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Space radiation environment

A graphical assessment of solar energetic particle forecasts
Posted inEditors' Highlights

How to Assess the Quality of Space Weather Forecasts?

by Michael A. Hapgood 27 May 202128 September 2021

The assessment of space weather event forecasts would benefit from more nuanced approaches that take account of event intensities peaking near the thresholds used to identify such events.

Right: Image of a solar flare observed on 19 October 2014. Left: Diagram showing configuration of the planets at the time of the flare
Posted inEditors' Highlights

The Importance of Solar Lyman-alpha Emissions for Space Weather

by Michael A. Hapgood 29 September 202028 September 2020

Lyman-alpha emissions convey a major part of the solar-flare photon energy reaching Earth and play a significant role in flare-driven enhancements of ionospheric conductivity.

Sakurajima volcano emits a cloud of ash
Posted inNews

Are Cosmic Rays a Key to Forecasting Volcanic Eruptions?

by Mara Johnson-Groh 21 April 202022 November 2021

A combination of relativistic particles and artificial intelligence may provide a new way to forecast when a volcano could erupt.

Posted inEditors' Highlights

First Multi-Decade Simulation of the Earth’s Radiation Belt

by P. O’Brien 19 December 2018

A new simulation of the Earth’s electron radiation belts captures large-scale variations over nearly three solar cycles, and replicates primary cyclical features and extreme behaviors.

Posted inEditors' Highlights

Catching the Oncoming Radiation Storm

by Michael A. Hapgood 13 April 2018

Improved processing enables satellite-based radiation sensors to match ground-based sensors in providing prompt warnings of the onset of atmospheric radiation storms that can endanger civil aviation.

Posted inResearch Spotlights

New Model Predicts Big Solar Proton Storms

by Sarah Stanley 11 February 201611 February 2016

Forecasts of dangerous solar events could buy time for astronauts en route to the Moon or Mars.

Posted inResearch Spotlights

Predicting Space Weather on a Satellite Superhighway

by E. Betz 9 September 201521 September 2015

Scientists combined 82 satellite years of data to create a more comprehensive model of how plasma behaves in a region of Earth's magnetosphere with heavy spacecraft traffic.

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“Nationwide and Regional PM2.5-Related Air Quality Health Benefits from the Removal of Energy-Related Emissions in the United States”
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