Annual rainfall variability and extreme drought over the late Holocene

全新世晚期年降雨量变化和极端干旱

• 批准号: DP170101033
• 负责人: Prof Pauline Grierson
• 金额: $ 33.93万
• 依托单位: The University of Western Australia
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2017
• 资助国家: 澳大利亚
• 起止时间: 2017-02-27 至 2020-09-30
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP170101033
• 关键词: Annual; rainfall; variability; extreme; drought

This project aims to understand long-term rainfall variability for Australia by developing a network of extended, high resolution rainfall records from tree rings. How anthropogenic changes to the atmosphere have influenced changing rainfall patterns across Australia is unclear. By extracting climatic information from tree growth rings across a latitudinal gradient from the subtropical north to the south coast of western Australia, the project will extend hydroclimatic records by several centuries, to identify the frequency and extent of extreme droughts across the continent. Outcomes are expected to provide appropriate context for evaluating and adapting to climate change, allowing climate modellers, agricultural producers and other industries to improve forecasts of likely change for risk management.

该项目旨在通过开发一个由树木年轮记录的扩展的高分辨率降雨记录网络来了解澳大利亚的长期降雨变化。人类活动对大气层的影响如何影响了澳大利亚各地不断变化的降雨模式尚不清楚。该项目通过从西澳大利亚亚热带北部到南部海岸的树木年轮中提取气候信息，将水文气候记录延长几个世纪，以确定整个大陆极端干旱的频率和程度。预计成果将为评估和适应气候变化提供适当的背景，使气候建模者、农业生产者和其他行业能够为风险管理改进对可能变化的预测。