Authors: Mohamed Ayache, Jean-Claude Dutay, Kazuyo Tachikawa, Gilles Ramstein, Laurent Li, Thomas Arsouze, Camille Risi, Anne Mouchet, Laurence Vidal, and Catherine Jeandel
Our present knowledge of ocean ventilation relies on the distributions of hydrographic tracers such as oxygen and neodymium; (i) the oxygen isotopic composition (δ18O) of ocean water varies as a function of the evaporation–precipitation balance and water mass mixing.