摘要
GNSS能够提供高精度、大范围、快速实时的地壳运动数据,基于GNSS技术进行地震研究是现代地学研究的主流手段之一。本文以汶川地震为研究对象,采用布设于汶川地震带两边的16个GNSS连续运行监测站数据,基于同震及震后位移分离模型,计算分析汶川地震的同震位移。通过对16个站的同震位移结果进行分析,得到同震水平位移场和垂直位移场的主要特征,与地震台网观测数据大致一致。
High precision,large range,fast real time crustal movement data can be provided by GNSS,seismic research based on GNSS technology is one of the mainstream means of modern geoscience research.In this paper,the Wenchuan earthquake is taken as the research object.On both sides of the Wenchuan earthquake zone,16 GNSS continuously operating monitoring stations are located,and the data from which are used to calculate and analyze the co seismic displacement of the Wenchuan earthquake based on the co seismic displacement and post seismic displacement separation model.Based on the analysis of the co seismic displacement results of 16 stations,the main characteristics of the horizontal and vertical displacement fields are obtained,which are roughly consistent with the observed data of the seismic network.
作者
尹伟言
张建华
赵鑫
YIN Weiyan;ZHANG Jianhua;ZHAO Xin(61363 troops;The FirstGeodeic Surveying Brigade,MNR,Xi′an,Shaanxi 710054,China;Institute of Surveying and Mapping Standardization,MNR,Xi′an,Shaanxi 710054,China)
出处
《测绘标准化》
2023年第2期40-44,共5页
Standardization of Surveying and Mapping
关键词
GNSS
地震监测
地壳形变
同震位移
GNSS
seismic monitoring
crustal deformation
co seismic displacement
