Japan (STA) Postdoctoral Program: Imaging of Seismic Velocity Structure Beneath the Kanto-Tokai District, Japan

该奖项将提供补充支持，使加州大学圣巴巴拉分校的Jonathan Lees博士能够在日本筑波国家防灾研究中心与Yoshimitsu Okada博士进行为期六个月的合作研究。他们将应用李博士开发的层析成像技术来确定日本关东-东海地区地下的三维纵波速度结构，从而对地下地壳和上地幔结构进行成像。李斯博士开发的方法评估了数以万计的地震射线路径的行为，以确定路径沿线物质的组成。通过叠加地下环境的许多线性描述，可以确定三维描述。将层析成像方法应用于日本密集地震网多年来记录的大量高质量数据集，将大大提高对该地区地质结构和构造的理解。

This award will provide supplementary support to enable Dr. Jonathan Lees of the University of California, Santa Barbara to conduct collaborative research with Dr. Yoshimitsu Okada for six months at the National Research Center for Disaster Prevention, Tsukuba, Japan. They will apply tomographic techniques developed by Dr. Lees to determine the 3-dimensional P-wave velocity structure beneath the Kanto-Tokai district of Japan, and hence to image the subterranean crustal and upper mantle structures. The method developed by Dr. Lees assesses the behavior of tens of thousands of earthquake ray paths to determine the composition of the material along the paths. By superimposing the many linear descript- ions of the subterranean environment, a 3-dimensional description can be determined. Application of the tomographic method to the large, high quality data sets that have been recorded by dense seismic networks in Japan over many years should lead to a vastly improved understanding of the geological structures and tectonics of the region.