Citation: | Wang, C. Q., Chang, Z., Zhang, X. X., Shen, G. H., Zhang, S. Y., Sun, Y. Q., Li, J. W., Jing, T., Zhang, H. X., Sun, Y. and Zhang, B. Q. (2020). Proton belt variations traced back to Fengyun-1C satellite observations. Earth Planet. Phys., 4(6), 611–618. doi: 10.26464/epp2020069 |
We used historical data to trace trapped protons observed by the Fengyun-1C (FY-1C) satellite at low Earth orbits (~800 km) and chose data at 5–10 MeV, 10–40 MeV, 40–100 MeV, and ~100–300 MeV from 25 March to 18 April 2000 to analyze the proton variations. Only one isolated strong storm was associated with a solar proton event during this period, and there was no influence from previous proton variations. Complex dynamic phenomena of proton trapping and loss were affected by this disturbance differently depending on the energy and