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

return to 4SM Study Cases
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)



Profile Blue

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





[up] Bottom reflectance profile

of water column corrected BOA radiances

Spectral bottom reflectance LSB
profile is shown

Créer un site
Créer un site