Collaborative Research: CMG: Imaging Earth Structure with Elastic Waves by Application of the Inverse Scattering Series

记录在地球表面的来自地震和/或人造震源产生的波的信号在它们的特征中编码了关于波所经历的次表面的信息。勘探地震学的最新进展使消除混响事件和绘制地下目标的物理特征图成为可能，而不需要了解这些反射体上方的介质。该项目研究了利用被动地震台阵记录的弹性波，利用逆散射序列方法直接成像更深层地下结构的可行性。新的地震成像和反演概念和算法的推广和应用将极大地促进对地球深部过程和结构的理解和认识。这项研究的目的是推广和适应最近开发的用于油气勘探和生产的地震方法，在相对较浅的地下，利用地震和地表或地表附近的人造能源来调查和确定更深层次的地球结构。

Signals that are recorded on the earth's surface from earthquake and/or man-made source generated waves have encoded within their character information about the subsurface the waves have experienced. Recent advances in exploration seismology allow for both removal of reverberant events and mapping of the physical characteristics of subsurface targets without knowledge of the medium above those reflectors. This project investigates the feasibility of using an inverse scattering series approach to perform direct imaging of deeper subsurface structure with elastic waves recorded by passive seismic arrays. High performance computation at a level beyond that in current three dimensional seismic processing will be employed; ultimately, this extension and application of new seismic imaging and inversion concepts and algorithms will significantly advance understanding and knowledge of deep earth processes and structure.The objective of this research is to extend and adapt recently developed seismic methods designed for hydrocarbon exploration and production, in the relatively shallow subsurface, to investigate and define much deeper earth structure using both earthquakes and man-made energy sources on or near the surface.