Extreme Birkeland Currents Are More Likely During Geomagnetic Storms on the Dayside of the Earth
Extreme Birkeland Currents Are More Likely During Geomagnetic Storms on the Dayside of the Earth
复制标题
在地球白天的地磁风暴期间更有可能出现极端伯克兰电流
DOI:
10.1029/2023ja031946
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Coxon J
中科院分区:
文献类型:
--
作者:
Coxon J
We examine the statistical distribution of large‐scale Birkeland currents measured by the Active Magnetosphere and Planetary Electrodynamics Response Experiment in four unique categories of geomagnetic activity for the first time: quiet times, storm times, quiet‐time substorms, and storm‐time substorms. A novel method is employed to sort data into one of these four categories, and the categorizations are provided for future research. The mean current density is largest during substorms and its standard deviation is largest during geomagnetic storms. Current densities which are above a low threshold are more likely during substorms, but extreme currents are far more likely during geomagnetic storms, consistent with a paradigm in which geomagnetic storms represent periods of enhanced variability over quiet times. We demonstrate that extreme currents are most likely to flow within the Region 2 current during geomagnetic storms. This is unexpected in a paradigm of the current systems in which Region 1 current is generally larger.
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DOI:
10.1029/2020ja028665
发表时间:
2020-12
期刊:
Journal of Geophysical Research: Space Physics
影响因子:
--
作者:
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通讯作者:
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DOI:
10.1002/2015ja021343
发表时间:
2015-12
期刊:
Journal of Geophysical Research: Space Physics
影响因子:
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作者:
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通讯作者:
C. Forsyth;I. J. Rae;J. Coxon;M. Freeman;C. Jackman;Jesper Gjerloev;Jesper Gjerloev;A. Fazakerley
DOI:
10.1007/978-3-030-26732-2_7
发表时间:
2020
期刊:
ISSI Scientific Report Series
影响因子:
--
作者:
Waters, C.L.;Anderson, B. J.;Green, D. L.;Korth, H.;Barnes, R. J.;Vanhamäki, H.
通讯作者:
Vanhamäki, H.
DOI:
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发表时间:
2018
期刊:
Journal of Geophysical Research: Space Physics
影响因子:
--
作者:
B. Anderson;C. Olson;H. Korth;R. Barnes;C. Waters;S. Vines
通讯作者:
S. Vines
DOI:
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发表时间:
2001
期刊:
影响因子:
--
作者:
K. McWilliams;T. Yeoman;J. Sigwarth;L. Frank;M. Brittnacher
通讯作者:
M. Brittnacher