论文部分内容阅读
研究了鄂霍次克海阻高及西太平洋副热带高压的关系,解释了当鄂霍次克海阻高活跃时副热带高压北上缓慢的原因。具体如下(1)通过对鄂霍次克海阻高指数和500 hPa高度的相关分析发现,夏季东亚附近容易出现一个类似偶极子的遥相关类型;(2)这个遥相关类型与鄂霍次克海阻高发展时产生的从鄂霍次克海经日本东部海面到副热带方面传播的波列紧密相关;(3)伴随鄂霍次克海高压的发展,此波列的传播形成一个以日本东部海面为中心的气旋式环流,起着削弱副高北缘的重要作用。这个作用可以部分解释为什么1998年夏季副高会非常偏南。
The relationship between the sea level of the Okhotsk and the subtropical high in the western Pacific has been studied, and the reason why the subtropical high is slowly going north when the Okhotsk high sea resistance is active is explained. The details are as follows: (1) By correlation analysis of Sea-Goh high index and 500 hPa height, a teleconnect-like teleconnection type appears easily in the summer of East Asia; (2) This teleconnection type is closely related to the Sea of Okhotsk (3) With the development of the Sea of High Seas over the Sea of Okhotsk, the wave train has been propagated to form a sea wave centered on the eastern part of Japan The cyclonic circulation plays an important role in weakening the northern margin of the subtropical high. This effect can partly explain why the 1998 summer subtropical high will be very southward.