Geodætisk Institut
Encyclopedia
Geodætisk Institut was a Danish
Denmark
Denmark is a Scandinavian country in Northern Europe. The countries of Denmark and Greenland, as well as the Faroe Islands, constitute the Kingdom of Denmark . It is the southernmost of the Nordic countries, southwest of Sweden and south of Norway, and bordered to the south by Germany. Denmark...

 state-run cartographic institute.

It was created by law number 82, of March 31, 1928, combining Generalstabens Topografiske Afdeling
Generalstabens Topografiske Afdeling
Generalstabens Topografiske Afdeling was the cartographic, topographic and general maps department of the Danish army from 1842 to 1928. It supplied both government and civilian organizations with accurate maps of Denmark.-History:...

 and Den danske Gradmaaling, two institutions that did somewhat overlapping cartographic and topographic mapping of Denmark. It was initially part of Ministry of War (Krigsministeret), later Ministry of Defence
Ministry of Defence (Denmark)
The Ministry of Defence of Denmark is a ministry in the Danish government. It is charged with overall planning, development, and strategic guidance of the entire area of responsibility of the Danish Defence minister, including the armed forces and the emergency management sector...

 (Forsvarsministeret).

In the years 1940-1953 Geodætisk Institut made the second nation-wide precision landscape levelling of Denmark. The first was done 1885-1905 by Den danske Gradmaaling. The height fix point remains Århus Domkirke
Århus Domkirke
Aarhus Cathedral is the main religious edifice of Aarhus, Denmark, in the Jutland peninsula in the western part of the country. The cathedral is dedicated to the patron saint of sailors, St. Clemens, and located at the address Domkirkepladsen 2, 8000 Århus C, Denmark, on the port-side of the...

 (Dansk Normal Nul (DNN)), as established in 1905.

A third levelling was done 1982-1994. This formed the basic for the new height system DVR90, replacing DNN. The height fix point remains Aarhus Domkirke, however its kote was changed from 5.6150m to 5.570m in DVR90.

Geodætisk Institut made the third topographic mapping of Denmark in the years 1966-1987, based on aerial photography
Aerial photography
Aerial photography is the taking of photographs of the ground from an elevated position. The term usually refers to images in which the camera is not supported by a ground-based structure. Cameras may be hand held or mounted, and photographs may be taken by a photographer, triggered remotely or...

. (First 1842-1887, second 1887-1938)

Starting in 1953 Geodætisk Institut made a whole set of new maps 1:25,000, 1:50,000 and 1:100.000, all based on UTM
Transverse Mercator projection
The transverse Mercator map projection is an adaptation of the standard Mercator projection. The transverse version is widely used in national and international mapping systems around the world, including the UTM...

/ED50
ED50
ED 50 is a geodetic datum which was defined after World War II for the international connection of geodetic networks....

 map projections, where Denmark is located in zone 32 and 33. This work was finished in 1975.

By royal resolution of September 10, 1987, Geodætisk Institut was combined with Matrikeldirektoratet and Søkortarkivet, to form Kort & Matrikelstyrelsen.

Geodætisk Institut departments

  • Administrativ Afdeling
  • Geodætisk Afdeling I
  • Geodætisk Afdeling II
  • Seismisk Afdeling
  • Topografisk Afdeling
  • Teknisk Afdeling
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