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Evolving state of the Southern Ocean 1. How is the Southern Ocean changing? 2. What is the impact of changes in ocean circulation and water properties on the cryosphere, biogeochemical cycles and biology of the Southern Ocean? 3. What is the cause of observed changes in the Southern Ocean? How much of the signal is consistent with anthropogenic climate change?
Research plan: Fieldwork Argo, including ice floats Moorings: Mertz polynya region and Antarctic margin near Casey Repeat hydrographic + tracer sections • Dec 2010: southern end of SR3 + shelf/slope • Feb 2012: recover 115E moorings • Jan 2013: Mertz area, on Tangaroa • I9S (115E): 2011-12? Or 2014?
Page 1: The Southern Ocean and Sea-Level Ri
Page 5 and 6: Who’s involved? ACE + local partn
Page 7 and 8: IPCC Oceans chapter outline Chapter
Page 9 and 10: Overturning circulation acts as a v
Page 11 and 12: Warming of the abyssal ocean Purkey
Page 13 and 14: Kerguelen Deep Western Boundary Cur
Page 15 and 16: Subduction hot-spots
Page 17 and 18: Sallee, Speer, Rintoul, Nature Geos
Page 19 and 20: Can IPCC models parameterise the ef
Page 21 and 22: Trends in sea surface height: 1992-
Page 23 and 24: Diagnosing the causes of SO change
Page 25 and 26: East Antarctica more vulnerable tha
Page 27: Basal melt rates vs. temperature el
Page 32 and 33: With additional support from The So
Page 34 and 35: Mawson meets Scott The Monthly, Jul
Page 36 and 37: EAST-WEST 5 Andrew Meijers + Ben Ga
Page 38 and 39: Measuring the ACC flow through gaps
Page 40: Injection of Subantarctic Mode Wate

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