Physics
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsm21a0315g&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #SM21A-0315
Physics
2730 Magnetosphere: Inner, 2778 Ring Current, 2784 Solar Wind/Magnetosphere Interactions, 7954 Magnetic Storms (2788)
Scientific paper
Geomagnetic storms in the Earth's magnetosphere have been classified as due to solar wind dominated by interplanetary coronal mass ejections (ICMEs) or by corotating interaction regions (CIRs). The different characteristics of these storms have been determined primarily from measurements at geosynchronous orbit and ground magnetometers. Borovsky and Denton [2006] have identified 21 differences between ICME and CIR driven storms. We present ENA images and deconvolved proton distributions from MENA and HENA onboard the IMAGE satellite for storms during 2004. The density, temperature, and pressure of the trapped ring current protons with energies from a few keV to more than 30 keV for the inner magnetosphere are presented during various phases of the two kinds of storms. Differences between ICME and CIR driven storms are affirmed and/or modified based upon these observations.
C:son Brandt Pontus
Grimes E.
Jahn J.-
Miller Kathryn M.
Perez Joseph D.
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