愛爾蘭網格參考系統
愛爾蘭網格參考系統(英語:Irish grid reference system)是用於愛爾蘭島(北愛爾蘭和愛爾蘭共和國)紙質製圖的地理網格參考系統[1]。
網格字母
愛爾蘭領土被劃分為25個方格,每個方格面積為100×100公里,用一個字母編號表記。方格編號為A至Z,省略I。其中有7個方格實際上沒有覆蓋愛爾蘭的任何土地:A、E、K、P、U、Y和Z。
參考文獻
- 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]. (原始內容存檔於September 11, 2009).
外部連結
- The Irish Grid - A Description of the Co-ordinate Reference System used in Ireland (頁面存檔備份,存於網際網路檔案館) PDF (358kB) on the Irish Grid from OSi.
- PDF (221KB) detailing GPS to Irish Grid conversions (頁面存檔備份,存於網際網路檔案館)
- 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 (頁面存檔備份,存於網際網路檔案館)
- Clickable webmap that shows Irish grid references (頁面存檔備份,存於網際網路檔案館)
- LatLong <> OSi Grid Ref (頁面存檔備份,存於網際網路檔案館) 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.