| 亚洲偶极子阻高与江淮梅雨 |
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| 引用本文： | 晁淑懿,王秀文,孙除荣.亚洲偶极子阻高与江淮梅雨[J].大气科学,1995,19(6):713-721. |
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| 作者姓名： | 晁淑懿 王秀文 孙除荣 |
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| 作者单位： | 国家气象中心,北京 100081 |
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| 摘 要： | 本文用１９７１—１９９１年６—７月逐日５００ hPa高度资料，计算亚洲地区（４５—７５°Ｎ、５０—１６０°Ｅ）内３个区域的阻塞指数，讨论偶极子阻高与孤立子阻高的气候特征，提出亚洲偶极子阻高是江淮梅雨期主要的西风带环流型及偶极子阻高的异常活动对１９９１年江淮特大洪水的作用；同时初步探讨偶极子阻高的垂直经向环流结构特征对江淮梅雨加强的作用。
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| 关 键 词： | 偶极子阻高 孤立子阻高 阻塞指数 垂直经向环流 |
The Modon Blocking High in Asia and Meiyu in the Yangtze-Huaihe Area |
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| Chao Shuyi,Wang Xiuwen and Sun Churong.The Modon Blocking High in Asia and Meiyu in the Yangtze-Huaihe Area[J].Chinese Journal of Atmospheric Sciences,1995,19(6):713-721. |
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| Authors: | Chao Shuyi Wang Xiuwen and Sun Churong |
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| Abstract: | This paper discusses the climatic characteristics of the modon and soliton blocking high with the blocking index counted by daily geopotential height on 500 hpa from June to July in 1971-1991 in Asia.The results show that modon block is the main circulation of westerly belt in the Meiyu seasons and that anomalous activity of the modon effect on the catastrophic flood in the Yangtze-Huaihe area in 1991.In addition, the effects of the characteristics of the meridional circulation on precipitation in the Mei-yu seasion have been preliminarily studied. |
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| Keywords: | modon blocking high soliton blocking high blocking index meridional circulation |
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