The effect of NO(x) (NO + NO2) from aircraft engine exhaust on ozone and climate is of increasing concern as a result of anticipated growth in the world's subsonic aircraft fleet and new international efforts to build a supersonic transport (SST). Knowledge of NO(x) emissions currently relies on limited ground based testing of combustors and engines and on scaling relations to extrapolate emission values to upper atmosphere conditions. Direct observations made in the engine exhaust plume of the NASA ER-2 high altitude aircraft cruising at subsonic speeds in the lower midlatitude stratosphere are presented. Results demonstrate the technical feasibility of detecting aircraft plumes within minutes after emission with sufficient completeness and precision to calculate emission indices for reactive nitrogen and other species. Furthermore, the combined results increase confidence in using ground based observations to assess the atmospheric impact of some aircraft emissions.


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    Titel :

    In situ observations in aircraft exhaust plumes in the lower stratosphere at mid-latitudes


    Beteiligte:
    Fahey, David W. (Autor:in) / Keim, E. R. (Autor:in) / Woodbridge, E. L. (Autor:in) / Gao, R. S. (Autor:in) / Boering, K. A. (Autor:in) / Daube, B. C. (Autor:in) / Wofsy, S. C. (Autor:in) / Lohmann, R. P. (Autor:in) / Hinsta, E. J. (Autor:in) / Lowenstein, M. (Autor:in)


    Erscheinungsdatum :

    24.05.1994


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    In situ observations in aircraft exhaust plumes in the lower stratosphere at mid latitudes

    Fahey, D. W. et al. | British Library Conference Proceedings | 1994




    In situ Measurements of HOx in Super- and Subsonic Aircraft Exhaust Plumes

    Hanisco, T. F. et al. / France; Office national d'etudes et de recherches aerospatiales | British Library Conference Proceedings | 1996