Effects of suspended sediment concentration on the absorption and scattering coefficients

Gregory E. Terrie; Sherwin Ladner; Richard A. Gould Jr.

doi:10.1117/12.266501

6 February 1997 Effects of suspended sediment concentration on the absorption and scattering coefficients

Gregory E. Terrie, Sherwin Ladner, Richard A. Gould Jr.

Proceedings Volume 2963, Ocean Optics XIII; (1997) https://doi.org/10.1117/12.266501
Event: Ocean Optics XIII, 1996, Halifax, Nova Scotia, Canada

Abstract

The scattering coefficient (b) for the nearshore waters off the coast of North Carolina near Camp Lejeune is strongly influenced by suspended sediment concentration and total particulate cross-sectional area (x_g). In-situ measurements of a and b were made using a WET Labs AC9 meter. Estimates of suspended sediment concentration and total particulate cross-sectional area were determined from laser particle size analyses of surface water samples. The SeaWiFS bio-optical algorithm was modified for Case II waters and used to estimate a and b_b from remote sensing reflectance (R_rs). After conversion from backscattering (b_b) to total scattering (b), modeled a and b values from the modified SeaWiFS algorithm were compared to the measured values. The differences between the measured and estimated values appear to be directly related to increases in suspended sediment concentration and x_g. Correlations of about 0.90 were obtained for b vs x_g and b_b vs x_g.

Citation Download Citation

Gregory E. Terrie, Sherwin Ladner, and Richard A. Gould Jr. "Effects of suspended sediment concentration on the absorption and scattering coefficients", Proc. SPIE 2963, Ocean Optics XIII, (6 February 1997); https://doi.org/10.1117/12.266501

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