Ontology highlight
ABSTRACT:
SUBMITTER: Ferrari R
PROVIDER: S-EPMC4066517 | biostudies-other | 2014 Jun
REPOSITORIES: biostudies-other
Proceedings of the National Academy of Sciences of the United States of America 20140602 24
In the modern climate, the ocean below 2 km is mainly filled by waters sinking into the abyss around Antarctica and in the North Atlantic. Paleoproxies indicate that waters of North Atlantic origin were instead absent below 2 km at the Last Glacial Maximum, resulting in an expansion of the volume occupied by Antarctic origin waters. In this study we show that this rearrangement of deep water masses is dynamically linked to the expansion of summer sea ice around Antarctica. A simple theory furthe ...[more]