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Rivers

Elder Creek in the Eel River watershed of northern California.
Posted inResearch Spotlights

Lab Tests Probe the Secrets of Steep and Rocky Mountain Streams

by S. Witman 21 April 201727 April 2022

Researchers built a glass-encased test environment that helps them assess streamflow without the confounding factors introduced by bed forms.

Grand canyon aerial view showing dendritic drainage.
Posted inResearch Spotlights

Stream Network Geometry Correlates with Climate

by Terri Cook 6 April 20176 June 2022

A "big data" analysis of nearly 1 million river junctions in the contiguous United States shows that branching angles in dendritic drainages vary systematically between humid and arid regions.

Samples of Arctic permafrost hold clues to the carbon feedback loop that may be sparked as the permafrost thaws.
Posted inResearch Spotlights

Arctic Permafrost Thaw Would Amplify Climate Change

by S. Witman 3 March 201715 November 2021

An international team probed Arctic permafrost samples to better understand the carbon feedback loop that could be set off by future thawing.

Posted inResearch Spotlights

River's Rise Linked to Oklahoma's Largest Earthquake

by S. Witman 13 January 20179 May 2022

As human-induced earthquakes increase in frequency and magnitude, researchers race to uncover their effects on surface water and groundwater.

Scientists find new clues to explain how rivers get their shape.
Posted inResearch Spotlights

Groundwater: A Hidden Influence on River Shape

by S. Hall 2 November 20161 December 2022

A new study shows how groundwater influences river dynamics and channel pattern.

Water flows along a knickpoint in the Luquillo Mountains.
Posted inResearch Spotlights

How Do Tropical Forests Slow Knickpoints in Rivers?

by W. Yan 1 July 201627 April 2022

Using Puerto Rico's Luquillo Mountains as a case study, scientists use the region's geological history to study how knickpoints—areas where there's a sharp change in the river's slope—move over time.

A large river network lies beneath Jakobshavn Glacier.
Posted inResearch Spotlights

A River Network Preserved Beneath the Greenland Ice Sheet

by Terri Cook 28 June 201613 January 2022

An ancient drainage basin covering one fifth of Greenland predates the ice sheet and strongly influences the modern Jakobshavn Glacier, according to a new analysis of ice-penetrating radar data.

Suspended fine sediment threatens fish.
Posted inNews

Silty Streams Muddy Freshwater Conservation Issues

by E. Deatrick 15 June 201628 September 2021

Throughout the Pacific Northwest, dirt from unpaved roads can clog streams, threatening fish habitats. Scientists have only a murky understanding of how to clear up these turbid waters.

Posted inResearch Spotlights

A River Runs Through It, but Why?

by W. Yan 14 June 201624 February 2022

Researchers investigate the factors that cause river terraces to form.

The confluence of the Rees and Dart Rivers (New Zealand).
Posted inResearch Spotlights

The Mathematics of Braided Rivers

by David Shultz 10 June 201627 April 2022

River researchers find a mathematical relationship that predicts the average shape of a riverbed over a defined distance, opening the door to new ideas about modeling braided rivers.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
JGR: Solid Earth
“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

EDITORS' HIGHLIGHTS
AGU Advances
“Eminently Complex – Climate Science and the 2021 Nobel Prize”
By Ana Barros

EDITORS' VOX
Perspectives of Earth and Space Scientists
“New Directions for Perspectives of Earth and Space Scientists”
By Michael Wysession


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