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.
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Magma dynamics

Magma dynamics

In this week’s Geodynamics 101 post, Juliane Dannberg, Assistant Professor at the University of Florida, outlines the role of mantle melt generation and transport in geodynamics. Mantle melting and magma transport are important influences on the dynamics and chemical evolution of the Earth’s interior. All of Earth’s oceanic crust and depleted oceanic lithosphere is generated …[Read More]

Groundwater and a ‘green drought’

Groundwater and a ‘green drought’

Post by Andy Baker, professor in the Connected Waters Initiative Centre at UNSW Sydney, Andreas Hartmann, assistant professor in Hydrological Modeling and Water Resources at the University of Freiburg, and Romane Berthelin, PhD student in Hydrological Modeling and Water Resources at the University of Freiburg. Here in New South Wales (NSW) in southeastern Australia, a long-running drought continues. …[Read More]

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Beyond Tectonics: Can only tectonically active planets sustain life?

Beyond Tectonics: Can only tectonically active planets sustain life?

This edition of “Beyond Tectonics” is brought to you by David Waltham. David is a professor of Geophysics at Royal Holloway who studies Geology, Astronomy and Astrobiology. His current research focus is on whether the Earth is “special” because it is habitable, or if the Earth is one of a vast amount of life-bearing planets. …[Read More]

Imaggeo on Mondays: The polje between sky and Earth

Imaggeo on Mondays: The polje between sky and Earth

Poljes are one of the most impressive features existing in karst landscapes. These large flat closed depressions are prone to regular flooding that can form temporary lakes on their surface. Planinsko Polje [in Slovenia] is surely the most famous example of polje existing. The highest floods can reach up to 8 metres above the gauging …[Read More]

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Climate Change & Cryosphere – Summer 2019: The year that the Arctic was sunburned

Climate Change & Cryosphere – Summer 2019: The year that the Arctic was sunburned

June, July and August 2019 saw extensive heat waves across Europe, with air temperatures reaching above 40°C in many countries. In response, record breaking ice melt was observed in Greenland and wildfires in Siberia, Alaska, Arctic Canada and Greenland occurred. A particularly dry and warm summer was responsible for hemisphere-wide changes to the cryosphere. In …[Read More]

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A simple model of convection to study the atmospheric surface layer

A simple model of convection to study the atmospheric surface layer

Since being immortalised in Hollywood film, “the butterfly effect” has become a commonplace concept, despite its obscure origins. Its name derives from an object known as the Lorenz attractor, which has the form of a pair of butterfly wings (Fig. 1). It is a portrait of chaos, the underlying principle hindering long-term weather prediction: just …[Read More]