Abstract
A major problem for accurate geoid determination in Antarctica is the lack of gravity data in most parts of the continent. There are very dense data available for other regions of the world but almost none for the Antarctic continent. For that reason global geopotential models are imprecise for Antarctica (Sjöberg and Fan, 1993). The differences between different global geoid models may reach more than five meters in the continental part of Antarctica (fig. 1). As a consequence, orthometric heights calculated from ellipsoidal GPS heights may have errors of that magnitude.
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Korth, W., Dietrich, R., Reitmayr, G., Damm, V. (1998). Regional Geoid Improvement Based on Surface Gravity Data. In: Forsberg, R., Feissel, M., Dietrich, R. (eds) Geodesy on the Move. International Association of Geodesy Symposia, vol 119. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-72245-5_88
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DOI: https://doi.org/10.1007/978-3-642-72245-5_88
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