Atmospheric correlation algorithm for satellite ocean color sensors

James E. Davies; Mervyn J. Lynch

doi:10.1117/12.266413

6 February 1997 Atmospheric correlation algorithm for satellite ocean color sensors

James E. Davies, Mervyn J. Lynch

Proceedings Volume 2963, Ocean Optics XIII; (1997) https://doi.org/10.1117/12.266413
Event: Ocean Optics XIII, 1996, Halifax, Nova Scotia, Canada

Abstract

Passive remote sensing of ocean color relies on the sunlight backscattered from the ocean, the water-leaving radiance, to convey information on the concentrations of optically active marine constituents. Observations of ocean color from space also contain light scattered by the overlying atmosphere. The determination and removal of the atmospheric contribution to the satellite detected radiance, in order to accurately determine the water-leaving radiance, is known as atmospheric correction. The atmospheric correction must be applied carefully since the ocean color community requires water-leaving radiance estimates to better than 5 percent from beneath an atmosphere that can, in some spectral regions of interest, account for 90 percent of the total satellite signal. Aerosols play an important role in determining the atmospheric scattered radiance to the extent that the principal difficulty that remains in atmospheric correction is accounting for the variability in space and time of aerosol optical properties. We are developing an atmospheric correction algorithm based on a tri-modal maritime aerosol model. Results are presented within the context of present and future ocean color sensors.

Citation Download Citation

James E. Davies and Mervyn J. Lynch "Atmospheric correlation algorithm for satellite ocean color sensors", Proc. SPIE 2963, Ocean Optics XIII, (6 February 1997); https://doi.org/10.1117/12.266413

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