Contribution of South China Sea Tropical Cyclones to an Increase in Southern China  Summer Rainfall Around 1993

CHEN Jiepeng; WU Renguang; WEN Zhiping

doi:10.1007/s00376-011-1181-6

Impact Factor: 5.8

Volume 29 Issue 3

May 2012

Article Contents

Article > ADVANCES IN ATMOSPHERIC SCIENCES > 2012 > 29(3): 585-598

Contribution of South China Sea Tropical Cyclones to an Increase in Southern China Summer Rainfall Around 1993

1.
Center for Monsoon and Environment Research/Department of Atmospheric Sciences, Sun Yat-Sen University, Guangzhou 510275;Institute of Space and Earth Information Science and Department of Physics, Chinese University of Hong Kong, Shatin, Hong Kong;Center for Monsoon and Environment Research/Department of Atmospheric Sciences, Sun Yat-Sen University, Guangzhou 510275

doi: 10.1007/s00376-011-1181-6

Abstract
References
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Abstract:
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.
- South China Sea tropical cyclones,
- decadal change around 1993
References

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Manuscript History

Manuscript received: 10 May 2012

Manuscript revised: 10 May 2012

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Contribution of South China Sea Tropical Cyclones to an Increase in Southern China Summer Rainfall Around 1993

1. Center for Monsoon and Environment Research/Department of Atmospheric Sciences, Sun Yat-Sen University, Guangzhou 510275;Institute of Space and Earth Information Science and Department of Physics, Chinese University of Hong Kong, Shatin, Hong Kong;Center for Monsoon and Environment Research/Department of Atmospheric Sciences, Sun Yat-Sen University, Guangzhou 510275

Manuscript received: 2012-05-10
Manuscript revised: 2012-05-10

Abstract: 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.

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