中文摘要：

用每月吝啬的大气的重新分析数据和海洋的吸收数据产品，在在西北 Pacificwas 的中间、高的纬度的冬季海洋空气相互作用学习了。关键区域被选择学习阿留申群岛之土人的变化低， 500hPa 西，有定义为在影响自台湾东面的菲律宾海流向日本的暖流的区域之间的阿留申群岛之土人 Lowindex，带的索引和南方的 SST 坡度的三个索引的 meriodional 海表面温度(SST ) 坡度影响 andOyashio 的区域。结果看那什么时候有一个更深的阿留申群岛之土人低在阿留申群岛之土人的西方的部分由更大的在北方的风伴随了低， NorthPacific 的极下的旋回被加强，在 影响Oyashio 的区域的 SST 被减少，在Kuroshio-influ- enced 区域和 影响Oyashio 的区域之间的 meridionalS 圣坡度被增加，接着，它将由于热风的关系在上面的对流层提高西的喷气。Thestrengthened 西的喷气为在北方 Pacificbeneath 上低的更深的阿留申群岛之土人造成一种有利状况喷气出口区域的左部分。因而，积极反馈在那里形成。

英文摘要：

Using monthly mean atmospheric reanalysis data and oceanic assimilation data product, the winter ocean-atmosphere interaction in middle and high latitude in Northwest Pacific was studied. Key regions were chosen to study the variations of Aleutian Low, the 500hPa westerly, the meriodional sea surface temperature （SST） gradient with three indices defined as Aleutian Low index, zonal index and meridional SST gradient between Kuroshio-influenced region and Oyashio-influenced region. The results show that when there is a deeper Aleutian Low accompanied by a stronger northerly wind in the western part of the Aleutian Low, the subpolar gyre of North Pacific is strengthened, the SST in the Oyashio-influenced region is decreased and the meridional SST gradient between Kuroshio-influenced region and Oyashio-influenced region is increased, which, in turn, will enhance the westerly jet in the upper troposphere due to thermal-wind relation. The strengthened westerly jet makes a favorable condition for the deeper Aleutian Low over North Pacific beneath the left part of the jet exit region. Consequently, a positive feedback forms there.