Arctic infrastructure was built on frozen ground – drones and digital twins can help spot the permafrost thaw coming

Image: The Conversation
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- A regional permafrost map can’t tell a builder if a particular foundation or road will survive as temperatures rise. Engineers need to see beneath the surface to find the weaknesses.
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- From the air, Wainwright, Alaska, looks like a perfectly stable band of homes and roads between the Chukchi Sea and a vast, flat tundra. But just below the surface, the frozen ground on which this town was built contains large bodies of ice. Along the eroding coastal bluffs, that hidden ice is…