Coherent Lagrangian swirls among submesoscale motions

F. J. Beron-Vera, A. Hadjighasem, Q. Xia, M. J. Olascoaga, G. Haller

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The emergence of coherent Lagrangian swirls (CLSs) among submesoscale motions in the ocean is illustrated. This is done by applying recent nonlinear dynamics tools for Lagrangian coherence detection on a surface flow realization produced by a data-assimilative submesoscale-permitting ocean general circulation model simulation of the Gulf of Mexico. Both mesoscale and submesoscale CLSs are extracted. These extractions prove the relevance of coherent Lagrangian eddies detected in satellite-altimetry–based geostrophic flow data for the arguably more realistic ageostrophic multiscale flow.

Original languageEnglish (US)
Pages (from-to)18251-18256
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume116
Issue number37
DOIs
StatePublished - Sep 10 2019

Keywords

  • High-resolution ocean models
  • Lagrangian coherence
  • Mesoscale eddies
  • Satellite altimetry
  • Submesoscale eddies

ASJC Scopus subject areas

  • General

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