Irish Transverse Mercator
E411950
Irish Transverse Mercator is a modern, high-precision map projection and coordinate reference system used for surveying and mapping across Ireland.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Irish Transverse Mercator canonical | 4 |
| Irish Transverse Mercator (approximate) | 1 |
| Irish Transverse Mercator coordinate system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4073249 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Irish Transverse Mercator Context triple: [Irish grid reference system, replacedBy, Irish Transverse Mercator]
-
A.
Trafoi
Trafoi is a small alpine village in South Tyrol, northern Italy, known for its scenic location in the Stelvio National Park and as a base for exploring the surrounding mountains.
-
B.
Forristal
Forristal is a surname of Irish origin borne by various individuals, including those in the arts and public life.
-
C.
Geithain
Geithain is a small town in the German state of Saxony, known for its historic center and regional rail connections.
-
D.
Irish gauge
Irish gauge is a broad railway track gauge of 5 ft 3 in (1,600 mm) widely used on railways in Ireland and parts of Australia and Brazil.
-
E.
Munster
Munster is a small town in the Grand Est region of northeastern France, known for its namesake strong-smelling cheese and picturesque setting in the Vosges mountains.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Irish Transverse Mercator Target entity description: Irish Transverse Mercator is a modern, high-precision map projection and coordinate reference system used for surveying and mapping across Ireland.
-
A.
Trafoi
Trafoi is a small alpine village in South Tyrol, northern Italy, known for its scenic location in the Stelvio National Park and as a base for exploring the surrounding mountains.
-
B.
Forristal
Forristal is a surname of Irish origin borne by various individuals, including those in the arts and public life.
-
C.
Geithain
Geithain is a small town in the German state of Saxony, known for its historic center and regional rail connections.
-
D.
Irish gauge
Irish gauge is a broad railway track gauge of 5 ft 3 in (1,600 mm) widely used on railways in Ireland and parts of Australia and Brazil.
-
E.
Munster
Munster is a small town in the Grand Est region of northeastern France, known for its namesake strong-smelling cheese and picturesque setting in the Vosges mountains.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
coordinate reference system
ⓘ
map projection ⓘ national grid system ⓘ |
| accuracyClass | high-precision geospatial framework ⓘ |
| appliesToTerritory |
Northern Ireland
ⓘ
Republic of Ireland ⓘ |
| axisUnit | metre ⓘ |
| belongsToCategory |
Irish geodetic systems
ⓘ
Transverse Mercator projections ⓘ national coordinate systems ⓘ |
| coordinateAxes |
easting
ⓘ
northing ⓘ |
| coordinateReferenceFrame | Earth-fixed reference frame ⓘ |
| coordinateSystemType | projected coordinate system ⓘ |
| country | Ireland ⓘ |
| datum | ITRF-based geodetic datum ⓘ |
| designedFor |
large-scale mapping
ⓘ
modern GPS-based surveying ⓘ |
| feature |
high positional accuracy
ⓘ
low distortion over Ireland ⓘ single national projection ⓘ suitable for GPS integration ⓘ |
| hasAbbreviation | ITM ⓘ |
| hasProperty |
conformal projection
ⓘ
minimised scale distortion across Ireland ⓘ |
| introducedAs | successor to legacy Irish Grid system ⓘ |
| projectionType | Transverse Mercator ⓘ |
| purpose |
engineering applications
ⓘ
high-precision mapping ⓘ land surveying ⓘ national mapping ⓘ |
| regionCovered | island of Ireland ⓘ |
| replaces |
Irish grid reference system
ⓘ
surface form:
Irish Grid
|
| usedBy |
GIS professionals in Ireland
ⓘ
Ordnance Survey Ireland headquarters ⓘ
surface form:
Ordnance Survey Ireland
Ordnance Survey of Northern Ireland ⓘ surveyors in Ireland ⓘ |
| usedFor |
geospatial data management in Ireland
ⓘ
integration of GPS observations with national mapping ⓘ spatial analysis over Ireland ⓘ |
| usedIn |
cadastral mapping in Ireland
ⓘ
engineering design in Ireland ⓘ infrastructure planning in Ireland ⓘ topographic mapping of Ireland ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Irish Transverse Mercator Description of subject: Irish Transverse Mercator is a modern, high-precision map projection and coordinate reference system used for surveying and mapping across Ireland.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Irish Transverse Mercator coordinate system
this entity surface form:
Irish Transverse Mercator (approximate)