Mean salinity between 500 and 1000 m in the Labrador Sea, calculated from all available Argo float profiles between 2000 and 2020 (see Sect. 2.2 for details), averaged within overlapping bins. Gray lines show the 1000, 2000, and 3000 m isobaths, vectors show mean currents at the depth of LSW from Fischer et al. (2018), and symbols correspond to positions of the SeaCycler mooring (red) and the 53∘ N array (magenta).