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《Plateau Meteorology》 2003-04
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A Study on Convective Characteristics and Formation Mechanism of Precipitation over Upper Reaches of Yellow River

ZHAO Shi\|xiong1,DELI Geer1,TU Duo\|bin2(1. Qinghai Province Artificial Modification Office, Xining 810001, China; 2. Chinese Academyof Meteorological Sciences, Beijing100081, China)  
The generality and particularity of convective function for rainfall in each kind of clouds were further explained using the radar echo data, surface observation data and rain particle spectrums data over the upper reach area of Yellow River from June to september 1997\_2000. Through the case study of rain particle spectrum evolution, we preliminary infer that the microphysical processes of rainfall in cloud probably have two formation mechanisms of warm rain and cold rain, but the warm rain mechanism play an important part in precipitation development of cloud. The above\|mentioned facts may be the important reason of frequent rainfall in Qinghai\|Xizang Plateau
【Fund】: 国家气象局课题资助
【CateGory Index】: P461.5
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