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Geophysical Research Letters

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Researchers spot new details in Juno satellite images of Jupiter’s aurora
Posted inResearch Spotlights

Juno Gets Spectacular View of Jupiter’s Aurora

by Mark Zastrow 7 September 20178 August 2022

The NASA spacecraft has taken images of Jupiter’s powerful aurora dancing around its poles, revealing never-before-seen details in their structure.

Increased winter flows in the Tanana River have puzzled researchers—until now
Posted inResearch Spotlights

Why Are Arctic Rivers Rising in Winter?

by E. Underwood 5 September 20173 March 2023

Increased glacial melt is boosting winter streamflows by filling aquifers, a new study on an Alaskan river suggests.

Researchers use a new technique to look at electrical fields within storm clouds
Posted inResearch Spotlights

When Ice and Lightning Align

by E. Underwood 5 September 20176 March 2023

A new technique can remotely sense strong electrical fields within storm clouds.

Researchers examine how slope determines stream shape.
Posted inResearch Spotlights

What Controls the Shape of Steep Mountain Streams?

Sarah Stanley, Science Writer by Sarah Stanley 28 August 201727 April 2022

The shape of steep river streams changes systematically with channel slope, but field data and theoretical analysis reveal that slope is not the sole factor in setting a channel’s form.

Researchers use cosmogenic isotopes to study ocean river transport.
Posted inResearch Spotlights

Tracing Land to Ocean River Transport with Cosmogenic Isotopes

by S. Witman 23 August 201728 January 2022

Beryllium stored in marine sediments can help scientists study erosion and other environmental changes.

We may be overestimating how reflective Earth is—and underestimating how much energy the planet’s ice sheets are absorbing.
Posted inResearch Spotlights

On-the-Ground Measurements Overestimate Earth’s Albedo

by David Shultz 18 August 20176 July 2022

Weather stations can be used to calibrate and validate albedo measurements from satellites, but they fail to account for variability across landscapes, overestimating how reflective our planet is.

New observations reveal secrets of sodium flares in Mercury’s exosphere
Posted inResearch Spotlights

Observing Mercury’s Brilliant Flares from Earth

by E. Underwood 9 August 20177 March 2022

Researchers make the first short-term observation of sodium flares in Mercury’s exosphere.

Offshore turbines in the wind farm Nordsee Ost (North Sea East) near Helgoland, Germany.
Posted inResearch Spotlights

Offshore Wind Turbines Can’t Yet Withstand Category 5 Hurricanes

by E. Underwood 8 August 201720 July 2022

A new study suggests that more robust turbine design is needed to weather high winds.

Satellite image of land surface in South Asia, observed in August 2004, from the Blue Marble data set.
Posted inResearch Spotlights

The Competing Climate Effects of Elevation and Albedo

by Terri Cook 1 August 20176 July 2022

Variations in surface reflectivity are as important as surface elevation changes in determining regional climate at nonpolar latitudes, according to a new modeling study.

Researchers look at what drives recent heat waves in China
Posted inResearch Spotlights

Are Humans to Blame for Worsening Heat Waves in China?

by E. Underwood 25 July 201724 March 2023

A new study suggests that even hotter events will follow unless greenhouse gas emissions are reduced.

Posts pagination

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

Features from AGU Publications

Research Spotlights

A Long-Term Look Beneath an Antarctic Ice Shelf

6 March 20269 March 2026
Editors' Highlights

Slow Atmospheric Circulations Shape Storm Tracks and Wave-Breaking Patterns

11 March 202611 March 2026
Editors' Vox

How Radar Reveals the Hidden Fabric of Ice Sheets

9 March 20269 March 2026
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