Statements (18)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:vertical_datum
|
| gptkbp:abbreviation |
gptkb:ODN
|
| gptkbp:category |
gptkb:Geography_of_the_United_Kingdom
Geodesy Surveying |
| gptkbp:dataCollected |
1915 to 1921
|
| gptkbp:established |
1921
|
| gptkbp:location |
gptkb:Newlyn,_Cornwall
|
| gptkbp:measures |
mean sea level
|
| gptkbp:referencePoint |
gptkb:Newlyn_Tidal_Observatory
|
| gptkbp:relatedTo |
gptkb:Ordnance_Survey_National_Grid
|
| gptkbp:replacedBy |
gptkb:Ordnance_Datum_Liverpool
|
| gptkbp:usedBy |
Ordnance Survey
|
| gptkbp:usedFor |
mapping heights in Great Britain
|
| gptkbp:usedIn |
gptkb:United_Kingdom
|
| gptkbp:bfsParent |
gptkb:OS_Terrain_50
|
| gptkbp:bfsLayer |
7
|
| http://www.w3.org/2000/01/rdf-schema#label |
Ordnance Datum Newlyn
|