Optimal Pollution Mitigation in Monterey Bay Based on Coastal Radar Data and Nonlinear Dynamics

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• 作者：Chad Coulliette ; Francois Lekien ; Jeffrey D. Paduan ; George Haller ; Jerrold E. Marsden
• 刊名：Environmental Science & Technology
• 出版年：2007
• 出版时间：September 15, 2007
• 年：2007
• 卷：41
• 期：18
• 页码：6562 - 6572
• 全文大小：1452K
• 年卷期：v.41,no.18(September 15, 2007)
• ISSN：1520-5851

文摘

High-frequency (HF) radar technology produces detailedvelocity maps near the surface of estuaries and bays. Theuse of velocity data in environmental prediction, nonetheless,remains unexplored. In this paper, we uncover a strikingflow structure in coastal radar observations of MontereyBay, along the California coastline. This complex structuregoverns the spread of organic contaminants, such asagricultural runoff which is a typical source of pollution inthe bay. We show that a HF radar-based pollutionrelease scheme using this flow structure reduces theimpact of pollution on the coastal environment in the bay.We predict the motion of the Lagrangian flow structuresfrom finite-time Lyapunov exponents of the coastal HF velocitydata. From this prediction, we obtain optimal releasetimes, at which pollution leaves the bay most efficiently.