Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Ventilation of the deep Southern Ocean and deglacial CO2 rise

Skinner, L. C., Fallon, S., Waelbroeck, C., Michel, E. and Barker, Stephen 2010. Ventilation of the deep Southern Ocean and deglacial CO2 rise. Science 328 (5982) , pp. 1147-1151. 10.1126/science.1183627

Full text not available from this repository.

Abstract

Past glacial-interglacial increases in the concentration of atmospheric carbon dioxide (CO2) are thought to arise from the rapid release of CO2 sequestered in the deep sea, primarily via the Southern Ocean. Here, we present radiocarbon evidence from the Atlantic sector of the Southern Ocean that strongly supports this hypothesis. We show that during the last glacial period, deep water circulating around Antarctica was more than two times older than today relative to the atmosphere. During deglaciation, the dissipation of this old and presumably CO2-enriched deep water played an important role in the pulsed rise of atmospheric CO2 through its variable influence on the upwelling branch of the Antarctic overturning circulation.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Earth and Ocean Sciences
Subjects: G Geography. Anthropology. Recreation > GC Oceanography
Q Science > QE Geology
Publisher: American Association for the Advancement of Science
ISSN: 0036-8075
Last Modified: 04 Jun 2017 02:23
URI: http://orca.cf.ac.uk/id/eprint/11092

Citation Data

Cited 152 times in Google Scholar. View in Google Scholar

Cited 278 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item