报告人：Kenichi Matsuoka（挪威极地研究所 研究员）

时间：2026年1月28日（周三） 10:00-11:30

地点：空间信息中心204会议室

报告简介：

Antarctic RINGS is an international initiative under the Scientific Committee on Antarctic Research (SCAR) and the Council of Managers of National Antarctic Programs (COMNAP) that aims to address critical data gaps in bed topography across the coastal margin of the Antarctic Ice Sheet through coordinated multinational surveys. This talk first presents a theoretical framework for defining survey grid requirements needed to meet key science objectives related to ice-sheet mass balance. This is followed by a quantitative assessment of uncertainties in current Antarctic ice discharge estimates. Both analyses are based on stochastic characterization of bed topography using the Bedmap3 database. The talk then introduces two initial results of the DML/EL RINGS Project derived from airborne radar data: (1) estimates of ocean-driven basal melting beneath the Shirase Glacier, and (2) assessments of regional surface mass balance variability in Enderby Land. These radar data were collected by the Polar Research Institute of China and processed collaboratively by the research group led by Professor Tong Hao at Tongji University. Together, these results illustrate the importance of coordinated bed topography surveys for improving constraints on Antarctic ice-sheet mass balance and its contribution to global sea-level rise.

报告人简介：

Prof. Dr. Kenichi Matsuoka is a Senior Research Scientist at the Norwegian Polar Institute and an Affiliate Professor at the University of Washington, USA, where he previously served as a Research Assistant Professor before moving to Norway in 2010. His research focuses on the dynamics and long-term evolution of the Antarctic Ice Sheet, with particular emphasis on interactions between ice, the solid Earth, the ocean, and the atmosphere.

Ice-penetrating radar is a central tool in his work, complemented by geophysical surveying, numerical modeling, and satellite remote sensing through international collaborations. Prof. Matsuoka is the founding chair of Antarctic RINGS, a SCAR Action Group established to coordinate international efforts to reduce critical gaps in bed topography data along the Antarctic Ice Sheet margin—one of the largest remaining uncertainties in quantifying present-day Antarctic contributions to global sea-level rise and in projecting future change.

In parallel, he is a co-founder of Quantarctica, a free and open GIS data package for Antarctica, the Southern Ocean, and sub-Antarctic islands. Quantarctica has become a widely used community resource and has inspired similar open-data initiatives for Greenland and Patagonia.