jgg     2015 35 (3):  449-452    ISSN: 0412-1961  CN: 21-1139/TG Elevation Changes of Antarctic Ice Sheet Derived from  Satellite Laser Altimetry 1 State Key Laboratory of Geodesy and Earth’s Dynamics, Institute of Geodesy and Geophysics,  CAS, 340 Xudong Street, Wuhan 430077,China 2 Key Laboratory of Geo-Informatics of NASMG，28 West-Lianhuachi Road, Beijing  100860,China 3 Key Laboratory for Polar Surveying and Mapping Science of NASMG, 129 Luoyu Road, Wuhan 430079,China 4 University of Chinese Academy of Sciences, A19 Yuquan Road, Beijing 100049,China Received: 2014-05-13  Revised: null  Online: 2015-06-02 Supporting info