Instability of some equatorially trapped waves

Adrian Constantin, Pierre Germain

Research output: Contribution to journalArticlepeer-review


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: Oceans
Issue number6
StatePublished - 2013


  • equatorially trapped wave
  • instability

ASJC Scopus subject areas

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

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