暴雨红色预警下北京测震台网监测能力变化  

Change of Monitoring Capacity of Beijing Seismic Network under Warning of Red Rainstorm

作　　者：王凌 何玢 高翔 于辰飞 张伟[1] WANG Ling;HE Bin;GAO Xiang;YU Chenfei;ZHANG Wei(Beijing Earthquake Agency,Beijing 100080,China)

机构地区：[1]北京市地震局,北京100080

出　　处：《防灾减灾学报》2024年第4期49-56,共8页Journal of Disaster Prevention And Reduction

摘　　要：通过对北京测震台网功率谱密度的计算,并结合台站分布及通断情况,分析强降雨对北京测震台网各监测台站分区域造成的干扰。其影响程度依据各区降雨强弱程度来区分:西南地区降雨量最大,且部分台站出现了数据断记,因此该区域台站噪声变化最大,监测能力受到了较大的影响;中西北部地区降雨量也较大,但无断记情况出现,此区域台站噪声水平虽然受到一定程度的影响,但相对较轻;东部、北部地区降雨量较小,因此,这些区域的台站受到的影响也相对较小。By calculating the power spectral density of the Beijing Seismic Network and combining the distribution and interruption of stations,the interference caused by heavy rainfall on the monitoring stations of the Beijing seismic network in different regions is analyzed.The degree of interference impact is differentiated by the intensity of rainfall in each region:The southwest region has the highest rainfall,and some stations have experienced data discontinuity,resulting in the greatest noise changes and significant impact on monitoring capabilities;Located in the northern region of central and western China,there is a significant amount of rainfall also,but there is no interruption.Although the noise level of stations in this area is affected to a certain extent,it is relatively light;The rainfall in the eastern and northern regions is relatively small,so the stations in these areas are also relatively less affected.

关 键 词：北京测震台网 暴雨红色预警 监测能力 噪声功率谱密度 

分 类 号：P315.78[天文地球—地震学]