Sq and EEJ—a review on the daily variation of the geomagnetic field caused by ionospheric dynamo currents
Y Yamazaki, A Maute - Space Science Reviews, 2017 - Springer
A record of the geomagnetic field on the ground sometimes shows smooth daily variations
on the order of a few tens of nano teslas. These daily variations, commonly known as Sq, are …
on the order of a few tens of nano teslas. These daily variations, commonly known as Sq, are …
Tectonic and metallogenic implications of a metasomatized mantle inferred from magnetotellurics and gravity data: An example of Tapajós Mineral Province, Amazon …
Abstract The Tapajós Mineral Province (TMP) contains evidence of subduction processes
during the Paleoproterozoic. Despite well-documented arc magmatism, the lack of solid …
during the Paleoproterozoic. Despite well-documented arc magmatism, the lack of solid …
Thermospheric neutral wind studies over the equatorial region: A review
SS Nasuha, I Sarudin, NSA Hamid… - Earth and Planetary …, 2024 - eppcgs.org
Thermospheric neutral winds (TNWs) refer to the neutral gases in the thermosphere
circulating as tides, which play a crucial role in the dynamics of the thermosphere …
circulating as tides, which play a crucial role in the dynamics of the thermosphere …
Evolution of the geomagnetic daily variation at Tatuoca, Brazil, from 1957 to 2019: A transition from Sq to EEJ
G Soares, Y Yamazaki, I Cnossen… - Journal of …, 2020 - Wiley Online Library
The magnetic equator in the Brazilian region has moved over 1,100 km northward since
1957, passing the geomagnetic observatory Tatuoca (TTB), in northern Brazil, around 2013 …
1957, passing the geomagnetic observatory Tatuoca (TTB), in northern Brazil, around 2013 …
Robust least square modelling for selected daytime ionospheric parameters using geomagnetic observations at low latitudes
The east–west electric field and the characterized horizontal configuration of the
geomagnetic fields around the equatorial region cause electron redistribution in the …
geomagnetic fields around the equatorial region cause electron redistribution in the …
Investigation of unusual solar flare effect on the global ionospheric current system
NMN Annadurai, NSA Hamid… - Journal of …, 2018 - Wiley Online Library
In this paper, we present our investigation of geomagnetic crochets observed following the X‐
class solar flare events on 9 August 2011 (X6. 9) and 24 September 2011 (X1. 4). Both …
class solar flare events on 9 August 2011 (X6. 9) and 24 September 2011 (X1. 4). Both …
Identification of fractal properties in geomagnetic data of southeast asian region during various solar activity levels
The fractal properties of geomagnetic northward component data (H-component) in the
equatorial region during various phases of solar activity over Southeast Asia were …
equatorial region during various phases of solar activity over Southeast Asia were …
The variation of counter-electrojet current at the Southeast Asian sector during different solar activity levels
NI Mohd Rosli, NS Abdul Hamid, M Abdullah… - Applied Sciences, 2022 - mdpi.com
Studies on counter-electrojet currents (CEJ) using ground data revealed that this current
could occur simultaneously among locations that are less than 30° longitude apart. In our …
could occur simultaneously among locations that are less than 30° longitude apart. In our …
Quantification of Sq parameters in 2008 based on geomagnetic observatory data
A Soloviev, A Smirnov, A Gvishiani… - Advances in Space …, 2019 - Elsevier
The paper presents an investigation of the time-dependent parameters of the solar quiet
daily (Sq) variation for the minimum of the solar cycle 23/24 in 2008. We apply “Measure of …
daily (Sq) variation for the minimum of the solar cycle 23/24 in 2008. We apply “Measure of …
Re‐visiting EEJ and CEJ occurrences pattern under the influence of Sq variations of both hemispheres
The present study investigated the variability in Equatorial electrojet (EEJ) and Counter
electrojet (CEJ) extracted at the Indian equatorial station Tirunelveli (TIR) using low‐latitude …
electrojet (CEJ) extracted at the Indian equatorial station Tirunelveli (TIR) using low‐latitude …