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I am trying to correct atmospherically an image from Landsat 8 with 6s model from grass 7 and 6.4. Because there are no parameters for Landsat 8 yet, i am trying to give parameters from Landsat 7 images. when i use i.atcorr i get this message :

wavelength less than 0.25 micron: let's take s(l)=s(0.25)

and the command ends. How can i correct my Landsat 8 images? Is there someone who knows when Landsat 8 images will officially be in 6s model?

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This may help gisagmaps.com/landsat-8-data-tutorial , a stop gap perhaps. It has the attraction of being able to be completed in QGIS, but is very sensitive to the selection of the haze parameters. –  Willy Sep 17 '13 at 10:45

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