Concept information
Preferred term
sea ice
Definition
- Sea ice arises as seawater freezes. Because ice is less dense than water, it floats on the ocean's surface (as does fresh water ice, which has an even lower density). Sea ice covers about 7% of the Earth's surface and about 12% of the world's oceans. Sea ice does not simply grow and melt. During its lifespan, it is very dynamic. Due to the combined action of winds, currents, water temperature and air temperature fluctuations, sea ice expanses typically undergo a significant amount of deformation. Sea ice is classified according to whether or not it is able to drift and according to its age. (Adapted from: https://en.wikipedia.org/wiki/Sea_ice)
Broader concept
Entry terms
- sea-ice
In other languages
-
French
-
glace marine
URI
http://data.loterre.fr/ark:/67375/QX8-KM2MFB2M-8
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