Articles | Volume 17, issue 1
Ocean Sci., 17, 59–90, 2021
Ocean Sci., 17, 59–90, 2021

Research article 13 Jan 2021

Research article | 13 Jan 2021

Antarctic Bottom Water and North Atlantic Deep Water in CMIP6 models

Céline Heuzé

Video supplement

Overflow ACCESS-CM2 Céline Heuzé

Overflow NorESM2-MM Céline Heuzé

Short summary
Dense waters sinking by Antarctica and in the North Atlantic control global ocean currents and carbon storage. We need to know how these change with climate change, and thus we need accurate climate models. Here we show that dense water sinking in the latest models is better than in the previous ones, but there is still too much water sinking. This impacts how well models represent the deep ocean density and the deep currents globally. We also suggest ways to improve the models.