报告地点：腾讯会议(会议ID：411 4788 6096）
报告时间：2021-01-15 从 15:00 到 16:30
报告人：胡燮
报告人简介：
胡燮，休斯顿大学土木与环境工程学院及美国国家激光雷达测绘中心助理教授。07级中国地质大学(武汉)学士，武汉大学硕士，美国南卫理公会大学博士，加州大学伯克利分校博士后。研究主要集成SAR遥感和其他大地测量和气象水文资料，解译地表过程及地质灾害机制。发表论文 12 篇，近五年第一作者发表9 篇文章均为Nature Index/一区期刊，包括 Nature Communications, EPSL。获NASA地球与空间科学研究基金和国家优秀自费留学生奖。
报告题目：Quantification of fault-landslide and fault-aquifer interactions using SAR remote sensing
报告内容简介
Quantifying dynamics of the surface and shallow processes is challenging due to the stochastic nature. Spatiotemporal deformation measurements promote interdisciplinary studies for a better understanding of the rheology and geometry of the subsurface mass, and kinematics and forcing of the attendant processes. Here we rely on the contemporary airborne and satellite SAR imagery to elucidate the spatiotemporal displacements of the Slumgullion landslide in Colorado with persistent movements at 1-2 cm/day, Berkeley Hill landslides in California with the creeping Hayward fault cutting through or bounding their upper edges, and Salt Lake City aquifer in Utah with 50-mm seasonal expansion and contraction. The statistical, analytical and numerical models built on the ground displacements allow us to quantitatively characterize the mass viscosity using non-Newtonian model, the favoring environments for landsliding in the context of pull-apart basins and positive flower structures, the role of the groundwater volume strain and stress in the critical seismogenic zone, and the spatial- and time-dependent response to the hydroclimatic variability.
报告视频