B43B:
Biogeochemistry of Arctic Atmosphere, Terrestrial, Freshwater, and Coastal Systems III Posters

Thursday, 18 December 2014: 1:40 PM-6:00 PM
Chairs:  Peter Hernes, University of California - Davis, Davis, CA, United States and Sally MacIntyre, University of California Santa Barbara, Santa Barbara, CA, United States
Primary Conveners:  Kimberly Wickland, US Geological Survey, Boulder, CO, United States
Co-conveners:  Marion Syndonia Bret-Harte, University of Alaska Fairbanks, Fairbanks, AK, United States and Maria Tzortziou, CUNY City College, New York, NY, United States
OSPA Liaisons:  Suzanne E Tank, University of Alberta, Edmonton, AB, Canada

Abstracts Submitted to this Session:

0228
 
A Survey of Submerged Aquatic Vegetation in Three Sub-arctic Lakes near Abisko, Sweden
Jynessa Sampson1, Kristen Stilson1, Ruth K Varner2, Patrick M Crill3, Martin Wik4 and Maurice Crawford5, (1)Elizabeth City State University, Elizabeth City, NC, United States, (2)Univ New Hampshire, Durham, NH, United States, (3)Stockholm University, Stockholm, Sweden, (4)Stockholm University, Dept. of Geological Sciences, Stockholm, Sweden, (5)University of Maryland Eastern Shore, Department of Natural Sciences, Princess Anne, MD, United States
0229
 
Comparative Carbon and Water Relations of Betula nana and Poa pratensis in West Greenland
Sean M.P. Cahoon1, Patrick F Sullivan2, Jeffrey M Welker3 and Eric Post1, (1)Penn State University, Department of Biology, University Park, PA, United States, (2)University of Alaska Anchorage, Environment and Natural Resources Institute, Anchorage, AK, United States, (3)University of Alaska Anchorage, Department of Biological Sciences, Anchorage, AK, United States
0230
 
Changes in tundra vascular plant biomass over thirty years at Imnavait Creek, Alaska.
Marion Syndonia Bret-Harte1, Eugenie Susanne Euskirchen1, Colin Edgar1, Diane C Huebner1, Kyoko Okano1, Colin Tucker1, Helene Genet1, Peter M Ray1 and Gaius R Shaver2, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)Marine Bio Lab, Woods Hole, MA, United States
0231
 
Distinct temperature sensitivity among taiga and tundra shrubs in Alaska
Laia Andreu-Hayles1,2, Kevin J Anchukaitis3 and Rosanne D'Arrigo1, (1)Columbia University of New York, Palisades, NY, United States, (2)Institut Català de Ciències del Clima, Barcelona, Spain, (3)Woods Hole Oceanographic Inst, Woods Hole, MA, United States
0232
 
Long-Term Perspectives of Shrub Expansions and Peat Initiation in Arctic Tundra on the North Slope of Alaska
Kate Cleary, Lehigh University, Bethlehem, PA, United States and Zicheng Yu, Lehigh University, Department of Earth and Environmental Sciences, Bethlehem, PA, United States
0233
 
The effect of freezing and drying on leaching of DOM from above ground vascular plant material from the Alaskan Arctic
Matt S Khosh and James W McClelland, University of Texas Marine Science Institute, Port Aransas, TX, United States
0234
 
Pathways and transformations of dissolved methane and dissolved inorganic carbon in Arctic tundra soils: Evidence from analysis of stable isotopes
Heather Throckmorton1, George Perkins2, Jordan D Muss3, Lydia J Smith4, Mark E Conrad5, Margaret S Torn6, Jeffrey M Heikoop7, Brent D Newman7, Cathy Jean Wilson3 and Stan D Wullschleger8, (1)Los Alamos National Laboratory, Los Alamos, NM, United States, (2)Los Alamos National Laboratory, Earth and Environmental Sciences Division, MS D469, Los Alamos, NM, United States, (3)Los Alamos National Lab, Los Alamos, NM, United States, (4)University of California Berkeley, Berkeley, CA, United States, (5)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (6)Berkeley Lab/UC Berkeley, Berkeley, CA, United States, (7)LANL, Los Alamos, NM, United States, (8)Oak Ridge National Laboratory, Oak Ridge, TN, United States
0235
 
Characterizing dissolved organic carbon concentrations and export in a boreal forest-peatland landscape under the influence of rapidly degrading discontinuous permafrost
Jessica Hanisch1, Ryan Connon2, Michael Templeton3, William L Quinton4, David Olefeldt5, Tim R Moore6, Nigel T Roulet7 and Oliver Sonnentag1, (1)University of Montreal, Montreal, QC, Canada, (2)Wilfrid Laurier University, New Hamburg, ON, Canada, (3)McGill University, Montreal, QC, Canada, (4)Wilfrid Laurier University, Waterloo, ON, Canada, (5)University of Alberta, Edmonton, AB, Canada, (6)McGill Univ, Montreal, QC, Canada, (7)McGill University, Department of Geography, and Global Environmental and Climate Change Centre, Montreal, QC, Canada
0236
 
Hydrology and biogeochemistry of zero-order channels draining arctic hillslopes
Tamara Harms1, Sarah Godsey2, Emily Longano1, Sarah Ludwig1, Rebecca R Risser1 and Caitlin R Rushlow3, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)Idaho State University, Idaho Falls, ID, United States, (3)Idaho State University, Pocatello, ID, United States
0237
 
Connections Among Terrestrial Sources of Organic and Inorganic Carbon and Surface Waters in a Permafrost- and Wildfire-Impacted Headwater Catchment, Alaska
Kimberly Wickland1, Joshua C Koch2, John T Crawford3,4, Mark Dornblaser4, Kathy Kelsey5 and Robert G Striegl4, (1)USGS, National Research Program, Baltimore, MD, United States, (2)USGS Alaska Science Center, Anchorage, AK, United States, (3)University of Wisconsin Madison, Center for Limnology, Madison, WI, United States, (4)USGS, National Research Program, Boulder, CO, United States, (5)University of Colorado, Boulder, CO, United States
0238
 
Utilising conservative tracers and spatial surveys to identify controls on pathways and DOC exports in an Arctic catchment.
Jason Scott Lessels1, Doerthe Tetzlaff2, Kerry J Dinsmore3, Lorna E Street4, Joshua Dean5, Ian J Washbourne3, Michael F Billett5, Robert Baxter6, Jens-Arne Subke5 and Philip A Wookey7, (1)University of Sydney, Sydney, NSW, Australia, (2)University of Aberdeen, Aberdeen, United Kingdom, (3)Centre for Ecology & Hydrology, Penicuik, United Kingdom, (4)Heriot Watt, School of Life Sciences, Edinburgh, United Kingdom, (5)University of Stirling, Stirling, United Kingdom, (6)University of Durham, Durham, DH1, United Kingdom, (7)Heriot-Watt University, Biological Sciences, Edinburgh, United Kingdom
0239
 
Aquatic carbon and GHG export from a permafrost catchment; identifying source areas and primary flow paths.
Kerry Jane Dinsmore1, Jason Scott Lessels2, Michael F Billett3, Lorna E Street4, Philip A Wookey5, Doerthe Tetzlaff6, Robert Baxter7, Jens-Arne Subke3, Joshua Dean3 and Ian J Washbourne8, (1)Centre for Ecology and Hydrology, Biosphere-Atmosphere Interactions, Edinburgh, United Kingdom, (2)University of Sydney, Sydney, NSW, Australia, (3)University of Stirling, Stirling, United Kingdom, (4)Heriot Watt, School of Life Sciences, Edinburgh, United Kingdom, (5)Heriot-Watt University, Biological Sciences, Edinburgh, United Kingdom, (6)University of Aberdeen, Aberdeen, United Kingdom, (7)University of Durham, Durham, DH1, United Kingdom, (8)Centre for Ecology & Hydrology, Penicuik, United Kingdom
0240
 
Seasonal Variability of Riverine Geochemistry (87Sr/86Sr, δ13CDIC, δ44/40Ca, and major ions) in Permafrost Watersheds on the North Slope of Alaska
Gregory O Lehn1, Andrew D Jacobson1, Thomas A Douglas2, James W McClelland3, Matt S Khosh4 and Amanda J Barker5, (1)Northwestern University, Evanston, IL, United States, (2)US Army Corps of Engineers, Jacksonville, FL, United States, (3)University of Texas Marine Science Institute, Port Aransas, TX, United States, (4)University of Texas at Austin, Austin, TX, United States, (5)University of Alaska Fairbanks, Fairbanks, AK, United States
0241
 
Basin-Scale Exports vs. Coastal Delivery of Carbon, Nutrients and Particulates Above and Below Arctic River Deltas
Robert G Striegl1, Suzanne E Tank2, Gayla Weeks2, Robert Max Holmes3 and James W McClelland4, (1)USGS WRD, Boulder, CO, United States, (2)University of Alberta, Edmonton, AB, Canada, (3)Woods Hole Research Center, Falmouth, MA, United States, (4)University of Texas Marine Science Institute, Port Aransas, TX, United States
0242
 
Arctic-COLORS (Coastal Land Ocean Interactions in the Arctic) – a NASA field campaign scoping study to examine land-ocean interactions in the Arctic
Peter Hernes, University of California - Davis, Davis, CA, United States, Maria Tzortziou, CUNY City College, New York, NY, United States, Joseph Salisbury, University of New Hampshire, Durham, NH, United States, Antonio Mannino, NASA Goddard Space Flight Center, Greenbelt, MD, United States, Patricia Matrai, Bigelow Lab for Ocean Sciences, East Boothbay, ME, United States, Marjorie Anne Friedrichs, Virginia Inst Marine Science, Gloucester Point, VA, United States and Carlos E Del Castillo, Applied Physics Laboratory Johns Hopkins, Laurel, MD, United States
0243
 
Factors Contributing to High CH4 and CO2 Efflux Rates from Thermokarst Lakes in the Rapidly Warming Hudson Bay Region
Alex Matveev1,2, Warwick F Vincent1,2 and Isabelle Laurion2,3, (1)Laval University, Quebec City, QC, Canada, (2)Centre d'études nordiques, Québec, QC, Canada, (3)Institut National de la Recherche Scientifique-Eau Terre Environnement INRS-ETE, Quebec City, QC, Canada
0244
 
The Application of Methane Clumped Isotope Measurements to Determine the Source of Large Methane Seeps in Alaskan Lakes
Peter M Douglas1, Daniel A Stolper1, John M Eiler1, Alex L Sessions1 and Katey M Walter Anthony2, (1)California Institute of Technology, Pasadena, CA, United States, (2)University of Alaska Fairbanks, Water and Environmental Research Center, Fairbanks, AK, United States
0245
 
Life Under the Ice: Spatial and Temporal Patterns in Rates of Water Column and Sediment Respiration in 5 Alaskan Arctic Lakes
Steven Sadro and Sally MacIntyre, University of California Santa Barbara, Santa Barbara, CA, United States
0246
 
Carbon Release from Melting Arctic Permafrost on the North Slope, AK: 12CO2 and 13CO2 Concentrations and Fluxes, and Their Relationship to Methane and Methane Isotope Concentrations Measured in August 2013
Jason Brent Munster1, David S Sayres1, Claire E Healy1, Edward J Dumas2, Ronald Dobosy3, John Kochendorfer4, Mark Heuer2, Tilden P Meyers2, Bruce Baker2 and James G Anderson1, (1)Harvard University, Cambridge, MA, United States, (2)NOAA/ATDD, Oak Ridge, TN, United States, (3)NOAA Oak Ridge, Oak Ridge, TN, United States, (4)NOAA Oak Ridge, Atmospheric Turbulence and Diffusion Division, Oak Ridge, TN, United States
0247
 
Flux Chamber Measurements of Methane Emissions and Stable Isotope Composition from an Arctic Wetland Using Field-Deployed Real-Time CRDS Vs Lab Measurements
Hilary A Thompson1, Jennifer C Stern2, Heather V Graham2, Lisa M Pratt3 and Jeffrey R White1, (1)Indiana University Bloomington, School of Public and Environmental Affairs, Bloomington, IN, United States, (2)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (3)Indiana University Bloomington, Department of Geological Sciences, Bloomington, IN, United States
0248
 
Boundary layer O3 dynamics and deposition to tundra during a summer in the Alaskan Arctic
Brie A Van Dam1,2, Detlev Helmig2, Paul V Doskey3,4, Samuel J Oltmans5,6 and Patrick Boylan2,7, (1)University of Alaska Fairbanks, Environmental Data Center, Toolik Field Station, Fairbanks, AK, United States, (2)University of Colorado at Boulder, Institute of Arctic and Alpine Research, Boulder, CO, United States, (3)Michigan Tech University, Department of Civil and Environmental Engineering, Houghton, MI, United States, (4)Michigan Technological University, Atmospheric Sciences Program, Houghton, MI, United States, (5)NOAA Boulder, Earth System Research Laboratory, Global Monitoring Division, Boulder, CO, United States, (6)University of Colorado at Boulder, CIRES, Boulder, CO, United States, (7)National Center for Atmospheric Research, Boulder, CO, United States
0249
 
Assessment of bubble-borne methane emissions in the East Siberian Arctic Shelf via interpretation of sonar data
Denis Chernykh1, Ira Leifer2, Natalia E Shakhova3 and Igor Peter Semiletov3, (1)Pacific Oceanological Institute FEB RAS, Vladivostok, Russia, (2)University of California Santa Barbara, Santa Barbara, CA, United States, (3)University of Alaska Fairbanks, Fairbanks, AK, United States
0250
 
New atmospheric methane observations in the Kara, Laptev, and East Siberian Seas during SWERUS-C3
Brett F Thornton1, Patrick M Crill1 and Igor Peter Semiletov2, (1)Stockholm University, Dept. of Geological Sciences, Stockholm, Sweden, (2)University of Alaska Fairbanks, Fairbanks, AK, United States
0251
 
Methane concentrations and oxidation in nearshore waters of the Lena River Delta
Vladimir Samarkin1, Natalia E Shakhova2, Igor Peter Semiletov2 and Samantha Benton Joye3, (1)University of Georgia, Athens, GA, United States, (2)University of Alaska Fairbanks, Fairbanks, AK, United States, (3)Univ Georgia, Athens, GA, United States
 
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