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The possibility of the retrieval of the water's inherent optical properties (IOP) from Secchi disk observations is
discussed. The paper directly addresses objections to the use of Secchi disks raised by Preisendorfer in 1986. A new
version of Secchi depth theory is given, which in contrast to conventional Secchi disk theories includes the effects of
light reflection from the sea surface and treats measurements from both the sunny and shaded sides of a vessel. Empirical
correlations between different IOP are used to estimate not only the attenuation coefficient, but also the single scattering
albedo and the backscattering probability at 550 nm from Secchi depth data. The theory is compared with measurements
made in the Black Sea.
Iosif M. Levin andTamara M. Radomyslskaya
"Secchi disk theory: a reexamination", Proc. SPIE 6615, Current Research on Remote Sensing, Laser Probing, and Imagery in Natural Waters, 66150O (13 April 2007); https://doi.org/10.1117/12.740464
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Iosif M. Levin, Tamara M. Radomyslskaya, "Secchi disk theory: a reexamination," Proc. SPIE 6615, Current Research on Remote Sensing, Laser Probing, and Imagery in Natural Waters, 66150O (13 April 2007); https://doi.org/10.1117/12.740464