Hydrogeology is the branch of geoscience that investigates the occurrence, distribution, movement, and geochemical evolution of groundwater within the porous and fractured media of the Earth’s crust. It integrates principles from geology, hydraulics, and geochemistry to characterize aquifer properties, groundwater flow regimes, recharge and discharge processes, and solute transport. Hydrogeological research employs methods such as hydraulic testing, tracer studies, numerical flow and transport modeling, and isotopic analysis to quantify parameters like hydraulic conductivity, storativity, and dispersion. It is fundamental for assessing groundwater resources, predicting contaminant migration, and constraining water–rock interaction in both natural and anthropogenically impacted systems.
From Australia's remote deserts to the surface of Mars, geological mapping underpins how we understand landscapes, natural resources, and the processes that shape our planet and others beyond it.
Earth Sciences
May 28, 2026
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Climate change will increasingly stress water supply and economic and environmental systems, creating a mounting need for more ideas to reduce reliance and conserve diminishing river and groundwater resources. MAR takes surface ...
Environment
May 11, 2026
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More than two-thirds of Saudi Arabia's irrigation water and a third of the country's drinking water comes from groundwater, yet aquifers are being depleted faster than they recharge. At the same time, sewage treatment generates ...
Earth Sciences
May 5, 2026
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The latest official stocktake of the state of New Zealand's freshwater carries many of the headline messages we have come to expect.
Environment
Apr 17, 2026
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The São Paulo Metropolitan Area (SPMA) in Brazil has approximately 22 million inhabitants and consumes an average of 61.6 cubic meters (61,600 liters) of water per second. Although nearly the entire public water supply originates ...
Environment
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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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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A recent satellite-based study has uncovered alarming declines in groundwater storage across High Mountain Asia (HMA), widely known as the "Asian Water Tower." This critical water source, which sustains agricultural irrigation, ...
Earth Sciences
Feb 1, 2026
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Water is everywhere, from the snowpack in the mountains to the tap in our kitchens. But while we often think about rainfall and snow as the main drivers of our water supply, it turns out that something we rarely see has just ...
Under the Great Salt Lake playa lies a potentially vast reservoir of pressurized freshwater that has accumulated over thousands of years from mountain-derived snowmelt, according to new research from University of Utah geoscientists. ...
Earth Sciences
Jan 15, 2026
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