| 热带太平洋10月份海气联合复EOF分析 |
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| 引用本文： | 卢姁,张东凌.热带太平洋10月份海气联合复EOF分析[J].海洋通报,2009,28(5). |
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| 作者姓名： | 卢姁 张东凌 |
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| 作者单位： | 1. 中国人民解放军理工大学,气象学院,大气环流与短期气候预测研究室,江苏,南京,211101;中国人民解放军61741部队,北京,100081
2. 中国科学院大气物理研究所,国际气候与环境科学中心,北京,100029 |
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| 基金项目： | 国家“973”项目-北太平洋副热带环流变异对大气强迫的反馈作用(2007CB411805) |
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| 摘 要： | 利用复EOF分析,将热带太平洋10月份的大气环流风场和大洋上层环流场作为一个整体,对其作了动力统计诊断,用以考察热带太平洋10月份大气大洋耦合环流的年际和年代际变化,并揭示其与厄尔尼诺和南方涛动(ENSO)的关系。结果表明:在同一模态中,海洋模态表现出很强的赤道陷度特征,而大气风场则无此现象;第一模态与ENSO循环有密切关系,揭示了Walker环流异常;第一模态的垂直运动风场反映了热带太平洋赤道辐合带和南太平洋辐合带上垂直运动的异常;第二模态偏差风场的经向分量大于第一模态,反映了Hadley环流的异常;第二模态与ENSO循环有联系,但关系不如第一模态那样密切。
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| 关 键 词： | 海气联合 动力统计诊断 热带太平洋 ENSO 复EOF分析 |
CEOF analysis for coupled circulation of atmosphere and ocean of Tropical Pacific Ocean in October |
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| LU Xu,ZHANG Dong-ling.CEOF analysis for coupled circulation of atmosphere and ocean of Tropical Pacific Ocean in October[J].Marine Science Bulletin,2009,28(5). |
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| Authors: | LU Xu ZHANG Dong-ling |
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| Institution: | 1.Laboratory of Atmosphere Circulation and Short-term Climate Prediction;Institute of Meteorological;PLA Univ.of Sci.&Tech.;Nanjing 211101;China;2.61741 Troops of PLA;Beijing 100081;China 3.International Centre for Climate and Environment Sciences;Institute of Atmospheric Physics;Chinese Academy of Sciences;Beijing 100029;China |
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| Abstract: | In this paper, using CEOF analysis, the dynamic statistic diagnosis of the circulation of atmosphere and ocean of tropical Pacific Ocean in October regarded as a whole is done, where through which inter-decadal and decadal variations of the coupled circulation are discussed and the relationship of ENSO is discovered.The results show that in the same mode, the deviation current of ocean is captured by equator, but wind field has no such phenomena;the first mode has close relation with ENSO, the atmosphere fi... |
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| Keywords: | coupled circulation of atmosphere and ocean dynamic statistic diagnosis Tropical Pacific Ocean ENSO CEOF |
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