报告人：Frank Pattyn（比利时布鲁塞尔自由大学 教授）

时间：2024.3.11 15:00-16:30

Zoom会议：939-552-82368

密码：见邮件或班级通知

报告人简介

Frank Pattyn is a glaciologist/ice-sheet modeller and director of the Laboratoire de Glaciologie of the ULB. His research focuses on improving projections of the contribution of large ice sheets (especially Antarctica) to future sea-level rise. He developed a number of ice-sheet models, such as the Blatter-Pattyn model, capable of simulating the behaviour of fast-flowing ice streams and ice flow across subglacial lakes. He is also actively involved in a series of Ice-Sheet Model Intercomparison Projects (ISMIP), such as ISMIP-HOM, ISMIP-HEINO, MISMIP, MISMIP3D, and ABUMIP. He is currently Chairman of the Belgian National Committee on Antarctic Research (SCAR delegate) and Associate Chief Editor of Journal of Glaciology.

报告简介

In order to understand the behaviour of glaciers and ice sheets in response to climatic changes over short and long time scales, ice sheet/glacier models are applied that comprise the principle mechanisms driving ice evolution. Although such models are simplified representations of the reality, they allow an assessment of past and future ice sheet evolution on a physical basis. The applicability of a specific model mainly depends on the included processes and the studied ice geometry. With the aim to better represent the real system, ice sheet models are continuously refined to include the most appropriate descriptions of the central physical processes. In this seminar I will focus on different approximations of the Stokes approximations, generally used in ice sheet modelling and evaluate their applicability to different problems in glaciology.