When referring to the Spectral Atlas, please cite our publication:
Keller-Rudek, H., Moortgat, G. K., Sander, R., and Sörensen,
R.: The MPI-Mainz UV/VIS spectral atlas of gaseous molecules of
atmospheric interest, Earth Syst. Sci. Data, 5, 365–373, (2013),
DOI: 10.5194/essd-5-365-2013
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| DATAFILE: | CF2Br2(Halon-1202)_Burkholder(1991)_296K_190-320nm.txt |
| NAME: | difluorodibromomethane (Halon-1202) |
| FORMULA: | CF2Br2(Halon-1202) |
| AUTHOR(YEAR): | Burkholder(1991) |
| T: | 296K |
| λ: | 190-320nm |
| BIBLIOGRAPHY: |
J.B. Burkholder, R.R. Wilson, T. Gierczak, R. Talukdar, S.A. McKeen, J.J. Orlando, G.L. Vaghjiani, and A.R. Ravishankara, "Atmospheric fate of CF3Br, CF2Br2, CF2ClBr, and CF2BrCF2Br",
J. Geophys. Res. 96(D3), 5025-5043 (1991);
DOI: 10.1029/90JD02735
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| COMMENTS: | Absorption measurements using two different spectrographs with instrumental resolutions of ∼ 0.5nm and ∼ 0.4 nm coupled to a 1024-element diode array
detector
Parameterization of the temperature dependence
ln σ(λ, T) = (∑Ai (λ–268.7998)i) (1 + (296–T) ∑Bi (λ–268.7998)i), i = 0-4,
with the following parameters Ai and Bi for the wavelength range 235–260 nm and temperature range 210–296 K.:
-----------------------------------------------------------------
i Ai Bi
-----------------------------------------------------------------
0 –44.42756 1.481886 × 10–4
1 –1.464955 × 10–1 6.77182 × 10–6
2 –5.692188 × 10–4 1.154347 × 10–7
3 1.155366 × 10–5 –2.77145 × 10–11
4 –1.399502 × 10–7 –6.619515 × 10–11
A parameterization for cross sections extrapolated out to 400 nm is
ln σ(λ, T) = (∑Ai (λ–301.0104)i) (1 + (296–T) ∑Bi (λ–301.0104)i), i = 0-4,
with the following parameters Ai and Bi:
----------------------------------------------------------------------
i Ai Bi
----------------------------------------------------------------------
0 –49.50456 3.616315×10–4
1 –1.633525 × 10–1 5.534952 × 10–6
2 5.170758 × 10–6 –1.997903 × 10–8
3 4.332654 × 10–6 –9.234512 × 10–11
4 –3.899051 × 10–8 1.776346 × 10–12
Note: In the publication of Burkholder et al., the parameterization equation erroneously is written in terms of log10(σ(λ,T)), but the correct expression should be written in terms of ln(σ(λ,T)), as given in the JPL-2015(2015) publication |
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