---
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  Abstract: '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.'
  Accession Number: 34
  Alternate Journal: Science
  Author: "Barnett, T.P.\rPierce, D.W.\rHidalgo, H.G.\rBonfils, C.\rSanter, B.D.\rDas, T.\rBala, G.\rWood, A.W.\rNozawa, T.\rMirin, A. A.\rCayan, D.R.\rDettinger, M.D."
  Author Address: '[Barnett, Tim P.; Pierce, David W.; Hidalgo, Hugo G.; Das, Tapash; Cayan, Daniel R.; Dettinger, Michael D.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA. [Bonfils, Celine; Santer, Benjamin D.; Bala, Govindasamy; Mirin, Arthur A.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Wood, Andrew W.] Univ Washington, Land Surface Hydrol Res Grp, Seattle, WA 98195 USA. [Nozawa, Toru] Natl Inst Environm Studies, Tsukuba, Ibaraki 3058506, Japan. [Cayan, Daniel R.; Dettinger, Michael D.] US Geol Survey, La Jolla, CA 92093 USA.; Barnett, TP, Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA.; tbarnett-ul@ucsd.edu'
  DOI: 10.1126/science.1152538
  Date: Feb
  ISSN: 0036-8075
  Issue: 5866
  Journal: Science
  Keywords: north-america; climate-change; trends; model; attribution; streamflow; snowpack; cycle
  Language: English
  Notes: 'ISI Document Delivery No.: 264SW; Times Cited: 69; Cited Reference Count: 29; Barnett, 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 science; Washington'
  Pages: 1080-1083
  Title: Human-induced changes in the hydrology of the western United States
  Type of Article: Article
  URL: http://www.sciencemag.org/cgi/content/abstract/1152538
  Volume: 319
  Year: 2008
  _chapter: '["Ch. 20: Southwest FINAL","Ch. 8: Ecosystems FINAL","Ch. 3: Water Resources FINAL","Appendix 3: Climate Science FINAL"]'
  _record_number: 862
  _uuid: 87875dde-385b-4f57-b0ae-aa21648b2833
  reftype: Journal Article
child_publication: /article/10.1126/science.1152538
description: Human-induced changes in the hydrology of the western United States
display_name: Human-induced changes in the hydrology of the western United States
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  - /report/nca3/chapter/ecosystems
  - /report/nca3/chapter/southwest
  - /report/nca3/chapter/appendix-climate-science-supplement
  - /report/nca3/chapter/water-resources
  - /report/nca3/chapter/southwest/finding/decreasing-water-supply
  - /report/nca3/chapter/southwest/finding/climate-change-increases-wildfires
  - /report/nca3
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