Fig 2. Sampling stations within each area, corresponding map of the upper mixed layer (UML) and the Θ/S diagram.
Station maps for the RoME 1, 2 and 3 (A, D, G, respectively). The bathymetry data of the Ross Sea from [43] under a CC BY license, with permission from [Davey], original copyright [2004–2005]. Map of the UML depth (colour scale) for the three areas (B, E, H). The Θ/S diagrams for each leg with indication of data shallower than the UML (red dots) and of the freezing point (C, F, I). UML maps and Θ/S diagrams produced through Ocean Data View software [44].