Climate-driven variability of the Southern Ocean CO₂ sink.

ABSTRACT: The Southern Ocean is a major sink of atmospheric CO₂, but the nature and magnitude of its variability remains uncertain and debated. Estimates based on observations suggest substantial variability that is not reproduced by process-based ocean models, with increasingly divergent estimates over the past decade. We examine potential constraints on the nature and magnitude of climate-driven variability of the Southern Ocean CO₂ sink from observation-based air-sea O₂ fluxes. On interannual time scales, the variability in the air-sea fluxes of CO₂ and O₂ estimated from observations is consistent across the two species and positively correlated with the variability simulated by ocean models. Our analysis suggests that variations in ocean ven

SUBMITTER: Mayot N 

PROVIDER: S-EPMC10164464 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature