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Overview of solar wind–magnetosphere–ionosphere–atmosphere coupling and the generation of magnetospheric currents

Overview of solar wind–magnetosphere–ionosphere–atmosphere coupling and the generation of magnetospheric currents
Overview of solar wind–magnetosphere–ionosphere–atmosphere coupling and the generation of magnetospheric currents
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.
0038-6308
547-573
Milan, S.E.
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Clausen, L.B.N.
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Coxon, J.C.
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Carter, J.A.
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Walach, M.-T.
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Laundal, K.
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Østgaard, N.
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Tenfjord, P.
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Reistad, J.
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Snekvik, K.
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Korth, H.
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Anderson, B.J.
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Milan, S.E.
4495fdee-b600-43e5-99f7-6193a849b7f5
Clausen, L.B.N.
7ab01029-f55b-431b-911e-8e0f599ef534
Coxon, J.C.
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Carter, J.A.
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Walach, M.-T.
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Laundal, K.
28e9469c-e347-465f-8b35-9727929ecc39
Østgaard, N.
199fd502-c30a-465e-975e-c2be36a273ac
Tenfjord, P.
070779de-618e-4df2-a427-42dd5d10e5b2
Reistad, J.
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Snekvik, K.
ac325d5e-3ba8-4e2c-93eb-745ebae7e445
Korth, H.
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Anderson, B.J.
8b69d978-f1e7-45bb-acab-f426bfd35296

Milan, S.E., Clausen, L.B.N., Coxon, J.C., Carter, J.A., Walach, M.-T., Laundal, K., Østgaard, N., Tenfjord, P., Reistad, J., Snekvik, K., 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 (1-4), 547-573. (doi:10.1007/s11214-017-0333-0).

Record type: Article

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.

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10.1007%2Fs11214-017-0333-0 - Version of Record
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Submitted date: 10 May 2016
Accepted/In Press date: 17 January 2017
e-pub ahead of print date: 1 February 2017
Published date: March 2017

Identifiers

Local EPrints ID: 417610
URI: https://eprints.soton.ac.uk/id/eprint/417610
ISSN: 0038-6308
PURE UUID: b6d0b9f3-759f-4d26-be64-601e209d922c
ORCID for J.C. Coxon: ORCID iD orcid.org/0000-0002-0166-6854

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Date deposited: 07 Feb 2018 17:30
Last modified: 03 Dec 2019 01:34

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