Extended Data Fig. 9: Zonal velocity, potential density and potential temperature changes from observed datasets.
From: Ocean warming and accelerating Southern Ocean zonal flow
Upper 100 m zonal geostrophic velocity, Ug, trend (1993–2019) from the IAP, EN4 and change from WOA18 (1985–2017 mean minus 1955–1984 mean) (top row). Corresponding trend/change of upper 2,000 m averaged potential density and potential temperature are shown in middle row and bottom row, respectively. Black contours indicate Subantarctic Front and Southern ACC Front. Stippling indicates regions exceeding 90% statistical significance computed from the two-tailed t-test.
