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Lagrangian Structures in Very High-Frequency Radar Data and Optimal Pollution Timing

Lekien, Francois and Coulliette, Chad and Marsden, Jerry (2003) Lagrangian Structures in Very High-Frequency Radar Data and Optimal Pollution Timing. In: Experimental chaos : 7th Experimental Chaos Conference, San Diego, California, 26-29 August 2002. American Institute of Physics Conference Proceedings. No.676. American Institute of Physics , Melville, NY, pp. 162-168. ISBN 0-7354-0145-4 http://resolver.caltech.edu/CaltechAUTHORS:LEKaipcp03

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Abstract

Very High-frequency (VHF) radar technology produces detailed surface velocity maps near the surface of coastal waters. The use of measured velocity data in environmental prediction, however, has remained unexplored. In this paper, we uncover a striking flow structure in coastal radar observations along the coast of Florida. This structure governs the spread of organic contaminants or passive drifters released in the area. We compute the Lyapunov exponents of the VHF radar data to determine optimal release windows in which contaminants are advected efficiently away from the coast and we show that a VHF radar-based pollution release scheme using the hidden flow structure reduces the effect of industrial pollution in the coastal environment.


Item Type:Book Section
Additional Information:©2003 American Institute of Physics
Subject Keywords:water pollution; radar; flow; Lyapunov methods; chaos
Record Number:CaltechAUTHORS:LEKaipcp03
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:LEKaipcp03
Alternative URL:http://dx.doi.org/10.1063/1.1612209
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:2495
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:06 Apr 2006
Last Modified:26 Dec 2012 08:49

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