One of the longstanding questions of space science is: How does the Earth's
magnetosphere generate auroral arcs? A related question is: What form of energy is …

Abstract The Active Magnetosphere and Planetary Electrodynamics Response Experiment
uses magnetic field data from the Iridium constellation to derive the global Birkeland current …

The dayside particle precipitation during the passage of a solar wind rotational discontinuity
(RD) event on 10 April 2015 is examined and reviewed. The RD leads to complex structures …

The solar wind-magnetosphere interaction drives diverse physical processes on the flanks
of Earth's magnetopause, and in turn these processes couple to the ionosphere. We …

Sheared plasma flows at the low‐latitude boundary layer (LLBL) correlate well with early
afternoon auroral arcs and upward field‐aligned currents. We present a simple analytic …

The Earth's low‐latitude boundary layer (LLBL) is the region where magnetosheath and
magnetospheric plasmas are mixed along the magnetospheric side of the low‐latitude …

During the past decade engineering‐grade magnetic field measurements from the low Earth
orbiting (LEO) Iridium constellation of communication satellites have been available to the …

The dependence of the upward field‐aligned current density (J||) at the dayside
magnetopause boundary layer is well described by a simple analytic model based on a …

The aurora has been related to magnetometer observations for centuries and to
geomagnetic indices for decades. As the number of stations and data processing power …

Understanding the capability of a simulation to reproduce observed features is a
requirement for its use in operational space weather forecasting. We compare statistically …