Collaborative Research: Understanding deltas through the lens of their channel networks
合作研究:通过渠道网络的视角了解三角洲
基本信息
- 批准号:1812019
- 负责人:
- 金额:$ 12.78万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2018
- 资助国家:美国
- 起止时间:2018-07-15 至 2022-06-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Sediment deposition at the coastline creates channels that spread out into a network and form a river delta. Deltas are home to large populations, valuable ports, and natural resources, but they are threatened by sea level rise, upstream dam development, and resource exploration. Sensitivity to these threats depends on the delta channels that move water and sediment, yet it is not clear what controls the arrangement of these channels. This research will use network analysis of numerically simulated and field deltas to test how ocean waves, tides, and floods influence the configuration of delta channels and their response to environmental change. The team will engage graduate students through summer workshops and train them in cross-disciplinary methods to address problems in science, industry, and policy-related fields. Delta channel networks exhibit complex patterns that are key for understanding delta self-maintenance and resilience to external perturbations. The proposed research aims to study deltas through the lens of their delta channel networks via a three-pronged approach based on graph-theory, numerical modeling, and the analysis of more than 60 field deltas of diverse hydroclimatic environments and levels of anthropogenic influence. The ultimate goal is to advance our understanding of delta morphodynamics and response to change by: (1) relating network properties to the underlying physical processes, (2) proposing a delta classification framework, and (3) exploring delta self-organization in terms of optimality principles and interpreting possible deviations.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.
海岸线上的沉积物形成了一个网络,形成了一个河流三角洲。三角洲是大量人口、宝贵港口和自然资源的家园,但它们受到海平面上升、上游水坝开发和资源勘探的威胁。对这些威胁的敏感性取决于移动水和沉积物的三角洲通道,但目前还不清楚是什么控制着这些通道的排列。本研究将使用数值模拟和现场三角洲的网络分析来测试海浪,潮汐和洪水如何影响三角洲通道的配置及其对环境变化的响应。该团队将通过夏季研讨会吸引研究生,并对他们进行跨学科方法的培训,以解决科学,工业和政策相关领域的问题。三角洲通道网络表现出复杂的模式,是理解三角洲自我维护和抵御外部扰动的关键。拟议的研究旨在研究三角洲通过透镜的三角洲通道网络通过三管齐下的方法,基于图论,数值模拟,并分析了60多个领域的三角洲不同的水文气候环境和人为影响的水平。最终目标是通过以下方式促进我们对三角洲形态动力学和对变化的反应的理解:(1)将网络属性与底层物理过程相关联,(2)提出一个delta分类框架,(3)探索delta self-该奖项反映了NSF的法定使命,并被认为值得通过使用基金会的学术价值和更广泛的影响审查标准。
项目成果
期刊论文数量(8)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Spatial and temporal patterns of land loss in the Lower Mississippi River Delta from 1983 to 2016
1983年至2016年密西西比河下游三角洲土地流失的时空格局
- DOI:10.1016/j.rse.2020.112046
- 发表时间:2020
- 期刊:
- 影响因子:13.5
- 作者:Roy, Samapriya;Robeson, Scott M.;Ortiz, Alejandra C.;Edmonds, Douglas A.
- 通讯作者:Edmonds, Douglas A.
Influence of Floods, Tides, and Vegetation on Sediment Retention in Wax Lake Delta, Louisiana, USA
- DOI:10.1029/2019jf005316
- 发表时间:2020-01
- 期刊:
- 影响因子:0
- 作者:E. Olliver;D. Edmonds;J. Shaw
- 通讯作者:E. Olliver;D. Edmonds;J. Shaw
Global-scale human impact on delta morphology has led to net land area gain
- DOI:10.1038/s41586-019-1905-9
- 发表时间:2020-01-01
- 期刊:
- 影响因子:64.8
- 作者:Nienhuis, J. H.;Ashton, A. D.;Tornqvist, T. E.
- 通讯作者:Tornqvist, T. E.
Backwater controls on the evolution and avulsion of the Qingshuigou channel on the Yellow River Delta
回水对黄河三角洲清水沟航道演变与撕脱的控制
- DOI:10.1016/j.geomorph.2019.02.032
- 发表时间:2019-05
- 期刊:
- 影响因子:3.9
- 作者:Zheng Shan;Edmonds Douglas A.;Wu Baosheng;Han Shasha
- 通讯作者:Han Shasha
First‐Order River Delta Morphology Is Explained by the Sediment Flux Balance From Rivers, Waves, and Tides
河流、波浪和潮汐的沉积物通量平衡解释了一级河三角洲形态
- DOI:10.1029/2022gl100355
- 发表时间:2022
- 期刊:
- 影响因子:5.2
- 作者:Broaddus, C. M.;Vulis, L. M.;Nienhuis, J. H.;Tejedor, A.;Brown, J.;Foufoula‐Georgiou, E.;Edmonds, D. A.
- 通讯作者:Edmonds, D. A.
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Doug Edmonds其他文献
Doug Edmonds的其他文献
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{{ truncateString('Doug Edmonds', 18)}}的其他基金
Collaborative Research: Unraveling the Controls on the Origin and Environmental Functioning of Oxbow Lakes
合作研究:揭示 Oxbow 湖的起源和环境功能的控制
- 批准号:
2321056 - 财政年份:2023
- 资助金额:
$ 12.78万 - 项目类别:
Standard Grant
Combining Theory, Deep Learning, and Lidar to Test Climate and Slope Controls on Tree Throw Production on Hillslopes
结合理论、深度学习和激光雷达来测试山坡植树生产的气候和坡度控制
- 批准号:
2218293 - 财政年份:2022
- 资助金额:
$ 12.78万 - 项目类别:
Standard Grant
TESTING MODELS FOR RIVER AVULSION STYLE WITH REMOTE SENSING DATA AND NUMERICAL SIMULATIONS
河流撕扯式遥感数据与数值模拟测试模型
- 批准号:
1911321 - 财政年份:2019
- 资助金额:
$ 12.78万 - 项目类别:
Standard Grant
Coastal SEES Collaborative Research: Changes in actual and perceived coastal flood risks due to river management strategies
沿海 SEES 合作研究:河流管理策略导致的实际和感知的沿海洪水风险的变化
- 批准号:
1426997 - 财政年份:2014
- 资助金额:
$ 12.78万 - 项目类别:
Continuing Grant
Collaborative Research: Catchments and Coastlines--The Influence of Sediment Load and Type on Delta Morphodynamics and Deposits
合作研究:流域和海岸线--沉积物负荷和类型对三角洲形态动力学和沉积物的影响
- 批准号:
1329542 - 财政年份:2012
- 资助金额:
$ 12.78万 - 项目类别:
Standard Grant
Collaborative Research: Defining controls on incisional avulsions in alluvial basins
合作研究:确定冲积盆地切口撕脱的控制措施
- 批准号:
1249330 - 财政年份:2012
- 资助金额:
$ 12.78万 - 项目类别:
Standard Grant
Collaborative Research: Defining controls on incisional avulsions in alluvial basins
合作研究:确定冲积盆地切口撕脱的控制措施
- 批准号:
1123847 - 财政年份:2011
- 资助金额:
$ 12.78万 - 项目类别:
Standard Grant
Collaborative Research: Catchments and Coastlines--The Influence of Sediment Load and Type on Delta Morphodynamics and Deposits
合作研究:流域和海岸线--沉积物负荷和类型对三角洲形态动力学和沉积物的影响
- 批准号:
1061380 - 财政年份:2011
- 资助金额:
$ 12.78万 - 项目类别:
Standard Grant
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