grounding lines

Glacier types

There are many different kinds of ice. Land ice is ice grounded on land, and above sea level. If this ice melts, it contributes to sea level rise. Glaciers and ice sheets are the most common kind of land ice. The Antarctic Ice Sheet is surrounded by many other kinds of ice. Sea ice is …

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Grounding Lines

What is a grounding line? Almost all of Antarctica is covered in ice. Less than 1% its land area is ice free. This means that, across Antarctica, almost all glaciers end in the ocean, whereupon they calve icebergs. These glaciers can be grounded, or can end in floating ice tongues or larger ice shelves. These …

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