GC11F:
Decadal-to-Multidecadal Climate Variability, Climate Change, and Nutrient Cycling at High Latitudes I

Monday, 15 December 2014: 8:00 AM-10:00 AM
Chairs:  Michael J Previdi, Columbia University, Palisades, NY, United States, Kevin M Grise, University of Virginia Main Campus, Department of Environmental Sciences, Charlottesville, VA, United States, Kyle A Whittinghill, Saint Olaf College, Biology and Environmental Studies, Northfield, MN, United States and Tamara Harms, University of Alaska Fairbanks, Fairbanks, AK, United States
Primary Conveners:  Michael J Previdi, Columbia University, Palisades, NY, United States
Co-conveners:  Kyle A Whittinghill, Saint Olaf College, Biology and Environmental Studies, Northfield, MN, United States, Karen L Smith, Lamont -Doherty Earth Observatory, Palisades, NY, United States and Kevin M Grise, University of Virginia Main Campus, Department of Environmental Sciences, Charlottesville, VA, United States
OSPA Liaisons:  Michael J Previdi, Columbia University, Palisades, NY, United States

Abstracts Submitted to this Session:

8:00 AM
GC11F-01
 
Wind increase over cooling Southern Ocean driven by tropical warming and polar ozone hole
David P Schneider1, Tingting Fan1 and Clara Deser2, (1)National Center for Atmospheric Research, Boulder, CO, United States, (2)NCAR, Boulder, CO, United States
8:15 AM
GC11F-02
 
The Global Influence of Southern Ocean Shortwave Radiation Biases
Jennifer E Kay1, Vineel Yettella1, Brian Medeiros2 and Andrew Gettelman3, (1)University of Colorado Boulder, Atmospheric and Oceanographic Sciences and CIRES, Boulder, CO, United States, (2)NCAR/CGD, Boulder, CO, United States, (3)NCAR, Boulder, CO, United States
8:30 AM
GC11F-03
 
Trends and Variability of Southern Ocean Temperature and Salinity in Models and Observations
Kyle Armour1, Cecilia M Bitz2, John Marshall1 and Jeffrey R Scott1, (1)MIT, Cambridge, MA, United States, (2)Univ of Washington, Seattle, WA, United States
8:45 AM
GC11F-04
 
A Spurious Jump in the Satellite Record: Has Antarctic Sea Ice Expansion Been Overestimated?
Ian Eisenman, University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, Walter Meier, NASA Goddard Space Flight Center, Greenbelt, MD, United States and Joel R Norris, University of California San Diego, La Jolla, CA, United States
9:00 AM
GC11F-05
 
Century-scale perspectives on observed and simulated Southern Ocean sea ice trends from 20th century ice core proxies.
Will R Hobbs, University of Tasmania, Hobart, TAS, Australia
9:15 AM
GC11F-06
 
The Effects of Interactive Stratospheric Chemistry on Antarctic and Southern Ocean Climate Change in a Coupled Atmosphere-Ocean General Circulation Model
Feng Li, Goddard Earth Science Technology and Research, Greenbelt, MD, United States, Paul A. Newman, NASA GSFC, Code 610, Greenbelt, MD, United States, Steven Pawson, NASA Goddard Space Flight Center, Greenbelt, MD, United States and Darryn W Waugh, Johns Hopkins Univ, Baltimore, MD, United States
9:30 AM
GC11F-07
 
Permafrost Disturbance Impacts on Dissolved Ion Loads and Nitrogen Dynamics
Melissa J Lafreniere1, Nicole L Louiseize1, Scott F Lamoureux1 and Meredith Galanter Hastings2, (1)Queen's University, Geography, Kingston, ON, Canada, (2)Brown Univ-Geological Sciences, Providence, RI, United States
9:45 AM
GC11F-08
 
Phosphorus as a Colimiting Nutrient with Nitrogen of Birch Plant Growth Across the Arctic
Paul Grogan1, Tara Zamin1 and Jean-Pierre Tremblay2, (1)Queen's University, Biology, Kingston, ON, Canada, (2)Laval University, Biology, Quebec City, QC, Canada
 
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