Abstract: Single, fixed and dynamic methods of crossover analysis are compared, and dynamic outperforms the others. The spatial distribution of elevation change from Zhongshan Station 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 area is in whole balance but unevenly distributed. The positive increase is shown in Enderby Land, which agrees with ICESat.