摘要
近年来,作者们经过长期的分析研究后发现,采用迭代法分析电离层数据时获取的电离层TEC异常与中强地震发生具有较好的空间对应关系,并根据总结的异常特征在地震中长期监测预报方面取得了一定的进展。本文在迭代法分析预报确定异常区域的基础上,采用滑动四分位法对预测区域发生的中强地震前后短时间序列内的电离层TEC数据进行分析,剔除干扰因素后找到较为明显的电离层TEC变化异常。综合利用两种分析方法判断中强地震前后电离层TEC异常,从而为地震前兆研究提供一个新的思路。
In recent years,after long-term analysis and research,the authors found that the ionospheric TEC anomaly obtained using the iterative method to analyze the ionospheric data has a good spatial correspondence with the occurrence of medium and strong earthquakes.Some progress has been made in the medium and long term earthquake monitoring and prediction according to the summarized anomaly characteristics.In this paper,the iterative method is used to analyze and predict anomalous regions.The sliding interquartile method is used to analyze the ionospheric TEC data in the short time series before and after moderate earthquakes in the predicted region.After removing the interference factors,obvious anomalies of ionospheric TEC variation are found.The two methods are used to judge the TEC anomalies in the ionosphere before and after moderate earthquakes,so as to provide a new idea for the study of earthquake precursors.
作者
王刚
廖洪月
唐好丛
Wang Gang;Liao Hongyue;Tang Haocong(Xi’an Earthquake Monitoring Center,Xi’an 710007;Xi’an Earthquake Agency,Xi’an 710007)
出处
《地震科学进展》
2021年第6期266-273,共8页
Progress in Earthquake Sciences
基金
陕西省地震局启航与创新基金课题(QC2020001)资助。
关键词
迭代法
滑动四分位距法
中强地震
电离层
TEC异常
iteration method
sliding interquartile method
moderate earthquake
the ionosphere
abnormal TEC
