Figure 8. Comparison of temperature dependencies for pure water vapour continuum absorption in mm-wave and mid-IR spectral ranges. Experimental data for 190 and 239 GHz are from  and , respectively; CO2 laser absorptions are from [69,70]. Solid lines show the result of calculations using formula (2a) and universal parameters n=1.63 and Do=1700 K. The data for infrared continuum (right axis) are shown in arbitrary units. The Figure is adopted from .
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