Planetary vorticity effect

{
  "id": "MLC-T-MET-007969",
  "term": "Planetary vorticity effect",
  "field": "Meteorology and atmospheric science",
  "definition": "The change in a fluid parcel's planetary vorticity, the Coriolis parameter f, as it moves north or south. In flow that conserves absolute vorticity, a parcel moving poleward gains planetary vorticity and so acquires negative relative vorticity, while one moving equatorward does the reverse. This beta effect supplies the restoring mechanism of Rossby waves.",
  "see_also": [
    "beta plane",
    "vorticity equation"
  ],
  "url": "https://mlchart.com/terminology/meteorology/planetary-vorticity-effect/"
}