Variability and trends in runoff efficiency in the conterminous United States
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Abstract
Variability and trends in water-year runoff efficiency (RE) — computed as the ratio of water-year runoff (streamflow per unit area) to water-year precipitation — in the conterminous United States (CONUS) are examined for the 1951 through 2012 period. Changes in RE are analyzed using runoff and precipitation data aggregated to United States Geological Survey 8-digit hydrologic cataloging units (HUs). Results indicate increases in RE for some regions in the north-central CONUS and large decreases in RE for the south-central CONUS. The increases in RE in the north-central CONUS are explained by trends in climate, whereas the large decreases in RE in the south-central CONUS likely are related to groundwater withdrawals from the Ogallala aquifer to support irrigated agriculture.
Suggested Citation
McCabe, G., Wolock, D.M., 2016, Variability and trends in runoff efficiency in the conterminous United States: Journal of the American Water Resources Association, v. 52, no. 5, p. 1046-1055, https://doi.org/10.1111/1752-1688.12431.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Variability and trends in runoff efficiency in the conterminous United States |
| Series title | Journal of the American Water Resources Association |
| DOI | 10.1111/1752-1688.12431 |
| Volume | 52 |
| Issue | 5 |
| Publication Date | June 03, 2016 |
| Year Published | 2016 |
| Language | English |
| Publisher | Wiley |
| Contributing office(s) | National Research Program - Central Branch |
| Description | 10 p. |
| First page | 1046 |
| Last page | 1055 |
| Country | United States |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |