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Research Spotlights

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

Researchers examine the mechanics behind a deadly rock avalanche in China.
Posted inResearch Spotlights

What Causes Rock Avalanches?

by Terri Cook 24 April 201710 March 2023

Experimental studies of frictional weakening beneath a deadly rock avalanche in China help to clarify the mechanisms that cause these devastating natural disasters.

A new study uncovers the influence of sediments from high-discharge events on the transfer of momentum between water layers in the Guadalquivir River Estuary.
Posted inResearch Spotlights

Dam Discharge Events Alter Water Flow in an Estuary in Spain

Sarah Stanley, Science Writer by Sarah Stanley 24 April 20171 February 2023

Three-year observations suggest that increased sediment concentrations inhibit vertical transfer of momentum between water layers for more than 2 months after a high-discharge event.

Elder Creek in the Eel River watershed of northern California.
Posted inResearch Spotlights

Lab Tests Probe the Secrets of Steep and Rocky Mountain Streams

by S. Witman 21 April 201727 April 2022

Researchers built a glass-encased test environment that helps them assess streamflow without the confounding factors introduced by bed forms.

Researchers untangle how large-scale convection scales respond to changes in atmospheric ozone.
Posted inResearch Spotlights

Could Stratospheric Ozone Depletion Make Hadley Cells Expand?

by S. Witman 21 April 20171 March 2023

Convection-driven Hadley cells are expanding poleward. Scientists now may have uncovered part of the reason why.

Aerosol concentrations in different regions of eastern China are impacted differently by El Niña.
Posted inResearch Spotlights

La Niña Subtype May Have a Big Impact on Aerosols in China

Sarah Stanley, Science Writer by Sarah Stanley 19 April 201713 February 2023

During a newly identified "flavor" of La Niña called La Niña Modoki, aerosol concentrations over different regions of eastern China may depend heavily on the strength of the event.

A new numerical model tracks the speed and pathway of a dike propagating through the Earth’s crust.
Posted inResearch Spotlights

An Improved Model of How Magma Moves Through the Crust

by Terri Cook 18 April 201717 November 2022

Researchers have developed a new numerical model that can, for the first time, solve for both the speed and the path of a propagating dike.

Maple forest in winter.
Posted inResearch Spotlights

As Winters Get Warmer, Sugar Maples May Absorb Less Silicon

Sarah Stanley, Science Writer by Sarah Stanley 17 April 20179 December 2021

Rising temperatures that reduce snow cover leave soils vulnerable to frost, reducing silicon uptake by trees, with potential effects on downstream ecosystems.

Researchers examine the exchange of carbon dioxide between the air and water in an Arctic region where thick ice has prevented ship passage.
Posted inResearch Spotlights

How Arctic Ice Affects Gas Exchange Between Air and Sea

Sarah Stanley, Science Writer by Sarah Stanley 14 April 20179 August 2022

Scientists begin to fill a major data gap by investigating carbon dioxide dynamics in a remote region of the Arctic Ocean.

Posted inResearch Spotlights

Better Estimates of Clouds' Climate Effects Are on the Horizon

Sarah Stanley, Science Writer by Sarah Stanley 14 April 201729 March 2023

A recent update to an algorithm for processing satellite data could improve understanding of the variable climate effects of clouds composed of different amounts of ice and liquid.

Researchers use zircon dating to unravel the processes behind the Toba supereruption.
Posted inResearch Spotlights

What Led to the Largest Volcanic Eruption in Human History?

by S. Witman 13 April 201716 March 2022

A mineral-dating project at the Toba caldera in Indonesia sheds light on the science of supereruptions.

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Newer posts 1 … 136 137 138 139 140 … 197 Older posts
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