Groundwater and surface-water interaction refers to the bidirectional exchange of water, solutes, heat, and sometimes contaminants between aquifers and surface-water bodies such as rivers, lakes, wetlands, and estuaries. This interaction is governed by hydraulic gradients, permeability contrasts, geological heterogeneities, and temporal variability in recharge and evapotranspiration. It encompasses processes such as baseflow discharge, bank storage, hyporheic exchange, and infiltration from surface water to aquifers, which together control streamflow regimes, water quality, redox conditions, and ecological habitat. Quantifying these exchanges is critical in hydrologic modeling, water-budget analysis, contaminant transport studies, and integrated water-resources management under changing climatic and anthropogenic stresses.
A potentially huge underground reservoir of freshwater beneath the Great Salt Lake is coming into sharper focus with a new study that used airborne electromagnetic (AEM) surveys to X-ray geologic structures under Farmington ...
Earth Sciences
Mar 20, 2026
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596
South Africa is the 30th driest country in the world. Over 400 towns, especially in the western and central parts of the country, rely on water from aquifers that they pump out of the ground (groundwater).
Environment
Mar 19, 2026
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15
The Amazon rainforest is famous for storing massive amounts of carbon in its trees and soils, helping regulate the global climate. Yet a paper published in New Phytologist shows that one of South America's largest carbon-storing ...
Earth Sciences
Mar 12, 2026
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14
A new peer-reviewed study led by Dr. Hesham El-Askary, Ph.D., professor of computational and data science at Chapman University, concludes that the saddle dam of the Grand Ethiopian Renaissance Dam shows significant vulnerabilities ...
Environment
Feb 25, 2026
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131
Pesticides can harm aquatic ecosystems and human health, so scientists need to understand how they move from farm fields into streams. A management tool commonly implemented is riparian buffers—strips of vegetation, like ...
Environment
Feb 24, 2026
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10
Researchers at the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB) have used long-term data from the Spree River to discover that aquatic plants can compensate for declining water levels in a drier climate. ...
Environment
Feb 22, 2026
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After weeks of relentless rain and flooding, and even more forecast, 2025's droughts and hosepipe bans feel like ancient history. But they shouldn't.
Environment
Feb 18, 2026
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A research team led by Prof. Xiao Kai from the Yantai Institute of Coastal Zone Research of the Chinese Academy of Sciences has systematically elucidated the transformation and transport processes of nutrients in intertidal ...
Earth Sciences
Feb 5, 2026
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10
Every year at Grand Canyon National Park, millions of visitors from all over the world stop at one of a dozen water spigots. Most people are on a rim, seeing the canyon's majesty for the first time, when they step off the ...
Earth Sciences
Feb 5, 2026
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223
Dalhousie researchers have revealed how Arctic aquifers—permeable layers of the ground that store and transmit water to rivers, lakes and terrestrial ecosystems—behave today and how these vital resources will change with ...
Earth Sciences
Feb 2, 2026
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