Light scattering on turbulence and on particulates

Darek Bogucki; Andrzej Domaradzki; Dariusz Stramski; R. Zaneveld

doi:10.1117/12.266486

6 February 1997 Light scattering on turbulence and on particulates

Darek Bogucki, Andrzej Domaradzki, Dariusz Stramski, R. Zaneveld

Proceedings Volume 2963, Ocean Optics XIII; (1997) https://doi.org/10.1117/12.266486
Event: Ocean Optics XIII, 1996, Halifax, Nova Scotia, Canada

Abstract

We have investigated numerically and experimentally the scattering of a light beam by turbulence. We compare the effects of scattering by typical coastal and oceanic particulate distributions with those of turbulence-induced scattering. We find that turbulence can dominate scattering up to 5-10 degrees for the costal region and for the upper layer of the open ocean. Our preliminary experiment confirms predictions that the frequently observed in situ high values of the volume scattering function at small angles are related to scattering on turbulent inhomogeneities in seawater. The ability of turbulent flow to scaler light more than particulates at small angles affects underwater visibility. Current models of underwater visibility account only for the effects of particulates and totally ignore the effects of turbulence. Here we show, with the support of the older experimental data, that turbulence can limit the resolution to an object of size 1 m over a viewing distance of 10m for strong coastal turbulent regimes.

Citation Download Citation

Darek Bogucki, Andrzej Domaradzki, Dariusz Stramski, and R. Zaneveld "Light scattering on turbulence and on particulates", Proc. SPIE 2963, Ocean Optics XIII, (6 February 1997); https://doi.org/10.1117/12.266486

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