利用Envisat数据探测中山站至Dome A条带区域冰盖高程变化

Elevation Change from Zhongshan Station to Dome A Using Envisat Data

在中山站至Dome A条带区域,利用2002-10～2007-09的Envisat RA2数据,对交叉点分析中的单一法、静态法与动态法进行了比较,结果表明:①动态参考算法优于其他两种算法;②反射能量是影响卫星测高确定冰盖高程变化的重要因素;③研究区域冰盖高程长期变化整体处于平衡,但其分布不均匀,恩德比地地区存在明显正增长,与ICESat一致。

Single, fixed and dynamic methods of crossover analysis are compared, and dynam- ic outperforms the others. The spatial distribution of elevation change from Zhongshan Sta- tion to Dome A is estimated during October 2002 to September 2007. Backscattered power is an important factor to derive elevation change. The adjusted height change over the study ar- ea is in whole balance but unevenly distributed. The positive increase is shown in Enderby Land, which agrees with ICESat.