| DOI: | 10.1002/2013GL058231
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| 论文题名: | Wave reworking of abandoned deltas |
| 作者: | Nienhuis J.H.; Ashton A.D.; Roos P.C.; Hulscher S.J.M.H.; Giosan L.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8369
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| EISSN: | 1944-8100
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| 出版年: | 2013
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| 卷: | 40, 期:22 | | 起始页码: | 5899
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| 结束页码: | 5903
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| 语种: | 英语
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| 英文关键词: | river delta
; shoreline model
; wave reworking
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| Scopus关键词: | Characteristic modes
; Fluvial sediment
; Geologic process
; Human activities
; River deltas
; Shoreline evolutions
; Shoreline modeling
; Wave characteristics
; Coastal zones
; Sediment transport
; Rivers
; abandoned land
; avulsion
; delta
; deltaic sedimentation
; fluvial deposit
; human activity
; reworking
; sediment transport
; shoreline change
; Ebro River
; Nile River
; Rhone River
; Spain
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| 英文摘要: | River deltas and individual delta lobes frequently face reduction of sediment supply, either from the geologic process of river avulsion or, more recently, due to human activities such as river damming. Using a process-based shoreline evolution model, we investigate wave reworking of delta shorelines after fluvial input elimination. Model results suggest that littoral sediment transport can result in four characteristic modes of delta abandonment, ranging from diffusional smoothing of the delta (or delta lobe) to the development of recurved spits. A straightforward analysis of delta shape and wave characteristics provides a framework for predicting the mode of delta abandonment. The observed morphologies of historically abandoned delta lobes, including those of the Nile, Ebro, and Rhone rivers, fit within this framework. Our results provide quantitative insight into the potential evolution of active delta environments in light of future extreme reduction of fluvial sediment input. ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84887688382&doi=10.1002%2f2013GL058231&partnerID=40&md5=1f8eeb4d9b19d4c3393e2e727af83cbe
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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/5633
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Geology and Geophysics Department, Woods Hole Oceanographic Institution, MS 22, 266 Woods Hole Rd., Woods Hole, MA 02543, United States
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| Recommended Citation: | |
Nienhuis J.H.,Ashton A.D.,Roos P.C.,et al. Wave reworking of abandoned deltas[J]. Geophysical Research Letters,2013-01-01,40(22).
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