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Bookmark or Share- Learn - National Snow and Ice Data CenterTwo categories of glaciers exist: ice sheets and alpine glaciers. Ice sheets cover vast areas of land in broad domes. Alpine glaciers, are smaller, and found not only at the poles, but in high mountain regions across the globe.
- Science of Glaciers - National Snow and Ice Data CenterThe Largest Glaciers and Glacier Complexes in the World, Version 1 data set provides a list of the three largest glaciers and glacier complexes in each of the 19 glacial regions of the world as defined by the Global Terrestrial Network for Glaciers. The data are provided in shapefile format with an outline for each of the largest ice bodies ...
- Why Glaciers Matter - National Snow and Ice Data CenterOnce the glaciers receded, seawater covered the floor of the glacial trough to create fjords. The famous Matterhorn in Switzerland displays three types of glacial erosion: Cirques are created when glaciers erode the mountainside, scouring into it and creating rounded hollows with steep uphill faces, shaped like tilted bowls. A cirque is often ...
- Homepage | National Snow and Ice Data CenterGlaciers are huge masses of ice, snow, rock, sediment, and often liquid water that originate on land and move down slope under the influence of their own weight and gravity. The two main types are continental glaciers (or ice sheets) and alpine glaciers.
- Glaciers - National Snow and Ice Data CenterGlaciers begin to form when snow remains in the same area year round, where enough snow accumulates to transform into ice. Each year, new layers of snow bury and compress the previous layers. This compression forces the snow to recrystallize, initially forming grains similar to the size and shape of sugar grains.
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