Ozone spectroscopy in the electronic ground state: High-resolution spectra analyses and update of line parameters since 2003

•Recent analyses of ozone spectra include comparison of calculations and observations.•The analyses also include critical discussion of updated line parameters.•They also include related issues for accuracy, dark states and assignments.•They also include newly derived band centres versus theoretical predictions.

The state of the art analyses of high-resolution ozone spectra and a critical discussion of line parameters updated since the previous review by Rinsland et al. [J Quant Spectrosc Radiat Transfer 2003;82:207-18] are presented. We focus on recent works revisiting improved measurements and analyses of Fourier transform spectra below 5600 cm−1 and review Cavity Ring-Down Spectroscopy measurements and analyses in the 5850-7920 cm−1 spectral region which have been performed for 16O3 and all 18O enriched ozone isotopologues. Various issues related to resonance perturbations due to dark states are discussed as well as the issues concerning the accuracy of the experimental parameters, the data modelling and the data reduction. Comparisons of vibration levels determined from spectra analyses with predictions from the molecular potential functions are given. The procedures of empirical corrections for calculated line lists are described and the “intricate” question of absolute intensity determination is overviewed. Also, a review of deficiencies, challenge for improvements, and related works in progress are reported.