Hadley circulation
E524186
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.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Hadley circulation canonical | 4 |
| Hadley cell circulation | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5493132 — 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: Hadley circulation Context triple: [Bjerknes compensation, relatedTo, Hadley circulation]
-
A.
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.
-
B.
Madden–Julian Oscillation
The Madden–Julian Oscillation is a large-scale tropical atmospheric pattern characterized by eastward-moving pulses of enhanced and suppressed rainfall that strongly influence global weather and climate variability on intraseasonal timescales.
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C.
North Pacific subtropical high
The North Pacific subtropical high is a large, semi-permanent high-pressure system over the northeastern Pacific Ocean that strongly influences the region’s climate, winds, and ocean currents.
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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.
-
E.
Southern Oscillation
The Southern Oscillation is a large-scale atmospheric pressure pattern across the tropical Pacific that drives the El Niño–Southern Oscillation climate phenomenon and influences global weather and rainfall.
- 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: Hadley circulation Target entity description: 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.
-
A.
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.
-
B.
Madden–Julian Oscillation
The Madden–Julian Oscillation is a large-scale tropical atmospheric pattern characterized by eastward-moving pulses of enhanced and suppressed rainfall that strongly influence global weather and climate variability on intraseasonal timescales.
-
C.
North Pacific subtropical high
The North Pacific subtropical high is a large, semi-permanent high-pressure system over the northeastern Pacific Ocean that strongly influences the region’s climate, winds, and ocean currents.
-
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.
Southern Oscillation
The Southern Oscillation is a large-scale atmospheric pressure pattern across the tropical Pacific that drives the El Niño–Southern Oscillation climate phenomenon and influences global weather and rainfall.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
atmospheric circulation cell
ⓘ
large-scale atmospheric circulation pattern ⓘ |
| affects |
Hadley cell edge latitude
ⓘ
tropical cyclone formation regions ⓘ |
| associatedWith |
Intertropical Convergence Zone
NERFINISHED
ⓘ
subtropical deserts ⓘ subtropical highs ⓘ trade winds ⓘ |
| causes | subsidence in subtropical regions ⓘ |
| dependsOn |
Coriolis effect
NERFINISHED
ⓘ
Earth rotation ⓘ meridional temperature gradient ⓘ |
| drivenBy |
differential solar heating between equator and subtropics
ⓘ
equator-to-pole temperature gradient ⓘ |
| edgeAssociatedWith |
subtropical jet
ⓘ
transition between tropics and midlatitudes ⓘ |
| energyTransport | transports heat poleward ⓘ |
| firstDescribedBy | George Hadley NERFINISHED ⓘ |
| firstDescribedIn | 18th century ⓘ |
| hasComponent |
equatorward flow near the surface
ⓘ
poleward flow aloft ⓘ rising motion near the equator ⓘ sinking motion in the subtropics ⓘ |
| hemisphere |
Northern Hemisphere
NERFINISHED
ⓘ
Southern Hemisphere ⓘ |
| influences |
global precipitation patterns
ⓘ
location of tropical rain belts ⓘ strength and position of subtropical jet streams ⓘ subtropical climate ⓘ tropical climate ⓘ |
| linkedTo | formation of major hot deserts ⓘ |
| modulatedBy |
El Niño–Southern Oscillation
NERFINISHED
ⓘ
global warming ⓘ |
| momentumTransport | redistributes angular momentum ⓘ |
| namedAfter | George Hadley NERFINISHED ⓘ |
| observedBy |
reanalysis datasets
ⓘ
satellite observations ⓘ |
| occursIn | Earth atmosphere NERFINISHED ⓘ |
| relatedTo |
Ferrel circulation
NERFINISHED
ⓘ
Walker circulation NERFINISHED ⓘ |
| scale | planetary scale ⓘ |
| strengthVariesWith |
hemisphere
ⓘ
season ⓘ |
| studiedIn | climate models ⓘ |
| surfaceBranchLocation | trade wind belt ⓘ |
| typicalLatitudeExtent | from equator to about 30 degrees latitude ⓘ |
| upperBranchLocation | tropical upper troposphere ⓘ |
| verticalExtent | troposphere ⓘ |
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: Hadley circulation Description of subject: 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.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Hadley cell circulation