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Global Auroral Energy Deposition during Substorm Onset Compared with Local Time and Solar Wind IMF ConditionsThe global images made by the Ultraviolet Imager (UVI) aboard the IASTP/Polar Satellite are used to derive the global auroral energy deposited in the ionosphere resulting from electron precipitation. During a substorm onset, the energy deposited and its location in local time are compared to the solar wind IMF conditions. Previously, insitu measurements of low orbiting satellites have made precipitating particle measurements along the spacecraft track and global images of the auroral zone, without the ability to quantify energy parameters, have been available. However, usage of the high temporal, spatial, and spectral resolution of consecutive UVI images enables quantitative measurement of the energy deposited in the ionosphere not previously available on a global scale. Data over an extended period beginning in January 1997 will be presented.
Document ID
19990104340
Acquisition Source
Marshall Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Spann, J. F.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Brittnacher, M.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Fillingim, M. O.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Germany, G. A.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Parks, G. K.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 1998
Subject Category
Geophysics
Meeting Information
Meeting: Physics of Space Plasmas
Location: Lisbon
Country: Portugal
Start Date: June 20, 1998
End Date: July 5, 1998
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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