jgg     2013 33 (5):  63-66    ISSN: 0412-1961  CN: 21-1139/TG COMPARISON OF INTERPOLATION METHODS IN CONSTRUCTING  ANTARCTIC ICE SHEET DEM Chinese Antarctic Center of Surveying and Mapping, Wuhan University, Wuhan〓430079 Received: 2013-02-14  Revised: null  Online: 2013-10-13 Supporting info