Ocean Color Algorithm Evaluation: OC2/OC4/CZCS-GP

Version 4  of Chlorophyll algorithms OC4 and OC2

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Coefficients for OC4 version 4  (Maximum Band Ratio, 4th Order Polynomial)
a = [0.366,-3.067,1.930,0.649,-1.532]
R = ALOG10((Rrs443>Rrs490>Rrs510)/Rrs555)
Chl a (ug/l) = 10.0^(a(0) + a(1)*R +  a(2)*R^2   + a(3)*R^3  + a(4)*R^4)

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Coefficients for OC2 version 4  (Modified Cubic Polynomial)
a = [0.319, -2.336, 0.879, -0.135, -0.071]
R = ALOG10(Rrs490/Rrs555)
Chl a (ug/l) = 10.0^(a(0) + a(1)*R +  a(2)*R^2   + a(3)*R^3)  +a(4)

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Summary Plots Description
OC2 algorithm statistics plot
OC4 algorithm statistics plot
Comparison of OC2 and OC4 algorithms
OC4 Demonstration plots:</
<Chlorophyll a vs. Band Ratios
OC4 Demonstration plot:
Maximum Band vs. Band Ratio Frequency Plot
OC4 Demonstration plot:
Maximum Band vs. Chl a Frequency Plot
Comparison of OC4 and CZCS-GP's