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.

doi:/10.1364/OE.24.003615

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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://dx.doi.org/10.1364/OE.24.003615

In: Optics Express. Optical Society of America: Washington. ISSN 1094-4087; e-ISSN 1094-4087

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VLIZ: Open access 302447 [ download pdf ]

Keyword

Marine/Coastal

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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