Severe Distortion of the Apparent Resistivity Induced by the Super Geomagnetic Storm in May 2024

IF 4.6 1区地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY

Geophysical Research Letters Pub Date : 2025-04-22 DOI:10.1029/2025GL115104

Xin Zhang, Tao Xie, Qing Ye, Liangjun Yan, Xiaoping Wu

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引用次数: 0

Abstract

The potential hazard of geomagnetically induced current (GIC) in metallic pipelines caused by space weather events is a widely discussed topic. On 10–11 May 2024, a super geomagnetic storm with Kp = 9 comparable to the Halloween event in 2003 occurred. The storm induced GIC caused severe distortion in apparent resistivity is a novel phenomenon. Here, we studied an apparent resistivity observation network of China, which was severely affected by the GIC. The impact reached over 15 times the static daily variation, inducing the apparent resistivity values to be significantly distorted, with 35 of 70 stations observing resistivity changes over 1%. Additionally, some stereo observations had significant responses and appeared time-delay pattern reaching 24 hr. The induced polarization effect may involve and release the charges slowly, then delay the response pattern of apparent resistivity under the super storm. Effectively it is the first academic report of the GIC effect in apparent resistivity.

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2024年5月超级地磁风暴引起的视电阻率严重畸变

空间天气事件对金属管道产生地磁感应电流的潜在危害是一个被广泛讨论的话题。2024年5月10日至11日，发生了一次与2003年万圣节事件相当的Kp = 9的超级地磁风暴。风暴诱发的GIC引起的视电阻率严重畸变是一种新现象。本文以中国一个视电阻率观测网为研究对象，该观测网受GIC影响严重。冲击达到静态日变化的15倍以上，导致视电阻率值明显扭曲，70个站点中有35个观测到电阻率变化超过1%。此外，部分立体观测有明显的响应，并出现24小时的时间延迟模式。诱导极化效应会使电荷的吸收和释放缓慢，从而延迟了超级风暴下视电阻率的响应模式。实际上，这是第一个关于视电阻率中GIC效应的学术报道。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Geophysical Research Letters 地学-地球科学综合

CiteScore

9.00

自引率

9.60%

发文量

1588

审稿时长

2.2 months

期刊介绍： Geophysical Research Letters (GRL) publishes high-impact, innovative, and timely research on major scientific advances in all the major geoscience disciplines. Papers are communications-length articles and should have broad and immediate implications in their discipline or across the geosciences. GRLmaintains the fastest turn-around of all high-impact publications in the geosciences and works closely with authors to ensure broad visibility of top papers.