The earlier recommendations for the absorption cross sections (JPL.2002, JPL-2006, JPL-2010) habe been adopted

170-172 nm, data of

C. Hubrich, C. Zetzsch, and F. Stuhl, "Absorptionsspektren von halogenierten Methanen im Bereich von 275 bis 160 nm bei Temperaturen von 298 und 208 K," Ber. Bunsenges. Phys. Chem. 81, 437-442 (1977); DOI: 10.1002/bbpc.19770810417,

174-178 nm, mean of the data of

C. Hubrich, C. Zetzsch, and F. Stuhl, "Absorptionsspektren von halogenierten Methanen im Bereich von 275 bis 160 nm bei Temperaturen von 298 und 208 K," Ber. Bunsenges. Phys. Chem. 81, 437-442 (1977); DOI: 10.1002/bbpc.19770810417, and

P.C. Simon, D. Gillotay, N. Vanlaethem-Meurée, and J. Wisemberg, "Ultraviolet absorption cross-sections of chloro- and chlorofluoro-methanes at stratospheric temperatures," J. Atmos. Chem. 7, 107-135 (1988); DOI: 10.1007/BF00048042; Aeronomica Acta A 324, 1-55 (1988),

180-198 nm, data of

P.C. Simon, D. Gillotay, N. Vanlaethem-Meurée, and J. Wisemberg, "Ultraviolet absorption cross-sections of chloro- and chlorofluoro-methanes at stratospheric temperatures," J. Atmos. Chem. 7, 107-135 (1988); DOI: 10.1007/BF00048042; Aeronomica Acta A 324, 1-55 (1988),

200-230 nm, mean of the data of

P.C. Simon, D. Gillotay, N. Vanlaethem-Meurée, and J. Wisemberg, "Ultraviolet absorption cross-sections of chloro- and chlorofluoro-methanes at stratospheric temperatures," J. Atmos. Chem. 7, 107-135 (1988); DOI: 10.1007/BF00048042; Aeronomica Acta A 324, 1-55 (1988), and

M.F. Mérienne, B. Coquart, and A. Jenouvrier, "Temperature effect on the ultraviolet absorption of CFCl₃, CF₂Cl₂, and N₂O," Planet. Space Sci. 38, 617-625 (1990); DOI: 10.1016/0032-0633(90)90067-Z,

232-240 nm, extrapolation of the Mérienne et al. (1990) data,
log σ(λ) = 2.1448–0.1061 λ

The parameterization of the temperature dependence (220-296 K, 200-231 nm) using an empirical polynomial expansion:

ln σ(λ, T) = ∑a_n (λ–200)ⁿ + (T–296) × ∑b_n(λ–200)ⁿ, n = 0-3

with the following parameters a_n and b_n:

a₀ = –43.8954569    b₀ = 4.8438 × 10^–3
a₁ = –2.403597 × 10^–1  b₁ = 4.96145 × 10^–4
a₃ = –4.2619 × 10^–4   b₂ = –5.6953 × 10^–6
a₃ = 9.8743 × 10^–6

given by Mérienne et al. (1990) is recommended