On Fri, Dec 6, 2013 at 4:14 PM, Charlotte Whitham <[email protected]> wrote: > Dear mailing list, > > Apologies I am a new user with GRASS and have searched everywhere online for > help with this but to no avail...
You are most welcome here! > I'm trying to run the i.atcorr module on GRASS (version 6.4.3 on a Macbook > Pro, Mavericks OSX) with Landsat8 imagery. > > Parameters didn't seem to be loading from the provided metadata file > (MTL_txt) (basically what happened is that when the code was executed it > wasn't picking up any of the parameters from the text file), so I went back > to the GRASS manuals and tried to input values by hand, here is what I used: > > 8 = geometrical conditions=Landsat ETM+ The problem is that Landsat8 isn't yet supported in i.atcorr, it needs to be added following http://grasswiki.osgeo.org/wiki/Atmospheric_correction#How_to_add_new_sensors_to_i.atcorr Background: the band numbering has changed with respect to Lsat7, hence using the ETM+ definitions will just fail, also due to other differences. See for example http://landsat.usgs.gov/band_designations_landsat_satellites.php Essentially we need a volunteer to add Lsat8 as a new sensor. Markus _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
