SS3.03 Recent Advances in Coastal and River Plume Remote Sensing
Date: Thursday, June 13, 2002
Time: 4:45:00 PM
Location: View Royal
 
ArnoneRA, NRL, Stennis Space Center, USA, arnone@nrlssc.navy.mil
Gould, R, W, NRL, SSC, USA, gould@nrlssc.navy.mil
Ladner, S, , PSI, SSC, USA, ladner@nrlssc.navy.mil
Weidemann, A, , NRL, SSC, USA, alanw@nrlssc.navy.mil
Bowers, T, , PSI, SSC, USA, bowers@nrlssc.navy.mil
 
SEASONAL BIO-OPTICAL PROPERTIES OF THE COASTAL GULF OF MEXICO AND INFLUENCE OF RIVERINE INPUTS
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Seasonal riverine discharge in the Northern Gulf Of Mexico influences bio-optical (chlorophyll, absorption and scattering) properties in coastal waters. We use ocean color satellite imagery (SeaWIFS) to characterize the seasonal trends of bio-optical properties and the impact of riverine discharge on coastal waters. Improved algorithms are used to uncouple the remote sensing reflectance of coastal waters into its optical constituents including backscattering (associated with sediments loading), absorption from colored dissolved organic (CDOM) and absorption from chlorophyll. Weekly composite satellite properties were defined for a yearly period and compared with the weekly flux of total riverine input measured from river gauges onto the continental shelf. We examined a time-series of the longitudinal distribution of these properties from the Mississippi River Delta to the Florida Coast using weekly composites. These distributions illustrate changing bio-optical regimes; which we believe are associated with riverine inputs and coupling of physical features along the coast. ________________________________