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Research Spotlights

Research spotlights are plain-language summaries of recent articles published in AGU’s suite of 24 journals.

Diagram of oxygen concentrations at 350 meters depth that shows the oxygen deficient zone, or shadow zone, in the eastern tropical North Pacific Ocean
Posted inResearch Spotlights

How the Ocean’s “Shadow Zone” Breathes

by E. Underwood 28 August 201922 December 2021

A new study uses Argo floats and an ocean circulation model to track the sources supplying pulses of oxygen to the deep North Pacific.

Schematic showing the basic shape and properties of the heliosphere, the protective magnetic bubble created by the solar wind
Posted inResearch Spotlights

Sampling the Space Between the Stars

by Mark Zastrow 19 August 201916 November 2021

Data from the Cassini and Voyager spacecraft reveal new information about the Sun’s magnetic bubble.

A view from orbit of part of Earth’s surface
Posted inResearch Spotlights

Past Climate Sensitivity Not Always Key to the Future

by Terri Cook 13 August 201924 March 2023

New research suggests that changes in continental configuration, solar brightness, and background atmospheric carbon dioxide levels all conspire to drive Earth’s climate sensitivity over geologic time.

Snow blankets East Gros Ventre Butte, just west of Jackson, Wyo., in the Upper Snake River Basin
Posted inResearch Spotlights

Capturing Snowmelt Patterns from Cloudy Satellite Images

Sarah Stanley, Science Writer by Sarah Stanley 2 August 201925 October 2022

A new modeling strategy could improve streamflow predictions in places where mountain snow is a critical source of water.

Diagram showing the locations and deploying countries of more than 1,400 sea surface temperature-measuring ocean drifters
Posted inResearch Spotlights

Updating a Crucial Source of Sea Surface Temperature Data

by Terri Cook 31 July 201918 October 2022

A new version of a major sea surface temperature data set reduces systematic errors in measurements of one of the most important indicators of the state of Earth’s climate system.

Wispy cirrus clouds hover high above an open farm field.
Posted inResearch Spotlights

A Better Way to Measure Cloud Composition

by E. Underwood 30 July 201925 July 2022

An enhanced satellite remote sensing suite accurately measures ice particles, temperature, and water vapor.

An ocean wave breaks, sending sea spray into the air.
Posted inResearch Spotlights

Detailed Origins of Sea Spray Revealed, One Droplet at a Time

Aaron Sidder, freelance science writer by Aaron Sidder 29 July 20193 December 2021

An energized air-sea interface facilitates exchange between the atmosphere and the ocean. A new study looks at the formation of sea spray, an important component of this exchange.

An illustration showing microscopic colloidal particles adhered to sand grains in an aquifer from which groundwater is being pumped to the surface via a well.
Posted inResearch Spotlights

Treating Colloids as Clusters Better Predicts Their Behavior

by Terri Cook 25 July 20196 February 2023

New research suggests that an accurate prediction of colloidal particle mobilization in the environment should account for the effect of clustering.

Cumulus congestus clouds like these are usually a sign of incoming rain.
Posted inResearch Spotlights

One Step Closer to a Milestone in Climate Modeling

by David Shultz 24 July 20196 March 2023

A pair of revisions to the Energy Exascale Earth System Model improves its ability to capture late afternoon and nocturnal rainfall as well as the timing and movement of convection.

Lake Chad as seen from Apollo 7 in 1968
Posted inResearch Spotlights

The Ups and Downs of Rainfall in Chad Since 1950

by David Shultz 24 July 201910 March 2023

A new study finds that rainfall rates are recovering in some cities since a 1966–1990 dry spell, but precipitation is still down overall since 1950.

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Features from AGU Publications

Research Spotlights

How Plants Respond to Scattered Sunlight

14 July 202514 July 2025
Editors' Highlights

The Power of Naming Space Weather Events

10 July 20258 July 2025
Editors' Vox

Water Tracks: The Veins of Thawing Landscapes

25 June 202525 June 2025
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