On the role of vibrationally excited H2 as a source of OH in the mesosphere

Details On the role of vibrationally excited H2 as a source of OH in the mesosphere On the role of vibrationally excited H2 as a source of OH in the mesosphere

Feb 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3104106b&link_type=abstract

Geophysical Research Letters, Volume 31, Issue 4, CiteID L04106

Physics

5

Atmospheric Composition And Structure: Airglow And Aurora, Atmospheric Composition And Structure: Chemical Kinetic And Photochemical Properties, Atmospheric Composition And Structure: Middle Atmosphere-Composition And Chemistry, Atmospheric Composition And Structure: Middle Atmosphere-Constituent Transport And Chemistry (3334), Atmospheric Composition And Structure: Middle Atmosphere-Energy Deposition

Scientific paper

It has recently been suggested that the reaction between vibrationally excited H2(v = 1) and O(3P) atoms may be an important source of OH in the upper mesosphere. Here, we report accurate quantum calculations of rate coefficients for the O(3P) + H2(v = 1) reaction and show that the proposed mechanism is not an important source of OH in the mesosphere. Our calculation employs chemically accurate potential energy surfaces for the O + H2 system and quantum mechanical method for the calculation of the relevant cross sections and rate coefficients.

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