摘要
为了解决远距离水位观测中垂直基准模型的构建问题,基于EGM 2008模型,通过“移去-拟合-恢复”技术建立了测区范围内不同基准面的大地高模型。通过实例讨论了构建深度基准面大地高模型的步骤和方法。结果表明,该模型构建方法正确,模型中误差为3 cm,能满足区域范围内水位观测的需要。
To build the vertical datum model for long-distance water level measuring,the geodetic height models corresponding to different datum levels within the range of survey area are established by using the technique of removal,interpolation and restoration based on EGM 2008 model.The steps and method for constructing geodetic height model based on depth datum are discussed by referring to some projects.The results show that the above method is correct and produces the deviation of 3 cm,which meets the needs of water level measuring.
作者
李炜
李华山
Li Wei;Li Huashan(CCCC Guangzhou Dredging Co.,Ltd.,Guangzhou Guangdong 510290,China)
出处
《港工技术》
2021年第3期112-115,共4页
Port Engineering Technology
