Results 21 to 30 of about 8,580 (308)

Auroral electrojet dynamics during magnetic storms, connection with plasma precipitation and large-scale structure of the magnetospheric magnetic field [PDF]

open access: yesAnnales Geophysicae, 1999
Effect of the equatorward shift of the eastward and westward electrojets during magnetic storms main phase is analyzed based on the meridional chains of magnetic observatories EISCAT and IMAGE and several Russian observatories (geomagnetic longitude ...
Y. I. Feldstein   +6 more
doaj   +1 more source

Storm-time electron flux precipitation in the inner radiation belt caused by wave-particle interactions [PDF]

open access: yesAnnales Geophysicae, 2009
It has been believed that electrons in the inner belt do not show the dynamical variation during magnetic storms except for great magnetic storms. However, Tadokoro et al.
H. Tadokoro   +5 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

Magnetic properties of inner magnetosphere during geomagnetic storms inferred from a tsy ganenko magnetic field model [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2004
In this paper we report some properties of inner magnetospheric structure inferred from the T01s code, one of the latest magnetospheric models by Tsyganenko.
D.Y. Lee   +3 more
doaj   +1 more source

Geomagnetic Storms and Related Solar Phenomena (a. Precipitating Particles and Auroras) (Proceedings of the Second Symposium on Coordinated Observations of the Ionosphere and Magnetosphere in the Polar Regions : Part I)

open access: yesAntarctic Record, 1980
This is an attempt to identify the causes of geomagnetic storms which occurred during a year and a half from January 1977 to June 1978. The assignment of geomagnetic storm causation to appropriate coronal holes or solar flares has been made by ...
Katsuhide MARUHASHI, Takahiroo ISHI
doaj   +1 more source

Unexpected space weather causing the reentry of 38 Starlink satellites in February 2022

open access: yesJournal of Space Weather and Space Climate, 2022
The accidental reentry of 38 Starlink satellites occurred in early February 2022, associated with the occurrence of moderate magnetic storms. A poorly understood structure of Coronal Mass Ejections (CMEs) caused the magnetic storms at unexpected timing ...
Kataoka Ryuho   +6 more
doaj   +1 more source

Dst Prediction Based on Solar Wind Parameters [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2009
We reevaluate the Burton equation (Burton et al. 1975) of predicting Dst index using high quality hourly solar wind data supplied by the ACE satellite for the period from 1998 to 2006.
Yoon-Kyung Park, Byung-Ho Ahn
doaj   +1 more source

Transequatorial magnetic flux loops on the sun: a possible new source of geomagnetic storms

open access: yesAntarctic Record, 2009
Following the traditional way of expression, geomagnetic storms have been classified into three types; flare-type Sc storms, CH-type Sg storms, and DB-type Sc storms (Sc:sudden commencement;CH:coronal hole;g:gradual;DB:disparition brusque).We have ...
Takao Saito   +5 more
doaj   +1 more source

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