The Journal of Chemical Physics · 1956 · 115 citations · 9 references
Materials ScienceCarbon SequestrationAtmospheric Radiation15-Micron Co2 BandEngineeringμ BandNatural SciencesSpectroscopyGreenhouse Gas EmissionApplied PhysicsGreenhouse Gas SequestrationAbsorption SpectroscopyCarbon SinkChemistryCurve-of-growth MethodEarth ScienceAbsorption CoefficientQ Branch
The intensity of the 15 μ band of CO2 has been redetermined by a curve-of-growth method, utilizing simple formulas derived for the absorption coefficient of the Q branch. The value obtained is 240 cm—1 per cm at S.T.P., some 25 to 30% higher than the results of the Wilson-Wells method. Extrapolation methods in general can lead to considerable underestimation of intensity, especially when applied to bands containing narrow Q branches. The nitrogen-broadened half-width at one atmosphere and 298K is 0.064 cm—1.
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