Abstract
GPS Gravity-potential Leveling (GGL), a method of determining heights above sea level, is proposed in this paper. The method determines gravity potential and, in turn, heights above sea level of a point using GPS positioning, integrated with a geopotential model. Initial results show that the accuracy is attainable with 0.5m for the heights above MSL and with a few cm for the height differences above MSL over a distance up to several tens of kilometers. The error of geopotential modeling is the major error source of the heights above MSL, whereas the error of geodetic height difference obtained by GPS is the limiting factor on the accuracy of the normal height differences above MSL over a short distance.
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© 2009 Springer-Verlag Berlin Heidelberg
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Wei, Z. (2009). GPS Gravity-potential Leveling. In: Drewes, H. (eds) Geodetic Reference Frames. International Association of Geodesy Symposia, vol 134. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-00860-3_43
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DOI: https://doi.org/10.1007/978-3-642-00860-3_43
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