Long‐lasting disturbances in the equatorial ionospheric electric field simulated with a coupled magnetosphere‐ionosphere‐thermosphere model

AD Richmond, C Peymirat… - Journal of Geophysical …, 2003 - Wiley Online Library
The Magnetosphere‐Thermosphere‐Ionosphere‐Electrodynamics General Circulation
model of Peymirat et al.[1998] is used to investigate ionospheric‐wind‐dynamo influences …

Responses of equatorial anomaly to the October-November 2003 superstorms

B Zhao, W Wan, L Liu - Annales Geophysicae, 2005 - angeo.copernicus.org
The responses of Equatorial Ionization Anomaly (EIA) to the superstorms of October-
November 2003 were investigated using the total electron content (TEC) measured with …

Ionospheric storm of early November 1993 in the Indian equatorial region

JH Sastri, N Jyoti, VV Somayajulu… - Journal of …, 2000 - Wiley Online Library
An investigation is made of the response of equatorial ionosphere in the Indian (75° E)
sector to the major magnetic storm of November 3, 1993, using data from the ionosonde and …

TEC response during severe geomagnetic storms near the crest of equatorial ionization anomaly

A Jain, S Tiwari, S Jain, AK Gwal - 94.20. Vv; 94.30. Lr, 2010 - nopr.niscpr.res.in
The responses of the ionosphere near equatorial anomaly crest as observed at Bhopal
(geographic 23.2° N, 77.4° E, and magnetic latitude 14.2° N), India for geomagnetic storms …

Space weather research: Indian perspective

A Bhardwaj, TK Pant, RK Choudhary, D Nandy… - Space …, 2016 - Wiley Online Library
Abstract Space weather, just like its meteorological counterpart, is of extreme importance
when it comes to its impact on terrestrial near‐and far‐space environments. In recent years …

Modeling of GPS-TEC using QR-decomposition over the low latitude sector during disturbed geomagnetic conditions

JRKK Dabbakuti, Y Mallika, MV Rao, KR Rao… - Advances in Space …, 2019 - Elsevier
Given the continuous operation of satellite-based navigation applications, modeling of Total
Electron Content (TEC) during magnetic disturbed periods is a significant challenge. The …

Performance evaluation of selected ionospheric delay models during geomagnetic storm conditions in low-latitude region

DV Ratnam, AD Sarma, VS Srinivas… - Radio Science, 2011 - ieeexplore.ieee.org
Investigation of space weather effects on GPS satellite navigation systems is very crucial in
high-precision positional applications such as aircraft landings and missile guidance, etc …

Performance analysis of IRI-2016 and IRI-2020 models, and GPS and GLONASS-TEC variations, and their predictions using Artificial Neural Networks (ANNs) at low …

P Gupta, N Dubey, S Agarwal, D Singh… - Journal of Atmospheric …, 2025 - Elsevier
The total electron content (TEC) data was collected using the newly installed receiver
namely GPStation6 at the Agra, India station in 2016. The TEC data for Global Positioning …

Study of ionospheric precursors using GPS and GIM-TEC data related to earthquakes occurred on 16 April and 24 September, 2013 in Pakistan region

D Pundhir, B Singh, OP Singh, SK Gupta… - Advances in Space …, 2017 - Elsevier
In this paper, we have examined the diurnal variations of GPS-TEC observed at two Indian
stations of Agra (27.2° N, 78° E) and Surat (21.16° N, 72.78° E) and global ionospheric …

[PDF][PDF] Study of ionospheric variability during geomagnetic storms

R Malik, S Sarkar, S Mukherjee… - J. Indian Geophys …, 2010 - researchgate.net
ABSTRACT The dual frequency Global Positioning System (GPS) receivers provide an
opportunity to determine Total Electron Content (TEC) over the crest of equatorial ionization …