Journal Article

PreJuSER-7701

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Relative importance of ozone energy transfer processes in the middle and upper atmosphere

Fernandez, R. P. ; Kaufmann, M.FZJ* ; Toselli, B. M.

2009
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.jastp.2009.03.004

Abstract: The relative importance of different processes and transitions in the appearance of non-LTE populations for the fundamental levels of ozone was studied by quantifying the kinetic law of every process and transition that affect each level population. The vibrational temperatures and the relative contribution of every transition are presented as a function of altitude. The results show that the appearance of non-LTE Populations for the fundamental levels is not produced by a direct imbalance between absorption and emission but as a consequence of imbalanced collisional transitions provoked by the overpopulation of O-3(0 nu(2) 0) levels. This fact confirms that the relaxation cascade drives through the bending mode nu(2). (C) 2009 Elsevier Ltd. All rights reserved.

Keyword(s): J ; Vibrational energy transfer (auto) ; Non-LTE (auto) ; Ozone vibrational temperatures (auto) ; Collisional VT rate constants (auto)

Note: The authors would like to thank CONICET and SeCyT (UNC) for partial support for this work and B. Funke for fruitful discussions. R.P Fernandez thanks CONICET for a graduate fellowship and DAAD for a research fellowship at Juelich Research Center, Germany. B.M. Toselli thanks Prof. John Barker for providing the original version of the SSH code and for helpful discussions. We also thank an anonymous reviewer for his/her corrections, suggestions and constructive comments.

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Research Program(s):

1. Atmosphäre und Klima (P22)

Appears in the scientific report 2009

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