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dams & reservoirs

Comparison of the performance of many different water resources management options based on four different objectives.
Posted inEditors' Highlights

Managing Strategic Water Resources in a Changing Climate

by Jim Hall 11 January 20221 June 2023

Another significant step has been taken in methods for managing water resources in the face of climatic changes and other future uncertainties. Dynamic adaptation is becoming a reality.

A dam impounds a large reservoir (background) as seen from a stone fort (foreground).
Posted inNews

A Monsoon-Filled Reservoir Might Have Nudged a Fault to Fail

by Maria Rose 16 December 202116 December 2021

New research examines whether a sudden increase in water loading in Pakistan’s Mangla Dam might have been connected to the 2019 New Mirpur earthquake.

Lac des Dix reservoir of the Grande Dixence Dam in Hérémence, Switzerland
Posted inResearch Spotlights

Researchers Zero In on Methane Released from Reservoirs

Sarah Derouin, Science Writer by Sarah Derouin 19 October 20212 November 2021

Using new methods, researchers can estimate how much methane is released each day from reservoirs—an important step in estimating global methane emissions.

Dam failure in Iowa
Posted inNews

Below Aging U.S. Dams, a Potential Toxic Calamity

by J. Dinneen and A. Kennedy 11 June 20216 January 2023

Documents suggest that in more than 80 U.S. locations, the failure of an aging dam could flood a major toxic waste site.

Water flows down a spillway at India’s Bhakra Dam into a steep forested valley with electric towers.
Posted inNews

Siltation Threatens Historic North Indian Dam

by G. Singh 9 June 202130 September 2022

Experts recommend reforestation campaigns to combat siltation at Bhakra Dam, one of the first infrastructure projects pursued by India after independence.

An excavator sits in the sediment-filled Paonia Reservoir in the Colorado mountains
Posted inOpinions

Sediment Mismanagement Puts Reservoirs and Ecosystems at Risk

by D. Tullos, P. A. Nelson, R. H. Hotchkiss and D. Wegner 14 April 202125 October 2021

Current regulations and reservoir management practices impede efforts to deal with sediment accumulation behind U.S. dams. New approaches are needed to improve reservoir sustainability.

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.

Water rushing down the damaged Oroville dam spillway into the river.
Posted inNews

How Infrastructure Standards Miss the Mark on Snowmelt

by Jackie Rocheleau 16 October 20208 September 2022

Nationwide, civil engineers consider precipitation values from NOAA to design their structures. But those values are missing another contributor to flood risk: snowmelt.

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

Minireservorios Podrían Salvar a Agricultores con Suelos Arenosos

Kate Wheeling, freelance science writer by Kate Wheeling 28 September 202031 October 2022

Una tecnología de retención de agua subterránea recientemente reactivada podría conservar el agua y aumentar drásticamente el rendimiento de los cultivos en paisajes áridos con suelos arenosos como el África Subsahariana.

The Huanza hydroelectric dam near Lima, Peru
Posted inResearch Spotlights

Dams Alter Nutrient Flows to Coasts

Elizabeth Thompson by Elizabeth Thompson 15 September 202022 December 2021

New models indicate how dams worldwide influence the mix of nutrients in river water reaching the ocean. As more dams are built, changing nutrient loads may adversely affect coastal ecosystems.

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