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rivers

Two plots comparing seasonal variability in mussel stable isotope values from the periostracum with measured suspended particulate organic matter, used to reconstruct the isotopic composition of suspended particulate organic matter.
Posted inEditors' Highlights

Tracking Excess Nitrogen with Freshwater Mussels

by Branwen Williams 30 April 20218 March 2023

Mussel shell periostracum and carbonate bound organic matter document seasonal variability in the isotopic composition of riverine suspended particulate organic matter.

The restored floodplain of the South Fork McKenzie River in Oregon
Posted inEditors' Vox

Why Rivers Need Their Floodplains

by E. Wohl 22 April 202122 August 2023

Floodplain storage of water, nutrients, and sediment is critical to sustaining river ecosystems but has been reduced by human activities.

The Emme River in Switzerland
Posted inResearch Spotlights

Tracing Water from River to Aquifer

Aaron Sidder, freelance science writer by Aaron Sidder 20 April 20216 February 2023

A new technique using dissolved noble gas tracers sheds light on how water moves through an aquifer, with implications for water resources and their vulnerability to climate change.

Two figures comparing organic carbon fluxes in a natural river (top) versus an engineered river with artificial levees (bottom).
Posted inEditors' Highlights

How River Engineering Alters Carbon Cycling

by Susan Trumbore 23 March 202127 January 2022

Artificial levees in the Lower Mississippi River bypass floodplain processing and increase delivery of carbon to the ocean.

A rhododendron bush blooms pink flowers in front of the New River Gorge.
Posted inFeatures

The New River Gorge: Ancient River, Old Mines, New National Park

Mary Caperton Morton, Science Writer by Mary Caperton Morton 11 March 202129 September 2021

Living in Geologic Time: Regrowth and resiliency bring new accolades to one of the world’s oldest rivers.

Two maps of the Missouri river basin showing estimates of river discharge in a hydrological model (top) and when the model incorporates satellite data (bottom).
Posted inEditors' Highlights

Gauging Ungauged River Basins with Smart Remote Sensing

by Marc F. P. Bierkens 10 March 202115 March 2023

A clever combination of hydrologic modelling and discharge estimates from the Landsat satellite provides good discharge estimates throughout the Missouri river basin.

Observed median July temperatures in eleven headwater streams by the Agashashok, Cutler, and Imelyak rivers in the Noatak river basin.
Posted inEditors' Highlights

Thawing Permafrost May Cause Streams to Cool

by D. Moore 3 March 20213 March 2023

Permafrost thawing associated with climate warming increases contributions to streamflow by deeper, cooler groundwater flow paths, which may result in lower summer stream temperatures.

The steps of Har Ki Pauri lead down to the banks of the Ganges in Haridwar, India.
Posted inNews

Pharmaceuticals Pollute the Ganges

by T. V. Padma 4 February 20212 June 2025

Scientists report a cocktail of antibiotics, anti-inflammatory drugs, and personal care products found near two pilgrimage cities along the river.

Watery mud accumulates between rows of crops.
Posted inNews

European Colonists Dramatically Increased North American Erosion Rates

Rachel Fritts, Science Writer by Rachel Fritts 11 January 202124 February 2022

Around 200 years ago, when conversion of land for agriculture became more widespread, the amount of sediment accumulating in riverbeds across the continent jumped tenfold.

Stream surrounded by grassland.
Posted inNews

Waterways Change as Cities Grow Nearby

Katherine Kornei, Science Writer by Katherine Kornei 17 December 20206 September 2022

Using multidecadal data sets, researchers have traced how urbanization affects streamflow across the continental United States.

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A view of a Washington, D.C., skyline from the Potomac River at night. The Lincoln Memorial (at left) and the Washington Monument (at right) are lit against a purple sky. Over the water of the Potomac appear the text “#AGU24 coverage from Eos.”

Features from AGU Publications

Research Spotlights

Coherent, Not Chaotic, Migration in the Brahmaputra-Jamuna River

2 July 20252 July 2025
Editors' Highlights

The Mid-20th Century Winter Cooling in the Eastern U.S. Explained

3 July 20253 July 2025
Editors' Vox

Water Tracks: The Veins of Thawing Landscapes

25 June 202525 June 2025
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