Investigating the synchroneity of global atmospheric shifts in the Holocene

研究全新世全球大气变化的同步性

• 批准号: DE200100907
• 负责人: Dr Zoë Thomas
• 金额: $ 29.96万
• 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 Early Career Researcher Award
• 财政年份: 2020
• 资助国家: 澳大利亚
• 起止时间: 2020-01-15 至 2023-01-14
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DE200100907
• 关键词: Investigating; synchroneity; global; atmospheric; shifts

The austral mid-latitude westerly winds dominate Southern Hemisphere climate variability today (including the Australasian region) and are tightly coupled to the Southern Ocean, modulating the air-sea CO2 flux. However, short instrumental records in the south make future climate projections uncertain. This Project will develop the first highly-detailed reconstructions of westerly airflow from targeted Southern Ocean islands during key periods of change, representing a range of climate states over the Holocene (the last 11,650 yrs). Intensive radiocarbon dating will allow precise alignment to a network of palaeoclimate records to test the timing, drivers and impacts of circulation change across Australia and globally.

南半球中纬度西风主导着今天的南半球气候变率（包括澳大拉西亚地区），并与南大洋紧密耦合，调节着海-气CO2通量。然而，南方的短仪器记录使未来的气候预测不确定。该项目将在关键变化时期对目标南大洋岛屿的西风气流进行首次高度详细的重建，代表全新世（过去11，650年）的一系列气候状态。密集的放射性碳测年将允许与古气候记录网络精确对齐，以测试澳大利亚和全球环流变化的时间，驱动因素和影响。