Improving the Salammbo code modelling and using it to better predict radiation belts dynamics
Abstract
In the framework of the FP7-SPACESTORM project, one objective is to improve the reliability of the model-based predictions performed of the radiation belt dynamics (first developed during the FP7-SPACECAST project). In this purpose we have analyzed and improved the way the simulations using the ONERA Salammbô code are performed, especially in : - Better controlling the driving parameters of the simulation; - Improving the initialization of the simulation in order to be more accurate at most energies for L values between 4 to 6; - Improving the physics of the model. For first point a statistical analysis of the accuracy of the Kp index has been conducted. For point two we have based our method on a long duration simulation in order to extract typical radiation belt states depending on the solar wind stress and geomagnetic activity. For last point we have first improved separately the modelling of different processes acting in the radiation belts and then, we have analyzed the global improvements obtained when simulating them together. We'll discuss here on all these points and on the balance that has to be taken into account between modeled processes to globally improve the radiation belt modelling.
- Publication:
-
41st COSPAR Scientific Assembly
- Pub Date:
- July 2016
- Bibcode:
- 2016cosp...41E1216M