Hawaiian Drowned Reefs: Climate variability and coral reef response to environmental change in the sub-tropical Pacific over the last 500 ky

夏威夷淹没的珊瑚礁：过去 500 年来气候变化和珊瑚礁对亚热带太平洋环境变化的响应

• 批准号: NE/Y005503/1
• 负责人: Nicola Allison
• 金额: $ 3.3万
• 依托单位: University of St Andrews
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FY005503%2F1
• 关键词: Hawaiian; Drowned; Reefs; Climate; variability

This research will produce records of seawater temperature and seawater chemistry in the Sub-tropical Pacific Ocean over the last 500,000 years. This time frame spans the last 5-6 glaciations and these temperature records will allow us to determine how climate changed as the ice sheets first advanced and then subsequently melted. We will correlate temperature records with known drivers of climate change such as increases in atmospheric carbon dioxide and variations in how the planet is tilted towards the sun. The temperature records will also allow us to explore how the severity and frequency of climate events such as El Nino-Southern Oscillation has varied in the past.In addition to these climate records, the research will also provide information as to how corals have responded to climate change in the past and how this influenced how they built reefs. In the present day, coral reefs support the livelihoods of billions of people. The planned research will determine if reefs grew more slowly or more rapidly in the past compared to the present day and if they were more or less resilient to erosion.

这项研究将在过去500，000年的时间里产生亚热带太平洋海水温度和海水化学的记录。这个时间范围跨越了最后5-6个冰川，这些温度记录将使我们能够确定气候随着冰盖首次前进而随后融化而变化。我们将将温度记录与已知的气候变化驱动因素相关联，例如大气二氧化碳的增加以及行星如何向太阳倾斜的变化。温度记录还将使我们能够探讨过去的气候事件的严重性和频率（例如埃尔尼诺 - 南方振荡）过去如何有所不同。除了这些气候记录外，该研究还将提供有关珊瑚在过去如何对气候变化做出反应以及如何影响珊瑚礁的信息。目前，珊瑚礁支持数十亿人的生计。计划的研究将确定过去的珊瑚礁在过去的情况下与当今的礁石相比是否较慢或更快地生长，以及它们是否或多或少对侵蚀有弹性。