Spatial and temporal signatures of flux transfer events in global simulations of magnetopause dynamics

Details Spatial and temporal signatures of flux transfer events in global simulations of magnetopause dynamics Spatial and temporal signatures of flux transfer events in global simulations of magnetopause dynamics

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsm53b..01k&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SM53B-01

Physics

Plasma Physics

[2724] Magnetospheric Physics / Magnetopause And Boundary Layers, [2784] Magnetospheric Physics / Solar Wind/Magnetosphere Interactions, [7835] Space Plasma Physics / Magnetic Reconnection, [7959] Space Weather / Models

Scientific paper

Flux transfer events (FTEs) were originally identified by transient bipolar variations of the magnetic field component normal to the nominal magnetopause centered on enhancements in the total magnetic field strength. Recent Cluster and THEMIS multi-point measurements provided a wide range of signatures that are interpreted as evidence for FTE passage (e.g., crater FTEs, traveling magnetic erosion regions). We use the global magnetohydrodynamic (MHD) code BATS-R-US developed at the University of Michigan to model the global three-dimensional structure and temporal evolution of FTEs during multi-spacecraft magnetopause crossing events. Comparison of observed and simulated signatures and sensitivity analysis of the results to the probe location will be presented. We will demonstrate a variety of observable signatures in magnetic field profile that depend on space probe location with respect to the FTE passage. The global structure of FTEs will be illustrated using advanced visualization tools developed at the Community Coordinated Modeling Center.

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