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Abstract:
Day-to-day precipitation data of Junes during the 43 years of 1958-2000 from stations to the south of Yangtze River are used to divide regions and run statistical analysis of sustained torrential rainfall processes. A preliminary analysis is then made based on it and the results show that June is the month in which torrential rains in the southern half of China take place frequently and sustained torrential rains occur at the same time in South China and the area to the south of Yangtze River. In addition, the analysis gives the basic features of sustained torrential rains of June in China and their interannual variability patterns, with the suggestion that the amount of these events increases significantly after the 1990s. Lastly, the sustained torrential rains occurring in Junes of 1994, 1998 and 2005 in the southern half of China are taken as examples in the research on the basic patterns and formation mechanisms of the evolution of double rain-bands during the rain season in South China and the area to the south of Yangtze River. The analysis shows that the large scale environment field in which sustained torrential rains occur is related to the stable sustaining of the South Asia High and upper level jet streams.
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References
|
[1]
|
YANG Jing, WANG Peng-yun, LI Xing-rong. Meso-scalesimulation of cloud and precipitation physical processes inMei-yu front system in June 1999 [J]. J. Trop. Meteor., 2003,19(2): 203-212. |
|
[2]
|
DING Yi-hui. Advanced Synoptics [M]. Beijing:Meteorological Press, 2005: 309-452. |
|
[3]
|
ZHANG Yan, DING Yi-hui, MA Qiang. Analysis of theatmospheric circulation in relation to persistent rain storm onthe Meiyu front [J]. Cli. Envir. Res., 1997, 5(26): 162-167. |
|
[4]
|
WEN Li-juan, CHENG Lin-sheng, ZUO Hong-chao, et al.Diagnostic analysis of moist potential vorticity anomaly duringthe May 1998 heavy rainfall of South China in the floodseason [J]. J. Trop. Meteor., 2006, 22(5): 447-453. |
|
[5]
|
CHENG Mi-fang. Analysis of the characteristics ofsustained heavy rains over Yangtze and Han Jiang Riversbasins in June 1999 [J]. Hubei Meteor., 2001(1): 11-12. |
|
[6]
|
CHEN Xing-fang. The anomaly change of subtropical highand its formation cause in west Pacific [J]. Meteor. Mon.,1995, 21(12): 3-7. |
|
[7]
|
CHEN Zhi-qiang, DAI Xin-fu, LIANG Xu-dong. APersisting Heavy Rain Process in Shanghai in 1999 [J]. Meteor.Mon., 2000, 26(9): 24-28. |
|
[8]
|
YAN Jing-hua, XUE Ji-shan. Numerical simulation andanalysis on the structure of a rain-storm system [J]. J. Trop.Meteor., 2002, 18(4): 302-308. |
|
[9]
|
WANG Xing-rong, ZHENG Yuan-yuan, GAO Shao-ting, etal. Possible premonitory characters of Doppler radar productand cloud chart for the mid-latitude sudden heavy rain [J]. J.Trop. Meteor., 2006, 22(6): 612-617. |
|
[10]
|
TAO Shi-yan. Torrential Rains in China [M]. Beijing:Meteorological Press, 1980. |
|
[11]
|
BAO Ming. The Statistical analysis of the persistentheavy rain in the last 50 years over China and theirbackgrounds on the large scale circulation [J]. Chinese J.Atmos. Scis, 2007, 31(6): 779-792. |
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