firn etymology

Etymology:

The word "firn" is derived from the Latin "firnus," meaning "firm snow."

Meaning:

Firn is a type of snow that has been compacted by the weight of overlying snow and has undergone partial transformation into ice. It is typically found in glaciers and ice caps.

Origin:

The word "firnus" was first used in English in the early 19th century to describe the compacted snow found on mountain glaciers. It was likely borrowed from German, where "Firn" has a similar meaning.

Additional Information:

  • Firn is an intermediate stage between snow and ice. It is denser and harder than snow but less dense and harder than ice.
  • Firn can persist for years or even decades, gradually transforming into ice through a process called recrystallization.
  • Firn is an important component of glaciers and ice caps, providing a stable base for ice movement.

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