Impact of Arctic amplification on East Asian winter climate

摘要

1.Introduction The Arctic region warms about twice as much as the global average,and this so-called Arctic amplification(AA)might increase the moisture flux towards Siberia(Cohen et al.2014).Furthermore,because of strong radiative cooling over Siberia in winter,AA might enhance the snowfall in that region and reinforce cold spells in East Asia(Wu,Su,and Zhang 2011).Since 2000,the loss of Arctic sea ice during autumn has enhanced snowfall in Siberia during