B14A:
Closing the Global Nitrous Oxide Budget: Magnitude, Spatiotemporal Patterns, and Responses II


Session ID#: 9157

Session Description:
Atmospheric mixing ratios of nitrous oxide (N2O) substantially increased since the preindustrial era. Understanding the sources and magnitude of N2O as well as their historical responses to natural and anthropogenic driving forces is the key to effectively mitigate N2O emissions and climate change. This session aims at bringing together studies quantifying and predicting N2O emissions through the analysis of existing emissions inventories, empirical/statistical modeling, atmospheric inverse modeling and process-based ecosystem modeling. The objective of the session is to better constrain global and regional N2O budgets, understand the underlying mechanisms of spatiotemporal variations, and evaluate potential mitigation practices. Abstracts using observations and modeling at multiple spatial and temporal scales are invited.
Primary Conveners:  Hanqin Tian, Auburn University, Auburn, AL, United States
Conveners:  Chaoqun Lu, Iowa Sate University, Ames, IA, United States, Eri Saikawa, Emory University, Atlanta, GA, United States and Akihiko Ito, NIES National Institute of Environmental Studies, Ibaraki, Japan
Chairs:  Hanqin Tian, Auburn University, Auburn, AL, United States and Eri Saikawa, Emory University, Atlanta, GA, United States
OSPA Liaisons:  Chaoqun Lu, Iowa Sate University, Ames, IA, United States

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

0315 Biosphere/atmosphere interactions [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0469 Nitrogen cycling [BIOGEOSCIENCES]
0490 Trace gases [BIOGEOSCIENCES]

Abstracts Submitted to this Session:

A R Ravishankara, Colorado State University, Fort Collins, CO, United States
Eric A Davidson1, Kathleen E Savage2 and Debjani Sihi1, (1)University of Maryland Center (UMCES) for Environmental Science, Frostburg, MD, United States, (2)Woods Hole Research Center, Falmouth, MA, United States
Andrew R Babbin1,2, Bess B Ward2 and Roman Stocker3,4, (1)Massachusetts Institute of Technology, Civil and Environmental Engineering, Cambridge, MA, United States, (2)Princeton University, Geosciences, Princeton, NJ, United States, (3)ETH Zurich, Zurich, Switzerland, (4)Massachusetts Institute of Technology, Cambridge, MA, United States
Rona Thompson, Norwegian Institute for Air Research, Kjeller, Norway, Frédéric Chevallier, LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France, Soenke Zaehle, Max Planck Institute for Biogeochemistry, Jena, Germany and Edward J Dlugokencky, NOAA, Earth System Research Laboratory, Boulder, CO, United States
Brad David Hall1, Edward J Dlugokencky2, Geoffrey S Dutton3, Jon David Nance3, Andrew M Crotwell4, Debra Jean Mondeel5 and James W Elkins1, (1)NOAA/ESRL GMD, Boulder, CO, United States, (2)NOAA Boulder, Boulder, CO, United States, (3)Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, (4)NOAA, Boulder, CO, United States, (5)US Dept Commerce, Boulder, CO, United States
Chaoqun Lu1,2, Hanqin Tian2, Jia Yang2, Bowen Zhang2 and Rongting Xu3, (1)Iowa Sate University, Ames, IA, United States, (2)Auburn University, Auburn, AL, United States, (3)Auburn University, International Center for Climate and Global Change Research and School of Forestry and Wildlife Sciences, Auburn, AL, United States
Kazuya Nishina, Akihiko Ito and Seiji Hayashi, NIES National Institute of Environmental Studies, Ibaraki, Japan
Katharina Hildegard Elisabeth Meurer1, Uwe Franko2, Oliver Spott2, Claus F. Stange3 and Hermann F. Jungkunst4,5, (1)University of Göttingen, Göttingen, Germany, (2)Helmholtz Centre for Environmental Research, Soil Physics, Halle (Saale), Germany, (3)Federal Institute for Geosciences and Natural Resources, Hannover, Germany, (4)University of Koblenz-Landau, Environemtnal Sciences, Landau (Pfalz), Germany, (5)University of Koblenz-Landau, Environmental Sciences, Landau (Pfalz), Germany

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