时间：2023年5月30日（周二）上午10：00-11: 30 

Time：10: 00-11: 30 AM, Tuesday, May 30, 2023

地点：西湖大学云谷校区A1报告厅

Venue: Lecture Hall, A1, Yungu Campus

主持人：西湖大学工学院副教授Sergio Torres

Host: Sergio Torres,  Associate Professor of School of Engineering, Westlake University

主讲人/Speaker：

Herbert Hupppert is the professor of the University of Cambridge and Fellow of the Royal Society.

Herbert Huppert was born and received his early education in Sydney, Australia. He graduated in Applied Mathematics from Sydney University with first class honors, a university medal and the Baker Travelling Fellowship in 1964. He then completed his Ph.D. at University of California, San Diego, and came as an ICI Post-doctoral Fellow to the University of Cambridge in 1968. He has published widely using fluid-mechanical principles in applications to the Earth sciences: in meteorology, oceanography and geology. He was elected Fellow of the Royal Society in 1987. In 2005 he was the only non-American recipient of a prize from the US National Academy, being awarded the Arthur L. Day Prize Lectureship for contributions to the Earth sciences; and the first Australian to win this prize. He has been elected Fellow of both the American Geophysical Union and the American Physical Society. He was awarded the Murchison Medal of the Geological Society of London in 2007 and gave the Bakerian Prize Lecture of The Royal Society in 2011.

报告题目/Title: 

The Effect of Surface Waves Over Coral Reefs, Leading to a Suggestion of How to Defend Against Tsunamis

讲座摘要/Abstract: 

We will discuss drift velocities, due to wave motion of fluid which overlies a saturated porous bed. The damping effect of the porous bed leads to both a vertical and horizontal Stokes drift of the fluid, unlike the purely horizontal drift first derived by Stokes in 1847. This provides a physical model for coral reefs in shallow seas overlain by ocean wave propagation, where fluid drift both above and within the reef is vitally important for maintaining a healthy reef ecosystem. We will also explain, and show pictures of, the small vertical drift measurements in coral reefs, essential to the biological exchange between the coral layer and the sea above. Then, hopefully starting with a series of desk-top experiments (if equipment is available), we will indicate how these calculations and confirmatory field observations suggest a highly efficient, and not too costly, mechanism for diminishing the energy in tsunamis, and thus possibly saving both many thousands lives and many millions of dollars in damage, which could occur due to future unabated tsunami propagation.

讲座联系人/Contact:

科技合作部sci-tech02@westlake.edu.cn