AbstractWe investigated reactions of the middle latitude ionospheric D-region to geomagnetic sudden storm commencements, to solar flares and to bursts of radio frequency radiation. Such events are, as a rule, accompanied by precipitation of the high energy electrons and protons, leading to short-term (of the order of units-tens of minutes) increases by about 50–200% (sometimes more) of the electron density both in the lower (z < 75 km) and in the upper (z > 75 km) middle latitude D-region. Such processes in this height range are accompanied by the generation and enhancement of acoustic-gravitational waves with periods of about units of minutes and characteristic duration of 10–30 min. At the same time, the electron density increases by 50–200%, and quasi-harmonic changes in the height-time N(z, t) variations were observed.


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    Titel :

    The midlatitude ionosphere D-region response to some events on the sun


    Beteiligte:

    Erschienen in:

    Advances in Space Research ; 31 , 4 ; 1001-1006


    Erscheinungsdatum :

    01.01.2002


    Format / Umfang :

    6 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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