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dams & reservoirs

A dredge works through the night to clear shoaling along the Mississippi River at New Orleans.
Posted inFeatures

High Water: Prolonged Flooding on the Deltaic Mississippi River

by N. M. Gasparini and B. Yuill 20 March 202027 October 2022

Changing climate and land use practices are bringing extended periods of high water to the lower Mississippi River. New management practices are needed to protect people, industry, and the land.

Anthropologists set up a total station to study a Khmer city complex.
Posted inNews

Poor Water Management Implicated in Failure of Ancient Khmer Capital

Rachel Fritts, Science Writer by Rachel Fritts 3 February 20203 November 2022

Researchers used remote sensing technologies to map Koh Ker’s buried reservoir and calculate its capacity to hold water during the rainy season.

Photo of the Sault Brénaz Dam on the Rhone River in France
Posted inNews

Europe’s Rivers Are the Most Obstructed on Earth

Katherine Kornei, Science Writer by Katherine Kornei 31 January 20209 May 2022

By analyzing satellite imagery of rivers worldwide, researchers have pinpointed over 35,000 obstructions like dams and locks that affect an environment’s ecology, hydrology, and water resources management.

Irrigation machinery sprays water on the green vegetation of a mango farm in South Africa.
Posted inNews

Minireservoirs Could Save Farmers with Sandy Soils

Kate Wheeling, freelance science writer by Kate Wheeling 29 January 202031 October 2022

A recently revived subsurface water retention technology could conserve water and drastically increase crop yields in arid landscapes with sandy soils like sub-Saharan Africa.

Four charts showing optimal habitats in the floodplain for different stream insects.
Posted inEditors' Highlights

Hydropower and Bugs

by E. Wohl 16 December 201928 February 2023

Alpine hydropower plants commonly flush sediment that accumulates at intakes, but the associated rapid rise in discharge, turbidity, and streambed instability put aquatic insects at risk.

A raft’s eye view of rapids on the Colorado River in the Grand Canyon
Posted inFeatures

Will Earth’s Grandest Canyon Keep Getting Grander?

Mary Caperton Morton, Science Writer by Mary Caperton Morton 19 November 20193 November 2021

Living in Geologic Time: Rafting through the past, present, and future of the Colorado River and the Grand Canyon.

Workers excavate an earthy cliff beneath grassy turf.
Posted inNews

Historic Solutions to Sea Level Rise May Help Modern Communities

Sarah Derouin, Science Writer by Sarah Derouin 22 May 201910 February 2022

Earthen mounds helped ancient Dutch settlers thrive in coastal flood zones. Could historical engineering help us fight against rising seas?

Mekong River in Laos
Posted inNews

Where Did All the Free-Flowing Rivers Go?

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 8 May 201927 April 2022

A map of the world’s free-flowing rivers shows a shrinking number can still meander as they please. New plans for hydropower will further constrain flow.

A stream flowing down a valley
Posted inResearch Spotlights

Modeling River Boulders to Improve Hydropower Sustainability

Aaron Sidder, freelance science writer by Aaron Sidder 30 April 20199 March 2023

Large stones in streams provide crucial habitat for fish. Modeling the boulders and streamflow offers fresh insights into how water engineering projects alter aquatic habitats.

Electric lights illuminate the Nile and its delta in this satellite image captured at night.
Posted inFeatures

The Renaissance of Hydrology

by V. Gabrielle 28 March 201927 October 2022

Hydrology has evolved as a transdisciplinary, data-driven science in a remarkably short period of time.

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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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