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Isotopic fractionation of stratospheric nitrous oxide

Yung, Yuk L. and Miller, Charles E. (1997) Isotopic fractionation of stratospheric nitrous oxide. Science, 278 (5344). pp. 1778-1780. ISSN 0036-8075. doi:10.1126/science.278.5344.1778.

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We propose an isotopic fractionation mechanism, based on photolytic destruction, to explain the ^(15)N/^(14)N and ^(18)O/^(16)O fractionation of stratospheric nitrous oxide (N_2O) and reconcile laboratory experiments with atmospheric observations. The theory predicts that (i) the isotopomers ^(15)N^(14)N^(16)O and ^(14)N^(15)N^(16)O have very different isotopic fractionations in the stratosphere, and (ii) laboratory photolysis experiments conducted at 205 nanometers should better simulate the observed isotopic fractionation of stratospheric N_2O. Modeling results indicate that there is no compelling reason to invoke a significant chemical source of N_2O in the middle atmosphere and that individual N_2O isotopomers might be useful tracers of stratospheric air parcel motion.

Item Type:Article
Related URLs:
URLURL TypeDescription DOIArticle
Yung, Yuk L.0000-0002-4263-2562
Miller, Charles E.0000-0002-9380-4838
Additional Information:© 1997 American Association for the Advancement of Science Received 11 August 1997; accepted 9 October 1997. We thank K. Boering, H. Craig, W. DeMore, R. Friedl, Y. Jiang, J. Kaye, T. Rahn, S. Sander, M. Thiemens, and M. Wahlen for valuable discussions and inputs. C.E.M. thanks the National Research Council for a NASA Jet Propulsion Laboratory Research Associateship. This research was supported in part by NASA grant NAG1-1806 to the California Institute of Technology.
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National Research CouncilUNSPECIFIED
Issue or Number:5344
Record Number:CaltechAUTHORS:20140723-110519108
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Official Citation:Isotopic Fractionation of Stratospheric Nitrous Oxide Yuk L. Yung and Charles E. Miller Science, New Series, Vol. 278, No. 5344 (Dec. 5, 1997), pp. 1778-1780 Published by: American Association for the Advancement of Science Article Stable URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:47425
Deposited By: Tony Diaz
Deposited On:23 Jul 2014 18:17
Last Modified:10 Nov 2021 17:39

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