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Scientific Investigations Report 2010–5153

Thermal Effects of Dams in the Willamette River Basin, Oregon

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Figure 7. Cumulative frequency curves of measured and estimated water temperatures for conditions with and without upstream dams at the Big Cliff dam site in the Williamette River basin, Oregon, 2001–02. Measured with-dam temperatures are from USGS station 14181500 just downstream of Big Cliff Dam. The inset graph shows an expanded vertical scale at the highest temperatures.

First posted August 17, 2010

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For additional information contact:
Director, Oregon Water Science Center
U.S. Geological Survey
2130 SW 5th Ave.
Portland, Oregon 97201
http://or.water.usgs.gov

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