[GRASS-dev] Atmospheric correction for hyperspectral sensors

[Markus Neteler]

Hello Abhijit B.,

On Tue, Mar 22, 2011 at 8:35 PM, Abhijit Bhattacharjee <abhijit at isi.edu> wrote:
> Hello Grass Developers,
>
> I am working on a project where we need to provide atmospherically corrected
> versions of Hyperion data, which is a hyperspectral sensor. Previously,
> GRASS’s i.atcorr function has been very useful when I was analyzing MODIS
> data. However, there are no presets in the spectrum tables for hyperspectral
> sensors.

Yes, more sensors need to be implemented.

> I’m looking to modify the source of i.atcorr to support correction of
> Hyperion images, which has 242 bands within the 250—4000 nm spectrum
> supported by i.atcorr’s 6S implementation. Can anyone point me in the right
> place where I can make changes or add these bands to i.atcorr’s supported
> profiles? If I can get this working correctly, I would be willing to submit
> the code to the project as well, assuming there is interest.

I have added a new README which hopefully explains how to add
new sensors:

http://trac.osgeo.org/grass/browser/grass/trunk/imagery/i.atcorr/README

Please be sure to work with latest GRASS source code.

Markus