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 …
Remote geophysical observatory in Antarctica with HF data transmission: A review
The geophysical observatory in the Antarctic Spanish Station, Juan Carlos I (ASJI), on
Livingston Island, has been monitoring the magnetic field in the Antarctic region for more …
Livingston Island, has been monitoring the magnetic field in the Antarctic region for more …
Seasonal variations of Sq current system in different longitudinal sectors and solar activities
Years of geomagnetic observatory data during the geomagnetic quiet days (Kp≤ 3) at the
low and middle dip latitudes from INTERMAGNET and SuperMAG were utilized. Seasonal …
low and middle dip latitudes from INTERMAGNET and SuperMAG were utilized. Seasonal …
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 …
Long-term variation in the upper atmosphere as seen in the geomagnetic solar quiet daily variation
Characteristics of long-term variation in the amplitude of solar quiet (Sq) geomagnetic field
daily variation have been investigated using 1-h geomagnetic field data obtained from 69 …
daily variation have been investigated using 1-h geomagnetic field data obtained from 69 …
Variations of Sq foci position from the Indian longitudes and its influence on Equatorial Electrojet
RK Archana, K Arora - Journal of Atmospheric and Solar-Terrestrial Physics, 2022 - Elsevier
The latitudinal positions of the Sq focus of the northern and southern Sq loops in the Indian
sector have been estimated for solar cycle-24. The Sq focus in the northern hemisphere …
sector have been estimated for solar cycle-24. The Sq focus in the northern hemisphere …
Equinoctial asymmetry in solar quiet fields along the 120° E meridian chain
Equinoctial asymmetry of the range of the solar quiet day variation (Sq) of the horizontal
geomagnetic field (H) has been found in some low latitude geomagnetic observatories. This …
geomagnetic field (H) has been found in some low latitude geomagnetic observatories. This …
Effects of solar activity on ionospheric current system in the Southeast Asia region
NSA Hamid, NIM Rosli, WNI Ismail… - Indian Journal of …, 2021 - Springer
The equatorial ionospheric current system is composed of equatorial electrojet (EEJ) and
solar quiet (Sq) that flow in the eastward direction. That being mentioned, this study looked …
solar quiet (Sq) that flow in the eastward direction. That being mentioned, this study looked …
Seasonal variation of the Sq focus position during 2006–2010
In the present paper, the perception of the seasonal variation of the Sq focus position is re-
examined during low solar activity period (2006–2010). Equivalent current vectors are …
examined during low solar activity period (2006–2010). Equivalent current vectors are …
Sq solar variation at Medea Observatory (Algeria), from 2008 to 2011
This paper presents the regular variations of terrestrial magnetic field recorded by a new
magnetic Observatory Medea, Algeria (geographic latitude: 36.85° N, geographic longitude …
magnetic Observatory Medea, Algeria (geographic latitude: 36.85° N, geographic longitude …