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Geodætisk Institut (1928–1987) was a Danish state-run cartographic institute.
It was created by law number 82, of 31 March 1928, combining Generalstabens Topografiske Afdeling and Den danske Gradmaaling, two institutions that did somewhat overlapping cartographic and
Geodætisk Institut (1928–1987) was a Danish state-run cartographic institute.
It was created by law number 82, of 31 March 1928, combining Generalstabens Topografiske Afdeling and Den danske Gradmaaling, two institutions that did somewhat overlapping cartographic and topographic
Topography is the study of the forms and features of land surfaces. The topography of an area may refer to the landforms and features themselves, or a description or depiction in maps.
Topography is a field of geoscience and planetary scienc ...
mapping of Denmark. It was initially part of Ministry of War (Krigsministeret), later Ministry of Defence
A ministry of defence or defense (see American and British English spelling differences#-ce.2C -se, spelling differences), also known as a department of defence or defense, is the part of a government responsible for matters of defence and Mi ...
(Forsvarsministeret).
In the years 1940–1953 ''Geodætisk Institut'' made the second nationwide precision landscape levelling of Denmark. The first was done 1885–1905 by ''Den danske Gradmaaling''. The height fix point remains Århus Domkirke ( 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 (or airborne imagery) is the taking of photographs from an aircraft or other flight, airborne platforms. When taking motion pictures, it is also known as aerial videography.
Platforms for aerial photography include fixed-wi ...
(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/ED50
ED50 ("European Datum 1950", EPSG:4230) is a geodetic datum which was defined after World War II for the international connection of geodetic networks.
Background
Some of the important battles of World War II were fought on the borders of Ger ...
map projections, where Denmark is located in zone 32 and 33. This work was finished in 1975.
The institute developed the computer GIER ()) which was a step towards the establishment of a Danish computer industry.
In 1989, ''Geodætisk Institut'' was combined with Matrikeldirektoratet and Søkortarkivet, to form Kort & Matrikelstyrelsen (now ).
Geodætisk Institut departments
* Administrativ Afdeling * Geodætisk Afdeling I * Geodætisk Afdeling II * Seismisk Afdeling * Topografisk Afdeling * Teknisk AfdelingReferences
{{DEFAULTSORT:Geodaetisk Institut Government agencies of Denmark National mapping agencies