Abstract:

Based on the data from Zhongshan Station and the three automatic weather stations at Antarctic ice sheet,LGB69,EAGLE and DOME-A,the characteristics of the surface wind along the track from Zhongshan Station to DOME-A are analyzed.It is found that wind speed over the deep coastal slope,which is the downstream area of the katabatic wind,is the greatest,and the further inland,the weaker the wind.Located at the highest point of Antarctic inland ice sheet,there is no katabatic wind at DOME-A.Influenced by the topography,the coastal area suffers obvious katabatic wind,with the main wind direction of NE,and most katabatic winds occurr at nights in summer.