Auroral oval morphology: Dawn‐dusk asymmetry partially induced by Earth's rotation

M Decotte, KM Laundal, SM Hatch… - Journal of Geophysical …, 2023 - Wiley Online Library
The auroral oval morphology has been investigated in previous studies presenting maps of
average auroral precipitation. However, such distributions tend to emphasize auroral …

Three‐Dimensional Modeling of the Ground Electric Field in Fennoscandia During the Halloween Geomagnetic Storm

E Marshalko, M Kruglyakov, A Kuvshinov… - Space …, 2023 - Wiley Online Library
In this study, we perform three‐dimensional (3‐D) ground electric field (GEF) modeling in
Fennoscandia for three days of the Halloween geomagnetic storm (29–31 October 2003) …

Geolectric field measurement, modelling and validation during geomagnetic storms in the UK

CD Beggan, GS Richardson, O Baillie… - Journal of space …, 2021 - swsc-journal.org
Significant geoelectric fields are produced by the interaction of rapidly varying magnetic
fields with the conductive Earth, particularly during intense geomagnetic activity. Though …

Modeling the geomagnetic response to the September 2017 space weather event over Fennoscandia using the space weather modeling framework: Studying the …

AP Dimmock, DT Welling, L Rosenqvist… - Space …, 2021 - Wiley Online Library
We must be able to predict and mitigate against geomagnetically induced current (GIC)
effects to minimize socio‐economic impacts. This study employs the space weather …

Predicting interplanetary shock occurrence for solar cycle 25: Opportunities and challenges in space weather research

DM Oliveira, RC Allen, LR Alves, SP Blake… - Space …, 2024 - Wiley Online Library
Interplanetary (IP) shocks are perturbations observed in the solar wind. IP shocks correlate
well with solar activity, being more numerous during times of high sunspot numbers. Earth …

Spatial resolution in inverse problems: The EZIE satellite mission

M Madelaire, K Laundal, J Gjerloev… - Journal of …, 2023 - Wiley Online Library
Inverse modeling has become one of the primary methods for studying ionospheric
electrodynamics, especially when using magnetic field measurements from below the …

[HTML][HTML] Drivers of rapid geomagnetic variations at high latitudes

L Juusola, A Viljanen, AP Dimmock… - Annales …, 2023 - angeo.copernicus.org
We have examined the most intense external (magnetospheric and ionospheric) and
internal (induced)| d H/dt|(amplitude of the 10 s time derivative of the horizontal geomagnetic …

Comparing three approaches to the inducing source setting for the ground electromagnetic field modeling due to space weather events

E Marshalko, M Kruglyakov, A Kuvshinov… - Space …, 2021 - Wiley Online Library
Ground‐based technological systems, such as power grids, can be affected by
geomagnetically induced currents (GIC) during geomagnetic storms and magnetospheric …

Statistical temporal variations in the auroral electrojet estimated with ground magnetometers in Fennoscandia

S Walker, K Laundal, J Reistad, A Ohma… - Space …, 2023 - Wiley Online Library
We present the implementation of an improved technique to coherently model the high‐
latitude ionospheric equivalent current. Using a fixed selection of 20 ground magnetometers …

A quantitative analysis of the uncertainties on reconnection electric field estimates using ionospheric measurements

S Gasparini, SM Hatch, JP Reistad… - Journal of …, 2024 - Wiley Online Library
Calculating the magnetic flux transfer across the open‐closed boundary (OCB) per unit time
and distance—the reconnection electric field—is an important means of remotely monitoring …