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Self-Consistent Magnetosphere-Ionosphere CouplingA self-consistent ring current (RC) model has been developed that couples electron and ion magnetospheric dynamics with the calculation of the electric field. Two new features were taken into account in order to close the self-consistent magnetosphere-ionosphere coupling loop. First, in addition to the RC ions, we have solved an electron kinetic equation in our model. Second, using the relation of Galand and Richmond, we have calculated the height integrated ionospheric conductances as a function of the precipitated high energy magnetospheric electrons and ions that are produced by our model. To validate the results of our model we simulate the magnetic storm of May 2, 1986, a storm that has been comprehensively studied by Fok et al., and have compared our results with different theoretical approaches. The self-consistent inclusion of the hot electrons and their effect on the conductance results in deeper penetration of the magnetospheric electric field. In addition, a slight westward rotation of the potential pattern (compared to previous self-consistent results) is evident in the inner magnetosphere. These effects change the hot plasma distribution, especially by allowing increased access of plasma sheet ions and electrons to low L shells.
Document ID
20030054445
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Six, N. Frank
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Khazanov, G. V.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Newman, T. S.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Liemohn, M. W.
(Michigan Univ. Ann Arbor, MI, United States)
Fok, M. C.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Spiro, R. W.
(Rice Univ. Houston, TX, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2002
Subject Category
Geophysics
Meeting Information
Meeting: Fall AGU 2002 Meeting
Location: San Francisco, CA
Country: United States
Start Date: December 5, 2002
End Date: December 11, 2002
Sponsors: American Geophysical Union
Distribution Limits
Public
Copyright
Other

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