On 25 August 2025, SONABEL – Burkina Faso’s national utility – began releasing water from the Bagre Dam two days ahead of schedule. The reservoir had reached 90% of its capacity, just 0.73 metres below its maximum retention limit [9]. The Water Resources Commission and the National Disaster Management Organization (NADMO) in Ghana issued immediate …[Read More]
Climate change is reshaping landscapes as well as altering rainfall patterns. In the Himalayas, for example, rising temperatures are causing glaciers to retreat and glacial lakes to form and expand. These lakes can alter river networks, and when they overflow, they erode and reshape land downstream. They are therefore not merely a source of hazards …[Read More]
Welcome to GeoTalk, Caitlyn and John! Could you please briefly introduce yourselves to our readers? John Hillier (Interim Division President): I have a very mixed research background. I started off in marine geophysics and then I moved to glacial geomorphology. At the end of that I worked for an insurance company as a catastrophe modeller, …[Read More]
Each month we feature specific Divisions of EGU and during the monthly GeoRoundup we put the journals that publish science from those Divisions at the top of the Highlights section. For September, we are featuring Geoscience and Society (GS), Geomorphology (GM) , Biogeosciences (BG). They are represented by the journals Geoscience Communication (GC), Earth Surface Dynamics (ESurf), …[Read More]
How do geodesists measure gravity? And what does it reveal about our planet? Gravitation is one of the most familiar forces in everyday life, yet almost no one can explain how geodesists use it to monitor a changing Earth. A new short film from IAG’s Global Geodetic Observing System (GGOS), “Gravity – The Invisible Force …[Read More]
One major pillar of science are datasets. Collecting, analysing and understanding data is basically what research is all about. In this blogpost, Claire Treat tells a story about haunting data experiences that researchers from other fields can relate to for sure. In honour of Halloween, I decided to regale the good readers with spooky, haunting …[Read More]
If you want to run a hydrological model anywhere, the first question is which meteorological forcing to use. For the Po basin, or anywhere in northern Italy, there are today at least a dozen gridded products, regional and European, built from different meteorological networks, with different methods and for different purposes. I reviewed them from …[Read More]
Small glaciers are often written off: too small to matter, and soon gone anyway. Yet recent disasters in the Alps show that they can still pose a threat. And some are doing something rather unexpected: while the climate warms, the ice inside them has turned cold. We drilled into six small Swiss glaciers to find …[Read More]
In this week’s blog, Dwijendra Pandey, a PhD student in the Tectonic Geodesy Group at CSIR-NGRI, Hyderabad, India, takes us beneath Antarctica’s ice to explore how changes in ice and snow move the solid Earth, and how scientists track this subtle motion from space and on the ground. Antarctica might seem like the last place you …[Read More]
Introduction Geomagnetic storms present a constant challenge to global navigation satellite systems (GNSS), driving space weather researchers to better understand how the ionosphere responds when solar drivers strike. A primary key to this puzzle is ionospheric delay time, the exact duration between the onset of a geomagnetic storm and its peak impact on the Total …[Read More]
