Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL082792 |
Ice and Permafrost Effects on Delta Morphology and Channel Dynamics | |
Lauzon, Rebecca1,2; Piliouras, Anastasia1; Rowland, Joel C.1 | |
2019-06-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:12页码:6574-6582 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Arctic regions are changing rapidly as permafrost thaws and sea ice retreats. These changes directly affect Arctic river deltas, but how permafrost and ice alter delta hydrology and sediment transport are not well researched. This knowledge gap limits our ability to forecast how these systems will respond to continued warming. We adapt the reduced complexity model of delta morphodynamics DeltaRCM to investigate the influences of permafrost and landfast ice on delta morphology and channel dynamics. We find that ice cover and permafrost decrease channel mobility, increase shoreline roughness, and route and deposit more sediment offshore. Ice cover also enhances overbank deposition, increasing subaerial delta elevations. Our modeling suggests that permafrost and ice loss in a warming climate could lead to less overbank and offshore deposition and more dynamic and spatially distributed fluxes of water and sediment across Arctic river deltas. |
英文关键词 | delta ice permafrost Arctic modeling |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000477616300047 |
WOS关键词 | REDUCED-COMPLEXITY MODEL ; RIVER DELTA ; VELOCITY PROFILES ; INCIPIENT MOTION ; THERMAL EROSION ; SEA-ICE ; COASTAL ; COVER |
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/184246 |
专题 | 气候变化 |
作者单位 | 1.Los Alamos Natl Lab, Earth & Environm Sci Div, Los Alamos, NM 87545 USA; 2.Duke Univ, Nicholas Sch Environm, Div Earth & Ocean Sci, Durham, NC 27708 USA |
推荐引用方式 GB/T 7714 | Lauzon, Rebecca,Piliouras, Anastasia,Rowland, Joel C.. Ice and Permafrost Effects on Delta Morphology and Channel Dynamics[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(12):6574-6582. |
APA | Lauzon, Rebecca,Piliouras, Anastasia,&Rowland, Joel C..(2019).Ice and Permafrost Effects on Delta Morphology and Channel Dynamics.GEOPHYSICAL RESEARCH LETTERS,46(12),6574-6582. |
MLA | Lauzon, Rebecca,et al."Ice and Permafrost Effects on Delta Morphology and Channel Dynamics".GEOPHYSICAL RESEARCH LETTERS 46.12(2019):6574-6582. |
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