Improved correction methods for field measurements of particulate light backscattering in turbid waters

Optics Express
David DoxaranEls Knaeps

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.

References

Mar 20, 2002·Applied Optics·Curtis D MobleyEmmanuel Boss
May 28, 2007·Optics Express·A L WhitmireW S Pegau
Oct 1, 2007·Optics Express·David DoxaranEdouard Leymarie
Dec 17, 2009·Applied Optics·James M Sullivan, Michael S Twardowski
Sep 15, 2015·Applied Optics·Wayne Homer Slade, Emmanuel Boss

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