Absorption coefficients of the ocean: their measurement and implications for remote sensing

John T.O. Kirk

doi:10.1117/12.266441

6 February 1997 Absorption coefficients of the ocean: their measurement and implications for remote sensing

John T.O. Kirk

Proceedings Volume 2963, Ocean Optics XIII; (1997) https://doi.org/10.1117/12.266441
Event: Ocean Optics XIII, 1996, Halifax, Nova Scotia, Canada

Abstract

The spectral energy distribution of the emergent radiant flux from the ocean is determined by the inherent optical properties of the water, especially the absorption coefficients. To interpret the remotely sensed spectral distribution in terms of ocean composition we need a database relating seawater absorption spectra to composition, especially in terms of phytoplankton concentration and type, and soluble and detrital color. Measurement of seawater absorption spectra is difficult because absorption is so low, and because of the confounding effects of scattering. The use of the integrating cavity absorption meter to overcome these problems is discussed, and an account is also given of the potential and limitations of seeking to estimate absorption coefficient values form in-water spectral irradiance data.

Citation Download Citation

John T.O. Kirk "Absorption coefficients of the ocean: their measurement and implications for remote sensing", Proc. SPIE 2963, Ocean Optics XIII, (6 February 1997); https://doi.org/10.1117/12.266441

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