Journal article
Floodplain inundation spectrum across the United States
Nature communications, Vol.10(1), 5194
11/15/2019
DOI: 10.1038/s41467-019-13184-4
PMCID: PMC6858325
PMID: 31729364
Abstract
Floodplain inundation poses both risks and benefits to society. In this study, we characterize floodplain inundation across the United States using 5800 stream gages. We find that between 4% and 12.6% of a river’s annual flow moves through its floodplains. Flood duration and magnitude is greater in large rivers, whereas the frequency of events is greater in small streams. However, the relative exchange of floodwater between the channel and floodplain is similar across small streams and large rivers, with the exception of the water-limited arid river basins. When summed up across the entire river network, 90% of that exchange occurs in small streams on an annual basis. Our detailed characterization of inundation hydrology provides a unique perspective that the regulatory, management, and research communities can use to help balance both the risks and benefits associated with flooding.
The variations in overbank flow from rivers onto floodplains from regional to continental scales are understudied. Here, the authors investigate this variation as a function of hydroclimatic parameters and channel size in the conterminous U.S. and find that the timing of floodplain inundation is largely controlled by regional factors, while the frequency, duration and magnitude of these inundations vary consistently with channel size.
Details
- Title: Subtitle
- Floodplain inundation spectrum across the United States
- Creators
- Durelle T. Scott - Virginia TechJesus D. Gomez-Velez - Vanderbilt UniversityC. Nathan Jones - University of AlabamaJudson W. Harvey - United States Geological Survey
- Resource Type
- Journal article
- Publication Details
- Nature communications, Vol.10(1), 5194
- DOI
- 10.1038/s41467-019-13184-4
- PMID
- 31729364
- PMCID
- PMC6858325
- NLM abbreviation
- Nat Commun
- ISSN
- 2041-1723
- eISSN
- 2041-1723
- Publisher
- Nature Publishing Group UK
- Grant note
- ;
- Language
- English
- Date published
- 11/15/2019
- Academic Unit
- Civil and Environmental Engineering
- Record Identifier
- 9984962627902771
Metrics
1 Record Views