Results 11 to 20 of about 7,217 (205)
Alternating bursts of low energy ions and electrons near the substorm onset [PDF]
Annales Geophysicae, 2006 The substorm associated behavior of the low energy particles (30 eV–28.5 keV) near the earthward edge of the plasma sheet is examined using data from CRRES during the late growth and early expansion phases of a substorm on 12 March ...
T. V. Kozelova +4 more
doaj +3 more sources
A multipoint study of a substorm occurring on 7 December, 1992, and its theoretical implications [PDF]
Annales Geophysicae, 1999 On 7 December 1992, a moderate substorm was observed by a variety of satellites and ground-based instruments. Ionospheric flows were monitored near dusk by the Goose Bay HF radar and near midnight by the EISCAT radar.
N. J. Fox +14 more
doaj +3 more sources
Energization of the Ring Current by Substorms. [PDF]
J Geophys Res Space Phys, 2018 AbstractThe substorm process releases large amounts of energy into the magnetospheric system, although where the energy is transferred to and how it is partitioned remains an open question. In this study, we address whether the substorm process contributes a significant amount of energy to the ring current. The ring current is a highly variable region,
Sandhu JK +8 more
europepmc +9 more sources
Stormtime substorm onsets: occurrence and flow channel triggering [PDF]
Earth, Planets and Space, 2018 Bright auroral emissions during geomagnetic storms provide a good opportunity for testing the proposal that substorm onset is frequently triggered by plasma sheet flow bursts that are manifested in the ionosphere as auroral streamers.
Larry R. Lyons +5 more
doaj +2 more sources
The electric field response to the growth phase and expansion phase onset of a small isolated substorm [PDF]
Annales Geophysicae, 1997 We capitalise on the very large field of view of the Halley HF radar to provide a comprehensive description of the electric field response to the substorm growth phase and expansion phase onset of a relatively simple isolated substorm ( |AL| < 250 nT)
R. V. Lewis +4 more
doaj +3 more sources
Near-Earth substorm features from multiple satellite observations [PDF]
, 2008 We investigate a substorm on 3 October 2004 during which 11 satellites were located in near-Earth magnetotail (XGSM > −10 RE). Double Star 1 (TC-1), Cluster, and LANL-97 satellites were closely aligned in the dawn-dusk direction (
Rème, H. +14 more
core +5 more sources
Probabilistic modelling of substorm occurrences with an echo state network [PDF]
Annales Geophysicae, 2023 The relationship between solar-wind conditions and substorm activity is modelled with an approach based on an echo state network. Substorms are a fundamental physical phenomenon in the magnetosphere–ionosphere system, but the deterministic prediction of ...
S. Nakano +7 more
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Electron precipitation characteristics during isolated, compound, and multi-night substorm events [PDF]
Annales Geophysicae, 2021 A set of 24 isolated, 46 compound, and 36 multi-night substorm events from the years 2008–2013 have been analysed in this study. Isolated substorm events are defined as single expansion–recovery phase pairs, compound substorms consist of multiple phase ...
N. Partamies +8 more
doaj +1 more source
Relation of the auroral substorm to the substorm current wedge [PDF]
Geoscience Letters, 2016 The auroral substorm is an organized sequence of events seen in the aurora near midnight. It is a manifestation of the magnetospheric substorm which is a disturbance of the magnetosphere brought about by the solar wind transfer of magnetic flux from the dayside to the tail lobes and its return through the plasma sheet to the dayside.
McPherron, Robert L., Chu, Xiangning
openaire +2 more sources
Earth and Planetary Physics, 2021 With conjunction observations of electromagnetic fields and plasma from Time History of Events and Macroscale Interactions during Substorm (THEMIS) in the near-Earth magnetotail, we investigate the spatial and temporal properties of substorm ...
SuPing Duan +3 more
doaj +1 more source