Dissolved oxygen time series measured on the Overturning in the Subpolar North Atlantic Program (OSNAP) moorings within the boundary currents of the Labrador and Irminger Seas from summer 2020 to summer 2022

This dataset contains oxygen time series collected from June 2020 - July 2022 on the Overturning in the Subpolar North Atlantic Program (OSNAP) moorings CF1, CF3, CF4, CF5, CF6, CF7, M1, M2, and M3 moorings in the western Irminger Sea, the C1_b, C2_b, C3_b, K7, K8, K9, K10, and DSOW 2 in the western Labrador Sea, and the LS1, LS3, LS4, LS5, LS6, LS7, and LS8 in the eastern Labrador Sea. Depths of oxygen data collection on the moorings range from as shallow as 50 m to as deep as 3500 m, covering the seasonally-stratified, near-surface waters, Labrador Sea Water, Northeast Atlantic Deep Water, and Denmark Strait Overflow Water masses.  These data were collected and calibrated for the Gases in the Overturning and Horizontal circulation of the Subpolar North Atlantic Program (GOHSNAP) for the purpose of calculating oxygen transports in the Labrador Sea. Data were calibrated and corrected for drift using Winkler-calibrated shipboard oxygen casts collected on the mooring recovery and deployment cruises, described in Miller et al. (2024) (Frontiers in Marine Science; 10.3389/fmars.2024.1441976).