南昌市似大地水准面精化建模成果验证研究

Verification Study on the Achievement of Quasi-geochemical Modeling of Nanchang City

南昌市似大地水准面精化建模项目是南昌市现代测绘基准体系建设的主要内容,它综合利用了包含空间定位、精密水准测量、精密重力测量等多种大地测量技术手段,将在技术理念、实现方式、服务领域等多个方面,促使现行测绘基准体系产生深刻变革。从南昌市似大地水准面精化模型成果的实际应用出发,对其进行了实测数据的处理分析及模型验证,结果表明,该模型完全能够在南昌市域范围内代替普通水准测量,极大地提高作业效率。

Nanchang Quasi-Geoid Refinement Modeling Project is the main content of Nanchang fidu- cial system for modem surveying. It utilizes a variety of geodetic techniques, including spatial positio- ning, precision leveling, precision gravity measurement and other technology, and will prompt the current benchmark system of surveying and mapping a profound change in the technical concept,imple- mentation, services, and other aspects. In this paper, measured data is used for analysis and model validation. The results show that the model can completely replace the ordinary level measurement in Nanchang city, and operating efficiency.