Comparer des méthodes

	Vent géostrophique	Équation quasi-géostrophique de l'oméga
Domaine	Météorologie	Météorologie
Famille	Process / pipeline	Process / pipeline
Année d'origine	1857	1970s
Auteur d'origine	Buys Ballot, Coriolis	Trenberth, Omaga
Type	Wind balance principle	Diagnostic equation for vertical motion
Source fondatrice	Holton, J. R. (2004). An Introduction to Dynamic Meteorology (4th ed.). Academic Press.	Holton, J. R. (2004). An Introduction to Dynamic Meteorology (4th ed.). Academic Press.
Alias	Geostrophic wind, Geostrophic balance, Geostrophic approximation	QG omega equation, Quasi-geostrophic dynamics, Vertical motion prediction
Apparentées	3	3
Résumé	Geostrophic wind balance is a fundamental concept in meteorology that describes the balance between the pressure gradient force and the Coriolis force in large-scale atmospheric flow. When this balance is achieved, wind blows parallel to isobars without acceleration—a condition observed in the free atmosphere away from the equator and surface boundary layer.	The quasi-geostrophic (QG) omega equation is a fundamental diagnostic equation in synoptic meteorology that relates vertical motion (omega = dP/dt) to horizontal temperature and vorticity fields. It predicts where air rises and sinks based on the geostrophic flow structure without explicitly solving for vertical velocity.