Affiliation:
1. Department of Earth System Science, University of California, Irvine, CA 92697–3100, USA.
Abstract
Lingering Atmospheric Perturbations
Nitrous oxide and methane are chemically active greenhouse gases whose atmospheric abundances are greatly influenced by anthropogenic emissions.
Prather and Hsu
(p.
952
) used an atmospheric chemistry model to show how nitrous oxide emissions lower the concentration of tropospheric methane through a chain of chemical reactions that include stratospheric ozone depletion, changes in solar ultraviolet radiation fluxes, altered fluxes of ozone transport from the stratosphere to the troposphere, and increases in the amount of tropospheric hydroxyl radicals. This mechanism acts on a 108-year-long time scale—10 times longer than the atmospheric residence time of methane.
Publisher
American Association for the Advancement of Science (AAAS)
Reference21 articles.
1. Characterizing the tropospheric ozone response to methane emission controls and the benefits to climate and air quality
2. M. Prather et al . in Climate Change 2001: The Scientific Basis. Third Assessment Report of the Intergovernmental Panel on Climate Change J. T. Houghton et al . Eds. (Cambridge Univ. Press Cambridge 2001) pp. 239–287.
3. Nitrous Oxide: A Natural Source of Stratospheric NO
4. World Meteorological Organization (WMO) Atmospheric Ozone 1985: Assessment of Our Understanding of the Processes Controlling Its Present Distribution and Change R. T. Watson et al. Eds. (Global Ozone Research and Monitoring Project Report No. 16 WMO Geneva 1985).
5. Global long-lived chemical modes excited in a 3-D chemistry transport model: Stratospheric N2O, NOy, O3and CH4chemistry
Cited by
68 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献