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dams & reservoirs

High water flow in the Brahmaputra River
Posted inScience Updates

When Floods Cross Borders, Satellite Data Can Help

by F. Hossain, M. Bonnema, N. Biswas, S. Ahmad, B. Duong and N. D. Luong 15 February 201910 March 2023

With so many eyes in the sky, residents living downstream from dams now have many ways to see—and prepare for—potential dangers.

A new study shows the role of small, still-water wetlands in combating algae growth.
Posted inResearch Spotlights

Small Wetlands Retain Lion’s Share of Nutrients

by S. Witman 31 July 201721 December 2022

Still-water ecosystems are key to combating explosive algae growth.

A new study uncovers the influence of sediments from high-discharge events on the transfer of momentum between water layers in the Guadalquivir River Estuary.
Posted inResearch Spotlights

Dam Discharge Events Alter Water Flow in an Estuary in Spain

Sarah Stanley, Science Writer by Sarah Stanley 24 April 20171 February 2023

Three-year observations suggest that increased sediment concentrations inhibit vertical transfer of momentum between water layers for more than 2 months after a high-discharge event.

A dredge (right) deepens the shipping channel to the port of Savannah, Ga., in 2015.
Posted inNews

Water Infrastructure Needs Get Bipartisan Nod at House Hearing

by Randy Showstack 15 March 201720 April 2023

A letter released at the event calls on President Donald Trump to ensure that money from a national harbor maintenance fund is used solely to improve ports and harbors.

A city employee checks on the pumps as a sandbag wall keeps flood waters from the Illinois River at bay in January 2016.
Posted inNews

Key House Member Makes a Conservative's Case for Water Projects

by Randy Showstack 13 March 201723 March 2023

The White House and Democrats want to see an infrastructure package move through Congress. One House subcommittee chairman intends to make sure that water resource projects are part of the plan.

Snow drought, seen here on slopes that should have snow.
Posted inOpinions

Defining Snow Drought and Why It Matters

by A. A. Harpold, M. Dettinger and S. Rajagopal 28 February 201723 January 2023

Swings from snow drought to extreme winter rainfall make managing reservoirs, like the Oroville Dam, incredibly difficult. But what exactly is "snow drought"?

The Enguri Dam, nestled in the highly seismic mountains of the Caucasus, is surrounded by steep, landslide-prone slopes.
Posted inScience Updates

International Effort Tackles Landslide Hazards to Keep the Peace

by A. Tibaldi and N. Tsereteli 30 January 201713 January 2022

Earth scientists work with the North Atlantic Treaty Organization to help keep a border-straddling hydroelectric power plant on the Black Sea coast safe from landslides.

Processes like mining and drilling tunnels, which displace material from the subsurface, can induce earthquakes.
Posted inNews

It’s Not Just Fracking: New Database of Human-Induced Quakes

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 22 December 201616 February 2022

In the largest compilation of anthropogenically induced earthquakes, causes range from building water reservoirs to mining.

This photo shows Jishi Gorge upstream from the landslide dam. Gray silt deposits reveal an ancient, massive lake held by the dam.
Posted inNews

Evidence Found for China's Ancient Origin Story

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 4 August 201624 February 2023

New geological findings suggest that an ancient flood in a popular legend about the birth of China's civilization might have actually occurred, but some 150 years later than historians thought.

Iron Gate Dam on the Klamath River near Hornbrook, Calif
Posted inNews

Controversial Pacts Aim for Dam Removals on Western U.S. River

by Randy Showstack 11 April 201615 February 2023

New agreements regarding the Klamath River in Oregon and California would enable the largest U.S. dam removal project ever. Critics say water quality will suffer, decry hydropower loss.

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