Seasonal Dynamics of Geomagnetic Storm

Bishir Usman , Ibrahim Jafaru

seasonal variation, geomagnetic storm, solar proton density, solar proton temperature, solar proton speed, interplanetary magnetic field and disturbed storm index

This study is based on the seasonal dynamic of geomagnetic storms. The 1 hour Dst geomagnetic index was used in this work to characterize the geomagnetic storm development and it was obtained from the World Data Centre for Geomagnetism, WDC-Kyoto. One-hour data of the vertical component of interplanetary magnetic field IMF-z and solar wind ion parameters; proton density (Np), proton temperature (Tp) and proton speed (Vp) were obtained from the MAG and SWEPAM experiments on the Advance Composition Explorer (ACE) spacecraft, as given by the ACE Science Centre. The period selected for the analysis is the ACE observational period from 2011 to 2018, for which the Dst index was available in its final form when this work was performed. Intense geomagnetic storms that reaches, at least, a Dst peak of −100 nT were selected. Considering this criterion, a total of 20 events were obtained. From this data-set, 8 storms were used in the study, out of which three are selected each from summer and equinox and two from winter. Base on the analysis of the data it is observed that disturbed storm index (Dst) lags behind vertical component of interplanetary magnetic field IMF-z with a range of 3-11UTC in summer season, 1-6UTC in winter and 6- 14UTC in equinox. This means that the time delay between vertical component of interplanetary magnetic field and disturbed storm index is comparably highest in equinox and least in winter.

Published Paper   E-Certificate

"Seasonal Dynamics of Geomagnetic Storm", IJSDR - International Journal of Scientific Development and Research (www.IJSDR.org), ISSN:2455-2631, Vol.7, Issue 6, page no.367 - 378, June-2022, Available :https://ijsdr.org/papers/IJSDR2206061.pdf

Volume 7 Issue 6, June-2022

Pages : 367 - 378

Paper Reg. ID: IJSDR_200743

Published Paper Id: IJSDR2206061

Downloads: 000347073

Research Area: Physics

Country: Shimla, Himachal Pradesh, India

Published Paper PDF: https://ijsdr.org/papers/IJSDR2206061

Published Paper URL: https://ijsdr.org/viewpaperforall?paper=IJSDR2206061

ISSN: 2455-2631 | IMPACT FACTOR: 9.15 Calculated By Google Scholar | ESTD YEAR: 2016

An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 9.15 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator

Publisher: IJSDR(IJ Publication) Janvi Wave

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