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Study of Ionospheric behaviour during the intense geomagnetic storms in 24th solar cycle over different Latitudes and Longitudes

Published online by Cambridge University Press:  28 September 2023

Bhupendra Malvi Open the ORCID record for Bhupendra Malvi [Opens in a new window] ,
Sharad C. Tripathi  and
P. K. Purohit
Bhupendra Malvi
Affiliation:
Department of Electronics, Barkatullah University, Bhopal - 462026, M.P., India
Sharad C. Tripathi
Affiliation:
School of Advanced Sciences and Languages (SASL), VIT Bhopal University, Bhopal - Indore Highway, Kothri Kalan, Sehore - 466114, M.P., India
P. K. Purohit
Affiliation:
Department of Applied Sciences, NITTTR, Shamla Hills, Bhopal - 462003, M.P., India
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Abstract

An analysis of geomagnetic disturbances and global ionospheric electron density perturbations during the 2015 St. Patrick’s Day geomagnetic storm is presented in this paper. GPS observations from worldwide IGS stations are used and analysed through GPS-TEC analysis application developed by Gopi Seemala to get VTEC profiles. The St. Patrick’s geomagnetic storm covers the interval of 15-23 March 2015, when transient solar eruptions (a prolonged C9-class solar flare and associated CMEs on 15 March) and a strong geomagnetic storm during 16-18 March (Dst dropped to -223 nT) were reported. This geomagnetic storm led to complex effects on the ionosphere. The global maps have been created after analysing VTEC profiles at Low, Mid and High-latitudes over different longitudinal sectors. Major features of the positive and negative ionospheric storm development are observed in Asian, European and American Low, Mid and High-latitudes.

Keywords

Geomagnetic StormTotal Electron ContentIonospheric PerturbationsSt. Patrick’s Day
Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 18 , Symposium S372: The Era of Multi-Messenger Solar Physics , August 2022 , pp. 76 - 80
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Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

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