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AGU Advances

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Photo of clouds with a sunset in the background.
Posted inEditors' Highlights

Characterizing the Space Between Clouds and Clear Sky

by Susan Trumbore 7 February 20257 February 2025

The area near clouds is often classified as ‘clear sky’, but a new study demonstrates the potential biases of misclassifying these transition zones and their significance for Earth’s energy budget.

A rock formation with many layers sits beneath a blue sky.
Posted inResearch Spotlights

Ancient Climate Reconstruction Links Past and Future

Aaron Sidder, freelance science writer by Aaron Sidder 4 February 20254 February 2025

A new map of climate conditions during the Pliocene epoch—the last time Earth’s carbon dioxide concentrations hit 400 parts per million—could offer clues about possible climatic changes in store for the 21st century.

Four graphs from the study.
Posted inEditors' Highlights

How Southern Ocean Currents Modulate Global Biogeochemical Cycles

by Susan Trumbore 14 January 202514 January 2025

Swirling currents called mesoscale eddies occupy about 22% of the ice-free Southern Ocean. Using data from drifting floats and satellites, scientists report the impact these eddies have on biogeochemical cycles.

A side-by-side image of Earth and Mars.
Posted inEditors' Highlights

Mars and Earth: A Tale of Two Energy Budgets

by Xi Zhang 9 January 20259 January 2025

The first view of Mars’ latitudinal radiant energy budget reveals stark contrast with Earth’s energy distribution, offering new insights into each planet’s unique energy dynamics.

Diagram from the study.
Posted inEditors' Highlights

Wave-Modulated Electron Loss Affects GPS Location Determination

by Mary Hudson 7 January 202520 December 2024

Earth’s magnetosphere controls ionospheric total electron content modulation via plasma wave-induced electron loss impacting GPS spatial location determination.

A flattened image of Earth’s globe, with swirling clouds seen in much of the atmosphere.
Posted inResearch Spotlights

Bringing Climate Change’s Effects on Atmospheric Circulation to Light

by Nathaniel Scharping 20 December 202420 December 2024

A lengthening observational record is being used to test predictions and improve understanding of the mechanisms behind changing circulation.

Image of an underwater volcano.
Posted inEditors' Highlights

Imaging Magma from Afar

by Peter Zeitler 20 December 202419 December 2024

Reservoirs of magma and fluids in the crust create gravity anomalies detectable by altimetry, which can help find submarine volcanoes and provide key insights into their depth, shape and volume.

Illustrations from the study.
Posted inEditors' Highlights

Magma Diversity in Iceland

by Peter Zeitler 19 December 202419 December 2024

Iceland’s recent basalt eruptions originated at the crust-mantle boundary and show chemical variability over remarkably short timescales of weeks, suggesting exchanges between diverse magma sources.

A smokestack emits smoke, which blocks out the Sun and is lit up against a blue and orange sky.
Posted inResearch Spotlights

Aerosols Could Be Weakening Summertime Circulation

by Rebecca Owen 18 December 202418 December 2024

Anthropogenic aerosol emissions may be a culprit behind weakening jet streams and weather systems in the Northern Hemisphere.

Imagen de un bosque en donde varios árboles se han caído o están descansando sobre otros
Posted inResearch Spotlights

Las tormentas están tirando cada vez más árboles

by Nathaniel Scharping 13 December 202413 December 2024

La cantidad de árboles derribados por el viento ha incrementado casi cuatro veces en la región, probablemente por tormentas más fuertes.

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Features from AGU Publications

Research Spotlights

Denitrification Looks Different in Rivers Versus Streams

16 January 202616 January 2026
Editors' Highlights

ALMA’s New View of the Solar System

16 January 202616 January 2026
Editors' Vox

Bridging the Gap: Transforming Reliable Climate Data into Climate Policy

16 January 202616 January 2026
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