The F2-region reaction to geomagnetic storms usually called as an ionospheric storm is a
rather complicated event. It consists of so called positive and negative phases, which have …

The problem of the occurrence of disturbances of the ionospheric F 2-layer parameters prior
to the beginning of a geomagnetic storm is discussed. It is shown that disturbances …

Реакция области F ионосферы на геомагнитные бури, обычно называемая
ионосферной бурей, представляет собой весьма сложное явление. Она состоит из так …

Abstract On 21–22 June 2015, three consecutive interplanetary shocks slammed into the
Earth's magnetosphere. Immediately after the third shock at 18: 36 UT on 22 June, marked …

An analysis of the mechanisms that caused the storm-time effects during two geomagnetic
storms that occurred on 17 March 2013 and 2015 is presented. We used Global Navigation …

This study analyzes strong sporadic E layer (Es) formation in Boa Vista (BV, 2.8° N, 60.7° W,
dip: 18°), a low‐latitude region in the Brazilian sector, which occurred far after the onset of a …

In this work, we present the positioning error analysis of the 12 May 2021 moderate
geomagnetic storm. The storm happened during spring in the northern hemisphere (fall in …

In this study, a new multicomponent model (MCM) to determine the time variation of
ionospheric parameters is suggested. The model was based on the combination of wavelets …

This work presents an analysis of the ionospheric responses to the solar eclipse that
occurred on December 14, 2020, over the Brazilian sector. This event partially covers the …

In this work, we use a new version of the Disturbance Ionosphere Index (DIX) to evaluate
ionospheric disturbances over the Brazilian region during two intense geomagnetic storms …