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Geophysical Research Letters

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An aerial view of the massive Katla glacier, which might be a bigger source of CO2 than previously estimated
Posted inResearch Spotlights

Volcano in Iceland Is One of the Largest Sources of Volcanic CO2

by Terri Cook 8 November 201815 November 2022

High-precision airborne measurements, in combination with atmospheric modeling, suggest that the Katla subglacial caldera may be one of the planet’s biggest sources of volcanic carbon dioxide.

An updated Antarctic Magnetic Anomaly Map helps researchers study the structure of lithosphere around the South Pole.
Posted inResearch Spotlights

A More Detailed Look at Earth’s Most Poorly Understood Crust

by Terri Cook 24 October 20187 February 2023

The second-generation Antarctic Digital Magnetic Anomaly Project offers a powerful new tool for probing the structure and evolution of the southernmost continent’s lithosphere.

A woman draws water from a well in northern India, where unsustainable aquifers are vulnerable to drought conditions.
Posted inResearch Spotlights

A Closer Look at the Sustainability of Our Groundwater Aquifers

by L. Strelich 19 October 20186 February 2023

Researchers use a new approach to assessing the world’s largest aquifers in hopes of improving groundwater management during drought periods.

Posted inEditors' Highlights

Can Coastal Surface Currents Improve Hurricane Forecasts?

by Suzana Camargo 18 October 201811 January 2023

An idealized model explores whether hurricane intensity forecasts could potentially be improved by incorporating coastal surface currents data.

Satellite image showing how dissolved organic matter influences ocean color.
Posted inResearch Spotlights

Yellow Detritus in the Oceans May Help Reduce Warming

Aaron Sidder, freelance science writer by Aaron Sidder 25 September 20181 February 2023

Dissolved organic matter in the oceans absorbs light near the water’s surface, leading to cooler waters that may help mitigate regional climate warming.

Satellite image of Point Barrow, Alaska. A 40-year record of carbon dioxide concentrations in Alaska offers insight into how the carbon cycle responds to temperature.
Posted inResearch Spotlights

Autumn Warming No Longer Accelerating Carbon Loss in the North

by Terri Cook 21 September 201824 February 2023

An analysis of Point Barrow’s 40-year record points to the importance of calculating the carbon cycle’s response to temperature during the northern latitudes’ non-growing season.

Posted inEditors' Highlights

A New Spin on Grain Segregation in Fault Zones

by G. P. Hayes 14 September 20186 October 2021

Fine-grained layers in sheared fault gouge may be formed by shear-driven size-segregation in granular materials, rather than by shear localization.

Posted inEditors' Highlights

Insensitivity of Total Sediment Flux to Hydraulic Details

by Valeriy Ivanov 6 September 201830 March 2023

The total sediment mass transported by flow under different sets of regimes is insensitive to the exact details of hydraulic forcing, but what matters is cumulative transport capacity.

https://doi.org/10.1029/2018GL077527
Posted inEditors' Highlights

Smaller Eddies Found Within Eddies

by J. Sprintall 27 August 201822 July 2022

A glider survey observed three small eddies embedded within a larger scale eddy associated with the Loop Current in the Gulf of Mexico.

A new modeling approach offers insights into the mechanics of important climate feedbacks.
Posted inResearch Spotlights

New Modeling Framework Improves Radiative Feedback Estimates

Aaron Sidder, freelance science writer by Aaron Sidder 23 August 201824 March 2023

A new approach offers insights into the relationship between surface temperature and top-of-atmosphere energy imbalances and improves the understanding of important climate feedbacks.

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