w3fb01.f File Reference

I,J TO LATITUDE, LONGITUDE. More...

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Functions/Subroutines
subroutine	w3fb01 (xi, xj, xmeshl, alat, along)
	Converts the coordinates of a location from the grid(i,j) coordinate system overlaid on the polar stereographic map pro- jection true at 60 n to the natural coordinate system of latitude /longitude on the Earth.

Detailed Description

I,J TO LATITUDE, LONGITUDE.

Author

A. Heermann

Date

1969-08-01

Definition in file w3fb01.f.

Function/Subroutine Documentation

w3fb01()

subroutine w3fb01	(		xi,
			xj,
			xmeshl,
			alat,
			along
	)

Converts the coordinates of a location from the grid(i,j) coordinate system overlaid on the polar stereographic map pro- jection true at 60 n to the natural coordinate system of latitude /longitude on the Earth.

A preferable more flexible subroutine to use is w3fb05(). w3fb01() is the reverse of w3fb00().

PROGRAM HISTORY LOG:

• A. Heermann 1969-08-01 A. HEERMANN
• Ralph Jones 1990-08-31 Change to cray cft77 fortran.

Parameters

[in]	XI	I of the point relative to north pole.
[in]	XJ	J of the point relative to north pole.
[in]	XMESHL	Mesh length of grid in kilometers at 60n.
[out]	ALAT	Latitude in deg. (-20.0(s. hemis) < alat < 90.0).
[out]	ALONG	West longitude in degrees.

Note

The grid used in this subroutine has its origin (i=0,j=0) at the north pole, so if the user's grid has its origin at a point other than the north pole, a translation is required to get i and j for input into w3fb01(). The subroutine grid is oriented so that longitude 80w is parallel to gridlines of i=constant. The Earth's radius is taken to be 6371.2 km. All parameters in the call statement must be real.

Author

A. Heermann

Date

1969-08-01

Definition at line 30 of file w3fb01.f.