Joint Tomography with Seismic First-break And Reflection under Rugged Topographical Conditions

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Guo, Tianzhi^1 ; Xu, Chun^1 ; Song, Liang^1

Chang'An University, Xi'an

710054, China^1

关键词: First breaks;    Fitting degree;    Hybrid meshes;    LSQR algorithms;    Seismic tomography;    Seismic travel time;    Theoretical modeling;    Variable structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/2/022134/pdf
DOI  :  10.1088/1755-1315/300/2/022134

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Seismic travel-time tomography is one of method which can inverse some information of underground medium such as structure, velocity distribution and so on. In order to solve the problem about seismic tomography under rugged topographical conditions. The author develops a new way for seismic tomography by combine LTI method based on hybrid meshes which has high fitting degree for the variable structure underground with LSQR algorithm. Thus, the joint tomography with seismic first-break and reflection under rugged topographical conditions has been achieved. The stability and effectiveness is verified by theoretical model test.