基于Arcpy的地震烈度等值线生成  

Seismic intensity contour generation based on Arcpy

作　　者：梁芳[1] 白立新[1] 何荣帅[1] 熊焰[1] 张杰[1] 成云辉[1] LIANG Fang;BAI Lixin;HE Rongshuai;XIONG Yan;ZHANG Jie;CHENG Yunhui(Beijing Earthquake Agency,Beijing 100080,China)

机构地区：[1]北京市地震局,北京100080

出　　处：《地震地磁观测与研究》2023年第6期42-47,共6页Seismological and Geomagnetic Observation and Research

基　　金：北京市地震局科技项目(项目编号:BJWC-2022004,BJWC-2023005)。

摘　　要：根据高密度地震监测台网生成的实测烈度值,开发1套基于Arcpy的计算程序,利用ArcGIS平台提供的Geostatistical Analyst模块进行克里金插值,得到烈度等值线分布图。在程序功能实现基础上,选用震例进行检验。研究结果显示,对于研究区域内仪器烈度在Ⅱ度以上的地震,基于本程序绘制的等值线图能够直观反映震后烈度分布,可为震后快速评估震害影响提供参考依据。Based on the measured intensity values generated by the high-density earthquake monitoring network,a set of Arcpy-based computational programs was developed.The Geostatistical Analyst module provided by the ArcGIS platform was used for kriging interpolation to obtain the intensity contour distribution map.After functional implementation of the program,selected earthquake cases were tested.The research results show that for earthquakes with instrument intensity above magnitudeⅡin the study area,the contour map drawn based on this program could intuitively reflect the post-earthquake intensity distribution,providing a reference for rapid hazard assessment after the earthquake.

关 键 词：Arcpy ARCGIS Geostatistical Analyst 克里金插值 烈度 等值线 

分 类 号：P315.7[天文地球—地震学]