Vertical profiles of freshwater fractions from meteoric (blue) and sea ice melt (red) sources derived from CTD discrete δ18O data, together with vertical profiles of glacial meltwater fractions derived from CTD O2-S (black), O2-θ and θ-S (gray), for the following locations: (A–D) the DIS stations, located west/left (Station 60, outflow station) to east/right (Stations 10, 11 and 9); (E-H) locations in the vicinity of a drifting iceberg; waters not yet mixed by the drifting iceberg are captured by s57.35 (right), while waters mixed by the drifting iceberg are captured by the other s57 casts; (I–L) Stations 6, 34, 66 and 4, going from south mid-shelf to north at the shelf break; and (M-P) Stations 13, 17, 35 and 21, going from west to east onto the shallow bank north of Bear Peninsula. Bold blue/red profiles are based on a meteoric endmember of −25‰; light blue/red profiles (left/right of bold blue/red profiles) are based on −20‰ and −30‰, respectively. Negative fractions of sea ice melt indicate net sea ice production. The black horizontal line indicates the depth above which the glacial meltwater fractions were discounted and below which the subsurface column inventories are given. At the bottom of each subplot are listed the total column inventories of meteoric water (in blue; see also Figure 11A) and the subsurface column inventories of glacial meltwater (in black; see also Figure 12D). See Figure 11A & 12A for locations of station transects plotted in A–D, E–H, I–L, and M–P.
