地震地磁观测与研究2023，Vol.44Issue(6)：27-31,5.DOI:10.3969/j.issn.1003-3246.2023.06.004
基于瑞雷面波群速度频散反演上海地区S波速度结构
Inversion of S-wave velocity structure based on Rayleigh surface wave group velocity dispersion in Shanghai
摘要
Abstract
Using the seismic surface wave data recorded at the fixed stations of the Shanghai Seismic Network,the dispersion curve of Rayleigh surface wave group velocity with an 8-20 s period is extracted by the multiple filtering method,and the one-dimensional velocity structure under the stations is inverted.The results show that for the entire Shanghai region,the lateral velocity heterogeneity is not obvious,and the difference in S-wave velocity at each station is small at the same depth.The average velocity of the upper crust is about 3.6 km/s,and the average velocity of the middle and lower crusts is about 3.8 km/s and 4.1 km/s,respectively.关键词
面波频散/瑞雷面波/S波速度结构Key words
surface wave dispersion/Rayleigh surface wave/S-wave velocity structure引用本文复制引用
王仁涛,董一兵,冯策,潘国勇,夏波,蔡旭荣..基于瑞雷面波群速度频散反演上海地区S波速度结构[J].地震地磁观测与研究,2023,44(6):27-31,5.基金项目
上海佘山地球物理国家野外科学观测研究站研究室课题(项目编号:2023SSY02) （项目编号:2023SSY02）
