Measurements of air-broadened and nitrogen-broadened half-widths and shifts of ozone lines near 9 μm

Temperature dependence of nitrogen and oxygen-broadening of the16O3υ1band

“…[4] and [5], we obtain the following statistics for the average ratio: For the lines common with Smith et al [4] and with Wagner et al [5], our measured N 2 broadened halfwidths are in a very good agreement: the difference between our measured values and the previous studies is respectively about 1.2% and 1.9% with a root mean square difference (r.m.s.) of about 4%.…”

“…If we compared our results with previous studies [4][5][6][7][8][9][10][11][12][13][14][15] we can observe a small increasing n value for N 2 and O 2 temperature dependence about 5 to 10% between pure rotational region and millimetre wave. Nevertheless the scatter and uncertainties of the temperature dependence in the literature don't permit to conclude at a significantly increasing.…”

“…The measurements of lines broadening by N 2 and O 2 at room temperature are reported in Tables 2 and 3. Our results are compared with the values given in Ref. [4] and the values deduced from the polynomial coefficient given in Table 11 of Ref. [5].…”

“…[5]. Smith et al [4] Wagner et al [5] This work Broadening parameter (10 -3 cm -1 atm -1 )O 3 -N 2 J(J+1)+Ka-Kc+1 g 0 Figure 2. Comparison with other measurements of lines broadening by N 2 for the 16 O 3 1 band at room temperature.…”

Calculations of ozone line shifting induced by N2and O2pressure

“…A few measurements were made by Smith et al [1][2][3][4], Barbe et al [5,6] and Sokabe et al [7] and only QFT (Quantum Fourier Transform) and ATC (AndersonTsao-Curnutte) calculations were realized by Gamache and co-workers [8,9] for N 2 , O 2 and airbroadening. Recently, the complex-valued version of the Robert-Bonamy formalism was employed by Drouin et al [10] to estimate line shifts induced by the same perturbers in the rotational band of O 3 ; no experimental data were reported however for comparison because of their too small values.…”