Hubbard Glacier
E848364
Hubbard Glacier is a massive tidewater glacier in eastern Alaska and Yukon, known for its rapid advance into the sea and dramatic ice calving events.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Hubbard Glacier canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8980082 — 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: Hubbard Glacier Context triple: [Hubbard Glacier (portion), partOf, Hubbard Glacier]
-
A.
Winthrop Glacier
Winthrop Glacier is a large valley glacier on the northeastern flank of Mount Rainier in Washington State, known for its extensive ice cover and contribution to the mountain’s glacial system.
-
B.
Watkins Glacier
Watkins Glacier is one of the alpine glaciers on Mount Shasta in northern California, contributing to the mountain’s perennial ice and snow cover.
-
C.
Illecillewaet Glacier
Illecillewaet Glacier is a historically significant and heavily studied mountain glacier in British Columbia’s Selkirk Mountains, long known as a key site for early North American glaciology and tourism.
-
D.
Hayes Glacier
Hayes Glacier is a prominent glacier flowing from the slopes of Mount Hayes in the eastern Alaska Range of Alaska, United States.
-
E.
Woodbury Glacier
Woodbury Glacier is a mountain glacier located within Kokanee Glacier Provincial Park in the Selkirk Mountains of southeastern British Columbia, Canada.
- 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: Hubbard Glacier Target entity description: Hubbard Glacier is a massive tidewater glacier in eastern Alaska and Yukon, known for its rapid advance into the sea and dramatic ice calving events.
-
A.
Winthrop Glacier
Winthrop Glacier is a large valley glacier on the northeastern flank of Mount Rainier in Washington State, known for its extensive ice cover and contribution to the mountain’s glacial system.
-
B.
Watkins Glacier
Watkins Glacier is one of the alpine glaciers on Mount Shasta in northern California, contributing to the mountain’s perennial ice and snow cover.
-
C.
Illecillewaet Glacier
Illecillewaet Glacier is a historically significant and heavily studied mountain glacier in British Columbia’s Selkirk Mountains, long known as a key site for early North American glaciology and tourism.
-
D.
Hayes Glacier
Hayes Glacier is a prominent glacier flowing from the slopes of Mount Hayes in the eastern Alaska Range of Alaska, United States.
-
E.
Woodbury Glacier
Woodbury Glacier is a mountain glacier located within Kokanee Glacier Provincial Park in the Selkirk Mountains of southeastern British Columbia, Canada.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
natural geographic feature
ⓘ
tidewater glacier ⓘ |
| access | primarily by boat or ship ⓘ |
| calvingType |
subaerial calving
ⓘ
subaqueous calving ⓘ |
| climateResponse | unusual for being an advancing glacier in a warming climate ⓘ |
| continent | North America ⓘ |
| crossesBorderBetween | Alaska and Yukon ⓘ |
| drainageBasin | Gulf of Alaska NERFINISHED ⓘ |
| featureType | calving glacier terminus ⓘ |
| flowsInto |
Disenchantment Bay
NERFINISHED
ⓘ
Russell Fjord NERFINISHED ⓘ |
| glacierFrontHeight |
up to about 200 feet above water
ⓘ
up to about 60 meters above water ⓘ |
| hasLanguageName | English ⓘ |
| hazard |
icebergs calved into Disenchantment Bay
ⓘ
sudden changes in fjord water level if damming occurs ⓘ |
| iceThickness | up to several hundred meters thick (variable) ⓘ |
| knownFor |
being one of the largest tidewater glaciers in North America
ⓘ
dramatic ice calving events ⓘ periodic blockage of Russell Fjord ⓘ rapid advance into the sea ⓘ |
| length |
approximately 122 kilometers
ⓘ
approximately 76 miles ⓘ |
| locatedIn |
Yukon
NERFINISHED
ⓘ
eastern Alaska ⓘ |
| locatedInCountry |
Canada
ⓘ
United States of America ⓘ
surface form:
United States
|
| locatedInRegion | Yakutat Borough, Alaska NERFINISHED ⓘ |
| movementRate | several meters per day at the terminus (variable) ⓘ |
| namedAfter | Gardiner Greene Hubbard NERFINISHED ⓘ |
| nameOrigin | named for the first president of the National Geographic Society ⓘ |
| near |
Wrangell–St. Elias National Park and Preserve
NERFINISHED
ⓘ
Yakutat, Alaska NERFINISHED ⓘ |
| notableEvent |
blocked Russell Fjord in 1986
ⓘ
partial blockage of Russell Fjord in 2002 ⓘ |
| oceanProximity | adjacent to the Gulf of Alaska ⓘ |
| partOf | Saint Elias Mountains NERFINISHED ⓘ |
| risk | potential to permanently dam Russell Fjord ⓘ |
| sourceRegion | icefields of the Saint Elias Mountains ⓘ |
| status | advancing ⓘ |
| surfaceArea |
approximately 1,500 square miles
ⓘ
approximately 3,900 square kilometers ⓘ |
| terminatesIn |
Disenchantment Bay
NERFINISHED
ⓘ
Russell Fjord NERFINISHED ⓘ |
| tourism |
popular destination for cruise ships
ⓘ
popular site for glacier viewing and photography ⓘ |
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: Hubbard Glacier Description of subject: Hubbard Glacier is a massive tidewater glacier in eastern Alaska and Yukon, known for its rapid advance into the sea and dramatic ice calving events.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.