Xie Shi-ji
Abstract
Ellipsoid height measured by GPS must be transformed into orthometric height so that it can be used to surveying and mapping engineering. This paper puts forward, in the point, gravimetric geoid method, geometric geoid method and synthesis method to transform ellipsoid height into orthometric height.
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Ellipsoid height measured by GPS must be transformed into orthometric height so that it can be used to surveying and mapping engineering. This paper puts forward, in the point, gravimetric geoid method, geometric geoid method and synthesis method to transform ellipsoid height into orthometric height.
Key concepts: Geoid, Undulation of the geoid, Geodesy, Global Positioning System, Dynamic height, Ellipsoid, Geodetic datum, Geography