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The Cryosphere: Where the World is Frozen DLESE Reviewed Collection
This site contains information about snow, glaciers, permafrost, sea ice and cryospheric trends. The cryosphere is the portion of the Earth's surface where water is in a solid form, usually snow or ice. Seasonal snow cover, the largest component of the cryosphere, covers up to 33 percent of the Earth's total land surface. Glaciers and ice sheets cover about 10 percent of the Earth's land area. Nearly 24 percent of the exposed land of the Northern Hemisphere contains permafrost. Sea ice is important because it regulates exchanges of heat, moisture and salinity in the polar oceans.
Intended for grade levels:
  • Middle (6-8)
  • High (9-12)
  • College (13-14)
  • Graduate / Professional
Type of resource:
  • Visual:
    • Photograph
  • Text:
    • Ref. material
Subject:
  • Cryology
  • Hydrology
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
Copyright and Other Restrictions Information is Unknown.
DLESE Catalog ID: DWEL-000-000-000-300
Educational standards:
  • National Science Education Standards (NSES):
    • 5-8:
      • Unifying concepts and processes:
        • Evidence, models, and explanation
      • D - Earth and space science:
        • Structure of the earth system
    • 9-12:
      • Unifying concepts and processes:
        • Evidence, models, and explanation
      • A - Science as inquiry:
        • Understandings about scientific inquiry
      • D - Earth and space science:
        • Energy in the earth system
      • F - Science in personal / social perspectives:
        • Natural and human-induced hazards
  • National Geography Standards:
    • Physical systems:
      • The physical processes that shape the patterns of Earth's surface
Resource contact / Creator / Publisher:
Principal Investigator: Roger Barry
National Snow and Ice Data Center

Principal Investigator: Richard L. Armstrong
National Snow and Ice Data Center