| 黑龙江省地震科学台阵背景噪声特征分析 |
| |
| 引用本文： | 胡宝慧,刘双,常金龙,李大伟.黑龙江省地震科学台阵背景噪声特征分析[J].地震地磁观测与研究,2020,41(5):63-68. |
| |
| 作者姓名： | 胡宝慧 刘双 常金龙 李大伟 |
| |
| 作者单位： | 中国哈尔滨 150009 黑龙江省地震局 |
| |
| 摘 要： | 2019年黑龙江省完成"一带一路"地震科学台阵项目中台址勘选工作，基于科学台阵中136个台址的地面运动噪声数据，通过计算不同频段范围内背景噪声记录的加速度功率谱密度，研究不同环境噪声下科学台阵记录数据的地噪声特征及其台基响应。结果表明：黑龙江西北和东南部地区地面运动噪声水平低，观测环境较好；中部和东北部地区噪声水平较高，大庆地区尤为严重。勘选结果真实反映了黑龙江区域内的背景噪声分布，使我们对本区域地噪声水平和干扰因素有了新的认识。
|
| 关 键 词： | 科学台阵 噪声功率谱密度 概率密度函数 地面运动噪声水平 |
Analysis of background noise characteristics of Heilongjiang seismic array |
| |
| HU Baohui,LIU Shuang,CHANG Jinlong,LI Dawei.Analysis of background noise characteristics of Heilongjiang seismic array[J].Seismological and Geomagnetic Observation and Research,2020,41(5):63-68. |
| |
| Authors: | HU Baohui LIU Shuang CHANG Jinlong LI Dawei |
| |
| Institution: | Heilongjiang Earthquake Agency, Harbin 150090, China |
| |
| Abstract: | In 2019, Heilongjiang completed the site survey and selection of the "Belt and Road" seismic array project. Based on the seismic background noise survey of 136 sites, the noise characteristics and the base response of the seismic array data with different environmental noise levels are studied by calculating the acceleration power spectral density of the background noise in different frequency bands. At the same time, the comparison between seismic records of the seismic array and fixed stations is completed. The results show that the noise level in the northwest and southeast of Heilongjiang Province is low, and the observation environment is good; the noise level in the middle and northeast of Heilongjiang Province is high, especially in the Daqing area. The test results truly reflect the noise distribution in this area. A new understanding of noise level and interference factors in this area is obtained. |
| |
| Keywords: | seismic array noise power spectral density probability density function noise level |
|
| 点击此处可从《地震地磁观测与研究》浏览原始摘要信息 |
| 点击此处可从《地震地磁观测与研究》下载免费的PDF全文 |
