Risks of rapid ocean warming at the Antarctic continental margin

南极大陆边缘海洋快速变暖的风险

• 批准号: DP190100494
• 负责人: Prof Matthew England
• 金额: $ 41.21万
• 依托单位: The University of New South Wales
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2019
• 资助国家: 澳大利亚
• 起止时间: 2019-01-01 至 2024-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP190100494
• 关键词: Risks; rapid; ocean; warming; Antarctic

This project aims to comprehensively understand the interconnected processes by which oceanic heat is circulated towards Antarctica. The risk of rapid ocean warming at the Antarctic margin is profound, with change already detected via deep ocean warming, land-ice melt, and ice shelf collapse. Yet this region remains poorly understood, with only limited observations due to both a harsh environment and a lack of standard data streams. This project will use high-resolution global and regional ocean/sea-ice models to examine mechanisms for rapid warming of Antarctic continental shelf waters via both large-scale drivers and fine-scale processes, including mesoscale eddies, tide-topography interactions, and bottom boundary flows. This work will better constrain future rates of ice melt around Antarctica by providing vital knowledge of the ocean processes, dynamics, and feedbacks relating to warm water intrusion onto the Antarctic continental shelf.

该项目旨在全面了解海洋热量向南极洲循环的相互关联的过程。南极边缘海洋快速变暖的风险是巨大的，深海变暖、陆地冰融化和冰架崩塌已经检测到了变化。然而，由于恶劣的环境和缺乏标准数据流，人们对该地区的了解仍然很少，观测结果也很有限。该项目将使用高分辨率的全球和区域海洋/海冰模型来研究南极大陆架水域通过大规模驱动因素和精细尺度过程快速变暖的机制，包括中尺度涡流、潮汐地形相互作用和海底边界流。这项工作将通过提供有关海洋过程、动力学和与温水入侵南极大陆架相关的反馈的重要知识，更好地限制南极洲周围冰融化的速度。