Results 1 to 10 of about 1,864,755 (243)

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

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

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

Supersubstorms during strong magnetic storm on 7 September 2017 [PDF]

open access: yesE3S Web of Conferences, 2019
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
doaj   +1 more source

Analyzing solar, cosmic, and geophysical events in September 2017 using SHIСRA SB RAS complex observations

open access: yesSolar-Terrestrial Physics, 2019
We report the results of monitoring of cosmic rays and geomagnetic field along 210 magnetic meridians in Yakutia in the first half of September 2017.
Starodubtsev S.A.   +7 more
doaj   +1 more source

Estimating Satellite Orbital Drag During Historical Magnetic Superstorms

open access: yesSpace Weather, 2020
Understanding extreme space weather events is of paramount importance in efforts to protect technological systems in space and on the ground. Particularly in the thermosphere, the subsequent extreme magnetic storms can pose serious threats to low Earth ...
Denny M. Oliveira   +3 more
doaj   +1 more source

Variation of Magnetic Field (By , Bz) Polarity and Statistical Analysis of Solar Wind Parameters during the Magnetic Storm Period [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2011
It is generally believed that the occurrence of a magnetic storm depends upon the solar wind conditions, particularly the southward interplanetary magnetic field (IMF) component. To understand the relationship between solar wind parameters and magnetic
Ga-Hee Moon
doaj   +1 more source

IONOSPHERIC STORM OF NOVEMBER 13–14, 2012: SIMULATION RESULTS OF THERMAL AND DYNAMIC EFFECTS

open access: yesRadio Physics and Radio Astronomy, 2014
The simulation results of the effects of the Earth upper atmosphere thermal and dynamic conditions disturbances during the strong magnetic storm of November 13–14, 2012 are presented.
I. F. Domnin   +3 more
doaj   +1 more source

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