Extended Data Fig. 6: Full set of profiling float hydrographic observations from Maud Rise from 2011–2018.
From: Antarctic offshore polynyas linked to Southern Hemisphere climate anomalies
a–e, Complete depth sections of potential temperature (a), salinity (b), dissolved oxygen (c), buoyancy frequency squared (N2) (d) and convection resistance (see Methods section ‘Derived oceanographic quantities’) (e) from profiling floats 5903616 (left), 5904468 (centre) and 5904471 (right), as shown in Fig. 4. Individual profiles are marked at the top (black ticks). Mixed-layer depth is indicated in white. Vertical lines in each panel mark the start and end dates of the 2016 and 2017 polynyas. Along-trajectory SIC, primarily from AMSR2-ASI, is shaded at the top in black (see Methods section ‘Sea ice concentration data’).
