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But you may be struggling to understand some of the finer details of melting ice, such as the difference between icebergs and ice floe. An iceberg is a large mass of freshwater ice that has broken off of a glacier or an ice shelf. An ice floe is a large, flat pack of floating ice.
Together they store a volume of ice that, if completely melted, would cause global sea level to rise by around 65 metres. The ice sheets of West and East Antarctica have a combined ice volume of 26.37 million cubic kilometres, and the inland ice of Greenland around three million cubic kilometres.
Key results are: (i) a rapid final fall in global sea level of ∼40 m in <2,000 y at the onset of the glacial maximum ∼30,000 y before present (30 ka BP); (ii) a slow fall to −134 m from 29 to 21 ka BP with a maximum grounded ice volume of ∼52 × 10 6 km 3 greater than today; (iii) after an initial short duration rapid rise and a short ...
12 wrz 2022 · Thus the difference between having small floes (as in the MIZ) or larger ones (as in the pack ice) can determine whether sea ice is melted over a seasonal cycle—from 1 m to 1 km, the time to melt sea ice is altered from 90 to 230 days.
Fast ice, or land-fast ice, refers to the large, solid ice sheets that are attached to land. The pack ice consists of the smaller, free-floating pieces of sea ice. They may have formed independently, or may have broken off from the fast ice (Figure 14.1.3). Figure 14.1.3 Fast ice (left) and pack ice (right).
Ice floe refers to the basic element of drift ice, characterized by granular ice floes that move on the sea surface as a two-dimensional system. AI generated definition based on: Encyclopedia of Ocean Sciences (Second Edition), 2009
20 lis 2014 · Key Points: Dynamics and thermodynamics govern evolution of sea ice floe size distribution. Observations indicate major changes in the floe size distribution during summer. Floe breaking in summer increases the number of floes and total floe perimeter. 1 Introduction.
