Cluster observation of magnetohydrodynamic turbulence in the plasma sheet boundary layer
نویسندگان
چکیده
منابع مشابه
Magnetohydrodynamic turbulence: Observation and experiment
We provide a tutorial on the paradigms and tools of magnetohydrodynamic (MHD) turbulence. The principal paradigm is that of a turbulent cascade from large scales to small, resulting in power law behavior for the frequency power spectrum for magnetic fluctuations EBðf Þ. We will describe five useful statistical tools for MHD turbulence in the time domain: the temporal autocorrelation function, t...
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Kinetic cascade beyond magnetohydrodynamics of solar wind turbulence in two-dimensional hybrid simulations Statistical analysis of fluctuations and noise-driven transport in particle-in-cell simulations of plasma turbulence We provide a tutorial on the paradigms and tools of magnetohydrodynamic (MHD) turbulence. The principal paradigm is that of a turbulent cascade from large scales to small, r...
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Recently, observations from the Polar and Cluster satellites have indicated that largeamplitude kinetic Alfvén waves are observed throughout the plasma sheet, particularly at the plasma sheet boundary layers, during substorms. These waves may be directly produced by reconnection processes in the tail, or indirectly through linear or nonlinear mode conversion or by localized plasma flows in the ...
متن کاملPlanetary Boundary Layer Turbulence
In previous chapters boundary layers were evident as thin layers across which thermal, dynamic, and material properties of a free interior flow make a transition to their boundary values and/or boundary fluxes. In those cases the thinness of the boundary layer was typically a statement of the smallness of the relevant diffusivity; e.g., the depth h of the laminar Ekman boundary layer scales as ...
متن کاملSome properties of Alfvén waves: Observations in the tail lobes and the plasma sheet boundary layer
[1] We report properties of substorm-related, globally excited Alfvén waves on a temporal scale of 6 to 300 s (3.3 to 167 mHz) at geocentric distances between 5 and 6 RE. The waves were observed in the tail lobes and the plasma sheet boundary layer (PSBL) by the Polar satellite. In each region we made the following observations: (1) The tail lobe Alfvén waves started at substorm onset as determ...
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ژورنال
عنوان ژورنال: Earth, Planets and Space
سال: 2016
ISSN: 1880-5981
DOI: 10.1186/s40623-016-0442-0