DOI: 10.1016/j.earscirev.2019.04.001
论文题名: Rock glaciers and mountain hydrology: A review
作者: Jones D.B. ; Harrison S. ; Anderson K. ; Whalley W.B.
刊名: Earth Science Reviews
ISSN: 00128252
出版年: 2019
卷: 193 起始页码: 66
结束页码: 90
语种: 英语
中文关键词: Climate change
; Mountain cryosphere
; Mountain hydrology
; Rock glaciers
; Water resources
; Water storage
英文关键词: climate change
; cryosphere
; glacial hydrology
; mountain region
; rock glacier
; water resource
; water storage
英文摘要: In mountainous regions, climate change threatens cryospheric water resources, and understanding all components of the hydrological cycle is necessary for effective water resource management. Rock glaciers are climatically more resilient than glaciers and contain potentially hydrologically valuable ice volumes, and yet have received less attention, even though rock glacier hydrological importance may increase under future climate warming. In synthesising data from a range of global studies, we provide the first comprehensive evaluation of the hydrological role played by rock glaciers. We evaluate hydrological significance over a range of temporal and spatial scales, alongside the complex multiple hydrological processes with which rock glaciers can interact diurnally, seasonally, annually, decadally and both at local and regional extents. We report that although no global-extent, complete inventory for rock glaciers exists currently, recent research efforts have greatly elaborated spatial coverage. Using these research papers, we synthesise information on rock glacier spatial distribution, morphometric characteristics, surface and subsurface features, ice-storage and hydrological flow dynamics, water chemistry, and future resilience, from which we provide the first comprehensive evaluation of their hydrological contribution. We identify and discuss long-, intermediate- and short-term timescales for rock glacier storage, allowing a more balanced assessment of the contrasting perspectives regarding the relative significance of rock glacier-derived hydrological contributions compared to other water sources. We show that further empirical observations are required to gain a deeper hydrological understanding of rock glaciers, in terms of (i) their genesis and geomorphological dynamics (ii) total ice/water volume; (iii) water discharge; and (iv) water quality. Lastly, we hypothesise that at decadal and longer timescales, under future climate warming, degradation of ice within rock glaciers may represent an increasing hydrological contribution to downstream regions, and thus increased hydrological significance while rock glacier water stores persist. © 2019 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/165835
Appears in Collections: 气候变化与战略
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作者单位: College of Life and Environmental Sciences, University of Exeter, Penryn Campus, Penryn, Cornwall, TR10 9EZ, United Kingdom; Environment and Sustainability Institute, University of Exeter, Penryn Campus, Penryn, Cornwall, TR10 9EZ, United Kingdom; Department of Geography, The University of Sheffield, Sheffield, S10 2TN, United Kingdom
Recommended Citation:
Jones D.B.,Harrison S.,Anderson K.,et al. Rock glaciers and mountain hydrology: A review[J]. Earth Science Reviews,2019-01-01,193