Variability of ionospheric plasma: results from the ESA swarm mission
Swarm is the first European Space Agency (ESA) constellation mission for Earth
Observation. Three identical Swarm satellites were launched into near-polar orbits on 22 …
Observation. Three identical Swarm satellites were launched into near-polar orbits on 22 …
Quiet, discrete auroral arcs—Observations
T Karlsson, L Andersson, DM Gillies, K Lynch… - Space science …, 2020 - Springer
Quiet, discrete auroral arcs are an important and fundamental consequence of solar wind-
magnetosphere interaction. We summarize the current standing of observations of such …
magnetosphere interaction. We summarize the current standing of observations of such …
Physical processes of meso-scale, dynamic auroral forms
C Forsyth, VA Sergeev, MG Henderson… - Space Science …, 2020 - Springer
Meso-scale auroral forms, such as poleward boundary intensifications, streamers, omega
bands, beads and giant undulations, are manifestations of dynamic processes in the …
bands, beads and giant undulations, are manifestations of dynamic processes in the …
Auroral drivers of large dB∕ dt during geomagnetic storms
Forecasting geomagnetically induced currents (GICs) remains a difficult challenge, and
open questions hindering our understanding include when and where GICs become large …
open questions hindering our understanding include when and where GICs become large …
Interhemispheric comparisons of large nighttime magnetic perturbation events relevant to GICs
MJ Engebretson, KR Kirkevold… - Journal of …, 2020 - Wiley Online Library
Nearly all studies of impulsive magnetic perturbation events (MPEs) with large magnetic
field variability (dB/dt) that can produce dangerous geomagnetically induced currents (GICs) …
field variability (dB/dt) that can produce dangerous geomagnetically induced currents (GICs) …
Meso-scale electrodynamic coupling of the Earth magnetosphere-ionosphere system
Within the fully integrated magnetosphere-ionosphere system, many electrodynamic
processes interact with each other. We review recent advances in understanding three …
processes interact with each other. We review recent advances in understanding three …
Dawnside auroral polarization streams
Although the postmidnight‐to‐dawn sector of the auroral ionosphere contains interesting
dynamic phenomena that may significantly impact the magnetosphere‐ionosphere …
dynamic phenomena that may significantly impact the magnetosphere‐ionosphere …
The occurrence of embedded region 1 and 2 currents depends on geomagnetic activity level
Embedded Region 1 and 2 field‐aligned currents (FACs), intense FAC layers of mesoscale
latitudinal width near the interface between large‐scale Region 1 and Region 2 FACs, are …
latitudinal width near the interface between large‐scale Region 1 and Region 2 FACs, are …
[HTML][HTML] Automatic classification of mesoscale auroral forms using convolutional neural networks
ZX Guo, JY Yang, MW Dunlop, JB Cao, LY Li… - Journal of Atmospheric …, 2022 - Elsevier
Convolutional neural networks (CNNs) in deep learning enable the extraction of features in
image data. Through the multi-layer superposition of a convolutional neural network, we can …
image data. Through the multi-layer superposition of a convolutional neural network, we can …
Radar observations of flows leading to substorm onset over Alaska
About 40 years after the discovery of the substorm, auroral observations were used to
propose that substorm onset was triggered in the inner plasmas sheet (equatorward portion …
propose that substorm onset was triggered in the inner plasmas sheet (equatorward portion …