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snow line
Sign in to saveAlso known as climatic snow line, annual snow line, permanent snow line
point above which snow and ice cover the ground throughout the year
~7 min read
Encyclopedic overview
The climatic snow line is the boundary between a snow-covered and snow-free surface. The actual snow line may adjust seasonally, and be either significantly higher in elevation, or lower. The permanent snow line is the level above which snow will lie all year.
Background
Excerpted from Wikipedia’s “snow line” article, available under the CC BY-SA 4.0 licence.