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DOI	10.5194/hess-23-4397-2019
	A review of methods for measuring groundwater-surface water exchange in braided rivers
	Coluccio K.; Morgan L.K.
发表日期	2019
ISSN	1027-5606
起始页码	4397
结束页码	4417
卷号	23 期号:10
英文摘要	Braided rivers, while uncommon internationally, are significant in terms of their unique ecosystems and as vital freshwater resources at locations where they occur. With an increasing awareness of the connected nature of surface water and groundwater, there have been many studies examining groundwater-surface water exchange in various types of waterbodies, but significantly less research has been conducted in braided rivers. Thus, there is currently limited understanding of how characteristics unique to braided rivers, such as channel shifting, expanding and narrowing margins, and a high degree of heterogeneity affect groundwater-surface water flow paths. This article provides an overview of characteristics specific to braided rivers, including a map showing the regions where braided rivers are mainly found at the global scale: Alaska, Canada, the Japanese and European Alps, the Himalayas, Russia, and New Zealand. To the authors' knowledge, this is the first map of its kind. This is followed by a review of prior studies that have investigated groundwater-surface water interactions in braided rivers and their associated aquifers. The various methods used to characterise these processes are discussed with emphasis on their effectiveness in achieving the studies' objectives and their applicability in braided rivers. We also discuss additional methods that appear promising to apply in braided river settings. The aim is to provide guidance on methodologies most suitable for future work in braided rivers. In many cases, previous studies found a multi-method approach useful to produce more robust results and compare data collected at various scales. Given the challenges of working directly in braided rivers, there is considerable scope for the increased use of remote sensing techniques. There is also opportunity for new approaches to modelling braided rivers using integrated techniques that incorporate the complex river bed terrain and geomorphology of braided rivers explicitly. We also identify a critical need to improve the conceptual understanding of hyporheic exchange in braided rivers, rates of recharge to and from braided rivers, and historical patterns of dry and low-flow periods in these rivers. © 2019 Author(s).
语种	英语
scopus关键词	Aquifers; Flow of water; Groundwater resources; Hydrogeology; Remote sensing; Conceptual understanding; Fresh water resources; Ground water-surface water interactions; Groundwater-surface waters; Groundwater-surface-water exchanges; Integrated techniques; Multi-method approach; Remote sensing techniques; Rivers; braided river; groundwater-surface water interaction; hyporheic zone; literature review; low flow; methodology; water exchange; Alaska; Alps; Canada; Europe; New Zealand; Russian Federation; United States
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159580
作者单位	Coluccio, K., Waterways Centre for Freshwater Management, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand; Morgan, L.K., Waterways Centre for Freshwater Management, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand, College of Science and Engineering, Flinders University, G.P.O. Box 2100, Adelaide, SA 5001, Australia
推荐引用方式 GB/T 7714	Coluccio K.,Morgan L.K.. A review of methods for measuring groundwater-surface water exchange in braided rivers[J],2019,23(10).
APA	Coluccio K.,&Morgan L.K..(2019).A review of methods for measuring groundwater-surface water exchange in braided rivers.Hydrology and Earth System Sciences,23(10).
MLA	Coluccio K.,et al."A review of methods for measuring groundwater-surface water exchange in braided rivers".Hydrology and Earth System Sciences 23.10(2019).