Concept information
Preferred term
ICE FRACTION
Definition
- Sea ice is described by the area it covers, its thickness, its age, and its movement with the winds and ocean currents. Concentration is a unitless term that describes the relative amount of area covered by ice, compared to some reference area. Thus, concentration describes how much of a 25.0 kilometer by 25.0 kilometer (15.5 mile by 15.5 mile) box is covered by sea ice. Ice concentration typically is reported as a percentage (0 to 100 percent ice), a fraction from 0 to 1, or sometimes in tenths (0/10 to 10/10). Our Sea Ice Index products show ice concentration as a percentage. A value of 0 means there is no ice, while a value of 100 means the region is completely covered by ice. (en)
Broader concept
Change note
- 2015-11-23 15:13:09.0 [aaleman] Insert Concept add broader relation (ICE FRACTION [a3f36d7c-4eed-4d7a-8902-a5fcdc1b6261,158489] - SEA ICE CONCENTRATION [8012fda7-3ea4-4ef2-bb4e-0f66d4d9e850,86237]);
- 2017-03-15 13:09:49.0 [mgenazzi] Definition added insert Definition (id: null text: Sea ice is described by the area it covers, its thickness, its age, and its movement with the winds and ocean currents. Concentration is a unitless term that describes the relative amount of area covered by ice, compared to some reference area. Thus, concentration describes how much of a 25.0 kilometer by 25.0 kilometer (15.5 mile by 15.5 mile) box is covered by sea ice. Ice concentration typically is reported as a percentage (0 to 100 percent ice), a fraction from 0 to 1, or sometimes in tenths (0/10 to 10/10). Our Sea Ice Index products show ice concentration as a percentage. A value of 0 means there is no ice, while a value of 100 means the region is completely covered by ice. language code: en);
URI
https://gcmd.earthdata.nasa.gov/kms/concept/a3f36d7c-4eed-4d7a-8902-a5fcdc1b6261
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