Heating of the middle atmosphere as a result of quenching of the products of O2 and O3 photodissociation

Valentine A. Yankovsky; Rada O. Manuilova; Veronica A. Kuleshova

doi:10.1117/12.606261

15 December 2004 Heating of the middle atmosphere as a result of quenching of the products of O₂ and O₃ photodissociation

Valentine A. Yankovsky, Rada O. Manuilova, Veronica A. Kuleshova

Author Affiliations +

Proceedings Volume 5743, Eleventh International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics; (2004) https://doi.org/10.1117/12.606261
Event: Eleventh International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, 2004, Tomsk, Russian Federation

Abstract

The main product of O₂ photodissociation in Schumann - Runge continuum and in Ly α line and also O₃ photolysis in Hartley band is the excited atom of oxygen O(¹D). Electronic energy of this metastable level is redistributed at collisional and radiative processes in various channels. The suggested by us modern photochemical model of O₂ and O₃ photodissociation in the middle atmosphere includes in consideration transfer of electronic energy of atoms O(¹D) to electronic-vibrationally excited molecules O₂(b¹Σ⁺_g, v≤1) with the subsequent transfer of energy to the molecules O₂(a¹▵_g, v≤3). Except for it, we took into account formation of the molecules O₂(a¹▵_g, v≤5) in the ozone photolysis. The energy of O₂(a¹▵_g, v≤5) is transferred to the molecules O₂(a¹▵_g, v=0) and further to the O₂(X³Σ^-_g, v). At all stages of energy transformation the radiative and collisional losses of energy are possible thus the part of energy thermalizes. The obtained results essentially differ from the previous model of energy transfer, in which the kinetics of electronic-vibrationally excited oxygen molecules were not considered.

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Valentine A. Yankovsky, Rada O. Manuilova, and Veronica A. Kuleshova "Heating of the middle atmosphere as a result of quenching of the products of O₂ and O₃ photodissociation", Proc. SPIE 5743, Eleventh International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, (15 December 2004); https://doi.org/10.1117/12.606261

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