摘要
受场地环境干扰影响,黄山及皖南地区部分台站地电阻率数据观测精度一直不高,主要原因是中长期观测的部分数据受干扰导致粗差过大,数据可信度缺失,在于预处理过后不得不进行删除。经长期观测,笔者所在地震台人员发现除去粗差较大数据外,其他数据呈现一定函数规律。而且此函数规律对于观测质量较高的地电观测台站来说仍能较好符合。工作人员选取合适的函数模型去对观测数据进行模拟,通过多天的已保留的可信度较高数据去估计空缺部分的数据,从而保证观测数据在一定长度的时间内的完整性,并对较长时间范围内的估计数据进行微调,使观测数据具有一定的参考和预报价值。
Due to the interference of site environment,the observation accuracy of ground resistivity data of some stations in Huangshan and southern Anhui is not high all the time.The main reason is that the gross error of some medium and long-term observation data is too large due to the interference,and the credibility of the data is missing.It has to be deleted after preprocessing.After long-term observation,the staff of the seismic station where the author works found that except for the data with large gross errors,other data showed a certain functional law.Moreover,this function law is still in good agreement with geoelectric observation stations with high observation quality.The staff selects the appropriate function model to simulate the observation data,estimates the data of the missing part through the retained data with high reliability for many days,so as to ensure the integrity of the observation data in a certain length of time,and fine tune the estimated data in a long time range,so that the observation data has certain reference and prediction value.
作者
方宁新
FANG Ningxin(Huangshan Seismic Station of Anhui Earthquake Agency,Huangshan,Anhui Province,245011 China)
出处
《科技资讯》
2022年第18期40-43,共4页
Science & Technology Information
关键词
地电阻率
参数估计
地应力分析
预报价值
Earth resistivity
Parameter estimation
Geostress analysis
Forecast value