EAGER: Creating a Composite EL Nino Record from the Lowland Neotropics

EAGER：创造低地新热带区综合厄尔尼诺记录

• 批准号: 2417794
• 负责人: Mark Bush
• 金额: $ 25.65万
• 依托单位: Florida Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2024
• 资助国家: 美国
• 起止时间: 2024-03-01 至 2026-02-28
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2417794&HistoricalAwards=false
• 关键词: EAGER; Creating; Composite; EL; Nino

This project is supported under the auspices of the EArly concept Grant for Exploratory Research (EAGER) program to investigate aspects of recurring El Niño Southern Oscillation (ENSO) events. These events are the largest cause of global interannual climate variability and are associated with extreme warmth causing dramatic increases in global temperature from which no subsequent retreat occurs. Although ENSO is climatically forced in the Pacific Ocean, there are strong environmental teleconnections with the Atlantic Ocean.Gaining a historical perspective on ENSO frequency and intensity is integral to understanding the threat from future ENSO events. Currently, modeling predictions of how ENSO would respond in a warmed world do not provide a clear scientific understanding.The researchers aim to develop a composite record of ENSO history based on eight highly resolved sedimentary records that will produce records of ENSO variability spanning the last 5000 years from northern South America. These records will be added to other records to provide a composite record of ENSO from six mainland lakes, including one record from the Galapagos Islands and one from a nearshore marine setting in Peru. Through this analysis, the research team aims to reduce idiosyncrasies induced by reliance on a single site to provide the history of ENSO.This is a potentially high-risk and high-reward project as it breaks new ground in Intellectual Merit by developing new ENSO records. The project has excellent potential Broader Impacts because challenging scientific orthodoxy and seeking to better understand fundamental atmospheric physics that governs atmospheric dynamics is critical to addressing a range of atmospheric phenomena. The project supports an early career doctoral scholar from an underrepresented group in science and also promotes meaningful international collaboration with researchers in Ecuador.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该项目得到了探索性研究的早期概念赠款（急切）计划的主持，以调查经常出现的厄尔尼诺南部振荡（ENSO）事件的各个方面。这些事件是全球气候变化的最大原因，并且与极端温暖有关，导致全球温度急剧升高，随后没有发生撤退。尽管ENSO在太平洋中被迫强迫，但与大西洋有着强烈的环境远程连接。对ENSO频率和强度的历史视角是了解未来ENSO事件的威胁是不可或缺的。当前，对ENSO在温暖世界中如何做出反应的预测进行建模并不能提供清晰的科学理解。研究人员旨在根据八个高度分辨的沉积记录来开发ENSO历史记录的综合记录，该记录将产生跨越北部南美5000年的ENSO变异性记录。这些记录将被添加到其他记录中，以提供来自六个大陆湖泊的ENSO的综合记录，其中包括加拉帕戈斯群岛的一份记录，以及秘鲁近海海洋环境的一份记录。通过这项分析，研究小组旨在减少依赖单个站点引起的特质，以提供ENSO的历史。这是一个潜在的高风险和高回报的项目，因为它通过开发新的ENSO记录而在知识分子中脱颖而出。该项目具有巨大的潜在广泛影响，因为挑战科学的正统观念，并寻求更好地理解控制大气动态的基本大气物理学对于解决一系列大气现象至关重要。该项目支持了一项职业生涯的早期博士科学科学领域的一项早期职业科学，并促进了与厄瓜多尔研究人员的有意义的国际合作。该奖项反映了NSF的法定任务，并被认为是通过基金会的智力优点和更广泛影响的审查标准通过评估来通过评估来支持的。