Results 51 to 60 of about 652,381 (186)
Connection between ENSO phenomena and solar and geomagnetic activity [PDF]
Natural Hazards and Earth System Sciences, 2002 Connections between El Niño – Southern Oscillation (ENSO) phenomena and indices of solar activity and geomagnetic disturbance were investigated. Spectral analysis of the ENSO-data was carried out.
M. A. Nuzhdina
doaj
Mid‐Latitude Double H‐Spikes: Their Properties and Signatures in Different Geomagnetic Indices
Space Weather, 2023 Proper assessment of geomagnetic disturbances is a key aspect of space weather as technology is often impacted by space weather activity without previous warnings or proper forecasts.
E. Saiz, A. Guerrero, C. Cid
doaj +1 more source
ELFIN Statistics of Electron Strong Diffusion in the Inner Magnetosphere
Journal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.Abstract Pitch‐angle diffusion of trapped electrons driven by whistler‐mode and EMIC waves and by field‐line curvature scattering (FLCS) plays an important role in energetic and relativistic electron loss from the inner magnetosphere. The strong diffusion regime, characterized by a nearly full loss cone, rarely occurs, but is expected to account for a ...
Emile Saint‐Girons +4 more
wiley +1 more source
Quiet Time Ionosphere‐Thermosphere Predictability During Sudden Stratospheric Warmings in TIE‐GCM
Space Weather, Volume 24, Issue 11, November 2026.Abstract We investigate the predictability of the ionosphere‐thermosphere (IT) region during sudden stratospheric warmings (SSWs) by using subseasonal hindcasts in the Community Earth System Model, version 2 with the Whole Atmosphere Community Climate Model (CESM2 [WACCM6]) to force the lower boundary of the TIE‐GCM.
B. C. Martinez, N. M. Pedatella, Xian Lu
wiley +1 more source
Spectrum analysis of short-period K index behaviour at high and mid-latitudes [PDF]
Annales Geophysicae, 2015 Geomagnetic activity levels during the declining phase and solar minimum period of the solar cycle are considerably different from those during the solar maximum phase.
P. B. Kotzé
doaj +1 more source
Global Ionospheric Responses to Four X‐Class Solar Flares in November 2025
Space Weather, Volume 24, Issue 11, November 2026.Abstract We investigate global ionospheric responses to four X‐class solar‐disk flares that occurred in November 2025 from the same solar active region, using multi‐instrument observations including GNSS, ionosonde, geomagnetic and GOES solar irradiance data. Pronounced dayside TEC enhancements are observed for three flares (#2 X1.2, #3 X5.1, and #4 X4.
Lei Liu, Shasha Zou
wiley +1 more source
A Data‐Driven Model of the Geomagnetic Storm Recovery Phase
Space Weather, Volume 24, Issue 11, November 2026.Abstract The recovery phase of geomagnetic storms poses a significant challenge for accurate space weather forecasting. Traditional models based on a constant decay rate fail to capture its prolonged and variable duration, leading to uncertainties in predicting impacts on technological systems.
G. Consolini +5 more
wiley +1 more source
How Well Can Solar Wind Parameters Predict Outer Radiation Belt Electron Flux?
Space WeatherThe electron flux in the outer radiation belt is primarily governed by interactions between the solar wind and magnetosphere. While geomagnetic indices are widely used for modeling and forecasting, their real‐time availability is limited.
Yutong Li, Mengli Tan, Xin Tao
doaj +1 more source
Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.Abstract We present the first coordinated study of nighttime mesosphere‐ionosphere coupling over the continental United States (CONUS) from January through November 2024 using NASA Atmospheric Waves Experiment (AWE) airglow measurements near 87 km and GNSS Total Electron Content observations near 300 km.
Sreelekshmi Radhakrishnan Girijakumary +1 more
wiley +1 more source
Multifractal analysis of geomagnetic storm and solar flare indices and their class dependence [PDF]
, 2009 The multifractal properties of two indices of geomagnetic activity, D st (representative of low latitudes) and a p (representative of the global geomagnetic activity), with the solar X-ray brightness, X l , during the period from 1 March 1995 to 17 June ...
Anh, Vo, Eastes, Richard, Yu, Zu-Guo
core +2 more sources