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Science News by AGU

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Groundwater/surface water interaction

The Emme River in Switzerland
Posted inResearch Spotlights

Tracing Water from River to Aquifer

by Aaron Sidder 20 April 202128 September 2021

A new technique using dissolved noble gas tracers sheds light on how water moves through an aquifer, with implications for water resources and their vulnerability to climate change.

Observed median July temperatures in eleven headwater streams by the Agashashok, Cutler, and Imelyak rivers in the Noatak river basin.
Posted inEditors' Highlights

Thawing Permafrost May Cause Streams to Cool

by D. Moore 3 March 202124 February 2021

Permafrost thawing associated with climate warming increases contributions to streamflow by deeper, cooler groundwater flow paths, which may result in lower summer stream temperatures.

Six plots showing spatial distribution of steady-state groundwater aquifer salinity (colors) and flow streamlines (white) for the two-dimensional simulations of the floodplain
Posted inEditors' Highlights

Evaporation Reverses Groundwater Flow and Forms Hyper-Salinity

by D. Scott Mackay 4 December 202030 November 2020

A numerical model of groundwater-surface water systems shows how floodplain evaporation can reverse stream-groundwater flow and produce strong buoyancy changes associated with salinity.

Researchers examine how mesquite trees move water between soil layers
Posted inResearch Spotlights

How Mesquite Trees Gain a Competitive Edge in Arid Arizona

by Aaron Sidder 6 July 2018

A new study shows that mesquites employ hydraulic redistribution to move water between soil layers in the savannas of Santa Rita.

Lab-built streams reveal new insights into turbulence-driven transport in gravel streambeds
Posted inResearch Spotlights

A Closer Look at Turbulent Transport in Gravel Streambeds

by Sarah Stanley 15 June 2018

Lab-built streams reveal new insights into turbulence-driven exchange of dissolved substances between stream water and sediments below.

Posted inEditors' Vox

On Integrating Sedimentology and Hydrogeology in Streambeds

by D. Partington, C. T. Simmons, R. Therrien and P. Brunner 27 April 2018

A new modeling blueprint seeks to unify sedimentology, hydrology, and hydrogeology in the modeling of streambeds.

Posted inEditors' Vox

Above and Below: Understanding River-Groundwater Exchanges

by P. Brunner, P. Renard, R. Therrien, C. T. Simmons and Harrie-Jan Hendricks-Franssen 26 January 2018

Field data, new technologies, numerical modelling, and geostatistical methods can be combined to improve understanding of the interactions between surface water and groundwater.

Increased winter flows in the Tanana River have puzzled researchers—until now
Posted inResearch Spotlights

Why Are Arctic Rivers Rising in Winter?

by E. Underwood 5 September 20177 September 2018

Increased glacial melt is boosting winter streamflows by filling aquifers, a new study on an Alaskan river suggests.

Researchers assess how the behavior of groundwater influences nitrogen cycling in streams.
Posted inResearch Spotlights

Changes in Groundwater Flow Affect Nitrogen Cycling in Streams

by Sarah Stanley 30 June 2017

Overpumping and other activities that affect groundwater levels could combine with increased nitrogen runoff to amplify threats to human and environmental health.

Posted inResearch Spotlights

A New Level of Understanding for Coastal Aquifers

by E. Betz 4 February 20151 March 2015

New models of saltwater-freshwater mixing in coastal aquifers show how salinity varies throughout the year, with implications for what happens to groundwater pollutants before they reach the ocean.

From AGU Journals

MOST SHARED
Geophysical Research Letters
“Climate Change Drives Widespread and Rapid Thermokarst Development in Very Cold Permafrost in the Canadian High Arctic”
By Louise M. Farquharson et al.

HIGHLY CITED
Radio Science
“Vegetation modeled as a water cloud”
By E. P. W. Attema,  Fawwaz T. Ulaby

HOT ARTICLE
Geophysical Research Letters
“Numerical Simulation of Atmospheric Lamb Waves Generated by the 2022 Hunga-Tonga Volcanic Eruption”
By Angel Amores et al.

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