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DOI	10.1029/2019GL085086
	Orographic Controls on Subdaily Rainfall Statistics and Flood Frequency in the Colorado Front Range; USA
	Rossi M.W.; Anderson R.S.; Anderson S.P.; Tucker G.E.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:4
英文摘要	Generalizable relationships for how subdaily rainfall statistics imprint into runoff statistics are lacking. We use the Colorado Front Range, known for destructive rainfall-triggered floods and landslides, to assess whether orographic patterns in runoff generation are a direct consequence of rainstorm climatology. Climatological analysis relies on a dense network of tipping-bucket rain gauges and gridded precipitation frequency estimates from the National Oceanic and Atmospheric Administration to evaluate relationships among subdaily rainfall statistics, topography, and flood frequency throughout the South Platte River basin. We find that event-scale rainfall statistics only weakly depend on elevation, suggesting that orographic gradients in runoff “extremes” are not simply a consequence of rainfall patterns. In contrast, bedrock exposure strongly varies with elevation in a way that plausibly explains enhanced runoff generation at lower elevations via reduced water storage capacity. These findings are suggestive of feedbacks between bedrock river evolution and hillslope hydrology not typically included in models of landscape evolution. ©2019. American Geophysical Union. All Rights Reserved.
英文关键词	Floods; Rain gages; Runoff; Statistics; Storms; Topography; Colorado Front Range; Flood frequency; Orographic precipitation; Rainfall extremes; Rainfall statistics; Runoff generation; Rain; bedrock; flood frequency; hillslope; orography; precipitation intensity; rainstorm; river evolution; runoff; water storage; Colorado; Front Range; Rocky Mountains; South Platte River; United States
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170642
作者单位	Earth Lab, University of Colorado Boulder, Boulder, CO, United States; Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States; Department of Geological Sciences, University of Colorado Boulder, Boulder, CO, United States; Institute of Arctic and Alpine Research, University of Colorado Boulder, Boulder, CO, United States
推荐引用方式 GB/T 7714	Rossi M.W.,Anderson R.S.,Anderson S.P.,et al. Orographic Controls on Subdaily Rainfall Statistics and Flood Frequency in the Colorado Front Range; USA[J],2020,47(4).
APA	Rossi M.W.,Anderson R.S.,Anderson S.P.,&Tucker G.E..(2020).Orographic Controls on Subdaily Rainfall Statistics and Flood Frequency in the Colorado Front Range; USA.Geophysical Research Letters,47(4).
MLA	Rossi M.W.,et al."Orographic Controls on Subdaily Rainfall Statistics and Flood Frequency in the Colorado Front Range; USA".Geophysical Research Letters 47.4(2020).