Normalnull ("standard zero") or Normal-Null (short N. N. or NN ) is an outdated official vertical datum used in Germany. Elevations using this reference system were to be marked Meter über Normal-Null (“meters above standard zero”). Normalnull has been replaced by Normalhöhennull (NHN).
Sign referring to Normal-Null
History
In 1878 reference heights were taken from the Amsterdam Ordnance Datum and transferred to the New Berlin Observatory in order to define the Normalhöhenpunkt 1879. Normalnull has been defined as a level going through an imaginary point 37.000 m below Normalhöhenpunkt 1879. When the New Berlin Observatory was demolished in 1912 the reference point was moved east to the village of Hoppegarten (now part of the town of Müncheberg, Brandenburg, Germany).[1]
References
^S. German: Was ist "Normal-Null"?. In: Physikalische Blätter 1958, vol 14, issue 2, p. 62–66 ISSN 1521-3722 doi:10.1002/phbl.19580140203
This cartography or mapping term article is a stub. You can help Wikipedia by expanding it.
lang, normalnull, normalnull, standard, zero, normal, null, short, outdated, official, vertical, datum, used, germany, elevations, using, this, reference, system, were, marked, meter, über, normal, null, meters, above, standard, zero, normalnull, been, replace. Normalnull standard zero or Normal Null short N N or NN is an outdated official vertical datum used in Germany Elevations using this reference system were to be marked Meter uber Normal Null meters above standard zero Normalnull has been replaced by Normalhohennull NHN Sign referring to Normal NullHistory EditIn 1878 reference heights were taken from the Amsterdam Ordnance Datum and transferred to the New Berlin Observatory in order to define the Normalhohenpunkt 1879 Normalnull has been defined as a level going through an imaginary point 37 000 m below Normalhohenpunkt 1879 When the New Berlin Observatory was demolished in 1912 the reference point was moved east to the village of Hoppegarten now part of the town of Muncheberg Brandenburg Germany 1 References Edit S German Was ist Normal Null In Physikalische Blatter 1958 vol 14 issue 2 p 62 66 ISSN 1521 3722 doi 10 1002 phbl 19580140203 This cartography or mapping term article is a stub You can help Wikipedia by expanding it vte Coordinates 52 30 12 N 13 23 35 E 52 5034 N 13 3930 E 52 5034 13 3930 Retrieved from https en wikipedia org w index php title Normalnull amp oldid 1121621458, wikipedia, wiki, book, books, library,
