Hi,
thanks, it worked fine after the Landsat handbook.
Niels
Jose Gomez-Dans schrieb:
Hi
On 29 January 2010 15:42, Niels Thevs <[email protected]
<mailto:[email protected]>> wrote:
is there an algorithm, which converts Landsat band 61 temperature
data into Kelvin ? I tried to approach this problem by establishing
a relationship between MODIS data and Landsat, but i did not work out.
I'm not sure what you mean, but have you converted your DN into
randiance and then into temperature using the steps outlined in
<http://landsathandbook.gsfc.nasa.gov/handbook/handbook_htmls/chapter11/chapter11.html#section11.3.3>?
This gives you TOA radiance, which you then need to convert into ground
radiance. From there, and using Planck's function, you convert it to
surface temperature. The tricky bit is to conver the TOA into BOA
radiances, which requires you to do a bit of atmospheric
characterisation/correction.
Hope that helps,
Jose
--
RSU ■ Dept. of Geography ■ University College ■ Gower St, London WC1E 6BT UK
EMM ■ Dept. of Geography ■ King's College ■ Strand, London WC2R 2LS UK
--
-----------------------------------------------------
Dr. Niels Thevs
Institute of Botany and Landscape Ecology
Greifswald University
Grimmer Strasse 88
17487 Greifswald
Germany
Tel.: +49-3834-86-4131
Fax: +49-3834-86-4114
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