Results 81 to 90 of about 3,881 (215)

High‐Precision Prediction of Auroral Substorm Expansion Phase Evolution Using a Spatio‐Temporal Attention Deep Learning Model

Space Weather, Volume 24, Issue 2, February 2026.
Abstract Auroral substorms are a key manifestation of solar‐terrestrial interactions and the release of energy within the Earth's magnetosphere. The expansion phase, which is characterized by rapid changes in auroral morphology and intensity, poses significant space weather risks to satellite operations and communication systems.
Qiuju Yang, Xiaojian Cao, Yong Wang, Zanyang Xing   +3 more
wiley   +1 more source

Evidence for a continuous, power law, electron density irregularity spectrum [PDF]

The spectral form of the irregularities in electron density that cause interplanetary scintillation (IPS) of small angular diameter radio sources is discussed.
Cronyn, W. M.
core   +1 more source

High‐Latitude Electrodynamics and Thermospheric Density Variations During the 2024 Gannon Storm

Space Weather, Volume 24, Issue 2, February 2026.
Abstract This study investigates high‐latitude electrodynamics and thermospheric density variations during the 2024 Gannon's storm. First, the auroral precipitation module of Auroral Spectra and High‐Latitude Electric field variabilitY, ASHLEY‐A, is improved to more accurately capture the location of auroral precipitation observed during this ...
Qingyu Zhu, Sarah Vines, Marc Hairston, Yun‐Ju Chen, Phillip Anderson, Cheng Sheng, Yue Deng   +6 more
wiley   +1 more source

Geomagnetic storm main phase effect on the equatorial ionosphere over Ile–Ife as measured from GPS observations

Scientific African, 2020
The effect of the main phase of two intense geomagnetic storm events which occurred on August 6 and September 26, 2011 on the equatorial ionosphere have been investigated using Global Positioning System (GPS) data obtained from an Ile–Ife station ...
Ayomide O. Olabode, Emmanuel A. Ariyibi
doaj   +1 more source

The Geomagnetic Storm on 10–12 May 2024 and Its Effect on the Swedish Power Grid

Space Weather, Volume 24, Issue 2, February 2026.
Abstract On 10–12 May 2024, at least five interplanetary coronal mass ejections (ICMEs) arrived at Earth and caused the strongest geomagnetic storm in over 20 years. During this geomagnetic storm, a disturbance occurred in a transformer in southern Sweden, causing a drop in power supply in the power line connecting Sweden and Poland.
A. V. L. Wallner, A. P. Dimmock, V. Lanabere, A. Johlander, S. Molenkamp Venholen, A. Viljanen, L. Juusola, L. Rosenqvist, J. Setréus, E. Yordanova, S. Buchert, U. Heiter, Yu. V. Khotyaintsev   +12 more
wiley   +1 more source

The Chinese Radio Telescope Array for Interplanetary Scintillation Monitoring

Space Weather
Solar flares, coronal mass ejections (CMEs) and enegertic particles, etc., are the driving sources that may cause catastrophic space weathers. It is desirable to obtain information of solar eruptions like flares and CMEs, etc., propagating from the Sun ...
Yihua Yan, Wei Wang, Jin Fan, Ming Xiong, Zhijun Chen, Linjie Chen, Cang Su, Sha Li, Jun Cheng, Jing Du, Xueshang Feng   +10 more
doaj   +1 more source

Forecasting Heliospheric CME Solar-Wind Parameters Using the UCSD Time-Dependent Tomography and ISEE Interplanetary Scintillation Data: The 10 March 2022 CME. [PDF]

Sol Phys, 2023
Jackson BV, Tokumaru M, Iwai K, Bracamontes MT, Buffington A, Fujiki K, Murakami G, Heyner D, Sanchez-Cano B, Rojo M, Aizawa S, Andre N, Barthe A, Penou E, Fedorov A, Sauvaud JA, Yokota S, Saito Y.   +17 more
europepmc   +1 more source

Reconstructing solar wind inhomogeneous structures from stereoscopic observations in white-light: Small transients along the Sun-Earth line

, 2018
The Heliospheric Imagers (HI) on board the two spacecraft of the Solar Terrestrial Relations Observatory (STEREO) provided white-light images of transients in the solar wind from dual perspectives from 2007 to 2014. In this paper, we develop a new method
Chi, Yutian, Li, Xiaolei, Liu, Jiajia, Liu, Rui, Shen, Chenglong, Wang, Yuming, Zhang, Quanhao, Zhuang, Bin   +7 more
core   +1 more source

Evolution of Solar Magnetic Field and Associated Multi-wavelength Phenomena: Flare events on 20 November 2003

, 2009
We analyze H-alpha images, soft X-ray profiles, magnetograms, extreme ultra-violet images and radio observations of two homologous flare events (M1.4/1N and M9.6/2B) on 20 November 2003 in the active region NOAA 10501 and study properties of reconnection
Gopalswamy, Manoharan, Manoharan, Manoharan, P. K. Manoharan, Pankaj Kumar, Petschek, Pevtsov, Sui, van Driel-Gesztelyi, Wahab Uddin, Yokoyama, Zarro   +12 more
core   +1 more source

Observations of the solar plasma using radio scattering and scintillation methods [PDF]

Observations of the solar plasma using the interplanetary scintillation technique have been made at radial distances of 0.03 to 1.2 AU. The solar wind is found to be independent of ecliptic latitude and radial distance, except close to the sun where ...
Hewish, A.
core   +1 more source