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 new study by University of Hawai'i at Mānoa researchers revealed that Waikīkī is facing a fundamental shift in flood hazards as sea levels rise—transitioning from a flooding that is driven primarily by rainfall to events ...
Earth Sciences
Apr 16, 2026
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Florida is among the wettest U.S. states, but that doesn't mean it is drought-free. Nearly all of Florida faced at least "moderate" drought, and nearly 80% faced "extreme" conditions in April 2026, according to data from ...
Environment
Apr 7, 2026
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It's a well-established fact that forests and water are deeply connected. For decades, paired-watershed experiments—a scientific method for evaluating land-use impacts on water quantity or quality—have shown that when we ...
Environment
Apr 4, 2026
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The Syrian civil war, which began in 2011, caused widespread population displacement and infrastructure damage. However, it has also led to an unintended environmental effect with notable changes in the country's landscape, ...
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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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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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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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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