大地水准面高是从大地水准面沿法线到地球椭球体面的距离。与静止海平面重合的重力等位面称为大地水准面。大地水准面是一个与地球内部密度分布有关的不规则曲面。
讨论了表面垂直位移和重力变化对大地水准面高变化的影响。
The effects of surface vertical displacements and gravity changes upon the geoidal height variation have been also discussed.
介绍了GPS高程的应用理论，大地水准高的计算方法以及利用曲面拟合法计算大地水准面高，并对结果进行了分析，绘制出高程异常等值线图。
The paper introduces the application theory of GPS height and both the general method and the curved surface fitting method to measure geodetic height.
所采用的正常高残差拟合方法，既顾及了似大地水准面模型的几何特性，又顾及了其物理特性。
Residuals used in normal fitting method, not only takes into account the quasi-geoid model for the geometric properties, but also take into account its physical properties.
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