Vulnerability of Permafrost Carbon to Climate Change III

Thursday, 18 December 2014: 10:20 AM-12:20 PM
Chairs:  Anthony David McGuire, Univ Alaska Fairbanks, Fairbanks, AK, United States and David Olefeldt, University of Guelph, Guelph, ON, Canada
Primary Conveners:  Christina Schaedel, University of Florida, Gainesville, FL, United States
Co-conveners:  Anthony David McGuire, University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States and David Olefeldt, University of Alberta, Edmonton, AB, Canada
OSPA Liaisons:  Christina Schaedel, University of Florida, Gainesville, FL, United States

Abstracts Submitted to this Session:

10:20 AM
Reducing Uncertainty in Methane Emission Estimates from Permafrost Environments
Torben R Christensen1,2, Mikhail Mastepanov1,2, Magnus Lund1, Mikkel P Tamstorf1, Frans-Jan W Parmentier1,2, Søren Rysgård1 and Achim J Lilienthal3, (1)Arctic Research Centre, Aarhus University, Aarhus, Denmark, (2)Lund University, Physical Geography and Ecosystem Science, Lund, Sweden, (3)Örebro University, AASS, School of Science and Technology, Örebro, Sweden
10:35 AM
Changes in long term CH4 fluxes from the Alaskan North Slope based on a sector analysis of Barrow CH4 mole fraction measurements
Colm Sweeney1, Edward J Dlugokencky2, Steven C Wofsy3, Anna Karion1, Charles E Miller4, Steven J Dinardo5, Lori Bruhwiler6 and John B Miller7, (1)NOAA/Earth System Research Lab, Boulder, CO, United States, (2)NOAA, Boulder, CO, United States, (3)Harvard Univ, Cambridge, MA, United States, (4)Jet Propulsion Lab, Pasadena, CA, United States, (5)Jet Propulsion Laboratory, Pasadena, CA, United States, (6)NOAA/ESRL/GMD, Boulder, CO, United States, (7)NOAA/ESRL, Boulder, CO, United States
10:50 AM
The Influence of Thermokarst on Potential Decomposability of Soil Organic Matter in a Taiga and Tundra setting in NE Russia
Niels Weiss, Peter Kuhry and Gustaf Hugelius, Stockholm University, Stockholm, Sweden
11:05 AM
Impact of hydrology and vegetation community structure on CO2 and CH4 flux patterns in a permafrost ecosystem in Northeast Siberia
Min Jung Kwon1, Mathias Goeckede1, Marcus Wildner2, Martin Heimann1, Nikita Zimov3 and Sergei A Zimov3, (1)Max Planck Institute for Biogeochemistry, Jena, Germany, (2)University of Bayreuth, GeoEcology, Bayreuth, Germany, (3)Northeast Scientific Station, Cherskiy, Russia
11:20 AM
Interpreting Carbon Fluxes from a Spatially Heterogeneous Peatland with Thawing Permafrost: Scaling from Plant Community Scale to Ecosystem Scale
Silvie Raine Harder1, Nigel T Roulet1, Ian B Strachan1, Patrick M Crill2, Andreas Persson3, Luc Pelletier1 and Caitlin Watt1, (1)McGill University, Montreal, QC, Canada, (2)Stockholm University, Stockholm, Sweden, (3)Lund University, Lund, Sweden
11:35 AM
Correlating Permafrost Organic Matter Composition and Characteristics with Methane Production Potentials in a First Generation Thermokarst Lake and Its Underlying Permafrost Near Fairbanks, Alaska, USA
Joanne Heslop1, Katey M Walter Anthony2, Armando Sepulveda-Jauregui2 and Karla Catalina Martinez-Cruz1, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)University of Alaska Fairbanks, Water and Environmental Research Center, Fairbanks, AK, United States
11:50 AM
Understanding Carbon Storage in Permafrost Peatlands: Examples from Thermokarst Landscapes in Interior Alaska
Miriam Jones1, Jennifer W Harden2, Jonathan A. O'Donnell3, Kristen Manies2 and Torre Jorgenson4, (1)U.S. Geological Survey., Reston, VA, United States, (2)USGS California Water Science Center Menlo Park, Menlo Park, CA, United States, (3)National Park Service Anchorage, Anchorage, AK, United States, (4)Alaska Ecoscience, Fairbanks, AK, United States
12:05 PM
Climate impacts on Canadian subarctic peatland C accumulation and storage potentially mediated by moisture, peatland development, and fire
Philip Camill1, Charles E Umbanhowar Jr2, Cameron Adams1, Anna Westervelt1, Daniel Lesser1, Anna Hall1, Catherine Hamley1 and Anna Bourakovsky1, (1)Bowdoin College, Brunswick, ME, United States, (2)St. Olaf College, Northfield, MN, United States
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