爱尔兰网格参考系统

爱尔兰网格参考系统（英語：Irish grid reference system）是用于爱尔兰岛（北爱尔兰和爱尔兰共和国）纸质制图的地理网格参考系统^[1]。

网格字母

爱尔兰网格

爱尔兰领土被划分为25个方格，每个方格面积为100×100千米，用一个字母编号表记。方格编号为A至Z，省略I。其中有7个方格实际上没有覆盖爱尔兰的任何土地：A、E、K、P、U、Y和Z。

参考文献

^ How to Use Map Scales and Grids （页面存档备份，存于互联网档案馆） OSI

Leahy, Derek. Irish Grid Reference System. Ordnance Survey Ireland : 185 years of innovation in mapping. Dublin: Ordnance Survey Ireland. September 26, 2008 [14 August 2009]. （原始内容存档于September 11, 2009）.

外部链接

The Irish Grid - A Description of the Co-ordinate Reference System used in Ireland （页面存档备份，存于互联网档案馆） PDF (358kB) on the Irish Grid from OSi.
PDF (221KB) detailing GPS to Irish Grid conversions （页面存档备份，存于互联网档案馆）
A detailed (42-page) PDF file including history and map of the Irish grid and its links to Britain
A two-page article for the American Society for Photogrammetry and Remote Sensing summarising the above.
History and overview of the system, from OSI
OSI online coordinate converter tool （页面存档备份，存于互联网档案馆）
Clickable webmap that shows Irish grid references （页面存档备份，存于互联网档案馆）
LatLong <> OSi Grid Ref （页面存档备份，存于互联网档案馆） converts & presents in many formats, generates specific links to that location for several useful map web pages - 1840 - present. LatLong WSG84 <> GB, Ireland (inc NI) and Chanel Islands (30U) GR formats recognised. Distance measure for dog-leg routes & area calculations.