Bathymetry and water column correction
LANDSAT 8 OLIP 
at Freeport, Bahamas
Image courtesy of the U.S. Geological Survey
7671*7841 30 m pixel size, UTM zone 18


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

home
 
 

scene LC80140422014363LGN00, December 29th 2014
this scene is continued southwards at fpoli2-20141229  (same date)
Work done october 2016



Data and Deglinting

TOA TCC: raw image
logaritmmic enhancement
BOA TCC deglinted image
logaritmmic enhancement
note a few whitings



Optical calibration
16U data are scaled to allow for comfortable screen display
OPTIMIZED CALIBRATION

Calibration diagram for the whole scene
for bands Blue, Green, Red and NIR		 OPTIMIZED CALIBRATION

Calibration diagram for the whole scene
for bands Coastal, PAN, Red and NIR




Ready for modeling
No Smoothing

BOA TCC: water column corrected
whitings look pinkish
Retrieved depth
see legend
 



Bottom typing

SAM classified image
see legend for SAM
Average bottom brightness

this scene is continued southwards
at fpoli2-20141229  (same date)

 



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