Sediment Resuspension and Deposition from Flooding Associated with Hurricane Floyd: A Rapid Response Proposal

与飓风弗洛伊德相关的洪水引起的沉积物再悬浮和沉积：快速响应提案

• 批准号: 0000336
• 负责人: John Wells
• 金额: $ 2.12万
• 依托单位: University of North Carolina at Chapel Hill
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-11-15 至 2001-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0000336&HistoricalAwards=false
• 关键词: Sediment; Resuspension; Deposition; Flooding; Associated

Funding is recommended for a Rapid Response Proposal to study the sedimentological aftermath of the mid-September Hurricane Floyd and the flood that followed and crossed the coast of North Carolina. Two questions are to be addressed: 1) What kind of sedimentary signature does a 100-500 year flooding event leave behind the Outer Banks barrier inslands? and, 2) Is there widespread mobilization of fine-grained recent sediments from temporary storage in estuarine areas? Sedimentary accumulation and remobilization processes are important to understand not only for the sequestration of sedimens and metallic and organic pollutants, but also for nutrient storage and release. The study provides a unique opportunity to answer some of the more important questions related to sequestration and resuspension/redoposition of sediments by major storms.

建议为快速响应提案提供资金，以研究九月中旬飓风弗洛伊德以及随后穿越北卡罗来纳州海岸的洪水的沉积学后果。 有两个问题需要解决： 1） 100-500 年的洪水事件会在外滩屏障岛留下什么样的沉积特征？ 2) 河口地区临时储存的细粒沉积物是否被广泛动员？ 沉积物的积累和再活化过程不仅对于沉积物以及金属和有机污染物的封存很重要，而且对于养分的储存和释放也很重要。 这项研究提供了一个独特的机会来回答一些与大风暴对沉积物的封存和再悬浮/重新沉积相关的更重要的问题。