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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Submitted on : Monday, April 4, 2016 - 2:25:16 PM Last modification on : Monday, December 14, 2020 - 9:54:20 AM Long-term archiving on: : Monday, November 14, 2016 - 4:09:29 PM
David Doxaran, Edouard Leymarie, Bouchra Nechad, Ana Dogliotti, Kevin Ruddick, et al.. Improved correction methods for field measurements of particulate light backscattering in turbid waters. Optics Express, Optical Society of America - OSA Publishing, 2016, 24 (4), pp.3615-3637. ⟨10.1364/OE.24.003615⟩. ⟨hal-01297514⟩