华南地震2017，Vol.37Issue(1)：1-7,7.DOI:10.13512/j.hndz.2017.01.001
华南地区电离层扰动与河源地震关系的研究
Study of the Perturbations of Ionosphere over South China Associated with Heyuan Earthquakes
摘要
Abstract
This paper investigated the TEC (total electron content) perturbations of low-latitude ionosphere over South China possibly associated with two moderate Heyuan earthquakes,using data monitored from ten stations located in South China and from four stations in preparation zone of Heyuan earthquake.The analysis of time series of TEC showed that TEC perturbations including negative anomalies as well as positive anomalies occurred 15 days before two Heyuan earthquakes,indicating moderate magnitude earthquakes with less destructibility being able to trigger pronounced perturbations in the ionosphere.The TEC perturbations of the ionosphere monitored from ten GPS receiver stations were lower than that from four GPS receiver stations within the preparation zone of earthquake,indicating the validity of the Dobrovolsky's formula for estimating dimensions of the earthquake preparation zone.关键词
电子总含量(TEC)/Dobrovolsky公式/E×B漂移/地震电离层扰动Key words
Total electron content (TEC)/The Dobrovolsky's formula/The E×B drift mechanism/Seismoionospheric perturbations分类
天文与地球科学引用本文复制引用
徐杰,邓柏昌,杨晶晶,黄江..华南地区电离层扰动与河源地震关系的研究[J].华南地震,2017,37(1):1-7,7.基金项目
广东省科技厅计划项目“GPS在广东地区现今构造变形分析和地震预测的应用研究”(2013B020200010)资助 （2013B020200010）
