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DOI: 10.1002/2016GL068898
论文题名:
The graded alluvial river: Profile concavity and downstream fining
作者: Blom A.; Viparelli E.; Chavarrías V.
刊名: Geophysical Research Letters
ISSN: 0094-9558
EISSN: 1944-9289
出版年: 2016
卷: 43, 期:12
起始页码: 6285
结束页码: 6293
语种: 英语
英文关键词: downstream fining ; particle abrasion ; profile concavity ; river longitudinal profile ; selective transport
Scopus关键词: Abrasion ; Grain size and shape ; Sea level ; Tribology ; Downstream fining ; Longitudinal profile ; Particle abrasion ; Profile concavity ; Selective transport ; Rivers
英文摘要: There has been quite some debate on the relative importance of particle abrasion and grain size selective transport regarding the river profile form and the associated grain size trends in a graded alluvial stream. Here we present new theoretical equations for the graded alluvial river profile that account for the effects of particle abrasion and grain size selective transport in the absence of subsidence, uplift, and sea level change. Under graded conditions we find that abrasion results in a mild profile concavity and downstream fining, whereas under aggradational conditions grain size selective transport can lead to large spatial changes in channel slope and bed surface mean grain size. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84977552268&doi=10.1002%2f2016GL068898&partnerID=40&md5=4b92c6e8060757f5b413f90dc8fd7edc
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10521
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: Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft, Netherlands

Recommended Citation:
Blom A.,Viparelli E.,Chavarrías V.. The graded alluvial river: Profile concavity and downstream fining[J]. Geophysical Research Letters,2016-01-01,43(12).
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