本文對東亞地區夏季所發生之高層冷心低壓加以詳細分析,此等冷低之發生大多由於上層對流層中先有冷槽存在,槽線南端與極區源地割離而形成,其動向受中緯度暖心高壓南緣東向氣流駛行偏向西移動,民國六十四年八月中國大陸上空所發生之冷低實例對冷低之結構作較詳細介紹。
A detailed study is made of a cold core low in the upper troposphere in Far East in summer. It is found that most cold core lows form from a preexisting cold trough that is ultimately cut off from its connection with the polar source region in the upper tropsphere. It moves generally westward under the influence of the steering current south of a warm high. A case study was also selected for the purpose of providing some assistance in investigating the structure of upper cold core lows.
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