Resources Science ›› 2015, Vol. 37 ›› Issue (9): 1765-1773.

• Orginal Article • Previous Articles     Next Articles

Snowfall change characteristics in China from 1961 to 2012

ZHANG Zhifu1(), XI Shuang2, LIU Na1, YU Yu1, FAN Shaohua1, FENG Mingnong1   

  1. 1. National Meteorological Information Center,Beijing 100081,China
    2. National Satellite Meteorological Center,Beijing 100081,China
  • Received:2015-01-16 Revised:2015-05-13 Online:2015-09-25 Published:2015-09-25

Abstract:

The paper studies snowfall change characteristics in China using the relative index of snowfall from 1961 to 2012,based on daily precipitation and human observed weather phenomenon from 1400 stations. Results indicate that the distribution of snowfall is inhomogeneous spatially. The maximum snowfall season range,snowfall value and snowfall days were north of Sinkiang,northeast China and the Tibetan Plateau,respectively. The snowfall value of heavy snow is the chief class in Central China,and the snowfall value of light snow is the chief class in other regions. Snowfall days for light snow is the chief class in all five regions;it is 65% in the Central China and about 84% in other region. The snowfall season range is decreasing in all five regions,the snowfall season end date has evidently moved up in the Tibetan Plateau,North China Plain and Central China;the snowfall season origin date has been delayed north of Sinkiang. Changes are not evident in northeast China. In the time series trend analysis,the snowfall value and snowfall days are increasing north of Sinkiang because,its great snow is increasing. Snowfall days and snowfall value have no evident trend in the northeast of China. In the other regions,the snowfall value and snowfall days are decreasing;heavy snow and light snow are decreasing on the Tibetan Plateau; light snow is decreasing on the North China Plain;and great snow and light snow are decreasing in Central China.

Key words: snowfall season range, snowfall value, snowfall days, trend analysis