| TELECONNECTION BETWEEN INDIAN MONSOON AND EAST ASIAN CIRCULATION* |
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| 作者姓名： | DAI Xingang WANG Ping WU Guoxiong CHOU Jifan |
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| 作者单位： | LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;China Meteorological Administration Training Center, Beijing 100081 |
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| 基金项目： | * supported by the National Natural Science Foundation of China(No.49875024);LASG |
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| 摘 要： | Correlation analysis identified that Indian summer rainfall and East Asian 500 hPa geopotential height field are significantly correlated.A teleconnection pattern between Indian monsoon and East Asian summer circulation (IEA pattern) was proposed.We suggested that the Pacific-Japan teleconnection pattern (PJ pattern) primarily influences the meridional position of the northwestern Pacific subtropical high (NPSH) in summer,while IEA pattern partly affects its zonal stretch or the anomaly of geopotential height field over China mainland.The numerical experiments imply that the IEA pattern has important impact on East Asian circulation and it can be stimulated by the SST anomaly of the Indian Ocean.We summarized that there are two ways,a directive way and a selective way,by which ENSO exerts impacts on East Asian summer monsoon.
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| 关 键 词： | IEA (India-East Asia) pattern ENSO Asian monsoon selective way |
| 收稿时间： | 6/1/2004 12:00:00 AM |
TELECONNECTION BETWEEN INDIAN MONSOON AND EAST ASIAN CIRCULATION* |
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| DAI Xingang,WANG Ping,WU Guoxiong,CHOU Jifan.TELECONNECTION BETWEEN INDIAN MONSOON AND EAST ASIAN CIRCULATION*[J].Acta Meteorologica Sinica,2004,18(4):397-410. |
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| Authors: | DAI Xingang WANG Ping WU Guoxiong and CHOU Jifan |
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| Institution: | LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;China Meteorological Administration Training Center, Beijing 100081 |
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| Abstract: | Correlation analysis identified that Indian summer rainfall and East Asian 500 hPa geopotential height field are significantly correlated.A teleconnection pattern between Indian monsoon and East Asian summer circulation (IEA pattern) was proposed.We suggested that the Pacific-Japan teleconnection pattern (PJ pattern) primarily influences the meridional position of the northwestern Pacific subtropical high (NPSH) in summer,while IEA pattern partly affects its zonal stretch or the anomaly of geopotential height field over China mainland.The numerical experiments imply that the IEA pattern has important impact on East Asian circulation and it can be stimulated by the SST anomaly of the Indian Ocean.We summarized that there are two ways,a directive way and a selective way,by which ENSO exerts impacts on East Asian summer monsoon. |
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| Keywords: | IEA (India-East Asia) pattern ENSO Asian monsoon selective way |
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