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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. AIP Conference Proceedings. No.676. American Institute of Physics , Melville, NY, pp. 162-168. ISBN 0-7354-0145-4.

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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.

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Additional Information:© 2003 American Institute of Physics. Issue Date: 19 August 2003. The VHF radar data used in this paper was collected and analyzed at the Southern Florida Ocean Measurement Center (SFOMC) by Arthur Mariano and Edward Ryan. The authors are grateful to the Office of Naval Research and particularly to Manuel Fiadero for his support and advices. This research was funded by ONR grant N00014-97-1-0071.
Funding AgencyGrant Number
Office of Naval Research (ONR)N00014-97-1-0071
Subject Keywords:water pollution, radar, flow, Lyapunov methods, chaos
Series Name:AIP Conference Proceedings
Issue or Number:676
Classification Code:PACS: 92.20.Ny; 05.45.-a
Record Number:CaltechAUTHORS:20111010-085707360
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Official Citation:Lagrangian Structures in Very High-Frequency Radar Data and Optimal Pollution Timing Francois Lekien, Chad Coulliette, and Jerry Marsden, AIP Conf. Proc. 676, 162 (2003), DOI:10.1063/1.1612209
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:27132
Deposited By: Tony Diaz
Deposited On:10 Oct 2011 17:29
Last Modified:09 Nov 2021 16:46

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