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groundwater

Drone photograph of research vessel offshore Malta collecting geophysical data to map offshore freshened groundwater systems
Posted inEditors' Vox

Freshened Groundwater in the Sub-seafloor

by A. Micallef, M. Person, C. Berndt, Claudia Bertoni, A. Haroon, R. Martin-Nagle, T. Müller and E. Trembath-Reichert 11 January 202130 March 2023

Scientists are using a variety of geochemical, geophysical, and numerical methods to study offshore freshened groundwater and better understand its role in the global water cycle.

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 20201 December 2022

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.

View toward the sky from beneath Oregon white oak trees
Posted inResearch Spotlights

How Some Trees Survive the Summer Dry Season

by Terri Cook 3 December 20203 December 2021

Oak trees in California seasonally tap moisture in unsaturated soil and weathered bedrock, even when the groundwater table is within reach of their roots.

A field on a Nebraska farm with a large irrigation arm watering the crop. Grain storage elevators are visible in the background.
Posted inNews

Modeling Groundwater and Crop Production in the U.S. High Plains

by Jady Carmichael 30 November 20208 November 2022

Innovative new research by a team of international scholars borrows modeling methods from ecology and applies them to groundwater sustainability.

A rocky landscape with short vegetation in the Canadian tundra
Posted inResearch Spotlights

¿Cómo Afecta el Reverdecimiento del Ártico al Agua Subterránea?

Kate Wheeling, freelance science writer by Kate Wheeling 13 November 20206 February 2023

Nuevas investigaciones examinan cómo los cambios en la ecología de la superficie influyen en la hidrología subterránea en el Ártico.

A drone hovers over a spring in Fitchburg, Wis.
Posted inNews

Taking an Aerial View Underground

by Jady Carmichael 6 October 20208 September 2022

Wisconsin geologists are testing using drones equipped with thermal cameras to measure shallow soil depths in areas prone to groundwater contamination.

Two men and two women stand near a hand-pumped borehole in Manicaland, Zimbabwe.
Posted inNews

Groundwater Crisis in Zimbabwe Brought On by Droughts

by Andrew Mambondiyani 2 September 202019 October 2022

Zimbabwe’s groundwater is disappearing fast, leaving rural communities without water for household and agricultural use.

Map of Land subsidence predictions in the western United States obtained via machine learning
Posted inEditors' Highlights

Machine Learning Predicts Subsidence from Groundwater Pumping

by Marc F. P. Bierkens 17 August 202031 March 2023

Machine learning and data on aquifer type, sediment thickness, and proxies for irrigation water use has been used to produce the most comprehensive map of land subsidence in the western U.S. to date.

Figure showing the fault damage halo and linking damage zones between fault cores
Posted inEditors' Highlights

Fluctuating Fluid Flows in a Fractured Fault

by Douglas R. Schmitt 10 August 20206 October 2021

Fault damage zones can focus fluid transport near faults.

Charts showing how groundwater pumping in a deeper aquifer reduces its pressure and induces flow of arsenic rich groundwater from the overlying aquifer
Posted inEditors' Highlights

Arsenic Pollution in Bangladesh is Catching Up with Deeper Wells

by Marc F. P. Bierkens 3 August 20206 February 2023

Inhabitants of Bangladesh have deepened drinking water wells to avoid extracting arsenic-rich groundwater from shallow aquifers, but these may not be free from pollution either.

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