3/21/2024 0 Comments Salt water density![]() ![]() ![]() For for the pseudoscientific use of the term, see Flood geology § Vapor/water canopy. Sea ice is classified according to whether or not it is able to drift and according to its age.įast ice versus drift (or pack) ice Due to the combined action of winds, currents, water temperature and air temperature fluctuations, sea ice expanses typically undergo a significant amount of deformation. General features and dynamics Hypothetical sea ice dynamics scenario showing some of the most common sea ice features (the bear provides an approximate scale) Depending on location, sea ice expanses may also incorporate icebergs. Sea ice may be contrasted with icebergs, which are chunks of ice shelves or glaciers that calve into the ocean. Due to the action of winds, currents and temperature fluctuations, sea ice is very dynamic, leading to a wide variety of ice types and features. Polar packs undergo a significant yearly cycling in surface extent, a natural process upon which depends the Arctic ecology, including the ocean's ecosystems. Much of the world's sea ice is enclosed within the polar ice packs in the Earth's polar regions: the Arctic ice pack of the Arctic Ocean and the Antarctic ice pack of the Southern Ocean. Sea ice covers about 7% of the Earth's surface and about 12% of the world's oceans. 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). For other uses, see Polar ice packs (disambiguation).īroken pieces of Arctic sea ice with a snow cover
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |