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Shear driven waves in the induced magnetosphere of Mars
Fedorov, A.; Barabash, S.; Lundin, R. +12 more
We present measurements of oscillations in the electron density, ion density and ion velocity in the induced magnetosphere of Mars. The fundamental frequency of the oscillations is a few millihertz, but higher harmonics are present in the spectrum. The oscillations are observed in a region where there is a velocity shear in the plasma flow. The fu…
Simulation of zonal flow excitation by drift mode turbulence: applications to tokamaks and the magnetopause
Davies, J. A.; Vaivads, A.; Dunlop, M. W. +5 more
Recently, we investigated the interaction between broadband drift mode turbulence and zonal flows near the edge of a region of magnetized plasma (Trines et al 2005 Phys. Rev. Lett. 94 165002). Our simulation results showed the development of a zonal flow through the modulational instability of the drift wave distribution, as well as the existence …