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Microstructure Profiles of Laser-induced Chlorophyll Fluorescence Spectra: Evaluation of Backscatter and Forward-Scatter Fiber-Optic Sensors

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https://ir.library.oregonstate.edu/concern/articles/fn107045d

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  • The implementation and characterization of backscatter and forward-scatter fiber-optic fluorescence sensors attached to a microstructure profiling instrument are described. By using an optical multichannel array detector to record emission spectra, eight profiles per hour of chlorophyll fluorescence spectra at 2-cm intervals can be obtained throughout the upper 100 m of ocean. The advantages and disadvantages realized by the deployment of the two sensors are compared with respect to the determination of in situ chlorophyll concentrations and fluorescence microstructure in the ocean. It is concluded that the forward-scatter sensor has better signal-to-noise and signal variability characteristics than does the backscatter sensor and is less susceptible to nonlinear fluorescence responses of phytoplankton due to effects such as fluorescence induction.
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  • Desiderio, Russell A., Timothy J. Cowles, James N. Moum, Michael Myrick, 1993: Microstructure Profiles of Laser-induced Chlorophyll Fluorescence Spectra: Evaluation of Backscatter and Forward-Scatter Fiber-Optic Sensors. Journal of Atmospheric and Oceanic Technology, 10, 209–224.
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  • 10
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  • 2
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  • This work was supported by NSF Grant OCE-8620174 and ONR Contract N-00014-87-K-009.
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