Contribution of south China Sea tropical cyclones to an increase in southern China summer rainfall around 1993
Contribution of south China Sea tropical cyclones to an increase in southern China summer rainfall around 1993
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DOI：
10.1007/s00376-011-1181-6
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发表时间：
2012-04
影响因子：
5.8
通讯作者：
Jiepeng Chen;R. Wu;Z. Wen
中科院分区：
文献类型：
--
作者：
Jiepeng Chen;R. Wu;Z. Wen
1993年前后中国南部夏季降水增多，伴随着中国南海热带气旋的增多。这项研究记录了这两个特征之间的联系。分析表明，1993年前后，形成于南中国海的热带气旋对中国南部夏季降水的贡献显著增加，特别是沿海和暴雨类。在北太平洋西部形成并进入南海中国海的热带气旋减少，对中国南部东部夏季降水的贡献减少(但统计上不显著)。热带气旋引起的降雨量的增加占沿海地区总降雨量增加的∼高达30%。中国南海热带气旋增多似乎与局地海面温度升高有关。
The increase in southern China summer rainfall around 1993 was accompanied by an increase in tropical cyclones that formed in the South China Sea. This study documents the connection of these two features. Our analysis shows that the contribution of tropical cyclones that formed in the South China Sea to southern China summer rainfall experienced a significant increase around 1993, in particular, along the coast and in the heavy rain category. The number of tropical cyclones that formed in the western North Pacific and entered the South China Sea decreased, and their contribution to summer rainfall was reduced in eastern part of southern China (but statistically insignificant). The increase in tropical cyclone-induced rainfall contributed up to ∼30% of the total rainfall increase along the coastal regions. The increase of tropical cyclones in the South China Sea appears to be related to an increase in local sea surface temperature.