Abstract An analysis of the electron density measurements (Ne) along the flyby trajectories over the high-latitude region of the Northern Hemisphere under winter conditions in 2014 and 2016 has shown that the main large-scale structure observed by Swarm satellites is the tongue of ionization (TOI). At the maximum of the solar cycle (F10.7 = 160), the average value of Ne in the TOI region at an altitude of 500 km was 8 × $ 10^{4} $ $ cm^{–3} $. Two years later, at F10.7 = 100, Ne ~ 5 × $ 10^{4} $ $ cm^{–3} $ and Ne ~2.5 × $ 10^{4} $ $ cm^{–3} $ were observed at altitudes of 470 and 530 km, respectively. During the dominance of the azimuthal component of the interplanetary magnetic field, the TOI has been observed mainly on the dawn or dusk side depending on the sign of By. Simultaneous observations of the convective plasma drift velocity in the polar cap show the transpolar flow drift to the dawn (By < 0) or dusk side (By < 0). Observations and numerical simulation of the Ne distribution have confirmed the significant role of the electric field of the magnetospheric convection in the generation of large-scale irregularities in the polar ionosphere.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Large-scale irregularities of the winter polar topside ionosphere according to data from Swarm satellites


    Contributors:

    Published in:

    Publication date :

    2017




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    BKL:    55.60 Raumfahrttechnik / 39.00 Astronomie: Allgemeines / 50.93 Weltraumforschung
    Local classification TIB:    770/3520/8000




    Model of topside ionosphere scale height based on topside sounder data

    Kutiev, I. S. / Marinov, P. G. / Watanabe, S. et al. | British Library Conference Proceedings | 2006


    Model of topside ionosphere scale height based on topside sounder data

    Kutiev, I. S. / Marinov, P. G. / Watanabe, S. et al. | British Library Conference Proceedings | 2006


    Model of topside ionosphere scale height based on topside sounder data

    Kutiev, Ivan S. / Marinov, Pencho G. / Watanabe, Shigeto | Elsevier | 2005


    Topside sounding of ionosphere

    Chapman, J.H. | Engineering Index Backfile | 1962