EGU Blogs

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GeoLog

A geoscience reality check on World Biofuels Day

A geoscience reality check on World Biofuels Day

On a humid morning in Augsburg, Germany, on August 10, 1893, a ten-foot iron cylinder roared to life for the first time. The engine belonged to Sir Rudolf Diesel, and running through its veins was not the petroleum distillate we associate with his name today, but in fact, peanut oil! Diesel’s early experiment proved something revolutionary for the late Industrial Revolution: the engines driving hu ...[Read More]

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Ocean Sciences

When the atmosphere moves the sea: Meteotsunami waves

When the atmosphere moves the sea: Meteotsunami waves

Meteotsunamis or meteorological tsunamis are globally occurring progressive shallow water waves with a period of between 2 to 120 minutes which results from an air-sea interaction. They tend to be initiated by sudden pressure changes and wind stress from moving atmospheric systems with sources ranging from convective clouds, cyclones, squalls, thunderstorms, atmospheric gravity waves and strong mi ...[Read More]

GeoLog

Thirty years after Biescas: Rethinking alluvial fan flooding and infrastructure failure

Thirty years after Biescas: Rethinking alluvial fan flooding and infrastructure failure

Thirty years ago, in August 1996, a catastrophic flash flood swept through the Las Nieves campsite on the alluvial fan of the Barranco de Aras near Biescas in the Central Pyrenees of Aragón, Spain. The tragedy claimed 87 lives and injured over 180 people. This makes it one of the most severe weather-related disasters in modern European history. In the decades following the disaster, geoscientists ...[Read More]

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Geodynamics

Science has no borders. Researchers do: a modern Odyssey

Science has no borders. Researchers do: a modern Odyssey

When Homer wrote The Odyssey nearly three thousand years ago, he described a journey filled with storms, uncertainty, unexpected detours, and the relentless hope of eventually reaching Ithaca. Today’s journeys may no longer cross the Mediterranean, but they continue to test researchers’ resilience in unexpected ways. Not because researchers sail across unknown seas, but because the pur ...[Read More]

GeoLog

GeoRoundup: the highlights of EGU Journals published during July!

GeoRoundup: the highlights of EGU Journals published during July!

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 July, we are featuring the Planetary and Solar System Sciences (PS), Seismology (SM), and Tectonics and Structural Geology (TS). They are represented by the journals Solid Earth (SE), Geoscientific Model Developmen ...[Read More]

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Geodesy

Tidal pulse of rivers

Tidal pulse of rivers

The research gap Ocean tides play a significant role on ocean circulation, coastal processes and mass variations. Tides are generated from the gravitational interaction between Earth, Moon and Sun, which typically results in two high and two low tides observed each day. Satellite observations have vastly expanded our understanding of ocean tides. In 2022, the Surface Water and Ocean Topography (SW ...[Read More]

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Ocean Sciences

More Than a Rain Gauge: When Salt Starts Steering the Sea

More Than a Rain Gauge: When Salt Starts Steering the Sea

Posted in: Ocean Sciences | Reviews & Perspectives | Ocean Science Jubilee Special Issue We usually think of ocean salinity as the ocean’s rain gauge. Rain, rivers, and melting ice freshen the surface; evaporation leaves it saltier. Seen from space, these changing patterns reveal how Earth’s water cycle is evolving, with wet regions generally becoming fresher and dry regions saltier as the cli ...[Read More]

GeoLog

Reflecting on fifty years of Mars through Viking 1’s lens

Reflecting on fifty years of Mars through Viking 1’s lens

On July 20, 1976, a machine of steel and titanium dropped through a thin atmosphere and touched the dirt of Chryse Planitia. Scientists at NASA held their breath, since five years earlier, the Soviet Union’s Mars 3 probe had died less than two minutes after touchdown. To mitigate this nightmare, engineers programmed Viking 1 to scan its own footpad first. If the lander sank into oblivion, hu ...[Read More]

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Solar-Terrestrial Sciences

Behind the Poster: An Interview with EGU 2025 Outstanding Student Paper Presentation (OSPP) Award Winner Carlos Castillo-Rivera

Congratulations on receiving the OSPP Award 2025! What was your reaction when you found out you had been selected for the award? I was very surprised when I received the email, and I read it several times to make sure it was real. After that, I felt extremely proud of my work because I could see the evaluation scores, comments, and recommendations from the judges. Their feedback confirmed that my ...[Read More]

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Geodynamics

The pulsed rise of the Nahuelbuta Range: How glaciers indirectly built a mountain in Patagonia

The pulsed rise of the Nahuelbuta Range: How glaciers indirectly built a mountain in Patagonia

Forearc ranges are a striking example of how tectonic processes shape our planet. The Nahuelbuta Range in southern Chile is one of such settings. This week, Ambrosio Vega-Ruiz from the GFZ Helmholtz Centre for Geosciences, Germany, is telling us the story of this remarkable range, exploring how climate feedback can influence tectonic uplift across coastal forearcs. Tectonic uplift before tectonic ...[Read More]