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A meteoroid penetrating the Earth’s atmosphere leaves behind a trail
of dense plasma embedded in the lower E/upper D-region ionosphere. While
radar measurements of meteor trail evolution have been c...
The characterization of diffusion tensor for mid-latitude ionospheric plasma
Ionosphere Diffusion tensor Electrical conductivity
2014/2/17
In this study, the relationship between diffusion and the electrical conductivity tensor is investigated by using the real geometry of the Earth’s magnetic field in the Northern Hemisphere for mid-lat...
Cosmic ray momentum diffusion in the presence of nonlinear Alfvén waves
Cosmic ray momentum diffusion nonlinear Alfvén waves
2009/11/16
The relation between the spatial diffusion coefficient along the magnetic field, kII, and the momentum diffusion coefficient, Dp, for relativistic cosmic ray particles is modelled using Monte Carlo si...
Energetic particle cross-field diffusion:Interaction with Magnetic Decreases (MDs)
Energetic particle cross-field diffusion Magnetic Decreases
2009/11/13
Magnetic field Decreases (MDs) are detected in the heliospheric polar regions. The MDs have minimum spatial scales sizes of 25 proton thermal gyroradii, and are typically bounded by tangential or rota...
Three-dimensional simulation of the electromagnetic ion/ion beam instability:cross field diffusion
Three-dimensional simulation electromagnetic ion/ion beam instability cross field diffusion
2009/11/13
In a system with at least one ignorable spatial dimension charged particles moving in fluctuating fields are tied to the magnetic field lines. Thus, in one-and two-dimensional simulations cross-field ...
Two-dimensional MHD model of the reconnection diffusion region
Two-dimensional MHD model reconnection diffusion region
2009/11/12
Magnetic reconnection is an important process providing a fast conversion of magnetic energy into thermal and kinetic plasma energy. In this concern, a key problem is that of the resistive diffusion r...
Turbulent thermal diffusion of aerosols in geophysics and in laboratory experiments
Turbulent thermal diffusion aerosols geophysics laboratory experiments
2009/11/11
We discuss a new phenomenon of turbulent thermal diffusion associated with turbulent transport of aerosols in the atmosphere and in laboratory experiments. The essence of this phenomenon is the appear...