Results 41 to 50 of about 3,658 (176)
The afternoon counter-electrojet current system along the 75°E meridian during the IEEY
Earth, Planets and Space, 2017 In the present study, the technique of principal component analysis (PCA) is applied to analyze the hourly mean values of geomagnetic field components D, H, and Z along an Indo-Russian chain of stations during the International Equatorial Electrojet Year
S. K. Bhardwaj, P. B. V. Subba Rao
doaj +1 more source
Combined radar observations of equatorial electrojet irregularities at Jicamarca [PDF]
Annales Geophysicae, 2007 Daytime equatorial electrojet plasma irregularities were investigated using five distinct radar diagnostics at Jicamarca including range-time-intensity (RTI) mapping, Faraday rotation, radar imaging, oblique scattering, and multiple-frequency ...
D. L. Hysell +8 more
doaj +1 more source
Enhancing Low‐Latitude Ionospheric Irregularity Prediction With Generalized Linear Models
Space Weather, Volume 24, Issue 3, March 2026.Abstract The ionosphere poses challenges for accurate forecasting due to its complexity and variability. Irregularities in the lower ionosphere are influenced by local time, season, geographic location, solar activity and space weather, complicating precise predictions.
Alysson Brhian +4 more
wiley +1 more source
Solar Influences on Geomagnetic and Related Phenomena [PDF]
, 1961 Solar influences on geomagnetic and related ...
Vestine, E. H.
core +2 more sources
Equatorial scintillations in relation to the development of ionization anomaly [PDF]
, 2006 International audienceThe irregularities in the electron density distribution of the ionosphere over the equatorial region frequently disrupt space-based communication and navigation links by causing severe amplitude and phase scintillations of signals ...
Dasgupta, Abhijeet, Paul, A., Ray, S.
core +2 more sources
Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.Abstract This study presents simultaneous measurements of electron phase space density (PSD) gradients in geostationary orbit using data from GK2A, GOES‐16, and GOES‐17. By leveraging a three‐satellite configuration, we provide statistical results of PSD gradient estimation in invariant coordinates.
N.‐Y. Lee +5 more
wiley +1 more source
Intense Ground Magnetic Perturbations During the 2024 May and October Geomagnetic Storms
Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.Abstract The May and October 2024 geomagnetic storms represent two of the most intense space weather events of Solar Cycle 25. While differing in global intensity, both storms produced extreme ionospheric disturbances, including equatorward auroral expansion to mid‐latitudes and rapid geomagnetic variations (dH/dt $\text{dH}/\text{dt}$).
P. De Michelis +3 more
wiley +1 more source
Analysis of Ionospheric Correlation Time Variations Based on Long‐Term GIMs Data
Space Weather, Volume 24, Issue 3, March 2026.Abstract Ionospheric correlation time measures the temporal correlation of the ionosphere and is an important parameter for characterizing the temporal connection of ionospheric variability. Ionospheric correlation times are obtained from high resolution global ionospheric TEC maps spanning 2005 to 2020.
Sicheng Wang, Sheng Guo, Sixun Huang
wiley +1 more source
, 2015 The CHAMP magnetic field variations during international quiet days of low solar activity period 2008-2009 are investigated. The present paper reports the existence of frequency-peaks < 20 mHz in the compressional component of the magnetic field in ...
Sinha, A. K. +2 more
core +1 more source
Space Weather, Volume 24, Issue 3, March 2026.Abstract A strong westward zonal wavenumber‐2 quasi‐4‐day wave (Q4DW) during the 2018/2019 Northern Hemisphere sudden stratospheric warming (SSW) is both captured by Aura Microwave Limb Sounder (MLS) observations and our new whole neutral atmosphere data assimilation system.
Wenxuan Wang +6 more
wiley +1 more source