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Magnetic Flux Circulation During Dawn-Dusk Oriented Interplanetary Magnetic FieldMagnetic flux circulation is a primary mode of energy transfer from the solar wind into the ionosphere and inner magnetosphere. For southward interplanetary magnetic field (IMF), magnetic flux circulation is described by the Dungey cycle (dayside merging, night side reconnection, and magnetospheric convection), and both the ionosphere and inner magnetosphere receive energy. For dawn-dusk oriented IMF, magnetic flux circulation is not well understood, and the inner magnetosphere does not receive energy. Several models have been suggested for possible reconnection patterns; the general pattern is: dayside merging; reconnection on the dayside or along the dawn/dusk regions; and, return flow on dayside only. These models are consistent with the lack of energy in the inner magnetosphere. We will present evidence that the Dungey cycle does not explain the energy transfer during dawn-dusk oriented IMF. We will also present evidence of how magnetic flux does circulate during dawn-dusk oriented IMF, specifically how the magnetic flux reconnects and circulates back.
Document ID
20110008573
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Mitchell, E. J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Lopez, R. E. (Texas Univ. Arlington, TX, United States)
Fok, M.-C. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Deng, Y. (Texas Univ. Arlington, TX, United States)
Wiltberger, M. (National Center for Atmospheric Research Boulder, CO, United States)
Lyon, J. (Dartmouth Coll. Hanover, NH, United States)
Date Acquired
August 25, 2013
Publication Date
December 16, 2010
Subject Category
Geophysics
Meeting Information
Meeting: Poser presentation at the American Geophysical Union Fall Meeting 2010
Location: San Francisco, CA
Country: United States
Start Date: December 16, 2010
Distribution Limits
Public
Copyright
Public Use Permitted.

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