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欧亚地区500百帕上纬向风特征及其与中国天气的关系
The Characteristics of Zonal Winds at 500 hPa in Eurasian Region and Its Relation to the Weather in China
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摘要: 本文定义了两个指数：一个是西风极区带面积指数，另一个是西风带强度指数。发现北半球纬向环流有几个周期振荡，中国的天气与北半球西风带强度及其南北迁移有密切关系。Abstract: In this paper, two indices have been defined. One is the circumpolar area index of north to the westerlies and the other is the intensity index of westerlies. It has been found that by using these two indices the zonal circulation in the Northern Hemisphere has several periodical oscillations and that the weather in China is closely related to the intensity and the northward or southward shift of the westerlies in the Northern Hemisphere.
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