use a LUT in 4SM to map the diffuse attenuation coefficient Kd
work done in 2021 at 15 m GSD
Using the Panchromatic band for water column correction
to derive water depth and spectral bottom signature:

Landsat 8 OLIP bandset used for this work

Purple=1Blue=2Green=3PAN=4Red=5NIR=6 and SWIR1=7

   peer-reviewed and published in 2017    

Please refer to ALUT vs 4SM
Argans Ltd.  ESA/Contract No 4000124860/I-NB. 2019. Sentinel Coastal Charting Worldwide

Hedley J.  IOCCG Summer Class 2018. Shallow water Remote Sensing
John D. Hedley, Chris Roelfsema , Vittorio Brando , Claudia Giardino , Tiit Kutser , Stuart Phinn , Peter J. Mumby , Omar Barrilero , Jean Laporte , Benjamin Koetz. 2018. Coral reef applications of Sentinel-2: Coverage, characteristics, bathymetry and benthic mapping with comparison to Landsat 8
Hamylton, S.M., Hedley, J.D., Beaman, R.J., 2015. Derivation of high-resolution bathymetry from multispectral satellite imagery: a comparison of empirical and optimisation methods through geographical error analysis. Remote Sens. 7, 16257–16273.


Lizard Island is shown: green ROI, 60 km north of Cooktown
17 february   2016     LUT                                                                                     LUT,   rainy season    feb 2016
06 november 2020     LUT: optical calibration confirms LUT results                            LUT, spring season   nov 2020


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