中文摘要：

利用2002年东南极Princess Elizabeth冰盖自动气象梯度观测点获得的近地层气象资料，分析了冰盖上的感热通量、潜热通量、大气稳定度、整体输送系数及有关气象要素特征，并与中山站同期的的气象要素进行了对比分析．结果表明，由于两站的海拔高度及地理位置的差异，LGB69站的年平均气温为-25．6℃，比中山站低16．4℃，进入内陆每10km，海拔高度上升约110m，温度下降约1℃．南极内陆冰盖的湍流热通量具有明显的年变化，感热通量年平均值为-17．9W／m^2，潜热通量为-0．9W／m^2，年平均冷源强度（Qh＋Qe）为-18．8W／m^2，表明地表从大气吸收热量．LGB69站近地层大气以近中性层结为主，中性层结下的整体输送系数为2．6×10^-3，当风速大于8m／s后，整体输送系数趋于常数．LGB69站是南极地区典型下降风区，年平均风速比中山站大2．0m／s，其下降风出现的风向频和风速均大干中山站．

英文摘要：

The meteorological parameters near the surface layer from AWS on the Antarctic ice sheet in Princess Elizabeth Land East Antarctica in 2002 were used to investigate the characteristics of meteorological factors including sensible heat flux（Q h）, latent heat flux（Q e）, Richardson number（Ri）, bulk transport cofficient （Ca） ect;, and compare them with meteorological factors for the corresponding period at Zhongsban Station. It shows that the annual air temperature at LGB69 Station is -25.6 ℃ ,and 16.4℃ lower than of Zhongshan Station, because of their difference in altitude and position. The temperature lapse rate is about 1 ℃/110 m for the initial from coast to inland. The turbulence flux of Antarctic ice sheet displays an obvious seasonal variation, the average sensible heat flux is - 17. 9 W/m^2 and the average latent heat flux is -0. 9 W/m^2 ,the heat source intensity （Qh＋Qe） is -18.8 W/m^2 ,which means the surface obtains energy from atmosphere. The near surface atmosphere is controlled by nea-neutral stratifications in which bulk transport cofficient （Cd） is 2.8×10^-3 ,and it is constant when the wind speed surpass 10 m/s. There is the typical source of the katabatic wind at LGB69,where speed is 2 m/s higher than that of Zhongshan Station and higher frequency than that of Zhongshan Station.