Results 21 to 30 of about 1,734,838 (226)
Seasonal and Latitudinal Variations of the F2-Layer during Magnetic Storms [PDF]
Journal of Astronomy and Space Sciences, 2013 To identify seasonal and latitudinal variations of F2 layer during magnetic storm, we examine the change of daily averages of foF2 observed at Kokubunji and Hobart during high (2000~2002) and low (2006~2008) solar activity intervals.
Yoon-Kyung Park +2 more
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The Astrophysical Journal, 2023 We review observations of solar activity, geomagnetic variation, and auroral visibility for the extreme geomagnetic storm on 1872 February 4. The extreme storm (referred to here as the Chapman–Silverman storm) apparently originated from a complex active ...
Hisashi Hayakawa +21 more
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Statistical Characterization of the Magnetic Field in Space during Magnetic Storms
Atmosphere, 2022 Magnetic storms are an important type of space weather and are usually caused by large streams of charged elementary particles (ions, for example) generated during solar wind production. The occurrence of magnetic storms can pose a threat to the internal
Shi-Han Wang +6 more
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Probability of occurrence of planetary ionosphere storms associated with the magnetosphere disturbance storm time events [PDF]
Advances in Radio Science, 2014 The ionospheric W index allows to distinguish state of the ionosphere and plasmasphere from quiet conditions (W = 0 or ±1) to intense storm (W = ±4) ranging the plasma density enhancements (positive phase) or plasma density depletions (negative phase ...
T. L. Gulyaeva +2 more
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Magnetospheric preconditioning under northward IMF: evidence from the study of coronal mass ejection and corotating interaction region geoeffectiveness [PDF]
, 2006 Motivated by recent observations and simulations of the formation of a cold and dense plasma sheet in the tail of the magnetosphere under northward interplanetary magnetic field (IMF) and of the direct influence of the plasma sheet density on the ring ...
Pulkkinen, T. I. +4 more
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IONOSPHERIC EFFECTS OF GEOSPACE STORM OF NOVEMBER 13–14, 2012
Radio Physics and Radio Astronomy, 2014 The results of studying the F region and topside ionosphere response to the strong magnetic storm of November 13–14, 2012 (Kp max=6+) are presented. The observations are carried out by the Kharkiv incoherent scatter radar.
I. F. Domnin +2 more
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Fractals and magnetic storm [PDF]
Annales Geophysicae, 1996 Fractal theory is applied in a quantitative analysis of geomagnetic storms. Fractal dimensions (D) of the attractor for storm data from the Beijing observatory (40.0°N, 116.2°E) using several time intervals are calculated.
T.-W. Wang
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Вісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка, 2022 Relevance. Magnetic storms have been studied for a long time, with particular attention being paid to unique storms, which occur only 1 or 3 times per solar cycle. The occurrence rates of moderate storms are much higher.
L. F. Chernogor +6 more
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The driving mechanisms of particle precipitation during the moderate geomagnetic storm of 7 January 2005 [PDF]
, 2007 International audienceThe arrival of an interplanetary coronal mass ejection (ICME) triggered a sudden storm commencement (SSC) at ~09:22 UT on the 7 January 2005. The ICME followed a quiet period in the solar wind and interplanetary magnetic field (IMF).
N. Longden +7 more
core +2 more sources
Latitudinal profile of the ionospheric disturbance dynamo magnetic signature: comparison with the DP2 magnetic disturbance [PDF]
Annales Geophysicae, 2009 During magnetic storms, the auroral electrojets intensification affects the thermospheric circulation on a global scale. This process which leads to electric field and current disturbance at middle and low latitudes, on the quiet day after the end of ...
K. Z. Zaka +7 more
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