Earlier spring in East Asia associated with Arctic Oscillation

In the present study the long-term changes of the seasonal march of overall climate variables during springtime (February-May) have been examined using historical observational data for the period 1957-2004. In association with interdecadal variation of Arctic Oscillation, the variations of surface temperature, Eurasian snowcover and large-scale circulation patterns are indicative of earlier spring over East Asia during last two decades.