Back to the Future: Interglacial Warming and the West Antarctic Ice Sheet

回到未来：间冰期变暖和西南极冰盖

• 批准号: DP210103621
• 负责人: Dr Christopher Marjo
• 金额: $ 41.17万
• 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: 2021
• 资助国家: 澳大利亚
• 起止时间: 2021-01-01 至 2024-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP210103621
• 关键词: Back; Future; Interglacial; Warming; West

The Antarctic is highly-sensitive to abrupt changes caused by the passing of tipping points within the climate system. Crucially, the instrumental record is too short to resolve major uncertainties surrounding future warming. The Last Interglacial (125,000 yrs ago) was 2°C warmer than today and experienced 6-11 m higher global sea levels. The role of Antarctica is vital for constraining sea-level projections. This Australian-led international project aims to determine the mechanisms and impacts of past interglacial Antarctic warming up to 2°C (relative to pre-industrial). Innovative techniques integrating horizontal ice cores and high resolution marine records will help identify polar tipping points and better plan for impacts in Australia.

南极洲对气候系统内临界点的经过所引起的突然变化高度敏感，重要的是，仪器记录太短，无法解决有关未来变暖的主要不确定性。南极洲的海平面比现在高出 6-11 m，这一由澳大利亚牵头的国际项目旨在确定过去的机制和影响。间冰期南极洲升温达 2°C（相对于工业化前），整合水平冰芯和高分辨率海洋记录的创新技术将有助于确定极地临界点并更好地规划对澳大利亚的影响。