GC011:
Carbon feedbacks in Earth’s climate system: using ocean and land variability to diagnose critical carbon cycle processes





Session ID#: 25049

Session Description:
The surface fluxes of the main greenhouse gases (CO2, CH4, N2O) are controlled by biogeochemical and physical processes in the land and ocean that are sensitive to changes in climate and atmospheric composition. Terrestrial carbon reservoirs contain at least five times and ocean carbon reservoirs contain at least fifty times more carbon than the atmosphere.  Thus limitations in our understanding of carbon cycle processes and their sensitivities to climate variability can lead to large uncertainties in predicting global terrestrial fluxes, as well as regional ocean fluxes.  Identifying critical carbon cycle processes and diagnosing their sensitivity to climate is vital for improving future climate predictions.  This session will focus on novel drivers and new insights on inter-annual to decadal variability of terrestrial and ocean fluxes of carbon and nitrogen as well as turnover times of various carbon reservoirs to constrain future climate-carbon cycle feedbacks, both from observational and modelling perspectives.
Primary Convener:  Ashley Ballantyne, University of Montana, Missoula, MT, United States
Conveners:  Tatiana Ilyina, Max Planck Institute for Meteorology, Hamburg, Germany, Benjamin Poulter, Montana State University, Institute on Ecosystems and the Department of Ecology, Bozeman, MT, United States and Ana Bastos, LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France
Co-Organized with:
Global Environmental Change, Atmospheric Sciences, Biogeosciences, and Ocean Sciences

Cross-Listed:
  • A - Atmospheric Sciences
  • B - Biogeosciences
  • OS - Ocean Sciences
Index Terms:

0428 Carbon cycling [BIOGEOSCIENCES]
1615 Biogeochemical cycles, processes, and modeling [GLOBAL CHANGE]
3337 Global climate models [ATMOSPHERIC PROCESSES]
4806 Carbon cycling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]

Abstracts Submitted to this Session:

Gretchen Keppel-Aleks1, Zachary Butterfield1, Scott C Doney2, Edward J Dlugokencky3, John Miller4 and Douglas C Morton5, (1)University of Michigan Ann Arbor, Ann Arbor, MI, United States, (2)Woods Hole Oceanographic Inst, Woods Hole, MA, United States, (3)NOAA, Boulder, CO, United States, (4)National Oceanic and Atmospheric Administration Earth Systems Research Laboratory (NOAA/ESRL), Boulder, United States, (5)NASA Goddard Space Flight Center, Greenbelt, MD, United States
Igor D Aleinov, Columbia University of New York, Palisades, NY, United States, Nancy Y Kiang, NASA Goddard Institute for Space Studies, New York, NY, United States and Anastasia Romanou, Columbia University of New York, Department of Applied Physics and Applied Mathematics, New York, NY, United States
Natasha MacBean1, Russell L Scott2, Joel A Biederman2, Nicolas Vuichard3, Amy Hudson1, Mallory Barnes1, Andrew M Fox1, William Kolby Smith4, Philippe P Peylin3, Fabienne Maignan3 and David J Moore1, (1)University of Arizona, School of Natural Resources and the Environment, Tucson, AZ, United States, (2)Agricultural Research Service Tucson, Southwest Watershed Research Center, Tucson, AZ, United States, (3)LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France, (4)University of Arizona, Tucson, AZ, United States
Yéssica Vanessa Contreras Pacheco, Juan Carlos Herguera and José Gerardo Quintanilla-Terminel, Center for Scientific Research and Higher Education at Ensenada, Ensenada, Mexico
Michael Dyonisius1, Vasilii V Petrenko1, Andrew Smith2, Benjamin Hmiel1, Jonas Beck3, Barbara Seth4, Michael Bock4, Quan Hua5, Bin Yang2, Christina M Harth6, Ross Beaudette6, James Lee7, Tobias Erhardt3, Jochen Schmitt8, Edward Brook7, Ray F Weiss6, Hubertus Fischer4 and Jeffrey P Severinghaus6, (1)University of Rochester, Department of Earth and Environmental Sciences, Rochester, NY, United States, (2)Australian Nuclear Science and Technology Organisation, Lucas Heights, Australia, (3)University of Bern, Physics Institute, Bern, Switzerland, (4)University of Bern, Bern, Switzerland, (5)ANSTO, Kirrawee Dc, Australia, (6)Scripps Institution of Oceanography, La Jolla, CA, United States, (7)Oregon State Univ, Corvallis, OR, United States, (8)University of Bern, Oeschger Centre for Climate Change Research, Bern, Switzerland
Laure Resplandy, Princeton, NJ, United States, Ralph F Keeling, Scripps Institution of Oceanography, La Jolla, CA, United States, Christian Rödenbeck, Max Planck Institute for Biogeochemistry, Jena, Germany, Britton B Stephens, National Center for Atmospheric Research, Boulder, CO, United States, Samar Khatiwala, Lamont-Doherty Earth Obs., Palisades, NY, United States, Keith B Rodgers, Princeton University, Princeton, NJ, United States, Matthew C Long, NCAR, Boulder, CO, United States, Laurent Bopp, CNRS, Paris Cedex 16, France and Pieter P Tans, NOAA, Earth System Research Laboratory, Boulder, CO, United States
Anders Ahlström1, Josep Canadell2, Vanessa Elizabeth Haverd2, Robert B Jackson3, Benjamin Smith4 and Minchao Wu5, (1)Stanford University, Lund, Sweden, (2)CSIRO, Oceans and Atmosphere, Canberra, Australia, (3)Stanford University, Stanford, CA, United States, (4)Lund University, Lund, Sweden, (5)Department of Physical Geography and Ecosystem Science, Lund University, Lund, Sweden
Qianyu Li1, Yiqi Luo2,3, Xingjie Lu3, Yingping Wang4, Xin Huang5 and Guanghui Lin Sr.1, (1)Department of Earth System Science, Tsinghua University, Beijing, China, (2)Northern Arizona University, Flagstaff, United States, (3)Northern Arizona University, Flagstaff, AZ, United States, (4)CSIRO, Ocean and Atmosphere Flagship, Aspendale, Australia, (5)Tsinghua University, Beijing, China
Zhao Li1, Jianyang Xia1, Anders Ahlström2, Annette Rinke3, Charles Koven4, Daniel J Hayes5, Duoying Ji6, Geli Zhang7, Gerhard Krinner8, Guangsheng Chen9, Jinwei Dong10, Junyi Liang11, John Moore12, Lifen Jiang13, Liming Yan1, Philippe Ciais14, Shushi Peng15, Yingping Wang16, Xiangming Xiao7, Zheng Shi11, Anthony David McGuire17 and Yiqi Luo18, (1)East China Normal University, Shanghai, China, (2)Lund University, Lund, Sweden, (3)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Potsdam, Germany, (4)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (5)Battelle Oak Ridge, Oak Ridge, TN, United States, (6)Beijing Normal University, Beijing, China, (7)University of Oklahoma, Norman, OK, United States, (8)LGGE, St Martin d'Hères Cedex, France, (9)Oak Ridge National Laboratory, Oak Ridge, TN, United States, (10)Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Chaoyang District, Beijing, China, (11)University of Oklahoma Norman Campus, Norman, OK, United States, (12)Beijing Normal University, College of Global Change and Earth System Science, Beijing, China, (13)Northern Arizona University, Flagstaff, AZ, United States, (14)LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette, France, (15)Peking University, College of Urban and Environmental Sciences, Beijing, China, (16)CSIRO, Ocean and Atmosphere Flagship, Aspendale, Australia, (17)U.S. Geological Survey, Fairbanks, AK, United States, (18)Northern Arizona University, Flagstaff, United States
Julia K. Green, Columbia University of New York, Palisades, NY, United States, Sonia I Seneviratne, ETH, Zurich, Switzerland, Alexis M Berg, Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States, Kirsten Lynn Findell, GFDL, Princeton, NJ, United States, Stefan Hagemann, MPI for Meteorology, Hamburg, Germany, David M Lawrence, National Center for Atmospheric Research, Boulder, CO, United States and Pierre Gentine, Columbia University, New York, NY, United States
Forrest M. Hoffman1, James Tremper Randerson2, J. Keith Moore3, Michael Goulden4, Weiwei Fu3, Charles Koven5, Abigail L. S. Swann6, Natalie M Mahowald7, Keith T Lindsay8 and Ernesto Munoz9, (1)Oak Ridge National Laboratory, Computational Earth Sciences, Oak Ridge, TN, United States, (2)Univ California Irvine, Irvine, CA, United States, (3)University of California Irvine, Earth System Science, Irvine, CA, United States, (4)University of California, Irvine, CA, United States, (5)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (6)University of Washington, Atmospheric Sciences, Seattle, WA, United States, (7)Cornell University, Department of Earth and Atmospheric Sciences, Ithaca, NY, United States, (8)NCAR, Boulder, CO, United States, (9)National Center for Atmospheric Research, Boulder, CO, United States
Shilong Piao1, Shushi Peng1, Zhuo Liu1, Philippe Ciais2, Tao Wang3, Mengtian Huang4, Anders Ahlstrom5, John F. Burkhart6, Frédéric Chevallier2, Su-Jong Jeong7, Ivan A. Janssens8, Xin Lin2, Jiafu Mao9, Ranga Myneni10, Xiaoying Shi9, Ivar R van der Velde11, Andreas Stohl12, Anwar Mohammat13, Yitong Yao4, Josep Peñuelas14, Zaichun Zhu1 and Pieter P Tans15, (1)Peking University, College of Urban and Environmental Sciences, Beijing, China, (2)LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette, France, (3)Chinese Academy of Sciences, Institute of Tibetan Plateau Research, Beijing, China, (4)Peking University, Beijing, China, (5)Stanford University, School of Earth, Energy and Environmental Sciences, San Francisco, United States, (6)University of Oslo, Department of Geosciences, Oslo, Norway, (7)South University of Science and Technology of China, School of Environmental Science and Engineering, Shenzhen, China, (8)University of Antwerp, Department of Biology, Antwerp, Belgium, (9)Oak Ridge National Laboratory, Environmental Sciences Division and Climate Change Science Institute, Oak Ridge, TN, United States, (10)Boston University, Earth and Environment, Boston, MA, United States, (11)National Oceanic and Atmospheric Administration Earth Systems Research Laboratory (NOAA/ESRL), Boulder, United States, (12)Norwegian Institute for Air Research, Kjeller, Norway, (13)Chinese Academy of Sciences, Xinjiang Institute of Ecology and Geography, Urumqi, China, (14)CREAF, Cerdanyola del Valles, Catalonia, Spain, (15)NOAA, Earth System Research Laboratory, Boulder, CO, United States
Abhishek Chatterjee1, David Schimel2, Britton B Stephens3, David Crisp4, Annmarie Eldering5, Michael R Gunson2, Richard A Feely6, Michelle M Gierach2, Ralph F Keeling7, Adrienne Sutton8 and Brad Weir1, (1)NASA Goddard Space Flight Center, Global Modeling and Assimilation Office, Greenbelt, MD, United States, (2)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (3)National Center for Atmospheric Research, Boulder, CO, United States, (4)Jet Propulsion Lab, Pasadena, CA, United States, (5)JPL, Pasadena, CA, United States, (6)NOAA PMEL, Seattle, WA, United States, (7)Scripps Institution of Oceanography, La Jolla, CA, United States, (8)NOAA Pacific Marine Environmental Laboratory, Seattle, WA, United States
Eunjee Lee1, Randal D Koster2, Lesley E Ott3, Brad Weir4, Sarith P P Mahanama5, Yehui Chang3 and Fanwei Zeng3, (1)Universities Space Research Association Columbia, Columbia, MD, United States, (2)NASA Goddard SFC, Greenbelt, MD, United States, (3)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (4)Universities Space Research Association, Columbia, United States, (5)NASA Goddard Space Flight Center, Global Modeling and Assimilation Office, Greenbelt, MD, United States
Margreet van Marle1,2, Dave van Wees2, Richard A Houghton3, Alexander Nassikas3 and Guido van der Werf2, (1)Deltares, Delft, Netherlands, (2)VU University Amsterdam, Amsterdam, Netherlands, (3)Woods Hole Research Center, Falmouth, MA, United States
Heather D Graven, Imperial College London, London, SW7, United Kingdom and Hamish Warren, Imperial College London, London, United Kingdom