Evaporation-wind feedback and the organizing of tropical convection on the planetary scale. Part II: nonlinear evolution

Xie Shang-Ping Xie, A. Kubokawa, K. Hanawa

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

In this model, the QL-EWFB instability causes tropical convection to organize on the planetary scale and a wavenumber one Kelvin wave-like structure dominates the east-west circulation in the tropics. An increase of the static stability that is in phase with the surface evaporation stabilizes the EWFB mode. For large surface humidity, a hierarchy of convective structures appear as a result of the nonlinear adjustment of the QL mode at large amplitudes. Isolated grid-size individual convective zones move randomly, while a wavenumber one envelope of this convection propagates eastward at a constant speed. -from Authors

Original languageEnglish
Pages (from-to)3884-3893
Number of pages10
JournalJournal of the Atmospheric Sciences
Volume50
Issue number23
Publication statusPublished - 1993 Jan 1

ASJC Scopus subject areas

  • Atmospheric Science

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