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Re: Interpolation on a sphere [message #37676 is a reply to message #2948]

Mon, 19 January 2004 13:13

Kenneth P. Bowman
Messages: 585
Registered: May 2000

Senior Member

In article <bugttk$qo8$1@houston.jhuapl.edu>,
"Haje Korth" <haje.korth@jhuapl.edu> wrote:

Are you sure it's not either a case of too few points or of real
features of the data?

You could try a least-squares fit to spherical harmonics (truncating
appropriately) and then reconstruct a gridded field from the spherical
harmonics.

Ken Bowman

> Now, my problem is that no matter what interpolation method I use, I obtain
> ARTIFACTS (e.g., saw teeth, see attached picture) in the gridded output.
> Does anyone know how get a decent interpolated data set? Am I using the
> right key words? Or should I attempt a completely different approach? Any
> help is appreciated.
>
> Thanks,
> Haje

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[Message index]

		Interpolation on a sphere By: dan on Thu, 06 October 1994 13:41
		Re: Interpolation on a sphere By: Haje Korth on Tue, 20 January 2004 05:08
		Re: Interpolation on a sphere By: Kenneth P. Bowman on Mon, 19 January 2004 13:13

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