[GRASS-user] Calculation of exitance angle

andrew haywood ahaywood3 at gmail.com
Thu Mar 4 01:00:07 EST 2010

Dear List,

We are currently working on normalising some landsat scenes using a
topographic and illumination correction.
We have calculated the solar incidence angle using a dem and r.sun. We are
now looking to calculate the existance angle for Landsat. Has anybody have
advice on how to calculate this using r.mapcalc or other functions.

Thank you in advance.

Andrew Haywood
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