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Re: get lat/lon from modis SIN grid [message #77922 is a reply to message #77921]

Tue, 18 October 2011 06:25

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Jenny writes:

> Hi, has anybody implemented the formulas for Coordinate conversion for
> the MODIS sinusoidal projection included in the MODIS Burned Area
> product User Guide appendix2 (on p24)?
> Link to the Guide:
> http://www.fao.org/fileadmin/templates/gfims/docs/MODIS_Burn ed_Area_User_Guide_2.0.pdf
>
> Based on those formulas, one could get lat/lon information from
> column, row, horizontal, and vertical coordinates of the tile for each
> pixel in a tile. It seems to be too easy to be true? I haven't seen
> any post on this. Has any body tried it?

I think it would be much easier (and less prone to error)
to simply use the Map_Proj_*** routines, which are designed
to do this very thing.

Cheers,

David

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

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[Message index]

		Re: get lat/lon from modis SIN grid By: Jeremy Bailin on Tue, 18 October 2011 12:50
		Re: get lat/lon from modis SIN grid By: Brian Wolven on Tue, 18 October 2011 10:39
		Re: get lat/lon from modis SIN grid By: Mark Piper on Tue, 18 October 2011 07:57
		Re: get lat/lon from modis SIN grid By: David Fanning on Tue, 18 October 2011 06:25
		Re: get lat/lon from modis SIN grid By: envi35@yahoo.ca on Thu, 20 October 2011 19:35

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