Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR026057 |
Fine Sediment Deposition and Filtration Under Losing and Gaining Flow Conditions: A Particle Tracking Model Approach | |
Preziosi-Ribero, Antonio1; Packman, Aaron I.2; Escobar-Vargas, Jorge A.1,3; Phillips, Colin B.2; Donado, Leonardo David1; Arnon, Shai4 | |
2020-02-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2020 |
卷号 | 56期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | Colombia; USA; Israel |
英文摘要 | Fine particle deposition within riverbeds plays a major role in riverine ecology and biogeochemistry by altering hyporheic exchange flux. Moreover, it is ubiquitous within streams and rivers across all flow stages. However, the dynamics of fine particle deposition are still not completely understood in rivers, and continuum models like the advection dispersion equation require modifications to represent the processes accurately. To enhance understanding of fine particle dynamics, we developed a novel numerical particle tracking model that simulates fine particle deposition as a stochastic process under losing, neutral, and gaining streamflow conditions. These flow conditions generate three different velocity profiles by combining the free surface and groundwater flows. In addition, a novel aspect of our model is the storage of filtered particles to estimate concentration fields within the bed. Our simulated results are qualitatively compared with previous laboratory flume experimental results of kaolinite deposition under similar conditions. The model indicates that fine particle deposition patterns and residence time functions depend heavily on the exchange flux between stream and groundwater, as well as bed filtration properties as the deposition of particles occurs at greater depths in the losing stream condition than in the neutral and gaining cases. Therefore, the spatial pattern of particle deposition is a direct result of pore water velocity profiles, while the concentration depends on filtration dynamics within the bed. |
英文关键词 | sediment deposition groundwater surface water interaction hyporheic exchange particle tracking |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000535672800029 |
WOS关键词 | PARTICULATE ORGANIC-MATTER ; STREAM-SUBSURFACE EXCHANGE ; HYPORHEIC EXCHANGE ; BED FORMS ; HYDRAULIC CONDUCTIVITY ; NONSORBING SOLUTES ; COLLOID TRANSPORT ; RESIDENCE TIME ; LOW-ENERGY ; WATER |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/280510 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Nacl Colombia, Fac Ingn, Bogota, Colombia; 2.Northwestern Univ, Dept Civil & Environm Engn, Evanston, IL USA; 3.Pontificia Univ Javeriana, Dept Ingn Civil, Bogota, Colombia; 4.Ben Gurion Univ Negev, J Blaustein Inst Deseart Res, Zuckerberg Inst Water Res, Beer Sheva, Israel |
推荐引用方式 GB/T 7714 | Preziosi-Ribero, Antonio,Packman, Aaron I.,Escobar-Vargas, Jorge A.,et al. Fine Sediment Deposition and Filtration Under Losing and Gaining Flow Conditions: A Particle Tracking Model Approach[J]. WATER RESOURCES RESEARCH,2020,56(2). |
APA | Preziosi-Ribero, Antonio,Packman, Aaron I.,Escobar-Vargas, Jorge A.,Phillips, Colin B.,Donado, Leonardo David,&Arnon, Shai.(2020).Fine Sediment Deposition and Filtration Under Losing and Gaining Flow Conditions: A Particle Tracking Model Approach.WATER RESOURCES RESEARCH,56(2). |
MLA | Preziosi-Ribero, Antonio,et al."Fine Sediment Deposition and Filtration Under Losing and Gaining Flow Conditions: A Particle Tracking Model Approach".WATER RESOURCES RESEARCH 56.2(2020). |
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