Instability of some equatorially trapped waves

Adrian Constantin, Pierre Germain

Research output: Contribution to journalArticle

Abstract

A high-frequency asymptotics approach within the Lagrangian framework shows that some exact equatorially trapped three-dimensional waves are linearly unstable when their steepness exceeds a specific threshold. Key Points Instability investigation of some new waves. The instability mechanism differs from that for Kelvin waves. The Lagrangian flow is not explicitly available in the Eulerian representation.

Original languageEnglish (US)
Pages (from-to)2802-2810
Number of pages9
JournalJournal of Geophysical Research: Space Physics
Volume118
Issue number6
DOIs
StatePublished - 2013

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trapped wave
Kelvin waves
Kelvin wave
slopes
thresholds

Keywords

  • equatorially trapped wave
  • instability

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Oceanography

Cite this

Instability of some equatorially trapped waves. / Constantin, Adrian; Germain, Pierre.

In: Journal of Geophysical Research: Space Physics, Vol. 118, No. 6, 2013, p. 2802-2810.

Research output: Contribution to journalArticle

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