Long-term trend of CH₄ at northern mid-latitudes: Comparison between ground-based infrared solar and surface sampling measurements

Rinsland, C. P., Goldman, A., Elkins, J. W., Chiou, L. S., Hannigan, J., Wood, S. W., … Zander, R. (2006). Long-term trend of CH₄ at northern mid-latitudes: Comparison between ground-based infrared solar and surface sampling measurements. Journal Of Quantitative Spectroscopy &Amp; Radiative Transfer, 97, 457-466. doi:10.1016/j.jqsrt.2005.07.002

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