On the interaction between jets/fronts and vortices
Thibault Jougla
(LEGI Grenoble & St Andrews University)
| Quand ? |
Le 07/11/2017, de 10:45 à 12:00 |
|---|---|
| Où ? | Centre Blaise Pascal |
| Participants |
Thibault Jougla |
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Planetary atmospheres of the solar system, such as Jupiter, Saturne and the Earth, have well-organised bands following latitudes. These bands are separated by sharp currents flowing around planets, called jets or zonal currents (zonal means following latitudes). Jupiter is a bit special, it has jets and persistant vortices in its apparent atmosphere. A vortex is a cyclone or an anti-cyclone, an air mass spinning around itself. On Jupiter, jets and vortices coexist, our goal is to understand why and how. Understand the dynamics of jets and vortices will allow to better understand large-scale oceanic and atmospheric dynamics. I will first talk about the geophysical context and next focus on our double approach: numerical and experimental.