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震后灾情的快速评估是政府救灾的主要决策依据,而烈度的快速评估是其基础。本文在ArcGIS二次开发的基础上提出了一套城市震后烈度快速评估系统,并以福州市为例介绍了该系统的功能。首先,根据具有跨平台运行能力的实时数据接收程序,将福州强震台网所记录到的地震数据文件导入本系统,再利用福州地区各类场地的地震动放大因子β,经过本系统自行编制的计算程序的快速处理,可以在1～2分钟的时间内得到福州地区的地震烈度分布图及加速度等值线分布图;另外,如果强震台没有得到强震记录,依靠中国地震台网中心发布的地震震源参数信息,同样可以进行烈度快速评估。
The rapid assessment of the disaster after the earthquake is the main decision-making basis for government disaster relief, and the rapid assessment of the intensity is the basis. Based on the secondary development of ArcGIS, this paper presents a set of rapid assessment system for urban post-earthquake intensity, and takes Fuzhou as an example to introduce the function of this system. First of all, according to the real-time data receiving program with cross-platform operation capability, the seismic data files recorded by Fuzhou strong seismic network are imported into this system, and then the seismic amplification factor β of all kinds of venues in Fuzhou area is used to compile this system Of the rapid processing of the calculation program can be obtained within 1 to 2 minutes of seismic intensity distribution map of Fuzhou and acceleration contour distribution; In addition, if the strong earthquake was not strong earthquake records, relying on the China Seismological Network Center Earthquake source parameters released by the information, the same can be quickly assessed intensity.