Results 51 to 60 of about 7,217 (205)
Frontiers in Physics, 2021 Data mining (DM) has ushered in a new era of empirical magnetic reconstructions of the magnetosphere via application of the k-nearest neighbors (kNN) method.
Grant K. Stephens, Mikhail I. Sitnov
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Eos, Transactions American Geophysical Union, 1968 The magnetospheric substorm is perhaps the most widely known yet most poorly understood facet of magnetospheric disturbances. It is generally agreed that the substorm results from an explosive conversion of magnetic energy generated by the interaction between the solar wind and the magnetosphere.
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Journal of Geophysical Research: Space Physics, 1999 The rapid, Alfvénic timescale of “onset” has been an enigma ever since magnetospheric substorms were first identified. Investigators have proposed a variety of trigger mechanisms in an effort to account for the abrupt reconfiguration observed. No one mechanism clearly stands out as the single cause of substorms.
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VLF, magnetic bay and Pi2 substorm signatures at auroral and midlatitude ground stations [PDF]
, 2002 A superposed epoch analysis of 100–300 substorms is performed to determine the median size and shape of the substorm-associated VLF chorus, magnetic bay, and Pi2 pulsation burst observed at the near-auroral Halley research station, Antarctica, and at the
Freeman, M.P. +3 more
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Eos, Transactions American Geophysical Union, 1989 The substorm is a thing obscure/ We cannot make it out for sure/ But physicists with lots of nerve/ Fill in details they can't observe/ They see it in their own grand visions/ Of tearing modes with no collisions/ That squeeze away the plasma sheet/ To make opposing fluxes meet/ And in their merging, oh so swift/ Great plasmoids are cut adrift/ Or else ...
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Geophysical Research LettersThe sequence of events associated with the triggering of energy release during substorm expansion phase onset is still not well‐understood. Oberhagemann and Mann (2020b, https://doi.org/10.1029/2019gl085271) proposed a new substorm onset mechanism, where
S. S. Babu +6 more
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Stormtime Energetics: Energy Transport Across the Magnetopause in a Global MHD Simulation
Frontiers in Astronomy and Space Sciences, 2021 Coupling between the solar wind and magnetosphere can be expressed in terms of energy transfer through the separating boundary known as the magnetopause.
Austin Brenner +5 more
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Altitude Dependence of Quasi‐Static Potential Drop: The Effect of Ionospheric Protons
Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.Abstract Using an improved kinetic model that incorporates cold ionospheric protons and oxygen ions, we investigate the factors controlling the altitude range of the auroral acceleration region (AAR). In this model, parallel electric fields are generated via Dispersive Alfven Wave‐ Modified electron Acoustic Wave (DAW‐MEAW) coupling and sustained by ...
Run Shi +4 more
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STUDY ON THE PARTICLE INJECTIONS DURING HILDCAA INTERVALS [PDF]
Journal of Astronomy and Space Sciences, 2007 The relation between substorm occurrences and HILDCAA events has been an issue. We have studied the association of particle injections with substorm onsets during HILDCAA intervals for the first half of year 2003.
Hee-Jeong Kim
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Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.Abstract Microbursts are thought to be a key contributor to radiation belt electron loss, with chorus waves considered a primary driver of this precipitation. However, the conditions under which chorus waves produce MeV electron loss remain poorly constrained.
Jorge Romero‐Minaya +3 more
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