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.
Across a narrow watershed in Asakura, a rural city in Fukuoka Prefecture, centuries-old stone channels still guide water through fields and into the river below. Today, those same systems are the focus of researchers at Kyushu ...
Environment
Jul 11, 2026
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More than 90% of the key nutrients degrading the Mar Menor, such as ammonium, phosphorus and silica, do not come from streams or continental groundwater, but rather through a mechanism that has so far been overlooked: Water ...
Earth Sciences
Jul 8, 2026
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AIMS scientists are quantifying the amount of groundwater flowing from the land to the Ningaloo Reef in Western Australia to help understand the viability of blue carbon storage solutions to reduce the impacts of climate ...
Environment
Jun 18, 2026
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Researchers at the Leibniz Centre for Agricultural Landscape Research have investigated how water from streams can be stored in the aquifer during wet periods. Using an area in the lower Spree catchment in Brandenburg as ...
Earth Sciences
Jun 13, 2026
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Nitrate pollution is a growing global environmental challenge due to the extensive use of fertilizer. A study published in Science, led by the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB) with the Helmholtz ...
Earth Sciences
Jun 12, 2026
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An international team of scientists has demonstrated how powerful thunderstorm complexes over the U.S. Corn Belt are fueled by moisture rising from the region's fertile fields or just beneath them. The findings can lead to ...
Earth Sciences
May 27, 2026
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About two-thirds of the U.S. is in some stage of drought in late spring 2026, yet at the same time the country has been seeing more intense downpours. It might seem contradictory, but both are symptoms of rising global temperatures.
Environment
May 26, 2026
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14
As climate change increases the risk of flooding worldwide, understanding how floods form has never been more important. However, the science behind flooding is notoriously difficult to grasp, involving interactions among ...
Earth Sciences
May 18, 2026
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A Dartmouth study shows that annual rainfall in much of the world has consolidated over the past four decades into heavier storms with longer dry periods in between.
Earth Sciences
May 13, 2026
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Heavy rains causing repeated river flood intrusions into Florida's freshwater springs are changing the function of the clear natural resource. Findings from University of Florida Institute of Food and Agricultural Sciences ...
Earth Sciences
May 5, 2026
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