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

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 Seem...

Full description

Saved in:
Bibliographic Details
Published in:Proceedings of the International Astronomical Union 2022-08, Vol.18 (S372), p.76-80
Main Authors: Malvi, Bhupendra, Tripathi, Sharad C., Purohit, P. K.
Format: Article
Language:English
Subjects:
Astronomy
Computer centers
Contributed Paper
Electric fields
Electron density
Geomagnetism
Ionosphere
Ionospheric electron density
Ionospheric storms
Latitude
Magnetic storms
Perturbation
Solar cycle
Solar flares
Solar physics
Storms
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:1743-9213
1743-9221
DOI:10.1017/S174392132300087X