Roaring Forties
E244532
The Roaring Forties are strong westerly winds found in the Southern Hemisphere between about 40° and 50° latitude, historically notorious among sailors for producing rough seas and fast eastward passages.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Roaring Forties canonical | 3 |
| the Roaring Forties | 2 |
| Southern Ocean wind belt | 1 |
| Southern Westerlies | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2209030 — 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: Roaring Forties Context triple: [Furious Fifties, follows, Roaring Forties]
-
A.
Malvinas Current
The Malvinas Current is a cold, northward-flowing ocean current off the southeastern coast of South America, formed by subantarctic waters and strongly influencing the region’s climate and marine ecosystems.
-
B.
Leeuwin Current
The Leeuwin Current is a warm ocean current that flows southward along the western coast of Australia, strongly influencing the region’s climate and marine ecosystems.
-
C.
Tasman Front
The Tasman Front is a major oceanic boundary current that separates warm subtropical waters from cooler temperate waters in the Tasman Sea between Australia and New Zealand.
-
D.
Subantarctic Front
The Subantarctic Front is a major oceanographic boundary in the Southern Ocean that separates relatively warm, salty subtropical waters from cooler, fresher subantarctic waters and plays a key role in global heat and nutrient transport.
-
E.
Bora wind
The Bora wind is a cold, dry, and often violent northeasterly wind that blows from the interior highlands toward the Adriatic Sea, especially affecting coastal areas like Trieste.
- 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: Roaring Forties Target entity description: The Roaring Forties are strong westerly winds found in the Southern Hemisphere between about 40° and 50° latitude, historically notorious among sailors for producing rough seas and fast eastward passages.
-
A.
Malvinas Current
The Malvinas Current is a cold, northward-flowing ocean current off the southeastern coast of South America, formed by subantarctic waters and strongly influencing the region’s climate and marine ecosystems.
-
B.
Leeuwin Current
The Leeuwin Current is a warm ocean current that flows southward along the western coast of Australia, strongly influencing the region’s climate and marine ecosystems.
-
C.
Tasman Front
The Tasman Front is a major oceanic boundary current that separates warm subtropical waters from cooler temperate waters in the Tasman Sea between Australia and New Zealand.
-
D.
Subantarctic Front
The Subantarctic Front is a major oceanographic boundary in the Southern Ocean that separates relatively warm, salty subtropical waters from cooler, fresher subantarctic waters and plays a key role in global heat and nutrient transport.
-
E.
Bora wind
The Bora wind is a cold, dry, and often violent northeasterly wind that blows from the interior highlands toward the Adriatic Sea, especially affecting coastal areas like Trieste.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
meteorological phenomenon
ⓘ
westerly wind ⓘ wind belt ⓘ |
| affects |
southern coasts of Australia
ⓘ
southern coasts of New Zealand ⓘ southern coasts of South America ⓘ |
| associatedWith |
frequent storms
ⓘ
large ocean waves ⓘ rapid eastward movement of low-pressure systems ⓘ rough seas ⓘ strong winds ⓘ |
| cause |
Coriolis effect
ⓘ
pressure gradient between subtropical high-pressure belt and subpolar low-pressure belt ⓘ |
| climateImpact |
enhanced precipitation in mid-latitude Southern Hemisphere regions
ⓘ
influence on weather of southern continental margins ⓘ |
| climatologicalRole |
important component of global atmospheric circulation
ⓘ
major driver of Southern Hemisphere mid-latitude weather ⓘ |
| energyPotential | high potential for offshore wind energy ⓘ |
| foundOver |
South Atlantic
ⓘ
surface form:
South Atlantic Ocean
Southwest Indian Ocean ⓘ
surface form:
South Indian Ocean
South Pacific Ocean ⓘ Southern Ocean ⓘ |
| historicallyNotedBy | sailors of the Age of Sail ⓘ |
| historicallyUsedFor | fast eastward sailing passages ⓘ |
| influences |
Southern Ocean wave climate
ⓘ
ocean surface currents in the Southern Hemisphere ⓘ storm tracks in mid-latitudes of Southern Hemisphere ⓘ |
| locatedIn | Southern Hemisphere ⓘ |
| modernRelevance |
important for global shipping routes in the Southern Ocean
ⓘ
important for yacht racing and round-the-world sailing events ⓘ |
| nameOrigin | nickname given by sailors for the roaring sound of strong winds ⓘ |
| navigationSignificance | critical consideration for route planning of sailing vessels ⓘ |
| notoriousFor |
hazardous sailing conditions
ⓘ
ship damage and shipwreck risk ⓘ |
| partOf | Southern Hemisphere mid-latitude westerly wind belt ⓘ |
| prevailingWindDirection | west-to-east ⓘ |
| relatedTo |
the Furious Fifties
ⓘ
surface form:
Furious Fifties
the Screaming Sixties ⓘ
surface form:
Screaming Sixties
|
| strongerInSeason | Southern Hemisphere winter ⓘ |
| strongestOver | open ocean areas with minimal land interruption ⓘ |
| typicalEnvironment | remote, sparsely inhabited oceanic regions ⓘ |
| typicalLatitudeRange | 40°S–50°S ⓘ |
| weakenedBy |
landmasses such as Africa
ⓘ
landmasses such as Australia ⓘ landmasses such as South America ⓘ |
| windType | westerlies ⓘ |
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: Roaring Forties Description of subject: The Roaring Forties are strong westerly winds found in the Southern Hemisphere between about 40° and 50° latitude, historically notorious among sailors for producing rough seas and fast eastward passages.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Furious Fifties
subject surface form:
Furious Fifties
this entity surface form:
the Roaring Forties
this entity surface form:
the Roaring Forties
this entity surface form:
Southern Westerlies
this entity surface form:
Southern Ocean wind belt