选取2015年和2019年在1月1日00时、06时、12时3个时段的数字地震资料,对鹤岗地震台进行台基地动噪声分析,确定台站的观测动态范围、地噪声功率谱密度及地动噪声RMS值,分析台站观测能力,找出影响观测的各种干扰因素。通过对该台站背景噪声的分析,有利于提高地震台站观测质量,为研究区域地震背景噪声积累数据。
This paper introduces the instrument configuration at Hegang Seismic Station, selects the digital seismic data in 00:00, 06:00, and 12:00 on January 1, 2015, and 2019 to analyze the seismic background noise of the station, and determine its dynamic observation range, ground noise power spectral density and RMS value of ground motion noise. Based on the analysis of the dynamic range of observation instruments and the background noise level of the station foundation, the monitoring ability of the station is determined, and various interference factors are found out. It is beneficial to improve the observation quality of seismic stations and accumulate data for the study of regional seismic background noise.
2020,41(5): 69-74 收稿日期:2019-09-27
DOI:10.3969/j.issn.1003-3246.2020.05.010
基金项目:黑龙江省地震局一般项目(项目编号:201906)
作者简介:姜博(1984-),男,学士,工程师,主要从地震监测工作。E-mail:a3055957@126.com
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