AbstractAt radar frequencies in the range 50 MHz to 250 MHz, at times even to over 1 GHz, strong enhancements of scattering cross section occur between ≅ 80km and ≅ 95km altitude in summer at high latitudes. These echoes, termed “ Polar Mesosphere Summer Echoes” (PMSE), have attracted considerable experimental effort. Observations of this phenomenon are reviewed in the context of atmospheric dynamics and of scattering processes. Recent rocket and radar measurements indicate that a partial reflection from a multitude of ion layers and constructive interference causes at least some of the PMSE. It is discussed which further observations are necessary and some possible practical consequences of PMSE are pointed out.


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    Titel :

    Studies of polar mesosphere summer echoes by VHF radar and rocket probes


    Beteiligte:
    Hoppe, U.-P. (Autor:in) / Blix, T.A. (Autor:in) / Thrane, E.V. (Autor:in) / Lübken, F.-J. (Autor:in) / Cho, J.Y.N. (Autor:in) / Swartz, W.E. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 14 , 9 ; 139-148


    Erscheinungsdatum :

    1994-01-01


    Format / Umfang :

    10 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Studies of Polar Mesosphere Summer Echoes by VHF radar and rocket probes

    Hoppe, U. -P. / Blix, T. A. / Thrane, E. V. et al. | NTRS | 1994


    Studies of Polar Mesosphere Summer Echoes by VHF Radar and Rocket Probes

    Hoppe, U.-P. / Blix, T. A. / Thrane, E. V. et al. | British Library Conference Proceedings | 1994


    Physics of Polar Mesosphere Summer Echoes

    Klostermeyer, J. / European Space Agency; Programme Advisory Committee on the Special Project concerning the Launching of Sounding Rockets | British Library Conference Proceedings | 1999


    Polar Mesosphere Summer Echoes: Dynamics and Aeronomy of the Mesosphere

    Roettger, J. / International Council of Scientific Unions; Committee on Space Research | British Library Conference Proceedings | 1994