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.
The August 2018 Geomagnetic Storm Observed by the High-Energy Particle Detector on Board the CSES-01 Satellite / Palma, F., Sotgiu, A., Parmentier, A., Martucci, M., Piersanti, M., Bartocci, S., Battiston, R., Burger, W.J., Campana, D., Carfora, L., Castellini, G., Conti, L., Contin, A., D'Angelo, G., De Donato, C., De Santis, C., Follega, F.M., Iuppa, R., Lazzizzera, I., Marcelli, N., et al.. - In: APPLIED SCIENCES. - ISSN 2076-3417. - ELETTRONICO. - 11:12(2021), p. 5680. [10.3390/app11125680]
The August 2018 Geomagnetic Storm Observed by the High-Energy Particle Detector on Board the CSES-01 Satellite
Battiston R.;Follega F. M.;Iuppa R.;Lazzizzera I.;Ricci E.;Zuccon P.
2021-01-01
Abstract
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.| File | Dimensione | Formato | |
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