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monitoring networks

Aerial image of glaciers in the Southern Alps in New Zealand, taken during the annual snowline survey
Posted inNews

First Global Comparison of Glacier Mass Change: They’re All Melting, and Fast

by Veronika Meduna 15 April 202515 April 2025

By systematically assessing data gathered by different methods, researchers refined estimates of global glacier melt and its contribution to sea level rise.

The Los Angeles River passes under a bridge at sunset.
Posted inNews

Seismometers Provide Fuller Picture of Los Angeles Groundwater

by Grace van Deelen 19 March 202519 March 2025

A new method to evaluate deep aquifers shows even torrential rains haven’t fully replenished groundwater beneath Los Angeles.

A screenshot from the Internet Archive’s Wayback Machine taken on 4 March of the AirNow.gov webpage archived on 17 February. The image shows a map of the world with colored dots indicting air quality monitored around the world.
Posted inResearch & Developments

404: Air Quality Data from U.S. Embassies Removed

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 5 March 20255 May 2025

On 4 March, AirNow, the home of the U.S. Air Quality Index, shut down its webpage that reported data from air quality monitors at U.S. embassies and consulates around the world. Eos learned of the removal of these data from Dan Westervelt, a climate change and pollution scientist at Columbia University’s Lamont Doherty Earth Observatory in Palisades, New York.

An image of a tree in a field taken by a thermal imaging camera, with cooler to warmer temperatures denoted by a spectrum of colors from blue to red
Posted inScience Updates

Sensing Potential, Scientists Refine Thermal Imaging of Ecosystems

by Jen L. Diehl, Benjamin C. Wiebe, Mostafa Javadian, Stephanie Pau and Andrew D. Richardson 7 February 20257 February 2025

At a recent “bake-off,” researchers judged thermal infrared cameras and developed guidelines for their consistent use in studying vegetation temperatures, which illuminate vital ecosystem processes.

Map from the article.
Posted inEditors' Highlights

Filling the Gaps: Context and Design of Arctic Carbon Flux Measurement Networks

by Patrick Crill 24 January 202524 January 2025

Large scale observational networks are necessary for understanding the impact of a warming climate in the Arctic, but critical tools are crucial to how those networks are designed.

A metal pole with a small gray-green dome, anchored to bare rock. Glacial ice is visible in the background.
Posted inNews

Greenland Ice Sheet Stores Hidden Water Throughout the Melt Season

by Matthew R. Francis 19 December 202419 December 2024

A new method uses stations around Greenland’s coast to measure how much meltwater weighs down the bedrock beneath the ice, improving our understanding of its contribution to sea level rise.

Volcanic eruption with steam rising from a snow-covered peak.
Posted inNews

Alaska’s Mount Veniaminof Volcano Is Stealthy—Here’s Why

by Gaea Cabico 18 December 202418 December 2024

New research explains why Mount Veniaminof erupts without the usual warming signs.

View of a dense city with buildings on hills in the background.
Posted inNews

The Breath of Colonialism Continues to Taint the Air in Uganda

by Rita Aksenfeld 12 December 202412 December 2024

Potentially harmful air quality in Kampala, Uganda, follows the borders of segregated settlements from Africa’s colonial era.

View of a starry night sky with streaks of white and yellow through the center. Front-lit palm trees appear in the foreground.
Posted inNews

Seismometers Track Atmospheric Shock Waves from Incoming Space Debris

by Farah Aziz Annesha 9 December 202417 December 2024

A Chinese spacecraft that burned up high over Los Angeles created a sonic trail detected by ground-based sensors.

Photo of researchers deploying an Argo float.
Posted inEditors' Highlights

Are Rogue Argo Floats Skewing Ocean Salinity Data Products?

by Lei Zhou 19 November 202418 November 2024

Global ocean salinity products have become increasingly inconsistent since 2015, coinciding with a drift to higher salinity values in a number of Argo sensors.

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Features from AGU Publications

Research Spotlights

Mapping the Ocean Floor with Ancient Tides

6 May 20256 May 2025
Editors' Highlights

First Benchmarking System of Global Hydrological Models

7 May 20257 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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