B23J:
New Mechanisms, Feedbacks, and Approaches for Improving Predictions of the Global Carbon Cycle in Earth System Models II


Session ID#: 7745

Session Description:
Predictions of future atmospheric CO2 concentrations are influenced by global carbon and nutrient cycles, climate interactions, and feedbacks. Relevant processes operate at different spatial and temporal scales, vary across marine and terrestrial ecosystems and remain uncertain. Moreover, feedbacks may be altered by anthropogenic disturbance agents, including tropospheric O3, acceleration of the N and H2O cycles, eutrophication, and land cover/use changes. This session focuses on integrated understanding of feedback mechanisms, structure and function of critical and vulnerable ecosystems, human activities, and approaches for evaluating and benchmarking Earth System Models.
Primary Convener:  Forrest M. Hoffman, Oak Ridge National Laboratory, Computational Sciences & Engineering Division and Climate Change Science Institute, Oak Ridge, TN, United States; Computational Earth Sciences Group and Climate Change Science Institute, Oak Ridge National Laboratory, Oak Ridge, TN, United States
Conveners:  Atul K. Jain, University of Illinois at Urbana Champaign, Department of Atmospheric Sciences, Urbana, IL, United States, James Tremper Randerson, University of California Irvine, Earth System Science, Irvine, CA, United States and Jefferson Keith Moore, University of California Irvine, Department of Earth System Science, Irvine, CA, United States
Chairs:  Forrest M. Hoffman, Computational Earth Sciences Group and Climate Change Science Institute, Oak Ridge National Laboratory, Oak Ridge, TN, United States and Atul K Jain, University of Illinois at Urbana Champaign, Urbana, IL, United States
OSPA Liaison:  James Tremper Randerson, University of California Irvine, Earth System Science, Irvine, CA, United States
Co-Organized with:
Biogeosciences, Global Environmental Change, Hydrology, and Ocean Sciences

Cross-Listed:
  • A - Atmospheric Sciences
  • GC - Global Environmental Change
  • H - Hydrology
  • OS - Ocean Sciences
Co-Sponsor(s):
  • IGBP: International Geosphere-Biosphere Programme -
Index Terms:

0428 Carbon cycling [BIOGEOSCIENCES]
0439 Ecosystems, structure and dynamics [BIOGEOSCIENCES]
1615 Biogeochemical cycles, processes, and modeling [GLOBAL CHANGE]
1622 Earth system modeling [GLOBAL CHANGE]

Abstracts Submitted to this Session:

Diagnosing Drought in a Changing Climate (Invited) (60348)
Abigail L. S. Swann, University of Washington, Department of Atmospheric Sciences and Biology, Seattle, United States, Forrest M. Hoffman, Oak Ridge National Laboratory, Computational Sciences & Engineering Division and Climate Change Science Institute, Oak Ridge, TN, United States, Charles D Koven, Lawrence Berkeley National Laboratory, Berkeley, CA, United States and James Tremper Randerson, University of California Irvine, Earth System Science, Irvine, CA, United States
Implementation ambiguity: The fifth element long lost in uncertainty budgets for land biogeochemical modeling (63681)
Jinyun Tang and William J Riley, Lawrence Berkeley National Laboratory, Berkeley, CA, United States
Terrestrial carbon storage dynamics: Chasing a moving target (Invited) (68362)
Yiqi Luo1, Zheng Shi2, Lifen Jiang3, Jianyang Xia4, Ying Wang1, Manoj Kc1, Junyi Liang1, Xingjie Lu5, Shuli Niu6, Anders Ahlström7, Oleksandra Hararuk8, Alan Hastings9, Forrest M. Hoffman10, Belinda Medlyn11, Martin Rasmussen12, Matthew J Smith13, Kathe E Todd-Brown14 and Yingping Wang15, (1)University of Oklahoma Norman Campus, Norman, OK, United States, (2)University of Oklahoma, Institute for Environmental Genomics, Department of Microbiology and Plant Biology, Norman, United States, (3)Cornell University, School of Integrative Plant Science, Ithaca, NY, United States, (4)East China Normal University, School of Ecological and Environmental Sciences, Shanghai, China, (5)Northern Arizona University, Flagstaff, United States, (6)Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China, (7)Stanford University, Stanford, CA, United States, (8)Pacific Forestry Centre, Victoria, BC, Canada, (9)University of California Davis, Davis, CA, United States, (10)Computational Earth Sciences Group and Climate Change Science Institute, Oak Ridge National Laboratory, Oak Ridge, TN, United States, (11)Western Sydney University, Hawkesbury Institute for the Environment, Sydney, Australia, (12)Imperial College London, London, United Kingdom, (13)Microsoft Research, Cambridge, United Kingdom, (14)University of Florida, Ft Walton Beach, FL, United States, (15)CSIRO, Ocean and Atmosphere Flagship, Aspendale, Australia
Interactions Between Soil Organic Carbon Concentration and Soil Thermal and Hydraulic Dynamics and Its Impact on Soil Carbon Storage in Northern High-latitudes (74589)
Shijie Shu, University of Illinois at Urbana Champaign, Department of Atmospheric Sciences, Urbana, IL, United States, Umakant Mishra, Argonne National Laboratory, Environmental Science Division, Argonne, United States, Forrest M. Hoffman, Oak Ridge National Laboratory, Computational Sciences & Engineering Division and Climate Change Science Institute, Oak Ridge, TN, United States, Charles D Koven, Lawrence Berkeley National Laboratory, Berkeley, CA, United States and Atul K Jain, University of Illinois at Urbana Champaign, Urbana, IL, United States
Changing ocean biogeochemistry in the CESM Large Ensemble (Invited) (65298)
Nicole S Lovenduski, University of Colorado, Department of Atmospheric and Oceanic Sciences, Boulder, CO, United States, Galen A McKinley, Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, United States, Amanda R Fay, Lamont -Doherty Earth Observatory of Columbia University, Palisades, NY, United States, Matthew C Long, [C]Worthy, LLC, Boulder, United States and Keith T Lindsay, National Center for Atmospheric Research, Boulder, CO, United States
Sources of uncertainties in 21st century projections of marine ecosystem drivers (67435)
Thomas L Froelicher, Universtity of Bern, Climate and Environmental Physics, Bern, Switzerland, Keith B Rodgers, IBS Center for Climate Physics, Pusan National University, Busan, South Korea, Charles A Stock, Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States and William W.L. Cheung, The University of British Columbia, Institute for the Oceans and Fisheries, Vancouver, BC, Canada
Chasing Perfection: Should We Reduce Model Uncertainty in Carbon Cycle-Climate Feedbacks (Invited) (60578)
Gordon B Bonan1, Danica Lombardozzi1, William R Wieder2, Keith T Lindsay1 and Quinn Thomas3, (1)National Center for Atmospheric Research, Boulder, CO, United States, (2)National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, CO, United States, (3)Virginia Polytechnic Institute and State University, Forest Resources and Environmental Conservation, Blacksburg, VA, United States
Effects of Nitrogen Availability, Climate, and Land-Use Change on Future Terrestrial Carbon Sink (78362)
Daniela Kracher, Max Planck Institute for Meteorology, Hamburg, Germany

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