固体地球物理学术报告通知-王凯

报告地点:腾讯会议(会议ID:364 6705 3530)

报告时间:2021-04-23 从 15:00 到 16:30

报告人:王凯

报告人简介:

Kai Wang is currently a Postdoctoral Fellow (2020-present) in the Department of Earth and Environmental Sciences at Macquarie University, where he also earned his Ph.D. degree in 2018. After graduation, he took a Postdoctoral position at the Department of Physics, University of Toronto in 2019. His research focuses on seismic tomographic techniques in computational seismology for imaging fine-scale 3D structures of the Earth to understand the tectonic and dynamic evolution of our planet. He is currently working on full wave seismic tomography of the Earth lithosphere based on 3D numerical simulations using data sets of ambient seismic noise, local earthquakes, and teleseismic body waves.

报告题目:Unveiling fine-scale structures of the Earth's lithosphere by full wave seismic tomography

报告内容简介

Seismic tomography is one of the fundamental tools in modern seismology to understand the structure and evolution of our planet. With the advancement of high-performance computing, it has now become practical to use state-of-the-art numerical techniques to study the Earth’s 3-D structures and seismic sources. In this talk, I will briefly review the widely used seismic traveltime tomography based on ray theory and introduce our recent studies in full wave seismic tomography based on the spectral-element and adjoint methods (adjoint tomography) on supercomputers. Two main topics will be presented are: (1) Adjoint tomography of three component ambient seismic noise for the study of isotropic and anisotropic crustal structure of southern California suited at the Pacific-North American plate boundary. (2) Full-waveform joint inversion of ambient noise data and telelseismic P waves to image the subducted slab beneath the central California.