Climate change impacts on water management and irrigated agriculture in the Yakima River basin, Washington, USA
Vano, J.A., M. Scott, N. Voisin, C. Stöckle, A.F. Hamlet, K.E.B. Mickelson, M.M. Elsner, and D.P. Lettenmaier. 2010. Climate change impacts on water management and irrigated agriculture in the Yakima River basin, Washington, USA. Climatic Change 102(1-2): 287-317, doi: 10.1007/s10584-010-9856-z.
The Yakima River Reservoir system supplies water to ~180,000 irrigated hectares through the operation of five reservoirs with cumulative storage of ~30% mean annual river flow. Runoff is derived mostly from winter precipitation in the Cascade Mountains, much stored as snowpack. Climate change is expected to result in earlier snowmelt runoff and reduced summer flows. Effects of these changes on irrigated agriculture were simulated using a reservoir system model coupled to a hydrological model driven by downscaled scenarios from 20 climate models archived by the 2007 IPCC Fourth Assessment Report.
UW Climate Impacts Group