Inferring Snowpack Contributions and the Mean Elevation of Source Water to Streamflow in the Willamette River, Oregon Using Water Stable Isotopes.

J Renee Brooks1, Henry Johnson2, Keira Johnson3, Steven P Cline4 and William Rugh1, (1)U.S. Environmental Protection Agency, Pacific Ecological Systems Division, Corvallis, United States, (2)USGS Oregon Water Science Center, Portland, OR, United States, (3)Oregon State University, Corvallis, OR, United States, (4)Environmental Protection Agency Corvallis, Pacific Ecological Systems Division, Corvallis, United States