Respectively, (Thomson, Rosenberg, Izaurralde), Joint Global Change Research Institute (JGCRI), 8400 Baltimore Avenue, Suite 201, College Park, Maryland 20740; (Brown) Independent Project Analysis, 44426 Atwater Drive, Suite 100, Ashburn, Virginia 20147; (Legler) Director, U.S. CLIVAR, 400 Virginia Avenue S.W, Washington, D.C. 20024; and (Srinivasan) Blacklands Research and Extension Center, Texas Agricultural Experiment Station, 720 East Blacklands Road, Temple, Texas 76502 (E-Mail/Thomson: firstname.lastname@example.org).
SIMULATED IMPACTS OF EL NINO/SOUTHERN OSCILLATION ON UNITED STATES WATER RESOURCES1
Article first published online: 8 JUN 2007
JAWRA Journal of the American Water Resources Association
Volume 39, Issue 1, pages 137–148, February 2003
How to Cite
Thomson, A. M., Brown, R. A., Rosenberg, N. J., Izaurralde, R. C., Legler, D. M. and Srinivasan, R. (2003), SIMULATED IMPACTS OF EL NINO/SOUTHERN OSCILLATION ON UNITED STATES WATER RESOURCES. JAWRA Journal of the American Water Resources Association, 39: 137–148. doi: 10.1111/j.1752-1688.2003.tb01567.x
Thomson, Allison M., Robert A. Brown, Norman J. Rosenberg, R. Cesar Izaurralde, David M. Legler, and Raghavan Srinivasan, 2003. Simulated Impacts of El Niño/Southern Oscillation on United States Water Resources. J. of the American Water Resources Association (JAWRA) 39(1):137–148.
Paper No. 02002 of the Journal of the American Water Resources Association.Discussions are open until August 1, 2003.
- Issue published online: 8 JUN 2007
- Article first published online: 8 JUN 2007
- water resources impacts
ABSTRACT: The El Nino/Southern Oscillation (ENSO) phenomena alter global weather patterns with consequences for fresh water supply. ENSO events impact regions and their natural resource sectors around the globe. For example, in 1997 and 1998, a strong El Nino brought warm ocean temperatures, flooding, and record snowfall to the west coast of the United States. Research on ENSO events has improved long range climate predictions, affording the potential to reduce the damage and economic cost of these weather patterns. Here, using the Hydrologic Unit Model for the United States (HUMUS), we simulate the impacts of four types of ENSO states (Neutral, El Niño, La Niña, and strong El Niño) on water resources in the conterminous United States. The simulations show that La Niña conditions increase water yield across much of the country. We find that water yield increases during El Niño years across the south while declining in much of the rest of the country. However, under strong El Niño conditions, regional water yields are much higher than Neutral, especially along the West Coast. Strong El Niño is not simply an amplification of El Niño; it leads to strikingly different patterns of water resource response.