| INVESTIGATION ON GEOSTROPHIC ADJUSTMENT,FRONTOGENESIS AND OSCILLATIONS |
| |
| 作者姓名： | 潘益农 伍荣生 |
| |
| 作者单位： | The Key Laboratory of Mesosacle Severe Weather Department of Atmospheric Sciences，The Key Laboratory of Mesosacle Severe Weather，Department of Atmospheric Sciences |
| |
| 基金项目： | This research was supported by the National Natural Science Foundation of China under Grants:49675259 and 49735180，The National Key Basic Research Development Program:CHERES |
| |
| 摘 要： | Geostrophic adjustment and frontogenesis are examined by means of the 2-D ARPS model.The simulation shows that.without the large-scale forcing,both the frontogenesis and frontolysisare observed during the geostrophic adjustment process and the intensity of the front oscillates inthe case of no discontinuity.The convergence (divergence) induced by the secondary circulation isthe most important factor for frontogenesis (frontolysis) at the top and bottom boundaries.Theamplitude and period of oscillation are dependent on the initial atmospheric stratification and theCoriolis frequency,and they are related to the inertio-gravity wave.
|
INVESTIGATION ON GEOSTROPHIC ADJUSTMENT,FRONTOGENESIS AND OSCILLATIONS |
| |
| PAN Yinong WU Rongsheng The Key Laboratory of Mesosacle Severe Weather.INVESTIGATION ON GEOSTROPHIC ADJUSTMENT,FRONTOGENESIS AND OSCILLATIONS[J].Acta Meteorologica Sinica,2001(3). |
| |
| Authors: | PAN Yinong WU Rongsheng The Key Laboratory of Mesosacle Severe Weather |
| |
| Institution: | PAN Yinong WU Rongsheng The Key Laboratory of Mesosacle Severe Weather,Department of Atmospheric Sciences,Nanjing University,Nanjing 210093 |
| |
| Abstract: | Geostrophic adjustment and frontogenesis are examined by means of the 2-D ARPS model. The simulation shows that.without the large-scale forcing,both the frontogenesis and frontolysis are observed during the geostrophic adjustment process and the intensity of the front oscillates in the case of no discontinuity.The convergence (divergence) induced by the secondary circulation is the most important factor for frontogenesis (frontolysis) at the top and bottom boundaries.The amplitude and period of oscillation are dependent on the initial atmospheric stratification and the Coriolis frequency,and they are related to the inertio-gravity wave. |
| |
| Keywords: | geostrophic adjustment frontogenesis and frontolysis inertio-gravity oscillation |
| 本文献已被 CNKI 等数据库收录！ |
