Abstract Details


Name: Mukul Tewari
Affiliation: M.B.Govt.P.G. College, Haldwani
Conference ID: TVS202510310
Title: Study of intense geomagnetic storms caused by corotating interaction regions using superposed epoch analysis
Authors and Co-Authors:
Abstract Type: Contributory Presentation
Abstract: Corotating interaction regions (CIRs) are one of the major cause for the geomagnetic disturbances during the declining phase of the solar cycle. CIRs are formed when high speed solar wind overtakes the slow moving solar wind while moving outwards. Regions of increased magnetic field and density are created by CIRs in the solar wind. In most of the cases these CIRs produce weak or moderate geomagnetic storms, however they sometimes cause intense events. In this paper we have performed superposed epoch study to compare the characteristics of intense events with the weak or moderate events. The parameters used for the study are Dst index, AE index, solar wind speed V, magnitude of IMF B, z component of IMF Bz and convective electric field Ey.