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Re: Calculating area of latitude-longitude quadrangle? [message #77322 is a reply to message #77311]

Tue, 23 August 2011 13:37

R.G.Stockwell
Messages: 163
Registered: October 2004

Senior Member

>
>
> "Ashley Berg" wrote in message
> news:7e751dd7-f940-4246-bb73-a68fad00140d@bl1g2000vbb.google groups.com...
>
> Is there any way to calculate the area of a latitude-longitude
> quadrangle in IDL, or some formula I could use?
> MATLAB can (using areaquad from the Mapping Toolbox, which can return
> surface area in km^2 of a lat/lon box covering a part of Earth) but I
> do not have access to MATLAB.

actual surface area would be impossible, but just integrate the surface of a
sphere and that could get you close enough.

cheers,
bob

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[Message index]

		Re: Calculating area of latitude-longitude quadrangle? By: Maxwell Peck on Wed, 24 August 2011 00:54
		Re: Calculating area of latitude-longitude quadrangle? By: R.G.Stockwell on Tue, 23 August 2011 13:37
		Re: Calculating area of latitude-longitude quadrangle? By: Ashley Berg on Tue, 23 August 2011 13:06
		Re: Calculating area of latitude-longitude quadrangle? By: David Fanning on Tue, 23 August 2011 12:13

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