Eady–Eliassen model
E549982
The Eady–Eliassen model is a foundational theoretical framework in atmospheric dynamics used to analyze baroclinic instability and the development of midlatitude weather systems.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Eady model | 1 |
| Eady–Eliassen model canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5854067 — 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: Eady–Eliassen model Context triple: [Arnt Eliassen, hasEponym, Eady–Eliassen model]
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A.
Charney–Eliassen model
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.
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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.
Ertel potential vorticity theorem
The Ertel potential vorticity theorem is a fundamental result in geophysical fluid dynamics that states potential vorticity is materially conserved for an inviscid, adiabatic flow, making it a key tool for understanding large-scale atmospheric and oceanic motions.
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D.
Rossby waves
Rossby waves are large-scale atmospheric and oceanic waves driven by Earth's rotation and the variation of the Coriolis effect with latitude, playing a key role in shaping global weather and climate patterns.
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E.
Charney–Phillips vertical coordinate
The Charney–Phillips vertical coordinate is a numerical weather prediction grid arrangement that improves the representation of atmospheric stratification and gravity waves by staggering thermodynamic and velocity variables in the vertical.
- 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: Eady–Eliassen model Target entity description: The Eady–Eliassen model is a foundational theoretical framework in atmospheric dynamics used to analyze baroclinic instability and the development of midlatitude weather systems.
-
A.
Charney–Eliassen model
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.
-
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.
Ertel potential vorticity theorem
The Ertel potential vorticity theorem is a fundamental result in geophysical fluid dynamics that states potential vorticity is materially conserved for an inviscid, adiabatic flow, making it a key tool for understanding large-scale atmospheric and oceanic motions.
-
D.
Rossby waves
Rossby waves are large-scale atmospheric and oceanic waves driven by Earth's rotation and the variation of the Coriolis effect with latitude, playing a key role in shaping global weather and climate patterns.
-
E.
Charney–Phillips vertical coordinate
The Charney–Phillips vertical coordinate is a numerical weather prediction grid arrangement that improves the representation of atmospheric stratification and gravity waves by staggering thermodynamic and velocity variables in the vertical.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
atmospheric dynamics model
ⓘ
baroclinic instability model ⓘ theoretical model ⓘ |
| appliesTo |
midlatitude troposphere
ⓘ
synoptic-scale atmospheric motions ⓘ |
| assumes |
Boussinesq approximation
ⓘ
adiabatic flow ⓘ constant vertical shear of the basic flow ⓘ f-plane approximation ⓘ inviscid flow ⓘ rigid lower boundary ⓘ rigid upper boundary ⓘ uniform static stability ⓘ |
| basedOn | quasi-geostrophic theory ⓘ |
| category |
atmospheric science
ⓘ
geophysical fluid dynamics models ⓘ theoretical meteorology ⓘ |
| describes |
energy conversion from mean flow to eddies
ⓘ
growth rate of baroclinic disturbances ⓘ tilt of eddies with height ⓘ vertical structure of unstable modes ⓘ |
| field |
atmospheric dynamics
ⓘ
geophysical fluid dynamics ⓘ |
| influenced | development of modern baroclinic instability theory ⓘ |
| involves |
boundary conditions at top and bottom of the atmosphere
ⓘ
eigenvalue problem for growth rates ⓘ normal-mode decomposition ⓘ |
| provides |
characteristic horizontal wavelength of most unstable modes
ⓘ
maximum growth rate for baroclinic waves under idealized conditions ⓘ |
| relatedTo |
Charney model of baroclinic instability
ⓘ
Eady model ⓘ
linked to:
Eady–Eliassen model
Eliassen–Palm theory ⓘ
linked to:
Eliassen–Palm theorem
quasi-geostrophic potential vorticity equation ⓘ |
| simplifies | full primitive equations of motion ⓘ |
| usedFor |
analysis of baroclinic instability
ⓘ
diagnosis of synoptic-scale disturbances ⓘ linear stability analysis of atmospheric flows ⓘ study of midlatitude weather systems ⓘ understanding growth of baroclinic waves ⓘ |
| usedIn |
idealized numerical experiments of baroclinic waves
ⓘ
teaching of synoptic and dynamical meteorology ⓘ theoretical studies of cyclone development ⓘ |
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: Eady–Eliassen model Description of subject: The Eady–Eliassen model is a foundational theoretical framework in atmospheric dynamics used to analyze baroclinic instability and the development of midlatitude weather systems.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Eady–Eliassen model