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Resampling large satellite (AVHRR) images to a grid [message #6520]

Tue, 09 July 1996 00:00

Liam Gumley
Messages: 473
Registered: November 1994

Senior Member

Hi folks,

I have the following data in 1-D arrays for an AVHRR scene:

latitude
longitude
brightness temperature

I can display the data as an image in satellite coordinates with
no problems (just REFORM the brightness temperature array).

However, I don't know of an efficient way to resample the image to
a lat/lon grid (say equidistant cylindrical). TRIANGULATE and REGRID
are far too slow (and are probably overkill) when used on every lat/lon
point. I have tried a few things with POLYWARP and POLY_2D but have
not come up with a satisfactory method yet.

Has anyone done something like this? I am looking for a *fast* algorithm
that will handle large AVHRR scenes (say 2048x208 pixels).

Cheers.
Liam.

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[Message index]

		Resampling large satellite (AVHRR) images to a grid By: Liam Gumley on Tue, 09 July 1996 00:00
		Re: Resampling large satellite (AVHRR) images to a grid By: Hermann Mannstein on Thu, 11 July 1996 00:00

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