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Plasma and Magnetic Field Turbulence in the Earth's Magnetosheath at Ion Scales
Rakhmanova, Liudmila; Riazantseva, Maria; Zastenker, Georgy
Crossing the Earth's bow shock is known to crucially affect solar wind plasma including changes in turbulent cascade. The present review summarizes results of more than 15 years of experimental exploration into magnetosheath turbulence. Great contributions to understanding turbulence development inside the magnetosheath was made by means of recent…
The Impact of Turbulence on Physics of the Geomagnetic Tail
Antonova, Elizaveta E.; Stepanova, Marina V.
There is a vast amount of evidence that suggests that the geomagnetic tail is like a turbulent wake behind an obstacle. Large-scale vortices in the wake are able to generate turbulent transport that takes place both along the plasma sheet, in the X and Y directions, and across the plasma sheet, in the Z direction. Thus, turbulent fluctuations in a…
Impact of foreshock transients on the flank magnetopause and magnetosphere and the ionosphere
Wang, Chih-Ping; Wang, Xueyi; Liu, Terry Z. +1 more
Mesoscale (on the scales of a few minutes and a few RE) magnetosheath and magnetopause perturbations driven by foreshock transients have been observed in the flank magnetotail. In this paper, we present the 3D global hybrid simulation results to show qualitatively the 3D structure of the flank magnetopause distortion caused by foreshock transients…
Stormtime energetics: Energy transport across the magnetopause in a global MHD simulation
Pulkkinen, Tuija I.; Toth, Gabor; Al Shidi, Qusai +1 more
Coupling between the solar wind and magnetosphere can be expressed in terms of energy transfer through the separating boundary known as the magnetopause. Geospace simulation is performed using the Space Weather Modeling Framework (SWMF) of a multi-ICME impact event on February 18-20, 2014 in order to study the energy transfer through the magnetopa…
Magnetic Field Reconstruction for a Realistic Multi-Point, Multi-Scale Spacecraft Observatory
Klein, K. G.; Verscharen, D.; Roberts, O. W. +3 more
Future in situ space plasma investigations will likely involve spatially distributed observatories comprised of multiple spacecraft, beyond the four and five spacecraft configurations currently in operation. Inferring the magnetic field structure across the observatory, and not simply at the observation points, is a necessary step towards characte…
Magnetohydrodynamic Turbulence in the Earth's Magnetotail from Observations and Global MHD Simulations
Lapenta, Giovanni; Goldstein, Melvyn L.; El-Alaoui, Mostafa +2 more
Magnetohydrodynamic (MHD) turbulent flows are found in the solar wind, the magnetosheath and the magnetotail plasma sheet. In this paper, we review both observational and theoretical evidence for turbulent flow in the magnetotail. MHD simulations of the global magnetosphere for southward interplanetary magnetic field (IMF) exhibit nested vortices …
Control of magnetopause flux rope topology by non-local reconnection
Eastwood, Jonathan P.; Mejnertsen, Lars; Chittenden, Jeremy P.
Dayside magnetic reconnection between the interplanetary magnetic field and the Earth's magnetic field is the primary mechanism enabling mass and energy entry into the magnetosphere. During favorable solar wind conditions, multiple reconnection X-lines can form on the dayside magnetopause, potentially forming flux ropes. These flux ropes move tail…
The Key Role of Cold Ionospheric Ions As a Source of Hot Magnetospheric Plasma and As a Driver of the Dynamics of Substorms and Storms
Glocer, A.; Moore, T. E.; Giles, B. L. +3 more
The solar wind has been seen as the major source of hot magnetospheric plasma since the early 1960's. More recent theoretical and observational studies have shown that the cold (few eV) polar wind and warmer polar cusp plasma that flow continuously upward from the ionosphere can be a very significant source of ions in the magnetosphere and can bec…