CAJ | 학술논문

以松原灌区GPS控制网为例，采用高程异常直接拟合和插值法，以及基于EGM2008重力场模型和移去－计算－恢复技术的残差二次曲面拟合和插值法，精化了测区大地水准面。首先简要介绍了研究区数据，进而探讨了高程异常的获取，在此基础上，详细介绍了二次曲面拟合的大地水准面精化和空间插值法大地水准面精化方法，结果表明，EGM2008重力场模型精度较高，对精化局域和国家大地水准面具有重要意义。
이송원관구GPS공제망위례，채용고정이상직접의합화삽치법，이급기우EGM2008중력장모형화이거－계산－회복기술적잔차이차곡면의합화삽치법，정화료측구대지수준면。수선간요개소료연구구수거，진이탐토료고정이상적획취，재차기출상，상세개소료이차곡면의합적대지수준면정화화공간삽치법대지수준면정화방법，결과표명，EGM2008중력장모형정도교고，대정화국역화국가대지수준면구유중요의의。
Taking the GPS network of Songyuan irrigation area, this paper refined the local geoid based on the quadratic surface fitting and spatial interpolation of height anomaly, and on the same algorithms of residuals between height anomaly and geoid undulation of EGM2008 with the remove-compute-restore method.EGM2008 has a relatively higher precision and important significance for the refinement of regional and state geoid.