Isotopic Composition of Ohio Rivers

This resource presents δ18O, δ2H and d-excess values of the samples collected along the transect of the Scioto River in Ohio, USA. Samples were collected on weekly, bi-weekly, and monthly scales depending on time of year and location. We also present δ18O, δ2H and d-excess data from samples collected from 26 Ohio Rivers during five sampling campaigns from 2019 – 2021. Samples were collected in by hand in 20 mL HDPE scintillation vials or with a 1 L HDPE Bottle attached to a 1 m PVC pole. Samples were stored with no headspace for transport back to The Ohio State University, Columbus, Ohio, USA, where they were analyzed on a Picarro Wavelength Scanned-Cavity Ring Down Spectroscopy Analyzer Model L2130-i. Instrument precision was 0.016‰ for δ18O and 0.15‰ δ2H. In-run accuracy for samples was determined with sample duplicates and values were ≤0.52‰ and ≤1.1‰ δ18O and δ2H, apart from one run where the δ2H expect for 2020 Ohio River samples where in-run accuracy was ≤3.4‰. All data are published in Supplementary Table 1 in the initial resource:

Smith, D. F., Wichterich, C. M., Carey, A. E., Welch, S. A., Lyons, W. B., 2024, The δ18O and δ2H fingerprint of the Scioto River: A detailed look into seasonal and spatial variations in the context of Ohio rivers: Applied Geochemistry: 162, 105882, doi: 10.1016/j.apgeochem.2023.105882