The northward IMF magnetosphere
The northward IMF magnetosphere
The manner in which the Earth’s magnetosphere responds to the solar wind is highly dependent upon the orientation of the interplanetary magnetic field (IMF), particularly the north-south (BZ) component. As most auroral and geomagnetic activity occurs when the IMF is southward (or weakly northward, but dominated by the dawn- dusk [BY] component), it is perhaps unsurprising that these conditions have received the most attention. However, when the IMF is more strongly northward (BZ > 0 and BZ > |BY|), magnetospheric dynamics (e.g. magnetic reconnection and auroral activity) move to higher latitudes; certain aspects of this activity are much more poorly understood than their southward IMF counterparts. In this chapter, we provide a review of the historical context and current understanding of the behavior of the Earth’s magnetosphere during periods of northward IMF, and outline some current controversies and future directions of research.
auroral response, Earth’s magnetosphere, geomagnetic activity, interplanetary magnetic field, magnetospheric dynamics, solar wind-magnetosphere coupling
293-309
Fear, Robert C.
8755b9ed-c7dc-4cbb-ac9b-56235a0431ab
23 April 2021
Fear, Robert C.
8755b9ed-c7dc-4cbb-ac9b-56235a0431ab
Fear, Robert C.
(2021)
The northward IMF magnetosphere.
In,
Maggiolo, Romain, André, Nicolas, Hasegawa, Hiroshi, Welling, Daniel T., Zhang, Yongliang and Paxton, Larry J.
(eds.)
Magnetospheres in the Solar System.
Wiley, .
(doi:10.1002/9781119815624.ch19).
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Book Section
Abstract
The manner in which the Earth’s magnetosphere responds to the solar wind is highly dependent upon the orientation of the interplanetary magnetic field (IMF), particularly the north-south (BZ) component. As most auroral and geomagnetic activity occurs when the IMF is southward (or weakly northward, but dominated by the dawn- dusk [BY] component), it is perhaps unsurprising that these conditions have received the most attention. However, when the IMF is more strongly northward (BZ > 0 and BZ > |BY|), magnetospheric dynamics (e.g. magnetic reconnection and auroral activity) move to higher latitudes; certain aspects of this activity are much more poorly understood than their southward IMF counterparts. In this chapter, we provide a review of the historical context and current understanding of the behavior of the Earth’s magnetosphere during periods of northward IMF, and outline some current controversies and future directions of research.
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Published date: 23 April 2021
Keywords:
auroral response, Earth’s magnetosphere, geomagnetic activity, interplanetary magnetic field, magnetospheric dynamics, solar wind-magnetosphere coupling
Identifiers
Local EPrints ID: 491567
URI: http://eprints.soton.ac.uk/id/eprint/491567
PURE UUID: a78d4576-5a22-499d-977b-9afcaae7c958
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Date deposited: 26 Jun 2024 16:33
Last modified: 27 Jun 2024 01:45
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Contributors
Editor:
Romain Maggiolo
Editor:
Nicolas André
Editor:
Hiroshi Hasegawa
Editor:
Daniel T. Welling
Editor:
Yongliang Zhang
Editor:
Larry J. Paxton
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