Eliassen–Palm theorem

E549980

result in atmospheric dynamics theorem

The Eliassen–Palm theorem is a fundamental result in atmospheric dynamics that relates wave activity and mean-flow interaction, providing a framework for understanding how atmospheric waves transport momentum and energy.

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Statements (40)

Predicate	Object
instanceOf	result in atmospheric dynamics ⓘ theorem ⓘ
appliesTo	Rossby waves NERFINISHED ⓘ large-scale atmospheric waves ⓘ planetary waves ⓘ quasi-geostrophic flow ⓘ zonal-mean flow ⓘ
associatedConcept	Eliassen–Palm flux NERFINISHED ⓘ pseudomomentum ⓘ quasi-geostrophic potential vorticity ⓘ transformed Eulerian mean formulation ⓘ wave activity ⓘ zonal-mean momentum equation ⓘ
assumes	scale separation between waves and mean flow ⓘ small-amplitude waves ⓘ
context	climate dynamics ⓘ general circulation of the atmosphere ⓘ middle atmosphere dynamics ⓘ
describes	relationship between wave activity and mean flow ⓘ transport of energy by atmospheric waves ⓘ transport of momentum by atmospheric waves ⓘ transport of potential vorticity by waves ⓘ wave–mean flow interaction ⓘ
field	atmospheric dynamics ⓘ geophysical fluid dynamics ⓘ meteorology ⓘ
implies	conservation of wave activity in absence of dissipation and forcing ⓘ mean-flow acceleration where Eliassen–Palm flux converges ⓘ mean-flow deceleration where Eliassen–Palm flux diverges ⓘ
namedAfter	Arnt Eliassen NERFINISHED ⓘ Erik Palmén NERFINISHED ⓘ
provides	diagnostic tool for wave activity fluxes ⓘ framework for understanding wave–mean flow interaction ⓘ
relates	Eliassen–Palm flux to mean-flow acceleration NERFINISHED ⓘ wave activity conservation to mean-flow changes ⓘ
usedFor	analyzing sudden stratospheric warmings ⓘ diagnosing wave forcing of the zonal mean wind ⓘ studying atmospheric circulation response to waves ⓘ studying stratosphere–troposphere coupling ⓘ understanding midlatitude jet variability ⓘ

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

Arnt Eliassen → notableWork → Eliassen–Palm theorem ⓘ