Fig. 4: Salinity and oxygen anomalies along section A12 and location of repeat hydrographic sections.
From: Southern Ocean freshening stalls deep ocean CO2 release in a changing climate

a, Salinity anomalies between the 1972–2013 climatology and December 2014 along section A12. b, Oxygen anomalies between the 1972–2013 climatology and December 2014 along section A12. c, Map of all sections in the the Global Ocean Data Analysis Project (GLODAP) database (light grey; Methods) with repeat sections analysed in this study highlighted (dark grey).