In the autumn of 2021, a multichannel imaging photometer of the Pulsating Aurora Imaging Photometer System was installed at the Verkhnetulomsky Observatory. During the first season of operation (2021/2022), measurements were made over the course of 163 nights in three modes of temporal resolution: 2.5 μs, 320 μs, and 41 ms. The high temporal resolution makes it possible to investigate the fine temporal structure of the emission, which are short (less than 1 s) bursts of UV radiation, so-called “microbursts” that can be single or follow in series. The long-term series of microbursts registered on November 27–29, 2021, were analyzed. It is shown that the series of bursts have a complex temporal structure, individual bursts have several peaks with intervals of 100–400 ms, the intervals between bursts are of the order of 1 s, and they appear in packs lasting from several seconds to minutes. The series appear both in quiet geomagnetic conditions and during substorms; the frequency and amplitude of bursts in the second case are significantly larger.


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    Titel :

    UV Microbursts in the Auroral Zone Measured by a Multichannel Imaging Photometer


    Weitere Titelangaben:

    Cosmic Res


    Beteiligte:
    Shchelkanov, K. D. (Autor:in) / Belov, A. A. (Autor:in) / Klimov, P. A. (Autor:in) / Nikolaeva, V. D. (Autor:in) / Saraev, R. E. (Autor:in) / Sharakin, S. A. (Autor:in)

    Erschienen in:

    Cosmic Research ; 62 , 4 ; 311-317


    Erscheinungsdatum :

    2024-08-01


    Format / Umfang :

    7 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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