| 西北太平洋Ms≥7.8级强震影响我国月季降水场的过程分析 |
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| 引用本文： | 高晓清,汤懋苍,郭维栋,周长春.西北太平洋Ms≥7.8级强震影响我国月季降水场的过程分析[J].地球物理学报,2008,51(4):1022-1028. |
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| 作者姓名： | 高晓清 汤懋苍 郭维栋 周长春 |
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| 作者单位： | 1.中国科学院寒区旱区环境与工程研究所，甘肃省干旱气候与减灾重点实验室， 兰州 730000;2.兰州高原天灾预测研究所， 兰州 730000;3.中国科学院大气物理研究所东亚中心， 北京 100029;4.中国科学院研究生院， 北京 100049 |
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| 摘 要： | 地震与气候变化的关系现已成为一个研究热点.本文根据地球流体力学的长波理论，研究了强震地热涡的长波运动特性；分析了西太平洋Ms≥7.8级强震与我国月降水场的对应关系.研究结果表明,与强震相伴的地热涡尺度超过850 km时，它会向西退行，从而影响我国月季降水场的相应演变.利用上述结果，对2007年我国汛期降水分布进行了预报，实况证明此方法可行.
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| 关 键 词： | 强地震 月季降水场 气候预测 西北太平洋 |
| 收稿时间： | 2007-10-31 |
| 修稿时间： | 2008-3-5 |
Analysis of the influence of great earthquakes(Ms≥7.8) in northwest pacific ocean on the monthly-seasonal rainfall processes in China |
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| GAO Xiao-Qing,TANG Mao-Cang,GUO Wei-Dong,ZHOU Chang-Chun.Analysis of the influence of great earthquakes(Ms≥7.8) in northwest pacific ocean on the monthly-seasonal rainfall processes in China[J].Chinese Journal of Geophysics,2008,51(4):1022-1028. |
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| Authors: | GAO Xiao-Qing TANG Mao-Cang GUO Wei-Dong ZHOU Chang-Chun |
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| Institution: | 1.Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Key Laboratory of Arid Climatic Change and Disaster Reduction, Lanzhou 730000, China;2.Lanzhou Plateau Institute of Natural Disasters Prediction, Lanzhou 730000, China;3.Key Laboratory of Regional Climate-Environment Research for Temperate East Asia, Chinese Academy of Sciences, Beijing 100029, China;4.Graduate School of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | The relationship between earthquake and climatic change has become a hotspot in geosciences with the upgrading of our understanding of the earth system. Based on the long wave theory in Geophysical Fluid Dynamics, we studied the long wave features of Geothermal Vortexes accompanied by strong earthquakes, and analyzed the corresponding patterns of strong earthquakes(Ms≥7.8) in northwest Pacific ocean and the monthly precipitation fields in China. The result shows that when the scale of Geothermal Vortex accompanied by strong earthquake is larger than 850km, the Geothermal Vortex will move westward, 〖JP2〗as a result, it will have impact on the evolution of monthly-seasonal precipitation field in China. From the result above, we predicted the flood season′s precipitation in 2007 in China, the observed precipitation proved our prediction well. |
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| Keywords: | Strong earthquake Monthly-seasonal precipitation field Climate prediction Northwest Pacific ocean |
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