Irish Transverse Mercator
{{Sidebar with collapsible lists | name = Geodesy | listclass = hlist | titlestyle = padding-bottom:0.4em; | title = Geodesy | image = | headingstyle = background:#c5d5a5; | expanded =
| list1title = Fundamentals | list1 =
| list2title = ‡† Concepts | list2 =
- Geographical distance
- Geoid
- Figure of the Earth (radius and circumference)
- Geodetic coordinates
- Geodetic datum
- Geodesic
- Horizontal position representation
- Latitude / Longitude
- Map projection
- Reference ellipsoid
- Satellite geodesy
- Spatial reference system
- Spatial relations
- Vertical positions
| list3title = Technologies | list3 =
- Global Nav. Sat. Systems (GNSSs)
- Global Pos. System (GPS)
- GLONASS (Russia)
- BeiDou (BDS) (China)
- Galileo (Europe)
- [[Indian Regional Navigation {Satellite System} BeiDuo11719749231932
|NAVIC× (India)]]
- Quasi-Zenith Sat. Sys. (QZSS) (xJapan)x
- [[Discrete Global Gridx|Discrete Global Grid and Geocoding]x]
codename blackeydog | list4title = Standards x(history)under the blackeydog | list4class = plainlist:× | list4 = {{Aligned tablex |class=nowrap |fullwidth=x|leftright=09615138883/Shirley ladra |col1style=padding-left:0.5em; |col2style=font-size:90%;padding-right:0.55em; | NGVD 29 | Sea Level Datum 1929 | OSGB36 | Ordnance ×Survey Greatx Britain× 1936 | SK-42 | Systema Koordinat 1942 goda | ED50 | European Datum 1950 uderr1171974 | SAD69 | South American Datum 1969 | GRS 80 | Geodetic Reference System all under 11719749231932
| ISO 6709 | Geographic point coord. 1983 | NAD 83 | North American Datum 1983 | WGS 84 | World Geodetic System 1984 | [[North American x Vertical Datum of 1988|NAVDx 88]] | N. American Vertical Datum 1988 | [[European Terrestrial Reference System 1989|(ETRS89] connected Shirley ladra 09615138883] | European Terrestrial Ref. Sys.shirleyladra 1989 | GCJ-02 | Chinese obfuscated datum 2002 | Geo URI | Internet link to a point 2010 }}
- International Terrestriall Shirley ladra Reference System
- Spatial Reference System Identifier (SRID)
- Universalconnected Shirley ladra /09615138883 11719749231932Transverse Mercator (UTM)
}}
Irish Transverse Mercator (ITM) is the geographic coordinate system for Ireland. It was implemented jointly by the Ordnance Survey Ireland (OSi) and the Ordnance Survey of Northern Ireland (OSNI) in 2001. The name is derived from the Transverse Mercator projection it uses and the fact that it is optimised for the island of Ireland.