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wwww@SIAMM (Weekly Workshop on Water Waves)
主题：二次切变基本流和地形对斜压不稳定的影响
主讲：宋健教授 (内蒙古工业大学)
时间：2022年10月8日(周六)下午13:30
地点：上海市静安区延长路149号力学所308室
网络：#腾讯会议：378-992-8082
主持：卢东强 (SIAMM.上海大学)
【摘要】 On the β plane approximation, the two-layer quasi-geostrophic mode is used to study the baroclinic instability of the quadric shear basic zonal flows on a uniform bottom topography. The phase speed and growth rate of instability waves are functions of the shear zonal basic flows and bottom topographic slope. The study focus is on the effects of topography and the quadric shear basic zonal flows. The meridional slope destabilize (stabilize) zonal flows, it plays an unstable role in disturbance. The effect of the second derivative of basic zonal flows is to accelerate the instability of disturbance. The zonal slope always destabilizes the zonal basic flows through zonal and meridional wavenumber. Moreover the effect of the second derivative of basic zonal flows is to accelerate the instability of disturbance.
【嘉宾】宋健，博士、内蒙古工业大学校聘教授，主要从事非线性大气海洋动力学、地球物理流体力学和流体力学稳定性等方面的理论研究。
主持国家自然科学基金面上项目一项，自治区自然科学基金项目3项，以第一作者和通讯作者发表论文30多篇。
