Fig. 2

Comparison between different methods to model the Rayleigh scattering in the SNIFS wavelength range from Hansen & Travis (1974) (blue), Hayes & Latham (1975) (yellow), Froehlich & Shaw (1980) (green) and Bucholtz (1995) (red). The comparison is made for the mean pressure at the Mauna Kea summit (616 mbar). The discrepancies between the different models are less than 1.5% over the wavelength range considered in this paper.
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