B21E:
New Mechanisms, Feedbacks, and Approaches for Improving Predictions of the Global Carbon Cycle in Earth System Models I Posters


Session ID#: 10314

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, 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:  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
OSPA Liaison:  James Tremper Randerson, University of California Irvine, Earth System Science, Irvine, CA, United States

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:

Differing mechanisms in the CO2 seasonal cycle and its amplitude change (86219)
Fang Zhao and Ning Zeng, University of Maryland College Park, College Park, MD, United States
Functioning of the Ocean Biological Pump in the Oxygen Minimum Zones (73656)
Jefferson Keith Moore, University of California Irvine, Earth System Science, Irvine, United States
Design and Application of a Community Land Benchmarking System for Earth System Models (86231)
Mingquan Mu1, Forrest M. Hoffman2, David M Lawrence3, William J Riley4, Gretchen Keppel-Aleks5, Charles D Koven4, Erik Ben Kluzek3, Jiafu Mao6 and James Tremper Randerson7, (1)University of California Irvine, Department of Earth System Science, Irvine, United States, (2)Oak Ridge National Laboratory, Computational Sciences & Engineering Division and Climate Change Science Institute, Oak Ridge, TN, United States, (3)NSF National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, United States, (4)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (5)University of Michigan Ann Arbor, Climate and Space Sciences and Engineering, Ann Arbor, United States, (6)Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, TN, United States, (7)University of California Irvine, Earth System Science, Irvine, CA, United States
Tropical precipitation-carbon cycle links in CMIP5 Earth System Models  (70196)
Samantha Basile, University of Michigan Ann Arbor, Ann Arbor, MI, United States and Gretchen Keppel-Aleks, University of Michigan Ann Arbor, Climate and Space Sciences and Engineering, Ann Arbor, United States
Observed allocations of productivity and biomass, and turnover times in tropical forests are not accurately represented in CMIP5 Earth system models (70826)
Robinson I Negron Juarez1, Charles Koven2, William J Riley1, Ryan G Knox1 and Jeffrey Q Chambers3, (1)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (2)Lawrence Berkeley National Laboratory, Climate & Ecosystem Sciences Division, Berkeley, United States, (3)University of California, Berkeley, CA, United States
Evaluation of two decomposition schemes in Earth System Models against LIDET, C14 observations and global soil carbon maps (77216)
Xiaojuan Yang, Oak Ridge National Lab, Oak Ridge, TN, United States, Daniel M Ricciuto, Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, TN, United States and Peter E Thornton, Oak Ridge National Laboratory, Climate Change Science Institute and Environmental Sciences Division, Oak Ridge, United States
Implementation of a canopy air space scheme into the Community Land Model (77415)
Dr. Min Xu, Oak Ridge National Laboratory, Computational Sciences and Engineering Division and Climate Change Science Institute, Oak Ridge, TN, United States and Forrest M. Hoffman, Oak Ridge National Laboratory, Oak Ridge, TN, United States; Computational Earth Sciences Group and Climate Change Science Institute, Oak Ridge National Laboratory, Oak Ridge, United States
Evaluation of Vegetation Biomass in CMIP5 Models over the Northern High-Latitudes (65802)
Cheng-En Yang1,2, Jiafu Mao3, Forrest M. Hoffman4, Daniel M Ricciuto3 and Joshua S Fu5, (1)University of Tennessee, Civil and Environmental Engineering, Knoxville, TN, United States, (2)Oak Ridge National Laboratory, Computational Earth Sciences Group and Climate Change Science Institute, Oak Ridge, TN, United States, (3)Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, TN, United States, (4)Oak Ridge National Laboratory, Computational Sciences & Engineering Division and Climate Change Science Institute, Oak Ridge, TN, United States, (5)University of Tennessee, Civil and Environmental Engineering, Knoxville, United States
Improving the seasonal-deciduous spring phenology submodel in the Community Land Model 4.5: Impacts on carbon and water cycling under future climate scenarios (64662)
Min Chen, University of Wisconsin Madison, Forest and Wildlife Ecology, Madison, WI, United States, Eli K Melaas, Boston University, Department of Earth & Environment, Boston, MA, United States, Josh Gray, Boston University, Boston, MA, United States, Mark A Friedl, Boston University, Earth and Environment, Boston, MA, United States and Andrew D Richardson, Harvard University, Cambridge, United States
OCO-2 Column Carbon Dioxide and Biometric Data Jointly Constrain Parameterization and Projection of a Global Land Model (79886)
Zheng Shi1, Sean Crowell2, Yiqi Luo2, Peter J Rayner3 and Berrien Moore III2, (1)University of Oklahoma, Institute for Environmental Genomics, Department of Microbiology and Plant Biology, Norman, United States, (2)University of Oklahoma Norman Campus, Norman, OK, United States, (3)University of Melbourne, Parkville, VIC, Australia
Impacts of Changes in Solar Radiation on Terrestrial Gross Primary Productivity of China (73766)
Xiaocui Wu1, Weimin Ju2, Yibo Liu3, Yanlian Zhou4, Dengqiu Li4 and Xiangming Xiao5, (1)University of Oklahoma Norman Campus, Norman, OK, United States, (2)Nanjing University, Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, International Institute for Earth System Science, Nanjing, China, (3)NUIST Nanjing University of Information Science and Technology, Nanjing, China, (4)Nanjing University, Nanjing, China, (5)University of Oklahoma Norman Campus, School of Biological Sciences, Norman, United States
Different representations of biological nitrogen fixation cause major variation in projected terrestrial biosphere responses to elevated levels of atmospheric CO2 (69160)
Johannes Meyerholt1, Soenke Zaehle1 and Matthew J Smith2, (1)Max Planck Institute for Biogeochemistry, Jena, Germany, (2)Microsoft Research, Cambridge, United Kingdom
Development of Advanced Eco-hydrologic and Biogeochemical Coupling Model to Re-evaluate Greenhouse Gas Budget of Biosphere (78497)
Tadanobu Nakayama, NIES National Institute of Environmental Studies, Ibaraki, Japan and Shamil S Maksyutov, National Institute for Environmental Studies, Satellite Observation Center, Tsukuba, Japan
Mycorrhizal Controls on Nitrogen Uptake Drive Carbon Cycling at the Global Scale (81439)
Mingjie Shi, Pacific Northwest National Laboratory, Richland, WA, United States; University of California at Los Angeles, Joint Institute for Regional Earth System Science and Engineering, Los Angeles, CA, United States, Joshua B Fisher, NASA Jet Propulsion Laboratory, Pasadena, CA, United States, Edward R Brzostek, West Virginia University, Biology, Morgantown, WV, United States and Richard P Phillips, Indiana University, Department of Biology, Bloomington, IN, United States
Spin-up and Tuning of the Global Carbon Cycle Model Inside the GISS ModelE2 GCM (85012)
Igor D Aleinov1, Nancy Y Kiang2 and Anastasia Romanou2, (1)Columbia University of New York, Palisades, NY, United States, (2)NASA Goddard Institute for Space Studies, New York, NY, United States

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