The amount of snow and ice cover detected on the surface of the Earth from satellite observations, averaged over a month. This parameter gives the percentage of the Earth’s surface area that is covered by snow or ice. This observation can be difficult for a satellite to make. When viewed from space, layers of clouds can look confusingly like snow or ice cover, or ice and snow can be hidden under clouds.Learn lots more about snow and ice at About the Cryosphere.

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