Results 11 to 20 of about 17,499 (261)

Probability of occurrence of planetary ionosphere storms associated with the magnetosphere disturbance storm time events [PDF]

open access: yesAdvances 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
doaj   +1 more source

IONOSPHERIC EFFECTS OF GEOSPACE STORM OF NOVEMBER 13–14, 2012

open access: yesRadio 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
doaj   +1 more source

Fractals and magnetic storm [PDF]

open access: yesAnnales 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
doaj   +1 more source

Spectral content of fluctuations in the geomagnetic field during the course of March 21–23, 2017 geospace storms

open access: yesВісник 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
doaj   +1 more source

Latitudinal profile of the ionospheric disturbance dynamo magnetic signature: comparison with the DP2 magnetic disturbance [PDF]

open access: yesAnnales 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
doaj   +1 more source

The Energy of Magnetic Storms [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1918
Summary The extra magnetic energy present in the magnetosphere during a magnetic storm is shown to be the same as if the disturbing field existed without the main field of the Earth: that is, the “joint” energy of the two fields is zero. The disturbance field energy is considered for both the first and the main phase of a storm, on the basis of ...
openaire   +3 more sources

A watercolor painting of northern lights seen above Japan on 11 February 1958

open access: yesJournal of Space Weather and Space Climate, 2019
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
doaj   +1 more source

The extreme solar storm of May 1921: observations and a complex topological model [PDF]

open access: yesAnnales Geophysicae, 2015
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
doaj   +1 more source

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