Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018WR024609 |
Fragmentation of the Hyporheic Zone Due to Regional Groundwater Circulation | |
Mojarrad, B. B.1; Riml, J.1; Worman, A.1; Laudon, H.2 | |
2019-02-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2019 |
卷号 | 55期号:2页码:1242-1262 |
文章类型 | Article |
语种 | 英语 |
国家 | Sweden |
英文摘要 | By use of numerical modeling and field observations, this work quantified the effects of catchment-scale upwelling groundwater on the hyporheic (below stream) fluxes over a wide range of spatial scales. A groundwater flow model was developed that specifically accounted for the hydrostatic and dynamic head fluctuations induced by the streambed topography. Although the magnitudes and relative importance of these streambed-induced fluxes were found to be highly sensitive to site-specific hydromorphological properties, we showed that streambed topographic structures exert a predominant control on the magnitude of hyporheic exchange fluxes in a Swedish boreal catchment. The magnitude of the exchange intensity evaluated at the streambed interface was found to be dominated by the streambed-induced hydraulic head across stream order. However, the catchment-scale groundwater flow field substantially affected the distribution of groundwater discharge points and thus decreased the fragmentation of the hyporheic zone, specifically by shifting the cumulative density function toward larger areas of coherent upwelling at the streambed interface. This work highlights the spectrum of spatial scales affecting the surface water-groundwater exchange patterns and resolves the roles of key mechanisms in controlling the fragmentation of the hyporheic zone. |
英文关键词 | GW-SW interaction hyporheic zone multiscale modeling fragmentation of upwelling zones |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000461858900020 |
WOS关键词 | SURFACE WATER INTERACTIONS ; BED FORMS ; NONSORBING SOLUTES ; EXCHANGE PROCESSES ; STREAM ; DISCHARGE ; RIVER ; TRANSPORT ; AQUIFER ; FLOW |
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/181291 |
专题 | 资源环境科学 |
作者单位 | 1.KTH Royal Inst Technol, Dept Sustainable Dev Environm Sci & Engn, Stockholm, Sweden; 2.Swedish Univ Agr Sci, Dept Forest Ecol & Management, Umea, Sweden |
推荐引用方式 GB/T 7714 | Mojarrad, B. B.,Riml, J.,Worman, A.,et al. Fragmentation of the Hyporheic Zone Due to Regional Groundwater Circulation[J]. WATER RESOURCES RESEARCH,2019,55(2):1242-1262. |
APA | Mojarrad, B. B.,Riml, J.,Worman, A.,&Laudon, H..(2019).Fragmentation of the Hyporheic Zone Due to Regional Groundwater Circulation.WATER RESOURCES RESEARCH,55(2),1242-1262. |
MLA | Mojarrad, B. B.,et al."Fragmentation of the Hyporheic Zone Due to Regional Groundwater Circulation".WATER RESOURCES RESEARCH 55.2(2019):1242-1262. |
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