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Dams provide resilience to Columbia River basin from climate change impacts
Date:9/25/2013

of the dams, said Jones, who is on the faculty of the College of Earth, Ocean, and Atmospheric Sciences at OSU.

"The climate change signal on stream flow that we would expect to see is apparent in the headwaters," she said, "but not downstream. Historically, flow management in the Columbia River basin has focused on the timing of water flows and so far, despite debates about reservoir management, water scarcity has not been as prominent an issue in the Columbia basin as it has elsewhere, such as the Klamath basin."

The study, which was funded by the National Science Foundation's support to the H.J. Andrews Experimental Forest, looked at seven sub-basins of the Columbia River, as well as the main stem of the Columbia. These river systems included the Bruneau, Entiat, Snake, Pend Oreille, Priest, Salmon and Willamette rivers.

"One of the advantages of having a long-term research programs like H.J. Andrews is that you have detailed measurements over long periods of time that can tell you a lot about how climate is changing," Jones pointed out. "In the case of the Columbia River especially downstream the impacts haven't been as daunting as some people initially feared because of the engineering component.

"Will that be the case in the future?" she added. "It's possible, but hard to predict. Whether we see a strong climate change signal producing water shortages in the Columbia River will depend on the interplay of social forces and climate change over the next several decades."


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Contact: Julia Jones
jones@geo.oregonstate.edu
541-737-1224
Oregon State University
Source:Eurekalert

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