Fluorescence component in the reflectance spectra from coastal waters. Dependence on water composition

A. Gilerson, J. Zhou, S. Hlaing, I. Ioannou, J. Schalles, B. Gross, F. Moshary, S. Ahmed

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Abstract

Based on HYDROLIGHT simulations of more than 2000 reflectance spectra from datasets typical of coastal waters with highly variable optically active constituents as well as on intercomparisons with field measurements, the magnitude of chlorophyll fluorescence was analyzed and parameterized as a function of phytoplankton, CDOM, and suspended inorganic matter concentrations. Using the parameterizations developed, we show that variations in the fluorescence component of water leaving radiance in coastal waters are due more to the variability of attenuation in the water than to the variability of the fluorescence quantum yield, which we estimate to be relatively stable at around 1%. Finally, the ranges of water conditions where fluorescence plays a significant role in the reflectance NIR peak and where it is effectively undetectable are also determined.

Original languageEnglish (US)
Pages (from-to)15702-15721
Number of pages20
JournalOptics Express
Volume15
Issue number24
DOIs
StatePublished - Nov 26 2007

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Gilerson, A., Zhou, J., Hlaing, S., Ioannou, I., Schalles, J., Gross, B., Moshary, F., & Ahmed, S. (2007). Fluorescence component in the reflectance spectra from coastal waters. Dependence on water composition. Optics Express, 15(24), 15702-15721. https://doi.org/10.1364/OE.15.015702