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watersheds

A satellite view of a portion of Earth shows the planet’s curved horizon at the top of the image. Green and brown landmasses are cut by two large, blue, winding rivers that empty into the ocean in the foreground. Clouds are visible on the edges of the image.
Posted inResearch Spotlights

New River Chemistry Insights May Boost Coastal Ocean Modeling

Sarah Stanley, Science Writer by Sarah Stanley 9 January 20269 January 2026

By more realistically accounting for river inputs, researchers reduced overestimation of the amount of carbon dioxide absorbed by coastal waters.

A wetland in a green field under a blue sky.
Posted inNews

After Sackett, a Wisconsin-Sized Wetland Area Is Vulnerable 

by Grace van Deelen 5 January 20265 January 2026

An analysis of wetland legal frameworks shows how water rules could leave millions of hectares without meaningful protections.

A windswept, snow-covered alpine pass with mountains in the background under a blue sky
Posted inFeatures

Satellite Radar Advances Could Transform Global Snow Monitoring

by Randall Bonnell, Jack Tarricone, Hans-Peter Marshall, Elias Deeb and Carrie Vuyovich 24 December 202524 December 2025

The recent SnowEx campaign and the new NISAR satellite mission are lighting the way to high-resolution snowpack monitoring and improved decisionmaking in critical river basins around the world.

A handful of people standing in a broad grassy area use a tall tool to collect a soil core. Behind them is a row of evergreen trees and a blue sky.
Posted inNews

Blending Science and Indigenous Knowledge to Tell an Estuary’s Story

by Stella Mayerhoff 23 December 202523 December 2025

A new study of nutrient levels in soil cores supports oral Indigenous history, informing future estuary restoration efforts.

A small river bordered by rocky beaches and trees, which are also reflected in the river.
Posted inResearch Spotlights

Watershed Sustainability Project Centers Place-Based Research

by Madeline Reinsel 4 December 20254 December 2025

A community science project supports an innovative watershed management plan.

Drone image of beaver pond complex in Wyoming. A group of around five humans stands on a rock near the pond’s edge on a sunny day. Green wetland vegetation rings the open ponds of water, with beaver dams visible across the stream. Vegetation on either side of the stream is in drier conditions, visible by species and color of soil and plants.
Posted inNews

What Makes Beaver Ponds Bigger?

by Mack Baysinger 18 September 202518 September 2025

For the first time, researchers are able to add hydrologic estimates to find where reintroducing beavers could best benefit a watershed and the humans who live within it.

The floor of a foggy forest is covered in orange and brown leaves. In the middle distance, two researchers are taking measurements of a narrow stream.
Posted inResearch Spotlights

The “Surprising” Effect of Drying Headwaters on Nitrogen Dynamics

by Saima May Sidik 15 April 202515 April 2025

Contrary to predictions, spring rains caused a decrease in nitrogen at watershed outflows in Alabama.

Map of a study region and photo of a canoe in a river.
Posted inEditors' Highlights

Strange Branching of Water Flows Through Rivers and Lakes

by Georgia Destouni 8 April 20253 April 2025

Sometimes rivers split into branches in unusual ways, reflecting the complexity of Earth’s water system on land and how much we still must learn about it.

China’s Yellow River flowing in a large valley
Posted inResearch Spotlights

Tracing Metals from Earth to Water to Life in the Yellow River

by Nathaniel Scharping 29 January 202529 January 2025

The mix of metals in China’s Yellow River stays relatively similar as it moves from the upper continental crust to biological life.

View of a wide creek surrounded by trees
Posted inNews

Mobile Bay Has More Branching Brooks Than Shown on Federal Maps

by Mark DeGraff 16 December 202416 December 2024

A more accurate charting of the full extent of stream networks will help land managers better protect U.S. creeks and rivers.

Posts pagination

1 2 3 … 6 Older posts
Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

Features from AGU Publications

Research Spotlights

Making a Map to Make a Difference

11 February 202611 February 2026
Editors' Highlights

A New Way to Measure Quartz Strength at High Pressure

13 February 202612 February 2026
Editors' Vox

A Double-Edged Sword: The Global Oxychlorine Cycle on Mars

10 February 202610 February 2026
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