Effects of the inclusion of the bending-to-stretching transitions in the non-LTE modeling of ozone vibrational temperatures

RAFAEL P. FERNÁNDEZ; MARTIN KAUFMANN; BEATRIZ M. TOSELLI

PERGAMON-ELSEVIER SCIENCE LTD

Año: 2010 vol. 72 p. 890 - 890

A descriptionofthenon-LTEintramolecularozonerelaxationcascadeconsideringtherelativeimportanceofdifferenttransitionsontheO3(v1v2v3) vibrationallevelshasbeenstudiedbyquantifyingthe kineticlawofeveryprocessandtransitionthataffecteachlevelpopulation.Theanalysisconsidersthe inclusionforthefirst-timeofbending-to-stretching(k2D) transitionsintheenergyrelaxationcascade ofozoneafteritisformedbythree-bodyrecombination.Inthisway,thevibrationaltemperaturesandtherelativecontributionofeverytransitionarepresentedasafunctionofaltitude.The resultsshowthattheinclusionofthebending-to-stretchingtransitionsintheO3 non-LTErelaxationschemedecreasesthe n2-modeoverpopulationandthereforethestretchinglevels’populationincreases,asrequiredforacorrectradiancesimulationofthe4.8 mm ozoneemissioninthe upperatmosphere.