华南地震2026，Vol.46Issue(3)：44-50,7.DOI:10.13512/j.hndz.2026.03.07
琼粤桂地区定点形(应)变监测内在精度分析
Intrinsic Precision Analysis of Fixed-Point Deformation(Strain)Monitoring in Hainan,Guangdong and Guangxi Region
摘要
Abstract
As a key earthquake monitoring area in South China,high-precision deformation data plays an impor-tant supporting role in seismic situation judgment in Hainan,Guangdong and Guangxi regions.This paper quantita-tively analyzed the intrinsic precision of continuous observation data from 11 sets of deformation observation instru-ments(including ground tilt and ground strain types)at 6 stations in Hainan,Guangdong and Guangxi regions from January 2015 to May 2023.The results show that the two directional components of the DSQ water tube tiltmeter and extensometer at Wuzhishan Station,the SSY invar rod extensometer at Wuzhou Station,and the two orthogo-nal components of the vertical pendulum at Shantou Station have strong stability,with α values close to the ideal value of 1.0.The intrinsic stability of the North-South(NS)component of all instruments in the region is generally better than that of the East-West(EW)component.By combining the operation status of instruments,installation en-vironment and operation and maintenance management practices,this paper deeply discusses the key factors affect-ing data reliability,and puts forward targeted improvement suggestions,providing technical reference for enhanc-ing the crustal deformation monitoring efficiency and precursor information identification capability in this region.关键词
地倾斜仪/地应变仪/潮汐因子/内在精度/琼粤桂地区Key words
Ground tiltmeter/Ground strainmeter/Tidal factor/Intrinsic precision/Hainan,Guangdong and Guangxi regions分类
天文与地球科学引用本文复制引用
郭昱琴,吴双,罗岐慧,郑丽东,杨世杰..琼粤桂地区定点形(应)变监测内在精度分析[J].华南地震,2026,46(3):44-50,7.基金项目
中国地震局地震监测预报预警工作任务(CEA-ZQGZ-202501027) （CEA-ZQGZ-202501027）
