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]
Fault zones are far more complex than the lines we draw on geological maps. Their internal structures, mineralogical compositions, and deformation histories offer important clues to deformation mechanisms and even how earthquakes might occur. But how can we connect what we observe in the field with the microscopic processes and mechanical behaviour of faults at …[Read More]
Hello readers! We’re thrilled to announce the new campfire event of the EGU planetary and Solar System Sciences (PS) Division dedicated to astrobiology, habitability in the Solar System and biomining. Our guests will be Joseph McNeil (Natural History Museum of London), Adrienne Kish (National Museum of Natural History of Paris) and Luca Tonietti (University of …[Read More]
A frozen lake can be more than a layer of ice. It can become a road, a fishing ground, a place of spiritual significance, or a window into a changing climate. From the ice-covered waters of the Northern Hemisphere to Patagonia, lake ice shapes ecosystems and influences communities. But as temperatures rise, lake ice is …[Read More]
A question with no single answer Imagine you are responsible for the water supply of a small town in the hills. Your wells tap groundwater, fed by rain and snowmelt seeping slowly through soil and rock. One day the town council asks a simple question: Will there still be enough water in August, fifty years …[Read More]
Let’s get the joke out of the way first, because I made it to myself more than once while finishing this piece: “explosive inside, effusive outside” is a fairly accurate description of the average Early Career Researcher trying to hold it together inside the current state of academia. Calm, composed, professionally cheerful on the surface; …[Read More]
Introduction – a little Shellfish Our story starts in Springbank, where the discovery of an anomalous oyster bed, slap bang in the middle of more than a kilometre of Cretaceous terrestrial deposits, led me (as so often happens) on a fascinating voyage of discovery exploring the origins of fossil oyster beds, focusing on Alberta. This …[Read More]
Earth’s surface is covered by many kinds of granular materials, including sediments and soils. Below ground, grains are also widespread in unconsolidated deposits and fault zones; even polycrystalline rocks deep inside the Earth are made up of mineral grains. These materials deform under their own weight and external forces, but what forces act inside them? …[Read More]
The weathering crust of ice sheets or glaciers is a layer of porous ice, bordering on impermeable ice below and influencing the meltwater storage and production. This physically complex environment harbors a wide range of microorganisms that themselves affect the weathering crust and contribute to darkening of ice surfaces. The two factors – microbial community …[Read More]
