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《Plateau Meteorology》 2017-05
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Progresses in Variability of Snow Cover over the Qinghai-Tibetan Plateau and Its Impact on Water Resources in China

WANG Shunjiu;Institute of Plateau Meteorology,China Meteorological Administration/Heavy Rain and Drought-Flood Disasters in Plateau and Basin Key Laboratory of Sichuan Province;  
The major advances in the researches on the variability of snowcover over the Qinghai-Tibetan Plateau( QTP) and its impact on water resources in China are summarized. Some existing problems in the related studies and the researches needing further investigation are also discussed. The distribution of the snowcover over the QTP is far from uniformity. In the peripheral high mountains snowcover distributes extensively and has a long duration,but in the vast interior it is rare or even thin. The snowcover region in the east of QTP is the most significant region of the interannual variation of snowcover on the QTP,and dominates the interannual variation of snowcover in the whole plateau. So the snowanomalies over the eastern QTP should be paid more attention. The snowcover on the QTP increased from 1960 s to 1990 s,and its extent slowly increased in summer and autumn but decreased in winter and spring in the early 21 st century. The research progresses on the impact of snowcover over the QTP on water resources are focused on precipitation and drought-flood. The abnormal snowcover over the QTP can affect the atmospheric circulation and Asian summer monsoon precipitation in terms of changing ground surface albedo,temperature and thermal conditions. The impact of abnormal snowcover over the QTP on precipitation is high consequence and wide areas. The abnormality of snowcover over the QTP has certain influences on droughts and floods of China. The snowcover abnormality could be applied in drought and flood forecast,too.
【Fund】: 国家自然科学基金项目(41375116);; 中国气象局成都高原气象研究所开放基金项目(BROP201537 BROP201443 BROP201303)
【CateGory Index】: P426.635;TV213.4
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