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Article Dans Une Revue Journal of Quantitative Spectroscopy and Radiative Transfer Année : 2011

Near-infrared radiative transfer modelling with different CH4 spectroscopic databases to retrieve atmospheric methane total amount

Résumé

Atmospheric methane content can be retrieved from measurements of solar radiation attenuated by the atmosphere in the near infrared spectral region where the space-borne and ground-based spectrometers carry out regular measurements. It is shown, in the present work, that the different spectroscopic databases can give significantly different results for both forward simulations of the atmospheric transmittance and the inverse problem solution to retrieve the CH4 total content in the atmosphere using spectra measured by ground-based FTIR spectrometer in the near infrared spectral region. These discrepancies and the problem of the reduction of their influence on the atmospheric radiation transfer calculations are discussed. A comparison of atmospheric ground-based measured and simulated spectra, modelled with different CH4 databases, is presented.

Dates et versions

hal-01025469 , version 1 (17-07-2014)

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Citer

Tatiana Chesnokova, V. Boudon, Tony Gabard, K. G. Gribanov, K. Firsov, et al.. Near-infrared radiative transfer modelling with different CH4 spectroscopic databases to retrieve atmospheric methane total amount. Journal of Quantitative Spectroscopy and Radiative Transfer, 2011, 112 (17), pp.2676-2682. ⟨10.1016/j.jqsrt.2011.08.005⟩. ⟨hal-01025469⟩
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