CaltechAUTHORS
  A Caltech Library Service

The correlation between surface drifters and coherent structures based on high-frequency radar data in Monterey Bay

Shadden, Shawn C. and Lekien, Francois and Paduan, Jeffrey D. and Chavez, Francisco P. and Marsden, Jerrold E. (2009) The correlation between surface drifters and coherent structures based on high-frequency radar data in Monterey Bay. Deep-Sea Research. Part II, Topical Studies in Oceanography, 56 (3-5). pp. 161-172. ISSN 0967-0645. http://resolver.caltech.edu/CaltechAUTHORS:20090827-100634927

[img] PDF - Published Version
Restricted to Repository administrators only
See Usage Policy.

1863Kb

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20090827-100634927

Abstract

This paper investigates the transport structure of surface currents around the Monterey Bay, CA region. Currents measured by radar stations around Monterey Bay indicate the presence of strong, spatial and temporal, nonlinear patterns. To understand the geometry of the flow in the bay, Lagrangian coherent structures (LCS) are computed. These structures are mobile separatrices that divide the flow into regions of qualitatively different dynamics. They provide direct information about the flow structure but are geometrically simpler than particle trajectories themselves. The LCS patterns were used to reveal the mesoscale flow conditions observed during the 2003 Autonomous Ocean Sampling Network (AOSN-II) experiment. Drifter paths from the AOSN experiment were compared to the patterns induced by the LCS computed from high-frequency radar data. We verify that the fate of the drifters can be better characterized based on the LCS than direct interpretation of the current data. This property can be exploited to optimize drifter deployment.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.dsr2.2008.08.008DOIUNSPECIFIED
Additional Information:© 2008 Elsevier Ltd. Accepted 16 August 2008. Available online 26 September 2008. The research in this paper was supported in part by the ASAP MURI project, ONR-MURI Contract N00014-04-1-0534.
Funders:
Funding AgencyGrant Number
Multidisciplinary University Research Initiative (MURI)UNSPECIFIED
Office of Naval Research - Multidisciplinary University Research Initiative (ONR-MURI)N00014-04-1-0534
Subject Keywords:Lagrangian coherent structures; Aperiodic flows; Chaotic transport; Lyapunov exponents; Drifters; Coastal radar
Record Number:CaltechAUTHORS:20090827-100634927
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20090827-100634927
Official Citation:Shawn C. Shadden, Francois Lekien, Jeffrey D. Paduan, Francisco P. Chavez, Jerrold E. Marsden, The correlation between surface drifters and coherent structures based on high-frequency radar data in Monterey Bay, Deep Sea Research Part II: Topical Studies in Oceanography, Volume 56, Issues 3-5, AOSN II: The Science and Technology of an Autonomous Ocean Sampling Network, February 2009, Pages 161-172, ISSN 0967-0645, DOI: 10.1016/j.dsr2.2008.08.008. (http://www.sciencedirect.com/science/article/B6VGC-4TJ1HH1-3/2/9f098e9e2684e5cd8f53e69ab3c59c26)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:15351
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:14 Sep 2009 16:56
Last Modified:26 Dec 2012 11:15

Repository Staff Only: item control page