McMurdo Ice Shelf
E320193
The McMurdo Ice Shelf is a large floating extension of the Antarctic ice sheet located in the southwestern Ross Sea near Ross Island and McMurdo Sound.
All labels observed (1)
| Label | Occurrences |
|---|---|
| McMurdo Ice Shelf canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T3012423 — 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: McMurdo Ice Shelf Context triple: [Ross Dependency, contains, McMurdo Ice Shelf]
-
A.
Larsen Ice Shelf
The Larsen Ice Shelf is a large Antarctic ice shelf fringing the eastern coast of the Antarctic Peninsula, known for its dramatic partial collapses that have highlighted the impacts of climate change.
-
B.
Ross Ice Shelf
The Ross Ice Shelf is the world’s largest ice shelf, a vast floating extension of the Antarctic ice sheet that plays a key role in buttressing inland glaciers and influencing global sea-level stability.
-
C.
Filchner-Ronne Ice Shelf
The Filchner-Ronne Ice Shelf is one of Antarctica’s largest ice shelves, fringing the southern Weddell Sea and playing a key role in the region’s glaciology and ocean circulation.
-
D.
Dotson Ice Shelf
Dotson Ice Shelf is a floating extension of the West Antarctic Ice Sheet that drains into the Amundsen Sea and plays a significant role in regional ice loss and sea-level rise.
-
E.
Marie Byrd Land
Marie Byrd Land is a vast, remote, and largely ice-covered region of West Antarctica lying between the Ross Sea and the Amundsen Sea, notable for being one of the largest unclaimed territories on Earth.
- 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: McMurdo Ice Shelf Target entity description: The McMurdo Ice Shelf is a large floating extension of the Antarctic ice sheet located in the southwestern Ross Sea near Ross Island and McMurdo Sound.
-
A.
Larsen Ice Shelf
The Larsen Ice Shelf is a large Antarctic ice shelf fringing the eastern coast of the Antarctic Peninsula, known for its dramatic partial collapses that have highlighted the impacts of climate change.
-
B.
Ross Ice Shelf
The Ross Ice Shelf is the world’s largest ice shelf, a vast floating extension of the Antarctic ice sheet that plays a key role in buttressing inland glaciers and influencing global sea-level stability.
-
C.
Filchner-Ronne Ice Shelf
The Filchner-Ronne Ice Shelf is one of Antarctica’s largest ice shelves, fringing the southern Weddell Sea and playing a key role in the region’s glaciology and ocean circulation.
-
D.
Dotson Ice Shelf
Dotson Ice Shelf is a floating extension of the West Antarctic Ice Sheet that drains into the Amundsen Sea and plays a significant role in regional ice loss and sea-level rise.
-
E.
Marie Byrd Land
Marie Byrd Land is a vast, remote, and largely ice-covered region of West Antarctica lying between the Ross Sea and the Amundsen Sea, notable for being one of the largest unclaimed territories on Earth.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
geographical feature
ⓘ
glaciological feature ⓘ ice shelf ⓘ |
| borders |
McMurdo Sound
ⓘ
Ross Island ⓘ |
| hasCategory |
Bodies of ice of the Ross Sea
ⓘ
Ice shelves of Antarctica ⓘ |
| hasClimate | Antarctic climate ⓘ |
| hasComposition | glacial ice ⓘ |
| hasContinent | Antarctica ⓘ |
| hasEnvironment | polar ⓘ |
| hasFeature |
crevasses
ⓘ
ice front facing Ross Sea ⓘ snow-covered surface ⓘ |
| hasGeneralOrientation | roughly east–west along the coast ⓘ |
| hasHemisphere | Southern Hemisphere ⓘ |
| hasLocationRelativeTo |
adjacent to Ross Island
ⓘ
south of McMurdo Sound ⓘ |
| hasNearbyHumanPresence |
McMurdo Station
ⓘ
Scott Base ⓘ |
| hasOcean | Southern Ocean ⓘ |
| hasPhysicalState | floating ⓘ |
| hasProcess | ice flow from Antarctic ice sheet to Ross Sea ⓘ |
| hasRegion | southwestern Ross Sea region ⓘ |
| hasRisk |
crevasse hazards
ⓘ
ice shelf instability ⓘ |
| hasSurface | ice ⓘ |
| hasType | coastal ice shelf ⓘ |
| influences |
local ocean circulation in southwestern Ross Sea
ⓘ
sea-ice formation in McMurdo Sound ⓘ |
| isA |
floating extension of the Antarctic ice sheet
ⓘ
floating ice platform ⓘ |
| isSubjectOf |
climate studies
ⓘ
glaciological research ⓘ ocean–ice interaction studies ⓘ |
| locatedIn |
Antarctica
ⓘ
Ross Sea ⓘ Southern Hemisphere ⓘ Ross Sea ⓘ
surface form:
Southwestern Ross Sea
|
| near |
McMurdo Sound
ⓘ
Ross Island ⓘ |
| partOf |
Antarctic Ice Sheet
ⓘ
surface form:
Antarctic ice sheet
Ross Ice Shelf ⓘ
surface form:
Ross Sea embayment ice shelves
Ross Ice Shelf ⓘ
surface form:
Ross Sea sector of the Antarctic ice sheet
|
| usedFor |
logistical access to inland Antarctica
ⓘ
scientific field operations ⓘ |
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: McMurdo Ice Shelf Description of subject: The McMurdo Ice Shelf is a large floating extension of the Antarctic ice sheet located in the southwestern Ross Sea near Ross Island and McMurdo Sound.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Ross Dependency