Results 71 to 80 of about 1,267 (222)

Equatorial electrojet dependence on solar activity in the Southeast Asia sector

Antarctic Record, 2013
A:The equatorial electrojet (EEJ) is a current system caused by the enhanced ionospheric conductivity near the dayside magnetic dip equator. We examined the dependence of the EEJ on solar activity, represented by the 10.7 cm solar radio flux (F10.7). For
Nurul Shazana Abdul Hamid, Huixin Liu, Teiji Uozumi, Kiyohumi Yumoto   +3 more
doaj   +1 more source

An investigation of solar flare effects on equatorial ionosphere and thermosphere using co-ordinated measurements

Earth, Planets and Space, 2019
The response of equatorial ionosphere–thermosphere system to the X3.8 solar flare of January 17, 2005 has been studied using the coordinated measurements of GPS-derived Total Electron Content (TEC), OI 630.0 nm dayglow and magnetic field measurements ...
S. G. Sumod, Tarun Kumar Pant
doaj   +1 more source

Radar profiles of the equatorial electrojet

Geophysical Research Letters, 1976
The electrojet current deduced from radar measurements was found in the past to present large E‐W variations near the coast of Peru. New measurements in Africa indicate that the electrojet shows no anomalous variations with longitude in Central Africa while a large E‐W asymmetry is detected in East Africa near the Red Sea.
M. Crochet, C. Poman, C. Hanuise
openaire   +1 more source

“Caterpillar” ULF Waves in the Dusk Side Sub‐Auroral Region: Conjugate Observations With SuperDARN, Arase and Ground Magnetometers

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract On 23 November 2022, during exceptionally quiet geomagnetic conditions, a distinct ultra‐low frequency (ULF) wave in the Pc5 band (∼2.4 mHz) was observed in the duskside sub‐auroral region by two Canadian SuperDARN (Super Dual Auroral Radar Network) radars.
N. Nishitani, K. Hosokawa, T. Hori, M. Teramoto, P. V. Ponomarenko, A. Shinbori, Y. Obana, A. S. Yukimatu, G. Hussey, Y. Miyoshi, A. Matsuoka, A. Kumamoto, F. Tsuchiya, S. Matsuda, Y. Kasahara, S. Nakamura, I. Shinohara, Y. Zhang, L. Paxton   +18 more
wiley   +1 more source

How Does the Magnetosphere‐Ionosphere Current System Respond to Solar Flares?

Geophysical Research Letters
While the isolated effects of solar flares on low‐latitude ionospheric electrodynamics have been well documented, the coupled system response of the equatorial electrojet (EEJ), auroral electrojet (AEJ), field‐aligned currents (FACs), and asymmetric ring
Hongkai Tang, Jing Liu, Xuanqing Liu, Xiangyu Niu, Jiawei Zhang, Shuhan Li   +5 more
doaj   +1 more source

Solar flare effects in equatorial counter electrojet currents

, 1975
THE solar flare effect on the horizontal component of the geomagnetic field (H) during the period of counter equatorial electrojet current is characterised by a negative crochet (decrease of the H field) at an equatorial electrojet station and a positive
Sastri, N. S., R. G. RASTOGI, Deshpande, M. R., Rastogi, R. G., N. S. SASTRI, M. R. DESHPANDE   +5 more
core   +1 more source

Secondary Irregularities in the Equatorial Electrojet

, 1966
Instrumentation techniques and autocorrelation analysis procedures for secondary equatorial electrojet ...
Bowles, K. L., Cohen, R.
core  

Spatial Scale of Ionospheric Equatorial Electrojet Using Longitude Gradient of Magnetic Data from Swarm Satellites

Applied Sciences
The equatorial electrojet (EEJ) is an eastward electric current system in the ionosphere located along the dip equator. Investigating the small-scale spatial gradients of the EEJ is essential to elucidate its fine structure and associated controlling ...
Shuang Liu, Jiaming Ou
doaj   +1 more source

VHF backscatter radar studies of the equatorial electrojet [PDF]

, 1990
203-214Recent theoretical and radar observational research has given an impetus in the understanding the height and latitude structures of the equatorial electrojet electric fields and currents.
Viswanathan, K S
core  

The Equatorial Electrojet: Radar Observations and Modeling

, 2006
This dissertation describes a theoretical, experimental, and modeling investigation of the equatorial electrojet. We review low latitude ionospheric current models, synthesizing developments from the early times until the present.
Shume, Esayas
core