| 1991年江淮早梅及其与过赤道气流异常的关系 |
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| 引用本文： | 陈凤贵,杨信杰.1991年江淮早梅及其与过赤道气流异常的关系[J].热带气象学报,1993,9(3):283-288. |
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| 作者姓名： | 陈凤贵 杨信杰 |
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| 作者单位： | 南京空军气象学院 南京211101
(陈凤贵)，南京空军气象学院 南京211101(杨信杰) |
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| 摘 要： | 讨论了1991年江淮早梅现象及其形成机制。结果表明:5月第4候西太平洋副热带高压脊线出现第一次北跳,夏季风影响到江南,江淮地区入梅,比常年早二十多天;这与120—130°E间异常地出现较强的过赤道气流有关。
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| 关 键 词： | 江淮 梅雨 夏季风 气流异常 |
| 收稿时间： | 1992/10/22 0:00:00 |
| 修稿时间： | 1993/2/21 0:00:00 |
EARLY MEI-YU OVER THE JIANG-HUAI AREA IN 1991 AND ITS RELATION WITH THE ABNORMALITY OF THE CROSS EQUATORIAL CURRENT |
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| Chen Fenggui and Yang Xinjie.EARLY MEI-YU OVER THE JIANG-HUAI AREA IN 1991 AND ITS RELATION WITH THE ABNORMALITY OF THE CROSS EQUATORIAL CURRENT[J].Journal of Tropical Meteorology,1993,9(3):283-288. |
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| Authors: | Chen Fenggui and Yang Xinjie |
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| Institution: | Air Farce Institute of Meteorology, Nanjing, 211101;Air Farce Institute of Meteorology, Nanjing, 211101 |
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| Abstract: | In this paper, the phenomenon of early Mei-yu over the Jiang-huai area in 1991 and its formation mechanism have been studied. The results indicate that in the fourth pentad in May, the first northward-jumping of the west Pacific subtropical ridge occurred, and the area south of the Yangtze river valley started to be influenced by the summer monsoon. and the onset of the Mei-yu period over the Jiang-huai area was more than twenty days earlier than that of the normal years; these are related to the relatively strong cross equatorial air current which appeared abnormally between 120°E and 130°E from the second pentad to the fifth pentad in May. |
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| Keywords: | Jiang - huai mei - yu Northward - jumping of the subtropical ridge Summer monsoon Abnormal cross equatorial current |
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