Irish grid reference system

Geodesy
Fundamentals
Concepts
Technologies
Standards (history)
NGVD 29 Sea Level Datum 1929
OSGB36 Ordnance Survey Great Britain 1936
SK-42 Systema Koordinat 1942 goda
ED50 European Datum 1950
SAD69 South American Datum 1969
GRS 80 Geodetic Reference System 1980
ISO 6709 Geographic point coord. 1983
NAD 83 North American Datum 1983
WGS 84 World Geodetic System 1984
NAVD 88 N. American Vertical Datum 1988
ETRS89 European Terrestrial Ref. Sys. 1989
GCJ-02 Chinese obfuscated datum 2002
Geo URI Internet link to a point 2010

The Irish grid reference system is a system of geographic grid references used for paper mapping in Ireland (both Northern Ireland and the Republic of Ireland).[1] Any location in Ireland can be described in terms of its distance from the origin (0, 0), which lies off the southwest coast.[2] The Irish grid partially overlaps the British grid, and uses a similar co-ordinate system but with a meridian more suited to its westerly location.

  1. ^ How to Use Map Scales and Grids OSI
  2. ^ "A Beginners Guide to UK Geography (2023)". Open Geography Portal. Office for National Statistics. 24 August 2023. Retrieved 9 December 2023. The Irish National Grid is a common referencing format for geographic data in Ireland. It covers both Northern Ireland and Eire (the Republic of Ireland). The result is that any location in Ireland can be described in terms of its distance from the origin (0, 0), which lies off the southwest coast.