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water cycle

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.

Aerial photo of a golf course in a hilly desert
Posted inNews

Many Water Cycle Diagrams Promote Misconceptions

Katherine Kornei, Science Writer by Katherine Kornei 13 June 201911 January 2023

Most representations of the water cycle are flawed, researchers found by analyzing over 450 diagrams: The effects of humans, seasonal changes, and different biomes are often neglected.

The south fork of the Eel River in California
Posted inResearch Spotlights

Answer to California Landscape Riddle Lies Underground

Elizabeth Thompson by Elizabeth Thompson 30 May 201915 November 2021

Scientists link vegetation mosaics in California to patterns of weathered bedrock.

A horizon on the ocean
Posted inNews

Ice Drove Past Indo-Pacific Climate Variance

Sarah Derouin, Science Writer by Sarah Derouin 2 April 20192 March 2023

Researchers used both terrestrial and marine proxy data to reconstruct the dramatic and dynamic climatic changes.

Twilight in the Tapajós National Forest, seen from an observation tower
Posted inResearch Spotlights

A Simplified Model of Water Vapor Exchange in the Amazon

Aaron Sidder, freelance science writer by Aaron Sidder 27 March 20195 September 2023

Evapotranspiration is the exchange of water vapor between land and the atmosphere, and it is hard to measure and model. A new study shows promise for its estimation over large, vegetated landscapes.

Posted inEditors' Highlights

Using Radioactive Tracers to Determine the Ages of Streamflow

by Ilja van Meerveld 18 March 20197 March 2022

Radioactive isotope tracers can be used to determine the relationship between the ages of water that is stored in soil and bedrock, water in streams, and the water used by vegetation.

Dry Creek in South Australia, flooded after a heavy rain
Posted inResearch Spotlights

Balancing Robustness and Cost in Hydrological Model Optimization

by E. Underwood 6 February 201930 March 2023

A new study presents a framework for finding the best optimization algorithm.

Posted inEditors' Vox

Peering into Pores: What Happens When Water Meets Soil?

by C. Zhang and N. Lu 28 January 20193 December 2021

New research sheds light on the long-standing puzzle of how and why soil water density differs from free water density.

A view of Yellowknife Bay in Mars’s Gale crater
Posted inResearch Spotlights

Researchers Bring Early Martian Water Chemistry to Life

Sarah Stanley, Science Writer by Sarah Stanley 25 January 20193 January 2023

Lab experiments constrain conditions necessary for a key mineral to have formed in ancient lagoons and a crater lake.

A boreal landscape in northern Sweden, the focus of new research on the carbon cycle
Posted inResearch Spotlights

Organic Particles Affect Carbon Cycling in Boreal Waters

Aaron Sidder, freelance science writer by Aaron Sidder 2 January 201928 March 2023

Dissolved organic carbon receives much of the focus in aquatic research, but a new study suggests that bulkier particulate matter may play a significant role in regulating carbon dioxide emissions.

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A view of a bridge, with the New Orleans skyline visible in the distance between the bridge and the water. A purple tint, a teal curved line representing a river, and the text “#AGU25 coverage from Eos” overlie the photo.

Features from AGU Publications

Research Spotlights

Denitrification Looks Different in Rivers Versus Streams

16 January 202616 January 2026
Editors' Highlights

Kyanite Exsolution Reveals Ultra-Deep Subduction of Continents

23 January 202622 January 2026
Editors' Vox

Bridging the Gap: Transforming Reliable Climate Data into Climate Policy

16 January 202616 January 2026
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