Applied Sciences (Jun 2021)

The August 2018 Geomagnetic Storm Observed by the High-Energy Particle Detector on Board the CSES-01 Satellite

  • Francesco Palma,
  • Alessandro Sotgiu,
  • Alexandra Parmentier,
  • Matteo Martucci,
  • Mirko Piersanti,
  • Simona Bartocci,
  • Roberto Battiston,
  • William Jerome Burger,
  • Donatella Campana,
  • Luca Carfora,
  • Guido Castellini,
  • Livio Conti,
  • Andrea Contin,
  • Giulia D’Angelo,
  • Cinzia De Donato,
  • Cristian De Santis,
  • Francesco Maria Follega,
  • Roberto Iuppa,
  • Ignazio Lazzizzera,
  • Nadir Marcelli,
  • Giuseppe Masciantonio,
  • Matteo Mergé,
  • Alberto Oliva,
  • Giuseppe Osteria,
  • Federico Palmonari,
  • Beatrice Panico,
  • Francesco Perfetto,
  • Piergiorgio Picozza,
  • Michele Pozzato,
  • Ester Ricci,
  • Marco Ricci,
  • Sergio Bruno Ricciarini,
  • Zouleikha Sahnoun,
  • Valentina Scotti,
  • Roberta Sparvoli,
  • Vincenzo Vitale,
  • Simona Zoffoli,
  • Paolo Zuccon

DOI
https://doi.org/10.3390/app11125680
Journal volume & issue
Vol. 11, no. 12
p. 5680

Abstract

Read online

On 25 August 2018, a G3-class geomagnetic storm reached the Earth’s magnetosphere, causing a transient rearrangement of the charged particle environment around the planet, which was detected by the High-Energy Particle Detector (HEPD) on board the China Seismo-Electromagnetic Satellite (CSES-01). We found that the count rates of electrons in the MeV range were characterized by a depletion during the storm’s main phase and a clear enhancement during the recovery caused by large substorm activity, with the key role played by auroral processes mapped into the outer belt. A post-storm rate increase was localized at L-shells immediately above ∼3 and mostly driven by non-adiabatic local acceleration caused by possible resonant interaction with low-frequency magnetospheric waves.

Keywords