Mass Transport at the Magnetospheric Flanks Associated with Three-Dimensional Kelvin- Helmholtz Modes

Details Mass Transport at the Magnetospheric Flanks Associated with Three-Dimensional Kelvin- Helmholtz Modes Mass Transport at the Magnetospheric Flanks Associated with Three-Dimensional Kelvin- Helmholtz Modes

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsm33b0365o&link_type=abstract

American Geophysical Union, Fall Meeting 2006, abstract #SM33B-0365

Physics

2411 Electric Fields (2712), 2431 Ionosphere/Magnetosphere Interactions (2736), 2704 Auroral Phenomena (2407), 7835 Magnetic Reconnection (2723, 7526), 7859 Transport Processes

Scientific paper

Observations demonstrate the entry of magnetosheath material into the magnetotail for extended periods of northward IMF. A promising explanation for this transport is magnetic reconnection forced in the twisted magnetic field of Kelvin-Helmholtz waves at the magnetospheric flanks. The process has been investigated mostly through two-dimensional simulations using a variety of plasma approximations. Here we will present new results that address the Kelvin-Helmholtz induced transport within a three-dimensional geometry. The model includes line tying of magnetic flux on the magnetospheric side. We will present a discussion of the three-dimensional reconnection processes that generate the mass transport from the magnetosheath into the magnetosphere. Particular focus will be given to the questions of plasma mixing during the process. We also investigate the dependence of the three-dimensional Kelvin-Helmholtz mode and the associated mass transport on the direction of the magnetosheath magnetic field and the wave length of the mode.

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