| 冬季流入南印度洋的低空越赤道气流分析 |
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| 引用本文： | 王凤娥.冬季流入南印度洋的低空越赤道气流分析[J].应用气象学报,1991,2(4):416-422. |
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| 作者姓名： | 王凤娥 |
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| 作者单位： | 1.国家气象局国家气象中心 |
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| 摘 要： | 本文利用1980—1987年850 hPa格点风资料和500 hPa高度场资料，分析了冬季自北半球流入南印度洋的越赤道气流的特征，指出在35°—135°E的近赤道地区冬季低空有四支源自北半球的越赤道气流，它们具有明显的年变化和年际变化；它们主要来自阿拉伯半岛—东亚地区大陆冷高压的东北季风，其强弱变化取决于东北季风的活动。
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A Study of Cross-equatorial Flow into South Indian Ocean in the Lower Troposphere During the Winter |
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| Affiliation: | (National Meteorological Center, SMA) |
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| Abstract: | The cross-equatorial flow that comes from the Northern Hemisphere into the South Indian Ocean in the lower troposphere during the winter has been investigated using grid point wind data at 850 hPa and the data geopotential height field at 500 hPa during 1980—1987. It points out that there are four channels of cross-equatorial flow coming from the Northern Hemisphere near the equatorial area from 35°E to 135°E and they are characterized by considerable annual and interannual variations. The four channels of cross-equatorial from mainly come from the northeast monsoon of continental of continental cold highs ranging from Arabian peninsula through East Asia, the intensity of flow depends on the northeast monsoon activities |
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