| DOI: | 10.1002/2016GL068286
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| 论文题名: | Hyporheic exchange controlled by dynamic hydrologic boundary conditions |
| 作者: | Schmadel N.M.; Ward A.S.; Lowry C.S.; Malzone J.M.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9031
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| EISSN: | 1944-8762
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| 出版年: | 2016
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| 卷: | 43, 期:9 | | 起始页码: | 4408
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| 结束页码: | 4417
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| 语种: | 英语
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| 英文关键词: | diel fluctuation
; flux
; hyporheic flow path
; riparian aquifer
; time-variable boundary condition
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| Scopus关键词: | Aquifers
; Complex networks
; Fluxes
; Groundwater
; Groundwater flow
; Groundwater resources
; Stream flow
; Diel fluctuation
; Flow path
; Hydrologic boundaries
; Orders of magnitude
; Simulated ground water
; Spatial and temporal scale
; Time variable
; Time-varying boundary conditions
; Boundary conditions
; aquifer characterization
; diel variation
; earthquake hypocenter
; geomorphology
; groundwater flow
; groundwater-surface water interaction
; hillslope
; hydrological cycle
; hyporheic zone
; riparian zone
; stream channel
; valley
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| 英文摘要: | The relative roles of dynamic hydrologic forcing and geomorphology as controls on the timescales and magnitudes of stream-aquifer exchange and hyporheic flow paths are unknown but required for management of stream corridors. We developed a comprehensive framework relating diel hydrologic fluctuations to hyporheic exchange in the absence of geomorphic complexity. We simulated groundwater flow through an aquifer bounded by a straight stream and hillslope and under time-varying boundary conditions. We found that diel fluctuations can produce hyporheic flow path lengths and residence times that span orders of magnitude. With these results, hyporheic flow path residence times and lengths can be predicted from the timing and magnitude of diel fluctuations and valley slope. Finally, we demonstrated that dynamic hydrologic boundary conditions can produce spatial and temporal scales of hyporheic flow paths equivalent to those driven by many well-studied geomorphic features, indicating that these controls must be considered together in future efforts of upscaling to stream networks. © 2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84966378288&doi=10.1002%2f2016GL068286&partnerID=40&md5=74c817a7c30548284f2bb648db9cd78f
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/9994
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | School of Public and Environmental Affairs, Indiana University, Bloomington, IN, United States
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| Recommended Citation: | |
Schmadel N.M.,Ward A.S.,Lowry C.S.,et al. Hyporheic exchange controlled by dynamic hydrologic boundary conditions[J]. Geophysical Research Letters,2016-01-01,43(9).
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