Lagrangian coherent structures near a subtropical jet stream

Wenbo Tang, Manikandan Mathur, George Haller, Douglas C. Hahn, Frank H. Ruggiero

Research output: Contribution to journalArticle

34 Scopus citations

Abstract

Direct Lyapunov exponents and stability results are used to extract and distinguish Lagrangian coherent structures (LCS) from a three-dimensional atmospheric dataset generated from the Weather Research and Forecasting (WRF) model. The numerical model is centered at 19.78°N, 155.55°W, initialized from the Global Forecast System for the case of a subtropical jet stream near Hawaii on 12 December 2002. The LCS are identified that appear to create optical and mechanical turbulence, as evidenced by balloon data collected during a measurement campaign near Hawaii.

Original languageEnglish (US)
Pages (from-to)2307-2319
Number of pages13
JournalJournal of the Atmospheric Sciences
Volume67
Issue number7
DOIs
StatePublished - Jul 1 2010

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Keywords

  • Jets
  • Lagrangian circulation/transport
  • Stability
  • Subtropics

ASJC Scopus subject areas

  • Atmospheric Science

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