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

[Gabriel Cotlier]

Thanks a lot very good information and guidance.
Thanks
Gabriel

On Wed, Aug 21, 2019 at 3:31 AM Nikos Alexandris <nik at nikosalexandris.net>
wrote:

> * Gabriel Cotlier <gabiklm01 at gmail.com> [2018-08-21 12:00:24 -0300]:
>
> >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?
>
> The implemented algorithm (Du, 2015) bases upon the generalized
> split-window algorithm proposed by Wan (2014). The 'stray light' issue
> is not dealt upfront with this approach.  The 'stray light' issue is
> dealt with an algorithmic correction introduced in the Collection 1
> products.  And, of course, there might be more questions that relate to
> the quality and performance of the algorithm by Du.
>
> Regarding "water bodies", I don't know.
>
>
> >whether band 10 is better than band 11 in terms of correction processing
> >for Level -1  data products?
>
> Band 10 is the one selected for the single-channel based LST products
> that span across all Landsat sensors. See: "Landsat Provisional Surface
> Temperature (ST) Digital Object Identification (DOI):
> doi.org/10.5066/F7J38RTH".  Band 11 is the one with large calibration
> uncertainties.
>
> A good reference is this publication:
>
> Malakar, N. K., Hulley, G. C., Hook, S. J., Laraby, K., Cook, M., &
> Schott, J. R. (2018). An Operational Land Surface Temperature Product
> for Landsat Thermal Data: Methodology and Validation. IEEE Transactions
> on Geoscience and Remote Sensing, (99), 1-19.
> http://dx.doi.org/10.1109/TGRS.2018.2824828.
>
> Nikos
>
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