Radiation Belt Environmental Indicators for the Safety of Space Assets

European Union's Horizon 2020 research and innovation programme

Work package on Inner Magnetosphere Dynamics


Credit: NASA

SafeSpace Page Project Inner magnetosphere Density Model Movies

Project overview

The SafeSpace project aims at advancing space weather nowcasting and forecasting capabilities and, consequently, at contributing to the safety of space assets through the transition of powerful tools from research to operations (R2O). This will be achieved through the synergy of five well-established space weather models (CDPP solar disturbance propagation tool, EUHFORIA CME evolution model, ONERA Neural Network tool, BIRA-IASB plasmasphere model and ONERA Salammbô radiation belts code), which cover the whole Sun –interplanetary space –Earth’s magnetosphere chain. The combined use of these models will enable the delivery of a sophisticated model of the Van Allen electron belt and of a prototype space weather service of tailored particle radiation indicators. Moreover, it will enable forecast capabilities with a target lead time of 2 to 4 days, which is a tremendous advance from current forecasts, which are limited to lead times of a few hours.

SafeSpace will improve radiation belt modelling through the incorporation into the Salammbô model of magnetospheric processes and parameters of critical importance to radiation belt dynamics. Furthermore, solar and interplanetary conditions will be used as initial conditions to drive the advanced radiation belt model and to provide the link to the solar origin and the interplanetary drivers of space weather. This approach will culminate in a prototype early warning system for detrimental space weather events, integrating information all the way from the Sun to the inner magnetosphere. With a major European space company, Thales Alenia Space (TAS), as a Partner in SafeSpace, we will define indicators of particle radiation of use to space industry and spacecraft operators. Indicator values will be generated by the advanced radiation belt model and the performance of the prototype service will be evaluated by TAS and by other stakeholders, who will be selected in collaboration with the External Advisory Panel of the project.


Go to SafeSpace

Work package on Inner Magnetosphere Dynamics

Objectives

  • Characterization and parameterisation through predicted geomagnetic activity indices of statistical properties of the background plasma density (inside as well as outside the plasmasphere) impacting wave-particle interaction modelling (WP3.1)
  • Prototype of a model of diffusion coefficients (mean, median and percentile values to address uncertainties in radiation belt dynamics) (WP3.2)
  • Improvement of the existing Salammbô electron radiation belt model according to new definition of interplanetary drivers as well as inner magnetosphere drivers (WP3.3)
  • Check if data assimilation tool and Salammbô code are stable and converge for various solar wind conditions for future use in prototyping activities (WP3.3)
  • Produce high fidelity state of the radiation belts and therefore have a realistic initial state to then make more accurate predictions accounting for the past history of radiation belt dynamics (WP3.4)