[GRASS-user] question on Stray light Landsat 8 data

[Gabriel Cotlier]

Dear Nikos,

Thanks a lot for your answer and the orientation.
The information and the link are very useful.
Kind regards,
Gabriel


On Wed, Aug 22, 2018 at 5:19 AM Nikos Alexandris <nik at nikosalexandris.net>
wrote:

> * Gabriel Cotlier <gabiklm01 at gmail.com> [2018-08-21 12:00:24 -0300]:
>
> >Dear Nikos and GRASS users,
> >
> >I would like to ask if nonetheless the effect due to "stray light" the
> >*i.landsat8.swlst* code for split window is still applicable to Landsat 8
> >data and whether these error is specially visible on water bodies? and
> >whether band 10 is better than band 11 in terms of correction processing
> >for Level -1  data products?
> >
> >Thanks a lot.
> >
> >Kind regards,
> >Gabriel
>
> Dear Gabriel,
>
> for details and references, refer to
>
>
> https://landsat.gsfc.nasa.gov/landsat-8-thermal-data-ghost-free-after-stray-light-exorcism/
>
> Make sure you use the newest Level-1 Collection 1 Landsat 8 products.
>
> I use `i.landsat8.swlst` and plan to improve it further.
>
> However, whether to prefer a Split-Window based approach, or another
> Single-Channel one, depends on what you want to do. Think of spatial
> extent and coverage of various land (cover) types, temporal extent
> and more.
>
> Thermal remote sensing is hard(er) also because it's hard to get
> ground-truth data sets so as to validate LST estimations.
>
> Nikos
>
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