The ratio of the volume of meltwater that can be derived from a sample of snow to the original volume of the sample; strictly speaking, this is the specific gravity of the snow sample. Freshly fallen
snow usually has a snow density of 0.07 to 0.15; glacial ice formed from compacted snow (or firn) has a maximum density of about 0.91. Values as low as 0.004 have been measured.
In the firn area, the vertical distance between the glacier surface and the summer surface; outside the firn area, the vertical distance between the glacier surface and the ice surface (which may be s
uperimposed ice or glacier ice) at the time of observation.
Snow depth is the depth of accumulated snow on the ground, measured at several points that appear representative of the immediate area and then averaged.
An accumulation of windblown snow deposited in the lee of obstructions or heaped by wind eddies. A crescent-shaped snowdrift, with ends pointing downwind, is known as a snow barchan.
Sea ice terminology. Describes an accumulation of wind-blown snow that is deposited in the lee of an obstacle. A crescent-shaped snowdrift, with ends pointing down-wind, is called a snow barchan.
A mound or bank of snow deposited as sloping surfaces and peaks, often behind obstacles, irregularities, and on lee slopes. Due to eddies in the wind field.