Low Frequency Oscillation Observed in the Ionosphere Around the Substorm Onsets
Geophysical Research LettersThree substorm events in which Defense Meteorological Satellite Program (DMSP) spacecraft are geomagnetically co‐located with substorm onset locations in IMAGE far ultraviolet auroral images are analyzed.
Simon Wing +4 more
doaj +2 more sources
, 2019 A geometric wedge model of the near-earth nightside plasma sheet is used to derive a wave equation for low frequency shear flow-interchange waves which transmit $\vec{E} \times \vec{B}$ sheared zonal flows along magnetic flux tubes towards the ionosphere.
Jason Derr, W. Horton, R. A. Wolf
openalex +3 more sources
Permian Large Igneous Provinces and Their Paleoenvironmental Effects
Geophysical Monograph Series, Page 417-434., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jun Chen, Yi‐Gang Xu
wiley +1 more source
The electric field response to the growth phase and expansion phase onset of a small isolated substorm [PDF]
, 1997 International audienceWe 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 ...
Freeman, M.P. +4 more
core +7 more sources
Statistical properties of substorms during different storm and solar cycle phases [PDF]
Annales Geophysicae, 2013 Substorm properties during different storm phases have been studied using an automated recognition of substorm and storm phases in the auroral electrojet (AL) and ring current (Dst) index data from 1995–2009.
N. Partamies +4 more
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A diagnosis of the plasma waves responsible for the explosive energy release of substorm onset. [PDF]
Nat Commun, 2018 Kalmoni NME +7 more
europepmc +3 more sources
Dual HF radar study of the subauroral polarization stream [PDF]
Annales Geophysicae, 2007 The dual HF radars comprising the Tasman International Geophysical Environment Radar (TIGER) system often observe localized high-velocity F-region plasma flows (≥1500 m/s) in the midnight sector (20:00–02:00 MLT) at magnetic latitudes as low as ...
R. A. Makarevich, P. L. Dyson
doaj +1 more source
The high latitude convection response to an interval of substorm activity [PDF]
Annales Geophysicae, 1996 On 17 March 1991, five clear substorm onsets/intensifications took place within a three hour interval. During this interval ground-based data from the EISCAT incoherent scatter radar, a digital CCD all sky camera, and an extensive array of ...
T. K. Yeoman, M. Pinnock
doaj +1 more source
Association of cusp energetic ions with geomagnetic storms and substorms [PDF]
Annales Geophysicae, 2012 Energetic ions observed in the cusp have been explained as a result of processes within the magnetosphere, but also proposed as a driver of some of those same processes. This study assesses potential connections between energetic ions observed in the
J. T. Niehof +3 more
doaj +1 more source
Prelude to THEMIS tail conjunction study [PDF]
Annales Geophysicae, 2007 A close conjunction of several satellites (LANL, GOES, Polar, Geotail, and Cluster) distributed from the geostationary altitude to about 16 RE downstream in the tail occurred during substorm activity as indicated by global auroral imaging and ground ...
A. T. Y. Lui +10 more
doaj +1 more source