Detail of a photo: Large angular boulder beside a shallow pebbly stream in a grassy mountain valley, below steep forested slopes and rocky peaks under a dramatic blue sky, in heavily processed colours.
EGU Blogs

Division blogs

ST
Solar-Terrestrial Sciences

Unraveling Low-Latitude Ionospheric Delays: How Solar Flux and Energetic Protons Shape Storm-Time TEC Across Solar Cycles 23–25

and October 27, 2026
Two scatter plots showing a positive correlation between DTEC and F10.7 Flux. Blue data points with vertical error bars follow an upward-sloping red trend line in both graphs.

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]

TS
Tectonics and Structural Geology

From Fault Architecture to Grain-Scale Deformation: Integrating Field, Microstructural, and Experimental Approaches

and October 27, 2026
From Fault Architecture to Grain-Scale Deformation: Integrating Field, Microstructural, and Experimental Approaches

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]

PS
Planetary and Solar System Sciences

Habitability in the Solar System and Biomining: From extremophiles to space resources

October 26, 2026

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]

Geochemistry, Mineralogy, Petrology & Volcanology

Explosive Inside, Effusive Outside: What is it that makes volcanoes erupt the way that they do, and how does that relate to how all ECRs feel inside?

October 21, 2026
Explosive Inside, Effusive Outside: What is it that makes volcanoes erupt the way that they do, and how does that relate to how all ECRs feel inside?

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]

CR
Cryospheric Sciences

An Interview on the importance of simplification – modeling the weathering crust and microbial activity on ice sheets

and October 16, 2026
A graphic of weathering crust on an ice sheet (a cross section view) on the left, and on the right is a brief schematic of how the microbes figure into the ice sheet as represented by simple drawings of pore space, melt, and physics equations

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]