Study of the equatorial and low-latitude total electron content response to plasma bubbles during solar cycle 24–25 over the Brazilian region using a Disturbance Ionosphere indeX

Abstract. This work uses the Disturbance Ionosphere indeX (DIX) to evaluate ionospheric responses equatorial plasma bubble (EPB) events from 2013 2020 over Brazilian and low latitudes. We have compared DIX variations during EPBs ionosonde All-Sky Imager data, aiming physical characteristics of these events. Our results show that was able detect EPB-related TEC disturbances in terms their intensity occurrence times. Thus, agreed with ionosphere behavior before, during, after studied cases. Finally, we found magnitude those followed most trends solar activity, meaning total electron content tend be higher (lower) high (low) activity.