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Normal heights (symbol or ; SI unit metre, m) is a type of height above sea level introduced by Mikhail Molodenskii . The normal height of a point is computed as the quotient of a point's geopotential number (i.e. its geopotential difference with that of sea level), by the average, normal gravity computed along the plumb line of the point.
61 metres (200 ft) Water volume. 0.103 cubic kilometres (0.025 cu mi) Surface elevation. 103 metres (338 ft) above Normalhöhennull. Settlements. Seeland, Germany. The Concordiasee (concordia being Latin for "harmony") is an artificial lake in Saxony-Anhalt, Germany. It is located about 8 kilometres (5.0 mi) northwest of Aschersleben .
In contrast, the zero level surface of the normal heights since 1992 (DHHN92, DHHN2016) is refered to as Normalhöhennull (NHN). It is realized by quasigeoid models (DHHN92: GCG05/GCG2011, DHHN2016: GCG2016). Further information / Literature DE – Germany. Web application “Computation of quasigeoid heights with GCG2016” (in German)
In geodesy, surveying, hydrography and navigation, vertical datum or altimetric datum is a reference coordinate surface used for vertical positions, such as the elevations of Earth-bound features ( terrain, bathymetry, water level, and built structures) and altitudes of satellite orbits and in aviation . In planetary science, vertical datums ...
West Hesse Depression. Geology. Age of rock. Miocene. Mountain type. neck of an extinct volcano. Type of rock. basalt. Mader Stein, or Maderstein, is a 265 m (869 ft) ( NHN) high hill in North Hesse, Schwalm-Eder-Kreis, north-east of the village of Maden, which belongs to the town of Gudensberg .
