Resonant excitation of rossby waves in the equatorial waveguide and their nonlinear evolution |
| |
Authors: | Reznik G M Zeitlin V |
| |
Affiliation: | P.P. Shirshov Institute of Oceanology, Moscow, Russia. |
| |
Abstract: | Nonlinear interactions between the baroclinic Rossby waves trapped in the equatorial waveguide and the barotropic Rossby waves freely propagating across the equator are studied within the two-layer model of the atmosphere, or the ocean. It is shown that a barotropic wave can resonantly excite a pair of baroclinic waves with amplitudes much greater than its proper amplitude. The envelopes of the baroclinic waves obey Ginzburg-Landau-type equations and exhibit nonlinear saturation and formation of characteristic "domain-wall" and "dark-soliton" defects. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|