Compression of the Earth's magnetotail by interplanetary shocks directly drives transient magnetic flux closure

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Compression of the Earth's magnetotail by interplanetary shocks directly drives transient magnetic flux closure. / Hubert, B; Palmroth, M; Laitinen, TV; Janhunen, P; Milan, SE; Grocott, A; Cowley, SWH; Pulkkinen, T; Gerard, JC.

In: Geophysical Research Letters, Vol. 33, No. 10, 10105, 31.05.2006.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Hubert, B, Palmroth, M, Laitinen, TV, Janhunen, P, Milan, SE, Grocott, A, Cowley, SWH, Pulkkinen, T & Gerard, JC 2006, 'Compression of the Earth's magnetotail by interplanetary shocks directly drives transient magnetic flux closure' Geophysical Research Letters, vol. 33, no. 10, 10105. https://doi.org/10.1029/2006GL026008

APA

Hubert, B., Palmroth, M., Laitinen, TV., Janhunen, P., Milan, SE., Grocott, A., ... Gerard, JC. (2006). Compression of the Earth's magnetotail by interplanetary shocks directly drives transient magnetic flux closure. Geophysical Research Letters, 33(10), [10105]. https://doi.org/10.1029/2006GL026008

Vancouver

Author

Hubert, B ; Palmroth, M ; Laitinen, TV ; Janhunen, P ; Milan, SE ; Grocott, A ; Cowley, SWH ; Pulkkinen, T ; Gerard, JC. / Compression of the Earth's magnetotail by interplanetary shocks directly drives transient magnetic flux closure. In: Geophysical Research Letters. 2006 ; Vol. 33, No. 10.

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@article{4794bc0abd4646469efa5236192ba3ae,
title = "Compression of the Earth's magnetotail by interplanetary shocks directly drives transient magnetic flux closure",
abstract = "We use a novel method to evaluate the global opening and closure of magnetic flux in the terrestrial system, and to analyse two interplanetary shock passages that occurred during magnetically quiet periods. We find that, even under these quiet conditions, where the amount of open flux was already low, the compression of the magnetotail by the shocks still created intense but short-lived bursts of flux closure reaching similar to 130 kV, comparable to values obtained shortly after a substorm onset, although no expansion phase developed. The results, supported by a global MHD simulation of the space environment, point to a trigger mechanism of flux closure directly driven by the solar wind compression, independent of the usual substorm expansion phase process.",
keywords = "RECONNECTION, MAGNETOSPHERE, DYNAMICS",
author = "B Hubert and M Palmroth and TV Laitinen and P Janhunen and SE Milan and A Grocott and SWH Cowley and T Pulkkinen and JC Gerard",
year = "2006",
month = "5",
day = "31",
doi = "10.1029/2006GL026008",
language = "English",
volume = "33",
journal = "Geophysical Research Letters",
issn = "0094-8276",
number = "10",

}

RIS - Download

TY - JOUR

T1 - Compression of the Earth's magnetotail by interplanetary shocks directly drives transient magnetic flux closure

AU - Hubert, B

AU - Palmroth, M

AU - Laitinen, TV

AU - Janhunen, P

AU - Milan, SE

AU - Grocott, A

AU - Cowley, SWH

AU - Pulkkinen, T

AU - Gerard, JC

PY - 2006/5/31

Y1 - 2006/5/31

N2 - We use a novel method to evaluate the global opening and closure of magnetic flux in the terrestrial system, and to analyse two interplanetary shock passages that occurred during magnetically quiet periods. We find that, even under these quiet conditions, where the amount of open flux was already low, the compression of the magnetotail by the shocks still created intense but short-lived bursts of flux closure reaching similar to 130 kV, comparable to values obtained shortly after a substorm onset, although no expansion phase developed. The results, supported by a global MHD simulation of the space environment, point to a trigger mechanism of flux closure directly driven by the solar wind compression, independent of the usual substorm expansion phase process.

AB - We use a novel method to evaluate the global opening and closure of magnetic flux in the terrestrial system, and to analyse two interplanetary shock passages that occurred during magnetically quiet periods. We find that, even under these quiet conditions, where the amount of open flux was already low, the compression of the magnetotail by the shocks still created intense but short-lived bursts of flux closure reaching similar to 130 kV, comparable to values obtained shortly after a substorm onset, although no expansion phase developed. The results, supported by a global MHD simulation of the space environment, point to a trigger mechanism of flux closure directly driven by the solar wind compression, independent of the usual substorm expansion phase process.

KW - RECONNECTION

KW - MAGNETOSPHERE

KW - DYNAMICS

U2 - 10.1029/2006GL026008

DO - 10.1029/2006GL026008

M3 - Article

VL - 33

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 10

M1 - 10105

ER -

ID: 2605988