Articles | Volume 21, issue 2
https://doi.org/10.5194/acp-21-951-2021
https://doi.org/10.5194/acp-21-951-2021
Research article
 | 
25 Jan 2021
Research article |  | 25 Jan 2021

Aircraft-based inversions quantify the importance of wetlands and livestock for Upper Midwest methane emissions

Xueying Yu, Dylan B. Millet, Kelley C. Wells, Daven K. Henze, Hansen Cao, Timothy J. Griffis, Eric A. Kort, Genevieve Plant, Malte J. Deventer, Randall K. Kolka, D. Tyler Roman, Kenneth J. Davis, Ankur R. Desai, Bianca C. Baier, Kathryn McKain, Alan C. Czarnetzki, and A. Anthony Bloom

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Cited articles

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AMERIFLUX: US-KCM, KCMP Tall Tower, available at: https://ameriflux.lbl.gov/sites/siteinfo/US-KCM, last access: 18 June 2018. 
Amon, B., Kryvoruchko, V., Amon, T., and Zechmeister-Boltenstern, S.: Methane, nitrous oxide and ammonia emissions during storage and after application of dairy cattle slurry and influence of slurry treatment, Agr. Ecosyst. Environ., 112, 153–162, https://doi.org/10.1016/j.agee.2005.08.030, 2006. 
Andrews, A., Kofler, J., Trudeau, M. E., Bakwin, P. S., Fisher, M. L., Sweeney, C., Desai, A. R., and ESRL: Earth System Research Laboratory Carbon Cycle and Greenhouse Gases Group Continuous Measurements of CO2, CO, and CH4 from Tall Towers, 1992–Present, Version 1 [LEF tall tower measurements], NOAA National Centers for Environmental Information, https://doi.org/10.7289/V57W69F2, 2017. 
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Short summary
Methane concentrations have doubled since 1750. The US Upper Midwest is a key region contributing to such trends, but sources are poorly understood. We collected and analyzed aircraft data to resolve spatial and timing biases in wetland and livestock emission estimates and uncover errors in inventory treatment of manure management. We highlight the importance of intensive agriculture for the regional and US methane budgets and the potential for methane mitigation through improved management.
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