Physics
Scientific paper
May 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusmsm43b..03b&link_type=abstract
American Geophysical Union, Spring Meeting 2005, abstract #SM43B-03
Physics
2700 Magnetospheric Physics, 2730 Magnetosphere: Inner, 2740 Magnetospheric Configuration And Dynamics, 2778 Ring Current, 2788 Storms And Substorms
Scientific paper
Global Energetic Neutral Atom (ENA) images of the Hydrogen and Oxygen ring current in the 10-200 keV range have been obtained by IMAGE/HENA for five years. Approximately 40 storms have been succesfully imaged. Over the years a constrained linear inversion technique has been developed that can retrieve the equatorial ring current ion distributions from the ENA images. It uses the Tsyganenko [2003] magnetic field model and assumes pitch-angle distributions based on in-situ data. We investigate the general morphology of the ring current during storm times with special attention to the question of how much the storm-time substorm injections contribute to the ring current pressure. We discuss and compare observations with ring current models.
C:son Brandt Pontus
DeMajistre Robert
Fok M.-
Ganushkina Natalia
Mitchell Donald G.
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