title: Spectroscopic detection of stratospheric hydrogen cyanide.
abstract: A number of features have been identified as absorption lines of hydrogen cyanide in infrared spectra of stratospheric absorption obtained from a high-altitude aircraft. Column amounts of stratospheric hydrogen cyanide have been derived from spectra recorded on eight flights. The average vertical column amount above 12 kilometers is 7.1 +/- 0.8 x 10(14) molecules per square centimeter, corresponding to an average mixing ratio of 170 parts per trillion by volume.
authors.forename: M T
authors.initials: MT
authors.lastname: Coffey
authors.forename: W G
authors.initials: WG
authors.lastname: Mankin
authors.forename: R J
authors.initials: RJ
authors.lastname: Cicerone