Skip to main content
U.S. flag

An official website of the United States government

Water Stable Isotope data from the Willamette Basin, Oregon

Published by U.S. EPA Office of Research and Development (ORD) | U.S. Environmental Protection Agency | Catalog Last Checked: April 21, 2026 at 08:07 PM | Dataset Last Updated: March 31, 2025
Water stable isotope ratios (2H and 18O) from the Willamette River Basin in Oregon, USA. Isotope values in the Willamette River are from both Portland and Corvallis Oregon, and were collected once or twice a month for 13 years (2011 - 2013). Isotope data are provided for small spatially distributed watersheds across the basin and samples were collected once a year during summer lowflow, and used to test the temporal stability of the Willamette River Basin Isoscape developed in the following paper: Brooks, J. R., Wigington, P. J., Phillips, D. L., Comeleo, R., & Coulombe, R. (2012). Willamette River Basin surface water isoscape (d18O and d2H): temporal changes of source water within the river. Ecosphere, 3(5), 39. doi: http://dx.doi.org/10.1890/ES11-00338.1 In addition, precipitation isotopes from Corvallis and Newport were collected weekly.

Resources

2 resources available

  • Oregon Precipitation Isotope data.xlsx

    APPLICATION/VND.OPENXMLFORMATS-OFFICEDOCUMENT.SPREADSHEETML.SHEET
  • Willamette Water Isotopes 2011-2023 data-SciHub.xlsx

    APPLICATION/VND.OPENXMLFORMATS-OFFICEDOCUMENT.SPREADSHEETML.SHEET

Find Related Datasets

Search by Tags

Click any tag below to search for similar datasets

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov