Amplitude Vacillation on a β-PlaneSource: Journal of the Atmospheric Sciences:;1981:;Volume( 038 ):;issue: 003::page 609Author:Boville, Byron A.
DOI: 10.1175/1520-0469(1981)038<0609:AVOAP>2.0.CO;2Publisher: American Meteorological Society
Abstract: Amplitude vacillation is studied using a spectral version of the two-level quasi-geostrophic model in a ?-plane channel. The parameters are chosen so that only a single wave may be unstable to the undisturbed basic state. It is shown that the weakly nonlinear theories which have been proposed do not work well on the ?-plane, because nonlinear interactions are not negligible even though only a single wave has any significant amplitude. The energetics and mechanism of amplitude vacillation on a ?-plane are discussed for a case with moderate dissipation and contrasted with the mechanism on an f-plane.
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| contributor author | Boville, Byron A. | |
| date accessioned | 2017-06-09T14:22:11Z | |
| date available | 2017-06-09T14:22:11Z | |
| date copyright | 1981/03/01 | |
| date issued | 1981 | |
| identifier issn | 0022-4928 | |
| identifier other | ams-18107.pdf | |
| identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4154076 | |
| description abstract | Amplitude vacillation is studied using a spectral version of the two-level quasi-geostrophic model in a ?-plane channel. The parameters are chosen so that only a single wave may be unstable to the undisturbed basic state. It is shown that the weakly nonlinear theories which have been proposed do not work well on the ?-plane, because nonlinear interactions are not negligible even though only a single wave has any significant amplitude. The energetics and mechanism of amplitude vacillation on a ?-plane are discussed for a case with moderate dissipation and contrasted with the mechanism on an f-plane. | |
| publisher | American Meteorological Society | |
| title | Amplitude Vacillation on a β-Plane | |
| type | Journal Paper | |
| journal volume | 38 | |
| journal issue | 3 | |
| journal title | Journal of the Atmospheric Sciences | |
| identifier doi | 10.1175/1520-0469(1981)038<0609:AVOAP>2.0.CO;2 | |
| journal fristpage | 609 | |
| journal lastpage | 618 | |
| tree | Journal of the Atmospheric Sciences:;1981:;Volume( 038 ):;issue: 003 | |
| contenttype | Fulltext |