B052
Global Nitrous Oxide Budget and Nitrogen–Climate Interactions: Advances in Observations, Modeling, and Synthesis
Session ID#: 251229
Session Description:
Nitrogen (N) plays a critical role in the Earth system, influencing climate directly through nitrous oxide (N₂O) emissions and indirectly via aerosol formation, ozone production, and its coupling with the carbon cycle. As atmospheric N₂O levels continue to rise, substantial gaps remain in our understanding and prediction of N2O sources and sinks, spatiotemporal patterns, and N-climate feedbacks. This session invites innovative research that address these gaps, advances global and national assessments of the N₂O budget, and illuminate the complex interplay among nitrogen, carbon, and climate. We welcome contributions leveraging atmospheric inversions, process-based modeling (terrestrial, aquatic, and oceanic), remote sensing, machine learning/artificial intelligence, isotope tracing, field observations, benchmarking frameworks and datasets. Multi-disciplinary and cross-scale approaches are particularly encouraged. This session aligns with international initiatives such as the Global Nitrous Oxide Budget, RECCAP3, and UNFCCC Global Stocktake, with the aim of strengthening the scientific foundations for climate mitigation and sustainable nitrogen management.
Co-Sponsor(s):
Index Terms:
0315 Biosphere/atmosphere interactions [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0469 Nitrogen cycling [BIOGEOSCIENCES]
4845 Nutrients and nutrient cycling [OCEANOGRAPHY: CHEMICAL]
Primary Convener: Hanqin Tian, Boston College, Schiller Institute for Integrated Science and Society, Department of Earth and Environmental Sciences, Boston, United States
Conveners: Eric A Davidson, University of Maryland, Center for Environmental Science, Frostburg, MD, United States, Brian Buma, Environmental Defense Fund Boulder, Boulder, CO, United States and Dr. Xingchen Tony Wang, PhD, Boston College, Department of Earth and Environmental Sciences, Chestnut Hill, MA, United States
Nitrous Oxide Production and Consumption in Surface Ocean Waters (1858983)
Bess B Ward1, Weiyi Tang2, Xianhui Wan3, Claudia Frey4, Catherine Hexter5 and Elizabeth Leon-Palmero5, (1)Princeton University, Department of Geosciences, Princeton, NJ, United States, (2)University of South Florida St. Petersburg, St Petersburg, United States, (3)State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, China, (4)University of Basel, Basel, Switzerland, (5)Princeton University, Geosciences, Princeton, United States
Hydrologic Connectivity Amplifies Riverine N₂O Emission Hotspots and Hot Moments across the continental United States (1880733)
Minpeng Hu, Department of Natural Resources and Environmental Sciences, University of Illinois, Urbana, United States, Zhongjie Yu, University of Illinois Urbana-Champaign, Department of Natural Resources and Environmental Sciences, Urbana, United States, Timothy J Griffis, University of Minnesota Twin Cities, Department of Soil, Water, and Climate, St. Paul, United States and John M Baker, USDA ARS retired, St. Paul, United States
Advancing N2O Isotopic Measurements Using Picarro’s new PI5131-i isotopic N2O Analyzer and Sage gas autosampler (1893486)
Joyeeta Bhattacharya1, Juan Carlos Guerrero2, Jan Woźniak3, Magdalena Hofmann3, Tina Hemenway1, Russell Chedgy4 and Jingang Zhou1, (1)Picarro, Inc., Santa Clara, United States, (2)Picarro Inc., Santa Clara, United States, (3)Picarro, B.V., Eindhoven, Netherlands, (4)Picarro, Inc., Santa Clara, CA, United States
Advancing the global understanding and quantification of nitrous oxide emissions from agricultural soils (1901693)
Diego Grados Bedoya1,2, Naiqing Pan3, Wensu Hao3, Mingming Zong4, Xiaotong Tang4, Yongfa You5, Hanqin Tian3,6, César Terrer1 and Diego Abalos2, (1)Massachusetts Institute of Technology, Cambridge, United States, (2)Aarhus University, Agroecology, Aarhus, Denmark, (3)Boston College, Schiller Institute for Integrated Science and Society, Department of Earth and Environmental Sciences, Boston, United States, (4)Aarhus University, Agroecology, Tjele, Denmark, (5)Virginia Tech, School of Plant and Environmental Sciences, Virginia, United States, (6)Department of Earth and Environmental Sciences, Boston College, Chestnut Hill, Massachusetts, United States, Boston, United States
Drivers of Fertilizer-Induced N2O Emissions and Regional Assessment in China (1912469)
Xiaodong Ge, School of Environment, Tsinghua University, Beijing, CHINA, Danni Xie, Chang'an University, Xi'an, China, Jan Mulder, Norwegian University of Life Sciences, Ås, Norway and Lei Duan, Tsinghua University, Beijing, China
Integrating Top-Down Estimates and Environmental Drivers to Improve Process-Based N₂O Modeling (1916424)
Weihang Liu, Iowa State University, Ames, IA, United States, Chaoqun Lu, Iowa State University, Department of Ecology, Evolution, and Organismal Biology, Ames, United States, Cynthia D Nevison, INSTAAR/University of Colorado, Boulder, CO, United States, Hanqin Tian, Boston College, Schiller Institute for Integrated Science and Society, Department of Earth and Environmental Sciences, Boston, United States and NMIP modeling group
Transportation Related Sources of Nitrous Oxide in New York City (1919672)
Raghav Dhall1, Andrew Hallward-Driemeier2, Thomas Moore3, Mira Modi4, Yuwei Zhao1 and Roisin Commane1, (1)Columbia University, New York, United States, (2)Lamont-Doherty Earth Observatory, Palisades, United States, (3)University of York, Chemistry, York, YO10, United Kingdom, (4)Barnard College, New York, United States
A Harmonized, High-Resolution Global Dataset of Crop-Specific Nitrogen Inputs from Synthetic Fertilizer and Manure (1961–2023) (1952513)
Wensu Hao1, Hanqin Tian2, Hao Shi3, Naiqing Pan4, Xing Yu4, Shufen Pan5, Francesco Nicola Tubiello6 and Feng Zhou7, (1)Boston College, Chestnut Hill, MA, United States, (2)Boston College, Schiller Institute for Integrated Science and Society, Department of Earth and Environmental Sciences, Boston, United States, (3)Auburn University, International Center for Climate and Global Change Research and School of Forestry and Wildlife Sciences, Auburn, AL, United States, (4)Boston College, Center for Earth System Science and Global Sustainability, Schiller Institute for Integrated Science and Society, Chestnut Hill, United States, (5)Auburn University, College of Forestry, Wildlife and Environment, Auburn, United States, (6)Food and Agriculture Organization of the United Nations, Rome, Italy, (7)Peking University, China, Beijing, China
Shipping Nitrogen Emissions Enhance Ocean Productivity in Nitrogen-Limited Regions: Insights from Satellite Observations (1954771)
Hai Lan, University of South Alabama, Mobile, AL, United States, Xin Zhang, University of Maryland Center for Environmental Science Appalachian Laboratory, Frostburg, United States and Victoria Coles, University of Maryland Center for Environmental Science, Horn Point Laboratory, Cambridge, United States
Mitigation of greenhouse gas emissions from dairy feed production through co-developed knowledge (1956108)
Kim Chi Vi1, David Pelster2 and Claudia Wagner-Riddle1, (1)University of Guelph, School of Environmental Sciences, Guelph, ON, Canada, (2)Agriculture and Agri-Food Canada, Science and Technology Branch, Ottawa, ON, Canada
Secondary Production of N2O From the Oxidation of Atmospheric NH3 (1956561)
Jennifer G Murphy, University of Toronto, Department of Chemistry, Toronto, ON, Canada, Sidhant Pai, MIT, Civil and Environmental Engineering, Cambridge, United States, Colette L Heald, ETH Swiss Federal Institute of Technology Zurich, Department of Environmental Systems Science, Zurich, Switzerland and sidhant pai
Drivers of Spatial Heterogeneity of Nitrous Oxide (N2O) Emissions in Agricultural Peatland Soil (1977531)
Charlotte Kwong, University of California Berkeley, Department of Environmental Science, Policy, & Management, Berkeley, United States, Tibisay Perez, University of California Berkeley, Department of Environmental Science, Policy, and Management, Berkeley, United States and Whendee L Silver, University of California Berkeley, Department of Environmental Science, Policy, and Management, Berkeley, CA, United States
