On Feb. 4 and 6, 1969, and May 11, 1970, Aerobee rockets carrying neutral mass spectrometers were flown at Fort Churchill, Canada during conditions of low geomagnetic activity. As in earlier flights at White Sands, New Mexico, each rocket carried both 'open' and 'closed' ion source instruments. Vertical profiles of N2, O2, O, Ar, and He were measured. Results obtained were essentially the same as those observed at White Sands except that for the winter flights helium appeared to be in diffusive equilibrium.


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    Title :

    Study of neutral composition of lower thermosphere at Fort Churchill.


    Contributors:

    Conference:

    Plenary Meeting on Space research XIII ; 1972 ; Madrid, Spain


    Publication date :

    1973-01-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Atmospheric composition in the lower thermosphere.

    Colegrove, F. D. / Hanson, W. B. / Johnson, F. S. | NTRS | 1966


    Neutral Density Cells in the Lower Thermosphere at High Latitudes

    Crowley, G. / Schoendorf, J. / Roble, R. G. et al. | British Library Conference Proceedings | 1996



    Properties of the neutral density and composition in the thermosphere

    Philbrick, C.R. / Garnder, M.E. / Lämmerzhal, P. | Elsevier | 1983