Results 81 to 90 of about 2,552 (218)
Space Weather, Volume 24, Issue 6, June 2026.Abstract Techniques developed in the past few years enable the derivation of multiscale ion convection and particle precipitation patterns from high‐resolution ground‐based observations, and it has been shown in previous studies that such multiscale geomagnetic forcing can contribute significantly to ionospheric and thermospheric disturbances.
Cheng Sheng +6 more
wiley +1 more source
Spiral structures and regularities in magnetic field variations and auroras [PDF]
History of Geo- and Space Sciences, 2012 The conception of spiral shaped precipitation regions, where solar corpuscles penetrate the upper atmosphere, was introduced into geophysics by C. Störmer and K. Birkeland at the beginning of the last century.
Y. I. Feldstein +3 more
doaj +1 more source
Secondary irregularities in the equatorial electrojet [PDF]
Journal of Geophysical Research, 1967 Although the two-stream instability theory, discussed by Farley, has been quite successful in accounting for many observed features of the plasma-wave irregularities produced in the equatorial electrojet, increased equipmental sensitivity and improved experimental techniques of observing the power spectrum of radio echoes from the electrojet have ...
Robert Cohen, Kenneth L. Bowles
openaire +1 more source
Space Weather, Volume 24, Issue 6, June 2026.Abstract This study presents a detailed case study of the ionospheric impacts of moderate (G2) and severe (G4) geomagnetic storms over the Latin American sector, with particular emphasis on the formation and suppression of equatorial plasma bubbles (EPBs).
C. S. Carmo +13 more
wiley +1 more source
Spatial and temporal variations of small-scale plasma turbulence parameters in the equatorial electrojet: HF and VHF radar observational results [PDF]
Annales Geophysicae, 2005 The spatial and temporal variations of various parameters associated with plasma wave turbulence in the equatorial electrojet (EEJ) at the magnetic equatorial location of Trivandrum (8.5° N, 77° E; dip 0.5° N) are studied for the first ...
G. Manju +2 more
doaj +1 more source
Space Weather, Volume 24, Issue 6, June 2026.Abstract Modern submarine communication cables, though fiber‐optic in nature, remain vulnerable to space weather hazards due to their internal conductive cables used for powering repeaters. During geomagnetic storms, variations in the geomagnetic field induce geoelectric fields that drive geomagnetically induced voltages along these cables.
S. Chakraborty +7 more
wiley +1 more source
Equatorial counter-electrojet and the F2-layer of the ionosphere [PDF]
, 1989 It is shown that the quiet day afternoon counter-electrojet events at equatorial stations are the result of a strong semi-diurnal tidal force, with a maximum around 0900 LT and a minimum around 1500 LT, superimposed over the normal Sq (H) variation. This
Rastogi, R. G., Patil, A.
core +1 more source
Terrestrial Space Weather Protection Through Human‐Produced Mass‐Loading
Space Weather, Volume 24, Issue 6, June 2026.Abstract While humans become more reliant on Earth's space environment, the potential for significant harm from severe space weather continues to grow. As structures from the sun reach Earth's magnetosphere and space environment, they deposit energy that fuels geomagnetic storms.
B. M. Walsh, D. T. Welling, Z. Huang
wiley +1 more source
High‐Latitude GPS Position Error During Substorms
Space Weather, Volume 24, Issue 6, June 2026.Abstract Substorms produce rapid fluctuations in Global Navigation Satellite System (GNSS) signals, leading to degraded positioning performance at high latitudes. This study investigates the correlation of auroral structures on Global Positioning System (GPS) Precise Point Positioning (PPP) error during three substorm events with different strengths ...
Weixuan Liao +6 more
wiley +1 more source
VHF Radar Observations during Equatorial Counter Electrojet Events [PDF]
, 1987 380-383The VHF backscatter radar observations at Thumba (dip, 56'S; geogr.long., 76°57E) provide a direct observational evidence of electrojet current reversals during the morning as well as the evening counter electrojet events.
Viswanathan, K S, Somayajulu, V V
core