Chinese Antarctic Center of Surveying and Mapping;
Wuhan University;
Wuhan 430079;
China;
State Key Laboratory of Information Engineering in Surveying;
Mapping and Remote Sensing;
Wuhan University;
Wuhan 430079;
China;
Department of Brewing Engineering;
Moutai Institute;
Renhuai 564507;
China;
Greenland ice sheet; GPS; vertical crustal movement; tide gauge; sea level change;