Articles | Volume 16, issue 2
Clim. Past, 16, 555–573, 2020
Clim. Past, 16, 555–573, 2020

Research article 19 Mar 2020

Research article | 19 Mar 2020

Changes in the high-latitude Southern Hemisphere through the Eocene–Oligocene transition: a model–data comparison

Alan T. Kennedy-Asser et al.

Data sets

EOT_SOcean A. T. Kennedy-Asser

Short summary
Global cooling and a major expansion of ice over Antarctica occurred ~ 34 million years ago at the Eocene–Oligocene transition (EOT). A large secondary proxy dataset for high-latitude Southern Hemisphere temperature before, after and across the EOT is compiled and compared to simulations from two coupled climate models. Although there are inconsistencies between the models and data, the comparison shows amongst other things that changes in the Drake Passage were unlikely the cause of the EOT.