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Improved correction methods for field measurements of particulate light backscattering in turbid waters
Doxaran, D.; Leymarie, E.; Nechad, B.; Dogliotti, A.; Ruddick, K.; Gernez, P.; Knaeps, E. (2016). Improved correction methods for field measurements of particulate light backscattering in turbid waters. Optics Express 24(4): 3615-3637. https://hdl.handle.net/10.1364/OE.24.003615
In: Optics Express. Optical Society of America: Washington. ISSN 1094-4087
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • Doxaran, D.
  • Leymarie, E.
  • Nechad, B.
  • Dogliotti, A.
  • Ruddick, K.
  • Gernez, P.
  • Knaeps, E.

Abstract
    Monte Carlo simulations are used to compute the uncertainty associated to light backscattering measurements in turbid waters using the ECO-BB (WET Labs) and Hydroscat (HOBI Labs) scattering sensors. ECO-BB measurements provide an accurate estimate of the particulate volume scattering coefficient after correction for absorption along the short instrument pathlength. For Hydroscat measurements, because of a longer photon pathlength, both absorption and scattering effects must be corrected for. As the standard (sigma) correction potentially leads to large errors, an improved correction method is developed then validated using field inherent and apparent optical measurements carried out in turbid estuarine waters. Conclusions are also drawn to guide development of future short pathlength backscattering sensors for turbid waters.

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