Gauss-Krüger coordinate system

In cartography, the term Gauss-Krüger, named after Carl Friedrich Gauss and Johann Heinrich Louis Krüger, is used in three slightly different ways.
* Often, it is just a synonym for the transverse Mercator map projection. Another synonym is "Gauss conformal projection".
* Sometimes, the term is used for a particular computational method for transverse Mercator: that is, how to convert between latitude/longitude and projected coordinates. There is no simple closed formula to do so when the earth is modelled as an ellipsoid. But the "Gauss-Krüger" method gives the same results as other methods, at least if you are sufficiently near the central meridian: less than 10 degrees of longitude, say. Farther away, some methods become inaccurate.
* The term is also used for a particular set of Transverse Mercator projections used in narrow zones in Europe and South America, at least in Germany, Austria, Finland and Argentina. This "Gauss-Krüger" system is similar to the universal transverse Mercator system, but the central meridians of the Gauss-Krüger zones are only 3° apart, as opposed to 6° in UTM. As a consequence, the scale variation within a Gauss-Krüger zone is about 1/4 of what it is in a UTM zone. More information on this system can be found on the German Wikipedia.

Wikimedia Foundation. 2010.

### Look at other dictionaries:

• List of topics named after Carl Friedrich Gauss — Carl Friedrich Gauss (1777 ndash; 1855) is the eponym of all of the topics listed below. Topics including Gauss *Carl Friedrich Gauss Prize, a mathematics award *Degaussing, to demagnetize an object *Gauss (unit), a unit of magnetic field (B)… …   Wikipedia

• Helmert transformation — The Helmert transformation (named after Friedrich Robert Helmert, 1843 ndash;1917; also called a seven parameter transformation) is a transformation method within a three dimensional space. It is frequently used in geodesy to produce distortion… …   Wikipedia

• Abkürzungen/Luftfahrt/E–K — Dies ist der dritte Teil der Liste Abkürzungen/Luftfahrt. Liste der Abkürzungen Teil 1 A A Teil 2 B–D B; C; D Teil 3 E K E …   Deutsch Wikipedia

• Bessel ellipsoid — The Bessel ellipsoid (or Bessel 1841) is an important reference ellipsoid of geodesy. It is currently used by several national surveys of Europe and on other continents, but will be replaced in the next decades by modern ellipsoids of satellite… …   Wikipedia

• nature, philosophy of — Introduction       the discipline that investigates substantive issues regarding the actual features of nature as a reality. The discussion here is divided into two parts: the philosophy of physics and the philosophy of biology.       In this… …   Universalium

• Transverse Mercator projection — The transverse Mercator projection is an adaptation of the Mercator projection. Both projections are cylindrical and conformal. However, in the transverse Mercator, the cylinder is rotated 90° (transverse) relative to the equator so that the… …   Wikipedia

• Meridian arc — In geodesy, a meridian arc measurement is a highly accurate determination of the distance between two points with the same longitude. Two or more such determinations at different locations then specify the shape of the reference ellipsoid which… …   Wikipedia