Changes of the first Schumann resonance frequency during relativistic solar proton precipitation in the 6 November 1997 event
| Autor: | Ye. P. Maltsev, A. N. Vasiljev, E. V. Vashenyuk, V. C. Roldugin |
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| Přispěvatelé: | Polar Geophysical Institute of Russian Academy of Sciences (PGI), Russian Academy of Sciences [Moscow] (RAS), EGU, Publication |
| Předmět: |
Atmospheric Science
Astrophysics::High Energy Astrophysical Phenomena [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Flux Dielectric Electromagnetic radiation Physics::Geophysics Relativistic particle Nuclear physics Nuclear magnetic resonance Earth and Planetary Sciences (miscellaneous) Precipitation lcsh:Science [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Physics Neutron monitor Schumann resonances [SDU.OCEAN] Sciences of the Universe [physics]/Ocean Atmosphere lcsh:QC801-809 Geology Astronomy and Astrophysics lcsh:QC1-999 lcsh:Geophysics. Cosmic physics Space and Planetary Science Physics::Space Physics [SDU.STU] Sciences of the Universe [physics]/Earth Sciences lcsh:Q Event (particle physics) lcsh:Physics |
| Zdroj: | Scopus-Elsevier Annales Geophysicae, Vol 17, Iss 10, Pp 1293-1297 (0000) Annales Geophysicae Annales Geophysicae, European Geosciences Union, 1999, 17 (10), pp.1293-1297 Annales Geophysicae, Vol 17, Pp 1293-1297 (1999) |
| ISSN: | 1432-0576 0992-7689 |
| Popis: | The variations of the first mode of Schumann resonance are analyzed using data from Kola peninsula stations during the solar proton event of 6 November 1997. On this day the intensive flux of energetic protons on GOES-8 and the 10% increase of the count rate of the neutron monitor in Apatity between 1220 and 2000 UT were preceded by a solar X-ray burst at 1155 UT. This burst was accompanied by a simultaneous increase of the Schumann frequency by 3.5%, and the relativistic proton flux increase was accompanied by 1% frequency decrease. These effects are explained by changes of the height and dielectric permeability of the Earth-ionosphere cavity.Key words. Ionosphere (ionospheric disturbances; solar radiation and cosmic ray effects) · Radio science (ionospheric propagation) |
| Databáze: | OpenAIRE |
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