| DOI: | 10.1002/2014GL059616
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| 论文题名: | Scaling coastal dune elevation changes across storm-impact regimes |
| 作者: | Long J.W.; de Bakker A.T.M.; Plant N.G.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-10115
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| EISSN: | 1944-9846
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| 出版年: | 2014
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| 卷: | 41, 期:8 | | 起始页码: | 2899
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| 结束页码: | 2906
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| 语种: | 英语
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| 英文关键词: | dune erosion
; inundation
; overwash
; sediment transport
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| Scopus关键词: | Digital storage
; Erosion
; Floods
; Forecasting
; Sediment transport
; Water levels
; Coastal population
; Dune erosion
; Future predictions
; inundation
; Linear relationships
; Morphological interactions
; Overwash
; Scaling parameter
; Storms
; barrier island
; coastal erosion
; coastal morphology
; dune
; elevation
; extreme event
; flooding
; parameterization
; prediction
; sediment transport
; storm surge
; water level
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| 英文摘要: | Extreme storms drive change in coastal areas, including destruction of dune systems that protect coastal populations. Data from four extreme storms impacting four geomorphically diverse barrier islands are used to quantify dune elevation change. This change is compared to storm characteristics to identify variability in dune response, improve understanding of morphological interactions, and provide estimates of scaling parameters applicable for future prediction. Locations where total water levels did not exceed the dune crest experienced elevation change of less than 10%. Regions where wave-induced water levels exceeded the dune crest exhibited a positive linear relationship between the height of water over the dune and the dune elevation change. In contrast, a negative relationship was observed when surge exceeded the dune crest. Results indicate that maximum dune elevation, and therefore future vulnerability, may be more impacted from lower total water levels where waves drive sediment over the dune rather than surge-dominated flooding events. Key Points Dune erosion by storm overwash can increase vulnerability more than inundation Variable dune erosion response is related to maximum dune freeboard during storm Increasing storm surge does not always relate to an increase in dune erosion ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84899034448&doi=10.1002%2f2014GL059616&partnerID=40&md5=b35b6b0179e4368cdff30725c3ed6450
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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/7379
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| Appears in Collections: | 气候减缓与适应
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作者单位: | USGS Coastal and Marine Geology Program, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL, United States
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| Recommended Citation: | |
Long J.W.,de Bakker A.T.M.,Plant N.G.. Scaling coastal dune elevation changes across storm-impact regimes[J]. Geophysical Research Letters,2014-01-01,41(8).
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