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A dynamo driven by zonal jets at the upper surface: applications to giant planets
giant planets upper surface
2011/9/1
We present a dynamo mechanism arising from the presence of barotropically unstable zonal jet currents in a spherical shell. The shear instability of the zonal flow develops in the form of a global Ros...
Anisotropic turbulence and zonal jets in rotating flows with a β-effect
Anisotropic turbulence zonal jets rotating flows β-effect
2009/11/9
Numerical studies of small-scale forced, two-dimensional turbulent flows on the surface of a rotating sphere have revealed strong large-scale anisotropization that culminates in the emergence of quasi...