GSTDTAP  > 气候变化
DOI10.1002/2017GL074243
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
ISSN0094-8276
EISSN1944-8007
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
被引频次:85[WOS]   [WOS记录]     [WOS相关记录]
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
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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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