Highlight Ionospheric disturbances over Brazilian and African due to CME, using magnetometer and VTEC. Positive ionospheric disturbances during the geomagnetic storm main phase over Brazil and Africa. EIA was disturbed in the American and African sectors during the main phase of the geomagnetic storm. The EIA over the Brazilian sector was more disturbed than the African sector.

    Abstract Coronal mass ejection (CME) occurs when there is an abrupt release of a large amount of solar plasma, and this cloud of plasma released by the Sun has an intrinsic magnetic field. In addition, CMEs often follow solar flares (SF). The CME cloud travels outward from the Sun to the interplanetary medium and eventually hits the Earth’s system. One of the most significant aspects of space weather is the ionospheric response due to SF or CME. The direction of the interplanetary magnetic field, solar wind speed, and the number of particles are relevant parameters of the CME when it hits the Earth’s system. A geomagnetic storm is most geo-efficient when the plasma cloud has an interplanetary magnetic field southward and it is accompanied by an increase in the solar wind speed and particle number density. We investigated the ionospheric response (F-region) in the Brazilian and African sectors during a geomagnetic storm event on September 07–10, 2017, using magnetometer and GPS-TEC networks data. Positive ionospheric disturbances are observed in the VTEC during the disturbed period (September 07–08, 2017) over the Brazilian and African sectors. Also, two latitudinal chains of GPS-TEC stations from the equatorial region to low latitudes in the East and West Brazilian sectors and another chain in the East African sector are used to investigate the storm time behavior of the equatorial ionization anomaly (EIA). We noted that the EIA was disturbed in the American and African sectors during the main phase of the geomagnetic storm. Also, the Brazilian sector was more disturbed than the African sector.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Ionospheric storm due to solar Coronal mass ejection in September 2017 over the Brazilian and African longitudes


    Beteiligte:
    Fagundes, PR. (Autor:in) / Tsali-Brown, VY. (Autor:in) / Pillat, VG. (Autor:in) / Arcanjo, MO. (Autor:in) / Venkatesh, K. (Autor:in) / Habarulema, JB. (Autor:in) / Bolzan, MJA (Autor:in) / de. Jesus, R (Autor:in) / de Abreu, AJ (Autor:in) / Tardelli, A. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2022-07-16


    Format / Umfang :

    21 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Ionospheric storm of September 2017 observed at ionospheric station Pruhonice, the Czech Republic

    Mosna, Zbysek / Kouba, Daniel / Knizova, Petra Koucka et al. | Elsevier | 2019


    Coronal mass-ejection events

    Fisher, Richard R. | Elsevier | 1984



    Solar Active Longitudes and the Large Scale Structure of the Coronal Field

    Stewart, G. A. / Bravo, S. / COSPAR et al. | British Library Conference Proceedings | 1995