Noble Gas Concentrations and Hydrography in Milne Fiord, Canada, 2024

Noble gas concentrations and helium isotope ratios from discrete water samples collected in Milne Fiord in July 2024, with associated post-processed conductivity-temperature-depth (CTD) profiles. These data were collected at four sites that spanned from the Milne Glacier grounding line to the Yelverton Basin of the Arctic Ocean. The noble gas concentrations and helium isotope ratios were acquired via mass spectrometry from the Woods Hole Oceanographic Institute Isotope Geochemistry Facility. The motivation behind data collection was to understand the collapsing ice and ocean ecosystem of Milne Fiord. This system hosts an ice configuration that supports the last remaining ice damned 'epishelf' lake of the northern hemisphere; however, it is breaking up.