DOI: 10.1002/2014GL059816
论文题名: Symmetry, randomness, and process in the structure of branched channel networks
作者: Shelef E. ; Hilley G.E.
刊名: Geophysical Research Letters
ISSN: 0094-10031
EISSN: 1944-9762
出版年: 2014
卷: 41, 期: 10 起始页码: 3485
结束页码: 3493
语种: 英语
英文关键词: channel networks
; erosional processes
; landscape evolution
; random networks
; symmetry
Scopus关键词: Crystal symmetry
; Erosion
; Branched structures
; Channel network
; Continental scale
; Erosional process
; Landscape evolutions
; Multi-scale structures
; Random network
; Temporal evolution
; Random processes
; channel
; erosion
; landscape evolution
; spatial distribution
; symmetry
; temporal evolution
; topology
英文摘要: The branched structure of channel networks has a primary impact on the spatial distribution of elevation, water, and life across Earth's surface from the hillslope to the continental scale and is also observed on other planets. However, the link between this dendritic multiscale structure and the erosional processes that sculpt it has remained elusive for more than six decades. In fact, many topologic measures fail to distinguish natural networks from those generated by random walks. Here we show that a fundamental multiscale topologic symmetry is ingrained into the structure of these networks and reflects the equal elevation drop spanned by flows that split at the drainage divide and meet again downslope. We demonstrate that this symmetry distinguishes random-walk networks from natural ones, captures the temporal evolution of these networks, and divulges information about the processes that shape them. © 2014. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84902250308&doi=10.1002%2f2014GL059816&partnerID=40&md5=1d48b6109506d789d51e8ea9f4149295
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7295
Appears in Collections: 气候减缓与适应
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作者单位: Department of Geological and Environmental Sciences, Stanford University, Stanford, CA, United States
Recommended Citation:
Shelef E.,Hilley G.E.. Symmetry, randomness, and process in the structure of branched channel networks[J]. Geophysical Research Letters,2014-01-01,41(10).