OSGB36

E1003013

OSGB36 is the geodetic datum used as the reference framework for mapping Great Britain, underpinning the Ordnance Survey National Grid coordinate system.

All labels observed (2)

Label Occurrences
OSGB36 canonical 7
OSGB36 datum 1

How this entity was disambiguated

Statements (41)

Predicate Object
instanceOf geodetic datum ⓘ
terrestrial reference system ⓘ
alsoKnownAs Ordnance Survey Great Britain 1936 ⓘ
linked to: Ordnance Survey
axisUnits degrees ⓘ
basedOn triangulation of Great Britain ⓘ
category British geodetic datum ⓘ
coordinateReferenceSystemCode EPSG:4277 ⓘ
coordinateSystemType ellipsoidal ⓘ
countryUsedIn Great Britain ⓘ
datumOrigin near Newlyn, Cornwall (mean sea level) ⓘ
datumShiftRelativeTo WGS84 ⓘ
datumType horizontal datum ⓘ
ellipsoidInverseFlattening 299.3249646 ⓘ
ellipsoidSemiMajorAxis 6377563.396 metres ⓘ
epoch 1936 ⓘ
globalAccuracyRelativeToWGS84 lower than modern global datums ⓘ
gridSystem Ordnance Survey National Grid ⓘ
hasTransformationParametersDefinedBy EPSG registry ⓘ
introducedBy Ordnance Survey ⓘ
latitudeRange 49.9 to 61.1 degrees ⓘ
localFit optimized for Great Britain landmass ⓘ
longitudeRange -7.56 to 1.84 degrees ⓘ
maintainedBy Ordnance Survey ⓘ
notUsedIn Northern Ireland ⓘ
primeMeridian Greenwich ⓘ
realizationOf Airy 1830 ellipsoid fitted to Great Britain ⓘ
referenceEllipsoid Airy 1830 ⓘ
linked to: Airy 1830 ellipsoid
regionCovered England ⓘ
Isle of Man ⓘ
Scotland ⓘ
Wales ⓘ
requiresTransformationTo ETRS89 ⓘ
supersededInPracticeBy ETRS89 for some applications ⓘ
underpins Ordnance Survey National Grid ⓘ
usedBy Ordnance Survey ⓘ
usedFor engineering applications in Great Britain ⓘ
land surveying ⓘ
large-scale mapping ⓘ
topographic mapping of Great Britain ⓘ
usedIn British National Grid ⓘ
usedWithProjection Transverse Mercator ⓘ

How these facts were elicited

Referenced by (8)

Full triples — surface form annotated when it differs from this entity's canonical label.