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Rivers

The Amazon River and its tributaries as seen from the International Space Station
Posted inResearch Spotlights

The Perspective from Space Unlocks the Amazon Water Cycle

by Aaron Sidder 23 December 202126 April 2022

Satellite imaging and remote sensing offer unique insights into the Amazon’s complex hydrology. A new review summarizes decades of findings and charts a path forward for new remote sensing missions.

Under a cloudy sky, numerous blue-tipped sand mining ships dot the green-blue waters of the Mekong River.
Posted inNews

Satellites Spy on Sand Mining in the Mekong

by Alka Tripathy-Lang 21 December 202110 January 2022

Concrete, used in everything from streets to skyscrapers, needs sand, often mined from active rivers in developing countries with little oversight. Researchers can now use satellites to keep watch.

Posted inEditors' Highlights

What Controls Nitrous Oxide Emissions from Rivers?

by Nicolas Gruber 22 November 202128 March 2022

Statistical and numerical models show that denitrification efficiency is a key parameter controlling the production of N2O from rivers, providing a target for river restoration projects.

Canoers paddle along the Anacostia near Kenilworth Park in Washington, D.C.
Posted inFeatures

The Capital’s Waterways Could Be Swimmable by 2030

by Mark Betancourt 22 November 202124 November 2021

Scientists, community groups, and the Clean Water Act are behind Washington, D.C.’s massive project to reduce combined sewer overflows by 96%.

The Darling River in Australia during a flood in 2012
Posted inResearch Spotlights

Identifying the World’s Most At-Risk River Basins

by Emily Cerf 3 November 20213 November 2021

Major river basins around the world, including the Amazon, may be hot spots for ecological shifts as the planet warms.

River ice during the winter in the Little Southwest Miramichi River (Tooadook in Mi’kmaq) located in New Brunswick, Canada.
Posted inResearch Spotlights

River Ice Can Shape Watershed Ecology

by Sarah Derouin 29 October 202127 April 2022

As river ice cover decreases, the physical and biological changes to river ecosystems vary with the watershed characteristics and river size.

A stream in autumn with trees and vegetation along both banks, with an old barn and agricultural fields in the background.
Posted inNews

Scientists Call for Policies to Buffer Agricultural Runoff

by Jady Carmichael 22 October 202128 March 2022

By reviewing 44 studies, researchers make a scientific case for regulating agricultural pollution of streams and rivers by implementing conservation practices, including riparian buffer zones.

Water samples collected from Gwynns Falls stream in Baltimore
Posted inNews

Leaky Pipes Are Dosing Baltimore’s Waterways with Drugs

by Richard J. Sima 22 October 202121 March 2022

Poor infrastructure is responsible for tens of thousands of pharmaceutical doses that flow through Baltimore’s streams each year.

Posted inResearch Spotlights

西伯利亚科雷马河的多年冻土碳元素含量极小

by Terri Cook 20 October 202120 October 2021

新的研究发现,北极河流目前运输的多年冻土来源的溶解有机碳有限,这对理解该地区变化的碳循环及其加速气候变化的潜力具有启示意义。

View of the Brahmaputra River with the sun low on the horizon
Posted inScience Updates

Tree Rings Reveal a 700-Year Record of Flooding in Bangladesh

by Mukund Palat Rao and Benjamin I. Cook 15 October 202115 October 2021

Trees tell of a wetter past along the Brahmaputra River and, combined with climate modeling, suggest heightened future flood risks in one of the world’s most densely populated areas.

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