| 1997年中国夏季旱涝和北半球平流层平均环流分析 |
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| 引用本文： | 陈兴芳. 1997年中国夏季旱涝和北半球平流层平均环流分析[J]. 应用气象学报, 1999, 10(3): 339-346 |
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| 作者姓名： | 陈兴芳 |
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| 作者单位： | 1.国家气候中心 |
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| 基金项目： | 国家“九五”重中之重科技项目 |
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| 摘 要： | 通过分析对应我国夏季三类降水型的北半球50 hPa平均环流场特征，表明1997年我国夏季降水异常的50 hPa环流特征，主要是从冬到夏大范围高度场偏高，极地涡旋冬季弱春季强，太平洋高压冬春异常加强。
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| 关 键 词： | 夏季降水 50 hPa高度场 异常 |
Analysis of Summer Drought/flood in China and 50 hPa Mean Circulation over the Northern Hemisphere in 1997 |
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| Chen Xingfang Ai Wanxiu. Analysis of Summer Drought/flood in China and 50 hPa Mean Circulation over the Northern Hemisphere in 1997[J]. Journal of Applied Meteorological Science, 1999, 10(3): 339-346 |
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| Authors: | Chen Xingfang Ai Wanxiu |
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| Affiliation: | 1.(National Climate Center, Beijing 100081) |
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| Abstract: | Through analysing the features of 50 hPa mean circulations over the Northern Hemisphere for three summer rainfall patterns in China, it is shown that the features of 50 hPa circulation for summer precipitation anomaly over China in 1997 are mainly expressed as the higher geopotential height of large area from winter to summer, and weaker polar vortex in winter and stronger in spring, and strengthening for the Pacific high anomaly in winter and spring. |
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| Keywords: | Summer precipitation 50 hPa height field Anomaly |
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