Fig. 2

Time series of a luminosity of ASI images along DMSP track, b luminosity of ASI images along DMSP track subtracting the background luminosity, c plasma density, d cross-track velocity, e electron energy flux and f ion energy flux by DMSP 15 for Fig. 1Aa–Aj event. g–i and m–r, which also show the data from DMSP 15, are given in the same format as a–f for Fig. 1Ba–Bj event and Fig. 1Ca–Cj events, respectively