Multidecadal warming of Antarctic waters

Schmidtko, Sunke, Heywood, Karen J., Thompson, Andrew F. and Aoki, Shigeru (2014) Multidecadal warming of Antarctic waters. Science, 346 (6214). pp. 1227-1231. ISSN 0036-8075

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Abstract

Decadal trends in the properties of seawater adjacent to Antarctica are poorly known, and the mechanisms responsible for such changes are uncertain. Antarctic ice sheet mass loss is largely driven by ice shelf basal melt, which is influenced by ocean-ice interactions and has been correlated with Antarctic Continental Shelf Bottom Water (ASBW) temperature. We document the spatial distribution of long-term large-scale trends in temperature, salinity, and core depth over the Antarctic continental shelf and slope. Warming at the seabed in the Bellingshausen and Amundsen seas is linked to increased heat content and to a shoaling of the mid-depth temperature maximum over the continental slope, allowing warmer, saltier water greater access to the shelf in recent years. Regions of ASBW warming are those exhibiting increased ice shelf melt.

Item Type: Article
Faculty \ School: Faculty of Science > School of Environmental Sciences
Depositing User: Pure Connector
Date Deposited: 02 Feb 2015 16:08
Last Modified: 24 Jun 2020 23:51
URI: https://ueaeprints.uea.ac.uk/id/eprint/52155
DOI: 10.1126/science.1256117

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