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October 13, 2017
Could groundwater be a previously unrecognised source or sink of carbon?
September 28, 2017
We recently mapped groundwater wells across the 17 western states , where half of US groundwater pumping takes place.
July 17, 2017
Post by Samuel Zipper, postdoctoral fellow at both McGill University and the University of Victoria, in Canada. You can follow Sam on Twitter at @ZipperSam. ___________________________________________________________ Dedicated Water Underground readers know that this blog is not just about water science, but also some of the more cultural impacts of groundwater. Keeping in that tradition, today’s post begins with a joke*: Knock, knock! Who’s there? Your neighbor Your neighbor who? Your neighbor’s groundwater, …
July 2, 2017
Post by Viviana Re, postdoctoral researcher at the University of Pavia (Università di Pavia), in Italy. You can follow Viviana on Twitter at @biralnas. Part one of a two part series on groundwater and education by Viviana. ___________________________________________________________ Education /ɛdjʊˈkeɪʃ(ə)n The process of receiving or giving systematic instruction, especially at a school or university. from Latin educatio(n-), from the verb educare Educare is a combination of the words e (out) and ducare (lead, drawing), …
June 26, 2017
What is the difference between ‘water withdrawal’ and ‘water consumption’, and why do we need to know?
Last week I had to teach my first class in global hydrology. When I showed the global trend on increasing demands and withdrawals I needed to explain the different terms as sometimes the term “water use” gets, well, misused.
June 10, 2017
If you live in a cold climate, have you ever wondered where all the de-icing salt (or ‘grit’ as we call it in the UK) that gets spread on the roads in winter time ends up, aside from that accumulating salty grime that coats your car? As you might expect, most of the salt gets washed off the highways as the salt has the desired effect of melting the ice, or carried away by rain. This salty ‘runoff’ ends up in streams nearby via pipes which drain the highway.
May 11, 2017
Welcome to the first edition of groundwater speed dating. In today’s post I introduce you to a motley crew of isotopes and chemicals that hydrogeologists and geochemists use to date the age of groundwater.
January 9, 2017
Post by WaterUnderground contributor Mikhail Smilovic. Mikhail is a PhD candidate in the Department of Civil Engineering at McGill University, in Quebec. Crops use water for photosynthesis, absorbing nutrients, and transpiration, or the plant-equivalent of sweating. A crop may experience water-stress if the soil surrounding the roots is not adequately wet, and this stress will affect the crop differently depending on the crop’s stage of growth. Irrigation is the watering of …
December 20, 2016
Post by WaterUnderground contributor Inge de Graaf. Inge is a postdoc fellow at Colorado School of Mines, in the USA. Groundwater is the world’s most important source of freshwater. It supplies 2 billion people with drinking water and is used for irrigation of the largest share of the world’s food supply. However, in many regions around the world, groundwater reserves are depleting as the resource is being pumped faster than it is …