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  • Hamrin, Maria, et al. (author)
  • The role of the inner tail to midtail plasma sheet in channeling solar wind power to the ionosphere
  • 2012
  • In: Journal of Geophysical Research. - 0148-0227 .- 2156-2202. ; 117:A6, s. A06310-
  • Journal article (peer-reviewed)abstract
    • In this article we use Cluster power density (E . J) data from 2001, 2002, and 2004 to investigate energy conversion and transfer in the plasma sheet. We show that a southward IMF B-z is favorable for plasma sheet energy conversion, and that there is an increased particle and Poynting flux toward the Earth at times when Cluster observes an enhanced energy conversion in the plasma sheet. Conversion from electromagnetic to kinetic energy is increasingly dominant farther down-tail, while the generation of electromagnetic power from kinetic energy becomes important toward the Earth with a maximum at roughly 10 R-E. By linking observations of the key quantity E . J to observations of the solar wind input and earthward energy flux, our results demonstrate the role of the inner tail to midtail plasma sheet as a mediator between the solar wind energy input into the magnetosphere and the auroral dissipation in the ionosphere.
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Type of publication
journal article (1)
Type of content
peer-reviewed (1)
Author/Editor
Dandouras, I. (1)
Buchert, Stephan (1)
André, Mats (1)
Klecker, B. (1)
Hamrin, Maria (1)
Marghitu, O. (1)
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Norqvist, Patrik (1)
Kistler, LM (1)
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University
Umeå University (1)
Uppsala University (1)
Language
English (1)
Research subject (UKÄ/SCB)
Natural sciences (1)
Year
2012 (1)

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