An Investigation of the Cutoff Low in Spring Season at Aisa Area

沈畦

Hsi Shen

Abstract

　　During the spring season our weather becomes a different pattern from the winter’s. Such as front becomes qusi-stationary and carries less precipitation than the winter’s. For all this we think they were caused by the Cutoff Low In this study we like to restudy the phenomena of the Cutoff Low. To find out what conditions it needs ； what vertical struction it looks like ； and how the energy converted. But first we like to present a selected case inves-tigation to make our first step.