I am working on atmospheric correction using 6s in
Grass 6.4.4 version(i.atcorr module).
I want to use raster data set for atmospheric parameters. Presently I am creating an
icnd (input condition)file having the atmospheric parameters in a format mentioned in grass help (please check https://grass.osgeo.org/grass64/manuals/i.atcorr.html).
But for accurate surface reflectance product one should use raster data (example like MODIS OMI-Aura_L3-OMTO3e_2014m0228_v003-2014m0304t144005.he5.nc )containing atmospheric parameters such as optical depth, water-vapor, ozone for any image.
Is it possible in Grass or do we have to use point data only for aerosols?