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DOI | 10.1073/pnas.1712433114 |
Giant boulders and Last Interglacial storm intensity in the North Atlantic | |
Rovere, Alessio1; 39;Andrea, William J.2 | |
2017-11-14 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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ISSN | 0027-8424 |
出版年 | 2017 |
卷号 | 114期号:46页码:12144-12149 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; USA; Australia; New Zealand; Netherlands |
英文摘要 | As global climate warms and sea level rises, coastal areas will be subject to more frequent extreme flooding and hurricanes. Geologic evidence for extreme coastal storms during past warm periods has the potential to provide fundamental insights into their future intensity. Recent studies argue that during the Last Interglacial (MIS 5e, similar to 128-116 ka) tropical and extratropical North Atlantic cyclones may have been more intense than at present, and may have produced waves larger than those observed historically. Such strong swells are inferred to have created a number of geologic features that can be observed today along the coastlines of Bermuda and the Bahamas. In this paper, we investigate the most iconic among these features: massive boulders atop a cliff in North Eleuthera, Bahamas. We combine geologic field surveys, wave models, and boulder transport equations to test the hypothesis that such boulders must have been emplaced by storms of greater-than-historical intensity. By contrast, our results suggest that with the higher relative sea level (RSL) estimated for the Bahamas during MIS 5e, boulders of this size could have been transported by waves generated by storms of historical intensity. Thus, while the megaboulders of Eleuthera cannot be used as geologic proof for past "superstorms," they do show that with rising sea levels, cliffs and coastal barriers will be subject to significantly greater erosional energy, even without changes in storm intensity. |
英文关键词 | Last Interglacial Eemian climate change extreme waves superstorms |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000415173300046 |
WOS关键词 | INDUCED SEDIMENTARY STRUCTURES ; SEA-LEVEL ; PALEOCLIMATIC SIGNIFICANCE ; COASTAL DEPOSITS ; TSUNAMI DEPOSITS ; ELEUTHERA ISLAND ; CLIMATE MODEL ; BAHAMAS ; QUATERNARY ; FREQUENCY |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204818 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Bremen, Ctr Marine Environm Sci MARUM, D-28359 Bremen, Germany; 2.Leibniz Ctr Trop Marine Res ZMT, D-28359 Bremen, Germany; 3.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA; 4.Univ Queensland, Sch Earth & Environm Sci, Brisbane, Qld 4072, Australia; 5.Univ Auckland, Dept Civil & Environm Engn, Auckland 1010, New Zealand; 6.Royal Netherlands Inst Sea Res NIOZ, Dept Coastal Syst, NL-1790 AB Den Burg, Texel, Netherlands; 7.Univ Utrecht, NL-3512 JE Utrecht, Netherlands |
推荐引用方式 GB/T 7714 | Rovere, Alessio,39;Andrea, William J.. Giant boulders and Last Interglacial storm intensity in the North Atlantic[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2017,114(46):12144-12149. |
APA | Rovere, Alessio,&39;Andrea, William J..(2017).Giant boulders and Last Interglacial storm intensity in the North Atlantic.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,114(46),12144-12149. |
MLA | Rovere, Alessio,et al."Giant boulders and Last Interglacial storm intensity in the North Atlantic".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 114.46(2017):12144-12149. |
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