Antarctic sub gauges sea ice thickness

Level: Topic: Atmosphere

Linking to our studies of global climate change, this interesting article details an increase in sea ice at places.

A novel autonomous sub has acquired the first detailed, high-resolution 3D maps of Antarctic sea ice.

Released from a ship, the vehicle criss-crossed the underside of the floes, using upward-looking sonar to measure their shape.

The researchers involved in the project tell the journal Nature Geoscience that the thickness of the pack ice was greater than they had anticipated.

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