12th November 2019

usgs
17

Can ice evaporate?

The air is so dry that when it hits a snowpack, the frozen water evaporates, going directly from the ice to vapor and bypassing the liquid phase entirely. This is called sublimation, and it's a common way for snow to disappear in the arid West."

Besides, can Snow melt when it is below freezing?

If the surface temperatures warm above 32°, the snow and ice touching the surface will warm and begin to melt. This is why we can get melting snow on days when the air temperature is still below freezing. Rain is obviously liquid and therefore above freezing.

Can ice sublime?

Below the melting point temperature, at which point water will turn into water, ice can sublime – that is, transition from a frozen state directly into a vapor state. Sublimation of ice can be demonstrated in hanging a wet sweater on a line in freezing temperatures.
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