Tag Archives: Geophysics

Size-sorted sand creates uncommon length scale in windblown formations

A combination of grain-size distribution and critical wind speed is responsible for megaripples. Continue reading

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New tools for forecasting steam-blast eruptions

Satellite data can pinpoint predictors of future explosive activity. Read more in Physics Today…

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How to build megaripples out of sand

Sorting of grains by steady winds produces rare formations larger than ripples but smaller than dunes. Continue reading

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A Kilauea eruption like no other

The famously active Hawaiian volcano typically erupts at existing fissures and triggers minor earthquakes. This latest event has no such limitations. Continue reading

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Forecasting steam-burst eruptions

Satellite data can pinpoint the locations of potentially life-threatening geothermal events.   Continue reading

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An eruption mechanism for underwater volcanoes

A new model explains how some lava that rises from the seafloor eventually sinks back down.   Continue reading

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Move a plateau, change a climate

Climate models explore how changes in the Tibetan Plateau’s latitudinal position and elevation may have affected ancient Asia’s climate. Continue reading

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The history of a monsoon-inducing plateau

The East Asian monsoon evolved in response to changes in the latitude and elevation of the Tibetan Plateau.  Read more in Physics Today…

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Squeezing oil from stone

A laboratory experiment offers guidance for how to maximize oil extraction through the injection of water.   Continue reading

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Identifying avalanche tipping points

The balance between snow depth and surface slope is the key to how avalanches behave. Continue reading

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