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Re: Spherical gridding [message #35503 is a reply to message #21747]

Wed, 18 June 2003 12:09

wmconnolley
Messages: 106
Registered: November 2000

Senior Member

Elias J. Hunter <hunter@imcs.rutgers.edu> wrote:
> I have a matrix of surface pressure north of 60N, that is currently on a
> gaussian lat-lon grid. My goal is to interpolate this grid to a one
> degree by one degree lat-lon grid. Now when I attempt this using
> sph_sct, the field south of 75 degrees lat looks good, the grid north of
> 75 degrees lat is a mess.

You (probably) don't want to use sph_scat. You're (probably) best off
regarding your input (and output) grids as rectangular orthogonal
(ie treat the process in lat-lon space).

If you must regrid using "physical" coordinates, I find that mapping the
data onto polar stereo coords (using convert_coord) then remapping in
device coords works well.

-W.

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William M Connolley | wmc@bas.ac.uk | http://www.antarctica.ac.uk/met/wmc/
Climate Modeller, British Antarctic Survey | Disclaimer: I speak for myself
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[Message index]

		spherical gridding By: Sylvain Carette on Sun, 17 September 2000 00:00
		Re: Spherical gridding By: JD Smith on Thu, 19 June 2003 15:31
		Re: Spherical gridding By: Liam E. Gumley on Thu, 19 June 2003 12:17
		Re: Spherical gridding By: Liam E. Gumley on Thu, 19 June 2003 12:14
		Re: Spherical gridding By: Haje Korth on Thu, 19 June 2003 11:45
		Re: Spherical gridding By: Haje Korth on Thu, 19 June 2003 11:42
		Re: Spherical gridding By: Ben Tupper on Thu, 19 June 2003 10:11
		Re: Spherical gridding By: Paul Van Delst[1] on Thu, 19 June 2003 09:32
		Re: Spherical gridding By: Ben Tupper on Thu, 19 June 2003 09:14
		Re: Spherical gridding By: hunter on Thu, 19 June 2003 08:35
		Re: Spherical gridding By: hunter on Fri, 20 June 2003 11:06
		Re: Spherical gridding By: Liam E. Gumley on Thu, 19 June 2003 07:41
		Re: Spherical gridding By: Haje Korth on Thu, 19 June 2003 04:54
		Re: Spherical gridding By: wmconnolley on Wed, 18 June 2003 12:09

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