Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020WR028300 |
How do climate and catchment attributes influence flood generating processes? A large‐sample study for 671 catchments across the contiguous USA | |
L. Stein; M. P. Clark; W. J. M. Knoben; F. Pianosi; R. Woods | |
2021-02-10 | |
发表期刊 | Water Resources Research
![]() |
出版年 | 2021 |
英文摘要 | Hydrometeorological flood generating processes (excess rain, short rain, long rain, snowmelt and rain‐on‐snow) underpin our understanding of flood behaviour. Knowledge about flood generating processes improves hydrological models, flood frequency analysis, estimation of climate change impact on floods, etc. Yet, not much is known about how climate and catchment attributes influence the spatial distribution of flood generating processes. This study aims to offer a comprehensive and structured approach to close this knowledge gap. We employ a large sample approach (671 catchments across the contiguous United States) and evaluate how catchment attributes and climate attributes influence the distribution of flood processes. We use two complementary approaches: A statistics‐based approach which compares attribute frequency distributions of different flood processes; and a random forest model in combination with an interpretable machine learning approach (accumulated local effects). The accumulated local effects method has not been used often in hydrology, and it overcomes a significant obstacle in many statistical methods, the confounding effect of correlated catchment attributes. As expected, we find climate attributes (fraction of snow, aridity, precipitation seasonality and mean precipitation) to be most influential on flood process distribution. However, the influence of catchment attributes varies both with flood generating process and climate type. We also find flood processes can be predicted for ungauged catchments with relatively high accuracy (R2 between 0.45 and 0.9). The implication of these findings is flood processes should be considered for future climate change impact studies, as the effect of changes in climate on flood characteristics varies between flood processes. This article is protected by copyright. All rights reserved. |
领域 | 资源环境 |
URL | 查看原文 |
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/313870 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | L. Stein,M. P. Clark,W. J. M. Knoben,等. How do climate and catchment attributes influence flood generating processes? A large‐sample study for 671 catchments across the contiguous USA[J]. Water Resources Research,2021. |
APA | L. Stein,M. P. Clark,W. J. M. Knoben,F. Pianosi,&R. Woods.(2021).How do climate and catchment attributes influence flood generating processes? A large‐sample study for 671 catchments across the contiguous USA.Water Resources Research. |
MLA | L. Stein,et al."How do climate and catchment attributes influence flood generating processes? A large‐sample study for 671 catchments across the contiguous USA".Water Resources Research (2021). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论