Over the past decades significant progresses have been done to understand the origin of
seeding mechanisms of ionospheric irregularities. However, characterization of the global …

Geomagnetically induced currents (GICs) caused by interplanetary shocks represent a serious
space weather threat to modern technological infrastructure. The arrival of interplanetary …

Tomographic imaging provides a powerful technique for obtaining images of the spatial
distribution of ionospheric electron density in an altitude versus geographic latitude grid at a …

The effects of the 31 March 2001 severe magnetic storm on the Southern Hemisphere
ionosphere have been studied using ground-based and satellite measurements. The prime goal …

Previously, ionospheric signatures of plasmaspheric plumes were reported only at the North
American longitude sector. This led to the hypothesis that the geomagnetic field …

An analysis of the occurrence of equatorial plasma bubbles (EPBs) around the world during
the 2015 St. Patrick's Day geomagnetic storm is presented. A network of 12 Global …

We present space‐ and ground‐based multi‐instrument observations demonstrating the
impact of the 2022 Tonga volcanic eruption on dayside equatorial electrodynamics. A strong …

The occurrence of geomagnetically induced currents (GICs) poses serious threats to modern
technological infrastructure. Large GICs result from sharp variations of the geomagnetic …

Abstract Characterization of the global ionospheric irregularities as a function of local time,
longitude, altitude, and magnetic activities is still a challenge for radio frequency operations, …

Geomagnetically induced currents (GICs) represent a significant space weather issue for
power grid and pipeline infrastructure, particularly during severe geomagnetic storms. In this …