Infrared high resolution spectra of ozone O-16(3) have been recorded in the 10 and 5 mu m spectral ranges in order to derive their absolute intensities with a best achievable accuracy. Spectra have been recorded with the home made stepping mode FTS of GSMA (Reims). In the two spectral regions, we use UV-IR crossed beam cell. The quantification of ozone is achieved using UV cross section at 253.65 nm. A check of this UV calibration is also performed using direct pressure measurements of quasi-pure samples of O-3. The intensities are derived from infrared spectra using multifit procedure already tested. In the 10 mu m range, where 12 different spectra have been recorded, 65 well selected lines led to a good agreement (better than 0.3) with the HITRAN 2008 (or 2004) values, confirming our previous work De Backer-Barilly MR, Barbe A. Absolute intensities of the 10 mu m bands of O-16(3). J Mol Spectrosc 305:2001;43-53. In the 5 mu m range, where 18 transitions are selected, we also note a correct agreement with HITRAN 2008, despite a slightly larger averaged value between (1.9) experimental and theoretical (HITRAN). As conclusion, authors suggest the use of current HITRAN 2008 data for atmospheric retrievals.
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