Presentations
The RUBISCO SFA hosts monthly Biogeochemistry Science Friday webinar events that are open to the public in support of the larger research community. Presenters include RUBISCO SFA team members and invited guest speakers from all over the world. To receive e-mail announcements of these webinar events, please contact Forrest M. Hoffman <forrest at climatemodeling dot org>.
Since April 2021, Biogeochemistry Science Friday webinars have been recorded and made available via the RUBISCO Science Focus Area YouTube Channel in the Biogeochemistry Science Friday Playlist. Remember to subscribe to the channel to make it easy to find in YouTube. You can optionally enable notifications if you wish to be alerted when new videos become available.
Upcoming presentations:
- April 12, 2024 –
Carbon Cycle Impacts of Land-based Mitigation – Invited Guest Speaker Anna Harper, University of Georgia
Previous Biogeochemistry Science Friday and related science presentations can be found here:
- March 15, 2024 –
Estimating Soil Organic Carbon at the Continental Scale Using Representativeness Analysis – Invited Guest Speaker Debjani Sihi, Emory University - October 13, 2023 –
The Weak Terrestrial Carbon Sink Hypothesis – James T. Randerson, University of California Irvine - September 15, 2023 –
Mapping Carbon Exchange Using Diurnal and Seasonal Cycles in Remotely Sensed CO2 – Gretchen Keppel-Aleks, University of Michigan - August 18, 2023 –
Influence of Orographic Precipitation on Coevolving Landforms and Vegetation in Semi-arid Ecosystems – Invited Guest Speaker: Ankur Srivastava, University of Technology Sydney, Australia - July 21, 2023 –
Wildfire-induced Increases in Photosynthesis in Boreal Forest Ecosystems of North America – Jinhyuk Kim, University of California Irvine - June 9, 2023 –
Get the Right Answer for the Wrong Reasons: An Example with the Macromolecular Rate Theory – Jinyun Tang, Lawrence Berkeley National Laboratory - April 14, 2023 –
Evaluating Northern Hemisphere Growing Season Net Carbon Flux in Climate Models Using Aircraft Observations – Morgan Loechli, University of Michigan - March 17, 2023 –
A Machine Learning Approach Targeting Parameter Estimation for Plant Functional Type Coexistence Modeling using ELM-FATES – Invited Guest Speaker: Lingcheng Li, Pacific Northwest National Laboratory - February 17, 2023 –
Quantification of Human Contribution to Soil Moisture-based Terrestrial Aridity – Yaoping Wang, Oak Ridge National Laboratory - November 18, 2022 –
Parametric Uncertainty and the Terrestrial Carbon Sink: The CLM5 Parameter Perturbation Experiment – David Lawrence, National Center for Atmospheric Research
Report on the Land Surface Modeling Summit and the Proposed International Land Modeling Forum – David Lawrence, National Center for Atmospheric Research - November 11, 2022 –
Integrating Observational and Modeling Approaches to Assess Forest Carbon Storage under Climate Change – Invited Guest Speaker: Kailiang Yu, Princeton University - October 14, 2022 –
Much of Zero Emissions Commitment Occurs Before Reaching Net Zero Emissions – Charles D. Koven, Lawrence Berkeley National Laboratory - September 30, 2022 –
Model Weights for the National Climate Assessment (NCA5) – Elias Massoud, Oak Ridge National Laboratory - August 16, 2022 –
Global Fire Response to Heat Waves – Yue Li, University of California Irvine
GriddingMachine: A Database of Global Scale Datasets for Earth System Modeling – Invited Guest Speaker: Yujie Wang, California Institute of Technology - July 22, 2022 –
Large Loss and Rapid Recovery of Vegetation Cover and Aboveground Biomass over Forest Areas in Australia during 2019–2020 – Invited Guest Speaker: Yuanwei Qin, University of Oklahoma - June 24, 2022 –
Model Meritocracy Based on Observations Does Not Reconcile Global Bottom-up and Top-down Wetland CH4 Emission Estimates – Kuang-Yu Chang, Lawrence Berkeley National Laboratory - April 29, 2022 –
Machine Learning–based Observation-constrained Projections Reveal Elevated Global Socioeconomic Risks from Wildfire – Jiafu Mao, Oak Ridge National Laboratory - January 21, 2022 –
The Historic Effect of CO2 on Global Photosynthesis – Trevor F. Keenan, Lawrence Berkeley National Laboratory - December 10, 2021 –
CO2 Fertilization of Terrestrial Photosynthesis Inferred from Site to Global Scales – Chi Chen, Lawrence Berkeley National Laboratory
Ecosystem Responses to Short-term Favorable Weather Conditions Modulate Decadal Water Use Efficiency Trends – Kuang-Yu Chang, Lawrence Berkeley National Laboratory - November 12, 2021 –
Multi-century Dynamics of the Climate and Carbon Cycle under Both High and Net Negative Emissions Scenarios – Charlie Koven, Lawrence Berkeley National Laboratory
Parameter Calibration with Neural Network-Based Emulation of a Land Model – Invited Guest Speaker: Katie Dagon, National Center for Atmospheric Research - October 15, 2021 –
Regional Influences on Northern Hemisphere Atmospheric CO2 Seasonal Amplification – Gretchen Keppel-Aleks, University of Michigan
Uncertainty Reduction of Earth System Land Model Simulations with Machine Learning and Causal Networks – Qing Zhu, Lawrence Berkeley National Laboratory - September 17, 2021 –
Development, Evaluation and Application of New Soil Moisture Products – Jiafu Mao, Oak Ridge National Laboratory
Riverine Hydrologic and Biogeochemical Interactions in Earth System Models – Invited Guest Speaker: Hong-Yi Li, University of Houston - August 20, 2021 –
Linking Plant Functional Traits and Carbon Processes to Evaluate Terrestrial Biosphere Models Based on a Traceability Framework – Invited Guest Speaker: Jianyang Xia, East China Normal University
Controls of Terrestrial Photosynthetic Seasonality: Two Aspects of Leaf Phenology and Characterization Approaches – Invited Guest Speaker: Jin Wu, Hong Kong University - July 23, 2021 –
Plant Physiological Responses to CO2 Influence the Transient Climate Response in CMIP6 Earth System Models – Invited Guest Speaker: Claire Zarakas, University of Washington
The Role of Terrestrial Phosphorus Limitation in Carbon-Climate Feedbacks – Min Xu, Oak Ridge National Laboratory - June 11, 2021 –
On VPD vs CO2 Impacts from Stomata to Global Climate – Invited Guest Speaker: Nate McDowell, Pacific Northwest National Laboratory - May 14, 2021 –
The Data Synergy and Scaling Effects of Large-Sample Multiphysics Catchment Modeling with Deep Learning – Invited Guest Speaker: Chaopeng Shen, Penn State University
Coupling Carbon and Redox Cycles in Soil Biogeochemical Models – Invited Guest Speaker: Ben Sulman, Oak Ridge National Laboratory - April 16, 2021 –
Empirical Global Fire Regimes Identify Common Fire Relationships Across the Planet – Invited Guest Speaker: William W. Hargrove, US Department of Agriculture Forest Service
The Carbon Costs of Tropical Deforestation through Changes on Regional Climate – Yue Li, University of California Irvine - February 19, 2021 –
Nutrient Limitation: Theories and Their Empirical Support – Jinyun Tang, Lawrence Berkeley National Laboratory
Quantifying the Changes in Carbon Cycle Extremes Due to Land Use Change and Attribution to Climate Drivers Through Year 2300 – Bharat Sharma, Northeastern University and Oak Ridge National Laboratory - January 22, 2021 –
The age distribution of global soil carbon inferred from radiocarbon measurements – Zheng Shi, Oak Ridge National Laboratory
The Effect of Including Observational Uncertainty in the ILAMB Scoring System" – Nathan Collier, Oak Ridge National Laboratory - July 31, 2020 – Satellite Observations Reveal Seasonal Redistribution of Northern Ecosystem Productivity in Response to Interannual Climate Variability – Gretchen Keppel-Aleks, University of Michigan
- June 19, 2020 – Dissolved Organic Carbon in Arctic Rivers: Reduced Model with Functional Groups – Amadini Mendis Jayasinghe, New Mexico Tech University and Los Alamos National Labortory
- May 15, 2020 – Evolving Land Models: Representing Grass Functional Diversity with Lineage-based Functional Types (LFTs) – Invited Guest Speaker: Christopher Still, Oregon State University
- May 1, 2020 – Plant Stoichiometry Traits in Earth System Land Models and Their Impacts on Terrestrial Ecosystem Carbon Cycle – Qing Zhu, Lawrence Berkeley National Laboratory
- March 20, 2020 – Machine Learning to Investigate Soil Organic Carbon Storage and Dynamics – Umakant Mishra, Argonne National Laboratory
- February 21, 2020 – Forest Disturbances Drive Changes in Biogeochemical Climate Feedbacks – Robinson I. Negrón Juárez, Lawrence Berkeley National Laboratory
- January 24, 2020 – Urban warming advances spring phenology but reduces temperature response of plants in the conterminous United States – Jiafu Mao, Oak Ridge National Laboratory
- October 25, 2019 – Assessing Terrestrial Biogeochemical Feedbacks in a Strategically Geoengineered Climate – Cheng-En Yang, University of Tennessee & Oak Ridge National Laboratory
- September 27, 2019 – Near-term predictions of marine and terrestrial biogeochemistry in CESM – Invited Guest Speaker: Nikki Lovenduski, University of Colorado
- July 12, 2019 – Environmental Process Models at LANL: Marine Organic Chemistry – Scott M. Elliott, Los Alamos National Labortory
- June 21, 2019 – Impact of Land Use and Land Cover Change on Regional Climate over the Contiguous United States using Variable-Resolution CESM2 – Invited Guest Speaker: Maoyi Huang, Pacific Northwest National Labortory
- May 17, 2019 – Using Machine Learning to Understand End of Season Changes in Carbon Uptake – Invited Guest Speaker: Pierre Gentine, Columbia University
- April 19, 2019 – Evaluating Models of Heterotrophic Respiration with Atmospheric CO2 – Gretchen Keppel-Aleks, University of Michigan
- March 22, 2019 – Acceleration of the hydrological cycle with climate warming disrupts marine ecosystem function in the Arctic Ocean – Weiwei Fu, University of California Irvine
- February 22, 2019 – Causality Benchmark: A Mechanistic Way of Diagnosing Model Fidelity – Qing Zhu, Lawrence Berkeley National Laboratory
- January 25, 2019 – Oceanic drivers for tropical terrestrial carbon cycle and extreme – Min Xu, Oak Ridge National Laboratory
- September 21, 2018 – The Roles of Vegetation in Mediating Changes in Precipitation and Runoff in the Tropics – Invited Guest Speaker: Gabe Kooperman, University of Georgia
- August 17, 2018 – Direct and Indirect Land Use and Land Cover Change Carbon Fluxes in CESM2 (Related paper: Lawrence et al., 2018) – Peter Lawrence, National Center for Atmospheric Research
- June 22, 2018 – Organic Carbon in Permafrost Affected Soils: Spatial Heterogeneity and Environmental Controllers – Umakant Mishra, Argonne National Laboratory
- May 18, 2018 – The Influence of Atlantic and Pacific Climate Oscillations on Amazon Carbon Cycling – Gretchen Keppel-Aleks, University of Michigan
- April 20, 2018 – Climate Change Impacts on Natural Sulfur Production: Ocean Acidification & Community Shifts – Zachary Menzo, Los Alamos National Laboratory and Evaluating Uncertainties in Marine Biogeochemical Models: The Case for Remote Aerosol Capability – Oluwaseun Ogunro, Oak Ridge National Laboratory
- March 23, 2018 – Remote SST Forcing and Local Land–Atmosphere Moisture Coupling as Drivers of Amazon Temperature and Carbon Cycle Variability – Paul Levine, University of California Irvine
- February 16, 2018 – A Unified Diagnostic System for Uncertainty Analysis of Land Carbon Cycle Models – Invited Guest Speaker: Yiqi Luo, Northern Arizona University
- November 17, 2017 – Development and Application of a Global Benchmark on the Long-Term Climate Sensitivity of Soil Carbon Turnover – Charlie Koven, Lawrence Berkeley National Laboratory
- October 20, 2017 – Data and Model Synthesis for Process-level Understanding of Terrestrial Ecosystems – Anthony P. Walker, Oak Ridge National Laboratory
- September 22, 2017 – Utilizing ILAMB to Assess Structural Advances and Forcing Uncertainty in the Community Land Model (CLM) – David M. Lawrence, National Center for Atmospheric Research
- August 11, 2017 – Scale Dependence of Land–Atmosphere Interaction Over Tropical Forests in CESM – Invited Guest Speaker: A. Scott Denning, Colorado State University
- April 28, 2017 – Impacts on Marine Biogeochemistry after Four Centuries of Climate Warming – J. Keith Moore, University of California Irvine
- March 10, 2017 – A data assimilation system for land surface models - Information from fluxes, phenology, and biomass – Invited Guest Speaker: David J. P. Moore, University of Arizona
- January 20, 2017 – Enhanced Terrestrial Carbon Uptake: Global Drivers and Implications for the Growth Rate of Atmospheric CO2 – Trevor F. Keenan, Lawrence Berkeley National Laboratory
- November 18, 2016 – Diagnosing drought in a changing climate – Invited Guest Speaker: Abigail L. S. Swann, University of Washington
- October 14, 2016 – Disentangling natural and anthropogenic controls on terrestrial vegetation growth trends – Jiafu Mao, Oak Ridge National Laboratory
- March 11, 2016 – Ambiguous numerical interpretation of nitrogen limitation results in divergent predictions of carbon–climate feedbacks – Jinyun Tang, Lawrence Berkeley National Laboratory
- January 29, 2016 – Quantifying impacts of scaling on environmental controls and spatial heterogeneity of soil organic carbon – Umakant Mishra, Argonne National Laboratory
- October 16, 2015 – Evaluation of the large-scale and regional climatic response across North Africa to natural variability in oceanic modes and terrestrial vegetation – Invited Guest Speaker: Michael Notaro, University of Wisconsin
- July 24, 2015 – Influence of phosphorus cycle coupling on land model response to changes in atmospheric CO2 and climate – Xiaojuan Yang, Oak Ridge National Laboratory
- May 28, 2015 – Multi-century changes in land and ocean contributions to the climate–carbon feedback – James T. Randerson, University of California Irvine
- February 6, 2015 – Biotic and abiotic interactions result in temperature sensitivity of soil carbon decomposition could not be parameterized with Q10 – Jinyun Tang, Lawrence Berkeley National Laboratory
- November 26, 2014 – Tropical forest allocations of productivity and biomass are not accurately predicted by CMIP5 models – Robinson Negrón-Juárez, Lawrence Berkeley National Laboratory
- November 26, 2014 – Landscape characterization and representativeness analysis for tropical sampling network design – Forrest M. Hoffman, Oak Ridge National Laboratory