Photodissociation of metastable O2(a 1 Delta g): Implications for stratospheric O3

Details Photodissociation of metastable O2(a 1 Delta g): Implications for stratospheric O3 Photodissociation of metastable O2(a 1 Delta g): Implications for stratospheric O3

Jul 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986georl..13..660d&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 13, July 1986, p. 660-663.

Physics

3

Atmospheric Chemistry, Ozone, Photodissociation, Stratosphere, Franck-Condon Principle, Metastable State, Potential Energy, Wave Equations

Scientific paper

The potential energy curves of Saxon and Liu (1977) are used to calculate nuclear radial wave functions for O2 in the a 1 Delta g and C 3 Delta u states. Franck-Condon factors are evaluated for both bound-bound and bound-free transitions. Observational values for the radiative lifetimes of discrete vibrational levels of the C 3 Delta u state are used to place constraints on the cross section for photodissociaation of a 1 Delta g. It is argued that the cross section for the dissociation of O2(a 1 Delta g) through the C 3 Delta u state is smaller by four orders of magnitude than values required by Frederick and Cicerone (1985) to resolve the apparent discrepancy between computed and measured concentrations for O3 in the upper atmosphere.

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