Physics
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsm23a1686a&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #SM23A-1686
Physics
2700 Magnetospheric Physics (6939), 2723 Magnetic Reconnection (7526, 7835), 2731 Magnetosphere: Outer, 2784 Solar Wind/Magnetosphere Interactions
Scientific paper
We have begun an investigation of the formation of the dayside low latitude boundary layer under different solar wind conditions using data from the THEMIS spacecraft. We present two cases of magnetopause/LLBL interface crossings made by the five spacecraft; one under long lasting northward IMF and a second for a period of southward IMF. All spacecraft during these observations traversed the day side magnetosphere in a string-of-pearls configuration with the farthest distance between spacecraft less than ~2 RE. The sequence of observations from spacecraft, as they crossed the magnetopause, shows the development of a highly structured boundary layer regardless of the polarity of the IMF. We discuss possible scenarios for the development of such structured boundary layers, including low latitude reconnection under northward IMF as well as double reconnection in opposite hemispheres.
Avanov Levon A.
Chandler Michael O.
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