Positive and negative GPS‐TEC ionospheric storm effects during the extreme space weather event of March 2015 over the Brazilian sector

PR Fagundes, FA Cardoso, BG Fejer… - Journal of …, 2016 - Wiley Online Library
We studied the response of the ionosphere (F region) in the Brazilian sector during extreme
space weather event of 17 March 2015 using a large network of 102 GPS‐total electron …

Geomagnetic storm effects on the occurrences of ionospheric irregularities over the African equatorial/low-latitude region

PO Amaechi, EO Oyeyemi, AO Akala - Advances in Space Research, 2018 - Elsevier
The study investigated the effects of intense geomagnetic storms of 2015 on the occurrences
of large scale ionospheric irregularities over the African equatorial/low-latitude region. Four …

Longitudinal variation of the ionospheric response to the 26 August 2018 geomagnetic storm at equatorial/low latitudes

GA Mansilla, MM Zossi - Pure and Applied Geophysics, 2020 - Springer
We have studied the ionospheric response at near-equator latitudes during the geomagnetic
storm of 26 August 2018, which was the strongest geomagnetic disturbance that year …

The Influence of Disturbance Dynamo Electric Field in the Formation of Strong Sporadic E Layers Over Boa Vista, a Low‐Latitude Station in the American Sector

LCA Resende, JK Shi, CM Denardini… - Journal of …, 2020 - Wiley Online Library
This study analyzes strong sporadic E layer (Es) formation in Boa Vista (BV, 2.8° N, 60.7° W,
dip: 18°), a low‐latitude region in the Brazilian sector, which occurred far after the onset of a …

A case study of ionospheric storm effects during long‐lasting southward IMF Bz‐driven geomagnetic storm

J Liu, L Liu, T Nakamura, B Zhao, B Ning… - Journal of …, 2014 - Wiley Online Library
Multiple instrumental observations including GPS total electron content (TEC), foF2 and
hmF2 from ionosondes, vertical ion drift measurements from Communication/Navigation …

Intensification and Weakening of Equatorial Plasma Bubble Development Observed by GOLD During Different Phases of a Geomagnetic Storm

BC Amadi, L Qian, ER de Paula… - Journal of …, 2023 - Wiley Online Library
Equatorial plasma bubble (EPB) development during different phases of the geomagnetic
storm of 3–4 November 2021 (SYMHmin=− 118 nT) was examined using observations and …

Signatures of solar event at middle and low latitudes in the Europe-African sector, during geomagnetic storms, October 2013

I Azzouzi, Y Migoya-Orue, CA Mazaudier… - Advances in Space …, 2015 - Elsevier
This paper presents the variability of the total electron content, VTEC, the ROTI index (proxy
of the scintillation index) and the transient variations of the Earth's magnetic field associated …

Climatology of intermediate descending layers (or 150 km echoes) over the equatorial and low-latitude regions of Brazil during the deep solar minimum of 2009

ÂM dos Santos, IS Batista, MA Abdu… - Annales …, 2019 - angeo.copernicus.org
In this work, we have performed a study for the first time on the climatology of the
intermediate descending layers (ILs) over Brazilian equatorial and low-latitude regions …

Disturbance zonal and vertical plasma drifts in the Peruvian sector during solar minimum phases

AM Santos, MA Abdu, JR Souza… - Journal of …, 2016 - Wiley Online Library
In the present work, we investigate the behavior of the equatorial F region zonal plasma
drifts over the Peruvian region under magnetically disturbed conditions during two solar …

Multi-Instrument Observation of the Ionospheric Irregularities and Disturbances during the 23–24 March 2023 Geomagnetic Storm

A Tahir, F Wu, M Shah, C Amory-Mazaudier… - Remote Sensing, 2024 - mdpi.com
This work investigates the ionospheric response to the March 2023 geomagnetic storm over
American and Asian sectors from total electron content (TEC), rate of TEC index, ionospheric …