Concentration of methane in the troposphere deduced from 1951 infrared solar spectra

Details Concentration of methane in the troposphere deduced from 1951 infrared solar spectra Concentration of methane in the troposphere deduced from 1951 infrared solar spectra

Nov 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985natur.318..245r&link_type=abstract

Nature (ISSN 0028-0836), vol. 318, Nov. 21, 1985, p. 245-249.

Computer Science

43

Atmospheric Composition, Infrared Spectra, Methane, Solar Spectra, Spectrum Analysis, Troposphere, Absorption Spectra, Air Pollution, Atmospheric Chemistry, Climate, Gas Chromatography, Photochemical Reactions

Scientific paper

The 1-2 percent increase in tropospheric methane determined from gas chromatographic measurements since 1977 has important implications for atmospheric photochemistry and climate. To extend the measurement baseline, solar absorption spectra have been analyzed and mean troposphere CH4 mixing ratios for the years 1951 and 1981, and an average rate of CH4 increase of 1.1 + or - 0.2 percent per year is found for this period.

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