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  • 1
    Electronic Resource
    Electronic Resource
    Evidence for heterogeneous reactions in the Antarctic autumn stratosphere (1993)
    [s.l.] : Nature Publishing Group
    Nature 361 (1993), S. 49-51 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Antarctic ozone depletion is believed to be dominated by reactive chlorine in the stratosphere participating in a catalytic cycle involving the CIO dimer, C12O2 (ref. 6). The importance of NO2 in the Antarctic stratosphere stems from its influence on the partitioning of chlorine between the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/361049a0
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  • 2
    Electronic Resource
    Electronic Resource
    Ballon-borne and aircraft infrared measurements of ethane (C2H6) in the upper troposphere and lower stratosphere (1984)
    Springer
    Journal of atmospheric chemistry 2 (1984), S. 211-221 
    Details
    ISSN: 1573-0662
    Keywords: Solar spectra ; Atmospheric trace constituents ; ethane (C2H6) ; atmospheric chemistry ; Fourier transform spectroscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Geosciences
    Notes: Abstract Quantitative infrared measurements of ethane (C2H6) in the upper troposphere and lower stratosphere are reported. The results have been obtained from the analysis of absorption features of the υ9 band at 12.2 μm, which have been identified in high-resolution ballon-borne and aircraft solar absorption spectra. The ballon-borne spectral data were recorded at sunset with the 0.02 cm-1 resolution University of Denver interferometer system from a float altitude of 33.5 km near Alamogordo, New Mexico, on 23 March 1981. The aircraft spectra were recorded at sunset in July 1978 with a 0.06 cm-1 resolution interferometer aboard a jet aircraft at 12 km altitude, near 35°N, 96°W. The balloon analysis indicates the C2H6 mixing ratio decreased from 3.5 ppbv near 8.8 km to 0.91 ppbv near 12.1 km. The results are consistent with the colum value obtained from the aircraft data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00114133
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Stratospheric N2O5, CH4, and N2O profiles from IR solar occultation spectra (1993)
    Springer
    Journal of atmospheric chemistry 16 (1993), S. 31-40 
    Details
    ISSN: 1573-0662
    Keywords: Atmospheric composition ; middle atmosphere ; stratosphere ; Fourier transform spectroscopy ; balloon measurements ; nitrogen oxydes ; methane
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Geosciences
    Notes: Abstract Stratospheric volume mixing ratio profiles of N2O5, CH4, and N2O have been retrieved from a set of 0.052 cm−1 resolution (FWHM) solar occultation spectra recorded at sunrise during a balloon flight from Aire sur l'Adour, France (44° N latitude) on 12 October 1990. The N2O5 results have been derived from measurements of the integrated absorption by the 1246 cm−1 band. Assuming a total intensity of 4.32×10−17 cm−1/molecule cm−2 independent of temperature, the retrieved N2O5 volume mixing ratios in ppbv (parts per billion by volume, 10−9), interpolated to 2 km height spacings, are 1.64±0.49 at 37.5 km, 1.92±0.56 at 35.5 km, 2.06±0.47 at 33.5 km, 1.95±0.42 at 31.5 km, 1.60±0.33 at 29.5 km, 1.26±0.28 at 27.5 km, and 0.85±0.20 at 25.5 km. Error bars indicate the estimated 1-σ uncertainty including the error in the total band intensity (±20% has been assumed). The retrieved profiles are compared with previous measurements and photochemical model results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00696622
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  • 4
    Electronic Resource
    Electronic Resource
    Intercomparison of NO column measurements during MAP/GLOBUS 1985 (1988)
    Springer
    Journal of atmospheric chemistry 7 (1988), S. 353-367 
    Details
    ISSN: 1573-0662
    Keywords: Nitric oxide ; intercomparison ; chemiluminescence ; infrared ; ultraviolet ; photochemical predictions ; GLOBUS
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Geosciences
    Notes: Abstract Column measurements of nitric oxide were made using several techniques during the MAP/GLOBUS campaign in France in September 1985. The data sets are nearly co-located and simultaneous, therefore allowing a valid intercomparison of the various measurement methods. The range of altitudes sampled differs from instrument to instrument. This complicates the comparison because the data sets are to some extent complementary. The NO distributions apparently vary significantly from day to day, and possibly over shorter timescales. Changes in dynamics may be responsible for these variations. The results from the instruments which measure in the infrared and the ultraviolet are self-consistent, and show good agreement with photochemical predictions. On 19 September, when the intercomparison was made, the profile measured by the in-situ chemiluminescent instrument differed significantly from the predicted profile, and the measured columns were generally higher.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00058710
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