Prime Meridian
E17848
The Prime Meridian is the internationally recognized zero-degree line of longitude from which all other longitudes and global time zones are measured.
Observed surface forms (9)
| Surface form | As subject | As object |
|---|---|---|
| Greenwich meridian | 0 | 2 |
| Prime Meridian (0° longitude) | 0 | 2 |
| Prime Meridian line | 0 | 2 |
| Prime Meridian of the World | 0 | 2 |
| Greenwich Meridian | 0 | 1 |
| Prime Meridian (Greenwich) | 0 | 1 |
| Prime Meridian at Greenwich | 0 | 1 |
| international prime meridian | 0 | 1 |
| zero meridian | 0 | 1 |
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
geographical line
→
line of longitude → reference meridian → |
| adoptedAt | International Meridian Conference → |
| adoptedBy | majority of participating nations → |
| adoptedInCity | Washington, D.C. → |
| adoptedInYear | 1884 → |
| alsoKnownAs |
Prime Meridian
→
surface form:
Greenwich meridian
Prime Meridian →
surface form:
zero meridian
|
| coordinateRole | zero degrees longitude → |
| coordinateSystem | geographic coordinate system → |
| countryCrossed |
Algeria
→
Antarctica → Burkina Faso → France → Ghana → Mali → Spain → Togo → United Kingdom → |
| definedBy | International Earth Rotation and Reference Systems Service → |
| defines | 0° longitude → |
| direction | north–south line → |
| formsGreatCircleWith | 180th meridian → |
| historicalBasis |
Prime Meridian
self-linksurface differs
→
surface form:
Greenwich meridian
|
| locatedOn | Earth → |
| longitudeValue | 0° → |
| meetsAtPolesWith | 180th meridian → |
| passesNear |
Accra
→
surface form:
Accra, Ghana
Brighton →
surface form:
Brighton, United Kingdom
Castellón, Spain → Canary Wharf →
surface form:
London Docklands
Valencia →
surface form:
Valencia, Spain
|
| passesThrough |
Greenwich
→
surface form:
Greenwich, London, United Kingdom
Maritime Greenwich →
surface form:
Royal Observatory, Greenwich
|
| referenceFor |
Greenwich Mean Time
→
GMT →
surface form:
Universal Time
eastern hemisphere → western hemisphere → |
| relatedConcept |
Coordinated Universal Time
→
Greenwich Mean Time → longitude → time zone → |
| replaced | multiple national prime meridians → |
| timeZoneReference | UTC+0 → |
| usedFor |
defining Coordinated Universal Time
→
defining global time zones → measuring longitude → |
Referenced by (25)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Greenwich meridian
this entity surface form:
zero meridian
subject surface form:
Greenwich Park
this entity surface form:
Prime Meridian line
this entity surface form:
Prime Meridian (Greenwich)
this entity surface form:
Prime Meridian of the World
this entity surface form:
Prime Meridian (0° longitude)
this entity surface form:
Prime Meridian (0° longitude)
this entity surface form:
international prime meridian
this entity surface form:
Prime Meridian line
this entity surface form:
Greenwich Meridian
this entity surface form:
Greenwich meridian
this entity surface form:
Prime Meridian of the World
subject surface form:
Castellón de la Plana
this entity surface form:
Prime Meridian at Greenwich