Physics
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufmsm51c0388z&link_type=abstract
American Geophysical Union, Fall Meeting 2004, abstract #SM51C-0388
Physics
2712 Electric Fields (2411), 2724 Magnetopause, Cusp, And Boundary Layers, 2760 Plasma Convection, 2784 Solar Wind/Magnetosphere Interactions
Scientific paper
We present in this paper a survey of the motion of flux transfer events using high resolution magnetic and electric field data from the Polar spacecraft. We have surveyed the magnetic field data during the three-year period from 2001 to 2003 when Polar skimmed the dayside magnetopause near its apogee and identified 67 encounters of the dayside magnetopause with evidence of flux transfer events (FTEs). For each FTE identified, we determine the local structure of the flux tube (including the helical magnetic structure, the axial orientation and the intensity of the 'core' field.) and its E × B convection velocity. We investigate how the orientation and motion of flux tubes depend on the IMF (especially the By component) and the location on the magnetopause. The results will provide information on the nature of time-varying reconnection that is responsible for the generation of FTEs, especially the location and orientation of the X-line. Our statistical results of FTEs will be discussed in terms of the above perspectives.
Le Guan
Pfaff Robert F.
Russell Christopher T.
Zheng Yuanlin
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