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Proceedings Paper

Irradiance calculation model of CT-based underwater visibility
Author(s): Todd E. Bowers; Walton E. McBride III
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Paper Abstract

Contrast transmittance (CT) theory has been used to derive a simple two-parameter visibility model that has been used by the civilian and military sectors for over seventy years. We review this classical theory with special attention to its application to problems in estimating liminal visibility range for in-water divers. Previous work by Duntley of the MIT/SIO Visibility Lab states that calculations based on this simple model give reasonable agreement with observation provided all embedded assumptions hold. Recent dat form divers conducting shallow water observations indicate that these assumptions cause the model to give poor results in this domain. We investigate an enhanced method that eliminates some of these assumptions to provide better estimate of underwater diver visibility.

Paper Details

Date Published: 14 January 2002
PDF: 5 pages
Proc. SPIE 4488, Ocean Optics: Remote Sensing and Underwater Imaging, (14 January 2002); doi: 10.1117/12.452803
Show Author Affiliations
Todd E. Bowers, Planning Systems, Inc. (United States)
Walton E. McBride III, Planning Systems, Inc. (United States)

Published in SPIE Proceedings Vol. 4488:
Ocean Optics: Remote Sensing and Underwater Imaging
Robert J. Frouin; Robert J. Frouin; Gary D. Gilbert, Editor(s)

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