Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41586-018-0172-5 |
Climatic control of Mississippi River flood hazard amplified by river engineering | |
Munoz, Samuel E.1; 39;Donnell, Michelle2 | |
2018-04-05 | |
发表期刊 | NATURE
![]() |
ISSN | 0028-0836 |
EISSN | 1476-4687 |
出版年 | 2018 |
卷号 | 556期号:7699页码:95-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA; England |
英文摘要 | Over the past century, many of the world's major rivers have been modified for the purposes of flood mitigation, power generation and commercial navigation(1). Engineering modifications to the Mississippi River system have altered the river's sediment levels and channel morphology(2), but the influence of these modifications on flood hazard is debated(3-5). Detecting and attributing changes in river discharge is challenging because instrumental streamflow records are often too short to evaluate the range of natural hydrological variability before the establishment of flood mitigation infrastructure. Here we show that multi-decadal trends of flood hazard on the lower Mississippi River are strongly modulated by dynamical modes of climate variability, particularly the El Nino-Southern Oscillation and the Atlantic Multidecadal Oscillation, but that the artificial channelization (confinement to a straightened channel) has greatly amplified flood magnitudes over the past century. Our results, based on a multi-proxy reconstruction of flood frequency and magnitude spanning the past 500 years, reveal that the magnitude of the 100-year flood (a flood with a 1 per cent chance of being exceeded in any year) has increased by 20 per cent over those five centuries, with about 75 per cent of this increase attributed to river engineering. We conclude that the interaction of human alterations to the Mississippi River system with dynamical modes of climate variability has elevated the current flood hazard to levels that are unprecedented within the past five centuries. |
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:000429103300041 |
WOS关键词 | ATLANTIC MULTIDECADAL OSCILLATION ; AD ; EVENTS ; DELTA ; ENSO |
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/202903 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Woods Hole Oceanog Inst, Dept Geol & Geophys, Woods Hole, MA 02543 USA; 2.Northeastern Univ, Marine Sci Ctr, Dept Marine & Environm Sci, Nahant, MA 01908 USA; 3.Northeastern Univ, Dept Civil & Environm Engn, Boston, MA 02115 USA; 4.Univ Alabama, Dept Geog, Tuscaloosa, AL 35401 USA; 5.Southern Illinois Univ, Dept Geog & Environm Resources, Carbondale, IL 62901 USA; 6.Coastal Carolina Univ, Dept Marine Sci, Conway, SC 29526 USA; 7.Univ Liverpool, Dept Geog & Planning, Liverpool L69 7ZT, Merseyside, England; 8.Texas A&M Univ, Dept Oceanog, College Stn, TX 77840 USA |
推荐引用方式 GB/T 7714 | Munoz, Samuel E.,39;Donnell, Michelle. Climatic control of Mississippi River flood hazard amplified by river engineering[J]. NATURE,2018,556(7699):95-+. |
APA | Munoz, Samuel E.,&39;Donnell, Michelle.(2018).Climatic control of Mississippi River flood hazard amplified by river engineering.NATURE,556(7699),95-+. |
MLA | Munoz, Samuel E.,et al."Climatic control of Mississippi River flood hazard amplified by river engineering".NATURE 556.7699(2018):95-+. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论