Geoidabweichungen
Geoidabweichungen, also known as geoid undulations or geoid heights, refer to the difference between the geoid and a reference ellipsoid. The geoid is an equipotential surface of the Earth's gravity field that best approximates mean sea level. In contrast, the reference ellipsoid is a simplified mathematical model of the Earth's shape, typically an oblate spheroid, used for geodetic calculations. Geoidabweichungen quantify how much the actual geoid surface deviates, both positively and negatively, from this idealized ellipsoid.
These deviations are caused by the irregular distribution of mass within the Earth, such as variations in
Understanding geoidabweichungen is crucial in various fields, including geodesy, surveying, and navigation. Precise geodetic positioning systems,