ModelingWest Florida Shelf

ModelingWest Florida Shelf

ModelingWest Florida Shelf

ModelingLEO-15

ModelingLEO-15

West Florida Shelf

April 16th, 17th, 18th, 19th, 21th, 23th, 24th, and 26thLEO-15

July 21th, 23th, 27th, and 31th,August 1th and 2nd Hyperspectral Remote SensingWest Florida Shelf and LEO-15

Zero Order LightDirect reflection off diffraction grating, >> greater than other orders combined.Out-of-band response.On order of 10-4 of signal wavelength distributed across all others in a non-gaussian distribution.Calibration light sourceRed rich lamps do not approximate blue rich scene. Out-of-band response causes errors in gain calculations.Extrapolation of calibration light series to data series.Only a small fraction of wavelengths had calibration series that actually included water data collections. Calibration Issues

Zero Order LightPre-Mask

Out-of-Band ResponsePost-Mask

Calibration Light Source

Beach and Water SpectraLEO-15

Initial Calibration SeriesWFS

Initial Calibration SeriesLEO-15

Future Calibration Series

Out-of-Band Response/Lamp Source Optimization Scheme

Post-Optimization Calibration

Geo-CorrectionCamera Timing Errors

Geo-CorrectionCMIGIT Timing Errors

Geo-CorrectionEffects of CMIGIT Errors

Geo-CorrectedLEO-15

Spatial ShiftLEO-15

PHILLS-1 and PHILLS-2 Inter-Comparison

PHILLS-1 and PHILLS-2 Inter-Comparison

Released DataPoint 2Point 1Point 3

Active Archivehttp://aa.flenvironmental.org

Active Archive

Active Archive

Outstanding IssuesModelingPhase function matters to Rrs! Prediction of Rrs will require particle specific phase functions.HyperspectralSome indication that the spectral calibration has shifted 0 3 nm, spectrally dependent.Atmospheric correction requires much more attention to parameter choices.Inter-comparison of 5 satellites and 5 aircraft!

~500K runs1) Zero order; 2) out of band; 3) red rich lamp source/blue rich scene; 4) extrapolate Blue and unfiltered.5 filters, 1,2 ,4, and 6 lamps =20 known settings124 x 124 optimization matrice. Every wavelength spreads light into every other wavelength.The reason behind the spatial shift is unknown. We at first did not think there was a corresponding spectral shift. But there does appear to be one. It unfortunately does not appear to be linear. Spectral shift correction is still unresolved.