Production of O(¹D) from photolysis of O 3 | Zendy

Michelsen H. A. | Zendy; Salawitch R. J. | Zendy; Wennberg P. O. | Zendy; Anderson J. G. | Zendy

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Production of O(¹D) from photolysis of O 3

Author(s) -

Michelsen H. A.,

Salawitch R. J.,

Wennberg P. O.,

Anderson J. G.

Publication year - 1994

Publication title -

geophysical research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.007

H-Index - 273

eISSN - 1944-8007

pISSN - 0094-8276

DOI - 10.1029/94gl02052

Subject(s) - stratosphere , photodissociation , quantum yield , wavelength , excited state , troposphere , yield (engineering) , ozone , absorption (acoustics) , analytical chemistry (journal) , atmospheric chemistry , materials science , physics , atomic physics , atmospheric sciences , chemistry , photochemistry , optics , meteorology , fluorescence , environmental chemistry , thermodynamics

We have used a model accounting for absorption by vibrationally and rotationally excited ozone (O 3 ) to examine published measurements of the quantum yield of O(¹D) and O 2 (¹Δ g ) from O 3 photolysis in the Huggins band (305–325 nm). We conclude that the quantum yield of O(¹D) is 0.2–0.3 for wavelengths between 312 and 320 nm at 298 K; in contrast, the JPL recommended quantum yield of O(¹D) is negligible in this wavelength region. We present a compilation of our results at temperatures and wavelengths relevant to atmospheric calculations. Production of O(¹D) from excited O 3 increases calculated concentrations of O(¹D) by up to 40% and OH by 15% for the troposphere and lower stratosphere.

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