Determination of Ningxia Quasi-Geoid and Its check
GUO Jianlin1,2, WANG Li3 (1. School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China; 2. Ningxia Bureau of Surveying and Mapping,Yinchuan 750021, China; 3. Ningxia 1st Institute of Surveying and Mapping, Yinchuan 750021, China)
This paper introduced some methods for establishing Ningxia Quasi-Geoid with GPS combination,di-scussed data processing and accuracy of Ningxia geoids, briefly described check contents.