北京测绘2024，Vol.38Issue(12)：1745-1748,4.DOI:10.19580/j.cnki.1007-3000.2024.12.017
2023年德州平原县地震引起的近场GNSS坐标异常分析
Near-field GNSS coordinate anomalies caused by 2023 Earthquake in Pingyuan County,Dezhou City
摘要
Abstract
On August 6,2023,an earthquake of magnitude 5.5 occurred in Pingyuan County,Dezhou City,marking the largest earthquake in Shandong in the past decade.In order to detect the near-field global navigation satellite system(GNSS)coordinate anomalies caused by this earthquake,this paper analyzed the GNSS observation data about 30 km around the epicenter and introduced the interquartile range to analyze the coordinate time series and coordinate velocity time series in the north(N),east(E),and up(U)directions.The results show that around the 10th and 11th seconds after the earthquake occurred,the coordinate time series in the N and E directions shows obvious anomalies,exceeding 0.5 times the normal value,while the coordinate time series anomaly in the U direction is not significant.The velocity time series in the N,E,and U directions detected anomalies at the 10th,11th,and 15th seconds after the earthquake occurred.This study successfully utilizes GNSS technology to detect near-field GNSS coordinate anomalies during the earthquake in Pingyuan County,Dezhou City.关键词
全球导航卫星系统/坐标异常/地震/四分位距法Key words
global navigation satellite system/coordinate anomaly/earthquake/interquartile range分类
天文与地球科学引用本文复制引用
杨磊,刘欢..2023年德州平原县地震引起的近场GNSS坐标异常分析[J].北京测绘,2024,38(12):1745-1748,4.基金项目
山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队)开放基金(LNY202204) （山东省地质矿产勘查开发局第二地质大队）
