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ionospheres

Artwork by Anastasia Grigoryeva depicting solar wind as it affects the Martian atmosphere
Posted inResearch Spotlights

How Mars Lost Steam

by E. Underwood 11 April 2019

Solar winds are not the main culprit in stripping the planet’s atmosphere, a new study suggests.

A view of the aurora-like phenomenon dubbed STEVE
Posted inResearch Spotlights

Probing the Origin of a New Celestial Phenomenon

by Terri Cook 15 March 2019

The first statistical study of STEVE events suggests that the appearance of these narrow ribbons of light is closely correlated with violent disturbances in Earth’s magnetosphere.

A Strong Thermal Emission Velocity Enhancement, or STEVE, over Circle Lake in British Columbia
Posted inFeatures

How Did We Miss This? An Upper Atmospheric Discovery Named STEVE

by B. Gallardo-Lacourt, G. W. Perry, W. E. Archer and E. Donovan 4 March 2019

Captured unknowingly by scientific instruments for years, a sky phenomenon is finally brought to the attention of researchers by eagle-eyed citizen scientists.

Posted inEditors' Highlights

High Resolution Imaging of Ionosphere by Lightning

by V. Pasko 14 December 20185 July 2022

The three-dimensional distribution of electron density in the Earth’s ionosphere could be obtained using the broadband radiation of naturally occurring lightning discharges.

Posted inEditors' Highlights

Energetic Electrons Can Penetrate the Stratosphere

by Viviane Pierrard 17 October 201811 August 2022

Precipitations of electrons with energies greater than 30 kiloelectron volts from the slot region penetrate at low altitude and can contribute to destroy ozone.

Posted inEditors' Highlights

Seeing Waves: GNSS Tracking of Waves in the Upper Atmosphere

by Michael A. Hapgood 8 October 201813 April 2022

Dense GNSS networks enable scientists to track large-scale waves traveling through the upper atmosphere, away from sources in the auroral zone and the day/night terminator.

Satellites emit signals that can get weakly disrupted in unexpected regions of the ionosphere, research shows.
Posted inResearch Spotlights

Equatorial Ionospheric Scintillation During Daytime

by E. Underwood 27 September 2018

Scintillation—flickers and distortions in radio waves passing through the ionosphere—can happen during daytime and at much lower dip latitudes than previously thought.

Researchers examine sudden stratospheric warming events and their effect on the Earth’s ionosphere.
Posted inResearch Spotlights

Dramatic Stratospheric Warmings Carved a Hole in the Ionosphere

by E. Underwood 11 September 201812 October 2022

A new study of sudden temperature spikes in Earth’s stratosphere could improve space weather forecasting.

Posted inResearch Spotlights

Mysterious Aurora Borealis Feature Explained for the First Time

by E. Underwood 30 May 201823 January 2023

High-speed particles cause indentations in the magnetopause to form “throat auroras.”

Researchers examine a large plasma hole generated by a satellite launch to understand the impacts of anthropogenic space weather.
Posted inResearch Spotlights

Understanding the Effects of Anthropogenic Space Weather

by Terri Cook 1 May 201824 October 2022

A large plasma hole generated by the vertical launch of the Formosat-5 satellite created temporary navigating and positioning errors of up to 1 meter, according to a new study.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
JGR: Solid Earth
“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

EDITORS' HIGHLIGHTS
AGU Advances
“Eminently Complex – Climate Science and the 2021 Nobel Prize”
By Ana Barros

EDITORS' VOX
Perspectives of Earth and Space Scientists
“New Directions for Perspectives of Earth and Space Scientists”
By Michael Wysession


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