A weakly nonlinear primitive equation baroclinic life cycle

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Abstract

A weakly nonlinear baroclinic life cycle is examined with a spherical, multilevel, primitive equation model. The structure of the initial zonal jet is chosen so that the disturbance grows very slowly, that is, linear growth rate less than 0.1 day-1, and the life cycles of the disturbance are characterized by baroclinic growth and followed by barotropic decay. It is found that if the disturbance grows sufficiently slowly, the decay is baroclinic. As a result, the procedure for determining this weakly nonlinear jet is rather delicate. -from Author

Original languageEnglish (US)
Pages (from-to)23-34
Number of pages12
JournalJournal of the Atmospheric Sciences
Volume51
Issue number1
DOIs
StatePublished - 1994

All Science Journal Classification (ASJC) codes

  • Atmospheric Science

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