兰州地震台阵环境噪声调研分析

Investigation and analysis of environmental noise of Lanzhou Seismic Array

随着我国社会经济的发展,地震台站观测环境破坏日益严重。对兰州地震台阵环境噪声进行调研,定量分析并提供该台阵与国际标注各大干扰源的直线距离,以充分了解各干扰源对地震台阵的影响程度。结果发现,兰州地震台阵目前基本达到Ⅰ级台站环境噪声水平,满足台阵观测条件。

With the development of the social economy in China,the damage to the observation environment at seismic stations is becoming more and more serious.The environmental noise of Lanzhou Seismic Array is investigated,and the linear distance between the array and the major interference sources marked internationally is quantitatively analyzed and provided to fully understand the influence degree of each interference source on the seismic array.The results show that the environmental noise level of Lanzhou Seismic Array is still up to levelⅠ,which meets the observation conditions of an array.