OC33A:
The Evolving Ocean Carbon Sink: Processes and Impacts I

Session ID#: 92421

Session Description:
Cumulatively since preindustrial times, only the ocean has been a significant sink for anthropogenic carbon. The partitioning of carbon between the atmosphere and ocean will be a key determinant of future climate change. Thus, our community must develop the capacity to accurately diagnose the evolving ocean carbon budget and its variability using models, observations and theory. Both external forcing and internal physical and biogeochemical processing modify surface fluxes and the internal redistribution of carbon. Regional patterns of key biogeochemical stressors, most notably ocean acidification, will also be driven by the ocean’s carbon uptake. In this session, we welcome contributions that quantify the rates and processes of ocean carbon uptake and storage of anthropogenic carbon, modification of the natural carbon cycle due to physical and biological processes, and consequences of climate change and acidification for marine ecosystems. Variability and change across timescales from seasonal to millennial are of interest. We welcome studies that focus on open and coastal regions; on the surface or the interior; and that apply observations, models, and theory.
Co-Sponsor(s):
  • AI - Air-Sea Interactions
  • OB - Ocean Biology and Biogeochemistry
  • PC - Past, Present and Future Climate
Primary Chair:  Galen A McKinley, Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, United States
Co-chairs:  Nicole S Lovenduski, University of Colorado, Department of Atmospheric and Oceanic Sciences, Boulder, CO, United States and Wolfgang Koeve, GEOMAR, Kiel, Germany
Primary Liaison:  Galen A McKinley, Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, United States
Moderators:  Wolfgang Koeve, GEOMAR, Kiel, Germany and Nicole S Lovenduski, University of Colorado, Department of Atmospheric and Oceanic Sciences, Boulder, CO, United States
Student Paper Review Liaison:  Nicole S Lovenduski, University of Colorado, Department of Atmospheric and Oceanic Sciences, Boulder, CO, United States

Abstracts Submitted to this Session:

Seasonal Marine Carbon System Processes in an Arctic Coastal Landfast Sea Ice Environment Using an Innovative Underwater Sensor Platform (640053)
Patrick Duke1, Brent Else2, Lisa Ann Miller3, Akash R Sastri4, Stephen Gonski5, Samantha Jones2, Shawn Marriott6, Richard K Dewey7 and Helmuth Thomas8, (1)University of Victoria, School of Earth and Ocean Sciences, Victoria, BC, Canada, (2)University of Calgary, Department of Geography, Calgary, AB, Canada, (3)Institute of Ocean Sciences, Fisheries and Oceans Canada, Sidney, BC, Canada, (4)Fisheries and Oceans Canada, Institute of Ocean Sciences, Sidney, BC, Canada, (5)University of Alaska Fairbanks, School of Fisheries & Ocean Sciences, Selbyville, DE, United States, (6)University of Calgary, Cambridge Bay, NU, Canada, (7)Univ. of Victoria, Victoria, BC, Canada, (8)Dalhousie University, Halifax, NS, Canada
Observing recent trends in the carbon cycle of the Northeast Pacific (656234)
Ana C Franco, Universtiy of British Columbia, Earth, Oceans and Atmospheric Science, Vancouver, BC, Canada, Debby Ianson, Institute of Ocean Sciences, Fisheries and Oceans Canada,, Sidney, BC, Canada and Tetjana Ross, Institute of Ocean Sciences, Fisheries and Oceans Canada, Sidney, BC, Canada
Multi-decadal variability of anthropogenic and natural carbon in central Labrador Sea (645887)
Lorenza Raimondi1, Toste S Tanhua2, Kumiko Azetsu-Scott3, Igor Yashayaev4 and Douglas Wallace1, (1)Dalhousie University, Department of Oceanography, Halifax, NS, Canada, (2)Helmholtz Centre for Ocean Research Kiel, GEOMAR, Kiel, Germany, (3)Bedford Inst Oceanography, Dartmouth, NS, Canada, (4)Bedford Institute of Oceanography, Fisheries and Oceans Canada, Dartmouth, NS, Canada
The imprint of the Amazon River on the air-sea CO2 flux in the Tropical North Atlantic Ocean: key drivers and spatiotemporal variability (651676)
Domitille Louchard, ETH Zurich Swiss Federal Institute of Technology Zurich, Zurich, Switzerland, Nicolas Gruber, ETH Zurich, Environmental Physics, Zurich, Switzerland and Matthias Munnich, ETH Zurich, Environmental Systems Science, Switzerland
How is the Ocean Carbon Reservoir Filled? (651286)
Xabier Davila1, Geoffrey Gebbie2, Ailin Brakstad1, Siv Lauvset3 and Are Olsen4, (1)Bjerknes Centre for Climate Research, University of Bergen, Geophysical Institute, Bergen, Norway, (2)Woods Hole Oceanographic Institute, Woods Hole, United States, (3)Uni Research, Uni Climate, Bergen, Norway, (4)University of Bergen, Geophysical Institute, Bergen, Norway
Decadal variability of the ocean carbon sink (653122)
Timothy J DeVries, University of California Santa Barbara, Santa Barbara, CA, United States, Corinne Le Quere, University of East Anglia, Tyndall Centre for Climate Change Research, School of Environmental Sciences, Norwich, United Kingdom, Oliver Andrews, University of Bristol, School of Geographical Sciences, Bristol, United Kingdom, Judith Hauck, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research, Marine Biogeoscoences, Bremerhaven, Germany, Tatiana Ilyina, Max Planck Institute for Meteorology, Hamburg, Germany, Peter Landschutzer, ETH Zurich, Zurich, Switzerland, Andrew Lenton, CSIRO Hobart, Hobart, TAS, Australia, Ivan D Lima, Woods Hole Oceanographic Inst, Woods Hole, MA, United States, Michael Nowicki, University of California, Santa Barbara, Geography, United States, Jorg Schwinger, NORCE Climate, Bergen, Norway and Roland Séférian, Meteo-France - CNRS, CNRM, CEN, Toulouse, France
Forced mechanisms of decadal variability in the ocean carbon sink (654424)
Galen A McKinley1, Amanda R Fay2, Yassir Eddebbar3, Lucas Gloege2 and Nicole S Lovenduski4, (1)Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, United States, (2)Lamont -Doherty Earth Observatory of Columbia University, Palisades, NY, United States, (3)Scripps Institution of Oceanography, La Jolla, CA, United States, (4)University of Colorado, Department of Atmospheric and Oceanic Sciences, Boulder, CO, United States
Air-Sea Disequilibrium Enhances Glacial Ocean Carbon Storage (653372)
Andreas Schmittner, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States, Samar Khatiwala, University of Oxford, Department of Earth Sciences, Oxford, United Kingdom and Juan Muglia, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), CESIMAR, Puerto Madryn, Argentina