CHARACTERIZATION OF LINE BROADENING AND SHIFT PARAMETERS OF OZONE FOR SPECTROSCOPIC DATABASES

$^{a}$J.-U. Flaud, C. Camy-Peyret, C. P. Rinsland, V. Malathy Devi, M. A. H. Smith and A. Goldman, Appl. Opt. 29, 3667-3671 (1990). $^{b}$M. A. H. Smith, C. P. Rinsland and V. Malathy Devi, J. Mol. Spectrosc. 147, 142-154 (1991). $^{c}$M. A. H. Smith, V. Malathy Devi, D. C. Benner and C. P. Rinsland, J. Mol. Spectrosc. 182, 239-259 (1997). $^{d}$V. Malathy Devi, D. C. Benner, M. A. H. Smith and C. P. Rinsland, J. Mol. Spectrosc. 182, 221-238 (1997).Author Institution: NASA Langley Research CenterPrior to 1997, most reported measurements of ozone line broadening and shift parameters involved the stronger transitions with $0 \leq K^{\prime\prime}_{a}\leq 4$. The broadening coefficients for this narrow range of $K^{\prime\prime}_{a}$ could be empirically modeled within the uncertainty of the measurements by polynomials in ${J^{\prime\prime}}^{ab}$. This allowed the prediction of broadening coefficients for transitions that had not been measured in the laboratory or calculated with detailed molecular interaction models. However, more extensive measurements involving higher $K^{\prime\prime}_{a}$ transitions in the $\nu_{1}$ and $\nu_{2}$ $bands^{cd}$ show that polynomials in $J^{\prime\prime}$ do not adequately reproduce the measured broadening coefficients for the entire range of observed $K^{\prime\prime}_{a}$. This paper reports a set of polynomials in $J^{\prime\prime}$ and $K^{\prime\prime}_{a}$ each valid for a specific range of $K^{\prime\prime}_{a}$ values, that reproduce most published measured air- and self-broadening coefficients of $O_{3}$ within their experimental uncertainties. Dependence of air-induced line shift coefficients on the vibrational and rotational quantum numbers will also be examined