夏季月份赤道西风的变动及其与低纬环流的关系
THE VARIATION OF THE EQUATORIAL WESTERLIESAND ITS RELATION WITH THE LARGE-SCALE CIRCULATION IN THE LOW LATITUDE IN SUMMER
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摘要: 本文利用1979年5-8月的FGGE网格点资料,设计了一个判别指数|v/u|,用来确定赤道西风的存在及其演变特征.分析表明,赤道西风是印度洋低纬地区的一支重要的基本气流.文中分析了这支基本气流的三维结构,并粗略地论述了它与该地区环流的关系.Abstract: In this paper, we designed a critical index |v/u| to determine the exists and the evolutional characteristics of the equatorial westerlies by using the FGGE data from May to August of 1979.The structures of the equatorial westerlies and its relationship with the large-scale circulation in the low latitudes is discussed in details. It shows that these equatorial westerlies are an important basic current in the low latitudes in Indian Ocean. Finally, the schematic picture of the three-dimensional circulation structure of these equatorial westerlies as given.
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