[P-EM17] Space Weather and Space Climate

[PEM17-16] Geosynchronous Energetic Particle Variations based on FY-2 Series Satellites Observations

*chunqin wang¹, guohong shen¹, shenyi zhang¹, huanxin zhang¹ (1.national space sciend center,CAS)

Keywords:FY2 satellites, energetic protons, energetic electrons

FY2 series satellites are the principal observational platforms for covering dynamic weather events and the near-earth space environment in China.High energy particle detectors carried on the satellites have provided continuous and simultaneous monitoring of the geosynchronous energetic particle environment.The energetic particle detector flown on FY2G and FY2H satellite consists of two instruments.The high energy electron instrument senses electron flux from 200keV to greater than 4MeV with eleven channels.The high energy proton instrument senses protons with seven channels from 4MeV to 300 MeV.We present several observations performed from 2015 to 2019 based on FY2G and FY2H. A precise description and preliminary analysis of particle dynamic during disturbances such as magnetic storm,sub storm and solar eruption suggests that the detector can reach an accurate response to various disturbances and can provide refined particles data. Further comparisons of particles dynamic observations with different instruments on other satellites demonstrate that the energetic particle fluxes can enter into a coherent level, yet intensive disturbances can cause great difference between observations of satellites, which can be helpful for data assimilation of multi-satellite as well as further research in more complicated magnetosphere energy particle dynamic.