Results 61 to 70 of about 2,889 (155)

ML‐EPM: A Machine Learning Model of Auroral Electron Precipitation Spectra Using Long‐Term DMSP Observations

Space Weather, Volume 24, Issue 8, August 2026.
Abstract Auroral precipitation plays a key role in coupling the Magnetosphere–Ionosphere–Thermosphere system by modifying ionospheric conductance, currents, atmospheric heating, and upper‐atmospheric dynamics. Leveraging 17 years of electron spectrum data from the Defense Meteorological Satellite Program (DMSP), we developed a Machine Learning‐based ...
V. Sai Gowtam, Hyunju Connor
wiley   +1 more source

Observations of the Electrodynamical Ties Between Sporadic E and the Plasmasphere

Earth and Space Science, 2020
A joint investigation was conducted of coherent backscatter radar observations of irregularities within the E and F regions and tomographic mapping of corotating plasmaspheric irregularities (CPIs) near Japan and the American northwest from June 2018 ...
J. F. Helmboldt
doaj   +1 more source

Localization and Classification of Gravity Wave Events From VIIRS Day/Night Band Satellite Imagery Using Machine Learning Techniques

Earth and Space Science, Volume 13, Issue 8, August 2026.
Abstract Gravity waves in the upper mesosphere produce diverse spatial patterns in nighttime airglow, but their global morphology has been difficult to characterize because manual identification is impractical for the massive satellite image archive. We developed a machine learning framework to detect and classify gravity wave events in imagery from ...
Yuta Hozumi, Jia Yue, Seraj Al Mahmud Mostafa, Chenxi Wang, Jianwu Wang, Sanjay Purushotham, Steven D. Miller   +6 more
wiley   +1 more source

Investigation of the single layer model of GPS ionospheric data processing using IRI-90 and the attached diffusive equilibrium model of plasmaspheric electron density

Annals of Geophysics, 1997
The single layer model of GPS ionospheric data processing is compared with the International Reference Ionosphere í 1990 and the attached Diffusive Equilibrium model of Plasmasphere (IRI-90+DEP) which proved to be a good supplement to GPS data processing.
L. Bànyai
doaj   +1 more source

Longitudinal Variation of Ionospheric Irregularities and Response of the Ionosphere During 10–13 May and 10–13 October 2024 Geomagnetic Storms

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract We examine the response of the ionosphere to the 10–13 May 2024 and 10–13 October 2024 geomagnetic storms, the two recent great geomagnetic storms of solar cycle 25. We identified the occurrence of ionospheric irregularities during the two geomagnetic storms.
Valence Habyarimana, Mark B. Moldwin, John Bosco Habarulema, Sharon Aol, Jean Claude Uwamahoro, Teshome Dugassa, Daniel Okoh, Solomon Otoo Lomotey   +7 more
wiley   +1 more source

Effects of the Geomagnetic Superstorms of 10–11 May 2024 and 7–11 October 2024 on the Ionosphere and Plasmasphere

Atmosphere
On 10 May 2024 at 17 h:07 UTC, the simultaneous arrival of several solar coronal mass ejections (CMEs) generated the strongest geomagnetic storm of the last twenty years, with a minimum Dst = −412 nT, usually referred to as the Mother’s Day event.
Viviane Pierrard, Tobias G. W. Verhulst, Jean-Marie Chevalier, Nicolas Bergeot, Alexandre Winant   +4 more
doaj   +1 more source

Spatial gradients in the plasmasphere from Cluster [PDF]

, 2006
International audienceThe Cluster mission allows the study of the plasmasphere with four-point measurements, including its overall density distribution, plasmaspheric plumes close to the plasmapause, and density irregularities inside the plasmasphere ...
Dunlop, M., W, Darrouzet, F., de Keyser, J., Lemaire, J.F., Décréau, Pierrette, M E   +4 more
core   +2 more sources

The dynamics of the plasmasphere: Recent results

, 2016
The purpose of this paper is to review recent advances in the study of the Earth's plasmasphere. Most of these have been obtained with data from two missions launched in 2000, Cluster and IMAGE.
Darrouzet, F., De Keyser, J.
core   +1 more source

A new model for plasmapause locations derived from IMAGE RPI and Van Allen Probes data

Journal of Space Weather and Space Climate
The outer boundary of the plasmasphere, the plasmapause, is characterized by a sharp electron density gradient that changes under varying space weather conditions.
Banyś Daniela, Feltens Joachim, Jakowski Norbert, Berdermann Jens, Hoque Mainul M., Zandbergen René, Enderle Werner   +6 more
doaj   +1 more source

Analysis of the IMAGE RPI electron density data and CHAMP plasmasphere electron density reconstructions with focus on plasmasphere modelling

, 2016
The electron density of the topside ionosphere and the plasmasphere contributes essentially to the overall Total Electron Content (TEC) budget affecting Global Navigation Satellite Systems (GNSS) signals.
Reinisch, B.W., Galkin, I., B. Reinisch, Zandbergen, R., J. Feltens, Feltens, J., N. Jakowski, Gerzen, Tatjana, Jakowski, Norbert, T. Gerzen, I. Galkin, R. Zandbergen   +11 more
core   +1 more source