Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL074243 |
Debris flow initiation by runoff in a recently burned basin: Is grain-by-grain sediment bulking or en masse failure to blame? | |
McGuire, Luke A.1; Rengers, Francis K.2; Kean, Jason W.2; Staley, Dennis M.2 | |
2017-07-28 | |
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:14 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Postwildfire debris flows are frequently triggered by runoff following high-intensity rainfall, but the physical mechanisms by which water-dominated flows transition to debris flows are poorly understood relative to debris flow initiation from shallow landslides. In this study, we combined a numerical model with high-resolution hydrologic and geomorphic data sets to test two different hypotheses for debris flow initiation during a rainfall event that produced numerous debris flows within a recently burned drainage basin. Based on simulations, large volumes of sediment eroded from the hillslopes were redeposited within the channel network throughout the storm, leading to the initiation of numerous debris flows as a result of the mass failure of sediment dams that built up within the channel. More generally, results provide a quantitative framework for assessing the potential of runoff-generated debris flows based on sediment supply and hydrologic conditions. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407790500025 |
WOS关键词 | MODELING WATER EROSION ; PHYSICAL PRINCIPLES ; WILDFIRE ; CATCHMENTS ; FIRE ; TRANSPORT ; USA |
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/27676 |
专题 | 气候变化 |
作者单位 | 1.Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA; 2.US Geol Survey, Box 25046, Denver, CO 80225 USA |
推荐引用方式 GB/T 7714 | McGuire, Luke A.,Rengers, Francis K.,Kean, Jason W.,et al. Debris flow initiation by runoff in a recently burned basin: Is grain-by-grain sediment bulking or en masse failure to blame?[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(14). |
APA | McGuire, Luke A.,Rengers, Francis K.,Kean, Jason W.,&Staley, Dennis M..(2017).Debris flow initiation by runoff in a recently burned basin: Is grain-by-grain sediment bulking or en masse failure to blame?.GEOPHYSICAL RESEARCH LETTERS,44(14). |
MLA | McGuire, Luke A.,et al."Debris flow initiation by runoff in a recently burned basin: Is grain-by-grain sediment bulking or en masse failure to blame?".GEOPHYSICAL RESEARCH LETTERS 44.14(2017). |
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