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Fluorescence component in the reflectance spectra from coastal waters. Dependence on water composition
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: the international electronic journal of optics 15: 15702-15721
In: Optics Express. Optical Society of America: Washington. ISSN 1094-4087, more
Peer reviewed article  

Available in  Authors 

Keywords
    Marine; Brackish water

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

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.

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