Irish Transverse Mercator

Irish Transverse Mercator is a map projection for Ireland, which was introduced in 2001 to replace the Irish Grid over time.

Geodetic datum ETRS89 is. As a map projection is a transverse Mercator projection is used. Its origin is located at 53 ° 30 'N, 8 ° W, ie approximately in the middle of the island. This source is a planar Cartesian coordinate system is defined. To avoid both negative coordinates as well as confusion with the Irish Grid, 600 km and to all values ​​in North direction ( " high- value") are 750 km added to all values ​​in an easterly direction ( " right value"). Coordinate information is usually in meters, so that eg of origin referred to the coordinates 600,000 750,000 receives. ( Note: for transverse Mercator coordinates of easting and then the high value is always given first, while numbers of degrees usually only the latitude and then the length is called. )