Trends and seasonal cycles in the isotopic composition of nitrous oxide since 1940

• Main Authors: S. Park, P. Croteau, K. A. Boering, D. M. Etheridge, D. Ferretti, P. J. Fraser, K-r. Kim, P. B. Krummel, R. L. Langenfelds, T. D. Van Ommen, L. P. Steele, C. M. Trudinger
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 2012
• Subjects: Grim; Antarc*; Antarctica
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.360.9954; http://www.nature.com/ngeo/journal/v5/n4/pdf/ngeo1421.pdf

The atmospheric nitrous oxide mixing ratio has increased by 20 % since 1750 (ref. 1). Given that nitrous oxide is both a long-lived greenhouse gas2 and a stratospheric ozonedepleting substance3, this increase is of global concern. However, the magnitude and geographic distribution of nitrous oxide s...