Substorms and Solar Eclipses: A Mutual Information Based Study
Substorms and Solar Eclipses: A Mutual Information Based Study
复制标题
DOI：
10.1029/2023gl106432
复制
发表时间：
2023-12
影响因子：
5.2
通讯作者：
S. Coyle;J. B. H. Baker;S. Chakraborty;M. Hartinger;M. P. Freeman;C. Clauer;Z. Xu;D. R. Weimer
中科院分区：
文献类型：
--
作者：
S. Coyle;J. B. H. Baker;S. Chakraborty;M. Hartinger;M. P. Freeman;C. Clauer;Z. Xu;D. R. Weimer
日食提供了一个罕见的一瞥电离层电动力学对磁层的影响，独立于其他充分研究的季节性影响。尽管经过几十年的研究，我们仍然没有一个完整的描述的条件，地磁亚暴的爆发。我们在此提出了一个基于互信息的研究，以前发表的亚暴爆发和过去二十年的日食，这表明共同发生的可能性大于随机机会。对这种关系的一个合理解释表明，日食期间电离层电导率的突然波动可能会影响亚暴启动的磁层先决条件。虽然机制尚不清楚，但这项研究提供了强有力的证据，证明亚暴爆发和日食之间存在联系。
Solar eclipses present a rare glimpse into the impact of ionospheric electrodynamics on the magnetosphere independent of other well studied seasonal influences. Despite decades of study, we still do not have a complete description of the conditions for geomagnetic substorm onset. We present herein a mutual information based study of previously published substorm onsets and the past two decades of eclipses which indicates the likelihood of co‐occurrence is greater than random chance. A plausible interpretation for this relation suggests that the abrupt fluctuations in ionospheric conductivity during an eclipse may influence the magnetospheric preconditions of substorm initiation. While the mechanism remains unclear, this study presents strong evidence of a link between substorm onset and solar eclipses.