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GeoLog

Mars’ lost oceans: Inside the new planetary hydrology model published in EGU’s Geoscientific Model Development (GMD)

Mars’ lost oceans: Inside the new planetary hydrology model published in EGU’s Geoscientific Model Development (GMD)

If we look at Mars today, we’ll see a cold, dusty desert, but peel back the surface geology, and the planet tells quite a different story! Networked river valleys, ancient deltaic fans, carved impact crater lakes, and potential palaeoshorelines all point to a warm and active past during the Noachian and early Hesperian epochs, circa …[Read More]

Geochemistry, Mineralogy, Petrology & Volcanology

GMPV-PS Campfire: Rocks across the Solar System: From planetary differentiation to surface processes

GMPV-PS Campfire: Rocks across the Solar System: From planetary differentiation to surface processes

What can meteorites tell us about Earth’s environment? How do minerals record a cosmic collision? And could Venus be hiding lava tubes? Our joint GMPV–PS Campfire brings together four talks exploring these questions and the early differentiation of Mars, plenty of planetary ground to cover! From environmental and shock processes preserved in chondrites to the …[Read More]

CL
Climate: Past, Present & Future

A Remote Sensing Solution for Nitrous Oxide: The Greenhouse Gas We Need to See Better

A Remote Sensing Solution for Nitrous Oxide: The Greenhouse Gas We Need to See Better

When we talk about greenhouse gases and climate change, carbon dioxide (CO2) and methane (CH4) usually receive most of the attention. Yet another gas, nitrous oxide (N2O), quietly plays an important role in our changing climate. Commonly known as “laughing gas”, N2O is a powerful greenhouse gas with nearly 273 times the warming potential of …[Read More]

GI
Geosciences Instrumentation and Data Systems

Next-Gen Computing in Geosciences: High-Performance Computing, AI, and Quantum Frontiers

The Earth is an intricately coupled system, and simulating its behavior (from volcanic eruptions to global climate shifts) requires immense computational brute force. For decades, computers have been the quiet backbone of geosciences. Today, however, we stand at a major inflection point. High-Performance Computing (HPC) is pushing the boundaries of high-resolution simulations, while emerging technologies …[Read More]

GM
Geomorphology

Meet the Snow Dunes of Antarctica

Meet the Snow Dunes of Antarctica

By Marine Poizat, PostDoc at the Geological Survey of Finland. Email: marine.poizat@gtk.fi, website: https://www.gtk.fi/en/experts/poizat-marine/. Antarctica has dunes. And they are made of snow. When people think of deserts, they usually picture vast expanses of sand beneath a blazing sun. Yet Antarctica is also a desert, receiving remarkably little precipitation, especially inland. And like other deserts, …[Read More]