Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016GL072070 |
Elevation change and stability on a prograding delta | |
Wagner, Wayne1; Lague, Dimitri2; Mohrig, David1; Passalacqua, Paola3; Shaw, John4; Moffett, Kevan5 | |
2017-02-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; France |
英文摘要 | Coastal wetland systems are among the most dynamic landscapes on Earth's surface; however, interrelated processes create wetland platforms that are relatively constant in space and time. Theoretically, "stable" elevations should maintain themselves through time if the balance of processes creating that elevation remains unchanged. At Louisiana's prograding Wax Lake Delta, we measure landscape change between 2009 and 2013, quantifying volumetric changes to the delta, subaerial slope adjustment, and an equilibrium elevation of 0.56 m North American Vertical Datum of 1988 (where elevation change, on average, is zero), around which elevations fluctuate. We calculate a system average "equilibrium time scale" of 16 years to describe how long locations will take to approach the stable elevation. This time scale increases as a function of distance from channel edge. Peaks in elevation probability density functions can form for multiple reasons and do not require stability; e.g., peaks can temporarily form at elevations where elevation change rate is locally minimum. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000396411100020 |
WOS关键词 | SEA-LEVEL RISE ; MISSISSIPPI DELTA ; COASTAL WETLANDS ; STABLE STATES ; SUBSIDENCE ; VEGETATION ; LOUISIANA ; RESTORATION ; COMPACTION ; LANDSCAPE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/28570 |
专题 | 气候变化 |
作者单位 | 1.Univ Texas Austin, Dept Geol Sci, Austin, TX 78712 USA; 2.Univ Rennes 1, CNRS, UMR 6118, Geosci Rennes, Rennes, France; 3.Univ Texas Austin, Dept Civil Architectural & Environm Engn, Austin, TX 78712 USA; 4.Univ Arkansas, Dept Geosci, Fayetteville, AR 72701 USA; 5.Washington State Univ Vancouver, Sch Environm, Vancouver, WA USA |
推荐引用方式 GB/T 7714 | Wagner, Wayne,Lague, Dimitri,Mohrig, David,et al. Elevation change and stability on a prograding delta[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(4). |
APA | Wagner, Wayne,Lague, Dimitri,Mohrig, David,Passalacqua, Paola,Shaw, John,&Moffett, Kevan.(2017).Elevation change and stability on a prograding delta.GEOPHYSICAL RESEARCH LETTERS,44(4). |
MLA | Wagner, Wayne,et al."Elevation change and stability on a prograding delta".GEOPHYSICAL RESEARCH LETTERS 44.4(2017). |
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