Comparer des méthodes

	Équation quasi-géostrophique de l'oméga	Vent géostrophique	Vent thermique
Domaine	Météorologie	Météorologie	Météorologie
Famille	Process / pipeline	Process / pipeline	Process / pipeline
Année d'origine	1970s	1857	1920s
Auteur d'origine	Trenberth, Omaga	Buys Ballot, Coriolis	Jacobbian insights from geostrophic flow
Type	Diagnostic equation for vertical motion	Wind balance principle	Wind-temperature relationship
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.	Holton, J. R. (2004). An Introduction to Dynamic Meteorology (4th ed.). Academic Press.
Alias	QG omega equation, Quasi-geostrophic dynamics, Vertical motion prediction	Geostrophic wind, Geostrophic balance, Geostrophic approximation	Thermal wind, Vertical wind shear, Barotropic
Apparentées	3	3	3
Résumé	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.	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 thermal wind relationship is a fundamental meteorological principle that links vertical wind shear to horizontal temperature gradients. It states that wind speed increases with height in the direction of warming—a direct consequence of hydrostatic and geostrophic balance combined with the ideal gas law.