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init_3d_model.f90 @ 4471

Last change on this file since 4471 was 4392, checked in by pavelkrc, 5 years ago

Merge branch resler (updated documentation, optional flux tracing, bugfix)

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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	2023-4391
/palm/branches/salsa/SOURCE/init_3d_model.f90	2503-3581

File size: 82.1 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	!
[4360]	17	! Copyright 1997-2020 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 4392 2020-01-31 16:14:57Z schwenkel $
[4365]	27	! Overwrite u_init, v_init, pt_init, q_init and s_init with hom for all
	28	! cyclic_fill-cases, not only for turbulent_inflow = .TRUE.
	29	!
	30	! 4360 2020-01-07 11:25:50Z suehring
[4346]	31	! Introduction of wall_flags_total_0, which currently sets bits based on static
	32	! topography information used in wall_flags_static_0
	33	!
	34	! 4329 2019-12-10 15:46:36Z motisi
[4329]	35	! Renamed wall_flags_0 to wall_flags_static_0
	36	!
	37	! 4286 2019-10-30 16:01:14Z resler
[4227]	38	! implement new palm_date_time_mod
	39	!
	40	! 4223 2019-09-10 09:20:47Z gronemeier
[4187]	41	! Deallocate temporary string array since it may be re-used to read different
	42	! input data in other modules
	43	!
	44	! 4186 2019-08-23 16:06:14Z suehring
[4186]	45	! Design change, use variables defined in netcdf_data_input_mod to read netcd
	46	! variables rather than define local ones.
	47	!
	48	! 4185 2019-08-23 13:49:38Z oliver.maas
[4185]	49	! For initializing_actions = ' cyclic_fill':
	50	! Overwrite u_init, v_init, pt_init, q_init and s_init with the
	51	! (temporally) and horizontally averaged vertical profiles from the end
	52	! of the prerun, because these profiles shall be used as the basic state
	53	! for the rayleigh damping and the pt_damping.
	54	!
	55	! 4182 2019-08-22 15:20:23Z scharf
[4182]	56	! Corrected "Former revisions" section
	57	!
	58	! 4168 2019-08-16 13:50:17Z suehring
[4168]	59	! Replace function get_topography_top_index by topo_top_ind
	60	!
	61	! 4151 2019-08-09 08:24:30Z suehring
[4151]	62	! Add netcdf directive around input calls (fix for last commit)
	63	!
	64	! 4150 2019-08-08 20:00:47Z suehring
[4150]	65	! Input of additional surface variables independent on land- or urban-surface
	66	! model
	67	!
	68	! 4131 2019-08-02 11:06:18Z monakurppa
[4131]	69	! Allocate sums and sums_l to allow profile output for salsa variables.
	70	!
	71	! 4130 2019-08-01 13:04:13Z suehring
[4130]	72	! Effectively reduce 3D initialization to 1D initial profiles. This is because
	73	! 3D initialization produces structures in the w-component that are correlated
	74	! with the processor grid for some unknown reason
	75	!
	76	! 4090 2019-07-11 15:06:47Z Giersch
[4090]	77	! Unused variables removed
	78	!
	79	! 4088 2019-07-11 13:57:56Z Giersch
[4088]	80	! Pressure and density profile calculations revised using basic functions
	81	!
	82	! 4048 2019-06-21 21:00:21Z knoop
[4028]	83	! Further modularization of particle code components
	84	!
	85	! 4017 2019-06-06 12:16:46Z schwenkel
[3987]	86	! Convert most location messages to debug messages to reduce output in
	87	! job logfile to a minimum
	88	!
	89	!
[3939]	90	! unused variable removed
	91	!
	92	! 3937 2019-04-29 15:09:07Z suehring
[3937]	93	! Move initialization of synthetic turbulence generator behind initialization
	94	! of offline nesting. Remove call for stg_adjust, as this is now already done
	95	! in stg_init.
	96	!
	97	! 3900 2019-04-16 15:17:43Z suehring
[3900]	98	! Fix problem with LOD = 2 initialization
	99	!
	100	! 3885 2019-04-11 11:29:34Z kanani
[3885]	101	! Changes related to global restructuring of location messages and introduction
	102	! of additional debug messages
	103	!
	104	! 3849 2019-04-01 16:35:16Z knoop
[3747]	105	! Move initialization of rmask before initializing user_init_arrays
	106	!
	107	! 3711 2019-01-31 13:44:26Z knoop
[3711]	108	! Introduced module_interface_init_checks for post-init checks in modules
	109	!
	110	! 3700 2019-01-26 17:03:42Z knoop
[3685]	111	! Some interface calls moved to module_interface + cleanup
	112	!
	113	! 3648 2019-01-02 16:35:46Z suehring
[3648]	114	! Rename subroutines for surface-data output
[3569]	115	!
[4182]	116	! Revision 1.1 1998/03/09 16:22:22 raasch
	117	! Initial revision
	118	!
	119	!
[1]	120	! Description:
	121	! ------------
[1682]	122	!> Allocation of arrays and initialization of the 3D model via
	123	!> a) pre-run the 1D model
	124	!> or
	125	!> b) pre-set constant linear profiles
	126	!> or
	127	!> c) read values of a previous run
[1]	128	!------------------------------------------------------------------------------!
[1682]	129	SUBROUTINE init_3d_model
[1]	130
[3298]	131
[667]	132	USE advec_ws
[1320]	133
[1]	134	USE arrays_3d
[1849]	135
[3274]	136	USE basic_constants_and_equations_mod, &
[4090]	137	ONLY: c_p, g, l_v, pi, exner_function, exner_function_invers, &
[3274]	138	ideal_gas_law_rho, ideal_gas_law_rho_pt, barometric_formula
	139
	140	USE bulk_cloud_model_mod, &
[3685]	141	ONLY: bulk_cloud_model
[3274]	142
[3298]	143	USE chem_modules, &
[3685]	144	ONLY: max_pr_cs ! ToDo: this dependency needs to be removed cause it is ugly #new_dom
[3298]	145
[1]	146	USE control_parameters
[3298]	147
[1320]	148	USE grid_variables, &
[2037]	149	ONLY: dx, dy, ddx2_mg, ddy2_mg
[2817]	150
[1]	151	USE indices
[3469]	152
[1320]	153	USE kinds
[1496]	154
[2320]	155	USE lsf_nudging_mod, &
[3685]	156	ONLY: ls_forcing_surf
[1849]	157
[2338]	158	USE model_1d_mod, &
[3241]	159	ONLY: init_1d_model, l1d, u1d, v1d
[2338]	160
[3685]	161	USE module_interface, &
[3711]	162	ONLY: module_interface_init_arrays, &
	163	module_interface_init, &
	164	module_interface_init_checks
[3685]	165
[3159]	166	USE multi_agent_system_mod, &
	167	ONLY: agents_active, mas_init
	168
[1783]	169	USE netcdf_interface, &
[3700]	170	ONLY: dots_max
[2696]	171
[2906]	172	USE netcdf_data_input_mod, &
[4150]	173	ONLY: char_fill, &
	174	check_existence, &
	175	close_input_file, &
	176	get_attribute, &
	177	get_variable, &
	178	init_3d, &
	179	input_pids_static, &
	180	inquire_num_variables, &
	181	inquire_variable_names, &
	182	input_file_static, &
	183	netcdf_data_input_init_3d, &
[4186]	184	num_var_pids, &
[4150]	185	open_read_file, &
[4186]	186	pids_id, &
	187	real_2d, &
	188	vars_pids
[4150]	189
[3347]	190	USE nesting_offl_mod, &
	191	ONLY: nesting_offl_init
[3294]	192
[4227]	193	USE palm_date_time_mod, &
	194	ONLY: set_reference_date_time
	195
[1]	196	USE pegrid
[3298]	197
[3524]	198	#if defined( __parallel )
[2934]	199	USE pmc_interface, &
	200	ONLY: nested_run
[3524]	201	#endif
[2934]	202
[1320]	203	USE random_function_mod
[3685]	204
[1400]	205	USE random_generator_parallel, &
[2172]	206	ONLY: init_parallel_random_generator
[3685]	207
[2894]	208	USE read_restart_data_mod, &
[3685]	209	ONLY: rrd_read_parts_of_global, rrd_local
	210
[1320]	211	USE statistics, &
[1738]	212	ONLY: hom, hom_sum, mean_surface_level_height, pr_palm, rmask, &
[1833]	213	statistic_regions, sums, sums_divnew_l, sums_divold_l, sums_l, &
[2277]	214	sums_l_l, sums_wsts_bc_l, ts_value, &
[1833]	215	weight_pres, weight_substep
[2259]	216
	217	USE synthetic_turbulence_generator_mod, &
[3939]	218	ONLY: stg_init, use_syn_turb_gen
[3685]	219
[1691]	220	USE surface_layer_fluxes_mod, &
	221	ONLY: init_surface_layer_fluxes
[2232]	222
	223	USE surface_mod, &
[4150]	224	ONLY : init_single_surface_properties, &
	225	init_surface_arrays, &
	226	init_surfaces, &
	227	surf_def_h, &
	228	surf_def_v, &
	229	surf_lsm_h, &
[4168]	230	surf_usm_h
[3685]	231
[3849]	232	#if defined( _OPENACC )
	233	USE surface_mod, &
	234	ONLY : bc_h
	235	#endif
	236
[3648]	237	USE surface_data_output_mod, &
	238	ONLY: surface_data_output_init
[3685]	239
[2007]	240	USE transpose_indices
[1]	241
	242	IMPLICIT NONE
[4150]	243
	244	INTEGER(iwp) :: i !< grid index in x direction
	245	INTEGER(iwp) :: ind_array(1) !< dummy used to determine start index for external pressure forcing
	246	INTEGER(iwp) :: j !< grid index in y direction
	247	INTEGER(iwp) :: k !< grid index in z direction
	248	INTEGER(iwp) :: k_surf !< surface level index
	249	INTEGER(iwp) :: l !< running index over surface orientation
	250	INTEGER(iwp) :: m !< index of surface element in surface data type
	251	INTEGER(iwp) :: nz_u_shift !< topography-top index on u-grid, used to vertically shift initial profiles
	252	INTEGER(iwp) :: nz_v_shift !< topography-top index on v-grid, used to vertically shift initial profiles
	253	INTEGER(iwp) :: nz_w_shift !< topography-top index on w-grid, used to vertically shift initial profiles
	254	INTEGER(iwp) :: nz_s_shift !< topography-top index on scalar-grid, used to vertically shift initial profiles
	255	INTEGER(iwp) :: nz_u_shift_l !< topography-top index on u-grid, used to vertically shift initial profiles
	256	INTEGER(iwp) :: nz_v_shift_l !< topography-top index on v-grid, used to vertically shift initial profiles
	257	INTEGER(iwp) :: nz_w_shift_l !< topography-top index on w-grid, used to vertically shift initial profiles
	258	INTEGER(iwp) :: nz_s_shift_l !< topography-top index on scalar-grid, used to vertically shift initial profiles
	259	INTEGER(iwp) :: nzt_l !< index of top PE boundary for multigrid level
	260	INTEGER(iwp) :: sr !< index of statistic region
[1]	261
[3547]	262	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ngp_2dh_l !< toal number of horizontal grid points in statistical region on subdomain
[1]	263
[3547]	264	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l !< number of horizontal non-wall bounded grid points on subdomain
	265	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_s_inner_l !< number of horizontal non-topography grid points on subdomain
[1]	266
[4150]	267
	268
[3182]	269	REAL(wp), DIMENSION(:), ALLOCATABLE :: init_l !< dummy array used for averaging 3D data to obtain inital profiles
[2037]	270	REAL(wp), DIMENSION(:), ALLOCATABLE :: p_hydrostatic !< hydrostatic pressure
	271
	272	REAL(wp) :: dx_l !< grid spacing along x on different multigrid level
	273	REAL(wp) :: dy_l !< grid spacing along y on different multigrid level
	274
[3547]	275	REAL(wp), DIMENSION(1:3) :: volume_flow_area_l !< area of lateral and top model domain surface on local subdomain
	276	REAL(wp), DIMENSION(1:3) :: volume_flow_initial_l !< initial volume flow into model domain
[1]	277
[3547]	278	REAL(wp), DIMENSION(:), ALLOCATABLE :: mean_surface_level_height_l !< mean surface level height on subdomain
	279	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_l !< total number of non-topography grid points on subdomain
	280	REAL(wp), DIMENSION(:), ALLOCATABLE :: ngp_3d_inner_tmp !< total number of non-topography grid points
[1]	281
[4150]	282	TYPE(real_2d) :: tmp_2d !< temporary variable to input additional surface-data from static file
	283
[3987]	284	CALL location_message( 'model initialization', 'start' )
[4227]	285	!
	286	!-- Set reference date-time
	287	CALL set_reference_date_time( date_time_str=origin_date_time )
[3987]	288
	289	IF ( debug_output ) CALL debug_message( 'allocating arrays', 'start' )
[1]	290	!
	291	!-- Allocate arrays
[1788]	292	ALLOCATE( mean_surface_level_height(0:statistic_regions), &
	293	mean_surface_level_height_l(0:statistic_regions), &
	294	ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
	295	ngp_3d(0:statistic_regions), &
	296	ngp_3d_inner(0:statistic_regions), &
	297	ngp_3d_inner_l(0:statistic_regions), &
	298	ngp_3d_inner_tmp(0:statistic_regions), &
	299	sums_divnew_l(0:statistic_regions), &
[1]	300	sums_divold_l(0:statistic_regions) )
[1195]	301	ALLOCATE( dp_smooth_factor(nzb:nzt), rdf(nzb+1:nzt), rdf_sc(nzb+1:nzt) )
[1788]	302	ALLOCATE( ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
	303	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
	304	ngp_2dh_s_inner(nzb:nzt+1,0:statistic_regions), &
	305	ngp_2dh_s_inner_l(nzb:nzt+1,0:statistic_regions), &
	306	rmask(nysg:nyng,nxlg:nxrg,0:statistic_regions), &
[4131]	307	sums(nzb:nzt+1,pr_palm+max_pr_user+max_pr_cs+max_pr_salsa), &
	308	sums_l(nzb:nzt+1,pr_palm+max_pr_user+max_pr_cs+max_pr_salsa,0:threads_per_task-1), &
[1788]	309	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
[3700]	310	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions) )
	311	ALLOCATE( ts_value(dots_max,0:statistic_regions) )
[978]	312	ALLOCATE( ptdf_x(nxlg:nxrg), ptdf_y(nysg:nyng) )
[1]	313
[1788]	314	ALLOCATE( d(nzb+1:nzt,nys:nyn,nxl:nxr), &
	315	p(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1010]	316	tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	317
[2696]	318	ALLOCATE( pt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1788]	319	pt_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	320	u_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	321	u_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	322	u_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	323	v_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	324	v_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	325	v_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	326	w_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	327	w_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[667]	328	w_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1788]	329	IF ( .NOT. neutral ) THEN
[1032]	330	ALLOCATE( pt_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	331	ENDIF
[673]	332	!
[3747]	333	!-- Pre-set masks for regional statistics. Default is the total model domain.
	334	!-- Ghost points are excluded because counting values at the ghost boundaries
	335	!-- would bias the statistics
	336	rmask = 1.0_wp
	337	rmask(:,nxlg:nxl-1,:) = 0.0_wp; rmask(:,nxr+1:nxrg,:) = 0.0_wp
	338	rmask(nysg:nys-1,:,:) = 0.0_wp; rmask(nyn+1:nyng,:,:) = 0.0_wp
	339	!
[707]	340	!-- Following array is required for perturbation pressure within the iterative
	341	!-- pressure solvers. For the multistep schemes (Runge-Kutta), array p holds
	342	!-- the weighted average of the substeps and cannot be used in the Poisson
	343	!-- solver.
	344	IF ( psolver == 'sor' ) THEN
	345	ALLOCATE( p_loc(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[1575]	346	ELSEIF ( psolver(1:9) == 'multigrid' ) THEN
[707]	347	!
	348	!-- For performance reasons, multigrid is using one ghost layer only
	349	ALLOCATE( p_loc(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[673]	350	ENDIF
[1]	351
[1111]	352	!
	353	!-- Array for storing constant coeffficients of the tridiagonal solver
	354	IF ( psolver == 'poisfft' ) THEN
[1212]	355	ALLOCATE( tri(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1,2) )
[1111]	356	ALLOCATE( tric(nxl_z:nxr_z,nys_z:nyn_z,0:nz-1) )
	357	ENDIF
	358
[1960]	359	IF ( humidity ) THEN
[1]	360	!
[1960]	361	!-- 3D-humidity
[1788]	362	ALLOCATE( q_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	363	q_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[3011]	364	q_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	365	vpt_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	366	ENDIF
[1960]	367
	368	IF ( passive_scalar ) THEN
[1]	369
[1960]	370	!
	371	!-- 3D scalar arrays
	372	ALLOCATE( s_1(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	373	s_2(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	374	s_3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
[3636]	375
[1960]	376	ENDIF
	377
[1]	378	!
[3302]	379	!-- Allocate and set 1d-profiles for Stokes drift velocity. It may be set to
	380	!-- non-zero values later in ocean_init
	381	ALLOCATE( u_stokes_zu(nzb:nzt+1), u_stokes_zw(nzb:nzt+1), &
	382	v_stokes_zu(nzb:nzt+1), v_stokes_zw(nzb:nzt+1) )
	383	u_stokes_zu(:) = 0.0_wp
	384	u_stokes_zw(:) = 0.0_wp
	385	v_stokes_zu(:) = 0.0_wp
	386	v_stokes_zw(:) = 0.0_wp
	387
	388	!
[2037]	389	!-- Allocation of anelastic and Boussinesq approximation specific arrays
	390	ALLOCATE( p_hydrostatic(nzb:nzt+1) )
	391	ALLOCATE( rho_air(nzb:nzt+1) )
	392	ALLOCATE( rho_air_zw(nzb:nzt+1) )
	393	ALLOCATE( drho_air(nzb:nzt+1) )
	394	ALLOCATE( drho_air_zw(nzb:nzt+1) )
	395	!
[4088]	396	!-- Density profile calculation for anelastic and Boussinesq approximation
	397	!-- In case of a Boussinesq approximation, a constant density is calculated
	398	!-- mainly for output purposes. This density do not need to be considered
	399	!-- in the model's system of equations.
	400	IF ( TRIM( approximation ) == 'anelastic' ) THEN
[2037]	401	DO k = nzb, nzt+1
[4088]	402	p_hydrostatic(k) = barometric_formula(zu(k), pt_surface * &
	403	exner_function(surface_pressure * 100.0_wp), &
	404	surface_pressure * 100.0_wp)
	405
	406	rho_air(k) = ideal_gas_law_rho_pt(p_hydrostatic(k), pt_init(k))
[2037]	407	ENDDO
[4088]	408
[2037]	409	DO k = nzb, nzt
	410	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
	411	ENDDO
[4088]	412
[2037]	413	rho_air_zw(nzt+1) = rho_air_zw(nzt) &
	414	+ 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
[4088]	415
[2037]	416	ELSE
[2252]	417	DO k = nzb, nzt+1
[4088]	418	p_hydrostatic(k) = barometric_formula(zu(nzb), pt_surface * &
	419	exner_function(surface_pressure * 100.0_wp), &
	420	surface_pressure * 100.0_wp)
	421
	422	rho_air(k) = ideal_gas_law_rho_pt(p_hydrostatic(k), pt_init(nzb))
[2252]	423	ENDDO
[4088]	424
[2252]	425	DO k = nzb, nzt
	426	rho_air_zw(k) = 0.5_wp * ( rho_air(k) + rho_air(k+1) )
	427	ENDDO
[4088]	428
[2252]	429	rho_air_zw(nzt+1) = rho_air_zw(nzt) &
	430	+ 2.0_wp * ( rho_air(nzt+1) - rho_air_zw(nzt) )
[4088]	431
[2037]	432	ENDIF
[2696]	433	!
[2037]	434	!-- compute the inverse density array in order to avoid expencive divisions
	435	drho_air = 1.0_wp / rho_air
	436	drho_air_zw = 1.0_wp / rho_air_zw
	437
	438	!
	439	!-- Allocation of flux conversion arrays
	440	ALLOCATE( heatflux_input_conversion(nzb:nzt+1) )
	441	ALLOCATE( waterflux_input_conversion(nzb:nzt+1) )
	442	ALLOCATE( momentumflux_input_conversion(nzb:nzt+1) )
	443	ALLOCATE( heatflux_output_conversion(nzb:nzt+1) )
	444	ALLOCATE( waterflux_output_conversion(nzb:nzt+1) )
	445	ALLOCATE( momentumflux_output_conversion(nzb:nzt+1) )
	446
	447	!
	448	!-- calculate flux conversion factors according to approximation and in-/output mode
	449	DO k = nzb, nzt+1
	450
	451	IF ( TRIM( flux_input_mode ) == 'kinematic' ) THEN
	452	heatflux_input_conversion(k) = rho_air_zw(k)
	453	waterflux_input_conversion(k) = rho_air_zw(k)
	454	momentumflux_input_conversion(k) = rho_air_zw(k)
	455	ELSEIF ( TRIM( flux_input_mode ) == 'dynamic' ) THEN
[3274]	456	heatflux_input_conversion(k) = 1.0_wp / c_p
[2037]	457	waterflux_input_conversion(k) = 1.0_wp / l_v
	458	momentumflux_input_conversion(k) = 1.0_wp
	459	ENDIF
	460
	461	IF ( TRIM( flux_output_mode ) == 'kinematic' ) THEN
	462	heatflux_output_conversion(k) = drho_air_zw(k)
	463	waterflux_output_conversion(k) = drho_air_zw(k)
	464	momentumflux_output_conversion(k) = drho_air_zw(k)
	465	ELSEIF ( TRIM( flux_output_mode ) == 'dynamic' ) THEN
[3274]	466	heatflux_output_conversion(k) = c_p
[2037]	467	waterflux_output_conversion(k) = l_v
	468	momentumflux_output_conversion(k) = 1.0_wp
	469	ENDIF
	470
	471	IF ( .NOT. humidity ) THEN
	472	waterflux_input_conversion(k) = 1.0_wp
	473	waterflux_output_conversion(k) = 1.0_wp
	474	ENDIF
	475
	476	ENDDO
	477
	478	!
	479	!-- In case of multigrid method, compute grid lengths and grid factors for the
	480	!-- grid levels with respective density on each grid
	481	IF ( psolver(1:9) == 'multigrid' ) THEN
	482
	483	ALLOCATE( ddx2_mg(maximum_grid_level) )
	484	ALLOCATE( ddy2_mg(maximum_grid_level) )
	485	ALLOCATE( dzu_mg(nzb+1:nzt+1,maximum_grid_level) )
	486	ALLOCATE( dzw_mg(nzb+1:nzt+1,maximum_grid_level) )
	487	ALLOCATE( f1_mg(nzb+1:nzt,maximum_grid_level) )
	488	ALLOCATE( f2_mg(nzb+1:nzt,maximum_grid_level) )
	489	ALLOCATE( f3_mg(nzb+1:nzt,maximum_grid_level) )
	490	ALLOCATE( rho_air_mg(nzb:nzt+1,maximum_grid_level) )
	491	ALLOCATE( rho_air_zw_mg(nzb:nzt+1,maximum_grid_level) )
	492
	493	dzu_mg(:,maximum_grid_level) = dzu
	494	rho_air_mg(:,maximum_grid_level) = rho_air
	495	!
	496	!-- Next line to ensure an equally spaced grid.
	497	dzu_mg(1,maximum_grid_level) = dzu(2)
	498	rho_air_mg(nzb,maximum_grid_level) = rho_air(nzb) + &
	499	(rho_air(nzb) - rho_air(nzb+1))
	500
	501	dzw_mg(:,maximum_grid_level) = dzw
	502	rho_air_zw_mg(:,maximum_grid_level) = rho_air_zw
	503	nzt_l = nzt
	504	DO l = maximum_grid_level-1, 1, -1
	505	dzu_mg(nzb+1,l) = 2.0_wp * dzu_mg(nzb+1,l+1)
	506	dzw_mg(nzb+1,l) = 2.0_wp * dzw_mg(nzb+1,l+1)
	507	rho_air_mg(nzb,l) = rho_air_mg(nzb,l+1) + (rho_air_mg(nzb,l+1) - rho_air_mg(nzb+1,l+1))
	508	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))
	509	rho_air_mg(nzb+1,l) = rho_air_mg(nzb+1,l+1)
	510	rho_air_zw_mg(nzb+1,l) = rho_air_zw_mg(nzb+1,l+1)
	511	nzt_l = nzt_l / 2
	512	DO k = 2, nzt_l+1
	513	dzu_mg(k,l) = dzu_mg(2k-2,l+1) + dzu_mg(2k-1,l+1)
	514	dzw_mg(k,l) = dzw_mg(2k-2,l+1) + dzw_mg(2k-1,l+1)
	515	rho_air_mg(k,l) = rho_air_mg(2*k-1,l+1)
	516	rho_air_zw_mg(k,l) = rho_air_zw_mg(2*k-1,l+1)
	517	ENDDO
	518	ENDDO
	519
	520	nzt_l = nzt
	521	dx_l = dx
	522	dy_l = dy
	523	DO l = maximum_grid_level, 1, -1
	524	ddx2_mg(l) = 1.0_wp / dx_l**2
	525	ddy2_mg(l) = 1.0_wp / dy_l**2
	526	DO k = nzb+1, nzt_l
	527	f2_mg(k,l) = rho_air_zw_mg(k,l) / ( dzu_mg(k+1,l) * dzw_mg(k,l) )
	528	f3_mg(k,l) = rho_air_zw_mg(k-1,l) / ( dzu_mg(k,l) * dzw_mg(k,l) )
	529	f1_mg(k,l) = 2.0_wp * ( ddx2_mg(l) + ddy2_mg(l) ) &
	530	* rho_air_mg(k,l) + f2_mg(k,l) + f3_mg(k,l)
	531	ENDDO
	532	nzt_l = nzt_l / 2
	533	dx_l = dx_l * 2.0_wp
	534	dy_l = dy_l * 2.0_wp
	535	ENDDO
	536
	537	ENDIF
	538
	539	!
[1299]	540	!-- 1D-array for large scale subsidence velocity
[1361]	541	IF ( .NOT. ALLOCATED( w_subs ) ) THEN
	542	ALLOCATE ( w_subs(nzb:nzt+1) )
	543	w_subs = 0.0_wp
	544	ENDIF
[1299]	545
	546	!
[106]	547	!-- Arrays to store velocity data from t-dt and the phase speeds which
	548	!-- are needed for radiation boundary conditions
[3182]	549	IF ( bc_radiation_l ) THEN
[1788]	550	ALLOCATE( u_m_l(nzb:nzt+1,nysg:nyng,1:2), &
	551	v_m_l(nzb:nzt+1,nysg:nyng,0:1), &
[667]	552	w_m_l(nzb:nzt+1,nysg:nyng,0:1) )
[73]	553	ENDIF
[3182]	554	IF ( bc_radiation_r ) THEN
[1788]	555	ALLOCATE( u_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
	556	v_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx), &
[667]	557	w_m_r(nzb:nzt+1,nysg:nyng,nx-1:nx) )
[73]	558	ENDIF
[3182]	559	IF ( bc_radiation_l .OR. bc_radiation_r ) THEN
[1788]	560	ALLOCATE( c_u(nzb:nzt+1,nysg:nyng), c_v(nzb:nzt+1,nysg:nyng), &
[667]	561	c_w(nzb:nzt+1,nysg:nyng) )
[106]	562	ENDIF
[3182]	563	IF ( bc_radiation_s ) THEN
[1788]	564	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxlg:nxrg), &
	565	v_m_s(nzb:nzt+1,1:2,nxlg:nxrg), &
[667]	566	w_m_s(nzb:nzt+1,0:1,nxlg:nxrg) )
[73]	567	ENDIF
[3182]	568	IF ( bc_radiation_n ) THEN
[1788]	569	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
	570	v_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg), &
[667]	571	w_m_n(nzb:nzt+1,ny-1:ny,nxlg:nxrg) )
[73]	572	ENDIF
[3182]	573	IF ( bc_radiation_s .OR. bc_radiation_n ) THEN
[1788]	574	ALLOCATE( c_u(nzb:nzt+1,nxlg:nxrg), c_v(nzb:nzt+1,nxlg:nxrg), &
[667]	575	c_w(nzb:nzt+1,nxlg:nxrg) )
[106]	576	ENDIF
[3182]	577	IF ( bc_radiation_l .OR. bc_radiation_r .OR. bc_radiation_s .OR. &
	578	bc_radiation_n ) THEN
[978]	579	ALLOCATE( c_u_m_l(nzb:nzt+1), c_v_m_l(nzb:nzt+1), c_w_m_l(nzb:nzt+1) )
	580	ALLOCATE( c_u_m(nzb:nzt+1), c_v_m(nzb:nzt+1), c_w_m(nzb:nzt+1) )
	581	ENDIF
[73]	582
	583	!
[1]	584	!-- Initial assignment of the pointers
[1032]	585	IF ( .NOT. neutral ) THEN
	586	pt => pt_1; pt_p => pt_2; tpt_m => pt_3
	587	ELSE
	588	pt => pt_1; pt_p => pt_1; tpt_m => pt_3
	589	ENDIF
[1001]	590	u => u_1; u_p => u_2; tu_m => u_3
	591	v => v_1; v_p => v_2; tv_m => v_3
	592	w => w_1; w_p => w_2; tw_m => w_3
[1]	593
[1960]	594	IF ( humidity ) THEN
[1001]	595	q => q_1; q_p => q_2; tq_m => q_3
[3274]	596	vpt => vpt_1
[1001]	597	ENDIF
[1960]	598
	599	IF ( passive_scalar ) THEN
	600	s => s_1; s_p => s_2; ts_m => s_3
	601	ENDIF
[1]	602
	603	!
[2696]	604	!-- Initialize surface arrays
[2232]	605	CALL init_surface_arrays
	606	!
[3294]	607	!-- Allocate arrays for other modules
[3685]	608	CALL module_interface_init_arrays
[1551]	609
[1914]	610
[2320]	611	!
[709]	612	!-- Allocate arrays containing the RK coefficient for calculation of
	613	!-- perturbation pressure and turbulent fluxes. At this point values are
	614	!-- set for pressure calculation during initialization (where no timestep
	615	!-- is done). Further below the values needed within the timestep scheme
	616	!-- will be set.
[1788]	617	ALLOCATE( weight_substep(1:intermediate_timestep_count_max), &
[1878]	618	weight_pres(1:intermediate_timestep_count_max) )
[1340]	619	weight_substep = 1.0_wp
	620	weight_pres = 1.0_wp
[1918]	621	intermediate_timestep_count = 0 ! needed when simulated_time = 0.0
[673]	622
[3987]	623	IF ( debug_output ) CALL debug_message( 'allocating arrays', 'end' )
[1918]	624
[673]	625	!
[3014]	626	!-- Initialize time series
	627	ts_value = 0.0_wp
	628
	629	!
[1918]	630	!-- Initialize local summation arrays for routine flow_statistics.
	631	!-- This is necessary because they may not yet have been initialized when they
	632	!-- are called from flow_statistics (or - depending on the chosen model run -
	633	!-- are never initialized)
	634	sums_divnew_l = 0.0_wp
	635	sums_divold_l = 0.0_wp
	636	sums_l_l = 0.0_wp
	637	sums_wsts_bc_l = 0.0_wp
[3182]	638
[1918]	639	!
[1]	640	!-- Initialize model variables
[1788]	641	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[328]	642	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[1]	643	!
[2696]	644	!-- Initialization with provided input data derived from larger-scale model
	645	IF ( INDEX( initializing_actions, 'inifor' ) /= 0 ) THEN
[3987]	646	IF ( debug_output ) CALL debug_message( 'initializing with INIFOR', 'start' )
[2696]	647	!
[3051]	648	!-- Read initial 1D profiles or 3D data from NetCDF file, depending
	649	!-- on the provided level-of-detail.
[2696]	650	!-- At the moment, only u, v, w, pt and q are provided.
	651	CALL netcdf_data_input_init_3d
	652	!
[3182]	653	!-- Please note, Inifor provides data from nzb+1 to nzt.
	654	!-- Bottom and top boundary conditions for Inifor profiles are already
	655	!-- set (just after reading), so that this is not necessary here.
	656	!-- Depending on the provided level-of-detail, initial Inifor data is
	657	!-- either stored on data type (lod=1), or directly on 3D arrays (lod=2).
	658	!-- In order to obtain also initial profiles in case of lod=2 (which
	659	!-- is required for e.g. damping), average over 3D data.
	660	IF( init_3d%lod_u == 1 ) THEN
	661	u_init = init_3d%u_init
	662	ELSEIF( init_3d%lod_u == 2 ) THEN
	663	ALLOCATE( init_l(nzb:nzt+1) )
	664	DO k = nzb, nzt+1
	665	init_l(k) = SUM( u(k,nys:nyn,nxl:nxr) )
	666	ENDDO
	667	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
[1384]	668
[3182]	669	#if defined( __parallel )
	670	CALL MPI_ALLREDUCE( init_l, u_init, nzt+1-nzb+1, &
	671	MPI_REAL, MPI_SUM, comm2d, ierr )
	672	#else
	673	u_init = init_l
	674	#endif
	675	DEALLOCATE( init_l )
[3051]	676
[2696]	677	ENDIF
[3182]	678
	679	IF( init_3d%lod_v == 1 ) THEN
	680	v_init = init_3d%v_init
	681	ELSEIF( init_3d%lod_v == 2 ) THEN
	682	ALLOCATE( init_l(nzb:nzt+1) )
	683	DO k = nzb, nzt+1
	684	init_l(k) = SUM( v(k,nys:nyn,nxl:nxr) )
	685	ENDDO
	686	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
[2696]	687
[3182]	688	#if defined( __parallel )
	689	CALL MPI_ALLREDUCE( init_l, v_init, nzt+1-nzb+1, &
	690	MPI_REAL, MPI_SUM, comm2d, ierr )
	691	#else
	692	v_init = init_l
	693	#endif
	694	DEALLOCATE( init_l )
	695	ENDIF
	696	IF( .NOT. neutral ) THEN
	697	IF( init_3d%lod_pt == 1 ) THEN
	698	pt_init = init_3d%pt_init
	699	ELSEIF( init_3d%lod_pt == 2 ) THEN
	700	ALLOCATE( init_l(nzb:nzt+1) )
	701	DO k = nzb, nzt+1
	702	init_l(k) = SUM( pt(k,nys:nyn,nxl:nxr) )
	703	ENDDO
	704	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
	705
	706	#if defined( __parallel )
	707	CALL MPI_ALLREDUCE( init_l, pt_init, nzt+1-nzb+1, &
	708	MPI_REAL, MPI_SUM, comm2d, ierr )
	709	#else
	710	pt_init = init_l
	711	#endif
	712	DEALLOCATE( init_l )
	713	ENDIF
	714	ENDIF
	715
	716
	717	IF( humidity ) THEN
	718	IF( init_3d%lod_q == 1 ) THEN
	719	q_init = init_3d%q_init
	720	ELSEIF( init_3d%lod_q == 2 ) THEN
	721	ALLOCATE( init_l(nzb:nzt+1) )
	722	DO k = nzb, nzt+1
	723	init_l(k) = SUM( q(k,nys:nyn,nxl:nxr) )
	724	ENDDO
	725	init_l = init_l / REAL( ( nx + 1 ) * ( ny + 1 ), KIND = wp )
	726
	727	#if defined( __parallel )
	728	CALL MPI_ALLREDUCE( init_l, q_init, nzt+1-nzb+1, &
	729	MPI_REAL, MPI_SUM, comm2d, ierr )
	730	#else
	731	q_init = init_l
	732	#endif
	733	DEALLOCATE( init_l )
	734	ENDIF
	735	ENDIF
	736
[2696]	737	!
[4130]	738	!-- Write initial profiles onto 3D arrays.
	739	!-- Work-around, 3D initialization of u,v,w creates artificial
	740	!-- structures wich correlate with the processor grid. The reason
	741	!-- for this is still unknown. To work-around this, 3D initialization
	742	!-- will be effectively reduce to a 1D initialization where no such
	743	!-- artificial structures appear.
[2696]	744	DO i = nxlg, nxrg
	745	DO j = nysg, nyng
[4130]	746	IF( init_3d%lod_u == 1 .OR. init_3d%lod_u == 2 ) &
	747	u(:,j,i) = u_init(:)
	748	IF( init_3d%lod_v == 1 .OR. init_3d%lod_u == 2 ) &
	749	v(:,j,i) = v_init(:)
	750	IF( .NOT. neutral .AND. &
	751	( init_3d%lod_pt == 1 .OR. init_3d%lod_pt == 2 ) ) &
[3051]	752	pt(:,j,i) = pt_init(:)
[4130]	753	IF( humidity .AND. &
	754	( init_3d%lod_q == 1 .OR. init_3d%lod_q == 2 ) ) &
	755	q(:,j,i) = q_init(:)
[2696]	756	ENDDO
	757	ENDDO
	758	!
[3182]	759	!-- Set geostrophic wind components.
[2938]	760	IF ( init_3d%from_file_ug ) THEN
	761	ug(:) = init_3d%ug_init(:)
	762	ENDIF
	763	IF ( init_3d%from_file_vg ) THEN
	764	vg(:) = init_3d%vg_init(:)
	765	ENDIF
[3404]	766	!
	767	!-- Set bottom and top boundary condition for geostrophic wind
[2938]	768	ug(nzt+1) = ug(nzt)
	769	vg(nzt+1) = vg(nzt)
[3404]	770	ug(nzb) = ug(nzb+1)
	771	vg(nzb) = vg(nzb+1)
[2696]	772	!
	773	!-- Set inital w to 0
	774	w = 0.0_wp
	775
	776	IF ( passive_scalar ) THEN
	777	DO i = nxlg, nxrg
	778	DO j = nysg, nyng
	779	s(:,j,i) = s_init
	780	ENDDO
	781	ENDDO
	782	ENDIF
	783
	784	!
	785	!-- Set velocity components at non-atmospheric / oceanic grid points to
	786	!-- zero.
[4346]	787	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
	788	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
	789	w = MERGE( w, 0.0_wp, BTEST( wall_flags_total_0, 3 ) )
[2700]	790	!
	791	!-- Initialize surface variables, e.g. friction velocity, momentum
	792	!-- fluxes, etc.
	793	CALL init_surfaces
[2696]	794
[3987]	795	IF ( debug_output ) CALL debug_message( 'initializing with INIFOR', 'end' )
[2696]	796	!
	797	!-- Initialization via computed 1D-model profiles
	798	ELSEIF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
	799
[3987]	800	IF ( debug_output ) CALL debug_message( 'initializing with 1D model profiles', 'start' )
[1]	801	!
	802	!-- Use solutions of the 1D model as initial profiles,
	803	!-- start 1D model
	804	CALL init_1d_model
	805	!
	806	!-- Transfer initial profiles to the arrays of the 3D model
[667]	807	DO i = nxlg, nxrg
	808	DO j = nysg, nyng
[1]	809	pt(:,j,i) = pt_init
	810	u(:,j,i) = u1d
	811	v(:,j,i) = v1d
	812	ENDDO
	813	ENDDO
	814
[1960]	815	IF ( humidity ) THEN
[667]	816	DO i = nxlg, nxrg
	817	DO j = nysg, nyng
[1]	818	q(:,j,i) = q_init
	819	ENDDO
	820	ENDDO
	821	ENDIF
[2292]	822
[1960]	823	IF ( passive_scalar ) THEN
	824	DO i = nxlg, nxrg
	825	DO j = nysg, nyng
	826	s(:,j,i) = s_init
	827	ENDDO
	828	ENDDO
	829	ENDIF
[1]	830	!
	831	!-- Store initial profiles for output purposes etc.
[2696]	832	IF ( .NOT. constant_diffusion ) THEN
[1]	833	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	834	ENDIF
	835	!
[2696]	836	!-- Set velocities back to zero
[4346]	837	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
	838	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
[1]	839	!
[2696]	840	!-- WARNING: The extra boundary conditions set after running the
	841	!-- ------- 1D model impose an error on the divergence one layer
	842	!-- below the topography; need to correct later
	843	!-- ATTENTION: Provisional correction for Piacsek & Williams
	844	!-- --------- advection scheme: keep u and v zero one layer below
	845	!-- the topography.
	846	IF ( ibc_uv_b == 1 ) THEN
[667]	847	!
[2696]	848	!-- Neumann condition
	849	DO i = nxl-1, nxr+1
	850	DO j = nys-1, nyn+1
	851	u(nzb,j,i) = u(nzb+1,j,i)
	852	v(nzb,j,i) = v(nzb+1,j,i)
[1]	853	ENDDO
[2696]	854	ENDDO
[1]	855
	856	ENDIF
[2618]	857	!
	858	!-- Initialize surface variables, e.g. friction velocity, momentum
	859	!-- fluxes, etc.
	860	CALL init_surfaces
[1]	861
[3987]	862	IF ( debug_output ) CALL debug_message( 'initializing with 1D model profiles', 'end' )
[1384]	863
[1788]	864	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
[1]	865	THEN
[1241]	866
[3987]	867	IF ( debug_output ) CALL debug_message( 'initializing with constant profiles', 'start' )
[2259]	868
	869	!
[1]	870	!-- Use constructed initial profiles (velocity constant with height,
	871	!-- temperature profile with constant gradient)
[667]	872	DO i = nxlg, nxrg
	873	DO j = nysg, nyng
[1]	874	pt(:,j,i) = pt_init
	875	u(:,j,i) = u_init
	876	v(:,j,i) = v_init
	877	ENDDO
	878	ENDDO
	879	!
[2758]	880	!-- Mask topography
[4346]	881	u = MERGE( u, 0.0_wp, BTEST( wall_flags_total_0, 1 ) )
	882	v = MERGE( v, 0.0_wp, BTEST( wall_flags_total_0, 2 ) )
[2758]	883	!
[292]	884	!-- Set initial horizontal velocities at the lowest computational grid
	885	!-- levels to zero in order to avoid too small time steps caused by the
	886	!-- diffusion limit in the initial phase of a run (at k=1, dz/2 occurs
[2758]	887	!-- in the limiting formula!).
	888	!-- Please note, in case land- or urban-surface model is used and a
	889	!-- spinup is applied, masking the lowest computational level is not
	890	!-- possible as MOST as well as energy-balance parametrizations will not
	891	!-- work with zero wind velocity.
	892	IF ( ibc_uv_b /= 1 .AND. .NOT. spinup ) THEN
[1815]	893	DO i = nxlg, nxrg
	894	DO j = nysg, nyng
[2232]	895	DO k = nzb, nzt
	896	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, &
[4346]	897	BTEST( wall_flags_total_0(k,j,i), 20 ) )
[2232]	898	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, &
[4346]	899	BTEST( wall_flags_total_0(k,j,i), 21 ) )
[2232]	900	ENDDO
[1815]	901	ENDDO
	902	ENDDO
	903	ENDIF
[1]	904
[1960]	905	IF ( humidity ) THEN
[667]	906	DO i = nxlg, nxrg
	907	DO j = nysg, nyng
[1]	908	q(:,j,i) = q_init
	909	ENDDO
	910	ENDDO
	911	ENDIF
[1960]	912
	913	IF ( passive_scalar ) THEN
	914	DO i = nxlg, nxrg
	915	DO j = nysg, nyng
	916	s(:,j,i) = s_init
	917	ENDDO
	918	ENDDO
	919	ENDIF
[1]	920
[1920]	921	!
[1]	922	!-- Compute initial temperature field and other constants used in case
	923	!-- of a sloping surface
	924	IF ( sloping_surface ) CALL init_slope
[2618]	925	!
	926	!-- Initialize surface variables, e.g. friction velocity, momentum
	927	!-- fluxes, etc.
	928	CALL init_surfaces
[3579]	929
[3987]	930	IF ( debug_output ) CALL debug_message( 'initializing with constant profiles', 'end' )
[1384]	931
[1788]	932	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
[46]	933	THEN
[1384]	934
[3987]	935	IF ( debug_output ) CALL debug_message( 'initializing by user', 'start' )
[46]	936	!
[2618]	937	!-- Pre-initialize surface variables, i.e. setting start- and end-indices
	938	!-- at each (j,i)-location. Please note, this does not supersede
	939	!-- user-defined initialization of surface quantities.
	940	CALL init_surfaces
	941	!
[46]	942	!-- Initialization will completely be done by the user
	943	CALL user_init_3d_model
	944
[3987]	945	IF ( debug_output ) CALL debug_message( 'initializing by user', 'end' )
[1384]	946
[1]	947	ENDIF
[1384]	948
[3987]	949	IF ( debug_output ) CALL debug_message( 'initializing statistics, boundary conditions, etc.', 'start' )
[1384]	950
[667]	951	!
	952	!-- Bottom boundary
	953	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN
[1340]	954	u(nzb,:,:) = 0.0_wp
	955	v(nzb,:,:) = 0.0_wp
[667]	956	ENDIF
[1]	957
	958	!
[151]	959	!-- Apply channel flow boundary condition
[132]	960	IF ( TRIM( bc_uv_t ) == 'dirichlet_0' ) THEN
[1340]	961	u(nzt+1,:,:) = 0.0_wp
	962	v(nzt+1,:,:) = 0.0_wp
[132]	963	ENDIF
	964
	965	!
[1]	966	!-- Calculate virtual potential temperature
[1960]	967	IF ( humidity ) vpt = pt * ( 1.0_wp + 0.61_wp * q )
[1]	968
	969	!
[2696]	970	!-- Store initial profiles for output purposes etc.. Please note, in case of
	971	!-- initialization of u, v, w, pt, and q via output data derived from larger
	972	!-- scale models, data will not be horizontally homogeneous. Actually, a mean
	973	!-- profile should be calculated before.
[1]	974	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	975	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
[667]	976	IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2) THEN
[1340]	977	hom(nzb,1,5,:) = 0.0_wp
	978	hom(nzb,1,6,:) = 0.0_wp
[1]	979	ENDIF
	980	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	981
[75]	982	IF ( humidity ) THEN
[1]	983	!
	984	!-- Store initial profile of total water content, virtual potential
	985	!-- temperature
	986	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	987	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
[2696]	988	!
[3040]	989	!-- Store initial profile of mixing ratio and potential
[2696]	990	!-- temperature
[3274]	991	IF ( bulk_cloud_model .OR. cloud_droplets ) THEN
[1]	992	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	993	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	994	ENDIF
	995	ENDIF
	996
[2696]	997	!
	998	!-- Store initial scalar profile
[1]	999	IF ( passive_scalar ) THEN
[2513]	1000	hom(:,1,121,:) = SPREAD( s(:,nys,nxl), 2, statistic_regions+1 )
[1]	1001	ENDIF
	1002
	1003	!
[1400]	1004	!-- Initialize the random number generators (from numerical recipes)
	1005	CALL random_function_ini
[1429]	1006
[1400]	1007	IF ( random_generator == 'random-parallel' ) THEN
[3241]	1008	CALL init_parallel_random_generator( nx, nys, nyn, nxl, nxr )
[1400]	1009	ENDIF
	1010	!
[1179]	1011	!-- Set the reference state to be used in the buoyancy terms (for ocean runs
	1012	!-- the reference state will be set (overwritten) in init_ocean)
	1013	IF ( use_single_reference_value ) THEN
[1788]	1014	IF ( .NOT. humidity ) THEN
[1179]	1015	ref_state(:) = pt_reference
	1016	ELSE
	1017	ref_state(:) = vpt_reference
	1018	ENDIF
	1019	ELSE
[1788]	1020	IF ( .NOT. humidity ) THEN
[1179]	1021	ref_state(:) = pt_init(:)
	1022	ELSE
	1023	ref_state(:) = vpt(:,nys,nxl)
	1024	ENDIF
	1025	ENDIF
[152]	1026
	1027	!
[707]	1028	!-- For the moment, vertical velocity is zero
[1340]	1029	w = 0.0_wp
[1]	1030
	1031	!
	1032	!-- Initialize array sums (must be defined in first call of pres)
[1340]	1033	sums = 0.0_wp
[1]	1034
	1035	!
[707]	1036	!-- In case of iterative solvers, p must get an initial value
[1575]	1037	IF ( psolver(1:9) == 'multigrid' .OR. psolver == 'sor' ) p = 0.0_wp
[707]	1038	!
[1]	1039	!-- Impose vortex with vertical axis on the initial velocity profile
	1040	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	1041	CALL init_rankine
	1042	ENDIF
	1043
	1044	!
[3035]	1045	!-- Impose temperature anomaly (advection test only) or warm air bubble
	1046	!-- close to surface
	1047	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 .OR. &
	1048	INDEX( initializing_actions, 'initialize_bubble' ) /= 0 ) THEN
[1]	1049	CALL init_pt_anomaly
	1050	ENDIF
[3035]	1051
[1]	1052	!
	1053	!-- If required, change the surface temperature at the start of the 3D run
[1340]	1054	IF ( pt_surface_initial_change /= 0.0_wp ) THEN
[1]	1055	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	1056	ENDIF
	1057
	1058	!
	1059	!-- If required, change the surface humidity/scalar at the start of the 3D
	1060	!-- run
[1960]	1061	IF ( humidity .AND. q_surface_initial_change /= 0.0_wp ) &
[1]	1062	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
[1960]	1063
	1064	IF ( passive_scalar .AND. s_surface_initial_change /= 0.0_wp ) &
	1065	s(nzb,:,:) = s(nzb,:,:) + s_surface_initial_change
	1066
[1]	1067
	1068	!
	1069	!-- Initialize old and new time levels.
[2696]	1070	tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
	1071	pt_p = pt; u_p = u; v_p = v; w_p = w
[1]	1072
[1960]	1073	IF ( humidity ) THEN
[1340]	1074	tq_m = 0.0_wp
[1]	1075	q_p = q
	1076	ENDIF
[1960]	1077
	1078	IF ( passive_scalar ) THEN
	1079	ts_m = 0.0_wp
	1080	s_p = s
	1081	ENDIF
[1]	1082
[3987]	1083	IF ( debug_output ) CALL debug_message( 'initializing statistics, boundary conditions, etc.', 'end' )
[94]	1084
[1788]	1085	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' .OR. &
[2232]	1086	TRIM( initializing_actions ) == 'cyclic_fill' ) &
[1]	1087	THEN
[1384]	1088
[3987]	1089	IF ( debug_output ) CALL debug_message( 'initializing in case of restart / cyclic_fill', 'start' )
[1]	1090	!
[3609]	1091	!-- Initialize surface elements and its attributes, e.g. heat- and
	1092	!-- momentumfluxes, roughness, scaling parameters. As number of surface
	1093	!-- elements might be different between runs, e.g. in case of cyclic fill,
	1094	!-- and not all surface elements are read, surface elements need to be
	1095	!-- initialized before.
	1096	!-- Please note, in case of cyclic fill, surfaces should be initialized
	1097	!-- after restart data is read, else, individual settings of surface
	1098	!-- parameters will be overwritten from data of precursor run, hence,
	1099	!-- init_surfaces is called a second time after reading the restart data.
	1100	CALL init_surfaces
	1101	!
[767]	1102	!-- When reading data for cyclic fill of 3D prerun data files, read
	1103	!-- some of the global variables from the restart file which are required
	1104	!-- for initializing the inflow
[328]	1105	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
[559]	1106
[759]	1107	DO i = 0, io_blocks-1
	1108	IF ( i == io_group ) THEN
[2894]	1109	CALL rrd_read_parts_of_global
[759]	1110	ENDIF
	1111	#if defined( __parallel )
	1112	CALL MPI_BARRIER( comm2d, ierr )
	1113	#endif
	1114	ENDDO
[328]	1115
[767]	1116	ENDIF
	1117
[151]	1118	!
[2894]	1119	!-- Read processor specific binary data from restart file
[767]	1120	DO i = 0, io_blocks-1
	1121	IF ( i == io_group ) THEN
[2894]	1122	CALL rrd_local
[767]	1123	ENDIF
	1124	#if defined( __parallel )
	1125	CALL MPI_BARRIER( comm2d, ierr )
	1126	#endif
	1127	ENDDO
[4365]	1128
	1129
	1130	IF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1131
[3608]	1132	!
[4365]	1133	!-- In case of cyclic fill, call init_surfaces a second time, so that
	1134	!-- surface properties such as heat fluxes are initialized as prescribed.
[3609]	1135	CALL init_surfaces
[767]	1136
[328]	1137	!
[4365]	1138	!-- Overwrite u_init, v_init, pt_init, q_init and s_init with the
	1139	!-- horizontally mean (hom) vertical profiles from the end
	1140	!-- of the prerun, because these profiles shall be used as the reference
	1141	!-- state for the rayleigh damping and the pt_damping. This is especially
	1142	!-- important for the use of large_scale_subsidence, because the
	1143	!-- reference temperature in the free atmosphere changes in time.
	1144	u_init(:) = hom_sum(:,1,0)
	1145	v_init(:) = hom_sum(:,2,0)
	1146	pt_init(:) = hom_sum(:,4,0)
	1147	IF ( humidity ) &
	1148	q_init(:) = hom_sum(:,41,0)
	1149	IF ( passive_scalar ) &
	1150	s_init(:) = hom_sum(:,115,0)
	1151	ENDIF
	1152	!
[2550]	1153	!-- In case of complex terrain and cyclic fill method as initialization,
	1154	!-- shift initial data in the vertical direction for each point in the
	1155	!-- x-y-plane depending on local surface height
	1156	IF ( complex_terrain .AND. &
	1157	TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1158	DO i = nxlg, nxrg
	1159	DO j = nysg, nyng
[4168]	1160	nz_u_shift = topo_top_ind(j,i,1)
	1161	nz_v_shift = topo_top_ind(j,i,2)
	1162	nz_w_shift = topo_top_ind(j,i,3)
	1163	nz_s_shift = topo_top_ind(j,i,0)
[2550]	1164
	1165	u(nz_u_shift:nzt+1,j,i) = u(0:nzt+1-nz_u_shift,j,i)
	1166
	1167	v(nz_v_shift:nzt+1,j,i) = v(0:nzt+1-nz_v_shift,j,i)
	1168
	1169	w(nz_w_shift:nzt+1,j,i) = w(0:nzt+1-nz_w_shift,j,i)
	1170
	1171	p(nz_s_shift:nzt+1,j,i) = p(0:nzt+1-nz_s_shift,j,i)
	1172	pt(nz_s_shift:nzt+1,j,i) = pt(0:nzt+1-nz_s_shift,j,i)
	1173	ENDDO
	1174	ENDDO
	1175	ENDIF
	1176	!
[767]	1177	!-- Initialization of the turbulence recycling method
[1788]	1178	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
[767]	1179	turbulent_inflow ) THEN
	1180	!
	1181	!-- First store the profiles to be used at the inflow.
	1182	!-- These profiles are the (temporally) and horizontally averaged vertical
	1183	!-- profiles from the prerun. Alternatively, prescribed profiles
[4185]	1184	!-- for u,v-components can be used.
[3288]	1185	ALLOCATE( mean_inflow_profiles(nzb:nzt+1,1:num_mean_inflow_profiles) )
[151]	1186
[767]	1187	IF ( use_prescribed_profile_data ) THEN
	1188	mean_inflow_profiles(:,1) = u_init ! u
	1189	mean_inflow_profiles(:,2) = v_init ! v
	1190	ELSE
[328]	1191	mean_inflow_profiles(:,1) = hom_sum(:,1,0) ! u
	1192	mean_inflow_profiles(:,2) = hom_sum(:,2,0) ! v
[767]	1193	ENDIF
	1194	mean_inflow_profiles(:,4) = hom_sum(:,4,0) ! pt
[1960]	1195	IF ( humidity ) &
	1196	mean_inflow_profiles(:,6) = hom_sum(:,41,0) ! q
	1197	IF ( passive_scalar ) &
	1198	mean_inflow_profiles(:,7) = hom_sum(:,115,0) ! s
[4365]	1199
[2550]	1200	!
	1201	!-- In case of complex terrain, determine vertical displacement at inflow
	1202	!-- boundary and adjust mean inflow profiles
	1203	IF ( complex_terrain ) THEN
	1204	IF ( nxlg <= 0 .AND. nxrg >= 0 .AND. nysg <= 0 .AND. nyng >= 0 ) THEN
[4168]	1205	nz_u_shift_l = topo_top_ind(j,i,1)
	1206	nz_v_shift_l = topo_top_ind(j,i,2)
	1207	nz_w_shift_l = topo_top_ind(j,i,3)
	1208	nz_s_shift_l = topo_top_ind(j,i,0)
[2550]	1209	ELSE
	1210	nz_u_shift_l = 0
	1211	nz_v_shift_l = 0
	1212	nz_w_shift_l = 0
	1213	nz_s_shift_l = 0
	1214	ENDIF
[151]	1215
[2550]	1216	#if defined( __parallel )
	1217	CALL MPI_ALLREDUCE(nz_u_shift_l, nz_u_shift, 1, MPI_INTEGER, &
	1218	MPI_MAX, comm2d, ierr)
	1219	CALL MPI_ALLREDUCE(nz_v_shift_l, nz_v_shift, 1, MPI_INTEGER, &
	1220	MPI_MAX, comm2d, ierr)
	1221	CALL MPI_ALLREDUCE(nz_w_shift_l, nz_w_shift, 1, MPI_INTEGER, &
	1222	MPI_MAX, comm2d, ierr)
	1223	CALL MPI_ALLREDUCE(nz_s_shift_l, nz_s_shift, 1, MPI_INTEGER, &
	1224	MPI_MAX, comm2d, ierr)
	1225	#else
	1226	nz_u_shift = nz_u_shift_l
	1227	nz_v_shift = nz_v_shift_l
	1228	nz_w_shift = nz_w_shift_l
	1229	nz_s_shift = nz_s_shift_l
	1230	#endif
	1231
	1232	mean_inflow_profiles(:,1) = 0.0_wp
	1233	mean_inflow_profiles(nz_u_shift:nzt+1,1) = hom_sum(0:nzt+1-nz_u_shift,1,0) ! u
	1234
	1235	mean_inflow_profiles(:,2) = 0.0_wp
	1236	mean_inflow_profiles(nz_v_shift:nzt+1,2) = hom_sum(0:nzt+1-nz_v_shift,2,0) ! v
	1237
	1238	mean_inflow_profiles(nz_s_shift:nzt+1,4) = hom_sum(0:nzt+1-nz_s_shift,4,0) ! pt
	1239
	1240	ENDIF
	1241
[151]	1242	!
[767]	1243	!-- If necessary, adjust the horizontal flow field to the prescribed
	1244	!-- profiles
	1245	IF ( use_prescribed_profile_data ) THEN
	1246	DO i = nxlg, nxrg
[667]	1247	DO j = nysg, nyng
[328]	1248	DO k = nzb, nzt+1
[767]	1249	u(k,j,i) = u(k,j,i) - hom_sum(k,1,0) + u_init(k)
	1250	v(k,j,i) = v(k,j,i) - hom_sum(k,2,0) + v_init(k)
[328]	1251	ENDDO
[151]	1252	ENDDO
[767]	1253	ENDDO
	1254	ENDIF
[151]	1255
	1256	!
[767]	1257	!-- Use these mean profiles at the inflow (provided that Dirichlet
	1258	!-- conditions are used)
[3182]	1259	IF ( bc_dirichlet_l ) THEN
[767]	1260	DO j = nysg, nyng
	1261	DO k = nzb, nzt+1
	1262	u(k,j,nxlg:-1) = mean_inflow_profiles(k,1)
	1263	v(k,j,nxlg:-1) = mean_inflow_profiles(k,2)
[1340]	1264	w(k,j,nxlg:-1) = 0.0_wp
[767]	1265	pt(k,j,nxlg:-1) = mean_inflow_profiles(k,4)
[1960]	1266	IF ( humidity ) &
[1615]	1267	q(k,j,nxlg:-1) = mean_inflow_profiles(k,6)
[1960]	1268	IF ( passive_scalar ) &
	1269	s(k,j,nxlg:-1) = mean_inflow_profiles(k,7)
[767]	1270	ENDDO
	1271	ENDDO
	1272	ENDIF
	1273
[151]	1274	!
[767]	1275	!-- Calculate the damping factors to be used at the inflow. For a
	1276	!-- turbulent inflow the turbulent fluctuations have to be limited
	1277	!-- vertically because otherwise the turbulent inflow layer will grow
	1278	!-- in time.
[1340]	1279	IF ( inflow_damping_height == 9999999.9_wp ) THEN
[767]	1280	!
	1281	!-- Default: use the inversion height calculated by the prerun; if
	1282	!-- this is zero, inflow_damping_height must be explicitly
	1283	!-- specified.
[1340]	1284	IF ( hom_sum(nzb+6,pr_palm,0) /= 0.0_wp ) THEN
[767]	1285	inflow_damping_height = hom_sum(nzb+6,pr_palm,0)
	1286	ELSE
[1788]	1287	WRITE( message_string, * ) 'inflow_damping_height must be ', &
	1288	'explicitly specified because&the inversion height ', &
[767]	1289	'calculated by the prerun is zero.'
	1290	CALL message( 'init_3d_model', 'PA0318', 1, 2, 0, 6, 0 )
[292]	1291	ENDIF
[151]	1292
[767]	1293	ENDIF
	1294
[1340]	1295	IF ( inflow_damping_width == 9999999.9_wp ) THEN
[151]	1296	!
[767]	1297	!-- Default for the transition range: one tenth of the undamped
	1298	!-- layer
[1340]	1299	inflow_damping_width = 0.1_wp * inflow_damping_height
[151]	1300
[767]	1301	ENDIF
[151]	1302
[767]	1303	ALLOCATE( inflow_damping_factor(nzb:nzt+1) )
[151]	1304
[767]	1305	DO k = nzb, nzt+1
[151]	1306
[767]	1307	IF ( zu(k) <= inflow_damping_height ) THEN
[1340]	1308	inflow_damping_factor(k) = 1.0_wp
[996]	1309	ELSEIF ( zu(k) <= ( inflow_damping_height + inflow_damping_width ) ) THEN
[1340]	1310	inflow_damping_factor(k) = 1.0_wp - &
[996]	1311	( zu(k) - inflow_damping_height ) / &
	1312	inflow_damping_width
[767]	1313	ELSE
[1340]	1314	inflow_damping_factor(k) = 0.0_wp
[767]	1315	ENDIF
[151]	1316
[767]	1317	ENDDO
[151]	1318
[147]	1319	ENDIF
	1320
[152]	1321	!
[2696]	1322	!-- Inside buildings set velocities back to zero
[1788]	1323	IF ( TRIM( initializing_actions ) == 'cyclic_fill' .AND. &
[359]	1324	topography /= 'flat' ) THEN
	1325	!
[2696]	1326	!-- Inside buildings set velocities back to zero.
	1327	!-- Other scalars (pt, q, s, p, sa, ...) are ignored at present,
[359]	1328	!-- maybe revise later.
[1001]	1329	DO i = nxlg, nxrg
	1330	DO j = nysg, nyng
[2232]	1331	DO k = nzb, nzt
	1332	u(k,j,i) = MERGE( u(k,j,i), 0.0_wp, &
[4346]	1333	BTEST( wall_flags_total_0(k,j,i), 1 ) )
[2232]	1334	v(k,j,i) = MERGE( v(k,j,i), 0.0_wp, &
[4346]	1335	BTEST( wall_flags_total_0(k,j,i), 2 ) )
[2232]	1336	w(k,j,i) = MERGE( w(k,j,i), 0.0_wp, &
[4346]	1337	BTEST( wall_flags_total_0(k,j,i), 3 ) )
[2232]	1338	ENDDO
[359]	1339	ENDDO
[1001]	1340	ENDDO
[359]	1341
	1342	ENDIF
	1343
	1344	!
[1]	1345	!-- Calculate initial temperature field and other constants used in case
	1346	!-- of a sloping surface
	1347	IF ( sloping_surface ) CALL init_slope
	1348
	1349	!
	1350	!-- Initialize new time levels (only done in order to set boundary values
	1351	!-- including ghost points)
[2696]	1352	pt_p = pt; u_p = u; v_p = v; w_p = w
[1960]	1353	IF ( humidity ) THEN
[1053]	1354	q_p = q
	1355	ENDIF
[1960]	1356	IF ( passive_scalar ) s_p = s
[181]	1357	!
	1358	!-- Allthough tendency arrays are set in prognostic_equations, they have
	1359	!-- have to be predefined here because they are used (but multiplied with 0)
	1360	!-- there before they are set.
[2696]	1361	tpt_m = 0.0_wp; tu_m = 0.0_wp; tv_m = 0.0_wp; tw_m = 0.0_wp
[1960]	1362	IF ( humidity ) THEN
[1340]	1363	tq_m = 0.0_wp
[1053]	1364	ENDIF
[1960]	1365	IF ( passive_scalar ) ts_m = 0.0_wp
[181]	1366
[3987]	1367	IF ( debug_output ) CALL debug_message( 'initializing in case of restart / cyclic_fill', 'end' )
[1384]	1368
[1]	1369	ELSE
	1370	!
	1371	!-- Actually this part of the programm should not be reached
[254]	1372	message_string = 'unknown initializing problem'
	1373	CALL message( 'init_3d_model', 'PA0193', 1, 2, 0, 6, 0 )
[1]	1374	ENDIF
	1375
[151]	1376
	1377	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
[1]	1378	!
[151]	1379	!-- Initialize old timelevels needed for radiation boundary conditions
[3182]	1380	IF ( bc_radiation_l ) THEN
[151]	1381	u_m_l(:,:,:) = u(:,:,1:2)
	1382	v_m_l(:,:,:) = v(:,:,0:1)
	1383	w_m_l(:,:,:) = w(:,:,0:1)
	1384	ENDIF
[3182]	1385	IF ( bc_radiation_r ) THEN
[151]	1386	u_m_r(:,:,:) = u(:,:,nx-1:nx)
	1387	v_m_r(:,:,:) = v(:,:,nx-1:nx)
	1388	w_m_r(:,:,:) = w(:,:,nx-1:nx)
	1389	ENDIF
[3182]	1390	IF ( bc_radiation_s ) THEN
[151]	1391	u_m_s(:,:,:) = u(:,0:1,:)
	1392	v_m_s(:,:,:) = v(:,1:2,:)
	1393	w_m_s(:,:,:) = w(:,0:1,:)
	1394	ENDIF
[3182]	1395	IF ( bc_radiation_n ) THEN
[151]	1396	u_m_n(:,:,:) = u(:,ny-1:ny,:)
	1397	v_m_n(:,:,:) = v(:,ny-1:ny,:)
	1398	w_m_n(:,:,:) = w(:,ny-1:ny,:)
	1399	ENDIF
[667]	1400
[151]	1401	ENDIF
[680]	1402
[667]	1403	!
	1404	!-- Calculate the initial volume flow at the right and north boundary
[709]	1405	IF ( conserve_volume_flow ) THEN
[151]	1406
[767]	1407	IF ( use_prescribed_profile_data ) THEN
[667]	1408
[1340]	1409	volume_flow_initial_l = 0.0_wp
	1410	volume_flow_area_l = 0.0_wp
[732]	1411
[667]	1412	IF ( nxr == nx ) THEN
	1413	DO j = nys, nyn
[2232]	1414	DO k = nzb+1, nzt
[4346]	1415	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1416	u_init(k) * dzw(k) &
	1417	* MERGE( 1.0_wp, 0.0_wp, &
	1418	BTEST( wall_flags_total_0(k,j,nxr), 1 )&
[2232]	1419	)
	1420
[4346]	1421	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1422	* MERGE( 1.0_wp, 0.0_wp, &
	1423	BTEST( wall_flags_total_0(k,j,nxr), 1 )&
[2232]	1424	)
[767]	1425	ENDDO
	1426	ENDDO
	1427	ENDIF
	1428
	1429	IF ( nyn == ny ) THEN
	1430	DO i = nxl, nxr
[2232]	1431	DO k = nzb+1, nzt
[4346]	1432	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1433	v_init(k) * dzw(k) &
	1434	* MERGE( 1.0_wp, 0.0_wp, &
	1435	BTEST( wall_flags_total_0(k,nyn,i), 2 )&
[2232]	1436	)
[4346]	1437	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1438	* MERGE( 1.0_wp, 0.0_wp, &
	1439	BTEST( wall_flags_total_0(k,nyn,i), 2 )&
[2232]	1440	)
[767]	1441	ENDDO
	1442	ENDDO
	1443	ENDIF
	1444
	1445	#if defined( __parallel )
	1446	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1447	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1448	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1449	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1450
	1451	#else
	1452	volume_flow_initial = volume_flow_initial_l
	1453	volume_flow_area = volume_flow_area_l
	1454	#endif
	1455
	1456	ELSEIF ( TRIM( initializing_actions ) == 'cyclic_fill' ) THEN
	1457
[1340]	1458	volume_flow_initial_l = 0.0_wp
	1459	volume_flow_area_l = 0.0_wp
[767]	1460
	1461	IF ( nxr == nx ) THEN
	1462	DO j = nys, nyn
[2232]	1463	DO k = nzb+1, nzt
[4346]	1464	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1465	hom_sum(k,1,0) * dzw(k) &
	1466	* MERGE( 1.0_wp, 0.0_wp, &
	1467	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
[2232]	1468	)
[4346]	1469	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1470	* MERGE( 1.0_wp, 0.0_wp, &
	1471	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
[2232]	1472	)
[667]	1473	ENDDO
	1474	ENDDO
	1475	ENDIF
	1476
	1477	IF ( nyn == ny ) THEN
	1478	DO i = nxl, nxr
[2232]	1479	DO k = nzb+1, nzt
[4346]	1480	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1481	hom_sum(k,2,0) * dzw(k) &
	1482	* MERGE( 1.0_wp, 0.0_wp, &
	1483	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
[2232]	1484	)
[4346]	1485	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1486	* MERGE( 1.0_wp, 0.0_wp, &
	1487	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
[2232]	1488	)
[667]	1489	ENDDO
	1490	ENDDO
	1491	ENDIF
	1492
[732]	1493	#if defined( __parallel )
	1494	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1495	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1496	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1497	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1498
	1499	#else
	1500	volume_flow_initial = volume_flow_initial_l
	1501	volume_flow_area = volume_flow_area_l
	1502	#endif
	1503
[667]	1504	ELSEIF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	1505
[1340]	1506	volume_flow_initial_l = 0.0_wp
	1507	volume_flow_area_l = 0.0_wp
[732]	1508
[667]	1509	IF ( nxr == nx ) THEN
	1510	DO j = nys, nyn
[2232]	1511	DO k = nzb+1, nzt
[4346]	1512	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	1513	u(k,j,nx) * dzw(k) &
	1514	* MERGE( 1.0_wp, 0.0_wp, &
	1515	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
[2232]	1516	)
[4346]	1517	volume_flow_area_l(1) = volume_flow_area_l(1) + dzw(k) &
	1518	* MERGE( 1.0_wp, 0.0_wp, &
	1519	BTEST( wall_flags_total_0(k,j,nx), 1 ) &
[2232]	1520	)
[667]	1521	ENDDO
	1522	ENDDO
	1523	ENDIF
	1524
	1525	IF ( nyn == ny ) THEN
	1526	DO i = nxl, nxr
[2232]	1527	DO k = nzb+1, nzt
[4346]	1528	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	1529	v(k,ny,i) * dzw(k) &
	1530	* MERGE( 1.0_wp, 0.0_wp, &
	1531	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
[2232]	1532	)
[4346]	1533	volume_flow_area_l(2) = volume_flow_area_l(2) + dzw(k) &
	1534	* MERGE( 1.0_wp, 0.0_wp, &
	1535	BTEST( wall_flags_total_0(k,ny,i), 2 ) &
[2232]	1536	)
[667]	1537	ENDDO
	1538	ENDDO
	1539	ENDIF
	1540
	1541	#if defined( __parallel )
[732]	1542	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	1543	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	1544	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	1545	2, MPI_REAL, MPI_SUM, comm2d, ierr )
[667]	1546
	1547	#else
[732]	1548	volume_flow_initial = volume_flow_initial_l
	1549	volume_flow_area = volume_flow_area_l
[667]	1550	#endif
	1551
[732]	1552	ENDIF
	1553
[151]	1554	!
[709]	1555	!-- In case of 'bulk_velocity' mode, volume_flow_initial is calculated
	1556	!-- from u\|v_bulk instead
[680]	1557	IF ( TRIM( conserve_volume_flow_mode ) == 'bulk_velocity' ) THEN
	1558	volume_flow_initial(1) = u_bulk * volume_flow_area(1)
	1559	volume_flow_initial(2) = v_bulk * volume_flow_area(2)
	1560	ENDIF
[667]	1561
[680]	1562	ENDIF
[2232]	1563	!
[4150]	1564	!-- In the following, surface properties can be further initialized with
	1565	!-- input from static driver file.
	1566	!-- At the moment this affects only default surfaces. For example,
	1567	!-- roughness length or sensible / latent heat fluxes can be initialized
	1568	!-- heterogeneously for default surfaces. Therefore, a generic routine
	1569	!-- from netcdf_data_input_mod is called to read a 2D array.
	1570	IF ( input_pids_static ) THEN
	1571	!
[4151]	1572	!-- Allocate memory for possible static input
	1573	ALLOCATE( tmp_2d%var(nys:nyn,nxl:nxr) )
	1574	tmp_2d%var = 0.0_wp
	1575	!
[4150]	1576	!-- Open the static input file
[4151]	1577	#if defined( __netcdf )
[4150]	1578	CALL open_read_file( TRIM( input_file_static ) // &
	1579	TRIM( coupling_char ), &
[4186]	1580	pids_id )
[4150]	1581
[4186]	1582	CALL inquire_num_variables( pids_id, num_var_pids )
[4150]	1583	!
	1584	!-- Allocate memory to store variable names and read them
[4186]	1585	ALLOCATE( vars_pids(1:num_var_pids) )
	1586	CALL inquire_variable_names( pids_id, vars_pids )
[4150]	1587	!
	1588	!-- Input roughness length.
[4186]	1589	IF ( check_existence( vars_pids, 'z0' ) ) THEN
[4150]	1590	!
	1591	!-- Read _FillValue attribute
[4186]	1592	CALL get_attribute( pids_id, char_fill, tmp_2d%fill, &
[4150]	1593	.FALSE., 'z0' )
	1594	!
	1595	!-- Read variable
[4186]	1596	CALL get_variable( pids_id, 'z0', tmp_2d%var, &
[4150]	1597	nxl, nxr, nys, nyn )
	1598	!
	1599	!-- Initialize roughness length. Note, z0 will be only initialized at
	1600	!-- default-type surfaces. At natural or urban z0 is implicitly
	1601	!-- initialized bythe respective parameter lists.
	1602	!-- Initialize horizontal surface elements.
	1603	CALL init_single_surface_properties( surf_def_h(0)%z0, &
	1604	tmp_2d%var, &
	1605	surf_def_h(0)%ns, &
	1606	tmp_2d%fill, &
	1607	surf_def_h(0)%i, &
	1608	surf_def_h(0)%j )
	1609	!
	1610	!-- Initialize roughness also at vertical surface elements.
	1611	!-- Note, the actual 2D input arrays are only defined on the
	1612	!-- subdomain. Therefore, pass the index arrays with their respective
	1613	!-- offset values.
	1614	DO l = 0, 3
	1615	CALL init_single_surface_properties( &
	1616	surf_def_v(l)%z0, &
	1617	tmp_2d%var, &
	1618	surf_def_v(l)%ns, &
	1619	tmp_2d%fill, &
	1620	surf_def_v(l)%i + surf_def_v(l)%ioff, &
	1621	surf_def_v(l)%j + surf_def_v(l)%joff )
	1622	ENDDO
	1623
	1624	ENDIF
	1625	!
	1626	!-- Additional variables, e.g. shf, qsws, etc, can be initialized the
	1627	!-- same way.
	1628
	1629	!
[4187]	1630	!-- Finally, close the input file and deallocate temporary arrays
	1631	DEALLOCATE( vars_pids )
	1632
[4186]	1633	CALL close_input_file( pids_id )
[4151]	1634	#endif
	1635	DEALLOCATE( tmp_2d%var )
[4150]	1636	ENDIF
	1637	!
[2618]	1638	!-- Finally, if random_heatflux is set, disturb shf at horizontal
	1639	!-- surfaces. Actually, this should be done in surface_mod, where all other
	1640	!-- initializations of surface quantities are done. However, this
	1641	!-- would create a ring dependency, hence, it is done here. Maybe delete
	1642	!-- disturb_heatflux and tranfer the respective code directly into the
	1643	!-- initialization in surface_mod.
[2232]	1644	IF ( TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
	1645	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
[2618]	1646
[2232]	1647	IF ( use_surface_fluxes .AND. constant_heatflux .AND. &
	1648	random_heatflux ) THEN
	1649	IF ( surf_def_h(0)%ns >= 1 ) CALL disturb_heatflux( surf_def_h(0) )
	1650	IF ( surf_lsm_h%ns >= 1 ) CALL disturb_heatflux( surf_lsm_h )
	1651	IF ( surf_usm_h%ns >= 1 ) CALL disturb_heatflux( surf_usm_h )
	1652	ENDIF
	1653	ENDIF
[680]	1654
[787]	1655	!
[3747]	1656	!-- Compute total sum of grid points and the mean surface level height for each
	1657	!-- statistic region. These are mainly used for horizontal averaging of
	1658	!-- turbulence statistics.
[2696]	1659	!-- ngp_2dh: number of grid points of a horizontal cross section through the
[3747]	1660	!-- respective statistic region
	1661	!-- ngp_3d: number of grid points of the respective statistic region
[2696]	1662	ngp_2dh_outer_l = 0
	1663	ngp_2dh_outer = 0
	1664	ngp_2dh_s_inner_l = 0
	1665	ngp_2dh_s_inner = 0
	1666	ngp_2dh_l = 0
	1667	ngp_2dh = 0
	1668	ngp_3d_inner_l = 0.0_wp
	1669	ngp_3d_inner = 0
	1670	ngp_3d = 0
	1671	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
	1672
	1673	mean_surface_level_height = 0.0_wp
	1674	mean_surface_level_height_l = 0.0_wp
	1675	!
	1676	!-- To do: New concept for these non-topography grid points!
	1677	DO sr = 0, statistic_regions
	1678	DO i = nxl, nxr
	1679	DO j = nys, nyn
	1680	IF ( rmask(j,i,sr) == 1.0_wp ) THEN
	1681	!
	1682	!-- All xy-grid points
	1683	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1684	!
	1685	!-- Determine mean surface-level height. In case of downward-
	1686	!-- facing walls are present, more than one surface level exist.
	1687	!-- In this case, use the lowest surface-level height.
	1688	IF ( surf_def_h(0)%start_index(j,i) <= &
	1689	surf_def_h(0)%end_index(j,i) ) THEN
	1690	m = surf_def_h(0)%start_index(j,i)
	1691	k = surf_def_h(0)%k(m)
	1692	mean_surface_level_height_l(sr) = &
	1693	mean_surface_level_height_l(sr) + zw(k-1)
	1694	ENDIF
	1695	IF ( surf_lsm_h%start_index(j,i) <= &
	1696	surf_lsm_h%end_index(j,i) ) THEN
	1697	m = surf_lsm_h%start_index(j,i)
	1698	k = surf_lsm_h%k(m)
	1699	mean_surface_level_height_l(sr) = &
	1700	mean_surface_level_height_l(sr) + zw(k-1)
	1701	ENDIF
	1702	IF ( surf_usm_h%start_index(j,i) <= &
	1703	surf_usm_h%end_index(j,i) ) THEN
	1704	m = surf_usm_h%start_index(j,i)
	1705	k = surf_usm_h%k(m)
	1706	mean_surface_level_height_l(sr) = &
	1707	mean_surface_level_height_l(sr) + zw(k-1)
	1708	ENDIF
	1709
	1710	k_surf = k - 1
	1711
	1712	DO k = nzb, nzt+1
	1713	!
	1714	!-- xy-grid points above topography
	1715	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + &
[4346]	1716	MERGE( 1, 0, BTEST( wall_flags_total_0(k,j,i), 24 ) )
[2696]	1717
	1718	ngp_2dh_s_inner_l(k,sr) = ngp_2dh_s_inner_l(k,sr) + &
[4346]	1719	MERGE( 1, 0, BTEST( wall_flags_total_0(k,j,i), 22 ) )
[2696]	1720
	1721	ENDDO
	1722	!
	1723	!-- All grid points of the total domain above topography
	1724	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + ( nz - k_surf + 2 )
	1725
	1726
	1727
	1728	ENDIF
	1729	ENDDO
	1730	ENDDO
	1731	ENDDO
[3747]	1732
[2696]	1733	sr = statistic_regions + 1
	1734	#if defined( __parallel )
	1735	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1736	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
	1737	comm2d, ierr )
	1738	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1739	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
	1740	MPI_INTEGER, MPI_SUM, comm2d, ierr )
	1741	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1742	CALL MPI_ALLREDUCE( ngp_2dh_s_inner_l(0,0), ngp_2dh_s_inner(0,0), &
	1743	(nz+2)*sr, MPI_INTEGER, MPI_SUM, comm2d, ierr )
	1744	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1745	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner_tmp(0), sr, MPI_REAL, &
	1746	MPI_SUM, comm2d, ierr )
	1747	ngp_3d_inner = INT( ngp_3d_inner_tmp, KIND = SELECTED_INT_KIND( 18 ) )
	1748	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
	1749	CALL MPI_ALLREDUCE( mean_surface_level_height_l(0), &
	1750	mean_surface_level_height(0), sr, MPI_REAL, &
	1751	MPI_SUM, comm2d, ierr )
	1752	mean_surface_level_height = mean_surface_level_height / REAL( ngp_2dh )
	1753	#else
	1754	ngp_2dh = ngp_2dh_l
	1755	ngp_2dh_outer = ngp_2dh_outer_l
	1756	ngp_2dh_s_inner = ngp_2dh_s_inner_l
	1757	ngp_3d_inner = INT( ngp_3d_inner_l, KIND = SELECTED_INT_KIND( 18 ) )
	1758	mean_surface_level_height = mean_surface_level_height_l / REAL( ngp_2dh_l )
	1759	#endif
	1760
	1761	ngp_3d = INT ( ngp_2dh, KIND = SELECTED_INT_KIND( 18 ) ) * &
	1762	INT ( (nz + 2 ), KIND = SELECTED_INT_KIND( 18 ) )
	1763
	1764	!
	1765	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
	1766	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
	1767	!-- the respective subdomain lie below the surface topography
	1768	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
	1769	ngp_3d_inner = MAX( INT(1, KIND = SELECTED_INT_KIND( 18 )), &
	1770	ngp_3d_inner(:) )
	1771	ngp_2dh_s_inner = MAX( 1, ngp_2dh_s_inner(:,:) )
	1772
	1773	DEALLOCATE( mean_surface_level_height_l, ngp_2dh_l, ngp_2dh_outer_l, &
	1774	ngp_3d_inner_l, ngp_3d_inner_tmp )
	1775	!
[2232]	1776	!-- Initialize surface forcing corresponding to large-scale forcing. Therein,
	1777	!-- initialize heat-fluxes, etc. via datatype. Revise it later!
	1778	IF ( large_scale_forcing .AND. lsf_surf ) THEN
	1779	IF ( use_surface_fluxes .AND. constant_heatflux ) THEN
	1780	CALL ls_forcing_surf ( simulated_time )
	1781	ENDIF
	1782	ENDIF
	1783	!
[3347]	1784	!-- Initializae 3D offline nesting in COSMO model and read data from
	1785	!-- external NetCDF file.
	1786	IF ( nesting_offline ) CALL nesting_offl_init
	1787	!
[787]	1788	!-- Initialize quantities for special advections schemes
	1789	CALL init_advec
[680]	1790
[667]	1791	!
[680]	1792	!-- Impose random perturbation on the horizontal velocity field and then
	1793	!-- remove the divergences from the velocity field at the initial stage
[1788]	1794	IF ( create_disturbances .AND. disturbance_energy_limit /= 0.0_wp .AND. &
	1795	TRIM( initializing_actions ) /= 'read_restart_data' .AND. &
[680]	1796	TRIM( initializing_actions ) /= 'cyclic_fill' ) THEN
	1797
[3987]	1798	IF ( debug_output ) CALL debug_message( 'creating disturbances + applying pressure solver', 'start' )
[3849]	1799	!
	1800	!-- Needed for both disturb_field and pres
	1801	!$ACC DATA &
	1802	!$ACC CREATE(tend(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1803	!$ACC COPY(u(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1804	!$ACC COPY(v(nzb:nzt+1,nysg:nyng,nxlg:nxrg))
	1805
[2232]	1806	CALL disturb_field( 'u', tend, u )
	1807	CALL disturb_field( 'v', tend, v )
[1384]	1808
[3849]	1809	!$ACC DATA &
	1810	!$ACC CREATE(d(nzb+1:nzt,nys:nyn,nxl:nxr)) &
	1811	!$ACC COPY(w(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1812	!$ACC COPY(p(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
	1813	!$ACC COPYIN(rho_air(nzb:nzt+1), rho_air_zw(nzb:nzt+1)) &
	1814	!$ACC COPYIN(ddzu(1:nzt+1), ddzw(1:nzt+1)) &
[4346]	1815	!$ACC COPYIN(wall_flags_total_0(nzb:nzt+1,nysg:nyng,nxlg:nxrg)) &
[3849]	1816	!$ACC COPYIN(bc_h(0:1)) &
	1817	!$ACC COPYIN(bc_h(0)%i(1:bc_h(0)%ns)) &
	1818	!$ACC COPYIN(bc_h(0)%j(1:bc_h(0)%ns)) &
	1819	!$ACC COPYIN(bc_h(0)%k(1:bc_h(0)%ns)) &
	1820	!$ACC COPYIN(bc_h(1)%i(1:bc_h(1)%ns)) &
	1821	!$ACC COPYIN(bc_h(1)%j(1:bc_h(1)%ns)) &
	1822	!$ACC COPYIN(bc_h(1)%k(1:bc_h(1)%ns))
	1823
[680]	1824	n_sor = nsor_ini
	1825	CALL pres
	1826	n_sor = nsor
[1384]	1827
[3849]	1828	!$ACC END DATA
	1829	!$ACC END DATA
	1830
[3987]	1831	IF ( debug_output ) CALL debug_message( 'creating disturbances + applying pressure solver', 'end' )
	1832
[680]	1833	ENDIF
	1834
[3294]	1835	IF ( .NOT. ocean_mode ) THEN
[3274]	1836
	1837	ALLOCATE( hyp(nzb:nzt+1) )
	1838	ALLOCATE( d_exner(nzb:nzt+1) )
	1839	ALLOCATE( exner(nzb:nzt+1) )
	1840	ALLOCATE( hyrho(nzb:nzt+1) )
[1849]	1841	!
[3274]	1842	!-- Check temperature in case of too large domain height
	1843	DO k = nzb, nzt+1
	1844	IF ( ( pt_surface * exner_function(surface_pressure * 100.0_wp) - g/c_p * zu(k) ) < 0.0_wp ) THEN
	1845	WRITE( message_string, * ) 'absolute temperature < 0.0 at zu(', k, &
	1846	') = ', zu(k)
[3685]	1847	CALL message( 'init_3d_model', 'PA0142', 1, 2, 0, 6, 0 )
[3274]	1848	ENDIF
	1849	ENDDO
	1850
	1851	!
	1852	!-- Calculate vertical profile of the hydrostatic pressure (hyp)
	1853	hyp = barometric_formula(zu, pt_surface * exner_function(surface_pressure * 100.0_wp), surface_pressure * 100.0_wp)
	1854	d_exner = exner_function_invers(hyp)
	1855	exner = 1.0_wp / exner_function_invers(hyp)
	1856	hyrho = ideal_gas_law_rho_pt(hyp, pt_init)
	1857	!
	1858	!-- Compute reference density
	1859	rho_surface = ideal_gas_law_rho(surface_pressure * 100.0_wp, pt_surface * exner_function(surface_pressure * 100.0_wp))
	1860
[96]	1861	ENDIF
[1]	1862
	1863	!
	1864	!-- If required, initialize particles
[3159]	1865	IF ( agents_active ) CALL mas_init
	1866	!
[3937]	1867	!-- Initialization of synthetic turbulence generator
	1868	IF ( use_syn_turb_gen ) CALL stg_init
[2696]	1869	!
[3685]	1870	!-- Initializing actions for all other modules
	1871	CALL module_interface_init
[2696]	1872	!
[3685]	1873	!-- Initialize surface layer (done after LSM as roughness length are required
	1874	!-- for initialization
	1875	IF ( constant_flux_layer ) CALL init_surface_layer_fluxes
[2977]	1876	!
[3421]	1877	!-- Initialize surface data output
[3685]	1878	IF ( surface_output ) CALL surface_data_output_init
[3472]	1879	!
[673]	1880	!-- Initialize the ws-scheme.
[3448]	1881	IF ( ws_scheme_sca .OR. ws_scheme_mom ) CALL ws_init
[3711]	1882	!
	1883	!-- Perform post-initializing checks for all other modules
	1884	CALL module_interface_init_checks
[1]	1885
	1886	!
[709]	1887	!-- Setting weighting factors for calculation of perturbation pressure
[1762]	1888	!-- and turbulent quantities from the RK substeps
[709]	1889	IF ( TRIM(timestep_scheme) == 'runge-kutta-3' ) THEN ! for RK3-method
	1890
[1322]	1891	weight_substep(1) = 1._wp/6._wp
	1892	weight_substep(2) = 3._wp/10._wp
	1893	weight_substep(3) = 8._wp/15._wp
[709]	1894
[1322]	1895	weight_pres(1) = 1._wp/3._wp
	1896	weight_pres(2) = 5._wp/12._wp
	1897	weight_pres(3) = 1._wp/4._wp
[709]	1898
	1899	ELSEIF ( TRIM(timestep_scheme) == 'runge-kutta-2' ) THEN ! for RK2-method
	1900
[1322]	1901	weight_substep(1) = 1._wp/2._wp
	1902	weight_substep(2) = 1._wp/2._wp
[673]	1903
[1322]	1904	weight_pres(1) = 1._wp/2._wp
	1905	weight_pres(2) = 1._wp/2._wp
[709]	1906
[1001]	1907	ELSE ! for Euler-method
[709]	1908
[1340]	1909	weight_substep(1) = 1.0_wp
	1910	weight_pres(1) = 1.0_wp
[709]	1911
[673]	1912	ENDIF
	1913
	1914	!
[1]	1915	!-- Initialize Rayleigh damping factors
[1340]	1916	rdf = 0.0_wp
	1917	rdf_sc = 0.0_wp
	1918	IF ( rayleigh_damping_factor /= 0.0_wp ) THEN
[3294]	1919
	1920	IF ( .NOT. ocean_mode ) THEN
[108]	1921	DO k = nzb+1, nzt
	1922	IF ( zu(k) >= rayleigh_damping_height ) THEN
[1788]	1923	rdf(k) = rayleigh_damping_factor * &
[1340]	1924	( SIN( pi * 0.5_wp * ( zu(k) - rayleigh_damping_height ) &
[1788]	1925	/ ( zu(nzt) - rayleigh_damping_height ) ) &
[1]	1926	)**2
[108]	1927	ENDIF
	1928	ENDDO
	1929	ELSE
[3294]	1930	!
	1931	!-- In ocean mode, rayleigh damping is applied in the lower part of the
	1932	!-- model domain
[108]	1933	DO k = nzt, nzb+1, -1
	1934	IF ( zu(k) <= rayleigh_damping_height ) THEN
[1788]	1935	rdf(k) = rayleigh_damping_factor * &
[1340]	1936	( SIN( pi * 0.5_wp * ( rayleigh_damping_height - zu(k) ) &
[1788]	1937	/ ( rayleigh_damping_height - zu(nzb+1) ) ) &
[108]	1938	)**2
	1939	ENDIF
	1940	ENDDO
	1941	ENDIF
[3294]	1942
[1]	1943	ENDIF
[785]	1944	IF ( scalar_rayleigh_damping ) rdf_sc = rdf
[1]	1945
	1946	!
[240]	1947	!-- Initialize the starting level and the vertical smoothing factor used for
	1948	!-- the external pressure gradient
[1340]	1949	dp_smooth_factor = 1.0_wp
[240]	1950	IF ( dp_external ) THEN
	1951	!
	1952	!-- Set the starting level dp_level_ind_b only if it has not been set before
	1953	!-- (e.g. in init_grid).
	1954	IF ( dp_level_ind_b == 0 ) THEN
	1955	ind_array = MINLOC( ABS( dp_level_b - zu ) )
	1956	dp_level_ind_b = ind_array(1) - 1 + nzb
	1957	! MINLOC uses lower array bound 1
	1958	ENDIF
	1959	IF ( dp_smooth ) THEN
[1340]	1960	dp_smooth_factor(:dp_level_ind_b) = 0.0_wp
[240]	1961	DO k = dp_level_ind_b+1, nzt
[1340]	1962	dp_smooth_factor(k) = 0.5_wp * ( 1.0_wp + SIN( pi * &
	1963	( REAL( k - dp_level_ind_b, KIND=wp ) / &
	1964	REAL( nzt - dp_level_ind_b, KIND=wp ) - 0.5_wp ) ) )
[240]	1965	ENDDO
	1966	ENDIF
	1967	ENDIF
	1968
	1969	!
[978]	1970	!-- Initialize damping zone for the potential temperature in case of
	1971	!-- non-cyclic lateral boundaries. The damping zone has the maximum value
	1972	!-- at the inflow boundary and decreases to zero at pt_damping_width.
[1340]	1973	ptdf_x = 0.0_wp
	1974	ptdf_y = 0.0_wp
[1159]	1975	IF ( bc_lr_dirrad ) THEN
[996]	1976	DO i = nxl, nxr
[978]	1977	IF ( ( i * dx ) < pt_damping_width ) THEN
[1340]	1978	ptdf_x(i) = pt_damping_factor * ( SIN( pi * 0.5_wp * &
	1979	REAL( pt_damping_width - i * dx, KIND=wp ) / ( &
[1788]	1980	REAL( pt_damping_width, KIND=wp ) ) ) )**2
[73]	1981	ENDIF
	1982	ENDDO
[1159]	1983	ELSEIF ( bc_lr_raddir ) THEN
[996]	1984	DO i = nxl, nxr
[978]	1985	IF ( ( i * dx ) > ( nx * dx - pt_damping_width ) ) THEN
[1322]	1986	ptdf_x(i) = pt_damping_factor * &
[1340]	1987	SIN( pi * 0.5_wp * &
	1988	( ( i - nx ) * dx + pt_damping_width ) / &
	1989	REAL( pt_damping_width, KIND=wp ) )**2
[73]	1990	ENDIF
[978]	1991	ENDDO
[1159]	1992	ELSEIF ( bc_ns_dirrad ) THEN
[996]	1993	DO j = nys, nyn
[978]	1994	IF ( ( j * dy ) > ( ny * dy - pt_damping_width ) ) THEN
[1322]	1995	ptdf_y(j) = pt_damping_factor * &
[1340]	1996	SIN( pi * 0.5_wp * &
	1997	( ( j - ny ) * dy + pt_damping_width ) / &
	1998	REAL( pt_damping_width, KIND=wp ) )**2
[1]	1999	ENDIF
[978]	2000	ENDDO
[1159]	2001	ELSEIF ( bc_ns_raddir ) THEN
[996]	2002	DO j = nys, nyn
[978]	2003	IF ( ( j * dy ) < pt_damping_width ) THEN
[1322]	2004	ptdf_y(j) = pt_damping_factor * &
[1340]	2005	SIN( pi * 0.5_wp * &
	2006	( pt_damping_width - j * dy ) / &
	2007	REAL( pt_damping_width, KIND=wp ) )**2
[1]	2008	ENDIF
[73]	2009	ENDDO
[1]	2010	ENDIF
[51]	2011
[1]	2012	!
	2013	!-- Input binary data file is not needed anymore. This line must be placed
	2014	!-- after call of user_init!
	2015	CALL close_file( 13 )
[2934]	2016	!
	2017	!-- In case of nesting, put an barrier to assure that all parent and child
	2018	!-- domains finished initialization.
	2019	#if defined( __parallel )
	2020	IF ( nested_run ) CALL MPI_BARRIER( MPI_COMM_WORLD, ierr )
	2021	#endif
[1]	2022
[2934]	2023
[3987]	2024	CALL location_message( 'model initialization', 'finished' )
[1]	2025
	2026	END SUBROUTINE init_3d_model

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source: palm/trunk/SOURCE/init_3d_model.f90 @ 4471

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