Results 11 to 20 of about 249 (89)
GOES‐R Series X‐Ray Sensor (XRS): 2. On‐Orbit Measurements and Calibrations
Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.Abstract An X‐Ray Sensor (XRS) has been onboard each of the National Oceanic and Atmospheric Administration (NOAA) Geostationary Operational Environmental Satellites (GOES) since 1975. XRS measures full‐disk soft X‐ray irradiance in two wavelength bands, 0.05–0.4 nm and 0.1–0.8 nm.
Janet L. Machol +17 more
wiley +1 more source
Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.Abstract This study investigates global ionospheric variability using Global Total Electron Content (GTEC), defined as the spatial average of daily averaged Global Ionospheric Maps derived from the International GNSS Service. The analysis spans from 2010 to 2024, covering Solar Cycle 24 and the rising phase of Solar Cycle 25, and incorporates ...
Ramadane Hamed Linjouom Nsangou +1 more
wiley +1 more source
Human‐Interpretable SEP Event Prediction Using White‐Box Explainable AI
Space Weather, Volume 24, Issue 4, April 2026.Abstract Solar energetic particle (SEP) events pose radiation risks to astronauts and space systems, making their prediction essential. Although various prediction models have been developed, most machine learning (ML)‐based models lack interpretability; that is, it is difficult to explain the reasons behind individual predictions.
Naho Fujita +4 more
wiley +1 more source
Why Coronal Mass Ejections Arrive Differently: Solar Cycle Modulation Through Solar Wind Structure
Space Weather, Volume 24, Issue 4, April 2026.Abstract Coronal Mass Ejections (CMEs) are large structures of magnetized plasma ejected from the Sun's atmosphere into the heliosphere. The interaction of CMEs with the ambient solar wind during propagation affects arrival time and speed at Earth. Since the solar wind structure changes with the solar cycle, variability in the transit times and arrival
D. L. Gyeltshen +3 more
wiley +1 more source
Post‐Processing Probabilistic Forecasts of the Solar Wind by Data Mining Similar Scenarios
Space Weather, Volume 24, Issue 4, April 2026.Abstract The solar wind speed at Earth is one of the most important parameters regarding the effects of space weather on society. Thus far, most approaches for predicting the solar wind speed produce a single‐value time series without uncertainty, or utilize ensemble methods which require custom calibration development.
Daniel E. da Silva +3 more
wiley +1 more source
Space Weather, Volume 24, Issue 4, April 2026.Abstract Ground‐level neutron monitors (NMs) are essential tools for monitoring space weather events, including the detection and alerting of ground‐level enhancement (GLE) events. This study presents findings from a neutron monitoring survey using two compact N50L neutron slab‐based subsystems deployed across various field sites in the United Kingdom (
D. C. Mashao +11 more
wiley +1 more source
Space Weather, Volume 24, Issue 4, April 2026.Abstract This study investigates the impact of high‐latitude ionospheric irregularities on global positioning system (GPS) position accuracy during the 10–11 May 2024 geomagnetic storm. Using data from ground‐based GPS receivers and an all‐sky camera in Antarctica, we examined evolution of GPS vertical total electron content, phase fluctuations, and ...
Waqar Younas +8 more
wiley +1 more source
Space Weather, Volume 24, Issue 4, April 2026.Abstract WArning System for AVIation Exposure to Solar energetic particles (WASAVIES) is a physics‐based nowcasting system designed to support warning operations for aviation exposure to solar energetic particles (SEPs) by providing near‐real‐time global SEP dose‐rate estimates.
Tatsuhiko Sato +7 more
wiley +1 more source
Impact of Solar Irradiance on Storm‐Time Thermospheric Mass Density Response
Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.Abstract As a key parameter in the externally forced ionosphere–thermosphere (IT) system, mass density response to storms is affected by the prevailing solar irradiance. To better understand this relationship, we examine mass density responses to the same storm but with different background solar irradiance levels.
Simin Zhang +5 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.Abstract We analyze the response of mean winds and semidiurnal tides (SDTs) in the mesosphere and lower thermosphere (MLT; ∼70–110 km altitude) to the May 2024 geomagnetic super storm, based on meteor radar (MR) observations from King Sejong Station (KSS; geographic: 62.22°S, 58.78°W; geomagnetic: 53.27°S, 10.88°E) in the Antarctic Peninsula.
Byeong‐Gwon Song +8 more
wiley +1 more source