Results 21 to 30 of about 45,378 (347)

The Satellite Risk Prediction and Radiation Forecast System (SaRIF)

open access: yesSpace Weather, 2021
With new satellite constellations being launched into low Earth orbit, the growing use of medium Earth orbit for radio‐navigation and timing signals, slot region orbits for telecommunications and the introduction of electric propulsion to reach ...
Richard B. Horne   +10 more
doaj   +1 more source

Van Allen Radiation Belts: An Important Challenge for Astrobiology Missions [PDF]

open access: yesفناوری در مهندسی هوافضا, 2020
Manned space missions account for a large proportion of future space travel missions.Van Allen radiation belts are major challenges of space missions with an astrobiology approach.
Iman Shafieenejad   +2 more
doaj  

Dynamics of the inner electron radiation belt: A review

open access: yesEarth and Planetary Physics, 2023
The Van Allen radiation belts are an extraordinary science discovery in the Earth magnetosphere and consist of two electron belts. The inner Van Allen belt contains electrons of 10s to 100s keV; the outer belt consists mainly of 0.1−10 MeV electrons ...
YuXuan Li   +5 more
doaj   +1 more source

Observations of Radiation Belt Losses Due to Cyclotron Wave-Particle Interactions [PDF]

open access: yes, 2020
Electron loss to the atmosphere plays a critical role in driving dynamics of the Earths Van Allen radiation belts and slot region. This is a review of atmospheric loss of radiation belt electrons caused by plasma wave scattering via Doppler-shifted ...
Abel   +388 more
core   +2 more sources

Constraining the Location of the Outer Boundary of Earth's Outer Radiation Belt

open access: yesEarth and Space Science, 2021
Characterizing the location of the outer boundary of the outer radiation belt is a key aspect of improving radiation belt models and helps to constrain our understanding of the mechanisms by which the source and seed electron populations are transported ...
T. Bloch   +4 more
doaj   +1 more source

Forecasting the Radiation Belts in Europe [PDF]

open access: yesSpace Weather, 2012
Weather forecasting has expanded to space weather. As of 1 March 2012, satellite operators and the general public will be able to obtain forecasts of the Earth’s radiation belts, thanks to the SPACECAST project. The opening of the first European system to forecast Earth’s radiation belts, part of the SPACECAST project, is funded by the European Union ...
openaire   +3 more sources

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+5 more sources

Ducted propagation of chorus waves: Cluster observations [PDF]

open access: yesAnnales Geophysicae, 2011
Ducted propagation of whistler waves in the terrestrial magnetosphere-ionosphere system was discussed and studied long before the first in-situ spacecraft measurements.
K. H. Yearby   +6 more
doaj   +1 more source

The global response of relativistic radiation belt electrons to the January 1997 magnetic cloud [PDF]

open access: yes, 1998
In January 1997 a large fleet of NASA and US military satellites provided the most complete observations to date of the changes in \u3e2 MeV electrons during a geomagnetic storm. Observations at geosynchronous orbit revealed a somewhat unusual two-peaked
Baker, D. N.   +9 more
core   +2 more sources

Geospace exploration project ERG

open access: yesEarth, Planets and Space, 2018
The Exploration of energization and Radiation in Geospace (ERG) project explores the acceleration, transport, and loss of relativistic electrons in the radiation belts and the dynamics for geospace storms.
Yoshizumi Miyoshi   +19 more
doaj   +1 more source

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