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Geophysical Research Letters

Visit the journal.

Posted inResearch Spotlights

Circulation a Key Factor in Mediterranean Algal Growth

by J. Orwig 23 December 20146 June 2022

Scientists use satellite and robotic field data to study the environmental conditions driving phytoplankton blooms in the northwestern Mediterranean Sea.

Posted inResearch Spotlights

Seafloor Changes Above the Tohoku-Oki Earthquake Rupture Zone

by J. Orwig 19 December 20148 December 2022

Three years after the devastating earthquake, transponders record afterslip deformation on the seabed above the Tohoku-Oki rupture zone.

Posted inResearch Spotlights

El Niño Fades Without Westerly Wind Bursts

by E. Betz 16 December 201425 January 2023

Pacific Ocean conditions brought El Niño winter forecasts in early 2014, but the chances faded by late summer. New research places blame on shifting winds.

Posted inResearch Spotlights

What Causes Nitric Oxide to Infiltrate the Ozone Layer?

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 9 December 201420 January 2023

Processes in the polar atmosphere can cause nitric oxide (NO)-enriched air to descend and destroy stratospheric ozone. Scientists explore one cause of these NO fluxes, stratospheric sudden warming.

Posted inResearch Spotlights

Uncertainty in Deforestation’s Effects on Amazonian Climate

by C. Schultz 9 December 20142 November 2021

The strength of land-atmosphere coupling in a given model influences how it represents deforestation’s effects.

Posted inResearch Spotlights

Trapping Waves in Earth's Plasmasphere

by E. Betz 9 December 201421 February 2023

Satellite observations explain why magnetosonic waves can be found in regions far from where they originate.

Posted inResearch Spotlights

A Dearth of Hurricanes Cannot Explain Maya Collapse

by C. Schultz 2 December 201429 September 2022

Mud layers in a stalagmite from a cave on the Yucatán Peninsula show hurricane activity was steady or elevated throughout the Maya collapse.

Ocean acidification in the Great Barrier Reef
Posted inResearch Spotlights

Ocean Acidification Worse in Coral Reefs

by E. Betz 2 December 201412 September 2022

The rate of ocean acidification in coral reefs outpaces the rise in carbon dioxide in Earth’s atmosphere.

Posted inResearch Spotlights

Upper Atmosphere Has Cooled Steadily for Three Decades

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 25 November 201423 January 2023

Scientists projected that the upper atmosphere would continue to cool and contract with rising greenhouse gas emissions. Now, these projections have been confirmed for the first time.

Posted inResearch Spotlights

Measuring Rainfall in West Africa Using Cellular Networks

by J. Orwig and Faith Ishii 25 November 201418 February 2022

Scientists demonstrated that rainfall can be monitored using the network of cellular towers throughout West Africa.

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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

Forty Thousand Cubic Meters of Fresh Water Flow from the Congo into the Atlantic Every Second. A New Study Traces Where It Goes from There.

2 July 20262 July 2026
Editors' Highlights

Fluid-Driven Reactions Restore Fault Strength Between Earthquakes

30 June 202630 June 2026
Editors' Vox

Small-Scale Indian Ocean Dynamics Underpin Marine Ecology and Climate

4 June 20263 June 2026
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