Water stable isotope data (hydrogen and oxygen isotopes of H2O) for 5 river basins in Washington state and Alaska. The samples were collected in 2017 during summer baseflow season. Collection sites were distributed across each basin to represent the range of possible isotope values within the basin, but sample sites were easily accessible. This dataset is associated with the following publication: McGill, L., E.A. Steel, J.R. Brooks, R.T. Edwards, and A. Fullerton. Elevation and spatial structure explain most surface-water isotopic variation across five Pacific Coast basins. JOURNAL OF HYDROLOGY. Elsevier Science Ltd, New York, NY, USA, 583: 124610, (2020).

The dataset includes water isotope values from samples spatially distributed across the Snake River basin collected between 2013-2015, and time series data collected from the Snake River at King Hill. The timeseries data were collected at the USGS 13154500 gage at approximately monthly intervals from 2013 through water year 2019. Site descriptions and watershed metrics are also included for the spatially distributed collection sites. Water Isotope QA data has also been included. This dataset is associated with the following publication: Windler, G., J.R. Brooks, H.M. Johnson, R. Comeleo, R. Coulombe, and G. Bowen. Climate Impacts on Source Contributions and Evaporation to Flow in the Snake River Basin Using Surface Water Isoscapes (δ2H and δ18O). WATER RESOURCES RESEARCH. American Geophysical Union, Washington, DC, USA, 57(7): e2020WR029157, (2021).

The dataset includes water isotope values from samples spatially distributed across the Snake River basin collected between 2013-2015, and time series data collected from the Snake River at King Hill. The timeseries data were collected at the USGS 13154500 gage at approximately monthly intervals from 2013 through water year 2019. Site descriptions and watershed metrics are also included for the spatially distributed collection sites. Water Isotope QA data has also been included. This dataset is associated with the following publication: Windler, G., J.R. Brooks, H.M. Johnson, R. Comeleo, R. Coulombe, and G. Bowen. Climate Impacts on Source Contributions and Evaporation to Flow in the Snake River Basin Using Surface Water Isoscapes (δ2H and δ18O). WATER RESOURCES RESEARCH. American Geophysical Union, Washington, DC, USA, 57(7): e2020WR029157, (2021).

Water stable isotope data collected from a range of streams throughout the Marys River basin in water year 2015, and precipitation data collected within the basin at a range of elevations. This dataset is associated with the following publication: Nickolas, L., C. Segura, and J.R. Brooks. The influence of lithology on surface water sources. Hydrological Processes. John Wiley & Sons, Ltd., Indianapolis, IN, USA, 31(10): 1913-1925, (2017).

Water stable isotope data collected from a range of streams throughout the Marys River basin in water year 2015, and precipitation data collected within the basin at a range of elevations. This dataset is associated with the following publication: Nickolas, L., C. Segura, and J.R. Brooks. The influence of lithology on surface water sources. Hydrological Processes. John Wiley & Sons, Ltd., Indianapolis, IN, USA, 31(10): 1913-1925, (2017).

Water stable isotope data (hydrogen and oxygen isotopes of H2O) from wetlands and streams within the Pipestem Creek watershed. This data was collected over two open water seasons (May-September): 2014 and 2015. This dataset is associated with the following publication: Brooks, J.R., D. Mushet, M. Vanderhoof, S. Leibowitz, J. Christensen, B. Neff, D. Rosenberry, W. Rugh, and L. Alexander. Estimating wetland connectivity to streams in the Prairie Pothole Region: an isotopic and remote sensing approach. WATER RESOURCES RESEARCH. American Geophysical Union, Washington, DC, USA, 54(2): 995-977, (2018).

Water stable isotope data (hydrogen and oxygen isotopes of H2O) from wetlands and streams within the Pipestem Creek watershed. This data was collected over two open water seasons (May-September): 2014 and 2015. This dataset is associated with the following publication: Brooks, J.R., D. Mushet, M. Vanderhoof, S. Leibowitz, J. Christensen, B. Neff, D. Rosenberry, W. Rugh, and L. Alexander. Estimating wetland connectivity to streams in the Prairie Pothole Region: an isotopic and remote sensing approach. WATER RESOURCES RESEARCH. American Geophysical Union, Washington, DC, USA, 54(2): 995-977, (2018).

This data release includes a table of 87Sr/86Sr, 234U/238U, δ2H, and δ18O isotope data used to evaluate groundwater- and surface-water-sources contributing to water in perennial wetlands near the mouth of Potrero Creek within the Upper Santa Cruz Basin near Nogales, AZ. Interpretations of those data are discussed in the pamphlet accompanying the USGS Scientific Investigations Map SIM-XXXXX

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.