Wintertime ocean conditions over the southern Weddell Sea continental shelf, Antarctica

During the austral winter of 2007 a Weddell Seal tagged with a miniaturized conductivity-temperature-depth (CTD) instrument travelled over the central southern Weddell Sea continental shelf. The instrument yielded 750 CTD profiles, 250 of them to the sea floor. The data show a full depth flow of water onto the shelf via a sill at the shelf break (74°S 44°W). The warmth from the core of the flow was able to maintain the surface mixed layer above the freezing point, resulting in a band of reduced ice-production. An estimate of the on-shelf flux suggests that this flow accounts for most of the estimated 3 Sv of water draining from the southern Weddell Sea continental shelf.

Details

Publication status:
Published
Author(s):
Authors: Nicholls, Keith, Boehme, Lars, Biuw, Martin, Fedak, Mike A.

On this site: Keith Nicholls
Date:
1 January, 2008
Journal/Source:
Geophysical Research Letters / 35
Page(s):
5pp
Digital Object Identifier (DOI):
https://doi.org/10.1029/2008GL035742