| 太平洋海温异常对其上空环流影响的分析及数值试验 |
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| 引用本文： | 陈月娟,丁明.太平洋海温异常对其上空环流影响的分析及数值试验[J].大气科学,1992,16(5):592-600. |
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| 作者姓名： | 陈月娟 丁明 |
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| 作者单位： | 中国科学技术大学地球和空间科学系，中国科学技术大学地球和空间科学系 安徽合肥 230026，安徽合肥 230026 |
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| 摘 要： | 本文首先用《逐月全球气候资料》中的实测风资料对80年代的两次El Nino。事件(1982—1983年和1986—1987年)太平洋地区上空环流的变化情况进行了分析研究,然后用一个九层原始方程模式对其进行数值模拟试验. 观测资料分析及数值模拟结果皆表明,赤道东太平洋的这两次海温异常都使其上空的环流发生明显的变化,但由于两次海温异常的强度、范围和延续时间有所不同,对环流的影响也不相同.本文将简要地介绍这两次El Nio期间太平洋上空环流的演变特征及数值试验的结果.
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| 关 键 词： | 海温异常 环流 数值模拟 |
Influence of the Pacific sea surface temperature anomalies on the circulation and its numerical experiments |
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| Chen Yuejuan and Ding Ming.Influence of the Pacific sea surface temperature anomalies on the circulation and its numerical experiments[J].Chinese Journal of Atmospheric Sciences,1992,16(5):592-600. |
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| Authors: | Chen Yuejuan and Ding Ming |
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| Abstract: | The general circulations over the Pacific during the episodes of El Nino(1982-83, 1986-87) were analyzed with the wind data taken from Monthly Climatic Data for the World. And they were also simulated with a nine-layer primitive equation model.The results of analysis and experiments show that both periods of SST anomalies in the tropical Pacific make the circulation change apparently. However, the influences of these episodes on the Walker circulation and Hadley circulation are somewhat different because the strength, extent and the time that the SST anomalies lasted are not the same. The characteristic of the Walker circulation and Hadley circulation during the two episodes of El Nino in the eighties and the results of our simulations will be presented briefly in this paper. |
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| Keywords: | Sea surface temperature anomalies General circulation Numerical simulation |
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