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  • Scientists Map “Pulse” of Groundwater Flow through California’s Central Valley

    Surface deformation in the Central Valley has long been linked to changes in groundwater storage, but the timing and movement of water flow beneath the surface has been poorly understood due to a lack of reliable data. Scientists are now using advanced satellite data to map the “pulse” of groundwater... read more...

  • IAH Elections for Council Vacancies

    Following our sad losses of Devinder Kumar Chadha, Vice President for Asia, and Ralf Klingbeil, Vice President for Science and Programme, we find ourselves with two vacancies on IAH Council. We will therefore be holding elections to fill these vacancies. We now call for nominations for these positions. All members... read more...

  • Scientists Map Africa’s Groundwater Recharge for the First Time

    The majority of people in rural Africa and a large proportion in its urban areas rely on groundwater for drinking, hygiene, and development. The rate at which groundwater is replenished is often unknown making regional water security difficult to assess. A recent study showing the continent’s groundwater recharge rates may... read more...

  • World Water Day / World Water Development Report 2021

    World Water Day 2021 focuses on the theme, ‘Valuing Water’, which is the subject of this year’s United Nations World Water Development Report. Valuing water extends beyond issues of price: it also takes into account the environmental, social, and cultural value people place on water. Groundwater has always been of... read more...

  • Free from Hydrogeology Journal: Groundwater recharge and discharge in arid and semi-arid areas of China

    A collection of seven articles in Hydrogeology Journal (March 2021) explores groundwater recharge and discharge processes in arid and semi-arid areas of China. The groundwater resources have undergone observable changes in water quality and quantity as a result of human activities and climate change. These articles provide insight into surface... read more...

  • Assessing Groundwater Quality: A Global Perspective

    The Friends of Groundwater, a network of about 30 global groundwater experts representing 20 institutions and organisations including IAH, prepared a comprehensive paper on the qualitative state of groundwater resources globally: “Assessing Groundwater Quality: A Global Perspective. Importance, Methods and Potential Data Sources”. Find out more Assessing Groundwater Quality: A... read more...

  • In Memoriam – Dr Ralf Klingbeil

    It is with profound sadness that we report the sudden passing of Dr. Ralf Klingbeil. On behalf of all members of the International Association of Hydrogeologists, we wish to express our condolences to his family, friends and colleagues. We join in this with Ralf’s many colleagues and friends throughout the... read more...

  • India’s groundwater crisis threatens food security for hundreds of millions, study says

    Hundreds of millions of people in India face a serious threat to their livelihoods and food security due to overexploitation of vital water supplies, according a new study. India is one of the world’s biggest crop producers and more than half of its 1.3 billion people rely on agriculture for... read more...

  • Free in our Hydrogeology Journal: Five decades of advances in karst hydrogeology

    Karst aquifers have a worldwide distribution. Their unique characteristics, such as triple porosity (matrix, fractures and conduits) and extremely fast groundwater flow, set them apart from aquifers of other rock types. Our Hydrogeology Journal (February 2021) provides a state-of-the-art overview of advances in karst hydrogeology since the foundation of the... read more...

  • Prosopis juliflora acutely reduces water resources in Ethiopia, costing rural livelihoods

    New research has revealed how an invasion of the alien evergreen tree, Prosopis juliflora seriously diminishes water resources in the Afar Region of Ethiopia. These invasive trees in drier parts of the country have substantially reduced groundwater in aquifers, on which local farmers and towns are totally reliant. Find out... read more...

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