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SUMMARY:Changes in the Export of Weddell Sea Deep Water - Povl Abrahamsen 
 (British Antarctic Survey)
DTSTART:20171206T110000Z
DTEND:20171206T120000Z
UID:TALK95509@talks.cam.ac.uk
CONTACT:Dr Peter Davis
DESCRIPTION:A large proportion of Antarctic Bottom Water\, the coldest\, d
 ensest water mass in the World Ocean\, originates from Weddell Sea Deep Wa
 ter (WSDW). For over ten years\, BAS has been monitoring the export of WSD
 W from the Weddell Sea\, initially as part of the Long-term Monitoring and
  Survey programme\, and now as part of the NERC cross-centre ORCHESTRA (Oc
 ean Regulation of Climate by Heat and Carbon Sequestration and Transports)
  programme. We have deployed deep moorings across Orkney Passage\, a gap i
 n the South Scotia Ridge that a large proportion of WSDW is exported throu
 gh\, and annually we repeat hydrographic sections along part of the WOCE A
 23 line\, from South Georgia across the Scotia Sea and into the northern W
 eddell Sea. I will present some results from these measurements\, showing 
 recent changes in the properties and volumes of this water mass\, and will
  briefly discuss the possible causes and consequences\, of these changes.
LOCATION:British Antarctic Survey\, Innovation Centre\, Seminar Room 2
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