Computer Science – Sound
Scientific paper
May 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983natur.303..221k&link_type=abstract
Nature (ISSN 0028-0836), vol. 303, May 19, 1983, p. 221, 222. Research sponsored by the Chemical Manufacturer's Association.
Computer Science
Sound
5
Atmospheric Composition, Ethane, Methyl Chloride, Nitrogen Dioxide, Stratosphere, Absorption Spectra, Balloon Sounding, Extremum Values, Molecular Spectra
Scientific paper
High-resolution absorption spectra at 3.4 microns obtained with a balloon-borne Michelson interferometer at sunset in October 1978 at an altitude of 39 km are presented and analyzed in terms of stratospheric NO2, CH3Cl, and C2H6 volume mixing ratios. The bandwidth was chosen to cover the nu1 + nu3 band of NO2, the nu1 band of CH3Cl and the nu7 band of C2H6. A mixing-ratio profile for NO2 calculated in 1-km layers from 19 to 35 km altitude is presented and shown to be in general agreement with earlier observations. Identification of CH3Cl and C2H6 from the spectra was not possible, but upper limits for the mixing ratios in the lower stratosphere were determined to be 1.25 x 10 to the -9th and 1 x 10 to the -9th, respectively. With improvements in sensitivity, the techniques used here are seen as applicable to the remote sensing of these gases.
Buijs H. L.
Kendall J. W. D.
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