Variability and trends in runoff efficiency in the conterminous United States

Journal of the American Water Resources Association
By:  and 

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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.

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Additional publication details

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
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