摘要
利用大地水准面逼近的严密理论M olodenskii级数解和重力归算的地形均衡理论,结合全球定位系统(G PS)、水准和重力资料在无锡确定了精度达厘米级的似大地水准面,并讨论了无锡G PS控制网的布设及数据处理。通过检核,所确定的2.5'×2.5'似大地水准面精度为2.2cm。
Combined with Global Position System (GPS), leveling and gravity data, Molodenskii's series solution and terrain isostatic theory in gravity reduction are used to determine the quasi-geoid with centimeter level accuracy in Wuxi city in the paper, and Wuxi GPS control network and data process method are discussed. The accuracy of determined quasi-geoid with 2.5'×2.5' resolution is 2.2cm by the external check.
出处
《地理空间信息》
2005年第2期1-2,5,共3页
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