POLAR LOW AS AN EXTRATROPICAL CISK DISTURBANCE

被引：145

作者：

RASMUSSEN, E

机构：

[1] Institute of Theoretical Meteorology, University of Copenhagen

来源：

QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY | 1979年 / 105卷 / 445期

关键词：

D O I：

10.1002/qj.49710544504

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

It is suggested that the polar low is basically a thermal instability phenomenon much akin to a small tropical cyclone. A quasi‐geostrophic model is employed in order to find small‐scale unstable CISK‐forced disturbances in a barotropic basic flow with a vertical structure similar to that actually observed during a polar air outbreak. Case studies of some polar low developments in some ways support a convective hypothesis according to which the polar low is driven by latent heat released in convection clouds. Copyright © 1979 Royal Meteorological Society

引用

页码：531 / 549

页数：19