Large changes of the magnetic field associated with magnetic perturbation events (MPEs)
with amplitudes| ΔB| of hundreds of nT and 5–10 min duration have been frequently …

Abstract The continental United States is well instrumented with facilities for mid‐latitude
upper atmosphere research that operate on a continuous basis. In addition, citizen scientists …

Geomagnetic substorm is one of the essential solar wind‐magnetosphere energy coupling
processes. In this study, we present a statistical analysis of substorms with different …

We investigate an unusual sequence and peculiar features of magnetotail changes during a
storm‐range substorm initiated by the interplanetary shock. Auroral observations and …

During geomagnetically disturbed times the surface geomagnetic field often changes
abruptly, producing geomagnetically induced currents (GICs) in a number of ground‐based …

The impact of interplanetary shocks on the magnetosphere can trigger magnetic substorms
that intensify auroral electrojet currents. These currents enhance ground magnetic field …

The accurate determination of auroral precipitation in global models has remained a
daunting and rather inexplicable obstacle. Understanding the calculation and balance of …

Auroral streamers have been found to be a particularly important cause of magnetic
perturbations within the auroral oval during substorms. We present a detailed investigation …

Understanding global space weather effects is of great importance to the international
scientific community, but more localized space weather predictions are important on a …

The solar cycle 24 exhibited only four supersubstorms (SSSs) during three of the
geomagnetic storms of May 2011, March 2012, and September 2017. A robust and …