Preprints
https://doi.org/10.5194/angeo-2022-18
https://doi.org/10.5194/angeo-2022-18
05 Sep 2022
 | 05 Sep 2022
Status: this preprint was under review for the journal ANGEO but the revision was not accepted.

Latitudinal variations of ionospheric-thermospheric responses to Geomagnetic Storms from Multi-Instruments

Rasim Shahzad, Munawar Shah, Ayesha Abbas, Amna Hafeez, Andres Calabia, Angela Melgarejo-Morales, and Najam Abbas Naqvi

Abstract. Scintillations of transionospheric satellite signals during geomagnetic storms can severely threaten navigation accuracy and the integrity of space assets. We analyze vertical Total Electron Content (vTEC) variations from the Global Navigation Satellite System (GNSS) at different latitudes around the world during the geomagnetic storms of June 2015 and August 2018. The resulting ionospheric perturbations at the low-and mid-latitudes are investigated in terms of the prompt penetration electric field (PPEF), the equatorial electrojet (EEJ), and the magnetic H component from INTERMAGNET stations near the equator. East and South-East Asia, Russia, and Oceania exhibited positive vTEC disturbances, while South American stations showed negative vTEC disturbances during both storms. We also analyzed the vTEC from the Swarm satellites and found similar results to the GNSS retrieved vTEC during different phases of both geomagnetic storms. Moreover, we observed that ionospheric plasma tended to increase rapidly during the afternoon in the main phase of the storms. At nighttime, the ionosphere depicted an opposite behavior under similar conditions. The equatorial ionization anomaly (EIA) crest expansion to mid and high latitudes is driven by PPEF during daytime at the main and recovery phases of the storms. The magnetic H component exhibits a longitudinal behavior along with the EEJ enhancement near the magnetic equator.

Rasim Shahzad, Munawar Shah, Ayesha Abbas, Amna Hafeez, Andres Calabia, Angela Melgarejo-Morales, and Najam Abbas Naqvi

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on angeo-2022-18', Anonymous Referee #1, 19 Oct 2022
    • AC1: 'Reply on RC1', munawar shah, 02 Dec 2022
  • CC1: 'Comment on angeo-2022-18', MAJID KHAN, 07 Nov 2022
    • AC2: 'Reply on CC1', munawar shah, 02 Dec 2022
  • RC2: 'Comment on angeo-2022-18', Anonymous Referee #2, 10 Nov 2022
    • AC3: 'Reply on RC2', munawar shah, 02 Dec 2022

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on angeo-2022-18', Anonymous Referee #1, 19 Oct 2022
    • AC1: 'Reply on RC1', munawar shah, 02 Dec 2022
  • CC1: 'Comment on angeo-2022-18', MAJID KHAN, 07 Nov 2022
    • AC2: 'Reply on CC1', munawar shah, 02 Dec 2022
  • RC2: 'Comment on angeo-2022-18', Anonymous Referee #2, 10 Nov 2022
    • AC3: 'Reply on RC2', munawar shah, 02 Dec 2022
Rasim Shahzad, Munawar Shah, Ayesha Abbas, Amna Hafeez, Andres Calabia, Angela Melgarejo-Morales, and Najam Abbas Naqvi
Rasim Shahzad, Munawar Shah, Ayesha Abbas, Amna Hafeez, Andres Calabia, Angela Melgarejo-Morales, and Najam Abbas Naqvi

Viewed

Total article views: 857 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
650 173 34 857 22 22
  • HTML: 650
  • PDF: 173
  • XML: 34
  • Total: 857
  • BibTeX: 22
  • EndNote: 22
Views and downloads (calculated since 05 Sep 2022)
Cumulative views and downloads (calculated since 05 Sep 2022)

Viewed (geographical distribution)

Total article views: 857 (including HTML, PDF, and XML) Thereof 857 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 24 Feb 2024
Download
Short summary
The ionospheric satellite signals during geomagnetic storms can severely threaten navigation accuracy. We analyzed vertical Total Electron Content (vTEC) variations from the Global Navigation Satellite System at different latitudes around the world during the geomagnetic storms of June 2015 and August 2018. We also analyzed the vTEC from the Swarm satellites and found similar results to the GNSS retrieved vTEC during different phases of both geomagnetic storms.