RAPID: Geomorphologically contextualized flood deposit sampling and mapping of toxic hazards: insights from the catastrophic July 2022 floods in eastern Kentucky

RAPID：地貌背景洪水沉积物采样和有毒危害绘图：来自肯塔基州东部 2022 年 7 月灾难性洪水的见解

• 批准号: 2242120
• 负责人: jason dortch
• 金额: $ 4.98万
• 依托单位: University of Kentucky Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2023-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2242120&HistoricalAwards=false
• 关键词: RAPID; Geomorphologically; contextualized; flood; deposit

The catastrophic and deadly floods affecting eastern Kentucky during the last few days of July 2022 provide an unprecedented opportunity to understand within a geologic context the distribution of potentially harmful contaminants in recent flood deposits in a way that will help inform future public health assessments and interventions in public health, geology, and climate science. With a multidisciplinary team bringing together expertise in geomorphology, sedimentology, geohealth, epidemiology, and toxicology, the researchers will perform a rapid evaluation of flood deposit geomorphology and toxicity in the wake of an unprecedented flood event in eastern Kentucky. The research goals are to measure the extent, morphology, and stratigraphy of mappable flood deposits within key selected drainages affected by the July 2022 floods in eastern Kentucky, and to measure the distribution and timing of metals, organics, and other contaminants with public health implications within the newly deposited sediments. The team will use geomorphological mapping, UAV-based lidar microtopographic surveys, digital terrain modeling, and both field- and lab-based geochemical sampling to begin understanding the geologic and hydrologic controls on contaminant distribution of the flood deposits. In addition to identifying the instantaneous spatial variability of recent flood deposit geochemistry, the research will form the foundation for future long-term studies of flood sediment deposition, contaminant migration and fate. It will also inform on how steep mountain landscapes respond to catastrophic flooding events.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.

2022年7月最后几天影响肯塔基州东部的灾难性和致命洪水提供了一个前所未有的机会，可以在地质背景下了解最近洪水沉积物中潜在有害污染物的分布，这将有助于为未来的公共卫生评估和公共卫生、地质学和气候科学干预提供信息。在一个汇集了地貌学、沉积学、地质健康、流行病学和毒理学专业知识的多学科团队的帮助下，研究人员将在肯塔基州东部发生史无前例的洪水事件后，对洪水沉积地貌和毒性进行快速评估。研究目标是测量受2022年7月肯塔基州东部洪水影响的关键选定水系内可绘制洪水沉积的范围、形态和地层学，并测量新沉积的沉积物中金属、有机物和其他对公共健康有影响的污染物的分布和时间。该团队将使用地貌测绘、基于无人机的激光雷达微地形测量、数字地形建模以及基于现场和实验室的地球化学采样，以开始了解地质和水文对洪水沉积物污染物分布的控制。除了确定近期洪水沉积地球化学的瞬时空间变异性外，这项研究还将为未来洪水沉积、污染物迁移和命运的长期研究奠定基础。它还将介绍陡峭的山区景观如何应对灾难性洪水事件。这一奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。