| A numerical study of the impact of SST anomaly in the warm pool area on atmospheric circulation in winter |
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| 作者姓名： | Dong Min Chen Longxun Liao Hong |
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| 作者单位： | Chinese Academy of Meteorological Science, Beijing 100081, China;Chinese Academy of Meteorological Science, Beijing 100081, China;Chinese Academy of Meteorological Science, Beijing 100081, China |
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| 基金项目： | The project supported by NSFC. |
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| 摘 要： | In this paper the impacts of the anomalous SST in the warm pool area of the Western Equatorial Pacific on the winter time circulation and the East Asian monsoon are studied by using the NCAR CCM. It is found that the abnormal heating in the warm pool area will change the strength and the position of the Walker Cell in the Equatorial Pacific and the anti-Walker Cell in the equatorial Indian Ocean. Both the Walker and anti-Walker Cells are strengthened. The local Hadley Cells over two hemispheres near the warm pool are also strengthened. The subtropical highs in two hemispheres become stronger and move poleward slightly. The westerly jets in the extratropical regions have similar changes as the subtropical highs. The winter monsoon in South-East Asia is weakened by the abnormal heating in the warm pool. The experiment also show that there are wave trains emanating from surrounding areas of the warm pool to the high latitudes, causing various changes in circulations and local weather.
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| 收稿时间： | 1990/3/10 0:00:00 |
| 修稿时间： | 1992/3/18 0:00:00 |
A numerical study of the impact of SST anomaly in the warm pool area on atmospheric circulation in winter |
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| Dong Min,Chen Longxun,Liao Hong.A numerical study of the impact of SST anomaly in the warm pool area on atmospheric circulation in winter[J].Acta Oceanologica Sinica,1992,11(4):559-572. |
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| Authors: | Dong Min Chen Longxun and Liao Hong |
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| Institution: | Chinese Academy of Meteorological Science, Beijing 100081, China |
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| Abstract: | In this paper the impacts of the anomalous SST in the warm pool area of the Western Equatorial Pacific on the winter time circulation and the East Asian monsoon are studied by using the NCAR CCM. It is found that the abnormal heating in the warm pool area will change the strength and the position of the Walker Cell in the Equatorial Pacific and the anti-Walker Cell in the equatorial Indian Ocean. Both the Walker and anti-Walker Cells are strengthened. The local Hadley Cells over two hemispheres near the warm pool are also strengthened. The subtropical highs in two hemispheres become stronger and move poleward slightly. The westerly jets in the extratropical regions have similar changes as the subtropical highs. The winter monsoon in South-East Asia is weakened by the abnormal heating in the warm pool. The experiment also show that there are wave trains emanating from surrounding areas of the warm pool to the high latitudes, causing various changes in circulations and local weather. |
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