WaterUnderground

water cycle

Why so salty? Coastal groundwater quality under threat

Why so salty? Coastal groundwater quality under threat

Guest contribution from Daniel Kretschmer, University of Potsdam European groundwater quality is deteriorated by seawater intrusion, the displacement of freshwater by a landward movement of seawater (Custodio, 2010). Just south of Barcelona, the deep confined aquifer at the Llobregat river delta has experienced SWI of several kilometers due to intensive groundwater abstraction in the 20th century ...[Read More]

The rise and fall of urban groundwater

The rise and fall of urban groundwater

Original Article by Andy Baker and Margaret Shanafield Cities are home to about half of the global population and urban population has doubled in the last 50 years from 1.5 billion people in 1975 to 3.5 billion people in 2015. This urban population will rise to a predicted 5 billion people by 2050. So, it’s probable that most of us will be reading this from a city. So, city dwellers, do you know h ...[Read More]

Groundwater and a ‘green drought’

Groundwater and a ‘green drought’

Post by Andy Baker, professor in the Connected Waters Initiative Centre at UNSW Sydney, Andreas Hartmann, assistant professor in Hydrological Modeling and Water Resources at the University of Freiburg, and Romane Berthelin, PhD student in Hydrological Modeling and Water Resources at the University of Freiburg. Here in New South Wales (NSW) in southeastern Australia, a long-running drought continue ...[Read More]

Video: Linking water planetary boundaries and UN Sustainable Development Goals

Video: Linking water planetary boundaries and UN Sustainable Development Goals

Water Underground creator Tom Gleeson prepared this quick research video (with no more than a toothbrush, a file holder, and a doughnut, in one take!) for the Ripples project meeting at the Stockholm Resilience Centre, that was held in April. In this video, he talks about using doughnut economics for linking water planetary boundaries and UN Sustainable Development Goals. Display content from Vime ...[Read More]

Have you ever wondered if groundwater is connected to climate?

Have you ever wondered if groundwater is connected to climate?

Post by Tom Gleeson,  Assistant Professor in Civil Engineering at the University of Victoria. ‘Groundwater-surface water interactions’ has become standard hydrologic lexicon and a perennial favorite session title at various conferences… but how often do you hear the phrase ‘groundwater-climate interactions’? A group of hydrologists, hydrogeologists, atmospheric scientists and geodesists that met i ...[Read More]

Of Karst! – short episodes about karst

Of Karst! – short episodes about karst

Post by Andreas Hartmann,  Assistant Professor in Hydrological Modeling and Water Resources at the University of Freiburg. Episode 4 – Karst Groundwater: quick and slow at the same time? We often associate groundwater with large water storage and very slow water movement for instance compared to rivers. But is it possible that groundwater flow can be as quick as stream flow and, at the same aquife ...[Read More]

Water: underground source for billions could take more than a century to respond fully to climate change

Water: underground source for billions could take more than a century to respond fully to climate change

WaterUnderground post by Mark O. Cuthbert, Cardiff University; Kevin M. Befus, University of Wyoming, and Tom Gleeson, University of Victoria Groundwater is the biggest store of accessible freshwater in the world, providing billions of people with water for drinking and crop irrigation. That’s all despite the fact that most will never see groundwater at its source – it’s stored naturally below gro ...[Read More]

Groundwater and drought

Groundwater and drought

Post by Andy Baker, Professor researching groundwater, caves, past climate, organic carbon and more at the University of New South Wales, in Australia. __________________________________________________ Drought is in the news here in New South Wales, Australia. But how are rainfall, drought and groundwater related? First, we need to understand what drought is. Is it a water shortage? Or a lack of ...[Read More]

Happy birthday plate tectonics!

Happy birthday plate tectonics!

Post by Elco Luijendijk, a junior lecturer, and David Hindle, lecturer and head of geodynamic modelling, both at the Department of Structural Geology and Geodynamics at the University of Göttingen, in Germany. _______________________________________________ As we’ve firmly moved into 2018, we can say happy 50th birthday to one of the most revolutionary scientific theories of the last century: plat ...[Read More]

Groundwater organic matter: carbon source or sink?

Groundwater organic matter: carbon source or sink?

Post by Andy Baker, Professor researching groundwater, caves, past climate, organic carbon and more at the University of New South Wales, in Australia. __________________________________________________ We know a lot about the carbon cycle, right? Increased carbon dioxide emissions since the Industrial Revolution have perturbed the carbon cycle. This has led to rising atmospheric carbon dioxide le ...[Read More]