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Collaborative Research: P2C2--Coral Proxy and Climate Model Comparison to understand Climate Variability in the Intra-Americas Sea Region

合作研究：P2C2——珊瑚代理和气候模型比较，以了解美洲内海区域的气候变化

基本信息

批准号：
2102931
负责人：
Kristine DeLong
金额：
$ 41.79万
依托单位：
Louisiana State University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2021
资助国家：
美国
起止时间：
2021-07-01 至 2025-06-30
项目状态：
未结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2102931&HistoricalAwards=false
关键词：
Collaborative Research P2C2 Coral Proxy

项目摘要

The inter-American Seas, which include the Caribbean Sea and the Gulf of Mexico, is identified as highly sensitive to global climate variability with direct social and economic ramifications for this region of 120 million people. It is a primary moisture source for precipitation in the Americas and contains the Western Hemisphere Warm Pool that drives summer precipitation and hurricane intensity and frequency. The comparison of General circulation models (GCM) and Sea Surface Temperature data (SST) in this region, however, reveals large cold SST and dry precipitation biases hampering predictions of future climate variability in this region. This project aims to characterize and assess SST and hydroclimate variability in the Inter-American Seas using model-data comparison with the goal of pinpointing weaknesses in model skills to improve future projections. Specifically, the researchers will produce reconstructions of hydroclimate and SST using coral from seven locations back to 1850. These new past climate records and their comparison to direct observations and models will be used to investigate the mechanisms through which decadal SST variability in this region impacts the hydroclimate in the region and North America. The project will leverage existing SST reconstructions and produce new coral records from existing samples to address discrepancies among GCM, observational SST records, and paleoclimate SST reconstructions.The potential Broader Impacts include an expansion of the temporal and spatial data coverage of past sea surface temperature and hydroclimate in the IAS region. Other BI include a greater understanding of climate variability at decadal time scales, its drivers and links to large scale atmospheric circulation. Identifying time periods and geographic areas where climate models lose skill in replicating hydroclimate variability in the IAS and understanding the causes for such deficiencies is important for improving the scientific understanding of IAS climate and how it impacts the surrounding land regions, including the United States. Countries within and along the Inter-American Seas are vulnerable to tropical cyclones, sea-level rise, and decreased water availability. Further, it will improve model derived products for resource managers in the Americas and Caribbean. The project will develop outreach activities through an existing online course “managing for a changing climate” for which the researchers will provide translation in Spanish, French and Creole than can be used for climate education by various stakeholders. Additionally, the project will support the scientific training and professional development of undergraduate and graduate students, as well as a postdoctoral researcher.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.

包括加勒比海和墨西哥湾在内的美洲海域被认为对全球气候变化高度敏感，对这个拥有 1.2 亿人口的地区产生直接的社会和经济影响。它是美洲降水的主要水分来源，包含驱动夏季降水和飓风强度和频率的西半球暖池。然而，该地区大气环流模型（GCM）和海面温度数据（SST）的比较表明，冷海温和干燥降水存在较大偏差，阻碍了对该地区未来气候变化的预测。该项目旨在利用模型数据比较来描述和评估美洲海域的海温和水文气候变化，目的是查明模型技能的弱点，以改进未来的预测。具体来说，研究人员将利用七个地点的珊瑚重建自 1850 年以来的水文气候和海表温度。这些新的过去气候记录及其与直接观测和模型的比较将用于调查该地区十年海表温度变化影响该地区和北美水文气候的机制。该项目将利用现有的海表温度重建，并从现有样本中生成新的珊瑚记录，以解决 GCM、观测海表温度记录和古气候海表温度重建之间的差异。潜在的更广泛影响包括扩大 IAS 区域过去海面温度和水文气候的时空数据覆盖范围。其他商业智能包括更深入地了解十年时间尺度的气候变化、其驱动因素以及与大规模大气环流的联系。确定气候模型在复制 IAS 水文气候变化方面失去技能的时间段和地理区域，并了解这种缺陷的原因，对于提高对 IAS 气候及其如何影响包括美国在内的周围陆地区域的科学认识非常重要。美洲海域内和沿线国家很容易受到热带气旋、海平面上升和可用水量减少的影响。此外，它将改进美洲和加勒比地区资源管理器的模型衍生产品。该项目将通过现有的“气候变化管理”在线课程开展外展活动，研究人员将提供西班牙语、法语和克里奥尔语翻译，供各利益相关者用于气候教育。此外，该项目还将支持本科生、研究生以及博士后研究员的科学培训和专业发展。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

期刊论文数量（7）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

The Flower Garden Banks Siderastrea siderea coral as a candidate Global boundary Stratotype Section and Point for the Anthropocene series

DOI：
10.1177/20530196221147616
发表时间：
2023-02
期刊：
The Anthropocene Review
影响因子：
0
作者：
K. Delong;Kylie Palmer;A. Wagner;Mudith M. Weerabaddana;N. Slowey;A. Herrmann;N. Duprey;A. Martínez-García;Jonathan Jung;I. Hajdas;N. Rose;S. Roberts;L. Roberts;A. Cundy;P. Gaca;J. Andrew Milton;Handong Yang;S. Turner;Chun‐Yuan Huang;Chuan‐Chou Shen;J. Zinke
通讯作者：
K. Delong;Kylie Palmer;A. Wagner;Mudith M. Weerabaddana;N. Slowey;A. Herrmann;N. Duprey;A. Martínez-García;Jonathan Jung;I. Hajdas;N. Rose;S. Roberts;L. Roberts;A. Cundy;P. Gaca;J. Andrew Milton;Handong Yang;S. Turner;Chun‐Yuan Huang;Chuan‐Chou Shen;J. Zinke

Impacts of ocean-atmosphere teleconnection patterns on the south-central United States