Walker circulation
E880212
The Walker circulation is a large-scale atmospheric circulation pattern over the tropical Pacific characterized by east–west trade winds, rising warm air over the western Pacific, and descending cooler air over the eastern Pacific, strongly linked to phenomena like El Niño and La Niña.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Walker circulation canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10700699 — 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: Walker circulation Context triple: [Equatorial Pacific, influences, Walker circulation]
-
A.
Hadley circulation
Hadley circulation is a large-scale atmospheric circulation pattern in which warm air rises near the equator, moves poleward at high altitudes, cools and sinks in the subtropics, and returns equatorward near the surface, strongly influencing tropical and subtropical climate.
-
B.
Langmuir circulation
Langmuir circulation is a wind-driven pattern of shallow, counter-rotating vortices in the upper ocean that organizes floating material into parallel streaks on the water surface.
-
C.
Ekman transport
Ekman transport is an oceanographic process in which wind-driven surface waters move at an angle to the wind direction due to the Coriolis effect, causing net water transport perpendicular to the wind.
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D.
Ekman layer
The Ekman layer is the thin region of fluid near a boundary (such as the ocean surface or seafloor) where the balance between friction and the Coriolis effect causes the flow to spiral with depth.
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E.
Kármán vortex street
Kármán vortex street is a repeating pattern of swirling vortices formed when a fluid flows past a bluff body, fundamental in fluid dynamics and aerodynamics.
- 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: Walker circulation Target entity description: The Walker circulation is a large-scale atmospheric circulation pattern over the tropical Pacific characterized by east–west trade winds, rising warm air over the western Pacific, and descending cooler air over the eastern Pacific, strongly linked to phenomena like El Niño and La Niña.
-
A.
Hadley circulation
Hadley circulation is a large-scale atmospheric circulation pattern in which warm air rises near the equator, moves poleward at high altitudes, cools and sinks in the subtropics, and returns equatorward near the surface, strongly influencing tropical and subtropical climate.
-
B.
Langmuir circulation
Langmuir circulation is a wind-driven pattern of shallow, counter-rotating vortices in the upper ocean that organizes floating material into parallel streaks on the water surface.
-
C.
Ekman transport
Ekman transport is an oceanographic process in which wind-driven surface waters move at an angle to the wind direction due to the Coriolis effect, causing net water transport perpendicular to the wind.
-
D.
Ekman layer
The Ekman layer is the thin region of fluid near a boundary (such as the ocean surface or seafloor) where the balance between friction and the Coriolis effect causes the flow to spiral with depth.
-
E.
Kármán vortex street
Kármán vortex street is a repeating pattern of swirling vortices formed when a fluid flows past a bluff body, fundamental in fluid dynamics and aerodynamics.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
atmospheric circulation pattern
ⓘ
large-scale circulation ⓘ |
| affects |
global precipitation patterns
ⓘ
global temperature anomalies ⓘ marine ecosystems in the tropical Pacific ⓘ position of the Intertropical Convergence Zone in the Pacific ⓘ tropical cyclone activity in the Pacific ⓘ |
| associatedWith |
El Niño
NERFINISHED
ⓘ
El Niño–Southern Oscillation NERFINISHED ⓘ La Niña NERFINISHED ⓘ |
| characterizedBy |
convection over the western Pacific warm pool
ⓘ
subsidence over the eastern Pacific ⓘ surface easterly trade winds along the equatorial Pacific ⓘ upper-tropospheric westerly winds over the equatorial Pacific ⓘ |
| contrastsWith | Hadley circulation NERFINISHED ⓘ |
| drivenBy |
zonal pressure gradient in the tropical Pacific
ⓘ
zonal sea surface temperature gradient in the tropical Pacific ⓘ |
| hasComponent | trade winds ⓘ |
| hasDirection | east–west ⓘ |
| hasFeature |
descending air over eastern Pacific
ⓘ
rising air over western Pacific ⓘ |
| hasPhase |
El Niño phase
ⓘ
La Niña phase ⓘ normal (neutral) phase ⓘ |
| hasSpatialOrientation | zonal ⓘ |
| influences |
Atlantic climate
ⓘ
Indian Ocean climate ⓘ Indonesian–Australian monsoon ⓘ South American climate ⓘ global climate variability ⓘ tropical Pacific rainfall patterns ⓘ |
| linkedTo |
Southern Oscillation
NERFINISHED
ⓘ
sea level pressure differences between western and eastern Pacific ⓘ thermocline depth variations in the equatorial Pacific ⓘ |
| modulatedBy |
climate change
ⓘ
ocean–atmosphere coupling ⓘ sea surface temperature anomalies ⓘ |
| namedAfter | Gilbert Walker NERFINISHED ⓘ |
| operatesOver | tropical Pacific Ocean ⓘ |
| partOf |
global atmospheric circulation
ⓘ
tropical atmospheric circulation ⓘ |
| relatedTo |
Bjerknes feedback
NERFINISHED
ⓘ
Pacific trade wind system NERFINISHED ⓘ |
| strongerDuring | La Niña events ⓘ |
| studiedIn |
climatology
ⓘ
ocean–atmosphere dynamics ⓘ tropical meteorology ⓘ |
| timescale | seasonal to interannual ⓘ |
| weakerDuring | El Niño events ⓘ |
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: Walker circulation Description of subject: The Walker circulation is a large-scale atmospheric circulation pattern over the tropical Pacific characterized by east–west trade winds, rising warm air over the western Pacific, and descending cooler air over the eastern Pacific, strongly linked to phenomena like El Niño and La Niña.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.