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| Vent géostrophique× | Inversion de la vorticité potentielle× | |
|---|---|---|
| Domaine | Météorologie | Météorologie |
| Famille | Process / pipeline | Process / pipeline |
| Année d'origine≠ | 1857 | 1985 |
| Auteur d'origine≠ | Buys Ballot, Coriolis | Haynes, McIntyre, Hoskins |
| Type≠ | Wind balance principle | Diagnostic inversion method |
| Source fondatrice≠ | Holton, J. R. (2004). An Introduction to Dynamic Meteorology (4th ed.). Academic Press. link ↗ | Haynes, P., & McIntyre, M. E. (1987). On the evolution of vorticity and potential vorticity in the atmosphere. Journal of the Atmospheric Sciences, 44(5), 828-841. link ↗ |
| Alias | Geostrophic wind, Geostrophic balance, Geostrophic approximation | PV inversion, Potential vorticity, PV thinking |
| 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. | Potential vorticity (PV) inversion is a diagnostic technique that reconstructs atmospheric wind and pressure fields from the spatial distribution of potential vorticity. This method assumes that, in a geostrophically balanced atmosphere, the PV field uniquely determines the balanced circulation around anomalies. |
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