南通地震监测中心站跨断层短水准观测数据分析及异常判断  

ANALYSIS AND ANOMALY JUDGMENT OF SHORT LEVEL OBSERVATION DATA ACROSS FAULTS IN NANTONG EARTHQUAKE MONITORING CENTER STATION

作　　者：吴继炜 祁蒙 邱新斌 WU Jiwei;QI Meng;QIU Xinbin(Nantong earthquake monitoring center station,Nantong 226000,China)

机构地区：[1]南通地震监测中心站,江苏南通226000

出　　处：《高原地震》2023年第2期43-49,共7页Plateau Earthquake Research

摘　　要：以南通地震监测中心站跨断层短水准场地2017年11月28日观测曲线上升率异常为例,通过对短水准观测场地环境、观测场地标志的稳定性、仪器工作状态、气象因素水文因素、人为影响、异常变化特点等因素分析。结果认为此次异常为台站附近施工改变观测环境的影响以及观测系统误差、人为影响因素综合叠加导致的观测数据产生异常。结合观测环境变化,提出了对短水准N-S1向加速上升异常进行核实判断的思路。Taking the observation curve rise rate anomaly of the short level site across faults of Nantong Earthquake Monitoring Center Station on November 28,2017 as an example,this paper analyzes the environment of the short level observation site,the stability of the marker of the observation site,the working state of the instrument,meteorological factors and hydrological factors,human influence,and the characteristics of abnormal changes.The results show that the anomaly is caused by the observation environment changed by the construction near the station,the observation system error and human influences factors.Based on the observation environment changes,the idea of verifying and judging the acceleration anomalies of short level N-S1 is putting forward.

关 键 词：破年变 短水准 异常分析 异常核实 跨断层 

分 类 号：P315.725[天文地球—地震学]