宁波ZK03井动水位观测中的干扰异常现象分析

英文篇名：THE INTERFERENCE ANOMALIES PHENOMENON IN DYNAMIC WATER LEVEL OBSERVATION IN NINGBO ZK03 WELL ANALYSIS
中文刊名：内陆地震
英文刊名：Inland Earthquake
作者：邱永平
英文作者：QIU Yong-ping1 ; 2 (1.Ningbo Seismic Station of Zhejiang Earthquake Administration ; Ningbo 315029 ; Zhejiang ; China ; 2.The Monitoring and Prediction Center in Ningbo City ; Ningbo 315016 ; Zhejiang ; China)
中文关键词：动水位 ; 干扰异常 ; 宁波地震台
英文关键词：Dynamic water level ; Interference anomalies ; Ningbo seismic station
出版日期：2011-03-15
机构：浙江省宁波地震台;宁波市地震监测预报中心;
年：2011
期：01
出版单位：内陆地震

摘要

通过对宁波地震台ZK03井动水位9年多的观测资料分析,发现该井动水位观测中主要存在3个方面非人为因素干扰引起的异常现象。①强降雨干扰引起的异常,特征为测值阶跃式上升,但变化幅度不大,易识别;②气压突变引起的干扰,为测值脉冲式向上突跳,但不多见;③公用数采接触不良干扰,引起的是整点测值大幅度上下振荡,结果造成观测数据无效,是主要干扰因素。另有模拟水氡观测时采样干扰,表现为分钟值曲线每天出现有规律的向下脉冲式突跳1次。
Through analyzing dynamic water level observation data for 9 years in ZK03 well,there were 3 kind of anomaly phenomenon caused by non-human interference factors.① The anomaly caused by heavy rain was rising in steps with little variation amplitude;② The interference caused by flip-flops in air pressure was impulse jumps and seldom appeared;③ The interference caused by public data-gathering section in poor contact,as the main interference factor,was oscillating ups and downs drastically in hour data curve and made the observation data invalid.In addition,the sampling interference of analog water radon observation appeared one impulse downward in everyday minute curve regularly.

引文

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