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Asymmetry in seasonal variations of geomagnetic activity
journal contribution
posted on 2023-06-07, 20:05 authored by Natalia BeloffNatalia Beloff, E O FalayiSeasonal variations in geomagnetic activity were studied for the period of 1990-2007 using Dst and AE indices. Over 150 events characterised by the increase in geomagnetic activity of varying strength (from -90nT up to -1800 nT) were statistically analysed. Although Russell -McPherron effect plays major role in the equinoctial asymmetry in the geomagnetic activity, other effects may also take place. During this study we found a statistically significant October-November peak in geomagnetic activity for Northern Hemisphere, which is sufficiently larger than March- April peak. Several hypotheses for the cause of such effect are discussed.
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52Volume
88Page range
521+Department affiliated with
- Informatics Publications
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