This book introduces a methodology for solving the seismic inverse problem using purely numerical solutions built on 3D wave equations and which is free of the approximations or simplifications that are common in classical seismic inversion methodologies and therefore applicable to arbitrary 3D geological media and seismic source models. Source codes provided allow readers to experiment with the calculations demonstrated and also explore their own applications.

Connects FWI and conventional tomography with imaging techniques used in seismic inversions and in other scientific/engineering disciplines such as medical imaging, remote sensing, etc. Explains the mathematics needed to fully understand FWI theory Develops the FWI theory based on nonlinear optimization and on the data assimilation approach that has been widely adopted in atmospheric and ocean sciences Provides a set of computer programs allowing readers to carry out the calculations demonstrated in the book and explore their own applications by modifying the source codes Suggests applications for FWI in seismic tomography and in seismic source parameter inversions Includes supplementary material: sn.pub/extras

Autorentext

Po Chen is an Associate Professor in the Department of Geology and Geophysics and the School of Energy Resources, University of Wyoming. He has published 24 peer-reviewed journal papers, 5 peer-reviewed conference papers, one book and three book chapters. Most of his publications are focused on different aspects of the newly emerging Full-3D Waveform Inversion (F3DWI) technique and its applications in earthquake hazard analysis/mitigation, resource exploration, crustal and upper-mantle dynamics. He teaches seismological inverse problems and has developed a set of parallel software tools for solving F3DWI problems. En-jui Lee is currently an Assistant Professor at the Department of Earth Sciences, National Cheng Kung University, Taiwan. He has published six peer-reviewed journal papers and one book chapter on full-3D waveform inversion, including full-wave earthquake source inversions, waveform analysis tools for full-3D waveform inversions, optimized LSQR algorithm for large seismic tomographic inversions and potential applications of full-wave methods on seismic hazard analysis.

Inhalt

Preface.- Introduction.- An elastic Wave Propagation (AWP).- Green's Functions.- Data Sensitivity Kernels.- Optimization Algorithms.- CVM-S4.26.- Index.