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Re: AVHRR Image Mapping Problem [message #52013 is a reply to message #51852]

Fri, 22 December 2006 07:01

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Peter Albert writes:

> Just a wild guess: Could it be that actually not the centres of the
> corner pixels are reported but their (outer) edges, assuming e.g. the
> AVHRR nadir resolution of 1.2 km?

The values are not the pixel edges, this is one of the
first things I checked. But, I am wondering if it is
actually possible to *calculate* the pixel positions
from the GEOTIFF information embedded in the file.
Does anyone know how to do that?

Perhaps the information is embedded in the file and
I just don't know how to access it. (Maybe this is
what you mean by "AVHRR nadir resolution of 1.2 km".)

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		AVHRR Image Mapping Problem By: David Fanning on Fri, 15 December 2006 07:42
		Re: AVHRR Image Mapping Problem By: David Fanning on Wed, 20 December 2006 05:52
		Re: AVHRR Image Mapping Problem By: peter.albert@gmx.de on Wed, 20 December 2006 23:55
		Re: AVHRR Image Mapping Problem By: wita on Tue, 19 December 2006 23:49
		Re: AVHRR Image Mapping Problem By: David Fanning on Sun, 17 December 2006 20:47
		Re: AVHRR Image Mapping Problem By: Richard French on Sun, 17 December 2006 20:11
		Re: AVHRR Image Mapping Problem By: James Kuyper on Sun, 17 December 2006 20:05
		Re: AVHRR Image Mapping Problem By: George N. White III on Thu, 28 December 2006 07:03
		Re: AVHRR Image Mapping Problem By: Richard French on Sun, 17 December 2006 18:46
		Re: AVHRR Image Mapping Problem By: David Fanning on Sun, 17 December 2006 12:36
		Re: AVHRR Image Mapping Problem By: Chris[2] on Sun, 17 December 2006 12:11
		Re: AVHRR Image Mapping Problem By: David Fanning on Sat, 16 December 2006 07:13
		Re: AVHRR Image Mapping Problem By: Chris[2] on Fri, 15 December 2006 21:43
		Re: AVHRR Image Mapping Problem By: David Fanning on Fri, 15 December 2006 17:45
		Re: AVHRR Image Mapping Problem By: David Fanning on Fri, 15 December 2006 13:46
		Re: AVHRR Image Mapping Problem By: David Fanning on Fri, 15 December 2006 13:42
		Re: AVHRR Image Mapping Problem By: James Kuyper on Fri, 15 December 2006 13:19
		Re: AVHRR Image Mapping Problem By: David Fanning on Fri, 15 December 2006 12:33
		Re: AVHRR Image Mapping Problem By: Matt[1] on Fri, 15 December 2006 12:07
		Re: AVHRR Image Mapping Problem By: David Fanning on Fri, 15 December 2006 11:33
		Re: AVHRR Image Mapping Problem By: Bob[3] on Fri, 15 December 2006 11:21
		Re: AVHRR Image Mapping Problem By: Matt[1] on Fri, 15 December 2006 11:21
		Re: AVHRR Image Mapping Problem By: David Fanning on Fri, 15 December 2006 10:50
		Re: AVHRR Image Mapping Problem By: David Fanning on Mon, 25 December 2006 21:55
		Re: AVHRR Image Mapping Problem By: David Fanning on Mon, 25 December 2006 12:27
		Re: AVHRR Image Mapping Problem By: David Fanning on Sun, 24 December 2006 11:01
		Re: AVHRR Image Mapping Problem By: Richard French on Sun, 24 December 2006 10:50
		Re: AVHRR Image Mapping Problem By: David Fanning on Sun, 24 December 2006 10:03
		Re: AVHRR Image Mapping Problem By: Chris[2] on Sat, 23 December 2006 17:31
		Re: AVHRR Image Mapping Problem By: James Kuyper on Fri, 22 December 2006 07:47
		Re: AVHRR Image Mapping Problem By: David Fanning on Fri, 22 December 2006 07:01

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