Re: i.atcorr with Sentinel2

Zofie,

You could mask the area or set the region to include only the area you're
interested in

Tom

On Fri, Dec 15, 2017 at 9:53 AM, Žofie Cimburová <[email protected]>
wrote:

> Dear all,
> I am trying to use i.atcorr (GRASS 7.4) to apply atmospheric corrections
> for Sentinel 2 data. The documentation provides a great help, but there are
> two points I am not sure about -
>
> - I don't need the atmospheric correction to be applied to the whole
> scene, so I only imported a small clip of the scene to GRASS. What
> longitude and latitude shall I then specify in the 6S parameters? Or is it
> necessary to apply the corrections to the entire scene? (In that case, do
> the latitude and longitude refer to the centre or to the corner of the
> scene?)
>
> - How can I estimate the value of visibility (aerosol model
> concentration)?
>
>
> Thanks for any help!
>
> Best regards,
> Zofie
>
>
>
>
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>



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