Results 81 to 90 of about 9,101 (234)

Forecasting Equatorial Plasma Bubbles From Precursor TEC Signatures Observed by C/NOFS

open access: yesSpace Weather, Volume 24, Issue 1, January 2026.
Abstract This study investigates the potential of localized total electron content (TEC) perturbation measurements, possibly associated with bottomside upwelling of the F‐layer, as precursors for forecasting ionospheric plasma irregularities, particularly the equatorial plasma bubbles (EPBs).
S. K. Das   +5 more
wiley   +1 more source

Successive Two-sided loop Jets Caused by Magnetic Reconnection between Two adjacent Filamentary Threads

open access: yes, 2017
We present observational analysis of two successive two-sided loop jets observed by the ground-based New Vacuum Solar Telescope (NVST) and the space-borne Solar Dynamics Observatory ( SDO).
Elmhamdi, Abouazza   +6 more
core   +1 more source

Forecasting SEP Atmospheric and Space Radiation by Coupling UMASEP and NAIRAS Models

open access: yesSpace Weather, Volume 24, Issue 1, January 2026.
Abstract The Nowcast of Aerospace Ionizing RAdiation System (NAIRAS) model predicts the radiation environment from the Earth's surface to free‐space. The model output provides dosimetric and particle flux quantities required to assess the hazardous radiation impacts to human health and adverse effects on vehicle electronic systems.
Christopher J. Mertens   +4 more
wiley   +1 more source

Geomagnetism : review 2009 [PDF]

open access: yes, 2010
The Geomagnetism team measures, records, models and interprets variations in the Earth’s natural magnetic fields, across the world and over time. Our data and expertise help to develop scientific understanding of the evolution of the solid Earth and its ...
Thomson, Alan W.P.
core  

Modulation of Electron Rolling‐Pin Distribution Behind Anti‐Dipolarization Front

open access: yesGeophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract The electron rolling pin distribution, showing electron pitch angles primarily at 0°, 90°, and 180°, has been recently observed behind dipolarization fronts (DFs) in the magnetosphere of Earth. However, the relation between such distribution and the leading edge of tailward magnetic reconnection jets, also known as anti‐dipolarization fronts ...
W. Z. Zhang   +4 more
wiley   +1 more source

MAGDAS for Geospace Environment Monitoring

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, SPACE TECHNOLOGY JAPAN, 2009
MAGnetic Data Acquisition System (MAGDAS) of the Circum-pan Pacific Magnetometer Network (CPMN) is introduced. MAGDAS/CPMN measures the ground magnetic field all around the world and sends the measured data to Space Environment Research Center (SERC), Fukuoka, Japan, via Internet, telephone line or satellite phone line.
Kiyohumi YUMOTO   +2 more
openaire   +2 more sources

The Global Propagation of Hiss Waves Originating From Dynamic Plasmaspheric Plume

open access: yesGeophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Hiss waves play a critical role in shaping Earth's radiation belts and mediating magnetosphere‐ionosphere energy transfer. Intense hiss emissions are frequently generated within dynamic plasmaspheric plumes through linear and nonlinear wave‐particle interactions.
Xiangling Ding   +6 more
wiley   +1 more source

The combined release and radiation effects satellite, a joint NASA/DOD program [PDF]

open access: yes
The Combined Release and Radiation Effects Satellite (CRRES) program is a two-phase joint USAF/NASA program consisting of a low Earth orbit (LEO) phase and a geosynchronous transfer orbit (GTO) phase.
Berrier, D. J.
core   +1 more source

Subsurface Marine Heatwaves Intensity Projected to Decrease in the Caribbean Sea Under RCP8.5

open access: yesGeophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract Marine heatwaves (MHWs)—extreme ocean temperature anomalies—are increasing in frequency and intensity globally, yet their vertical structure and drivers remain underexplored in the Caribbean Sea (CS), a region of critical ecological and socioeconomic importance.
Jacopo Sala   +4 more
wiley   +1 more source

Magnetotail reconnection onset caused by electron kinetics with a strong external driver

open access: yesNature Communications, 2020
Magnetotail reconnection plays a crucial role in explosive energy conversion in geospace. Here, the authors show that magnetotail reconnection starts from electron reconnection in the presence of a strong external driver, which then develops into ion ...
San Lu   +21 more
doaj   +1 more source

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