Fig. 2: Shallower deep waters and altered water mass structure.
From: Southern Ocean freshening stalls deep ocean CO2 release in a changing climate
a, Depth of the 80% uCDW layer (circles), depth of the layer where fCO2 exceeds 500 µatm (triangles) and depth of the layer where oxygen levels fall below 215 µmol kg−1 (squares) for each section presented on the map. b, Distribution of water masses along section A12 in the 1972–2013 climatology. c, Distribution of water masses along section A12 in the most recent section (December 2014). d, Changes in water mass distribution between the climatology and December 2014 section.
