Developments of Finite-Frequency Seismic Theory and Applications to Regional Tomographic Imaging

摘要: Abstract : We use "banana-doughnut" sensitivity kernels of teleseismic body waves to image the crust and mantle beneath eastern Eurasia. have collected processed available broadband data from both permanent stations temporary networks in In southeast Tibet, where a PASSCAL experiment provided dense station coverage, detailed study is carried out obtain high-resolution P- Svelocity models. A regional P-wave velocity model for Eurasia also obtained by inverting finite-frequency traveltimes To improve resolution uppermost mantle, we made several contributions finite-difference, scattering-integral method (FDSIM), including head component-dependent sensitivities. developed surface-wave tomography using ambient seismic noise 3D Green's functions. demonstrate that tomographic models upper can be achieved places with stations, such as Tibet. show continental-scale P wave comparable