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Geophysical Research Letters

Posted inResearch Spotlights

Large-Scale Electric Currents May Flow Through Mercury's Crust

by J. Orwig 18 March 201516 November 2021

NASA's MESSENGER spacecraft discovered electric currents in Mercury's magnetosphere directed toward and away from the planet. Do the currents reach the planet? If so, where do they go?

Posted inResearch Spotlights

Unusual Echo Signal in Atmospheric E Layer

by J. Orwig 11 March 201520 October 2021

Metallic plasma layers in Earth's ionosphere interfere with radio communications and produce odd echo behavior at specific frequencies.

Posted inResearch Spotlights

Seismic Stress Modeling Puts Istanbul in the Crosshairs

by C. Schultz 3 March 201518 April 2022

Twenty years of ground motion observations show that seismic strain is accumulating south of Istanbul.

Posted inResearch Spotlights

What Drove Sea Surface Temperature Change During the Pleistocene?

by J. Orwig 2 March 201516 March 2023

New information suggests that atmospheric carbon dioxide concentration was just one of the main drivers of warming sea surface temperatures in the Pleistocene.

Posted inResearch Spotlights

"Knobby Terrain" a Sign of Mars's Explosive Past

by E. Betz 27 February 201517 February 2023

Newly identified knobby terrain related to ancient volcanoes on Mars hint that pyroclastic ash and rock flowed down slopes early in the red planet's history.

Posted inResearch Spotlights

Changing Patterns in U.S. Air Quality

by C. Schultz 18 February 201513 February 2023

Over the northeast United States, ground-level ozone will peak in the winter rather than the summer thanks to continued reductions of regional nitrogen oxide emissions from smokestacks and tailpipes.

Posted inResearch Spotlights

Tracking Down a Subduction Zone Earthquake

by JoAnna Wendel 13 February 20158 December 2022

Researchers use computer simulations to find the date and earthquake source of an ancient tsunami that deposited sediment in a Hawaii sinkhole.

Posted inResearch Spotlights

Microbial Activity in Dry Soils

by C. Minnehan 9 February 20157 September 2022

Researchers investigate how microbes respire in dry conditions.

Posted inResearch Spotlights

Wave Energy Affects the Surf Zone Heat Budget

by C. Minnehan 5 February 201525 January 2023

A study of water temperature in nearshore environments shows that wave energy was the second-largest driver of temperature changes in the surf zone.

Posted inResearch Spotlights

Seismic Wave Modeling Goes Local

by E. Betz 5 February 201513 April 2022

A new technique brings accurate models of traveling seismic waves to a regional scale.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
Earth’s Future
“How to Build a Climate-Resilient Water Supply”
By Rachel Fritts

EDITORS' HIGHLIGHTS
AGU Advances
“How Do Atmospheric Rivers Respond to Extratropical Variability?”
By Sarah Kang

EDITORS' VOX
Reviews of Geophysics
“Rare and Revealing: Radiocarbon in Service of Paleoceanography”
By Luke C. Skinner and Edouard Bard

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