国家测震台网中心强震动数据处理系统的设计与实现

Design and Implementation of Strong Motion Data Processing System for National Seismic Network Center

摘要:

为满足国家测震台网海量强震动观测数据的处理时效性、格式标准化、产品丰富度等需求,开发了兼容多类强震动观测站点且具备数据快速汇集、处理及归档等功能的强震动数据处理系统。该系统提供地震波形人机交互数据预处理界面,对加速度记录进行预处理,进一步分析预处理后的加速度事件波形数据,计算得到地震动各项参数,包括峰值加速度(PGA)、峰值速度(PGV)、峰值位移(PGD)、仪器烈度、持时、傅氏谱、反应谱和三联谱等,可以导出地震元数据、地震记录波形,对各类数据进行归档存储。该系统具有平台统一性、功能集成性、数据完备性等特点,有效提升了日常数据处理和管理能力,能在地震应急、震害评估和科学研究中发挥实效。

Abstract:

In order to meet the needs of processing timeliness,format standardization and product richness of massive strong motion observation data of National Seismic Network,a strong motion data processing system with functions of rapid data collecting,processing and archiving is developed,which is compatible with many types of strong motion observation stations. It is capable of providing a seismic waveform human-computer interaction data processing interface to preprocess the acceleration record,analyzing the acceleration event waveform data,and calculating various parameters of ground motion,including peak ground acceleration(PGA),peak ground velocity(PGV),peak ground displacement(PGD),instrument intensity,duration,Fourier spectrum,response spectrum and triple spectrum,etc. It also can export metadata and seismic record waveforms,and archive and store all kinds of data. The system is characterized with platform unity,function integration and data completeness,and will play an effective role in daily data processing and management,earthquake emergency,earthquake damage assessment and scientific research.