寒潮爆发

一次东亚寒潮爆发后冷涌发展的研究

A case study of development of a cold surge after outbreak of cold wave in East Asia

另一方面，与寒潮爆发有关的西伯利亚冷高压作为北半球冬季对流层的主要冷源会导致一系列行星尺度过程的响应。

Furthermore , the Siberian cold high associated with outbreaks of cold air may lead to the response of a chain of planetary-scale events .

高空冷中心强度达-45℃、地面冷高压中心强度达1060.0hPa是寒潮爆发的必要条件；

And the upper cold center intensity at-45 ℃ and the surface high pressures at 1060.0 hPa were the necessary conditions of the cold wave break .

综合分析表明，过赤道气流的增强主要是北半球台风引起的，与澳大利亚寒潮爆发关系不大。

Synthetic analysis shows that the intensification of the cross-equatorial currents is caused by the typhoon occurring in the northern hemisphere but has little relation with the cold surge in Australia .

本文研究了1980&1984年冬季19次东亚寒潮爆发过程中低频扰动的传播特征和行星尺度作用。

The present paper has delt with the characteristics of propagation of the winter monsoon dur-ing cold air outbreaks for 19 cases of 1980 & 1984 in East Asia as well as the associated plane-tary-scale effect .