| 天气与气候 |
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| Impact of Snowfall Amount and Snowfall Frequency on Sand-Dust Events in China |
| XU Xing-kui1, WANG Xiao-tao1,2, ZHOU Guang-qing1 |
| 1.International Center for Climate and Environment Sciences, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China; 2.College of Earth Science, Graduate University of the Chinese Academy of Sciences, Beijing 100049, China |
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Abstract The statistical results of meteorological data during 1970—2000 show that the sand-dust events frequency is relatively low in areas with snow cover in winter and spring in China, and the sand-dust events mainly occurs in areas with low snow coverage and snowfall amount. There is a significantly negative correlation between annual snowfall amount and sand-dust events frequency. Increase of annual snowfall amount decreases annual sand-dust events frequency obviously. Meanwhile, snowfall frequency is also an important influence factor on sand-dust events frequency. In arid regions of Northwestern China with less snowfall, especially in the northern part of Xinjiang, the frequency of sand-dust events reduces with increasing of snowfall frequency.
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Received: 05 January 2011
Published: 20 September 2011
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2011, Vol. 31 
