Dynamics of sprite streamers in varying air density

Jianqi Qin, Victor P. Pasko

    Research output: Contribution to journalArticle

    9 Citations (Scopus)

    Abstract

    Similarity laws for streamer discharges, which state that the properties of streamers such as streamer radius, electric field, and electron density should respectively scale as N-1, N1, and N2 in different but uniform air densities N, are important relations that have provided a general understanding of the mesospheric sprite discharges based on existing knowledge of streamers in laboratory conditions. Recent modeling studies, however, show that the properties of sprite streamers in varying air density do not follow exactly or even contradict the similarity relations. We present here simulation results and related analysis of sprite streamers to provide a unified view and resolve these contradictions. Our results indicate that the properties of streamers in varying air density are determined by the physical dimensions of streamers and the reduced electric field E/N, with the varying air density N being only one of the three factors controlling the streamer properties. Key Points Air density is only one of the three factors affecting streamer dynamics Initial conditions and applied electric field are the other two factors Sprite streamers are smaller at lower altitudes due to branching

    Original languageEnglish (US)
    Pages (from-to)2031-2036
    Number of pages6
    JournalGeophysical Research Letters
    Volume42
    Issue number6
    DOIs
    StatePublished - Mar 28 2015

    Fingerprint

    sprite
    air
    electric field
    electric fields
    low altitude
    electron density
    radii
    modeling
    simulation

    All Science Journal Classification (ASJC) codes

    • Geophysics
    • Earth and Planetary Sciences(all)

    Cite this

    @article{adf697349b2d43208094ea6c0fda5fbb,
    title = "Dynamics of sprite streamers in varying air density",
    abstract = "Similarity laws for streamer discharges, which state that the properties of streamers such as streamer radius, electric field, and electron density should respectively scale as N-1, N1, and N2 in different but uniform air densities N, are important relations that have provided a general understanding of the mesospheric sprite discharges based on existing knowledge of streamers in laboratory conditions. Recent modeling studies, however, show that the properties of sprite streamers in varying air density do not follow exactly or even contradict the similarity relations. We present here simulation results and related analysis of sprite streamers to provide a unified view and resolve these contradictions. Our results indicate that the properties of streamers in varying air density are determined by the physical dimensions of streamers and the reduced electric field E/N, with the varying air density N being only one of the three factors controlling the streamer properties. Key Points Air density is only one of the three factors affecting streamer dynamics Initial conditions and applied electric field are the other two factors Sprite streamers are smaller at lower altitudes due to branching",
    author = "Jianqi Qin and Pasko, {Victor P.}",
    year = "2015",
    month = "3",
    day = "28",
    doi = "10.1002/2015GL063269",
    language = "English (US)",
    volume = "42",
    pages = "2031--2036",
    journal = "Geophysical Research Letters",
    issn = "0094-8276",
    publisher = "American Geophysical Union",
    number = "6",

    }

    Dynamics of sprite streamers in varying air density. / Qin, Jianqi; Pasko, Victor P.

    In: Geophysical Research Letters, Vol. 42, No. 6, 28.03.2015, p. 2031-2036.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Dynamics of sprite streamers in varying air density

    AU - Qin, Jianqi

    AU - Pasko, Victor P.

    PY - 2015/3/28

    Y1 - 2015/3/28

    N2 - Similarity laws for streamer discharges, which state that the properties of streamers such as streamer radius, electric field, and electron density should respectively scale as N-1, N1, and N2 in different but uniform air densities N, are important relations that have provided a general understanding of the mesospheric sprite discharges based on existing knowledge of streamers in laboratory conditions. Recent modeling studies, however, show that the properties of sprite streamers in varying air density do not follow exactly or even contradict the similarity relations. We present here simulation results and related analysis of sprite streamers to provide a unified view and resolve these contradictions. Our results indicate that the properties of streamers in varying air density are determined by the physical dimensions of streamers and the reduced electric field E/N, with the varying air density N being only one of the three factors controlling the streamer properties. Key Points Air density is only one of the three factors affecting streamer dynamics Initial conditions and applied electric field are the other two factors Sprite streamers are smaller at lower altitudes due to branching

    AB - Similarity laws for streamer discharges, which state that the properties of streamers such as streamer radius, electric field, and electron density should respectively scale as N-1, N1, and N2 in different but uniform air densities N, are important relations that have provided a general understanding of the mesospheric sprite discharges based on existing knowledge of streamers in laboratory conditions. Recent modeling studies, however, show that the properties of sprite streamers in varying air density do not follow exactly or even contradict the similarity relations. We present here simulation results and related analysis of sprite streamers to provide a unified view and resolve these contradictions. Our results indicate that the properties of streamers in varying air density are determined by the physical dimensions of streamers and the reduced electric field E/N, with the varying air density N being only one of the three factors controlling the streamer properties. Key Points Air density is only one of the three factors affecting streamer dynamics Initial conditions and applied electric field are the other two factors Sprite streamers are smaller at lower altitudes due to branching

    UR - http://www.scopus.com/inward/record.url?scp=84927794564&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84927794564&partnerID=8YFLogxK

    U2 - 10.1002/2015GL063269

    DO - 10.1002/2015GL063269

    M3 - Article

    VL - 42

    SP - 2031

    EP - 2036

    JO - Geophysical Research Letters

    JF - Geophysical Research Letters

    SN - 0094-8276

    IS - 6

    ER -