11/29/12 - 6:40pm
Subzero temperatures and a blanket of snow can make the Kenai landscape appear to be biologically quiet during the winter, aside from highlights such as the appearance of animal tracks across a frozen lake, or the swoop of an owl in the trees. Just above and beneath the snow surface, however, is a hotbed of winter activity. Physical processes, such as freezing, thawing, compaction, melting, and erosion, are referred collectively as nivation, derived from the Latin word for snow, nix.