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Re: Spherical gridding [message #35490 is a reply to message #21747]

Thu, 19 June 2003 08:35

hunter
Messages: 9
Registered: June 2003

Junior Member

I tried griddata using keywords for spherical gridding, but the results were
poor. However, assuming the lat lon coordinates were cartesian. gave a much
better representation of the data (visually).

Eli

"Haje Korth" <haje.korth@jhuapl.edu> wrote in message
news:bcs8ba$24n$1@houston.jhuapl.edu...
> I am using "griddata", which has been included with IDL since version 5.5.
> It is much more powerful than sph_sct.
>
> Haje
>
>
> --
>
> "Elias J. Hunter" <hunter@imcs.rutgers.edu> wrote in message
> news:3EF0A470.1080008@imcs.rutgers.edu...
>> Hello,
>>
>> 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.
>>
>> My guess is that the longitudinal resolution north of 75 degrees on the
>> new grid is so fine relative to the old grid, its creating a problem. I
>> suppose it could also be becasue I'm getting closer to the singularity
>> at the pole.
>>
>> Has anybody addressed a similar difficulty using sph_scat?
>>
>> Thanks,
>> Eli
>>
>
>

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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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