An equatorial plasma bubble (EPB) event is the plasma depletion in equatorial ionosphere, which is widely accepted to be generated by the Rayleigh-Taylor (R-T) instability in the F layer. After sunset, the pre-reversal enhancement of the eastward electric field can elevate the F layer to higher altitudes, thereby increasing the R-T instability growth rate (Kelley, 2009). Then the EPB will occur if an initial large-scale wave structure exists at the bottom side of the F layer (Tsunoda, 2010). The EPB can cause large ionospheric gradients and the scintillations of radio signals by the contained irregularity structures, which can exert severe effects on navigation and communication systems (Affonso et al., 2022;Kintner et al., 2007). So, monitoring and forecasting of the EPB is becoming an important space weather issue among the scientific community.Many measurements from various instruments are applied to study the EPB activities, such as the in situ satellite data (