Results 41 to 50 of about 320,647 (167)
Earth, Planets and SpaceThe geomagnetic field, as observed at the Earth’s surface or LEO satellite altitudes (between 300 km and 800 km), is the combination of signals generated by various internal and external sources. The internal sources are mainly associated with the liquid
Yalei Shi +2 more
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Noon ionospheric signatures of a sudden commencement following a solar wind pressure pulse [PDF]
Annales Geophysicae, 2002 Using experimental data from the Cutlass Super-DARN HF radars and from a subset of ground magnetometers of the IMAGE Scandinavian chain, the response of the ionosphere in the noon sector to a solar wind pressure increase is studied. The emphasis is
A. Vontrat-Reberac +5 more
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Storm time field-aligned currents and magnetosphere-ionosphere coupling process
地球与行星物理论评, 2022 Field aligned currents (FACs), also known as Birkland current, are flowing along the magnetic field line between the ionosphere and magnetosphere. They play an essential role in transferring mass, energy, and momentum from the magnetosphere to the ...
Hui Wang
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Neutral Wind Control of Jupiter's Non‐Auroral Ionosphere
Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.Abstract We use JAMMIES (JAMMIES is Another Model Making Ionospheric EStimates), a new model of Jupiter's non‐auroral ionosphere, to demonstrate that neutral wind‐driven field‐aligned plasma transport can explain decades of measurements inconsistent with a solar‐dominated ionosphere. Two observations highlight these inconsistencies: a minimum in H3+ ${\
K. Mohamed +7 more
wiley +1 more source
Investigation of energy transport and thermospheric upwelling during quiet magnetospheric and ionospheric conditions from the studies of low- and middle-altitude cusp [PDF]
Annales Geophysicae, 2015 We investigate energy fluxes and small, kilometre-scale Birkeland currents in the magnetospheric cusp at a 1–3 Earth radii altitude and in the ionosphere using satellites when they were, according to the Tsyganenko model, in magnetic conjunction ...
T. Živković +5 more
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Association of Picket‐Fence With Auroral Continuum Emissions
Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.Abstract We present observations of aurora‐like “picket‐fence” emissions occurring simultaneously with broad‐band auroral continuum emission structures. The continuum structures exhibit spectral properties similar to the Strong Thermal Emission Velocity Enhancement (STEVE), but appear at higher latitudes, alongside the aurora.
J. Houghton +5 more
wiley +1 more source
Magnetic Reconnection Driven by the Impact of a Magnetosheath High‐Speed Jet
Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.Abstract High‐speed jets (HSJs) are transient structures in the magnetosheath characterized by enhanced dynamic pressure. While recent studies report that HSJs trigger magnetic reconnection at the magnetopause, whether they can directly drive reconnection within the magnetosheath remains an open question.
Jiuqi Ma +8 more
wiley +1 more source
The magnetosphere-ionosphere observatory (MIO) mission concept
Frontiers in Astronomy and Space Sciences, 2022 MIO (Magnetosphere-Ionosphere Observatory) is designed to definitively fix a cause-and-effect problem: In the nightside magnetosphere-ionosphere system we don’t know what is connected to what.
Joseph E. Borovsky +2 more
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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
wiley +1 more source
Geomagnetic Disturbances Due To Neutral‐Wind‐Driven Ionospheric Currents
Space WeatherPrevious simulation efforts on geomagnetic disturbances (GMDs) and geomagnetically induced currents (GICs) mostly rely on global magnetohydrodynamics models, which explicitly calculate the magnetospheric currents and carry certain assumptions about the ...
Cheng Sheng +3 more
doaj +1 more source