| 用大气热源表征的东亚夏季风指数的研究 |
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| 引用本文： | 陈中钰,巩远发,赵蕾.用大气热源表征的东亚夏季风指数的研究[J].成都信息工程学院学报,2010,25(3):275-280. |
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| 作者姓名： | 陈中钰 巩远发 赵蕾 |
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| 作者单位： | 成都信息工程学院大气科学学院,四川,成都,610225 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 利用1965—2007年NCEP／NCAR再分析资料和同期的中国160站降水资料，在讨论大气热源的气候特征基础上，用整层积分的大气热源定义了一个东亚夏季风指数，并用该指数研究了东亚夏季风和中国气候的关系。研究表明：定义的大气热源季风指数能反映夏季风的异常变化，高（低）指数年对应的东亚夏季风偏强（弱）；该指数与长江中下游降水存在高度的同期负相关，对长江中下游夏季降水有较强的分辨能力。
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| 关 键 词： | 气象学 东亚夏季风 大气热源 季风指数 长江中下游 降水 季风槽 |
An East Asian Summer Monsoon Index Defined by Atmospheric Heating Source |
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| CHEN Zhong-yu,GONG Yua-fa,ZHAO Lei.An East Asian Summer Monsoon Index Defined by Atmospheric Heating Source[J].Journal of Chengdu University of Information Technology,2010,25(3):275-280. |
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| Authors: | CHEN Zhong-yu GONG Yua-fa ZHAO Lei |
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| Institution: | (School of Atmospheric Science, CUIT, Chengdu 610225, China) |
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| Abstract: | Using NCEP/NCAR reanalysis data and 160 stations rainfall data in China from 1965 -2007, a East Asian summer monsoon index is defined by atmospheric heating source of the total atmosphere based on the discussion about climate characteristics of atmospheric heating source, and discusses the relationship between East Asian summer monsoon and China climate with the index. Results show that the summer monsoon index defined by atmospheric heating source can be used to describe the intensity of the summer monsoon. High （low） index is related to strong （weak） East Asian summer monsoon. And the new index is well related to the summer rainfall over the middle and lower reaches of the Yangtze River. |
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| Keywords: | meteorology East Asian monsoon atmospheric heating source monsoon index middle and lower reaches of the Yangtze River precipitation monsoon trough |
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