Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL073079 |
Land loss by pond expansion on the Mississippi River Delta Plain | |
Ortiz, Alejandra C.1,2; Roy, Samapriya3; Edmonds, Douglas A.1 | |
2017-04-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:8 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The world's river deltas may collapse under the combined effects of rising sea levels, subsidence, and reduced sediment supply. Saving these deltaic environments requires quantifying processes driving collapse. In the Mississippi River Delta, rapid land loss offers an important opportunity to test existing theories for marsh collapse. We use Landsat images to examine how pond expansion by edge retreat contributes to land loss over 34 years in the Atchafalaya-Vermillion, Terrebonne, and Barataria basins of the Mississippi Delta. Tracking the area changes in ponds on the marsh surface, we find a striking consistency between pond expansion direction and the dominant wind direction and show that wind-generated waves are capable of causing edge erosion. Expansion rate increases rapidly for ponds wider than 300 m in Terrebonne and Barataria basins. From this, we suggest that ponds in Atchafalaya-Vermillion basin are stable, whereas ponds in Terrebonne and Barataria are unstable. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000401847500024 |
WOS关键词 | SEA-LEVEL RISE ; OPEN WATER FEATURES ; MARSH COLLAPSE ; COASTAL MARSH ; SALT-MARSHES ; INDEX NDWI ; IMAGERY |
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/27698 |
专题 | 气候变化 |
作者单位 | 1.Indiana Univ Bloomington, Dept Earth & Atmospher Sci, Bloomington, IN 47405 USA; 2.North Carolina State Univ, Dept Civil Construct & Environm Engn, Raleigh, NC 27695 USA; 3.Indiana Univ Bloomington, Dept Geog, Bloomington, IN USA |
推荐引用方式 GB/T 7714 | Ortiz, Alejandra C.,Roy, Samapriya,Edmonds, Douglas A.. Land loss by pond expansion on the Mississippi River Delta Plain[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(8). |
APA | Ortiz, Alejandra C.,Roy, Samapriya,&Edmonds, Douglas A..(2017).Land loss by pond expansion on the Mississippi River Delta Plain.GEOPHYSICAL RESEARCH LETTERS,44(8). |
MLA | Ortiz, Alejandra C.,et al."Land loss by pond expansion on the Mississippi River Delta Plain".GEOPHYSICAL RESEARCH LETTERS 44.8(2017). |
条目包含的文件 | 条目无相关文件。 |
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