An analysis of the changing characteristics of snowfall in the East Asia based on CMIP5
In this paper,the annual and monthly variations of snowfall in East Asia are analyzed by using snowfalls simulated with CMIP5 model and JRA-55 annual solid precipitation time sequence.It is found that there were obvious annual variation and regional distribution characteristics during the period of 1958-2004.The snowfall concentrated in the period from November to next April mainly,accounting for 82% of the annual snowfall; the annual variation showed a fluctuant increasing tendency,with different increment; spatially,snowfall concentrated in three regions:Northeast Asia,Tibetan Plateau and Xinjiang.The snowfalls simulated by six CMIP5 models had some spatial differences in the East Asia and the three sub-regions during 1850-2004.Temporally,the simulated snowfall presented an evident decreasing tendency in East Asia during the period from 1850 to 2004,with a slight decreasing tendency or an undulation in Northeast Asia and the Tibetan Plateau and an evident increasing tendency in Xinjiang.
East Asiasnowfallannual and monthly variation characteristicsCMIP5