GENERAL GEOLOGY

Detailed explanation-1: -If the accumulated snow survives one melt season, it forms a denser, more compressed layer called firn. The snow and firn are further compressed by overlying snowfall, and the buried layers slowly grow together to form a thickened mass of ice.

Detailed explanation-2: -firn, (German: “of last year”, ) also called Névé, partially compacted granular snow that is the intermediate stage between snow and glacial ice. Firn is found under the snow that accumulates at the head of a glacier.

Detailed explanation-3: -While falling into the atmosphere, if snowflakes cross an air mass where temperature is positive and then cross an air mass where temperature is negative, they will transform into freezing rain.

Detailed explanation-4: -Firn (/fɪərn/; from Swiss German firn “last year’s", cognate with before) is partially compacted névé, a type of snow that has been left over from past seasons and has been recrystallized into a substance denser than névé. It is ice that is at an intermediate stage between snow and glacial ice.

Detailed explanation-5: -In temperate glaciers (Temperate Glaciers), firn is defined as snow that has survived at least one melt season. In Polar Regions, where there is no melt season per se, firn is found under the snowpack, or, in areas of low accumulation, such as the Antarctic Plateau, even at the surface.