The Response of East Asian Monsoon Circulation between Winter and Summer to Sea Surface Temperature over the Pacific Ocean
The Response of East Asian Monsoon Circulation between Winter and Summer to Sea Surface Temperature over the Pacific Ocean
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发表时间：
2006
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通讯作者：
Z. Qing;Wang Yuan
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作者：
Z. Qing;Wang Yuan
利用1949- 2000年NCEP/NCAR再分析资料，研究了东亚季风环流对太平洋海表温度的响应。冬夏季环流相似，冬季环流的增强，东亚季风环流在冬、夏季都与赤道太平洋步行者环流强（弱）和东亚上空Hadley环流相联系，赤道太平洋步行者环流和东亚上空Hadley环流的强度变化受海温异常变化的影响。研究表明，在LaNia（El Nio）年，东亚季风环流在冬、夏两季都有所增强（减弱），赤道东太平洋海温（SST）是东亚季风环流季节和年际变化的最重要的驱动因子。
The response of East Asia monsoon circulation between summer and winter to sea surface temperature over the Pacific Ocean is investigated using the NCEP/NCAR reanalysis dataset during 1949-2000.The study focused on the cases that the intensity of East Asian monsoon!circulation between winter and summer were similarly.It had been found out that the intensified(weakened) East Asian monsoon circulation both in winter and summer were associated to the stronger(weaker) Walker circulation in equatorial Pacific and Hadley circulation over East Asian.The variation of the intensity for Walker circulation in equatorical Pacific and the Hadley circulation over East Asian are affected by the variation of sea surface temperature anomaly(SSTA) over equatorial eastern Pacific.It had been pointed out that the East Asian monsoon circulation in both of winter and following summer became stronger(weaker) in La Nia(El Nio) years.The sea surface temperature(SST) over equatorial eastern Pacific was the most important force factor for the seasonal and annual variation of East Asian monsoon circulation.