Seasonal variations in the occurrence of geomagnetic storms
Item
Title (Dublin Core)
Seasonal variations in the occurrence of geomagnetic storms
Description (Dublin Core)
Seasonal variations in the onset of magnetic storms are investigated. For the purposes of this study storms have been defined as events in which <i>Dst</i> falls below –50 nT for at least four consecutive hours. The storms have been classified as either storm sudden commencements (SSCs; storms initiated by a sudden commencement) or as storm gradual commencements (SGCs; all other storms). It is found that the semi-annual variation of magnetic activity is reflected in the occurrence statistics of SGC events only, indicative that the solar wind origin is different for SSCs and SGCs. It is suggested that the heliospheric latitude model of seasonal magnetic activity is relatively ineffective in modulating the previously observed seasonal variations in the occurrence of magnetic storms.
Creator (Dublin Core)
Taylor, John R.
Lester, Mark
Yeoman, Timothy K.
Date (Dublin Core)
2018-09-27
Type (Dublin Core)
Text
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
10.1007/s00585-996-0286-1
https://angeo.copernicus.org/articles/14/286/1996/
Source (Dublin Core)
eISSN: 1432-0576
Language (Dublin Core)
eng
