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SOME details of the magnetic variations during a period including the great magnetic storm of September 25 may be of interest to the readers of NATURE.
openaire +3 more sources
IONOSPHERIC EFFECTS OF GEOSPACE STORM OF NOVEMBER 13–14, 2012
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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Probability of occurrence of planetary ionosphere storms associated with the magnetosphere disturbance storm time events [PDF]
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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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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A Great Space Weather Event in February 1730 [PDF]
Aims. Historical records provide evidence of extreme magnetic storms with equatorward auroral extensions before the epoch of systematic magnetic observations. One significant magnetic storm occurred on February 15, 1730. We scale this magnetic storm with
Carrasco, Víctor M. S. +11 more
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Latitudinal profile of the ionospheric disturbance dynamo magnetic signature: comparison with the DP2 magnetic disturbance [PDF]
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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The extreme solar storm of May 1921: observations and a complex topological model [PDF]
A complex solid torus model was developed in order to be able to study an extreme solar storm, the so-called "Great Storm" or "New York Railroad Storm" of May 1921, when neither high spatial and time resolution magnetic field measurements, solar
H. Lundstedt, T. Persson, V. Andersson
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A watercolor painting of northern lights seen above Japan on 11 February 1958
A 61 years old watercolor painting of red aurora was recently provided from a Japanese citizen, and it contributed to understand the detailed time evolution around the peak time of the large magnetic storm on 11 February 1958.
Kataoka Ryuho, Kazama Shigeru
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Supersubstorms during strong magnetic storm on 7 September 2017 [PDF]
We analyzed the appearance of two supersubstorms observed during storm on September 07, 2017. Supersubstorms (SSS) are called substorms with SML index < - 2500 nT.
Despirak Irina +4 more
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