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首页> 外文期刊>Chinese science bulletin >Influence of interannual variability of Antarctic oscillation on mei-yu along the Yangtze and Huaihe River valley and its importance to prediction
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Influence of interannual variability of Antarctic oscillation on mei-yu along the Yangtze and Huaihe River valley and its importance to prediction

机译：南极振荡年际变化对长江和淮河沿岸梅雨的影响及其预测意义

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摘要

Both correlation analysis and case study indicate that Antarctic oscillation (AAO) is closely related with summer rainfall in eastern China. When AAO is stronger in boreal spring, especially in May, there is more mei-yu rainfall in summer with a longer period along the Yangtze and Huaihe River valley. In contrast, there is less rainfall with a shorter period corresponding to a weaker AAO. Besides, an anomalous AAO changes the position and intensity of several circulation systems, which are important to summer rainfall along the Yangtze and Huaihe River valley. Furthermore, the Antarctic sea ice is negatively correlated with the intensity of AAO with a 6-month leading time. The result in this study provides a new method for the prediction of mei-yu.
机译：相关分析和案例研究均表明，南极涛动与中国东部夏季降水密切相关。当北方春季特别是五月份的AAO变强时，夏季的梅雨更多，而长江流域和淮河流域的雨季更长。相反，降雨较少，周期较短，这意味着AAO较弱。此外，异常的AAO改变了几个环流系统的位置和强度，这对于长江和淮河沿岸的夏季降雨非常重要。此外，南极海冰与AAO强度呈负相关，且提前时间为6个月。本研究结果为预测美玉提供了一种新方法。

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