Cosmic Rays in the System of Solar-Terrestrial Relations (Reviewстатья
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Дата последнего поиска статьи во внешних источниках: 27 мая 2015 г.
Аннотация:Abstract
In this brief review we discuss a number of geophysical effects of solar energetic particles (SEPs), or solar cosmic rays (SCR). We concentrate mainly on the observational evidence and proposed mechanisms of some expected effects and/or poor-studied phenomena discovered within 3 last decades, in particular, depletion of the ozone layer; perturbations in the global electric current; variations of the Schumann resonance parameters; effects on the winter storm vorticity; change of the atmospheric transparency; and production of nitrates. Some “archaeological” data on SCR fluxes in the past and upper limit of total energy induced by SEPs are also discussed. Due attention is paid to the periodicities in the solar particle fluxes. Actually, many solar, heliospheric and terrestrial parameters changing generally in phase with the solar activity are subjected to a temporary depression close to the solar maximum (“Gnevyshev Gap”). Similar gap has been found recently in the yearly numbers of the >10 MeV proton events. All above-mentioned findings are evidently of great importance in the studies of general proton emissivity of the Sun and long-term trends in the behaviour of solar magnetic fields. In addition, those data can be very helpful for elaboration the methods for prediction the radiation conditions in space and for estimation of the SEPs contribution into solar effects on the geosphere, their relative role in the formation of terrestrial weather and climate, in the problem of solar-terrestrial relations (STR) in the whole.