[GRASS-user] temperature map from Landsat imagery

GRASS GRASS user
1

Dear all,

How can I get a temperature map from Landsat Image within GRASS?
Which information I need to do thay?
Which other climate variable can I derive from Landsat images?

Best
--

Miltinho - mcr@rc.unesp.br
Laboratório de Ecologia Espacial e Conservação - LEEC
Depto de Ecologia - UNESP - Rio Claro
Av. 24A, 1515- Bela Vista
13506-900 Rio Claro, SP, Brasil

http://www.rc.unesp.br/ib/ecologia/
Fone: +55 19 3526-9647
Cel: 19 9853-3220 / 19 9853-5430

2

On Sat, Sep 24, 2011 at 4:01 AM, Milton Cezar Ribeiro
<miltinho.astronauta@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