05 Jan 2023
 | 05 Jan 2023

Electron radiation belt safety indices based on the SafeSpace modelling pipeline and dedicated to the internal charging risk

Nour Dahmen, Antoine Brunet, Sebastien Bourdarie, Christos Katsavrias, Guillerme Bernoux, Stefanos Doulfis, Afroditi Nasi, Constantinos Papadimitriou, Jesus Oliveros Fernandez, and Ioannis Daglis

Abstract. In this paper, we present the SafeSpace prototype for a safety warning system, dedicated to the electron-radiation-belt induced internal charging hazard, aboard spacecraft. The space weather tool relies on a synergy of physical models associated in a chain that covers the whole Sun-interplanetary space-Earth's inner magnetosphere medium. With the propagation of uncertainties along the modelling pipeline, the safety prototype provides a global nowcast and forecast (within a 4-day lead time) of the electron radiation belt dynamic as well as tailored indicators for space industry operators. They are meant to inform the users about the severity of the electron space environment via a three colored alarm system, which sorts the indices intensity according to a representative historical distribution of in-situ data. The system was challenged over the St-Patrick 2015 storm in order to assess its performance. It showed overall good nowcasting and forecasting capabilities, due to its broad physics-driven pipeline.

Nour Dahmen et al.

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • CC1: 'Comment on egusphere-2022-1509', Yann Pfau-Kempf, 10 Feb 2023
    • AC1: 'Reply on CC1', Nour Dahmen, 26 Apr 2023
  • RC1: 'Comment on egusphere-2022-1509', Yihua Zheng, 17 Mar 2023
    • AC2: 'Reply on RC1', Nour Dahmen, 26 Apr 2023
  • RC2: 'Comment on egusphere-2022-1509', Anonymous Referee #2, 01 Apr 2023
    • AC3: 'Reply on RC2', Nour Dahmen, 26 Apr 2023

Nour Dahmen et al.

Nour Dahmen et al.


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Short summary
Earth’s space environment is populated with charged particles. The energetic ones are trapped around Earth in radiation belts. Orbiting spacecrafts that cross their region can accumulate charges on their internal surfaces, leading to hazardous electrostatic discharges. This paper showcases the SafeSpace safety prototype, that aims at warning satellite operators of probable incoming hazardous events, by simulating the dynamics of the electron radiation belts from their origin at the Sun.