[BBC03-P03] The Influence of Aerosol Optical Thickness and Mesoscale Eddies on Chlorophyll-a
Keywords:Chlorophyll-a concentration, Aerosol optical thickness, Sea surface height, Mesoscale eddy, Coupling relationship
Using 12 years’ of AOT and Chl-a data from the NASA/MODIS and SeaWiFS sensors, we’ve studied the distributions and the coupling relationship between AOT and Chl-a all over the world. The correlation map shows some interesting areas on the earth. It is found that the highest positive correlation areas of the AOT and Chl-a time series are in the east coastal area of Africa, Baltic Sea, Caspian Sea and the band area in the Pacific between south Japan and San Francisco of USA; the highest negative correlation areas of the Chl-a and AOT time series are in The Mediterranean, west-south and east-south coastal areas of Australia.
Moreover, we analyze 10 years of measurements of SSH fields and concurrent satellite measurements of upper-ocean CHL to show that mesoscale eddies exert a strong influence on the CHL field.