气候变化领域集成服务门户(CCPortal): Deglaciation controls on sediment yield: Towards capturing spatio-temporal variability

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DOI	10.1016/j.earscirev.2021.103809
	Deglaciation controls on sediment yield: Towards capturing spatio-temporal variability
	Carrivick J.L.; Tweed F.S.
发表日期	2021
ISSN	0012-8253
卷号	221
英文摘要	Accelerated glacier and ice sheet retreat and thinning in recent decades has profound consequences for catchment sediment supply with attendant repercussions for nutrient cycling, carbon fluxes and natural resource management. This paper evaluates the impacts of deglaciation on sediment yields from glaciated, deglaciating and recently-deglaciated catchments. It summarises the key characteristics of sediment yields from glaciated catchments to be that they span five orders of magnitude, vary with latitude and are greatest in high-relief and tectonically-active regions. We review the available quantitative data on sediment yields from glaciated catchments and we comment extensively on spatio-temporal variability to understand global to local and inter- and intra-catchment controls. Significant gaps in the available sediment yield data and also in our knowledge of sediment sources, pathways and sinks are identified. We constrain a set of novel approaches by which these gaps could be addressed. In particular, we suggest that the opportunities presented by emerging datasets and analytical methods enabling landcover changes, Digital Elevation Model (DEM) change detection, analyses of connectivity and analyses of sediment plumes are exciting and these approaches should become practical tools for understanding intra- and inter-catchment sediment yields from deglaciating landscapes. We showcase preliminary studies utilising these datasets and they are used to formulate hypotheses designed to stimulate further research. © 2021 Elsevier B.V.
英文关键词	DEM; Glacier; Landcover; Satellite image; Sediment; Water
语种	英语
来源期刊	EARTH-SCIENCE REVIEWS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/209182
作者单位	School of Geography and water@leeds, University of Leeds, Woodhouse Lane, Leeds, West Yorkshire LS2 9JT, United Kingdom; Geography, Staffordshire University, College Road, Stoke-on-Trent, Staffordshire ST4 2DE, United Kingdom
推荐引用方式 GB/T 7714	Carrivick J.L.,Tweed F.S.. Deglaciation controls on sediment yield: Towards capturing spatio-temporal variability[J],2021,221.
APA	Carrivick J.L.,&Tweed F.S..(2021).Deglaciation controls on sediment yield: Towards capturing spatio-temporal variability.EARTH-SCIENCE REVIEWS,221.
MLA	Carrivick J.L.,et al."Deglaciation controls on sediment yield: Towards capturing spatio-temporal variability".EARTH-SCIENCE REVIEWS 221(2021).