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init_3d_model.f90 @ 125

Last change on this file since 125 was 110, checked in by raasch, 17 years ago

New:
---
Allows runs for a coupled atmosphere-ocean LES,
coupling frequency is controlled by new d3par-parameter dt_coupling,
the coupling mode (atmosphere_to_ocean or ocean_to_atmosphere) for the
respective processes is read from environment variable coupling_mode,
which is set by the mpiexec-command,
communication between the two models is done using the intercommunicator
comm_inter,
local files opened by the ocean model get the additional suffic "_O".
Assume saturation at k=nzb_s_inner(j,i) for atmosphere coupled to ocean.

A momentum flux can be set as top boundary condition using the new
inipar parameter top_momentumflux_u|v.

Non-cyclic boundary conditions can be used along all horizontal directions.

Quantities w*p* and w"e can be output as vertical profiles.

Initial profiles are reset to constant profiles in case that initializing_actions /= 'set_constant_profiles'. (init_rankine)

Optionally calculate km and kh from initial TKE e_init.

Changed:

Remaining variables iran changed to iran_part (advec_particles, init_particles).

In case that the presure solver is not called for every Runge-Kutta substep
(call_psolver_at_all_substeps = .F.), it is called after the first substep
instead of the last. In that case, random perturbations are also added to the
velocity field after the first substep.

Initialization of km,kh = 0.00001 for ocean = .T. (for ocean = .F. it remains 0.01).

Allow data_output_pr= q, wq, w"q", w*q* for humidity = .T. (instead of cloud_physics = .T.).

Errors:

Bugs from code parts for non-cyclic boundary conditions are removed: loops for
u and v are starting from index nxlu, nysv, respectively. The radiation boundary
condition is used for every Runge-Kutta substep. Velocity phase speeds for
the radiation boundary conditions are calculated for the first Runge-Kutta
substep only and reused for the further substeps. New arrays c_u, c_v, and c_w
are defined for this purpose. Several index errors are removed from the
radiation boundary condition code parts. Upper bounds for calculating
u_0 and v_0 (in production_e) are nxr+1 and nyn+1 because otherwise these
values are not available in case of non-cyclic boundary conditions.

+dots_num_palm in module user, +module netcdf_control in user_init (both in user_interface)

Bugfix: wrong sign removed from the buoyancy production term in the case use_reference = .T. (production_e)

Bugfix: Error message concerning output of particle concentration (pc) modified (check_parameters).

Bugfix: Rayleigh damping for ocean fixed.

Property svn:keywords set to Id

File size: 37.4 KB

Rev	Line
[1]	1	#if defined( __ibmy_special )
	2	@PROCESS NOOPTimize
	3	#endif
	4	SUBROUTINE init_3d_model
	5
	6	!------------------------------------------------------------------------------!
	7	! Actual revisions:
	8	! -----------------
[110]	9	!
[77]	10	!
	11	! Former revisions:
	12	! -----------------
	13	! $Id: init_3d_model.f90 110 2007-10-05 05:13:14Z raasch $
	14	!
[110]	15	! 108 2007-08-24 15:10:38Z letzel
	16	! Flux initialization in case of coupled runs, +momentum fluxes at top boundary,
	17	! +arrays for phase speed c_u, c_v, c_w, indices for u\|v\|w_m_l\|r changed
	18	! +qswst_remote in case of atmosphere model with humidity coupled to ocean
	19	! Rayleigh damping for ocean, optionally calculate km and kh from initial
	20	! TKE e_init
	21	!
[98]	22	! 97 2007-06-21 08:23:15Z raasch
	23	! Initialization of salinity, call of init_ocean
	24	!
[90]	25	! 87 2007-05-22 15:46:47Z raasch
	26	! var_hom and var_sum renamed pr_palm
	27	!
[77]	28	! 75 2007-03-22 09:54:05Z raasch
[73]	29	! Arrays for radiation boundary conditions are allocated (u_m_l, u_m_r, etc.),
	30	! bugfix for cases with the outflow damping layer extending over more than one
[75]	31	! subdomain, moisture renamed humidity,
	32	! new initializing action "by_user" calls user_init_3d_model,
[72]	33	! precipitation_amount/rate, ts_value are allocated, +module netcdf_control,
[51]	34	! initial velocities at nzb+1 are regarded for volume
	35	! flow control in case they have been set zero before (to avoid small timesteps)
[75]	36	! -uvmean_outflow, uxrp, vynp eliminated
[1]	37	!
[39]	38	! 19 2007-02-23 04:53:48Z raasch
	39	! +handling of top fluxes
	40	!
[3]	41	! RCS Log replace by Id keyword, revision history cleaned up
	42	!
[1]	43	! Revision 1.49 2006/08/22 15:59:07 raasch
	44	! No optimization of this file on the ibmy (Yonsei Univ.)
	45	!
	46	! Revision 1.1 1998/03/09 16:22:22 raasch
	47	! Initial revision
	48	!
	49	!
	50	! Description:
	51	! ------------
	52	! Allocation of arrays and initialization of the 3D model via
	53	! a) pre-run the 1D model
	54	! or
	55	! b) pre-set constant linear profiles
	56	! or
	57	! c) read values of a previous run
	58	!------------------------------------------------------------------------------!
	59
	60	USE arrays_3d
	61	USE averaging
[72]	62	USE cloud_parameters
[1]	63	USE constants
	64	USE control_parameters
	65	USE cpulog
	66	USE indices
	67	USE interfaces
	68	USE model_1d
[51]	69	USE netcdf_control
[1]	70	USE particle_attributes
	71	USE pegrid
	72	USE profil_parameter
	73	USE random_function_mod
	74	USE statistics
	75
	76	IMPLICIT NONE
	77
	78	INTEGER :: i, j, k, sr
	79
	80	INTEGER, DIMENSION(:), ALLOCATABLE :: ngp_2dh_l, ngp_3d_inner_l
	81
	82	INTEGER, DIMENSION(:,:), ALLOCATABLE :: ngp_2dh_outer_l
	83
	84	REAL, DIMENSION(1:2) :: volume_flow_area_l, volume_flow_initial_l
	85
	86
	87	!
	88	!-- Allocate arrays
	89	ALLOCATE( ngp_2dh(0:statistic_regions), ngp_2dh_l(0:statistic_regions), &
	90	ngp_3d(0:statistic_regions), &
	91	ngp_3d_inner(0:statistic_regions), &
	92	ngp_3d_inner_l(0:statistic_regions), &
	93	sums_divnew_l(0:statistic_regions), &
	94	sums_divold_l(0:statistic_regions) )
[75]	95	ALLOCATE( rdf(nzb+1:nzt) )
[87]	96	ALLOCATE( hom_sum(nzb:nzt+1,pr_palm+max_pr_user,0:statistic_regions), &
[1]	97	ngp_2dh_outer(nzb:nzt+1,0:statistic_regions), &
	98	ngp_2dh_outer_l(nzb:nzt+1,0:statistic_regions), &
	99	rmask(nys-1:nyn+1,nxl-1:nxr+1,0:statistic_regions), &
[87]	100	sums(nzb:nzt+1,pr_palm+max_pr_user), &
	101	sums_l(nzb:nzt+1,pr_palm+max_pr_user,0:threads_per_task-1), &
[1]	102	sums_l_l(nzb:nzt+1,0:statistic_regions,0:threads_per_task-1), &
	103	sums_up_fraction_l(10,3,0:statistic_regions), &
[48]	104	sums_wsts_bc_l(nzb:nzt+1,0:statistic_regions), &
	105	ts_value(var_ts,0:statistic_regions) )
[1]	106	ALLOCATE( km_damp_x(nxl-1:nxr+1), km_damp_y(nys-1:nyn+1) )
	107
[19]	108	ALLOCATE( rif_1(nys-1:nyn+1,nxl-1:nxr+1), shf_1(nys-1:nyn+1,nxl-1:nxr+1), &
	109	ts(nys-1:nyn+1,nxl-1:nxr+1), tswst_1(nys-1:nyn+1,nxl-1:nxr+1), &
	110	us(nys-1:nyn+1,nxl-1:nxr+1), usws_1(nys-1:nyn+1,nxl-1:nxr+1), &
[102]	111	uswst_1(nys-1:nyn+1,nxl-1:nxr+1), &
	112	vsws_1(nys-1:nyn+1,nxl-1:nxr+1), &
	113	vswst_1(nys-1:nyn+1,nxl-1:nxr+1), z0(nys-1:nyn+1,nxl-1:nxr+1) )
[1]	114
	115	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	116	!
	117	!-- Leapfrog scheme needs two timelevels of diffusion quantities
[19]	118	ALLOCATE( rif_2(nys-1:nyn+1,nxl-1:nxr+1), &
	119	shf_2(nys-1:nyn+1,nxl-1:nxr+1), &
	120	tswst_2(nys-1:nyn+1,nxl-1:nxr+1), &
	121	usws_2(nys-1:nyn+1,nxl-1:nxr+1), &
[102]	122	uswst_2(nys-1:nyn+1,nxl-1:nxr+1), &
	123	vswst_2(nys-1:nyn+1,nxl-1:nxr+1), &
[1]	124	vsws_2(nys-1:nyn+1,nxl-1:nxr+1) )
	125	ENDIF
	126
[75]	127	ALLOCATE( d(nzb+1:nzta,nys:nyna,nxl:nxra), &
	128	e_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	129	e_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	130	e_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	131	kh_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	132	km_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	133	p(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	134	pt_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	135	pt_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	136	pt_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	137	tend(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	138	u_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	139	u_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	140	u_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	141	v_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	142	v_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	143	v_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	144	w_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	145	w_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
[1]	146	w_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	147
	148	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	149	ALLOCATE( kh_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	150	km_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	151	ENDIF
	152
[75]	153	IF ( humidity .OR. passive_scalar ) THEN
[1]	154	!
[75]	155	!-- 2D-humidity/scalar arrays
[1]	156	ALLOCATE ( qs(nys-1:nyn+1,nxl-1:nxr+1), &
[19]	157	qsws_1(nys-1:nyn+1,nxl-1:nxr+1), &
	158	qswst_1(nys-1:nyn+1,nxl-1:nxr+1) )
[1]	159
	160	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
[19]	161	ALLOCATE( qsws_2(nys-1:nyn+1,nxl-1:nxr+1), &
	162	qswst_2(nys-1:nyn+1,nxl-1:nxr+1) )
[1]	163	ENDIF
	164	!
[75]	165	!-- 3D-humidity/scalar arrays
[1]	166	ALLOCATE( q_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	167	q_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	168	q_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	169
	170	!
[75]	171	!-- 3D-arrays needed for humidity only
	172	IF ( humidity ) THEN
[1]	173	ALLOCATE( vpt_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	174
	175	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	176	ALLOCATE( vpt_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	177	ENDIF
	178
	179	IF ( cloud_physics ) THEN
	180	!
	181	!-- Liquid water content
	182	ALLOCATE ( ql_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[72]	183	!
	184	!-- Precipitation amount and rate (only needed if output is switched)
	185	ALLOCATE( precipitation_amount(nys-1:nyn+1,nxl-1:nxr+1), &
	186	precipitation_rate(nys-1:nyn+1,nxl-1:nxr+1) )
[1]	187	ENDIF
	188
	189	IF ( cloud_droplets ) THEN
	190	!
	191	!-- Liquid water content, change in liquid water content,
	192	!-- real volume of particles (with weighting), volume of particles
	193	ALLOCATE ( ql_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	194	ql_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	195	ql_v(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	196	ql_vp(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	197	ENDIF
	198
	199	ENDIF
	200
	201	ENDIF
	202
[94]	203	IF ( ocean ) THEN
[95]	204	ALLOCATE( saswsb_1(nys-1:nyn+1,nxl-1:nxr+1), &
	205	saswst_1(nys-1:nyn+1,nxl-1:nxr+1) )
[96]	206	ALLOCATE( rho_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	207	sa_1(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
	208	sa_2(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1), &
[94]	209	sa_3(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
[96]	210	rho => rho_1 ! routine calc_mean_profile requires density to be a
	211	! pointer
[108]	212	IF ( humidity_remote ) THEN
	213	ALLOCATE( qswst_remote(nys-1:nyn+1,nxl-1:nxr+1) )
	214	qswst_remote = 0.0
	215	ENDIF
[94]	216	ENDIF
	217
[1]	218	!
	219	!-- 3D-array for storing the dissipation, needed for calculating the sgs
	220	!-- particle velocities
	221	IF ( use_sgs_for_particles ) THEN
	222	ALLOCATE ( diss(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) )
	223	ENDIF
	224
	225	IF ( dt_dosp /= 9999999.9 ) THEN
	226	ALLOCATE( spectrum_x( 1:nx/2, 1:10, 1:10 ), &
	227	spectrum_y( 1:ny/2, 1:10, 1:10 ) )
	228	ENDIF
	229
	230	!
[51]	231	!-- 4D-array for storing the Rif-values at vertical walls
	232	IF ( topography /= 'flat' ) THEN
	233	ALLOCATE( rif_wall(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1,1:4) )
	234	rif_wall = 0.0
	235	ENDIF
	236
	237	!
	238	!-- Velocities at nzb+1 needed for volume flow control
	239	IF ( conserve_volume_flow ) THEN
	240	ALLOCATE( u_nzb_p1_for_vfc(nys:nyn), v_nzb_p1_for_vfc(nxl:nxr) )
	241	u_nzb_p1_for_vfc = 0.0
	242	v_nzb_p1_for_vfc = 0.0
	243	ENDIF
	244
	245	!
[106]	246	!-- Arrays to store velocity data from t-dt and the phase speeds which
	247	!-- are needed for radiation boundary conditions
[73]	248	IF ( outflow_l ) THEN
[106]	249	ALLOCATE( u_m_l(nzb:nzt+1,nys-1:nyn+1,1:2), &
	250	v_m_l(nzb:nzt+1,nys-1:nyn+1,0:1), &
	251	w_m_l(nzb:nzt+1,nys-1:nyn+1,0:1) )
[73]	252	ENDIF
	253	IF ( outflow_r ) THEN
[106]	254	ALLOCATE( u_m_r(nzb:nzt+1,nys-1:nyn+1,nx-1:nx), &
	255	v_m_r(nzb:nzt+1,nys-1:nyn+1,nx-1:nx), &
	256	w_m_r(nzb:nzt+1,nys-1:nyn+1,nx-1:nx) )
[73]	257	ENDIF
[106]	258	IF ( outflow_l .OR. outflow_r ) THEN
	259	ALLOCATE( c_u(nzb:nzt+1,nys-1:nyn+1), c_v(nzb:nzt+1,nys-1:nyn+1), &
	260	c_w(nzb:nzt+1,nys-1:nyn+1) )
	261	ENDIF
[73]	262	IF ( outflow_s ) THEN
[106]	263	ALLOCATE( u_m_s(nzb:nzt+1,0:1,nxl-1:nxr+1), &
	264	v_m_s(nzb:nzt+1,1:2,nxl-1:nxr+1), &
	265	w_m_s(nzb:nzt+1,0:1,nxl-1:nxr+1) )
[73]	266	ENDIF
	267	IF ( outflow_n ) THEN
[106]	268	ALLOCATE( u_m_n(nzb:nzt+1,ny-1:ny,nxl-1:nxr+1), &
	269	v_m_n(nzb:nzt+1,ny-1:ny,nxl-1:nxr+1), &
	270	w_m_n(nzb:nzt+1,ny-1:ny,nxl-1:nxr+1) )
[73]	271	ENDIF
[106]	272	IF ( outflow_s .OR. outflow_n ) THEN
	273	ALLOCATE( c_u(nzb:nzt+1,nxl-1:nxr+1), c_v(nzb:nzt+1,nxl-1:nxr+1), &
	274	c_w(nzb:nzt+1,nxl-1:nxr+1) )
	275	ENDIF
[73]	276
	277	!
[1]	278	!-- Initial assignment of the pointers
	279	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	280
[19]	281	rif_m => rif_1; rif => rif_2
	282	shf_m => shf_1; shf => shf_2
	283	tswst_m => tswst_1; tswst => tswst_2
	284	usws_m => usws_1; usws => usws_2
[102]	285	uswst_m => uswst_1; uswst => uswst_2
[19]	286	vsws_m => vsws_1; vsws => vsws_2
[102]	287	vswst_m => vswst_1; vswst => vswst_2
[1]	288	e_m => e_1; e => e_2; e_p => e_3; te_m => e_3
	289	kh_m => kh_1; kh => kh_2
	290	km_m => km_1; km => km_2
	291	pt_m => pt_1; pt => pt_2; pt_p => pt_3; tpt_m => pt_3
	292	u_m => u_1; u => u_2; u_p => u_3; tu_m => u_3
	293	v_m => v_1; v => v_2; v_p => v_3; tv_m => v_3
	294	w_m => w_1; w => w_2; w_p => w_3; tw_m => w_3
	295
[75]	296	IF ( humidity .OR. passive_scalar ) THEN
[19]	297	qsws_m => qsws_1; qsws => qsws_2
	298	qswst_m => qswst_1; qswst => qswst_2
[1]	299	q_m => q_1; q => q_2; q_p => q_3; tq_m => q_3
[75]	300	IF ( humidity ) vpt_m => vpt_1; vpt => vpt_2
[1]	301	IF ( cloud_physics ) ql => ql_1
	302	IF ( cloud_droplets ) THEN
	303	ql => ql_1
	304	ql_c => ql_2
	305	ENDIF
	306	ENDIF
	307
	308	ELSE
	309
[19]	310	rif => rif_1
	311	shf => shf_1
	312	tswst => tswst_1
	313	usws => usws_1
[102]	314	uswst => uswst_1
[19]	315	vsws => vsws_1
[102]	316	vswst => vswst_1
[19]	317	e => e_1; e_p => e_2; te_m => e_3; e_m => e_3
	318	kh => kh_1
	319	km => km_1
	320	pt => pt_1; pt_p => pt_2; tpt_m => pt_3; pt_m => pt_3
	321	u => u_1; u_p => u_2; tu_m => u_3; u_m => u_3
	322	v => v_1; v_p => v_2; tv_m => v_3; v_m => v_3
	323	w => w_1; w_p => w_2; tw_m => w_3; w_m => w_3
[1]	324
[75]	325	IF ( humidity .OR. passive_scalar ) THEN
[1]	326	qsws => qsws_1
[19]	327	qswst => qswst_1
[94]	328	q => q_1; q_p => q_2; tq_m => q_3; q_m => q_3
[75]	329	IF ( humidity ) vpt => vpt_1
[1]	330	IF ( cloud_physics ) ql => ql_1
	331	IF ( cloud_droplets ) THEN
	332	ql => ql_1
	333	ql_c => ql_2
	334	ENDIF
	335	ENDIF
	336
[94]	337	IF ( ocean ) THEN
[95]	338	saswsb => saswsb_1
[94]	339	saswst => saswst_1
	340	sa => sa_1; sa_p => sa_2; tsa_m => sa_3
	341	ENDIF
	342
[1]	343	ENDIF
	344
	345	!
	346	!-- Initialize model variables
	347	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	348	!
	349	!-- First model run of a possible job queue.
	350	!-- Initial profiles of the variables must be computes.
	351	IF ( INDEX( initializing_actions, 'set_1d-model_profiles' ) /= 0 ) THEN
	352	!
	353	!-- Use solutions of the 1D model as initial profiles,
	354	!-- start 1D model
	355	CALL init_1d_model
	356	!
	357	!-- Transfer initial profiles to the arrays of the 3D model
	358	DO i = nxl-1, nxr+1
	359	DO j = nys-1, nyn+1
	360	e(:,j,i) = e1d
	361	kh(:,j,i) = kh1d
	362	km(:,j,i) = km1d
	363	pt(:,j,i) = pt_init
	364	u(:,j,i) = u1d
	365	v(:,j,i) = v1d
	366	ENDDO
	367	ENDDO
	368
[75]	369	IF ( humidity .OR. passive_scalar ) THEN
[1]	370	DO i = nxl-1, nxr+1
	371	DO j = nys-1, nyn+1
	372	q(:,j,i) = q_init
	373	ENDDO
	374	ENDDO
	375	ENDIF
	376
	377	IF ( .NOT. constant_diffusion ) THEN
	378	DO i = nxl-1, nxr+1
	379	DO j = nys-1, nyn+1
	380	e(:,j,i) = e1d
	381	ENDDO
	382	ENDDO
	383	!
	384	!-- Store initial profiles for output purposes etc.
	385	hom(:,1,25,:) = SPREAD( l1d, 2, statistic_regions+1 )
	386
	387	IF ( prandtl_layer ) THEN
	388	rif = rif1d(nzb+1)
	389	ts = 0.0 ! could actually be computed more accurately in the
	390	! 1D model. Update when opportunity arises.
	391	us = us1d
	392	usws = usws1d
	393	vsws = vsws1d
	394	ELSE
	395	ts = 0.0 ! must be set, because used in
	396	rif = 0.0 ! flowste
	397	us = 0.0
	398	usws = 0.0
	399	vsws = 0.0
	400	ENDIF
	401
	402	ELSE
	403	e = 0.0 ! must be set, because used in
	404	rif = 0.0 ! flowste
	405	ts = 0.0
	406	us = 0.0
	407	usws = 0.0
	408	vsws = 0.0
	409	ENDIF
[102]	410	uswst = top_momentumflux_u
	411	vswst = top_momentumflux_v
[1]	412
	413	!
	414	!-- In every case qs = 0.0 (see also pt)
	415	!-- This could actually be computed more accurately in the 1D model.
	416	!-- Update when opportunity arises!
[75]	417	IF ( humidity .OR. passive_scalar ) qs = 0.0
[1]	418
	419	!
	420	!-- inside buildings set velocities back to zero
	421	IF ( topography /= 'flat' ) THEN
	422	DO i = nxl-1, nxr+1
	423	DO j = nys-1, nyn+1
	424	u(nzb:nzb_u_inner(j,i),j,i) = 0.0
	425	v(nzb:nzb_v_inner(j,i),j,i) = 0.0
	426	ENDDO
	427	ENDDO
	428	!
	429	!-- WARNING: The extra boundary conditions set after running the
	430	!-- ------- 1D model impose an error on the divergence one layer
	431	!-- below the topography; need to correct later
	432	!-- ATTENTION: Provisional correction for Piacsek & Williams
	433	!-- --------- advection scheme: keep u and v zero one layer below
	434	!-- the topography.
	435	IF ( ibc_uv_b == 0 ) THEN
	436	!
	437	!-- Satisfying the Dirichlet condition with an extra layer below
	438	!-- the surface where the u and v component change their sign.
	439	DO i = nxl-1, nxr+1
	440	DO j = nys-1, nyn+1
	441	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = -u(1,j,i)
	442	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = -v(1,j,i)
	443	ENDDO
	444	ENDDO
	445
	446	ELSE
	447	!
	448	!-- Neumann condition
	449	DO i = nxl-1, nxr+1
	450	DO j = nys-1, nyn+1
	451	IF ( nzb_u_inner(j,i) == 0 ) u(0,j,i) = u(1,j,i)
	452	IF ( nzb_v_inner(j,i) == 0 ) v(0,j,i) = v(1,j,i)
	453	ENDDO
	454	ENDDO
	455
	456	ENDIF
	457
	458	ENDIF
	459
	460	ELSEIF ( INDEX(initializing_actions, 'set_constant_profiles') /= 0 ) &
	461	THEN
	462	!
	463	!-- Use constructed initial profiles (velocity constant with height,
	464	!-- temperature profile with constant gradient)
	465	DO i = nxl-1, nxr+1
	466	DO j = nys-1, nyn+1
	467	pt(:,j,i) = pt_init
	468	u(:,j,i) = u_init
	469	v(:,j,i) = v_init
	470	ENDDO
	471	ENDDO
[75]	472
[1]	473	!
[51]	474	!-- Set initial horizontal velocities at the lowest computational grid levels
	475	!-- to zero in order to avoid too small time steps caused by the diffusion
[1]	476	!-- limit in the initial phase of a run (at k=1, dz/2 occurs in the
[51]	477	!-- limiting formula!). The original values are stored to be later used for
	478	!-- volume flow control.
[1]	479	DO i = nxl-1, nxr+1
	480	DO j = nys-1, nyn+1
	481	u(nzb:nzb_u_inner(j,i)+1,j,i) = 0.0
	482	v(nzb:nzb_v_inner(j,i)+1,j,i) = 0.0
	483	ENDDO
	484	ENDDO
[51]	485	IF ( conserve_volume_flow ) THEN
	486	IF ( nxr == nx ) THEN
	487	DO j = nys, nyn
	488	k = nzb_u_inner(j,nx) + 1
	489	u_nzb_p1_for_vfc(j) = u_init(k) * dzu(k)
	490	ENDDO
	491	ENDIF
	492	IF ( nyn == ny ) THEN
	493	DO i = nxl, nxr
	494	k = nzb_v_inner(ny,i) + 1
	495	v_nzb_p1_for_vfc(i) = v_init(k) * dzu(k)
	496	ENDDO
	497	ENDIF
	498	ENDIF
[1]	499
[75]	500	IF ( humidity .OR. passive_scalar ) THEN
[1]	501	DO i = nxl-1, nxr+1
	502	DO j = nys-1, nyn+1
	503	q(:,j,i) = q_init
	504	ENDDO
	505	ENDDO
	506	ENDIF
	507
[94]	508	IF ( ocean ) THEN
	509	DO i = nxl-1, nxr+1
	510	DO j = nys-1, nyn+1
	511	sa(:,j,i) = sa_init
	512	ENDDO
	513	ENDDO
	514	ENDIF
[1]	515
	516	IF ( constant_diffusion ) THEN
	517	km = km_constant
	518	kh = km / prandtl_number
[108]	519	e = 0.0
	520	ELSEIF ( e_init > 0.0 ) THEN
	521	DO k = nzb+1, nzt
	522	km(k,:,:) = 0.1 * l_grid(k) * SQRT( e_init )
	523	ENDDO
	524	km(nzb,:,:) = km(nzb+1,:,:)
	525	km(nzt+1,:,:) = km(nzt,:,:)
	526	kh = km / prandtl_number
	527	e = e_init
[1]	528	ELSE
[108]	529	IF ( .NOT. ocean ) THEN
	530	kh = 0.01 ! there must exist an initial diffusion, because
	531	km = 0.01 ! otherwise no TKE would be produced by the
	532	! production terms, as long as not yet
	533	! e = (u/cm)*2 at k=nzb+1
	534	ELSE
	535	kh = 0.00001
	536	km = 0.00001
	537	ENDIF
	538	e = 0.0
[1]	539	ENDIF
[102]	540	rif = 0.0
	541	ts = 0.0
	542	us = 0.0
	543	usws = 0.0
	544	uswst = top_momentumflux_u
	545	vsws = 0.0
	546	vswst = top_momentumflux_v
[75]	547	IF ( humidity .OR. passive_scalar ) qs = 0.0
[1]	548
	549	!
	550	!-- Compute initial temperature field and other constants used in case
	551	!-- of a sloping surface
	552	IF ( sloping_surface ) CALL init_slope
	553
[46]	554	ELSEIF ( INDEX(initializing_actions, 'by_user') /= 0 ) &
	555	THEN
	556	!
	557	!-- Initialization will completely be done by the user
	558	CALL user_init_3d_model
	559
[1]	560	ENDIF
	561
	562	!
	563	!-- Calculate virtual potential temperature
[75]	564	IF ( humidity ) vpt = pt * ( 1.0 + 0.61 * q )
[1]	565
	566	!
	567	!-- Store initial profiles for output purposes etc.
	568	hom(:,1,5,:) = SPREAD( u(:,nys,nxl), 2, statistic_regions+1 )
	569	hom(:,1,6,:) = SPREAD( v(:,nys,nxl), 2, statistic_regions+1 )
	570	IF ( ibc_uv_b == 0 ) THEN
	571	hom(nzb,1,5,:) = -hom(nzb+1,1,5,:) ! due to satisfying the Dirichlet
	572	hom(nzb,1,6,:) = -hom(nzb+1,1,6,:) ! condition with an extra layer
	573	! below the surface where the u and v component change their sign
	574	ENDIF
	575	hom(:,1,7,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	576	hom(:,1,23,:) = SPREAD( km(:,nys,nxl), 2, statistic_regions+1 )
	577	hom(:,1,24,:) = SPREAD( kh(:,nys,nxl), 2, statistic_regions+1 )
	578
[97]	579	IF ( ocean ) THEN
	580	!
	581	!-- Store initial salinity profile
	582	hom(:,1,26,:) = SPREAD( sa(:,nys,nxl), 2, statistic_regions+1 )
	583	ENDIF
[1]	584
[75]	585	IF ( humidity ) THEN
[1]	586	!
	587	!-- Store initial profile of total water content, virtual potential
	588	!-- temperature
	589	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	590	hom(:,1,29,:) = SPREAD( vpt(:,nys,nxl), 2, statistic_regions+1 )
	591	IF ( cloud_physics .OR. cloud_droplets ) THEN
	592	!
	593	!-- Store initial profile of specific humidity and potential
	594	!-- temperature
	595	hom(:,1,27,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	596	hom(:,1,28,:) = SPREAD( pt(:,nys,nxl), 2, statistic_regions+1 )
	597	ENDIF
	598	ENDIF
	599
	600	IF ( passive_scalar ) THEN
	601	!
	602	!-- Store initial scalar profile
	603	hom(:,1,26,:) = SPREAD( q(:,nys,nxl), 2, statistic_regions+1 )
	604	ENDIF
	605
	606	!
[19]	607	!-- Initialize fluxes at bottom surface
[1]	608	IF ( use_surface_fluxes ) THEN
	609
	610	IF ( constant_heatflux ) THEN
	611	!
	612	!-- Heat flux is prescribed
	613	IF ( random_heatflux ) THEN
	614	CALL disturb_heatflux
	615	ELSE
	616	shf = surface_heatflux
	617	!
	618	!-- Over topography surface_heatflux is replaced by wall_heatflux(0)
	619	IF ( TRIM( topography ) /= 'flat' ) THEN
	620	DO i = nxl-1, nxr+1
	621	DO j = nys-1, nyn+1
	622	IF ( nzb_s_inner(j,i) /= 0 ) THEN
	623	shf(j,i) = wall_heatflux(0)
	624	ENDIF
	625	ENDDO
	626	ENDDO
	627	ENDIF
	628	ENDIF
	629	IF ( ASSOCIATED( shf_m ) ) shf_m = shf
	630	ENDIF
	631
	632	!
	633	!-- Determine the near-surface water flux
[75]	634	IF ( humidity .OR. passive_scalar ) THEN
[1]	635	IF ( constant_waterflux ) THEN
	636	qsws = surface_waterflux
	637	IF ( ASSOCIATED( qsws_m ) ) qsws_m = qsws
	638	ENDIF
	639	ENDIF
	640
	641	ENDIF
	642
	643	!
[19]	644	!-- Initialize fluxes at top surface
[94]	645	!-- Currently, only the heatflux and salinity flux can be prescribed.
	646	!-- The latent flux is zero in this case!
[19]	647	IF ( use_top_fluxes ) THEN
	648
	649	IF ( constant_top_heatflux ) THEN
	650	!
	651	!-- Heat flux is prescribed
	652	tswst = top_heatflux
	653	IF ( ASSOCIATED( tswst_m ) ) tswst_m = tswst
	654
[75]	655	IF ( humidity .OR. passive_scalar ) THEN
[19]	656	qswst = 0.0
	657	IF ( ASSOCIATED( qswst_m ) ) qswst_m = qswst
	658	ENDIF
[94]	659
	660	IF ( ocean ) THEN
[95]	661	saswsb = bottom_salinityflux
[94]	662	saswst = top_salinityflux
	663	ENDIF
[102]	664	ENDIF
[19]	665
[102]	666	!
	667	!-- Initialization in case of a coupled model run
	668	IF ( coupling_mode == 'ocean_to_atmosphere' ) THEN
	669	tswst = 0.0
	670	IF ( ASSOCIATED( tswst_m ) ) tswst_m = tswst
	671	ENDIF
	672
[19]	673	ENDIF
	674
	675	!
[1]	676	!-- Initialize Prandtl layer quantities
	677	IF ( prandtl_layer ) THEN
	678
	679	z0 = roughness_length
	680
	681	IF ( .NOT. constant_heatflux ) THEN
	682	!
	683	!-- Surface temperature is prescribed. Here the heat flux cannot be
	684	!-- simply estimated, because therefore rif, u* and theta* would have
	685	!-- to be computed by iteration. This is why the heat flux is assumed
	686	!-- to be zero before the first time step. It approaches its correct
	687	!-- value in the course of the first few time steps.
	688	shf = 0.0
	689	IF ( ASSOCIATED( shf_m ) ) shf_m = 0.0
	690	ENDIF
	691
[75]	692	IF ( humidity .OR. passive_scalar ) THEN
[1]	693	IF ( .NOT. constant_waterflux ) THEN
	694	qsws = 0.0
	695	IF ( ASSOCIATED( qsws_m ) ) qsws_m = 0.0
	696	ENDIF
	697	ENDIF
	698
	699	ENDIF
	700
	701	!
	702	!-- Calculate the initial volume flow at the right and north boundary
	703	IF ( conserve_volume_flow ) THEN
	704
	705	volume_flow_initial_l = 0.0
	706	volume_flow_area_l = 0.0
	707
	708	IF ( nxr == nx ) THEN
	709	DO j = nys, nyn
	710	DO k = nzb_2d(j,nx) + 1, nzt
	711	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	712	u(k,j,nx) * dzu(k)
	713	volume_flow_area_l(1) = volume_flow_area_l(1) + dzu(k)
	714	ENDDO
[51]	715	!
	716	!-- Correction if velocity at nzb+1 has been set zero further above
	717	volume_flow_initial_l(1) = volume_flow_initial_l(1) + &
	718	u_nzb_p1_for_vfc(j)
[1]	719	ENDDO
	720	ENDIF
	721
	722	IF ( nyn == ny ) THEN
	723	DO i = nxl, nxr
	724	DO k = nzb_2d(ny,i) + 1, nzt
	725	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	726	v(k,ny,i) * dzu(k)
	727	volume_flow_area_l(2) = volume_flow_area_l(2) + dzu(k)
	728	ENDDO
[51]	729	!
	730	!-- Correction if velocity at nzb+1 has been set zero further above
	731	volume_flow_initial_l(2) = volume_flow_initial_l(2) + &
	732	v_nzb_p1_for_vfc(i)
[1]	733	ENDDO
	734	ENDIF
	735
	736	#if defined( __parallel )
	737	CALL MPI_ALLREDUCE( volume_flow_initial_l(1), volume_flow_initial(1),&
	738	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	739	CALL MPI_ALLREDUCE( volume_flow_area_l(1), volume_flow_area(1), &
	740	2, MPI_REAL, MPI_SUM, comm2d, ierr )
	741	#else
	742	volume_flow_initial = volume_flow_initial_l
	743	volume_flow_area = volume_flow_area_l
	744	#endif
	745	ENDIF
	746
	747	!
	748	!-- For the moment, perturbation pressure and vertical velocity are zero
	749	p = 0.0; w = 0.0
	750
	751	!
	752	!-- Initialize array sums (must be defined in first call of pres)
	753	sums = 0.0
	754
	755	!
[72]	756	!-- Treating cloud physics, liquid water content and precipitation amount
	757	!-- are zero at beginning of the simulation
	758	IF ( cloud_physics ) THEN
	759	ql = 0.0
	760	IF ( precipitation ) precipitation_amount = 0.0
	761	ENDIF
[1]	762
	763	!
	764	!-- Initialize spectra
	765	IF ( dt_dosp /= 9999999.9 ) THEN
	766	spectrum_x = 0.0
	767	spectrum_y = 0.0
	768	ENDIF
	769
	770	!
	771	!-- Impose vortex with vertical axis on the initial velocity profile
	772	IF ( INDEX( initializing_actions, 'initialize_vortex' ) /= 0 ) THEN
	773	CALL init_rankine
	774	ENDIF
	775
	776	!
	777	!-- Impose temperature anomaly (advection test only)
	778	IF ( INDEX( initializing_actions, 'initialize_ptanom' ) /= 0 ) THEN
	779	CALL init_pt_anomaly
	780	ENDIF
	781
	782	!
	783	!-- If required, change the surface temperature at the start of the 3D run
	784	IF ( pt_surface_initial_change /= 0.0 ) THEN
	785	pt(nzb,:,:) = pt(nzb,:,:) + pt_surface_initial_change
	786	ENDIF
	787
	788	!
	789	!-- If required, change the surface humidity/scalar at the start of the 3D
	790	!-- run
[75]	791	IF ( ( humidity .OR. passive_scalar ) .AND. &
[1]	792	q_surface_initial_change /= 0.0 ) THEN
	793	q(nzb,:,:) = q(nzb,:,:) + q_surface_initial_change
	794	ENDIF
	795
	796	!
	797	!-- Initialize the random number generator (from numerical recipes)
	798	CALL random_function_ini
	799
	800	!
	801	!-- Impose random perturbation on the horizontal velocity field and then
	802	!-- remove the divergences from the velocity field
	803	IF ( create_disturbances ) THEN
[75]	804	CALL disturb_field( nzb_u_inner, tend, u )
	805	CALL disturb_field( nzb_v_inner, tend, v )
[1]	806	n_sor = nsor_ini
	807	CALL pres
	808	n_sor = nsor
	809	ENDIF
	810
	811	!
	812	!-- Once again set the perturbation pressure explicitly to zero in order to
	813	!-- assure that it does not generate any divergences in the first time step.
	814	!-- At t=0 the velocity field is free of divergence (as constructed above).
	815	!-- Divergences being created during a time step are not yet known and thus
	816	!-- cannot be corrected during the time step yet.
	817	p = 0.0
	818
	819	!
	820	!-- Initialize old and new time levels.
	821	IF ( timestep_scheme(1:5) /= 'runge' ) THEN
	822	e_m = e; pt_m = pt; u_m = u; v_m = v; w_m = w; kh_m = kh; km_m = km
	823	ELSE
	824	te_m = 0.0; tpt_m = 0.0; tu_m = 0.0; tv_m = 0.0; tw_m = 0.0
	825	ENDIF
	826	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
	827
[75]	828	IF ( humidity .OR. passive_scalar ) THEN
[1]	829	IF ( ASSOCIATED( q_m ) ) q_m = q
	830	IF ( timestep_scheme(1:5) == 'runge' ) tq_m = 0.0
	831	q_p = q
[75]	832	IF ( humidity .AND. ASSOCIATED( vpt_m ) ) vpt_m = vpt
[1]	833	ENDIF
	834
[94]	835	IF ( ocean ) THEN
	836	tsa_m = 0.0
	837	sa_p = sa
	838	ENDIF
	839
[73]	840	!
	841	!-- Initialize old timelevels needed for radiation boundary conditions
	842	IF ( outflow_l ) THEN
[106]	843	u_m_l(:,:,:) = u(:,:,1:2)
	844	v_m_l(:,:,:) = v(:,:,0:1)
	845	w_m_l(:,:,:) = w(:,:,0:1)
[73]	846	ENDIF
	847	IF ( outflow_r ) THEN
[106]	848	u_m_r(:,:,:) = u(:,:,nx-1:nx)
	849	v_m_r(:,:,:) = v(:,:,nx-1:nx)
	850	w_m_r(:,:,:) = w(:,:,nx-1:nx)
[73]	851	ENDIF
	852	IF ( outflow_s ) THEN
[106]	853	u_m_s(:,:,:) = u(:,0:1,:)
	854	v_m_s(:,:,:) = v(:,1:2,:)
	855	w_m_s(:,:,:) = w(:,0:1,:)
[73]	856	ENDIF
	857	IF ( outflow_n ) THEN
[106]	858	u_m_n(:,:,:) = u(:,ny-1:ny,:)
	859	v_m_n(:,:,:) = v(:,ny-1:ny,:)
	860	w_m_n(:,:,:) = w(:,ny-1:ny,:)
[73]	861	ENDIF
	862
[1]	863	ELSEIF ( TRIM( initializing_actions ) == 'read_restart_data' ) &
	864	THEN
	865	!
	866	!-- Read binary data from restart file
	867	CALL read_3d_binary
	868
	869	!
	870	!-- Calculate initial temperature field and other constants used in case
	871	!-- of a sloping surface
	872	IF ( sloping_surface ) CALL init_slope
	873
	874	!
	875	!-- Initialize new time levels (only done in order to set boundary values
	876	!-- including ghost points)
	877	e_p = e; pt_p = pt; u_p = u; v_p = v; w_p = w
[75]	878	IF ( humidity .OR. passive_scalar ) q_p = q
[94]	879	IF ( ocean ) sa_p = sa
[1]	880
	881	ELSE
	882	!
	883	!-- Actually this part of the programm should not be reached
	884	IF ( myid == 0 ) PRINT*,'+++ init_3d_model: unknown initializing ', &
	885	'problem'
	886	CALL local_stop
	887	ENDIF
	888
	889	!
	890	!-- If required, initialize dvrp-software
	891	IF ( dt_dvrp /= 9999999.9 ) CALL init_dvrp
	892
[96]	893	IF ( ocean ) THEN
[1]	894	!
[96]	895	!-- Initialize quantities needed for the ocean model
	896	CALL init_ocean
	897	ELSE
	898	!
	899	!-- Initialize quantities for handling cloud physics
	900	!-- This routine must be called before init_particles, because
	901	!-- otherwise, array pt_d_t, needed in data_output_dvrp (called by
	902	!-- init_particles) is not defined.
	903	CALL init_cloud_physics
	904	ENDIF
[1]	905
	906	!
	907	!-- If required, initialize particles
[63]	908	IF ( particle_advection ) CALL init_particles
[1]	909
	910	!
	911	!-- Initialize quantities for special advections schemes
	912	CALL init_advec
	913
	914	!
	915	!-- Initialize Rayleigh damping factors
	916	rdf = 0.0
	917	IF ( rayleigh_damping_factor /= 0.0 ) THEN
[108]	918	IF ( .NOT. ocean ) THEN
	919	DO k = nzb+1, nzt
	920	IF ( zu(k) >= rayleigh_damping_height ) THEN
	921	rdf(k) = rayleigh_damping_factor * &
[1]	922	( SIN( pi * 0.5 * ( zu(k) - rayleigh_damping_height ) &
	923	/ ( zu(nzt) - rayleigh_damping_height ) )&
	924	)**2
[108]	925	ENDIF
	926	ENDDO
	927	ELSE
	928	DO k = nzt, nzb+1, -1
	929	IF ( zu(k) <= rayleigh_damping_height ) THEN
	930	rdf(k) = rayleigh_damping_factor * &
	931	( SIN( pi * 0.5 * ( rayleigh_damping_height - zu(k) ) &
	932	/ ( rayleigh_damping_height - zu(nzb+1)))&
	933	)**2
	934	ENDIF
	935	ENDDO
	936	ENDIF
[1]	937	ENDIF
	938
	939	!
	940	!-- Initialize diffusivities used within the outflow damping layer in case of
	941	!-- non-cyclic lateral boundaries. A linear increase is assumed over the first
	942	!-- half of the width of the damping layer
[73]	943	IF ( bc_lr == 'dirichlet/radiation' ) THEN
[1]	944
	945	DO i = nxl-1, nxr+1
[73]	946	IF ( i >= nx - outflow_damping_width ) THEN
	947	km_damp_x(i) = km_damp_max * MIN( 1.0, &
	948	( i - ( nx - outflow_damping_width ) ) / &
	949	REAL( outflow_damping_width/2 ) &
	950	)
	951	ELSE
	952	km_damp_x(i) = 0.0
	953	ENDIF
	954	ENDDO
[1]	955
[73]	956	ELSEIF ( bc_lr == 'radiation/dirichlet' ) THEN
[1]	957
[73]	958	DO i = nxl-1, nxr+1
	959	IF ( i <= outflow_damping_width ) THEN
	960	km_damp_x(i) = km_damp_max * MIN( 1.0, &
	961	( outflow_damping_width - i ) / &
	962	REAL( outflow_damping_width/2 ) &
	963	)
	964	ELSE
	965	km_damp_x(i) = 0.0
	966	ENDIF
	967	ENDDO
[1]	968
[73]	969	ENDIF
[1]	970
[73]	971	IF ( bc_ns == 'dirichlet/radiation' ) THEN
[1]	972
[73]	973	DO j = nys-1, nyn+1
	974	IF ( j >= ny - outflow_damping_width ) THEN
	975	km_damp_y(j) = km_damp_max * MIN( 1.0, &
	976	( j - ( ny - outflow_damping_width ) ) / &
	977	REAL( outflow_damping_width/2 ) &
	978	)
	979	ELSE
	980	km_damp_y(j) = 0.0
[1]	981	ENDIF
	982	ENDDO
	983
[73]	984	ELSEIF ( bc_ns == 'radiation/dirichlet' ) THEN
[1]	985
	986	DO j = nys-1, nyn+1
[73]	987	IF ( j <= outflow_damping_width ) THEN
	988	km_damp_y(j) = km_damp_max * MIN( 1.0, &
	989	( outflow_damping_width - j ) / &
	990	REAL( outflow_damping_width/2 ) &
	991	)
	992	ELSE
	993	km_damp_y(j) = 0.0
[1]	994	ENDIF
[73]	995	ENDDO
[1]	996
	997	ENDIF
	998
	999	!
	1000	!-- Initialize local summation arrays for UP flow_statistics. This is necessary
	1001	!-- because they may not yet have been initialized when they are called from
	1002	!-- flow_statistics (or - depending on the chosen model run - are never
	1003	!-- initialized)
	1004	sums_divnew_l = 0.0
	1005	sums_divold_l = 0.0
	1006	sums_l_l = 0.0
	1007	sums_up_fraction_l = 0.0
	1008	sums_wsts_bc_l = 0.0
	1009
	1010	!
	1011	!-- Pre-set masks for regional statistics. Default is the total model domain.
	1012	rmask = 1.0
	1013
	1014	!
[51]	1015	!-- User-defined initializing actions. Check afterwards, if maximum number
	1016	!-- of allowed timeseries is not exceeded
[1]	1017	CALL user_init
	1018
[51]	1019	IF ( dots_num > dots_max ) THEN
	1020	IF ( myid == 0 ) THEN
	1021	PRINT*, '+++ user_init: number of time series quantities exceeds', &
	1022	' its maximum of dots_max = ', dots_max
	1023	PRINT*, ' Please increase dots_max in modules.f90.'
	1024	ENDIF
	1025	CALL local_stop
	1026	ENDIF
	1027
[1]	1028	!
	1029	!-- Input binary data file is not needed anymore. This line must be placed
	1030	!-- after call of user_init!
	1031	CALL close_file( 13 )
	1032
	1033	!
	1034	!-- Compute total sum of active mask grid points
	1035	!-- ngp_2dh: number of grid points of a horizontal cross section through the
	1036	!-- total domain
	1037	!-- ngp_3d: number of grid points of the total domain
	1038	!-- Note: The lower vertical index nzb_s_outer imposes a small error on the 2D
	1039	!-- ---- averages of staggered variables such as u and v due to the topography
	1040	!-- arrangement on the staggered grid. Maybe revise later.
	1041	ngp_2dh_outer_l = 0
	1042	ngp_2dh_outer = 0
	1043	ngp_2dh_l = 0
	1044	ngp_2dh = 0
	1045	ngp_3d_inner_l = 0
	1046	ngp_3d_inner = 0
	1047	ngp_3d = 0
[87]	1048	ngp_sums = ( nz + 2 ) * ( pr_palm + max_pr_user )
[1]	1049
	1050	DO sr = 0, statistic_regions
	1051	DO i = nxl, nxr
	1052	DO j = nys, nyn
	1053	IF ( rmask(j,i,sr) == 1.0 ) THEN
	1054	!
	1055	!-- All xy-grid points
	1056	ngp_2dh_l(sr) = ngp_2dh_l(sr) + 1
	1057	!
	1058	!-- xy-grid points above topography
	1059	DO k = nzb_s_outer(j,i), nz + 1
	1060	ngp_2dh_outer_l(k,sr) = ngp_2dh_outer_l(k,sr) + 1
	1061	ENDDO
	1062	!
	1063	!-- All grid points of the total domain above topography
	1064	ngp_3d_inner_l(sr) = ngp_3d_inner_l(sr) + &
	1065	( nz - nzb_s_inner(j,i) + 2 )
	1066	ENDIF
	1067	ENDDO
	1068	ENDDO
	1069	ENDDO
	1070
	1071	sr = statistic_regions + 1
	1072	#if defined( __parallel )
	1073	CALL MPI_ALLREDUCE( ngp_2dh_l(0), ngp_2dh(0), sr, MPI_INTEGER, MPI_SUM, &
	1074	comm2d, ierr )
	1075	CALL MPI_ALLREDUCE( ngp_2dh_outer_l(0,0), ngp_2dh_outer(0,0), (nz+2)*sr, &
	1076	MPI_INTEGER, MPI_SUM, comm2d, ierr )
	1077	CALL MPI_ALLREDUCE( ngp_3d_inner_l(0), ngp_3d_inner(0), sr, MPI_INTEGER, &
	1078	MPI_SUM, comm2d, ierr )
	1079	#else
	1080	ngp_2dh = ngp_2dh_l
	1081	ngp_2dh_outer = ngp_2dh_outer_l
	1082	ngp_3d_inner = ngp_3d_inner_l
	1083	#endif
	1084
	1085	ngp_3d = ngp_2dh * ( nz + 2 )
	1086
	1087	!
	1088	!-- Set a lower limit of 1 in order to avoid zero divisions in flow_statistics,
	1089	!-- buoyancy, etc. A zero value will occur for cases where all grid points of
	1090	!-- the respective subdomain lie below the surface topography
	1091	ngp_2dh_outer = MAX( 1, ngp_2dh_outer(:,:) )
	1092	ngp_3d_inner = MAX( 1, ngp_3d_inner(:) )
	1093
	1094	DEALLOCATE( ngp_2dh_l, ngp_2dh_outer_l, ngp_3d_inner_l )
	1095
	1096
	1097	END SUBROUTINE init_3d_model

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source: palm/trunk/SOURCE/init_3d_model.f90 @ 125

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