Charney–Eliassen model
E542053
The Charney–Eliassen model is a foundational quasi-geostrophic framework in atmospheric dynamics used to describe large-scale, balanced motions such as midlatitude cyclones and jet streams.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Charney–Eliassen model canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5696257 — 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: Charney–Eliassen model Context triple: [Jule Gregory Charney, knownFor, Charney–Eliassen model]
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A.
Manabe–Wetherald climate model
The Manabe–Wetherald climate model is a pioneering one-dimensional radiative–convective model that first quantified how increasing atmospheric carbon dioxide affects Earth’s temperature and vertical temperature profile.
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B.
Bergen school of meteorology cyclone model
The Bergen school of meteorology cyclone model is an early 20th-century conceptual framework that explains the life cycle and structure of mid-latitude cyclones using air mass contrasts and frontal systems.
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C.
Goddard Earth Observing System models
The Goddard Earth Observing System models are a suite of advanced atmospheric and Earth system models used for global weather, climate, and data assimilation research and forecasting.
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D.
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.
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E.
MERRA reanalysis system
The MERRA reanalysis system is a NASA atmospheric reanalysis project that uses the Goddard Earth Observing System models to produce a long-term, consistent record of global weather and climate data.
- 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: Charney–Eliassen model Target entity description: The Charney–Eliassen model is a foundational quasi-geostrophic framework in atmospheric dynamics used to describe large-scale, balanced motions such as midlatitude cyclones and jet streams.
-
A.
Manabe–Wetherald climate model
The Manabe–Wetherald climate model is a pioneering one-dimensional radiative–convective model that first quantified how increasing atmospheric carbon dioxide affects Earth’s temperature and vertical temperature profile.
-
B.
Bergen school of meteorology cyclone model
The Bergen school of meteorology cyclone model is an early 20th-century conceptual framework that explains the life cycle and structure of mid-latitude cyclones using air mass contrasts and frontal systems.
-
C.
Goddard Earth Observing System models
The Goddard Earth Observing System models are a suite of advanced atmospheric and Earth system models used for global weather, climate, and data assimilation research and forecasting.
-
D.
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.
-
E.
MERRA reanalysis system
The MERRA reanalysis system is a NASA atmospheric reanalysis project that uses the Goddard Earth Observing System models to produce a long-term, consistent record of global weather and climate data.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
atmospheric dynamics model
ⓘ
quasi-geostrophic model ⓘ theoretical framework ⓘ |
| appliesTo |
midlatitudes
ⓘ
synoptic-scale atmospheric motions ⓘ |
| assumes |
geostrophic balance
ⓘ
hydrostatic balance ⓘ small Rossby number ⓘ small perturbations about a basic state ⓘ |
| basedOn | quasi-geostrophic approximation ⓘ |
| basicState |
thermal wind balanced jet
ⓘ
zonal mean flow ⓘ |
| category |
balanced atmospheric models
ⓘ
large-scale circulation models ⓘ |
| coreConcept |
potential vorticity conservation
ⓘ
thermal wind balance ⓘ thermodynamic energy equation ⓘ vorticity equation ⓘ |
| describes |
jet streams
ⓘ
large-scale balanced atmospheric motions ⓘ midlatitude cyclones ⓘ |
| field |
atmospheric dynamics
ⓘ
geophysical fluid dynamics ⓘ |
| historicalRole | foundational framework in synoptic-scale meteorology ⓘ |
| mathematicalForm |
elliptic partial differential equation for streamfunction
ⓘ
set of linearized quasi-geostrophic equations ⓘ |
| namedAfter |
Arnt Eliassen
ⓘ
Jule Gregory Charney ⓘ |
| neglects |
ageostrophic inertia-gravity waves
ⓘ
small-scale turbulence ⓘ |
| relatedTo |
Rossby waves
ⓘ
baroclinic instability theory ⓘ quasi-geostrophic theory ⓘ |
| scale | synoptic scale ⓘ |
| spatialScale | thousands of kilometers ⓘ |
| timeScale | days ⓘ |
| usedFor |
analyzing jet stream dynamics
ⓘ
balanced flow analysis ⓘ diagnosing secondary circulations ⓘ idealized studies of midlatitude cyclones ⓘ studying baroclinic development ⓘ |
| usedIn |
idealized numerical experiments
ⓘ
theoretical meteorology education ⓘ |
| uses |
pressure coordinates
ⓘ
streamfunction formulation ⓘ |
| validUnder | large-scale slowly varying flow conditions ⓘ |
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: Charney–Eliassen model Description of subject: The Charney–Eliassen model is a foundational quasi-geostrophic framework in atmospheric dynamics used to describe large-scale, balanced motions such as midlatitude cyclones and jet streams.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.