Blizzard
The American Meteorological Society defines a blizzard as, A severe weather condition characterized by high winds and reduced visibilities due to falling or blowing snow. The U.S. National Weather Service specifies sustained wind or frequent gusts of 16 m per second (30 kt or 35 mi per hour) or greater, accompanied by falling and/or blowing snow, frequently reducing visibility to less than 400 m (0.25 mi) for 3 hours or longer. Earlier definitions also included a condition of low temperatures, on the order of -7C (20F) or lower, or -12C (10F) or lower (severe blizzard). The name originated in the United States but it is also used in other countries.
Cryomorphology
The geomorphologic study of the processes and landforms of snow and permanently frozen landscapes
Cryogenic processes
Geomorphic processes of freezing and thawing of the landscape, particularly in soil and rock. These processes include frost heaving, jointing, thermal contraction cracking, solifluction, and cryogenic weathering of geologic material in general.
Cryomorphography – The Language of Snow and Ice:
National Snow and Ice Data Center Cryosphere Glossary
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