DOI: | 10.1002/2015GL067376
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论文题名: | An experimental approach to submarine canyon evolution |
作者: | Lai S.Y.J.; Gerber T.P.; Amblas D.
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刊名: | Geophysical Research Letters
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ISSN: | 0094-9186
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EISSN: | 1944-8917
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出版年: | 2016
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卷: | 43, 期:6 | 起始页码: | 2741
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结束页码: | 2747
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语种: | 英语
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英文关键词: | sanbox experiment
; sediment gravity flow
; submarine canyon evolution
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Scopus关键词: | Submarines
; Channel network
; Digital elevation model
; Experimental approaches
; Sandbox experiments
; Sediment gravity flow
; Shelf-slope break
; Submarine canyon
; Submarine slopes
; Computer integrated manufacturing
; digital elevation model
; experimental study
; geomorphological response
; gravity flow
; relief
; seafloor spreading
; shape
; shelf break
; slope failure
; submarine canyon
; submarine slope
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英文摘要: | We present results from a sandbox experiment designed to investigate how sediment gravity flows form and shape submarine canyons. In the experiment, unconfined saline gravity flows were released onto an inclined sand bed bounded on the downstream end by a movable floor that was used to increase relief during the experiment. In areas unaffected by the flows, we observed featureless, angle-of-repose submarine slopes formed by retrogressive breaching processes. In contrast, areas influenced by gravity flows cascading across the shelf break were deeply incised by submarine canyons with well-developed channel networks. Normalized canyon long profiles extracted from successive high-resolution digital elevation models collapse to a single profile when referenced to the migrating shelf-slope break, indicating self-similar growth in the relief defined by the canyon and intercanyon profiles. Although our experimental approach is simple, the resulting canyon morphology and behavior appear similar in several important respects to that observed in the field. ©2016. American Geophysical Union. All Rights Reserved. |
URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84977980919&doi=10.1002%2f2015GL067376&partnerID=40&md5=042e24ebf8251cf5d3d71ee693197bd0
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Citation statistics: |
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资源类型: | 期刊论文
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标识符: | http://119.78.100.158/handle/2HF3EXSE/10149
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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: | Department of Hydraulic and Ocean Engineering, National Cheng Kung University, Tainan, Taiwan
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Recommended Citation: |
Lai S.Y.J.,Gerber T.P.,Amblas D.. An experimental approach to submarine canyon evolution[J]. Geophysical Research Letters,2016-01-01,43(6).
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