地球与行星物理论评（中英文）2025，Vol.56Issue(6)：689-698,10.DOI:10.19975/j.dqyxx.2024-044
新磨村滑坡地磁扰动现象时序特征分析
Characterisation of the temporal sequence of geomagnetic fluctuation of Xinmocun landslide
摘要
Abstract
Selecting an appropriate index is essential for the scientific and effective early warning of land-slides.To explore the potential use of geomagnetic fluctuation signals as an early warning index for landslides,this study investigates the characteristics of geomagnetic fluctuations associated with landslides.The Xinmocun land-slide is chosen as the case study.Using cross-correlation analysis,we examine the data correlation between obser-vation stations near the landslide and count the frequency of disturbance signals during the observation period to identify geomagnetic disturbance phenomena associated with the landslide.The study aims to elucidate the charac-teristics and patterns of geomagnetic disturbance signals related to landslides.The results reveal that significant geomagnetic disturbances were observed before the destabilization of the Xinmocun landslide.These disturbances predominantly occurred in the main sliding direction of the landslide and were marked by the presence of sustained high cross-correlation(CC)values(yellow,CC>0.45)in areas near the landslide point.These geomagnetic disturb-ance signals persisted for a prolonged period before and after the landslide event,displaying a pattern of frequent signals prior to instability,rapid reduction at the point of landslide failure,and strong correlation with the deforma-tion and damage characteristics of the landslide.The findings suggest that geomagnetic disturbance signals can serve as a novel indicator for landslide monitoring.This approach offers the potential to identify the location of po-tential landslides,assess the evolutionary stages of sudden landslides,and enable effective early warning.Thus,the geomagnetic disturbance signals provide a promising tool for enhancing landslide prediction and risk management strategies.关键词
新磨村滑坡/地磁扰动/互相关计算/滑坡监测预警Key words
Xinmocun landslide/geomagnetic fluctuation/cross-correlation calculation/landslide monitoring and early warning分类
天文与地球科学引用本文复制引用
陈飞,陈界宏,王飞,毛志强,艾萨·伊斯马伊力,刘彦麟..新磨村滑坡地磁扰动现象时序特征分析[J].地球与行星物理论评（中英文）,2025,56(6):689-698,10.基金项目
四川省自然科学基金资助项目(2022NSFSCO411)Supported by the Sichuan Natural Science Foundation Project(Grant No.2022NSFSCO411) （2022NSFSCO411）
