Collaborative Research: Reconstruction of Paleo-Storm History Using Geochemical Proxies in Coastal Lake Sediments

该项目将利用沿海湖泊沉积物中跨越数千年的历史信息，推进对飓风及其与气候变化关系的科学理解。这些知识可以帮助沿海规划者更好地管理飓风给沿海社区带来的风险。研究结果将在美国国家海洋和大气管理局的公共网站上公布。该项目将为佛罗里达州立大学和中佛罗里达大学的本科生和研究生提供研究培训。它还将为佛罗里达州塔拉哈西国家强磁场实验室教育项目的K-12学生和教师提供研究经验。最近的研究表明，保存在沿海湖泊沉积物中的有机地球化学指标是风暴事件的敏感指标，可以用来重建古风暴历史。本项目旨在研究佛罗里达北部和东部沿海湖泊的同位素系统，并通过地球化学指标分析，建立这些地区全新世晚期风暴和环境变化的高分辨率多代用记录。研究结果将用于检验有关海面温度和飓风活动之间可能存在联系的假设。这一努力可能有助于限制描述全球变暖将如何影响区域气候条件的预测模型。

This project will use historical information spanning thousands of years from coastal lake sediments to advance scientific understanding of hurricanes and their relationship to climate change. This knowledge could help coastal planners better manage the risk that hurricanes pose to coastal communities. The results will be shared on public websites of the National Oceanic and Atmospheric Administration. This project will provide research training for both undergraduate and graduate students at Florida State University and the University of Central Florida. It will also provide research experience to K-12 students and teachers from education programs at the National High Magnetic Field Laboratory in Tallahassee, FL. Recent studies suggest that organic geochemical proxies preserved in coastal lake sediments are a sensitive indicator for storm events and can be used to reconstruct paleo-storm history. This project aims to examine the isotopic systematics in coastal lakes in northern and eastern Florida, and to develop high-resolution multi-proxy records of storms and environmental changes during the late Holocene for these regions via analyses of geochemical proxies. The results will be used to test hypotheses concerning the possible linkage between sea surface temperature and hurricane activity. This effort could help constrain predictive models that describe how global warming will affect regional climate conditions.