w3ft201.f File Reference

Convert (361,181) grid to (65,65) n. More...

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Functions/Subroutines
subroutine	w3ft201 (alola, apola, interp)
	Convert a global 1.0 degree lat.,lon.

Detailed Description

Convert (361,181) grid to (65,65) n.

hemi. grid

Author

Ralph Jones

Date

1993-03-29

Definition in file w3ft201.f.

Function/Subroutine Documentation

w3ft201()

subroutine w3ft201	(	real, dimension(361,181)	alola,
		real, dimension(npts)	apola,
			interp
	)

Convert a global 1.0 degree lat.,lon.

361 by 181 grid to a polar stereographic 65 by 65 grid. The polar stereographic map projection is true at 60 deg. n. , the mesh length is 381 km. and the oriention is 105 deg. w. This is the same as w3ft43v() except the oriention is 105 deg. w.

Program History Log:

Date	Programmer	Comment
1993-03-29	Ralph Jones	Add save statement.

Parameters

[in]	ALOLA	361*181 grid 1.0 deg. lat,lon grid 65341 point grid. 360 * 181 one degree grib grid 3 was flipped, greenwish added to right side to make 361 * 181.
[in]	INTERP	1 linear interpolation , ne.1 biquadratic
[out]	APOLA	65*65 grid of northern hemisphere. 4225 point grid is awips grid type 201

Note

• 1. W1 and w2 are used to store sets of constants which are reusable for repeated calls to the subroutine.
• 2. Wind components are not rotated to the 65*65 grid orientation after interpolation. You may use w3fc08() to do this.
• 3. All points below equator are on this grid.

Author

Ralph Jones

Date

1993-03-29

Definition at line 31 of file w3ft201.f.