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. DOI 10.1126/science.1256117.

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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.

Document Type: Article
Additional Information: WOS:000346189000057
Keywords: Seawater warming, Antarctic
Research affiliation: OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-PO Physical Oceanography
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1126/science.1256117
ISSN: 0036-8075
Date Deposited: 03 Dec 2014 09:34
Last Modified: 09 Sep 2016 11:35
URI: http://oceanrep.geomar.de/id/eprint/26114

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