[CRYOLIST] 2014 AGU Ocean Sciences: Antarctic marginal seas and shelf/slope processes

Mike Dinniman msd at ccpo.odu.edu
Fri Sep 20 06:20:20 PDT 2013


Forwarded on behalf of Robin Muench.

-Mike Dinniman

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Dear all,

Anyone interested in coastal or continental shelf ocean processes in the 
Antarctic, including those impacting the ice sheet mass balance, from a 
field, remote sensing or modeling viewpoint, is more than welcome to 
submit an abstract to our OS session 040. For the session description, see 
below. The deadline for abstract submission is 4 October.

040 - Antarctic marginal seas and shelf/slope processes: physical and 
biological variability, controls, and links to larger scales

The Antarctic continental margins harbor the highest productivity in the 
Southern Ocean, and may constitute an important yet unaccounted for CO2 
sink. They are sites for significant ocean-driven loss of glacial ice and 
deep bottom water formation. Antarctic margins are being impacted by 
climate-driven changes in ocean temperature, weather patterns, and ice 
cover. Understanding biological and physical responses to these changes is 
essential to quantifying them and to assessing their sensitivity to larger 
scale forcing including modes of climate variability such as SAM, ENSO, 
and the PDO. Physical processes, including transports across the shelf 
break, circulation on the shelf and mixing, impact sea ice processes and 
micro-nutrients to regulate primary production on the shelves while 
transporting heat southward and dense bottom water seaward. This session 
provides a venue for exchange of new insights and results on regional 
biological and physical processes with an emphasis on variability in the 
Antarctic marine margin environment. We seek results focused on: 1) 
regional variability in primary production, 2) mesoscale circulation and 
dynamics, including linkages to primary production and to heat and deep 
water transport, 3) the role of micro-nutrients, and 4) innovative 
measurement designs, such as autonomous technology, and approaches for 
quantifying primary production.

Robin D. Muench, Dennis McGillicuddy, Kevin Arrigo, Anna Wahlin, Walker 
Smith and Josh Kohut, co-conveners

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