This Is AuburnAUrora

Show simple item record

Regional sources of nitrous oxide over the United States: Seasonal variation and spatial distribution

Metadata FieldValueLanguage
dc.contributorHanqin Tian, tianhan@auburn.eduen_US
dc.creatorMiller, S.M.
dc.creatorKort, E. A.
dc.creatorHirsch, A. I.
dc.creatorDlugokencky, E. J.
dc.creatorAndrews, A. E.
dc.creatorXu, X
dc.creatorTian, H
dc.creatorNehrkorn, T.
dc.creatorEluszkiewicz, J.
dc.creatorMichalak, A.M.
dc.creatorWofsy, S. C.
dc.description.abstracthis paper presents top-down constraints on the magnitude, spatial distribution, andseasonality of nitrous oxide (N2O) emissions over the central United States. We analyzedata from tall towers in 2004 and 2008 using a high resolution Lagrangian particledispersion model paired with both geostatistical and Bayesian inversions. Our resultsindicate peak N2O emissions in June with a strong seasonal cycle. The spatial distribution ofsources closely mirrors data on fertilizer application with particularly large N2O sourcesover the US Cornbelt. Existing inventories for N2O predict emissions that differsubstantially from the inverse model results in both seasonal cycle and magnitude. Weestimate a total annual N2O budget over the central US of 0.9–1.2 TgN/yr and anextrapolated budget for the entire US and Canada of 2.1–2.6 TgN/yr. By this estimate, theUS and Canada account for 12–15% of the total global N2O source or 32–39% of the globalanthropogenic source as reported by the Intergovernmental Panel on Climate Change in2007en_US
dc.publisherAGU Publicationsen_US
dc.relation.ispartofJournal of Geophysical Research-Atmospheresen_US
dc.rights©The Authors 2012. ©American Geophysical Union 2012. This is this the version of record co-published by the American Geophysical Union and John Wiley & Sons, Inc. It is made available under the CC-BY-NC-ND 4.0 license. Item should be cited as: Miller, S. M., Kort, E. A., Hirsch, A. I., Dlugokencky, E. J., Andrews, A. E., Xu, X., ... & Wofsy, S. C. (2012). Regional sources of nitrous oxide over the United States: Seasonal variation and spatial distribution. Journal of Geophysical Research: Atmospheres, 117(D6).en_US
dc.subjectSTILT agriculture emissions inverse modeling nitrous oxideen_US
dc.titleRegional sources of nitrous oxide over the United States: Seasonal variation and spatial distributionen_US
dc.type.genreJournal Article, Academic Journalen_US

Files in this item

This item appears in the following Collection(s)

Show simple item record