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Normalhöhennull ("standard elevation zero") or NHN is a vertical datum used in Germany. In geographical terms, NHN is the reference plane for the normal height of a topographical eminence height above mean sea level used in the 1932 German Mean Height Reference System (Deutsches Haupthöhennetz). The plane is in the shape of a quasi-geoid. The reference height is a geodetic, fixed point on the New Church of St. Alexander at Wallenhorst in the German state of Lower Saxony. The geopotential height of this point was calculated in 1986 as part of the United European Levelling Network (UELN), based on the Amsterdam Ordnance Datum.

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  • Normalhöhennull (de)
  • Normalhöhennull (en)
  • 标准高程零点 (zh)
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  • Das Normalhöhennull (NHN) ist die Bezeichnung der Bezugsfläche für die Angabe von Höhen über dem Meeresspiegel in Deutschland. Es ist seit 1993 der Nachfolger des 1879 eingeführten Normalnull (NN). (de)
  • Normalhöhennull ("standard elevation zero") or NHN is a vertical datum used in Germany. In geographical terms, NHN is the reference plane for the normal height of a topographical eminence height above mean sea level used in the 1932 German Mean Height Reference System (Deutsches Haupthöhennetz). The plane is in the shape of a quasi-geoid. The reference height is a geodetic, fixed point on the New Church of St. Alexander at Wallenhorst in the German state of Lower Saxony. The geopotential height of this point was calculated in 1986 as part of the United European Levelling Network (UELN), based on the Amsterdam Ordnance Datum. (en)
  • 标准高程零点(德语:Normalhöhennull,简称NHN)是德国使用的高程基准,取代了之前的标准零点(Normalnull)。 标准高程零点于1992年德国总高程网(Deutschen Haupthöhennetz 1992)中使用,表示高于平均海拔处的正常高的参考平面。该平面的形式为似大地水准面,参考点为德国下萨克森州瓦伦霍斯特的新圣亚历山大教堂(Neuen St.-Alexander-Kirche)上的一个固定点。该点的位势高度是于1986年作为欧洲联合水准网(United European Levelling Network,UELN)的一部分计算的,其基于代表北海平均海拔的阿姆斯特丹标准水位(Normaal Amsterdams Peil)。 使用该参考系统时高程标记为“xxx Meter über Normalhöhennull”(标准高程零点以上xxx米),简记“xxx m ü. NHN”。 (zh)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Geoidheight_DE.svg
  • http://commons.wikimedia.org/wiki/Special:FilePath/NHN_2008_Harz_6076.jpg
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  • Das Normalhöhennull (NHN) ist die Bezeichnung der Bezugsfläche für die Angabe von Höhen über dem Meeresspiegel in Deutschland. Es ist seit 1993 der Nachfolger des 1879 eingeführten Normalnull (NN). (de)
  • Normalhöhennull ("standard elevation zero") or NHN is a vertical datum used in Germany. In geographical terms, NHN is the reference plane for the normal height of a topographical eminence height above mean sea level used in the 1932 German Mean Height Reference System (Deutsches Haupthöhennetz). The plane is in the shape of a quasi-geoid. The reference height is a geodetic, fixed point on the New Church of St. Alexander at Wallenhorst in the German state of Lower Saxony. The geopotential height of this point was calculated in 1986 as part of the United European Levelling Network (UELN), based on the Amsterdam Ordnance Datum. (en)
  • 标准高程零点(德语:Normalhöhennull,简称NHN)是德国使用的高程基准,取代了之前的标准零点(Normalnull)。 标准高程零点于1992年德国总高程网(Deutschen Haupthöhennetz 1992)中使用,表示高于平均海拔处的正常高的参考平面。该平面的形式为似大地水准面,参考点为德国下萨克森州瓦伦霍斯特的新圣亚历山大教堂(Neuen St.-Alexander-Kirche)上的一个固定点。该点的位势高度是于1986年作为欧洲联合水准网(United European Levelling Network,UELN)的一部分计算的,其基于代表北海平均海拔的阿姆斯特丹标准水位(Normaal Amsterdams Peil)。 使用该参考系统时高程标记为“xxx Meter über Normalhöhennull”(标准高程零点以上xxx米),简记“xxx m ü. NHN”。 (zh)
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