Optical calibration, bathymetry, water column correction and bottom typing of shallow marine areas, using passive remote sensing imageries
CASI image of Gezirat Siyul Reef, Red Sea
Work updated in 2006

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Image courtesy of HDI . This is a 12 bands image, 2800 x 5900, pixel resolution 1 meter.


Bandset : -WL410/430/451/470/490/509/523/538/550/565/608/850 in nanometers

Unfortunately, this dataset lacks bands in the red and green region of the solar spectrum.

Glint parameters appear to change in a subtle way from start to end of data collection.
And the mosaic includes oblique viewing which fades out at some locations.

A very good dataset anyway: lots of photons!

see CASI presentation for U. of Hawai in year 2000 (6 MB)

 
 
 


Profiling

 
 
Profile Blue

Deglinting does quite a nice job,
in spite of a high level of noise
Profile Red
   
   





 

 

 
     

 


[up] Bottom reflectance profile

Profile
of water column corrected BOA radiances

Spectral bottom reflectance LSB
profile is shown
 



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