snow line

1. A transient line delineating a snow-covered area or altitude. 2. An area with more than 50% snow cover. 3. The altitude or geographic line separating areas in which snow melts in summer from areas having perennial ice and snow.

Related terms:

• climatic snow line
• snow-cover chart
• snow course
• hinge line
• snow cover
• snow eater
• snow blink
• snow mantle
• ice cap
• powder snow