Results 71 to 80 of about 614 (179)
The auroral oval, the auroral substorm, and their relations with the internal structure of the magnetosphere [PDF]
Planetary and Space Science, 1966 Auroral oval, auroral substorm and relations with internal magnetospheric structure during growth and decay of ring current and neutral sheet ...
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Auroral oval as a beautiful but outdated paradigm [PDF]
Solnechno-Zemnaya Fizika, 2015 Being an important region of the polar ionosphere, the auroral oval is considered in many studies on the disturbed magnetosphere. The oval seems to be thoroughly known to all researchers, but there is evidence of misunderstanding in some papers, so it is time to review this matter.
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Space WeatherAs an effect of solar‐terrestrial activity, the aurora has always been a focus of substorm research. The expansion of the aurora is one of the important characteristics during substorms, which could be directly reflected by the change of auroral oval ...
Jia‐Nan Jiang +6 more
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Journal of Space Weather and Space Climate, 2019 Some recent studies point out that currents related to the auroral oval, electrojets and field aligned currents (FACs), are serious candidates for the mechanism of the intense mid-latitude magnetic storms.
Valach Fridrich +3 more
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Localized aurora beyond the auroral oval [PDF]
Reviews of Geophysics, 2007 Aurora is the result of the interaction between precipitating energetic electrons and protons with the upper atmosphere. Viewed from space, it generally occurs in continuous and diffuse ovals of light around the geomagnetic poles. Additionally, there are localized regions of aurora that are unrelated to the ovals and exhibit different morphological ...
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A quarter of a century with the auroral oval
Eos, Transactions American Geophysical Union, 1986 A quarter of a century has elapsed since the concept of auroral oval was introduced into geophysics, and there has been a recent revival of interest among scientists in the evolution throughout the last 3 centuries of our knowledge of the global distribution of auroras. The auroral oval is considered to be a high‐latitude region of the upper atmosphere
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Solar-Terrestrial PhysicsWe study the relationship between space weather disturbances and spatial distribution of failures in railway automatics at segments of Northern and October railways in 2001–2006.
Sakharov Y. A. +4 more
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Contributions to Geophysics and GeodesyFrom 1893 to 1905, the values of the geomagnetic field recorded three times a day are available from the Ógyalla magnetic observatory. We introduce these unique records, and at the same time, we provide an analysis of three noteworthy magnetic storms ...
Fridrich VALACH +3 more
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Which latitudes of the Russian Federation may be affected by extreme magnetic storms?
Solar-Terrestrial PhysicsIf we consider the auroral oval as an indicator of the electrojet position, the information about the position of its equatorial boundary allows us to predict the latitudes at which the most intense geomagnetic variations can be observed.
Savelieva Natalia +2 more
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Frontiers in Astronomy and Space SciencesPoleward Boundary Intensifications (PBIs) are transient auroral brightenings at the poleward edge of the auroral oval that serve as optical tracers of nightside plasma transport and energy deposition.
Yu-Lin Fang +14 more
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