_layer ) CALL init_surface_layer_fluxes
[2977]	1846	!
[3421]	1847	!-- Initialize surface data output
[3685]	1848	IF ( surface_output ) CALL surface_data_output_init
[3472]	1849	!
[673]	1850	!-- Initialize the ws-scheme.
[3448]	1851	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
[3711]	1852	!
	1853	!-- Perform post-initializing checks for all other modules
	1854	CALL module_interface_init_checks
[1]	1855
	1856	!
[709]	1857	!-- Setting weighting factors for calculation of perturbation pressure
[1762]	1858	!-- and turbulent quantities from the RK substeps
[709]	1859	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
	1860
[1322]	1861	weight_substep(1) = 1._wp/6._wp
	1862	weight_substep(2) = 3._wp/10._wp
	1863	weight_substep(3) = 8._wp/15._wp
[709]	1864
[1322]	1865	weight_pres(1) = 1._wp/3._wp
	1866	weight_pres(2) = 5._wp/12._wp
	1867	weight_pres(3) = 1._wp/4._wp
[709]	1868
	1869	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
	1870
[1322]	1871	weight_substep(1) = 1._wp/2._wp
	1872	weight_substep(2) = 1._wp/2._wp
[673]	1873
[1322]	1874	weight_pres(1) = 1._wp/2._wp
	1875	weight_pres(2) = 1._wp/2._wp
[709]	1876
[1001]	1877	ELSE ! for Euler-method
[709]	1878
[1340]	1879	weight_substep(1) = 1.0_wp
	1880	weight_pres(1) = 1.0_wp
[709]	1881
[673]	1882	ENDIF
	1883
	1884	!
[1]	1885	!-- Initialize Rayleigh damping factors
[1340]	1886	rdf = 0.0_wp
	1887	rdf_sc = 0.0_wp
	1888	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
[3294]	1889
	1890	IF ( .NOT. ocean_mode ) THEN
[108]	1891	DO k = nzb+1, nzt
	1892	IF ( zu(k) >= rayleigh_damping_height ) THEN
[1788]	1893	rdf(k) = rayleigh_damping_factor * &
[1340]	1894	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
[1788]	1895	/ ( zu(nzt) - rayleigh_damping_height ) ) &
[1]	1896	)**2
[108]	1897	ENDIF
	1898	ENDDO
	1899	ELSE
[3294]	1900	!
	1901	!-- In ocean mode, rayleigh damping is applied in the lower part of the
	1902	!-- model domain
[108]	1903	DO k = nzt, nzb+1, -1
	1904	IF ( zu(k) <= rayleigh_damping_height ) THEN
[1788]	1905	rdf(k) = rayleigh_damping_factor * &
[1340]	1906	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
[1788]	1907	/ ( rayleigh_damping_height - zu(nzb+1) ) ) &
[108]	1908	)**2
	1909	ENDIF
	1910	ENDDO
	1911	ENDIF
[3294]	1912
[1]	1913	ENDIF
[785]	1914	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
[1]	1915
	1916	!
[240]	1917	!-- Initialize the starting level and the vertical smoothing factor used for
	1918	!-- the external pressure gradient
[1340]	1919	dp_smooth_factor = 1.0_wp
[240]	1920	IF ( dp_external ) THEN
	1921	!
	1922	!-- Set the starting level dp_level_ind_b only if it has not been set before
	1923	!-- (e.g. in init_grid).
	1924	IF ( dp_level_ind_b == 0 ) THEN
	1925	ind_array = MINLOC( ABS( dp_level_b - zu ) )
	1926	dp_level_ind_b = ind_array(1) - 1 + nzb
	1927	! MINLOC uses lower array bound 1
	1928	ENDIF
	1929	IF ( dp_smooth ) THEN
[1340]	1930	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
[240]	1931	DO k = dp_level_ind_b+1, nzt
[1340]	1932	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
	1933	( REAL( k - dp_level_ind_b, KIND=wp ) / &
	1934	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
[240]	1935	ENDDO
	1936	ENDIF
	1937	ENDIF
	1938
	1939	!
[978]	1940	!-- Initialize damping zone for the potential temperature in case of
	1941	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
	1942	!-- at the inflow boundary and decreases to zero at pt_damping_width.
[1340]	1943	ptdf_x = 0.0_wp
	1944	ptdf_y = 0.0_wp
[1159]	1945	IF ( bc_lr_dirrad ) THEN
[996]	1946	DO i = nxl, nxr
[978]	1947	IF ( ( i * dx ) < pt_damping_width ) THEN
[1340]	1948	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
	1949	REAL( pt_damping_width - i * dx, KIND=wp ) / ( &
[1788]	1950	REAL( pt_damping_width, KIND=wp ) ) ) )**2
[73]	1951	ENDIF
	1952	ENDDO
[1159]	1953	ELSEIF ( bc_lr_raddir ) THEN
[996]	1954	DO i = nxl, nxr
[978]	1955	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
[1322]	1956	ptdf_x(i) = pt_damping_factor * &
[1340]	1957	SIN( pi * 0.5_wp * &
	1958	( ( i - nx ) * dx + pt_damping_width ) / &
	1959	REAL( pt_damping_width, KIND=wp ) )**2
[73]	1960	ENDIF
[978]	1961	ENDDO
[1159]	1962	ELSEIF ( bc_ns_dirrad ) THEN
[996]	1963	DO j = nys, nyn
[978]	1964	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
[1322]	1965	ptdf_y(j) = pt_damping_factor * &
[1340]	1966	SIN( pi * 0.5_wp * &
	1967	( ( j - ny ) * dy + pt_damping_width ) / &
	1968	REAL( pt_damping_width, KIND=wp ) )**2
[1]	1969	ENDIF
[978]	1970	ENDDO
[1159]	1971	ELSEIF ( bc_ns_raddir ) THEN
[996]	1972	DO j = nys, nyn
[978]	1973	IF ( ( j * dy ) < pt_damping_width ) THEN
[1322]	1974	ptdf_y(j) = pt_damping_factor * &
[1340]	1975	SIN( pi * 0.5_wp * &
	1976	( pt_damping_width - j * dy ) / &
	1977	REAL( pt_damping_width, KIND=wp ) )**2
[1]	1978	ENDIF
[73]	1979	ENDDO
[1]	1980	ENDIF
[51]	1981
[1]	1982	!
	1983	!-- Input binary data file is not needed anymore. This line must be placed
	1984	!-- after call of user_init!
	1985	CALL close_file( 13 )
[2934]	1986	!
	1987	!-- In case of nesting, put an barrier to assure that all parent and child
	1988	!-- domains finished initialization.
	1989	#if defined( __parallel )
	1990	IF ( nested_run ) CALL MPI_BARRIER( MPI_COMM_WORLD, ierr )
	1991	#endif
[1]	1992
[2934]	1993
[3987]	1994	CALL location_message( 'model initialization', 'finished' )
[1]	1995
	1996	END SUBROUTINE init_3d_model

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source: palm/trunk/SOURCE/init_3d_model.f90 @ 4187

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