Rossby waves

E328309

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.

All labels observed (3)

How this entity was disambiguated

Statements (50)

Predicate Object
instanceOf atmospheric phenomenon
oceanographic phenomenon
planetary wave
affects climate patterns on seasonal to interannual timescales
global weather patterns
long-range weather predictability
alsoKnownAs large-scale Rossby waves
planetary Rossby waves
canPropagate eastward relative to ground in strong westerlies
causedBy latitudinal variation of Coriolis parameter
componentOf general circulation of the atmosphere
general circulation of the ocean
dependsOn beta effect
describedBy Rossby waves self-linksurface differs
surface form: Rossby wave dispersion relation
drivenBy Earth rotation
governedBy potential vorticity conservation
quasi-geostrophic equations
hasKeyParameter Coriolis parameter
background zonal flow
beta parameter
meridional gradient of potential vorticity
hasProperty conserve potential vorticity along flow
dispersive waves
influences El Niño–Southern Oscillation impacts
blocking highs
climate variability
cold air outbreaks
heat waves
jet stream meandering
monsoon variability
ocean gyre circulation
precipitation patterns
storm track patterns
teleconnection patterns
thermocline depth variations
namedAfter Carl-Gustaf Rossby
occursIn high latitudes
mid-latitudes
propagateIn Earth’s atmosphere
surface form: Earth atmosphere

Earth oceans
propagationDirection westward relative to mean flow
restoringMechanism latitudinal gradient of planetary vorticity
scale planetary scale
synoptic scale
studiedIn dynamical meteorology
physical oceanography
typicalTimescale days to weeks
typicalWavelength thousands of kilometers
visualizedAs large-scale meanders in jet streams
westward-propagating sea surface height anomalies

How these facts were elicited

Referenced by (3)

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

North Atlantic Oscillation influences Rossby waves
this entity surface form: North Atlantic blocking patterns
Rossby waves describedBy Rossby waves self-linksurface differs
this entity surface form: Rossby wave dispersion relation