Ultra-violet absorption cross sections of isotopically substituted nitrous oxide species: 14N14NO, 15N14NO, 14N15NO and 15N15NO

The isotopically substituted nitrous oxide species 14N14NO, 15N14NO, 14N15NO and 15N15NO were investigated by ultra-violet (UV) absorption spectroscopy. High precision cross sections were obtained for the wavelength range 181 to 218nm at temperatures of 233 and 283K. These data are used to calculate...

Full description

Saved in:
Bibliographic Details
Published in:Atmospheric chemistry and physics 2004-08, Vol.4 (5), p.1237-1253
Main Authors: von Hessberg, P., Kaiser, J., Enghoff, M. B., Mclinden, C. A., Sorensen, S. L., Röckmann, T., Johnson, M. S.
Format: Article
Language:English
Subjects:
Ocean, Atmosphere
Sciences of the Universe
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The isotopically substituted nitrous oxide species 14N14NO, 15N14NO, 14N15NO and 15N15NO were investigated by ultra-violet (UV) absorption spectroscopy. High precision cross sections were obtained for the wavelength range 181 to 218nm at temperatures of 233 and 283K. These data are used to calculate photolytic isotopic fractionation constants as a function of wavelength. The fractionation constants were used in a three-dimensional chemical transport model in order to simulate the actual fractionation of N2O in the stratosphere, and the results were found to be in good agreement with field studies.
ISSN:1680-7316
1680-7324