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On the Interplanetary Parameter Schemes Which Drive the Variability of the Source/Seed Electron Population at GEO
Author(s) -
Katsavrias Ch.,
Aminalragia–Giamini S.,
Papadimitriou C.,
Sandberg I.,
Jiggens P.,
Daglis I.A.,
Evans H.
Publication year - 2021
Publication title -
journal of geophysical research: space physics
Language(s) - English
Resource type - Journals
eISSN - 2169-9402
pISSN - 2169-9380
DOI - 10.1029/2020ja028939
Subject(s) - solar wind , geosynchronous orbit , electron , physics , spacecraft , interplanetary medium , computational physics , population , environmental science , range (aeronautics) , spacecraft charging , geostationary orbit , interplanetary spaceflight , space weather , coronal mass ejection , atmospheric sciences , satellite , meteorology , aerospace engineering , plasma , astronomy , engineering , demography , quantum mechanics , sociology
Electron variability at geosynchronous orbit (GEO) plays a key role in satellite operations especially concerning the low energies which can lead to surface charging effects on spacecraft. In this work, we use 9 years (2011–2019) of electron measurements from GOES‐13, 14 and 15 satellites to study the evolution of electron fluxes with respect to various solar, solar wind, and magnetospheric parameters. The source electron fluxes are shown to be well correlated with AE index and Newell's function, while the seed electron fluxes are shown to be well correlated with solar wind speed. Based on these findings, we have developed a predictive multiple regression model for electron fluxes in the 30–600 keV energy range which uses solely solar wind parameters' measurements. The model may have a variety of applications related to the nowcasting/forecasting of the distribution of electron fluxes at GEO including serving as low‐energy boundary conditions for studying electron acceleration to relativistic energies or providing information for predicting surface and/or internal charging effects on spacecraft.