非纬向基流的非线性斜压不稳定  

NONLINEAR BAROTROPIC INSTABILITY OF NONZONAL FLOWS

作　　者：陆维松[1] 杨松[1] 

机构地区：[1]南京气象学院

出　　处：《气象学报》1992年第1期1-11,共11页Acta Meteorologica Sinica

摘　　要：本文从含Ekman摩擦的非线性两层斜压模式出发,应用Serrin-Joseph的能量方法,按变分原理,分别用扰动总能量、总位涡拟能和两者的线性组合导得了非纬向基流的非线性斜压稳定性判据。并和线性判据作了比较。From a two-level nonlinear baroclinic model including frictional dissipation, using Serrin-Joseph's energy method, by means of the variational principle, the nonlinear baroclinic stability criterions of nonzonal flows with the total energy, and total enstrophy, the linear combination of above two quantities respectively are found, and these criterions are compared with the linear stability criterion.

关 键 词：纬向基流 非线性 斜压稳定性 位涡 变分原理 Ekman摩擦 

分 类 号：P433.2[天文地球—大气科学及气象学]