Results 71 to 80 of about 18,291 (244)

KAUSTSat: Saudi Arabia's First Hyperspectral CubeSat Mission for Earth Observation

open access: yesEarth and Space Science, Volume 13, Issue 3, March 2026.
Abstract Developed by the King Abdullah University of Science and Technology (KAUST) to support research in atmospheric science and remote sensing, KAUSTSat represented Saudi Arabia's (and the Middle East's) first research‐focused hyperspectral CubeSat mission for Earth observation.
Victor Angulo   +5 more
wiley   +1 more source

A Study of the Morphology of Magnetic Storms Great Magnetic Storms [PDF]

open access: yes, 1958
Average characteristics are determined for 74 great magnetic storms with sudden commencements that occurred in 1902-1945. The storm field is resolved for different epochs of storm time into tv;o parts: (i) Dst, which is independent of local time, that
Chapman, Sydney, Sugiura, Masahisa
core  

Model Validation of M‐I Coupling in SWMF

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract The accurate modeling of field‐aligned currents (FAC) and electron precipitation is critical for understanding magnetosphere‐ionosphere coupling and improving space weather predictions. This study evaluates the performance of the SWMF in replicating observed FAC magnitudes and distributions, as well as electron precipitation during storms and ...
Tre'Shunda James, Alex Glocer
wiley   +1 more source

The Evolution of a Polar Cap Patch Into a Blob in the Nightside Ionosphere: Direct Observations of Multiple Blob Formation Mechanisms Acting Simultaneously on the Same Plasma

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract A polar cap patch was observed to exit the polar cap to become a blob as it entered the auroral oval on the nightside of the Earth under moderately quiet geomagnetic conditions (Kp = 3−). Auroral particle precipitation led to an increase in the electron density of the blob.
S. J. Maguire   +9 more
wiley   +1 more source

The New Geomagnetic Monitoring Network in China: Insights From the 2024 Mother's Day Superstorm

open access: yesSpace Weather
China has established a ground‐based network system, that is the Chinese Meridian Project (CMP), to continuously monitor the geomagnetic field. The superstorm in May 2024 was analyzed using the CMP data.
Jing Wang   +12 more
doaj   +1 more source

Phase‐Space Synchronization Driven by Moon‐Magnetosphere Coupling in Gas Giants

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract We present a new theoretical framework to describe the rapid and spatially localized loss of energetic particles in planetary radiation belts, focusing on interactions between gas giant magnetospheres and their moons. Observations show that flux depletions—known as microsignatures—often refill on timescales comparable to a single drift period,
Adnane Osmane   +2 more
wiley   +1 more source

A Safety Evaluation Method for a Power System Influenced by a Geomagnetic Storm

open access: yesIEEE Access, 2020
Geomagnetic storm disasters have a significant impact on the safe and stable operation of power systems. Serious geomagnetic storm disasters can lead to cascading accidents in power systems, up to and including voltage collapse accidents.
Shu-Ming Zhang, Lian-Guang Liu
doaj   +1 more source

Study of the Mid‐Latitude Airglow Responses to Geomagnetic Storms Based on Long‐Term Observations in Japan With the TIMED Satellite and Ionosondes

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Variations in nighttime airglow at mid‐latitudes during geomagnetic disturbances reflect the propagation of atmospheric and plasma disturbances from polar heating as well as local chemical processes. However, their detailed mechanisms remain unclear.
Y. Hotta   +4 more
wiley   +1 more source

Modelling the effects of space weather at the Earth’s surface : a UK geoelectric field model [PDF]

open access: yes, 2004
Geomagnetically Induced Currents (GIC), which can flow in technological systems such as power transmission grids, are a consequence of the geoelectric field induced at the surface of the Earth during geomagnetic storms.
Clarke, Ellen   +3 more
core  

Recurrence based quantification of dynamical complexity in the Earth's magnetosphere at geospace storm timescales

open access: yes, 2018
Magnetic storms are the most prominent global manifestations of out-of-equilibrium magnetospheric dynamics. Investigating the dynamical complexity exhibited by geomagnetic observables can provide valuable insights into relevant physical processes as well
Balasis, Georgios   +5 more
core   +1 more source

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