filter_topo.F90 File Reference

This program does ??? More...

#include <netcdf.inc>

Go to the source code of this file.

Functions/Subroutines
subroutine	cart_to_latlon (np, q, xs, ys)
	??? More...
subroutine	cell_center2 (q1, q2, q3, q4, e2)
	??? More...
subroutine	check (status)
	Check results of netCDF call. More...
subroutine	compute_filter_constants
	Compute resolution-dependent values for the filtering. More...
real function	cos_angle (p1, p2, p3)
	??? More...
subroutine	del2_cubed_sphere (is, ie, js, je, isd, ied, jsd, jed, npx, npy, ntiles, q, area, dx, dy, dxc, dyc, sin_sg, nmax, cd, zero_ocean, mask, nested, regional)
	??? More...
subroutine	del4_cubed_sphere (is, ie, js, je, isd, ied, jsd, jed, npx, npy, ntiles, q, area, dx, dy, dxc, dyc, sin_sg, nmax, zero_ocean, mask, nested, regional)
	??? More...
subroutine	fill_agrid_scalar_corners (q, ng, npx, npy, isd, jsd, fill)
	??? More...
subroutine	fill_agrid_xy_corners (x, y, ng, npx, npy, isd, jsd)
	??? More...
subroutine	fill_bgrid_scalar_corners (q, ng, npx, npy, isd, jsd, fill)
	??? More...
subroutine	fill_cubic_grid_halo (data, data2, halo, ioff, joff, sign1, sign2)
	This routine fill the halo points for the cubic grid. More...
subroutine	fill_dgrid_xy_corners (x, y, ng, npx, npy, isd, jsd)
	??? More...
program	filter_topo
	This program does ??? More...
subroutine	fv3_zs_filter (is, ie, js, je, isd, ied, jsd, jed, npx, npy, npx_global, ntiles, grid_type, stretch_fac, nested, area, dxa, dya, dx, dy, dxc, dyc, sin_sg, phis, regional)
	??? More...
real function	get_area (p1, p4, p2, p3, radius)
	??? More...
real function	great_circle_dist (q1, q2, radius)
	??? More...
subroutine	handle_err (status, string)
	??? More...
subroutine	latlon2xyz (p, e)
	??? More...
subroutine	mid_pt3_cart (p1, p2, e)
	??? More...
subroutine	mid_pt_sphere (p1, p2, pm)
	??? More...
subroutine	read_grid_file (regional)
	??? More...
subroutine	read_namelist
	Reads the namelist file, write namelist to log file. More...
subroutine	read_topo_file (regional)
	??? More...
real function	spherical_angle (p1, p2, p3)
	??? More...
subroutine	two_delta_filter (is, ie, js, je, isd, ied, jsd, jed, npx, npy, ntiles, q, area, dx, dy, dxa, dya, dxc, dyc, sin_sg, cd, zero_ocean, check_slope, filter_type, grid_type, mask, nested, ntmax, regional)
	??? More...
subroutine	write_topo_file (is, ie, js, je, ntiles, q, regional)
	Replace the topo_field. More...

Detailed Description

This program does ???

Author

GFDL Programmer

Definition in file filter_topo.F90.

Function/Subroutine Documentation

subroutine filter_topo::cart_to_latlon	(	integer, intent(in)	np,
		real, dimension(3,np), intent(inout)	q,
		real, dimension(np), intent(inout)	xs,
		real, dimension(np), intent(inout)	ys
	)

???

Parameters

[in]	np	???
[in]	q	???
[in]	xs	???
[in]	ys	???

Author

GFDL Programmer

Definition at line 497 of file filter_topo.F90.

Referenced by cell_center2(), and mid_pt_sphere().

subroutine filter_topo::cell_center2	(	real, dimension(2), intent(in)	q1,
		real, dimension(2), intent(in)	q2,
		real, dimension(2), intent(in)	q3,
		real, dimension(2), intent(in)	q4,
		real, dimension(2), intent(out)	e2
	)

???

Parameters

[in]	q1	???
[in]	q2	???
[in]	q3	???
[in]	q4	???
[in]	e2	???

Author

GFDL Programmer

Definition at line 598 of file filter_topo.F90.

References cart_to_latlon(), and latlon2xyz().

Referenced by read_grid_file().

subroutine filter_topo::check

(

integer, intent(in)

status

)

Check results of netCDF call.

Parameters

[in]

status

return code to check

Author

GFDL Programmer

Definition at line 1985 of file filter_topo.F90.

Referenced by global_equiv_resol(), regional_grid(), and shave_nc().

subroutine filter_topo::compute_filter_constants

(

)

Compute resolution-dependent values for the filtering.

Author

GFDL Programmer

Definition at line 2001 of file filter_topo.F90.

Referenced by filter_topo().

real function filter_topo::cos_angle	(	real, dimension(3), intent(in)	p1,
		real, dimension(3), intent(in)	p2,
		real, dimension(3), intent(in)	p3
	)

???

Parameters

[in]	p1	???
[in]	p2	???
[in]	p3	???

Returns

???

Author

GFDL Programmer

Definition at line 544 of file filter_topo.F90.

Referenced by read_grid_file().

subroutine filter_topo::del2_cubed_sphere	(	integer, intent(in)	is,
		integer, intent(in)	ie,
		integer, intent(in)	js,
		integer, intent(in)	je,
		integer, intent(in)	isd,
		integer, intent(in)	ied,
		integer, intent(in)	jsd,
		integer, intent(in)	jed,
		integer, intent(in)	npx,
		integer, intent(in)	npy,
		integer, intent(in)	ntiles,
		real, dimension(is-ng:ie+ng, js-ng:je+ng, ntiles), intent(inout)	q,
		real, dimension(isd:ied, jsd:jed, ntiles), intent(in)	area,
		real, dimension(isd:ied, jsd:jed+1, ntiles), intent(in)	dx,
		real, dimension(isd:ied+1,jsd:jed, ntiles), intent(in)	dy,
		real, dimension(isd:ied+1,jsd:jed, ntiles), intent(in)	dxc,
		real, dimension(isd:ied, jsd:jed+1, ntiles), intent(in)	dyc,
		real, dimension(4,isd:ied,jsd:jed, ntiles), intent(in)	sin_sg,
		integer, intent(in)	nmax,
		real, intent(in)	cd,
		logical, intent(in)	zero_ocean,
		real, dimension(isd:ied, jsd:jed, ntiles), intent(in)	mask,
		logical, intent(in)	nested,
		logical, intent(in)	regional
	)

???

Parameters

[in]	is	???
[in]	ie	???
[in]	js	???
[in]	je	???
[in]	isd	???
[in]	ied	???
[in]	jsd	???
[in]	jed	???
[in]	npx	???
[in]	npy	???
[in]	ntiles	???
[in]	q	???
[in]	area	???
[in]	dx	???
[in]	dy	???
[in]	dxc	???
[in]	dyc	???
[in]	sin_sg	???
[in]	nmax	???
[in]	cd	???
[in]	zero_ocean	???
[in]	mask	???
[in]	nested	???
[in]	regional	???

Author

GFDL Programmer

Definition at line 1579 of file filter_topo.F90.

References fill_cubic_grid_halo().

subroutine filter_topo::del4_cubed_sphere	(	integer, intent(in)	is,
		integer, intent(in)	ie,
		integer, intent(in)	js,
		integer, intent(in)	je,
		integer, intent(in)	isd,
		integer, intent(in)	ied,
		integer, intent(in)	jsd,
		integer, intent(in)	jed,
		integer, intent(in)	npx,
		integer, intent(in)	npy,
		integer, intent(in)	ntiles,
		real, dimension(isd:ied, jsd:jed, ntiles), intent(inout)	q,
		real, dimension(isd:ied, jsd:jed, ntiles), intent(in)	area,
		real, dimension(isd:ied, jsd:jed+1, ntiles), intent(in)	dx,
		real, dimension(isd:ied+1,jsd:jed, ntiles), intent(in)	dy,
		real, dimension(isd:ied+1,jsd:jed, ntiles), intent(in)	dxc,
		real, dimension(isd:ied, jsd:jed+1, ntiles), intent(in)	dyc,
		real, dimension(4,isd:ied,jsd:jed, ntiles), intent(in)	sin_sg,
		integer, intent(in)	nmax,
		logical, intent(in)	zero_ocean,
		real, dimension(isd:ied, jsd:jed, ntiles), intent(in)	mask,
		logical, intent(in)	nested,
		logical, intent(in)	regional
	)

???

Parameters

[in]	is	???
[in]	ie	???
[in]	js	???
[in]	je	???
[in]	isd	???
[in]	ied	???
[in]	jsd	???
[in]	jed	???
[in]	npx	???
[in]	npy	???
[in]	ntiles	???
[in]	q	???
[in]	area	???
[in]	dx	???
[in]	dy	???
[in]	dxc	???
[in]	dyc	???
[in]	sin_sg	???
[in]	nmax	???
[in]	zero_ocean	???
[in]	mask	???
[in]	nested	???
[in]	regional	???

Author

GFDL Programmer

Definition at line 1702 of file filter_topo.F90.

References fill_cubic_grid_halo().

Referenced by fv3_zs_filter().

subroutine filter_topo::fill_agrid_scalar_corners	(	real, dimension(isd:,jsd:,:), intent(inout)	q,
		integer, intent(in)	ng,
		integer, intent(in)	npx,
		integer, intent(in)	npy,
		integer, intent(in)	isd,
		integer, intent(in)	jsd,
		integer, intent(in)	fill
	)

???

Parameters

[in]	q	???
[in]	ng	???
[in]	npx	???
[in]	npy	???
[in]	isd	???
[in]	jsd	???
[in]	fill	???

Author

GFDL Programmer

Definition at line 251 of file filter_topo.F90.

Referenced by read_grid_file().

subroutine filter_topo::fill_agrid_xy_corners	(	real, dimension(isd:,jsd:,:), intent(inout)	x,
		real, dimension(isd:,jsd:,:), intent(inout)	y,
		integer, intent(in)	ng,
		integer, intent(in)	npx,
		integer, intent(in)	npy,
		integer, intent(in)	isd,
		integer, intent(in)	jsd
	)

???

Parameters

[in]	x	???
[in]	y	???
[in]	ng	???
[in]	npx	???
[in]	npy	???
[in]	isd	???
[in]	jsd	???

Author

GFDL Programmer

Definition at line 352 of file filter_topo.F90.

Referenced by read_grid_file().

subroutine filter_topo::fill_bgrid_scalar_corners	(	real, dimension(isd:,jsd:,:), intent(inout)	q,
		integer, intent(in)	ng,
		integer, intent(in)	npx,
		integer, intent(in)	npy,
		integer, intent(in)	isd,
		integer, intent(in)	jsd,
		integer, intent(in)	fill
	)

???

Parameters

[in]	q	???
[in]	ng	???
[in]	npx	???
[in]	npy	???
[in]	isd	???
[in]	jsd	???
[in]	fill	???

Author

GFDL Programmer

Definition at line 301 of file filter_topo.F90.

Referenced by read_grid_file().

subroutine filter_topo::fill_cubic_grid_halo	(	real, dimension(1-halo:,1-halo:,:), intent(inout)	data,
		real, dimension(1-halo:,1-halo:,:), intent(inout)	data2,
		integer, intent(in)	halo,
		integer, intent(in)	ioff,
		integer, intent(in)	joff,
		integer, intent(in)	sign1,
		integer, intent(in)	sign2
	)

This routine fill the halo points for the cubic grid.

ioff and joff is used to distinguish T, C, E, or N-cell.

Parameters

[in]	data	???
[in]	data2	???
[in]	halo	???
[in]	ioff	???
[in]	joff	???
[in]	sign1	???
[in]	sign2	???

Author

GFDL Programmer

Definition at line 1121 of file filter_topo.F90.

Referenced by del2_cubed_sphere(), del4_cubed_sphere(), read_grid_file(), read_topo_file(), and two_delta_filter().

subroutine filter_topo::fill_dgrid_xy_corners	(	real, dimension(isd:,jsd:,:), intent(inout)	x,
		real, dimension(isd:,jsd:,:), intent(inout)	y,
		integer, intent(in)	ng,
		integer, intent(in)	npx,
		integer, intent(in)	npy,
		integer, intent(in)	isd,
		integer, intent(in)	jsd
	)

???

Parameters

[in]	x	???
[in]	y	???
[in]	ng	???
[in]	npx	???
[in]	npy	???
[in]	isd	???
[in]	jsd	???

Author

GFDL Programmer

Definition at line 384 of file filter_topo.F90.

Referenced by read_grid_file().

program filter_topo

(

)

This program does ???

Returns

0 for success, error code otherwise.

Author

S-J Lin (GFDL) for filtering algorithm(s)

Zhi Liang (GFDL) who packaged it into a standalone application.

Definition at line 10 of file filter_topo.F90.

References compute_filter_constants(), fv3_zs_filter(), read_grid_file(), read_namelist(), read_topo_file(), and write_topo_file().

subroutine filter_topo::fv3_zs_filter	(	integer, intent(in)	is,
		integer, intent(in)	ie,
		integer, intent(in)	js,
		integer, intent(in)	je,
		integer, intent(in)	isd,
		integer, intent(in)	ied,
		integer, intent(in)	jsd,
		integer, intent(in)	jed,
		integer, intent(in)	npx,
		integer, intent(in)	npy,
		integer, intent(in)	npx_global,
		integer, intent(in)	ntiles,
		integer, intent(in)	grid_type,
		real, intent(in)	stretch_fac,
		logical, intent(in)	nested,
		real, dimension(isd:ied,jsd:jed, ntiles), intent(in)	area,
		real, dimension(isd:ied,jsd:jed, ntiles), intent(in)	dxa,
		real, dimension(isd:ied,jsd:jed, ntiles), intent(in)	dya,
		real, dimension(isd:ied, jsd:jed+1, ntiles), intent(in)	dx,
		real, dimension(isd:ied+1,jsd:jed, ntiles), intent(in)	dy,
		real, dimension(isd:ied+1,jsd:jed, ntiles), intent(in)	dxc,
		real, dimension(isd:ied, jsd:jed+1, ntiles), intent(in)	dyc,
		real, dimension(4,isd:ied,jsd:jed,ntiles), intent(in)	sin_sg,
		real, dimension(isd:ied,jsd,jed,ntiles), intent(inout)	phis,
		logical, intent(in)	regional
	)

???

Parameters

[in]	is	???
[in]	ie	???
[in]	js	???
[in]	je	???
[in]	isd	???
[in]	ied	???
[in]	jsd	???
[in]	jed	???
[in]	npx	???
[in]	npy	???
[in]	npx_global	???
[in]	ntiles	???
[in]	grid_type	???
[in]	stretch_fac	???
[in]	nested	???
[in]	area	???
[in]	dxa	???
[in]	dya	???
[in]	dx	???
[in]	dy	???
[in]	dxc	???
[in]	dyc	???
[in]	sin_sg	???
[in]	phis	???
[in]	regional	???

Author

GFDL Programmer

Definition at line 1190 of file filter_topo.F90.

References del4_cubed_sphere(), and two_delta_filter().

Referenced by filter_topo().

real function filter_topo::get_area	(	real, dimension(2), intent(in)	p1,
		real, dimension(2), intent(in)	p4,
		real, dimension(2), intent(in)	p2,
		real, dimension(2), intent(in)	p3,
		real, intent(in), optional	radius
	)

???

Parameters

[in]	p1	???
[in]	p4	???
[in]	p2	???
[in]	p3	???
[in]	radius	???

Returns

area

Author

GFDL Programmer

Definition at line 198 of file filter_topo.F90.

References latlon2xyz(), and spherical_angle().

Referenced by read_grid_file().

real function filter_topo::great_circle_dist	(	real, dimension(2), intent(in)	q1,
		real, dimension(2), intent(in)	q2,
		real, intent(in), optional	radius
	)

???

Parameters

[in]	q1
[in]	q2
[in]	radius

Returns

???

Author

GFDL Programmer

Definition at line 96 of file filter_topo.F90.

Referenced by read_grid_file().

subroutine filter_topo::handle_err	(	integer, intent(in)	status,
		character(len=*), intent(in)	string
	)

???

Parameters

[in]	status	???
[in]	string	???

Author

GFDL Programmer

Definition at line 1941 of file filter_topo.F90.

Referenced by read_grid_file(), read_namelist(), read_topo_file(), and write_topo_file().

subroutine filter_topo::latlon2xyz	(	real, dimension(2), intent(in)	p,
		real, dimension(3), intent(out)	e
	)

???

Parameters

[in]	p	???
[in]	e	???

Author

GFDL Programmer

Definition at line 463 of file filter_topo.F90.

Referenced by cell_center2(), get_area(), mid_pt_sphere(), and read_grid_file().

subroutine filter_topo::mid_pt3_cart	(	real, dimension(3), intent(in)	p1,
		real, dimension(3), intent(in)	p2,
		real, dimension(3), intent(out)	e
	)

???

Parameters

[in]	p1	???
[in]	p2	???
[in]	e	???

Author

GFDL Programmer

Definition at line 430 of file filter_topo.F90.

Referenced by mid_pt_sphere(), and read_grid_file().

subroutine filter_topo::mid_pt_sphere	(	real, dimension(2), intent(in)	p1,
		real, dimension(2), intent(in)	p2,
		real, dimension(2), intent(out)	pm
	)

???

Parameters

[in]	p1	???
[in]	p2	???
[in]	pm	???

Author

GFDL Programmer

Definition at line 411 of file filter_topo.F90.

References cart_to_latlon(), latlon2xyz(), and mid_pt3_cart().

Referenced by read_grid_file().

subroutine filter_topo::read_grid_file

(

logical, intent(in)

regional

)

???

Parameters

[in]

regional

???

Author

GFDL Programmer

Definition at line 629 of file filter_topo.F90.

References cell_center2(), cos_angle(), fill_agrid_scalar_corners(), fill_agrid_xy_corners(), fill_bgrid_scalar_corners(), fill_cubic_grid_halo(), fill_dgrid_xy_corners(), get_area(), great_circle_dist(), handle_err(), latlon2xyz(), mid_pt3_cart(), and mid_pt_sphere().

Referenced by filter_topo().

subroutine filter_topo::read_namelist

(

)

Reads the namelist file, write namelist to log file.

Author

GFDL Programmer

Definition at line 1959 of file filter_topo.F90.

References handle_err().

Referenced by filter_topo().

subroutine filter_topo::read_topo_file

(

logical, intent(in)

regional

)

???

Parameters

[in]

regional

???

Author

GFDL Programmer

Definition at line 979 of file filter_topo.F90.

References fill_cubic_grid_halo(), and handle_err().

Referenced by filter_topo().

real function filter_topo::spherical_angle	(	real, dimension(3)	p1,
		real, dimension(3)	p2,
		real, dimension(3)	p3
	)

???

           p3
         /
        /
       p1 ---> angle

           p2
 

Parameters

[in]	p1	???
[in]	p2	???
[in]	p3	???

Returns

???

Author

GFDL Programmer

Definition at line 137 of file filter_topo.F90.

Referenced by get_area().

subroutine filter_topo::two_delta_filter	(	integer, intent(in)	is,
		integer, intent(in)	ie,
		integer, intent(in)	js,
		integer, intent(in)	je,
		integer, intent(in)	isd,
		integer, intent(in)	ied,
		integer, intent(in)	jsd,
		integer, intent(in)	jed,
		integer, intent(in)	npx,
		integer, intent(in)	npy,
		integer, intent(in)	ntiles,
		real, dimension(isd:ied, jsd:jed,ntiles), intent(inout)	q,
		real, dimension(isd:ied, jsd:jed, ntiles), intent(in)	area,
		real, dimension(isd:ied, jsd:jed+1, ntiles), intent(in)	dx,
		real, dimension(isd:ied+1,jsd:jed, ntiles), intent(in)	dy,
		real, dimension(isd:ied, jsd:jed, ntiles), intent(in)	dxa,
		real, dimension(isd:ied, jsd:jed, ntiles), intent(in)	dya,
		real, dimension(isd:ied+1,jsd:jed, ntiles), intent(in)	dxc,
		real, dimension(isd:ied, jsd:jed+1, ntiles), intent(in)	dyc,
		real, dimension(4,isd:ied,jsd:jed, ntiles), intent(in)	sin_sg,
		real, intent(in)	cd,
		logical, intent(in)	zero_ocean,
		logical, intent(in)	check_slope,
		integer, intent(in)	filter_type,
		integer, intent(in)	grid_type,
		real, dimension(isd:ied, jsd:jed, ntiles), intent(in)	mask,
		logical, intent(in)	nested,
		integer, intent(in)	ntmax,
		logical, intent(in)	regional
	)

???

Parameters

[in]	is	???
[in]	ie	???
[in]	js	???
[in]	je	???
[in]	isd	???
[in]	ied	???
[in]	jsd	???
[in]	jed	???
[in]	npx	???
[in]	npy	???
[in]	ntiles	???
[in]	q	???
[in]	area	???
[in]	dx	???
[in]	dy	???
[in]	dxa	???
[in]	dya	???
[in]	dxc	???
[in]	dyc	???
[in]	sin_sg	???
[in]	cd	???
[in]	zero_ocean	???
[in]	check_slope	???
[in]	filter_type	???
[in]	grid_type	???
[in]	mask	???
[in]	nested	???
[in]	ntmax	???
[in]	regional	???

Author

GFDL Programmer

Definition at line 1273 of file filter_topo.F90.

References fill_cubic_grid_halo().

Referenced by fv3_zs_filter().

subroutine filter_topo::write_topo_file	(	integer, intent(in)	is,
		integer, intent(in)	ie,
		integer, intent(in)	js,
		integer, intent(in)	je,
		integer, intent(in)	ntiles,
		real, dimension(is:ie,js:je,ntiles), intent(in)	q,
		logical, intent(in)	regional
	)

Replace the topo_field.

Parameters

[in]	is	???
[in]	ie	???
[in]	js	???
[in]	je	???
[in]	ntiles	???
[in]	q	???
[in]	regional	???

Author

GFDL Programmer

Definition at line 1073 of file filter_topo.F90.

References handle_err().

Referenced by filter_topo().