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Human-induced changes in the hydrology of the western United States

TitleHuman-induced changes in the hydrology of the western United States
Publication TypeJournal Article
Year of Publication2008
AuthorsBarnett, T. P., D. W. Pierce, H. G. Hidalgo, C. Bonfils, B. D. Santer, T. Das, G. Bala, A. W. Wood, T. Nozawa, A. A. Mirin, D. R. Cayan, and M. D. Dettinger
Date PublishedFeb
Type of ArticleArticle
ISBN Number0036-8075
Keywordsattribution, climate-change, cycle, model, NORTH-AMERICA, snowpack, streamflow, trends

Observations have shown that the hydrological cycle of the western United States changed significantly over the last half of the 20th century. We present a regional, multivariable climate change detection and attribution study, using a high- resolution hydrologic model forced by global climate models, focusing on the changes that have already affected this primarily arid region with a large and growing population. The results show that up to 60% of the climate- related trends of river flow, winter air temperature, and snow pack between 1950 and 1999 are human- induced. These results are robust to perturbation of study variates and methods. They portend, in conjunction with previous work, a coming crisis in water supply for the western United States.


ScienceISI Document Delivery No.: 264SWTimes Cited: 69Cited Reference Count: 29Barnett, Tim P. Pierce, David W. Hidalgo, Hugo G. Bonfils, Celine Santer, Benjamin D. Das, Tapash Bala, Govindasamy Wood, Andrew W. Nozawa, Toru Mirin, Arthur A. Cayan, Daniel R. Dettinger, Michael D.Amer assoc advancement scienceWashington

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Short TitleHuman-induced changes in the hydrology of the western United States
Citation Key34