C-14, U-236, and I-129 data from Fram Strait 2018

C-14, U-236, and I-129 data collected across Fram Strait during the Norwegian Polar Institute’s Fram Strait cruise from 25 August to 11 September 2018 (FS2018) on board R/V Kronprins Haakon. Find the cruise report here: Fram Strait cruise report, 25th August – 11th September 2018: cruise no. 2018708 - Norwegian Research Information Repository

This dataset includes metadata (Cruise, Station, Latitude in degrees North, Longitude in degrees East, Date, Niskin Bottle number, Pressure in decibars), hydrographic data (Temperature and Practical Salinity from the CTD sensors), and radionuclide concentrations (I-129 concentration given in atoms per liter and atoms per kilogram, U-236 concentration given in atoms per liter and atoms per kilogram, U-236/U-238 atom ratio, U-238 concentration given in ppb, C-14 reported as Fraction Modern (F14C) and Delta14C; all given with 1-sigma uncertainties).

Metadata and hydrographic data are taken from Dodd et al. (2026). Seawater chemistry and tracers from the Fram Strait Arctic Outflow Observatory collected in August-September 2018 [Dataset]. Norwegian Polar Institute. https://doi.org/10.21334/NPOLAR.2025.0F711D82

U-236 and I-129 data have already been published as a supplement to Wefing et al. (2022)