Accurate extraction of Lagrangian coherent structures over finite domains with application to flight data analysis over Hong Kong International Airport

Wenbo Tang, Pak Wai Chan, George Haller

Research output: Contribution to journalArticle

43 Scopus citations

Abstract

Locating Lagrangian coherent structures (LCS) for dynamical systems defined on a spatially limited domain present a challenge because trajectory integration must be stopped at the boundary for lack of further velocity data. This effectively turns the domain boundary into an attractor, introduces edge effects resulting in spurious ridges in the associated finite-time Lyapunov exponent (FTLE) field, and causes some of the real ridges of the FTLE field to be suppressed by strong spurious ridges. To address these issues, we develop a finite-domain FTLE method that renders LCS with an accuracy and fidelity that is suitable for automated feature detection. We show the application of this technique to the analysis of velocity data from aircraft landing at the Hong Kong International Airport.

Original languageEnglish (US)
Article number053904CHA
JournalChaos
Volume20
Issue number1
DOIs
StatePublished - Mar 2010

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Mathematical Physics
  • Physics and Astronomy(all)
  • Applied Mathematics

Fingerprint Dive into the research topics of 'Accurate extraction of Lagrangian coherent structures over finite domains with application to flight data analysis over Hong Kong International Airport'. Together they form a unique fingerprint.

  • Cite this