| 夏季西太平洋副热带高压与山东降水的关系 |
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| 引用本文： | 高安春,申培鲁,张延龙.夏季西太平洋副热带高压与山东降水的关系[J].气象科技,2006,34(1):62-67. |
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| 作者姓名： | 高安春 申培鲁 张延龙 |
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| 作者单位： | 山东省临沂气象局,临沂,276004 |
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| 摘 要： | 在对盛夏7、8月及夏季(6~8月)平均的500 hPa高度场和同期山东降水场分别进行奇异值分解(SVD)分析的基础上,根据高度场时间系数的大小选取特征年进行高度场合成。发现夏季西太平洋副热带高压的位置、强度异常对山东夏季降水有重要影响。副高强度偏弱、位置偏北时,对应山东多雨;强度偏强、位置偏南偏西时,山东少雨。此外,南海、菲律宾等地高度场的异常与副高的位置、强度间有重要的关系。当前者处显著的正距平时,副高强度强、西伸明显;当前者处显著的负距平时,副高强度易偏弱、但位置偏北。
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| 关 键 词： | 夏季降水 西太平洋副热带高压 奇异值分解(SVD) |
| 修稿时间： | 2004年8月16日 |
Influence of Western Pacific Subtropical High on Summer Precipitation in Shandong Province |
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| Gao Anchun Shen Peilu Zhang Yanlong.Influence of Western Pacific Subtropical High on Summer Precipitation in Shandong Province[J].Meteorological Science and Technology,2006,34(1):62-67. |
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| Authors: | Gao Anchun Shen Peilu Zhang Yanlong |
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| Abstract: | Some special years were identified by using the singular value decomposition(SVD) analysis between 500 hPa height fields and Shandong precipitation in the same periods: July,August and summer,respectively.The 500 hPa height fields in special years were synthesized,and the results indicate: The unconventionality of the position and strength of the western subtropical high has an important influence on Shandong precipitation.While the western subtropical high is weaker and its position is farther northern,there is more rainfall in Shandong;and while the western subtropical high is stronger and its position is farther southern and western,there is less rainfall in Shandong.In addition,the unconventionality of the 500 hPa height field over the South China Sea and Philippines has close relation with the western subtropical high. |
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| Keywords: | summer precipitation western subtropical high SVD analysis Shandong Province |
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