New insights on the forcing of Quaternary ice-age terminations

关于第四纪冰河时代终止的新见解

• 批准号: DP220102133
• 负责人: Prof Russell Drysdale
• 金额: $ 29.15万
• 依托单位: The University of Melbourne
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2022
• 资助国家: 澳大利亚
• 起止时间: 2022-03-15 至 2025-03-14
• 项目状态: 未结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP220102133
• 关键词: New; insights; forcing; Quaternary; ice

This project investigates the period when Earth's climate last experienced a major step change. Using novel techniques, it combines information from an exceptional archive of cave deposits and ocean sediments to precisely determine the timing of ice-age cycles. The results will provide the first robust test of hypotheses proposed to explain these cycles, leading to refinements in the astronomical theory of the ice ages. They will also provide an essential reference record of Northern Hemisphere ice-sheet history, which will complement data from forthcoming Antarctic ice cores. Together, this will better contextualise current and projected greenhouse warming.

该项目调查地球气候上次经历重大变化的时期。它利用新技术，结合了来自洞穴沉积物和海洋沉积物的特殊档案的信息，以精确确定冰河时代周期的时间。研究结果将为解释这些循环的假设提供首次强有力的检验，从而完善冰河时代的天文学理论。它们还将提供北半球冰盖历史的重要参考记录，这将补充即将发布的南极冰芯的数据。总之，这将更好地了解当前和预计的温室变暖。