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Response of Earth's Neutral Sheet to Reversals in the IMF By Component

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Response of Earth's Neutral Sheet to Reversals in the IMF By Component. / Case, Nathan Anthony; Grocott, Adrian; Haaland, S. et al.

In: Journal of Geophysical Research: Space Physics, Vol. 123, No. 10, 10.2018, p. 8206-8218.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Case, NA, Grocott, A, Haaland, S, Martin, C & Nagai, T 2018, 'Response of Earth's Neutral Sheet to Reversals in the IMF By Component', Journal of Geophysical Research: Space Physics, vol. 123, no. 10, pp. 8206-8218. https://doi.org/10.1029/2018JA025712

APA

Case, N. A., Grocott, A., Haaland, S., Martin, C., & Nagai, T. (2018). Response of Earth's Neutral Sheet to Reversals in the IMF By Component. Journal of Geophysical Research: Space Physics, 123(10), 8206-8218. https://doi.org/10.1029/2018JA025712

Vancouver

Case NA, Grocott A, Haaland S, Martin C, Nagai T. Response of Earth's Neutral Sheet to Reversals in the IMF By Component. Journal of Geophysical Research: Space Physics. 2018 Oct;123(10):8206-8218. Epub 2018 Oct 23. doi: 10.1029/2018JA025712

Author

Case, Nathan Anthony ; Grocott, Adrian ; Haaland, S. et al. / Response of Earth's Neutral Sheet to Reversals in the IMF By Component. In: Journal of Geophysical Research: Space Physics. 2018 ; Vol. 123, No. 10. pp. 8206-8218.

Bibtex

@article{4a7d83770261486c87140d4bce10d19f,
title = "Response of Earth's Neutral Sheet to Reversals in the IMF By Component",
abstract = "The By component of the interplanetary magnetic field (IMF) plays an integral part in the coupling of the solar wind‐magnetosphere‐ionosphere system. In this study, we use a suite of magnetospheric spacecraft, with data spanning nearly 25 years, to statistically investigate the control of the IMF By component on the neutral sheet. Past studies have identified that this thin layer of the magnetotail, which separates the oppositely directed magnetotail lobes, responds to reversals in the IMF By component. The proposed method for driving this response is through unequal flux loading in the magnetotail lobes, and we present lobe flow data from the Cluster mission, which suggests that this is indeed the case. We find that the neutral sheet responds in a statistical fashion, with a clear twist or rotation whose orientation depends upon the polarity of the IMF By component. Additionally, under individual analyses, we find the response time of the neutral sheet to IMF By reversals is much shorter than possible through the classical dayside reconnection driven picture. We find an average response time of between 10 and 20 min with little to no dependence on distance downtail. These results suggest that the neutral sheet responds to the IMF By component on multiple timescales.",
keywords = "neutral sheet, twist, IMF B y, reversals, statistical, response",
author = "Case, {Nathan Anthony} and Adrian Grocott and S. Haaland and Carley Martin and T. Nagai",
year = "2018",
month = oct,
doi = "10.1029/2018JA025712",
language = "English",
volume = "123",
pages = "8206--8218",
journal = "Journal of Geophysical Research: Space Physics",
issn = "2169-9402",
publisher = "Blackwell Publishing Ltd",
number = "10",

}

RIS

TY - JOUR

T1 - Response of Earth's Neutral Sheet to Reversals in the IMF By Component

AU - Case, Nathan Anthony

AU - Grocott, Adrian

AU - Haaland, S.

AU - Martin, Carley

AU - Nagai, T.

PY - 2018/10

Y1 - 2018/10

N2 - The By component of the interplanetary magnetic field (IMF) plays an integral part in the coupling of the solar wind‐magnetosphere‐ionosphere system. In this study, we use a suite of magnetospheric spacecraft, with data spanning nearly 25 years, to statistically investigate the control of the IMF By component on the neutral sheet. Past studies have identified that this thin layer of the magnetotail, which separates the oppositely directed magnetotail lobes, responds to reversals in the IMF By component. The proposed method for driving this response is through unequal flux loading in the magnetotail lobes, and we present lobe flow data from the Cluster mission, which suggests that this is indeed the case. We find that the neutral sheet responds in a statistical fashion, with a clear twist or rotation whose orientation depends upon the polarity of the IMF By component. Additionally, under individual analyses, we find the response time of the neutral sheet to IMF By reversals is much shorter than possible through the classical dayside reconnection driven picture. We find an average response time of between 10 and 20 min with little to no dependence on distance downtail. These results suggest that the neutral sheet responds to the IMF By component on multiple timescales.

AB - The By component of the interplanetary magnetic field (IMF) plays an integral part in the coupling of the solar wind‐magnetosphere‐ionosphere system. In this study, we use a suite of magnetospheric spacecraft, with data spanning nearly 25 years, to statistically investigate the control of the IMF By component on the neutral sheet. Past studies have identified that this thin layer of the magnetotail, which separates the oppositely directed magnetotail lobes, responds to reversals in the IMF By component. The proposed method for driving this response is through unequal flux loading in the magnetotail lobes, and we present lobe flow data from the Cluster mission, which suggests that this is indeed the case. We find that the neutral sheet responds in a statistical fashion, with a clear twist or rotation whose orientation depends upon the polarity of the IMF By component. Additionally, under individual analyses, we find the response time of the neutral sheet to IMF By reversals is much shorter than possible through the classical dayside reconnection driven picture. We find an average response time of between 10 and 20 min with little to no dependence on distance downtail. These results suggest that the neutral sheet responds to the IMF By component on multiple timescales.

KW - neutral sheet

KW - twist

KW - IMF B y

KW - reversals

KW - statistical

KW - response

U2 - 10.1029/2018JA025712

DO - 10.1029/2018JA025712

M3 - Journal article

VL - 123

SP - 8206

EP - 8218

JO - Journal of Geophysical Research: Space Physics

JF - Journal of Geophysical Research: Space Physics

SN - 2169-9402

IS - 10

ER -