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: | CH2O_MellerMoortgat(2000)_223K_250-353nm(int-c).txt |
| NAME: | formaldehyde, methanal |
| FORMULA: | CH2O |
| AUTHOR(YEAR): | MellerMoortgat(2000) |
| T: | 223K |
| λ: | 250-353nm(int-c) |
| BIBLIOGRAPHY: |
R. Meller and G.K. Moortgat, "Temperature dependence of the absorption cross sections of formaldehyde between 223 and 323 K in the wavelength range 225-375 nm",
J. Geophys. Res. 105(D6), 7089-7101 (2000);
DOI: 10.1029/1999JD901074
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| COMMENTS: | High-resolution spectrum: Spectral resolution in single measurements varied between 0.028 nm at 230 nm and 0.021 nm at 360 nm; in the final spectrum over the entire wavelength range the resolution is somewhat lower (∼0.04 nm) due to later data handling and manipulation 250-353nm(int-c), i.e., averaging of the high-resolution data over the spectral intervals of 500 cm-1 and 5 nm used in atmospheric modelling calculations; intervals No. 80-103: 250.0-253.2, 253.2-256.4,....., 307.7-312.5, 312.5-317.5, ....., 347.5-352.5 nm; first column: center of interval Empirical fit of the temperature dependence (223-323 K): σ(λ, T) = σ(298 K) + Γ × (T - 298 K) with the temperature coefficients ----------------------------------------
λ 1024 Γ
(nm) (cm2 molec.-1 K-1)
----------------------------------------
251.6 0.720
254.8 1.77
258.1 5.35
261.4 1.45
264.9 5.00
268.5 2.80
272.1 3.87
275.9 -5.73
279.7 -3.60
283.7 -22.3
287.7 -7.47
292.0 -34.9
296.3 5.73
300.8 2.80
305.4 -1.73
310.1 -5.47
315.0 8.40
320.0 8.13
325.0 3.87
330.0 10.5
335.0 1.71
340.0 15.2
345.0 0.480
350.0 -3.40
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