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  1. Glaciers - National Snow and Ice Data Center

    Glaciers 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 …

  2. Science of Glaciers | National Snow and Ice Data Center

    These types of glaciers tend to surge periodically, while most glaciers never exhibit surges. Components of a glacier Glaciers are dynamic, and several elements contribute to glacier …

  3. Glacier Quick Facts | National Snow and Ice Data Center

    What is a glacier? A glacier is an accumulation of ice and snow that slowly flows over land. Alpine glaciers are frozen rivers of ice, slowly flowing under their own weight down mountainsides …

  4. Why Glaciers Matter | National Snow and Ice Data Center

    Glaciers also impact sea level. The cryosphere consists of all the places on Earth where water is frozen, including snow, sea ice, ice sheets, and glaciers. Though glaciers and ice caps …

  5. Learn - National Snow and Ice Data Center

    Glaciers Two 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 …

  6. Google Earth Activities - National Snow and Ice Data Center

    Largest glaciers Google Earth screenshot — Credit: NSIDC Largest Glaciers and Glacier Complexes in the World Tour the globe to view outlines of the three largest glaciers and …

  7. Homepage | National Snow and Ice Data Center

    Glaciers 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 …

  8. Randolph Glacier Inventory - National Snow and Ice Data Center

    The Randolph Glacier Inventory (RGI) is a global set of glacier outlines; it is intended as a snapshot of the world’s glaciers. This data set provides a single outline for each glacier and is …

  9. Glacier Definition, Types & Examples - Lesson | Study.com

    Understand what a glacier is, and discover the two types of glaciers, including alpine glaciers. Learn how glaciers move, and explore some glacier examples.

  10. What are glacial lakes? - National Snow and Ice Data Center

    Feb 15, 2022 · A glacial lake is a body of water that originates from a glacier. It typically forms at the foot of a glacier, but may form on, in, or under it. As Earth’s climate warms, the world’s …