Overview of Solar Wind–Magnetosphere–Ionosphere–Atmosphere Coupling and the Generation of Magnetospheric Currents

Milan, S. E. and Clausen, L. B.N. and Coxon, J. C. and Carter, J. A. and Walach, M. T. and Laundal, K. and Østgaard, N. and Tenfjord, P. and Reistad, J. and Snekvik, K. and Korth, H. and Anderson, B. J. (2017) Overview of Solar Wind–Magnetosphere–Ionosphere–Atmosphere Coupling and the Generation of Magnetospheric Currents. Space Science Reviews, 206 (1). pp. 547-573. ISSN 0038-6308

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Abstract

We review the morphology and dynamics of the electrical current systems of the terrestrial magnetosphere and ionosphere. Observations from the Active Magnetosphere and Planetary Electrodynamics Response Experiment (AMPERE) over the three years 2010 to 2012 are employed to illustrate the variability of the field-aligned currents that couple the magnetosphere and ionosphere, on timescales from minutes to years, in response to the impact of solar wind disturbances on the magnetosphere and changes in the level of solar illumination of the polar ionospheres. The variability is discussed within the context of the occurrence of magnetic reconnection between the solar wind and terrestrial magnetic fields at the magnetopause, the transport of magnetic flux within the magnetosphere, and the onset of magnetic reconnection in the magnetotail. The conditions under which the currents are expected to be weak, and hence minimally contaminate measurements of the internally-produced magnetic field of the Earth, are briefly outlined.

Item Type:
Journal Article
Journal or Publication Title:
Space Science Reviews
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1900/1912
Subjects:
ID Code:
86280
Deposited By:
Deposited On:
13 May 2017 02:35
Refereed?:
Yes
Published?:
Published
Last Modified:
27 Oct 2020 07:14