报告地点:教学行政楼 1004 会议室
报告时间:2024-11-06 从 15:00到16:30
报告人:Jeff Freymueller(Department of Earth and Environmental Sciences Michigan State University)
报告人简介:
Prof. jeff Freymueller received his undergraduate degree from CalTechin 1985 and his Ph.D. from the University of South Carolina in 1991.He worked as a postdoc in Stanford for 4 years. He started his academic career at the University of Alaska Fairbanks in 1995 (Professor since 2004). In 2018, Jeff decided to move to a warmer place, Michigan StateUniversity, serving as Endowed Chair for Geology of the Solid Earth. jeffis an expert in geodesy, one of the few scientists who started working on Gps.
报告题目:Geodetic observations and modeling of water mass changes related deformation and stress changes
Changes in hydrologic loads (mass transport) produces significant surface deformationand the mass changes associated with continental hydrology (including ice melting) featureinterannual variations and long-term trends that may be mistaken for components of a tectonicsignal. Mass variations also induce stress changes within the solid Earth, which may interacwith tectonic loading to inflyence earthguake occurrence, although some hydrologica changescause stress changes too small to be important, l willshow examples from Alaska and elsewhereof the impacts of loading deformation and its contribution to earthguakes stress transfer