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. 2021 Apr 9;7(15):eabd7254. doi: 10.1126/sciadv.abd7254

Fig. 3. Visualization of different water masses in the surveyed area.

Fig. 3

Hydrographic data obtained by CTD [colors correspond to stations in (A)]. Pine Island Bay is indicated by PIB together with data obtained by the AUV (black is the mission in trough T3, and gray is the mission in trough T2). Solid black line shows the mixing line between CDW and ice shelf melt (see Methods) (16, 18, 40). (A) Map of the region. (B) Conservative temperature θ (in degrees Celsius) versus absolute salinity SA (in grams per kilogram). Dashed black line shows the freezing point at surface pressure (9), and solid contours show the potential density. (C) Dissolved oxygen (in milliliters per liter) versus absolute salinity SA (in grams per kilogram). (D) Conservative temperature θ (in degrees Celsius) versus absolute salinity SA (in grams per kilogram) for the zoomed parameter space indicated by blue box in (B). Solid contours show the potential density. (E) Dissolved oxygen (in milliliters per liter) versus absolute salinity SA (in grams per kilogram) for the zoomed parameter space indicated by blue box in (C). Blue arrows in (B) and (C) indicate the high meltwater concentrations discussed in the main text.