报告人：Christina Hulbe（新西兰奥塔哥大学 教授）

时间：2023.11.21 15:30-17:00

地点：测绘馆401会议室

报告人简介

Dr Christina Hulbe is Professor of the National School of Surveying at the University of Otago, in Dunedin, New Zealand. She is lead investigator for the recently completed Aotearoa New Zealand Ross Ice Shelf Programme. Today, she is an Objective Lead in the New Zealand Antarctic Science Platform and co-investigator on projects involving deformation and fabric development in polar ice masses. Christina began her glaciology career working with Ian Whillans on what was at the time named Ice Stream B (now Whillans Ice Stream) in West Antarctica. She earned her BS in Geological Engineering at Montana Tech, her MS in Geology at The Ohio State University and her PhD in Geophysics at the University of Chicago (1998). She moved from the US to New Zealand in 2013. She is engaged in a number of service activities, including leadership roles with the International Glaciological Society and at her home university. She is a recipient of the IGS Richardson Medal for Service to Glaciology and the IGS.

报告简介

Glacier ice is a viscoelastic material that deforms by viscous flow, elastic bending and brittle failure. This presentation will focus on ice shelf bending in response to tide forcing, observed in the field at high spatial and temporal resolution and simulated using computational models. We will consider the effects of bending and implications of heterogeneity of ice properties revealed at the Kamb Ice Stream grounding line and along a lateral margin of Priestly Glacier.