The Forbush Effect and the Geomagnetic Storm in April 1990

The Forbush Effect and the Geomagnetic Storm in April 1990

The Forbush effect and geomagnetic storm in April 1990 are studied using data from ground-based measurements of cosmic rays on the worldwide network of stations. Variations in spectra, the anisotropy of cosmic rays, and changes in the planetary system of geomagnetic cutoff rigidities are calculated....

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Veröffentlicht in:Bulletin of the Russian Academy of Sciences. Physics 2021-11, Vol.85 (11), p.1284-1287
Hauptverfasser: Kravtsova, M. V., Olemskoy, S. V., Sdobnov, V. E.
Format: Artikel
Sprache:eng
Schlagworte:
Anisotropy
Cosmic rays
Geomagnetism
Hadrons
Heavy Ions
Magnetic storms
Nuclear Physics
Physics
Physics and Astronomy
Planetary systems
Ring currents
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Beschreibung
Zusammenfassung:The Forbush effect and geomagnetic storm in April 1990 are studied using data from ground-based measurements of cosmic rays on the worldwide network of stations. Variations in spectra, the anisotropy of cosmic rays, and changes in the planetary system of geomagnetic cutoff rigidities are calculated. The distance to the subsolar point, the radius of the ring current, and the ring current’s contribution to the D st index during the investigated events are determined.
ISSN:1062-8738
1934-9432
DOI:10.3103/S1062873821110174