RAPID: Mississippi Flood of 2011 - Investigation of Initial Impact on the Landscape

RAPID：2011 年密西西比州洪水 - 对景观的初步影响的调查

• 批准号: 1140198
• 负责人: Praveen Kumar
• 金额: $ 5.92万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-06-15 至 2013-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1140198&HistoricalAwards=false
• 关键词: RAPID; Mississippi; Flood; 2011; Investigation

RAPID: Mississippi Flood of 2011 - Investigation of Initial Impact on the LandscapeEAR-1140198Praveen Kumar, Gary Parker, Jim Best, Marcelo Garcia, Bruce Rhoads, Michelle Wander, Jeff Nittrouer, Robert Darmody, Arthur Schmidt, Murugesu Sivapalan, Jonathan Greenberg (Univ. of California, Davis), Robert Holmes (USGS)AbstractThe objective of the proposed Rapid Response Research grant is to undertake field campaign, in-situ sampling, and Lidar survey of selected regions of the Lower Mississippi River and surrounding landscape impacted by the 2011 extreme flood. PIs interest is to understand how deliberate but uncontrolled levee breach at Birds Point, and engineered diversions at Morganza and Bonnet Carré spillways impact both the streams and the surrounding landscapes. In the proposed effort they plan to (1) characterize flood deposits by sampling sediment depth, depositional area, and sediment grain size distribution and stratigraphy; (2) investigate soil morphology and their properties such as soil organic carbon, pH, cation exchange capacity, texture, and bulk density; (3) characterize response of landscape form and structure at all three offtake sites by characterizing the bathymetry, flow, and sediment transport; and (4) evaluate landscape impact through Lidar survey near and downstream of the Mississippi and Ohio River Confluence including large sections of the Birds Point New Madrid (BPNM) floodway. The data collected will allow them to assess if large episodic events, such as the present Mississippi flood, shape the long-term form and function of rivers and the surrounding floodplains, and the timescale of the impact on the flow and transport dynamics. Studies using this data will assist in future planning of water and sediment diversions in the lower Mississippi River basin.

Rapid：2011年密西西比州洪水 - 调查最初对景观1140198的影响，Praveen Kumar，Gary Parker，Gary Parker，Jim Best，Marcelo Garcia，Marcelo Garcia，Bruce Rhoads，Michelle Wander，Jeff Nittrouer，Robert Darmody，Robert Darmody，Arthur Schmidt，Arthur Schmidt，Arthur Schmidt，Arthur Schmidt，MurugugeSu Sivapalan，Joine）福尔摩斯（USGS）摘要拟议的快速响应研究补助金的目标是对密西西比河下部河的选定地区及其周围的景观进行现场运动，现场抽样，并受到2011年极端洪水影响的景观。 PIS的兴趣是了解Birds Point的故意但不受控制的水平违规，并在Morganza和BonnetCarréPillways进行了设计的不同，影响了溪流和周围的景观。在提出的努力中，他们计划（1）通过对沉积物深度，沉积区域以及沉积物晶粒尺寸分布和层学来表征洪水沉积物； （2）研究土壤形态及其特性，例如土壤有机碳，pH，阳离子交换能力，质地和散装密度； （3）通过表征测深，流量和沉积物传输的表征，在所有三个卸料部位的景观形式和结构的响应中表征； （4）通过密西西比州和俄亥俄河汇合处附近和下游的激光雷达调查评估景观影响，包括大量鸟类点新马德里（BPNM）洪水。收集的数据将使他们能够评估大型事件事件（例如目前的密西西比州洪水）是否塑造了河流和周围洪泛区的长期形式和功能，以及对流动和运输动力学影响的时间表。使用这些数据的研究将有助于未来在密西西比河下游流域的水和沉积物转移计划。