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PREFERRED TERM

FIRN  

DEFINITION

  • Rounded, well-bonded snow that is older han one year (from NSIDC glossary). A permeable aggregate of small ice grains with densities greater than 0.55 up to 0.82 where begins glacial ice.

BROADER CONCEPT

CHANGE NOTE

  • 2018-12-17 13:29:08.0 [tstevens] Insert Concept add narrower relation (FIRN [6159b9d9-4aa5-4dec-8146-0e47751449ff,362213] - SNOW GRAIN SIZE [a30b2871-4cdc-418a-b00c-969b50008726,368383]);
  • 2019-10-30 13:47:04.0 [sritz] Insert Concept add narrower relation (FIRN [6159b9d9-4aa5-4dec-8146-0e47751449ff,362213] - FIRN AIR CONTENT [0229714c-7960-4179-b671-30ceb9bf68bb,370065]);

URI

https://gcmd.earthdata.nasa.gov/kms/concept/6159b9d9-4aa5-4dec-8146-0e47751449ff

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