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.

澳大利亚中纬度西风在当今的南半球气候变化（包括澳大利亚地区）中占主导地位，并紧密耦合到南大洋，调节空气海洋二氧化碳通量。但是，南方的简短工具记录使未来的气候预测不确定。该项目将在关键的变化期间开发出来自目标南洋岛屿的西风气流的首次详细详细片重建，这代表了全新世的一系列气候状态（最后11,650年）。密集的放射性碳年代将允许与古气候记录网络进行精确的一致性，以测试整个澳大利亚和全球循环变化的时机，驱动因素和影响。