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《Journal of Anhui Agricultural Sciences》 2007-21
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Analysis of the Precipitation Variation Characteristics and its Abrupt Change in Eastern Qinghai

LIU Cai-hong et al(Jiangsu Province key Laboratory of Meteorological Disaster and Environmental Variation in Nanjing University of Information Science and Technology,Nanjing,Jiangsu 210044)  
Monthly precipitation data of 12 stations in eastern Qinghai from 1961 to 2004 were analyzed.The results indicated that the trend of summer precipitation was invariable change.There was relevant variation of summer precipitation in time in 10 years' period or less and the period of 8-10 years was very significant.From the large time scale of equal to or more than 10 years,the period of 17 years was very clear.The abrupt change was detected in eastern Qinghai in 1970 and 1999 separately.
【CateGory Index】: S161.6
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