Mixed layer thickness in the southern hemisphere in late winter (September), based on Argo float profiles (depth that is 0.03 kg m⁻³ denser than the surface value). Source: From Dong, Gille, Sprintall, and Talley (2008).

Cyclonic eddy just south of the SAF at 132°E. (a) Temperature section along 132°E in 1977. (b) Depth of the 3.5°C isotherm; arrows are the ship drift. Source: From Savchenko, Emery, and Vladimirov (1978).

Cyclonic eddy just south of the SAF at 132°E. (a) Temperature section along 132°E in 1977. (b) Depth of the 3.5°C isotherm; arrows are the ship drift. Source: From Savchenko, Emery, and Vladimirov (1978).

Antarctic ice shelves that are monitored using satellite imagery. Source: From NSIDC (2009c).