[GRASS-user] temperature map from Landsat imagery

Markus Neteler neteler at osgeo.org
Sat Sep 24 03:35:37 EDT 2011


On Sat, Sep 24, 2011 at 4:01 AM, Milton Cezar Ribeiro
<miltinho.astronauta at gmail.com> wrote:
> Dear all,
>
> How can I get a temperature map from Landsat Image within GRASS?

Please check slides 67 + 68 in:
http://www.slideshare.net/markusN/the-grass-gis-software-with-qgis-gis-seminar-presentation

We describe this in greater detail in our GRASS book.

> Which information I need to do thay?

The needed conversion factors which you usually get from the metadata.
Alternative: use i.landsat.toar, see:

http://grass.osgeo.org/wiki/LANDSAT#Calculate_top-of-atmosphere_reflectance_and_band-6_temperature

> Which other climate variable can I derive from Landsat images?

Climate variables... not so many. Moreover vegetation indices and such.

Markus


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