East Antarctica: subglacial heat flux constraints for ice sheet modelling

东南极洲：冰盖建模的冰下热通量约束

• 批准号: DP180104074
• 负责人: Prof Martin Hand
• 金额: $ 16.83万
• 依托单位: The University of Adelaide
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2018
• 资助国家: 澳大利亚
• 起止时间: 2018-02-01 至 2022-06-30
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP180104074
• 关键词: East; Antarctica; subglacial; heat; flux

This project aims to quantify the heat flux from the East Antarctic continent into the base of the ice sheet via the derivation of a large geochemical database, together with elevation-based modelling and new heat flux measurements in regions formerly contiguous with East Antarctica. This subglacial heat flux is poorly constrained in current ice sheet models, but directly affects ice sheet behaviour. The output of this project will be a greatly improved heat flux map for East Antarctica that can be used in ice sheet modelling studies. This should drive significant improvement in models for the evolution of the East Antarctic Ice Sheet, resulting in more accurate projections of ice discharge and associated sea level change.

该项目旨在量化从南极东部大陆到冰盖底部的热通量，方法是推导一个大型地球化学数据库，以及基于海拔的建模和以前与南极洲东部相邻地区的新热通量测量。这种冰下热通量在目前的冰盖模式中没有得到很好的约束，但直接影响冰盖的行为。该项目的产出将是大大改进的东南极洲热通量图，可用于冰盖模拟研究。这将推动南极东部冰盖演变模式的重大改进，从而更准确地预测冰流量和相关的海平面变化。